.page-contact{
  --pc-shadow: 10px 10px 0 rgba(184,111,59,.24);
  --pc-shadow-deep: 9px 9px 0 rgba(14,91,82,.22);
  display:block;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(63,115,112,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63,115,112,.055) 1px, transparent 1px);
  background-size: 100% 34px, 34px 100%;
  color: var(--ink);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: hidden;
}

.page-contact .page-shell{
  padding-top: clamp(18px, 3vw, 34px);
}

/* 首屏标题 */
.page-contact .contact-head{
  position: relative;
  padding: clamp(16px, 2.6vw, 30px) 0 clamp(18px, 3vw, 34px);
}
.page-contact .contact-head .page-head__coord{
  font-family: var(--font-mono);
  letter-spacing: .16em;
}
.page-contact .contact-head__title{
  margin: .22em 0 .34em;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.6vw, 74px);
  line-height: 1.06;
  letter-spacing: .035em;
  color: var(--ink);
}
.page-contact .contact-head .page-head__lede{
  max-width: 60ch;
  font-size: clamp(16px, 1.55vw, 18px);
  line-height: 1.78;
  color: var(--ink-soft);
}
.page-contact .contact-head__quick{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

/* 首屏双栏 */
.page-contact .contact-hero{
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(10px, 2vw, 18px);
  padding-bottom: clamp(34px, 5vw, 70px);
}
.page-contact .contact-hero__lead{
  position: relative;
  padding-top: 6px;
}
.page-contact .contact-hero__kicker{
  margin: 12px 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--karst);
}
.page-contact .contact-hero__title{
  margin: 0 0 .5em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.24;
  letter-spacing: .02em;
  color: var(--ink);
  max-width: 15em;
}
.page-contact .contact-hero__body{
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ink-soft);
}
.page-contact .contact-hero__promise{
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  margin: clamp(20px, 3vw, 28px) 0;
  padding: 16px 0 16px clamp(14px, 2vw, 20px);
  border-left: 3px solid var(--tangerine);
  background: linear-gradient(90deg, rgba(242,140,40,.14), rgba(242,140,40,0) 74%);
}
.page-contact .contact-hero__num{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(42px, 7vw, 62px);
  line-height: .92;
  color: var(--cinnabar);
  flex: none;
}
.page-contact .contact-hero__promise-text strong{
  display: block;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--ink);
  margin-bottom: 6px;
}
.page-contact .contact-hero__promise-text p{
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.page-contact .contact-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* 联系说明牌 */
.page-contact .contact-card{
  position: relative;
  margin: 0;
  padding: clamp(22px, 3.2vw, 36px);
  background: var(--ink);
  color: var(--white);
  border: 1px solid var(--copper);
  box-shadow: var(--pc-shadow), var(--pc-shadow-deep);
}
.page-contact .contact-card__coord{
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--celadon);
}
.page-contact .contact-card__title{
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: .03em;
  color: var(--white);
}
.page-contact .contact-card__list{
  margin: 16px 0 0;
  display: grid;
  gap: 14px;
}
.page-contact .contact-card__row{
  padding-top: 12px;
  border-top: 1px solid rgba(243,233,215,.18);
}
.page-contact .contact-card__row:first-child{
  border-top: 0;
  padding-top: 0;
}
.page-contact .contact-card__row dt{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--celadon);
}
.page-contact .contact-card__row dd{
  margin: 5px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.55;
  color: var(--white);
  word-break: break-word;
}
.page-contact .contact-card__copy{
  color: var(--tangerine);
  font-weight: 700;
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
  cursor: copy;
}
.page-contact .contact-card__note{
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(169,207,194,.4);
  font-size: 13px;
  line-height: 1.7;
  color: var(--celadon);
}

/* 提交准备 */
.page-contact .contact-prepare{
  padding: clamp(36px, 5vw, 74px) 0;
  border-top: 1px solid var(--line);
}
.page-contact .contact-prepare__head{
  max-width: 64ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}
.page-contact .contact-prepare__lede{
  margin: 12px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
}
.page-contact .contact-prepare__grid{
  display: grid;
  gap: 14px;
}
.page-contact .prep-item{
  background: var(--white);
  border: 1px solid var(--line-strong);
  padding: 18px 20px;
  box-shadow: 5px 5px 0 rgba(63,115,112,.14);
  transition: box-shadow .25s ease, transform .25s ease;
}
.page-contact .prep-item:hover{
  transform: translateY(-2px);
  box-shadow: 7px 9px 0 rgba(63,115,112,.2);
}
.page-contact .prep-item__summary{
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 19px);
  color: var(--ink);
}
.page-contact .prep-item__summary::-webkit-details-marker{
  display: none;
}
.page-contact .prep-item__summary::after{
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--copper);
}
.page-contact .prep-item[open] .prep-item__summary::after{
  content: "−";
  color: var(--cinnabar);
}
.page-contact .prep-item__no{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--copper);
  flex: none;
}
.page-contact .prep-item[open] .prep-item__no{
  color: var(--cinnabar);
}
.page-contact .prep-item__body{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}
.page-contact .prep-item__body p{
  margin: 0 0 10px;
}
.page-contact .prep-item__body p:last-child{
  margin-bottom: 0;
}

/* 处理流程深色带 */
.page-contact .contact-flow{
  position: relative;
  padding: clamp(40px, 6vw, 84px) 0;
  background: var(--night);
  color: var(--paper);
  overflow: hidden;
}
.page-contact .contact-flow::before{
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, rgba(63,115,112,0) 0 46px, rgba(63,115,112,.16) 46px 47px);
  pointer-events: none;
}
.page-contact .contact-flow .wrap{
  position: relative;
  z-index: 1;
}
.page-contact .contact-flow__head{
  max-width: 64ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}
.page-contact .contact-flow .section__label{
  color: var(--celadon);
}
.page-contact .contact-flow .section__title{
  color: var(--white);
}
.page-contact .contact-flow__lede{
  margin: 12px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: rgba(243,233,215,.78);
}
.page-contact .contact-flow__media{
  margin: 0 0 clamp(24px, 3.4vw, 38px);
  border: 1px solid rgba(184,111,59,.45);
  background: rgba(255,253,247,.04);
}
.page-contact .contact-flow__media img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1400 / 800;
  object-fit: cover;
}
.page-contact .contact-flow__media .media__caption{
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--celadon);
  border-top: 1px solid rgba(184,111,59,.28);
}

.page-contact .flow-steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-contact .flow-step{
  position: relative;
  padding-top: 20px;
  border-top: 2px solid rgba(184,111,59,.5);
  transition: border-color .25s ease, transform .25s ease;
}
.page-contact .flow-step::before{
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 11px;
  height: 11px;
  background: var(--copper);
  transform: rotate(45deg);
  transition: background .25s ease, transform .25s ease;
}
.page-contact .flow-step:hover{
  border-color: var(--tangerine);
  transform: translateY(-3px);
}
.page-contact .flow-step:hover::before{
  background: var(--tangerine);
  transform: rotate(45deg) scale(1.15);
}
.page-contact .flow-step__no{
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--copper);
  margin-bottom: 8px;
}
.page-contact .flow-step__title{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.8vw, 20px);
  letter-spacing: .02em;
  color: var(--white);
}
.page-contact .flow-step__desc{
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(243,233,215,.76);
}

/* 合作与纠错 */
.page-contact .contact-collab{
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--celadon);
  color: var(--ink);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.page-contact .contact-collab__inner{
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}
.page-contact .contact-collab__media{
  margin: 0;
  border: 1px solid rgba(11,36,34,.36);
  box-shadow: 9px 9px 0 rgba(11,36,34,.16);
  background: var(--paper);
}
.page-contact .contact-collab__media img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.page-contact .contact-collab__copy .section__label{
  color: var(--karst-deep);
}
.page-contact .contact-collab__copy .section__title{
  color: var(--ink);
}
.page-contact .contact-collab__copy p{
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ink);
}
.page-contact .contact-collab__mail{
  margin-top: clamp(20px, 2.6vw, 28px);
  padding: 14px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  background: var(--white);
  border: 1px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(184,111,59,.28);
}
.page-contact .contact-collab__mail-label{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--karst);
}
.page-contact .contact-collab__addr{
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--ink);
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
  cursor: copy;
}

/* 底部辅助带 */
.page-contact .contact-tail{
  margin-top: clamp(32px, 4.4vw, 58px);
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  justify-content: space-between;
  align-items: center;
}
.page-contact .contact-tail__text{
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.74;
  color: var(--ink-soft);
}
.page-contact .contact-tail__links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-contact .contact-tail__link{
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  background: rgba(255,253,247,.6);
  border: 1px solid var(--line-strong);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.page-contact .contact-tail__link:hover{
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}
.page-contact .contact-tail__link:focus-visible{
  outline: 2px solid var(--tangerine);
  outline-offset: 3px;
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

/* 桌面增强 */
@media (min-width: 900px){
  .page-contact .contact-hero{
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
    gap: clamp(32px, 4.4vw, 68px);
  }
  .page-contact .contact-card{
    transform: rotate(-1.1deg) translateY(-6px);
    transition: transform .3s ease;
  }
  .page-contact .contact-card:hover{
    transform: rotate(-.3deg) translateY(-10px);
  }
  .page-contact .contact-prepare__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-contact .flow-steps{
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-contact .flow-step{
    border-top: 0;
    border-left: 1px solid rgba(169,207,194,.3);
    padding: 0 clamp(12px, 1.6vw, 22px);
  }
  .page-contact .flow-step:first-child{
    border-left: 0;
    padding-left: 0;
  }
  .page-contact .flow-step::before{
    top: 4px;
    left: -6px;
  }
  .page-contact .flow-step:first-child::before{
    left: 0;
  }
  .page-contact .contact-collab__inner{
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: clamp(32px, 5vw, 76px);
  }
}

@media (min-width: 1080px){
  .page-contact .contact-head__title{
    max-width: 14em;
  }
  .page-contact .contact-hero__lead{
    padding-right: clamp(0px, 2vw, 24px);
  }
}

/* 减弱动效偏好 */
@media (prefers-reduced-motion: reduce){
  .page-contact .contact-card,
  .page-contact .prep-item,
  .page-contact .flow-step,
  .page-contact .contact-tail__link{
    transition: none;
  }
  .page-contact .contact-card{
    transform: none;
  }
  .page-contact .contact-card:hover,
  .page-contact .prep-item:hover,
  .page-contact .flow-step:hover{
    transform: none;
  }
}
<<<END>>>