:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#f4f3eb;background:#192b27;font-synthesis:none;font-size:16px;--ink:#192b27;--muted:#aab9ae;--accent:#ddbf80;--line:#3b4c45}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid #d6ad60;outline-offset:4px}button:disabled{cursor:wait;opacity:.5}[hidden]{display:none!important}.app-shell{height:100vh;height:100svh;min-height:520px;display:grid;grid-template-rows:76px minmax(0,1fr) 158px}.topbar{display:flex;justify-content:space-between;align-items:center;padding:0 30px;gap:22px;border-bottom:1px solid var(--line);z-index:2}.brand{display:flex;align-items:center;gap:12px;min-width:195px}.brand-mark{font-size:17px;letter-spacing:-1px;border:1px solid #879886;border-radius:50%;width:43px;height:43px;display:grid;place-items:center;color:#e7d8b5}.brand h1{font-size:20px;font-weight:550;display:inline;margin:0 11px 0 0;letter-spacing:.07em}.brand-sub{font-size:14px;color:var(--muted)}.mode-switch{display:flex;padding:4px;background:#10231e;border:1px solid #3b4d43;border-radius:28px}.mode-switch button{border:0;border-radius:22px;background:transparent;color:#bec8bc;padding:10px 22px;font-size:14px;white-space:nowrap}.mode-switch .selected{background:#e6dfcc;color:#213029;box-shadow:0 2px 8px #0002}.quiet-button{min-width:195px;text-align:right;border:0;background:transparent;color:#d0dbcd;font-size:14px}.quiet-button span{border:1px solid #728575;display:inline-grid;place-items:center;width:21px;height:21px;border-radius:50%;margin-left:7px}.workspace{position:relative;min-height:0;overflow:hidden;background:radial-gradient(ellipse at 45% 45%,#edf0e6 0%,#c8d0c4 80%);color:#24362b}.model-surface,.image-surface{position:absolute;inset:0}.model-surface canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}.model-surface canvas:active{cursor:grabbing}.view-heading{pointer-events:none;position:absolute;left:32px;top:25px;z-index:2}.view-heading>span{font-size:12px;letter-spacing:.15em;color:#677769}.view-heading h2{font-size:23px;font-weight:500;margin:7px 0 0;letter-spacing:.04em}.image-surface{background:#101c18;display:grid;place-items:center;padding:22px 110px}.image-surface img{display:block;width:100%;height:100%;min-height:0;object-fit:contain}.workspace.photo-mode .view-heading{color:#f3efdf;padding:12px 16px;background:#192b27dd;border:1px solid #71806b40;border-radius:10px;top:18px;left:20px}.workspace.photo-mode .view-heading>span{color:#c1cab8}.download-image{position:absolute;right:25px;bottom:22px;display:flex;gap:24px;align-items:center;background:#e6dfcc;color:#25342a;font-size:14px;text-decoration:none;border-radius:28px;padding:12px 18px}.download-image span{font-size:20px}.model-tools{position:absolute;right:24px;top:50%;transform:translateY(-50%);background:#fbfcf3e8;border:1px solid #9aac9880;box-shadow:0 8px 25px #263c2520;border-radius:28px;padding:6px;display:flex;flex-direction:column;gap:4px}.model-tools button{width:40px;height:40px;display:grid;place-items:center;background:transparent;color:#344a37;border:0;border-radius:50%;font-size:25px;line-height:1}.model-tools button:hover{background:#dee7d8}.model-tools>span{height:1px;width:25px;background:#b7c3b1;align-self:center;margin:3px 0}.gesture-hint{position:absolute;bottom:23px;left:50%;transform:translateX(-50%);border:1px solid #e5ebdd80;color:#536653;background:#edf2e5cb;padding:9px 16px;border-radius:22px;font-size:12px;white-space:nowrap;pointer-events:none}.gesture-hint span span{margin:0 9px;color:#869680}.touch-hint{display:none}.view-note{position:absolute;left:25px;bottom:22px;border-radius:22px;background:#faf1d7ed;border:1px solid #e4c888;color:#6f571e;padding:9px 15px;font-size:14px}.view-nav{padding:13px 30px 16px;display:grid;grid-template-columns:112px minmax(0,1fr);gap:24px;background:#192b27;border-top:1px solid #425348}.nav-label{display:flex;flex-direction:column;justify-content:center;gap:14px;color:#bdcbbb;font-size:14px}.nav-label span:last-child{font-size:12px;letter-spacing:.12em;color:#819785}.view-list{display:flex;gap:10px;min-width:0;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#637566 transparent;padding-bottom:3px}.view-card{flex:1 0 102px;min-width:0;max-width:190px;padding:4px;border:1px solid #49604e;background:#20362c;border-radius:10px;overflow:hidden;color:#c4d0bf;display:flex;flex-direction:column;gap:7px;align-items:stretch;transition:border-color .18s,background .18s}.view-card:hover{border-color:#98af91;background:#2c4436}.view-card[aria-pressed=true]{background:#d7bc80;border-color:#e7ce96;color:#253125}.view-card img{width:100%;height:71px;object-fit:cover;border-radius:6px;opacity:.84;pointer-events:none}.view-card[aria-pressed=true] img{opacity:1}.view-card span{font-size:14px;line-height:1.4;padding:0 4px 3px;white-space:nowrap;text-align:center}.load-panel{position:absolute;inset:0;display:grid;place-items:center;background:#d3dacd;z-index:4}.load-panel>img{position:absolute;width:100%;height:100%;object-fit:contain;opacity:.2;filter:blur(3px)}.load-copy{position:relative;max-width:380px;text-align:center;background:#f8f8eef2;box-shadow:0 20px 60px #2d4e2020;border:1px solid #fff;border-radius:20px;padding:28px 36px;margin:20px}.load-copy strong{display:block;font-size:18px;font-weight:500;margin-top:18px}.load-copy p{font-size:14px;line-height:1.7;color:#6f7c68;margin:10px 0 0}.loading-line{width:46px;height:46px;display:block;margin:auto;border:2px solid #bbc7b0;border-top-color:#334d37;border-radius:50%;animation:spin 1.2s linear infinite}.load-panel.failed .loading-line{animation:none;border-color:#a9885a}.load-copy button{border:1px solid #6b8064;background:#d7e0c9;color:#2c412d;border-radius:24px;padding:10px 18px;margin-top:18px;font-size:14px}@keyframes spin{to{transform:rotate(360deg)}}dialog{border:1px solid #81917b;background:#f4f4eb;color:#2c3d2e;border-radius:20px;max-width:560px;width:calc(100% - 36px);max-height:85svh;padding:0;box-shadow:0 20px 70px #0006}dialog::backdrop{background:#102319ab;backdrop-filter:blur(5px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:24px 26px 18px;border-bottom:1px solid #d3dacd}.dialog-head h2{font-size:21px;font-weight:550;margin:0}.close-button{font-size:27px;border:0;background:transparent;color:#62745b;padding:0;width:34px;height:34px}.dialog-content{padding:8px 26px 26px}.dialog-content section{margin-top:22px}.dialog-content h3{font-size:16px;font-weight:600;margin:0 0 8px}.dialog-content p{font-size:16px;line-height:1.9;color:#64725d;margin:8px 0}.precision-note{padding-top:18px;border-top:1px solid #d5ddce}.noscript{position:fixed;inset:25%;z-index:10;background:white;color:#243824;padding:40px}.workspace.cutaway-view .gesture-hint{left:auto;right:24px;transform:none}@media(max-width:1050px){.brand{min-width:155px}.brand-sub{display:none}.quiet-button{min-width:130px}.view-nav{grid-template-columns:85px minmax(0,1fr);gap:14px;padding-left:24px;padding-right:24px}.image-surface{padding:25px 65px}.view-card{flex-basis:112px}.workspace.cutaway-view .gesture-hint{display:none}}@media(max-width:650px){.app-shell{grid-template-rows:68px minmax(0,1fr) 128px;min-height:460px}.topbar{padding:0 15px;gap:10px}.brand{min-width:0;gap:8px}.brand-mark{width:35px;height:35px;font-size:14px}.brand h1{font-size:17px;margin:0;white-space:nowrap}.mode-switch{padding:3px}.mode-switch button{font-size:14px;padding:9px 12px}.quiet-button{min-width:0;font-size:0;padding:0}.quiet-button span{font-size:14px;margin:0;width:25px;height:25px}.view-heading{top:18px;left:20px}.view-heading h2{font-size:21px}.view-heading>span{font-size:12px}.model-tools{right:12px;padding:4px;border-radius:25px}.model-tools button{width:36px;height:36px;font-size:23px}.gesture-hint{bottom:15px;font-size:12px;padding:8px 12px}.desktop-hint{display:none}.touch-hint{display:inline}.view-nav{padding:11px 15px max(8px,env(safe-area-inset-bottom));grid-template-columns:minmax(0,1fr);gap:8px}.nav-label{flex-direction:row;justify-content:space-between;font-size:14px;gap:0}.nav-label span:last-child{font-size:12px}.view-list{gap:8px}.view-card{flex:0 0 96px;gap:3px;border-radius:8px;padding:3px}.view-card img{height:47px}.view-card span{font-size:14px;padding-bottom:2px}.image-surface{padding:55px 10px}.workspace.photo-mode .view-heading{padding:8px 12px;top:12px;left:12px}.workspace.photo-mode .view-heading h2{font-size:16px;margin-top:3px}.download-image{bottom:16px;right:15px;padding:9px 15px;font-size:14px}.view-note{left:12px;bottom:14px;padding:8px 12px;font-size:12px}.workspace.cutaway-view .gesture-hint{display:none}.load-copy{padding:24px}.dialog-head{padding:20px}.dialog-content{padding:0 20px 20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.loading-line{animation-duration:3s}}
/* Complete viewer tools extend the original forest/ivory palette. */
.header-actions{display:flex;align-items:center;gap:17px;min-width:195px;justify-content:flex-end}.header-actions .quiet-button{min-width:0}.help-icon{border:1px solid #728575;background:transparent;color:#d0dbcd;border-radius:50%;width:28px;height:28px;font-size:16px}.scene-toolbar{position:absolute;left:24px;bottom:20px;display:flex;gap:7px;z-index:3}.scene-toolbar button{font-size:14px;padding:10px 14px;border:1px solid #a1b29a;background:#f5f8eded;color:#2b4333;border-radius:24px}.scene-toolbar button[aria-pressed=true]{color:#f5f3dd;background:#335342;border-color:#335342}.gesture-hint{bottom:72px}.view-note{bottom:72px}.studio-panel{position:absolute;inset:0 0 0 auto;width:310px;background:#f2f4eaf5;border-left:1px solid #b4c2aa;z-index:5;color:#263d2f;display:flex;flex-direction:column;box-shadow:-8px 0 30px #1b3e1510}.studio-head{padding:21px 22px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d1dbc8}.studio-head span{font-size:12px;color:#70836b;letter-spacing:.08em}.studio-head h2{font-size:21px;font-weight:550;margin:6px 0 0}.studio-body{overflow-y:auto;padding:0 22px 24px;overscroll-behavior:contain}.studio-body section{padding:22px 0;border-bottom:1px solid #d4decf}.studio-body section:last-child{border:0}.studio-body h3{font-size:14px;margin:0 0 13px;font-weight:600}.choice-row{display:flex;gap:5px;background:#dde5d4;border-radius:10px;padding:4px}.choice-row button{flex:1;font-size:14px;color:#546a51;background:none;border:0;border-radius:7px;padding:9px 5px}.choice-row button[aria-pressed=true]{background:#fffef5;color:#233d2b;box-shadow:0 2px 5px #24351c12}.field-note{font-size:14px;line-height:1.75;color:#6b7d64;margin:11px 0 0}.layer-controls{display:grid;gap:12px}.layer-controls label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;cursor:pointer}.layer-controls input{width:18px;height:18px;accent-color:#426d48}.text-button{border:0;background:transparent;font-size:14px;color:#456c46;padding:15px 0 0}.workspace.panel-open .model-surface{right:310px}.workspace.panel-open .model-tools{right:330px}.workspace.panel-open .gesture-hint{left:calc((100% - 310px)/2)}.workspace.photo-mode .scene-toolbar{display:none}.toast{position:absolute;bottom:82px;left:50%;transform:translateX(-50%);max-width:calc(100% - 30px);padding:12px 20px;border-radius:12px;background:#213e32f5;color:#fffbed;font-size:14px;z-index:8;box-shadow:0 8px 22px #0002}.workspace[data-light=night]{background:radial-gradient(ellipse at 45% 45%,#344961,#18252e)}.workspace[data-light=dusk]{background:radial-gradient(ellipse at 45% 45%,#e8d8c1,#89929a)}.workspace[data-light=night] .view-heading{color:#f0f0e1}.workspace[data-light=night] .view-heading>span{color:#b6c5c4}
@media(max-width:900px){.header-actions{min-width:130px}.scene-toolbar button{padding:9px 11px}}
@media(max-width:650px){.header-actions{min-width:0;gap:8px}.header-actions .quiet-button{font-size:14px;white-space:nowrap}.help-icon{display:none}.scene-toolbar{left:12px;bottom:12px;gap:5px}.scene-toolbar button{font-size:14px;padding:9px 10px}.gesture-hint{bottom:61px}.view-note{bottom:61px}.studio-panel{top:auto;left:0;bottom:0;width:100%;max-height:65%;border-left:0;border-top:1px solid #b4c2aa;border-radius:20px 20px 0 0;box-shadow:0 -10px 35px #1a37122b}.studio-head{padding:14px 20px}.studio-body{padding:0 20px 20px}.studio-body section{padding:18px 0}.workspace.panel-open .model-surface{right:0}.workspace.panel-open .model-tools{right:12px}.workspace.panel-open .gesture-hint{left:50%}.workspace.panel-open .scene-toolbar,.workspace.panel-open .gesture-hint{display:none}.toast{bottom:66px}.topbar{gap:8px}.brand-mark{display:none}.mode-switch button{padding:9px 10px}}
.wide-button{display:block;width:100%;border:1px solid #adbfa3;border-radius:9px;background:#e7eddc;color:#345038;font-size:14px;padding:11px;margin-top:16px}.wide-button[aria-pressed=true]{background:#345c43;color:#fffbe8;border-color:#345c43}.measure-result{font-size:16px;font-variant-numeric:tabular-nums;padding:14px 0 0;color:#61441e}.model-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.model-label{position:absolute;transform:translate(-50%,-50%);white-space:nowrap;font-size:14px;line-height:1.4;padding:4px 8px;border-radius:5px;font-variant-numeric:tabular-nums;box-shadow:0 2px 8px #1b351a12}.dimension-label{background:#f5f8ffeb;color:#304f75;border:1px solid #849ebe}.region-label{background:#244934e8;color:#fff8db;border:1px solid #b0c49877;padding:5px 10px}.measurement-label{background:#ffdf9fed;color:#513508;border:1px solid #ca8f33;font-weight:600}.model-surface canvas.measuring{cursor:crosshair}.measure-guide{position:absolute;left:50%;top:22px;transform:translateX(-50%);z-index:4;background:#fbf1d9f5;border:1px solid #cbad6b;padding:9px 10px 9px 16px;border-radius:12px;display:flex;align-items:center;gap:16px;white-space:nowrap;color:#624716;font-size:14px;box-shadow:0 3px 20px #5f480f15}.measure-guide button{border:0;background:#e4cb90;color:#553e16;border-radius:7px;padding:8px 12px;font-size:14px}.workspace.panel-open .measure-guide{left:calc((100% - 310px)/2)}
@media(max-width:650px){.measure-guide{top:auto;bottom:65px;left:12px;right:12px;transform:none;justify-content:space-between;gap:8px;padding:8px 10px;font-size:14px;white-space:normal}.measure-guide button{white-space:nowrap}.workspace.panel-open .measure-guide{display:none}.model-label{font-size:14px;padding:3px 6px}}

.construction-link{color:#e7d8b5;text-decoration:none;font-size:13px;white-space:nowrap;padding:8px;border:1px solid #667c6b;border-radius:6px}.header-actions{gap:12px}@media(max-width:650px){.construction-link{font-size:11px;padding:6px}.header-actions{gap:6px}.topbar .brand-sub{display:none}.topbar{gap:8px;padding-left:12px;padding-right:12px}}

.embedded-viewer .app-shell{height:100dvh;min-height:260px;grid-template-rows:48px minmax(0,1fr) 54px}.embedded-viewer .topbar{padding:5px 10px;gap:8px}.embedded-viewer .brand,.embedded-viewer .construction-link,.embedded-viewer .help-icon{display:none}.embedded-viewer .mode-switch button{padding:6px 10px;font-size:11px}.embedded-viewer .header-actions .quiet-button{min-width:0;font-size:11px}.embedded-viewer .view-nav{padding:6px;display:block;min-height:0}.embedded-viewer .nav-label,.embedded-viewer .view-card img{display:none}.embedded-viewer .view-list{gap:5px;height:40px}.embedded-viewer .view-card{flex:0 0 auto;justify-content:center;padding:5px 8px;border-radius:5px}.embedded-viewer .view-card span{font-size:11px;padding:0}.embedded-viewer .view-heading{left:12px;top:10px}.embedded-viewer .view-heading h2{font-size:15px;margin-top:4px}.embedded-viewer .view-heading>span{font-size:9px}.embedded-viewer .model-tools{right:10px;padding:3px}.embedded-viewer .model-tools button{width:29px;height:29px;font-size:20px}.embedded-viewer .scene-toolbar{display:none}.embedded-viewer .gesture-hint{bottom:10px;font-size:9px;padding:5px 8px}.embedded-viewer .view-note{font-size:10px;left:10px;bottom:10px;padding:6px 9px}.embedded-viewer .load-copy{padding:15px}.embedded-viewer .load-copy strong{font-size:15px}.embedded-viewer .studio-panel{max-width:95%;width:285px}.embedded-viewer .studio-body{font-size:12px}

@media(max-width:390px){.topbar .mode-switch button{font-size:12px;padding:9px 8px}.topbar .header-actions .quiet-button{font-size:12px}.topbar .construction-link{font-size:10px;padding:6px 5px}}