.page-contact{
  --pc-gutter: 18px;
  background: var(--deep);
}

.page-contact a:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-contact .contact-top{
  background: var(--ink);
  padding: 14px 0 12px;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-top .crumbs{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-top .crumbs a{
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-top .crumbs a:hover{
  color: var(--white);
  border-bottom-color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  position: relative;
  overflow: hidden;
  padding: 40px 0 52px;
  border-bottom: 1px solid var(--line-dark);
  background:
    linear-gradient(158deg, var(--deep) 0%, var(--deep) 52%, var(--ink) 52%, var(--ink) 100%);
}

.page-contact .contact-hero::before{
  content: "";
  position: absolute;
  top: -110px;
  right: -120px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(104, 216, 255, 0.22), rgba(104, 216, 255, 0) 66%);
  pointer-events: none;
}

.page-contact .contact-hero__grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-contact .contact-hero h1{
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--white);
  margin: 14px 0 16px;
  max-width: 16em;
}

.page-contact .contact-hero__intro{
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.82);
  max-width: 34em;
  margin: 0;
}

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

.page-contact .contact-hero__meta{
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .contact-hero__panel{
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-sticker);
  padding: 20px 20px 10px;
}

.page-contact .contact-hero__panel-title{
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

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

.page-contact .track__step{
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .track__step:first-child{
  border-top: 0;
}

.page-contact .track__no{
  font-size: 12px;
  color: var(--orange);
  padding-top: 3px;
}

.page-contact .track__label{
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .track__hint{
  grid-column: 2;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 锚点导航 ---------- */
.page-contact .anchor-nav{
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(5, 13, 26, 0.96);
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .anchor-nav__inner{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0;
  scrollbar-width: none;
}

.page-contact .anchor-nav__inner::-webkit-scrollbar{
  display: none;
}

.page-contact .anchor-nav__link{
  flex: 0 0 auto;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver);
  text-decoration: none;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .anchor-nav__link:hover{
  color: var(--white);
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.14);
}

/* ---------- 通用区块头 ---------- */
.page-contact .section-head{
  max-width: 44rem;
  margin-bottom: 26px;
}

.page-contact .section-head h2{
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.6vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 10px 0 12px;
  color: var(--white);
}

.page-contact .section-head__lead{
  margin: 0;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.8);
}

.page-contact .section--silver .section-head h2{
  color: var(--deep);
}

.page-contact .section--silver .section-head__lead{
  color: rgba(17, 24, 32, 0.78);
}

/* ---------- 适用团队 ---------- */
.page-contact .audience-list{
  display: grid;
  gap: 14px;
}

.page-contact .audience-item{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--line-light);
  border-left: 4px solid var(--steel);
  box-shadow: 0 18px 34px -30px rgba(5, 13, 26, 0.9);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .audience-item:hover{
  transform: translateY(-3px);
  border-left-color: var(--orange);
  box-shadow: 0 26px 44px -30px rgba(5, 13, 26, 0.95);
}

.page-contact .audience-item__no{
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  padding-top: 2px;
}

.page-contact .audience-item h3{
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--deep);
  letter-spacing: 0.01em;
}

.page-contact .audience-item p{
  margin: 0 0 12px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(17, 24, 32, 0.78);
}

.page-contact .audience-item p a,
.page-contact .prep-note a,
.page-contact .region-link a{
  color: var(--steel);
  text-decoration: underline;
  text-decoration-color: rgba(255, 107, 44, 0.6);
  text-underline-offset: 3px;
}

.page-contact .audience-item p a:hover,
.page-contact .prep-note a:hover,
.page-contact .region-link a:hover{
  color: var(--orange);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels-grid{
  display: grid;
  gap: 26px;
}

.page-contact .channels-main h2{
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.6vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 10px 0 12px;
}

.page-contact .channels-lead{
  margin: 0;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.8);
  max-width: 40em;
}

.page-contact .channel-list{
  margin-top: 24px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .channel{
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .channel__key{
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .channel__val{
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--white);
  word-break: break-word;
}

.page-contact .channel__use{
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .channels-side{
  align-self: start;
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--silver);
  border: 1px solid rgba(104, 216, 255, 0.35);
}

.page-contact .channels-side__title{
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--deep);
}

.page-contact .channels-side__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .channels-side__list li{
  position: relative;
  padding-left: 20px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(17, 24, 32, 0.8);
}

.page-contact .channels-side__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(126, 217, 87, 0.25);
}

.page-contact .channels-side__note{
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-light);
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(17, 24, 32, 0.62);
}

/* ---------- 服务流程 ---------- */
.page-contact .process-grid{
  display: grid;
  gap: 26px;
}

.page-contact .process-figure{
  margin: 0;
}

.page-contact .process-figure img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-dark);
  background: var(--deep);
}

.page-contact .process-figure__cap{
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

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

.page-contact .process-step{
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--orange);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .process-step:hover{
  background: rgba(104, 216, 255, 0.07);
}

.page-contact .process-step__head{
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .process-step__no{
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .process-step h3{
  margin: 0;
  font-size: 1.02rem;
  color: var(--white);
}

.page-contact .process-step p{
  margin: 8px 0 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(233, 240, 247, 0.78);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep-grid{
  display: grid;
  gap: 12px;
}

.page-contact .prep-item{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--line-light);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .prep-item:hover{
  border-color: var(--steel);
}

.page-contact .prep-item:has(input:checked){
  border-color: var(--green);
  background: rgba(126, 217, 87, 0.14);
}

.page-contact .prep-item input{
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--green);
  cursor: pointer;
}

.page-contact .prep-item input:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-item span{
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(17, 24, 32, 0.8);
}

.page-contact .prep-item strong{
  display: block;
  margin-bottom: 2px;
  font-size: 0.98rem;
  color: var(--deep);
}

.page-contact .prep-note{
  margin: 18px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(17, 24, 32, 0.66);
}

/* ---------- 区域与协作 ---------- */
.page-contact .region-grid{
  display: grid;
  gap: 26px;
}

.page-contact .region-copy h2{
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.6vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 10px 0 12px;
}

.page-contact .region-copy > p{
  margin: 0 0 4px;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.8);
}

.page-contact .region-stats{
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
}

.page-contact .region-stat{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .region-stat__num{
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.page-contact .region-stat__label{
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .region-link{
  margin-top: 18px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(233, 240, 247, 0.72);
}

.page-contact .region-link a{
  color: var(--silver);
}

.page-contact .region-figure{
  margin: 0;
}

.page-contact .region-figure img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-dark);
  background: var(--ink);
}

.page-contact .region-figure figcaption{
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 响应与支持 ---------- */
.page-contact .sla-row{
  display: grid;
  gap: 14px;
  margin-bottom: 8px;
}

.page-contact .sla{
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-dark);
  background: linear-gradient(152deg, rgba(104, 216, 255, 0.1), rgba(255, 255, 255, 0) 72%);
}

.page-contact .sla__num{
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-contact .sla__unit{
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .sla__label{
  display: block;
  margin-top: 10px;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .accordion{
  margin-top: 30px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .accordion__item{
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .accordion__trigger{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 4px;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-contact .accordion__trigger:hover{
  color: var(--orange);
}

.page-contact .accordion__trigger:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .accordion__icon{
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.page-contact .accordion__icon::before,
.page-contact .accordion__icon::after{
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
  background: var(--orange);
  transition: transform var(--dur) var(--ease);
}

.page-contact .accordion__icon::after{
  transform: rotate(90deg);
}

.page-contact .accordion__trigger[aria-expanded="true"] .accordion__icon::after{
  transform: rotate(0deg);
}

.page-contact .accordion__panel{
  padding: 0 4px 20px;
}

.page-contact .accordion__panel p{
  margin: 0;
  max-width: 48em;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.78);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-cta{
  padding: 48px 0 56px;
  background: linear-gradient(118deg, var(--deep), var(--ink) 62%, #10233a 100%);
  border-top: 1px solid var(--line-dark);
}

.page-contact .contact-cta__inner{
  display: grid;
  gap: 22px;
}

.page-contact .contact-cta h2{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-cta p{
  margin: 0;
  max-width: 38em;
  line-height: 1.85;
  color: rgba(233, 240, 247, 0.8);
}

.page-contact .contact-cta__box{
  display: grid;
  gap: 10px;
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 107, 44, 0.45);
  background: rgba(255, 107, 44, 0.08);
}

.page-contact .contact-cta__box .mono{
  font-size: 0.95rem;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-cta__box .btn{
  justify-self: start;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px){
  .page-contact .prep-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .region-stats{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }

  .page-contact .contact-cta__inner{
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
  }
}

@media (min-width: 900px){
  .page-contact .contact-hero{
    padding: 64px 0 76px;
  }

  .page-contact .contact-hero__grid{
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-hero__panel{
    padding: 26px 26px 14px;
  }

  .page-contact .audience-item:nth-child(even){
    margin-left: 40px;
  }

  .page-contact .channels-grid{
    grid-template-columns: 1.35fr 0.65fr;
    gap: 44px;
    align-items: start;
  }

  .page-contact .process-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    align-items: start;
  }

  .page-contact .region-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 44px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .audience-item,
  .page-contact .anchor-nav__link,
  .page-contact .process-step,
  .page-contact .prep-item,
  .page-contact .accordion__icon::before,
  .page-contact .accordion__icon::after{
    transition: none;
  }

  .page-contact .audience-item:hover{
    transform: none;
  }
}