:root {
            --ucchpb-primary: #ff7139;
            --ucchpb-primary-hover: #e66027;
            --ucchpb-secondary: #0060df;
            --ucchpb-bg-dark: #0c0c0d;
            --ucchpb-bg-card: #1c1b22;
            --ucchpb-text-main: #fbfbfe;
            --ucchpb-text-muted: #cfcfd8;
            --ucchpb-accent-purple: #8000d7;
            --ucchpb-accent-pink: #ff0039;
            --ucchpb-spacing-base: 8px;
            --ucchpb-container-width: 1100px;
        }

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

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

        /* 导航栏设计 */
        .ucchpb-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(12, 12, 13, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .ucchpb-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .ucchpb-logo img {
            height: 36px;
            display: block;
        }

        .ucchpb-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .ucchpb-nav-item a {
            color: var(--ucchpb-text-muted);
            text-decoration: none;
            font-size: clamp(0.9rem, 1vw + 0.5rem, 1rem);
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .ucchpb-nav-item a:hover {
            color: var(--ucchpb-primary);
        }

        .ucchpb-nav-item.active a {
            color: var(--ucchpb-primary);
            position: relative;
        }

        .ucchpb-nav-item.active a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--ucchpb-primary);
        }

        /* Hero 区域：终端风格 */
        .ucchpb-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at 50% 30%, rgba(255, 113, 57, 0.15) 0%, transparent 70%);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            text-align: center;
        }

        .ucchpb-hero-content {
            max-width: 900px;
            min-width: 0;
        }

        .ucchpb-hero-badge {
            display: inline-block;
            background: rgba(255, 113, 57, 0.1);
            color: var(--ucchpb-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 113, 57, 0.3);
        }

        .ucchpb-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #fff 0%, #ff7139 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .ucchpb-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--ucchpb-text-muted);
            max-width: 700px;
            margin: 0 auto 48px;
            word-break: break-word;
        }

        /* 极客舱核心面板 */
        .ucchpb-main-section {
            max-width: var(--ucchpb-container-width);
            margin: 0 auto;
            padding: 64px 24px;
        }

        .ucchpb-terminal-window {
            background: var(--ucchpb-bg-card);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
        }

        .ucchpb-terminal-sidebar {
            flex: 0 0 280px;
            background: rgba(0, 0, 0, 0.2);
            border-right: 1px solid rgba(255, 255, 255, 0.05);
            padding: 32px;
            min-width: 0;
        }

        .ucchpb-sidebar-title {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--ucchpb-primary);
            margin-bottom: 24px;
        }

        .ucchpb-sidebar-list {
            list-style: none;
        }

        .ucchpb-sidebar-item {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--ucchpb-text-muted);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
        }

        .ucchpb-sidebar-item::before {
            content: '>';
            margin-right: 10px;
            color: var(--ucchpb-primary);
            font-family: monospace;
        }

        .ucchpb-terminal-body {
            flex: 1 1 500px;
            padding: 48px;
            min-width: 0;
        }

        /* 隐私防御武器库网格 */
        .ucchpb-grid-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .ucchpb-feature-card {
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            transition: transform 0.3s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
            min-width: 0;
        }

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

        .ucchpb-card-icon {
            width: 48px;
            height: 48px;
            background: var(--ucchpb-primary);
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: white;
        }

        .ucchpb-feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .ucchpb-feature-card p {
            color: var(--ucchpb-text-muted);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .ucchpb-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ucchpb-tag {
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            color: var(--ucchpb-text-muted);
        }

        /* 动态内容区块 */
        .ucchpb-dynamic-section {
            background: #121214;
            padding: 96px 24px;
            text-align: center;
        }

        /* 页脚 */
        .ucchpb-footer {
            padding: 80px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            background: var(--ucchpb-bg-dark);
        }

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

        .ucchpb-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .ucchpb-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .ucchpb-footer-links {
            flex: 2 1 500px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            min-width: 0;
        }

        .ucchpb-link-group {
            flex: 1 1 150px;
            min-width: 0;
        }

        .ucchpb-link-group h4 {
            margin-bottom: 24px;
            font-size: 0.9rem;
            text-transform: uppercase;
            color: var(--ucchpb-text-muted);
        }

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

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

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

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

        .ucchpb-copyright {
            max-width: var(--ucchpb-container-width);
            margin: 48px auto 0;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            color: #666;
            font-size: 0.85rem;
        }

        /* 按钮样式 */
        .ucchpb-btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .ucchpb-btn-primary {
            background: var(--ucchpb-primary);
            color: white;
        }

        .ucchpb-btn-primary:hover {
            background: var(--ucchpb-primary-hover);
            transform: scale(1.02);
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .ucchpb-nav-menu {
                display: none; /* 简化演示，实际应有汉堡菜单 */
            }
            .ucchpb-terminal-sidebar {
                flex: 1 1 100%;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .ucchpb-hero {
                padding-top: 120px;
            }
        }