/* ==========================================
   移动端全局自适应、居中与去滑块优化
   ========================================== */
@media (max-width: 700px) {
  /* 1. 强制去除左右滚动，隐藏所有滚动条（UI美观） */
  html, body {
    overflow-x: hidden !important;
    width: 100% !important;
    max-width: 100vw !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  ::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
  }
  
  * {
    scrollbar-width: none !important; /* Firefox */
    -ms-overflow-style: none !important; /* IE 10+ */
  }

  /* 2. 彻底隐藏移动端的底部信息 */
  footer {
    display: none !important;
  }

  /* 3. 恢复上下左右居中，并允许内容超过屏幕时正常滑动 */
  body {
    padding: 12px !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    min-height: 100vh !important;
    transition: background 0.5s ease-in-out; /* 背景切换渐显效果 */
  }

  /* ==========================================
     核心：移动端背景图懒加载机制
     ========================================== */
  /* 默认（未加载完成前）：展示纯色垫底，不阻塞首屏 */
  body.light-theme {
    background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)), #fffbf0 !important;
    background-attachment: scroll !important; 
  }
  
  /* 懒加载完成（加上 mobile-bg-loaded 类名后）：平滑展示 m1.webp */
  body.light-theme.mobile-bg-loaded {
    background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)), url('mbg.webp') no-repeat center center / cover !important;
    background-attachment: scroll !important;
  }

  /* 4. 核心布局：去掉大框，并用 margin: auto 实现智能居中 */
  .dashboard {
    margin: auto !important; 
    width: 100% !important;
    padding: 0 !important; 
    
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }

  body.light-theme .dashboard {
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    border-radius: 0 !important;
  }

  /* 5. 搜索框自适应（左右留白 12px + 高度增加 + 18px圆角） */
  .search-section { 
    margin-bottom: 56px !important; 
    width: 100% !important; 
    padding: 0 12px !important; 
    box-sizing: border-box !important;
    position: relative !important; 
  }
  .search-box {
    background: rgba(20, 0, 0, 0.7);
    padding: 0 4px 0 4px;
    border-radius: 18px !important; 
    width: 100% !important;
    box-sizing: border-box !important;
  }
  body.light-theme .search-box {
    background: #ffffff !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: 1px solid rgba(0, 0, 0, 0.05) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
  }
  
  .search-box input {
    color: #1f2328 !important;
    padding: 16px 14px !important; 
    min-width: 0 !important;
  }
  
  body.light-theme .search-box input::placeholder {
    color: rgba(80, 90, 110, 0.6) !important;
  }
  .search-box button.search-btn { 
    padding: 13px 18px !important; 
    font-size: 0.85rem !important; 
    flex-shrink: 0 !important; 
    border-radius: 12px !important;
  }
  .engine-selector { display: none !important; }
  .search-input-wrapper {
    width: 100% !important;
    min-width: 0 !important;
  }

  /* 6. 下拉面板对齐搜索框（左右12px + 18px圆角） */
  .search-dropdown-panel {
    flex-direction: column !important;
    border-radius: 18px !important; 
    width: auto !important; 
    max-width: none !important; 
    box-sizing: border-box !important;
    left: 12px !important; 
    right: 12px !important; 
    overflow-x: hidden !important;
  }
  .panel-left, .panel-right {
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .panel-left {
    border-right: none !important;
    border-bottom: 1px solid rgba(255, 215, 0, 0.15) !important;
  }
  .history-list, .news-list {
    max-height: 220px !important;
    overflow-x: hidden !important;
  }

  /* 7. 快捷图标网格（2行3列）与高级质感 */
  .header { display: none; }
  .nav-grid { display: none; }
  .mobile-circle-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr) !important; /* 3列布局 */
    gap: 28px 10px !important; 
    margin-top: 0 !important; 
    width: 100% !important;
    padding: 0 12px !important; 
    box-sizing: border-box;
  }
  
  /* 点击交互反馈 */
  .circle-item { 
    gap: 8px !important; 
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) !important; 
  }
  .circle-item:active {
    transform: scale(0.92) !important;
  }

  /* 基础圆圈样式（深色模式质感，尺寸因变3列而略微缩小） */
  .circle-icon {
    width: 64px !important; 
    height: 64px !important;
    font-size: 1.8rem !important; 
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    
    background: linear-gradient(145deg, rgba(60, 10, 10, 0.7), rgba(20, 0, 0, 0.9)) !important;
    border: 1px solid rgba(255, 215, 0, 0.3) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6), inset 0 2px 4px rgba(255, 215, 0, 0.15) !important;
    
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all 0.2s ease !important;
  }

  /* 浅色模式圆圈样式（莹润白玉质感） */
  body.light-theme .circle-icon {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.65)) !important;
    border: 1px solid rgba(255, 255, 255, 1) !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08), inset 0 -2px 6px rgba(0, 0, 0, 0.03) !important;
  }

  /* 点击按下的内阴影反馈 */
  .circle-item:active .circle-icon {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), inset 0 2px 6px rgba(0, 0, 0, 0.1) !important;
  }

  /* 文字优化 */
  body.light-theme .circle-text {
    font-size: 0.85rem !important; 
    color: #ffffff !important;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.6) !important;
    font-weight: 600 !important;
    letter-spacing: 0.5px !important;
  }
  body:not(.light-theme) .circle-text {
    font-size: 0.85rem !important;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.8) !important;
    font-weight: 500 !important;
    letter-spacing: 0.5px !important;
  }

  /* 移除移动端悬浮效果 */
  .search-box:hover, .weather-widget:hover, .time-widget:hover {
    border-color: rgba(255, 215, 0, 0.2);
    background: rgba(20, 0, 0, 0.7);
    box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.8);
  }
  .search-box:focus-within {
    border-color: rgba(255, 215, 0, 0.8);
    background: rgba(40, 5, 5, 0.9);
    box-shadow: 0 0 0 4px rgba(230, 0, 18, 0.2), 0 0 30px rgba(255, 215, 0, 0.15);
  }

  .widget-tooltip { display: none !important; }
  .theme-toggle-btn, .tooltip-wrapper[data-tooltip="切换颜色模式"] { display: none !important; }
}

/* 针对更小屏幕（如 iPhone SE）的极窄适配 */
@media (max-width: 380px) {
  .mobile-circle-grid { gap: 22px 6px !important; padding: 0 8px !important;}
  .circle-icon { width: 56px !important; height: 56px !important; font-size: 1.6rem !important; }
  .circle-text { font-size: 0.8rem !important; }
  .search-box button.search-btn { padding: 13px 14px !important; }
  .search-section { margin-bottom: 40px !important; padding: 0 8px !important; }
  
  .search-dropdown-panel {
    left: 8px !important;
    right: 8px !important;
  }
}