.page-contact {
  --contact-ink: rgba(232, 237, 245, 0.82);
  --contact-ink-dim: rgba(232, 237, 245, 0.62);
  --contact-ease: cubic-bezier(0.22, 0.7, 0.3, 1);
  --contact-stack: clamp(16px, 3vw, 26px);
}

.page-contact .breadcrumbs {
  margin-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 30px;
  padding: clamp(18px, 3.4vw, 32px) 0 clamp(48px, 7vw, 86px);
  border-bottom: 1px solid var(--line);
}

.page-contact .kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(27px, 5.4vw, 44px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--paper);
  max-width: 16em;
}

.page-contact .lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--contact-ink);
}

.page-contact .chip-row {
  margin-top: 22px;
}

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

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

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

.page-contact .media-caption {
  color: var(--slate);
}

.page-contact .contact-facts {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 3px solid var(--gold);
}

.page-contact .contact-fact {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.page-contact .contact-fact dt {
  color: var(--slate);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-contact .contact-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  word-break: break-all;
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding: clamp(48px, 7vw, 84px) 0;
}

.page-contact .section-head {
  max-width: 40em;
  margin-bottom: var(--contact-stack);
}

.page-contact .section-num {
  margin: 0 0 6px;
}

.page-contact .section-kicker {
  margin: 0 0 10px;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.3;
  letter-spacing: 0.015em;
  color: var(--paper);
}

.page-contact .section-lede {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--contact-ink);
}

/* ---------- 01 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  padding: 24px 20px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
  transition: transform 0.24s var(--contact-ease), border-color 0.24s var(--contact-ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--band);
  transform: scaleY(0.26);
  transform-origin: top center;
  transition: transform 0.3s var(--contact-ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(245, 196, 81, 0.42);
}

.page-contact .channel-card:hover::before,
.page-contact .channel-card:focus-within::before {
  transform: scaleY(1);
}

.page-contact .channel-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .channel-tag {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 11px;
  line-height: 1;
  flex: none;
}

.page-contact .channel-top .card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .channel-lead {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--contact-ink);
}

.page-contact .channel-scenes {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .channel-scenes li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--contact-ink-dim);
}

.page-contact .channel-scenes li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  opacity: 0.7;
}

.page-contact .channel-foot {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--slate);
  word-break: break-all;
}

.page-contact .channel-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: var(--archive);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--contact-ink);
}

.page-contact .channel-note .mono {
  color: var(--cyan);
}

/* ---------- 02 准备清单 ---------- */
.page-contact .prep-grid {
  display: grid;
  gap: var(--contact-stack);
}

.page-contact .prep-intro {
  max-width: 36em;
}

.page-contact .prep-tip {
  margin: 18px 0 0;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--slate);
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .prep-box {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--void);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: border-color 0.18s var(--contact-ease);
}

.page-contact .prep-box::before {
  content: "";
  width: 12px;
  height: 12px;
  background: var(--gold);
  clip-path: polygon(14% 46%, 0 62%, 40% 100%, 100% 20%, 84% 6%, 38% 68%);
  transform: scale(0);
  transition: transform 0.16s var(--contact-ease);
}

.page-contact .prep-box:checked {
  border-color: var(--gold);
}

.page-contact .prep-box:checked::before {
  transform: scale(1);
}

.page-contact .prep-box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-item label {
  display: block;
  cursor: pointer;
}

.page-contact .prep-title {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-contact .prep-note {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--contact-ink-dim);
}

.page-contact .prep-box:checked + label .prep-title {
  color: var(--gold);
}

/* ---------- 03 回复时间 ---------- */
.page-contact .section--reply {
  background: var(--archive);
}

.page-contact .reply-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .reply-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--void);
}

.page-contact .reply-hours {
  margin: 0 0 10px;
  font-size: 20px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-contact .reply-card--cyan .reply-hours {
  color: var(--cyan);
}

.page-contact .reply-card--gold .reply-hours {
  color: var(--gold);
}

.page-contact .reply-card .card-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .reply-card p:last-child {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--contact-ink-dim);
}

/* ---------- 04 地址 ---------- */
.page-contact .place-grid {
  display: grid;
  gap: var(--contact-stack);
  align-items: center;
}

.page-contact .place-address {
  display: grid;
  gap: 4px;
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--gold);
  background: var(--card);
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .place-meta {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .place-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--archive), var(--void));
}

.page-contact .place-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.86);
}

.page-contact .place-figure .media-caption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
}

/* ---------- 05 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .partner-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.page-contact .partner-card .card-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 16.5px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--contact-ink-dim);
}

.page-contact .partner-tag {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* ---------- 收束 ---------- */
.page-contact .section--closing {
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact .closing-band {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(245, 196, 81, 0.1), transparent 58%),
    radial-gradient(120% 140% at 100% 100%, rgba(47, 224, 208, 0.1), transparent 60%),
    var(--archive);
}

.page-contact .closing-copy p {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--contact-ink);
}

.page-contact .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .closing-fine {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .closing-fine a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.45);
}

.page-contact .closing-fine a:hover {
  color: var(--gold);
  border-bottom-color: rgba(245, 196, 81, 0.6);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .prep-item {
    padding: 18px 0;
  }

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

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 5vw, 60px);
    align-items: end;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 46px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 20px;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-contact .prep-intro {
    position: sticky;
    top: calc(var(--header-h-compact) + 24px);
  }

  .page-contact .reply-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .reply-card--gold {
    margin-top: 0;
  }

  .page-contact .place-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: clamp(32px, 5vw, 56px);
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .closing-band {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
    gap: 26px;
  }

  .page-contact .closing-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero {
    padding-bottom: 92px;
  }
}

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

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