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button{color:var(--ink);background:#ffffff6e;border:1px solid #1f251f21;border-radius:10px;padding:11px 4px;font-size:11px;font-weight:700}.action-grid button small{color:var(--muted);letter-spacing:.13em;margin-top:3px;font-size:7px;display:block}.action-grid button.danger{color:#9f4434}.notice-card,.result-card,.score-panel{background:#ffffff8c;border:1px solid #1d6d5a38;border-radius:13px;margin-top:14px;padding:15px}.notice-card strong{font-size:13px}.notice-card p{color:var(--muted);margin:6px 0 13px;font-size:11px;line-height:1.5}.button-pair{grid-template-columns:1fr 1fr;gap:7px;display:grid}.button-pair button{background:#fff;border:1px solid #1f251f24;border-radius:8px;padding:9px;font-size:11px;font-weight:700}.button-pair .solid{color:#fff;border-color:var(--jade);background:var(--jade)}.score-preview{grid-template-columns:1fr 1fr;gap:8px;display:grid}.score-preview span{background:#1f251f0d;border-radius:9px;align-items:center;gap:7px;padding:9px;font-size:13px;font-weight:700;display:flex}.score-preview .player-stone{width:17px;height:17px}.score-panel .primary-button,.result-card .primary-button{min-height:42px;margin-top:11px;font-size:12px}.text-button{width:100%;color:var(--muted);text-underline-offset:3px;background:0 0;border:0;margin-top:10px;padding:0;font-size:10px;text-decoration:underline}.result-scores{grid-template-columns:1fr 1fr;gap:8px;display:grid}.result-scores span{color:var(--muted);font-size:9px}.result-scores strong{color:var(--ink);margin-top:3px;font:24px Georgia,serif;display:block}.game-message{color:#993f30;background:#c85c3b17;border-radius:8px;margin:12px 0 0;padding:9px 11px;font-size:11px}.rule-note{border-top:1px solid #1f251f1f;gap:11px;margin-top:18px;padding-top:18px;display:flex}.rule-note>span{color:var(--red);font:28px Georgia,serif}.rule-note p{color:var(--muted);margin:0;font-size:10px;line-height:1.55}.rule-note strong{color:var(--ink);margin-bottom:2px;display:block}.board-column{place-items:center;min-width:0;display:grid}.board-stage{background:#ffffff61;border:1px solid #1f251f1f;border-radius:clamp(22px,3vw,38px);width:min(100%,100vh - 150px,850px);padding:clamp(22px,3vw,38px);position:relative;box-shadow:0 30px 80px #332f2521}.periodic-board{--grid-size:11;grid-template-columns:repeat(var(--grid-size), minmax(0, 1fr));aspect-ratio:1;touch-action:manipulation;background:#d6a65e;border-radius:15px;width:100%;padding:clamp(7px,1.2vw,13px);display:grid;overflow:hidden;box-shadow:inset 0 0 45px #64390f30,0 16px 32px #462e1224}.game-point{aspect-ratio:1;background-color:#0000;background-image:linear-gradient(90deg,#0000 calc(50% - .5px),#362b1ab0 50%,#0000 calc(50% + .5px)),linear-gradient(#0000 calc(50% - .5px),#362b1ab0 50%,#0000 calc(50% + .5px));border:0;border-radius:0;min-width:0;padding:0;position:relative}.playable-point{opacity:1}.playable-point:focus-visible{z-index:5;outline-offset:-3px;box-shadow:inset 0 0 0 5px var(--jade);outline:3px solid #fff}.playable-point.can-place:hover:after{content:"";opacity:.2;background:currentColor;border-radius:50%;position:absolute;inset:16%}.playable-point.can-mark:hover{background-color:#c85c3b24}.ghost-point{pointer-events:none;opacity:.29;background-color:#f8edd2b8}.game-stone{z-index:2;border-radius:50%;place-items:center;transition:opacity .18s,transform .18s;display:grid;position:absolute;inset:8%;box-shadow:0 3px 6px #2a1f114f}.game-stone.black{color:#fff;background:radial-gradient(circle at 34% 27%,#626963,#111411 60%)}.game-stone.white{color:#1c211d;background:radial-gradient(circle at 34% 27%,#fff,#dad6cb 64%);border:1px solid #1f251f14}.game-stone.dead{opacity:.34;transform:scale(.8)}.game-stone.dead:after{content:"×";color:#c64e37;font-size:clamp(10px,1.35vw,22px);font-style:normal;font-weight:900}.game-stone b{aspect-ratio:1;background:var(--red);border-radius:50%;width:24%;box-shadow:0 0 0 2px #ffffffa6}.last-empty{z-index:2;background:var(--red);border-radius:50%;position:absolute;inset:39%}.wrap-label{z-index:3;color:#fff;background:var(--red);letter-spacing:.08em;border-radius:999px;padding:6px 10px;font-size:8px;font-weight:800;position:absolute;box-shadow:0 5px 12px #c85c3b2e}.wrap-top{top:11px;left:50%;transform:translate(-50%)}.wrap-left{top:50%;left:-13px;transform:rotate(-90deg)}.board-footer{width:100%;color:var(--muted);letter-spacing:.05em;justify-content:center;gap:22px;margin-top:14px;font-size:9px;display:flex}@media (max-width:1050px){.game-layout{grid-template-columns:300px minmax(0,1fr);gap:28px}.board-stage{width:min(100%,100vh - 145px)}}@media (max-width:820px){.game-page{padding:0 18px 28px}.game-header{grid-template-columns:1fr auto;height:70px}.game-header .room-code{z-index:3;grid-area:2/1/auto/-1;justify-self:center;transform:translateY(-4px)}.sync-state{grid-column:2}.game-layout{grid-template-columns:1fr;padding-top:42px}.game-sidebar{display:contents}.game-sidebar>div:first-child{text-align:center}.game-sidebar h1{font-size:38px}.players-stack{order:2;grid-template-columns:1fr 1fr;margin:0}.board-column{order:1}.board-stage{width:min(100%,680px)}.action-grid,.notice-card,.score-panel,.result-card,.game-message{order:3;justify-self:center;width:min(100%,680px)}.rule-note{order:4;justify-self:center;width:min(100%,680px)}}@media (max-width:520px){.game-page{padding-inline:10px}.game-header .brand span:last-child,.room-code small{display:none}.board-stage{border-radius:22px;padding:18px}.periodic-board{border-radius:10px;padding:6px}.wrap-top{top:4px}.wrap-left{left:-20px}.board-footer{gap:10px}.players-stack{gap:6px}.player-card{gap:8px;padding:10px}.capture-count{display:none}.game-sidebar h1{font-size:32px}.room-gate{padding:20px}.room-gate>.brand{top:20px;left:20px}.gate-card{padding:26px 20px}}.topology-diagram{aspect-ratio:1;width:100%;display:block}.topology-choice-grid{grid-template-columns:1fr 1fr;gap:7px;display:grid}.topology-choice-grid button{min-width:0;color:var(--muted);text-align:left;background:#ffffff6b;border:1px solid #1f251f1f;border-radius:11px;grid-template-columns:54px minmax(0,1fr);align-items:center;gap:7px;padding:5px 8px 5px 4px;display:grid}.topology-choice-grid button.active{border-color:var(--jade);color:var(--jade);box-shadow:inset 0 0 0 1px var(--jade);background:#1d6d5a14}.topology-choice-grid button .topology-diagram{width:54px}.topology-choice-grid button span,.topology-choice-grid button strong,.topology-choice-grid button small{min-width:0;display:block}.topology-choice-grid button strong{font-size:10px;line-height:1.25}.topology-choice-grid button small{color:var(--muted);margin-top:3px;font-size:8px}.topology-choice-description{min-height:31px;color:var(--muted);margin:7px 2px 0;font-size:9px;line-height:1.5}.topology-showcase{grid-template-columns:minmax(0,1fr) .78fr;align-items:center;gap:clamp(18px,4vw,42px);min-height:480px;padding:clamp(28px,4vw,48px);display:grid;transform:rotate(1.5deg)}.hero-topology-diagram{filter:drop-shadow(0 18px 23px #47301429);width:100%}.showcase-kicker{color:var(--jade);letter-spacing:.14em;font-size:9px;font-weight:800;position:absolute;top:22px;left:28px}.showcase-copy strong{font-family:Georgia,Songti SC,serif;font-size:clamp(24px,3vw,38px);line-height:1.08;display:block}.showcase-copy p{color:var(--muted);margin:13px 0 0;font-size:12px;line-height:1.75}.gate-topology{background:#1f251f0b;border-radius:13px;grid-template-columns:78px 1fr;align-items:center;gap:14px;margin:-4px 0 18px;padding:10px;display:grid}.gate-topology strong,.gate-topology small{display:block}.gate-topology strong{font-size:13px}.gate-topology small{color:var(--muted);margin-top:4px;font-size:9px;line-height:1.5}.board-column{width:100%}.go-board{--grid-size:9;grid-template-columns:repeat(var(--grid-size), minmax(0, 1fr));aspect-ratio:1;touch-action:manipulation;background:#d6a65e;width:100%;height:100%;display:grid;overflow:hidden;box-shadow:inset 0 0 45px #64390f30,0 12px 26px #462e121f}.compact-board-stage{width:min(100%,100vh - 190px,850px);padding:clamp(24px,3.2vw,42px)}.collar-board{--collar-size:13;grid-template-columns:repeat(var(--collar-size), minmax(0, 1fr));grid-template-rows:repeat(var(--collar-size), minmax(0, 1fr));aspect-ratio:1;background:#e5bd7873;border-radius:16px;width:100%;display:grid;overflow:hidden;box-shadow:inset 0 0 45px #64390f24,0 16px 32px #462e121f}.collar-main{z-index:2;min-width:0;min-height:0;box-shadow:0 0 0 2px #c85c3b85,0 9px 22px #452c102b}.ghost-strip{z-index:1;background:#ecc686ad;min-width:0;min-height:0;display:grid;overflow:hidden}.ghost-north{grid-area:1/3/3/-3}.ghost-east{grid-area:3/-3/-3/-1}.ghost-south{grid-area:-3/3/-1/-3}.ghost-west{grid-area:3/1/-3/3}.collar-corner{z-index:1;color:#c85c3ba6;background:repeating-linear-gradient(135deg,#ffffff4d 0 5px,#1d6d5a0d 5px 10px);place-items:center;font:clamp(12px,1.5vw,24px) Georgia,serif;display:grid}.corner-north-west{grid-area:1/1/3/3}.corner-north-east{grid-area:1/-3/3/-1}.corner-south-west{grid-area:-3/1/-1/3}.corner-south-east{grid-area:-3/-3/-1/-1}.ghost-point{opacity:.36;background-color:#f8edd2a8}.wrap-label{white-space:nowrap}.wrap-north{top:10px;left:50%;transform:translate(-50%)}.wrap-south{bottom:10px;left:50%;transform:translate(-50%)}.wrap-west{top:50%;left:-20px;transform:translateY(-50%)rotate(-90deg)}.wrap-east{top:50%;right:-20px;transform:translateY(-50%)rotate(90deg)}.board-view-toggle{z-index:5;background:#1f251f12;border-radius:12px;grid-template-columns:1fr 1fr;gap:4px;width:min(100%,430px);margin:0 auto 10px;padding:4px;display:grid}.board-view-toggle button{color:var(--muted);background:0 0;border:0;border-radius:9px;padding:8px 12px;font-size:10px;font-weight:800}.board-view-toggle button.active{color:var(--ink);background:#ffffffd9;box-shadow:0 3px 9px #1f251f17}.topology-canvas-stage{aspect-ratio:1;background:#ffffff61;border:1px solid #1f251f1f;border-radius:clamp(22px,3vw,38px);width:min(100%,100vh - 190px,850px);padding:clamp(12px,1.8vw,20px);position:relative;box-shadow:0 30px 80px #332f2521}.topology-viewport{touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none;background:radial-gradient(circle,#1d6d5a1f,#1f251f0e);border-radius:18px;width:100%;height:100%;position:relative;overflow:hidden}.topology-viewport:active{cursor:grabbing}.topology-cross{transform-origin:0 0;will-change:transform;position:absolute;top:0;left:0}.cross-board{background:#ffffff52;padding:9px;position:absolute}.cross-board .go-board{border-radius:8px}.main-cross-board{z-index:2;background:#c85c3b26;box-shadow:0 0 0 5px #c85c3bcc}.auxiliary-cross-board{z-index:1;opacity:.62}.cross-board-label{z-index:5;color:#fff;white-space:nowrap;pointer-events:none;background:#1f251fd6;border-radius:999px;padding:7px 14px;font-size:16px;font-weight:800;position:absolute;top:18px;left:50%;transform:translate(-50%)}.canvas-controls{z-index:8;background:#ffffffdb;border-radius:11px;gap:5px;padding:5px;display:flex;position:absolute;top:30px;right:30px;box-shadow:0 7px 20px #1f251f26}.canvas-controls button{min-width:32px;height:30px;color:var(--ink);background:#fff;border:1px solid #1f251f1c;border-radius:7px;padding:0 8px;font-size:10px;font-weight:800}@media (max-width:900px){.topology-showcase{min-height:420px}}@media (max-width:820px){.compact-board-stage,.topology-canvas-stage{width:min(100%,680px)}.compact-board-stage{padding:34px}}@media (max-width:560px){.topology-choice-grid{grid-template-columns:1fr}.topology-choice-grid button{grid-template-columns:48px 1fr}.topology-choice-grid button .topology-diagram{width:48px}.topology-showcase{text-align:center;grid-template-columns:1fr;min-height:0}.hero-topology-diagram{width:min(100%,280px);margin:18px auto 0}.showcase-copy p{max-width:280px;margin-inline:auto}}@media (max-width:520px){.compact-board-stage{padding:29px}.wrap-label{padding:4px 7px;font-size:6px}.wrap-north{top:7px}.wrap-south{bottom:7px}.wrap-west{left:-28px}.wrap-east{right:-28px}.topology-canvas-stage{border-radius:20px;padding:8px}.topology-viewport{border-radius:13px}.canvas-controls{top:16px;right:16px}.canvas-controls button{min-width:29px;height:28px;padding-inline:6px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}