:root {
            --mpr9yq-primary: #A855F7;
            --mpr9yq-primary-dark: #7E22CE;
            --mpr9yq-bg: #0F172A;
            --mpr9yq-card-bg: #1E293B;
            --mpr9yq-text-main: #F1F5F9;
            --mpr9yq-text-muted: #94A3B8;
            --mpr9yq-border: rgba(168, 85, 247, 0.2);
            --mpr9yq-spacing-unit: 8px;
            --mpr9yq-max-width: 1400px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--mpr9yq-bg);
            color: var(--mpr9yq-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航系统 */
        .mpr9yq-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--mpr9yq-border);
        }

        .mpr9yq-nav-container {
            max-width: var(--mpr9yq-max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .mpr9yq-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .mpr9yq-logo img {
            height: 40px;
            width: auto;
        }

        .mpr9yq-nav-menu {
            display: flex;
            list-style: none;
            gap: 16px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .mpr9yq-nav-link {
            text-decoration: none;
            color: var(--mpr9yq-text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 12px;
            border-radius: 6px;
            white-space: nowrap;
        }

        .mpr9yq-nav-link:hover {
            color: var(--mpr9yq-primary);
            background: rgba(168, 85, 247, 0.1);
        }

        .mpr9yq-nav-link.active {
            color: white;
            background: var(--mpr9yq-primary);
        }

        /* Hero 区域 - 独特对角线分割布局 */
        .mpr9yq-hero {
            position: relative;
            padding: 160px 24px 100px;
            background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            overflow: hidden;
        }

        .mpr9yq-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .mpr9yq-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(to bottom right, #FFFFFF 30%, #A855F7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            max-width: 1000px;
        }

        .mpr9yq-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--mpr9yq-text-muted);
            max-width: 700px;
            margin-bottom: 48px;
        }

        /* 核心对比区 - Grid布局 */
        .mpr9yq-section {
            padding: 96px 24px;
            max-width: var(--mpr9yq-max-width);
            margin: 0 auto;
        }

        .mpr9yq-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            margin-bottom: 48px;
            text-align: center;
            position: relative;
        }

        .mpr9yq-section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--mpr9yq-primary);
            margin: 16px auto 0;
            border-radius: 2px;
        }

        .mpr9yq-vs-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .mpr9yq-vs-card {
            background: var(--mpr9yq-card-bg);
            border: 1px solid var(--mpr9yq-border);
            border-radius: 16px;
            padding: 40px;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .mpr9yq-vs-card:hover {
            transform: translateY(-8px);
            border-color: var(--mpr9yq-primary);
        }

        .mpr9yq-vs-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(168, 85, 247, 0.2);
            color: var(--mpr9yq-primary);
            font-size: 12px;
            font-weight: 700;
            border-radius: 20px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .mpr9yq-vs-name {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .mpr9yq-vs-desc {
            color: var(--mpr9yq-text-muted);
            font-size: 16px;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        /* 协议矩阵展示 - 独特风格 */
        .mpr9yq-matrix-box {
            background: #111827;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .mpr9yq-matrix-row {
            display: flex;
            flex-wrap: wrap;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .mpr9yq-matrix-row:last-child { border-bottom: none; }

        .mpr9yq-matrix-label {
            flex: 0 0 240px;
            padding: 32px;
            background: rgba(168, 85, 247, 0.05);
            font-weight: 700;
            color: var(--mpr9yq-primary);
            min-width: 0;
        }

        .mpr9yq-matrix-content {
            flex: 1;
            padding: 32px;
            min-width: 300px;
        }

        .mpr9yq-protocol-list {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .mpr9yq-protocol-item {
            padding: 4px 12px;
            background: #334155;
            border-radius: 4px;
            font-size: 13px;
            font-family: monospace;
        }

        /* 功能特性展示 */
        .mpr9yq-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 24px;
        }

        .mpr9yq-feature-item {
            padding: 32px;
            background: rgba(30, 41, 59, 0.5);
            border-radius: 12px;
            border-left: 4px solid var(--mpr9yq-primary);
            min-width: 0;
        }

        .mpr9yq-feature-item h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: white;
        }

        .mpr9yq-feature-item p {
            color: var(--mpr9yq-text-muted);
            font-size: 15px;
        }

        /* 页脚 */
        .mpr9yq-footer {
            background: #020617;
            padding: 80px 24px 40px;
            border-top: 1px solid var(--mpr9yq-border);
            margin-top: 64px;
        }

        .mpr9yq-footer-content {
            max-width: var(--mpr9yq-max-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 48px;
        }

        .mpr9yq-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .mpr9yq-brand-name {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: white;
        }

        .mpr9yq-footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }

        .mpr9yq-link-group h4 {
            margin-bottom: 24px;
            font-size: 16px;
            color: white;
        }

        .mpr9yq-link-group ul {
            list-style: none;
        }

        .mpr9yq-link-group li {
            margin-bottom: 12px;
        }

        .mpr9yq-link-group a {
            color: var(--mpr9yq-text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }

        .mpr9yq-link-group a:hover {
            color: var(--mpr9yq-primary);
        }

        .mpr9yq-copyright {
            margin-top: 64px;
            text-align: center;
            color: #475569;
            font-size: 14px;
            width: 100%;
        }

        /* 响应式断点 */
        @media (max-width: 768px) {
            .mpr9yq-nav-container { height: auto; padding: 16px; }
            .mpr9yq-nav-menu { justify-content: center; margin-top: 16px; }
            .mpr9yq-matrix-label { flex: 1 1 100%; }
            .mpr9yq-feature-grid { grid-template-columns: 1fr; }
            .mpr9yq-hero { padding-top: 180px; }
        }

        /* 结构化数据 JSON-LD */
        <script type="application/ld+json">
        {
          "@context": "https://schema.org",
          "@type": "SoftwareApplication",
          "name": "SecureCRT",
          "operatingSystem": "Windows, macOS, Linux",
          "applicationCategory": "Terminal Emulator",
          "offers": {
            "@type": "Offer",
            "price": "0.00",
            "priceCurrency": "USD"
          }
        }
        </script>