:root{font-family:'Microsoft YaHei',system-ui,sans-serif;color:#47333d;background:#fff6f9;font-size:16px;--rose:#ad416b;--line:#eedce4;--soft:#fff0f5}*{box-sizing:border-box}body{margin:0;line-height:1.65}header{display:flex;justify-content:space-between;align-items:center;padding:18px max(24px,calc((100vw - 1120px)/2));background:#ffffffb8;border-bottom:1px solid var(--line)}header strong{font-family:serif;font-size:28px;letter-spacing:.16em;color:#913858}header span,small,.hint,#modeLabel{font-size:14px;color:#80616f}main{max-width:1120px;margin:32px auto;padding:0 24px}h1{font-size:30px;letter-spacing:.02em;margin:0;font-weight:600}h2{font-size:19px;margin:0}p{margin:10px 0}.intro{color:#80616f;margin-bottom:24px;max-width:600px}.workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,1fr);grid-template-areas:'preview uploads' 'preview controls';gap:18px;align-items:start}.preview,.controls,.uploads{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;min-width:0;box-shadow:0 8px 32px #9d466a06}.preview{grid-area:preview}.uploads{grid-area:uploads;display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px}.controls{grid-area:controls}.title{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}#sample{width:100%;border-radius:16px;display:block}canvas{width:100%;display:block;background:var(--soft);touch-action:none;border-radius:16px;cursor:crosshair}.upload-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:154px;margin:0;border:1px dashed #d8a6bb;border-radius:18px;padding:15px 8px;background:linear-gradient(145deg,#fff8fb,#ffeff5);overflow:hidden;text-align:center;cursor:pointer}.upload-card input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.upload-card:focus-within{outline:3px solid #c76b91;outline-offset:3px}.upload-card strong{font-size:16px;font-weight:600}.upload-card small{font-size:14px;line-height:1.5;margin-top:5px}.upload-icon{display:grid;place-items:center;color:var(--rose);font-size:28px;width:44px;height:44px;border-radius:50%;background:white;margin-bottom:8px}.upload-card img{width:100%;height:100px;object-fit:contain;border-radius:10px;margin-bottom:8px}.tools{display:grid;grid-template-columns:auto minmax(70px,1fr);gap:10px;align-items:center;margin:14px 0}.tools label{margin:0;font-size:14px}.tools input{width:100%;accent-color:var(--rose)}.tools button{font-size:14px;padding:10px 8px}.switch{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin:16px 0;background:var(--soft);border-radius:14px;padding:4px}.switch button{font-size:14px;padding:10px 4px;border:0;background:transparent;border-radius:10px;min-width:0}button,.button{font:inherit;background:white;border:1px solid #dfbdcc;border-radius:13px;color:#694054;padding:11px 14px;min-height:44px;cursor:pointer;display:inline-block;text-decoration:none}button[aria-pressed=true]{background:white;color:#9a335c;box-shadow:0 2px 8px #ad416b15}.primary{background:#ad416b;color:white;border:0;box-shadow:0 7px 18px #ad416b20;font-weight:600;letter-spacing:.04em}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid #c76b91;outline-offset:3px}label{display:block;margin:16px 0 6px;font-size:14px;font-weight:500}form>label:first-child{margin-top:0}input:not([type=checkbox]):not([type=range]):not([type=file]),textarea{font:inherit;font-size:16px;width:100%;border:1px solid var(--line);border-radius:13px;padding:12px;background:#fffbfd;color:#47333d}textarea{min-height:88px;resize:vertical}input::placeholder,textarea::placeholder{color:#a78695}small{display:block;margin-top:8px}.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;font-weight:400;line-height:1.65}.check input{width:18px;height:18px;margin:3px 0 0;flex:none;accent-color:var(--rose)}.primary{width:100%;margin-top:16px;min-height:52px}#status{background:var(--soft);border:1px solid #f5e1ea;border-radius:13px;padding:12px;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}footer{margin-top:24px;padding-bottom:30px;color:#80616f;font-size:14px}footer a{color:#99395e}summary{cursor:pointer;padding:12px 0}#download{margin-bottom:10px;width:100%;text-align:center;background:#fff0f5;border-color:#efcfdd}[hidden]{display:none!important}@media(max-width:760px){header{padding:15px 20px}header strong{font-size:24px}header span{font-size:14px}main{padding:0 16px;margin:22px auto}h1{font-size:25px;line-height:1.4}.intro{font-size:14px;line-height:1.75;margin:10px 0 20px}.workspace{grid-template-columns:minmax(0,1fr);grid-template-areas:'uploads' 'preview' 'controls';gap:16px}.uploads{padding:12px;border-radius:22px;gap:10px}.preview,.controls{padding:18px;border-radius:22px}.upload-card{min-height:148px}.title{gap:6px;margin-bottom:12px}#modeLabel{font-size:14px}#sample{max-height:210px;object-fit:contain}.hint{font-size:14px;line-height:1.7}.action-zone{position:sticky;bottom:0;padding:8px 0 max(8px,env(safe-area-inset-bottom));background:#fff;z-index:2}.action-zone .primary{margin-top:0}.controls{overflow:visible}footer{padding-bottom:24px}}@media(prefers-reduced-motion:no-preference){button,.button{transition:background .15s,box-shadow .15s}button:not(:disabled):active,.button:active{transform:translateY(1px)}}
:root .switch{grid-template-columns:repeat(2,minmax(0,1fr))}#previewImage{display:block;width:100%;max-height:640px;object-fit:contain;border-radius:16px;background:#fff6f9}#openResult,#share{width:100%;text-align:center;margin:0 0 10px}#checkPass{margin-top:10px}@media(max-width:760px){#previewImage{max-height:420px}}