.page-contact {
  background: var(--jb-ink);
  color: var(--jb-body);
  overflow-x: clip;
}

/* ---------- hero ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(22px, 4.5vw, 48px) 0 clamp(30px, 5vw, 64px);
  background:
    radial-gradient(110% 75% at 88% 0%, rgba(46, 255, 181, .14), transparent 58%),
    linear-gradient(180deg, var(--jb-ink) 0%, var(--jb-ink-deep) 100%);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-image: linear-gradient(90deg, var(--jb-line) 50%, transparent 50%);
  background-size: 12px 1px;
  opacity: .85;
  pointer-events: none;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(22px, 3.6vw, 44px);
  margin-top: clamp(18px, 2.6vw, 30px);
}

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

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--jb-line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: 14px 18px;
}

.page-contact .pc-hero__num {
  display: block;
  font-family: var(--jb-font-mono);
  font-size: clamp(17px, 2.3vw, 23px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--jb-gold);
  line-height: 1.15;
}

.page-contact .pc-hero__lab {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--jb-body);
}

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

/* ---------- 合作方向 ---------- */
.page-contact .pc-dirs {
  background: var(--jb-ink);
}

.page-contact .pc-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 28px);
}

.page-contact .pc-dirs__grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-dir {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 22px 20px 20px;
  border: 1px solid var(--jb-line);
  border-left: 3px solid var(--jb-neon);
  border-radius: var(--jb-radius);
  background: linear-gradient(180deg, rgba(18, 46, 38, .95), rgba(11, 31, 26, .95));
  box-shadow: 0 14px 0 -9px rgba(30, 74, 60, .55);
  transition: border-color .2s ease, transform .2s ease;
}

.page-contact .pc-dir[hidden] {
  display: none;
}

.page-contact .pc-dir:hover {
  transform: translateY(-3px);
  border-color: rgba(46, 255, 181, .55);
}

.page-contact .pc-dir__head {
  display: grid;
  gap: 10px;
}

.page-contact .pc-dir__head h3 {
  margin: 0;
  color: var(--jb-white);
}

.page-contact .pc-dir p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .pc-dir__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .pc-dir__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .pc-dir__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  background: var(--jb-neon);
  box-shadow: 0 0 8px rgba(46, 255, 181, .6);
}

.page-contact .pc-dir__foot {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--jb-line);
}

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

.page-contact .pc-dirs__figure {
  margin: clamp(24px, 4vw, 38px) 0 0;
  max-width: 520px;
}

/* ---------- 合作流程 ---------- */
.page-contact .pc-flow {
  background: var(--jb-ink-deep);
}

.page-contact .pc-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-flow__step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: 1px dashed var(--jb-line);
}

.page-contact .pc-flow__step:last-child {
  border-bottom: 1px dashed var(--jb-line);
}

.page-contact .pc-flow__num {
  font-family: var(--jb-font-mono);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--jb-neon);
  letter-spacing: .04em;
}

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

.page-contact .pc-flow__body h3 {
  margin: 0 0 8px;
  color: var(--jb-white);
}

.page-contact .pc-flow__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 联系方式 ---------- */
.page-contact .pc-contact {
  background: var(--jb-ink);
}

.page-contact .pc-contact__grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 52px);
  grid-template-columns: minmax(0, 1fr);
}

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

.page-contact .pc-contact__cards {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .pc-chan {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 18px 20px;
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-radius);
  background: var(--jb-board);
  text-decoration: none;
  color: var(--jb-white);
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}

.page-contact .pc-chan:hover,
.page-contact .pc-chan:focus-visible {
  border-color: var(--jb-neon);
  background: rgba(18, 46, 38, 1);
  transform: translateX(4px);
}

.page-contact .pc-chan__lab {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--jb-body);
  text-transform: uppercase;
}

.page-contact .pc-chan__val {
  font-family: var(--jb-font-mono);
  font-size: clamp(17px, 2.5vw, 23px);
  font-weight: 700;
  color: var(--jb-neon);
  word-break: break-all;
  line-height: 1.3;
}

.page-contact .pc-chan__hint {
  font-size: 12px;
  color: var(--jb-body);
}

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

.page-contact .pc-stamp {
  position: relative;
  min-width: 0;
  padding: 24px 22px;
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-radius);
  background: var(--jb-board);
  box-shadow:
    0 16px 0 -10px rgba(30, 74, 60, .6),
    0 28px 0 -20px rgba(30, 74, 60, .35);
}

.page-contact .pc-stamp__head {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.page-contact .pc-stamp__name {
  margin: 0;
  font-family: var(--jb-font-head);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--jb-white);
}

.page-contact .pc-stamp__rows {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-stamp__row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px dashed var(--jb-line);
}

.page-contact .pc-stamp__row:first-child {
  border-top: none;
  padding-top: 0;
}

.page-contact .pc-stamp__row dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--jb-body);
  text-transform: uppercase;
}

.page-contact .pc-stamp__row dd {
  margin: 0;
  min-width: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--jb-white);
  word-break: break-word;
}

.page-contact .pc-stamp__row dd a {
  color: var(--jb-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 255, 181, .4);
  word-break: break-all;
}

.page-contact .pc-stamp__row dd a:hover,
.page-contact .pc-stamp__row dd a:focus-visible {
  border-bottom-color: var(--jb-neon);
}

.page-contact .pc-stamp__mono {
  font-family: var(--jb-font-mono);
  letter-spacing: .06em;
  color: var(--jb-gold);
}

.page-contact .pc-stamp__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--jb-line);
}

/* ---------- 数据问题反馈 ---------- */
.page-contact .pc-report {
  background: linear-gradient(180deg, var(--jb-ink-deep) 0%, var(--jb-ink) 100%);
}

.page-contact .pc-report__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

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

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

.page-contact .pc-report__list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-radius);
  background: rgba(18, 46, 38, .7);
}

.page-contact .pc-report__idx {
  font-family: var(--jb-font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  padding-top: 4px;
  color: var(--jb-gold);
}

.page-contact .pc-report__list h3 {
  margin: 0 0 6px;
  color: var(--jb-white);
}

.page-contact .pc-report__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .pc-report__foot {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--jb-line);
}

/* ---------- 后续入口 ---------- */
.page-contact .pc-links {
  background: var(--jb-ink);
  padding-top: clamp(24px, 4vw, 40px);
}

.page-contact .pc-links__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .pc-link {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-radius);
  background: var(--jb-board);
  text-decoration: none;
  color: var(--jb-body);
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.page-contact .pc-link:hover,
.page-contact .pc-link:focus-visible {
  border-color: var(--jb-neon);
  background: rgba(18, 46, 38, .95);
  transform: translateY(-2px);
}

.page-contact .pc-link__num {
  font-family: var(--jb-font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--jb-gold);
}

.page-contact .pc-link__title {
  font-family: var(--jb-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--jb-white);
}

.page-contact .pc-link__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--jb-body);
}

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

@media (min-width: 720px) {
  .page-contact .pc-dirs__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-report__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-contact .pc-contact__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-dirs__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .page-contact .pc-dir:hover,
  .page-contact .pc-link:hover,
  .page-contact .pc-chan:hover {
    transform: none;
  }
}