:root {
            --wba18-primary: #3D8BFF;
            --wba18-bg-dark: #0A0A0A;
            --wba18-bg-card: #161616;
            --wba18-text-main: #F5F7FA;
            --wba18-text-muted: #A0A0A0;
            --wba18-border: rgba(255, 255, 255, 0.1);
            --wba18-accent: #8A2BE2;
            --wba18-max-width: 1400px;
        }

        * {
            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-dark);
            color: var(--wba18-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局容器 */
        .wba18-container {
            max-width: var(--wba18-max-width);
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* 导航栏 */
        .wba18-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 10, 10, 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;
        }

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

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

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

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

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

        /* Hero 区 - 独特布局 */
        .wba18-hero {
            padding: 180px 0 100px;
            background: radial-gradient(circle at 50% -20%, rgba(61, 139, 255, 0.15), transparent);
            text-align: center;
            position: relative;
        }

        .wba18-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(61, 139, 255, 0.1);
            border: 1px solid var(--wba18-primary);
            border-radius: 100px;
            color: var(--wba18-primary);
            font-size: 14px;
            margin-bottom: 24px;
        }

        .wba18-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(to bottom, #FFFFFF, #A0A0A0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .wba18-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--wba18-text-muted);
            max-width: 800px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* 指令下载区 - 网格布局 */
        .wba18-section {
            padding: 80px 0;
            border-top: 1px solid var(--wba18-border);
        }

        .wba18-section-title {
            font-size: clamp(1.5rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 48px;
            text-align: center;
        }

        .wba18-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .wba18-card {
            background: var(--wba18-bg-card);
            border: 1px solid var(--wba18-border);
            border-radius: 16px;
            padding: 32px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .wba18-card:hover {
            transform: translateY(-8px);
            border-color: var(--wba18-primary);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }

        .wba18-card-tag {
            font-size: 12px;
            color: var(--wba18-accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .wba18-card-h3 {
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--wba18-text-main);
        }

        .wba18-card-p {
            font-size: 15px;
            color: var(--wba18-text-muted);
            margin-bottom: 24px;
            flex-grow: 1;
            word-break: break-word;
        }

        .wba18-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .wba18-btn-primary {
            background: var(--wba18-primary);
            color: white;
        }

        .wba18-btn-primary:hover {
            background: #2a76e6;
            box-shadow: 0 0 20px rgba(61, 139, 255, 0.4);
        }

        .wba18-code-preview {
            background: #000;
            padding: 16px;
            border-radius: 8px;
            font-family: "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
            font-size: 13px;
            color: #88eeff;
            margin-bottom: 20px;
            border-left: 3px solid var(--wba18-primary);
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* 动态内容区 */
        .wba18-news-section {
            background: rgba(61, 139, 255, 0.02);
        }

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

        .wba18-news-item {
            flex: 1;
            min-width: 300px;
            padding: 24px;
            background: #1a1a1a;
            border-radius: 12px;
            border: 1px solid var(--wba18-border);
        }

        /* 页脚 */
        .wba18-footer {
            padding: 80px 0 40px;
            background: #050505;
            border-top: 1px solid var(--wba18-border);
        }

        .wba18-footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .wba18-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .wba18-footer-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #FFF;
        }

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

        .wba18-footer-col h4 {
            margin-bottom: 24px;
            color: #FFF;
            font-size: 16px;
        }

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

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

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

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

        .wba18-copyright {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid var(--wba18-border);
            text-align: center;
            color: var(--wba18-text-muted);
            font-size: 13px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .wba18-menu {
                display: none; /* 简化演示：移动端通常会有汉堡菜单 */
            }
        }

        @media (max-width: 768px) {
            .wba18-nav {
                height: 64px;
            }
            .wba18-hero {
                padding: 120px 0 60px;
            }
            .wba18-grid {
                grid-template-columns: 1fr;
            }
            .wba18-container {
                padding: 0 20px;
            }
        }