.page-contact {
  --pc-ink: #0A1E19;
  --pc-ink-dim: rgba(10, 30, 25, 0.72);
  --pc-line-dark: rgba(10, 30, 25, 0.14);
  --pc-shadow: 0 18px 38px rgba(6, 20, 16, 0.22);
  background: var(--c-base);
  color: var(--c-text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-block: clamp(20px, 3.4vw, 36px) clamp(44px, 6vw, 86px);
  background:
    radial-gradient(115% 78% at 108% 4%, rgba(44, 122, 85, 0.45), transparent 60%),
    radial-gradient(90% 60% at -10% 100%, rgba(62, 224, 192, 0.12), transparent 62%),
    var(--c-base);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -22%;
  width: min(760px, 78%);
  height: 66%;
  background: linear-gradient(148deg, rgba(44, 122, 85, 0.75), rgba(20, 72, 58, 0.08));
  clip-path: polygon(0 40%, 100% 0, 100% 100%, 0 100%);
  opacity: 0.34;
  pointer-events: none;
}

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

.page-contact .pc-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 22px;
}

.page-contact .pc-hero__aside {
  position: relative;
  padding: clamp(22px, 4vw, 38px);
  background: linear-gradient(168deg, var(--c-home) 12%, rgba(10, 30, 25, 0.62) 100%);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-l);
}

.page-contact .pc-hero__aside::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(22px, 4vw, 38px);
  width: 74px;
  height: 3px;
  background: var(--c-orange);
}

.page-contact .pc-hero__title {
  display: flex;
  flex-direction: column;
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(3.1rem, 15vw, 6.6rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.9;
}

.page-contact .pc-hero__title span:last-child {
  color: var(--c-neon);
}

.page-contact .pc-hero__lead {
  max-width: 36ch;
  margin: 0 0 26px;
  font-size: clamp(1rem, 1.1vw, 1.0625rem);
  line-height: 1.8;
  color: var(--c-text-dim);
}

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

.page-contact .pc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-m);
}

.page-contact .pc-figure figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--c-text-dim);
}

/* ---------- 渠道说明牌 ---------- */
.page-contact .pc-hero__cards {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .pc-hero__cards-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-text-dim);
}

.page-contact .pc-channel {
  position: relative;
  padding: 20px 22px 22px;
  background: var(--c-paper);
  color: var(--pc-ink);
  border: 1px solid rgba(10, 30, 25, 0.16);
  border-left: 4px solid var(--c-orange);
  border-radius: var(--radius-m);
  transition: transform var(--dur) ease, box-shadow var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--pc-shadow);
  border-color: rgba(10, 30, 25, 0.32);
  border-left-color: var(--c-orange-deep);
}

.page-contact .pc-tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--c-orange-deep);
  background: transparent;
  border: 1px solid rgba(184, 67, 28, 0.55);
  border-radius: var(--radius-s);
}

.page-contact .pc-channel__name {
  margin: 12px 0 6px;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .pc-channel__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 1.5vw, 1.125rem);
  font-weight: 600;
  letter-spacing: 0.035em;
  line-height: 1.5;
  color: var(--pc-ink);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__use {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--pc-ink-dim);
}

.page-contact .pc-channel__meta {
  margin: 0;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(10, 30, 25, 0.55);
  border-top: 1px dashed rgba(10, 30, 25, 0.18);
}

/* ---------- 通用分区 ---------- */
.page-contact .pc-section {
  position: relative;
  padding-block: clamp(46px, 6vw, 84px);
}

.page-contact .pc-h2 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.22;
}

.page-contact .pc-lead {
  max-width: 42ch;
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.page-contact .pc-inline-link {
  margin: 18px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-contact .pc-inline-link a {
  color: var(--c-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 224, 192, 0.45);
  padding-bottom: 2px;
  transition: border-color var(--dur) ease, color var(--dur) ease;
}

.page-contact .pc-inline-link a:hover,
.page-contact .pc-inline-link a:focus-visible {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

.page-contact .pc-inline-link--coop {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}

/* ---------- 勘误 ---------- */
.page-contact .pc-section--mist {
  background: var(--c-mist);
  color: var(--pc-ink);
}

.page-contact .pc-section--mist .eyebrow--dark {
  color: rgba(10, 30, 25, 0.58);
}

.page-contact .pc-lead--dark {
  color: var(--pc-ink-dim);
}

.page-contact .pc-section--mist .pc-inline-link a {
  color: var(--c-orange-deep);
  border-bottom-color: rgba(184, 67, 28, 0.45);
}

.page-contact .pc-section--mist .pc-inline-link a:hover,
.page-contact .pc-section--mist .pc-inline-link a:focus-visible {
  color: var(--pc-ink);
  border-bottom-color: var(--pc-ink);
}

.page-contact .pc-correct__grid {
  display: grid;
  gap: 28px;
}

.page-contact .pc-steps {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--pc-line-dark);
  border: 1px solid var(--pc-line-dark);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 18px 20px;
  background: var(--c-mist);
  transition: background var(--dur) ease;
}

.page-contact .pc-step:hover {
  background: var(--c-paper);
}

.page-contact .pc-step__no {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-orange-deep);
  padding-top: 3px;
}

.page-contact .pc-step__title {
  margin: 0 0 5px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .pc-step__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--pc-ink-dim);
}

/* ---------- 简史追加 ---------- */
.page-contact .pc-section--hist {
  background:
    linear-gradient(180deg, rgba(20, 72, 58, 0.55), rgba(10, 30, 25, 0) 42%),
    var(--c-base);
}

.page-contact .pc-hist__grid {
  display: grid;
  gap: 30px;
}

.page-contact .pc-types {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-type {
  position: relative;
  padding: 12px 16px 12px 34px;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--c-text);
  background: rgba(44, 122, 85, 0.16);
  border: 1px dashed rgba(62, 224, 192, 0.34);
  border-radius: var(--radius-s);
}

.page-contact .pc-type::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 14px;
  width: 9px;
  height: 2px;
  background: var(--c-neon);
  transform: translateY(-50%);
}

.page-contact .pc-note {
  margin: 22px 0 0;
  padding-left: 16px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-text-dim);
  border-left: 2px solid var(--c-turf);
}

.page-contact .pc-figure--hist img {
  aspect-ratio: 3 / 2;
}

/* ---------- 合作 ---------- */
.page-contact .pc-section--coop {
  background: var(--c-home);
}

.page-contact .pc-coop__grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .pc-coop {
  position: relative;
  padding: 24px 22px 24px;
  background: rgba(10, 30, 25, 0.5);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-m);
  transition: transform var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .pc-coop:hover {
  transform: translateY(-2px);
  border-color: rgba(62, 224, 192, 0.5);
}

.page-contact .pc-coop__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(62, 224, 192, 0.55);
  line-height: 1;
}

.page-contact .pc-coop__title {
  margin: 14px 0 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

.page-contact .pc-coop__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--c-text-dim);
}

/* ---------- 时效与备案 ---------- */
.page-contact .pc-section--time {
  padding-block: 0 clamp(48px, 6vw, 80px);
  background: var(--c-base);
}

.page-contact .pc-turfbar {
  height: 6px;
  margin-bottom: clamp(34px, 4.6vw, 62px);
  background: repeating-linear-gradient(
    90deg,
    var(--c-turf) 0 16px,
    rgba(20, 72, 58, 0.35) 16px 32px
  );
}

.page-contact .pc-time__grid {
  display: grid;
  gap: 30px;
}

.page-contact .pc-lead--soft {
  color: rgba(234, 242, 238, 0.45);
  font-size: 0.9375rem;
}

.page-contact .pc-facts {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--c-line-soft);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .pc-fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 15px 18px;
  background: var(--c-base);
}

.page-contact .pc-fact dt {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

.page-contact .pc-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-neon);
  text-align: right;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-channel__value {
    letter-spacing: 0.05em;
  }

  .page-contact .pc-correct__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-contact .pc-coop:last-child {
    grid-column: 1 / -1;
  }

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

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: 38px;
    align-items: start;
  }

  .page-contact .pc-hero__cards {
    gap: 20px;
  }

  .page-contact .pc-channel--a {
    margin-right: 58px;
  }

  .page-contact .pc-channel--b {
    margin-right: 29px;
  }

  .page-contact .pc-channel--c {
    margin-right: 0;
  }

  .page-contact .pc-hist__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 46px;
    align-items: center;
  }

  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-coop:last-child {
    grid-column: auto;
  }

  .page-contact .pc-coop:nth-child(2) {
    transform: translateY(18px);
  }

  .page-contact .pc-coop:nth-child(2):hover {
    transform: translateY(16px);
  }

  .page-contact .pc-time__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 48px;
    align-items: start;
  }

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

@media (min-width: 1180px) {
  .page-contact .pc-hero__title {
    font-size: clamp(5rem, 8.6vw, 7rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-coop,
  .page-contact .pc-step,
  .page-contact .pc-inline-link a {
    transition: none;
  }

  .page-contact .pc-channel:hover,
  .page-contact .pc-channel:focus-within,
  .page-contact .pc-coop:hover,
  .page-contact .pc-coop:nth-child(2),
  .page-contact .pc-coop:nth-child(2):hover {
    transform: none;
  }
}