:root {
            --lbqr81-primary: #004a80;
            --lbqr81-accent: #00d4ff;
            --lbqr81-dark: #0f172a;
            --lbqr81-light: #f8fafc;
            --lbqr81-text: #334155;
            --lbqr81-border: #e2e8f0;
            --lbqr81-container-width: 1180px;
            --lbqr81-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        /* 导航栏 */
        .lbqr81-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            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: var(--lbqr81-container-width);
            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: 40px;
            width: auto;
            display: block;
        }

        .lbqr81-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 12px;
            min-width: 0;
        }

        .lbqr81-menu li a {
            text-decoration: none;
            color: var(--lbqr81-text);
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: var(--lbqr81-transition);
            font-size: 0.95rem;
        }

        .lbqr81-menu li a:hover {
            color: var(--lbqr81-primary);
            background: rgba(0, 74, 128, 0.05);
        }

        .lbqr81-menu li a.active {
            color: #fff;
            background: var(--lbqr81-primary);
        }

        /* Hero 区块 - 独特非对称布局 */
        .lbqr81-hero {
            padding: 96px 24px;
            background: linear-gradient(135deg, #f1f5f9 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .lbqr81-hero-content {
            max-width: var(--lbqr81-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .lbqr81-hero-text {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .lbqr81-hero-text h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--lbqr81-dark);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .lbqr81-hero-text p {
            font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem);
            color: #64748b;
            margin-bottom: 32px;
        }

        .lbqr81-hero-image {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .lbqr81-hero-image img {
            width: 100%;
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
            transform: perspective(1000px) rotateY(-5deg);
            transition: var(--lbqr81-transition);
        }

        .lbqr81-hero-image img:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        /* 插件体系解剖 */
        .lbqr81-anatomy {
            padding: 96px 24px;
            background-color: #fff;
        }

        .lbqr81-section-title {
            text-align: center;
            margin-bottom: 64px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .lbqr81-section-title h2 {
            font-size: 2.5rem;
            color: var(--lbqr81-dark);
            margin-bottom: 16px;
        }

        .lbqr81-anatomy-grid {
            max-width: var(--lbqr81-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 32px;
        }

        .lbqr81-anatomy-card {
            background: var(--lbqr81-light);
            padding: 40px;
            border-radius: 20px;
            border: 1px solid var(--lbqr81-border);
            transition: var(--lbqr81-transition);
            word-break: break-word;
        }

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

        .lbqr81-anatomy-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--lbqr81-primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 4px;
            margin-bottom: 20px;
        }

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

        /* 核心展示区 - 图文交替 */
        .lbqr81-feature-row {
            padding: 80px 24px;
            max-width: var(--lbqr81-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

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

        .lbqr81-feature-info {
            flex: 1;
            min-width: 300px;
            word-break: break-word;
        }

        .lbqr81-feature-info h3 {
            font-size: 2rem;
            margin-bottom: 24px;
            color: var(--lbqr81-primary);
        }

        .lbqr81-feature-visual {
            flex: 1;
            min-width: 300px;
        }

        .lbqr81-feature-visual img {
            width: 100%;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            display: block;
        }

        /* 场景工作流 */
        .lbqr81-workflows {
            padding: 96px 24px;
            background-color: var(--lbqr81-dark);
            color: #fff;
        }

        .lbqr81-workflow-container {
            max-width: var(--lbqr81-container-width);
            margin: 0 auto;
        }

        .lbqr81-workflow-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
        }

        .lbqr81-workflow-item {
            flex: 1;
            min-width: 300px;
            background: rgba(255,255,255,0.05);
            padding: 32px;
            border-radius: 16px;
            border-left: 4px solid var(--lbqr81-accent);
        }

        .lbqr81-workflow-item h4 {
            font-size: 1.25rem;
            margin-bottom: 20px;
            color: var(--lbqr81-accent);
        }

        .lbqr81-workflow-item ul {
            list-style: none;
        }

        .lbqr81-workflow-item li {
            margin-bottom: 12px;
            padding-left: 24px;
            position: relative;
            font-size: 0.95rem;
            color: #cbd5e1;
        }

        .lbqr81-workflow-item li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--lbqr81-accent);
        }

        /* 底部 */
        .lbqr81-footer {
            background: #f1f5f9;
            padding: 64px 24px 32px;
            border-top: 1px solid var(--lbqr81-border);
        }

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

        .lbqr81-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .lbqr81-footer-brand h2 {
            color: var(--lbqr81-primary);
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .lbqr81-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .lbqr81-footer-col h5 {
            font-size: 1rem;
            margin-bottom: 20px;
            color: var(--lbqr81-dark);
        }

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

        .lbqr81-footer-col li {
            margin-bottom: 10px;
        }

        .lbqr81-footer-col a {
            text-decoration: none;
            color: #64748b;
            font-size: 0.9rem;
            transition: var(--lbqr81-transition);
        }

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

        .lbqr81-copyright {
            max-width: var(--lbqr81-container-width);
            margin: 48px auto 0;
            padding-top: 32px;
            border-top: 1px solid var(--lbqr81-border);
            text-align: center;
            font-size: 0.85rem;
            color: #94a3b8;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .lbqr81-nav-container {
                height: auto;
                padding: 16px 24px;
            }
            .lbqr81-menu {
                margin-top: 16px;
                width: 100%;
                justify-content: center;
            }
            .lbqr81-hero {
                padding: 48px 24px;
            }
            .lbqr81-feature-row {
                gap: 32px;
            }
            .lbqr81-feature-row:nth-child(even) {
                flex-direction: row;
            }
        }