:root {
            --mpr9yq-primary: #A855F7;
            --mpr9yq-primary-dark: #7E22CE;
            --mpr9yq-bg-light: #FBFBFE;
            --mpr9yq-text-main: #1F2937;
            --mpr9yq-text-muted: #6B7280;
            --mpr9yq-white: #FFFFFF;
            --mpr9yq-gray-100: #F3F4F6;
            --mpr9yq-accent-blue: #3B82F6;
            --mpr9yq-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
            --mpr9yq-radius: 16px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--mpr9yq-text-main);
            background-color: var(--mpr9yq-bg-light);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .mpr9yq-container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .mpr9yq-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 16px 0;
        }

        .mpr9yq-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .mpr9yq-logo {
            min-width: 0;
            flex-shrink: 0;
        }

        .mpr9yq-logo img {
            height: 40px;
            display: block;
        }

        .mpr9yq-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .mpr9yq-menu-link {
            text-decoration: none;
            color: var(--mpr9yq-text-main);
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .mpr9yq-menu-link:hover {
            background: var(--mpr9yq-gray-100);
            color: var(--mpr9yq-primary);
        }

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

        /* Hero 区块 */
        .mpr9yq-hero {
            padding: 96px 0 64px;
            background: radial-gradient(circle at top right, rgba(168, 85, 247, 0.08), transparent);
            text-align: center;
        }

        .mpr9yq-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #111827 0%, #A855F7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .mpr9yq-hero-subtitle {
            font-size: clamp(1rem, 1vw + 0.8rem, 1.25rem);
            color: var(--mpr9yq-text-muted);
            max-width: 800px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* 对比核心视觉 */
        .mpr9yq-comparison-viz {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            margin-top: 48px;
        }

        .mpr9yq-viz-card {
            flex: 1;
            min-width: 300px;
            background: var(--mpr9yq-white);
            padding: 40px;
            border-radius: var(--mpr9yq-radius);
            box-shadow: var(--mpr9yq-shadow);
            border: 1px solid rgba(0,0,0,0.03);
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .mpr9yq-viz-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
        }

        .mpr9yq-viz-card.securecrt::before { background: var(--mpr9yq-primary); }
        .mpr9yq-viz-card.putty::before { background: #9CA3AF; }

        .mpr9yq-viz-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .mpr9yq-viz-card.securecrt .mpr9yq-viz-tag { background: rgba(168, 85, 247, 0.1); color: var(--mpr9yq-primary); }
        .mpr9yq-viz-card.putty .mpr9yq-viz-tag { background: #F3F4F6; color: #4B5563; }

        .mpr9yq-viz-name {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .mpr9yq-viz-desc {
            font-size: 15px;
            color: var(--mpr9yq-text-muted);
            margin-bottom: 24px;
        }

        /* 特性列表样式 */
        .mpr9yq-feature-points {
            list-style: none;
        }

        .mpr9yq-feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            font-size: 15px;
        }

        .mpr9yq-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--mpr9yq-primary);
        }

        /* 深度对比表格区域 */
        .mpr9yq-section {
            padding: 80px 0;
        }

        .mpr9yq-section-title {
            text-align: center;
            font-size: 32px;
            margin-bottom: 48px;
            font-weight: 700;
        }

        .mpr9yq-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .mpr9yq-matrix-item {
            background: var(--mpr9yq-white);
            padding: 32px;
            border-radius: var(--mpr9yq-radius);
            border: 1px solid rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
        }

        .mpr9yq-matrix-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--mpr9yq-shadow);
        }

        .mpr9yq-matrix-header {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--mpr9yq-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mpr9yq-matrix-content {
            font-size: 15px;
            color: var(--mpr9yq-text-muted);
        }

        /* 协议矩阵展示 */
        .mpr9yq-protocol-strip {
            background: #111827;
            color: var(--mpr9yq-white);
            padding: 64px 0;
            border-radius: 24px;
            margin: 40px 0;
        }

        .mpr9yq-strip-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .mpr9yq-strip-box {
            flex: 1;
            min-width: 280px;
        }

        .mpr9yq-strip-label {
            color: var(--mpr9yq-primary);
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            display: block;
        }

        .mpr9yq-strip-val {
            font-size: 18px;
            margin-bottom: 12px;
        }

        /* 底部 */
        .mpr9yq-footer {
            background: #F9FAFB;
            padding: 64px 0;
            border-top: 1px solid #E5E7EB;
            margin-top: 80px;
        }

        .mpr9yq-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }

        .mpr9yq-footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: var(--mpr9yq-text-main);
        }

        .mpr9yq-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .mpr9yq-footer-col h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .mpr9yq-footer-col a {
            display: block;
            text-decoration: none;
            color: var(--mpr9yq-text-muted);
            margin-bottom: 10px;
            font-size: 14px;
        }

        @media (max-width: 992px) {
            .mpr9yq-menu {
                display: none; /* 简化演示，移动端可隐藏或改为汉堡菜单 */
            }
        }

        @media (max-width: 768px) {
            .mpr9yq-viz-card {
                min-width: 100%;
            }
            .mpr9yq-hero {
                padding: 60px 0;
            }
        }