.page-contact {
  --pc-gap: clamp(20px, 3.4vw, 36px);
  --pc-pad: clamp(20px, 3vw, 30px);
  color: var(--paper);
  padding-bottom: clamp(56px, 9vw, 110px);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-top: clamp(26px, 4.6vw, 52px);
  padding-bottom: clamp(22px, 3.6vw, 40px);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-faint) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-faint) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: center top;
  opacity: .55;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .3) 68%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .3) 68%, transparent 100%);
}

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

.page-contact .breadcrumbs {
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-size: 12px;
}

.page-contact .pc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
}

.page-contact .pc-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(31px, 6.2vw, 54px);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 15em;
}

.page-contact .pc-lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 36em;
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.78;
  color: var(--paper-soft);
}

.page-contact .pc-quick {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .pc-quick a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line-faint);
  background: var(--glass);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .pc-quick a .mono {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .05em;
}

.page-contact .pc-quick a:hover,
.page-contact .pc-quick a:focus-visible {
  border-color: var(--cyan-line);
  background: var(--cyan-soft);
  transform: translateX(3px);
}

/* ---------- 区块通用 ---------- */
.page-contact .pc-section {
  padding-top: clamp(40px, 6.5vw, 80px);
}

.page-contact .pc-figure {
  position: relative;
  margin: 0 0 var(--pc-gap);
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-contact .pc-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(27, 59, 99, .4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 59, 99, .4) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .35;
}

.page-contact .pc-figure-cap {
  position: absolute;
  left: 12px;
  bottom: 10px;
  z-index: 2;
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
  background: rgba(6, 11, 20, .74);
}

/* ---------- 主分栏 ---------- */
.page-contact .pc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .pc-rail {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .pc-channel {
  position: relative;
  padding: var(--pc-pad);
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  border-color: var(--cyan-line);
  border-left-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .pc-channel--mail {
  border-color: var(--cyan-line);
  border-left-color: var(--cyan);
  background: linear-gradient(155deg, rgba(23, 224, 200, .12), var(--ink-700) 62%);
}

.page-contact .pc-channel--phone {
  min-height: clamp(148px, 20vw, 176px);
  margin-left: clamp(0px, 3vw, 26px);
}

.page-contact .pc-channel--addr {
  min-height: clamp(166px, 22vw, 198px);
  margin-right: clamp(0px, 3vw, 26px);
}

.page-contact .pc-channel .mono-label {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .pc-channel-value {
  margin: 10px 0 0;
  font-size: clamp(16px, 2.4vw, 22px);
  line-height: 1.42;
  letter-spacing: -.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel--mail .pc-channel-value {
  color: var(--cyan);
}

.page-contact .pc-channel--phone .pc-channel-value {
  font-size: clamp(24px, 4.2vw, 34px);
  letter-spacing: .02em;
  line-height: 1.2;
}

.page-contact .pc-channel-addr {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(15px, 2vw, 18px);
}

.page-contact .pc-channel-note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-faint);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-contact .pc-channel:hover .pc-channel-note {
  color: var(--paper-soft);
}

/* ---------- 右栏面板 ---------- */
.page-contact .pc-box {
  padding: var(--pc-pad);
  margin-bottom: var(--pc-gap);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .pc-box:last-child {
  margin-bottom: 0;
}

.page-contact .pc-box--accent {
  border-left: 2px solid var(--orange);
  background: linear-gradient(140deg, rgba(255, 122, 47, .08), var(--ink-800) 55%);
}

.page-contact .pc-box .mono-label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .pc-box h3 {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .pc-box p:not(.mono-label):not(.pc-hint) {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-soft);
}

.page-contact .pc-facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-facts li {
  display: grid;
  gap: 3px;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-soft);
}

.page-contact .pc-facts li .mono {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .pc-box .pc-hint {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--orange);
  background: var(--orange-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .pc-textlink {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 1px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

/* ---------- 纠错两栏 ---------- */
.page-contact .pc-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .pc-duo-copy p {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-contact .pc-checklist {
  padding: var(--pc-pad);
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-contact .pc-checklist .mono-label {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .pc-checklist ul {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-checklist li label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: var(--ink-800);
  border: 1px solid var(--line-faint);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper-soft);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-checklist li label:hover {
  border-color: var(--cyan-line);
  background: var(--ink-700);
}

.page-contact .pc-checklist input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .pc-checklist input:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .pc-checklist input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .pc-checklist input:checked + span {
  color: var(--paper);
}

.page-contact .pc-check-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-faint);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 表单说明 ---------- */
.page-contact .pc-form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .pc-fields {
  display: grid;
}

.page-contact .pc-field {
  display: grid;
  gap: 5px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line-faint);
}

.page-contact .pc-field:first-child {
  padding-top: 0;
}

.page-contact .pc-field-label {
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--cyan);
}

.page-contact .pc-field-hint {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-soft);
}

.page-contact .pc-form-side {
  display: grid;
  gap: var(--pc-gap);
  align-content: start;
}

.page-contact .pc-figure--narrow {
  margin-bottom: 0;
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-steps li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-soft);
}

.page-contact .pc-steps li .mono {
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--orange);
  padding-top: 3px;
}

.page-contact .pc-side-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-faint);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .pc-side-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .pc-quick {
    border-left: 1px solid var(--line-soft);
    padding-left: clamp(14px, 2.4vw, 22px);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-duo {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .pc-form-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 960px) {
  .page-contact .pc-layout {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.28fr);
    gap: clamp(24px, 3.2vw, 44px);
  }

  .page-contact .pc-rail {
    position: sticky;
    top: calc(var(--header-h-condensed) + 24px);
    align-content: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-quick a,
  .page-contact .pc-channel,
  .page-contact .pc-channel-note,
  .page-contact .pc-textlink,
  .page-contact .pc-checklist li label,
  .page-contact .pc-checklist input {
    transition: none;
  }

  .page-contact .pc-quick a:hover,
  .page-contact .pc-quick a:focus-visible,
  .page-contact .pc-channel:hover,
  .page-contact .pc-channel:focus-within {
    transform: none;
  }
}
<<<END>>>