:root{
  --ink:#0e1216;
  --paper:#f2ede3;
  --brass:#c9a266;
  --brass-dim:rgba(201,162,102,.55);
  --glass:rgba(13,17,21,.52);
  --glass-strong:rgba(13,17,21,.72);
  --line:rgba(255,255,255,.13);
  --line-soft:rgba(255,255,255,.07);
  --txt:rgba(255,255,255,.9);
  --txt-dim:rgba(255,255,255,.55);
  --sans:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --serif:"Cormorant Garamond","Times New Roman",Georgia,"Songti SC","Noto Serif CJK SC",serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden;background:#0a0d10;color:var(--txt);font-family:var(--sans);-webkit-font-smoothing:antialiased}
#app{position:fixed;inset:0}
#scene{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:grab}
#scene:active{cursor:grabbing}
.edge-vignette{position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(120% 90% at 50% 45%, transparent 45%, rgba(4,6,8,.42) 100%),
  linear-gradient(180deg, rgba(4,6,8,.35) 0%, transparent 22%, transparent 72%, rgba(4,6,8,.5) 100%);
  mix-blend-mode:multiply;z-index:2}

/* ── Brand ───────────────────────────────────────────── */
.brand{position:absolute;top:26px;left:30px;z-index:6;display:flex;align-items:center;gap:14px;pointer-events:none;
  text-shadow:0 2px 20px rgba(0,0,0,.45)}
.brand-mark{width:38px;height:38px;color:var(--brass);opacity:.95}
.brand-mark svg{width:100%;height:100%}
.brand-text h1{font-family:var(--serif);font-weight:500;font-size:23px;letter-spacing:.28em;line-height:1;color:#fbf7ef}
.brand-text p{margin-top:7px;font-size:10.5px;letter-spacing:.18em;color:rgba(255,255,255,.62);text-transform:uppercase}
.brand-text p span{color:rgba(255,255,255,.82)}

/* ── Top actions ─────────────────────────────────────── */
.top-actions{position:absolute;top:26px;right:30px;z-index:7;display:flex;gap:8px}
.icon-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:rgba(10,14,18,.42);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:rgba(255,255,255,.78);display:grid;place-items:center;
  cursor:pointer;transition:.25s ease}
.icon-btn svg{width:17px;height:17px}
.icon-btn:hover{color:#fff;border-color:var(--brass-dim);background:rgba(24,30,36,.66);transform:translateY(-1px)}
.icon-btn.on{color:var(--brass);border-color:var(--brass-dim)}

/* ── Views ───────────────────────────────────────────── */
.views{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:6;display:flex;gap:4px;padding:5px;
  border:1px solid var(--line);border-radius:999px;background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 18px 50px rgba(0,0,0,.35);max-width:calc(100vw - 60px);overflow:auto;scrollbar-width:none}
.views::-webkit-scrollbar{display:none}
.view-chip{appearance:none;border:0;background:transparent;color:rgba(255,255,255,.6);padding:8px 15px 7px;border-radius:999px;
  cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;transition:.25s ease;white-space:nowrap}
.view-chip .cn{font-size:12.5px;letter-spacing:.06em;line-height:1.2}
.view-chip .en{font-size:7.5px;letter-spacing:.16em;opacity:.5}
.view-chip:hover{color:#fff;background:rgba(255,255,255,.07)}
.view-chip.is-active{background:rgba(201,162,102,.16);color:#f6e6c9;box-shadow:inset 0 0 0 1px rgba(201,162,102,.4)}
.view-chip.is-active .en{opacity:.75}

/* ── Panel ───────────────────────────────────────────── */
.panel{position:absolute;top:50%;right:30px;transform:translateY(-50%);z-index:6;width:262px;max-height:calc(100vh - 120px);
  overflow:auto;padding:18px 18px 14px;border-radius:18px;border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(20px) saturate(120%);-webkit-backdrop-filter:blur(20px) saturate(120%);
  box-shadow:0 30px 80px rgba(0,0,0,.45);scrollbar-width:none;transition:transform .5s cubic-bezier(.2,.8,.2,1),opacity .4s}
.panel::-webkit-scrollbar{display:none}
.panel.hidden{transform:translate(120%,-50%);opacity:0;pointer-events:none}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line-soft)}
.panel-head span:first-child{font-size:12px;letter-spacing:.14em}
.panel-sub{font-size:7.5px;letter-spacing:.22em;color:var(--txt-dim)}
.group{padding:14px 0;border-bottom:1px solid var(--line-soft)}
.group:last-of-type{border-bottom:0}
.group-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.group-head.mt{margin-top:16px}
.group-head label{font-size:11px;letter-spacing:.1em;color:rgba(255,255,255,.62)}
.time-out{font-family:var(--serif);font-size:19px;letter-spacing:.04em;color:#f7ead4}

/* sun slider */
.sun-wrap{position:relative;padding:2px 0 18px}
.sun-track{position:relative;height:26px;margin-bottom:6px}
.sun-track::before{content:"";position:absolute;left:0;right:0;top:12px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#20324d 0%,#4a6a92 12%,#e9a05a 24%,#ffe3a8 46%,#ffd08a 62%,#e06c3c 78%,#3a3f63 92%,#0f1522 100%);opacity:.9}
.sun-marks{position:absolute;left:0;right:0;top:18px;display:flex;justify-content:space-between;font-size:7.5px;color:rgba(255,255,255,.35);letter-spacing:.1em}
.sun-marks i{font-style:normal}
.sun-fill{position:absolute;left:0;top:12px;height:2px;background:linear-gradient(90deg,rgba(255,255,255,.0),rgba(255,235,200,.55));border-radius:2px;pointer-events:none}
.sun-knob{position:absolute;top:7px;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:#ffe6b8;
  box-shadow:0 0 0 4px rgba(255,214,150,.16),0 0 18px rgba(255,198,120,.8);pointer-events:none;transition:left .06s linear}
#timeRange{position:absolute;left:0;right:0;top:4px;width:100%;height:20px;opacity:0;cursor:pointer;z-index:3}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:5px}
.chips.tight button{flex:1 1 auto;min-width:44px;padding:6px 0;border-radius:8px;border:1px solid var(--line-soft);
  background:rgba(255,255,255,.035);color:rgba(255,255,255,.68);font-size:10px;letter-spacing:.06em;cursor:pointer;transition:.2s;font-family:var(--sans)}
.chips.tight button:hover{background:rgba(201,162,102,.14);color:#f4e3c4;border-color:var(--brass-dim)}

/* switch row */
.switch-row{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:11px;color:rgba(255,255,255,.62);cursor:pointer;position:relative}
.switch-row input{position:absolute;opacity:0;pointer-events:none}
.sw{width:34px;height:19px;border-radius:99px;background:rgba(255,255,255,.12);position:relative;transition:.28s;flex:0 0 auto}
.sw::after{content:"";position:absolute;top:3px;left:3px;width:13px;height:13px;border-radius:50%;background:#e9e3d6;transition:.28s}
.switch-row input:checked+.sw{background:rgba(201,162,102,.65)}
.switch-row input:checked+.sw::after{left:18px;background:#fff8e9}

/* segmented */
.seg{display:flex;gap:4px;padding:3px;border-radius:10px;background:rgba(255,255,255,.045);border:1px solid var(--line-soft)}
.seg button{flex:1;border:0;background:transparent;color:rgba(255,255,255,.55);font-size:11px;padding:7px 0;border-radius:7px;
  cursor:pointer;transition:.22s;font-family:var(--sans);letter-spacing:.04em}
.seg button:hover{color:#fff}
.seg button.on{background:rgba(255,255,255,.1);color:#fff;box-shadow:0 1px 6px rgba(0,0,0,.25)}
.seg.grid4 button{font-size:10.5px}

/* toggles */
.toggles{display:grid;grid-template-columns:1fr 1fr;gap:7px 10px}
.tg{display:flex;align-items:center;gap:7px;font-size:10.5px;color:rgba(255,255,255,.6);cursor:pointer;user-select:none}
.tg input{position:absolute;opacity:0;pointer-events:none}
.tg i{width:13px;height:13px;border-radius:4px;border:1px solid rgba(255,255,255,.28);position:relative;transition:.2s;flex:0 0 auto}
.tg i::after{content:"";position:absolute;left:3.5px;top:1px;width:4px;height:7px;border:solid #1a1d20;border-width:0 1.6px 1.6px 0;
  transform:rotate(42deg) scale(0);transition:.2s}
.tg input:checked+i{background:var(--brass);border-color:var(--brass)}
.tg input:checked+i::after{transform:rotate(42deg) scale(1)}
.tg:hover{color:rgba(255,255,255,.85)}

/* panel foot */
.panel-foot{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding-top:14px;margin-top:2px;border-top:1px solid var(--line-soft)}
.panel-foot div{display:flex;flex-direction:column;gap:3px;align-items:center}
.panel-foot b{font-family:var(--serif);font-size:19px;font-weight:500;color:#f2e6d2;line-height:1}
.panel-foot b small{font-size:9px;letter-spacing:.06em;color:rgba(255,255,255,.45);margin-left:1px}
.panel-foot span{font-size:8.5px;letter-spacing:.12em;color:rgba(255,255,255,.4)}

/* ── HUD ─────────────────────────────────────────────── */
.hud{position:absolute;left:30px;bottom:28px;z-index:6;display:flex;align-items:center;gap:14px;padding:10px 16px 10px 10px;
  border:1px solid var(--line);border-radius:16px;background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.hud-compass{width:58px;height:58px}
.hud-compass svg{width:100%;height:100%}
.hud-meta{min-width:96px}
.hud-time{font-family:var(--serif);font-size:22px;line-height:1;color:#f8ecd8;letter-spacing:.03em}
.hud-row{display:flex;justify-content:space-between;gap:10px;margin-top:5px;font-size:9px;color:rgba(255,255,255,.42);letter-spacing:.06em}
.hud-row b{font-weight:500;color:rgba(255,255,255,.78)}

.hint{position:absolute;left:50%;bottom:96px;transform:translateX(-50%);z-index:5;font-size:9.5px;letter-spacing:.16em;
  color:rgba(255,255,255,.34);pointer-events:none;transition:opacity 1s;white-space:nowrap}
.hint.fade{opacity:0}

/* ── Labels ──────────────────────────────────────────── */
#labels{position:absolute;inset:0;pointer-events:none;z-index:4;overflow:hidden}
.room-label{position:absolute;transform:translate(-50%,-50%);padding:4px 9px 5px;border-radius:6px;
  background:rgba(10,14,18,.62);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(6px);
  color:#f3ead9;font-size:9.5px;letter-spacing:.08em;white-space:nowrap;line-height:1.1;text-align:center;
  transition:opacity .25s;box-shadow:0 4px 14px rgba(0,0,0,.35)}
.room-label small{display:block;font-size:6.5px;letter-spacing:.18em;opacity:.5;margin-top:2px}
.room-label.dim{opacity:0}

/* ── Loader ──────────────────────────────────────────── */
.loader{position:absolute;inset:0;z-index:20;background:radial-gradient(120% 100% at 50% 40%,#1a2026 0%,#0a0d10 70%);
  display:grid;place-items:center;transition:opacity .9s ease,visibility .9s}
.loader.done{opacity:0;visibility:hidden}
.loader-inner{text-align:center;width:min(360px,72vw)}
.loader-mark{width:44px;height:44px;margin:0 auto 18px;color:var(--brass);opacity:.9}
.loader-mark svg{width:100%;height:100%}
.loader h2{font-family:var(--serif);font-weight:500;letter-spacing:.42em;font-size:21px;color:#f6efe3;text-indent:.42em}
.loader p{margin-top:12px;font-size:10px;letter-spacing:.16em;color:rgba(255,255,255,.42);height:14px}
.load-bar{margin-top:26px;height:1px;background:rgba(255,255,255,.12);overflow:hidden}
.load-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,rgba(201,162,102,.2),var(--brass));transition:width .4s ease}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width:900px){
  .brand{top:16px;left:16px;gap:10px}
  .brand-mark{width:30px;height:30px}
  .brand-text h1{font-size:17px;letter-spacing:.2em}
  .brand-text p{font-size:8.5px;letter-spacing:.1em;margin-top:5px}
  .top-actions{top:16px;right:16px}
  .icon-btn{width:34px;height:34px}
  .panel{right:12px;top:auto;bottom:92px;transform:none;width:min(300px,calc(100vw - 24px));max-height:52vh}
  .panel.hidden{transform:translateY(120%)}
  .views{bottom:14px;gap:0;padding:4px}
  .view-chip{padding:7px 10px 6px}
  .view-chip .cn{font-size:11px}
  .view-chip .en{display:none}
  .hud{display:none}
  .hint{bottom:70px;font-size:8px}
}