/* roulang page: index */
:root {
            --neon-primary: #00e676;
            --neon-secondary: #00c853;
            --neon-glow: rgba(0, 230, 118, 0.55);
            --neon-soft: rgba(0, 230, 118, 0.18);
            --dark-bg: #0a0a14;
            --dark-surface: #111119;
            --dark-card: #14141f;
            --dark-border: #1e1e2e;
            --dark-border-hover: #2a2a3d;
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 4px rgba(0, 0, 0, 0.3);
            --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
            --shadow-neon: 0 0 18px rgba(0, 230, 118, 0.35), 0 0 40px rgba(0, 230, 118, 0.15);
            --shadow-neon-strong: 0 0 30px rgba(0, 230, 118, 0.55), 0 0 60px rgba(0, 230, 118, 0.25);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            background-color: var(--dark-bg);
            color: var(--text-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ::selection {
            background-color: rgba(0, 230, 118, 0.3);
            color: #fff;
        }

        ::-webkit-scrollbar {
            width: 7px;
        }
        ::-webkit-scrollbar-track {
            background: var(--dark-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: #2a2a3d;
            border-radius: 20px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #3a3a52;
        }

        /* ========== 容器 ========== */
        .container-site {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 导航 Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 20, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(30, 30, 46, 0.7);
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 20, 0.95);
            border-bottom-color: rgba(0, 230, 118, 0.2);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #00e676, #00c853);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #0a0a14;
            font-weight: 900;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.45);
            transition: box-shadow var(--transition-smooth);
        }
        .logo-wrap:hover .logo-icon {
            box-shadow: 0 0 28px rgba(0, 230, 118, 0.7);
        }
        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .logo-wrap:hover .logo-text {
            color: var(--neon-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 25px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.active {
            color: #fff;
            background: rgba(0, 230, 118, 0.1);
            box-shadow: inset 0 0 0 1px rgba(0, 230, 118, 0.35);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.5);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 10px;
            background: var(--neon-primary);
            box-shadow: 0 0 12px var(--neon-glow), 0 0 24px var(--neon-glow);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            background: transparent;
            border: 1.5px solid var(--neon-primary);
            color: var(--neon-primary);
            transition: all var(--transition-smooth);
            letter-spacing: 0.4px;
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background: var(--neon-primary);
            color: #0a0a14;
            box-shadow: var(--shadow-neon);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            padding: 6px;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1;
        }
        .mobile-toggle:hover {
            color: var(--neon-primary);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding-top: 68px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(10, 10, 20, 0.55) 0%,
                    rgba(10, 10, 20, 0.7) 40%,
                    rgba(10, 10, 20, 0.92) 85%,
                    #0a0a14 100%);
            z-index: 1;
        }
        .hero-glow-orb {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.12) 0%, transparent 70%);
            top: 20%;
            right: -10%;
            z-index: 1;
            pointer-events: none;
            animation: float 8s ease-in-out infinite;
        }
        .hero-glow-orb.second {
            width: 350px;
            height: 350px;
            top: 55%;
            left: -8%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.1) 0%, transparent 70%);
            animation-delay: -4s;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 25px;
            background: rgba(0, 230, 118, 0.08);
            border: 1px solid rgba(0, 230, 118, 0.25);
            font-size: 0.88rem;
            color: var(--neon-primary);
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            animation: slideUp 0.7s ease-out forwards;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--neon-primary);
            box-shadow: 0 0 10px var(--neon-glow);
            animation: glowPulse 2s ease-in-out infinite;
        }
        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            animation: slideUp 0.7s ease-out 0.1s forwards;
            opacity: 0;
        }
        .hero-title .highlight {
            color: var(--neon-primary);
            text-shadow: 0 0 30px rgba(0, 230, 118, 0.5), 0 0 60px rgba(0, 230, 118, 0.2);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 34px;
            animation: slideUp 0.7s ease-out 0.2s forwards;
            opacity: 0;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            animation: slideUp 0.7s ease-out 0.3s forwards;
            opacity: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: var(--neon-primary);
            color: #0a0a14;
            transition: all var(--transition-smooth);
            letter-spacing: 0.4px;
            box-shadow: 0 4px 20px rgba(0, 230, 118, 0.3);
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-neon-strong);
            transform: translateY(-2px);
            background: #00ff84;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            transition: all var(--transition-smooth);
            letter-spacing: 0.4px;
        }
        .btn-outline:hover {
            border-color: var(--neon-primary);
            color: var(--neon-primary);
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.2);
            transform: translateY(-2px);
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 80px 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--neon-primary);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.7rem, 3vw, 2.3rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header .section-subtitle {
            margin: 0 auto;
        }

        /* ========== 亮点卡片 ========== */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .highlight-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--neon-primary), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .highlight-card:hover {
            border-color: var(--dark-border-hover);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
        }
        .highlight-card:hover::before {
            opacity: 1;
        }
        .highlight-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: rgba(0, 230, 118, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--neon-primary);
            margin-bottom: 20px;
            transition: all var(--transition-smooth);
        }
        .highlight-card:hover .highlight-icon {
            background: rgba(0, 230, 118, 0.18);
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.2);
        }
        .highlight-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .highlight-card p {
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 分类入口卡片 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr;
            max-width: 700px;
            margin: 0 auto;
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 28px;
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            transition: all var(--transition-smooth);
            cursor: pointer;
            overflow: hidden;
        }
        .category-card:hover {
            border-color: rgba(0, 230, 118, 0.4);
            box-shadow: var(--shadow-elevated), 0 0 30px rgba(0, 230, 118, 0.1);
            transform: translateY(-3px);
        }
        .category-card-img {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }
        .category-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .category-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .category-card-arrow {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(0, 230, 118, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-primary);
            font-size: 1rem;
            transition: all var(--transition-smooth);
        }
        .category-card:hover .category-card-arrow {
            background: var(--neon-primary);
            color: #0a0a14;
            box-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }

        /* ========== 资讯列表 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition-smooth);
            align-items: center;
        }
        .news-item:hover {
            border-color: rgba(0, 230, 118, 0.3);
            box-shadow: var(--shadow-card);
            transform: translateX(3px);
        }
        .news-thumb {
            width: 100px;
            height: 72px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--dark-border);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body .news-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--neon-primary);
            background: rgba(0, 230, 118, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .news-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body .news-meta {
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .news-arrow {
            flex-shrink: 0;
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .news-item:hover .news-arrow {
            color: var(--neon-primary);
            transform: translateX(3px);
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ========== 数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            text-align: center;
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: rgba(0, 230, 118, 0.3);
            box-shadow: 0 0 30px rgba(0, 230, 118, 0.08);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--neon-primary);
            text-shadow: 0 0 20px rgba(0, 230, 118, 0.35);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== 步骤流程 ========== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 700px;
            margin: 0 auto;
            counter-reset: step-counter;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .step-item:hover {
            border-color: rgba(0, 230, 118, 0.3);
            box-shadow: var(--shadow-card);
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 230, 118, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--neon-primary);
            border: 2px solid rgba(0, 230, 118, 0.3);
        }
        .step-item:hover .step-number {
            background: var(--neon-primary);
            color: #0a0a14;
            border-color: var(--neon-primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.5);
        }
        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: rgba(0, 230, 118, 0.25);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--neon-primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-dim);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--neon-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.02rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
        }

        /* ========== Footer ========== */
        .site-footer {
            border-top: 1px solid var(--dark-border);
            padding: 40px 0;
            background: var(--dark-bg);
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
        }
        .footer-copy {
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-links {
            display: flex;
            gap: 20px;
            list-style: none;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--neon-primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section-block {
                padding: 60px 0;
            }
            .category-card {
                flex-direction: column;
                text-align: center;
                padding: 24px;
            }
            .category-card-img {
                width: 100%;
                height: 160px;
            }
            .category-card-arrow {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(10, 10, 20, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--dark-border);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                border-radius: var(--radius-sm);
                padding: 13px 18px;
                font-size: 1rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                border-left: 3px solid var(--neon-primary);
                box-shadow: none;
                background: rgba(0, 230, 118, 0.06);
            }
            .mobile-toggle {
                display: block;
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-cta-btn-mobile {
                display: inline-flex !important;
                margin-top: 8px;
                justify-content: center;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-section {
                min-height: auto;
                padding: 100px 0 60px;
            }
            .hero-content {
                padding: 40px 0;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
            }
            .section-block {
                padding: 48px 0;
            }
            .cta-section {
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 14px;
            }
            .logo-text {
                font-size: 1rem;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-btns {
                flex-direction: column;
                width: 100%;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .stat-card {
                padding: 22px 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .category-card-img {
                height: 120px;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 20px;
            }
            .container-site {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg: #0a0e14;
            --color-surface: #131820;
            --color-surface-elevated: #1a212e;
            --color-border: #252d3a;
            --color-border-light: #303a4a;
            --color-text: #e2e6ec;
            --color-text-secondary: #8b95a5;
            --color-text-muted: #5c6778;
            --color-primary: #00e5a0;
            --color-primary-glow: rgba(0, 229, 160, 0.35);
            --color-primary-dim: rgba(0, 229, 160, 0.12);
            --color-accent: #ff6b6b;
            --color-accent-glow: rgba(255, 107, 107, 0.3);
            --color-card-hover: #1c2535;
            --color-tag-bg: rgba(0, 229, 160, 0.08);
            --color-tag-text: #00c98a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
            --shadow-glow: 0 0 20px rgba(0,229,160,0.15);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input, select {
            font-family: inherit;
            outline: none;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 900px;
        }

        /* ===== 暗色霓虹导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 8px rgba(0,0,0,0.5);
            transition: background var(--transition-smooth);
        }

        .site-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color-primary) 20%, var(--color-primary) 80%, transparent);
            opacity: 0.75;
            box-shadow: 0 0 12px var(--color-primary-glow), 0 0 28px rgba(0,229,160,0.2);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-wrap:hover {
            opacity: 0.85;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: rgba(0, 229, 160, 0.12);
            color: var(--color-primary);
            font-size: 1.25rem;
            box-shadow: 0 0 14px rgba(0, 229, 160, 0.2);
            transition: box-shadow var(--transition-fast);
        }

        .logo-wrap:hover .logo-icon {
            box-shadow: 0 0 22px rgba(0, 229, 160, 0.4);
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: #ffffff;
            white-space: nowrap;
        }

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-smooth);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255,255,255,0.04);
        }

        .nav-links a.active,
        .nav-links a[aria-current="page"] {
            color: var(--color-primary);
            background: rgba(0, 229, 160, 0.1);
            box-shadow: 0 0 16px rgba(0, 229, 160, 0.2), inset 0 0 8px rgba(0,229,160,0.05);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00c77a 100%);
            color: #0a0e14 !important;
            box-shadow: 0 2px 12px rgba(0, 229, 160, 0.35);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            box-shadow: 0 4px 22px rgba(0, 229, 160, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta-btn i {
            font-size: 0.85rem;
        }

        .mobile-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(255,255,255,0.08);
        }

        .nav-cta-btn-mobile {
            display: none !important;
        }

        /* ===== 分类页 Banner ===== */
        .category-banner {
            position: relative;
            background: linear-gradient(160deg, #0d1520 0%, #111a28 30%, #0f1924 100%);
            overflow: hidden;
            padding: 60px 0 50px;
            border-bottom: 1px solid var(--color-border);
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.18;
            pointer-events: none;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0,229,160,0.4) 30%, rgba(0,229,160,0.4) 70%, transparent);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--color-border-light);
            font-size: 0.7rem;
        }

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

        .category-banner-content h1 {
            font-size: 2.4rem;
            font-weight: 800;
            margin: 0 0 12px;
            letter-spacing: 0.02em;
            color: #fff;
            line-height: 1.3;
        }

        .category-banner-content h1 .highlight {
            color: var(--color-primary);
            text-shadow: 0 0 20px rgba(0,229,160,0.4);
        }

        .category-banner-content .subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            margin: 0;
            max-width: 640px;
            line-height: 1.7;
        }

        .category-stats {
            display: flex;
            gap: 32px;
            margin-top: 22px;
            flex-wrap: wrap;
        }

        .category-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }

        .category-stat i {
            color: var(--color-primary);
            font-size: 1rem;
        }

        .category-stat strong {
            color: #fff;
            font-size: 1.05rem;
        }

        /* ===== 主布局 ===== */
        .category-main {
            padding: 44px 0 60px;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }

        /* ===== 筛选栏 ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 14px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .filter-bar .filter-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            white-space: nowrap;
            font-weight: 500;
        }

        .filter-tabs {
            display: flex;
            gap: 5px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 7px 15px;
            border-radius: 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .filter-tab:hover {
            color: #fff;
            background: rgba(255,255,255,0.04);
        }

        .filter-tab.active {
            color: var(--color-primary);
            background: rgba(0,229,160,0.1);
            border-color: rgba(0,229,160,0.25);
        }

        .filter-sort {
            padding: 8px 14px;
            border-radius: 18px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            background: var(--color-surface-elevated);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .filter-sort:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.1);
        }

        /* ===== 文章网格 ===== */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            background: var(--color-card-hover);
            border-color: var(--color-border-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg), 0 0 28px rgba(0,229,160,0.06);
        }

        .article-card-image-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0d1520;
        }

        .article-card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .article-card:hover .article-card-image-wrap img {
            transform: scale(1.06);
        }

        .article-card-image-wrap .tag-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            z-index: 1;
        }

        .tag-badge-sm {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(0, 229, 160, 0.15);
            color: var(--color-primary);
            border: 1px solid rgba(0,229,160,0.2);
            backdrop-filter: blur(4px);
        }

        .article-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-body h3 {
            margin: 0 0 8px;
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.45;
            color: #fff;
        }

        .article-card:hover .article-card-body h3 {
            color: var(--color-primary);
        }

        .article-card-body .excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0 0 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .article-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-card-meta i {
            font-size: 0.75rem;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 88px;
        }

        .sidebar-widget {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
        }

        .sidebar-widget h4 {
            margin: 0 0 16px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget h4::before {
            content: '';
            display: block;
            width: 4px;
            height: 20px;
            border-radius: 2px;
            background: var(--color-primary);
            box-shadow: 0 0 8px var(--color-primary-glow);
        }

        .sidebar-article-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-article-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .sidebar-article-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .sidebar-article-item:hover .sidebar-article-title {
            color: var(--color-primary);
        }

        .sidebar-article-thumb {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #0d1520;
        }

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

        .sidebar-article-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.45;
            margin: 0 0 4px;
            transition: color var(--transition-fast);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .sidebar-article-date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud-item {
            padding: 5px 13px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            border: 1px solid rgba(0,229,160,0.15);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag-cloud-item:hover {
            background: rgba(0,229,160,0.16);
            border-color: rgba(0,229,160,0.35);
            color: var(--color-primary);
        }

        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .pagination a:hover {
            color: #fff;
            border-color: var(--color-border-light);
            background: var(--color-surface-elevated);
        }

        .pagination .current {
            color: var(--color-primary);
            border-color: rgba(0,229,160,0.4);
            background: rgba(0,229,160,0.1);
            box-shadow: 0 0 10px rgba(0,229,160,0.15);
            font-weight: 700;
        }

        .pagination .disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ===== CTA 板块 ===== */
        .cta-section {
            padding: 56px 0;
            text-align: center;
            background: linear-gradient(170deg, #0f1925 0%, #111d2c 50%, #0e1823 100%);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

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

        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
        }

        .cta-section p {
            color: var(--color-text-secondary);
            font-size: 1rem;
            margin: 0 0 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 26px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00c77a 100%);
            color: #0a0e14;
            box-shadow: 0 4px 20px rgba(0,229,160,0.4);
            transition: all var(--transition-smooth);
        }

        .btn-primary-lg:hover {
            box-shadow: 0 6px 30px rgba(0,229,160,0.55);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 28px 0;
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
        }

        .footer-brand {
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            letter-spacing: 0.03em;
        }

        .footer-links {
            list-style: none;
            display: flex;
            gap: 22px;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-copy {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .sidebar {
                position: static;
                top: auto;
            }

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

            .category-banner-content h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                padding: 0 16px;
            }

            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(10, 14, 20, 0.97);
                backdrop-filter: blur(14px);
                flex-direction: column;
                align-items: stretch;
                padding: 20px 16px;
                gap: 4px;
                transform: translateX(100%);
                transition: transform var(--transition-smooth);
                z-index: 999;
                overflow-y: auto;
            }

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

            .nav-links a {
                padding: 14px 16px;
                border-radius: var(--radius-md);
                font-size: 1rem;
                justify-content: center;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-cta-btn {
                display: none !important;
            }

            .nav-cta-btn-mobile {
                display: inline-flex !important;
                justify-content: center;
                margin-top: 8px;
                background: linear-gradient(135deg, var(--color-primary) 0%, #00c77a 100%);
                color: #0a0e14 !important;
                font-weight: 700;
                border-radius: 24px;
                padding: 13px 20px;
                box-shadow: 0 2px 16px rgba(0,229,160,0.35);
            }

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

            .category-banner {
                padding: 40px 0 32px;
            }

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

            .category-banner-content .subtitle {
                font-size: 0.92rem;
            }

            .category-stats {
                gap: 16px;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .filter-tabs {
                width: 100%;
            }

            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .footer-links {
                justify-content: center;
                gap: 16px;
            }

            .pagination a,
            .pagination span {
                min-width: 34px;
                height: 34px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

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

            .category-stats {
                gap: 12px;
                font-size: 0.8rem;
            }

            .category-stat strong {
                font-size: 0.9rem;
            }

            .article-card-body h3 {
                font-size: 0.95rem;
            }

            .article-card-body .excerpt {
                font-size: 0.82rem;
            }

            .sidebar-widget {
                padding: 16px 14px;
            }

            .cta-section h3 {
                font-size: 1.4rem;
            }

            .btn-primary-lg {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --bg-deep: #08080f;
            --bg-surface: #111118;
            --bg-card: #161624;
            --bg-card-hover: #1c1c2e;
            --bg-nav: rgba(10, 10, 18, 0.92);
            --neon-primary: #00e676;
            --neon-primary-glow: rgba(0, 230, 118, 0.45);
            --neon-primary-soft: rgba(0, 230, 118, 0.15);
            --neon-cyan: #00e5ff;
            --neon-cyan-glow: rgba(0, 229, 255, 0.4);
            --neon-amber: #ff9100;
            --neon-amber-glow: rgba(255, 145, 0, 0.4);
            --text-primary: #e8e8ec;
            --text-secondary: #b0b3c0;
            --text-muted: #6e7180;
            --text-on-dark: #e0e0e4;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-neon: rgba(0, 230, 118, 0.3);
            --border-neon-cyan: rgba(0, 229, 255, 0.25);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);
            --shadow-glow-sm: 0 0 12px var(--neon-primary-glow);
            --shadow-glow-md: 0 0 28px var(--neon-primary-glow);
            --shadow-cyan-glow: 0 0 18px var(--neon-cyan-glow);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1180px;
            --max-width-article: 820px;
            --nav-height: 68px;
            --spacing-xs: 8px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
        body{
            font-family:var(--font-sans);
            background:var(--bg-deep);
            color:var(--text-primary);
            line-height:1.65;
            min-height:100vh;
            overflow-x:hidden;
            -webkit-tap-highlight-color:transparent;
        }
        body::before{
            content:'';
            position:fixed;top:0;left:0;width:100%;height:100%;
            background:
                radial-gradient(ellipse 60% 50% at 15% 10%, rgba(0,230,118,0.04) 0%, transparent 70%),
                radial-gradient(ellipse 50% 45% at 80% 20%, rgba(0,229,255,0.03) 0%, transparent 70%),
                radial-gradient(ellipse 55% 40% at 50% 85%, rgba(255,145,0,0.02) 0%, transparent 70%);
            pointer-events:none;z-index:0;
        }
        a{color:var(--neon-primary);text-decoration:none;transition:color var(--transition-fast),text-shadow var(--transition-fast);}
        a:hover{color:var(--neon-cyan);text-shadow:0 0 8px var(--neon-cyan-glow);}
        a:focus-visible{outline:2px dashed var(--neon-primary);outline-offset:3px;border-radius:4px;}
        img{max-width:100%;height:auto;display:block;}
        button{cursor:pointer;font-family:var(--font-sans);border:none;background:none;}
        ul,ol{list-style:none;}

        .container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-md);position:relative;z-index:1;}
        .container--article{max-width:var(--max-width-article);}

        /* HEADER / NAV - 暗色霓虹导航 */
        .site-header{
            position:sticky;top:0;z-index:1000;
            background:var(--bg-nav);
            backdrop-filter:blur(22px) saturate(140%);
            -webkit-backdrop-filter:blur(22px) saturate(140%);
            border-bottom:1px solid var(--border-subtle);
            box-shadow:0 1px 0 var(--border-neon),0 4px 20px rgba(0,0,0,0.4);
            height:var(--nav-height);
            display:flex;align-items:center;
        }
        .header-inner{
            width:100%;max-width:var(--max-width);margin:0 auto;
            padding:0 var(--spacing-md);
            display:flex;align-items:center;justify-content:space-between;
            gap:var(--spacing-md);
        }
        .logo-wrap{
            display:flex;align-items:center;gap:10px;
            flex-shrink:0;text-decoration:none;
            transition:filter var(--transition-smooth);
        }
        .logo-wrap:hover{filter:drop-shadow(0 0 14px var(--neon-primary-glow));}
        .logo-icon{
            font-size:1.55rem;color:var(--neon-primary);
            filter:drop-shadow(0 0 8px var(--neon-primary-glow));
            transition:transform var(--transition-smooth);
        }
        .logo-wrap:hover .logo-icon{transform:rotate(-12deg) scale(1.08);}
        .logo-text{
            font-size:1.22rem;font-weight:700;color:var(--text-primary);
            letter-spacing:0.03em;white-space:nowrap;
            transition:color var(--transition-fast);
        }
        .logo-wrap:hover .logo-text{color:var(--neon-primary);}
        .nav-links{
            display:flex;align-items:center;gap:6px;
            background:rgba(255,255,255,0.03);
            border-radius:var(--radius-xl);
            padding:5px 6px;
            border:1px solid var(--border-subtle);
        }
        .nav-links li a{
            display:inline-flex;align-items:center;gap:5px;
            padding:9px 18px;border-radius:var(--radius-xl);
            font-size:0.94rem;font-weight:500;color:var(--text-secondary);
            transition:all var(--transition-smooth);
            position:relative;
            white-space:nowrap;
        }
        .nav-links li a:hover{
            color:var(--neon-primary);
            background:var(--neon-primary-soft);
            text-shadow:0 0 6px var(--neon-primary-glow);
        }
        .nav-links li a.active{
            color:var(--neon-primary);
            background:rgba(0,230,118,0.12);
            font-weight:600;
            box-shadow:inset 0 0 0 1px var(--border-neon),0 0 16px var(--neon-primary-glow);
        }
        .nav-cta-btn{
            display:inline-flex;align-items:center;gap:7px;
            padding:10px 22px;border-radius:var(--radius-xl);
            font-size:0.92rem;font-weight:600;color:#111;
            background:var(--neon-primary);
            box-shadow:0 0 18px var(--neon-primary-glow),0 2px 10px rgba(0,230,118,0.35);
            transition:all var(--transition-smooth);
            white-space:nowrap;flex-shrink:0;
        }
        .nav-cta-btn:hover{
            background:var(--neon-cyan);
            color:#0a0a0f;
            box-shadow:0 0 28px var(--neon-cyan-glow),0 4px 16px rgba(0,229,255,0.4);
            transform:translateY(-1px);
            text-shadow:none;
        }
        .nav-cta-btn-mobile{display:none !important;}
        .mobile-toggle{
            display:none;font-size:1.5rem;color:var(--text-primary);
            padding:8px;border-radius:var(--radius-sm);
            transition:all var(--transition-fast);
        }
        .mobile-toggle:hover{color:var(--neon-primary);text-shadow:0 0 10px var(--neon-primary-glow);}

        /* BREADCRUMB */
        .breadcrumb-wrap{padding:var(--spacing-md) 0 var(--spacing-xs);}
        .breadcrumb{
            display:flex;align-items:center;flex-wrap:wrap;gap:6px;
            font-size:0.88rem;color:var(--text-muted);
        }
        .breadcrumb a{color:var(--text-secondary);font-weight:500;}
        .breadcrumb a:hover{color:var(--neon-primary);text-shadow:0 0 6px var(--neon-primary-glow);}
        .breadcrumb .sep{color:var(--text-muted);margin:0 2px;font-size:0.7rem;}
        .breadcrumb .current{color:var(--neon-primary);font-weight:600;}

        /* ARTICLE HERO */
        .article-hero{padding:var(--spacing-md) 0 var(--spacing-lg);}
        .article-meta-row{
            display:flex;align-items:center;flex-wrap:wrap;gap:12px;
            margin-bottom:var(--spacing-sm);
        }
        .article-category-badge{
            display:inline-flex;align-items:center;gap:5px;
            padding:6px 14px;border-radius:var(--radius-xl);
            font-size:0.82rem;font-weight:600;
            color:var(--neon-primary);
            background:var(--neon-primary-soft);
            border:1px solid var(--border-neon);
            box-shadow:0 0 10px rgba(0,230,118,0.1);
        }
        .article-date{
            font-size:0.85rem;color:var(--text-muted);
            display:flex;align-items:center;gap:5px;
        }
        .article-date i{color:var(--neon-cyan);font-size:0.75rem;}
        .article-title{
            font-size:2.2rem;font-weight:800;line-height:1.3;
            color:var(--text-primary);
            margin-bottom:var(--spacing-sm);
            letter-spacing:-0.01em;
        }
        .article-title .highlight{color:var(--neon-primary);}
        .article-excerpt{
            font-size:1.08rem;color:var(--text-secondary);
            line-height:1.7;margin-bottom:var(--spacing-md);
            padding-left:var(--spacing-md);
            border-left:3px solid var(--border-neon);
            box-shadow:-4px 0 12px rgba(0,230,118,0.08);
        }
        .article-featured-image{
            border-radius:var(--radius-lg);
            overflow:hidden;
            box-shadow:var(--shadow-card),0 0 30px rgba(0,230,118,0.08);
            border:1px solid var(--border-subtle);
            margin-bottom:var(--spacing-lg);
        }
        .article-featured-image img{width:100%;height:auto;display:block;}

        /* ARTICLE CONTENT */
        .article-body{
            font-size:1.06rem;line-height:1.85;color:var(--text-on-dark);
        }
        .article-body h2{
            font-size:1.55rem;font-weight:700;margin:var(--spacing-lg) 0 var(--spacing-sm);
            color:var(--text-primary);
            padding-bottom:10px;
            border-bottom:2px solid var(--border-neon);
            box-shadow:0 2px 10px rgba(0,230,118,0.06);
            letter-spacing:0.01em;
        }
        .article-body h3{
            font-size:1.28rem;font-weight:700;margin:var(--spacing-md) 0 var(--spacing-sm);
            color:var(--neon-cyan);
        }
        .article-body p{margin-bottom:1.2em;}
        .article-body strong{color:var(--neon-primary);font-weight:700;}
        .article-body ul,.article-body ol{
            margin:1em 0 1.3em;padding-left:1.6em;
        }
        .article-body ul{list-style:disc;}
        .article-body ol{list-style:decimal;}
        .article-body li{margin-bottom:0.55em;color:var(--text-secondary);}
        .article-body li::marker{color:var(--neon-primary);}
        .article-body blockquote{
            margin:var(--spacing-md) 0;padding:var(--spacing-md) var(--spacing-md) var(--spacing-md) 22px;
            background:rgba(0,230,118,0.04);
            border-left:4px solid var(--neon-primary);
            border-radius:0 var(--radius-md) var(--radius-md) 0;
            color:var(--text-secondary);
            font-style:italic;
            box-shadow:0 0 20px rgba(0,230,118,0.05);
        }
        .article-body a{color:var(--neon-cyan);border-bottom:1px dotted var(--border-neon-cyan);}
        .article-body a:hover{color:var(--neon-primary);border-bottom-color:var(--neon-primary);}
        .article-body img{
            border-radius:var(--radius-md);margin:var(--spacing-md) 0;
            box-shadow:var(--shadow-card);
        }
        .article-body code{
            background:rgba(255,255,255,0.06);padding:3px 8px;
            border-radius:4px;font-family:var(--font-mono);font-size:0.9em;
            color:var(--neon-cyan);
        }
        .article-body pre{
            background:var(--bg-card);padding:var(--spacing-md);
            border-radius:var(--radius-md);overflow-x:auto;
            border:1px solid var(--border-subtle);
            font-family:var(--font-mono);font-size:0.9em;
            line-height:1.6;margin:var(--spacing-md) 0;
        }

        /* NOT FOUND */
        .not-found-block{
            text-align:center;padding:var(--spacing-2xl) var(--spacing-md);
        }
        .not-found-icon{
            font-size:5rem;color:var(--neon-amber);
            filter:drop-shadow(0 0 30px var(--neon-amber-glow));
            margin-bottom:var(--spacing-md);
        }
        .not-found-block h2{
            font-size:1.8rem;color:var(--text-primary);margin-bottom:var(--spacing-sm);
        }
        .not-found-block p{
            color:var(--text-secondary);margin-bottom:var(--spacing-md);font-size:1.05rem;
        }
        .btn-back{
            display:inline-flex;align-items:center;gap:8px;
            padding:12px 28px;border-radius:var(--radius-xl);
            font-size:0.95rem;font-weight:600;color:#111;
            background:var(--neon-primary);
            box-shadow:var(--shadow-glow-sm);
            transition:all var(--transition-smooth);
        }
        .btn-back:hover{
            background:var(--neon-cyan);
            box-shadow:var(--shadow-cyan-glow);
            transform:translateY(-2px);
            text-shadow:none;color:#0a0a0f;
        }

        /* RELATED POSTS */
        .related-section{padding:var(--spacing-xl) 0 var(--spacing-lg);}
        .section-label{
            display:inline-flex;align-items:center;gap:8px;
            font-size:0.82rem;font-weight:700;text-transform:uppercase;
            letter-spacing:0.08em;color:var(--neon-primary);
            margin-bottom:var(--spacing-sm);
            padding:6px 14px;border-radius:var(--radius-xl);
            background:var(--neon-primary-soft);
            border:1px solid var(--border-neon);
        }
        .section-title{
            font-size:1.65rem;font-weight:800;color:var(--text-primary);
            margin-bottom:var(--spacing-md);letter-spacing:-0.01em;
        }
        .related-grid{
            display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md);
        }
        .related-card{
            background:var(--bg-card);border-radius:var(--radius-lg);
            border:1px solid var(--border-subtle);
            overflow:hidden;
            transition:all var(--transition-smooth);
            display:flex;flex-direction:column;
        }
        .related-card:hover{
            border-color:var(--border-neon);
            box-shadow:var(--shadow-glow-md),var(--shadow-card);
            transform:translateY(-4px);
        }
        .related-card-img{
            aspect-ratio:16/10;overflow:hidden;
            border-bottom:1px solid var(--border-subtle);
        }
        .related-card-img img{
            width:100%;height:100%;object-fit:cover;
            transition:transform var(--transition-smooth);
        }
        .related-card:hover .related-card-img img{transform:scale(1.06);}
        .related-card-body{padding:var(--spacing-sm) var(--spacing-md) var(--spacing-md);flex:1;display:flex;flex-direction:column;}
        .related-card-cat{
            font-size:0.78rem;color:var(--neon-primary);font-weight:600;
            margin-bottom:6px;letter-spacing:0.03em;
        }
        .related-card-title{
            font-size:1rem;font-weight:700;color:var(--text-primary);
            line-height:1.4;margin-bottom:8px;flex:1;
            display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
        }
        .related-card:hover .related-card-title{color:var(--neon-cyan);}
        .related-card-date{
            font-size:0.8rem;color:var(--text-muted);
            display:flex;align-items:center;gap:5px;
        }

        /* ARTICLE TAG ROW */
        .article-tags-row{
            display:flex;align-items:center;flex-wrap:wrap;gap:10px;
            margin-top:var(--spacing-lg);padding-top:var(--spacing-md);
            border-top:1px solid var(--border-subtle);
        }
        .article-tags-label{
            font-size:0.82rem;color:var(--text-muted);font-weight:600;
            display:flex;align-items:center;gap:5px;
        }
        .article-tag{
            display:inline-block;padding:5px 13px;border-radius:var(--radius-xl);
            font-size:0.8rem;color:var(--text-secondary);
            background:rgba(255,255,255,0.04);
            border:1px solid var(--border-subtle);
            transition:all var(--transition-fast);
        }
        .article-tag:hover{
            color:var(--neon-primary);border-color:var(--border-neon);
            background:var(--neon-primary-soft);
            text-shadow:0 0 6px var(--neon-primary-glow);
        }

        /* CTA */
        .cta-section{
            padding:var(--spacing-xl) 0;
            text-align:center;
            background:var(--bg-card);
            border-radius:var(--radius-lg);
            border:1px solid var(--border-subtle);
            margin:var(--spacing-lg) 0;
            position:relative;overflow:hidden;
        }
        .cta-section::before{
            content:'';position:absolute;top:-60%;left:-30%;width:160%;height:160%;
            background:radial-gradient(ellipse at center, rgba(0,229,255,0.06) 0%, transparent 65%);
            pointer-events:none;
        }
        .cta-section h3{
            font-size:1.45rem;font-weight:800;color:var(--text-primary);
            margin-bottom:var(--spacing-sm);position:relative;z-index:1;
        }
        .cta-section p{
            color:var(--text-secondary);margin-bottom:var(--spacing-md);
            position:relative;z-index:1;font-size:1rem;
        }
        .btn-cta{
            display:inline-flex;align-items:center;gap:8px;
            padding:13px 30px;border-radius:var(--radius-xl);
            font-size:0.95rem;font-weight:700;color:#0a0a0f;
            background:var(--neon-cyan);
            box-shadow:var(--shadow-cyan-glow);
            transition:all var(--transition-smooth);
            position:relative;z-index:1;
        }
        .btn-cta:hover{
            background:var(--neon-primary);
            box-shadow:var(--shadow-glow-md);
            transform:translateY(-3px);
            text-shadow:none;color:#111;
        }

        /* FOOTER */
        .site-footer{
            background:var(--bg-surface);border-top:1px solid var(--border-subtle);
            padding:var(--spacing-lg) 0;margin-top:var(--spacing-2xl);
            box-shadow:0 -1px 0 var(--border-neon);
        }
        .footer-inner{
            width:100%;max-width:var(--max-width);margin:0 auto;
            padding:0 var(--spacing-md);
            display:flex;align-items:center;justify-content:space-between;
            flex-wrap:wrap;gap:var(--spacing-sm);
        }
        .footer-brand{
            font-weight:700;color:var(--neon-primary);
            font-size:1rem;letter-spacing:0.03em;
            text-shadow:0 0 8px var(--neon-primary-glow);
        }
        .footer-links{display:flex;gap:var(--spacing-md);flex-wrap:wrap;}
        .footer-links a{
            color:var(--text-secondary);font-size:0.9rem;
            transition:all var(--transition-fast);
        }
        .footer-links a:hover{color:var(--neon-primary);text-shadow:0 0 6px var(--neon-primary-glow);}
        .footer-copy{color:var(--text-muted);font-size:0.82rem;}

        /* RESPONSIVE */
        @media(max-width:1024px){
            .related-grid{grid-template-columns:repeat(2,1fr);}
            .article-title{font-size:1.85rem;}
        }
        @media(max-width:768px){
            :root{--nav-height:60px;--spacing-xl:40px;--spacing-2xl:56px;}
            .header-inner{padding:0 var(--spacing-sm);}
            .logo-text{font-size:1.05rem;}
            .logo-icon{font-size:1.3rem;}
            .nav-links{
                position:fixed;top:var(--nav-height);right:-320px;
                width:280px;height:calc(100vh - var(--nav-height));
                flex-direction:column;align-items:stretch;gap:0;
                background:var(--bg-nav);backdrop-filter:blur(28px);
                -webkit-backdrop-filter:blur(28px);
                border-left:1px solid var(--border-neon);
                border-bottom:1px solid var(--border-neon);
                border-radius:0 0 0 var(--radius-lg);
                padding:var(--spacing-md);
                transition:right var(--transition-smooth);
                z-index:999;
                box-shadow:-8px 0 30px rgba(0,230,118,0.1);
            }
            .nav-links.open{right:0;}
            .nav-links li a{
                padding:13px 16px;border-radius:var(--radius-md);
                font-size:1rem;width:100%;
            }
            .nav-cta-btn{display:none !important;}
            .nav-cta-btn-mobile{display:inline-flex !important;margin-top:var(--spacing-sm);width:100%;justify-content:center;}
            .mobile-toggle{display:flex;align-items:center;justify-content:center;}
            .article-title{font-size:1.55rem;}
            .related-grid{grid-template-columns:1fr;}
            .footer-inner{flex-direction:column;text-align:center;gap:var(--spacing-sm);}
            .container--article{padding:0 var(--spacing-sm);}
            .article-body{font-size:1rem;}
        }
        @media(max-width:520px){
            .article-title{font-size:1.32rem;}
            .article-excerpt{font-size:0.95rem;}
            .article-meta-row{gap:8px;}
            .related-card-title{font-size:0.92rem;}
            .breadcrumb{font-size:0.8rem;}
            .cta-section h3{font-size:1.2rem;}
        }