.rules { background: var(--light); padding: 36px 56px; border-bottom: 1px solid var(--line); }
  .rules ul { max-width: 980px; margin: 0 auto; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 40px; }
  .rules li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; line-height: 1.6; color: var(--text-2); text-align: justify; }
  .rules li::before { content: "—"; color: var(--royal); font-weight: 700; }

  .shop { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 44px; max-width: 1220px; margin: 0 auto; padding: 48px 56px 72px; }
  .section-title { font-family: 'Source Serif 4', serif; font-size: 28px; font-weight: 700; color: var(--navy-dark); margin: 0 0 8px; }
  .section-intro { font-size: 14.5px; line-height: 1.7; color: var(--text-3); margin: 0 0 20px; text-align: justify; }
  .shop-section + .shop-section { margin-top: 48px; }

  .packages h2 { font-family: 'Source Serif 4', serif; font-size: 22px; font-weight: 700; color: var(--navy-dark); margin: 0 0 8px; }
  .packages p { font-size: 14.5px; line-height: 1.7; color: var(--text-3); margin: 0 0 14px; text-align: justify; }
  .package-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }

  details.group { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 12px; background: #FFFFFF; }
  details.group > summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; font-weight: 600; font-size: 16px; color: var(--navy-dark); }
  details.group > summary::-webkit-details-marker { display: none; }
  details.group > summary::after { content: "+"; font-size: 22px; font-weight: 500; color: var(--royal); line-height: 1; }
  details.group[open] > summary::after { content: "−"; }
  details.group[open] > summary { border-bottom: 1px solid var(--line); }
  .count { margin-left: auto; margin-right: 12px; font-size: 13px; font-weight: 600; color: var(--royal); }
  .items { padding: 4px 20px 8px; }
  .item { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 11px 0; }
  .item + .item { border-top: 1px solid var(--line); }
  .item label { display: flex; align-items: center; gap: 12px; flex: 1; font-size: 14.5px; color: var(--text-2); cursor: pointer; }
  .item input[type="checkbox"] { width: 19px; height: 19px; accent-color: var(--royal); flex: none; }
  .item input[type="number"] { width: 64px; padding: 7px 8px; border: 1px solid #D7DCE3; border-radius: 6px; font-size: 14px; font-family: inherit; flex: none; }
  .price { font-size: 14px; font-weight: 700; color: var(--navy-dark); white-space: nowrap; }
  .each { font-weight: 400; color: var(--muted); font-size: 13px; }

  .summary { position: sticky; top: 96px; align-self: start; background: var(--light); border-radius: 10px; padding: 26px 26px 28px; }
  .summary h2 { font-family: 'Source Serif 4', serif; font-size: 22px; font-weight: 700; color: var(--navy-dark); margin: 0 0 14px; }
  .empty { font-size: 14px; line-height: 1.6; color: var(--muted); margin: 0 0 16px; text-align: justify; }
  .lines { list-style: none; margin: 0 0 14px; padding: 0; max-height: 300px; overflow-y: auto; }
  .lines li { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; color: var(--text-2); }
  .lines .l-name { flex: 1; }
  .lines .l-price { font-weight: 600; white-space: nowrap; }
  .lines button { border: none; background: none; color: var(--royal); cursor: pointer; font-size: 18px; line-height: 1; padding: 0 2px; font-family: inherit; }
  .fee-line { display: flex; justify-content: space-between; font-size: 13.5px; color: var(--text-2); padding: 8px 0; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
  .total { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
  .total span { font-size: 15px; font-weight: 600; color: var(--navy-dark); }
  .total strong { font-family: 'Source Serif 4', serif; font-size: 30px; color: var(--navy-dark); }
  .steps { display: flex; flex-direction: column; gap: 10px; }
  .step-note { font-size: 12.5px; line-height: 1.6; color: var(--muted); margin: 4px 0 0; text-align: justify; }
  .order-text { width: 100%; min-height: 96px; margin-top: 8px; padding: 10px 12px; border: 1px solid #D7DCE3; border-radius: 6px; font-size: 12.5px; font-family: inherit; color: var(--text-2); resize: vertical; background: #FFFFFF; }
  .link-btn { background: none; border: none; color: var(--navy-dark); font-weight: 600; font-size: 13px; text-decoration: underline; cursor: pointer; padding: 0; font-family: inherit; }
  .status { font-size: 12.5px; color: var(--muted); min-height: 18px; margin: 6px 0 0; }

  .custom { background: var(--light); border-radius: 10px; padding: 28px 30px; margin-top: 48px; }
  .custom h2 { font-family: 'Source Serif 4', serif; font-size: 22px; font-weight: 700; color: var(--navy-dark); margin: 0 0 8px; }
  .custom p { font-size: 14.5px; line-height: 1.7; color: var(--text-3); margin: 0 0 16px; text-align: justify; }


  .mobile-bar { display: none; }
  .mobile-bar[hidden] { display: none !important; }

  .btn-solid { background: var(--red); color: #fff; border: 2px solid var(--red); }
  .btn-solid:hover { background: var(--navy-dark); border-color: var(--navy-dark); }
  .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; pointer-events: none; }
  .btn-line { border-color: var(--navy-dark); color: var(--navy-dark); }
  .btn.btn-line:hover { background: var(--navy-dark); color:#fff; }

  @media (max-width: 960px) {
    .rules { padding: 28px 20px; }
    .rules ul { grid-template-columns: minmax(0,1fr); }
    .shop { grid-template-columns: minmax(0,1fr); padding: 32px 20px 120px; gap: 32px; }
    .summary { position: static; }
    .mobile-bar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: var(--navy-dark); color: #fff; padding: 12px 20px; align-items: center; justify-content: space-between; gap: 12px; }
    .mobile-bar strong { font-family: 'Source Serif 4', serif; font-size: 22px; }
    .mobile-bar a { background: #fff; color: var(--navy-dark); padding: 10px 18px; border-radius: 6px; font-weight: 600; font-size: 14px; }
  }

  .btn-solid { background: var(--pink-btn); color: var(--navy-dark); border: 2px solid var(--navy-dark); }
  .btn-solid:hover { background: var(--pink-btn-hover); border-color: var(--navy-dark); color: var(--navy-dark); }
  .btn-line { border-color: var(--navy-dark); color: var(--navy-dark); }
  .btn.btn-line:hover { background: var(--navy-dark); color: #fff; }
  .mobile-bar a { color: var(--navy-dark); }