:root{color-scheme:dark;font-family:'Segoe UI','Microsoft YaHei',sans-serif;background:#0d1118;color:#eef4fb}
*{box-sizing:border-box}body{margin:0}#scene{height:100dvh;width:100%;position:relative}
.tour-panel,.help-panel{position:fixed;z-index:100;background:#111923e8;border:1px solid #ffffff28;border-radius:14px;backdrop-filter:blur(14px);box-shadow:0 10px 35px #0003}
.tour-panel{top:18px;left:18px;width:min(420px,calc(100vw - 36px));padding:16px}.heading{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.heading strong{font-size:17px}.heading span{color:#9db1c9;font-size:11px}
nav{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}button,select{font:inherit;background:#202c3b;color:#eef4fb;border:1px solid #ffffff25;border-radius:7px;padding:8px 10px;font-size:12px}button{cursor:pointer}button:hover:not(:disabled){background:#33465e}button:disabled{opacity:.45;cursor:default}button.primary{background:#2868bf;border-color:#4b88d9}button[aria-pressed=true]{border-color:#83bbff}.options{display:flex;align-items:center;gap:18px;margin-top:12px;font-size:12px;color:#bdcadb}.options input{accent-color:#6ba9fb}.options select{padding:5px 7px;margin-left:5px}
#status{margin:12px 0 0;color:#a8c8ee;font-size:12px;line-height:1.7}#error{color:#ffb4b4;font-size:12px;line-height:1.7}
.sse-loadingBar.tyh-loading-indeterminate{background-image:linear-gradient(90deg,#ffffff22 0%,#F60 50%,#ffffff22 100%)!important;background-size:200% 100%;animation:tyh-loading 1.5s linear infinite}
@keyframes tyh-loading{from{background-position:200% 0}to{background-position:0 0}}
@media(prefers-reduced-motion:reduce){.sse-loadingBar.tyh-loading-indeterminate{animation:none}}
.settings-panel{margin-top:12px;font-size:12px;color:#bdcadb}.settings-panel summary{cursor:pointer;padding:3px 0}.stats-hint{font-size:11px;color:#8ea4bd}.options{flex-wrap:wrap}.heading{flex-wrap:wrap}.heading strong{line-height:1.5}
#mini-stats{--mini-stats-right:18px;--mini-stats-bottom:112px;--mini-stats-height-ratio:.45}
.help-panel{top:18px;right:18px;width:300px;padding:14px 16px;font-size:12px;line-height:1.8}.help-panel summary{cursor:pointer;font-weight:600;font-size:13px}.focus-tip{border-left:2px solid #73b0ff;padding-left:10px;margin:14px 0;color:#d9eaff}.help-panel dl{display:grid;grid-template-columns:72px 1fr;gap:8px 10px;margin:12px 0}.help-panel dt{color:#eef4fb}.help-panel dd{margin:0;color:#adbed1}.note{color:#9eb3cb}.help-panel a{color:#86baff;text-decoration:none}.help-panel a:hover{text-decoration:underline}
@media(max-width:850px){.help-panel{top:auto;bottom:65px;right:12px;width:min(300px,calc(100vw - 24px));max-height:40dvh;overflow:auto}.tour-panel{top:12px;left:12px;width:min(420px,calc(100vw - 24px));padding:12px}.heading strong{font-size:15px}}
@media(max-width:850px){body.stats-visible .help-panel{bottom:auto;top:12px;right:12px;width:auto}body.stats-visible .help-panel[open]{top:auto;bottom:calc(112px + 45dvh + 12px);max-height:25dvh}body.stats-visible .tour-panel{padding-top:44px}#mini-stats{--mini-stats-right:12px}}
.mobile-panel-toggle{display:none}
.mobile-ui .help-panel{display:none!important}
.mobile-ui .tour-panel,.mobile-ui.stats-visible .tour-panel{top:max(8px,env(safe-area-inset-top));left:max(8px,env(safe-area-inset-left));width:calc(100% - max(8px,env(safe-area-inset-left)) - max(8px,env(safe-area-inset-right)));max-width:440px;padding:10px;border-radius:12px;display:grid;grid-template-columns:54px minmax(0,1fr);gap:4px 8px;max-height:calc(100dvh - 140px);overflow-y:auto;overscroll-behavior:contain}
.mobile-ui .heading{grid-column:1/-1;padding-right:48px;min-height:40px;align-items:center}
.mobile-ui .heading strong{font-size:14px;line-height:1.4}
.mobile-ui #route-info{display:none}
.mobile-ui .mobile-panel-toggle{display:flex;position:absolute;top:7px;right:7px;min-height:44px;min-width:44px;align-items:center;justify-content:center;padding:4px;font-size:12px;touch-action:manipulation}
.mobile-ui #browse-modes{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin:4px 0 0}
.mobile-ui #browse-modes button{min-height:44px;padding:6px 2px;font-size:12px;white-space:nowrap;touch-action:manipulation}
.mobile-ui .settings-panel{margin:0;grid-column:1}
.mobile-ui .settings-panel summary{min-height:44px;display:flex;align-items:center;cursor:pointer;touch-action:manipulation}
.mobile-ui .settings-panel summary::before{content:'›';margin-right:6px}
.mobile-ui .settings-panel[open]{grid-column:1/-1;border-top:1px solid #ffffff20;margin-top:5px}
.mobile-ui .settings-panel[open] summary::before{content:'⌄'}
.mobile-ui .settings-panel[open]~#status{grid-column:1/-1;text-align:left}
.mobile-ui #status{grid-column:2;align-self:center;text-align:right;margin:0;font-size:11px;line-height:1.5}
.mobile-ui #error{grid-column:1/-1;margin:0}
.mobile-ui .options{gap:8px 16px;margin-top:4px;font-size:13px}
.mobile-ui .options label{min-height:44px;display:flex;align-items:center;gap:6px}
.mobile-ui .options select{min-height:44px;font-size:16px;margin-left:4px}
.mobile-ui .options input{width:18px;height:18px;margin:0}
.mobile-ui .stats-hint{font-size:11px}
.mobile-ui .tour-panel.controls-collapsed #browse-modes,.mobile-ui .tour-panel.controls-collapsed .settings-panel,.mobile-ui .tour-panel.controls-collapsed #status{display:none}
.mobile-ui #mini-stats{--mini-stats-right:8px;--mini-stats-bottom:144px;--mini-stats-height-ratio:.28}
.mobile-ui .sse-loadingWrap{max-width:calc(100% - 40px)}
@media(max-height:500px){.mobile-ui .tour-panel,.mobile-ui.stats-visible .tour-panel{max-width:360px;padding:6px 10px}.mobile-ui .heading{min-height:36px}.mobile-ui .heading strong{font-size:12px}.mobile-ui #browse-modes{margin-top:0}.mobile-ui #status{font-size:10px}}