/* ===== 联系与纠错 /contact/ ===== */

.page-contact {
  --contact-label-col: 200px;
  --contact-hover-line: 3px;
  overflow-x: clip;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-contact .breadcrumb .sep {
  color: var(--color-line);
}

.page-contact section[id] {
  scroll-margin-top: calc(var(--space-6) + var(--space-2));
}

/* --- 页首 --- */

.page-contact .contact-masthead {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-contact .masthead-lede h1 {
  margin: var(--space-3) 0;
  max-width: 12ch;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(var(--text-xl), 7vw, var(--text-2xl));
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-contact .masthead-meta {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-contact .masthead-frame {
  margin: 0;
}

.page-contact .masthead-frame .frame-body {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-contact .frame-body img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- 渠道索引 --- */

.page-contact .channel-index {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-contact .channel-index-item {
  position: relative;
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: var(--space-1) var(--space-3);
  padding: var(--space-4) var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 120ms linear;
}

.page-contact .channel-index-item::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: var(--contact-hover-line);
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 240ms ease;
}

.page-contact .channel-index-item:hover,
.page-contact .channel-index-item:focus-within {
  background-color: var(--color-primary-soft);
}

.page-contact .channel-index-item:hover::before,
.page-contact .channel-index-item:focus-within::before {
  transform: scaleY(1);
}

.page-contact .channel-index-no {
  grid-column: 1;
  grid-row: 1;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  align-self: start;
}

.page-contact .channel-index-name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-ink);
  transition: color 240ms ease;
}

.page-contact .channel-index-item:hover .channel-index-name {
  color: var(--color-accent);
}

.page-contact .channel-index-desc {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-contact .channel-index-link {
  grid-column: 2;
  grid-row: 3;
  justify-self: start;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 240ms ease, color 240ms ease;
}

.page-contact .channel-index-link:hover,
.page-contact .channel-index-link:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* --- 渠道详情 --- */

.page-contact .channel-block {
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-contact .channel-label .section-title {
  margin: var(--space-2) 0 0;
}

.page-contact .channel-value {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: clamp(var(--text-base), 3.6vw, var(--text-lg));
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.3;
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-contact .channel-main p {
  max-width: 58ch;
  line-height: var(--leading-body);
}

.page-contact .channel-hint {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-contact .field-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-contact .field-list li {
  display: grid;
  grid-template-columns: minmax(5.5rem, 8rem) minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  line-height: 1.6;
}

.page-contact .field-key {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
}

.page-contact .field-val {
  color: var(--color-ink-soft);
}

/* --- 电话与地址 --- */

.page-contact .contact-pair {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.page-contact .contact-pair-item {
  padding-top: var(--space-3);
  border-top: var(--contact-hover-line) solid var(--color-primary);
  transition: border-top-color 240ms ease;
}

.page-contact .contact-pair-item:hover {
  border-top-color: var(--color-accent);
}

.page-contact .contact-pair-key {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-contact .contact-pair-addr {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-contact .contact-pair-note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* --- 纠错流程 --- */

.page-contact .flow-frame {
  margin: var(--space-6) 0 var(--space-8);
}

.page-contact .flow-frame .frame-body {
  aspect-ratio: 8 / 5;
  overflow: hidden;
}

.page-contact .step-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-6);
}

.page-contact .step-item {
  padding-top: var(--space-3);
  border-top: var(--contact-hover-line) solid var(--color-primary);
  transition: border-top-color 240ms ease;
}

.page-contact .step-item:hover {
  border-top-color: var(--color-accent);
}

.page-contact .step-no {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.page-contact .step-name {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-ink);
}

.page-contact .step-desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* --- 受理边界 --- */

.page-contact .scope-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-contact .scope-head {
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-ink);
}

.page-contact .scope-col--yes .scope-head {
  border-bottom-color: var(--color-primary);
  border-bottom-width: var(--contact-hover-line);
}

.page-contact .scope-col--no .scope-head {
  color: var(--color-ink-muted);
}

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

.page-contact .scope-list li {
  position: relative;
  padding: var(--space-3) 0 var(--space-3) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--space-3) + 0.72em);
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}

.page-contact .scope-col--no .scope-list li::before {
  background: var(--color-line);
}

/* --- 收尾入口 --- */

.page-contact .closing-links {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-6);
}

.page-contact .closing-link {
  display: block;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  text-decoration: none;
  color: inherit;
  transition: border-color 240ms ease;
}

.page-contact .closing-link:hover,
.page-contact .closing-link:focus-visible {
  border-top-color: var(--color-accent);
}

.page-contact .closing-link-title {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-ink);
}

.page-contact .closing-link-note {
  display: block;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* --- 自适应栅格 --- */

@media (min-width: 680px) {
  .page-contact .contact-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }

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

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

@media (min-width: 760px) {
  .page-contact .contact-masthead {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: var(--space-8);
  }

  .page-contact .channel-index-item {
    grid-template-columns: 2.5rem minmax(0, 1fr) 11rem;
    align-items: start;
    row-gap: var(--space-1);
  }

  .page-contact .channel-index-no {
    grid-row: 1 / span 3;
    padding-top: 0.35em;
  }

  .page-contact .channel-index-link {
    grid-column: 3;
    grid-row: 1 / span 3;
    margin-top: 0.45em;
    align-self: start;
  }

  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-8);
  }
}

@media (min-width: 900px) {
  .page-contact .channel-block {
    grid-template-columns: var(--contact-label-col) minmax(0, 1fr);
    gap: var(--space-8);
    padding-block: var(--space-8);
  }
}

@media (min-width: 1020px) {
  .page-contact .step-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-index-item,
  .page-contact .channel-index-item::before,
  .page-contact .channel-index-name,
  .page-contact .channel-index-link,
  .page-contact .contact-pair-item,
  .page-contact .step-item,
  .page-contact .closing-link {
    transition-duration: 0ms;
  }
}
<<<END>>>