.page-contact {
  --pc-accent-flame: var(--flame);
  --pc-accent-ice: var(--ice);
  --pc-accent-amber: var(--amber);
  --pc-ring: 2px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-contact .contact-intro__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-contact .contact-intro__copy .lede {
  max-width: 46ch;
}

.page-contact .contact-intro__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 52px);
  margin-top: clamp(26px, 4vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-intro__media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(255, 138, 61, 0.24), transparent 62%),
    radial-gradient(110% 110% at 8% 96%, rgba(47, 211, 232, 0.18), transparent 66%),
    var(--layer);
}

.page-contact .contact-intro__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(11, 12, 15, 0) 42%, rgba(11, 12, 15, 0.74));
  pointer-events: none;
}

.page-contact .contact-intro__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 联络渠道 ---------- */
.page-contact .contact-channels__head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: 18px;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(24px, 4vw, 34px);
  background: var(--layer);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--pc-card-accent, var(--flame));
  opacity: 0.62;
  transition: opacity 0.32s var(--ease);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--pc-card-accent, var(--flame));
  box-shadow: var(--shadow-lift);
}

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

.page-contact .contact-card--mail {
  --pc-card-accent: var(--pc-accent-flame);
}

.page-contact .contact-card--phone {
  --pc-card-accent: var(--pc-accent-ice);
}

.page-contact .contact-card--address {
  --pc-card-accent: var(--pc-accent-amber);
}

.page-contact .contact-card__tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  border: 1px solid var(--pc-card-accent, var(--flame));
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--pc-card-accent, var(--flame));
}

.page-contact .contact-card__index {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(38px, 7vw, 52px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--pc-card-accent, var(--flame));
  opacity: 0.26;
}

.page-contact .contact-card__title {
  margin: 0 0 12px;
  font-size: clamp(20px, 3vw, 24px);
  font-style: italic;
  color: var(--bone);
}

.page-contact .contact-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-contact .contact-card__value {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--bone);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-card__meta {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .contact-card__meta li {
  position: relative;
  padding-left: 16px;
}

.page-contact .contact-card__meta li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--pc-card-accent, var(--flame));
}

/* ---------- 响应时段 ---------- */
.page-contact .contact-hours__grid {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-contact .contact-hours__panel .panel__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-contact .contact-hours__panel .panel__body p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-hours__panel .panel__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-contact .contact-hours__media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(255, 75, 31, 0.14), rgba(47, 211, 232, 0.1));
}

.page-contact .contact-hours__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 联络前准备 ---------- */
.page-contact .contact-prep__head {
  max-width: 68ch;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .contact-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  counter-reset: prep;
}

.page-contact .contact-prep__item {
  background: var(--layer);
  padding: clamp(20px, 3vw, 30px);
  counter-increment: prep;
  transition: background 0.28s var(--ease);
}

.page-contact .contact-prep__item:hover {
  background: var(--glass-soft);
}

.page-contact .contact-prep__item::before {
  content: counter(prep, decimal-leading-zero);
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--flame);
}

.page-contact .contact-prep__title {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--bone);
}

.page-contact .contact-prep__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--graphite);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-coop__head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .coop-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-tabs__tab {
  appearance: none;
  padding: 9px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--graphite);
  font-family: inherit;
  font-size: 14.5px;
  line-height: 1.4;
  cursor: pointer;
  transition: color 0.26s var(--ease), border-color 0.26s var(--ease), background 0.26s var(--ease);
}

.page-contact .coop-tabs__tab:hover {
  color: var(--bone);
  border-color: var(--line-strong);
}

.page-contact .coop-tabs__tab[aria-selected="true"] {
  color: var(--bone);
  border-color: var(--flame);
  background: rgba(255, 75, 31, 0.12);
}

.page-contact .coop-tabs__tab:focus-visible {
  outline: var(--pc-ring) solid var(--ice);
  outline-offset: 3px;
}

.page-contact .coop-tabs__panel {
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--flame);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: var(--glass-soft);
}

.page-contact .coop-tabs__panel[hidden] {
  display: none;
}

.page-contact .coop-tabs__panel-title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.6vw, 23px);
  font-style: italic;
  color: var(--bone);
}

.page-contact .coop-tabs__panel > p {
  margin: 0 0 18px;
  max-width: 72ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-contact .coop-tabs__list-detail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--bone);
}

.page-contact .coop-tabs__list-detail li {
  position: relative;
  padding-left: 18px;
}

.page-contact .coop-tabs__list-detail li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 9px;
  height: 1px;
  background: var(--ice);
}

/* ---------- 备案信息条 ---------- */
.page-contact .contact-legal__bar {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px) clamp(20px, 3.4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--glass-soft);
}

.page-contact .contact-legal__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
}

.page-contact .contact-legal__value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: 0.02em;
  color: var(--flame);
}

.page-contact .contact-legal__note {
  margin: 0;
  max-width: 84ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-contact .contact-legal__link {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 211, 232, 0.4);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .contact-legal__link:hover {
  color: var(--bone);
  border-color: var(--bone);
}

.page-contact .contact-legal__link:focus-visible {
  outline: var(--pc-ring) solid var(--ice);
  outline-offset: 2px;
}

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

  .page-contact .contact-legal__bar {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    gap: 10px 24px;
  }

  .page-contact .contact-legal__label {
    grid-column: 1;
  }

  .page-contact .contact-legal__value {
    grid-column: 2;
  }

  .page-contact .contact-legal__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-intro__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: 1.22fr 1fr 1.06fr;
    align-items: start;
  }

  .page-contact .contact-card--phone {
    margin-top: 38px;
  }

  .page-contact .contact-card--address {
    margin-top: 76px;
  }

  .page-contact .contact-hours__grid {
    grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-prep__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-prep__item,
  .page-contact .coop-tabs__tab,
  .page-contact .contact-legal__link {
    transition: none;
  }

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