:root {
            --eztx-primary: #D42323;
            --eztx-primary-hover: #B81D1D;
            --eztx-dark: #1A1A1A;
            --eztx-text: #333333;
            --eztx-light: #F8F9FA;
            --eztx-white: #FFFFFF;
            --eztx-gray: #E0E0E0;
            --eztx-accent: #1E88E5;
            --eztx-max-width: 1400px;
            --eztx-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--eztx-text);
            background-color: var(--eztx-white);
            line-height: 1.7;
            word-break: keep-all;
            overflow-x: hidden;
            font-size: clamp(0.9rem, 0.5vw + 0.8rem, 1.1rem);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--eztx-transition);
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        @media (max-width: 768px) {
            .eztx-container {
                padding: 0 24px;
            }
        }

        /* 导航栏 */
        .eztx-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .eztx-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            min-width: 0;
        }

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

        .eztx-logo img {
            height: 36px;
            width: auto;
        }

        .eztx-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            min-width: 0;
        }

        .eztx-menu-item a {
            font-size: 15px;
            font-weight: 500;
            color: var(--eztx-dark);
            padding: 8px 4px;
            position: relative;
        }

        .eztx-menu-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--eztx-primary);
            transition: var(--eztx-transition);
            transform: translateX(-50%);
        }

        .eztx-menu-item a:hover::after,
        .eztx-menu-item.eztx-active a::after {
            width: 100%;
        }

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

        /* Hero 区块 - 独特非对称设计 */
        .eztx-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 90% 10%, rgba(212, 35, 35, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(30, 136, 229, 0.05) 0%, transparent 40%);
            position: relative;
            overflow: hidden;
        }

        .eztx-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            min-width: 0;
        }

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

        .eztx-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--eztx-dark);
            margin-bottom: 32px;
            letter-spacing: -1px;
        }

        .eztx-hero-subtitle {
            font-size: 1.25rem;
            color: #666;
            margin-bottom: 48px;
            max-width: 600px;
        }

        .eztx-download-panel {
            flex: 1;
            min-width: 320px;
            background: var(--eztx-white);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 20px 80px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(0, 0, 0, 0.03);
            position: relative;
            z-index: 2;
        }

        .eztx-os-tag {
            display: inline-block;
            background: var(--eztx-dark);
            color: var(--eztx-white);
            padding: 4px 16px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .eztx-main-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--eztx-primary);
            color: var(--eztx-white);
            padding: 18px 40px;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            width: 100%;
            margin-bottom: 24px;
            box-shadow: 0 10px 30px rgba(212, 35, 35, 0.3);
        }

        .eztx-main-btn:hover {
            background: var(--eztx-primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(212, 35, 35, 0.4);
        }

        .eztx-format-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
            gap: 12px;
        }

        .eztx-format-item {
            border: 1px solid var(--eztx-gray);
            padding: 12px;
            border-radius: 8px;
            text-align: center;
            font-size: 14px;
            cursor: pointer;
        }

        .eztx-format-item:hover {
            border-color: var(--eztx-primary);
            color: var(--eztx-primary);
            background: rgba(212, 35, 35, 0.02);
        }

        /* 协作引擎能力区块 */
        .eztx-engine-section {
            padding: 120px 0;
            background: var(--eztx-light);
        }

        .eztx-section-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .eztx-badge {
            color: var(--eztx-primary);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: block;
        }

        .eztx-section-title {
            font-size: clamp(2rem, 3vw, 2.8rem);
            color: var(--eztx-dark);
            font-weight: 700;
        }

        .eztx-engine-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 40px;
        }

        @media (max-width: 768px) {
            .eztx-engine-grid {
                grid-template-columns: 1fr;
            }
        }

        .eztx-engine-card {
            background: var(--eztx-white);
            padding: 48px;
            border-radius: 20px;
            transition: var(--eztx-transition);
            display: flex;
            flex-direction: column;
            min-width: 0;
            border: 1px solid transparent;
        }

        .eztx-engine-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.05);
            border-color: var(--eztx-gray);
        }

        .eztx-engine-icon {
            width: 56px;
            height: 56px;
            background: rgba(212, 35, 35, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
        }

        .eztx-engine-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--eztx-dark);
        }

        .eztx-engine-highlight {
            color: #555;
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .eztx-metrics {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px dashed var(--eztx-gray);
        }

        .eztx-metric-item {
            background: var(--eztx-light);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 13px;
        }

        .eztx-metric-label {
            color: #888;
            margin-right: 8px;
        }

        .eztx-metric-value {
            font-weight: 700;
            color: var(--eztx-dark);
        }

        /* 动态内容区块 - 技巧/动态 */
        .eztx-dynamic-section {
            padding: 120px 0;
            background: var(--eztx-white);
        }

        .eztx-article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 32px;
        }

        .eztx-article-card {
            min-width: 0;
            cursor: pointer;
        }

        .eztx-article-img {
            aspect-ratio: 16/9;
            background: var(--eztx-light);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            position: relative;
        }

        .eztx-article-img::after {
            content: 'WPS LINUX TIPS';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-weight: 800;
            color: rgba(0, 0, 0, 0.05);
            font-size: 2rem;
        }

        .eztx-article-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--eztx-dark);
        }

        /* 页脚 */
        .eztx-footer {
            background: var(--eztx-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 80px 0 40px;
        }

        .eztx-footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 64px;
            min-width: 0;
        }

        .eztx-footer-brand {
            flex: 1.5;
            min-width: 280px;
        }

        .eztx-footer-brand-name {
            color: var(--eztx-white);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
        }

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

        .eztx-footer-column-title {
            color: var(--eztx-white);
            font-weight: 600;
            margin-bottom: 20px;
        }

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

        .eztx-footer-column ul li a:hover {
            color: var(--eztx-white);
        }

        .eztx-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 40px;
            text-align: center;
            font-size: 14px;
        }

        /* 移动端菜单切换 */
        .eztx-mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }

        @media (max-width: 1100px) {
            .eztx-menu {
                display: none;
            }
            .eztx-mobile-toggle {
                display: block;
            }
        }