.page-contact {
  --cc-line: rgba(11, 42, 74, .14);
  --cc-line-strong: rgba(11, 42, 74, .32);
  --cc-invert-text: rgba(247, 248, 246, .72);
  padding-bottom: 48px;
}

/* ---------- 面包屑与页首 ---------- */
.page-contact .breadcrumb {
  padding: 20px 0 0;
}

.page-contact .cc-hero {
  padding: 24px 0 28px;
}

.page-contact .cc-hero__kicker {
  margin: 0 0 16px;
  color: var(--orange-text);
}

.page-contact .cc-hero__title {
  margin: 0 0 18px;
  font-size: 40px;
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--deep);
}

.page-contact .cc-hero__lede {
  max-width: 62ch;
  margin: 0 0 26px;
  color: var(--ink);
}

.page-contact .cc-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  padding: 16px 0 0;
  border-top: 1px solid var(--cc-line);
}

.page-contact .cc-anchors__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  font-size: 13px;
  color: var(--deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .cc-anchors__link:hover {
  color: var(--orange-text);
  border-bottom-color: var(--orange);
}

.page-contact .cc-anchors__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gold-text);
}

/* ---------- 渠道卡区 ---------- */
.page-contact .cc-channels {
  position: relative;
  margin: 0 0 8px;
  overflow: hidden;
  background: var(--anchor);
  border: 1px solid var(--deep);
}

.page-contact .cc-channels__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .cc-channels__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .5;
}

.page-contact .cc-channels__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(6, 26, 47, .95) 0%, rgba(11, 42, 74, .87) 55%, rgba(6, 26, 47, .97) 100%);
}

.page-contact .cc-channels__inner {
  position: relative;
  z-index: 1;
  padding: 30px 20px 34px;
}

.page-contact .cc-channels__idx {
  margin: 0 0 12px;
  color: var(--orange-mist);
}

.page-contact .cc-channels__title {
  margin: 0 0 12px;
  font-size: 26px;
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--pearl);
}

.page-contact .cc-channels__note {
  max-width: 54ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cc-invert-text);
}

.page-contact .cc-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 24px 20px 24px;
  background: rgba(247, 248, 246, .97);
  border: 1px solid var(--cc-line-strong);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 2px;
  background: var(--gold);
}

.page-contact .channel-card--mail::before { background: var(--orange); }
.page-contact .channel-card--phone::before { background: var(--cyan); }

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--orange);
}

.page-contact .channel-card__label {
  margin: 0;
  color: var(--graphite);
}

.page-contact .channel-card__num {
  margin-right: .7em;
  font-family: var(--font-mono);
  letter-spacing: .04em;
  color: var(--gold-text);
  transition: color var(--dur) var(--ease);
}

.page-contact .channel-card:hover .channel-card__num {
  color: var(--orange-text);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(19px, 5.4vw, 28px);
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--deep);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-card__value {
  font-size: clamp(26px, 7vw, 34px);
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-contact .channel-card__addr {
  display: grid;
  gap: 2px;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: .02em;
  color: var(--deep);
}

.page-contact .channel-card__addr span {
  padding-left: 12px;
  border-left: 1px solid var(--cc-line-strong);
}

.page-contact .channel-card__addr span:last-child {
  color: var(--orange-text);
}

.page-contact .copy-btn {
  align-self: flex-start;
  margin-top: auto;
  padding: 8px 14px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--deep);
  background: none;
  border: 1px solid var(--cc-line-strong);
  border-radius: 0;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .copy-btn:hover {
  color: var(--orange-text);
  border-color: var(--orange);
}

.page-contact .copy-btn[data-copied="true"] {
  color: var(--pearl);
  background: var(--deep);
  border-color: var(--deep);
}

/* ---------- 通用区块 ---------- */
.page-contact .cc-block {
  padding: 34px 0 42px;
  border-top: 1px solid var(--cc-line);
}

.page-contact .cc-block--mist {
  padding: 30px 20px 34px;
  background: var(--mist);
  border-top: 1px solid var(--cc-line-strong);
}

.page-contact .cc-block__head {
  margin-bottom: 22px;
}

.page-contact .cc-block__idx {
  margin: 0 0 10px;
  color: var(--orange-text);
}

.page-contact .cc-block__title {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--deep);
}

.page-contact .cc-prepare__lede {
  max-width: 60ch;
  margin: 14px 0 0;
  font-size: 16px;
  color: var(--ink);
}

/* ---------- 用途边界 ---------- */
.page-contact .cc-boundary {
  display: grid;
  gap: 26px;
}

.page-contact .cc-boundary__main {
  max-width: 62ch;
}

.page-contact .cc-boundary__main p {
  margin: 0 0 18px;
}

.page-contact .cc-boundary__main p:last-child {
  margin-bottom: 0;
}

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

.page-contact .cc-scope__item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--cc-line);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .cc-scope__mark {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-text);
}

.page-contact .cc-scope__item--no .cc-scope__mark {
  color: var(--graphite);
}

.page-contact .cc-scope__item--no {
  color: var(--graphite);
}

/* ---------- 时效条 ---------- */
.page-contact .cc-strip {
  margin: 0 0 26px;
}

.page-contact .cc-strip .data-strip__item {
  padding: 14px 0;
}

.page-contact .cc-strip__label {
  margin: 0 0 8px;
  color: var(--graphite);
}

.page-contact .cc-strip__value {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--deep);
}

.page-contact .cc-strip__unit {
  margin-left: .5em;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-contact .cc-strip__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .cc-timing__text {
  max-width: 66ch;
}

.page-contact .cc-timing__text p {
  margin: 0 0 16px;
}

.page-contact .cc-timing__text p:last-child {
  margin-bottom: 0;
}

/* ---------- 对接前准备 ---------- */
.page-contact .cc-prepare__grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 24px;
  border-top: 1px solid var(--cc-line-strong);
}

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

.page-contact .cc-prepare__item .disclosure__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .cc-prepare__item .disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-contact .cc-prepare__item .disclosure__summary:hover {
  color: var(--orange-text);
}

.page-contact .cc-prepare__hint {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--graphite);
}

.page-contact .cc-prepare__item[open] .disclosure__summary {
  color: var(--orange-text);
}

.page-contact .cc-prepare__item[open] .cc-prepare__hint {
  color: var(--orange-text);
}

.page-contact .cc-prepare__item .disclosure__body {
  max-width: 64ch;
  padding: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .cc-prepare__item .disclosure__body p {
  margin: 0 0 12px;
}

.page-contact .cc-prepare__item .disclosure__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 关于本站 ---------- */
.page-contact .cc-about__grid {
  display: grid;
  gap: 30px;
}

.page-contact .cc-about__title {
  margin: 0 0 18px;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--deep);
}

.page-contact .cc-about__prose {
  max-width: 62ch;
}

.page-contact .cc-about__prose p {
  margin: 0 0 16px;
}

.page-contact .cc-about__prose p:last-child {
  margin-bottom: 0;
}

.page-contact .cc-about__icp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin: 24px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--cc-line-strong);
}

.page-contact .cc-about__icp .index-label {
  margin: 0;
  color: var(--graphite);
}

.page-contact .cc-about__icp-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--gold-text);
}

.page-contact .cc-about__media {
  margin: 0;
}

/* ---------- 收尾刻度线 ---------- */
.page-contact .cc-tail {
  display: flex;
  align-items: center;
  padding: 52px 0 24px;
}

.page-contact .cc-tail__tick {
  flex: 1 1 auto;
  height: 10px;
  min-width: 60px;
  background-image: repeating-linear-gradient(to right, var(--cc-line-strong) 0 1px, transparent 1px 12px);
  background-repeat: repeat-x;
  background-size: 12px 100%;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-contact .cc-channels__inner {
    padding: 38px 36px 42px;
  }

  .page-contact .cc-block__title,
  .page-contact .cc-about__title {
    font-size: 30px;
  }

  .page-contact .cc-boundary {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: start;
  }

  .page-contact .cc-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .cc-strip .data-strip__item {
    padding: 14px 24px 14px 0;
  }

  .page-contact .cc-prepare__grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 48px;
  }

  .page-contact .cc-about__grid {
    grid-template-columns: 6fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .cc-about__media {
    margin-top: 36px;
  }
}

@media (min-width: 1000px) {
  .page-contact {
    padding-bottom: 72px;
  }

  .page-contact .cc-hero {
    padding: 48px 0 36px;
  }

  .page-contact .cc-hero__title {
    font-size: 72px;
  }

  .page-contact .cc-channels__inner {
    padding: 52px 56px 56px;
  }

  .page-contact .cc-channels__title {
    font-size: 32px;
  }

  .page-contact .cc-cards {
    grid-template-columns: 5fr 3fr 3fr;
    gap: 16px;
    margin-top: 32px;
  }

  .page-contact .channel-card {
    padding: 28px 24px 26px;
  }

  .page-contact .cc-block {
    padding: 46px 0 56px;
  }

  .page-contact .cc-block--mist {
    padding: 40px 48px 46px;
  }

  .page-contact .cc-block__title,
  .page-contact .cc-about__title {
    font-size: 32px;
  }

  .page-contact .cc-tail {
    padding: 72px 0 32px;
  }
}