.rules-page { max-width: 900px; margin: 16px auto 40px; padding: 48px 56px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.rules-page .rules-header { padding-bottom: 28px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.rules-page h1 { font-size: clamp(28px, 4vw, 38px); line-height: 1.18; margin-bottom: 14px; }
.rules-page .rules-version { margin: 0; color: var(--muted); font-size: 16px; }
.rules-page .rules-copy { font-size: 18px; line-height: 1.8; }
.rules-page .rules-copy p { margin: 0 0 24px; white-space: pre-wrap; overflow-wrap: anywhere; }
.rules-page .rules-copy p:first-child { font-size: 15px; line-height: 1.65; color: var(--muted); margin-bottom: 32px; }
.rules-page .rules-details { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 22px; }
.rules-page .rules-details summary { cursor: pointer; color: var(--muted); font-size: 14px; }
.rules-page .rules-hash { font-size: 13px; overflow-wrap: anywhere; line-height: 1.7; }
.rules-page .rules-note { margin: 24px 0; padding: 16px 20px; background: var(--bg2); border-radius: 10px; color: var(--muted); font-size: 15px; line-height: 1.65; }
.rules-page .rules-footer { margin: 24px 0 0; font-size: 15px; }
@media (max-width: 600px) {
  .rules-page { margin: 0 auto 24px; padding: 28px 22px; border-radius: 14px; }
  .rules-page .rules-header { padding-bottom: 22px; margin-bottom: 24px; }
  .rules-page .rules-copy { font-size: 17px; line-height: 1.75; }
  .rules-page .rules-copy p { margin-bottom: 22px; }
}
@media print { .rules-page { border: 0; padding: 0; max-width: none; } .rules-details { display: none; } }