:root {
            --vm2i-primary: #0078d4;
            --vm2i-accent: #00f2ff;
            --vm2i-bg: #050a14;
            --vm2i-card-bg: #111827;
            --vm2i-text-main: #e5e7eb;
            --vm2i-text-dim: #9ca3af;
            --vm2i-border: rgba(255, 255, 255, 0.1);
            --vm2i-font-size-base: clamp(1rem, 0.5vw + 0.8rem, 1.2rem);
            --vm2i-font-size-hero: clamp(2rem, 5vw + 1rem, 4rem);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--vm2i-bg);
            color: var(--vm2i-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏 */
        .vm2i-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(5, 10, 20, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--vm2i-border);
        }

        .vm2i-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
        }

        .vm2i-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .vm2i-logo img {
            height: 32px;
            width: auto;
        }

        .vm2i-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .vm2i-nav-item a {
            color: var(--vm2i-text-dim);
            text-decoration: none;
            padding: 8px 16px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            display: block;
            border-radius: 4px;
        }

        .vm2i-nav-item a:hover {
            color: var(--vm2i-accent);
            background: rgba(0, 242, 255, 0.05);
        }

        .vm2i-nav-item.vm2i-active a {
            color: #fff;
            background: var(--vm2i-primary);
        }

        /* Hero 区 - 对角线分割设计 */
        .vm2i-hero {
            position: relative;
            padding: 160px 24px 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 120, 212, 0.15), transparent);
            overflow: hidden;
        }

        .vm2i-hero-content {
            max-width: 1100px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .vm2i-hero-title {
            font-size: var(--vm2i-font-size-hero);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            background: linear-gradient(to right, #fff, var(--vm2i-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .vm2i-hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            color: var(--vm2i-text-dim);
            max-width: 800px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* 搜索框风格 */
        .vm2i-search-wrapper {
            max-width: 600px;
            margin: 0 auto;
            position: relative;
        }

        .vm2i-search-input {
            width: 100%;
            padding: 20px 32px;
            background: var(--vm2i-card-bg);
            border: 1px solid var(--vm2i-border);
            border-radius: 50px;
            color: #fff;
            font-size: 1.1rem;
            outline: none;
            transition: border-color 0.3s;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }

        .vm2i-search-input:focus {
            border-color: var(--vm2i-accent);
        }

        /* 快捷键网格布局 */
        .vm2i-main-section {
            padding: 64px 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .vm2i-section-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            flex-wrap: wrap;
        }

        .vm2i-shortcut-card {
            background: var(--vm2i-card-bg);
            border: 1px solid var(--vm2i-border);
            border-radius: 16px;
            padding: 32px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            min-width: 0;
            word-break: break-word;
        }

        .vm2i-shortcut-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            border-color: rgba(0, 242, 255, 0.3);
        }

        .vm2i-card-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--vm2i-accent);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .vm2i-shortcut-list {
            list-style: none;
        }

        .vm2i-shortcut-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .vm2i-shortcut-item:last-child {
            border-bottom: none;
        }

        .vm2i-key-label {
            color: var(--vm2i-text-dim);
            font-size: 0.95rem;
        }

        .vm2i-key-code {
            display: flex;
            gap: 4px;
        }

        kbd {
            background: #2d3748;
            border: 1px solid #4a5568;
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 0.85rem;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
            color: #fff;
            box-shadow: 0 2px 0 #1a202c;
        }

        /* 装饰性区块 */
        .vm2i-pro-tips {
            background: linear-gradient(135deg, #001f3f, #000);
            border-radius: 24px;
            padding: 48px;
            margin: 64px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .vm2i-tip-content {
            flex: 1;
            min-width: 300px;
        }

        .vm2i-tip-visual {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--vm2i-border);
            padding: 24px;
            border-radius: 12px;
            font-family: monospace;
            font-size: 0.9rem;
            color: #10b981;
        }

        /* 页脚 */
        .vm2i-footer {
            border-top: 1px solid var(--vm2i-border);
            padding: 64px 24px;
            background: #030712;
        }

        .vm2i-footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .vm2i-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .vm2i-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }

        .vm2i-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .vm2i-footer-group {
            min-width: 120px;
        }

        .vm2i-footer-group h4 {
            color: #fff;
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .vm2i-footer-group ul {
            list-style: none;
        }

        .vm2i-footer-group li {
            margin-bottom: 12px;
        }

        .vm2i-footer-group a {
            color: var(--vm2i-text-dim);
            text-decoration: none;
            transition: color 0.3s;
        }

        .vm2i-footer-group a:hover {
            color: var(--vm2i-accent);
        }

        .vm2i-copyright {
            width: 100%;
            margin-top: 64px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            color: var(--vm2i-text-dim);
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .vm2i-section-grid {
                grid-template-columns: 1fr;
            }
            .vm2i-nav-menu {
                display: none; /* 简化演示，实际应有汉堡菜单 */
            }
            .vm2i-hero {
                padding: 120px 20px 60px;
            }
        }