.page{display:flex;flex-direction:column;min-height:100vh}.nav{display:flex;align-items:center;gap:2rem;padding:1.25rem clamp(1rem,4vw,3rem);border-bottom:1px solid var(--border);position:sticky;top:0;background:#fffffff2;-webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);z-index:10}.brand{display:flex;align-items:center;gap:.625rem;font-weight:700;font-size:1.1rem;color:var(--text);text-decoration:none}.nav__links{display:flex;gap:1.5rem;margin-left:auto}.nav__links a{color:var(--text-muted);font-size:.95rem}.nav__links a:hover{color:var(--text);text-decoration:none}@media (max-width: 640px){.nav__links{display:none}}.download-btn{display:inline-flex;flex-direction:column;align-items:center;background:var(--accent);color:var(--text-inverse);border-radius:var(--radius);padding:1.5rem 2.75rem;text-decoration:none;font-weight:600;transition:background .15s ease,transform .15s ease;box-shadow:0 8px 24px #6aaa6447}.download-btn:hover{background:var(--accent-strong);text-decoration:none;transform:translateY(-1px)}.download-btn:active{transform:translateY(0)}.download-btn__label{font-size:1.75rem}.download-btn__meta{font-size:1.15rem;font-weight:500;opacity:.85;margin-top:4px}.download-btn--small{padding:.5rem 1rem;flex-direction:row;gap:.5rem;box-shadow:none}.download-btn--small .download-btn__label{font-size:.9rem}.download-btn--small .download-btn__meta{display:none}.download-btn-wrap{display:inline-flex;flex-direction:column;align-items:center}.download-btn__terms{margin:.5rem 0 0;font-size:.75rem;color:var(--text-muted);max-width:22rem;text-align:center;line-height:1.35}.download-btn-wrap--small .download-btn__terms{font-size:.65rem;margin-top:.25rem;max-width:11rem;line-height:1.2}.download-hint{position:fixed;top:0;right:4.6rem;z-index:1000;display:flex;flex-direction:column;align-items:flex-end;gap:.5rem;pointer-events:none;animation:download-hint-fade 6s ease forwards}.download-hint--safari{right:7.5rem}.download-hint__arrow{width:44px;height:110px;filter:drop-shadow(0 2px 6px rgba(15,23,42,.35));animation:download-hint-bounce .9s ease-in-out infinite}.download-hint__bubble{background:var(--accent);color:var(--text-inverse);border:2px solid #fff;padding:.75rem 1rem;border-radius:var(--radius);font-size:.95rem;font-weight:600;max-width:18rem;text-align:center;box-shadow:0 10px 30px #0f172a40}@media (max-width: 640px){.download-hint{right:1rem}}@keyframes download-hint-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-14px)}}@keyframes download-hint-fade{0%{opacity:0;transform:translateY(8px)}8%{opacity:1;transform:translateY(0)}85%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.download-hint__arrow,.download-hint{animation:none}}.hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:clamp(3rem,8vw,6rem) clamp(1rem,4vw,3rem) clamp(2rem,6vw,4rem);background:linear-gradient(180deg,#f8faf7,#fff)}.hero__icon{margin-bottom:1.5rem;filter:drop-shadow(0 10px 20px rgba(15,23,42,.08))}.hero__sub{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--text-muted);max-width:38rem;margin:.5rem auto 2rem}.hero__small{font-size:.85rem;color:var(--text-muted);margin-top:1rem}.features{padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem);max-width:var(--max-width);margin:0 auto;width:100%}.features h2{text-align:center;margin-bottom:2.5rem}.features__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem}.feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;transition:transform .15s ease,box-shadow .15s ease}.feature:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0f172a0f}.feature h3{margin-bottom:.5rem}.feature p{color:var(--text-muted);margin:0;font-size:.95rem}.how-to-play{background:#f8faf7;padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem)}.how-to-play h2{text-align:center;margin-bottom:2rem}.how-to-play ol{max-width:38rem;margin:0 auto 1.5rem;padding-left:1.5rem;color:var(--text)}.how-to-play li{margin-bottom:.75rem}.how-to-play__tip{max-width:38rem;margin:0 auto;text-align:center;color:var(--text-muted);font-style:italic}.faq{padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem);max-width:48rem;margin:0 auto;width:100%}.faq h2{text-align:center;margin-bottom:2rem}.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem 1.25rem;margin-bottom:.75rem;background:#fff}.faq-item summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-item summary:after{content:"+";font-size:1.25rem;color:var(--text-muted);transition:transform .15s ease}.faq-item[open] summary:after{content:"−"}.faq-item p{margin:.75rem 0 0;color:var(--text-muted)}.cta{padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem);background:var(--bg);color:var(--text-inverse);text-align:center}.cta h2{color:var(--text-inverse);margin-bottom:1.5rem}.cta .download-btn{background:var(--text-inverse);color:var(--accent);box-shadow:none}.cta .download-btn:hover{background:#e2e8f0}.footer{margin-top:auto;padding:1.5rem clamp(1rem,4vw,3rem);border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:.875rem}.footer p{margin:0 0 .25rem}.footer__links{display:inline-flex;align-items:center;gap:.5rem}.footer__links a{color:var(--text-muted)}.footer__links a:hover{color:var(--text);text-decoration:none}.content{max-width:44rem;margin:0 auto;padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem)}.content__header{margin-bottom:2rem;border-bottom:1px solid var(--border);padding-bottom:1.25rem}.content__header h1{font-size:clamp(2rem,4vw,2.75rem);margin:0 0 .5rem}.content__updated{color:var(--text-muted);margin:0;font-size:.9rem}.content section{margin-bottom:2rem}.content section:last-child{margin-bottom:0}.content h2{font-size:1.25rem;margin:0 0 .75rem;letter-spacing:-.005em}.content p{color:var(--text)}.content ul{padding-left:1.25rem;margin:0 0 1em}.content ul li{margin-bottom:.5rem}.content code{background:#f1f5f9;padding:.1rem .35rem;border-radius:4px;font-size:.9em}:root{--bg: #1a1a1b;--bg-soft: #2a2a2c;--surface: #ffffff;--text: #121213;--text-muted: #6b7280;--text-inverse: #f7f7f8;--accent: #6aaa64;--accent-strong: #538d4e;--border: #d3d6da;--radius: 12px;--radius-sm: 8px;--max-width: 1100px;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--surface);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.2;margin:0 0 .5em}h1{font-size:clamp(2.5rem,5vw,4rem);letter-spacing:-.02em}h2{font-size:clamp(1.75rem,3vw,2.5rem);letter-spacing:-.015em}h3{font-size:1.15rem}p{margin:0 0 1em}