.page-contact {
  --pc-cell-a: rgba(18, 59, 51, .9);
  --pc-cell-b: rgba(18, 59, 51, .74);
  --pc-cell-c: rgba(18, 59, 51, .58);
  --pc-cell-d: rgba(18, 59, 51, .42);
  --pc-edge: #24443d;
  --pc-cyan-soft: rgba(53, 240, 200, .38);

  position: relative;
  padding-bottom: clamp(40px, 6vw, 76px);
  background:
    radial-gradient(90% 58% at 10% 0%, rgba(53, 240, 200, .07), transparent 62%),
    radial-gradient(66% 46% at 94% 14%, rgba(255, 90, 43, .06), transparent 60%);
}

.page-contact .contact-crumb-row {
  padding-top: clamp(16px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
}

.page-contact .contact-hero-copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(29px, 6vw, 52px);
  line-height: 1.13;
  color: var(--text);
}

.page-contact .contact-hero-copy .lede {
  margin-top: 16px;
  max-width: 50ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-hero-visual {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-xl);
  border: 1px solid var(--pc-edge);
  background: linear-gradient(180deg, #0b241f, #050f0d);
  overflow: hidden;
}

.page-contact .contact-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 46%, rgba(5, 15, 13, .8));
  pointer-events: none;
}

@media (min-width: 920px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

/* ---------- 联系信息板 ---------- */
.page-contact .contact-desk {
  margin-top: clamp(28px, 4.4vw, 52px);
}

.page-contact .desk-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-contact .desk-cell {
  position: relative;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, var(--pc-cell-a), rgba(11, 36, 31, .92));
  overflow: hidden;
}

.page-contact .desk-cell::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), transparent 84%);
  opacity: .72;
}

.page-contact .desk-key {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .desk-value {
  display: block;
  margin-top: 10px;
  width: fit-content;
  max-width: 100%;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 3.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 2px solid var(--pc-cyan-soft);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .desk-value--mail {
  font-size: clamp(14px, 2.9vw, 21px);
}

.page-contact .desk-value:hover,
.page-contact .desk-value:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .desk-note {
  margin-top: 14px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .hours-main .desk-value {
  margin-top: 10px;
}

.page-contact .hours-meter {
  margin-top: 18px;
}

.page-contact .hour-strip {
  position: relative;
  height: 8px;
  border-radius: var(--r-pill);
  background: rgba(36, 68, 61, .72);
  overflow: hidden;
}

.page-contact .hour-strip-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  box-shadow: 0 0 14px var(--cyan-glow);
}

.page-contact .hour-note {
  margin-top: 8px;
}

@media (min-width: 880px) {
  .page-contact .desk-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-contact .desk-cell--mail {
    grid-column: span 6;
  }
  .page-contact .desk-cell--tel {
    grid-column: span 6;
  }
  .page-contact .desk-cell--hours {
    grid-column: span 12;
    display: grid;
    grid-template-columns: auto minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
    gap: 10px clamp(20px, 3vw, 44px);
  }
  .page-contact .desk-cell--hours .desk-note {
    margin-top: 0;
  }
  .page-contact .desk-cell--hours .hours-meter {
    margin-top: 0;
  }
}

/* ---------- 分流卡片 ---------- */
.page-contact .route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .route-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-lg);
  background: var(--pc-cell-a);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}

.page-contact .route-card:nth-child(2) {
  background: var(--pc-cell-b);
}

.page-contact .route-card:nth-child(3) {
  background: var(--pc-cell-c);
}

.page-contact .route-card:nth-child(4) {
  background: var(--pc-cell-d);
}

.page-contact .route-card:hover,
.page-contact .route-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--pc-cyan-soft);
}

.page-contact .route-code {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan-dim);
}

.page-contact .route-name {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.6vw, 22px);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .route-body {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.74;
  color: var(--muted);
}

.page-contact .route-channel {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--pc-edge);
  font-size: 13px;
  line-height: 1.62;
  color: var(--muted);
  transition: color var(--t-mid) var(--ease);
}

.page-contact .route-card:hover .route-channel,
.page-contact .route-card:focus-within .route-channel {
  color: var(--text);
}

.page-contact .route-channel-key {
  display: inline-block;
  margin-right: 6px;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  background: rgba(53, 240, 200, .12);
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .06em;
}

@media (min-width: 620px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 技术沟通 ---------- */
.page-contact .tech-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-contact .sec-head--tight {
  margin-bottom: 0;
}

.page-contact .tech-lede {
  margin-top: 16px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .tech-list {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .tech-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-md);
  background: rgba(11, 36, 31, .74);
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}

.page-contact .tech-item:hover {
  border-color: var(--pc-cyan-soft);
  background: rgba(18, 59, 51, .8);
}

.page-contact .tech-num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--pc-cyan-soft);
  border-radius: var(--r-pill);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-contact .tech-item-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .tech-item-note {
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .tech-tail {
  margin-top: 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--flame);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255, 90, 43, .09);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .tech-visual {
  position: relative;
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-xl);
  background: linear-gradient(160deg, #0b241f, #050f0d);
  overflow: hidden;
}

.page-contact .tech-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-contact .tech-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-contact .tech-visual {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

/* ---------- 联系地址 ---------- */
.page-contact .addr-block {
  position: relative;
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 130% at 86% 8%, rgba(53, 240, 200, .1), transparent 62%),
    linear-gradient(168deg, #0b241f, #050f0d);
  overflow: hidden;
}

.page-contact .addr-grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(36, 68, 61, .44) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 68, 61, .44) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120% 100% at 78% 30%, #000 0%, transparent 70%);
  mask-image: radial-gradient(120% 100% at 78% 30%, #000 0%, transparent 70%);
}

.page-contact .addr-body {
  position: relative;
  padding: clamp(24px, 4vw, 46px);
}

.page-contact .addr-value {
  display: block;
  margin-top: 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 4vw, 32px);
  font-style: normal;
  letter-spacing: -0.01em;
  line-height: 1.36;
  color: var(--text);
}

.page-contact .addr-note {
  margin-top: 14px;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作共建 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-contact .coop-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--pc-edge);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(18, 59, 51, .86), rgba(11, 36, 31, .74));
  overflow: hidden;
}

.page-contact .coop-card::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 240, 200, .15), transparent 68%);
  pointer-events: none;
}

.page-contact .coop-key {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-dim);
}

.page-contact .coop-name {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .coop-body {
  position: relative;
  margin-top: 12px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .coop-tail {
  margin-top: clamp(18px, 2.6vw, 26px);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-cyan-soft);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--cyan);
}

@media (min-width: 760px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 进场提示 ---------- */
.page-contact [data-reveal] {
  transition: border-color var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}

.page-contact [data-reveal].is-inview {
  border-color: rgba(53, 240, 200, .34);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-card,
  .page-contact .tech-item,
  .page-contact .desk-value,
  .page-contact .inline-link,
  .page-contact [data-reveal] {
    transition: none;
  }
  .page-contact .route-card:hover,
  .page-contact .route-card:focus-within {
    transform: none;
  }
}
</main>