:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --line-dark:#d1d5db;
  --dark:#0f172a;
  --dark2:#111827;
  --primary:#111827;
  --shadow:0 12px 30px rgba(15,23,42,.08);
  --shadow-soft:0 8px 24px rgba(15,23,42,.06);
  --radius:20px;
  --radius-sm:14px;
  --container:1180px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body.rhHelpBody{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}

.rhContainer{
  width:min(calc(100% - 32px), var(--container));
  margin:0 auto;
}

.rhMainWrap{
  min-height:calc(100vh - 160px);
  padding:24px 0 64px;
}

/* top */
.rhTop{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(229,231,235,.9);
}

.rhTopRow{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}

.rhTopRowMain{
  min-height:74px;
  padding:12px 0;
}

.rhTopRowNav{
  min-height:56px;
}

.rhTopNavBar{
  border-top:1px solid rgba(229,231,235,.75);
  background:rgba(255,255,255,.92);
}

.rhTopBrandGroup{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
  flex:0 0 auto;
}

.rhTopSymbol{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border-radius:14px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:0 6px 18px rgba(15,23,42,.06);
  overflow:hidden;
}

.rhTopSymbol img{
  width:28px;
  height:28px;
  object-fit:contain;
}

.rhTopSubName{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 16px;
  border-radius:14px;
  background:#111827;
  color:#fff;
  text-decoration:none;
  font-weight:900;
  letter-spacing:-.02em;
  font-size:16px;
  white-space:nowrap;
}

.rhTopActions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:8px;
  flex:0 0 auto;
}

.rhNavBtn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 16px;
  border-radius:14px;
  background:#111827;
  color:#fff;
  font-size:14px;
  font-weight:800;
  border:1px solid #111827;
  white-space:nowrap;
}
.rhNavBtn:hover{opacity:.92}

.rhUserMenuWrap{
  position:relative;
}

.rhUserMenuBtn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 14px 0 16px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:#111827;
  font-weight:800;
  cursor:pointer;
}

.rhUserMenuBtn[aria-expanded="true"]{
  border-color:#111827;
  box-shadow:0 8px 24px rgba(15,23,42,.08);
}

.rhUserMenuName{
  max-width:120px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.rhUserMenuCaret{
  font-size:12px;
  color:#6b7280;
}

.rhUserDropdown{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  min-width:164px;
  padding:8px;
  border-radius:16px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:0 18px 36px rgba(15,23,42,.12);
}

.rhUserDropdown a{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:0 12px;
  border-radius:12px;
  text-decoration:none;
  color:#111827;
  font-weight:700;
}

.rhUserDropdown a:hover{
  background:#f3f4f6;
}

.rhGnb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}

.rhGnbLink{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:12px;
  color:#475569;
  font-weight:700;
  font-size:14px;
  white-space:nowrap;
}

.rhGnbLink:hover{
  background:#f3f4f6;
  color:#111827;
}

.rhGnbLink.is-on{
  background:#111827;
  color:#fff;
}

/* hero */
.rhHero{
  padding:6px 0 16px;
}
.rhHeroCard{
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.18), transparent 34%),
    linear-gradient(135deg, #0f172a 0%, #172554 100%);
  color:#fff;
  border-radius:28px;
  box-shadow:var(--shadow);
  padding:34px;
}
.rhHeroEyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  color:#c7d2fe;
  margin-bottom:10px;
}
.rhHeroTitle{
  margin:0;
  font-size:38px;
  line-height:1.15;
  letter-spacing:-.04em;
}
.rhHeroDesc{
  margin:14px 0 0;
  max-width:760px;
  color:rgba(255,255,255,.82);
  font-size:16px;
}

.rhQuickGrid{
  margin-top:26px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
}
.rhQuickCard{
  display:block;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:18px;
  color:#fff;
}
.rhQuickCard strong{
  display:block;
  font-size:17px;
  line-height:1.3;
}
.rhQuickCard span{
  display:block;
  margin-top:8px;
  font-size:13px;
  line-height:1.55;
  color:rgba(255,255,255,.76);
}
.rhQuickCard:hover{
  transform:translateY(-2px);
  transition:.18s ease;
  background:rgba(255,255,255,.11);
}

.rhSection{padding:14px 0}
.rhCols2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.rhPanel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
  padding:22px;
}
.rhPanelHead{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:14px;
}
.rhPanelHead h2,
.rhSectionTitle{
  margin:0;
  font-size:22px;
  line-height:1.3;
  letter-spacing:-.03em;
}
.rhMoreLink{
  font-size:14px;
  font-weight:700;
  color:#4b5563;
}
.rhMoreLink:hover{color:#111827}

.rhList{
  list-style:none;
  margin:0;
  padding:0;
}
.rhListItem + .rhListItem{
  border-top:1px solid var(--line);
}
.rhListLink{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 2px;
}
.rhListTitle{
  min-width:0;
  font-size:15px;
  font-weight:700;
  color:#111827;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.rhListMeta{
  flex:0 0 auto;
  font-size:12px;
  color:#6b7280;
}
.rhEmpty{
  border:1px dashed var(--line);
  border-radius:16px;
  background:#fafafa;
  color:#6b7280;
  text-align:center;
  padding:24px 16px;
}

.rhPageHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px;
  margin-bottom:18px;
}
.rhPageTitle{
  margin:0;
  font-size:32px;
  line-height:1.15;
  letter-spacing:-.04em;
}
.rhPageDesc{
  margin:8px 0 0;
  color:#6b7280;
  font-size:15px;
}
.rhChipRow{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.rhChip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:#4b5563;
  font-size:13px;
  font-weight:700;
}
.rhChip.isActive{
  background:#111827;
  border-color:#111827;
  color:#fff;
}

.rhCard{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
  padding:22px;
}
.rhCard + .rhCard{margin-top:16px}

.rhNoticeItem{
  display:block;
  padding:2px 0;
}
.rhNoticeTop{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.rhBadge{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 10px;
  border-radius:999px;
  background:#eff6ff;
  color:#1d4ed8;
  font-size:12px;
  font-weight:800;
}
.rhBadgePin{
  background:#111827;
  color:#fff;
}
.rhNoticeTitle{
  margin:0;
  font-size:20px;
  line-height:1.35;
  letter-spacing:-.03em;
}
.rhNoticeMeta{
  margin-top:8px;
  font-size:13px;
  color:#6b7280;
}

.rhNoticeBody{
  margin-top:22px;
  font-size:15px;
  line-height:1.8;
  color:#1f2937;
}
.rhNoticeBody img{
  height:auto;
  border-radius:14px;
}
.rhNoticeBody p:first-child{margin-top:0}
.rhNoticeBody p:last-child{margin-bottom:0}

.rhPager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:22px;
  flex-wrap:wrap;
}
.rhPageBtn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:#374151;
  font-size:14px;
  font-weight:700;
}
.rhPageBtn.isActive{
  background:#111827;
  color:#fff;
  border-color:#111827;
}

.rhFaqGroup + .rhFaqGroup{margin-top:18px}
.rhFaqGroupTitle{
  margin:0 0 12px;
  font-size:18px;
  line-height:1.35;
  letter-spacing:-.02em;
}
.rhFaqItem{
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  overflow:hidden;
}
.rhFaqItem + .rhFaqItem{margin-top:10px}
.rhFaqQ{
  width:100%;
  padding:17px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  border:0;
  background:#fff;
  cursor:pointer;
  text-align:left;
}
.rhFaqQText{
  font-size:15px;
  font-weight:800;
  color:#111827;
}
.rhFaqIcon{
  flex:0 0 auto;
  color:#6b7280;
  font-size:18px;
  line-height:1;
}
.rhFaqA{
  display:none;
  padding:0 18px 18px;
  color:#374151;
  font-size:14px;
  line-height:1.8;
}
.rhFaqItem.isOpen .rhFaqA{display:block}
.rhFaqItem.isOpen .rhFaqQ{
  border-bottom:1px solid var(--line);
  background:#fcfcfd;
}

.rhNoticeNav{
  display:flex;
  align-items:stretch;
  gap:12px;
  margin-top:22px;
}
.rhNoticeNavCard{
  flex:1 1 0;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  padding:16px;
}
.rhNoticeNavLabel{
  font-size:12px;
  color:#6b7280;
  font-weight:800;
  margin-bottom:6px;
}
.rhNoticeNavTitle{
  font-size:14px;
  font-weight:700;
  color:#111827;
  line-height:1.5;
}

.rhFooter{
  border-top:1px solid var(--line);
  background:#fff;
}
.rhFooterIn{
  min-height:72px;
  display:flex;
  align-items:center;
}
.rhFooterText{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.muted{
  color:#6b7280;
  font-size:13px;
}

.rhForm{display:block}
.rhFormRow + .rhFormRow{margin-top:16px}

.rhField{
  display:block;
}
.rhFieldLabel{
  display:block;
  margin-bottom:8px;
  font-size:14px;
  font-weight:800;
  color:#111827;
}
.rhField input,
.rhField textarea,
.rhField select{
  width:100%;
  border:1px solid #d1d5db;
  background:#fff;
  color:#111827;
  border-radius:14px;
  padding:14px 15px;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.rhField textarea{
  resize:vertical;
  min-height:180px;
}
.rhField input:focus,
.rhField textarea:focus,
.rhField select:focus{
  border-color:#111827;
  box-shadow:0 0 0 4px rgba(17,24,39,.08);
}

.rhHelpNote{
  margin-top:16px;
  padding:14px 16px;
  border-radius:14px;
  background:#f8fafc;
  border:1px solid #e5e7eb;
  color:#475569;
  font-size:14px;
  line-height:1.7;
}

.rhFormActions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:10px;
  margin-top:22px;
  flex-wrap:wrap;
}

.rhBtnDark,
.rhBtnLine{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:120px;
  height:46px;
  padding:0 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:800;
  cursor:pointer;
  text-decoration:none;
}
.rhBtnDark{
  border:1px solid #111827;
  background:#111827;
  color:#fff;
}
.rhBtnLine{
  border:1px solid #d1d5db;
  background:#fff;
  color:#111827;
}
.rhBtnDark:hover,
.rhBtnLine:hover{
  opacity:.94;
}

@media (max-width: 1100px){
  .rhQuickGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rhCols2{grid-template-columns:1fr}
}

@media (max-width: 860px){
  .rhTopRowMain{
    min-height:auto;
    padding:14px 0;
    flex-wrap:wrap;
    align-items:flex-start;
  }
  .rhTopActions{
    width:100%;
    justify-content:flex-end;
  }
  .rhTopNavBar{
    overflow-x:auto;
  }
  .rhTopRowNav{
    min-height:auto;
    padding:10px 0;
  }
  .rhGnb{
    flex-wrap:nowrap;
    overflow-x:auto;
    -ms-overflow-style:none;
    scrollbar-width:none;
  }
  .rhGnb::-webkit-scrollbar{
    display:none;
  }
}

@media (max-width: 640px){
  .rhMainWrap{padding-top:18px}
  .rhHeroCard{padding:24px}
  .rhHeroTitle{font-size:28px}
  .rhQuickGrid{grid-template-columns:1fr}
  .rhPageHead{
    flex-direction:column;
    align-items:flex-start;
  }
  .rhPageTitle{font-size:28px}
  .rhPanel,.rhCard{padding:18px}
  .rhListLink{
    align-items:flex-start;
    flex-direction:column;
    gap:6px;
  }
  .rhNoticeNav{
    flex-direction:column;
  }
  .rhTopSymbol{
    width:42px;
    height:42px;
    border-radius:12px;
  }
  .rhTopSymbol img{
    width:26px;
    height:26px;
  }
  .rhTopSubName,
  .rhNavBtn,
  .rhUserMenuBtn{
    height:40px;
    border-radius:12px;
  }
  .rhUserMenuName{
    max-width:84px;
  }
}