:root {
            --lbqr81-primary: #0055aa;
            --lbqr81-secondary: #2c3e50;
            --lbqr81-accent: #00d2ff;
            --lbqr81-bg-light: #f8f9fa;
            --lbqr81-text-dark: #1a1a1a;
            --lbqr81-text-muted: #666666;
            --lbqr81-white: #ffffff;
            --lbqr81-glass: rgba(255, 255, 255, 0.9);
            --lbqr81-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            --lbqr81-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        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;
        }

        /* 导航栏设计 */
        .lbqr81-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--lbqr81-glass);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--lbqr81-transition);
        }

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

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

        .lbqr81-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .lbqr81-nav-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .lbqr81-nav-item a {
            text-decoration: none;
            color: var(--lbqr81-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--lbqr81-transition);
            position: relative;
            padding: 8px 0;
        }

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

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

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

        /* Hero 区设计 - 独特对角线分割结构 */
        .lbqr81-hero {
            padding-top: 160px;
            padding-bottom: 100px;
            background: linear-gradient(135deg, #003366 0%, #0055aa 100%);
            color: var(--lbqr81-white);
            position: relative;
            overflow: hidden;
        }

        .lbqr81-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 100%;
            height: 100px;
            background: var(--lbqr81-bg-light);
            clip-path: polygon(100% 0, 0% 100%, 100% 100%);
        }

        .lbqr81-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
            position: relative;
            z-index: 2;
        }

        .lbqr81-hero-content {
            max-width: 800px;
            word-break: break-word;
        }

        .lbqr81-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .lbqr81-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            opacity: 0.9;
            margin-bottom: 40px;
            max-width: 600px;
        }

        .lbqr81-search-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        /* 核心技术解构区块 */
        .lbqr81-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .lbqr81-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            text-align: center;
            margin-bottom: 64px;
            color: var(--lbqr81-secondary);
            font-weight: 700;
        }

        .lbqr81-grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            min-width: 0;
        }

        .lbqr81-tech-card {
            background: var(--lbqr81-white);
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--lbqr81-shadow);
            transition: var(--lbqr81-transition);
            border: 1px solid rgba(0, 0, 0, 0.03);
            min-width: 0;
        }

        .lbqr81-tech-card:hover {
            transform: translateY(-10px);
            border-color: var(--lbqr81-primary);
        }

        .lbqr81-card-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 85, 170, 0.1);
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--lbqr81-primary);
            font-weight: 700;
        }

        .lbqr81-tech-card h3 {
            margin-bottom: 16px;
            font-size: 1.5rem;
            color: var(--lbqr81-primary);
        }

        /* 场景化工作流 - 交错布局 */
        .lbqr81-workflow {
            background: var(--lbqr81-white);
        }

        .lbqr81-flex-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
            min-width: 0;
        }

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

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

        .lbqr81-workflow-img {
            background: #eef2f7;
            border-radius: 24px;
            padding: 30px;
            box-shadow: inset 0 0 40px rgba(0,0,0,0.05);
            text-align: center;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .lbqr81-workflow-img .lbqr81-placeholder {
            height: 250px;
            background: linear-gradient(45deg, #dce4ee, #f1f4f8);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #8899a6;
            font-weight: 600;
        }

        .lbqr81-step-list {
            list-style: none;
            margin-top: 24px;
        }

        .lbqr81-step-item {
            padding: 12px 0;
            border-bottom: 1px dashed #eee;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .lbqr81-step-item::before {
            content: '✓';
            color: #28a745;
            font-weight: bold;
        }

        /* 插件协议网格 */
        .lbqr81-plugin-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin-top: 48px;
            min-width: 0;
        }

        .lbqr81-plugin-box {
            background: #fdfdfd;
            border-left: 4px solid var(--lbqr81-primary);
            padding: 24px;
            border-radius: 0 16px 16px 0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            min-width: 0;
        }

        .lbqr81-plugin-type {
            font-weight: 700;
            color: var(--lbqr81-primary);
            display: block;
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        /* 发展历程 - 垂直时间线 */
        .lbqr81-timeline {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            padding: 40px 0;
        }

        .lbqr81-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            width: 2px;
            height: 100%;
            background: #e0e0e0;
            transform: translateX(-50%);
        }

        .lbqr81-timeline-item {
            margin-bottom: 48px;
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-width: 0;
        }

        .lbqr81-timeline-content {
            width: 45%;
            background: var(--lbqr81-white);
            padding: 24px;
            border-radius: 16px;
            box-shadow: var(--lbqr81-shadow);
            position: relative;
            min-width: 0;
        }

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

        .lbqr81-era-badge {
            background: var(--lbqr81-secondary);
            color: white;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            margin-bottom: 8px;
            display: inline-block;
        }

        /* 动态内容标记区块 */
        .lbqr81-articles-section {
            background: #f0f4f8;
        }

        /* 页脚设计 */
        .lbqr81-footer {
            background: var(--lbqr81-secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 40px;
        }

        .lbqr81-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
            min-width: 0;
        }

        .lbqr81-footer-brand {
            font-size: 1.5rem;
            color: var(--lbqr81-white);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .lbqr81-footer-links h4 {
            color: var(--lbqr81-white);
            margin-bottom: 24px;
        }

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

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

        .lbqr81-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: var(--lbqr81-transition);
        }

        .lbqr81-footer-links a:hover {
            color: var(--lbqr81-accent);
        }

        .lbqr81-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .lbqr81-nav-container {
                height: auto;
                padding: 16px 24px;
                flex-direction: column;
                gap: 16px;
            }

            .lbqr81-nav-menu {
                justify-content: center;
                gap: 12px;
            }

            .lbqr81-timeline::before {
                left: 20px;
            }

            .lbqr81-timeline-item {
                flex-direction: row !important;
                justify-content: flex-start;
                padding-left: 40px;
            }

            .lbqr81-timeline-content {
                width: 100%;
            }

            .lbqr81-hero {
                padding-top: 180px;
                text-align: center;
            }

            .lbqr81-hero-content {
                margin: 0 auto;
            }
        }