.page-contact {
  --pc-glow: rgba(62, 230, 196, .30);
  --pc-glow-gold: rgba(245, 197, 66, .26);
  display: block;
  overflow-x: clip;
  background:
    radial-gradient(880px 520px at 80% -10%, rgba(75, 63, 158, .58), transparent 66%),
    radial-gradient(620px 420px at 6% 12%, rgba(62, 230, 196, .12), transparent 70%),
    linear-gradient(180deg, var(--void) 0%, var(--nebula) 62%, var(--void) 100%);
  color: var(--starlight);
}

.page-contact .breadcrumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(1.25rem, 3.5vw, 2.25rem) var(--block);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.page-contact .contact-hero__copy h1 {
  margin: .6rem 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: .012em;
  color: var(--starlight);
}

.page-contact .contact-hero__copy .lede {
  margin-top: 1.1rem;
  max-width: 42em;
  color: var(--mist);
}

.page-contact .contact-hero__quick {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
  border-top: 1px dashed var(--line-dark);
  padding-top: 1.2rem;
}

.page-contact .contact-hero__quick li {
  display: grid;
  grid-template-columns: 6.2rem minmax(0, 1fr);
  align-items: baseline;
  gap: .9rem;
}

.page-contact .contact-hero__k {
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--dust);
}

.page-contact .contact-hero__quick .mono {
  font-family: var(--font-mono);
  font-size: clamp(.9rem, 2.6vw, 1.02rem);
  color: var(--mint);
  overflow-wrap: anywhere;
}

.page-contact .contact-hero__media {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  box-shadow: 0 26px 60px rgba(4, 4, 16, .6), 0 0 0 1px rgba(62, 230, 196, .10) inset;
}

/* ---------- 渠道与侧栏 ---------- */
.page-contact .contact-channels {
  padding-block: 0 var(--block);
}

.page-contact .contact-channels__grid {
  align-items: start;
  row-gap: clamp(2rem, 5vw, 3rem);
}

.page-contact .contact-channels__main .section-head h2,
.page-contact .contact-prep .section-head h2 {
  margin: .5rem 0 .7rem;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.2vw, 2.4rem);
  line-height: 1.2;
  color: var(--starlight);
}

.page-contact .contact-prep .section-head h2 {
  color: var(--ink);
}

.page-contact .channel-list {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .channel-card {
  position: relative;
  background: var(--cream);
  color: var(--ink);
  border: 1px solid rgba(42, 33, 24, .22);
  border-radius: var(--radius);
  padding: var(--pad-card);
  box-shadow: 7px 7px 0 rgba(9, 9, 26, .5);
  transition: box-shadow .45s var(--ease), transform .45s var(--ease), border-color .45s var(--ease);
}

.page-contact .channel-card:nth-child(2) {
  box-shadow: 7px 7px 0 rgba(9, 9, 26, .5), 0 0 0 1px rgba(245, 197, 66, .35);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(62, 230, 196, .55);
  box-shadow: 9px 11px 0 rgba(9, 9, 26, .55), 0 0 34px var(--pc-glow);
}

.page-contact .channel-card__head {
  display: flex;
  align-items: center;
  gap: .8rem;
}

.page-contact .channel-card__icon {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--galactic);
  color: var(--galactic);
  background: rgba(75, 63, 158, .08);
}

.page-contact .channel-card__icon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .03em;
  color: var(--ink);
}

.page-contact .channel-card__value {
  margin: .9rem 0 .6rem;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2.8vw, 1.16rem);
  line-height: 1.55;
  color: var(--galactic);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: rgba(42, 33, 24, .86);
}

.page-contact .contact-channels__media {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .contact-channels__media .media-frame__cap {
  background: rgba(14, 14, 36, .9);
  color: var(--dust);
  font-family: var(--font-mono);
  font-size: .78rem;
}

/* 侧栏面板 */
.page-contact .contact-aside {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
}

.page-contact .panel {
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  padding: var(--pad-card);
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(75, 63, 158, .5), transparent 70%),
    linear-gradient(165deg, rgba(27, 27, 58, .95), rgba(14, 14, 36, .96));
}

.page-contact .panel--priority {
  border-color: rgba(245, 197, 66, .38);
  box-shadow: 0 0 0 1px rgba(245, 197, 66, .08) inset, 0 18px 44px rgba(4, 4, 16, .5);
}

.page-contact .panel__title {
  margin: .5rem 0 .7rem;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  line-height: 1.28;
  color: var(--starlight);
}

.page-contact .panel__foot {
  margin: 1rem 0 0;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .panel__foot.muted {
  color: var(--dust);
}

.page-contact .panel__foot a,
.page-contact .contact-prep__hint a,
.page-contact .contact-links a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: .22em;
  text-decoration-thickness: 1px;
}

.page-contact .panel__foot a:hover,
.page-contact .contact-prep__hint a:hover,
.page-contact .contact-links a:hover {
  color: var(--gold);
}

.page-contact .timeline {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .timeline__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .2rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed var(--line-dark);
}

.page-contact .timeline__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .timeline__time {
  font-family: var(--font-mono);
  font-size: .9rem;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-contact .timeline__text {
  font-size: .93rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .priority-badge {
  display: inline-block;
  margin: 0;
  padding: .28rem .7rem;
  border: 1px solid var(--gold);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--gold);
  background: rgba(245, 197, 66, .08);
}

.page-contact .priority-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .priority-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--starlight);
}

.page-contact .priority-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--pc-glow);
}

/* ---------- 来信准备与备案 ---------- */
.page-contact .contact-prep {
  color: var(--ink);
}

.page-contact .contact-prep__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-contact .contact-prep__hint {
  margin: 1.2rem 0 0;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(42, 33, 24, .84);
}

.page-contact .contact-prep__hint a {
  color: var(--galactic);
}

.page-contact .checklist {
  list-style: none;
  margin: clamp(1.3rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 2.1rem;
  font-size: .96rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .16em;
  width: 1.15rem;
  height: 1.15rem;
  border: 1.6px solid rgba(42, 33, 24, .7);
  border-radius: 3px;
  background: rgba(75, 63, 158, .08);
}

.page-contact .checklist li::after {
  content: "";
  position: absolute;
  left: .3rem;
  top: .42em;
  width: .55rem;
  height: .28rem;
  border-left: 1.8px solid var(--galactic);
  border-bottom: 1.8px solid var(--galactic);
  transform: rotate(-45deg);
}

.page-contact .record-tag {
  display: inline-block;
  margin: 1.2rem 0 .2rem;
  padding: .8rem 1.1rem;
  border: 1.6px dashed var(--vermilion);
  border-radius: 4px;
  background: rgba(196, 71, 43, .07);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(.92rem, 2.6vw, 1.06rem);
  letter-spacing: .06em;
  transform: rotate(-.7deg);
}

.page-contact .contact-prep__sub {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 .4rem;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .contact-prep__col > .contact-prep__sub:first-child {
  margin-top: 0;
}

.page-contact .contact-links {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .contact-links li {
  padding: .95rem 1.1rem;
  border: 1px solid var(--line-paper);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .38);
}

.page-contact .contact-links a {
  display: inline-block;
  margin-right: .5rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--galactic);
}

.page-contact .contact-links span {
  display: block;
  margin-top: .35rem;
  font-size: .92rem;
  line-height: 1.7;
  color: rgba(42, 33, 24, .84);
}

.page-contact .channel-card__value,
.page-contact .contact-hero__quick .mono,
.page-contact .record-tag {
  font-variant-numeric: tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .timeline__row {
    grid-template-columns: 6.4rem minmax(0, 1fr);
    gap: .9rem;
    align-items: baseline;
  }

  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.2rem, 3vw, 2rem);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(1.5rem, 3.5vw, 2.75rem);
  }

  .page-contact .contact-aside {
    position: sticky;
    top: clamp(1.5rem, 4vw, 3rem);
  }

  .page-contact .contact-prep__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    column-gap: clamp(2rem, 5vw, 3.5rem);
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero__quick li {
    grid-template-columns: 7rem minmax(0, 1fr);
  }
}

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

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

  .page-contact .contact-aside {
    position: static;
  }
}
</main>