/* roulang page: index */
:root {
            --color-bg-dark: #0E1013;
            --color-bg-light: #F5F1EB;
            --color-primary: #E63946;
            --color-primary-hover: #C62835;
            --color-secondary: #C9A227;
            --color-text-dark: #1A1C1F;
            --color-text-gray: #6B7280;
            --color-text-light: #F5F1EB;
            --color-success: #1F7A4D;
            --color-warning: #C05621;
            --radius-card: 6px;
            --radius-badge: 3px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.18);
            --shadow-card-hover: 0 6px 20px rgba(230,57,70,0.25);
            --border-dark-card: 1px solid rgba(255,255,255,0.08);
            --border-light-card: 1px solid rgba(201,162,39,0.25);
            --font-family: 'Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --font-family-serif: 'Source Han Serif SC','Noto Serif SC','SimSun',serif;
            --transition-base: all 0.3s ease;
            --container-max: 1280px;
            --section-padding: 64px;
            --card-gap: 16px;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
        }

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

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

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 15px;
            outline: none;
            border: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

        .container-wide {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
        }

        .section-dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-light);
        }

        .section-light {
            background-color: var(--color-bg-light);
            color: var(--color-text-dark);
        }

        .section-title-group {
            margin-bottom: 32px;
        }

        .section-title-group h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            color: inherit;
            letter-spacing: -0.3px;
            margin-bottom: 8px;
        }

        .section-dark .section-title-group h2 {
            color: #ffffff;
        }

        .section-title-group h2 .highlight {
            color: var(--color-primary);
        }

        .section-title-group .title-accent {
            display: inline-block;
            width: 28px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-bottom: 10px;
        }

        .section-title-group p {
            font-size: 15px;
            color: var(--color-text-gray);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-dark .section-title-group p {
            color: rgba(245,241,235,0.7);
        }

        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 650;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            cursor: pointer;
            transition: var(--transition-base);
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            box-shadow: 0 0 18px rgba(201,162,39,0.45);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-secondary);
            border-color: var(--color-secondary);
        }

        .btn-secondary:hover {
            background: rgba(201,162,39,0.1);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: #F5F1EB;
            border-color: rgba(245,241,235,0.6);
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.15);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-1px);
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            letter-spacing: 0.5px;
        }

        .badge-gold {
            background: rgba(201,162,39,0.15);
            color: var(--color-secondary);
            border: 1px solid rgba(201,162,39,0.35);
        }

        .badge-red {
            background: rgba(230,57,70,0.12);
            color: var(--color-primary);
            border: 1px solid rgba(230,57,70,0.3);
        }

        .badge-green {
            background: rgba(31,122,77,0.12);
            color: var(--color-success);
            border: 1px solid rgba(31,122,77,0.3);
        }

        .badge-orange {
            background: rgba(192,86,33,0.12);
            color: var(--color-warning);
            border: 1px solid rgba(192,86,33,0.3);
        }

        .card {
            border-radius: var(--radius-card);
            transition: var(--transition-base);
        }

        .card-dark {
            background: #16181D;
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
        }

        .card-dark:hover {
            border-color: rgba(201,162,39,0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .card-light {
            background: #ffffff;
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--color-bg-dark);
            border-bottom: 1px solid rgba(201,162,39,0.35);
            box-shadow: 0 2px 16px rgba(0,0,0,0.4);
        }

        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 10px 0;
            flex-wrap: wrap;
        }

        .nav-logo-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-card);
            border: 1px solid rgba(201,162,39,0.3);
            flex-shrink: 0;
        }

        .nav-logo-card a {
            color: #ffffff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            letter-spacing: -0.3px;
        }

        .nav-logo-card .logo-69 {
            color: var(--color-primary);
            font-weight: 900;
            font-size: 20px;
            letter-spacing: 0;
        }

        .nav-logo-card .logo-badge {
            background: rgba(201,162,39,0.2);
            color: var(--color-secondary);
            font-size: 10px;
            font-weight: 600;
            padding: 2px 6px;
            border-radius: 3px;
            letter-spacing: 1px;
            border: 1px solid rgba(201,162,39,0.4);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-item {
            display: inline-block;
            padding: 8px 14px;
            color: rgba(245,241,235,0.75);
            font-size: 14px;
            font-weight: 500;
            border-radius: 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-item::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width 0.25s ease;
            border-radius: 1px;
        }

        .nav-item:hover {
            color: #ffffff;
            transform: translateY(-2px);
        }

        .nav-item:hover::after {
            width: 20px;
        }

        .nav-item.active {
            background: rgba(230,57,70,0.15);
            color: #ffffff;
        }

        .nav-item.active::after {
            width: 20px;
            background: var(--color-primary);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            background: transparent;
            border: 1px solid rgba(245,241,235,0.3);
            border-radius: 4px;
            padding: 8px 12px;
            color: #ffffff;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition-base);
        }

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

        .mobile-nav-panel {
            display: none;
            background: var(--color-bg-dark);
            border-top: 1px solid rgba(201,162,39,0.3);
            padding: 12px 0;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel .nav-item {
            display: block;
            width: 100%;
            padding: 12px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: 4px;
            border: 1px solid rgba(255,255,255,0.06);
            text-align: left;
        }

        /* ========== HERO ========== */
        .hero-section {
            background: var(--color-bg-dark);
            color: #ffffff;
            padding: 50px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), transparent);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #ffffff;
        }

        .hero-content h1 .highlight {
            color: var(--color-primary);
        }

        .hero-subtitle {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(245,241,235,0.8);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-badge-item {
            text-align: center;
            padding: 10px 18px;
            background: rgba(255,255,255,0.05);
            border-radius: 6px;
            border: 1px solid rgba(255,255,255,0.1);
            min-width: 90px;
        }

        .hero-badge-item .num {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .hero-badge-item .label {
            font-size: 11px;
            color: var(--color-secondary);
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .hero-visual {
            position: relative;
            border-radius: 8px;
            border: 1px solid rgba(201,162,39,0.4);
            overflow: hidden;
            background: #16181D;
        }

        .hero-visual img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: 8px;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 12px;
            background: var(--color-primary);
            opacity: 0.85;
        }

        .hero-visual-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(14,16,19,0.85);
            color: #ffffff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 3px;
            letter-spacing: 1px;
            border: 1px solid rgba(201,162,39,0.5);
        }

        .hero-hotwords {
            margin-top: 30px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            padding-top: 16px;
            border-top: 1px solid rgba(201,162,39,0.2);
        }

        .hero-hotword {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(201,162,39,0.1);
            color: var(--color-secondary);
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            border: 1px solid rgba(201,162,39,0.3);
            letter-spacing: 0.5px;
        }

        /* ========== SECTION VARIATIONS ========== */
        .grid-cards-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .grid-cards-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .grid-cards-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gap);
        }

        .masonry-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr;
            gap: var(--card-gap);
        }

        .masonry-grid .masonry-item:first-child {
            grid-row: span 2;
        }

        .category-card {
            display: flex;
            flex-direction: column;
            padding: 16px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .category-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 4px;
            margin-bottom: 12px;
            border: 1px solid rgba(0,0,0,0.08);
        }

        .category-card h3 {
            font-size: 16px;
            font-weight: 650;
            margin-bottom: 6px;
            color: var(--color-text-dark);
        }

        .category-card p {
            font-size: 13px;
            color: var(--color-text-gray);
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .category-card .arrow-link {
            font-size: 13px;
            color: var(--color-secondary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .service-card {
            padding: 24px 20px;
            background: #16181D;
            border-radius: var(--radius-card);
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .service-card:hover {
            border-color: rgba(230,57,70,0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .service-card .service-number {
            font-size: 28px;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1;
            flex-shrink: 0;
            min-width: 36px;
        }

        .service-card h3 {
            font-size: 16px;
            font-weight: 650;
            color: #ffffff;
            margin-bottom: 6px;
        }

        .service-card p {
            font-size: 13px;
            color: rgba(245,241,235,0.65);
            line-height: 1.7;
        }

        .data-row {
            display: flex;
            gap: 24px;
            align-items: stretch;
            flex-wrap: wrap;
        }

        .data-item {
            flex: 1;
            min-width: 150px;
            padding: 18px 16px;
            border-left: 2px solid var(--color-secondary);
            background: #ffffff;
            border-radius: 0 6px 6px 0;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .data-item:hover {
            border-left-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .data-item .data-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .data-item .data-label {
            font-size: 12px;
            color: var(--color-text-dark);
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .step-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .step-card {
            flex: 1;
            min-width: 150px;
            padding: 18px 14px;
            background: #16181D;
            border-radius: var(--radius-card);
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: var(--transition-base);
        }

        .step-card:hover {
            border-color: rgba(201,162,39,0.5);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-card .step-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .step-card h3 {
            font-size: 14px;
            font-weight: 650;
            color: #ffffff;
            margin-bottom: 4px;
        }

        .step-card p {
            font-size: 12px;
            color: rgba(245,241,235,0.6);
            line-height: 1.6;
        }

        .case-card {
            padding: 14px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .case-card img {
            width: 100%;
            height: 130px;
            object-fit: cover;
            border-radius: 4px;
            margin-bottom: 10px;
            border: 1px solid rgba(0,0,0,0.06);
        }

        .case-card h3 {
            font-size: 14px;
            font-weight: 650;
            color: var(--color-text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .case-card .case-meta {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .cms-card {
            display: flex;
            gap: 14px;
            padding: 14px;
            background: #16181D;
            border-radius: var(--radius-card);
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            margin-bottom: 10px;
        }

        .cms-card:hover {
            border-color: rgba(230,57,70,0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .cms-card img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: 4px;
            flex-shrink: 0;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .cms-card .cms-body {
            flex: 1;
            min-width: 0;
        }

        .cms-card h3 {
            font-size: 14px;
            font-weight: 650;
            color: #ffffff;
            margin-bottom: 4px;
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .cms-card p {
            font-size: 12px;
            color: rgba(245,241,235,0.6);
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            margin-bottom: 4px;
        }

        .cms-card .cms-meta {
            display: flex;
            gap: 10px;
            font-size: 11px;
            color: var(--color-secondary);
        }

        .cms-card .cms-read-arrow {
            align-self: center;
            font-size: 18px;
            color: rgba(245,241,235,0.4);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .cms-card:hover .cms-read-arrow {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        .topic-banner {
            display: grid;
            grid-template-columns: 1fr 0.8fr;
            gap: 24px;
            background: #ffffff;
            border-radius: 8px;
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .topic-banner:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
        }

        .topic-banner .topic-text {
            padding: 30px;
        }

        .topic-banner .topic-text .badge {
            margin-bottom: 10px;
        }

        .topic-banner .topic-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .topic-banner .topic-text p {
            font-size: 14px;
            color: var(--color-text-gray);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .topic-banner .topic-text .btn {
            font-size: 13px;
            padding: 8px 16px;
        }

        .topic-banner img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-left: 1px solid rgba(201,162,39,0.3);
        }

        .logo-wall {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .logo-placeholder {
            width: 140px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 6px;
            color: rgba(245,241,235,0.55);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            transition: var(--transition-base);
        }

        .logo-placeholder:hover {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
            transform: translateY(-3px);
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .scene-card {
            padding: 18px 16px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .scene-card .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 6px;
            background: rgba(230,57,70,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .scene-card h3 {
            font-size: 14px;
            font-weight: 650;
            color: var(--color-text-dark);
            margin-bottom: 2px;
        }

        .scene-card p {
            font-size: 12px;
            color: var(--color-text-gray);
            line-height: 1.5;
        }

        .guarantee-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 24px 28px;
            background: #16181D;
            border-radius: var(--radius-card);
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
            flex-wrap: wrap;
        }

        .guarantee-bar .guarantee-text {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            flex: 1;
            min-width: 200px;
        }

        .guarantee-bar .guarantee-text .highlight {
            color: var(--color-primary);
        }

        .guarantee-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .faq-accordion {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .faq-accordion .accordion-item {
            margin-bottom: 8px;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: var(--border-light-card);
            background: #ffffff;
            box-shadow: 0 1px 6px rgba(0,0,0,0.08);
        }

        .faq-accordion .accordion-title {
            display: block;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 650;
            color: var(--color-text-dark);
            background: #ffffff;
            cursor: pointer;
            transition: var(--transition-base);
            position: relative;
            padding-right: 40px;
        }

        .faq-accordion .accordion-title::after {
            content: '+';
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 20px;
            color: var(--color-secondary);
            font-weight: 400;
            transition: var(--transition-base);
        }

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

        .faq-accordion .accordion-content {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-text-gray);
            line-height: 1.8;
            display: none;
        }

        .faq-accordion .accordion-item.is-active .accordion-title {
            color: var(--color-primary);
        }

        .faq-accordion .accordion-item.is-active .accordion-title::after {
            content: '−';
            color: var(--color-primary);
        }

        .faq-accordion .accordion-item.is-active .accordion-content {
            display: block;
        }

        .price-card {
            padding: 24px 20px;
            background: #16181D;
            border-radius: var(--radius-card);
            border: var(--border-dark-card);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }

        .price-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
        }

        .price-card.featured {
            border-color: var(--color-primary);
            box-shadow: 0 0 24px rgba(230,57,70,0.35);
        }

        .price-card .popular-tag {
            position: absolute;
            top: -10px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: #ffffff;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 12px;
            letter-spacing: 1px;
        }

        .price-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .price-card .price-amount {
            font-size: 30px;
            font-weight: 900;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .price-card .price-amount span {
            font-size: 14px;
            font-weight: 500;
            color: rgba(245,241,235,0.6);
        }

        .price-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            text-align: left;
        }

        .price-card ul li {
            padding: 6px 0;
            font-size: 13px;
            color: rgba(245,241,235,0.7);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .price-card ul li i {
            color: var(--color-success);
            font-size: 11px;
        }

        .contact-form-card {
            padding: 28px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: var(--border-light-card);
            box-shadow: var(--shadow-card);
        }

        .contact-form-card input,
        .contact-form-card select,
        .contact-form-card textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid rgba(0,0,0,0.12);
            border-radius: 4px;
            font-size: 14px;
            color: var(--color-text-dark);
            background: #fff;
            transition: var(--transition-base);
            margin-bottom: 14px;
        }

        .contact-form-card input:focus,
        .contact-form-card select:focus,
        .contact-form-card textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.1), 0 0 12px rgba(201,162,39,0.3);
            outline: none;
        }

        .contact-info-card {
            padding: 18px 16px;
            border-left: 2px solid var(--color-secondary);
            background: #ffffff;
            border-radius: 0 4px 4px 0;
            box-shadow: var(--shadow-card);
            margin-bottom: 10px;
        }

        .contact-info-card .info-label {
            font-size: 11px;
            color: var(--color-secondary);
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .contact-info-card .info-value {
            font-size: 14px;
            color: var(--color-text-dark);
            font-weight: 500;
        }

        .bottom-guide-bar {
            padding: 28px 30px;
            background: linear-gradient(135deg, #16181D 0%, #1E2229 100%);
            border-radius: var(--radius-card);
            border: 1px solid rgba(230,57,70,0.3);
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bottom-guide-bar p {
            font-size: 15px;
            color: #ffffff;
            font-weight: 600;
            margin: 0;
            flex: 1;
            min-width: 220px;
        }

        .bottom-guide-bar p .highlight {
            color: var(--color-primary);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0A0C0F;
            color: rgba(245,241,235,0.7);
            padding: 40px 0 20px;
            border-top: 1px solid rgba(201,162,39,0.3);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }

        .footer-brand h3 .highlight {
            color: var(--color-primary);
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(245,241,235,0.55);
        }

        .footer-links h4 {
            font-size: 14px;
            font-weight: 650;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-links a {
            display: block;
            font-size: 13px;
            color: rgba(245,241,235,0.55);
            padding: 4px 0;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 16px;
            text-align: center;
            font-size: 12px;
            color: rgba(245,241,235,0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-content h1 {
                font-size: 28px;
            }

            .grid-cards-4 {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .masonry-grid .masonry-item:first-child {
                grid-row: span 1;
            }

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

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

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

            .nav-menu {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-hamburger {
                display: block;
            }

            .hero-content h1 {
                font-size: 24px;
            }

            .grid-cards-4,
            .grid-cards-3,
            .grid-cards-2,
            .masonry-grid,
            .scene-grid {
                grid-template-columns: 1fr;
            }

            .topic-banner {
                grid-template-columns: 1fr;
            }

            .topic-banner img {
                height: 160px;
                border-left: none;
                border-top: 1px solid rgba(201,162,39,0.3);
            }

            .cms-card {
                flex-direction: column;
            }

            .cms-card img {
                width: 100%;
                height: 140px;
            }

            .step-row {
                flex-direction: column;
            }

            .step-card {
                min-width: auto;
            }

            .data-item {
                min-width: 100%;
            }

            .guarantee-bar {
                flex-direction: column;
                text-align: center;
            }

            .hero-badges {
                justify-content: center;
            }

            .hero-hotwords {
                justify-content: center;
            }

            .bottom-guide-bar {
                flex-direction: column;
                text-align: center;
            }

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

            .nav-logo-card {
                font-size: 14px;
                padding: 6px 10px;
            }

            .nav-logo-card .logo-69 {
                font-size: 17px;
            }
        }

        @media screen and (max-width: 520px) {
            .container-wide {
                padding-left: 14px;
                padding-right: 14px;
            }

            .hero-content h1 {
                font-size: 22px;
                line-height: 1.35;
            }

            .hero-subtitle {
                font-size: 14px;
            }

            .hero-visual img {
                height: 200px;
            }

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

            .btn {
                padding: 9px 18px;
                font-size: 13px;
            }

            .price-card {
                padding: 18px 14px;
            }

            .price-card .price-amount {
                font-size: 24px;
            }

            .logo-placeholder {
                width: 100px;
                height: 55px;
                font-size: 10px;
            }

            .cms-card img {
                height: 100px;
            }

            .topic-banner .topic-text {
                padding: 18px;
            }

            .contact-form-card {
                padding: 18px;
            }
        }

/* roulang page: article */
:root {
            --color-bg-dark: #0E1013;
            --color-bg-light: #F5F1EB;
            --color-primary: #E63946;
            --color-primary-hover: #C62835;
            --color-secondary: #C9A227;
            --color-text-dark: #1A1C1F;
            --color-text-gray: #6B7280;
            --color-text-light: #F5F1EB;
            --color-success: #1F7A4D;
            --color-warning: #C05621;
            --radius-card: 6px;
            --radius-badge: 3px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.18);
            --shadow-card-hover: 0 6px 20px rgba(230,57,70,0.25);
            --border-dark-card: 1px solid rgba(255,255,255,0.08);
            --border-light-card: 1px solid rgba(201,162,39,0.25);
            --font-family: 'Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --font-family-serif: 'Source Han Serif SC','Noto Serif SC','SimSun',serif;
            --transition-base: all 0.3s ease;
            --container-max: 1280px;
            --section-padding: 64px;
            --card-gap: 16px;
        }
        @media (max-width: 640px) {
            :root {
                --section-padding: 40px;
            }
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        a:hover {
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 15px;
            outline: none;
            border: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }
        .container-wide {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
        }
        .section-dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-light);
        }
        .section-light {
            background-color: var(--color-bg-light);
            color: var(--color-text-dark);
        }
        .section-title-group {
            margin-bottom: 32px;
        }
        .section-title-group h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            color: inherit;
            letter-spacing: -0.3px;
            margin-bottom: 8px;
        }
        .section-dark .section-title-group h2 {
            color: #ffffff;
        }
        .section-title-group h2 .highlight {
            color: var(--color-primary);
        }
        .section-title-group .title-accent {
            display: inline-block;
            width: 28px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-bottom: 10px;
        }
        .section-title-group p {
            font-size: 15px;
            color: var(--color-text-gray);
            line-height: 1.8;
            max-width: 720px;
            margin: 0;
        }
        .section-dark .section-title-group p {
            color: rgba(245,241,235,0.7);
        }
        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 650;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            cursor: pointer;
            transition: var(--transition-base);
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            box-shadow: 0 0 18px rgba(201,162,39,0.45);
            color: #ffffff;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-secondary);
            border-color: var(--color-secondary);
        }
        .btn-secondary:hover {
            background: rgba(201,162,39,0.1);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: #F5F1EB;
            border-color: rgba(245,241,235,0.6);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.15);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-1px);
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            letter-spacing: 0.5px;
        }
        .badge-gold {
            background: rgba(201,162,39,0.15);
            color: var(--color-secondary);
            border: 1px solid rgba(201,162,39,0.35);
        }
        .badge-red {
            background: rgba(230,57,70,0.12);
            color: var(--color-primary);
            border: 1px solid rgba(230,57,70,0.35);
        }
        .badge-green {
            background: rgba(31,122,77,0.15);
            color: var(--color-success);
            border: 1px solid rgba(31,122,77,0.35);
        }
        .badge-warning {
            background: rgba(192,86,33,0.15);
            color: var(--color-warning);
            border: 1px solid rgba(192,86,33,0.35);
        }
        .card-dark {
            background: #1A1C1F;
            border: var(--border-dark-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: rgba(230,57,70,0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .card-light {
            background: #ffffff;
            border: var(--border-light-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .card-light:hover {
            border-color: rgba(230,57,70,0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #0E1013;
            border-bottom: 1px solid rgba(201,162,39,0.3);
            box-shadow: 0 2px 20px rgba(0,0,0,0.35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 12px;
            padding-bottom: 12px;
            flex-wrap: wrap;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: #ffffff;
            line-height: 1.3;
            flex-shrink: 0;
            transition: var(--transition-base);
        }
        .logo-area:hover {
            color: #ffffff;
            transform: translateY(-1px);
        }
        .logo-number {
            color: var(--color-primary);
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .logo-text {
            font-size: 17px;
            letter-spacing: 0.3px;
        }
        .logo-badge {
            margin-left: 2px;
            font-size: 11px;
            padding: 2px 8px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-item {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-card);
            font-size: 14px;
            font-weight: 500;
            color: rgba(245,241,235,0.8);
            position: relative;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }
        .nav-item:hover {
            color: #ffffff;
            background: rgba(255,255,255,0.06);
            border-color: rgba(201,162,39,0.3);
        }
        .nav-item.active {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
            font-weight: 650;
        }
        .nav-item.active:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #ffffff;
        }
        .header-cta {
            padding: 9px 20px;
            font-size: 14px;
            flex-shrink: 0;
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            color: #ffffff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255,255,255,0.15);
            transition: var(--transition-base);
            line-height: 1;
        }
        .mobile-toggle:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.3);
        }
        /* Article hero / TDK area */
        .article-hero {
            padding-top: 48px;
            padding-bottom: 32px;
            background: var(--color-bg-dark);
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-primary);
            z-index: 1;
        }
        .article-hero-inner {
            position: relative;
            z-index: 2;
        }
        .article-meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
            font-size: 13px;
            color: rgba(245,241,235,0.7);
        }
        .article-meta-row .meta-sep {
            color: var(--color-secondary);
            opacity: 0.7;
        }
        .article-meta-row .badge {
            font-size: 12px;
        }
        .article-h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.5px;
            color: #ffffff;
            margin: 0 0 8px 0;
        }
        .article-h1 .highlight {
            color: var(--color-primary);
        }
        /* Breadcrumb */
        .breadcrumb-bar {
            background: #F5F1EB;
            padding-top: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(201,162,39,0.25);
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-gray);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb a {
            color: var(--color-text-dark);
            font-weight: 500;
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .crumb-sep {
            color: var(--color-secondary);
            font-size: 12px;
        }
        .breadcrumb .crumb-current {
            color: var(--color-primary);
            font-weight: 650;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        /* Article body */
        .article-body-wrap {
            background: #F5F1EB;
            padding-top: 40px;
            padding-bottom: 48px;
        }
        .article-body-card {
            background: #ffffff;
            border: 1px solid rgba(201,162,39,0.25);
            border-radius: var(--radius-card);
            box-shadow: 0 2px 20px rgba(0,0,0,0.08);
            padding: 40px 44px;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body {
            font-family: var(--font-family-serif);
            font-size: 16px;
            line-height: 2.0;
            color: #2A2D31;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }
        .article-body p {
            margin-bottom: 1.5em;
            font-size: 16px;
            line-height: 2.0;
        }
        .article-body p:first-of-type {
            font-size: 17px;
            line-height: 2.0;
            font-weight: 500;
            color: #1A1C1F;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-weight: 700;
            line-height: 1.4;
            color: #1A1C1F;
            margin-top: 2em;
            margin-bottom: 0.8em;
            padding-left: 14px;
            position: relative;
            letter-spacing: -0.2px;
        }
        .article-body h2::before,
        .article-body h3::before,
        .article-body h4::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .article-body h2 {
            font-size: 22px;
        }
        .article-body h3 {
            font-size: 18px;
        }
        .article-body h4 {
            font-size: 16px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--color-secondary);
            background: rgba(201,162,39,0.08);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            font-style: normal;
            color: #4A4D52;
        }
        .article-body blockquote p {
            margin-bottom: 0;
            font-size: 15px;
        }
        .article-body ul,
        .article-body ol {
            margin: 1em 0 1.5em 0;
            padding-left: 20px;
        }
        .article-body ul li {
            list-style: none;
            position: relative;
            padding-left: 18px;
            margin-bottom: 8px;
            line-height: 1.8;
        }
        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 11px;
            width: 7px;
            height: 7px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .article-body ol li {
            margin-bottom: 8px;
            line-height: 1.8;
            padding-left: 6px;
        }
        .article-body img {
            max-width: 100%;
            border: 1px solid rgba(201,162,39,0.35);
            border-radius: var(--radius-card);
            margin: 1.5em auto;
        }
        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-decoration-color: rgba(230,57,70,0.5);
            transition: var(--transition-base);
        }
        .article-body a:hover {
            color: var(--color-primary-hover);
            text-decoration-color: var(--color-primary);
        }
        .article-body code,
        .article-body pre {
            font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
            font-size: 14px;
            background: #f4f4f4;
            border-radius: 4px;
        }
        .article-body pre {
            padding: 16px;
            overflow-x: auto;
            margin: 1.5em 0;
            border: 1px solid rgba(0,0,0,0.08);
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(201,162,39,0.25);
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found p {
            font-size: 18px;
            color: var(--color-text-gray);
            margin-bottom: 24px;
        }
        /* Related recommendations */
        .related-section {
            background: #121417;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 8px;
        }
        .related-card {
            background: #1A1C1F;
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            overflow: hidden;
        }
        .related-card:hover {
            border-color: rgba(230,57,70,0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .related-card .related-img-wrap {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }
        .related-card .related-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .related-img-wrap img {
            transform: scale(1.05);
        }
        .related-card .related-content {
            padding: 14px 16px 16px;
        }
        .related-card .related-title {
            font-size: 15px;
            font-weight: 650;
            line-height: 1.5;
            color: #F5F1EB;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .related-time {
            font-size: 12px;
            color: var(--color-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .related-link {
            display: block;
            color: inherit;
        }
        .related-card .related-link:hover {
            color: inherit;
        }
        /* Back link */
        .back-section {
            background: #F5F1EB;
            padding-top: 32px;
            padding-bottom: 32px;
            text-align: center;
        }
        /* Comments */
        .comments-section {
            background: #0E1013;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 8px;
        }
        .comment-card {
            background: #1A1C1F;
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .comment-card:hover {
            border-color: rgba(201,162,39,0.4);
        }
        .comment-card .comment-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .comment-card .comment-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            border: 1px solid rgba(201,162,39,0.4);
            overflow: hidden;
        }
        .comment-card .comment-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .comment-card .comment-nickname {
            font-size: 14px;
            font-weight: 650;
            color: #F5F1EB;
        }
        .comment-card .comment-text {
            font-size: 14px;
            color: rgba(245,241,235,0.75);
            line-height: 1.8;
            margin: 0;
        }
        /* Subscribe */
        .subscribe-section {
            background: #F5F1EB;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .subscribe-card {
            background: #ffffff;
            border: 1px solid rgba(201,162,39,0.3);
            border-radius: var(--radius-card);
            box-shadow: 0 2px 20px rgba(0,0,0,0.06);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-dark);
            margin: 0 0 6px 0;
        }
        .subscribe-card p {
            font-size: 14px;
            color: var(--color-text-gray);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .subscribe-form input[type="email"] {
            padding: 11px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(201,162,39,0.35);
            font-size: 14px;
            width: 260px;
            transition: var(--transition-base);
            background: #F5F1EB;
            color: var(--color-text-dark);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
            background: #ffffff;
        }
        /* Footer */
        .site-footer {
            background: #0A0B0D;
            border-top: 1px solid rgba(201,162,39,0.25);
            padding-top: 48px;
            padding-bottom: 20px;
            color: rgba(245,241,235,0.7);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .footer-brand h3 .highlight {
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(245,241,235,0.6);
            line-height: 1.7;
            max-width: 400px;
            margin: 0;
        }
        .footer-links h4 {
            font-size: 14px;
            font-weight: 650;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .footer-links a {
            display: block;
            font-size: 13px;
            color: rgba(245,241,235,0.65);
            padding: 4px 0;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 16px;
            font-size: 12px;
            color: rgba(245,241,235,0.45);
            text-align: center;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-body-card {
                padding: 32px 28px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-menu {
                order: 3;
                width: 100%;
                justify-content: center;
                gap: 4px;
                padding-top: 8px;
                border-top: 1px solid rgba(255,255,255,0.08);
                margin-top: 4px;
            }
            .nav-item {
                padding: 6px 12px;
                font-size: 13px;
            }
            .header-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .article-h1 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form input[type="email"] {
                width: 100%;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
        }
        @media (max-width: 640px) {
            .mobile-toggle {
                display: inline-block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding-top: 8px;
                gap: 4px;
            }
            .nav-menu.menu-open {
                display: flex;
            }
            .nav-item {
                display: block;
                padding: 10px 14px;
                font-size: 14px;
                border: 1px solid rgba(255,255,255,0.06);
                border-radius: var(--radius-card);
                text-align: center;
                background: rgba(255,255,255,0.03);
            }
            .nav-item.active {
                background: var(--color-primary);
                border-color: var(--color-primary);
            }
            .header-cta {
                display: none;
            }
            .article-h1 {
                font-size: 22px;
                line-height: 1.4;
            }
            .article-body-card {
                padding: 24px 18px;
            }
            .article-body {
                font-size: 15px;
                line-height: 1.9;
            }
            .article-body p:first-of-type {
                font-size: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-meta-row {
                font-size: 12px;
                gap: 6px;
            }
            .breadcrumb .crumb-current {
                max-width: 160px;
            }
        }
        @media (max-width: 520px) {
            .container-wide {
                padding-left: 14px;
                padding-right: 14px;
            }
            .logo-text {
                font-size: 14px;
            }
            .logo-number {
                font-size: 22px;
            }
            .article-body-card {
                padding: 20px 14px;
            }
            .article-body h2 {
                font-size: 19px;
            }
            .article-body h3 {
                font-size: 17px;
            }
            .article-body p {
                font-size: 15px;
                line-height: 1.9;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg-dark: #0E1013;
            --color-bg-light: #F5F1EB;
            --color-primary: #E63946;
            --color-primary-hover: #C62835;
            --color-secondary: #C9A227;
            --color-text-dark: #1A1C1F;
            --color-text-gray: #6B7280;
            --color-text-light: #F5F1EB;
            --color-success: #1F7A4D;
            --color-warning: #C05621;
            --radius-card: 6px;
            --radius-badge: 3px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.18);
            --shadow-card-hover: 0 6px 20px rgba(230,57,70,0.25);
            --border-dark-card: 1px solid rgba(255,255,255,0.08);
            --border-light-card: 1px solid rgba(201,162,39,0.25);
            --font-family: 'Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --transition-base: all 0.3s ease;
            --container-max: 1280px;
            --section-padding: 64px;
            --card-gap: 16px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        a:hover {
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 15px;
            outline: none;
            border: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }
        .container-wide {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .section {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
        }
        .section-dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-light);
        }
        .section-light {
            background-color: var(--color-bg-light);
            color: var(--color-text-dark);
        }
        .section-title-group {
            margin-bottom: 32px;
        }
        .section-title-group h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: -0.3px;
            margin-bottom: 8px;
        }
        .section-dark .section-title-group h2 {
            color: #ffffff;
        }
        .section-light .section-title-group h2 {
            color: var(--color-text-dark);
        }
        .section-title-group h2 .highlight {
            color: var(--color-primary);
        }
        .section-title-group .title-accent {
            display: inline-block;
            width: 28px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-bottom: 10px;
        }
        .section-title-group p {
            font-size: 15px;
            color: var(--color-text-gray);
            line-height: 1.8;
            max-width: 720px;
            margin: 0;
        }
        .section-dark .section-title-group p {
            color: rgba(245,241,235,0.7);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 650;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            cursor: pointer;
            transition: var(--transition-base);
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #ffffff !important;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            box-shadow: 0 0 18px rgba(201,162,39,0.45);
            color: #ffffff !important;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-secondary) !important;
            border-color: var(--color-secondary);
        }
        .btn-secondary:hover {
            background: rgba(201,162,39,0.1);
            border-color: var(--color-primary);
            color: var(--color-primary) !important;
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: #F5F1EB !important;
            border-color: rgba(245,241,235,0.6);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.15);
            border-color: #ffffff;
            color: #ffffff !important;
            transform: translateY(-1px);
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            letter-spacing: 0.5px;
        }
        .badge-gold {
            background: rgba(201,162,39,0.15);
            color: var(--color-secondary);
            border: 1px solid rgba(201,162,39,0.35);
        }
        .badge-red {
            background: rgba(230,57,70,0.12);
            color: var(--color-primary);
            border: 1px solid rgba(230,57,70,0.35);
        }
        .badge-success {
            background: rgba(31,122,77,0.12);
            color: var(--color-success);
            border: 1px solid rgba(31,122,77,0.35);
        }
        .badge-warning {
            background: rgba(192,86,33,0.12);
            color: var(--color-warning);
            border: 1px solid rgba(192,86,33,0.35);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: var(--color-bg-dark);
            border-bottom: 1px solid rgba(201,162,39,0.25);
            box-shadow: 0 2px 12px rgba(0,0,0,0.35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 74px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #ffffff;
            white-space: nowrap;
        }
        .logo-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }
        .logo-word {
            font-size: 17px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.2px;
        }
        .logo-badge {
            font-size: 11px;
            padding: 2px 8px;
            margin-left: 4px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-item {
            padding: 10px 14px;
            border-radius: 6px;
            color: rgba(245,241,235,0.75);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-item:hover {
            color: #ffffff;
            background: rgba(230,57,70,0.08);
        }
        .nav-item.active {
            background: var(--color-primary);
            color: #ffffff;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-nav-cta {
            padding: 9px 20px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(201,162,39,0.12);
            color: #ffffff;
            border: 1px solid rgba(201,162,39,0.35);
            border-radius: 6px;
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background: rgba(201,162,39,0.2);
            border-color: var(--color-primary);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--color-bg-dark);
            border-top: 1px solid rgba(201,162,39,0.25);
            padding: 12px 20px 20px;
            gap: 4px;
        }
        .mobile-nav .nav-item {
            width: 100%;
            text-align: left;
            margin-bottom: 2px;
        }
        .mobile-nav .btn {
            width: 100%;
            margin-top: 8px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-secondary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: rgba(255,255,255,0.6);
        }
        .breadcrumb a:hover {
            color: #ffffff;
        }
        .breadcrumb .separator {
            color: rgba(255,255,255,0.3);
        }
        .category-hero {
            padding-top: 40px;
            padding-bottom: 40px;
            background-color: var(--color-bg-dark);
            color: #ffffff;
            border-bottom: 1px solid rgba(201,162,39,0.25);
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            max-width: 900px;
        }
        .category-hero h1 .highlight {
            color: var(--color-primary);
        }
        .category-hero .hero-summary {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(245,241,235,0.78);
            max-width: 760px;
            margin: 0;
        }
        .category-hero-meta {
            margin-top: 24px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-chip {
            background: rgba(201,162,39,0.1);
            border: 1px solid rgba(201,162,39,0.3);
            color: var(--color-secondary);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
        }
        .filter-toolbar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-gray);
            margin-right: 4px;
        }
        .filter-chip {
            border: 1px solid var(--color-secondary);
            background: transparent;
            color: var(--color-secondary);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition-base);
            font-weight: 500;
        }
        .filter-chip.active {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }
        .filter-chip:hover:not(.active) {
            background: rgba(201,162,39,0.1);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .category-card {
            background: #15171c;
            border: var(--border-dark-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            box-shadow: 0 2px 12px rgba(0,0,0,0.35);
        }
        .category-card:hover {
            transform: translateY(-4px);
            border-color: rgba(230,57,70,0.6);
            box-shadow: var(--shadow-card-hover);
        }
        .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-bg-dark);
            position: relative;
        }
        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
        }
        .category-card h3 {
            font-size: 18px;
            font-weight: 650;
            line-height: 1.5;
            color: #ffffff;
            margin: 0;
        }
        .card-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245,241,235,0.62);
            margin: 0;
        }
        .card-time {
            font-size: 12px;
            color: var(--color-secondary);
            white-space: nowrap;
        }
        .card-link {
            font-weight: 650;
            color: var(--color-primary);
            font-size: 13px;
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-link:hover {
            color: #ffffff;
        }
        .rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #ffffff;
            border: var(--border-light-card);
            border-radius: var(--radius-card);
            padding: 14px 16px;
            transition: var(--transition-base);
            box-shadow: 0 2px 10px rgba(0,0,0,0.06);
        }
        .rank-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230,57,70,0.5);
            transform: translateY(-2px);
        }
        .rank-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-secondary);
            width: 42px;
            text-align: center;
            flex-shrink: 0;
        }
        .rank-title {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-dark);
        }
        .rank-heat {
            font-size: 12px;
            color: var(--color-warning);
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }
        .topic-recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: #15171c;
            border: var(--border-dark-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            border-color: rgba(230,57,70,0.6);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: #0E1013;
        }
        .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.05);
        }
        .topic-body {
            padding: 16px 18px;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 650;
            line-height: 1.5;
            color: #ffffff;
            margin: 0 0 8px;
        }
        .topic-body p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245,241,235,0.62);
            margin: 0 0 14px;
        }
        .topic-body .btn {
            font-size: 13px;
            padding: 7px 16px;
        }
        .explain-panel {
            background: #ffffff;
            border: 1px solid rgba(201,162,39,0.35);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
        }
        .explain-panel h2 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text-dark);
            margin-bottom: 12px;
        }
        .explain-panel p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--color-text-gray);
            margin: 0;
            max-width: 860px;
        }
        .subscribe-panel {
            background-color: #15171c;
            border: 1px solid rgba(201,162,39,0.3);
            border-radius: var(--radius-card);
            padding: 36px;
            box-shadow: 0 6px 22px rgba(0,0,0,0.3);
        }
        .subscribe-panel h2 {
            color: #ffffff;
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .subscribe-panel p {
            font-size: 15px;
            color: rgba(245,241,235,0.7);
            margin-bottom: 20px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 560px;
            margin-top: 8px;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255,255,255,0.2);
            background: #0E1013;
            color: #ffffff;
            transition: var(--transition-base);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: rgba(245,241,235,0.4);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.2);
        }
        .back-home {
            text-align: left;
        }
        .back-home .btn {
            font-size: 15px;
            padding: 11px 28px;
        }
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(245,241,235,0.72);
            padding: 40px 0 24px;
            border-top: 1px solid rgba(201,162,39,0.25);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand h3 {
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            font-family: var(--font-family);
        }
        .footer-brand .highlight {
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(245,241,235,0.55);
            max-width: 420px;
            margin: 0;
        }
        .footer-links h4 {
            color: var(--color-secondary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-links a {
            display: block;
            color: rgba(245,241,235,0.72);
            padding: 5px 0;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 28px;
            padding-top: 20px;
            font-size: 12px;
            text-align: center;
            color: rgba(245,241,235,0.45);
        }
        @media (max-width: 1024px) {
            .card-grid-3,
            .topic-recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-menu {
                gap: 2px;
            }
            .nav-item {
                padding: 9px 11px;
                font-size: 13px;
            }
            .logo-word {
                font-size: 15px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
                min-height: 64px;
            }
            .nav-menu {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .card-grid-3,
            .topic-recommend-grid {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .subscribe-panel {
                padding: 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 24px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-chip {
                text-align: center;
            }
            .logo-badge {
                display: none;
            }
            .rank-item {
                gap: 10px;
                padding: 12px;
            }
            .rank-num {
                font-size: 18px;
                width: 32px;
            }
            .card-body {
                padding: 14px;
            }
            .topic-body {
                padding: 14px;
            }
            .btn-nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
        }