:root {
            --r50ey1-primary: #4285F4;
            --r50ey1-success: #34A853;
            --r50ey1-accent: #FBBC04;
            --r50ey1-error: #EA4335;
            --r50ey1-text: #202124;
            --r50ey1-text-light: #5f6368;
            --r50ey1-bg: #ffffff;
            --r50ey1-bg-soft: #f8f9fa;
            --r50ey1-card-shadow: 0 4px 20px rgba(0,0,0,0.08);
            --r50ey1-radius: 16px;
            --r50ey1-container-width: 1300px;
        }

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

        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: var(--r50ey1-text);
            background-color: var(--r50ey1-bg);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .r50ey1-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .r50ey1-nav-container {
            max-width: var(--r50ey1-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            flex-wrap: wrap;
        }

        .r50ey1-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .r50ey1-logo img {
            height: 36px;
            width: auto;
        }

        .r50ey1-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .r50ey1-menu-item a {
            text-decoration: none;
            color: var(--r50ey1-text-light);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .r50ey1-menu-item a:hover {
            background-color: var(--r50ey1-bg-soft);
            color: var(--r50ey1-primary);
        }

        .r50ey1-menu-item a.r50ey1-active {
            color: var(--r50ey1-primary);
            background-color: rgba(66, 133, 244, 0.1);
        }

        /* Hero 区块 */
        .r50ey1-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at top right, rgba(66, 133, 244, 0.05), transparent),
                        radial-gradient(circle at bottom left, rgba(251, 188, 4, 0.05), transparent);
            text-align: center;
            position: relative;
        }

        .r50ey1-hero-content {
            max-width: 900px;
            margin: 0 auto;
            word-break: break-word;
        }

        .r50ey1-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--r50ey1-accent);
            color: #000;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .r50ey1-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--r50ey1-text);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .r50ey1-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--r50ey1-text-light);
            max-width: 700px;
            margin: 0 auto 40px;
            word-break: break-word;
        }

        /* Bento 布局扩展区 */
        .r50ey1-section {
            padding: 80px 24px;
            max-width: var(--r50ey1-container-width);
            margin: 0 auto;
        }

        .r50ey1-grid-bento {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .r50ey1-card {
            background: var(--r50ey1-bg-soft);
            border-radius: var(--r50ey1-radius);
            padding: 40px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .r50ey1-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--r50ey1-card-shadow);
            background: #fff;
        }

        .r50ey1-card-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
        }

        .r50ey1-card-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--r50ey1-text);
        }

        .r50ey1-card-list {
            list-style: none;
            margin-top: 16px;
        }

        .r50ey1-card-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--r50ey1-text-light);
            word-break: break-word;
        }

        .r50ey1-card-list li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--r50ey1-primary);
            font-weight: bold;
        }

        /* 极速芯技术区 */
        .r50ey1-tech-stack {
            background: var(--r50ey1-text);
            color: #fff;
            border-radius: 32px;
            padding: 64px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
        }

        .r50ey1-tech-info {
            flex: 1;
            min-width: 300px;
        }

        .r50ey1-tech-info h2 {
            font-size: 2.5rem;
            margin-bottom: 24px;
            color: var(--r50ey1-accent);
        }

        .r50ey1-tech-item {
            margin-bottom: 32px;
            border-left: 3px solid var(--r50ey1-primary);
            padding-left: 24px;
        }

        .r50ey1-tech-item h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .r50ey1-tech-item p {
            color: #bdc1c6;
            font-size: 0.95rem;
        }

        /* 未来愿景 - 动态区块 */
        .r50ey1-vision-container {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
        }

        .r50ey1-vision-step {
            flex: 1;
            min-width: 280px;
            background: #fff;
            border: 1px solid rgba(0,0,0,0.08);
            padding: 32px;
            border-radius: 20px;
        }

        .r50ey1-vision-period {
            font-weight: 800;
            color: var(--r50ey1-error);
            margin-bottom: 12px;
            display: block;
        }

        /* 页脚 */
        .r50ey1-footer {
            background: var(--r50ey1-bg-soft);
            padding: 80px 24px 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .r50ey1-footer-content {
            max-width: var(--r50ey1-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .r50ey1-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .r50ey1-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--r50ey1-text);
        }

        .r50ey1-footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }

        .r50ey1-footer-group h4 {
            margin-bottom: 20px;
            font-size: 1rem;
            color: var(--r50ey1-text);
        }

        .r50ey1-footer-group ul {
            list-style: none;
        }

        .r50ey1-footer-group ul li {
            margin-bottom: 12px;
        }

        .r50ey1-footer-group ul li a {
            text-decoration: none;
            color: var(--r50ey1-text-light);
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .r50ey1-footer-group ul li a:hover {
            color: var(--r50ey1-primary);
        }

        .r50ey1-footer-bottom {
            max-width: var(--r50ey1-container-width);
            margin: 64px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            color: var(--r50ey1-text-light);
            font-size: 0.85rem;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .r50ey1-nav-container {
                height: auto;
                padding: 16px;
            }
            .r50ey1-menu {
                margin-top: 16px;
                justify-content: center;
            }
            .r50ey1-hero {
                padding: 120px 20px 60px;
            }
            .r50ey1-tech-stack {
                padding: 32px;
            }
        }

        /* 按钮样式 */
        .r50ey1-btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .r50ey1-btn-primary {
            background-color: var(--r50ey1-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(66, 133, 244, 0.3);
        }

        .r50ey1-btn-primary:hover {
            background-color: #3367d6;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
        }