/* roulang page: index */
:root {
            --bg-primary: #0c0f0d;
            --bg-secondary: #121712;
            --bg-card: #1a211c;
            --bg-card-hover: #202a22;
            --accent: #c8ff3d;
            --accent-dim: #b8f135;
            --accent-dark: #9ed12b;
            --gold: #f5b84b;
            --gold-dim: #d9a23c;
            --red-brick: #c05a4a;
            --text-primary: #f5f7f2;
            --text-secondary: #b5bfae;
            --text-muted: #7e8a79;
            --border-subtle: rgba(200, 255, 61, 0.14);
            --border-hover: rgba(200, 255, 61, 0.45);
            --border-gold: rgba(245, 184, 75, 0.35);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 28px rgba(200, 255, 61, 0.12);
            --shadow-gold: 0 0 20px rgba(245, 184, 75, 0.1);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --nav-height: 76px;
            --nav-height-mobile: 62px;
            --transition-fast: 0.22s ease;
            --transition-base: 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

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

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

        button {
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }

        ::selection {
            background: var(--accent);
            color: #0c0f0d;
        }

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

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: rgba(12, 15, 13, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(200, 255, 61, 0.1);
            z-index: 1000;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(12, 15, 13, 0.96);
            border-bottom-color: rgba(200, 255, 61, 0.22);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .nav-logo:hover {
            color: var(--accent);
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #0c0f0d;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--accent);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 24px;
            text-decoration: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(200, 255, 61, 0.2);
        }

        .nav-cta:hover {
            background: #d6ff5e;
            color: #0c0f0d;
            box-shadow: 0 8px 28px rgba(200, 255, 61, 0.35);
            transform: translateY(-2px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(200, 255, 61, 0.2);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 6px;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(12, 15, 13, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 18px 16px;
            border-radius: var(--radius-md);
            background: rgba(26, 33, 28, 0.8);
            border: 1px solid var(--border-subtle);
            text-decoration: none;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(200, 255, 61, 0.1);
            border-color: var(--border-hover);
            color: var(--accent);
        }

        .mobile-menu .mobile-cta {
            background: var(--accent);
            color: #0c0f0d;
            border: none;
            justify-content: center;
            font-weight: 700;
            margin-top: 16px;
        }

        .mobile-menu .mobile-cta:hover {
            background: #d6ff5e;
            color: #0c0f0d;
            box-shadow: var(--shadow-glow);
        }

        /* Announcement bar */
        .announcement-bar {
            margin-top: var(--nav-height);
            background: rgba(200, 255, 61, 0.06);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
            font-size: 0.85rem;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        .announcement-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .announcement-bar .signal-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
            margin-right: 8px;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(200, 255, 61, 0.5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(200, 255, 61, 0);
            }
        }

        .announcement-bar .update-time {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Hero section */
        .hero-section {
            position: relative;
            padding: 60px 0 80px;
            background-image: url('/assets/images/274d4609292ad48b.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 13, 0.75) 0%, rgba(12, 15, 13, 0.88) 55%, rgba(12, 15, 13, 0.95) 100%);
            pointer-events: none;
        }

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

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-content h1 .accent-text {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 560px;
            text-align: justify;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(26, 33, 28, 0.85);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 8px 16px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .hero-badge:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: rgba(200, 255, 61, 0.06);
        }

        .hero-badge .badge-icon {
            font-size: 1rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: 28px;
            text-decoration: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 24px rgba(200, 255, 61, 0.25);
            letter-spacing: 0.03em;
        }

        .btn-primary:hover {
            background: #d6ff5e;
            color: #0c0f0d;
            box-shadow: 0 12px 36px rgba(200, 255, 61, 0.4);
            transform: translateY(-3px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(200, 255, 61, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 1rem;
            padding: 13px 28px;
            border-radius: 28px;
            text-decoration: none;
            border: 1px solid rgba(200, 255, 61, 0.4);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: rgba(200, 255, 61, 0.12);
            border-color: var(--border-hover);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
            background: rgba(200, 255, 61, 0.2);
        }

        .hero-apply-panel {
            background: rgba(26, 33, 28, 0.9);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
        }

        .hero-apply-panel h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .hero-apply-panel .apply-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .apply-benefit-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 20px;
        }

        .apply-benefit-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .apply-benefit-list li .check-icon {
            width: 22px;
            height: 22px;
            background: rgba(200, 255, 61, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        .apply-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .apply-form input {
            background: rgba(12, 15, 13, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .apply-form input::placeholder {
            color: var(--text-muted);
        }

        .apply-form input:focus {
            border-color: var(--border-hover);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.1);
            outline: none;
        }

        .apply-form .btn-primary {
            justify-content: center;
            width: 100%;
        }

        /* Section shared */
        .section {
            padding: 64px 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            text-align: left;
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--accent);
            letter-spacing: 0.1em;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .section-header h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .section-header p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 720px;
            text-align: justify;
        }

        .text-gold {
            color: var(--gold);
        }

        .accent-dot {
            color: var(--accent);
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .feature-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-6px);
            background: var(--bg-card-hover);
        }

        .feature-card .card-image {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .feature-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .feature-card:hover .card-image img {
            transform: scale(1.05);
        }

        .feature-card .card-image .image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(12, 15, 13, 0.8) 100%);
        }

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

        .feature-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--accent-dim);
        }

        /* Scene demo */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

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

        .scene-card .scene-icon {
            font-size: 2rem;
            margin-bottom: 14px;
            display: block;
        }

        .scene-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .scene-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .scene-timeline {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
        }

        .scene-timeline .timeline-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .scene-timeline .timeline-dot.gold {
            background: var(--gold);
        }

        .scene-timeline .timeline-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Matrix */
        .matrix-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .matrix-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 24px;
            padding: 10px 18px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .matrix-tag:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: rgba(200, 255, 61, 0.06);
            transform: translateY(-2px);
        }

        .matrix-tag .tag-count {
            font-family: var(--font-mono);
            font-size: 0.78rem;
            color: var(--text-muted);
            background: rgba(12, 15, 13, 0.6);
            padding: 2px 8px;
            border-radius: 12px;
        }

        /* Social proof */
        .proof-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 32px;
        }

        .proof-stat {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .proof-stat:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .proof-stat .stat-number {
            font-family: var(--font-mono);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .proof-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .testimonial-card .quote-mark {
            font-size: 2rem;
            color: var(--accent);
            line-height: 1;
            opacity: 0.6;
            margin-bottom: 10px;
        }

        .testimonial-card .quote-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            font-style: italic;
        }

        .testimonial-card .quote-author {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        /* Comparison table */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .comparison-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .comparison-card.highlight {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
            position: relative;
        }

        .comparison-card.highlight::before {
            content: '天天盈球';
            position: absolute;
            top: -14px;
            left: 24px;
            background: var(--accent);
            color: #0c0f0d;
            padding: 4px 16px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .comparison-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .comparison-card.highlight h3 {
            color: var(--accent);
        }

        .comparison-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .comparison-list li .compare-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.72rem;
            font-weight: 700;
            margin-top: 2px;
        }

        .compare-icon.check {
            background: rgba(200, 255, 61, 0.15);
            color: var(--accent);
        }

        .compare-icon.cross {
            background: rgba(192, 90, 74, 0.15);
            color: var(--red-brick);
        }

        /* News cards */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

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

        .news-card .news-image {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .news-card .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .news-card:hover .news-image img {
            transform: scale(1.04);
        }

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

        .news-card .news-body h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .news-card .news-body p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .news-card .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(200, 255, 61, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent);
            transition: transform var(--transition-fast);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background: rgba(200, 255, 61, 0.2);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* Trust bar */
        .trust-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            padding: 30px 20px;
            background: rgba(26, 33, 28, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 20px;
            background: rgba(12, 15, 13, 0.5);
            transition: all var(--transition-fast);
        }

        .trust-item:hover {
            color: var(--accent);
            background: rgba(200, 255, 61, 0.06);
        }

        .trust-item .trust-icon {
            font-size: 1.1rem;
        }

        /* Brand intro */
        .brand-intro {
            max-width: 900px;
            margin: 0 auto;
            padding: 40px 32px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        .brand-intro h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .brand-intro p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 2.0;
            margin-bottom: 18px;
            text-align: justify;
        }

        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        .brand-intro .highlight-word {
            color: var(--accent);
            font-weight: 600;
        }

        /* Subscribe */
        .subscribe-wrap {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
            padding: 40px 32px;
            background: rgba(26, 33, 28, 0.8);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
        }

        .subscribe-wrap h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .subscribe-wrap p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            background: rgba(12, 15, 13, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: 24px;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }

        .subscribe-form input:focus {
            border-color: var(--border-hover);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.1);
            outline: none;
        }

        .subscribe-form .btn-primary {
            border-radius: 24px;
            padding: 12px 28px;
        }

        /* Topic entry */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .topic-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .topic-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .topic-card .topic-cta {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Pain point list */
        .pain-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .pain-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all var(--transition-fast);
        }

        .pain-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .pain-item .pain-number {
            font-family: var(--font-mono);
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent);
            flex-shrink: 0;
        }

        .pain-item .pain-content {
            flex: 1;
        }

        .pain-item .pain-content strong {
            font-size: 0.92rem;
            color: var(--text-primary);
            display: block;
            margin-bottom: 4px;
        }

        .pain-item .pain-content span {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Fixed bottom CTA */
        .fixed-bottom-cta {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(12, 15, 13, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-subtle);
            padding: 10px 16px;
            height: 62px;
            z-index: 900;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .fixed-bottom-cta .cta-text {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .fixed-bottom-cta .cta-text strong {
            color: var(--accent);
            font-weight: 700;
        }

        .fixed-bottom-cta .btn-primary {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 20px;
            white-space: nowrap;
            flex-shrink: 0;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom .footer-links a {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom .beian-info {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .site-header {
                height: var(--nav-height-mobile);
            }

            .announcement-bar {
                margin-top: var(--nav-height-mobile);
            }

            .fixed-bottom-cta {
                display: flex;
            }

            .section {
                padding: 48px 0;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .scene-grid {
                grid-template-columns: 1fr;
            }

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

            .news-grid {
                grid-template-columns: 1fr;
            }

            .comparison-wrap {
                grid-template-columns: 1fr;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .hero-content h1 {
                font-size: clamp(1.8rem, 6vw, 2.6rem);
            }

            .hero-section {
                padding: 40px 0 56px;
            }

            .trust-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .subscribe-form .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .proof-grid {
                grid-template-columns: 1fr;
            }

            .hero-badges {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                justify-content: center;
                width: 100%;
            }

            .fixed-bottom-cta {
                height: 58px;
                padding: 6px 12px;
            }

            .fixed-bottom-cta .btn-primary {
                padding: 6px 14px;
                font-size: 0.78rem;
            }

            .brand-intro {
                padding: 24px 18px;
            }

            .subscribe-wrap {
                padding: 28px 18px;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0c0f0d;
            --bg-secondary: #121712;
            --bg-card: #1a211c;
            --bg-card-hover: #202a22;
            --accent: #c8ff3d;
            --accent-dim: #b8f135;
            --accent-dark: #9ed12b;
            --gold: #f5b84b;
            --gold-dim: #d9a23c;
            --red-brick: #c05a4a;
            --text-primary: #f5f7f2;
            --text-secondary: #b5bfae;
            --text-muted: #7e8a79;
            --border-subtle: rgba(200, 255, 61, 0.14);
            --border-hover: rgba(200, 255, 61, 0.45);
            --border-gold: rgba(245, 184, 75, 0.35);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 28px rgba(200, 255, 61, 0.12);
            --shadow-gold: 0 0 20px rgba(245, 184, 75, 0.1);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --nav-height: 76px;
            --nav-height-mobile: 62px;
            --transition-fast: 0.22s ease;
            --transition-base: 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1280px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--accent-dim);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul, ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1, h2, h3, h4, h5, h6, p {
            margin: 0;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            box-sizing: border-box;
        }
        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: rgba(12, 15, 13, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(200, 255, 61, 0.1);
            z-index: 1000;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(12, 15, 13, 0.96);
            border-bottom-color: rgba(200, 255, 61, 0.22);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--accent);
        }
        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #0c0f0d;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-base);
        }
        .nav-links a:hover {
            color: var(--accent);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 24px;
            text-decoration: none;
            white-space: nowrap;
            flex-shrink: 0;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .nav-cta:hover {
            background: var(--accent-dim);
            color: #0c0f0d;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 255, 61, 0.25);
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-subtle);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            transition: border-color var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }
        /* Breadcrumb */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 24px);
            padding-bottom: 12px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }
        /* Category Header */
        .category-head {
            padding: 28px 0 20px;
        }
        .category-head h1 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .category-head h1 .slash {
            color: var(--accent);
        }
        .category-head p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.8;
        }
        /* Filter bar */
        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 24px;
        }
        .filter-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-btn {
            padding: 7px 16px;
            border-radius: 18px;
            border: 1px solid var(--border-subtle);
            background: transparent;
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent);
        }
        .filter-btn.active {
            background: var(--accent);
            color: #0c0f0d;
            border-color: var(--accent);
            font-weight: 600;
        }
        .filter-select {
            padding: 7px 14px;
            border-radius: 10px;
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }
        .filter-select:hover,
        .filter-select:focus {
            border-color: var(--border-hover);
        }
        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            padding-bottom: 16px;
        }
        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .data-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow), 0 16px 32px rgba(0, 0, 0, 0.45);
        }
        .data-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .data-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .data-card:hover .card-image img {
            transform: scale(1.04);
        }
        .data-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(12, 15, 13, 0.82);
            border: 1px solid var(--border-subtle);
            color: var(--accent);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            letter-spacing: 0.04em;
        }
        .data-card .card-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .data-card .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.55;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .data-card:hover .card-title {
            color: var(--accent);
        }
        .data-card .card-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 12px;
        }
        .data-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
            padding-top: 12px;
            border-top: 1px solid var(--border-subtle);
        }
        .data-card .card-meta .signal {
            color: var(--gold);
            font-weight: 600;
        }
        /* Category Description */
        .category-desc {
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
        }
        .category-desc h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .category-desc p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .category-desc p:last-child {
            margin-bottom: 0;
        }
        /* Featured */
        .featured-section {
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
        }
        .featured-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .featured-section .section-sub {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 22px;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .featured-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px;
            transition: border-color var(--transition-fast), transform var(--transition-base);
            text-decoration: none;
            display: block;
        }
        .featured-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }
        .featured-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .featured-card:hover h3 {
            color: var(--accent);
        }
        .featured-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .featured-card .featured-tag {
            display: inline-block;
            font-size: 0.72rem;
            color: var(--gold);
            font-weight: 600;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        /* Data signal bar */
        .signal-bar {
            padding: 28px 0;
        }
        .signal-inner {
            background: linear-gradient(135deg, rgba(200, 255, 61, 0.06), rgba(245, 184, 75, 0.04));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-between;
        }
        .signal-left h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .signal-left p {
            font-size: 0.88rem;
            color: var(--text-secondary);
        }
        .signal-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .signal-stat {
            text-align: center;
        }
        .signal-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--gold);
            font-family: var(--font-mono);
            line-height: 1.2;
        }
        .signal-stat .stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        /* Subscribe */
        .subscribe-section {
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
        }
        .subscribe-box {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .subscribe-box h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .subscribe-box p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            max-width: 480px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .subscribe-form input[type="email"] {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: 22px;
            padding: 10px 18px;
            color: var(--text-primary);
            font-size: 0.9rem;
            min-width: 260px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.12);
        }
        .subscribe-form button {
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 24px;
            border-radius: 22px;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form button:hover {
            background: var(--accent-dim);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(200, 255, 61, 0.22);
        }
        /* FAQ */
        .faq-section {
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
        }
        .faq-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 22px;
        }
        .faq-list {
            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: border-color var(--transition-fast);
        }
        .faq-item.open {
            border-color: var(--border-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            text-align: left;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.2rem;
            transition: transform var(--transition-base);
            font-weight: 400;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        /* Bottom action */
        .bottom-action {
            padding: 36px 0 48px;
            border-top: 1px solid var(--border-subtle);
        }
        .bottom-action-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .bottom-action h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 22px;
            border: 1px solid var(--border-hover);
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 600;
            transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
        }
        .btn-outline:hover {
            background: rgba(200, 255, 61, 0.1);
            color: var(--accent-dim);
            transform: translateY(-2px);
        }
        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #0c0f0d;
            padding: 10px 22px;
            border-radius: 22px;
            font-size: 0.9rem;
            font-weight: 700;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            text-decoration: none;
        }
        .btn-primary-sm:hover {
            background: var(--accent-dim);
            color: #0c0f0d;
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(200, 255, 61, 0.22);
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding-top: 48px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .footer-brand .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .beian-info {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-links a {
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        /* Fixed bottom bar mobile */
        .fixed-bottom-cta {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(12, 15, 13, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-subtle);
            padding: 10px 20px;
            z-index: 998;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .fixed-bottom-cta span {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .fixed-bottom-cta span strong {
            color: var(--accent);
        }
        .fixed-bottom-cta .btn-primary-sm {
            font-size: 0.82rem;
            padding: 8px 18px;
            flex-shrink: 0;
        }
        /* Mobile nav overlay */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(12, 15, 13, 0.96);
            z-index: 999;
            flex-direction: column;
            padding: calc(var(--nav-height-mobile) + 16px) 24px 24px;
            gap: 12px;
        }
        .nav-overlay.open {
            display: flex;
        }
        .nav-overlay a {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-subtle);
            text-decoration: none;
            display: block;
            transition: color var(--transition-fast);
        }
        .nav-overlay a:hover,
        .nav-overlay a.active {
            color: var(--accent);
        }
        .nav-overlay .nav-cta {
            margin-top: 12px;
            justify-content: center;
            font-size: 1rem;
            padding: 14px 20px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-head h1 {
                font-size: 1.65rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .subscribe-box {
                padding: 22px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
                justify-content: flex-start;
            }
            .subscribe-form input[type="email"] {
                min-width: 0;
                flex: 1;
            }
            .signal-inner {
                padding: 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height-mobile) + 16px);
            }
            .fixed-bottom-cta {
                display: flex;
                height: 60px;
            }
            body {
                padding-bottom: 60px;
            }
        }
        @media (max-width: 520px) {
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-head h1 {
                font-size: 1.4rem;
            }
            .signal-stats {
                gap: 16px;
            }
            .signal-stat .stat-num {
                font-size: 1.3rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0c0f0d;
            --bg-secondary: #121712;
            --bg-card: #1a211c;
            --bg-card-hover: #202a22;
            --accent: #c8ff3d;
            --accent-dim: #b8f135;
            --accent-dark: #9ed12b;
            --gold: #f5b84b;
            --gold-dim: #d9a23c;
            --red-brick: #c05a4a;
            --text-primary: #f5f7f2;
            --text-secondary: #b5bfae;
            --text-muted: #7e8a79;
            --border-subtle: rgba(200, 255, 61, 0.14);
            --border-hover: rgba(200, 255, 61, 0.45);
            --border-gold: rgba(245, 184, 75, 0.35);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 28px rgba(200, 255, 61, 0.12);
            --shadow-gold: 0 0 20px rgba(245, 184, 75, 0.1);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --nav-height: 76px;
            --nav-height-mobile: 62px;
            --transition-fast: 0.22s ease;
            --transition-base: 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--nav-height);
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

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

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

        button {
            cursor: pointer;
        }

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: rgba(12, 15, 13, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(200, 255, 61, 0.1);
            z-index: 1000;
            transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(12, 15, 13, 0.96);
            border-bottom-color: rgba(200, 255, 61, 0.22);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .nav-logo:hover {
            color: var(--accent);
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #0c0f0d;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--accent);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 24px;
            text-decoration: none;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .nav-cta:hover {
            background: var(--accent-dim);
            color: #0c0f0d;
            box-shadow: 0 0 18px rgba(200, 255, 61, 0.35);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 44px;
            height: 44px;
            padding: 8px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--accent);
            transition: transform var(--transition-base), opacity var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(12, 15, 13, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transform: translateY(-100%);
            transition: transform var(--transition-base);
            z-index: 999;
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-nav-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .mobile-nav-links a {
            display: block;
            padding: 18px 16px;
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(200, 255, 61, 0.08);
            text-decoration: none;
        }

        .mobile-nav-links a.active {
            color: var(--accent);
            border-left: 3px solid var(--accent);
        }

        .mobile-cart-cta {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: 20px;
            padding: 16px 20px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 800;
            font-size: 1rem;
            border-radius: 24px;
            text-decoration: none;
        }

        .page-head {
            padding: 42px 0 20px;
            border-bottom: 1px solid rgba(200, 255, 61, 0.08);
            background: linear-gradient(180deg, rgba(18, 23, 18, 0.92) 0%, rgba(12, 15, 13, 0.2) 100%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb span {
            color: var(--text-muted);
        }

        .category-head-grid {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 24px;
        }

        .category-head-grid h1 {
            font-size: 2.5rem;
            line-height: 1.25;
            font-weight: 900;
            letter-spacing: 0.02em;
            color: var(--text-primary);
        }

        .category-head-grid h1 .accent-dot {
            color: var(--accent);
        }

        .category-subtitle {
            margin-top: 8px;
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
        }

        .head-meta {
            flex-shrink: 0;
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--gold);
            background: rgba(245, 184, 75, 0.08);
            border: 1px solid var(--border-gold);
            padding: 8px 14px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .filter-bar .filter-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .filter-chip {
            padding: 7px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-secondary);
            font-size: 0.9rem;
            border: 1px solid transparent;
            transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
        }

        .filter-chip:hover,
        .filter-chip.active {
            background: rgba(200, 255, 61, 0.12);
            color: var(--accent);
            border-color: rgba(200, 255, 61, 0.3);
        }

        .sort-select {
            margin-left: auto;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(200, 255, 61, 0.16);
            border-radius: 10px;
            padding: 8px 14px;
            color: var(--text-primary);
            font-size: 0.9rem;
            cursor: pointer;
        }

        .sort-select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.15);
        }

        .signal-strip {
            background: var(--bg-secondary);
            border-bottom: 1px solid rgba(200, 255, 61, 0.09);
            padding: 18px 0;
            overflow: hidden;
            position: relative;
        }

        .signal-strip::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(200, 255, 61, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(200, 255, 61, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }

        .signal-strip .container {
            position: relative;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .signal-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 800;
            font-size: 0.85rem;
            padding: 5px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .signal-ticker {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-family: var(--font-mono);
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .signal-ticker .signal-item {
            display: flex;
            gap: 6px;
            white-space: nowrap;
        }

        .signal-ticker .signal-item strong {
            color: var(--gold);
            font-weight: 700;
        }

        .signal-update {
            margin-left: auto;
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .article-list-section {
            padding: 48px 0 56px;
        }

        .article-list-section .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 24px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .article-list-section .section-head h2 {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-primary);
        }

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

        .article-card {
            background: var(--bg-card);
            border: 1px solid rgba(200, 255, 61, 0.08);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

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

        .article-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0c0f0d;
        }

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

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

        .article-card .card-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .article-card .tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(200, 255, 61, 0.1);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .tag.gold {
            background: rgba(245, 184, 75, 0.12);
            color: var(--gold);
        }

        .tag.red {
            background: rgba(192, 90, 74, 0.12);
            color: #e48a7a;
        }

        .article-card h3 {
            font-size: 1.2rem;
            line-height: 1.5;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .article-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            font-size: 0.8rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        .card-link {
            font-weight: 600;
            color: var(--accent);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
        }

        .card-link:hover {
            color: var(--accent-dim);
        }

        .view-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 32px;
            padding: 12px 22px;
            border: 1px solid rgba(200, 255, 61, 0.25);
            border-radius: 24px;
            color: var(--accent);
            font-weight: 700;
            text-decoration: none;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .view-more:hover {
            background: rgba(200, 255, 61, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }

        .category-intro {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(200, 255, 61, 0.08);
            border-bottom: 1px solid rgba(200, 255, 61, 0.08);
            padding: 48px 0;
        }

        .category-intro .container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .category-intro h2 {
            font-size: 1.75rem;
            font-weight: 900;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .category-intro p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.95;
            text-align: left;
        }

        .featured-channels {
            padding: 48px 0;
        }

        .featured-channels .section-head {
            margin-bottom: 24px;
        }

        .featured-channels .section-head h2 {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-primary);
        }

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

        .channel-card {
            background: var(--bg-card);
            border: 1px solid rgba(200, 255, 61, 0.08);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .channel-card .channel-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(200, 255, 61, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent);
        }

        .channel-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .channel-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .channel-card a {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            text-decoration: none;
        }

        .channel-card a:hover {
            color: var(--accent-dim);
        }

        .observation-banner {
            padding: 24px 0;
            background: rgba(200, 255, 61, 0.04);
            border-top: 1px solid rgba(200, 255, 61, 0.1);
            border-bottom: 1px solid rgba(200, 255, 61, 0.1);
        }

        .observation-banner .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .observation-text {
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .observation-text strong {
            color: var(--accent);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: 24px;
            text-decoration: none;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .btn-primary:hover {
            background: var(--accent-dim);
            color: #0c0f0d;
            box-shadow: 0 0 22px rgba(200, 255, 61, 0.35);
            transform: translateY(-2px);
        }

        .faq-section {
            padding: 48px 0;
            background: var(--bg-secondary);
        }

        .faq-section .section-head {
            margin-bottom: 24px;
        }

        .faq-section .section-head h2 {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-primary);
        }

        .accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(200, 255, 61, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .faq-item[open] {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 20px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
        }

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

        .faq-icon {
            flex-shrink: 0;
            color: var(--accent);
            font-size: 1.4rem;
            transition: transform var(--transition-base);
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 20px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .subscribe-section {
            padding: 56px 0;
            background: linear-gradient(180deg, rgba(200, 255, 61, 0.06) 0%, rgba(12, 15, 13, 0.4) 100%);
        }

        .subscribe-card {
            max-width: 720px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid rgba(200, 255, 61, 0.16);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .subscribe-card h2 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .subscribe-card p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 240px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(200, 255, 61, 0.18);
            border-radius: 12px;
            padding: 14px 16px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.18);
        }

        .subscribe-form button {
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            padding: 14px 26px;
            border-radius: 12px;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .subscribe-form button:hover {
            background: var(--accent-dim);
            box-shadow: 0 0 18px rgba(200, 255, 61, 0.35);
            transform: translateY(-2px);
        }

        .form-hint {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 12px;
        }

        .bottom-nav {
            padding: 36px 0;
            border-top: 1px solid rgba(200, 255, 61, 0.1);
        }

        .bottom-nav .container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .bottom-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 22px;
            border-radius: 24px;
            border: 1px solid rgba(200, 255, 61, 0.2);
            color: var(--accent);
            font-weight: 700;
            text-decoration: none;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .bottom-nav a:hover {
            background: rgba(200, 255, 61, 0.12);
            border-color: var(--accent);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(200, 255, 61, 0.1);
            padding: 56px 0 32px;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(200, 255, 61, 0.08);
        }

        .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 260px;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            text-decoration: none;
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .beian-info {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

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

        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
            }

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

        @media (max-width: 768px) {
            body {
                padding-top: var(--nav-height-mobile);
            }

            .site-header {
                height: var(--nav-height-mobile);
            }

            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-menu {
                top: var(--nav-height-mobile);
            }

            .category-head-grid {
                flex-direction: column;
                align-items: flex-start;
            }

            .category-head-grid h1 {
                font-size: 1.8rem;
            }

            .head-meta {
                align-self: flex-start;
            }

            .article-grid {
                grid-template-columns: 1fr;
            }

            .channel-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .signal-strip .container {
                flex-direction: column;
                align-items: flex-start;
            }

            .signal-update {
                margin-left: 0;
            }

            .observation-banner .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .article-card h3 {
                font-size: 1.1rem;
            }

            .subscribe-card {
                padding: 24px 18px;
            }

            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
        }

/* roulang page: category3 */
:root {
  --bg-primary: #0c0f0d;
  --bg-secondary: #121712;
  --bg-card: #1a211c;
  --bg-card-hover: #202a22;
  --accent: #c8ff3d;
  --accent-dim: #b8f135;
  --accent-dark: #9ed12b;
  --gold: #f5b84b;
  --gold-dim: #d9a23c;
  --red-brick: #c05a4a;
  --text-primary: #f5f7f2;
  --text-secondary: #b5bfae;
  --text-muted: #7e8a79;
  --border-subtle: rgba(200, 255, 61, 0.14);
  --border-hover: rgba(200, 255, 61, 0.45);
  --border-gold: rgba(245, 184, 75, 0.35);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 28px rgba(200, 255, 61, 0.12);
  --shadow-gold: 0 0 20px rgba(245, 184, 75, 0.1);
  --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --nav-height: 76px;
  --nav-height-mobile: 62px;
  --transition-fast: 0.22s ease;
  --transition-base: 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --max-width: 1280px;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
* {
  box-sizing: border-box;
}
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.85;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}
a:hover {
  color: var(--accent-dim);
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  outline: none;
  border: none;
  background: none;
}
button {
  cursor: pointer;
}
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
/* Header / Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(12, 15, 13, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(200, 255, 61, 0.1);
  z-index: 1000;
  transition: background var(--transition-base), border-color var(--transition-base);
}
.site-header.scrolled {
  background: rgba(12, 15, 13, 0.96);
  border-bottom-color: rgba(200, 255, 61, 0.22);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}
.nav-logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.nav-logo:hover {
  color: var(--accent);
}
.nav-logo .logo-mark {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: #0c0f0d;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}
.nav-links a:hover {
  color: var(--accent);
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-links a.active {
  color: var(--accent);
  font-weight: 600;
}
.nav-links a.active::after {
  width: 100%;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0c0f0d;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: 24px;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--accent-dim);
  color: #0c0f0d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 255, 61, 0.28);
}
/* Mobile nav toggle */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: var(--bg-card);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--border-subtle);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
/* Page header */
.page-header {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 10% 10%, rgba(200, 255, 61, 0.06), transparent 40%), var(--bg-primary);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .separator {
  color: var(--text-muted);
  user-select: none;
}
.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  margin: 0 0 12px 0;
  color: var(--text-primary);
}
.page-header .page-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 0 24px 0;
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}
.filter-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 4px;
}
.filter-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.filter-tag:hover, .filter-tag.active {
  background: rgba(200, 255, 61, 0.12);
  border-color: var(--border-hover);
  color: var(--accent);
}
.sort-select {
  margin-left: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 8px 14px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}
.sort-select:focus {
  border-color: var(--accent);
}
/* Main content */
main {
  display: block;
}
.section {
  padding: 56px 0;
}
.section-alt {
  background: var(--bg-secondary);
}
.section-heading {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}
.section-lead {
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 0 32px 0;
  font-size: 1rem;
}
/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}
.card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--bg-card-hover);
}
.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.card:hover .card-image img {
  transform: scale(1.04);
}
.card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  line-height: 1.5;
}
.card-excerpt {
  color: var(--text-secondary);
  font-size: 0.92rem;
  flex: 1;
  margin: 0 0 16px 0;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(200, 255, 61, 0.08);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}
.tag.gold {
  background: rgba(245, 184, 75, 0.08);
  border-color: var(--border-gold);
  color: var(--gold);
}
.card-link {
  align-self: flex-start;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
}
.card-link:hover {
  color: var(--accent-dim);
}
/* Guide list layout */
.guide-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.guide-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.guide-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}
.guide-item-image {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}
.guide-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.guide-item:hover .guide-item-image img {
  transform: scale(1.03);
}
.guide-item-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.guide-item-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.5;
}
.guide-item-excerpt {
  color: var(--text-secondary);
  font-size: 0.92rem;
  flex: 1;
  margin: 0;
}
.guide-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}
.guide-item-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
/* Recommended section */
.recommended-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.recommend-card {
  background: linear-gradient(145deg, var(--bg-card), var(--bg-card-hover));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.recommend-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}
.recommend-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}
.recommend-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  flex: 1;
  margin: 0;
}
.recommend-card a {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.recommend-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(200, 255, 61, 0.1);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
}
/* Data strip */
.data-strip {
  background: linear-gradient(135deg, rgba(200, 255, 61, 0.08), rgba(245, 184, 75, 0.06));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.data-strip .signal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
.data-strip .strip-text {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}
.data-strip .strip-mono {
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 0.9rem;
}
/* Subscribe CTA */
.subscribe-box {
  background: linear-gradient(145deg, var(--bg-card), #1f2a20);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  box-shadow: var(--shadow-glow);
}
.subscribe-box h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0 0 8px 0;
  color: var(--text-primary);
}
.subscribe-box p {
  color: var(--text-secondary);
  margin: 0 0 20px 0;
  font-size: 1rem;
}
.subscribe-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.subscribe-form input {
  flex: 1;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.subscribe-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.15);
}
.subscribe-form input::placeholder {
  color: var(--text-muted);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0c0f0d;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 12px 24px;
  border-radius: 12px;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
}
.btn:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 255, 61, 0.28);
  color: #0c0f0d;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border-hover);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(200, 255, 61, 0.12);
  box-shadow: none;
}
.subscribe-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}
/* FAQ */
.faq-list {
  max-width: 800px;
  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: border-color var(--transition-fast);
}
.faq-item.active {
  border-color: var(--border-hover);
}
.faq-question {
  width: 100%;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: color var(--transition-fast);
  border: none;
  background: none;
}
.faq-question:hover {
  color: var(--accent);
}
.faq-question .arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform var(--transition-base), border-color var(--transition-fast);
}
.faq-item.active .faq-question .arrow {
  transform: rotate(-135deg);
  border-color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 20px 20px 20px;
}
.faq-answer p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}
/* Bottom nav */
.bottom-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 28px 0;
}
.bottom-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--accent);
}
.bottom-nav a:hover {
  color: var(--accent-dim);
}
/* Footer */
.site-footer {
  background: #0a0d0b;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand .footer-logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
  margin: 0;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 16px 0;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.beian-info {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-links {
  display: flex;
  gap: 8px;
  align-items: center;
}
/* Mobile bottom CTA */
.mobile-bottom-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 62px;
  background: rgba(12, 15, 13, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  z-index: 999;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  justify-content: space-between;
}
.mobile-bottom-cta span {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.95rem;
  flex: 1;
}
.mobile-bottom-cta a {
  background: var(--accent);
  color: #0c0f0d;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 18px;
  border-radius: 20px;
  white-space: nowrap;
  text-decoration: none;
}
.mobile-bottom-cta a:hover {
  background: var(--accent-dim);
}
/* Responsive */
@media (max-width: 1024px) {
  .card-grid, .recommended-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .subscribe-box {
    grid-template-columns: 1fr;
    padding: 32px;
  }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height-mobile);
    left: 0;
    right: 0;
    background: rgba(12, 15, 13, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 32px;
    gap: 8px;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.6);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    padding: 14px 8px;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-subtle);
    width: 100%;
  }
  .nav-links a::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .nav-wrapper {
    gap: 12px;
  }
  .site-header {
    height: var(--nav-height-mobile);
  }
  .page-header {
    padding-top: calc(var(--nav-height-mobile) + 24px);
  }
  .page-header h1 {
    font-size: 1.8rem;
  }
  .guide-item {
    grid-template-columns: 1fr;
  }
  .guide-item-image {
    min-height: 200px;
  }
  .card-grid, .recommended-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .section {
    padding: 40px 0;
  }
  .section-heading {
    font-size: 1.5rem;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form input {
    min-width: auto;
  }
  .mobile-bottom-cta {
    display: flex;
  }
  body {
    padding-bottom: 62px;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .page-header h1 {
    font-size: 1.6rem;
  }
  .filter-bar {
    gap: 8px;
  }
  .filter-tag {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
  .sort-select {
    margin-left: 0;
    width: 100%;
  }
  .data-strip {
    padding: 18px;
    flex-direction: column;
    align-items: flex-start;
  }
  .subscribe-box {
    padding: 24px;
  }
}

/* roulang page: category4 */
:root {
            --bg-primary: #0c0f0d;
            --bg-secondary: #121712;
            --bg-card: #1a211c;
            --bg-card-hover: #202a22;
            --accent: #c8ff3d;
            --accent-dim: #b8f135;
            --accent-dark: #9ed12b;
            --gold: #f5b84b;
            --gold-dim: #d9a23c;
            --red-brick: #c05a4a;
            --text-primary: #f5f7f2;
            --text-secondary: #b5bfae;
            --text-muted: #7e8a79;
            --border-subtle: rgba(200, 255, 61, 0.14);
            --border-hover: rgba(200, 255, 61, 0.45);
            --border-gold: rgba(245, 184, 75, 0.35);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 28px rgba(200, 255, 61, 0.12);
            --shadow-gold: 0 0 20px rgba(245, 184, 75, 0.1);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --nav-height: 76px;
            --nav-height-mobile: 62px;
            --transition-fast: 0.22s ease;
            --transition-base: 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

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

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

        button {
            cursor: pointer;
        }

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

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: rgba(12, 15, 13, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(200, 255, 61, 0.1);
            z-index: 1000;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(12, 15, 13, 0.96);
            border-bottom-color: rgba(200, 255, 61, 0.22);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .nav-logo:hover {
            color: var(--accent);
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #0c0f0d;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--accent);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 24px;
            text-decoration: none;
            white-space: nowrap;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 0 0 rgba(200, 255, 61, 0);
        }

        .nav-cta:hover {
            background: var(--accent-dim);
            color: #0c0f0d;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(200, 255, 61, 0.3);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 4px;
        }

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

        /* Breadcrumb */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 28px);
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(200, 255, 61, 0.08);
            background: rgba(12, 15, 13, 0.7);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--text-muted);
        }

        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        /* Compact Category Header */
        .category-header {
            padding: 28px 0 20px;
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 255, 61, 0.06), transparent 70%);
            pointer-events: none;
        }

        .category-header-inner {
            position: relative;
        }

        .category-header h1 {
            font-size: 2.4rem;
            font-weight: 800;
            margin: 0 0 10px;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .category-header .subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 0;
            max-width: 720px;
        }

        /* Filter / Sort Bar */
        .filter-bar {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin: 20px 0 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }

        .filter-chip {
            padding: 6px 14px;
            border-radius: 16px;
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--border-hover);
            color: var(--accent);
        }

        .filter-chip.active {
            background: var(--accent);
            color: #0c0f0d;
            border-color: var(--accent);
            font-weight: 600;
        }

        .sort-select {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 8px;
            padding: 6px 12px;
            color: var(--text-secondary);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }

        .sort-select:hover,
        .sort-select:focus {
            border-color: var(--border-hover);
            color: var(--accent);
        }

        /* Report Cards List */
        .report-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            padding: 0 0 40px;
        }

        .report-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            box-shadow: var(--shadow-card);
        }

        .report-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            transform: translateY(-3px);
        }

        .report-card-inner {
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding: 20px;
        }

        .report-card-top {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .report-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

        .report-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .report-info {
            flex: 1;
        }

        .report-tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .report-tag {
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(200, 255, 61, 0.08);
            color: var(--accent);
            border: 1px solid rgba(200, 255, 61, 0.15);
            font-weight: 500;
        }

        .report-tag.gold {
            background: rgba(245, 184, 75, 0.08);
            color: var(--gold);
            border-color: rgba(245, 184, 75, 0.2);
        }

        .report-card h2 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .report-card h2 a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .report-card h2 a:hover {
            color: var(--accent);
        }

        .report-summary {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin: 0 0 10px;
            line-height: 1.7;
        }

        .report-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        .report-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .report-meta .highlight {
            color: var(--gold);
        }

        .report-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }

        .report-link:hover {
            gap: 8px;
            color: var(--accent-dim);
        }

        /* Section titles */
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 0 24px;
        }

        /* Category Description Block */
        .category-description {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin: 0 0 40px;
            position: relative;
            overflow: hidden;
        }

        .category-description::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(245, 184, 75, 0.08), transparent 70%);
            pointer-events: none;
        }

        .category-description p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .category-description p:last-child {
            margin-bottom: 0;
        }

        .category-description .keyword-highlight {
            color: var(--accent);
            font-weight: 600;
        }

        .category-description .gold-highlight {
            color: var(--gold);
            font-weight: 600;
        }

        /* Featured Reports */
        .featured-reports {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 0 0 40px;
        }

        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            box-shadow: var(--shadow-card);
        }

        .featured-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold), var(--shadow-card);
            transform: translateY(-3px);
        }

        .featured-thumb {
            height: 150px;
            overflow: hidden;
            position: relative;
        }

        .featured-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .featured-card:hover .featured-thumb img {
            transform: scale(1.04);
        }

        .featured-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--gold);
            color: #0c0f0d;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.02em;
        }

        .featured-body {
            padding: 18px;
        }

        .featured-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .featured-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* Data Tip Strip */
        .data-tip-strip {
            background: rgba(200, 255, 61, 0.05);
            border: 1px solid var(--border-subtle);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            margin: 0 0 40px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .data-tip-icon {
            width: 28px;
            height: 28px;
            background: rgba(200, 255, 61, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            flex-shrink: 0;
            font-size: 0.9rem;
        }

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

        .data-tip-strip strong {
            color: var(--accent);
            font-weight: 600;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            margin: 0 0 40px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 255, 61, 0.07), transparent 70%);
            pointer-events: none;
        }

        .subscribe-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            justify-content: space-between;
        }

        .subscribe-text h2 {
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .subscribe-text p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin: 0;
            max-width: 500px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 8px;
            padding: 10px 16px;
            min-width: 240px;
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.12);
        }

        .subscribe-form button {
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 24px;
            border-radius: 24px;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--accent-dim);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(200, 255, 61, 0.3);
        }

        /* FAQ */
        .faq-section {
            margin: 0 0 40px;
        }

        .faq-list {
            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: border-color var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            text-align: left;
            cursor: pointer;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            transition: color var(--transition-fast);
        }

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

        .faq-arrow {
            font-size: 1.2rem;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        /* Back / More Section */
        .back-more {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0 10px;
        }

        .back-link {
            font-size: 0.9rem;
            color: var(--text-secondary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }

        .back-link:hover {
            color: var(--accent);
        }

        .more-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .more-links a {
            font-size: 0.88rem;
            color: var(--accent);
            text-decoration: none;
            padding: 8px 16px;
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .more-links a:hover {
            background: rgba(200, 255, 61, 0.08);
            border-color: var(--border-hover);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 32px;
            margin-top: 20px;
        }

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

        .footer-brand .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(200, 255, 61, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .beian-info {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            gap: 8px;
            align-items: center;
            margin-left: auto;
        }

        .footer-links a {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

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

        /* Fixed bottom CTA for mobile */
        .bottom-fixed-cta {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(12, 15, 13, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(200, 255, 61, 0.18);
            padding: 10px 16px;
            z-index: 900;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .bottom-fixed-cta .cta-text {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .bottom-fixed-cta .cta-btn {
            background: var(--accent);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 18px;
            border-radius: 20px;
            white-space: nowrap;
            text-decoration: none;
            transition: background var(--transition-fast);
        }

        .bottom-fixed-cta .cta-btn:hover {
            background: var(--accent-dim);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

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

            .report-card-top {
                flex-direction: column;
            }

            .report-thumb {
                width: 100%;
                height: 140px;
            }

            .nav-links {
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-wrapper {
                gap: 12px;
            }

            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(12, 15, 13, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(200, 255, 61, 0.12);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                z-index: 999;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateX(0);
            }

            .nav-links a {
                display: block;
                padding: 14px 0;
                font-size: 1.05rem;
                border-bottom: 1px solid rgba(200, 255, 61, 0.06);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-links a.active {
                background: rgba(200, 255, 61, 0.08);
                padding-left: 12px;
                border-radius: 8px;
            }

            .nav-cta {
                margin-top: 16px;
                justify-content: center;
                width: 100%;
                border-radius: 12px;
            }

            .hamburger {
                display: flex;
            }

            .category-header h1 {
                font-size: 1.8rem;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 14px 16px;
            }

            .featured-reports {
                grid-template-columns: 1fr;
            }

            .report-card-inner {
                padding: 16px;
            }

            .subscribe-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-links {
                margin-left: 0;
            }

            .bottom-fixed-cta {
                display: flex;
            }

            body {
                padding-bottom: 70px;
            }

            .category-description {
                padding: 20px 16px;
            }

            .subscribe-cta {
                padding: 24px 20px;
            }

            .section-title {
                font-size: 1.45rem;
            }
        }

        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 1.5rem;
            }

            .report-card h2 {
                font-size: 1.1rem;
            }

            .report-tag {
                font-size: 0.7rem;
                padding: 2px 8px;
            }

            .report-meta {
                font-size: 0.72rem;
                gap: 8px;
            }

            .featured-thumb {
                height: 120px;
            }

            .faq-question {
                font-size: 0.88rem;
                padding: 16px;
            }

            .faq-answer p {
                font-size: 0.85rem;
            }

            .bottom-fixed-cta {
                padding: 8px 12px;
            }

            .bottom-fixed-cta .cta-text {
                font-size: 0.75rem;
            }

            .bottom-fixed-cta .cta-btn {
                font-size: 0.78rem;
                padding: 7px 14px;
            }
        }