.page-contact {
  background: var(--abyss);
  color: var(--score-white);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--header-h) + 52px) 0 60px;
}

.page-contact .pc-hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-contact .pc-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 64% 42%;
  opacity: 0.26;
  filter: saturate(0.72) contrast(1.06);
}

.page-contact .pc-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 9, 17, 0.42) 0%, rgba(4, 9, 17, 0.88) 56%, var(--abyss) 100%),
    radial-gradient(120% 84% at 10% 0%, rgba(53, 240, 208, 0.15) 0%, rgba(4, 9, 17, 0) 62%);
}

.page-contact .pc-hero-inner {
  position: relative;
}

.page-contact .pc-hero .eyebrow {
  margin-top: 30px;
}

.page-contact .pc-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(33px, 5.8vw, 60px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  max-width: 19ch;
  margin: 14px 0 0;
}

.page-contact .pc-hero .lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 18px;
  line-height: 1.78;
  color: var(--steel-mist);
}

.page-contact .pc-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.page-contact .pc-hero-metrics {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 46px;
  margin: 44px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-dim);
}

.page-contact .pc-hero-metrics li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--steel-mist);
  max-width: 34ch;
}

.page-contact .pc-hero-metrics .num {
  font-family: var(--font-mono);
  font-size: 24px;
  letter-spacing: 0.08em;
  color: var(--neon-cyan);
  line-height: 1;
}

/* ---------- 双栏骨架 ---------- */
.page-contact .pc-shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-contact .pc-rail {
  display: none;
}

@media (min-width: 1024px) {
  .page-contact .pc-shell {
    display: grid;
    grid-template-columns: 186px minmax(0, 1fr);
    column-gap: 58px;
    align-items: start;
  }

  .page-contact .pc-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
    padding: 66px 0 40px;
  }
}

.page-contact .pc-rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--steel-mist);
}

.page-contact .rail-link {
  display: block;
  padding: 10px 0 10px 16px;
  border-left: 2px solid var(--line-dim);
  font-size: 14px;
  letter-spacing: 0.03em;
  line-height: 1.5;
  color: var(--steel-mist);
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-contact .rail-link:hover,
.page-contact .rail-link.is-active {
  color: var(--neon-cyan);
  border-left-color: var(--neon-cyan);
}

/* ---------- 章节节奏 ---------- */
.page-contact .pc-sec {
  padding: 8px 0 62px;
}

.page-contact .pc-sec--slab {
  padding: 44px clamp(20px, 3.4vw, 44px) 50px;
  background: var(--sea-slab);
  border-top: 1px solid var(--line-dim);
  border-bottom: 1px solid var(--line-dim);
  box-shadow: var(--shadow-hard);
}

.page-contact .section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  margin: 12px 0 0;
  max-width: 21ch;
}

.page-contact .section-sub {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--steel-mist);
}

/* ---------- 三条通道 ---------- */
.page-contact .pc-channels {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-contact .pc-channel {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 0 20px;
  padding: 30px 0;
  border-top: 1px solid var(--line-dim);
}

.page-contact .pc-channel:last-child {
  border-bottom: 1px solid var(--line-dim);
}

.page-contact .pc-channel-no {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--neon-cyan);
  padding-top: 4px;
}

.page-contact .pc-channel-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 0.03em;
}

.page-contact .pc-channel-value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 20px);
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--score-white);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel-desc {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.76;
  color: var(--steel-mist);
}

.page-contact .pc-channel-eta {
  margin: 0;
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line-dim);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--neon-cyan);
}

/* ---------- 流程时间轴 ---------- */
.page-contact .pc-timeline {
  list-style: none;
  position: relative;
  margin: 34px 0 0;
  padding: 0;
}

.page-contact .pc-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--neon-cyan) 0%, var(--line-dim) 82%);
}

.page-contact .pc-timeline > li {
  position: relative;
  padding: 0 0 34px 42px;
}

.page-contact .pc-timeline > li:last-child {
  padding-bottom: 0;
}

.page-contact .pc-node {
  position: absolute;
  left: 0;
  top: 7px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 0 5px rgba(53, 240, 208, 0.13);
}

.page-contact .pc-step h3 {
  margin: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.03em;
}

.page-contact .pc-step-time {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
  border-bottom: 1px solid var(--line-dim);
}

.page-contact .pc-step p {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-mist);
}

.page-contact .pc-step-tip {
  padding: 10px 14px;
  background: rgba(16, 41, 59, 0.6);
  border-left: 2px solid var(--cyan-deep);
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-mist);
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-contact .pc-timeline > li:hover .pc-step-tip {
  border-left-color: var(--neon-cyan);
  color: var(--score-white);
}

/* ---------- 合作洽谈 ---------- */
.page-contact .pc-partner .eyebrow {
  margin-top: 0;
}

.page-contact .pc-partner-grid {
  display: grid;
  gap: 34px;
  margin-top: 30px;
}

@media (min-width: 780px) {
  .page-contact .pc-partner-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 52px;
  }
}

.page-contact .pc-col-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--score-white);
}

.page-contact .pc-prep-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .pc-prep-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-dim);
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel-mist);
}

.page-contact .pc-prep-list .num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--neon-cyan);
}

.page-contact .pc-partner-types {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .pc-partner-types li {
  padding-left: 18px;
  border-left: 2px solid var(--grid-slate);
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel-mist);
}

.page-contact .pc-partner-types strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--score-white);
}

.page-contact .pc-inline-links {
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-dim);
  font-size: 15px;
  line-height: 1.82;
  color: var(--steel-mist);
}

.page-contact .pc-inline-links a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.42);
}

.page-contact .pc-inline-links a:hover {
  border-bottom-color: var(--neon-cyan);
}

/* ---------- 办公地址与到访 ---------- */
.page-contact .pc-visit {
  display: grid;
  gap: 34px;
}

@media (min-width: 860px) {
  .page-contact .pc-visit {
    grid-template-columns: minmax(0, 1fr) minmax(0, 288px);
    gap: 56px;
    align-items: start;
  }
}

.page-contact .pc-address {
  margin: 20px 0 18px;
  padding: 16px 18px;
  background: var(--grid-slate);
  border-left: 3px solid var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 21px);
  letter-spacing: 0.03em;
  line-height: 1.5;
  color: var(--score-white);
  overflow-wrap: anywhere;
}

.page-contact .pc-visit-copy {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-mist);
}

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

.page-contact .pc-visit-figure .frame {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border: 1px solid var(--line-dim);
  background: var(--sea-slab);
}

.page-contact .pc-visit-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 42%;
}

.page-contact .pc-visit-figure .frame-caption {
  margin-top: 10px;
}

/* ---------- 联系信息速查 ---------- */
.page-contact .pc-quick {
  margin: 30px 0 0;
  border-top: 1px solid var(--line-dim);
}

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

@media (min-width: 720px) {
  .page-contact .pc-quick-row {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .pc-quick-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel-mist);
}

.page-contact .pc-quick-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 19px);
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--score-white);
  overflow-wrap: anywhere;
  transition: color 0.2s var(--ease);
}

.page-contact .pc-quick-row:hover dd {
  color: var(--neon-cyan);
}

.page-contact .pc-quick-note {
  margin: 24px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--steel-mist);
}

.page-contact .pc-quick-note a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.42);
}

.page-contact .pc-quick-note a:hover {
  border-bottom-color: var(--neon-cyan);
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 620px) {
  .page-contact .pc-hero {
    padding-top: calc(var(--header-h) + 26px);
    padding-bottom: 46px;
  }

  .page-contact .pc-hero .eyebrow {
    margin-top: 22px;
  }

  .page-contact .pc-hero-metrics {
    gap: 14px;
    margin-top: 32px;
  }

  .page-contact .pc-hero-metrics li {
    max-width: none;
  }

  .page-contact .pc-channel {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 0 14px;
    padding: 24px 0;
  }

  .page-contact .pc-channel-no {
    font-size: 26px;
  }

  .page-contact .pc-timeline > li {
    padding-left: 34px;
  }

  .page-contact .pc-sec--slab {
    padding: 34px 18px 40px;
  }

  .page-contact .pc-sec {
    padding-bottom: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .rail-link,
  .page-contact .pc-step-tip,
  .page-contact .pc-quick-row dd {
    transition: none;
  }
}