.page-contact {
  --pc-cut: 26px;
  --pc-gap: 16px;
  --pc-panel-bg: rgba(19, 28, 49, 0.72);
}

/* ---------- 首屏：框景 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  background: var(--k8-void);
  border-bottom: 1px solid var(--k8-border);
}

.page-contact .pc-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(0.75) contrast(1.05);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(118deg, rgba(5, 7, 12, 0.96) 0%, rgba(5, 7, 12, 0.62) 46%, rgba(12, 18, 32, 0.92) 100%);
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 2;
  padding: var(--k8-s48) 0 var(--k8-s48);
}

.page-contact .pc-hero__plate {
  position: relative;
  max-width: 880px;
  padding: var(--k8-s24);
  background: var(--pc-panel-bg);
  border: 1px solid var(--k8-border);
  clip-path: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
}

.page-contact .pc-hero__plate::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--pc-cut);
  width: 128px;
  height: 2px;
  background: linear-gradient(90deg, var(--k8-lime), rgba(182, 255, 60, 0));
}

.page-contact .pc-hero__lede {
  margin: var(--k8-s16) 0 0;
  font-size: var(--k8-t16);
  line-height: 1.75;
  color: var(--k8-text);
  max-width: 62ch;
}

.page-contact .pc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--k8-s8) var(--k8-s24);
  margin: var(--k8-s24) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.04em;
  color: var(--k8-text-dim);
}

.page-contact .pc-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: var(--k8-s8);
}

.page-contact .pc-hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--k8-lime);
  box-shadow: 0 0 0 3px rgba(182, 255, 60, 0.15);
}

/* ---------- 通用小标题 ---------- */
.page-contact .pc-head {
  margin-bottom: var(--k8-s32);
  max-width: 64ch;
}

.page-contact .pc-head__note {
  margin: var(--k8-s12) 0 0;
  color: var(--k8-text-dim);
}

/* ---------- 联络入口卡片 ---------- */
.page-contact .pc-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: var(--k8-s12);
  padding: var(--k8-s24);
}

.page-contact .pc-card__flag {
  display: inline-flex;
  align-items: center;
  gap: var(--k8-s8);
  margin: 0;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.05em;
  color: var(--k8-text-dim);
}

.page-contact .pc-card__name {
  margin: 0;
  font-size: var(--k8-t20);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--k8-text);
}

.page-contact .pc-card__value {
  margin: 0;
  font-size: var(--k8-t16);
  font-weight: 700;
  color: var(--k8-cyan);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-card--addr .pc-card__value {
  color: var(--k8-text);
  font-weight: 600;
}

.page-contact .pc-card__desc {
  margin: 0;
  font-size: var(--k8-t14);
  line-height: 1.8;
  color: var(--k8-text-dim);
}

.page-contact .pc-card--feedback {
  background: linear-gradient(160deg, rgba(46, 123, 255, 0.18) 0%, var(--k8-surface) 62%);
  border-color: rgba(46, 123, 255, 0.5);
}

/* ---------- 渠道切换 ---------- */
.page-contact .pc-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--k8-s32);
}

.page-contact .pc-prep {
  margin: var(--k8-s16) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pc-prep;
  display: grid;
  gap: var(--k8-s12);
}

.page-contact .pc-prep li {
  position: relative;
  counter-increment: pc-prep;
  padding: var(--k8-s12) 0 var(--k8-s12) var(--k8-s48);
  border-top: 1px solid var(--k8-border);
  font-size: var(--k8-t14);
  line-height: 1.8;
  color: var(--k8-text-dim);
}

.page-contact .pc-prep li::before {
  content: counter(pc-prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: var(--k8-s12);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-orange);
  letter-spacing: 0.06em;
}

.page-contact .pc-prep strong {
  color: var(--k8-text);
  font-weight: 700;
}

.page-contact .pc-channels__fig {
  margin: var(--k8-s24) 0 0;
}

.page-contact .pc-panel {
  padding-top: var(--k8-s24);
}

.page-contact .pc-panel__list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--k8-border);
  border: 1px solid var(--k8-border);
}

.page-contact .pc-panel__row {
  background: var(--k8-bg-alt);
  padding: var(--k8-s16);
  display: grid;
  gap: var(--k8-s8);
}

.page-contact .pc-panel__row dt {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.06em;
  color: var(--k8-cyan);
}

.page-contact .pc-panel__row dd {
  margin: 0;
  font-size: var(--k8-t14);
  line-height: 1.8;
  color: var(--k8-text);
}

.page-contact .pc-panel__row dd a {
  color: var(--k8-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .pc-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--k8-border);
  border: 1px solid var(--k8-border);
}

.page-contact .pc-stat {
  background: var(--k8-surface);
  padding: var(--k8-s16);
  display: flex;
  flex-direction: column;
  gap: var(--k8-s8);
}

.page-contact .pc-stat__num {
  margin: 0;
  font-size: var(--k8-t26);
  font-weight: 700;
  line-height: 1.1;
  color: var(--k8-lime);
  letter-spacing: -0.02em;
}

.page-contact .pc-stat__num span {
  font-size: var(--k8-t12);
  margin-left: 4px;
  letter-spacing: 0.04em;
  color: var(--k8-text-dim);
}

.page-contact .pc-stat__label {
  margin: 0;
  font-size: var(--k8-t14);
  line-height: 1.7;
  color: var(--k8-text-dim);
}

.page-contact .pc-response__notes {
  margin-top: var(--k8-s24);
  display: grid;
  gap: var(--k8-s16);
  max-width: 76ch;
}

.page-contact .pc-response__notes p {
  margin: 0;
  padding-left: var(--k8-s16);
  border-left: 2px solid var(--k8-border);
  font-size: var(--k8-t14);
  line-height: 1.85;
  color: var(--k8-text-dim);
}

/* ---------- 档案纸面板 ---------- */
.page-contact .pc-paper {
  background: var(--k8-paper);
  color: var(--k8-ink);
  padding: var(--k8-s24);
  border: 1px solid rgba(28, 26, 23, 0.18);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-contact .pc-paper__eyebrow {
  color: #7A6F58;
}

.page-contact .pc-paper__title {
  margin: var(--k8-s8) 0 0;
  font-size: var(--k8-t26);
  color: var(--k8-ink);
  letter-spacing: -0.01em;
}

.page-contact .pc-paper__note {
  margin: var(--k8-s12) 0 var(--k8-s24);
  font-size: var(--k8-t14);
  line-height: 1.8;
  color: #5C5344;
}

.page-contact .pc-register__list {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(28, 26, 23, 0.22);
}

.page-contact .pc-register__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--k8-s4);
  padding: var(--k8-s12) 0;
  border-bottom: 1px solid rgba(28, 26, 23, 0.22);
}

.page-contact .pc-register__row dt {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.06em;
  color: #7A6F58;
}

.page-contact .pc-register__row dd {
  margin: 0;
  font-size: var(--k8-t16);
  font-weight: 600;
  color: var(--k8-ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-paper__foot {
  margin: var(--k8-s24) 0 0;
  font-size: var(--k8-t14);
  line-height: 1.85;
  color: #5C5344;
}

.page-contact .pc-paper__foot a {
  color: #1E56C8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-hero__inner {
    padding: var(--k8-s72) 0 var(--k8-s72);
  }

  .page-contact .pc-hero__plate {
    padding: var(--k8-s32);
  }

  .page-contact .pc-hero__lede {
    font-size: 17px;
  }

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

  .page-contact .pc-card--feedback,
  .page-contact .pc-card--addr {
    grid-column: span 2;
  }

  .page-contact .pc-stat {
    padding: var(--k8-s24);
  }

  .page-contact .pc-panel__row {
    grid-template-columns: 120px 1fr;
    align-items: start;
    gap: var(--k8-s16);
  }

  .page-contact .pc-register__row {
    grid-template-columns: 140px 1fr;
    align-items: baseline;
    gap: var(--k8-s16);
  }

  .page-contact .pc-paper {
    padding: var(--k8-s48);
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-cards {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-contact .pc-card--feedback { grid-column: span 7; }
  .page-contact .pc-card--mail { grid-column: span 5; }
  .page-contact .pc-card--phone { grid-column: span 4; }
  .page-contact .pc-card--addr { grid-column: span 8; }

  .page-contact .pc-channels__grid {
    grid-template-columns: 5fr 7fr;
    gap: var(--k8-s48);
    align-items: start;
  }

  .page-contact .pc-channels__fig {
    margin-top: var(--k8-s32);
  }

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

  .page-contact .pc-response__notes {
    margin-top: var(--k8-s32);
  }
}

@media (min-width: 1280px) {
  .page-contact .pc-hero__inner {
    padding: var(--k8-s72) 0 96px;
  }

  .page-contact .pc-hero__plate {
    padding: var(--k8-s48);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-hero__bg {
    opacity: 0.32;
  }
}