/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f5a623;
            --primary-rgb: 245, 166, 35;
            --primary-dark: #d4880b;
            --secondary: #3b82f6;
            --accent: #10b981;
            --bg-dark: #0a0e1a;
            --bg-dark-2: #101a28;
            --bg-dark-3: #162130;
            --bg-card: #121c2b;
            --text-main: #e9edf3;
            --text-muted: #9aa7b8;
            --text-weak: #6b7a8d;
            --border-light: rgba(255, 255, 255, .07);
            --border-muted: rgba(255, 255, 255, .05);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, .35);
            --shadow-md: 0 16px 48px rgba(0, 0, 0, .25);
            --shadow-sm: 0 6px 24px rgba(0, 0, 0, .15);
            --spacing-section: 90px;
            --font-primary: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-primary);
            background: var(--bg-dark);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        section[id] {
            scroll-margin-top: 90px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 18px 0;
            background: rgba(10, 14, 26, .4);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, .05);
            transition: all .35s ease;
        }

        .site-header.scrolled {
            padding: 10px 0;
            background: rgba(10, 14, 26, .92);
            border-bottom-color: rgba(255, 255, 255, .1);
            box-shadow: 0 10px 40px rgba(0, 0, 0, .3);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-logo .brand-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0a0e1a;
            border-radius: 12px;
            font-size: 20px;
            box-shadow: 0 6px 20px rgba(245, 166, 35, .3);
        }

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

        .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all .3s;
            position: relative;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(245, 166, 35, .08);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-cta {
            padding: 10px 24px !important;
            border-radius: 10px;
            font-weight: 600;
        }

        .navbar-toggler {
            border-color: rgba(255, 255, 255, .25);
            border-radius: 8px;
            padding: 8px 12px;
            background: rgba(255, 255, 255, .05);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(245, 166, 35, .3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 180px 0 110px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            will-change: transform;
            animation: heroBg 22s ease-in-out infinite alternate;
        }

        @keyframes heroBg {
            from {
                transform: scale(1);
            }
            to {
                transform: scale(1.06);
            }
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(10, 14, 26, .55) 0%, rgba(10, 14, 26, .78) 55%, var(--bg-dark) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(245, 166, 35, .12);
            border: 1px solid rgba(245, 166, 35, .3);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .5px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero h1 {
            font-size: 58px;
            font-weight: 800;
            line-height: 1.15;
            margin: 24px 0 18px;
            letter-spacing: 1px;
        }

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

        .hero-lead {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 10px;
            padding-top: 40px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
            min-width: 150px;
        }

        .stat-num {
            display: block;
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-color: var(--primary);
            color: #0a0e1a;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 12px;
            transition: all .3s;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(245, 166, 35, .3);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-color: var(--primary);
            color: #0a0e1a;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 16px rgba(245, 166, 35, .25);
        }

        .btn-outline-light {
            border-radius: 12px;
            padding: 12px 28px;
            font-weight: 600;
            color: var(--text-main);
            border-color: rgba(255, 255, 255, .35);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(255, 255, 255, .6);
            color: var(--text-main);
            transform: translateY(-2px);
        }

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

        .section-alt {
            background: var(--bg-dark-2);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .section-tag {
            display: inline-block;
            background: rgba(245, 166, 35, .12);
            border: 1px solid rgba(245, 166, 35, .25);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== 介绍板块 ===== */
        .intro-media {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 26, .9));
        }

        .intro-float-card {
            position: absolute;
            left: 24px;
            bottom: 24px;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(10, 14, 26, .8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 14px 20px;
        }

        .intro-float-card i {
            font-size: 28px;
            color: var(--primary);
        }

        .intro-float-card strong {
            font-size: 15px;
            display: block;
            color: var(--text-main);
        }

        .intro-float-card span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .intro-list {
            padding: 0;
            margin: 24px 0 0;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-main);
            margin-bottom: 16px;
            font-size: 15px;
        }

        .intro-list li i {
            color: var(--primary);
            font-size: 18px;
            margin-top: 2px;
        }

        /* ===== 特色卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            height: 100%;
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            opacity: 0;
            transition: opacity .3s;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            border-color: rgba(245, 166, 35, .3);
            box-shadow: var(--shadow-md);
        }

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

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(245, 166, 35, .12);
            color: var(--primary);
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: transform .3s;
        }

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

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 14.5px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 指南卡片 ===== */
        .guide-card {
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            min-height: 300px;
            padding: 28px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all .35s ease;
            color: var(--text-main);
        }

        .guide-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, .15) 0%, rgba(10, 14, 26, .93) 100%);
            z-index: 1;
            transition: all .3s;
        }

        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(245, 166, 35, .3);
            color: var(--text-main);
        }

        .guide-card .guide-content {
            position: relative;
            z-index: 2;
        }

        .guide-card .badge-guide {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 2;
            background: rgba(245, 166, 35, .9);
            color: #0a0e1a;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: .5px;
        }

        .guide-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

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

        .guide-link i {
            margin-left: 4px;
            font-size: 12px;
            transition: transform .3s;
        }

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

        /* ===== 资讯列表 ===== */
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 30px;
            height: 100%;
            transition: all .3s ease;
        }

        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 166, 35, .25);
            box-shadow: var(--shadow-sm);
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 14px;
        }

        .news-cat {
            display: inline-block;
            background: rgba(245, 166, 35, .14);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-weak);
        }

        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .news-card h3 a {
            color: var(--text-main);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

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

        .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .read-more i {
            margin-left: 4px;
            transition: transform .3s;
        }

        .read-more:hover i {
            transform: translateX(4px);
        }

        .empty-tip {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 15px;
        }

        .empty-tip i {
            font-size: 32px;
            color: var(--text-weak);
            margin-bottom: 12px;
        }

        .empty-tip p {
            margin-bottom: 0;
        }

        /* ===== 步骤流程 ===== */
        .step-card {
            text-align: center;
            padding: 30px 18px;
            position: relative;
            transition: transform .3s;
        }

        .step-card:hover {
            transform: translateY(-4px);
        }

        .step-num {
            width: 58px;
            height: 58px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0a0e1a;
            font-size: 20px;
            font-weight: 800;
            border-radius: 16px;
            box-shadow: 0 12px 28px rgba(245, 166, 35, .3);
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        .step-card::after {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -8px;
            top: 40%;
            transform: translateY(-50%);
            font-size: 22px;
            color: rgba(255, 255, 255, .15);
            z-index: 2;
        }

        .step-card:last-child::after {
            display: none;
        }

        /* ===== FAQ ===== */
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none !important;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f5a623'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            background-size: 14px;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(245, 166, 35, .08);
            color: var(--primary);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(245, 166, 35, .25) !important;
        }

        .accordion-body {
            padding: 0 24px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-band {
            background-image: linear-gradient(135deg, rgba(10, 14, 26, .88), rgba(16, 26, 40, .82)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(245, 166, 35, .25);
            border-radius: var(--radius-xl);
            padding: 70px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(245, 166, 35, .15), transparent 70%);
            border-radius: 50%;
        }

        .cta-band h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-main);
        }

        .cta-band>p {
            color: var(--text-muted);
            font-size: 17px;
            margin-bottom: 36px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .cta-contact {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
        }

        .cta-contact i {
            color: var(--primary);
            margin-right: 6px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto 40px;
        }

        .form-control {
            background: rgba(10, 14, 26, .6);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            border-radius: var(--radius-md);
            padding: 12px 20px;
        }

        .form-control::placeholder {
            color: var(--text-weak);
        }

        .form-control:focus {
            background: rgba(10, 14, 26, .8);
            border-color: var(--primary);
            color: var(--text-main);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, .2);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #060912;
            border-top: 1px solid var(--border-light);
            padding: 65px 0 0;
            color: var(--text-muted);
            font-size: 15px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0a0e1a;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 16px;
        }

        .footer-social a:hover {
            background: rgba(245, 166, 35, .12);
            border-color: rgba(245, 166, 35, .3);
            color: var(--primary);
        }

        .site-footer h5 {
            color: var(--text-main);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-links a {
            display: block;
            padding: 5px 0;
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .footer-contact p {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 20px;
            margin-right: 6px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            margin-top: 50px;
            padding: 22px 0;
            text-align: center;
            font-size: 13.5px;
            color: var(--text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .hero h1 {
                font-size: 48px;
            }
            .guide-card {
                min-height: 280px;
            }
        }

        @media (max-width: 991px) {
            :root {
                --spacing-section: 70px;
            }
            .hero {
                padding: 160px 0 80px;
            }
            .hero h1 {
                font-size: 42px;
            }
            .hero-stats {
                gap: 30px;
            }
            .stat-num {
                font-size: 34px;
            }
            .navbar-collapse {
                background: rgba(10, 14, 26, .96);
                border: 1px solid var(--border-light);
                border-radius: 16px;
                padding: 20px;
                margin-top: 16px;
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
            }
            .navbar-nav {
                align-items: flex-start;
            }
            .navbar-nav .nav-link {
                padding: 12px 16px !important;
                width: 100%;
            }
            .header-actions {
                width: 100%;
            }
            .header-actions .btn {
                width: 100%;
                margin-top: 12px;
            }
            .section-title {
                font-size: 30px;
            }
            .intro-media img {
                height: 340px;
            }
            .step-card::after {
                display: none;
            }
            .step-card {
                background: var(--bg-card);
                border: 1px solid var(--border-light);
                border-radius: var(--radius-md);
                height: 100%;
                padding: 26px 20px;
            }
            .cta-band {
                padding: 50px 30px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --spacing-section: 60px;
            }
            .hero {
                min-height: auto;
                padding: 130px 0 70px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 260px;
            }
            .hero-stats {
                gap: 20px;
            }
            .stat-num {
                font-size: 30px;
            }
            .stat-label {
                font-size: 13px;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .footer-top .col-lg-4 {
                margin-bottom: 20px;
            }
            .cta-contact {
                flex-direction: column;
                gap: 12px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn {
                width: 100%;
            }
        }

        @media (max-width: 575px) {
            .hero h1 {
                font-size: 28px;
            }
            .hero-lead {
                font-size: 15px;
            }
            .hero-stats {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }
            .stat-item {
                min-width: auto;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .section-tag {
                font-size: 12px;
                padding: 5px 14px;
            }
            .section-desc {
                font-size: 15px;
            }
            .intro-media img {
                height: 260px;
            }
            .cta-band {
                padding: 40px 20px;
            }
            .cta-band h2 {
                font-size: 26px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .news-card {
                padding: 22px 20px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6C3EF5;
            --primary-light: #8B5CF6;
            --primary-dark: #4B1FB8;
            --secondary: #00D4AA;
            --accent: #FF6B2C;
            --bg-dark: #0A0714;
            --bg-darker: #070510;
            --bg-light: #F4F2FB;
            --text-light: #F8F7FC;
            --text-muted: #A29BB8;
            --border-light: rgba(255,255,255,0.12);
            --border-dark: rgba(108,62,245,0.14);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(108,62,245,0.08);
            --shadow-md: 0 10px 36px rgba(108,62,245,0.15);
            --shadow-lg: 0 18px 50px rgba(108,62,245,0.22);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-light);
            color: #1A1430;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 18px 0;
            background: rgba(10, 7, 20, 0.55);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(10, 7, 20, 0.92);
            padding: 12px 0;
            box-shadow: 0 8px 30px rgba(0,0,0,0.3);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.3px;
        }

        .brand-logo:hover {
            color: var(--secondary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 4px 14px rgba(108,62,245,0.4);
        }

        .site-header .navbar-nav {
            gap: 26px;
        }

        .site-header .nav-link {
            color: rgba(255,255,255,0.72);
            font-weight: 500;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
            letter-spacing: 0.2px;
        }

        .site-header .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 0;
            height: 2px;
            background: var(--secondary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .site-header .nav-link:hover {
            color: #fff;
        }

        .site-header .nav-link:hover::after {
            width: 100%;
        }

        .site-header .nav-link.active {
            color: #fff;
            font-weight: 600;
        }

        .site-header .nav-link.active::after {
            width: 100%;
            background: var(--secondary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-cta {
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border: none;
            border-radius: 30px;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 18px rgba(108,62,245,0.35);
            transition: var(--transition);
        }

        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(108,62,245,0.45);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }

        .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.3);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(135deg, rgba(10,7,20,0.9), rgba(75,31,184,0.7)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--text-light);
            overflow: hidden;
        }

        .page-banner::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -20px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0,212,170,0.15), transparent 70%);
            border-radius: 50%;
        }

        .page-banner .bracket-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.18);
            backdrop-filter: blur(10px);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.85);
            margin-bottom: 22px;
        }

        .page-banner .bracket-label i {
            color: var(--secondary);
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 span {
            background: linear-gradient(90deg, var(--secondary), #7EE8FA);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .page-banner .banner-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 620px;
            margin-bottom: 32px;
        }

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

        .btn-light-rounded {
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.3);
            color: #fff;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .btn-light-rounded:hover {
            background: rgba(255,255,255,0.25);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 90px 0;
        }

        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(108,62,245,0.08);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-subtitle i {
            font-size: 0.8rem;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #1A1430;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-desc {
            color: #6B6480;
            font-size: 1.05rem;
            max-width: 680px;
            line-height: 1.8;
        }

        .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .section-header {
            margin-bottom: 50px;
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            height: 100%;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108,62,245,0.3);
        }

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

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(108,62,245,0.12), rgba(0,212,170,0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #1A1430;
        }

        .feature-card p {
            color: #6B6480;
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* ===== Guide Category Cards ===== */
        .guide-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

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

        .guide-card .guide-image {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

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

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

        .guide-card .guide-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(108,62,245,0.9);
            color: #fff;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .guide-card .guide-content {
            padding: 26px 24px 30px;
        }

        .guide-card .guide-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #1A1430;
            transition: var(--transition);
        }

        .guide-card .guide-content h3 a:hover {
            color: var(--primary);
        }

        .guide-card .guide-content p {
            color: #6B6480;
            font-size: 0.92rem;
            margin-bottom: 18px;
            line-height: 1.8;
        }

        .guide-card .guide-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid #F0EDF7;
        }

        .guide-card .guide-meta {
            font-size: 0.82rem;
            color: #9A93AD;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .guide-card .guide-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .guide-card .guide-link i {
            font-size: 0.75rem;
            transition: transform 0.3s;
        }

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

        /* ===== Steps Section ===== */
        .steps-section {
            background: linear-gradient(135deg, #0A0714, #1A0F33);
            color: var(--text-light);
            position: relative;
            overflow: hidden;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            top: -80px;
            left: 20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108,62,245,0.18), transparent 70%);
            border-radius: 50%;
        }

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

        .steps-section .section-desc {
            color: rgba(255,255,255,0.65);
        }

        .step-item {
            text-align: center;
            padding: 30px 24px;
            position: relative;
        }

        .step-number {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 8px 24px rgba(108,62,245,0.4);
            position: relative;
            z-index: 1;
        }

        .step-item::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            top: 40px;
            right: -24px;
            color: rgba(255,255,255,0.25);
            font-size: 1rem;
            z-index: 0;
        }

        .step-item:last-child::after {
            display: none;
        }

        .step-item h4 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .step-item p {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 220px;
            margin: 0 auto;
        }

        /* ===== Content Cards / Article List ===== */
        .article-item {
            background: #fff;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 24px;
            padding: 24px;
            margin-bottom: 20px;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .article-item .article-thumb {
            width: 200px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
        }

        .article-item .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .article-item .article-body .tag-list {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
        }

        .tag-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(108,62,245,0.08);
            color: var(--primary);
            border: 1px solid rgba(108,62,245,0.15);
        }

        .tag-badge.green {
            background: rgba(0,212,170,0.1);
            color: #00A989;
            border-color: rgba(0,212,170,0.2);
        }

        .article-item .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .article-item .article-body h3 a {
            color: #1A1430;
        }

        .article-item .article-body h3 a:hover {
            color: var(--primary);
        }

        .article-item .article-body p {
            color: #6B6480;
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-item .article-meta {
            font-size: 0.82rem;
            color: #9A93AD;
            display: flex;
            gap: 16px;
            margin-top: auto;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: #fff;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .stat-item {
            text-align: center;
            padding: 30px 20px;
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .stat-item p {
            color: #6B6480;
            font-size: 0.95rem;
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #F4F2FB;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 0;
            margin-bottom: 16px;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(108,62,245,0.3);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 22px 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: #1A1430;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: rgba(108,62,245,0.02);
        }

        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: transform 0.3s;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 26px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            padding: 0 26px 22px;
            max-height: 300px;
        }

        .faq-answer p {
            color: #6B6480;
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-band {
            background: linear-gradient(135deg, #6C3EF5, #4B1FB8);
            border-radius: 28px;
            padding: 60px 50px;
            position: relative;
            overflow: hidden;
            margin: 80px 0;
            box-shadow: 0 20px 60px rgba(108,62,245,0.35);
        }

        .cta-band::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
        }

        .cta-band::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 10%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(0,212,170,0.15);
        }

        .cta-band h2 {
            color: #fff;
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-band p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .cta-band .btn-white {
            background: #fff;
            color: var(--primary);
            border: none;
            padding: 14px 34px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(0,0,0,0.15);
        }

        .cta-band .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(0,0,0,0.22);
        }

        .cta-band .btn-outline-white {
            background: rgba(255,255,255,0.1);
            border: 1.5px solid rgba(255,255,255,0.4);
            color: #fff;
            padding: 13px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            margin-left: 12px;
            backdrop-filter: blur(6px);
        }

        .cta-band .btn-outline-white:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 80px 0 0;
            color: rgba(255,255,255,0.7);
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .site-footer .footer-bar {
            background: var(--bg-darker);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 4px 18px rgba(108,62,245,0.4);
        }

        .site-footer .footer-brand {
            margin-bottom: 22px;
        }

        .site-footer p {
            color: rgba(255,255,255,0.55);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }

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

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.06);
        }

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

        .site-footer h5 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 22px;
            position: relative;
        }

        .site-footer h5::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 30px;
            height: 2px;
            background: var(--secondary);
            border-radius: 4px;
        }

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

        .footer-links a {
            color: rgba(255,255,255,0.55);
            font-size: 0.95rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.6rem;
            color: var(--secondary);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 5px;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .footer-contact p i {
            color: var(--secondary);
            font-size: 0.9rem;
            width: 18px;
        }

        .footer-bottom {
            margin-top: 60px;
            padding: 24px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
        }

        .footer-bottom p {
            margin-bottom: 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Mobile Responsive ===== */
        @media (max-width: 1024px) {
            .page-banner {
                padding: 140px 0 60px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
            .cta-band {
                padding: 45px 35px;
            }
        }

        @media (max-width: 768px) {
            .logo-showcase {
                padding: 60px 0;
                min-height: auto;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-desc {
                font-size: 1rem;
            }
            .section-padding {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .step-item::after {
                display: none;
            }
            .article-item {
                flex-direction: column;
                gap: 16px;
            }
            .article-item .article-thumb {
                width: 100%;
                height: 200px;
            }
            .article-item .article-body p {
                -webkit-line-clamp: 3;
            }
            .cta-band {
                padding: 35px 25px;
            }
            .cta-band h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 576px) {
            .brand-logo {
                font-size: 1.1rem;
            }
            .site-header {
                padding: 12px 0;
            }
            .page-banner {
                padding: 120px 0 50px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .header-actions {
                display: none;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .guide-card .guide-image {
                height: 180px;
            }
            .guide-card .guide-content {
                padding: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 18px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 18px;
            }
            .cta-band {
                padding: 30px 20px;
                border-radius: 18px;
            }
            .cta-band .btn-outline-white {
                margin-left: 0;
                margin-top: 12px;
            }
            .site-footer {
                padding-top: 60px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0b5ed7;
            --primary-dark: #083d8a;
            --primary-light: #eaf1ff;
            --secondary: #00c2ff;
            --accent: #ff9f1c;
            --dark-bg: #0a0e1a;
            --dark-bg-2: #111827;
            --light-bg: #f5f8fd;
            --surface: #ffffff;
            --text: #1a2333;
            --text-muted: #64748b;
            --border: rgba(11, 94, 215, 0.1);
            --radius: 14px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(10, 20, 40, 0.06);
            --shadow: 0 12px 36px rgba(10, 20, 40, 0.1);
            --shadow-lg: 0 24px 60px rgba(10, 20, 40, 0.16);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .btn {
            border-radius: 50rem;
            padding: 10px 26px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(11, 94, 215, 0.18);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, #0a4fbe, #072c66);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 94, 215, 0.32);
            outline: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.75);
            color: #fff;
            box-shadow: none;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .badge-soft {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50rem;
        }

        .badge-accent {
            background: rgba(255, 159, 28, 0.14);
            color: #b95e00;
        }

        .badge-dark {
            background: rgba(10, 14, 26, 0.08);
            color: var(--dark-bg);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 14, 26, 0.66);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(10, 14, 26, 0.95);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }

        .site-header .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .brand-logo {
            font-size: 21px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }

        .brand-logo:hover {
            color: var(--secondary);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            box-shadow: 0 4px 14px rgba(0, 194, 255, 0.36);
            flex-shrink: 0;
        }

        .site-header .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 22px !important;
            border-radius: 50rem;
            transition: var(--transition);
            margin: 0 2px;
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--secondary);
            background: rgba(255, 255, 255, 0.08);
        }

        .site-header .navbar-nav .nav-link.active {
            color: #fff;
            background: rgba(0, 194, 255, 0.14);
            font-weight: 600;
        }

        .header-cta {
            font-size: 14px;
            padding: 8px 20px;
            white-space: nowrap;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.3);
            outline: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: rgba(10, 14, 26, 0.97);
                border-radius: 16px;
                padding: 18px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }

            .site-header .navbar-nav .nav-link {
                padding: 12px 16px !important;
                margin: 2px 0;
            }

            .header-actions {
                margin-top: 12px;
                text-align: center;
            }
        }

        /* ========== Article Hero Banner ========== */
        .article-hero {
            position: relative;
            padding: 170px 0 80px;
            background: linear-gradient(135deg, #0a1a2e 0%, #0e2a4a 50%, #123a5e 100%);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
        }

        .article-hero .hero-back {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.38;
        }

        .article-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.3) 0%, rgba(10, 14, 26, 0.74) 100%);
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
            max-width: 960px;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            margin-bottom: 18px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb-nav a:hover {
            color: var(--secondary);
        }

        .breadcrumb-nav .fas {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb-nav .current {
            color: rgba(255, 255, 255, 0.95);
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-hero h1 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw + 1rem, 2.6rem);
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 18px;
            word-break: break-word;
            letter-spacing: 0.5px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            max-width: 860px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            color: rgba(255, 255, 255, 0.82);
            font-size: 14px;
            align-items: center;
        }

        .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .hero-meta .meta-item .fas {
            color: var(--secondary);
            font-size: 13px;
        }

        /* ========== Article Main ========== */
        .article-main {
            padding: 48px 0 20px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 32px;
            align-items: start;
        }

        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 34px;
            overflow: hidden;
        }

        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .article-cover img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 7;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 28px;
            margin-bottom: 14px;
            font-weight: 700;
            color: var(--dark-bg);
            letter-spacing: 0.3px;
        }

        .article-content h2 {
            font-size: 1.45rem;
            border-left: 4px solid var(--primary);
            padding-left: 14px;
        }

        .article-content h3 {
            font-size: 1.2rem;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 20px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: #eef9ff;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
            color: #0a3a55;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 18px;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 8px;
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(11, 94, 215, 0.25);
        }

        .article-content a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 18px 0;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid #dbe6f3;
            padding: 10px 14px;
        }

        .article-content table th {
            background: var(--primary-light);
            font-weight: 600;
        }

        .article-content code {
            background: #f1f5f9;
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 0.92em;
            color: #c7254e;
        }

        .article-content pre {
            background: #0a1420;
            color: #e2e8f0;
            padding: 18px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 18px 0;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        /* 分享标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            padding-top: 24px;
            border-top: 1px solid #ecf1f8;
        }

        .article-tags .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f1f5fb;
            color: #38506e;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 50rem;
            transition: var(--transition);
        }

        .article-tags .tag-link:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .share-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
            transition: var(--transition);
        }

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

        .share-weixin {
            background: #09bb07;
        }

        .share-weibo {
            background: #e6162d;
        }

        .share-qq {
            background: #12b7f5;
        }

        .share-link {
            background: #5e7a94;
        }

        /* ========== Sidebar ========== */
        .sidebar {
            position: sticky;
            top: 96px;
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 26px;
        }

        .sidebar-card .card-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--dark-bg);
            margin-bottom: 18px;
        }

        .sidebar-card .card-title::after {
            content: "";
            flex: 1;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), transparent);
            border-radius: 2px;
        }

        .sidebar-posts {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-post {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 8px;
            border-radius: 10px;
            transition: var(--transition);
            border-bottom: 1px dashed #e8eef6;
        }

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

        .sidebar-post:hover {
            background: var(--primary-light);
            transform: translateX(4px);
        }

        .sidebar-post .post-index {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: #f1f5fb;
            color: #8395aa;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .sidebar-post:hover .post-index {
            background: var(--primary);
            color: #fff;
        }

        .sidebar-post .post-title {
            font-size: 14px;
            font-weight: 500;
            color: #2a3a4d;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .sidebar-cta {
            background: linear-gradient(135deg, #0e2238, #123a5e);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .sidebar-cta::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 130px;
            height: 130px;
            border-radius: 50%;
            background: rgba(0, 194, 255, 0.2);
        }

        .sidebar-cta .cta-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 194, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 16px;
            color: var(--secondary);
        }

        .sidebar-cta h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 13px;
            opacity: 0.8;
            margin-bottom: 18px;
            line-height: 1.7;
        }

        /* ========== Related Posts ========== */
        .related-section {
            padding: 40px 0 56px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
        }

        .section-head .sec-title {
            font-size: 26px;
            font-weight: 800;
            color: var(--dark-bg);
            margin: 0;
            letter-spacing: 0.5px;
        }

        .section-head .sec-sub {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 4px;
        }

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

        .related-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(11, 94, 215, 0.2);
        }

        .related-card .card-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .related-card .card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 26, 0.35));
        }

        .related-card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-body .badge-soft {
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .related-card .card-body h5 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-bg);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .related-card .card-body h5 a:hover {
            color: var(--primary);
        }

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

        .related-card .card-footer {
            border-top: 1px solid #eef2f7;
            padding: 12px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            background: transparent;
        }

        .related-card .card-footer a {
            color: var(--primary);
            font-weight: 600;
        }

        .related-card .card-footer a:hover {
            color: var(--primary-dark);
        }

        /* ========== CTA ========== */
        .article-cta-band {
            padding: 56px 0;
            background: linear-gradient(135deg, #0a0e1a 0%, #0e1f36 45%, #123a5e 100%);
            position: relative;
            overflow: hidden;
        }

        .article-cta-band::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(0, 194, 255, 0.12);
        }

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

        .article-cta-band h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .article-cta-band p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

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

        /* ========== Footer ========== */
        .site-footer {
            background: #090d15;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .site-footer .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

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

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
        }

        .site-footer .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 18px;
        }

        .site-footer .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: var(--transition);
        }

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

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            line-height: 1.6;
            transition: var(--transition);
        }

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

        .site-footer .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            margin-bottom: 8px;
        }

        .site-footer .footer-contact p .fas {
            color: var(--secondary);
            width: 16px;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            color: rgba(255, 255, 255, 0.45);
            font-size: 13px;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ========== Not Found ========== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-box .nf-icon {
            width: 76px;
            height: 76px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 22px;
        }

        .not-found-box h2 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--dark-bg);
        }

        .not-found-box p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .article-layout {
                grid-template-columns: 1fr 320px;
            }
        }

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

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

            .article-hero {
                padding: 140px 0 60px;
                min-height: 320px;
            }
        }

        @media (max-width: 767.98px) {
            .sidebar {
                grid-template-columns: 1fr;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .article-card {
                padding: 22px;
            }

            .article-hero h1 {
                font-size: 1.5rem;
            }

            .article-cta-band h2 {
                font-size: 24px;
            }

            .site-footer .footer-top {
                row-gap: 30px;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .breadcrumb-nav .current {
                max-width: 160px;
            }

            .article-layout {
                gap: 24px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

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