:root {
            --o6ip-primary: #bf0000;
            --o6ip-dark: #2c3e50;
            --o6ip-light: #f4f7f6;
            --o6ip-text: #333333;
            --o6ip-accent: #e74c3c;
            --o6ip-border: #dcdde1;
            --o6ip-sidebar-width: 280px;
        }

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

        body {
            font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            color: var(--o6ip-text);
            background-color: #ffffff;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .o6ip-wrapper {
            display: flex;
            flex-wrap: wrap;
            min-height: 100vh;
        }

        /* 侧边导航 */
        .o6ip-sidebar {
            width: var(--o6ip-sidebar-width);
            background: var(--o6ip-dark);
            color: #ffffff;
            position: fixed;
            height: 100vh;
            left: 0;
            top: 0;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform 0.3s ease;
        }

        .o6ip-logo {
            padding: 48px 32px;
            text-align: center;
        }

        .o6ip-logo img {
            max-width: 160px;
            height: auto;
            filter: drop-shadow(0 4px 6px rgba(0,0,0,0.2));
        }

        .o6ip-nav {
            flex-grow: 1;
            padding: 0 16px;
        }

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

        .o6ip-nav-item {
            margin-bottom: 8px;
        }

        .o6ip-nav-link {
            display: block;
            padding: 12px 24px;
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s ease;
            font-size: 1rem;
            word-break: keep-all;
        }

        .o6ip-nav-link:hover {
            background: rgba(255,255,255,0.1);
            color: #ffffff;
            padding-left: 32px;
        }

        .o6ip-nav-link.o6ip-active {
            background: var(--o6ip-primary);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(191, 0, 0, 0.3);
        }

        /* 主体内容区 */
        .o6ip-main {
            flex: 1;
            margin-left: var(--o6ip-sidebar-width);
            min-width: 0;
            position: relative;
        }

        /* 动态背景背景线 */
        .o6ip-bg-lines {
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            opacity: 0.05;
            pointer-events: none;
            background-image: linear-gradient(90deg, var(--o6ip-dark) 1px, transparent 1px),
                              linear-gradient(0deg, var(--o6ip-dark) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        /* Hero 区块 - 非对称设计 */
        .o6ip-hero {
            padding: 96px 5vw;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
            background: linear-gradient(135deg, #ffffff 0%, #f9f9f9 100%);
        }

        .o6ip-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .o6ip-hero-tag {
            display: inline-block;
            background: rgba(191, 0, 0, 0.1);
            color: var(--o6ip-primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: bold;
            font-size: 0.9rem;
            margin-bottom: 24px;
        }

        .o6ip-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--o6ip-dark);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .o6ip-hero p {
            font-size: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
            color: #666;
            max-width: 600px;
            margin-bottom: 40px;
            word-break: break-word;
        }

        .o6ip-download-card {
            flex: 0 1 400px;
            min-width: 300px;
            background: #ffffff;
            padding: 40px;
            border-radius: 24px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.1);
            border-top: 5px solid var(--o6ip-primary);
            position: relative;
        }

        .o6ip-version-badge {
            position: absolute;
            top: -15px;
            right: 30px;
            background: var(--o6ip-dark);
            color: #fff;
            padding: 5px 15px;
            border-radius: 5px;
            font-size: 0.8rem;
        }

        .o6ip-btn-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .o6ip-btn-main {
            display: block;
            text-align: center;
            background: var(--o6ip-primary);
            color: #ffffff;
            text-decoration: none;
            padding: 18px 32px;
            border-radius: 12px;
            font-weight: bold;
            font-size: 1.2rem;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .o6ip-btn-main:hover {
            background: #a00000;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(191, 0, 0, 0.2);
        }

        .o6ip-btn-sub {
            display: block;
            text-align: center;
            border: 2px solid var(--o6ip-dark);
            color: var(--o6ip-dark);
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .o6ip-btn-sub:hover {
            background: var(--o6ip-dark);
            color: #fff;
        }

        /* 效率特性区块 */
        .o6ip-section {
            padding: 80px 5vw;
        }

        .o6ip-section-header {
            margin-bottom: 64px;
            max-width: 800px;
        }

        .o6ip-section-title {
            font-size: clamp(1.5rem, 2vw + 1rem, 2.5rem);
            color: var(--o6ip-dark);
            margin-bottom: 16px;
        }

        .o6ip-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .o6ip-feature-item {
            background: var(--o6ip-light);
            padding: 40px;
            border-radius: 16px;
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .o6ip-feature-item:hover {
            transform: translateY(-10px);
            background: #fff;
            box-shadow: 0 15px 30px rgba(0,0,0,0.05);
        }

        .o6ip-feature-name {
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--o6ip-primary);
            margin-bottom: 16px;
        }

        .o6ip-feature-desc {
            color: #555;
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .o6ip-feature-impact {
            font-size: 0.9rem;
            font-weight: bold;
            color: var(--o6ip-dark);
            border-left: 3px solid var(--o6ip-primary);
            padding-left: 12px;
        }

        /* 部署场景 */
        .o6ip-scenario-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .o6ip-scenario-card {
            flex: 1;
            min-width: 320px;
            border: 1px solid var(--o6ip-border);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .o6ip-scenario-content {
            padding: 32px;
        }

        .o6ip-scenario-tag {
            color: var(--o6ip-primary);
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
            display: block;
        }

        .o6ip-scenario-title {
            font-size: 1.25rem;
            margin-bottom: 16px;
            color: var(--o6ip-dark);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .o6ip-sidebar {
                transform: translateX(-100%);
                width: 100%;
                height: auto;
                position: relative;
            }
            .o6ip-main {
                margin-left: 0;
            }
            .o6ip-wrapper {
                flex-direction: column;
            }
            .o6ip-sidebar.o6ip-active {
                transform: translateX(0);
            }
            .o6ip-logo {
                padding: 24px;
            }
            .o6ip-nav {
                padding-bottom: 24px;
            }
        }

        @media (max-width: 768px) {
            .o6ip-hero {
                padding: 64px 24px;
            }
            .o6ip-section {
                padding: 48px 24px;
            }
        }

        /* 页脚 */
        .o6ip-footer {
            background: var(--o6ip-dark);
            color: #fff;
            padding: 64px 5vw;
        }

        .o6ip-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }

        .o6ip-footer-brand {
            font-size: 2rem;
            font-weight: bold;
            color: #fff;
        }

        .o6ip-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .o6ip-footer-links a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            transition: color 0.3s;
        }

        .o6ip-footer-links a:hover {
            color: #fff;
        }

        .o6ip-copyright {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: rgba(255,255,255,0.4);
            text-align: center;
        }

        /* 移动端切换按钮 */
        .o6ip-menu-toggle {
            display: none;
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1001;
            background: var(--o6ip-primary);
            color: #fff;
            border: none;
            padding: 10px 15px;
            border-radius: 5px;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .o6ip-menu-toggle {
                display: block;
            }
        }