/* roulang page: index */
:root {
            --primary: #1a3c8c;
            --primary-light: #2b56c2;
            --primary-dark: #122a63;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-light: #f4f7fc;
            --bg-white: #ffffff;
            --bg-dark: #101c36;
            --text-main: #1e293b;
            --text-body: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
            --shadow: 0 12px 32px rgba(0,0,0,0.09);
            --shadow-hover: 0 18px 44px rgba(0,0,0,0.14);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-padding {
            padding: 90px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 55px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .section-head h2 span {
            color: var(--primary);
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 50px;
            border: 2px solid var(--primary);
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(26, 60, 140, 0.25);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 60, 140, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(26, 60, 140, 0.2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
            cursor: pointer;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #1e293b;
            font-size: 15px;
            font-weight: 700;
            padding: 13px 32px;
            border-radius: 50px;
            border: 2px solid var(--accent);
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
            cursor: pointer;
        }

        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: #1e293b;
            transform: translateY(-2px);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
        }

        .site-header .navbar {
            padding: 14px 0;
            gap: 16px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-main);
            padding: 0;
            margin: 0;
        }

        .navbar-brand:hover {
            color: var(--text-main);
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }

        .brand-text {
            line-height: 1.2;
        }

        .brand-text em {
            font-style: normal;
            color: var(--accent);
            display: block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .header-search {
            flex: 1;
            max-width: 460px;
            margin: 0 20px;
        }

        .header-search form {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 2px solid var(--border);
            border-radius: 50px;
            padding: 4px 6px 4px 18px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .header-search form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26, 60, 140, 0.08);
            background: #fff;
        }

        .header-search .search-icon {
            color: var(--text-muted);
            font-size: 14px;
            margin-right: 8px;
        }

        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 14px;
            padding: 10px 0;
            color: var(--text-main);
            min-width: 0;
        }

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

        .header-search button {
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 50px;
            transition: background 0.3s ease;
            flex-shrink: 0;
        }

        .header-search button:hover {
            background: var(--primary-dark);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 50px;
            transition: all 0.25s ease;
            position: relative;
        }

        .nav-links .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 60, 140, 0.05);
        }

        .nav-links .nav-link.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(26, 60, 140, 0.3);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid var(--border);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text-main);
            font-size: 18px;
            transition: all 0.2s ease;
        }

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

        /* 移动端折叠菜单 */
        .mobile-nav-panel {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 0;
        }

        .mobile-nav-panel.open {
            display: block;
        }

        .mobile-nav-panel .nav-links {
            flex-direction: column;
            align-items: flex-start;
            gap: 2px;
        }

        .mobile-nav-panel .nav-links .nav-link {
            width: 100%;
            padding: 14px 16px;
            border-radius: 10px;
            font-size: 16px;
        }

        .mobile-nav-panel .header-search {
            margin: 14px 0 4px;
            max-width: 100%;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 130px 0 120px;
            color: #fff;
            display: flex;
            align-items: center;
            min-height: 620px;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 20, 45, 0.88) 0%, rgba(10, 20, 45, 0.65) 50%, rgba(10, 20, 45, 0.35) 100%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.5);
            color: #fbbf24;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 22px;
            backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: -1px;
        }

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

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            padding: 24px 32px;
            max-width: 620px;
        }

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

        .hero-stats .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stats .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ========== 核心特色 ========== */
        .features-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

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

        .feature-card {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .feature-card .feature-img {
            height: 190px;
            overflow: hidden;
            position: relative;
        }

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

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

        .feature-card .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(16, 28, 54, 0.5), transparent 60%);
        }

        .feature-card .feature-body {
            padding: 26px 26px 30px;
            flex: 1;
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            margin-bottom: 16px;
            box-shadow: 0 6px 16px rgba(26, 60, 140, 0.2);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 0;
        }

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

        .category-main {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            background: url('/assets/images/coverpic/cover-4.png') center/cover no-repeat;
            transition: all var(--transition);
        }

        .category-main::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(16, 28, 54, 0.85), transparent 70%);
        }

        .category-main:hover {
            box-shadow: var(--shadow-hover);
        }

        .category-main .category-content {
            position: relative;
            z-index: 2;
            padding: 36px;
            color: #fff;
        }

        .category-main .category-label {
            display: inline-block;
            background: var(--accent);
            color: #1e293b;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .category-main h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .category-main p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 18px;
            max-width: 380px;
        }

        .category-main .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 22px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: 50px;
            transition: all 0.3s ease;
        }

        .category-main .category-link:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }

        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 30px;
        }

        .category-tags .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.3s ease;
        }

        .category-tags .tag-item i {
            color: var(--accent);
        }

        .category-tags .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ========== 数据成就 ========== */
        .stats-section {
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat fixed;
            position: relative;
            padding: 90px 0;
            color: #fff;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(16, 28, 54, 0.88);
        }

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

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

        .stat-card {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 40px 20px;
            transition: all var(--transition);
            backdrop-filter: blur(6px);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .stat-card i {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .stat-card .stat-num {
            font-size: 38px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            display: block;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 8px;
            display: block;
        }

        /* ========== 最新资讯 ========== */
        .latest-posts {
            background: var(--bg-white);
        }

        .post-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 26px 26px 24px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
        }

        .post-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .post-cat {
            background: rgba(26, 60, 140, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
        }

        .post-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        .post-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .post-title a {
            color: var(--text-main);
            transition: color 0.2s ease;
        }

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

        .post-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.3s ease;
        }

        .post-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            font-size: 16px;
            color: var(--text-muted);
        }

        /* ========== 推荐内容展示 ========== */
        .showcase-section {
            background: var(--bg-light);
        }

        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .showcase-card {
            display: flex;
            flex-direction: row;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
        }

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

        .showcase-card .showcase-img {
            width: 45%;
            min-height: 240px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .showcase-card .showcase-body {
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .showcase-card .showcase-tag {
            display: inline-block;
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .showcase-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
        }

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

        .showcase-card .showcase-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
        }

        /* ========== 服务流程 ========== */
        .process-section {
            background: var(--bg-white);
        }

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

        .process-step {
            text-align: center;
            padding: 36px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }

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

        .process-step .step-number {
            position: absolute;
            top: 18px;
            left: 20px;
            font-size: 40px;
            font-weight: 900;
            color: rgba(26, 60, 140, 0.08);
            line-height: 1;
        }

        .process-step .step-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            margin: 0 auto 18px;
            box-shadow: 0 8px 20px rgba(26, 60, 140, 0.2);
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-body);
            margin-bottom: 0;
        }

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

        .faq-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 50px;
            align-items: flex-start;
        }

        .faq-intro .section-tag {
            margin-bottom: 14px;
        }

        .faq-intro h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 16px;
        }

        .faq-intro p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .faq-intro .faq-contact {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-intro .faq-contact i {
            font-size: 20px;
            color: var(--primary);
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-main);
            font-size: 15px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: rgba(26, 60, 140, 0.02);
        }

        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-question[aria-expanded="true"] i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-answer.open {
            max-height: 200px;
            padding: 0 24px 20px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
            padding: 90px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 60, 140, 0.92), rgba(16, 28, 54, 0.85));
        }

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

        .cta-section h2 {
            font-size: 36px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #94a3b8;
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }

        .footer-brand .navbar-brand {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            background: var(--accent);
            color: #1e293b;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
            margin-bottom: 18px;
        }

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

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #1e293b;
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            font-size: 14px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a::before {
            content: '›';
            font-size: 18px;
            color: var(--accent);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

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

        .footer-contact li {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 14px;
            line-height: 1.6;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(148, 163, 184, 0.7);
        }

        .footer-bottom .theme-link {
            color: rgba(148, 163, 184, 0.7);
        }

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

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

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

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

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

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

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

            .hero {
                padding: 90px 0 80px;
                min-height: auto;
            }

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

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

            .hero-stats {
                gap: 20px;
                padding: 18px 22px;
            }

            .hero-stats .stat-num {
                font-size: 22px;
            }

            .nav-links,
            .header-search.d-none {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }

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

            .showcase-card .showcase-img {
                width: 100%;
                min-height: 200px;
            }

            .cta-section h2 {
                font-size: 28px;
            }
        }

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

            .section-head h2 {
                font-size: 26px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

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

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                text-align: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 14px;
            }

            .hero h1 {
                font-size: 29px;
            }

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

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

            .category-tags .tag-item {
                padding: 8px 14px;
                font-size: 13px;
            }

            .btn-primary,
            .btn-outline,
            .btn-accent {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0b1b33;
            --primary-light: #1f3352;
            --accent: #f6b41b;
            --accent-dark: #d99c0a;
            --bg: #f5f7fa;
            --bg-alt: #eef1f6;
            --text: #1f2a3a;
            --text-light: #6b7a8f;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius: 18px;
            --radius-lg: 26px;
            --shadow-sm: 0 2px 10px rgba(11, 27, 51, 0.05);
            --shadow: 0 12px 32px rgba(11, 27, 51, 0.10);
            --shadow-lg: 0 24px 52px rgba(11, 27, 51, 0.15);
            --spacer: 96px;
            --spacer-md: 72px;
            --spacer-sm: 48px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        button,
        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
        }

        .section {
            padding: var(--spacer) 0;
        }

        .section-sm {
            padding: var(--spacer-sm) 0;
        }

        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }

        .section-head .eyebrow {
            display: inline-block;
            background: rgba(246, 180, 27, 0.12);
            color: var(--accent-dark);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 17px;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1060;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 12px rgba(11, 27, 51, 0.04);
        }

        .site-header .navbar {
            min-height: 76px;
            padding: 10px 0;
            gap: 24px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            padding: 0;
            margin: 0;
            flex-shrink: 0;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent), #ffdd66);
            color: var(--primary);
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(246, 180, 27, 0.35);
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .brand-text em {
            font-style: normal;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .header-search {
            flex: 1;
            max-width: 460px;
            margin: 0 12px;
        }

        .header-search form {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1.5px solid var(--border);
            border-radius: 40px;
            padding: 6px 6px 6px 16px;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .header-search form:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(246, 180, 27, 0.15);
            background: #fff;
        }

        .header-search .search-icon {
            color: var(--text-light);
            font-size: 15px;
            margin-right: 10px;
        }

        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            padding: 8px 0;
        }

        .header-search input::placeholder {
            color: #9aa8b9;
        }

        .header-search button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 8px 22px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
        }

        .header-search button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            border-radius: 24px;
            transition: color 0.25s, background 0.25s;
            white-space: nowrap;
        }

        .nav-links .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 27, 51, 0.05);
        }

        .nav-links .nav-link.active {
            color: var(--primary);
            background: rgba(246, 180, 27, 0.15);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1.5px solid var(--border);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            font-size: 18px;
            color: var(--primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: border-color 0.25s;
        }

        .nav-toggle:hover {
            border-color: var(--accent);
        }

        .mobile-nav-panel {
            display: none;
        }

        .mobile-nav-panel.open {
            display: block;
            border-top: 1px solid var(--border);
            background: #fff;
            padding: 16px 0 24px;
            animation: fadeSlide 0.3s ease;
        }

        @keyframes fadeSlide {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mobile-nav-panel .nav-links {
            flex-direction: column;
            align-items: flex-start;
            gap: 2px;
            margin-bottom: 16px;
        }

        .mobile-nav-panel .nav-links .nav-link {
            display: block;
            width: 100%;
            padding: 12px 14px;
            border-radius: 12px;
            font-size: 16px;
        }

        .mobile-nav-panel .header-search {
            max-width: none;
            margin: 0;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 150px 0 120px;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 27, 51, 0.92), rgba(15, 40, 70, 0.75));
        }

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

        .hero-breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color 0.25s;
        }

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

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

        .hero-breadcrumb .current {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: 58px;
            font-weight: 900;
            letter-spacing: 1px;
            line-height: 1.2;
            margin-bottom: 20px;
            max-width: 640px;
        }

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

        .page-hero .lead {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            max-width: 620px;
            margin-bottom: 34px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
            text-decoration: none;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 8px 22px rgba(246, 180, 27, 0.35);
        }

        .btn-accent:hover {
            background: #ffc94d;
            color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(246, 180, 27, 0.45);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.55);
            backdrop-filter: blur(6px);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-quick-search {
            max-width: 560px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 46px;
            padding: 6px;
            display: flex;
            align-items: center;
        }

        .hero-quick-search i {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            padding: 0 14px;
        }

        .hero-quick-search input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 15px;
            padding: 10px 0;
        }

        .hero-quick-search input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .hero-quick-search button {
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 40px;
            padding: 10px 26px;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.25s;
        }

        .hero-quick-search button:hover {
            background: #ffc94d;
        }

        /* ========== Category Overview ========== */
        .category-overview {
            background: #fff;
        }

        .overview-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 64px;
            align-items: center;
        }

        .overview-content .eyebrow {
            display: inline-block;
            background: rgba(246, 180, 27, 0.15);
            color: var(--accent-dark);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 18px;
        }

        .overview-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 18px;
        }

        .overview-content p {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 26px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 16px;
        }

        .feature-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 18px;
            background: var(--bg);
            border-radius: 16px;
            border-left: 4px solid var(--accent);
            transition: transform 0.25s, box-shadow 0.25s;
        }

        .feature-list li:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-sm);
        }

        .feature-list .icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(246, 180, 27, 0.18);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .feature-list .text strong {
            display: block;
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 2px;
        }

        .feature-list .text span {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .overview-visual {
            position: relative;
        }

        .overview-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            min-height: 380px;
            object-fit: cover;
        }

        .overview-visual .floating-card {
            position: absolute;
            bottom: 28px;
            left: -24px;
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            animation: floatY 4s ease-in-out infinite;
        }

        @keyframes floatY {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        .floating-card .fc-icon {
            width: 46px;
            height: 46px;
            background: rgba(246, 180, 27, 0.2);
            border-radius: 14px;
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .floating-card .fc-text strong {
            display: block;
            font-size: 20px;
            color: var(--primary);
            line-height: 1.3;
        }

        .floating-card .fc-text span {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ========== Latest News ========== */
        .latest-news {
            background: var(--bg);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform 0.3s, box-shadow 0.3s;
        }

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

        .news-card .card-img {
            position: relative;
            overflow: hidden;
            height: 210px;
        }

        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

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

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(246, 180, 27, 0.95);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
        }

        .card-body {
            padding: 22px;
        }

        .card-meta {
            display: flex;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .card-meta i {
            color: var(--accent-dark);
            margin-right: 4px;
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s, color 0.25s;
        }

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

        /* ========== Hot Categories ========== */
        .hot-categories {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            position: relative;
            color: #fff;
            text-align: center;
        }

        .hot-categories::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 27, 51, 0.94), rgba(11, 27, 51, 0.82));
        }

        .hot-categories .container {
            position: relative;
            z-index: 2;
        }

        .hot-categories .section-head h2 {
            color: #fff;
        }

        .hot-categories .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .category-chip-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 12px;
        }

        .category-chip {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 30px 22px;
            transition: background 0.3s, transform 0.3s, border-color 0.3s;
            cursor: pointer;
            display: block;
            color: #fff;
        }

        .category-chip:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--accent);
            transform: translateY(-6px);
            color: #fff;
        }

        .chip-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 16px;
            background: rgba(246, 180, 27, 0.2);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
        }

        .category-chip h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-chip p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== Stats ========== */
        .stats-section {
            background: linear-gradient(135deg, #0b1b33, #1c3157);
            color: #fff;
            padding: 72px 0;
        }

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

        .stat-item .num {
            font-size: 46px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-item .label {
            margin-top: 8px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.5px;
        }

        /* ========== Guide Process ========== */
        .guide-process {
            background: #fff;
        }

        .guide-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .guide-step {
            position: relative;
            padding: 34px 24px 28px;
            background: var(--bg);
            border-radius: var(--radius);
            border-top: 4px solid transparent;
            transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
            text-align: center;
        }

        .guide-step:hover {
            border-top-color: var(--accent);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

        .guide-step .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
        }

        .guide-step .step-icon {
            font-size: 28px;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }

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

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

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

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

        .faq-wrap .accordion-item {
            background: #fff;
            border: 1px solid var(--border) !important;
            border-radius: 16px !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s;
        }

        .faq-wrap .accordion-item:last-child {
            margin-bottom: 0;
        }

        .faq-wrap .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
            transition: color 0.25s;
        }

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

        .faq-wrap .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-wrap .accordion-button:not(.collapsed)::after {
            content: '\f077';
            transform: none;
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(246, 180, 27, 0.12);
        }

        .faq-wrap .accordion-body {
            padding: 4px 24px 24px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            background: #fff;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 96px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 27, 51, 0.9), rgba(11, 27, 51, 0.72));
        }

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

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0a1628;
            color: rgba(255, 255, 255, 0.65);
            padding: 72px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .site-footer .navbar-brand {
            margin-bottom: 14px;
        }

        .site-footer p {
            line-height: 1.8;
            margin-bottom: 18px;
        }

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

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.75);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: background 0.25s, color 0.25s, transform 0.25s;
        }

        .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;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.25s, padding-left 0.25s;
        }

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

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 12px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --spacer: 76px;
            }

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

            .overview-grid {
                gap: 40px;
            }

            .stats-grid {
                gap: 24px;
            }

            .stat-item .num {
                font-size: 38px;
            }

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

        @media (max-width: 991.98px) {
            .site-header .header-search.d-none {
                display: none !important;
            }

            .site-header .nav-links.d-none {
                display: none !important;
            }

            .nav-toggle {
                display: flex;
                margin-left: auto;
            }

            .mobile-nav-panel {
                display: none;
            }

            .mobile-nav-panel.open {
                display: block;
            }

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

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

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

            .overview-visual {
                margin-top: 12px;
            }

            .overview-visual .floating-card {
                left: 16px;
                bottom: 16px;
            }

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

        @media (max-width: 768px) {
            .page-hero {
                padding: 110px 0 80px;
            }

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

            .page-hero .lead {
                font-size: 16px;
            }

            .hero-quick-search {
                flex-direction: column;
                background: transparent;
                border: none;
                gap: 10px;
                align-items: stretch;
            }

            .hero-quick-search i {
                display: none;
            }

            .hero-quick-search input {
                background: rgba(255, 255, 255, 0.12);
                border: 1px solid rgba(255, 255, 255, 0.2);
                border-radius: 30px;
                padding: 12px 20px;
            }

            .hero-quick-search button {
                padding: 12px 24px;
                border-radius: 30px;
            }

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

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

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

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

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

            .section-head h2 {
                font-size: 30px;
            }

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

            .overview-content h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacer: 56px;
            }

            .navbar-brand .brand-text {
                font-size: 17px;
            }

            .navbar-brand .brand-text em {
                font-size: 11px;
            }

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

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

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

            .btn-custom {
                justify-content: center;
            }

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

            .stat-item .num {
                font-size: 32px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .section-head p {
                font-size: 15px;
            }

            .footer-contact li {
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
    --primary: #f59e0b;
    --primary-dark: #d97706;
    --primary-light: #fef3c7;
    --secondary: #0f172a;
    --secondary-2: #1e293b;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --white: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    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%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; }

/* ===== Header / Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 20px rgba(15, 23, 42, 0.06);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-top: 14px;
    padding-bottom: 14px;
}
.site-header .navbar {
    width: 100%;
    padding: 0;
    flex-wrap: nowrap;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
}
.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}
.brand-text {
    display: flex;
    flex-direction: column;
    font-size: 22px;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: 0.5px;
    line-height: 1.2;
    white-space: nowrap;
}
.brand-text em {
    font-style: normal;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-dark);
    letter-spacing: 2px;
    margin-top: 2px;
}
.header-search {
    flex: 1;
    max-width: 440px;
    min-width: 260px;
}
.header-search form {
    display: flex;
    align-items: center;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 6px 6px 18px;
    transition: var(--transition);
}
.header-search form:focus-within {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}
.header-search .search-icon {
    color: var(--text-light);
    margin-right: 10px;
    font-size: 14px;
    flex-shrink: 0;
}
.header-search input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    color: var(--text);
    min-width: 0;
}
.header-search input::placeholder { color: #94a3b8; }
.header-search button {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}
.header-search button:hover { background: var(--primary-dark); }
.nav-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
.nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 8px;
}
.nav-links .nav-link {
    display: inline-block;
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-light);
    white-space: nowrap;
}
.nav-links .nav-link:hover { color: var(--primary-dark); background: var(--primary-light); }
.nav-links .nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}
.mobile-nav-panel {
    display: none;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 18px 0 26px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}
.mobile-nav-panel.show { display: block; }
.mobile-nav-panel .nav-links {
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}
.mobile-nav-panel .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--bg-alt);
    color: var(--text);
    font-size: 15px;
}
.mobile-nav-panel .nav-link.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    box-shadow: none;
}
.mobile-nav-panel .header-search { max-width: 100%; width: 100%; }

/* ===== Page Banner ===== */
.page-banner {
    position: relative;
    padding: 80px 0 64px;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    border-bottom: 4px solid var(--primary);
}
.breadcrumb-nav {
    margin-bottom: 22px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.breadcrumb-nav a { color: var(--primary); }
.breadcrumb-nav a:hover { text-decoration: underline; }
.breadcrumb-sep { color: rgba(255, 255, 255, 0.4); }
.breadcrumb-current { color: rgba(255, 255, 255, 0.85); max-width: 360px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.category-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.18);
    border: 1px solid rgba(245, 158, 11, 0.45);
    color: var(--primary);
    padding: 5px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
}
.page-banner h1 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    margin: 16px 0 0;
    max-width: 820px;
}
.banner-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}
.banner-meta i { color: var(--primary); margin-right: 6px; }

/* ===== Article Section ===== */
.article-section {
    padding: 56px 0 60px;
}
.article-layout {
    max-width: 880px;
    margin: 0 auto;
}
.article-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 48px;
    border: 1px solid var(--border);
}
.article-body {
    font-size: 17px;
    line-height: 1.9;
    color: #334155;
}
.article-body p { margin-bottom: 1.6em; }
.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 1.8em 0 0.8em;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
    color: var(--secondary);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 1.5em 0 0.6em;
    color: var(--secondary);
}
.article-body ul,
.article-body ol { padding-left: 1.4em; margin-bottom: 1.6em; }
.article-body li { margin-bottom: 0.45em; }
.article-body img { border-radius: 12px; margin: 1.6em 0; box-shadow: var(--shadow); }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 1.6em 0;
    color: #78350f;
}
.article-body a { color: var(--primary-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary); }
.article-note {
    margin-top: 36px;
    background: var(--bg-alt);
    border: 1px dashed var(--border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.article-note i { color: var(--primary); font-size: 18px; margin-top: 2px; flex-shrink: 0; }
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 32px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}
.tag-label {
    display: inline-block;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    color: var(--text-light);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    transition: var(--transition);
}
.tag-label:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary-dark); }
.article-share {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
    padding: 18px 22px;
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
    gap: 12px;
}
.share-text { font-weight: 600; color: var(--text-light); font-size: 14px; }
.share-btns { display: flex; gap: 10px; }
.share-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text-light);
    transition: var(--transition);
}
.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.14);
    color: #fff;
}
.share-btn.weibo:hover { background: #e6162d; border-color: #e6162d; }
.share-btn.wechat:hover { background: #07c160; border-color: #07c160; }
.share-btn.link:hover { background: var(--secondary); border-color: var(--secondary); }

/* ===== Not Found ===== */
.not-found {
    text-align: center;
    padding: 50px 20px;
}
.nf-icon { font-size: 60px; color: var(--primary); margin-bottom: 20px; }
.not-found h2 { font-size: 26px; font-weight: 800; color: var(--secondary); margin-bottom: 10px; }
.not-found p { color: var(--text-light); margin-bottom: 26px; }
.btn-home {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 12px 34px;
    border-radius: 999px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.3);
}
.btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(245, 158, 11, 0.4); color: #fff; }

/* ===== Related Section ===== */
.related-section {
    padding: 64px 0 72px;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 32px;
    gap: 16px;
}
.section-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--secondary);
    margin: 0;
    position: relative;
    padding-left: 16px;
    line-height: 1.3;
}
.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    border-radius: 4px;
    background: var(--primary);
}
.section-sub { color: var(--text-light); margin: 8px 0 0; font-size: 15px; }
.section-link { color: var(--primary-dark); font-weight: 600; font-size: 14px; white-space: nowrap; }
.section-link:hover { color: var(--primary); }
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
    transition: var(--transition);
    display: block;
    height: 100%;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(245, 158, 11, 0.4);
}
.card-img {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: var(--secondary);
}
.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .card-img img { transform: scale(1.06); }
.card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(245, 158, 11, 0.95);
    color: #fff;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
    z-index: 2;
}
.related-card .card-body { padding: 22px; }
.related-card .card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
    line-height: 1.5;
    transition: var(--transition);
}
.related-card:hover .card-body h3 { color: var(--primary-dark); }
.related-card .card-body p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.card-meta .read-more { color: var(--primary-dark); font-weight: 600; }
.card-meta .read-more:hover { color: var(--primary); }

/* ===== CTA ===== */
.cta-section {
    padding: 64px 0;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-2) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    background-blend-mode: overlay;
    color: #fff;
    text-align: center;
}
.cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { color: rgba(255, 255, 255, 0.78); max-width: 560px; margin: 0 auto 30px; font-size: 16px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 14px 36px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}
.btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45); }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    padding: 14px 36px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
}
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); color: #fff; transform: translateY(-2px); }

/* ===== Footer ===== */
.site-footer {
    background: var(--secondary);
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 0;
    border-top: 4px solid var(--primary);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .navbar-brand { margin-bottom: 12px; }
.footer-brand p {
    margin: 16px 0;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.58);
    max-width: 300px;
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.footer-title {
    color: #fff;
    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: 24px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}
.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.58); font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 5px; }
.footer-contact {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-contact li {
    margin-bottom: 12px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.58);
    word-break: break-all;
}
.footer-contact i { color: var(--primary); font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== Back to Top ===== */
.back-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border: none;
    font-size: 16px;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .site-header .container { gap: 16px; }
    .nav-links.d-lg-flex { display: none !important; }
    .nav-toggle { display: inline-flex !important; }
    .header-search.d-lg-block { display: none !important; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 767.98px) {
    .page-banner { padding: 50px 0 44px; }
    .article-card { padding: 28px 22px; }
    .article-body { font-size: 16px; line-height: 1.85; }
    .article-layout { padding: 0; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-section h2 { font-size: 26px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .brand-text { font-size: 19px; }
    .brand-text em { font-size: 11px; }
}
@media (max-width: 575.98px) {
    .section-title { font-size: 24px; }
    .banner-meta { gap: 10px; }
    .article-share { flex-direction: column; align-items: flex-start; }
    .page-banner h1 { font-size: 26px; }
    .breadcrumb-nav { font-size: 13px; }
    .back-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
}