/* roulang page: index */
:root {
            --primary: #4f46e5;
            --primary-light: #6366f1;
            --primary-dark: #3730a3;
            --accent: #f97316;
            --accent-light: #fb923c;
            --accent-glow: #ff6b35;
            --bg-page: #f8f9fb;
            --bg-dark: #0a0a14;
            --bg-hud: #111122;
            --text-main: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border-subtle: #e5e7eb;
            --border-hud: #1e1e3a;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.75rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Noto Sans SC', 'system-ui', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.97);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--primary-dark);
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

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

        .logo-icon {
            display: none;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1rem;
            flex-shrink: 0;
        }

        @media (max-width: 520px) {
            .logo-icon {
                display: flex;
            }
            .logo-text-full {
                display: none;
            }
            .logo-text-short {
                display: inline;
                font-size: 1rem;
            }
        }

        @media (min-width: 521px) {
            .logo-text-short {
                display: none;
            }
            .logo-text-full {
                display: inline;
            }
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.925rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(79, 70, 229, 0.04);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.08);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #f3f4f6;
            border-radius: var(--radius-lg);
            padding: 8px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1.5px solid transparent;
            min-width: 180px;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
        }

        .search-box i {
            color: #9ca3af;
            font-size: 0.85rem;
        }

        .search-box input {
            border: none;
            background: transparent;
            font-size: 0.875rem;
            color: var(--text-main);
            width: 100%;
        }

        .search-box input::placeholder {
            color: #b0b7c3;
        }

        .btn-nav-cta {
            padding: 9px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-lg);
            font-weight: 600;
            font-size: 0.875rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
        }

        .btn-nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.45);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            z-index: 1001;
        }

        .hamburger:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 860px) {
            .nav-links {
                display: none;
            }
            .search-box {
                display: none;
            }
            .btn-nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                z-index: 999;
                flex-direction: column;
                padding: 24px 20px;
                gap: 8px;
                overflow-y: auto;
            }
            .mobile-menu.open {
                display: flex;
            }
            .mobile-menu a {
                display: block;
                padding: 14px 20px;
                border-radius: var(--radius-md);
                font-weight: 500;
                font-size: 1.05rem;
                color: var(--text-main);
                transition: all var(--transition-fast);
            }
            .mobile-menu a:hover,
            .mobile-menu a.active {
                background: rgba(79, 70, 229, 0.06);
                color: var(--primary);
            }
            .mobile-menu .mobile-cta {
                margin-top: 12px;
                text-align: center;
                background: var(--primary);
                color: #fff;
                font-weight: 600;
                padding: 14px 20px;
                border-radius: var(--radius-lg);
            }
            .mobile-menu .mobile-search {
                margin-top: 8px;
                display: flex;
                align-items: center;
                background: #f3f4f6;
                border-radius: var(--radius-lg);
                padding: 10px 16px;
                gap: 10px;
            }
            .mobile-menu .mobile-search input {
                border: none;
                background: transparent;
                font-size: 0.95rem;
                width: 100%;
                color: var(--text-main);
            }
            .mobile-menu .mobile-search input::placeholder {
                color: #b0b7c3;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 56px;
                gap: 12px;
            }
            .logo-text {
                font-size: 1rem;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: #0a0a14;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.55;
            filter: saturate(0.6) brightness(0.5);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 20, 0.7) 0%, rgba(10, 10, 20, 0.9) 60%, rgba(10, 10, 20, 0.95) 100%);
        }

        .hero-glow {
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-glow-2 {
            position: absolute;
            bottom: -60px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 80px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #c7d2fe;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            background: #22c55e;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(34, 197, 94, 0);
            }
        }

        .hero-title {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            color: #ffffff;
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #818cf8, #c084fc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: clamp(1.05rem, 1.8vw, 1.2rem);
            color: #b0b8d0;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 540px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 32px rgba(79, 70, 229, 0.55);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #e0e0f0;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.55);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: #8890b0;
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 500px;
            }
            .hero-content {
                padding: 50px 0;
            }
            .hero-stats-row {
                gap: 20px;
                margin-top: 28px;
            }
            .hero-stat-value {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-content {
                padding: 36px 0;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary,
            .btn-outline-light {
                justify-content: center;
                padding: 12px 22px;
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-value {
                font-size: 1.2rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 72px 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: #e0e0f0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 40px;
        }

        .section-dark .section-subtitle {
            color: #8890b0;
        }

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

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .feature-card-icon.blue {
            background: #eef2ff;
            color: var(--primary);
        }
        .feature-card-icon.amber {
            background: #fff7ed;
            color: var(--accent);
        }
        .feature-card-icon.emerald {
            background: #ecfdf5;
            color: #10b981;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media (max-width: 860px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .feature-card {
                padding: 22px 18px;
            }
        }

        /* ========== HUD DATA PANEL ========== */
        .hud-panel {
            background: var(--bg-hud);
            border: 1px solid var(--border-hud);
            border-radius: var(--radius-2xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-hud);
            position: relative;
            overflow: hidden;
        }

        .hud-panel::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hud-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .hud-stat {
            text-align: center;
            padding: 16px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-base);
        }

        .hud-stat:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.15);
        }

        .hud-stat-value {
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: -0.03em;
            color: #e0e0ff;
            line-height: 1;
            margin-bottom: 6px;
        }

        .hud-stat-value.accent {
            color: var(--accent-glow);
        }

        .hud-stat-value.neon-blue {
            color: #60a5fa;
        }

        .hud-stat-value.neon-cyan {
            color: #22d3ee;
        }

        .hud-stat-label {
            font-size: 0.8rem;
            color: #7070a0;
            letter-spacing: 0.04em;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .hud-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .hud-panel {
                padding: 28px 20px;
            }
            .hud-stat-value {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hud-stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hud-stat-value {
                font-size: 1.5rem;
            }
            .hud-stat {
                padding: 12px 8px;
            }
        }

        /* ========== CATEGORY ENTRY CARD ========== */
        .category-entry-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            align-items: center;
        }

        .category-entry-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .category-entry-card .card-image {
            height: 100%;
            min-height: 280px;
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-2xl) 0 0 var(--radius-2xl);
        }

        .category-entry-card .card-body {
            padding: 36px 32px 36px 0;
        }

        .category-entry-card .card-tag {
            display: inline-block;
            background: #eef2ff;
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 50px;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }

        .category-entry-card h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .category-entry-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 18px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-lg);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
        }

        @media (max-width: 768px) {
            .category-entry-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .category-entry-card .card-image {
                min-height: 200px;
                border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
            }
            .category-entry-card .card-body {
                padding: 24px 20px;
            }
        }

        /* ========== CMS LIST ========== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .cms-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }

        .cms-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 70, 229, 0.18);
        }

        .cms-card .card-thumb {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .cms-card .card-thumb .card-category-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(0, 0, 0, 0.65);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 50px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }

        .cms-card .card-info {
            padding: 18px 16px;
        }

        .cms-card .card-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card .card-info h4 a {
            color: var(--text-main);
            transition: color var(--transition-fast);
        }

        .cms-card .card-info h4 a:hover {
            color: var(--primary);
        }

        .cms-card .card-info .card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .cms-card .card-info .card-meta {
            font-size: 0.75rem;
            color: #b0b7c3;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .cms-empty-state {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px dashed var(--border-subtle);
        }

        @media (max-width: 860px) {
            .cms-list-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .cms-list-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cms-card .card-thumb {
                height: 200px;
            }
        }

        /* ========== COMPARISON PANEL ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .comparison-card {
            border-radius: var(--radius-2xl);
            padding: 32px 28px;
            border: 1.5px solid var(--border-subtle);
            background: #fff;
            transition: all var(--transition-base);
        }

        .comparison-card.featured {
            border-color: var(--primary-light);
            background: linear-gradient(180deg, #fafafe 0%, #fff 40%);
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.06);
            position: relative;
        }

        .comparison-card.featured::before {
            content: '平台优势';
            position: absolute;
            top: -13px;
            right: 24px;
            background: var(--primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.04em;
        }

        .comparison-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .comparison-list {
            list-style: none;
        }

        .comparison-list li {
            padding: 10px 0;
            border-bottom: 1px solid #f3f4f6;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .comparison-list li i.fa-check {
            color: #10b981;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .comparison-list li i.fa-xmark {
            color: #ef4444;
            margin-top: 3px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .comparison-card {
                padding: 24px 18px;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--accent-light));
            border-radius: 1px;
            z-index: 0;
            opacity: 0.5;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .process-step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary);
            margin: 0 auto 16px;
            transition: all var(--transition-base);
            box-shadow: 0 0 0 8px rgba(79, 70, 229, 0.05);
        }

        .process-step:hover .process-step-number {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 0 0 16px rgba(79, 70, 229, 0.12);
            transform: scale(1.08);
        }

        .process-step h5 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .process-step p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .process-steps::before {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 4px 0;
        }

        .faq-item summary {
            padding: 18px 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            color: var(--text-main);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 700;
            font-size: 0.9rem;
            color: #b0b7c3;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item .faq-answer {
            padding: 0 8px 18px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        @media (max-width: 520px) {
            .faq-item summary {
                font-size: 0.95rem;
                padding: 14px 4px;
            }
            .faq-item .faq-answer {
                font-size: 0.85rem;
                padding: 0 4px 14px;
            }
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4338ca 100%);
            border-radius: var(--radius-2xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner-content {
            position: relative;
            z-index: 1;
        }

        .cta-banner h3 {
            font-size: clamp(1.5rem, 3vw, 1.9rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .cta-banner p {
            color: #c7d2fe;
            font-size: 1.05rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 34px;
            background: #fff;
            color: var(--primary-dark);
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(0, 0, 0, 0.35);
            background: #f0f0ff;
        }

        @media (max-width: 520px) {
            .cta-banner {
                padding: 32px 20px;
                border-radius: var(--radius-xl);
            }
            .cta-banner h3 {
                font-size: 1.3rem;
            }
            .cta-banner p {
                font-size: 0.9rem;
            }
            .btn-cta-large {
                padding: 13px 26px;
                font-size: 0.95rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111118;
            color: #a0a0b8;
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 1.15rem;
            font-weight: 800;
            color: #e0e0f0;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #707088;
        }

        .footer-links h6 {
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: #c0c0d0;
            margin-bottom: 14px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 8px;
        }

        .footer-links ul li a {
            font-size: 0.88rem;
            color: #808098;
            transition: color var(--transition-fast);
        }

        .footer-links ul li a:hover {
            color: #d0d0e8;
        }

        .footer-bottom {
            border-top: 1px solid #1e1e30;
            padding-top: 20px;
            font-size: 0.8rem;
            color: #606078;
            text-align: center;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

        /* ========== BACK TO TOP ========== */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.4);
            z-index: 900;
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.55);
        }

        @media (max-width: 520px) {
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #06060c;
            --bg-primary: #0a0a14;
            --bg-secondary: #0f0f1c;
            --bg-card: #131320;
            --bg-card-hover: #18182a;
            --bg-surface: #1a1a2e;
            --bg-input: #111122;
            --text-primary: #f0f0f5;
            --text-secondary: #b0b0c8;
            --text-muted: #6b6b85;
            --text-weak: #4a4a60;
            --accent-primary: #00d4ff;
            --accent-primary-glow: rgba(0,212,255,0.35);
            --accent-secondary: #7c5cfc;
            --accent-tertiary: #ff5e3a;
            --accent-gold: #d4a745;
            --accent-gold-dim: rgba(212,167,69,0.25);
            --border-subtle: rgba(255,255,255,0.06);
            --border-card: rgba(255,255,255,0.08);
            --border-glow: rgba(0,212,255,0.25);
            --border-input: rgba(255,255,255,0.12);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
            --shadow-glow: 0 0 20px rgba(0,212,255,0.15), 0 0 60px rgba(0,212,255,0.05);
            --shadow-gold: 0 0 16px rgba(212,167,69,0.12);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-display: 'Inter', 'Noto Sans SC', sans-serif;
            --font-body: 'Noto Sans SC', 'Inter', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --nav-height: 64px;
            --container-max: 1200px;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25,0.8,0.25,1.2);
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{
            font-family:var(--font-body);
            font-size:16px;line-height:1.7;
            color:var(--text-primary);
            background:var(--bg-deep);
            min-height:100vh;
            overflow-x:hidden;
        }
        body::before{
            content:'';
            position:fixed;top:0;left:0;width:100%;height:100%;
            background:radial-gradient(ellipse at 40% 20%,rgba(0,180,220,0.04) 0%,transparent 60%),
                       radial-gradient(ellipse at 70% 60%,rgba(124,92,252,0.03) 0%,transparent 55%),
                       radial-gradient(ellipse at 20% 80%,rgba(212,167,69,0.02) 0%,transparent 50%);
            pointer-events:none;z-index:0;
        }
        a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition-fast)}
        a:hover{color:#5ee4ff}
        img{max-width:100%;height:auto;display:block}
        button,input{font-family:inherit;font-size:inherit}
        ul,ol{list-style:none}
        h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.25;color:var(--text-primary)}
        h1{font-size:2.4rem;letter-spacing:-0.02em}
        h2{font-size:1.9rem;letter-spacing:-0.01em}
        h3{font-size:1.45rem}
        h4{font-size:1.2rem}

        .container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px;position:relative;z-index:1}
        .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

        /* ===== HEADER / NAV ===== */
        .site-header{
            position:sticky;top:0;z-index:1000;
            background:rgba(10,10,20,0.82);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
            border-bottom:1px solid var(--border-subtle);
            height:var(--nav-height);display:flex;align-items:center;
            transition:background var(--transition-base);
        }
        .site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
        .nav-logo{
            font-family:var(--font-display);font-size:1.25rem;font-weight:800;
            color:var(--text-primary);letter-spacing:-0.01em;
            display:flex;align-items:center;gap:10px;white-space:nowrap;
            text-decoration:none;transition:color var(--transition-fast);
        }
        .nav-logo:hover{color:var(--accent-primary)}
        .nav-logo .logo-icon{
            width:36px;height:36px;border-radius:var(--radius-sm);
            background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));
            display:flex;align-items:center;justify-content:center;
            font-size:1.1rem;color:#fff;flex-shrink:0;
            box-shadow:0 0 14px var(--accent-primary-glow);
        }
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{
            display:block;padding:8px 18px;border-radius:var(--radius-full);
            color:var(--text-secondary);font-weight:500;font-size:0.92rem;
            transition:all var(--transition-fast);position:relative;white-space:nowrap;
        }
        .nav-links a:hover{color:var(--text-primary);background:rgba(255,255,255,0.04)}
        .nav-links a.active{
            color:var(--accent-primary);background:rgba(0,212,255,0.08);
            font-weight:600;
        }
        .nav-links a.active::after{
            content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);
            width:20px;height:2px;border-radius:1px;
            background:var(--accent-primary);box-shadow:0 0 8px var(--accent-primary-glow);
        }
        .nav-search{
            position:relative;display:flex;align-items:center;
        }
        .nav-search input{
            width:200px;padding:9px 16px 9px 38px;border-radius:var(--radius-full);
            border:1px solid var(--border-input);background:var(--bg-input);
            color:var(--text-primary);font-size:0.88rem;
            transition:all var(--transition-base);outline:none;
        }
        .nav-search input::placeholder{color:var(--text-muted)}
        .nav-search input:focus{
            border-color:var(--accent-primary);width:240px;
            box-shadow:0 0 0 3px rgba(0,212,255,0.08);
        }
        .nav-search .search-icon{
            position:absolute;left:14px;top:50%;transform:translateY(-50%);
            color:var(--text-muted);font-size:0.85rem;pointer-events:none;
            transition:color var(--transition-fast);
        }
        .nav-search input:focus ~ .search-icon{color:var(--accent-primary)}
        .mobile-menu-btn{
            display:none;background:none;border:none;
            color:var(--text-primary);font-size:1.5rem;cursor:pointer;
            padding:6px;border-radius:var(--radius-sm);transition:background var(--transition-fast);
        }
        .mobile-menu-btn:hover{background:rgba(255,255,255,0.06)}

        /* ===== BREADCRUMB ===== */
        .breadcrumb-bar{
            padding:16px 0;background:var(--bg-primary);border-bottom:1px solid var(--border-subtle);
        }
        .breadcrumb{
            display:flex;align-items:center;gap:8px;flex-wrap:wrap;
            font-size:0.85rem;color:var(--text-muted);
        }
        .breadcrumb a{color:var(--text-secondary);transition:color var(--transition-fast)}
        .breadcrumb a:hover{color:var(--accent-primary)}
        .breadcrumb .sep{color:var(--text-weak);user-select:none}
        .breadcrumb .current{color:var(--text-primary);font-weight:500}

        /* ===== ARTICLE HERO BANNER ===== */
        .article-hero{
            position:relative;padding:60px 0 48px;
            background:var(--bg-secondary);
            overflow:hidden;
        }
        .article-hero::before{
            content:'';position:absolute;inset:0;
            background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity:0.12;z-index:0;
        }
        .article-hero::after{
            content:'';position:absolute;bottom:0;left:0;right:0;height:120px;
            background:linear-gradient(to top,var(--bg-secondary),transparent);z-index:0;
        }
        .article-hero .container{position:relative;z-index:1}
        .article-hero-content{max-width:860px;margin:0 auto;text-align:center}
        .article-category-tag{
            display:inline-flex;align-items:center;gap:6px;
            padding:6px 16px;border-radius:var(--radius-full);
            background:rgba(0,212,255,0.1);color:var(--accent-primary);
            font-size:0.82rem;font-weight:600;letter-spacing:0.03em;
            border:1px solid rgba(0,212,255,0.2);
            margin-bottom:20px;text-transform:uppercase;
        }
        .article-hero-content h1{
            font-size:2.6rem;font-weight:900;letter-spacing:-0.03em;
            line-height:1.2;margin-bottom:16px;
            background:linear-gradient(180deg,#ffffff 0%,#d0d0e8 100%);
            -webkit-background-clip:text;-webkit-text-fill-color:transparent;
            background-clip:text;
        }
        .article-meta{
            display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;
            font-size:0.88rem;color:var(--text-muted);
        }
        .article-meta span{
            display:flex;align-items:center;gap:6px;
        }
        .article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-weak)}
        .article-meta i{color:var(--accent-primary);font-size:0.8rem}

        /* ===== MAIN LAYOUT ===== */
        .article-main{padding:48px 0 60px;background:var(--bg-primary)}
        .article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}

        /* ===== ARTICLE CONTENT ===== */
        .article-content-card{
            background:var(--bg-card);border:1px solid var(--border-card);
            border-radius:var(--radius-lg);padding:40px;
            box-shadow:var(--shadow-md);
        }
        .article-content-card .article-cover{
            margin:-40px -40px 32px -40px;border-radius:var(--radius-lg) var(--radius-lg) 0 0;
            overflow:hidden;aspect-ratio:16/9;
        }
        .article-content-card .article-cover img{
            width:100%;height:100%;object-fit:cover;
        }
        .article-body{
            font-size:1.05rem;line-height:1.85;color:var(--text-secondary);
            word-break:break-word;
        }
        .article-body h2{
            font-size:1.55rem;color:var(--text-primary);margin:32px 0 14px;
            padding-bottom:10px;border-bottom:1px solid var(--border-subtle);
        }
        .article-body h3{font-size:1.25rem;color:var(--text-primary);margin:24px 0 10px}
        .article-body p{margin-bottom:18px}
        .article-body strong{color:var(--text-primary);font-weight:600}
        .article-body a{color:var(--accent-primary);border-bottom:1px dashed var(--accent-primary-glow)}
        .article-body a:hover{border-bottom-style:solid}
        .article-body blockquote{
            margin:24px 0;padding:18px 24px;border-left:4px solid var(--accent-primary);
            background:rgba(0,212,255,0.04);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
            font-style:italic;color:var(--text-secondary);
        }
        .article-body ul,.article-body ol{margin:16px 0;padding-left:24px}
        .article-body ul{list-style:disc}
        .article-body ol{list-style:decimal}
        .article-body li{margin-bottom:8px}
        .article-body code{
            font-family:var(--font-mono);font-size:0.9em;
            background:rgba(255,255,255,0.06);padding:2px 8px;border-radius:var(--radius-xs);
            color:var(--accent-primary);
        }
        .article-body pre{
            margin:20px 0;padding:20px 24px;border-radius:var(--radius-md);
            background:var(--bg-deep);border:1px solid var(--border-card);
            overflow-x:auto;font-family:var(--font-mono);font-size:0.9rem;
            line-height:1.6;color:var(--text-secondary);
        }
        .article-body img{
            border-radius:var(--radius-md);margin:20px 0;
            border:1px solid var(--border-subtle);
        }
        .article-body hr{
            border:none;height:1px;background:var(--border-card);margin:28px 0;
        }

        .article-tags{
            margin-top:32px;padding-top:24px;border-top:1px solid var(--border-subtle);
            display:flex;align-items:center;gap:10px;flex-wrap:wrap;
        }
        .article-tags span{font-weight:600;font-size:0.85rem;color:var(--text-muted)}
        .article-tags a{
            padding:5px 14px;border-radius:var(--radius-full);
            background:rgba(255,255,255,0.04);color:var(--text-secondary);
            font-size:0.82rem;border:1px solid var(--border-subtle);
            transition:all var(--transition-fast);
        }
        .article-tags a:hover{
            background:rgba(0,212,255,0.08);color:var(--accent-primary);
            border-color:rgba(0,212,255,0.25);
        }

        /* ===== NOT FOUND STATE ===== */
        .not-found-card{
            background:var(--bg-card);border:1px solid var(--border-card);
            border-radius:var(--radius-lg);padding:60px 40px;text-align:center;
            box-shadow:var(--shadow-md);
        }
        .not-found-card .nf-icon{
            font-size:4rem;color:var(--text-weak);margin-bottom:20px;
        }
        .not-found-card h2{font-size:1.6rem;margin-bottom:12px}
        .not-found-card p{color:var(--text-muted);margin-bottom:24px;font-size:0.95rem}

        /* ===== SIDEBAR ===== */
        .sidebar{position:sticky;top:calc(var(--nav-height) + 24px);display:flex;flex-direction:column;gap:24px}
        .sidebar-card{
            background:var(--bg-card);border:1px solid var(--border-card);
            border-radius:var(--radius-lg);padding:24px;
            box-shadow:var(--shadow-sm);
        }
        .sidebar-card h4{
            font-size:1rem;font-weight:700;color:var(--text-primary);
            margin-bottom:16px;display:flex;align-items:center;gap:8px;
            padding-bottom:12px;border-bottom:1px solid var(--border-subtle);
        }
        .sidebar-card h4 i{color:var(--accent-primary);font-size:0.9rem}
        .sidebar-stats{
            display:grid;grid-template-columns:1fr 1fr;gap:12px;
        }
        .stat-item{
            background:var(--bg-surface);border-radius:var(--radius-sm);
            padding:14px 12px;text-align:center;
            border:1px solid var(--border-subtle);
            transition:all var(--transition-fast);
        }
        .stat-item:hover{border-color:var(--border-glow);box-shadow:var(--shadow-glow)}
        .stat-item .stat-num{
            font-family:var(--font-display);font-size:1.5rem;font-weight:800;
            color:var(--accent-primary);line-height:1.1;
        }
        .stat-item .stat-label{font-size:0.75rem;color:var(--text-muted);margin-top:4px}
        .sidebar-post-list{display:flex;flex-direction:column;gap:14px}
        .sidebar-post-item{
            display:flex;gap:12px;padding:10px;border-radius:var(--radius-sm);
            transition:all var(--transition-fast);text-decoration:none;
            border:1px solid transparent;
        }
        .sidebar-post-item:hover{
            background:var(--bg-card-hover);border-color:var(--border-subtle);
        }
        .sidebar-post-item .sp-thumb{
            width:64px;height:48px;border-radius:var(--radius-sm);
            flex-shrink:0;overflow:hidden;background:var(--bg-surface);
        }
        .sidebar-post-item .sp-thumb img{
            width:100%;height:100%;object-fit:cover;
        }
        .sidebar-post-item .sp-info{flex:1;min-width:0}
        .sidebar-post-item .sp-title{
            font-size:0.85rem;font-weight:600;color:var(--text-primary);
            line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
            overflow:hidden;margin-bottom:4px;
        }
        .sidebar-post-item:hover .sp-title{color:var(--accent-primary)}
        .sidebar-post-item .sp-date{
            font-size:0.75rem;color:var(--text-muted);
        }

        /* ===== RELATED POSTS ===== */
        .related-section{padding:48px 0 60px;background:var(--bg-secondary)}
        .related-section .section-header{margin-bottom:32px}
        .related-section .section-header h2{
            font-size:1.65rem;display:flex;align-items:center;gap:10px;
        }
        .related-section .section-header h2::before{
            content:'';width:4px;height:28px;border-radius:2px;
            background:var(--accent-primary);box-shadow:0 0 10px var(--accent-primary-glow);
        }
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .related-card{
            background:var(--bg-card);border:1px solid var(--border-card);
            border-radius:var(--radius-lg);overflow:hidden;
            transition:all var(--transition-base);text-decoration:none;display:block;
            box-shadow:var(--shadow-sm);
        }
        .related-card:hover{
            transform:translateY(-4px);box-shadow:var(--shadow-lg);
            border-color:var(--border-glow);
        }
        .related-card .rc-image{
            aspect-ratio:16/10;overflow:hidden;background:var(--bg-surface);
            position:relative;
        }
        .related-card .rc-image img{
            width:100%;height:100%;object-fit:cover;
            transition:transform var(--transition-slow);
        }
        .related-card:hover .rc-image img{transform:scale(1.04)}
        .related-card .rc-body{padding:18px 20px 20px}
        .related-card .rc-tag{
            display:inline-block;padding:3px 10px;border-radius:var(--radius-full);
            background:rgba(0,212,255,0.08);color:var(--accent-primary);
            font-size:0.72rem;font-weight:600;letter-spacing:0.02em;margin-bottom:8px;
        }
        .related-card .rc-title{
            font-size:0.95rem;font-weight:700;color:var(--text-primary);
            line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
            overflow:hidden;
        }
        .related-card:hover .rc-title{color:var(--accent-primary)}

        /* ===== CTA ===== */
        .cta-section{
            padding:60px 0;background:var(--bg-primary);
            border-top:1px solid var(--border-subtle);
        }
        .cta-card{
            background:linear-gradient(135deg,var(--bg-card) 0%,var(--bg-surface) 100%);
            border:1px solid var(--border-card);border-radius:var(--radius-xl);
            padding:48px 40px;text-align:center;position:relative;overflow:hidden;
            box-shadow:var(--shadow-md);
        }
        .cta-card::before{
            content:'';position:absolute;top:-50%;right:-30%;width:400px;height:400px;
            background:radial-gradient(circle,rgba(0,212,255,0.06) 0%,transparent 70%);
            pointer-events:none;
        }
        .cta-card h3{font-size:1.55rem;margin-bottom:10px;position:relative}
        .cta-card p{color:var(--text-muted);margin-bottom:24px;font-size:0.95rem;position:relative}
        .btn{
            display:inline-flex;align-items:center;gap:8px;padding:12px 28px;
            border-radius:var(--radius-full);font-weight:600;font-size:0.95rem;
            cursor:pointer;border:none;transition:all var(--transition-base);
            text-decoration:none;position:relative;
        }
        .btn-primary{
            background:linear-gradient(135deg,var(--accent-primary),#00a8d4);
            color:#000;box-shadow:0 4px 18px rgba(0,212,255,0.3);
        }
        .btn-primary:hover{
            box-shadow:0 6px 24px rgba(0,212,255,0.45);
            transform:translateY(-2px);color:#000;
        }
        .btn-outline{
            background:transparent;color:var(--accent-primary);
            border:1.5px solid rgba(0,212,255,0.35);
        }
        .btn-outline:hover{
            background:rgba(0,212,255,0.06);border-color:var(--accent-primary);
            box-shadow:0 0 16px var(--accent-primary-glow);
        }
        .btn-lg{padding:14px 36px;font-size:1rem}

        /* ===== FOOTER ===== */
        .site-footer{
            background:var(--bg-deep);border-top:1px solid var(--border-subtle);
            padding:48px 0 28px;
        }
        .footer-grid{
            display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;
            margin-bottom:32px;padding-bottom:32px;border-bottom:1px solid var(--border-subtle);
        }
        .footer-logo{
            font-family:var(--font-display);font-size:1.2rem;font-weight:800;
            color:var(--text-primary);margin-bottom:12px;
        }
        .footer-brand p{color:var(--text-muted);font-size:0.88rem;line-height:1.6;max-width:360px}
        .footer-links h6{
            font-size:0.85rem;font-weight:700;color:var(--text-primary);
            margin-bottom:14px;text-transform:uppercase;letter-spacing:0.05em;
        }
        .footer-links ul{display:flex;flex-direction:column;gap:8px}
        .footer-links a{
            color:var(--text-muted);font-size:0.88rem;transition:color var(--transition-fast);
            display:flex;align-items:center;gap:6px;
        }
        .footer-links a:hover{color:var(--accent-primary)}
        .footer-links a i{font-size:0.8rem;width:16px;text-align:center}
        .footer-bottom{
            text-align:center;font-size:0.8rem;color:var(--text-weak);
        }

        /* ===== RESPONSIVE ===== */
        @media(max-width:1024px){
            .article-layout{grid-template-columns:1fr;gap:32px}
            .sidebar{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
            .sidebar-stats{grid-template-columns:repeat(4,1fr)}
            .related-grid{grid-template-columns:repeat(2,1fr)}
            .nav-search input{width:150px}
            .nav-search input:focus{width:180px}
            h1{font-size:2rem}
            .article-hero-content h1{font-size:2.1rem}
        }
        @media(max-width:768px){
            .nav-links{display:none;position:absolute;top:var(--nav-height);left:0;right:0;
                flex-direction:column;background:rgba(15,15,28,0.96);backdrop-filter:blur(16px);
                border-bottom:1px solid var(--border-subtle);padding:12px 24px;gap:4px;
            }
            .nav-links.open{display:flex}
            .nav-links a{padding:10px 16px;border-radius:var(--radius-sm);width:100%}
            .nav-search{display:none}
            .mobile-menu-btn{display:block}
            .article-content-card{padding:24px}
            .article-content-card .article-cover{margin:-24px -24px 24px -24px}
            .article-hero{padding:36px 0 32px}
            .article-hero-content h1{font-size:1.65rem}
            .sidebar{grid-template-columns:1fr}
            .sidebar-stats{grid-template-columns:repeat(2,1fr)}
            .related-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .cta-card{padding:32px 24px}
            h1{font-size:1.7rem}
            .article-body{font-size:1rem}
        }
        @media(max-width:520px){
            .container{padding:0 16px}
            .article-content-card{padding:16px;border-radius:var(--radius-md)}
            .article-content-card .article-cover{margin:-16px -16px 18px -16px;border-radius:var(--radius-md) var(--radius-md) 0 0}
            .article-hero-content h1{font-size:1.35rem}
            .article-meta{gap:10px;font-size:0.78rem}
            .sidebar-stats{grid-template-columns:1fr 1fr}
            .cta-card h3{font-size:1.2rem}
            .article-body{font-size:0.95rem}
            .article-body h2{font-size:1.25rem}
            .article-body h3{font-size:1.1rem}
            .btn-lg{padding:12px 24px;font-size:0.9rem}
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0b0f19;
            --bg-secondary: #111827;
            --bg-card: #161c2a;
            --bg-card-hover: #1a2033;
            --bg-surface: #1c2335;
            --bg-hud: rgba(16, 22, 38, 0.92);
            --text-primary: #e8eaef;
            --text-secondary: #b0b8c9;
            --text-weak: #6b7280;
            --accent-gold: #c8963e;
            --accent-gold-light: #e0b355;
            --accent-blue: #4da6ff;
            --accent-blue-dark: #2d7dd2;
            --accent-cyan: #22d3bb;
            --accent-red: #f04770;
            --border-subtle: #1e293b;
            --border-medium: #2a3347;
            --border-glow: rgba(200, 150, 62, 0.35);
            --border-hud: rgba(77, 166, 255, 0.25);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 24px rgba(200, 150, 62, 0.18);
            --shadow-hud: 0 0 20px rgba(77, 166, 255, 0.12);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --container-max: 1240px;
            --container-narrow: 960px;
            --header-height: 62px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 15, 25, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(11, 15, 25, 0.96);
            border-bottom-color: var(--border-medium);
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .header-logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-gold), #a67c2e);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #0b0f19;
            font-weight: 900;
            flex-shrink: 0;
        }

        .header-nav-area {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(200, 150, 62, 0.1);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-full);
            padding: 8px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            min-width: 180px;
        }

        .header-search:focus-within {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.08);
        }

        .header-search i {
            color: var(--text-weak);
            font-size: 0.85rem;
        }

        .header-search input {
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
            background: transparent;
            border: none;
            outline: none;
        }

        .header-search input::placeholder {
            color: var(--text-weak);
        }

        .btn-header-cta {
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            background: var(--accent-gold);
            color: #0b0f19;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 2px solid var(--accent-gold);
        }

        .btn-header-cta:hover {
            background: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== MAIN ========== */
        .page-main {
            flex: 1;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-subtle);
            padding: 11px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .breadcrumb-list a {
            color: var(--text-secondary);
        }

        .breadcrumb-list a:hover {
            color: var(--accent-gold);
        }

        .breadcrumb-list .separator {
            color: var(--text-weak);
            font-size: 0.7rem;
        }

        .breadcrumb-list .current {
            color: var(--accent-gold);
            font-weight: 500;
        }

        /* ========== CATEGORY HERO ========== */
        .category-hero {
            position: relative;
            padding: 60px 0 56px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            display: flex;
            align-items: center;
            min-height: 280px;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 25, 0.72) 0%, rgba(11, 15, 25, 0.9) 60%, var(--bg-primary) 100%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero-content {
            max-width: 700px;
        }

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(200, 150, 62, 0.15);
            color: var(--accent-gold-light);
            border: 1px solid rgba(200, 150, 62, 0.3);
            margin-bottom: 16px;
        }

        .category-hero-badge i {
            font-size: 0.7rem;
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .category-hero h1 .highlight {
            color: var(--accent-gold);
        }

        .category-hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 560px;
        }

        .category-hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-weak);
        }

        /* ========== SECTION TITLES ========== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-weak);
            max-width: 500px;
            margin: 0 auto;
        }

        .section-header-left {
            text-align: left;
            margin-bottom: 32px;
        }

        .section-header-left h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 6px;
        }

        /* ========== TOPIC FILTER TABS ========== */
        .topic-tabs-section {
            padding: 48px 0 20px;
            background: var(--bg-primary);
        }

        .topic-tabs-wrapper {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .topic-tab {
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .topic-tab:hover {
            color: var(--text-primary);
            border-color: var(--border-medium);
            background: var(--bg-card-hover);
        }

        .topic-tab.active {
            color: #0b0f19;
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            font-weight: 600;
        }

        /* ========== ARTICLE CARDS GRID ========== */
        .article-grid-section {
            padding: 40px 0 56px;
            background: var(--bg-primary);
        }

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

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .article-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }

        .article-card-img-wrap {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-surface);
        }

        .article-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .article-card:hover .article-card-img-wrap img {
            transform: scale(1.05);
        }

        .article-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(11, 15, 25, 0.8);
            color: var(--accent-gold);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(200, 150, 62, 0.25);
        }

        .article-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .article-card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-body h3 a:hover {
            color: var(--accent-gold);
        }

        .article-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.76rem;
            color: var(--text-weak);
            padding-top: 4px;
            border-top: 1px solid var(--border-subtle);
        }

        .article-card-meta i {
            font-size: 0.7rem;
        }

        /* ========== PAGINATION ========== */
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .pagination-btn:hover {
            border-color: var(--border-medium);
            color: var(--text-primary);
        }

        .pagination-btn.active {
            background: var(--accent-gold);
            color: #0b0f19;
            border-color: var(--accent-gold);
            font-weight: 700;
        }

        .pagination-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== HUD DATA PANEL ========== */
        .hud-panel-section {
            padding: 56px 0;
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }

        .hud-panel-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-hud), transparent);
            opacity: 0.7;
        }

        .hud-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .hud-panel {
            background: var(--bg-hud);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(8px);
        }

        .hud-panel::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 120px;
            height: 120px;
            background: radial-gradient(circle at top right, rgba(77, 166, 255, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hud-panel.accent-gold::after {
            background: radial-gradient(circle at top right, rgba(200, 150, 62, 0.08), transparent 70%);
        }

        .hud-panel-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .hud-panel-header .hud-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 8px var(--accent-cyan);
            animation: hud-pulse 2s ease-in-out infinite;
        }

        .hud-panel.accent-gold .hud-dot {
            background: var(--accent-gold);
            box-shadow: 0 0 8px var(--accent-gold);
        }

        @keyframes hud-pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .hud-panel-header h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.02em;
            font-family: var(--font-mono);
            text-transform: uppercase;
        }

        .hud-data-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            position: relative;
            z-index: 1;
        }

        .hud-data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .hud-data-row:hover {
            border-color: var(--border-subtle);
            background: rgba(255, 255, 255, 0.04);
        }

        .hud-data-rank {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-gold);
            width: 28px;
            flex-shrink: 0;
        }

        .hud-data-rank.top1 {
            color: #ffd700;
        }
        .hud-data-rank.top2 {
            color: #c0c0c0;
        }
        .hud-data-rank.top3 {
            color: #cd7f32;
        }

        .hud-data-name {
            flex: 1;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .hud-data-value {
            font-family: var(--font-mono);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-blue);
        }

        .hud-data-change {
            font-size: 0.75rem;
            font-weight: 600;
            margin-left: 8px;
        }

        .hud-data-change.up {
            color: var(--accent-cyan);
        }
        .hud-data-change.down {
            color: var(--accent-red);
        }

        /* ========== TIMELINE / PATH ========== */
        .timeline-section {
            padding: 56px 0;
            background: var(--bg-primary);
        }

        .timeline-path {
            position: relative;
            padding-left: 32px;
            border-left: 2px solid var(--border-medium);
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .timeline-item {
            position: relative;
            padding-left: 24px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -40px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 3px solid var(--accent-gold);
            z-index: 2;
            transition: all var(--transition-fast);
        }

        .timeline-item:hover::before {
            background: var(--accent-gold);
            box-shadow: 0 0 14px rgba(200, 150, 62, 0.5);
        }

        .timeline-date {
            font-family: var(--font-mono);
            font-size: 0.78rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 4px;
            letter-spacing: 0.04em;
        }

        .timeline-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ========== COMPARE PANEL ========== */
        .compare-section {
            padding: 48px 0 56px;
            background: var(--bg-secondary);
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: start;
        }

        .compare-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .compare-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
        }

        .compare-card.featured {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            position: relative;
        }

        .compare-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -13px;
            left: 50%;
            transform: translateX(-50%);
            padding: 4px 14px;
            background: var(--accent-gold);
            color: #0b0f19;
            font-size: 0.72rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            white-space: nowrap;
        }

        .compare-card-img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            margin: 0 auto 16px;
            overflow: hidden;
            background: var(--bg-surface);
            border: 3px solid var(--border-subtle);
        }

        .compare-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .compare-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .compare-card .compare-stats {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 14px 0;
        }

        .compare-stat {
            text-align: center;
        }

        .compare-stat .stat-val {
            font-family: var(--font-mono);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .compare-stat .stat-lbl {
            font-size: 0.72rem;
            color: var(--text-weak);
        }

        .compare-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 900;
            font-size: 1.3rem;
            color: var(--accent-red);
            padding: 0 8px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 56px 0;
            background: var(--bg-primary);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-medium);
        }

        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
            background: none;
            border: none;
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question i {
            font-size: 0.75rem;
            color: var(--text-weak);
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-gold);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(160deg, var(--bg-secondary) 0%, #0f1628 50%, var(--bg-secondary) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

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

        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 13px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            background: var(--accent-gold);
            color: #0b0f19;
            border: 2px solid var(--accent-gold);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-outline {
            padding: 13px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-medium);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #080c16;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .footer-links h6 {
            font-size: 0.82rem;
            font-weight: 700;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 14px;
        }

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

        .footer-links ul li a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }

        .footer-links ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hud-grid {
                grid-template-columns: 1fr;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .compare-vs {
                font-size: 1rem;
                padding: 8px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .header-search {
                min-width: 140px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .header-nav-area {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 15, 25, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 12px;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .header-nav-area.open {
                display: flex;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-md);
            }
            .header-search {
                width: 100%;
                min-width: 0;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .header-actions {
                gap: 6px;
            }
            .btn-header-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .category-hero {
                padding: 40px 0;
                min-height: 220px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero-desc {
                font-size: 0.9rem;
            }
            .category-hero-stats {
                gap: 20px;
            }
            .hero-stat-num {
                font-size: 1.4rem;
            }
            .topic-tab {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hud-panel {
                padding: 20px;
            }
            .timeline-path {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 14px;
            }
            .timeline-item::before {
                left: -28px;
                width: 10px;
                height: 10px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .compare-card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .category-hero-badge {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .pagination-btn {
                width: 32px;
                height: 32px;
                font-size: 0.78rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 11px 22px;
                font-size: 0.85rem;
            }
            .hud-data-row {
                padding: 8px 10px;
                font-size: 0.8rem;
            }
            .hud-data-name {
                font-size: 0.8rem;
            }
        }