.page-contact {
  --ct-pad: clamp(18px, 4vw, 44px);
  display: block;
  background-color: var(--wh-night);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--wh-night);
  color: var(--wh-fg);
  padding-top: calc(var(--wh-header-h) + clamp(26px, 6vw, 62px));
  padding-bottom: clamp(44px, 8vw, 96px);
}

.page-contact .ct-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-contact .ct-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 58%;
  opacity: 0.42;
  filter: grayscale(0.25) contrast(1.08) brightness(0.82);
}

.page-contact .ct-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 13, 20, 0.88) 0%, rgba(11, 27, 43, 0.28) 38%, rgba(11, 27, 43, 0.97) 100%),
    linear-gradient(100deg, rgba(11, 27, 43, 0.96) 10%, rgba(11, 27, 43, 0.12) 78%);
}

.page-contact .ct-hero__slash {
  position: absolute;
  right: -12vw;
  bottom: -10vw;
  width: min(60vw, 620px);
  aspect-ratio: 16 / 9;
  background-color: var(--wh-signal);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.18;
  pointer-events: none;
  z-index: 1;
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 2;
}

.page-contact .ct-hero__title {
  margin: 12px 0 0;
  max-width: 17ch;
}

.page-contact .ct-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--wh-fg-dim);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .ct-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 36px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--wh-hairline);
  list-style: none;
}

.page-contact .ct-hero__fact {
  position: relative;
  padding-left: 16px;
  font-family: var(--wh-font-mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--wh-fg-dim);
}

.page-contact .ct-hero__fact::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background-color: var(--wh-signal);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

/* ---------- 邮箱 / 电话 / 地址 ---------- */
.page-contact .ct-channels {
  padding-block: clamp(46px, 8vw, 92px);
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-contact .ct-channels__intro {
  margin: 14px 0 0;
  max-width: 58ch;
}

.page-contact .ct-channel-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--wh-line);
}

.page-contact .ct-channel {
  position: relative;
  padding: 24px 0;
  border-bottom: 1px solid var(--wh-line);
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 46px;
  height: 3px;
  background-color: var(--wh-signal);
}

.page-contact .ct-channel__label {
  display: block;
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--wh-muted);
}

.page-contact .ct-channel__value {
  margin: 10px 0 0;
  font-family: var(--wh-font-mono);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--wh-fg);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .ct-channel__value--mail {
  font-size: clamp(20px, 5vw, 40px);
}

.page-contact .ct-channel__value--tel {
  font-size: clamp(30px, 7vw, 54px);
  letter-spacing: 0.01em;
}

.page-contact .ct-channel__value--addr {
  max-width: 30ch;
  font-family: var(--wh-font-title);
  font-size: clamp(16px, 2.3vw, 20px);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0;
}

.page-contact .ct-channel__note {
  margin: 10px 0 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

.page-contact .ct-channels__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--wh-radius);
  background-color: var(--wh-night-2);
}

.page-contact .ct-channels__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 50% 45%;
  filter: grayscale(0.2) contrast(1.05);
}

.page-contact .ct-channels__cap {
  display: block;
  padding: 12px 16px;
  background-color: var(--wh-night);
  color: var(--wh-paper);
  font-size: 13px;
  line-height: 1.65;
}

/* ---------- 按问题找通道 ---------- */
.page-contact .ct-routing {
  padding-block: clamp(46px, 8vw, 92px);
}

.page-contact .ct-routing__head {
  max-width: 64ch;
}

.page-contact .ct-routing__lead {
  margin-top: 14px;
  color: var(--wh-fg-dim);
}

.page-contact .ct-tabs {
  margin-top: 30px;
}

.page-contact .ct-tabs .wh-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
}

.page-contact .ct-tabs .wh-tabs__tab {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 11px 20px;
  background-color: transparent;
  border: 1px solid var(--wh-hairline);
  border-radius: var(--wh-radius-sm);
  color: var(--wh-fg);
  font-family: var(--wh-font-title);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease;
}

.page-contact .ct-tabs .wh-tabs__tab:hover {
  border-color: var(--wh-signal-soft);
}

.page-contact .ct-tabs .wh-tabs__tab:focus-visible {
  outline: 2px solid var(--wh-signal);
  outline-offset: 2px;
}

.page-contact .ct-tabs .wh-tabs__tab[aria-selected="true"] {
  border-color: var(--wh-signal);
  background-color: var(--wh-signal);
  color: var(--wh-ink);
}

.page-contact .ct-tabs .wh-tabs__tab[aria-selected="true"]::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-right: 9px;
  border-radius: 50%;
  background-color: var(--wh-turf);
}

.page-contact .ct-tabs__panels {
  padding-top: 6px;
  border-top: 1px solid var(--wh-hairline);
}

.page-contact .ct-panel:focus-visible {
  outline: 2px solid var(--wh-signal);
  outline-offset: 4px;
}

.page-contact .ct-panel[hidden] {
  display: none;
}

.page-contact .ct-spec {
  margin: 0;
}

.page-contact .ct-spec__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--wh-hairline);
}

.page-contact .ct-spec__k {
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--wh-muted);
}

.page-contact .ct-spec__v {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

.page-contact .ct-spec__v strong {
  color: var(--wh-signal-soft);
  font-weight: 700;
  overflow-wrap: anywhere;
}

/* ---------- 内容纠错 ---------- */
.page-contact .ct-correct {
  padding-block: clamp(46px, 8vw, 92px);
}

.page-contact .ct-correct__head {
  max-width: 66ch;
}

.page-contact .ct-correct__lead {
  margin-top: 14px;
}

.page-contact .ct-steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  counter-reset: ct-step;
}

.page-contact .ct-step {
  position: relative;
  padding: 22px 0 22px 56px;
  border-top: 1px solid var(--wh-line);
}

.page-contact .ct-step:last-child {
  border-bottom: 1px solid var(--wh-line);
}

.page-contact .ct-step__no {
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--wh-font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--wh-signal);
}

.page-contact .ct-step__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--wh-fg);
}

.page-contact .ct-step__text {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

.page-contact .ct-correct__note {
  margin-top: 24px;
}

/* ---------- 合作与转载 ---------- */
.page-contact .ct-coop {
  padding-block: clamp(46px, 8vw, 92px);
}

.page-contact .ct-coop__head {
  max-width: 66ch;
}

.page-contact .ct-coop__lead {
  margin-top: 14px;
  color: var(--wh-fg-dim);
}

.page-contact .ct-coop__grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.page-contact .ct-coop__card {
  padding: 22px 20px 20px;
  border-left: 3px solid var(--wh-signal);
}

.page-contact .ct-coop__card .wh-card__body {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

.page-contact .ct-coop__after {
  margin: 16px 0 0;
  font-size: 14px;
}

/* ---------- 底部信息条 ---------- */
.page-contact .ct-legal {
  padding-block: 28px;
  background-color: var(--wh-night-2);
  border-top: 1px solid var(--wh-hairline);
  color: var(--wh-fg);
}

.page-contact .ct-legal__inner {
  display: grid;
  gap: 18px 34px;
}

.page-contact .ct-legal__k {
  display: block;
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--wh-muted);
}

.page-contact .ct-legal__v {
  display: block;
  margin-top: 7px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--wh-fg-dim);
  overflow-wrap: anywhere;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-spec__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

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

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

@media (min-width: 960px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-contact .ct-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 48px;
  }

  .page-contact .ct-step:nth-child(2) {
    border-top: 1px solid var(--wh-line);
  }

  .page-contact .ct-step:last-child {
    border-bottom: 1px solid var(--wh-line);
  }

  .page-contact .ct-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-legal__inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 大屏 ---------- */
@media (min-width: 1200px) {
  .page-contact .ct-hero__title {
    max-width: 15ch;
  }

  .page-contact .ct-channel__value--mail {
    font-size: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-tabs .wh-tabs__tab {
    transition: none;
  }
}