.page-contact {
  --pc-radius: 12px;
  display: block;
}

.page-contact .breadcrumb {
  padding-top: 28px;
  font-size: var(--t-xs);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-mute);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--text-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 40px 0 48px;
}

.page-contact .hero-grid {
  display: grid;
  gap: 30px;
}

.page-contact .hero-main .index-label {
  margin: 0 0 16px;
}

.page-contact .hero-main .display-title {
  margin: 0 0 20px;
  font-size: var(--t-2xl);
}

.page-contact .hero-lede {
  margin: 0;
  max-width: 46ch;
  font-size: var(--t-lg);
  line-height: 1.7;
  color: var(--text-mute);
}

.page-contact .contact-status {
  padding: 22px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--pc-radius) var(--pc-radius) 0;
}

.page-contact .status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 179, 71, 0.15);
}

.page-contact .status-body {
  margin: 14px 0 0;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--text-mute);
}

.page-contact .status-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 14px;
  margin-bottom: 30px;
}

.page-contact .section-head h2 {
  margin: 0;
  font-size: var(--t-xl);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.page-contact .section-note {
  margin: 0;
  max-width: 44ch;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--text-mute);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels {
  padding: 16px 0 60px;
  border-top: 1px solid var(--line);
}

.page-contact .channel-map {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 32px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--ink-800);
  object-fit: cover;
}

.page-contact .channel-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px 22px 24px 26px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  transition: transform var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  border-radius: 3px;
  background: var(--coral);
  opacity: 0.85;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background-color: var(--ink-700);
}

.page-contact .channel-num {
  margin: 0;
  font-family: var(--mono);
  font-size: var(--t-2xl);
  font-weight: 300;
  line-height: 1;
  color: var(--amber);
}

.page-contact .channel-name {
  margin: 0;
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .channel-key {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: var(--t-sm);
  line-height: 1.65;
  color: var(--text);
  background: #071322;
  border: 1px dashed var(--line);
  border-radius: 6px;
  overflow-wrap: anywhere;
}

.page-contact .channel-for {
  margin: 0;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--text-mute);
}

.page-contact .channel-action {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--coral);
}

/* ---------- 咨询准备 + 回复节奏 ---------- */
.page-contact .prep-reply {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-reply-grid {
  display: grid;
  gap: 48px;
}

.page-contact .prep-col .index-label,
.page-contact .reply-col .index-label {
  margin: 0 0 14px;
}

.page-contact .prep-col h2,
.page-contact .reply-col h2 {
  margin: 0 0 24px;
  font-size: var(--t-xl);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .prep-index {
  font-family: var(--mono);
  font-size: var(--t-sm);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 3px;
}

.page-contact .prep-title {
  margin: 0 0 6px;
  font-size: var(--t-md);
  font-weight: 700;
  color: var(--text);
}

.page-contact .prep-body {
  margin: 0;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--text-mute);
}

.page-contact .prep-tail {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--text-mute);
}

.page-contact .reply-figure {
  margin: 0 0 26px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .reply-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .reply-rows {
  margin: 0;
  padding: 0;
}

.page-contact .reply-row {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .reply-row:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .reply-row dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .reply-row dd {
  margin: 0;
  font-size: var(--t-sm);
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 站点信息 ---------- */
.page-contact .site-id {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.page-contact .id-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .id-cell {
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(0, 229, 200, 0.07), rgba(0, 229, 200, 0) 72%);
}

.page-contact .id-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-mute);
}

.page-contact .id-value {
  margin: 8px 0 0;
  font-size: var(--t-md);
  color: var(--text);
}

.page-contact .id-value.mono {
  font-family: var(--mono);
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

/* ---------- 快捷入口 ---------- */
.page-contact .quick {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .quick-link {
  position: relative;
  display: block;
  padding: 20px 0 20px 24px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background-color var(--ease), color var(--ease);
}

.page-contact .quick-list li:first-child .quick-link {
  border-top: 1px solid var(--line);
}

.page-contact .quick-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 27px;
  width: 8px;
  height: 1px;
  background: var(--line);
  transition: width var(--ease), background-color var(--ease);
}

.page-contact .quick-link:hover,
.page-contact .quick-link:focus-visible {
  background-color: rgba(0, 229, 200, 0.06);
}

.page-contact .quick-link:hover::before,
.page-contact .quick-link:focus-visible::before {
  width: 16px;
  background: var(--cyan);
}

.page-contact .quick-title {
  display: block;
  font-size: var(--t-md);
  font-weight: 700;
  color: var(--text);
}

.page-contact .quick-desc {
  display: block;
  margin-top: 6px;
  font-size: var(--t-sm);
  line-height: 1.75;
  color: var(--text-mute);
}

/* ---------- 底部状态条 ---------- */
.page-contact .contact-footnote {
  padding-bottom: 64px;
}

.page-contact .footnote-bar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-contact .footnote-bar::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .breadcrumb {
    padding-top: 36px;
  }

  .page-contact .contact-hero {
    padding: 52px 0 64px;
  }

  .page-contact .hero-main .display-title {
    font-size: var(--t-3xl);
  }

  .page-contact .section-head {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: end;
    gap: 32px;
  }

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

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

  .page-contact .reply-row {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .prep-reply-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
  }

  .page-contact .prep-col {
    padding-right: 56px;
  }

  .page-contact .reply-col {
    padding-left: 56px;
    border-left: 1px solid var(--line);
  }

  .page-contact .prep-col h2,
  .page-contact .reply-col h2 {
    font-size: var(--t-2xl);
  }

  .page-contact .id-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}