.page-contact {
  --pc-gap: clamp(20px, 3.5vw, 44px);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  background: var(--abyss-900);
  color: var(--paper-100);
  padding: clamp(40px, 7vw, 88px) 0 clamp(36px, 6vw, 72px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    122deg,
    rgba(184, 115, 51, 0.09) 0 1px,
    transparent 1px 48px
  );
  pointer-events: none;
}

.page-contact .pc-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-hero__eyebrow {
  margin: 0 0 var(--sp-2);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--copper-300);
}

.page-contact .pc-hero__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-contact .pc-hero__lede {
  margin: 0 0 var(--sp-4);
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--paper-70);
}

.page-contact .pc-hero__quick {
  list-style: none;
  margin: 0;
  padding: var(--sp-3) 0 0;
  border-top: 1px solid var(--rule-dark);
  display: grid;
  gap: var(--sp-3);
}

.page-contact .pc-hero__quick-item {
  display: grid;
  gap: 4px;
}

.page-contact .pc-hero__quick-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--paper-50);
}

.page-contact .pc-hero__quick-value {
  font-size: 15px;
  line-height: 1.5;
  color: var(--copper-300);
  overflow-wrap: anywhere;
}

/* 首屏锚点导航（深色底） */
.page-contact .anchor-nav {
  padding-top: var(--sp-3);
  border-top: 2px solid var(--copper-500);
}

.page-contact .anchor-nav__title {
  margin: 0 0 var(--sp-2);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--paper-50);
}

.page-contact .anchor-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .anchor-nav__link {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper-70);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .anchor-nav__link:hover,
.page-contact .anchor-nav__link:focus-visible {
  color: var(--copper-300);
  border-bottom-color: var(--copper-300);
}

.page-contact .anchor-nav__link[aria-current="true"] {
  color: var(--copper-300);
  border-bottom-color: var(--copper-500);
}

@media (min-width: 960px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1fr) 292px;
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .pc-hero__side {
    position: sticky;
    top: 120px;
  }

  .page-contact .pc-hero__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-4);
  }
}

/* ---------- 章节标题体系 ---------- */
.page-contact .pc-head {
  display: grid;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}

.page-contact .pc-head__num {
  margin: 0;
  font-size: clamp(38px, 8vw, 72px);
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--copper-500);
}

.page-contact .pc-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.24;
  color: var(--ink-900);
}

.page-contact .pc-head__lede {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink-70);
}

.page-contact .pc-head--dark .pc-head__num {
  color: var(--copper-300);
}

.page-contact .pc-head--dark .pc-head__title {
  color: var(--paper-100);
}

.page-contact .pc-head--dark .pc-head__lede {
  color: var(--paper-70);
}

@media (min-width: 900px) {
  .page-contact .pc-head {
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: var(--sp-4);
    row-gap: var(--sp-2);
    align-items: start;
  }

  .page-contact .pc-head__num {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  .page-contact .pc-head__title,
  .page-contact .pc-head__lede {
    grid-column: 2;
  }
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .pc-channel__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .pc-channel__cards {
  display: grid;
  gap: var(--sp-2);
}

.page-contact .pc-cc {
  border-left: 3px solid var(--copper-500);
  transition: transform var(--dur) ease, border-left-color var(--dur) ease;
}

.page-contact .pc-cc:hover {
  transform: translateY(-2px);
  border-left-color: var(--copper-300);
}

.page-contact .pc-cc:focus-within {
  outline: 2px solid var(--copper-500);
  outline-offset: 2px;
}

.page-contact .pc-cc__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--abyss-600);
}

.page-contact .pc-cc__value {
  margin: 0 0 10px;
  font-size: clamp(17px, 2.3vw, 22px);
  line-height: 1.42;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-contact .pc-cc__value--addr {
  font-size: 15px;
  line-height: 1.72;
}

.page-contact .pc-cc__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-70);
}

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

@media (min-width: 960px) {
  .page-contact .pc-channel__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
}

/* ---------- 02 查证请求 ---------- */
.page-contact .pc-request__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .pc-sub {
  margin: 0 0 var(--sp-3);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--abyss-600);
}

.page-contact .pc-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-fields__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: var(--sp-2);
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

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

.page-contact .pc-fields__idx {
  font-size: 13px;
  color: var(--copper-500);
}

.page-contact .pc-fields__text {
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-900);
}

.page-contact .pc-sample {
  position: relative;
  background: var(--abyss-900);
  color: var(--paper-100);
  padding: var(--sp-3);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
}

.page-contact .pc-sample__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--copper-300);
}

.page-contact .pc-sample__subject {
  margin: 0 0 var(--sp-3);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--rule-dark);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper-100);
  overflow-wrap: anywhere;
}

.page-contact .pc-sample__subject + .pc-sample__label {
  margin-top: var(--sp-2);
}

.page-contact .pc-sample__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper-70);
  overflow-wrap: anywhere;
}

@media (min-width: 900px) {
  .page-contact .pc-request__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
}

/* ---------- 03 合作流程 ---------- */
.page-contact .pc-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-4);
}

.page-contact .pc-steps::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--rule-strong);
}

.page-contact .pc-step {
  position: relative;
  padding-left: 36px;
}

.page-contact .pc-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  border: 2px solid var(--copper-500);
  background: var(--paper-100);
  transition: background var(--dur) ease;
}

.page-contact .pc-step:hover::before {
  background: var(--copper-500);
}

.page-contact .pc-step__meta {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--abyss-600);
}

.page-contact .pc-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.35;
  color: var(--ink-900);
}

.page-contact .pc-step__text {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-70);
}

@media (min-width: 900px) {
  .page-contact .pc-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 5vw, 64px);
    row-gap: var(--sp-5);
  }

  .page-contact .pc-steps::before {
    display: none;
  }

  .page-contact .pc-step {
    padding-left: 36px;
    border-top: 1px solid var(--rule-strong);
    padding-top: var(--sp-3);
  }

  .page-contact .pc-step::before {
    top: var(--sp-3);
  }
}

/* ---------- 04 回复节奏 ---------- */
.page-contact .pc-stats {
  list-style: none;
  margin: 0 0 var(--sp-4);
  padding: 0;
  display: grid;
  gap: var(--sp-2);
}

.page-contact .pc-stat {
  background: var(--paper-100);
  border-top: 3px solid var(--abyss-700);
  padding: var(--sp-3);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
  transition: transform var(--dur) ease, border-top-color var(--dur) ease;
}

.page-contact .pc-stat:hover {
  transform: translateY(-2px);
  border-top-color: var(--copper-500);
}

.page-contact .pc-stat__value {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--abyss-800);
  overflow-wrap: anywhere;
}

.page-contact .pc-stat__unit {
  margin: 6px 0 12px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--copper-500);
}

.page-contact .pc-stat__label {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink-70);
}

.page-contact .pc-response__note {
  max-width: 78ch;
}

.page-contact .pc-response__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
}

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

/* ---------- 05 属地与备案 ---------- */
.page-contact .pc-locale__grid {
  display: grid;
  gap: var(--sp-4);
}

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

.page-contact .pc-locale__list {
  margin: 0;
  display: grid;
}

.page-contact .pc-locale__row {
  display: grid;
  gap: 6px;
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--rule-dark);
}

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

.page-contact .pc-locale__row dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--copper-300);
}

.page-contact .pc-locale__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-100);
  overflow-wrap: anywhere;
}

@media (min-width: 900px) {
  .page-contact .pc-locale__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
  }
}

/* ---------- 06 合作生态 ---------- */
.page-contact .pc-eco__grid {
  display: grid;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
}

.page-contact .pc-eco-card {
  border-left: 3px solid var(--abyss-600);
  transition: border-left-color var(--dur) ease, transform var(--dur) ease;
}

.page-contact .pc-eco-card:hover {
  border-left-color: var(--copper-500);
  transform: translateY(-2px);
}

.page-contact .pc-eco-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.36;
  color: var(--ink-900);
}

.page-contact .pc-eco-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-contact .pc-next {
  border-top: 1px solid var(--rule-strong);
  padding-top: var(--sp-4);
}

.page-contact .pc-next__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-contact .pc-next__lede {
  margin: 0 0 var(--sp-3);
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-contact .pc-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
}

@media (min-width: 620px) {
  .page-contact .pc-eco__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-3);
  }

  .page-contact .pc-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-2) var(--sp-3);
  }
}

@media (min-width: 1100px) {
  .page-contact .pc-next__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>