:root{--paper:#f5f1e7;--ink:#173c3c;--muted:#61766c;--teal:#287b72;--coral:#ce6d4d;--line:#d9ded2;--white:#fffdf7;--soft:#e6ece0}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}button,a,input{ -webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:4px}.shell{max-width:1264px;margin:auto;padding:0 40px}.masthead{display:flex;align-items:center;justify-content:space-between;padding:26px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;font-size:23px;font-weight:750;letter-spacing:2px}.brand-icon{display:grid;place-items:center;width:45px;height:45px;background:var(--teal);border-radius:50%;color:var(--white);font-size:30px}.brand small{display:block;margin-top:4px;font-size:9px;letter-spacing:2px;font-weight:600}.edition,footer{color:var(--muted);font-size:12px}.hero{display:grid;grid-template-columns:1fr auto;align-items:center;gap:25px;padding:46px 0 32px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:3px;color:var(--teal);margin:0 0 15px}h1{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:42px;line-height:1.35;letter-spacing:2px;margin:0 0 13px}p{line-height:1.8}.intro{color:var(--muted);font-size:14px;margin:0;max-width:570px}.travel-stamp{border:1px solid var(--teal);border-radius:100%;width:130px;height:130px;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(8deg);color:var(--teal)}.travel-stamp strong{font-family:Georgia,serif;font-size:44px;font-weight:400}.travel-stamp span{font-size:11px;letter-spacing:2px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:22px}.filters{display:flex;gap:7px;flex-wrap:wrap}.chip,.button{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:22px;padding:10px 17px;font-size:13px;min-height:42px}.chip.active,.primary{background:var(--teal);border-color:var(--teal);color:white}.button:hover:not(:disabled),.chip:hover{border-color:var(--teal)}.progress-note{font-size:12px;color:var(--muted)}.catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.level-card{position:relative;text-align:left;min-height:146px;border:1px solid var(--line);background:var(--white);border-radius:8px;padding:23px;overflow:hidden;transition:transform .15s,border-color .15s}.level-card:hover{transform:translateY(-3px);border-color:var(--teal)}.level-card.locked{background:#eeeee4}.card-top{display:flex;justify-content:space-between;font-size:10px;letter-spacing:2px;color:var(--muted)}.card-title{font-family:"Songti SC",serif;font-size:24px;font-weight:600;margin:13px 0 8px}.card-bottom{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:12px}.card-dots{letter-spacing:3px;color:var(--teal)}.rules{font-size:12px;color:var(--muted);margin:24px 0;line-height:1.9}.play-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:24px 0}.play-heading h1{font-size:28px;margin:0}.play-heading p{margin:3px 0 0;font-size:12px;color:var(--muted)}.play-count{font-family:Georgia,serif;font-size:30px;color:var(--teal);white-space:nowrap}.play-count small{font-family:system-ui;font-size:12px;margin-left:8px;color:var(--muted)}.boards{display:grid;grid-template-columns:1fr 1fr;gap:20px}.board-label{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:8px;letter-spacing:1px}.board{position:relative;overflow:hidden;background:var(--soft);width:100%;aspect-ratio:3/2;border:5px solid var(--white);box-shadow:0 2px 14px #173c3c12;border-radius:5px;touch-action:manipulation;cursor:crosshair}.board img{position:absolute;max-width:none;pointer-events:none;user-select:none}.marker{position:absolute;border:2px solid var(--teal);border-radius:50%;box-shadow:0 0 0 2px white;transform:translate(-50%,-50%);pointer-events:none}.marker.hint{border-color:var(--coral);background:#ce6d4d20}.marker i{position:absolute;right:-7px;top:-7px;font:normal 10px system-ui;background:var(--teal);border:1px solid white;border-radius:50%;width:17px;height:17px;color:white;text-align:center;line-height:15px}.loading{display:grid;place-items:center;position:absolute;inset:0;text-align:center;padding:20px;color:var(--muted);font-size:14px}.play-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:22px 0}.play-tools .actions{display:flex;gap:8px;flex-wrap:wrap}.status{font-size:13px;color:var(--muted);margin:0}.completion{display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--soft);padding:22px;border-radius:6px;margin-bottom:15px}.completion strong{font-family:"Songti SC",serif;font-size:23px}.completion p{font-size:12px;margin:5px 0 0;color:var(--muted)}.storage-warning{padding:12px;color:#903d25;background:#ffe7d6;font-size:13px}footer{margin:32px 0 20px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}footer a{color:inherit}.notice{pointer-events:none;position:fixed;z-index:10;bottom:max(20px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);margin:0;background:var(--ink);color:white;padding:12px 22px;border-radius:28px;font-size:13px;max-width:90vw;text-align:center;box-shadow:0 5px 20px #173c3c22}.notice:empty{display:none}@media(min-width:1400px){.shell{max-width:1400px}.boards{gap:28px}}@media(max-width:760px){.shell{padding:0 18px}.masthead{padding:18px 0}.brand{font-size:21px}.edition{display:none}.hero{padding:30px 0 25px;gap:12px}h1{font-size:30px}.intro{font-size:12px}.travel-stamp{width:86px;height:86px}.travel-stamp strong{font-size:30px}.travel-stamp span{font-size:9px;letter-spacing:1px}.catalog{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.level-card{padding:16px;min-height:135px}.card-title{font-size:22px}.card-bottom{flex-direction:column;gap:8px}.card-top{letter-spacing:1px}.chip{padding:8px 13px}.boards{grid-template-columns:1fr;gap:17px}.play-heading{margin:17px 0}.play-heading h1{font-size:24px}.play-count{font-size:25px}.play-count small{display:block;font-size:10px}.play-tools{padding:16px 0}.play-tools .actions{width:100%}.play-tools button{flex:1;white-space:nowrap;padding:10px 12px}.completion{padding:17px;align-items:flex-start}.completion strong{font-size:20px}.completion .button{white-space:nowrap}footer{margin-top:22px}.board{border-width:3px}.rules{font-size:11px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Final mobile polish: keep transient notices away from bottom game controls. */
@media(max-width:760px){.notice{top:max(12px,env(safe-area-inset-top));bottom:auto;width:calc(100vw - 36px);max-width:480px;padding:9px 14px;font-size:12px;line-height:1.5;pointer-events:none}.hero h1{text-wrap:balance;font-size:clamp(24px,6.8vw,30px);letter-spacing:1px}}