:root {
            --x7bg-primary: #ff6a00;
            --x7bg-primary-dark: #e65f00;
            --x7bg-secondary: #2b2d42;
            --x7bg-text: #1d1d1f;
            --x7bg-text-light: #86868b;
            --x7bg-bg: #ffffff;
            --x7bg-bg-alt: #f5f5f7;
            --x7bg-white: #ffffff;
            --x7bg-accent: #0071e3;
            --x7bg-border: rgba(0,0,0,0.1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            color: var(--x7bg-text);
            background-color: var(--x7bg-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航栏 */
        .x7bg-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--x7bg-border);
            z-index: 1000;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
        }

        .x7bg-nav-container {
            max-width: 1400px;
            width: 100%;
            margin: 0 auto;
            padding: 0 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .x7bg-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .x7bg-logo img {
            height: 32px;
            width: auto;
        }

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

        .x7bg-nav-links a {
            text-decoration: none;
            color: var(--x7bg-text);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

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

        /* Hero 区域 - 独特分割设计 */
        .x7bg-hero {
            padding-top: 64px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, #fff 50%, #f9f9f9 50%);
            overflow: hidden;
            flex-wrap: wrap;
        }

        .x7bg-hero-inner {
            max-width: 1400px;
            margin: 0 auto;
            padding: 64px 32px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            width: 100%;
        }

        .x7bg-hero-content {
            flex: 1;
            min-width: 320px;
            padding-right: 48px;
        }

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

        .x7bg-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
            color: var(--x7bg-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .x7bg-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .x7bg-vs-card {
            background: white;
            padding: 48px;
            border-radius: 32px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
            position: relative;
            width: 100%;
            max-width: 500px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .x7bg-vs-badge {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--x7bg-primary);
            color: white;
            padding: 8px 24px;
            border-radius: 20px;
            font-weight: bold;
            font-size: 14px;
        }

        /* 效率解决方案区块 */
        .x7bg-efficiency-section {
            padding: 96px 32px;
            background-color: var(--x7bg-bg-alt);
        }

        .x7bg-section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
        }

        .x7bg-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 3rem);
            margin-bottom: 16px;
            color: var(--x7bg-secondary);
        }

        .x7bg-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .x7bg-card {
            background: var(--x7bg-white);
            padding: 40px;
            border-radius: 24px;
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
            min-width: 0;
        }

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

        .x7bg-card-tag {
            display: inline-block;
            color: var(--x7bg-primary);
            font-weight: bold;
            margin-bottom: 16px;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .x7bg-card-h3 {
            font-size: 24px;
            margin-bottom: 24px;
            color: var(--x7bg-secondary);
        }

        .x7bg-tool-list {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
        }

        .x7bg-tool-item {
            margin-bottom: 12px;
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--x7bg-text-light);
        }

        .x7bg-tool-item::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--x7bg-primary);
            font-weight: bold;
        }

        .x7bg-boost-box {
            background: rgba(255, 106, 0, 0.05);
            padding: 16px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .x7bg-boost-label {
            font-size: 14px;
            font-weight: 600;
        }

        .x7bg-boost-value {
            font-size: 24px;
            font-weight: 800;
            color: var(--x7bg-primary);
        }

        /* 核心对比区块 */
        .x7bg-comparison-detail {
            padding: 96px 32px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .x7bg-split-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
            flex-wrap: wrap;
        }

        .x7bg-split-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .x7bg-split-text {
            flex: 1;
            min-width: 300px;
        }

        .x7bg-split-visual {
            flex: 1;
            min-width: 300px;
            background: linear-gradient(45deg, #f0f0f0, #ffffff);
            height: 400px;
            border-radius: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .x7bg-data-point {
            position: absolute;
            background: white;
            padding: 16px 24px;
            border-radius: 16px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            font-weight: 600;
            border-left: 4px solid var(--x7bg-primary);
        }

        /* 动态资讯区块 */
        .x7bg-news-section {
            padding: 96px 32px;
            background-color: var(--x7bg-secondary);
            color: white;
        }

        .x7bg-news-section .x7bg-section-title {
            color: white;
        }

        .x7bg-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .x7bg-news-card {
            background: rgba(255, 255, 255, 0.05);
            padding: 32px;
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: background 0.3s;
            text-decoration: none;
            color: white;
        }

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

        /* 页脚 */
        .x7bg-footer {
            padding: 64px 32px;
            background: #f9f9f9;
            border-top: 1px solid var(--x7bg-border);
        }

        .x7bg-footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 48px;
        }

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

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

        .x7bg-footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }

        .x7bg-footer-column h4 {
            margin-bottom: 24px;
            font-size: 16px;
            color: var(--x7bg-secondary);
        }

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

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

        .x7bg-footer-column a {
            text-decoration: none;
            color: var(--x7bg-text-light);
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .x7bg-copyright {
            width: 100%;
            text-align: center;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid var(--x7bg-border);
            color: var(--x7bg-text-light);
            font-size: 12px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .x7bg-nav-links {
                display: none;
            }
            .x7bg-hero-inner {
                padding: 48px 24px;
            }
            .x7bg-hero-content {
                padding-right: 0;
                text-align: center;
            }
            .x7bg-hero-subtitle {
                margin: 0 auto 40px;
            }
            .x7bg-split-row {
                gap: 32px;
            }
            .x7bg-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 按钮样式 */
        .x7bg-btn {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
            font-size: 16px;
        }

        .x7bg-btn-primary {
            background: linear-gradient(90deg, var(--x7bg-primary), #ff8c3a);
            color: white;
            box-shadow: 0 10px 20px rgba(255, 106, 0, 0.2);
        }

        .x7bg-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 106, 0, 0.3);
        }

        .x7bg-btn-outline {
            background: transparent;
            border: 2px solid var(--x7bg-secondary);
            color: var(--x7bg-secondary);
            margin-left: 16px;
        }

        .x7bg-btn-outline:hover {
            background: var(--x7bg-secondary);
            color: white;
        }