.page-contact {
  --contact-line: rgba(14, 42, 71, 0.16);
  --contact-shadow: 8px 8px 0 rgba(14, 42, 71, 0.12);
}

.page-contact .section-block {
  margin-top: 64px;
}

.page-contact .section-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-contact .section-head .num-block {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--coral);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  transition: transform 200ms var(--ease-tide), box-shadow 200ms var(--ease-tide);
}

.page-contact .section-head:hover .num-block {
  transform: translate(-2px, -2px);
  box-shadow: 2px 2px 0 rgba(14, 42, 71, 0.16);
}

.page-contact .section-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 25px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--deep-sea);
}

.page-contact .section-lead {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  margin-top: 20px;
  padding: 28px 20px 26px;
  background: var(--paper);
}

.page-contact .contact-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--tide-blue);
}

.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--deep-sea);
}

.page-contact .contact-hero-lead {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .contact-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--contact-line);
}

/* ---------- 通道分诊 ---------- */

.page-contact .triage {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.page-contact .triage-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-contact .triage-tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border: 2px solid var(--deep-sea);
  border-radius: 999px;
  background: var(--paper);
  color: var(--deep-sea);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 200ms var(--ease-tide), color 200ms var(--ease-tide),
    box-shadow 200ms var(--ease-tide);
}

.page-contact .triage-tab .tab-no {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--sand);
  letter-spacing: 0.04em;
}

.page-contact .triage-tab:hover,
.page-contact .triage-tab:focus-visible {
  background: var(--tide-green);
  border-color: var(--tide-green);
  color: var(--paper);
  box-shadow: 4px 4px 0 rgba(14, 42, 71, 0.16);
}

.page-contact .triage-tab:hover .tab-no,
.page-contact .triage-tab:focus-visible .tab-no {
  color: var(--paper);
}

.page-contact .triage-panels {
  min-width: 0;
}

.page-contact .triage-panel {
  display: none;
  padding: 24px 20px 26px;
  background: var(--paper);
  border: 2px solid var(--deep-sea);
  box-shadow: var(--contact-shadow);
}

.page-contact .triage-panels:not(:has(.triage-panel:target)) > .triage-panel:first-child {
  display: block;
}

.page-contact .triage-panel:target {
  display: block;
  animation: contact-tide 400ms var(--ease-tide) both;
}

.page-contact .triage-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: -0.01em;
  color: var(--deep-sea);
}

.page-contact .panel-lead {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--rock);
}

.page-contact .panel-facts {
  display: grid;
  gap: 0;
  margin: 18px 0 0;
}

.page-contact .panel-facts > div {
  padding: 14px 0 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .panel-facts > div + div {
  margin-top: 14px;
}

.page-contact .panel-facts dt {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--tide-blue);
}

.page-contact .panel-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--rock);
}

/* ---------- 联系方式 ---------- */

.page-contact .reach-grid {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

.page-contact .contact-card {
  position: relative;
  padding: 28px 20px 24px;
  background: var(--paper);
  border: 2px solid var(--deep-sea);
  box-shadow: var(--contact-shadow);
}

.page-contact .corner-flag {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 46px;
  height: 46px;
  background: var(--coral);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}

.page-contact .contact-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--deep-sea);
}

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

.page-contact .contact-card .contact-list li {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--contact-line);
}

.page-contact .contact-card .contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--tide-blue);
}

.page-contact .contact-card .contact-val {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--deep-sea);
  word-break: break-word;
}

.page-contact .contact-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

.page-contact .reach-figure {
  margin: 0;
  border: 2px solid var(--deep-sea);
  overflow: hidden;
}

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

/* ---------- 响应节奏 ---------- */

.page-contact .rhythm-band {
  margin-top: 64px;
  padding: 42px 0 46px;
  background: var(--deep-sea);
  border-top: 6px solid var(--coral);
  color: var(--mist);
}

.page-contact .rhythm-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-contact .rhythm-head .num-block--sand {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--coral);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.page-contact .rhythm-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 25px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-contact .rhythm-head p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-dark-soft);
}

.page-contact .rhythm-list {
  display: grid;
  gap: 22px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .rhythm-list li {
  padding-top: 18px;
  border-top: 1px solid var(--on-dark-line);
}

.page-contact .rhythm-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--sand);
}

.page-contact .rhythm-list h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--mist);
}

.page-contact .rhythm-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--on-dark-soft);
}

/* ---------- 合作流程 ---------- */

.page-contact .flow {
  display: grid;
  gap: 16px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--paper);
  border: 2px solid var(--deep-sea);
}

.page-contact .flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  background: var(--coral);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  transition: transform 200ms var(--ease-tide), box-shadow 200ms var(--ease-tide);
}

.page-contact .flow-step:hover .flow-num {
  transform: translate(-2px, -2px);
  box-shadow: 2px 2px 0 rgba(14, 42, 71, 0.16);
}

.page-contact .flow-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--deep-sea);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--rock);
}

.page-contact .flow-time {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 10px;
  border: 1px solid var(--tide-green);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--tide-green);
}

/* ---------- 来信准备 ---------- */

.page-contact .prep-grid {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-contact .prep-item {
  padding: 20px 18px 22px;
  background: var(--mist);
  border-left: 6px solid var(--sand);
  border-top: 1px solid var(--contact-line);
  border-right: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .prep-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-contact .prep-item h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--deep-sea);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--rock);
}

.page-contact .prep-tail {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--contact-line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .prep-tail a {
  color: var(--tide-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .prep-tail a:hover {
  color: var(--coral);
}

/* ---------- 收尾 ---------- */

.page-contact .closing-band {
  margin-top: 64px;
  background: var(--deep-sea-2);
  border-top: 6px solid var(--coral);
}

.page-contact .closing-inner {
  display: grid;
  gap: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.page-contact .closing-copy {
  padding: 36px 0 32px;
}

.page-contact .closing-copy h2 {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-size: 26px;
  line-height: 1.3;
  color: var(--mist);
}

.page-contact .closing-copy p {
  margin: 0 0 22px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--on-dark-soft);
}

.page-contact .closing-figure {
  margin: 0;
  overflow: hidden;
}

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

@keyframes contact-tide {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .triage-panel:target {
    animation: none;
  }
  .page-contact .section-head:hover .num-block,
  .page-contact .flow-step:hover .flow-num {
    transform: none;
  }
}

@media (min-width: 700px) {
  .page-contact .section-block {
    margin-top: 88px;
  }

  .page-contact .contact-hero {
    padding: 40px 36px 36px;
  }

  .page-contact .contact-hero h1 {
    font-size: 44px;
  }

  .page-contact .section-head h2 {
    font-size: 30px;
  }

  .page-contact .triage-panel {
    padding: 30px 28px 32px;
  }

  .page-contact .rhythm-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

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

@media (min-width: 960px) {
  .page-contact .section-block {
    margin-top: 104px;
  }

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

  .page-contact .section-head .num-block,
  .page-contact .rhythm-head .num-block--sand {
    width: 44px;
    height: 44px;
    font-size: 17px;
  }

  .page-contact .contact-hero h1 {
    font-size: 52px;
    max-width: 18em;
  }

  .page-contact .triage {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 32px;
    margin-top: 36px;
  }

  .page-contact .triage-tabs {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    align-self: start;
    position: sticky;
    top: 84px;
    gap: 10px;
  }

  .page-contact .triage-tab {
    justify-content: flex-start;
    padding: 12px 18px;
    font-size: 15.5px;
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
    gap: 36px;
    margin-top: 36px;
  }

  .page-contact .contact-card {
    padding: 32px 30px 28px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 36px;
  }

  .page-contact .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 37px;
    left: 100%;
    width: 16px;
    height: 2px;
    background: var(--deep-sea);
  }

  .page-contact .flow-step {
    padding: 22px 18px 24px;
  }

  .page-contact .closing-band {
    margin-top: 104px;
  }

  .page-contact .closing-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-contact .closing-copy {
    padding: 56px 40px 56px 0;
  }

  .page-contact .closing-figure {
    border-left: 2px solid var(--coral);
    align-self: stretch;
    min-height: 340px;
  }
}
</<PAGE_CSS>>>