/* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --eztx-primary: #1890ff;
            --eztx-primary-dark: #003a8c;
            --eztx-accent: #ff4d4f;
            --eztx-text-main: #262626;
            --eztx-text-sub: #595959;
            --eztx-bg-light: #f8f9fa;
            --eztx-bg-white: #ffffff;
            --eztx-glass: rgba(255, 255, 255, 0.85);
            --eztx-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            --eztx-radius: 16px;
            --eztx-container-width: 1400px;
        }

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

        /* 排版系统 */
        h1, h2, h3 {
            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, 4.5rem); font-weight: 800; }
        .eztx-fluid-h2 { font-size: clamp(1.8rem, 3vw + 0.5rem, 3rem); font-weight: 700; }
        .eztx-fluid-p { font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem); }

        /* 布局容器 */
        .eztx-container {
            max-width: var(--eztx-container-width);
            margin: 0 auto;
            padding: 0 48px;
            width: 100%;
        }

        /* 导航栏设计 */
        .eztx-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--eztx-glass);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .eztx-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

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

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

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

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

        .eztx-menu-item a:hover {
            color: var(--eztx-primary);
        }

        .eztx-menu-item a.active {
            color: var(--eztx-primary);
        }

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

        /* Hero 区 - 独特对角线分割感 */
        .eztx-hero {
            padding: 160px 0 96px;
            background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .eztx-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 60%;
            height: 140%;
            background: radial-gradient(circle, rgba(24,144,255,0.05) 0%, transparent 70%);
            transform: rotate(-15deg);
        }

        .eztx-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .eztx-hero-text {
            flex: 1;
            min-width: 320px;
        }

        .eztx-hero-visual {
            flex: 1;
            min-width: 320px;
            background: var(--eztx-bg-white);
            border-radius: var(--eztx-radius);
            box-shadow: var(--eztx-shadow);
            padding: 48px;
            border: 1px solid rgba(0,0,0,0.03);
            transform: perspective(1000px) rotateY(-5deg);
        }

        .eztx-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(24,144,255,0.1);
            color: var(--eztx-primary);
            border-radius: 32px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .eztx-hero-title {
            margin-bottom: 24px;
            color: var(--eztx-primary-dark);
        }

        .eztx-hero-subtitle {
            color: var(--eztx-text-sub);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .eztx-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .eztx-btn {
            padding: 16px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            text-align: center;
        }

        .eztx-btn-primary {
            background: var(--eztx-primary);
            color: white;
            box-shadow: 0 4px 14px rgba(24,144,255,0.3);
        }

        .eztx-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(24,144,255,0.4);
        }

        /* 协作引擎能力区块 */
        .eztx-engine-section {
            padding: 96px 0;
            background: var(--eztx-bg-white);
        }

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

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

        .eztx-card {
            background: var(--eztx-bg-light);
            padding: 48px;
            border-radius: var(--eztx-radius);
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .eztx-card:hover {
            background: white;
            border-color: var(--eztx-primary);
            box-shadow: var(--eztx-shadow);
            transform: translateY(-10px);
        }

        .eztx-engine-tag {
            font-family: monospace;
            font-size: 12px;
            color: var(--eztx-text-sub);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .eztx-metrics {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .eztx-metric-item {
            flex: 1;
            min-width: 100px;
        }

        .eztx-metric-val {
            display: block;
            font-size: 18px;
            font-weight: 700;
            color: var(--eztx-primary);
        }

        .eztx-metric-label {
            font-size: 12px;
            color: var(--eztx-text-sub);
        }

        /* 权限管控矩阵 */
        .eztx-matrix-section {
            padding: 96px 0;
            background: #001529;
            color: white;
            border-radius: 48px;
            margin: 0 24px;
        }

        .eztx-matrix-content {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
        }

        .eztx-matrix-text {
            flex: 1;
            min-width: 320px;
        }

        .eztx-matrix-features {
            flex: 1;
            min-width: 320px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }

        .eztx-feature-pill {
            background: rgba(255,255,255,0.05);
            padding: 24px;
            border-radius: 12px;
            border-left: 4px solid var(--eztx-primary);
        }

        /* 页脚设计 */
        .eztx-footer {
            padding: 96px 0 48px;
            background: var(--eztx-bg-light);
            margin-top: 96px;
        }

        .eztx-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .eztx-footer-brand p {
            margin-top: 16px;
            color: var(--eztx-text-sub);
            max-width: 300px;
        }

        .eztx-footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .eztx-footer-links {
            list-style: none;
        }

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

        .eztx-footer-links a {
            text-decoration: none;
            color: var(--eztx-text-sub);
            transition: color 0.3s;
        }

        .eztx-footer-links a:hover {
            color: var(--eztx-primary);
        }

        .eztx-copyright {
            padding-top: 32px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            font-size: 14px;
            color: var(--eztx-text-sub);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .eztx-container { padding: 0 32px; }
            .eztx-hero-visual { transform: none; }
        }

        @media (max-width: 768px) {
            .eztx-nav-wrapper { height: auto; padding: 16px 0; }
            .eztx-menu { display: none; } /* 移动端建议折叠菜单，此处简化 */
            .eztx-hero { padding: 120px 0 64px; }
            .eztx-grid { grid-template-columns: 1fr; }
            .eztx-matrix-section { margin: 0; border-radius: 0; }
        }