.page-contact {
  --contact-line: #E0CDB4;
  --contact-bar: 4px;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding-top: clamp(1.4rem, 4vw, 2.2rem);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--ink-2);
}
.page-contact .breadcrumb__link {
  color: var(--gold-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  border-bottom-color: var(--gold-deep);
  outline: none;
}
.page-contact .breadcrumb__sep { color: var(--mist); }
.page-contact .breadcrumb__here { color: var(--ink-2); }

/* 首屏 */
.page-contact .contact-lead {
  position: relative;
  padding: clamp(1.6rem, 5vw, 2.8rem) 0 clamp(1.8rem, 5vw, 3rem);
}
.page-contact .contact-lead__title {
  margin: .6rem 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.15rem, 7vw, 4.3rem);
  line-height: 1.12;
  letter-spacing: .02em;
  color: var(--ink);
}
.page-contact .contact-lead__title::after {
  content: "";
  display: block;
  width: clamp(64px, 14vw, 132px);
  height: 5px;
  margin-top: clamp(1rem, 3vw, 1.6rem);
  background: var(--gold);
}
.page-contact .contact-lead__lede {
  max-width: 34rem;
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .contact-lead__facts {
  list-style: none;
  margin: clamp(1.8rem, 5vw, 2.6rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--contact-line);
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}
.page-contact .contact-lead__facts li {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: 1rem 1.1rem;
  background: var(--paper);
}
.page-contact .contact-lead__k {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}
.page-contact .contact-lead__v {
  font-family: var(--font-serif);
  font-size: 1.04rem;
  color: var(--ink);
}

/* 章节锚点 */
.page-contact .contact-toc {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .5rem;
  padding-bottom: clamp(2rem, 6vw, 3.2rem);
}
.page-contact .contact-toc a {
  padding: .42rem .8rem;
  border: 1px solid var(--contact-line);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--ink-2);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-contact .contact-toc a:hover,
.page-contact .contact-toc a:focus-visible,
.page-contact .contact-toc a.is-active,
.page-contact .contact-toc a[aria-current="true"] {
  color: var(--gold-deep);
  border-color: var(--gold);
  background: var(--paper);
  outline: none;
}
.page-contact .contact-toc a:focus-visible {
  box-shadow: 0 0 0 2px var(--paper), 0 0 0 4px var(--gold-deep);
}

/* 三条通道 */
.page-contact .contact-channels {
  padding: clamp(2.4rem, 7vw, 4.2rem) 0;
  background: var(--sand);
  border-top: 1px solid var(--contact-line);
}
.page-contact .contact-channels__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  margin-top: clamp(1.8rem, 5vw, 2.6rem);
}
.page-contact .contact-channels__cards {
  display: grid;
  gap: 1rem;
  align-content: start;
}
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: 1.4rem 1.3rem 1.4rem 1.7rem;
  background: var(--paper);
  border: 1px solid var(--contact-line);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--contact-bar);
  background: var(--gold);
  transition: width 220ms var(--ease);
}
.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 8px 24px rgba(30, 27, 24, .07);
}
.page-contact .contact-card:hover::before,
.page-contact .contact-card:focus-within::before {
  width: 11px;
}
.page-contact .contact-card__index {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}
.page-contact .contact-card__title {
  margin: 0 0 .7rem;
  font-family: var(--font-serif);
  font-size: 1.32rem;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .contact-card__value {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2.6vw, 1.18rem);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--gold-deep);
  overflow-wrap: anywhere;
}
.page-contact .contact-card__body {
  margin: 0 0 1.15rem;
  max-width: 48ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ink-2);
}
.page-contact .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

/* 复制按钮 */
.page-contact .copy-btn {
  padding: .46rem .92rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--mist);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-contact .copy-btn:hover {
  color: var(--gold-deep);
  border-color: var(--gold-deep);
  background: var(--sand);
}
.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 2px;
}
.page-contact .copy-btn[data-copied] {
  color: var(--river);
  border-color: var(--river);
  background: rgba(44, 106, 102, .08);
}

/* 通道侧图 */
.page-contact .contact-channels__figure {
  margin: 0;
  border: 1px solid var(--contact-line);
  background: var(--paper);
}
.page-contact .contact-channels__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(.94) sepia(.06);
}
.page-contact .contact-channels__caption {
  padding: .85rem 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--ink-2);
  border-top: 1px solid var(--contact-line);
}

/* 受理范围 */
.page-contact .contact-scope {
  padding: clamp(2.6rem, 7vw, 4.4rem) 0;
  background: var(--paper);
}
.page-contact .contact-scope__grid {
  display: grid;
  gap: 0;
  margin-top: clamp(1.8rem, 5vw, 2.6rem);
  border-top: 1px solid var(--contact-line);
}
.page-contact .contact-scope__item {
  padding: 1.5rem 0 1.6rem;
  border-bottom: 1px solid var(--contact-line);
}
.page-contact .contact-scope__no {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--gold-deep);
}
.page-contact .contact-scope__title {
  margin: 0 0 .65rem;
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 3vw, 1.34rem);
  font-weight: 600;
  color: var(--ink);
}
.page-contact .contact-scope__text {
  margin: 0;
  max-width: 48ch;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-2);
}

/* 咨询前准备 */
.page-contact .contact-prepare {
  padding: clamp(2.6rem, 7vw, 4.4rem) 0;
  background: var(--sand);
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}
.page-contact .contact-prepare__inner {
  display: grid;
  gap: clamp(1.8rem, 5vw, 3rem);
}
.page-contact .contact-prepare__title {
  margin: .55rem 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 4.6vw, 2.35rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}
.page-contact .contact-prepare__lede {
  margin: 1rem 0 0;
  max-width: 32rem;
  font-size: .97rem;
  line-height: 1.85;
  color: var(--ink-2);
}
.page-contact .contact-prepare__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--mist);
}
.page-contact .contact-prepare__row {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--mist);
}
.page-contact .contact-prepare__n {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--gold-deep);
  padding-top: .18rem;
}
.page-contact .contact-prepare__item {
  margin: 0 0 .4rem;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .contact-prepare__body p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.82;
  color: var(--ink-2);
}

/* 回复节奏 */
.page-contact .contact-response {
  padding: clamp(2.8rem, 7vw, 4.6rem) 0;
  background: var(--night);
  color: var(--paper);
}
.page-contact .contact-response .eyebrow {
  color: var(--dune);
}
.page-contact .contact-response .section-head__title {
  color: var(--paper);
}
.page-contact .contact-response .section-head__note {
  color: var(--dune);
}
.page-contact .contact-response__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.8rem, 5vw, 2.4rem);
  background: rgba(224, 205, 180, .24);
  border: 1px solid rgba(224, 205, 180, .24);
}
.page-contact .contact-response__cell {
  padding: 1.5rem 1.4rem 1.6rem;
  background: var(--night);
}
.page-contact .contact-response__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--dune);
}
.page-contact .contact-response__clock {
  margin: .55rem 0 .45rem;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 5.4vw, 2.3rem);
  line-height: 1.15;
  color: var(--gold);
  letter-spacing: .01em;
}
.page-contact .contact-response__sub {
  margin: 0;
  font-size: .86rem;
  line-height: 1.75;
  color: rgba(253, 250, 244, .74);
}
.page-contact .contact-response__note {
  margin: clamp(1.4rem, 4vw, 2rem) 0 0;
  max-width: 40rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--dune);
}

/* 内容协作 */
.page-contact .contact-partner {
  padding: clamp(2.6rem, 7vw, 4.4rem) 0;
  background: var(--paper);
}
.page-contact .contact-partner__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  margin-top: clamp(1.8rem, 5vw, 2.4rem);
}
.page-contact .contact-partner__col {
  padding-top: 1.2rem;
  border-top: 2px solid var(--river);
}
.page-contact .contact-partner__h {
  margin: 0 0 .9rem;
  font-family: var(--font-serif);
  font-size: 1.14rem;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .contact-partner__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}
.page-contact .contact-partner__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink-2);
}
.page-contact .contact-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: .5rem;
  height: 2px;
  background: var(--gold);
}
.page-contact .contact-partner__foot {
  margin: 1.2rem 0 0;
  padding: .9rem 1rem;
  background: var(--sand);
  border-left: 3px solid var(--cinnabar);
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink);
}

/* 书面往来 */
.page-contact .contact-postal {
  padding: clamp(2.4rem, 7vw, 4rem) 0 clamp(2.6rem, 7vw, 4.4rem);
  background: var(--sand);
  border-top: 1px solid var(--contact-line);
}
.page-contact .contact-postal__card {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.4rem);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  background: var(--paper);
  border: 1px solid var(--contact-line);
}
.page-contact .contact-postal__title {
  margin: .55rem 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 4.4vw, 2.1rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}
.page-contact .contact-postal__addr {
  margin: 0 0 1rem;
  padding: .9rem 1.1rem;
  background: var(--sand);
  border-left: var(--contact-bar) solid var(--gold);
  font-family: var(--font-mono);
  font-size: clamp(.88rem, 2.5vw, 1.02rem);
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.page-contact .contact-postal__text {
  margin: 0 0 1.3rem;
  max-width: 40rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-2);
}
.page-contact .contact-postal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  align-items: center;
}
.page-contact .contact-postal__aside {
  padding-top: 1.2rem;
  border-top: 2px solid var(--gold);
}
.page-contact .contact-postal__asideTitle {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}
.page-contact .contact-postal__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}
.page-contact .contact-postal__links a {
  display: block;
  padding: .55rem 0;
  border-bottom: 1px solid var(--contact-line);
  font-size: .92rem;
  color: var(--gold-deep);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.page-contact .contact-postal__links a:hover,
.page-contact .contact-postal__links a:focus-visible {
  color: var(--river);
  border-bottom-color: var(--river);
  padding-left: .35rem;
  outline: none;
}

/* 页尾横幅 */
.page-contact .contact-banner {
  margin: 0;
  position: relative;
  background: var(--night);
}
.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  filter: saturate(.9) sepia(.08);
}
.page-contact .contact-banner__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: .9rem clamp(1.2rem, 4vw, 2.4rem);
  background: linear-gradient(to top, rgba(16, 59, 57, .82), rgba(16, 59, 57, 0));
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--paper);
}

/* 断点 */
@media (min-width: 640px) {
  .page-contact .contact-lead__facts {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .contact-scope__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.6rem, 4vw, 3rem);
  }
  .page-contact .contact-response__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .contact-partner__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-contact .contact-prepare__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    align-items: start;
  }
  .page-contact .contact-postal__card {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-card::before,
  .page-contact .contact-toc a,
  .page-contact .copy-btn,
  .page-contact .contact-postal__links a {
    transition: none;
  }
  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within {
    transform: none;
  }
}
<<<END>>>