.page-contact {
  --contact-cut: 22px;
  --contact-line: rgba(0, 228, 208, .38);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(44px, 7vw, 96px) 0 clamp(48px, 6vw, 88px);
  background:
    radial-gradient(circle at 84% 16%, rgba(0, 228, 208, .13), transparent 46%),
    radial-gradient(circle at 10% 94%, rgba(47, 123, 255, .11), transparent 42%),
    linear-gradient(180deg, var(--deep) 0%, var(--ink) 100%);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: 0;
  width: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
  opacity: .55;
}

.page-contact .crumb-sep {
  color: var(--mist);
  margin: 0 6px;
}

.page-contact .hero-grid {
  display: grid;
  gap: 34px;
  margin-top: 30px;
}

.page-contact .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(38px, 6.6vw, 82px);
  line-height: 1.02;
  letter-spacing: -.012em;
  color: var(--white);
  margin: 14px 0 22px;
}

.page-contact .hero-copy h1 em {
  font-style: normal;
  font-weight: 500;
  color: var(--white);
  background: linear-gradient(180deg, transparent 62%, var(--contact-line) 62%);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .hero-meta {
  list-style: none;
  margin: 40px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--mist-soft);
  display: grid;
  gap: 12px;
}

.page-contact .hero-meta li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
}

.page-contact .hero-meta span.mono {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: .01em;
  word-break: break-all;
}

.page-contact .hero-meta em {
  font-style: normal;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .hero-media {
  position: relative;
  margin: 0;
  align-self: start;
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(.82) contrast(1.06);
}

.page-contact .hero-media::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(0, 228, 208, .05) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, rgba(5, 9, 15, .18), rgba(5, 9, 15, .62));
  z-index: 1;
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .section-head .section-num {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: 8px;
  border-top: 2px solid var(--cyan);
}

.page-contact .section-head h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.14;
  color: var(--white);
  margin: 4px 0 0;
}

/* ---------- 三条通道 + 邮件结构 ---------- */
.page-contact .contact-channels {
  background: linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
}

.page-contact .channel-mail {
  display: grid;
  gap: 30px;
}

.page-contact .channel-col {
  display: grid;
  gap: 18px;
}

.page-contact .channel-item {
  position: relative;
  padding: 26px 24px 26px 30px;
  background: linear-gradient(140deg, rgba(18, 41, 58, .96), rgba(13, 27, 42, .68));
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, 0 100%);
  transition: transform .4s var(--ease), background .4s var(--ease);
}

.page-contact .channel-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  opacity: .9;
}

.page-contact .channel-item:hover {
  transform: translateX(6px);
  background: linear-gradient(140deg, rgba(18, 41, 58, 1), rgba(13, 27, 42, .86));
}

.page-contact .channel-label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-contact .channel-value {
  font-family: var(--font-data);
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.35;
  color: var(--white);
  margin: 0 0 12px;
  word-break: break-all;
  letter-spacing: .005em;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-line);
  padding-bottom: 2px;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .channel-link:hover {
  color: var(--white);
  border-color: var(--white);
}

.page-contact .mail-shape {
  position: relative;
  padding: 30px 26px 30px 28px;
  background: rgba(10, 58, 68, .34);
  clip-path: polygon(var(--contact-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--contact-cut));
}

.page-contact .mail-shape h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--white);
  line-height: 1.2;
  margin: 8px 0 10px;
}

.page-contact .mail-intro {
  margin: 0 0 24px;
  font-size: 14px;
  color: var(--mist);
}

.page-contact .mail-steps {
  list-style: none;
  counter-reset: mailstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .mail-step {
  position: relative;
  padding-left: 48px;
}

.page-contact .mail-step::before {
  counter-increment: mailstep;
  content: counter(mailstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--ink);
  background: var(--cyan);
  border-radius: 50%;
}

.page-contact .mail-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 36px;
  bottom: -22px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  opacity: .5;
}

.page-contact .mail-step h4 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: .01em;
}

.page-contact .mail-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .mail-sample {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--mist-soft);
}

.page-contact .mail-sample summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--cyan);
  letter-spacing: .02em;
  list-style: none;
}

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

.page-contact .mail-sample summary::before {
  content: "▸ ";
  color: var(--cyan);
}

.page-contact .mail-sample[open] summary::before {
  content: "▾ ";
}

.page-contact .mail-sample-body {
  margin-top: 16px;
  padding: 18px 18px 18px 20px;
  background: rgba(5, 9, 15, .62);
  border-left: 2px solid var(--contact-line);
}

.page-contact .mail-sample-body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .mail-sample-body p.mono {
  font-family: var(--font-data);
  color: var(--white);
  word-break: break-all;
}

.page-contact .mail-sample-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 受理范围 ---------- */
.page-contact .contact-scope {
  background: var(--ink);
}

.page-contact .scope-grid {
  display: grid;
  gap: 18px;
}

.page-contact .scope-card {
  position: relative;
  padding: 28px 24px 26px;
  background: linear-gradient(180deg, rgba(18, 41, 58, .7), rgba(13, 27, 42, .5));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  transition: transform .4s var(--ease);
}

.page-contact .scope-card:hover {
  transform: translateY(-4px);
}

.page-contact .scope-num {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--coral);
  margin: 0 0 14px;
}

.page-contact .scope-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  line-height: 1.3;
  color: var(--white);
}

.page-contact .scope-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .scope-card a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .scope-card a:hover {
  color: var(--white);
  border-color: var(--white);
}

/* ---------- 服务地区 ---------- */
.page-contact .contact-region {
  background:
    radial-gradient(circle at 88% 12%, rgba(0, 228, 208, .09), transparent 44%),
    linear-gradient(180deg, var(--deep) 0%, var(--ink) 100%);
}

.page-contact .region-layout {
  display: grid;
  gap: 34px;
}

.page-contact .region-copy .section-num {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: 8px;
  border-top: 2px solid var(--cyan);
  margin-bottom: 16px;
}

.page-contact .region-copy h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.14;
  color: var(--white);
  margin: 6px 0 18px;
}

.page-contact .region-copy .lead {
  margin-bottom: 30px;
}

.page-contact .region-facts {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--mist-soft);
}

.page-contact .region-fact {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--mist-soft);
}

.page-contact .region-fact dt {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .region-fact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .region-fact dd a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .region-fact dd a:hover {
  color: var(--cyan);
}

.page-contact .region-media {
  position: relative;
  margin: 0;
  align-self: start;
}

.page-contact .region-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(.84) contrast(1.04);
}

.page-contact .region-media::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(0, 228, 208, .05) 0 1px, transparent 1px 5px),
    linear-gradient(180deg, rgba(5, 9, 15, .12), rgba(5, 9, 15, .58));
}

.page-contact .region-media .media-caption {
  position: relative;
  z-index: 1;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-col {
    grid-template-columns: 1fr;
  }

  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .region-fact {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .95fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .channel-mail {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .region-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

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

@media (min-width: 1120px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  .page-contact .channel-item:hover,
  .page-contact .scope-card:hover {
    transform: none;
  }
}
<<<END>>>