/* 变量定义 */
        :root {
            --wba18-primary: #00E5FF;
            --wba18-bg: #0B0D11;
            --wba18-card-bg: #16191E;
            --wba18-text: #E2E8F0;
            --wba18-text-muted: #94A3B8;
            --wba18-border: rgba(255, 255, 255, 0.1);
            --wba18-accent: linear-gradient(135deg, #00E5FF 0%, #007BFF 100%);
            --wba18-container-width: 1300px;
        }

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

        body {
            background-color: var(--wba18-bg);
            color: var(--wba18-text);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 流体字体 */
        h1 { font-size: clamp(2rem, 5vw + 1rem, 4rem); line-height: 1.2; font-weight: 800; margin-bottom: 24px; white-space: normal; }
        h2 { font-size: clamp(1.5rem, 3vw + 0.5rem, 2.5rem); margin-bottom: 32px; font-weight: 700; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); line-height: 1.8; color: var(--wba18-text-muted); word-break: break-word; overflow-wrap: break-word; }

        /* 布局容器 */
        .wba18-container {
            max-width: var(--wba18-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .wba18-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 13, 17, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--wba18-border);
        }

        .wba18-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 80px;
            min-width: 0;
        }

        .wba18-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .wba18-logo img {
            height: 32px;
            display: block;
        }

        .wba18-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .wba18-menu a {
            text-decoration: none;
            color: var(--wba18-text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .wba18-menu a:hover {
            color: var(--wba18-primary);
        }

        .wba18-menu a.wba18-active {
            color: var(--wba18-primary);
            position: relative;
        }

        .wba18-menu a.wba18-active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--wba18-primary);
            border-radius: 2px;
        }

        /* Hero下载区 - 独特中心化布局 */
        .wba18-hero {
            padding: 180px 0 100px;
            text-align: center;
            position: relative;
            background: radial-gradient(circle at top center, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
        }

        .wba18-hero-badge {
            display: inline-block;
            padding: 8px 16px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.2);
            border-radius: 100px;
            color: var(--wba18-primary);
            font-size: 14px;
            margin-bottom: 24px;
        }

        .wba18-download-hub {
            max-width: 800px;
            margin: 48px auto 0;
            background: var(--wba18-card-bg);
            border: 1px solid var(--wba18-border);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 40px 100px rgba(0,0,0,0.5);
            display: flex;
            flex-wrap: wrap;
            flex-direction: column;
            align-items: center;
            min-width: 0;
        }

        .wba18-main-btn {
            display: inline-flex;
            align-items: center;
            padding: 20px 48px;
            background: var(--wba18-accent);
            color: #fff;
            text-decoration: none;
            border-radius: 12px;
            font-size: 20px;
            font-weight: 700;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
            margin-bottom: 24px;
        }

        .wba18-main-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 229, 255, 0.5);
        }

        .wba18-version-info {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            border-top: 1px solid var(--wba18-border);
            padding-top: 24px;
            width: 100%;
            min-width: 0;
        }

        .wba18-v-item {
            text-align: left;
            min-width: 0;
        }

        .wba18-v-label {
            display: block;
            font-size: 12px;
            color: var(--wba18-text-muted);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .wba18-v-value {
            font-weight: 600;
            color: var(--wba18-text);
        }

        /* 核心优势 - Bento布局 */
        .wba18-section {
            padding: 96px 0;
        }

        .wba18-bento-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            min-width: 0;
        }

        .wba18-bento-card {
            background: var(--wba18-card-bg);
            border: 1px solid var(--wba18-border);
            border-radius: 20px;
            padding: 32px;
            transition: border-color 0.3s ease;
            min-width: 0;
        }

        .wba18-bento-card:hover {
            border-color: var(--wba18-primary);
        }

        .wba18-card-icon {
            width: 48px;
            height: 48px;
            background: rgba(255,255,255,0.05);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 24px;
        }

        /* 系统要求 - 代码块风格 */
        .wba18-spec-box {
            background: #000;
            border-radius: 12px;
            padding: 32px;
            font-family: "Fira Code", monospace;
            border: 1px solid var(--wba18-border);
            margin-top: 40px;
            min-width: 0;
        }

        .wba18-spec-line {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 12px;
            min-width: 0;
        }

        .wba18-spec-key {
            color: var(--wba18-primary);
            width: 150px;
            flex-shrink: 0;
        }

        .wba18-spec-val {
            color: #A5D6FF;
        }

        /* 动态资讯区块 */
        .wba18-news-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            min-width: 0;
        }

        .wba18-news-item {
            flex: 1;
            min-width: 280px;
            background: rgba(255,255,255,0.02);
            padding: 24px;
            border-radius: 16px;
            border-left: 4px solid var(--wba18-primary);
            text-decoration: none;
            transition: background 0.3s ease;
        }

        .wba18-news-item:hover {
            background: rgba(255,255,255,0.05);
        }

        .wba18-news-date {
            font-size: 12px;
            color: var(--wba18-text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .wba18-news-title {
            color: var(--wba18-text);
            font-weight: 600;
        }

        /* 页脚 */
        .wba18-footer {
            padding: 80px 0 40px;
            border-top: 1px solid var(--wba18-border);
            margin-top: 64px;
        }

        .wba18-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            min-width: 0;
        }

        .wba18-footer-brand {
            flex: 1;
            min-width: 240px;
        }

        .wba18-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            background: var(--wba18-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .wba18-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            min-width: 0;
        }

        .wba18-link-group {
            min-width: 120px;
        }

        .wba18-link-group h4 {
            margin-bottom: 20px;
            font-size: 14px;
            color: var(--wba18-text);
        }

        .wba18-link-group ul {
            list-style: none;
        }

        .wba18-link-group li {
            margin-bottom: 12px;
        }

        .wba18-link-group a {
            text-decoration: none;
            color: var(--wba18-text-muted);
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .wba18-link-group a:hover {
            color: var(--wba18-primary);
        }

        .wba18-copyright {
            margin-top: 64px;
            padding-top: 24px;
            border-top: 1px solid var(--wba18-border);
            text-align: center;
            font-size: 12px;
            color: var(--wba18-text-muted);
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .wba18-nav { height: auto; padding: 16px 0; }
            .wba18-menu { display: none; } /* 移动端建议折叠，此处简化 */
            .wba18-hero { padding: 120px 0 60px; }
            .wba18-download-hub { padding: 32px 20px; }
            .wba18-version-info { gap: 16px; }
            .wba18-v-item { width: 45%; }
            .wba18-section { padding: 64px 0; }
        }