:root{--bg:#f5f5f8;--surface:#fff;--ink:#262436;--muted:#777583;--line:#e9e7ef;--accent:#6849de;--soft:#f1edfc;--radius:16px;font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);font-size:14px;line-height:1.6;color-scheme:light}
*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden}body{display:flex;flex-direction:column;background:var(--bg)}button,input,select{font:inherit}button{cursor:pointer}button,input,select,summary{touch-action:manipulation}button{transition:background .15s,border-color .15s}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #bba6f5;outline-offset:3px}[hidden]{display:none!important}button:not(:disabled):active{transform:translateY(1px)}
.topbar{height:68px;flex:0 0 68px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;background:var(--surface);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:650;font-size:17px}.brand-icon{height:34px;width:34px;border-radius:10px;background:var(--accent);color:white;display:grid;place-items:center;font-size:27px;font-weight:400}.header-actions{display:flex;align-items:center;gap:24px}.connection{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}.connection:before{content:"";width:6px;height:6px;border-radius:50%;background:#aaa5b6}.connection.online:before{background:#4b8c76}.connection.offline:before{background:#b78447}.text-button{border:0;background:none;padding:8px 0;color:var(--muted);font-size:13px}.text-button:hover:not(:disabled){color:var(--accent)}main{flex:1;min-height:0;overflow:auto;padding:32px 40px 48px;scrollbar-gutter:stable}.page-top{max-width:1240px;margin:0 auto 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.task-tabs{display:flex;gap:4px;padding:4px;background:#eae9f0;border-radius:12px}.task-tabs button{border:0;background:transparent;color:#767080;padding:10px 26px;border-radius:9px;font-weight:600;font-size:15px}.task-tabs button.active{background:white;color:var(--ink);box-shadow:0 2px 5px #20103408}.local-note{color:var(--muted);font-size:12px}.workspace{max-width:1240px;margin:auto;display:grid;grid-template-columns:minmax(0,1fr) 304px;background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 30px #29203a03}.stage{min-width:0;display:flex;flex-direction:column}.stage-toolbar{min-height:68px;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 28px;border-bottom:1px solid var(--line)}.file-info{min-width:0;display:flex;align-items:center;gap:12px}.file-info strong{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-info>span{font-size:11px;color:var(--muted);white-space:nowrap}.stage-toolbar>button{white-space:nowrap}.image-surface{position:relative;display:flex;align-items:center;justify-content:center;flex:1;min-height:500px;padding:28px;background:#fbfbfd;transition:background .15s}.image-surface.dragging{background:var(--soft);outline:2px dashed var(--accent);outline-offset:-10px}.image-surface.dragging>*{pointer-events:none}.empty-state{text-align:center;width:100%;padding:12px 0}.upload-symbol{width:58px;height:58px;border-radius:17px;background:var(--soft);color:var(--accent);font-size:32px;display:grid;place-items:center;margin:0 auto 20px;font-weight:300}.empty-state h1{font-size:22px;margin:0 0 6px;font-weight:600}.empty-state p{color:var(--muted);font-size:13px;margin:0 0 24px}.empty-state>.secondary{width:auto;min-width:132px;background:white}.empty-state>small{display:block;color:var(--muted);font-size:11px;margin-top:12px}.example-section{margin:36px auto 0;border-top:1px solid var(--line);padding-top:20px;width:260px}.example-section>span{font-size:12px;color:var(--muted)}.examples{display:flex;justify-content:center;gap:12px;margin-top:12px}.example{border:1px solid var(--line);border-radius:10px;padding:3px;background:white;width:64px;height:64px;overflow:hidden}.example:hover{border-color:var(--accent)}.example img{width:100%;height:100%;object-fit:cover;border-radius:6px}.image-frame{position:relative;width:100%;max-width:560px;aspect-ratio:1;overflow:hidden;border-radius:8px;background:#eae8ef}.image-frame>img,.after-layer,.after-layer>img,canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.after-layer{clip-path:inset(0 0 0 50%)}.image-label{position:absolute;top:14px;padding:4px 9px;background:#242032b3;border-radius:5px;color:white;font-size:11px;pointer-events:none}.left-label{left:14px}.right-label{right:14px}.slider-line{position:absolute;top:0;bottom:0;left:50%;width:2px;background:white;pointer-events:none}.slider-line span{position:absolute;top:50%;left:1px;transform:translate(-50%,-50%);width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:white;box-shadow:0 2px 12px #201a3633;font-size:20px}#compare-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;touch-action:pan-y}.image-frame:focus-within{outline:3px solid #bba6f5;outline-offset:4px}.viewer-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 24px;border-top:1px solid var(--line)}.preview-note{color:var(--muted);font-size:12px}.view-buttons{display:flex;gap:4px}.view-buttons button{border:0;background:none;color:var(--muted);padding:7px 9px;border-radius:6px;font-size:12px;white-space:nowrap}.view-buttons button.active{background:var(--soft);color:var(--accent)}.panel{border-left:1px solid var(--line);padding:28px;display:flex;flex-direction:column;min-width:0}h2{font-size:17px;font-weight:600;margin:0 0 24px}.field-label{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}select{width:100%;border:1px solid #dcd9e5;border-radius:9px;padding:11px 12px;background:white;color:var(--ink)}details{border-top:1px solid var(--line);margin-top:20px;padding-top:14px}summary{cursor:pointer;font-size:12px;color:var(--muted);padding:4px 0}details p{font-size:12px;color:var(--muted);line-height:1.8}.strength-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;font-size:13px}input[type=number]{width:82px;border:1px solid #dcd9e5;border-radius:6px;padding:6px 8px}.primary,.secondary{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;border-radius:9px;font-size:14px;font-weight:500;padding:12px 16px;min-height:46px}.primary{background:var(--accent);color:white;border:1px solid var(--accent)}.primary:hover:not(:disabled){background:#593cc9}.secondary{background:white;color:#55466f;border:1px solid #ded8eb}.secondary:hover:not(:disabled){background:#f9f7fd}.run-area{margin-top:auto;padding-top:32px}.run-area p{margin:10px 0 0;text-align:center;font-size:12px;color:var(--muted)}.result-symbol{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#edf5f0;color:#398060;font-size:22px;margin-bottom:18px}.result-symbol.neutral{background:var(--soft);color:var(--accent)}.result-symbol.warning{background:#fff4e5;color:#9c722a}.result-panel h2{font-size:20px;line-height:1.5;margin:0 0 6px;outline:none}.result-panel>p{font-size:12px;color:var(--muted);margin:6px 0}.result-panel .stale-note{color:#946a29;background:#fff6e8;border-radius:5px;padding:6px 9px;margin-top:12px}.result-actions{display:grid;gap:10px;margin-top:24px}.result-panel>.text-button{display:block;text-align:left;margin-top:8px}.result-panel dl{margin:14px 0}.result-panel dl>div{display:flex;justify-content:space-between;gap:10px;margin:9px 0;font-size:12px}.result-panel dt{color:var(--muted)}.result-panel dd{margin:0;font-variant-numeric:tabular-nums}.detail-note{font-size:11px!important;color:var(--muted);line-height:1.8}.result-panel>#expiry-note{margin-top:18px}.status-panel,.service-panel{margin-top:24px;padding:16px;background:#f6f4fa;border-radius:10px;font-size:13px}.status-panel strong,.service-panel strong{font-weight:500}.status-panel p,.service-panel p{font-size:12px;color:var(--muted);margin:5px 0 0;overflow-wrap:anywhere}.status-panel.error{background:#fff3ed}.spinner{display:block;width:20px;height:20px;border:2px solid #dfd7f4;border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite;margin-bottom:10px}@keyframes spin{to{transform:rotate(360deg)}}.inline-error{color:#a14633;background:#fff4ee;padding:12px 24px;font-size:13px}dialog{width:calc(100% - 40px);max-width:480px;border:1px solid var(--line);border-radius:16px;padding:28px;color:var(--ink);box-shadow:0 20px 80px #20163022}dialog::backdrop{background:#23203466}.dialog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.dialog-heading h2{margin:0}dialog p{font-size:13px;color:var(--muted);line-height:1.9}
.empty-state>.secondary{margin-left:auto;margin-right:auto}.method-details p{white-space:pre-line}#settings-panel:not([hidden])+.result-panel{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
@media(min-width:1450px){main{padding-top:40px}.page-top{margin-bottom:28px}.image-surface{min-height:560px}}
@media(max-width:1000px){main{padding:24px}.workspace{grid-template-columns:minmax(0,1fr) 270px}.panel{padding:22px}.image-surface{min-height:450px;padding:20px}.file-info{flex-direction:column;align-items:flex-start;gap:0}.file-info strong{max-width:100%}.stage-toolbar{padding:12px 20px}.viewer-footer{padding:14px 20px}.local-note{display:none}}
@media(max-width:700px){.topbar{height:60px;flex-basis:60px;padding:0 18px}.brand{font-size:15px}.header-actions{gap:14px}.connection{font-size:11px}.header-actions .text-button{font-size:12px}main{padding:20px 14px 28px}.page-top{margin-bottom:18px}.task-tabs{width:100%}.task-tabs button{flex:1;padding:10px 16px}.workspace{display:flex;flex-direction:column;border-radius:12px}.image-surface{min-height:360px;padding:18px}.empty-state{padding:12px 0}.empty-state h1{font-size:20px}.example-section{margin-top:24px;padding-top:16px}.panel{border-left:0;border-top:1px solid var(--line);padding:22px}.panel h2{margin-bottom:16px}.panel .result-panel h2{margin-bottom:6px}.stage-toolbar{min-height:60px;padding:12px 18px}.viewer-footer{padding:12px 18px;justify-content:center}.preview-note{text-align:center;width:100%}.view-buttons{justify-content:center}.run-area{padding-top:22px;position:sticky;bottom:-1px;background:white;padding-bottom:10px;z-index:2}.result-symbol{margin-bottom:12px}.result-actions{margin-top:20px}.result-panel>.text-button{display:inline-block;margin-right:16px}.image-frame{max-width:480px}}
@media(min-width:701px){.image-surface{min-height:clamp(320px,calc(100dvh - 360px),560px)}.image-frame{max-width:min(560px,max(260px,calc(100dvh - 416px)))}}
@media(max-width:360px){.topbar{padding:0 12px}.header-actions{gap:10px}.brand{font-size:14px;gap:7px}.brand-icon{width:28px;height:28px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.spinner{animation:none}}

/* Text actions must be recognizable without a hover interaction. */
.text-button {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
.result-panel > :is(#edit-settings, #other-method, #next-image, #back-embed) {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  margin: 10px 0 0;
  padding: 10px 14px;
  border: 1px solid #d9d0ec;
  border-radius: 9px;
  background: #f8f5ff;
  color: #594293;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
}
.result-panel > :is(#edit-settings, #other-method, #next-image, #back-embed):hover:not(:disabled) {
  background: var(--soft);
  border-color: #b9a7dd;
  color: #4d338b;
}
.result-panel > #back-embed {
  background: white;
}