*{box-sizing:border-box} :root{color-scheme:light;--ink:#263d35;--muted:#707970;--green:#315a48;--line:#e0e5dc;--soft:#edf1e8;--paper:#fafaf7;--accent:#b46142}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.6}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.44}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline:3px solid #cc855c;outline-offset:3px}[hidden]{display:none!important}a{color:inherit}button{border:0}h1,h2,p{margin:0}button{transition:background .18s,box-shadow .18s,transform .18s}button:active:not(:disabled){transform:translateY(1px)}.skip{position:absolute;left:15px;top:-100px;background:white;z-index:20;padding:12px}.skip:focus{top:10px}.site-header{height:83px;padding:0 max(28px,calc((100vw - 1450px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;letter-spacing:1.5px;font-size:23px}.brand-bead{height:27px;width:27px;border:8px solid var(--green);border-radius:50%;box-shadow:inset 1px 2px 3px #17282033,2px 3px 0 #bdc9b2}.brand-caption{font-size:14px;letter-spacing:1px;font-weight:400;margin-left:12px;padding-left:20px;border-left:1px solid var(--line)}.shop-link{text-decoration:none;font-size:14px;padding:8px 0;border-bottom:1px solid #a6b5a7}main{max-width:1506px;padding:36px 28px 20px;margin:0 auto}.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--accent);margin-bottom:7px}h1{font-size:30px;line-height:1.4;font-weight:650;letter-spacing:1px}.page-heading p{font-size:15px;margin-top:8px;color:var(--muted)}.local-note{color:var(--muted);font-size:13px;white-space:nowrap;padding-bottom:3px;display:flex;gap:7px;align-items:center}.local-note span{color:var(--green)}.workspace{display:grid;grid-template-columns:292px minmax(0,1fr);gap:24px;align-items:start}.controls{padding:23px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 7px 20px #384c3910}.control-section+ .control-section{border-top:1px solid var(--line);margin-top:21px;padding-top:19px}h2{font-size:16px;font-weight:650;display:flex;align-items:center;gap:10px}.step{width:23px;height:23px;display:grid;place-items:center;border-radius:50%;background:var(--soft);font-size:12px;color:var(--green);font-weight:700}.dropzone{margin-top:15px;display:flex;align-items:center;text-align:center;flex-direction:column;border:1px dashed #adbbae;border-radius:10px;background:#f7f9f4;padding:19px 8px;cursor:pointer;position:relative}.dropzone:hover,.dropzone.dragging{border-color:var(--green);background:#ecf2e7}.dropzone svg{width:31px;fill:none;stroke:var(--green);stroke-width:1.5;margin-bottom:10px}.dropzone strong{font-size:14px;font-weight:500}.dropzone span{color:var(--muted);font-size:12px;margin-top:6px}.dropzone input{position:absolute;opacity:0;width:1px;height:1px}.dropzone:focus-within{outline:3px solid #cc855c;outline-offset:3px}.text-button{padding:7px 0;background:transparent;color:var(--green);font-size:14px;text-decoration:underline;text-underline-offset:4px}.file-info{font-size:12px;color:var(--muted);overflow-wrap:anywhere;margin-top:4px}.field{display:flex;flex-direction:column;gap:6px;font-size:14px;margin-top:13px}select,input[type=number]{width:100%;min-width:0;padding:9px 10px;background:white;border:1px solid #d5dccf;border-radius:7px;color:var(--ink);height:42px}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.palette-label{display:flex;align-items:center;gap:12px;background:#f6f7f1;border-radius:8px;padding:12px 10px;margin-top:18px}.palette-label strong{display:block;font-size:13px;font-weight:600}.palette-label span:not(.palette-dots){display:block;font-size:12px;color:var(--muted)}.palette-dots{display:flex;margin-left:3px}.palette-dots i{display:block;width:14px;height:14px;border-radius:50%;border:1px solid #fff;margin-left:-3px;background:#344c3f}.palette-dots i:nth-child(2){background:#829074}.palette-dots i:nth-child(3){background:#ddb764}.palette-dots i:nth-child(4){background:#b65b42}.palette-dots i:nth-child(5){background:#efdec1}.check-field{display:flex;align-items:center;gap:6px;font-size:13px;margin-top:14px}input[type=checkbox]{accent-color:var(--green);width:16px;height:16px}.muted{color:var(--muted);font-size:12px;line-height:1.7;margin-top:10px}.range-label{display:flex;justify-content:space-between;font-size:13px;margin-top:13px}.range-label output{font-variant-numeric:tabular-nums;color:var(--muted)}input[type=range]{accent-color:var(--green);width:100%;margin:11px 0 13px;height:18px}.button-row{display:flex;gap:8px}.button-row button{font-size:12px;flex:1;padding:8px 5px}.secondary{background:#fff;border:1px solid #ccd6c8;color:var(--ink);border-radius:7px;padding:9px 15px;font-size:14px}.secondary:hover{background:#f0f3eb}.primary{background:var(--green);color:white;font-size:14px;font-weight:600;border-radius:9px;padding:12px 21px;box-shadow:0 3px 7px #315a4812}.primary:hover:not(:disabled){background:#244836}.generate-button{width:100%;margin-top:23px}.error-message{font-size:13px;color:#a33c24;padding:12px 0 0;overflow-wrap:anywhere}.editor{background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 7px 20px #384c3908;min-width:0}.editor-toolbar{min-height:65px;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line)}.view-tabs{display:flex;gap:5px;border-radius:8px;background:#f2f4ee;padding:4px}.view-tabs button{background:transparent;border-radius:5px;padding:7px 14px;font-size:14px;color:#718071}.view-tabs button[aria-selected=true]{background:#fff;color:var(--green);box-shadow:0 1px 5px #24372a18}.board-size{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}.canvas-panel{height:660px;position:relative;overflow:hidden;background-color:#f5f6ef;background-image:linear-gradient(#77886a12 1px,transparent 1px),linear-gradient(90deg,#77886a12 1px,transparent 1px);background-size:18px 18px}.canvas-panel.dragging{box-shadow:inset 0 0 0 3px #315a48}canvas{display:block;width:100%;height:100%;touch-action:none}.canvas-panel.has-image canvas{cursor:grab}.canvas-panel.has-image canvas:active{cursor:grabbing}.empty-state{position:absolute;inset:0;display:flex;justify-content:center;align-items:center;flex-direction:column;pointer-events:none;padding:20px;text-align:center}.empty-state button{pointer-events:auto}.empty-state h2{font-size:21px;font-weight:500;margin:25px 0 9px}.empty-state p{font-size:14px;color:var(--muted);margin-bottom:25px}.empty-state>span:last-child{font-size:12px;color:var(--muted);margin-top:12px}.empty-beads{display:grid;grid-template-columns:22px 22px;gap:5px;transform:rotate(-8deg)}.empty-beads i{display:block;height:22px;border:7px solid #71816a;border-radius:50%;box-shadow:2px 2px 0 #75816335}.empty-beads i:nth-child(2){border-color:#d9b464}.empty-beads i:nth-child(3){border-color:#c58161}.empty-beads i:nth-child(4){border-color:#adb699}.canvas-footer{display:flex;align-items:center;justify-content:space-between;min-height:49px;padding:10px 18px;border-top:1px solid var(--line);gap:10px}.canvas-footer>p{font-size:12px;color:var(--muted)}.pattern-tools{display:flex;align-items:center;gap:10px;font-size:12px}.pattern-tools label{display:flex;align-items:center;gap:2px}.pattern-tools output{min-width:36px;text-align:center;font-variant-numeric:tabular-nums}.pattern-tools .text-button{font-size:12px}.icon-button{padding:4px 7px;background:transparent;color:var(--ink);font-size:21px;border-radius:5px;line-height:1.4;min-width:28px}.icon-button:hover{background:var(--soft)}.result-summary{padding:21px;display:flex;gap:30px;align-items:center;background:#fcfcf9;border-top:1px solid var(--line)}.result-summary>div{display:flex;flex-direction:column;gap:3px}.result-summary span{font-size:12px;color:var(--muted)}.result-summary strong{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}.result-summary button{margin-left:auto}.materials{border:1px solid var(--line);border-radius:16px;background:#fff;padding:25px;margin-top:25px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px}.section-heading h2{font-size:19px}.section-heading p{font-size:13px;color:var(--muted);margin-top:5px}.color-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(145px,1fr));gap:10px}.color-item{display:flex;align-items:center;gap:10px;padding:10px;background:#fafbf7;border:1px solid #edf0e8;border-radius:8px;min-width:0}.bead{display:block;flex-shrink:0;width:30px;height:30px;background:var(--bead-color);border-radius:50%;box-shadow:inset 2px 2px 4px #ffffff65,inset -2px -3px 4px #0002,1px 3px 3px #0001;position:relative}.bead:after{content:"";position:absolute;inset:11px;border-radius:50%;background:#fafbf7;box-shadow:inset 1px 2px 2px #0004}.color-item strong{display:block;font-size:14px}.color-item span:last-child{font-size:12px;color:var(--muted)}.page-footer{display:flex;justify-content:space-between;gap:15px;margin-top:27px;font-size:12px;color:#889083;flex-wrap:wrap}.busy-overlay{position:absolute;inset:0;display:flex;gap:15px;align-items:center;justify-content:center;flex-direction:column;background:#f5f6efe8}.busy-overlay strong{font-size:15px;font-weight:500}.spinner{width:26px;height:26px;border:3px solid #d9e2d3;border-top-color:var(--green);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}dialog{border:1px solid var(--line);border-radius:18px;max-width:470px;width:calc(100% - 32px);padding:25px;color:var(--ink);box-shadow:0 22px 90px #152c3440}dialog::backdrop{background:#1e302e70}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.dialog-head h2{font-size:19px}dialog>p{font-size:14px;color:var(--muted)}.download-options{display:grid;gap:10px;margin:20px 0}.download-options button{border:1px solid var(--line);padding:14px 16px;text-align:left;background:#f7f9f3;border-radius:10px;color:var(--ink)}.download-options button:hover{border-color:var(--green)}.download-options strong{display:block;font-size:15px}.download-options span{display:block;font-size:12px;color:var(--muted);margin-top:3px}#downloadStatus{margin-top:12px;color:var(--green)}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#233f33;color:#fff;box-shadow:0 4px 15px #0002;padding:12px 20px;border-radius:9px;z-index:100;font-size:14px;max-width:90vw;text-align:center}@media(min-width:1700px){.canvas-panel{height:740px}}@media(max-width:1050px){.workspace{grid-template-columns:270px minmax(0,1fr);gap:18px}.controls{padding:18px}.canvas-panel{height:600px}.result-summary{gap:16px;padding:16px}.result-summary strong{font-size:17px}.canvas-footer{flex-wrap:wrap}.local-note{display:none}}@media(max-width:760px){.site-header{height:68px;padding:0 18px}.brand{font-size:20px;gap:8px}.brand-bead{width:23px;height:23px;border-width:7px}.brand-caption{display:none}.shop-link{font-size:13px}main{padding:23px 14px 18px}.page-heading{margin-bottom:20px}.eyebrow{font-size:11px}h1{font-size:25px}.page-heading p{font-size:13px;max-width:290px}.workspace{display:flex;flex-direction:column;gap:18px}.controls{width:100%;display:grid;grid-template-columns:1fr 1fr;column-gap:18px;padding:17px}.controls h2{font-size:15px}.control-section+ .control-section{margin-top:0;border-top:0;padding-top:0}.dropzone{min-height:150px;padding:14px 8px}.dropzone strong{font-size:13px}.dropzone span{font-size:11px}.two-fields{gap:7px}.field{font-size:13px;margin-top:10px}select,input[type=number]{font-size:14px;padding:7px}.palette-label{padding:8px;margin-top:11px}.palette-dots{display:none}.palette-label strong{font-size:12px}.check-field{font-size:12px}.controls .crop-section{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:0 16px;margin-top:12px;border-top:1px solid var(--line);padding-top:15px}.crop-section>h2,.crop-section>p{grid-column:1}.crop-section>p{margin-top:3px}.crop-section .range-label{grid-column:2;grid-row:1;margin:0}.crop-section input[type=range]{grid-column:2;grid-row:2;margin:4px 0}.button-row{grid-column:1/-1;margin-top:11px}.button-row button{font-size:13px;min-height:40px}.generate-button{grid-column:1/-1;margin-top:15px;min-height:46px}.error-message{grid-column:1/-1}.editor{width:100%}.editor-toolbar{padding:10px 12px;min-height:60px}.view-tabs button{padding:6px 10px;font-size:13px}.board-size{font-size:12px}.canvas-panel{height:min(110vw,530px);min-height:330px}.empty-state h2{font-size:18px}.empty-state p{font-size:13px}.canvas-footer{padding:9px 12px}.pattern-tools{gap:6px}.result-summary{flex-wrap:wrap;gap:15px}.result-summary>div{flex:1}.result-summary button{flex-basis:100%;margin:0}.materials{padding:18px;margin-top:18px}.section-heading{align-items:flex-start;flex-wrap:wrap}.section-heading p{font-size:12px}.color-list{grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:7px}.page-footer{font-size:12px;gap:5px}}@media(prefers-reduced-motion:reduce){button{transition:none}.spinner{animation-duration:2s}}
