.page-contact{
  --c-line: rgba(25,20,16,.85);
  --c-gap: clamp(20px,4vw,44px);
  --c-block: clamp(36px,6vw,80px);
}

/* 首屏 */
.page-contact .c-hero{
  position: relative;
  overflow: hidden;
  padding: clamp(26px,5vw,44px) 0 clamp(36px,6vw,68px);
  border-bottom: 2px solid var(--ink-3);
  background-image:
    linear-gradient(180deg, rgba(43,240,200,.07), rgba(43,240,200,0) 62%),
    repeating-linear-gradient(90deg, rgba(143,179,168,.09) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(143,179,168,.07) 0 1px, transparent 1px 76px);
}
.page-contact .c-hero__inner{
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-contact .crumbs{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-contact .crumbs a{
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-contact .crumbs a:hover{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-contact .c-hero__kicker{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-contact .c-hero__title{
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px,5.6vw,50px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--on-dark);
  text-wrap: balance;
}
.page-contact .c-hero__lead{
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px,1.6vw,17px);
  line-height: 1.8;
  color: var(--on-dark);
}
.page-contact .c-hero__meta{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
}
.page-contact .c-hero__meta li{
  padding: 6px 10px;
  border: 1px solid var(--ink-3);
  background: rgba(43,240,200,.07);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--on-dark);
}
.page-contact .c-hero__jump{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 8px;
  margin-top: 14px;
}
.page-contact .c-hero__jump a{
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--ink-3);
  background: rgba(15,33,56,.62);
  color: var(--on-dark);
  font-size: 13px;
  text-decoration: none;
  transition: transform var(--ease), border-color var(--ease), color var(--ease);
}
.page-contact .c-hero__jump a:hover{
  transform: translateY(-2px);
  border-color: var(--cyan);
  color: var(--cyan);
}
.page-contact .c-jump__num{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

/* 主体布局 */
.page-contact .c-layout{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: clamp(40px,7vw,80px);
  padding-top: var(--c-block);
  padding-bottom: calc(var(--c-block) * 1.2);
}
.page-contact .c-col{
  display: flex;
  flex-direction: column;
  gap: clamp(36px,5vw,56px);
  min-width: 0;
}
.page-contact .c-sec{
  min-width: 0;
}

/* 章节头 */
.page-contact .c-head{
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--c-line);
}
.page-contact .c-head__num{
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--orange);
  flex: 0 0 auto;
}
.page-contact .c-head__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px,3.2vw,29px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper-ink);
  text-wrap: balance;
}
.page-contact .c-head--dark{
  border-bottom-color: var(--ink-3);
}
.page-contact .c-head--dark .c-head__num{
  color: var(--cyan);
}
.page-contact .c-head--dark .c-head__title{
  color: var(--on-dark);
}

/* 通用文字 */
.page-contact .c-lead{
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted-ink);
}
.page-contact .c-lead--dark{
  color: var(--on-dark);
}
.page-contact .c-text{
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-ink);
}
.page-contact .c-text--small{
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted-ink-2);
}
.page-contact .c-text a,
.page-contact .c-faq__body a,
.page-contact .c-more a{
  color: var(--paper-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  transition: color var(--ease), border-color var(--ease);
}
.page-contact .c-text a:hover,
.page-contact .c-faq__body a:hover,
.page-contact .c-more a:hover{
  color: var(--orange);
}

/* 联系渠道卡 */
.page-contact .c-cards{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: clamp(18px,3vw,26px);
}
.page-contact .c-card{
  position: relative;
  padding: clamp(20px,3.4vw,28px);
  background: var(--mint);
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  box-shadow: var(--hard-sm);
  overflow-wrap: anywhere;
}
.page-contact .c-card--hot{
  border-color: var(--orange);
}
.page-contact .c-card--hot::before{
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: var(--orange);
}
.page-contact .c-card__label{
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted-ink-2);
}
.page-contact .c-card__title{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--paper-ink);
}
.page-contact .c-card__value{
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(17px,3.2vw,24px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper-ink);
  word-break: break-word;
}
.page-contact .c-card--hot .c-card__value{
  color: var(--paper-ink);
  border-bottom: 2px dashed rgba(255,106,43,.55);
  padding-bottom: 6px;
  display: inline-block;
}
.page-contact .c-card__text{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-ink);
}
.page-contact .c-card__note{
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted-ink-2);
  padding-top: 12px;
  border-top: 1px solid rgba(25,20,16,.25);
}

/* 反馈章节（深色面板） */
.page-contact .c-sec--report{
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  box-shadow: var(--hard);
  background-image:
    repeating-linear-gradient(90deg, rgba(143,179,168,.07) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(143,179,168,.05) 0 1px, transparent 1px 64px);
}
.page-contact .c-report{
  padding: clamp(22px,4vw,38px);
}
.page-contact .c-steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-contact .c-steps__item{
  display: grid;
  grid-template-columns: 34px minmax(0,1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--ink-3);
}
.page-contact .c-steps__item:last-child{
  border-bottom: 1px solid var(--ink-3);
}
.page-contact .c-steps__num{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--cyan);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  color: var(--cyan);
}
.page-contact .c-steps__title{
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--on-dark);
}
.page-contact .c-steps__text{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--on-dark);
}
.page-contact .c-hint{
  margin: 20px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--cyan);
  background: rgba(43,240,200,.08);
  font-size: 14px;
  line-height: 1.75;
  color: var(--on-dark);
}

/* 图片容器 */
.page-contact .c-media{
  margin: 24px 0 0;
}
.page-contact .c-media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 2px solid var(--paper-ink);
  border-radius: var(--radius);
  box-shadow: var(--hard-sm);
}
.page-contact .c-media--dark img{
  border-color: var(--ink-3);
  box-shadow: var(--hard-sm);
  background: var(--ink);
}
.page-contact .c-media--map img{
  aspect-ratio: 5 / 4;
}
.page-contact .c-media figcaption{
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--muted-ink-2);
}
.page-contact .c-media--dark figcaption{
  color: var(--mist);
}

/* 所在地与备案 */
.page-contact .c-place{
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--beige);
  border-radius: var(--radius);
  background: rgba(228,251,245,.55);
  display: grid;
  gap: 12px;
}
.page-contact .c-place__row{
  display: grid;
  gap: 4px;
}
.page-contact .c-place__label{
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted-ink-2);
}
.page-contact .c-place__value{
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-ink);
  overflow-wrap: anywhere;
}
.page-contact .c-place__value--mono{
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .02em;
}

/* 自查 */
.page-contact .c-faq{
  border-top: 2px solid var(--c-line);
}
.page-contact .c-faq__item{
  border-bottom: 1px solid var(--beige);
}
.page-contact .c-faq__item summary{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper-ink);
  transition: color var(--ease);
}
.page-contact .c-faq__item summary::-webkit-details-marker{
  display: none;
}
.page-contact .c-faq__item summary::after{
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--orange);
}
.page-contact .c-faq__item[open] summary::after{
  content: "－";
}
.page-contact .c-faq__item summary:hover{
  color: var(--orange);
}
.page-contact .c-faq__body{
  padding: 0 0 16px;
}
.page-contact .c-faq__body p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted-ink);
}
.page-contact .c-more{
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  background: var(--mint);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-ink);
}

/* 焦点与动效 */
.page-contact a:focus-visible,
.page-contact summary:focus-visible{
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}
.has-js .page-contact [data-reveal]{
  opacity: 0;
  transform: translateY(12px);
}
.has-js .page-contact [data-reveal].is-visible{
  opacity: 1;
  transform: none;
  transition: opacity 320ms ease, transform 320ms ease;
}

/* 窄屏微调 */
@media (max-width: 479px){
  .page-contact .c-hero__jump{
    grid-template-columns: minmax(0,1fr);
  }
  .page-contact .c-card__value{
    font-size: 16px;
  }
  .page-contact .c-steps__item{
    grid-template-columns: 30px minmax(0,1fr);
    gap: 10px;
  }
}

/* 桌面分屏：左 5 列渠道与反馈，右 7 列位置与自查，两栏错落 */
@media (min-width: 980px){
  .page-contact .c-layout{
    grid-template-columns: minmax(0,5fr) minmax(0,7fr);
    column-gap: clamp(32px,4.4vw,68px);
    align-items: start;
  }
  .page-contact .c-col--side{
    margin-top: 88px;
  }
  .page-contact .c-hero__jump{
    grid-template-columns: repeat(4, minmax(0,1fr));
  }
  .page-contact .c-hero__jump a{
    min-height: 68px;
  }
}

@media (prefers-reduced-motion: reduce){
  .has-js .page-contact [data-reveal]{
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-contact .c-hero__jump a:hover{
    transform: none;
  }
}
<<<END>>>