/* 增强型基础样式 */
.tabs-container { max-width: 880px; margin: 2rem auto; font-family: system-ui, sans-serif; }
/* 导航标签修复 */
.tab-nav { display: flex; gap: 5px; padding: 0 10px; }
.tab-nav-btn { padding: 1rem 2rem; cursor: pointer; background: #f5f5f5; border: none; border-radius: 4px 4px 0 0; transition: all 0.3s; position: relative; }
.tab-nav-btn.active { background: #fff; color: #3c78d8; box-shadow: 0 -3px 0 #3c78d8 inset; }
/* 内容区域优化 */
.tab-content {padding: 1.5rem; }
.tab-pane { display: none; animation: paneSlide 0.4s ease; }
.tab-pane.active { display: block; }
 @keyframes paneSlide {  from {
opacity: 0;
transform: translateY(10px);
}
to { opacity: 1; transform: translateY(0); }
}