.page-contact {
  --contact-gap: clamp(20px, 3vw, 36px);
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(18px, 3vw, 34px);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.page-contact .breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-contact .breadcrumb__sep {
  color: var(--frame);
}

/* 首屏 */
.page-contact .contact-hero {
  padding: clamp(22px, 4vw, 42px) 0 clamp(28px, 4vw, 54px);
}
.page-contact .contact-hero__head {
  max-width: 64ch;
}
.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  color: var(--ink);
}
.page-contact .contact-hero .lede {
  margin-top: 18px;
  max-width: 60ch;
  color: var(--ink-2);
}
.page-contact .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .hero-facts li {
  border: var(--line);
  background: var(--panel);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.page-contact .contact-hero__banner {
  margin: clamp(24px, 4vw, 44px) 0 0;
}

/* 双栏联系卡 */
.page-contact .contact-pair {
  padding-block: clamp(28px, 4.4vw, 64px);
}
.page-contact .contact-pair h2 {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
}
.page-contact .contact-pair__grid {
  display: grid;
  gap: 2px;
  background: var(--frame);
  border: var(--line);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--panel);
  padding: clamp(22px, 3.4vw, 38px);
}
.page-contact .contact-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
  word-break: break-word;
}
.page-contact .contact-card--mail .contact-card__value {
  font-size: clamp(17px, 4.5vw, 30px);
}
.page-contact .contact-card--phone .contact-card__value {
  font-size: clamp(28px, 6vw, 46px);
  color: var(--orange);
}
.page-contact .contact-card__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}
.page-contact .contact-card__foot {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 2px dashed var(--frame);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* 来信地址与备案 */
.page-contact .registry {
  padding-block: clamp(30px, 4.6vw, 72px);
  border-top: var(--line);
}
.page-contact .registry__grid {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
}
.page-contact .registry h2 {
  margin: 12px 0 0;
}
.page-contact .registry__item {
  margin-top: clamp(20px, 3vw, 28px);
  padding-left: 16px;
  border-left: 4px solid var(--frame);
}
.page-contact .registry__item .note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
}
.page-contact .registry__k {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.page-contact .registry__v {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(16px, 2.8vw, 20px);
  line-height: 1.5;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.page-contact .registry-code {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: 16px 18px;
  background: var(--mist);
  border: var(--line);
}
.page-contact .registry-code .registry__k {
  color: var(--cyan);
}
.page-contact .registry-code .registry__v {
  color: var(--paper);
  font-size: clamp(18px, 3.2vw, 24px);
  font-weight: 700;
}
.page-contact .registry__media {
  margin: 0;
}

/* 受理范围 */
.page-contact .scope {
  background: var(--panel);
  border-top: var(--line);
  border-bottom: var(--line);
  padding-block: clamp(32px, 5vw, 76px);
}
.page-contact .scope h2 {
  margin: 12px 0 0;
}
.page-contact .scope .lede {
  margin-top: 14px;
  max-width: 56ch;
  color: var(--ink-2);
}
.page-contact .scope__grid {
  display: grid;
  gap: 2px;
  margin-top: clamp(22px, 3.2vw, 38px);
  background: var(--frame);
  border: var(--line);
}
.page-contact .scope__col {
  background: var(--bg-deep);
  padding: clamp(20px, 3vw, 32px);
}
.page-contact .scope__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-contact .scope__title::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--cyan);
}
.page-contact .scope__col--no .scope__title::before {
  background: var(--clay);
}
.page-contact .scope__list {
  display: grid;
  gap: 16px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .scope__list li {
  padding-top: 14px;
  border-top: 2px dashed var(--frame);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-2);
}
.page-contact .scope__list strong {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

/* 自查清单 */
.page-contact .selfcheck {
  padding-block: clamp(32px, 5vw, 80px);
}
.page-contact .selfcheck h2 {
  margin: 12px 0 0;
}
.page-contact .selfcheck .lede {
  margin-top: 14px;
  max-width: 56ch;
  color: var(--ink-2);
}
.page-contact .accordion {
  margin-top: clamp(22px, 3.2vw, 34px);
  border-top: var(--line);
}
.page-contact .accordion__item {
  border-bottom: var(--line);
}
.page-contact .accordion__heading {
  margin: 0;
}
.page-contact .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 4px;
  background: transparent;
  border: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 800;
  letter-spacing: -0.01em;
  text-align: left;
  cursor: pointer;
  transition: color 0.22s var(--ease);
}
.page-contact .accordion__trigger:hover,
.page-contact .accordion__trigger:focus-visible {
  color: var(--cyan);
}
.page-contact .accordion__trigger[aria-expanded="true"] {
  color: var(--cyan);
}
.page-contact .check-num {
  flex: none;
  padding: 3px 7px;
  border: 2px solid var(--clay);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--clay);
}
.page-contact .accordion__icon {
  flex: none;
  margin-left: auto;
  width: 13px;
  height: 13px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.24s var(--ease);
}
.page-contact .accordion__trigger[aria-expanded="true"] .accordion__icon {
  transform: rotate(-135deg);
}
.page-contact .accordion__panel {
  max-width: 70ch;
  padding: 0 4px 22px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.78;
}
.page-contact .accordion__panel p {
  margin: 0 0 12px;
}
.page-contact .accordion__panel p:last-child {
  margin-bottom: 0;
}
.page-contact .accordion__link {
  margin: 0;
}
.page-contact .accordion__link .footer-link {
  display: inline-block;
  font-size: 13px;
}

/* 相关页面 */
.page-contact .contact-links h2 {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}
.page-contact .contact-links__grid {
  display: grid;
  gap: 2px;
  background: var(--frame);
  border: var(--line);
  box-shadow: var(--shadow-soft);
}
.page-contact .contact-link {
  display: block;
  padding: clamp(18px, 2.6vw, 24px);
  background: var(--bg-deep);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.22s var(--ease);
}
.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  background: var(--panel);
}
.page-contact .contact-link__k {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-contact .contact-link__t {
  display: block;
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-contact .contact-link__d {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* 响应式 */
@media (min-width: 720px) {
  .page-contact .contact-links__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-pair__grid {
    grid-template-columns: 1.12fr 0.88fr;
    align-items: stretch;
  }
  .page-contact .contact-card--mail {
    border-right: var(--line);
  }
  .page-contact .contact-card--phone {
    padding-top: clamp(30px, 4vw, 46px);
  }
  .page-contact .registry__grid {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: center;
  }
  .page-contact .scope__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-links__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .breadcrumb a,
  .page-contact .accordion__trigger,
  .page-contact .accordion__icon,
  .page-contact .contact-link {
    transition: none;
  }
}
<<<END>>>