/* Recast — 居中舞台 ＋ 底部控制条。
   整页一屏：顶栏、中间舞台（空 / 单张对比 / 批量网格三选一）、底部胶囊控制条。
   舞台只占中间一列，四周留白，控制条对当前所有图片生效。 */

body{height:100dvh;margin:0;display:flex;flex-direction:column;overflow:hidden;background:var(--bg);color:var(--text)}
body>header{flex:none;display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 24px;
  background:var(--bg);border-bottom:1px solid var(--border)}
body>header .brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-size:21px;font-weight:650;letter-spacing:-.01em}
body>header .brand-mark{width:23px;height:23px;color:var(--text);display:block;flex:none}
body>header .brand-sub{font:10px var(--mono);letter-spacing:2px;margin:5px 0 0 12px;color:var(--text-3)}
.header-right{display:flex;align-items:center;gap:8px}
.head-btn{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:7px 14px;border-radius:var(--r-pill);border:1px solid transparent;
  background:transparent;color:var(--text-2);cursor:pointer;white-space:nowrap;transition:background .15s,color .15s}
.head-btn:hover{background:var(--surface-3);color:var(--text);border-color:transparent}
#theme{padding:0;width:34px;height:34px;flex:none;display:grid;place-items:center;background:transparent;border-color:var(--border);color:var(--text-2)}
#theme svg{width:16px;height:16px}
#theme:hover{background:var(--surface-3);color:var(--text)}
[hidden]{display:none!important}

main{flex:1;min-height:0;display:flex;flex-direction:column;align-items:center;padding:32px 48px 0}
.centre{flex:1;min-height:0;width:100%;max-width:760px;display:flex;flex-direction:column}
.sp{flex:1}
button.ghost{background:transparent;border-color:transparent;color:var(--text-2);padding:6px 12px;font-size:13px;white-space:nowrap}
button.ghost:hover{background:var(--surface-3);color:var(--text);border-color:transparent}
button.icon{width:32px;height:32px;padding:0;display:grid;place-items:center;font-size:18px;line-height:1}
button.primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent);font-weight:600;white-space:nowrap}
button.primary:hover{background:var(--accent);border-color:var(--accent);opacity:.88}
button.primary:disabled{opacity:.35}

/* ── 空状态：拖放区。底色借用首页 Recast 封面的冷调网格渐变 ── */
.drop{flex:1;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;
  border-radius:var(--r-panel);cursor:pointer;font-size:14px;
  background:radial-gradient(90% 90% at 12% 8%,#b197fc40,transparent 60%),radial-gradient(90% 90% at 92% 95%,#96f2d740,transparent 60%),
    radial-gradient(70% 70% at 85% 10%,#a5d8ff40,transparent 62%),var(--surface);
  transition:box-shadow .18s}
/* 不画虚线框：悬停时图标浮起一点，键盘聚焦时给实色焦点环 */
.drop .glyph{transition:transform .18s,box-shadow .18s}
.drop:hover .glyph{transform:translateY(-2px);box-shadow:0 10px 22px -10px #0005,inset 0 0 0 1px var(--border)}
.drop:has(input:focus-visible){box-shadow:0 0 0 2px var(--text)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.drop .glyph{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--surface-2);
  box-shadow:0 6px 16px -8px #0004,inset 0 0 0 1px var(--border)}
.drop .glyph svg{width:24px;height:24px}
.drop b{font-size:16px;font-weight:600}
.drop small{color:var(--text-3);font-size:12.5px;line-height:1.7;padding:0 28px;text-wrap:balance}

/* ── 单张：前后对比 ── */
.single{flex:1;min-height:0;display:flex;flex-direction:column}
.single-bar{display:flex;align-items:center;gap:6px;min-height:32px;margin-bottom:10px}
.single-name{font:12.5px var(--mono);color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.cmp{--x:50%;position:relative;flex:1;min-height:0;border-radius:var(--r-panel);overflow:hidden;
  background:repeating-conic-gradient(var(--surface-3) 0 25%,var(--surface) 0 50%) 0 0/20px 20px}
.cmp img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-select:none}
.cmp .after{position:absolute;inset:0;clip-path:inset(0 0 0 var(--x))}
.cmp .line{position:absolute;top:0;bottom:0;left:var(--x);width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 10px #0006;pointer-events:none}
.cmp .line::after{content:"";position:absolute;top:50%;left:50%;width:30px;height:30px;margin:-15px;border-radius:50%;background:#fff;
  box-shadow:0 2px 8px #0005;-webkit-mask:none}
.cmp .tag{position:absolute;bottom:12px;max-width:calc(50% - 20px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font:600 11.5px/1 var(--mono);padding:7px 11px;border-radius:var(--r-pill);background:#0d0d0dcc;color:#fff;pointer-events:none}
.cmp .tag.l{left:12px}.cmp .tag.r{right:12px;background:#ffffffe6;color:#0d0d0d}
.cmp .tag.r.bad{background:#b42318;color:#fff}
.cmp input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;z-index:2}
.cmp.busy::before{content:"处理中…";position:absolute;top:12px;right:12px;z-index:1;font:600 11.5px/1 var(--mono);padding:7px 11px;
  border-radius:var(--r-pill);background:#ffffffe6;color:#0d0d0d}
.caption{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 4px 0;font-size:12.5px;color:var(--text-2)}
.caption #single-meta{font-family:var(--mono);font-size:12px}

/* ── 批量：缩略图网格 ── */
.batch{flex:1;min-height:0;display:flex;flex-direction:column}
.thumbs{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));
  gap:12px;align-content:start;padding:4px}
.th{position:relative;aspect-ratio:4/3;border-radius:var(--r-card);overflow:hidden;background:var(--surface-3)}
.th .open{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;border-radius:0;background:none;cursor:zoom-in}
.th .open:hover{background:none}
.th img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.th .pct{position:absolute;top:7px;left:7px;padding:3px 8px;border-radius:var(--r-pill);background:#ffffffe6;color:#087f5b;font:600 10.5px/1.2 var(--mono);pointer-events:none}
.th .pct.bad{background:#b42318;color:#fff}
.th .pct.kept{color:#5c5c5c}
.th .meta{position:absolute;left:6px;right:6px;bottom:6px;padding:4px 8px;border-radius:var(--r-pill);text-align:center;
  background:#ffffffd9;color:#0d0d0d;font:500 10.5px/1.25 var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none}
.th .st{position:absolute;top:7px;right:7px;width:20px;height:20px;border-radius:50%;background:#ffffffe6;display:grid;place-items:center;pointer-events:none}
.th .st.done::after{content:"";width:8px;height:4px;border-left:1.6px solid #087f5b;border-bottom:1.6px solid #087f5b;transform:translateY(-1px) rotate(-45deg)}
.th .st.busy::after,.th .st.queued::after{content:"";width:10px;height:10px;border-radius:50%;border:1.6px solid #0d0d0d33;border-top-color:#0d0d0d;animation:spin .9s linear infinite}
.th .st.queued::after{animation:none;border-top-color:#0d0d0d33}
.th .st.error{background:#b42318;color:#fff;font:700 11px/1 var(--sans)}.th .st.error::after{content:"!"}
/* 悬停才出现的移除按钮，放在状态图标的位置上 */
.th .rm{position:absolute;top:5px;right:5px;width:24px;height:24px;padding:0;border-radius:50%;display:grid;place-items:center;
  background:#0d0d0dcc;border:0;color:#fff;font-size:14px;line-height:1;opacity:0;transition:opacity .15s;z-index:1}
.th:hover .rm,.th:focus-within .rm{opacity:1}
.th:hover .st,.th:focus-within .st{opacity:0}
.th.add{display:grid;place-items:center;background:var(--surface);color:var(--text-3);font-size:12.5px;cursor:pointer;transition:background .15s,color .15s}
.th.add:hover{background:var(--surface-3);color:var(--text)}
.th.add:has(input:focus-visible){box-shadow:0 0 0 2px var(--text)}
.th.add input{position:absolute;inset:0;opacity:0;cursor:pointer}
@keyframes spin{to{transform:rotate(360deg)}}
.sum{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 4px 0;font-size:12.5px;color:var(--text-2)}
.totals{font:12px var(--mono)}
.totals b{color:var(--text);font-weight:600}
.totals .good{color:#087f5b}
:root[data-theme=dark] .totals .good{color:#63e6be}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .totals .good{color:#63e6be}}
.hint{color:var(--text-3)}

/* ── 底部控制条 ── */
.dock{flex:none;flex-wrap:wrap;justify-content:center;margin:22px 0 26px;display:flex;align-items:center;gap:16px;padding:9px 10px 9px 18px;border-radius:var(--r-pill);
  background:var(--surface);box-shadow:inset 0 0 0 1px var(--border),0 10px 30px -18px #0004;max-width:100%}
.grp{display:flex;align-items:center;gap:10px;font-size:13px}
.lab{font-size:11.5px;color:var(--text-3);white-space:nowrap}
.div{width:1px;height:22px;background:var(--border);flex:none}
.seg{display:inline-flex;padding:3px;gap:2px;border-radius:var(--r-pill);background:var(--surface-3)}
.seg button{padding:5px 11px;border:0;border-radius:var(--r-pill);background:transparent;color:var(--text-2);font-size:12.5px;white-space:nowrap}
.seg button:hover{background:transparent;color:var(--text)}
.seg button[aria-checked=true]{background:var(--surface-2);color:var(--text);box-shadow:0 1px 3px #0002}
.seg button:disabled{opacity:.35;cursor:not-allowed}
.seg.small button{padding:3px 12px}
.quality input{width:130px;margin:0;height:4px;accent-color:var(--accent);cursor:pointer}
.quality input:disabled{cursor:not-allowed;opacity:.4}
.quality output{font:12px var(--mono);min-width:26px;color:var(--text)}
.dock select{padding:6px 30px 6px 13px;font-size:12.5px;background:var(--surface-2)}
.select-row::after{right:12px}
.dock #download{padding:9px 18px}
.more-wrap{position:relative}
.more-panel{position:absolute;bottom:calc(100% + 14px);right:-10px;width:280px;padding:14px 16px;border-radius:var(--r-card);
  background:var(--surface-2);border:1px solid var(--border);box-shadow:0 12px 36px #0002;display:flex;flex-direction:column;gap:12px;z-index:10}
.more-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--text)}
.more-note{margin:0;font-size:11.5px;line-height:1.6;color:var(--text-3)}
/* 开关：复选框本身画成胶囊 */
.switch{appearance:none;-webkit-appearance:none;position:relative;width:32px;height:18px;margin:0;flex:none;border-radius:var(--r-pill);
  background:var(--surface-3);box-shadow:inset 0 0 0 1px var(--border-control);cursor:pointer;transition:background .15s}
.switch::after{content:"";position:absolute;left:3px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--text-3);transition:transform .18s,background .18s}
.switch:checked{background:var(--accent);box-shadow:none}
.switch:checked::after{transform:translateX(14px);background:var(--accent-fg)}

/* 整页拖入时的提示层 */
.veil{position:fixed;inset:12px;z-index:50;display:grid;place-items:center;border-radius:var(--r-panel);pointer-events:none;
  background:color-mix(in srgb,var(--bg) 70%,transparent);outline:2px dashed var(--text);outline-offset:-2px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);font-size:16px;font-weight:600}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:60;margin:0;padding:9px 16px;border-radius:var(--r-pill);
  background:var(--accent);color:var(--accent-fg);font-size:13px;box-shadow:0 8px 24px #0003;max-width:calc(100vw - 32px)}

/* ── 窄屏：舞台贴边，控制条折成两行 ── */
@media(max-width:760px){
  body>header{padding:0 16px}
  body>header .brand-sub{display:none}
  main{padding:16px 16px 0}
  .dock{flex-wrap:wrap;justify-content:center;gap:10px 12px;border-radius:24px;padding:12px;margin:14px 0 16px}
  .div{display:none}
  .quality input{width:110px}
  .thumbs{grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:10px}
  .hint{display:none}
  .more-panel{right:auto;left:50%;transform:translateX(-50%)}
}
@media(max-width:420px){
  .seg button{padding:5px 8px}
  .head-btn{padding:7px 10px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}.th .st.busy::after{animation:none}}