:root {
            --lbqr81-primary: #0055aa;
            --lbqr81-secondary: #003366;
            --lbqr81-accent: #ff9900;
            --lbqr81-text: #2c3e50;
            --lbqr81-bg-light: #f4f7f9;
            --lbqr81-white: #ffffff;
            --lbqr81-gray: #e1e8ed;
            --lbqr81-spacing: 8px;
            --lbqr81-container: 1400px;
        }

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

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

        /* 导航菜单 */
        .lbqr81-navbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            padding: calc(var(--lbqr81-spacing) * 2) 0;
        }

        .lbqr81-nav-container {
            max-width: var(--lbqr81-container);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

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

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

        .lbqr81-nav-menu a {
            text-decoration: none;
            color: var(--lbqr81-text);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

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

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

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

        /* 独特 Hero 布局 - 非对称网格 */
        .lbqr81-hero-pricing {
            padding: 96px 0 64px;
            background: linear-gradient(135deg, #004499 0%, #002244 100%);
            color: var(--lbqr81-white);
            overflow: hidden;
        }

        .lbqr81-hero-inner {
            max-width: var(--lbqr81-container);
            margin: 0 auto;
            padding: 0 40px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 64px;
            align-items: center;
        }

        .lbqr81-hero-content {
            min-width: 0;
        }

        .lbqr81-hero-content h1 {
            font-size: clamp(2rem, 4vw + 0.5rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .lbqr81-hero-content p {
            font-size: 1.25rem;
            opacity: 0.9;
            margin-bottom: 32px;
            max-width: 600px;
        }

        /* 价格展示卡片 */
        .lbqr81-price-highlight {
            background: var(--lbqr81-white);
            color: var(--lbqr81-text);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.2);
            position: relative;
            min-width: 0;
        }

        .lbqr81-price-tag {
            font-size: 4rem;
            font-weight: 900;
            color: var(--lbqr81-primary);
            display: flex;
            align-items: baseline;
            margin-bottom: 8px;
        }

        .lbqr81-currency {
            font-size: 1.5rem;
            margin-right: 8px;
        }

        .lbqr81-price-label {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--lbqr81-gray);
            padding-bottom: 16px;
        }

        .lbqr81-benefit-list {
            list-style: none;
            margin-bottom: 32px;
        }

        .lbqr81-benefit-list li {
            padding: 12px 0;
            display: flex;
            align-items: center;
            font-weight: 500;
        }

        .lbqr81-benefit-list li::before {
            content: "✓";
            color: #2ecc71;
            margin-right: 12px;
            font-weight: bold;
        }

        .lbqr81-btn-buy {
            display: inline-block;
            width: 100%;
            text-align: center;
            background: linear-gradient(to right, var(--lbqr81-primary), var(--lbqr81-secondary));
            color: var(--lbqr81-white);
            padding: 18px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .lbqr81-btn-buy:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,85,170,0.3);
        }

        /* 详情分析区块 */
        .lbqr81-detail-section {
            padding: 96px 0;
            max-width: var(--lbqr81-container);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

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

        .lbqr81-section-title h2 {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            color: var(--lbqr81-secondary);
            margin-bottom: 16px;
        }

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

        .lbqr81-info-card {
            background: var(--lbqr81-white);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--lbqr81-gray);
            transition: all 0.3s ease;
            min-width: 0;
        }

        .lbqr81-info-card:hover {
            border-color: var(--lbqr81-primary);
            transform: translateY(-5px);
        }

        .lbqr81-card-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
            display: block;
        }

        .lbqr81-info-card h3 {
            margin-bottom: 16px;
            color: var(--lbqr81-secondary);
        }

        /* 常见问题区块 */
        .lbqr81-faq-box {
            background: var(--lbqr81-white);
            padding: 48px;
            border-radius: 24px;
            margin-top: 64px;
        }

        .lbqr81-faq-item {
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--lbqr81-gray);
        }

        .lbqr81-faq-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }

        .lbqr81-faq-q {
            font-weight: bold;
            font-size: 1.15rem;
            color: var(--lbqr81-primary);
            margin-bottom: 12px;
            display: block;
        }

        /* 动态内容标记 */
        .lbqr81-news-section {
            background: #fff;
            padding: 64px 40px;
            border-radius: 24px;
            margin: 64px auto;
            max-width: var(--lbqr81-container);
        }

        /* 页脚 */
        .lbqr81-footer {
            background: var(--lbqr81-secondary);
            color: rgba(255,255,255,0.8);
            padding: 80px 0 40px;
        }

        .lbqr81-footer-content {
            max-width: var(--lbqr81-container);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .lbqr81-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .lbqr81-footer-brand h2 {
            color: var(--lbqr81-white);
            margin-bottom: 24px;
        }

        .lbqr81-footer-links {
            flex: 2 1 600px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
            min-width: 0;
        }

        .lbqr81-link-group h4 {
            color: var(--lbqr81-white);
            margin-bottom: 20px;
        }

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

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

        .lbqr81-link-group a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }

        .lbqr81-link-group a:hover {
            color: var(--lbqr81-accent);
        }

        .lbqr81-copyright {
            text-align: center;
            padding-top: 48px;
            margin-top: 48px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 14px;
        }

        /* 响应式 */
        @media (max-width: 768px) {
            .lbqr81-nav-container {
                padding: 0 20px;
            }
            .lbqr81-hero-inner {
                grid-template-columns: 1fr;
                padding: 0 20px;
                gap: 40px;
            }
            .lbqr81-price-highlight {
                padding: 32px;
            }
            .lbqr81-nav-menu {
                gap: 12px;
            }
            .lbqr81-nav-menu a {
                font-size: 13px;
            }
        }