/* roulang page: index */
:root {
            --primary-50: #EFF6FF;
            --primary-100: #DBEAFE;
            --primary-200: #BFDBFE;
            --primary-500: #3B82F6;
            --primary-600: #2563EB;
            --primary-700: #1D4ED8;
            --primary-800: #1E40AF;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --text-main: #0F172A;
            --text-strong: #1E293B;
            --text-normal: #334155;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F6F9FE;
            --bg-soft: #F8FAFF;
            --card-bg: #FFFFFF;
            --border-color: #E3EAF3;
            --border-strong: #CBD5E1;
            --shadow-sm: 0 1px 2px rgba(30, 64, 175, .04);
            --shadow-md: 0 6px 18px rgba(30, 64, 175, .06);
            --shadow-lg: 0 12px 32px rgba(30, 64, 175, .08);
            --shadow-xl: 0 18px 44px rgba(30, 64, 175, .10);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-base: 180ms ease;
            --transition-smooth: 240ms cubic-bezier(.4, 0, .2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-normal);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 16px;
        }

        @media (min-width: 640px) {
            .container {
                padding: 0 20px;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 0 24px;
            }
        }

        /* ===== 杂志刊头导航 ===== */
        .masthead {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(30, 64, 175, .05);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .masthead-inner {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 14px 0 12px;
        }

        .masthead-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .masthead-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-600);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-100);
            margin-right: 2px;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
            white-space: nowrap;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-color);
            width: 100%;
        }

        .channel-bar {
            display: flex;
            align-items: center;
            gap: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .channel-bar::-webkit-scrollbar {
            height: 3px;
        }
        .channel-bar::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 9999px;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            gap: 0;
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
            padding: 6px 0;
            white-space: nowrap;
            letter-spacing: .3px;
            position: relative;
        }
        .channel-link a {
            padding: 2px 6px;
            border-radius: 6px;
        }
        .channel-link a:hover {
            color: var(--primary-700);
            background: var(--primary-50);
        }
        .channel-link.active a {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
        }
        .channel-divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            margin: 0 10px;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-strong);
            cursor: pointer;
            transition: background var(--transition-base);
            font-size: 20px;
            line-height: 1;
        }
        .hamburger-btn:hover {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }

        .mobile-menu {
            display: none;
            background: var(--card-bg);
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 14px;
            color: var(--text-normal);
            border-bottom: 1px solid var(--border-color);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a.active {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
            border-radius: 6px;
        }

        @media (max-width: 767px) {
            .desktop-channel-bar {
                display: none;
            }
            .mobile-menu-btn-wrap {
                display: inline-flex;
            }
            .masthead-logo {
                font-size: 26px;
            }
            .masthead-tagline {
                font-size: 11px;
                letter-spacing: 1px;
            }
        }
        @media (min-width: 768px) {
            .desktop-channel-bar {
                display: flex;
            }
            .mobile-menu-btn-wrap {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 48px 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 64px 0;
            }
        }
        @media (min-width: 1024px) {
            .section {
                padding: 80px 0;
            }
        }

        .section-header {
            margin-bottom: 28px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-700);
            background: var(--primary-100);
            padding: 4px 12px;
            border-radius: 9999px;
            letter-spacing: .5px;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.3;
            letter-spacing: .3px;
        }
        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 30px;
            }
        }
        .section-header .section-sub {
            font-size: 15px;
            color: var(--text-weak);
            margin-top: 8px;
            max-width: 720px;
            line-height: 1.7;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .card-pad {
            padding: 20px;
        }
        @media (min-width: 768px) {
            .card-pad {
                padding: 24px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            border: none;
            transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            letter-spacing: .3px;
        }
        .btn-primary {
            background: var(--primary-600);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, .25);
        }
        .btn-primary:hover {
            background: var(--primary-700);
            box-shadow: 0 8px 24px rgba(37, 99, 235, .35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, .2);
        }
        .btn-outline {
            background: var(--card-bg);
            color: var(--primary-600);
            border: 1px solid var(--primary-500);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary-50);
            border-color: var(--primary-700);
            color: var(--primary-700);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 12px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-50);
            color: var(--primary-700);
            letter-spacing: .3px;
            white-space: nowrap;
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-weak);
        }

        .data-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.2;
        }
        .data-label {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: .3px;
        }

        .bg-soft {
            background: var(--bg-soft);
        }
        .bg-card {
            background: var(--card-bg);
        }
        .border-soft {
            border: 1px solid var(--border-color);
        }

        .text-strong {
            color: var(--text-strong);
        }
        .text-weak {
            color: var(--text-weak);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            margin-top: auto;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
            padding: 48px 16px 32px;
        }
        @media (min-width: 640px) {
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }
        @media (min-width: 1024px) {
            .footer-inner {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
                gap: 40px;
                padding: 56px 24px 36px;
            }
        }
        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #F8FAFC;
            letter-spacing: .5px;
        }
        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin-top: 10px;
            max-width: 360px;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #E2E8F0;
            letter-spacing: .5px;
            margin-bottom: 12px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: #94A3B8;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: #F8FAFC;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding: 16px 16px;
            text-align: center;
            font-size: 12px;
            color: #64748B;
        }
        .footer-bottom a {
            color: #94A3B8;
        }
        .footer-bottom a:hover {
            color: #F8FAFC;
        }

        /* ===== 卡片细节 ===== */
        .stat-card {
            text-align: left;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary-500);
            border-radius: 0 4px 4px 0;
        }

        .article-card-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            background: var(--bg-soft);
        }
        .article-card-body {
            padding: 16px 18px 18px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-50);
            color: var(--primary-700);
            cursor: default;
            transition: background var(--transition-base);
        }
        .tag-chip:hover {
            background: var(--primary-100);
        }

        .timeline-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary-500);
            flex-shrink: 0;
            margin-top: 6px;
            box-shadow: 0 0 0 3px var(--primary-100);
        }

        .hero-section {
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #F6F9FE 0%, #EFF6FF 35%, #F8FAFF 65%, #F0F4FB 100%);
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59, 130, 246, .08) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(6, 182, 212, .05) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
            padding: 48px 16px 56px;
        }
        @media (min-width: 768px) {
            .hero-inner {
                grid-template-columns: 1.1fr .9fr;
                gap: 40px;
                padding: 64px 20px 72px;
            }
        }
        @media (min-width: 1024px) {
            .hero-inner {
                padding: 80px 24px 88px;
                gap: 56px;
            }
        }
        .hero-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.3;
            letter-spacing: .5px;
        }
        @media (min-width: 640px) {
            .hero-title {
                font-size: 34px;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 38px;
            }
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--text-normal);
            margin-top: 12px;
            line-height: 1.75;
            max-width: 600px;
        }
        @media (min-width: 768px) {
            .hero-subtitle {
                font-size: 17px;
            }
        }
        .hero-desc {
            font-size: 15px;
            color: var(--text-weak);
            margin-top: 14px;
            line-height: 1.75;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }
        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual img {
            width: 100%;
            max-width: 520px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-color);
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .hero-meta-item .meta-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
            flex-shrink: 0;
        }

/* roulang page: category1 */
:root {
            --primary-50: #EFF6FF;
            --primary-100: #DBEAFE;
            --primary-200: #BFDBFE;
            --primary-500: #3B82F6;
            --primary-600: #2563EB;
            --primary-700: #1D4ED8;
            --primary-800: #1E40AF;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --text-main: #0F172A;
            --text-strong: #1E293B;
            --text-normal: #334155;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F6F9FE;
            --bg-soft: #F8FAFF;
            --card-bg: #FFFFFF;
            --border-color: #E3EAF3;
            --border-strong: #CBD5E1;
            --shadow-sm: 0 1px 2px rgba(30, 64, 175, .04);
            --shadow-md: 0 6px 18px rgba(30, 64, 175, .06);
            --shadow-lg: 0 12px 32px rgba(30, 64, 175, .08);
            --shadow-xl: 0 18px 44px rgba(30, 64, 175, .10);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-base: 180ms ease;
            --transition-smooth: 240ms cubic-bezier(.4, 0, .2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-normal);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

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

        /* Header / Masthead */
        .masthead {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0 0;
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: var(--shadow-sm);
        }

        .masthead-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .masthead-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .masthead-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-600);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-100);
            margin-right: 2px;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
            white-space: nowrap;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-color);
            width: 100%;
            margin-top: 14px;
        }

        .channel-bar {
            display: flex;
            align-items: center;
            padding: 10px 0;
            flex-wrap: wrap;
        }

        .channel-link a {
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 15px;
            color: var(--text-weak);
            transition: all var(--transition-base);
        }

        .channel-link a:hover {
            color: var(--primary-700);
            background: var(--primary-50);
        }

        .channel-link.active a {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
        }

        .channel-divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            margin: 0 10px;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-strong);
            cursor: pointer;
            transition: background var(--transition-base);
            font-size: 20px;
            line-height: 1;
        }

        .hamburger-btn:hover {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }

        .mobile-menu {
            display: none;
            background: var(--card-bg);
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
        }

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

        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 14px;
            color: var(--text-normal);
            border-bottom: 1px solid var(--border-color);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
            border-radius: 6px;
        }

        .mobile-menu-btn-wrap {
            display: inline-flex;
        }

        @media (max-width: 768px) {
            .masthead-logo {
                font-size: 26px;
            }
            .masthead-tagline {
                font-size: 11px;
                letter-spacing: 1px;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .desktop-channel-bar {
                display: none;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu-btn-wrap {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-weak);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary-600);
        }
        .breadcrumb .sep {
            color: var(--text-faint);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 600;
        }

        /* Section base */
        .section {
            padding: 40px 0;
        }
        .section-head {
            margin-bottom: 28px;
        }
        .section-head h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.3;
            letter-spacing: .2px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* Cards */
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .news-card .news-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--primary-50);
        }
        .news-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .news-card:hover .news-img-wrap img {
            transform: scale(1.03);
        }
        .news-card .news-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .news-card .news-summary {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 14px;
            font-size: 12px;
            color: var(--text-faint);
            flex-wrap: wrap;
        }

        /* Badge / Tag */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
            background: rgba(59, 130, 246, .10);
            color: var(--primary-600);
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .badge:hover {
            background: rgba(59, 130, 246, .18);
            color: var(--primary-700);
        }
        .badge-cyan {
            background: rgba(6, 182, 212, .10);
            color: #0891B2;
        }
        .badge-cyan:hover {
            background: rgba(6, 182, 212, .18);
        }
        .badge-lime {
            background: rgba(163, 230, 53, .18);
            color: #4D7C0F;
        }
        .badge-lime:hover {
            background: rgba(163, 230, 53, .28);
        }

        /* Focus headline */
        .focus-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            transition: all var(--transition-smooth);
        }
        .focus-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
        }
        .focus-card .focus-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-50);
        }
        .focus-card .focus-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .focus-card:hover .focus-img-wrap img {
            transform: scale(1.02);
        }
        .focus-card .focus-body {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .focus-card .focus-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 12px;
        }
        .focus-card .focus-summary {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        @media (max-width: 768px) {
            .focus-card {
                grid-template-columns: 1fr;
            }
            .focus-card .focus-body {
                padding: 20px;
            }
            .focus-card .focus-title {
                font-size: 20px;
            }
        }

        /* Calendar */
        .calendar-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .calendar-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .calendar-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-600);
            letter-spacing: .3px;
            text-transform: uppercase;
            margin-bottom: 6px;
        }
        .calendar-match {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.5;
        }
        .calendar-time {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 4px;
        }

        /* Data metric small */
        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all var(--transition-base);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metric-card .metric-bar {
            width: 3px;
            height: 42px;
            background: var(--primary-600);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .metric-card .metric-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.2;
        }
        .metric-card .metric-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* Sidebar quick news */
        .quick-item {
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: all var(--transition-base);
        }
        .quick-item:hover {
            background: var(--primary-50);
            border-radius: 6px;
            padding-left: 8px;
            padding-right: 8px;
        }
        .quick-item:last-child {
            border-bottom: none;
        }
        .quick-dot {
            width: 6px;
            height: 6px;
            background: var(--primary-500);
            border-radius: 50%;
            margin-top: 8px;
            flex-shrink: 0;
        }
        .quick-text {
            font-size: 14px;
            color: var(--text-normal);
            line-height: 1.6;
        }
        .quick-time {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 2px;
        }

        /* CTA form */
        .cta-box {
            background: var(--primary-50);
            border: 1px solid var(--primary-100);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            box-shadow: var(--shadow-md);
        }
        .cta-box h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            height: 48px;
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            padding: 0 16px;
            font-size: 15px;
            background: var(--card-bg);
            color: var(--text-normal);
            transition: all var(--transition-base);
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--primary-500);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, .15);
        }
        .cta-form button {
            height: 48px;
            padding: 0 28px;
            background: var(--primary-600);
            color: #fff;
            border: none;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .cta-form button:hover {
            background: var(--primary-700);
            box-shadow: var(--shadow-md);
        }
        .cta-form button:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
        }

        /* Tags */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* Button */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--primary-600);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-700);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary {
            background: var(--card-bg);
            color: var(--primary-600);
            border-color: var(--primary-600);
        }
        .btn-secondary:hover {
            background: var(--primary-50);
            border-color: var(--primary-700);
        }

        /* Footer */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 48px 0 0;
            margin-top: auto;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }
        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #F1F5F9;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #E2E8F0;
            margin-bottom: 12px;
            letter-spacing: .3px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: #94A3B8;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: #F1F5F9;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding: 16px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: #64748B;
        }
        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #F1F5F9;
        }

        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-desc {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form button {
                width: 100%;
            }
            .section {
                padding: 28px 0;
            }
            .section-head h2 {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary-50: #EFF6FF;
            --primary-100: #DBEAFE;
            --primary-200: #BFDBFE;
            --primary-500: #3B82F6;
            --primary-600: #2563EB;
            --primary-700: #1D4ED8;
            --primary-800: #1E40AF;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --text-main: #0F172A;
            --text-strong: #1E293B;
            --text-normal: #334155;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F6F9FE;
            --bg-soft: #F8FAFF;
            --card-bg: #FFFFFF;
            --border-color: #E3EAF3;
            --border-strong: #CBD5E1;
            --shadow-sm: 0 1px 2px rgba(30, 64, 175, .04);
            --shadow-md: 0 6px 18px rgba(30, 64, 175, .06);
            --shadow-lg: 0 12px 32px rgba(30, 64, 175, .08);
            --shadow-xl: 0 18px 44px rgba(30, 64, 175, .10);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-base: 180ms ease;
            --transition-smooth: 240ms cubic-bezier(.4, 0, .2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-normal);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 16px;
        }

        @media (min-width: 640px) {
            .container {
                padding: 0 20px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding: 0 24px;
            }
        }

        /* Masthead / Navigation */
        .masthead {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0 0;
            position: relative;
            z-index: 50;
            box-shadow: var(--shadow-sm);
        }

        .masthead-inner {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .masthead-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .masthead-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-600);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-100);
            margin-right: 2px;
            flex-shrink: 0;
        }

        .masthead-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
            white-space: nowrap;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-color);
            width: 100%;
        }

        .channel-bar {
            display: none;
            align-items: center;
            flex-wrap: wrap;
            gap: 0;
            padding-bottom: 14px;
        }

        @media (min-width: 768px) {
            .channel-bar.desktop-channel-bar {
                display: flex;
            }
        }

        .channel-link a {
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 15px;
            color: var(--text-weak);
            font-weight: 500;
            transition: color var(--transition-base), background var(--transition-base);
        }

        .channel-link a:hover {
            color: var(--primary-700);
            background: var(--primary-50);
        }

        .channel-link.active a {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
        }

        .channel-divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            margin: 0 12px;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-strong);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
            font-size: 20px;
            line-height: 1;
        }

        .hamburger-btn:hover {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }

        .mobile-menu-btn-wrap {
            display: inline-flex;
        }

        @media (min-width: 768px) {
            .mobile-menu-btn-wrap {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            background: var(--card-bg);
            border-top: 1px solid var(--border-color);
            padding: 12px 0;
            margin-top: 0;
        }

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

        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 14px;
            color: var(--text-normal);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base), color var(--transition-base);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
            border-radius: 6px;
        }

        @media (max-width: 767px) {
            .masthead-logo {
                font-size: 26px;
            }
            .masthead-tagline {
                font-size: 11px;
                letter-spacing: 1px;
            }
        }

        /* Footer */
        .footer {
            background: #0F172A;
            color: #E2E8F0;
            margin-top: auto;
            padding: 48px 0 0;
        }

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

        @media (min-width: 640px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 40px;
            }
        }

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: .5px;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: #CBD5E1;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: #60A5FA;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .2);
            padding: 18px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #94A3B8;
            text-align: center;
        }

        .footer-bottom a {
            color: #CBD5E1;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #60A5FA;
        }

        /* Section base */
        .section {
            padding: 48px 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 64px 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 80px 0;
            }
        }

        .section-soft {
            background: var(--bg-soft);
        }

        .section-white {
            background: var(--card-bg);
        }

        /* Category H1 compact header */
        .category-header {
            padding: 32px 0 28px;
            border-bottom: 1px solid var(--border-color);
            background: var(--bg-soft);
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--primary-700);
        }

        .breadcrumb .sep {
            color: var(--text-faint);
            margin: 0 2px;
        }

        .category-header h1 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .3px;
            line-height: 1.35;
            margin-bottom: 10px;
        }

        @media (min-width: 768px) {
            .category-header h1 {
                font-size: 30px;
            }
        }

        .category-header p {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 720px;
            line-height: 1.75;
        }

        /* Card system */
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-base);
        }

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

        .card-body {
            padding: 20px;
        }

        @media (min-width: 768px) {
            .card-body {
                padding: 24px;
            }
        }

        /* Metric cards */
        .metric-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        @media (min-width: 640px) {
            .metric-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }

        @media (min-width: 1024px) {
            .metric-grid {
                grid-template-columns: repeat(6, 1fr);
            }
        }

        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-600);
            border-radius: 0 2px 2px 0;
        }

        .metric-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .metric-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.2;
            letter-spacing: .3px;
        }

        @media (min-width: 768px) {
            .metric-value {
                font-size: 32px;
            }
        }

        .metric-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
            letter-spacing: .3px;
        }

        /* Article list */
        .article-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 640px) {
            .article-list {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .article-list {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 24px;
            }
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .article-card img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }

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

        .article-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
            letter-spacing: .2px;
        }

        @media (min-width: 768px) {
            .article-card h3 {
                font-size: 18px;
            }
        }

        .article-card .article-meta {
            font-size: 13px;
            color: var(--text-faint);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-card .article-excerpt {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: var(--primary-50);
            color: var(--primary-700);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .3px;
            white-space: nowrap;
        }

        .badge-cyan {
            background: rgba(6, 182, 212, .1);
            color: #0891B2;
        }

        /* Ranking table */
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        .ranking-table thead {
            background: var(--bg-soft);
        }

        .ranking-table th {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-weak);
            text-align: left;
            padding: 14px 16px;
            letter-spacing: .5px;
            border-bottom: 1px solid var(--border-color);
        }

        .ranking-table td {
            font-size: 14px;
            color: var(--text-normal);
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-color);
        }

        .ranking-table tr:last-child td {
            border-bottom: none;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-base);
        }

        .ranking-table tbody tr:hover {
            background: var(--primary-50);
        }

        .rank-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-50);
            color: var(--primary-700);
            font-weight: 700;
            font-size: 13px;
        }

        .rank-num.top1 {
            background: var(--primary-600);
            color: #fff;
        }

        /* Hot indicators */
        .indicator-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        @media (min-width: 640px) {
            .indicator-list {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (min-width: 1024px) {
            .indicator-list {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }

        .indicator-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .indicator-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .indicator-item .indicator-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .indicator-item .indicator-desc {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        .indicator-item .indicator-highlight {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary-700);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: .3px;
        }

        /* CTA / Subscribe */
        .subscribe-cta {
            background: var(--primary-50);
            border: 1px solid var(--primary-100);
            border-radius: var(--radius-xl);
            padding: 32px 24px;
            text-align: center;
        }

        @media (min-width: 768px) {
            .subscribe-cta {
                padding: 48px 40px;
            }
        }

        .subscribe-cta h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 8px;
            letter-spacing: .2px;
        }

        @media (min-width: 768px) {
            .subscribe-cta h2 {
                font-size: 26px;
            }
        }

        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 520px;
            margin: 0 auto 20px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }

        @media (min-width: 640px) {
            .subscribe-form {
                flex-direction: row;
                gap: 10px;
            }
        }

        .subscribe-form input {
            flex: 1;
            height: 48px;
            padding: 0 16px;
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            background: var(--card-bg);
            font-size: 15px;
            color: var(--text-normal);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            min-width: 0;
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary-600);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
        }

        .subscribe-form input::placeholder {
            color: var(--text-faint);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 20px;
            height: 44px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
            letter-spacing: .2px;
            white-space: nowrap;
            border: none;
        }

        .btn-primary {
            background: var(--primary-600);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--primary-700);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            background: var(--primary-800);
        }

        .btn-subscribe {
            height: 48px;
            padding: 0 28px;
            background: var(--primary-600);
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
        }

        .btn-subscribe:hover {
            background: var(--primary-700);
            box-shadow: var(--shadow-md);
        }

        .btn-subscribe:active {
            background: var(--primary-800);
        }

        /* Section heading */
        .section-heading {
            margin-bottom: 24px;
        }

        @media (min-width: 768px) {
            .section-heading {
                margin-bottom: 32px;
            }
        }

        .section-heading h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .3px;
            line-height: 1.35;
            margin-bottom: 6px;
        }

        @media (min-width: 768px) {
            .section-heading h2 {
                font-size: 26px;
            }
        }

        .section-heading p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            max-width: 640px;
        }

        /* Divider line */
        .divider-light {
            height: 1px;
            background: var(--border-color);
            width: 100%;
            margin: 8px 0 16px;
        }

        /* Data methodology */
        .methodology-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        @media (min-width: 640px) {
            .methodology-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (min-width: 1024px) {
            .methodology-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .methodology-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
        }

        .methodology-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .methodology-item p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        /* Main content spacing */
        main {
            flex: 1;
            width: 100%;
        }

/* roulang page: category3 */
:root {
            --primary-50: #EFF6FF;
            --primary-100: #DBEAFE;
            --primary-200: #BFDBFE;
            --primary-500: #3B82F6;
            --primary-600: #2563EB;
            --primary-700: #1D4ED8;
            --primary-800: #1E40AF;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --text-main: #0F172A;
            --text-strong: #1E293B;
            --text-normal: #334155;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F6F9FE;
            --bg-soft: #F8FAFF;
            --card-bg: #FFFFFF;
            --border-color: #E3EAF3;
            --border-strong: #CBD5E1;
            --shadow-sm: 0 1px 2px rgba(30, 64, 175, .04);
            --shadow-md: 0 6px 18px rgba(30, 64, 175, .06);
            --shadow-lg: 0 12px 32px rgba(30, 64, 175, .08);
            --shadow-xl: 0 18px 44px rgba(30, 64, 175, .10);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-base: 180ms ease;
            --transition-smooth: 240ms cubic-bezier(.4, 0, .2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-normal);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Masthead */
        .masthead {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0 12px;
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 2px 8px rgba(30, 64, 175, .04);
        }

        .masthead-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .masthead-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .masthead-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-600);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-100);
            margin-right: 2px;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
            white-space: nowrap;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-color);
            width: 100%;
            margin: 10px 0 8px;
        }

        .channel-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0;
        }

        .channel-link a {
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            transition: all var(--transition-base);
            display: inline-block;
        }

        .channel-link a:hover {
            color: var(--primary-700);
            background: var(--primary-50);
        }

        .channel-link.active a {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
        }

        .channel-divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            margin: 0 10px;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-strong);
            cursor: pointer;
            transition: all var(--transition-base);
            font-size: 20px;
            line-height: 1;
        }

        .hamburger-btn:hover {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }

        .mobile-menu {
            display: none;
            background: var(--card-bg);
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
        }

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

        .mobile-menu .container {
            max-width: 1280px;
            padding: 0 24px;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 14px;
            color: var(--text-normal);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
            border-radius: 6px;
        }

        .mobile-menu-btn-wrap {
            display: none;
        }

        /* Section base */
        .section {
            padding: 48px 0;
        }

        .section-sm {
            padding: 32px 0;
        }

        .section-lg {
            padding: 64px 0;
        }

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

        /* Category hero */
        .category-hero {
            padding: 36px 0 24px;
            border-bottom: 1px solid var(--border-color);
            background: var(--card-bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 14px;
        }

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

        .breadcrumb a:hover {
            color: var(--primary-700);
        }

        .breadcrumb-sep {
            color: var(--text-faint);
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: .3px;
        }

        .category-hero .subtitle {
            font-size: 16px;
            color: var(--text-weak);
            max-width: 720px;
            line-height: 1.7;
        }

        .category-hero .thin-line {
            height: 2px;
            width: 56px;
            background: var(--primary-600);
            border-radius: 2px;
            margin-top: 16px;
        }

        /* Card styles */
        .guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
            border-color: var(--primary-200);
        }

        .guide-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-soft);
            flex-shrink: 0;
        }

        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

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

        .guide-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-700);
            background: var(--primary-50);
            border-radius: var(--radius-full);
            padding: 3px 10px;
            margin-bottom: 8px;
            width: fit-content;
        }

        .guide-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.45;
            margin-bottom: 6px;
        }

        .guide-card-excerpt {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }

        .guide-card-meta {
            font-size: 12px;
            color: var(--text-faint);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* Feature card / topic card */
        .topic-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 22px 20px;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .topic-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-200);
        }

        .topic-card-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-50);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--primary-600);
        }

        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .topic-card .topic-count {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-600);
            background: var(--primary-50);
            border-radius: var(--radius-full);
            padding: 2px 8px;
            margin-top: 8px;
        }

        /* Step list */
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .step-item:last-child {
            border-bottom: none;
        }

        .step-number {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-600);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .step-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-700);
            background: var(--primary-50);
            border: 1px solid var(--primary-100);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .tag-pill:hover {
            background: var(--primary-100);
            border-color: var(--primary-200);
            transform: translateY(-1px);
        }

        /* Term / tool area */
        .term-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .term-column {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
        }

        .term-column h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary-100);
        }

        .term-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 14px;
        }

        .term-item:last-child {
            border-bottom: none;
        }

        .term-item .term-name {
            font-weight: 600;
            color: var(--text-normal);
        }

        .term-item .term-desc {
            color: var(--text-weak);
            font-size: 13px;
            max-width: 60%;
            text-align: right;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--primary-50) 0%, #F0F7FF 100%);
            border: 1px solid var(--primary-100);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            text-align: center;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(59, 130, 246, .08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .subscribe-cta h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-weak);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            height: 48px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            background: var(--card-bg);
            font-size: 14px;
            color: var(--text-normal);
            transition: all var(--transition-base);
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary-600);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
        }

        .subscribe-form button {
            height: 48px;
            padding: 0 28px;
            border: none;
            border-radius: 10px;
            background: var(--primary-600);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--primary-700);
            transform: translateY(-1px);
            box-shadow: var(--shadow-lg);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border: none;
            border-radius: 10px;
            background: var(--primary-600);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-700);
            transform: translateY(-1px);
            box-shadow: var(--shadow-lg);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border: 1px solid var(--primary-600);
            border-radius: 10px;
            background: var(--card-bg);
            color: var(--primary-600);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--primary-50);
            border-color: var(--primary-700);
            color: var(--primary-700);
        }

        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-600);
            padding: 6px 12px;
            border-radius: 8px;
            transition: all var(--transition-base);
        }

        .btn-more:hover {
            background: var(--primary-50);
            color: var(--primary-700);
        }

        /* Footer */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 48px 0 0;
            margin-top: auto;
        }

        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: .5px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col a {
            font-size: 13px;
            color: #94A3B8;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: #DBEAFE;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .15);
            padding: 16px 0;
        }

        .footer-bottom .container {
            max-width: 1280px;
            padding: 0 24px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: #64748B;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #DBEAFE;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .term-block {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .masthead-logo {
                font-size: 26px;
            }
            .masthead-tagline {
                font-size: 11px;
                letter-spacing: 1px;
            }
            .desktop-channel-bar {
                display: none;
            }
            .mobile-menu-btn-wrap {
                display: inline-flex;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .channel-divider {
                display: none;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .subtitle {
                font-size: 14px;
            }
            .guide-card-title {
                font-size: 16px;
            }
            .subscribe-cta {
                padding: 28px 20px;
            }
            .subscribe-cta h2 {
                font-size: 20px;
            }
            .term-item {
                flex-direction: column;
                gap: 4px;
                align-items: flex-start;
            }
            .term-item .term-desc {
                max-width: 100%;
                text-align: left;
            }
            .section {
                padding: 32px 0;
            }
            .section-lg {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .masthead-inner {
                padding: 0 16px;
            }
            .footer-inner {
                padding: 0 16px 28px;
            }
            .footer-bottom .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 24px 0 16px;
            }
            .guide-card-body {
                padding: 14px 16px 16px;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .subscribe-form button {
                width: 100%;
            }
            .step-item {
                gap: 12px;
            }
            .step-number {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --primary-50: #EFF6FF;
            --primary-100: #DBEAFE;
            --primary-200: #BFDBFE;
            --primary-500: #3B82F6;
            --primary-600: #2563EB;
            --primary-700: #1D4ED8;
            --primary-800: #1E40AF;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --text-main: #0F172A;
            --text-strong: #1E293B;
            --text-normal: #334155;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F6F9FE;
            --bg-soft: #F8FAFF;
            --card-bg: #FFFFFF;
            --border-color: #E3EAF3;
            --border-strong: #CBD5E1;
            --shadow-sm: 0 1px 2px rgba(30, 64, 175, .04);
            --shadow-md: 0 6px 18px rgba(30, 64, 175, .06);
            --shadow-lg: 0 12px 32px rgba(30, 64, 175, .08);
            --shadow-xl: 0 18px 44px rgba(30, 64, 175, .10);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-base: 180ms ease;
            --transition-smooth: 240ms cubic-bezier(.4, 0, .2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-normal);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 杂志刊头导航 ===== */
        .masthead {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0 0;
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: var(--shadow-sm);
        }

        .masthead-inner {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .masthead-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .masthead-logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: .5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-base);
        }

        .masthead-logo:hover {
            color: var(--primary-700);
        }

        .masthead-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background: var(--primary-600);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-100);
            margin-right: 2px;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
            white-space: nowrap;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-color);
            width: 100%;
        }

        .channel-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            padding-bottom: 10px;
        }

        .channel-link a {
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 15px;
            color: var(--text-weak);
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }

        .channel-link a:hover {
            color: var(--primary-700);
            background: var(--primary-50);
        }

        .channel-link.active a {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
        }

        .channel-divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            margin: 0 10px;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-strong);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
            font-size: 20px;
            line-height: 1;
        }

        .hamburger-btn:hover {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }

        .mobile-menu {
            display: none;
            background: var(--card-bg);
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
        }

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

        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 14px;
            color: var(--text-normal);
            border-bottom: 1px solid var(--border-color);
            transition: color var(--transition-base), background var(--transition-base);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover {
            color: var(--primary-700);
        }

        .mobile-menu a.active {
            color: var(--primary-700);
            font-weight: 700;
            background: var(--primary-50);
            border-radius: 6px;
        }

        @media (max-width: 767px) {
            .masthead-logo {
                font-size: 26px;
            }
            .masthead-tagline {
                font-size: 11px;
                letter-spacing: 1px;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .desktop-channel-bar {
                display: none;
            }
        }

        @media (min-width: 768px) {
            .mobile-menu-btn-wrap {
                display: none;
            }
        }

        /* ===== 分类页 H1 区（矮、轻） ===== */
        .page-head {
            background: var(--bg-soft);
            border-bottom: 1px solid var(--border-color);
            padding: 28px 0 20px;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--primary-700);
        }

        .breadcrumb .sep {
            color: var(--border-strong);
            user-select: none;
        }

        .page-head h1 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .page-head .subtitle {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            max-width: 680px;
        }

        @media (min-width: 768px) {
            .page-head h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 480px) {
            .page-head h1 {
                font-size: 24px;
            }
            .page-head .subtitle {
                font-size: 14px;
            }
        }

        /* ===== 通用 section ===== */
        .section {
            padding: 36px 0;
        }

        .section-alt {
            background: var(--bg-soft);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-700);
            background: var(--primary-50);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 8px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
            max-width: 720px;
            margin-bottom: 20px;
        }

        @media (min-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 52px 0;
            }
        }

        /* ===== 筛选标签 ===== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            cursor: pointer;
            transition: all var(--transition-base);
            user-select: none;
        }

        .filter-tag:hover {
            color: var(--primary-700);
            border-color: var(--primary-200);
            background: var(--primary-50);
        }

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

        .filter-tag.active:hover {
            background: var(--primary-700);
            border-color: var(--primary-700);
        }

        /* ===== 选手卡片 ===== */
        .player-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        @media (min-width: 640px) {
            .player-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .player-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .player-grid:has(.player-card:nth-child(4)) {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .player-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition-smooth), transform var(--transition-smooth), border-color var(--transition-base);
        }

        .player-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary-200);
        }

        .player-card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-50);
            position: relative;
        }

        .player-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

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

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

        .player-name-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 4px;
        }

        .player-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
        }

        .player-team {
            font-size: 13px;
            color: var(--text-faint);
            font-weight: 500;
        }

        .player-role-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-700);
            background: var(--primary-50);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
        }

        .player-stats-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 10px;
            border-top: 1px solid var(--border-color);
        }

        .player-stat {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }

        .player-stat-value {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.2;
        }

        .player-stat-label {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* ===== 对比卡片 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

        @media (min-width: 640px) {
            .compare-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .compare-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .compare-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .compare-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-200);
        }

        .compare-vs {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 10px;
        }

        .compare-vs .vs-badge {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            font-size: 11px;
            font-weight: 800;
            color: #fff;
            background: var(--accent-cyan);
            border-radius: 50%;
        }

        .compare-metric {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 7px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 14px;
        }

        .compare-metric:last-child {
            border-bottom: none;
        }

        .compare-metric-label {
            color: var(--text-weak);
        }

        .compare-metric-values {
            display: flex;
            gap: 14px;
            font-weight: 600;
            color: var(--text-strong);
        }

        .compare-metric-values .val-a {
            color: var(--primary-700);
        }

        .compare-metric-values .val-b {
            color: var(--text-strong);
        }

        /* ===== 焦点选手横卡 ===== */
        .focus-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

        @media (min-width: 768px) {
            .focus-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .focus-card {
            display: flex;
            gap: 14px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 14px 16px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
            align-items: center;
        }

        .focus-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-200);
        }

        .focus-avatar {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            overflow: hidden;
            background: var(--primary-50);
            border: 2px solid var(--primary-100);
        }

        .focus-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .focus-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 2px;
        }

        .focus-desc {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        .focus-highlight {
            flex-shrink: 0;
            text-align: right;
        }

        .focus-highlight-value {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-700);
            line-height: 1.2;
        }

        .focus-highlight-label {
            font-size: 11px;
            color: var(--text-faint);
        }

        /* ===== 经典战役列表 ===== */
        .battle-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .battle-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .battle-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-200);
        }

        .battle-date {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-faint);
            min-width: 80px;
        }

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

        .battle-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 2px;
        }

        .battle-meta {
            font-size: 13px;
            color: var(--text-weak);
        }

        .battle-result {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--primary-50);
            color: var(--primary-700);
        }

        /* ===== 订阅 CTA ===== */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--primary-50) 0%, #E0EAFF 100%);
            border: 1px solid var(--primary-100);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            text-align: center;
        }

        .subscribe-cta h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-weak);
            margin-bottom: 16px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            height: 48px;
            padding: 0 16px;
            font-size: 15px;
            color: var(--text-normal);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: var(--text-faint);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary-500);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, .15);
        }

        .subscribe-btn {
            height: 48px;
            padding: 0 24px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--primary-600);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background: var(--primary-700);
            box-shadow: var(--shadow-md);
        }

        .subscribe-btn:active {
            background: var(--primary-800);
            box-shadow: none;
        }

        /* ===== 查看更多按钮 ===== */
        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-700);
            padding: 6px 12px;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .link-more:hover {
            background: var(--primary-50);
        }

        .link-more .arrow {
            font-size: 18px;
            line-height: 1;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            margin-top: auto;
            padding-top: 40px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
            padding-bottom: 28px;
        }

        @media (min-width: 640px) {
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1.4fr 1fr 1fr 1fr;
            }
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: .5px;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #F1F5F9;
            margin-bottom: 10px;
            letter-spacing: .5px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 7px;
        }

        .footer-col a {
            font-size: 14px;
            color: #94A3B8;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding: 14px 0;
        }

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

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #CBD5E1;
        }

        /* ===== 主内容区 ===== */
        main {
            flex: 1;
        }