/* 响应式设计 - 手机样式 */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    body {
        padding: 10px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .header h1 {
        font-size: 20px;
    }
    
    .header-nav {
        gap: 10px;
    }
    
    .header-nav a {
        font-size: 14px;
    }
    
    .toolbar {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .create-post-btn {
        width: 100%;
        text-align: center;
    }
    
    .post-item {
        padding: 12px 15px;
    }
    
    .post-title {
        font-size: 15px;
    }
    
    .post-meta {
        flex-wrap: wrap;
        font-size: 12px;
        gap: 8px;
    }
    
    .post-content-preview {
        font-size: 13px;
    }
    
    .category-tabs {
        gap: 8px;
    }
    
    .category-tab {
        padding: 4px 12px;
        font-size: 12px;
    }
    
    .modal-content {
        margin: 10% auto;
        padding: 20px;
        width: 95%;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
    
    textarea {
        height: 120px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .posts-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .post-count {
        font-size: 12px;
    }
}

/* 平板样式 */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 90%;
    }
    
    .header h1 {
        font-size: 35px;
    }
    
    .modal-content {
        max-width: 80%;
    }
}

/* 小屏幕手机优化 */
@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    
    .header {
        padding: 8px 15px;
        margin-bottom: 15px;
    }
    
    .header h1 {
        font-size: 18px;
    }
    
    .post-item {
        padding: 10px 12px;
    }
    
    .post-title {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .modal-content {
        margin: 5% auto;
        padding: 15px;
    }
    
    .modal-header h3 {
        font-size: 16px;
    }
}