.page-contact {
  --pc-glass: rgba(12, 18, 32, 0.62);
  --pc-line-soft: rgba(31, 42, 68, 0.9);
  --pc-gap: 26px;
  padding-top: 78px;
  color: var(--white);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  padding-bottom: 6px;
  font-size: var(--t-sm);
  color: var(--mist);
}

.page-contact .breadcrumbs .breadcrumbs-item {
  color: var(--mist);
  text-decoration: none;
}

.page-contact .breadcrumbs .breadcrumbs-item:hover {
  color: var(--cyan);
}

.page-contact .breadcrumbs .breadcrumbs-item[aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero-grid {
  display: grid;
  gap: 34px;
}

.page-contact .contact-hero-copy .exhibit-tag {
  display: inline-block;
  margin-bottom: 18px;
}

.page-contact .contact-hero-copy h1 {
  font-family: var(--f-head);
  font-size: clamp(32px, 8.4vw, 64px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.page-contact .contact-hero-copy .lede {
  max-width: 56ch;
  color: var(--mist);
  margin: 0 0 26px;
}

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

.page-contact .contact-hero-visual {
  position: relative;
}

.page-contact .hero-plate {
  position: relative;
  overflow: hidden;
  min-height: 250px;
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
  border: 1px solid var(--line);
  background-color: var(--console);
  background-image:
    radial-gradient(rgba(154, 169, 194, 0.3) 1px, transparent 1px),
    linear-gradient(152deg, rgba(47, 227, 214, 0.18), rgba(255, 61, 154, 0.12) 42%, rgba(5, 7, 15, 0) 74%);
  background-size: 18px 18px, 100% 100%;
  clip-path: polygon(0 7%, 93% 0, 100% 91%, 7% 100%);
}

.page-contact .hero-plate::after {
  content: "";
  position: absolute;
  inset: auto -10% -30% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 227, 214, 0.34), rgba(47, 227, 214, 0) 68%);
  animation: pc-breath 6s ease-in-out infinite;
  pointer-events: none;
}

.page-contact .plate-dot {
  position: absolute;
  top: 26px;
  left: 26px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 6px rgba(77, 255, 158, 0.14);
}

.page-contact .plate-note {
  position: relative;
  margin: 0;
  font-size: var(--t-sm);
  color: var(--amber);
}

.page-contact .plate-caption {
  position: relative;
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--t-lg);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

@keyframes pc-breath {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 0.95; }
}

/* ---------- 章节带 ---------- */
.page-contact .chapter-band {
  margin-bottom: 30px;
}

/* ---------- 合作方向三块主题牌 ---------- */
.page-contact .deck-grid {
  display: grid;
  gap: 20px;
}

.page-contact .deck {
  position: relative;
  padding: 26px 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .deck:nth-child(1) { border-left: 3px solid var(--cyan); }
.page-contact .deck:nth-child(2) { border-left: 3px solid var(--magenta); }
.page-contact .deck:nth-child(3) { border-left: 3px solid var(--amber); }

.page-contact .deck h3 {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--t-xl);
  letter-spacing: -0.02em;
}

.page-contact .deck-lead {
  margin: 0;
  color: var(--mist);
  font-size: var(--t-md);
}

.page-contact .deck-facts {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-contact .deck-fact {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--pc-line-soft);
  font-size: var(--t-sm);
}

.page-contact .deck-fact-k {
  margin: 0;
  color: var(--mist);
  font-family: var(--f-mono);
}

.page-contact .deck-fact dd {
  margin: 0;
}

.page-contact .deck .fold {
  margin-top: auto;
}

.page-contact .fold-body {
  padding-bottom: 12px;
  color: var(--mist);
  font-size: var(--t-sm);
  border-left: 2px solid rgba(255, 194, 75, 0.4);
  padding-left: 14px;
}

.page-contact .fold-body p {
  margin: 0;
}

.page-contact .fold-toggle {
  align-self: flex-start;
}

/* ---------- 流程 ---------- */
.page-contact .flow-head {
  display: grid;
  gap: 24px;
  margin-bottom: 34px;
}

.page-contact .flow-head .prose {
  margin: 0;
  color: var(--mist);
}

.page-contact .flow-figure {
  margin: 0;
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 30px;
}

.page-contact .flow-list::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(47, 227, 214, 0.12) 55%, var(--magenta));
}

.page-contact .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 18px;
}

.page-contact .flow-no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--amber);
  background: var(--ink);
  color: var(--amber);
  font-size: var(--t-sm);
  letter-spacing: 0.06em;
  z-index: 1;
}

.page-contact .flow-body {
  padding: 4px 0 4px;
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .flow-body h3 {
  margin: 0 0 8px;
  font-family: var(--f-head);
  font-size: var(--t-lg);
  letter-spacing: -0.01em;
}

.page-contact .flow-body p {
  margin: 0 0 8px;
  color: var(--mist);
}

.page-contact .flow-prep {
  display: inline-block;
  padding: 6px 12px;
  border-left: 2px solid var(--cyan);
  background: rgba(47, 227, 214, 0.07);
  font-size: var(--t-sm);
  opacity: 0.62;
  transition: opacity var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .flow-step:hover .flow-prep,
.page-contact .flow-step:focus-within .flow-prep {
  opacity: 1;
  background: rgba(47, 227, 214, 0.14);
}

/* ---------- 两条通道 ---------- */
.page-contact .channel-split {
  display: grid;
  gap: 20px;
}

.page-contact .channel-card {
  padding: 26px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .channel-card--biz {
  border-top: 3px solid var(--amber);
}

.page-contact .channel-card--help {
  border-top: 3px solid var(--cyan);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--t-lg);
  line-height: 1.45;
}

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

.page-contact .channel-item {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  font-size: var(--t-sm);
  color: var(--mist);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--pc-line-soft);
}

.page-contact .channel-item-k {
  color: var(--white);
}

.page-contact .channel-note {
  margin: 0;
  font-size: var(--t-sm);
  color: var(--mist);
}

/* ---------- 联系方式 ---------- */
.page-contact .reach-grid {
  display: grid;
  gap: 24px;
}

.page-contact .contact-cards {
  padding: 8px 22px 20px;
  display: grid;
  gap: 2px;
}

.page-contact .contact-card {
  padding: 18px 0;
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .contact-card:last-child {
  border-bottom: none;
}

.page-contact .contact-label {
  display: block;
  margin-bottom: 8px;
  font-size: var(--t-xs);
  letter-spacing: 0.14em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .contact-value {
  margin: 0;
  font-size: var(--t-lg);
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .contact-link {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  text-decoration: underline;
}

.page-contact .contact-card--note .contact-hours {
  margin: 0 0 12px;
  color: var(--mist);
  font-size: var(--t-sm);
  max-width: 62ch;
}

.page-contact .contact-icp {
  margin: 0;
  font-size: var(--t-sm);
  color: var(--amber);
}

.page-contact .reach-figure {
  margin: 0;
}

/* ---------- 收束 ---------- */
.page-contact .closing-tag {
  position: relative;
  padding: 32px 24px 28px;
  border: 1px solid var(--amber);
  border-radius: var(--r);
  background:
    linear-gradient(140deg, rgba(255, 194, 75, 0.09), rgba(5, 7, 15, 0) 58%),
    var(--console);
  display: grid;
  gap: 14px;
}

.page-contact .closing-title {
  margin: 0;
  font-family: var(--f-head);
  font-size: clamp(24px, 5vw, 40px);
  letter-spacing: -0.02em;
}

.page-contact .closing-line {
  margin: 0;
  max-width: 60ch;
  color: var(--mist);
}

.page-contact .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact {
    padding-top: 96px;
  }

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

  .page-contact .deck:nth-child(2) {
    transform: translateY(-26px);
  }

  .page-contact .deck:nth-child(3) {
    transform: translateY(22px);
  }

  .page-contact .deck:nth-child(1) { min-height: 336px; }
  .page-contact .deck:nth-child(2) { min-height: 372px; }
  .page-contact .deck:nth-child(3) { min-height: 312px; }

  .page-contact .channel-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .closing-tag {
    padding: 44px 40px 38px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 48px;
  }

  .page-contact .hero-plate {
    min-height: 360px;
    padding: 38px 32px;
  }

  .page-contact .plate-caption {
    font-size: var(--t-xl);
  }

  .page-contact .flow-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 40px;
  }

  .page-contact .flow-list {
    padding-left: 8px;
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hero-plate::after {
    animation: none;
    opacity: 0.7;
  }

  .page-contact .flow-prep {
    transition: none;
    opacity: 1;
  }
}