.page-contact {
  --pc-gap: clamp(18px, 2.6vw, 32px);
  --pc-block: clamp(52px, 8vw, 104px);
  --pc-hair: 1px solid var(--grid);
  display: block;
  background: var(--abyss);
  color: var(--bone);
}

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

.page-contact .pc-section {
  padding-block: var(--pc-block);
  padding-inline: var(--gutter);
}

.page-contact .pc-section--tight {
  padding-block: clamp(36px, 5vw, 64px);
}

.page-contact .pc-section--slate {
  background: var(--slate);
  border-top: var(--pc-hair);
  border-bottom: var(--pc-hair);
}

.page-contact .section-head {
  margin-bottom: clamp(24px, 3.4vw, 44px);
}

.page-contact .pc-lede {
  max-width: 62ch;
  margin-top: 12px;
  color: var(--ash);
}

/* ---------- 首屏框景 ---------- */

.page-contact .pc-hero {
  padding-block: clamp(28px, 5vw, 64px) clamp(40px, 6vw, 80px);
  padding-inline: var(--gutter);
}

.page-contact .pc-hero-frame {
  border: var(--pc-hair);
  background: linear-gradient(168deg, rgba(16, 48, 74, 0.9) 0%, rgba(6, 26, 43, 0.98) 62%);
}

.page-contact .pc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 40px);
}

.page-contact .pc-hero-main .display {
  margin-top: 14px;
  max-width: 15ch;
}

.page-contact .pc-hero-cta {
  margin-top: 20px;
  align-self: flex-start;
}

.page-contact .pc-hero-side {
  display: flex;
  flex-direction: column;
  border-top: var(--pc-hair);
  padding-top: 20px;
}

.page-contact .pc-side-eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--clay);
  text-transform: uppercase;
}

.page-contact .pc-facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-contact .pc-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: var(--pc-hair);
  padding-top: 10px;
}

.page-contact .pc-fact-num {
  font-family: var(--mono);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cyan);
  line-height: 1.1;
}

.page-contact .pc-fact-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ash);
}

/* ---------- 合作方向卡片 ---------- */

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

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: 0;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

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

.page-contact .pc-card .card-title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.3;
}

.page-contact .pc-card .card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ash);
}

.page-contact .pc-card-fit {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
  border-top: 1px dashed var(--grid);
  padding-top: 12px;
  opacity: 0.7;
  transition: opacity 200ms ease;
}

.page-contact .pc-card:hover .pc-card-fit,
.page-contact .pc-card:focus-within .pc-card-fit {
  opacity: 1;
}

.page-contact .pc-fit-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--clay);
}

.page-contact .pc-fit-val {
  font-size: 13px;
  line-height: 1.6;
  color: var(--bone);
}

.page-contact .pc-card .card-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  border-top: var(--pc-hair);
  padding-top: 12px;
  margin: 4px 0 0;
}

.page-contact .pc-foot-text {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ash);
}

.page-contact .pc-inline-link {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ash);
}

.page-contact .pc-inline-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(86, 224, 208, 0.4);
}

.page-contact .pc-inline-link a:hover {
  border-bottom-color: var(--coral);
  color: var(--coral);
}

/* ---------- 四阶段流程 ---------- */

.page-contact .pc-stages {
  list-style: none;
  margin: 0 0 clamp(32px, 5vw, 56px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .pc-stage {
  position: relative;
  padding-left: 24px;
  border-left: var(--pc-hair);
}

.page-contact .pc-stage::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--clay);
}

.page-contact .pc-stage-num {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-contact .pc-stage-title {
  margin: 8px 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.35;
}

.page-contact .pc-stage-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
}

.page-contact .pc-stage-meta {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-contact .pc-process-fig {
  margin: 0;
  border: var(--pc-hair);
  background: var(--abyss);
}

.page-contact .pc-process-fig img {
  width: 100%;
  aspect-ratio: 3 / 2;
}

/* ---------- 材料清单 ---------- */

.page-contact .pc-mats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .pc-mat {
  border: var(--pc-hair);
  border-radius: 0;
  background: rgba(16, 48, 74, 0.55);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .pc-checklist li {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .pc-checklist li::before {
  content: "";
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 1px solid var(--cyan);
  background: rgba(86, 224, 208, 0.1);
}

.page-contact .pc-mat-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ash);
  border-left: 1px solid var(--clay);
  padding-left: 12px;
}

/* ---------- 常见疑问 ---------- */

.page-contact .pc-faq {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .pc-faq .accordion {
  border: var(--pc-hair);
  border-radius: 0;
  background: rgba(16, 48, 74, 0.4);
}

.page-contact .pc-faq-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ash);
}

.page-contact .pc-faq-text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(86, 224, 208, 0.4);
}

.page-contact .pc-faq-text a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 联系信息区 ---------- */

.page-contact .pc-contacts {
  padding-block: clamp(40px, 6vw, 80px) var(--pc-block);
}

.page-contact .pc-night-fig {
  margin: 0 0 clamp(28px, 4vw, 48px);
  border: var(--pc-hair);
  background: var(--abyss);
}

.page-contact .pc-night-fig img {
  width: 100%;
  aspect-ratio: 14 / 9;
  object-position: center 60%;
}

.page-contact .pc-slab {
  background: var(--bone);
  color: var(--abyss);
  border: 1px solid var(--bone);
  padding: clamp(24px, 4vw, 48px);
}

.page-contact .pc-slab-head .eyebrow {
  color: var(--clay);
}

.page-contact .pc-slab-head .section-title {
  color: var(--abyss);
  margin-top: 10px;
}

.page-contact .pc-slab-lede {
  max-width: 58ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .pc-slab-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: clamp(26px, 3.6vw, 40px);
  border-top: 1px solid rgba(6, 26, 43, 0.25);
  padding-top: clamp(22px, 3vw, 32px);
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-left: 2px solid var(--abyss);
  padding-left: 16px;
}

.page-contact .pc-ch-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--clay);
}

.page-contact .pc-ch-val {
  font-family: var(--mono);
  font-size: clamp(15px, 1.9vw, 19px);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--abyss);
  word-break: break-word;
}

.page-contact .pc-channel--addr .pc-ch-val {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  letter-spacing: 0;
}

.page-contact .pc-ch-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .pc-map {
  width: 100%;
  max-width: 260px;
  height: auto;
  margin-top: 6px;
  color: var(--slate);
}

.page-contact .pc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: clamp(28px, 3.6vw, 40px);
  border-top: 1px solid rgba(6, 26, 43, 0.25);
  padding-top: 20px;
}

.page-contact .pc-links a {
  font-size: 13.5px;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid rgba(6, 26, 43, 0.3);
}

.page-contact .pc-links a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 平板与桌面 ---------- */

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

  .page-contact .pc-slab-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-channel--addr {
    grid-column: 1 / -1;
  }

  .page-contact .pc-checkout-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .pc-hero-side {
    border-top: 0;
    border-left: var(--pc-hair);
    padding-top: 0;
    padding-left: clamp(20px, 2.6vw, 32px);
  }

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

  .page-contact .pc-stages {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-top: var(--pc-hair);
  }

  .page-contact .pc-stage {
    border-left: 0;
    border-right: var(--pc-hair);
    padding: 30px clamp(16px, 2vw, 24px) 0 0;
  }

  .page-contact .pc-stage:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .pc-stage::before {
    left: -5px;
    top: -5px;
  }

  .page-contact .pc-slab-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }

  .page-contact .pc-channel--addr {
    grid-column: auto;
  }
}

@media (min-width: 1200px) {
  .page-contact .pc-hero-main .display {
    max-width: 13ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-card {
    transition: none;
  }

  .page-contact .pc-card:hover {
    transform: none;
  }
}
<<<END>>>