:root{
  color-scheme:dark;
  --cream:#fff3de;--muted:#d9d5d6;--gold:#ffe5aa;--navy:#213959;--line:rgba(255,235,191,.18);
  --safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);
  --safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px);
  --header-band:56px;--footer-band:42px;
  --header-height:calc(var(--header-band) + var(--safe-top));
  --footer-height:calc(var(--footer-band) + var(--safe-bottom));
  font-family:ui-sans-serif,system-ui,-apple-system,"PingFang SC","Microsoft Yahei",sans-serif;font-synthesis:none
}
*{box-sizing:border-box}
html{height:100%;overflow:hidden;overscroll-behavior:none}
body{margin:0;height:100dvh;overflow:hidden;background:#1f3557;color:var(--cream);display:grid;grid-template-rows:var(--header-height) minmax(0,1fr) var(--footer-height);position:relative}
body.is-locked{overflow:hidden}
button,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}:focus-visible{outline:2px solid #fff1b9;outline-offset:5px}
[hidden]{display:none!important}
.skip-link{position:fixed;top:-65px;left:14px;padding:12px 16px;z-index:200;background:#fff;color:#192b43}.skip-link:focus{top:15px}
body.is-locked .skip-link{display:none}

.environment{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;background:#182946}
.environment img{display:block;position:absolute;left:0;top:0;max-width:none;transform-origin:0 0;transition:none}
body:not(.scene-ready) .environment img,body:not(.scene-ready) .tree-frame,body:not(.scene-ready) .environment-hotspots{visibility:hidden}

.topbar,.footer,.landing{position:relative;z-index:2}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:var(--safe-top) max(clamp(14px,3vw,30px),calc(var(--safe-right) + 12px)) 0 max(clamp(14px,3vw,30px),calc(var(--safe-left) + 12px));background:linear-gradient(180deg,rgba(19,36,63,.54),rgba(19,36,63,.10))}
.wordmark{font-size:13px;letter-spacing:.19em;font-weight:700;white-space:nowrap;text-shadow:0 2px 12px #1b2d4e}.wordmark-symbol{font-size:22px;color:#fce2a1;margin-right:8px}.wordmark-soft{font-weight:400;opacity:.75}.top-note{font-size:10px;letter-spacing:.22em;color:#e1e3e7;opacity:.84}.top-action{background:rgba(18,30,54,.18);border:1px solid rgba(246,227,184,.3);border-radius:30px;color:#f9e7cc;padding:10px 16px;font-size:11px;letter-spacing:.05em}.top-action:hover{background:rgba(247,228,192,.15)}
.landing{min-height:0;min-width:0;overflow:hidden}
.scene{position:relative;height:100%;width:calc(100% - var(--safe-left) - var(--safe-right));margin-inline:var(--safe-left) var(--safe-right);overflow:hidden}
.scene-stage{position:absolute;inset:0;max-height:100%}

.bottom-hint{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);white-space:nowrap;max-width:calc(100% - 24px);font-size:12px;letter-spacing:.12em;text-align:center;color:rgba(255,235,213,.92);text-shadow:0 2px 11px rgba(35,24,36,.95)}
.memory-panel{position:absolute;z-index:6;right:max(18px,5vw);top:50%;transform:translateY(-50%);width:min(356px,calc(100% - 28px));background:rgba(254,242,224,.96);color:#494247;padding:38px 31px 25px;border-radius:14px;box-shadow:0 24px 95px rgba(9,15,32,.45);backdrop-filter:blur(18px);max-height:calc(100% - 12px);overflow:auto}
.panel-appearing{animation:panel-in .4s cubic-bezier(.14,.85,.21,1) both}.panel-close{position:absolute;right:15px;top:12px;background:none;border:0;color:#777;font-size:27px}.panel-symbol{color:#b3874d;font-size:29px;margin-bottom:14px}.panel-overline{font-size:9px;letter-spacing:.22em;color:#967950}.memory-panel h2{margin:13px 0 10px;font-family:Georgia,"Songti SC",serif;font-weight:500;font-size:36px;color:#3f3640}.panel-subtitle{margin:0;color:#786463;font-size:15px}.panel-note{margin:18px 0 26px;line-height:1.75;color:#615358;font-size:14px}.panel-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px;color:#7c6860}.enter-link{display:inline-flex;align-items:center;gap:8px;background:#46313a;color:#f8e8d6;border-radius:999px;padding:12px 18px}.enter-link:hover{background:#5c404b}

.footer{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 max(clamp(14px,3vw,30px),calc(var(--safe-right) + 12px)) var(--safe-bottom) max(clamp(14px,3vw,30px),calc(var(--safe-left) + 12px));background:linear-gradient(180deg,rgba(39,26,41,.08),rgba(39,26,41,.38));backdrop-filter:blur(6px);color:#f1dccc;font-size:9px;letter-spacing:.08em}

.lock-overlay{position:fixed;inset:0;z-index:10;display:grid;place-items:center;padding:max(16px,calc(var(--safe-top) + 12px)) max(16px,calc(var(--safe-right) + 12px)) max(16px,calc(var(--safe-bottom) + 12px)) max(16px,calc(var(--safe-left) + 12px));background:rgba(247,240,230,.52);backdrop-filter:blur(9px);color:#584f4b}
.lock-controls{width:min(360px,100%);padding:6px;text-align:center;max-height:calc(100dvh - var(--safe-top) - var(--safe-bottom) - 24px);overflow:auto}
.lock-emblem{display:grid;place-items:center;margin-bottom:24px;color:#64584e;filter:drop-shadow(0 2px 6px rgba(255,255,255,.25))}
.unlock-form{margin:0}.password-row{display:flex;gap:10px}.password-row input{flex:1;min-width:0;border-radius:10px;border:1px solid rgba(91,78,66,.22);background:rgba(255,253,249,.67);padding:14px 16px;color:#4e423e;box-shadow:0 3px 20px rgba(64,51,41,.05)}.password-row input::placeholder{color:#8a7d71}.password-row button{border:1px solid rgba(91,78,66,.16);border-radius:10px;padding:0 20px;background:rgba(250,244,230,.9);color:#58463a;white-space:nowrap}.password-row button:hover{background:#fff7e4}.password-row button:disabled{opacity:.6;cursor:progress}.lock-error{min-height:1.4em;margin:12px 0 0;font-size:13px;color:#823e37}.lock-error:empty{visibility:hidden}
.lock-overlay :focus-visible{outline-color:#9f8460;outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}

@keyframes panel-in{from{opacity:0;transform:translateY(calc(-50% + 6px)) scale(.97)}to{opacity:1;transform:translateY(-50%) scale(1)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

@media(max-width:920px){
  .top-note{display:none}
  .memory-panel{left:50%;right:auto;top:auto;bottom:18px;transform:translateX(-50%);width:min(360px,calc(100% - 24px));max-height:min(54vh,420px)}
  .panel-appearing{animation:panel-in-mobile .4s cubic-bezier(.14,.85,.21,1) both}
}
@keyframes panel-in-mobile{from{opacity:0;transform:translate(-50%,6px) scale(.97)}to{opacity:1;transform:translate(-50%,0) scale(1)}}

@media(max-width:650px){
  :root{--header-band:46px;--footer-band:38px}
  .topbar{padding-top:var(--safe-top)}.footer{padding-bottom:var(--safe-bottom)}
  .top-action{padding:8px 12px}.top-action span{display:none}
  .wordmark{font-size:11px;letter-spacing:.14em}.wordmark-symbol{font-size:16px;margin-right:4px}
  .footer{justify-content:center}
  .bottom-hint{font-size:9px;letter-spacing:.04em;bottom:6px}
  .memory-panel{bottom:10px;width:min(340px,calc(100% - 18px));padding:21px 22px 16px}
  .lock-controls{width:min(320px,100%)}
}
@media(max-height:520px){
  :root{--header-band:40px;--footer-band:32px}
  .bottom-hint{display:none}
  .topbar,.footer{font-size:8px}.memory-panel{max-height:min(48vh,320px)}
  .lock-emblem{margin-bottom:14px}.lock-emblem svg{width:32px;height:32px}
}


@media(max-width:920px){.footer>span:last-child{display:none}}