#tool-body {
  --primary: #16baaa;
  --primary-light: #e8f8f7;
  --card-bg: #fff;
  --card-border: #eee;
  --text-color: #333;
  --text-muted: #999;
  --tag-bg: #f5f5f5;
  --tag-hover: #e0f5f4;
  --input-bg: #fff;
  --tag-bg2: #faffff;
}
.theme-dark-mode #tool-body {
  --card-bg: #2a2a2a;
  --card-border: #3a3a3a;
  --text-color: #d2d2d2;
  --text-muted: #888;
  --tag-bg: #333;
  --tag-hover: #1a3a39;
  --input-bg: #222;
  --primary-light: #1a3a39;
  --tag-bg2: #344a49;
}

#tool-body .tb-search-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
#tool-body .tb-keyword-input {
  flex: 1;
  height: 40px;
  border: 2px solid var(--card-border);
  border-radius: 6px;
  padding: 0 14px;
  font-size: 15px;
  background: var(--input-bg);
  color: var(--text-color);
  outline: none;
  transition: border-color .2s;
}
#tool-body .tb-keyword-input:focus { border-color: var(--primary); }
#tool-body .tb-btn-search {
  height: 44px;
  padding: 0 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .2s;
}
#tool-body .tb-btn-search:hover { opacity: .88; }

#tool-body .tb-engines {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
  align-items: center;
}
#tool-body .tb-engine-chk {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-color);
  user-select: none;
}
#tool-body .tb-engine-chk input { cursor: pointer; }



#tool-body .tb-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  align-items: center;
}
#tool-body .tb-stat {
  font-size: 13px;
  color: var(--text-muted);
  margin-right: auto;
  min-width: 0;
}
#tool-body .tb-action-btn {
  height: 32px;
  padding: 0 13px;
  border-radius: 5px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-color);
  transition: all .15s;
  white-space: nowrap;
}
#tool-body .tb-action-btn:hover { border-color: var(--primary); color: var(--primary); }
#tool-body .tb-action-btn i { margin-right: 4px; }

#tool-body .tb-merged-wrap {
  margin-bottom: 14px;
  background: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: 8px;
  overflow: hidden;
}
#tool-body .tb-merged-wrap .tb-engine-card-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  /*   border-bottom: 1px solid var(--primary); */
  font-weight: bold;
  color: var(--primary);
  font-size: 15px;
}
#tool-body .tb-merged-wrap .tb-engine-card-header .tb-count {
  margin-left: auto;
  font-size: 11px;
  font-weight: normal;
  color: var(--primary);
  opacity: .7;
}
#tool-body .tb-merged-wrap .tb-tag-list {
  padding: 10px 10px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 48px;
  flex-direction: row;
}

/* 各引擎卡片网格 */
#tool-body .tb-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}
#tool-body .tb-engine-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
}
#tool-body .tb-engine-card-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--card-border);
  font-weight: bold;
  color: var(--text-color);
  font-size: 15px;
}
#tool-body .tb-engine-card-header .tb-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: normal;
}
#tool-body .tb-tag-list {
  padding: 10px 10px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 60px;
  flex-direction: column;
}
#tool-body .tb-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--tag-bg);
  color: var(--text-color);
  border-radius: 4px;
  padding: 9px;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s, color .15s;
  border: 1px solid transparent;
  justify-content: space-between;
}
#tool-body .tb-tag:hover {
  background: var(--tag-hover);
  color: var(--primary);
  border-color: var(--primary);
}
#tool-body .tb-tag .tb-tag-copy { font-size: 11px; opacity: 0; transition: opacity .15s; }
#tool-body .tb-tag:hover .tb-tag-copy { opacity: 1; }

#tool-body .tb-loading {
  padding: 16px 14px;
  font-size: 12px;
  color: var(--text-muted);
}
#tool-body .tb-empty {
  padding: 20px 14px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
#tool-body .tb-placeholder {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
  font-size: 14px;
}
#tool-body .tb-placeholder i {
  font-size: 40px;
  display: block;
  margin-bottom: 12px;
  color: var(--primary);
  opacity: .4;
}
/* Google 超时提示 */
#tool-body .tb-timeout-tip {
  font-size: 11px;
  color: var(--text-muted);
  padding: 4px 14px 10px;
}

@media (max-width: 600px) {
  #tool-body .tb-results { grid-template-columns: 1fr; }
  #tool-body .tb-toolbar { gap: 6px; }
  #tool-body .tb-action-btn { padding: 0 10px; font-size: 12px; }
}


#tool-body .tb-engine-chk {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 4px 10px 4px 6px;
  border-radius: 20px;
  border: 1px solid #ddd;
  font-size: 13px;
  transition: all .2s;
  user-select: none;
  padding: 4px 10px;
}

#tool-body .tb-engine-chk input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border: 1.5px solid #ccc;
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  transition: all .2s;
  flex-shrink: 0;
}

.theme-dark-mode #tool-body .tb-engine-chk,
.theme-dark-mode #tool-body .tb-engine-chk input[type="checkbox"]{
  border-color: var(--card-border);
}
#tool-body .tb-engine-chk input[type="checkbox"]:checked {
  background: var(--primary);
  border-color: var(--primary);
}

#tool-body .tb-engine-chk input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 0px;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.theme-dark-mode #tool-body .tb-engine-chk:has(input:checked) {
  border-color: var(--primary);
  background: rgba(22,186,170,.12);
  color: var(--primary);
}

#tool-body #tb-merged-section .tb-tag{
  background: var(--tag-bg2);
  font-size: 13px;
}