:root{--red:#c8102e;--ink:#1d2329;--panel:rgba(18,22,27,.78);--line:rgba(255,255,255,.14);--txt:#f2f4f5;--mut:#aab3bb}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;background:#0d1013;color:var(--txt);font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;-webkit-user-select:none;user-select:none}
#c{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none}
button{font:inherit}
.tb{border:1px solid var(--line);background:var(--panel);color:var(--txt);padding:9px 14px;border-radius:10px;cursor:pointer;font-size:14px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);white-space:nowrap}
.tb:hover{background:rgba(40,46,54,.9)}
.tb.primary{background:#1f5fae;border-color:#3b7ad0}
.tb.primary:hover{background:#2a6fc4}
.tb.accent{background:var(--red);border-color:#e0405a}
.tb.accent:hover{background:#dc2441}
.tb:disabled{opacity:.45;cursor:default}
#loading{position:fixed;inset:0;background:#fff;display:flex;align-items:center;justify-content:center;z-index:50;color:#222}
.ld-box{text-align:center;width:min(520px,86vw)}
.ld-logo{width:120px;height:auto;margin-bottom:18px}
.ld-title{font-weight:600;font-size:17px}
.ld-sub{color:#667;margin:6px 0 18px;font-size:14px}
.ld-bar{height:6px;background:#eee;border-radius:4px;overflow:hidden}
#ldfill{height:100%;width:0;background:var(--red);transition:width .2s}
.ld-pct{margin-top:8px;font-size:13px;color:#889}
#hud[hidden],#pano[hidden],#modal[hidden]{display:none}
#roombox{position:fixed;left:16px;top:16px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;min-width:200px;max-width:min(60vw,520px);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border-left:4px solid var(--red)}
#roomname{font-weight:600;font-size:16px}
#roomcls{font-size:12.5px;color:var(--mut);margin-top:2px}
#toolbar{position:fixed;left:16px;bottom:16px;display:flex;gap:8px;flex-wrap:wrap;max-width:calc(100vw - 32px)}
#mapwrap{position:fixed;right:16px;top:16px;background:rgba(250,250,248,.94);border-radius:12px;padding:8px;box-shadow:0 6px 24px rgba(0,0,0,.35)}
#mapwrap.off{display:none}
#mapc{display:block;cursor:crosshair}
.maphint{font-size:11px;color:#556;text-align:center;margin-top:4px}
#help{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 22px;width:min(560px,92vw);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:14px;line-height:1.45}
#help b{font-size:17px;display:block;margin-bottom:10px}
#help .hl{margin:7px 0;color:#dfe4e8}
#help .hl span{display:inline-block;width:96px;color:#fff;font-weight:600}
#help button{margin-top:12px;width:100%}
#help.off{display:none}
#cross{position:fixed;left:50%;top:50%;width:6px;height:6px;margin:-3px;border-radius:50%;background:rgba(255,255,255,.75);box-shadow:0 0 0 1px rgba(0,0,0,.35);pointer-events:none;display:none}
#joy{position:fixed;left:24px;bottom:90px;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.3);display:none;touch-action:none}
#joyk{position:absolute;left:50%;top:50%;width:52px;height:52px;margin:-26px;border-radius:50%;background:rgba(255,255,255,.35)}
body.touch #joy{display:block}
#pano{position:fixed;inset:0;pointer-events:none}
#pano>*{pointer-events:auto}
#panotop{position:fixed;left:16px;right:16px;top:16px;display:flex;justify-content:space-between;align-items:center;gap:10px;pointer-events:none}
#panotop>*{pointer-events:auto}
#panoname{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--red);border-radius:12px;padding:10px 14px;font-weight:600}
#panolist{position:fixed;right:16px;top:74px;max-height:calc(100vh - 160px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:6px;width:250px}
#panolist button{display:block;width:100%;text-align:left;background:none;border:0;color:var(--txt);padding:8px 10px;border-radius:8px;cursor:pointer;font-size:13.5px}
#panolist button:hover,#panolist button.cur{background:rgba(255,255,255,.12)}
#panolist .ph{font-size:12px;color:var(--mut);padding:6px 10px}
#panohint{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--panel);border-radius:10px;padding:8px 14px;font-size:13px;color:var(--mut)}
#bcomment2{position:fixed;left:16px;bottom:16px}
#modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:30;-webkit-user-select:text;user-select:text}
.mbox{background:#fff;color:#1d2329;border-radius:14px;width:min(560px,94vw);max-height:94vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.mhead{padding:14px 16px;font-weight:600;font-size:16px;border-bottom:1px solid #e6e8ea;display:flex;justify-content:space-between;align-items:center}
.x{border:0;background:none;font-size:18px;cursor:pointer;color:#667}
.mbody{padding:14px 16px;overflow:auto}
#mshot{width:100%;border-radius:8px;display:block;background:#eee;aspect-ratio:16/9;object-fit:cover}
.mloc{font-size:12.5px;color:#556;margin:8px 0 10px}
label{display:block;font-size:13px;font-weight:600;margin:10px 0 4px}
input,textarea{display:block;width:100%;margin-top:5px;font:inherit;font-weight:400;font-size:15px;padding:9px 11px;border:1px solid #cfd5da;border-radius:8px;color:#1d2329;background:#fff}
textarea{resize:vertical}
#fmsg{font-size:13.5px;margin-top:10px;min-height:18px}
#fmsg.ok{color:#137333}#fmsg.err{color:#b3261e}
.mfoot{padding:12px 16px;border-top:1px solid #e6e8ea;display:flex;justify-content:flex-end}
@media (max-width:700px){#roombox{max-width:calc(100vw - 32px)}#mapwrap{top:auto;bottom:70px;right:10px;padding:5px}.tb{padding:8px 10px;font-size:13px}#panolist{width:200px}}