*{box-sizing:border-box}html,body{margin:0;background:#e8f5ee;color:#284457;font-family:Inter,"Microsoft YaHei",sans-serif;overflow:hidden}button,select{font:inherit;touch-action:manipulation}button{cursor:pointer;color:#29465a;border:2px solid #bcced2;background:#fffdf5;border-radius:16px;min-height:44px;-webkit-tap-highlight-color:transparent;box-shadow:0 3px 0 #cfddd8}button:hover{filter:brightness(1.035);transform:translateY(-1px)}button:active{transform:translateY(2px);box-shadow:none}button:focus-visible,select:focus-visible{outline:3px solid #9c83d7;outline-offset:3px}[hidden]{display:none!important}#app{height:100svh;display:grid;grid-template-rows:88px minmax(0,1fr) 104px;padding:env(safe-area-inset-top) max(22px,env(safe-area-inset-right)) env(safe-area-inset-bottom) max(22px,env(safe-area-inset-left));max-width:1600px;margin:auto}header{display:flex;align-items:center;gap:12px}.brand{display:flex;align-items:center;gap:10px;flex:1;font-size:23px;font-weight:850;letter-spacing:1px}.brand b{display:flex}.brand small{display:block;font-size:9px;letter-spacing:2.4px;color:#698a89;margin-top:4px}.stats{display:flex;gap:12px}.stats>span{border-radius:16px;padding:8px 15px;background:#ffffffa6;font-size:10px;color:#577779;min-width:76px}.stats strong{display:block;font-size:23px;color:#284457;margin-top:3px;font-variant-numeric:tabular-nums}.stats em{font-size:11px;font-style:normal;color:#668187}header button{width:46px;height:46px;background:#f8fff9}.stats>span:last-child{background:#fff1c9}#stage{position:relative;overflow:hidden;border:4px solid #fffdf2;border-radius:28px;box-shadow:0 7px 0 #bacfcb;min-height:0;background:#c3e2e8}canvas{width:100%;height:100%;display:block;touch-action:none}.topline{position:absolute;top:16px;left:18px;right:18px;display:flex;justify-content:space-between;gap:12px;font-size:11px;font-weight:700;pointer-events:none}.topline>span{background:#fffdf1e8;border:1px solid #c2d5cf;border-radius:20px;padding:6px 12px;color:#49616b}#progress{position:absolute;top:0;height:5px;width:100%;background:#ffffff55}#progress i{display:block;height:100%;width:0;background:#ffa96c}#overlay{position:absolute;inset:0;display:flex;align-items:center;padding:26px 36px;overflow:auto;background:linear-gradient(90deg,#eff9f2f2,#eff9f2b8 44%,#eff9f200 82%)}#overlay article{max-width:445px;width:100%;margin:auto 0;padding:12px 0}.eyebrow{font-size:10px;color:#3b8e83;font-weight:800;letter-spacing:1.3px}h1{font-size:clamp(35px,4.3vw,59px);line-height:1.13;letter-spacing:1px;margin:15px 0;color:#29455a}article p{font-size:13px;line-height:1.75;color:#537577;margin:12px 0}.tips{display:flex;gap:12px;font-size:11px;color:#5e6f82;margin:12px 0}.tips span{padding:7px 10px;border-radius:9px;background:#fff8e6}.primary{display:block;background:#ffb56d;color:#3c4351;border:2px solid #e09555;box-shadow:0 4px 0 #d78d50;font-weight:850;padding:13px 18px;text-align:left}.primary span{float:right}#choices{display:grid;gap:9px;margin:15px 0;font-size:12px;font-weight:700}#choices label{display:flex;align-items:center;gap:12px}select{min-height:44px;min-width:0;flex:1;width:0;background:#fffdf6;color:#315765;border:2px solid #bdd3ce;border-radius:12px;padding:7px 9px}#menu-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}#start,#next{width:100%;min-height:48px}#exit,#help,#export{font-size:11px;min-height:38px;padding:7px 10px;box-shadow:none;border:0;background:transparent;color:#4b7277}#exit{background:#fff3d5;border:1px solid #e3c897}#help:hover,#export:hover{background:#dbeee4}#legacy{font-size:10px!important;color:#64847f!important;margin:10px 0 0;line-height:1.5}.footnote{font-size:10px;color:#64847f}footer{display:flex;align-items:center;justify-content:space-between;gap:16px}.route span,.route small{display:block;font-size:10px;color:#64847f}.route b{display:block;font-size:15px;margin:7px 0;color:#325764}.route i{color:#9ab7ac;font-style:normal;margin:0 10px}.controls{display:flex;gap:13px}.controls button{width:152px;height:66px;display:flex;align-items:center;justify-content:center;gap:18px;font-size:29px}.controls span{font-size:16px;font-weight:850}.controls small{display:block;font-size:9px;font-weight:500;margin-top:4px}#jump{background:#ffb56d;color:#3c4351;border-color:#e09555;box-shadow:0 4px 0 #d78d50}#slide{background:#d7cef4;border-color:#aaa0d2;box-shadow:0 4px 0 #aaa0d2}#toast{position:absolute;left:50%;top:18%;transform:translateX(-50%);color:#365a64;font-size:13px;font-weight:800;white-space:nowrap;pointer-events:none;background:#fff9df;border-radius:24px;padding:8px 14px;box-shadow:0 3px 0 #a2b9b04a}#toast:empty{display:none}
@media(max-width:600px){#app{padding-left:max(10px,env(safe-area-inset-left));padding-right:max(10px,env(safe-area-inset-right));grid-template-rows:76px minmax(0,1fr) 94px}header{gap:6px}.brand{font-size:16px;letter-spacing:0;gap:4px}.brand svg{width:31px;height:31px}.brand small{font-size:7px;letter-spacing:1px}.stats{gap:5px}.stats>span{padding:6px 7px;min-width:38px;font-size:9px}.stats strong{font-size:18px}.stats em{display:none}header button{width:38px;min-height:42px;height:42px;border-radius:12px}.topline{left:10px;right:10px;top:12px;font-size:9px;gap:5px}.topline>span{padding:5px 8px}#stage{border-radius:23px;border-width:3px}#overlay{padding:24px 20px;background:linear-gradient(180deg,#f1faf3f5,#eff9f2dc 70%,#eff9f299)}#overlay article{padding:0;max-width:none}h1{font-size:38px;margin:12px 0}.eyebrow{font-size:8px;letter-spacing:.7px}.tips,.footnote:not(#legacy){display:none}article p{font-size:12px;margin:10px 0}#choices{font-size:12px;margin:12px 0}.route{display:none}.controls{width:100%;gap:12px}.controls button{width:50%;height:64px}#toast{font-size:11px;max-width:94%;white-space:normal;text-align:center}}
@media(max-width:600px) and (max-height:650px) and (orientation:portrait){#overlay{padding:17px}h1{font-size:27px;margin:8px 0}.eyebrow{font-size:7px}article p{font-size:11px;margin:7px 0}#choices{margin:9px 0;gap:6px}select{min-height:38px;padding:5px}#start,#next{min-height:43px;padding:10px 14px}#help,#export,#exit{min-height:34px;padding:5px 8px}#menu-actions{gap:5px}#legacy{font-size:9px!important;margin-top:6px}}
@media(orientation:landscape) and (max-height:500px){#app{grid-template-rows:54px minmax(0,1fr) 64px;padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}header{gap:8px}.brand{font-size:18px}.brand svg{width:32px;height:32px}.brand small{display:none}.stats>span{padding:3px 9px}.stats strong{font-size:18px}.stats em{font-size:9px}header button{height:40px;min-height:40px;width:40px}.route{display:block}.route small{display:none}.route span{font-size:8px}.route b{font-size:12px;margin:4px 0}.controls{width:auto;gap:10px}.controls button{width:124px;height:47px;font-size:24px}.controls span{font-size:14px}.controls small{font-size:8px}#stage{border-radius:19px}.topline{top:9px;font-size:9px}.topline>span{padding:4px 8px}#overlay{padding:12px 20px;background:linear-gradient(90deg,#eff9f2f5,#eff9f2d9)}#overlay article{max-width:780px;width:100%;display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:5px 20px;padding:0;align-content:center}#overlay h1,#overlay .eyebrow,#overlay .tips,#overlay .footnote:not(#legacy){display:none}#message{grid-column:1;grid-row:1;font-size:11px;line-height:1.45;margin:0}#choices{grid-column:1;grid-row:2;margin:0;font-size:11px;gap:5px}select{min-height:35px;padding:4px 7px;border-radius:9px}#menu-actions{grid-column:2;grid-row:1/4;align-self:center;display:flex;flex-direction:column;gap:3px}#menu-actions button{width:100%;margin:0;min-height:30px;padding:5px 10px}#menu-actions #start,#menu-actions #next{min-height:41px}#legacy{grid-column:1;grid-row:3;font-size:9px!important;margin:0}#toast{font-size:10px;top:22%;padding:5px 10px}}
@media(orientation:landscape) and (max-height:350px) and (max-width:650px){#overlay{padding:10px 13px}#overlay article{grid-template-columns:minmax(0,1fr) 148px;gap:4px 12px}.route{display:none}.controls{margin-left:auto;width:100%;justify-content:flex-end}.controls button{width:138px}.stats>span{min-width:42px}.topline{font-size:8px}#message{font-size:10px}.brand{font-size:16px}#choices label{gap:6px}}.brand small{white-space:nowrap}
/* Language menu remains reachable in the scrolling pause/start panel. */
.language-picker{display:flex;align-items:center;gap:10px;font-size:12px;margin:10px 0}.language-picker>span{flex:0 0 auto}.language-picker select{width:auto;flex:1;min-width:0;max-width:100%}.brand>span{min-width:0}.brand [data-i18n=name]{display:block;font-size:clamp(12px,2.5vw,23px);letter-spacing:0}.stats>span{min-width:0}.topline>span{min-width:0;white-space:normal}.controls span span{font:inherit}h1{overflow-wrap:anywhere}.tips{flex-wrap:wrap}#menu-actions button{overflow-wrap:anywhere}.language-picker select,#choices select{min-height:44px}
@media(max-width:600px){.brand b{display:none}.brand{min-width:0;flex:1}.brand [data-i18n=name]{font-size:13px}.stats>span{padding:5px}.stats{gap:3px}header{gap:4px}.stats>span>span{font-size:8px}.brand small{font-size:6px;letter-spacing:.3px}.topline{font-size:8px}h1{font-size:30px}.language-picker{font-size:11px}}
@media(orientation:landscape) and (max-height:500px){#overlay article{align-content:start}.language-picker{grid-column:1;grid-row:2;margin:3px 0}#choices{grid-row:3}#legacy{grid-row:4}#menu-actions{grid-row:1/5}.route{max-width:42%}.route b{font-size:10px}.controls{flex-shrink:0}.language-picker select,#choices select{min-height:36px}#overlay{align-items:flex-start}.brand [data-i18n=name]{font-size:16px}}
@media(max-width:350px){.stats strong{font-size:16px}.brand [data-i18n=name]{font-size:12px}.stats>span>span{font-size:7px}header button{flex-shrink:0;width:34px}h1{font-size:22px}}#mission-name{font-size:10px;line-height:1.4;color:#537577;overflow-wrap:anywhere}#mission-name:empty{display:none}
@media(min-width:601px) and (min-height:501px){#overlay article{max-width:520px}h1{font-size:40px;margin:10px 0}article p{margin:8px 0;line-height:1.5}#choices{margin:10px 0;gap:6px}.tips{margin:8px 0}}