/* roulang page: index */
:root {
            --color-primary: #10B981;
            --color-primary-dark: #047857;
            --color-primary-glow: rgba(16, 185, 129, 0.28);
            --color-accent: #F59E0B;
            --color-slate: #64748B;
            --bg-deep: #0B0F17;
            --bg-surface: #111827;
            --bg-card: #1F2937;
            --text-main: #F9FAFB;
            --text-body: #9CA3AF;
            --text-muted: #6B7280;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-emerald: rgba(16, 185, 129, 0.35);
            --radius-card: 1rem;
            --radius-lg: 1.25rem;
            --shadow-card: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
            --shadow-emerald: 0 10px 30px -5px rgba(16, 185, 129, 0.25);
        }

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

        html, body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* 极细科技网格背景与微光装饰 */
        .bg-tech-grid {
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 36px 36px;
        }

        .bg-radial-emerald {
            background: radial-gradient(circle at 75% 20%, rgba(16, 185, 129, 0.14) 0%, rgba(4, 120, 87, 0.04) 40%, transparent 70%);
        }

        /* 统一容器与板块层级 */
        .site-container {
            width: 100%;
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .site-container { padding-left: 1.5rem; padding-right: 1.5rem; }
        }
        @media (min-width: 1024px) {
            .site-container { padding-left: 2rem; padding-right: 2rem; }
        }

        .section-block {
            position: relative;
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
            border-bottom: 1px solid var(--border-subtle);
        }

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

        .section-deep-contrast {
            background: linear-gradient(180deg, #070A10 0%, #0E1525 50%, #070A10 100%);
            border-top: 1px solid rgba(16, 185, 129, 0.2);
            border-bottom: 1px solid rgba(16, 185, 129, 0.2);
        }

        /* 卡片与交互状态 */
        .console-card {
            background: linear-gradient(145deg, rgba(31, 41, 55, 0.78) 0%, rgba(17, 24, 39, 0.92) 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .console-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-emerald);
            box-shadow: 0 22px 45px -12px rgba(0, 0, 0, 0.85), 0 0 25px 0 rgba(16, 185, 129, 0.16);
        }

        /* 按钮体系 */
        .btn-emerald {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #10B981 0%, #047857 100%);
            color: #FFFFFF;
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 0.75rem;
            border: 1px solid rgba(52, 211, 153, 0.4);
            box-shadow: var(--shadow-emerald);
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-emerald:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px -4px rgba(16, 185, 129, 0.45);
            filter: brightness(1.08);
        }

        .btn-emerald:focus-visible, .btn-outline-tech:focus-visible {
            outline: 2px solid #34D399;
            outline-offset: 3px;
        }

        .btn-outline-tech {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: rgba(31, 41, 55, 0.65);
            color: #F9FAFB;
            font-weight: 500;
            padding: 0.75rem 1.5rem;
            border-radius: 0.75rem;
            border: 1px solid rgba(100, 116, 139, 0.45);
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-tech:hover {
            transform: translateY(-2px);
            border-color: #10B981;
            color: #34D399;
            background: rgba(16, 185, 129, 0.08);
        }

        /* 导航链接高亮下划线 */
        .nav-anchor {
            position: relative;
            color: #D1D5DB;
            font-size: 0.925rem;
            font-weight: 500;
            padding: 0.5rem 0.65rem;
            transition: color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-anchor:hover, .nav-anchor.active {
            color: #10B981;
        }

        .nav-anchor::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0.65rem;
            right: 0.65rem;
            height: 2px;
            background-color: #10B981;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .nav-anchor:hover::after, .nav-anchor.active::after {
            transform: scaleX(1);
        }

        /* 脉冲呼吸灯 */
        @keyframes pulse-ring {
            0% { transform: scale(0.85); opacity: 0.9; }
            70% { transform: scale(2.2); opacity: 0; }
            100% { transform: scale(2.2); opacity: 0; }
        }
        .status-dot-pulse::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 9999px;
            background-color: #10B981;
            animation: pulse-ring 2s infinite;
        }

        /* 横向滑动槽隐藏滚动条但保留触控 */
        .horizontal-reel {
            scrollbar-width: thin;
            scrollbar-color: #047857 #111827;
        }
        .horizontal-reel::-webkit-scrollbar {
            height: 6px;
        }
        .horizontal-reel::-webkit-scrollbar-track {
            background: #111827;
            border-radius: 9999px;
        }
        .horizontal-reel::-webkit-scrollbar-thumb {
            background: #047857;
            border-radius: 9999px;
        }

        /* 表格定制 */
        .matrix-table th, .matrix-table td {
            padding: 1.1rem 1.25rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .matrix-table tr:hover td {
            background-color: rgba(16, 185, 129, 0.04);
        }

        /* 响应式适配断点 */
        @media (max-width: 1024px) {
            .section-block {
                padding-top: 4rem;
                padding-bottom: 4rem;
            }
        }
        @media (max-width: 768px) {
            .section-block {
                padding-top: 3.25rem;
                padding-bottom: 3.25rem;
            }
            .hero-heading {
                font-size: 2rem !important;
                line-height: 1.25 !important;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding-left: 0.875rem;
                padding-right: 0.875rem;
            }
            body {
                padding-bottom: 4.5rem;
            }
        }