:root {
  /* head.theme.css에서 정의한 CSS 변수와 동일하게 사용 */
}

/* 고객센터 하단 시트 + 고객센터 페이지 */
.dh-support-sheet {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  grid-template-rows: 1fr auto;
}

.dh-support-sheet-backdrop {
  grid-row: 1 / -1;
  grid-column: 1 / -1;
  background: rgba(0, 0, 0, .46);
  opacity: 0;
  transition: opacity .22s ease;
}

html[data-theme="light"] .dh-support-sheet-backdrop {
  background: rgba(16, 19, 27, .28);
}

.dh-support-sheet-panel {
  position: relative;
  grid-row: 2 / 3;
  grid-column: 1 / -1;
  width: 100%;
  border-top: 1px solid color-mix(in oklab, var(--line) 80%, transparent);
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel) 92%, #000 8%) 0%, color-mix(in oklab, var(--panel) 86%, #000 14%) 100%);
  box-shadow: 0 -18px 40px rgba(0,0,0,.42);
  transform: translateY(24px);
  opacity: 0;
  transition: transform .22s ease, opacity .22s ease;
  padding: 15px 25px 35px 25px;
}

html[data-theme="light"] .dh-support-sheet-panel {
  background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%);
  box-shadow: 0 -18px 40px rgba(16, 19, 27, .16);
}

.dh-support-powered-by {
  font-size: 11px;
  font-weight: 600;
  opacity: .55;
}

.dh-support-sheet.is-open .dh-support-sheet-backdrop {
  opacity: 1;
}

.dh-support-sheet.is-open .dh-support-sheet-panel {
  transform: translateY(0);
  opacity: 1;
}

.dh-support-sheet-close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in oklab, var(--panel) 92%, transparent);
  color: var(--muted);
  cursor: pointer;
}

.dh-support-links .dh-support-sheet-close {
  margin-left: 6px;
}

.dh-support-sheet-close:hover {
  background: color-mix(in oklab, var(--panel-soft) 70%, transparent);
  color: var(--text);
}

.dh-support-sheet-close:focus-visible {
  outline: 2px solid color-mix(in oklab, #46a9ff 55%, transparent);
  outline-offset: 2px;
}

.dh-support-sheet-body {
  padding: 0;
}

.dh-support-sheet-topnav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 14px;
}

.dh-support-company-name {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.2px;
  margin-bottom: 10px;
}

.dh-support-company-lines {
  display: grid;
  gap: 6px;
}

.dh-support-company-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  color: color-mix(in oklab, var(--text) 88%, var(--muted));
  font-size: 13px;
  line-height: 1.35;
}

.dh-support-company-k {
  color: color-mix(in oklab, var(--text) 82%, var(--muted));
  font-weight: 800;
  white-space: nowrap;
}

.dh-support-company-contact {
  margin-top: 10px;
  font-size: 13px;
  color: color-mix(in oklab, var(--text) 84%, var(--muted));
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.dh-support-company-contact-sep {
  opacity: .65;
}

.dh-support-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 14px;
  padding-top: 0;
  font-size: 13px;
  font-weight: 800;
}

.dh-support-link {
  color: color-mix(in oklab, var(--text) 88%, var(--muted));
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 12px;
  transition: background .15s ease, color .15s ease;
}

.dh-support-link:hover {
  background: color-mix(in oklab, var(--panel-soft) 70%, transparent);
  color: var(--text);
}

.dh-support-layout {
  display: grid;
  grid-template-columns: minmax(320px, 1.15fr) 1px minmax(260px, .85fr) minmax(320px, 1fr);
  grid-template-rows: auto auto;
  gap: 0 26px;
  align-items: start;
}

.dh-support-company {
  grid-row: 1 / span 2;
}

.dh-support-divider {
  width: 1px;
  height: 100%;
  background: color-mix(in oklab, var(--line) 85%, transparent);
  opacity: .9;
  grid-row: 1 / span 2;
}

.dh-support-inquiry {
  grid-row: 1;
}

.dh-support-inquiry-title {
  font-size: 16px;
  font-weight: 900;
  letter-spacing: -.1px;
  margin: 2px 0 10px;
}

.dh-support-inquiry-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.4;
  color: color-mix(in oklab, var(--text) 86%, var(--muted));
}

.dh-support-inquiry-k {
  font-weight: 900;
  color: color-mix(in oklab, var(--text) 80%, var(--muted));
  white-space: nowrap;
}

.dh-support-inquiry-tel {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .2px;
  color: color-mix(in oklab, var(--text) 92%, #46a9ff 8%);
}

.dh-support-topnav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 2px;
  grid-row: 1;
}

.dh-support-topnav .dh-support-links {
  flex-wrap: nowrap;
}

.dh-support-topnav .dh-support-link {
  white-space: nowrap;
}

.dh-support-bottom-tel {
  grid-column: 3;
  grid-row: 2;
  align-self: end;
}

.dh-support-bottom-copyright {
  grid-column: 4;
  grid-row: 2;
  align-self: end;
  justify-self: end;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -.1px;
  color: color-mix(in oklab, var(--muted) 92%, var(--text));
  opacity: .72;
  pointer-events: none;
}

html[data-theme="light"] .dh-support-bottom-copyright {
  color: color-mix(in oklab, #304362 70%, #000);
  opacity: .6;
}

@media (max-width: 820px) {
  .dh-support-sheet-panel {
    max-height: min(82dvh, 620px);
    overflow: auto;
    padding: 18px 22px 22px;
    -webkit-overflow-scrolling: touch;
  }

  .dh-support-sheet-topnav {
    justify-content: flex-start;
  }

  .dh-support-links {
    justify-content: flex-start;
  }

  .dh-support-divider {
    display: none;
  }

  .dh-support-layout {
    position: relative;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 16px;
  }

  .dh-support-topnav {
    justify-content: flex-start;
    order: -1;
    padding-top: 0;
    padding-right: 52px;
  }

  .dh-support-topnav .dh-support-links {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    gap: 2px;
    width: 100%;
  }

  .dh-support-topnav .dh-support-link {
    flex: 0 1 auto;
    min-width: max-content;
    padding: 6px 7px;
    border-radius: 8px;
    font-size: 12px;
    letter-spacing: -.35px;
    line-height: 1;
    white-space: nowrap;
  }

  .dh-support-sheet-close {
    position: absolute;
    top: 0;
    right: 0;
    width: 36px;
    height: 36px;
    border-radius: 11px;
  }

  .dh-support-company,
  .dh-support-divider,
  .dh-support-inquiry,
  .dh-support-topnav,
  .dh-support-bottom-tel,
  .dh-support-bottom-copyright {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
  }

  .dh-support-bottom-copyright {
    justify-self: start;
  }

  .dh-support-company-name {
    margin-bottom: 10px;
    font-size: 20px;
  }

  .dh-support-company-line {
    grid-template-columns: auto 1fr;
    gap: 6px;
    font-size: 12px;
    line-height: 1.45;
  }

  .dh-support-company-v,
  .dh-support-inquiry-v {
    min-width: 0;
    word-break: break-word;
  }

  .dh-support-inquiry-title {
    margin-top: 0;
    font-size: 16px;
  }

  .dh-support-inquiry-line {
    font-size: 12px;
  }

  .dh-support-inquiry-tel {
    margin-top: 2px;
    font-size: 22px;
  }

  .dh-support-bottom-copyright {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 10px;
    font-size: 11px;
    line-height: 1.35;
  }
}

@media (max-width: 980px) and (orientation: landscape) {
  .dh-support-sheet-panel {
    max-height: calc(100dvh - 20px);
    overflow: auto;
    padding: 12px 18px 16px;
    -webkit-overflow-scrolling: touch;
  }

  .dh-support-layout {
    position: relative;
    grid-template-columns: minmax(240px, 1fr) 1px minmax(230px, .92fr);
    grid-template-rows: auto auto auto;
    gap: 10px 24px;
    align-items: start;
  }

  .dh-support-topnav {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-content: flex-end;
    padding: 0 42px 0 0;
  }

  .dh-support-topnav .dh-support-links {
    display: flex;
    flex: 1 1 auto;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 6px 12px;
  }

  .dh-support-topnav .dh-support-link {
    padding: 5px 3px;
    font-size: 12px;
    white-space: nowrap;
  }

  .dh-support-sheet-close {
    position: absolute;
    top: 0;
    right: 0;
    width: 34px;
    height: 34px;
    border-radius: 10px;
  }

  .dh-support-company {
    grid-column: 1;
    grid-row: 2 / span 2;
  }

  .dh-support-divider {
    display: block;
    grid-column: 2;
    grid-row: 2 / span 2;
  }

  .dh-support-inquiry {
    grid-column: 3;
    grid-row: 2;
  }

  .dh-support-bottom-tel {
    grid-column: 3;
    grid-row: 3;
    align-self: start;
  }

  .dh-support-bottom-copyright {
    grid-column: 1 / -1;
    grid-row: 4;
    justify-self: end;
    max-width: 100%;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px 10px;
    margin-top: 0;
    font-size: 11px;
  }

  .dh-support-company-name {
    margin-bottom: 8px;
    font-size: 18px;
  }

  .dh-support-company-line,
  .dh-support-inquiry-line {
    font-size: 12px;
    line-height: 1.35;
  }

  .dh-support-company-lines {
    gap: 5px;
  }

  .dh-support-company-v,
  .dh-support-inquiry-v {
    min-width: 0;
    word-break: break-word;
  }

  .dh-support-inquiry-title {
    margin: 0 0 8px;
    font-size: 16px;
  }

  .dh-support-inquiry-tel {
    margin-top: 8px;
    font-size: 22px;
  }
}

.dh-support-page {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 22px 16px 60px;
}

.dh-support-card {
  border: 1px solid color-mix(in oklab, var(--line) 78%, transparent);
  border-radius: 22px;
  background: color-mix(in oklab, var(--panel) 88%, transparent);
  box-shadow: 0 18px 42px rgba(0,0,0,.18);
  padding: 22px;
  width: 100%;
  min-height: calc(100vh - var(--dh-head-height) - 110px);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

html[data-theme="light"] .dh-support-card {
  box-shadow: 0 18px 42px rgba(16, 19, 27, .10);
}

.dh-support-card h1 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -.2px;
}

.dh-support-card p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.dh-support-content {
  border: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
  border-radius: 16px;
  background: color-mix(in oklab, var(--panel-soft) 72%, transparent);
  padding: 16px;
  color: color-mix(in oklab, var(--text) 92%, var(--muted));
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

@media (min-width: 980px) {
  .dh-support-page {
    padding: 26px 24px 70px;
  }

  .dh-support-card {
    padding: 26px 26px 24px;
    min-height: calc(100vh - var(--dh-head-height) - 120px);
  }
}