/* roulang page: index */
:root {
            --bg-deep: #0E1117;
            --bg-card: #161B22;
            --bg-elevated: #21262D;
            --primary-accent: #00FF9D;
            --primary-glow: rgba(0, 255, 157, 0.15);
            --aux-gold: #D4AF37;
            --text-main: #E6EDF3;
            --text-muted: #8B949E;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 255, 157, 0.35);
            --transition-curve: 240ms cubic-bezier(0.16, 1, 0.3, 1);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "DIN Alternate", "SF Pro Display", SFMono-Regular, Consolas, monospace;
        }

        /* Reset & Base Overrides */
        * { box-sizing: border-box; }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: var(--font-stack);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-curve); }
        a:hover { color: var(--primary-accent); }

        /* Typography & Utility Elements */
        .font-mono { font-family: var(--font-mono); }
        .text-accent { color: var(--primary-accent) !important; }
        .text-gold { color: var(--aux-gold) !important; }
        .badge-tactical {
            background: var(--primary-glow);
            color: var(--primary-accent);
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
            font-size: 0.75rem;
            font-family: var(--font-mono);
            padding: 0.2rem 0.55rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .section-header {
            margin-bottom: 2.75rem;
            position: relative;
        }
        .section-header .section-tag {
            font-size: 0.8rem;
            font-family: var(--font-mono);
            color: var(--primary-accent);
            margin-bottom: 0.4rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: block;
        }
        .section-header h2 {
            font-size: 1.95rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.02em;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .section-header h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 1.4rem;
            background: var(--primary-accent);
            border-radius: 1px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 780px;
            margin: 0;
        }

        /* Buttons Customization */
        .btn-stream {
            background-color: var(--primary-accent);
            color: #0E1117;
            font-weight: 700;
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            border: 1px solid var(--primary-accent);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        .btn-stream:hover {
            background-color: #05e58d;
            color: #000;
            box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline-metal {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border: 1px solid var(--border-dim);
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            font-size: 0.95rem;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        .btn-outline-metal:hover {
            background: var(--bg-elevated);
            color: #FFF;
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* Card Framework */
        .spec-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.75rem;
            position: relative;
            transition: var(--transition-curve);
            height: 100%;
        }
        .spec-card:hover {
            border-color: var(--border-highlight);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            transform: translateY(-4px);
        }

        /* Double-Layer Navigation */
        .header-wrapper {
            position: relative;
            z-index: 1050;
        }
        .nav-status-bar {
            background: #090B0F;
            border-bottom: 1px solid var(--border-dim);
            padding: 0.4rem 0;
            font-size: 0.78rem;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }
        .nav-main-bar {
            background: rgba(14, 17, 23, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-dim);
            transition: all 0.3s ease;
        }
        .header-scrolled .nav-status-bar {
            margin-top: -38px;
            opacity: 0;
            pointer-events: none;
        }
        .header-scrolled .nav-main-bar {
            border-bottom-color: var(--border-highlight);
            box-shadow: 0 4px 20px rgba(0,0,0,0.6);
        }
        .brand-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .brand-logo i {
            color: var(--primary-accent);
            font-size: 1.35rem;
        }
        .brand-ver {
            font-family: var(--font-mono);
            font-size: 0.65rem;
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            padding: 1px 5px;
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
        }
        .nav-link-custom {
            color: var(--text-main);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 3px;
            display: inline-block;
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.05);
        }

        /* Hero Section */
        .hero-section {
            padding: 4.5rem 0 3.5rem;
            background: radial-gradient(circle at 80% 20%, rgba(0, 255, 157, 0.04) 0%, transparent 60%);
            border-bottom: 1px solid var(--border-dim);
        }
        .hero-title {
            font-size: 2.85rem;
            font-weight: 800;
            line-height: 1.25;
            color: #FFFFFF;
            letter-spacing: -0.03em;
            margin-bottom: 1.2rem;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 650px;
        }
        .hero-spec-grid {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.5rem;
        }
        .spec-item {
            border-left: 2px solid var(--border-dim);
            padding-left: 1rem;
        }
        .spec-item.active {
            border-left-color: var(--primary-accent);
        }

        /* Pain Points Grid */
        .pain-card {
            background: var(--bg-card);
            border-left: 3px solid #ff4d4f;
            padding: 1.25rem 1.5rem;
            border-top: 1px solid var(--border-dim);
            border-right: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
            height: 100%;
        }
        .gain-card {
            background: var(--bg-card);
            border-left: 3px solid var(--primary-accent);
            padding: 1.25rem 1.5rem;
            border-top: 1px solid var(--border-dim);
            border-right: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
            height: 100%;
        }

        /* Step Process */
        .step-num {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-accent);
            line-height: 1;
            margin-bottom: 0.8rem;
        }

        /* Channel Feature Banner */
        .channel-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            overflow: hidden;
            position: relative;
            transition: var(--transition-curve);
        }
        .channel-card:hover {
            border-color: var(--primary-accent);
            transform: translateY(-4px);
        }
        .channel-thumb-box {
            height: 170px;
            background: linear-gradient(135deg, #1f242c 0%, #11141a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            border-bottom: 1px solid var(--border-dim);
        }
        .channel-thumb-box i {
            font-size: 3.5rem;
            color: rgba(255, 255, 255, 0.12);
            transition: var(--transition-curve);
        }
        .channel-card:hover .channel-thumb-box i {
            color: var(--primary-accent);
            transform: scale(1.08);
        }

        /* Hardware Metric Table */
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            overflow: hidden;
        }
        .table-custom th, .table-custom td {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.9rem;
        }
        .table-custom th {
            background: var(--bg-elevated);
            color: #FFFFFF;
            font-weight: 600;
            font-family: var(--font-mono);
        }
        .table-custom tr:last-child td {
            border-bottom: none;
        }
        .table-custom tr.highlight-row {
            background: rgba(0, 255, 157, 0.03);
        }

        /* CMS Article List */
        .article-strip {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.25rem 1.5rem;
            margin-bottom: 1rem;
            transition: var(--transition-curve);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .article-strip:hover {
            border-color: var(--border-highlight);
            transform: translateX(4px);
        }

        /* Terminal Safety Box */
        .terminal-box {
            background: #090B0F;
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.5rem;
            font-family: var(--font-mono);
            font-size: 0.85rem;
            color: #A0AEC0;
        }
        .terminal-box .term-head {
            border-bottom: 1px solid var(--border-dim);
            padding-bottom: 0.75rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* Accordion Custom */
        .accordion-item-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }
        .accordion-btn-custom {
            width: 100%;
            background: transparent;
            border: none;
            padding: 1.25rem 1.5rem;
            color: #FFF;
            font-weight: 600;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: var(--transition-curve);
        }
        .accordion-btn-custom:hover {
            color: var(--primary-accent);
        }
        .accordion-content-custom {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
        }

        /* Footer */
        .footer-custom {
            background: #080A0D;
            border-top: 1px solid var(--border-dim);
            padding: 4rem 0 2rem;
            font-size: 0.88rem;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
        }
        .footer-link {
            color: var(--text-muted);
            display: block;
            margin-bottom: 0.5rem;
        }
        .footer-link:hover {
            color: var(--primary-accent);
        }

        /* Responsive Fixes */
        @media (max-width: 991px) {
            .hero-title { font-size: 2.2rem; }
            .section-header h2 { font-size: 1.6rem; }
            .nav-status-bar { display: none; }
            .article-strip { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: article */
:root {
            --bg-deep: #0E1117;
            --bg-card: #161B22;
            --bg-elevated: #21262D;
            --primary-accent: #00FF9D;
            --primary-glow: rgba(0, 255, 157, 0.15);
            --aux-gold: #D4AF37;
            --text-main: #E6EDF3;
            --text-muted: #8B949E;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 255, 157, 0.35);
            --transition-curve: 240ms cubic-bezier(0.16, 1, 0.3, 1);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "DIN Alternate", "SF Pro Display", SFMono-Regular, Consolas, monospace;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: var(--font-stack);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-curve); }
        a:hover { color: var(--primary-accent); }
        .text-accent { color: var(--primary-accent) !important; }
        .text-gold { color: var(--aux-gold) !important; }
        .badge-tactical {
            background: var(--primary-glow);
            color: var(--primary-accent);
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
            font-size: 0.75rem;
            font-family: var(--font-mono);
            padding: 0.2rem 0.55rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .header-wrapper {
            position: relative;
            z-index: 1050;
        }
        .nav-status-bar {
            background: #090B0F;
            border-bottom: 1px solid var(--border-dim);
            padding: 0.4rem 0;
            font-size: 0.78rem;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }
        .nav-main-bar {
            background: rgba(14, 17, 23, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-dim);
            transition: all 0.3s ease;
        }
        .header-scrolled .nav-status-bar {
            margin-top: -38px;
            opacity: 0;
            pointer-events: none;
        }
        .header-scrolled .nav-main-bar {
            border-bottom-color: var(--border-highlight);
            box-shadow: 0 4px 20px rgba(0,0,0,0.6);
        }
        .brand-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .brand-logo i {
            color: var(--primary-accent);
            font-size: 1.35rem;
        }
        .brand-ver {
            font-family: var(--font-mono);
            font-size: 0.65rem;
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            padding: 1px 5px;
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
        }
        .nav-link-custom {
            color: var(--text-main);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.4rem 0.85rem;
            border-radius: 3px;
            transition: var(--transition-curve);
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: var(--primary-accent);
            background: rgba(255, 255, 255, 0.03);
        }
        .btn-stream {
            background-color: var(--primary-accent);
            color: #0E1117;
            font-weight: 700;
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            border: 1px solid var(--primary-accent);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        .btn-stream:hover {
            background-color: #05e58d;
            color: #000;
            box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline-metal {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border: 1px solid var(--border-dim);
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            font-size: 0.95rem;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        .btn-outline-metal:hover {
            background: var(--bg-elevated);
            color: #FFF;
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }
        .spec-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.75rem;
            position: relative;
            transition: var(--transition-curve);
        }
        .spec-card:hover {
            border-color: var(--border-highlight);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            transform: translateY(-4px);
        }
        /* Article Header & Main Styles */
        .article-hero {
            padding: 3.5rem 0 2.5rem;
            border-bottom: 1px solid var(--border-dim);
            background: radial-gradient(circle at 50% 0%, rgba(0, 255, 157, 0.05) 0%, transparent 70%);
        }
        .article-breadcrumbs {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .article-title-main {
            font-size: 2.35rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.02em;
            line-height: 1.35;
            margin-bottom: 1.5rem;
        }
        .article-lead-box {
            background: var(--bg-card);
            border-left: 4px solid var(--primary-accent);
            border-top: 1px solid var(--border-dim);
            border-right: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
            padding: 1.5rem 1.75rem;
            border-radius: 0 4px 4px 0;
            margin-bottom: 2.5rem;
            color: var(--text-main);
            font-size: 1.05rem;
            line-height: 1.8;
            position: relative;
        }
        .article-body-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #D1D5DB;
        }
        .article-body-content p {
            margin-bottom: 1.65rem;
        }
        .article-body-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .article-body-content h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 1.25rem;
            background: var(--primary-accent);
        }
        .article-body-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #F3F4F6;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-body-content img {
            max-width: 100%;
            height: auto;
            border-radius: 4px;
            border: 1px solid var(--border-dim);
            margin: 1.5rem 0;
        }
        .benchmark-score-card {
            background: #11151C;
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.5rem;
        }
        .metric-score-num {
            font-family: var(--font-mono);
            font-size: 3rem;
            font-weight: 800;
            line-height: 1;
            color: var(--primary-accent);
        }
        .progress-bar-custom {
            height: 6px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 0.5rem;
        }
        .progress-fill {
            height: 100%;
            background: var(--primary-accent);
            border-radius: 3px;
        }
        .interactive-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.75rem;
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            margin: 3rem 0 2rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .nav-relay-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.25rem 1.5rem;
            transition: var(--transition-curve);
            display: block;
            height: 100%;
        }
        .nav-relay-card:hover {
            border-color: var(--border-highlight);
            transform: translateY(-2px);
        }
        /* Footer Customization */
        .footer-custom {
            background: #090B0F;
            border-top: 1px solid var(--border-dim);
            padding: 4.5rem 0 2rem;
            margin-top: 5rem;
        }
        .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1.2rem;
        }
        .footer-link {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0.65rem;
            transition: var(--transition-curve);
        }
        .footer-link:hover {
            color: var(--primary-accent);
            padding-left: 4px;
        }
        @media (max-width: 991px) {
            .article-title-main { font-size: 1.85rem; }
            .nav-status-bar { display: none !important; }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0E1117;
            --bg-card: #161B22;
            --bg-elevated: #21262D;
            --primary-accent: #00FF9D;
            --primary-glow: rgba(0, 255, 157, 0.15);
            --aux-gold: #D4AF37;
            --text-main: #E6EDF3;
            --text-muted: #8B949E;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 255, 157, 0.35);
            --transition-curve: 240ms cubic-bezier(0.16, 1, 0.3, 1);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "DIN Alternate", "SF Pro Display", SFMono-Regular, Consolas, monospace;
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: var(--font-stack);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition-curve); }
        a:hover { color: var(--primary-accent); }
        .text-accent { color: var(--primary-accent) !important; }
        .text-gold { color: var(--aux-gold) !important; }

        .badge-tactical {
            background: var(--primary-glow);
            color: var(--primary-accent);
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
            font-size: 0.75rem;
            font-family: var(--font-mono);
            padding: 0.2rem 0.55rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .section-header {
            margin-bottom: 2.5rem;
            position: relative;
        }

        .section-header .section-tag {
            font-size: 0.8rem;
            font-family: var(--font-mono);
            color: var(--primary-accent);
            margin-bottom: 0.4rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: block;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .section-header h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 1.35rem;
            background: var(--primary-accent);
            border-radius: 1px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 820px;
            margin: 0;
        }

        /* Buttons Customization */
        .btn-stream {
            background-color: var(--primary-accent);
            color: #0E1117;
            font-weight: 700;
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            border: 1px solid var(--primary-accent);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-stream:hover {
            background-color: #05e58d;
            color: #000;
            box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-metal {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border: 1px solid var(--border-dim);
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            font-size: 0.95rem;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-outline-metal:hover {
            background: var(--bg-elevated);
            color: #FFF;
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* Navigation */
        .header-wrapper {
            position: relative;
            z-index: 1050;
        }

        .nav-status-bar {
            background: #090B0F;
            border-bottom: 1px solid var(--border-dim);
            padding: 0.4rem 0;
            font-size: 0.78rem;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .nav-main-bar {
            background: rgba(14, 17, 23, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-dim);
            transition: all 0.3s ease;
        }

        .header-scrolled .nav-status-bar {
            margin-top: -38px;
            opacity: 0;
            pointer-events: none;
        }

        .header-scrolled .nav-main-bar {
            border-bottom-color: var(--border-highlight);
            box-shadow: 0 4px 20px rgba(0,0,0,0.6);
        }

        .brand-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .brand-logo i {
            color: var(--primary-accent);
            font-size: 1.35rem;
        }

        .brand-ver {
            font-family: var(--font-mono);
            font-size: 0.65rem;
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            padding: 1px 5px;
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
        }

        .nav-link-custom {
            color: var(--text-main);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.45rem 0.85rem;
            border-radius: 2px;
            display: inline-flex;
            align-items: center;
        }

        .nav-link-custom:hover {
            color: var(--primary-accent);
            background: rgba(255, 255, 255, 0.03);
        }

        .nav-link-custom.active {
            color: var(--primary-accent);
            background: var(--primary-glow);
            border: 1px solid var(--border-highlight);
        }

        /* Card Framework */
        .spec-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.75rem;
            position: relative;
            transition: var(--transition-curve);
            height: 100%;
        }

        .spec-card:hover {
            border-color: var(--border-highlight);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            transform: translateY(-4px);
        }

        /* Category Hero Banner */
        .category-hero-section {
            padding: 3.5rem 0 2.5rem;
            background: radial-gradient(circle at top right, rgba(0, 255, 157, 0.06), transparent 50%), #0E1117;
            border-bottom: 1px solid var(--border-dim);
        }

        .hero-spec-tag {
            font-family: var(--font-mono);
            font-size: 0.78rem;
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            border: 1px solid var(--border-highlight);
            padding: 0.25rem 0.65rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            border-radius: 2px;
            margin-bottom: 1.25rem;
        }

        .category-h1 {
            font-size: 2.35rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .hero-digest-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-left: 3px solid var(--primary-accent);
            padding: 1.5rem;
            border-radius: 3px;
        }

        /* Filter Tuning Bar */
        .filter-deck {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            padding: 1rem 1.5rem;
            border-radius: 4px;
            margin-bottom: 2.5rem;
        }

        .filter-pill {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-muted);
            border: 1px solid var(--border-dim);
            border-radius: 2px;
            padding: 0.35rem 0.9rem;
            font-size: 0.85rem;
            font-family: var(--font-mono);
            cursor: pointer;
            transition: var(--transition-curve);
        }

        .filter-pill.active, .filter-pill:hover {
            background: var(--primary-glow);
            border-color: var(--border-highlight);
            color: var(--primary-accent);
        }

        /* Grid Cards */
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: var(--transition-curve);
        }

        .post-card:hover {
            border-color: var(--border-highlight);
            transform: translateY(-4px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }

        .post-card-cover {
            height: 160px;
            background: #11151c;
            border-bottom: 1px solid var(--border-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background-size: cover;
            background-position: center;
        }

        .post-card-badge {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            font-family: var(--font-mono);
            font-size: 0.7rem;
            padding: 0.15rem 0.45rem;
            border-radius: 2px;
            background: rgba(14, 17, 23, 0.85);
            border: 1px solid var(--border-dim);
            color: var(--aux-gold);
        }

        .post-card-body {
            padding: 1.4rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .post-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.45;
            margin-bottom: 0.75rem;
        }

        .post-card-title a:hover {
            color: var(--primary-accent);
        }

        .post-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }

        .post-card-meta {
            font-family: var(--font-mono);
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-dim);
            padding-top: 0.85rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* Benchmark Featured Unit */
        .benchmark-feature-card {
            background: linear-gradient(135deg, #161B22 0%, #0F1318 100%);
            border: 1px solid var(--border-highlight);
            border-radius: 4px;
            padding: 2.25rem;
            position: relative;
            overflow: hidden;
        }

        .score-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            border: 2px solid var(--primary-accent);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--primary-glow);
            box-shadow: 0 0 15px rgba(0, 255, 157, 0.2);
        }

        .score-num {
            font-family: var(--font-mono);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--primary-accent);
            line-height: 1;
        }

        .score-label {
            font-size: 0.62rem;
            font-family: var(--font-mono);
            color: var(--text-muted);
            text-transform: uppercase;
        }

        /* Comparison Table */
        .matrix-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            overflow: hidden;
            background: var(--bg-card);
        }

        .matrix-table th {
            background: var(--bg-elevated);
            color: #FFFFFF;
            font-size: 0.88rem;
            font-weight: 700;
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--border-dim);
            font-family: var(--font-mono);
        }

        .matrix-table td {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--border-dim);
            color: var(--text-main);
            font-size: 0.9rem;
        }

        .matrix-table tr:last-child td {
            border-bottom: none;
        }

        .matrix-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        /* Tag Array */
        .hardware-tag {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            padding: 0.5rem 1rem;
            border-radius: 2px;
            font-size: 0.85rem;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition-curve);
        }

        .hardware-tag i {
            color: var(--primary-accent);
            font-size: 0.75rem;
        }

        .hardware-tag:hover {
            border-color: var(--primary-accent);
            color: var(--primary-accent);
            background: var(--primary-glow);
        }

        /* FAQ Accordion */
        .accordion-item-tech {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 3px;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .accordion-header-tech {
            padding: 1.15rem 1.4rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            color: #FFFFFF;
            transition: var(--transition-curve);
        }

        .accordion-header-tech:hover {
            background: var(--bg-elevated);
            color: var(--primary-accent);
        }

        .accordion-body-tech {
            padding: 0 1.4rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            border-top: 1px solid rgba(255, 255, 255, 0.03);
            padding-top: 0.9rem;
        }

        /* Footer */
        .footer-custom {
            background: #080A0D;
            border-top: 1px solid var(--border-dim);
            padding: 4.5rem 0 2rem;
            margin-top: 5rem;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #FFF;
            letter-spacing: -0.01em;
            margin-bottom: 1.25rem;
        }

        .footer-link {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0.6rem;
            display: block;
        }

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

        @media (max-width: 991px) {
            .category-h1 { font-size: 1.85rem; }
            .section-header h2 { font-size: 1.5rem; }
            .benchmark-feature-card { padding: 1.5rem; }
            .score-circle { width: 65px; height: 65px; }
            .score-num { font-size: 1.35rem; }
            .filter-deck { overflow-x: auto; white-space: nowrap; }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0E1117;
            --bg-card: #161B22;
            --bg-elevated: #21262D;
            --primary-accent: #00FF9D;
            --primary-glow: rgba(0, 255, 157, 0.15);
            --aux-gold: #D4AF37;
            --text-main: #E6EDF3;
            --text-muted: #8B949E;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 255, 157, 0.35);
            --transition-curve: 240ms cubic-bezier(0.16, 1, 0.3, 1);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "DIN Alternate", "SF Pro Display", SFMono-Regular, Consolas, monospace;
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: var(--font-stack);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition-curve); }
        a:hover { color: var(--primary-accent); }
        .text-accent { color: var(--primary-accent) !important; }
        .text-gold { color: var(--aux-gold) !important; }
        .font-mono { font-family: var(--font-mono); }

        .badge-tactical {
            background: var(--primary-glow);
            color: var(--primary-accent);
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
            font-size: 0.75rem;
            font-family: var(--font-mono);
            padding: 0.2rem 0.55rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .badge-gold {
            background: rgba(212, 175, 55, 0.15);
            color: var(--aux-gold);
            border: 1px solid rgba(212, 175, 55, 0.3);
            border-radius: 2px;
            font-size: 0.75rem;
            font-family: var(--font-mono);
            padding: 0.2rem 0.55rem;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .section-header {
            margin-bottom: 2.5rem;
            position: relative;
        }

        .section-header .section-tag {
            font-size: 0.8rem;
            font-family: var(--font-mono);
            color: var(--primary-accent);
            margin-bottom: 0.4rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: block;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.02em;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .section-header h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 1.4rem;
            background: var(--primary-accent);
            border-radius: 1px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 820px;
            margin: 0;
        }

        /* Buttons Customization */
        .btn-stream {
            background-color: var(--primary-accent);
            color: #0E1117;
            font-weight: 700;
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            border: 1px solid var(--primary-accent);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-stream:hover {
            background-color: #05e58d;
            color: #000;
            box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-metal {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border: 1px solid var(--border-dim);
            border-radius: 3px;
            padding: 0.65rem 1.6rem;
            font-size: 0.95rem;
            transition: var(--transition-curve);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-outline-metal:hover {
            background: var(--bg-elevated);
            color: #FFF;
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* Card Framework */
        .spec-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.75rem;
            position: relative;
            transition: var(--transition-curve);
            height: 100%;
        }

        .spec-card:hover {
            border-color: var(--border-highlight);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            transform: translateY(-4px);
        }

        /* Double-Layer Navigation */
        .header-wrapper {
            position: relative;
            z-index: 1050;
        }

        .nav-status-bar {
            background: #090B0F;
            border-bottom: 1px solid var(--border-dim);
            padding: 0.4rem 0;
            font-size: 0.78rem;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .nav-main-bar {
            background: rgba(14, 17, 23, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-dim);
            transition: all 0.3s ease;
        }

        .header-scrolled .nav-status-bar {
            margin-top: -38px;
            opacity: 0;
            pointer-events: none;
        }

        .header-scrolled .nav-main-bar {
            border-bottom-color: var(--border-highlight);
            box-shadow: 0 4px 20px rgba(0,0,0,0.6);
        }

        .brand-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .brand-logo i {
            color: var(--primary-accent);
            font-size: 1.35rem;
        }

        .brand-ver {
            font-family: var(--font-mono);
            font-size: 0.65rem;
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            padding: 1px 5px;
            border: 1px solid var(--border-highlight);
            border-radius: 2px;
        }

        .nav-link-custom {
            color: var(--text-main);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.4rem 0.85rem;
            border-radius: 3px;
            transition: var(--transition-curve);
        }

        .nav-link-custom:hover {
            color: #FFF;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link-custom.active {
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.08);
            border: 1px solid rgba(0, 255, 157, 0.2);
        }

        /* Category Hero / Header */
        .category-hero {
            background: linear-gradient(180deg, #121720 0%, #0E1117 100%);
            border-bottom: 1px solid var(--border-dim);
            padding: 3.5rem 0 3rem;
            position: relative;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 450px;
            height: 100%;
            background: radial-gradient(circle at top right, rgba(0, 255, 157, 0.06), transparent 70%);
            pointer-events: none;
        }

        .category-h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .metric-ticker {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            padding: 1.25rem;
            border-radius: 4px;
        }

        .metric-item-val {
            font-family: var(--font-mono);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary-accent);
        }

        .metric-item-lbl {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Filter Capsule Toolbar */
        .filter-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            padding: 1.25rem;
            margin-bottom: 2rem;
        }

        .filter-capsule-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dim);
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 0.35rem 0.9rem;
            border-radius: 2px;
            font-family: var(--font-mono);
            transition: var(--transition-curve);
        }

        .filter-capsule-btn:hover, .filter-capsule-btn.active {
            color: #0E1117;
            background: var(--primary-accent);
            border-color: var(--primary-accent);
            font-weight: 600;
        }

        /* Content Grid Card */
        .content-card-media {
            height: 165px;
            background: #11151c;
            border-bottom: 1px solid var(--border-dim);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .content-card-media i.bg-icon {
            font-size: 4rem;
            color: rgba(255, 255, 255, 0.04);
            transition: var(--transition-curve);
        }

        .spec-card:hover .content-card-media i.bg-icon {
            transform: scale(1.1);
            color: rgba(0, 255, 157, 0.1);
        }

        .badge-overlay-res {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
        }

        .badge-overlay-score {
            position: absolute;
            bottom: 0.75rem;
            right: 0.75rem;
            font-family: var(--font-mono);
            font-weight: 700;
            background: rgba(0, 0, 0, 0.85);
            color: var(--aux-gold);
            padding: 0.15rem 0.5rem;
            border: 1px solid rgba(212, 175, 55, 0.35);
            font-size: 0.75rem;
            border-radius: 2px;
        }

        /* Benchmark Specs Table */
        .benchmark-table-box {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 4px;
            overflow: hidden;
        }

        .benchmark-table-box table {
            margin-bottom: 0;
            color: var(--text-main);
        }

        .benchmark-table-box th {
            background: #11141A;
            border-bottom: 1px solid var(--border-dim);
            color: var(--text-muted);
            font-family: var(--font-mono);
            font-size: 0.85rem;
            text-transform: uppercase;
            padding: 1rem 1.25rem;
        }

        .benchmark-table-box td {
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            padding: 1rem 1.25rem;
            vertical-align: middle;
            font-size: 0.92rem;
        }

        .benchmark-table-box tr:last-child td {
            border-bottom: none;
        }

        /* Accordion FAQ Customization */
        .custom-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            margin-bottom: 0.75rem;
            border-radius: 4px !important;
            overflow: hidden;
        }

        .custom-accordion .accordion-button {
            background: var(--bg-card);
            color: #FFFFFF;
            font-weight: 600;
            padding: 1.2rem 1.5rem;
            box-shadow: none;
            display: flex;
            gap: 0.75rem;
            align-items: center;
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-accent);
            background: rgba(0, 255, 157, 0.04);
            border-bottom: 1px solid var(--border-dim);
        }

        .custom-accordion .accordion-button::after {
            filter: invert(1) grayscale(100%);
            transition: var(--transition-curve);
        }

        .custom-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(72%) sepia(85%) saturate(410%) hue-rotate(97deg) brightness(105%) contrast(105%);
        }

        .custom-accordion .accordion-body {
            color: var(--text-muted);
            font-size: 0.95rem;
            padding: 1.25rem 1.5rem;
            background: #13171f;
            line-height: 1.8;
        }

        /* Footer Customization */
        .footer-custom {
            background: #080A0D;
            border-top: 1px solid var(--border-dim);
            padding: 4.5rem 0 2rem;
            margin-top: 5rem;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #FFF;
            margin-bottom: 1.25rem;
        }

        .footer-link {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.7rem;
            transition: var(--transition-curve);
        }

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

        /* Mobile adjustments */
        @media (max-width: 991px) {
            .metric-ticker {
                grid-template-columns: 1fr;
            }
            .category-h1 {
                font-size: 1.85rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}