#container {
  max-width: 1200px;
  margin: 30px auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

#graph {
  display: grid;
  grid-gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  margin-top: 20px;
}

h1 {
  margin: 0 0 20px 0;
  color: #2c3e50;
  font-size: 28px;
}

article {
  font-size: 15px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 30px;
}

article a {
  color: #3498db;
  text-decoration: none;
}

article a:hover {
  text-decoration: underline;
}

.align-center-box {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 6px;
}

label {
  color: #2c3e50;
  font-size: 16px;
  margin-right: 15px;
  font-weight: 500;
}

input[type="file"] {
  padding: 8px;
  background: #fff;
  border-radius: 4px;
  border: 1px solid #ddd;
}

input#text {
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 15px;
}

input[type=range] {
  width: 200px;
  height: 6px;
  border-radius: 3px;
}

canvas {
  width: 100%;
  border: 2px dashed #ddd;
  border-radius: 8px;
  transition: all 0.3s ease;
}

canvas:hover {
  border-color: #3498db;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

button {
  background: #3498db;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.3s ease;
  margin-left: 10px;
}

button:hover {
  background: #2980b9;
}

.image-container {
  position: relative;
  background: #f8f9fa;
  padding: 10px;
  border-radius: 8px;
  transition: all 0.3s ease;
  draggable: true;
  cursor: move;
}

.image-container:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.image-container canvas {
  width: 100%;
  height: auto;
  display: block;
  margin: 0;
  border: 1px solid #eee;
}

.image-info {
  padding: 10px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.image-info span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.download-btn {
  background: #3498db;
  color: white;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.download-btn:hover {
  background: #2980b9;
}

.image-container canvas {
  cursor: zoom-in;
  transition: transform 0.2s;
}

.image-container canvas:hover {
  transform: scale(1.02);
}

#previewModal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  display: none;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  will-change: opacity, transform;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

#previewModal.active {
  opacity: 1;
}

#previewImage {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
  transform: scale(0.95);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform, filter;
  cursor: zoom-out;
}

#previewModal.active #previewImage {
  transform: scale(1);
}

/* 添加模糊效果过渡 */
#previewImage.blur {
  filter: blur(10px);
  transform: scale(0.98);
}

/* 优化加载指示器 */
#previewModal::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  opacity: 0;
  transition: opacity 0.3s;
}

#previewModal.loading::before {
  opacity: 1;
}

/* 添加进度条样式 */
.preview-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.preview-progress-inner {
  width: 100%;
  height: 100%;
  background: var(--button-primary);
  transform-origin: left;
}

/* 深色模式适配 */
[data-theme="dark"] #previewModal::before {
  border-color: rgba(0, 0, 0, 0.2);
  border-top-color: var(--text-color);
}

/* 移动端优化 */
@media (max-width: 768px) {
  #previewImage {
    max-width: 100%;
    max-height: 100%;
  }

  #previewModal {
    padding: 0;
  }
}

/* 优化动画性能 */
@media (prefers-reduced-motion: reduce) {
  #previewImage,
  #previewModal {
    transition: none;
  }
}

.delete-btn {
  background: #e74c3c;
}

.delete-btn:hover {
  background: #c0392b;
}

/* 添加拖拽相关的样式 */
.drag-area {
  border: 2px dashed #ddd;
  border-radius: 8px;
  background: #f8f9fa;
  transition: all 0.3s ease;
  position: relative;
}

.drag-area.dragover {
  border-color: #3498db;
  background: #ebf5fb;
}

.drag-area::after {
  content: '拖拽图片到此处上传';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 16px;
  color: #666;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.drag-area.empty::after {
  opacity: 1;
}

#graph:empty {
  min-height: 200px;
}

.upload-container {
  flex: 1;
}

.upload-box {
  position: relative;
  min-height: 120px;
  border: 2px dashed #ddd;
  border-radius: 8px;
  background: #f8f9fa;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.upload-box:hover {
  border-color: #3498db;
  background: #ebf5fb;
}

.upload-box input[type="file"] {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-hint {
  text-align: center;
  pointer-events: none;
}

.upload-icon {
  font-size: 32px;
  margin-bottom: 10px;
  display: block;
}

.upload-tip {
  font-size: 12px;
  color: #999;
  margin-top: 5px;
}

.upload-progress {
  margin-top: 10px;
  display: none;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.progress-bar {
  height: 4px;
  background: var(--progress-bg);
  border-radius: 2px;
  overflow: hidden;
}

.progress-inner {
  height: 100%;
  background: var(--button-primary);
  width: 0;
  transition: all 0.3s ease;
}

.progress-text {
  font-size: 12px;
  color: var(--secondary-text);
  text-align: center;
  margin-top: 5px;
}

.dragover {
  border-color: #3498db;
  background: #ebf5fb;
  transform: scale(1.02);
}

.button-group {
  display: flex;
  gap: 10px;
  margin: 10px 0;
}

.delete-all-btn {
  background: #e74c3c;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.3s;
}

.delete-all-btn:hover {
  background: #c0392b;
}

/* 添加深色主题样式 */
:root {
  --bg-color: #ffffff;
  --text-color: #2c3e50;
  --container-bg: #fff;
  --border-color: #ddd;
  --box-bg: #f8f9fa;
  --shadow-color: rgba(0,0,0,0.1);
  --link-color: #3498db;
  --secondary-text: #666;
  --upload-border: #ddd;
  --upload-hover-bg: #ebf5fb;
  --progress-bg: #eee;
  --button-primary: #3498db;
  --button-hover: #2980b9;
  --button-delete: #e74c3c;
  --button-delete-hover: #c0392b;
  --input-bg: #ffffff;
  --input-border: #ddd;
  --input-color: #2c3e50;
  --range-bg: #ddd;
  --range-active: #3498db;
  --drag-border: #ddd;
  --drag-hover-bg: #ebf5fb;
  --canvas-border: #ddd;
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --text-color: #e0e0e0;
  --container-bg: #2d2d2d;
  --border-color: #404040;
  --box-bg: #333333;
  --shadow-color: rgba(0,0,0,0.3);
  --link-color: #5dade2;
  --secondary-text: #999;
  --upload-border: #404040;
  --upload-hover-bg: #3d3d3d;
  --progress-bg: #404040;
  --button-primary: #2980b9;
  --button-hover: #3498db;
  --button-delete: #c0392b;
  --button-delete-hover: #e74c3c;
  --input-bg: #333333;
  --input-border: #404040;
  --input-color: #e0e0e0;
  --range-bg: #404040;
  --range-active: #2980b9;
  --drag-border: #404040;
  --drag-hover-bg: #3d3d3d;
  --canvas-border: #404040;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease;
}

#container {
  background: var(--container-bg);
  box-shadow: 0 2px 12px var(--shadow-color);
}

.align-center-box {
  background: var(--box-bg);
}

input[type="file"],
input[type="text"] {
  background: var(--container-bg);
  border-color: var(--border-color);
  color: var(--text-color);
}

.image-container {
  background: var(--box-bg);
}

/* 主题切换按钮样式 */
.theme-switch {
  position: fixed;
  right: 20px;
  top: 20px;
  background: var(--container-bg);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 1000;
  transition: all 0.3s ease;
}

.theme-switch:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 8px var(--shadow-color);
}

.theme-icon {
  font-size: 18px;
}

article {
  color: var(--secondary-text);
}

article a {
  color: var(--link-color);
}

.upload-box {
  border-color: var(--upload-border);
  background: var(--box-bg);
}

.upload-box:hover {
  border-color: var(--link-color);
  background: var(--upload-hover-bg);
}

.upload-tip {
  color: var(--secondary-text);
}

.progress-bar {
  background: var(--progress-bg);
}

.progress-inner {
  background: var(--button-primary);
}

.progress-text {
  color: var(--secondary-text);
}

button {
  background: var(--button-primary);
  color: white;
}

button:hover {
  background: var(--button-hover);
}

.delete-btn {
  background: var(--button-delete);
}

.delete-btn:hover {
  background: var(--button-delete-hover);
}

.delete-all-btn {
  background: var(--button-delete);
}

.delete-all-btn:hover {
  background: var(--button-delete-hover);
}

.image-info {
  color: var(--secondary-text);
}

.drag-area::after {
  color: var(--secondary-text);
}

.dragover {
  border-color: var(--link-color);
  background: var(--upload-hover-bg);
}

canvas {
  border-color: var(--border-color);
}

canvas:hover {
  border-color: var(--link-color);
}

footer {
  color: var(--secondary-text);
  border-top-color: var(--border-color);
}

footer a {
  color: var(--link-color);
}

#previewModal {
  background: rgba(0,0,0,0.9);
}

/* 添加新的样式规则 */
input[type="color"] {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

input[type="range"] {
  background: var(--range-bg);
}

input[type="range"]::-webkit-slider-thumb {
  background: var(--range-active);
}

input[type="range"]::-moz-range-thumb {
  background: var(--range-active);
}

.drag-area {
  border-color: var(--drag-border);
  background: var(--box-bg);
}

.drag-area.dragover {
  border-color: var(--link-color);
  background: var(--drag-hover-bg);
}

canvas {
  border: 2px dashed var(--canvas-border);
}

h1 {
  color: var(--text-color);
}

label {
  color: var(--text-color);
}

.upload-hint p {
  color: var(--text-color);
}

.theme-switch {
  color: var(--text-color);
}

.theme-text {
  color: var(--text-color);
}

/* 修改预览模态框样式 */
#previewModal {
  background: rgba(0, 0, 0, 0.9);
}

#previewImage {
  background: var(--container-bg);
  padding: 10px;
  border-radius: 8px;
}

/* 调整滚动条样式 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--box-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-text);
}

/* 调整选中文本的颜色 */
::selection {
  background: var(--button-primary);
  color: white;
}

/* 移动端基础样式优化 */
@media (max-width: 768px) {
  #container {
    margin: 10px;
    padding: 15px;
  }

  h1 {
    font-size: 22px;
    margin-bottom: 15px;
  }

  article {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .align-center-box {
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
  }

  label {
    margin-bottom: 8px;
    margin-right: 0;
  }

  input[type="text"] {
    width: 100%;
    margin-bottom: 10px;
  }

  .button-group {
    flex-direction: column;
  }

  .button-group button {
    width: 100%;
    margin: 5px 0;
  }

  /* 调整主题切换按钮位置 */
  .theme-switch {
    top: 10px;
    right: 10px;
    padding: 6px 12px;
    font-size: 14px;
  }

  /* 优化图片网格布局 */
  #graph {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  /* 调整上传框大小 */
  .upload-box {
    min-height: 100px;
  }

  .upload-icon {
    font-size: 24px;
  }

  /* 优化控制条布局 */
  input[type="range"] {
    width: 100%;
    margin: 10px 0;
  }

  /* 调整预览模态框 */
  #previewModal {
    padding: 10px;
  }

  #previewImage {
    max-width: 100%;
    max-height: 90vh;
  }
}

/* 添加触摸设备优化 */
@media (hover: none) {
  .image-container canvas {
    cursor: default;
  }

  .upload-box:hover {
    transform: none;
  }

  button:active {
    transform: scale(0.98);
  }

  .theme-switch:active {
    transform: scale(0.95);
  }
}

/* 优化触摸操作区域 */
button,
input[type="file"],
.theme-switch {
  min-height: 44px;
}

/* 防止iOS缩放 */
@supports (-webkit-touch-callout: none) {
  input[type="color"],
  input[type="range"] {
    font-size: 16px;
  }
}

/* 基础按钮样式优化 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  gap: 6px;
  min-height: 36px;
  min-width: 80px;
  color: white;
}

/* 主要按钮 */
.btn-primary {
  background: var(--button-primary);
  box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
}

.btn-primary:hover {
  background: var(--button-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

/* 危险按钮 */
.btn-danger {
  background: var(--button-delete);
  box-shadow: 0 2px 4px rgba(231, 76, 60, 0.2);
}

.btn-danger:hover {
  background: var(--button-delete-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

/* 按钮图标 */
.btn-icon {
  font-size: 18px;
  line-height: 1;
}

/* 按钮组样式 */
.button-group {
  display: flex;
  gap: 12px;
  margin: 15px 0;
  flex-wrap: wrap;
}

/* 小型按钮 */
.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  min-height: 32px;
  min-width: 60px;
}

/* 按钮加载状态 */
.btn.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.8;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: button-loading 0.6s linear infinite;
}

@keyframes button-loading {
  to {
    transform: rotate(360deg);
  }
}

/* 移动端适配 */
@media (max-width: 768px) {
  .button-group {
    gap: 8px;
  }

  .btn {
    padding: 8px 14px;
    font-size: 13px;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .btn:active {
    transform: scale(0.98);
  }
}

.style-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  margin: 0;
  background: var(--input-bg);
  border: none;
  color: var(--text-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.style-btn:hover {
  background: var(--box-bg);
}

.style-btn.active {
  background: var(--button-primary);
  color: white;
}

.font-select-wrapper select:hover {
  border-color: var(--button-primary);
}

.font-select-wrapper select:focus {
  border-color: var(--button-primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* 复制按钮样式 */
.copy-btn {
  background: var(--button-primary);
}

.copy-btn:hover {
  background: var(--button-hover);
}

/* Toast提示框样式 */
#toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 12px 24px;
  border-radius: 4px;
  font-size: 14px;
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

#toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* 深色模式适配 */
[data-theme="dark"] #toast {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-color);
}

/* 移动端适配 */
@media (max-width: 768px) {
  #toast {
    width: 80%;
    text-align: center;
    padding: 10px 16px;
    font-size: 13px;
  }
}

/* 添加文件名容器样式 */
.file-name {
  font-size: 13px;
  color: var(--text-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}

/* 修改按钮组样式 */
.button-group-container {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
}

.button-group-container .download-btn {
  flex: 1;
  min-width: 0;
  padding: 6px;
  font-size: 12px;
}

/* 添加下载进度条样式 */
.download-progress {
  position: relative;
  padding: 20px;
  border-radius: 8px;
  background: var(--box-bg);
  margin-top: 15px;
  display: none;
  opacity: 1;
  transition: all 0.3s ease;
  width: 100%;
  box-sizing: border-box;
}

.progress-container {
  flex: 1;
  margin-right: 90px; /* 减小按钮预留空间 */
  width: calc(100% - 90px); /* 确保固定宽度 */
}

.progress-bar {
  height: 6px;
  background: var(--progress-bg);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
  width: 100%;
}

.progress-inner {
  height: 100%;
  background: var(--button-primary);
  width: 0;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 13px;
  color: var(--text-color);
  margin-bottom: 4px;
}

.progress-eta {
  font-size: 12px;
  color: var(--secondary-text);
}

.progress-actions {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 80px; /* 固定按钮容器宽度 */
}

.cancel-btn,
.retry-btn {
  padding: 6px 12px;
  border-radius: 4px;
  border: none;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%; /* 按钮填满容器 */
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.cancel-btn {
  background: var(--button-delete);
  color: white;
}

.retry-btn {
  background: var(--button-primary);
  color: white;
  display: none;
}

.cancel-btn:hover,
.retry-btn:hover {
  transform: scale(1.05);
}

/* 移动端适配 */
@media (max-width: 768px) {
  .download-progress {
    padding: 15px;
  }

  .progress-container {
    margin-right: 0;
    margin-bottom: 10px;
  }

  .progress-actions {
    position: static;
    transform: none;
    display: flex;
    justify-content: stretch;
    gap: 8px;
    margin-top: 12px;
    width: 100%;
  }

  .cancel-btn,
  .retry-btn {
    flex: 1;
    width: 100%;
    padding: 8px;
  }
}

.preview-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  padding: 20px 15px;
  cursor: pointer;
  font-size: 20px;
  opacity: 0;
  transition: opacity 0.3s, background 0.3s;
}

#previewModal:hover .preview-nav {
  opacity: 0.7;
}

.preview-nav:hover {
  opacity: 1 !important;
  background: rgba(0, 0, 0, 0.8);
}

.preview-nav.prev {
  left: 20px;
  border-radius: 0 3px 3px 0;
}

.preview-nav.next {
  right: 20px;
  border-radius: 3px 0 0 3px;
}

@media (max-width: 768px) {
  .preview-nav {
    padding: 15px 10px;
    font-size: 16px;
  }
}

.template-buttons {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.template-btn {
  background: var(--box-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.template-btn:hover {
  background: var(--button-primary);
  color: white;
  border-color: var(--button-primary);
}

@media (max-width: 768px) {
  .template-buttons {
    margin-top: 8px;
    gap: 6px;
  }

  .template-btn {
    padding: 4px 8px;
    font-size: 12px;
  }

  template-buttons {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .template-btn {
    background: var(--box-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .template-btn:hover {
    background: var(--button-primary);
    color: white;
    border-color: var(--button-primary);
  }

  @media (max-width: 768px) {
    .template-buttons {
      margin-top: 8px;
      gap: 6px;
    }

    .template-btn {
      padding: 4px 8px;
      font-size: 12px;
    }
  }

  .download-progress {
    position: relative;
    padding: 20px;
    border-radius: 8px;
    background: var(--box-bg);
    margin-top: 15px;
    display: none;
    opacity: 1;
    transition: all 0.3s ease;
    width: 100%;
    box-sizing: border-box;
  }

  .progress-container {
    flex: 1;
    margin-right: 90px; /* 减小按钮预留空间 */
    width: calc(100% - 90px); /* 确保固定宽度 */
  }

  .progress-bar {
    height: 6px;
    background: var(--progress-bg);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
    width: 100%;
  }

  .progress-inner {
    height: 100%;
    background: var(--button-primary);
    width: 0;
    transition: width 0.3s ease;
  }

  .progress-text {
    font-size: 13px;
    color: var(--text-color);
    margin-bottom: 4px;
  }

  .progress-eta {
    font-size: 12px;
    color: var(--secondary-text);
  }

  .progress-actions {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 80px; /* 固定按钮容器宽度 */
  }

  .cancel-btn,
  .retry-btn {
    padding: 6px 12px;
    border-radius: 4px;
    border: none;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%; /* 按钮填满容器 */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
  }

  .cancel-btn {
    background: var(--button-delete);
    color: white;
  }

  .retry-btn {
    background: var(--button-primary);
    color: white;
    display: none;
  }

  .cancel-btn:hover,
  .retry-btn:hover {
    transform: scale(1.05);
  }

  /* 移动端适配 */
  @media (max-width: 768px) {
    .download-progress {
      padding: 15px;
    }

    .progress-container {
      margin-right: 0;
      margin-bottom: 10px;
    }

    .progress-actions {
      position: static;
      transform: none;
      display: flex;
      justify-content: stretch;
      gap: 8px;
      margin-top: 12px;
      width: 100%;
    }

    .cancel-btn,
    .retry-btn {
      flex: 1;
      width: 100%;
      padding: 8px;
    }
  }

  .preview-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 20px 15px;
    cursor: pointer;
    font-size: 20px;
    opacity: 0;
    transition: opacity 0.3s, background 0.3s;
  }

  #previewModal:hover .preview-nav {
    opacity: 0.7;
  }

  .preview-nav:hover {
    opacity: 1 !important;
    background: rgba(0, 0, 0, 0.8);
  }

  .preview-nav.prev {
    left: 20px;
    border-radius: 0 3px 3px 0;
  }

  .preview-nav.next {
    right: 20px;
    border-radius: 3px 0 0 3px;
  }

  @media (max-width: 768px) {
    .preview-nav {
      padding: 15px 10px;
      font-size: 16px;
    }
  }

  /* 基础样式 */
  :root {
    --bg-color: #ffffff;
    --text-color: #2c3e50;
    --container-bg: #fff;
    /* ... 其他变量定义 ... */
  }

  /* 深色主题 */
  [data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    /* ... 其他深色主题变量 ... */
  }

  /* 容器样式 */
  #container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 20px;
    background: var(--container-bg);
    border-radius: 8px;
    box-shadow: 0 2px 12px var(--shadow-color);
    transition: all 0.3s ease;
  }
}