:root {
            --lbqr81-primary: #2c5282;
            --lbqr81-accent: #ed8936;
            --lbqr81-bg-dark: #1a202c;
            --lbqr81-bg-light: #f7fafc;
            --lbqr81-text-dark: #2d3748;
            --lbqr81-text-light: #edf2f7;
            --lbqr81-border: #e2e8f0;
            --lbqr81-code-bg: #2d3748;
            --lbqr81-spacing-unit: 8px;
        }

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

        body {
            font-family: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            color: var(--lbqr81-text-dark);
            background-color: var(--lbqr81-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .lbqr81-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--lbqr81-border);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .lbqr81-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .lbqr81-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .lbqr81-logo img {
            height: 48px;
            width: auto;
            display: block;
        }

        .lbqr81-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .lbqr81-menu a {
            text-decoration: none;
            color: var(--lbqr81-text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

        .lbqr81-menu a:hover {
            color: var(--lbqr81-primary);
        }

        .lbqr81-menu a.active {
            color: var(--lbqr81-primary);
        }

        .lbqr81-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--lbqr81-primary);
        }

        /* Hero 区块 - 独特控制台布局 */
        .lbqr81-hero {
            background: radial-gradient(circle at top right, #2d3748, #1a202c);
            color: var(--lbqr81-text-light);
            padding: 96px 24px;
            overflow: hidden;
            position: relative;
        }

        .lbqr81-hero-inner {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .lbqr81-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .lbqr81-hero-content h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: #fff;
        }

        .lbqr81-hero-content p {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            opacity: 0.9;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .lbqr81-hero-visual {
            flex: 1;
            min-width: 320px;
            background: rgba(0, 0, 0, 0.3);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
            font-family: 'Courier New', Courier, monospace;
        }

        .lbqr81-ini-line {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            word-break: break-all;
        }

        .lbqr81-ini-key { color: #81e6d9; }
        .lbqr81-ini-val { color: #f6ad55; }
        .lbqr81-ini-sec { color: #f687b3; font-weight: bold; }

        /* 系统解构区块 */
        .lbqr81-section {
            padding: 96px 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .lbqr81-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .lbqr81-section-title h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            margin-bottom: 16px;
            color: var(--lbqr81-primary);
        }

        .lbqr81-anatomy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .lbqr81-anatomy-card {
            background: #fff;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--lbqr81-border);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .lbqr81-anatomy-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }

        .lbqr81-anatomy-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--lbqr81-text-dark);
            border-left: 4px solid var(--lbqr81-accent);
            padding-left: 16px;
        }

        .lbqr81-plugin-list {
            list-style: none;
            margin-top: 16px;
        }

        .lbqr81-plugin-item {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--lbqr81-border);
        }

        .lbqr81-plugin-type {
            font-weight: bold;
            color: var(--lbqr81-primary);
            display: block;
        }

        /* 工作流展示 - 错位布局 */
        .lbqr81-workflow {
            background: #edf2f7;
            padding: 96px 24px;
        }

        .lbqr81-workflow-container {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .lbqr81-workflow-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 32px;
            width: 100%;
        }

        .lbqr81-workflow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .lbqr81-workflow-text {
            flex: 1;
            min-width: 300px;
        }

        .lbqr81-workflow-visual {
            flex: 1;
            min-width: 300px;
            background: var(--lbqr81-primary);
            color: #fff;
            padding: 48px;
            border-radius: 24px;
            position: relative;
        }

        .lbqr81-step {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 20px;
        }

        .lbqr81-step-num {
            background: var(--lbqr81-accent);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: bold;
            font-size: 0.8rem;
        }

        /* 发展路线 - 时间轴 */
        .lbqr81-roadmap {
            padding: 96px 24px;
            background: #fff;
        }

        .lbqr81-timeline {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            padding-left: 32px;
        }

        .lbqr81-timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: var(--lbqr81-border);
        }

        .lbqr81-timeline-item {
            position: relative;
            margin-bottom: 48px;
        }

        .lbqr81-timeline-item::after {
            content: '';
            position: absolute;
            left: -36px;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--lbqr81-primary);
            border: 4px solid #fff;
        }

        .lbqr81-timeline-era {
            font-weight: bold;
            color: var(--lbqr81-accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        /* 页脚 */
        .lbqr81-footer {
            background: var(--lbqr81-bg-dark);
            color: var(--lbqr81-text-light);
            padding: 64px 24px;
        }

        .lbqr81-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .lbqr81-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .lbqr81-footer-brand h4 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .lbqr81-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .lbqr81-footer-group h5 {
            margin-bottom: 20px;
            color: #fff;
        }

        .lbqr81-footer-group ul {
            list-style: none;
        }

        .lbqr81-footer-group li {
            margin-bottom: 12px;
        }

        .lbqr81-footer-group a {
            color: var(--lbqr81-text-light);
            text-decoration: none;
            opacity: 0.7;
            transition: opacity 0.3s;
        }

        .lbqr81-footer-group a:hover {
            opacity: 1;
        }

        @media (max-width: 768px) {
            .lbqr81-nav-container { height: auto; padding: 16px; }
            .lbqr81-menu { gap: 12px; margin-top: 16px; justify-content: center; }
            .lbqr81-hero { padding: 48px 24px; }
            .lbqr81-workflow-item { flex-direction: column !important; }
            .lbqr81-footer-content { flex-direction: column; }
        }