:root{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:#182823;background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;border:1px solid #d9dfdc;border-radius:8px;background:#fff;color:#182823;padding:12px 20px;font-size:14px;font-weight:600;transition:background .15s}button:hover{background:#edf3ef}button:focus-visible,a:focus-visible{outline:3px solid #d4a641;outline-offset:3px}button:disabled{opacity:.5;cursor:wait}button[aria-pressed=true],.primary{background:#204b37;color:white;border-color:#204b37}.primary:hover{background:#2d6148}header{height:72px;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:white;position:relative;z-index:2}.brand{display:flex;align-items:center;gap:18px;text-decoration:none;color:inherit;white-space:nowrap}.brand strong{font-family:"Songti SC",SimSun,serif;font-size:29px;letter-spacing:4px}.brand span{font-size:13px;letter-spacing:2px;color:#758078}header nav{display:flex;gap:12px}#viewport{position:relative;height:calc(100dvh - 72px);min-height:260px;background:#b8cbd7 url(poster.webp) center/cover}canvas{display:block;touch-action:none;width:100%;height:100%}#welcome{position:absolute;bottom:32px;left:32px;background:rgba(255,255,255,.96);border:1px solid #e1e6e2;border-radius:12px;padding:26px 28px;width:365px;box-shadow:0 6px 30px #11291d15}h1{margin:0 0 10px;font:700 30px "Songti SC",SimSun,serif;letter-spacing:2px}#welcome p{font-size:13px;color:#6d7871;margin:0 0 20px;line-height:1.8}#enter{width:100%;font-size:19px;padding:15px;display:flex;justify-content:center;gap:25px}small{display:block;color:#7b837d;font-size:12px;margin-top:16px}kbd{font:12px inherit;display:inline-block;background:#f1f3f2;padding:4px 6px;border:1px solid #d9dfdc;border-radius:4px;margin-right:3px}#places{position:absolute;bottom:32px;left:50%;transform:translateX(-35%);background:#fffffff5;border:1px solid #e0e6e2;border-radius:12px;display:flex;padding:4px;box-shadow:0 6px 20px #11291d12}#places button{border:0;border-radius:7px;padding:11px 18px;white-space:nowrap}#status{position:absolute;top:16px;left:24px;margin:0;max-width:calc(100% - 130px);padding:8px 12px;border-radius:6px;background:#fffdf2ed;font-size:12px;color:#324a3b}#share{position:absolute;right:24px;top:16px;font-size:12px;padding:8px 12px}.site{position:absolute;bottom:16px;right:24px;color:#fff;text-shadow:0 1px 5px #172c27;text-decoration:none;font-size:12px;letter-spacing:1px}#loading{position:absolute;top:35%;left:50%;transform:translate(-50%,-50%);background:#ffffffed;border-radius:12px;padding:22px 32px;min-width:270px;text-align:center}#loading[hidden]{display:none}#loading h2{font-size:17px}#loading p{font-size:12px;color:#6d7871}progress{width:220px;height:6px;accent-color:#204b37}.exploring #welcome{display:none}.exploring #places{transform:translateX(-50%)}#joystick,.mobileHint{display:none}dialog{border:1px solid #d9dfdc;border-radius:16px;padding:30px;width:min(520px,90vw);box-shadow:0 20px 80px #0003}dialog::backdrop{background:#10241ba8}dialog h2{font-size:22px;margin-top:0}dialog p{font-size:14px;line-height:1.9}dialog .note{color:#748078;font-size:12px}dialog button{width:100%}@media(max-width:1100px){#welcome{bottom:98px}#places{transform:translateX(-50%)}}@media(max-width:650px){header{height:64px;padding:0 14px;gap:6px}.brand strong{font-size:20px;letter-spacing:2px}.brand span{display:none}header nav{gap:5px}header button{padding:9px 8px;font-size:11px}#viewport{height:calc(100dvh - 64px)}#welcome{left:16px;bottom:90px;width:calc(100% - 32px);padding:18px 20px}h1{font-size:26px}#welcome p{margin-bottom:12px}#enter{padding:12px;font-size:17px}#places{width:calc(100% - 24px);bottom:28px;justify-content:space-around}#places button{padding:10px 9px;font-size:12px}.site{bottom:7px;right:15px;font-size:10px}#status{left:12px;top:12px;padding:7px 9px;font-size:11px;max-width:calc(100% - 104px)}#share{right:12px;top:12px;font-size:11px}.desktopHint{display:none}.mobileHint{display:block;margin-top:10px}#loading{top:27%;padding:14px 20px}.exploring[data-mode=walk] #joystick{display:flex}#joystick{position:absolute;left:24px;bottom:115px;width:110px;height:110px;border-radius:50%;background:#ffffff75;border:2px solid #fff9;align-items:center;justify-content:center;touch-action:none}#knob{width:46px;height:46px;border-radius:50%;background:#204b37b8;border:2px solid white;pointer-events:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

#speed{position:absolute;right:24px;top:60px;min-width:132px;font-size:12px;padding:10px 12px;background:#fffffff5}body[data-mode=aerial] #speed{display:none}@media(max-width:650px){#speed{right:12px;top:56px;font-size:12px;min-height:44px}}