:root{--curtain:#a3121b;--curtain-dark:#7a0b12;--curtain-hi:#b0141e;--gold:#f5ce41;--gold-hi:#f7e59a;--on-gold:#2a1b00;--silver:#d7dbea;--special:#b084e0;--bg:#1c0b0d;--surface:#2a1215;--surface-2:#36181c;--fg:#fbf6ee;--muted:#c9b9b3;--line:#fff0dc1a;--line-strong:#fbf6ee40;--sun:#ff9aa0;--sat:#b9c6ff;--f-sans:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN",sans-serif;--f-num:"Playfair Display","Noto Sans JP",serif;--ease:cubic-bezier(.32,.72,0,1);color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%;background:var(--bg)}body{background:var(--bg);min-height:100dvh;color:var(--fg);font-family:var(--f-sans);flex-direction:column;margin:0;font-size:15px;line-height:1.75;display:flex}body>.page{flex:1;width:100%}a{color:var(--gold);text-underline-offset:3px;text-decoration-thickness:1px}.wrap{max-width:820px;padding-inline:max(16px,env(safe-area-inset-left,0px)) max(16px,env(safe-area-inset-right,0px));margin:0 auto}.wrap.wide{max-width:1120px}h1,h2,h3{text-wrap:balance;word-break:auto-phrase;margin:0;font-weight:900;line-height:1.35}p{text-wrap:pretty}h1{font-size:clamp(1.85rem,6vw,2.75rem);line-height:1.25}h2{font-size:clamp(1.3rem,4vw,1.75rem)}h3{font-size:1.06rem;font-weight:700}.sub{color:var(--muted);margin:8px 0 0;font-size:.87rem}.updated{color:var(--muted);margin:48px 0 0;font-size:.8rem}.muted{color:var(--muted)}.num{font-variant-numeric:tabular-nums}.date{font-family:var(--f-num);font-variant-numeric:lining-nums;font-weight:700}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}.skip{z-index:30;background:var(--gold);color:var(--on-gold);border-radius:8px;padding:10px 16px;font-weight:700;text-decoration:none;position:absolute;top:-80px;left:16px}.skip:focus{top:12px}#content:focus{outline:none}mark{color:var(--gold);background:0 0;font-weight:700}.curtain{color:var(--fg);background:repeating-linear-gradient(90deg,var(--curtain-dark) 0 34px,var(--curtain) 34px 58px,var(--curtain-hi) 58px 70px,var(--curtain) 70px 92px);position:relative;overflow:hidden;box-shadow:inset 0 -60px 90px #1c0b0d8c}.sitenav{flex-wrap:wrap;align-items:center;gap:0 4px;padding-block:8px;font-size:.9rem;display:flex}.brand{min-height:44px;color:var(--fg);white-space:nowrap;align-items:center;gap:10px;margin-right:auto;padding-right:12px;text-decoration:none;display:flex}.brand b{font-size:1.1rem;font-weight:900}.stamp{color:var(--on-gold);background:var(--gold);border-radius:3px;padding:0 6px;font-size:.7rem;font-weight:700;line-height:1.6}.navlinks{scrollbar-width:none;gap:0 2px;margin-inline:-10px;display:flex;overflow-x:auto}.navlinks::-webkit-scrollbar{display:none}.sitenav a.nav{min-height:44px;color:var(--fg);white-space:nowrap;align-items:center;padding:0 10px;text-decoration:none;display:inline-flex}.sitenav a.nav:hover{color:var(--gold-hi)}.sitenav a.nav[aria-current=page]{color:var(--gold);text-underline-offset:8px;font-weight:700;text-decoration:underline 2px}@media (width<=620px){.navlinks{flex-basis:calc(100% + 20px)}.sitenav a.nav{padding:0 7px}.navtail{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}.btn{min-height:48px;color:var(--fg);font:inherit;cursor:pointer;touch-action:manipulation;transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);background:0 0;border:1px solid #fbf6ee99;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:0 20px;font-weight:700;text-decoration:none;display:inline-flex}.btn:hover{border-color:var(--gold);color:var(--gold)}.btn.primary{background:var(--gold);border-color:var(--gold);color:var(--on-gold);font-weight:900}.btn.primary:hover{background:var(--gold-hi);border-color:var(--gold-hi);color:var(--on-gold)}.btn.sm{min-height:44px;padding:0 14px;font-size:.87rem}.btn.quiet{border-color:var(--line-strong)}.btn:disabled{opacity:.4;cursor:default}:is(.btn,.choice):active:not(:disabled){transform:translateY(1px)}.btn:disabled:hover{border-color:var(--line-strong);color:var(--fg)}.choices{flex-wrap:wrap;gap:6px;display:flex}.choice{border:1px solid var(--line-strong);min-height:44px;color:var(--fg);font:inherit;white-space:nowrap;cursor:pointer;touch-action:manipulation;transition:background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);background:0 0;border-radius:8px;align-items:center;gap:6px;padding:0 14px;font-size:.87rem;font-weight:700;display:inline-flex}.choice:hover{border-color:#fbf6ee8c}.choice[aria-pressed=true]{background:var(--gold);border-color:var(--gold);color:var(--on-gold)}.choice small{font-size:.8em;font-weight:500}.teamtag{letter-spacing:.08em;text-transform:uppercase;color:var(--bg);white-space:nowrap;border-radius:3px;padding:0 8px;font-size:.75rem;font-weight:900;line-height:1.6;display:inline-block}.teamtag.gold{background:var(--gold)}.teamtag.silver{background:var(--silver)}.chip{font-variant-numeric:tabular-nums;align-items:center;gap:6px;font-size:1.06rem;font-weight:700;display:inline-flex}.chip .dot{border-radius:2px;flex:none;width:8px;height:8px}.chip.gold .dot{background:var(--gold)}.chip.silver .dot{background:var(--silver)}.chip small{color:var(--muted);font-size:.75rem;font-weight:400}.chip .sp,.special{color:var(--special);font-size:.8rem;font-weight:700}a.sp{text-underline-offset:3px;text-decoration:underline}.card{background:var(--surface);border-radius:12px;padding:20px 22px}.list{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.list>li{border-bottom:1px solid var(--line);padding:12px 2px}.eyebrow{color:var(--gold);margin:0 0 8px;font-size:.9rem;font-weight:700;line-height:1.5;display:block}.rule-h{border-bottom:1px solid var(--line);padding-bottom:8px}details.fold{margin-top:12px}details.fold>summary{cursor:pointer;min-height:44px;color:var(--fg);padding-block:10px;font-weight:700;display:block}details.fold>summary>:is(h2,h3){display:block}details.fold>summary>h3{font-size:1.05rem;font-weight:700}@media (width<=520px){.card{padding:16px}}footer.site{padding:28px 0 calc(36px + env(safe-area-inset-bottom,0px));color:var(--fg);background:repeating-linear-gradient(90deg,var(--curtain-dark) 0 34px,var(--curtain) 34px 58px,var(--curtain-hi) 58px 70px,var(--curtain) 70px 92px);margin-top:72px;font-size:.8rem;line-height:1.8;box-shadow:inset 0 50px 70px #1c0b0d80}footer.site p{margin:0 0 6px}footer.site a{color:var(--fg)}footer.site .disc{font-size:.87rem;font-weight:700}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}@media (prefers-reduced-motion:reduce){.btn,.choice{transition:none}}.ask-fab{display:none}html.js .ask-fab{z-index:15;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));border:1px solid var(--gold);background:var(--surface-2);min-height:48px;color:var(--gold);font:inherit;cursor:pointer;transition:background-color .2s var(--ease),transform .2s var(--ease);border-radius:8px;align-items:center;gap:8px;padding:0 18px;font-size:.93rem;font-weight:700;display:inline-flex;position:fixed;box-shadow:0 8px 24px #00000073}html.js .ask-fab:hover{background:#43201f}html.js .ask-fab:active{transform:translateY(1px)}html.js footer.site{padding-bottom:calc(96px + env(safe-area-inset-bottom,0px))}.ask{background:var(--surface);width:100%;max-width:100%;max-height:min(88dvh,760px);color:var(--fg);border:0;border-radius:16px 16px 0 0;margin:auto 0 0;padding:0;box-shadow:0 -12px 40px #00000080}.ask[open]{flex-direction:column;display:flex}.ask::backdrop{background:#0c04069e}@media (width>=720px){.ask{border-radius:12px;width:400px;max-height:min(80dvh,680px);margin:auto 24px 24px auto;box-shadow:0 16px 48px #0000008c}}.ask-h{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:8px 8px 8px 20px;display:flex}.ask-h h2{font-size:1.06rem}.ask-tag{color:var(--muted);font-size:.8rem}.ask-x{width:44px;height:44px;color:var(--fg);cursor:pointer;background:0 0;border:0;border-radius:8px;place-items:center;margin-left:auto;display:grid}.ask-x:hover{background:var(--surface-2)}.ask-log{overscroll-behavior:contain;flex:1;min-height:120px;padding:16px 16px 8px;overflow-y:auto}.ask-msg{white-space:pre-wrap;overflow-wrap:anywhere;border-radius:12px;margin:0 0 12px;padding:12px 14px;font-size:.93rem;line-height:1.75}.ask-msg.intro{white-space:normal}.ask-msg p{margin:0}.ask-msg p+p{margin-top:8px}.ask-msg.bot{background:var(--bg);border:1px solid var(--line);margin-right:24px}.ask-msg.user{background:var(--surface-2);margin-left:48px}.ask-msg.wait{color:var(--muted)}.ask-msg.err{color:var(--sun)}.ask-note{color:var(--muted);font-size:.8rem}.ask-topics{flex-wrap:wrap;gap:8px;margin:0 0 12px;display:flex}.ask-again{margin:4px 0 12px}.ask-f{border-top:1px solid var(--line);align-items:flex-end;gap:8px;padding:12px 16px 4px;display:flex}.ask-f textarea{border:1px solid var(--line-strong);background:var(--bg);min-height:48px;max-height:30dvh;color:var(--fg);font:inherit;resize:vertical;border-radius:8px;flex:1;padding:10px 12px;font-size:16px;line-height:1.5}.ask-f textarea:focus-visible{outline:2px solid var(--gold);outline-offset:0}.ask-send{flex:none}.ask-foot{padding:4px 16px calc(12px + env(safe-area-inset-bottom,0px));color:var(--muted);margin:0;font-size:.8rem}@media (prefers-reduced-motion:reduce){.ask-log{scroll-behavior:auto}.ask-fab{transition:none}}