/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #6c5ce7;
            --color-primary-light: #a29bfe;
            --color-primary-dark: #4a3db8;
            --color-secondary: #fd79a8;
            --color-accent: #fdcb6e;
            --color-bg: #f8f9fe;
            --color-bg-alt: #ffffff;
            --color-bg-dark: #1a1a2e;
            --color-text: #2d3436;
            --color-text-light: #636e72;
            --color-text-lighter: #b2bec3;
            --color-border: #e0e0f0;
            --color-border-light: #f0f0f8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 6px 24px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 16px 48px rgba(108, 92, 231, 0.16);
            --shadow-hover: 0 12px 40px rgba(108, 92, 231, 0.22);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --header-height: 70px;
            --nav-top-height: 44px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

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

        /* ===== 顶部品牌条 ===== */
        .top-bar {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            height: var(--nav-top-height);
            display: flex;
            align-items: center;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-bar a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            margin-left: 18px;
        }
        .top-bar a:hover {
            color: #fff;
        }
        .top-bar .tagline {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .top-bar .tagline i {
            color: var(--color-accent);
        }

        /* ===== 主导航 ===== */
        .main-header {
            background: var(--color-bg-alt);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .main-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 28px;
            color: var(--color-secondary);
        }
        .logo:hover {
            color: var(--color-primary-dark);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--color-primary);
            background: rgba(108, 92, 231, 0.06);
        }
        .nav-list a.active {
            color: var(--color-primary);
            background: rgba(108, 92, 231, 0.10);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 4px;
        }
        .nav-cta {
            background: var(--color-primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            margin-left: 10px;
        }
        .nav-cta:hover {
            background: var(--color-primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--color-text);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: var(--color-bg);
        }
        .nav-toggle:hover {
            background: var(--color-border-light);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .nav-list {
                position: fixed;
                top: calc(var(--header-height) + var(--nav-top-height));
                left: 0;
                right: 0;
                background: var(--color-bg-alt);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 99;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            background: linear-gradient(135deg, var(--color-bg-dark) 0%, #2d1b69 100%);
            min-height: 520px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-content h1 span {
            background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 480px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.25);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.20);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            transform: perspective(800px) rotateY(-4deg);
            transition: var(--transition);
        }
        .hero-visual img:hover {
            transform: perspective(800px) rotateY(0deg);
        }
        .hero-badge {
            position: absolute;
            top: -12px;
            right: -12px;
            background: var(--color-secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 24px;
            box-shadow: var(--shadow-sm);
        }

        @media (max-width: 900px) {
            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-content p {
                max-width: 100%;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-visual img {
                max-width: 70%;
                transform: none;
            }
            .hero-badge {
                top: 0;
                right: 10%;
            }
        }
        @media (max-width: 520px) {
            .hero {
                padding: 50px 0 40px;
                min-height: auto;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-content p {
                font-size: 15px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .hero-visual img {
                max-width: 90%;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.85);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header h2 i {
            color: var(--color-primary);
            margin-right: 8px;
        }
        .section-header p {
            color: var(--color-text-light);
            font-size: 17px;
            max-width: 620px;
            margin: 0 auto;
        }
        .section-header .subtitle {
            display: inline-block;
            background: rgba(108, 92, 231, 0.10);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .category-card {
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            padding: 28px 20px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary-light);
        }
        .category-card .icon {
            font-size: 38px;
            color: var(--color-primary);
            margin-bottom: 14px;
            display: block;
        }
        .category-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card p {
            font-size: 13px;
            color: var(--color-text-light);
        }
        .category-card .badge {
            display: inline-block;
            background: rgba(108, 92, 231, 0.08);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
            margin-top: 8px;
        }

        /* ===== 最新资讯列表（CMS区域） ===== */
        .post-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 18px;
        }
        .post-item {
            display: flex;
            gap: 22px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .post-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .post-item .thumb {
            flex-shrink: 0;
            width: 160px;
            height: 110px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--color-bg);
        }
        .post-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .post-item .info {
            flex: 1;
            min-width: 0;
        }
        .post-item .info .meta {
            font-size: 13px;
            color: var(--color-text-lighter);
            display: flex;
            gap: 14px;
            align-items: center;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }
        .post-item .info .meta .tag {
            background: rgba(108, 92, 231, 0.08);
            color: var(--color-primary);
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 12px;
        }
        .post-item .info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .post-item .info h3 a {
            color: var(--color-text);
        }
        .post-item .info h3 a:hover {
            color: var(--color-primary);
        }
        .post-item .info .desc {
            font-size: 14px;
            color: var(--color-text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-lighter);
            font-size: 16px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }
        .post-empty i {
            font-size: 42px;
            display: block;
            margin-bottom: 14px;
            color: var(--color-border);
        }

        @media (max-width: 680px) {
            .post-item {
                flex-direction: column;
                padding: 16px;
            }
            .post-item .thumb {
                width: 100%;
                height: 180px;
            }
            .post-item .info h3 {
                font-size: 16px;
            }
        }

        /* ===== 特色板块（图文） ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
        }
        .feature-text h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .feature-text p {
            color: var(--color-text-light);
            font-size: 16px;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .feature-text ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-text ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--color-text);
        }
        .feature-text ul li i {
            color: var(--color-primary);
            font-size: 18px;
            width: 22px;
            text-align: center;
        }

        @media (max-width: 820px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .feature-text h3 {
                font-size: 22px;
            }
            .feature-visual {
                order: -1;
            }
        }

        /* ===== 数据/统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.70);
        }

        /* ===== 内容卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .card .card-body {
            padding: 20px 22px 24px;
        }
        .card .card-body .tag {
            display: inline-block;
            background: rgba(108, 92, 231, 0.08);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 12px;
            margin-bottom: 8px;
        }
        .card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card .card-body p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .card .card-body .card-meta {
            font-size: 13px;
            color: var(--color-text-lighter);
            margin-top: 12px;
            display: flex;
            gap: 12px;
            align-items: center;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-primary-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            color: var(--color-text);
            transition: var(--transition);
            gap: 12px;
        }
        .faq-item .faq-q:hover {
            color: var(--color-primary);
        }
        .faq-item .faq-q i {
            color: var(--color-primary);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 540px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: #fff;
            color: var(--color-primary);
            padding: 16px 44px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 17px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.20);
            color: var(--color-primary-dark);
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 36px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .cta-section .btn-cta {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.70);
            padding: 52px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--color-secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 14px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.40);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.40);
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--color-accent);
            transform: translateY(-2px);
        }

        @media (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 通用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-36 {
            margin-top: 36px;
        }
        .mb-12 {
            margin-bottom: 12px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .w-full {
            width: 100%;
        }

        /* ===== 分页/加载更多 ===== */
        .load-more {
            text-align: center;
            margin-top: 36px;
        }
        .load-more .btn {
            padding: 12px 40px;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --primary-bg: #f0edff;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --accent-dark: #00b3b0;
            --bg: #f8f9fd;
            --bg-card: #ffffff;
            --bg-dark: #2d2d44;
            --bg-footer: #1e1e2f;
            --text: #2d2d44;
            --text-light: #6c7a8e;
            --text-white: #f0f0f5;
            --border: #e8e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(108, 92, 231, 0.10);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.18);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 80px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-h);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .main-header>.container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            font-size: 1.7rem;
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-list li a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.35);
        }
        .nav-list li a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-list li a.nav-cta {
            background: var(--secondary);
            color: #fff;
            padding: 8px 22px;
            box-shadow: 0 4px 16px rgba(253, 121, 168, 0.30);
        }
        .nav-list li a.nav-cta:hover {
            background: #e86a9a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(253, 121, 168, 0.40);
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.8rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        /* ===== Hero / Banner ===== */
        .category-banner {
            position: relative;
            padding: 80px 0 64px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3d3d5c 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-banner h1 {
            color: #fff;
            font-size: 3rem;
            margin-bottom: 12px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-banner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 20px;
        }
        .category-banner .badge-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 16px;
        }
        .category-banner .badge {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        .category-banner .badge i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 540px;
            margin: 12px auto 0;
        }

        /* ===== 分类子导航 ===== */
        .sub-nav {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: var(--header-h);
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .sub-nav .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 4px;
            justify-content: center;
        }
        .sub-nav a {
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .sub-nav a:hover,
        .sub-nav a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
        }
        .sub-nav a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .guide-card .card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(108, 92, 231, 0.3);
        }
        .guide-card .card-img .tag.hot {
            background: var(--secondary);
        }
        .guide-card .card-img .tag.new {
            background: var(--accent);
        }
        .guide-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .guide-card .card-body h3 a {
            color: var(--text);
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .guide-card .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .guide-card .card-meta span i {
            margin-right: 6px;
            color: var(--primary-light);
        }
        .guide-card .card-meta .views {
            color: var(--text-light);
        }

        /* ===== 热门攻略排行 ===== */
        .rank-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            padding: 18px 22px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .rank-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .rank-item .rank-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--secondary);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-num {
            background: var(--primary);
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-num {
            background: var(--accent);
            color: #fff;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .rank-item .rank-info span {
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .rank-item .rank-info span i {
            margin-right: 4px;
            color: var(--primary-light);
        }
        .rank-item .badge-hot {
            background: #ff6b6b;
            color: #fff;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.72rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        /* ===== 攻略分类入口 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 20px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .cat-card .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 1.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .cat-card:hover .cat-icon {
            background: var(--primary);
            color: #fff;
        }
        .cat-card h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .cat-card p {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ===== 攻略技巧区块 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .tip-block {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            padding: 24px 28px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tip-block:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-hover);
        }
        .tip-block .tip-icon {
            font-size: 2rem;
            color: var(--primary);
            flex-shrink: 0;
            width: 48px;
            text-align: center;
        }
        .tip-block .tip-content h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .tip-block .tip-content p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text);
            transition: var(--transition);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .faq-item[open] summary i {
            transform: rotate(90deg);
        }
        .faq-item summary:hover {
            background: var(--primary-bg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            box-shadow: 0 12px 40px rgba(108, 92, 231, 0.30);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 24px;
        }
        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .cta-block .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-block .btn-primary {
            background: #fff;
            color: var(--primary);
        }
        .cta-block .btn-primary:hover {
            background: var(--primary-bg);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .cta-block .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .cta-block .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-3px);
        }

        /* ===== 通用按钮 ===== */
        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #fff;
            background: var(--primary);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            margin-top: 36px;
        }
        .btn-more:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.30);
            color: #fff;
        }
        .btn-more i {
            font-size: 0.85rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .site-footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 18px;
            font-weight: 700;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 0.65rem;
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-light);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .pagination a:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-light);
        }
        .pagination .active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.30);
        }
        .pagination .next {
            width: auto;
            padding: 0 20px;
            border-radius: 40px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 16px 0 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--bg);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 6px;
            color: var(--border);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --header-h: 64px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .category-banner {
                padding: 48px 0 40px;
                min-height: 240px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-banner p {
                font-size: 0.95rem;
            }
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 2px solid var(--border);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-list li a {
                padding: 12px 18px;
                width: 100%;
                border-radius: 10px;
                font-size: 1rem;
            }
            .nav-list li a.nav-cta {
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .rank-list {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tip-block {
                flex-direction: column;
                text-align: center;
                align-items: center;
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .sub-nav {
                padding: 12px 0;
            }
            .sub-nav a {
                font-size: 0.82rem;
                padding: 4px 14px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .pagination a,
            .pagination span {
                width: 38px;
                height: 38px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .cat-card {
                padding: 20px 12px;
            }
            .cat-card .cat-icon {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
            .guide-card .card-body {
                padding: 16px 18px 18px;
            }
            .guide-card .card-body h3 {
                font-size: 1rem;
            }
            .rank-item {
                padding: 14px 16px;
                gap: 12px;
            }
            .rank-item .rank-num {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .cta-block {
                padding: 28px 16px;
                border-radius: var(--radius);
            }
            .cta-block .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .footer-grid {
                gap: 20px;
            }
            .sub-nav a {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .sub-nav a i {
                display: none;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c3fc4;
            --primary-light: #8b5cf6;
            --primary-dark: #4c1d95;
            --primary-bg: #f5f0ff;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #06b6d4;
            --bg: #fafafa;
            --bg-card: #ffffff;
            --bg-dark: #1e1b2e;
            --text: #1f2937;
            --text-light: #6b7280;
            --text-white: #f9fafb;
            --border: #e5e7eb;
            --border-light: #f3f4f6;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(108, 63, 196, 0.08);
            --shadow-lg: 0 12px 48px rgba(108, 63, 196, 0.15);
            --shadow-hover: 0 20px 56px rgba(108, 63, 196, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text);
            font-weight: 700;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Navigation ===== */
        .main-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .logo i {
            font-size: 1.8rem;
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 63, 196, 0.3);
        }
        .nav-list li a.nav-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            color: #1f2937;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
        }
        .nav-list li a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #ccc;
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
            max-width: 360px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 40px 0 20px;
            background: var(--bg-card);
        }
        .article-hero .container {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: start;
        }
        .article-hero-main h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .article-meta .badge {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.8rem;
        }
        .article-meta .date i,
        .article-meta .category i {
            margin-right: 4px;
        }
        .article-hero-cover {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 16 / 10;
            background: var(--primary-bg);
        }
        .article-hero-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== Article Body ===== */
        .article-body-wrap {
            padding: 40px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .article-content p {
            margin-bottom: 1.4em;
            font-size: 1.05rem;
            line-height: 1.85;
            color: #374151;
        }
        .article-content h2 {
            font-size: 1.6rem;
            margin: 1.6em 0 0.6em;
            color: var(--primary-dark);
        }
        .article-content h3 {
            font-size: 1.25rem;
            margin: 1.4em 0 0.5em;
            color: var(--text);
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.4em 1.8em;
        }
        .article-content li {
            margin-bottom: 0.5em;
            line-height: 1.7;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-bg);
            padding: 16px 24px;
            margin: 1.4em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #374151;
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow);
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--primary-light);
        }
        .article-content code {
            background: #f3f4f6;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #d97706;
        }
        .article-content pre {
            background: #1e1b2e;
            color: #e5e7eb;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.4em 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-bg);
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-dark);
        }
        .sidebar-card h3 i {
            color: var(--secondary);
        }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
        }
        .sidebar-list li a:hover {
            color: var(--primary);
        }
        .sidebar-list li a i {
            color: var(--primary-light);
            font-size: 0.7rem;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            padding: 28px 20px;
            border-radius: var(--radius);
            text-align: center;
        }
        .sidebar-cta h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            opacity: 0.85;
            margin-bottom: 16px;
        }
        .sidebar-cta .btn {
            background: var(--secondary);
            color: #1f2937;
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: inline-block;
            transition: var(--transition);
        }
        .sidebar-cta .btn:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }

        /* ===== Share Bar ===== */
        .share-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }
        .share-bar span {
            font-weight: 600;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
            background: var(--primary-bg);
            color: var(--primary);
        }
        .share-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(108, 63, 196, 0.25);
        }
        .share-btn.wechat {
            background: #07c160;
            color: #fff;
        }
        .share-btn.weibo {
            background: #e6162d;
            color: #fff;
        }
        .share-btn.qq {
            background: #12b7f5;
            color: #fff;
        }
        .share-btn.link {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 32px;
            text-align: center;
            color: var(--text);
        }
        .related-section .section-title span {
            color: var(--primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--primary-bg);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body .cat {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h4 a {
            color: var(--text);
        }
        .related-card .card-body h4 a:hover {
            color: var(--primary);
        }
        .related-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== Comments Section ===== */
        .comments-section {
            padding: 60px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border);
        }
        .comments-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 28px;
            color: var(--text);
        }
        .comments-section .section-title i {
            color: var(--secondary);
            margin-right: 8px;
        }
        .comment-form {
            display: grid;
            gap: 16px;
            margin-bottom: 32px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            resize: vertical;
            min-height: 120px;
            font-size: 0.95rem;
            transition: var(--transition);
            background: var(--bg);
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(108, 63, 196, 0.1);
        }
        .comment-form .form-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg);
            transition: var(--transition);
        }
        .comment-form .form-row input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(108, 63, 196, 0.1);
        }
        .comment-form .btn-submit {
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
            font-size: 1rem;
        }
        .comment-form .btn-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 63, 196, 0.3);
        }
        .comment-list {
            display: grid;
            gap: 20px;
        }
        .comment-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
        }
        .comment-item .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .comment-item .comment-body {
            flex: 1;
        }
        .comment-item .comment-body .name {
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
        }
        .comment-item .comment-body .time {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .comment-item .comment-body .text {
            color: #374151;
            line-height: 1.6;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .faq-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 36px;
            color: var(--text);
        }
        .faq-section .section-title span {
            color: var(--primary);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-lg);
        }
        .faq-item .question {
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }
        .faq-item .question i {
            color: var(--secondary);
            font-size: 1.1rem;
        }
        .faq-item .answer {
            margin-top: 10px;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            padding-left: 28px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            text-align: center;
        }
        .cta-section .container {
            max-width: 700px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            background: var(--secondary);
            color: #1f2937;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(245, 158, 11, 0.35);
        }
        .cta-section .btn-outline {
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.7;
            opacity: 0.75;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 0.65rem;
            color: var(--secondary);
        }
        .footer-col ul li a .fab {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col ul li a:hover .fab {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: #1f2937;
            transform: translateY(-3px);
        }

        /* ===== Not Found ===== */
        .not-found-wrap {
            padding: 80px 0;
            text-align: center;
        }
        .not-found-wrap i {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-wrap h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            color: var(--text);
        }
        .not-found-wrap p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .not-found-wrap .btn-back {
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: inline-block;
            transition: var(--transition);
        }
        .not-found-wrap .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-hero .container {
                grid-template-columns: 1fr;
            }
            .article-hero-cover {
                aspect-ratio: 16 / 8;
                max-height: 320px;
            }
            .article-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 2px solid var(--border);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list li a.nav-cta {
                margin-top: 6px;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            .article-hero-main h1 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 24px 20px;
            }
            .article-content p {
                font-size: 1rem;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .breadcrumb .current {
                max-width: 200px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .article-hero-main h1 {
                font-size: 1.4rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 10px;
            }
            .article-content {
                padding: 18px 16px;
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                min-width: 100%;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .btn-primary,
            .cta-section .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb .current {
                max-width: 140px;
            }
            .sidebar-card {
                padding: 18px 16px;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== Smooth Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: #d1d5db;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #9ca3af;
        }