.page-contact {
  --pc-accent-line: rgba(0, 230, 118, 0.55);
  background: var(--c-ink);
  color: var(--txt-on-dark);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(40px, 6.5vw, 92px) 0 clamp(34px, 5vw, 62px);
  background:
    radial-gradient(760px 400px at 6% -12%, rgba(18, 36, 92, 0.95), transparent 68%),
    linear-gradient(180deg, var(--c-ink-deep) 0%, var(--c-ink) 100%);
  border-bottom: 1px solid var(--line-dark);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: clamp(12px, 3vw, 40px);
  width: 1px;
  height: 100%;
  background: repeating-linear-gradient(180deg, rgba(124, 139, 176, 0.6) 0 1px, transparent 1px 30px);
  opacity: 0.45;
  pointer-events: none;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-contact .breadcrumb__link {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.22s var(--ease-out);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--c-neon);
}

.page-contact .breadcrumb__sep {
  color: rgba(124, 139, 176, 0.6);
}

.page-contact .breadcrumb__current {
  color: var(--txt-on-dark);
}

.page-contact .pc-hero__eyebrow {
  margin: 30px 0 0;
  color: var(--c-neon);
}

.page-contact .pc-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(1.95rem, 5.4vw, 3.9rem);
  font-weight: 250;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--txt-on-dark);
  max-width: 20ch;
}

.page-contact .pc-hero__lede {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
  line-height: 1.78;
  color: var(--txt-on-dark-dim);
}

.page-contact .pc-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 22px;
  margin: 38px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .pc-hero__stat dt {
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-contact .pc-hero__stat dd {
  margin: 8px 0 0;
  font-size: clamp(1.24rem, 2.4vw, 1.7rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-neon);
}

/* ---------- 双栏外壳 ---------- */
.page-contact .pc-shell {
  padding-top: clamp(36px, 5.5vw, 72px);
  padding-bottom: clamp(64px, 8vw, 112px);
}

.page-contact .pc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

/* ---------- 左侧固定联系卡 ---------- */
.page-contact .pc-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-contact .pc-card {
  padding: 24px 20px;
  border: 1px solid var(--c-glass-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-contact .pc-card__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--c-neon);
}

.page-contact .pc-card__row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(124, 139, 176, 0.3);
}

.page-contact .pc-card__key {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-contact .pc-card__val {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--txt-on-dark);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease-out), border-color 0.22s var(--ease-out);
}

.page-contact .pc-card__val:hover,
.page-contact .pc-card__val:focus-visible {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

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

.page-contact .pc-card__hint {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--txt-on-dark-dim);
}

.page-contact .pc-side__note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-orange);
  font-size: 0.8rem;
  line-height: 1.72;
  color: var(--c-mist);
}

/* ---------- 右侧长卷 ---------- */
.page-contact .pc-main {
  display: flex;
  flex-direction: column;
  gap: clamp(52px, 7vw, 96px);
  min-width: 0;
}

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

.page-contact .chapter__title {
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-contact .chapter__index {
  color: var(--c-neon);
}

.page-contact .pc-block .lead {
  max-width: 62ch;
  margin-top: 16px;
  color: var(--txt-on-dark-dim);
  line-height: 1.78;
}

/* ---------- 图片 ---------- */
.page-contact .pc-figure {
  position: relative;
  margin: 32px 0 0;
  border: 1px solid var(--line-dark);
  background: var(--c-ink-deep);
  overflow: hidden;
}

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

.page-contact .pc-figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 44px;
  border-top: 2px solid var(--c-neon);
  border-left: 2px solid var(--c-neon);
  z-index: 1;
  pointer-events: none;
}

/* ---------- 合作类型非对称色块 ---------- */
.page-contact .type-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.page-contact .type-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  min-width: 0;
  background: linear-gradient(158deg, var(--c-pitch) 0%, rgba(11, 22, 51, 0.92) 100%);
  border-top: 3px solid var(--c-mist);
}

.page-contact .type-card:nth-child(1) {
  border-top-color: var(--c-neon);
}

.page-contact .type-card:nth-child(2) {
  border-top-color: var(--c-orange);
}

.page-contact .type-card:nth-child(3) {
  border-top-color: var(--c-lime);
}

.page-contact .type-card:nth-child(4) {
  border-top-color: var(--c-aqua);
}

.page-contact .type-card__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--c-mist);
}

.page-contact .type-card__title {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--txt-on-dark);
}

.page-contact .type-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--txt-on-dark-dim);
}

.page-contact .type-card__list {
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--txt-on-dark-dim);
}

.page-contact .type-card__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .type-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--c-neon);
}

/* ---------- 流程步骤 ---------- */
.page-contact .steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-contact .step {
  position: relative;
  padding: 0 0 36px 74px;
  min-width: 0;
}

.page-contact .step__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  color: var(--c-neon);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--c-glass-line);
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 56px;
  bottom: 6px;
  width: 1px;
  background: repeating-linear-gradient(180deg, var(--pc-accent-line) 0 7px, transparent 7px 15px);
}

.page-contact .step:last-child {
  padding-bottom: 0;
}

.page-contact .step:last-child::before {
  display: none;
}

.page-contact .step__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--txt-on-dark);
}

.page-contact .step p {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--txt-on-dark-dim);
}

/* ---------- 合作收益 ---------- */
.page-contact .benefit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 30px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-contact .benefit {
  padding: 24px 22px;
  background: var(--c-ink);
}

.page-contact .benefit__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--c-neon);
}

.page-contact .benefit p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.76;
  color: var(--txt-on-dark-dim);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.page-contact .contact-cell {
  padding: 22px 20px;
  background: var(--c-glass);
  border: 1px solid var(--c-glass-line);
  border-left: 3px solid rgba(124, 139, 176, 0.5);
  min-width: 0;
}

.page-contact .contact-cell--primary {
  border-left-color: var(--c-neon);
}

.page-contact .contact-cell__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-contact .contact-cell__val {
  display: block;
  margin-top: 12px;
  font-size: clamp(0.94rem, 1.7vw, 1.12rem);
  line-height: 1.5;
  color: var(--txt-on-dark);
  text-decoration: none;
  word-break: break-word;
  transition: color 0.22s var(--ease-out);
}

.page-contact .contact-cell--primary .contact-cell__val:hover,
.page-contact .contact-cell--primary .contact-cell__val:focus-visible {
  color: var(--c-neon);
}

.page-contact .pc-note {
  max-width: 68ch;
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--c-orange);
  background: rgba(255, 138, 31, 0.06);
  font-size: 0.86rem;
  line-height: 1.78;
  color: var(--txt-on-dark-dim);
}

/* ---------- 浮动返回 ---------- */
.page-contact .pc-jump {
  position: fixed;
  right: clamp(16px, 3vw, 40px);
  bottom: clamp(16px, 3vw, 36px);
  z-index: 40;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-ink-deep);
  background: var(--c-neon);
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(0, 230, 118, 0.22);
  transition: transform 0.24s var(--ease-out);
}

.page-contact .pc-jump:hover,
.page-contact .pc-jump:focus-visible {
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-contact .pc-jump {
    display: inline-flex;
  }
}

@media (min-width: 880px) {
  .page-contact .type-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .type-card--wide {
    grid-column: span 2;
  }

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

@media (min-width: 980px) {
  .page-contact .pc-layout {
    grid-template-columns: 292px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .pc-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-card__val,
  .page-contact .contact-cell__val,
  .page-contact .pc-jump,
  .page-contact .breadcrumb__link {
    transition: none;
  }
}