/* ===== 联系我们 · 页面专属样式 ===== */
.page-contact{
  --pc-gap: 26px;
  --pc-rail-ratio: 0.94;
  --pc-main-ratio: 1.06;
}

.page-contact .kicker{
  display: block;
  font-family: var(--rb-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-top{
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 48px) 0 56px;
  color: #fff;
  background:
    radial-gradient(125% 95% at 4% -10%, rgba(200, 16, 46, .46) 0%, rgba(200, 16, 46, 0) 58%),
    radial-gradient(115% 90% at 100% 108%, rgba(30, 90, 255, .46) 0%, rgba(30, 90, 255, 0) 62%),
    var(--rb-ink);
}

.page-contact .contact-top::after{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(101deg, rgba(255, 255, 255, .05) 0 1px, transparent 1px 100%),
    linear-gradient(101deg, transparent 0 46%, rgba(255, 255, 255, .045) 46% 46.2%, transparent 46.2% 100%);
  background-size: 100% 100%, 100% 100%;
}

.page-contact .contact-top__grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

.page-contact .contact-top .breadcrumbs{
  margin: 0 0 26px;
  padding: 0;
  font-family: var(--rb-mono);
  font-size: .75rem;
  letter-spacing: .08em;
}

.page-contact .contact-top .breadcrumbs ol{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, .55);
}

.page-contact .contact-top .breadcrumbs li::after{
  content: "/";
  margin-left: 10px;
  color: rgba(255, 255, 255, .3);
}

.page-contact .contact-top .breadcrumbs li:last-child::after{ content: ""; }

.page-contact .contact-top .breadcrumbs a{
  color: rgba(255, 255, 255, .78);
  text-decoration: none;
}

.page-contact .contact-top .breadcrumbs a:hover{ color: var(--rb-neon); }

.page-contact .contact-top .kicker{ color: var(--rb-neon); }

.page-contact .contact-top h1{
  margin: 0 0 20px;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 16em;
}

.page-contact .contact-top .lede{
  margin: 0;
  max-width: 40em;
  font-size: clamp(.9375rem, 2.1vw, 1.0625rem);
  line-height: 1.68;
  color: rgba(255, 255, 255, .74);
}

.page-contact .contact-top__facts{
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: .875rem;
  color: rgba(255, 255, 255, .82);
}

.page-contact .contact-top__facts li{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}

.page-contact .contact-top__facts .mono{
  min-width: 3.6em;
  font-family: var(--rb-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  color: var(--rb-neon);
}

.page-contact .contact-top__media{
  position: relative;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, .04);
}

.page-contact .contact-top__media img{
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 分栏主体 ---------- */
.page-contact .contact-desk{ background: var(--rb-paper); }

.page-contact .contact-split{
  display: grid;
  gap: 44px;
}

.page-contact .contact-axis{ display: none; }

.page-contact .col-head{
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rb-line);
}

.page-contact .col-head__num{
  font-family: var(--rb-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--rb-red);
}

.page-contact .col-head__num--blue{ color: var(--rb-blue); }

.page-contact .col-head__title{
  margin: 0;
  font-size: clamp(1.375rem, 3.6vw, 1.875rem);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.2;
  color: var(--rb-ink);
}

.page-contact .col-sub{
  margin: 0 0 28px;
  font-size: .9375rem;
  line-height: 1.66;
  color: var(--rb-grey);
  max-width: 42em;
}

/* ---------- 沟通渠道卡 ---------- */
.page-contact .channel-list{
  display: grid;
  gap: 16px;
}

.page-contact .channel{
  position: relative;
  padding: 20px 20px 20px 22px;
  background: var(--rb-white);
  border: 1px solid var(--rb-line);
  border-left: 4px solid var(--rb-grey);
  border-radius: var(--radius);
  outline: none;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .channel--red{ border-left-color: var(--rb-red); }
.page-contact .channel--blue{ border-left-color: var(--rb-blue); }
.page-contact .channel--grey{ border-left-color: var(--rb-grey); }

.page-contact .channel:hover,
.page-contact .channel:focus-visible{
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -20px rgba(16, 20, 24, .55);
}

.page-contact .channel--red:hover,
.page-contact .channel--red:focus-visible{ border-color: var(--rb-red); }

.page-contact .channel--blue:hover,
.page-contact .channel--blue:focus-visible{ border-color: var(--rb-blue); }

.page-contact .channel__top{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .channel__idx{
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--rb-grey);
}

.page-contact .channel__name{
  margin: 0;
  flex: 1 1 12em;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--rb-ink);
}

.page-contact .channel__value{
  margin: 0 0 6px;
  font-family: var(--rb-mono);
  font-size: clamp(.9375rem, 2.6vw, 1.0625rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--rb-ink);
  overflow-wrap: anywhere;
}

.page-contact .channel--red .channel__value{ color: var(--rb-red); }
.page-contact .channel--blue .channel__value{ color: var(--rb-blue); }

.page-contact .channel__hint{
  margin: 0;
  font-size: .8125rem;
  color: var(--rb-grey);
}

.page-contact .channel__grid{
  margin: 14px 0 0;
  border: 1px solid var(--rb-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rb-paper);
}

.page-contact .channel__grid img{
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .channel__detail{
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--rb-line);
  overflow: hidden;
  max-height: 30em;
  opacity: 1;
  transition: max-height .3s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease), padding-top .3s var(--ease);
}

.page-contact .channel__detail p{
  margin: 0;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--rb-grey);
}

/* ---------- 勘误清单 ---------- */
.page-contact .checklist{
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist__item{
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--rb-line);
}

.page-contact .checklist__item:first-child{ padding-top: 4px; }

.page-contact .checklist__box{
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid rgba(30, 90, 255, .5);
  border-radius: 2px;
  background: rgba(30, 90, 255, .06);
}

.page-contact .checklist__box::after{
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--rb-blue);
  border-bottom: 2px solid var(--rb-blue);
  transform: rotate(42deg);
}

.page-contact .checklist__body{
  display: block;
  min-width: 0;
  font-size: .9375rem;
  line-height: 1.6;
}

.page-contact .checklist__body strong{
  display: block;
  margin-bottom: 4px;
  font-weight: 700;
  color: var(--rb-ink);
}

.page-contact .checklist__body span{
  display: block;
  color: var(--rb-grey);
}

/* ---------- 转交提示 ---------- */
.page-contact .handoff{
  margin-top: 32px;
  padding: 22px;
  background: var(--rb-white);
  border: 1px solid var(--rb-line);
  border-top: 3px solid var(--rb-neon);
  border-radius: var(--radius);
}

.page-contact .handoff__title{
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--rb-ink);
}

.page-contact .handoff__text{
  margin: 0 0 18px;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--rb-grey);
}

.page-contact .handoff__links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partner{
  position: relative;
  background: var(--rb-ink);
  color: #fff;
  overflow: hidden;
}

.page-contact .contact-partner::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(30, 90, 255, .3) 0%, rgba(30, 90, 255, 0) 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(200, 16, 46, .26) 0%, rgba(200, 16, 46, 0) 66%);
}

.page-contact .partner-grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 38px;
}

.page-contact .partner-grid__lead .chapter-num{
  display: block;
  font-family: var(--rb-mono);
  font-size: clamp(2.6rem, 9vw, 4.4rem);
  font-weight: 800;
  line-height: .88;
  letter-spacing: -.03em;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, .18);
  transition: color .32s var(--ease);
}

.page-contact .partner-grid__lead .chapter-num[data-active="true"]{ color: var(--rb-blue); }

.page-contact .partner-grid__title{
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 4.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
}

.page-contact .partner-grid__text{
  margin: 0;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .7);
}

.page-contact .partner-grid__items{
  display: grid;
  gap: 16px;
}

.page-contact .partner-card{
  position: relative;
  padding: 24px 22px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  transition: background .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease);
}

.page-contact .partner-card::after{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
}

.page-contact .partner-card--red::after{ background: var(--rb-red); }
.page-contact .partner-card--blue::after{ background: var(--rb-blue); }
.page-contact .partner-card--neon::after{ background: var(--rb-neon); }

.page-contact .partner-card:hover{
  transform: translateY(-3px);
  background: rgba(255, 255, 255, .1);
}

.page-contact .partner-card--red:hover{ border-color: rgba(200, 16, 46, .7); }
.page-contact .partner-card--blue:hover{ border-color: rgba(30, 90, 255, .7); }
.page-contact .partner-card--neon:hover{ border-color: rgba(200, 255, 46, .6); }

.page-contact .partner-card__tag{
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--rb-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  color: var(--rb-neon);
}

.page-contact .partner-card__name{
  margin: 0 0 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-contact .partner-card p{
  margin: 0;
  font-size: .875rem;
  line-height: 1.68;
  color: rgba(255, 255, 255, .68);
}

/* ---------- 备案 ---------- */
.page-contact .contact-filing{ background: var(--rb-white); }

.page-contact .filing-grid{
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-contact .col-head--plain{ margin-bottom: 14px; }

.page-contact .filing-grid__text p{
  margin: 0;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--rb-grey);
}

.page-contact .filing-card{
  padding: 22px 24px;
  border: 1px solid var(--rb-line);
  border-left: 4px solid var(--rb-blue);
  border-radius: var(--radius);
  background: var(--rb-paper);
}

.page-contact .filing-card__label{
  display: block;
  margin-bottom: 10px;
  font-family: var(--rb-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  color: var(--rb-grey);
}

.page-contact .filing-card__value{
  margin: 0;
  font-family: var(--rb-mono);
  font-size: clamp(1rem, 2.8vw, 1.1875rem);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--rb-ink);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px){
  .page-contact .contact-top__facts{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-top__facts li{
    flex-direction: column;
    gap: 6px;
  }

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

  .page-contact .filing-grid{
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
  }
}

@media (min-width: 960px){
  .page-contact .contact-top{
    padding: calc(var(--header-h) + 76px) 0 84px;
  }

  .page-contact .contact-top__grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 60px;
    align-items: center;
  }
}

@media (min-width: 1024px){
  .page-contact .contact-split{
    grid-template-columns: minmax(0, var(--pc-rail-ratio) * 1fr) 1px minmax(0, var(--pc-main-ratio) * 1fr);
    column-gap: 46px;
  }

  .page-contact .contact-axis{
    display: block;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, rgba(90, 100, 114, 0) 0%, rgba(90, 100, 114, .45) 18%, rgba(90, 100, 114, .45) 82%, rgba(90, 100, 114, 0) 100%);
  }

  .page-contact .partner-grid{
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .partner-grid__lead{
    position: sticky;
    top: calc(var(--header-h) + 40px);
  }
}

@media (hover: hover) and (min-width: 1024px){
  .page-contact .channel__detail{
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    opacity: 0;
  }

  .page-contact .channel:hover .channel__detail,
  .page-contact .channel:focus-visible .channel__detail,
  .page-contact .channel:focus-within .channel__detail{
    max-height: 30em;
    margin-top: 14px;
    padding-top: 14px;
    opacity: 1;
  }

  .page-contact .channel::after{
    content: "";
    position: absolute;
    right: 20px;
    top: 26px;
    width: 7px;
    height: 7px;
    border-right: 2px solid var(--rb-grey);
    border-bottom: 2px solid var(--rb-grey);
    transform: rotate(45deg);
    transition: transform .24s var(--ease), border-color .24s var(--ease);
  }

  .page-contact .channel--red:hover::after,
  .page-contact .channel--red:focus-visible::after{
    border-color: var(--rb-red);
    transform: rotate(225deg);
  }

  .page-contact .channel--blue:hover::after,
  .page-contact .channel--blue:focus-visible::after{
    border-color: var(--rb-blue);
    transform: rotate(225deg);
  }

  .page-contact .channel--grey:hover::after,
  .page-contact .channel--grey:focus-visible::after{
    transform: rotate(225deg);
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .channel,
  .page-contact .channel__detail,
  .page-contact .partner-card,
  .page-contact .chapter-num,
  .page-contact .channel::after{
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .partner-card:hover{
    transform: none;
  }
}
<<<END>>>