.page-contact {
  display: block;
  font-family: var(--font-sans);
  color: var(--c-paper);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .pc-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}
.page-contact .pc-crumb .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}
.page-contact .pc-crumb .breadcrumb__item a {
  color: var(--c-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-contact .pc-crumb .breadcrumb__item a:hover,
.page-contact .pc-crumb .breadcrumb__item a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}
.page-contact .pc-crumb .breadcrumb__sep {
  color: var(--c-dim);
}
.page-contact .pc-crumb .breadcrumb__item:last-child {
  color: var(--c-paper);
}

/* ---------- 通用文本链接 ---------- */
.page-contact .pc-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 227, 0.4);
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}
.page-contact .pc-link:hover,
.page-contact .pc-link:focus-visible {
  color: var(--c-cyan-soft);
  border-bottom-color: var(--c-cyan-soft);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-intro {
  padding-top: clamp(26px, 4vw, 52px);
}
.page-contact .pc-intro__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}
.page-contact .pc-intro__main {
  min-width: 0;
}
.page-contact .pc-intro__title {
  margin: 12px 0 18px;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--c-paper);
  max-width: 18em;
}
.page-contact .pc-intro__lead {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--c-muted);
}
.page-contact .pc-intro__side {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--c-line);
  min-width: 0;
}
.page-contact .pc-intro__fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
}
.page-contact .pc-intro__factKey {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-dim);
}
.page-contact .pc-intro__factVal {
  font-size: 14px;
  color: var(--c-paper);
  text-align: right;
}
.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 联系方式板 ---------- */
.page-contact .pc-board {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(26px, 4vw, 44px);
}
.page-contact .pc-card,
.page-contact .pc-prep {
  position: relative;
  min-width: 0;
  border: 1px solid var(--c-line);
  background: linear-gradient(168deg, var(--c-mid) 0%, #0a1f33 100%);
  padding: clamp(18px, 2.6vw, 28px);
}
.page-contact .pc-card::before,
.page-contact .pc-prep::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 54px;
  height: 3px;
  background: var(--c-cyan);
}
.page-contact .pc-prep::before {
  background: var(--c-gold);
}
.page-contact .pc-card__fig {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--c-line);
  overflow: hidden;
  aspect-ratio: 1000 / 600;
}
.page-contact .pc-card__fig img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 联系条目 ---------- */
.page-contact .pc-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}
.page-contact .pc-channel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 14px;
  padding: 14px 0;
  border-top: 1px solid var(--c-line);
}
.page-contact .pc-channel:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-contact .pc-channel .contact-list__label {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-dim);
}
.page-contact .pc-channel .contact-list__value {
  grid-column: 1;
  min-width: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}
.page-contact .pc-channel .contact-list__value--plain {
  font-size: 14px;
  color: var(--c-muted);
}
.page-contact .pc-channel .copy-btn {
  grid-column: 2;
  grid-row: 2 / 4;
  align-self: center;
}

/* ---------- 复制按钮 ---------- */
.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: 1px solid var(--c-line);
  background: transparent;
  color: var(--c-cyan);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  line-height: 1.4;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
  outline: none;
}
.page-contact .copy-btn[data-copy-state="done"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
}
.page-contact .copy-btn[data-copy-state="fail"] {
  border-color: var(--c-flare);
  color: var(--c-flare);
}
.page-contact .copy-btn--lg {
  padding: 11px 18px;
  font-size: 13px;
}

/* ---------- 准备清单 ---------- */
.page-contact .pc-prep__title {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}
.page-contact .pc-prep__lead {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}
.page-contact .pc-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}
.page-contact .pc-prep__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--c-line);
}
.page-contact .pc-prep__box {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--c-cyan);
  cursor: pointer;
  flex: none;
}
.page-contact .pc-prep__label {
  display: grid;
  gap: 4px;
  cursor: pointer;
}
.page-contact .pc-prep__name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
  transition: color 160ms var(--ease);
}
.page-contact .pc-prep__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}
.page-contact .pc-prep__box:checked ~ .pc-prep__label .pc-prep__name {
  color: var(--c-cyan);
}

/* ---------- 响应安排 ---------- */
.page-contact .pc-response__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}
.page-contact .pc-response__text {
  min-width: 0;
}
.page-contact .pc-response__text .prose {
  margin: 14px 0 0;
  max-width: 38em;
}
.page-contact .pc-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--c-line);
}
.page-contact .pc-steps__row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
}
.page-contact .pc-steps__num {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}
.page-contact .pc-steps__text {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-paper);
}
.page-contact .pc-response__fig {
  margin: 0;
  min-width: 0;
}
.page-contact .pc-response__fig .figure__frame {
  border: 1px solid var(--c-line);
  overflow: hidden;
  background: var(--c-mid);
}
.page-contact .pc-response__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 费用与报价 ---------- */
.page-contact .pc-fee__grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  margin-top: clamp(24px, 3.4vw, 40px);
}
.page-contact .pc-fee__col {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid var(--c-line);
  background: var(--c-mid);
}
.page-contact .pc-fee__col--gold {
  background: linear-gradient(158deg, rgba(227, 178, 79, 0.14) 0%, var(--c-mid) 62%);
}
.page-contact .pc-fee__col--cyan {
  background: linear-gradient(158deg, rgba(53, 214, 227, 0.13) 0%, var(--c-mid) 62%);
}
.page-contact .pc-fee__head {
  margin: 14px 0 14px;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}
.page-contact .pc-fee__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-contact .pc-fee__item {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-muted);
}
.page-contact .pc-fee__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--c-cyan);
}
.page-contact .pc-fee__hint {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-coop__grid {
  margin-top: clamp(24px, 3.4vw, 40px);
}
.page-contact .pc-coop__card {
  position: relative;
  min-width: 0;
  padding: 22px 20px;
  border: 1px solid var(--c-line);
  background: linear-gradient(200deg, var(--c-mid) 0%, #0a1f33 100%);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease), background 200ms var(--ease);
}
.page-contact .pc-coop__card:hover,
.page-contact .pc-coop__card:focus-within,
.page-contact .pc-coop__card:focus-visible {
  border-color: var(--c-cyan);
  transform: translateY(-2px);
  outline: none;
}
.page-contact .pc-coop__mark {
  display: block;
  width: 34px;
  height: 3px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--c-cyan) 0%, rgba(53, 214, 227, 0) 100%);
}
.page-contact .pc-coop__card:nth-child(2) .pc-coop__mark {
  background: linear-gradient(90deg, var(--c-gold) 0%, rgba(227, 178, 79, 0) 100%);
}
.page-contact .pc-coop__card:nth-child(3) .pc-coop__mark {
  background: linear-gradient(90deg, var(--c-cyan-soft) 0%, rgba(142, 233, 240, 0) 100%);
}
.page-contact .pc-coop__card:nth-child(4) .pc-coop__mark {
  background: linear-gradient(90deg, var(--c-flare) 0%, rgba(255, 91, 61, 0) 100%);
}
.page-contact .pc-coop__name {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}
.page-contact .pc-coop__brief {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-muted);
}
.page-contact .pc-coop__detail p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--c-cyan-soft);
}

/* ---------- 常见咨询分类 ---------- */
.page-contact .pc-topics__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
.page-contact .pc-topics__item {
  min-width: 0;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-deep);
}
.page-contact .pc-topics__text {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 结尾动作 ---------- */
.page-contact .pc-next__panel {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--c-line);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(53, 214, 227, 0.14) 0%, rgba(53, 214, 227, 0) 58%),
    linear-gradient(180deg, var(--c-mid) 0%, #091c30 100%);
  align-items: center;
}
.page-contact .pc-next__title {
  margin: 10px 0 12px;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--c-paper);
}
.page-contact .pc-next__text {
  margin: 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-muted);
}
.page-contact .pc-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-contact .pc-next__foot {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--c-dim);
}

/* ---------- 悬停展开（仅指针设备） ---------- */
@media (hover: hover) and (pointer: fine) and (min-width: 900px) {
  .page-contact .pc-coop__detail {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin-top: 0;
    transition: max-height 280ms var(--ease), opacity 200ms var(--ease), margin-top 280ms var(--ease);
  }
  .page-contact .pc-coop__card:hover .pc-coop__detail,
  .page-contact .pc-coop__card:focus-within .pc-coop__detail,
  .page-contact .pc-coop__card:focus-visible .pc-coop__detail {
    max-height: 220px;
    opacity: 1;
    margin-top: 12px;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-fee__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-next__panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .pc-intro__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 1fr);
  }
  .page-contact .pc-board {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
  .page-contact .pc-response__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
  .page-contact .pc-response__fig {
    position: sticky;
    top: 96px;
  }
  .page-contact .pc-topics__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 减小动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .page-contact .pc-coop__card:hover,
  .page-contact .pc-coop__card:focus-within,
  .page-contact .pc-coop__card:focus-visible {
    transform: none;
  }
}
<<<END>>>