/* roulang page: index */
:root {
            --color-primary: #0E3B2E;
            --color-primary-dark: #0A2A21;
            --color-primary-light: #123B32;
            --color-accent: #D8FF3E;
            --color-accent-soft: #C9F24E;
            --color-emphasis: #FF6A3D;
            --color-bg: #F5F7F6;
            --color-bg-dark: #0E1E1A;
            --color-text: #111827;
            --color-text-secondary: #4B5563;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 59, 46, .04);
            --shadow-md: 0 10px 24px rgba(20, 60, 45, .06);
            --shadow-lg: 0 18px 44px rgba(14, 59, 46, .10);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-base: all .22s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            font-size: 16px;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 59, 46, .96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(216, 255, 62, .12);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--color-accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            letter-spacing: -1px;
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .82);
            border-radius: var(--radius-md);
            white-space: nowrap;
            letter-spacing: .2px;
            transition: var(--transition-base);
        }

        .nav-links li a:hover {
            color: #fff;
            background: rgba(216, 255, 62, .10);
        }

        .nav-links li a.active {
            color: var(--color-accent);
            background: rgba(216, 255, 62, .12);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            border-radius: 10px;
            letter-spacing: .3px;
            white-space: nowrap;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: #e0ff5e;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216, 255, 62, .25);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 106, 61, .15);
            color: #FF8A66;
            border-radius: 20px;
            border: 1px solid rgba(255, 106, 61, .25);
            white-space: nowrap;
        }

        .nav-badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-emphasis);
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .55;
                transform: scale(1.35);
            }
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            color: #fff;
            transition: var(--transition-base);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, .1);
        }

        .hamburger svg {
            width: 26px;
            height: 26px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
        }

        .mobile-menu {
            display: none;
            background: var(--color-primary-dark);
            border-top: 1px solid rgba(216, 255, 62, .1);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, .85);
            border-radius: 10px;
            transition: var(--transition-base);
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, .06);
            color: #fff;
        }

        .mobile-menu a.active {
            color: var(--color-accent);
            background: rgba(216, 255, 62, .08);
            font-weight: 600;
        }

        .mobile-menu-cta {
            display: block;
            margin-top: 12px;
            padding: 14px 20px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            text-align: center;
            border-radius: 12px;
            font-size: 16px;
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/c0f03fbd7c38ef90.webp');
            background-size: cover;
            background-position: center 30%;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 80px 0 72px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 42, 33, .93) 0%, rgba(14, 59, 46, .78) 45%, rgba(10, 42, 33, .88) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            width: 100%;
        }

        .hero-content {
            max-width: 680px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(216, 255, 62, .14);
            color: var(--color-accent);
            border: 1px solid rgba(216, 255, 62, .25);
            border-radius: 20px;
            letter-spacing: .3px;
        }

        .hero-tag.orange {
            background: rgba(255, 106, 61, .14);
            color: #FF8A66;
            border-color: rgba(255, 106, 61, .25);
        }

        .hero-title {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 18px;
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: var(--color-accent);
        }

        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, .78);
            line-height: 1.85;
            margin: 0 0 30px;
            max-width: 580px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: 12px;
            letter-spacing: .3px;
            cursor: pointer;
            transition: var(--transition-base);
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: #e0ff5e;
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(216, 255, 62, .28);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .25);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
        }

        .hero-score-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            max-width: 760px;
        }

        .hero-score-card {
            background: rgba(14, 30, 26, .75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 16px 18px;
            color: #fff;
            transition: var(--transition-base);
        }

        .hero-score-card:hover {
            border-color: rgba(216, 255, 62, .35);
            transform: translateY(-3px);
        }

        .hero-score-card .match-status {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 10px;
        }

        .hero-score-card .match-status .live-dot {
            color: var(--color-emphasis);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .hero-score-card .match-status .live-dot::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-emphasis);
            animation: pulse-dot 1.2s infinite;
        }

        .hero-score-card .match-teams {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .hero-score-card .match-score {
            font-size: 26px;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: 1px;
            font-variant-numeric: tabular-nums;
        }

        .hero-score-card .match-update {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
            margin-top: 6px;
        }

        /* Section Common */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: #fff;
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 44px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-accent);
            background: rgba(14, 59, 46, .08);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: .5px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-dark .section-tag {
            background: rgba(216, 255, 62, .12);
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
            margin: 0 0 14px;
            letter-spacing: -0.3px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin: 0;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, .7);
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            opacity: 0;
            transition: var(--transition-base);
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(216, 255, 62, .35);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(14, 59, 46, .07);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 10px;
            letter-spacing: -0.2px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            box-shadow: var(--shadow-lg);
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
            line-height: 1.1;
        }

        .stat-unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-accent);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-top: 6px;
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            margin: 0 0 18px;
            letter-spacing: -0.3px;
        }

        .brand-intro-text p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin: 0 0 16px;
        }

        .brand-intro-visual {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .brand-intro-visual img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }

        .brand-intro-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 42, 33, .55) 0%, transparent 60%);
            border-radius: var(--radius-xl);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .step-number {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-accent);
            font-weight: 800;
            font-size: 15px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            cursor: pointer;
            position: relative;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(216, 255, 62, .3);
        }

        .case-card-image {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .case-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 42, 33, .45) 0%, transparent 50%);
        }

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

        .case-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
            letter-spacing: -0.2px;
        }

        .case-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            transition: var(--transition-base);
        }

        .case-link:hover {
            color: var(--color-emphasis);
            gap: 8px;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .news-item:hover {
            transform: translateX(4px);
            border-color: rgba(216, 255, 62, .3);
            box-shadow: var(--shadow-md);
        }

        .news-date {
            font-size: 13px;
            color: var(--color-text-muted);
            white-space: nowrap;
            font-variant-numeric: tabular-nums;
            min-width: 80px;
        }

        .news-title-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            flex: 1;
        }

        .news-item:hover .news-title-link {
            color: var(--color-emphasis);
        }

        .news-arrow {
            color: var(--color-text-muted);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* Channel Entrance */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .channel-card-link {
            display: block;
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-sm);
            text-align: left;
        }

        .channel-card-link:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(216, 255, 62, .35);
        }

        .channel-card-link .channel-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(14, 59, 46, .07);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            transition: var(--transition-base);
        }

        .channel-card-link:hover .channel-icon {
            background: var(--color-accent);
        }

        .channel-card-link h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
        }

        .channel-card-link p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 10px;
        }

        .channel-card-link .channel-enter {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .channel-card-link:hover .channel-enter {
            color: var(--color-emphasis);
        }

        /* Topic / Scene Section */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 240px;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            transition: var(--transition-base);
            box-shadow: var(--shadow-md);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .topic-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 42, 33, .85) 0%, rgba(10, 42, 33, .2) 60%, transparent 100%);
        }

        .topic-card-content {
            position: relative;
            z-index: 2;
            padding: 20px 22px;
            color: #fff;
        }

        .topic-card-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
            color: #fff;
        }

        .topic-card-content p {
            font-size: 13px;
            color: rgba(255, 255, 255, .72);
            margin: 0;
            line-height: 1.7;
        }

        /* Partners / Media */
        .partner-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
        }

        .partner-item {
            padding: 12px 24px;
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            transition: var(--transition-base);
        }

        .partner-item:hover {
            border-color: rgba(216, 255, 62, .4);
            color: var(--color-primary);
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(216, 255, 62, .3);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            transition: var(--transition-base);
            font-family: inherit;
        }

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

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--color-text-muted);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            display: none;
        }

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

        /* Security / Guarantee Strip */
        .guarantee-strip {
            background: #EEF1EF;
            border-radius: var(--radius-md);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .guarantee-strip .guarantee-icon {
            font-size: 22px;
            flex-shrink: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(216, 255, 62, .1);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -30px;
            width: 180px;
            height: 180px;
            background: rgba(216, 255, 62, .07);
            border-radius: 50%;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: -0.3px;
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            margin: 0 0 26px;
            line-height: 1.8;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 2;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .2);
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 15px;
            transition: var(--transition-base);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, .45);
        }

        .cta-form input:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, .15);
            outline: none;
        }

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

        /* Footer */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 56px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: .5px;
        }

        .footer-brand h3 span {
            color: var(--color-accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: .3px;
        }

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

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            padding: 20px 0 28px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            margin: 0;
            line-height: 1.7;
        }

        .footer-bottom .domain {
            color: rgba(255, 255, 255, .5);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-score-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta .nav-cta-btn {
                display: none;
            }
            .nav-badge {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .hero {
                min-height: auto;
                padding: 48px 0 56px;
            }
            .hero-title {
                font-size: 28px;
                letter-spacing: -0.2px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-score-cards {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .hero-score-card {
                padding: 14px 16px;
            }
            .service-grid,
            .channel-grid,
            .steps-grid,
            .case-grid,
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 24px 20px;
                gap: 16px;
            }
            .stat-number {
                font-size: 30px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-visual img {
                height: 220px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 14px 16px;
            }
            .news-date {
                min-width: auto;
            }
            .container {
                padding: 0 18px;
            }
            .topic-card {
                height: 190px;
            }
            .guarantee-strip {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 18px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 24px;
            }
            .btn {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .stats-bar {
                grid-template-columns: 1fr;
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 26px;
            }
            .section-title {
                font-size: 21px;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0E3B2E;
            --color-primary-dark: #0A2A21;
            --color-primary-light: #123B32;
            --color-accent: #D8FF3E;
            --color-accent-soft: #C9F24E;
            --color-emphasis: #FF6A3D;
            --color-bg: #F5F7F6;
            --color-bg-dark: #0E1E1A;
            --color-text: #111827;
            --color-text-secondary: #4B5563;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 59, 46, .04);
            --shadow-md: 0 10px 24px rgba(20, 60, 45, .06);
            --shadow-lg: 0 18px 44px rgba(14, 59, 46, .10);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-base: all .22s ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            font-size: 16px;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition-base); }
        a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input { font-family: inherit; font-size: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* Header & Navigation */
        .site-header { position: sticky; top: 0; z-index: 50; background: rgba(14, 59, 46, .96); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(216, 255, 62, .12); transition: var(--transition-base); }
        .site-header.scrolled { box-shadow: 0 6px 24px rgba(0, 0, 0, .18); }
        .nav-container { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
        .nav-logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
        .nav-logo-icon { width: 34px; height: 34px; background: var(--color-accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px; color: var(--color-primary); letter-spacing: -1px; }
        .nav-logo-text { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: .5px; white-space: nowrap; }
        .nav-logo-text span { color: var(--color-accent); }
        .nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
        .nav-links li a { display: flex; align-items: center; gap: 6px; padding: 8px 16px; font-size: 15px; font-weight: 500; color: rgba(255, 255, 255, .82); border-radius: var(--radius-md); white-space: nowrap; letter-spacing: .2px; transition: var(--transition-base); }
        .nav-links li a:hover { color: #fff; background: rgba(216, 255, 62, .10); }
        .nav-links li a.active { color: var(--color-accent); background: rgba(216, 255, 62, .12); font-weight: 600; }
        .nav-cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .nav-cta-btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; background: var(--color-accent); color: var(--color-primary); font-weight: 700; font-size: 14px; border-radius: 10px; letter-spacing: .3px; white-space: nowrap; transition: var(--transition-base); border: none; cursor: pointer; }
        .nav-cta-btn:hover { background: #e0ff5e; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(216, 255, 62, .25); }
        .nav-cta-btn:active { transform: translateY(0); box-shadow: none; }
        .nav-badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; font-size: 12px; font-weight: 600; background: rgba(255, 106, 61, .15); color: #FF8A66; border-radius: 20px; border: 1px solid rgba(255, 106, 61, .25); white-space: nowrap; }
        .nav-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-emphasis); animation: pulse-dot 1.8s infinite; }
        .hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }

        @keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(1.4); } }

        /* Breadcrumb */
        .breadcrumb { background: #fff; border-bottom: 1px solid var(--color-border-light); padding: 14px 0; font-size: 14px; color: var(--color-text-muted); }
        .breadcrumb .container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .breadcrumb a { color: var(--color-text-secondary); }
        .breadcrumb a:hover { color: var(--color-primary); }
        .breadcrumb .sep { color: var(--color-text-muted); }

        /* Hero sections */
        .section { padding: 64px 0; }
        .section-alt { background: #fff; }
        .section-dark { background: var(--color-bg-dark); }
        .section-heading { font-size: 28px; font-weight: 800; letter-spacing: .5px; line-height: 1.35; color: var(--color-primary); margin-bottom: 16px; }
        .section-heading span { color: var(--color-emphasis); }
        .section-desc { font-size: 16px; color: var(--color-text-secondary); max-width: 720px; margin-bottom: 32px; }

        /* Buttons */
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 12px; font-weight: 700; font-size: 15px; border: none; cursor: pointer; transition: var(--transition-base); }
        .btn-primary { background: var(--color-primary); color: #fff; }
        .btn-primary:hover { background: var(--color-primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); }
        .btn-accent { background: var(--color-accent); color: var(--color-primary); }
        .btn-accent:hover { background: #e0ff5e; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(216, 255, 62, .25); }
        .btn-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text-secondary); }
        .btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(14, 59, 46, .04); }

        /* Cards */
        .card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: var(--transition-base); overflow: hidden; }
        .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--color-accent-soft); }
        .card-image { aspect-ratio: 16/9; overflow: hidden; background: #eef2f0; }
        .card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
        .card:hover .card-image img { transform: scale(1.03); }
        .card-body { padding: 20px; }
        .card-title { font-size: 18px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; line-height: 1.4; }
        .card-text { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

        /* Tags */
        .tag { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; background: rgba(216, 255, 62, .15); color: var(--color-primary); border: 1px solid rgba(216, 255, 62, .25); }
        .tag-orange { background: rgba(255, 106, 61, .1); color: var(--color-emphasis); border-color: rgba(255, 106, 61, .2); }
        .tag-dark { background: rgba(14, 59, 46, .06); color: var(--color-primary); border-color: rgba(14, 59, 46, .12); }

        /* Filter bar */
        .filter-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
        .filter-pill { padding: 8px 16px; border-radius: 20px; font-size: 14px; font-weight: 500; background: #fff; border: 1px solid var(--color-border); color: var(--color-text-secondary); cursor: pointer; transition: var(--transition-base); }
        .filter-pill:hover { border-color: var(--color-primary); color: var(--color-primary); }
        .filter-pill.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

        /* List cards */
        .review-list-item { display: flex; gap: 20px; padding: 20px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); transition: var(--transition-base); margin-bottom: 16px; }
        .review-list-item:hover { border-color: var(--color-accent-soft); box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .review-list-thumb { flex-shrink: 0; width: 200px; aspect-ratio: 16/9; border-radius: var(--radius-md); overflow: hidden; background: #eef2f0; }
        .review-list-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .review-list-content { flex: 1; }
        .review-list-title { font-size: 18px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
        .review-list-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

        /* Table */
        .data-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--color-border); }
        .data-table th { background: var(--color-primary); color: #fff; padding: 14px 16px; font-weight: 600; font-size: 14px; text-align: left; }
        .data-table td { padding: 14px 16px; border-bottom: 1px solid var(--color-border-light); font-size: 14px; color: var(--color-text-secondary); }
        .data-table tr:last-child td { border-bottom: none; }
        .data-table tr:hover td { background: rgba(216, 255, 62, .05); }

        /* FAQ */
        .faq-item { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
        .faq-question { width: 100%; padding: 18px 20px; background: none; border: none; cursor: pointer; text-align: left; font-size: 16px; font-weight: 600; color: var(--color-primary); display: flex; justify-content: space-between; align-items: center; }
        .faq-question:hover { color: var(--color-primary-light); }
        .faq-question .icon { transition: transform .2s; }
        .faq-question.open .icon { transform: rotate(45deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; }
        .faq-answer.open { max-height: 400px; }
        .faq-answer-inner { padding: 0 20px 20px; color: var(--color-text-secondary); font-size: 14px; }

        /* Stats line */
        .stat-line { display: flex; gap: 4px; align-items: baseline; font-weight: 700; color: var(--color-primary); font-size: 24px; }
        .stat-line .small { font-size: 14px; font-weight: 500; color: var(--color-text-muted); }

        /* Footer */
        .site-footer { background: var(--color-bg-dark); color: rgba(255, 255, 255, .8); padding: 48px 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
        .footer-brand h3 { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; }
        .footer-brand h3 span { color: var(--color-accent); }
        .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, .65); }
        .footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a { color: rgba(255, 255, 255, .7); font-size: 14px; }
        .footer-col ul a:hover { color: var(--color-accent); }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 20px; font-size: 13px; color: rgba(255, 255, 255, .55); text-align: center; }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .review-list-item { flex-direction: column; }
            .review-list-thumb { width: 100%; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--color-primary); flex-direction: column; padding: 16px 24px; gap: 8px; border-top: 1px solid rgba(216, 255, 62, .12); box-shadow: var(--shadow-lg); }
            .nav-links.mobile-open { display: flex; }
            .nav-links li { width: 100%; }
            .nav-links li a { padding: 12px 16px; width: 100%; }
            .hamburger { display: block; color: #fff; font-size: 24px; }
            .nav-badge { display: none; }
            .section { padding: 40px 0; }
            .section-heading { font-size: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .container { padding: 0 16px; }
            .data-table { min-width: 600px; overflow-x: auto; display: block; }
            .filter-bar { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; }
        }
        @media (max-width: 520px) {
            .nav-cta-btn { padding: 8px 16px; font-size: 13px; }
            .section-heading { font-size: 22px; }
            .review-list-title { font-size: 16px; }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0E3B2E;
            --color-primary-dark: #0A2A21;
            --color-primary-light: #123B32;
            --color-accent: #D8FF3E;
            --color-accent-soft: #C9F24E;
            --color-emphasis: #FF6A3D;
            --color-bg: #F5F7F6;
            --color-bg-dark: #0E1E1A;
            --color-text: #111827;
            --color-text-secondary: #4B5563;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 59, 46, .04);
            --shadow-md: 0 10px 24px rgba(20, 60, 45, .06);
            --shadow-lg: 0 18px 44px rgba(14, 59, 46, .10);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-base: all .22s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            font-size: 16px;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 59, 46, .96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(216, 255, 62, .12);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--color-accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            letter-spacing: -1px;
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .82);
            border-radius: var(--radius-md);
            white-space: nowrap;
            letter-spacing: .2px;
            transition: var(--transition-base);
        }

        .nav-links li a:hover {
            color: #fff;
            background: rgba(216, 255, 62, .10);
        }

        .nav-links li a.active {
            color: var(--color-accent);
            background: rgba(216, 255, 62, .12);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            border-radius: 10px;
            letter-spacing: .3px;
            white-space: nowrap;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: #e0ff5e;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216, 255, 62, .25);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 106, 61, .15);
            color: #FF8A66;
            border-radius: 20px;
            border: 1px solid rgba(255, 106, 61, .25);
            white-space: nowrap;
        }

        .nav-badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-emphasis);
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .5; transform: scale(1.4); }
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            flex-direction: column;
            gap: 5px;
            align-items: flex-end;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .hamburger span:nth-child(2) {
            width: 16px;
        }

        .hamburger:hover span {
            background: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb .separator {
            color: #CBD5E1;
        }

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

        /* Page Head */
        .page-head-section {
            background: #fff;
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--color-border-light);
        }

        .page-head-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .page-head-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: #F0FDF4;
            color: #166534;
            font-size: 13px;
            font-weight: 600;
            border-radius: 30px;
            border: 1px solid #D1FAE5;
            margin-bottom: 16px;
        }

        .page-head-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin: 0 0 16px;
            letter-spacing: -1px;
        }

        .page-head-summary {
            font-size: 17px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin: 0 0 22px;
            max-width: 750px;
        }

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

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-right: 4px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: #F8FAF9;
            border: 1px solid var(--color-border);
            border-radius: 30px;
            cursor: default;
            transition: var(--transition-base);
        }

        .filter-chip:hover {
            border-color: var(--color-accent-soft);
            background: #F7FEE7;
            color: var(--color-primary);
        }

        .filter-chip.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }

        .page-head-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--color-bg-dark);
            min-height: 200px;
        }

        .page-head-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* Section Common */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: #FFFFFF;
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: #E5E7EB;
        }

        .section-heading {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            margin: 0 0 12px;
        }

        .section-dark .section-heading {
            color: #fff;
        }

        .section-sub {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 780px;
            margin: 0 0 32px;
        }

        .section-dark .section-sub {
            color: #9CA3AF;
        }

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

        .stat-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #D8FF3E;
        }

        .stat-card-icon {
            width: 44px;
            height: 44px;
            background: #F0FDF4;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            color: var(--color-primary);
        }

        .stat-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }

        .stat-card-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0 0 12px;
        }

        .stat-card-meta {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .stat-card-meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent-soft);
        }

        /* Data Table */
        .data-table-section {
            background: #fff;
        }

        .table-wrap {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .table-scroll {
            overflow-x: auto;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 700px;
        }

        .data-table thead {
            background: var(--color-primary);
            color: #fff;
        }

        .data-table th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            white-space: nowrap;
            letter-spacing: .3px;
        }

        .data-table tbody tr {
            border-bottom: 1px solid var(--color-border-light);
            transition: var(--transition-base);
        }

        .data-table tbody tr:hover {
            background: #F9FAFB;
        }

        .data-table td {
            padding: 12px 16px;
            color: var(--color-text-secondary);
            white-space: nowrap;
        }

        .data-table td.score-cell {
            font-weight: 700;
            color: var(--color-text);
            font-variant-numeric: tabular-nums;
        }

        .data-table .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            background: #F0FDF4;
            color: #166534;
        }

        .data-table .tag.update {
            background: #FEF3C7;
            color: #92400E;
        }

        .data-table .tag.pending {
            background: #FEF3F2;
            color: #991B1B;
        }

        /* Explanation Cards */
        .explanation-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .explanation-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .explanation-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 12px;
        }

        .explanation-card p,
        .explanation-card ul {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.85;
        }

        .explanation-card ul {
            padding-left: 20px;
            margin: 0;
        }

        .explanation-card li {
            margin-bottom: 6px;
        }

        .explanation-card li::marker {
            color: var(--color-accent-soft);
        }

        /* History Articles */
        .history-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .history-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .history-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .history-card-img {
            height: 160px;
            overflow: hidden;
            background: var(--color-bg-dark);
        }

        .history-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .history-card:hover .history-card-img img {
            transform: scale(1.03);
        }

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

        .history-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.45;
        }

        .history-card-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0 0 12px;
            line-height: 1.7;
            flex: 1;
        }

        .history-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .history-card-link:hover {
            color: var(--color-emphasis);
        }

        /* Bottom CTA */
        .bottom-cta-section {
            background: var(--color-bg-dark);
            padding: 64px 0;
            color: #fff;
        }

        .cta-inner {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 32px;
            align-items: center;
        }

        .bottom-cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 12px;
            letter-spacing: -0.8px;
        }

        .bottom-cta-desc {
            font-size: 16px;
            color: #CBD5E1;
            margin: 0 0 20px;
        }

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

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            border-radius: 10px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .cta-btn:hover {
            background: #e0ff5e;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(216, 255, 62, .2);
        }

        .cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 10px;
            border: 1px solid #475569;
            transition: var(--transition-base);
        }

        .cta-btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* Footer */
        .site-footer {
            background: #0A1A15;
            color: #CBD5E1;
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: .5px;
        }

        .footer-brand h3 span {
            color: var(--color-accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: #94A3B8;
        }

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

        .footer-bottom {
            border-top: 1px solid #1E2E28;
            padding-top: 22px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #64748B;
            margin: 0;
        }

        .footer-bottom .domain {
            font-size: 13px;
            color: #64748B;
        }

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

            .page-head-img-wrap {
                order: -1;
            }

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

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

            .cta-inner {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .nav-container {
                flex-wrap: wrap;
                min-height: 64px;
                padding: 12px 0;
            }

            .nav-logo-text {
                font-size: 18px;
            }

            .hamburger {
                display: flex;
            }

            .nav-links,
            .nav-cta {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                margin-top: 8px;
            }

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

            .nav-links li a {
                padding: 12px 16px;
                justify-content: flex-start;
            }

            .nav-cta-btn {
                justify-content: center;
                width: 100%;
            }

            .nav-badge {
                display: none;
            }

            .page-head-title {
                font-size: 1.9rem;
            }

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

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

            .section {
                padding: 48px 0;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-head-title {
                font-size: 1.6rem;
            }

            .page-head-summary {
                font-size: 15px;
            }

            .filter-bar {
                gap: 6px;
            }

            .filter-chip {
                padding: 4px 10px;
                font-size: 12px;
            }

            .section-heading {
                font-size: 1.4rem;
            }

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

            .data-table th,
            .data-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0E3B2E;
            --color-primary-dark: #0A2A21;
            --color-primary-light: #123B32;
            --color-accent: #D8FF3E;
            --color-accent-soft: #C9F24E;
            --color-emphasis: #FF6A3D;
            --color-bg: #F5F7F6;
            --color-bg-dark: #0E1E1A;
            --color-text: #111827;
            --color-text-secondary: #4B5563;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 59, 46, .04);
            --shadow-md: 0 10px 24px rgba(20, 60, 45, .06);
            --shadow-lg: 0 18px 44px rgba(14, 59, 46, .10);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-base: all .22s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            font-size: 16px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 59, 46, .96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(216, 255, 62, .12);
            transition: var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--color-accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .nav-logo-text span {
            color: var(--color-accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .82);
            border-radius: var(--radius-md);
            white-space: nowrap;
            letter-spacing: .2px;
            transition: var(--transition-base);
        }
        .nav-links li a:hover {
            color: #fff;
            background: rgba(216, 255, 62, .10);
        }
        .nav-links li a.active {
            color: var(--color-accent);
            background: rgba(216, 255, 62, .12);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            border-radius: 10px;
            letter-spacing: .3px;
            white-space: nowrap;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .nav-cta-btn:hover {
            background: #e0ff5e;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216, 255, 62, .25);
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 106, 61, .15);
            color: #FF8A66;
            border-radius: 20px;
            border: 1px solid rgba(255, 106, 61, .25);
            white-space: nowrap;
        }
        .nav-badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-emphasis);
            animation: pulse-dot 1.8s infinite;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            margin: 5px 0;
            transition: var(--transition-base);
        }
        .hamburger.is-open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.is-open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.is-open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: var(--color-primary-dark);
            border-top: 1px solid rgba(216, 255, 62, .12);
            padding: 12px 24px 20px;
        }
        .mobile-menu.is-open {
            display: block;
        }
        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .mobile-menu ul li a {
            display: block;
            padding: 14px 0;
            color: rgba(255, 255, 255, .86);
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition-base);
        }
        .mobile-menu ul li a:hover,
        .mobile-menu ul li a.active {
            color: var(--color-accent);
        }
        .mobile-menu .mobile-cta {
            margin-top: 16px;
        }
        .mobile-menu .mobile-cta .nav-cta-btn {
            width: 100%;
            justify-content: center;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .4;
                transform: scale(1.4);
            }
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            color: #D1D5DB;
        }
        .breadcrumb-current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Category Header */
        .category-header {
            background: var(--color-primary-dark);
            position: relative;
            overflow: hidden;
            padding: 52px 0 48px;
        }
        .category-header::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(216, 255, 62, .12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .category-header-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(216, 255, 62, .14);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid rgba(216, 255, 62, .22);
        }
        .category-header h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: 1px;
        }
        .category-header h1 .highlight {
            color: var(--color-accent);
        }
        .category-header-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            max-width: 760px;
            margin: 0 0 20px;
            line-height: 1.85;
        }
        .category-header-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
        }
        .category-header-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-header-meta .meta-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* Section Common */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: #fff;
        }
        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .section-heading-left h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 8px;
            letter-spacing: .5px;
        }
        .section-heading-left p {
            font-size: 15px;
            color: var(--color-text-secondary);
            margin: 0;
            max-width: 600px;
            line-height: 1.75;
        }
        .section-heading-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .section-heading-link:hover {
            color: var(--color-emphasis);
            gap: 8px;
        }
        .section-dark .section-heading-left h2 {
            color: #fff;
        }
        .section-dark .section-heading-left p {
            color: rgba(255, 255, 255, .65);
        }

        /* Filter Toolbar */
        .filter-toolbar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 14px 18px;
            box-shadow: var(--shadow-sm);
        }
        .filter-toolbar-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            white-space: nowrap;
            margin-right: 4px;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            user-select: none;
        }
        .filter-chip:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .filter-chip.is-active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .filter-chip .chip-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 20px;
            height: 20px;
            padding: 0 6px;
            background: rgba(255, 255, 255, .2);
            border-radius: 10px;
            font-size: 11px;
            margin-left: 6px;
        }

        /* Rule Cards */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }
        .rule-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .rule-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-primary);
            opacity: 0;
            transition: var(--transition-base);
        }
        .rule-card:hover {
            border-color: rgba(14, 59, 46, .25);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .rule-card:hover::before {
            opacity: 1;
        }
        .rule-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(14, 59, 46, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            font-weight: 700;
            color: var(--color-primary);
        }
        .rule-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            letter-spacing: .3px;
        }
        .rule-card .rule-card-tag {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(216, 255, 62, .35);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            margin-bottom: 10px;
        }
        .rule-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.75;
        }

        /* Steps Timeline */
        .steps-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }
        .step-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            position: relative;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-number {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-accent);
            font-weight: 800;
            font-size: 16px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.75;
        }

        /* Glossary Table */
        .glossary-table-wrap {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .glossary-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .glossary-table th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            text-align: left;
            padding: 14px 18px;
            font-size: 14px;
            letter-spacing: .3px;
        }
        .glossary-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-secondary);
            vertical-align: top;
            line-height: 1.7;
        }
        .glossary-table tr:last-child td {
            border-bottom: none;
        }
        .glossary-table tr:hover td {
            background: rgba(216, 255, 62, .06);
        }
        .glossary-table td:first-child {
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
        }
        .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        /* Example Cards */
        .example-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        .example-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .example-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .example-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .example-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .example-card:hover .example-card-img img {
            transform: scale(1.05);
        }
        .example-card-body {
            padding: 18px 20px 20px;
        }
        .example-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
        }
        .example-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* Risk Notice */
        .risk-notice {
            background: linear-gradient(135deg, rgba(255, 106, 61, .08), rgba(255, 106, 61, .03));
            border: 1px solid rgba(255, 106, 61, .25);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .risk-notice-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 106, 61, .15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-emphasis);
            flex-shrink: 0;
            font-weight: 700;
        }
        .risk-notice-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }
        .risk-notice-content p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.75;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(14, 59, 46, .2);
        }
        .faq-item.is-open {
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 59, 46, .25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            transition: var(--transition-base);
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(14, 59, 46, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-primary);
            transition: var(--transition-base);
            font-weight: 700;
        }
        .faq-item.is-open .faq-question .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .faq-item.is-open .faq-answer {
            max-height: 300px;
        }

        /* Related Articles */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 18px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .related-card-img {
            height: 140px;
            overflow: hidden;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }
        .related-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-body h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
            line-height: 1.5;
        }
        .related-card-body p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0 0 10px;
            line-height: 1.6;
            flex: 1;
        }
        .related-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-base);
        }
        .related-card-link:hover {
            color: var(--color-emphasis);
            gap: 8px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-bg-dark);
            position: relative;
            overflow: hidden;
            padding: 64px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(216, 255, 62, .1), transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-box-left h2 {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            letter-spacing: .5px;
        }
        .cta-box-left h2 .highlight {
            color: var(--color-accent);
        }
        .cta-box-left p {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            margin: 0;
            max-width: 500px;
            line-height: 1.75;
        }
        .cta-box-right {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            border-radius: 10px;
            letter-spacing: .3px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-primary-cta:hover {
            background: #e0ff5e;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(216, 255, 62, .28);
        }
        .btn-primary-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 10px;
            letter-spacing: .3px;
            transition: var(--transition-base);
            border: 1px solid rgba(255, 255, 255, .25);
            cursor: pointer;
        }
        .btn-outline-cta:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(216, 255, 62, .06);
        }

        /* Footer */
        .site-footer {
            background: #0A1F1A;
            color: rgba(255, 255, 255, .7);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(216, 255, 62, .1);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: .5px;
        }
        .footer-brand h3 span {
            color: var(--color-accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin: 0;
            line-height: 1.75;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: .3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
            line-height: 1.7;
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-bottom .domain {
            color: rgba(255, 255, 255, .4);
            font-size: 12px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .steps-timeline {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links,
            .nav-cta .nav-badge {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .section {
                padding: 40px 0;
            }
            .section-sm {
                padding: 28px 0;
            }
            .category-header {
                padding: 36px 0 32px;
            }
            .category-header-desc {
                font-size: 14px;
            }
            .rules-grid {
                grid-template-columns: 1fr;
            }
            .steps-timeline {
                grid-template-columns: 1fr;
            }
            .example-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-box-right {
                width: 100%;
            }
            .btn-primary-cta,
            .btn-outline-cta {
                flex: 1;
                justify-content: center;
            }
            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .filter-toolbar {
                padding: 12px 14px;
                gap: 8px;
            }
            .filter-chip {
                padding: 5px 12px;
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .category-header-meta {
                gap: 12px;
                font-size: 12px;
            }
            .rule-card {
                padding: 18px;
            }
            .glossary-table th,
            .glossary-table td {
                padding: 10px 12px;
                font-size: 12px;
            }
            .risk-notice {
                flex-direction: column;
                padding: 16px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0E3B2E;
            --color-primary-dark: #0A2A21;
            --color-primary-light: #123B32;
            --color-accent: #D8FF3E;
            --color-accent-soft: #C9F24E;
            --color-emphasis: #FF6A3D;
            --color-bg: #F5F7F6;
            --color-bg-dark: #0E1E1A;
            --color-text: #111827;
            --color-text-secondary: #4B5563;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(14, 59, 46, .04);
            --shadow-md: 0 10px 24px rgba(20, 60, 45, .06);
            --shadow-lg: 0 18px 44px rgba(14, 59, 46, .10);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-base: all .22s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            font-size: 16px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 59, 46, .96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(216, 255, 62, .12);
            transition: var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--color-accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .nav-logo-text span {
            color: var(--color-accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .82);
            border-radius: var(--radius-md);
            white-space: nowrap;
            letter-spacing: .2px;
            transition: var(--transition-base);
        }
        .nav-links li a:hover {
            color: #fff;
            background: rgba(216, 255, 62, .10);
        }
        .nav-links li a.active {
            color: var(--color-accent);
            background: rgba(216, 255, 62, .12);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            border-radius: 10px;
            letter-spacing: .3px;
            white-space: nowrap;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .nav-cta-btn:hover {
            background: #e0ff5e;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216, 255, 62, .25);
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 106, 61, .15);
            color: #FF8A66;
            border-radius: 20px;
            border: 1px solid rgba(255, 106, 61, .25);
            white-space: nowrap;
        }
        .nav-badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-emphasis);
            animation: pulse-dot 1.8s infinite;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            margin: 5px 0;
            transition: var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: .3; }
        }

        /* Breadcrumb */
        .breadcrumb-nav {
            padding: 20px 0 0;
            font-size: 14px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: var(--transition-base);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            color: var(--color-text-muted);
            opacity: .5;
        }
        .breadcrumb-current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Page Header */
        .page-header {
            padding: 36px 0 28px;
            border-bottom: 1px solid var(--color-border);
        }
        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 12px;
            letter-spacing: .5px;
        }
        .page-header .lead {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            max-width: 780px;
            line-height: 1.85;
            margin: 0;
        }
        .page-header-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .page-header-tag {
            padding: 5px 13px;
            font-size: 13px;
            font-weight: 500;
            background: #E8F5EE;
            color: var(--color-primary);
            border-radius: 20px;
            border: 1px solid rgba(14, 59, 46, .12);
        }
        .page-header-tag.em {
            background: rgba(255, 106, 61, .09);
            color: #C24F2D;
            border-color: rgba(255, 106, 61, .2);
        }

        /* Filter Toolbar */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            padding: 20px 0;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-right: 4px;
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            background: #fff;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            border-radius: 10px;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: #F0FDF4;
        }
        .filter-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .filter-btn .dot-indicator {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-emphasis);
        }
        .filter-count {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-left: auto;
            white-space: nowrap;
        }

        /* Review Cards */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            padding-bottom: 48px;
        }
        .review-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(14, 59, 46, .15);
        }
        .review-card-img {
            aspect-ratio: 16/9;
            background: #D1D5DB;
            overflow: hidden;
            position: relative;
        }
        .review-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .review-card:hover .review-card-img img {
            transform: scale(1.03);
        }
        .review-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 700;
            background: rgba(14, 59, 46, .92);
            color: var(--color-accent);
            border-radius: 8px;
            letter-spacing: .3px;
            backdrop-filter: blur(4px);
        }
        .review-card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .review-card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }
        .review-card-meta .tag {
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            background: #F3F4F6;
            border-radius: 16px;
            color: var(--color-primary);
        }
        .review-card-meta .tag.em {
            background: rgba(255, 106, 61, .1);
            color: #C24F2D;
        }
        .review-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .review-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0 0 14px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .review-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .review-card-link {
            font-weight: 600;
            color: var(--color-primary);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .review-card-link:hover {
            color: #1A5C4A;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            margin: 0 0 48px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: .5px;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .72);
            margin-top: 6px;
            letter-spacing: .3px;
        }

        /* Section Titles */
        .section-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 8px;
            letter-spacing: .4px;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin: 0 0 28px;
            line-height: 1.75;
            max-width: 720px;
        }
        .section-block {
            padding: 48px 0;
        }
        .section-block.alt {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        /* Dimension Cards */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .dim-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 20px 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .dim-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(14, 59, 46, .16);
        }
        .dim-card .dim-icon {
            width: 38px;
            height: 38px;
            background: #E8F5EE;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
        }
        .dim-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }
        .dim-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* Related Reading */
        .related-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .related-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .related-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(14, 59, 46, .15);
        }
        .related-item h4 {
            font-size: .95rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .related-item p {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin: 0 0 10px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-item .related-meta {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(14, 59, 46, .18);
            box-shadow: var(--shadow-md);
        }
        .faq-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.5;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item h3::before {
            content: '';
            width: 5px;
            height: 18px;
            background: var(--color-primary);
            border-radius: 3px;
            flex-shrink: 0;
        }
        .faq-item p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.8;
            padding-left: 13px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            margin: 48px 0 56px;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            letter-spacing: .4px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, .78);
            margin: 0 0 24px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            border-radius: 10px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            letter-spacing: .3px;
        }
        .cta-btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .cta-btn-primary:hover {
            background: #e0ff5e;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(216, 255, 62, .28);
        }
        .cta-btn-secondary {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .35);
        }
        .cta-btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(216, 255, 62, .06);
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, .78);
            padding: 56px 0 0;
            margin-top: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
        }
        .footer-brand h3 span {
            color: var(--color-accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .68);
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: .3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            padding: 20px 0 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, .52);
            text-align: center;
        }
        .footer-bottom p {
            margin: 0;
            line-height: 1.7;
        }
        .footer-bottom .domain {
            color: rgba(255, 255, 255, .4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .review-grid {
                grid-template-columns: 1fr 1fr;
            }
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(14, 59, 46, .98);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid rgba(216, 255, 62, .15);
                box-shadow: 0 24px 48px rgba(0, 0, 0, .2);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .hamburger {
                display: block;
            }
            .nav-badge {
                display: none;
            }
            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .page-header h1 {
                font-size: 1.6rem;
            }
            .page-header .lead {
                font-size: .98rem;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .dimension-grid {
                grid-template-columns: 1fr;
            }
            .related-list {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 24px 18px;
                gap: 14px;
            }
            .stat-item .stat-num {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .filter-count {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-container {
                min-height: 60px;
            }
            .nav-logo-text {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 28px;
                height: 28px;
                font-size: 15px;
            }
            .nav-cta-btn {
                padding: 6px 12px;
                font-size: 12px;
            }
            .page-header {
                padding: 24px 0 18px;
            }
            .page-header h1 {
                font-size: 1.4rem;
            }
            .filter-toolbar {
                padding: 14px 0;
                gap: 6px;
            }
            .filter-btn {
                padding: 6px 12px;
                font-size: 13px;
            }
            .section-block {
                padding: 32px 0;
            }
            .review-card-body {
                padding: 16px;
            }
            .review-card h3 {
                font-size: 1rem;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 18px 14px;
                gap: 10px;
            }
            .stat-item .stat-num {
                font-size: 1.3rem;
            }
            .stat-item .stat-label {
                font-size: 11px;
            }
            .cta-section h2 {
                font-size: 1.2rem;
            }
            .cta-btn {
                padding: 10px 18px;
                font-size: 13px;
            }
        }