.page-contact {
  --ct-shell: 1180px;
  --ct-line-soft: rgba(31, 74, 61, 0.72);
  position: relative;
  overflow-x: clip;
  background: var(--ink-bg);
  color: var(--text);
  padding-bottom: 32px;
}

.page-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 880px;
  background-image:
    linear-gradient(to right, rgba(31, 74, 61, 0.3) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 74, 61, 0.3) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0) 72%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0) 72%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--ct-shell);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: 34px 0 52px;
}

.page-contact .contact-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-contact .contact-eyebrow-num {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-contact h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 7vw, 52px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .lede {
  margin: 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-quick li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 14px;
  border-left: 2px solid var(--cyan-dim);
  background: linear-gradient(90deg, rgba(16, 42, 35, 0.92), rgba(16, 42, 35, 0));
  font-family: var(--font-mono);
  font-size: 13.5px;
  word-break: break-all;
}

.page-contact .quick-key {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .quick-val {
  color: var(--gold-soft);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .contact-hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  overflow: hidden;
}

.page-contact .contact-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(56, 225, 200, 0.18) 0%, rgba(56, 225, 200, 0) 46%, rgba(233, 185, 73, 0.12) 100%);
  pointer-events: none;
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 章节骨架 ---------- */
.page-contact .contact-section {
  position: relative;
  padding: 40px 0;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  margin-bottom: 26px;
}

.page-contact .section-index {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  padding-top: 2px;
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(20px, 4.4vw, 28px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .section-sub {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .section-note {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
  opacity: 0.72;
}

/* ---------- 01 渠道卡 ---------- */
.page-contact .channel-rack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px 20px 20px;
  background: var(--ink-card);
  border: 1px solid var(--line);
  transition: transform 0.28s ease, border-color 0.28s ease, background 0.28s ease, box-shadow 0.28s ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: var(--ink-lift);
  box-shadow: 0 20px 38px -24px rgba(0, 0, 0, 0.92);
}

.page-contact .tag {
  display: inline-block;
  align-self: flex-start;
  margin-bottom: 14px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
  border: 1px solid rgba(233, 185, 73, 0.45);
  background: rgba(233, 185, 73, 0.08);
}

.page-contact .channel-name {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .channel-value {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: clamp(14.5px, 2.1vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-soft);
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-value--addr {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .channel-meta {
  margin: auto 0 0;
  padding-top: 14px;
  display: grid;
  gap: 12px;
  border-top: 1px dashed var(--ct-line-soft);
}

.page-contact .channel-meta > div {
  display: grid;
  gap: 4px;
}

.page-contact .channel-meta dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--cyan-dim);
}

.page-contact .channel-meta dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 02 准备清单 ---------- */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-contact .prep-lede {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-contact .prep-check {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 12px;
  border-bottom: 1px solid var(--ct-line-soft);
  cursor: pointer;
  transition: background 0.22s ease;
}

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

.page-contact .prep-check:hover {
  background: rgba(22, 56, 46, 0.6);
}

.page-contact .prep-check input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-contact .prep-check input[type="checkbox"]::after {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: scale(0);
  transition: transform 0.18s ease;
}

.page-contact .prep-check input[type="checkbox"]:checked {
  border-color: var(--cyan);
  background: rgba(56, 225, 200, 0.12);
}

.page-contact .prep-check input[type="checkbox"]:checked::after {
  transform: scale(1);
}

.page-contact .prep-check input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}

.page-contact .prep-text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .prep-text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  color: var(--text);
  font-weight: 700;
}

.page-contact .prep-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-card);
  overflow: hidden;
}

.page-contact .prep-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
}

.page-contact .prep-media figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ---------- 03 时效 ---------- */
.page-contact .sla-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .sla-item {
  position: relative;
  padding: 26px 22px 24px 26px;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(16, 42, 35, 1) 0%, rgba(11, 31, 26, 1) 100%);
}

.page-contact .sla-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
}

.page-contact .sla-item--gold::before {
  background: var(--gold);
}

.page-contact .sla-num {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 14px;
}

.page-contact .sla-figure {
  font-family: var(--font-mono);
  font-size: clamp(42px, 9vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--gold);
}

.page-contact .sla-unit {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .sla-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .sla-foot {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .sla-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 200, 0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact .sla-foot a:hover,
.page-contact .sla-foot a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* ---------- 04 咨询分类 ---------- */
.page-contact .topics-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .topic-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 20px 18px 18px;
  background: var(--ink-card);
  border: 1px solid var(--line);
  transition: border-color 0.26s ease, background 0.26s ease, transform 0.26s ease;
}

.page-contact .topic-card:hover,
.page-contact .topic-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--cyan-dim);
  background: var(--ink-lift);
}

.page-contact .topic-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .topic-name {
  margin: 10px 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .topic-body {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .topic-link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(233, 185, 73, 0.42);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .topic-link:hover,
.page-contact .topic-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 05 地区与备案 ---------- */
.page-contact .coverage-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(56, 225, 200, 0.07) 0%, rgba(56, 225, 200, 0) 52%),
    var(--ink-card);
}

.page-contact .coverage-num {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 12px;
}

.page-contact .coverage-figure {
  font-family: var(--font-mono);
  font-size: clamp(44px, 10vw, 68px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--cya n, #38E1C8);
  color: var(--cyan);
}

.page-contact .coverage-unit {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .coverage-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .coverage-meta {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .coverage-meta > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ct-line-soft);
}

.page-contact .coverage-meta dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--cyan-dim);
}

.page-contact .coverage-meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

/* ---------- 尾部跳转 ---------- */
.page-contact .contact-tail {
  padding: 44px 0 12px;
  border-top: 1px solid var(--ct-line-soft);
}

.page-contact .tail-card {
  position: relative;
  padding: 28px 22px 26px;
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(22, 56, 46, 0.95) 0%, rgba(11, 31, 26, 1) 78%);
  overflow: hidden;
}

.page-contact .tail-card::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.22) 0%, rgba(139, 92, 246, 0) 70%);
  pointer-events: none;
}

.page-contact .tail-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .tail-title {
  margin: 0 0 12px;
  font-size: clamp(19px, 4.2vw, 26px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-contact .tail-body {
  margin: 0 0 22px;
  max-width: 48em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .tail-btn {
  display: inline-block;
  padding: 11px 22px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--deep);
  background: var(--cyan);
  border: 1px solid var(--cyan);
  transition: background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease;
}

.page-contact .tail-btn:hover,
.page-contact .tail-btn:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--deep);
  box-shadow: 0 14px 30px -18px rgba(233, 185, 73, 0.85);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-shell {
    padding: 0 28px;
  }

  .page-contact .topics-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .topic-card {
    grid-column: span 3;
  }

  .page-contact .topic-card:nth-child(1) {
    grid-column: span 4;
  }

  .page-contact .topic-card:nth-child(2) {
    grid-column: span 2;
  }

  .page-contact .topic-card:nth-child(3),
  .page-contact .topic-card:nth-child(4),
  .page-contact .topic-card:nth-child(5) {
    grid-column: span 2;
  }

  .page-contact .coverage-meta > div {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
    padding: 58px 0 76px;
  }

  .page-contact .section-index {
    font-size: 46px;
    padding-top: 0;
  }

  .page-contact .section-head {
    gap: 20px;
    margin-bottom: 32px;
  }

  .page-contact .contact-section {
    padding: 52px 0;
  }

  .page-contact .channel-rack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
    padding-bottom: 60px;
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 56px;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .sla-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .coverage-panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
    padding: 32px 30px;
    align-items: start;
  }

  .page-contact .coverage-meta {
    border-top: none;
  }

  .page-contact .coverage-meta > div:first-child {
    border-top: 1px solid var(--ct-line-soft);
  }

  .page-contact .tail-card {
    padding: 40px 38px 36px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-shell {
    padding: 0 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .topic-card,
  .page-contact .prep-check,
  .page-contact .tail-btn {
    transition: none;
  }
}
<<<END>>>

.page-contact {
  --cya: currentColor;
}