.page-contact {
  background: var(--void);
  color: var(--text-primary);
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.page-contact h1 {
  font-size: clamp(28px, 4.6vw, 50px);
  font-weight: 900;
  line-height: 1.16;
  margin: 14px 0 18px;
  max-width: 22ch;
}

.page-contact h2 {
  font-size: clamp(21px, 2.5vw, 30px);
  font-weight: 800;
  line-height: 1.28;
  margin: 0 0 12px;
}

.page-contact h3 {
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 12px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.6vw, 40px) 0 clamp(44px, 6vw, 76px);
  background:
    radial-gradient(120% 92% at 6% -10%, rgba(122, 92, 255, 0.30), transparent 62%),
    radial-gradient(96% 78% at 94% 8%, rgba(47, 227, 208, 0.16), transparent 64%),
    linear-gradient(180deg, var(--space-ink), var(--void) 82%);
  border-bottom: var(--line);
}

.page-contact .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.17;
  filter: saturate(0.72);
  pointer-events: none;
}

.page-contact .contact-hero .shell {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

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

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

.page-contact .hero-head {
  max-width: 880px;
}

.page-contact .hero-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--electric-cyan);
}

.page-contact .hero-head .eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--nebula-purple);
}

.page-contact .hero-lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--text-secondary);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 18px;
  background: rgba(19, 28, 46, 0.84);
  border: var(--line);
  border-top: 2px solid var(--ch, var(--electric-cyan));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .channel:hover {
  transform: translateY(-2px);
  border-color: var(--ch, var(--electric-cyan));
}

.page-contact .channel--mail { --ch: var(--electric-cyan); }
.page-contact .channel--tel { --ch: var(--nebula-purple); }
.page-contact .channel--addr { --ch: var(--amber-gold); }

.page-contact .channel__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.09em;
  color: var(--ch, var(--electric-cyan));
}

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.5;
  color: var(--text-primary);
  text-decoration: none;
  word-break: break-word;
}

.page-contact .channel__value--text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(15px, 1.5vw, 17px);
}

.page-contact a.channel__value:hover {
  color: var(--ch, var(--electric-cyan));
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-secondary);
}

.page-contact .channel__status {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: var(--line);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-block {
  padding-block: clamp(48px, 6.4vw, 86px);
}

.page-contact .block-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-contact .block-head--wide {
  max-width: 70ch;
}

.page-contact .block-head h2 {
  margin-top: 10px;
}

.page-contact .block-head .eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.page-contact .block-lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-secondary);
}

/* ---------- 两栏 ---------- */
.page-contact .contact-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 4.4vw, 60px);
  align-items: start;
}

.page-contact .contact-col--wide .block-lede {
  max-width: 60ch;
}

/* ---------- 截图要素 ---------- */
.page-contact .shot-list {
  list-style: none;
  margin: 0 0 clamp(28px, 3.4vw, 40px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid-line);
  border: var(--line);
}

.page-contact .shot-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--space-ink);
}

.page-contact .shot-list__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--nebula-purple);
  padding-top: 3px;
}

.page-contact .shot-list__text {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-secondary);
}

/* ---------- 自查清单 ---------- */
.page-contact .check-block {
  padding-top: clamp(22px, 2.6vw, 30px);
  border-top: var(--line);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .checklist label {
  display: grid;
  grid-template-columns: 16px 24px 1fr;
  gap: 10px;
  align-items: start;
  padding: 11px 12px;
  border: var(--line);
  background: rgba(11, 18, 32, 0.72);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist label:hover {
  border-color: rgba(47, 227, 208, 0.45);
}

.page-contact .checklist input {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  border: 1px solid var(--grid-line);
  background: transparent;
  cursor: pointer;
}

.page-contact .checklist input:checked {
  background: var(--electric-cyan);
  border-color: var(--electric-cyan);
  box-shadow: inset 0 0 0 3px var(--space-ink);
}

.page-contact .checklist input:focus-visible {
  outline: 1px solid var(--electric-cyan);
  outline-offset: 3px;
}

.page-contact .checklist__num {
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 3px;
}

.page-contact .checklist label > span:last-child {
  font-size: 14px;
  line-height: 1.68;
  color: var(--text-secondary);
}

.page-contact .checklist input:checked ~ span:last-child {
  color: var(--text-primary);
}

.page-contact .check-note {
  display: none;
  margin: 12px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--electric-cyan);
  background: rgba(47, 227, 208, 0.08);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
}

.page-contact .checklist:has(#ck-1:checked):has(#ck-2:checked):has(#ck-3:checked):has(#ck-4:checked) + .check-note {
  display: block;
}

/* ---------- 分流示意 ---------- */
.page-contact .triage-figure {
  margin: 0 0 clamp(20px, 2.4vw, 28px);
  border: var(--line);
  background: linear-gradient(180deg, rgba(122, 92, 255, 0.14), rgba(19, 28, 46, 0.9));
  overflow: hidden;
}

.page-contact .triage-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.92;
}

/* ---------- 分流表 ---------- */
.page-contact .triage {
  border-top: var(--line);
}

.page-contact .triage__item {
  border-bottom: var(--line);
}

.page-contact .triage__item summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 6px;
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

.page-contact .triage__item summary::-webkit-details-marker {
  display: none;
}

.page-contact .triage__item summary:hover {
  background: rgba(47, 227, 208, 0.05);
}

.page-contact .triage__item[open] summary {
  background: rgba(47, 227, 208, 0.06);
  border-left: 2px solid var(--electric-cyan);
  padding-left: 12px;
}

.page-contact .triage__type {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
}

.page-contact .triage__how {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-contact .triage__body {
  padding: 4px 6px 20px;
}

.page-contact .triage__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-secondary);
}

.page-contact .triage__body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 4px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-secondary);
}

.page-contact .triage__body .link-cyan {
  color: var(--electric-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 208, 0.4);
}

.page-contact .triage__body .link-cyan:hover {
  border-bottom-color: var(--electric-cyan);
}

/* ---------- 响应时段 ---------- */
.page-contact .response-band {
  border-top: var(--line);
  border-bottom: var(--line);
  background:
    radial-gradient(70% 120% at 0% 0%, rgba(122, 92, 255, 0.16), transparent 66%),
    linear-gradient(180deg, var(--space-ink), rgba(5, 7, 15, 0.92));
}

.page-contact .response-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
  align-items: start;
}

.page-contact .response-tip {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--amber-gold);
  background: rgba(255, 182, 61, 0.07);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-secondary);
}

.page-contact .response-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--line);
}

.page-contact .response-steps li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: var(--line);
}

.page-contact .response-steps__time {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber-gold);
}

.page-contact .response-steps__text {
  font-size: 14px;
  line-height: 1.74;
  color: var(--text-secondary);
}

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

.page-contact .coop-card {
  padding: 20px 18px 22px;
  border: var(--line);
  background: linear-gradient(180deg, rgba(19, 28, 46, 0.9), rgba(11, 18, 32, 0.72));
  border-bottom: 2px solid var(--nebula-purple);
}

.page-contact .coop-card__tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.09em;
  color: var(--nebula-purple);
}

.page-contact .coop-card h3 {
  margin-bottom: 8px;
}

.page-contact .coop-card p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-contact .coop-card ul {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-contact .coop-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-contact .coop-foot .link-cyan {
  color: var(--electric-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 208, 0.4);
}

.page-contact .coop-foot .link-cyan:hover {
  border-bottom-color: var(--electric-cyan);
}

/* ---------- 尾部细线带 ---------- */
.page-contact .contact-tail {
  border-top: var(--line);
  background: var(--space-ink);
}

.page-contact .contact-tail .shell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.page-contact .contact-tail__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-contact .contact-tail .btn {
  white-space: nowrap;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-contact .triage__item summary {
    grid-template-columns: 170px 1fr;
    gap: 20px;
    align-items: baseline;
  }

  .page-contact .triage__body {
    padding-left: 188px;
    padding-right: 12px;
  }

  .page-contact .response-steps li {
    grid-template-columns: 150px 1fr;
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 940px) {
  .page-contact .contact-cols {
    grid-template-columns: minmax(270px, 0.78fr) 1.32fr;
  }

  .page-contact .response-grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(32px, 4vw, 64px);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-cols {
    grid-template-columns: minmax(300px, 0.72fr) 1.4fr;
    gap: clamp(48px, 5vw, 80px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .checklist label,
  .page-contact .triage__item summary {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }
}
<<<END>>>