:root {
            --x7bg-primary: #ff6600;
            --x7bg-primary-dark: #e65c00;
            --x7bg-accent: #4a90e2;
            --x7bg-bg-light: #f8fafc;
            --x7bg-text-main: #1e293b;
            --x7bg-text-muted: #64748b;
            --x7bg-white: #ffffff;
            --x7bg-shadow: 0 10px 30px rgba(0,0,0,0.05);
            --x7bg-radius: 16px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--x7bg-bg-light);
            color: var(--x7bg-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航栏设计 */
        .x7bg-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .x7bg-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .x7bg-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .x7bg-logo img {
            height: 32px;
            display: block;
        }

        .x7bg-nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .x7bg-nav-links a {
            text-decoration: none;
            color: var(--x7bg-text-main);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .x7bg-nav-links a:hover {
            color: var(--x7bg-primary);
        }

        /* 独特Hero布局：流体排版与非对称设计 */
        .x7bg-hero {
            padding: 160px 24px 96px;
            background: linear-gradient(135deg, #fff 0%, #fff5ed 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            position: relative;
        }

        .x7bg-hero-inner {
            max-width: 1100px;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .x7bg-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .x7bg-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--x7bg-text-main);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .x7bg-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.2rem, 1.4rem);
            color: var(--x7bg-text-muted);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .x7bg-hero-badge {
            display: inline-block;
            background: rgba(255, 102, 0, 0.1);
            color: var(--x7bg-primary);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* 智慧方案区块：网格系统 */
        .x7bg-section {
            padding: 96px 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .x7bg-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .x7bg-section-title {
            font-size: clamp(2rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .x7bg-scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .x7bg-scenario-card {
            background: var(--x7bg-white);
            border-radius: var(--x7bg-radius);
            padding: 48px;
            box-shadow: var(--x7bg-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .x7bg-scenario-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .x7bg-boost-tag {
            font-size: 48px;
            font-weight: 800;
            color: var(--x7bg-primary);
            margin-bottom: 8px;
        }

        .x7bg-boost-desc {
            font-size: 14px;
            color: var(--x7bg-text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 24px;
        }

        .x7bg-scenario-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 2px solid var(--x7bg-bg-light);
        }

        .x7bg-tool-list {
            list-style: none;
        }

        .x7bg-tool-item {
            margin-bottom: 16px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 16px;
        }

        .x7bg-tool-dot {
            width: 8px;
            height: 8px;
            background: var(--x7bg-primary);
            border-radius: 50%;
            margin-top: 8px;
            flex-shrink: 0;
        }

        /* 动态内容区块：文章列表 */
        .x7bg-dynamic-section {
            background: #1e293b;
            color: #fff;
            padding: 96px 24px;
            border-radius: 32px;
            margin: 0 24px 96px;
        }

        .x7bg-article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .x7bg-article-card {
            background: rgba(255,255,255,0.05);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.3s;
        }

        .x7bg-article-card:hover {
            background: rgba(255,255,255,0.1);
        }

        /* 按钮设计 */
        .x7bg-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
        }

        .x7bg-btn-primary {
            background: var(--x7bg-primary);
            color: #fff;
            box-shadow: 0 10px 20px rgba(255, 102, 0, 0.2);
        }

        .x7bg-btn-primary:hover {
            background: var(--x7bg-primary-dark);
            transform: scale(1.05);
        }

        /* 页脚设计 */
        .x7bg-footer {
            background: var(--x7bg-white);
            padding: 80px 24px 40px;
            border-top: 1px solid #eee;
        }

        .x7bg-footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
        }

        .x7bg-footer-brand {
            flex: 1;
            min-width: 200px;
        }

        .x7bg-brand-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--x7bg-primary);
            margin-bottom: 16px;
        }

        .x7bg-footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
            flex: 2;
        }

        .x7bg-footer-column h4 {
            margin-bottom: 24px;
            font-size: 16px;
        }

        .x7bg-footer-column ul {
            list-style: none;
        }

        .x7bg-footer-column li {
            margin-bottom: 12px;
        }

        .x7bg-footer-column a {
            color: var(--x7bg-text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }

        .x7bg-footer-column a:hover {
            color: var(--x7bg-primary);
        }

        .x7bg-copyright {
            text-align: center;
            padding-top: 48px;
            margin-top: 48px;
            border-top: 1px solid #f1f5f9;
            color: var(--x7bg-text-muted);
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .x7bg-nav-links {
                display: none; /* 简化移动端展示 */
            }
            .x7bg-hero {
                padding-top: 120px;
            }
            .x7bg-scenario-grid {
                grid-template-columns: 1fr;
            }
            .x7bg-dynamic-section {
                margin: 0 12px 64px;
            }
        }