.page-contact {
  --ct-measure: 720px;
  --ct-card-bg: var(--parchment-100);
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding: 16px 0 14px;
  border-bottom: 1px solid var(--line);
}
.page-contact .crumbs__item {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate-500);
}
.page-contact .crumbs__item a {
  color: var(--slate-500);
  text-decoration: none;
}
.page-contact .crumbs__item a:hover,
.page-contact .crumbs__item a:focus-visible {
  color: var(--gold-900);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  background-color: var(--crimson-700);
  background-image:
    repeating-linear-gradient(90deg, rgba(231, 200, 115, 0.08) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(180deg, rgba(231, 200, 115, 0.06) 0 1px, transparent 1px 64px);
  color: var(--cream-50);
  border-bottom: 1px solid var(--line-gold);
  padding: 42px 0 40px;
}
.page-contact .ct-hero__inner {
  display: grid;
  gap: 28px;
}
.page-contact .ct-hero__kicker {
  color: var(--gold-300);
}
.page-contact .ct-hero__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.6vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--gold-300);
  background-image: linear-gradient(180deg, var(--gold-300) 0%, var(--gold-600) 62%, var(--gold-900) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-contact .ct-hero__text {
  max-width: 34em;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(251, 247, 239, 0.87);
}
.page-contact .ct-hero__facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-cream);
  border-left: 1px solid var(--line-cream);
}
.page-contact .ct-fact {
  padding: 12px 14px 14px;
  border-right: 1px solid var(--line-cream);
  border-bottom: 1px solid var(--line-cream);
}
.page-contact .ct-fact dt {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}
.page-contact .ct-fact dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

/* ---------- 章节容器 ---------- */
.page-contact .ct-section {
  padding: 48px 0;
}
.page-contact .ct-section--parch {
  background-color: var(--parchment-100);
}
.page-contact .ct-section .chapter {
  margin-bottom: 20px;
}
.page-contact .ct-sub {
  max-width: var(--ct-measure);
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-500);
}

/* ---------- 渠道卡 ---------- */
.page-contact .ct-figure {
  margin: 26px 0 0;
}
.page-contact .ct-cards {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}
.page-contact .ct-card {
  background-color: var(--ct-card-bg);
  border: 1px solid var(--crimson-700);
  padding: 22px 20px 26px;
  min-width: 0;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  border-color: var(--gold-600);
}
.page-contact .ct-card__kicker {
  color: var(--gold-900);
}
.page-contact .ct-card__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 21px;
  letter-spacing: 0.02em;
  color: var(--ink-900);
}
.page-contact .ct-card__value {
  margin: 16px 0 10px;
  padding: 10px 12px;
  background-color: var(--cream-50);
  border-left: 2px solid var(--gold-600);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--crimson-700);
  overflow-wrap: anywhere;
  user-select: all;
}
.page-contact .ct-card__hint {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-500);
}
.page-contact .ct-card__sub {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-900);
}
.page-contact .ct-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}
.page-contact .ct-list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.72;
}
.page-contact .ct-list li + li {
  margin-top: 7px;
}
.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 7px;
  height: 1px;
  background-color: var(--gold-600);
}
.page-contact .ct-list--quiet {
  margin-top: 6px;
}
.page-contact .ct-list--quiet li {
  font-size: 14px;
  color: var(--slate-500);
}
.page-contact .ct-list--quiet li::before {
  background-color: var(--line-strong);
}

.page-contact .ct-fold {
  margin-top: 20px;
  border-top: 1px solid var(--line);
}
.page-contact .ct-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold-900);
}
.page-contact .ct-fold > summary::-webkit-details-marker {
  display: none;
}
.page-contact .ct-fold > summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold-600);
}
.page-contact .ct-fold[open] > summary::after {
  content: "－";
}
.page-contact .ct-fold > summary:focus-visible {
  outline: 2px solid var(--gold-600);
  outline-offset: 2px;
}

/* ---------- 正文与步骤 ---------- */
.page-contact .ct-prose {
  max-width: var(--ct-measure);
}
.page-contact .ct-prose p {
  font-size: 16px;
  line-height: 1.78;
}
.page-contact .ct-prose a {
  color: var(--crimson-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .ct-prose a:hover,
.page-contact .ct-prose a:focus-visible {
  color: var(--gold-900);
}
.page-contact .ct-steps {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}
.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .ct-step__no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-900);
}
.page-contact .ct-steps p {
  margin: 0;
}

/* ---------- 品牌与备案 ---------- */
.page-contact .ct-register {
  background-color: var(--ink-900);
  color: var(--cream-50);
}
.page-contact .ct-register .chapter__no {
  color: var(--gold-300);
}
.page-contact .ct-register .chapter__title {
  color: var(--cream-50);
}
.page-contact .ct-register__list {
  max-width: 900px;
  margin: 24px 0 0;
  border-top: 1px solid var(--line-cream);
}
.page-contact .ct-register__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-cream);
}
.page-contact .ct-register__row dt {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-300);
}
.page-contact .ct-register__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
  color: var(--cream-50);
}
.page-contact .ct-register__row--icp dd {
  font-size: 17px;
  letter-spacing: 0.08em;
  color: var(--gold-300);
}
.page-contact .ct-register__source {
  max-width: var(--ct-measure);
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(251, 247, 239, 0.72);
}
.page-contact .ct-register__source a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 办公地址 ---------- */
.page-contact .ct-office__inner {
  display: grid;
  gap: 28px;
}
.page-contact .ct-office__media {
  min-width: 0;
}
.page-contact .ct-office__media .frame {
  margin: 0;
}
.page-contact .ct-office__media .frame__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .ct-locator {
  position: relative;
  width: 72px;
  height: 72px;
  margin-top: 18px;
  border: 1px solid var(--gold-600);
  display: grid;
  place-items: center;
}
.page-contact .ct-locator::before {
  content: "";
  position: absolute;
  inset: 13px;
  border: 1px solid var(--line-gold);
  transform: rotate(45deg);
}
.page-contact .ct-locator__ring {
  position: relative;
  width: 8px;
  height: 8px;
  background-color: var(--crimson-500);
}
.page-contact .ct-office__addr {
  margin: 16px 0 18px;
  padding-left: 12px;
  border-left: 2px solid var(--gold-600);
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--ink-900);
}
.page-contact .ct-office__text p {
  font-size: 16px;
  line-height: 1.78;
}
.page-contact .ct-office__text a {
  color: var(--crimson-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .ct-office__text a:hover,
.page-contact .ct-office__text a:focus-visible {
  color: var(--gold-900);
}

/* ---------- 反馈清单 ---------- */
.page-contact .ct-checklist {
  margin: 24px 0;
  border-top: 1px solid var(--line-strong);
}
.page-contact .ct-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .ct-check__box {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--umber-700);
  background-color: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.page-contact .ct-check__box:checked {
  background-color: var(--teal-600);
  border-color: var(--teal-600);
}
.page-contact .ct-check__box:checked::after {
  content: "";
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--cream-50);
  border-bottom: 2px solid var(--cream-50);
  transform: rotate(-45deg) translateY(-1px);
}
.page-contact .ct-check__box:focus-visible {
  outline: 2px solid var(--gold-600);
  outline-offset: 2px;
}
.page-contact .ct-check__label {
  font-size: 15px;
  line-height: 1.72;
  cursor: pointer;
}
.page-contact .ct-check__label strong {
  font-weight: 700;
  color: var(--gold-900);
}
.page-contact .ct-ready {
  display: none;
  margin: 18px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--teal-600);
  font-size: 14px;
  line-height: 1.7;
  color: var(--teal-600);
}
.page-contact .ct-checklist:has(.ct-check__box:checked) .ct-ready {
  display: block;
}

/* ---------- 底部横带 ---------- */
.page-contact .ct-rail {
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
}
.page-contact .ct-rail .index-label {
  color: var(--slate-500);
}
.page-contact .ct-rail .ribbon {
  margin-top: 16px;
}
.page-contact .ct-rail .ribbon__item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-width: 210px;
  padding: 16px 20px;
  background-color: var(--cream-50);
  border: 1px solid var(--line-strong);
  color: var(--fg);
  text-decoration: none;
  font-size: 16px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-contact .ct-rail .ribbon__item .data-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-500);
}
.page-contact .ct-rail .ribbon__item:hover,
.page-contact .ct-rail .ribbon__item:focus-visible {
  border-color: var(--gold-600);
  color: var(--crimson-700);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 860px) {
  .page-contact .ct-hero {
    padding: 70px 0 58px;
  }
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 52px;
    align-items: end;
  }
  .page-contact .ct-hero__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-section {
    padding: 74px 0;
  }
  .page-contact .ct-cards {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 24px;
  }
  .page-contact .ct-card {
    padding: 30px 28px 34px;
  }
  .page-contact .ct-card__value {
    font-size: 17px;
  }
  .page-contact .ct-register__row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
  .page-contact .ct-office__inner {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    gap: 56px;
    align-items: start;
  }
  .page-contact .ct-office .chapter {
    margin-top: 0;
  }
  .page-contact .ct-office__addr {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-rail .ribbon__item {
    transition: none;
  }
}