:root{color-scheme:dark;--ink:#f2ebff;--muted:#d2c4e5;--line:#bca1d73b;--panel:#090812d9;--amber:#f2c58c;--aqua:#89ddd5;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:#090812;color:var(--ink);overflow:hidden}button,select,a{-webkit-tap-highlight-color:transparent}button,select{font:inherit;font-size:13px;color:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,select:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--aqua);outline-offset:4px}button:disabled{opacity:.5;cursor:default}[hidden]{display:none!important}#world,#planet-canvas{position:fixed;inset:0;width:100%;height:100%;display:block}#planet-canvas{touch-action:none;cursor:grab}#planet-canvas:active{cursor:grabbing}.world-header{position:fixed;z-index:3;left:26px;right:26px;top:max(23px,env(safe-area-inset-top));display:flex;align-items:flex-start;justify-content:space-between;gap:20px;pointer-events:none;text-shadow:0 2px 16px #000}.world-header>a,.world-header>button{pointer-events:auto}.back-link,#help-button{font-size:13px;white-space:nowrap;padding:10px 13px;background:#090812ae;border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(14px)}.world-title{text-align:center}.world-title h1{font-size:clamp(18px,2.3vw,30px);font-weight:450;letter-spacing:.07em;margin:2px 0 8px}.world-title p{font-size:12px;color:#f0e2dc;margin:0;letter-spacing:.05em}.world-controls{position:fixed;z-index:3;left:26px;bottom:42px;width:min(510px,calc(100% - 52px));padding:18px 20px 14px;background:var(--panel);border:1px solid var(--line);border-radius:10px;backdrop-filter:blur(22px);box-shadow:0 6px 35px #0003}.weather-control{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px}.weather-control label{font-size:12px;color:var(--muted)}select{border:1px solid #c8a2e04f;border-radius:5px;padding:7px 30px 7px 12px;background:#17101f;min-width:100px}.weather-description{width:100%;font-size:12px;color:#e5dce9;line-height:1.65}.control-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:15px}.control-actions button{background:#21172db8;border:1px solid #b890d849;border-radius:5px;min-height:38px;padding:8px 12px}.control-actions button:hover,.control-actions button[aria-pressed=true]{background:#49325b;border-color:#d6b1ef}.control-actions button:first-child{color:#f9d6a7;border-color:#d5ab7857}.quiet-hint{font-size:10px;color:#baa9cc;margin:12px 0 0;line-height:1.7}.world-caption{position:fixed;bottom:14px;left:28px;right:28px;display:flex;justify-content:space-between;font-size:10px;color:#e3d3e1b3;letter-spacing:.1em;pointer-events:none;text-shadow:0 2px 10px #000}.touch-navigation{position:fixed;z-index:3;right:27px;bottom:51px;display:grid;grid-template-columns:repeat(3,44px);grid-template-rows:repeat(2,44px);gap:5px}.touch-navigation button{touch-action:none;user-select:none;font-size:23px;background:#0a0914b8;border:1px solid #d4b0ea55;border-radius:7px;backdrop-filter:blur(12px);color:#f1e3ff}.touch-navigation button[data-move=forward]{grid-column:2}.touch-navigation button[data-move=left]{grid-column:1;grid-row:2}.touch-navigation button[data-move=backward]{grid-column:2;grid-row:2}.touch-navigation button[data-move=right]{grid-column:3;grid-row:2}.touch-navigation button.is-held{background:#604376}.help-panel{position:fixed;z-index:6;right:26px;top:85px;width:min(410px,calc(100% - 40px));max-height:calc(100svh - 110px);overflow:auto;background:#100b18f5;border:1px solid #d5b4ec6b;border-radius:10px;padding:20px 24px;box-shadow:0 15px 80px #0008}.help-heading{display:flex;justify-content:space-between;align-items:center;gap:15px}.help-heading h2{font-size:18px;font-weight:450;margin:0}.help-heading button{background:none;border:0;font-size:27px;line-height:1;color:#ddd0e9}.help-panel p{font-size:12px;color:#dacde5;line-height:1.9}.help-panel .sources{border-top:1px solid var(--line);padding-top:15px;font-size:11px;color:#ad9dbd}.sources a{color:#e1c5fa;text-decoration:underline;text-underline-offset:3px}.arrival{position:fixed;inset:0;z-index:8;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#0c0813;color:#dac7ed;transition:opacity .8s}.arrival.is-ready{opacity:0;pointer-events:none}.arrival p{font-size:13px;margin-top:25px}.arrival-orbit{width:55px;height:55px;border:1px solid #b57ae555;border-top-color:#f3c89a;border-radius:50%;animation:orbit 1.4s linear infinite}.error{position:fixed;z-index:10;inset:0;display:flex;justify-content:center;align-items:center;flex-direction:column;text-align:center;background:#100b19;padding:30px}.error h2{font-size:24px;font-weight:450}.error p{max-width:470px;color:#d6c6e5;font-size:14px;line-height:1.8}.error a{margin-top:20px;text-decoration:underline;color:#f0cf9d}@keyframes orbit{to{transform:rotate(360deg)}}@media(max-width:720px){.world-header{left:14px;right:14px;top:max(14px,env(safe-area-inset-top));gap:8px;flex-wrap:wrap}.world-title{order:3;flex:0 0 100%;padding-top:6px}.world-title h1{font-size:20px;margin-bottom:5px}.world-title p{font-size:10px}.back-link,#help-button{font-size:11px;padding:8px 10px}.world-controls{left:14px;bottom:40px;width:calc(100% - 28px);padding:13px 14px 11px}.weather-control{gap:8px 10px}.weather-description{font-size:11px;padding-right:0}.control-actions{gap:5px;margin-top:10px;padding-right:108px}.control-actions button{font-size:11px;padding:7px 8px;min-height:34px}.quiet-hint{font-size:9px;max-width:calc(100% - 110px);margin-top:8px}.touch-navigation{right:24px;bottom:62px;grid-template-columns:repeat(3,32px);grid-template-rows:repeat(2,32px);gap:3px}.touch-navigation button{font-size:18px;border-radius:5px}.world-caption{left:17px;right:17px;font-size:9px}.help-panel{right:14px;top:60px;max-height:calc(100svh - 80px);padding:16px 18px}.help-panel p{font-size:12px}}@media(max-width:360px){.world-title h1{font-size:18px}.world-controls{padding:11px}.weather-description{font-size:10px}.control-actions{padding-right:102px}.control-actions button{font-size:10px;padding:6px}.quiet-hint{max-width:calc(100% - 100px);font-size:8px}.touch-navigation{right:20px;bottom:60px;grid-template-columns:repeat(3,29px);grid-template-rows:repeat(2,29px)}}@media(prefers-reduced-motion:reduce){.arrival{transition:none}.arrival-orbit{animation:none}}