.page-contact{
  --fc-gap: clamp(22px, 4vw, 52px);
  --fc-pad: clamp(18px, 2.6vw, 30px);
  background: var(--bo-coal);
  color: var(--bo-white);
  overflow-x: hidden;
}

.page-contact .bo-breadcrumb{
  max-width: var(--bo-max);
  margin: 18px auto 0;
  padding-inline: var(--bo-gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--bo-font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--bo-muted);
}
.page-contact .bo-breadcrumb a{
  color: var(--bo-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-contact .bo-breadcrumb a:hover,
.page-contact .bo-breadcrumb a:focus-visible{
  color: var(--bo-lime);
  border-bottom-color: var(--bo-lime);
}

/* ---------- 首屏 ---------- */
.page-contact .fc-hero{
  padding-top: clamp(22px, 3.4vw, 46px);
}
.page-contact .fc-hero__grid{
  display: grid;
  gap: var(--fc-gap);
  align-items: end;
}
.page-contact .fc-hero__title{
  font-size: clamp(2rem, 8.4vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
}
.page-contact .fc-hero__lede{
  max-width: 46ch;
  color: var(--bo-muted);
}
.page-contact .fc-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-contact .fc-hero__figure{
  margin: 0;
  position: relative;
  border: 1px solid var(--bo-line);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--bo-ink);
}
.page-contact .fc-hero__figure .bo-figure__img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .fc-hero__figure .bo-figure__cap{
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  margin: 0;
  padding: 10px 14px;
  background: rgba(14, 20, 18, .78);
  color: var(--bo-white);
  font-size: .78rem;
  letter-spacing: .02em;
}

/* ---------- 三格分流条 ---------- */
.page-contact .fc-routing{
  border-top: 1px solid var(--bo-line);
}
.page-contact .fc-section__title{
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0;
}
.page-contact .fc-routes{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .fc-route a{
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no t"
    "no d";
  column-gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--bo-line);
  background: rgba(18, 53, 43, .42);
  color: var(--bo-white);
  text-decoration: none;
  transition: background .22s ease, border-color .22s ease, color .22s ease;
}
.page-contact .fc-route a:hover,
.page-contact .fc-route a:focus-visible{
  background: var(--bo-orange);
  border-color: var(--bo-orange);
  color: var(--bo-coal);
}
.page-contact .fc-route__no{
  grid-area: no;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--bo-lime);
}
.page-contact .fc-route a:hover .fc-route__no,
.page-contact .fc-route a:focus-visible .fc-route__no{
  color: var(--bo-coal);
}
.page-contact .fc-route__t{
  grid-area: t;
  font-family: var(--bo-font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
}
.page-contact .fc-route__d{
  grid-area: d;
  font-size: .84rem;
  color: var(--bo-muted);
  margin-top: 3px;
}
.page-contact .fc-route a:hover .fc-route__d,
.page-contact .fc-route a:focus-visible .fc-route__d{
  color: rgba(14, 20, 18, .74);
}

/* ---------- 三类问题 ---------- */
.page-contact .fc-channels__head{
  max-width: 62ch;
}
.page-contact .fc-channels__lede{
  color: var(--bo-muted);
  margin-top: 14px;
}
.page-contact .fc-channels__grid{
  display: grid;
  gap: var(--fc-gap);
  margin-top: 30px;
}
.page-contact .fc-channels__list{
  display: grid;
  gap: 16px;
}
.page-contact .fc-channel{
  padding: var(--fc-pad);
  background: var(--bo-ink);
  border: 1px solid var(--bo-line);
  scroll-margin-top: calc(var(--bo-topbar-h) + 24px);
  transition: border-color .24s ease, background .24s ease;
}
.page-contact .fc-channel:target{
  border-color: var(--bo-orange);
  background: #163f33;
}
.page-contact .fc-channel__no{
  font-size: 1.5rem;
  line-height: 1;
  color: var(--bo-amber);
  margin: 0 0 10px;
}
.page-contact .fc-channel:target .fc-channel__no{
  color: var(--bo-orange);
}
.page-contact .fc-channel__title{
  font-family: var(--bo-font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}
.page-contact .fc-channel__text{
  margin: 0 0 16px;
  font-size: .95rem;
  line-height: 1.75;
  color: #cfd9d5;
}
.page-contact .fc-channel__text a{
  color: var(--bo-lime);
  text-decoration: none;
  border-bottom: 1px solid var(--bo-lime);
}
.page-contact .fc-channel__need{
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--bo-line);
  font-size: .88rem;
  line-height: 1.7;
  color: var(--bo-muted);
}
.page-contact .fc-channel__needtag{
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  font-family: var(--bo-font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--bo-coal);
  background: var(--bo-lime);
}
.page-contact .fc-channels__side{
  align-self: start;
}
.page-contact .fc-channels__figure{
  margin: 0;
  border: 1px solid var(--bo-line);
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bo-ink);
  position: relative;
}
.page-contact .fc-channels__figure .bo-figure__img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .fc-channels__figure .bo-figure__cap{
  margin: 0;
  padding: 12px 16px;
  background: var(--bo-ink);
  color: var(--bo-muted);
  font-size: .8rem;
  line-height: 1.6;
  border-top: 1px solid var(--bo-line);
}

/* ---------- 设备与版本 ---------- */
.page-contact .fc-fields__grid{
  display: grid;
  gap: var(--fc-gap);
}
.page-contact .fc-fields__intro{
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--bo-muted);
  font-size: .96rem;
  line-height: 1.75;
}
.page-contact .fc-form{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--bo-line);
}
.page-contact .fc-form__row{
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--bo-line);
}
.page-contact .fc-form__label{
  font-family: var(--bo-font-display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .02em;
  color: var(--bo-white);
}
.page-contact .fc-form__hint{
  font-size: .9rem;
  line-height: 1.65;
  color: var(--bo-muted);
}
.page-contact .fc-fields__note{
  padding: var(--fc-pad);
  background: var(--bo-ink);
  border: 1px solid var(--bo-line);
}
.page-contact .fc-fields__notetext{
  margin: 14px 0 0;
  font-size: .95rem;
  line-height: 1.8;
  color: #cfd9d5;
}
.page-contact .fc-fields__facts{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .fc-fields__facts li{
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--bo-line);
  font-size: .88rem;
  line-height: 1.65;
  color: var(--bo-muted);
}
.page-contact .fc-facts__num{
  font-size: 1.7rem;
  line-height: 1;
  color: var(--bo-lime);
}

/* ---------- 联系方式 ---------- */
.page-contact .fc-contact{
  border-top: 1px solid var(--bo-line);
}
.page-contact .fc-contact__grid{
  display: grid;
  gap: var(--fc-gap);
  align-items: start;
}
.page-contact .fc-contact__text{
  margin: 16px 0 0;
  max-width: 44ch;
  color: var(--bo-muted);
  font-size: .96rem;
  line-height: 1.8;
}
.page-contact .fc-contact__fine{
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--bo-muted);
}
.page-contact .fc-contact__fine a{
  color: var(--bo-lime);
  text-decoration: none;
  border-bottom: 1px solid var(--bo-lime);
}
.page-contact .fc-contact__card{
  padding: var(--fc-pad);
  background: var(--bo-paper);
  border: 1px solid var(--bo-paper);
  color: var(--bo-coal);
}
.page-contact .fc-contact__list{
  margin: 0;
  display: grid;
  gap: 0;
}
.page-contact .fc-contact__item{
  padding: 16px 0;
  border-bottom: 1px solid rgba(14, 20, 18, .18);
}
.page-contact .fc-contact__item:first-child{
  padding-top: 0;
}
.page-contact .fc-contact__item:last-child{
  border-bottom: 0;
}
.page-contact .fc-contact__item dt{
  font-family: var(--bo-font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: #4d5c55;
  margin-bottom: 7px;
}
.page-contact .fc-contact__item dd{
  margin: 0;
}
.page-contact .fc-contact__value{
  font-family: var(--bo-font-mono);
  font-size: clamp(1rem, 4.2vw, 1.16rem);
  letter-spacing: -0.01em;
  color: var(--bo-coal);
  word-break: break-all;
}
.page-contact .fc-contact__addr{
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--bo-coal);
}
.page-contact .fc-contact__hours{
  margin: 20px 0 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--bo-ink);
  color: var(--bo-lime);
  font-family: var(--bo-font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
}
.page-contact .fc-contact__dot{
  width: 8px;
  height: 8px;
  background: var(--bo-orange);
  flex: none;
}

/* ---------- 处理流程 ---------- */
.page-contact .fc-steps{
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-contact .fc-step{
  padding: 20px 0;
  border-top: 1px solid var(--bo-line);
}
.page-contact .fc-step__no{
  display: block;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--bo-lime);
  margin-bottom: 10px;
}
.page-contact .fc-step__title{
  font-family: var(--bo-font-display);
  font-size: 1.06rem;
  font-weight: 700;
  margin: 0 0 8px;
}
.page-contact .fc-step__text{
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--bo-muted);
}

/* ---------- 合作协作 ---------- */
.page-contact .fc-coop__inner{
  padding: clamp(24px, 4vw, 54px);
  background: var(--bo-ink);
  border: 1px solid var(--bo-line);
}
.page-contact .fc-coop__title{
  font-size: clamp(1.25rem, 4.2vw, 1.75rem);
  line-height: 1.2;
  margin: 12px 0 16px;
}
.page-contact .fc-coop__body{
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: .96rem;
  line-height: 1.85;
  color: #cfd9d5;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px){
  .page-contact .fc-form__row{
    grid-template-columns: 148px 1fr;
    align-items: baseline;
    gap: 22px;
    padding: 16px 0;
  }
}

@media (min-width: 900px){
  .page-contact .fc-hero__grid{
    grid-template-columns: 5fr 7fr;
    gap: clamp(28px, 4vw, 64px);
  }
  .page-contact .fc-routes{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .fc-channels__grid{
    grid-template-columns: 7fr 5fr;
    gap: clamp(24px, 3vw, 44px);
  }
  .page-contact .fc-channels__side{
    position: sticky;
    top: calc(var(--bo-topbar-h) + 28px);
  }
  .page-contact .fc-fields__grid{
    grid-template-columns: 7fr 5fr;
    gap: clamp(24px, 3vw, 48px);
  }
  .page-contact .fc-contact__grid{
    grid-template-columns: 5fr 7fr;
    gap: clamp(24px, 3vw, 56px);
  }
  .page-contact .fc-steps{
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .fc-step{
    padding: 22px;
    border-top: 1px solid var(--bo-line);
    border-right: 1px solid var(--bo-line);
  }
  .page-contact .fc-step:first-child{
    padding-left: 0;
  }
  .page-contact .fc-step:last-child{
    border-right: 0;
    padding-right: 0;
  }
}

@media (min-width: 1180px){
  .page-contact .fc-hero__title{
    font-size: 3.5rem;
  }
}
<<<END>>>