.page-contact {
  --pc-pad: clamp(18px, 4vw, 40px);
  --pc-gap: clamp(18px, 2.6vw, 30px);
  --pc-section-y: clamp(52px, 8vw, 104px);
  --pc-hair: rgba(47, 224, 240, 0.16);
  --pc-hair-hot: rgba(255, 107, 44, 0.22);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: clip;
}

.page-contact .pc-wrap {
  position: relative;
  z-index: 1;
  max-width: var(--wide);
  margin-inline: auto;
  padding-inline: var(--pc-pad);
}

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

.page-contact .pc-section--tight {
  padding-block: clamp(32px, 5vw, 60px);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--mono);
}

.page-contact .h2 {
  margin: 12px 0 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-contact .h3 {
  margin: 0;
  line-height: 1.35;
}

.page-contact .lede {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--ink-2);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .muted {
  color: var(--ink-2);
}

.page-contact .pc-head {
  max-width: 780px;
}

.page-contact .breadcrumbs__sep {
  margin-inline: 8px;
  color: var(--line);
}

.page-contact .pc-link {
  color: var(--cold);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 240, 0.34);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .pc-link:hover,
.page-contact .pc-link:focus-visible {
  color: var(--cold-2);
  border-bottom-color: var(--cold-2);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-top {
  position: relative;
  padding-block: calc(var(--header-h) + clamp(24px, 4vw, 52px)) clamp(42px, 6vw, 74px);
  background:
    radial-gradient(900px 460px at 76% -10%, rgba(47, 224, 240, 0.16), transparent 64%),
    radial-gradient(700px 400px at 6% 12%, rgba(255, 107, 44, 0.1), transparent 68%);
  overflow: hidden;
}

.page-contact .contact-top::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(42, 58, 92, 0.34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 58, 92, 0.34) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(circle at 50% 8%, #000 0%, transparent 74%);
  mask-image: radial-gradient(circle at 50% 8%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-contact .contact-top__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
  margin-top: clamp(20px, 3.4vw, 34px);
}

.page-contact .contact-top__grid > * {
  min-width: 0;
}

.page-contact .display {
  margin: 14px 0 0;
  font-size: clamp(32px, 5.6vw, 54px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
}

/* ---------- 联系卡片 ---------- */

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(32px, 5vw, 56px);
}

.page-contact .contact-cards > * {
  min-width: 0;
}

.page-contact .ccard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(22, 35, 61, 0.92) 0%, rgba(11, 19, 38, 0.96) 62%);
  box-shadow:
    inset 0 1px 0 rgba(143, 244, 255, 0.07),
    0 30px 60px -46px rgba(0, 0, 0, 0.95);
  overflow: hidden;
}

.page-contact .ccard::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cold) 0%, rgba(47, 224, 240, 0) 74%);
}

.page-contact .ccard--hot::before {
  background: linear-gradient(90deg, var(--hot) 0%, rgba(255, 107, 44, 0) 74%);
}

.page-contact .ccard__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .ccard__title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .ccard__field {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(5, 10, 24, 0.74);
}

.page-contact .ccard__value {
  flex: 1 1 210px;
  min-width: 0;
  font-size: clamp(14px, 1.7vw, 17px);
  line-height: 1.5;
  color: var(--cold-2);
  overflow-wrap: anywhere;
}

.page-contact .ccard--hot .ccard__value {
  color: var(--hot-2);
}

.page-contact .ccard p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
}

.page-contact .ccard__note {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-2);
}

/* ---------- 媒体块 ---------- */

.page-contact .pc-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  overflow: hidden;
  box-shadow: inset 0 0 60px rgba(47, 224, 240, 0.07);
}

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

.page-contact .pc-media--scan::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(143, 244, 255, 0.06) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-contact .pc-media__label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 1;
  max-width: calc(100% - 32px);
  padding: 7px 14px;
  border: 1px solid var(--pc-hair);
  border-radius: 999px;
  background: rgba(5, 10, 24, 0.84);
  color: var(--cold-2);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
}

/* ---------- 事项分类 ---------- */

.page-contact .contact-topics {
  border-top: 1px solid var(--line);
}

.page-contact .topic-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-contact .topic-nav__link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-contact .topic-nav__link:hover,
.page-contact .topic-nav__link:focus-visible,
.page-contact .topic-nav__link.is-active {
  border-color: var(--cold);
  background: rgba(47, 224, 240, 0.08);
  color: var(--cold);
}

.page-contact .topic-nav__link--hot:hover,
.page-contact .topic-nav__link--hot:focus-visible,
.page-contact .topic-nav__link--hot.is-active {
  border-color: var(--hot);
  background: rgba(255, 107, 44, 0.1);
  color: var(--hot-2);
}

.page-contact .topic-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-contact .topic-list > * {
  min-width: 0;
}

.page-contact .topic-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  scroll-margin-top: calc(var(--header-h) + 28px);
  transition: border-color 0.26s var(--ease), background 0.26s var(--ease);
}

.page-contact .topic-card:hover {
  border-color: var(--pc-hair);
  background: var(--raise);
}

.page-contact .topic-card--hot:hover {
  border-color: var(--pc-hair-hot);
}

.page-contact .topic-card > .chip {
  align-self: flex-start;
}

.page-contact .topic-card .h3 {
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .topic-card > p.muted {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .topic-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .topic-card__list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .topic-card__list .mono {
  color: var(--cold);
  font-size: 12px;
  line-height: 2.1;
  letter-spacing: 0.06em;
}

.page-contact .topic-card--hot .topic-card__list .mono {
  color: var(--hot-2);
}

/* ---------- 办公地址 ---------- */

.page-contact .place-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-contact .place-grid > * {
  min-width: 0;
}

.page-contact .place-address {
  margin: 18px 0 0;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cold);
  border-radius: var(--r-sm);
  background: var(--panel);
  color: var(--ink);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.7;
}

.page-contact .place-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.page-contact .place-copy > .muted {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 响应时段 ---------- */

.page-contact .sla-list {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-contact .sla-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(20px, 3vw, 30px);
  border-bottom: 1px dashed var(--line);
}

.page-contact .sla-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .sla-item__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--pc-hair);
  border-radius: 50%;
  background: rgba(47, 224, 240, 0.07);
  color: var(--cold);
  font-size: 14px;
}

.page-contact .sla-item > div {
  min-width: 0;
}

.page-contact .sla-item .h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
}

.page-contact .sla-item .muted {
  margin: 10px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 合作洽谈 ---------- */

.page-contact .coop-panel {
  padding: clamp(26px, 4vw, 50px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(760px 340px at 88% 0%, rgba(255, 107, 44, 0.13), transparent 68%),
    var(--panel);
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 30px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

.page-contact .coop-grid > * {
  min-width: 0;
}

.page-contact .coop-item {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .coop-item .h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
}

.page-contact .coop-item .muted {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.82;
}

.page-contact .coop-panel__foot {
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-contact .coop-panel__foot .mono {
  color: var(--hot-2);
  overflow-wrap: anywhere;
}

/* ---------- 站点信息 ---------- */

.page-contact .legal-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(11, 19, 38, 0.72);
}

.page-contact .legal-strip__line {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .legal-strip__line .mono {
  color: var(--ink);
}

.page-contact .legal-strip__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.page-contact .legal-link {
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .legal-link:hover,
.page-contact .legal-link:focus-visible {
  color: var(--cold);
  border-bottom-color: var(--cold);
}

/* ---------- 动画兜底 ---------- */

.page-contact [data-reveal] {
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .legal-strip {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-contact .legal-strip__links {
    justify-content: flex-end;
  }
}

@media (min-width: 820px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

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

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

@media (min-width: 940px) {
  .page-contact .contact-top__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 58px);
  }

  .page-contact .place-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .place-grid .place-media {
    order: 2;
  }
}

@media (min-width: 1160px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}