/* =========================================================
   page-contact —— 联系与咨询
   ========================================================= */
.page-contact {
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 面包屑上沿 ---------- */
.page-contact .contact-top {
  padding: 18px 0 4px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 22px 0 0;
  background-image: linear-gradient(158deg, rgba(30, 90, 70, 0) 0 58%, rgba(19, 52, 42, 0.9) 58% 100%);
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lime) 0 72px, var(--rule) 72px 100%);
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: 26px;
  padding-bottom: 34px;
}

.page-contact .contact-hero__lead {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .contact-hero__title {
  margin: 0;
  font-size: clamp(2.05rem, 8.4vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 48ch;
}

.page-contact .contact-hero__meta {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .contact-hero__art {
  margin: 0;
}

/* ---------- 区块标题 ---------- */
.page-contact .contact-section-head {
  display: grid;
  gap: 8px;
  padding-bottom: 22px;
}

.page-contact .contact-section-head .h2 {
  margin: 0;
}

/* ---------- 联系通道 ---------- */
.page-contact .contact-channels {
  padding: 42px 0 0;
}

.page-contact .contact-channels__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-channel {
  display: grid;
  gap: 7px;
  align-content: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-channel__index {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .contact-channel__title {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__note {
  margin: 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 联系地址 ---------- */
.page-contact .contact-address {
  padding: 44px 0 46px;
}

.page-contact .contact-address__grid {
  display: grid;
  gap: 24px;
}

.page-contact .contact-address__body {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .contact-address__body .h2 {
  margin: 0;
}

.page-contact .contact-address__place {
  margin: 0;
  font-size: clamp(1.08rem, 4.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--lime);
}

.page-contact .contact-address__desc {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-address__art {
  margin: 0;
}

.page-contact .contact-address__art .media-frame__caption {
  color: var(--mist);
}

/* ---------- 来信要件（奶油纸白分区） ---------- */
.page-contact .contact-brief {
  background: var(--paper);
  color: var(--carbon);
  padding: 46px 0 52px;
}

.page-contact .contact-brief .eyebrow {
  color: var(--paper-mist);
}

.page-contact .contact-brief .h2 {
  margin: 0;
  color: var(--carbon);
}

.page-contact .contact-brief__head {
  display: grid;
  gap: 10px;
  padding-bottom: 24px;
}

.page-contact .contact-brief__lede {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-mist);
}

.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .brief-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--paper-rule);
}

.page-contact .brief-item:last-child {
  border-bottom: 1px solid var(--paper-rule);
}

.page-contact .brief-item__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--rust);
  padding-top: 4px;
}

.page-contact .brief-item__body {
  display: grid;
  gap: 5px;
}

.page-contact .brief-item__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--carbon);
}

.page-contact .brief-item__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-mist);
}

/* ---------- 可咨询与可协作事项 ---------- */
.page-contact .contact-scope {
  padding: 46px 0 0;
}

.page-contact .contact-scope__grid {
  display: grid;
  border-top: 1px solid var(--rule);
}

.page-contact .scope-card {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .scope-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.page-contact .scope-card__desc {
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.74;
  color: var(--mist);
}

.page-contact .scope-card__route {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-soft);
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-selfhelp {
  padding: 46px 0 54px;
}

.page-contact .contact-selfhelp__list {
  border-top: 1px solid var(--rule);
}

.page-contact .contact-selfhelp__list .expand {
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-expand .expand__toggle {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-contact .contact-expand__q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}

.page-contact .contact-expand .expand__panel {
  padding: 0 0 20px 24px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-expand .expand__panel p {
  margin: 0 0 8px;
}

.page-contact .contact-expand .expand__panel a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--edge);
}

.page-contact .contact-expand .expand__panel a:hover {
  border-bottom-color: var(--lime);
}

.page-contact .contact-selfhelp__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 26px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: 44px;
    align-items: end;
    padding-bottom: 48px;
  }

  .page-contact .contact-channels__list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-channel {
    padding: 26px 26px 30px;
  }

  .page-contact .contact-channel:first-child {
    padding-left: 0;
  }

  .page-contact .contact-channel:last-child {
    padding-right: 0;
  }

  .page-contact .contact-channel:not(:last-child) {
    border-right: 1px solid var(--rule);
  }

  .page-contact .contact-address__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    column-gap: 48px;
    align-items: center;
  }

  .page-contact .contact-scope__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .scope-card {
    padding: 26px 26px 30px 0;
    border-bottom: 1px solid var(--rule);
  }

  .page-contact .scope-card:not(:last-child) {
    border-right: 1px solid var(--rule);
  }

  .page-contact .scope-card:not(:first-child) {
    padding-left: 26px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1080px) {
  .page-contact .contact-hero {
    padding-top: 42px;
  }

  .page-contact .contact-hero__title {
    font-size: clamp(3rem, 4.6vw, 4.3rem);
  }

  .page-contact .contact-channels {
    padding-top: 52px;
  }

  .page-contact .contact-address {
    padding: 56px 0 58px;
  }

  .page-contact .contact-brief {
    padding: 58px 0 62px;
  }

  .page-contact .contact-scope {
    padding-top: 58px;
  }

  .page-contact .contact-selfhelp {
    padding: 58px 0 68px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel,
  .page-contact .scope-card,
  .page-contact .contact-expand .expand__toggle {
    transition: none;
  }
}