.gomoku-game{--ink:#223d32;--paper:#f6f7f2;--muted:#667362;color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}.gomoku-game *{box-sizing:border-box}.gomoku-shell{background:var(--paper);border:1px solid #dfe5d9;border-radius:20px;max-width:640px;margin:24px auto;padding:clamp(14px,4vw,28px);box-shadow:0 16px 42px #223d3210}.gomoku-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.gomoku-kicker{color:var(--muted);letter-spacing:.16em;margin:0 0 5px;font-size:11px;font-weight:700}.gomoku-head h1{margin:0;font-size:clamp(25px,7vw,36px);line-height:1.1}.gomoku-sub{color:var(--muted);margin:7px 0 0;font-size:14px}.gomoku-actions{gap:8px;display:flex}.gomoku-game button,.gomoku-game select{min-height:44px;color:var(--ink);font:inherit;cursor:pointer;background:#fff;border:1px solid #cbd5c8;border-radius:10px;padding:8px 12px;font-weight:650}.gomoku-game button:focus-visible,.gomoku-game select:focus-visible{outline-offset:2px;outline:3px solid #719c78}.gomoku-game button:disabled{cursor:default;opacity:.58}.gomoku-toolbar{justify-content:space-between;align-items:center;gap:12px;margin:22px 0 12px;display:flex}.gomoku-toolbar label,.gomoku-turn{font-size:14px;font-weight:700}.gomoku-turn{color:var(--ink);text-align:right}.gomoku-board{aspect-ratio:1;touch-action:manipulation;background:#d9cba9;border:1px solid #bcad8c;border-radius:7px;grid-template-columns:repeat(15,minmax(0,1fr));gap:1px;padding:3px;display:grid}.gomoku-cell{place-items:center;display:grid;background:0 0!important;border:0!important;border-radius:2px!important;min-width:0!important;min-height:0!important;padding:0!important;position:relative!important}.gomoku-cell:before{content:"";background:#a79670;width:100%;height:1px;position:absolute;top:50%;left:0}.gomoku-cell:nth-child(15n+1):after{content:"";background:#a79670;width:1px;height:100%;position:absolute;top:0;left:50%}.gomoku-cell.black:after,.gomoku-cell.white:after{content:"";z-index:1;border-radius:50%;width:74%;height:74%;position:absolute;box-shadow:0 1px 3px #0005}.gomoku-cell.black:after{background:radial-gradient(circle at 35% 30%,#53645c,#15251f 70%)}.gomoku-cell.white:after{background:radial-gradient(circle at 35% 30%,#fff,#e3e4dc 78%);border:1px solid #aeb5aa}.gomoku-cell.last:before{z-index:2}.gomoku-cell.last{outline-offset:-2px;outline:2px solid #d27e47}.gomoku-cell.winning{background:#91aa78!important}.gomoku-cell.selected:not(.black):not(.white):after{content:"";border:2px dashed #466c51;border-radius:50%;width:50%;height:50%}.gomoku-foot{justify-content:space-between;align-items:center;gap:12px;margin-top:12px;display:flex}.gomoku-help{color:var(--muted);font-size:12px;line-height:1.5}.gomoku-game .gomoku-place,.gomoku-game .gomoku-primary{background:var(--ink);border-color:var(--ink);color:#fff}.gomoku-dialog{max-width:min(420px,100vw - 24px);color:var(--ink);border:0;border-radius:16px;padding:24px;box-shadow:0 18px 70px #0004}.gomoku-dialog::backdrop{background:#15251f66}.gomoku-dialog h2{margin:0 0 8px}.gomoku-dialog p{color:var(--muted)}.gomoku-dialog form>div{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}@media (width<=420px){.gomoku-head{align-items:flex-start}.gomoku-actions{flex-direction:column}.gomoku-actions button{padding:7px 9px}.gomoku-help{max-width:68%}.gomoku-shell{border-radius:14px;margin:8px auto}}.gomoku-toolbar{flex-wrap:wrap}.gomoku-toolbar select{max-width:100%}.gomoku-cell{background:linear-gradient(#a79670,#a79670) 50%/1px 100% no-repeat,linear-gradient(#a79670,#a79670) 50%/100% 1px no-repeat!important}.gomoku-cell:before{display:none}.gomoku-cell:nth-child(15n+1):not(.black):not(.white):not(.selected):after{content:none}