.page-contact {
  --pc-signal-soft: rgba(226, 69, 60, .42);
  --pc-line-soft: rgba(255, 255, 255, .16);
  background: var(--frost);
  color: var(--graphite);
}

.page-contact .pc-hero {
  padding: clamp(28px, 6vw, 56px) 0 clamp(40px, 7vw, 72px);
  background:
    linear-gradient(180deg, var(--frost) 0%, var(--frost) 58%, var(--mist) 100%);
}

.page-contact .pc-hero__shell {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-contact .pc-hero__main { order: 1; }
.page-contact .pc-hero__aside { order: 2; }

.page-contact .pc-hero__main h1 {
  margin: 12px 0 18px;
  max-width: 20ch;
}

.page-contact .pc-hero__note {
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--brand);
}

.page-contact .pc-hero__note .data {
  color: var(--line-cyan);
  font-weight: 700;
}

/* 首屏联系卡 */
.page-contact .pc-card {
  margin: 0;
  background: var(--ink);
  border: 1px solid var(--pc-signal-soft);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 28px 64px -36px rgba(11, 33, 48, .7);
}

.page-contact .pc-card__media {
  display: block;
  position: relative;
}

.page-contact .pc-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(31, 122, 148, .34) 0%, rgba(11, 33, 48, .72) 100%);
  pointer-events: none;
}

.page-contact .pc-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05);
}

.page-contact .pc-card__body {
  padding: clamp(20px, 4vw, 30px);
  background: var(--ink);
  border-top: 2px solid var(--signal);
}

.page-contact .pc-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .pc-card__mail {
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.2vw, 21px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: #FFFFFF;
  word-break: break-all;
}

.page-contact .pc-card__hint {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 248, .74);
}

/* 三条路径 */
.page-contact .pc-paths {
  background: var(--frost);
}

.page-contact .pc-paths__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-contact .pc-path {
  background: var(--glass-white);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  transition: border-color .24s var(--ease), box-shadow .24s var(--ease), transform .24s var(--ease);
}

.page-contact .pc-path--lake { border-left-color: var(--lake); }
.page-contact .pc-path--signal { border-left-color: var(--signal); }

.page-contact .pc-path[open] {
  box-shadow: 0 22px 48px -32px rgba(11, 33, 48, .55);
}

.page-contact .pc-path__sum {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  list-style: none;
}

.page-contact .pc-path__sum::-webkit-details-marker { display: none; }

.page-contact .pc-path__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--line-cyan);
}

.page-contact .pc-path__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -.01em;
}

.page-contact .pc-path__more {
  position: relative;
  width: 24px;
  height: 24px;
  border: 1px solid var(--mist);
  border-radius: 50%;
  flex: none;
}

.page-contact .pc-path__more::before,
.page-contact .pc-path__more::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--brand);
  transform: translate(-50%, -50%);
}

.page-contact .pc-path__more::before { width: 10px; height: 1.5px; }
.page-contact .pc-path__more::after { width: 1.5px; height: 10px; transition: opacity .2s var(--ease); }
.page-contact .pc-path[open] .pc-path__more::after { opacity: 0; }

.page-contact .pc-path__body {
  padding: 16px 20px 22px;
  border-top: 1px solid var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .pc-path__body p {
  margin: 0;
}

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

.page-contact .pc-path__body a:hover { color: var(--brand); }

.page-contact .pc-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .pc-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--line-cyan);
  border-radius: 1px;
  transform: rotate(45deg);
}

.page-contact .pc-path__channel {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.7;
  color: var(--brand);
  opacity: .82;
}

/* 直接联系 */
.page-contact .pc-direct {
  background: var(--brand);
  color: var(--frost);
}

.page-contact .pc-direct__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .pc-direct .eyebrow { color: var(--gold); }

.page-contact .pc-direct h2 {
  color: #FFFFFF;
  margin: 10px 0 16px;
}

.page-contact .pc-direct__intro p {
  margin: 0;
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 247, 248, .8);
}

.page-contact .pc-dl {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--pc-line-soft);
}

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

.page-contact .pc-dl dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .pc-dl dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: #FFFFFF;
}

.page-contact .pc-dl dd.data {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0;
  word-break: break-all;
}

.page-contact .pc-dl__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 247, 248, .7);
}

/* 内容协作 */
.page-contact .pc-coop {
  background: var(--frost);
}

.page-contact .pc-coop__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-contact .pc-coop__media {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--mist);
}

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

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

.page-contact .pc-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  padding: 18px 0;
  border-top: 1px solid var(--mist);
}

.page-contact .pc-step:last-child {
  border-bottom: 1px solid var(--mist);
}

.page-contact .pc-step__no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--line-cyan);
  opacity: .5;
}

.page-contact .pc-step__body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--brand);
}

.page-contact .pc-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  max-width: 58ch;
}

/* 校正材料 */
.page-contact .pc-correct {
  background: var(--mist);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .pc-checklist li {
  background: var(--glass-white);
  border-top: 2px solid var(--line-cyan);
  border-radius: var(--radius);
  padding: 18px;
}

.page-contact .pc-checklist__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--brand);
  margin-bottom: 8px;
}

.page-contact .pc-checklist p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .pc-correct__foot {
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--signal);
  font-size: 14.5px;
  line-height: 1.85;
  max-width: 68ch;
  color: var(--graphite);
}

/* 常见问题 */
.page-contact .pc-faqblock {
  background: var(--frost);
}

.page-contact .pc-faq {
  display: grid;
  margin-top: clamp(24px, 4vw, 36px);
  border-top: 1px solid var(--mist);
}

.page-contact .pc-q {
  border-bottom: 1px solid var(--mist);
}

.page-contact .pc-q summary {
  position: relative;
  padding: 18px 36px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--brand);
}

.page-contact .pc-q summary::-webkit-details-marker { display: none; }

.page-contact .pc-q summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--line-cyan);
}

.page-contact .pc-q[open] summary::after { content: "−"; }

.page-contact .pc-q p {
  margin: 0 0 20px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
}

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

.page-contact .pc-q p a:hover { color: var(--brand); }

/* 收尾 */
.page-contact .pc-tail {
  padding: clamp(40px, 6vw, 64px) 0;
  background: var(--ink);
  color: var(--frost);
}

.page-contact .pc-tail__inner {
  display: grid;
  gap: clamp(20px, 4vw, 32px);
  align-items: center;
}

.page-contact .pc-tail h2 {
  margin: 0 0 10px;
  color: #FFFFFF;
}

.page-contact .pc-tail p {
  margin: 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 248, .76);
}

.page-contact .pc-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 600px) {
  .page-contact .pc-dl__row {
    grid-template-columns: 132px 1fr;
    gap: 20px;
    align-items: baseline;
  }

  .page-contact .pc-checklist {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (min-width: 860px) {
  .page-contact .pc-hero__shell {
    grid-template-columns: 38fr 62fr;
    gap: clamp(32px, 4vw, 64px);
  }

  .page-contact .pc-hero__aside { order: 1; }
  .page-contact .pc-hero__main { order: 2; }

  .page-contact .pc-paths__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .pc-direct__grid {
    grid-template-columns: 38fr 62fr;
  }

  .page-contact .pc-tail__inner {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 940px) {
  .page-contact .pc-coop__grid {
    grid-template-columns: 40fr 60fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-path,
  .page-contact .pc-path__more::after {
    transition-duration: .12s;
  }
}
<<<PAGE_CSS_END>>>