:root{--bg:#ffffff;--bg-soft:#f6f7f9;--panel:#ffffff;--panel-2:#f6f7f9;--panel-border:#e5e7eb;--text:#111827;--muted:#6b7280;--user:#059669;--ai:#db2777;--accent:#4f46e5;--gold:#d97706;--win:#059669;--lose:#dc2626;--tie:#d97706;--shadow:0 1px 3px rgba(17,24,39,0.06),0 4px 16px rgba(17,24,39,0.05)}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{background:radial-gradient(1100px 500px at 15% -10%,rgba(79,70,229,.05),transparent 60%),radial-gradient(900px 600px at 90% 0,rgba(219,39,119,.04),transparent 55%),var(--bg);color:var(--text);font-family:Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;overflow-x:hidden}.page,body{min-height:100vh}.page{max-width:1680px;margin:0 auto;padding:14px 20px 24px;display:flex;flex-direction:column;gap:14px}.screen-grid{flex:1 1;display:grid;grid-template-columns:330px minmax(440px,1.25fr) 340px;grid-gap:16px;gap:16px;align-items:stretch;height:calc(100vh - 90px);min-height:640px}.col-left,.col-right{gap:14px;overflow:hidden}.col-center{display:flex;flex-direction:column;justify-content:center;gap:14px;min-width:0;min-height:0}.header{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:8px}.header h1{font-size:22px;font-weight:700;letter-spacing:.5px}.header h1 span{background:linear-gradient(90deg,var(--user),var(--accent),var(--ai));-webkit-background-clip:text;background-clip:text;color:transparent}.status{font-size:12px;color:var(--muted);display:flex;gap:14px;align-items:center}.status .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);display:inline-block;margin-right:6px;animation:pulse 1.2s infinite}.status .dot.ok{background:var(--user);animation:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.25}}.lights-row{display:flex;gap:12px;justify-content:center;align-items:center;padding:14px;background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;box-shadow:var(--shadow)}.light{width:15px;height:15px;border-radius:50%;background:#e5e7eb;border:1px solid rgba(17,24,39,.08);flex-shrink:0}.light.user_win{background:var(--win);border-color:rgba(5,150,105,.4);box-shadow:0 0 10px rgba(5,150,105,.55)}.light.ai_win{background:var(--lose);border-color:rgba(220,38,38,.4);box-shadow:0 0 10px rgba(220,38,38,.55)}.light.draw{background:var(--tie);border-color:rgba(217,119,6,.4);box-shadow:0 0 10px rgba(217,119,6,.55)}.light.on{animation:lightOn .35s ease}@keyframes lightOn{0%{transform:scale(.5);opacity:.3}60%{transform:scale(1.35)}to{transform:scale(1);opacity:1}}.arena{position:relative;display:grid;grid-template-columns:1fr auto 1fr;grid-gap:18px;gap:18px;align-items:center;padding:30px 24px;background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}.arena:before{content:"";position:absolute;inset:0;background:radial-gradient(400px 200px at 18% 50%,rgba(5,150,105,.05),transparent),radial-gradient(400px 200px at 82% 50%,rgba(219,39,119,.05),transparent);pointer-events:none}.side{display:flex;flex-direction:column;align-items:center;gap:10px;z-index:1}.side .label{font-size:13px;color:var(--muted);letter-spacing:2px}.side.user .label{color:var(--user)}.side.ai .label{color:var(--ai)}.card{width:150px;height:150px;border-radius:20px;border:1px solid var(--panel-border);background:var(--panel-2);display:flex;align-items:center;justify-content:center;font-size:72px;position:relative;transition:transform .15s ease,box-shadow .2s ease}.card .hint{font-size:13px;color:var(--muted)}.side.user .card.pressed{transform:scale(1.06);border-color:var(--user);box-shadow:0 0 24px rgba(5,150,105,.18)}.side.ai .card.masked{background:repeating-linear-gradient(-45deg,rgba(219,39,119,.05) 0 12px,rgba(79,70,229,.05) 12px 24px),var(--panel-2)}.side.ai .card.masked .face{filter:blur(14px);opacity:.3;-webkit-user-select:none;-moz-user-select:none;user-select:none}.side.ai .card.masked .mask-q{position:absolute;font-size:44px;color:var(--ai);opacity:.9;animation:float 1.6s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(-3px)}50%{transform:translateY(3px)}}.card.reveal-pop{animation:pop .28s ease}@keyframes pop{0%{transform:scale(.85)}60%{transform:scale(1.12)}to{transform:scale(1)}}.vs{font-size:20px;font-weight:800;color:#9ca3af;z-index:1}.result-banner{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:30px;font-weight:900;letter-spacing:4px;padding:10px 34px;border-radius:14px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid var(--panel-border);box-shadow:var(--shadow);z-index:5;animation:bannerIn .25s ease}.result-banner.user{color:var(--win)}.result-banner.ai{color:var(--lose)}.result-banner.draw{color:var(--tie)}@keyframes bannerIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.7)}to{opacity:1;transform:translate(-50%,-50%)}}.prompt-line{text-align:center;min-height:24px;font-size:14px;color:var(--muted)}.prompt-line b{color:var(--text)}.keys{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.key{display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:10px;background:var(--panel);box-shadow:var(--shadow);color:var(--muted);transition:all .12s ease}.key,.key kbd{border:1px solid var(--panel-border);font-size:13px}.key kbd{font-family:inherit;background:var(--bg-soft);border-radius:6px;padding:2px 8px;font-weight:700;color:var(--text)}.key.active{border-color:var(--user);color:var(--text);box-shadow:0 0 16px rgba(5,150,105,.2);transform:translateY(-2px)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:10px;gap:10px}.stat{background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;padding:10px 12px;box-shadow:var(--shadow)}.stat .k{font-size:11px;color:var(--muted);margin-bottom:4px}.stat .v{font-size:20px;font-weight:800;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stat .sub{font-size:10px;color:var(--muted);margin-top:2px}.stat.user .v{color:var(--user)}.stat.ai .v{color:var(--ai)}.content-grid{display:grid;grid-template-columns:1.6fr 1fr;grid-gap:18px;gap:18px;align-items:start}.col-left,.col-right{display:flex;flex-direction:column;gap:18px;min-width:0}@media (max-width:900px){.screen-grid{grid-template-columns:1fr}}.chart-panel{flex:1 1;min-height:0;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.chart-panel h2{font-size:14px;font-weight:600;color:var(--muted);margin-bottom:12px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}.legend{display:flex;gap:16px;font-size:12px}.legend i{display:inline-block;width:18px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}.chart-wrap{flex:1 1;min-height:0;width:100%}.chart-wrap svg{width:100%;height:100%;display:block}.thoughts-panel{padding:18px}.thoughts-panel h2{font-size:14px;font-weight:600;color:var(--muted);margin-bottom:12px}.thoughts{gap:10px;font-size:12px;color:var(--muted)}.probs,.thoughts{display:flex;flex-wrap:wrap;align-items:center}.probs{gap:6px}.prob-chip{display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;border:1px solid var(--panel-border);background:var(--panel);box-shadow:var(--shadow)}.prob-chip .bar{width:42px;height:5px;background:#e5e7eb;border-radius:3px;overflow:hidden}.prob-chip .bar i{display:block;height:100%;background:var(--ai);border-radius:3px}.lang-btn{font-size:12px;padding:4px 10px;border-radius:8px;border:1px solid var(--panel-border);background:var(--panel);color:var(--muted);cursor:pointer;font-family:inherit;transition:all .12s ease}.lang-btn:hover{color:var(--text);border-color:var(--accent)}.thoughts-panel{flex:none;background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.history-panel h2,.thoughts-panel h2{font-size:14px;font-weight:600;color:var(--muted);margin-bottom:12px}.history-panel{flex:none;height:420px;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.h-legend{display:flex;gap:10px;font-size:11px;color:var(--muted);margin:-6px 0 10px}.h-legend b{font-weight:600}.h-legend .lg-win{color:var(--win)}.h-legend .lg-lose{color:var(--lose)}.h-legend .lg-tie{color:var(--tie)}.history{flex:1 1;min-height:0;display:flex;flex-direction:column;gap:6px;overflow-y:auto;scrollbar-width:none;scrollbar-color:transparent transparent}.history::-webkit-scrollbar{width:6px}.history::-webkit-scrollbar-track{background:transparent}.history::-webkit-scrollbar-thumb{background:transparent;border-radius:3px;-webkit-transition:background .2s ease;transition:background .2s ease}.history.scrolling{scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}.history.scrolling::-webkit-scrollbar-thumb{background:#cbd5e1}.history.scrolling::-webkit-scrollbar-thumb:hover{background:#94a3b8}.h-row{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:10px;border:1px solid var(--panel-border);background:var(--panel-2);font-size:15px}.h-row .h-n{font-size:11px;color:var(--muted);width:32px;flex-shrink:0;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.h-row .h-moves{flex:1 1;letter-spacing:3px}.h-row .h-res{font-size:12px;font-weight:600}.h-row.user_win{border-color:rgba(5,150,105,.55);background:rgba(5,150,105,.1)}.h-row.user_win .h-res{color:var(--win)}.h-row.ai_win{border-color:rgba(220,38,38,.5);background:rgba(220,38,38,.09)}.h-row.ai_win .h-res{color:var(--lose)}.h-row.draw{border-color:rgba(217,119,6,.5);background:rgba(217,119,6,.1)}.h-row.draw .h-res{color:var(--tie)}.note{font-size:12px;color:var(--gold);text-align:center;min-height:18px}.seo-footer{background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;padding:22px 24px;box-shadow:var(--shadow);font-size:13px;color:var(--muted);line-height:1.9;display:flex;flex-direction:column;gap:12px}.seo-footer h2{font-size:15px;color:var(--text)}.seo-footer h3{font-size:13px;margin-bottom:8px}.seo-footer h3,.seo-footer strong{color:var(--text)}.seo-tags{font-size:11px;color:#9ca3af;border-top:1px solid var(--panel-border);padding-top:12px}.faq details{border:1px solid var(--panel-border);border-radius:10px;padding:10px 14px;background:var(--panel-2)}.faq details+details{margin-top:8px}.faq summary{cursor:pointer;font-weight:600;color:var(--text)}.faq details p{margin-top:8px}@media (max-width:1280px){.screen-grid{height:auto;min-height:0;grid-template-columns:1fr}.col-left{order:2}.col-center{order:1}.col-right{order:3}.chart-wrap{height:220px}.history-panel{height:340px}.history{max-height:none}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}}@media (max-width:640px){.arena{grid-template-columns:1fr;gap:10px;padding:20px}.vs{display:none}.card{width:110px;height:110px;font-size:52px}}