.page-contact {
  --pc-line: rgba(10, 26, 43, .16);
  --pc-line-light: rgba(169, 188, 203, .18);
  overflow-x: clip;
}

.page-contact .pc-crumb {
  padding: 22px 0 4px;
}

.page-contact .pc-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .82rem;
  color: var(--mute);
}

.page-contact .pc-crumb .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
}

.page-contact .pc-crumb .breadcrumb a:hover {
  color: var(--ice);
}

.page-contact .pc-crumb .breadcrumb__sep {
  opacity: .5;
}

.page-contact .pc-crumb .breadcrumb__current {
  color: var(--white);
}

/* ---------- 首屏分屏 ---------- */
.page-contact .pc-hero {
  padding-top: clamp(14px, 2vw, 26px);
}

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

.page-contact .pc-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 3.2vw, 42px);
  border-radius: var(--r-xl);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 26px 64px -34px rgba(0, 0, 0, .78);
}

.page-contact .pc-card::before {
  content: "";
  position: absolute;
  inset: -64px;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(10, 26, 43, .1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 26, 43, .1) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-mask-image: radial-gradient(ellipse at 92% 4%, #000 0%, rgba(0, 0, 0, .32) 44%, transparent 74%);
  mask-image: radial-gradient(ellipse at 92% 4%, #000 0%, rgba(0, 0, 0, .32) 44%, transparent 74%);
  animation: pc-grid-drift 30s linear infinite;
}

@keyframes pc-grid-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(32px, 32px, 0); }
}

.page-contact .pc-card .eyebrow {
  color: rgba(10, 26, 43, .6);
}

.page-contact .pc-card h1 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.2vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .pc-lead {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: clamp(.95rem, 1.4vw, 1.02rem);
  line-height: 1.78;
  color: rgba(10, 26, 43, .78);
}

.page-contact .pc-channels {
  margin-top: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-channel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 14px;
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-channel__label {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: rgba(10, 26, 43, .55);
}

.page-contact .pc-mail {
  min-width: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 2.5vw, 1.7rem);
  line-height: 1.22;
  letter-spacing: -.02em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-tel {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.2vw, 1.44rem);
  letter-spacing: .02em;
  color: var(--ink);
}

.page-contact .pc-addr {
  grid-column: 1 / -1;
  font-size: .98rem;
  line-height: 1.6;
  color: var(--ink);
}

.page-contact .pc-copy {
  justify-self: end;
  flex: 0 0 auto;
  padding: 7px 15px;
  border: 1px solid rgba(10, 26, 43, .26);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: .78rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .pc-copy:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-contact .pc-copy:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-contact .pc-copy.is-copied {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.page-contact .pc-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 右侧咨询清单 ---------- */
.page-contact .pc-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(18px, 2.4vw, 30px);
  border-radius: var(--r-xl);
  border: 1px solid rgba(111, 227, 225, .16);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(47, 123, 217, .28), transparent 62%),
    linear-gradient(165deg, var(--night-2) 0%, var(--night) 74%);
  color: var(--white);
}

.page-contact .pc-panel__media {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--night);
}

.page-contact .pc-panel__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  opacity: .84;
}

.page-contact .pc-media-tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  backdrop-filter: blur(4px);
}

.page-contact .pc-panel__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .pc-topics {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-topic {
  padding: 14px 0;
  border-top: 1px solid var(--pc-line-light);
}

.page-contact .pc-topic:last-child {
  border-bottom: 1px solid var(--pc-line-light);
}

.page-contact .pc-topic a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: .98rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .pc-topic a::after {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 1px;
  background: var(--ice);
  transition: width .22s var(--ease);
}

.page-contact .pc-topic a:hover {
  color: var(--ice);
}

.page-contact .pc-topic a:hover::after {
  width: 30px;
}

.page-contact .pc-topic p {
  margin: 6px 0 0;
  font-size: .85rem;
  line-height: 1.68;
  color: var(--mute);
}

/* ---------- 咨询前准备 ---------- */
.page-contact .pc-prep__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  align-items: center;
}

.page-contact .pc-prep__media {
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--pc-line-light);
}

.page-contact .pc-prep__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 900 / 650;
  object-fit: cover;
}

.page-contact .pc-prep__lead {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .pc-checklist {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 15px;
  border-radius: var(--r-md);
  border: 1px solid rgba(169, 188, 203, .16);
  background: rgba(14, 42, 70, .62);
  color: var(--white);
  font-size: .9rem;
  line-height: 1.68;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .pc-check:hover {
  border-color: rgba(111, 227, 225, .45);
}

.page-contact .pc-check input {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--ice);
  cursor: pointer;
}

.page-contact .pc-check:has(input:checked) {
  background: rgba(63, 174, 122, .14);
  border-color: rgba(63, 174, 122, .55);
}

.page-contact .pc-check strong {
  color: var(--ice);
  font-weight: 700;
}

.page-contact .pc-prep__tip {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--yellow);
  font-size: .86rem;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 合作与洽谈 ---------- */
.page-contact .pc-coop__head {
  max-width: 64ch;
}

.page-contact .pc-coop__head p:not(.eyebrow) {
  margin: 12px 0 0;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .pc-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .pc-coop-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(169, 188, 203, .16);
  background: var(--night-2);
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .pc-coop-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--pc-accent, var(--ice));
}

.page-contact .pc-coop-card:nth-child(1) { --pc-accent: var(--blue); }
.page-contact .pc-coop-card:nth-child(2) { --pc-accent: var(--green); }
.page-contact .pc-coop-card:nth-child(3) { --pc-accent: var(--yellow); }

.page-contact .pc-coop-card:hover {
  transform: translateY(-4px);
  border-color: rgba(111, 227, 225, .4);
}

.page-contact .pc-coop-card .tag {
  align-self: flex-start;
}

.page-contact .pc-coop-card h3 {
  margin: 2px 0 0;
  font-family: var(--font-sans);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .pc-coop-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--mute);
}

.page-contact .pc-coop__cta {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 16px 18px;
  border-radius: var(--r-md);
  border-left: 3px solid var(--ice);
  background: rgba(14, 42, 70, .55);
  font-size: .9rem;
  line-height: 1.74;
  color: var(--mute);
}

/* ---------- 地址与备案 ---------- */
.page-contact .pc-info__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

.page-contact .pc-address {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  line-height: 1.42;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .pc-info__note {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .pc-inline-link {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 2px;
  font-size: .9rem;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 227, 225, .35);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-contact .pc-facts-card {
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--r-xl);
  color: var(--ink);
  background: var(--paper);
}

.page-contact .pc-facts-card__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .18em;
  color: rgba(10, 26, 43, .6);
}

.page-contact .pc-facts {
  margin: 0;
}

.page-contact .pc-facts > div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(10, 26, 43, .18);
}

.page-contact .pc-facts > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .pc-facts dt {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: rgba(10, 26, 43, .58);
}

.page-contact .pc-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .88rem;
  line-height: 1.54;
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* ---------- 断点 ---------- */
@media (max-width: 520px) {
  .page-contact .pc-channel {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .pc-copy {
    justify-self: start;
  }
}

@media (max-width: 420px) {
  .page-contact .pc-facts > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (min-width: 820px) {
  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .pc-info__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 920px) {
  .page-contact .pc-prep__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }
}

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

  .page-contact .pc-coop-card:hover {
    transform: none;
  }

  .page-contact .pc-topic a::after {
    transition: none;
  }
}