:root{--ink:#173c35;--paper:#f7f5ed;--muted:#637b72;--line:rgba(32,68,58,.17);--glass:rgba(248,248,239,.92);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}html,body,#app{margin:0;width:100%;height:100%;overflow:hidden}body{background:#e8eee6}#app{position:relative;height:100dvh;min-height:250px}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:0}button:focus-visible,a:focus-visible,summary:focus-visible,canvas:focus-visible{outline:3px solid #c19443;outline-offset:3px}button:disabled{opacity:.45;cursor:wait}button:hover{filter:brightness(.96)}button:active{transform:translateY(1px)}[hidden]{display:none!important}#scene{position:absolute;inset:0;width:100%;height:100%;touch-action:none;outline:0}.vignette{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(244,244,233,.7),transparent 32%),linear-gradient(0deg,rgba(244,244,233,.65),transparent 25%)}.header{position:absolute;top:max(25px,env(safe-area-inset-top));left:max(30px,env(safe-area-inset-left));right:max(30px,env(safe-area-inset-right));display:flex;align-items:center;justify-content:space-between;gap:20px;z-index:3}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand-icon{display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--ink);border-radius:50%;font:28px serif}.brand strong{display:block;font-size:17px;letter-spacing:.14em}.brand small{display:block;font-size:8px;font-weight:600;letter-spacing:.12em;margin-top:5px}.header-actions{display:flex;gap:10px}.pill,.icon-button{background:var(--glass);border:1px solid var(--line);height:42px;box-shadow:0 4px 14px #18372c08}.pill{padding:0 18px;border-radius:24px;font-size:12px}.pill span{margin-left:8px}.icon-button{display:grid;place-items:center;width:42px;border-radius:50%;font-size:23px}.intro{position:absolute;left:max(38px,env(safe-area-inset-left));top:130px;pointer-events:none}.eyebrow{font-size:9px;letter-spacing:.2em;font-weight:650;color:var(--muted)}h1{font-family:"Noto Serif CJK SC","Songti SC",SimSun,serif;font-size:40px;font-weight:500;line-height:1.4;letter-spacing:.07em;margin:15px 0 16px}h1+p{font-size:11px;letter-spacing:.12em;color:var(--muted)}h1+p span{padding:0 8px}.mode-switch{position:absolute;top:27px;left:50%;transform:translateX(-50%);background:var(--glass);border:1px solid var(--line);border-radius:28px;padding:4px;display:flex;gap:3px;z-index:4;box-shadow:0 4px 18px #203c2c09}.mode-switch button{background:none;border-radius:23px;padding:10px 22px;font-size:12px;white-space:nowrap}.mode-switch button span{padding-right:6px;font-size:15px}.mode-switch button.active{background:var(--ink);color:var(--paper)}.view-tools{position:absolute;right:max(28px,env(safe-area-inset-right));top:50%;transform:translateY(-40%);display:grid;gap:8px;z-index:3}.compass{position:absolute;right:38px;top:101px;width:44px;text-align:center;pointer-events:none}.compass>span{font-size:9px;font-weight:700}.compass svg{width:44px;display:block}.bottom{position:absolute;left:max(30px,env(safe-area-inset-left));right:max(30px,env(safe-area-inset-right));bottom:max(39px,env(safe-area-inset-bottom));display:flex;align-items:center;gap:26px;padding:18px 21px;background:var(--glass);border:1px solid #ffffffb3;border-radius:16px;box-shadow:0 8px 35px #143b2c13;z-index:4}.route-heading{min-width:136px;border-right:1px solid var(--line);padding-right:22px}.route-heading .eyebrow{font-size:8px}.route-heading strong{display:block;font-size:14px;font-weight:500;margin-top:7px}#landmarks{display:flex;gap:10px;flex:1;overflow-x:auto;scrollbar-width:none}#landmarks::-webkit-scrollbar{display:none}.landmark-button{flex-shrink:0;display:flex;gap:10px;align-items:center;background:transparent;padding:8px 15px 8px 8px;border-radius:10px;text-align:left;white-space:nowrap;border:1px solid transparent}.landmark-button.active{border-color:#b1c4b4;background:#edf0e6}.landmark-number{font-size:9px;color:#8d9f91}.landmark-name{font-size:12px;display:block}.landmark-tag{display:block;font-size:8px;letter-spacing:.08em;color:var(--muted);margin-top:5px}.more-places{font-size:11px;background:none;white-space:nowrap}.fineprint{position:absolute;bottom:14px;left:33px;right:33px;display:flex;gap:15px;color:#6c8073;font-size:9px;z-index:5;align-items:center}.fineprint button{background:none;font-size:9px;padding:0}.fineprint span:last-child{margin-left:auto}.hint{position:absolute;left:50%;bottom:145px;transform:translateX(-50%);font-size:10px;letter-spacing:.04em;color:#61766b;white-space:nowrap;background:#f7f5edb0;padding:7px 13px;border-radius:20px;pointer-events:none}.label{position:absolute;background:#faf9eff2;border:1px solid #acbeb1;padding:6px 10px;border-radius:20px;font-size:10px;white-space:nowrap;pointer-events:none;transform:translate(-50%,-100%);box-shadow:0 2px 8px #18372c15}.label::after{content:"";position:absolute;width:4px;height:4px;border-radius:50%;background:var(--ink);bottom:-6px;left:50%}.place-card{position:absolute;left:34px;top:116px;width:260px;padding:25px;background:var(--glass);border:1px solid #fff;border-radius:15px;box-shadow:0 8px 35px #143b2c16;z-index:6}.place-card>button:first-child{position:absolute;right:9px;top:6px;background:none;font-size:24px;font-weight:300}.place-card h2{font-size:22px;line-height:1.5;margin:12px 0}.place-card p{font-size:12px;line-height:1.9;color:var(--muted)}.text-link{padding:9px 0;background:none;border-bottom:1px solid var(--line);width:100%;text-align:left;font-size:12px}.text-link span{float:right}.walk-hud{display:none;pointer-events:none}.walk-hud button,.joystick,.look-pad{pointer-events:auto}.walk-caption{position:absolute;top:100px;left:35px;display:grid;grid-template-columns:auto 1fr;align-items:center;column-gap:8px;padding:10px 14px;background:#f7f5edcf;border-radius:12px}.live-dot{width:5px;height:5px;border-radius:50%;background:#547e55}.walk-caption strong{font-size:13px;font-weight:500}.walk-caption small{grid-column:2;color:var(--muted);font-size:9px;margin-top:5px}.reticle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:16px;color:#fff9;text-shadow:0 1px 3px #0004}.joystick{position:absolute;left:max(45px,env(safe-area-inset-left));bottom:172px;width:118px;height:118px;border:1px solid #ffffff8c;border-radius:50%;background:#f7f5ed45;box-shadow:inset 0 0 0 14px #f7f5ed20;touch-action:none;user-select:none;-webkit-user-select:none}.stick{position:absolute;left:38px;top:38px;width:40px;height:40px;border-radius:50%;background:#f7f5eddc;border:1px solid #fff;box-shadow:0 3px 8px #173c351c;pointer-events:none}.joystick>span{position:absolute;color:#3157479c;font-size:14px}.stick-up{top:7px;left:52px}.stick-down{bottom:7px;left:52px}.stick-left{left:8px;top:49px}.stick-right{right:8px;top:49px}.joystick-caption{position:absolute;left:45px;width:118px;text-align:center;bottom:152px;font-size:9px;color:#496f60}.look-pad{position:absolute;right:max(60px,env(safe-area-inset-right));bottom:185px;width:75px;height:75px;display:grid;place-items:center;border:1px solid #fff8;border-radius:50%;background:#f7f5ed32;touch-action:none}.look-pad svg{width:34px;fill:none;stroke:#40695899;stroke-width:1}.look-caption{position:absolute;right:43px;bottom:165px;font-size:9px;color:#496f60}.speed-button{position:absolute;bottom:181px;left:184px;background:#f7f5edc9;border:1px solid #fff9;border-radius:22px;padding:10px 13px;font-size:10px}.loading{position:absolute;inset:0;background:#f3f3eaf5;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:30;text-align:center;padding:28px}.loader-logo{font:42px serif;border:1px solid var(--ink);width:70px;height:70px;border-radius:50%;display:grid;place-items:center;margin-bottom:27px}.loading h2{font-size:25px;font-weight:500;margin:15px 0}.loading p{font-size:12px;color:var(--muted)}.progress{height:3px;width:min(280px,70vw);background:#d6dfd1;border-radius:2px;margin:17px 0}.progress i{display:block;width:3%;height:100%;background:#305b47;transition:width .2s}#progress-text{font-size:10px;color:var(--muted)}#retry,.primary{border-radius:25px;background:var(--ink);color:var(--paper);padding:13px 25px;margin-top:22px;font-size:12px}.rotate{display:none;position:absolute;inset:0;z-index:25;background:#173c35f7;color:var(--paper);flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:25px}.rotate-icon{font-size:54px;font-weight:200;letter-spacing:15px;margin-bottom:20px}.rotate h2{font-size:22px;font-weight:500}.rotate p{font-size:12px;color:#bacbbc;line-height:2}.rotate button{font-size:12px;color:#fff;background:none;border-bottom:1px solid #778f7d;margin-top:25px;padding:10px}dialog{background:#f8f7ef;color:var(--ink);border:1px solid #fff;border-radius:20px;width:min(650px,90vw);max-height:88dvh;padding:35px;box-shadow:0 20px 90px #13332933;overflow:auto}dialog::backdrop{background:#12332866;backdrop-filter:blur(5px)}dialog h2{font-size:28px;font-weight:500;margin:15px 0 22px}dialog p{font-size:12px;line-height:1.9;color:#557261}dialog h3{font-size:13px;font-weight:600}.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:22px 0;padding:12px 0}dialog .notice{background:#e8ede0;padding:14px;border-radius:10px}dialog details{margin:20px 0;font-size:12px}dialog summary{cursor:pointer}dialog li{font-size:11px;line-height:1.8;margin:10px 0}dialog a{color:var(--ink)}dialog .device-note{font-size:10px}.dialog-close{position:absolute;right:15px;top:10px;background:none;font-size:27px;font-weight:300}.primary span{margin-left:30px}#all-places{display:grid;grid-template-columns:1fr 1fr;gap:12px}#all-places .landmark-button{border:1px solid var(--line);padding:14px}#toast{position:absolute;z-index:40;top:80px;left:50%;transform:translateX(-50%);background:#173c35ed;color:#f7f5ed;max-width:min(80vw,500px);width:max-content;padding:11px 18px;border-radius:25px;font-size:12px;box-shadow:0 8px 24px #173c3520;text-align:center}[data-mode=walk] .walk-hud{display:block}[data-mode=walk] .intro,[data-mode=walk] #labels,[data-mode=walk] .hint{display:none}[data-mode=walk] .vignette{background:linear-gradient(0deg,#eef2e46b,transparent 45%)}[data-mode=walk] .view-tools{top:110px;transform:none;display:flex;right:96px}[data-mode=walk] #zoom-in,[data-mode=walk] #zoom-out{display:none}[data-mode=walk] .place-card{top:168px}.compact .intro{display:none}.low-power #quality{background:#dce7d4}
@media(max-width:1000px){.header{top:18px;left:22px;right:22px}.brand-icon{width:34px;height:34px;font-size:23px}.brand strong{font-size:14px}.brand small{font-size:6px}.mode-switch{top:16px}.mode-switch button{padding:9px 17px}.intro{left:26px;top:100px}.intro h1{font-size:31px}.intro .eyebrow{font-size:7px}.intro p{font-size:9px}.bottom{left:22px;right:22px;gap:13px;padding:10px 14px;bottom:31px}.route-heading{min-width:114px;padding-right:12px}.route-heading strong{font-size:12px}.landmark-button{padding:7px 8px;gap:6px}.landmark-tag{font-size:7px}.landmark-name{font-size:11px}.hint{bottom:113px;font-size:9px}.compass{top:83px;right:27px}.fineprint{left:25px;right:25px;bottom:11px;font-size:8px}.view-tools{right:24px;gap:6px}.icon-button{width:36px;height:36px;font-size:21px}.pill{height:36px;padding:0 13px;font-size:10px}.joystick{bottom:135px;left:35px;width:104px;height:104px}.stick{left:31px;top:31px}.stick-up,.stick-down{left:45px}.stick-left,.stick-right{top:42px}.joystick-caption{left:28px;bottom:117px}.look-pad{bottom:150px;right:47px}.look-caption{bottom:130px;right:29px}.speed-button{left:157px;bottom:146px}.walk-caption{top:80px;left:24px}.place-card{left:23px;top:93px;width:235px;padding:22px}.place-card h2{font-size:19px}}
@media(max-height:560px) and (orientation:landscape){.header{top:max(12px,env(safe-area-inset-top));left:max(20px,env(safe-area-inset-left));right:max(20px,env(safe-area-inset-right))}.brand-icon{width:31px;height:31px;font-size:21px}.brand strong{font-size:12px}.brand small{font-size:5.5px}.mode-switch{top:10px}.mode-switch button{padding:8px 17px;font-size:11px}.pill,.icon-button{height:32px}.icon-button{width:32px;font-size:19px}.intro{top:84px;left:max(25px,env(safe-area-inset-left))}.intro h1{font-size:27px;margin:10px 0}.intro p{font-size:8px}.intro .eyebrow{font-size:6px}.bottom{left:max(20px,env(safe-area-inset-left));right:max(20px,env(safe-area-inset-right));bottom:max(23px,env(safe-area-inset-bottom));padding:7px 11px;border-radius:12px;gap:10px}.route-heading{min-width:100px}.route-heading .eyebrow{font-size:6px}.route-heading strong{font-size:10px;margin-top:4px}#landmarks{gap:3px}.landmark-button{padding:6px}.landmark-name{font-size:10px}.landmark-tag{font-size:6px;margin-top:4px}.more-places{font-size:9px}.fineprint{bottom:7px;font-size:7px}.fineprint button{font-size:7px}.hint{bottom:89px;font-size:8px;padding:5px 10px}.compass{top:66px;right:27px;width:32px}.compass svg{width:32px}.compass>span{font-size:8px}.view-tools{gap:5px;top:44%;right:26px}.joystick{width:94px;height:94px;left:max(29px,env(safe-area-inset-left));bottom:105px}.stick{width:34px;height:34px;left:29px;top:29px}.stick-up,.stick-down{left:40px}.stick-left,.stick-right{top:36px}.joystick-caption{bottom:90px;left:18px;font-size:8px}.look-pad{width:66px;height:66px;right:max(45px,env(safe-area-inset-right));bottom:119px}.look-caption{bottom:102px;font-size:8px}.speed-button{bottom:116px;left:138px;font-size:9px;padding:9px 12px}.walk-caption{top:61px;left:max(23px,env(safe-area-inset-left));padding:8px 11px}.walk-caption strong{font-size:11px}.walk-caption small{font-size:7px}.place-card,[data-mode=walk] .place-card{top:65px;max-height:calc(100dvh - 160px);width:220px;overflow:auto;padding:19px}.place-card .eyebrow{font-size:7px}.place-card h2{font-size:17px;margin:7px 0}.place-card p{font-size:10px;margin:5px 0;line-height:1.6}.text-link{font-size:10px;padding:6px 0}dialog{padding:25px;max-height:90dvh}dialog h2{font-size:22px;margin:10px 0 15px}.note-grid{margin:12px 0;gap:20px}[data-mode=walk] .view-tools{top:64px;right:79px}}
@media(orientation:portrait) and (max-width:700px){.rotate:not(.dismissed){display:flex}.brand small{display:none}.brand strong{font-size:12px}.brand-icon{width:28px;height:28px;font-size:19px}.header{left:15px;right:15px;top:max(14px,env(safe-area-inset-top))}.header-actions{gap:6px}.header .pill{font-size:9px;padding:0 10px}.mode-switch{top:66px}.intro{top:130px;left:25px}.intro h1{font-size:29px}.intro .eyebrow{font-size:7px}.bottom{left:12px;right:12px;padding:10px;gap:4px;bottom:max(36px,env(safe-area-inset-bottom))}.route-heading{display:none}.more-places{font-size:0}.more-places::after{content:'↗';font-size:16px;padding:5px}.hint{bottom:119px;font-size:8px;max-width:90vw;white-space:normal;text-align:center}.compass{top:125px;right:24px}.view-tools{right:18px}.fineprint{left:16px;right:16px;bottom:14px}.place-card{top:128px;left:18px}.walk-caption{top:126px;left:18px}.joystick{bottom:155px;left:24px}.joystick-caption{bottom:135px;left:18px}.look-pad{bottom:166px;right:33px}.look-caption{bottom:146px;right:17px}.speed-button{left:40px;bottom:280px}[data-mode=walk] .view-tools{top:197px;right:24px;display:grid}[data-mode=walk] .place-card{top:182px}dialog{padding:26px;width:92vw}dialog h2{font-size:23px}.note-grid{grid-template-columns:1fr;gap:0}#all-places{grid-template-columns:1fr}.loading h2{font-size:22px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
#fallback{color:var(--ink);font-size:12px;margin-top:16px;text-decoration:none;border-bottom:1px solid var(--line);padding:6px}
.travel-controls{position:absolute;bottom:180px;left:183px;display:flex;gap:8px;align-items:center;pointer-events:auto}.travel-controls .speed-button{position:static;border:1px solid #fff9;padding:11px 15px}.ride-button{background:#214b3eed;color:#f7f5ed;border:1px solid #ffffffa0;border-radius:24px;padding:12px 18px;font-size:11px;box-shadow:0 3px 15px #0f392321}.ride-button[aria-pressed=true]{background:#b77338ed}.travel-controls #speedometer{font-variant-numeric:tabular-nums;font-size:10px;min-width:47px;color:#275841;text-shadow:0 1px 4px #fff}.immersive-status{position:absolute;top:max(12px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);max-width:64%;padding:7px 14px;border-radius:20px;background:#f8f7eae0;font-size:10px;text-align:center;line-height:1.6;z-index:10;pointer-events:none}.immersive .brand,.immersive #about,.immersive .bottom,.immersive .fineprint,.immersive .view-tools,.immersive .compass,.immersive .walk-caption,.immersive .hint,.immersive .mode-switch,.immersive .intro{display:none}.immersive .header{justify-content:flex-end;pointer-events:none}.immersive #fullscreen{pointer-events:auto;background:#f7f5ede8}.immersive .joystick{bottom:max(45px,calc(env(safe-area-inset-bottom) + 25px))}.immersive .joystick-caption{bottom:max(25px,env(safe-area-inset-bottom))}.immersive .look-pad{bottom:max(60px,calc(env(safe-area-inset-bottom) + 40px))}.immersive .look-caption{bottom:max(40px,calc(env(safe-area-inset-bottom) + 20px))}.immersive .travel-controls{bottom:max(55px,calc(env(safe-area-inset-bottom) + 35px))}.immersive #toast{top:75px}.immersive .vignette{background:none}
@media(max-width:1000px){.travel-controls{bottom:145px;left:156px;gap:6px}.ride-button{padding:11px 14px;font-size:10px}.travel-controls .speed-button{padding:10px 12px;font-size:10px}}
@media(max-height:560px) and (orientation:landscape){.travel-controls{left:138px;bottom:115px;gap:6px}.ride-button{padding:10px 13px;font-size:9px}.travel-controls .speed-button{padding:9px 12px;font-size:9px}.travel-controls #speedometer{font-size:8px;min-width:40px}.immersive .travel-controls{bottom:max(42px,calc(env(safe-area-inset-bottom) + 22px))}.immersive .joystick{bottom:max(30px,calc(env(safe-area-inset-bottom) + 15px))}.immersive .joystick-caption{bottom:max(14px,env(safe-area-inset-bottom))}.immersive .look-pad{bottom:max(43px,calc(env(safe-area-inset-bottom) + 25px))}.immersive .look-caption{bottom:max(26px,calc(env(safe-area-inset-bottom) + 8px))}.immersive-status{font-size:8px;max-width:64%;top:10px;padding:5px 11px}.immersive #toast{top:62px}}
@media(orientation:portrait) and (max-width:700px){.travel-controls{left:24px;bottom:280px;gap:6px;flex-wrap:wrap;max-width:210px}.ride-button{font-size:10px}.immersive .travel-controls{bottom:180px;left:24px}.immersive-status{top:58px;max-width:87%;width:max-content}.immersive #toast{top:130px}}

.season-toggle{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;margin:18px 0 4px}.season-toggle input{width:18px;height:18px;accent-color:var(--green,#315f4c)}

/* Approved campus library-and-lake identity. ID specificity keeps the compact
   game HUD from restoring its old square character-placeholder dimensions. */
#app .brand-icon.campus-brand-icon{display:block;flex:none;width:72px;height:32px;border:0;border-radius:4px;object-fit:contain;background:#fffefa}
#app .loader-logo.campus-loader-logo{display:block;flex:none;width:min(250px,60vw);height:175px;max-height:28dvh;object-fit:contain;border:0;border-radius:0;margin-bottom:20px;background:none}
@media(max-width:700px),(max-height:560px) and (orientation:landscape){#app .brand-icon.campus-brand-icon{width:54px;height:24px}}
@media(max-height:560px) and (orientation:landscape){#app .loader-logo.campus-loader-logo{margin-bottom:8px}.loading h2{margin:10px 0}.loading p{margin:8px 0}}