@charset "UTF-8";
:root{color-scheme:light;--cream:#fff8ed;--paper:#fffefa;--ink:#343333;--muted:#70675d;--mint:#b8ddc8;--green:#547660;--peach:#f6c2b3;--line:#e9ddcc;--board:#f4ddb7;--grid:#b58d60;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}button:disabled{cursor:not-allowed}button, a, input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--green);outline-offset:4px}button{border:0}h1,h2,h3,p{margin:0}img{display:block;max-width:100%}[hidden]{display:none!important}a{color:inherit}.icon-definitions{position:absolute;width:0;height:0;overflow:hidden}.icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}.icon.small{width:20px;height:20px}.app-shell{max-width:1440px;padding:0 64px;margin:auto}.site-header{height:108px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:68px}.brand{display:flex;align-items:center;gap:16px;font-size:24px;font-weight:750;text-decoration:none;white-space:nowrap}.brand-characters{display:flex;align-items:center;width:80px;height:58px}.brand-characters img{width:50px;height:50px}.brand-characters img+img{margin-left:-18px}.brand-note{font-size:14px;color:var(--muted)}.header-actions{margin-left:auto;display:flex;gap:12px}.icon-button{width:44px;height:44px;display:grid;place-items:center;background:var(--paper);border:1px solid var(--line);border-radius:16px;transition:background .15s,transform .15s}.icon-button:hover{background:#f2eddf;transform:translateY(-1px)}.intro{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:32px;align-items:start;margin:28px 0 16px;min-height:82px}.intro h1{font-size:40px;line-height:1.4;letter-spacing:-1.1px;font-weight:750}.intro p{margin-top:2px;color:var(--muted);font-size:16px;line-height:24px}.mode-switch{display:flex;gap:4px;background:#eee8dd;padding:5px;border-radius:20px;margin-top:6px;height:56px}.mode-switch button{flex:1;border-radius:16px;background:transparent;color:var(--muted);font-size:16px;transition:background .18s,box-shadow .18s}.mode-switch button[aria-pressed=true]{background:var(--paper);color:var(--ink);font-weight:700;box-shadow:0 2px 4px #34333309}.mode-switch button:hover{color:var(--ink)}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:32px;align-items:start}.board-card{position:relative;min-width:0;border:1px solid #e4d4bc;background:var(--paper);border-radius:32px;display:grid;grid-template-columns:1fr minmax(0,656px) 1fr;align-items:center;padding:24px 0;aspect-ratio:880/704}.board-surface{position:relative;width:100%;aspect-ratio:1;background:var(--board);border:2px solid #dbb684;border-radius:24px;box-shadow:0 6px 0 #3433331f;grid-column:2;isolation:isolate}#board-grid,#board,#board-coordinates{position:absolute;inset:0;width:100%;height:100%}#board-grid{overflow:visible;pointer-events:none}#board-coordinates{pointer-events:none}#board-grid line{stroke:var(--grid);stroke-width:1;opacity:.9}#board-grid circle{fill:var(--grid)}.coordinate{position:absolute;display:block;font-size:11px;color:var(--muted);line-height:1;transform:translate(-50%,-50%);font-variant-numeric:tabular-nums}.intersection{position:absolute;width:6.40244%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;background:transparent;padding:0;display:grid;place-items:center;outline-offset:-2px;z-index:1}.intersection[aria-disabled="true"]{cursor:default}.intersection[aria-disabled="false"]:focus-visible{outline:2px dashed var(--green);background:#fffefa38}.intersection[aria-disabled="false"]:hover::before{content:"";width:80.9524%;height:80.9524%;border-radius:50%;background:#3433332b;border:1.5px dashed #34333377}.board-surface[data-turn="2"] .intersection[aria-disabled="false"]:hover::before{background:#fffefa88;border-color:#8c7960}.intersection:has(.stone)::before{display:none!important}.stone{position:absolute;width:80.9524%;height:80.9524%;border-radius:50%;box-shadow:0 2px 2px #34333333;animation:stone-arrive .18s ease-out;pointer-events:none}.stone.black{background:#343333;border:1px solid #262626}.stone.white{background:#fffcf4;border:1px solid #9f947f}.stone.black::before{content:"";position:absolute;left:23%;top:12%;width:36%;height:16%;background:#ffffff1c;border-radius:50%}.stone.latest::after{content:"";position:absolute;left:39%;top:39%;width:22%;height:22%;border:1px solid #b27461;border-radius:50%;background:var(--peach)}.stone.winning{outline:2px solid var(--green);outline-offset:3px}.win-line{stroke:var(--mint)!important;stroke-width:16!important;stroke-linecap:round;opacity:.8!important}.board-poem{justify-self:center;text-align:center;color:var(--grid);font-size:16px;font-weight:600;line-height:27px;letter-spacing:1px}.board-poem i{display:block;width:5px;height:5px;background:var(--peach);border-radius:50%;margin:0 auto 20px}.poem-right{grid-column:3}.poem-right i{background:var(--mint);margin:20px auto 0}.game-rail{min-width:0;display:flex;flex-direction:column;gap:14px}.player-card{position:relative;min-width:0;min-height:124px;border:1px solid #e4d4bc;border-radius:26px;background:var(--paper);display:flex;align-items:center;gap:20px;padding:20px 22px;transition:border-color .2s,box-shadow .2s}.player-card.current{border-color:#89b89c;box-shadow:inset 0 0 0 1px #89b89c}.avatar{width:76px;height:76px;flex-shrink:0}.player-info{min-width:0}.player-info h2{font-size:20px;line-height:30px;font-weight:700;white-space:nowrap}.player-info p{font-size:14px;line-height:24px;color:var(--muted);white-space:nowrap}.elapsed-label{margin-left:12px}.player-info time{font-variant-numeric:tabular-nums}.turn-badge{position:absolute;right:20px;top:22px;background:var(--mint);border-radius:20px;font-size:12px;font-weight:600;line-height:30px;min-width:86px;text-align:center;padding:0 12px}.player-card.current .player-info h2{padding-right:82px}.status-card{margin-top:6px;padding:24px;min-height:160px;background:#f7efe2;border-radius:26px;display:flex;flex-direction:column;justify-content:center}.status-card.playing{background:#e9f4e9}.status-card h2{font-size:24px;line-height:1.6;font-weight:700}.status-card p{font-size:14px;line-height:24px;margin-top:5px;color:var(--muted)}.status-card .move-detail{color:var(--green);font-size:13px;margin-top:4px}.turn-dot{width:22px;height:22px;display:inline-block;border-radius:50%;background:var(--ink);vertical-align:-2px;margin-right:12px}.turn-dot.white{background:#fffcf4;border:1px solid #b6a991}.game-actions{display:flex;flex-direction:column;gap:12px;margin-top:10px}.button{min-height:52px;padding:12px 18px;display:flex;gap:10px;align-items:center;justify-content:center;border:1px solid #e4d4bc;border-radius:18px;background:var(--paper);box-shadow:0 4px 0 #3433330c;font-weight:700;line-height:24px;transition:background .15s,transform .15s,box-shadow .15s}.button:hover:not(:disabled){background:#f6f0e5;transform:translateY(-1px);box-shadow:0 5px 0 #34333312}.button:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 #34333312}.button.primary{background:var(--mint);border-color:#89b89c}.button.primary:hover:not(:disabled){background:#acd2bc}.button:disabled{background:#eae5dc;color:#969086;box-shadow:none;border-color:#e4dccf}.button.quiet{box-shadow:none;border-color:transparent;background:var(--paper)}.button.quiet:hover{background:#f9e9e2}.action-pair{display:flex;gap:12px}.action-pair .button{flex:1}.rail-note{font-size:14px;line-height:24px;color:var(--muted);margin:10px 12px 0}.game-footer{display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:13px;line-height:24px;padding:18px 0 24px}.game-footer span{padding:0 10px}.result-panel{position:absolute;z-index:4;top:48px;left:19.09%;width:61.82%;max-width:544px;padding:24px;border:1.5px solid #e2c4ab;border-radius:28px;background:var(--paper);box-shadow:0 8px 24px #34333321;animation:result-arrive .28s ease-out}.result-top{display:flex;align-items:center;gap:20px;min-height:122px}.result-art{position:relative;width:126px;flex:none}.result-art img{width:112px;height:112px;transform:rotate(-5deg)}.lucky-star{position:absolute;color:var(--peach);-webkit-text-stroke:1px var(--ink)}.star-one{font-size:38px;right:-1px;top:-7px;transform:rotate(10deg)}.star-two{font-size:20px;left:0;top:0;color:var(--mint)}.result-eyebrow{font-size:13px;color:var(--green);font-weight:700}.result-top h2{font-size:26px;line-height:1.5;margin:6px 0}.result-top p{font-size:16px;color:var(--muted);line-height:24px}.result-actions{display:flex;gap:12px;margin-top:8px}.result-actions .button{flex:1}.dialog{width:min(460px,calc(100% - 32px));padding:30px;border:1px solid #e2c4ab;background:var(--paper);color:var(--ink);border-radius:28px;box-shadow:0 20px 80px #34333326}.dialog::backdrop{background:#3433334d;backdrop-filter:blur(3px)}.dialog h2{font-size:26px;line-height:1.5;margin:8px 0 12px}.dialog p{color:var(--muted);font-size:15px;line-height:1.8}.dialog-kicker{font-size:13px;color:var(--green);font-weight:650}.dialog-actions{display:flex;gap:12px;margin-top:24px}.dialog-actions .button{flex:1}.dialog-close{position:absolute;right:18px;top:18px;width:36px;height:36px;border:0;background:transparent}.settings-dialog{max-height:calc(100dvh - 40px)}fieldset{padding:0;border:0;margin:24px 0 0}legend{font-weight:700;font-size:15px;margin-bottom:12px}.setting-choice{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:16px;cursor:pointer;margin:8px 0}.setting-choice:has(input:checked){background:#e9f4e9;border-color:#89b89c}.setting-choice strong{font-size:15px}.setting-choice small{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:3px}input{accent-color:var(--green);width:18px;height:18px;flex:none}.sound-setting{display:flex;align-items:center;justify-content:space-between;margin:20px 0;font-size:15px;font-weight:600}.rules{border-top:1px solid var(--line);padding-top:18px}.rules h3{font-size:15px;margin-bottom:8px}.rules p{font-size:13px;margin:8px 0}.settings-footnote{font-size:12px!important;margin-top:16px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 22px;border:1px solid var(--line);border-radius:16px;box-shadow:0 4px 20px #34333315;background:var(--paper);z-index:10;font-size:14px;max-width:90%;text-align:center}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus{position:absolute;top:8px;left:8px;z-index:20;background:var(--paper);padding:12px}.thinking-dots{animation:breathe 1s ease-in-out infinite}@keyframes stone-arrive{from{transform:scale(.7);opacity:.5}to{transform:scale(1);opacity:1}}@keyframes result-arrive{from{transform:translateY(8px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes breathe{50%{opacity:.3}}
@media(min-width:1101px){.board-card{grid-template-columns:12.7273% minmax(0,74.5454%) 12.7273%}}
@media(max-width:1300px) and (min-width:901px){.app-shell{padding:0 36px}.intro,.game-layout{grid-template-columns:minmax(0,1fr) 340px;gap:24px}.site-header{gap:30px}.board-card{padding:24px 18px;grid-template-columns:1fr;aspect-ratio:auto;min-height:0}.board-surface{grid-column:1}.board-poem{display:none}.player-card{padding:16px;gap:10px}.avatar{width:62px;height:62px}.player-info h2{font-size:18px}.player-info p{font-size:12px}.turn-badge{right:12px;min-width:70px;padding:0 8px;font-size:11px}.status-card h2{font-size:22px}.result-panel{width:calc(100% - 40px);left:20px;top:38px;padding:18px}.result-art{width:84px}.result-art img{width:80px;height:80px}.result-top{gap:12px;min-height:90px}.result-top h2{font-size:21px}.result-top p{font-size:13px}.result-actions .button{font-size:14px;padding:10px}.elapsed-label{margin-left:8px}}
@media(max-width:900px){.app-shell{padding:0 24px}.site-header{height:88px;gap:24px}.brand-note{font-size:12px}.brand{font-size:22px}.intro{grid-template-columns:1fr;gap:14px;margin:24px 0 18px}.intro h1{font-size:34px}.intro p{font-size:14px}.mode-switch{width:100%;max-width:100%;margin:0;height:52px}.game-layout{grid-template-columns:1fr;gap:24px}.board-card{padding:20px;grid-template-columns:1fr;aspect-ratio:auto}.board-surface{grid-column:1;width:min(100%,656px);justify-self:center}.board-poem{display:none}.game-rail{display:grid;grid-template-columns:1fr 1fr;gap:14px}.player-card{min-height:108px;padding:16px;gap:12px}.avatar{width:62px;height:62px}.player-info h2{font-size:18px}.player-info p{font-size:12px}.player-card.current .player-info h2{padding:0}.turn-badge{right:12px;top:-10px;min-width:70px;font-size:11px;line-height:24px}.status-card,.game-actions,.rail-note{grid-column:1/-1}.status-card{margin:4px 0 0;min-height:136px;padding:20px 24px}.status-card h2{font-size:22px}.status-card h2 br{display:none}.game-actions{margin-top:0}.rail-note{margin:0;text-align:center}.result-panel{left:50%;transform:translateX(-50%);top:34px;width:80%;max-width:544px;animation:none}.result-top h2{font-size:24px}.game-footer{font-size:12px;padding:20px 0;flex-wrap:wrap}.elapsed-label{margin-left:5px}}
@media(max-width:540px){.app-shell{padding:0 16px}.site-header{height:80px;gap:8px}.brand{font-size:18px;gap:8px}.brand-characters{width:57px;height:44px}.brand-characters img{width:38px;height:38px}.brand-characters img+img{margin-left:-17px}.brand-note{display:none}.header-actions{gap:8px}.icon-button{width:40px;height:40px;border-radius:14px}.intro{margin-top:22px;gap:16px}.intro h1{font-size:30px;letter-spacing:-.7px}.intro p{font-size:13px}.mode-switch{height:48px;border-radius:17px}.mode-switch button{font-size:14px;border-radius:13px}.board-card{border-radius:24px;padding:10px}.board-surface{border-radius:15px;box-shadow:0 4px 0 #3433331a}.coordinate{font-size:8px}.intersection:focus-visible{outline-width:1px!important}.stone.winning{outline-width:1.5px;outline-offset:1.5px}.game-layout{gap:22px}.game-rail{gap:10px}.player-card{padding:13px 10px;gap:5px;min-height:94px;border-radius:20px}.avatar{width:43px;height:43px}.player-info h2{font-size:14px;line-height:20px;white-space:normal}.player-info p{font-size:10px;line-height:18px;white-space:normal}.elapsed-label{display:none}.player-info time{display:block;font-size:12px}.turn-badge{right:9px;top:-10px;line-height:22px;font-size:10px;padding:0 8px;min-width:62px}.status-card{min-height:124px;border-radius:22px;padding:18px 20px}.status-card h2{font-size:20px}.status-card p{font-size:13px}.button{min-height:48px;font-size:14px;border-radius:16px}.rail-note{font-size:12px}.result-panel{width:calc(100% - 28px);top:24px;padding:16px;border-radius:22px}.result-top{min-height:76px;gap:10px}.result-art{width:64px}.result-art img{width:64px;height:64px}.star-one{font-size:24px;top:-8px;right:-2px}.star-two{font-size:14px;left:-4px}.result-eyebrow{font-size:10px}.result-top h2{font-size:18px;margin:4px 0}.result-top p{font-size:11px;line-height:18px}.result-actions{gap:8px;margin-top:12px}.result-actions .button{min-height:42px;padding:8px;font-size:13px}.game-footer{font-size:10px;gap:2px;justify-content:center;text-align:center}.game-footer p{width:100%}.game-footer span{padding:0 7px}.dialog{padding:24px}.dialog h2{font-size:23px}.dialog-actions{gap:10px}.toast{font-size:12px}.elapsed-label{margin-left:0}}
@media(max-width:540px){.player-role{display:block;font-size:10px;line-height:16px;color:var(--muted);font-weight:400}.name-divider{display:none}.mascot-name{white-space:nowrap}.result-panel{position:static;grid-column:1;transform:none;width:100%;margin-top:18px}.result-top{min-width:0}.result-top>div:last-child{min-width:0}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}