:root{color-scheme:light;--ink:#193d32;--muted:#68736d;--line:#dbe1d8;--paper:#f6f7f1;--accent:#d8ef9e}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
    .wrap{max-width:1200px;margin:auto;padding:0 40px}header{height:88px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:12px}.mark{width:32px;height:32px;display:grid;place-items:center;background:var(--ink);color:var(--accent);border-radius:9px}.brand{font-size:16px;font-weight:650;letter-spacing:.03em}.small-label{margin-left:auto;color:var(--muted);font-size:11px;letter-spacing:.16em}
    .hero{padding:68px 0 44px;position:relative}.eyebrow{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.15em;font-weight:600}.dot{width:7px;height:7px;border-radius:50%;background:#79984b}h1{font-size:clamp(36px,5vw,62px);line-height:1.25;letter-spacing:-.045em;margin:23px 0 20px;font-weight:650}h1 span{display:inline-block;background:var(--accent);padding:0 8px 5px;border-radius:4px}.intro{color:var(--muted);font-size:17px;line-height:1.9;margin:0;max-width:700px}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin:0 0 48px}.benefit{border-top:1px solid var(--line);padding-top:22px;display:flex;gap:14px}.number{color:#84927f;font-family:monospace;font-size:12px;line-height:26px}.benefit h2{font-size:16px;margin:0 0 9px;font-weight:600}.benefit p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}
    .studio{background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 8px 32px #193d3205}.studio-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:23px 28px;border-bottom:1px solid #e8ece5}.studio-head h2{font-size:18px;margin:0;font-weight:600}.studio-head p{font-size:12px;margin:6px 0 0;color:var(--muted)}.powered{font-size:10px;color:var(--muted);letter-spacing:.08em;white-space:nowrap}footer{padding:25px 0 32px;color:var(--muted);font-size:11px;display:flex;justify-content:space-between;gap:16px}
    @media(max-width:640px){.wrap{padding:0 20px}header{height:72px}.brand{font-size:14px}.small-label{display:none}.hero{padding:42px 0 32px}h1{font-size:38px}.intro{font-size:15px}.benefits{grid-template-columns:1fr;gap:20px;margin-bottom:32px}.benefit{padding-top:16px}.benefit h2{margin-bottom:5px}.studio-head{padding:20px 18px;align-items:flex-start}.powered{font-size:9px;padding-top:4px}.studio-head p{max-width:210px;line-height:1.6}.studio{border-radius:12px}footer{font-size:10px}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
  
[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.workspace{display:grid;grid-template-columns:350px minmax(0,1fr)}form{padding:28px;border-right:1px solid var(--line)}fieldset{border:0;padding:0;margin:0;min-width:0}label,.field-heading{font-size:13px;font-weight:600}.field-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px}.field-heading>span:last-child{font-size:10px;letter-spacing:.08em;color:var(--muted);font-weight:400}.upload{position:relative;min-height:210px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px dashed #bccbb7;background:#f8faf5;border-radius:10px;cursor:pointer;overflow:hidden;transition:border-color .15s}.upload:hover,.upload:focus-within{border-color:var(--ink);background:#f0f5e8}.upload:focus-within{outline:2px solid var(--ink);outline-offset:3px}.upload input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:2}.upload img{width:100%;height:210px;object-fit:contain;padding:12px 12px 32px}.upload #replace-label{position:absolute;bottom:10px;background:#fffC;border-radius:12px;padding:4px 12px;font-size:11px;font-weight:400}#upload-prompt{display:flex;flex-direction:column;align-items:center;gap:12px;color:#69825c}#upload-prompt strong{font-size:14px;color:var(--ink)}#upload-prompt span{font-size:11px;color:var(--muted);font-weight:400}.help{font-size:11px;line-height:1.7;color:var(--muted);margin:10px 0 0}.file-status{font-size:11px;line-height:1.7;color:#52783b;word-break:break-word;margin:5px 0 0;min-height:18px}.settings-heading{margin-top:25px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:17px}.form-row>div{min-width:0}select{display:block;width:100%;margin-top:8px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:7px;min-height:45px;padding:10px;font:inherit;font-size:13px}button,select{font-family:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid #577f39;outline-offset:3px}.generate{display:flex;justify-content:space-between;align-items:center;width:100%;margin-top:25px;border:0;border-radius:7px;background:var(--ink);color:white;font-size:14px;padding:16px 18px;font-weight:600}.generate:disabled{opacity:.45;cursor:not-allowed}.generate:not(:disabled):hover{background:#285540}.time-help{text-align:center}fieldset:disabled .upload{cursor:wait}.output{padding:28px;min-width:0;background:#fdfefb}.output-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.output-head h3{margin:0;font-size:14px;font-weight:600}.output-head>span{font-size:11px;color:var(--muted)}.empty-state{min-height:480px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.empty-state h4{font-size:19px;font-weight:500;margin:28px 0 10px}.empty-state p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}.empty-art{height:96px;width:150px;position:relative}.empty-art>div{position:absolute;width:66px;height:84px;border:1px solid #cdd8c3;border-radius:7px;background:#f6f9ef;left:10px;top:8px;transform:rotate(-15deg)}.empty-art>div:nth-child(2){left:72px;transform:rotate(16deg);top:7px;background:#eaf2df}.empty-art>div:nth-child(3){left:42px;top:0;transform:rotate(0deg);background:#d8ef9e}.empty-art>div:nth-child(3):after{content:'';position:absolute;width:25px;height:35px;border-radius:6px 6px 4px 4px;background:#94ae70;left:20px;top:24px}.progress{margin:26px 0;padding:24px;background:#f2f6eb;border-radius:10px;border:1px solid #e1e9d7}.progress-top{display:flex;align-items:center;gap:12px}.progress h4{font-size:15px;font-weight:600;margin:0}.progress-top p{font-size:11px;color:var(--muted);margin:7px 0 0}.spinner{display:block;width:25px;height:25px;border:2px solid #cfdbbf;border-top-color:var(--ink);border-radius:50%;animation:spin 1s linear infinite;flex-shrink:0}#steps{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;list-style:none;padding:0;margin:27px 0 20px}#steps li{font-size:10px;color:#7d8975;border-top:3px solid #dde5d4;padding-top:9px}#steps li.active{color:var(--ink);border-color:#71954e;font-weight:600}#steps li.done{color:#4f7139;border-color:#b2cd8e}#progress-message{font-size:13px;line-height:1.8;margin:0}.notice{font-size:13px;line-height:1.7;padding:13px 15px;border-radius:8px;background:#f4f4e5;color:#66602e}.error{background:#fdf0eb;color:#983d28}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}.image-card{margin:0;border:1px solid var(--line);background:white;border-radius:10px;overflow:hidden;min-width:0}.image-card img{display:block;width:100%;height:auto;aspect-ratio:var(--image-ratio,1);object-fit:contain;background:#f1f3ed}.image-card figcaption{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:14px 12px;font-size:11px;color:var(--muted)}.download{border:1px solid var(--line);border-radius:5px;color:var(--ink);text-decoration:none;padding:7px 10px;white-space:nowrap;font-size:11px}.download:hover{background:var(--paper)}.image-failure{padding:20px;font-size:12px;line-height:1.8;color:#983d28}.studio-head p{max-width:none}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:900px){.workspace{grid-template-columns:300px minmax(0,1fr)}form,.output{padding:22px}.gallery{gap:12px}.image-card figcaption{flex-wrap:wrap}}@media(max-width:700px){.workspace{grid-template-columns:1fr}form{border-right:0;border-bottom:1px solid var(--line)}.output{min-height:360px}.empty-state{min-height:310px}.upload{min-height:190px}.studio-head .powered{display:none}.gallery{gap:12px}#steps li{font-size:10px}.progress{padding:18px}.wrap{padding:0 20px}}@media(prefers-reduced-motion:reduce){.spinner{animation:none}.upload{transition:none}}