.hlp-wrap { max-width: 900px; margin: 0 auto; }
.hlp-top { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.hlp-back {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 15px; border: 1px solid var(--glass-border); border-radius: 10px;
  background: var(--glass-bg); color: var(--text); font-size: 13.5px; font-weight: 600;
  font-family: inherit; cursor: pointer; transition: border-color .14s, color .14s;
}
.hlp-back:hover { border-color: var(--accent); color: var(--accent); }
.hlp-ttl { font-size: 21px; font-weight: 800; margin: 0; color: var(--text); }
.hlp-lead { font-size: 13.5px; color: var(--text2); line-height: 1.7; margin: 0 0 20px; }
.hlp-updated { font-size: 12px; color: var(--text3); margin: 0 0 22px; }

.hlp-acc {
  border: 1px solid var(--glass-border); border-radius: 12px;
  background: var(--glass-bg); margin-bottom: 10px; overflow: hidden;
}
.hlp-acc > summary {
  list-style: none; cursor: pointer; padding: 15px 18px;
  display: flex; align-items: center; gap: 12px;
  font-size: 15px; font-weight: 700; color: var(--text);
}
.hlp-acc > summary::-webkit-details-marker { display: none; }
.hlp-acc > summary:hover { color: var(--accent); }
.hlp-acc-no {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent-pill); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 12.5px; font-weight: 800;
}
.hlp-acc-tx { flex: 1; min-width: 0; }
.hlp-acc-ch { flex-shrink: 0; color: var(--text3); font-size: 13px; transition: transform .18s; }
.hlp-acc[open] > summary { border-bottom: 1px solid var(--glass-border); }
.hlp-acc[open] > summary .hlp-acc-ch { transform: rotate(90deg); }
.hlp-bd { padding: 6px 22px 20px; }

.hlp-bd h3 { font-size: 14px; font-weight: 700; color: var(--text); margin: 20px 0 8px; }
.hlp-bd h3:first-child { margin-top: 12px; }
.hlp-bd p { font-size: 13.5px; line-height: 1.75; color: var(--text2); margin: 0 0 10px; }
.hlp-bd ol, .hlp-bd ul { margin: 0 0 12px; padding-left: 20px; }
.hlp-bd li { font-size: 13.5px; line-height: 1.75; color: var(--text2); margin-bottom: 6px; }
.hlp-bd strong { color: var(--text); font-weight: 700; }
.hlp-bd a { color: var(--accent); }

.hlp-note {
  border-left: 3px solid var(--accent); background: var(--accent-pill);
  border-radius: 0 8px 8px 0; padding: 12px 16px; margin: 14px 0;
}
.hlp-note p { margin: 0; color: var(--text); }
.hlp-note b { display: block; margin-bottom: 4px; }

.hlp-tbl-wrap { overflow-x: auto; margin: 12px 0 16px; }
.hlp-bd table { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 520px; }
.hlp-bd th, .hlp-bd td { border: 1px solid var(--glass-border); padding: 9px 11px; text-align: left; color: var(--text2); }
.hlp-bd th { background: var(--accent-pill); color: var(--text); font-weight: 700; }
.hlp-bd td.c, .hlp-bd th.c { text-align: center; }

.hlp-qa { margin-bottom: 14px; }
.hlp-qa b { display: block; font-size: 13.5px; color: var(--text); margin-bottom: 4px; }

@media (max-width: 640px) {
  .hlp-ttl { font-size: 18px; }
  .hlp-acc > summary { padding: 13px 14px; font-size: 14px; gap: 10px; }
  .hlp-bd { padding: 6px 15px 16px; }
  .hlp-bd p, .hlp-bd li { font-size: 13px; }
}