/* ==========================================
   移动端响应式适配 - 极简版
   ========================================== */

@media (max-width: 768px) {
    /* 导航栏折叠 */
    .sidebar { 
        width: 50px; 
        top: 50px;
    }
    
    .nav-item { 
        padding: 12px 0; 
        justify-content: center; 
    }
    
    .nav-icon { 
        margin-right: 0;
    }
    
    .nav-text { 
        display: none; 
    }
    
    /* 内容区 */
    .content { 
        margin-left: 50px;
        padding: 15px;
    }
    
    /* 网格容器 - 关键修复 */
    .resource-grid { 
        grid-template-columns: 1fr !important;
        gap: 15px;
        width: 100%;
        overflow-x: hidden;
    }
    
    /* 卡片 - 关键修复三件套 */
    .resource-card { 
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow: hidden;
    }
    
    /* 顶部栏 */
    .header { 
        height: 50px; 
        padding: 0 10px; 
    }
    
    .main-container { 
        margin-top: 50px; 
        height: calc(100vh - 50px);
    }
    
    .site-title { 
        font-size: 16px; 
    }
    
    .search-input { 
        width: 100px; 
        font-size: 13px; 
    }
    
    .admin-btn { 
        width: 28px; 
        height: 28px; 
    }
    
    .admin-btn svg { 
        width: 14px; 
        height: 14px; 
    }
    
    /* 固定按钮 */
    .fixed-contribute-btn { 
        width: 36px; 
        height: 36px; 
    }
    
    .fixed-contribute-btn svg { 
        width: 16px; 
        height: 16px; 
    }
    
    /* Toast */
    .toast-container { 
        bottom: 60px; 
        right: 10px; 
        left: 60px; 
    }
    
    .toast {
        min-width: auto;
    }
    
    /* 弹窗 */
    .modal-content { 
        width: 95%;
    }
}