@charset "UTF-8";
/* Keep grid children within the viewport, including Chinese headings. */
.hero>*{min-width:0}
@media(max-width:700px){.hero-copy h1{font-size:clamp(34px,11vw,48px)!important}.hero-foot{flex-wrap:wrap}}
:root{--paper:#f6f5ef;--ink:#202b48;--muted:#758084;--line:#dcded5;--orange:#d56e42;--green:#47796a}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;font-size:14px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #dd956b;outline-offset:4px}button{background:none;border:0}main,.site-header,footer{max-width:1320px;margin:auto;padding-left:64px;padding-right:64px}.site-header{height:100px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:36px}.brand{font-weight:700;font-size:22px;display:flex;align-items:center;gap:10px;letter-spacing:1px;white-space:nowrap}.brand-icon{font-size:32px;color:var(--orange);line-height:1}.brand-sub{font-size:11px;font-weight:400;letter-spacing:2px;color:var(--muted);margin-left:10px;border-left:1px solid var(--line);padding-left:20px}nav{display:flex;gap:32px;margin-left:auto}nav a{padding:12px 2px;color:var(--muted)}nav a.active{color:var(--ink)}.header-action{border:1px solid var(--line);padding:11px 18px;border-radius:6px;margin-left:32px;font-size:12px}.header-action span{margin-left:18px}.hero{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;padding:68px 0 74px;align-items:center}.eyebrow{font-size:11px;letter-spacing:2px;display:flex;align-items:center;gap:10px}.dot{height:6px;width:6px;background:var(--green);display:inline-block;border-radius:50%;flex-shrink:0}h1{font-size:clamp(42px,4.4vw,66px);line-height:1.27;font-weight:600;letter-spacing:-3px;margin:27px 0 23px}.emphasis{color:var(--orange);position:relative}.emphasis:after{content:"";position:absolute;left:0;bottom:-8px;width:100%;border-bottom:2px solid var(--orange);transform:rotate(-3deg);opacity:.45}.hero-description{font-size:15px;color:#737c80;line-height:1.95;margin:0 0 32px}.hero-actions{display:flex;gap:20px;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:13px 20px;border:1px solid var(--line);border-radius:6px;transition:background .15s}.button:hover{background:#e9ebe2}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:#35415f}.text-button{font-size:12px;padding:12px 0}.text-button span{margin-left:10px}.hero-foot{display:flex;align-items:center;gap:16px;font-size:10px;color:var(--muted);margin-top:44px}.small-geometry{color:var(--green);font-size:20px;letter-spacing:5px}.hero-demo{position:relative;background:#eeeee5;border:1px solid #dde0d3;border-radius:12px;padding:23px 24px 17px;box-shadow:0 20px 55px #26363106}.canvas-heading{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.canvas-heading>span:first-child{display:flex;gap:8px;align-items:center;color:var(--ink)}.micro{font-size:10px;letter-spacing:1px;color:var(--muted)}.geometry-canvas{width:100%;aspect-ratio:640/450;position:relative;background-image:radial-gradient(#71827725 .8px,transparent .8px);background-size:20px 20px;border-radius:7px;overflow:hidden}.geometry-canvas svg{display:block;width:100%;height:100%}.canvas-caption{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #d7ddcf;padding-top:16px;gap:16px}.canvas-caption strong{font-size:12px;font-weight:500;display:block}.canvas-caption div>span{font-size:10px;display:block;margin-top:6px;color:var(--muted)}.round-button{height:33px;width:33px;border:1px solid #ced4c6;border-radius:50%;flex-shrink:0;font-size:20px;display:grid;place-items:center}.round-button:hover{background:#e0e5d8}.canvas-stamp{position:absolute;left:24px;top:60px;font-size:9px;letter-spacing:1px;color:var(--muted)}.works-section{border-top:1px solid var(--line);padding-top:37px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.muted{color:var(--muted);font-size:9px}.section-heading h2{font-size:25px;font-weight:500;letter-spacing:-.7px;margin:11px 0 0}.count{font-size:11px;vertical-align:top;border:1px solid var(--line);padding:3px 7px;border-radius:12px;display:inline-block;margin-left:13px;letter-spacing:0}.section-note{font-size:11px;color:var(--muted);padding-bottom:4px}.filter-bar{display:flex;justify-content:space-between;margin:28px 0 23px;gap:16px}.filters{display:flex;gap:7px;flex-wrap:wrap}.filters button{font-size:11px;padding:9px 15px;border-radius:5px;border:1px solid transparent}.filters .selected{background:var(--ink);color:white}.filters button:not(.selected):hover{background:#e9ebe3}.search{display:flex;gap:9px;align-items:center;border:1px solid var(--line);border-radius:5px;padding:7px 12px;min-width:226px}.search>span{font-size:22px;line-height:1;color:var(--muted)}.search input{background:none;border:0;width:100%;outline:none;font-size:11px;color:var(--ink)}.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.work-card{border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#fafaf5;text-align:left;padding:0;transition:transform .18s,box-shadow .18s}.work-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px #24363110}.thumb{height:200px;position:relative;overflow:hidden;background:#eeeee5}.thumb svg{height:100%;width:100%;display:block}.card-flag{position:absolute;top:14px;left:14px;background:#fafaf0da;padding:5px 8px;font-size:9px;border-radius:4px}.card-index{position:absolute;bottom:12px;right:14px;font-size:10px;color:#818981}.card-body{padding:19px 19px 16px}.card-body h3{font-size:17px;font-weight:500;letter-spacing:-.3px;margin:0 0 9px;display:flex;justify-content:space-between}.card-body p{font-size:11px;color:var(--muted);line-height:1.7;margin:0 0 19px}.card-bottom{display:flex;align-items:center;justify-content:space-between;font-size:9px;color:var(--muted)}.tags{display:flex;gap:6px}.tags span,.pill{padding:4px 7px;background:#edf0e7;border-radius:3px;color:#677768;font-size:9px}.sample-note{font-size:10px;color:var(--muted);margin:20px 0 0}.empty{padding:30px;background:#eee;color:var(--muted)}.collections-section{padding:50px 0}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:23px}.topic{display:flex;align-items:center;gap:24px;background:#eeeee6;border:1px solid var(--line);border-radius:8px;padding:25px;text-align:left}.topic:hover{background:#e8eadf}.topic-symbol{font-size:45px;line-height:1;color:var(--green);width:48px;text-align:center}.topic h3{font-size:17px;font-weight:500;margin:7px 0}.topic p{font-size:11px;color:var(--muted);margin:0}.topic>span:last-child{margin-left:auto;font-size:22px}.about-section{display:flex;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:30px;padding:35px 0 38px}.about-mark{font-family:Georgia,serif;font-size:65px;color:var(--orange);width:60px}.about-section h2{font-size:20px;font-weight:500;margin:10px 0}.about-section p{font-size:11px;color:var(--muted);line-height:1.9;margin:0}.about-section>a{margin-left:auto}footer{display:flex;align-items:center;justify-content:space-between;padding-top:25px;padding-bottom:30px;font-size:10px;color:var(--muted)}footer .brand{font-size:14px}footer .brand-icon{font-size:22px}dialog{max-width:1120px;width:calc(100% - 48px);max-height:92vh;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:28px;box-shadow:0 30px 100px #0003}dialog::backdrop{background:#15233b88;backdrop-filter:blur(6px)}.detail-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.detail-header h2{font-size:25px;font-weight:500;margin:10px 0 0}.detail-layout{display:grid;grid-template-columns:1fr 245px;gap:30px}.detail-main .geometry-canvas{background-color:#eeeee5;border:1px solid var(--line)}.detail-main .geometry-canvas:fullscreen{background-color:var(--paper);aspect-ratio:auto;height:100%;display:flex;align-items:center;justify-content:center}.detail-main .geometry-canvas:fullscreen svg{max-height:100%;max-width:100%}.controls{padding:15px 0;min-height:50px}.controls label{display:flex;gap:14px;align-items:center;font-size:12px;margin:8px 0}.controls input{accent-color:var(--orange);flex:1;max-width:350px}.detail-actions{display:flex;gap:8px;flex-wrap:wrap}.detail-actions .button{font-size:11px;padding:10px 12px;gap:5px}aside h3{font-size:14px;font-weight:500;margin:23px 0 12px}aside p,aside ol{font-size:12px;line-height:1.9;color:#687579}aside ol{padding-left:18px}aside li{margin-bottom:10px}aside details{border-top:1px solid var(--line);padding-top:15px;margin-top:20px}summary{cursor:pointer;font-size:12px}.detail-note{font-size:10px!important;border-top:1px solid var(--line);padding-top:20px;margin-top:25px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 20px;border-radius:6px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:1000;max-width:90vw}#toast.visible{opacity:1}.drag-point{cursor:grab;touch-action:none}.drag-point:active{cursor:grabbing}.drag-point:focus{outline:none;stroke:#202b48;stroke-width:3}svg text{font-family:Georgia,"Microsoft YaHei",serif}svg .annotation{font-family:"Microsoft YaHei",sans-serif}button[hidden],div[hidden],p[hidden]{display:none!important}@media(min-width:1500px){.hero{padding-top:90px;padding-bottom:95px}.hero-demo .geometry-canvas{min-height:370px}}@media(max-width:1000px){main,.site-header,footer{padding-left:32px;padding-right:32px}.hero{gap:30px}h1{font-size:48px}.brand-sub{display:none}.header-action{margin-left:0}.section-note{display:none}.thumb{height:170px}.detail-layout{grid-template-columns:1fr 210px;gap:20px}.hero-actions{gap:12px}}@media(max-width:700px){main,.site-header,footer{padding-left:20px;padding-right:20px}.site-header{height:76px;gap:20px}.brand{font-size:18px}.brand-icon{font-size:27px}nav{gap:18px;font-size:12px}.header-action{display:none}.hero{grid-template-columns:1fr;padding:38px 0 35px;gap:30px}.hero-copy h1{font-size:48px;margin:20px 0}.hero-description{font-size:13px;margin-bottom:23px}.hero-foot{margin-top:25px}.hero-demo{padding:20px}.hero-demo .geometry-canvas{min-height:235px}.canvas-stamp{left:20px}.section-heading h2{font-size:21px}.works-section{padding-top:27px}.filter-bar{flex-direction:column;margin-top:22px}.search{min-width:0}.work-grid{grid-template-columns:1fr}.thumb{height:230px}.card-body h3{font-size:19px}.card-body p{font-size:12px}.topic-grid{grid-template-columns:1fr}.collections-section{padding:35px 0}.topic{padding:22px}.about-section{gap:16px;align-items:flex-start}.about-mark{font-size:45px;width:32px}.about-section h2{font-size:17px}.about-section>a{display:none}.desktop-break{display:none}footer{flex-wrap:wrap;gap:20px}footer>span:nth-child(2){display:none}dialog{width:calc(100% - 20px);padding:18px}.detail-header h2{font-size:21px}.detail-layout{grid-template-columns:1fr;gap:15px}.detail-actions .button{flex:1 1 40%}aside{border-top:1px solid var(--line);padding-top:20px}.detail-main .geometry-canvas{min-height:240px}.eyebrow{letter-spacing:1px;font-size:10px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}