/* roulang page: index */
:root {
            --bg-primary: #0E1210;
            --bg-secondary: #161B17;
            --bg-card: #1A211C;
            --brand-green: #2DD45C;
            --brand-green-bright: #3BFF66;
            --text-primary: #F2F5EF;
            --text-secondary: #8C948A;
            --text-muted: #5C635C;
            --accent-amber: #E8A33D;
            --border-dark: #2A302C;
            --border-light: #3A423C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
            --nav-height: 64px;
            --section-pad-desktop: 112px;
            --section-pad-mobile: 64px;
            --container-max: 1200px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-green);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        ::selection {
            background: rgba(45, 212, 92, 0.28);
            color: var(--text-primary);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(14, 18, 16, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            background: rgba(14, 18, 16, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

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

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: #0A0D0B;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--brand-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(45, 212, 92, 0.08);
        }

        .nav-link.active {
            color: var(--brand-green);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--brand-green);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-green);
            white-space: nowrap;
        }

        .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-green-bright);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(59, 255, 102, 0.5);
                transform: scale(1);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(59, 255, 102, 0);
                transform: scale(1.15);
            }
        }

        .notify-bell {
            position: relative;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-secondary);
            transition: color var(--transition-fast), background var(--transition-fast);
            flex-shrink: 0;
        }

        .notify-bell:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .notify-bell::after {
            content: '';
            position: absolute;
            top: 6px;
            right: 7px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-amber);
            border: 2px solid var(--bg-primary);
        }

        .btn-nav {
            padding: 8px 18px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
        }

        .btn-nav:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 212, 92, 0.35);
            color: #0A0D0B;
        }

        .btn-nav:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform var(--transition-smooth), opacity var(--transition-fast);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 8px;
                font-size: 13px;
            }
        }

        @media (max-width: 860px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-dark);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform var(--transition-smooth), opacity var(--transition-fast);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(45, 212, 92, 0.1);
            }
            .live-indicator span {
                display: none;
            }
            .btn-nav {
                padding: 8px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .nav-logo .logo-text {
                font-size: 15px;
            }
            .notify-bell {
                display: none;
            }
            .btn-nav {
                padding: 7px 10px;
                font-size: 11px;
            }
            .live-indicator {
                font-size: 10px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 80px 0 100px;
            background: var(--bg-primary);
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(45, 212, 92, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(45, 212, 92, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(45, 212, 92, 0.07), transparent 65%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(45, 212, 92, 0.1);
            border: 1px solid rgba(45, 212, 92, 0.3);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-green);
            width: fit-content;
        }

        .hero-badge .live-dot {
            width: 7px;
            height: 7px;
        }

        .hero h1 {
            font-size: 54px;
            font-weight: 800;
            letter-spacing: -0.025em;
            line-height: 1.22;
            color: var(--text-primary);
            margin: 0;
        }

        .hero h1 .highlight {
            color: var(--brand-green);
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0;
        }

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

        .btn-primary {
            padding: 14px 28px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: var(--shadow-btn);
            letter-spacing: -0.01em;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(45, 212, 92, 0.4);
            color: #0A0D0B;
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

        .btn-secondary {
            padding: 13px 26px;
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-secondary:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .hero-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-meta .num {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--accent-amber);
            font-size: 15px;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-dark);
            min-height: 380px;
            background: var(--bg-secondary);
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
            transition: transform 0.6s ease;
        }

        .hero-visual:hover img {
            transform: scale(1.03);
        }

        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 20px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .hero-visual-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .hero-visual-label .tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 11px;
            font-weight: 700;
            border-radius: 999px;
            margin-right: 8px;
        }

        .live-counter {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-amber);
            white-space: nowrap;
        }

        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 42px;
            }
            .hero-grid {
                gap: 36px;
            }
        }

        @media (max-width: 820px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero {
                padding: 48px 0 64px;
            }
            .hero h1 {
                font-size: 36px;
                line-height: 1.3;
            }
            .hero-visual {
                min-height: 260px;
            }
            .hero-visual img {
                min-height: 260px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-secondary {
                text-align: center;
            }
            .hero-visual {
                min-height: 200px;
            }
            .hero-visual img {
                min-height: 200px;
            }
        }

        /* ===== Live Status Bar ===== */
        .live-status-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-dark);
            padding: 14px 0;
        }

        .live-status-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .live-match-item {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            min-width: 220px;
        }

        .live-match-teams {
            font-weight: 700;
            font-size: 14px;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .live-match-score {
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 18px;
            color: var(--accent-amber);
            letter-spacing: 0.02em;
        }

        .live-match-status {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(45, 212, 92, 0.12);
            color: var(--brand-green);
            white-space: nowrap;
        }

        .live-match-status.upcoming {
            background: rgba(232, 163, 61, 0.12);
            color: var(--accent-amber);
        }

        .live-match-status.ended {
            background: rgba(140, 148, 138, 0.15);
            color: var(--text-muted);
        }

        .live-countdown {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .live-countdown .time {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 15px;
            color: var(--text-primary);
        }

        @media (max-width: 768px) {
            .live-status-inner {
                gap: 8px;
            }
            .live-match-item {
                min-width: 100%;
                justify-content: space-between;
            }
            .live-countdown {
                width: 100%;
                justify-content: space-between;
            }
        }

        /* ===== Sections Common ===== */
        section {
            padding: var(--section-pad-desktop) 0;
        }

        @media (max-width: 768px) {
            section {
                padding: var(--section-pad-mobile) 0;
            }
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header h2 .highlight {
            color: var(--brand-green);
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-green);
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ===== Services Grid ===== */
        .services-section {
            background: var(--bg-primary);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .service-card:hover {
            border-color: rgba(45, 212, 92, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .service-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(45, 212, 92, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-green);
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

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

        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Stats Strip ===== */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 12px 8px;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 44px;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 32px;
            }
        }

        /* ===== Deep Content Sections ===== */
        .deep-content-section {
            background: var(--bg-primary);
        }

        .deep-content-section.alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .deep-content-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .deep-content-wrapper h2 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 24px;
            line-height: 1.3;
        }

        .deep-content-wrapper h2 .highlight {
            color: var(--brand-green);
        }

        .deep-content-wrapper h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 28px 0 12px;
            letter-spacing: -0.01em;
        }

        .deep-content-wrapper p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2.0;
            margin-bottom: 18px;
        }

        .deep-content-wrapper p strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .deep-content-wrapper h2 {
                font-size: 26px;
            }
            .deep-content-wrapper h3 {
                font-size: 18px;
            }
            .deep-content-wrapper p {
                font-size: 15px;
                line-height: 1.9;
            }
        }

        /* ===== Steps / Timeline ===== */
        .steps-section {
            background: var(--bg-primary);
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            counter-reset: step-counter;
        }

        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-dark);
            counter-increment: step-counter;
            position: relative;
        }

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

        .step-number {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(45, 212, 92, 0.1);
            border: 1px solid rgba(45, 212, 92, 0.35);
            color: var(--brand-green);
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .step-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 620px;
        }

        @media (max-width: 520px) {
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 0;
            }
        }

        /* ===== Case Cards ===== */
        .cases-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

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

        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dark);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .case-card-img {
            width: 100%;
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

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

        .case-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .case-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .text-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-green);
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .text-link:hover {
            color: var(--brand-green-bright);
            text-decoration: underline;
        }

        @media (max-width: 1024px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .cases-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== News Section ===== */
        .news-section {
            background: var(--bg-primary);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dark);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }

        .news-item:hover {
            border-color: rgba(45, 212, 92, 0.3);
            transform: translateX(4px);
        }

        .news-date {
            flex-shrink: 0;
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-amber);
            white-space: nowrap;
            padding-top: 2px;
        }

        .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .news-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .btn-read-more {
            align-self: flex-start;
            padding: 7px 14px;
            background: transparent;
            border: 1px solid rgba(45, 212, 92, 0.4);
            color: var(--brand-green);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .btn-read-more:hover {
            background: var(--brand-green);
            color: #0A0D0B;
            border-color: var(--brand-green);
        }

        @media (max-width: 640px) {
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .btn-read-more {
                align-self: flex-start;
            }
        }

        /* ===== Brand Intro ===== */
        .brand-intro-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .brand-intro-box {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
            padding: 40px 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dark);
        }

        .brand-intro-box h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .brand-intro-box p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2.0;
            text-align: left;
            margin-bottom: 12px;
        }

        @media (max-width: 768px) {
            .brand-intro-box {
                padding: 24px 18px;
            }
            .brand-intro-box h2 {
                font-size: 24px;
            }
        }

        /* ===== Partners ===== */
        .partners-section {
            background: var(--bg-primary);
        }

        .partners-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 16px 28px;
            padding: 24px 0;
        }

        .partner-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted);
            padding: 10px 18px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), border-color var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .partner-name:hover {
            color: var(--text-primary);
            border-color: var(--border-light);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-dark);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

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

        .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
            transition: transform var(--transition-smooth);
        }

        .faq-arrow::before,
        .faq-arrow::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background: currentColor;
            border-radius: 2px;
            transition: transform var(--transition-smooth);
        }

        .faq-arrow::before {
            width: 12px;
            height: 2px;
            transform: translate(-50%, -50%);
        }

        .faq-arrow::after {
            width: 2px;
            height: 12px;
            transform: translate(-50%, -50%);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth), opacity var(--transition-fast);
            opacity: 0;
        }

        .faq-item.open .faq-answer {
            opacity: 1;
            padding: 0 4px 18px;
        }

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

        /* ===== Guarantee Strip ===== */
        .guarantee-section {
            background: var(--bg-primary);
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dark);
            transition: border-color var(--transition-fast);
        }

        .guarantee-item:hover {
            border-color: rgba(45, 212, 92, 0.35);
        }

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

        .guarantee-item span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        @media (max-width: 1024px) {
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
            padding: 72px 0;
        }

        .cta-box {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 48px 32px;
            background: linear-gradient(135deg, rgba(45, 212, 92, 0.06), rgba(45, 212, 92, 0.02));
            border: 1px solid rgba(45, 212, 92, 0.25);
            border-radius: var(--radius-lg);
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.85;
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .cta-section {
                padding: 48px 0;
            }
        }

        /* ===== Quick Entries ===== */
        .quick-entries-section {
            background: var(--bg-primary);
        }

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

        .quick-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-dark);
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .quick-card:hover {
            transform: translateY(-4px);
            border-color: rgba(45, 212, 92, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .quick-card .quick-icon {
            font-size: 28px;
        }

        .quick-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .quick-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .quick-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .quick-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

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

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-beian {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 24px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-beian a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-beian a:hover {
            color: var(--brand-green);
        }

        .footer-copyright {
            font-size: 12px;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0E1210;
  --bg-secondary: #161B17;
  --bg-card: #1A211C;
  --brand-green: #2DD45C;
  --brand-green-bright: #3BFF66;
  --text-primary: #F2F5EF;
  --text-secondary: #8C948A;
  --text-muted: #5C635C;
  --accent-amber: #E8A33D;
  --border-dark: #2A302C;
  --border-light: #3A423C;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
  --nav-height: 64px;
  --section-pad-desktop: 112px;
  --section-pad-mobile: 64px;
  --container-max: 1200px;
  --transition-fast: 0.18s ease;
  --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--brand-green);
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}
button {
  cursor: pointer;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--brand-green);
  outline-offset: 3px;
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(14, 18, 16, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-dark);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}
.site-header.scrolled {
  background: rgba(14, 18, 16, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #0A0D0B;
  flex-shrink: 0;
}
.logo-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}
.logo-text span {
  color: var(--brand-green);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  position: relative;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(45, 212, 92, 0.08);
}
.nav-link.active {
  color: var(--brand-green);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--brand-green);
  border-radius: 2px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.btn-nav {
  padding: 8px 18px;
  background: var(--brand-green);
  color: #0A0D0B;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  box-shadow: var(--shadow-btn);
}
.btn-nav:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  color: #0A0D0B;
}
.live-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--brand-green);
  font-weight: 600;
  white-space: nowrap;
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-green-bright);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(59, 255, 102, 0.6);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 0 6px rgba(59, 255, 102, 0);
    opacity: 0.7;
  }
}
.notify-bell {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  position: relative;
  transition: border-color var(--transition-fast);
}
.notify-bell:hover {
  border-color: var(--brand-green);
}
.notify-bell::after {
  content: '';
  position: absolute;
  top: 8px;
  right: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-amber);
}
.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dark);
  background: var(--bg-card);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* ===== Page Header ===== */
.page-header {
  padding: 64px 0 40px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-dark);
}
.page-header-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 780px;
}
.page-header h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
  margin: 0;
}
.page-header p {
  font-size: 17px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.9;
}
/* ===== Section Common ===== */
.section {
  padding: var(--section-pad-desktop) 0;
}
.section-alt {
  background: var(--bg-secondary);
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0 0 8px;
}
.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 40px;
  line-height: 1.8;
}
/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--brand-green);
  color: #0A0D0B;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-btn);
  white-space: nowrap;
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  color: #0A0D0B;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.btn-secondary:hover {
  border-color: var(--brand-green);
  color: var(--brand-green);
  transform: translateY(-2px);
}
.btn-outline-green {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--brand-green);
  color: var(--brand-green);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.btn-outline-green:hover {
  background: var(--brand-green);
  color: #0A0D0B;
}
/* ===== Match Cards ===== */
.match-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.match-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
  position: relative;
}
.match-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-green);
  box-shadow: var(--shadow-card-hover);
}
.match-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-weight: 500;
  letter-spacing: 0.4px;
}
.match-teams {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.match-team {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}
.match-vs {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}
.match-score {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-amber);
  letter-spacing: 0.3px;
}
.match-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.match-status.live {
  background: rgba(45, 212, 92, 0.12);
  color: var(--brand-green);
  border: 1px solid rgba(45, 212, 92, 0.25);
}
.match-status.upcoming {
  background: rgba(232, 163, 61, 0.1);
  color: var(--accent-amber);
  border: 1px solid rgba(232, 163, 61, 0.2);
}
.match-status.ended {
  background: rgba(92, 99, 92, 0.15);
  color: var(--text-secondary);
  border: 1px solid var(--border-dark);
}
.match-card .btn-outline-green {
  width: 100%;
  text-align: center;
  margin-top: 4px;
}
/* ===== Filter Tags ===== */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.filter-tag {
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border-dark);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}
.filter-tag:hover {
  border-color: var(--brand-green);
  color: var(--brand-green);
}
.filter-tag.active {
  background: var(--brand-green);
  color: #0A0D0B;
  border-color: var(--brand-green);
  font-weight: 700;
}
/* ===== Deep Content Section ===== */
.deep-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.deep-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 24px;
  line-height: 1.4;
}
.deep-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin: 0 0 20px;
}
/* ===== Featured Match Cards ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.featured-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
}
.featured-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-green);
  box-shadow: var(--shadow-card-hover);
}
.featured-card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.featured-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}
.featured-card:hover .featured-card-image img {
  transform: scale(1.04);
}
.featured-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 18, 16, 0) 60%, rgba(14, 18, 16, 0.85) 100%);
}
.featured-card-image .featured-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  background: var(--brand-green);
  color: #0A0D0B;
}
.featured-card-body {
  padding: 20px;
}
.featured-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.5;
}
.featured-card-body p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 16px;
  line-height: 1.7;
}
.featured-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
/* ===== Standing Table ===== */
.standing-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow-x: auto;
}
.standing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}
.standing-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-dark);
  letter-spacing: 0.4px;
}
.standing-table td {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 12px;
  border-bottom: 1px solid var(--border-dark);
}
.standing-table tr:last-child td {
  border-bottom: none;
}
.standing-table tr:hover td {
  color: var(--text-primary);
  background: rgba(45, 212, 92, 0.04);
}
.standing-table td:first-child {
  color: var(--text-primary);
  font-weight: 600;
}
.standing-table .rank-1,
.standing-table .rank-2,
.standing-table .rank-3,
.standing-table .rank-4 {
  font-weight: 700;
  color: var(--brand-green);
}
/* ===== CTA Box ===== */
.cta-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.cta-box h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}
.cta-box p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
  max-width: 480px;
  line-height: 1.8;
}
/* ===== Related News List ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.news-list-item:hover {
  border-color: var(--brand-green);
  transform: translateX(4px);
}
.news-list-item .news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.news-list-item .news-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}
.news-list-item:hover .news-title {
  color: var(--brand-green);
}
.news-list-item .news-arrow {
  font-size: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
}
/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--brand-green);
}
.breadcrumb .separator {
  color: var(--text-muted);
}
.breadcrumb .current {
  color: var(--brand-green);
  font-weight: 600;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-dark);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-col ul li a:hover {
  color: var(--brand-green);
}
.footer-col ul li span {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-beian {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-dark);
  padding-top: 24px;
}
.footer-beian a {
  color: var(--text-secondary);
  font-size: 13px;
  text-decoration: none;
}
.footer-beian a:hover {
  color: var(--brand-green);
}
.footer-beian .footer-copyright {
  font-weight: 600;
  color: var(--text-primary);
}
/* ===== Mobile Menu ===== */
.mobile-menu-open {
  overflow: hidden;
}
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: rgba(14, 18, 16, 0.98);
  z-index: 999;
  padding: 32px 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu-overlay.open {
  display: flex;
}
.mobile-menu-overlay .nav-link {
  padding: 14px 16px;
  font-size: 16px;
  border-bottom: 1px solid var(--border-dark);
  border-radius: 0;
}
.mobile-menu-overlay .nav-link.active {
  background: rgba(45, 212, 92, 0.06);
}
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .match-grid,
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: var(--section-pad-mobile) 0;
  }
  .page-header {
    padding: 48px 0 32px;
  }
  .page-header h1 {
    font-size: 32px;
  }
  .match-grid,
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .deep-content {
    padding: 28px 20px;
  }
  .deep-content h2 {
    font-size: 20px;
  }
  .cta-box {
    padding: 32px 20px;
  }
  .cta-box h2 {
    font-size: 22px;
  }
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-right {
    gap: 8px;
  }
  .btn-nav {
    padding: 6px 14px;
    font-size: 12px;
  }
  .live-indicator span:last-child {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .news-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}
@media (max-width: 520px) {
  .page-header h1 {
    font-size: 28px;
  }
  .section-title {
    font-size: 22px;
  }
  .match-card {
    padding: 16px;
  }
  .match-team {
    font-size: 13px;
  }
  .match-score {
    font-size: 18px;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }
  .filter-tags {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    margin: 0 -16px 32px;
    padding: 0 16px 8px;
  }
  .filter-tag {
    flex-shrink: 0;
    white-space: nowrap;
  }
}

/* roulang page: category2 */
:root {
            --bg-primary: #0E1210;
            --bg-secondary: #161B17;
            --bg-card: #1A211C;
            --brand-green: #2DD45C;
            --brand-green-bright: #3BFF66;
            --text-primary: #F2F5EF;
            --text-secondary: #8C948A;
            --text-muted: #5C635C;
            --accent-amber: #E8A33D;
            --border-dark: #2A302C;
            --border-light: #3A423C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
            --nav-height: 64px;
            --section-pad-desktop: 112px;
            --section-pad-mobile: 64px;
            --container-max: 1200px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-green);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        h1,
        h2,
        h3,
        h4 {
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
        }

        h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }

        h2 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        h3 {
            font-size: 21px;
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0;
            line-height: 1.5;
        }

        p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.9;
        }

        .section {
            padding: var(--section-pad-desktop) 0;
        }

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

        .section-header {
            margin-bottom: 48px;
            max-width: 720px;
        }

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

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-green);
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 36px;
            margin-bottom: 16px;
        }

        .section-header p {
            font-size: 17px;
        }

        .section-divider {
            border-top: 1px solid var(--border-dark);
            margin: 0;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(14, 18, 16, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            background: rgba(14, 18, 16, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

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

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: #0A0D0B;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--brand-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(45, 212, 92, 0.08);
        }

        .nav-link.active {
            color: var(--brand-green);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--brand-green);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-green-bright);
            animation: pulse 1.6s ease-in-out infinite;
            flex-shrink: 0;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(59, 255, 102, 0.55);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(59, 255, 102, 0);
            }
        }

        .btn-nav {
            padding: 8px 18px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
        }

        .btn-nav:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 212, 92, 0.35);
        }

        .notify-bell {
            position: relative;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border-dark);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .notify-bell:hover {
            border-color: var(--border-light);
            background: rgba(255, 255, 255, 0.04);
        }

        .notify-bell::after {
            content: '';
            position: absolute;
            top: 6px;
            right: 7px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-amber);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 4px;
            width: 36px;
            height: 36px;
            padding: 8px;
            background: transparent;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            align-items: center;
        }

        .nav-toggle span {
            display: block;
            width: 16px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(14, 18, 16, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 24px 16px;
            overflow-y: auto;
            border-top: 1px solid var(--border-dark);
        }

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

        .mobile-drawer .nav-link {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            border-bottom: 1px solid var(--border-dark);
            border-radius: 0;
        }

        .mobile-drawer .nav-link.active::after {
            display: none;
        }

        .mobile-drawer .nav-link.active {
            color: var(--brand-green);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 64px 0 72px;
            background-color: var(--bg-primary);
            border-bottom: 1px solid var(--border-dark);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(45, 212, 92, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(45, 212, 92, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            line-height: 1.15;
        }

        .hero-content h1 span {
            color: var(--brand-green);
        }

        .hero-content .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 520px;
            line-height: 1.85;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-btn);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(45, 212, 92, 0.35);
            color: #0A0D0B;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            min-height: 320px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-dark);
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .hero-visual:hover img {
            transform: scale(1.03);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(14, 18, 16, 0.65) 0%, rgba(14, 18, 16, 0.1) 40%, transparent 100%);
            pointer-events: none;
        }

        .hero-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            z-index: 2;
            background: rgba(14, 18, 16, 0.85);
            backdrop-filter: blur(8px);
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            font-size: 12px;
            color: var(--brand-green);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Data Cards Grid ===== */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

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

        .data-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(45, 212, 92, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .data-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .data-card p {
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
            color: var(--text-secondary);
        }

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

        .data-card .card-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--brand-green);
        }

        /* ===== Deep Article ===== */
        .deep-article {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dark);
            padding: 48px 56px;
            max-width: 900px;
            margin: 0 auto;
        }

        .deep-article h2 {
            font-size: 28px;
            margin-bottom: 24px;
            line-height: 1.35;
        }

        .deep-article p {
            font-size: 16px;
            line-height: 1.95;
            margin-bottom: 20px;
            color: var(--text-secondary);
        }

        .deep-article p:last-child {
            margin-bottom: 0;
        }

        /* ===== Dashboard Mockup ===== */
        .dashboard-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .dashboard-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-dark);
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .dashboard-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .dashboard-live {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--brand-green);
            font-weight: 600;
        }

        .dashboard-live .live-dot {
            width: 7px;
            height: 7px;
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .dashboard-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-dark);
            text-align: left;
        }

        .dashboard-item .item-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .dashboard-item .item-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1.2;
        }

        .dashboard-item .item-sub {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            text-align: left;
            padding: 0;
            position: relative;
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(45, 212, 92, 0.12);
            color: var(--brand-green);
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            border: 1px solid rgba(45, 212, 92, 0.3);
        }

        .step-item h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

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

        /* ===== Source Card ===== */
        .source-panel {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .source-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }

        .source-item:hover {
            border-color: var(--border-light);
            transform: translateY(-2px);
        }

        .source-item h3 {
            font-size: 17px;
            margin-bottom: 10px;
        }

        .source-item p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .source-item .update-frequency {
            display: inline-block;
            margin-top: 14px;
            padding: 4px 12px;
            background: rgba(45, 212, 92, 0.1);
            border-radius: 20px;
            font-size: 12px;
            color: var(--brand-green);
            font-weight: 600;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 30% 50%, rgba(45, 212, 92, 0.06) 0%, transparent 55%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 32px;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-section .btn-primary {
            font-size: 16px;
            padding: 16px 36px;
        }

        /* ===== News List ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .news-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
        }

        .news-date {
            flex-shrink: 0;
            width: 56px;
            text-align: center;
            padding-top: 4px;
        }

        .news-date .day {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1.1;
        }

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

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-size: 16px;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .news-content h3 a:hover {
            color: var(--brand-green);
        }

        .news-content p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: 64px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 16px;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li {
            font-size: 14px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-dark);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-beian a {
            color: var(--text-muted);
        }

        .footer-beian a:hover {
            color: var(--brand-green);
        }

        .footer-copyright {
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 36px;
            }
            h2 {
                font-size: 28px;
            }
            .section {
                padding: 72px 0;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
            .hero-visual {
                aspect-ratio: 16 / 9;
                min-height: 280px;
            }
            .hero-stats {
                gap: 24px;
            }
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .source-panel {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .live-indicator span:last-child {
                display: none;
            }
            .btn-nav {
                padding: 7px 14px;
                font-size: 12px;
            }
            h1 {
                font-size: 30px;
            }
            h2 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section {
                padding: 56px 0;
            }
            .hero {
                padding: 40px 0 48px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-content .hero-desc {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary,
            .btn-secondary {
                justify-content: center;
                width: 100%;
                text-align: center;
            }
            .hero-visual {
                min-height: 220px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .stat-number {
                font-size: 22px;
            }
            .data-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .dashboard-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .dashboard-item .item-value {
                font-size: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .source-panel {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .deep-article {
                padding: 32px 24px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .news-date {
                display: flex;
                gap: 8px;
                align-items: baseline;
                text-align: left;
                width: auto;
            }
            .news-date .day {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 23px;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-stats {
                gap: 14px;
            }
            .hero-stat .stat-number {
                font-size: 18px;
            }
            .hero-stat .stat-label {
                font-size: 11px;
            }
            .dashboard-grid {
                grid-template-columns: 1fr;
            }
            .dashboard-panel {
                padding: 20px;
            }
            .dashboard-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 20px;
                font-size: 14px;
            }
            .notify-bell {
                display: none;
            }
            .live-indicator {
                display: none;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .btn-nav {
                padding: 6px 12px;
                font-size: 11px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0E1210;
            --bg-secondary: #161B17;
            --bg-card: #1A211C;
            --brand-green: #2DD45C;
            --brand-green-bright: #3BFF66;
            --text-primary: #F2F5EF;
            --text-secondary: #8C948A;
            --text-muted: #5C635C;
            --accent-amber: #E8A33D;
            --border-dark: #2A302C;
            --border-light: #3A423C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
            --nav-height: 64px;
            --section-pad-desktop: 112px;
            --section-pad-mobile: 64px;
            --container-max: 1200px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--brand-green);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        /* ===== Bootstrap override ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(14, 18, 16, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            background: rgba(14, 18, 16, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .navbar {
            padding: 0;
        }

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

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: #0A0D0B;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--brand-green);
        }

        .nav-links-custom {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link-custom {
            position: relative;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link-custom:hover {
            color: var(--text-primary);
            background: rgba(45, 212, 92, 0.08);
        }

        .nav-link-custom.active {
            color: var(--brand-green);
            font-weight: 600;
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--brand-green);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-nav {
            padding: 8px 18px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
        }

        .btn-nav:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 212, 92, 0.35);
            color: #0A0D0B;
        }

        .live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-green-bright);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.7); }
        }

        .notify-bell {
            position: relative;
            font-size: 18px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .notify-bell:hover {
            color: var(--text-primary);
        }

        .notify-bell::after {
            content: '';
            position: absolute;
            top: 2px;
            right: 2px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-amber);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            background: transparent;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        @media (max-width: 992px) {
            .nav-links-custom {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-secondary);
                padding: 16px;
                gap: 8px;
                border-bottom: 1px solid var(--border-dark);
                box-shadow: var(--shadow-card);
                z-index: 999;
            }
            .nav-links-custom.show {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-right .live-indicator {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .btn-nav {
                padding: 6px 12px;
                font-size: 12px;
            }
            .nav-right {
                gap: 8px;
            }
        }

        /* ===== Hero - 分类页简介区 ===== */
        .category-hero {
            position: relative;
            padding: 64px 0 56px;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-dark);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--border-dark);
        }

        .category-hero .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .category-hero .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .category-hero .breadcrumb-custom a:hover {
            color: var(--brand-green);
        }

        .category-hero .breadcrumb-custom .sep {
            color: var(--text-muted);
        }

        .category-hero .breadcrumb-custom .current {
            color: var(--brand-green);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .category-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.9;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 72px 0;
            position: relative;
        }

        .section-block.alt-bg {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-green);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 22px;
            }
        }

        /* ===== 技术特性列表 ===== */
        .tech-feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            height: 100%;
            transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .tech-feature-card:hover {
            border-color: var(--brand-green);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .tech-feature-card .feature-icon {
            font-size: 28px;
            line-height: 1;
            color: var(--brand-green);
        }

        .tech-feature-card .feature-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .tech-feature-card .feature-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== 深度正文 ===== */
        .tech-article {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            line-height: 2.0;
            color: var(--text-primary);
            font-size: 16px;
        }

        .tech-article p {
            margin-bottom: 20px;
            color: var(--text-secondary);
        }

        .tech-article p:last-child {
            margin-bottom: 0;
        }

        .tech-article p strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .tech-article .highlight {
            color: var(--brand-green);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .tech-article {
                padding: 24px 18px;
                font-size: 15px;
            }
        }

        /* ===== 技术架构示意卡 / 流程 ===== */
        .arch-flow {
            display: flex;
            align-items: stretch;
            gap: 16px;
            flex-wrap: wrap;
        }

        .arch-step {
            flex: 1 1 180px;
            min-width: 160px;
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
            position: relative;
        }

        .arch-step:hover {
            border-color: var(--brand-green);
            transform: translateY(-3px);
        }

        .arch-step .step-num {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-amber);
            display: block;
            margin-bottom: 8px;
        }

        .arch-step .step-icon {
            font-size: 26px;
            display: block;
            margin-bottom: 8px;
            color: var(--brand-green);
        }

        .arch-step .step-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .arch-step .step-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .arch-arrow {
            align-self: center;
            font-size: 20px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .arch-flow {
                flex-direction: column;
            }
            .arch-arrow {
                align-self: flex-start;
                transform: rotate(90deg);
                margin-left: 50%;
            }
        }

        /* ===== 设备兼容说明 ===== */
        .device-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 16px;
        }

        .device-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }

        .device-item:hover {
            border-color: var(--brand-green);
            transform: translateY(-3px);
        }

        .device-item .device-icon {
            font-size: 28px;
            flex-shrink: 0;
            color: var(--brand-green);
        }

        .device-item .device-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .device-item .device-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 状态监控 ===== */
        .monitor-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
        }

        .monitor-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-dark);
            gap: 16px;
        }

        .monitor-row:last-child {
            border-bottom: none;
        }

        .monitor-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .monitor-value {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-amber);
            font-weight: 700;
            text-align: right;
        }

        .monitor-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--brand-green);
            font-weight: 500;
        }

        .monitor-status .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--brand-green-bright);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @media (max-width: 576px) {
            .monitor-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .monitor-value {
                text-align: left;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-secondary);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
        }

        .cta-block .cta-title {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .cta-block .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

        .btn-primary-cta {
            display: inline-block;
            padding: 12px 28px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }

        .btn-primary-cta:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 212, 92, 0.35);
            color: #0A0D0B;
        }

        .btn-outline-cta {
            display: inline-block;
            padding: 11px 26px;
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline-cta:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-block {
                padding: 28px 20px;
            }
            .cta-block .cta-title {
                font-size: 20px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-dark);
            padding: 48px 0 32px;
            margin-top: 40px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-col ul li span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-beian a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-beian a:hover {
            color: var(--brand-green);
        }

        .footer-beian .footer-copyright {
            font-weight: 500;
            color: var(--text-secondary);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ===== Animations ===== */
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.7); }
        }

        /* ===== 相关资讯 ===== */
        .rel-news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }

        .rel-news-card:hover {
            border-color: var(--brand-green);
            transform: translateY(-3px);
        }

        .rel-news-card .news-icon {
            font-size: 22px;
            color: var(--brand-green);
            flex-shrink: 0;
        }

        .rel-news-card .news-info {
            flex: 1;
        }

        .rel-news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            margin-bottom: 4px;
        }

        .rel-news-card .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .rel-news-card .news-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0E1210;
            --bg-secondary: #161B17;
            --bg-card: #1A211C;
            --brand-green: #2DD45C;
            --brand-green-bright: #3BFF66;
            --text-primary: #F2F5EF;
            --text-secondary: #8C948A;
            --text-muted: #5C635C;
            --accent-amber: #E8A33D;
            --border-dark: #2A302C;
            --border-light: #3A423C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
            --nav-height: 64px;
            --section-pad-desktop: 112px;
            --section-pad-mobile: 64px;
            --container-max: 1200px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--brand-green);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(14, 18, 16, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }
        .site-header.scrolled {
            background: rgba(14, 18, 16, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: #0A0D0B;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--brand-green);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            position: relative;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(45, 212, 92, 0.08);
        }
        .nav-link.active {
            color: var(--brand-green);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--brand-green);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--brand-green);
            white-space: nowrap;
        }
        .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-green-bright);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.3); }
        }
        .notify-bell {
            font-size: 16px;
            padding: 6px;
            border-radius: 50%;
            position: relative;
            transition: background var(--transition-fast);
        }
        .notify-bell:hover {
            background: rgba(45, 212, 92, 0.1);
        }
        .notify-bell::after {
            content: '';
            position: absolute;
            top: 6px;
            right: 6px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-amber);
        }
        .btn-nav {
            padding: 8px 18px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            display: inline-block;
        }
        .btn-nav:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            color: #0A0D0B;
            box-shadow: 0 8px 20px rgba(45, 212, 92, 0.35);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(45, 212, 92, 0.1);
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        /* ===== Page Header ===== */
        .page-header {
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border-dark);
            background: var(--bg-primary);
            position: relative;
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 60% 30%, rgba(45, 212, 92, 0.06) 0%, transparent 65%);
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--brand-green);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--brand-green);
        }
        .page-header h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin: 0 0 16px;
            color: var(--text-primary);
        }
        .page-header .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.9;
            margin: 0;
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--section-pad-desktop) 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-heading {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
            margin: 0 0 40px;
        }

        /* ===== Device Grid ===== */
        .device-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .device-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
            position: relative;
            overflow: hidden;
        }
        .device-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-green);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .device-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-light);
        }
        .device-card:hover::before {
            opacity: 1;
        }
        .device-icon {
            font-size: 36px;
            margin-bottom: 16px;
        }
        .device-card h3 {
            font-size: 19px;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0 0 10px;
            color: var(--text-primary);
        }
        .device-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }
        .device-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-green);
            background: rgba(45, 212, 92, 0.1);
            border-radius: 20px;
            margin-bottom: 14px;
        }

        /* ===== Deep Content ===== */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .deep-content .content-text h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.35;
            margin: 0 0 20px;
            color: var(--text-primary);
        }
        .deep-content .content-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2.0;
            margin: 0 0 16px;
        }
        .deep-content .content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }
        .deep-content .content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== Tool List ===== */
        .tool-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tool-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .tool-item:hover {
            border-color: var(--brand-green);
            transform: translateY(-3px);
        }
        .tool-emoji {
            font-size: 24px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .tool-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
        }
        .tool-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Network Requirements ===== */
        .network-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
        }
        .network-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-dark);
        }
        .network-row:last-child {
            border-bottom: none;
        }
        .network-label {
            font-size: 15px;
            color: var(--text-secondary);
        }
        .network-value {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .network-value.amber {
            color: var(--accent-amber);
        }
        .network-value.green {
            color: var(--brand-green);
        }

        /* ===== Tips Section ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .tip-card:hover {
            border-color: var(--border-light);
            transform: translateY(-3px);
        }
        .tip-number {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-green);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            display: block;
        }
        .tip-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-primary);
        }
        .tip-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }
        .cta-box {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .cta-box h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 12px;
            color: var(--text-primary);
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }
        .btn-primary {
            padding: 14px 32px;
            background: var(--brand-green);
            color: #0A0D0B;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            display: inline-block;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            color: #0A0D0B;
            box-shadow: 0 8px 24px rgba(45, 212, 92, 0.38);
        }
        .btn-secondary {
            padding: 14px 28px;
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
            display: inline-block;
        }
        .btn-secondary:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            transform: translateY(-2px);
        }

        /* ===== News Shortlist ===== */
        .news-shortlist {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-mini {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .news-mini:hover {
            border-color: var(--border-light);
            transform: translateY(-3px);
        }
        .news-mini .date {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            margin-bottom: 8px;
            display: block;
        }
        .news-mini h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .news-mini p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0A0D0B;
            border-top: 1px solid var(--border-dark);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 16px 0 0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--brand-green);
        }
        .footer-beian {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-beian a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-beian a:hover {
            color: var(--brand-green);
        }
        .footer-copyright {
            font-weight: 500;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tool-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-shortlist {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-header h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad-desktop: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(14, 18, 16, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-dark);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .live-indicator span:not(.live-dot) {
                display: none;
            }
            .page-header h1 {
                font-size: 30px;
            }
            .page-header .subtitle {
                font-size: 15px;
            }
            .section-heading {
                font-size: 26px;
            }
            .device-grid {
                grid-template-columns: 1fr;
            }
            .deep-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content .content-image {
                order: -1;
            }
            .tool-list {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .news-shortlist {
                grid-template-columns: 1fr;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
                gap: 20px;
            }
            .cta-box h2 {
                font-size: 23px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 26px;
            }
            .section-heading {
                font-size: 22px;
            }
            .network-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .network-value {
                font-size: 16px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category5 */
:root {
  --bg-primary: #0E1210;
  --bg-secondary: #161B17;
  --bg-card: #1A211C;
  --brand-green: #2DD45C;
  --brand-green-bright: #3BFF66;
  --text-primary: #F2F5EF;
  --text-secondary: #8C948A;
  --text-muted: #5C635C;
  --accent-amber: #E8A33D;
  --border-dark: #2A302C;
  --border-light: #3A423C;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 4px 12px rgba(45, 212, 92, 0.25);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
  --nav-height: 64px;
  --section-pad-desktop: 112px;
  --section-pad-mobile: 64px;
  --container-max: 1200px;
  --transition-fast: 0.18s ease;
  --transition-smooth: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--brand-green);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--brand-green);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(14, 18, 16, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-dark);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.scrolled {
  background: rgba(14, 18, 16, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-primary);
}

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

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #0A0D0B;
  flex-shrink: 0;
}

.logo-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.logo-text span {
  color: var(--brand-green);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(45, 212, 92, 0.08);
}

.nav-link.active {
  color: var(--brand-green);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--brand-green);
  border-radius: 2px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-green-bright);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(59, 255, 102, 0.5);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 6px rgba(59, 255, 102, 0);
  }
}

.notify-bell {
  font-size: 18px;
  padding: 4px;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  position: relative;
}

.notify-bell::after {
  content: '';
  position: absolute;
  top: 4px;
  right: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-amber);
}

.notify-bell:hover {
  transform: scale(1.1);
}

.btn-nav {
  padding: 8px 18px;
  background: var(--brand-green);
  color: #0A0D0B;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  box-shadow: var(--shadow-btn);
}

.btn-nav:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  color: #0A0D0B;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ===== Page Intro ===== */
.page-intro {
  padding: 72px 0 40px;
  border-bottom: 1px solid var(--border-dark);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.page-intro::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 212, 92, 0.06), transparent 70%);
  pointer-events: none;
}

.page-intro .container {
  position: relative;
  z-index: 1;
}

.page-intro h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.page-intro p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 800px;
}

/* ===== Section base ===== */
.section {
  padding: var(--section-pad-desktop) 0;
  border-bottom: 1px solid var(--border-dark);
}

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

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

.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.85;
  max-width: 720px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(45, 212, 92, 0.1);
  color: var(--brand-green);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

/* ===== News List ===== */
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-light);
}

.news-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
  transition: transform var(--transition-smooth);
}

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

.news-card-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-card-date {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.news-card-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.45;
}

.news-card-summary {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 16px;
}

.btn-outline {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--brand-green);
  color: var(--brand-green);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  text-align: center;
  align-self: flex-start;
}

.btn-outline:hover {
  background: var(--brand-green);
  color: #0A0D0B;
  transform: translateY(-1px);
}

/* ===== More button area ===== */
.more-entry {
  text-align: center;
  padding: 24px 0 8px;
}

.btn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-more:hover {
  border-color: var(--brand-green);
  color: var(--brand-green);
  transform: translateY(-2px);
}

/* ===== Deep reading ===== */
.deep-reading {
  max-width: 850px;
}

.deep-reading h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.deep-reading p {
  font-size: 17px;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

/* ===== Topic tags ===== */
.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.topic-tag {
  padding: 8px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border-radius: 20px;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.topic-tag:hover {
  border-color: var(--brand-green);
  color: var(--brand-green);
  background: rgba(45, 212, 92, 0.06);
}

/* ===== Subscribe CTA ===== */
.subscribe-cta {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.subscribe-cta-text h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.subscribe-cta-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.subscribe-form input {
  min-width: 240px;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color var(--transition-fast);
}

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

.subscribe-form input:focus {
  border-color: var(--brand-green);
}

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background: var(--brand-green);
  color: #0A0D0B;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), filter var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-btn);
  white-space: nowrap;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  color: #0A0D0B;
}

/* ===== Editor picks ===== */
.editor-picks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pick-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.pick-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-light);
}

.pick-card-img {
  width: 100%;
  height: 165px;
  object-fit: cover;
  border-radius: 0;
  transition: transform var(--transition-smooth);
}

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

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

.pick-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.pick-card-meta {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-dark);
  padding: 64px 0 32px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

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

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

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-beian {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-dark);
  font-size: 13px;
  color: var(--text-muted);
}

.footer-beian a {
  color: var(--text-muted);
}

.footer-beian a:hover {
  color: var(--brand-green);
}

.footer-copyright {
  font-weight: 500;
}

/* ===== Section: breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

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

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

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

.breadcrumb .current {
  color: var(--brand-green);
  font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .page-intro h1 {
    font-size: 36px;
  }

  .section {
    padding: 72px 0;
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(14, 18, 16, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-dark);
    transform: translateY(-110%);
    transition: transform var(--transition-smooth);
    z-index: 999;
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 16px;
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-link.active {
    background: rgba(45, 212, 92, 0.08);
    border-radius: var(--radius-sm);
  }

  .container {
    padding: 0 16px;
  }

  .page-intro {
    padding: 48px 0 32px;
  }

  .page-intro h1 {
    font-size: 30px;
  }

  .page-intro p {
    font-size: 15px;
  }

  .section {
    padding: 56px 0;
  }

  .section-header h2 {
    font-size: 24px;
  }

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

  .editor-picks {
    grid-template-columns: 1fr;
  }

  .subscribe-cta {
    padding: 32px 24px;
    flex-direction: column;
    align-items: flex-start;
  }

  .subscribe-form {
    width: 100%;
  }

  .subscribe-form input {
    flex: 1;
    min-width: 0;
  }

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

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

  .section-header p {
    font-size: 15px;
  }
}

@media (max-width: 520px) {
  .page-intro h1 {
    font-size: 26px;
  }

  .news-card-img {
    height: 170px;
  }

  .deep-reading p {
    font-size: 15px;
  }

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

  .topic-tag {
    font-size: 13px;
    padding: 6px 14px;
  }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}