:root{color-scheme:light;font-family:Inter,Microsoft YaHei,PingFang SC,system-ui,sans-serif;--ink: #14212d;--muted: #53616e;--paper: #f7f2e7;--teal: #237d82;--teal-deep: #155e63;--amber: #d76d2c;--green: #41c486;--red: #c23e31;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body,#app{width:100%;height:100%;height:100dvh;margin:0;overflow:hidden}body{background:#0e171f;color:var(--ink)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}[hidden]{display:none!important}#camera-feed,.ambient-background{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}#camera-feed{z-index:0;display:block;touch-action:none}.ambient-background{z-index:-2;background:radial-gradient(circle at 22% 16%,rgba(55,151,156,.32),transparent 33%),radial-gradient(circle at 80% 78%,rgba(216,109,44,.22),transparent 34%),linear-gradient(145deg,#101c27,#172634 53%,#0a1219)}.glass{border:1px solid rgba(255,255,255,.46);background:#faf7eff0;box-shadow:0 24px 70px #00000052;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.welcome{position:absolute;z-index:20;top:50%;left:50%;width:min(440px,calc(100% - 30px));max-height:calc(100dvh - 30px);padding:28px;overflow:auto;border-radius:28px;transform:translate(-50%,-50%)}.project-mark{display:grid;width:54px;height:54px;margin-bottom:18px;place-items:center;border-radius:16px;color:#fff;background:linear-gradient(145deg,var(--teal),var(--teal-deep));box-shadow:0 13px 28px #237d8247;font-weight:850}.eyebrow{margin:0 0 6px;color:var(--teal-deep);font-size:.69rem;font-weight:800;letter-spacing:.12em}h1,h2,p{margin-top:0}h1{margin-bottom:10px;font-size:clamp(1.72rem,8vw,2.25rem);line-height:1.1}.lead{margin-bottom:20px;color:var(--muted);font-size:.91rem;line-height:1.65}.steps{display:grid;gap:10px;margin:0 0 20px;padding:0;list-style:none}.steps li{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start}.steps li>span{display:grid;width:28px;height:28px;place-items:center;border-radius:50%;color:#fff;background:var(--ink);font-size:.72rem;font-weight:800}.steps p{margin:3px 0 0;color:var(--muted);font-size:.78rem;line-height:1.48}.welcome-actions{display:grid;grid-template-columns:1.35fr 1fr;gap:9px}.primary-button,.secondary-button,.anchor-button{min-height:48px;border-radius:14px;cursor:pointer;font-weight:800}.primary-button{border:0;color:#fff;background:linear-gradient(135deg,var(--amber),#bd4f21)}.secondary-button{border:1px solid rgba(20,33,45,.16);color:var(--ink);background:#fff}.primary-button:disabled,.secondary-button:disabled,.anchor-button:disabled{cursor:wait;opacity:.55}.requirements{margin:13px 2px 0;color:#6d7881;font-size:.66rem;line-height:1.45}.message{margin:13px 0 0;padding:10px 12px;border-radius:10px;font-size:.75rem;line-height:1.5}.message.error{color:#7d281d;background:#ffe0d8}.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:#091016b8;box-shadow:0 8px 26px #0000003d;backdrop-filter:blur(13px);-webkit-backdrop-filter:blur(13px);font-size:.75rem;font-weight:750}.brand-chip{padding:10px 14px}.brand-dot,.status-dot{width:8px;height:8px;border-radius:50%;background:#f2a35b}.round-button{display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(255,255,255,.25);border-radius:50%;color:#fff;background:#091016b8;cursor:pointer;font-size:1rem;font-weight:850}.round-button.dark{color:var(--ink);background:#14212d12;border-color:#14212d1f}.loading{position:absolute;z-index:30;top:50%;left:50%;width:min(340px,calc(100% - 40px));padding:27px;border-radius:24px;transform:translate(-50%,-50%);text-align:center}.loading h2{margin-bottom:7px;font-size:1.15rem}.loading p{margin-bottom:15px;color:var(--muted);font-size:.76rem}.spinner{width:38px;height:38px;margin:0 auto 16px;border:4px solid rgba(20,33,45,.12);border-top-color:var(--teal);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress-track{height:6px;overflow:hidden;border-radius:999px;background:#14212d1a}#loading-progress{width:5%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--amber));transition:width .18s ease}.scan-guide{position:absolute;z-index:12;top:var(--scan-workspace-top, 118px);right:0;bottom:var(--scan-workspace-bottom, 190px);left:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding:0 12px;color:#fff;text-align:center;pointer-events:none}.scan-guide p{display:inline-block;max-width:min(330px,calc(100vw - 32px));margin:0 0 16px;padding:9px 13px;border-radius:999px;background:#050a0eb3;font-size:.72rem;line-height:1.4}.status-chip{position:absolute;z-index:18;top:calc(var(--safe-top) + 68px);left:50%;padding:9px 13px;transform:translate(-50%);white-space:nowrap}#app[data-anchor-state=stable] .status-dot{background:var(--green);box-shadow:0 0 0 4px #41c48629}#app[data-anchor-state=locked] .status-dot{background:#67a8ff;box-shadow:0 0 0 4px #67a8ff2b}#app[data-anchor-state=limited] .status-dot{background:#ffca63}.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:590px;margin:auto;padding:9px;border-radius:22px}.mode-switch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.mode-button{display:grid;min-height:52px;grid-template-columns:28px minmax(0,1fr);gap:7px;align-items:center;padding:7px;border:1px solid transparent;border-radius:14px;color:var(--muted);background:transparent;cursor:pointer;text-align:left}.mode-button.is-active{border-color:#14212d14;background:#fff;box-shadow:0 6px 16px #14212d1a}.mode-button strong,.mode-button small{display:block}.mode-button strong{color:var(--ink);font-size:.77rem}.mode-button small{margin-top:1px;font-size:.56rem}.mode-icon{position:relative;display:block;width:28px;height:28px;border-radius:8px;background:#237d821f}.insert-icon:after{content:"";position:absolute;top:7px;right:6px;bottom:5px;left:11px;border-radius:2px 6px 3px 3px;background:var(--amber);transform:skewY(-15deg)}.raw-icon:after,.complete-icon:after{content:"";position:absolute;top:5px;right:7px;bottom:5px;left:7px;border:3px solid #9b805d;border-top-width:5px;border-radius:3px}.raw-icon:after{clip-path:polygon(0 0,100% 0,100% 32%,70% 50%,100% 67%,100% 100%,0 100%)}.complete-icon:after{border-color:var(--teal)}.anchor-button{display:flex;width:100%;margin-top:8px;align-items:center;justify-content:center;gap:9px;border:0;color:#fff;background:linear-gradient(135deg,var(--teal),var(--teal-deep))}#app[data-anchor-state=locked] .anchor-button{background:linear-gradient(135deg,#315b85,#1c3e63)}.anchor-symbol{position:relative;width:17px;height:17px;border:2px solid currentColor;border-radius:50%}.anchor-symbol:after{content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;border-radius:50%;background:currentColor;transform:translate(-50%,-50%)}.session-actions{display:flex;justify-content:center;gap:12px}.session-actions button{padding:8px 10px 3px;border:0;color:#66727c;background:transparent;cursor:pointer;font-size:.66rem}.help-dialog{width:min(440px,calc(100% - 28px));max-height:calc(100dvh - 34px);margin:auto;padding:22px;overflow:auto;border:1px solid rgba(255,255,255,.48);border-radius:26px;color:var(--ink);background:#faf7effa;box-shadow:0 26px 76px #0006}.help-dialog::backdrop{background:#05090dbd;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.dialog-heading h2{margin-bottom:15px;font-size:1.42rem}.help-dialog img{display:block;width:min(150px,45vw);margin:0 auto 17px;border:5px solid #fff;box-shadow:0 8px 20px #14212d26}.help-dialog ol{display:grid;gap:9px;margin:0 0 18px;padding-left:21px;color:var(--muted);font-size:.78rem;line-height:1.55}.sheet-link{display:block;padding:13px;border-radius:13px;color:#fff;background:var(--teal);text-align:center;text-decoration:none;font-size:.8rem;font-weight:800}.engine-notice{margin:13px 1px 0;color:#6d7780;font-size:.61rem;line-height:1.5}.engine-notice a{color:var(--teal-deep)}.debug-panel{position:absolute;z-index:60;top:112px;right:8px;width:min(370px,calc(100% - 16px));max-height:35vh;padding:9px;overflow:auto;border-radius:10px;color:#d2ffe5;background:#000000c7;font:10px/1.45 ui-monospace,monospace}.debug-panel output{display:block;white-space:pre-wrap}#app[data-session=preview] .ambient-background{z-index:-1}@media (max-height: 700px){.welcome{padding:20px 22px}.project-mark{width:44px;height:44px;margin-bottom:12px}.lead{margin-bottom:13px}.steps{gap:7px;margin-bottom:14px}.controls{padding:7px;border-radius:19px}.mode-button{min-height:46px;padding:5px 6px}.anchor-button{min-height:44px;margin-top:6px}.session-actions button{padding-top:6px}}@media (max-width: 380px){.welcome-actions{grid-template-columns:1fr}.mode-button{grid-template-columns:1fr;justify-items:center;text-align:center}.mode-icon{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}