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var(--board-grid);background:rgba(255,245,219,.02);font-weight:700;color:var(--board-ink);line-height:1;text-align:center;cursor:pointer;overflow:hidden;transition:box-shadow .2s ease,background .2s ease;box-shadow:inset 0 1px 0 rgba(255,247,224,.04);width:var(--cell-size);height:var(--cell-size);font-size:clamp(14px,calc(var(--cell-size) * .52),22px);display:inline-flex;align-items:center;justify-content:center}.rhythm-shogi .captured,.rhythm-shogi .mobile-captured{position:relative;width:calc(var(--cell-size) - 12px);height:calc(var(--cell-size) - 12px);font-size:clamp(12px,calc(var(--cell-size) * .44),18px);display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,rgba(238,221,188,.98),rgba(213,183,132,.96));border:1px solid rgba(91,60,29,.4);box-shadow:inset 0 1px 0 rgba(255,248,230,.16)}.rhythm-shogi .piece-wrap{pointer-events:none;z-index:2}.rhythm-shogi .piece-body,.rhythm-shogi .piece-wrap{position:relative;display:inline-flex;align-items:center;justify-content:center;width:100%;height:100%}.rhythm-shogi .piece-wrap[data-has-piece=true] .piece-body:before{content:"";position:absolute;inset:var(--piece-face-inset-top) var(--piece-face-inset-x) var(--piece-face-inset-bottom);background:linear-gradient(180deg,var(--piece-face-top),var(--piece-face-bottom)),linear-gradient(90deg,rgba(255,255,255,.05),transparent 42%,rgba(84,56,27,.04));box-shadow:inset 0 0 0 1px var(--piece-rim),inset 0 1px 0 rgba(255,251,239,.3),0 3px 5px var(--piece-shadow);clip-path:polygon(50% 4%,92% 18%,82% 96%,18% 96%,8% 18%)}.rhythm-shogi .captured .piece-wrap[data-has-piece=true] .piece-body:before{inset:var(--captured-face-inset-top) var(--captured-face-inset-x) var(--captured-face-inset-bottom)}.rhythm-shogi .piece-text{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:1em;line-height:1;text-shadow:0 1px 2px rgba(44,28,14,.14)}.rhythm-shogi .piece-wrap[data-promoted=true] .piece-text{color:#b91c1c;text-shadow:0 2px 4px rgba(127,29,29,.35)}.rhythm-shogi .captured.white .piece-body,.rhythm-shogi .mobile-captured.white .piece-body,.rhythm-shogi .mobile-square.white .piece-body,.rhythm-shogi .square.white .piece-body{transform:rotate(180deg)}.rhythm-shogi .rythm-piece{will-change:transform;transform-origin:center center;transform:translateX(calc(var(--rh-shake) * var(--piece-shake-px, 3px))) translateY(calc(var(--rh-jump) * var(--piece-jump-px, 4px))) rotate(calc(var(--rh-tilt) * var(--piece-tilt-deg, 6deg)));transition:none}.rhythm-shogi .rythm-piece[data-has-piece=true] .piece-body{filter:drop-shadow(0 3px 4px rgba(0,0,0,.14))}.rhythm-shogi .attack{box-shadow:inset 0 0 0 2px var(--board-accent),0 0 0 4px var(--board-accent-soft);background:rgba(238,194,141,.34)}.rhythm-shogi .final{box-shadow:inset 0 0 0 2px #f0b24f,0 6px 16px rgba(240,178,79,.28)}.rhythm-shogi .click{box-shadow:inset 0 0 0 2px #ef5b37,0 0 0 4px rgba(239,91,55,.2)}.rhythm-shogi .number{width:calc(var(--cell-size) - 18px);height:calc(var(--cell-size) - 18px);margin-top:4px;border-radius:8px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.08);font-size:clamp(11px,1.8vw,15px);font-weight:600;color:var(--board-panel-muted)}.rhythm-shogi .button,.rhythm-shogi .mobile-button{display:flex;justify-content:center}.rhythm-shogi .action-button{border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.08);color:var(--board-panel-ink);box-shadow:0 10px 18px rgba(19,22,29,.08);font-weight:700;letter-spacing:.06em}.rhythm-shogi .action-button.resign{background:linear-gradient(180deg,#f97316,#ea580c);color:#fff;border-color:rgba(180,83,9,.5)}.rhythm-shogi .kifu-button{border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.08);color:var(--board-panel-muted)}.rhythm-shogi button:focus{outline:none}@media (max-width:959px){.rhythm-shogi{--cell-size:clamp(22px,calc((var(--board-frame-width) - 28px) / 9),54px)}.rhythm-shogi .game-info{grid-template-columns:1fr;justify-items:stretch}.rhythm-shogi .game,.rhythm-shogi .game .game{gap:12px;align-items:stretch}.rhythm-shogi .game .game{flex-direction:column}.rhythm-shogi .game-info-black,.rhythm-shogi .game-info-white{flex-direction:row;justify-content:center;width:100%}.rhythm-shogi .game-board,.rhythm-shogi .mobile-game-board{padding:0}.rhythm-shogi .game-board{display:flex;justify-content:center;width:100%;box-shadow:none}.rhythm-shogi .rhythm-legend,.rhythm-shogi .rhythm-move-bar{width:100%;max-width:100%}.rhythm-shogi .move-count{min-width:0}}@media (prefers-reduced-motion:reduce){.rhythm-shogi .captured,.rhythm-shogi .legend-beat span,.rhythm-shogi .square{transition:none}}