/* roulang page: index */
:root {
            --bg-deep: #1a1d24;
            --bg-surface: #21252f;
            --bg-card: #282d39;
            --bg-card-hover: #2e3341;
            --bg-muted: #1e2230;
            --text-primary: #e8e4dc;
            --text-secondary: #b8b4aa;
            --text-muted: #8a867c;
            --text-inverse: #1a1d24;
            --accent-gold: #c9a96e;
            --accent-gold-light: #d9be8a;
            --accent-gold-dark: #b0894f;
            --accent-warm: #c47f5a;
            --accent-cool: #7a9eb1;
            --border-subtle: #363b48;
            --border-medium: #4a4f5c;
            --border-accent: #c9a96e55;
            --border-double: #4a4f5c;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 16px rgba(201,169,110,0.15);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.45s ease;
        }

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

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(201,169,110,0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(122,158,177,0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 70%, rgba(196,127,90,0.03) 0%, transparent 50%);
            background-attachment: fixed;
        }

        a {
            color: var(--accent-gold-light);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

        button, .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            background: none;
            font-size: inherit;
        }

        input, textarea {
            font-family: var(--font-body);
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1320px;
            }
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(26,29,36,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(26,29,36,0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-medium);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: var(--spacing-lg);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-gold-light);
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .logo-link:hover {
            color: var(--accent-gold);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
            border: 1.5px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            text-decoration: none;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--accent-gold-light);
            background: rgba(201,169,110,0.07);
        }
        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(201,169,110,0.12);
            font-weight: 600;
        }
        .nav-link .nav-arrow {
            font-size: 0.65rem;
            transition: transform var(--transition-fast);
            opacity: 0.7;
        }
        .nav-item:hover .nav-link .nav-arrow {
            transform: rotate(180deg);
            opacity: 1;
        }

        /* Mega Menu */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: var(--bg-surface);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-lg);
            min-width: 420px;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-base);
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .nav-item:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(4px);
        }
        .mega-col h4 {
            font-family: var(--font-display);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid var(--border-accent);
        }
        .mega-col ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mega-col ul li a {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .mega-col ul li a:hover {
            color: var(--accent-gold-light);
            background: rgba(201,169,110,0.08);
        }
        .mega-card {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            border: 1px solid var(--border-subtle);
        }
        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-xs);
            object-fit: cover;
            flex-shrink: 0;
        }
        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mega-card-info span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .mega-card-info strong {
            font-size: 0.9rem;
            color: var(--text-primary);
            font-weight: 500;
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text-secondary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px,5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px,-5px);
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(26,29,36,0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 998;
            padding: var(--spacing-lg) var(--spacing-md);
            flex-direction: column;
            gap: var(--spacing-sm);
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel .nav-link {
            font-size: 1.1rem;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
        }
        .mobile-nav-panel .mobile-mega {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            border-top: 1px solid var(--border-subtle);
            margin-top: var(--spacing-sm);
            padding-top: var(--spacing-md);
        }
        .mobile-nav-panel .mobile-mega h4 {
            font-family: var(--font-display);
            font-size: 0.8rem;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
            padding: 0 18px;
        }
        .mobile-nav-panel .mobile-mega a {
            display: block;
            padding: 10px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition-fast);
        }
        .mobile-nav-panel .mobile-mega a:hover {
            color: var(--accent-gold-light);
            background: rgba(201,169,110,0.08);
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--bg-muted);
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            filter: brightness(0.7) saturate(0.75);
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                rgba(26,29,36,0.5) 0%,
                rgba(26,29,36,0.75) 40%,
                rgba(26,29,36,0.9) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 50px;
            border: 1.5px solid var(--accent-gold);
            background: rgba(201,169,110,0.1);
            color: var(--accent-gold-light);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-lg);
            font-family: var(--font-display);
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(2.4rem, 5.5vw, 3.8rem);
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.02em;
            max-width: 800px;
        }
        .hero-title .gold {
            color: var(--accent-gold-light);
        }
        .hero-subtitle {
            font-family: var(--font-display);
            font-size: clamp(1.05rem, 2vw, 1.3rem);
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 600px;
            line-height: 1.6;
            font-weight: 400;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold-dark) 0%, var(--accent-gold) 60%, var(--accent-gold-light) 100%);
            color: #1a1a1a;
            box-shadow: var(--shadow-gold);
            border: 1.5px solid transparent;
        }
        .btn-primary:hover {
            box-shadow: 0 8px 28px rgba(201,169,110,0.3);
            transform: translateY(-2px);
            color: #111;
        }
        .btn-outline {
            border: 1.8px solid var(--accent-gold);
            color: var(--accent-gold-light);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(201,169,110,0.1);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 50px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-label {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-gold);
            border: 1.5px solid var(--accent-gold);
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: var(--spacing-md);
            background: rgba(201,169,110,0.06);
        }
        .section-title {
            font-family: var(--font-display);
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: var(--spacing-lg);
        }
        .feature-card {
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto var(--spacing-md);
            background: rgba(201,169,110,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold-light);
            border: 1.5px solid var(--border-accent);
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-icon {
            background: rgba(201,169,110,0.18);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }
        .feature-card h3 {
            font-family: var(--font-display);
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========== CATEGORY CARDS ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2,1fr);
            gap: var(--spacing-lg);
        }
        .category-card {
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            text-decoration: none;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .category-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1.5px solid var(--border-subtle);
        }
        .category-card-body {
            padding: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            flex: 1;
        }
        .category-card-body h3 {
            font-family: var(--font-display);
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .category-card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
            flex: 1;
        }
        .category-card-body .cta-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-gold-light);
            transition: gap var(--transition-fast);
        }
        .category-card:hover .cta-link {
            gap: 10px;
            color: var(--accent-gold);
        }

        /* ========== LOG CARD LIST (CMS) ========== */
        .log-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .log-card {
            display: flex;
            gap: var(--spacing-md);
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            text-decoration: none;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .log-card::after {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            bottom: 16px;
            width: 3px;
            border-radius: 0 3px 3px 0;
            background: var(--accent-gold);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .log-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .log-card:hover::after {
            opacity: 1;
        }
        .log-card-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            border: 1px solid var(--border-subtle);
        }
        .log-card-content {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }
        .log-card-meta {
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
            flex-wrap: wrap;
        }
        .log-card-cat {
            font-size: 0.75rem;
            color: var(--accent-gold-light);
            background: rgba(201,169,110,0.1);
            border: 1px solid var(--border-accent);
            padding: 3px 10px;
            border-radius: 50px;
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .log-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        .log-card-content h3 {
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .log-card-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-msg {
            text-align: center;
            padding: var(--spacing-xl);
            color: var(--text-muted);
            font-family: var(--font-display);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1.5px dashed var(--border-subtle);
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: var(--spacing-md);
        }
        .stat-card {
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-family: var(--font-display);
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent-gold-light);
            line-height: 1;
            margin-bottom: var(--spacing-xs);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* ========== PROCESS ========== */
        .process-list {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: var(--spacing-lg);
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding-top: 60px;
        }
        .process-step-num {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-gold-light);
            z-index: 2;
            transition: all var(--transition-base);
        }
        .process-step:hover .process-step-num {
            background: rgba(201,169,110,0.2);
            box-shadow: var(--shadow-gold);
        }
        .process-step h4 {
            font-family: var(--font-display);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            cursor: pointer;
            font-family: var(--font-display);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            text-align: left;
            gap: var(--spacing-md);
            transition: color var(--transition-fast);
        }
        .faq-q:hover {
            color: var(--accent-gold-light);
        }
        .faq-q i {
            font-size: 0.8rem;
            color: var(--accent-gold);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 var(--spacing-lg);
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            border-top: 1px solid transparent;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: var(--spacing-md) var(--spacing-lg);
            border-top-color: var(--border-subtle);
        }

        /* ========== CTA ========== */
        .cta-section {
            text-align: center;
            background: var(--bg-surface);
            border: 1.5px solid var(--border-medium);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl) var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(201,169,110,0.06) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section > * {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-display);
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            margin: 0 6px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1.5px solid var(--border-medium);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .footer-brand .logo-link {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
            display: inline-flex;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            max-width: 340px;
        }
        .footer-col h4 {
            font-family: var(--font-display);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
            margin-bottom: var(--spacing-md);
            text-transform: uppercase;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold-light);
            transform: translateX(3px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: var(--spacing-lg);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent-gold-light);
        }

        /* ========== DECORATIVE ========== */
        .ornament-divider {
            text-align: center;
            padding: var(--spacing-sm) 0;
            color: var(--accent-gold);
            opacity: 0.5;
            font-size: 1.2rem;
            letter-spacing: 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2,1fr);
            }
            .process-list {
                grid-template-columns: repeat(2,1fr);
                gap: var(--spacing-xl);
            }
            .stats-grid {
                grid-template-columns: repeat(2,1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1/-1;
            }
            .mega-panel {
                min-width: 340px;
            }
        }
        @media (max-width: 768px) {
            .main-nav .nav-list {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero {
                min-height: 450px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .category-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
            .log-card {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .log-card-thumb {
                width: 100%;
                height: 160px;
            }
            .stats-grid {
                grid-template-columns: repeat(2,1fr);
            }
            .process-list {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: var(--spacing-xl) var(--spacing-md);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
        }
        @media (max-width: 520px) {
            :root {
                --nav-height: 58px;
            }
            .header-inner {
                gap: var(--spacing-sm);
            }
            .logo-link {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .hero {
                min-height: 380px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .process-list {
                grid-template-columns: 1fr;
            }
            .category-card-img {
                height: 150px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 var(--spacing-sm);
            }
            .mega-panel {
                min-width: auto;
                left: 0;
                right: 0;
                transform: none;
                border-radius: 0;
            }
            .nav-item:hover .mega-panel {
                transform: none;
            }
        }

/* roulang page: category1 */
/* 设计变量 - 复古手作感低饱和暗底 */
        :root {
            --bg: #1e1b18;
            --bg-alt: #261f1a;
            --surface: #2c241e;
            --surface-light: #3d342b;
            --text: #e6ddce;
            --text-muted: #b3a68b;
            --text-dim: #8c816e;
            --accent: #d4a853;
            --accent-hover: #e6c069;
            --accent-soft: #c59b5f;
            --border: #4a4032;
            --border-light: #5f5240;
            --shadow-sm: 0 2px 6px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.45);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.55);
            --radius-sm: 3px;
            --radius: 6px;
            --radius-lg: 10px;
            --font-heading: 'Georgia', 'Times New Roman', 'Songti SC', serif;
            --font-body: 'Georgia', 'Times New Roman', 'Source Han Serif SC', serif;
            --transition: 0.25s ease;
        }
        
        /* Reset */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        
        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), background var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        
        ul {
            list-style: none;
        }
        
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* Header & Navigation - Mega Menu 复古暗底 */
        .site-header {
            background: linear-gradient(180deg, #2a221c 0%, #231d17 100%);
            border-bottom: 2px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 2px;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--accent);
        }
        .logo-icon i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .main-nav .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 1rem;
            font-weight: 500;
            padding: 10px 0;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .nav-arrow {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }
        .nav-item:hover .nav-arrow {
            transform: rotate(180deg);
        }
        
        /* Mega Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 640px;
            background: var(--surface);
            border: 2px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            display: flex;
            gap: 32px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
            z-index: 999;
        }
        .nav-item:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-col h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px dashed var(--border-light);
        }
        .mega-col ul li {
            margin-bottom: 8px;
        }
        .mega-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition), padding-left var(--transition);
            display: block;
            padding: 4px 0;
        }
        .mega-col ul li a:hover {
            color: var(--text);
            padding-left: 6px;
        }
        .mega-card {
            display: flex;
            gap: 12px;
            background: var(--bg);
            padding: 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            align-items: center;
            transition: border-color var(--transition);
        }
        .mega-card:hover {
            border-color: var(--accent-soft);
        }
        .mega-card-img {
            width: 70px;
            height: 50px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .mega-card-info {
            display: flex;
            flex-direction: column;
        }
        .mega-card-info strong {
            font-size: 0.95rem;
            color: var(--text);
        }
        .mega-card-info span {
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        
        /* Mobile hamburger */
        .mobile-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border);
            color: var(--text);
            font-size: 1.6rem;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--surface);
        }
        
        /* Category Hero Banner */
        .category-hero {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            position: relative;
            padding: 100px 0 80px;
            color: #fff;
            text-align: center;
            border-bottom: 4px solid var(--accent-soft);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(20, 15, 10, 0.7);
            backdrop-filter: blur(2px);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: 4px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
            margin-bottom: 16px;
            color: #f5e7d3;
        }
        .category-hero .subtitle {
            font-size: 1.25rem;
            color: #dcd3c2;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.6;
            font-style: italic;
        }
        
        /* Intro Section */
        .intro-section {
            padding: 60px 0 40px;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .intro-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .intro-content h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .intro-content p {
            color: var(--text-muted);
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        /* Posts Grid */
        .posts-section {
            padding: 60px 0 70px;
            background: var(--bg);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 48px;
            color: var(--text);
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 70px;
            height: 3px;
            background: var(--accent);
            margin: 16px auto 0;
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 32px;
        }
        
        /* Article Card 复古日志卡 */
        .post-card {
            background: var(--surface);
            border: 2px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-soft);
        }
        .post-card-img {
            height: 200px;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }
        .post-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .post-card:hover .post-card-img img {
            transform: scale(1.04);
        }
        .post-card-body {
            padding: 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card-date {
            font-size: 0.85rem;
            color: var(--accent-soft);
            margin-bottom: 10px;
            font-style: italic;
        }
        .post-card-title {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .post-card:hover .post-card-title {
            color: var(--accent);
        }
        .post-card-excerpt {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            flex: 1;
        }
        .post-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid var(--accent-soft);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            align-self: flex-start;
            transition: background var(--transition), color var(--transition);
        }
        .post-card-link:hover {
            background: var(--accent);
            color: #1e1b18;
            border-color: var(--accent);
        }
        
        /* FAQ Section */
        .faq-section {
            padding: 60px 0 70px;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent-soft);
        }
        .faq-question {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            display: flex;
            align-items: baseline;
            gap: 10px;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1rem;
            margin-top: 6px;
        }
        .faq-answer {
            color: var(--text-muted);
            line-height: 1.7;
        }
        
        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #2c221a 0%, #201a14 100%);
            text-align: center;
            border-top: 2px solid var(--accent-soft);
            border-bottom: 2px solid var(--accent-soft);
        }
        .cta-content h3 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: #f0e7d8;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: #c08e54;
            margin-bottom: 28px;
            font-size: 1.1rem;
        }
        .btn-cta {
            display: inline-block;
            background: var(--accent);
            color: #1e1b18;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius);
            border: 2px solid var(--accent);
            font-size: 1.1rem;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .btn-cta:hover {
            background: transparent;
            color: var(--accent);
            border-color: var(--accent-hover);
        }
        
        /* Footer */
        .site-footer {
            background: #171310;
            border-top: 2px solid var(--border);
            padding: 50px 0 30px;
            color: var(--text-muted);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.95rem;
            color: var(--text-dim);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 1px dashed var(--border);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--text);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border);
            padding-top: 20px;
            font-size: 0.9rem;
            color: var(--text-dim);
            flex-wrap: wrap;
            gap: 12px;
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .posts-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
            .mega-panel {
                min-width: 500px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                width: 100%;
                order: 3;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }
            .main-nav.open {
                max-height: 600px;
            }
            .main-nav .nav-list {
                flex-direction: column;
                gap: 8px;
                padding: 16px 0;
                border-top: 1px solid var(--border);
                margin-top: 12px;
            }
            .nav-link {
                padding: 10px 0;
            }
            .mega-panel {
                position: static;
                min-width: auto;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                box-shadow: none;
                margin-top: 8px;
            }
            .nav-item:hover .mega-panel,
            .nav-item.active-mega .mega-panel {
                display: flex;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .posts-grid {
                grid-template-columns: 1fr;
            }
            .category-hero {
                padding: 70px 0 50px;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #1a1b1f;
            --bg-surface: #222328;
            --bg-card: #282a30;
            --bg-card-hover: #2e3037;
            --bg-input: #1e1f24;
            --text-primary: #e4dfd4;
            --text-secondary: #b5b0a3;
            --text-muted: #8a8578;
            --accent: #c49b4a;
            --accent-hover: #d9b15c;
            --accent-soft: rgba(196, 155, 74, 0.12);
            --border: #3a3c42;
            --border-light: #4a4c54;
            --border-accent: #5c4a2e;
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.03);
            --shadow-card-hover: 0 8px 28px rgba(0,0,0,0.35), 0 0 0 1px rgba(196,155,74,0.2);
            --shadow-nav: 0 2px 20px rgba(0,0,0,0.4);
            --font-heading: Georgia, 'Times New Roman', 'Noto Serif SC', serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --section-gap: 64px;
            --container-max: 1120px;
            --container-narrow: 820px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(196,155,74,0.04) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 20%, rgba(180,140,60,0.03) 0%, transparent 50%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

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

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

        /* ============ HEADER & NAV ============ */
        .site-header {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 9px;
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 1rem;
            border: 1px solid var(--border-accent);
        }

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

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 8px 16px;
            border-radius: var(--radius);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: var(--bg-card);
            border-color: var(--border);
        }

        .nav-link.active {
            color: var(--accent);
            background: var(--accent-soft);
            border-color: var(--border-accent);
            font-weight: 600;
        }

        .nav-arrow {
            font-size: 0.6rem;
            opacity: 0.6;
            transition: transform var(--transition);
        }

        .nav-item:hover .nav-arrow {
            opacity: 1;
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            gap: 32px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 16px 40px rgba(0,0,0,0.5);
            min-width: 440px;
            z-index: 999;
        }

        .nav-item:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-col h4 {
            font-family: var(--font-heading);
            font-size: 0.85rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }

        .mega-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mega-col ul li a {
            display: block;
            padding: 7px 10px;
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .mega-col ul li a:hover {
            color: var(--accent);
            background: var(--accent-soft);
        }

        .mega-card {
            display: flex;
            gap: 10px;
            align-items: center;
            padding: 10px;
            border-radius: var(--radius);
            background: var(--bg-surface);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .mega-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-card-hover);
        }

        .mega-card-img {
            width: 60px;
            height: 44px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .mega-card-info strong {
            font-size: 0.85rem;
            color: var(--text-primary);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius);
            font-size: 0.875rem;
            font-weight: 600;
            color: #1a1b1f;
            background: var(--accent);
            transition: all var(--transition);
            white-space: nowrap;
            border: 2px solid var(--accent);
        }

        .nav-cta-btn:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 4px 16px rgba(196,155,74,0.3);
            transform: translateY(-1px);
        }

        /* 移动端汉堡菜单 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 6px;
            cursor: pointer;
            border-radius: var(--radius-sm);
        }

        .mobile-toggle:hover {
            background: var(--bg-card);
        }

        @media (max-width: 860px) {
            .mobile-toggle {
                display: flex;
                align-items: center;
            }
            .main-nav {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--bg-surface);
                flex-direction: column;
                align-items: stretch;
                padding: 20px;
                gap: 6px;
                transform: translateX(100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                overflow-y: auto;
                z-index: 998;
            }
            .main-nav.mobile-open {
                transform: translateX(0);
            }
            .nav-list {
                flex-direction: column;
                gap: 2px;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius);
            }
            .mega-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                flex-direction: column;
                min-width: auto;
                box-shadow: none;
                background: var(--bg-deep);
                margin-top: 4px;
                padding: 14px 16px;
                display: none;
                border-radius: var(--radius);
            }
            .nav-item.mega-open .mega-panel {
                display: flex;
            }
            .nav-cta-btn {
                margin-top: 8px;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 54px;
            }
            .logo-link {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .container {
                padding: 0 14px;
            }
            .container-narrow {
                padding: 0 14px;
            }
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            padding: 18px 0;
            background: var(--bg-deep);
            border-bottom: 1px solid var(--border);
        }

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

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

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

        .breadcrumb .separator {
            color: var(--border-light);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ ARTICLE HERO / BANNER ============ */
        .article-banner {
            position: relative;
            padding: 48px 0 40px;
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(196,155,74,0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        .article-banner-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .article-banner-info {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: var(--accent-soft);
            color: var(--accent);
            border: 1px solid var(--border-accent);
            width: fit-content;
            text-transform: uppercase;
        }

        .article-banner-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-meta-row span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-meta-row i {
            font-size: 0.75rem;
            color: var(--accent);
        }

        .article-cover-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border);
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
            background: var(--bg-card);
        }

        .article-cover-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .article-cover-wrapper:hover img {
            transform: scale(1.03);
        }

        .article-cover-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            border: 1px solid rgba(196,155,74,0.15);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .article-banner-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-banner-title {
                font-size: 1.45rem;
            }
            .article-cover-wrapper {
                aspect-ratio: 16 / 9;
                order: -1;
            }
            .article-banner {
                padding: 28px 0 32px;
            }
        }

        @media (max-width: 520px) {
            .article-banner-title {
                font-size: 1.2rem;
            }
            .article-meta-row {
                gap: 10px;
                font-size: 0.78rem;
            }
            .article-cover-wrapper {
                aspect-ratio: 4 / 3;
            }
        }

        /* ============ ARTICLE CONTENT ============ */
        .article-content-section {
            padding: var(--section-gap) 0;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
            position: relative;
        }

        .article-body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent 70%);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.55rem;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--text-primary);
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body img {
            border-radius: var(--radius);
            margin: 1.5em auto;
            border: 1px solid var(--border);
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent);
            padding: 14px 20px;
            margin: 1.5em 0;
            background: var(--bg-surface);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-secondary);
            font-style: italic;
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
        }

        .article-body ul,
        .article-body ol {
            margin: 1em 0;
            padding-left: 1.5em;
        }

        .article-body li {
            margin-bottom: 0.4em;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .article-body code {
            background: var(--bg-deep);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-size: 0.9em;
            border: 1px solid var(--border);
        }

        @media (max-width: 768px) {
            .article-body {
                padding: 24px 20px;
                font-size: 1rem;
                border-radius: var(--radius);
            }
            .article-body::before {
                border-radius: var(--radius) var(--radius) 0 0;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .article-body {
                padding: 18px 14px;
                font-size: 0.95rem;
                line-height: 1.75;
            }
        }

        /* NOT FOUND STATE */
        .not-found-card {
            text-align: center;
            padding: 60px 30px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 2px dashed var(--border);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .not-found-icon {
            font-size: 3rem;
            color: var(--text-muted);
            opacity: 0.5;
        }

        .not-found-card h2 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            color: var(--text-primary);
        }

        .not-found-card p {
            color: var(--text-secondary);
            max-width: 480px;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 22px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--accent);
            color: #1a1b1f;
            border: 2px solid var(--accent);
            transition: all var(--transition);
            margin-top: 8px;
        }

        .btn-back:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 4px 16px rgba(196,155,74,0.3);
            transform: translateY(-2px);
        }

        /* ============ RELATED POSTS ============ */
        .related-section {
            padding: var(--section-gap) 0;
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            text-align: center;
            margin-bottom: 36px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            background: var(--accent-soft);
            color: var(--accent);
            border: 1px solid var(--border-accent);
            width: fit-content;
            margin: 0 auto;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .related-card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .related-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .related-card:hover .related-card-img-wrap img {
            transform: scale(1.06);
        }

        .related-card-body {
            padding: 16px 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .related-card-cat {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--accent);
            text-transform: uppercase;
        }

        .related-card-title {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover .related-card-title {
            color: var(--accent);
        }

        .related-card-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-card-body {
                padding: 12px 14px 16px;
            }
            .related-card-title {
                font-size: 0.95rem;
            }
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: var(--section-gap) 0;
            text-align: center;
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(196,155,74,0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-card h3 {
            font-family: var(--font-heading);
            font-size: 1.55rem;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 22px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 13px 28px;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.95rem;
            background: var(--accent);
            color: #1a1b1f;
            border: 2px solid var(--accent);
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            letter-spacing: 0.03em;
        }

        .btn-cta:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 6px 22px rgba(196,155,74,0.35);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .cta-card {
                padding: 32px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-card h3 {
                font-size: 1.25rem;
            }
            .btn-cta {
                padding: 11px 22px;
                font-size: 0.88rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-link {
            margin-bottom: 10px;
            display: inline-flex;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.85rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col ul li a {
            font-size: 0.875rem;
            color: var(--text-secondary);
            padding: 4px 0;
            display: inline-block;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        /* ============ UTILITY ============ */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }

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