.page-contact {
  --pc-gap: clamp(1.1rem, 3vw, 2rem);
  --pc-line: 1px solid var(--line);
  color: var(--mist);
  padding-bottom: clamp(2.4rem, 7vw, 4.8rem);
}

/* 面包屑 */
.page-contact .breadcrumbs {
  padding-top: clamp(0.9rem, 2.5vw, 1.5rem);
}
.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-contact .breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}
.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.page-contact .breadcrumb-sep {
  color: var(--line);
}
.page-contact .breadcrumb-current {
  color: var(--mist);
}

/* 首屏：非对称分栏 */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  padding-top: clamp(1.4rem, 4vw, 2.6rem);
  padding-bottom: clamp(1.8rem, 5vw, 3.2rem);
}
.page-contact .hero-left h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 7.2vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: -0.012em;
  color: var(--mist);
}
.page-contact .hero-lede {
  margin: 0.9rem 0 0;
  max-width: 46ch;
  font-size: clamp(0.95rem, 2.4vw, 1.06rem);
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .hero-direct {
  margin-top: clamp(1.2rem, 3.5vw, 2rem);
  display: grid;
  gap: 0;
}
.page-contact .direct-row {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0;
  border-top: var(--pc-line);
}
.page-contact .direct-row:last-child {
  border-bottom: var(--pc-line);
}
.page-contact .direct-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-contact .direct-val {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.page-contact .direct-val--tel {
  font-size: clamp(1.55rem, 6.4vw, 3.1rem);
  color: var(--lime);
}
.page-contact .direct-val--mail {
  font-size: clamp(1.02rem, 3.9vw, 1.85rem);
  color: var(--gold);
}

.page-contact .hero-side {
  border: var(--pc-line);
  background: linear-gradient(160deg, var(--blue), var(--ink) 78%);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 3.2vw, 1.7rem);
  display: grid;
  gap: 1rem;
  align-content: start;
}
.page-contact .side-status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--mist);
}
.page-contact .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 61, 0.14);
  flex: none;
  animation: pc-pulse 2.6s ease-in-out infinite;
}
@keyframes pc-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(200, 255, 61, 0.12); }
  50% { box-shadow: 0 0 0 7px rgba(200, 255, 61, 0.04); }
}
.page-contact .side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.page-contact .side-list li {
  display: grid;
  gap: 0.15rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}
.page-contact .side-list strong {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.15rem, 4.4vw, 1.55rem);
  color: var(--lime);
  letter-spacing: -0.01em;
}
.page-contact .side-list span {
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--muted);
}
.page-contact .side-note {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 三条路径 */
.page-contact .path-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(0.9rem, 2.4vw, 1.3rem);
  margin-top: clamp(1.2rem, 3.5vw, 2rem);
}
.page-contact .path-card {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: var(--pc-line);
  border-top-width: 2px;
  border-radius: var(--radius);
  background: rgba(11, 31, 51, 0.42);
}
.page-contact .path-card--gold { border-top-color: var(--gold); }
.page-contact .path-card--lime { border-top-color: var(--lime); }
.page-contact .path-card--sky { border-top-color: var(--sky); }

.page-contact .path-idx {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.page-contact .path-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.6vw, 1.45rem);
  letter-spacing: 0.01em;
  color: var(--mist);
}
.page-contact .path-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.86rem, 2.6vw, 1rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--lime);
  overflow-wrap: anywhere;
  word-break: break-word;
}
.page-contact .path-card--gold .path-value { color: var(--gold); }
.page-contact .path-card--sky .path-value { color: var(--sky); }
.page-contact .path-for {
  margin: 0;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--mist);
}
.page-contact .path-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}
.page-contact .path-list li {
  position: relative;
  padding-left: 0.95rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}
.page-contact .path-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 4px;
  height: 4px;
  background: var(--line);
  border-radius: 1px;
}

/* 图 */
.page-contact .paths-photo,
.page-contact .visit-photo {
  margin-block: clamp(1.6rem, 5vw, 3rem);
}
.page-contact .photo-caption {
  margin-top: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--muted);
}

/* 合作分段切换 */
.page-contact .coop-head {
  max-width: 62ch;
}
.page-contact .coop-tabs {
  margin-top: clamp(1.2rem, 3.5vw, 2rem);
}
.page-contact .coop-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.page-contact .coop-tabs .tab {
  appearance: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.5rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
  transition: color var(--dur) ease, border-color var(--dur) ease, background var(--dur) ease;
}
.page-contact .coop-tabs .tab:hover {
  color: var(--mist);
  border-color: var(--sky);
}
.page-contact .coop-tabs .tab:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}
.page-contact .coop-tabs .tab[aria-selected="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}
.page-contact .coop-tabs .tab-panel {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}
.page-contact .coop-panel-body {
  display: grid;
  gap: 0.9rem;
  max-width: 68ch;
}
.page-contact .coop-panel-body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-contact .coop-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
  border-left: 2px solid var(--line);
  padding-left: 0.95rem;
}
.page-contact .coop-points li {
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--muted);
}
.page-contact .coop-link {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.35);
  padding-bottom: 2px;
  transition: border-color var(--dur) ease, color var(--dur) ease;
}
.page-contact .coop-link:hover,
.page-contact .coop-link:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* 到访 */
.page-contact .contact-visit {
  padding-top: clamp(1.6rem, 4.5vw, 2.6rem);
}
.page-contact .visit-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3.5vw, 2.4rem);
  align-items: start;
}
.page-contact .visit-note {
  margin-top: 1.1rem;
  border: var(--pc-line);
  border-radius: var(--radius);
  background: rgba(4, 16, 25, 0.5);
}
.page-contact .visit-note > summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--gold);
}
.page-contact .visit-note > summary::-webkit-details-marker { display: none; }
.page-contact .visit-note > summary::after {
  content: "+";
  margin-left: auto;
  font-size: 1rem;
  color: var(--muted);
}
.page-contact .visit-note[open] > summary::after {
  content: "–";
  color: var(--lime);
}
.page-contact .visit-note-body {
  padding: 0 1rem 1rem;
  display: grid;
  gap: 0.7rem;
}
.page-contact .visit-note-body p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .visit-list {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: var(--pc-line);
}
.page-contact .visit-item {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 0;
  border-bottom: var(--pc-line);
}
.page-contact .visit-item dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.page-contact .visit-item dd {
  margin: 0;
  font-size: clamp(0.9rem, 2.6vw, 1rem);
  line-height: 1.7;
  color: var(--mist);
  overflow-wrap: anywhere;
}

/* 抽象地图条带 */
.page-contact .map-band {
  position: relative;
  margin-top: clamp(1.2rem, 3.5vw, 2rem);
  height: clamp(120px, 24vw, 190px);
  overflow: hidden;
  border: var(--pc-line);
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--blue), var(--ink-deep));
}
.page-contact .map-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.page-contact .map-label {
  position: absolute;
  left: clamp(0.6rem, 2.5vw, 1rem);
  bottom: clamp(0.6rem, 2.5vw, 1rem);
  right: clamp(0.6rem, 2.5vw, 1rem);
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--lime);
}

/* 帮助中心折叠 */
.page-contact .help-head {
  max-width: 60ch;
}
.page-contact .help-list {
  margin-top: clamp(1rem, 3vw, 1.6rem);
  border-top: var(--pc-line);
}
.page-contact .help-item {
  border-bottom: var(--pc-line);
}
.page-contact .help-item > summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
}
.page-contact .help-item > summary::-webkit-details-marker { display: none; }
.page-contact .help-idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--lime);
  flex: none;
}
.page-contact .help-q {
  font-size: clamp(0.92rem, 2.6vw, 1.02rem);
  line-height: 1.6;
  color: var(--mist);
}
.page-contact .help-item > summary:hover .help-q {
  color: var(--gold);
}
.page-contact .help-item[open] > summary .help-q {
  color: var(--lime);
}
.page-contact .help-body {
  display: grid;
  gap: 0.7rem;
  padding: 0 0 1.1rem 1.9rem;
}
.page-contact .help-body p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--muted);
}
.page-contact .help-foot {
  margin-top: clamp(1.1rem, 3vw, 1.6rem);
}

/* 响应说明 */
.page-contact .contact-response {
  margin-top: clamp(1.8rem, 5vw, 3rem);
  padding-top: clamp(1.2rem, 3.5vw, 2rem);
  border-top: var(--pc-line);
}
.page-contact .resp-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 4vw, 1.75rem);
  letter-spacing: 0.01em;
  color: var(--mist);
}
.page-contact .resp-grid {
  margin-top: clamp(1rem, 3vw, 1.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(0.9rem, 2.5vw, 1.4rem);
}
.page-contact .resp-item {
  display: grid;
  gap: 0.45rem;
  padding: 1rem;
  border: var(--pc-line);
  border-radius: var(--radius);
  background: rgba(11, 31, 51, 0.35);
}
.page-contact .resp-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.3rem, 5vw, 2rem);
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.01em;
}
.page-contact .resp-text {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.75;
  color: var(--muted);
}

/* 底部行动 */
.page-contact .contact-cta {
  margin-top: clamp(1.6rem, 4.5vw, 2.6rem);
  padding: clamp(1.1rem, 3.5vw, 1.8rem);
  border: var(--pc-line);
  border-left: 3px solid var(--lime);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(200, 255, 61, 0.05), rgba(4, 16, 25, 0.4));
  display: grid;
  gap: 1rem;
}
.page-contact .cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.8vw, 1.6rem);
  letter-spacing: 0.01em;
  color: var(--mist);
}
.page-contact .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* 桌面布局 */
@media (min-width: 760px) {
  .page-contact .path-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .resp-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .contact-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-contact .visit-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    column-gap: clamp(2rem, 5vw, 4rem);
    align-items: end;
  }
  .page-contact .hero-side {
    align-self: stretch;
  }
  .page-contact .visit-top {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    column-gap: clamp(2rem, 5vw, 3.6rem);
  }
  .page-contact .visit-list {
    border-top: 0;
    border-left: var(--pc-line);
    padding-left: clamp(1rem, 2.5vw, 1.6rem);
  }
  .page-contact .visit-item:first-child {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .status-dot {
    animation: none;
  }
  .page-contact .direct-val,
  .page-contact .coop-tabs .tab,
  .page-contact .coop-link,
  .page-contact .breadcrumb-link {
    transition: none;
  }
}
<<<END>>>