/* 核心变量与重置 */
        :root {
            --eztx-primary: #D42F2D;
            --eztx-primary-dark: #b12523;
            --eztx-accent: #FF5722;
            --eztx-text-main: #1d1d1f;
            --eztx-text-sub: #424245;
            --eztx-bg-light: #f5f5f7;
            --eztx-white: #ffffff;
            --eztx-glass: rgba(255, 255, 255, 0.8);
            --eztx-shadow-soft: 0 8px 30px rgba(0,0,0,0.05);
            --eztx-radius: 16px;
            --eztx-container-width: 1300px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC","SF Pro Text","SF Pro Icons","PingFang SC","Helvetica Neue","Helvetica","Arial",sans-serif;
            color: var(--eztx-text-main);
            background-color: var(--eztx-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 排版系统 */
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            word-break: keep-all;
            white-space: normal;
        }

        p {
            line-height: 1.8;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        .eztx-fluid-h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4rem); }
        .eztx-fluid-h2 { font-size: clamp(1.8rem, 3vw + 0.5rem, 2.8rem); }
        .eztx-fluid-body { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); }

        /* 导航栏 */
        .eztx-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--eztx-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .eztx-nav-container {
            max-width: var(--eztx-container-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

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

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

        .eztx-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .eztx-menu-item a {
            text-decoration: none;
            color: var(--eztx-text-sub);
            font-size: 14px;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s ease;
            font-weight: 500;
        }

        .eztx-menu-item a:hover {
            background: rgba(0,0,0,0.04);
            color: var(--eztx-primary);
        }

        .eztx-menu-item.active a {
            color: var(--eztx-primary);
            background: rgba(212, 47, 45, 0.08);
        }

        /* Hero 区域 - 独特对角线分割设计 */
        .eztx-hero {
            position: relative;
            padding: 160px 24px 100px;
            background: linear-gradient(165deg, #fff 50%, #fff5f5 50%);
            min-height: 80vh;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .eztx-hero-content {
            max-width: 900px;
            width: 100%;
            min-width: 0;
        }

        .eztx-badge {
            display: inline-block;
            padding: 6px 16px;
            background: linear-gradient(90deg, #D42F2D, #FF5722);
            color: white;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            box-shadow: 0 4px 15px rgba(212, 47, 45, 0.3);
        }

        .eztx-hero-title {
            color: var(--eztx-text-main);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .eztx-hero-subtitle {
            color: var(--eztx-text-sub);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 会员权益卡片展示 */
        .eztx-section {
            padding: 96px 24px;
            max-width: var(--eztx-container-width);
            margin: 0 auto;
        }

        .eztx-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .eztx-feature-card {
            background: var(--eztx-white);
            border-radius: var(--eztx-radius);
            padding: 48px;
            border: 1px solid rgba(0,0,0,0.06);
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

        .eztx-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border-color: var(--eztx-primary);
        }

        .eztx-feature-icon {
            width: 64px;
            height: 64px;
            background: #fff5f5;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 32px;
        }

        .eztx-feature-title {
            margin-bottom: 16px;
            color: var(--eztx-text-main);
        }

        /* 协作引擎能力区块 - 独特深色背景对比 */
        .eztx-engine-wrapper {
            background: #111;
            color: white;
            padding: 120px 0;
            margin-top: 64px;
            border-radius: 40px;
        }

        .eztx-engine-header {
            text-align: center;
            padding: 0 24px;
            margin-bottom: 80px;
        }

        .eztx-engine-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            padding: 0 40px;
            justify-content: center;
        }

        .eztx-engine-item {
            flex: 1;
            min-width: 300px;
            max-width: 550px;
            background: rgba(255,255,255,0.05);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .eztx-engine-tag {
            color: var(--eztx-accent);
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: block;
        }

        .eztx-engine-metrics {
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
        }

        .eztx-metric {
            background: rgba(255,255,255,0.1);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13px;
        }

        /* 会员对比表 */
        .eztx-comparison-container {
            margin-top: 80px;
            overflow-x: auto;
            border-radius: 24px;
            box-shadow: var(--eztx-shadow-soft);
        }

        .eztx-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            min-width: 800px;
        }

        .eztx-table th, .eztx-table td {
            padding: 24px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }

        .eztx-table th {
            background: #fafafa;
            font-weight: 600;
        }

        .eztx-table .eztx-highlight-col {
            background: rgba(212, 47, 45, 0.02);
            border-left: 2px solid var(--eztx-primary);
            border-right: 2px solid var(--eztx-primary);
        }

        /* 按钮设计 */
        .eztx-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .eztx-btn {
            display: inline-flex;
            align-items: center;
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .eztx-btn-primary {
            background: var(--eztx-primary);
            color: white;
        }

        .eztx-btn-primary:hover {
            background: var(--eztx-primary-dark);
            transform: scale(1.02);
        }

        .eztx-btn-outline {
            border: 2px solid var(--eztx-primary);
            color: var(--eztx-primary);
        }

        .eztx-btn-outline:hover {
            background: rgba(212, 47, 45, 0.05);
        }

        /* 页脚 */
        .eztx-footer {
            background: #f9f9f9;
            padding: 80px 24px;
            border-top: 1px solid #eee;
        }

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

        .eztx-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .eztx-footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--eztx-primary);
        }

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

        .eztx-footer-col h4 {
            margin-bottom: 24px;
            font-size: 16px;
        }

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

        .eztx-footer-col ul li {
            margin-bottom: 12px;
        }

        .eztx-footer-col a {
            color: var(--eztx-text-sub);
            text-decoration: none;
            font-size: 14px;
        }

        .eztx-footer-bottom {
            max-width: var(--eztx-container-width);
            margin: 48px auto 0;
            padding-top: 32px;
            border-top: 1px solid #eee;
            text-align: center;
            color: #999;
            font-size: 13px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .eztx-nav-container {
                height: auto;
                padding: 12px 16px;
            }
            .eztx-menu {
                width: 100%;
                margin-top: 12px;
                justify-content: center;
            }
            .eztx-hero {
                padding-top: 120px;
            }
            .eztx-grid {
                grid-template-columns: 1fr;
            }
            .eztx-engine-item {
                min-width: 100%;
            }
            .eztx-btn {
                width: 100%;
                justify-content: center;
            }
        }