.page-contact {
  --pc-gap: clamp(14px, 2vw, 26px);
  --pc-dim: #AEB7D0;
  --pc-rule-dark: rgba(248, 250, 255, .16);
  --pc-rule-paper: #CFC4AB;
  background-color: var(--night);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(28px, 4.5vw, 52px);
  border-bottom: var(--bw) solid var(--ink);
}

.page-contact .pc-hero .crumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .pc-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 86px);
  line-height: 1.06;
  letter-spacing: .05em;
  color: var(--white);
}

.page-contact .pc-hero__lead {
  max-width: 54ch;
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.85;
  color: var(--pc-dim);
}

/* ---------- 页内目录 ---------- */
.page-contact .pc-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(26px, 4vw, 46px);
  padding-top: 16px;
  border-top: 1px solid var(--pc-rule-dark);
}

.page-contact .pc-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--pc-rule-dark);
  color: var(--white);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: .04em;
  transition: color .12s var(--ease), border-color .12s var(--ease);
}

.page-contact .pc-index__link:hover,
.page-contact .pc-index__link:focus-visible {
  color: var(--blue-lift);
  border-color: var(--blue-lift);
}

.page-contact .pc-index__link.is-current {
  color: var(--blue-lift);
  border-color: var(--blue);
}

.page-contact .pc-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-contact .pc-index__link.is-current .pc-index__num {
  color: var(--blue);
}

/* ---------- 分区与区块头 ---------- */
.page-contact .band {
  padding: clamp(40px, 6.5vw, 84px) 0;
}

.page-contact .band + .band {
  border-top: var(--bw) solid var(--ink);
}

.page-contact .pc-head {
  max-width: 780px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .pc-head__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .pc-head__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.16;
  letter-spacing: .04em;
  color: var(--white);
}

.page-contact .pc-head__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pc-dim);
}

.page-contact .band--paper .pc-head__title {
  color: var(--ink);
}

.page-contact .band--paper .pc-head__lead,
.page-contact .band--paper .pc-head__num {
  color: var(--muted-ink);
}

/* ---------- 01 三类事项分流 ---------- */
.page-contact .pc-flow {
  margin: 0 0 clamp(26px, 4vw, 46px);
  border: var(--bw) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--night);
}

.page-contact .pc-flow img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 240px);
  object-fit: cover;
}

.page-contact .pc-routes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.2vw, 28px);
  background: var(--paper);
  color: var(--ink);
  border: var(--bw) solid var(--ink);
  box-shadow: var(--shadow);
}

.page-contact .pc-card__tag {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted-ink);
}

.page-contact .pc-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 2.9vw, 33px);
  line-height: 1.14;
  letter-spacing: .03em;
  color: var(--ink);
}

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

.page-contact .pc-card__label {
  margin: 6px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--paper-2);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted-ink);
}

.page-contact .pc-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .pc-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .pc-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--paper-2);
}

.page-contact .pc-card--red .pc-card__label {
  border-top-color: var(--red);
}

.page-contact .pc-card--red .pc-card__list li::before { background: var(--red); }
.page-contact .pc-card--blue .pc-card__list li::before { background: var(--blue); }
.page-contact .pc-card--yellow .pc-card__list li::before { background: var(--corner); }

/* ---------- 02 时效与分级 ---------- */
.page-contact .pc-timing__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--paper-2);
}

.page-contact .pc-timing__row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 6px 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--paper-2);
}

.page-contact .pc-timing__code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--net);
}

.page-contact .pc-timing__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .pc-timing__desc {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-ink);
}

.page-contact .pc-timing__val {
  grid-column: 2;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--ink);
  white-space: nowrap;
}

.page-contact .pc-timing .seal-note {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 03 校核合作与资料互换 ---------- */
.page-contact .pc-review__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .pc-review__item {
  padding: clamp(20px, 2.4vw, 30px);
  border: var(--bw) solid var(--ink);
  border-left: var(--bw) solid var(--net);
  background: var(--night-2);
}

.page-contact .pc-review__item:last-child {
  border-left-color: var(--blue);
}

.page-contact .pc-review__kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .pc-review__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .pc-review__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pc-dim);
}

.page-contact .pc-review__bounds {
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-review__bounds li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .pc-review__bounds li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--red);
}

/* ---------- 04 通信方式与备案信息 ---------- */
.page-contact .pc-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 42px);
  align-items: start;
}

.page-contact .pc-reach__figure {
  margin: 0;
  border: var(--bw) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--night);
}

.page-contact .pc-reach__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-reach__list {
  margin: 0;
}

.page-contact .pc-reach__row {
  padding: 18px 0;
  border-bottom: 1px solid var(--pc-rule-dark);
}

.page-contact .pc-reach__row:first-child {
  border-top: 1px solid var(--pc-rule-dark);
}

.page-contact .pc-reach__key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .pc-reach__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.1vw, 23px);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .pc-reach__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-dim);
}

/* ---------- 05 引用与转载 ---------- */
.page-contact .pc-cite__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .pc-cite__col {
  padding: clamp(18px, 2.2vw, 26px);
  border-top: var(--bw) solid var(--ink);
  background: rgba(224, 214, 192, .38);
}

.page-contact .pc-cite__title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-contact .pc-cite__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-cite__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-ink);
}

.page-contact .pc-cite__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  background: var(--ink);
}

.page-contact .pc-cite__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-ink);
}

.page-contact .pc-cite .seal-note {
  margin-top: clamp(24px, 3.4vw, 40px);
}

/* ---------- 备案横条 ---------- */
.page-contact .pc-filing {
  background: var(--ink);
  border-top: var(--bw) solid var(--blue);
  padding: 18px 0;
}

.page-contact .pc-filing__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--pc-dim);
}

.page-contact .pc-filing__key {
  color: var(--muted);
}

.page-contact .pc-filing__val {
  color: var(--white);
}

@media (min-width: 760px) {
  .page-contact .pc-routes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-timing__row {
    grid-template-columns: 26px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 6px 22px;
  }

  .page-contact .pc-timing__val {
    grid-column: 3;
    grid-row: 1;
    margin-top: 0;
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-review__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-reach__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-contact .pc-cite__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.35fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-index__link {
    transition: none;
  }
}
<<<END>>>