.page-contact {
  --ct-panel: var(--ink-800);
  --ct-cell: var(--ink-700);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-intro {
  padding-top: 32px;
  max-width: 900px;
}

.page-contact .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

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

.page-contact .breadcrumbs span[aria-current="page"] {
  color: var(--gold-hi);
}

.page-contact h1 {
  margin: 14px 0 0;
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 5.2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--text);
  max-width: 20ch;
}

.page-contact .ct-lede {
  margin: 20px 0 0;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.9;
  color: var(--muted);
  max-width: 60ch;
}

.page-contact .ct-keyline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-keyline li {
  background: var(--ink-900);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .ct-keyline span {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-keyline strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
}

/* ---------- 分屏 ---------- */
.page-contact .ct-split {
  margin-top: 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-split__media {
  margin: 0;
  background: var(--ink-900);
  overflow: hidden;
}

.page-contact .ct-split__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  filter: saturate(0.82) contrast(1.05);
}

.page-contact .ct-split__media .figure__caption {
  padding: 12px 18px 16px;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.page-contact .ct-split__side {
  background: var(--ct-panel);
  padding: 28px 22px 30px;
}

.page-contact .ct-hours {
  margin: 14px 0 0;
  font-size: clamp(1.1rem, 3.4vw, 1.6rem);
  letter-spacing: 0.06em;
  color: var(--gold-hi);
  line-height: 1.3;
}

.page-contact .ct-hours__tz {
  margin: 8px 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hours__note {
  margin: 16px 0 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-mini {
  margin: 24px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-contact .ct-mini div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .ct-mini dt {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .ct-mini dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .ct-channels {
  margin-top: 64px;
}

.page-contact .ct-channels__head .section-head__index {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-contact .ct-channels__head h2,
.page-contact .ct-mailpanel h2,
.page-contact .ct-record h2,
.page-contact .ct-compare h2,
.page-contact .ct-material h2 {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  max-width: 30ch;
}

.page-contact .ct-channels__lead,
.page-contact .ct-compare__lead,
.page-contact .ct-material__lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-channel-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-channel.card {
  background: var(--ct-panel);
  border: 0;
  border-radius: 0;
  padding: 26px 22px 28px;
  box-shadow: none;
}

.page-contact .ct-channel .card__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .ct-channel__no {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-contact .ct-channel .card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.page-contact .ct-contact-value {
  display: block;
  margin: 18px 0 0;
  font-size: clamp(1rem, 2.6vw, 1.35rem);
  line-height: 1.45;
  color: var(--gold-hi);
  overflow-wrap: anywhere;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-channel__fit {
  margin: 16px 0 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-channel__tags {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-channel__tags .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 9px;
}

/* ---------- 邮箱面板 ---------- */
.page-contact .ct-mailpanel {
  margin-top: 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-mailpanel__body {
  background: var(--ink-900);
  padding: 28px 22px 32px;
}

.page-contact .ct-mailpanel__text {
  margin: 18px 0 0;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
  max-width: 58ch;
}

.page-contact .ct-mail-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-mail-list li {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-mail-list__k {
  display: inline-block;
  min-width: 6.5em;
  margin-right: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  vertical-align: 1px;
}

.page-contact .ct-mailpanel__aside {
  background: var(--ct-cell);
  padding: 28px 22px 32px;
}

.page-contact .ct-mailpanel__clock {
  margin: 14px 0 0;
  font-size: clamp(1.3rem, 4vw, 1.9rem);
  letter-spacing: 0.08em;
  color: var(--cyan);
  line-height: 1.2;
}

.page-contact .ct-mailpanel__aside-note {
  margin: 16px 0 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-mailpanel__aside-note a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 1px;
}

.page-contact .ct-mailpanel__aside-note a:hover,
.page-contact .ct-mailpanel__aside-note a:focus-visible {
  color: var(--cyan);
}

/* ---------- 备案信息带 ---------- */
.page-contact .ct-record {
  position: relative;
  margin-top: 64px;
  background: var(--ink-800);
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  overflow: hidden;
}

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

.page-contact .ct-record__texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  display: block;
  max-width: 100%;
}

.page-contact .ct-record__inner {
  position: relative;
  padding-top: 40px;
  padding-bottom: 44px;
}

.page-contact .ct-record__grid {
  margin: 28px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-record__cell {
  background: rgba(7, 26, 23, 0.72);
  padding: 18px 18px 20px;
}

.page-contact .ct-record__cell dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-record__cell dd {
  margin: 10px 0 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .ct-record__strong {
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  letter-spacing: 0.04em;
  color: var(--gold-hi);
}

.page-contact .ct-record__note {
  margin: 22px 0 0;
  max-width: 66ch;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 对照双栏 ---------- */
.page-contact .ct-compare {
  margin-top: 64px;
}

.page-contact .ct-compare__grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-compare__col {
  padding: 26px 22px 30px;
  background: var(--ink-900);
}

.page-contact .ct-compare__col--in {
  border-left: 2px solid var(--cyan);
}

.page-contact .ct-compare__col--out {
  background: var(--ct-panel);
  border-left: 2px solid var(--coral);
}

.page-contact .ct-compare__title {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 9px;
}

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

.page-contact .ct-compare__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--line);
}

.page-contact .ct-compare__col--in .ct-compare__list li::before {
  background: var(--cyan);
}

.page-contact .ct-compare__col--out .ct-compare__list li::before {
  background: var(--coral);
}

.page-contact .ct-compare__list a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .ct-compare__col--out .dot {
  flex: none;
}

/* ---------- 材料清单 ---------- */
.page-contact .ct-material {
  margin-top: 64px;
}

.page-contact .ct-material__steps {
  list-style: none;
  counter-reset: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-material__steps li {
  background: var(--ink-900);
  padding: 22px 20px 24px;
}

.page-contact .ct-material__no {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .ct-material__steps h3 {
  margin: 10px 0 0;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.page-contact .ct-material__steps p {
  margin: 8px 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-material__foot {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-contact .ct-material__foot p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-material__foot a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .ct-material__cta.btn {
  align-self: flex-start;
  text-decoration: none;
  border-bottom: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-keyline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

  .page-contact .ct-material__foot {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-intro {
    padding-top: 52px;
  }

  .page-contact .ct-split {
    grid-template-columns: 58fr 42fr;
    margin-top: 54px;
  }

  .page-contact .ct-split__side {
    padding: 40px 36px 44px;
  }

  .page-contact .ct-mailpanel {
    grid-template-columns: 62fr 38fr;
  }

  .page-contact .ct-mailpanel__body {
    padding: 38px 40px 44px;
  }

  .page-contact .ct-mailpanel__aside {
    padding: 38px 32px 44px;
  }

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

  .page-contact .ct-compare__col {
    padding: 32px 30px 36px;
  }

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

  .page-contact .ct-material__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-contact .ct-channel.card {
    padding: 32px 32px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
    animation: none !important;
  }
}