.page-contact {
  --pc-hair: rgba(212, 166, 83, 0.26);
  --pc-hair-soft: rgba(233, 236, 239, 0.09);
  background-color: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: var(--space-2) 0 var(--space-5);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(212, 166, 83, 0.10) 0%, transparent 58%),
    radial-gradient(90% 80% at 6% 100%, rgba(140, 151, 163, 0.14) 0%, transparent 62%),
    var(--ink);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(233, 236, 239, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(233, 236, 239, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 0%, transparent 76%);
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-contact .pc-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

.page-contact .pc-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: var(--space-2) 0 var(--space-3);
  color: var(--paper);
}

.page-contact .pc-hero__text {
  max-width: 60ch;
  color: var(--fog);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 var(--space-3);
}

.page-contact .pc-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: 0;
  font-size: 15px;
}

.page-contact .pc-hero__links a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-hair);
  padding-bottom: 2px;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-contact .pc-hero__links a:hover,
.page-contact .pc-hero__links a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .pc-hero__fig {
  margin: 0;
  position: relative;
}

.page-contact .pc-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 7 / 4;
  border: 1px solid var(--pc-hair);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .pc-hero__fig figcaption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fog);
}

/* ---------- 官方联络通道 ---------- */
.page-contact .pc-channels__grid {
  display: grid;
  gap: var(--space-5);
}

.page-contact .pc-channels h2,
.page-contact .pc-brief h2,
.page-contact .pc-routes h2,
.page-contact .pc-verify h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: var(--space-2) 0 var(--space-3);
}

.page-contact .pc-channels__intro {
  max-width: 58ch;
  color: var(--fog);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 var(--space-4);
}

.page-contact .pc-letterhead {
  border-left: 1px solid var(--gold);
  padding-left: var(--space-3);
}

.page-contact .pc-letterhead__list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-letterhead__row {
  display: grid;
  gap: 6px;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--pc-hair-soft);
}

.page-contact .pc-letterhead__row dt {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fog);
  text-transform: uppercase;
}

.page-contact .pc-letterhead__row dd {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .pc-mail,
.page-contact .pc-tel {
  font-size: clamp(17px, 3.2vw, 22px);
  color: var(--gold-hi);
  letter-spacing: 0.03em;
}

.page-contact .pc-letterhead__row--primary .pc-mail {
  color: var(--paper);
}

.page-contact .pc-letterhead__note {
  font-size: 14px;
  color: var(--fog);
  line-height: 1.7;
}

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

.page-contact .pc-channels__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  background-color: var(--panel);
  border: 1px solid var(--pc-hair-soft);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 34px 100%, 0 calc(100% - 34px));
}

.page-contact .pc-channels__fig .media-frame__caption {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fog);
}

/* ---------- 提交材料清单 ---------- */
.page-contact .pc-brief__inner {
  max-width: 880px;
}

.page-contact .pc-brief__lead {
  max-width: 62ch;
  color: rgba(233, 236, 239, 0.78);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 var(--space-4);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-contact .pc-check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: var(--space-2);
  align-items: start;
  padding: var(--space-2) var(--space-2);
  border-left: 1px solid var(--pc-hair-soft);
  cursor: pointer;
  transition: background-color var(--t) var(--ease), border-left-color var(--t) var(--ease);
}

.page-contact .pc-check:hover {
  background-color: rgba(212, 166, 83, 0.06);
  border-left-color: var(--gold);
}

.page-contact .pc-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .pc-check__box {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1.5px solid var(--pc-hair);
  background-color: transparent;
  display: grid;
  place-items: center;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-contact .pc-check__box::after {
  content: "";
  width: 10px;
  height: 5px;
  border-left: 2px solid var(--ink-on-gold);
  border-bottom: 2px solid var(--ink-on-gold);
  transform: rotate(-45deg) translate(1px, -1px);
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease);
}

.page-contact .pc-check input:checked + .pc-check__box {
  background-color: var(--gold);
  border-color: var(--gold-hi);
}

.page-contact .pc-check input:checked + .pc-check__box::after {
  opacity: 1;
}

.page-contact .pc-check input:focus-visible + .pc-check__box {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-contact .pc-check__body {
  display: grid;
  gap: 4px;
}

.page-contact .pc-check__body strong {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .pc-check__body span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-contact .pc-complete {
  display: none;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin: var(--space-3) 0 0;
  padding: var(--space-2) var(--space-3);
  border: 1px dashed var(--gold);
  color: var(--gold-hi);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .pc-complete .mono {
  color: var(--ink-on-gold);
  background-color: var(--gold);
  padding: 2px 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .pc-checklist:has(#pc-m1:checked):has(#pc-m2:checked):has(#pc-m3:checked):has(#pc-m4:checked) ~ .pc-complete {
  display: flex;
}

.page-contact .pc-brief__aside {
  margin: var(--space-4) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 236, 239, 0.75);
}

.page-contact .pc-brief__aside a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .pc-brief__aside a:hover,
.page-contact .pc-brief__aside a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 咨询分类与去向 ---------- */
.page-contact .pc-routes__head {
  max-width: 64ch;
  margin-bottom: var(--space-4);
}

.page-contact .pc-routes__head .prose {
  color: var(--fog);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .pc-route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--pc-hair-soft);
}

.page-contact .pc-route {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-1) var(--space-2);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--pc-hair-soft);
  transition: background-color var(--t) var(--ease);
}

.page-contact .pc-route:hover {
  background-color: rgba(212, 166, 83, 0.04);
}

.page-contact .pc-route__no {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 4px;
}

.page-contact .pc-route__main h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-contact .pc-route__main p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
  max-width: 62ch;
}

.page-contact .pc-route__link {
  grid-column: 2;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.5);
  padding-bottom: 2px;
}

.page-contact .pc-route__link:hover,
.page-contact .pc-route__link:focus-visible {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
}

/* ---------- 渠道核验 ---------- */
.page-contact .pc-verify__lead {
  max-width: 60ch;
  color: rgba(233, 236, 239, 0.8);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 var(--space-4);
}

.page-contact .pc-tabs .segmented__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: var(--space-3);
}

.page-contact .pc-tabs .segmented__tab {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-contact .pc-tabs .segmented__panel[hidden] {
  display: none;
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-2);
  align-items: start;
  padding-top: var(--space-2);
}

.page-contact .pc-step__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold-hi);
  font-size: 13px;
  letter-spacing: 0.04em;
  background-color: rgba(212, 166, 83, 0.08);
}

.page-contact .pc-step h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  margin: 0 0 var(--space-1);
  color: var(--paper);
}

.page-contact .pc-step p {
  margin: 0 0 var(--space-2);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 236, 239, 0.82);
  max-width: 62ch;
}

.page-contact .pc-step__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-hair);
  padding-bottom: 2px;
}

.page-contact .pc-step__link:hover,
.page-contact .pc-step__link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-hero {
    padding-top: var(--space-3);
    padding-bottom: var(--space-6);
  }

  .page-contact .pc-letterhead__row {
    grid-template-columns: minmax(150px, 200px) 1fr;
    column-gap: var(--space-3);
    align-items: baseline;
  }

  .page-contact .pc-letterhead__row dt {
    grid-row: span 2;
  }

  .page-contact .pc-letterhead__row dd {
    grid-column: 2;
  }

  .page-contact .pc-route {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    gap: var(--space-3);
    align-items: start;
  }

  .page-contact .pc-route__link {
    grid-column: 3;
    justify-self: end;
    padding-top: 4px;
  }
}

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

  .page-contact .pc-channels__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-contact .pc-channels__fig {
    border-left: 1px solid var(--gold);
    padding-left: var(--space-5);
  }

  .page-contact .pc-channels__fig img {
    aspect-ratio: 4 / 3;
  }

  .page-contact .pc-step {
    grid-template-columns: 56px 1fr;
    gap: var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-check,
  .page-contact .pc-check__box,
  .page-contact .pc-check__box::after,
  .page-contact .pc-route,
  .page-contact .pc-hero__links a {
    transition: none;
  }
}
<<<END>>>