.page-contact {
  --pc-pad: clamp(18px, 2.4vw, 28px);
  --pc-radius: 12px;
  color: var(--paper);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-contact .breadcrumbs {
  padding-block: clamp(22px, 3vw, 34px) 10px;
  font-size: .78rem;
  letter-spacing: .06em;
}

.page-contact .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-head {
  padding-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-head .eyebrow {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
}

.page-contact .contact-head h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.6vw, 4.1rem);
  line-height: 1.05;
  letter-spacing: -.005em;
  color: var(--white);
  margin: 16px 0 20px;
  max-width: 18ch;
}

.page-contact .contact-head__lead {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(.98rem, 1.15vw, 1.1rem);
  line-height: 1.8;
  color: var(--paper);
}

.page-contact .contact-head__lead strong {
  color: var(--lime);
  font-weight: 600;
}

.page-contact .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-contact .chip-row .capsule {
  display: inline-block;
  padding: 7px 15px;
  font-size: .76rem;
  letter-spacing: .07em;
  color: var(--paper);
  text-decoration: none;
  background: var(--sea-800);
  border: 1px solid var(--line);
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-contact .chip-row .capsule:hover,
.page-contact .chip-row .capsule:focus-visible {
  color: var(--white);
  background: rgba(255, 122, 26, .14);
  border-color: var(--signal);
}

/* ---------- 非对称两栏骨架 ---------- */
.page-contact .contact-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  padding-top: clamp(30px, 4.5vw, 56px);
}

@media (max-width: 1023px) {
  .page-contact .contact-aside {
    order: -1;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 108px;
    display: grid;
    gap: 16px;
  }
}

/* ---------- 区块通用 ---------- */
.page-contact .contact-block {
  margin-bottom: clamp(40px, 6vw, 72px);
}

.page-contact .contact-block:last-child {
  margin-bottom: 0;
}

.page-contact .contact-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.page-contact .contact-block__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--signal);
}

.page-contact .contact-block__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.28rem, 2.5vw, 1.95rem);
  letter-spacing: .005em;
  color: var(--white);
}

.page-contact .contact-block__lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 受理范围 ---------- */
.page-contact .scope-list {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

@media (min-width: 660px) {
  .page-contact .scope-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .scope-item {
  position: relative;
  background: var(--sea-700);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  padding: var(--pc-pad);
  border-radius: var(--radius-xs);
  transition: border-color .25s ease, transform .25s ease;
}

.page-contact .scope-item:hover {
  border-color: var(--line-hard);
  transform: translateY(-2px);
}

.page-contact .scope-item--record {
  border-left-color: var(--signal);
}

.page-contact .scope-item--query {
  border-left-color: var(--lime);
}

.page-contact .scope-item--cite {
  border-left-color: var(--cyan);
}

.page-contact .scope-item--partner {
  border-left-color: var(--amber);
}

.page-contact .scope-item__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-contact .scope-item h3 {
  margin: 0 0 10px;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .scope-item p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .scope-item p strong {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 四步流程 ---------- */
.page-contact .flow-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .flow-step {
  position: relative;
  padding: 0 0 24px 44px;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: -2px;
  width: 2px;
  background: var(--line);
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step:last-child::before {
  display: none;
}

.page-contact .flow-step__num {
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  color: var(--sea-900);
  background: var(--cyan);
}

.page-contact .flow-step:nth-child(1) .flow-step__num {
  background: var(--signal);
}

.page-contact .flow-step:nth-child(2) .flow-step__num {
  background: var(--amber);
}

.page-contact .flow-step:nth-child(3) .flow-step__num {
  background: var(--lime);
}

.page-contact .flow-step:nth-child(4) .flow-step__num {
  background: var(--cyan);
}

.page-contact .flow-step h3 {
  margin: 2px 0 8px;
  font-size: .98rem;
  font-weight: 600;
  color: var(--white);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.74;
  color: var(--mist);
}

@media (min-width: 800px) {
  .page-contact .flow-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    position: relative;
    gap: 0;
  }

  .page-contact .flow-track::before {
    content: "";
    position: absolute;
    top: 45px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--signal), var(--amber), var(--lime), var(--cyan));
    opacity: .55;
  }

  .page-contact .flow-step {
    padding: 0 18px 0 0;
  }

  .page-contact .flow-step::before {
    display: none;
  }

  .page-contact .flow-step__num {
    position: static;
    width: 44px;
    height: 44px;
    font-size: 1rem;
    margin-bottom: 16px;
    box-shadow: 0 0 0 6px var(--sea-800);
  }

  .page-contact .flow-step h3 {
    margin-top: 0;
  }
}

/* ---------- 图文容器 ---------- */
.page-contact .media-frame {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--sea-900);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-figure {
  margin-bottom: 26px;
}

.page-contact .contact-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 材料清单 ---------- */
.page-contact .material-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

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

@media (min-width: 720px) {
  .page-contact .material-item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

.page-contact .material-item__key {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .material-item p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 到访 ---------- */
.page-contact .visit-grid {
  display: grid;
  gap: 22px;
}

@media (min-width: 880px) {
  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    gap: 34px;
    align-items: start;
  }
}

.page-contact .visit-address {
  margin: 0 0 20px;
  padding-left: 16px;
  border-left: 3px solid var(--signal);
  font-family: var(--font-mono);
  font-size: clamp(.9rem, 1.1vw, .98rem);
  line-height: 1.78;
  color: var(--white);
}

.page-contact .visit-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .visit-notes li {
  position: relative;
  padding-left: 20px;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .visit-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 合作对接 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .partner-card {
  background: var(--sea-800);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--sea-600);
  padding: var(--pc-pad);
  border-radius: var(--radius-xs);
}

.page-contact .partner-card:nth-child(1) {
  border-top-color: var(--cyan);
}

.page-contact .partner-card:nth-child(2) {
  border-top-color: var(--lime);
}

.page-contact .partner-card:nth-child(3) {
  border-top-color: var(--signal);
}

.page-contact .partner-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .partner-card ul {
  margin: 0;
  padding-left: 1.05em;
  display: grid;
  gap: 8px;
  font-size: .87rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 右侧联系卡 ---------- */
.page-contact .channel-card {
  position: relative;
  background: var(--sea-700);
  border: 1px solid var(--line-soft);
  padding: var(--pc-pad);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--signal);
}

.page-contact .channel-card--tel::before {
  background: var(--lime);
}

.page-contact .channel-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-contact .channel-card__value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(.96rem, 2.1vw, 1.14rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
  word-break: break-all;
}

.page-contact .channel-card__note {
  margin: 0 0 16px;
  font-size: .87rem;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .channel-card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
}

.page-contact .aside-tip {
  margin-top: 16px;
  padding: 16px var(--pc-pad);
  background: var(--sea-900);
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
}

.page-contact .aside-tip p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-contact .aside-tip a:hover,
.page-contact .aside-tip a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--signal);
}

.page-contact .contact-topbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  padding: 10px 22px;
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--paper);
  text-decoration: none;
  background: var(--sea-800);
  border: 1px solid var(--line);
  transition: border-color .2s ease, color .2s ease;
}

.page-contact .contact-topbtn:hover,
.page-contact .contact-topbtn:focus-visible {
  color: var(--white);
  border-color: var(--signal);
}

@media (min-width: 1024px) {
  .page-contact .contact-topbtn {
    margin-top: 4px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .scope-item,
  .page-contact .chip-row .capsule,
  .page-contact .contact-topbtn {
    transition: none;
  }

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