/* roulang page: index */
:root {
            --bg-main: #0F0F12;
            --bg-card: #16161C;
            --bg-card-hover: #1E1E26;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 46, 99, 0.35);
            --primary: #FF2E63;
            --primary-hover: #E01E5A;
            --accent-purple: #7B2CBF;
            --accent-gold: #FFA41B;
            --text-primary: #FFFFFF;
            --text-secondary: #D1D5DB;
            --text-muted: #9CA3AF;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 25px rgba(255, 46, 99, 0.3);
        }

        body {
            background-color: var(--bg-main);
            color: var(--text-secondary);
            font-family: var(--font-family);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        /* 导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 15, 18, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }

        .navbar-brand {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-primary) !important;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.5px;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
            display: inline-block;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            position: relative;
            transition: color 0.25s ease;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary) !important;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-brand-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #FFFFFF !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: none;
            box-shadow: 0 4px 15px rgba(255, 46, 99, 0.35);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }

        .btn-brand-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 46, 99, 0.5);
            color: #FFFFFF;
        }

        .btn-brand-outline {
            background: transparent;
            color: var(--text-primary) !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }

        .btn-brand-outline:hover {
            border-color: var(--primary);
            color: var(--primary) !important;
            background: rgba(255, 46, 99, 0.05);
            transform: translateY(-2px);
        }

        /* 统一标题与版块 */
        .section-wrap {
            padding: 5.5rem 0;
            position: relative;
        }

        .section-wrap.alt-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            margin-bottom: 3.5rem;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: rgba(255, 46, 99, 0.1);
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            border: 1px solid rgba(255, 46, 99, 0.2);
        }

        .section-title {
            color: var(--text-primary);
            font-size: 2.15rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Hero: 产品舞台居中，左右价值点与按钮组 */
        .hero-section {
            padding: 5rem 0 6rem;
            background: radial-gradient(circle at 50% 20%, rgba(123, 44, 191, 0.15) 0%, transparent 60%),
                        radial-gradient(circle at 80% 50%, rgba(255, 46, 99, 0.08) 0%, transparent 50%),
                        var(--bg-main);
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-title-group {
            text-align: center;
            max-width: 860px;
            margin: 0 auto 3rem;
        }

        .hero-h1 {
            color: var(--text-primary);
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 1.25rem;
        }

        .hero-desc {
            color: var(--text-secondary);
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 1.8rem;
        }

        .hero-stage-container {
            display: grid;
            grid-template-columns: 1fr 1.6fr 1fr;
            gap: 2rem;
            align-items: center;
            margin-top: 2rem;
        }

        .hero-stage-screen {
            position: relative;
            background: #000000;
            border: 2px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(255, 46, 99, 0.2);
            transition: all 0.4s ease;
        }

        .hero-stage-screen:hover {
            border-color: var(--primary);
            transform: scale(1.015);
        }

        .hero-screen-img {
            width: 100%;
            height: auto;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .hero-screen-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.75) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.5rem;
        }

        .hero-badge-live {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: rgba(255, 46, 99, 0.9);
            color: #FFF;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.65rem;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .hero-feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: all 0.3s ease;
            margin-bottom: 1.5rem;
        }

        .hero-feature-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }

        .feature-icon-box {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: rgba(255, 46, 99, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .feature-title {
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .feature-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* KPI 看板 */
        .kpi-board {
            background: linear-gradient(180deg, #131318 0%, #0F0F12 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 3.5rem 0;
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .kpi-item {
            position: relative;
            padding: 1rem;
        }

        .kpi-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border-color);
        }

        .kpi-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, #FFFFFF 0%, #E0E0E0 60%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .kpi-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.35rem;
        }

        .kpi-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 服务矩阵 / 频道分类 (板块 2) */
        .channel-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .channel-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: transparent;
            transition: background 0.3s ease;
        }

        .channel-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
            background: var(--bg-card-hover);
        }

        .channel-card:hover::before {
            background: linear-gradient(90deg, var(--primary), var(--accent-purple));
        }

        .channel-icon {
            font-size: 2rem;
            margin-bottom: 1.25rem;
            color: var(--primary);
        }

        .channel-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .channel-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .channel-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* 结果对比 (板块 3) */
        .compare-table-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-grid:last-child {
            border-bottom: none;
        }

        .compare-cell {
            padding: 1.35rem 1.75rem;
            display: flex;
            align-items: center;
        }

        .compare-cell.header {
            font-weight: 700;
            font-size: 1.05rem;
            background: #111115;
            color: var(--text-primary);
        }

        .compare-cell.highlight {
            background: rgba(255, 46, 99, 0.04);
            color: #FFFFFF;
            font-weight: 600;
            border-left: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
        }

        .compare-tag-good {
            color: #10B981;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.95rem;
        }

        .compare-tag-bad {
            color: #EF4444;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.95rem;
        }

        /* 方案流程 / 机制轴 (板块 4) */
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.2rem 1.8rem;
            position: relative;
            height: 100%;
            transition: all 0.3s ease;
        }

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

        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.08);
            position: absolute;
            top: 1.2rem;
            right: 1.5rem;
            line-height: 1;
        }

        .step-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .step-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* 里程碑 / 架构演进 (板块 5) */
        .milestone-timeline {
            position: relative;
            padding: 1rem 0;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .milestone-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2.5rem;
            position: relative;
        }

        .milestone-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .milestone-content {
            width: 45%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
        }

        .milestone-dot {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary);
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
        }

        .milestone-year {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
            letter-spacing: 1px;
        }

        .milestone-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .milestone-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* 精品案例墙 / 精选视觉 (板块 6) */
        .media-item-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .media-thumb-box {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #000;
        }

        .media-thumb-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .media-item-card:hover .media-thumb-img {
            transform: scale(1.06);
        }

        .media-badge {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(6px);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.55rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 164, 27, 0.3);
        }

        .media-duration {
            position: absolute;
            bottom: 0.75rem;
            right: 0.75rem;
            background: rgba(0, 0, 0, 0.75);
            color: #FFF;
            font-size: 0.75rem;
            padding: 0.15rem 0.5rem;
            border-radius: var(--radius-sm);
        }

        .media-body {
            padding: 1.35rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .media-title {
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .media-brief {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 资讯列表区 (板块 7 - CMS) */
        .cms-post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all 0.3s ease;
        }

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

        .cms-post-body {
            padding: 1.6rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .cms-post-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
        }

        .cms-post-category {
            color: var(--primary);
            background: rgba(255, 46, 99, 0.1);
            padding: 0.15rem 0.5rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
        }

        .cms-post-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }

        .cms-post-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.25rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }

        .cms-read-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* 平台保障承诺 (板块 8) */
        .guarantee-box {
            background: #121217;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: center;
            height: 100%;
            transition: all 0.3s ease;
        }

        .guarantee-box:hover {
            border-color: var(--primary);
            background: var(--bg-card);
        }

        .guarantee-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }

        .guarantee-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .guarantee-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* 合作伙伴技术支持 (板块 9) */
        .partner-logo-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
        }

        .partner-logo-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
        }

        /* 常见疑问 FAQ (板块 10) */
        .faq-accordion .accordion-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background-color: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 1.25rem 1.5rem;
            box-shadow: none !important;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background-color: #1A1A22;
            color: var(--primary);
        }

        .faq-accordion .accordion-button::after {
            filter: invert(1) grayscale(100%) brightness(200%);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(36%) sepia(93%) saturate(3015%) hue-rotate(328deg) brightness(101%) contrast(106%);
        }

        .faq-accordion .accordion-body {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            padding: 1.25rem 1.5rem 1.5rem;
            background-color: #14141A;
        }

        /* 底部聚合行动区 (板块 11) */
        .cta-banner-box {
            background: radial-gradient(circle at 50% 50%, rgba(255, 46, 99, 0.18) 0%, rgba(15, 15, 18, 0.95) 75%),
                        var(--bg-card);
            border: 1px solid rgba(255, 46, 99, 0.3);
            border-radius: var(--radius-xl);
            padding: 4.5rem 2rem;
            text-align: center;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
        }

        .cta-banner-title {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .cta-banner-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 2.2rem;
            line-height: 1.8;
        }

        /* 页脚 */
        .site-footer {
            background-color: #0B0B0E;
            border-top: 1px solid var(--border-color);
            padding: 4.5rem 0 2rem;
            font-size: 0.9rem;
        }

        .footer-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
        }

        .footer-desc {
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 1.5rem;
            font-size: 0.88rem;
        }

        .footer-heading {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            letter-spacing: 0.5px;
        }

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

        .footer-links li {
            margin-bottom: 0.65rem;
        }

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

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

        .footer-status-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.82rem;
            color: #10B981;
            background: rgba(16, 185, 129, 0.1);
            padding: 0.3rem 0.75rem;
            border-radius: 9999px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #10B981;
            box-shadow: 0 0 6px #10B981;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 3.5rem;
            padding-top: 2rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        /* 响应式微调 */
        @media (max-width: 991px) {
            .hero-stage-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .kpi-item:not(:last-child)::after {
                display: none;
            }
            .milestone-timeline::before {
                left: 15px;
            }
            .milestone-row, .milestone-row:nth-child(even) {
                flex-direction: row;
                justify-content: flex-start;
            }
            .milestone-dot {
                left: 15px;
            }
            .milestone-content {
                width: calc(100% - 45px);
                margin-left: 45px;
            }
            .compare-grid {
                grid-template-columns: 1fr 1fr;
            }
            .compare-cell:first-child {
                grid-column: 1 / -1;
                background: #15151B;
                font-weight: 700;
            }
        }

        @media (max-width: 576px) {
            .hero-h1 {
                font-size: 2.1rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .kpi-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner-title {
                font-size: 1.8rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-main: #0F0F12;
            --bg-card: #16161C;
            --bg-card-hover: #1E1E26;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 46, 99, 0.35);
            --primary: #FF2E63;
            --primary-hover: #E01E5A;
            --accent-purple: #7B2CBF;
            --accent-gold: #FFA41B;
            --text-primary: #FFFFFF;
            --text-secondary: #D1D5DB;
            --text-muted: #9CA3AF;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 25px rgba(255, 46, 99, 0.3);
        }
        body {
            background-color: var(--bg-main);
            color: var(--text-secondary);
            font-family: var(--font-family);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 15, 18, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-brand {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-primary) !important;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.5px;
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
            display: inline-block;
        }
        .nav-link {
            color: var(--text-secondary) !important;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            position: relative;
            transition: color 0.25s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary) !important;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-brand-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #FFFFFF !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: none;
            box-shadow: 0 4px 15px rgba(255, 46, 99, 0.35);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }
        .btn-brand-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 46, 99, 0.5);
            color: #FFFFFF;
        }
        .btn-brand-outline {
            background: transparent;
            color: var(--text-primary) !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }
        .btn-brand-outline:hover {
            border-color: var(--primary);
            color: var(--primary) !important;
            background: rgba(255, 46, 99, 0.05);
            transform: translateY(-2px);
        }
        .section-wrap {
            padding: 5rem 0;
            position: relative;
        }
        .section-wrap.alt-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: rgba(255, 46, 99, 0.1);
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            border: 1px solid rgba(255, 46, 99, 0.2);
        }
        .section-title {
            color: var(--text-primary);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            line-height: 1.3;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* 分类专属 Hero：前后对比对比面板 */
        .category-hero-section {
            padding: 4.5rem 0 4rem;
            background: radial-gradient(circle at 70% 30%, rgba(255, 46, 99, 0.12) 0%, transparent 60%),
                        radial-gradient(circle at 20% 80%, rgba(123, 44, 191, 0.1) 0%, transparent 50%),
                        var(--bg-main);
            border-bottom: 1px solid var(--border-color);
        }
        .category-h1 {
            color: var(--text-primary);
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.25rem;
        }
        .category-h1 span {
            color: var(--primary);
        }
        .category-intro {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 720px;
        }
        .filter-badge-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2.5rem;
        }
        .filter-item {
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.88rem;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .filter-item:hover, .filter-item.active {
            background: rgba(255, 46, 99, 0.15);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 对比面板 (Before / After 并置) */
        .compare-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .compare-card {
            background: rgba(15, 15, 18, 0.6);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            height: 100%;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .compare-card.highlight {
            border-color: var(--border-hover);
            background: linear-gradient(180deg, rgba(255, 46, 99, 0.06) 0%, rgba(22, 22, 28, 0.8) 100%);
        }
        .compare-tag {
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 1rem;
        }
        .compare-tag.legacy {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
        }
        .compare-tag.modern {
            background: var(--primary);
            color: #FFFFFF;
        }
        .compare-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-list li {
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }
        .compare-list li .icon-cross {
            color: #FF5252;
            font-weight: bold;
        }
        .compare-list li .icon-check {
            color: #00E676;
            font-weight: bold;
        }

        /* 媒体卡片栅格 */
        .media-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .media-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
        }
        .media-thumb-wrap {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            background-color: #121217;
            overflow: hidden;
        }
        .media-thumb {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .media-card:hover .media-thumb {
            transform: scale(1.05);
        }
        .badge-resolution {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(6px);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.15rem 0.5rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 164, 27, 0.3);
        }
        .badge-duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.8);
            color: #FFFFFF;
            font-size: 0.75rem;
            padding: 0.15rem 0.5rem;
            border-radius: 9999px;
            font-variant-numeric: tabular-nums;
        }
        .media-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .media-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .media-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }
        .media-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 0.8rem;
        }
        .media-heat {
            color: var(--primary);
            font-weight: 600;
        }

        /* 专题精选横幅 */
        .topic-banner {
            background: linear-gradient(135deg, rgba(123, 44, 191, 0.25) 0%, rgba(255, 46, 99, 0.18) 100%), var(--bg-card);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
        }
        .topic-badge {
            background: var(--accent-gold);
            color: #000000;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 0.75rem;
        }

        /* 体验调优指南卡片 */
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            height: 100%;
            transition: all 0.3s ease;
        }
        .guide-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }
        .guide-step {
            width: 36px;
            height: 36px;
            background: rgba(255, 46, 99, 0.1);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin-bottom: 1.25rem;
            border: 1px solid rgba(255, 46, 99, 0.3);
        }

        /* FAQ 组件 */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.25rem;
            transition: border-color 0.25s ease;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.15);
        }
        .faq-question {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .faq-question::before {
            content: 'Q';
            color: var(--primary);
            font-weight: 800;
        }
        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            margin: 0;
            padding-left: 1.4rem;
        }

        /* 底部转换区 */
        .cta-banner {
            background: radial-gradient(circle at 50% 50%, rgba(255, 46, 99, 0.18) 0%, rgba(22, 22, 28, 0.95) 75%), var(--bg-card);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-xl);
            padding: 3.5rem 2rem;
            text-align: center;
            box-shadow: var(--shadow-glow);
        }

        /* 页脚 */
        .site-footer {
            background: #0B0B0E;
            border-top: 1px solid var(--border-color);
            padding: 4.5rem 0 2rem;
            font-size: 0.9rem;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-desc {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .footer-status-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0.8rem;
            background: rgba(0, 230, 118, 0.08);
            border: 1px solid rgba(0, 230, 118, 0.2);
            border-radius: 9999px;
            font-size: 0.78rem;
            color: #00E676;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00E676;
            box-shadow: 0 0 6px #00E676;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.65rem;
        }
        .footer-links a {
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            margin-top: 3.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        @media (max-width: 991px) {
            .category-h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .compare-box {
                padding: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .category-h1 {
                font-size: 1.65rem;
            }
            .filter-badge-bar {
                gap: 0.5rem;
            }
            .filter-item {
                font-size: 0.8rem;
                padding: 0.3rem 0.8rem;
            }
        }

/* roulang page: article */
:root {
            --bg-main: #0F0F12;
            --bg-card: #16161C;
            --bg-card-hover: #1E1E26;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 46, 99, 0.35);
            --primary: #FF2E63;
            --primary-hover: #E01E5A;
            --accent-purple: #7B2CBF;
            --accent-gold: #FFA41B;
            --text-primary: #FFFFFF;
            --text-secondary: #D1D5DB;
            --text-muted: #9CA3AF;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 25px rgba(255, 46, 99, 0.3);
        }
        body {
            background-color: var(--bg-main);
            color: var(--text-secondary);
            font-family: var(--font-family);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 15, 18, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-brand {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-primary) !important;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.5px;
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
            display: inline-block;
        }
        .nav-link {
            color: var(--text-secondary) !important;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            position: relative;
            transition: color 0.25s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary) !important;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-brand-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #FFFFFF !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: none;
            box-shadow: 0 4px 15px rgba(255, 46, 99, 0.35);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }
        .btn-brand-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 46, 99, 0.5);
            color: #FFFFFF;
        }
        .btn-brand-outline {
            background: transparent;
            color: var(--text-primary) !important;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 9999px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
        }
        .btn-brand-outline:hover {
            border-color: var(--primary);
            color: var(--primary) !important;
            background: rgba(255, 46, 99, 0.05);
            transform: translateY(-2px);
        }
        .section-wrap {
            padding: 4.5rem 0;
            position: relative;
        }
        .section-wrap.alt-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: rgba(255, 46, 99, 0.1);
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            border: 1px solid rgba(255, 46, 99, 0.2);
        }
        .article-banner {
            position: relative;
            padding: 4rem 0 3.5rem;
            background: radial-gradient(circle at 75% 20%, rgba(123, 44, 191, 0.22) 0%, transparent 60%),
                        linear-gradient(180deg, rgba(15, 15, 18, 0.75) 0%, rgba(15, 15, 18, 0.98) 100%),
                        url('/assets/images/bee9d4594bad79c8.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-box {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
            flex-wrap: wrap;
        }
        .breadcrumb-box a:hover {
            color: var(--primary);
        }
        .article-h1 {
            color: var(--text-primary);
            font-size: 2.35rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 1.5rem;
            letter-spacing: -0.5px;
        }
        .meta-strip {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding-bottom: 0.5rem;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .meta-badge {
            background: rgba(255, 46, 99, 0.15);
            color: var(--primary);
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 46, 99, 0.25);
        }
        .lead-quote-box {
            background: linear-gradient(145deg, rgba(22, 22, 28, 0.85) 0%, rgba(30, 30, 38, 0.6) 100%);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-md);
            padding: 1.75rem 2rem;
            margin: 2.5rem 0;
            position: relative;
        }
        .lead-quote-title {
            color: var(--primary);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .lead-quote-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.8;
            margin: 0;
        }
        .article-rich-body {
            color: var(--text-secondary);
            font-size: 1.08rem;
            line-height: 1.95;
            letter-spacing: 0.2px;
        }
        .article-rich-body p {
            margin-bottom: 1.6rem;
        }
        .article-rich-body h2 {
            color: var(--text-primary);
            font-size: 1.75rem;
            font-weight: 700;
            margin-top: 2.75rem;
            margin-bottom: 1.25rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }
        .article-rich-body h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 45px;
            height: 2px;
            background: var(--primary);
        }
        .article-rich-body h3 {
            color: var(--text-primary);
            font-size: 1.35rem;
            font-weight: 600;
            margin-top: 2.2rem;
            margin-bottom: 1rem;
        }
        .article-rich-body ul, .article-rich-body ol {
            margin-bottom: 1.6rem;
            padding-left: 1.5rem;
        }
        .article-rich-body li {
            margin-bottom: 0.6rem;
        }
        .article-rich-body blockquote {
            background: var(--bg-card);
            border-left: 3px solid var(--accent-purple);
            padding: 1.25rem 1.75rem;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-style: normal;
            margin: 2rem 0;
        }
        .article-rich-body img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            margin: 2rem 0;
            box-shadow: var(--shadow-card);
        }
        .media-visual-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            margin: 2.5rem 0;
            position: relative;
            background: #000000;
        }
        .media-visual-frame img {
            width: 100%;
            height: auto;
            display: block;
            margin: 0;
            border: none;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .media-visual-frame:hover img {
            transform: scale(1.02);
        }
        .media-caption {
            padding: 0.9rem 1.2rem;
            background: rgba(22, 22, 28, 0.95);
            font-size: 0.88rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .interactive-bar {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 2rem;
            margin: 3.5rem 0 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.25rem;
        }
        .interactive-actions {
            display: flex;
            gap: 0.8rem;
            align-items: center;
        }
        .btn-action-tool {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            padding: 0.5rem 1.2rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-action-tool:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 46, 99, 0.08);
            transform: translateY(-2px);
        }
        .nav-switch-row {
            margin: 2.5rem 0;
        }
        .nav-switch-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            height: 100%;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .nav-switch-card:hover {
            border-color: var(--primary);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .switch-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.4rem;
        }
        .switch-title {
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.5;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .related-thumb {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #000;
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.06);
        }
        .related-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: rgba(15, 15, 18, 0.85);
            backdrop-filter: blur(6px);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 46, 99, 0.3);
        }
        .related-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .related-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        .related-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 0.75rem;
        }
        .sidebar-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            margin-bottom: 2rem;
        }
        .sidebar-title {
            color: var(--text-primary);
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .feature-item-pill {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .feature-item-pill:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .feature-icon-badge {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(255, 46, 99, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .feature-info h5 {
            color: var(--text-primary);
            font-size: 0.95rem;
            margin-bottom: 0.2rem;
            font-weight: 600;
        }
        .feature-info p {
            color: var(--text-muted);
            font-size: 0.82rem;
            margin: 0;
            line-height: 1.4;
        }
        .compliance-notice-box {
            background: rgba(22, 22, 28, 0.6);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-top: 2rem;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .compliance-notice-box strong {
            color: var(--text-primary);
        }
        .empty-article-state {
            padding: 6rem 2rem;
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .empty-article-state h2 {
            color: var(--text-primary);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .site-footer {
            background-color: #0B0B0E;
            border-top: 1px solid var(--border-color);
            padding: 5rem 0 2rem;
            color: var(--text-muted);
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.25rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }
        .footer-status-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            color: #10B981;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10B981;
            box-shadow: 0 0 8px #10B981;
        }
        .footer-heading {
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            margin-top: 4rem;
            padding-top: 1.75rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            text-align: center;
        }