.page-contact {
  --pc-card-bg: rgba(46, 54, 60, .78);
  --pc-edge: rgba(242, 240, 234, .12);
  --pc-edge-cool: rgba(111, 183, 206, .34);
  background: var(--rock);
  color: var(--cream);
  overflow-x: clip;
}

.page-contact .pc-block {
  padding: clamp(40px, 7vw, 84px) 0;
}

.page-contact .pc-kicker {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lake-light);
  margin: 0 0 10px;
}

.page-contact .pc-h2 {
  font-size: clamp(26px, 5.2vw, 42px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.12;
  margin: 0 0 12px;
}

.page-contact .pc-sub {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(242, 240, 234, .68);
  max-width: 54ch;
  margin: 0 0 30px;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-intro {
  padding-top: clamp(28px, 6vw, 68px);
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-contact .pc-intro .breadcrumbs {
  margin-bottom: clamp(26px, 5vw, 52px);
}

.page-contact .pc-intro__grid {
  display: grid;
  gap: 34px;
}

.page-contact .pc-intro__text h1 {
  font-size: clamp(34px, 8.4vw, 62px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -.02em;
  margin: 0 0 20px;
  max-width: 15ch;
}

.page-contact .pc-intro__lead {
  font-size: 16px;
  line-height: 1.78;
  color: rgba(242, 240, 234, .74);
  max-width: 48ch;
  margin: 0;
}

.page-contact .pc-intro__figure {
  margin: 0;
  border: 1px solid var(--pc-edge);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.page-contact .pc-intro__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
}

/* ---------- 找到我们 ---------- */
.page-contact .pc-reach__grid {
  display: grid;
  gap: 14px;
}

.page-contact .pc-reach__card {
  border: 1px solid var(--pc-edge-cool);
  background: linear-gradient(180deg, rgba(46, 54, 60, .92), rgba(28, 34, 39, .92));
  border-radius: 2px;
  padding: 22px 20px 20px;
  box-shadow: var(--shadow-soft);
}

.page-contact .pc-reach__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gray);
  margin: 0;
}

.page-contact .pc-reach__value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(21px, 5.6vw, 32px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.2;
  color: var(--neon);
  margin: 10px 0 10px;
  word-break: break-all;
}

.page-contact .pc-reach__value--sm {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  color: var(--cream);
  word-break: normal;
}

.page-contact .pc-reach__hint {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 240, 234, .58);
  margin: 0;
}

.page-contact .pc-reach__card--quiet {
  border-color: var(--pc-edge);
  border-style: dashed;
  background: rgba(28, 34, 39, .6);
  box-shadow: none;
}

/* ---------- 渠道分工 ---------- */
.page-contact .pc-channel__grid {
  display: grid;
  gap: 32px;
}

.page-contact .pc-rail__text {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 240, 234, .68);
  margin: 0 0 22px;
}

.page-contact .pc-meta {
  margin: 0;
  border-top: 1px solid var(--pc-edge);
}

.page-contact .pc-meta__row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .pc-meta__row dt {
  font-size: 13px;
  color: var(--gray);
  letter-spacing: .04em;
}

.page-contact .pc-meta__row dd {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--neon);
  margin: 0;
  text-align: right;
}

.page-contact .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .tab {
  font-family: inherit;
  font-size: 14px;
  line-height: 1;
  padding: 10px 15px;
  border: 1px solid var(--pc-edge);
  border-radius: 2px;
  background: transparent;
  color: rgba(242, 240, 234, .7);
  cursor: pointer;
  transition: color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .tab:hover {
  color: var(--cream);
  border-color: var(--pc-edge-cool);
}

.page-contact .tab[aria-selected="true"] {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--graphite);
  font-weight: 700;
}

.page-contact .tab:focus-visible,
.page-contact .acc-trigger:focus-visible {
  outline: 2px solid var(--lake-light);
  outline-offset: 2px;
}

.page-contact .pc-panel {
  border: 1px solid var(--pc-edge);
  border-radius: 2px;
  background: rgba(28, 34, 39, .55);
  padding: 22px 20px;
}

.page-contact .pc-panel__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--cream);
  margin: 0 0 20px;
}

.page-contact .pc-panel__cols {
  display: grid;
  gap: 18px;
}

.page-contact .pc-panel__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lake-light);
  margin: 0 0 8px;
}

.page-contact .pc-panel__body {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(242, 240, 234, .82);
  margin: 0;
  word-break: break-all;
}

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

.page-contact .pc-panel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(242, 240, 234, .78);
  margin-bottom: 6px;
}

.page-contact .pc-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 1px;
  background: var(--neon);
}

.page-contact .pc-panel__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--pc-edge);
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 来信说明 ---------- */
.page-contact .pc-mail {
  background: linear-gradient(165deg, rgba(14, 74, 99, .55) 0%, rgba(28, 34, 39, .95) 62%);
  border-top: 1px solid var(--pc-edge);
  border-bottom: 1px solid var(--pc-edge);
  padding: clamp(42px, 7vw, 84px) 0;
}

.page-contact .pc-mail__grid {
  display: grid;
  gap: 32px;
}

.page-contact .pc-template {
  border-left: 3px solid var(--amber);
  background: rgba(18, 22, 26, .72);
  border-radius: 0 2px 2px 0;
  padding: 16px 18px;
  margin-bottom: 24px;
}

.page-contact .pc-template__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
  margin: 0 0 8px;
}

.page-contact .pc-template__code {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--cream);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pcstep;
}

.page-contact .pc-checklist li {
  position: relative;
  counter-increment: pcstep;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 240, 234, .78);
  margin-bottom: 12px;
}

.page-contact .pc-checklist li::before {
  content: counter(pcstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .15em;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--neon);
}

.page-contact .pc-mail__figure {
  margin: 0;
  border: 1px solid var(--pc-edge-cool);
  border-radius: 2px;
  overflow: hidden;
  background: rgba(18, 22, 26, .5);
}

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

/* ---------- 合作与媒体 ---------- */
.page-contact .pc-partner {
  background: linear-gradient(140deg, rgba(14, 74, 99, .9) 0%, rgba(62, 92, 75, .6) 100%);
  border-top: 1px solid var(--pc-edge);
  border-bottom: 1px solid var(--pc-edge);
  padding: clamp(40px, 7vw, 78px) 0;
}

.page-contact .pc-partner__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-contact .pc-partner__card {
  border: 1px solid rgba(242, 240, 234, .2);
  background: rgba(18, 22, 26, .34);
  border-radius: 2px;
  padding: 18px 18px 20px;
}

.page-contact .pc-partner__num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
  margin-bottom: 10px;
}

.page-contact .pc-partner__title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .01em;
  margin: 0 0 8px;
  color: var(--cream);
}

.page-contact .pc-partner__text {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(242, 240, 234, .7);
  margin: 0;
}

.page-contact .pc-partner__foot {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(242, 240, 234, .62);
}

.page-contact .pc-partner__foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 180, .5);
}

/* ---------- 常见来信类型 ---------- */
.page-contact .pc-faq .acc-item {
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .pc-faq .acc-item:first-child {
  border-top: 1px solid var(--pc-edge);
}

.page-contact .pc-faq__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-contact .acc-trigger {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  background: none;
  border: 0;
  color: var(--cream);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
}

.page-contact .acc-trigger::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 19px;
  line-height: 1;
  color: var(--neon);
}

.page-contact .acc-trigger[aria-expanded="true"]::after {
  content: "−";
}

.page-contact .acc-panel {
  padding: 0 0 20px;
  max-width: 68ch;
}

.page-contact .acc-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(242, 240, 234, .7);
}

.page-contact .acc-panel a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 180, .5);
}

/* ---------- 收尾署名带 ---------- */
.page-contact .pc-endcap {
  margin-top: clamp(36px, 6vw, 72px);
  background: var(--rock-mid);
  border-top: 1px solid var(--pc-edge);
  padding: 26px 0;
}

.page-contact .pc-endcap__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
}

.page-contact .pc-endcap__brand {
  margin: 0;
  font-size: 14px;
  letter-spacing: .02em;
  color: rgba(242, 240, 234, .86);
}

.page-contact .pc-endcap__meta {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gray);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-reach__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-reach__card--quiet {
    grid-column: 1 / -1;
  }

  .page-contact .pc-panel {
    padding: 26px 26px 24px;
  }

  .page-contact .pc-panel__cols {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    gap: 28px;
  }

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

@media (min-width: 960px) {
  .page-contact .pc-intro__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 64px;
    align-items: end;
  }

  .page-contact .pc-channel__grid {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .pc-channel__rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .pc-mail__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 56px;
    align-items: center;
  }

  .page-contact .pc-mail__figure img {
    max-height: 560px;
    object-fit: cover;
  }
}

@media (min-width: 1120px) {
  .page-contact .pc-partner__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .pc-partner__card {
    padding: 22px 20px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tab {
    transition: none;
  }
}
<<<END>>>