/* roulang page: index */
:root {
            --bg: #0A0E14;
            --bg-deep: #06080D;
            --panel: #121824;
            --line: rgba(0, 230, 156, 0.14);
            --primary: #00E69C;
            --secondary: #00D1FF;
            --accent: #FF4D8D;
            --text: #E8ECF1;
            --text-2: #8B94A7;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-glow: 0 0 18px rgba(0,230,156,0.18);
            --shadow-glow-lg: 0 0 32px rgba(0,230,156,0.26);
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html,body{font-family:'system-ui','-apple-system','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;background:var(--bg);color:var(--text);line-height:1.75;scroll-behavior:smooth}
        body{background-image:linear-gradient(rgba(0,230,156,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,230,156,0.04) 1px,transparent 1px);background-size:44px 44px;background-attachment:fixed}
        a{text-decoration:none;color:inherit;transition:color .2s ease}
        img{max-width:100%;display:block}
        .container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
        @media(min-width:768px){.container-x{padding-left:32px;padding-right:32px}}
        ::selection{background:rgba(0,230,156,0.3);color:#fff}
        .glass-nav{background:rgba(10,14,20,0.85);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,230,156,0.18);position:sticky;top:0;z-index:60}
        .nav-link{position:relative;color:var(--text-2);font-size:15px;font-weight:500;padding:6px 8px;transition:color .2s ease}
        .nav-link:hover{color:var(--text)}
        .nav-link.active{color:var(--primary);text-shadow:0 0 8px rgba(0,230,156,0.5)}
        .nav-link.active::after{content:'';position:absolute;left:8px;right:8px;bottom:0;height:2px;background:var(--primary);box-shadow:0 0 8px rgba(0,230,156,0.6);border-radius:2px}
        .btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#07100B;font-weight:800;font-size:15px;padding:12px 28px;border-radius:10px;border:none;cursor:pointer;transition:all .25s ease;box-shadow:0 2px 12px rgba(0,230,156,0.2)}
        .btn-primary:hover{box-shadow:0 0 24px rgba(0,230,156,0.45);transform:translateY(-2px)}
        .btn-primary:active{transform:translateY(0)}
        .btn-primary:focus-visible{outline:3px solid rgba(0,230,156,0.5);outline-offset:2px}
        .btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--primary);font-weight:700;font-size:15px;padding:12px 28px;border-radius:10px;border:1px solid var(--primary);cursor:pointer;transition:all .25s ease}
        .btn-secondary:hover{background:rgba(0,230,156,0.08);box-shadow:0 0 16px rgba(0,230,156,0.15);transform:translateY(-2px)}
        .btn-glow::before{content:'';position:absolute;top:0;left:-80%;width:40%;height:100%;background:linear-gradient(120deg,transparent,rgba(255,255,255,0.35),transparent);transform:skewX(-25deg);animation:shine 3s ease-in-out infinite}
        @keyframes shine{0%{left:-80%}60%{left:130%}100%{left:130%}}
        .card-common{background:var(--panel);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:24px;transition:all .3s ease}
        .card-common:hover{border-color:rgba(0,230,156,0.3);box-shadow:var(--shadow-glow);transform:translateY(-3px)}
        .section-title{font-size:28px;font-weight:800;margin-bottom:8px;text-shadow:0 0 12px rgba(0,230,156,0.25)}
        @media(min-width:768px){.section-title{font-size:34px}}
        .section-line{width:48px;height:2px;background:linear-gradient(90deg,var(--primary) 0%,transparent 100%);margin-bottom:24px;border-radius:2px}
        .timeline-num{font-family:'SFMono-Regular',Consolas,monospace;font-variant-numeric:tabular-nums}
        .badge-pill{display:inline-flex;align-items:center;background:rgba(0,230,156,0.08);border:1px solid rgba(0,230,156,0.25);color:var(--primary);font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;letter-spacing:0.3px}
        .badge-pink{background:rgba(255,77,141,0.1);border-color:rgba(255,77,141,0.25);color:#FF6B9E}
        .badge-cyan{background:rgba(0,209,255,0.1);border-color:rgba(0,209,255,0.25);color:#42D7FF}
        .faq-item{border-bottom:1px solid rgba(0,230,156,0.14);transition:border-color .3s ease}
        .faq-item:hover{border-color:rgba(0,230,156,0.4)}
        .faq-question{cursor:pointer;display:flex;align-items:center;justify-content:space-between;padding:20px 4px;font-weight:700;color:var(--text);font-size:17px;transition:color .2s ease}
        .faq-question:hover{color:var(--primary)}
        .faq-icon{width:24px;height:24px;border-radius:50%;border:1px solid rgba(0,230,156,0.4);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .3s ease;color:var(--primary);font-size:18px;font-weight:400}
        .faq-icon.rotate-45{transform:rotate(45deg)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
        .faq-answer-inner{padding:0 4px 20px;color:var(--text-2);font-size:15px;line-height:1.8}
        .num-card{background:rgba(18,24,36,0.7);border:1px solid rgba(0,230,156,0.12);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;transition:all .3s ease}
        .num-card:hover{border-color:rgba(0,230,156,0.3);box-shadow:var(--shadow-glow)}
        .testi-card{background:var(--panel);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius-lg);padding:32px;position:relative;transition:all .3s ease}
        .testi-card:hover{border-color:rgba(0,230,156,0.25);box-shadow:var(--shadow-glow-lg)}
        .testi-quote{font-size:42px;line-height:1;color:var(--primary);font-family:Georgia,serif;position:absolute;top:18px;right:24px;opacity:0.5}
        .news-card{background:var(--panel);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);overflow:hidden;transition:all .3s ease;display:flex;flex-direction:column;height:100%}
        .news-card:hover{border-color:rgba(0,230,156,0.3);box-shadow:var(--shadow-glow);transform:translateY(-3px)}
        .news-card img{height:168px;object-fit:cover;border-bottom:1px solid rgba(255,255,255,0.05)}
        .news-card-body{padding:20px;display:flex;flex-direction:column;flex:1}
        .read-more{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-weight:600;font-size:14px;transition:gap .2s ease}
        .read-more:hover{gap:8px}
        .hero-img-mask::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,14,20,0.92) 0%,rgba(10,14,20,0.65) 55%,rgba(10,14,20,0.35) 100%);z-index:1}
        .cta-border-gradient{background:linear-gradient(135deg,var(--primary),var(--secondary))}
        .footer-link{display:block;color:var(--text-2);font-size:14px;padding:4px 0;transition:color .2s ease}
        .footer-link:hover{color:var(--text)}
        .input-form{width:100%;background:var(--bg-deep);border:1px solid rgba(255,255,255,0.1);border-radius:10px;padding:14px 18px;color:var(--text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
        .input-form:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,230,156,0.15)}
        .input-form::placeholder{color:#5A6474}
        .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:280px;background:var(--bg-deep);z-index:100;transform:translateX(100%);transition:transform .35s ease;border-left:1px solid rgba(0,230,156,0.2);padding:32px 24px}
        .mobile-drawer.open{transform:translateX(0)}
        .drawer-backdrop{position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:99;display:none;backdrop-filter:blur(2px)}
        .drawer-backdrop.show{display:block}
        .hero-scroll-indicator{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-2);animation:floatY 2.4s ease-in-out infinite}
        @keyframes floatY{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}
        .solution-step{display:flex;gap:18px;align-items:flex-start}
        .step-dot{width:36px;height:36px;border-radius:50%;background:rgba(0,230,156,0.1);border:1px solid rgba(0,230,156,0.35);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:800;font-size:15px;flex-shrink:0}
        .stat-num{font-size:48px;font-weight:900;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1;text-shadow:0 0 18px rgba(0,230,156,0.3)}
        @media(min-width:768px){.stat-num{font-size:56px}}
        .grid-bg-soft{background-image:linear-gradient(rgba(0,230,156,0.06) 1px,transparent 1px),linear-gradient(90deg,rgba(0,230,156,0.06) 1px,transparent 1px);background-size:36px 36px}
        .dashboard-card{background:linear-gradient(135deg,rgba(18,24,36,0.6) 0%,rgba(10,14,20,0.8) 100%);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius-lg);padding:28px;transition:all .3s ease}
        .dashboard-card:hover{border-color:rgba(0,230,156,0.25);box-shadow:var(--shadow-glow)}
        .tag-live{display:inline-flex;align-items:center;gap:6px;background:rgba(255,77,141,0.1);border:1px solid rgba(255,77,141,0.3);color:#FF6B9E;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
        .tag-live::before{content:'';width:6px;height:6px;border-radius:50%;background:#FF4D8D;animation:pulse-dot 1.2s ease-in-out infinite}
        @keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)}}

/* roulang page: article */
:root {
            --bg: #0A0E14;
            --bg-deep: #06080D;
            --panel: #121824;
            --line: rgba(0, 230, 156, 0.14);
            --primary: #00E69C;
            --secondary: #00D1FF;
            --accent: #FF4D8D;
            --text: #E8ECF1;
            --text-2: #8B94A7;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-glow: 0 0 18px rgba(0, 230, 156, 0.18);
            --shadow-glow-lg: 0 0 32px rgba(0, 230, 156, 0.26);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            background: var(--bg);
            color: var(--text);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            background-image: linear-gradient(rgba(0, 230, 156, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 230, 156, 0.035) 1px, transparent 1px);
            background-size: 40px 40px;
            background-attachment: fixed;
        }
        
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        
        img {
            max-width: 100%;
            display: block;
        }
        
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        
        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        
        @media (min-width: 768px) {
            .container-x { padding: 0 1.5rem; }
        }
        
        @media (min-width: 1024px) {
            .container-x { padding: 0 2rem; }
        }
        
        /* ===== 导航 ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 230, 156, 0.18);
        }
        
        .main-header::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, var(--primary) 0%, transparent 50%, var(--primary) 100%);
            opacity: 0.35;
            pointer-events: none;
        }
        
        .nav-link {
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            transition: all 0.25s ease;
            position: relative;
        }
        
        .nav-link:hover {
            color: var(--text);
        }
        
        .nav-link.active {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(0, 230, 156, 0.5);
        }
        
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 156, 0.6);
        }
        
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            justify-content: center;
            align-items: center;
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
            transition: all 0.2s ease;
        }
        
        .hamburger:hover {
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(0, 230, 156, 0.15);
        }
        
        .mobile-drawer {
            display: none;
        }
        
        .mobile-drawer.open {
            display: block;
        }
        
        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0E14;
            font-weight: 800;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 15px;
            transition: all 0.25s ease;
            box-shadow: 0 0 12px rgba(0, 230, 156, 0.15);
        }
        
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(0, 230, 156, 0.45);
            transform: translateY(-1px);
        }
        
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(0, 230, 156, 0.4);
            color: var(--primary);
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 15px;
            transition: all 0.25s ease;
        }
        
        .btn-secondary:hover {
            background: rgba(0, 230, 156, 0.08);
            box-shadow: 0 0 16px rgba(0, 230, 156, 0.2);
        }
        
        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-2);
        }
        
        .breadcrumb a:hover {
            color: var(--primary);
        }
        
        .breadcrumb .sep {
            color: var(--text-2);
            opacity: 0.5;
        }
        
        /* ===== 文章排版 ===== */
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
            word-break: break-word;
        }
        
        .article-content h2 {
            font-size: 24px;
            font-weight: 800;
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 3px solid var(--primary);
            color: #fff;
            line-height: 1.4;
        }
        
        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 32px 0 12px;
            color: #fff;
        }
        
        .article-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 26px 0 10px;
            color: #fff;
        }
        
        .article-content p {
            margin: 16px 0;
        }
        
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: all 0.2s ease;
        }
        
        .article-content a:hover {
            text-shadow: 0 0 8px rgba(0, 230, 156, 0.4);
        }
        
        .article-content ul,
        .article-content ol {
            margin: 16px 0;
            padding-left: 24px;
        }
        
        .article-content li {
            margin: 6px 0;
        }
        
        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(0, 230, 156, 0.05);
            padding: 14px 18px;
            margin: 20px 0;
            border-radius: 0 10px 10px 0;
            color: var(--text-2);
        }
        
        .article-content img {
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            margin: 24px 0;
        }
        
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 15px;
            background: var(--panel);
            border-radius: 10px;
            overflow: hidden;
            display: block;
            overflow-x: auto;
        }
        
        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            text-align: left;
        }
        
        .article-content table th {
            background: rgba(0, 230, 156, 0.08);
            color: #fff;
            font-weight: 700;
        }
        
        .article-content pre {
            background: var(--bg-deep);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 18px;
            overflow-x: auto;
            margin: 20px 0;
            font-size: 14px;
            line-height: 1.7;
        }
        
        .article-content code {
            font-family: "JetBrains Mono", "Fira Code", monospace;
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 0.9em;
        }
        
        .article-content pre code {
            background: transparent;
            padding: 0;
        }
        
        .article-content hr {
            border: none;
            height: 1px;
            background: rgba(255, 255, 255, 0.08);
            margin: 32px 0;
        }
        
        /* ===== 标签 ===== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--primary);
            background: transparent;
            border: 1px solid rgba(0, 230, 156, 0.3);
            transition: all 0.2s ease;
        }
        
        .tag-pill:hover {
            background: rgba(0, 230, 156, 0.08);
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(0, 230, 156, 0.15);
        }
        
        /* ===== 推荐卡片 ===== */
        .recommend-card {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .recommend-card:hover {
            border-color: rgba(0, 230, 156, 0.3);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        
        .recommend-card .card-title {
            transition: color 0.2s ease;
        }
        
        .recommend-card:hover .card-title {
            color: var(--primary);
        }
        
        /* ===== 面板 ===== */
        .panel-card {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
        }
        
        /* ===== 区块标题线 ===== */
        .section-line {
            width: 48px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary) 0%, transparent 100%);
            margin-top: 8px;
        }
        
        .neon-title {
            text-shadow: 0 0 12px rgba(0, 230, 156, 0.25);
        }
        
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }
        
        /* ===== 返回链接 ===== */
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-2);
            font-size: 15px;
            transition: all 0.2s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 10px;
            background: transparent;
        }
        
        .back-link:hover {
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 156, 0.12);
        }
        
        /* ===== 页脚 ===== */
        .footer-link {
            display: block;
            color: var(--text-2);
            font-size: 14px;
            padding: 5px 0;
            transition: all 0.2s ease;
        }
        
        .footer-link:hover {
            color: var(--text);
        }
        
        /* ===== 文章元信息 ===== */
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            color: var(--text-2);
            font-size: 14px;
        }
        
        .article-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--text-2);
            opacity: 0.5;
            flex-shrink: 0;
        }
        
        .category-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(0, 209, 255, 0.08);
            border: 1px solid rgba(0, 209, 255, 0.25);
        }
        
        .category-badge:hover {
            background: rgba(0, 209, 255, 0.14);
            border-color: var(--secondary);
        }
        
        .source-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-2);
        }
        
        .source-label::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 6px var(--primary);
        }
        
        /* ===== 行截断 ===== */
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none !important;
            }
            .hamburger {
                display: flex;
            }
            .mobile-drawer {
                display: none;
            }
            .mobile-drawer.open {
                display: block;
            }
        }
        
        @media (min-width: 1025px) {
            .mobile-drawer {
                display: none !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        
        @media (max-width: 768px) {
            .article-content {
                font-size: 16px;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .article-content h3 {
                font-size: 18px;
            }
        }
        
        @media (max-width: 520px) {
            .btn-primary,
            .btn-secondary,
            .back-link {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .article-meta {
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0A0E14;
            --bg-deep: #06080D;
            --panel: #121824;
            --line: rgba(0, 230, 156, 0.14);
            --primary: #00E69C;
            --secondary: #00D1FF;
            --accent: #FF4D8D;
            --text: #E8ECF1;
            --text-2: #8B94A7;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-glow: 0 0 18px rgba(0, 230, 156, 0.18);
            --shadow-glow-lg: 0 0 32px rgba(0, 230, 156, 0.26);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg);
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            background-attachment: fixed;
            color: var(--text);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.75;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

        .container-x {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #06080D;
            font-weight: 800;
            border-radius: 10px;
            padding: 0.625rem 1.5rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(0, 230, 156, 0.45);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: 10px;
            padding: 0.625rem 1.5rem;
            font-weight: 700;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(0, 230, 156, 0.08);
            box-shadow: 0 0 14px rgba(0, 230, 156, 0.15);
        }

        .card-item {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: all 0.3s ease;
        }

        @media (min-width: 768px) {
            .card-item {
                padding: 2rem;
            }
        }

        .card-item:hover {
            border-color: rgba(0, 230, 156, 0.3);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .card-media {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .card-media:hover {
            border-color: rgba(0, 230, 156, 0.3);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .card-img-wrap {
            overflow: hidden;
            border-radius: 8px;
        }

        .card-img-wrap img {
            transition: transform 0.5s ease;
        }

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

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .footer-link {
            display: block;
            color: var(--text-2);
            font-size: 0.875rem;
            line-height: 2.4;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: var(--text);
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-bottom-color: rgba(0, 230, 156, 0.35);
        }

        .faq-item .faq-icon {
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 230, 156, 0.15);
        }

        .faq-item.open .faq-question-text {
            color: var(--primary);
        }

        .step-num {
            font-variant-numeric: tabular-nums;
            color: rgba(0, 230, 156, 0.3);
            transition: color 0.3s ease;
        }

        .card-item:hover .step-num {
            color: rgba(0, 230, 156, 0.75);
        }

        .hero-grid {
            background-color: var(--bg-deep);
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            border-radius: 999px;
            border: 1px solid rgba(0, 230, 156, 0.35);
            background: rgba(0, 230, 156, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            line-height: 1.6;
        }

        .number-glow {
            font-variant-numeric: tabular-nums;
            text-shadow: 0 0 16px rgba(0, 230, 156, 0.3);
        }

/* roulang page: category2 */
:root {
            --bg: #0A0E14;
            --bg-deep: #06080D;
            --panel: #121824;
            --line: rgba(0, 230, 156, 0.14);
            --primary: #00E69C;
            --secondary: #00D1FF;
            --accent: #FF4D8D;
            --text: #E8ECF1;
            --text-2: #8B94A7;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-glow: 0 0 18px rgba(0, 230, 156, 0.18);
            --shadow-glow-lg: 0 0 32px rgba(0, 230, 156, 0.26);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            background-image: linear-gradient(rgba(0, 230, 156, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 230, 156, 0.035) 1px, transparent 1px);
            background-size: 44px 44px;
            background-attachment: fixed;
        }

        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 230, 156, 0.14);
        }

        .nav-link {
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link:hover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(0, 230, 156, 0.5);
        }

        .nav-link.active {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(0, 230, 156, 0.5);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(0, 230, 156, 0.5);
        }

        .mobile-nav-link {
            font-size: 15px;
            color: var(--text-2);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .mobile-nav-link:hover {
            color: #fff;
        }

        .mobile-nav-link.active-mobile {
            color: var(--primary);
            font-weight: 600;
            text-shadow: 0 0 8px rgba(0, 230, 156, 0.5);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #06080D;
            font-weight: 800;
            border-radius: 10px;
            padding: 12px 26px;
            font-size: 15px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(0, 230, 156, 0.15);
        }

        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(0, 230, 156, 0.45);
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: 10px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            background: rgba(0, 230, 156, 0.08);
            box-shadow: 0 0 16px rgba(0, 230, 156, 0.15);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Section ===== */
        .section-tag {
            display: inline-block;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
        }

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

        .section-line {
            width: 48px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary) 0%, transparent 100%);
            margin-bottom: 24px;
        }

        /* ===== Cards ===== */
        .glow-card {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all 0.3s ease;
        }

        .glow-card:hover {
            border-color: rgba(0, 230, 156, 0.3);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .icon-badge {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(0, 230, 156, 0.08);
            border: 1px solid rgba(0, 230, 156, 0.2);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.72) 0%, rgba(10, 14, 20, 0.88) 100%);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 600px;
            height: 300px;
            transform: translate(-50%, -50%);
            background: radial-gradient(ellipse, rgba(0, 230, 156, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

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

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 230, 156, 0.3);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 0;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            transition: color 0.3s;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

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

        .faq-question.active {
            color: var(--primary);
        }

        .faq-icon {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: transform 0.3s ease, border-color 0.3s ease;
            color: var(--text-2);
        }

        .faq-question.active .faq-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease;
            color: var(--text-2);
            line-height: 1.8;
            font-size: 15px;
        }

        .faq-answer.open {
            max-height: 600px;
            padding-bottom: 22px;
        }

        /* ===== Process Steps ===== */
        .step-number {
            font-family: ui-monospace, 'SF Mono', 'Cascadia Code', monospace;
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.35;
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }

        /* ===== CTA ===== */
        .cta-band {
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            padding: 1px;
        }

        .cta-inner {
            background: var(--bg-deep);
            border-radius: calc(var(--radius-lg) - 1px);
            padding: 60px 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-inner::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 400px;
            height: 200px;
            transform: translate(-50%, -50%);
            background: radial-gradient(ellipse, rgba(0, 230, 156, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        /* ===== Footer ===== */
        .footer-link {
            display: block;
            color: var(--text-2);
            font-size: 14px;
            text-decoration: none;
            padding: 4px 0;
            transition: color 0.2s;
        }

        .footer-link:hover {
            color: #fff;
        }

        /* ===== Scroll indicator ===== */
        .scroll-indicator {
            animation: floatDown 2.2s ease-in-out infinite;
        }

        @keyframes floatDown {
            0%,
            100% {
                transform: translateY(0);
                opacity: 0.6;
            }
            50% {
                transform: translateY(8px);
                opacity: 1;
            }
        }

        /* ===== Mobile Drawer ===== */
        .mobile-drawer {
            display: none;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .hero-section {
                padding: 72px 0 56px;
            }
        }

        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding: 56px 0 40px;
            }
            .section-title {
                font-size: 24px;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
  --bg: #0A0E14;
  --bg-deep: #06080D;
  --panel: #121824;
  --line: rgba(0, 230, 156, 0.14);
  --primary: #00E69C;
  --secondary: #00D1FF;
  --accent: #FF4D8D;
  --text: #E8ECF1;
  --text-2: #8B94A7;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 18px rgba(0,230,156,0.18);
  --shadow-glow-lg: 0 0 32px rgba(0,230,156,0.26);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0,230,156,0.07), transparent),
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: auto, 40px 40px, 40px 40px;
  background-attachment: fixed;
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }

.container-x {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 768px) {
  .container-x { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
  .container-x { padding-left: 2rem; padding-right: 2rem; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,14,20,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(rgba(10,14,20,0.85), rgba(10,14,20,0.85)),
    linear-gradient(90deg, rgba(0,230,156,0.3), transparent 50%, rgba(0,230,156,0.3));
  background-origin: border-box;
  background-clip: padding-box, border-box;
}
.nav-link {
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav-link:hover { color: var(--text); }
.nav-link.active {
  color: var(--primary);
  text-shadow: 0 0 8px rgba(0,230,156,0.5);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(0,230,156,0.5);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: #06281E;
  font-weight: 800;
  padding: 0.65rem 1.4rem;
  border-radius: 10px;
  transition: all 0.2s;
  font-size: 15px;
}
.btn-primary:hover {
  box-shadow: 0 0 24px rgba(0,230,156,0.45);
  transform: translateY(-1px);
  color: #06281E;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  border-radius: 10px;
  transition: all 0.2s;
  font-size: 15px;
}
.btn-outline:hover {
  background: rgba(0,230,156,0.08);
  color: var(--primary);
}

.glow-heading {
  text-shadow: 0 0 12px rgba(0,230,156,0.25);
}
.section-title-line {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, transparent 100%);
  margin-bottom: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  transition: all 0.25s ease;
}
.card:hover {
  border-color: rgba(0,230,156,0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-question {
  cursor: pointer;
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--text);
  transition: color 0.2s;
  font-size: 16px;
}
.faq-question:hover { color: var(--primary); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-icon {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  color: var(--text-2);
  line-height: 1.75;
  font-size: 15px;
}
.faq-item.open .faq-answer { max-height: 300px; }

.footer-link {
  display: block;
  color: var(--text-2);
  font-size: 14px;
  padding: 0.3rem 0;
  transition: color 0.2s;
}
.footer-link:hover { color: var(--text); }

.hero-wrap {
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,14,20,0.78) 0%, rgba(10,14,20,0.85) 100%);
}
.hero-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(0,230,156,0.14), transparent 60%);
  pointer-events: none;
}

.notice-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  transition: all 0.25s ease;
  height: 100%;
}
.notice-card:hover {
  border-color: rgba(0,230,156,0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.75rem;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid transparent;
}
.pill-security { color: var(--accent); border-color: rgba(255,77,141,0.35); background: rgba(255,77,141,0.08); }
.pill-update { color: var(--secondary); border-color: rgba(0,209,255,0.35); background: rgba(0,209,255,0.08); }
.pill-maintain { color: var(--primary); border-color: rgba(0,230,156,0.35); background: rgba(0,230,156,0.08); }
.pill-optimize { color: var(--secondary); border-color: rgba(0,209,255,0.35); background: rgba(0,209,255,0.08); }

.cta-border {
  padding: 1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.cta-inner {
  background: var(--bg);
  border-radius: calc(var(--radius-lg) - 1px);
  padding: 3rem 1.5rem;
  text-align: center;
}
@media (min-width: 768px) {
  .cta-inner { padding: 4rem 2.5rem; }
}