:root {
            --eu06b-primary: #007aff;
            --eu06b-primary-dark: #0056b3;
            --eu06b-accent: #5ac8fa;
            --eu06b-bg: #ffffff;
            --eu06b-text: #1d1d1f;
            --eu06b-text-secondary: #86868b;
            --eu06b-surface: #f5f5f7;
            --eu06b-glass: rgba(255, 255, 255, 0.7);
            --eu06b-spacing: 8px;
            --eu06b-max-width: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--eu06b-text);
            background-color: var(--eu06b-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局规范 */
        .eu06b-container {
            max-width: var(--eu06b-max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .eu06b-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .eu06b-flex-item {
            min-width: 0;
        }

        .eu06b-section {
            padding: 96px 0;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* 导航栏 */
        .eu06b-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--eu06b-glass);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .eu06b-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 64px;
            flex-wrap: wrap;
        }

        .eu06b-logo {
            display: flex;
            align-items: center;
        }

        .eu06b-logo img {
            height: 32px;
            width: auto;
        }

        .eu06b-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
        }

        .eu06b-menu a {
            text-decoration: none;
            color: var(--eu06b-text);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

        .eu06b-menu a:hover {
            color: var(--eu06b-primary);
        }

        .eu06b-menu a.eu06b-active {
            color: var(--eu06b-primary);
            position: relative;
        }

        .eu06b-menu a.eu06b-active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--eu06b-primary);
        }

        /* Hero区 - 独特居中卡片布局 */
        .eu06b-hero {
            padding-top: 160px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 50% 0%, #e3f2fd 0%, #ffffff 70%);
            text-align: center;
        }

        .eu06b-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 122, 255, 0.1);
            color: var(--eu06b-primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .eu06b-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .eu06b-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--eu06b-text-secondary);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        .eu06b-main-cta {
            display: inline-flex;
            align-items: center;
            padding: 16px 48px;
            background: var(--eu06b-primary);
            color: white;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 10px 20px rgba(0, 122, 255, 0.2);
        }

        .eu06b-main-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 122, 255, 0.3);
            background: var(--eu06b-primary-dark);
        }

        /* 协议执行矩阵 - Grid布局 */
        .eu06b-matrix-section {
            background: var(--eu06b-surface);
            border-radius: 48px;
            margin: 40px 24px;
        }

        .eu06b-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            padding: 64px;
        }

        .eu06b-matrix-card {
            background: var(--eu06b-bg);
            padding: 40px;
            border-radius: 24px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .eu06b-matrix-card:hover {
            border-color: var(--eu06b-primary);
            transform: scale(1.02);
        }

        .eu06b-matrix-tag {
            font-size: 12px;
            text-transform: uppercase;
            color: var(--eu06b-text-secondary);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .eu06b-matrix-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .eu06b-matrix-capability {
            color: var(--eu06b-primary);
            font-weight: 600;
            margin-bottom: 16px;
            font-size: 14px;
        }

        .eu06b-matrix-desc {
            font-size: 15px;
            color: var(--eu06b-text-secondary);
        }

        /* 用户画像 - Flex横向滚动式 */
        .eu06b-persona-section {
            padding: 80px 0;
        }

        .eu06b-persona-header {
            text-align: left;
            margin-bottom: 48px;
        }

        .eu06b-persona-flex {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .eu06b-persona-card {
            flex: 1;
            min-width: 300px;
            background: #fff;
            border: 1px solid #e5e5e7;
            padding: 32px;
            border-radius: 20px;
            transition: background 0.3s;
        }

        .eu06b-persona-card:hover {
            background: #fafafa;
        }

        .eu06b-persona-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .eu06b-persona-usecase {
            font-size: 14px;
            color: var(--eu06b-text-secondary);
            margin-bottom: 24px;
            height: 60px;
        }

        .eu06b-persona-feature {
            padding-top: 16px;
            border-top: 1px solid #eee;
            font-size: 13px;
            font-weight: 600;
        }

        .eu06b-persona-feature span {
            color: var(--eu06b-primary);
            display: block;
            margin-top: 4px;
        }

        /* 动态内容标记区块 */
        .eu06b-news-section {
            border-top: 1px solid #eee;
        }

        /* 页脚区 */
        .eu06b-footer {
            background: #000;
            color: #fff;
            padding: 64px 0 32px;
        }

        .eu06b-footer-content {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 48px;
        }

        .eu06b-footer-brand {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .eu06b-footer-links {
            display: flex;
            gap: 48px;
        }

        .eu06b-footer-column h4 {
            margin-bottom: 20px;
            font-size: 14px;
            color: #86868b;
        }

        .eu06b-footer-column ul {
            list-style: none;
        }

        .eu06b-footer-column li {
            margin-bottom: 12px;
        }

        .eu06b-footer-column a {
            color: #fff;
            text-decoration: none;
            font-size: 14px;
            transition: opacity 0.3s;
        }

        .eu06b-footer-column a:hover {
            opacity: 0.7;
        }

        .eu06b-copyright {
            text-align: center;
            font-size: 12px;
            color: #86868b;
            padding-top: 32px;
            border-top: 1px solid #333;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .eu06b-menu {
                display: none; /* 简化演示：移动端隐藏菜单 */
            }
            .eu06b-matrix-grid {
                padding: 32px 24px;
            }
            .eu06b-footer-content {
                flex-direction: column;
                gap: 40px;
            }
            .eu06b-matrix-card {
                padding: 24px;
            }
            .eu06b-hero-title {
                font-size: 32px;
            }
        }