:root {
            --lbqr81-primary: #0055aa;
            --lbqr81-secondary: #003d7a;
            --lbqr81-accent: #ff8c00;
            --lbqr81-bg-light: #f8fafc;
            --lbqr81-text-dark: #1e293b;
            --lbqr81-text-muted: #64748b;
            --lbqr81-border: #e2e8f0;
            --lbqr81-code-bg: #1a202c;
            --lbqr81-spacing: 8px;
        }

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

        body {
            font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--lbqr81-text-dark);
            background-color: var(--lbqr81-bg-light);
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 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, 0.05);
        }

        .lbqr81-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            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;
            gap: 16px;
            list-style: none;
            flex-wrap: wrap;
            min-width: 0;
        }

        .lbqr81-nav-item a {
            text-decoration: none;
            color: var(--lbqr81-text-dark);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s ease;
        }

        .lbqr81-nav-item a:hover {
            color: var(--lbqr81-primary);
            background: rgba(0, 85, 170, 0.05);
        }

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

        /* Hero 区域 - 独特对角线布局 */
        .lbqr81-hero {
            position: relative;
            background: linear-gradient(135deg, #0055aa 0%, #002244 100%);
            color: white;
            padding: 120px 24px 160px;
            text-align: center;
            clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
        }

        .lbqr81-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .lbqr81-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .lbqr81-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 40px;
        }

        /* 核心解决内容 - 网格布局 */
        .lbqr81-main-section {
            max-width: 1100px;
            margin: -60px auto 64px;
            padding: 0 24px;
            position: relative;
            z-index: 10;
        }

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

        .lbqr81-solution-card {
            background: white;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--lbqr81-border);
            transition: transform 0.3s ease;
            min-width: 0;
        }

        .lbqr81-solution-card:hover {
            transform: translateY(-8px);
        }

        .lbqr81-card-tag {
            display: inline-block;
            background: rgba(0, 85, 170, 0.1);
            color: var(--lbqr81-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .lbqr81-card-title {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--lbqr81-text-dark);
        }

        /* 代码展示区 */
        .lbqr81-code-block {
            background: var(--lbqr81-code-bg);
            color: #a0aec0;
            padding: 20px;
            border-radius: 8px;
            font-family: "Consolas", monospace;
            font-size: 14px;
            margin: 16px 0;
            overflow-x: auto;
            border-left: 4px solid var(--lbqr81-accent);
        }

        .lbqr81-code-highlight {
            color: #63b3ed;
        }

        /* 流程诊断区 */
        .lbqr81-workflow-section {
            background: white;
            padding: 96px 24px;
            border-bottom: 1px solid var(--lbqr81-border);
        }

        .lbqr81-container {
            max-width: 1100px;
            margin: 0 auto;
        }

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

        .lbqr81-step-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            flex-wrap: wrap;
        }

        .lbqr81-step-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 24px;
            background: var(--lbqr81-bg-light);
            border-radius: 12px;
            min-width: 0;
        }

        .lbqr81-step-number {
            background: var(--lbqr81-primary);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: bold;
        }

        /* 技术剖析 */
        .lbqr81-anatomy-section {
            padding: 96px 24px;
            background: #f1f5f9;
        }

        .lbqr81-anatomy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 48px;
            align-items: center;
            flex-wrap: wrap;
        }

        .lbqr81-anatomy-content h3 {
            font-size: 28px;
            margin-bottom: 24px;
            color: var(--lbqr81-primary);
        }

        .lbqr81-plugin-tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }

        .lbqr81-plugin-tag {
            background: white;
            border: 1px solid var(--lbqr81-border);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
        }

        /* 发展历程 - 时间轴 */
        .lbqr81-roadmap {
            padding: 96px 24px;
        }

        .lbqr81-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0;
        }

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

        .lbqr81-timeline-item {
            margin-bottom: 48px;
            position: relative;
            width: 50%;
            padding: 0 40px;
            min-width: 0;
        }

        .lbqr81-timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .lbqr81-timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .lbqr81-timeline-dot {
            position: absolute;
            top: 0;
            width: 16px;
            height: 16px;
            background: var(--lbqr81-accent);
            border-radius: 50%;
            z-index: 5;
        }

        .lbqr81-timeline-item:nth-child(odd) .lbqr81-timeline-dot {
            right: -8px;
        }

        .lbqr81-timeline-item:nth-child(even) .lbqr81-timeline-dot {
            left: -8px;
        }

        /* 页脚 */
        .lbqr81-footer {
            background: #0f172a;
            color: white;
            padding: 80px 24px 40px;
        }

        .lbqr81-footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
            flex-wrap: wrap;
        }

        .lbqr81-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: white;
        }

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

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

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

        .lbqr81-footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

        .lbqr81-footer-links a:hover {
            color: white;
        }

        .lbqr81-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #1e293b;
            color: #64748b;
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .lbqr81-nav-container {
                height: auto;
                padding: 16px;
            }
            .lbqr81-nav-menu {
                margin-top: 16px;
                justify-content: center;
                width: 100%;
            }
            .lbqr81-hero {
                padding: 80px 24px 120px;
                clip-path: none;
            }
            .lbqr81-timeline::before {
                left: 20px;
            }
            .lbqr81-timeline-item {
                width: 100%;
                text-align: left !important;
                padding-left: 50px;
                left: 0 !important;
            }
            .lbqr81-timeline-dot {
                left: 12px !important;
            }
            .lbqr81-anatomy-grid {
                grid-template-columns: 1fr;
            }
        }