.page-contact .contact-crumbs {
  padding-top: clamp(20px, 3vw, 36px);
}

.page-contact .contact-hero {
  padding-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-hero .frame-window-body {
  padding: clamp(22px, 4vw, 48px);
}

.page-contact .contact-h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 64px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--ice);
  margin: 10px 0 0;
  max-width: 18ch;
}

.page-contact .contact-lede {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
  max-width: 56ch;
  margin: 18px 0 0;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-actions .btn {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
}

.page-contact .contact-split-section,
.page-contact .precheck,
.page-contact .response,
.page-contact .contact-next {
  padding-top: var(--pad-section);
  padding-bottom: var(--pad-section);
}

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

.page-contact .channel-rail,
.page-contact .topic-panel,
.page-contact .check-body {
  min-width: 0;
}

.page-contact .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .section-title {
  font-family: var(--font-display);
  letter-spacing: 0.03em;
}

.page-contact .section-lede {
  color: var(--mist);
  max-width: 52ch;
}

/* —— 联络通道排行 —— */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 20px;
  background: var(--card);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.page-contact .channel-item:hover,
.page-contact .channel-item:focus-within {
  background: var(--dusk);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lg);
}

.page-contact .channel-item--hours {
  background: var(--night);
  border-color: var(--sunset);
}

.page-contact .channel-rank {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--sunset);
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.page-contact .channel-name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ice);
  margin: 0 0 6px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.5;
  color: var(--sunset);
  margin: 0 0 8px;
  overflow-wrap: anywhere;
  user-select: all;
  letter-spacing: 0.01em;
}

.page-contact .channel-item--hours .channel-value {
  color: var(--neon);
}

.page-contact .channel-note {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
  margin: 0;
}

/* —— 问题分类折叠面板 —— */
.page-contact .topic-list {
  display: grid;
  gap: 12px;
  border-top: var(--line);
  padding-top: 16px;
}

.page-contact .topic-item {
  background: var(--deep);
  border: var(--line);
  transition: border-color 180ms ease, background 180ms ease;
}

.page-contact .topic-item[open] {
  border-color: var(--sunset);
  background: var(--card);
}

.page-contact .topic-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: 0.04em;
  color: var(--ice);
}

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

.page-contact .topic-summary:hover {
  color: var(--sand);
}

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

.page-contact .topic-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--deep);
  background: var(--sunset);
  padding: 3px 8px;
  letter-spacing: 0.06em;
}

.page-contact .topic-caret {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-contact .topic-caret::before,
.page-contact .topic-caret::after {
  content: "";
  position: absolute;
  background: var(--neon);
  transition: transform 180ms ease, opacity 180ms ease;
}

.page-contact .topic-caret::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-contact .topic-caret::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-contact .topic-item[open] .topic-caret::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .topic-body {
  padding: 0 20px 20px 56px;
  border-left: 2px solid var(--ridge);
  margin-left: 20px;
}

.page-contact .topic-body p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  margin: 0 0 10px;
  max-width: 48ch;
}

.page-contact .topic-body .topic-prep {
  font-size: 14px;
  color: var(--neon);
  margin-bottom: 0;
  border-top: 1px dashed var(--ridge);
  padding-top: 10px;
}

/* —— 联系前自检 —— */
.page-contact .check-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

.page-contact .check-media {
  margin: 0;
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
}

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

.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .check-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 18px;
  background: var(--night);
  border: var(--line);
  border-left-width: 4px;
  border-left-color: var(--neon);
}

.page-contact .check-item::before {
  content: "";
  width: 12px;
  height: 12px;
  margin-top: 7px;
  background: var(--neon);
  box-shadow: 3px 3px 0 rgba(4, 15, 23, 0.55);
}

.page-contact .check-item h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ice);
  margin: 0 0 6px;
}

.page-contact .check-item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 50ch;
}

/* —— 处理节奏 —— */
.page-contact .response-figure {
  margin: 0 0 clamp(24px, 3vw, 36px);
  border: var(--line);
  background: var(--card);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-contact .response-figure .media-caption {
  padding: 12px 18px;
  border-top: var(--line);
  color: var(--mist);
  font-size: 13.5px;
}

.page-contact .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-contact .timeline-item {
  padding: 18px 0 6px;
  border-top: 2px solid var(--ridge);
}

.page-contact .timeline-time {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--sunset);
  display: block;
  margin-bottom: 8px;
}

.page-contact .timeline-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ice);
  margin: 0 0 8px;
}

.page-contact .timeline-item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 44ch;
}

/* —— 下一步入口 —— */
.page-contact .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-contact .next-card {
  display: block;
  position: relative;
  padding: 26px 24px 24px;
  background: var(--night);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: inherit;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.page-contact .next-card:hover {
  background: var(--dusk);
  border-color: var(--sunset);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lg);
}

.page-contact .next-card:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.page-contact .next-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--sunset);
  display: block;
  margin-bottom: 12px;
}

.page-contact .next-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ice);
  margin: 0 0 10px;
}

.page-contact .next-card p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 18px;
  max-width: 40ch;
}

.page-contact .next-go {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--neon);
  border-bottom: 2px solid var(--neon);
  padding-bottom: 2px;
}

/* —— 桌面分栏 —— */
@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(24px, 3.4vw, 52px);
  }

  .page-contact .check-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 3.4vw, 52px);
  }

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

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

  .page-contact .timeline-item {
    border-top: none;
    border-left: 2px solid var(--ridge);
    padding: 20px 26px 8px;
  }

  .page-contact .timeline-item:first-child {
    border-left: none;
  }

  .page-contact .channel-rail .section-head,
  .page-contact .topic-panel .section-head {
    position: sticky;
    top: 84px;
  }

  .page-contact .channel-rail .section-head {
    position: static;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-h1 {
    max-width: 22ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-item,
  .page-contact .next-card,
  .page-contact .topic-caret::before,
  .page-contact .topic-caret::after {
    transition: none;
  }

  .page-contact .channel-item:hover,
  .page-contact .next-card:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>