:root {
        --primary-color: #27ae60;
        --primary-dark: #219653;
        --secondary-color: #2d3748;
        --text-color: #4a5568;
        --light-bg: #f8fafc;
        --border-color: #e2e8f0;
        --warning-bg: #fff5f5;
        --warning-border: #fc8181;
        --warning-text: #9b2c2c;
    }
    
    .sourcing-hub-container * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    .sourcing-hub-container {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        line-height: 1.6;
        color: var(--text-color);
        background-color: #fff;
        padding: 0;
        max-width: 100%;
    }
    
    /* 标题样式 */
    .sourcing-hub-container h2 {
        color: var(--primary-color);
        border-bottom: 3px solid var(--primary-color);
        padding-bottom: 10px;
        margin-top: 40px;
        font-size: 28px;
        font-weight: 600;
    }
    
    .sourcing-hub-container h3 {
        color: var(--secondary-color);
        margin-top: 0;
        font-size: 22px;
        font-weight: 600;
    }
    
    /* 核心价值部分 */
    .sourcing-hub-container .core-value {
        font-size: 18px;
        line-height: 1.6;
        margin-bottom: 30px;
        background: var(--light-bg);
        padding: 25px;
        border-radius: 12px;
        border-left: 4px solid var(--primary-color);
    }
    
    /* 模块卡片 */
    .sourcing-hub-container .module-card {
        background: var(--light-bg);
        border-radius: 12px;
        padding: 25px;
        margin: 30px 0;
        border-left: 4px solid var(--primary-color);
        position: relative;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    
    .sourcing-hub-container .module-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }
    
    .sourcing-hub-container .module-status {
        position: absolute;
        top: 25px;
        right: 25px;
        background: #e8f5e9;
        color: var(--primary-dark);
        padding: 5px 15px;
        border-radius: 20px;
        font-size: 14px;
        font-weight: 600;
    }
    
    .sourcing-hub-container .coming-soon {
        background: #fff3e0;
        color: #f57c00;
    }
    
    .sourcing-hub-container .in-progress {
        background: #e3f2fd;
        color: #1976d2;
    }
    
    .sourcing-hub-container .core-content {
        background: white;
        padding: 20px;
        border-radius: 8px;
        margin: 20px 0;
        border: 1px solid var(--border-color);
    }
    
    .sourcing-hub-container .core-content strong {
        color: var(--secondary-color);
        display: block;
        margin-bottom: 10px;
        font-size: 16px;
    }
    
    .sourcing-hub-container .core-content ul {
        margin: 0;
        padding-left: 20px;
    }
    
    .sourcing-hub-container .core-content li {
        margin-bottom: 8px;
    }
    
    /* 按钮样式 */
    .sourcing-hub-container .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary-color);
        text-decoration: none;
        font-weight: 500;
        font-size: 16px;
        background: white;
        padding: 10px 20px;
        border-radius: 25px;
        border: 2px solid var(--primary-color);
        margin-top: 10px;
        transition: all 0.3s ease;
        cursor: pointer;
    }
    
    .sourcing-hub-container .btn:hover {
        background: var(--primary-color);
        color: white;
    }
    
    .sourcing-hub-container .btn-disabled {
        border-color: #cbd5e0;
        color: #a0aec0;
        cursor: not-allowed;
    }
    
    .sourcing-hub-container .btn-disabled:hover {
        background: white;
        color: #a0aec0;
    }
    
    /* 使用路径网格 */
    .sourcing-hub-container .paths-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
        margin: 30px 0;
    }
    
    .sourcing-hub-container .path-card {
        background: white;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        padding: 25px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        transition: transform 0.3s ease;
    }
    
    .sourcing-hub-container .path-card:hover {
        transform: translateY(-5px);
    }
    
    .sourcing-hub-container .path-number {
        background: var(--primary-color);
        color: white;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        margin-bottom: 20px;
    }
    
    .sourcing-hub-container .path-card h3 {
        font-size: 18px;
    }
    
    .sourcing-hub-container .path-card p {
        color: var(--text-color);
        margin: 8px 0;
    }
    
    .sourcing-hub-container .path-subtext {
        color: #718096;
        font-size: 14px;
        line-height: 1.5;
    }
    
    /* 专业服务部分 */
    .sourcing-hub-container .services-section {
        background: linear-gradient(135deg, #2ecc71 0%, var(--primary-color) 100%);
        border-radius: 12px;
        padding: 30px;
        color: white;
        margin: 30px 0;
    }
    
    .sourcing-hub-container .services-section h3 {
        color: white;
    }
    
    .sourcing-hub-container .services-section p {
        color: rgba(255,255,255,0.9);
    }
    
    .sourcing-hub-container .services-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-top: 20px;
    }
    
    .sourcing-hub-container .service-card {
        background: rgba(255,255,255,0.1);
        padding: 20px;
        border-radius: 8px;
        transition: transform 0.3s ease;
    }
    
    .sourcing-hub-container .service-card:hover {
        transform: translateY(-5px);
    }
    
    .sourcing-hub-container .service-icon {
        font-size: 24px;
        margin-bottom: 10px;
    }
    
    .sourcing-hub-container .service-card strong {
        display: block;
        margin-bottom: 8px;
    }
    
    .sourcing-hub-container .service-card p {
        color: rgba(255,255,255,0.8);
        font-size: 14px;
        margin: 0;
        line-height: 1.5;
    }
    
    .sourcing-hub-container .cta-button {
        display: inline-block;
        background: white;
        color: var(--primary-color);
        padding: 12px 30px;
        border-radius: 25px;
        font-weight: 600;
        text-decoration: none;
        margin-top: 25px;
        border: 2px solid white;
        transition: all 0.3s ease;
    }
    
    .sourcing-hub-container .cta-button:hover {
        background: transparent;
        color: white;
    }
    
    /* 重要通知 */
    .sourcing-hub-container .important-notice {
        background: var(--warning-bg);
        border-left: 4px solid var(--warning-border);
        padding: 20px;
        border-radius: 0 8px 8px 0;
        margin: 30px 0;
    }
    
    .sourcing-hub-container .important-notice strong {
        color: var(--warning-text);
        display: block;
        margin-bottom: 10px;
    }
    
    /* 更新计划部分 */
    .sourcing-hub-container .timeline-section {
        background: #f0f9ff;
        border-radius: 12px;
        padding: 25px;
        margin: 30px 0;
        border: 1px solid #bae6fd;
    }
    
    .sourcing-hub-container .timeline-section h3 {
        color: #0369a1;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .sourcing-hub-container .timeline-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        margin-top: 20px;
    }
    
    .sourcing-hub-container .timeline-item {
        background: white;
        padding: 15px;
        border-radius: 8px;
        border-left: 4px solid #38bdf8;
    }
    
    .sourcing-hub-container .timeline-item.completed {
        border-left-color: var(--primary-color);
        opacity: 0.8;
    }
    
    .sourcing-hub-container .timeline-date {
        color: #0369a1;
        font-weight: 600;
        margin-bottom: 5px;
        font-size: 14px;
    }
    
    /* 响应式设计 */
    @media (max-width: 768px) {
        .sourcing-hub-container h2 {
            font-size: 24px;
            margin-top: 30px;
        }
        
        .sourcing-hub-container h3 {
            font-size: 20px;
        }
        
        .sourcing-hub-container .module-card,
        .sourcing-hub-container .path-card {
            padding: 20px;
        }
        
        .sourcing-hub-container .paths-grid,
        .sourcing-hub-container .services-grid,
        .sourcing-hub-container .timeline-grid {
            grid-template-columns: 1fr;
        }
        
        .sourcing-hub-container .module-status {
            position: relative;
            top: 0;
            right: 0;
            margin-bottom: 15px;
            display: inline-block;
        }
    }
    
    @media (max-width: 480px) {
        .sourcing-hub-container .core-value {
            padding: 20px;
            font-size: 16px;
        }
        
        .sourcing-hub-container .btn,
        .sourcing-hub-container .cta-button {
            width: 100%;
            text-align: center;
            justify-content: center;
        }
    }