:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#1d1d1f;background:#f5f5f7;font-synthesis:none;--blue:#007aff;--muted:#777982;--line:#e6e6eb;--red:#c84343;--radius:20px;color-scheme:light}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{border:0;cursor:pointer;min-height:44px;border-radius:12px;padding:10px 16px;background:transparent;color:var(--blue);font-weight:550;touch-action:manipulation}button:hover{background:#eaf2ff}button:disabled{cursor:default;color:#92949c;background:#ededf1}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #80baff;outline-offset:3px}[hidden]{display:none!important}h1,h2,h3,p{margin:0}h1{font-size:32px;letter-spacing:-1px;font-weight:650;line-height:1.25;overflow-wrap:anywhere}h2{font-size:20px;font-weight:600;letter-spacing:-.35px}h3{font-size:18px}p{line-height:1.65}small,.subtle,.hint{color:var(--muted)}.hint{font-size:13px;line-height:1.65}.primary{background:var(--blue);color:white;min-height:48px}.primary:hover{background:#0064db}.primary:disabled{background:#dce8f8;color:#8a9fb8}.wide{width:100%}.secondary{background:#f0f0f4;color:#464650}.destructive{background:#e34c4c;color:white}.danger{color:#ce3a42}.quiet{font-size:14px}.topbar{background:#fff;border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}.topbar-inner{max-width:1120px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:12px 30px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-size:21px;font-weight:650}.brand img{border-radius:11px}nav{display:flex;gap:6px;align-items:center}.icon-button{font-size:27px;line-height:1;padding:6px 12px}main{max-width:1120px;margin:auto;padding:0 30px env(safe-area-inset-bottom)}.connection-line{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:20px 0 28px;font-size:12px;color:var(--muted)}#status::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#a1a1aa;margin-right:7px}#status.online::before{background:#34c759}.edition{letter-spacing:1px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:26px}.eyebrow{font-size:12px;color:var(--muted);margin-bottom:7px;letter-spacing:.8px}.pill{display:inline-flex;align-items:center;background:#e9e9ef;color:#73747c;border-radius:20px;padding:6px 11px;font-size:12px;white-space:nowrap}.card{background:white;border:1px solid #eaeaf0;border-radius:var(--radius);box-shadow:0 3px 16px #15152b03}.lobby-layout{display:grid;grid-template-columns:320px 1fr;gap:30px;min-height:450px}.welcome{padding:30px;display:flex;flex-direction:column;align-items:flex-start}.welcome h2{font-size:30px;line-height:1.4;letter-spacing:-.8px;margin:23px 0 12px}.welcome p{font-size:14px;color:var(--muted)}.welcome .primary{width:100%;margin:30px 0 13px;display:flex;justify-content:space-between}.welcome small{font-size:11px;align-self:center}.hero-pieces{display:flex;position:relative;padding:12px 0 0 3px}.hero-pieces span{display:grid;place-items:center;width:64px;height:64px;background:#faf8f4;border:3px double #c9564c;border-radius:50%;color:var(--red);font:34px "Songti SC","SimSun",serif;box-shadow:0 5px 8px #34221513;transform:rotate(-12deg)}.hero-pieces span+span{margin:14px 0 0 -10px;color:#33343a;border-color:#33343a;transform:rotate(12deg)}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 15px}.section-heading h2{font-size:17px}.section-heading .subtle{font-size:12px}.room-list{display:flex;flex-direction:column;gap:10px}.room-item{padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:14px}.room-title{font-size:16px;font-weight:550;overflow-wrap:anywhere}.room-meta{color:var(--muted);font-size:12px;margin-top:7px}.room-item button{flex-shrink:0;background:#eef5ff}.room-item button:disabled{background:#f4f4f7}.empty{text-align:center;padding:58px 24px}.empty-art{display:inline-grid;place-items:center;color:#b5b5bf;background:#f3f3f7;border:1px solid #e9e9ee;border-radius:50%;width:60px;height:60px;font:30px "Songti SC",serif;margin-bottom:22px}.empty h3{font-size:17px;font-weight:550}.empty p{font-size:13px;color:var(--muted);margin-top:10px}.waiting-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:26px;max-width:900px;margin:auto}.waiting-card,.room-guide{padding:28px}.player-row{display:flex;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid var(--line)}.player-row:last-child{border:0;margin-bottom:26px}.avatar{width:43px;height:43px;display:grid;place-items:center;border-radius:50%;color:var(--blue);background:#edf4ff;font-size:16px}.avatar.empty-avatar{background:#f1f1f5;color:#a2a2ad}.player-name{flex:1;font-size:16px}.player-status{font-size:12px;color:var(--muted)}.player-status.prepared{color:#26974d}.segmented{display:flex;background:#eeeef3;padding:4px;border-radius:11px;gap:3px}.segmented button{flex:1;font-size:14px;white-space:nowrap;padding:8px 3px;min-height:35px;color:#5a5a65;border-radius:8px}.segmented button.active{background:white;color:#222;box-shadow:0 1px 4px #00000012}.segmented button:disabled{background:transparent;color:#9898a0}.segmented button.active:disabled{background:#fafafa;color:#73737b}.waiting-card>.hint{margin:13px 0 23px}.mini-mark{font:28px "Songti SC",serif;color:var(--blue);background:#eef5ff;width:54px;height:54px;border-radius:16px;display:grid;place-items:center;margin-bottom:23px}.room-guide p{font-size:14px;color:var(--muted);margin-top:15px}.room-guide>.quiet{padding-left:0;margin-top:15px}.room-actions{display:flex;flex-wrap:wrap;gap:3px;margin-top:24px;border-top:1px solid var(--line);padding-top:13px}.room-actions button{font-size:13px;padding:8px 10px}.result-note{background:#eff6ff;color:#236fc7;font-size:14px;border-radius:10px;padding:12px;margin:0 0 22px}.game-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:40px;align-items:start;max-width:880px;margin:auto}.game-info{padding:25px;position:sticky;top:20px}.game-info .eyebrow{overflow-wrap:anywhere;margin-bottom:18px}.game-info .pill{background:#eff5ff;color:#2875d0}.game-info h1{font-size:26px;margin:16px 0 7px}.game-info>.subtle{font-size:13px}.timer-block{margin:30px 0;display:flex;flex-direction:column;gap:8px}.timer-block>span{font-size:12px;color:var(--muted)}#clock{font-size:42px;font-weight:550;font-variant-numeric:tabular-nums;letter-spacing:-1px}#clock.urgent{color:var(--red)}.board-area{min-width:0}.board-wrap{display:grid;grid-template-columns:36px minmax(0,1fr) 36px;gap:15px;max-width:415px;margin:auto;align-items:stretch}.board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));aspect-ratio:1/2;padding:10px;gap:5px;background:#e7e2d9;border:1px solid #d7d0c5;border-radius:14px;box-shadow:0 8px 30px #2923170a;user-select:none}.cell{display:grid;place-items:center;position:relative;padding:3px;min-height:0;min-width:0;background:#f2eee7;border-radius:6px;aspect-ratio:1;font-size:clamp(18px,3vw,29px);color:inherit}.cell:hover{background:#eae2d6}.cell.selected{outline:2px solid var(--blue);outline-offset:1px;background:#e2edfc}.cell.last{box-shadow:inset 0 0 0 1.5px #baa68d}.piece{width:94%;height:94%;display:grid;place-items:center;border-radius:50%;background:#fffaf0;border:3px double currentColor;font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-weight:600;box-shadow:0 2px 2px #4b321b22;line-height:1}.piece.red{color:#c4473e}.piece.black{color:#33343a}.piece.covered{color:#faf6ee;background:#577168;border:3px double #a3b2a4;font-size:.65em;box-shadow:0 2px 2px #243d3330}.piece.covered::before{content:"棋";opacity:.75;font-weight:400}.cell[aria-disabled="true"]{cursor:default}.captured{display:flex;flex-direction:column;gap:10px;align-items:center;padding-top:5px}.captured>small{font-size:11px;color:var(--muted);margin-bottom:4px;white-space:nowrap}.captured-piece{position:relative;display:grid;place-items:center;width:31px;height:31px;border:1px solid #dcdce4;border-radius:50%;color:#bfc0c7;font:18px "Songti SC","SimSun",serif;background:#eeeeF2}.red .captured-piece.taken{color:var(--red);border-color:#e5b8b8;background:#fff7f5}.black .captured-piece.taken{color:#33343a;border-color:#bfc0c7;background:white}.captured-piece b{position:absolute;right:-6px;bottom:-4px;background:#e65050;color:white;font:10px -apple-system,sans-serif;min-width:15px;height:15px;border-radius:8px;text-align:center;padding-top:1px;border:1px solid white}.board-footnote{text-align:center;color:#9898a1;font-size:11px;margin-top:17px}.offline{text-align:center;max-width:550px;margin:45px auto;padding:46px 25px}.offline h1{margin:25px 0 15px}.offline p{font-size:14px;color:var(--muted);margin-bottom:28px}.offline button{min-width:200px}footer{display:flex;gap:18px;align-items:center;justify-content:space-between;color:#a0a0aa;font-size:11px;margin:45px 0 20px;padding-top:18px;border-top:1px solid var(--line)}footer button{font-size:11px;padding:3px;min-height:25px}.version{color:#babac2;margin-left:5px}dialog{border:1px solid #e8e8ee;border-radius:24px;max-width:min(460px,calc(100vw - 32px));width:100%;max-height:85dvh;padding:26px;box-shadow:0 24px 100px #00000026;color:inherit}dialog::backdrop{background:#15192555}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.dialog-heading h2{font-size:22px}.dialog-close:not(.primary){background:#f0f0f4;color:#85858d;width:32px;height:32px;min-height:32px;padding:0;font-size:25px;border-radius:50%}label{font-size:14px}input:not([type=checkbox]){width:100%;border:1px solid var(--line);border-radius:12px;background:#f7f7f9;padding:14px;font-size:16px;margin-top:9px;color:inherit}.field-error{min-height:22px;color:#c84343;font-size:12px;margin:8px 0 15px}.rules-body{white-space:pre-wrap;font-size:14px;line-height:1.85;color:#51515a}.setting-caption{font-size:12px;color:var(--muted);margin:23px 0 9px}.setting-row{display:flex;align-items:center;justify-content:space-between;background:#f5f5f8;padding:15px;font-size:16px;border-bottom:1px solid #e7e7ec}.setting-row:first-of-type{border-radius:12px 12px 0 0}.setting-row:last-of-type{border:0;border-radius:0 0 12px 12px}input[role=switch]{appearance:none;position:relative;width:47px;height:28px;border-radius:18px;background:#d9d9df;cursor:pointer;margin:0}input[role=switch]::after{content:"";position:absolute;left:3px;top:3px;width:22px;height:22px;background:white;border-radius:50%;box-shadow:0 1px 3px #0002}input[role=switch]:checked{background:#34c759}input[role=switch]:checked::after{left:22px}.server-detail{background:#f5f5f8;border-radius:12px;padding:15px;overflow-wrap:anywhere}.server-detail strong{font-size:14px;font-weight:550}.server-detail p{font-size:12px;color:var(--muted);margin-top:5px}#settings-dialog>.hint{margin:18px 0 22px}.dialog-actions{display:flex;gap:10px;margin-top:25px}.dialog-actions button{flex:1}.outcome{text-align:center;padding:35px}.outcome-symbol{display:grid;place-items:center;background:#eef5ff;color:var(--blue);width:84px;height:84px;border-radius:50%;font:40px "Songti SC",serif;margin:0 auto 23px}.outcome-symbol.lost{color:#83838e;background:#f2f2f6}.outcome h2{font-size:27px}.outcome p{margin:13px 0 26px;font-size:14px;color:var(--muted)}.toast{position:fixed;bottom:max(28px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#292932;color:white;font-size:14px;padding:13px 22px;border-radius:14px;box-shadow:0 6px 30px #0002;max-width:calc(100% - 32px);width:max-content;z-index:20}.piece.pop{animation:piece-pop .23s ease-out}.piece.capture{animation:piece-capture .26s ease-out}@keyframes piece-pop{from{transform:scale(.75);opacity:.4}to{transform:scale(1);opacity:1}}@keyframes piece-capture{0%{transform:scale(1.14)}55%{transform:scale(.92)}100%{transform:scale(1)}}
@media(min-width:1100px){.board-wrap{max-width:430px}.game-layout{gap:65px}.cell{font-size:30px}}
@media(max-width:700px){main{padding-left:18px;padding-right:18px}.topbar-inner{padding:10px 14px}.connection-line{margin:16px 0 23px}.edition{display:none}h1{font-size:28px}.page-heading{margin-bottom:20px}.lobby-layout{grid-template-columns:1fr;gap:27px}.welcome{padding:23px;position:relative}.welcome h2{font-size:25px;margin:0 0 10px}.welcome h2 br{display:none}.welcome .hero-pieces{position:absolute;right:23px;top:19px;transform:scale(.7);transform-origin:top right}.welcome h2{max-width:70%}.welcome p{font-size:13px}.welcome .primary{margin:20px 0 11px}.welcome small{font-size:10px}.room-item{padding:17px}.waiting-layout{grid-template-columns:1fr;gap:16px}.waiting-card,.room-guide{padding:22px}.room-guide .mini-mark{display:none}.room-guide h2{font-size:18px}.room-guide p{font-size:13px;margin-top:9px}.room-guide .room-actions{margin-top:12px}.game-layout{display:flex;flex-direction:column;gap:20px;align-items:stretch}.game-info{position:static;padding:17px 20px;display:grid;grid-template-columns:1fr auto;column-gap:12px}.game-info .eyebrow{grid-column:1;margin:0 0 6px}.game-info .pill{grid-column:1;justify-self:start;font-size:11px;padding:3px 8px}.game-info h1{grid-column:1;font-size:22px;margin:10px 0 3px}.game-info>.subtle{grid-column:1;font-size:12px}.game-info .timer-block{grid-column:2;grid-row:1/5;margin:0;justify-content:center;text-align:right}.timer-block>span{font-size:10px}#clock{font-size:34px}.game-info>.hint{display:none}.game-info .room-actions{grid-column:1/3;margin-top:12px;padding-top:7px;justify-content:space-between}.game-info .room-actions button{min-height:30px;padding:4px 0;font-size:12px}.board-wrap{max-width:375px;gap:10px;grid-template-columns:30px minmax(0,1fr) 30px}.board{padding:8px;gap:4px;border-radius:12px}.cell{font-size:clamp(19px,6vw,27px);padding:2px}.captured{gap:9px}.captured-piece{width:27px;height:27px;font-size:17px}footer{margin-top:32px;gap:10px;font-size:10px}.board-footnote{margin-top:13px}.offline{margin:20px auto;padding:35px 20px}}
@media(max-width:850px) and (orientation:landscape) and (max-height:550px){.topbar-inner{padding:4px 20px}.brand img{width:30px;height:30px}.brand{font-size:18px}.topbar button{min-height:34px}.connection-line{margin:10px 0}.game-layout{display:grid;grid-template-columns:210px 1fr;gap:20px}.game-info{display:block;padding:16px}.game-info .timer-block{margin:13px 0;gap:3px;text-align:left}#clock{font-size:28px}.game-info h1{font-size:20px}.game-info .room-actions{gap:7px}.board-wrap{max-width:calc((100dvh - 116px)/2 + 70px);grid-template-columns:25px minmax(0,1fr) 25px;gap:8px}.board{padding:5px;gap:2px}.cell{font-size:16px;padding:1px}.piece{border-width:2px}.captured{gap:4px}.captured>small{font-size:9px}.captured-piece{width:20px;height:20px;font-size:12px}.captured-piece b{width:12px;height:12px;min-width:12px;font-size:8px}.board-footnote{display:none}footer{margin-top:15px}.waiting-layout{grid-template-columns:1fr 1fr}.lobby-layout{grid-template-columns:260px 1fr}}
@media(max-width:700px) and (orientation:portrait){.board-wrap{max-width:min(375px,calc((100svh - 390px)/2 + 80px));min-width:min(270px,100%)}body.playing footer{display:none}.game-info{padding:14px 18px}.game-info .room-actions{margin-top:9px;padding-top:5px}}
@media(max-width:850px) and (orientation:landscape) and (max-height:550px){.game-info>.hint{display:none}.game-info .room-actions{margin-top:8px;padding-top:5px}.game-info .room-actions button{min-height:30px;padding:5px;font-size:12px}.game-info .rules-link{display:none}.game-info h1{margin-top:10px}.game-info .eyebrow{margin-bottom:10px}body.playing footer{display:none}}
.cell>.piece{grid-area:1 / 1;pointer-events:none}.cell.in-motion{z-index:2}.cell.in-motion>.piece:not(.capture-ghost){position:relative;z-index:1}.capture-ghost{pointer-events:none}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}.no-motion .piece{animation:none!important}