:root {
            --wba18-primary: #3d7eff;
            --wba18-primary-dark: #1a56ff;
            --wba18-bg: #050505;
            --wba18-card-bg: #111111;
            --wba18-text: #e0e0e0;
            --wba18-text-dim: #a0a0a0;
            --wba18-border: #222222;
            --wba18-container-width: 1100px;
            --wba18-radius: 12px;
        }

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

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

        /* 导航系统 */
        .wba18-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(5, 5, 5, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--wba18-border);
        }

        .wba18-nav-container {
            max-width: var(--wba18-container-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

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

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

        .wba18-nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .wba18-nav-link {
            text-decoration: none;
            color: var(--wba18-text-dim);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

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

        .wba18-nav-link.wba18-active {
            color: var(--wba18-text);
            position: relative;
        }

        .wba18-nav-link.wba18-active::after {
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--wba18-primary);
        }

        /* Hero 下载区 */
        .wba18-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at top right, rgba(61, 126, 255, 0.08), transparent 40%),
                        radial-gradient(circle at bottom left, rgba(61, 126, 255, 0.05), transparent 30%);
            text-align: center;
        }

        .wba18-hero-content {
            max-width: 900px;
            margin: 0 auto;
            word-break: break-word;
        }

        .wba18-hero-title {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(to bottom, #fff, #888);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .wba18-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--wba18-text-dim);
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.8;
        }

        /* 下载卡片布局 */
        .wba18-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            max-width: var(--wba18-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .wba18-download-card {
            background: var(--wba18-card-bg);
            border: 1px solid var(--wba18-border);
            border-radius: var(--wba18-radius);
            padding: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            transition: transform 0.3s ease, border-color 0.3s;
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

        .wba18-download-card:hover {
            transform: translateY(-8px);
            border-color: var(--wba18-primary);
        }

        .wba18-download-card.wba18-featured {
            border-color: rgba(61, 126, 255, 0.5);
            background: linear-gradient(180deg, rgba(61, 126, 255, 0.05) 0%, var(--wba18-card-bg) 100%);
        }

        .wba18-os-icon {
            width: 64px;
            height: 64px;
            background: #222;
            border-radius: 16px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
        }

        .wba18-card-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .wba18-card-info {
            font-size: 14px;
            color: var(--wba18-text-dim);
            margin-bottom: 32px;
        }

        .wba18-btn-download {
            width: 100%;
            padding: 16px;
            border-radius: 8px;
            background: var(--wba18-primary);
            color: #fff;
            text-decoration: none;
            font-weight: 600;
            transition: opacity 0.3s;
            text-align: center;
        }

        .wba18-btn-download:hover {
            opacity: 0.9;
        }

        .wba18-version-tag {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 12px;
            background: rgba(255, 255, 255, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
            color: var(--wba18-text-dim);
        }

        /* 终端预览区 */
        .wba18-preview-section {
            padding: 96px 24px;
            max-width: var(--wba18-container-width);
            margin: 0 auto;
        }

        .wba18-terminal {
            background: #000;
            border: 1px solid var(--wba18-border);
            border-radius: 12px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.5);
            overflow: hidden;
            min-width: 0;
        }

        .wba18-terminal-header {
            background: #1a1a1a;
            padding: 12px 20px;
            display: flex;
            gap: 8px;
            border-bottom: 1px solid #222;
        }

        .wba18-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .wba18-dot.red { background: #ff5f56; }
        .wba18-dot.yellow { background: #ffbd2e; }
        .wba18-dot.green { background: #27c93f; }

        .wba18-terminal-body {
            padding: 32px;
            font-family: "Fira Code", monospace;
            font-size: 16px;
            line-height: 1.6;
            color: #d1d1d1;
            word-break: break-all;
        }

        .wba18-code-line { margin-bottom: 8px; }
        .wba18-cursor-ai-suggest {
            color: var(--wba18-primary);
            border-left: 2px solid var(--wba18-primary);
            padding-left: 12px;
            background: rgba(61, 126, 255, 0.1);
            margin: 12px 0;
            padding: 8px 12px;
        }

        /* 资讯区块 */
        .wba18-news-section {
            padding: 80px 24px;
            background: #080808;
        }

        .wba18-section-inner {
            max-width: var(--wba18-container-width);
            margin: 0 auto;
        }

        .wba18-section-title {
            font-size: 32px;
            margin-bottom: 48px;
            text-align: center;
        }

        .wba18-news-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .wba18-news-item {
            flex: 1;
            min-width: 300px;
            background: var(--wba18-card-bg);
            padding: 32px;
            border-radius: var(--wba18-radius);
            border: 1px solid var(--wba18-border);
        }

        /* 页脚 */
        .wba18-footer {
            padding: 80px 24px;
            border-top: 1px solid var(--wba18-border);
            margin-top: 80px;
        }

        .wba18-footer-container {
            max-width: var(--wba18-container-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .wba18-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .wba18-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: #fff;
        }

        .wba18-footer-brand p {
            color: var(--wba18-text-dim);
            font-size: 14px;
        }

        .wba18-footer-links {
            flex: 2;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
            min-width: 0;
        }

        .wba18-footer-column h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 16px;
        }

        .wba18-footer-column ul {
            list-style: none;
        }

        .wba18-footer-column li {
            margin-bottom: 12px;
        }

        .wba18-footer-column a {
            color: var(--wba18-text-dim);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .wba18-copyright {
            margin-top: 64px;
            text-align: center;
            color: #444;
            font-size: 13px;
            width: 100%;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .wba18-nav-menu {
                display: none; /* 简化移动端显示 */
            }
            .wba18-hero {
                padding: 120px 24px 60px;
            }
            .wba18-download-grid {
                grid-template-columns: 1fr;
            }
        }