/* ===== 3D 模型多视口分析工具 ===== */

#tv3d-app { margin-top: 1rem; }

.tv3d-banner {
  display: flex;
  justify-content: center;
  padding: 0.45rem 0.8rem;
  margin-bottom: 0.8rem;
  border: 1px solid rgba(128, 128, 128, 0.35);
  border-radius: 8px;
  font-size: 0.85rem;
  opacity: 0.8;
}

/* ---- 工具栏 ---- */
.tv3d-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}
.tv3d-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(128, 128, 128, 0.45);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.tv3d-btn:hover:not(:disabled) { border-color: #2f6fde; }
.tv3d-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.tv3d-btn-primary { background: #2f6fde; border-color: #2f6fde; color: #fff; }
.tv3d-btn-primary:hover:not(:disabled) { background: #2560c4; }
[mode='dark'] .tv3d-btn:hover:not(:disabled) { border-color: #5b8ff0; }
[mode='dark'] .tv3d-btn-primary { background: #5b8ff0; border-color: #5b8ff0; color: #101418; }

.tv3d-hint { font-size: 0.82rem; opacity: 0.65; }
.tv3d-sep {
  width: 1px;
  height: 1.3rem;
  background: rgba(128, 128, 128, 0.4);
  margin: 0 0.3rem;
}

/* ---- 视口舞台 ---- */
.tv3d-stage {
  position: relative;
  height: 540px;
  border-radius: 10px;
  overflow: hidden;
  background: #1a1a1a;
  user-select: none;
  touch-action: none;
}
#tv3d-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* 四视口覆盖格：hover 高亮 + 标题 + 事件分区 */
.tv3d-cells {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}
.tv3d-cell {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-sizing: border-box;
  transition: box-shadow 0.1s ease;
}
.tv3d-cell[data-vp="0"], .tv3d-cell[data-vp="1"] { border-top: none; }
.tv3d-cell[data-vp="0"], .tv3d-cell[data-vp="2"] { border-left: none; }
.tv3d-cell[data-vp="1"], .tv3d-cell[data-vp="3"] { border-right: none; }
.tv3d-cell[data-vp="2"], .tv3d-cell[data-vp="3"] { border-bottom: none; }
.tv3d-cell:hover,
.tv3d-cell.hover {
  box-shadow: inset 0 0 0 2px #40a9ff;
  z-index: 2;
}
.tv3d-cell-title {
  position: absolute;
  top: 8px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.45);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  pointer-events: none;
}
/* UV 视口内「无 UV 坐标」提示：半透明遮罩 + 生成投影 UV 按钮 */
.tv3d-uv-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  text-align: center;
  background: rgba(10, 12, 16, 0.55);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  line-height: 1.5;
  z-index: 1;
}
.tv3d-uv-hint small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.75rem;
}
.tv3d-mini {
  pointer-events: auto;
  padding: 1px 8px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 4px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.72rem;
  cursor: pointer;
}
.tv3d-mini:hover { border-color: #40a9ff; color: #40a9ff; }

/* 移动端视口标签 */
.tv3d-tabs { display: none; }
.tv3d-tabs button {
  flex: 1;
  padding: 0.35rem 0;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-left-width: 0;
  background: rgba(0, 0, 0, 0.55);
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.82rem;
  cursor: pointer;
}
.tv3d-tabs button:first-child { border-left-width: 1px; border-radius: 6px 0 0 6px; }
.tv3d-tabs button:last-child { border-radius: 0 6px 6px 0; }
.tv3d-tabs button.active {
  background: rgba(64, 169, 255, 0.22);
  color: #fff;
  border-color: #40a9ff;
}

.tv3d-dropmask {
  position: absolute;
  inset: 10px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #40a9ff;
  border-radius: 8px;
  background: rgba(26, 26, 26, 0.82);
  color: #40a9ff;
  font-size: 1.05rem;
  pointer-events: none;
}
.tv3d-status {
  position: absolute;
  bottom: 8px;
  left: 10px;
  right: 10px;
  z-index: 3;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.78rem;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tv3d-measure-label {
  position: absolute;
  z-index: 4;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.7);
  color: #69f0ae;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  transform: translate(-50%, -140%);
}

/* ---- 面板 ---- */
.tv3d-panel {
  margin-top: 1.4rem;
  padding: 1.1rem 1.3rem;
  border: 1px solid rgba(128, 128, 128, 0.35);
  border-radius: 10px;
}
.tv3d-title {
  margin: 0 0 0.9rem;
  font-size: 1.05rem;
  font-weight: 600;
}
.tv3d-sliders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.9rem 1.4rem;
}
.tv3d-slider label {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  margin-bottom: 0.3rem;
}
.tv3d-slider output {
  font-variant-numeric: tabular-nums;
  color: #2f6fde;
}
[mode='dark'] .tv3d-slider output { color: #5b8ff0; }
.tv3d-slider input[type="range"] { width: 100%; }
.tv3d-override { margin-top: 1rem; }
.tv3d-check { display: block; font-size: 0.88rem; margin-bottom: 0.7rem; cursor: pointer; }
.tv3d-override .tv3d-sliders { margin-top: 0.5rem; }
.tv3d-override .tv3d-slider input:disabled { opacity: 0.4; }

.tv3d-measurebar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}
.tv3d-inline { font-size: 0.88rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.tv3d-select {
  padding: 0.3rem 0.5rem;
  border: 1px solid rgba(128, 128, 128, 0.45);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.85rem;
}

.tv3d-error {
  margin-top: 1rem;
  padding: 0.7rem 1rem;
  border: 1px solid #ff7875;
  border-radius: 8px;
  color: #cf1322;
  background: rgba(255, 77, 79, 0.08);
  font-size: 0.88rem;
  word-break: break-all;
}
[mode='dark'] .tv3d-error { color: #ff9c9c; }

/* ---- 截图标注层 ---- */
.tv3d-annot {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  background: rgba(0, 0, 0, 0.88);
}
.tv3d-annot-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: #1a1a1a;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.tv3d-annot-bar .tv3d-btn { color: rgba(255, 255, 255, 0.85); border-color: rgba(255, 255, 255, 0.3); }
.tv3d-annot-bar .tv3d-btn:hover:not(:disabled) { border-color: #40a9ff; }
.tv3d-annot-bar .tv3d-btn-primary { color: #fff; }
.tv3d-tool.active { border-color: #40a9ff; color: #40a9ff; }
.tv3d-colors { display: inline-flex; gap: 0.35rem; }
.tv3d-color {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}
.tv3d-color.active { border-color: #fff; }
.tv3d-annot-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 1rem;
}
#tv3d-annot-canvas {
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
  cursor: crosshair;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}

/* ---- 移动端：单视口 + 标签切换 ---- */
@media (max-width: 767px) {
  .tv3d-stage { height: 66vh; }
  .tv3d-cells { grid-template-columns: 1fr; grid-template-rows: 1fr; }
  .tv3d-cell { display: none; border: none !important; }
  .tv3d-cell.active { display: block; }
  .tv3d-tabs {
    display: flex;
    position: absolute;
    top: 6px;
    left: 8px;
    right: 8px;
    z-index: 3;
  }
  .tv3d-tabs button { pointer-events: auto; }
}