:root{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#17394b;background:#eef2f3;font-synthesis:none;--ink:#17394b;--muted:#70838e;--brand:#16638d;--line:rgba(34,73,94,.11);--ease:cubic-bezier(.2,.7,.2,1)}
.model-hotspot{position:absolute;left:0;top:0;z-index:2;display:flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.9);border-radius:22px;background:rgba(246,251,253,.86);backdrop-filter:blur(12px);color:#39718c;padding:6px 11px 6px 6px;font-size:11px;box-shadow:0 3px 14px rgba(41,75,94,.08);white-space:nowrap}.model-hotspot span{display:grid;place-items:center;width:21px;height:21px;border-radius:50%;border:1px solid #aac7d4;font-size:16px;line-height:1}.model-hotspot:hover{background:#fff;color:#12638f;box-shadow:0 4px 20px rgba(33,100,141,.16)}body.capture .model-hotspot{display:none!important}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{min-height:100svh}button,input{-webkit-tap-highlight-color:transparent;font:inherit}button{color:inherit;cursor:pointer;border:0}button:focus-visible,input:focus-visible{outline:2px solid #2388bd;outline-offset:5px}button:disabled{opacity:.45;cursor:wait}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}.icon-library{position:absolute;width:0;height:0;overflow:hidden}
#viewport{position:absolute;inset:0;touch-action:none}#viewport canvas{display:block;width:100%;height:100%;outline:none}.ui{position:fixed;z-index:3;pointer-events:none}.ui button,.ui input,.ui label{pointer-events:auto}
.masthead{left:36px;right:36px;top:29px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand-lockup{display:flex;align-items:center;gap:22px}.brand-logo{width:104px;height:auto;object-fit:contain}.brand-divider{height:35px;width:1px;background:rgba(39,77,98,.16)}h1{font-size:21px;line-height:1.35;letter-spacing:.045em;margin:0;font-weight:500}.eyebrow{font-size:10px;letter-spacing:.22em;color:var(--muted);margin:7px 0 0}.utility-controls{display:flex;align-items:center;gap:4px;padding:5px 7px;border:1px solid rgba(255,255,255,.85);background:rgba(249,252,253,.70);backdrop-filter:blur(18px);border-radius:15px;box-shadow:0 3px 20px rgba(32,61,79,.035)}.utility-button,.icon-button{display:flex;align-items:center;justify-content:center;gap:8px;height:36px;background:transparent;border-radius:9px;transition:background .2s,color .2s}.utility-button{font-size:12px;padding:0 12px}.icon-button{width:36px}.icon-button svg{width:19px;height:19px}.utility-button:hover,.icon-button:hover{background:#fff;color:#155c85}.utility-button[aria-pressed=true]{color:#12628d;background:#e5f0f5}.utility-divider{height:18px;width:1px;background:var(--line);margin:0 2px}
.view-caption{left:42px;top:142px;display:flex;gap:13px;max-width:300px}.caption-rule{width:2px;height:37px;background:linear-gradient(#4b97bb,#adc7d3);margin-top:3px}.view-caption h2{font-weight:500;font-size:17px;line-height:1.3;margin:0 0 9px;letter-spacing:.025em}.view-caption p{font-size:11px;line-height:1.75;color:#6b818e;margin:0;max-width:250px}
.interaction-area{bottom:max(26px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;width:min(716px,calc(100% - 48px));gap:12px}.gesture-hint{display:flex;align-items:center;gap:7px;color:#7d8f99;font-size:10px;letter-spacing:.015em;line-height:1.5;margin:0;text-shadow:0 1px 4px #fff}.gesture-hint svg{width:13px;height:13px;stroke-width:1.35}.gesture-hint b{font-weight:400;padding:0 7px;opacity:.65}.control-dock{width:100%;border:1px solid rgba(255,255,255,.94);border-radius:19px;background:rgba(249,252,253,.88);backdrop-filter:blur(22px);box-shadow:0 10px 36px rgba(31,62,81,.09),0 1px 2px rgba(31,62,81,.04);pointer-events:auto;padding:7px 10px 10px}.view-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding-bottom:7px;border-bottom:1px solid var(--line)}.view-button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:47px;padding:6px 10px;border-radius:12px;background:transparent;font-size:12px;line-height:1.4;white-space:nowrap;transition:background .25s var(--ease),color .25s,box-shadow .25s}.view-button svg{width:22px;height:22px;stroke-width:1.35;color:#627f90}.view-button:hover{background:rgba(231,240,245,.75);color:#125c84}.view-button[aria-pressed=true],.view-button.active{background:#1e5f82;color:#fff;box-shadow:0 3px 9px rgba(20,72,104,.14)}.view-button[aria-pressed=true] svg,.view-button.active svg{color:#c9e8f7}
.detail-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 5px 0}.opening-controls{display:flex;align-items:center;gap:7px}.toggle-button{display:flex;align-items:center;gap:6px;height:30px;padding:0 8px;background:rgba(225,234,239,.44);border-radius:8px;color:#567384;font-size:10px;white-space:nowrap;transition:background .2s,color .2s}.toggle-button svg{width:14px;height:14px;stroke-width:1.4}.toggle-dot{height:4px;width:4px;background:#9eafb8;border-radius:50%;margin-left:3px}.toggle-button:hover{background:#e4eef3;color:#185e85}.toggle-button[aria-pressed=true]{background:#e0eef5;color:#17668e}.toggle-button[aria-pressed=true] .toggle-dot{background:#2588b8;box-shadow:0 0 0 3px rgba(39,129,172,.07)}.explode-control{display:flex;align-items:center;gap:10px;flex:1;max-width:270px;color:#66808f;font-size:10px;white-space:nowrap}.explode-control input{width:100%;min-width:40px;flex:1;margin:0;height:16px;accent-color:#1b6b96;background:transparent;cursor:ew-resize}.explode-control output{font-size:10px;font-variant-numeric:tabular-nums;text-align:right;min-width:28px;color:#496b7e}
.loading-screen{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 45%,#fafcfc 0,#eef2f3 65%);transition:opacity .55s var(--ease),visibility .55s}.loading-screen.hidden,.loading-screen.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.loading-content{text-align:center;width:min(270px,70vw);padding-bottom:50px}.loading-content img{width:100px;height:auto;opacity:.9}.loading-title{font-size:14px;font-weight:400;letter-spacing:.08em;margin:29px 0 17px}.loading-track{height:2px;width:100%;border-radius:2px;background:#dbe4e8;overflow:hidden}.loading-track span{display:block;height:100%;width:0;background:#2d80ac;transition:width .25s var(--ease)}.loading-note{font-size:10px;color:#8a9da7;margin-top:13px;letter-spacing:.04em}.load-error{position:fixed;z-index:30;left:50%;top:50%;transform:translate(-50%,-50%);padding:28px 38px;background:rgba(250,253,253,.97);border:1px solid #d4e0e6;border-radius:15px;box-shadow:0 10px 60px rgba(37,71,90,.1);text-align:center}.load-error strong{font-size:14px;font-weight:500}.load-error p{font-size:12px;color:#748b98;margin-bottom:0}[hidden]{display:none!important}
.gesture-hint{color:#edf6fc;text-shadow:none;background:rgba(19,44,64,.74);border:1px solid rgba(219,237,249,.2);border-radius:20px;padding:4px 11px;backdrop-filter:blur(8px)}
body.capture .ui,body.capture #loading,body.capture #loadError{display:none!important}body.capture #viewport{inset:0}
@media(min-width:1500px){.masthead{left:48px;right:48px;top:35px}.view-caption{left:54px;top:156px}.interaction-area{bottom:34px}}
@media(max-width:860px){.masthead{left:22px;right:22px;top:20px}.brand-lockup{gap:15px}.brand-logo{width:86px}.brand-divider{height:31px}h1{font-size:17px;letter-spacing:.015em}.eyebrow{font-size:9px;letter-spacing:.15em;margin-top:6px}.utility-button{padding:0 9px}.utility-button span{display:none}.utility-controls{padding:3px 5px;border-radius:12px}.utility-button,.icon-button{width:32px;height:32px}.view-caption{left:28px;top:117px;max-width:245px}.view-caption h2{font-size:15px}.view-caption p{font-size:10px;max-width:210px}.interaction-area{width:min(660px,calc(100% - 32px));bottom:max(17px,env(safe-area-inset-bottom));gap:9px}}
@media(max-width:560px){.masthead{top:max(17px,env(safe-area-inset-top));left:17px;right:15px;gap:12px;align-items:flex-start}.brand-lockup{gap:11px;align-items:center}.brand-logo{width:65px}.brand-divider{height:30px}h1{font-size:14px;line-height:1.5;letter-spacing:0}.eyebrow{font-size:8px;letter-spacing:.12em;margin-top:3px}.utility-controls{gap:1px;padding:2px;border-radius:10px}.utility-divider{display:none}.utility-button,.icon-button{width:27px;height:29px;padding:0}.utility-button svg,.icon-button svg{width:17px;height:17px}.view-caption{top:104px;left:20px;gap:10px;max-width:205px}.caption-rule{height:33px}.view-caption h2{font-size:14px;margin-bottom:5px}.view-caption p{font-size:9px;line-height:1.65;max-width:185px}.interaction-area{width:calc(100% - 24px);bottom:max(12px,env(safe-area-inset-bottom));gap:7px}.gesture-hint{font-size:9px;gap:5px}.gesture-hint b{padding:0 4px}.gesture-hint svg{width:12px;height:12px}.control-dock{border-radius:15px;padding:5px 6px 9px}.view-tabs{gap:2px;padding-bottom:6px}.view-button{min-height:55px;gap:5px;flex-direction:column;font-size:10px;padding:5px 2px;border-radius:10px}.view-button svg{height:21px;width:21px}.detail-controls{gap:10px;padding:9px 3px 0;flex-wrap:wrap}.opening-controls{gap:5px;flex:1}.toggle-button{font-size:9px;height:27px;padding:0 6px;gap:4px}.toggle-button svg{height:12px;width:12px}.toggle-dot{height:3px;width:3px;margin-left:1px}.explode-control{gap:6px;max-width:none;flex:1.1;font-size:9px}.explode-control output{font-size:9px;min-width:25px}.explode-control input{min-width:30px}.loading-content{padding-bottom:70px}}
@media(max-width:390px){.brand-logo{width:54px}.brand-lockup{gap:8px}h1{font-size:12px}.eyebrow{font-size:7px}.utility-button,.icon-button{width:24px}.detail-controls{gap:8px}.explode-control>span{font-size:8px}.toggle-button{padding:0 4px;font-size:8px}.toggle-button svg{display:none}}
@media(max-height:570px) and (min-width:561px){.masthead{top:15px;left:20px;right:20px}.brand-logo{width:74px}h1{font-size:16px}.eyebrow{font-size:8px;margin-top:4px}.view-caption{top:90px;left:25px}.view-caption p{max-width:170px}.interaction-area{bottom:11px;gap:5px;width:min(640px,calc(100% - 40px))}.control-dock{padding:5px 8px 7px;border-radius:15px}.view-button{min-height:37px;font-size:11px}.view-button svg{height:18px;width:18px}.detail-controls{padding-top:6px}.toggle-button{height:25px}.gesture-hint{font-size:9px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}