/* 移动端单列瀑布流适配 */

@media (max-width: 768px) {
  /* 响应式容器 */
  .container {
    padding: 0;
  }
  
  .card {
    border-radius: 0;
    margin: 0;
    margin-bottom: 0;
    border: none;
    border-bottom: 1px solid #eee;
  }
  
  .card:last-child {
    border-bottom: none;
  }
  
  /* 导航栏优化 */
  .nav {
    flex-wrap: wrap;
    padding: 8px 12px;
  }
  
  .nav .brand {
    width: 100%;
    margin-bottom: 8px;
    font-size: 16px;
  }
  
  .nav .links {
    width: 100%;
    flex-wrap: wrap;
    gap: 4px;
  }
  
  .nav .links a {
    padding: 6px 10px;
    font-size: 12px;
  }
  
  /* 用户信息下拉菜单 */
  .user-btn {
    padding: 4px 8px;
    font-size: 12px;
  }
  
  .user-avatar {
    width: 24px;
    height: 24px;
  }
  
  .user-name {
    max-width: 80px;
  }
  
  .user-dropdown-menu {
    right: -20px;
    min-width: 240px;
  }
  
  /* 图片网格 - 单列瀑布流 */
  .gallery {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px;
  }
  
  .thumb {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    background: white;
  }
  
  .thumb .check {
    position: static;
    padding: 8px;
    display: flex;
    align-items: center;
    background: white;
  }
  
  .thumb a {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
  }
  
  .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .thumb .meta {
    flex: 1;
    padding: 8px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-size: 11px;
  }
  
  .thumb .meta > div:first-child {
    font-weight: 500;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .thumb .row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 4px;
  }
  
  .thumb input[type="text"] {
    padding: 4px;
    font-size: 10px;
    border: 1px solid #ddd;
    border-radius: 2px;
  }
  
  .thumb .btn {
    padding: 4px 6px;
    font-size: 10px;
  }
  
  /* 分页优化 */
  .pagination {
    padding: 12px 8px;
    gap: 2px;
  }
  
  .pagination-item {
    padding: 6px 8px;
    font-size: 12px;
  }
  
  /* 表单优化 */
  .row {
    flex-wrap: wrap;
  }
  
  input[type="text"],
  input[type="email"],
  input[type="password"],
  textarea,
  select {
    font-size: 16px; /* 防止iOS自动放大 */
  }
  
  button,
  .btn {
    font-size: 14px;
    padding: 10px 12px;
  }
  
  /* 搜索表单 */
  form.row {
    gap: 4px;
  }
  
  form.row input {
    flex: 1;
    min-width: 120px;
  }
  
  form.row button {
    flex-shrink: 0;
  }
  
  /* 上传区域 */
  #dropZone {
    padding: 12px;
    margin: 8px 0;
  }
  
  #dropZone .badge {
    font-size: 12px;
    padding: 4px 8px;
  }
  
  #previewBox {
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 8px;
    padding: 0;
  }
  
  .preview-item {
    aspect-ratio: 1;
    border-radius: 4px;
  }
  
  /* 图片查看器 */
  .image-viewer-modal {
    padding: 0;
  }
  
  .image-viewer-container {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    border-radius: 0;
  }
  
  .image-viewer-header,
  .image-viewer-footer {
    border-radius: 0;
    padding: 8px 12px;
    font-size: 12px;
  }
  
  .image-viewer-controls {
    gap: 4px;
  }
  
  .image-viewer-btn {
    padding: 4px 8px;
    font-size: 10px;
  }
  
  .image-viewer-nav {
    padding: 8px 12px;
    font-size: 20px;
  }
  
  /* 卡片优化 */
  .card h1 {
    font-size: 18px;
    margin: 12px 0;
  }
  
  .card h2 {
    font-size: 16px;
    margin: 12px 0;
  }
  
  .card p {
    font-size: 14px;
    line-height: 1.5;
  }
  
  /* 提示和警告 */
  .alert {
    padding: 12px;
    margin: 8px 0;
    font-size: 13px;
    border-radius: 4px;
  }
  
  /* 徽章 */
  .badge {
    padding: 4px 8px;
    font-size: 12px;
  }
  
  /* 隐藏不必要的元素 */
  .user-name {
    display: none;
  }
  
  .user-btn {
    border-radius: 50%;
    padding: 4px;
  }
}

/* 超小屏幕 */
@media (max-width: 480px) {
  .container {
    padding: 0;
  }
  
  .card {
    padding: 12px;
    margin: 0;
  }
  
  .nav {
    padding: 8px;
  }
  
  .nav .brand {
    font-size: 14px;
    margin-bottom: 6px;
  }
  
  .nav .links {
    gap: 2px;
  }
  
  .nav .links a {
    padding: 4px 8px;
    font-size: 11px;
    flex: 1;
    text-align: center;
  }
  
  .gallery {
    padding: 4px;
    gap: 4px;
  }
  
  .thumb {
    flex-direction: column;
  }
  
  .thumb .check {
    position: absolute;
    top: 4px;
    left: 4px;
    z-index: 10;
    background: white;
    border-radius: 2px;
    padding: 2px;
  }
  
  .thumb a {
    width: 100%;
    height: 120px;
  }
  
  .thumb .meta {
    padding: 6px;
    font-size: 10px;
  }
  
  .thumb .row {
    flex-direction: column;
    gap: 2px;
  }
  
  .thumb input[type="text"] {
    padding: 3px;
    font-size: 9px;
  }
  
  .thumb .btn {
    padding: 3px 6px;
    font-size: 9px;
  }
  
  .pagination {
    padding: 8px 4px;
    gap: 1px;
  }
  
  .pagination-item {
    padding: 4px 6px;
    font-size: 11px;
  }
  
  button,
  .btn {
    font-size: 13px;
    padding: 8px 10px;
  }
  
  .row {
    gap: 4px;
  }
  
  .card h1 {
    font-size: 16px;
    margin: 8px 0;
  }
  
  .card h2 {
    font-size: 14px;
    margin: 8px 0;
  }
  
  .card p {
    font-size: 12px;
  }
  
  .alert {
    padding: 8px;
    margin: 6px 0;
    font-size: 12px;
  }
  
  .badge {
    padding: 3px 6px;
    font-size: 11px;
  }
  
  /* 上传预览 */
  #previewBox {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 6px;
  }
  
  .preview-item {
    border-radius: 2px;
  }
  
  /* 用户下拉菜单 */
  .user-dropdown-menu {
    right: -40px;
    min-width: 200px;
  }
  
  .user-info-card {
    padding: 8px;
  }
  
  .user-avatar-large {
    width: 40px;
    height: 40px;
  }
  
  .user-avatar-placeholder-large {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
  
  .user-name-large {
    font-size: 14px;
  }
  
  .user-email {
    font-size: 11px;
  }
  
  .dropdown-item {
    padding: 8px 12px;
    font-size: 12px;
  }
}

/* 横屏模式 */
@media (max-width: 768px) and (orientation: landscape) {
  .nav {
    padding: 6px 12px;
  }
  
  .nav .brand {
    font-size: 14px;
    margin-bottom: 0;
    margin-right: 12px;
  }
  
  .nav .links {
    gap: 2px;
  }
  
  .nav .links a {
    padding: 4px 8px;
    font-size: 11px;
  }
  
  .card {
    padding: 8px;
  }
  
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 6px;
  }
  
  .thumb a {
    height: 100px;
  }
}