:root {
  --primary: #4f6ef7;
  --primary-dark: #3d5ae0;
  --ok: #2e9e5b;
  --err: #d93838;
  --text: #24292f;
  --muted: #6a737d;
  --border: #d0d7de;
  --bg: #f6f8fa;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

#batch-remove-text-container {
    margin-left: 240px;
    flex: 1;
    min-width: 0;
    min-height: 100vh;
    padding: 32px 40px 60px;
    background: var(--bg);
}

#stage {
    max-width: 860px;
    margin: 0 auto;
}

.page-header { text-align: center; margin-bottom: 28px; }
.page-header h1 { margin: 0 0 6px; font-size: 26px; }
.subtitle { margin: 0; color: var(--muted); }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  text-align: center;
}

.hint { color: var(--muted); font-size: 13px; margin-top: 14px; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; color: var(--muted); }

/* ---------- 拖放区 ---------- */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 48px 20px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  outline: none;
}
.dropzone:hover, .dropzone:focus, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(79,110,247,.05);
}
.dz-icon { font-size: 40px; margin-bottom: 10px; }
.dz-title { font-size: 17px; font-weight: 600; margin: 0 0 6px; }
.dz-sub { color: var(--muted); font-size: 13px; margin: 0; letter-spacing: 2px; }

/* ---------- 校验结果 ---------- */
.bad-list {
  text-align: left; color: var(--err); font-size: 13px;
  max-height: 160px; overflow: auto; margin: 10px auto 0; max-width: 520px;
  padding-left: 20px;
}

/* ---------- 标记工作区 ---------- */
.tip { color: var(--muted); margin: 0 0 14px; }
.tip.ok { color: var(--ok); font-weight: 600; }

#zoom-controls {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  margin-bottom: 12px;
}
#zoom-controls button {
  width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 6px;
  background: #fff; cursor: pointer; font-size: 16px;
}
#zoom-controls button:disabled { opacity: .4; cursor: default; }
#zoom-value { font-size: 13px; color: var(--muted); min-width: 44px; }

#canvas-viewport {
  border: 1px solid var(--border);
  border-radius: 8px;

  /* 不让图片区域产生局部滚动 */
  overflow: visible;

  background:
    linear-gradient(45deg, #eee 25%, transparent 25%, transparent 75%, #eee 75%),
    linear-gradient(45deg, #eee 25%, #fafafa 25%, #fafafa 75%, #eee 75%);

  background-size: 16px 16px;
  background-position: 0 0, 8px 8px;

  /* 高度由图片自然撑开 */
  max-height: none;
}

#canvas-zoom-target {
  position: relative;
  display: block;

  /* 图片不超过工作区宽度 */
  max-width: 100%;

  /* zoom 的 transform 从左上角开始 */
  transform-origin: top left;
}
#image-canvas { display: block; max-width: 100%; height: auto; }
#mask-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  touch-action: none;      /* 关键：阻止触摸滚动 */
  cursor: crosshair;
}

.brush-row {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin: 18px 0 22px; flex-wrap: wrap;
}
.brush-row label { font-size: 14px; color: var(--muted); }
.brush-row input[type=range] { width: 180px; }
#brush-size-val { font-size: 13px; min-width: 44px; text-align: left; }

/* ---------- 按钮 ---------- */
button.primary {
  background: var(--primary); color: #fff; border: none;
  padding: 12px 32px; font-size: 15px; font-weight: 600;
  border-radius: 8px; cursor: pointer;
}
button.primary:hover:not(:disabled) { background: var(--primary-dark); }
button.primary:disabled { opacity: .45; cursor: default; }
button.ghost {
  background: #fff; color: var(--text); border: 1px solid var(--border);
  padding: 12px 24px; font-size: 14px; border-radius: 8px; cursor: pointer;
}
button.ghost:hover { border-color: var(--muted); }

/* ---------- 进度 ---------- */
.progress-bar {
  height: 10px; background: #eef1f5; border-radius: 5px;
  overflow: hidden; margin: 10px 0 14px;
}
.progress-fill {
  height: 100%; width: 0;
  background: var(--primary); border-radius: 5px;
  transition: width .2s ease;
}
.progress-label { font-size: 14px; margin: 0 0 4px; }

#progress-count { font-size: 18px; font-weight: 600; margin: 6px 0; }

#model-loading { margin: 0 0 20px; }
#model-loading .progress-bar { margin: 8px 0 0; }

/* ---------- 状态文本 ---------- */
.ok { color: var(--ok); }
.error-text { color: var(--err); }
.big { font-size: 20px; font-weight: 600; }
#error-detail { white-space: pre-wrap; }

#section-completed button, #section-error button { margin: 10px 6px 0; }

.tool-notice {
    margin-top: 32px;
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.9;
}