*{box-sizing:border-box}html{background:#1f3937;color:#f4e8cb;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}body{margin:0;min-height:100dvh;background:radial-gradient(circle at 20% 0,#496b5d,#223e3a 60%,#192f2f)}button{font:inherit;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,#board:focus-visible{outline:3px solid #efc669;outline-offset:3px}a{color:inherit;text-decoration:none}.app{width:min(700px,calc(100% - 24px));margin:auto;padding:10px 0}header{height:48px;display:flex;align-items:center;justify-content:space-between;gap:8px}header>a{font-size:11px;color:#c4d2bb}header strong{text-align:center;font-size:22px;letter-spacing:3px}header small{display:block;font-size:6px;letter-spacing:2px;color:#91a999;margin-top:2px}button{min-width:44px;min-height:44px;border:1px solid #92734b;border-radius:11px;background:#f5e3b9;color:#4e4234;box-shadow:0 3px #805e3c;padding:7px 12px;font-weight:800}#sound{font-size:10px;min-height:38px}.bar{display:flex;justify-content:space-between;align-items:center;margin:8px 0}.levels{display:flex;gap:6px}.levels button{min-height:40px;font-size:11px}.levels .active{background:#bf5947;color:#fff2cf;border-color:#873e35;box-shadow:0 3px #873e35}.score{display:flex;gap:14px;text-align:center;color:#9db3a3;font-size:8px}.score b{display:block;color:#f4e1b7;font-size:18px}.table{position:relative;width:min(100%,535px);margin:auto;padding:17px 17px 20px;border-radius:38px;background:linear-gradient(145deg,#8c6945,#61452e);box-shadow:inset 0 4px #ae8a5c,0 9px #402f25,0 18px 30px #12262588}.turn{text-align:center;height:25px;font-size:11px;color:#f7e2b8;letter-spacing:1px}.board-wrap{position:relative}.board{position:relative}#board{display:grid;grid-template-columns:repeat(7,1fr);gap:7px;padding:10px;border-radius:18px;background:#2d5550;box-shadow:inset 0 5px #183b3a,0 3px #a17b4e;outline:none}#board .cell{aspect-ratio:1;border-radius:50%;background:#1a3938;box-shadow:inset 0 4px 6px #0e2828,0 1px #799177;position:relative}#board .cell.p1{background:radial-gradient(circle at 33% 27%,#f6a080 0 11%,#d9604c 35%,#96372f 80%);box-shadow:inset -4px -5px 8px #762c29,0 2px 2px #163332}#board .cell.p2{background:radial-gradient(circle at 33% 27%,#fff1a4 0 11%,#e8b84f 38%,#a86c2d 82%);box-shadow:inset -4px -5px 8px #835026,0 2px 2px #163332}.cell.win{animation:pulse .7s ease-in-out infinite alternate;outline:4px solid #fff4b5;outline-offset:1px;z-index:3}@keyframes pulse{to{filter:brightness(1.3);transform:scale(.88)}}#selector{position:absolute;inset:0;display:grid;grid-template-columns:repeat(7,1fr);z-index:4}#selector button{min-width:0;min-height:44px;height:100%;padding:0;border:0;border-radius:10px;background:transparent;box-shadow:none;color:transparent}#selector button:hover,#selector button.selected{background:linear-gradient(#fff2b72b,#fff2b705);box-shadow:inset 0 3px #f7d078}#selector button:disabled{cursor:default}.thinking #board{filter:saturate(.75)}#overlay{position:absolute;inset:0;border-radius:38px;background:#f7e7c9f5;color:#38564c;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px;z-index:8}#overlay[hidden]{display:none}.token-mark{width:36px;height:36px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#ffd0a8,#d85e49 45%,#92362f);box-shadow:0 4px #774037}#kicker{font-size:7px;letter-spacing:2px;color:#8b7860;margin-top:10px}h1{font-size:clamp(24px,5vw,35px);line-height:1.2;margin:7px 0}h1 em{font-style:normal;display:block;color:#bc5545}#copy{font-size:11px;line-height:1.8;margin:3px 0 10px;color:#6e7661}#primary{background:#315e55;color:#fff0c8;border-color:#203f3b;box-shadow:0 4px #203f3b;min-width:175px}#overlay a{font-size:9px;margin-top:11px;color:#7e8068}.controls{display:flex;justify-content:center;align-items:center;gap:8px;margin:13px 0 0}.controls button{font-size:11px}.controls span{font-size:9px;color:#8ca298}.notice,#notice{text-align:center;min-height:17px;margin:9px 0 5px;font-size:10px;color:#afc1aa}footer{display:flex;justify-content:space-between;font-size:8px;color:#789487}.paused .board-wrap{filter:blur(3px);opacity:.5}[hidden]{display:none!important}
@media(max-width:500px){.app{width:calc(100% - 12px);padding:5px 0}header{height:43px}header strong{font-size:18px;letter-spacing:2px}header small{font-size:5px}.bar{margin:4px 0}.levels button{min-height:38px;padding:5px 10px}.score{gap:10px}.score b{font-size:15px}.table{width:100%;padding:10px 8px 13px;border-radius:22px}.turn{height:23px}.board-wrap{width:100%}#board{gap:4px;padding:7px;border-radius:13px}#selector button{border-radius:5px}.controls{margin-top:10px}.controls span{display:none}.notice,#notice{margin:7px 0 3px}footer{justify-content:center}footer span:last-child{display:none}#overlay{border-radius:22px;padding:13px}}
@media(max-width:340px){header strong{font-size:16px}.score{gap:7px}.table{padding-left:5px;padding-right:5px}#board{gap:3px;padding:5px}.controls{gap:5px}.controls button{padding:6px 10px}}
@media(max-height:500px) and (orientation:landscape){.app{height:100svh;width:calc(100% - 16px);display:grid;grid-template-columns:310px 1fr;grid-template-rows:48px 52px 1fr 22px;gap:5px 12px;padding:5px 0}header{grid-column:1;grid-row:1;height:auto}.bar{grid-column:1;grid-row:2;margin:0}.table{grid-column:2;grid-row:1/5;width:min(100%,430px);padding:7px 10px 12px;border-radius:24px;align-self:center}.turn{height:20px}#board{gap:4px;padding:7px}.controls{grid-column:1;grid-row:3;align-self:center;margin:0}.notice,#notice{grid-column:1;grid-row:4;margin:0}footer{display:none}#overlay{border-radius:24px;padding:12px}#copy{font-size:10px;line-height:1.55}h1{font-size:25px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
#sound{min-height:44px}