/* 资源卡片样式 */
        .resource-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: all 0.3s;
            height: 100%;
            position: relative;
        }
        
        .resource-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .resource-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--accent);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }
        
        .resource-icon {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        
        .resource-features {
            list-style: none;
            padding: 0;
            margin: 20px 0;
        }
        
        .resource-features li {
            margin-bottom: 10px;
            padding-left: 25px;
            position: relative;
        }
        
        .resource-features li:before {
            content: '\f00c';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            color: var(--primary);
            position: absolute;
            left: 0;
        }
        
        /* 下载按钮样式 */
        .download-btn {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 6px;
            font-weight: 500;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            text-decoration: none;
        }
        
        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(37, 99, 235, 0.3);
            color: white;
        }
        
        .download-btn i {
            margin-right: 8px;
        }
        
        /* 进度条样式 */
        .progress-container {
            background: #f1f5f9;
            border-radius: 10px;
            height: 10px;
            margin: 15px 0;
        }
        
        .progress-bar {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            height: 100%;
            transition: width 0.5s;
        }
        
        /* 学习计划样式 */
        .plan-card {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            margin-bottom: 25px;
            border-left: 4px solid var(--primary);
        }
        
        .plan-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .plan-title {
            color: var(--primary);
            margin: 0;
        }
        
        .plan-duration {
            background: var(--light);
            color: var(--primary);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }
        
        /* 工具卡片样式 */
        .tool-card {
            text-align: center;
            padding: 30px 20px;
            background: linear-gradient(135deg, #f8fafc 0%, #e6f0ff 100%);
            border-radius: 12px;
            transition: all 0.3s;
            height: 100%;
        }
        
        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .tool-icon {
            font-size: 50px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        
        /* 策略卡片样式 */
        .strategy-card {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
        }
        
        .strategy-icon {
            font-size: 36px;
            color: var(--primary);
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .strategy-card {
                flex-direction: column;
                text-align: center;
            }
            
            .strategy-icon {
                margin-right: 0;
                margin-bottom: 15px;
            }
        }
        
        /* 资料分类标签 */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }
        
        .category-tab {
            background: var(--light);
            color: var(--dark);
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .category-tab.active {
            background: var(--primary);
            color: white;
        }
        
        .category-tab:hover {
            background: var(--primary);
            color: white;
        }
        
        /* 计数标签样式 */
        .count-badge {
            background: var(--accent);
            color: white;
            border-radius: 50%;
            width: 25px;
            height: 25px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            margin-left: 8px;
        }
        
        /* 资源网格样式 */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        
        /* 模拟测试样式 */
        .exam-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border-radius: 15px;
            padding: 30px;
            margin: 40px 0;
        }
        
        /* 学习统计样式 */
        .stats-container {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            margin: 40px 0;
        }
        
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 1.1rem;
            color: #64748b;
        }