:root {
            --wba18-primary: #3d3d3d;
            --wba18-accent: #00e5ff;
            --wba18-bg: #ffffff;
            --wba18-dark-bg: #0a0a0a;
            --wba18-text: #1a1a1a;
            --wba18-text-muted: #666666;
            --wba18-border: rgba(0, 0, 0, 0.08);
            --wba18-glass: rgba(255, 255, 255, 0.8);
            --wba18-spacing-unit: 8px;
            --wba18-container-width: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            color: var(--wba18-text);
            background-color: var(--wba18-bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

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

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

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

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

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

        .wba18-nav-link {
            text-decoration: none;
            color: var(--wba18-text);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

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

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

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

        /* Hero 区域 - 独特对角线分割设计 */
        .wba18-hero {
            padding-top: 160px;
            padding-bottom: 120px;
            background: radial-gradient(circle at 90% 10%, rgba(0, 229, 255, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(100, 100, 255, 0.05) 0%, transparent 40%);
            text-align: center;
            position: relative;
        }

        .wba18-hero-inner {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
            min-width: 0;
        }

        .wba18-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 0, 0, 0.04);
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            color: var(--wba18-text-muted);
            letter-spacing: 1px;
        }

        .wba18-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 32px;
            letter-spacing: -0.02em;
            color: var(--wba18-dark-bg);
        }

        .wba18-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--wba18-text-muted);
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }

        .wba18-cta-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            min-width: 0;
        }

        .wba18-btn {
            padding: 16px 36px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-size: 16px;
            cursor: pointer;
            border: none;
        }

        .wba18-btn-primary {
            background: var(--wba18-dark-bg);
            color: #fff;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .wba18-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
            background: #222;
        }

        .wba18-btn-secondary {
            background: #fff;
            color: var(--wba18-dark-bg);
            border: 1px solid var(--wba18-border);
        }

        .wba18-btn-secondary:hover {
            background: rgba(0, 0, 0, 0.02);
            border-color: #000;
        }

        /* 核心特性模块 - 网格卡片布局 */
        .wba18-section {
            padding: 96px 24px;
            max-width: var(--wba18-container-width);
            margin: 0 auto;
        }

        .wba18-section-header {
            margin-bottom: 64px;
            max-width: 600px;
            min-width: 0;
        }

        .wba18-section-title {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .wba18-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            flex-wrap: wrap;
        }

        .wba18-feature-card {
            background: #fff;
            padding: 48px;
            border-radius: 16px;
            border: 1px solid var(--wba18-border);
            transition: all 0.4s ease;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .wba18-feature-card:hover {
            border-color: var(--wba18-dark-bg);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .wba18-card-icon {
            width: 48px;
            height: 48px;
            background: #f4f4f4;
            border-radius: 12px;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 20px;
        }

        .wba18-card-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .wba18-card-desc {
            font-size: 15px;
            color: var(--wba18-text-muted);
            line-height: 1.8;
        }

        /* 左右图文混排模块 */
        .wba18-split-section {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            padding: 96px 0;
            min-width: 0;
        }

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

        .wba18-split-visual {
            flex: 1.2;
            min-width: 320px;
            background: #f8f9fa;
            border-radius: 24px;
            padding: 40px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--wba18-border);
        }

        .wba18-code-mock {
            background: #1e1e1e;
            border-radius: 12px;
            padding: 24px;
            font-family: "Fira Code", monospace;
            color: #d4d4d4;
            font-size: 14px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.2);
        }

        .wba18-code-line {
            display: block;
            margin-bottom: 4px;
        }

        .wba18-highlight {
            color: var(--wba18-accent);
        }

        /* 对比区域 */
        .wba18-vs-box {
            background: var(--wba18-dark-bg);
            color: #fff;
            padding: 80px 48px;
            border-radius: 24px;
            margin-top: 64px;
        }

        .wba18-vs-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-top: 48px;
        }

        .wba18-vs-item {
            flex: 1;
            min-width: 260px;
        }

        .wba18-vs-header {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

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

        .wba18-vs-list li {
            margin-bottom: 16px;
            font-size: 14px;
            color: #999;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .wba18-vs-list li::before {
            content: "✓";
            color: var(--wba18-accent);
        }

        /* 页脚设计 */
        .wba18-footer {
            background: #fafafa;
            padding: 80px 24px 40px;
            border-top: 1px solid var(--wba18-border);
        }

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

        .wba18-footer-brand-area {
            flex: 1.5;
            min-width: 240px;
        }

        .wba18-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--wba18-dark-bg);
        }

        .wba18-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            min-width: 0;
        }

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

        .wba18-link-title {
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .wba18-footer-nav {
            list-style: none;
        }

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

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

        .wba18-footer-nav a:hover {
            color: var(--wba18-dark-bg);
        }

        .wba18-copyright {
            margin-top: 64px;
            padding-top: 24px;
            border-top: 1px solid var(--wba18-border);
            text-align: center;
            font-size: 13px;
            color: var(--wba18-text-muted);
            width: 100%;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .wba18-nav-container {
                height: auto;
                padding: 16px 0;
            }
            .wba18-nav-menu {
                display: none; /* 简化演示：移动端隐藏菜单，实际应为汉堡菜单 */
            }
            .wba18-hero {
                padding-top: 120px;
            }
            .wba18-split-section {
                flex-direction: column;
            }
        }