.page-contact {
  color: var(--body-copy);
}

.page-contact .eyebrow {
  display: inline-block;
  margin-bottom: 14px;
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding-top: 20px;
}
.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-contact .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}
.page-contact .breadcrumb-current {
  color: var(--cyan-soft);
}
.page-contact .crumb-sep {
  color: var(--line);
  margin-right: 4px;
}

/* 正文链接 */
.page-contact .prose a,
.page-contact .coop-card a,
.page-contact .stand-foot a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-contact .prose a:hover,
.page-contact .coop-card a:hover,
.page-contact .stand-foot a:hover,
.page-contact .prose a:focus-visible,
.page-contact .coop-card a:focus-visible,
.page-contact .stand-foot a:focus-visible {
  color: var(--chalk);
  border-bottom-color: var(--cyan);
  outline: none;
}

/* 首屏 */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: 26px 0 40px;
  border-bottom: 2px solid var(--line);
}
.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7.6vw, 52px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--chalk);
  max-width: 15ch;
}
.page-contact .contact-hero__lead {
  margin: 0 0 20px;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.78;
}
.page-contact .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-contact .hero-meta span {
  position: relative;
  padding-left: 14px;
}
.page-contact .hero-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--signal);
}
.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(56, 242, 206, .25);
  pointer-events: none;
}

/* 渠道卡片 */
.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 30px;
}
.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
  padding: 18px 18px 20px;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}
.page-contact .channel-card:hover {
  transform: translate(3px, 3px);
  box-shadow: 9px 9px 0 rgba(0, 0, 0, .5);
}
.page-contact .channel-card__index {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--cyan);
}
.page-contact .channel-card__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
}
.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}
.page-contact .channel-card__value--addr {
  font-size: 13px;
  line-height: 1.75;
  color: var(--chalk);
}
.page-contact .channel-card__note {
  margin: 14px 0 18px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}
.page-contact .channel-card__foot {
  margin-top: auto;
}
.page-contact .channel-card .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}
.page-contact .channel-card .copy-btn:hover,
.page-contact .channel-card .copy-btn:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}
.page-contact .channels-footnote {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}
.page-contact .channels-footnote::before {
  content: "";
  flex: 0 0 28px;
  width: 28px;
  height: 2px;
  background: var(--signal);
}

/* 纠错与查档 */
.page-contact .topic-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}
.page-contact .topic-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-soft);
}
.page-contact .topic-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-contact .topic-figure .img-cap {
  margin: 0;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--mist);
}
.page-contact .topic-body p {
  margin: 0 0 1.1em;
  font-size: 15px;
  line-height: 1.8;
}
.page-contact .topic-body p:last-child {
  margin-bottom: 0;
}

/* 合作 */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 26px;
}
.page-contact .coop-card {
  border: 2px solid var(--line);
  border-top: 6px solid var(--pitch);
  background: var(--ink-2);
  padding: 22px 20px 24px;
}
.page-contact .coop-card h3,
.page-contact .checklist h3,
.page-contact .qtype h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--chalk);
}
.page-contact .coop-card p {
  margin: 0 0 1em;
  font-size: 15px;
  line-height: 1.8;
}
.page-contact .coop-card p:last-child {
  margin-bottom: 0;
}

/* 提交清单与问题类型 */
.page-contact .brief-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}
.page-contact .checklist,
.page-contact .qtype {
  border: 2px solid var(--line);
  background: var(--ink-2);
  padding: 22px 20px;
  box-shadow: var(--shadow-soft);
}
.page-contact .check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
  cursor: pointer;
}
.page-contact .check-item:last-of-type {
  border-bottom: none;
}
.page-contact .check-item:has(.check-input:checked) .check-text {
  color: var(--chalk);
}
.page-contact .check-input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 2px solid var(--line);
  background: var(--ink);
  position: relative;
  cursor: pointer;
  transition: border-color .16s var(--ease);
}
.page-contact .check-input:checked {
  border-color: var(--cyan);
}
.page-contact .check-input:checked::after {
  content: "";
  position: absolute;
  inset: 2px;
  background: var(--cyan);
}
.page-contact .check-input:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}
.page-contact .check-status {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-contact .check-status__ready {
  display: none;
  color: var(--signal);
}
.page-contact .checklist:has(.check-input:checked):not(:has(.check-input:not(:checked))) .check-status__ready {
  display: inline;
}
.page-contact .checklist:has(.check-input:checked):not(:has(.check-input:not(:checked))) .check-status__pending {
  display: none;
}

.page-contact .qtype {
  position: relative;
}
.page-contact .qtype-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.page-contact .qtype-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-contact .qtype-tab {
  padding: 8px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}
.page-contact .qtype-tab:hover {
  color: var(--chalk);
  border-color: var(--cyan-soft);
}
.page-contact .qtype-radio:focus-visible ~ .qtype-tabs {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}
.page-contact #qt-correct:checked ~ .qtype-tabs [for="qt-correct"],
.page-contact #qt-archive:checked ~ .qtype-tabs [for="qt-archive"],
.page-contact #qt-coop:checked ~ .qtype-tabs [for="qt-coop"],
.page-contact #qt-biz:checked ~ .qtype-tabs [for="qt-biz"] {
  background: var(--pitch);
  color: var(--chalk);
  border-color: var(--cyan);
}
.page-contact .qtype-panels {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.page-contact .qtype-panel {
  display: none;
}
.page-contact #qt-correct:checked ~ .qtype-panels #panel-correct,
.page-contact #qt-archive:checked ~ .qtype-panels #panel-archive,
.page-contact #qt-coop:checked ~ .qtype-panels #panel-coop,
.page-contact #qt-biz:checked ~ .qtype-panels #panel-biz {
  display: block;
}
.page-contact .qtype-panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-copy);
}
.page-contact .qtype-tag {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

/* 站务信息 */
.page-contact .stand-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 24px 0 0;
  padding: 24px 0;
  border-top: 2px solid var(--pitch);
  border-bottom: 2px solid var(--pitch);
}
.page-contact .stand-item {
  min-width: 0;
}
.page-contact .stand-item dt {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
}
.page-contact .stand-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--chalk);
  overflow-wrap: anywhere;
}
.page-contact .stand-foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--mist);
}

/* 响应式 */
@media (min-width: 820px) {
  .page-contact .contact-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
  }
  .page-contact .channel-card:nth-child(2) {
    margin-top: 20px;
  }
  .page-contact .channel-card:nth-child(3) {
    margin-top: 40px;
  }
  .page-contact .stand-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .breadcrumb {
    padding-top: 26px;
  }
  .page-contact .contact-hero {
    grid-template-columns: 1.08fr .92fr;
    gap: 50px;
    align-items: start;
    padding: 40px 0 58px;
  }
  .page-contact .contact-hero__media {
    margin-top: 8px;
  }
  .page-contact .topic-split {
    grid-template-columns: .85fr 1.15fr;
    gap: 44px;
    align-items: start;
  }
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
  .page-contact .brief-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .page-contact .checklist,
  .page-contact .qtype {
    padding: 26px 24px;
  }
  .page-contact .channel-card {
    padding: 22px 22px 24px;
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-channels {
    margin-right: -22px;
  }
  .page-contact .channel-card:nth-child(2) {
    margin-top: 26px;
  }
  .page-contact .channel-card:nth-child(3) {
    margin-top: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card .copy-btn,
  .page-contact .check-input,
  .page-contact .qtype-tab,
  .page-contact .breadcrumb-link,
  .page-contact .prose a,
  .page-contact .coop-card a,
  .page-contact .stand-foot a {
    transition: none;
  }
  .page-contact .channel-card:hover {
    transform: none;
    box-shadow: var(--shadow-hard);
  }
}