.page-contact {
  --pc-radius: 2px;
  --pc-measure: 38em;
  --pc-deep: #1C2224;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-contact .pc-hero {
  padding: clamp(20px, 3.5vw, 40px) 0 clamp(36px, 5vw, 68px);
  border-bottom: var(--hair);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .pc-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 76px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--ink);
}

.page-contact .pc-hero__lede {
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--rock-700);
  margin: 0;
  max-width: var(--pc-measure);
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: clamp(20px, 3vw, 28px) 0 0;
  border-top: var(--hair-strong);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
}

.page-contact .pc-fact {
  min-width: 0;
}

.page-contact .pc-fact__num {
  display: block;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.1;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-contact .pc-fact__unit {
  font-size: 13px;
  margin-left: 2px;
  color: var(--rock-700);
}

.page-contact .pc-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock-700);
}

.page-contact .pc-layout {
  display: grid;
  gap: clamp(34px, 4.5vw, 58px);
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(52px, 7vw, 104px);
  align-items: start;
}

.page-contact .pc-main {
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-contact .pc-chapter {
  padding-top: clamp(40px, 6vw, 76px);
}

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

.page-contact .pc-chapter__head {
  max-width: 44em;
}

.page-contact .pc-chapter__head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
  margin: 10px 0 14px;
  color: var(--ink);
}

.page-contact .pc-chapter__lede {
  font-size: 15px;
  line-height: 1.78;
  color: var(--rock-700);
  margin: 0;
  max-width: var(--pc-measure);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-media {
  margin: clamp(22px, 3.5vw, 34px) 0 0;
}

.page-contact .pc-dirs {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .pc-dir {
  position: relative;
  background: var(--paper-white);
  border: var(--hair);
  padding: 22px 20px 24px;
  border-radius: var(--pc-radius);
  box-shadow: var(--plate-shadow);
  min-width: 0;
}

.page-contact .pc-dir::after {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 220ms ease;
}

.page-contact .pc-dir:hover::after,
.page-contact .pc-dir:focus-within::after {
  transform: scaleY(1);
}

.page-contact .pc-dir__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--lake);
}

.page-contact .pc-dir__title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-contact .pc-dir__desc {
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--rock-700);
  margin: 0 0 14px;
}

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

.page-contact .pc-dir__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--rock-700);
}

.page-contact .pc-dir__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 1px;
  background: var(--lake);
}

.page-contact .pc-dir__fit {
  margin: 16px 0 0;
  padding-top: 13px;
  border-top: var(--hair);
  font-size: 13px;
  line-height: 1.65;
  color: var(--rock-700);
}

.page-contact .pc-dir__fit .tag {
  margin-right: 8px;
}

/* ---------- 容量与档期信息牌 ---------- */
.page-contact .pc-band {
  margin-top: clamp(36px, 5.5vw, 68px);
  padding: clamp(22px, 3.5vw, 36px) clamp(18px, 3vw, 32px);
  display: grid;
  gap: 22px;
  background: linear-gradient(150deg, rgba(111, 154, 155, 0.16), rgba(169, 195, 192, 0.18) 58%, rgba(243, 235, 221, 0) 100%);
  border-top: var(--hair-gold);
  border-bottom: var(--hair-gold);
}

.page-contact .pc-band__num {
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.1;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.02em;
}

.page-contact .pc-band__unit {
  font-size: 13px;
  margin-left: 3px;
  color: var(--lake);
}

.page-contact .pc-band__label {
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock-700);
}

.page-contact .pc-scale {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 3px;
  align-items: end;
  margin-top: 12px;
}

.page-contact .pc-scale span {
  display: block;
  height: 9px;
  background: rgba(111, 154, 155, 0.42);
}

.page-contact .pc-scale span:nth-child(2n) {
  height: 14px;
  background: rgba(111, 154, 155, 0.28);
}

.page-contact .pc-scale span.is-end {
  background: var(--gold);
  height: 18px;
}

.page-contact .pc-scale__labels {
  display: flex;
  justify-content: space-between;
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--rock-700);
}

/* ---------- 合作流程 ---------- */
.page-contact .pc-steps {
  margin-top: clamp(22px, 3vw, 32px);
  border-top: var(--hair-strong);
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 14px;
  padding: 20px 0;
  border-bottom: var(--hair);
  outline: none;
}

.page-contact .pc-step:focus-visible {
  box-shadow: 0 0 0 2px var(--gold-soft);
}

.page-contact .pc-step__num {
  font-size: 14px;
  color: var(--lake);
  padding-top: 3px;
}

.page-contact .pc-step__body {
  min-width: 0;
}

.page-contact .pc-step__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-contact .pc-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock-700);
}

.page-contact .pc-step__deliver {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--cinnabar);
  transition: opacity 200ms ease, transform 200ms ease;
}

/* ---------- 适合的合作方 ---------- */
.page-contact .pc-partners {
  display: grid;
  gap: 20px 24px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .pc-partner {
  border-top: 2px solid var(--lake);
  padding-top: 14px;
  min-width: 0;
}

.page-contact .pc-partner__title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-contact .pc-partner__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--rock-700);
}

.page-contact .pc-partners__note {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: var(--hair);
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock-700);
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-contact {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 46px) clamp(18px, 3.4vw, 40px);
  background: linear-gradient(165deg, rgba(251, 247, 239, 0.9), rgba(169, 195, 192, 0.22) 62%, rgba(243, 235, 221, 0.95));
  border: var(--hair-gold);
  border-radius: var(--pc-radius);
}

.page-contact .pc-contact__lines {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%;
  height: 62%;
  color: var(--lake);
  opacity: 0.22;
  pointer-events: none;
}

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

.page-contact .pc-channels {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px 26px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .pc-channel {
  min-width: 0;
  padding-bottom: 14px;
  border-bottom: var(--hair);
}

.page-contact .pc-channel__label {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--lake);
  font-family: var(--font-mono);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .pc-channel__note {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--rock-700);
}

.page-contact .pc-subjects {
  position: relative;
  z-index: 1;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: var(--hair-strong);
}

.page-contact .pc-subjects__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-contact .pc-subjects__lede {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--rock-700);
}

.page-contact .pc-acc {
  border-bottom: var(--hair);
}

.page-contact .pc-acc .accordion__panel p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--rock-700);
}

.page-contact .pc-acc .accordion__panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 到访与接待 ---------- */
.page-contact .pc-visit {
  display: grid;
  gap: clamp(22px, 3.5vw, 36px);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .pc-visit__text p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--rock-700);
  max-width: var(--pc-measure);
}

.page-contact .pc-visit__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: var(--hair);
  display: grid;
  gap: 10px;
}

.page-contact .pc-visit__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--rock-700);
}

.page-contact .pc-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

.page-contact .pc-visit__link {
  margin: 18px 0 0;
}

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

/* ---------- 问答 ---------- */
.page-contact .pc-faq {
  margin-top: clamp(20px, 3vw, 28px);
  border-top: var(--hair-strong);
}

.page-contact .pc-faq .pc-acc .accordion__panel p {
  max-width: var(--pc-measure);
}

/* ---------- 侧栏 ---------- */
.page-contact .pc-aside {
  display: grid;
  gap: 22px;
  align-content: start;
  min-width: 0;
}

.page-contact .pc-card {
  position: relative;
  background: var(--rock-900);
  color: var(--paper);
  padding: 26px 22px 24px;
  border: 1px solid rgba(201, 162, 75, 0.32);
  border-radius: var(--pc-radius);
  box-shadow: 0 24px 60px -46px rgba(18, 22, 21, 0.95);
}

.page-contact .pc-card::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(201, 162, 75, 0.16);
  pointer-events: none;
}

.page-contact .pc-card__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--gold-soft);
}

.page-contact .pc-card__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  margin: 10px 0 16px;
  color: var(--paper-white);
  letter-spacing: -0.01em;
}

.page-contact .pc-card__row {
  padding: 12px 0;
  border-top: 1px solid rgba(243, 235, 221, 0.14);
}

.page-contact .pc-card__label {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
}

.page-contact .pc-card__value {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper-white);
  word-break: break-word;
}

.page-contact .pc-card__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(243, 235, 221, 0.78);
}

.page-contact .pc-card__cta {
  display: inline-block;
  margin-top: 18px;
  text-decoration: none;
}

.page-contact .pc-card__cta:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
}

.page-contact .pc-index {
  border-top: var(--hair-strong);
  padding-top: 14px;
}

.page-contact .pc-index__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--rock-700);
}

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

.page-contact .pc-index__link {
  display: block;
  padding: 8px 0 8px 12px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--rock-700);
  text-decoration: none;
  border-bottom: var(--hair);
  border-left: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-contact .pc-index__link:hover,
.page-contact .pc-index__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--gold);
  background: rgba(201, 162, 75, 0.08);
}

.page-contact .pc-index__link.is-active {
  color: var(--ink);
  border-left-color: var(--cinnabar);
  background: rgba(201, 162, 75, 0.1);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .pc-dirs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .pc-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 24px;
  }

  .page-contact .pc-step {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 0 20px;
  }

  .page-contact .pc-visit {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .pc-step__deliver {
    opacity: 0;
    transform: translateY(-4px);
  }

  .page-contact .pc-step:hover .pc-step__deliver,
  .page-contact .pc-step:focus-within .pc-step__deliver,
  .page-contact .pc-step:focus .pc-step__deliver {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-layout {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 352px);
    gap: clamp(40px, 4vw, 64px);
  }

  .page-contact .pc-aside {
    position: sticky;
    top: 96px;
  }

  .page-contact .pc-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-dir::after,
  .page-contact .pc-step__deliver,
  .page-contact .pc-index__link {
    transition: none;
  }

  .page-contact .pc-step__deliver {
    opacity: 1;
    transform: none;
  }
}
<<<END>>>