.page-contact {
  --cpad: clamp(18px, 4vw, 40px);
  --cgap: clamp(24px, 4.5vw, 56px);
  padding-bottom: clamp(48px, 8vw, 96px);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(34px, 6vw, 74px);
  background-image: radial-gradient(120% 88% at 10% 0%, rgba(53, 240, 176, .10), transparent 62%);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: var(--cgap);
  padding-top: clamp(22px, 4vw, 44px);
  align-items: end;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.022em;
  font-weight: 700;
  margin: 0 0 clamp(14px, 2.2vw, 22px);
  color: var(--c-chalk);
}

.page-contact .contact-hero__intro {
  max-width: 40ch;
  margin: 0;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .contact-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--c-moss);
  padding: 10px 10px 0;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-contact .contact-hero__figure figcaption {
  padding: 12px 2px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-channels {
  border-top: 1px solid var(--line);
  padding: clamp(34px, 5.5vw, 72px) 0;
}

.page-contact .contact-channels__head {
  max-width: 48ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .contact-channels__head h2,
.page-contact .contact-cases__head h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.15;
  letter-spacing: -.018em;
  font-weight: 700;
  color: var(--c-chalk);
  margin: 0 0 14px;
}

.page-contact .contact-channels__head p,
.page-contact .contact-cases__head p {
  margin: 0;
  color: var(--ink-dim);
  line-height: 1.78;
  font-size: 15.5px;
}

.page-contact .contact-channels__body {
  display: grid;
  gap: var(--cgap);
  align-items: start;
}

.page-contact .channel-list {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .channel-list__row {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-list__key {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--ink-mute);
}

.page-contact .channel-list__val {
  margin: 0;
  min-width: 0;
}

.page-contact .channel-list__main {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.5vw, 26px);
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--c-chalk);
  word-break: break-word;
}

.page-contact .channel-list__main--text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(16.5px, 2.1vw, 21px);
  letter-spacing: .01em;
}

.page-contact .channel-list__use {
  display: block;
  margin-top: 9px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-dim);
}

.page-contact .contact-channels__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--c-moss);
  padding: 10px 10px 0;
}

.page-contact .contact-channels__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-channels__figure figcaption {
  padding: 12px 2px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 三类事项 ---------- */
.page-contact .contact-cases {
  border-top: 1px solid var(--line);
  padding: clamp(34px, 5.5vw, 72px) 0;
}

.page-contact .contact-cases__head {
  max-width: 48ch;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .case-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .case {
  padding: clamp(24px, 3.4vw, 34px) 0;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.page-contact .case__tag-row {
  margin: 0 0 14px;
}

.page-contact .case__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.3vw, 25px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 700;
  color: var(--c-chalk);
  margin: 0 0 12px;
}

.page-contact .case__lede {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .case__steps {
  list-style: none;
  counter-reset: cp-step;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .case__steps li {
  counter-increment: cp-step;
  position: relative;
  padding: 13px 12px 13px 40px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-chalk);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .case__steps li::before {
  content: counter(cp-step, decimal-leading-zero);
  position: absolute;
  left: 12px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-signal);
}

.page-contact .case__steps li:hover,
.page-contact .case__steps li:focus-within {
  background: rgba(53, 240, 176, .07);
}

.page-contact .case__foot {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-contact .case__lede a,
.page-contact .case__foot a {
  color: var(--c-signal-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-signal);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .case__lede a:hover,
.page-contact .case__foot a:hover,
.page-contact .case__lede a:focus-visible,
.page-contact .case__foot a:focus-visible {
  color: var(--c-signal);
  border-bottom-color: var(--c-signal);
}

/* ---------- 备案信息 ---------- */
.page-contact .contact-record {
  border-top: 1px solid var(--line);
  padding: clamp(26px, 4vw, 48px) 0 clamp(30px, 5vw, 56px);
}

.page-contact .contact-record__inner {
  display: grid;
  gap: 12px;
}

.page-contact .contact-record__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--ink-mute);
}

.page-contact .contact-record__line {
  margin: 0;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink-mute);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 6px 12px;
}

.page-contact .contact-record__note {
  margin: 0;
  max-width: 54ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .channel-list__row {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: clamp(14px, 2.4vw, 28px);
    align-items: baseline;
  }

  .page-contact .contact-record__inner {
    grid-template-columns: 150px minmax(0, auto) minmax(0, 1fr);
    align-items: center;
    gap: 18px;
  }
}

@media (min-width: 860px) {
  .page-contact .case-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .case {
    padding: 32px 28px 36px;
    border-bottom: 0;
  }

  .page-contact .case + .case {
    border-left: 1px solid var(--line);
  }

  .page-contact .case:first-child {
    padding-left: 0;
  }

  .page-contact .case:last-child {
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(32px, 6vw, 84px);
  }

  .page-contact .contact-channels__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(28px, 4.5vw, 56px);
  }
}
<<<END>>>
</main>