/* roulang page: index */
:root {
            --bg-base: #0a0f1e;
            --bg-deep: #070b16;
            --bg-panel: #0d1425;
            --bg-panel-alt: #0f1b2d;
            --gold: #c9a978;
            --gold-light: #e5c99a;
            --gold-soft: rgba(201, 169, 120, 0.18);
            --gold-glow: rgba(201, 169, 120, 0.5);
            --pearl: #f5f2eb;
            --pearl-dim: #d9d6cf;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8c887e;
            --line-dark: rgba(255, 255, 255, 0.08);
            --line-mid: rgba(255, 255, 255, 0.14);
            --line-gold: rgba(201, 169, 120, 0.32);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --glass-bg-hover: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.22);
            --card-radius: 14px;
            --card-radius-sm: 10px;
            --card-radius-lg: 18px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
            --container-max: 1200px;
            --nav-height: 96px;
            --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-base);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(20, 35, 65, 0.6) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(10, 18, 34, 0.8) 0%, transparent 60%),
                linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

        ::selection {
            background: rgba(201, 169, 120, 0.28);
            color: var(--pearl);
        }

        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-deep);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(201, 169, 120, 0.35);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(201, 169, 120, 0.55);
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            background: none;
            border: none;
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        p {
            color: var(--text-secondary);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-dark);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.94);
            border-bottom-color: var(--line-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            height: var(--nav-height);
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-brand-text {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            line-height: 1.1;
            font-family: var(--font-serif);
            position: relative;
        }

        .nav-brand-text::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            opacity: 0.7;
        }

        .nav-brand-sub {
            font-size: 11px;
            letter-spacing: 0.28em;
            color: var(--text-muted);
            text-transform: uppercase;
            font-family: var(--font-mono);
            padding-left: 14px;
            border-left: 1px solid var(--line-mid);
            line-height: 1.4;
        }

        .nav-divider {
            width: 1px;
            height: 36px;
            background: var(--line-mid);
            flex-shrink: 0;
        }

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

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            font-size: 13px;
            letter-spacing: 0.1em;
            color: var(--text-secondary);
            padding: 6px 2px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            width: 0;
            height: 1px;
            background: var(--gold);
            transform: translateX(-50%);
            transition: width var(--transition-fast);
        }

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

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

        .nav-links a.active {
            color: var(--gold-light);
        }

        .nav-mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 8px;
            background: none;
            border: 1px solid var(--line-mid);
            border-radius: 6px;
            transition: border-color var(--transition-fast);
        }

        .nav-mobile-toggle:hover {
            border-color: var(--gold);
        }

        .nav-mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--pearl);
            transition: all var(--transition-fast);
        }

        .nav-mobile-toggle.is-open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-mobile-toggle.is-open span:nth-child(2) {
            opacity: 0;
        }
        .nav-mobile-toggle.is-open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .nav-mobile-menu {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(10, 15, 30, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-mid);
            padding: 24px 32px 32px;
            z-index: 99;
        }

        .nav-mobile-menu.is-open {
            display: block;
        }

        .nav-mobile-menu ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .nav-mobile-menu a {
            display: block;
            padding: 14px 8px;
            font-size: 16px;
            letter-spacing: 0.08em;
            color: var(--text-primary);
            border-bottom: 1px solid var(--line-dark);
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }

        .nav-mobile-menu a:hover,
        .nav-mobile-menu a.active {
            color: var(--gold-light);
            padding-left: 16px;
        }

        /* ========== HERO ========== */
        .hero {
            min-height: 88vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: calc(var(--nav-height) + 48px) 0 80px;
            background-image:
                linear-gradient(180deg, rgba(10, 15, 30, 0.35) 0%, rgba(10, 15, 30, 0.75) 100%),
                url('/assets/images/65d047b62604b8ae.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at center 30%, rgba(201, 169, 120, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 70%, rgba(15, 28, 50, 0.6) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            font-size: 12px;
            letter-spacing: 0.22em;
            color: var(--gold);
            border: 1px solid var(--line-gold);
            border-radius: 30px;
            margin-bottom: 28px;
            background: rgba(201, 169, 120, 0.06);
        }

        .hero h1 {
            font-size: clamp(28px, 5vw, 44px);
            font-weight: 800;
            color: var(--pearl);
            letter-spacing: 0.04em;
            margin-bottom: 24px;
            font-family: var(--font-serif);
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .hero-sub {
            font-size: 16px;
            line-height: 1.85;
            color: var(--pearl-dim);
            max-width: 680px;
            margin: 0 auto 36px;
            letter-spacing: 0.02em;
        }

        .hero-search {
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
        }

        .hero-search input {
            width: 100%;
            padding: 16px 56px 16px 22px;
            font-size: 15px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--glass-border);
            color: var(--pearl);
            letter-spacing: 0.03em;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .hero-search input::placeholder {
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        .hero-search input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 20px rgba(201, 169, 120, 0.25);
            background: rgba(255, 255, 255, 0.09);
            outline: none;
        }

        .hero-search button {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gold-soft);
            border: 1px solid var(--line-gold);
            color: var(--gold-light);
            font-size: 17px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .hero-search button:hover {
            background: rgba(201, 169, 120, 0.28);
            box-shadow: 0 0 18px var(--gold-glow);
            transform: translateY(-50%) scale(1.04);
        }

        .hero-search button:active {
            transform: translateY(-50%) scale(0.96);
        }

        .hero-search button:focus {
            outline: 1px solid var(--pearl);
            outline-offset: 2px;
        }

        .hero-quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            list-style: none;
        }

        .hero-quick-tags a {
            display: inline-block;
            padding: 8px 20px;
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--text-secondary);
            border: 1px solid var(--line-dark);
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.04);
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .hero-quick-tags a:hover {
            color: var(--gold-light);
            border-color: var(--line-gold);
            background: rgba(201, 169, 120, 0.08);
            box-shadow: 0 0 12px rgba(201, 169, 120, 0.18);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .section-alt {
            background: rgba(13, 20, 37, 0.5);
            border-top: 1px solid var(--line-dark);
            border-bottom: 1px solid var(--line-dark);
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-label {
            display: inline-block;
            font-size: 11px;
            letter-spacing: 0.28em;
            color: var(--gold);
            text-transform: uppercase;
            margin-bottom: 12px;
            font-family: var(--font-mono);
        }

        .section-title {
            font-size: clamp(22px, 3.5vw, 30px);
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== GLASS CARD BASE ========== */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            padding: 28px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-card);
            transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

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

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.06em;
            border-radius: 32px;
            transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary {
            background: rgba(201, 169, 120, 0.14);
            color: var(--gold-light);
            border: 1px solid var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.35);
        }

        .btn-primary:hover {
            background: rgba(201, 169, 120, 0.24);
            box-shadow: 0 0 30px rgba(201, 169, 120, 0.55);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 10px rgba(201, 169, 120, 0.3);
        }

        .btn-primary:focus {
            outline: 1px solid var(--pearl);
            outline-offset: 3px;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--pearl);
            border: 1px solid var(--glass-border);
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.06);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 22px rgba(255, 255, 255, 0.16);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        .btn-secondary:focus {
            outline: 1px solid var(--pearl);
            outline-offset: 3px;
        }

        /* ========== METRIC / STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-number {
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            font-family: var(--font-mono);
            color: var(--gold-light);
            letter-spacing: 0.02em;
            text-shadow: 0 0 18px rgba(201, 169, 120, 0.35);
            margin-bottom: 8px;
            line-height: 1.1;
        }

        .stat-label {
            font-size: 13px;
            letter-spacing: 0.12em;
            color: var(--text-secondary);
            text-transform: uppercase;
        }

        /* ========== SERVICES MATRIX ========== */
        .services-editorial {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .service-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--card-radius);
            border: 1px solid var(--glass-border);
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            border-color: var(--glass-border-hover);
            background: rgba(255, 255, 255, 0.065);
        }

        .service-card.small {
            grid-column: span 4;
        }

        .service-card.large {
            grid-column: span 6;
        }

        .service-card.wide {
            grid-column: span 7;
        }

        .service-card.tall {
            grid-column: span 5;
        }

        .service-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }

        .service-card.large img {
            height: 260px;
        }

        .service-card.wide img {
            height: 300px;
        }

        .service-card-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .service-card-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        .service-card-link {
            display: inline-block;
            margin-top: 16px;
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--gold-light);
            transition: color var(--transition-fast);
        }

        .service-card-link:hover {
            color: var(--gold);
        }

        /* ========== COMPARISON ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .comparison-card {
            padding: 0;
            overflow: hidden;
        }

        .comparison-header {
            padding: 20px 24px;
            background: rgba(201, 169, 120, 0.07);
            border-bottom: 1px solid var(--line-dark);
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.06em;
            font-size: 15px;
        }

        .comparison-body {
            padding: 24px;
        }

        .comparison-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--line-dark);
        }

        .comparison-item:last-child {
            border-bottom: none;
        }

        .comparison-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .comparison-value {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--gold-light);
        }

        .comparison-value.positive {
            color: #8fc9a8;
        }

        .comparison-value.negative {
            color: #d9a0a0;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-content h2 {
            margin-bottom: 20px;
        }

        .brand-intro-content p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .brand-intro-image {
            border-radius: var(--card-radius-lg);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            box-shadow: var(--shadow-card);
        }

        .brand-intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        /* ========== TIMELINE ========== */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: 6px;
            width: 1px;
            background: linear-gradient(180deg, var(--line-gold), var(--line-dark), var(--line-gold));
        }

        .timeline-item {
            position: relative;
            padding: 0 0 32px 28px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 8px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 10px rgba(201, 169, 120, 0.5);
        }

        .timeline-year {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--gold-light);
            letter-spacing: 0.14em;
            margin-bottom: 6px;
        }

        .timeline-item h3 {
            font-size: 16px;
            color: var(--pearl);
            margin-bottom: 8px;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

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

        .news-card {
            padding: 0;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .news-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }

        .news-card-content {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-date {
            font-size: 11px;
            font-family: var(--font-mono);
            letter-spacing: 0.14em;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-card-content h3 {
            font-size: 16px;
            color: var(--pearl);
            margin-bottom: 10px;
            font-weight: 600;
            line-height: 1.45;
        }

        .news-card-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        /* ========== SPOTLIGHT ========== */
        .spotlight {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .spotlight-image {
            border-radius: var(--card-radius);
            overflow: hidden;
            border: 1px solid var(--glass-border);
        }

        .spotlight-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .spotlight-content h3 {
            font-size: 20px;
            color: var(--pearl);
            margin-bottom: 14px;
        }

        .spotlight-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .spotlight-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
        }

        .spotlight-tags li {
            font-size: 12px;
            padding: 5px 14px;
            letter-spacing: 0.06em;
            color: var(--text-secondary);
            border: 1px solid var(--line-dark);
            border-radius: 18px;
        }

        /* ========== SECURITY / TRUST ========== */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .trust-card {
            padding: 22px 18px;
            text-align: center;
        }

        .trust-icon {
            font-size: 28px;
            color: var(--gold-light);
            margin-bottom: 14px;
            display: inline-block;
            text-shadow: 0 0 12px rgba(201, 169, 120, 0.4);
        }

        .trust-card h3 {
            font-size: 15px;
            color: var(--pearl);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .trust-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== QUICK ANSWERS ========== */
        .quick-answers {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .qa-item {
            padding: 18px 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line-dark);
            border-radius: var(--card-radius-sm);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .qa-item:hover {
            border-color: var(--line-gold);
            background: rgba(255, 255, 255, 0.055);
        }

        .qa-item strong {
            display: block;
            font-size: 14px;
            color: var(--pearl);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }

        .qa-item span {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

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

        .scene-card {
            padding: 0;
            overflow: hidden;
            position: relative;
        }

        .scene-card img {
            width: 100%;
            height: 230px;
            object-fit: cover;
        }

        .scene-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(10, 15, 30, 0.9) 100%);
            display: flex;
            align-items: flex-end;
            padding: 24px;
        }

        .scene-card-overlay h3 {
            font-size: 17px;
            color: var(--pearl);
            margin-bottom: 4px;
        }

        .scene-card-overlay p {
            font-size: 13px;
            color: var(--pearl-dim);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--line-dark);
            border-radius: var(--card-radius-sm);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--pearl);
            letter-spacing: 0.04em;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            font-size: 18px;
            color: var(--gold);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

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

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }

        .faq-item.is-open .faq-answer {
            display: block;
        }

        /* ========== CONVERT FORM ========== */
        .convert-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .convert-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-field {
            position: relative;
        }

        .form-field input {
            width: 100%;
            padding: 14px 18px;
            font-size: 14px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--line-dark);
            color: var(--pearl);
            letter-spacing: 0.03em;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
        }

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

        .form-field input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 14px rgba(201, 169, 120, 0.2);
            background: rgba(255, 255, 255, 0.07);
            outline: none;
        }

        .form-submit {
            padding: 15px 28px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.06em;
            border-radius: 28px;
            background: rgba(201, 169, 120, 0.14);
            color: var(--gold-light);
            border: 1px solid var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.35);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .form-submit:hover {
            background: rgba(201, 169, 120, 0.24);
            box-shadow: 0 0 30px rgba(201, 169, 120, 0.55);
            transform: translateY(-2px);
        }

        .form-submit:active {
            transform: translateY(1px);
        }

        .form-submit:focus {
            outline: 1px solid var(--pearl);
            outline-offset: 3px;
        }

        /* ========== MEMBER PROMO ========== */
        .member-promo {
            background: rgba(201, 169, 120, 0.07);
            border: 1px solid var(--line-gold);
            border-radius: var(--card-radius-lg);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: center;
        }

        .member-promo h3 {
            font-size: 22px;
            color: var(--pearl);
            margin-bottom: 12px;
        }

        .member-promo p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== SUBSCRIBE ========== */
        .subscribe-section {
            background: linear-gradient(180deg, rgba(13, 20, 37, 0.7) 0%, rgba(10, 15, 30, 0.9) 100%);
        }

        .subscribe-inner {
            max-width: 620px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-input-row {
            display: flex;
            gap: 12px;
            margin-top: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-input-row input {
            flex: 1;
            min-width: 240px;
            padding: 14px 20px;
            font-size: 14px;
            border-radius: 28px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--line-dark);
            color: var(--pearl);
            letter-spacing: 0.03em;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .subscribe-input-row input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 14px rgba(201, 169, 120, 0.2);
            outline: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--line-dark);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 28px;
            font-weight: 800;
            font-family: var(--font-serif);
            color: var(--pearl);
            letter-spacing: 0.1em;
            margin-bottom: 12px;
        }

        .footer-tagline {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 12px;
            letter-spacing: 0.14em;
            color: var(--text-muted);
            text-transform: uppercase;
            margin-bottom: 16px;
            font-weight: 600;
        }

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

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--line-dark);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

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

        .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--gold-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
            .nav-links a {
                font-size: 12px;
                letter-spacing: 0.06em;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-editorial {
                grid-template-columns: repeat(6, 1fr);
            }
            .service-card.small,
            .service-card.large,
            .service-card.wide,
            .service-card.tall {
                grid-column: span 3;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            :root {
                --section-gap: 56px;
                --nav-height: 72px;
            }
            .nav-links {
                display: none;
            }
            .nav-divider {
                display: none;
            }
            .nav-mobile-toggle {
                display: flex;
            }
            .nav-brand-sub {
                display: none;
            }
            .nav-brand-text {
                font-size: 28px;
            }
            .hero {
                min-height: 78vh;
                padding-top: calc(var(--nav-height) + 32px);
            }
            .hero h1 {
                font-size: clamp(24px, 5vw, 32px);
            }
            .hero-sub {
                font-size: 14px;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-image img {
                height: 260px;
            }
            .services-editorial {
                grid-template-columns: 1fr;
            }
            .service-card.small,
            .service-card.large,
            .service-card.wide,
            .service-card.tall {
                grid-column: span 1;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .spotlight {
                grid-template-columns: 1fr;
            }
            .quick-answers {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .convert-grid {
                grid-template-columns: 1fr;
            }
            .member-promo {
                grid-template-columns: 1fr;
                padding: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --section-gap: 40px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 26px;
            }
            .hero-quick-tags a {
                padding: 6px 14px;
                font-size: 12px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 13px;
            }
            .subscribe-input-row input {
                min-width: 100%;
            }
            .service-card img {
                height: 160px;
            }
            .service-card.wide img {
                height: 200px;
            }
        }

/* roulang page: category2 */
:root {
 --bg-base: #0a0f1e;
 --bg-deep: #070b16;
 --bg-panel: #0d1425;
 --bg-panel-alt: #0f1b2d;
 --gold: #c9a978;
 --gold-light: #e5c99a;
 --gold-soft: rgba(201, 169, 120, 0.18);
 --gold-glow: rgba(201, 169, 120, 0.5);
 --pearl: #f5f2eb;
 --pearl-dim: #d9d6cf;
 --text-primary: #e8e4dc;
 --text-secondary: #b8b4aa;
 --text-muted: #8c887e;
 --line-dark: rgba(255, 255, 255, 0.08);
 --line-mid: rgba(255, 255, 255, 0.14);
 --line-gold: rgba(201, 169, 120, 0.32);
 --glass-bg: rgba(255, 255, 255, 0.055);
 --glass-bg-hover: rgba(255, 255, 255, 0.08);
 --glass-border: rgba(255, 255, 255, 0.12);
 --glass-border-hover: rgba(255, 255, 255, 0.22);
 --card-radius: 14px;
 --card-radius-sm: 10px;
 --card-radius-lg: 18px;
 --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
 --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
 --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
 --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
 --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
 --section-gap: 64px;
 --section-gap-mobile: 40px;
 --container-max: 1200px;
 --nav-height: 96px;
 --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
 --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
 --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }
html {
 scroll-behavior: smooth;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 scrollbar-width: thin;
 scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
}
body {
 font-family: var(--font-sans);
 font-size: 15px;
 line-height: 1.75;
 color: var(--text-primary);
 background-color: var(--bg-base);
 background-image:
  radial-gradient(ellipse at 18% 8%, rgba(20, 35, 65, 0.65) 0%, transparent 55%),
  radial-gradient(ellipse at 82% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%),
  radial-gradient(ellipse at 50% 78%, rgba(10, 18, 34, 0.8) 0%, transparent 60%),
  linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
 background-attachment: fixed;
 min-height: 100vh;
 overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), opacity var(--transition-fast); }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
input, textarea { background: none; border: none; outline: none; }

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 32px; }

/* HEADER / MAGAZINE MASTHEAD NAV */
.site-header {
 position: fixed;
 top: 0; left: 0; right: 0;
 z-index: 100;
 background: rgba(10, 15, 30, 0.84);
 backdrop-filter: blur(20px);
 -webkit-backdrop-filter: blur(20px);
 border-bottom: 1px solid var(--line-dark);
 transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
}
.site-header.scrolled {
 background: rgba(10, 15, 30, 0.95);
 border-bottom-color: var(--line-gold);
 box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.nav-inner {
 display: flex;
 align-items: center;
 justify-content: space-between;
 min-height: var(--nav-height);
 height: var(--nav-height);
 gap: 24px;
}
.nav-brand {
 display: flex;
 align-items: center;
 gap: 14px;
 flex-shrink: 0;
}
.nav-brand-text {
 font-size: 34px;
 font-weight: 800;
 letter-spacing: 0.12em;
 color: var(--pearl);
 font-family: var(--font-serif);
}
.nav-brand-sub {
 font-size: 11px;
 letter-spacing: 0.22em;
 color: var(--gold);
 text-transform: uppercase;
 margin-top: 4px;
 white-space: nowrap;
}
.nav-links {
 display: flex;
 align-items: center;
 gap: 0;
 list-style: none;
 margin: 0;
 padding: 0;
}
.nav-links li {
 position: relative;
}
.nav-links li::before {
 content: '';
 width: 1px;
 height: 18px;
 background: var(--line-gold);
 margin: 0 16px;
}
.nav-links li:first-child::before { display: none; }
.nav-links li a {
 display: block;
 font-size: 13.5px;
 letter-spacing: 0.1em;
 color: var(--text-secondary);
 padding: 6px 0;
 transition: color var(--transition-fast), text-shadow var(--transition-fast);
 white-space: nowrap;
}
.nav-links li a:hover {
 color: var(--gold-light);
 text-shadow: 0 0 20px rgba(201, 169, 120, 0.35);
}
.nav-links li a.active {
 color: var(--gold-light);
 text-shadow: 0 0 20px rgba(201, 169, 120, 0.4);
}
.nav-links li a.active::after {
 content: '';
 position: absolute;
 left: 0; right: 0; bottom: -4px;
 height: 2px;
 background: linear-gradient(90deg, transparent, var(--gold), transparent);
 border-radius: 2px;
}
.nav-toggle {
 display: none;
 flex-direction: column;
 gap: 5px;
 padding: 8px;
}
.nav-toggle span {
 display: block;
 width: 24px;
 height: 2px;
 background: var(--pearl);
 border-radius: 2px;
 transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* MAIN */
main {
 padding-top: var(--nav-height);
 min-height: 70vh;
}
.section {
 padding: var(--section-gap) 0;
 position: relative;
}
.section-tight {
 padding: calc(var(--section-gap) * 0.6) 0;
}
.section-alt {
 background: rgba(7, 11, 22, 0.55);
 border-top: 1px solid var(--line-dark);
 border-bottom: 1px solid var(--line-dark);
}

/* BREADCRUMB */
.breadcrumb-row {
 display: flex;
 align-items: center;
 gap: 8px;
 font-size: 13px;
 color: var(--text-muted);
 flex-wrap: wrap;
 margin-bottom: 28px;
}
.breadcrumb-row a { color: var(--text-muted); transition: color var(--transition-fast); }
.breadcrumb-row a:hover { color: var(--gold-light); }
.breadcrumb-sep { color: var(--line-gold); font-size: 12px; }

/* TITLE AREA */
.category-title-area {
 padding: 48px 0 28px;
 border-bottom: 1px solid var(--line-dark);
}
.category-title-area h1 {
 font-size: 34px;
 font-weight: 800;
 letter-spacing: 0.04em;
 color: var(--pearl);
 margin: 0 0 16px;
 font-family: var(--font-serif);
 line-height: 1.35;
}
.category-desc {
 font-size: 15px;
 color: var(--text-secondary);
 max-width: 720px;
 line-height: 1.9;
}
.category-meta {
 display: flex;
 align-items: center;
 gap: 16px;
 margin-top: 18px;
 font-size: 12px;
 color: var(--text-muted);
 flex-wrap: wrap;
}
.category-meta .divider { width: 4px; height: 4px; background: var(--gold); border-radius: 50%; }
.category-meta span { letter-spacing: 0.05em; }

/* GLASS CARD */
.glass-card {
 background: var(--glass-bg);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border: 1px solid var(--glass-border);
 border-radius: var(--card-radius);
 box-shadow: var(--shadow-card);
 transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
 overflow: hidden;
}
.glass-card:hover {
 background: var(--glass-bg-hover);
 border-color: var(--glass-border-hover);
 box-shadow: var(--shadow-card-hover);
 transform: translateY(-3px);
}
.glass-card-sm {
 border-radius: var(--card-radius-sm);
}
.glass-card-lg {
 border-radius: var(--card-radius-lg);
}

/* TAG / BADGE */
.tag {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 font-size: 12px;
 letter-spacing: 0.08em;
 color: var(--gold);
 background: var(--gold-soft);
 border: 1px solid rgba(201, 169, 120, 0.25);
 border-radius: 999px;
 padding: 5px 14px;
 white-space: nowrap;
}
.tag-outline {
 background: transparent;
 border-color: var(--line-mid);
 color: var(--text-secondary);
}
.tag-sm { font-size: 11px; padding: 3px 10px; }

/* BUTTONS */
.btn-glow {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 10px;
 font-size: 14px;
 font-weight: 600;
 letter-spacing: 0.06em;
 color: var(--gold);
 background: rgba(13, 20, 37, 0.8);
 border: 1px solid rgba(201, 169, 120, 0.4);
 border-radius: 999px;
 padding: 12px 32px;
 box-shadow: 0 0 18px rgba(201, 169, 120, 0.35), 0 0 1px rgba(255, 255, 255, 0.08) inset;
 transition: all var(--transition-med);
 cursor: pointer;
}
.btn-glow:hover {
 color: var(--gold-light);
 border-color: rgba(201, 169, 120, 0.7);
 box-shadow: 0 0 32px rgba(201, 169, 120, 0.55), 0 0 2px rgba(255, 255, 255, 0.12) inset;
 transform: translateY(-1px);
}
.btn-glow:active {
 transform: translateY(0px);
 box-shadow: 0 0 12px rgba(201, 169, 120, 0.3);
}
.btn-glow:focus-visible {
 outline: 1px solid var(--pearl);
 outline-offset: 3px;
}
.btn-ghost {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 10px;
 font-size: 14px;
 font-weight: 500;
 letter-spacing: 0.06em;
 color: var(--pearl);
 background: rgba(255, 255, 255, 0.04);
 border: 1px solid rgba(255, 255, 255, 0.18);
 border-radius: 999px;
 padding: 12px 30px;
 box-shadow: 0 0 12px rgba(255, 255, 255, 0.08);
 transition: all var(--transition-med);
 cursor: pointer;
}
.btn-ghost:hover {
 color: #fff;
 border-color: rgba(255, 255, 255, 0.38);
 box-shadow: 0 0 22px rgba(255, 255, 255, 0.16);
 transform: translateY(-1px);
}
.btn-ghost:active {
 transform: translateY(0px);
 box-shadow: 0 0 8px rgba(255, 255, 255, 0.08);
}
.btn-ghost:focus-visible {
 outline: 1px solid var(--pearl);
 outline-offset: 3px;
}

/* FEATURED SPOTLIGHT */
.featured-grid {
 display: grid;
 grid-template-columns: 1.3fr 1fr;
 gap: 28px;
}
.featured-main {
 position: relative;
 border-radius: var(--card-radius-lg);
 overflow: hidden;
 min-height: 400px;
 display: flex;
 align-items: flex-end;
}
.featured-main img {
 position: absolute;
 inset: 0;
 width: 100%;
 height: 100%;
 object-fit: cover;
}
.featured-main .overlay {
 position: relative;
 z-index: 1;
 padding: 40px;
 background: linear-gradient(180deg, transparent 0%, rgba(7, 11, 22, 0.85) 55%, rgba(7, 11, 22, 0.96) 100%);
 width: 100%;
}
.featured-main h3 {
 font-size: 24px;
 font-weight: 700;
 color: var(--pearl);
 margin: 12px 0 8px;
 line-height: 1.5;
}
.featured-main p {
 color: var(--text-secondary);
 font-size: 14px;
 margin: 0;
 max-width: 520px;
 line-height: 1.8;
}
.featured-side {
 display: flex;
 flex-direction: column;
 gap: 20px;
}
.featured-side .glass-card {
 padding: 24px;
 display: flex;
 gap: 16px;
 align-items: center;
}
.featured-side .glass-card img {
 width: 100px;
 height: 80px;
 object-fit: cover;
 border-radius: 8px;
 flex-shrink: 0;
}
.featured-side h4 {
 font-size: 15px;
 font-weight: 600;
 color: var(--pearl);
 margin: 0 0 4px;
 line-height: 1.5;
}
.featured-side .meta {
 font-size: 12px;
 color: var(--text-muted);
}

/* LIST CARD */
.article-list-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 24px;
}
.article-card {
 display: flex;
 flex-direction: column;
 height: 100%;
}
.article-card .card-img {
 width: 100%;
 aspect-ratio: 16/10;
 object-fit: cover;
}
.article-card .card-body {
 padding: 22px;
 display: flex;
 flex-direction: column;
 flex: 1;
}
.article-card .card-title {
 font-size: 17px;
 font-weight: 700;
 color: var(--pearl);
 margin: 10px 0 8px;
 line-height: 1.6;
}
.article-card .card-excerpt {
 font-size: 13.5px;
 color: var(--text-secondary);
 flex: 1;
 line-height: 1.8;
}
.article-card .card-meta {
 display: flex;
 align-items: center;
 gap: 12px;
 margin-top: 16px;
 font-size: 12px;
 color: var(--text-muted);
}
.article-card .card-link {
 font-size: 13px;
 font-weight: 600;
 color: var(--gold);
 letter-spacing: 0.05em;
}

/* ARTICLE LIST ROW */
.article-row-list {
 display: flex;
 flex-direction: column;
 gap: 16px;
}
.article-row-item {
 display: flex;
 gap: 20px;
 align-items: center;
 padding: 18px;
 background: var(--glass-bg);
 border: 1px solid var(--line-dark);
 border-radius: var(--card-radius-sm);
 transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
}
.article-row-item:hover {
 background: var(--glass-bg-hover);
 border-color: var(--line-mid);
 box-shadow: var(--shadow-card);
}
.article-row-item img {
 width: 120px;
 height: 84px;
 object-fit: cover;
 border-radius: 8px;
 flex-shrink: 0;
}
.article-row-item .row-content h4 {
 font-size: 15px;
 font-weight: 600;
 color: var(--pearl);
 margin: 0 0 4px;
}
.article-row-item .row-content p {
 font-size: 13px;
 color: var(--text-muted);
 margin: 0;
}
.article-row-item .row-link {
 font-size: 12px;
 color: var(--gold);
 font-weight: 600;
 white-space: nowrap;
}

/* DATA METRICS */
.metrics-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 20px;
}
.metric-card {
 padding: 28px 22px;
 text-align: left;
}
.metric-value {
 font-size: 32px;
 font-weight: 800;
 font-family: var(--font-mono);
 color: var(--gold-light);
 text-shadow: 0 0 28px rgba(201, 169, 120, 0.4);
 letter-spacing: -0.02em;
 line-height: 1.2;
 margin-bottom: 6px;
}
.metric-label {
 font-size: 13px;
 letter-spacing: 0.08em;
 color: var(--text-secondary);
}
.metric-delta {
 font-size: 12px;
 color: var(--gold);
 margin-top: 8px;
 display: flex;
 align-items: center;
 gap: 6px;
}
.metric-delta.negative { color: #b8b4aa; }

/* TAGS */
.tags-row {
 display: flex;
 flex-wrap: wrap;
 gap: 12px;
}
.tags-row .tag {
 cursor: default;
}
.tags-row .tag:hover {
 background: rgba(201, 169, 120, 0.28);
 border-color: rgba(201, 169, 120, 0.45);
}

/* FAQ */
.faq-list {
 display: flex;
 flex-direction: column;
 gap: 0;
}
.faq-item {
 border-bottom: 1px solid var(--line-dark);
 padding: 20px 4px;
}
.faq-item:last-child { border-bottom: none; }
.faq-question {
 font-size: 16px;
 font-weight: 700;
 color: var(--pearl);
 margin: 0 0 10px;
 letter-spacing: 0.02em;
}
.faq-answer {
 font-size: 14px;
 color: var(--text-secondary);
 line-height: 1.85;
 margin: 0;
}

/* CTA / FORM */
.cta-section {
 padding: 56px 0;
}
.cta-card {
 padding: 44px 40px;
 text-align: center;
}
.cta-card h2 {
 font-size: 26px;
 font-weight: 700;
 color: var(--pearl);
 margin: 0 0 10px;
 font-family: var(--font-serif);
}
.cta-card p {
 color: var(--text-secondary);
 max-width: 560px;
 margin: 0 auto 28px;
 font-size: 14px;
 line-height: 1.85;
}
.form-inline {
 display: flex;
 gap: 12px;
 max-width: 520px;
 margin: 0 auto;
 flex-wrap: wrap;
 justify-content: center;
}
.form-inline input {
 flex: 1;
 min-width: 220px;
 padding: 14px 20px;
 background: rgba(255, 255, 255, 0.05);
 border: 1px solid var(--line-mid);
 border-radius: 999px;
 color: var(--pearl);
 font-size: 14px;
 transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-inline input::placeholder { color: var(--text-muted); }
.form-inline input:focus {
 border-color: rgba(201, 169, 120, 0.55);
 box-shadow: 0 0 16px rgba(201, 169, 120, 0.22);
 outline: none;
}

/* RELATED LINKS */
.related-links {
 display: flex;
 flex-wrap: wrap;
 gap: 10px;
}
.related-links a {
 font-size: 13.5px;
 color: var(--text-secondary);
 background: rgba(255, 255, 255, 0.04);
 border: 1px solid var(--line-dark);
 border-radius: 999px;
 padding: 8px 18px;
 transition: all var(--transition-fast);
}
.related-links a:hover {
 color: var(--gold-light);
 border-color: var(--line-gold);
 background: var(--gold-soft);
}

/* FOOTER */
.site-footer {
 background: rgba(7, 11, 22, 0.8);
 border-top: 1px solid var(--line-dark);
 padding: 56px 0 28px;
 margin-top: 40px;
}
.footer-grid {
 display: grid;
 grid-template-columns: 1.6fr 1fr 1fr 1fr;
 gap: 36px;
}
.footer-brand {
 font-size: 26px;
 font-weight: 800;
 color: var(--pearl);
 letter-spacing: 0.1em;
 font-family: var(--font-serif);
 margin-bottom: 8px;
}
.footer-tagline {
 font-size: 13px;
 color: var(--text-muted);
 line-height: 1.8;
 max-width: 280px;
}
.footer-col h4 {
 font-size: 14px;
 font-weight: 700;
 color: var(--pearl);
 letter-spacing: 0.08em;
 margin-bottom: 16px;
}
.footer-col ul {
 list-style: none;
 margin: 0;
 padding: 0;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
 font-size: 13px;
 color: var(--text-secondary);
 transition: color var(--transition-fast);
}
.footer-col ul li a:hover { color: var(--gold-light); }
.footer-bottom {
 display: flex;
 flex-wrap: wrap;
 justify-content: space-between;
 gap: 16px;
 align-items: center;
 margin-top: 36px;
 padding-top: 22px;
 border-top: 1px solid var(--line-dark);
 font-size: 12px;
 color: var(--text-muted);
}
.footer-legal {
 display: flex;
 flex-wrap: wrap;
 gap: 12px;
 align-items: center;
}
.footer-legal a { color: var(--text-muted); }
.footer-legal a:hover { color: var(--gold-light); }

/* RESPONSIVE */
@media (max-width: 1024px) {
 .featured-grid { grid-template-columns: 1fr; }
 .article-list-grid { grid-template-columns: repeat(2, 1fr); }
 .metrics-grid { grid-template-columns: repeat(2, 1fr); }
 .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
 :root { --nav-height: 64px; --section-gap: 40px; }
 .container { padding: 0 20px; }
 .nav-links {
  display: none;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: rgba(10, 15, 30, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  flex-direction: column;
  gap: 0;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line-gold);
 }
 .nav-links.open { display: flex; }
 .nav-links li::before { display: none; }
 .nav-links li { width: 100%; border-bottom: 1px solid var(--line-dark); }
 .nav-links li:last-child { border-bottom: none; }
 .nav-links li a { padding: 14px 0; font-size: 15px; display: block; }
 .nav-links li a.active::after { display: none; }
 .nav-toggle { display: flex; }
 .category-title-area h1 { font-size: 26px; }
 .featured-main { min-height: 280px; }
 .featured-main .overlay { padding: 24px; }
 .featured-side .glass-card { padding: 16px; }
 .featured-side .glass-card img { width: 80px; height: 64px; }
 .article-row-item { flex-direction: column; align-items: flex-start; }
 .article-row-item img { width: 100%; height: 160px; }
 .article-row-item .row-link { align-self: flex-start; }
 .cta-card { padding: 32px 20px; }
 .form-inline { flex-direction: column; }
 .form-inline input { min-width: 100%; }
 .footer-grid { grid-template-columns: 1fr; gap: 24px; }
 .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
 .article-list-grid { grid-template-columns: 1fr; }
 .metrics-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
 .metric-value { font-size: 24px; }
 .category-title-area h1 { font-size: 22px; }
 .category-desc { font-size: 14px; }
 .nav-brand-text { font-size: 26px; }
 .breadcrumb-row { font-size: 12px; }
}

/* roulang page: category1 */
:root {
  --bg-base: #0a0f1e;
  --bg-deep: #070b16;
  --bg-panel: #0d1425;
  --bg-panel-alt: #0f1b2d;
  --gold: #c9a978;
  --gold-light: #e5c99a;
  --gold-soft: rgba(201, 169, 120, 0.18);
  --gold-glow: rgba(201, 169, 120, 0.5);
  --pearl: #f5f2eb;
  --pearl-dim: #d9d6cf;
  --text-primary: #e8e4dc;
  --text-secondary: #b8b4aa;
  --text-muted: #8c887e;
  --line-dark: rgba(255, 255, 255, 0.08);
  --line-mid: rgba(255, 255, 255, 0.14);
  --line-gold: rgba(201, 169, 120, 0.32);
  --glass-bg: rgba(255, 255, 255, 0.055);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-hover: rgba(255, 255, 255, 0.22);
  --card-radius: 14px;
  --card-radius-sm: 10px;
  --card-radius-lg: 18px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
  --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
  --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  --section-gap: 56px;
  --section-gap-mobile: 40px;
  --container-max: 1200px;
  --nav-height: 96px;
  --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: thin;
  scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
}
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-base);
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(20, 35, 65, 0.6) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(10, 18, 34, 0.8) 0%, transparent 60%),
    linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), opacity var(--transition-fast);
}
a:hover {
  color: var(--gold-light);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
input,
textarea {
  background: none;
  border: none;
  outline: none;
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}
/* ========== HEADER / NAV ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line-dark);
  transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
}
.site-header.scrolled {
  background: rgba(10, 15, 30, 0.94);
  border-bottom-color: var(--line-gold);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height);
  height: var(--nav-height);
  gap: 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-brand-text {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--pearl);
  line-height: 1;
}
.nav-brand-sep {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, transparent, var(--line-gold), transparent);
}
.nav-brand-sub {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  text-transform: uppercase;
  line-height: 1.3;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links li {
  position: relative;
}
.nav-links a {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--gold-light);
}
.nav-links a.active {
  color: var(--gold-light);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  z-index: 110;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--gold-light);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
main {
  padding-top: var(--nav-height);
}
/* ========== PAGE HEAD ========== */
.page-head {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--line-gold);
  background: linear-gradient(180deg, rgba(15, 27, 45, 0.4) 0%, transparent 100%);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  list-style: none;
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.breadcrumb a:hover {
  color: var(--gold-light);
}
.breadcrumb .sep {
  color: var(--line-gold);
}
.breadcrumb span.current {
  color: var(--gold-light);
}
.page-head-content {
  max-width: 820px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold-light);
  border: 1px solid var(--line-gold);
  border-radius: 20px;
  padding: 4px 14px;
  margin-bottom: 16px;
  background: var(--gold-soft);
}
.page-head h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--pearl);
  margin-bottom: 16px;
}
.page-desc {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  max-width: 760px;
}
/* ========== TOPIC FILTER ========== */
.topic-filter {
  padding: 28px 0 12px;
}
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
}
.filter-tags li {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 6px 16px;
  transition: all var(--transition-fast);
  cursor: default;
}
.filter-tags li:hover {
  background: var(--glass-bg-hover);
  border-color: var(--gold);
  color: var(--gold-light);
}
/* ========== ARTICLE LIST ========== */
.article-list {
  padding: 24px 0 40px;
}
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.article-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-med), background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-4px);
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-card-hover);
}
.article-card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-panel-alt);
}
.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.article-card:hover .article-card-img img {
  transform: scale(1.04);
}
.article-card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.article-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-light);
  margin-bottom: 10px;
}
.article-card h2,
.article-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.article-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.article-meta .read-link {
  margin-left: auto;
  color: var(--gold-light);
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: color var(--transition-fast);
}
.article-meta .read-link:hover {
  color: var(--pearl);
}
.article-card.large {
  grid-column: span 2;
  flex-direction: row;
}
.article-card.large .article-card-img {
  width: 50%;
  aspect-ratio: auto;
  min-height: 300px;
}
.article-card.large .article-card-body {
  width: 50%;
  padding: 32px 32px 36px;
}
.article-card.large h2,
.article-card.large h3 {
  font-size: 26px;
  margin-bottom: 12px;
}
/* ========== FEATURED EDITORIAL ========== */
.featured-editorial {
  padding: 40px 0;
}
.featured-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  background: var(--glass-bg);
  border: 1px solid var(--line-gold);
  border-radius: var(--card-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.featured-media {
  position: relative;
  min-height: 360px;
  overflow: hidden;
}
.featured-media img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,15,30,0.1) 0%, rgba(10,15,30,0.7) 100%);
}
.featured-content {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.featured-label {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-light);
  background: var(--gold-soft);
  border: 1px solid var(--line-gold);
  border-radius: 20px;
  padding: 4px 14px;
  align-self: flex-start;
  margin-bottom: 16px;
}
.featured-content h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1.4;
  color: var(--pearl);
  margin-bottom: 16px;
}
.featured-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.btn-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: 30px;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  background: rgba(201, 169, 120, 0.12);
  border: 1px solid var(--line-gold);
  box-shadow: 0 0 18px rgba(201, 169, 120, 0.28);
  transition: all var(--transition-fast);
  align-self: flex-start;
}
.btn-glow:hover {
  background: rgba(201, 169, 120, 0.22);
  box-shadow: 0 0 28px rgba(201, 169, 120, 0.5);
  color: var(--pearl);
}
.btn-glow:active {
  transform: translateY(1px);
}
.btn-glow:focus-visible {
  outline: 1px solid var(--pearl-dim);
  outline-offset: 3px;
}
/* ========== DATA STRIP ========== */
.data-strip {
  padding: 40px 0;
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius-sm);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  text-align: center;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.stat-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--line-gold);
}
.stat-number {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--gold-light);
  text-shadow: 0 0 18px rgba(201, 169, 120, 0.5);
  margin-bottom: 8px;
}
.stat-label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}
/* ========== FAQ ========== */
.faq-section {
  padding: 40px 0;
}
.section-title {
  font-family: var(--font-serif);
  font-size: 26px;
  letter-spacing: 0.06em;
  color: var(--pearl);
  margin-bottom: 24px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.faq-item.active {
  border-color: var(--line-gold);
  background: var(--glass-bg-hover);
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: color var(--transition-fast);
}
.faq-question:hover {
  color: var(--gold-light);
}
.faq-icon {
  font-size: 20px;
  color: var(--gold-light);
  transition: transform var(--transition-fast);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-med);
}
.faq-item.active .faq-answer {
  max-height: 300px;
}
.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-secondary);
}
/* ========== CTA PANEL ========== */
.cta-panel {
  padding: 40px 0;
}
.cta-card {
  background: linear-gradient(135deg, rgba(15, 27, 45, 0.9) 0%, rgba(10, 15, 30, 0.9) 100%);
  border: 1px solid var(--line-gold);
  border-radius: var(--card-radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.cta-card h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--pearl);
  margin-bottom: 12px;
}
.cta-card p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-secondary);
}
.form-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.form-input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input::placeholder {
  color: var(--text-muted);
}
.form-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 169, 120, 0.15);
}
.form-btn {
  width: 100%;
  padding: 13px 24px;
  background: rgba(201, 169, 120, 0.16);
  color: var(--gold-light);
  border: 1px solid var(--line-gold);
  border-radius: 30px;
  font-size: 15px;
  letter-spacing: 0.1em;
  transition: all var(--transition-fast);
  box-shadow: 0 0 18px rgba(201, 169, 120, 0.3);
}
.form-btn:hover {
  background: rgba(201, 169, 120, 0.28);
  box-shadow: 0 0 28px rgba(201, 169, 120, 0.5);
  color: var(--pearl);
}
.form-btn:active {
  transform: translateY(1px);
}
.form-btn:focus-visible {
  outline: 1px solid var(--pearl-dim);
  outline-offset: 3px;
}
.form-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
  letter-spacing: 0.04em;
}
/* ========== RELATED LINKS ========== */
.related-links {
  padding: 40px 0 56px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 24px;
  list-style: none;
}
.related-grid li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.related-grid li a:hover {
  background: var(--glass-bg-hover);
  border-color: var(--line-gold);
  color: var(--gold-light);
}
.related-grid li a::before {
  content: '◆';
  font-size: 10px;
  color: var(--gold);
}
/* ========== FOOTER ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--line-gold);
  padding: 48px 0 24px;
  margin-top: 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--pearl);
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}
.footer-tagline {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 320px;
}
.footer-col h4 {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--gold-light);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line-dark);
}
.footer-legal {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-legal a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-legal a:hover {
  color: var(--gold-light);
}
/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .nav-links {
    gap: 20px;
  }
  .nav-brand-text {
    font-size: 32px;
  }
}
@media (max-width: 768px) {
  :root {
    --section-gap: 40px;
    --nav-height: 72px;
  }
  .container {
    padding: 0 20px;
  }
  .nav-inner {
    height: var(--nav-height);
    min-height: var(--nav-height);
  }
  .nav-brand-text {
    font-size: 28px;
  }
  .nav-brand-sub {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: rgba(10, 15, 30, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: 40px 32px;
    border-left: 1px solid var(--line-gold);
    transition: right var(--transition-med);
    z-index: 105;
  }
  .nav-links.open {
    right: 0;
  }
  .nav-links a {
    font-size: 16px;
    letter-spacing: 0.14em;
  }
  .page-head {
    padding: 32px 0 24px;
  }
  .page-head h1 {
    font-size: 30px;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-card.large {
    grid-column: span 1;
    flex-direction: column;
  }
  .article-card.large .article-card-img {
    width: 100%;
    min-height: 220px;
  }
  .article-card.large .article-card-body {
    width: 100%;
    padding: 22px 24px 24px;
  }
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-card {
    grid-template-columns: 1fr;
    padding: 28px 24px;
  }
  .featured-card {
    grid-template-columns: 1fr;
  }
  .featured-media {
    min-height: 220px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 520px) {
  :root {
    --section-gap: 32px;
  }
  .container {
    padding: 0 16px;
  }
  .nav-brand-text {
    font-size: 26px;
  }
  .page-head h1 {
    font-size: 26px;
  }
  .article-card-body {
    padding: 18px 18px 20px;
  }
  .article-card.large .article-card-body {
    padding: 18px 18px 20px;
  }
  .data-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category3 */
:root {
            --bg-base: #0a0f1e;
            --bg-deep: #070b16;
            --bg-panel: #0d1425;
            --bg-panel-alt: #0f1b2d;
            --gold: #c9a978;
            --gold-light: #e5c99a;
            --gold-soft: rgba(201, 169, 120, 0.18);
            --gold-glow: rgba(201, 169, 120, 0.5);
            --pearl: #f5f2eb;
            --pearl-dim: #d9d6cf;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8c887e;
            --line-dark: rgba(255, 255, 255, 0.08);
            --line-mid: rgba(255, 255, 255, 0.14);
            --line-gold: rgba(201, 169, 120, 0.32);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --glass-bg-hover: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.22);
            --card-radius: 14px;
            --card-radius-sm: 10px;
            --card-radius-lg: 18px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --section-gap: 64px;
            --section-gap-mobile: 40px;
            --container-max: 1200px;
            --nav-height: 96px;
            --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-base);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(20, 35, 65, 0.6) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(10, 18, 34, 0.8) 0%, transparent 60%),
                linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            background: none;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-dark);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.94);
            border-bottom-color: var(--line-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            height: var(--nav-height);
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-brand-text {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            font-family: var(--font-serif);
            line-height: 1;
            user-select: none;
        }

        .nav-brand-sub {
            font-size: 11px;
            letter-spacing: 0.18em;
            color: var(--text-muted);
            text-transform: uppercase;
            font-weight: 400;
            display: block;
            margin-top: 4px;
        }

        .nav-divider {
            width: 1px;
            height: 32px;
            background: var(--line-gold);
            margin: 0 8px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links li {
            display: flex;
            align-items: center;
        }

        .nav-links a {
            font-size: 13.5px;
            font-weight: 500;
            letter-spacing: 0.08em;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 1px solid transparent;
            transition: color var(--transition-fast), border-color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--gold-light);
            border-bottom-color: var(--line-gold);
        }

        .nav-links a.active {
            color: var(--gold-light);
            border-bottom-color: var(--gold-light);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: 1px solid var(--line-mid);
            border-radius: 8px;
            cursor: pointer;
            transition: border-color var(--transition-fast), background-color var(--transition-fast);
        }

        .nav-toggle:hover {
            border-color: var(--line-gold);
            background-color: var(--glass-bg);
        }

        .nav-toggle-line {
            width: 22px;
            height: 1.5px;
            background: var(--pearl);
            border-radius: 2px;
            transition: background var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            flex-wrap: wrap;
        }

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

        .breadcrumb-nav a:hover {
            color: var(--gold-light);
        }

        .breadcrumb-sep {
            color: var(--line-gold);
            font-size: 11px;
        }

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

        /* ========== CATEGORY HEADER ========== */
        .cat-header {
            padding: 40px 0 32px;
        }

        .cat-header-inner {
            max-width: 860px;
        }

        .cat-label {
            display: inline-block;
            font-size: 12px;
            letter-spacing: 0.22em;
            color: var(--gold);
            background: var(--gold-soft);
            border: 1px solid var(--line-gold);
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            font-weight: 500;
        }

        .cat-header h1 {
            font-size: 34px;
            font-weight: 800;
            color: var(--pearl);
            letter-spacing: 0.04em;
            font-family: var(--font-serif);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cat-header-desc {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 760px;
        }

        /* ========== SECTION SHARED ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .section-title-group {
            max-width: 660px;
        }

        .section-kicker {
            font-size: 12px;
            letter-spacing: 0.18em;
            color: var(--gold);
            font-weight: 600;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.02em;
            font-family: var(--font-serif);
            line-height: 1.35;
        }

        .section-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 10px;
            line-height: 1.8;
            max-width: 620px;
        }

        .section-link {
            font-size: 13.5px;
            color: var(--gold);
            letter-spacing: 0.06em;
            white-space: nowrap;
            border-bottom: 1px solid var(--line-gold);
            padding-bottom: 2px;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        .section-link:hover {
            color: var(--gold-light);
            border-bottom-color: var(--gold-light);
        }

        /* ========== GLASS CARD ========== */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
        }

        .glass-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* ========== DATA METRICS ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-sm);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            text-align: center;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .metric-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .metric-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--gold-light);
            letter-spacing: 0.02em;
            text-shadow: 0 0 18px var(--gold-glow);
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 12.5px;
            color: var(--text-muted);
            letter-spacing: 0.06em;
            font-weight: 500;
        }

        .metric-note {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 6px;
            opacity: 0.7;
        }

        /* ========== LIST CARDS ========== */
        .list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
        }

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

        .article-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            background-color: var(--bg-panel-alt);
            overflow: hidden;
            position: relative;
        }

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

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

        .article-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(7, 11, 22, 0.7) 100%);
            pointer-events: none;
        }

        .article-card-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card-tag {
            display: inline-block;
            font-size: 11.5px;
            letter-spacing: 0.12em;
            color: var(--gold);
            background: var(--gold-soft);
            border: 1px solid var(--line-gold);
            padding: 3px 12px;
            border-radius: 16px;
            margin-bottom: 12px;
            align-self: flex-start;
            font-weight: 500;
        }

        .article-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.02em;
            line-height: 1.45;
            margin-bottom: 10px;
            font-family: var(--font-serif);
        }

        .article-card-summary {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--line-dark);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        .article-card-meta .meta-date {
            color: var(--text-muted);
        }

        .article-card-meta .meta-read {
            color: var(--gold);
            display: flex;
            align-items: center;
            gap: 4px;
            font-weight: 500;
            transition: color var(--transition-fast);
        }

        .article-card:hover .meta-read {
            color: var(--gold-light);
        }

        /* ========== FEATURED ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }

        .featured-main {
            background: var(--glass-bg);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .featured-main:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .featured-main-img {
            width: 100%;
            aspect-ratio: 16/8;
            background-color: var(--bg-panel-alt);
            overflow: hidden;
            position: relative;
        }

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

        .featured-main:hover .featured-main-img img {
            transform: scale(1.03);
        }

        .featured-main-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 11, 22, 0.8) 100%);
            pointer-events: none;
        }

        .featured-main-body {
            padding: 24px 26px;
        }

        .featured-tag {
            display: inline-block;
            font-size: 11.5px;
            letter-spacing: 0.14em;
            color: var(--gold-light);
            background: rgba(201, 169, 120, 0.25);
            border: 1px solid var(--line-gold);
            padding: 4px 14px;
            border-radius: 18px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .featured-title {
            font-size: 21px;
            font-weight: 700;
            color: var(--pearl);
            font-family: var(--font-serif);
            letter-spacing: 0.02em;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .featured-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .featured-side-card {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .featured-side-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .featured-side-card h4 {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
            font-family: var(--font-serif);
            line-height: 1.4;
        }

        .featured-side-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .featured-side-card .side-meta {
            font-size: 11.5px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px solid var(--line-dark);
        }

        /* ========== TAGS ========== */
        .tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 13px;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
            cursor: default;
        }

        .tag-chip:hover {
            color: var(--gold-light);
            border-color: var(--line-gold);
            background: var(--glass-bg-hover);
        }

        .tag-chip .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
            opacity: 0.6;
        }

        /* ========== DATA CONTEXT ========== */
        .context-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .context-text {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .context-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .context-text strong {
            color: var(--pearl);
            font-weight: 600;
        }

        .context-image {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            min-height: 220px;
        }

        .context-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-sm);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: background var(--transition-med), border-color var(--transition-med);
        }

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--pearl);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

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

        .faq-item summary:hover {
            color: var(--gold-light);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border: 1px solid var(--line-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--gold);
            transition: transform var(--transition-fast), border-color var(--transition-fast);
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            border-color: var(--gold-light);
        }

        .faq-answer {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--line-dark);
            padding-top: 14px;
        }

        /* ========== CTA ========== */
        .cta-panel {
            background: linear-gradient(135deg, rgba(20, 35, 65, 0.7) 0%, rgba(13, 20, 37, 0.85) 50%, rgba(15, 27, 45, 0.9) 100%);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--line-gold);
            border-radius: var(--card-radius-lg);
            box-shadow: var(--shadow-card);
            padding: 44px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(201, 169, 120, 0.15) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-content {
            flex: 1;
            min-width: 280px;
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--pearl);
            font-family: var(--font-serif);
            letter-spacing: 0.02em;
            margin-bottom: 10px;
        }

        .cta-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 520px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.05em;
            white-space: nowrap;
            transition: all var(--transition-med);
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .btn-primary {
            background: linear-gradient(135deg, #1a2b48 0%, #0f1b2d 100%);
            color: var(--gold-light);
            border: 1px solid var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.45), 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(201, 169, 120, 0.65), 0 8px 24px rgba(0, 0, 0, 0.4);
            background: linear-gradient(135deg, #223554 0%, #14243a 100%);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 14px rgba(201, 169, 120, 0.35), 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--pearl-dim);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: transparent;
            color: var(--pearl);
            border: 1px solid var(--line-mid);
            box-shadow: 0 0 12px rgba(255, 255, 255, 0.12);
        }

        .btn-secondary:hover {
            border-color: var(--line-gold);
            box-shadow: 0 0 22px rgba(255, 255, 255, 0.2);
            background: var(--glass-bg);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--pearl-dim);
            outline-offset: 2px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--line-dark);
            padding: 48px 0 28px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.8fr 0.9fr 0.9fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 0.1em;
            color: var(--pearl);
            font-family: var(--font-serif);
            margin-bottom: 12px;
        }

        .footer-tagline {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 13.5px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

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

        .footer-col ul a {
            font-size: 13.5px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            letter-spacing: 0.03em;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--line-dark);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12.5px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--gold-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .context-panel {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
                --nav-height: 72px;
            }

            .container {
                padding: 0 20px;
            }

            .nav-inner {
                gap: 16px;
            }

            .nav-brand-text {
                font-size: 26px;
                letter-spacing: 0.08em;
            }

            .nav-brand-sub {
                font-size: 9px;
                letter-spacing: 0.12em;
            }

            .nav-divider {
                height: 24px;
                margin: 0 4px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 15, 30, 0.97);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--line-gold);
                box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
                z-index: 99;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li {
                width: 100%;
                border-bottom: 1px solid var(--line-dark);
            }

            .nav-links li:last-child {
                border-bottom: none;
            }

            .nav-links a {
                display: block;
                padding: 14px 0;
                font-size: 15px;
                letter-spacing: 0.06em;
                border-bottom: none;
            }

            .nav-links a.active {
                color: var(--gold-light);
                border-bottom: none;
            }

            .nav-toggle {
                display: flex;
            }

            .breadcrumb-section {
                padding-top: calc(var(--nav-height) + 28px);
            }

            .cat-header {
                padding: 28px 0 20px;
            }

            .cat-header h1 {
                font-size: 26px;
            }

            .cat-header-desc {
                font-size: 14px;
                line-height: 1.75;
            }

            .section-title {
                font-size: 20px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .metric-card {
                padding: 16px 12px;
            }

            .metric-value {
                font-size: 22px;
            }

            .metric-label {
                font-size: 11px;
            }

            .cta-panel {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }

            .cta-content {
                text-align: center;
            }

            .cta-desc {
                max-width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .footer-legal {
                gap: 10px;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 32px;
            }

            .container {
                padding: 0 16px;
            }

            .nav-brand-text {
                font-size: 22px;
            }

            .cat-header h1 {
                font-size: 22px;
            }

            .cat-label {
                font-size: 10.5px;
                padding: 4px 12px;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .list-grid {
                gap: 16px;
            }

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

            .article-card-title {
                font-size: 15.5px;
            }

            .featured-main-body {
                padding: 18px 18px;
            }

            .featured-title {
                font-size: 18px;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 13px;
                width: 100%;
            }

            .cta-title {
                font-size: 19px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-base: #0a0f1e;
            --bg-deep: #070b16;
            --bg-panel: #0d1425;
            --bg-panel-alt: #0f1b2d;
            --gold: #c9a978;
            --gold-light: #e5c99a;
            --gold-soft: rgba(201, 169, 120, 0.18);
            --gold-glow: rgba(201, 169, 120, 0.5);
            --pearl: #f5f2eb;
            --pearl-dim: #d9d6cf;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8c887e;
            --line-dark: rgba(255, 255, 255, 0.08);
            --line-mid: rgba(255, 255, 255, 0.14);
            --line-gold: rgba(201, 169, 120, 0.32);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --glass-bg-hover: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.22);
            --card-radius: 14px;
            --card-radius-sm: 10px;
            --card-radius-lg: 18px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
            --container-max: 1200px;
            --nav-height: 96px;
            --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-base);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(20, 35, 65, 0.6) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(10, 18, 34, 0.8) 0%, transparent 60%),
                linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            background: none;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-dark);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.94);
            border-bottom-color: var(--line-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            height: var(--nav-height);
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-brand-text {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            font-family: var(--font-serif);
            line-height: 1;
        }

        .nav-brand-sub {
            font-size: 10px;
            letter-spacing: 0.32em;
            color: var(--text-muted);
            text-transform: uppercase;
            line-height: 1;
            margin-top: 2px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 8px;
            border-radius: 8px;
            align-items: flex-end;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--pearl);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle span:nth-child(2) {
            width: 18px;
        }

        .nav-toggle span:nth-child(3) {
            width: 22px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 13.5px;
            letter-spacing: 0.08em;
            color: var(--text-secondary);
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--gold-light);
            background: var(--gold-soft);
        }

        .nav-links a.active {
            color: var(--gold-light);
            background: rgba(201, 169, 120, 0.08);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .nav-divider {
            width: 1px;
            height: 18px;
            background: var(--line-gold);
            margin: 0 8px;
            flex-shrink: 0;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 8px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: var(--line-gold);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--gold-light);
        }

        /* ========== CATEGORY HERO ========== */
        .category-hero {
            padding: 48px 0 36px;
            border-bottom: 1px solid var(--line-dark);
            margin-bottom: var(--section-gap);
            position: relative;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 120px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
        }

        .category-label {
            display: inline-block;
            font-size: 12px;
            letter-spacing: 0.22em;
            color: var(--gold);
            text-transform: uppercase;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .category-title {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: 0.06em;
            color: var(--pearl);
            font-family: var(--font-serif);
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .category-description {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 24px;
        }

        .category-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .category-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--gold);
        }

        /* ========== FEATURE STORY ========== */
        .feature-story {
            margin-bottom: var(--section-gap);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-image {
            border-radius: var(--card-radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
        }

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

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

        .feature-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(7, 11, 22, 0.6) 100%);
            pointer-events: none;
        }

        .feature-content {
            padding: 8px 0;
        }

        .feature-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--gold-soft);
            color: var(--gold-light);
            border: 1px solid var(--line-gold);
            border-radius: 20px;
            font-size: 12px;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
        }

        .feature-content h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--pearl);
            margin-bottom: 14px;
            font-family: var(--font-serif);
        }

        .feature-content p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--gold-light);
            font-weight: 600;
            letter-spacing: 0.04em;
            transition: gap var(--transition-fast), color var(--transition-fast);
        }

        .feature-link:hover {
            color: var(--pearl);
            gap: 12px;
        }

        /* ========== ARTICLE GRID ========== */
        .article-grid-section {
            margin-bottom: var(--section-gap);
        }

        .section-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--pearl);
            font-family: var(--font-serif);
            letter-spacing: 0.04em;
        }

        .section-header .see-all {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }

        .section-header .see-all:hover {
            color: var(--gold-light);
        }

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

        .article-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
        }

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

        .article-card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

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

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

        .article-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card-tag {
            font-size: 11px;
            letter-spacing: 0.12em;
            color: var(--gold);
            text-transform: uppercase;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .article-card-body h3 {
            font-size: 17px;
            font-weight: 650;
            line-height: 1.45;
            color: var(--text-primary);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

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

        .article-card-body p {
            font-size: 13.5px;
            line-height: 1.65;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 14px;
        }

        .article-card-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--line-dark);
            padding-top: 12px;
        }

        .article-card-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--line-gold);
        }

        /* ========== TOPIC TAGS ========== */
        .topic-tags-section {
            margin-bottom: var(--section-gap);
            background: var(--bg-panel);
            border: 1px solid var(--line-dark);
            border-radius: var(--card-radius-lg);
            padding: 32px 36px;
        }

        .topic-tags-section .section-header {
            margin-bottom: 20px;
        }

        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            display: inline-block;
            padding: 8px 18px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
            transition: all var(--transition-fast);
        }

        .topic-tag:hover {
            background: var(--gold-soft);
            border-color: var(--line-gold);
            color: var(--gold-light);
        }

        /* ========== DATA INSIGHT ========== */
        .data-insight-section {
            margin-bottom: var(--section-gap);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            padding: 26px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: all var(--transition-med);
        }

        .data-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--line-gold);
            box-shadow: var(--shadow-card-hover);
        }

        .data-number {
            font-size: 34px;
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--gold-light);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
            text-shadow: 0 0 16px rgba(201, 169, 120, 0.35);
        }

        .data-label {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin-bottom: var(--section-gap);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-sm);
            overflow: hidden;
            transition: all var(--transition-med);
        }

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

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 650;
            font-size: 15px;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line-mid);
            border-radius: 50%;
            font-size: 14px;
            color: var(--gold);
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--line-gold);
            background: var(--gold-soft);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med), padding var(--transition-med);
            padding: 0 24px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 24px 22px;
        }

        /* ========== CTA ========== */
        .cta-section {
            margin-bottom: var(--section-gap);
            background: var(--bg-panel-alt);
            border: 1px solid var(--line-gold);
            border-radius: var(--card-radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(201, 169, 120, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 12px;
            font-family: var(--font-serif);
            position: relative;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
            position: relative;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.06em;
            transition: all var(--transition-med);
            position: relative;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--bg-panel);
            color: var(--gold-light);
            border-color: var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.4);
        }

        .btn-primary:hover {
            box-shadow: 0 0 32px rgba(201, 169, 120, 0.6);
            background: var(--bg-panel-alt);
            color: var(--pearl);
            border-color: rgba(201, 169, 120, 0.55);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(201, 169, 120, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 255, 255, 0.8);
            outline-offset: 3px;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--line-mid);
        }

        .btn-ghost:hover {
            border-color: var(--gold);
            color: var(--gold-light);
            background: var(--gold-soft);
        }

        .btn-ghost:active {
            transform: translateY(0);
        }

        .btn-ghost:focus-visible {
            outline: 2px solid rgba(255, 255, 255, 0.8);
            outline-offset: 3px;
        }

        /* ========== SUBSCRIPTION FORM ========== */
        .subscribe-section {
            margin-bottom: var(--section-gap);
        }

        .subscribe-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--bg-panel);
            border: 1px solid var(--line-dark);
            border-radius: var(--card-radius-lg);
            padding: 32px 36px;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .subscribe-text h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 6px;
            font-family: var(--font-serif);
        }

        .subscribe-text p {
            font-size: 13.5px;
            color: var(--text-muted);
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 6px;
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-primary);
            min-width: 240px;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

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

        .subscribe-form input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 12px rgba(201, 169, 120, 0.25);
            outline: none;
        }

        .subscribe-form .btn {
            padding: 12px 24px;
            font-size: 14px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--line-dark);
            padding: 48px 0 32px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.1em;
            color: var(--pearl);
            font-family: var(--font-serif);
            margin-bottom: 10px;
        }

        .footer-tagline {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 13px;
            letter-spacing: 0.12em;
            color: var(--gold);
            margin-bottom: 14px;
            font-weight: 600;
            text-transform: uppercase;
        }

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

        .footer-col a {
            font-size: 13.5px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid var(--line-dark);
            padding-top: 24px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--gold-light);
        }

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

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

            .feature-story {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
                --nav-height: 72px;
            }

            .container {
                padding: 0 20px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 15, 30, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 28px 28px;
                gap: 4px;
                border-bottom: 1px solid var(--line-dark);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                transform: translateY(-100%);
                transition: transform var(--transition-med);
                visibility: hidden;
                pointer-events: none;
                max-height: 70vh;
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateY(0);
                visibility: visible;
                pointer-events: auto;
            }

            .nav-links a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                letter-spacing: 0.04em;
            }

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

            .nav-divider {
                display: none;
            }

            .nav-brand-text {
                font-size: 28px;
                letter-spacing: 0.08em;
            }

            .category-title {
                font-size: 30px;
            }

            .category-description {
                font-size: 15px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .data-number {
                font-size: 26px;
            }

            .section-header h2 {
                font-size: 19px;
            }

            .feature-content h2 {
                font-size: 22px;
            }

            .cta-section {
                padding: 36px 24px;
            }

            .cta-section h2 {
                font-size: 21px;
            }

            .subscribe-inner {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height) + 20px);
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 40px;
            }

            .container {
                padding: 0 16px;
            }

            .category-title {
                font-size: 26px;
                letter-spacing: 0.04em;
            }

            .category-hero {
                padding: 32px 0 24px;
                margin-bottom: var(--section-gap);
            }

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

            .topic-tags-section {
                padding: 24px 20px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }

            .faq-answer {
                padding: 0 18px;
                font-size: 13.5px;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 18px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }

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

            .feature-story {
                gap: 20px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-base: #0a0f1e;
            --bg-deep: #070b16;
            --bg-panel: #0d1425;
            --bg-panel-alt: #0f1b2d;
            --gold: #c9a978;
            --gold-light: #e5c99a;
            --gold-soft: rgba(201, 169, 120, 0.18);
            --gold-glow: rgba(201, 169, 120, 0.5);
            --pearl: #f5f2eb;
            --pearl-dim: #d9d6cf;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8c887e;
            --line-dark: rgba(255, 255, 255, 0.08);
            --line-mid: rgba(255, 255, 255, 0.14);
            --line-gold: rgba(201, 169, 120, 0.32);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --glass-bg-hover: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.22);
            --card-radius: 14px;
            --card-radius-sm: 10px;
            --card-radius-lg: 18px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --section-gap: 72px;
            --section-gap-mobile: 44px;
            --container-max: 1200px;
            --nav-height: 96px;
            --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 169, 120, 0.35) transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-base);
            background-image:
                radial-gradient(ellipse at 15% 8%, rgba(18, 32, 58, 0.65) 0%, transparent 55%),
                radial-gradient(ellipse at 82% 0%, rgba(13, 26, 46, 0.75) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 82%, rgba(8, 16, 32, 0.85) 0%, transparent 60%),
                linear-gradient(180deg, #0a0f1e 0%, #0d1425 28%, #070b16 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            background: none;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-dark);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.94);
            border-bottom-color: var(--line-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            height: var(--nav-height);
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--glass-bg);
            border: 1px solid var(--line-gold);
            color: var(--gold-light);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-brand-text {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            line-height: 1.15;
        }

        .nav-brand-sub {
            font-size: 10px;
            letter-spacing: 0.28em;
            color: var(--text-muted);
            text-transform: uppercase;
            margin-top: 2px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            flex-shrink: 0;
        }

        .nav-links li {
            display: flex;
            align-items: center;
            gap: 22px;
        }

        .nav-links a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }

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

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

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

        .nav-links a.active::after {
            width: 100%;
            background: var(--gold-light);
        }

        .nav-divider {
            width: 1px;
            height: 18px;
            background: var(--line-gold);
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--pearl);
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

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

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

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

        /* ========== BREADCRUMB ========== */
        .breadcrumb-area {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 12px 0;
            border-bottom: 1px solid var(--line-dark);
        }

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

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

        .breadcrumb .separator {
            color: var(--line-mid);
            font-weight: 300;
        }

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

        /* ========== CATEGORY HEADER ========== */
        .category-header {
            padding: 40px 0 28px;
            text-align: left;
        }

        .category-header .kicker {
            display: inline-block;
            font-size: 12px;
            letter-spacing: 0.32em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 14px;
            border: 1px solid var(--line-gold);
            padding: 6px 16px;
            border-radius: 20px;
            background: var(--gold-soft);
        }

        .category-header h1 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: 0.06em;
            color: var(--pearl);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .category-header .cat-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.85;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 36px 0;
        }

        .section + .section {
            border-top: 1px solid var(--line-dark);
        }

        .section-title-group {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-title-group h2 {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--pearl);
            line-height: 1.35;
        }

        .section-title-group .section-sub {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 460px;
            text-align: right;
            line-height: 1.6;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gold);
            font-weight: 500;
            letter-spacing: 0.06em;
            transition: color var(--transition-fast), gap var(--transition-fast);
        }

        .section-more:hover {
            color: var(--gold-light);
            gap: 12px;
        }

        .section-more .arrow {
            font-size: 16px;
            line-height: 1;
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            overflow: hidden;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
            display: flex;
            flex-direction: column;
        }

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

        .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.15) 0%, rgba(10, 15, 30, 0.35) 60%, rgba(10, 15, 30, 0.7) 100%);
            pointer-events: none;
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            font-size: 11px;
            letter-spacing: 0.14em;
            color: var(--gold-light);
            background: rgba(10, 15, 30, 0.72);
            border: 1px solid var(--line-gold);
            padding: 4px 12px;
            border-radius: 14px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--pearl);
            line-height: 1.45;
            letter-spacing: 0.02em;
        }

        .card-excerpt {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            padding-top: 12px;
            border-top: 1px solid var(--line-dark);
        }

        .card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--gold);
            flex-shrink: 0;
        }

        /* ========== FEATURED ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 22px;
        }

        .featured-main {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
            display: flex;
            flex-direction: column;
        }

        .featured-main:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .featured-main .featured-image {
            position: relative;
            aspect-ratio: 21 / 9;
            overflow: hidden;
        }

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

        .featured-main:hover .featured-image img {
            transform: scale(1.03);
        }

        .featured-main .featured-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.1) 0%, rgba(10, 15, 30, 0.5) 70%, rgba(10, 15, 30, 0.78) 100%);
            pointer-events: none;
        }

        .featured-main .featured-body {
            padding: 24px 28px 28px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .featured-main .featured-label {
            font-size: 11px;
            letter-spacing: 0.22em;
            text-transform: uppercase;
            color: var(--gold);
            font-weight: 600;
        }

        .featured-main .featured-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--pearl);
            line-height: 1.4;
            letter-spacing: 0.03em;
        }

        .featured-main .featured-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .featured-mini {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
        }

        .featured-mini:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .featured-mini .mini-thumb {
            width: 72px;
            height: 72px;
            border-radius: var(--card-radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .featured-mini .mini-body {
            flex: 1;
            min-width: 0;
        }

        .featured-mini .mini-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--pearl);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .featured-mini .mini-meta {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        /* ========== TAG FILTER ========== */
        .tag-filter {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-filter .tag-label {
            font-size: 12px;
            letter-spacing: 0.16em;
            color: var(--text-muted);
            margin-right: 6px;
        }

        .tag-filter .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12.5px;
            color: var(--text-secondary);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 6px 16px;
            letter-spacing: 0.04em;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .tag-filter .tag:hover {
            color: var(--gold-light);
            border-color: var(--line-gold);
            background: var(--gold-soft);
        }

        /* ========== TIMELINE ========== */
        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 4px;
            bottom: 4px;
            width: 1px;
            background: var(--line-gold);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 24px;
            padding-left: 16px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 6px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 10px var(--gold-glow);
        }

        .timeline-item .timeline-year {
            font-size: 15px;
            font-weight: 700;
            color: var(--gold-light);
            letter-spacing: 0.08em;
            margin-bottom: 4px;
            font-family: var(--font-mono);
        }

        .timeline-item .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--pearl);
            margin-bottom: 4px;
        }

        .timeline-item .timeline-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius-sm);
            overflow: hidden;
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
        }

        .faq-question h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--pearl);
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        .faq-toggle {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 18px;
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med);
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
        }

        .faq-answer p {
            padding: 0 20px 18px;
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line-gold);
            border-radius: var(--card-radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
        }

        .cta-panel .cta-text {
            flex: 1;
            min-width: 240px;
        }

        .cta-panel .cta-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .cta-panel .cta-text p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 520px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 12px 28px;
            border-radius: 30px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
        }

        .btn:focus-visible {
            outline: 1px solid var(--pearl);
            outline-offset: 2px;
        }

        .btn-primary {
            background: rgba(201, 169, 120, 0.16);
            color: var(--gold-light);
            border: 1px solid var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.35), 0 0 0 1px rgba(201, 169, 120, 0.1) inset;
        }

        .btn-primary:hover {
            background: rgba(201, 169, 120, 0.28);
            box-shadow: 0 0 28px rgba(201, 169, 120, 0.55), 0 0 0 1px rgba(201, 169, 120, 0.2) inset;
            color: #fff5e8;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 12px rgba(201, 169, 120, 0.3);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--pearl-dim);
            border: 1px solid var(--glass-border);
        }

        .btn-secondary:hover {
            border-color: var(--glass-border-hover);
            background: rgba(255, 255, 255, 0.09);
            color: var(--pearl);
            box-shadow: 0 0 18px rgba(255, 255, 255, 0.15);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--line-gold);
            padding: 48px 0 32px;
            margin-top: 48px;
        }

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

        .footer-brand {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            margin-bottom: 10px;
        }

        .footer-tagline {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--gold);
            margin-bottom: 14px;
            text-transform: uppercase;
        }

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

        .footer-col a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 22px;
            border-top: 1px solid var(--line-dark);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--gold-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 56px;
                --nav-height: 80px;
            }
            .container {
                padding: 0 24px;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 44px;
                --nav-height: 70px;
            }
            .container {
                padding: 0 18px;
            }
            .nav-inner {
                gap: 16px;
            }
            .nav-brand-text {
                font-size: 28px;
                letter-spacing: 0.1em;
            }
            .nav-brand-sub {
                font-size: 9px;
                letter-spacing: 0.2em;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: 280px;
                background: rgba(10, 15, 30, 0.96);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 100px 32px 40px;
                gap: 0;
                border-left: 1px solid var(--line-gold);
                transform: translateX(100%);
                transition: transform var(--transition-med);
                z-index: 105;
            }
            .nav-links.open {
                transform: translateX(0);
            }
            .nav-links li {
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                width: 100%;
                padding: 14px 0;
                border-bottom: 1px solid var(--line-dark);
            }
            .nav-links a {
                font-size: 16px;
                letter-spacing: 0.1em;
                color: var(--text-primary);
                width: 100%;
                display: block;
            }
            .nav-divider {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .category-header .cat-desc {
                font-size: 14px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .section-title-group {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section-title-group .section-sub {
                text-align: left;
                max-width: none;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .breadcrumb-area {
                padding-top: calc(var(--nav-height) + 20px);
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 36px;
                --nav-height: 62px;
            }
            .container {
                padding: 0 14px;
            }
            .nav-brand-text {
                font-size: 24px;
                letter-spacing: 0.08em;
            }
            .nav-brand-sub {
                display: none;
            }
            .category-header h1 {
                font-size: 22px;
                letter-spacing: 0.04em;
            }
            .category-header .kicker {
                font-size: 11px;
                letter-spacing: 0.24em;
                padding: 4px 12px;
            }
            .featured-main .featured-title {
                font-size: 19px;
            }
            .featured-mini {
                flex-direction: column;
                align-items: flex-start;
            }
            .featured-mini .mini-thumb {
                width: 100%;
                height: 160px;
                aspect-ratio: 16 / 7;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 13px;
            }
            .footer-legal {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-base: #0a0f1e;
            --bg-deep: #070b16;
            --bg-panel: #0d1425;
            --bg-panel-alt: #0f1b2d;
            --gold: #c9a978;
            --gold-light: #e5c99a;
            --gold-soft: rgba(201, 169, 120, 0.18);
            --gold-glow: rgba(201, 169, 120, 0.5);
            --pearl: #f5f2eb;
            --pearl-dim: #d9d6cf;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8c887e;
            --line-dark: rgba(255, 255, 255, 0.08);
            --line-mid: rgba(255, 255, 255, 0.14);
            --line-gold: rgba(201, 169, 120, 0.32);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --glass-bg-hover: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(255, 255, 255, 0.22);
            --card-radius: 14px;
            --card-radius-sm: 10px;
            --card-radius-lg: 18px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 1px rgba(255, 255, 255, 0.06) inset;
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.1) inset;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-serif: 'Songti SC', 'SimSun', 'Noto Serif SC', 'Hiragino Mincho ProN', serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
            --container-max: 1200px;
            --nav-height: 96px;
            --transition-fast: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-med: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.48s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 169, 120, 0.4) transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-base);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(20, 35, 65, 0.6) 0%, transparent 55%), radial-gradient(ellipse at 80% 0%, rgba(15, 28, 50, 0.7) 0%, transparent 50%), radial-gradient(ellipse at 50% 80%, rgba(10, 18, 34, 0.8) 0%, transparent 60%), linear-gradient(180deg, #0a0f1e 0%, #0d1425 30%, #070b16 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            background: none;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* HEADER / NAV */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line-dark);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.94);
            border-bottom-color: var(--line-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            height: var(--nav-height);
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-brand-text {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.12em;
            color: var(--pearl);
            font-family: var(--font-serif);
            line-height: 1;
        }

        .nav-brand-sub {
            font-size: 10px;
            letter-spacing: 0.22em;
            color: var(--gold);
            text-transform: uppercase;
            font-family: var(--font-mono);
            border-left: 1px solid var(--line-gold);
            padding-left: 14px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--text-secondary);
            position: relative;
            border-radius: 6px;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--gold-light);
            background: rgba(201, 169, 120, 0.08);
        }

        .nav-links a.active {
            color: var(--gold-light);
            background: rgba(201, 169, 120, 0.12);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line-dark);
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--line-gold);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        /* MAIN */
        main {
            padding-top: var(--nav-height);
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-alt {
            background: rgba(13, 20, 37, 0.35);
            border-top: 1px solid var(--line-dark);
            border-bottom: 1px solid var(--line-dark);
        }

        /* BREADCRUMB */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 24px 0 0;
            flex-wrap: wrap;
            list-style: none;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li+li::before {
            content: '/';
            color: var(--line-gold);
            font-size: 12px;
        }

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

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

        .breadcrumb .current {
            color: var(--gold-light);
        }

        /* CATEGORY HEADER */
        .category-header {
            padding: 32px 0 40px;
            border-bottom: 1px solid var(--line-dark);
            margin-bottom: 48px;
        }

        .category-header h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: 0.06em;
            color: var(--pearl);
            font-family: var(--font-serif);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.85;
        }

        .category-header .category-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .category-header .category-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 20px;
            border: 1px solid var(--line-dark);
        }

        /* GENERIC CARD */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
        }

        .glass-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* BUTTONS */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.05em;
            border-radius: 8px;
            transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .btn:focus {
            outline: 1px solid rgba(255, 255, 255, 0.7);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background: rgba(13, 20, 37, 0.8);
            color: var(--gold-light);
            border-color: var(--line-gold);
            box-shadow: 0 0 18px rgba(201, 169, 120, 0.35);
        }

        .btn-primary:hover {
            background: rgba(20, 30, 50, 0.9);
            border-color: var(--gold);
            box-shadow: 0 0 28px rgba(201, 169, 120, 0.5);
            color: var(--gold-light);
        }

        .btn-secondary {
            background: transparent;
            color: var(--pearl);
            border-color: var(--line-mid);
            box-shadow: 0 0 12px rgba(255, 255, 255, 0.12);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.3);
            box-shadow: 0 0 22px rgba(255, 255, 255, 0.22);
            color: var(--gold-light);
        }

        /* SECTION TITLES */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--pearl);
            font-family: var(--font-serif);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            letter-spacing: 0.18em;
            color: var(--gold);
            text-transform: uppercase;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .section-eyebrow::before {
            content: '';
            width: 24px;
            height: 1px;
            background: var(--gold);
        }

        /* TIMELINE */
        .timeline {
            position: relative;
            padding-left: 24px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 1px;
            background: linear-gradient(180deg, var(--line-gold) 0%, var(--line-dark) 100%);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 36px;
            padding-left: 28px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 6px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 10px var(--gold-glow);
        }

        .timeline-item .timeline-date {
            font-size: 13px;
            font-family: var(--font-mono);
            color: var(--gold);
            letter-spacing: 0.06em;
            margin-bottom: 6px;
        }

        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 6px;
            font-family: var(--font-serif);
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ARTICLE GRID */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
        }

        .article-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .article-card .article-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.03);
        }

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

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

        .article-card .article-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .article-tag {
            font-size: 12px;
            color: var(--gold);
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }

        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 10px;
            line-height: 1.45;
            font-family: var(--font-serif);
        }

        .article-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .article-card .article-link {
            font-size: 13px;
            color: var(--gold-light);
            font-weight: 600;
            letter-spacing: 0.04em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }

        .article-card .article-link:hover {
            gap: 10px;
        }

        /* FEATURED ARTICLE */
        .featured-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            overflow: hidden;
        }

        .featured-article .featured-img {
            aspect-ratio: 16/12;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.03);
        }

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

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

        .featured-article .featured-body {
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-article .featured-tag {
            font-size: 12px;
            color: var(--gold);
            letter-spacing: 0.12em;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .featured-article h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 14px;
            line-height: 1.4;
            font-family: var(--font-serif);
        }

        .featured-article p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        /* TAGS */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line-dark);
            border-radius: 24px;
            cursor: pointer;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .tag-cloud .tag:hover {
            background: rgba(201, 169, 120, 0.08);
            border-color: var(--line-gold);
            color: var(--gold-light);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--line-dark);
            padding: 24px 0;
            transition: border-color var(--transition-fast);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

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

        .faq-question {
            font-size: 16px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 10px;
            font-family: var(--font-serif);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-question::before {
            content: 'Q';
            font-size: 13px;
            font-weight: 700;
            color: var(--gold);
            font-family: var(--font-mono);
            letter-spacing: 0.06em;
        }

        .faq-answer {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            padding-left: 28px;
            position: relative;
        }

        .faq-answer::before {
            content: 'A';
            position: absolute;
            left: 0;
            top: 0;
            font-size: 13px;
            font-weight: 700;
            color: var(--gold);
            font-family: var(--font-mono);
            letter-spacing: 0.06em;
        }

        /* DATA STRIP */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }

        .data-stat {
            padding: 24px 20px;
            text-align: center;
        }

        .data-stat .stat-value {
            font-size: 32px;
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--gold-light);
            letter-spacing: 0.03em;
            margin-bottom: 6px;
            text-shadow: 0 0 18px rgba(201, 169, 120, 0.4);
        }

        .data-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.08em;
        }

        /* CTA FORM */
        .cta-form-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            padding: 36px 40px;
        }

        .cta-form-wrap .cta-info h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--pearl);
            margin-bottom: 12px;
            font-family: var(--font-serif);
        }

        .cta-form-wrap .cta-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

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

        .cta-form input[type="email"],
        .cta-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            font-size: 14px;
            color: var(--pearl);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line-dark);
            border-radius: 8px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .cta-form input:focus {
            border-color: var(--line-gold);
            box-shadow: 0 0 12px rgba(201, 169, 120, 0.25);
        }

        .cta-form .btn {
            flex-shrink: 0;
        }

        /* FOOTER */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--line-dark);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 0.1em;
            color: var(--pearl);
            font-family: var(--font-serif);
            margin-bottom: 12px;
        }

        .footer-tagline {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--pearl);
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

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

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--line-dark);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .footer-legal a:hover {
            color: var(--gold-light);
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 56px;
                --nav-height: 72px;
            }

            .nav-brand-text {
                font-size: 28px;
            }

            .nav-links a {
                font-size: 12px;
                padding: 6px 10px;
            }

            .category-header h1 {
                font-size: 32px;
            }

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

            .cta-form-wrap {
                grid-template-columns: 1fr;
                padding: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
            }

            .container {
                padding: 0 20px;
            }

            .nav-inner {
                flex-wrap: wrap;
                gap: 12px;
                padding: 10px 0;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
                width: 100%;
                padding: 12px 0;
                background: rgba(10, 15, 30, 0.95);
                border-radius: 8px;
                border: 1px solid var(--line-dark);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-brand-text {
                font-size: 24px;
            }

            .category-header h1 {
                font-size: 26px;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .cta-form {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-brand-text {
                font-size: 20px;
            }

            .nav-brand-sub {
                font-size: 9px;
                padding-left: 8px;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .data-strip {
                grid-template-columns: 1fr;
            }

            .btn {
                padding: 10px 20px;
                font-size: 13px;
            }
        }

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