/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0a1628;
            --primary-2: #12233b;
            --accent: #c8a24b;
            --accent-2: #e5c878;
            --bg: #f4f6fa;
            --bg-dark: #0e1a2b;
            --text: #1a2332;
            --muted: #6b7a8f;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 12px 40px rgba(10, 22, 40, 0.14);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        /* ============ 基础重置 ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ============ 容器 ============ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ 动画 ============ */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(200, 162, 75, 0.4);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(200, 162, 75, 0);
            }
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(10, 22, 40, 0.04);
        }

        .navbar-custom {
            padding: 14px 0;
            min-height: 72px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            font-weight: 700;
            font-size: 18px;
            color: var(--primary) !important;
            white-space: nowrap;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: var(--accent-2);
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(10, 22, 40, 0.2);
            flex-shrink: 0;
        }

        .brand-text {
            letter-spacing: 0.5px;
            font-size: 17px;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            color: var(--primary);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(200, 162, 75, 0.3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(10,22,40,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .navbar-nav {
            gap: 2px;
        }

        .nav-link-custom {
            font-weight: 500;
            font-size: 15px;
            color: var(--text);
            padding: 8px 18px !important;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
        }

        .nav-link-custom:hover {
            color: var(--accent);
            background: rgba(200, 162, 75, 0.08);
        }

        .nav-link-custom.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-link-custom.active::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 180px;
            padding: 8px 34px 8px 14px;
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 13px;
            background: var(--bg);
            transition: var(--transition);
        }

        .nav-search input:focus {
            border-color: var(--accent);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(200, 162, 75, 0.15);
            width: 210px;
        }

        .nav-search i {
            position: absolute;
            right: 12px;
            color: var(--muted);
            font-size: 13px;
            pointer-events: none;
        }

        .btn-nav-login {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            padding: 8px 18px;
            border-radius: 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .btn-nav-login:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200, 162, 75, 0.05);
        }

        .btn-nav-primary {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            padding: 8px 22px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            box-shadow: 0 4px 12px rgba(10, 22, 40, 0.18);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(10, 22, 40, 0.25);
            color: var(--accent-2);
        }

        /* ============ 按钮 ============ */
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent-2), var(--accent));
            box-shadow: 0 6px 18px rgba(200, 162, 75, 0.35);
            transition: var(--transition);
            border: none;
        }

        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(200, 162, 75, 0.45);
            color: var(--primary);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 15px;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: var(--transition);
            background: transparent;
        }

        .btn-outline-light:hover {
            border-color: var(--accent-2);
            color: var(--accent-2);
            background: rgba(200, 162, 75, 0.1);
        }

        /* ============ Hero 首屏 ============ */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center/cover;
            min-height: 92vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 22, 40, 0.88) 0%, rgba(10, 22, 40, 0.7) 50%, rgba(10, 22, 40, 0.35) 100%);
        }

        .hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(transparent, var(--bg));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 100px 0;
            max-width: 680px;
            animation: fadeUp 0.8s ease both;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-2);
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero h1 span {
            color: var(--accent-2);
        }

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-points {
            display: flex;
            gap: 30px;
            margin-top: 50px;
            flex-wrap: wrap;
        }

        .hero-point {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-point i {
            color: var(--accent-2);
            font-size: 16px;
        }

        /* ============ 数据统计 ============ */
        .stats-section {
            position: relative;
            padding: 90px 0;
            background: url('/assets/images/backpic/back-2.png') no-repeat center center/cover;
            background-attachment: fixed;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(10, 22, 40, 0.85);
        }

        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .stat-card {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
        }

        .stat-num {
            font-size: 46px;
            font-weight: 800;
            color: var(--accent-2);
            line-height: 1.2;
            font-family: "Segoe UI", "PingFang SC", sans-serif;
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

        /* ============ 核心功能 ============ */
        .section {
            padding: 90px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 620px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(200, 162, 75, 0.1);
            border-radius: 20px;
            padding: 5px 16px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.7;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

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

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 162, 75, 0.3);
        }

        .feature-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }

        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .feature-card:hover .feature-img img {
            transform: scale(1.08);
        }

        .feature-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 22, 40, 0.3), transparent);
        }

        .feature-body {
            padding: 26px;
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: var(--accent-2);
            font-size: 18px;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(10, 22, 40, 0.2);
        }

        .feature-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .feature-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ============ 分类入口 ============ */
        .category-section {
            background: var(--bg);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            display: block;
            min-height: 320px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

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

        .category-card:hover img {
            transform: scale(1.06);
        }

        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 22, 40, 0.85) 0%, rgba(10, 22, 40, 0.3) 60%, rgba(10, 22, 40, 0.1) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 30px;
        }

        .category-card-overlay h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card-overlay p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-2);
            font-size: 14px;
            font-weight: 600;
        }

        .category-link i {
            transition: transform 0.3s;
        }

        .category-card:hover .category-link i {
            transform: translateX(5px);
        }

        /* ============ 最新资讯 ============ */
        .news-section {
            background: var(--white);
        }

        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            display: flex;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: var(--transition);
            gap: 18px;
        }

        .news-card:hover {
            border-color: rgba(200, 162, 75, 0.4);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

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

        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .news-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(200, 162, 75, 0.1);
            border-radius: 16px;
            padding: 3px 12px;
        }

        .news-date {
            font-size: 13px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }

        .news-more {
            text-align: center;
            margin-top: 45px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            color: var(--muted);
            font-size: 16px;
            padding: 40px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ============ 平台流程 ============ */
        .process-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(200, 162, 75, 0.08);
        }

        .process-section .section-title {
            color: #fff;
        }

        .process-section .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 2;
        }

        .process-step {
            text-align: center;
            padding: 40px 24px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent-2), var(--accent));
            color: var(--primary);
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 6px 16px rgba(200, 162, 75, 0.3);
            margin-bottom: 20px;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }

        /* ============ 排名积分 ============ */
        .rank-section {
            background: url('/assets/images/backpic/back-3.png') no-repeat center center/cover;
            padding: 90px 0;
            position: relative;
        }

        .rank-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(244, 246, 250, 0.92);
        }

        .rank-wrapper {
            position: relative;
            z-index: 2;
        }

        .rank-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 22px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .rank-item:hover {
            transform: translateX(5px);
            border-color: rgba(200, 162, 75, 0.4);
        }

        .rank-no {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            width: 40px;
            text-align: center;
            font-family: "Segoe UI", sans-serif;
        }

        .rank-info {
            flex: 1;
        }

        .rank-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
        }

        .rank-info p {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
        }

        .rank-score {
            text-align: right;
            min-width: 70px;
        }

        .rank-score .score {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
        }

        .rank-score .label {
            font-size: 12px;
            color: var(--muted);
        }

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

        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
            background: var(--bg);
        }

        .faq-item:hover {
            border-color: rgba(200, 162, 75, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
        }

        .faq-item.active {
            background: var(--white);
            box-shadow: var(--shadow);
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(200, 162, 75, 0.08);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 34px;
            line-height: 1.7;
        }

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

        /* ============ 页脚 ============ */
        .site-footer {
            background: #0c1626;
            padding: 70px 0 30px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, var(--accent-2), var(--accent));
            color: var(--primary);
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 280px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--accent-2);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 14px;
            align-items: flex-start;
        }

        .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 13px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--accent-2);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .hero h1 {
                font-size: 42px;
            }

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

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

            .nav-search input {
                width: 150px;
            }

            .brand-text {
                font-size: 15px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }

            .hero {
                min-height: auto;
            }

            .hero-content {
                padding: 80px 0;
            }

            .hero h1 {
                font-size: 34px;
            }

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

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

            .stat-num {
                font-size: 34px;
            }

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

            .category-card {
                min-height: 240px;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

            .rank-list {
                grid-template-columns: 1fr;
            }

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

            .section-title {
                font-size: 30px;
            }

            .cta-content h2 {
                font-size: 30px;
            }

            .nav-actions {
                flex-wrap: wrap;
                margin-top: 10px;
            }

            .nav-search {
                width: 100%;
            }

            .nav-search input {
                width: 100%;
            }

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

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-points {
                gap: 16px;
            }

            .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                border-radius: 12px;
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-lg);
            }

            .navbar-nav {
                margin-bottom: 14px;
            }

            .nav-link-custom.active::after {
                bottom: auto;
                top: 8px;
                left: 0;
                height: 20px;
                width: 3px;
            }
        }

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

            .hero h1 {
                font-size: 28px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .btn-accent,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
            }

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

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

            .section-title {
                font-size: 26px;
            }

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

            .news-card {
                flex-direction: column;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .brand-text {
                font-size: 13px;
                max-width: 160px;
                white-space: normal;
                line-height: 1.3;
            }

            .navbar-brand {
                gap: 6px;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .rank-score {
                min-width: 60px;
                text-align: left;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0b1d3a;
            --primary-light: #16324f;
            --primary-deep: #061020;
            --accent: #f0a63c;
            --accent-hover: #dd8f24;
            --accent-soft: rgba(240, 166, 60, 0.14);
            --bg-page: #f4f7fb;
            --bg-card: #ffffff;
            --bg-deep: #081426;
            --text-heading: #16283a;
            --text-body: #44566c;
            --text-muted: #7d8b9c;
            --border-light: #e6edf4;
            --border-mid: #d5dfe9;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 9px;
            --shadow-sm: 0 4px 14px rgba(11, 29, 58, 0.05);
            --shadow-md: 0 12px 32px rgba(11, 29, 58, 0.08);
            --shadow-lg: 0 18px 48px rgba(11, 29, 58, 0.14);
            --transition: all 0.3s ease;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-heading);
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 12px;
        }

        p {
            margin: 0 0 16px;
        }

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

        a:hover {
            color: var(--accent-hover);
            text-decoration: none;
        }

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

        ul,
        ol {
            padding: 0;
            margin: 0 0 16px;
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        .section-padding {
            padding: 88px 0;
        }

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

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

        /* ========== 通用标题 ========== */
        .section-title-wrap {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

            .section-title {
                font-size: 27px;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 16px rgba(11, 29, 58, 0.04);
        }

        .navbar-custom {
            padding: 14px 0;
        }

        .navbar-custom .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 19px;
            color: var(--primary);
            letter-spacing: -0.2px;
        }

        .navbar-custom .navbar-brand .brand-icon {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            font-size: 17px;
            box-shadow: 0 4px 14px rgba(11, 29, 58, 0.22);
        }

        .navbar-custom .navbar-brand .brand-text {
            white-space: nowrap;
        }

        .navbar-custom .nav-link-custom {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body);
            padding: 9px 18px !important;
            border-radius: 8px;
            margin: 0 2px;
            transition: var(--transition);
            position: relative;
        }

        .navbar-custom .nav-link-custom:hover {
            color: var(--primary);
            background: rgba(11, 29, 58, 0.05);
        }

        .navbar-custom .nav-link-custom.active {
            color: var(--primary);
            background: var(--accent-soft);
            font-weight: 700;
        }

        .navbar-custom .nav-link-custom.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 8px;
        }

        .nav-search {
            position: relative;
            width: 198px;
        }

        .nav-search input {
            width: 100%;
            height: 40px;
            border: 1px solid var(--border-mid);
            border-radius: 30px;
            padding: 0 40px 0 18px;
            font-size: 14px;
            background: #f8fafc;
            color: var(--text-heading);
            outline: none;
            transition: var(--transition);
        }

        .nav-search input:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(240, 166, 60, 0.15);
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search i {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .btn-nav-login {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 20px;
            border: 1px solid var(--border-mid);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            white-space: nowrap;
            transition: var(--transition);
        }

        .btn-nav-login:hover {
            border-color: var(--accent);
            color: var(--accent-hover);
            background: var(--accent-soft);
            transform: translateY(-1px);
        }

        .btn-nav-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 22px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            background: var(--primary);
            border: none;
            white-space: nowrap;
            transition: var(--transition);
        }

        .btn-nav-primary:hover {
            background: var(--accent);
            color: var(--primary-deep);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(240, 166, 60, 0.35);
        }

        .navbar-toggler {
            border: 1px solid var(--border-mid);
            border-radius: 10px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230b1d3a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.4' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                padding: 18px 0 10px;
            }

            .navbar-custom .nav-link-custom {
                padding: 12px 14px !important;
                margin: 2px 0;
                border-radius: 10px;
            }

            .nav-actions {
                margin-left: 0;
                margin-top: 14px;
                flex-wrap: wrap;
                width: 100%;
            }

            .nav-search {
                flex: 1;
                min-width: 180px;
            }

            .navbar-custom .navbar-brand .brand-text {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .navbar-custom .navbar-brand .brand-text {
                max-width: 220px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
                font-size: 15px;
            }

            .nav-actions .btn-nav-login,
            .nav-actions .btn-nav-primary {
                flex: 1;
                justify-content: center;
                padding: 0 12px;
            }
        }

        /* ========== 页面 Banner ========== */
        .page-banner {
            position: relative;
            padding: 84px 0 92px;
            background: linear-gradient(130deg, rgba(8, 20, 38, 0.94), rgba(11, 29, 58, 0.82)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(240, 166, 60, 0.18), transparent 65%);
            pointer-events: none;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .banner-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(6px);
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 13px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, 0.82);
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .banner-breadcrumb .sep {
            opacity: 0.5;
        }

        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.6px;
            margin-bottom: 18px;
        }

        .page-banner .banner-sub {
            font-size: 18px;
            max-width: 640px;
            margin: 0 auto;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.7;
        }

        .banner-stats {
            display: flex;
            justify-content: center;
            gap: 36px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            text-align: center;
            padding: 14px 26px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            backdrop-filter: blur(4px);
            min-width: 120px;
        }

        .banner-stat-item .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }

        .banner-stat-item .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 66px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .page-banner .banner-sub {
                font-size: 16px;
            }

            .banner-stats {
                gap: 16px;
            }

            .banner-stat-item {
                padding: 12px 18px;
                min-width: 90px;
            }
        }

        /* ========== 核心卡片 ========== */
        .overview-cards {
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }

        .overview-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-md);
            height: 100%;
            border: 1px solid rgba(230, 237, 244, 0.6);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .overview-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-hover));
            opacity: 0;
            transition: var(--transition);
        }

        .overview-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .overview-card:hover::before {
            opacity: 1;
        }

        .overview-card .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: var(--accent-soft);
            color: var(--accent-hover);
        }

        .overview-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        /* ========== 登录流程 ========== */
        .steps-section {
            background: var(--bg-card);
        }

        .step-card {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            background: #fafbfe;
            height: 100%;
            position: relative;
            transition: var(--transition);
        }

        .step-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            background: #fff;
        }

        .step-num {
            font-size: 48px;
            font-weight: 900;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 2px var(--accent);
            display: block;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }

        .step-card .step-icon {
            width: 66px;
            height: 66px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            background: var(--primary);
            color: #fff;
            margin-bottom: 20px;
            box-shadow: 0 8px 18px rgba(11, 29, 58, 0.24);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        .step-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            height: 100%;
        }

        @media (max-width: 991.98px) {
            .step-arrow {
                transform: rotate(90deg);
                padding: 6px 0;
            }
        }

        /* ========== 登录方式 ========== */
        .method-section {
            background: var(--bg-page);
        }

        .method-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            height: 100%;
            min-height: 380px;
            background: url('/assets/images/coverpic/cover-2.png') center center / cover no-repeat;
        }

        .method-image .image-caption {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(8, 20, 38, 0.82);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            color: #fff;
            font-size: 14px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .method-item {
            display: flex;
            gap: 18px;
            padding: 22px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            margin-bottom: 16px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .method-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .method-item .method-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            background: var(--accent-soft);
            color: var(--accent-hover);
        }

        .method-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .method-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .method-item .badge-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            background: rgba(11, 29, 58, 0.06);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            margin-top: 6px;
        }

        /* ========== 安全提示 ========== */
        .security-section {
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .security-section::before {
            content: "";
            position: absolute;
            top: -120px;
            left: -100px;
            width: 340px;
            height: 340px;
            background: radial-gradient(circle, rgba(240, 166, 60, 0.14), transparent 60%);
            pointer-events: none;
        }

        .security-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 60%);
            pointer-events: none;
        }

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

        .security-section .section-title-wrap .section-title {
            color: #fff;
        }

        .security-section .section-title-wrap .section-subtitle {
            color: rgba(255, 255, 255, 0.62);
        }

        .security-section .section-tag {
            background: rgba(240, 166, 60, 0.15);
            color: var(--accent);
        }

        .security-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            height: 100%;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .security-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(240, 166, 60, 0.4);
            transform: translateY(-4px);
        }

        .security-card i {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 14px;
        }

        .security-card h3 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .security-card p {
            color: rgba(255, 255, 255, 0.62);
            font-size: 13px;
            line-height: 1.7;
            margin: 0;
        }

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

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

        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--bg-card);
        }

        .faq-accordion .accordion-header {
            background: transparent;
        }

        .faq-accordion .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            background: var(--bg-card);
            padding: 18px 24px;
            border: none;
            box-shadow: none;
            outline: none;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #f8fafc;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(240, 166, 60, 0.12);
            border-color: var(--accent);
        }

        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230b1d3a'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f0a63c'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .faq-accordion .accordion-body {
            padding: 4px 24px 20px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            background: #f8fafc;
            border-top: 1px solid var(--border-light);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 84px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(240, 166, 60, 0.2), transparent 60%);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.07), transparent 60%);
        }

        .cta-box {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .cta-box h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.4px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 38px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-deep);
            background: var(--accent);
            border: none;
            box-shadow: 0 12px 30px rgba(240, 166, 60, 0.35);
            transition: var(--transition);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            background: #ffb954;
            box-shadow: 0 16px 40px rgba(240, 166, 60, 0.45);
            color: var(--primary-deep);
        }

        .btn-cta i {
            font-size: 15px;
        }

        @media (max-width: 768px) {
            .cta-box h2 {
                font-size: 26px;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.72);
            padding: 68px 0 30px;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 44px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(240, 166, 60, 0.16);
            color: var(--accent);
            font-size: 16px;
        }

        .footer-brand .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.58);
            max-width: 340px;
            margin-bottom: 22px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-deep);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 26px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.6;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 26px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.42);
        }

        .footer-bottom-links {
            display: flex;
            gap: 18px;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.42);
            font-size: 13px;
            transition: var(--transition);
        }

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

        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
            }

            .footer-col:first-child {
                grid-column: span 3;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .footer-col:first-child {
                grid-column: span 2;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== 通用按钮 ========== */
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        /* 焦点可访问性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --primary: #4f6df5;
            --primary-dark: #3b52d4;
            --primary-light: #e8edfe;
            --accent: #f0b90b;
            --accent-hover: #d9a50a;
            --dark: #0b1220;
            --dark-2: #111a2e;
            --dark-3: #1a2540;
            --bg: #f5f7fc;
            --white: #ffffff;
            --text: #1e2a3a;
            --text-weak: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 10px 30px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
            --shadow-primary: 0 10px 30px rgba(79, 109, 245, .25);
            --transition: all .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 18, 32, .94);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .navbar-custom {
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent), #f7d04b);
            border-radius: 10px;
            color: var(--dark);
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(240, 185, 11, .35);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 22px;
            height: 22px;
        }
        .nav-link-custom {
            color: rgba(255, 255, 255, .7) !important;
            font-weight: 500;
            font-size: 15px;
            padding: 8px 18px !important;
            border-radius: 30px;
            margin: 0 2px;
            position: relative;
        }
        .nav-link-custom:hover,
        .nav-link-custom:focus {
            color: #fff !important;
            background: rgba(255, 255, 255, .08);
        }
        .nav-link-custom.active {
            color: #fff !important;
            background: var(--primary);
            box-shadow: 0 6px 20px rgba(79, 109, 245, .35);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-search {
            position: relative;
        }
        .nav-search input {
            width: 180px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 30px;
            padding: 8px 36px 8px 16px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, .45);
        }
        .nav-search input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, .15);
            width: 220px;
        }
        .nav-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
            pointer-events: none;
        }
        .btn-nav-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            border-radius: 30px;
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .25);
            background: transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            background: rgba(255, 255, 255, .12);
            border-color: rgba(255, 255, 255, .5);
            color: #fff;
        }
        .btn-nav-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 22px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent), #f7d04b);
            color: var(--dark);
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(240, 185, 11, .3);
            transition: var(--transition);
        }
        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 185, 11, .42);
            color: var(--dark);
        }
        .article-hero {
            position: relative;
            background: linear-gradient(120deg, rgba(11, 18, 32, .92), rgba(30, 41, 82, .78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 70px 0 60px;
            color: #fff;
            overflow: hidden;
        }
        .article-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(79, 109, 245, .18);
            filter: blur(60px);
        }
        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-wrap a {
            color: rgba(255, 255, 255, .75);
        }
        .breadcrumb-wrap a:hover {
            color: var(--accent);
        }
        .breadcrumb-wrap i {
            font-size: 12px;
        }
        .article-cate-badge {
            display: inline-block;
            padding: 4px 16px;
            background: var(--accent);
            color: var(--dark);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .article-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 18px;
            max-width: 850px;
            letter-spacing: .5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta-item i {
            color: var(--accent);
        }
        .article-section {
            padding: 60px 0;
        }
        .article-main-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .article-cover-img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .article-content-body {
            padding: 40px 44px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2,
        .article-content h3 {
            font-weight: 700;
            margin: 1.6em 0 .8em;
            color: var(--dark);
        }
        .article-content h2 {
            font-size: 24px;
            border-left: 4px solid var(--primary);
            padding-left: 14px;
        }
        .article-content h3 {
            font-size: 20px;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
        }
        .article-content ul,
        .article-content ol {
            padding-left: 22px;
            margin-bottom: 1.4em;
        }
        .article-content li {
            margin-bottom: .5em;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--text-weak);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content table th {
            background: var(--bg);
            font-weight: 600;
        }
        .article-tag-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding: 20px 44px;
            border-top: 1px solid var(--border);
            background: #fafbfe;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-item {
            display: inline-block;
            padding: 5px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
        }
        .tag-item:hover {
            background: var(--primary);
            color: #fff;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .share-label {
            font-size: 14px;
            color: var(--text-weak);
        }
        .share-btn {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-weak);
            font-size: 14px;
            transition: var(--transition);
        }
        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-title i {
            color: var(--primary);
            font-size: 16px;
        }
        .sidebar-info-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-info-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }
        .sidebar-info-list li:last-child {
            border-bottom: none;
        }
        .sidebar-info-list .label {
            color: var(--text-weak);
        }
        .sidebar-info-list .value {
            font-weight: 600;
            color: var(--dark);
        }
        .sidebar-cate-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-cate-list li {
            margin-bottom: 8px;
        }
        .sidebar-cate-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-cate-list a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }
        .sidebar-cate-list a i {
            font-size: 14px;
            opacity: .7;
        }
        .sidebar-latest-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-latest-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-latest-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-latest-list a {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            line-height: 1.5;
            transition: var(--transition);
        }
        .sidebar-latest-list a:hover {
            color: var(--primary);
        }
        .sidebar-latest-list .date {
            display: block;
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-cta-card {
            background: linear-gradient(135deg, var(--dark), var(--dark-3));
            border-radius: var(--radius);
            padding: 28px 24px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .sidebar-cta-card::after {
            content: "";
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(240, 185, 11, .2);
        }
        .sidebar-cta-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .sidebar-cta-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 18px;
        }
        .sidebar-cta-btn {
            display: inline-block;
            padding: 9px 26px;
            background: var(--accent);
            color: var(--dark);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition);
        }
        .sidebar-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(240, 185, 11, .35);
            color: var(--dark);
        }
        .related-section {
            padding: 60px 0;
            background: var(--white);
            border-top: 1px solid var(--border);
        }
        .section-title-wrap {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title-wrap .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 16px;
            border-radius: 30px;
            margin-bottom: 10px;
        }
        .section-title-wrap h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin: 0;
        }
        .related-card {
            display: block;
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px 22px;
        }
        .related-card-body .card-cate {
            font-size: 12px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 6px;
        }
        .related-card-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body .date {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 100%);
            padding: 70px 0;
            color: #fff;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            left: 10%;
            top: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(79, 109, 245, .25);
            filter: blur(80px);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            right: -50px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(240, 185, 11, .15);
            filter: blur(70px);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            margin-bottom: 30px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-block;
            padding: 12px 34px;
            background: linear-gradient(135deg, var(--accent), #f7d04b);
            color: var(--dark);
            border-radius: 30px;
            font-size: 15px;
            font-weight: 700;
            transition: var(--transition);
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(240, 185, 11, .4);
            color: var(--dark);
        }
        .btn-cta-ghost {
            display: inline-block;
            padding: 12px 34px;
            border: 1px solid rgba(255, 255, 255, .35);
            color: #fff;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            background: transparent;
        }
        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            border-color: rgba(255, 255, 255, .6);
        }
        .faq-section {
            padding: 70px 0;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .custom-accordion {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            box-shadow: none !important;
            background: var(--white);
            overflow: hidden;
        }
        .custom-accordion .accordion-button {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            border: none;
            box-shadow: none;
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
        }
        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .custom-accordion .accordion-body {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }
        .custom-accordion .accordion-button::after {
            background-size: 16px;
        }
        .not-found-wrap {
            text-align: center;
            padding: 70px 30px;
        }
        .not-found-icon {
            width: 80px;
            height: 80px;
            background: var(--primary-light);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 30px;
            margin-bottom: 24px;
        }
        .not-found-wrap h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .not-found-wrap p {
            color: var(--text-weak);
            max-width: 420px;
            margin: 0 auto 28px;
        }
        .btn-back-home {
            display: inline-block;
            padding: 11px 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-back-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-primary);
            color: #fff;
        }
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .75);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 800;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 340px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .08);
            border-radius: 50%;
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 12px;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, .45);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .article-hero h1 {
                font-size: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-search {
                display: none;
            }
            .navbar-collapse {
                padding: 16px 0;
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                margin-top: 14px;
            }
            .nav-link-custom {
                padding: 10px 16px !important;
            }
            .article-hero {
                padding: 50px 0 40px;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-content-body {
                padding: 24px 20px;
            }
            .article-tag-row {
                padding: 16px 20px;
            }
            .article-cover-img {
                height: 220px;
            }
            .related-card {
                margin-bottom: 20px;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 15px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .article-hero h1 {
                font-size: 22px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .section-title-wrap h2 {
                font-size: 24px;
            }
            .cta-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta-primary,
            .btn-cta-ghost {
                width: 100%;
                text-align: center;
            }
            .article-tag-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .related-card-img {
                height: 160px;
            }
        }

/* roulang page: category2 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b2838;
            --primary-dark: #070d14;
            --accent: #f4a340;
            --accent-hover: #ffb95c;
            --accent-light: #fff3e0;
            --secondary: #00b4d8;
            --secondary-hover: #48cae4;
            --text-main: #e8edf2;
            --text-body: #94a3b8;
            --text-muted: #64748b;
            --text-dark: #1e293b;
            --bg-body: #0b1520;
            --bg-section: #0f1d2b;
            --bg-card: #132433;
            --bg-card-hover: #182a3c;
            --border-color: #1e3448;
            --border-light: #2a3f55;
            --white: #ffffff;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 8px 30px rgba(244, 163, 64, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--accent);
        }

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

        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ============ 容器 ============ */
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            padding: 0;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(7, 13, 20, 0.97);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
        }

        .navbar-custom {
            padding: 14px 0;
            min-height: 76px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent) 0%, #d47e28 100%);
            border-radius: 12px;
            color: var(--primary-dark);
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(244, 163, 64, 0.35);
            transition: var(--transition);
        }

        .navbar-brand:hover .brand-icon {
            transform: rotate(8deg) scale(1.05);
            box-shadow: 0 6px 20px rgba(244, 163, 64, 0.5);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--white);
            white-space: nowrap;
            background: linear-gradient(90deg, #fff 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-nav {
            gap: 6px;
        }

        .nav-link-custom {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body) !important;
            padding: 10px 18px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: var(--transition);
        }

        .nav-link-custom::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-link-custom:hover {
            color: var(--white) !important;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link-custom:hover::after {
            width: 24px;
        }

        .nav-link-custom.active {
            color: var(--accent) !important;
            background: rgba(244, 163, 64, 0.12);
        }

        .nav-link-custom.active::after {
            width: 24px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 12px;
        }

        .nav-search {
            position: relative;
        }

        .nav-search input {
            width: 180px;
            padding: 9px 16px 9px 38px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search input:focus {
            width: 220px;
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(244, 163, 64, 0.12);
            outline: none;
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .btn-nav-login {
            padding: 9px 20px;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: 30px;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
        }

        .btn-nav-login:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(244, 163, 64, 0.08);
            transform: translateY(-1px);
        }

        .btn-nav-primary {
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--accent) 0%, #d47e28 100%);
            border: none;
            border-radius: 30px;
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(244, 163, 64, 0.3);
            transition: var(--transition);
        }

        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(244, 163, 64, 0.45);
            color: var(--primary-dark);
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
        }

        @media (max-width: 991px) {
            .navbar-custom {
                padding: 10px 0;
            }

            .navbar-collapse {
                padding-top: 16px;
                padding-bottom: 16px;
            }

            .navbar-nav {
                gap: 2px;
                margin-bottom: 16px;
            }

            .nav-link-custom {
                padding: 12px 16px !important;
                border-radius: var(--radius-sm);
            }

            .nav-actions {
                flex-wrap: wrap;
                margin-left: 0;
                gap: 8px;
            }

            .nav-search {
                flex: 1;
                min-width: 160px;
            }

            .nav-search input,
            .nav-search input:focus {
                width: 100%;
            }

            .btn-nav-login,
            .btn-nav-primary {
                flex: 1;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .brand-text {
                font-size: 15px;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }

            .nav-actions {
                flex-direction: column;
            }

            .btn-nav-login,
            .btn-nav-primary {
                width: 100%;
            }
        }

        /* ============ Hero / 分类 Banner ============ */
        .category-hero {
            position: relative;
            padding: 84px 0 76px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #162d42 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(244, 163, 64, 0.18) 0%, transparent 70%);
            border-radius: 50%;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(244, 163, 64, 0.12);
            border: 1px solid rgba(244, 163, 64, 0.35);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 24px;
        }

        .hero-badge i {
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .category-hero h1 span {
            color: var(--accent);
        }

        .category-hero .hero-desc {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text-body);
            max-width: 680px;
            margin-bottom: 32px;
        }

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

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--accent) 0%, #d47e28 100%);
            border: none;
            border-radius: 50px;
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 700;
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(244, 163, 64, 0.45);
            color: var(--primary-dark);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 50px;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--secondary);
            color: var(--white);
            transform: translateY(-3px);
        }

        .hero-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .num {
            font-size: 30px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat-item .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 60px 0 56px;
            }

            .category-hero h1 {
                font-size: 32px;
            }

            .category-hero .hero-desc {
                font-size: 16px;
            }

            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 576px) {
            .category-hero h1 {
                font-size: 26px;
            }

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

            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* ============ 分类简介 ============ */
        .section-intro {
            padding: 90px 0;
            background: var(--bg-body);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 40px;
            max-width: 800px;
        }

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

        .intro-text h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }

        .intro-text p {
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .intro-list {
            margin-top: 24px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            color: var(--text-main);
            font-size: 15px;
        }

        .intro-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 14px;
        }

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

        .intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .intro-visual:hover img {
            transform: scale(1.03);
        }

        .intro-quote {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(13, 27, 42, 0.85);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-main);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 768px) {
            .section-intro {
                padding: 60px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ============ 功能分组卡片 ============ */
        .section-features {
            padding: 90px 0;
            background: var(--bg-section);
            position: relative;
        }

        .section-features::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
        }

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

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 16px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, rgba(244, 163, 64, 0.15) 0%, rgba(0, 180, 216, 0.15) 100%);
            border-radius: 14px;
            margin-bottom: 20px;
        }

        .feature-icon i {
            font-size: 22px;
            color: var(--accent);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        .feature-link i {
            font-size: 12px;
            transition: var(--transition);
        }

        .feature-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 991px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }

            .section-features {
                padding: 60px 0;
            }
        }

        /* ============ 使用流程 ============ */
        .section-flow {
            padding: 90px 0;
            background: var(--bg-body);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            margin-top: 24px;
        }

        .flow-steps::before {
            content: '';
            position: absolute;
            top: 54px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--border-light), var(--secondary), var(--border-light));
            opacity: 0.4;
        }

        .flow-step {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 108px;
            height: 108px;
            background: var(--bg-card);
            border: 2px solid var(--border-color);
            border-radius: 50%;
            margin-bottom: 20px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .step-circle i {
            font-size: 32px;
            color: var(--accent);
            transition: var(--transition);
        }

        .flow-step:hover .step-circle {
            border-color: var(--accent);
            transform: scale(1.06);
            box-shadow: var(--shadow-accent);
        }

        .flow-step:hover .step-circle i {
            transform: scale(1.1);
        }

        .step-num {
            display: inline-block;
            padding: 3px 14px;
            background: rgba(244, 163, 64, 0.12);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .flow-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 8px;
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            padding: 0 6px;
        }

        @media (max-width: 991px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-steps::before {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .section-flow {
                padding: 60px 0;
            }

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

        /* ============ 热门文章列表 ============ */
        .section-articles {
            padding: 90px 0;
            background: var(--bg-section);
        }

        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 16px;
        }

        .article-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }

        .article-thumb {
            flex: 0 0 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .article-card:hover .article-thumb img {
            transform: scale(1.05);
        }

        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(244, 163, 64, 0.12);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .article-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }

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

        @media (max-width: 991px) {
            .article-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .section-articles {
                padding: 60px 0;
            }

            .article-card {
                flex-direction: column;
            }

            .article-thumb {
                flex: 0 0 auto;
                width: 100%;
                height: 180px;
            }
        }

        /* ============ FAQ ============ */
        .section-faq {
            padding: 90px 0;
            background: var(--bg-body);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 16px auto 0;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
        }

        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
        }

        .faq-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(244, 163, 64, 0.12);
            color: var(--accent);
            font-size: 12px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary-dark);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        @media (max-width: 576px) {
            .section-faq {
                padding: 60px 0;
            }

            .faq-question {
                padding: 16px 18px;
            }

            .faq-question h3 {
                font-size: 15px;
            }
        }

        /* ============ CTA ============ */
        .section-cta {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #0f1d2b 60%, var(--primary) 100%);
            position: relative;
            overflow: hidden;
        }

        .section-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 72px;
            height: 72px;
            background: linear-gradient(135deg, var(--accent) 0%, #d47e28 100%);
            border-radius: 20px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-accent);
        }

        .cta-icon i {
            font-size: 28px;
            color: var(--primary-dark);
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-body);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        @media (max-width: 576px) {
            .section-cta {
                padding: 60px 0;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .cta-buttons {
                flex-direction: column;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            font-size: 16px;
        }

        .footer-brand .brand-text {
            font-size: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            color: var(--text-body);
            font-size: 15px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .footer-contact li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            font-size: 14px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom span {
            font-size: 13px;
            color: var(--text-muted);
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 576px) {
            .site-footer {
                padding: 48px 0 0;
            }

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

        /* ============ 通用辅助 ============ */
        .text-accent {
            color: var(--accent) !important;
        }

/* roulang page: category3 */
:root {
            --primary: #0f1c2e;
            --primary-light: #1a2d4a;
            --accent: #e8b83a;
            --accent-hover: #f0c85a;
            --accent-dark: #c9a030;
            --bg: #f5f6fa;
            --bg-alt: #ffffff;
            --bg-dark: #0b1520;
            --text: #1c2430;
            --text-light: #5a6472;
            --text-white: #f5f7fa;
            --border: #e2e6ed;
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius: 16px;
            --radius-lg: 24px;
            --radius-sm: 10px;
            --shadow: 0 6px 24px rgba(15, 28, 46, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 28, 46, 0.14);
            --transition: all 0.3s ease;
            --spacing-section: 90px;
        }

        /* Reset & Base */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header & Nav */
        .site-header {
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .navbar-custom {
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-white);
            white-space: nowrap;
        }
        .navbar-brand:hover {
            color: var(--accent);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 17px;
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 17px;
            letter-spacing: 0.3px;
        }
        .nav-link-custom {
            color: rgba(255, 255, 255, 0.78);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 18px !important;
            border-radius: 8px;
            margin: 0 2px;
            transition: var(--transition);
        }
        .nav-link-custom:hover {
            color: var(--accent);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link-custom.active {
            color: var(--primary);
            background: var(--accent);
            font-weight: 600;
        }
        .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.35);
            padding: 4px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(232, 184, 58, 0.4);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991.98px) {
            .navbar-custom {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .navbar-collapse {
                background: var(--primary);
                border-radius: 16px;
                padding: 18px;
                margin-top: 12px;
                border: 1px solid var(--border-dark);
            }
            .nav-link-custom {
                padding: 12px 18px !important;
                margin: 2px 0;
                border-radius: 10px;
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                margin-top: 16px;
                padding-top: 16px;
                border-top: 1px solid var(--border-dark);
            }
            .nav-search {
                width: 100%;
            }
        }

        /* Nav Actions */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            position: relative;
            width: 190px;
        }
        .nav-search input {
            width: 100%;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 24px;
            padding: 8px 38px 8px 16px;
            color: var(--text-white);
            font-size: 14px;
            transition: var(--transition);
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .nav-search input:focus {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 184, 58, 0.2);
        }
        .nav-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            pointer-events: none;
        }
        .btn-nav-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: var(--text-white);
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
        }
        .btn-nav-login:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .btn-nav-primary {
            background: var(--accent);
            color: var(--primary);
            padding: 8px 22px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
        }
        .btn-nav-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 18px rgba(232, 184, 58, 0.3);
        }

        /* Hero Banner */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 100px 0 110px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .page-banner .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 184, 58, 0.15);
            border: 1px solid rgba(232, 184, 58, 0.4);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 22px;
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .page-banner h1 span {
            color: var(--accent);
        }
        .page-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.85;
            margin-bottom: 30px;
        }
        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 32px;
        }
        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .banner-meta-item i {
            width: 42px;
            height: 42px;
            background: rgba(232, 184, 58, 0.18);
            border: 1px solid rgba(232, 184, 58, 0.35);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 17px;
        }
        .banner-meta-item .meta-text {
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
        }
        .banner-meta-item .meta-value {
            color: var(--text-white);
            font-size: 20px;
            font-weight: 700;
            line-height: 1.2;
        }
        @media (max-width: 767.98px) {
            .page-banner {
                padding: 70px 0 80px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .banner-meta {
                gap: 18px;
            }
        }

        /* Section Common */
        .section-block {
            padding: var(--spacing-section) 0;
        }
        .section-label {
            display: inline-block;
            background: rgba(232, 184, 58, 0.12);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 680px;
        }
        .section-head-center {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }
        .section-head-center .section-subtitle {
            margin: 0 auto;
        }

        /* Stats Cards / Data Overview */
        .stats-grid {
            margin-top: 20px;
        }
        .stat-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 184, 58, 0.4);
        }
        .stat-card .stat-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 23px;
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(232, 184, 58, 0.3);
        }
        .stat-card .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }

        /* Data Category Cards */
        .category-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 184, 58, 0.3);
        }
        .category-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.06);
        }
        .category-card .card-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(11, 21, 32, 0.55), transparent);
        }
        .category-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            z-index: 2;
        }
        .category-card .card-body {
            padding: 24px 26px;
        }
        .category-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .category-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .category-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-card .card-link:hover {
            color: var(--primary);
            gap: 10px;
        }

        /* Data List Section */
        .data-list-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }
        .data-list-section .section-title {
            color: var(--text-white);
        }
        .data-list-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .data-item-row {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 18px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .data-item-row:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(232, 184, 58, 0.35);
            transform: translateX(4px);
        }
        .data-item-row .match-number {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .data-item-row .match-name {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 600;
            flex: 1;
        }
        .data-item-row .match-meta {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 18px;
            flex-shrink: 0;
        }
        .data-item-row .match-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .data-item-row .match-score {
            font-weight: 700;
            font-size: 16px;
            color: var(--accent);
            min-width: 50px;
            text-align: right;
        }
        @media (max-width: 767.98px) {
            .data-item-row {
                flex-wrap: wrap;
                padding: 16px;
            }
            .data-item-row .match-name {
                flex-basis: calc(100% - 60px);
            }
            .data-item-row .match-meta {
                flex-basis: 100%;
                padding-left: 56px;
                gap: 12px;
                font-size: 12px;
            }
            .data-item-row .match-score {
                text-align: left;
            }
        }

        /* Ranking Section */
        .ranking-section {
            background: var(--bg);
        }
        .ranking-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }
        .ranking-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .ranking-header {
            background: var(--primary);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .ranking-header i {
            color: var(--accent);
            font-size: 18px;
        }
        .ranking-header h3 {
            color: var(--text-white);
            font-size: 17px;
            font-weight: 700;
            margin: 0;
        }
        .ranking-header .live-badge {
            margin-left: auto;
            background: rgba(232, 184, 58, 0.2);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .ranking-list {
            padding: 8px 0;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            padding: 14px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-item:hover {
            background: rgba(232, 184, 58, 0.05);
        }
        .ranking-item .rank {
            width: 34px;
            height: 34px;
            background: var(--bg);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--text-light);
            flex-shrink: 0;
            margin-right: 14px;
        }
        .ranking-item .rank.rank-top-1 {
            background: var(--accent);
            color: var(--primary);
        }
        .ranking-item .rank.rank-top-2 {
            background: #e8e1c5;
            color: var(--primary);
        }
        .ranking-item .rank.rank-top-3 {
            background: #d9b382;
            color: var(--primary);
        }
        .ranking-item .team-name {
            flex: 1;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
        }
        .ranking-item .team-score {
            font-weight: 700;
            font-size: 15px;
            color: var(--accent-dark);
            min-width: 45px;
            text-align: right;
        }
        .ranking-item .team-trend {
            margin-left: 12px;
            font-size: 12px;
            width: 20px;
            text-align: center;
        }
        .ranking-item .team-trend.up {
            color: #2d9d6a;
        }
        .ranking-item .team-trend.down {
            color: #d45c5c;
        }

        /* Process / Flow */
        .process-section {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .process-step {
            text-align: center;
            padding: 30px 24px;
            position: relative;
            height: 100%;
        }
        .process-step .step-number {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
            box-shadow: 0 8px 25px rgba(15, 28, 46, 0.2);
            position: relative;
            z-index: 2;
        }
        .process-step .step-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .process-step .step-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .process-step::after {
            content: '→';
            position: absolute;
            top: 55px;
            right: -14px;
            font-size: 28px;
            color: var(--accent);
            font-weight: 300;
            z-index: 3;
        }
        .process-step:last-child::after {
            content: none;
        }
        @media (max-width: 767.98px) {
            .process-step::after {
                content: '↓';
                top: auto;
                right: auto;
                bottom: -14px;
                left: 50%;
                transform: translateX(-50%);
                font-size: 22px;
            }
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 184, 58, 0.35);
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 20px 26px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-answer {
            padding: 0 26px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
        }
        .faq-item.active .faq-answer {
            padding-bottom: 22px;
            max-height: 300px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

        /* CTA */
        .cta-section {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
        }
        .cta-content {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-content h2 {
            color: var(--text-white);
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .btn-cta-primary {
            background: var(--accent);
            color: var(--primary);
            padding: 13px 38px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-cta-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(232, 184, 58, 0.35);
        }
        .btn-cta-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: var(--text-white);
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: 12px;
            transition: var(--transition);
        }
        .btn-cta-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }

        /* Footer */
        .site-footer {
            background: #0b1520;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 3px solid var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
            border-radius: 9px;
        }
        .footer-brand .brand-text {
            color: var(--text-white);
            font-weight: 700;
            font-size: 16px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-title {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            position: relative;
            padding-left: 14px;
        }
        .footer-links a::before {
            content: '›';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 16px;
            line-height: 1.2;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 18px;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 575.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
        }

        /* Section spacing responsive */
        @media (max-width: 767.98px) {
            :root {
                --spacing-section: 60px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-head-center {
                margin-bottom: 36px;
            }
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }