/* roulang page: index */
:root {
            --primary: #2a6df4;
            --primary-dark: #1e4fbe;
            --primary-light: #eaf0fe;
            --accent: #ff7a2f;
            --accent-light: #fff1e9;
            --dark: #0d1b2e;
            --dark-2: #132743;
            --text: #1b2838;
            --text-weak: #5b6b7c;
            --bg: #f5f7fb;
            --bg-white: #ffffff;
            --border: #e3e9f2;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(13, 27, 46, .06);
            --shadow-md: 0 8px 30px rgba(13, 27, 46, .08);
            --shadow-lg: 0 16px 48px rgba(42, 109, 244, .12);
            --spacing-section: 90px;
            --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-base);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }

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

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

        /* ===== Header 导航 ===== */
        .site-header {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, .03);
        }

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

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--dark) !important;
            letter-spacing: -.3px;
        }

        .brand-badge {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary) 0%, #5a9cff 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 4px 14px rgba(42, 109, 244, .3);
        }

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

        .navbar-nav .nav-link {
            font-weight: 600;
            font-size: .95rem;
            color: var(--text) !important;
            padding: 8px 18px !important;
            margin: 0 4px;
            border-radius: 10px;
            position: relative;
            transition: all .25s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary) !important;
            background: var(--primary-light);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: var(--primary-light);
        }

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

        .header-cta .btn {
            border-radius: 50px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: .92rem;
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            background: linear-gradient(135deg, #0b1839 0%, #12264f 50%, #1e3a6e 100%);
            padding: 110px 0 90px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: .25;
            z-index: 1;
        }

        .hero::after {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 122, 47, .25) 0%, transparent 70%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 50px;
            padding: 6px 18px;
            font-size: .85rem;
            font-weight: 600;
            color: #e6edf7;
            backdrop-filter: blur(6px);
            margin-bottom: 24px;
        }

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

        .hero h1 {
            font-size: 3.4rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .hero h1 .highlight {
            background: linear-gradient(120deg, #ffb88c 0%, #ff7a2f 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        .btn-brand {
            background: var(--primary);
            border: none;
            border-radius: 50px;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 6px 20px rgba(42, 109, 244, .4);
            transition: all .3s ease;
        }

        .btn-brand:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            color: #fff;
            box-shadow: 0 10px 28px rgba(42, 109, 244, .3);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .35);
            border-radius: 50px;
            padding: 14px 30px;
            font-weight: 600;
            font-size: 1rem;
            color: #fff !important;
            backdrop-filter: blur(8px);
            transition: all .3s ease;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .2);
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

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

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

        .hero-stat .label {
            font-size: .85rem;
            color: rgba(255, 255, 255, .65);
        }

        .hero-img-wrap {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-card-stack {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(10px);
            box-shadow: 0 24px 64px rgba(0, 0, 0, .3);
            max-width: 420px;
            width: 100%;
        }

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

        .hero-card-body {
            padding: 24px;
        }

        .hero-card-body .tag {
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            padding: 4px 14px;
            font-size: .75rem;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 12px;
        }

        .hero-card-body h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .hero-card-body p {
            font-size: .85rem;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 0;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 700;
            border-radius: 50px;
            padding: 6px 16px;
            margin-bottom: 14px;
            letter-spacing: .3px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 640px;
            line-height: 1.8;
        }

        /* ===== 核心说明/亮点 ===== */
        .feature-grid .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            height: 100%;
            transition: all .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: #d0ddf0;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

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

        .feature-icon.orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        .feature-icon.green {
            background: #e8f7f0;
            color: #23a55a;
        }

        .feature-icon.purple {
            background: #f1eafd;
            color: #8151e6;
        }

        .feature-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: .92rem;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--dark);
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }

        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .55;
            transition: opacity .4s ease;
        }

        .category-card:hover img {
            opacity: .35;
        }

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

        .category-info {
            position: relative;
            z-index: 2;
            padding: 26px;
            color: #fff;
            width: 100%;
            background: linear-gradient(to top, rgba(0, 0, 0, .75) 0%, transparent 100%);
        }

        .category-info h4 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .category-info p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 12px;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #fff !important;
            font-size: .88rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .4);
            border-radius: 50px;
            padding: 7px 18px;
            transition: all .3s ease;
        }

        .category-link:hover {
            background: rgba(255, 255, 255, .2);
            border-color: #fff;
            gap: 12px;
        }

        /* ===== 最新资讯列表（CMS） ===== */
        .news-section {
            background: var(--bg);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all .3s ease;
            box-shadow: var(--shadow-sm);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #d0ddf0;
            transform: translateX(6px);
        }

        .news-badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            border-radius: 6px;
            padding: 4px 12px;
            white-space: nowrap;
        }

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

        .news-item .news-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item .news-content p {
            font-size: .88rem;
            color: var(--text-weak);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            white-space: nowrap;
            font-size: .82rem;
            color: var(--text-weak);
        }

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

        .news-more {
            font-size: .95rem;
            font-weight: 600;
            color: var(--primary);
        }

        .empty-news {
            background: #fff;
            border: 2px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-weak);
            font-size: 1rem;
        }

        .view-all-wrap {
            text-align: center;
            margin-top: 36px;
        }

        .btn-outline-brand {
            border: 2px solid var(--primary);
            color: var(--primary) !important;
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            font-size: .95rem;
            background: transparent;
            transition: all .3s ease;
        }

        .btn-outline-brand:hover {
            background: var(--primary);
            color: #fff !important;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(42, 109, 244, .25);
        }

        /* ===== 数据/流程板块 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .12;
            z-index: 1;
        }

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

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-block .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
        }

        .stat-block .stat-num span {
            color: var(--accent);
        }

        .stat-block .stat-label {
            font-size: .9rem;
            color: rgba(255, 255, 255, .65);
            margin-top: 6px;
        }

        .process-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .process-step {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            position: relative;
            text-align: center;
            transition: all .3s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-5px);
        }

        .step-num {
            width: 46px;
            height: 46px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto 18px;
            box-shadow: 0 4px 14px rgba(255, 122, 47, .4);
        }

        .process-step h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .process-step p {
            font-size: .84rem;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 0;
        }

        /* ===== 精品内容/图文区块 ===== */
        .showcase-section {
            background: #fff;
        }

        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

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

        .showcase-img img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .showcase-img:hover img {
            transform: scale(1.04);
        }

        .showcase-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 18px;
            line-height: 1.35;
        }

        .showcase-content p {
            font-size: .96rem;
            color: var(--text-weak);
            margin-bottom: 16px;
            line-height: 1.8;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 24px 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: .94rem;
        }

        .feature-list li i {
            color: var(--primary);
            margin-top: 4px;
        }

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

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

        .accordion-button {
            font-weight: 700;
            font-size: 1rem;
            color: var(--dark);
            padding: 20px 24px;
            background: #fff !important;
            transition: background .3s ease;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            background: var(--primary-light) !important;
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .accordion-body {
            padding: 20px 24px;
            font-size: .92rem;
            color: var(--text-weak);
            line-height: 1.75;
            border-top: 1px solid var(--border);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1e4fbe 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: .15;
            z-index: 1;
        }

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

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1rem;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 32px;
        }

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

        .btn-light-accent {
            background: #fff;
            color: var(--primary) !important;
            border-radius: 50px;
            padding: 14px 36px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all .3s ease;
        }

        .btn-light-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
        }

        .btn-outline-white {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .6);
            color: #fff !important;
            border-radius: 50px;
            padding: 12px 34px;
            font-weight: 600;
            font-size: 1rem;
            transition: all .3s ease;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .15);
            border-color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff !important;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: .9rem;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, .55);
        }

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

        .footer-links li a {
            display: block;
            padding: 6px 0;
            font-size: .9rem;
            color: rgba(255, 255, 255, .6);
            transition: all .25s ease;
        }

        .footer-links li a:hover {
            color: var(--accent);
            padding-left: 8px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .88rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            margin-top: 50px;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 70px;
            }

            .hero {
                padding: 80px 0 60px;
            }

            .hero h1 {
                font-size: 2.8rem;
            }

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

            .process-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .hero {
                padding: 60px 0 50px;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero-subtitle {
                font-size: .95rem;
            }

            .hero-stats {
                gap: 24px;
            }

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

            .section-title {
                font-size: 1.7rem;
            }

            .section-desc {
                font-size: .92rem;
            }

            .news-list {
                gap: 14px;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 20px;
            }

            .news-meta {
                width: 100%;
                justify-content: space-between;
            }

            .news-item .news-content h5 {
                white-space: normal;
                line-height: 1.4;
            }

            .navbar-collapse {
                background: #fff;
                border-radius: var(--radius-md);
                padding: 16px;
                box-shadow: var(--shadow-md);
                margin-top: 12px;
            }

            .navbar-nav .nav-link {
                padding: 10px 14px !important;
            }

            .showcase-img img {
                height: 280px;
            }

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

            .footer-bottom {
                font-size: .78rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-badge {
                font-size: .75rem;
                padding: 4px 12px;
            }

            .hero-buttons .btn {
                width: 100%;
                text-align: center;
            }

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

            .stat-block .stat-num {
                font-size: 2rem;
            }

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

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

            .news-item {
                padding: 16px;
            }

            .news-badge {
                align-self: flex-start;
            }
        }

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1e3a8a;
            --accent: #f59e0b;
            --accent-2: #10b981;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --gray-bg: #f1f5f9;
            --text: #334155;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 40px rgba(2, 12, 27, .08);
            --shadow-sm: 0 4px 16px rgba(2, 12, 27, .06);
            --transition: all .25s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif; line-height: 1.7; color: var(--text); background: #fff; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
        .container-lg { max-width: 960px; }
        .container-narrow { max-width: 860px; }
        a:focus-visible, button:focus-visible { outline: 3px solid rgba(37, 99, 235, .45); outline-offset: 2px; }

        /* ===== Header ===== */
        .site-header { background: rgba(255,255,255,.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
        .site-header .navbar { padding: 12px 0; }
        .navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; font-weight: 800; color: var(--dark); }
        .navbar-brand:hover { color: var(--primary); }
        .brand-badge { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem; box-shadow: 0 4px 12px rgba(37,99,235,.35); }
        .brand-short { color: var(--accent); }
        .navbar-nav .nav-link { font-weight: 600; color: var(--text-light); padding: 8px 14px; border-radius: 8px; margin: 0 2px; font-size: .95rem; }
        .navbar-nav .nav-link:hover { color: var(--primary); background: rgba(37,99,235,.06); }
        .navbar-nav .nav-link.active { color: var(--primary); background: rgba(37,99,235,.1); }
        .btn-brand { background: var(--primary); color: #fff !important; border: none; border-radius: 10px; padding: 10px 22px; font-weight: 700; font-size: .9rem; box-shadow: 0 4px 14px rgba(37,99,235,.3); transition: var(--transition); }
        .btn-brand:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.4); }
        .btn-brand-sm { padding: 8px 18px; font-size: .85rem; }
        .navbar-toggler { border: none; box-shadow: none !important; }

        /* ===== Article Banner ===== */
        .article-banner { position: relative; background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #2563eb 100%); padding: 80px 0 60px; text-align: center; overflow: hidden; }
        .article-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: .15; }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .category-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25); color: #fff; border-radius: 30px; padding: 6px 18px; font-size: .85rem; font-weight: 600; margin-bottom: 18px; backdrop-filter: blur(6px); }
        .article-banner h1 { color: #fff; font-size: 2.6rem; font-weight: 800; line-height: 1.3; margin-bottom: 16px; max-width: 800px; margin-left: auto; margin-right: auto; }
        .article-meta { color: rgba(255,255,255,.85); font-size: .9rem; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }

        /* ===== Article Content ===== */
        .article-main { padding: 60px 0; background: var(--gray-bg); }
        .article-card { background: #fff; border-radius: 20px; padding: 48px; box-shadow: var(--shadow); border: 1px solid var(--border); }
        .article-body { font-size: 1.05rem; line-height: 2; color: var(--text); }
        .article-body h2, .article-body h3 { font-weight: 800; color: var(--dark); margin-top: 36px; margin-bottom: 16px; }
        .article-body h2 { font-size: 1.5rem; border-left: 4px solid var(--primary); padding-left: 14px; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body p { margin-bottom: 20px; }
        .article-body img { border-radius: 14px; margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 20px; }
        .article-body ul li { list-style: disc; margin-bottom: 8px; }
        .article-body ol li { list-style: decimal; margin-bottom: 8px; }
        .article-body blockquote { background: rgba(37,99,235,.06); border-left: 4px solid var(--primary); padding: 16px 20px; border-radius: 0 10px 10px 0; margin-bottom: 20px; color: var(--text-light); }
        .article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
        .tag { background: rgba(37,99,235,.08); color: var(--primary); padding: 6px 16px; border-radius: 20px; font-size: .8rem; font-weight: 600; }
        .tag:hover { background: rgba(37,99,235,.15); }

        /* ===== Not Found ===== */
        .not-found-box { text-align: center; padding: 60px 20px; }
        .not-found-box .icon-circle { width: 72px; height: 72px; border-radius: 50%; background: rgba(37,99,235,.1); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--primary); margin: 0 auto 20px; }
        .not-found-box h2 { font-weight: 800; color: var(--dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }

        /* ===== Related Section ===== */
        .related-section { padding: 60px 0; background: #fff; }
        .section-header { text-align: center; margin-bottom: 40px; }
        .section-header .section-tag { display: inline-block; background: rgba(37,99,235,.08); color: var(--primary); font-size: .8rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; padding: 6px 16px; border-radius: 30px; margin-bottom: 12px; }
        .section-header h2 { font-size: 2rem; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
        .section-header p { color: var(--text-light); max-width: 600px; margin: 0 auto; }
        .related-card { background: var(--gray-bg); border-radius: 16px; padding: 28px; border: 1px solid var(--border); transition: var(--transition); height: 100%; display: block; }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); background: #fff; }
        .related-card .related-cat { font-size: .78rem; color: var(--primary); font-weight: 700; margin-bottom: 8px; }
        .related-card h5 { font-weight: 700; color: var(--dark); font-size: 1rem; margin-bottom: 8px; line-height: 1.5; }
        .related-card p { font-size: .85rem; color: var(--text-light); margin-bottom: 12px; line-height: 1.7; }
        .related-card .related-date { font-size: .8rem; color: var(--text-light); display: flex; align-items: center; gap: 6px; }

        /* ===== CTA ===== */
        .article-cta { padding: 60px 0; background: linear-gradient(135deg, #0f172a, #1e3a8a); position: relative; overflow: hidden; text-align: center; }
        .article-cta::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: .1; }
        .article-cta .container { position: relative; z-index: 2; }
        .article-cta h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 14px; }
        .article-cta p { color: rgba(255,255,255,.85); max-width: 650px; margin: 0 auto 32px; font-size: 1.05rem; }
        .btn-cta { background: var(--accent); color: var(--dark) !important; font-weight: 800; border: none; border-radius: 12px; padding: 14px 36px; font-size: 1rem; box-shadow: 0 8px 24px rgba(245, 158, 11, .4); transition: var(--transition); }
        .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(245, 158, 11, .55); background: #fbbf24; }
        .btn-outline-light-custom { border: 2px solid rgba(255,255,255,.6); color: #fff; background: transparent; border-radius: 12px; padding: 12px 32px; font-weight: 600; margin-left: 12px; transition: var(--transition); }
        .btn-outline-light-custom:hover { background: rgba(255,255,255,.12); border-color: #fff; }

        /* ===== Footer ===== */
        .site-footer { background: var(--dark); color: rgba(255,255,255,.75); padding: 60px 0 0; }
        .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 800; color: #fff !important; margin-bottom: 16px; }
        .footer-desc { font-size: .9rem; line-height: 1.8; margin-bottom: 20px; color: rgba(255,255,255,.6); }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255,255,255,.65); font-size: .9rem; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); padding-left: 6px; }
        .footer-contact span { display: block; color: rgba(255,255,255,.6); font-size: .9rem; margin-bottom: 12px; }
        .footer-contact i { color: var(--accent); margin-right: 8px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 24px 0; margin-top: 48px; text-align: center; font-size: .85rem; color: rgba(255,255,255,.45); }
        .footer-bottom a { color: rgba(255,255,255,.6); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .navbar-nav { padding-top: 12px; }
            .navbar-nav .nav-link { padding: 10px 16px; }
            .header-cta { margin-top: 12px !important; }
            .article-banner h1 { font-size: 2.1rem; }
            .article-card { padding: 32px; }
        }
        @media (max-width: 768px) {
            .article-banner { padding: 60px 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-meta { gap: 12px; font-size: .82rem; }
            .article-card { padding: 24px; border-radius: 14px; }
            .article-body { font-size: 1rem; }
            .btn-cta { padding: 12px 28px; font-size: .95rem; }
            .btn-outline-light-custom { margin-left: 0; margin-top: 12px; display: inline-block; }
            .site-footer { padding: 40px 0 0; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .article-main { padding: 40px 0; }
            .article-card { padding: 20px 16px; }
            .article-banner h1 { font-size: 1.5rem; }
            .section-header h2 { font-size: 1.6rem; }
            .related-card { padding: 20px; }
        }

/* roulang page: category1 */
:root {
            --primary: #14213D;
            --primary-2: #1D3557;
            --accent: #FCA311;
            --accent-hover: #E89207;
            --accent-soft: #FFF4E0;
            --bg: #F5F7FA;
            --white: #FFFFFF;
            --text: #1F2937;
            --muted: #6B7280;
            --border: #E5E7EB;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(20, 33, 61, .08);
            --shadow-lg: 0 20px 45px rgba(20, 33, 61, .14);
            --transition: all .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

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

        .section {
            padding: 90px 0;
        }

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

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .5px;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            color: var(--primary);
            font-weight: 700;
            font-size: clamp(1.7rem, 3.2vw, 2.5rem);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 1.05rem;
        }

        .site-header {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(229, 231, 235, .8);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 4px 20px rgba(20, 33, 61, .05);
        }

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

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .3px;
        }

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

        .brand-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), #FFD166);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            box-shadow: 0 6px 16px rgba(252, 163, 17, .35);
        }

        .brand-short {
            color: var(--accent-hover);
        }

        .navbar-nav .nav-link {
            font-weight: 600;
            color: #334155;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: .95rem;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(252, 163, 17, .1);
        }

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

        .header-cta .btn-brand {
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 9px 22px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            box-shadow: 0 6px 16px rgba(20, 33, 61, .14);
        }

        .header-cta .btn-brand:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(252, 163, 17, .3);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 10px;
            box-shadow: none;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(252, 163, 17, .25);
        }

        .page-banner {
            position: relative;
            padding: 110px 0 80px;
            background: linear-gradient(135deg, rgba(20, 33, 61, .93), rgba(29, 53, 87, .88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 55%, rgba(20, 33, 61, .45));
            pointer-events: none;
        }

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

        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 22px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, .85);
        }

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

        .breadcrumb-custom i {
            font-size: .7rem;
        }

        .page-banner h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

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

        .page-banner .lead {
            font-size: 1.1rem;
            max-width: 640px;
            color: rgba(255, 255, 255, .86);
            margin-bottom: 32px;
        }

        .banner-actions .btn-light-custom {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            border: none;
            border-radius: 50px;
            padding: 12px 30px;
            box-shadow: 0 10px 28px rgba(252, 163, 17, .4);
            transition: var(--transition);
        }

        .banner-actions .btn-light-custom:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(255, 255, 255, .18);
        }

        .banner-actions .btn-outline-custom {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .45);
            border-radius: 50px;
            padding: 12px 28px;
            transition: var(--transition);
        }

        .banner-actions .btn-outline-custom:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .feature-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 34px 28px;
            height: 100%;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), #FFD166);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(252, 163, 17, .4);
        }

        .feature-item:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            background: var(--accent-soft);
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-hover);
            font-size: 1.4rem;
            margin-bottom: 18px;
        }

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

        .feature-item p {
            color: var(--muted);
            font-size: .95rem;
            margin-bottom: 0;
        }

        .topic-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            text-align: left;
        }

        .topic-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(252, 163, 17, .5);
        }

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

        .topic-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .topic-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(20, 33, 61, .3), transparent 60%);
        }

        .card-body-custom {
            padding: 26px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body-custom h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-body-custom p {
            color: var(--muted);
            font-size: .92rem;
            flex: 1;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-hover);
            font-weight: 600;
            font-size: .9rem;
        }

        .card-link i {
            transition: transform .25s ease;
        }

        .card-link:hover {
            color: var(--primary);
        }

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

        .step-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 30px 24px;
            position: relative;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .step-num {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent), #FFD166);
            color: var(--primary);
            font-weight: 800;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 8px 20px rgba(252, 163, 17, .28);
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--muted);
            font-size: .93rem;
            margin-bottom: 0;
        }

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

        .guide-main-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            height: 100%;
            min-height: 380px;
        }

        .guide-main-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .guide-main-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(20, 33, 61, .55), transparent 45%);
        }

        .guide-main-img .guide-img-text {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 2;
            color: #fff;
        }

        .guide-main-img .guide-img-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

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

        .guide-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .guide-list li:hover {
            padding-left: 6px;
        }

        .guide-list .guide-date {
            flex-shrink: 0;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: .8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            white-space: nowrap;
        }

        .guide-list a {
            flex: 1;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.4;
        }

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

        .guide-list .guide-meta {
            color: var(--muted);
            font-size: .85rem;
            margin-top: 4px;
        }

        .data-section {
            background: linear-gradient(135deg, #101B2E 0%, var(--primary-2) 100%);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: rgba(252, 163, 17, .12);
            border-radius: 50%;
        }

        .data-item {
            text-align: center;
            padding: 30px 16px;
        }

        .data-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 10px;
            font-family: "Segoe UI", sans-serif;
        }

        .data-label {
            color: rgba(255, 255, 255, .78);
            font-size: .95rem;
            letter-spacing: 1px;
        }

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

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

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 14px !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--white);
            box-shadow: 0 4px 14px rgba(20, 33, 61, .04);
        }

        .accordion-button {
            font-weight: 700;
            color: var(--primary);
            padding: 20px 24px;
            font-size: 1rem;
            background: var(--white);
        }

        .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(252, 163, 17, .22);
            border-color: rgba(252, 163, 17, .4);
        }

        .accordion-button::after {
            background-size: 1rem;
        }

        .accordion-body {
            color: var(--muted);
            font-size: .96rem;
            padding: 18px 24px 22px;
            line-height: 1.8;
        }

        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 30%;
            width: 280px;
            height: 280px;
            background: rgba(252, 163, 17, .1);
            border-radius: 50%;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .78);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 30px;
        }

        .cta-actions .btn-brand {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            border-radius: 50px;
            padding: 12px 32px;
            border: none;
            box-shadow: 0 10px 28px rgba(252, 163, 17, .35);
            transition: var(--transition);
        }

        .cta-actions .btn-brand:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
        }

        .cta-actions .btn-ghost {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .45);
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
            transition: var(--transition);
        }

        .cta-actions .btn-ghost:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
        }

        .site-footer {
            background: #0B1322;
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-desc {
            font-size: .95rem;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 22px;
            color: rgba(255, 255, 255, .6);
        }

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

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            font-size: .92rem;
            transition: var(--transition);
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: .92rem;
            color: rgba(255, 255, 255, .65);
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            margin-top: 50px;
            font-size: .85rem;
            color: rgba(255, 255, 255, .45);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 70px 0;
            }

            .page-banner {
                padding: 90px 0 65px;
            }

            .data-num {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-nav {
                padding: 14px 0 4px;
            }

            .navbar-nav .nav-link {
                padding: 10px 16px;
            }

            .header-cta {
                margin-top: 8px;
                padding-bottom: 12px;
            }

            .section-head {
                margin-bottom: 36px;
            }

            .topic-card .card-img-wrap {
                height: 170px;
            }

            .guide-main-img {
                min-height: 260px;
                margin-bottom: 24px;
            }

            .guide-main-img img {
                position: relative;
            }

            .data-item {
                padding: 20px 8px;
            }

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

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }

            .page-banner .lead {
                font-size: 1rem;
            }

            .banner-actions .btn-light-custom,
            .banner-actions .btn-outline-custom {
                padding: 10px 20px;
                font-size: .88rem;
            }

            .section {
                padding: 56px 0;
            }

            .section-head h2 {
                font-size: 1.45rem;
            }

            .feature-item {
                padding: 24px 20px;
            }

            .step-card {
                padding: 24px 18px;
            }

            .guide-list .guide-date {
                display: none;
            }

            .data-num {
                font-size: 1.7rem;
            }

            .cta-section h2 {
                font-size: 1.35rem;
            }

            .cta-actions .btn-brand,
            .cta-actions .btn-ghost {
                padding: 10px 22px;
                font-size: .9rem;
            }

            .footer-bottom .d-flex {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #6c5ce7;
            --primary-light: #a29bfe;
            --primary-dark: #5a4bd1;
            --accent: #fd79a8;
            --accent-light: #ffe3ed;
            --dark: #2d2a3d;
            --dark-2: #3a3650;
            --bg: #f6f5fc;
            --bg-white: #ffffff;
            --bg-dark: #1f1d2b;
            --text: #3d3a4d;
            --text-light: #7a7891;
            --border: #e6e4f2;
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(45, 42, 61, 0.06);
            --shadow: 0 8px 30px rgba(45, 42, 61, 0.1);
            --shadow-lg: 0 16px 50px rgba(45, 42, 61, 0.14);
            --font-size: 16px;
            --line-height: 1.7;
            --container-max: 1200px;
            --space-xl: 90px;
            --space-lg: 60px;
            --space-md: 40px;
            --space-sm: 24px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: var(--font-size);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
        /* header */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 10px 0;
            transition: box-shadow var(--transition);
        }
        .site-header .navbar {
            padding: 0;
            min-height: 64px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--dark) !important;
            letter-spacing: 0.02em;
        }
        .navbar-brand .brand-badge {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
        }
        .navbar-brand .brand-short {
            color: var(--primary);
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-item .nav-link {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text);
            padding: 8px 18px;
            border-radius: 40px;
            transition: all var(--transition);
            position: relative;
        }
        .navbar-nav .nav-item .nav-link:hover,
        .navbar-nav .nav-item .nav-link.active {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.08);
        }
        .navbar-nav .nav-item .nav-link.active {
            color: var(--primary-dark);
            background: rgba(108, 92, 231, 0.14);
            font-weight: 700;
        }
        .header-cta .btn-brand {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border: none;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.3);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .header-cta .btn-brand:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
        }
        .navbar-toggler {
            border: none;
            width: 46px;
            height: 46px;
            background: rgba(108, 92, 231, 0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
        }
        /* hero banner */
        .page-banner {
            position: relative;
            padding: 100px 0 100px;
            background: linear-gradient(135deg, #1f1d2b 0%, #2d2a3d 60%, #3a3650 100%);
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: 0.28;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.45) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 92, 231, 0.25);
            border: 1px solid rgba(108, 92, 231, 0.4);
            color: var(--primary-light);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .banner-badge i {
            color: var(--accent);
        }
        .page-banner h1 {
            color: #ffffff;
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .page-banner h1 .accent-text {
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .banner-lead {
            color: rgba(255, 255, 255, 0.72);
            font-size: 1.12rem;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-light-brand {
            background: #fff;
            color: var(--dark) !important;
            padding: 12px 30px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.98rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
        }
        .btn-light-brand:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
            background: var(--primary-light);
            color: #fff !important;
        }
        .btn-outline-light-b {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #fff !important;
            padding: 11px 28px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-light-b:hover {
            border-color: var(--accent);
            color: var(--accent) !important;
            background: rgba(255, 255, 255, 0.06);
        }
        .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .banner-meta-item {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .banner-meta-item i {
            color: var(--accent);
            font-size: 1rem;
        }
        /* breadcrumb */
        .breadcrumb-area {
            padding: 18px 0;
            background: #f8f7fd;
            border-bottom: 1px solid var(--border);
            font-size: 0.92rem;
        }
        .breadcrumb-area .breadcrumb {
            margin: 0;
        }
        .breadcrumb-area .breadcrumb-item + .breadcrumb-item::before {
            content: "/";
            color: #aaa;
        }
        /* section common */
        .section-block {
            padding: var(--space-lg) 0;
            position: relative;
        }
        .section-block.bg-white {
            background: var(--bg-white);
        }
        .section-block.bg-light-purple {
            background: #f0edfa;
        }
        .section-block.bg-dark-section {
            background: var(--bg-dark);
            color: #ffffff;
        }
        .section-head {
            text-align: center;
            margin-bottom: 52px;
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-head .eyebrow {
            display: inline-block;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding: 0 30px;
        }
        .section-head .eyebrow::before,
        .section-head .eyebrow::after {
            content: "";
            position: absolute;
            top: 50%;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary-light));
        }
        .section-head .eyebrow::before {
            left: 0;
        }
        .section-head .eyebrow::after {
            right: 0;
            background: linear-gradient(270deg, transparent, var(--primary-light));
        }
        .section-head h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 1.02rem;
            line-height: 1.75;
        }
        .section-head.light h2 {
            color: #fff;
        }
        .section-head.light p {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-head.light .eyebrow {
            color: var(--primary-light);
        }
        /* guide navigation cards */
        .guide-nav-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 30px 26px;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-nav-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .guide-nav-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .guide-nav-card:hover::before {
            opacity: 1;
        }
        .guide-nav-card .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            background: rgba(108, 92, 231, 0.1);
            color: var(--primary);
        }
        .guide-nav-card:nth-child(2) .icon-box {
            background: rgba(253, 121, 168, 0.12);
            color: var(--accent);
        }
        .guide-nav-card:nth-child(3) .icon-box {
            background: rgba(45, 206, 137, 0.12);
            color: #2dce89;
        }
        .guide-nav-card:nth-child(4) .icon-box {
            background: rgba(51, 153, 255, 0.1);
            color: #3399ff;
        }
        .guide-nav-card h5 {
            font-weight: 700;
            color: var(--dark);
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .guide-nav-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .guid-card-link {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .guide-nav-card:hover .guid-card-link {
            gap: 10px;
            color: var(--primary-dark);
        }
        /* feature list */
        .feature-list-wrap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .feature-item {
            display: flex;
            gap: 18px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px 26px;
            transition: all var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateY(-4px);
        }
        .feature-item .feature-icon {
            width: 52px;
            height: 52px;
            min-width: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 6px 16px rgba(108, 92, 231, 0.3);
        }
        .feature-item h6 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--dark);
        }
        .feature-item p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* guide cards */
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(108, 92, 231, 0.2);
        }
        .guide-card-img {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.05);
        }
        .guide-card-img .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(6px);
            color: var(--primary-dark);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        .guide-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-body h5 {
            font-weight: 700;
            color: var(--dark);
            font-size: 1.05rem;
            line-height: 1.5;
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .guide-card:hover .guide-card-body h5 {
            color: var(--primary);
        }
        .guide-card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            color: #9b9aad;
            font-size: 0.82rem;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .guide-card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card-meta i {
            font-size: 0.85rem;
        }
        /* steps */
        .steps-wrap {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .steps-wrap::before {
            content: "";
            position: absolute;
            left: 19px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-light), var(--accent));
            border-radius: 2px;
        }
        .step-item {
            position: relative;
            margin-bottom: 36px;
            padding: 28px 30px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
            border-left: 3px solid var(--primary);
        }
        .step-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(6px);
            border-left-color: var(--accent);
        }
        .step-number {
            position: absolute;
            left: -40px;
            top: 24px;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
        }
        .step-item h6 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* faq */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.35);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 26px;
            cursor: pointer;
            font-weight: 600;
            color: var(--dark);
            font-size: 1rem;
            gap: 16px;
            transition: all var(--transition);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: transform var(--transition);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 26px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.show .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }
        .faq-item.show .faq-question i {
            transform: rotate(180deg);
        }
        /* cta */
        .cta-section {
            background: linear-gradient(135deg, #1f1d2b 0%, #2d2a3d 100%);
            border-radius: 28px;
            padding: 70px 60px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.4), transparent 70%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            left: -30px;
            bottom: -80px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(253, 121, 168, 0.25), transparent 70%);
            border-radius: 50%;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 560px;
            margin: 0 auto;
        }
        .cta-section h3 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 44px;
            font-size: 1rem;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
            transition: all var(--transition);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(108, 92, 231, 0.5);
        }
        /* not found for articles */
        .article-list-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            height: 100%;
        }
        .article-list-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(108, 92, 231, 0.2);
        }
        .article-list-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .article-list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-list-item:hover .article-list-img img {
            transform: scale(1.06);
        }
        .article-list-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.2), transparent 60%);
        }
        .article-list-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-list-body .badge-cat {
            align-self: flex-start;
            background: rgba(108, 92, 231, 0.1);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 12px;
        }
        .article-list-body h5 {
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--dark);
            transition: color var(--transition);
        }
        .article-list-body p {
            color: var(--text-light);
            font-size: 0.9rem;
            flex: 1;
            margin-bottom: 14px;
        }
        .article-list-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #aaa;
            font-size: 0.82rem;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        /* pagination */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .page-link-custom {
            width: 44px;
            height: 44px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            color: var(--text);
            transition: all var(--transition);
        }
        .page-link-custom:hover,
        .page-link-custom.active {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 6px 16px rgba(108, 92, 231, 0.3);
        }
        /* footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 30px;
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff !important;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .site-footer .footer-brand .brand-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.95rem;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.5);
            max-width: 360px;
            margin-bottom: 22px;
            font-size: 0.9rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
            font-size: 0.88rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
        }
        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 50px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        /* responsive */
        @media (max-width: 1024px) {
            :root {
                --space-xl: 70px;
                --space-lg: 50px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
            .section-head h2 {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-xl: 50px;
                --space-lg: 40px;
            }
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow-lg);
                padding: 16px 20px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar-nav {
                gap: 0;
            }
            .navbar-nav .nav-link {
                border-radius: 10px;
                padding: 10px 14px;
                margin: 2px 0;
            }
            .header-cta {
                background: linear-gradient(135deg, var(--primary), var(--accent));
                border-radius: 14px;
                padding: 10px;
                margin-left: 0 !important;
                margin-top: 14px !important;
                text-align: center;
            }
            .header-cta .btn-brand {
                box-shadow: none;
                color: #fff;
                background: transparent;
                padding: 0;
                font-weight: 600;
            }
            .header-cta .btn-brand:hover {
                transform: none;
            }
            .page-banner h1 {
                font-size: 2.1rem;
                line-height: 1.3;
            }
            .page-banner {
                padding: 70px 0 70px;
            }
            .section-head h2 {
                font-size: 1.65rem;
            }
            .feature-list-wrap {
                grid-template-columns: 1fr;
            }
            .steps-wrap {
                padding-left: 32px;
            }
            .steps-wrap::before {
                left: 15px;
            }
            .step-number {
                left: -32px;
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .cta-section {
                padding: 40px 24px;
                border-radius: 20px;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .banner-lead {
                font-size: 0.98rem;
            }
            .banner-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .banner-actions .btn {
                text-align: center;
                justify-content: center;
            }
            .banner-meta {
                gap: 14px;
                justify-content: flex-start;
            }
            .section-head h2 {
                font-size: 1.45rem;
            }
            .guide-nav-card {
                padding: 24px 20px;
            }
            .feature-item {
                padding: 20px 18px;
                flex-direction: column;
                gap: 12px;
            }
            .feature-item .feature-icon {
                width: 46px;
                height: 46px;
                min-width: 46px;
                font-size: 1rem;
            }
            .step-item {
                padding: 20px 18px;
            }
            .cta-section {
                padding: 36px 20px;
            }
        }