.page-contact .breadcrumbs {
  padding-block: 18px 0;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-inline: 10px;
  color: var(--crease);
}

.page-contact .breadcrumbs__item a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumbs__item a:hover,
.page-contact .breadcrumbs__item a:focus-visible {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--chalk);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-block: 28px 56px;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: end;
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body-dim);
}

.page-contact .contact-hero__hint {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}

.page-contact .contact-hero__figure {
  margin: 0;
  padding: 8px;
  background: var(--deep-green);
  border: 1px solid var(--crease);
  position: relative;
}

.page-contact .contact-hero__figure::after {
  content: "";
  position: absolute;
  inset-block-end: -1px;
  inset-inline-start: 0;
  width: 96px;
  height: 3px;
  background: var(--neon-cyan);
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 横向联系卡 ---------- */

.page-contact .contact-rack-section {
  padding-block: 0 64px;
}

.page-contact .contact-rack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: var(--gutter);
  border: 1px solid var(--crease);
  background-color: var(--ink-black);
  background-image:
    repeating-linear-gradient(90deg, rgb(53 242 208 / 0.05) 0 1px, transparent 1px 48px),
    linear-gradient(160deg, var(--deep-green) 0%, var(--ink-black) 74%);
}

.page-contact .contact-slot {
  position: relative;
  padding: 26px 22px 30px;
  background: var(--pitch-green);
  border: 1px solid var(--crease);
  box-shadow: 8px 8px 0 rgb(0 0 0 / 0.38);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-contact .contact-slot::after {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  width: 22px;
  height: 22px;
  background: linear-gradient(225deg, var(--ink-black) 0 49%, var(--crease) 49% 100%);
}

.page-contact .contact-slot:hover,
.page-contact .contact-slot:focus-within,
.page-contact .contact-slot:focus-visible {
  transform: translateY(-3px);
  box-shadow: 10px 12px 0 rgb(0 0 0 / 0.5);
  outline: none;
}

.page-contact .contact-slot:focus-visible {
  box-shadow: 10px 12px 0 rgb(0 0 0 / 0.5), 0 0 0 2px var(--neon-cyan);
}

.page-contact .contact-slot__index {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .contact-slot__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .contact-slot__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-dim);
}

.page-contact .contact-value-lg,
.page-contact .contact-value-md {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.28;
  overflow-wrap: anywhere;
  color: var(--neon-cyan);
}

.page-contact .contact-value-lg {
  font-size: clamp(17px, 3.4vw, 24px);
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-value-md {
  font-size: clamp(15px, 2.8vw, 18px);
  color: var(--chalk);
}

.page-contact .contact-slot--mail {
  background: var(--paper);
  border-color: var(--mist);
  color: var(--on-paper);
}

.page-contact .contact-slot--mail::after {
  background: linear-gradient(225deg, var(--ink-black) 0 49%, var(--mist) 49% 100%);
}

.page-contact .contact-slot--mail .contact-slot__index {
  color: #5d746b;
}

.page-contact .contact-slot--mail .contact-slot__title {
  color: var(--on-paper);
}

.page-contact .contact-slot--mail .contact-value-lg {
  color: var(--on-paper);
}

.page-contact .contact-slot--mail .contact-slot__note {
  color: #3c554b;
}

.page-contact .contact-slot--phone {
  background: var(--deep-green);
}

.page-contact .contact-slot--addr {
  background: var(--ink-black);
}

/* ---------- 对接节奏 ---------- */

.page-contact .contact-flow {
  padding-block: 0 72px;
}

.page-contact .contact-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-contact .contact-flow__lead {
  margin: 18px 0 0;
  max-width: 52ch;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-dim);
}

.page-contact .contact-steps {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-steps__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding-block: 18px;
  border-block-start: 1px solid var(--crease);
}

.page-contact .contact-steps__item:last-child {
  border-block-end: 1px solid var(--crease);
}

.page-contact .contact-steps__num {
  padding-block-start: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--neon-cyan);
}

.page-contact .contact-steps__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .contact-steps__text {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-dim);
}

.page-contact .contact-flow__figure {
  margin: 0;
  padding: 10px;
  align-self: start;
  background: var(--ink-black);
  border: 1px solid var(--crease);
}

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

/* ---------- 合作方向 ---------- */

.page-contact .contact-partners {
  padding-block: 0 72px;
}

.page-contact .section-head__lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.75;
  color: var(--body-dim);
}

.page-contact .partner-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-block-start: 36px;
}

.page-contact .partner-card {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--pitch-green);
  border: 1px solid var(--crease);
  border-inline-start: 3px solid var(--neon-cyan);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .partner-card:nth-child(2) {
  border-inline-start-color: var(--warm-orange);
}

.page-contact .partner-card:nth-child(3) {
  border-inline-start-color: var(--signal);
}

.page-contact .partner-card:nth-child(4) {
  border-inline-start-color: var(--mist);
}

.page-contact .partner-card:hover,
.page-contact .partner-card:focus-within,
.page-contact .partner-card:focus-visible {
  background: var(--deep-green);
  transform: translateY(-3px);
  outline: none;
}

.page-contact .partner-card:focus-visible {
  box-shadow: 0 0 0 2px var(--neon-cyan);
}

.page-contact .partner-card__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--chalk);
}

.page-contact .partner-card__text {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.74;
  color: var(--body-dim);
}

.page-contact .partner-card__more {
  margin: 0;
  max-height: none;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 1;
  transition: max-height 240ms var(--ease), opacity 240ms var(--ease),
    margin-block-start 240ms var(--ease);
}

.page-contact .contact-partners__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin: 26px 0 0;
}

/* ---------- 反馈与纠错 ---------- */

.page-contact .contact-report {
  padding-block: 0 72px;
}

.page-contact .report-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-block-start: 32px;
  background: var(--crease);
  border: 1px solid var(--crease);
}

.page-contact .report-item {
  padding: 24px 22px 28px;
  background: var(--ink-black);
}

.page-contact .report-item__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .report-item__text {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.74;
  color: var(--body-dim);
}

.page-contact .contact-report__foot {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 备案窄条 ---------- */

.page-contact .contact-legal {
  padding-block: 0 56px;
}

.page-contact .legal-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  padding: 16px 20px;
  border: 1px solid var(--crease);
  background: var(--deep-green);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--body-dim);
}

.page-contact .legal-strip__brand {
  margin: 0;
  font-weight: 700;
  color: var(--chalk);
}

.page-contact .legal-strip__item,
.page-contact .legal-strip__link {
  margin: 0;
}

.page-contact .contact-partners__foot .link-arrow,
.page-contact .contact-report__foot .link-arrow,
.page-contact .legal-strip__link .link-arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--crease);
  padding-block-end: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-partners__foot .link-arrow:hover,
.page-contact .contact-report__foot .link-arrow:hover,
.page-contact .legal-strip__link .link-arrow:hover,
.page-contact .contact-partners__foot .link-arrow:focus-visible,
.page-contact .contact-report__foot .link-arrow:focus-visible,
.page-contact .legal-strip__link .link-arrow:focus-visible {
  color: var(--warm-orange);
  border-bottom-color: var(--warm-orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-report .report-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }

  .page-contact .contact-rack {
    grid-template-columns: 1.25fr 1fr 0.88fr;
    gap: 22px;
    align-items: start;
    padding: 34px 30px 40px;
  }

  .page-contact .contact-slot--phone {
    margin-block-start: 30px;
  }

  .page-contact .contact-slot--addr {
    margin-block-start: 66px;
  }

  .page-contact .contact-flow__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .partner-flow {
    grid-template-columns: 1fr 1fr;
    gap: 26px 24px;
    padding-block-end: 56px;
  }

  .page-contact .partner-flow > :nth-child(even) {
    margin-block-start: 54px;
  }

  .page-contact .partner-card__more {
    max-height: 0;
    opacity: 0;
    margin: 0;
  }

  .page-contact .partner-card:hover .partner-card__more,
  .page-contact .partner-card:focus-within .partner-card__more {
    max-height: 8em;
    opacity: 1;
    margin-block-start: 12px;
  }

  .page-contact .contact-report .report-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-slot,
  .page-contact .partner-card,
  .page-contact .partner-card__more,
  .page-contact .link-arrow {
    transition: none;
  }

  .page-contact .contact-slot:hover,
  .page-contact .contact-slot:focus-within,
  .page-contact .partner-card:hover,
  .page-contact .partner-card:focus-within {
    transform: none;
  }
}