.page-contact {
  --pc-gap: clamp(18px, 3vw, 32px);
  --pc-pad: clamp(18px, 5vw, 64px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact .pc-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: var(--pc-pad);
}

/* ---------- 顶部通栏影像 ---------- */
.page-contact .pc-hero {
  position: relative;
  margin: 0;
  background: var(--night);
}

.page-contact .pc-hero img {
  display: block;
  width: 100%;
  height: clamp(210px, 30vw, 400px);
  object-fit: cover;
  object-position: center 62%;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: clamp(210px, 30vw, 400px);
  background: linear-gradient(
    to bottom,
    rgba(22, 39, 60, 0.36) 0%,
    rgba(22, 39, 60, 0) 46%,
    rgba(247, 245, 240, 0.94) 100%
  );
  pointer-events: none;
}

.page-contact .pc-hero__cap {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 11px var(--pc-pad);
  background: var(--paper);
  border-bottom: 1px solid rgba(140, 148, 155, 0.55);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

/* ---------- 信笺抬头 ---------- */
.page-contact .pc-head {
  padding-top: clamp(30px, 5vw, 62px);
  padding-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid rgba(140, 148, 155, 0.55);
}

.page-contact .pc-crumb {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-contact .pc-crumb a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .pc-crumb__sep {
  margin: 0 8px;
  color: var(--stone);
}

.page-contact .pc-kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 12px;
  background: var(--sand);
  border: 1px solid var(--gold);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.page-contact h1 {
  margin: 0 0 20px;
  max-width: 20ch;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.012em;
}

.page-contact .pc-lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.85;
}

/* ---------- 章节通用 ---------- */
.page-contact .pc-sec {
  padding-block: clamp(38px, 5.6vw, 74px);
}

.page-contact .pc-sec--sand {
  background: var(--sand);
}

.page-contact .pc-sec--cyan {
  background: var(--cyan);
}

.page-contact .pc-sec--night {
  background: var(--night);
  color: var(--paper);
}

.page-contact .pc-sec__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  margin: 0 0 clamp(22px, 3.2vw, 38px);
  padding-bottom: 13px;
  border-bottom: 1.5px solid var(--ink);
}

.page-contact .pc-sec--night .pc-sec__head {
  border-bottom-color: var(--paper);
}

.page-contact .pc-sec__num {
  flex: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1;
  color: var(--signal);
}

.page-contact .pc-sec--night .pc-sec__num {
  color: var(--gold);
}

.page-contact .pc-sec__t {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 29px);
  line-height: 1.3;
  letter-spacing: -0.005em;
}

/* ---------- 01 渠道卡 ---------- */
.page-contact .pc-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 30px);
}

.page-contact .pc-ch {
  display: flex;
  flex-direction: column;
  padding: 24px 22px 22px;
  background: var(--paper);
  border: 1px solid var(--gold);
  box-shadow: 7px 7px 0 var(--sand);
}

.page-contact .pc-ch__num {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
}

.page-contact .pc-ch__t {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.page-contact .pc-ch__v {
  margin: 12px 0 14px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.35;
  word-break: break-word;
}

.page-contact .pc-ch__v a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  transition: color var(--ease), border-color var(--ease);
}

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

.page-contact .pc-ch__v--addr {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.page-contact .pc-ch__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 02 咨询范围 ---------- */
.page-contact .pc-scope {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 34px);
}

.page-contact .pc-scope__item {
  padding-left: 18px;
  border-left: 3px solid var(--cyan);
}

.page-contact .pc-scope__item h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 17px;
}

.page-contact .pc-scope__item p {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.78;
}

/* ---------- 03 合作共建 ---------- */
.page-contact .pc-co__lead {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
  max-width: 64ch;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .pc-steps__i {
  display: flex;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px dashed rgba(17, 22, 28, 0.35);
}

.page-contact .pc-steps__n {
  flex: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.25;
  color: var(--cyan-deep);
}

.page-contact .pc-steps__i h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 16.5px;
}

.page-contact .pc-steps__i p {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.75;
}

.page-contact .pc-co__more {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.8;
}

.page-contact .pc-co__more a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

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

/* ---------- 04 新疆路径 ---------- */
.page-contact .pc-xj {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 28px);
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-contact .pc-xj__p {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .pc-xj__link {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(17, 22, 28, 0.3);
  font-size: 14.6px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .pc-xj__link a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  box-shadow: inset 0 -0.55em 0 rgba(247, 245, 240, 0.66);
}

.page-contact .pc-xj__link a:hover,
.page-contact .pc-xj__link a:focus-visible {
  box-shadow: inset 0 -0.85em 0 rgba(247, 245, 240, 0.9);
}

/* ---------- 05 准备清单 ---------- */
.page-contact .pc-prep {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 44px);
  align-items: start;
}

.page-contact .pc-prep__lead {
  margin: 0 0 18px;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.8;
}

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

.page-contact .pc-list > li + li {
  border-top: 1px dotted rgba(140, 148, 155, 0.7);
}

.page-contact .pc-check {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 13px 2px;
  cursor: pointer;
}

.page-contact .pc-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .pc-check__box {
  flex: none;
  position: relative;
  margin-top: 3px;
  width: 19px;
  height: 19px;
  border: 1.5px solid var(--ink);
  background: var(--paper);
  transition: background var(--ease), border-color var(--ease);
}

.page-contact .pc-check input:checked + .pc-check__box {
  background: var(--cyan);
  border-color: var(--cyan-deep);
}

.page-contact .pc-check input:checked + .pc-check__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-contact .pc-check input:focus-visible + .pc-check__box {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.page-contact .pc-check__t {
  font-size: 14.6px;
  line-height: 1.7;
}

.page-contact .pc-check__t b {
  font-weight: 700;
}

.page-contact .pc-prep__fig {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--sand);
}

.page-contact .pc-prep__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .pc-prep__fig figcaption {
  padding: 11px 15px;
  border-top: 1px solid var(--ink);
  background: var(--paper);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

/* ---------- 06 响应节奏 ---------- */
.page-contact .pc-rp {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-contact .pc-rp__i {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(247, 245, 240, 0.28);
}

.page-contact .pc-rp__n {
  flex: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  color: var(--gold);
}

.page-contact .pc-rp__i p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 245, 240, 0.9);
}

.page-contact .pc-rp__foot {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.8;
  color: rgba(247, 245, 240, 0.86);
}

.page-contact .pc-rp__foot a {
  color: var(--paper);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
}

.page-contact .pc-rp__foot a:hover,
.page-contact .pc-rp__foot a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-scope {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-xj {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-prep {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  }

  .page-contact .pc-rp {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-contact .pc-ch {
    box-shadow: 5px 5px 0 var(--sand);
  }

  .page-contact .pc-sec__head {
    gap: 12px;
  }

  .page-contact .pc-ch__v {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-ch__v a,
  .page-contact .pc-check__box {
    transition: none;
  }
}