.rulebook{background:radial-gradient(ellipse at top right,#234553,#111e27 60%);line-height:1.7}.rulebook main{display:block;max-width:1000px;margin:auto;padding:48px 28px}.rulebook h1{font-size:56px;line-height:1.08}.rules-intro{max-width:640px}.rules-intro>p{font-size:18px}.rulebook a{color:var(--gold)}.contents{display:flex;flex-wrap:wrap;gap:12px 24px;padding:24px 0;border-bottom:1px solid var(--line)}.rulebook section{padding:42px 0;border-bottom:1px solid var(--line);scroll-margin-top:20px}.rulebook h2{font-size:32px}.rulebook h3{letter-spacing:0;font-size:18px}.rulebook li{margin:12px 0}.rules-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.rules-grid article{padding:22px;background:#243640;border-radius:12px;border:1px solid #405460}.rules-grid p{margin-bottom:0}.tip{border-left:3px solid var(--gold);background:#273a43;padding:18px}.rulebook table{width:100%;border-collapse:collapse;min-width:560px}.table-scroll{overflow:auto}.rulebook th,.rulebook td{padding:14px;text-align:left;border-bottom:1px solid #405460}.rulebook thead{color:var(--gold)}.rulebook dt{font-weight:bold;color:var(--gold);margin-top:18px}.rulebook dd{margin:5px 0 0}.rulebook footer{justify-content:center}.rulebook nav a:focus-visible{outline:2px solid var(--gold);outline-offset:4px}@media(max-width:650px){.rules-grid{grid-template-columns:1fr}.rulebook main{padding:28px 20px}.rulebook h1{font-size:40px}.rulebook h2{font-size:27px}}