/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #CC0000;
            --primary-dark: #990000;
            --primary-light: #FF1A1A;
            --secondary: #1A1A1A;
            --accent: #FFD700;
            --accent-light: #FFED4A;
            --bg-dark: #0A0A0A;
            --bg-card: #FFFFFF;
            --bg-section: #F5F5F5;
            --bg-alt: #FAFAFA;
            --text-primary: #1A1A1A;
            --text-secondary: #555555;
            --text-light: #999999;
            --text-white: #FFFFFF;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-hover: 0 16px 48px rgba(0,0,0,0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --sidebar-width: 240px;
            --sidebar-collapsed: 72px;
            --header-height: 64px;
        }

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

        /* ===== 容器 ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== App Shell 布局 ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--secondary);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            z-index: 1050;
            transition: transform 0.3s ease, width 0.3s ease;
            overflow-y: auto;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.2);
        }
        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-logo {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            line-height: 1.2;
        }
        .sidebar-brand .brand-text small {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 1px;
        }
        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
            position: relative;
        }
        .sidebar-nav .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }
        .sidebar-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav .nav-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(204, 0, 0, 0.35);
        }
        .sidebar-nav .nav-item.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
        }
        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: var(--bg-alt);
        }

        /* ===== 移动端顶部栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--secondary);
            z-index: 1040;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
        }
        .mobile-header .brand-text {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }
        .mobile-header .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.05);
            border: none;
        }
        .mobile-header .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== 侧栏遮罩 ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1045;
            backdrop-filter: blur(4px);
        }

        /* ===== 响应式导航 ===== */
        @media (max-width: 992px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .mobile-header {
                display: flex;
            }
        }
        @media (min-width: 993px) {
            .sidebar-overlay {
                display: none !important;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.7;
            transform: scale(1.05);
            transition: transform 8s ease;
        }
        .hero-section:hover .hero-bg {
            transform: scale(1);
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 10, 0.85) 0%, rgba(10, 10, 10, 0.4) 50%, rgba(204, 0, 0, 0.25) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 40px 24px;
            max-width: 800px;
            width: 100%;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(204, 0, 0, 0.3);
        }
        .hero-section .hero-title {
            font-size: clamp(2.8rem, 8vw, 5.2rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .hero-section .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section .hero-sub {
            font-size: clamp(1rem, 2vw, 1.4rem);
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            font-weight: 400;
            line-height: 1.6;
        }
        .hero-section .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-section .btn-hero {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: none;
            cursor: pointer;
        }
        .hero-section .btn-hero-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(204, 0, 0, 0.35);
        }
        .hero-section .btn-hero-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(204, 0, 0, 0.45);
            color: #fff;
        }
        .hero-section .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(4px);
        }
        .hero-section .btn-hero-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            background: rgba(255, 215, 0, 0.08);
        }
        .hero-section .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            animation: bounce-down 2s infinite;
            cursor: pointer;
        }
        .hero-section .hero-scroll i {
            font-size: 20px;
        }
        @keyframes bounce-down {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 70vh;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-section .btn-hero {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-header {
                margin-bottom: 32px;
            }
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 16px;
        }
        .section-header.text-center .section-divider {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .card-modern {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-modern:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-modern .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            transition: var(--transition);
        }
        .card-modern:hover .card-img {
            transform: scale(1.03);
        }
        .card-modern .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-modern .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .card-modern .card-tag.tag-alt {
            background: var(--secondary);
            color: #fff;
        }
        .card-modern .card-tag.tag-accent {
            background: var(--accent);
            color: var(--text-primary);
        }
        .card-modern .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-modern .card-title a {
            color: var(--text-primary);
        }
        .card-modern .card-title a:hover {
            color: var(--primary);
        }
        .card-modern .card-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-modern .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .card-modern .card-meta i {
            margin-right: 4px;
        }

        /* ===== 分类入口卡片（大型） ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            transition: var(--transition);
        }
        .category-card:hover .cat-bg {
            transform: scale(1.05);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.1) 70%, transparent 100%);
            z-index: 1;
        }
        .category-card .cat-content {
            position: relative;
            z-index: 2;
            padding: 32px 28px;
            width: 100%;
        }
        .category-card .cat-content .cat-label {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .category-card .cat-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 6px;
        }
        .category-card .cat-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .category-card .cat-content .btn-cat {
            padding: 10px 28px;
            border-radius: 50px;
            background: #fff;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .category-card .cat-content .btn-cat:hover {
            background: var(--accent);
            color: var(--text-primary);
            transform: translateX(4px);
        }

        /* ===== 统计数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-item .stat-number .suffix {
            font-size: 1.4rem;
            font-weight: 600;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== 特色功能卡片 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-card .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 26px;
            color: #fff;
            box-shadow: 0 8px 24px rgba(204, 0, 0, 0.25);
        }
        .feature-card .feature-icon.icon-alt {
            background: linear-gradient(135deg, var(--secondary), #333);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .feature-card .feature-icon.icon-accent {
            background: linear-gradient(135deg, var(--accent), #E6B800);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
        }
        .feature-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 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-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.active .faq-answer {
            padding: 0 24px 20px;
            max-height: 300px;
        }
        .faq-item .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--secondary);
            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: 0.1;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section .cta-content h2 {
            color: #fff;
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section .cta-content p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            padding: 16px 44px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 17px;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 28px rgba(204, 0, 0, 0.35);
            cursor: pointer;
        }
        .cta-section .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(204, 0, 0, 0.45);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .site-footer .footer-brand span {
            color: var(--primary);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 360px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            justify-content: center;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            justify-content: center;
            margin-top: 16px;
        }
        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 18px;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 内容列表（CMS） ===== */
        .post-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
            color: var(--text-light);
            font-size: 1rem;
        }
        .post-empty i {
            font-size: 40px;
            display: block;
            margin-bottom: 16px;
            color: var(--border-color);
        }

        /* ===== 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: 15px;
            background: var(--primary);
            color: #fff;
            border: none;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-more:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(204, 0, 0, 0.3);
            color: #fff;
        }
        .btn-more-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-more-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 图片圆角工具 ===== */
        .img-radius {
            border-radius: var(--radius-md);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .post-list {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .category-card {
                min-height: 240px;
            }
            .category-card .cat-content {
                padding: 20px 20px;
            }
            .category-card .cat-content h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section .hero-title {
                font-size: 2rem;
            }
            .hero-section .hero-sub {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .faq-item .faq-question {
                padding: 16px 16px;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== 滚动条美化 ===== */
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        .sidebar::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        .nav-item:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 背景辅助 ===== */
        .bg-primary-light {
            background: var(--primary);
            color: #fff;
        }
        .bg-dark-section {
            background: var(--secondary);
            color: #fff;
        }
        .bg-dark-section .section-title {
            color: #fff;
        }
        .bg-dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .bg-dark-section .section-divider {
            background: var(--accent);
        }
        .bg-alt-section {
            background: var(--bg-section);
        }

        /* ===== 信息条 ===== */
        .info-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }
        .info-bar i {
            font-size: 24px;
            color: var(--primary);
        }
        .info-bar p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== 导航栏分隔 ===== */
        .nav-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.06);
            margin: 8px 12px;
        }

/* roulang page: article */
:root {
        --primary: #cc1a1a;
        --primary-hover: #b81515;
        --primary-light: rgba(204, 26, 26, 0.08);
        --accent: #1a1a2e;
        --accent-hover: #2a2a4e;
        --bg-body: #f8f7f4;
        --bg-card: #ffffff;
        --bg-dark: #0f0f1a;
        --text-primary: #1a1a2e;
        --text-secondary: #555570;
        --text-light: #9898b0;
        --border-light: #e8e6e0;
        --border-card: #f0eee8;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
        --shadow-md: 0 6px 24px rgba(0,0,0,0.07);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --sidebar-width: 220px;
        --header-height: 0px;
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        --transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
    }

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

    body {
        font-family: var(--font-sans);
        background: var(--bg-body);
        color: var(--text-primary);
        line-height: 1.6;
        padding-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
    .container-custom { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

    /* ===== 左侧导航 Sidebar ===== */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--sidebar-width);
        height: 100vh;
        background: var(--bg-dark);
        color: #fff;
        display: flex;
        flex-direction: column;
        padding: 28px 16px 20px;
        z-index: 1040;
        overflow-y: auto;
        transition: var(--transition);
    }

    .sidebar-brand {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 0.3px;
        padding: 0 12px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .sidebar-brand span { color: var(--primary); font-weight: 800; }
    .sidebar-brand i { color: var(--primary); font-size: 22px; }

    .sidebar-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
    .sidebar-nav .nav-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        color: rgba(255,255,255,0.65);
        font-size: 15px;
        font-weight: 500;
        transition: var(--transition);
        text-decoration: none;
    }
    .sidebar-nav .nav-item i { width: 20px; font-size: 16px; text-align: center; }
    .sidebar-nav .nav-item:hover {
        background: rgba(255,255,255,0.07);
        color: #fff;
    }
    .sidebar-nav .nav-item.active {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 4px 12px rgba(204,26,26,0.35);
    }
    .sidebar-nav .nav-divider {
        height: 1px;
        background: rgba(255,255,255,0.08);
        margin: 8px 12px;
    }

    /* ===== 主内容区 ===== */
    .main-content {
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    /* ===== 文章 Banner ===== */
    .article-banner {
        position: relative;
        padding: 60px 0 50px;
        background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-blend-mode: overlay;
        min-height: 340px;
        display: flex;
        align-items: flex-end;
    }
    .article-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15,15,26,0.88) 0%, rgba(15,15,26,0.60) 60%, rgba(204,26,26,0.25) 100%);
        z-index: 1;
    }
    .article-banner .container-custom { position: relative; z-index: 2; }
    .article-banner .breadcrumb-custom {
        display: flex;
        gap: 8px;
        align-items: center;
        font-size: 14px;
        color: rgba(255,255,255,0.55);
        margin-bottom: 16px;
        flex-wrap: wrap;
    }
    .article-banner .breadcrumb-custom a { color: rgba(255,255,255,0.65); }
    .article-banner .breadcrumb-custom a:hover { color: #fff; }
    .article-banner .breadcrumb-custom .sep { color: rgba(255,255,255,0.3); }
    .article-banner .breadcrumb-custom .current { color: #fff; font-weight: 500; }

    .article-banner h1 {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        line-height: 1.25;
        max-width: 780px;
        margin-bottom: 12px;
        text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    }
    .article-banner .meta-line {
        display: flex;
        flex-wrap: wrap;
        gap: 18px;
        align-items: center;
        color: rgba(255,255,255,0.7);
        font-size: 14px;
    }
    .article-banner .meta-line i { margin-right: 4px; }
    .article-banner .meta-line .tag {
        background: var(--primary);
        color: #fff;
        padding: 2px 14px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    /* ===== 文章正文 ===== */
    .article-body-section {
        padding: 48px 0 60px;
    }
    .article-content {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        padding: 40px 44px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-card);
    }
    .article-content p {
        font-size: 17px;
        line-height: 1.85;
        color: var(--text-secondary);
        margin-bottom: 20px;
    }
    .article-content h2, .article-content h3 {
        font-weight: 700;
        color: var(--text-primary);
        margin-top: 36px;
        margin-bottom: 16px;
    }
    .article-content h2 { font-size: 26px; }
    .article-content h3 { font-size: 21px; }
    .article-content img {
        border-radius: var(--radius-sm);
        margin: 24px 0;
        width: 100%;
        object-fit: cover;
    }
    .article-content blockquote {
        border-left: 4px solid var(--primary);
        padding: 16px 24px;
        background: var(--primary-light);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        margin: 24px 0;
        font-style: italic;
        color: var(--text-secondary);
    }
    .article-content ul, .article-content ol {
        padding-left: 24px;
        margin-bottom: 20px;
        color: var(--text-secondary);
    }
    .article-content li { margin-bottom: 8px; }
    .article-content a { font-weight: 600; }

    .article-footer-bar {
        margin-top: 36px;
        padding-top: 24px;
        border-top: 1px solid var(--border-light);
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
    }
    .article-footer-bar .share-links {
        display: flex;
        gap: 10px;
        align-items: center;
    }
    .article-footer-bar .share-links span {
        font-size: 14px;
        color: var(--text-light);
        margin-right: 4px;
    }
    .article-footer-bar .share-links a {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--bg-body);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        font-size: 15px;
        transition: var(--transition);
        border: 1px solid var(--border-light);
    }
    .article-footer-bar .share-links a:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }

    /* ===== 相关文章 ===== */
    .related-section {
        padding: 0 0 60px;
    }
    .related-section h2 {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 28px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .related-section h2 i { color: var(--primary); }
    .related-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-card);
        transition: var(--transition);
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .related-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .related-card .card-img {
        height: 180px;
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .related-card .card-img .cat-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--primary);
        color: #fff;
        font-size: 11px;
        font-weight: 600;
        padding: 2px 12px;
        border-radius: 20px;
    }
    .related-card .card-body {
        padding: 18px 20px 20px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .related-card .card-body h5 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .related-card .card-body h5 a { color: var(--text-primary); }
    .related-card .card-body h5 a:hover { color: var(--primary); }
    .related-card .card-body p {
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 12px;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-card .card-body .meta {
        font-size: 12px;
        color: var(--text-light);
        display: flex;
        justify-content: space-between;
    }

    /* ===== CTA 区块 ===== */
    .article-cta {
        background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        background-blend-mode: overlay;
        padding: 56px 0;
        text-align: center;
        position: relative;
    }
    .article-cta::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(15,15,26,0.78);
        z-index: 1;
    }
    .article-cta .container-custom { position: relative; z-index: 2; }
    .article-cta h3 {
        font-size: 30px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
    }
    .article-cta p {
        color: rgba(255,255,255,0.7);
        font-size: 17px;
        max-width: 560px;
        margin: 0 auto 28px;
    }
    .article-cta .btn-cta {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--primary);
        color: #fff;
        padding: 14px 40px;
        border-radius: 50px;
        font-size: 16px;
        font-weight: 600;
        border: none;
        transition: var(--transition);
        text-decoration: none;
    }
    .article-cta .btn-cta:hover {
        background: var(--primary-hover);
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(204,26,26,0.4);
        color: #fff;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.7);
        padding: 48px 0 32px;
        margin-top: auto;
    }
    .site-footer .footer-brand {
        font-size: 22px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 10px;
    }
    .site-footer .footer-brand span { color: var(--primary); }
    .site-footer .footer-desc {
        font-size: 14px;
        color: rgba(255,255,255,0.5);
        max-width: 320px;
        line-height: 1.7;
    }
    .site-footer .footer-links {
        display: flex;
        flex-wrap: wrap;
        gap: 8px 20px;
        margin-bottom: 18px;
    }
    .site-footer .footer-links a {
        color: rgba(255,255,255,0.6);
        font-size: 14px;
        transition: var(--transition);
        text-decoration: none;
    }
    .site-footer .footer-links a:hover { color: #fff; }
    .site-footer .footer-social {
        display: flex;
        gap: 14px;
    }
    .site-footer .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255,255,255,0.06);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: rgba(255,255,255,0.5);
        font-size: 17px;
        transition: var(--transition);
        text-decoration: none;
    }
    .site-footer .footer-social a:hover {
        background: var(--primary);
        color: #fff;
    }
    .site-footer .footer-bottom {
        margin-top: 28px;
        padding-top: 20px;
        border-top: 1px solid rgba(255,255,255,0.06);
        font-size: 13px;
        color: rgba(255,255,255,0.35);
        text-align: center;
    }
    .site-footer .footer-bottom a {
        color: rgba(255,255,255,0.45);
        text-decoration: none;
    }
    .site-footer .footer-bottom a:hover { color: #fff; }

    /* ===== 移动端菜单切换 ===== */
    .sidebar-toggle {
        display: none;
        position: fixed;
        top: 16px;
        left: 16px;
        z-index: 1050;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: var(--bg-dark);
        color: #fff;
        border: none;
        font-size: 20px;
        cursor: pointer;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
        align-items: center;
        justify-content: center;
    }
    .sidebar-toggle:hover { background: var(--primary); }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 1035;
        backdrop-filter: blur(4px);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        body { padding-left: 0; }
        .sidebar {
            transform: translateX(-100%);
            width: 260px;
            z-index: 1045;
        }
        .sidebar.open { transform: translateX(0); }
        .sidebar-toggle { display: flex; }
        .sidebar-overlay.show { display: block; }
        .article-banner { padding: 48px 0 40px; min-height: 280px; }
        .article-banner h1 { font-size: 28px; }
        .article-content { padding: 28px 24px; }
        .article-content p { font-size: 16px; }
    }

    @media (max-width: 768px) {
        .article-banner { padding: 40px 0 32px; min-height: 220px; }
        .article-banner h1 { font-size: 22px; }
        .article-banner .meta-line { gap: 10px; font-size: 13px; }
        .article-content { padding: 20px 16px; border-radius: var(--radius-sm); }
        .article-content p { font-size: 15px; }
        .article-footer-bar { flex-direction: column; align-items: flex-start; }
        .related-section h2 { font-size: 20px; }
        .article-cta h3 { font-size: 22px; }
        .article-cta .btn-cta { padding: 12px 28px; font-size: 15px; }
        .site-footer .footer-links { gap: 6px 14px; }
        .container-custom { padding: 0 16px; }
    }

    @media (max-width: 520px) {
        .article-banner h1 { font-size: 19px; }
        .article-banner .meta-line { font-size: 12px; gap: 6px; }
        .meta-line .tag { font-size: 10px; padding: 1px 10px; }
        .article-content { padding: 16px 12px; }
        .article-content p { font-size: 14px; }
        .article-content h2 { font-size: 20px; }
        .article-content h3 { font-size: 17px; }
        .sidebar { width: 240px; }
    }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #c8102e;
            --primary-dark: #a00d24;
            --primary-light: #e81e3e;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d44;
            --accent: #d4af37;
            --accent-light: #f0d060;
            --bg-dark: #0d0d1a;
            --bg-card: #15152a;
            --bg-section: #1a1a35;
            --bg-body: #0a0a18;
            --text-light: #f5f5f5;
            --text-muted: #b0b0c8;
            --text-dim: #7a7a9a;
            --border-color: rgba(200, 16, 46, 0.2);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 16px 48px rgba(200, 16, 46, 0.25);
            --shadow-glow: 0 0 40px rgba(200, 16, 46, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --sidebar-collapsed: 72px;
            --header-height: 0px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 1rem;
            min-height: 100vh;
            display: flex;
        }

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

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

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

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

        ::selection {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-dark);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== Layout: Sidebar + Main ===== */
        .app-wrapper {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-card);
            border-right: 1px solid var(--border-light);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            backdrop-filter: blur(12px);
            transition: var(--transition);
            overflow-y: auto;
        }

        .sidebar-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            padding: 8px 12px 20px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-logo span {
            color: var(--primary);
        }

        .sidebar-logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            background: transparent;
            text-decoration: none;
        }

        .sidebar-nav .nav-item i {
            font-size: 1.2rem;
            width: 24px;
            text-align: center;
            color: var(--text-dim);
            transition: var(--transition);
        }

        .sidebar-nav .nav-item:hover {
            background: rgba(200, 16, 46, 0.08);
            color: var(--text-light);
        }

        .sidebar-nav .nav-item:hover i {
            color: var(--primary-light);
        }

        .sidebar-nav .nav-item.active {
            background: linear-gradient(135deg, rgba(200, 16, 46, 0.2), rgba(200, 16, 46, 0.05));
            color: var(--text-light);
            font-weight: 600;
            border-left: 3px solid var(--primary);
        }

        .sidebar-nav .nav-item.active i {
            color: var(--primary);
        }

        .nav-divider {
            height: 1px;
            background: var(--border-light);
            margin: 12px 16px;
            opacity: 0.5;
        }

        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
            font-size: 0.75rem;
            color: var(--text-dim);
            text-align: center;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--sidebar-width));
        }

        .main-content-inner {
            flex: 1;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-card) 50%, var(--secondary) 100%);
            overflow: hidden;
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--border-light);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 24, 0.85) 0%, rgba(21, 21, 42, 0.7) 100%);
            z-index: 1;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 16, 46, 0.2);
            border: 1px solid rgba(200, 16, 46, 0.3);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .category-hero .hero-badge i {
            font-size: 0.9rem;
        }

        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            color: var(--text-light);
            margin-bottom: 16px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

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

        .category-hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

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

        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-dim);
            font-weight: 400;
            letter-spacing: 0.5px;
        }

        /* ===== Section通用 ===== */
        .section-block {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .section-block:last-of-type {
            border-bottom: none;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        .section-label i {
            font-size: 0.75rem;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

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

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .card-modern {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .card-modern:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 16, 46, 0.25);
            box-shadow: var(--shadow-hover);
        }

        .card-modern .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(200, 16, 46, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .card-modern:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }

        .card-modern h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .card-modern p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .card-modern .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(200, 16, 46, 0.1);
            color: var(--primary-light);
            font-size: 0.75rem;
            font-weight: 500;
            margin-top: 12px;
        }

        /* ===== Cover Card ===== */
        .cover-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }

        .cover-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 16, 46, 0.2);
        }

        .cover-card .cover-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            border-radius: 0;
            transition: var(--transition);
        }

        .cover-card:hover .cover-img {
            transform: scale(1.03);
        }

        .cover-card .cover-body {
            padding: 20px 22px 24px;
        }

        .cover-card .cover-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
        }

        .cover-card .cover-body .cover-meta {
            font-size: 0.8rem;
            color: var(--text-dim);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }

        .cover-card .cover-body .cover-meta i {
            margin-right: 4px;
        }

        .cover-card .cover-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .cover-card .cover-body .cover-tag {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 10px;
            letter-spacing: 0.3px;
        }

        /* ===== Honour / Data Row ===== */
        .honour-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 20px;
        }

        .honour-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            text-align: center;
            transition: var(--transition);
        }

        .honour-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-glow);
        }

        .honour-item .honour-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .honour-item .honour-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
        }

        .honour-item .honour-label {
            font-size: 0.85rem;
            color: var(--text-dim);
            font-weight: 400;
        }

        /* ===== Timeline / List ===== */
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

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

        .timeline-list li .tl-year {
            font-weight: 700;
            color: var(--primary);
            min-width: 72px;
            font-size: 1.1rem;
        }

        .timeline-list li .tl-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .timeline-list li .tl-text strong {
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(200, 16, 46, 0.2);
        }

        .faq-item .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        .faq-item .faq-q i {
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item .faq-a {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-block>* {
            position: relative;
            z-index: 1;
        }

        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-cta:hover {
            background: var(--accent-light);
            color: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            border-radius: 50px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            text-decoration: none;
        }

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

        /* ===== Buttons ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-primary-custom:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 16, 46, 0.3);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.3px;
        }

        .site-footer .footer-brand span {
            color: var(--primary);
        }

        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: var(--text-dim);
            margin-top: 10px;
            max-width: 320px;
            line-height: 1.6;
        }

        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            margin-bottom: 20px;
        }

        .site-footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 400;
            transition: var(--transition);
        }

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

        .site-footer .footer-social {
            display: flex;
            gap: 16px;
        }

        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

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

        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 0.82rem;
            color: var(--text-dim);
            text-align: center;
        }

        .site-footer .footer-bottom a {
            color: var(--text-muted);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== Mobile Toggle ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1060;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            color: var(--text-light);
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(12px);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .sidebar {
                width: var(--sidebar-collapsed);
                padding: 16px 8px;
            }

            .sidebar .sidebar-logo span,
            .sidebar .nav-item span,
            .sidebar .nav-divider,
            .sidebar .sidebar-footer {
                display: none;
            }

            .sidebar .sidebar-logo {
                justify-content: center;
                padding: 8px 0 16px;
            }

            .sidebar .sidebar-logo i {
                font-size: 1.8rem;
            }

            .sidebar .nav-item {
                justify-content: center;
                padding: 12px 8px;
            }

            .sidebar .nav-item i {
                font-size: 1.4rem;
                width: auto;
            }

            .main-content {
                margin-left: var(--sidebar-collapsed);
                width: calc(100% - var(--sidebar-collapsed));
            }

            .category-hero h1 {
                font-size: 2.6rem;
            }

            .container-custom {
                padding: 0 24px;
            }

            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: var(--sidebar-width);
                padding: 24px 16px;
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            }

            .sidebar.open {
                transform: translateX(0);
                box-shadow: 8px 0 40px rgba(0, 0, 0, 0.6);
            }

            .sidebar .sidebar-logo span,
            .sidebar .nav-item span,
            .sidebar .nav-divider,
            .sidebar .sidebar-footer {
                display: flex;
            }

            .sidebar .sidebar-logo {
                justify-content: flex-start;
            }

            .sidebar .nav-item {
                justify-content: flex-start;
            }

            .sidebar .nav-item i {
                width: 24px;
            }

            .sidebar-toggle {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                width: 100%;
            }

            .category-hero {
                min-height: 320px;
                padding: 60px 0 40px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero p {
                font-size: 1rem;
            }

            .hero-stats-row {
                gap: 24px;
            }

            .hero-stat-item .stat-number {
                font-size: 1.5rem;
            }

            .container-custom {
                padding: 0 20px;
            }

            .section-block {
                padding: 56px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section-sub {
                font-size: 0.95rem;
            }

            .cta-block {
                padding: 40px 24px;
            }

            .cta-block h2 {
                font-size: 1.5rem;
            }

            .cover-card .cover-body {
                padding: 16px 18px 20px;
            }

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

            .timeline-list li {
                flex-direction: column;
                gap: 4px;
            }

            .timeline-list li .tl-year {
                min-width: auto;
            }
        }

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

            .hero-stats-row {
                gap: 16px;
            }

            .hero-stat-item .stat-number {
                font-size: 1.3rem;
            }

            .hero-stat-item .stat-label {
                font-size: 0.75rem;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .container-custom {
                padding: 0 16px;
            }

            .card-modern {
                padding: 20px 16px;
            }

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

            .honour-item {
                padding: 16px 12px;
            }

            .honour-item .honour-num {
                font-size: 1.5rem;
            }

            .cta-block {
                padding: 32px 16px;
            }

            .cta-block h2 {
                font-size: 1.3rem;
            }

            .btn-cta {
                padding: 12px 24px;
                font-size: 0.9rem;
            }

            .site-footer .footer-links {
                gap: 6px 16px;
            }

            .site-footer .footer-links a {
                font-size: 0.82rem;
            }

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

            .faq-item .faq-q {
                font-size: 0.95rem;
            }
        }

        /* ===== Overlay for mobile ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1045;
            backdrop-filter: blur(2px);
        }

        .sidebar-overlay.active {
            display: block;
        }

        @media (max-width: 768px) {
            .sidebar-overlay.active {
                display: block;
            }
        }

        /* ===== Utility ===== */
        .text-primary-custom {
            color: var(--primary);
        }
        .text-accent {
            color: var(--accent);
        }
        .fw-800 {
            font-weight: 800;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mt-4 {
            margin-top: 24px;
        }