:root {
            --wba18-primary: #3b82f6;
            --wba18-secondary: #10b981;
            --wba18-bg: #050505;
            --wba18-card-bg: #111111;
            --wba18-text: #e5e7eb;
            --wba18-text-dim: #9ca3af;
            --wba18-border: #262626;
            --wba18-accent: #8b5cf6;
            --wba18-spacing-unit: 8px;
        }

        * {
            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, "Noto Sans", sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局容器 */
        .wba18-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 calc(var(--wba18-spacing-unit) * 3);
        }

        /* 导航栏 */
        .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-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .wba18-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .wba18-logo img {
            height: 32px;
            width: auto;
            border-radius: 4px;
        }

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

        .wba18-nav-item a {
            text-decoration: none;
            color: var(--wba18-text-dim);
            font-size: 0.95rem;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .wba18-nav-item a:hover,
        .wba18-nav-item a.active {
            color: var(--wba18-primary);
        }

        /* Hero 区域 - 独特偏移布局 */
        .wba18-hero {
            padding-top: 160px;
            padding-bottom: 80px;
            position: relative;
            overflow: hidden;
        }

        .wba18-hero-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
        }

        .wba18-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .wba18-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #fff 0%, #9ca3af 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .wba18-hero-subtitle {
            font-size: clamp(1.1rem, 1vw + 0.5rem, 1.3rem);
            color: var(--wba18-text-dim);
            max-width: 600px;
            margin-bottom: 32px;
            word-break: break-word;
        }

        .wba18-badge {
            display: inline-block;
            padding: 6px 12px;
            background: rgba(59, 130, 246, 0.1);
            border: 1px solid var(--wba18-primary);
            color: var(--wba18-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 16px;
        }

        /* 更新日志时间轴 */
        .wba18-changelog-section {
            padding: 80px 0;
            position: relative;
        }

        .wba18-timeline {
            position: relative;
            padding-left: 40px;
        }

        .wba18-timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--wba18-primary), var(--wba18-border));
        }

        .wba18-log-item {
            position: relative;
            margin-bottom: 96px;
            min-width: 0;
        }

        .wba18-log-item::after {
            content: '';
            position: absolute;
            left: -45px;
            top: 10px;
            width: 12px;
            height: 12px;
            background: var(--wba18-primary);
            border-radius: 50%;
            box-shadow: 0 0 15px var(--wba18-primary);
        }

        .wba18-version-info {
            margin-bottom: 24px;
        }

        .wba18-version-tag {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-right: 16px;
        }

        .wba18-date-tag {
            color: var(--wba18-text-dim);
            font-family: monospace;
        }

        .wba18-card {
            background: var(--wba18-card-bg);
            border: 1px solid var(--wba18-border);
            border-radius: 16px;
            padding: 32px;
            transition: transform 0.3s ease, border-color 0.3s ease;
            word-break: break-word;
        }

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

        .wba18-feature-group {
            margin-bottom: 24px;
        }

        .wba18-group-title {
            display: flex;
            align-items: center;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--wba18-secondary);
        }

        .wba18-group-title span {
            margin-right: 8px;
        }

        .wba18-feature-list {
            list-style: none;
        }

        .wba18-feature-list li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            color: var(--wba18-text-dim);
        }

        .wba18-feature-list li strong {
            color: var(--wba18-text);
        }

        /* 动态内容区块 */
        .wba18-latest-news {
            background: rgba(255,255,255,0.02);
            padding: 80px 0;
            border-radius: 32px;
            margin: 40px 0;
        }

        .wba18-section-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 48px;
        }

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

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

        .wba18-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }

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

        .wba18-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .wba18-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .wba18-footer-col {
            min-width: 140px;
        }

        .wba18-footer-col h4 {
            margin-bottom: 20px;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--wba18-text-dim);
        }

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

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

        .wba18-footer-col a {
            text-decoration: none;
            color: var(--wba18-text-dim);
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .wba18-footer-col a:hover {
            color: #fff;
        }

        .wba18-copyright {
            margin-top: 60px;
            text-align: center;
            color: var(--wba18-text-dim);
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .wba18-nav-wrapper {
                height: auto;
                padding: 16px;
            }
            .wba18-nav-menu {
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .wba18-hero {
                padding-top: 120px;
            }
            .wba18-timeline {
                padding-left: 20px;
            }
            .wba18-log-item::after {
                left: -25px;
            }
        }