:root{--paper:#f7f4ec;--panel:#fffdf7;--ink:#29332e;--muted:#6e766f;--line:#d9dcd0;--green:#36664d;--green-soft:#e6eddf;--accent:#de785c;--shadow:#bcc3b3;--viewer:#ecefe4;--white:#fffdf7;--error:#b24636;font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none;color:var(--ink);background:var(--paper);font-size:14px;line-height:1.55;color-scheme:light}
:root[data-theme=dark]{--paper:#202724;--panel:#29312c;--ink:#edf0e4;--muted:#a9b5a7;--line:#475247;--green:#afd0a5;--green-soft:#374738;--accent:#f0a17f;--shadow:#101913;--viewer:#252e29;--white:#253129;--error:#ffab94;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,select{font:inherit}button,a,input,select,label{-webkit-tap-highlight-color:transparent}button,a,select{touch-action:manipulation}button{cursor:pointer;color:inherit}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit;text-decoration:none}button,a,select,input,.dropzone{outline-offset:5px}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,.dropzone:focus-visible{outline:3px solid var(--accent)}button{border:0;background:none}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.sprite{display:none}[hidden]{display:none!important}.wrap{max-width:1380px;padding-left:48px;padding-right:48px;margin:0 auto}.paper-grain{position:fixed;inset:0;pointer-events:none;z-index:8;opacity:.022;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23000' filter='url(%23n)' opacity='.5' d='M0 0h160v160H0z'/%3E%3C/svg%3E")}.topbar{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:800;letter-spacing:-.8px;line-height:1.2}.brand-icon{width:43px;height:43px;display:grid;place-items:center;border:1.6px solid var(--ink);border-radius:11px 9px 12px 7px;box-shadow:2px 2px 0 var(--ink);transform:rotate(-4deg);background:var(--green-soft)}.brand-icon svg{width:29px;height:29px}.brand-sub{font-size:10px;letter-spacing:3.2px;font-weight:500;display:block;margin-top:5px}.header-right{display:flex;align-items:center;gap:23px}.guide-link{font-size:13px}.small-button{border:1px solid var(--ink);border-radius:5px 7px 4px 6px;padding:5px 12px;font-size:12px;font-weight:650;box-shadow:2px 2px var(--line)}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:6px}.icon-button:hover{background:var(--green-soft)}.hero{display:flex;justify-content:space-between;gap:30px;align-items:center;padding:47px 0 40px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:600;display:flex;align-items:center;gap:9px;color:var(--green)}.tiny-star{font-size:23px;line-height:1}.edition{font:10px ui-monospace,monospace;letter-spacing:1px;border-left:1px solid var(--line);padding-left:12px;margin-left:4px;color:var(--muted)}h1{font-size:38px;font-weight:750;letter-spacing:-1.3px;line-height:1.55;margin:12px 0 13px}.mobile-br{display:none}.underlined{position:relative;margin-left:12px;white-space:nowrap}.underlined:after{content:'';position:absolute;bottom:-5px;left:0;width:100%;height:7px;border-top:3px solid var(--accent);border-radius:50%;transform:rotate(-1.5deg)}.hero p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}.engine-badge{display:flex;align-items:center;gap:13px;border:1px dashed var(--muted);border-radius:4px;padding:17px 21px;transform:rotate(2deg);position:relative;min-width:205px}.engine-badge b{font-size:12px;letter-spacing:2px;display:block}.engine-badge div>span{font-size:10px;display:block;color:var(--muted);margin-top:3px}.engine-symbol{font-weight:800;font-size:29px;line-height:1;letter-spacing:-4px}.engine-symbol span{font-size:12px;letter-spacing:-.5px}.badge-star{position:absolute;right:6px;top:-15px;background:var(--paper);font-size:23px}.studio{display:grid;grid-template-columns:330px minmax(0,1fr);gap:24px;align-items:start}.input-panel{padding:23px;background:var(--panel);border:1.5px solid var(--ink);border-radius:7px 11px 6px 10px;box-shadow:4px 4px 0 var(--shadow)}.section-title{display:flex;align-items:center;gap:9px}.section-title h2{font-size:14px;font-weight:650;margin:0}.step-num{font-family:ui-monospace,monospace;font-size:11px;border:1px solid var(--ink);border-radius:50%;width:25px;height:25px;display:grid;place-items:center}.margin-note{font-family:ui-monospace,monospace;font-size:9px;letter-spacing:1px;color:var(--muted)}.section-title .margin-note{margin-left:auto}.dropzone{display:block;position:relative;height:206px;margin-top:21px;border:1.5px dashed var(--muted);border-radius:6px 4px 7px 4px;cursor:pointer;background:var(--paper);transition:background .2s,border .2s}.dropzone.dragging,.dropzone:hover{background:var(--green-soft);border-color:var(--green)}#imageInput{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}#uploadEmpty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}#uploadEmpty strong{font-size:13px;font-weight:600}#uploadEmpty>span{font-size:11px;color:var(--muted)}#uploadEmpty small{font-size:9px;font-family:ui-monospace,monospace;margin-top:9px;color:var(--muted);letter-spacing:.5px}.image-sketch{position:relative;margin-bottom:7px;transform:rotate(-5deg)}.image-sketch svg{width:43px;height:43px;stroke-width:1.1}.image-sketch span{position:absolute;font-size:18px;right:-6px;top:-10px;color:var(--accent)}#uploadPreview{height:100%;display:flex;align-items:center;justify-content:center;background-image:repeating-conic-gradient(var(--line) 0% 25%,transparent 0% 50%);background-size:14px 14px;border-radius:5px;overflow:hidden}#thumbnail{height:100%;width:100%;object-fit:contain}.replace-pill{position:absolute;bottom:10px;border:1px solid var(--line);background:var(--panel);padding:3px 9px;border-radius:20px;font-size:10px}.file-info{display:flex;align-items:center;gap:10px;margin:9px 0 18px;color:var(--muted);font-size:10px;min-height:18px}#filename{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.text-button{text-decoration:underline;padding:0;font-size:11px;flex-shrink:0}.settings-title{display:flex;gap:12px;align-items:center;margin:22px 0 14px;font-size:11px;font-weight:600}.line{height:1px;background:var(--line);flex:1}.settings-title>span:last-child{font-size:17px}.setting{display:flex;align-items:center;justify-content:space-between;margin-bottom:11px;gap:12px}.setting>label{font-size:12px;color:var(--muted)}select,.seed-field{width:153px;border:1px solid var(--line);border-radius:5px;background:var(--paper);height:35px}select{padding:0 10px;color:var(--ink);font-size:11px}.seed-field{display:flex;align-items:center}.seed-field input{width:110px;min-width:0;border:0;background:none;padding:6px 10px;color:var(--ink);font-size:11px}.seed-field .icon-button{width:32px;height:30px;font-size:20px;color:var(--green)}.setting-note{font-size:10px;color:var(--muted);line-height:1.8;margin:12px 0 20px}.primary-button{width:100%;padding:12px;display:flex;align-items:center;justify-content:center;gap:9px;background:var(--green);color:var(--paper);border:1.5px solid var(--ink);border-radius:5px 8px 6px 4px;box-shadow:3px 3px 0 var(--ink);font-size:13px;font-weight:650;transition:transform .15s,box-shadow .15s}.primary-button:not(:disabled):hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--ink)}.primary-button svg{width:19px;height:19px}.primary-button .button-arrow{margin-left:auto}.primary-button>svg:first-child{margin-right:auto}.privacy-note{font-size:10px;display:flex;align-items:center;justify-content:center;gap:5px;color:var(--muted);margin:13px 0 18px}.tip-card{display:flex;gap:10px;background:var(--green-soft);border-radius:3px 7px 5px 4px;padding:12px 12px 10px;transform:rotate(-.5deg)}.tip-pin{font-size:21px;color:var(--green)}.tip-card b{font-size:10px;font-weight:650}.tip-card p{font-size:10px;line-height:1.8;color:var(--muted);margin:4px 0}.output-panel{min-width:0}.viewer-toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;height:42px;padding:0 2px 12px}.status-pill{font-size:10px;border:1px solid var(--line);border-radius:30px;padding:4px 9px;display:flex;align-items:center;gap:6px;white-space:nowrap}.status-pill i{height:6px;width:6px;background:var(--accent);border-radius:50%}.status-pill.ready i{background:var(--green)}.viewport{height:461px;position:relative;border:1.5px solid var(--ink);border-radius:7px 5px 9px 6px;overflow:hidden;isolation:isolate;background-color:var(--viewer);background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:28px 28px;box-shadow:4px 4px var(--shadow)}.viewport:before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 0%,var(--viewer) 83%);z-index:0;pointer-events:none}.viewport canvas{width:100%;height:100%;position:absolute;inset:0;z-index:1;touch-action:none}.viewport-label{position:absolute;top:18px;left:20px;font:9px ui-monospace,monospace;letter-spacing:1.7px;color:var(--muted);z-index:2;pointer-events:none}.corner-mark{position:absolute;width:8px;height:8px;border-color:var(--muted);z-index:2;pointer-events:none}.tl{top:10px;left:10px;border-top:1px solid;border-left:1px solid}.tr{top:10px;right:10px;border-top:1px solid;border-right:1px solid}.bl{bottom:10px;left:10px;border-bottom:1px solid;border-left:1px solid}.br{bottom:10px;right:10px;border-bottom:1px solid;border-right:1px solid}.empty-overlay{position:absolute;bottom:84px;left:20px;right:20px;text-align:center;z-index:2;pointer-events:none}.specimen-label{display:block;font-size:14px;font-weight:550;letter-spacing:1px}.specimen-caption{display:block;font-size:11px;color:var(--muted);margin-top:6px}.viewport-bottom{display:flex;align-items:center;gap:12px;position:absolute;bottom:17px;left:20px;right:20px;z-index:3;font-size:9px;color:var(--muted)}.axis-indicator{display:flex;gap:4px;font:8px ui-monospace,monospace;border:1px solid var(--line);background:var(--panel);border-radius:3px;padding:3px 5px}.axis-indicator b:nth-child(1){color:var(--accent)}.axis-indicator b:nth-child(2){color:var(--green)}.view-actions{margin-left:auto;display:flex;gap:6px;align-items:center}.mini-button{font-size:9px;border:1px solid var(--line);background:var(--panel);padding:5px 9px;border-radius:4px}.mini-button.active{border-color:var(--green);color:var(--green)}.view-actions .icon-button{width:26px;height:26px;background:var(--panel);border:1px solid var(--line)}.view-actions svg{width:14px;height:14px}.result-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;background:var(--panel);border:1px solid var(--line);border-radius:5px 7px 5px 6px;margin-top:19px;padding:18px}.result-label{display:block;color:var(--muted);font-size:10px;margin-bottom:3px}.result-bar strong{font-size:13px;font-weight:600;display:block}.model-stats{font:9px ui-monospace,monospace;color:var(--muted);display:block;margin-top:5px}.download-button{display:flex;gap:7px;align-items:center;border:1px solid var(--ink);border-radius:4px 7px 5px 4px;padding:10px 15px;font-size:11px;background:var(--paper);box-shadow:2px 2px var(--line);white-space:nowrap}.download-button svg{width:16px;height:16px}.download-button.disabled{opacity:.45;pointer-events:none}.output-footnote{display:flex;gap:8px;align-items:flex-start;margin:13px 5px 0;color:var(--muted);font-size:10px;line-height:1.8}.output-footnote>span:first-child{font-size:20px}.progress-card{position:absolute;z-index:4;bottom:65px;left:25px;right:25px;padding:18px;border:1px solid var(--ink);border-radius:7px;background:var(--panel);box-shadow:3px 3px var(--shadow)}.progress-top{display:flex;align-items:center;gap:9px;font-size:12px}.progress-top #elapsed{font:10px ui-monospace,monospace;margin-left:auto;color:var(--muted)}.spinner{display:inline-block;width:13px;height:13px;border:2px solid var(--line);border-top-color:var(--green);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.stage-track{display:flex;gap:5px;margin:13px 0 8px}.stage-track span{height:4px;background:var(--line);flex:1;border-radius:3px}.stage-track span.done{background:var(--green)}.stage-track span.current{background:var(--accent)}.progress-card p{font-size:10px;color:var(--muted);margin:0;line-height:1.7}.viewer-error{position:absolute;z-index:4;left:30px;right:30px;top:70px;padding:14px;background:var(--panel);border:1px solid var(--accent);border-radius:7px;font-size:12px}.history-section{margin-top:36px}.history-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.history-heading h2{font-size:14px;font-weight:600;display:flex;align-items:center;gap:10px;margin:0}.history-heading h2>span:first-child{font:11px ui-monospace,monospace;color:var(--muted)}.history-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.history-empty{grid-column:1/-1;border:1px dashed var(--line);border-radius:6px;padding:24px;text-align:center;font-size:11px;color:var(--muted)}.history-card{border:1px solid var(--line);border-radius:6px;padding:10px;background:var(--panel);position:relative}.history-card.selected{border-color:var(--green);box-shadow:2px 2px var(--shadow)}.history-open{width:100%;display:flex;text-align:left;align-items:center;gap:12px;padding:0}.history-open img{width:56px;height:56px;border:1px solid var(--line);border-radius:4px;object-fit:contain;background:var(--paper)}.history-open b{display:block;font:11px ui-monospace,monospace}.history-open small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.history-delete{position:absolute;right:5px;top:1px;font-size:16px;color:var(--muted);padding:2px 5px}.guide-section{margin:44px 0;padding:30px 0 0;border-top:1px solid var(--line);display:grid;grid-template-columns:255px 1fr;gap:35px}.guide-heading .eyebrow{font:9px ui-monospace,monospace;letter-spacing:1.4px}.guide-heading h2{font-size:21px;letter-spacing:-.5px;margin:10px 0}.guide-heading p{font-size:11px;color:var(--muted)}.guide-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:27px}.guide-number{font:11px ui-monospace,monospace;color:var(--accent)}.guide-cards h3{font-size:12px;margin:10px 0}.guide-cards p{font-size:11px;color:var(--muted);line-height:1.9;margin:0}.footer{border-top:1px solid var(--line);padding-top:22px;padding-bottom:28px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:10px;color:var(--muted)}.footer-brand{font-weight:650;font-size:12px;color:var(--ink)}.footer-brand span{font-weight:400;color:var(--muted);padding:0 4px}.footer-mark{font:8px ui-monospace,monospace;letter-spacing:1px}.toast{position:fixed;z-index:20;left:50%;transform:translateX(-50%);bottom:25px;max-width:min(540px,90vw);padding:14px 22px;background:var(--panel);border:1.5px solid var(--accent);border-radius:8px;box-shadow:4px 4px var(--shadow);font-size:13px}.toast.success{border-color:var(--green)}
@media(min-width:1400px){.viewport{height:473px}.input-panel{padding:25px}}@media(max-width:1080px){.wrap{padding-left:28px;padding-right:28px}.studio{grid-template-columns:300px minmax(0,1fr);gap:20px}.input-panel{padding:20px}.hero h1{font-size:31px}.engine-badge{min-width:180px;padding:15px}.viewport{height:461px}.guide-section{grid-template-columns:210px 1fr;gap:20px}.guide-cards{gap:18px}.history-list{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-mark{display:none}}@media(max-width:820px){.hero{padding:32px 0}.engine-badge{display:none}.studio{grid-template-columns:275px minmax(0,1fr);gap:18px}.input-panel{padding:17px}.section-title h2{font-size:12px}.viewer-toolbar{align-items:flex-start}.status-pill{font-size:8px;padding:3px 6px}.viewport-bottom>span:nth-child(2){display:none}.viewport{height:455px}.result-bar{align-items:flex-start;flex-direction:column;gap:12px;padding:13px}.result-bar strong{font-size:12px}.download-button{width:100%;justify-content:center}.guide-section{display:block}.guide-cards{margin-top:25px}.history-list{grid-template-columns:repeat(2,minmax(0,1fr))}.progress-card{left:15px;right:15px;padding:13px}}@media(max-width:620px){.wrap{padding-left:20px;padding-right:20px}.topbar{height:80px}.brand{font-size:21px}.brand-icon{height:37px;width:37px}.brand-sub{font-size:8px;letter-spacing:3px}.header-right{gap:12px}.guide-link{display:none}.hero{padding:30px 0}.hero h1{font-size:32px;line-height:1.6;margin:13px 0}.hero p{font-size:12px;max-width:330px}.hero .eyebrow{font-size:10px;letter-spacing:1.7px}.mobile-br{display:block}.underlined{margin-left:0}.studio{display:flex;flex-direction:column;gap:27px}.input-panel{width:100%;padding:20px}.section-title h2{font-size:14px}.dropzone{height:190px;margin-top:18px}.file-info{margin-bottom:14px}.settings-title{margin-top:18px}.setting{margin-bottom:10px}select,.seed-field{width:180px;height:39px}.seed-field input{width:145px}.setting-note{margin-top:11px;margin-bottom:19px}.primary-button{padding:14px}.tip-card{padding:11px 14px}.tip-card p{font-size:11px}.privacy-note{margin-bottom:14px}.output-panel{width:100%}.viewport{height:405px}.viewer-toolbar{height:45px;align-items:center;padding-bottom:13px}.status-pill{font-size:10px}.result-bar{flex-direction:row;align-items:center;padding:16px}.download-button{width:auto;padding:10px 12px}.output-footnote{font-size:10px}.history-section{margin-top:28px}.history-heading .margin-note{font-size:8px;letter-spacing:0}.history-list{grid-template-columns:1fr}.history-open img{width:51px;height:51px}.history-card{padding:10px 13px}.guide-section{margin:32px 0}.guide-cards{grid-template-columns:1fr;gap:23px}.guide-cards article{padding-left:33px;position:relative}.guide-number{position:absolute;left:0;top:2px}.guide-cards h3{margin:0 0 7px}.guide-cards p{font-size:12px}.footer{flex-direction:column;gap:9px;align-items:flex-start;padding-top:19px}.footer>span:nth-child(2){font-size:10px}.empty-overlay{bottom:80px}.specimen-label{font-size:13px}}/* Keep instructional copy readable; decorative drafting labels remain compact. */
.setting-note,.tip-card p,.output-footnote,.progress-card p,.guide-cards p,.guide-heading p{font-size:12px}
.setting>label{font-size:13px}
select,.seed-field input{font-size:12px}
.file-info,.privacy-note,.tip-card b,.result-label,.history-open small{font-size:11px}
.history-empty{font-size:12px}
.download-button{font-size:12px}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important;transition:none!important}}