:root {
            --rg222-primary: #0052D4;
            --rg222-secondary: #4361ee;
            --rg222-accent: #00f2fe;
            --rg222-bg: #f8fafc;
            --rg222-text: #1e293b;
            --rg222-text-light: #64748b;
            --rg222-white: #ffffff;
            --rg222-aurora-gradient: linear-gradient(135deg, #0052D4 0%, #4361ee 50%, #6fb1fc 100%);
            --rg222-glass: rgba(255, 255, 255, 0.8);
            --rg222-radius: 16px;
            --rg222-spacing: 8px;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--rg222-bg);
            color: var(--rg222-text);
            line-height: 1.8;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏 */
        .rg222-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--rg222-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .rg222-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: calc(var(--rg222-spacing) * 2) 5vw;
        }

        .rg222-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .rg222-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .rg222-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--rg222-spacing) * 3);
        }

        .rg222-menu-item a {
            text-decoration: none;
            color: var(--rg222-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

        .rg222-menu-item a:hover,
        .rg222-menu-item a.active {
            color: var(--rg222-primary);
        }

        .rg222-menu-item a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--rg222-aurora-gradient);
            border-radius: 2px;
        }

        /* Hero 区域 - 独特居中搜索风格 */
        .rg222-hero {
            padding: 160px 5vw 80px;
            background: radial-gradient(circle at 90% 10%, rgba(67, 97, 238, 0.1) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(0, 242, 254, 0.1) 0%, transparent 40%);
            text-align: center;
            max-width: 1400px;
            margin: 0 auto;
        }

        .rg222-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 4rem);
            font-weight: 800;
            margin-bottom: 24px;
            background: var(--rg222-aurora-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .rg222-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--rg222-text-light);
            max-width: 800px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        .rg222-search-box {
            max-width: 600px;
            margin: 0 auto;
            background: var(--rg222-white);
            padding: 8px;
            border-radius: 50px;
            display: flex;
            flex-wrap: wrap;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(0, 0, 0, 0.05);
        }

        .rg222-search-input {
            flex: 1;
            min-width: 200px;
            border: none;
            padding: 12px 24px;
            outline: none;
            font-size: 1rem;
            border-radius: 50px;
        }

        .rg222-search-btn {
            background: var(--rg222-aurora-gradient);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            transition: transform 0.3s ease;
        }

        .rg222-search-btn:hover {
            transform: scale(1.05);
        }

        /* 内容区块 */
        .rg222-section {
            padding: 64px 5vw;
            max-width: 1400px;
            margin: 0 auto;
        }

        .rg222-section-header {
            margin-bottom: 48px;
            text-align: left;
        }

        .rg222-section-tag {
            display: inline-block;
            background: rgba(0, 82, 212, 0.1);
            color: var(--rg222-primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .rg222-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .rg222-card {
            background: var(--rg222-white);
            padding: 40px;
            border-radius: var(--rg222-radius);
            border: 1px solid rgba(0, 0, 0, 0.03);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

        .rg222-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }

        .rg222-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--rg222-aurora-gradient);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .rg222-card:hover::before {
            opacity: 1;
        }

        .rg222-card-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .rg222-feature-list {
            list-style: none;
        }

        .rg222-feature-item {
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--rg222-text-light);
            display: flex;
            align-items: flex-start;
        }

        .rg222-feature-item::before {
            content: '✦';
            color: var(--rg222-primary);
            margin-right: 10px;
        }

        /* 快捷键表格展示区 - 核心功能 */
        .rg222-shortcut-container {
            background: var(--rg222-white);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            margin-top: 48px;
        }

        .rg222-shortcut-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
            border-bottom: 1px solid #eee;
            padding-bottom: 16px;
        }

        .rg222-tab-btn {
            padding: 10px 24px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid #eee;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }

        .rg222-tab-btn.active {
            background: var(--rg222-primary);
            color: white;
            border-color: var(--rg222-primary);
        }

        .rg222-table-wrapper {
            overflow-x: auto;
            width: 100%;
        }

        .rg222-shortcut-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .rg222-shortcut-table th {
            padding: 16px;
            border-bottom: 2px solid #f1f5f9;
            color: var(--rg222-text-light);
            font-weight: 600;
        }

        .rg222-shortcut-table td {
            padding: 16px;
            border-bottom: 1px solid #f1f5f9;
        }

        .rg222-kbd {
            background: #f1f5f9;
            border-radius: 4px;
            padding: 2px 8px;
            font-family: monospace;
            border-bottom: 2px solid #cbd5e1;
            font-weight: 700;
            color: var(--rg222-primary);
        }

        /* 动态内容区块 */
        .rg222-news-section {
            background: #f1f5f9;
            border-radius: 40px;
            margin: 64px 5vw;
        }

        /* 页脚 */
        .rg222-footer {
            background: var(--rg222-text);
            color: var(--rg222-white);
            padding: 80px 5vw 40px;
        }

        .rg222-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
        }

        .rg222-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: var(--rg222-aurora-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .rg222-footer-links h3 {
            font-size: 1rem;
            margin-bottom: 24px;
            opacity: 0.8;
        }

        .rg222-footer-links ul {
            list-style: none;
        }

        .rg222-footer-links li {
            margin-bottom: 12px;
        }

        .rg222-footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.3s;
        }

        .rg222-footer-links a:hover {
            color: var(--rg222-white);
        }

        .rg222-copyright {
            margin-top: 80px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .rg222-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .rg222-menu {
                justify-content: center;
                gap: 12px;
            }
            .rg222-hero {
                padding-top: 200px;
            }
            .rg222-shortcut-container {
                padding: 24px;
            }
            .rg222-grid {
                grid-template-columns: 1fr;
            }
        }