/* roulang page: index */
:root {
            --bg-primary: #141218;
            --bg-panel: #1b1820;
            --bg-sidebar: #0f0d12;
            --bg-deep: #0c0a0f;
            --gold: #c8963e;
            --gold-light: #e6b45e;
            --gold-dark: #8a5e1f;
            --gold-glow: rgba(200, 150, 62, 0.35);
            --gold-border: rgba(200, 150, 62, 0.4);
            --crimson: #8b2020;
            --crimson-light: #a83232;
            --emerald: #1f5c4b;
            --text-primary: #f2ecdf;
            --text-secondary: #b8af9e;
            --text-muted: #7a7366;
            --text-inverse: #141218;
            --border-subtle: rgba(200, 150, 62, 0.18);
            --shadow-close: 0 4px 16px rgba(0, 0, 0, 0.5);
            --shadow-far: 0 16px 48px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 24px rgba(200, 150, 62, 0.25);
            --radius: 5px;
            --radius-sm: 3px;
            --radius-lg: 7px;
            --sidebar-width: 252px;
            --topbar-height: 60px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', 'STSong', 'Songti SC', serif;
            --font-body: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Heiti SC', sans-serif;
            --section-pad: 72px;
            --card-border: 1px solid var(--gold-border);
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(139, 32, 32, 0.07) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 90%, rgba(31, 92, 75, 0.08) 0%, transparent 50%);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color var(--transition), text-shadow var(--transition);
        }

        a:hover {
            color: var(--gold-light);
            text-shadow: 0 0 12px var(--gold-glow);
        }

        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 2px;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-body);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        button:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        h1,
        h2,
        h3,
        h4 {
            font-family: var(--font-title);
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.02em;
        }

        h1 {
            font-size: 34px;
            margin-bottom: 0.5em;
        }

        h2 {
            font-size: 27px;
            margin-bottom: 0.45em;
        }

        h3 {
            font-size: 20px;
            margin-bottom: 0.35em;
        }

        h4 {
            font-size: 17px;
            margin-bottom: 0.3em;
        }

        p {
            margin-bottom: 1.2em;
        }

        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== App Shell Layout ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--bg-sidebar);
            border-right: 1px solid rgba(200, 150, 62, 0.28);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.3s ease;
        }

        .sidebar-brand {
            padding: 22px 20px 16px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-brand .brand-text {
            display: block;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 19px;
            line-height: 1.4;
            color: var(--gold);
            letter-spacing: 0.03em;
            text-shadow: 0 0 16px rgba(200, 150, 62, 0.35);
        }

        .sidebar-brand .brand-sub {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            letter-spacing: 0.06em;
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            color: var(--text-secondary);
            font-size: 15px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .sidebar-nav .nav-link::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--text-muted);
            transform: rotate(45deg);
            border-radius: 1px;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-link:hover {
            background-color: rgba(200, 150, 62, 0.07);
            color: var(--gold-light);
            border-color: var(--border-subtle);
        }

        .sidebar-nav .nav-link:hover::before {
            background: var(--gold);
        }

        .sidebar-nav .nav-link.active {
            background-color: rgba(200, 150, 62, 0.12);
            border: 1px solid var(--gold-border);
            color: var(--gold);
            box-shadow: inset 0 0 20px rgba(200, 150, 62, 0.06), 0 0 16px rgba(200, 150, 62, 0.1);
        }

        .sidebar-nav .nav-link.active::before {
            background: var(--gold);
            box-shadow: 0 0 8px var(--gold-glow);
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        .sidebar-footer .brand-foot {
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 13px;
            display: block;
            margin-bottom: 6px;
            color: var(--gold);
            letter-spacing: 0.04em;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== Topbar (Mobile) ========== */
        .topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background-color: var(--bg-sidebar);
            border-bottom: 1px solid rgba(200, 150, 62, 0.28);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            gap: 14px;
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            width: 32px;
            height: 32px;
            justify-content: center;
            align-items: center;
            background: none;
            border: 1px solid var(--gold-border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition);
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
            transition: all var(--transition);
        }

        .hamburger:hover {
            border-color: var(--gold);
            box-shadow: 0 0 12px var(--gold-glow);
        }

        .topbar-brand {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 17px;
            color: var(--gold);
            letter-spacing: 0.02em;
            text-shadow: 0 0 12px rgba(200, 150, 62, 0.3);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        /* ========== Section Base ========== */
        .section {
            padding: var(--section-pad) 0;
            border-bottom: 1px solid rgba(200, 150, 62, 0.12);
            position: relative;
        }

        .section:nth-child(even) {
            background-color: var(--bg-panel);
        }

        .section:nth-child(odd) {
            background-color: transparent;
        }

        .section-header {
            margin-bottom: 36px;
            max-width: 720px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 0.14em;
            color: var(--gold);
            text-transform: uppercase;
            border: 1px solid var(--gold-border);
            padding: 4px 12px;
            border-radius: 2px;
            margin-bottom: 14px;
            background: rgba(200, 150, 62, 0.06);
        }

        .section-header h2 {
            color: var(--text-primary);
            letter-spacing: 0.03em;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* ========== Decorative Corner Ornaments ========== */
        .ornate-corner {
            position: relative;
        }

        .ornate-corner::before,
        .ornate-corner::after {
            content: '';
            position: absolute;
            width: 14px;
            height: 14px;
            border-color: var(--gold-border);
            border-style: solid;
            pointer-events: none;
            opacity: 0.8;
        }

        .ornate-corner::before {
            top: -1px;
            left: -1px;
            border-width: 2px 0 0 2px;
            border-radius: 2px 0 0 0;
        }

        .ornate-corner::after {
            bottom: -1px;
            right: -1px;
            border-width: 0 2px 2px 0;
            border-radius: 0 0 2px 0;
        }

        /* ========== Hero Section ========== */
        .hero-section {
            padding: 0;
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            background-image: linear-gradient(180deg, rgba(15, 13, 18, 0.82) 0%, rgba(20, 18, 24, 0.55) 45%, rgba(20, 18, 24, 0.92) 100%),
                url('/assets/images/9c1570cff00dc07a.jpg');
            background-size: cover;
            background-position: center 30%;
            border-bottom: 1px solid var(--gold-border);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(139, 32, 32, 0.2) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(31, 92, 75, 0.18) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(180deg, rgba(20, 18, 24, 0.7) 0%, transparent 100%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 100px 24px 80px;
        }

        .hero-tagline {
            display: inline-block;
            font-size: 14px;
            color: var(--gold-light);
            letter-spacing: 0.16em;
            text-transform: uppercase;
            border: 1px solid var(--gold-border);
            padding: 6px 16px;
            border-radius: 2px;
            background: rgba(20, 18, 24, 0.72);
            margin-bottom: 22px;
        }

        .hero-section h1 {
            color: var(--text-primary);
            font-size: 38px;
            margin-bottom: 20px;
            text-shadow: 0 2px 24px rgba(0, 0, 0, 0.7);
            line-height: 1.4;
            letter-spacing: 0.03em;
        }

        .hero-section .hero-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 2;
            margin-bottom: 30px;
            max-width: 560px;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
        }

        .hero-group-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            background: rgba(20, 18, 24, 0.78);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius-sm);
            margin-bottom: 26px;
            font-size: 14px;
            color: var(--gold-light);
            letter-spacing: 0.03em;
        }

        .hero-group-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--emerald);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(31, 92, 75, 0.8);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.05em;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: 1px solid transparent;
            line-height: 1.2;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #d9a94e 0%, #b88935 40%, #8a5e1f 100%);
            color: var(--text-inverse);
            border: 1px solid #e6b45e;
            box-shadow: 0 2px 12px rgba(200, 150, 62, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
            text-shadow: none;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #e6b45e 0%, #c8963e 40%, #9a6b24 100%);
            box-shadow: 0 4px 28px rgba(200, 150, 62, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(200, 150, 62, 0.25);
            transform: translateY(0);
        }

        .btn-secondary {
            background: rgba(20, 18, 24, 0.7);
            color: var(--gold-light);
            border: 1px solid var(--gold-border);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
        }

        .btn-secondary:hover {
            background: rgba(200, 150, 62, 0.12);
            border-color: var(--gold);
            box-shadow: 0 0 20px rgba(200, 150, 62, 0.2);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            background: rgba(200, 150, 62, 0.18);
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.3);
            transform: translateY(0);
        }

        .btn-tertiary {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid transparent;
            padding: 12px 20px;
        }

        .btn-tertiary:hover {
            color: var(--gold-light);
            border-color: var(--border-subtle);
        }

        /* ========== Metrics Board ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
            gap: 0;
            border: 1px solid var(--gold-border);
            background: rgba(15, 13, 18, 0.55);
            border-radius: var(--radius);
            overflow: hidden;
        }

        .metric-cell {
            padding: 26px 20px;
            text-align: center;
            border-right: 1px solid var(--border-subtle);
            position: relative;
            transition: background-color var(--transition);
        }

        .metric-cell:last-child {
            border-right: none;
        }

        .metric-cell:hover {
            background: rgba(200, 150, 62, 0.05);
        }

        .metric-cell .metric-num {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.04em;
            text-shadow: 0 0 18px rgba(200, 150, 62, 0.4);
            line-height: 1.2;
            display: block;
            margin-bottom: 6px;
        }

        .metric-cell .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        /* ========== Featured Topics ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--gold-border);
            background-size: cover;
            background-position: center;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            transition: all var(--transition);
            text-decoration: none;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(15, 13, 18, 0.2) 0%, rgba(15, 13, 18, 0.85) 75%);
            transition: background var(--transition);
        }

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

        .topic-card:hover::before {
            background: linear-gradient(180deg, rgba(15, 13, 18, 0.1) 0%, rgba(15, 13, 18, 0.75) 75%);
        }

        .topic-card .topic-info {
            position: relative;
            z-index: 2;
            padding: 24px 20px;
            width: 100%;
        }

        .topic-card .topic-name {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .topic-card .topic-count {
            font-size: 14px;
            color: var(--gold-light);
            letter-spacing: 0.05em;
        }

        .topic-card.topic-1 {
            background-image: url('/assets/images/d26b2857de3010f9.jpg');
        }

        .topic-card.topic-2 {
            background-image: url('/assets/images/90aafde9ec27b184.jpg');
        }

        .topic-card.topic-3 {
            background-image: url('/assets/images/642f28341f822590.jpg');
        }

        /* ========== Service Matrix ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: rgba(15, 13, 18, 0.6);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius);
            padding: 26px 22px;
            position: relative;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-glow);
            background: rgba(200, 150, 62, 0.06);
            transform: translateY(-3px);
        }

        .service-card .service-icon {
            font-size: 28px;
            color: var(--gold);
            line-height: 1;
            text-shadow: 0 0 16px rgba(200, 150, 62, 0.4);
            margin-bottom: 4px;
        }

        .service-card h3 {
            color: var(--text-primary);
            font-size: 19px;
            letter-spacing: 0.03em;
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .service-card .service-rule {
            position: absolute;
            bottom: 0;
            left: 22px;
            right: 22px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
        }

        .service-card.wide {
            grid-column: span 2;
            background: rgba(200, 150, 62, 0.06);
            border-color: rgba(200, 150, 62, 0.55);
        }

        .service-card.wide h3 {
            font-size: 22px;
        }

        /* ========== Hot List ========== */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .hot-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 14px 16px;
            background: rgba(15, 13, 18, 0.55);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
            position: relative;
        }

        .hot-item:hover {
            border-color: var(--gold-border);
            background: rgba(200, 150, 62, 0.05);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
        }

        .hot-item .hot-rank {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--gold);
            width: 42px;
            text-align: center;
            text-shadow: 0 0 14px rgba(200, 150, 62, 0.45);
            flex-shrink: 0;
        }

        .hot-item .hot-thumb {
            width: 104px;
            height: 72px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--gold-border);
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .hot-item .hot-detail {
            flex: 1;
            min-width: 0;
        }

        .hot-item .hot-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-family: var(--font-body);
        }

        .hot-item .hot-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hot-item .hot-heat {
            font-size: 13px;
            color: var(--gold-light);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 10px;
            font-size: 12px;
            letter-spacing: 0.04em;
            border-radius: 2px;
            font-weight: 600;
            border: 1px solid transparent;
        }

        .badge-gold {
            background: rgba(200, 150, 62, 0.15);
            border-color: var(--gold-border);
            color: var(--gold-light);
        }

        .badge-crimson {
            background: rgba(139, 32, 32, 0.25);
            border-color: rgba(139, 32, 32, 0.55);
            color: #e8a0a0;
        }

        .badge-emerald {
            background: rgba(31, 92, 75, 0.3);
            border-color: rgba(31, 92, 75, 0.55);
            color: #8fd4bc;
        }

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

        .comparison-panel {
            padding: 26px 22px;
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .comparison-panel.old {
            background: rgba(15, 13, 18, 0.45);
            border: 1px solid rgba(122, 115, 102, 0.3);
            filter: saturate(0.55);
            opacity: 0.75;
        }

        .comparison-panel.premium {
            background: rgba(200, 150, 62, 0.07);
            border: 1px solid var(--gold-border);
            box-shadow: 0 0 28px rgba(200, 150, 62, 0.18);
            position: relative;
        }

        .comparison-panel.premium::after {
            content: '';
            position: absolute;
            top: -1px;
            right: 24px;
            width: 50px;
            height: 3px;
            background: var(--gold);
            border-radius: 0 0 3px 3px;
            box-shadow: 0 0 16px var(--gold-glow);
        }

        .comparison-panel h3 {
            font-size: 18px;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .comparison-panel.old h3 {
            color: var(--text-muted);
        }

        .comparison-panel.premium h3 {
            color: var(--gold-light);
        }

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

        .comparison-panel li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(200, 150, 62, 0.08);
        }

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

        .comparison-panel .cmp-marker {
            flex-shrink: 0;
            width: 18px;
            text-align: center;
            font-size: 14px;
        }

        .comparison-panel.old .cmp-marker {
            color: #6b6459;
        }

        .comparison-panel.premium .cmp-marker {
            color: var(--gold);
            text-shadow: 0 0 8px var(--gold-glow);
        }

        /* ========== Milestone Timeline ========== */
        .milestone-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            padding-top: 12px;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            top: 20px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--gold-border), var(--border-subtle), var(--gold-border), transparent);
        }

        .milestone-node {
            text-align: center;
            position: relative;
            z-index: 2;
            padding: 0 4px;
        }

        .milestone-node .node-diamond {
            width: 28px;
            height: 28px;
            background: var(--bg-primary);
            border: 2px solid var(--gold);
            transform: rotate(45deg);
            margin: 0 auto 14px;
            border-radius: 3px;
            box-shadow: 0 0 16px rgba(200, 150, 62, 0.35);
            transition: all var(--transition);
        }

        .milestone-node:hover .node-diamond {
            box-shadow: 0 0 28px rgba(200, 150, 62, 0.6);
            background: rgba(200, 150, 62, 0.2);
        }

        .milestone-node .node-year {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 6px;
            letter-spacing: 0.06em;
        }

        .milestone-node .node-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== News List ========== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 16px;
            background: rgba(15, 13, 18, 0.55);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
            align-items: flex-start;
        }

        .news-item:hover {
            border-color: var(--gold-border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            background: rgba(200, 150, 62, 0.04);
        }

        .news-item .news-thumb {
            width: 88px;
            height: 66px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--gold-border);
        }

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

        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-item .news-date {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.06em;
            margin-bottom: 6px;
        }

        .news-item .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== Guarantee ========== */
        .guarantee-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .guarantee-card {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px 18px;
            background: rgba(15, 13, 18, 0.55);
            border: 1px solid rgba(31, 92, 75, 0.35);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .guarantee-card:nth-child(even) {
            border-color: rgba(200, 150, 62, 0.3);
        }

        .guarantee-card:hover {
            border-color: var(--gold-border);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.3);
            background: rgba(200, 150, 62, 0.04);
        }

        .guarantee-card .guarantee-icon {
            font-size: 24px;
            color: var(--emerald);
            flex-shrink: 0;
            text-shadow: 0 0 12px rgba(31, 92, 75, 0.5);
            line-height: 1.2;
        }

        .guarantee-card:nth-child(even) .guarantee-icon {
            color: var(--gold);
            text-shadow: 0 0 12px rgba(200, 150, 62, 0.5);
        }

        .guarantee-card h4 {
            font-size: 15px;
            color: var(--text-primary);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
            font-family: var(--font-body);
            font-weight: 600;
        }

        .guarantee-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== Quick Answer ========== */
        .quick-answers {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .quick-answer-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            background: rgba(15, 13, 18, 0.5);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
        }

        .quick-answer-item:hover {
            border-color: var(--gold-border);
            background: rgba(200, 150, 62, 0.05);
        }

        .quick-answer-item .qa-question {
            flex: 0 0 200px;
            font-weight: 600;
            color: var(--gold-light);
            font-size: 15px;
            letter-spacing: 0.02em;
            font-family: var(--font-body);
        }

        .quick-answer-item .qa-answer {
            flex: 1;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
        }

        .quick-answer-item .qa-arrow {
            flex-shrink: 0;
            color: var(--gold);
            font-size: 18px;
            transition: transform var(--transition);
        }

        .quick-answer-item:hover .qa-arrow {
            transform: translateX(4px);
        }

        /* ========== FAQ Accordion ========== */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }

        .faq-accordion details {
            background: rgba(15, 13, 18, 0.55);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            transition: all var(--transition);
            overflow: hidden;
        }

        .faq-accordion details:hover {
            border-color: var(--gold-border);
        }

        .faq-accordion details[open] {
            border-color: var(--gold-border);
            background: rgba(200, 150, 62, 0.04);
            box-shadow: 0 0 20px rgba(200, 150, 62, 0.1);
            border-left: 3px solid var(--gold);
        }

        .faq-accordion summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 18px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 15px;
            letter-spacing: 0.02em;
            list-style: none;
            min-height: 48px;
            transition: color var(--transition);
        }

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

        .faq-accordion summary::after {
            content: '+';
            font-size: 20px;
            color: var(--gold);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-accordion details[open] summary::after {
            transform: rotate(45deg);
        }

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

        .faq-accordion .faq-answer {
            padding: 0 18px 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.85;
        }

        .faq-accordion details[open] .faq-answer {
            border-left: 1px solid var(--border-subtle);
            margin-left: 18px;
            padding-left: 16px;
        }

        /* ========== Conversion Form ========== */
        .conversion-section {
            background: linear-gradient(135deg, rgba(15, 13, 18, 0.92) 0%, rgba(27, 24, 32, 0.88) 100%);
            border-top: 1px solid var(--gold-border);
        }

        .conversion-card {
            max-width: 580px;
            margin: 0 auto;
            background: rgba(15, 13, 18, 0.75);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius);
            padding: 36px 32px;
            position: relative;
            box-shadow: var(--shadow-close), var(--shadow-far);
        }

        .conversion-card .conv-title {
            font-family: var(--font-title);
            font-size: 22px;
            color: var(--gold-light);
            text-align: center;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .conversion-card .conv-subtitle {
            text-align: center;
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            background: rgba(20, 18, 24, 0.8);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 15px;
            transition: all var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.2), 0 0 20px rgba(200, 150, 62, 0.15);
        }

        .form-group input:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            background: rgba(60, 55, 48, 0.5);
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c8963e' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 38px;
        }

        .form-checkbox {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
            cursor: pointer;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .form-checkbox input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--gold);
            flex-shrink: 0;
        }

        .form-submit {
            width: 100%;
            padding: 15px 28px;
            background: linear-gradient(135deg, #d9a94e 0%, #b88935 45%, #8a5e1f 100%);
            border: 1px solid #e6b45e;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.08em;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 2px 14px rgba(200, 150, 62, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
        }

        .form-submit:hover {
            background: linear-gradient(135deg, #e6b45e 0%, #c8963e 45%, #9a6b24 100%);
            box-shadow: 0 4px 28px rgba(200, 150, 62, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .form-submit:active {
            box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(200, 150, 62, 0.25);
            transform: translateY(0);
        }

        .form-note {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            letter-spacing: 0.03em;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-deep);
            border-top: 1px solid var(--gold-border);
            padding: 36px 24px 28px;
            margin-top: auto;
        }

        .footer-inner {
            max-width: 1160px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: space-between;
            align-items: center;
        }

        .footer-brand {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 16px;
            color: var(--gold);
            letter-spacing: 0.04em;
            text-shadow: 0 0 12px rgba(200, 150, 62, 0.3);
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition);
            letter-spacing: 0.03em;
        }

        .footer-links a:hover {
            color: var(--gold-light);
            text-shadow: 0 0 8px var(--gold-glow);
        }

        .footer-copy {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            width: 100%;
            text-align: center;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1200px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .milestone-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px 20px;
            }

            .milestone-timeline::before {
                display: none;
            }
        }

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }

            .sidebar.open {
                transform: translateX(0);
                box-shadow: 8px 0 40px rgba(0, 0, 0, 0.6);
            }

            .topbar {
                display: flex;
            }

            .drawer-overlay {
                display: block;
            }

            .drawer-overlay.open {
                pointer-events: auto;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }

            .hero-section {
                min-height: 65vh;
            }

            .hero-inner {
                padding: 60px 20px 50px;
            }

            .hero-section h1 {
                font-size: 30px;
            }

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

            .service-card.wide {
                grid-column: span 2;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
            }

            h1 {
                font-size: 28px;
            }

            h2 {
                font-size: 23px;
            }

            .container {
                padding: 0 16px;
            }

            .hero-section {
                min-height: 55vh;
            }

            .hero-inner {
                padding: 48px 16px 40px;
            }

            .hero-section h1 {
                font-size: 26px;
            }

            .hero-section .hero-desc {
                font-size: 14px;
                line-height: 1.85;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .btn {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                font-size: 14px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0;
            }

            .metric-cell {
                border-right: none;
                border-bottom: 1px solid var(--border-subtle);
                padding: 20px 14px;
            }

            .metric-cell:nth-child(even) {
                border-left: 1px solid var(--border-subtle);
            }

            .metric-cell:nth-last-child(-n+2) {
                border-bottom: none;
            }

            .metric-cell .metric-num {
                font-size: 26px;
            }

            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .topic-card {
                min-height: 200px;
            }

            .service-matrix {
                grid-template-columns: 1fr;
            }

            .service-card.wide {
                grid-column: span 1;
            }

            .hot-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .hot-item .hot-thumb {
                width: 80px;
                height: 56px;
            }

            .hot-item .hot-rank {
                font-size: 24px;
                width: 32px;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .guarantee-row {
                grid-template-columns: 1fr;
            }

            .quick-answer-item {
                flex-wrap: wrap;
                gap: 8px;
            }

            .quick-answer-item .qa-question {
                flex: none;
                width: 100%;
                font-size: 14px;
            }

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

            .footer-inner {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 16px;
            }

            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 23px;
            }

            .hero-tagline {
                font-size: 12px;
                padding: 5px 10px;
            }

            .metric-cell .metric-num {
                font-size: 22px;
            }

            .topic-card .topic-name {
                font-size: 17px;
            }

            .news-item {
                flex-direction: column;
            }

            .news-item .news-thumb {
                width: 100%;
                height: 120px;
            }

            .form-group input,
            .form-group select {
                padding: 10px 12px;
                font-size: 14px;
            }

            .faq-accordion summary {
                font-size: 14px;
                padding: 14px 12px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #141218;
            --bg-panel: #1b1820;
            --bg-sidebar: #0f0d12;
            --bg-deep: #0c0a0f;
            --gold: #c8963e;
            --gold-light: #e6b45e;
            --gold-dark: #8a5e1f;
            --gold-glow: rgba(200, 150, 62, 0.35);
            --gold-border: rgba(200, 150, 62, 0.4);
            --crimson: #8b2020;
            --crimson-light: #a83232;
            --emerald: #1f5c4b;
            --text-primary: #f2ecdf;
            --text-secondary: #b8af9e;
            --text-muted: #7a7366;
            --text-inverse: #141218;
            --border-subtle: rgba(200, 150, 62, 0.18);
            --shadow-close: 0 4px 16px rgba(0, 0, 0, 0.5);
            --shadow-far: 0 16px 48px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 24px rgba(200, 150, 62, 0.25);
            --radius: 5px;
            --radius-sm: 3px;
            --radius-lg: 7px;
            --sidebar-width: 252px;
            --topbar-height: 60px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', 'STSong', 'Songti SC', serif;
            --font-body: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Heiti SC', sans-serif;
            --section-pad: 72px;
            --card-border: 1px solid var(--gold-border);
        }

        @media (max-width: 1024px) {
            :root {
                --section-pad: 48px;
                --sidebar-width: 240px;
            }
        }

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

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

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

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 18% 8%, rgba(139, 32, 32, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 82% 92%, rgba(31, 92, 75, 0.09) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 20%, rgba(200, 150, 62, 0.04) 0%, transparent 40%);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color var(--transition), text-shadow var(--transition);
        }

        a:hover {
            color: var(--gold-light);
            text-shadow: 0 0 12px var(--gold-glow);
        }

        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 2px;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-body);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        button:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ SIDEBAR ============ */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 2px 0 28px rgba(0, 0, 0, 0.35);
        }

        .sidebar-brand {
            padding: 22px 20px 16px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-brand .brand-text {
            display: block;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 19px;
            line-height: 1.4;
            color: var(--gold);
            letter-spacing: 0.03em;
            text-shadow: 0 0 16px rgba(200, 150, 62, 0.35);
        }

        .sidebar-brand .brand-sub {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            letter-spacing: 0.06em;
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            color: var(--text-secondary);
            font-size: 15px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            position: relative;
        }

        .sidebar-nav .nav-link::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--text-muted);
            transform: rotate(45deg);
            border-radius: 1px;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-link:hover {
            background-color: rgba(200, 150, 62, 0.07);
            color: var(--gold-light);
            border-color: var(--border-subtle);
        }

        .sidebar-nav .nav-link:hover::before {
            background: var(--gold);
        }

        .sidebar-nav .nav-link.active {
            background-color: rgba(200, 150, 62, 0.12);
            border: 1px solid var(--gold-border);
            color: var(--gold);
            box-shadow: inset 0 0 20px rgba(200, 150, 62, 0.06), 0 0 16px rgba(200, 150, 62, 0.1);
        }

        .sidebar-nav .nav-link.active::before {
            background: var(--gold);
            box-shadow: 0 0 8px var(--gold-glow);
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        .sidebar-footer .footer-name {
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 13px;
        }

        /* ============ MAIN CONTENT ============ */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ MOBILE TOPBAR ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background-color: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }

        .mobile-topbar .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            background: rgba(200, 150, 62, 0.06);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-topbar .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
            transition: transform var(--transition), opacity var(--transition);
            transform-origin: center;
        }

        .mobile-topbar .hamburger:hover {
            border-color: var(--gold-border);
            background: rgba(200, 150, 62, 0.12);
        }

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

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

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

        .mobile-topbar .topbar-brand {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 16px;
            color: var(--gold);
            letter-spacing: 0.03em;
            text-shadow: 0 0 12px rgba(200, 150, 62, 0.3);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(12, 10, 15, 0.72);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }

        .drawer-overlay.show {
            opacity: 1;
            pointer-events: all;
        }

        /* ============ BREADCRUMB / PAGE HEAD ============ */
        .page-head {
            padding: 48px 0 32px;
            background-color: var(--bg-deep);
            border-bottom: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
        }

        .page-head::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, var(--gold-dark) 30%, var(--gold) 50%, var(--gold-dark) 70%, transparent 100%);
        }

        .page-head::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, var(--gold-border) 25%, var(--gold-border) 75%, transparent 100%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--gold);
            text-shadow: 0 0 8px var(--gold-glow);
        }

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

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

        .page-head h1 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 34px;
            line-height: 1.4;
            color: var(--text-primary);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(200, 150, 62, 0.15);
        }

        .page-head .head-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }

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

        .section-alt {
            background-color: var(--bg-panel);
        }

        .section-head {
            margin-bottom: 32px;
        }

        .section-head h2 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 26px;
            line-height: 1.4;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
            position: relative;
            padding-left: 16px;
        }

        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
            border-radius: 1px;
            box-shadow: 0 0 8px var(--gold-glow);
        }

        .section-head .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            padding-left: 16px;
            letter-spacing: 0.02em;
        }

        /* ============ FILTER TOOLBAR ============ */
        .filter-toolbar {
            background-color: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            padding: 18px 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            align-items: center;
            position: relative;
            box-shadow: var(--shadow-close);
        }

        .filter-toolbar::before,
        .filter-toolbar::after {
            content: '';
            position: absolute;
            width: 14px;
            height: 14px;
            border-color: var(--gold-border);
            border-style: solid;
            pointer-events: none;
        }

        .filter-toolbar::before {
            top: -1px;
            left: -1px;
            border-width: 2px 0 0 2px;
            border-radius: var(--radius-sm) 0 0 0;
        }

        .filter-toolbar::after {
            bottom: -1px;
            right: -1px;
            border-width: 0 2px 2px 0;
            border-radius: 0 0 var(--radius-sm) 0;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-group .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            font-weight: 600;
            white-space: nowrap;
        }

        .filter-select {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
            min-width: 120px;
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c8963e' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 34px;
        }

        .filter-select:hover {
            border-color: var(--gold-border);
        }

        .filter-select:focus {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
            border-color: var(--gold-border);
            box-shadow: 0 0 12px rgba(200, 150, 62, 0.2);
        }

        .filter-select option {
            background-color: var(--bg-panel);
            color: var(--text-primary);
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 7px 14px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-secondary);
            background-color: transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .filter-tab:hover {
            color: var(--gold-light);
            border-color: var(--gold-border);
            background-color: rgba(200, 150, 62, 0.06);
        }

        .filter-tab.active {
            color: var(--text-inverse);
            background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 40%, var(--gold-dark) 100%);
            border-color: var(--gold);
            font-weight: 700;
            box-shadow: 0 0 16px rgba(200, 150, 62, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
        }

        .filter-tab:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        .filter-tab:active {
            transform: scale(0.97);
        }

        /* ============ RESOURCE GRID ============ */
        .resource-grid-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .resource-grid-head .result-count {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .resource-grid-head .result-count strong {
            color: var(--gold);
            font-size: 18px;
            font-weight: 700;
            text-shadow: 0 0 10px var(--gold-glow);
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--gold);
            padding: 8px 14px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .view-more-link::after {
            content: '→';
            font-size: 15px;
            transition: transform var(--transition);
        }

        .view-more-link:hover {
            color: var(--gold-light);
            border-color: var(--gold-border);
            background-color: rgba(200, 150, 62, 0.07);
            box-shadow: 0 0 16px rgba(200, 150, 62, 0.12);
        }

        .view-more-link:hover::after {
            transform: translateX(4px);
        }

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

        .resource-card {
            background-color: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
            box-shadow: var(--shadow-close);
        }

        .resource-card:hover {
            border-color: var(--gold-border);
            box-shadow: var(--shadow-close), 0 0 28px rgba(200, 150, 62, 0.18);
            transform: translateY(-4px);
        }

        .resource-card .card-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--bg-panel);
        }

        .resource-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .resource-card:hover .card-cover img {
            transform: scale(1.05);
        }

        .resource-card .card-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(180deg, transparent 0%, rgba(12, 10, 15, 0.85) 100%);
            pointer-events: none;
        }

        .resource-card .update-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            z-index: 2;
            padding: 4px 10px;
            background: rgba(11, 9, 14, 0.82);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius-sm);
            font-size: 11px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.05em;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

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

        .resource-card .card-title {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            letter-spacing: 0.02em;
        }

        .resource-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }

        .resource-card .type-badge,
        .resource-card .quality-badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 9px;
            border-radius: var(--radius-sm);
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.5;
        }

        .resource-card .type-badge {
            background-color: rgba(139, 32, 32, 0.22);
            border: 1px solid rgba(139, 32, 32, 0.5);
            color: #e0a0a0;
        }

        .resource-card .quality-badge {
            background-color: rgba(31, 92, 75, 0.25);
            border: 1px solid rgba(31, 92, 75, 0.55);
            color: #9fd8c5;
        }

        .resource-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid var(--border-subtle);
            font-size: 12px;
            color: var(--text-muted);
        }

        .resource-card .heat-number {
            display: flex;
            align-items: center;
            gap: 5px;
            font-weight: 700;
            color: var(--gold);
            font-size: 13px;
        }

        .resource-card .heat-number::before {
            content: '';
            display: inline-block;
            width: 0;
            height: 0;
            border-left: 5px solid transparent;
            border-right: 5px solid transparent;
            border-bottom: 8px solid var(--crimson-light);
            transform: rotate(0deg);
        }

        .resource-card .watch-link {
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 10px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.03em;
        }

        .resource-card .watch-link:hover {
            color: var(--gold);
            border-color: var(--gold-border);
            background-color: rgba(200, 150, 62, 0.08);
            text-shadow: 0 0 8px var(--gold-glow);
        }

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

        .pagination {
            display: flex;
            gap: 6px;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }

        .page-btn {
            min-width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 12px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-secondary);
            background-color: var(--bg-deep);
            transition: all var(--transition);
            letter-spacing: 0.03em;
        }

        .page-btn:hover {
            border-color: var(--gold-border);
            color: var(--gold);
            background-color: rgba(200, 150, 62, 0.06);
        }

        .page-btn.active {
            background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
            border-color: var(--gold);
            color: var(--text-inverse);
            font-weight: 700;
            box-shadow: 0 0 16px rgba(200, 150, 62, 0.25);
        }

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

        .page-btn:active {
            transform: scale(0.95);
        }

        .page-btn:disabled,
        .page-btn.disabled {
            opacity: 0.45;
            cursor: not-allowed;
            pointer-events: none;
            background-color: var(--bg-panel);
            color: var(--text-muted);
        }

        /* ============ TOPIC CAROUSEL ============ */
        .topic-track {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding: 8px 4px 16px;
            scroll-snap-type: x proximity;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--gold-dark) var(--bg-deep);
        }

        .topic-track::-webkit-scrollbar {
            height: 6px;
        }

        .topic-track::-webkit-scrollbar-track {
            background: var(--bg-deep);
            border-radius: 3px;
        }

        .topic-track::-webkit-scrollbar-thumb {
            background: var(--gold-dark);
            border-radius: 3px;
        }

        .topic-mini-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background-color: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
            box-shadow: var(--shadow-close);
        }

        .topic-mini-card:hover {
            border-color: var(--gold-border);
            box-shadow: var(--shadow-close), 0 0 18px rgba(200, 150, 62, 0.15);
            transform: translateY(-3px);
        }

        .topic-mini-card .topic-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--bg-panel);
            position: relative;
        }

        .topic-mini-card .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .topic-mini-card:hover .topic-cover img {
            transform: scale(1.06);
        }

        .topic-mini-card .topic-body {
            padding: 14px 16px;
        }

        .topic-mini-card .topic-title {
            font-family: var(--font-title);
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .topic-mini-card .topic-count {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .topic-mini-card .topic-count strong {
            color: var(--gold);
            font-size: 14px;
        }

        /* ============ QUICK Q&A ============ */
        .quick-qa-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .quick-qa-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            background-color: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .quick-qa-item:hover {
            border-color: var(--gold-border);
            background-color: rgba(200, 150, 62, 0.05);
        }

        .quick-qa-item .qa-arrow {
            color: var(--gold-dark);
            font-size: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .quick-qa-item:hover .qa-arrow {
            transform: translateX(4px);
            color: var(--gold);
        }

        .quick-qa-item .qa-question {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            min-width: 150px;
        }

        .quick-qa-item .qa-answer {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ============ CATEGORY ENTRY CARDS ============ */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .category-entry-card {
            background-color: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: block;
            position: relative;
        }

        .category-entry-card:hover {
            border-color: var(--gold-border);
            box-shadow: var(--shadow-close), 0 0 20px rgba(200, 150, 62, 0.14);
            transform: translateY(-3px);
        }

        .category-entry-card .entry-cover {
            aspect-ratio: 16/10;
            overflow: hidden;
            background-color: var(--bg-panel);
            position: relative;
        }

        .category-entry-card .entry-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .category-entry-card:hover .entry-cover img {
            transform: scale(1.06);
        }

        .category-entry-card .entry-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(180deg, transparent, rgba(12, 10, 15, 0.8));
        }

        .category-entry-card .entry-body {
            padding: 12px 14px 14px;
        }

        .category-entry-card .entry-name {
            font-family: var(--font-title);
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 4px;
        }

        .category-entry-card .entry-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        .category-entry-card .entry-count strong {
            color: var(--gold);
            font-size: 13px;
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-banner {
            background-color: var(--bg-deep);
            border: 1px solid var(--gold-border);
            border-radius: var(--radius);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-close), 0 0 32px rgba(200, 150, 62, 0.08);
        }

        .subscribe-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
            box-shadow: 0 0 12px var(--gold-glow);
        }

        .subscribe-banner .banner-text {
            flex: 1;
            min-width: 220px;
        }

        .subscribe-banner .banner-title {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

        .subscribe-banner .banner-sub {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .subscribe-banner .banner-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            min-width: 260px;
        }

        .subscribe-banner .banner-input {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: var(--text-primary);
            font-size: 14px;
            min-width: 200px;
            flex: 1;
            transition: all var(--transition);
        }

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

        .subscribe-banner .banner-input:hover {
            border-color: var(--gold-border);
        }

        .subscribe-banner .banner-input:focus {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
            border-color: var(--gold-border);
            box-shadow: 0 0 16px rgba(200, 150, 62, 0.2);
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 45%, var(--gold-dark) 100%);
            border: 1px solid var(--gold);
            border-radius: var(--radius-sm);
            color: var(--text-inverse);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: all var(--transition);
            position: relative;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
            white-space: nowrap;
        }

        .btn-gold:hover {
            background: linear-gradient(180deg, var(--gold) 0%, var(--gold-light) 40%, var(--gold) 80%);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
            transform: translateY(-1px);
            color: var(--text-inverse);
            text-shadow: none;
        }

        .btn-gold:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), inset 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .btn-gold:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        .subscribe-banner .form-note {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background-color: var(--bg-sidebar);
            border-top: 1px solid var(--border-subtle);
            padding: 28px 0 22px;
            margin-top: auto;
        }

        .footer-inner {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            justify-content: space-between;
        }

        .footer-brand {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 16px;
            color: var(--gold);
            letter-spacing: 0.03em;
            text-shadow: 0 0 12px rgba(200, 150, 62, 0.25);
        }

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

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .footer-links a:hover {
            color: var(--gold);
            text-shadow: 0 0 8px var(--gold-glow);
        }

        .footer-copy {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            text-align: center;
            width: 100%;
            padding-top: 8px;
            border-top: 1px solid var(--border-subtle);
            margin-top: 4px;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }

            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.55);
            }

            .mobile-topbar {
                display: flex;
            }

            .drawer-overlay {
                display: block;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }

            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }

            .page-head {
                padding: 36px 0 24px;
            }

            .page-head h1 {
                font-size: 28px;
            }
        }

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

            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .filter-toolbar {
                padding: 14px;
                gap: 12px 16px;
            }

            .filter-tabs {
                gap: 4px;
            }

            .filter-tab {
                padding: 6px 10px;
                font-size: 12px;
            }

            .topic-mini-card {
                flex: 0 0 240px;
            }

            .quick-qa-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 14px;
            }

            .quick-qa-item .qa-question {
                min-width: auto;
            }

            .subscribe-banner {
                padding: 20px 18px;
            }

            .subscribe-banner .banner-form {
                min-width: 100%;
                flex-direction: column;
            }

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

            .page-head h1 {
                font-size: 24px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }

            .footer-links {
                justify-content: center;
                gap: 12px;
            }

            .pagination .page-btn {
                min-width: 36px;
                height: 36px;
                padding: 0 8px;
                font-size: 13px;
            }

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

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

            .filter-group {
                width: 100%;
            }

            .filter-select {
                flex: 1;
                min-width: 0;
            }

            .filter-tabs {
                width: 100%;
            }

            .filter-tab {
                flex: 1;
                text-align: center;
                padding: 6px 8px;
                font-size: 11px;
            }

            .page-head h1 {
                font-size: 21px;
                line-height: 1.5;
            }

            .breadcrumb {
                font-size: 12px;
                gap: 5px;
            }

            .resource-card .card-title {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 20px;
                padding-left: 12px;
            }

            .section-head h2::before {
                height: 20px;
            }
        }