:root{font-family:'Noto Sans SC',system-ui,sans-serif;color:#24352d;background:#f7faf8;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid #775af0;outline-offset:4px}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}.top{max-width:1320px;padding:25px 40px;display:flex;align-items:center;justify-content:space-between;margin:auto;border-bottom:1px solid #e3eae5}.brand{display:flex;gap:11px;align-items:center;font-size:19px;font-weight:900;letter-spacing:.5px}.brand-icon{display:grid;place-items:center;background:#ffe34c;border:2px solid #24352d;border-radius:10px;width:39px;height:39px;transform:rotate(-7deg);font-size:25px;font-weight:900;box-shadow:2px 2px #24352d}.brand-sub{font-size:12px;margin-left:9px;font-weight:500;letter-spacing:2px;color:#7d8b83}.edition{font-size:12px;font-weight:700;letter-spacing:2px;color:#839189}.header-right{display:flex;gap:24px;align-items:center;font-size:13px}.best b{color:#6552ba;margin:0 4px}.icon-button{background:white;border:1px solid #dce5de;border-radius:8px;padding:8px 12px;font-size:13px;color:#465a4f}.icon-button span{font-weight:800;margin-left:4px}main{max-width:1320px;margin:auto;padding:34px 40px 0}.title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;display:flex;align-items:center;gap:8px;color:#6c7a70}.eyebrow span{width:7px;height:7px;border-radius:50%;background:#f09f28}h1{font-size:45px;line-height:1.35;letter-spacing:-2px;margin:8px 0 10px;font-weight:900}h1 span{position:relative;z-index:0}h1 span:after{content:'';position:absolute;left:1px;right:0;bottom:4px;height:14px;background:#ffe34c;z-index:-1;transform:rotate(-3deg)}.title-row p{font-size:14px;color:#6b7e71;margin:0}.title-stamp{font-size:24px;line-height:1.1;font-weight:900;border:2px solid #cad8cd;padding:13px 19px;color:#9aad9e;transform:rotate(9deg);border-radius:9px;letter-spacing:1px}.title-stamp span{font-size:15px}.game-shell{border:1px solid #d7e2d9;border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 10px 28px #203b2910}.hud{display:flex;gap:40px;padding:20px 27px;align-items:center;border-bottom:1px solid #e2e9e3}.hud-item{min-width:115px}.hud-label{font-size:12px;letter-spacing:1px;color:#7c8a81;display:block;margin-bottom:5px}.hud b{font-size:27px;line-height:1;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:1px}.unit{font-size:12px;margin-left:6px;color:#8b978d}.score-hud b{color:#7960cb}.life-hud #hearts{color:#f57373;letter-spacing:4px;font-size:23px;white-space:nowrap}.sprint-hud{margin-left:auto;width:170px}.sprint-label{display:flex;justify-content:space-between}.sprint-label #sprint-number{font-size:12px;color:#90a594}.sprint-track{height:9px;background:#eaf0eb;border-radius:9px;overflow:hidden;margin-top:6px}.sprint-track div{height:100%;width:100%;background:#8ad58d;border-radius:9px;transition:width .08s}.pause-button{color:#485e50;border:1px solid #dce5de;background:#f8fbf9;border-radius:9px;width:40px;height:40px;font-size:20px;font-weight:800}.arena-wrap{position:relative;background:#dbe9da}canvas{display:block;width:100%;height:auto;aspect-ratio:1040/624;touch-action:none}.map-label{position:absolute;top:17px;left:21px;font-size:11px;font-weight:700;letter-spacing:1px;color:#779174;pointer-events:none}.arena-bottom{position:absolute;bottom:16px;left:21px;right:21px;display:flex;gap:16px;font-size:11px;color:#5f7e62;pointer-events:none}.arena-bottom span{display:flex;align-items:center;gap:6px}.arena-bottom #danger{margin-left:auto}.player-dot,.dragon-dot{width:8px;height:8px;border-radius:50%;background:#8563ee}.dragon-dot{background:#ffc935}.overlay{position:absolute;inset:0;display:grid;place-items:center;background:#dce9d94a;backdrop-filter:blur(3px)}.overlay[hidden]{display:none}.start-card{background:#fffffff5;border:1px solid #fff;border-radius:20px;box-shadow:0 12px 50px #204b3220;width:370px;max-width:90%;padding:23px 32px 25px;display:flex;align-items:center;flex-direction:column;text-align:center}.card-tag{background:#fff3b2;color:#927023;font-size:11px;font-weight:800;letter-spacing:1px;padding:5px 12px;border-radius:20px}.mascot{margin:7px 0 -5px;object-fit:contain;filter:drop-shadow(0 6px 4px #573a0510)}.start-card h2{font-size:25px;letter-spacing:-.5px;margin:6px 0 11px;font-weight:900}.start-card p{color:#819086;font-size:13px;line-height:1.9;margin:0 0 19px}.start-button{display:flex;align-items:center;justify-content:center;gap:29px;width:100%;min-height:51px;border:2px solid #26362d;background:#ffe34c;border-radius:9px;box-shadow:0 3px 0 #26362d;font-weight:900;color:#26362d;font-size:16px;transition:transform .15s,box-shadow .15s}.start-button:hover{background:#ffeb78;transform:translateY(-2px);box-shadow:0 5px 0 #26362d}.start-button:active{transform:translateY(2px);box-shadow:0 1px 0 #26362d}.start-button span{font-family:monospace;font-size:10px;border:1px solid #6b601b45;border-radius:3px;padding:3px 5px;letter-spacing:1px;font-weight:500}.card-hint{font-size:11px;color:#99a299;margin-top:15px}.result{font-size:14px;line-height:1.9;background:#f3f6f3;border-radius:8px;width:100%;padding:8px;margin-bottom:15px}.result[hidden]{display:none}.game-footer{display:flex;align-items:center;gap:26px;padding:17px 26px;font-size:12px;color:#849086;flex-wrap:wrap}.game-footer>div{display:flex;align-items:center;gap:9px}.key{font-size:11px;background:#f5f8f5;border:1px solid #e0e7e1;border-bottom-width:2px;border-radius:4px;padding:3px 6px;font-family:monospace;font-weight:600;color:#57695b;white-space:nowrap}.or{color:#c1ccc2}.footer-tip{margin-left:auto;font-size:11px;color:#a1aca3}.guide{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;padding:29px 7px 25px}.guide-item{display:flex;align-items:flex-start;gap:13px}.guide-number,.guide-symbol{display:grid;place-items:center;width:39px;height:39px;flex-shrink:0;font-size:14px;font-weight:800;background:#eaf1e9;color:#718b70;border-radius:12px}.guide-symbol.star{background:#fff2c5;color:#c09925;font-size:27px}.guide-symbol.bolt{background:#ede9f9;color:#9b85d4;font-size:35px}.guide h3{font-size:14px;font-weight:700;margin:0 0 5px}.guide p{font-size:12px;color:#8b998e;margin:0;line-height:1.8}.page-footer{display:flex;justify-content:space-between;padding:19px 0 23px;border-top:1px solid #e1e9e2;color:#a3afa5;font-size:11px;letter-spacing:.4px}.touch-controls{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1500px){main{padding-top:45px}.title-row{margin-bottom:32px}}
@media(max-width:1000px){.hud{gap:20px}.hud-item{min-width:92px}.sprint-hud{width:145px}.edition{display:none}.guide{gap:15px}.guide-item{gap:9px}.footer-tip{display:none}}
@media(max-width:680px){.top{padding:17px 18px}.brand{font-size:16px}.brand-sub,.best{display:none}.header-right{gap:8px}main{padding:24px 14px 0}.title-row{margin-bottom:20px}h1{font-size:35px;margin-top:7px}.title-row p{font-size:12px}.title-stamp{font-size:19px;padding:9px 12px;margin-left:8px}.title-stamp span{font-size:12px}.eyebrow{font-size:11px;letter-spacing:1px}.hud{padding:14px 12px;gap:15px;flex-wrap:wrap}.hud-item{min-width:0}.hud b{font-size:22px}.hud-label{font-size:10px;margin-bottom:3px}.life-hud #hearts{font-size:18px;letter-spacing:1px}.sprint-hud{width:90px}.sprint-label #sprint-number{display:none}.pause-button{width:32px;height:32px;font-size:17px;margin-left:auto}.game-shell{border-radius:13px}canvas{height:380px;aspect-ratio:auto;object-fit:fill}.map-label{font-size:9px;top:11px;left:13px}.arena-bottom{bottom:9px;left:13px;right:13px;font-size:9px;gap:9px}.start-card{width:300px;padding:17px 24px 20px}.mascot{width:92px;height:92px}.start-card h2{font-size:21px}.start-card p{font-size:12px;margin-bottom:13px}.card-hint{font-size:10px}.game-footer{padding:12px;gap:10px;font-size:10px}.game-footer .key{font-size:9px}.game-footer>div{gap:5px}.guide{grid-template-columns:1fr;padding:20px 4px;gap:17px}.guide h3{font-size:14px}.guide p{font-size:12px}.page-footer{font-size:10px}.page-footer span:last-child{display:none}.touch-controls{display:flex;justify-content:space-between;align-items:center;margin:15px 14px 0;touch-action:none;user-select:none}.dpad{display:grid;grid-template-columns:46px 46px 46px;grid-template-rows:44px 44px;gap:5px}.dpad button{border:1px solid #d0ded2;border-bottom:3px solid #bacfbe;border-radius:11px;color:#66896a;background:#e5eee4;font-size:20px;touch-action:none}.up{grid-column:2}.left{grid-row:2;grid-column:1}.down{grid-row:2;grid-column:2}.right{grid-row:2;grid-column:3}.dpad button.active{background:#b6d3b3}.sprint-button{width:90px;height:90px;border-radius:50%;border:2px solid #a68c21;border-bottom:5px solid #a68c21;background:#ffe34c;color:#5c541e;font-size:27px;display:flex;flex-direction:column;align-items:center;justify-content:center;touch-action:none}.sprint-button span{font-size:11px;font-weight:700}.sprint-button.active{background:#f5cb30}}
@media(pointer:coarse) and (min-width:681px){.touch-controls{display:flex;justify-content:space-between;margin:16px 20px;touch-action:none}.dpad{display:flex;gap:8px}.dpad button,.sprint-button{min-width:54px;min-height:54px;border:1px solid #abc3af;border-radius:10px;background:#e4eee3;touch-action:none}.sprint-button{background:#ffe34c;padding:8px 18px}.sprint-button span{font-size:12px;margin-left:8px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.rescue-strip{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:12px 26px;border-bottom:1px solid #e2e9e3;background:#fcfdfb}.rescue-note{font-size:13px;color:#819086;margin-right:8px}.rescue-pill{font-size:13px;color:#8c734a;background:#fff4df;padding:5px 10px;border:1px solid #ebd8b7;border-radius:6px;white-space:nowrap;font-variant-numeric:tabular-nums}.rescue-pill.rescuing{background:#fff0a1;border-color:#d5ac2d;color:#6b591d}.rescue-pill.saved{background:#e5f3e9;border-color:#a6d4b4;color:#36885f}@media(max-width:680px){.rescue-strip{padding:10px 12px;gap:6px}.rescue-note{width:100%;margin:0;font-size:12px}.rescue-pill{font-size:12px;padding:4px 6px}.title-row h1{font-size:30px;letter-spacing:-1px}.title-row p{max-width:280px;line-height:1.8}}

.action-bar{display:flex;align-items:stretch;flex-wrap:wrap;gap:10px;padding:13px 26px;background:#faf8ff;border-bottom:1px solid #e8e0f2}.wallet{font-size:13px;font-weight:700;color:#806624;margin-right:auto;align-self:center}.wallet b{font-size:23px;margin-left:8px;font-variant-numeric:tabular-nums}.wallet small{display:block;font-size:11px;font-weight:400;color:#8b8194;margin-top:4px}.action-bar button{padding:8px 12px;border:1px solid #c6b5df;border-radius:8px;background:#fff;color:#61408d;font-size:13px;font-weight:700;min-height:54px}.action-bar button small{display:block;font-size:10px;font-weight:400;color:#8b7c9d;margin-top:5px}.action-bar button:enabled:hover{background:#eee5ff}.action-bar kbd{font:700 12px monospace;background:#eee7f8;padding:2px 5px;border-radius:3px;margin-right:5px}.action-status{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px;padding:8px 26px;font-size:12px;color:#796689;min-height:34px;border-bottom:1px solid #eee8f4}.action-status #portal-status{margin-left:auto;white-space:nowrap;font-variant-numeric:tabular-nums}.player-emblem{display:inline-block;width:16px;height:16px;border-radius:50%;background:#fff url('tsinghua-emblem.jpg') center / 52px auto no-repeat}
@media(max-width:680px){.action-bar{padding:10px 12px;gap:7px}.wallet{width:100%;margin:0}.wallet small{display:inline;margin-left:12px;font-size:10px}.action-bar button{flex:1;min-width:90px;padding:8px 5px;font-size:11px}.action-bar button small{font-size:9px}.action-status{padding:8px 12px;font-size:11px;line-height:1.6}}

/* Game surface with a dedicated live status sidebar. */
.top{max-width:1500px;padding:18px 28px}.header-right{gap:12px}
.help-button{display:grid;place-items:center;width:28px;height:28px;border:1px solid #c8b9e0;border-radius:50%;background:#f3ecff;color:#7352aa;font-size:17px;font-weight:800;padding:0}
.help-button:hover{background:#e8dbfb}.help-button:focus-visible{outline-offset:5px}
main{max-width:1500px;padding:22px 28px 0}.title-row{margin-bottom:18px}.title-row h1{font-size:34px;margin:5px 0 8px;letter-spacing:-1px}.title-row p{font-size:13px}
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 252px;gap:18px;align-items:start}.game-main{min-width:0}
.status-panel{border:1px solid #d7e2d9;border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 8px 24px #203b2909}
.status-heading{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;background:#f6f9f4;border-bottom:1px solid #e1e9de}
.status-heading h2{font-size:16px;margin:0 0 5px}.status-heading #game-state{font-size:11px;color:#7c8d7e}
.status-panel .hud{display:flex;flex-direction:column;align-items:stretch;gap:16px;padding:18px;border-bottom:1px solid #e2e9e3}
.status-panel .hud-item{min-width:0}.status-panel .hud b{font-size:26px}
.status-panel .sprint-hud{margin:0;width:auto}.status-panel .sprint-label #sprint-number{display:block}
.status-panel .status-numbers{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.status-panel #star-points{color:#b39228}.status-panel .life-hud #hearts{font-size:23px;letter-spacing:3px}
.status-facts{display:grid;gap:8px;font-size:12px;color:#78877d}.status-facts span{display:flex;justify-content:space-between;align-items:center;gap:6px}
.status-panel .status-facts b{font-size:12px;letter-spacing:0;color:#465c4d;margin-left:auto}
.danger-status{font-size:11px;color:#92722b;min-height:16px}
.status-panel .rescue-strip{display:flex;flex-direction:column;align-items:stretch;padding:16px 18px;gap:7px;background:#fffefa}
.rescue-summary{display:flex;align-items:center;justify-content:space-between;margin-bottom:5px;color:#657867;font-size:13px}.rescue-summary b{font-size:24px;color:#4b9b72}
.status-panel .rescue-pill{font-size:12px;padding:6px 9px}.portal-panel{padding:16px 18px}
.portal-panel h3{font-size:13px;margin:0 0 5px}.portal-panel #portal-status{display:block;font-size:11px;color:#8a7c9c;line-height:1.6}
.portal-list{display:grid;gap:6px;margin-top:10px;font-size:11px;color:#775595;font-variant-numeric:tabular-nums}.portal-list span{background:#f4eefc;border-radius:5px;padding:6px 8px}.portal-list span.cooling{color:#8d948d;background:#f1f3f0}
.game-main .action-bar{justify-content:flex-start;padding:12px 18px;gap:10px}.game-main .action-bar button{flex:1;max-width:240px}.game-main .action-status{padding:8px 18px;line-height:1.5}
.game-main .game-footer{gap:18px;padding:12px 18px}.game-main .footer-tip{margin-left:auto}
.page-footer{margin-top:22px}
.tutorial-dialog{width:min(620px,calc(100vw - 28px));max-height:calc(100dvh - 40px);padding:0;border:1px solid #e2e7df;border-radius:18px;color:#293c30;box-shadow:0 24px 80px #17302030;overflow:auto;background:#fff}
.tutorial-dialog::backdrop{background:#20362977;backdrop-filter:blur(3px)}
.tutorial-head{display:flex;justify-content:space-between;align-items:center;padding:22px 26px 16px;border-bottom:1px solid #e6eee3;background:#f8fbf5}
.tutorial-head h2{margin:6px 0 0;font-size:25px}.tutorial-close{width:34px;height:34px;border:1px solid #d5dfd1;border-radius:50%;background:#fff;color:#6d7d70;font-size:25px;line-height:1}
.tutorial-content{padding:5px 26px 18px}.tutorial-content section+section{border-top:1px solid #edf0e9;margin-top:18px;padding-top:6px}
.tutorial-content h3{font-size:15px;color:#526d50;margin:18px 0 9px}.tutorial-content p,.tutorial-content dd{font-size:13px;line-height:1.85;color:#718171}
.tutorial-content p{margin:9px 0}.tutorial-content strong{color:#526d50}.tutorial-keys{margin:10px 0}.tutorial-keys>div{display:grid;grid-template-columns:180px 1fr;gap:12px;padding:8px 0;border-bottom:1px dashed #e4eadd}
.tutorial-keys dt{font-size:12px;align-self:center;color:#85703b}.tutorial-keys dd{margin:0}
.tutorial-keys kbd{padding:3px 6px;border:1px solid #dce5d6;border-radius:4px;background:#f5f8f1;font:600 12px monospace;white-space:nowrap;color:#57704f}
.tutorial-note{padding:15px 26px;border-top:1px solid #e6eee3;background:#fafbf8;font-size:12px;color:#8a9687}
@media(max-width:1000px) and (min-width:681px){.game-layout{grid-template-columns:minmax(0,1fr) 222px;gap:12px}.status-panel .hud,.status-panel .rescue-strip,.portal-panel,.status-heading{padding:14px}.game-main .footer-tip{display:none}}
@media(max-width:680px){.top{padding:14px 16px}.help-button{width:28px;height:28px}main{padding:18px 12px 0}.title-row h1{font-size:28px}.game-layout{grid-template-columns:minmax(0,1fr);gap:14px}.status-panel{border-radius:13px}.status-panel .hud{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px}.status-numbers,.status-facts,.danger-status{grid-column:1/-1}.status-panel .status-numbers{grid-template-columns:1fr 1fr}.status-facts{grid-template-columns:1fr 1fr;gap:10px}.status-panel .rescue-strip{display:grid;grid-template-columns:1fr 1fr;padding:14px;gap:7px}.rescue-summary{grid-column:1/-1}.status-panel .rescue-pill{font-size:11px;padding:6px}.portal-panel{padding:14px}.portal-list{grid-template-columns:1fr 1fr}.game-main .action-bar{padding:10px 12px;gap:6px}.game-main .action-bar button{padding:8px 4px;font-size:11px;min-width:0}.game-main .action-bar button small{font-size:9px}.game-main .action-status,.game-main .game-footer{padding:8px 12px;font-size:11px}.tutorial-head{padding:18px}.tutorial-content{padding:0 18px 16px}.tutorial-keys>div{grid-template-columns:130px 1fr;gap:8px}.tutorial-content p,.tutorial-content dd{font-size:12px}.tutorial-note{padding:12px 18px;font-size:11px}}

.sprint-detail{display:block;margin-top:5px;min-height:15px;font-size:10px;color:#8a7c9c}.status-panel .sprint-label #sprint-number{white-space:nowrap;font-variant-numeric:tabular-nums;font-size:11px}.sprint-button:disabled{opacity:.55}