/* roulang page: index */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-sans);
            color: var(--text-main);
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 0.75rem;
        }

        h1 {
            font-size: 2.75rem;
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: 1.375rem;
        }

        p {
            margin: 0 0 1rem;
        }

        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }

        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }

        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(76, 175, 80, 0);
            }
        }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            text-align: center;
            border: 2px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            box-shadow: 0 2px 6px rgba(30, 60, 90, 0.08);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(27, 110, 178, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 18px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(27, 110, 178, 0.25);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(27, 110, 178, 0.15);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* Hero Bento */
        .hero-bento {
            padding: 48px 0 60px;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .bento-main {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .bento-main .hero-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .bento-main h1 {
            font-size: 2.85rem;
            margin-bottom: 18px;
            letter-spacing: -0.025em;
        }

        .bento-main h1 .highlight {
            color: var(--primary);
        }

        .bento-main .hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-body);
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-actions .hero-stats {
            display: flex;
            gap: 18px;
            margin-top: 18px;
            flex-wrap: wrap;
        }

        .hero-stat {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-stat strong {
            font-size: 18px;
            color: var(--text-main);
            font-weight: 700;
        }

        .bento-small {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .bento-small:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .bento-small .bento-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .bento-small h3 {
            font-size: 17px;
            margin-bottom: 6px;
        }

        .bento-small p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .bento-cta-strip {
            grid-column: 2 / 4;
            background: var(--primary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bento-cta-strip .strip-text {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
        }

        .bento-cta-strip .strip-text small {
            display: block;
            font-weight: 400;
            font-size: 13px;
            opacity: 0.85;
            margin-top: 2px;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
        }

        .btn-white:hover {
            background: #f0f6fb;
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* Section title */
        .section-title {
            margin-bottom: 40px;
        }

        .section-title h2 {
            font-size: 2rem;
            margin-bottom: 10px;
        }

        .section-title .section-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .section-title p {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 640px;
            margin-bottom: 0;
        }

        /* Metrics */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .metric-card:nth-child(2n) {
            background: var(--primary-light);
        }

        .metric-icon {
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .metric-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .metric-unit {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* Services matrix */
        .services-matrix {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 20px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .service-card.service-feature {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            flex-direction: row;
            align-items: stretch;
        }

        .service-card .service-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .service-card.service-feature .service-img {
            width: 45%;
            height: auto;
            object-fit: cover;
        }

        .service-card .service-body {
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card.service-feature .service-body {
            padding: 28px 30px;
        }

        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 12px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .service-card.service-feature h3 {
            font-size: 20px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .service-card .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition), gap var(--transition);
        }

        .service-card .service-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* Brand / Deep content */
        .brand-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-text h2 {
            font-size: 1.85rem;
            margin-bottom: 18px;
        }

        .brand-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 16px;
        }

        .brand-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            height: 400px;
            object-fit: cover;
            width: 100%;
        }

        /* Compare */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .compare-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
        }

        .compare-card.compare-after {
            background: var(--primary-light);
            border-color: #c0d8e8;
        }

        .compare-card .compare-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .compare-card .compare-badge {
            font-size: 13px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            background: #EFEFEF;
            color: var(--text-weak);
        }

        .compare-card.compare-after .compare-badge {
            background: var(--primary);
            color: #fff;
        }

        .compare-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .compare-bar-label {
            width: 100px;
            font-size: 13px;
            color: var(--text-body);
            flex-shrink: 0;
            font-weight: 500;
        }

        .compare-bar-track {
            flex: 1;
            height: 10px;
            background: #E8EDF2;
            border-radius: 20px;
            overflow: hidden;
        }

        .compare-bar-fill {
            height: 100%;
            border-radius: 20px;
            background: #90A4AE;
            transition: width 1s ease;
        }

        .compare-card.compare-after .compare-bar-fill {
            background: var(--primary);
        }

        .compare-bar-value {
            width: 56px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            text-align: right;
            flex-shrink: 0;
        }

        /* Entry matrix */
        .entry-matrix {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px 30px;
        }

        .entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 20px;
        }

        .entry-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .entry-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #c0d8e8;
        }

        .entry-item .entry-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin: 0 auto 10px;
        }

        .entry-item h4 {
            font-size: 15px;
            margin-bottom: 4px;
        }

        .entry-item p {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        /* News */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }

        .news-featured {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 18px;
        }

        .news-featured .news-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .news-featured .news-body {
            padding: 24px 26px;
        }

        .news-date-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 12px;
            border-radius: 16px;
            margin-bottom: 10px;
        }

        .news-featured h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }

        .news-featured p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-item .news-date {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            min-width: 70px;
        }

        .news-item .news-content h4 {
            font-size: 15px;
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-item .news-content p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 6px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-content .more-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }

        .news-item .news-content .more-link:hover {
            color: var(--primary-dark);
        }

        /* Campaign / Focus theme */
        .campaign-section {
            background: linear-gradient(135deg, #1B6EB2 0%, #155A94 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .campaign-section h2 {
            color: #fff;
            font-size: 1.85rem;
            margin-bottom: 16px;
        }

        .campaign-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            max-width: 700px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .campaign-tags {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .campaign-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: background var(--transition);
        }

        .campaign-tag:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--primary-light);
        }

        .faq-question .faq-num {
            width: 28px;
            height: 28px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-question .faq-text {
            flex: 1;
        }

        .faq-question .faq-arrow {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-weak);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-question[aria-expanded="true"] .faq-arrow {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            display: none;
            border-top: 1px solid var(--divider);
            padding-top: 16px;
            margin: 0 24px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-answer.show {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Form */
        .form-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .form-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 36px;
            max-width: 720px;
            margin: 0 auto;
        }

        .form-card h2 {
            text-align: center;
            margin-bottom: 8px;
        }

        .form-card .form-hint {
            text-align: center;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 28px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .form-field {
            margin-bottom: 4px;
        }

        .form-field.full-width {
            grid-column: 1 / -1;
        }

        .form-field label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            display: block;
            margin-bottom: 6px;
        }

        .form-field input,
        .form-field select,
        .form-field textarea {
            width: 100%;
            height: 46px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            font-size: 14px;
            font-family: inherit;
            color: var(--text-main);
            background: var(--bg);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-field textarea {
            height: auto;
            min-height: 100px;
            padding: 12px 14px;
            resize: vertical;
        }

        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.15);
            background: #fff;
        }

        .form-trust {
            text-align: center;
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 16px;
            line-height: 1.7;
        }

        .form-trust i {
            color: #4CAF50;
            margin-right: 4px;
        }

        /* Footer */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 40px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 18px;
            color: var(--primary);
            font-weight: 800;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            margin-bottom: 14px;
            color: var(--text-main);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-weak);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--divider);
            padding-top: 18px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--text-weak);
            transition: color var(--transition);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .beian {
            font-size: 11px;
            color: #A0AEBA;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .bento-grid {
                grid-template-columns: 1fr 1fr;
            }
            .bento-main {
                grid-column: 1 / -1;
                grid-row: auto;
            }
            .bento-cta-strip {
                grid-column: 1 / -1;
            }
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .services-matrix {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.service-feature {
                grid-column: 1 / -1;
                grid-row: auto;
                flex-direction: column;
            }
            .service-card.service-feature .service-img {
                width: 100%;
                height: 220px;
            }
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .site-header .site-container {
                flex-wrap: nowrap;
            }
            .site-nav {
                display: none;
            }
            .nav-status {
                display: none;
            }
            .hamburger {
                display: inline-block;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .bento-main {
                padding: 28px 22px;
            }
            .bento-main h1 {
                font-size: 1.9rem;
            }
            .bento-small {
                padding: 18px 16px;
            }
            .bento-cta-strip {
                padding: 18px 20px;
                flex-direction: column;
                text-align: center;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .metric-num {
                font-size: 28px;
            }
            .services-matrix {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .brand-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .brand-img {
                height: 260px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .campaign-section {
                padding: 32px 24px;
            }
            .form-card {
                padding: 28px 22px;
            }
            .form-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }
            .bento-grid {
                grid-template-columns: 1fr;
            }
            .bento-main,
            .bento-cta-strip {
                grid-column: 1 / -1;
            }
            .bento-small {
                grid-column: 1 / -1;
            }
            .bento-cta-strip {
                flex-direction: column;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .compare-bar-label {
                width: 72px;
                font-size: 12px;
            }
            .news-featured .news-img {
                height: 160px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 12px 0 16px;
                margin: 0 18px;
                font-size: 13px;
            }
            .form-card {
                padding: 22px 18px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
            gap: 8px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }
        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }
        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
            white-space: nowrap;
        }
        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }
        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
            line-height: 1;
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }
        .mobile-nav a.mobile-cta {
            background: var(--primary);
            color: #fff !important;
            text-align: center;
            font-weight: 600;
            margin-top: 8px;
        }
        .mobile-nav a.mobile-cta:hover {
            background: var(--primary-dark);
        }
        @media (max-width: 1024px) {
            .site-nav,
            .nav-status {
                display: none;
            }
            .hamburger {
                display: inline-block;
            }
            .mobile-nav.open {
                display: flex;
            }
        }
        @media (min-width: 1025px) {
            .mobile-nav {
                display: none !important;
            }
        }

        /* Page banner */
        .page-banner {
            background: linear-gradient(135deg, #EAF2F8 0%, #F6F8FA 45%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 44px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: rgba(27, 110, 178, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner .site-container {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .page-banner .banner-sub {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 720px;
            margin: 0 0 20px;
            line-height: 1.8;
        }
        .banner-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
        }
        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .banner-meta i {
            color: var(--primary);
        }

        /* Filter bar */
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: 68px;
            z-index: 50;
        }
        .filter-bar .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-weak);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 99px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .filter-tab.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
        }

        /* News list */
        .news-section {
            padding: 48px 0 64px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D0DCE5;
        }
        .news-card-img {
            flex: 0 0 320px;
            min-height: 200px;
            overflow: hidden;
            position: relative;
            background: #EDF2F6;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.03);
        }
        .news-card-img .news-date-badge {
            position: absolute;
            left: 14px;
            top: 14px;
            background: rgba(22, 35, 46, 0.82);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }
        .news-card-body {
            flex: 1;
            padding: 22px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 10px;
        }
        .news-card-top {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }
        .news-tag.tag-training {
            background: #EAF2F8;
            color: var(--primary);
        }
        .news-tag.tag-event {
            background: #FDF0E8;
            color: var(--accent);
        }
        .news-tag.tag-data {
            background: #E8F4F1;
            color: var(--accent-green);
        }
        .news-tag.tag-equipment {
            background: #F0F0E8;
            color: #8A7A4E;
        }
        .news-card-date {
            font-size: 13px;
            color: var(--text-weak);
        }
        .news-card-body h2 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
            line-height: 1.45;
        }
        .news-card-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-readmore {
            align-self: flex-start;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
        }
        .news-readmore:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
            gap: 10px;
        }

        /* Featured deep section */
        .featured-deep {
            padding: 48px 0 64px;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .deep-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            margin: 0 0 12px;
        }
        .deep-content .deep-highlight {
            border-left: 3px solid var(--primary);
            padding-left: 16px;
            color: var(--text-main);
            font-weight: 500;
            background: var(--primary-light);
            padding: 12px 16px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 16px 0;
        }
        .deep-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin: 0 0 56px;
            box-shadow: var(--shadow-md);
        }
        .subscribe-cta-text h3 {
            color: #fff;
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 6px;
        }
        .subscribe-cta-text p {
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            font-size: 14px;
        }
        .subscribe-btn {
            background: #fff;
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            border: none;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .subscribe-btn:hover {
            background: #f0f5f9;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
        }

        /* FAQ */
        .faq-section {
            padding: 40px 0 64px;
        }
        .faq-section .section-title {
            text-align: left;
            margin-bottom: 28px;
        }
        .section-title h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .section-title p {
            font-size: 15px;
            color: var(--text-weak);
            margin: 0;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #D0DCE5;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: #FAFCFD;
        }
        .faq-question .faq-num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
        }
        .faq-question .faq-text {
            flex: 1;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--text-weak);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            display: none;
            padding: 0 22px 18px 60px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid var(--divider);
            padding-top: 14px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA form */
        .contact-section {
            padding: 48px 0 72px;
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: start;
        }
        .contact-info h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 12px;
        }
        .contact-info p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0 0 16px;
        }
        .contact-points {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .contact-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            padding: 8px 0;
            border-bottom: 1px solid var(--divider);
        }
        .contact-points i {
            color: var(--primary);
            margin-top: 4px;
        }
        .contact-form-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-sm);
        }
        .contact-form-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 18px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            text-align: left;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            font-size: 14px;
            font-family: inherit;
            color: var(--text-main);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            outline: none;
        }
        .form-group textarea {
            height: 90px;
            padding-top: 12px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.12);
        }
        .form-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 13px 32px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            font-family: inherit;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: 100%;
            justify-content: center;
        }
        .form-submit:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }
        .form-trust {
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 12px;
        }

        /* Footer */
        .site-footer {
            background: #16232E;
            color: #C6D2DA;
            padding: 48px 0 24px;
            border-top: 4px solid var(--primary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .footer-brand p {
            font-size: 13px;
            color: #A8B8C2;
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin: 0 0 12px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #A8B8C2;
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #8A9AA6;
        }
        .footer-bottom p {
            margin: 0;
        }
        .beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #8A9AA6;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a {
            color: #A8B8C2;
            font-size: 13px;
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .news-card-img {
                flex: 0 0 240px;
            }
            .deep-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .news-card {
                flex-direction: column;
            }
            .news-card-img {
                flex: 0 0 auto;
                min-height: 180px;
                height: 200px;
            }
            .news-card-body {
                padding: 18px 20px;
            }
            .subscribe-cta {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }
            .subscribe-cta-text {
                text-align: center;
            }
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .filter-bar {
                top: 60px;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }
            .page-banner {
                padding: 36px 0 28px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .banner-sub {
                font-size: 0.95rem;
            }
            .news-card-img {
                height: 160px;
                min-height: 160px;
            }
            .news-card-body h2 {
                font-size: 1.05rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --difficulty-beginner: #4E9B8C;
            --difficulty-intermediate: #1B6EB2;
            --difficulty-advanced: #E8864A;
            --difficulty-elite: #B84A4A;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }

        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }

        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
        }

        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .mobile-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff !important;
            box-shadow: 0 2px 10px rgba(27, 110, 178, 0.35);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(27, 110, 178, 0.45);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary) !important;
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff !important;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            box-shadow: none;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* Section Titles */
        .section-head {
            margin-bottom: 40px;
        }

        .section-head .section-kicker {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-head p {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 680px;
            margin: 0;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(135deg, #F0F7FC 0%, #FFFFFF 55%, #F6F8FA 100%);
            border-bottom: 1px solid var(--border);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(27, 110, 178, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(78, 155, 140, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .site-container {
            position: relative;
            z-index: 1;
        }

        .category-hero .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .category-hero .hero-breadcrumb {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .category-hero .hero-breadcrumb a {
            color: var(--text-weak);
        }

        .category-hero .hero-breadcrumb a:hover {
            color: var(--primary);
        }

        .category-hero .hero-breadcrumb span {
            margin: 0 6px;
        }

        .category-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 20px;
            line-height: 1.25;
        }

        .category-hero .hero-desc {
            font-size: 1.125rem;
            color: var(--text-body);
            max-width: 560px;
            margin: 0 0 28px;
            line-height: 1.75;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .category-hero .hero-image-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            aspect-ratio: 4 / 3;
        }

        .category-hero .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .category-hero .hero-hint {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(22, 35, 46, 0.85);
            color: #fff;
            font-size: 12px;
            padding: 8px 16px;
            border-radius: 20px;
            backdrop-filter: blur(6px);
        }

        /* Training Program Cards */
        .training-programs {
            background: var(--bg);
        }

        .program-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .program-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border);
        }

        .program-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .program-card .program-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .program-card .program-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .program-card:hover .program-image img {
            transform: scale(1.04);
        }

        .program-card .difficulty-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .difficulty-tag.level-beginner {
            background: var(--difficulty-beginner);
        }

        .difficulty-tag.level-intermediate {
            background: var(--difficulty-intermediate);
        }

        .difficulty-tag.level-advanced {
            background: var(--difficulty-advanced);
        }

        .difficulty-tag.level-elite {
            background: var(--difficulty-elite);
        }

        .program-card .program-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .program-card .program-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .program-card .program-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .program-card .program-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .program-card .program-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin: 0 0 16px;
            flex: 1;
        }

        .program-card .program-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }

        .program-card .program-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* Training Process */
        .training-process {
            background: #fff;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }

        .process-step {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }

        .process-step .step-number {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 14px;
        }

        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
        }

        /* Data Performance */
        .training-data-section {
            background: var(--bg);
        }

        .data-panel-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .data-panel {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .data-panel:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .data-panel .data-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 14px;
        }

        .data-panel .data-icon.icon-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .data-panel .data-icon.icon-green {
            background: #EAF6F2;
            color: var(--accent-green);
        }

        .data-panel .data-icon.icon-orange {
            background: #FDF3EC;
            color: var(--accent);
        }

        .data-panel .data-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .data-panel .data-unit {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
        }

        .data-panel .data-label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 8px;
        }

        .data-panel .data-trend {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            margin-top: 10px;
        }

        .data-trend.trend-up {
            background: #EAF6F2;
            color: var(--accent-green);
        }

        .data-trend.trend-up-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* Comparison Section */
        .comparison-section {
            background: #fff;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .comparison-card.before-card {
            background: #F9FAFB;
        }

        .comparison-card.after-card {
            background: #F0F7FC;
            border-color: #C8DDF0;
        }

        .comparison-card:hover {
            box-shadow: var(--shadow-sm);
        }

        .comparison-card .comparison-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .comparison-card .comparison-header .badge-compare {
            font-size: 13px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }

        .badge-before {
            background: #EDEFF2;
            color: var(--text-weak);
        }

        .badge-after {
            background: var(--primary);
            color: #fff;
        }

        .comparison-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
        }

        .comparison-card .compare-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .comparison-card .compare-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--divider);
            font-size: 14px;
            color: var(--text-body);
        }

        .comparison-card .compare-list li:last-child {
            border-bottom: none;
        }

        .compare-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .compare-icon.good {
            background: #EAF6F2;
            color: var(--accent-green);
        }

        .compare-icon.warn {
            background: #FDF3EC;
            color: var(--accent);
        }

        /* Audience Section */
        .audience-section {
            background: var(--bg);
        }

        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .audience-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .audience-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
            border-color: #C8DDF0;
        }

        .audience-item .audience-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 12px;
        }

        .audience-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .audience-item p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.55;
        }

        /* Deep Content */
        .deep-content {
            background: #fff;
        }

        .deep-content .content-block {
            max-width: 820px;
            margin: 0 auto;
        }

        .deep-content .content-block h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 20px;
            line-height: 1.35;
        }

        .deep-content .content-block p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.85;
            margin: 0 0 18px;
        }

        .deep-content .content-block p strong {
            color: var(--text-main);
            font-weight: 700;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            background: none;
            border: none;
            padding: 18px 22px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-toggle-icon {
            width: 24px;
            height: 24px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            margin: 0;
            line-height: 1.7;
            border-top: 1px solid var(--divider);
            padding-top: 14px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1B6EB2 0%, #155A94 60%, #124A77 100%);
            border-radius: var(--radius-lg);
            margin: 0 0 80px;
            padding: 48px 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .cta-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 32px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            line-height: 1.35;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }

        .cta-section .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: flex-end;
            flex-wrap: wrap;
        }

        .cta-section .btn-white {
            background: #fff;
            color: var(--primary) !important;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }

        .cta-section .btn-white:hover {
            background: #F0F7FC;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        /* Form Section */
        .form-section {
            background: var(--bg);
        }

        .form-wrapper {
            max-width: 720px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }

        .form-wrapper .form-heading {
            text-align: center;
            margin-bottom: 28px;
        }

        .form-wrapper .form-heading h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 8px;
        }

        .form-wrapper .form-heading p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            text-align: left;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-family: inherit;
            color: var(--text-body);
            background: #FBFCFD;
            transition: all var(--transition);
            box-sizing: border-box;
        }

        .form-group textarea {
            height: auto;
            min-height: 90px;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.6;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.12);
            outline: none;
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23687985' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
        }

        .form-submit {
            width: 100%;
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 700;
            margin-top: 8px;
        }

        .form-trust-note {
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 14px;
        }

        /* Footer */
        .site-footer {
            background: #16232E;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 0;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer .footer-brand h3 {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.03em;
        }

        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 0 22px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-bottom .beian {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-bottom .footer-links {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 12px;
        }

        .site-footer .footer-bottom .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 12px;
        }

        .site-footer .footer-bottom .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .category-hero .hero-image-wrap {
                aspect-ratio: 16 / 7;
            }

            .program-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .data-panel-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .audience-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .comparison-grid {
                grid-template-columns: 1fr;
            }

            .cta-section .cta-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-section .cta-buttons {
                justify-content: flex-start;
            }

            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .site-header .site-container {
                flex-wrap: nowrap;
            }

            .site-nav {
                display: none;
            }

            .nav-status {
                display: none;
            }

            .hamburger {
                display: inline-block;
            }

            .mobile-nav.show {
                display: flex;
            }

            .section-pad {
                padding: var(--section-pad-mobile);
            }

            .category-hero {
                padding: 40px 0;
            }

            .category-hero h1 {
                font-size: 1.9rem;
            }

            .category-hero .hero-image-wrap {
                aspect-ratio: 16 / 9;
            }

            .program-grid {
                grid-template-columns: 1fr;
            }

            .process-steps {
                grid-template-columns: 1fr;
            }

            .data-panel-grid {
                grid-template-columns: 1fr;
            }

            .audience-grid {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 32px 24px;
                border-radius: var(--radius-md);
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .form-wrapper {
                padding: 28px 20px;
                border-radius: var(--radius-md);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero .hero-desc {
                font-size: 1rem;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .program-card .program-body {
                padding: 16px 16px 18px;
            }

            .data-panel .data-value {
                font-size: 1.6rem;
            }

            .section-head h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-pad-xs {
            padding: 40px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-weak);
            margin-bottom: 32px;
            max-width: 720px;
            line-height: 1.7;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-green {
            color: var(--accent-green);
        }
        .text-primary {
            color: var(--primary);
        }
        .text-weak {
            color: var(--text-weak);
        }
        .text-main {
            color: var(--text-main);
        }
        .fw-700 {
            font-weight: 700;
        }
        .fw-600 {
            font-weight: 600;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .mb-12 {
            margin-bottom: 12px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            flex-shrink: 0;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }
        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }
        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }
        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
            transition: all var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a:focus {
            color: var(--primary);
            background: var(--primary-light);
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(27, 110, 178, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }
        .btn-block {
            width: 100%;
        }

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #DDE5EC;
        }

        /* Badge / Tag */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            transition: all var(--transition);
        }
        .tag-accent {
            background: #FDF0E6;
            color: var(--accent);
        }
        .tag-green {
            background: #E8F4F1;
            color: var(--accent-green);
        }
        .tag-outline {
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-weak);
        }

        /* Hero */
        .page-hero {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 64px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .page-hero .site-container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-body);
            margin-bottom: 24px;
            line-height: 1.75;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-kpi-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-kpi {
            text-align: left;
        }
        .hero-kpi .kpi-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }
        .hero-kpi .kpi-label {
            font-size: 13px;
            color: var(--text-weak);
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            aspect-ratio: 4/5;
            object-fit: cover;
        }
        .hero-float-card {
            position: absolute;
            bottom: 24px;
            left: -24px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 16px 20px;
            border: 1px solid var(--border);
            min-width: 180px;
        }
        .hero-float-card .float-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 4px;
        }
        .hero-float-card .float-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
        }
        .hero-float-card .float-trend {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
        }

        /* Data Dashboard Section */
        .data-dashboard {
            background: var(--bg);
        }
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .dash-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: left;
        }
        .dash-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .dash-card .dash-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 12px;
            background: var(--primary-light);
            color: var(--primary);
        }
        .dash-card .dash-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .dash-card .dash-label {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 6px;
        }
        .dash-card .dash-desc {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
        }
        .dash-card.alt-bg {
            background: #F2F6FA;
        }
        .dash-card.accent-border {
            border-left: 3px solid var(--accent);
        }
        .dash-card.green-border {
            border-left: 3px solid var(--accent-green);
        }

        /* Report Types */
        .report-types {
            background: #fff;
        }
        .report-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .report-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .report-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .report-card .report-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .report-card .report-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .report-card .report-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .report-card .report-desc {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .report-card .report-meta {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .report-card .btn {
            align-self: flex-start;
        }

        /* Comparison Section */
        .comparison-section {
            background: var(--bg);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .compare-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: all var(--transition);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-md);
        }
        .compare-card.highlight {
            border-left: 4px solid var(--accent);
        }
        .compare-card.highlight-green {
            border-left: 4px solid var(--accent-green);
        }
        .compare-label {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
        }
        .compare-label.before {
            background: #F0F0F0;
            color: var(--text-weak);
        }
        .compare-label.after {
            background: #E8F4F1;
            color: var(--accent-green);
        }
        .compare-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .compare-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--divider);
            font-size: 14px;
            color: var(--text-body);
        }
        .compare-list li:last-child {
            border-bottom: none;
        }
        .compare-list .metric-name {
            font-weight: 500;
        }
        .compare-list .metric-value {
            font-weight: 700;
            color: var(--text-main);
        }
        .compare-list .metric-value.positive {
            color: var(--accent-green);
        }
        .compare-list .metric-value.negative {
            color: var(--accent);
        }
        .compare-bar-wrap {
            margin-top: 16px;
        }
        .compare-bar-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 4px;
            display: flex;
            justify-content: space-between;
        }
        .compare-bar {
            height: 8px;
            background: #EDF1F4;
            border-radius: 4px;
            overflow: hidden;
        }
        .compare-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: var(--primary);
            transition: width 1s ease;
        }
        .compare-bar-fill.accent {
            background: var(--accent);
        }
        .compare-bar-fill.green {
            background: var(--accent-green);
        }

        /* Data Flow */
        .data-flow {
            background: #fff;
        }
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .flow-step {
            text-align: center;
            padding: 24px 16px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .flow-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .flow-step .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .flow-step .step-title {
            font-weight: 700;
            color: var(--text-main);
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .flow-step .step-desc {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* CTA / Form */
        .cta-section {
            background: #fff;
        }
        .cta-panel {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-panel .cta-title {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-panel .cta-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .cta-panel .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        .cta-panel .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
        }
        .cta-form-card .form-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-body);
            background: #fff;
            transition: all var(--transition);
            font-family: inherit;
        }
        .form-group textarea {
            height: auto;
            min-height: 90px;
            padding: 12px 14px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.12);
            outline: none;
        }
        .form-hint {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 8px;
            line-height: 1.6;
        }

        /* Newsletter / Deep Content */
        .deep-content {
            background: var(--bg);
        }
        .deep-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-top: 24px;
        }
        .deep-block {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .deep-block h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .deep-block p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .deep-block ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .deep-block ul li {
            font-size: 0.9rem;
            color: var(--text-body);
            padding: 8px 0;
            border-bottom: 1px solid var(--divider);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .deep-block ul li:last-child {
            border-bottom: none;
        }
        .deep-block ul li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #16232E;
            color: #B8C4CE;
            padding: 56px 0 32px;
            font-size: 14px;
            line-height: 1.7;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .site-footer .footer-brand p {
            color: #9AABB8;
            font-size: 13px;
            line-height: 1.7;
            max-width: 320px;
            margin: 0;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: #9AABB8;
            font-size: 13px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: #7A8A98;
        }
        .site-footer .footer-bottom .beian {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .site-footer .footer-bottom .footer-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .site-footer .footer-bottom .footer-links a {
            color: #7A8A98;
            font-size: 12px;
            transition: color var(--transition);
        }
        .site-footer .footer-bottom .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .site-nav {
                gap: 0;
            }
            .site-nav a.nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-status {
                font-size: 11px;
                gap: 8px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .report-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: inline-flex;
            }
            .site-nav {
                display: none;
            }
            .nav-status {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .mobile-nav.mobile-open {
                display: flex;
            }
            .site-header .site-container {
                flex-wrap: nowrap;
                gap: 12px;
            }
            .logo-wrap {
                font-size: 1.3rem;
            }
            .logo-wrap .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
                white-space: nowrap;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: 2;
            }
            .hero-float-card {
                left: 12px;
                bottom: 12px;
                min-width: 150px;
                padding: 12px 16px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi .kpi-num {
                font-size: 1.5rem;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .deep-cols {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-panel {
                padding: 24px;
            }
            .cta-panel .cta-title {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .dashboard-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .dash-card {
                padding: 16px;
            }
            .dash-card .dash-num {
                font-size: 1.5rem;
            }
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .report-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-float-card {
                display: none;
            }
            .cta-form-card {
                padding: 20px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .compare-card {
                padding: 20px;
            }
            .compare-list li {
                font-size: 13px;
                flex-wrap: wrap;
                gap: 4px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --primary-deep: #0F4C7A;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-main);
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
        }

        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
            gap: 12px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            flex-shrink: 0;
        }

        .logo-wrap .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .logo-wrap .logo-text small {
            display: block;
            font-size: 0.625rem;
            font-weight: 500;
            color: var(--text-weak);
            letter-spacing: 0.04em;
            margin-top: -2px;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }

        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }

        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
            white-space: nowrap;
        }

        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }

        .nav-status .status-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-status .notif-badge {
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            font-size: 11px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
            line-height: 1;
        }

        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-nav a:hover,
        .mobile-nav a:focus {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* ========== 页内 Hero ========== */
        .page-hero {
            background: linear-gradient(135deg, #F0F5F9 0%, #EAF2F8 45%, #F6F8FA 100%);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 340px;
            height: 340px;
            background: radial-gradient(circle, rgba(27, 110, 178, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -30px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(232, 134, 74, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .hero-inner {
            display: grid;
            grid-template-columns: 1.25fr 0.75fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: #B8C4CC;
        }

        .page-hero h1 {
            font-size: 2.25rem;
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-desc {
            font-size: 1.0625rem;
            color: var(--text-body);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 20px;
        }

        .hero-metrics {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-metric-item {
            display: flex;
            flex-direction: column;
        }

        .hero-metric-item .metric-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-metric-item .metric-label {
            font-size: 13px;
            color: var(--text-weak);
        }

        .hero-visual {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        .hero-visual .visual-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-main);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-visual .visual-badge i {
            color: var(--primary);
        }

        /* ========== 装备筛选区 ========== */
        .equipment-section {
            background: var(--bg);
        }

        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: 1.625rem;
            margin-bottom: 8px;
        }

        .section-heading p {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 680px;
            margin: 0;
        }

        .equipment-layout {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 28px;
            align-items: start;
        }

        .filter-panel {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            position: sticky;
            top: 88px;
            box-shadow: var(--shadow-sm);
        }

        .filter-panel h3 {
            font-size: 15px;
            margin-bottom: 16px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .filter-group {
            margin-bottom: 18px;
        }

        .filter-group:last-child {
            margin-bottom: 0;
        }

        .filter-group-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-weak);
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .filter-tag {
            display: inline-block;
            padding: 5px 12px;
            font-size: 13px;
            color: var(--text-body);
            border: 1px solid var(--border);
            border-radius: 999px;
            background: var(--card-bg);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-reset {
            width: 100%;
            padding: 8px;
            background: none;
            border: 1px dashed var(--border);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-weak);
            transition: all var(--transition);
            margin-top: 4px;
        }

        .filter-reset:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: #FFF9F4;
        }

        .equipment-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .equipment-item {
            display: grid;
            grid-template-columns: 180px 1fr auto;
            gap: 18px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            position: relative;
        }

        .equipment-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CBD8E2;
        }

        .equipment-item .eq-thumb {
            width: 180px;
            height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: #F0F5F9;
            flex-shrink: 0;
        }

        .equipment-item .eq-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .equipment-item:hover .eq-thumb img {
            transform: scale(1.04);
        }

        .eq-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .eq-name {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.35;
        }

        .eq-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .eq-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
        }

        .eq-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
        }

        .eq-tag.tag-category {
            background: #EAF6F2;
            color: var(--accent-green);
        }

        .eq-tag.tag-scene {
            background: #FFF3EA;
            color: var(--accent);
        }

        .eq-action {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            justify-content: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .eq-action .eq-arrow {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border: none;
            font-size: 16px;
            transition: all var(--transition);
        }

        .equipment-item:hover .eq-action .eq-arrow {
            background: var(--primary);
            color: #fff;
        }

        .eq-maintenance {
            font-size: 12px;
            color: var(--text-weak);
            text-align: right;
            line-height: 1.5;
        }

        .eq-maintenance strong {
            color: var(--text-body);
            font-weight: 600;
            display: block;
            font-size: 12px;
        }

        /* ========== 深度内容区 ========== */
        .deep-section {
            background: #fff;
        }

        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .deep-text h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .deep-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        .deep-text .highlight-box {
            background: var(--primary-light);
            border-left: 3px solid var(--primary);
            padding: 14px 18px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 14px;
            color: var(--text-main);
            margin: 16px 0;
        }

        .deep-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .deep-visual img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .deep-visual .overlay-info {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 20px 18px;
            background: linear-gradient(transparent, rgba(22, 35, 46, 0.75));
            color: #fff;
            font-size: 13px;
            display: flex;
            gap: 16px;
        }

        .deep-visual .overlay-info span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== 场景方案 ========== */
        .scene-section {
            background: var(--bg);
        }

        .scene-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .scene-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            min-height: 160px;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .scene-card:first-child {
            grid-row: span 2;
            min-height: 340px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            background: linear-gradient(160deg, #EAF2F8 0%, #F6F8FA 60%, #FFFFFF 100%);
        }

        .scene-card .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .scene-card h3 {
            font-size: 1.0625rem;
            margin-bottom: 8px;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .scene-card .scene-img {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .scene-card:first-child .scene-img {
            height: 180px;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        /* ========== 装备指标 ========== */
        .metric-strip {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

        .metric-strip .metric-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            align-items: center;
            text-align: center;
        }

        .metric-strip .metric-block {
            padding: 0 12px;
        }

        .metric-strip .metric-block .m-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .metric-strip .metric-block .m-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .metric-strip .metric-block .m-detail {
            font-size: 12px;
            color: #98A4AE;
            margin-top: 2px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: var(--card-bg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-question .faq-q-text {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-question .faq-num {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0;
            padding-top: 4px;
            border-top: 1px solid var(--divider);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg);
        }

        .cta-card {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
            align-items: center;
            box-shadow: 0 12px 36px rgba(27, 110, 178, 0.25);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-text h2 {
            color: #fff;
            font-size: 1.625rem;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 0;
            position: relative;
        }

        .cta-form {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 22px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            position: relative;
        }

        .cta-form .form-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .cta-form label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 4px;
            display: block;
            text-align: left;
        }

        .cta-form input,
        .cta-form select {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 12px;
            font-size: 14px;
            color: var(--text-main);
            background: #FAFCFE;
            margin-bottom: 12px;
            transition: all var(--transition);
            font-family: inherit;
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.12);
            outline: none;
        }

        .cta-form .form-btn {
            width: 100%;
            height: 46px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
        }

        .cta-form .form-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }

        .cta-form .form-trust {
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 10px;
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #16232E;
            color: #C5CFD6;
            padding: 56px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.375rem;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: #9AACB8;
            max-width: 320px;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #9AACB8;
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding: 20px 0 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #7A8C99;
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom .beian {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .footer-bottom .beian span {
            font-size: 12px;
            color: #7A8C99;
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom .footer-links a {
            color: #7A8C99;
            font-size: 13px;
        }

        .footer-bottom .footer-links a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .nav-status {
                display: none;
            }

            .page-hero .hero-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-visual {
                min-height: 220px;
            }

            .hero-visual img {
                min-height: 220px;
            }

            .equipment-layout {
                grid-template-columns: 200px 1fr;
                gap: 20px;
            }

            .equipment-item {
                grid-template-columns: 140px 1fr;
                gap: 14px;
            }

            .equipment-item .eq-thumb {
                width: 140px;
                height: 104px;
            }

            .eq-action {
                grid-column: span 2;
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }

            .scene-grid {
                grid-template-columns: 1fr 1fr;
            }

            .scene-card:first-child {
                grid-column: span 2;
            }

            .deep-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-card {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .metric-strip .metric-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .site-header .site-container {
                flex-wrap: nowrap;
            }

            .site-nav {
                display: none;
            }

            .hamburger {
                display: inline-block;
            }

            .mobile-nav {
                display: flex;
            }

            .mobile-nav.open {
                display: flex;
            }

            .page-hero {
                padding: 36px 0 32px;
            }

            .page-hero h1 {
                font-size: 1.75rem;
            }

            .hero-metrics {
                gap: 16px;
            }

            .hero-metric-item .metric-num {
                font-size: 1.375rem;
            }

            .equipment-layout {
                grid-template-columns: 1fr;
            }

            .filter-panel {
                position: static;
                margin-bottom: 0;
            }

            .equipment-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 14px;
            }

            .equipment-item .eq-thumb {
                width: 100%;
                height: 160px;
            }

            .eq-action {
                grid-column: span 1;
                flex-direction: row;
                justify-content: space-between;
            }

            .scene-grid {
                grid-template-columns: 1fr;
            }

            .scene-card:first-child {
                grid-column: span 1;
                min-height: 240px;
            }

            .scene-card {
                min-height: auto;
            }

            .scene-card .scene-img {
                height: 120px;
            }

            .scene-card:first-child .scene-img {
                height: 140px;
            }

            .metric-strip .metric-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .cta-card {
                padding: 24px 18px;
                border-radius: var(--radius-md);
            }

            .cta-text h2 {
                font-size: 1.375rem;
            }

            .section-pad {
                padding: 48px 0;
            }

            .section-pad-sm {
                padding: 32px 0;
            }
        }

        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }

            .page-hero h1 {
                font-size: 1.5rem;
            }

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .hero-metric-item .metric-num {
                font-size: 1.25rem;
            }

            .equipment-item .eq-thumb {
                height: 140px;
            }

            .metric-strip .metric-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .metric-strip .metric-block .m-num {
                font-size: 1.625rem;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }

            .faq-answer p {
                font-size: 13px;
            }

            .deep-visual img {
                height: 220px;
            }

            .logo-wrap .logo-text {
                font-size: 1.125rem;
            }

            .logo-wrap .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9375rem;
            }
        }

/* roulang page: category5 */
:root {
 --primary: #1B6EB2;
 --primary-dark: #155A94;
 --primary-light: #EAF2F8;
 --bg: #F6F8FA;
 --card-bg: #FFFFFF;
 --text-main: #16232E;
 --text-body: #34444E;
 --text-weak: #687985;
 --border: #E3EAF0;
 --divider: #E8EDF2;
 --accent: #E8864A;
 --accent-green: #4E9B8C;
 --radius-sm: 6px;
 --radius-md: 10px;
 --radius-lg: 12px;
 --shadow-sm: 0 4px 16px rgba(30,60,90,0.06);
 --shadow-md: 0 8px 24px rgba(30,60,90,0.12);
 --shadow-hover: 0 12px 32px rgba(30,60,90,0.16);
 --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
 --section-pad-desktop: 80px 0;
 --section-pad-mobile: 48px 0;
 --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}
html {
 scroll-behavior: smooth;
 -webkit-text-size-adjust: 100%;
}
body {
 font-family: var(--font-sans);
 font-size: 16px;
 line-height: 1.7;
 color: var(--text-body);
 background: var(--bg);
 margin: 0;
 padding: 0;
 overflow-x: hidden;
 -webkit-font-smoothing: antialiased;
}
a {
 color: var(--primary);
 text-decoration: none;
 transition: color var(--transition), border-color var(--transition), background var(--transition);
}
a:hover {
 color: var(--primary-dark);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
 outline: 2px solid var(--primary);
 outline-offset: 3px;
 border-radius: 2px;
}
img {
 max-width: 100%;
 height: auto;
 display: block;
}
button {
 font-family: inherit;
 cursor: pointer;
}
.site-container {
 max-width: 1200px;
 margin: 0 auto;
 padding: 0 24px;
}
.section-pad {
 padding: var(--section-pad-desktop);
}

/* Header / Nav */
.site-header {
 background: #fff;
 border-bottom: 1px solid var(--border);
 box-shadow: 0 2px 8px rgba(30,60,90,0.05);
 position: sticky;
 top: 0;
 z-index: 100;
}
.site-header .site-container {
 display: flex;
 align-items: center;
 justify-content: space-between;
 flex-wrap: wrap;
 min-height: 68px;
}
.logo-wrap {
 display: flex;
 align-items: center;
 gap: 8px;
 font-size: 1.5rem;
 font-weight: 800;
 color: var(--primary);
 letter-spacing: -0.01em;
}
.logo-wrap .logo-icon {
 width: 36px;
 height: 36px;
 background: var(--primary);
 color: #fff;
 border-radius: 8px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 1.125rem;
}
.site-nav {
 display: flex;
 align-items: center;
 gap: 2px;
 flex-wrap: wrap;
}
.site-nav a.nav-link {
 display: inline-block;
 padding: 8px 14px;
 font-size: 14px;
 font-weight: 500;
 color: var(--text-body);
 border-radius: var(--radius-sm);
 border-bottom: 2px solid transparent;
 transition: all var(--transition);
 white-space: nowrap;
}
.site-nav a.nav-link:hover,
.site-nav a.nav-link:focus {
 color: var(--primary);
 background: var(--primary-light);
 border-bottom-color: var(--primary);
}
.site-nav a.nav-link.active {
 color: var(--primary);
 font-weight: 700;
 border-bottom-color: var(--primary);
 background: var(--primary-light);
}
.nav-status {
 display: flex;
 align-items: center;
 gap: 12px;
 font-size: 12px;
 color: var(--text-weak);
}
.nav-status .status-dot {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: #4CAF50;
 display: inline-block;
 animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
 0%,100% { opacity: 1; transform: scale(1); }
 50% { opacity: 0.55; transform: scale(0.85); }
}
.nav-cta {
 background: var(--primary);
 color: #fff !important;
 padding: 10px 20px;
 border-radius: var(--radius-sm);
 font-weight: 600;
 font-size: 14px;
 box-shadow: 0 2px 8px rgba(27,110,178,0.3);
 transition: all var(--transition);
 display: inline-block;
}
.nav-cta:hover {
 background: var(--primary-dark);
 box-shadow: 0 4px 16px rgba(27,110,178,0.4);
 transform: translateY(-1px);
}
.hamburger {
 display: none;
 background: none;
 border: 1px solid var(--border);
 border-radius: var(--radius-sm);
 padding: 8px 12px;
 font-size: 18px;
 color: var(--text-main);
}
.mobile-nav {
 display: none;
 background: #fff;
 border-top: 1px solid var(--border);
 padding: 12px 24px 16px;
 flex-direction: column;
 gap: 4px;
}
.mobile-nav a {
 display: block;
 padding: 10px 12px;
 font-size: 15px;
 color: var(--text-body);
 border-radius: var(--radius-sm);
 border-bottom: 1px solid transparent;
}
.mobile-nav a:hover,
.mobile-nav a.active {
 color: var(--primary);
 background: var(--primary-light);
 border-bottom-color: var(--primary);
}

/* Hero section - compact banner */
.hero-banner {
 background: linear-gradient(180deg, #F2F7FA 0%, #EAF2F8 100%);
 border-bottom: 1px solid var(--border);
 padding: 40px 0 46px;
 position: relative;
 overflow: hidden;
}
.hero-banner::after {
 content: "";
 position: absolute;
 top: -80px;
 right: -60px;
 width: 280px;
 height: 280px;
 background: radial-gradient(circle, rgba(27,110,178,0.08) 0%, transparent 70%);
 border-radius: 50%;
 pointer-events: none;
}
.hero-banner .site-container {
 position: relative;
 z-index: 2;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 32px;
 flex-wrap: wrap;
}
.hero-banner-text {
 flex: 1 1 560px;
 max-width: 640px;
}
.hero-banner-text h1 {
 font-size: 2rem;
 font-weight: 800;
 color: var(--text-main);
 margin: 0 0 12px;
 line-height: 1.35;
 letter-spacing: -0.01em;
}
.hero-banner-text .hero-sub {
 font-size: 1.06rem;
 color: var(--text-body);
 margin: 0 0 20px;
 line-height: 1.7;
 max-width: 600px;
}
.hero-banner-cta {
 display: flex;
 gap: 12px;
 flex-wrap: wrap;
}
.hero-banner-cta .btn {
 padding: 12px 24px;
 font-size: 15px;
 font-weight: 600;
 border-radius: var(--radius-sm);
 border: none;
 transition: all var(--transition);
 display: inline-flex;
 align-items: center;
 gap: 8px;
}
.btn-primary {
 background: var(--primary);
 color: #fff;
 box-shadow: 0 3px 12px rgba(27,110,178,0.3);
}
.btn-primary:hover {
 background: var(--primary-dark);
 box-shadow: 0 6px 20px rgba(27,110,178,0.4);
 transform: translateY(-1px);
}
.btn-outline {
 background: #fff;
 color: var(--primary);
 border: 1px solid var(--primary);
}
.btn-outline:hover {
 background: var(--primary-light);
 color: var(--primary-dark);
}
.hero-data-cards {
 flex: 0 0 280px;
 display: flex;
 flex-direction: column;
 gap: 14px;
}
.hero-stat-card {
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
 display: flex;
 align-items: center;
 gap: 14px;
 transition: all var(--transition);
}
.hero-stat-card:hover {
 box-shadow: var(--shadow-md);
 transform: translateX(4px);
}
.hero-stat-icon {
 width: 42px;
 height: 42px;
 border-radius: 10px;
 background: var(--primary-light);
 color: var(--primary);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 1.1rem;
 flex-shrink: 0;
}
.hero-stat-num {
 font-size: 1.4rem;
 font-weight: 800;
 color: var(--text-main);
 line-height: 1.2;
}
.hero-stat-label {
 font-size: 0.8rem;
 color: var(--text-weak);
}

/* Section titles */
.section-title {
 font-size: 1.65rem;
 font-weight: 800;
 color: var(--text-main);
 margin: 0 0 10px;
 line-height: 1.4;
}
.section-subtitle {
 font-size: 1rem;
 color: var(--text-weak);
 margin: 0 0 32px;
 max-width: 720px;
 line-height: 1.7;
}
.section-head {
 margin-bottom: 32px;
}

/* Filter + equipment list */
.equipment-filter-section {
 background: var(--bg);
}
.filter-grid {
 display: flex;
 gap: 28px;
 align-items: flex-start;
 flex-wrap: wrap;
}
.filter-sidebar {
 flex: 0 0 240px;
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 padding: 22px 18px;
 box-shadow: var(--shadow-sm);
 position: sticky;
 top: 88px;
}
.filter-group {
 margin-bottom: 22px;
}
.filter-group:last-child {
 margin-bottom: 0;
}
.filter-group-title {
 font-size: 0.85rem;
 font-weight: 700;
 color: var(--text-main);
 margin: 0 0 10px;
 text-transform: uppercase;
 letter-spacing: 0.03em;
}
.filter-tags {
 display: flex;
 flex-wrap: wrap;
 gap: 6px;
}
.filter-tag {
 display: inline-block;
 padding: 6px 12px;
 font-size: 0.78rem;
 font-weight: 500;
 color: var(--text-body);
 background: #fff;
 border: 1px solid var(--border);
 border-radius: 20px;
 cursor: pointer;
 transition: all var(--transition);
 white-space: nowrap;
}
.filter-tag:hover {
 border-color: var(--primary);
 color: var(--primary);
}
.filter-tag.active {
 background: var(--primary);
 color: #fff;
 border-color: var(--primary);
 font-weight: 600;
}
.filter-reset {
 display: inline-block;
 margin-top: 12px;
 font-size: 0.8rem;
 color: var(--text-weak);
 cursor: pointer;
 background: none;
 border: none;
 padding: 0;
 text-decoration: underline;
}
.filter-reset:hover {
 color: var(--primary);
}
.equipment-list {
 flex: 1 1 0;
 min-width: 0;
}
.equipment-item {
 display: flex;
 gap: 18px;
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 padding: 18px;
 margin-bottom: 16px;
 box-shadow: var(--shadow-sm);
 transition: all var(--transition);
}
.equipment-item:hover {
 box-shadow: var(--shadow-md);
 border-color: #C9D8E6;
 transform: translateY(-2px);
}
.equipment-thumb {
 flex: 0 0 140px;
 width: 140px;
 height: 96px;
 border-radius: var(--radius-sm);
 overflow: hidden;
 background: var(--primary-light);
}
.equipment-thumb img {
 width: 100%;
 height: 100%;
 object-fit: cover;
}
.equipment-info {
 flex: 1;
 min-width: 0;
}
.equipment-name {
 font-size: 1.06rem;
 font-weight: 700;
 color: var(--text-main);
 margin: 0 0 6px;
}
.equipment-desc {
 font-size: 0.92rem;
 color: var(--text-body);
 margin: 0 0 10px;
 line-height: 1.65;
}
.equipment-tags {
 display: flex;
 flex-wrap: wrap;
 gap: 6px;
}
.equip-tag {
 display: inline-block;
 padding: 3px 10px;
 font-size: 0.72rem;
 font-weight: 500;
 border-radius: 4px;
 background: #F2F6FA;
 color: var(--text-weak);
 border: 1px solid #E3EAF0;
}
.equip-tag.sport-tag {
 background: #EAF2F8;
 color: var(--primary);
 border-color: #C9D8E6;
}
.equip-tag.type-tag {
 background: #FFF4EC;
 color: var(--accent);
 border-color: #F5D9C6;
}
.equip-tag.scene-tag {
 background: #EDF7F4;
 color: var(--accent-green);
 border-color: #CDE6DF;
}
.no-results {
 display: none;
 text-align: center;
 padding: 40px 20px;
 background: #fff;
 border: 1px dashed var(--border);
 border-radius: var(--radius-lg);
 color: var(--text-weak);
 font-size: 0.95rem;
}

/* Scene cards */
.scene-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 22px;
}
.scene-card {
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 padding: 24px 22px;
 box-shadow: var(--shadow-sm);
 transition: all var(--transition);
}
.scene-card:hover {
 box-shadow: var(--shadow-md);
 transform: translateY(-3px);
}
.scene-card-icon {
 width: 44px;
 height: 44px;
 border-radius: 10px;
 background: var(--primary-light);
 color: var(--primary);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 1.2rem;
 margin-bottom: 14px;
}
.scene-card h3 {
 font-size: 1.1rem;
 font-weight: 700;
 color: var(--text-main);
 margin: 0 0 8px;
}
.scene-card p {
 font-size: 0.92rem;
 color: var(--text-body);
 margin: 0;
 line-height: 1.65;
}

/* Equipment data panel */
.equipment-data-panel {
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-sm);
 padding: 30px 28px;
}
.data-panel-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 20px;
}
.data-panel-item {
 text-align: center;
 padding: 16px 12px;
 border-radius: var(--radius-sm);
 background: #F9FBFD;
 border: 1px solid #EDF2F6;
}
.data-panel-item:nth-child(even) {
 background: #F2F6FA;
}
.data-panel-num {
 font-size: 2rem;
 font-weight: 800;
 color: var(--primary);
 line-height: 1.2;
}
.data-panel-label {
 font-size: 0.82rem;
 color: var(--text-weak);
 margin-top: 6px;
 line-height: 1.4;
}

/* Maintenance guide content */
.guide-content {
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-sm);
 padding: 32px 30px;
}
.guide-content h3 {
 font-size: 1.2rem;
 font-weight: 700;
 color: var(--text-main);
 margin: 0 0 12px;
}
.guide-content p {
 font-size: 0.95rem;
 color: var(--text-body);
 margin: 0 0 16px;
 line-height: 1.75;
}
.guide-content .guide-list {
 margin: 0 0 16px;
 padding-left: 20px;
}
.guide-content .guide-list li {
 margin-bottom: 8px;
 font-size: 0.93rem;
 line-height: 1.7;
}

/* FAQ */
.faq-section {
 background: #fff;
 border-top: 1px solid var(--border);
 border-bottom: 1px solid var(--border);
}
.faq-wrap {
 max-width: 860px;
 margin: 0 auto;
}
.accordion {
 list-style: none;
 margin: 0;
 padding: 0;
}
.accordion-item {
 border-bottom: 1px solid var(--divider);
 margin-bottom: 0;
}
.accordion-item:first-child {
 border-top: 1px solid var(--divider);
}
.accordion-title {
 display: flex;
 align-items: center;
 justify-content: space-between;
 padding: 18px 4px;
 font-size: 1rem;
 font-weight: 600;
 color: var(--text-main);
 cursor: pointer;
 transition: color var(--transition);
}
.accordion-title:hover {
 color: var(--primary);
}
.accordion-title .fa-chevron-down {
 transition: transform var(--transition);
 font-size: 0.85rem;
 color: var(--text-weak);
}
.accordion-item.is-active .accordion-title .fa-chevron-down {
 transform: rotate(180deg);
}
.accordion-content {
 display: none;
 padding: 0 4px 20px;
}
.accordion-item.is-active .accordion-content {
 display: block;
}
.accordion-content p {
 margin: 0;
 font-size: 0.93rem;
 color: var(--text-body);
 line-height: 1.7;
}

/* CTA */
.cta-strip {
 background: var(--primary);
 border-radius: var(--radius-lg);
 padding: 36px 32px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 24px;
 flex-wrap: wrap;
 box-shadow: 0 8px 28px rgba(27,110,178,0.25);
}
.cta-strip-text {
 flex: 1 1 400px;
}
.cta-strip-text h3 {
 font-size: 1.35rem;
 font-weight: 800;
 color: #fff;
 margin: 0 0 8px;
}
.cta-strip-text p {
 font-size: 0.95rem;
 color: rgba(255,255,255,0.9);
 margin: 0;
 line-height: 1.6;
}
.cta-strip .btn {
 background: #fff;
 color: var(--primary);
 padding: 13px 28px;
 font-size: 15px;
 font-weight: 700;
 border-radius: var(--radius-sm);
 border: none;
 transition: all var(--transition);
 white-space: nowrap;
}
.cta-strip .btn:hover {
 background: var(--primary-light);
 transform: translateY(-2px);
 box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

/* Form */
.form-section {
 background: #fff;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-sm);
 padding: 36px 32px;
}
.form-grid {
 display: grid;
 grid-template-columns: repeat(2, 1fr);
 gap: 18px;
}
.form-field {
 margin-bottom: 18px;
}
.form-field label {
 display: block;
 font-size: 0.88rem;
 font-weight: 600;
 color: var(--text-main);
 margin-bottom: 6px;
}
.form-field input,
.form-field select {
 width: 100%;
 height: 46px;
 border: 1px solid var(--border);
 border-radius: var(--radius-sm);
 padding: 0 14px;
 font-size: 0.95rem;
 color: var(--text-body);
 background: #FBFCFD;
 transition: all var(--transition);
 font-family: inherit;
}
.form-field input:focus,
.form-field select:focus {
 border-color: var(--primary);
 background: #fff;
 box-shadow: 0 0 0 3px rgba(27,110,178,0.1);
 outline: none;
}
.form-submit {
 background: var(--primary);
 color: #fff;
 padding: 13px 32px;
 font-size: 15px;
 font-weight: 700;
 border-radius: var(--radius-sm);
 border: none;
 cursor: pointer;
 transition: all var(--transition);
 box-shadow: 0 3px 12px rgba(27,110,178,0.3);
}
.form-submit:hover {
 background: var(--primary-dark);
 box-shadow: 0 6px 20px rgba(27,110,178,0.4);
 transform: translateY(-1px);
}
.form-trust {
 font-size: 0.82rem;
 color: var(--text-weak);
 margin-top: 14px;
 line-height: 1.6;
}
.form-trust i {
 color: var(--accent-green);
 margin-right: 4px;
}

/* Footer */
.site-footer {
 background: #fff;
 border-top: 1px solid var(--border);
 padding: 48px 0 28px;
 margin-top: 0;
}
.site-footer .footer-grid {
 display: grid;
 grid-template-columns: 2fr 1fr 1fr 1fr;
 gap: 32px;
 margin-bottom: 32px;
}
.footer-brand h3 {
 font-size: 1.2rem;
 font-weight: 800;
 color: var(--primary);
 margin: 0 0 10px;
}
.footer-brand p {
 font-size: 0.88rem;
 color: var(--text-weak);
 margin: 0;
 line-height: 1.6;
}
.footer-col h4 {
 font-size: 0.88rem;
 font-weight: 700;
 color: var(--text-main);
 margin: 0 0 12px;
}
.footer-col ul {
 list-style: none;
 margin: 0;
 padding: 0;
}
.footer-col li {
 margin-bottom: 8px;
}
.footer-col a {
 font-size: 0.88rem;
 color: var(--text-weak);
 transition: color var(--transition);
}
.footer-col a:hover {
 color: var(--primary);
}
.footer-bottom {
 display: flex;
 align-items: center;
 justify-content: space-between;
 flex-wrap: wrap;
 gap: 12px;
 border-top: 1px solid var(--divider);
 padding-top: 20px;
 font-size: 0.82rem;
 color: var(--text-weak);
}
.footer-bottom .beian {
 display: flex;
 gap: 14px;
 flex-wrap: wrap;
 font-size: 0.78rem;
}
.footer-links {
 display: flex;
 align-items: center;
 gap: 8px;
}
.footer-links a {
 font-size: 0.82rem;
 color: var(--text-weak);
}
.footer-links a:hover {
 color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
 .site-nav a.nav-link {
  padding: 8px 10px;
  font-size: 13px;
 }
 .nav-status {
  display: none;
 }
 .filter-grid {
  flex-direction: column;
 }
 .filter-sidebar {
  flex: 0 0 auto;
  width: 100%;
  position: static;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
 }
 .filter-group {
  flex: 1 1 180px;
  margin-bottom: 0;
 }
 .scene-grid {
  grid-template-columns: repeat(2, 1fr);
 }
 .data-panel-grid {
  grid-template-columns: repeat(2, 1fr);
 }
 .site-footer .footer-grid {
  grid-template-columns: 1fr 1fr;
 }
 .form-grid {
  grid-template-columns: 1fr;
 }
}
@media (max-width: 768px) {
 .site-header .site-container {
  min-height: 56px;
 }
 .site-nav {
  display: none;
 }
 .hamburger {
  display: block;
 }
 .mobile-nav.show {
  display: flex;
 }
 .hero-banner {
  padding: 28px 0 32px;
 }
 .hero-banner .site-container {
  flex-direction: column;
  align-items: flex-start;
 }
 .hero-banner-text h1 {
  font-size: 1.5rem;
 }
 .hero-data-cards {
  flex: 0 0 auto;
  width: 100%;
  flex-direction: row;
  flex-wrap: wrap;
 }
 .hero-stat-card {
  flex: 1 1 calc(50% - 8px);
  min-width: 140px;
 }
 .equipment-thumb {
  flex: 0 0 100px;
  width: 100px;
  height: 72px;
 }
 .scene-grid {
  grid-template-columns: 1fr;
 }
 .data-panel-grid {
  grid-template-columns: 1fr 1fr;
 }
 .site-footer .footer-grid {
  grid-template-columns: 1fr;
  gap: 24px;
 }
 .footer-bottom {
  flex-direction: column;
  align-items: flex-start;
 }
 .section-pad {
  padding: var(--section-pad-mobile);
 }
 .cta-strip {
  padding: 24px 20px;
  flex-direction: column;
  text-align: left;
  align-items: flex-start;
 }
}
@media (max-width: 520px) {
 .site-container {
  padding: 0 16px;
 }
 .hero-stat-card {
  flex: 1 1 100%;
 }
 .filter-sidebar {
  padding: 16px 14px;
 }
 .equipment-item {
  flex-direction: column;
 }
 .equipment-thumb {
  flex: 0 0 auto;
  width: 100%;
  height: 140px;
 }
 .data-panel-grid {
  grid-template-columns: 1fr;
 }
 .form-grid {
  grid-template-columns: 1fr;
 }
 .cta-strip .btn {
  width: 100%;
  text-align: center;
 }
}

/* roulang page: category6 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }

        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }
        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }
        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }
        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }

        /* Hero */
        .venue-hero {
            position: relative;
            background: linear-gradient(180deg, rgba(22, 35, 46, 0.82) 0%, rgba(22, 35, 46, 0.72) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            color: #fff;
            padding: 88px 0 72px;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .venue-hero .hero-badge {
            display: inline-block;
            background: rgba(27, 110, 178, 0.85);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }
        .venue-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 18px;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }
        .venue-hero .hero-sub {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff !important;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            border: none;
            box-shadow: 0 2px 10px rgba(27, 110, 178, 0.35);
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(27, 110, 178, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: #fff;
            color: var(--primary);
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid var(--primary);
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        /* Countdown strip */
        .countdown-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.04);
            padding: 16px 0;
        }
        .countdown-strip .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .countdown-label {
            font-weight: 600;
            color: var(--text-main);
            font-size: 14px;
        }
        .countdown-timer {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .countdown-timer .time-unit {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            min-width: 52px;
            text-align: center;
        }
        .countdown-timer .time-sep {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-weak);
        }

        /* Section titles */
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-weak);
            margin: 0 0 36px;
            max-width: 680px;
            line-height: 1.7;
        }
        .section-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
        }
        .badge-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.03em;
        }

        /* Full-width venue card */
        .venue-feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            margin-bottom: 48px;
            transition: box-shadow var(--transition);
        }
        .venue-feature-card:hover {
            box-shadow: var(--shadow-md);
        }
        .venue-feature-img {
            position: relative;
            min-height: 360px;
            background: url('/assets/images/coverpic/cover-5.webp') center/cover no-repeat;
        }
        .venue-feature-img .img-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(27, 110, 178, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 16px;
        }
        .venue-feature-body {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .venue-feature-body h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 12px;
        }
        .venue-feature-body p {
            color: var(--text-body);
            margin: 0 0 18px;
            line-height: 1.75;
        }
        .venue-meta-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .venue-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .venue-meta-item i {
            color: var(--primary);
            font-size: 14px;
        }

        /* Staggered two-column venue cards */
        .venue-stagger-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 12px;
        }
        .venue-info-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .venue-info-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .venue-info-card .vic-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .venue-info-card .vic-img .vic-capacity {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(22, 35, 46, 0.85);
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 14px;
            font-weight: 500;
        }
        .venue-info-card .vic-body {
            padding: 22px 24px;
        }
        .venue-info-card .vic-body h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .venue-info-card .vic-body p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0 0 14px;
            line-height: 1.65;
        }
        .vic-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .vic-tag {
            background: var(--bg);
            color: var(--text-body);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 12px;
            border: 1px solid var(--border);
        }
        .vic-tag.primary {
            background: var(--primary-light);
            color: var(--primary);
            border-color: #CDE0EE;
        }

        /* Data panel */
        .venue-data-panel {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 40px 36px;
            margin-top: 48px;
        }
        .venue-data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            margin-top: 24px;
        }
        .vdg-item {
            text-align: center;
            padding: 20px 16px;
            background: var(--bg);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .vdg-item:hover {
            background: var(--primary-light);
        }
        .vdg-item .vdg-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .vdg-item .vdg-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* Process steps */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 12px;
        }
        .process-step {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-step .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 14px;
        }
        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #CDE0EE;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            display: none;
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            border-top: 1px solid var(--divider);
            padding-top: 14px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            background: var(--primary-light);
        }

        /* CTA */
        .cta-panel {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 48px;
            box-shadow: 0 8px 24px rgba(27, 110, 178, 0.25);
        }
        .cta-panel h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 8px;
        }
        .cta-panel p {
            color: rgba(255, 255, 255, 0.88);
            margin: 0;
            font-size: 15px;
            line-height: 1.65;
        }
        .cta-panel .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .cta-panel .btn-white:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
        }

        /* Contact form */
        .contact-form-section {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 40px 36px;
            margin-top: 48px;
        }
        .contact-form-section h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .contact-form-section .form-sub {
            color: var(--text-weak);
            font-size: 14px;
            margin-bottom: 24px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            height: 48px;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-family: inherit;
            color: var(--text-body);
            background: #fff;
            transition: all var(--transition);
            width: 100%;
        }
        .form-group textarea {
            height: 120px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 110, 178, 0.1);
            outline: none;
        }
        .form-trust {
            margin-top: 16px;
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .form-trust i {
            color: var(--accent-green);
        }

        /* Footer */
        .site-footer {
            background: #1A2B3A;
            color: rgba(255, 255, 255, 0.82);
            padding: 56px 0 28px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 0 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .beian {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .venue-feature-card {
                grid-template-columns: 1fr;
            }
            .venue-feature-img {
                min-height: 260px;
            }
            .process-flow {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-nav {
                display: none;
            }
            .nav-status {
                display: none;
            }
            .hamburger {
                display: inline-block;
            }
            .mobile-nav {
                display: flex;
            }
            .mobile-nav.hidden-mobile {
                display: none;
            }
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .venue-hero {
                padding: 64px 0 56px;
                min-height: auto;
            }
            .venue-hero h1 {
                font-size: 2rem;
            }
            .venue-stagger-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .venue-data-panel {
                padding: 28px 20px;
            }
            .cta-panel {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .beian {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }
            .venue-hero h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-white {
                text-align: center;
                width: 100%;
            }
            .countdown-strip .site-container {
                flex-direction: column;
                text-align: center;
            }
            .venue-feature-body {
                padding: 24px 18px;
            }
            .venue-data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .vdg-item .vdg-num {
                font-size: 1.6rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1B6EB2;
            --primary-dark: #155A94;
            --primary-light: #EAF2F8;
            --bg: #F6F8FA;
            --card-bg: #FFFFFF;
            --text-main: #16232E;
            --text-body: #34444E;
            --text-weak: #687985;
            --border: #E3EAF0;
            --divider: #E8EDF2;
            --accent: #E8864A;
            --accent-green: #4E9B8C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 4px 16px rgba(30, 60, 90, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 60, 90, 0.12);
            --shadow-hover: 0 12px 32px rgba(30, 60, 90, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --section-pad-desktop: 80px 0;
            --section-pad-mobile: 48px 0;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-weak);
            max-width: 720px;
            line-height: 1.7;
            margin: 0;
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 90, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .site-header .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 68px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .logo-wrap .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }
        .site-nav a.nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .site-nav a.nav-link:hover,
        .site-nav a.nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
            border-bottom-color: var(--primary);
        }
        .site-nav a.nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: var(--primary-light);
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .nav-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(27, 110, 178, 0.3);
            transition: all var(--transition);
            display: inline-block;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(27, 110, 178, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 24px 16px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid transparent;
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* Hero */
        .member-hero {
            background: linear-gradient(135deg, #F6F8FA 0%, #EAF2F8 55%, #F0F5FA 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            padding: 72px 0 64px;
        }
        .member-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -60px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(27, 110, 178, 0.06);
            pointer-events: none;
        }
        .member-hero .site-container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .member-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin: 0 0 20px;
        }
        .member-hero h1 .highlight {
            color: var(--primary);
        }
        .member-hero p.hero-lead {
            font-size: 1.15rem;
            color: var(--text-body);
            line-height: 1.75;
            max-width: 560px;
            margin: 0 0 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-block;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: none;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(27, 110, 178, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 18px rgba(27, 110, 178, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .hero-image-wrap {
            position: relative;
        }
        .hero-image-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }
        .hero-badge {
            position: absolute;
            bottom: -18px;
            left: 20px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
        }
        .hero-badge .badge-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .hero-badge .badge-text strong {
            display: block;
            font-size: 16px;
            color: var(--text-main);
        }
        .hero-badge .badge-text span {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* Member stats strip */
        .member-stats {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .member-stats .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 16px 12px;
            border-radius: var(--radius-md);
            background: var(--bg);
            border: 1px solid var(--border);
        }
        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* Tier cards - staggered layout */
        .tier-section {
            background: var(--bg);
        }
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 48px;
            align-items: start;
        }
        .tier-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 32px 28px;
            transition: all var(--transition);
            position: relative;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: var(--primary);
        }
        .tier-card.tier-mid {
            margin-top: -20px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--primary);
        }
        .tier-card.tier-mid:hover {
            margin-top: -20px;
            transform: translateY(-6px);
        }
        .tier-card.tier-high {
            margin-top: -40px;
            border: 2px solid var(--accent);
            box-shadow: var(--shadow-md);
        }
        .tier-card.tier-high:hover {
            margin-top: -40px;
            transform: translateY(-6px);
        }
        .tier-badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 20px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .tier-badge.badge-basic {
            background: #F0F4F8;
            color: var(--text-weak);
        }
        .tier-badge.badge-pro {
            background: var(--primary-light);
            color: var(--primary);
        }
        .tier-badge.badge-elite {
            background: #FFF4EC;
            color: var(--accent);
        }
        .tier-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .tier-card .tier-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin: 12px 0 16px;
            line-height: 1.2;
        }
        .tier-card .tier-price span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
        }
        .tier-card p.tier-desc {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin: 0 0 20px;
        }
        .tier-card ul.tier-benefits {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }
        .tier-card ul.tier-benefits li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 1px solid var(--divider);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .tier-card ul.tier-benefits li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 4px;
        }
        .tier-card ul.tier-benefits li:last-child {
            border-bottom: none;
        }
        .tier-card .btn {
            width: 100%;
            padding: 12px 20px;
            font-size: 14px;
        }

        /* Benefits detail */
        .benefits-detail {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .benefit-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .benefit-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary);
            transform: translateY(-4px);
        }
        .benefit-card .benefit-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 12px;
        }
        .benefit-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .benefit-card p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
        }

        /* Community activity */
        .community-activity {
            background: var(--bg);
        }
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .activity-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 24px;
            transition: all var(--transition);
        }
        .activity-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .activity-card .activity-date {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .activity-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .activity-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin: 0;
        }

        /* Growth path */
        .growth-path {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .growth-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
        }
        .growth-steps::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: var(--divider);
            z-index: 0;
        }
        .growth-step {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .growth-step .step-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 2px solid var(--primary);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto 12px;
        }
        .growth-step h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }
        .growth-step p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 40px auto 0;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: color var(--transition);
            user-select: none;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1B6EB2 0%, #155A94 55%, #124A76 100%);
            padding: 72px 0;
        }
        .cta-section .cta-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.3;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            max-width: 480px;
            line-height: 1.6;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 14px 32px;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
        }
        .cta-section .btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        /* Footer */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            margin: 0 0 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-weak);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--divider);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .beian {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .beian span {
            font-size: 12px;
            color: #9AAAB4;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a {
            font-size: 12px;
            color: var(--text-weak);
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .member-hero .site-container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .member-hero h1 {
                font-size: 2.2rem;
            }
            .tier-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .growth-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .growth-steps::before {
                display: none;
            }
            .activity-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .member-stats .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-nav {
                display: none;
            }
            .nav-status {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-nav.show {
                display: flex;
            }
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .section-title {
                font-size: 1.6rem;
            }
            .member-hero {
                padding: 48px 0 40px;
            }
            .member-hero h1 {
                font-size: 1.8rem;
            }
            .member-hero p.hero-lead {
                font-size: 1rem;
            }
            .hero-image-wrap img {
                height: 260px;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: 32px;
            }
            .tier-card.tier-mid,
            .tier-card.tier-high {
                margin-top: 0;
            }
            .tier-card.tier-mid:hover,
            .tier-card.tier-high:hover {
                margin-top: 0;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            .activity-grid {
                grid-template-columns: 1fr;
            }
            .growth-steps {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-section .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-section p {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .beian {
                justify-content: center;
            }
            .footer-links {
                justify-content: center;
            }
            .member-stats .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding: 0 16px;
            }
            .member-hero h1 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .growth-steps {
                grid-template-columns: 1fr;
            }
            .hero-badge {
                position: static;
                margin-top: 12px;
            }
            .hero-image-wrap img {
                height: 220px;
            }
        }