@import"https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;500;700;800&family=Noto+Sans+JP:wght@400;500;700;800&family=Noto+Sans+SC:wght@400;500;700;800&display=swap";:root{--bg: #0b0c10;--bg-soft: #14161d;--bg-card: #171a22;--border: #262a35;--fg: #f2f4f8;--muted: #9aa0aa;--accent: #ff5b2e;--accent-2: #ffb01f;--green: #21d07a;--radius: 16px;--maxw: 1080px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:Noto Sans,system-ui,-apple-system,sans-serif;line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}:lang(ja) body,:lang(ja) h1,:lang(ja) h2,:lang(ja) h3,:lang(ja) button{font-family:Noto Sans JP,system-ui,sans-serif}:lang(zh) body,:lang(zh) h1,:lang(zh) h2,:lang(zh) h3,:lang(zh) button{font-family:Noto Sans SC,system-ui,sans-serif}a{color:inherit;text-decoration:none}h1,h2,h3{line-height:1.2;margin:0 0 .4em;font-weight:800}h1{font-size:clamp(1.5rem,4vw,2.3rem)}h2{font-size:clamp(1.2rem,3vw,1.6rem)}p{margin:0 0 1em}.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}.muted{color:var(--muted)}.site-header{position:sticky;top:0;z-index:30;background:#0b0c10db;backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header .row{display:flex;align-items:center;gap:18px;height:60px}.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.15rem}.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}.nav{display:flex;gap:16px;margin-left:auto;align-items:center}.nav a{color:var(--muted);font-weight:600;font-size:.95rem}.nav a:hover,.nav a[aria-current=page]{color:var(--fg)}.lang{position:relative}.lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;color:var(--muted);font-weight:600;font-size:.95rem}.lang summary::-webkit-details-marker{display:none}.lang .menu{position:absolute;right:0;top:130%;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:6px;min-width:150px;box-shadow:0 12px 30px #00000080}.lang .menu a{display:block;padding:8px 12px;border-radius:8px;color:var(--fg);font-size:.92rem}.lang .menu a:hover{background:var(--bg-soft)}.lang .menu a[aria-current=page]{color:var(--accent)}.ic{width:18px;height:18px;flex:none}main{padding:30px 0 60px}.hero{text-align:center;padding:18px 0 26px}.hero p{color:var(--muted);max-width:640px;margin:0 auto}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}.card{display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;transition:border-color .15s,transform .15s}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.card .ic{width:26px;height:26px;color:var(--accent);margin-bottom:10px}.card h3{font-size:1.08rem;margin-bottom:6px}.card p{color:var(--muted);font-size:.9rem;margin:0}.play-wrap{max-width:720px;margin:0 auto}.controls{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:18px 0}.chip{border:1px solid var(--border);background:var(--bg-soft);color:var(--muted);padding:8px 16px;border-radius:999px;font-weight:700;cursor:pointer;font-size:.95rem;font-family:inherit}.chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#1a0d06}.stats{display:flex;justify-content:center;gap:26px;margin:14px 0}.stat{text-align:center;min-width:76px}.stat .v{font-size:1.7rem;font-weight:800}.stat .k{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.board{user-select:none;-webkit-user-select:none;cursor:pointer;position:relative;border-radius:20px;border:2px dashed var(--border);background:radial-gradient(120% 120% at 50% 0%,#1b1f2a,#121420);min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;transition:background .12s,border-color .12s;touch-action:manipulation}.board:active{border-color:var(--accent)}.board.scrollmode{touch-action:none;overscroll-behavior:contain}.board.live{border-style:solid;border-color:var(--accent)}.board .big{font-size:clamp(3rem,12vw,5.5rem);font-weight:800;line-height:1}.board .big small{font-size:.28em;font-weight:700;color:var(--muted);margin-left:.2em}.board .hint{color:var(--muted);font-size:1.05rem;margin-top:10px}.board.green{background:radial-gradient(120% 120% at 50% 0%,#1f7d4d,#15603a);border-color:var(--green)}.board.red{background:radial-gradient(120% 120% at 50% 0%,#7d2a2a,#5a1d1d);border-color:var(--accent)}.result{margin-top:16px;text-align:center}.result .score{font-size:1.1rem}.result .score b{color:var(--accent-2);font-size:1.4rem}.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#1a0d06;border:none;padding:12px 26px;border-radius:999px;font-weight:800;font-size:1rem;cursor:pointer;margin-top:12px;font-family:inherit}.btn:hover{filter:brightness(1.06)}.prose{max-width:720px;margin:40px auto 0}.prose h2{margin-top:1.4em}.prose p,.prose li{color:#d7dae1}.prose ul{padding-left:1.2em}.ad-slot{max-width:720px;margin:26px auto;min-height:90px;border:1px dashed var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#5b616d;font-size:.8rem;letter-spacing:.05em}.site-footer{border-top:1px solid var(--border);padding:28px 0;color:var(--muted);font-size:.88rem}.site-footer .row{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}.foot-links{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:14px}.foot-links a{font-weight:600}.site-footer a{color:var(--muted)}.site-footer a:hover{color:var(--fg)}@media(max-width:520px){.stats{gap:16px}.nav{gap:10px}.nav a{font-size:.88rem}.board{min-height:300px}}