.page-contact {
  --pc-max: 1440px;
  --pc-line: rgba(147, 169, 191, 0.22);
  --pc-line-strong: rgba(147, 169, 191, 0.45);
  --pc-gap: 24px;
  background: var(--pitch-900);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 分隔色带 ---------- */
.page-contact .pc-sep {
  height: 12px;
  width: 100%;
}
.page-contact .pc-sep--indigo {
  background: linear-gradient(90deg, var(--indigo-800), rgba(23, 35, 63, 0.35));
}
.page-contact .pc-sep--wine {
  background: linear-gradient(90deg, var(--wine-800), rgba(90, 30, 44, 0.3));
}
.page-contact .pc-sep--signal {
  background: linear-gradient(90deg, var(--signal-orange), rgba(255, 107, 26, 0.2));
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  border-bottom: 1px solid var(--pc-line);
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(255, 107, 26, 0.16), transparent 62%),
    linear-gradient(180deg, var(--pitch-900), var(--pitch-700));
}
.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  background-image:
    linear-gradient(var(--pc-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--pc-line) 1px, transparent 1px);
  background-size: 64px 64px;
}
.page-contact .pc-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--pc-max);
  margin: 0 auto;
  padding: clamp(26px, 6vw, 68px) var(--pad-x) clamp(34px, 6vw, 80px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}
.page-contact .breadcrumb {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cool-slate);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.page-contact .breadcrumb a {
  color: var(--cool-slate);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-line);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--signal-orange);
  border-color: var(--signal-orange);
}
.page-contact .pc-hero__kicker {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--signal-orange);
}
.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-size: clamp(36px, 8.6vw, 96px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-contact .pc-hero__lede {
  margin: 22px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cool-slate);
}
.page-contact .pc-hero__actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 首屏联系卡 ---------- */
.page-contact .pc-card {
  border: 1px solid var(--pc-line-strong);
  border-top: 3px solid var(--signal-orange);
  border-radius: var(--radius);
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(244, 246, 244, 0.1), rgba(244, 246, 244, 0.03)),
    var(--pitch-700);
  backdrop-filter: blur(8px);
}
.page-contact .pc-card__label {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal-orange);
}
.page-contact .pc-card__dl {
  margin: 0;
  display: grid;
  gap: 16px;
}
.page-contact .pc-card__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cool-slate);
  margin-bottom: 5px;
}
.page-contact .pc-card__row dd {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.page-contact .pc-card__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pc-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cool-slate);
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-section {
  max-width: var(--pc-max);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 88px) var(--pad-x);
}
.page-contact .pc-section--narrow {
  max-width: 1080px;
}
.page-contact .pc-head {
  max-width: 760px;
  margin-bottom: clamp(24px, 4vw, 44px);
}
.page-contact .pc-head__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal-orange);
}
.page-contact .pc-head__title {
  margin: 12px 0 0;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.22;
  font-weight: 800;
  color: var(--paper);
}
.page-contact .pc-head__desc {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool-slate);
}

/* ---------- 章节配图 ---------- */
.page-contact .pc-figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--charcoal-900);
}
.page-contact .pc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 四类合作方向 ---------- */
.page-contact .pc-dirs {
  list-style: none;
  margin: 0;
  padding: 0 0 12px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(78%, 1fr);
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.page-contact .pc-dir {
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px 20px 24px;
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--pc-accent, var(--signal-orange));
  border-radius: var(--radius);
  background: var(--pitch-700);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .pc-dirs > .pc-dir:nth-child(1) { --pc-accent: var(--signal-orange); }
.page-contact .pc-dirs > .pc-dir:nth-child(2) { --pc-accent: var(--warning-yellow); }
.page-contact .pc-dirs > .pc-dir:nth-child(3) { --pc-accent: var(--cool-slate); }
.page-contact .pc-dirs > .pc-dir:nth-child(4) { --pc-accent: var(--paper); }
.page-contact .pc-dir:hover,
.page-contact .pc-dir:focus-within {
  border-color: var(--signal-orange);
  box-shadow: inset 0 0 0 1px var(--signal-orange);
  transform: translateY(-2px);
}
.page-contact .pc-dir__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--pc-accent, var(--signal-orange));
}
.page-contact .pc-dir__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--paper);
}
.page-contact .pc-dir__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool-slate);
}
.page-contact .pc-dir__gain {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pc-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 四步流程 ---------- */
.page-contact .pc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .pc-flow__step {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--signal-orange);
  border-radius: var(--radius);
  background: var(--charcoal-900);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-contact .pc-flow__step:hover {
  border-color: var(--pc-line-strong);
  background: #14181d;
}
.page-contact .pc-flow__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal-orange);
}
.page-contact .pc-flow__title {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}
.page-contact .pc-flow__body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool-slate);
}
.page-contact .pc-flow__meta {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--warning-yellow);
}

/* ---------- 数据接入 ---------- */
.page-contact .pc-sync {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.page-contact .pc-sync__item {
  padding: 20px;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  background: var(--indigo-800);
}
.page-contact .pc-sync__k {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--warning-yellow);
}
.page-contact .pc-sync__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
}
.page-contact .pc-sync__v a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--signal-orange);
  transition: color var(--dur) var(--ease);
}
.page-contact .pc-sync__v a:hover,
.page-contact .pc-sync__v a:focus-visible {
  color: var(--signal-orange);
}

/* ---------- 合作场景 ---------- */
.page-contact .pc-scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.page-contact .pc-scene {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px 22px;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(244, 246, 244, 0.06), rgba(244, 246, 244, 0)),
    var(--pitch-700);
  transition: box-shadow var(--dur) var(--ease);
}
.page-contact .pc-scene:hover {
  box-shadow: inset 0 0 0 1px var(--signal-orange);
}
.page-contact .pc-scene__tag {
  margin: 0;
  display: inline-block;
  width: fit-content;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--charcoal-900);
  background: var(--warning-yellow);
  border-radius: var(--radius);
}
.page-contact .pc-scene__title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}
.page-contact .pc-scene__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cool-slate);
}
.page-contact .pc-scene__need {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pc-line);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--cool-slate);
}

/* ---------- 对接与跟进 ---------- */
.page-contact .pc-follow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-line);
}
.page-contact .pc-follow__item {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-line);
}
.page-contact .pc-follow__k {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal-orange);
}
.page-contact .pc-follow__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cool-slate);
}
.page-contact .pc-follow__v a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--cool-slate);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .pc-follow__v a:hover,
.page-contact .pc-follow__v a:focus-visible {
  color: var(--signal-orange);
  border-color: var(--signal-orange);
}

/* ---------- 全宽联系带 ---------- */
.page-contact .pc-band {
  background: var(--indigo-800);
  border-top: 3px solid var(--signal-orange);
}
.page-contact .pc-band__inner {
  max-width: var(--pc-max);
  margin: 0 auto;
  padding: clamp(38px, 6vw, 76px) var(--pad-x);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}
.page-contact .pc-band__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--signal-orange);
}
.page-contact .pc-band__title {
  margin: 14px 0 0;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}
.page-contact .pc-band__dl {
  margin: 26px 0 0;
  display: grid;
  gap: 18px;
}
.page-contact .pc-band__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cool-slate);
  margin-bottom: 5px;
}
.page-contact .pc-band__row dd {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.page-contact .pc-band__note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(147, 169, 191, 0.35);
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool-slate);
}
.page-contact .pc-band__actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-contact .pc-band__media {
  margin: 0;
  border: 1px solid rgba(147, 169, 191, 0.35);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pitch-900);
}
.page-contact .pc-band__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-sync {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-contact .pc-dirs {
    grid-auto-flow: row;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow-x: visible;
    padding-bottom: 0;
  }
  .page-contact .pc-dir {
    padding: 26px 24px 28px;
  }
  .page-contact .pc-follow__item {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-contact .pc-flow__step {
    border: none;
    border-left: 1px solid var(--pc-line);
    border-radius: 0;
    padding: 22px 22px 26px 20px;
    background: transparent;
  }
  .page-contact .pc-flow__step:first-child {
    border-left-color: var(--signal-orange);
  }
  .page-contact .pc-flow__step:last-child {
    padding-right: 0;
  }
  .page-contact .pc-flow__step::after {
    content: "→";
    position: absolute;
    top: 30px;
    right: -8px;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--signal-orange);
  }
  .page-contact .pc-flow__step:last-child::after {
    display: none;
  }
  .page-contact .pc-flow__step:hover {
    background: rgba(244, 246, 244, 0.04);
  }
  .page-contact .pc-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.8fr);
    align-items: start;
  }
  .page-contact .pc-band__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
  }
  .page-contact .pc-card {
    padding: 26px;
  }
  .page-contact .pc-sync__item {
    padding: 26px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-dir,
  .page-contact .pc-dir:hover,
  .page-contact .pc-flow__step,
  .page-contact .pc-scene,
  .page-contact .breadcrumb a,
  .page-contact .pc-follow__v a {
    transition: none;
    transform: none;
  }
}