.page-contact {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: 1.75;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-contact .ct-copy {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--text-2);
}

.page-contact .ct-copy--tight {
  margin-top: 22px;
  font-size: var(--fs-14);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: 44px 0 62px;
  background:
    radial-gradient(880px 420px at 10% -14%, rgba(27, 77, 255, 0.34), transparent 62%),
    radial-gradient(680px 360px at 90% 4%, rgba(0, 229, 192, 0.15), transparent 60%),
    var(--ink-900);
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(120, 133, 181, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 133, 181, 0.13) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 78%);
}

.page-contact .ct-hero .shell {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 9vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .ct-hero__title::after {
  content: "";
  display: block;
  width: 84px;
  height: 4px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--brand), var(--cyan));
}

.page-contact .ct-hero__lede {
  max-width: 46ch;
  margin: 22px 0 0;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-2);
}

/* ---------- 渠道 + 反馈 不对称双栏 ---------- */
.page-contact .ct-channels {
  padding: 68px 0 24px;
}

.page-contact .ct-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
}

.page-contact .ct-split__main {
  min-width: 0;
}

.page-contact .ct-channel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
  padding: 26px 22px 30px;
  border: 1px solid var(--ink-700);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-900) 78%);
  box-shadow: var(--shadow-paper);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-contact .ct-channel:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-paper-hover);
}

.page-contact .ct-channel__mark {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.4rem, 9vw, 3.75rem);
  line-height: 0.86;
  letter-spacing: -0.05em;
  color: var(--brand-soft);
}

.page-contact .ct-channel--phone .ct-channel__mark {
  color: var(--cyan);
}

.page-contact .ct-channel__body {
  min-width: 0;
}

.page-contact .ct-channel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-28);
  line-height: 1.15;
  color: var(--paper);
}

.page-contact .ct-channel__desc {
  margin: 12px 0 0;
  color: var(--text-2);
  max-width: 56ch;
}

.page-contact .ct-channel__value {
  display: inline-block;
  max-width: 100%;
  margin-top: 16px;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  letter-spacing: 0.02em;
  word-break: break-all;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid var(--ink-700);
  background: rgba(0, 229, 192, 0.07);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .ct-channel__value:hover,
.page-contact .ct-channel__value:focus-visible {
  border-color: var(--cyan);
  background: rgba(0, 229, 192, 0.16);
  color: var(--paper);
}

/* 反馈卡 */
.page-contact .ct-split__side {
  min-width: 0;
}

.page-contact .ct-feedback {
  position: relative;
  margin-top: 26px;
  padding: 38px 22px 28px;
  border: 1px solid var(--ink-700);
  background: linear-gradient(200deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-paper);
}

.page-contact .ct-feedback::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(0, 229, 192, 0.06) 0,
    rgba(0, 229, 192, 0.06) 1px,
    transparent 1px,
    transparent 12px
  );
}

.page-contact .ct-feedback > * {
  position: relative;
}

.page-contact .ct-feedback__tag {
  position: absolute;
  top: -12px;
  left: 22px;
  padding: 5px 13px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--ink-900);
  background: var(--amber);
}

.page-contact .ct-feedback__title {
  font-size: clamp(1.35rem, 3.4vw, 1.7rem);
  margin-top: 0;
}

.page-contact .ct-feedback__text {
  margin: 14px 0 0;
  color: var(--text-2);
  font-size: var(--fs-14);
}

.page-contact .ct-feedback__list {
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--ink-700);
}

.page-contact .ct-feedback__list li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: var(--fs-14);
  color: var(--text-2);
  border-bottom: 1px dashed var(--ink-700);
}

.page-contact .ct-feedback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 回复安排 ---------- */
.page-contact .ct-hours {
  padding: 56px 0 64px;
  border-top: 1px solid var(--ink-700);
}

.page-contact .ct-hours__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: center;
}

.page-contact .ct-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  border: 1px solid var(--ink-700);
  background: var(--ink-700);
}

.page-contact .ct-metric {
  padding: 20px 16px;
  background: var(--ink-900);
}

.page-contact .ct-metric__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .ct-metric__label {
  margin: 0 0 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--steel);
}

/* 图片容器 */
.page-contact .ct-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--ink-700);
  background: linear-gradient(150deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-paper);
  overflow: hidden;
}

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

.page-contact .ct-figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--cyan);
  background: rgba(11, 16, 48, 0.88);
  border-top: 1px solid var(--ink-700);
  border-right: 1px solid var(--ink-700);
}

/* ---------- 地址与地区 ---------- */
.page-contact .ct-place {
  padding: 64px 0 68px;
  border-top: 1px solid var(--ink-700);
  background: linear-gradient(180deg, rgba(22, 27, 63, 0.55), rgba(11, 16, 48, 0));
}

.page-contact .ct-place__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: center;
}

.page-contact .ct-place__addr {
  margin: 20px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--brand);
  font-size: clamp(1.15rem, 3.4vw, 1.6rem);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .ct-facts {
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--ink-700);
}

.page-contact .ct-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .ct-facts__row dt {
  font-size: var(--fs-14);
  color: var(--steel);
  letter-spacing: 0.04em;
}

.page-contact .ct-facts__row dd {
  margin: 0;
  font-size: var(--fs-16);
  color: var(--text);
  word-break: break-all;
}

/* ---------- 纠错与协作 ---------- */
.page-contact .ct-collab {
  padding: 64px 0 72px;
  border-top: 1px solid var(--ink-700);
}

.page-contact .ct-collab__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.page-contact .ct-collab__item {
  padding: 26px 22px 28px;
  border: 1px solid var(--ink-700);
  border-top: 3px solid var(--brand);
  background: var(--ink-800);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .ct-collab__item:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  border-top-color: var(--cyan);
}

.page-contact .ct-collab__label {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .ct-collab__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .ct-collab__item p:last-child {
  margin: 12px 0 0;
  color: var(--text-2);
  font-size: var(--fs-14);
}

/* ---------- 提交准备（浅色带） ---------- */
.page-contact .ct-band {
  padding: 64px 0 72px;
  background: var(--paper);
  color: var(--ink-900);
  border-top: 2px solid var(--brand);
}

.page-contact .ct-band h2 {
  color: var(--ink-900);
}

.page-contact .ct-band .eyebrow {
  color: var(--brand);
}

.page-contact .ct-band__lede {
  max-width: 60ch;
  margin: 16px 0 0;
  color: var(--ink-600);
}

.page-contact .ct-band__lede a {
  color: var(--brand);
}

.page-contact .ct-checklist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(35, 43, 92, 0.22);
  background: rgba(35, 43, 92, 0.22);
}

.page-contact .ct-checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 18px 16px;
  background: var(--paper);
}

.page-contact .ct-checklist__idx {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--brand);
}

.page-contact .ct-checklist__body {
  color: var(--ink-600);
  font-size: var(--fs-14);
}

.page-contact .ct-checklist__body strong {
  color: var(--ink-900);
  font-weight: 700;
}

.page-contact .ct-band__foot {
  margin: 28px 0 0;
  font-size: var(--fs-14);
  color: var(--ink-600);
}

.page-contact .ct-band__foot a {
  color: var(--brand);
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-channel {
    grid-template-columns: minmax(76px, auto) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
    padding: 32px 28px 36px;
  }

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

  .page-contact .ct-collab__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 1024px) {
  .page-contact .ct-hero {
    padding: 60px 0 84px;
  }

  .page-contact .ct-channels {
    padding: 88px 0 32px;
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 64px;
    align-items: start;
  }

  .page-contact .ct-split__side {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-contact .ct-hours {
    padding: 72px 0 88px;
  }

  .page-contact .ct-hours__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 64px;
  }

  .page-contact .ct-place {
    padding: 88px 0 96px;
  }

  .page-contact .ct-place__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 64px;
  }

  .page-contact .ct-collab {
    padding: 84px 0 96px;
  }

  .page-contact .ct-collab__grid {
    gap: 32px;
  }

  .page-contact .ct-band {
    padding: 84px 0 92px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-collab__item,
  .page-contact .ct-channel__value {
    transition: none;
  }

  .page-contact .ct-channel:hover,
  .page-contact .ct-collab__item:hover {
    transform: none;
  }
}