.page-contact {
  --ct-line: rgba(159, 201, 192, .16);
  --ct-line-strong: rgba(159, 201, 192, .34);
  --ct-clay-shadow: rgba(168, 92, 60, .24);
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-crumb-wrap {
  padding-top: clamp(20px, 3vw, 32px);
}

/* ---------- 信笺首屏 ---------- */
.page-contact .ct-letter {
  position: relative;
  padding: clamp(28px, 5vw, 60px) 0 clamp(36px, 6vw, 76px);
}

.page-contact .ct-letter__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}

.page-contact .ct-letter__body {
  min-width: 0;
}

.page-contact .ct-letter__eyebrow {
  margin: 0 0 16px;
}

.page-contact .ct-title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  color: var(--paper);
  line-height: 1.04;
}

.page-contact .ct-lede {
  margin: 0 0 clamp(28px, 4vw, 40px);
  max-width: 46ch;
  color: var(--paper);
  opacity: .88;
}

.page-contact .ct-routes {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-routes__item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-routes__mark {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  background: var(--clay);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-routes__item:hover .ct-routes__mark,
.page-contact .ct-routes__item:focus-within .ct-routes__mark {
  background: var(--cyan);
  transform: translateY(-1px);
}

.page-contact .ct-routes__name {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-routes__desc {
  margin: 0;
  color: var(--mist);
}

/* ---------- 联系卡 ---------- */
.page-contact .ct-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--ct-line-strong);
  background: var(--panel);
  box-shadow: 10px 12px 0 var(--ct-clay-shadow);
  padding: clamp(24px, 4vw, 32px) clamp(20px, 3vw, 28px) clamp(26px, 4vw, 34px);
}

.page-contact .ct-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .13;
  filter: saturate(.65) contrast(1.05);
  z-index: -1;
}

.page-contact .ct-card__inner {
  position: relative;
}

.page-contact .ct-card__tag {
  margin: 0 0 10px;
}

.page-contact .ct-card__lead {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .ct-card__list {
  margin: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-card__row {
  padding: 15px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-card__row dt {
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .ct-card__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-card__value--gold {
  color: var(--gold);
  font-size: 16px;
}

.page-contact .ct-card__foot {
  margin: 20px 0 0;
  color: var(--mist);
}

.page-contact .ct-card__foot a {
  color: var(--cyan);
}

/* ---------- 区块通用 ---------- */
.page-contact .ct-section {
  padding: clamp(44px, 6vw, 84px) 0;
  border-top: 1px solid var(--ct-line);
}

/* ---------- 自查三步 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-step {
  background: var(--ink);
  padding: clamp(24px, 3vw, 32px) clamp(20px, 2.6vw, 28px) clamp(28px, 3vw, 36px);
}

.page-contact .ct-step__no {
  display: block;
  margin-bottom: 18px;
  font-size: 42px;
  line-height: 1;
  color: var(--gold);
  opacity: .82;
}

.page-contact .ct-step__title {
  margin: 0 0 10px;
  color: var(--paper);
}

.page-contact .ct-step__text {
  margin: 0;
  color: var(--mist);
}

/* ---------- 客服邮箱 ---------- */
.page-contact .ct-mail {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  border: 1px solid var(--ct-line-strong);
  background: var(--panel);
  padding: clamp(24px, 4vw, 44px);
  min-width: 0;
}

.page-contact .ct-mail__main {
  min-width: 0;
}

.page-contact .ct-mail__main .t-body {
  margin: 0 0 22px;
  color: var(--paper);
}

.page-contact .ct-mail__addr {
  margin: 0;
  font-size: clamp(17px, 2.7vw, 26px);
  line-height: 1.25;
  color: var(--gold);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-mail__hint {
  margin: 12px 0 0;
  color: var(--mist);
}

.page-contact .ct-mail__tips {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
  align-self: start;
}

.page-contact .ct-mail__tip {
  display: grid;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-mail__tip-k {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
  font-family: var(--font-mono);
}

.page-contact .ct-mail__tip .t-small {
  color: var(--mist);
}

/* ---------- 电话与来信 ---------- */
.page-contact .ct-addr {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .ct-addr__text {
  min-width: 0;
}

.page-contact .ct-addr__block {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-addr__block .annotation {
  margin: 0 0 8px;
}

.page-contact .ct-addr__value {
  margin: 0 0 8px;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.4;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-addr__note {
  margin: 0;
  color: var(--mist);
}

.page-contact .ct-addr__para {
  margin: 0;
  color: var(--paper);
  opacity: .88;
}

.page-contact .ct-map {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin-top: clamp(24px, 3vw, 34px);
  color: var(--moss);
}

.page-contact .ct-map__lines path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  stroke-linecap: square;
}

.page-contact .ct-map__dots circle {
  fill: var(--gold);
}

.page-contact .ct-addr__media {
  min-width: 0;
}

.page-contact .ct-addr__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 合作与授权 ---------- */
.page-contact .ct-coop__intro {
  margin: 0 0 clamp(28px, 4vw, 40px);
  max-width: 68ch;
  color: var(--paper);
  opacity: .88;
}

.page-contact .ct-coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-coop__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 16px;
  background: var(--ink);
  padding: clamp(22px, 3vw, 30px) clamp(20px, 2.6vw, 28px);
}

.page-contact .ct-coop__no {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  background: var(--clay);
  color: var(--ink);
  font-size: 12px;
  line-height: 1;
}

.page-contact .ct-coop__item-title {
  margin: 0 0 8px;
  color: var(--paper);
}

.page-contact .ct-coop__item-text {
  margin: 0;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */
.page-contact .ct-fold-group {
  margin-top: clamp(28px, 4vw, 40px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-fold {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-fold summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-fold summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  flex: none;
}

.page-contact .ct-fold[open] summary::after {
  content: "–";
}

.page-contact .ct-fold summary:hover {
  color: var(--cyan);
}

.page-contact .ct-fold summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-contact .ct-fold__body {
  margin: 0 0 20px;
  max-width: 66ch;
  color: var(--mist);
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-pace {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-pace__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-pace__cat {
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .ct-pace__time {
  font-size: 20px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-contact .ct-pace__note {
  margin: 0;
  color: var(--mist);
}

/* ---------- 收尾横幅 ---------- */
.page-contact .ct-closer {
  margin-top: clamp(40px, 6vw, 76px);
  background: var(--panel);
  border-top: 1px solid var(--ct-line-strong);
  border-bottom: 1px solid var(--ct-line-strong);
}

.page-contact .ct-closer__tag {
  margin: 0 0 14px;
}

.page-contact .ct-closer__title {
  margin: 0 0 16px;
  color: var(--paper);
  max-width: 22ch;
}

.page-contact .ct-closer__text {
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: 62ch;
  color: var(--paper);
  opacity: .85;
}

.page-contact .ct-closer__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-contact .ct-closer__link {
  color: var(--cyan);
  font-size: 15px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-coop__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-pace__row {
    grid-template-columns: 200px 140px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-letter__grid {
    grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-contact .ct-card {
    order: -1;
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .ct-mail {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-contact .ct-addr {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-coop__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}