.page-contact {
  --contact-gap: clamp(18px, 3vw, 28px);
  padding-bottom: clamp(48px, 9vw, 96px);
}

.page-contact .crumbs {
  padding-top: 18px;
  color: var(--mute);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  margin-top: 10px;
  padding: clamp(26px, 6vw, 56px) 0 clamp(30px, 6vw, 54px);
  background:
    radial-gradient(110% 85% at 88% 0%, rgba(164, 107, 255, .38), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(111, 211, 255, .16), transparent 64%),
    var(--night);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--violet), var(--gold) 58%, var(--ice));
}

.page-contact .contact-hero__kicker {
  margin: 0;
  color: var(--ice);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 47ch;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.78;
  color: var(--white);
}

.page-contact .contact-hero__status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mute);
}

.page-contact .contact-hero__status li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 页内导航条 */
.page-contact .contact-index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 16px 0 6px;
  -webkit-overflow-scrolling: touch;
}

.page-contact .contact-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  background: var(--night);
  border: var(--edge) solid var(--mid-line);
  color: var(--mute);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color .15s var(--ease), border-color .15s var(--ease), background .15s var(--ease);
}

.page-contact .contact-index__link:hover {
  color: var(--white);
  border-color: var(--gold);
}

.page-contact .contact-index__link[aria-current="true"] {
  background: var(--violet);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 700;
}

/* 章节骨架 */
.page-contact .contact-section {
  padding: clamp(34px, 6vw, 66px) 0;
  scroll-margin-top: 96px;
}

.page-contact .contact-section__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mute);
}

/* 01 渠道卡 */
.page-contact .chan-grid {
  display: grid;
  gap: var(--contact-gap);
  margin-top: 24px;
}

.page-contact .chan-card {
  padding: 20px 20px 22px;
  background: var(--mid);
  border: var(--edge) solid var(--mid-line);
  box-shadow: var(--drop) var(--drop) 0 rgba(7, 16, 34, .92);
  transition: transform .15s var(--ease), border-color .15s var(--ease);
}

.page-contact .chan-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-contact .chan-card__flag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 9px;
  background: var(--ink);
  color: var(--ice);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-contact .chan-card__label {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mute);
}

.page-contact .chan-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(16px, 2.6vw, 19px);
  line-height: 1.5;
  color: var(--gold);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .chan-card__value--plain {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.65;
  color: var(--white);
}

.page-contact .chan-card__use {
  margin: 18px 0 0;
  padding: 13px 14px;
  background: var(--night);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .chan-card__use b {
  color: var(--white);
  font-weight: 600;
}

/* 02 邮件写法 */
.page-contact .mail-layout {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

.page-contact .mail-copy p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--white);
}

.page-contact .mail-points {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .mail-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mute);
}

.page-contact .mail-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 8px;
  height: 8px;
  background: var(--ice);
}

.page-contact .mail-points strong {
  color: var(--white);
  font-weight: 600;
}

.page-contact .mail-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .mail-side__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ice);
}

.page-contact .mailtmpl {
  margin: 0;
  padding: 18px 18px 20px;
  background: var(--ink);
  border: var(--edge) solid var(--violet);
  box-shadow: var(--drop) var(--drop) 0 rgba(164, 107, 255, .3);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--ice);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

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

/* 03 回复时段 */
.page-contact .hours {
  margin-top: 22px;
}

.page-contact .hours__bar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--night);
  border: var(--edge) solid var(--mid-line);
  box-shadow: var(--drop) var(--drop) 0 rgba(7, 16, 34, .85);
}

.page-contact .hours__time {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--gold);
}

.page-contact .hours__track {
  display: block;
  height: 12px;
  background: linear-gradient(90deg, rgba(164, 107, 255, .85), rgba(255, 184, 77, .95));
}

.page-contact .hours__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-contact .hours-notes {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-contact .hours-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

/* 04 咨询类型 */
.page-contact .ask-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-contact .ask {
  padding: 18px 20px 20px;
  background: var(--mid);
  border: var(--edge) solid var(--mid-line);
  box-shadow: var(--drop) var(--drop) 0 rgba(7, 16, 34, .9);
  transition: transform .15s var(--ease), border-color .15s var(--ease);
}

.page-contact .ask:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-contact .ask__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .ask h3 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .ask p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .ask p strong {
  color: var(--ice);
  font-weight: 600;
}

/* 05 服务与备案 */
.page-contact .service-zone {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

.page-contact .service-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--white);
}

.page-contact .service-list {
  display: grid;
  gap: 2px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .service-list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 14px;
  background: var(--mid);
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .service-list li span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--ice);
  align-self: center;
}

.page-contact .service-icp {
  margin: 16px 0 0 !important;
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: .06em;
  color: var(--mute) !important;
}

.page-contact .next-links {
  margin-top: clamp(30px, 5vw, 48px);
  padding: 20px 22px 24px;
  background: var(--night);
  border: var(--edge) solid var(--violet);
  box-shadow: var(--drop) var(--drop) 0 rgba(164, 107, 255, .24);
}

.page-contact .next-links__lead {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .next-links ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .next-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ice);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .15s var(--ease), border-color .15s var(--ease);
}

.page-contact .next-links a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* 响应式推进 */
@media (min-width: 720px) {
  .page-contact .ask-grid {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-contact .hours-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .next-links ul {
    grid-template-columns: 1fr 1fr;
    gap: 6px 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .chan-grid {
    grid-template-columns: 1.15fr .95fr .9fr;
    align-items: start;
    gap: 22px;
  }

  .page-contact .chan-card:nth-child(2) {
    margin-top: 36px;
  }

  .page-contact .chan-card:nth-child(3) {
    margin-top: 72px;
  }

  .page-contact .mail-layout {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: start;
  }

  .page-contact .service-zone {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .chan-card,
  .page-contact .ask,
  .page-contact .contact-index__link,
  .page-contact .next-links a {
    transition: none;
  }

  .page-contact .chan-card:hover,
  .page-contact .ask:hover {
    transform: none;
  }
}