/* roulang page: index */
:root {
            --primary: #1b5af5;
            --primary-dark: #0f3ebd;
            --primary-light: #eaf0fe;
            --accent: #00b894;
            --accent-light: #d4f5ec;
            --dark-bg: #0f1a2e;
            --text: #1c2b3a;
            --text-muted: #5b6b7c;
            --text-light: #8a99a8;
            --bg: #f6f8fc;
            --bg-white: #ffffff;
            --bg-gray: #eef2f7;
            --border: #e4e9f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 12px rgba(18, 38, 63, 0.06);
            --shadow-md: 0 8px 30px rgba(18, 38, 63, 0.10);
            --shadow-lg: 0 20px 50px rgba(18, 38, 63, 0.14);
            --transition: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            font-size: 16px;
        }

        body.no-scroll {
            overflow: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        section {
            scroll-margin-top: 84px;
        }

        .grid-container {
            max-width: 1200px;
        }

        .section {
            padding: 100px 0;
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-gray {
            background: var(--bg-gray);
        }

        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            padding: 7px 18px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .section-tag-dark {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .section-head .section-title {
            color: var(--text);
        }

        .section-head.light .section-title {
            color: #ffffff;
        }

        .section-head.light .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: #008a6e;
        }

        .badge-light {
            background: rgba(27, 90, 245, 0.08);
            color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 999px;
            font-size: 0.98rem;
            font-weight: 600;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
            text-align: center;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn:focus,
        .btn:focus-visible {
            outline: 3px solid rgba(27, 90, 245, 0.25);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 6px 22px rgba(27, 90, 245, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 10px 30px rgba(27, 90, 245, 0.4);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.55);
            color: #ffffff;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #ffffff;
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
        }

        .btn-white {
            background: #ffffff;
            color: var(--primary);
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.12);
        }

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #ffffff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            border-color: #ffffff;
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

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

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

        .feature-card {
            padding: 34px 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.45rem;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #ffffff;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.75;
        }

        .category-list {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

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

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

        .category-media {
            min-height: 340px;
            position: relative;
            padding: 0;
            overflow: hidden;
        }

        .category-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .category-card:hover .category-media img {
            transform: scale(1.04);
        }

        .category-content {
            padding: 48px 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }

        .category-content .badge {
            margin-bottom: 16px;
        }

        .category-content h3 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text);
        }

        .category-content p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.85;
            margin-bottom: 26px;
        }

        .category-content .btn {
            align-self: flex-start;
        }

        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .step-card {
            position: relative;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 44px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            text-align: center;
            transition: var(--transition);
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(27, 90, 245, 0.25);
        }

        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #ffffff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 22px;
            box-shadow: 0 8px 20px rgba(27, 90, 245, 0.3);
        }

        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.8;
        }

        .stats-section {
            background: var(--dark-bg) url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            position: relative;
            color: #ffffff;
            padding: 100px 0;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.92), rgba(27, 90, 245, 0.55));
        }

        .stats-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }

        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.94rem;
            letter-spacing: 0.02em;
        }

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

        .news-card {
            display: flex;
            gap: 20px;
            padding: 26px 24px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(6px);
            border-color: rgba(27, 90, 245, 0.25);
        }

        .news-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-title {
            font-size: 1.08rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .news-title a {
            color: var(--text);
        }

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

        .news-summary {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
        }

        .news-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .empty-tip {
            background: var(--bg-white);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 40px;
            text-align: center;
            color: var(--text-light);
        }

        .empty-tip i {
            font-size: 2.4rem;
            margin-bottom: 14px;
            display: block;
            color: var(--border);
        }

        .empty-tip p {
            font-size: 1rem;
        }

        .sidebar-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card h4 i {
            color: var(--primary);
        }

        .sidebar-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 9px 0;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.65;
            border-bottom: 1px dashed var(--border);
        }

        .sidebar-list li:last-child {
            border-bottom: none;
        }

        .sidebar-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 0.85rem;
        }

        .sidebar-card-accent {
            background: linear-gradient(135deg, var(--primary-light), #f0f6ff);
            border-color: rgba(27, 90, 245, 0.15);
        }

        .sidebar-card-accent h4 i {
            color: var(--accent);
        }

        .sidebar-card-accent p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-wrap .accordion {
            background: transparent;
            border: none;
            margin: 0;
        }

        .faq-wrap .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-wrap .accordion-item.is-active {
            box-shadow: var(--shadow-md);
            border-color: rgba(27, 90, 245, 0.35) !important;
        }

        .faq-wrap .accordion-title {
            background: transparent !important;
            border: none !important;
            color: var(--text) !important;
            font-size: 1.05rem;
            font-weight: 600;
            padding: 22px 56px 22px 26px !important;
            position: relative;
            border-radius: var(--radius) !important;
            line-height: 1.5;
        }

        .faq-wrap .accordion-title:hover,
        .faq-wrap .accordion-title:focus {
            color: var(--primary) !important;
            background: var(--primary-light) !important;
        }

        .faq-wrap .accordion-title::before {
            content: '\f067' !important;
            font-family: 'Font Awesome 6 Free' !important;
            font-weight: 900 !important;
            position: absolute;
            right: 24px !important;
            left: auto !important;
            top: 50% !important;
            transform: translateY(-50%) !important;
            color: var(--primary) !important;
            font-size: 0.9rem !important;
            line-height: 1 !important;
        }

        .faq-wrap .accordion-item.is-active > .accordion-title::before {
            content: '\f068' !important;
        }

        .faq-wrap .accordion-content {
            border: none !important;
            background: transparent !important;
            color: var(--text-muted) !important;
            line-height: 1.85 !important;
            padding: 0 26px 24px !important;
            font-size: 0.95rem;
        }

        .cta-section {
            background: linear-gradient(135deg, #1a4fce 0%, #0f3ebd 100%);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cta-inner {
            text-align: center;
            color: #ffffff;
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-inner p {
            max-width: 640px;
            margin: 0 auto 34px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.65);
            padding-top: 76px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-logo {
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo i {
            color: var(--primary);
            font-size: 1.4rem;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.85;
            font-size: 0.94rem;
            max-width: 360px;
        }

        .footer-links h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.94rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a:hover {
            color: #ffffff;
            transform: translateX(4px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            text-align: center;
            font-size: 0.84rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(18, 38, 63, 0.04);
        }

        .site-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--text);
            font-size: 1.12rem;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .site-logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 4px 14px rgba(27, 90, 245, 0.28);
            flex-shrink: 0;
        }

        .site-nav .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-nav .nav-menu a {
            display: block;
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }

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

        .site-nav .nav-menu a.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(27, 90, 245, 0.35);
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--bg-white);
            color: var(--text);
            font-size: 1.15rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .menu-toggle:focus {
            outline: 3px solid rgba(27, 90, 245, 0.2);
            outline-offset: 2px;
        }

        .hero {
            position: relative;
            min-height: 76vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #ffffff;
            padding: 120px 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88), rgba(27, 90, 245, 0.58));
        }

        .hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            padding: 9px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: #ffffff;
            margin-bottom: 26px;
        }

        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-desc {
            max-width: 680px;
            margin: 0 auto 38px;
            font-size: 1.12rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 56px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
            padding: 0 20px;
        }

        .hero-stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffffff;
        }

        .hero-stat-label {
            font-size: 0.84rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        @media (max-width: 1024px) {
            .section {
                padding: 80px 0;
            }

            .hero h1 {
                font-size: 2.6rem;
            }

            .steps-wrap {
                gap: 20px;
            }

            .stats-grid {
                gap: 24px;
            }

            .category-content {
                padding: 40px 30px;
            }

            .footer-grid {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .hero {
                min-height: auto;
                padding: 90px 0;
            }

            .hero h1 {
                font-size: 2rem;
            }

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

            .section-title {
                font-size: 1.65rem;
            }

            .menu-toggle {
                display: flex;
            }

            .site-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                z-index: 99;
            }

            .site-nav.is-open {
                max-height: 360px;
                overflow-y: auto;
            }

            .site-nav .nav-menu {
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
            }

            .site-nav .nav-menu a {
                border-radius: 12px;
                padding: 14px 18px;
                font-size: 1rem;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-num {
                font-size: 2.2rem;
            }

            .category-card {
                border-radius: var(--radius);
            }

            .category-media {
                min-height: 260px;
            }

            .category-content {
                padding: 30px 24px;
            }

            .category-content h3 {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .cta-section {
                padding: 64px 0;
            }

            .cta-inner h2 {
                font-size: 1.6rem;
            }

            .cta-btns {
                flex-direction: column;
                width: 100%;
            }

            .cta-btns .btn {
                width: 100%;
            }

            .site-logo .logo-text {
                font-size: 1rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.7rem;
            }

            .hero-btns {
                flex-direction: column;
                width: 100%;
            }

            .hero-btns .btn {
                width: 100%;
            }

            .hero-stats {
                gap: 20px;
                margin-top: 40px;
            }

            .hero-stat-num {
                font-size: 1.4rem;
            }

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

            .section-head {
                margin-bottom: 40px;
            }

            .feature-card {
                padding: 26px 20px;
            }

            .news-card {
                flex-direction: column;
                gap: 14px;
                padding: 20px;
            }

            .news-icon {
                width: 44px;
                height: 44px;
            }

            .category-media {
                min-height: 200px;
            }

            .category-content {
                padding: 24px 20px;
            }

            .category-content .btn {
                width: 100%;
            }

            .footer-links a {
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0d2b4e;
            --primary-light: #1b4a8a;
            --primary-dark: #071d36;
            --accent: #d4a24e;
            --accent-light: #e8c078;
            --bg: #f4f7fb;
            --bg-deep: #eef2f8;
            --card-bg: #ffffff;
            --text: #16233a;
            --text-muted: #5f6b82;
            --border: #e2e8f2;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(13, 43, 78, 0.05);
            --shadow-md: 0 8px 28px rgba(13, 43, 78, 0.08);
            --shadow-lg: 0 18px 48px rgba(13, 43, 78, 0.12);
            --transition: all 0.3s ease;
            --header-h: 78px;
            --section-gap: 96px;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        p {
            margin: 0 0 1rem;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(13, 43, 78, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(13, 43, 78, 0.32);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #ffffff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(212, 162, 78, 0.25);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 162, 78, 0.35);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(212, 162, 78, 0.5);
            outline-offset: 2px;
        }

        /* ============ Header / Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 0.01em;
            padding: 8px 0;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .site-logo:hover {
            color: var(--primary);
        }
        .site-nav .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-nav .nav-menu li a {
            display: inline-block;
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .site-nav .nav-menu li a:hover {
            color: var(--primary);
            background: var(--bg-deep);
        }
        .site-nav .nav-menu li a.active {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(13, 43, 78, 0.2);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-deep);
        }

        /* ============ 页面 Banner ============ */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 29, 54, 0.9) 0%, rgba(13, 43, 78, 0.78) 55%, rgba(13, 43, 78, 0.45) 100%);
            z-index: 1;
        }
        .page-banner .grid-container {
            position: relative;
            z-index: 2;
        }
        .banner-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.15em;
            text-transform: uppercase;
            margin-bottom: 14px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 16px;
            border-radius: 50px;
        }
        .banner-kicker i {
            font-size: 0.8rem;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 900;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            line-height: 1.25;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .page-banner p {
            max-width: 640px;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .breadcrumb-bar {
            padding: 14px 0;
            background: var(--bg-deep);
            border-bottom: 1px solid var(--border);
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .breadcrumb-bar a {
            color: var(--primary-light);
            font-weight: 500;
        }
        .breadcrumb-bar a:hover {
            color: var(--accent);
        }
        .breadcrumb-bar i {
            font-size: 0.7rem;
            margin: 0 8px;
            color: #a0aac0;
        }

        /* ============ 通用区块 ============ */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-deep);
        }
        .section-white {
            background: #ffffff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-kicker {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 2.1rem;
            font-weight: 900;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .section-header p {
            max-width: 560px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ============ 概览区块 ============ */
        .overview-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin: 48px 0;
        }
        .overview-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .overview-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .overview-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 60%, rgba(13, 43, 78, 0.35));
        }
        .overview-badge {
            position: absolute;
            bottom: 22px;
            left: 22px;
            z-index: 2;
            background: rgba(13, 43, 78, 0.85);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 10px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .overview-badge i {
            color: var(--accent);
        }
        .overview-content h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .overview-content p {
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 18px;
        }
        .overview-points {
            margin-top: 16px;
        }
        .overview-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 12px;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .overview-points li i {
            flex: 0 0 auto;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(212, 162, 78, 0.14);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            margin-top: 4px;
        }

        /* ============ 登录流程 ============ */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 36px 20px 30px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 162, 78, 0.35);
        }
        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 6px 16px rgba(13, 43, 78, 0.25);
            position: relative;
            z-index: 1;
        }
        .step-card:nth-child(even) .step-number {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 6px 16px rgba(212, 162, 78, 0.3);
        }
        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .step-line {
            position: absolute;
            top: 54px;
            right: -14px;
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            display: none;
        }
        .step-card:not(:last-child) .step-line {
            display: block;
        }

        /* ============ 登录方式卡片 ============ */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .method-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 40px 32px 36px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .method-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .method-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
        }
        .method-card:hover::before {
            opacity: 1;
        }
        .method-icon {
            width: 76px;
            height: 76px;
            margin: 0 auto 22px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #fff;
            box-shadow: 0 10px 24px rgba(13, 43, 78, 0.25);
        }
        .method-card:nth-child(2) .method-icon {
            background: linear-gradient(135deg, #b8823a, var(--accent));
        }
        .method-card:nth-child(3) .method-icon {
            background: linear-gradient(135deg, #155e75, #0e7490);
        }
        .method-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .method-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            line-height: 1.75;
        }
        .method-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 6px;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--bg-deep);
            color: var(--primary-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(212, 162, 78, 0.12);
            border-color: var(--accent);
            color: var(--primary);
        }

        /* ============ 登录前准备 ============ */
        .checklist-wrap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 22px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .check-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(212, 162, 78, 0.3);
        }
        .check-icon {
            flex: 0 0 auto;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(13, 43, 78, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .check-item h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .check-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ============ 故障排查 ============ */
        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .trouble-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 30px 32px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .trouble-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .trouble-icon {
            flex: 0 0 auto;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(13, 43, 78, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
        }
        .trouble-card h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .trouble-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .trouble-action {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent);
            cursor: pointer;
        }
        .trouble-action:hover {
            color: var(--primary);
        }

        /* ============ FAQ ============ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 162, 78, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            cursor: pointer;
            user-select: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            flex: 0 0 auto;
            color: var(--accent);
            font-size: 0.9rem;
            transition: transform 0.35s ease;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            background: rgba(244, 247, 251, 0.5);
        }
        .faq-answer p {
            padding: 0 28px 22px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            position: relative;
            padding: 80px 0;
            text-align: center;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            overflow: hidden;
        }
        .cta-section::before {
            content: '\f3ed';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 4%;
            bottom: -40px;
            font-size: 11rem;
            color: rgba(255, 255, 255, 0.06);
            transform: rotate(-12deg);
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .footer-logo {
            font-size: 1.15rem;
            color: #fff;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo i {
            color: var(--accent);
            font-size: 1.3rem;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 360px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links ul li a::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.7rem;
            color: var(--accent);
            opacity: 0;
            transform: translateX(-6px);
            transition: var(--transition);
        }
        .footer-links ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-links ul li a:hover::before {
            opacity: 1;
            transform: translateX(0);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            margin-bottom: 0;
        }

        /* ============ 响应式 ============ */
        @media screen and (max-width: 1024px) {
            .steps-wrap {
                grid-template-columns: repeat(3, 1fr);
            }
            .step-card .step-line {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --section-gap: 64px;
            }
            .site-header {
                height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .site-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                box-shadow: 0 16px 40px rgba(13, 43, 78, 0.12);
                border-bottom: 1px solid var(--border);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }
            .site-nav.nav-open {
                max-height: 400px;
            }
            .site-nav .nav-menu {
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                align-items: stretch;
            }
            .site-nav .nav-menu li a {
                display: block;
                text-align: center;
                border-radius: var(--radius-md);
            }
            .page-banner {
                min-height: 280px;
                padding: 60px 0;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .overview-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .overview-media img {
                height: 300px;
            }
            .steps-wrap {
                grid-template-columns: 1fr 1fr;
            }
            .method-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .checklist-wrap {
                grid-template-columns: 1fr;
            }
            .trouble-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-brand {
                grid-column: auto;
            }
        }

        @media screen and (max-width: 520px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .site-logo {
                font-size: 1rem;
                gap: 8px;
            }
            .site-logo i {
                font-size: 1.1rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner p {
                font-size: 0.92rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
            }
            .overview-media img {
                height: 240px;
            }
            .overview-badge {
                bottom: 14px;
                left: 14px;
                font-size: 0.78rem;
                padding: 8px 12px;
            }
            .check-item {
                flex-direction: column;
                padding: 20px;
            }
            .trouble-card {
                flex-direction: column;
                padding: 24px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 0.92rem;
            }
            .faq-answer p {
                padding: 0 20px 18px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: stretch;
                padding: 0 18px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0f2a4a;
    --primary-light: #1e4d8c;
    --primary-dark: #081a30;
    --accent: #c9a55c;
    --accent-light: #dbb97a;
    --accent-dark: #a8843f;
    --bg: #f5f7fa;
    --text: #1c2b3a;
    --text-light: #5f7082;
    --border: #e5e9f0;
    --white: #fff;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 10px rgba(15,42,74,0.06);
    --shadow-md: 0 10px 30px rgba(15,42,74,0.10);
    --shadow-lg: 0 20px 50px rgba(15,42,74,0.16);
    --space: 90px;
    --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-light); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; margin: 0 0 16px; color: var(--primary); font-weight: 700; letter-spacing: .01em; }
p { margin-bottom: 16px; }
button, input, select, textarea { font-family: inherit; }
.grid-container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: .95rem; font-weight: 600; border: none; cursor: pointer; transition: all .3s ease; text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: var(--white); box-shadow: 0 6px 20px rgba(201,165,92,.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(201,165,92,.45); color: #fff; }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,.6); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--white); }
.btn-dark:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 200; background: rgba(15,42,74,.96); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.08); box-shadow: 0 4px 20px rgba(0,0,0,.15); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-size: 1.18rem; font-weight: 700; letter-spacing: .04em; white-space: nowrap; }
.site-logo i { color: var(--accent); font-size: 1.3rem; }
.site-logo:hover { color: #fff; }
.nav-menu { display: flex; align-items: center; gap: 6px; margin: 0; }
.nav-menu a { display: inline-block; padding: 10px 22px; border-radius: 40px; font-size: .95rem; font-weight: 500; color: rgba(255,255,255,.88); transition: all .25s ease; }
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav-menu a.active { background: linear-gradient(135deg, var(--accent), var(--accent-light)); color: var(--primary-dark); box-shadow: 0 4px 16px rgba(201,165,92,.35); }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 8px; }

/* Hero / Banner */
.page-banner { position: relative; padding: 100px 0 88px; background-size: cover; background-position: center 25%; }
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(8,26,48,.92) 20%, rgba(15,42,74,.72) 60%, rgba(15,42,74,.5)); }
.banner-content { position: relative; z-index: 2; text-align: center; }
.hero-breadcrumb { color: var(--accent-light); font-size: .95rem; font-weight: 500; letter-spacing: .06em; margin-bottom: 16px; display: inline-flex; align-items: center; gap: 10px; }
.hero-breadcrumb a { color: rgba(255,255,255,.85); }
.hero-breadcrumb a:hover { color: var(--accent-light); }
.hero-breadcrumb i { font-size: .75rem; color: rgba(255,255,255,.6); }
.banner-content h1 { color: #fff; font-size: clamp(1.7rem, 3.5vw, 2.8rem); max-width: 900px; margin: 0 auto 18px; line-height: 1.35; }
.banner-desc { color: rgba(255,255,255,.82); font-size: 1.05rem; max-width: 740px; margin: 0 auto; line-height: 1.8; }
.banner-badges { display: flex; justify-content: center; gap: 10px; margin-top: 24px; flex-wrap: wrap; }
.banner-badges .badge { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.2); color: #fff; font-size: .82rem; padding: 6px 16px; border-radius: 40px; letter-spacing: .03em; }

/* 主内容 */
.main { padding: var(--space) 0 20px; }
.main-layout { margin-top: -40px; }
.main-article { position: relative; z-index: 5; }
.article-card { background: var(--white); border-radius: var(--radius-lg); padding: 48px 52px; box-shadow: var(--shadow-md); }
.article-meta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 30px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-meta .badge { background: var(--primary); color: #fff; padding: 5px 16px; border-radius: 30px; font-size: .82rem; font-weight: 500; letter-spacing: .03em; }
.article-meta span { color: var(--text-light); font-size: .88rem; display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); }

.article-body { font-size: 1rem; line-height: 1.9; color: var(--text); }
.article-body h2 { font-size: 1.55rem; margin: 2.2rem 0 1rem; padding-left: 16px; border-left: 4px solid var(--accent); }
.article-body h3 { font-size: 1.3rem; margin: 1.8rem 0 .8rem; }
.article-body p { margin-bottom: 1.2rem; }
.article-body ul, .article-body ol { margin: 0 0 1.2rem 1.6rem; }
.article-body ul li { list-style: disc; margin-bottom: .5rem; }
.article-body ol li { list-style: decimal; margin-bottom: .5rem; }
.article-body blockquote { border-left: 4px solid var(--accent); padding: 16px 22px; background: #faf7f0; border-radius: 0 12px 12px 0; margin: 1.5rem 0; color: var(--text-light); font-size: .98rem; }
.article-body img { border-radius: 14px; margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-body a { text-decoration: underline; text-underline-offset: 3px; }
.not-found { text-align: center; padding: 60px 20px; }
.not-found h3 { font-size: 1.6rem; color: var(--primary); margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 28px; }

/* Sidebar */
.article-sidebar { position: relative; z-index: 5; }
.sidebar-card { background: var(--white); border-radius: var(--radius-md); padding: 28px 26px; box-shadow: var(--shadow-sm); margin-bottom: 24px; border: 1px solid rgba(229,233,240,.6); transition: all .3s; }
.sidebar-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.sidebar-card h3 { font-size: 1.12rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; padding-bottom: 12px; border-bottom: 2px solid var(--border); }
.sidebar-card h3 i { color: var(--accent); }
.sidebar-info { list-style: none; }
.sidebar-info li { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: .92rem; }
.sidebar-info li:last-child { border-bottom: none; }
.sidebar-info .label { color: var(--text-light); }
.sidebar-info .value { color: var(--text); font-weight: 500; text-align: right; }

.category-mini-card { display: flex; align-items: center; gap: 14px; padding: 16px; background: var(--bg); border-radius: 12px; margin-bottom: 14px; transition: all .3s; border: 1px solid transparent; }
.category-mini-card:hover { border-color: var(--accent); background: #fff; box-shadow: var(--shadow-sm); transform: translateX(4px); }
.category-mini-card .icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: #fff; flex-shrink: 0; }
.icon-login { background: linear-gradient(135deg, #2557a7, #1e4d8c); }
.icon-secure { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }
.category-mini-card .info { flex: 1; min-width: 0; }
.category-mini-card .info strong { display: block; font-size: .95rem; color: var(--text); }
.category-mini-card .info span { font-size: .82rem; color: var(--text-light); }
.category-mini-card .arrow { color: var(--text-light); font-size: .85rem; transition: all .3s; }
.category-mini-card:hover .arrow { color: var(--accent); transform: translateX(4px); }

.sidebar-tips { background: linear-gradient(145deg, var(--primary), var(--primary-light)); color: #fff; border: none; }
.sidebar-tips h3 { color: #fff; border-bottom-color: rgba(255,255,255,.2); }
.sidebar-tips h3 i { color: var(--accent-light); }
.sidebar-tips p { color: rgba(255,255,255,.85); font-size: .9rem; line-height: 1.8; }
.sidebar-tips .tip-icon { font-size: 2rem; color: var(--accent-light); margin-bottom: 10px; display: block; }

/* 精选推荐 */
.feature-section { background: var(--bg); padding: var(--space) 0; }
.section-head { text-align: center; margin-bottom: 50px; }
.section-head .subtitle { color: var(--accent); font-size: .95rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 10px; }
.section-head h2 { font-size: 2rem; margin-bottom: 14px; }
.section-head p { color: var(--text-light); max-width: 620px; margin: 0 auto; }
.feature-card { background: var(--white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all .35s ease; height: 100%; display: flex; flex-direction: column; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.feature-card .card-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.feature-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.feature-card:hover .card-img img { transform: scale(1.06); }
.feature-card .card-tag { position: absolute; top: 16px; left: 16px; background: rgba(15,42,74,.88); color: #fff; font-size: .78rem; padding: 5px 14px; border-radius: 30px; letter-spacing: .03em; }
.feature-card .card-body { padding: 24px 22px 26px; flex: 1; display: flex; flex-direction: column; }
.feature-card .card-body h3 { font-size: 1.08rem; line-height: 1.5; margin-bottom: 12px; transition: color .2s; }
.feature-card .card-body a { color: var(--text); }
.feature-card .card-body a:hover { color: var(--accent); }
.feature-card .card-body p { font-size: .88rem; color: var(--text-light); line-height: 1.7; flex: 1; }
.feature-card .card-more { font-size: .85rem; color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; }

/* 分类入口 */
.category-section { padding: var(--space) 0; background: var(--white); }
.category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 240px; display: flex; align-items: flex-end; background-size: cover; background-position: center; padding: 36px; transition: all .35s; }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card .overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,26,48,.85) 10%, rgba(8,26,48,.25) 70%); transition: all .3s; }
.category-card:hover .overlay { background: linear-gradient(to top, rgba(8,26,48,.9) 10%, rgba(8,26,48,.35) 70%); }
.category-card .content { position: relative; z-index: 2; }
.category-card h3 { color: #fff; font-size: 1.45rem; margin-bottom: 8px; }
.category-card p { color: rgba(255,255,255,.85); font-size: .9rem; margin-bottom: 18px; }

/* FAQ */
.faq-section { background: var(--bg); padding: var(--space) 0; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin-bottom: 16px; overflow: hidden; transition: box-shadow .3s; border: 1px solid rgba(229,233,240,.6); }
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; padding: 22px 26px; cursor: pointer; font-weight: 600; color: var(--text); font-size: .98rem; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); transition: transform .3s; font-size: .9rem; }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item .faq-content { padding: 0 26px 22px; color: var(--text-light); font-size: .93rem; line-height: 1.85; }

/* CTA */
.cta-section { position: relative; padding: 80px 0; background-size: cover; background-position: center; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(8,26,48,.94), rgba(15,42,74,.82)); }
.cta-content { position: relative; z-index: 2; text-align: center; }
.cta-content h2 { color: #fff; font-size: 1.8rem; margin-bottom: 12px; }
.cta-content p { color: rgba(255,255,255,.82); max-width: 600px; margin: 0 auto 30px; font-size: 1rem; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Footer */
.site-footer { background: var(--primary-dark); padding: 70px 0 0; color: rgba(255,255,255,.75); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 50px; }
.footer-logo { color: #fff; font-size: 1.2rem; font-weight: 700; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo i { color: var(--accent); }
.footer-desc { font-size: .9rem; line-height: 1.9; color: rgba(255,255,255,.65); max-width: 360px; }
.footer-links h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-links h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 28px; height: 2px; background: var(--accent); }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a { color: rgba(255,255,255,.65); font-size: .9rem; transition: all .2s; }
.footer-links ul li a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; text-align: center; font-size: .84rem; color: rgba(255,255,255,.5); }

/* 响应式 */
@media (max-width: 1024px) {
    .article-card { padding: 36px 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    :root { --space: 60px; }
    .header-inner { height: 64px; }
    .nav-toggle { display: block; }
    .site-nav { position: fixed; top: 64px; right: 12px; left: 12px; background: var(--primary); padding: 16px; transform: translateY(-12px); opacity: 0; visibility: hidden; transition: all .25s; box-shadow: var(--shadow-lg); border-radius: 0 0 16px 16px; z-index: 100; }
    .site-nav.nav-open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-menu { flex-direction: column; align-items: stretch; gap: 4px; }
    .nav-menu a { display: block; padding: 14px 18px; border-radius: 10px; text-align: center; }
    .page-banner { padding: 70px 0 70px; }
    .article-card { padding: 26px 20px; border-radius: 16px; }
    .main-layout { margin-top: 0; }
    .main { padding-top: 40px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .hero-breadcrumb { font-size: .85rem; }
    .banner-content h1 { font-size: 1.5rem; }
    .banner-desc { font-size: .92rem; }
    .feature-card .card-body h3 { font-size: 1rem; }
    .category-card { min-height: 180px; padding: 24px; }
}
@media (max-width: 520px) {
    .footer-grid { grid-template-columns: 1fr; }
    .article-meta { gap: 10px; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .section-head h2 { font-size: 1.5rem; }
}

/* roulang page: category2 */
:root {
    --primary: #1b2f5b;
    --primary-light: #2c4a82;
    --accent: #c9a04a;
    --accent-light: #ddb96a;
    --bg: #f4f6fa;
    --bg-deep: #e9edf4;
    --bg-dark: #14213d;
    --text: #1f2a3a;
    --text-light: #5c6b7f;
    --white: #ffffff;
    --border: #dde3ec;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 12px 32px rgba(20, 33, 61, 0.10);
    --shadow-sm: 0 4px 16px rgba(20, 33, 61, 0.07);
    --space: 96px;
    --space-md: 64px;
    --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6 { margin: 0 0 12px; line-height: 1.35; font-weight: 700; color: var(--text); }
p { margin: 0 0 16px; }
i, svg { display: inline-block; }
button { border: none; background: none; cursor: pointer; }

.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* ===== Header & Nav ===== */
.site-header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(20,33,61,0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 74px;
    gap: 28px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.brand-logo i {
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 17px;
    box-shadow: 0 4px 10px rgba(27,47,91,0.2);
}
.site-nav .nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}
.site-nav .nav-menu a {
    display: block;
    padding: 9px 22px;
    border-radius: 30px;
    font-weight: 500;
    color: var(--text-light);
    font-size: 15px;
    border: 1px solid transparent;
}
.site-nav .nav-menu a:hover {
    color: var(--primary);
    background: rgba(27,47,91,0.06);
}
.site-nav .nav-menu a.active {
    color: var(--primary);
    background: rgba(27,47,91,0.09);
    border-color: rgba(27,47,91,0.12);
    font-weight: 600;
}
.nav-toggle {
    display: none;
    font-size: 22px;
    color: var(--primary);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--white);
}

/* ===== Page Banner ===== */
.page-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 90px 0 80px;
    color: var(--white);
    isolation: isolate;
}
.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(20,33,61,0.92) 0%, rgba(20,33,61,0.72) 50%, rgba(27,47,91,0.45) 100%);
    z-index: -1;
}
.banner-tag {
    display: inline-block;
    background: var(--accent);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 24px;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.page-banner h1 {
    color: var(--white);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 14px;
    line-height: 1.25;
}
.page-banner p {
    font-size: 17px;
    color: rgba(255,255,255,0.88);
    max-width: 620px;
    margin-bottom: 0;
}

/* ===== Section common ===== */
.section-block {
    padding: var(--space) 0;
}
.section-block.alt-bg {
    background: var(--white);
}
.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 52px;
}
.section-head .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    background: rgba(201,160,74,0.12);
    padding: 5px 16px;
    border-radius: 24px;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 14px;
    color: var(--primary);
}
.section-head p {
    color: var(--text-light);
    font-size: 15px;
}

/* ===== Intro & Stats ===== */
.intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 56px;
    align-items: center;
}
.intro-media {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.intro-media img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}
.intro-media .media-badge {
    position: absolute;
    left: 20px;
    bottom: 20px;
    background: rgba(27,47,91,0.92);
    color: var(--white);
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(6px);
}
.intro-media .media-badge i { color: var(--accent); }
.intro-copy h2 { font-size: 30px; color: var(--primary); margin-bottom: 18px; }
.intro-copy p { color: var(--text-light); font-size: 15px; }
.intro-copy .intro-list {
    margin-top: 22px;
    display: grid;
    gap: 14px;
}
.intro-copy .intro-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text);
}
.intro-copy .intro-list li i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 15px;
}
.stats-row {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.stat-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.stat-card .stat-num {
    font-size: 34px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}
.stat-card .stat-num span { color: var(--accent); }
.stat-card .stat-label {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-light);
}

/* ===== Feature Cards ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 26px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at top right, rgba(201,160,74,0.12), transparent 70%);
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: rgba(27,47,91,0.2);
}
.feature-card .feature-icon {
    width: 54px;
    height: 54px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
    box-shadow: 0 6px 14px rgba(27,47,91,0.18);
}
.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary);
}
.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
}
.feature-card .feature-more {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.feature-card .feature-more:hover { gap: 10px; }

/* ===== Process Timeline ===== */
.process-section {
    background: var(--bg-dark);
    color: var(--white);
}
.process-section .section-head h2 { color: var(--white); }
.process-section .section-head p { color: rgba(255,255,255,0.7); }
.process-section .section-head .section-tag {
    background: rgba(201,160,74,0.18);
    color: var(--accent-light);
}
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.process-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 32px 24px;
    position: relative;
    transition: var(--transition);
}
.process-card:hover {
    background: rgba(255,255,255,0.09);
    transform: translateY(-4px);
    border-color: rgba(201,160,74,0.4);
}
.process-step {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    margin-bottom: 10px;
}
.process-card h3 {
    color: var(--white);
    font-size: 17px;
    margin-bottom: 10px;
}
.process-card p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 0;
}
.process-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(201,160,74,0.15);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 18px;
}

/* ===== News Cards ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.news-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}
.news-card .news-thumb {
    position: relative;
    overflow: hidden;
    height: 190px;
}
.news-card .news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-card .news-tag {
    position: absolute;
    left: 14px;
    top: 14px;
    background: var(--accent);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
}
.news-card .news-body {
    padding: 24px 22px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.news-card .news-body h3 {
    font-size: 17px;
    margin-bottom: 10px;
    line-height: 1.45;
}
.news-card .news-body p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    flex: 1;
}
.news-card .news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.news-card .news-meta i { margin-right: 5px; }

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: rgba(27,47,91,0.25); }
.faq-item .faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    color: var(--primary);
    background: var(--white);
    transition: var(--transition);
}
.faq-item .faq-q:hover { background: rgba(27,47,91,0.03); }
.faq-item .faq-q i {
    color: var(--accent);
    transition: var(--transition);
    font-size: 15px;
}
.faq-item .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    border-top: 1px solid transparent;
}
.faq-item .faq-a-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}
.faq-item.open { border-color: rgba(201,160,74,0.35); }
.faq-item.open .faq-q { border-bottom-color: transparent; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-item.open .faq-a { border-top-color: var(--border); }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(120deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 72px 0;
    text-align: center;
    color: var(--white);
}
.cta-section h2 {
    color: var(--white);
    font-size: 30px;
    margin-bottom: 14px;
}
.cta-section p {
    color: rgba(255,255,255,0.85);
    font-size: 15px;
    max-width: 560px;
    margin: 0 auto 30px;
}
.btn {
    display: inline-block;
    font-weight: 600;
    font-size: 15px;
    padding: 13px 32px;
    border-radius: 30px;
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
}
.btn-accent {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 6px 18px rgba(201,160,74,0.35);
}
.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(201,160,74,0.45);
}
.btn-outline-light {
    border-color: rgba(255,255,255,0.7);
    color: var(--white);
    margin-right: 12px;
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.14);
    border-color: var(--white);
}
.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 6px 18px rgba(27,47,91,0.3);
}
.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.75);
    padding: 64px 0 28px;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 0.8fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 14px;
}
.footer-logo i {
    color: var(--accent);
    font-size: 20px;
}
.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.65);
    max-width: 360px;
}
.footer-links h4 {
    color: var(--white);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 10px;
    position: relative;
}
.footer-links h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.footer-links ul {
    display: grid;
    gap: 10px;
}
.footer-links a {
    color: rgba(255,255,255,0.65);
    font-size: 14px;
}
.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-bottom {
    text-align: center;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255,255,255,0.45);
}
.footer-bottom p { margin: 0; }

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
    :root { --space: 72px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid { grid-template-columns: 1fr; gap: 36px; }
    .intro-media img { height: 260px; }
}

@media screen and (max-width: 768px) {
    .site-nav {
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
        display: none;
        padding: 16px 24px 20px;
    }
    .site-nav.open { display: block; }
    .site-nav .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }
    .site-nav .nav-menu a {
        text-align: left;
        padding: 12px 16px;
        border-radius: 10px;
    }
    .nav-toggle { display: block; }
    .page-banner { padding: 60px 0 48px; }
    .page-banner h1 { font-size: 30px; }
    .stats-row { gap: 14px; }
    .stat-card { padding: 20px 14px; }
    .stat-card .stat-num { font-size: 26px; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media screen and (max-width: 520px) {
    :root { --space: 56px; --space-md: 40px; }
    .grid-container { padding-left: 18px; padding-right: 18px; }
    .brand-logo { font-size: 17px; }
    .brand-logo i { width: 32px; height: 32px; font-size: 14px; }
    .page-banner h1 { font-size: 24px; }
    .page-banner p { font-size: 15px; }
    .section-head h2 { font-size: 25px; }
    .feature-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr; }
    .intro-media img { height: 210px; }
    .cta-section h2 { font-size: 24px; }
    .cta-section .btn { display: block; width: 100%; margin: 10px 0 0; }
    .btn-outline-light { margin-right: 0; }
}