/* ===== 联系与反馈 页面专属样式 ===== */

.page-contact{
  --pc-sticky: 26px;
  position: relative;
  overflow-x: clip;
  padding: clamp(22px, 4.5vw, 52px) 0 clamp(56px, 9vw, 110px);
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--fr-sans);
}

.page-contact::before{
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 64%;
  background-image:
    linear-gradient(to right, rgba(217,207,187,.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(217,207,187,.55) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,.3) 62%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,.3) 62%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-shell{
  position: relative;
  z-index: 1;
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible{
  outline: 2px solid var(--clay);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */

.page-contact .bao-crumbs{
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-soft);
}

.page-contact .bao-crumbs__list{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 10px;
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 36px);
  padding: 0;
}

.page-contact .bao-crumbs__list li{
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .bao-crumbs__list li + li::before{
  content: "/";
  color: var(--grid);
}

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

.page-contact .bao-crumbs a:hover{
  color: var(--lake);
  border-bottom-color: var(--lake);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero{
  padding-bottom: clamp(24px, 3.5vw, 42px);
  border-bottom: var(--line-strong);
}

.page-contact .pc-hero__k{
  display: block;
  margin: 0;
}

.page-contact .pc-hero .bao-h1{
  margin: 12px 0 0;
  font-size: clamp(2rem, 5.6vw, 4rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  font-weight: 800;
  max-width: 16em;
}

.page-contact .pc-hero__lede{
  margin: 18px 0 0;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 36em;
}

.page-contact .pc-hero__stats{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .pc-hero__stats li{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--ink-soft);
}

.page-contact .pc-hero__stats li::before{
  content: "";
  width: 7px;
  height: 7px;
  border: 1px solid var(--green);
  border-radius: 50%;
  flex: none;
}

@media (min-width: 940px){
  .page-contact .pc-hero{
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 0 clamp(28px, 4vw, 72px);
    align-items: end;
  }
  .page-contact .pc-hero__k{
    grid-column: 1 / -1;
  }
  .page-contact .pc-hero .bao-h1{
    grid-column: 1;
    margin-top: 14px;
  }
  .page-contact .pc-hero__lede{
    grid-column: 2;
    margin-top: 0;
    padding-bottom: 4px;
  }
  .page-contact .pc-hero__stats{
    grid-column: 1 / -1;
    margin-top: 28px;
  }
}

/* ---------- 双栏工作区 ---------- */

.page-contact .pc-top{
  display: grid;
  gap: clamp(26px, 3.4vw, 48px);
  margin-top: clamp(34px, 5vw, 64px);
}

@media (min-width: 940px){
  .page-contact .pc-top{
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }
  .page-contact .pc-side{
    position: sticky;
    top: var(--pc-sticky);
  }
}

/* 左侧信息卡 */

.page-contact .pc-card{
  background: var(--card);
  border: var(--hair);
  border-radius: var(--r);
  box-shadow: 0 16px 36px -32px rgba(34, 30, 26, .9);
  overflow: hidden;
}

.page-contact .pc-card__figure{
  margin: 0;
  border-bottom: var(--hair);
  background: var(--grid);
}

.page-contact .pc-card__figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 880 / 560;
  object-fit: cover;
  filter: saturate(.6) contrast(.95) brightness(1.02);
}

.page-contact .pc-card__body{
  padding: clamp(18px, 2.4vw, 26px);
}

.page-contact .pc-card__body .bao-h2{
  margin: 8px 0 14px;
  font-size: clamp(1.2rem, 1.9vw, 1.5rem);
  line-height: 1.3;
}

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

.page-contact .pc-channel{
  padding: 15px 0;
  border-top: var(--hair);
}

.page-contact .pc-channel:first-child{
  border-top: 0;
  padding-top: 4px;
}

.page-contact .pc-channel__label{
  display: block;
  margin-bottom: 6px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--ink-soft);
}

.page-contact .pc-channel__value{
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__value.bao-mono{
  font-family: var(--fr-mono);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--lake);
}

.page-contact .pc-channel__use{
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .pc-card__note{
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: var(--hair);
  font-size: 12.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 右侧提交要点 */

.page-contact .pc-form{
  padding-top: clamp(4px, 1vw, 12px);
}

.page-contact .pc-form .bao-h2{
  margin: 8px 0 12px;
  font-size: clamp(1.5rem, 2.6vw, 2.05rem);
  line-height: 1.25;
  letter-spacing: -.01em;
}

.page-contact .pc-form__lede{
  margin: 0;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .pc-fields{
  list-style: none;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
}

.page-contact .pc-field{
  position: relative;
  padding: 16px 0;
  border-bottom: var(--hair);
}

.page-contact .pc-field:first-child{
  border-top: var(--hair);
}

.page-contact .pc-field::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 0;
  background: var(--green);
  transition: width .25s ease;
}

.page-contact .pc-field:hover::after,
.page-contact .pc-field:focus-within::after{
  width: 100%;
}

.page-contact .pc-field__name{
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-contact .pc-field__hint{
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

@media (min-width: 620px){
  .page-contact .pc-field{
    display: grid;
    grid-template-columns: 138px minmax(0, 1fr);
    gap: 0 22px;
    align-items: baseline;
  }
  .page-contact .pc-field__hint{
    margin-top: 0;
  }
}

/* ---------- 处理流程 ---------- */

.page-contact .pc-flow__lede{
  margin: 12px 0 0;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .pc-stages{
  list-style: none;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-stage{
  position: relative;
  padding: 20px 0;
  border-top: var(--hair);
}

.page-contact .pc-stage:last-child{
  border-bottom: var(--hair);
}

.page-contact .pc-stage::after{
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  height: 1px;
  width: 0;
  background: var(--green);
  transition: width .3s ease;
}

.page-contact .pc-stage:hover::after,
.page-contact .pc-stage:focus-within::after{
  width: 100%;
}

.page-contact .pc-stage__num{
  display: block;
  font-family: var(--fr-mono);
  font-size: 19px;
  letter-spacing: .04em;
  color: var(--grid);
  transition: color .35s ease;
}

.page-contact .pc-stage.is-in .pc-stage__num{
  color: var(--green);
}

.page-contact .pc-stage__title{
  margin: 6px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-contact .pc-stage__note{
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

@media (min-width: 780px){
  .page-contact .pc-stage{
    grid-template-columns: 88px minmax(0, .95fr) minmax(0, 1.55fr);
    gap: 0 30px;
    align-items: start;
    padding: 22px 0;
    display: grid;
  }
  .page-contact .pc-stage__title{
    margin-top: 0;
  }
  .page-contact .pc-stage__note{
    margin-top: 0;
  }
}

/* ---------- 合作与商务咨询 ---------- */

.page-contact .pc-biz__grid{
  display: grid;
  gap: clamp(26px, 3.4vw, 52px);
}

@media (min-width: 940px){
  .page-contact .pc-biz__grid{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }
}

.page-contact .pc-biz .bao-h2{
  margin: 8px 0 14px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.25;
}

.page-contact .pc-biz p{
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .pc-biz__col > p:first-of-type{
  color: var(--ink);
}

.page-contact .pc-details{
  margin: 18px 0 20px;
  background: var(--card);
  border: var(--hair);
  border-radius: var(--r);
  overflow: hidden;
}

.page-contact .pc-details > summary{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
  transition: background-color var(--ease);
}

.page-contact .pc-details > summary::-webkit-details-marker{
  display: none;
}

.page-contact .pc-details > summary:hover{
  background: rgba(217, 207, 187, .3);
}

.page-contact .pc-details > summary::before{
  content: "+";
  font-family: var(--fr-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--clay);
}

.page-contact .pc-details[open] > summary::before{
  content: "−";
}

.page-contact .pc-details__list{
  list-style: none;
  margin: 0;
  padding: 4px 18px 14px;
  border-top: var(--hair);
}

.page-contact .pc-details__list li{
  position: relative;
  padding: 11px 0 11px 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  border-bottom: var(--hair);
}

.page-contact .pc-details__list li:last-child{
  border-bottom: 0;
}

.page-contact .pc-details__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--sand);
}

.page-contact .pc-biz__link{
  margin: 0;
  font-size: 14.5px;
}

.page-contact .pc-biz a{
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--lake-soft);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .pc-biz a:hover{
  color: var(--clay);
  border-bottom-color: var(--clay);
}

.page-contact .pc-biz__figure{
  margin: 0;
}

.page-contact .pc-media-800{
  background: var(--card);
  border: var(--hair);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: 0 16px 36px -32px rgba(34, 30, 26, .9);
}

.page-contact .pc-media-800 img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 520;
  object-fit: cover;
  filter: saturate(.6) contrast(.94) brightness(1.02);
}

.page-contact .pc-biz__cap{
  margin: 10px 0 0;
  font-size: 12.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 常见问题自查 ---------- */

.page-contact .pc-self__grid{
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3vw, 38px);
  background: var(--grid);
  border: var(--hair);
  border-radius: var(--r);
  overflow: hidden;
}

@media (min-width: 700px){
  .page-contact .pc-self__grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .pc-tip{
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--card);
}

.page-contact .pc-tip::before{
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  margin-bottom: 4px;
  background: var(--green-soft);
  transition: width var(--ease), background-color var(--ease);
}

.page-contact .pc-tip:hover::before{
  width: 46px;
  background: var(--green);
}

.page-contact .pc-tip__title{
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .pc-tip p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .pc-tip a{
  align-self: flex-start;
  margin-top: auto;
  padding-top: 10px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .pc-tip a:hover{
  color: var(--green);
  border-bottom-color: var(--green);
}

/* ---------- 动效收敛 ---------- */

@media (prefers-reduced-motion: reduce){
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after{
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>