#tool-body {
  --c-primary: #00A3A3;
  --c-primary-light: #00bfbf;
  --c-primary-dark: #007a7a;
  --c-bg: #f5f7fa;
  --c-card: #ffffff;
  --c-border: #e4e8ef;
  --c-text: #2c3e50;
  --c-text-muted: #7f8c8d;
  --c-danger: #e74c3c;
  --c-success: #27ae60;
  --c-warning: #f39c12;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--c-text);
}

.theme-dark-mode #tool-body {
  --c-bg: #1a1d23;
  --c-card: #22262e;
  --c-border: #333a46;
  --c-text: #e0e6f0;
  --c-text-muted: #8896a8;
}

#tool-body .ic-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 16px 0 40px;
}

/* 格式選擇區 */
#tool-body .ic-format-bar {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
#tool-body .ic-format-label {
  font-weight: 600;
  font-size: 14px;
  color: var(--c-text-muted);
  white-space: nowrap;
}
#tool-body .ic-format-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
}
#tool-body .ic-fmt-btn {
  padding: 5px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--c-border);
  background: transparent;
  color: var(--c-text);
  font-size: 13px;
  cursor: pointer;
  transition: all .18s;
  font-weight: 500;
}
#tool-body .ic-fmt-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
#tool-body .ic-fmt-btn.active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* 質量/選項行 */
#tool-body .ic-options-bar {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 16px 24px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
#tool-body .ic-opt-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
#tool-body .ic-opt-group label {
  font-size: 13px;
  color: var(--c-text-muted);
  white-space: nowrap;
}
#tool-body .ic-quality-slider {
  width: 110px;
  accent-color: var(--c-primary);
}
#tool-body .ic-quality-val {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-primary);
  min-width: 32px;
}
#tool-body .ic-opt-select {
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 13px;
}

/* 上傳區 */
#tool-body .ic-drop-zone {
  background: var(--c-card);
  border: 2px dashed var(--c-border);
  border-radius: 12px;
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  margin-bottom: 16px;
  position: relative;
}
#tool-body .ic-drop-zone:hover,
#tool-body .ic-drop-zone.dragover {
  border-color: var(--c-primary);
  background: color-mix(in srgb, var(--c-primary) 4%, var(--c-card));
}
#tool-body .ic-drop-icon {
  font-size: 36px;
  color: var(--c-primary);
  margin-bottom: 10px;
}
#tool-body .ic-drop-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
#tool-body .ic-drop-sub {
  font-size: 13px;
  color: var(--c-text-muted);
}
#tool-body .ic-drop-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

/* 操作按鈕行 */
#tool-body .ic-action-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
#tool-body .ic-btn-primary {
  background: var(--c-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: background .18s;
}
#tool-body .ic-btn-primary:hover { background: var(--c-primary-light); }
#tool-body .ic-btn-primary:disabled { background: #aaa; cursor: not-allowed; }
#tool-body .ic-btn-ghost {
  background: transparent;
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  cursor: pointer;
  transition: all .18s;
}
#tool-body .ic-btn-ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }
#tool-body .ic-stats {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-text-muted);
}

/* 文件列表 */
#tool-body .ic-file-list {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  overflow: hidden;
}
#tool-body .ic-file-list-head {
  display: grid;
  grid-template-columns: 48px 1fr 90px 90px 100px 36px;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border);
  font-weight: 600;
  background: var(--c-bg);
}
#tool-body .ic-file-item {
  display: grid;
  grid-template-columns: 48px 1fr 90px 90px 100px 36px;
  padding: 10px 16px;
  align-items: center;
  border-bottom: 1px solid var(--c-border);
  font-size: 13px;
  transition: background .15s;
}
#tool-body .ic-file-item:last-child { border-bottom: none; }
#tool-body .ic-file-item:hover { background: var(--c-bg); }
#tool-body .ic-thumb {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
}
#tool-body .ic-thumb-placeholder {
  width: 36px; height: 36px;
  border-radius: 6px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--c-text-muted);
}
#tool-body .ic-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 12px;
}
#tool-body .ic-file-ext {
  display: inline-block;
  background: color-mix(in srgb, var(--c-primary) 12%, transparent);
  color: var(--c-primary);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 700;
  margin-right: 6px;
}
#tool-body .ic-file-size { color: var(--c-text-muted); font-size: 12px; }
#tool-body .ic-status {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
}
#tool-body .ic-status.pending { color: var(--c-text-muted); }
#tool-body .ic-status.converting { color: var(--c-warning); }
#tool-body .ic-status.done { color: var(--c-success); }
#tool-body .ic-status.error { color: var(--c-danger); }
#tool-body .ic-status.skip { color: var(--c-text-muted); font-style: italic; }
#tool-body .ic-dl-btn {
  background: none;
  border: none;
  color: var(--c-primary);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background .15s;
  display: none;
}
#tool-body .ic-dl-btn:hover { background: color-mix(in srgb, var(--c-primary) 12%, transparent); }
#tool-body .ic-dl-btn.show { display: inline-flex; align-items: center; }
#tool-body .ic-remove-btn {
  background: none;
  border: none;
  color: var(--c-text-muted);
  cursor: pointer;
  font-size: 15px;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all .15s;
}
#tool-body .ic-remove-btn:hover { color: var(--c-danger); background: color-mix(in srgb, var(--c-danger) 10%, transparent); }

/* 進度條 */
#tool-body .ic-progress-wrap {
  height: 3px;
  background: var(--c-border);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
  display: none;
}
#tool-body .ic-progress-bar {
  height: 100%;
  background: var(--c-primary);
  border-radius: 2px;
  transition: width .3s ease;
}

/* 下載全部 */
#tool-body .ic-download-all-wrap {
  text-align: center;
  padding: 20px 0 8px;
  display: none;
}

/* 空狀態 */
#tool-body .ic-empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--c-text-muted);
  font-size: 14px;
}

/* 移動端 */
@media (max-width: 640px) {
  #tool-body .ic-file-list-head,
  #tool-body .ic-file-item {
    grid-template-columns: 36px 1fr 70px 80px 24px;
  }
  #tool-body .ic-col-size { display: none; }
  #tool-body .ic-format-bar { flex-direction: column; align-items: flex-start; }
  #tool-body .ic-options-bar { gap: 14px; }
  #tool-body .ic-stats { margin-left: 0; }
}