/* roulang page: index */
:root {
            --primary: #1B4A7A;
            --primary-dark: #143A60;
            --primary-light: #2E6FA3;
            --gold: #C9A063;
            --gold-light: #D9B57A;
            --bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --text: #2A3544;
            --text-light: #6B7A8F;
            --border: #E4E9F0;
            --dark-bg: #0E2A44;
            --success: #2E8B6D;
            --warning: #C07F2E;
            --error: #B84A4A;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 20px rgba(27, 74, 122, 0.08);
            --shadow-lg: 0 12px 32px rgba(27, 74, 122, 0.14);
            --transition: 0.3s ease;
            --container: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: all var(--transition);
            border: 1.5px solid transparent;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 74, 122, 0.25);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(27, 74, 122, 0.06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-outline:active {
            background: rgba(27, 74, 122, 0.12);
        }
        .btn-gold {
            background: var(--gold);
            color: var(--dark-bg);
            border-color: var(--gold);
        }
        .btn-gold:hover {
            background: var(--gold-light);
            border-color: var(--gold-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(201, 160, 99, 0.3);
            color: var(--dark-bg);
        }
        .btn-gold:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        /* ===== 徽章/标签 ===== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(27, 74, 122, 0.08);
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-gold {
            background: rgba(201, 160, 99, 0.15);
            color: #8A6D3B;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 20px 20px 0;
            pointer-events: none;
        }
        .nav-capsule {
            max-width: 1160px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(27, 74, 122, 0.08);
            border-radius: 999px;
            padding: 10px 20px;
            box-shadow: 0 8px 32px rgba(14, 42, 68, 0.12);
            pointer-events: auto;
            transition: box-shadow var(--transition);
        }
        .logo {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .logo span {
            font-size: 13px;
            font-weight: 500;
            color: var(--gold);
            letter-spacing: 2px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu a {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(27, 74, 122, 0.05);
        }
        .nav-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-menu a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-cta {
            padding: 8px 24px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s;
        }
        .nav-toggle:hover span {
            background: var(--gold);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: clamp(480px, 80vh, 720px);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #fff;
            background: linear-gradient(135deg, rgba(14, 42, 68, 0.92), rgba(27, 74, 122, 0.75)),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 24px 60px;
            max-width: 850px;
            margin: 0 auto;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 20px;
            border: 1px solid rgba(201, 160, 99, 0.6);
            border-radius: 999px;
            color: var(--gold);
            font-size: 14px;
            letter-spacing: 3px;
            margin-bottom: 28px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 2px;
            margin-bottom: 20px;
            color: #fff;
        }
        .hero-title span {
            color: var(--gold);
            margin-left: 4px;
        }
        .hero-sub {
            font-size: clamp(16px, 2vw, 20px);
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            max-width: 640px;
            margin: 0 auto 36px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .scroll-indicator {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 48px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 999px;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding-top: 8px;
            z-index: 3;
            transition: border-color 0.3s;
        }
        .scroll-indicator::before {
            content: '';
            width: 4px;
            height: 8px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 4px;
            animation: scrollDot 1.6s infinite;
        }
        @keyframes scrollDot {
            0% {
                transform: translateY(0);
                opacity: 1;
            }
            70% {
                transform: translateY(14px);
                opacity: 0;
            }
            100% {
                transform: translateY(0);
                opacity: 1;
            }
        }
        .scroll-indicator:hover {
            border-color: var(--gold);
        }

        /* ===== 信任指标带 ===== */
        .trust-section {
            position: relative;
            z-index: 5;
            margin-top: -60px;
            padding: 0 24px;
        }
        .trust-grid {
            max-width: 1100px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: 20px;
            box-shadow: 0 12px 40px rgba(14, 42, 68, 0.1);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            padding: 32px 24px;
            gap: 16px;
        }
        .trust-item {
            text-align: center;
            padding: 12px 8px;
            position: relative;
        }
        .trust-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: var(--border);
        }
        .trust-num {
            font-family: Georgia, "Times New Roman", serif;
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            display: inline-block;
        }
        .trust-suffix {
            font-size: 20px;
            font-weight: 600;
            color: var(--gold);
            margin-left: 2px;
        }
        .trust-label {
            display: block;
            font-size: 14px;
            color: var(--text-light);
            margin-top: 6px;
            letter-spacing: 1px;
        }

        /* ===== 区块标题 ===== */
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--gold);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            position: relative;
            display: inline-block;
            padding-bottom: 14px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }
        .section-sub {
            color: var(--text-light);
            font-size: 15px;
            margin-top: 14px;
            line-height: 1.6;
        }

        /* ===== 横滑片库 ===== */
        .slider-section {
            padding: 80px 0 60px;
        }
        .slider-wrap {
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 20px;
            margin: 0 -24px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .slider-wrap::-webkit-scrollbar {
            display: none;
        }
        .slider-track {
            display: flex;
            gap: 24px;
            min-width: max-content;
            padding-right: 40px;
        }
        .slider-card {
            width: 280px;
            flex-shrink: 0;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid rgba(228, 233, 240, 0.8);
        }
        .slider-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .slider-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e9edf2;
        }
        .slider-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .slider-card:hover .slider-card-img img {
            transform: scale(1.04);
        }
        .slider-card-body {
            padding: 16px 18px 20px;
        }
        .slider-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin: 10px 0 4px;
        }
        .slider-card-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .slider-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            background: #fff;
            border-radius: 50%;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 2;
            transition: all 0.3s;
        }
        .slider-arrow:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 热播推荐 ===== */
        .featured-section {
            background: #fff;
            padding: 80px 0;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid rgba(228, 233, 240, 0.8);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .featured-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            background: #e9edf2;
        }
        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-card:hover .featured-img img {
            transform: scale(1.03);
        }
        .featured-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(14, 42, 68, 0.78);
            color: rgba(255, 255, 255, 0.9);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            backdrop-filter: blur(4px);
        }
        .featured-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .featured-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .featured-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-light);
        }
        .featured-meta a {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
        }
        .featured-meta a:hover {
            color: var(--gold);
        }

        /* ===== 片单分区 ===== */
        .catalog-section {
            background: #F0F4F8;
            padding: 80px 0;
        }
        .catalog-wrap {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 32px;
            background: #fff;
            border-radius: 20px;
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .catalog-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            border-right: 1px solid var(--border);
            padding-right: 24px;
        }
        .catalog-btn {
            padding: 14px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            transition: all var(--transition);
            background: transparent;
            border: 1px solid transparent;
            line-height: 1.4;
        }
        .catalog-btn:hover {
            background: rgba(27, 74, 122, 0.05);
            color: var(--primary);
        }
        .catalog-btn.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(27, 74, 122, 0.2);
        }
        .catalog-btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }
        .catalog-display {
            padding: 8px 0 8px 8px;
        }
        .catalog-panel {
            display: none;
            animation: fadeIn 0.3s ease;
        }
        .catalog-panel.show {
            display: block;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .catalog-panel h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .catalog-panel p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 22px;
            max-width: 560px;
        }
        .catalog-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        /* ===== 最新信息 / CMS ===== */
        .news-section {
            padding: 80px 0;
            background: #fff;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            align-items: stretch;
        }
        .news-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(27, 74, 122, 0.15);
            transform: translateY(-2px);
        }
        .news-thumb {
            width: 120px;
            height: 84px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: #e9edf2;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
        }
        .news-cate {
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            background: rgba(201, 160, 99, 0.12);
            padding: 2px 10px;
            border-radius: 999px;
        }
        .news-time {
            font-size: 13px;
            color: var(--text-light);
        }
        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 4px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-title a {
            color: inherit;
        }
        .news-title a:hover {
            color: var(--gold);
        }
        .news-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 6px;
            align-self: flex-start;
        }
        .news-link:hover {
            color: var(--gold);
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 60px 30px;
            border: 2px dashed var(--border);
            border-radius: var(--radius-lg);
            background: #FAFBFC;
        }
        .empty-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(27, 74, 122, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .empty-state p {
            color: var(--text-light);
            font-size: 15px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #F0F4F8;
            padding: 80px 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 6px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item summary {
            padding: 20px 40px 20px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            position: relative;
            transition: color 0.3s;
            display: block;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: #143955;
        }
        .faq-item summary::after {
            content: '+';
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            color: var(--gold);
            font-weight: 300;
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary::after {
            transform: translateY(-50%) rotate(45deg);
        }
        .faq-item summary:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .faq-item p {
            padding: 0 24px 20px 4px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0 80px;
            background: #fff;
        }
        .cta-banner {
            max-width: 900px;
            margin: 0 auto;
            background: linear-gradient(135deg, var(--dark-bg), var(--primary));
            border-radius: 24px;
            padding: 60px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(201, 160, 99, 0.2);
            box-shadow: 0 20px 50px rgba(14, 42, 68, 0.25);
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
        }
        .cta-title {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-sub {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 12px 20px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            transition: all 0.3s;
            min-width: 0;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input:focus {
            border-color: var(--gold);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 4px rgba(201, 160, 99, 0.15);
        }
        .cta-form input:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 1px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            border-top: 3px solid var(--gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: baseline;
            gap: 6px;
        }
        .footer-logo span {
            font-size: 14px;
            font-weight: 500;
            color: var(--gold);
            letter-spacing: 2px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.3s;
        }
        .footer-col a:hover {
            color: var(--gold);
        }
        .footer-col li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .catalog-wrap {
                grid-template-columns: 240px 1fr;
                padding: 24px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .site-header {
                padding: 12px 12px 0;
            }
            .nav-capsule {
                padding: 8px 16px;
                border-radius: 18px;
                flex-wrap: wrap;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: 16px;
                box-shadow: 0 16px 40px rgba(14, 42, 68, 0.16);
                padding: 16px;
                flex-direction: column;
                gap: 8px;
                border: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 20px;
                border-radius: 12px;
                width: 100%;
                text-align: center;
            }
            .nav-menu a.active {
                background: var(--primary);
                color: #fff;
            }
            .hero {
                min-height: 520px;
            }
            .hero-content {
                padding: 80px 16px 48px;
            }
            .hero-actions {
                gap: 12px;
            }
            .hero-actions .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
            .trust-section {
                margin-top: -40px;
                padding: 0 16px;
            }
            .trust-grid {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
                gap: 20px;
            }
            .trust-item:nth-child(2)::after {
                display: none;
            }
            .trust-num {
                font-size: 34px;
            }
            .trust-suffix {
                font-size: 16px;
            }
            .slider-card {
                width: 78vw;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .catalog-wrap {
                grid-template-columns: 1fr;
                padding: 20px;
                gap: 20px;
            }
            .catalog-nav {
                flex-direction: row;
                flex-wrap: wrap;
                border-right: none;
                padding-right: 0;
                gap: 8px;
            }
            .catalog-btn {
                padding: 10px 14px;
                font-size: 13px;
                border-radius: 999px;
                text-align: center;
                flex: 1;
                min-width: 120px;
            }
            .news-item {
                flex-direction: column;
                padding: 14px;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
            }
            .news-thumb img {
                object-fit: cover;
            }
            .news-title {
                white-space: normal;
                -webkit-line-clamp: 2;
                display: -webkit-box;
                -webkit-box-orient: vertical;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-form {
                flex-direction: column;
                gap: 12px;
            }
            .cta-form input {
                border-radius: 12px;
                padding: 12px 16px;
            }
            .cta-form .btn {
                width: 100%;
                border-radius: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .trust-grid {
                gap: 16px;
                padding: 20px 12px;
            }
            .trust-num {
                font-size: 30px;
            }
            .trust-label {
                font-size: 13px;
            }
            .slider-wrap {
                margin: 0 -16px;
                padding-left: 16px;
            }
            .catalog-btn {
                min-width: 100px;
                font-size: 12px;
            }
            .faq-item summary {
                font-size: 15px;
                padding-right: 36px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1B4A7A;
            --primary-dark: #143A60;
            --secondary: #2E6FA3;
            --accent: #C9A063;
            --accent-light: #D9B87A;
            --bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --text: #2A3544;
            --text-light: #6B7A8F;
            --border: #E4E9F0;
            --deep: #0E2A44;
            --success: #2E8B6D;
            --warning: #C07F2E;
            --error: #B84A4A;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 20px rgba(27, 74, 122, 0.08);
            --shadow-lg: 0 12px 32px rgba(27, 74, 122, 0.14);
            --transition: 0.3s ease;
            --max-width: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮体系 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(27, 74, 122, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(27, 74, 122, 0.05);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-outline:active {
            background: rgba(27, 74, 122, 0.08);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--deep);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 160, 99, 0.35);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 16px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
        }
        .nav-capsule {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(27, 74, 122, 0.08);
            border-radius: 999px;
            padding: 10px 24px;
            box-shadow: 0 8px 32px rgba(14, 42, 68, 0.12);
        }
        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }
        .logo span {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.08em;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu li a {
            position: relative;
            display: block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: color var(--transition), background var(--transition);
        }
        .nav-menu li a::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition);
        }
        .nav-menu li a:hover {
            color: var(--primary);
        }
        .nav-menu li a:hover::after {
            transform: scaleX(1);
        }
        .nav-menu li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 74, 122, 0.25);
        }
        .nav-menu li a.active::after {
            display: none;
        }
        .nav-cta {
            padding: 10px 24px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 0;
            border-radius: 50%;
            background: rgba(27, 74, 122, 0.08);
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 分类 Hero ===== */
        .cat-hero {
            background: linear-gradient(135deg, #F0F4F8 0%, #E8EEF5 100%);
            border-bottom: 1px solid var(--border);
            padding: 150px 0 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            top: 20px;
            right: 30px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(201, 160, 99, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cat-hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(46, 111, 163, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .cat-hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .cat-hero .hero-line {
            width: 48px;
            height: 2px;
            background: var(--accent);
            margin: 20px auto;
            border-radius: 2px;
        }
        .cat-hero .hero-desc {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cat-hero .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 通用版块 ===== */
        .section {
            padding: 80px 0;
        }
        .section + .section {
            border-top: 1px solid var(--border);
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.1em;
            margin-bottom: 8px;
        }
        .section-head h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 600;
            color: var(--primary);
            line-height: 1.3;
        }
        .section-head .gold-line {
            width: 32px;
            height: 2px;
            background: var(--accent);
            margin: 16px auto 0;
            border-radius: 2px;
        }
        .section-head .sub-text {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 14px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 内容卡片网格（分类页核心模块）===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #E8EEF5;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .content-card:hover .card-cover img {
            transform: scale(1.03);
        }
        .card-cover .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            letter-spacing: 0.02em;
        }
        .badge.gold {
            background: var(--accent);
            color: var(--deep);
        }
        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .card-meta a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--secondary);
            font-weight: 500;
            transition: color var(--transition);
        }
        .card-meta a:hover {
            color: var(--primary);
        }
        .card-meta i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .card-meta a:hover i {
            transform: translateX(3px);
        }

        /* ===== 价值卖点 ===== */
        .section-values {
            background: #fff;
        }
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .value-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            transition: all var(--transition);
        }
        .value-card:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
            border-color: rgba(46, 111, 163, 0.3);
        }
        .value-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            background: linear-gradient(135deg, rgba(27, 74, 122, 0.1), rgba(46, 111, 163, 0.08));
            color: var(--primary);
        }
        .value-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .value-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 适用场景 ===== */
        .section-scenes {
            background: var(--bg);
        }
        .scene-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .scene-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 4 / 3;
            background: #E8EEF5;
            position: relative;
        }
        .scene-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .scene-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border-left: 3px solid var(--accent);
        }
        .scene-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateX(4px);
        }
        .scene-num {
            font-family: Georgia, serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            flex-shrink: 0;
            min-width: 36px;
        }
        .scene-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .scene-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 流程步骤 ===== */
        .section-steps {
            background: var(--deep);
            position: relative;
            overflow: hidden;
        }
        .section-steps::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(201, 160, 99, 0.5), transparent);
        }
        .section-steps .section-head h2 {
            color: #fff;
        }
        .section-steps .section-head .sub-text {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-steps .section-head .gold-line {
            background: var(--accent);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .step-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .step-number {
            font-family: Georgia, serif;
            font-size: 42px;
            font-weight: 700;
            color: rgba(201, 160, 99, 0.8);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }
        .step-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin: 0;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--deep);
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
        }
        .steps-grid .step-card:last-child .step-arrow {
            display: none;
        }

        /* ===== FAQ ===== */
        .section-faq {
            background: var(--bg);
        }
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        details.faq-item {
            border-radius: 0;
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 8px;
            cursor: pointer;
            list-style: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--secondary);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 14px;
            transition: all 0.3s ease;
            background: transparent;
        }
        .faq-item[open] summary .faq-icon {
            background: var(--accent);
            color: var(--deep);
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 16px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            background: #F8FAFC;
            border-radius: 8px;
            margin: 0 8px 16px;
            padding: 16px 20px;
            box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        /* ===== CTA 横幅 ===== */
        .section-cta {
            padding: 0;
        }
        .cta-banner {
            background: var(--deep);
            border-radius: 20px;
            position: relative;
            overflow: hidden;
            padding: 56px 48px;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            top: 40px;
            right: 20px;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(201, 160, 99, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--deep);
            color: rgba(255, 255, 255, 0.8);
            margin-top: 80px;
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(201, 160, 99, 0.5);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding: 60px 0 40px;
        }
        .footer-logo {
            display: flex;
            flex-direction: column;
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .footer-logo span {
            font-size: 14px;
            color: var(--accent);
            letter-spacing: 0.06em;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 16px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .steps-grid {
                gap: 16px;
            }
            .step-card {
                padding: 24px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .nav-capsule {
                padding: 8px 16px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                border-radius: 20px;
                padding: 16px;
                box-shadow: 0 8px 32px rgba(14, 42, 68, 0.12);
                border: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                padding: 14px 16px;
                text-align: center;
                border-radius: 12px;
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .cat-hero {
                padding: 130px 0 48px;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .scene-wrap {
                grid-template-columns: 1fr;
            }
            .scene-media {
                order: 1;
                aspect-ratio: 16 / 10;
            }
            .scene-list {
                order: 2;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .step-arrow {
                display: none;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                padding: 48px 0 32px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cat-hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-lg {
                width: 100%;
                max-width: 280px;
            }
            .scene-item {
                padding: 16px;
            }
            .scene-num {
                font-size: 24px;
                min-width: 30px;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root {
  --primary: #1B4A7A;
  --primary-dark: #143A60;
  --primary-light: #2E6FA3;
  --accent: #C9A063;
  --accent-light: #D9B87E;
  --bg: #F5F7FA;
  --card-bg: #FFFFFF;
  --text: #2A3544;
  --text-muted: #6B7A8F;
  --border: #E4E9F0;
  --dark-bg: #0E2A44;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(27, 74, 122, .08);
  --shadow-lg: 0 12px 32px rgba(27, 74, 122, .14);
  --transition: .3s ease;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 20px 24px; background: transparent; }
.nav-capsule {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(27, 74, 122, .08);
  box-shadow: 0 8px 32px rgba(14, 42, 68, .12);
  padding: 12px 24px;
  border-radius: 999px;
}
.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}
.logo span {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .5px;
}
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--primary);
  position: relative;
}
.nav-menu a:hover { background: rgba(27, 74, 122, .06); }
.nav-menu a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27, 74, 122, .25);
}
.nav-cta { flex-shrink: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all .3s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 74, 122, .25);
}
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(27, 74, 122, .06); }
.btn-gold { background: var(--accent); color: #1B2440; border-color: var(--accent); }
.btn-gold:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 160, 99, .35);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--primary); border-radius: 2px; }

.page-hero {
  background: linear-gradient(135deg, #EFF3F8 0%, #F7F9FC 60%);
  padding: 132px 0 48px;
  border-bottom: 1px solid var(--border);
}
.page-hero .container { max-width: 900px; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--primary-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #B8C4D0; }
.breadcrumb .current {
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}
.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
}
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(201, 160, 99, .16);
  color: #9A7A45;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .4px;
}
.meta-item { font-size: 14px; color: var(--text-muted); }

.article-section { padding: 56px 0 72px; }
.article-layout { max-width: 820px; }
.article-body {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow);
}
.article-body p { margin-bottom: 22px; font-size: 16px; line-height: 1.9; color: var(--text); }
.article-body h2,
.article-body h3,
.article-body h4 { color: var(--primary); font-weight: 600; margin: 32px 0 14px; line-height: 1.4; }
.article-body h2 { font-size: 24px; }
.article-body h3 { font-size: 19px; }
.article-body ul,
.article-body ol { margin: 0 0 22px 20px; }
.article-body li { margin-bottom: 8px; font-size: 16px; line-height: 1.8; }
.article-body img { border-radius: var(--radius); margin: 24px 0; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: #FBF7EF;
  padding: 18px 22px;
  margin: 22px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
  font-size: 15px;
}
.article-body a { color: var(--primary-light); border-bottom: 1px solid rgba(46, 111, 163, .3); }
.article-body a:hover { color: var(--primary); border-color: var(--primary); }

.tag-list { display: flex; flex-wrap: wrap; gap: 12px; margin: 36px 0 0; }
.tag-list a {
  padding: 8px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--primary-light);
}
.tag-list a:hover { border-color: var(--primary-light); background: rgba(46, 111, 163, .06); }

.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 36px; }
.prev-next a {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: all .3s ease;
}
.prev-next a:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: rgba(46, 111, 163, .35);
}
.prev-next .label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.prev-next strong { font-size: 15px; color: var(--primary); line-height: 1.5; display: block; }
.prev-next .next { text-align: right; }

.empty-state {
  background: #fff;
  border: 1px dashed #C6D0DC;
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  color: var(--text-muted);
}
.empty-state .icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: #9FB0C0;
}
.empty-state p { margin-bottom: 20px; font-size: 16px; }
.empty-state a { color: var(--primary-light); font-weight: 600; }

.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; }
.section-head h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--primary);
  position: relative;
  padding-bottom: 12px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head .more { color: var(--primary-light); font-size: 14px; font-weight: 600; }
.section-head .more:hover { color: var(--primary); }

.related-section { padding: 72px 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.content-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.content-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.content-card:hover .card-media img { transform: scale(1.03); }
.card-badge {
  position: absolute;
  left: 14px;
  top: 14px;
  background: rgba(255, 255, 255, .92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}
.card-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 18px; font-weight: 600; color: var(--primary); line-height: 1.5; margin-bottom: 10px; }
.card-body h3 a:hover { color: var(--primary-light); }
.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #8A98A8;
  margin-top: auto;
}

.faq-section { padding: 72px 0; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 4px 0; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  padding: 24px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: var(--accent);
  transition: transform .3s ease;
  flex-shrink: 0;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 32px 24px 4px; font-size: 15px; color: var(--text-muted); line-height: 1.8; }

.cta-section { padding: 72px 0; }
.cta-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 64px 56px;
  text-align: center;
  background: linear-gradient(135deg, rgba(14, 42, 68, .94), rgba(27, 74, 122, .85)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  color: #fff;
  border-bottom: 4px solid var(--accent);
}
.cta-banner h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 700; margin-bottom: 14px; color: #fff; }
.cta-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-banner .btn { margin: 0 6px; }

.site-footer { background: var(--dark-bg); color: #A9B9CA; padding: 64px 0 0; border-top: 1px solid rgba(201, 160, 99, .25); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .footer-logo { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-brand .footer-logo span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  margin-left: 6px;
  letter-spacing: .5px;
}
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 20px;
  height: 2px;
  background: var(--accent);
}
.footer-col ul li { margin-bottom: 10px; font-size: 14px; }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #7C8EA0;
}

@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .site-header { padding: 12px 16px; }
  .nav-capsule { flex-wrap: wrap; border-radius: 20px; padding: 12px 16px; }
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-top: 12px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { width: 100%; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { display: none; }
  .page-hero { padding: 110px 0 36px; }
  .article-body { padding: 28px 20px; }
  .prev-next { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-banner { padding: 44px 24px; }
  .section-head h2 { font-size: 24px; }
}
@media (max-width: 520px) {
  .post-meta { gap: 10px; }
  .article-body h2 { font-size: 21px; }
}