:root {
            --o6ip-primary: #bf0000;
            --o6ip-primary-dark: #8e0000;
            --o6ip-secondary: #2c3e50;
            --o6ip-bg: #fdfdfd;
            --o6ip-text: #333333;
            --o6ip-gray: #f4f4f4;
            --o6ip-accent: #e74c3c;
            --o6ip-border: #e0e0e0;
            --o6ip-sidebar-width: 280px;
            --o6ip-max-width: 1400px;
        }

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

        body {
            font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--o6ip-text);
            background-color: var(--o6ip-bg);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏样式 */
        .o6ip-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--o6ip-border);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
        }

        .o6ip-nav-container {
            max-width: var(--o6ip-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            min-height: 72px;
        }

        .o6ip-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .o6ip-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .o6ip-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .o6ip-nav-menu li a {
            text-decoration: none;
            color: var(--o6ip-secondary);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 4px;
            transition: all 0.3s ease;
            font-size: 15px;
        }

        .o6ip-nav-menu li a:hover {
            color: var(--o6ip-primary);
            background: rgba(191, 0, 0, 0.05);
        }

        .o6ip-nav-menu li a.o6ip-active {
            color: #fff;
            background: var(--o6ip-primary);
        }

        /* 核心布局 */
        .o6ip-main-wrapper {
            max-width: var(--o6ip-max-width);
            margin: 120px auto 64px;
            display: flex;
            flex-wrap: wrap;
            padding: 0 24px;
            gap: 48px;
        }

        /* 非对称侧边栏 */
        .o6ip-sidebar {
            flex: 0 0 var(--o6ip-sidebar-width);
            min-width: 0;
            position: sticky;
            top: 120px;
            height: fit-content;
        }

        .o6ip-sidebar-card {
            background: #fff;
            border-left: 4px solid var(--o6ip-primary);
            padding: 24px;
            box-shadow: 10px 10px 30px rgba(0,0,0,0.03);
            margin-bottom: 32px;
        }

        .o6ip-sidebar-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--o6ip-secondary);
        }

        .o6ip-version-nav {
            list-style: none;
        }

        .o6ip-version-nav li {
            margin-bottom: 12px;
        }

        .o6ip-version-nav a {
            color: #666;
            text-decoration: none;
            display: block;
            padding: 4px 0;
            transition: color 0.3s;
        }

        .o6ip-version-nav a:hover {
            color: var(--o6ip-primary);
        }

        /* 主内容区 */
        .o6ip-content {
            flex: 1;
            min-width: 0;
        }

        .o6ip-hero-section {
            margin-bottom: 64px;
        }

        .o6ip-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--o6ip-secondary);
            margin-bottom: 24px;
            word-break: break-word;
        }

        .o6ip-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: #666;
            max-width: 800px;
            margin-bottom: 32px;
        }

        /* 非对称网格布局 */
        .o6ip-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-bottom: 64px;
        }

        .o6ip-version-card {
            background: #fff;
            border: 1px solid var(--o6ip-border);
            padding: 32px;
            border-radius: 0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .o6ip-version-card::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 60px;
            height: 60px;
            background: var(--o6ip-gray);
            clip-path: polygon(100% 0, 0 0, 100% 100%);
        }

        .o6ip-version-card:hover {
            transform: translateY(-8px);
            box-shadow: 20px 20px 60px rgba(0,0,0,0.08);
            border-color: var(--o6ip-primary);
        }

        .o6ip-card-tag {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--o6ip-primary);
            font-weight: 700;
            margin-bottom: 16px;
            display: block;
        }

        .o6ip-card-version {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .o6ip-card-date {
            font-size: 14px;
            color: #888;
            margin-bottom: 24px;
        }

        .o6ip-download-btn {
            display: inline-flex;
            align-items: center;
            background: var(--o6ip-secondary);
            color: #fff;
            padding: 12px 24px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.3s;
        }

        .o6ip-download-btn:hover {
            background: var(--o6ip-primary);
        }

        /* 工业特性区块 */
        .o6ip-features-section {
            background: var(--o6ip-secondary);
            color: #fff;
            padding: 80px 24px;
            margin: 0 -24px;
        }

        .o6ip-features-inner {
            max-width: var(--o6ip-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .o6ip-feature-item {
            flex: 1;
            min-width: 280px;
            border-left: 1px solid rgba(255,255,255,0.2);
            padding-left: 24px;
        }

        .o6ip-feature-name {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--o6ip-accent);
        }

        .o6ip-feature-desc {
            font-size: 0.95rem;
            opacity: 0.8;
            margin-bottom: 12px;
        }

        .o6ip-feature-impact {
            font-size: 0.85rem;
            color: #fff;
            background: rgba(255,255,255,0.1);
            padding: 4px 12px;
            display: inline-block;
        }

        /* 场景展示 */
        .o6ip-scenario-section {
            padding: 96px 0;
        }

        .o6ip-scenario-card {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
            margin-bottom: 64px;
        }

        .o6ip-scenario-card:nth-child(even) {
            flex-direction: row-reverse;
        }

        .o6ip-scenario-content {
            flex: 1;
            min-width: 300px;
        }

        .o6ip-scenario-title {
            font-size: 2rem;
            margin-bottom: 24px;
            position: relative;
        }

        .o6ip-scenario-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 60px;
            height: 4px;
            background: var(--o6ip-primary);
        }

        .o6ip-scenario-text {
            font-size: 1.1rem;
            color: #555;
            line-height: 1.8;
        }

        /* 动态数据流背景模拟 (CSS) */
        .o6ip-data-lines {
            position: fixed;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background: linear-gradient(90deg, transparent 0%, rgba(191,0,0,0.02) 50%, transparent 100%);
            z-index: -1;
            pointer-events: none;
        }

        /* 页脚 */
        .o6ip-footer {
            background: #1a1a1a;
            color: #999;
            padding: 64px 24px;
            border-top: 4px solid var(--o6ip-primary);
        }

        .o6ip-footer-container {
            max-width: var(--o6ip-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .o6ip-footer-brand {
            flex: 1;
            min-width: 250px;
        }

        .o6ip-footer-brand-name {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .o6ip-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .o6ip-footer-group h4 {
            color: #fff;
            margin-bottom: 24px;
        }

        .o6ip-footer-group ul {
            list-style: none;
        }

        .o6ip-footer-group ul li {
            margin-bottom: 12px;
        }

        .o6ip-footer-group ul li a {
            color: #999;
            text-decoration: none;
            transition: color 0.3s;
        }

        .o6ip-footer-group ul li a:hover {
            color: var(--o6ip-primary);
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .o6ip-sidebar {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .o6ip-nav-menu {
                display: none; /* 简化移动端，实际项目中应有汉堡菜单 */
            }
            .o6ip-hero-title {
                font-size: 2.2rem;
            }
            .o6ip-main-wrapper {
                margin-top: 100px;
            }
            .o6ip-grid {
                grid-template-columns: 1fr;
            }
            .o6ip-scenario-card, .o6ip-scenario-card:nth-child(even) {
                flex-direction: column;
            }
        }