:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;--ink: #15222f;--ink-soft: #415161;--paper: #f4eedf;--amber: #d86a28;--amber-light: #f0a257;--teal: #287d83;--panel: rgba(250, 247, 239, .94);--panel-border: rgba(255, 255, 255, .45);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--ink)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}[hidden]{display:none!important}#ar-container{position:relative;width:100%;height:100%;min-height:100dvh;overflow:hidden;isolation:isolate}#ar-container>video{z-index:-3!important}#ar-container>canvas{z-index:-2!important}#fallback-background{position:absolute;inset:0;z-index:-4;background:radial-gradient(circle at 19% 18%,rgba(216,106,40,.28),transparent 35%),radial-gradient(circle at 84% 77%,rgba(40,125,131,.28),transparent 40%),linear-gradient(145deg,#172532,#0b1219)}#fallback-background:before{content:"";position:absolute;inset:0;opacity:.24;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 75%)}.panel{border:1px solid var(--panel-border);background:var(--panel);color:var(--ink);box-shadow:0 24px 70px #00000052;backdrop-filter:blur(18px) saturate(1.1);-webkit-backdrop-filter:blur(18px) saturate(1.1)}.welcome-panel{position:absolute;left:max(18px,env(safe-area-inset-left));right:max(18px,env(safe-area-inset-right));top:50%;width:min(440px,calc(100% - 36px));margin:auto;padding:28px 24px 23px;border-radius:28px;transform:translateY(-50%)}.project-mark{display:grid;width:52px;height:52px;margin-bottom:22px;place-items:center;border-radius:15px;color:#fff;font-weight:800;letter-spacing:.04em;background:linear-gradient(145deg,var(--amber),#b94718);box-shadow:0 12px 25px #b1471847}.eyebrow{margin:0 0 7px;color:var(--teal);font-size:.7rem;font-weight:800;letter-spacing:.17em}h1,h2,p{margin-top:0}h1{margin-bottom:10px;font-size:clamp(1.75rem,8vw,2.45rem);line-height:1.08;letter-spacing:-.04em}.lead{margin-bottom:22px;color:var(--ink-soft);font-size:.94rem;line-height:1.65}.setup-list{display:grid;gap:11px;margin:0 0 24px;padding:0;list-style:none}.setup-list li{display:grid;grid-template-columns:27px 1fr;gap:10px;align-items:center}.setup-list li>span{display:grid;width:27px;height:27px;place-items:center;border:1px solid rgba(21,34,47,.16);border-radius:50%;color:var(--teal);font-size:.72rem;font-weight:800}.setup-list p{margin:0;color:#344454;font-size:.82rem;line-height:1.4}.primary-button{display:flex;width:100%;min-height:56px;align-items:center;justify-content:center;gap:9px;border:0;border-radius:16px;color:#fff;background:linear-gradient(135deg,var(--amber),#bd4f1f);box-shadow:0 14px 27px #ba4b1d45;cursor:pointer;font-weight:750}.primary-button:disabled{cursor:wait;opacity:.68}.primary-button svg{width:20px;height:20px;fill:currentColor}.compatibility-message{margin:15px 0 0;padding:10px 12px;border-radius:10px;color:#772d16;background:#ffe2d1;font-size:.78rem;line-height:1.5}.top-bar{position:absolute;z-index:20;top:calc(var(--safe-top) + 12px);left:max(14px,env(safe-area-inset-left));right:max(14px,env(safe-area-inset-right));display:flex;align-items:center;justify-content:space-between}.brand-chip,.status-chip{display:flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.24);border-radius:999px;color:#fff;background:#0c141cb3;box-shadow:0 8px 28px #0003;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font-size:.76rem;font-weight:700}.brand-chip{padding:10px 14px}.brand-dot,.status-dot{width:8px;height:8px;border-radius:50%;background:var(--amber-light);box-shadow:0 0 0 4px #f0a25726}.icon-button{display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(255,255,255,.24);border-radius:50%;color:#fff;background:#0c141cb3;cursor:pointer;font-size:1.05rem;font-weight:800;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.icon-button.dark{flex:0 0 auto;border-color:#15222f24;color:var(--ink);background:#15222f0f;font-size:1.4rem}.tracking-guide{position:absolute;z-index:10;top:50%;left:50%;width:min(70vw,300px);transform:translate(-50%,-53%);color:#fff;text-align:center;pointer-events:none}.guide-corners{position:relative;width:100%;aspect-ratio:1;margin-bottom:17px;border-radius:24px;background:linear-gradient(to right,#fff 34px,transparent 34px) 0 0,linear-gradient(to bottom,#fff 34px,transparent 34px) 0 0,linear-gradient(to left,#fff 34px,transparent 34px) 100% 0,linear-gradient(to bottom,#fff 34px,transparent 34px) 100% 0,linear-gradient(to right,#fff 34px,transparent 34px) 0 100%,linear-gradient(to top,#fff 34px,transparent 34px) 0 100%,linear-gradient(to left,#fff 34px,transparent 34px) 100% 100%,linear-gradient(to top,#fff 34px,transparent 34px) 100% 100%;background-repeat:no-repeat;background-size:4px 70px,70px 4px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4))}.guide-corners:after{content:"";position:absolute;top:3%;left:4%;width:92%;height:2px;background:linear-gradient(90deg,transparent,var(--amber-light),transparent);box-shadow:0 0 12px var(--amber);animation:scan 2.5s ease-in-out infinite}@keyframes scan{0%,to{transform:translateY(0);opacity:.4}50%{transform:translateY(calc(min(70vw,300px)*.9));opacity:1}}.tracking-guide p{margin:0;padding:10px 14px;border-radius:999px;background:#080e13a6;font-size:.78rem;line-height:1.4;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.loading-panel{position:absolute;z-index:30;top:50%;left:50%;width:min(330px,calc(100% - 44px));padding:28px;border-radius:24px;transform:translate(-50%,-50%);text-align:center}.spinner{width:38px;height:38px;margin:0 auto 17px;border:4px solid rgba(21,34,47,.13);border-top-color:var(--teal);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-panel p{margin-bottom:14px;font-size:.86rem;font-weight:700}.progress-track{height:6px;overflow:hidden;border-radius:999px;background:#15222f1a}.progress-value{width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--amber));transition:width .18s ease}#loading-detail{margin:9px 0 0;color:var(--ink-soft);font-size:.72rem;font-variant-numeric:tabular-nums}.status-chip{position:absolute;z-index:15;top:calc(var(--safe-top) + 70px);left:50%;padding:9px 13px;transform:translate(-50%);white-space:nowrap}.status-chip.is-tracking .status-dot{background:#57d19a;box-shadow:0 0 0 4px #57d19a29}.controls{position:absolute;z-index:20;left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right));bottom:calc(var(--safe-bottom) + 12px);max-width:560px;margin:auto;padding:9px;border-radius:22px}.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:7px}.mode-button{display:grid;grid-template-columns:34px 1fr;gap:9px;align-items:center;min-height:60px;padding:8px 10px;border:1px solid transparent;border-radius:15px;color:var(--ink-soft);background:transparent;cursor:pointer;text-align:left}.mode-button strong,.mode-button small{display:block}.mode-button strong{color:var(--ink);font-size:.86rem}.mode-button small{margin-top:2px;font-size:.62rem}.mode-button.is-active{border-color:#15222f14;background:#fff;box-shadow:0 7px 18px #15222f1a}.mode-icon{position:relative;display:block;width:32px;height:32px;border-radius:9px;background:#287d831f}.insert-icon:before{content:"";position:absolute;inset:8px 7px 6px 12px;border-radius:2px 7px 3px 3px;background:var(--amber);transform:skewY(-15deg)}.complete-icon:before{content:"";position:absolute;inset:6px 9px;border:3px solid var(--teal);border-top-width:5px;border-radius:3px}.stop-button{width:100%;margin-top:7px;padding:8px;border:0;color:#66717b;background:transparent;cursor:pointer;font-size:.68rem}.help-dialog{width:min(420px,calc(100% - 30px));max-height:calc(100dvh - 40px);margin:auto;padding:22px;overflow:auto;border:1px solid rgba(255,255,255,.45);border-radius:25px;color:var(--ink);background:#faf7eff7;box-shadow:0 26px 75px #00000061}.help-dialog::backdrop{background:#05090db8;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between}.dialog-heading h2{margin:0 0 16px;font-size:1.45rem}.help-dialog img{display:block;width:min(210px,64vw);margin:2px auto 18px;border:6px solid #fff;box-shadow:0 9px 22px #15222f26}.help-dialog ul{display:grid;gap:9px;margin:0 0 20px;padding-left:20px;color:var(--ink-soft);font-size:.8rem;line-height:1.5}.sheet-link{display:block;padding:13px;border-radius:13px;color:#fff;background:var(--teal);text-align:center;text-decoration:none;font-size:.82rem;font-weight:750}.debug-panel{position:absolute;z-index:50;right:8px;bottom:145px;width:min(350px,calc(100% - 16px));max-height:34vh;padding:10px;overflow:auto;border:1px solid rgba(255,255,255,.2);border-radius:10px;color:#bfffdc;background:#000000c7;font:11px/1.45 ui-monospace,monospace;pointer-events:none}.debug-panel p{margin-bottom:5px;color:#fff;font-weight:700}.debug-panel output{white-space:pre-wrap}@media (max-height: 690px){.welcome-panel{padding:20px 21px 18px}.project-mark{width:42px;height:42px;margin-bottom:13px}.lead{margin-bottom:14px}.setup-list{gap:7px;margin-bottom:16px}}@media (min-width: 720px){.welcome-panel{padding:32px}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}