.page-contact {
  --ct-gap: clamp(14px, 2vw, 24px);
  --ct-band: rgba(11, 21, 38, 0.66);
  --ct-shadow: 0 18px 44px rgba(5, 7, 12, 0.6);
  background: var(--sn-black);
  color: var(--sn-mist);
  font-family: var(--sn-font-body);
  overflow-x: clip;
}

.page-contact .ct-section {
  padding: clamp(52px, 7.5vw, 100px) 0;
}

.page-contact .ct-section--alt {
  background: linear-gradient(180deg, rgba(11, 21, 38, 0.62) 0%, rgba(5, 7, 12, 0) 100%);
}

.page-contact .ct-section--tight {
  padding: clamp(36px, 5vw, 64px) 0 clamp(56px, 7vw, 92px);
}

.page-contact .ct-h2 {
  font-family: var(--sn-font-display);
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 10px 0 12px;
  color: var(--sn-mist);
}

.page-contact .ct-lede {
  max-width: 62ch;
  color: var(--sn-text-soft);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--sn-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 5vw, 58px) 0 clamp(44px, 6vw, 78px);
  border-bottom: 1px solid var(--sn-line);
}

.page-contact .ct-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .ct-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.9) contrast(1.06);
}

.page-contact .ct-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 7, 12, 0.5) 0%, rgba(5, 7, 12, 0.84) 58%, var(--sn-black) 100%),
    repeating-linear-gradient(180deg, rgba(232, 237, 245, 0.035) 0 1px, transparent 1px 4px);
}

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

.page-contact .sn-breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-contact .ct-hero__title {
  font-family: var(--sn-font-display);
  font-size: clamp(34px, 7.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  margin: 10px 0 20px;
  max-width: 18ch;
  color: var(--sn-mist);
}

.page-contact .ct-hero__lede {
  max-width: 60ch;
  color: var(--sn-text-soft);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
}

.page-contact .ct-hero__lede .sn-mono {
  color: var(--sn-cyan);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-channel {
  position: relative;
  border: 1px solid var(--sn-steel);
  border-radius: var(--sn-r-lg);
  background: linear-gradient(160deg, rgba(28, 37, 54, 0.78) 0%, rgba(11, 21, 38, 0.55) 100%);
  padding: clamp(22px, 3vw, 30px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(22px, 3vw, 30px);
  width: 56px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--sn-cyan);
}

.page-contact .ct-channel--flame::before {
  background: var(--sn-flame);
}

.page-contact .ct-channel--steel::before {
  background: linear-gradient(90deg, var(--sn-cyan), var(--sn-violet));
}

.page-contact .ct-channel:hover {
  transform: translateY(-4px);
  border-color: var(--sn-cyan-line);
  box-shadow: var(--ct-shadow);
}

.page-contact .ct-channel__label {
  font-family: var(--sn-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sn-cold);
  margin: 6px 0 14px;
}

.page-contact .ct-channel__value {
  font-family: var(--sn-font-mono);
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.45;
  color: var(--sn-cyan);
  margin: 0 0 14px;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--flame {
  color: var(--sn-flame);
}

.page-contact .ct-channel__value--addr {
  font-size: clamp(15px, 1.7vw, 17px);
  color: var(--sn-mist);
  line-height: 1.7;
}

.page-contact .ct-channel__note {
  color: var(--sn-text-soft);
  font-size: 15px;
  line-height: 1.78;
  margin: 0 0 16px;
  max-width: 36ch;
}

/* ---------- Tab ---------- */
.page-contact .ct-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-tabs .sn-tab {
  flex: 0 1 auto;
}

.page-contact .ct-tabs .sn-panel {
  flex: 1 1 100%;
  margin-top: 6px;
  border: 1px solid var(--sn-steel);
  border-radius: var(--sn-r-md);
  background: var(--ct-band);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .ct-panel__title {
  font-family: var(--sn-font-body);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--sn-mist);
}

.page-contact .sn-list li {
  color: var(--sn-text-soft);
  line-height: 1.8;
}

/* ---------- 邮件要点 ---------- */
.page-contact .ct-mail {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-checklist li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--sn-line);
}

.page-contact .ct-checklist li:first-child {
  padding-top: 4px;
}

.page-contact .ct-checklist__idx {
  font-size: 13px;
  color: var(--sn-cyan);
  padding-top: 3px;
}

.page-contact .ct-checklist strong {
  display: block;
  font-size: 17px;
  color: var(--sn-mist);
  margin-bottom: 6px;
}

.page-contact .ct-checklist p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--sn-cold);
}

.page-contact .ct-mail__figure {
  margin: 0;
  border: 1px solid var(--sn-steel);
  border-radius: var(--sn-r-lg);
  overflow: hidden;
  background: var(--sn-midnight);
}

.page-contact .ct-mail__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 560;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

.page-contact .ct-mail__figure .sn-media__caption {
  display: block;
  padding: 14px 18px;
  border-top: 1px solid var(--sn-line);
  font-size: 13px;
  color: var(--sn-cold);
  line-height: 1.7;
}

/* ---------- 电话对比 ---------- */
.page-contact .ct-call {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-call__col {
  border-radius: var(--sn-r-lg);
  border: 1px solid var(--sn-cyan-line);
  background: linear-gradient(150deg, rgba(43, 232, 192, 0.09), rgba(11, 21, 38, 0.6));
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .ct-call__col--muted {
  border-color: var(--sn-line);
  background: linear-gradient(150deg, rgba(28, 37, 54, 0.6), rgba(5, 7, 12, 0.4));
}

.page-contact .ct-call__head {
  font-family: var(--sn-font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--sn-cyan);
  margin: 0 0 16px;
}

.page-contact .ct-call__col--muted .ct-call__head {
  color: var(--sn-cold);
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-scale {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-scale__step {
  position: relative;
  padding: 16px 18px 16px 22px;
  border-left: 2px solid var(--sn-cyan-line);
  border-radius: 0 var(--sn-r-md) var(--sn-r-md) 0;
  background: linear-gradient(90deg, rgba(43, 232, 192, 0.08), rgba(43, 232, 192, 0));
}

.page-contact .ct-scale__step--hot {
  border-left-color: var(--sn-flame-line);
  background: linear-gradient(90deg, rgba(255, 90, 43, 0.1), rgba(255, 90, 43, 0));
}

.page-contact .ct-scale__time {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sn-cold);
  margin-bottom: 8px;
}

.page-contact .ct-scale__step strong {
  display: block;
  font-size: 17px;
  color: var(--sn-mist);
  margin-bottom: 6px;
}

.page-contact .ct-scale__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sn-cold);
}

/* ---------- 合作 ---------- */
.page-contact .ct-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-partner {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--sn-line);
  border-radius: var(--sn-r-md);
  background: rgba(28, 37, 54, 0.38);
  transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
}

.page-contact .ct-partner:hover {
  transform: translateY(-4px);
  border-color: var(--sn-cyan-line);
  background: rgba(43, 232, 192, 0.06);
}

.page-contact .ct-partner__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--sn-black);
  background: linear-gradient(135deg, var(--sn-cyan), var(--sn-gold));
}

.page-contact .ct-partner__title {
  margin: 2px 0 8px;
  font-size: 17px;
  color: var(--sn-mist);
}

.page-contact .ct-partner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sn-cold);
}

.page-contact .ct-partner__note {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 18px 20px;
  border-radius: var(--sn-r-md);
  border-left: 3px solid var(--sn-gold);
  background: rgba(245, 197, 66, 0.07);
  font-size: 15px;
  line-height: 1.8;
  color: var(--sn-text-soft);
}

.page-contact .ct-partner__note .sn-mono {
  color: var(--sn-gold);
  overflow-wrap: anywhere;
}

/* ---------- 地址 ---------- */
.page-contact .ct-address {
  border: 1px solid var(--sn-cyan-line);
  border-radius: var(--sn-r-lg);
  padding: clamp(24px, 4vw, 42px);
  background:
    radial-gradient(120% 140% at 6% 0%, rgba(43, 232, 192, 0.14), transparent 58%),
    var(--sn-midnight);
}

.page-contact .ct-address__line {
  font-size: clamp(18px, 2.6vw, 26px);
  line-height: 1.5;
  color: var(--sn-mist);
  margin: 0 0 14px;
  overflow-wrap: anywhere;
}

.page-contact .ct-address__note {
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sn-text-soft);
}

.page-contact .ct-address__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--sn-line);
}

.page-contact .ct-address__meta dt {
  font-family: var(--sn-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sn-cold);
  margin-bottom: 8px;
}

.page-contact .ct-address__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--sn-mist);
}

/* ---------- 自助入口 ---------- */
.page-contact .ct-portals {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .ct-portal {
  display: block;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--sn-line);
  border-radius: var(--sn-r-md);
  background: rgba(28, 37, 54, 0.34);
  text-decoration: none;
  color: var(--sn-mist);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.page-contact .ct-portal:hover {
  transform: translateY(-4px);
  border-color: var(--sn-cyan-line);
  background: var(--sn-cyan-veil);
}

.page-contact .ct-portal__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sn-cyan);
  margin-bottom: 12px;
}

.page-contact .ct-portal strong {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
}

.page-contact .ct-portal p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sn-cold);
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq {
  display: grid;
  gap: 10px;
}

.page-contact .ct-faq .sn-fold {
  border: 1px solid var(--sn-line);
  border-radius: var(--sn-r-md);
  background: rgba(11, 21, 38, 0.55);
  overflow: hidden;
}

.page-contact .ct-faq .sn-fold__summary {
  cursor: pointer;
  padding: 18px clamp(18px, 2.4vw, 24px);
  font-size: 16px;
  color: var(--sn-mist);
}

.page-contact .ct-faq .sn-fold__body {
  padding: 0 clamp(18px, 2.4vw, 24px) 20px;
  color: var(--sn-text-soft);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .ct-faq .sn-fold__body p {
  margin: 0;
}

/* ---------- 收束带 ---------- */
.page-contact .ct-outro {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  padding: clamp(24px, 3.6vw, 40px);
  border: 1px solid rgba(43, 232, 192, 0.24);
  border-radius: var(--sn-r-lg);
  background: linear-gradient(135deg, #06302a 0%, #05161c 58%, #05070c 100%);
}

.page-contact .ct-outro__title {
  margin: 0 0 10px;
  font-family: var(--sn-font-display);
  font-size: clamp(22px, 3vw, 32px);
  color: var(--sn-mist);
}

.page-contact .ct-outro__text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sn-text-soft);
}

.page-contact .ct-outro__text .sn-mono {
  color: var(--sn-cyan);
  overflow-wrap: anywhere;
}

.page-contact .ct-outro__legal {
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.8;
  color: var(--sn-cold);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-mail {
    grid-template-columns: 1.05fr 0.95fr;
  }

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

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

  .page-contact .ct-portal:nth-child(4),
  .page-contact .ct-portal:nth-child(5) {
    grid-column: span 1;
  }

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

@media (min-width: 900px) {
  .page-contact .ct-channels {
    grid-template-columns: 1.08fr 1fr 1fr;
  }

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

  .page-contact .ct-scale {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }

  .page-contact .ct-scale__step {
    padding: 24px 18px 0 0;
    border-left: 0;
    border-top: 2px solid var(--sn-cyan-line);
    border-radius: 0;
    background: none;
  }

  .page-contact .ct-scale__step--hot {
    border-left: 0;
    border-top-color: var(--sn-flame-line);
  }

  .page-contact .ct-scale__step::before {
    content: "";
    position: absolute;
    top: -7px;
    left: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--sn-cyan);
    box-shadow: 0 0 0 4px rgba(43, 232, 192, 0.15);
  }

  .page-contact .ct-scale__step--hot::before {
    background: var(--sn-flame);
    box-shadow: 0 0 0 4px rgba(255, 90, 43, 0.15);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-portals {
    grid-template-columns: repeat(5, 1fr);
  }
}

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

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