.page-contact{
  --pc-rail: 168px;
  --pc-gap: clamp(20px, 3.5vw, 44px);
  --pc-ink: #12141C;
  --pc-ink-soft: #4C5059;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero{
  padding-top: clamp(22px, 4vw, 46px);
}
.page-contact .pc-hero .breadcrumbs{
  margin-bottom: clamp(22px, 4vw, 40px);
}
.page-contact .pc-hero__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}
.page-contact .pc-hero__body{
  min-width: 0;
}

.page-contact .pc-hero__rail{
  padding-left: 16px;
  border-left: 2px solid var(--red);
}
.page-contact .pc-hero__rail .eyebrow{
  margin: 0 0 10px;
  color: var(--gold);
}
.page-contact .pc-hero__window{
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(26px, 5.4vw, 38px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--gold-2);
}
.page-contact .pc-hero__window i{
  font-style: normal;
  padding: 0 .1em;
  color: var(--red);
}
.page-contact .pc-hero__window-note{
  margin: 10px 0 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .26em;
  color: var(--text-3);
}

.page-contact .pc-hero__title{
  margin: 0 0 20px;
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: clamp(40px, 8.6vw, 82px);
  line-height: .96;
  letter-spacing: .01em;
  color: var(--text);
}
.page-contact .pc-hero__title::after{
  content: "";
  display: block;
  width: 76px;
  height: 4px;
  margin-top: 20px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--red), var(--gold));
}
.page-contact .pc-hero__lead{
  max-width: 62ch;
  margin: 0 0 24px;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.88;
  color: var(--text-2);
}
.page-contact .pc-hero__tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

/* ---------- 首图 ---------- */
.page-contact .pc-visual{
  padding-top: 0;
}
.page-contact .media-frame__inner img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 三条通道 ---------- */
.page-contact .pc-channels{
  padding-bottom: clamp(48px, 8vw, 104px);
}
.page-contact .pc-channel-list{
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-contact .pc-channel{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: clamp(20px, 3vw, 32px) 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .pc-channel__body{
  min-width: 0;
}
.page-contact .pc-channel__idx{
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--red);
}
.page-contact .pc-channel__name{
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .24em;
  color: var(--text-3);
}
.page-contact .pc-channel__value{
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: clamp(17px, 2.3vw, 25px);
  line-height: 1.45;
  color: var(--text);
  overflow-wrap: anywhere;
}
.page-contact .pc-channel--mail .pc-channel__value{
  color: var(--gold-2);
}
.page-contact .pc-channel__value--addr{
  font-family: var(--f-sans);
  font-size: clamp(15px, 1.85vw, 20px);
  line-height: 1.65;
  letter-spacing: .01em;
}
.page-contact .pc-channel__desc{
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text-2);
}

/* ---------- 宣纸米说明区 ---------- */
.page-contact .section--paper{
  color: var(--pc-ink);
}
.page-contact .pc-brief{
  padding-top: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(48px, 8vw, 96px);
}
.page-contact .pc-brief__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 54px);
}
.page-contact .pc-brief__text{
  min-width: 0;
}
.page-contact .pc-brief .eyebrow{
  margin: 0 0 12px;
  color: var(--red);
}
.page-contact .pc-brief__title{
  margin: 0;
  font-family: var(--f-serif);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--pc-ink);
}
.page-contact .pc-brief__list{
  display: grid;
  gap: 0;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-brief__list li{
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(18, 20, 28, .14);
}
.page-contact .pc-brief__list li:last-child{
  border-bottom: 1px solid rgba(18, 20, 28, .14);
}
.page-contact .pc-brief__n{
  padding-top: 3px;
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--red);
}
.page-contact .pc-brief__list strong{
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--pc-ink);
}
.page-contact .pc-brief__list p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--pc-ink-soft);
}
.page-contact .pc-brief__figure{
  margin: 0;
}
.page-contact .pc-brief .media-frame__cap{
  color: var(--pc-ink-soft);
}

/* ---------- 站内先行阅读 ---------- */
.page-contact .pc-routes{
  padding-bottom: clamp(48px, 8vw, 96px);
}
.page-contact .pc-route-list{
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-route{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--ink-2);
  text-decoration: none;
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.page-contact .pc-route:hover,
.page-contact .pc-route:focus-visible{
  border-color: var(--line-2);
  background: var(--ink-3);
  transform: translateY(-2px);
}
.page-contact .pc-route__idx{
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}
.page-contact .pc-route__body{
  min-width: 0;
}
.page-contact .pc-route__title{
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.page-contact .pc-route__desc{
  display: block;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--text-2);
}
.page-contact .pc-route__arrow{
  font-family: var(--f-mono);
  font-size: 16px;
  color: var(--gold);
  transition: transform .3s var(--ease);
}
.page-contact .pc-route:hover .pc-route__arrow{
  transform: translateX(4px);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-signoff{
  padding-bottom: clamp(56px, 9vw, 104px);
}
.page-contact .pc-signoff__line{
  max-width: 68ch;
  margin: 0;
  padding-left: clamp(16px, 2.5vw, 28px);
  border-left: 3px solid var(--red);
  font-family: var(--f-serif);
  font-size: clamp(17px, 2.3vw, 25px);
  line-height: 1.72;
  color: var(--text);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 880px){
  .page-contact .pc-hero__grid{
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    gap: clamp(28px, 5vw, 72px);
  }
}

@media (min-width: 760px){
  .page-contact .pc-channel{
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 0 28px;
  }
  .page-contact .pc-channel__idx{
    padding-top: 2px;
  }
  .page-contact .pc-route-list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px){
  .page-contact .pc-brief__grid{
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .82fr);
    align-items: start;
  }
}

@media (min-width: 1280px){
  .page-contact .pc-channel-list{
    padding-left: 88px;
  }
}
<<<END>>>