.page-contact{
  --pc-violet-glow: rgba(124,92,255,.18);
  --pc-cyan-glow: rgba(56,225,225,.09);
  --pc-body: rgba(245,248,255,.78);
  --pc-body-dim: rgba(245,248,255,.62);
  --pc-card: rgba(13,20,36,.62);
  --pc-card-solid: rgba(13,20,36,.86);

  color: var(--c-white);
  background:
    radial-gradient(140% 68% at 88% -10%, var(--pc-violet-glow), rgba(5,7,15,0) 58%),
    radial-gradient(110% 62% at -8% 18%, var(--pc-cyan-glow), rgba(5,7,15,0) 64%);
  padding-bottom: clamp(56px,8vw,120px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  padding-top: clamp(22px,3.4vw,42px);
}
.page-contact .contact-hero .breadcrumb{
  margin-bottom: clamp(20px,3vw,38px);
}
.page-contact .contact-hero__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px,4vw,48px);
  align-items: end;
}
.page-contact .contact-hero__title{
  margin: 0 0 clamp(16px,2vw,24px);
  font-family: var(--font-display);
  font-size: clamp(40px,8.4vw,88px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.035em;
  max-width: 14ch;
}
.page-contact .contact-hero__lede{
  margin: 0 0 clamp(16px,2vw,22px);
  max-width: 54ch;
  font-size: clamp(16px,1.6vw,18px);
  line-height: 1.8;
  color: var(--pc-body);
}
.page-contact .contact-hero__hint{
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--pc-body-dim);
}
.page-contact .contact-hero__pulse{
  position: relative;
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(56,225,225,.14);
}
.page-contact .contact-hero__figure{
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-violet);
  background: var(--c-cabin);
}
.page-contact .contact-hero__figure::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,7,15,.06), rgba(5,7,15,.42));
  pointer-events: none;
}
.page-contact .contact-hero__figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  filter: saturate(.82) contrast(1.04);
}

@media (min-width: 1024px){
  .page-contact .contact-hero__grid{
    grid-template-columns: minmax(0,7fr) minmax(0,5fr);
    gap: clamp(32px,4vw,64px);
  }
}

/* ---------- 章节通用 ---------- */
.page-contact .section{
  padding-top: clamp(52px,7.5vw,104px);
}
.page-contact .section__lede{
  max-width: 62ch;
  margin: 0 0 clamp(26px,3.4vw,44px);
  font-size: clamp(15px,1.5vw,17px);
  line-height: 1.8;
  color: var(--pc-body);
}

/* ---------- 01 渠道 ---------- */
.page-contact .channel-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.page-contact .channel-card{
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px,2.4vw,30px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--pc-card);
  backdrop-filter: blur(10px);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.page-contact .channel-card:hover{
  border-color: var(--line-violet);
  transform: translateY(-3px);
}
.page-contact .channel-card .tag{
  align-self: flex-start;
}
.page-contact .channel-card__name{
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.page-contact .channel-card__value{
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(15px,1.5vw,17px);
  line-height: 1.55;
  color: var(--c-white);
  overflow-wrap: anywhere;
  word-break: break-word;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .channel-card__note{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-body-dim);
}

@media (min-width: 720px){
  .page-contact .channel-list{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}
@media (min-width: 1080px){
  .page-contact .channel-list{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
  .page-contact .channel-card:nth-child(2){
    transform: translateY(18px);
  }
  .page-contact .channel-card:nth-child(2):hover{
    transform: translateY(15px);
  }
}

/* ---------- 斜向引导线 ---------- */
.page-contact .contact-bridge{
  display: block;
  width: 100%;
  height: clamp(34px,4vw,58px);
  margin: 0 0 clamp(10px,1.6vw,22px);
  pointer-events: none;
}

/* ---------- 02 纠错 ---------- */
.page-contact .correction-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px,3.6vw,56px);
  align-items: start;
}
.page-contact .correction-visual{
  display: grid;
  gap: clamp(18px,2.4vw,26px);
}
.page-contact .correction-figure{
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--c-cabin);
}
.page-contact .correction-figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(.78) contrast(1.06);
}
.page-contact .correction-figure__caption{
  display: block;
  padding: 14px 18px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-body-dim);
  border-top: 1px solid var(--line-soft);
}
.page-contact .scope-note{
  padding: clamp(18px,2.2vw,26px);
  border-radius: var(--r-md);
  border: 1px solid var(--line-violet);
  background: var(--pc-card-solid);
}
.page-contact .scope-note__title{
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-cyan);
}
.page-contact .scope-note__body{
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .correction-prep__title{
  margin: 0 0 clamp(16px,2vw,22px);
  font-family: var(--font-display);
  font-size: clamp(19px,2vw,23px);
  font-weight: 700;
  letter-spacing: -.01em;
}
.page-contact .checklist{
  list-style: none;
  margin: 0 0 clamp(16px,2vw,22px);
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-contact .checklist__item{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(13,20,36,.5);
  font-size: 15px;
  line-height: 1.65;
  color: var(--pc-body);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.page-contact .checklist__item:hover{
  border-color: var(--line-violet);
  color: var(--c-white);
}
.page-contact .checklist__box{
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid rgba(56,225,225,.5);
  border-radius: 4px;
  background: rgba(56,225,225,.08);
}
.page-contact .checklist__box::after{
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 1.5px solid var(--c-cyan);
  border-bottom: 1.5px solid var(--c-cyan);
  transform: rotate(42deg);
}
.page-contact .correction-prep__foot{
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-clay);
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-body-dim);
}

@media (min-width: 1024px){
  .page-contact .correction-grid{
    grid-template-columns: minmax(0,6fr) minmax(0,5fr);
  }
}

/* ---------- 03 合作 ---------- */
.page-contact .partner-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px,3.6vw,52px);
  align-items: start;
}
.page-contact .partner-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px,1.8vw,20px);
}
.page-contact .partner-item{
  padding: clamp(18px,2.2vw,24px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-violet);
  border-radius: var(--r-sm);
  background: rgba(124,92,255,.06);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-contact .partner-item:hover{
  background: rgba(124,92,255,.12);
  border-color: var(--line-violet);
  border-left-color: var(--c-cyan);
}
.page-contact .partner-item__title{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}
.page-contact .partner-item__body{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pc-body);
}
.page-contact .partner-brief{
  padding: clamp(20px,2.6vw,32px);
  border: 1px solid var(--line-violet);
  border-radius: var(--r-md);
  background: var(--pc-card-solid);
}
.page-contact .partner-brief__title{
  margin: 0 0 clamp(14px,2vw,20px);
  font-family: var(--font-display);
  font-size: clamp(18px,1.9vw,21px);
  font-weight: 700;
}
.page-contact .partner-brief__list{
  margin: 0 0 clamp(16px,2vw,22px);
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .partner-brief__row{
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.page-contact .partner-brief__row:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .partner-brief__row dt{
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--c-amber);
}
.page-contact .partner-brief__row dd{
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--pc-body);
}
.page-contact .partner-brief__foot{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--pc-body-dim);
}

@media (min-width: 720px){
  .page-contact .partner-list{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}
@media (min-width: 1024px){
  .page-contact .partner-grid{
    grid-template-columns: minmax(0,7fr) minmax(0,4fr);
  }
}

/* ---------- 04 响应节奏 ---------- */
.page-contact .sla-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--line);
}
.page-contact .sla-item{
  display: grid;
  gap: 8px;
  padding: clamp(16px,2vw,22px) clamp(10px,1.4vw,18px);
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background var(--t-fast) var(--ease);
}
.page-contact .sla-item::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--c-clay);
  opacity: .55;
}
.page-contact .sla-item--cyan::before{ background: var(--c-cyan); opacity: .9; }
.page-contact .sla-item--violet::before{ background: var(--c-violet); opacity: .9; }
.page-contact .sla-item:hover{
  background: rgba(124,92,255,.06);
}
.page-contact .sla-item__time{
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--c-white);
}
.page-contact .sla-item__body{
  font-size: 15px;
  line-height: 1.75;
  color: var(--pc-body);
}
@media (min-width: 768px){
  .page-contact .sla-item{
    grid-template-columns: minmax(0,3fr) minmax(0,7fr);
    align-items: baseline;
    gap: clamp(18px,3vw,40px);
  }
  .page-contact .sla-item__time{
    text-align: right;
    color: var(--c-amber);
  }
  .page-contact .sla-item--cyan .sla-item__time{ color: var(--c-cyan); }
  .page-contact .sla-item--violet .sla-item__time{ color: var(--c-violet); }
}

/* ---------- 05 常见问题 ---------- */
.page-contact .ask-list{
  list-style: none;
  margin: 0 0 clamp(24px,3vw,36px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px,1.6vw,16px);
}
.page-contact .ask-item__link{
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(18px,2.2vw,24px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(13,20,36,.46);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.page-contact .ask-item__link:hover,
.page-contact .ask-item__link:focus-visible{
  border-color: rgba(255,122,61,.55);
  background: rgba(255,122,61,.07);
  transform: translateY(-2px);
  outline: none;
}
.page-contact .ask-item__q{
  font-family: var(--font-display);
  font-size: clamp(15.5px,1.6vw,17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-white);
}
.page-contact .ask-item__a{
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-body-dim);
}
.page-contact .ask-item__go{
  justify-self: start;
  margin-top: 6px;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-orange);
}
.page-contact .ask-foot{
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body-dim);
}
.page-contact .ask-foot__link{
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56,225,225,.4);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-contact .ask-foot__link:hover,
.page-contact .ask-foot__link:focus-visible{
  color: var(--c-white);
  border-bottom-color: var(--c-white);
}

@media (min-width: 900px){
  .page-contact .ask-list{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}