.page-contact{
  --c-pad: clamp(18px, 3vw, 34px);
  --c-hairline: rgba(242,231,213,.16);
  background: var(--ink);
  color: var(--text-ink);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow-x: hidden;
}

/* 面包屑 */
.page-contact .c-crumb{ padding-top: clamp(18px, 3vw, 30px); }
.page-contact .c-crumb .breadcrumbs__link{ color: var(--text-dim); }
.page-contact .c-crumb .breadcrumbs__current{ color: var(--teal-soft); }

/* 首屏 */
.page-contact .c-hero{
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  padding-top: clamp(22px, 3.5vw, 44px);
  padding-bottom: clamp(26px, 4vw, 48px);
  align-items: end;
}
.page-contact .c-hero::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 62%;
  height: 54%;
  background: linear-gradient(158deg, rgba(242,106,46,.15), rgba(242,106,46,0) 66%);
  clip-path: polygon(0 0, 100% 0, 58% 100%, 0 100%);
  pointer-events: none;
}
.page-contact .c-hero h1{
  position: relative;
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 20ch;
}
.page-contact .eyebrow{ color: var(--teal-soft); }
.page-contact .c-hero__lede{
  margin: 16px 0 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .c-hero__acts{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* 服务台状态板 */
.page-contact .c-desk{
  position: relative;
  border: 1px solid var(--line-ink-strong);
  background:
    linear-gradient(180deg, rgba(22,122,106,.16), rgba(22,122,106,0) 62%),
    var(--ink-2);
  padding: var(--c-pad);
}
.page-contact .c-desk::after{
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 3px;
  background: var(--signal);
}
.page-contact .c-desk__title{
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--teal-soft);
}
.page-contact .c-desk__list{ list-style: none; margin: 0; padding: 0; }
.page-contact .c-desk__list li{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line-ink);
}
.page-contact .c-desk__k{
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--text-mute);
}
.page-contact .c-desk__v{
  font-size: 14px;
  color: var(--paper);
  font-weight: 500;
}
.page-contact .c-desk__foot{
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-ink);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-mute);
}

/* 章节快速跳转 */
.page-contact .c-jump{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  padding: 14px 0;
  margin-bottom: clamp(28px, 4.5vw, 54px);
  border-top: 1px solid var(--line-ink);
  border-bottom: 1px solid var(--line-ink);
}
.page-contact .c-jump__item{
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 3px 0;
  font-size: 13.5px;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .c-jump__item:hover,
.page-contact .c-jump__item:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--signal);
}
.page-contact .c-jump__num{
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--teal-soft);
}

/* 区块 */
.page-contact .c-block{ padding-block: clamp(28px, 4.4vw, 56px); }

.page-contact .c-sec-head{ margin-bottom: clamp(18px, 2.4vw, 28px); }
.page-contact .c-sec-head h2{
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}
.page-contact .c-lede{
  margin: 12px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* 奶油纸信息块 */
.page-contact .c-sheet{
  background: var(--paper);
  color: var(--brown);
  border: 1px solid var(--line-paper);
  padding: clamp(20px, 3vw, 36px);
}
.page-contact .c-sheet--warm{ background: var(--paper-warm); }
.page-contact .c-sheet .c-sec-head h2{ color: var(--brown); }
.page-contact .c-sheet .c-lede{ color: rgba(36,27,22,.76); }
.page-contact .c-sheet .eyebrow{ color: var(--terracotta); }

/* 联系渠道 */
.page-contact .c-channels__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.page-contact .c-channel{
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line-paper);
}
.page-contact .c-channel__label{
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--terracotta);
}
.page-contact .c-channel__value{
  display: inline-block;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(18px, 3.4vw, 29px);
  letter-spacing: .01em;
  line-height: 1.25;
  color: var(--brown);
  text-decoration: none;
  word-break: break-all;
  background-image: linear-gradient(var(--terracotta), var(--terracotta));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 32% 2px;
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-contact .c-channel__value:hover,
.page-contact .c-channel__value:focus-visible{
  color: var(--terracotta);
  background-size: 100% 2px;
}
.page-contact .c-channel__hint{
  margin: 10px 0 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(36,27,22,.74);
}
.page-contact .c-note{
  margin: 24px 0 0;
  padding: 10px 12px 10px 14px;
  border-left: 2px solid var(--teal);
  background: rgba(22,122,106,.07);
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(36,27,22,.82);
}

/* 地址与区域 */
.page-contact .c-place{ display: grid; gap: var(--gap); }
.page-contact .c-place__card{
  border: 1px solid var(--line-ink-strong);
  background: var(--ink-2);
  padding: var(--c-pad);
}
.page-contact .c-place__label{
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--teal-soft);
}
.page-contact .c-place__addr{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.5;
  color: var(--paper);
}
.page-contact .c-place__hint{
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-mute);
}
.page-contact .c-map{
  position: relative;
  margin: 0;
  border: 1px solid var(--line-ink);
  background: var(--ink-3);
  overflow: hidden;
}
.page-contact .c-map img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-contact .c-map__cap{
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 12px;
  background: rgba(7,19,31,.84);
  border-top: 1px solid var(--line-teal);
  font-size: 10.5px;
  letter-spacing: .08em;
  color: var(--teal-soft);
}

/* 提交清单 */
.page-contact .c-prep__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  align-items: start;
}
.page-contact .c-checklist{ margin-top: 6px; }
.page-contact .c-checklist__list{ list-style: none; margin: 0; padding: 0; }
.page-contact .c-checkitem{
  position: relative;
  border-top: 1px solid var(--line-paper);
}
.page-contact .c-checkitem:last-child{ border-bottom: 1px solid var(--line-paper); }
.page-contact .c-checkitem__box{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.page-contact .c-checkitem__label{
  display: grid;
  grid-template-columns: 20px minmax(0,1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 4px;
  cursor: pointer;
}
.page-contact .c-checkitem__tick{
  width: 18px;
  height: 18px;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(36,27,22,.44);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .c-checkitem__tick::after{
  content: "";
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(-45deg) translate(1px,-1px) scale(.8);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.page-contact .c-checkitem__box:checked + .c-checkitem__label .c-checkitem__tick{
  background: var(--signal);
  border-color: var(--signal);
}
.page-contact .c-checkitem__box:checked + .c-checkitem__label .c-checkitem__tick::after{ opacity: 1; }
.page-contact .c-checkitem__box:focus-visible + .c-checkitem__label{
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
.page-contact .c-checkitem__body{ display: block; min-width: 0; }
.page-contact .c-checkitem__t{
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--brown);
}
.page-contact .c-checkitem__d{
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(36,27,22,.72);
}
.page-contact .c-checkitem__state{
  padding-top: 3px;
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--teal);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .c-checkitem__box:checked + .c-checkitem__label .c-checkitem__state{
  opacity: 1;
  transform: none;
}
.page-contact .c-meter{
  display: flex;
  gap: 6px;
  margin-top: 18px;
}
.page-contact .c-meter__seg{
  flex: 1;
  height: 5px;
  background: rgba(36,27,22,.16);
  transition: background var(--dur) var(--ease);
}
.page-contact .c-checklist:has(#prep-device:checked) .c-meter__seg:nth-child(1),
.page-contact .c-checklist:has(#prep-os:checked) .c-meter__seg:nth-child(2),
.page-contact .c-checklist:has(#prep-browser:checked) .c-meter__seg:nth-child(3),
.page-contact .c-checklist:has(#prep-shot:checked) .c-meter__seg:nth-child(4),
.page-contact .c-checklist:has(#prep-net:checked) .c-meter__seg:nth-child(5){
  background: var(--teal);
}

.page-contact .c-prep__media{
  margin: 0;
  border: 1px solid var(--line-paper);
  background: var(--paper-warm);
}
.page-contact .c-prep__media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-contact .c-prep__cap{
  padding: 10px 14px;
  border-top: 1px solid var(--line-paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(36,27,22,.7);
}

/* 回复安排 */
.page-contact .c-reply{
  background:
    repeating-linear-gradient(90deg, rgba(242,231,213,.055) 0 1px, transparent 1px 64px),
    var(--ink-2);
  border-top: 1px solid var(--line-ink);
  border-bottom: 1px solid var(--line-ink);
}
.page-contact .c-reply__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.page-contact .c-line{
  padding-top: 16px;
  border-top: 2px solid var(--teal);
}
.page-contact .c-line .c-line__num{
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--teal-soft);
}
.page-contact .c-line h3{
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper);
}
.page-contact .c-line p{
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--text-dim);
}
.page-contact .c-facts{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 1px;
  margin-top: clamp(24px, 3.4vw, 38px);
  background: var(--line-ink);
  border: 1px solid var(--line-ink);
}
.page-contact .c-facts__item{
  margin: 0;
  padding: 16px 18px;
  background: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-dim);
}
.page-contact .c-facts__n{
  display: block;
  margin-bottom: 4px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--paper);
}

/* 合作与纠错 */
.page-contact .c-coop__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.page-contact .c-coop__tag{
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 9px;
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--paper);
  background: var(--teal);
}
.page-contact .c-coop h3{
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  color: var(--brown);
}
.page-contact .c-coop p{
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(36,27,22,.76);
}
.page-contact .c-coop__list{
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}
.page-contact .c-coop__list li{
  position: relative;
  padding-left: 16px;
  margin-bottom: 7px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(36,27,22,.82);
}
.page-contact .c-coop__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 1px;
  background: var(--terracotta);
}
.page-contact .c-sheet--dark{
  background: var(--ink-2);
  border-color: var(--line-ink-strong);
}
.page-contact .c-sheet--dark h3{ color: var(--paper); }
.page-contact .c-sheet--dark p{ color: var(--text-dim); }
.page-contact .c-sheet--dark .c-coop__list li{ color: var(--text-dim); }
.page-contact .c-sheet--dark .c-coop__list li::before{ background: var(--teal-soft); }
.page-contact .c-sheet--dark .c-coop__tag{
  background: var(--signal);
  color: var(--ink);
}
.page-contact .c-coop__foot{
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 12px 0 12px 14px;
  border-left: 2px solid var(--teal);
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* 相关入口 */
.page-contact .c-more h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--paper);
}
.page-contact .c-more__list{
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}
.page-contact .c-more__item{ border-top: 1px solid var(--line-ink); }
.page-contact .c-more__item:last-child{ border-bottom: 1px solid var(--line-ink); }
.page-contact .c-more__link{
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 4px;
  font-size: 14.5px;
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-contact .c-more__link .u-mono{
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--teal-soft);
}
.page-contact .c-more__link::after{
  content: "→";
  margin-left: auto;
  color: var(--text-mute);
  transition: transform var(--dur) var(--ease);
}
.page-contact .c-more__link:hover,
.page-contact .c-more__link:focus-visible{
  color: var(--signal);
  background: rgba(242,231,213,.04);
}
.page-contact .c-more__link:hover::after{ transform: translateX(4px); }

/* 响应式 */
@media (min-width: 800px){
  .page-contact .c-reply__grid{ grid-template-columns: repeat(3, minmax(0,1fr)); }
  .page-contact .c-facts{ grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (min-width: 900px){
  .page-contact .c-hero{
    grid-template-columns: minmax(0,7fr) minmax(0,5fr);
    gap: clamp(24px, 3.5vw, 46px);
  }
  .page-contact .c-channels__grid{
    grid-template-columns: minmax(0,7fr) minmax(0,5fr);
    align-items: start;
  }
  .page-contact .c-prep__grid{
    grid-template-columns: minmax(0,7fr) minmax(0,5fr);
  }
  .page-contact .c-coop__grid{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
}

@media (max-width: 600px){
  .page-contact .c-jump{ gap: 6px 18px; }
  .page-contact .c-facts__item{ padding: 14px; }
  .page-contact .c-map__cap{ position: static; border-top: 1px solid var(--line-teal); }
  .page-contact .c-desk__list li{ flex-direction: column; }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .c-jump__item,
  .page-contact .c-channel__value,
  .page-contact .c-checkitem__tick,
  .page-contact .c-checkitem__state,
  .page-contact .c-meter__seg,
  .page-contact .c-more__link,
  .page-contact .c-more__link::after{
    transition: none;
  }
}
<<<END>>>