:root {
            --o6ip-primary: #ae0000;
            --o6ip-primary-dark: #8b0000;
            --o6ip-secondary: #2c3e50;
            --o6ip-bg-light: #fdfdfd;
            --o6ip-bg-accent: #f4f7f9;
            --o6ip-text-main: #333333;
            --o6ip-text-muted: #666666;
            --o6ip-white: #ffffff;
            --o6ip-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --o6ip-border: #e0e0e0;
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--o6ip-text-main);
            line-height: 1.7;
            background-color: var(--o6ip-bg-light);
            word-break: break-word;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .o6ip-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .o6ip-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--o6ip-border);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .o6ip-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 80px;
            min-width: 0;
        }

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

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

        .o6ip-nav-list {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .o6ip-nav-item {
            min-width: 0;
        }

        .o6ip-nav-link {
            text-decoration: none;
            color: var(--o6ip-secondary);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s ease;
            padding: 8px 4px;
            position: relative;
        }

        .o6ip-nav-link:hover, .o6ip-nav-link.o6ip-active {
            color: var(--o6ip-primary);
        }

        .o6ip-nav-link.o6ip-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--o6ip-primary);
        }

        /* 非对称Hero区 */
        .o6ip-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, #fff 0%, #f4f7f9 100%);
            position: relative;
            overflow: hidden;
        }

        .o6ip-hero::before {
            content: "";
            position: absolute;
            top: -10%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(174,0,0,0.03) 0%, transparent 70%);
            z-index: 0;
        }

        .o6ip-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .o6ip-hero-content {
            z-index: 1;
        }

        .o6ip-hero-tag {
            display: inline-block;
            background: rgba(174,0,0,0.1);
            color: var(--o6ip-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .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: keep-all;
        }

        .o6ip-hero-subtitle {
            font-size: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
            color: var(--o6ip-text-muted);
            margin-bottom: 32px;
            max-width: 600px;
        }

        .o6ip-hero-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
        }

        .o6ip-badge {
            background: var(--o6ip-white);
            border: 1px solid var(--o6ip-border);
            padding: 12px 20px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        /* 教程主体 - 非对称布局 */
        .o6ip-main-layout {
            padding: 96px 0;
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 64px;
        }

        .o6ip-sidebar {
            position: sticky;
            top: 120px;
            height: fit-content;
        }

        .o6ip-sidebar-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--o6ip-primary);
        }

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

        .o6ip-step-item {
            margin-bottom: 16px;
        }

        .o6ip-step-link {
            text-decoration: none;
            color: var(--o6ip-text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 500;
            transition: all 0.3s;
        }

        .o6ip-step-link:hover {
            color: var(--o6ip-primary);
            transform: translateX(5px);
        }

        .o6ip-step-num {
            width: 28px;
            height: 28px;
            background: var(--o6ip-bg-accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
        }

        /* 内容板块 */
        .o6ip-content-section {
            margin-bottom: 80px;
        }

        .o6ip-section-label {
            color: var(--o6ip-primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 13px;
            margin-bottom: 12px;
            display: block;
        }

        .o6ip-section-title {
            font-size: 28px;
            margin-bottom: 24px;
            color: var(--o6ip-secondary);
        }

        .o6ip-feature-card {
            background: var(--o6ip-white);
            border-radius: 16px;
            padding: 32px;
            border: 1px solid var(--o6ip-border);
            margin-bottom: 32px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .o6ip-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--o6ip-shadow);
        }

        .o6ip-feature-header {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            margin-bottom: 20px;
        }

        .o6ip-feature-icon {
            font-size: 24px;
            padding: 12px;
            background: var(--o6ip-bg-accent);
            border-radius: 12px;
        }

        .o6ip-feature-impact {
            margin-top: 20px;
            padding: 16px;
            background: #fff8f8;
            border-left: 4px solid var(--o6ip-primary);
            font-size: 14px;
            color: var(--o6ip-primary-dark);
        }

        /* 部署场景区块 */
        .o6ip-scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .o6ip-scenario-box {
            background: var(--o6ip-secondary);
            color: var(--o6ip-white);
            padding: 40px;
            border-radius: 20px;
            position: relative;
            overflow: hidden;
        }

        .o6ip-scenario-box h3 {
            font-size: 22px;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .o6ip-scenario-box p {
            font-size: 15px;
            opacity: 0.8;
            position: relative;
            z-index: 1;
        }

        .o6ip-scenario-box::after {
            content: "TRANSFER";
            position: absolute;
            bottom: -20px;
            right: -20px;
            font-size: 60px;
            font-weight: 900;
            opacity: 0.05;
        }

        /* 页脚 */
        .o6ip-footer {
            background: #1a1a1a;
            color: var(--o6ip-white);
            padding: 80px 0 40px;
            margin-top: 80px;
        }

        .o6ip-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .o6ip-footer-brand {
            flex: 1 1 300px;
        }

        .o6ip-brand-name {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--o6ip-white);
        }

        .o6ip-footer-links {
            flex: 2 1 600px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .o6ip-footer-list a {
            color: #999;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .o6ip-footer-list a:hover {
            color: var(--o6ip-white);
        }

        .o6ip-copyright {
            padding-top: 32px;
            border-top: 1px solid #333;
            text-align: center;
            font-size: 14px;
            color: #666;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .o6ip-main-layout {
                grid-template-columns: 1fr;
            }
            .o6ip-sidebar {
                display: none;
            }
            .o6ip-hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .o6ip-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .o6ip-hero-badge-group {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .o6ip-nav-wrapper {
                height: auto;
                padding: 16px 0;
            }
            .o6ip-nav-list {
                width: 100%;
                justify-content: center;
                margin-top: 16px;
                gap: 12px;
            }
            .o6ip-hero {
                padding-top: 160px;
            }
            .o6ip-footer-links {
                grid-template-columns: 1fr;
            }
        }