:root {
  --bg: #E8E1D8; --fg: #231F1A; --card: #FCFBF9; --muted: #F1EBE2;
  --muted-fg: #8F877E; --border: #DDD5C8; --primary: #987444; --primary-dark: #7E5F38;
  --primary-tint: #EFE6D8; --canvas: #2E2A25; --canvas-2: #3A352F; --canvas-fg: #EFE9E0;
  --success: #4D7B55; --success-bg: #E9F1EA;
  --error: #A65A55; --info: #5F7386; --info-bg: #E8EEF2;
  --text-2: #3C3832; --text-3: #62574E; --caption: #ABA39A;
  --r-sm: 4px; --r-md: 6px; --r-lg: 8px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html, body { height:100%; }
body {
  font-family:'Inter','PingFang SC','Noto Sans SC',system-ui,sans-serif;
  font-size:13px; color:var(--fg); background:var(--bg);
  display:flex; flex-direction:column; height:100vh; overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
button { font-family:inherit; cursor:pointer; }
button:disabled { cursor:not-allowed; opacity:.45; }

/* ===== 顶栏 ===== */
.topbar {
  height:52px; flex:none; display:flex; align-items:center; gap:12px;
  padding:0 16px; background:var(--card); border-bottom:1px solid var(--border);
}
.brand { font-family:'Noto Serif SC','Source Han Serif SC',serif; font-size:15px; font-weight:600; }
.spacer { flex:1; }
.btn {
  height:34px; padding:0 14px; border-radius:var(--r-md); font-size:13px; font-weight:600;
  border:1px solid var(--border); background:var(--card); color:var(--text-2);
  display:inline-flex; align-items:center; gap:6px;
  transition:background-color .15s, color .15s, border-color .15s;
}
.btn:hover:not(:disabled) { background:var(--muted); }
.btn-primary { background:var(--primary); border-color:var(--primary); color:#fff; }
.btn-primary:hover:not(:disabled) { background:var(--primary-dark); border-color:var(--primary-dark); }

/* ===== 主体三栏 ===== */
.workspace { flex:1; min-height:0; display:grid; grid-template-columns:264px minmax(0,1fr) 300px; }
.workspace > * { min-height:0; height:100%; }

/* 队列 */
.queue { background:var(--card); border-right:1px solid var(--border); display:flex; flex-direction:column; min-height:0; }
.queue-head { padding:12px 14px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.queue-head h2 { font-size:13px; font-weight:600; }
.queue-head .btn { height:28px; padding:0 10px; font-size:12px; }
/* 文件名搜索框 */
.queue-search {
  margin:10px 10px 0; padding:6px 9px; font-size:12px; color:var(--fg);
  border:1px solid var(--border); border-radius:var(--r-md); background:var(--bg); outline:none;
}
.queue-search:focus { border-color:var(--primary); box-shadow:0 0 0 2px var(--primary-tint); }
/* 状态筛选分段控件 */
.queue-filter {
  display:flex; gap:2px; margin:10px 10px 0; padding:2px;
  background:var(--muted); border:1px solid var(--border); border-radius:var(--r-md);
}
.queue-filter button {
  flex:1; height:26px; border:0; border-radius:var(--r-sm); background:transparent;
  font-size:12px; color:var(--text-3); display:inline-flex; align-items:center; justify-content:center; gap:4px;
  transition:background-color .15s, color .15s;
}
.queue-filter button:hover:not(.active) { background:var(--card); }
.queue-filter button.active { background:var(--primary-tint); color:var(--primary); font-weight:600; }
.queue-filter button .n { font-variant-numeric:tabular-nums; }
/* 筛选后的空队列提示 */
.queue-filter-empty { padding:24px 16px; text-align:center; font-size:12px; color:var(--caption); }
.queue-list { flex:1; overflow-y:auto; list-style:none; }
.queue-item {
  display:flex; align-items:center; gap:10px; padding:10px 14px;
  border-bottom:1px solid var(--border); cursor:pointer; position:relative;
  transition:background-color .15s;
}
.queue-item:hover { background:var(--muted); }
.queue-item.is-selected { background:var(--primary-tint); box-shadow:inset 3px 0 0 var(--primary); }
.thumb { width:40px; height:52px; flex:none; border-radius:var(--r-sm); overflow:hidden; background:var(--muted); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; color:var(--caption); font-size:14px; }
.thumb img { width:100%; height:100%; object-fit:cover; display:block; }
.qm { min-width:0; flex:1; }
.qm .name { font-size:12px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.qm .meta { display:flex; align-items:center; gap:6px; margin-top:3px; }
.badge { font-size:11px; line-height:18px; padding:0 7px; border-radius:var(--r-sm); white-space:nowrap; }
.badge.pending { background:var(--muted); color:var(--text-3); }
.badge.processed { background:var(--info-bg); color:var(--info); }

/* 预览 */
.preview { position:relative; background:var(--canvas); display:flex; align-items:center; justify-content:center; min-width:0; height:100%; overflow:hidden; }
.preview-toolbar {
  position:absolute; top:12px; left:50%; transform:translateX(-50%);
  display:flex; gap:4px; padding:4px; border-radius:var(--r-lg);
  background:rgba(58,53,47,.85);
}
.icon-btn {
  width:32px; height:32px; border:0; border-radius:var(--r-md); background:transparent;
  color:var(--canvas-fg); font-size:15px; display:inline-flex; align-items:center; justify-content:center;
}
.icon-btn:hover:not(:disabled) { background:rgba(255,255,255,.12); }
.stage { display:flex; align-items:center; justify-content:center; width:100%; height:100%; padding:32px; }
.stage img { max-width:100%; max-height:100%; object-fit:contain; border-radius:2px; box-shadow:0 8px 32px rgba(0,0,0,.4); transition:transform .3s ease; }
/* 占位卡片：图像读取失败时的文字占位 */
.placeholder-card { background:var(--canvas-2); color:var(--canvas-fg); border-radius:var(--r-md); display:flex; align-items:center; justify-content:center; font-family:'Noto Serif SC',serif; font-size:32px; flex:none; }
.angle-chip {
  position:absolute; bottom:16px; left:50%; transform:translateX(-50%);
  background:var(--canvas-2); color:var(--canvas-fg);
  font-size:12px; padding:5px 12px; border-radius:999px; display:none;
}
.angle-chip.show { display:block; }
/* 空队列时的预览区引导 */
.preview-empty { text-align:center; color:var(--canvas-fg); }
.preview-empty .ic { font-size:56px; opacity:.35; display:block; margin-bottom:14px; font-style:normal; }
.preview-empty h3 { font-size:15px; font-weight:600; margin-bottom:8px; }
.preview-empty p { font-size:12px; opacity:.7; margin-bottom:16px; }

/* Toast */
.toast {
  position:absolute; top:56px; left:50%; transform:translateX(-50%) translateY(-8px);
  background:var(--success-bg); color:var(--success); border:1px solid var(--success);
  font-size:12px; padding:8px 16px; border-radius:var(--r-md); opacity:0;
  transition:opacity .25s, transform .25s; pointer-events:none; z-index:10;
}
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }

/* 工具面板 */
.tools { background:var(--card); border-left:1px solid var(--border); overflow-y:auto; height:100%; min-height:0; padding:14px; display:flex; flex-direction:column; gap:14px; }
.tool-card { border:1px solid var(--border); border-radius:var(--r-lg); padding:12px; background:var(--card); }
.tool-card h3 { font-size:13px; font-weight:600; margin-bottom:10px; }
.rotate-btns { display:grid; grid-template-columns:1fr 1fr 1fr; gap:8px; margin-bottom:12px; }
.rotate-btn {
  height:52px; border:1px solid var(--border); border-radius:var(--r-md); background:var(--card);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:4px;
  font-size:12px; color:var(--text-2); transition:border-color .15s, background-color .15s;
}
.rotate-btn:hover:not(:disabled) { border-color:var(--primary); background:var(--primary-tint); }
.rotate-btn .g { font-size:16px; }
.slider-row { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
input[type=range] { flex:1; accent-color:var(--primary); }
.slider-val { font-size:12px; color:var(--text-3); width:44px; text-align:right; font-variant-numeric:tabular-nums; }
.tool-actions { display:flex; gap:8px; }
.tool-actions .btn { flex:1; justify-content:center; }
.hint { font-size:11px; color:var(--caption); margin-top:8px; line-height:1.5; }
.info-list { font-size:12px; }
.info-list dl { display:grid; grid-template-columns:88px 1fr; row-gap:8px; margin:0; }
.info-list dt { color:var(--muted-fg); }
.info-list dd { color:var(--text-2); word-break:break-all; }

/* 状态栏 */
.statusbar {
  height:36px; flex:none; display:flex; align-items:center; gap:14px;
  padding:0 16px; background:var(--card); border-top:1px solid var(--border);
  font-size:12px; color:var(--text-3);
}
.statusbar b { color:var(--fg); font-weight:600; font-variant-numeric:tabular-nums; }
.dot { color:var(--border); }