.page-contact {
  padding-bottom: 104px;
  color: var(--white);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: calc(var(--header-h) + 40px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: 22px;
}

.page-contact .contact-hero__lead h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-contact .contact-hero__sub {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15.5px, 2.2vw, 18px);
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-hero__meta {
  display: grid;
  gap: 16px;
  align-self: end;
  padding: 4px 0 6px 20px;
  border-left: 3px solid var(--cyan);
}

.page-contact .contact-hero__meta-item {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-hero__meta-key {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-hero__media {
  margin: 44px 0 0;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ---------- 渠道卡片 ---------- */

.page-contact .contact-channels {
  padding-top: 96px;
}

.page-contact .contact-channels__list {
  display: grid;
  gap: 20px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  padding: 30px 26px 26px;
  background: var(--ink-800);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-md);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background-color 0.4s var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  opacity: 0.55;
  transition: opacity 0.4s var(--ease);
}

.page-contact .contact-channel:nth-child(1)::before {
  background: linear-gradient(90deg, var(--cyan), transparent 72%);
}

.page-contact .contact-channel:nth-child(2)::before {
  background: linear-gradient(90deg, var(--orange), transparent 72%);
}

.page-contact .contact-channel:nth-child(3)::before {
  background: linear-gradient(90deg, var(--indigo), transparent 72%);
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus-within {
  background: #16273e;
  border-color: rgba(43, 231, 210, 0.45);
  transform: translateY(-4px);
}

.page-contact .contact-channel:hover::before,
.page-contact .contact-channel:focus-within::before {
  opacity: 1;
}

.page-contact .contact-channel__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  color: var(--cyan);
  background: rgba(43, 231, 210, 0.1);
}

.page-contact .contact-channel:nth-child(2) .contact-channel__icon {
  color: var(--orange);
  background: rgba(255, 122, 47, 0.12);
}

.page-contact .contact-channel:nth-child(3) .contact-channel__icon {
  color: var(--indigo);
  background: rgba(59, 91, 255, 0.16);
}

.page-contact .contact-channel__name {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .contact-channel__value {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.4vw, 17px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--white);
  background: var(--ink-900);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-sm);
  word-break: break-word;
}

.page-contact .contact-channel__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-channel__fit {
  margin: auto 0 0;
  padding-top: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cyan);
  border-top: 1px solid var(--graphite);
}

.page-contact .contact-channel:nth-child(2) .contact-channel__fit {
  color: var(--orange);
}

.page-contact .contact-channel:nth-child(3) .contact-channel__fit {
  color: var(--mist);
}

.page-contact .contact-channels__links {
  margin: 34px 0 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--mist);
}

.page-contact .contact-channels__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 231, 210, 0.35);
}

.page-contact .contact-channels__links a:hover,
.page-contact .contact-channels__links a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 回复安排 ---------- */

.page-contact .contact-window {
  padding-top: 96px;
}

.page-contact .contact-window__panel {
  padding: 34px 22px;
  background: var(--ink-800);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
}

.page-contact .contact-window__grid {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

.page-contact .contact-window__label {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .contact-window__list {
  display: grid;
  gap: 13px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-window__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-window__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .contact-window__col:nth-child(2) .contact-window__list li::before {
  background: var(--orange);
}

.page-contact .contact-window__foot {
  margin: 34px 0 0;
  padding-top: 24px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  border-top: 1px solid var(--graphite);
}

/* ---------- 地址 ---------- */

.page-contact .contact-visit {
  padding-top: 96px;
}

.page-contact .contact-visit__grid {
  display: grid;
  gap: 36px;
}

.page-contact .contact-visit__text h2 {
  margin-top: 14px;
}

.page-contact .contact-visit__addr {
  margin: 24px 0 0;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.6;
  color: var(--white);
  background: rgba(43, 231, 210, 0.07);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  word-break: break-word;
}

.page-contact .contact-visit__text p {
  margin: 18px 0 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .contact-visit__note {
  font-size: 13.5px;
  opacity: 0.82;
}

.page-contact .contact-visit__media {
  margin: 0;
}

.page-contact .contact-visit__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* ---------- 备案信息 ---------- */

.page-contact .contact-register {
  padding-top: 96px;
}

.page-contact .contact-register__panel {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-contact .contact-register__main h2 {
  margin-top: 14px;
}

.page-contact .contact-register__main p {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .contact-register__card {
  padding: 28px 26px;
  color: var(--cream-ink);
  background: var(--cream);
  border-radius: var(--radius-md);
}

.page-contact .contact-register__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cream-ink);
  opacity: 0.6;
}

.page-contact .contact-register__code {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 3.6vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--cream-ink);
  word-break: break-all;
}

.page-contact .contact-register__hint {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--cream-ink);
  opacity: 0.7;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-window__panel {
    padding: 48px 44px;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-window__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 44px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-channels__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: calc(var(--header-h) + 64px);
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }

  .page-contact .contact-register__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero,
  .page-contact .contact-channels,
  .page-contact .contact-window,
  .page-contact .contact-visit,
  .page-contact .contact-register {
    padding-left: calc(var(--rail-w) + 12px);
  }
}

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

  .page-contact .contact-channel:hover,
  .page-contact .contact-channel:focus-within {
    transform: none;
  }

  .page-contact .contact-channel::before {
    transition: none;
  }
}