/* roulang page: index */
:root {
            --primary: #9BFF57;
            --primary-soft: rgba(155, 255, 87, 0.18);
            --accent: #FF4E2B;
            --accent-soft: rgba(255, 78, 43, 0.18);
            --data-cyan: #3AB5E6;
            --data-cyan-soft: rgba(58, 181, 230, 0.16);
            --bg-base: #0A1210;
            --bg-card: #0E1714;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(10, 18, 16, 0.88);
            --text-primary: #F2F6F4;
            --text-secondary: rgba(242, 246, 244, 0.72);
            --text-muted: rgba(242, 246, 244, 0.48);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(155, 255, 87, 0.5);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(155, 255, 87, 0.18);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", "Segoe UI", sans-serif;
            --spacing-section: 72px;
            --max-width: 1200px;
            --transition: 0.24s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-primary);
            background: var(--bg-base);
            overflow-x: hidden;
            font-variant-numeric: tabular-nums;
        }

        a {
            color: var(--data-cyan);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
        }
        button:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        input {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            padding: 12px 16px;
            height: 48px;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }
        input::placeholder {
            color: var(--text-muted);
        }
        input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-soft);
            outline: none;
        }

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

        section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        section + section {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        section:nth-of-type(even) {
            background: rgba(255, 255, 255, 0.012);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 650;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.08em;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 650;
            font-size: 0.95rem;
            border-radius: 999px;
            padding: 14px 28px;
            min-height: 48px;
            transition: all var(--transition);
            line-height: 1.2;
            letter-spacing: 0.02em;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, #FF5E3A 0%, #FF4E2B 60%, #E63E1A 100%);
            color: #FFFFFF;
            box-shadow: 0 8px 20px rgba(255, 78, 43, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 78, 43, 0.5);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 78, 43, 0.3);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--data-cyan);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.3);
            color: var(--primary);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 0;
            min-height: 36px;
        }
        .btn-ghost:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 40px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            min-height: 56px;
            font-size: 1.05rem;
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 18, 16, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 18, 16, 0.93);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-primary);
            text-decoration: none;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-desktop a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 8px 14px;
            border-radius: 8px;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.02em;
        }
        .nav-desktop a:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-desktop a.active {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.08);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            cursor: pointer;
        }
        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            inset: 0;
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 80px 24px 40px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            font-size: 1.15rem;
            font-weight: 550;
            color: var(--text-primary);
            padding: 14px 12px;
            border-radius: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            text-decoration: none;
            transition: all var(--transition);
        }
        .mobile-drawer a:hover, .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.06);
        }
        .mobile-drawer .btn {
            margin-top: 16px;
        }
        .drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            width: 44px;
            height: 44px;
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* Hero */
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            position: relative;
            background: url('/assets/images/484aa1d1393e285a.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(10, 18, 16, 0.72) 20%, rgba(10, 18, 16, 0.88) 60%, rgba(10, 18, 16, 0.95) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(155, 255, 87, 0.06) 0%, transparent 55%);
            z-index: 2;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            width: 100%;
        }
        .hero-content {
            padding-right: 8px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(155, 255, 87, 0.1);
            border: 1px solid rgba(155, 255, 87, 0.3);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: clamp(1.9rem, 4vw, 2.9rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .hero h1 .accent {
            color: var(--primary);
            position: relative;
        }
        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 16px;
        }
        .hero-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.85;
            max-width: 540px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-meta {
            display: flex;
            gap: 28px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-meta-value {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--primary);
        }
        .hero-meta-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-cards {
            position: relative;
            height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-card {
            background: rgba(10, 18, 16, 0.65);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(155, 255, 87, 0.2);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            position: absolute;
            transition: all var(--transition);
            overflow: hidden;
        }
        .hero-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-hover);
        }
        .hero-card-main {
            width: 320px;
            height: 380px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 3;
            background: rgba(10, 18, 16, 0.8);
            border: 1px solid rgba(155, 255, 87, 0.3);
        }
        .hero-card-side-top {
            width: 200px;
            height: 170px;
            top: 0;
            right: 6%;
            z-index: 4;
            transform: rotate(4deg);
        }
        .hero-card-side-bottom {
            width: 210px;
            height: 190px;
            bottom: 0;
            left: 4%;
            z-index: 2;
            transform: rotate(-3deg);
        }
        .hero-card-inner {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .hero-card-team {
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 550;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .hero-card-score {
            font-family: var(--font-num);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.04em;
        }
        .hero-card-time {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-family: var(--font-num);
        }
        .hero-card-stat {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-card-stat span {
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.75rem;
            color: var(--data-cyan);
            font-family: var(--font-num);
        }
        .hero-card-live {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.7rem;
            color: var(--accent);
            font-weight: 650;
        }
        .hero-card-live::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Data ticker */
        .data-ticker {
            padding: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(255, 255, 255, 0.02);
            overflow: hidden;
            position: relative;
        }
        .data-ticker-track {
            display: flex;
            gap: 12px;
            padding: 16px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: rgba(155, 255, 87, 0.3) transparent;
        }
        .data-ticker-track::-webkit-scrollbar {
            height: 4px;
        }
        .data-ticker-track::-webkit-scrollbar-thumb {
            background: rgba(155, 255, 87, 0.3);
            border-radius: 4px;
        }
        .ticker-card {
            flex: 0 0 auto;
            min-width: 220px;
            max-width: 260px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            padding: 12px 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: border-color var(--transition);
        }
        .ticker-card:hover {
            border-color: rgba(155, 255, 87, 0.35);
        }
        .ticker-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .ticker-card-match {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.85rem;
        }
        .ticker-card-score {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--primary);
        }
        .ticker-card-tag {
            font-size: 0.7rem;
            color: var(--data-cyan);
            background: rgba(58, 181, 230, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        /* Feature panels */
        .feature-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
            margin-top: 32px;
        }
        .feature-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
            position: relative;
        }
        .feature-panel:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .feature-panel:first-child {
            grid-row: span 1;
        }
        .feature-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .feature-panel .panel-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .feature-list li::before {
            content: '▹';
            color: var(--primary);
            flex-shrink: 0;
            font-weight: 700;
        }
        .feature-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 12px;
            margin-top: 16px;
        }
        .feature-chart {
            width: 100%;
            height: 140px;
            background: linear-gradient(180deg, rgba(58, 181, 230, 0.08) 0%, rgba(155, 255, 87, 0.04) 100%);
            border-radius: 12px;
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            padding: 16px;
            gap: 8px;
            margin-top: 16px;
        }
        .feature-chart-bar {
            width: 20%;
            max-width: 48px;
            background: linear-gradient(180deg, var(--data-cyan) 0%, rgba(58, 181, 230, 0.3) 100%);
            border-radius: 4px 4px 0 0;
            transition: height 0.6s ease;
        }

        /* Scenarios 四象限 */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 32px;
        }
        .scenario-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .scenario-card:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
        }
        .scenario-card .scenario-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            background: rgba(155, 255, 87, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }
        .scenario-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .scenario-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* Screenshots */
        .screenshot-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .screenshot-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .screenshot-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .screenshot-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }
        .screenshot-card-body {
            padding: 16px 20px;
        }
        .screenshot-card-body h3 {
            font-size: 0.95rem;
            font-weight: 650;
            margin-bottom: 6px;
        }
        .screenshot-card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Cases */
        .case-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .case-card {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition);
        }
        .case-card:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
        }
        .case-card .case-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 78, 43, 0.1);
            padding: 4px 10px;
            border-radius: 4px;
            display: inline-block;
            width: fit-content;
        }
        .case-card h3 {
            font-size: 1rem;
            font-weight: 650;
            color: var(--text-primary);
        }
        .case-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
        }
        .case-card .case-result {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            font-family: var(--font-num);
        }

        /* Brand intro */
        .brand-intro {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0;
        }
        .brand-intro .container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 32px;
            align-items: start;
        }
        .brand-intro h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .brand-intro .brand-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
        }
        .brand-intro .brand-text p + p {
            margin-top: 12px;
        }
        .brand-intro .brand-text strong {
            color: var(--primary);
            font-weight: 650;
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .pricing-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .pricing-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .pricing-card.featured {
            border-color: rgba(155, 255, 87, 0.4);
            box-shadow: var(--shadow-glow);
        }
        .pricing-card .pricing-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 0.7rem;
            color: var(--accent);
            background: rgba(255, 78, 43, 0.1);
            padding: 3px 10px;
            border-radius: 4px;
            font-weight: 600;
        }
        .pricing-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .pricing-card .price {
            font-family: var(--font-num);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
        }
        .pricing-card .price span {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .pricing-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex-grow: 1;
        }
        .pricing-card ul li {
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .pricing-card ul li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-img {
            width: 100%;
            height: 100px;
            object-fit: cover;
            border-radius: 10px;
            margin-top: auto;
            opacity: 0.8;
        }

        /* Testimonials */
        .testimonial-masonry {
            columns: 2;
            column-gap: 20px;
            margin-top: 32px;
        }
        .testimonial-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 22px;
            break-inside: avoid;
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            border-color: var(--border-hover);
        }
        .testimonial-card .stars {
            color: #FFD84D;
            font-size: 0.85rem;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }
        .testimonial-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .testimonial-card .author {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 550;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .testimonial-card .author-avatar {
            width: 32px;
            height: 32px;
            background: rgba(155, 255, 87, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 700;
        }

        /* Reputation dashboard */
        .reputation-dash {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .rep-metric {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
        }
        .rep-metric:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
        }
        .rep-metric .rep-value {
            font-family: var(--font-num);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
        }
        .rep-metric .rep-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .rep-metric .rep-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 10px;
            line-height: 1.5;
        }

        /* News */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 16px;
            padding: 16px;
            transition: all var(--transition);
        }
        .news-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .news-card img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }
        .news-card-body {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-card-body h3 {
            font-size: 0.95rem;
            font-weight: 650;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .news-card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex-grow: 1;
        }
        .news-card-body .news-date {
            font-size: 0.72rem;
            color: var(--data-cyan);
            font-family: var(--font-num);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 32px;
            max-width: 850px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.14);
        }
        .faq-item.open {
            border-color: var(--border-hover);
        }
        .faq-item-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 20px;
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            gap: 16px;
            transition: all var(--transition);
        }
        .faq-item-header:hover {
            color: var(--primary);
        }
        .faq-item-header .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: transform var(--transition);
            color: var(--primary);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item-body {
            padding: 0 20px 16px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-item-body {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(150deg, #0A1210 0%, #0E1714 55%, #1A241F 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 80%, rgba(155, 255, 87, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1 1 240px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 12px;
            color: var(--text-primary);
            padding: 14px 16px;
            height: 52px;
            min-width: 220px;
        }
        .cta-form .btn {
            flex-shrink: 0;
            min-height: 52px;
        }
        .cta-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 14px;
        }

        /* Footer */
        .site-footer {
            background: #070D0B;
            padding: 56px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 300px;
        }
        .footer-col h3 {
            font-size: 0.85rem;
            font-weight: 650;
            color: var(--text-secondary);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-sub {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-sub input {
            width: 100%;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 56px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero {
                padding-top: 90px;
                min-height: auto;
                padding-bottom: 56px;
            }
            .hero-cards {
                height: 300px;
            }
            .hero-card-main {
                width: 260px;
                height: 300px;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
            }
            .hero-card-side-top {
                width: 160px;
                height: 130px;
                right: 8%;
                top: 10px;
            }
            .hero-card-side-bottom {
                width: 170px;
                height: 140px;
                left: 6%;
                bottom: 10px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr 1fr;
            }
            .reputation-dash {
                grid-template-columns: 1fr 1fr;
            }
            .screenshot-row {
                grid-template-columns: 1fr 1fr;
            }
            .case-row {
                grid-template-columns: 1fr 1fr;
            }
            .brand-intro .container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 44px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-cards {
                height: 260px;
            }
            .hero-card-main {
                width: 220px;
                height: 250px;
            }
            .hero-card-side-top {
                width: 130px;
                height: 110px;
                right: 4%;
                top: 0;
            }
            .hero-card-side-bottom {
                width: 140px;
                height: 120px;
                left: 3%;
                bottom: 0;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .screenshot-row {
                grid-template-columns: 1fr;
            }
            .case-row {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-masonry {
                columns: 1;
            }
            .reputation-dash {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .rep-metric .rep-value {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            section {
                padding: var(--spacing-section) 0;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input {
                width: 100%;
            }
            .cta-form .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .hero-card-side-top,
            .hero-card-side-bottom {
                display: none;
            }
            .hero-card-main {
                width: 200px;
                height: 230px;
            }
            .hero-cards {
                height: 230px;
            }
            .feature-panel {
                padding: 20px;
            }
            .pricing-card {
                padding: 20px;
            }
            .news-card {
                flex-direction: column;
                gap: 12px;
            }
            .news-card img {
                width: 100%;
                height: 160px;
            }
            .rep-metric {
                padding: 16px;
            }
            .rep-metric .rep-value {
                font-size: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #9BFF57;
            --primary-soft: rgba(155, 255, 87, 0.18);
            --accent: #FF4E2B;
            --accent-soft: rgba(255, 78, 43, 0.18);
            --data-cyan: #3AB5E6;
            --data-cyan-soft: rgba(58, 181, 230, 0.16);
            --bg-base: #0A1210;
            --bg-card: #0E1714;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(10, 18, 16, 0.88);
            --text-primary: #F2F6F4;
            --text-secondary: rgba(242, 246, 244, 0.72);
            --text-muted: rgba(242, 246, 244, 0.48);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(155, 255, 87, 0.5);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(155, 255, 87, 0.18);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", "Segoe UI", sans-serif;
            --spacing-section: 72px;
            --max-width: 1200px;
            --transition: 0.24s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-primary);
            background: var(--bg-base);
            overflow-x: hidden;
            font-variant-numeric: tabular-nums;
        }
        a {
            color: var(--data-cyan);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        input {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            padding: 12px 16px;
            height: 48px;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }
        input::placeholder {
            color: var(--text-muted);
        }
        input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-soft);
            outline: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        section + section {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 650;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 650;
            font-size: 0.95rem;
            border-radius: 999px;
            padding: 14px 28px;
            min-height: 48px;
            transition: all var(--transition);
            line-height: 1.2;
            letter-spacing: 0.02em;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, #FF5E3A 0%, #FF4E2B 60%, #E63E1A 100%);
            color: #FFFFFF;
            box-shadow: 0 8px 20px rgba(255, 78, 43, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 78, 43, 0.5);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 78, 43, 0.3);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--data-cyan);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.32);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: none;
            color: var(--text-secondary);
            padding: 8px 4px;
            min-height: auto;
            border-radius: 0;
            border-bottom: 1px solid transparent;
            gap: 6px;
        }
        .btn-ghost:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .btn-sm {
            padding: 8px 18px;
            min-height: 40px;
            font-size: 0.85rem;
        }

        /* ===== header/nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 18, 16, 0.55);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            background: #0A1210EE;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-desktop li a {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            letter-spacing: 0.02em;
        }
        .nav-desktop li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-desktop li a:hover,
        .nav-desktop li a.active {
            color: var(--primary);
        }
        .nav-desktop li a.active::after,
        .nav-desktop li a:hover::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            padding: 12px;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--primary);
        }
        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }
        .mobile-nav {
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            z-index: 999;
            padding: 24px;
            display: none;
            flex-direction: column;
            gap: 8px;
            max-height: calc(100vh - 72px);
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 12px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(255, 255, 255, 0.06);
            border-left-color: var(--primary);
            color: var(--primary);
        }

        /* ===== 分类页 H1 头部 ===== */
        .category-hero {
            padding-top: 120px;
            padding-bottom: 40px;
            min-height: 40vh;
            max-height: 40vh;
            display: flex;
            align-items: flex-end;
            background: url('/assets/images/484aa1d1393e285a.webp') center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,18,16,0.65) 0%, rgba(10,18,16,0.85) 60%, var(--bg-base) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.24);
        }
        .breadcrumb .current {
            color: var(--primary);
        }
        .category-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .category-hero .hero-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== 筛选/工具条 ===== */
        .filter-bar {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: 16px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            backdrop-filter: blur(8px);
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .filter-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .filter-tabs {
            display: flex;
            gap: 4px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 999px;
            padding: 4px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: 999px;
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-tab:hover {
            color: var(--primary);
        }
        .filter-tab.active {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(155, 255, 87, 0.3);
        }
        .filter-select {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 10px 14px;
            font-size: 0.85rem;
            height: 40px;
            cursor: pointer;
            min-width: 140px;
        }
        .filter-select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px var(--primary-soft);
        }

        /* ===== 数据摘要/排行卡片 ===== */
        .summary-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 18px;
        }
        .summary-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            grid-column: span 3;
        }
        .summary-card:nth-child(1) {
            grid-column: span 4;
        }
        .summary-card:nth-child(2) {
            grid-column: span 4;
        }
        .summary-card:nth-child(3) {
            grid-column: span 4;
        }
        .summary-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }
        .summary-card .card-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 650;
            padding: 4px 10px;
            border-radius: 999px;
            background: var(--accent-soft);
            color: var(--accent);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .summary-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .summary-card .stat-value {
            font-family: var(--font-num);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }
        .summary-card .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .summary-card .card-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/9;
            margin-top: 8px;
        }
        .summary-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .summary-card .trend-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 650;
            color: var(--data-cyan);
            margin-top: 6px;
        }

        /* ===== 列表/卡片主体 ===== */
        .report-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .report-card {
            display: grid;
            grid-template-columns: 120px 1fr auto;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            align-items: center;
        }
        .report-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-hover);
            transform: translateX(4px);
        }
        .report-thumb {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4/3;
            background: var(--bg-elevated);
        }
        .report-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .report-info {
            min-width: 0;
        }
        .report-info h3 {
            font-size: 1.1rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .report-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .report-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .report-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 999px;
            background: var(--data-cyan-soft);
            color: var(--data-cyan);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .report-tag.high {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .report-tag.green {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .report-meta {
            text-align: right;
            white-space: nowrap;
        }
        .report-meta .rating {
            font-family: var(--font-num);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 4px;
        }
        .report-meta .rating-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .report-meta .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .list-footer-actions {
            text-align: center;
            margin-top: 24px;
        }

        /* ===== 数据趋势/专题面板 ===== */
        .trend-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .trend-panel .trend-img {
            aspect-ratio: 21/9;
            overflow: hidden;
            position: relative;
        }
        .trend-panel .trend-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .trend-panel .trend-body {
            padding: 28px;
        }
        .trend-panel .trend-body h3 {
            font-size: 1.2rem;
            font-weight: 650;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .trend-panel .trend-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 820px;
        }
        .chart-bars {
            display: flex;
            align-items: flex-end;
            gap: 10px;
            margin: 20px 0 8px;
            height: 80px;
        }
        .chart-bar {
            flex: 1;
            border-radius: 6px 6px 2px 2px;
            background: var(--data-cyan-soft);
            border: 1px solid rgba(58, 181, 230, 0.25);
            transition: all 0.3s;
            min-width: 16px;
            position: relative;
        }
        .chart-bar:nth-child(even) {
            background: var(--primary-soft);
            border-color: rgba(155, 255, 87, 0.25);
        }
        .chart-bar:hover {
            background: var(--data-cyan);
            border-color: var(--data-cyan);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: rgba(255, 255, 255, 0.015);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: none;
            color: var(--text-primary);
            font-size: 0.98rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-subtle);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition);
            font-size: 1rem;
            line-height: 1;
        }
        .faq-question:hover .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
        }
        .faq-item.open .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 20px 18px;
        }

        /* ===== 相关分类入口 ===== */
        .related-nav-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            max-width: 760px;
        }
        .related-nav-card {
            display: block;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
            text-align: center;
        }
        .related-nav-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .related-nav-card .nav-icon {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-nav-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .related-nav-card span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(180deg, rgba(10,18,16,0.95) 0%, #0A1210 100%);
            border-top: 1px solid rgba(155, 255, 87, 0.12);
            padding: 56px 0;
        }
        .cta-card {
            background: var(--bg-card);
            border: 1px solid rgba(155, 255, 87, 0.16);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            box-shadow: var(--shadow-card-hover);
        }
        .cta-card h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .cta-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 0;
        }
        .cta-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 10px;
            display: block;
        }

        /* ===== footer ===== */
        .site-footer {
            background: #070D0B;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 20px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 1.15rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h3 {
            font-size: 0.85rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-sub {
            display: flex;
            gap: 8px;
        }
        .footer-sub input {
            flex: 1;
            min-width: 0;
            height: 40px;
            font-size: 0.85rem;
            padding: 8px 12px;
        }
        .footer-sub .btn {
            min-height: 40px;
            height: 40px;
            font-size: 0.8rem;
            padding: 8px 16px;
            white-space: nowrap;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== responsive ===== */
        @media (max-width: 1024px) {
            .summary-card:nth-child(1),
            .summary-card:nth-child(2),
            .summary-card:nth-child(3) {
                grid-column: span 6;
            }
            .summary-card:nth-child(3) {
                grid-column: span 12;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .category-hero {
                padding-top: 100px;
                padding-bottom: 32px;
                min-height: auto;
                max-height: none;
            }
            .summary-card:nth-child(1),
            .summary-card:nth-child(2),
            .summary-card:nth-child(3) {
                grid-column: span 12;
            }
            .report-card {
                grid-template-columns: 80px 1fr;
                gap: 14px;
                padding: 16px;
            }
            .report-thumb {
                aspect-ratio: 3/4;
            }
            .report-meta {
                grid-column: 1 / -1;
                text-align: left;
                display: flex;
                align-items: center;
                gap: 12px;
                flex-wrap: wrap;
            }
            .report-meta .date {
                margin-top: 0;
            }
            .cta-card {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px 20px;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-select {
                width: 100%;
            }
            .related-nav-grid {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            :root {
                --spacing-section: 40px;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .report-card {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 14px;
            }
            .report-thumb {
                aspect-ratio: 16/9;
            }
            .report-info h3 {
                font-size: 1rem;
            }
            .report-meta {
                grid-column: auto;
            }
            .btn {
                padding: 12px 20px;
                font-size: 0.9rem;
                min-height: 44px;
            }
            .footer-sub {
                flex-direction: column;
            }
            .footer-sub .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #9BFF57;
            --primary-soft: rgba(155, 255, 87, 0.18);
            --accent: #FF4E2B;
            --accent-soft: rgba(255, 78, 43, 0.18);
            --data-cyan: #3AB5E6;
            --data-cyan-soft: rgba(58, 181, 230, 0.16);
            --bg-base: #0A1210;
            --bg-card: #0E1714;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(10, 18, 16, 0.88);
            --text-primary: #F2F6F4;
            --text-secondary: rgba(242, 246, 244, 0.72);
            --text-muted: rgba(242, 246, 244, 0.48);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(155, 255, 87, 0.5);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(155, 255, 87, 0.18);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", "Segoe UI", sans-serif;
            --spacing-section: 72px;
            --max-width: 1200px;
            --transition: 0.24s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --spacing-section: 44px;
            }
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-primary);
            background: var(--bg-base);
            overflow-x: hidden;
            font-variant-numeric: tabular-nums;
            min-height: 100vh;
        }

        a {
            color: var(--data-cyan);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        input {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            padding: 12px 16px;
            height: 48px;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }
        input::placeholder {
            color: var(--text-muted);
        }
        input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-soft);
            outline: none;
        }

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

        section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        section + section {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        section:nth-of-type(even) {
            background: rgba(255, 255, 255, 0.012);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 650;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 650;
            font-size: 0.95rem;
            border-radius: 999px;
            padding: 14px 28px;
            min-height: 48px;
            transition: all var(--transition);
            line-height: 1.2;
            letter-spacing: 0.02em;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, #FF5E3A 0%, #FF4E2B 60%, #E63E1A 100%);
            color: #FFFFFF;
            box-shadow: 0 8px 20px rgba(255, 78, 43, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 78, 43, 0.5);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 78, 43, 0.3);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--data-cyan);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-hover);
            color: var(--primary);
        }
        .btn-ghost {
            background: none;
            border: none;
            color: var(--data-cyan);
            padding: 8px 0;
            min-height: auto;
            border-radius: 0;
            border-bottom: 2px solid transparent;
        }
        .btn-ghost:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 40px;
            font-size: 0.85rem;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 18, 16, 0.55);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            background: #0A1210EE;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
            margin: 0;
            padding: 0;
        }
        .nav-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }
        .nav-desktop li a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-desktop li a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 650;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            transition: background var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: min(320px, 85vw);
            background: rgba(10, 18, 16, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 1100;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            transform: translateX(100%);
            transition: transform 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .mobile-drawer-close {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
        }
        .mobile-drawer-close:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--primary);
        }
        .mobile-drawer-close svg {
            width: 24px;
            height: 24px;
        }
        .mobile-drawer nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin: 0;
            padding: 0;
        }
        .mobile-drawer nav ul li a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }
        .mobile-drawer nav ul li a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .mobile-drawer nav ul li a.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 650;
        }
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1050;
            opacity: 0;
            transition: opacity 0.28s ease;
        }
        .drawer-overlay.show {
            opacity: 1;
        }

        /* ========== BREADCRUMB / PAGE HEADER ========== */
        .page-header {
            padding-top: 120px;
            padding-bottom: 48px;
            position: relative;
            background: var(--bg-base);
            min-height: 40vh;
            display: flex;
            align-items: flex-end;
        }
        .page-header-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            overflow: hidden;
        }
        .page-header-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            opacity: 0.35;
        }
        .page-header-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 18, 16, 0.7) 0%, rgba(10, 18, 16, 0.85) 60%, rgba(10, 18, 16, 0.95) 100%);
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb ol {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li + li::before {
            content: '/';
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb li[aria-current="page"] {
            color: var(--primary);
            font-weight: 500;
        }
        .page-header h1 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            max-width: 800px;
        }
        .page-header .page-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }

        /* ========== FILTER TOOLBAR ========== */
        .filter-toolbar {
            padding: 24px 0;
            background: rgba(255, 255, 255, 0.02);
            border-bottom: 1px solid var(--border-subtle);
        }
        .filter-toolbar .container {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            align-items: center;
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-lg);
            padding: 18px 24px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            margin-right: 4px;
        }
        .filter-tab {
            padding: 8px 16px;
            font-size: 0.86rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border-radius: 999px;
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .filter-tab.active {
            color: var(--primary);
            background: var(--primary-soft);
            border-color: rgba(155, 255, 87, 0.35);
            font-weight: 600;
        }

        /* ========== SUMMARY CARDS ========== */
        .summary-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }
        .summary-card {
            position: relative;
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            padding: 24px;
            display: flex;
            flex-direction: column;
            min-height: 180px;
        }
        .summary-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .summary-card .card-img {
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            overflow: hidden;
            opacity: 0.25;
            z-index: 0;
        }
        .summary-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .summary-card .card-content {
            position: relative;
            z-index: 1;
            flex: 1;
        }
        .summary-card .card-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 650;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .summary-card .card-value {
            font-family: var(--font-num);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }
        .summary-card .card-title {
            font-size: 1rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .summary-card .card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .summary-card.span-4 {
            grid-column: span 4;
        }
        .summary-card.span-3 {
            grid-column: span 3;
        }
        .summary-card.span-5 {
            grid-column: span 5;
        }
        .summary-card.span-6 {
            grid-column: span 6;
        }
        .summary-card.span-7 {
            grid-column: span 7;
        }
        @media (max-width: 1024px) {
            .summary-card.span-4,
            .summary-card.span-3,
            .summary-card.span-5,
            .summary-card.span-6,
            .summary-card.span-7 {
                grid-column: span 6;
            }
        }
        @media (max-width: 600px) {
            .summary-card.span-4,
            .summary-card.span-3,
            .summary-card.span-5,
            .summary-card.span-6,
            .summary-card.span-7 {
                grid-column: span 12;
            }
        }

        /* ========== LIST CARDS ========== */
        .list-horizontal {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .list-item-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            align-items: center;
        }
        .list-item-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .list-item-card .list-thumb {
            width: 96px;
            height: 72px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .list-item-card .list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .list-item-card .list-body {
            flex: 1;
            min-width: 0;
        }
        .list-item-card .list-title {
            font-size: 1.02rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .list-item-card .list-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-item-card .list-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }
        .list-tag {
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 999px;
            background: var(--data-cyan-soft);
            color: var(--data-cyan);
        }
        .list-tag.hot {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .list-tag.live {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .list-item-card .list-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
            font-family: var(--font-num);
        }
        @media (max-width: 600px) {
            .list-item-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .list-item-card .list-thumb {
                width: 100%;
                height: 140px;
            }
        }

        /* ========== TREND PANEL ========== */
        .trend-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .trend-panel .trend-visual {
            width: 100%;
            height: 280px;
            position: relative;
            background: rgba(255, 255, 255, 0.03);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .trend-panel .trend-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
        }
        .trend-panel .trend-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(58, 181, 230, 0.12) 0%, rgba(155, 255, 87, 0.06) 50%, rgba(255, 78, 43, 0.08) 100%);
        }
        .trend-panel .trend-chart {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            height: 60%;
            display: flex;
            align-items: flex-end;
            gap: 4px;
            z-index: 1;
        }
        .trend-panel .trend-chart .bar {
            flex: 1;
            background: linear-gradient(180deg, var(--data-cyan) 0%, rgba(58, 181, 230, 0.3) 100%);
            border-radius: 4px 4px 0 0;
            min-height: 8px;
            transition: height 0.5s ease;
        }
        .trend-panel .trend-chart .bar.high {
            background: linear-gradient(180deg, var(--primary) 0%, rgba(155, 255, 87, 0.3) 100%);
        }
        .trend-panel .trend-chart .bar.hot {
            background: linear-gradient(180deg, var(--accent) 0%, rgba(255, 78, 43, 0.3) 100%);
        }
        .trend-panel .trend-body {
            padding: 28px;
        }
        .trend-panel .trend-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .trend-panel .trend-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 0.98rem;
            font-weight: 650;
            color: var(--text-primary);
            text-align: left;
            transition: color var(--transition);
            background: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        .faq-answer p {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== RELATED LINKS ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            display: block;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: left;
            transition: all var(--transition);
            text-decoration: none;
        }
        .related-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .related-card .related-title {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .related-card .related-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CTA ========== */
        .cta-box {
            background: linear-gradient(135deg, rgba(155, 255, 87, 0.08) 0%, rgba(58, 181, 230, 0.06) 50%, rgba(255, 78, 43, 0.08) 100%);
            border: 1px solid rgba(155, 255, 87, 0.22);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px 40px;
            box-shadow: var(--shadow-glow);
        }
        .cta-box .cta-content {
            flex: 1;
            min-width: 280px;
        }
        .cta-box .cta-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-box .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
            flex-shrink: 0;
        }
        .cta-form input {
            width: 260px;
            flex-shrink: 1;
        }
        @media (max-width: 600px) {
            .cta-box {
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                width: 100%;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #070D0B;
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.87rem;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-sub {
            display: flex;
            gap: 8px;
        }
        .footer-sub input {
            height: 40px;
            font-size: 0.85rem;
            padding: 8px 14px;
            border-radius: 8px;
            flex: 1;
            min-width: 0;
        }
        .footer-sub .btn-sm {
            height: 40px;
            min-height: 40px;
            flex-shrink: 0;
            border-radius: 8px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-sub {
                flex-direction: column;
            }
        }

        /* ========== RESPONSIVE NAV ========== */
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
        }

        /* ========== MISC ========== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .divider {
            border: none;
            border-top: 1px solid var(--border-subtle);
            margin: 0;
        }

/* roulang page: category3 */
:root {
            --primary: #9BFF57;
            --primary-soft: rgba(155, 255, 87, 0.18);
            --accent: #FF4E2B;
            --accent-soft: rgba(255, 78, 43, 0.18);
            --data-cyan: #3AB5E6;
            --data-cyan-soft: rgba(58, 181, 230, 0.16);
            --bg-base: #0A1210;
            --bg-card: #0E1714;
            --bg-elevated: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(10, 18, 16, 0.88);
            --text-primary: #F2F6F4;
            --text-secondary: rgba(242, 246, 244, 0.72);
            --text-muted: rgba(242, 246, 244, 0.48);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(155, 255, 87, 0.5);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(155, 255, 87, 0.18);
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", "Segoe UI", sans-serif;
            --spacing-section: 72px;
            --max-width: 1200px;
            --transition: 0.24s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 52px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --spacing-section: 40px;
            }
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-primary);
            background: var(--bg-base);
            overflow-x: hidden;
            font-variant-numeric: tabular-nums;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--primary);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

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

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        input {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            padding: 12px 16px;
            height: 48px;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }

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

        input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-soft);
            outline: none;
        }

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

        section {
            padding: var(--spacing-section) 0;
            position: relative;
        }

        section+section {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        section:nth-of-type(even) {
            background: rgba(255, 255, 255, 0.012);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 650;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 650;
            font-size: 0.95rem;
            border-radius: 999px;
            padding: 14px 28px;
            min-height: 48px;
            transition: all var(--transition);
            line-height: 1.2;
            letter-spacing: 0.02em;
            text-decoration: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, #FF5E3A 0%, #FF4E2B 60%, #E63E1A 100%);
            color: #FFFFFF;
            box-shadow: 0 8px 20px rgba(255, 78, 43, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 78, 43, 0.5);
            color: #FFFFFF;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 78, 43, 0.3);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--data-cyan);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(58, 181, 230, 0.5);
            color: var(--data-cyan);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: none;
            color: var(--text-secondary);
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
            border-radius: 0;
            min-height: auto;
        }

        .btn-ghost:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .btn-sm {
            padding: 10px 20px;
            min-height: 40px;
            font-size: 0.85rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 18, 16, 0.55);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: #0A1210EE;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            transition: color var(--transition);
        }

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

        .logo-icon {
            width: 32px;
            height: 32px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.93rem;
            font-weight: 550;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-desktop li a:hover {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.08);
        }

        .nav-desktop li a.active {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.12);
            font-weight: 650;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition);
            flex-shrink: 0;
        }

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

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        /* ===== Mobile Drawer ===== */
        .mobile-drawer {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 18, 16, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            display: none;
            flex-direction: column;
            padding: 24px;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-drawer a {
            display: block;
            padding: 16px 20px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--primary);
        }

        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.1);
            border-color: rgba(155, 255, 87, 0.25);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-muted);
            flex-shrink: 0;
        }

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

        /* ===== Category Hero ===== */
        .category-hero {
            padding: 130px 0 48px;
            min-height: 40vh;
            max-height: 420px;
            display: flex;
            align-items: flex-end;
            position: relative;
            overflow: hidden;
            background-position: center center;
            background-size: cover;
            background-repeat: no-repeat;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 18, 16, 0.72);
            z-index: 0;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .category-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.75;
        }

        /* ===== Filter Bar ===== */
        .filter-section {
            padding: 24px 0;
            background: rgba(255, 255, 255, 0.02);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            position: sticky;
            top: 72px;
            z-index: 50;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: 999px;
            padding: 8px 12px;
        }

        .filter-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            white-space: nowrap;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 550;
            color: var(--text-secondary);
            border-radius: 999px;
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            background: rgba(255, 255, 255, 0.02);
        }

        .filter-btn:hover {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.08);
        }

        .filter-btn.active {
            color: var(--primary);
            background: rgba(155, 255, 87, 0.12);
            border-color: rgba(155, 255, 87, 0.3);
            font-weight: 650;
        }

        .filter-sep {
            width: 1px;
            height: 20px;
            background: var(--border-subtle);
            flex-shrink: 0;
        }

        /* ===== Summary Cards ===== */
        .summary-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 0.9fr;
            gap: 20px;
            margin-top: 8px;
        }

        .summary-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        .summary-card .card-cover {
            width: 100%;
            height: 120px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
        }

        .summary-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .summary-card .stat-value {
            font-family: var(--font-num);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .summary-card .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .summary-card .stat-detail {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .summary-card .trend-up {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 10px;
            border-radius: 999px;
            margin-top: 8px;
        }

        .summary-card .trend-down {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 10px;
            border-radius: 999px;
            margin-top: 8px;
        }

        /* ===== Team List Cards ===== */
        .team-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 8px;
        }

        .team-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

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

        .team-card .team-thumb {
            width: 80px;
            height: 80px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            object-fit: cover;
            border: 1px solid var(--border-subtle);
        }

        .team-card .team-info {
            flex: 1;
            min-width: 0;
        }

        .team-card .team-name {
            font-size: 1.1rem;
            font-weight: 650;
            margin-bottom: 6px;
            line-height: 1.35;
        }

        .team-card .team-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .team-card .team-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .data-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.78rem;
            font-weight: 550;
            padding: 5px 12px;
            border-radius: 999px;
            background: rgba(58, 181, 230, 0.12);
            color: var(--data-cyan);
            border: 1px solid rgba(58, 181, 230, 0.2);
            white-space: nowrap;
        }

        .data-tag.warm {
            background: rgba(255, 78, 43, 0.12);
            color: #FF8A6E;
            border-color: rgba(255, 78, 43, 0.2);
        }

        .data-tag.green {
            background: rgba(155, 255, 87, 0.12);
            color: var(--primary);
            border-color: rgba(155, 255, 87, 0.2);
        }

        .team-card .team-action {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 8px;
        }

        .team-card .rating {
            font-family: var(--font-num);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }

        .team-card .rating-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .view-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--data-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

        .view-link:hover {
            color: var(--primary);
        }

        /* ===== Trend Panel ===== */
        .trend-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .trend-panel .trend-cover {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 20px;
            border: 1px solid var(--border-subtle);
        }

        .trend-panel h3 {
            font-size: 1.2rem;
            font-weight: 650;
            margin-bottom: 12px;
        }

        .trend-panel .trend-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 800px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin-top: 8px;
        }

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

        .faq-item:hover {
            border-color: rgba(155, 255, 87, 0.3);
        }

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

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

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

        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            padding-bottom: 18px;
        }

        /* ===== Related Categories ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .related-card .rel-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: var(--primary-soft);
            color: var(--primary);
        }

        .related-card .rel-icon svg {
            width: 20px;
            height: 20px;
        }

        .related-card h4 {
            font-size: 0.95rem;
            font-weight: 650;
            margin-bottom: 4px;
        }

        .related-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== CTA Card ===== */
        .cta-card {
            background: rgba(10, 18, 16, 0.92);
            border: 1px solid rgba(155, 255, 87, 0.25);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-glow);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(155, 255, 87, 0.06);
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-card .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.75;
            max-width: 560px;
        }

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

        .cta-form input {
            flex: 1;
            min-width: 240px;
            max-width: 380px;
        }

        .cta-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070D0B;
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 650;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

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

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer-sub {
            display: flex;
            gap: 8px;
        }

        .footer-sub input {
            flex: 1;
            height: 40px;
            padding: 8px 14px;
            font-size: 0.85rem;
            min-width: 0;
        }

        .footer-sub .btn {
            height: 40px;
            min-height: 40px;
            padding: 8px 18px;
            font-size: 0.82rem;
            flex-shrink: 0;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

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

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

            .filter-bar {
                border-radius: var(--radius-md);
                gap: 10px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-desktop {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .category-hero {
                padding: 100px 0 40px;
                min-height: 35vh;
                max-height: 380px;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .category-hero .hero-desc {
                font-size: 0.95rem;
            }

            .filter-section {
                top: 64px;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                border-radius: var(--radius-md);
            }

            .filter-sep {
                width: 100%;
                height: 1px;
            }

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

            .team-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 18px;
            }

            .team-card .team-thumb {
                width: 100%;
                height: 160px;
            }

            .team-card .team-action {
                flex-direction: row;
                align-items: center;
                gap: 16px;
                width: 100%;
                justify-content: space-between;
            }

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

            .cta-card {
                padding: 28px 20px;
            }

            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-form input {
                max-width: none;
            }

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

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

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .category-hero {
                padding: 88px 0 32px;
            }

            .category-hero h1 {
                font-size: 1.4rem;
            }

            .summary-card {
                padding: 18px;
            }

            .summary-card .stat-value {
                font-size: 1.8rem;
            }

            .team-card {
                padding: 16px;
            }

            .team-card .team-thumb {
                height: 120px;
            }

            .trend-panel {
                padding: 20px 16px;
            }

            .cta-card {
                padding: 24px 16px;
            }

            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category4 */
:root {
  --primary: #9BFF57;
  --primary-soft: rgba(155, 255, 87, 0.18);
  --accent: #FF4E2B;
  --accent-soft: rgba(255, 78, 43, 0.18);
  --data-cyan: #3AB5E6;
  --data-cyan-soft: rgba(58, 181, 230, 0.16);
  --bg-base: #0A1210;
  --bg-card: #0E1714;
  --bg-elevated: rgba(255, 255, 255, 0.04);
  --bg-glass: rgba(10, 18, 16, 0.88);
  --text-primary: #F2F6F4;
  --text-secondary: rgba(242, 246, 244, 0.72);
  --text-muted: rgba(242, 246, 244, 0.48);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(155, 255, 87, 0.5);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(155, 255, 87, 0.18);
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "Segoe UI", sans-serif;
  --spacing-section: 56px;
  --max-width: 1200px;
  --transition: 0.24s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
  background: var(--bg-base);
  overflow-x: hidden;
  font-variant-numeric: tabular-nums;
  min-height: 100vh;
}
a {
  color: var(--data-cyan);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary);
}
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
input {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  padding: 12px 16px;
  height: 48px;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  font-size: 0.95rem;
}
input::placeholder {
  color: var(--text-muted);
}
input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  outline: none;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
section {
  padding: var(--spacing-section) 0;
  position: relative;
}
section + section {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.85;
  margin-bottom: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 650;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 14px 28px;
  min-height: 48px;
  transition: all var(--transition);
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #FF5E3A 0%, #FF4E2B 60%, #E63E1A 100%);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(255, 78, 43, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 78, 43, 0.5);
  color: #FFFFFF;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(255, 78, 43, 0.3);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--data-cyan);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--data-cyan);
  color: var(--data-cyan);
  transform: translateY(-1px);
}
.btn-sm {
  padding: 10px 20px;
  min-height: 40px;
  font-size: 0.85rem;
}
/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 18, 16, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: #0A1210EE;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.logo:hover {
  color: var(--primary);
}
.logo-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--primary);
}
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-desktop a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 550;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
}
.nav-desktop a:hover {
  color: var(--primary);
  background: rgba(155, 255, 87, 0.06);
}
.nav-desktop a.active {
  color: var(--primary);
  background: var(--primary-soft);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: border-color var(--transition);
}
.nav-toggle:hover {
  border-color: var(--primary);
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}
/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 80px 32px 40px;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  visibility: hidden;
}
.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}
.mobile-drawer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer a {
  font-size: 1.15rem;
  font-weight: 600;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  display: block;
  border: 1px solid transparent;
}
.mobile-drawer a:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-subtle);
}
.mobile-drawer a.active {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: rgba(155, 255, 87, 0.25);
}
.drawer-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: border-color var(--transition);
}
.drawer-close:hover {
  border-color: var(--primary);
}
/* Category page header */
.category-header {
  padding: 120px 0 48px;
  position: relative;
  background-image: url('/assets/images/484aa1d1393e285a.webp');
  background-size: cover;
  background-position: center;
  min-height: 40vh;
  display: flex;
  align-items: flex-end;
}
.category-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 18, 16, 0.45) 0%, rgba(10, 18, 16, 0.82) 60%, var(--bg-base) 100%);
}
.category-header .container {
  position: relative;
  z-index: 1;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.6;
}
.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}
.category-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.category-header .cat-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.75;
}
/* Filter toolbar */
.filter-toolbar {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: -28px;
  position: relative;
  z-index: 2;
  backdrop-filter: blur(8px);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.filter-tab {
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 550;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition);
  white-space: nowrap;
}
.filter-tab:hover {
  border-color: var(--data-cyan);
  color: var(--data-cyan);
}
.filter-tab.active {
  background: var(--data-cyan-soft);
  border-color: var(--data-cyan);
  color: var(--data-cyan);
}
/* Data summary cards */
.summary-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 16px;
}
.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
}
.summary-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
}
.summary-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  flex-shrink: 0;
}
.summary-card .stat-icon.orange {
  background: var(--accent-soft);
  color: var(--accent);
}
.summary-card .stat-icon.cyan {
  background: var(--data-cyan-soft);
  color: var(--data-cyan);
}
.summary-card .stat-info h3 {
  font-size: 0.85rem;
  font-weight: 550;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.summary-card .stat-info .stat-value {
  font-family: var(--font-num);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.summary-card .stat-info .stat-unit {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 4px;
}
/* Report list cards */
.report-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: all var(--transition);
}
.report-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.report-card .report-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-elevated);
}
.report-card .report-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.report-card .report-body {
  flex: 1;
  min-width: 0;
}
.report-card .report-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.report-card .report-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}
.report-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.tag.green {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: rgba(155, 255, 87, 0.25);
}
.tag.orange {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(255, 78, 43, 0.25);
}
.tag.cyan {
  color: var(--data-cyan);
  background: var(--data-cyan-soft);
  border-color: rgba(58, 181, 230, 0.25);
}
.report-card .report-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.report-card .report-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
/* Trend panel */
.trend-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.trend-visual {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 220px;
  border: 1px solid var(--border-subtle);
}
.trend-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 220px;
}
.trend-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}
.trend-info p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.trend-stats {
  display: flex;
  gap: 24px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.trend-stat {
  text-align: center;
}
.trend-stat .t-val {
  font-family: var(--font-num);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--data-cyan);
  line-height: 1.2;
}
.trend-stat .t-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}
/* FAQ */
.faq-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: var(--border-hover);
}
.faq-question {
  padding: 20px 22px;
  font-size: 0.98rem;
  font-weight: 650;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.faq-question .faq-icon {
  font-size: 1.2rem;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 22px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  display: none;
}
.faq-item.open .faq-answer {
  display: block;
}
/* Related categories */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all var(--transition);
  text-decoration: none;
}
.related-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.related-card .rel-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  flex-shrink: 0;
}
.related-card .rel-info h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.related-card .rel-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
/* CTA strip */
.cta-strip {
  background: linear-gradient(135deg, rgba(155, 255, 87, 0.08) 0%, rgba(10, 18, 16, 0.95) 60%);
  border: 1px solid rgba(155, 255, 87, 0.18);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-strip h3 {
  font-size: 1.3rem;
  font-weight: 750;
  margin-bottom: 6px;
  line-height: 1.35;
}
.cta-strip p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.7;
}
.cta-form {
  display: flex;
  gap: 10px;
  flex: 1;
  min-width: 280px;
  max-width: 440px;
}
.cta-form input {
  flex: 1;
}
/* Footer */
.site-footer {
  background: #070D0B;
  padding: 56px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 32px;
  margin-bottom: 36px;
}
.footer-brand .logo {
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-sub {
  display: flex;
  gap: 8px;
  flex-direction: column;
}
.footer-sub input {
  height: 44px;
  font-size: 0.88rem;
}
.footer-sub .btn {
  height: 44px;
  min-height: 44px;
  font-size: 0.85rem;
}
.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
/* Responsive */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .trend-panel {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .summary-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .header-inner {
    height: 60px;
  }
  section {
    padding: 44px 0;
  }
  .category-header {
    padding: 100px 0 40px;
    min-height: 32vh;
  }
  .filter-toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
  }
  .summary-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .summary-card {
    padding: 16px 18px;
  }
  .report-card {
    flex-direction: column;
    padding: 14px;
  }
  .report-card .report-thumb {
    width: 100%;
    height: 140px;
  }
  .faq-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .cta-strip {
    flex-direction: column;
    padding: 24px;
  }
  .cta-form {
    width: 100%;
    max-width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .category-header h1 {
    font-size: 1.6rem;
  }
  .trend-panel {
    padding: 16px;
  }
  .trend-stats {
    gap: 16px;
  }
  .cta-form {
    flex-direction: column;
  }
  .cta-form .btn {
    width: 100%;
  }
  section {
    padding: 36px 0;
  }
  .report-card .report-body h3 {
    font-size: 0.96rem;
  }
}