.page-contact{
  --ct-rule: 1px solid var(--ba-line);
  --ct-gap: clamp(24px, 4vw, 56px);
  background: var(--ba-night);
  color: var(--ba-paper);
}

.page-contact .ct-section{
  position: relative;
  padding: clamp(46px, 7vw, 92px) 0;
  border-top: var(--ba-line-soft);
}

.page-contact .ct-h2{
  margin: 12px 0 0;
  font-family: var(--ba-font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -.005em;
  color: var(--ba-paper);
}

.page-contact .ct-body{
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ba-steel);
}

/* ============ 首屏 ============ */

.page-contact .ct-hero{
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 58px) 0 clamp(36px, 6vw, 78px);
}

.page-contact .ct-hero::before{
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: min(640px, 88vw);
  height: min(640px, 88vw);
  background: linear-gradient(148deg, rgba(53,211,199,.15), rgba(230,184,74,.10) 50%, rgba(139,30,45,.10) 76%, transparent 88%);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  transform: rotate(-7deg);
  pointer-events: none;
  z-index: 0;
}

.page-contact .ct-hero::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 34%;
  height: 2px;
  background: linear-gradient(90deg, var(--ba-gold), rgba(230,184,74,0) 100%);
  z-index: 0;
}

.page-contact .ct-hero__inner{
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-contact .ct-hero .ba-breadcrumb{
  margin: 0 0 20px;
}

.page-contact .ct-hero__title{
  margin: 12px 0 0;
  max-width: 16ch;
  font-family: var(--ba-font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.2vw, 66px);
  line-height: 1.05;
  letter-spacing: -.012em;
  color: var(--ba-paper);
}

.page-contact .ct-hero__mark{
  color: var(--ba-gold-hi);
}

.page-contact .ct-hero__lede{
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ba-steel);
}

.page-contact .ct-hero__actions{
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .ct-hero__media{
  position: relative;
}

.page-contact .ct-hero__figure{
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ba-panel);
  border: var(--ba-line-soft);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 14% 100%, 0 90%);
}

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

.page-contact .ct-hero__media::after{
  content: "";
  position: absolute;
  left: 2px;
  bottom: 12px;
  width: 44%;
  height: 2px;
  background: linear-gradient(90deg, var(--ba-cyan), var(--ba-gold) 58%, rgba(230,184,74,0));
  pointer-events: none;
}

@media (min-width: 920px){
  .page-contact .ct-hero__inner{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(36px, 5vw, 76px);
  }
}

/* ============ 客服与内容纠错 ============ */

.page-contact .ct-split{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .ct-mailbox{
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: var(--ba-panel);
  border: var(--ba-line-soft);
  border-left: 3px solid var(--ba-gold);
  border-radius: var(--ba-radius);
  box-shadow: var(--ba-shadow);
}

.page-contact .ct-mailbox__label,
.page-contact .ct-templates__label,
.page-contact .ct-addr__label,
.page-contact .ct-links__label{
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ba-steel);
}

.page-contact .ct-mailbox__value{
  margin: 12px 0 18px;
  font-family: var(--ba-font-mono);
  font-size: clamp(16px, 2.4vw, 25px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ba-gold-hi);
  word-break: break-all;
}

.page-contact .ct-mailbox__hint{
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ba-steel);
}

.page-contact .ct-templates{
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .ct-templates__row{
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-templates__row .ba-chip{
  appearance: none;
  padding: 8px 14px;
  background: var(--ba-lift);
  color: var(--ba-paper);
  border: 1px solid var(--ba-line);
  border-radius: 999px;
  font-family: var(--ba-font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  cursor: pointer;
  transition: border-color .22s var(--ba-ease), color .22s var(--ba-ease), background-color .22s var(--ba-ease);
}

.page-contact .ct-templates__row .ba-chip:hover{
  border-color: var(--ba-gold);
  color: var(--ba-gold-hi);
  background: var(--ba-panel);
}

.page-contact .ct-templates .ba-small{
  display: block;
  margin-top: 14px;
}

@media (min-width: 960px){
  .page-contact .ct-split{
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: clamp(36px, 5vw, 84px);
  }

  .page-contact .ct-split__aside{
    padding-left: 26px;
    border-left: 2px solid var(--ba-gold);
  }
}

/* ============ 商务合作 ============ */

.page-contact .ct-coop__head{
  max-width: 74ch;
}

.page-contact .ct-coop__body{
  margin-top: clamp(30px, 4vw, 52px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-contact .ct-types{
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ct-rule);
}

.page-contact .ct-types li{
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: var(--ct-rule);
}

.page-contact .ct-types__num{
  padding-top: 3px;
  font-family: var(--ba-font-mono);
  font-size: 12.5px;
  color: var(--ba-cyan);
  letter-spacing: .06em;
}

.page-contact .ct-types__title{
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ba-paper);
}

.page-contact .ct-types__desc{
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ba-steel);
}

.page-contact .ct-flow{
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-flow__item{
  position: relative;
  padding: 0 0 26px 42px;
}

.page-contact .ct-flow__item::before{
  content: "";
  position: absolute;
  left: 11px;
  top: 26px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(180deg, var(--ba-line), rgba(46,58,104,.12));
}

.page-contact .ct-flow__item:last-child{
  padding-bottom: 0;
}

.page-contact .ct-flow__item:last-child::before{
  display: none;
}

.page-contact .ct-flow__num{
  position: absolute;
  left: 0;
  top: 0;
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ba-night);
  border: 1px solid var(--ba-gold);
  color: var(--ba-gold);
  font-family: var(--ba-font-mono);
  font-size: 11px;
}

.page-contact .ct-flow__title{
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ba-paper);
}

.page-contact .ct-flow__desc{
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ba-steel);
}

@media (min-width: 960px){
  .page-contact .ct-coop__body{
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    gap: clamp(36px, 5vw, 84px);
  }
}

/* ============ 电话与地址 ============ */

.page-contact .ct-reach{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .ct-reach__phone{
  padding: clamp(22px, 3vw, 34px);
  background: linear-gradient(152deg, var(--ba-lift), var(--ba-panel) 72%);
  border: var(--ba-line-soft);
  border-radius: var(--ba-radius);
}

.page-contact .ct-tel{
  margin: 16px 0 6px;
  font-family: var(--ba-font-mono);
  font-size: clamp(30px, 6vw, 48px);
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--ba-gold-hi);
}

.page-contact .ct-reach__phone .ba-small{
  display: block;
  margin-top: 16px;
}

.page-contact .ct-reach__addr{
  padding: clamp(22px, 3vw, 34px);
  background: var(--ba-panel);
  border: var(--ba-line-soft);
  border-left: 3px solid var(--ba-cyan);
  border-radius: var(--ba-radius);
}

.page-contact .ct-addr__value{
  margin: 14px 0 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ba-paper);
}

.page-contact .ct-addr__note{
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ba-steel);
}

@media (min-width: 880px){
  .page-contact .ct-reach{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(24px, 3vw, 44px);
    align-items: stretch;
  }
}

/* ============ 响应与校验节奏 ============ */

.page-contact .ct-rhythm__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 54px);
  align-items: center;
}

.page-contact .ct-beats{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .ct-beats li{
  display: grid;
  grid-template-columns: minmax(76px, 108px) minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: var(--ct-rule);
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--ba-steel);
}

.page-contact .ct-beats__key{
  font-family: var(--ba-font-mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .04em;
  color: var(--ba-cyan);
}

.page-contact .ct-rhythm__figure{
  margin: 0;
  overflow: hidden;
  background: var(--ba-panel);
  border: var(--ba-line-soft);
  border-radius: var(--ba-radius);
}

.page-contact .ct-rhythm__figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

@media (min-width: 960px){
  .page-contact .ct-rhythm__grid{
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

/* ============ 合作生态 ============ */

.page-contact .ct-eco__stats{
  margin-top: clamp(26px, 3vw, 42px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ba-line);
  border: var(--ba-line-soft);
  border-radius: var(--ba-radius);
  overflow: hidden;
}

.page-contact .ct-eco__cell{
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--ba-night);
}

.page-contact .ct-eco__num{
  margin: 0;
  font-family: var(--ba-font-mono);
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--ba-gold-hi);
}

.page-contact .ct-eco__label{
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--ba-steel);
}

.page-contact .ct-eco__note{
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--ba-cyan);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ba-steel);
}

@media (min-width: 860px){
  .page-contact .ct-eco__stats{
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ 备案与延伸 ============ */

.page-contact .ct-foot__inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-contact .ct-icp{
  margin: 14px 0 0;
  font-family: var(--ba-font-mono);
  font-size: 15px;
  letter-spacing: .05em;
  color: var(--ba-steel);
}

.page-contact .ct-links{
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
}

.page-contact .ct-links a{
  display: inline-block;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ba-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .22s var(--ba-ease), color .22s var(--ba-ease);
}

.page-contact .ct-links a:hover{
  color: var(--ba-gold-hi);
  border-bottom-color: var(--ba-gold);
}

@media (min-width: 860px){
  .page-contact .ct-foot__inner{
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: clamp(32px, 4vw, 64px);
  }

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

@media (prefers-reduced-motion: reduce){
  .page-contact .ct-templates__row .ba-chip,
  .page-contact .ct-links a{
    transition: none;
  }
}