.page-contact {
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

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

@media (min-width: 900px) {
  .page-contact .section {
    padding: 84px 0;
  }
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 8px 0 14px;
}

.page-contact h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  margin: 10px 0 8px;
}

.page-contact p {
  font-size: 16px;
  line-height: 1.75;
}

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

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-hair);
}

.page-contact .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 首屏框景 ---------- */

.page-contact .contact-hero-frame {
  position: relative;
  padding: 26px 20px 30px;
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-m);
  background-image: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 16px);
  background-repeat: repeat-x;
  background-size: 100% 6px;
  background-position: left top;
}

.page-contact .contact-hero-frame::after {
  content: "";
  position: absolute;
  right: 20px;
  bottom: 14px;
  width: 64px;
  height: 2px;
  background: var(--cyan);
  opacity: 0.7;
}

@media (min-width: 900px) {
  .page-contact .contact-hero-frame {
    padding: 44px 40px 46px;
  }
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

@media (min-width: 920px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
  }
}

.page-contact .contact-hero-copy .page-title {
  margin: 6px 0 16px;
}

.page-contact .contact-hero-copy .lede {
  max-width: 58ch;
}

.page-contact .contact-hero-media {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line-hair);
  background: var(--ink-800);
}

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

/* ---------- 三项联系方式 ---------- */

.page-contact .contact-cards {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 780px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 42px;
  }
}

.page-contact .contact-card {
  position: relative;
  padding: 24px 20px 20px;
  border: 1px solid rgba(46, 216, 198, 0.34);
  border-radius: var(--radius-m);
  background: var(--ink-800);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 20px;
  top: -1px;
  width: 42px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .contact-card-label {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .contact-card-value {
  margin: 10px 0 10px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}

.page-contact .contact-card-value--addr {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .contact-card-scope {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 渠道切换 ---------- */

.page-contact .contact-channels {
  background: linear-gradient(180deg, rgba(15, 39, 64, 0.9), rgba(8, 25, 43, 0.2));
}

.page-contact .section-head {
  max-width: 62ch;
}

.page-contact .section-note {
  margin: 0;
  color: var(--mist);
}

.page-contact .channel-switch {
  margin-top: 26px;
}

.page-contact .channel-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  scrollbar-width: none;
}

.page-contact .channel-tabs::-webkit-scrollbar {
  display: none;
}

.page-contact .channel-tab {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-hair);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 180ms var(--ease-signal), color 180ms var(--ease-signal), border-color 180ms var(--ease-signal);
}

.page-contact .channel-tab:hover {
  border-color: rgba(46, 216, 198, 0.55);
  color: var(--cyan-soft);
}

.page-contact .channel-tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--on-cyan);
}

.page-contact .channel-tab:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-contact .channel-panels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 860px) {
  .page-contact .channel-panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-contact .channel-panel {
  padding: 22px 22px 20px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-hair);
  background: linear-gradient(160deg, rgba(46, 216, 198, 0.09), rgba(15, 39, 64, 0.92) 58%);
}

.page-contact .channel-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .channel-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .channel-panel p {
  color: var(--mist);
  font-size: 15px;
}

.page-contact .channel-panel h3 {
  color: var(--paper);
  margin-top: 4px;
}

.page-contact .channel-route {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-hair);
  font-size: 14px;
  color: var(--paper);
}

/* ---------- 邮件写法（纸面分区） ---------- */

.page-contact .surface-paper {
  color: var(--ink-700);
}

.page-contact .surface-paper .eyebrow {
  color: var(--ink-700);
  opacity: 0.7;
}

.page-contact .contact-mail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

@media (min-width: 880px) {
  .page-contact .contact-mail-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 46px;
  }
}

.page-contact .contact-mail-media {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--rule);
}

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

.page-contact .mail-template {
  margin: 12px 0;
  padding: 13px 18px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: var(--ink-900);
  color: var(--cyan-soft);
  font-size: 15px;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
}

.page-contact .mail-points {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .mail-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .mail-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--signal);
}

/* ---------- 三段短说明 ---------- */

.page-contact .contact-notes-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

@media (min-width: 820px) {
  .page-contact .contact-notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px;
  }
}

.page-contact .note-cell {
  padding-top: 16px;
  border-top: 2px solid var(--cyan);
}

.page-contact .note-index {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .note-cell p {
  color: var(--mist);
  font-size: 15px;
  margin: 0;
}

.page-contact .addr-details {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-hair);
}

.page-contact .addr-details summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
}

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

.page-contact .addr-details summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-contact .addr-details[open] summary::before {
  content: "–";
}

.page-contact .addr-details summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .addr-details p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 备案与自助入口 ---------- */

.page-contact .contact-compliance .col-main p {
  color: var(--mist);
}

.page-contact .compliance-list {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .compliance-list dt {
  padding-top: 14px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .compliance-list dd {
  margin: 4px 0 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

@media (min-width: 720px) {
  .page-contact .compliance-list {
    grid-template-columns: minmax(0, 132px) minmax(0, 1fr);
    column-gap: 22px;
  }

  .page-contact .compliance-list dt {
    padding: 15px 0;
    border-top: 1px solid var(--line-soft);
  }

  .page-contact .compliance-list dd {
    margin: 0;
    padding: 15px 0;
    border-top: 1px solid var(--line-soft);
    border-bottom: 0;
  }

  .page-contact .compliance-list dd:last-child {
    border-bottom: 1px solid var(--line-soft);
  }
}

.page-contact .contact-routes {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid var(--line-hair);
}

.page-contact .route-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 900px) {
  .page-contact .route-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
  }
}

.page-contact .route-link {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  transition: transform 180ms var(--ease-signal), border-color 180ms var(--ease-signal);
}

.page-contact .route-link:hover,
.page-contact .route-link:focus-visible {
  transform: translateX(4px);
  border-color: rgba(46, 216, 198, 0.6);
  outline: none;
}

.page-contact .route-num {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 2px;
}

.page-contact .route-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .route-text strong {
  display: block;
  color: var(--paper);
  font-weight: 600;
  margin-bottom: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-tab,
  .page-contact .route-link {
    transition: none;
  }

  .page-contact .route-link:hover,
  .page-contact .route-link:focus-visible {
    transform: none;
  }
}