/* ================= 联系入口页 · page-contact ================= */
.page-contact{
  --c-gap: clamp(18px, 2.6vw, 34px);
  --c-pad: clamp(18px, 2.4vw, 28px);
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(110% 70% at 88% -8%, rgba(0, 229, 255, .12) 0%, rgba(0, 229, 255, 0) 58%),
    linear-gradient(180deg, #0A1633 0%, #0A1633 58%, #0A2A33 100%);
  color: var(--paper);
  padding-bottom: clamp(56px, 8vw, 104px);
  overflow-x: clip;
}

.page-contact::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--hair) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hair) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9) 0%, rgba(0, 0, 0, 0) 60%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9) 0%, rgba(0, 0, 0, 0) 60%);
}

.page-contact > .wrap{
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(18px, 3.4vw, 36px);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-contact .breadcrumb a{
  color: var(--cyan-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .breadcrumb a:hover{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .breadcrumb__sep{
  color: var(--muted);
  opacity: .55;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-head{
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding-top: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(34px, 5vw, 58px);
}

.page-contact .eyebrow{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact h1{
  margin: 12px 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact h1::after{
  content: "";
  display: block;
  width: clamp(64px, 12vw, 124px);
  height: 4px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--amber) 0%, var(--cyan) 100%);
}

.page-contact .lede{
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-head__main .lede{
  margin-top: 18px;
}

.page-contact .contact-head__aside{
  position: relative;
  padding: var(--c-pad) var(--c-pad) var(--c-pad) calc(var(--c-pad) + 16px);
  background: rgba(19, 42, 82, .55);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 14px, 14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-contact .contact-head__aside::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--amber) 0%, var(--amber-soft) 100%);
}

.page-contact .aside-label{
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .aside-facts{
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .aside-facts li{
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .aside-facts li:first-child{
  padding-top: 0;
  border-top: 0;
}

.page-contact .aside-facts .mono{
  display: inline-block;
  min-width: 5.4em;
  margin-right: 8px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .in-page-link{
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .4);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .in-page-link:hover{
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 通用区块标题 ---------- */
.page-contact .block-head{
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .block-head h2,
.page-contact .feedback__body h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .block-head h2::before{
  content: "";
  display: inline-block;
  width: 14px;
  height: 3px;
  margin-right: 12px;
  vertical-align: middle;
  background: var(--amber);
}

.page-contact .block-sub{
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联系通道 ---------- */
.page-contact .channels{
  padding-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .channels__grid{
  display: grid;
  gap: var(--c-gap);
}

.page-contact .channels__list{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .channel{
  position: relative;
  padding: var(--c-pad) var(--c-pad) var(--c-pad) calc(var(--c-pad) + 16px);
  background: linear-gradient(135deg, rgba(19, 42, 82, .86) 0%, rgba(19, 42, 82, .5) 100%);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 14px, 14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .channel::before{
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 0;
  width: 4px;
  background: var(--line-soft);
  transition: background .25s var(--ease);
}

.page-contact .channel:hover{
  transform: translateY(-3px);
  border-color: rgba(0, 229, 255, .45);
}

.page-contact .channel:hover::before{
  background: var(--amber);
}

.page-contact .channel__tag{
  display: inline-block;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .channel h3{
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .channel__value{
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--amber-soft);
  overflow-wrap: anywhere;
}

.page-contact .channel__note{
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channels__media{
  margin: 0;
  align-self: start;
}

.page-contact .channels__media img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 站内反馈区 ---------- */
.page-contact .feedback{
  margin-top: clamp(44px, 6vw, 80px);
  padding-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 90px;
}

.page-contact .feedback__grid{
  display: grid;
  gap: var(--c-gap);
}

.page-contact .feedback__media{
  margin: 0;
}

.page-contact .feedback__media img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .feedback__body h2{
  margin-bottom: 14px;
}

.page-contact .steps{
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .steps li{
  position: relative;
  padding-left: 46px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .steps li .mono{
  position: absolute;
  left: 0;
  top: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 22px;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--ink-900);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 72%, calc(100% - 6px) 100%, 0 100%);
}

.page-contact .feedback__hint{
  margin: 16px 0 0;
  padding: 12px 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--cyan-mist);
  background: rgba(0, 229, 255, .07);
  border-left: 3px solid var(--cyan);
}

.page-contact .feedback__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 服务时间与响应 ---------- */
.page-contact .response{
  margin-top: clamp(44px, 6vw, 80px);
  padding-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .response__grid{
  display: grid;
  gap: 14px;
}

.page-contact .response__item{
  padding: var(--c-pad);
  background: rgba(10, 42, 51, .42);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-contact .response__idx{
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .response__item h3{
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--paper);
}

.page-contact .response__item p{
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 常见对接场景 ---------- */
.page-contact .scenarios{
  margin-top: clamp(44px, 6vw, 80px);
  padding-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .scenario-list{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  border-top: 1px solid var(--line-soft);
}

.page-contact .scenario{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 18px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background .22s var(--ease), padding-left .22s var(--ease);
}

.page-contact .scenario:hover{
  background: linear-gradient(90deg, rgba(0, 229, 255, .07) 0%, rgba(0, 229, 255, 0) 62%);
  padding-left: 12px;
}

.page-contact .scenario__idx{
  padding-top: 4px;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .scenario__body h3{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .scenario__body p{
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .scenario__link{
  grid-column: 2;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .scenario__link:hover{
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 键盘焦点 ---------- */
.page-contact a:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(0, 229, 255, .18);
}

/* ---------- 断点 ---------- */
@media (min-width: 900px){
  .page-contact .channels__grid{
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .feedback__grid{
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .scenario{
    grid-template-columns: 64px minmax(0, 1fr) auto;
    align-items: center;
    padding: 22px 0;
  }

  .page-contact .scenario__idx{
    padding-top: 0;
  }

  .page-contact .scenario__link{
    grid-column: 3;
    justify-self: end;
  }
}

@media (min-width: 960px){
  .page-contact .contact-head{
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: end;
    column-gap: var(--c-gap);
  }
}

@media (min-width: 1020px){
  .page-contact .response__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--c-gap);
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .channel,
  .page-contact .channel::before,
  .page-contact .scenario,
  .page-contact .scenario__link,
  .page-contact .breadcrumb a,
  .page-contact .in-page-link{
    transition: none;
  }

  .page-contact .channel:hover{
    transform: none;
  }

  .page-contact .scenario:hover{
    padding-left: 0;
  }
}