:root{--paper:#f5f4ef;--olive:#344b3a;--olive-dark:#22362a;--ink:#171c18;--ink-2:#282a24;--muted:#62665c;--line:#dddcd3;--line-2:#d5d7cd;--soft:#eef0ea;--stage:#d3d4c9;--cream:#fffefa;--warn:#8a3b1f;--sans:"Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Heiti TC", system-ui, -apple-system, "Segoe UI", sans-serif;--serif:"Noto Serif TC", "Songti TC", "PMingLiU", Georgia, serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-text-size-adjust:100%;margin:0;line-height:1.6}a{color:var(--olive)}a:hover{color:var(--olive-dark)}img{max-width:100%}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed}:focus-visible{outline:2px solid var(--olive);outline-offset:2px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.wrap{max-width:1240px;margin:0 auto;padding:0 24px}.muted{color:var(--muted)}.small{font-size:13px}.tiny{margin:4px 0;font-size:12px}.serif{font-family:var(--serif);font-weight:500}.lead{max-width:640px;font-size:17px}.kicker{letter-spacing:3px;color:var(--muted);margin:0;font-size:12px;font-weight:500}.link-btn{color:var(--olive);background:0 0;border:0;padding:0;text-decoration:underline}.tag{color:var(--olive);background:#e6e9de;border-radius:6px;margin-left:6px;padding:1px 8px;font-size:12px;display:inline-block}.tag.solid{background:var(--olive);color:#fff;margin-left:0}button.primary,.primary{background:var(--olive);color:#fff;border:0;border-radius:6px;min-height:44px;padding:0 14px}button.primary:hover:not(:disabled){background:var(--olive-dark)}button.primary:disabled{opacity:.55}button.primary.small,button.ghost.small{min-height:34px;padding:0 12px;font-size:13px}button.primary.big{border-radius:8px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:52px;font-size:16px;font-weight:500;display:flex}button.ghost{border:1px solid var(--olive);background:#fff;border-radius:6px;min-height:40px;padding:0 12px}button.ghost[aria-pressed=true]{background:var(--olive);color:#fff}.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.header-row{flex-wrap:wrap;align-items:center;gap:12px 24px;padding-top:16px;padding-bottom:16px;display:flex}.brand{align-items:center;display:flex}.brand img{object-fit:contain;width:56px;height:36px}.main-nav{flex-wrap:wrap;flex:auto;justify-content:center;gap:6px 28px;font-size:16px;display:flex}.main-nav a{color:var(--ink);text-decoration:none}.main-nav a:hover{color:var(--olive)}.header-tools{align-items:center;gap:10px;display:flex}.credit-chip{border:1px solid var(--olive);min-height:32px;color:var(--olive);background:#fff;border-radius:999px;align-items:center;padding:0 12px;font-size:13px;text-decoration:none;display:inline-flex}.lang-group{gap:4px;display:flex}.lang-group button{border:1px solid var(--olive);min-width:36px;min-height:32px;color:var(--ink);background:#fff;font-size:13px}.lang-group button[aria-pressed=true]{background:var(--olive);color:#fff}.main{padding-top:40px}.workbench,.workbench-skeleton{flex-wrap:wrap;align-items:stretch;gap:18px;min-height:560px;display:flex}.panel{border-radius:8px}.panel-title{margin:4px 0;font-size:16px;font-weight:700}.chat{background:#fff;flex-direction:column;flex:300px;gap:10px;min-width:0;max-width:100%;padding:16px;display:flex}.steps{flex-wrap:wrap;gap:6px;display:flex}.steps button{border:1px solid var(--olive);background:#fff;border-radius:6px;min-height:34px;padding:0 12px;font-size:13px}.steps button[aria-pressed=true]{background:var(--olive);color:#fff}.backend{flex-direction:column;gap:2px;display:flex}.backend-group{background:var(--soft);border-radius:8px;align-self:flex-start;gap:4px;padding:3px;display:inline-flex}.backend-group button{background:0 0;border:0;border-radius:6px;min-height:30px;padding:0 10px;font-size:12px}.backend-group button[aria-checked=true]{background:var(--olive);color:#fff}.backend p{margin:0}.chat-log{flex-direction:column;flex:auto;gap:8px;min-height:120px;max-height:300px;display:flex;overflow-y:auto}.bubble{white-space:pre-line;border-radius:6px;margin:0;padding:8px 10px;font-size:14px}.bubble.customer{background:var(--soft)}.bubble.bjm{background:var(--olive);color:#fff}.bubble.pending{opacity:.7}.bubble .who{font-weight:500}.bubble .files{opacity:.8;margin-top:2px;font-size:12px;display:block}.chat-notice{color:var(--warn);background:#f6ebe4;border-radius:6px;margin:0;padding:8px 10px;font-size:13px}.drop{border:2px dashed var(--olive);min-height:52px;color:var(--ink-2);cursor:pointer;text-align:center;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;padding:6px;font-size:13px;display:flex}.drop small{color:var(--muted);font-size:11px}.drop.over{background:var(--soft)}.file-tag{background:var(--soft);border-radius:4px;align-items:center;gap:4px;margin:2px 4px 0 0;padding:0 6px;display:inline-flex}.file-tag button{background:0 0;border:0;padding:0 2px}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--olive);background:#fff;border-radius:999px;min-height:34px;padding:0 12px;font-size:14px}.chip[aria-pressed=true]{background:#e6e9de}.brief-edit{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.brief-edit input,.composer input,.inline-input{border:1px solid var(--line-2);min-height:38px;font:inherit;background:#f7f7f3;border-radius:6px;padding:0 10px;font-size:14px}.brief-edit input{flex:140px}.brief-edit button{border:1px solid var(--olive);background:#fff;border-radius:6px;min-height:38px;padding:0 12px}.inline-input{width:110px;min-height:32px}.composer{flex-direction:column;gap:8px;display:flex}.composer input{min-height:42px}.composer .cost{margin:0}.composer .cost.warn{color:var(--warn)}.viewer{background:var(--stage);flex-direction:column;flex:2 440px;min-width:0;min-height:520px;display:flex;overflow:hidden}.viewer.mode-structure{background:#f7f7f3}.viewer-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;display:flex}.viewer-label{color:var(--olive);background:#ffffffd9;border-radius:6px;padding:4px 10px;font-size:14px;font-weight:500}.seg{background:#ffffffb3;border-radius:8px;flex-wrap:wrap;gap:4px;padding:3px;display:flex}.seg button{background:0 0;border:0;border-radius:6px;min-height:34px;padding:0 10px;font-size:12px}.seg button[aria-pressed=true]{background:var(--olive);color:#fff}.stage{flex:auto;min-height:440px;position:relative}.stage canvas{touch-action:none;width:100%;height:100%;display:block;position:absolute;inset:0}.stage-status{background:#ffffffe6;border-radius:6px;margin:0;padding:6px 12px;font-size:14px;position:absolute;top:45%;left:50%;transform:translate(-50%,-50%)}.dims-badge{background:var(--cream);border:1px solid var(--line-2);white-space:nowrap;z-index:2;border-radius:6px;padding:2px 10px;font-size:13px;position:absolute;top:12px;left:50%;transform:translate(-50%)}.stage-foot{pointer-events:none;justify-content:space-between;align-items:center;gap:8px;display:flex;position:absolute;bottom:10px;left:12px;right:12px}.stage-foot>*{pointer-events:auto}.stage-foot .muted{background:#ffffffbf;border-radius:6px;padding:2px 8px}.bom{border:1px solid var(--line);background:#fffffff0;border-radius:8px;width:min(250px,100% - 24px);max-height:calc(100% - 110px);padding:10px 12px;font-size:12px;position:absolute;top:48px;right:12px;overflow:auto}.bom .bom-title{margin:0 0 6px;font-size:13px;font-weight:700}.bom table{border-collapse:collapse;width:100%}.bom th,.bom td{text-align:left;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;padding:3px 4px}.bom th{color:var(--muted);font-weight:500}.ar-stage{flex-direction:column;display:flex}.ar-stage .ar-model{flex:auto;min-height:360px}.ar-actions{flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px 14px;display:flex}.ar-stage .chat-notice{margin:0 14px 12px}.qr-pop{z-index:3;border:1px solid var(--line);background:#fff;border-radius:10px;flex-direction:column;gap:8px;max-width:calc(100% - 28px);padding:12px;display:flex;position:absolute;top:10px;right:14px;box-shadow:0 6px 20px #00000014}.ar-model{width:100%;height:100%;position:relative}.ar-model model-viewer{width:100%;height:100%;min-height:inherit;display:block}.ar-model-poster{object-fit:contain;pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.ar-model-status{white-space:nowrap;background:#ffffffe6;border-radius:6px;margin:0;padding:4px 10px;font-size:13px;position:absolute;bottom:12px;left:50%;transform:translate(-50%)}.ar-qr{align-items:center;gap:14px;display:flex}.ar-qr img,.ar-qr-blank{background:#fff;border-radius:4px;flex-shrink:0}.ar-qr p{margin:0 0 4px}.ar-qr-title{margin:0 0 4px;font-weight:500}.ar-qr .note{color:var(--warn)}.side{flex-direction:column;flex:260px;gap:10px;min-width:0;display:flex}.card{border:1px solid var(--line);background:#fff;border-radius:6px;padding:12px}.version p{margin:0}.version.active{border-color:var(--olive);box-shadow:inset 3px 0 0 var(--olive)}.v-head{font-size:15px}.v-note{margin:2px 0 0!important}.v-status{color:var(--ink-2);flex-wrap:wrap;gap:4px 14px;display:flex;margin:6px 0 10px!important}.v-actions{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.billing h3{margin:0 0 8px;font-size:15px}.billing hr{border:0;border-top:1px solid var(--line);margin:10px 0}.bill-row{flex-wrap:wrap;justify-content:space-between;gap:8px;margin:4px 0;font-size:13px;display:flex}.bill-btns{gap:6px;margin:6px 0;display:grid}.bill-btns.two{grid-template-columns:1fr 1fr}.billing button,.plan button,.pricing-extra button{border:1px solid var(--line-2);min-height:36px;color:var(--muted);background:#f3f3ee;border-radius:6px;padding:0 8px;font-size:12px}.billing .bill-primary{width:100%;min-height:42px;color:var(--olive);background:#e3e7dc;border-color:#c8d0bf;font-size:13px;font-weight:500}.section{padding:72px 0 0}.section-title{color:var(--olive);margin:0 0 20px;font-size:28px;font-weight:700}.cases{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;display:grid}.case{color:var(--ink);text-decoration:none}.case img{object-fit:cover;background:#ece9df;border-radius:6px;width:100%;height:170px;display:block}.case p{margin:10px 0 0;font-weight:700}#ar.section{padding-bottom:72px}.ar-card{border:1px solid var(--line);background:#fff;border-radius:8px;flex-wrap:wrap;align-items:center;gap:24px;padding:18px;display:flex}.ar-card-model{background:#ece9df;border-radius:6px;flex:1.5 420px;min-width:0;height:280px;position:relative;overflow:hidden}.ar-card-model>img{object-fit:contain;width:100%;height:100%}.ar-card-side{flex-direction:column;flex:260px;gap:12px;display:flex}.ar-card-side p{margin:0}.site-footer{background:var(--ink);color:var(--paper)}.site-footer .wrap{padding-top:26px;padding-bottom:26px}.site-footer p{margin:0;font-size:16px}.site-footer .footer-sub{opacity:.8;flex-wrap:wrap;gap:4px 10px;margin-top:8px;font-size:13px;display:flex}.site-footer a{color:var(--paper)}.ar-hero{padding:56px 0 32px}.ar-main{flex-wrap:wrap;gap:28px;padding-bottom:72px;display:flex}.ar-viewer-box{background:#ece9df;border-radius:16px;flex-direction:column;flex:1.6 560px;gap:14px;min-width:0;padding:18px;display:flex}.ar-viewer-box .seg{background:0 0;align-self:flex-start}.ar-viewer-box .seg button{min-height:40px;padding:0 16px;font-size:14px}.ar-viewer-box .seg button[aria-pressed=true]{background:var(--cream);color:var(--ink);font-weight:500}.ar-viewer{background:#e2dfd4;border-radius:10px;height:440px;position:relative;overflow:hidden}.ar-viewer-box>p{margin:0}.ar-info{flex-direction:column;flex:340px;gap:18px;display:flex}.ar-info h1{margin:4px 0 8px;font-size:32px}.ar-info p{margin:0}.devices{flex-direction:column;gap:8px;margin:0;padding:0;font-size:14px;list-style:none;display:flex}.devices li{align-items:center;gap:10px;display:flex}.devices .tag{text-align:center;min-width:64px;margin:0}.band{background:var(--cream);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}.band .wrap{padding-top:64px;padding-bottom:64px}.band h2,.list-head h2{margin:0 0 28px;font-size:clamp(26px,3vw,36px)}.steps3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin:0;padding:0;list-style:none;display:grid}.steps3 li{border-top:2px solid var(--olive);padding-top:18px}.steps3 .num{color:var(--olive);font-family:Georgia,serif;font-size:28px}.steps3 h3{margin:6px 0;font-size:19px;font-weight:500}.steps3 p{margin:0;font-size:15px}.list-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px;display:flex}.list-head h2{margin:0}.ar-list{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;padding-bottom:72px;display:grid}.ar-item{color:var(--ink);border:1px solid var(--line-2);background:var(--cream);border-radius:12px;text-decoration:none;overflow:hidden}.ar-item.current{border-color:var(--olive)}.ar-item img,.ar-item-blank{object-fit:contain;width:100%;height:200px;color:var(--olive);background:#ece9df;justify-content:center;align-items:center;font-size:18px;display:flex}.ar-item>div:last-child{padding:14px 16px}.ar-item h3{margin:8px 0 0;font-size:19px;font-weight:500}.ar-item .tag{margin-left:0}.ar-item.more{color:var(--muted);text-align:center;border-style:dashed;justify-content:center;align-items:center;min-height:260px;padding:20px;display:flex}.plans{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:24px 0;display:grid}.plan h2{margin:0;font-size:20px}.plan.current{border-color:var(--olive)}.price{color:var(--olive);margin:6px 0;font-size:28px;font-weight:700}.plan ul{margin:8px 0 14px;padding-left:18px;font-size:14px}.plan button{width:100%}.pricing-extra{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;padding-bottom:72px;display:grid}.pricing-extra h2{margin:0 0 8px;font-size:17px}.costs{border-collapse:collapse;width:100%;font-size:14px}.costs td{border-bottom:1px solid var(--line);padding:4px 0}.costs td:last-child{text-align:right}.card.flash{outline:3px solid var(--olive);outline-offset:2px;transition:outline-color .3s}.owner-list{gap:12px;padding-bottom:72px;display:grid}.owner-list p{margin:0 0 6px}@media (max-width:720px){.wrap{padding:0 16px}.main-nav{flex-basis:100%;order:3;justify-content:flex-start;gap:6px 20px}.header-tools{margin-left:auto}.main{padding-top:20px}.viewer{min-height:460px}.stage{min-height:380px}.bom{width:auto;max-height:none;margin:0 12px 52px;position:static}.ar-card-model{flex-basis:100%;height:240px}.ar-viewer{height:340px}.ar-viewer-box,.ar-info{flex-basis:100%}.section-title{font-size:24px}}.demo-box{border:1px dashed var(--line-2);border-radius:8px;flex-direction:column;gap:6px;padding:8px 10px;display:flex}.demo-toggle{align-items:center;gap:6px;display:flex}.demo-box p{margin:0}.composer label.small{margin-bottom:-4px}.turnstile{min-height:65px}.owner-files{margin:4px 0;padding-left:18px}.cad-gen{margin:16px 0 24px}.cad-gen-grid{flex-wrap:wrap;gap:16px;display:flex}.cad-form{flex-direction:column;flex:0 220px;gap:6px;display:flex}.cad-form label{flex-direction:column;gap:2px;display:flex}.cad-form input{border:1px solid var(--line-2);min-height:34px;font:inherit;background:#f7f7f3;border-radius:6px;padding:0 8px}.cad-view{flex-direction:column;flex:420px;gap:8px;min-width:0;display:flex}.cad-stage{background:var(--stage);border-radius:8px;min-height:380px;overflow:hidden}.cad-result p{overflow-wrap:anywhere;margin:2px 0}.file-link{white-space:nowrap;margin-right:10px;display:inline-block}.cad-versions{margin:4px 0;padding-left:18px}.chat-head{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.bubble.role-staff{background:var(--olive-dark)}.bubble.role-system{color:var(--olive);background:#e6e9de}.owner-chat{margin:16px 0}.owner-chat-grid{flex-wrap:wrap;gap:14px;display:flex}.owner-chat-list{flex-direction:column;flex:0 300px;gap:6px;max-height:460px;margin:0;padding:0;list-style:none;display:flex;overflow:auto}.owner-chat-list button{text-align:left;border:1px solid var(--line);background:#fff;border-radius:6px;flex-wrap:wrap;align-items:center;gap:4px 8px;width:100%;padding:8px 10px;display:flex}.owner-chat-list button[aria-pressed=true]{border-color:var(--olive);box-shadow:inset 3px 0 0 var(--olive)}.owner-chat-last{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;flex-basis:100%;overflow:hidden}.owner-chat-thread{flex-direction:column;flex:420px;gap:8px;min-width:0;display:flex}.owner-chat-head{align-items:center;gap:8px;display:flex}.owner-chat-head .ghost{margin-left:auto}.owner-log{max-height:380px}