.page-contact{
  --pc-pad: 22px;
  --pc-gap: 22px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-top: calc(var(--header-h) + var(--track-h));
  padding-bottom: 56px;
}

.page-contact .contact-hero{
  position: relative;
  padding: 26px 0 34px;
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

.page-contact .contact-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(36,74,94,.55) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, rgba(11,59,52,.55) 0 1px, transparent 1px 84px);
  opacity: .55;
  pointer-events: none;
}

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

.page-contact .breadcrumb__a{
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-contact .breadcrumb__a:hover,
.page-contact .breadcrumb__a:focus-visible{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-contact .breadcrumb__item{
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-contact .eyebrow{
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin: 18px 0 12px;
}

.page-contact h1{
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 34px;
  line-height: 1.04;
  letter-spacing: -.03em;
  margin: 0 0 16px;
  color: var(--paper);
  max-width: 15em;
}

.page-contact .contact-hero__lead{
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 22px;
  max-width: 46em;
}

.page-contact .contact-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-contact .contact-hero__meta{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px dashed var(--line);
  padding-top: 18px;
}
.page-contact .contact-hero__meta li{
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-contact .contact-hero__num{
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
  min-width: 2.4em;
}

.page-contact .contact-hero__figure{
  margin: 0;
  position: relative;
}
.page-contact .contact-hero__figure .figure__img,
.page-contact .contact-hero__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  background: var(--panel);
  border: 1px solid var(--line);
}
.page-contact .figure__caption{
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
}

/* 联系板 */
.page-contact .contact-board{
  display: grid;
  gap: 26px;
  padding-top: 34px;
}

.page-contact .contact-rail{
  background: var(--pine);
  border: 1px solid var(--line);
  padding: 22px 20px 24px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  position: relative;
}
.page-contact .contact-rail::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--signal), var(--cyan));
}

.page-contact .contact-rail__title{
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 0 0 10px;
  color: var(--paper);
}
.page-contact .contact-rail__intro{
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
  margin: 0 0 20px;
}

.page-contact .reach-list{
  margin: 0;
  display: grid;
  gap: 14px;
}
.page-contact .reach-list__row{
  border-top: 1px solid rgba(43,240,208,.18);
  padding-top: 12px;
}
.page-contact .reach-list__label{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--cyan);
  margin-bottom: 5px;
  text-transform: uppercase;
}
.page-contact .reach-list__value{
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}
.page-contact .reach-list__value--mono{
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: .01em;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-rail__note{
  margin: 20px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
  background: rgba(6,24,38,.45);
  border-left: 2px solid var(--signal);
  padding: 10px 12px;
}

.page-contact .reach-tags{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 正文区 */
.page-contact .contact-main{
  display: grid;
  gap: 40px;
  min-width: 0;
}

.page-contact .contact-sec{
  padding-top: 4px;
}
.page-contact .contact-sec + .contact-sec{
  border-top: 1px solid var(--line);
  padding-top: 34px;
}

.page-contact .contact-sec__head{
  margin-bottom: 22px;
}
.page-contact .contact-sec__num{
  font-family: var(--font-mono);
  font-size: 44px;
  line-height: 1;
  font-weight: 700;
  margin: 0 0 8px;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--cyan);
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.page-contact .contact-sec__title{
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 0 0 12px;
  color: var(--paper);
}
.page-contact .contact-sec__lead{
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 52em;
}

/* 合作形式 */
.page-contact .scene-grid{
  display: grid;
  gap: 14px;
}
.page-contact .scene-card{
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 18px 18px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color var(--ease), background-color var(--ease), transform var(--ease);
}
.page-contact .scene-card:hover,
.page-contact .scene-card:focus-within{
  border-color: var(--cyan);
  background: #12344f;
  transform: translateY(-2px);
}
.page-contact .scene-card__form{
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(43,240,208,.22);
}
.page-contact .scene-card__body{
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 12px;
}
.page-contact .scene-card__fit{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--cyan);
  margin: 0;
}

.page-contact .scene-foot{
  margin-top: 18px;
  display: grid;
  gap: 14px;
  align-items: start;
  background: var(--pine);
  padding: 18px;
  border-left: 3px solid var(--signal);
}
.page-contact .scene-foot__text{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 反馈清单 */
.page-contact .check-grid{
  display: grid;
  gap: 22px;
}
.page-contact .check-list{
  display: grid;
  gap: 10px;
}
.page-contact .check{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 13px 14px;
  cursor: pointer;
  transition: border-color var(--ease), background-color var(--ease);
}
.page-contact .check:hover{
  border-color: var(--line);
  background: #12344f;
}
.page-contact .check:focus-within{
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(43,240,208,.25) inset;
}
.page-contact .check__box{
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  border: 1px solid var(--line);
  background: var(--ink);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: background-color var(--ease), border-color var(--ease);
}
.page-contact .check__box::after{
  content: "";
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
  transition: opacity var(--ease);
}
.page-contact .check__box:checked{
  background: var(--signal);
  border-color: var(--signal);
}
.page-contact .check__box:checked::after{
  opacity: 1;
}
.page-contact .check__box:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .check__text{
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
}
.page-contact .check__box:checked + .check__text{
  color: var(--mist);
  text-decoration: line-through;
  text-decoration-color: var(--line);
}
.page-contact .check-list__note{
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-contact .check-figure{
  margin: 0;
}
.page-contact .check-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

/* 流程 */
.page-contact .flow{
  display: grid;
  gap: 12px;
}
.page-contact .step{
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  transition: border-color var(--ease), background-color var(--ease);
}
.page-contact .step:hover{
  border-left-color: var(--cyan);
}
.page-contact .step[open]{
  background: #12344f;
  border-left-color: var(--signal);
}
.page-contact .step__summary{
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
}
.page-contact .step__summary::-webkit-details-marker{
  display: none;
}
.page-contact .step__summary:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-contact .step__num{
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  flex: 0 0 auto;
}
.page-contact .step__title{
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
  flex: 1 1 auto;
}
.page-contact .step__hint{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  white-space: nowrap;
}
.page-contact .step[open] .step__hint{
  color: var(--signal);
}
.page-contact .step__body{
  padding: 0 16px 16px 43px;
}
.page-contact .step__body p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 时间与响应 */
.page-contact .hours-grid{
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}
.page-contact .hours-item{
  background: var(--pine);
  border: 1px solid var(--line);
  padding: 16px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.page-contact .hours-item__num{
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--cyan);
  margin: 0 0 8px;
  font-variant-numeric: tabular-nums;
}
.page-contact .hours-item__label{
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  margin: 0;
}
.page-contact .hours-note{
  border-top: 1px dashed var(--line);
  padding-top: 18px;
  display: grid;
  gap: 12px;
}
.page-contact .hours-note p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 54em;
}

/* 延伸阅读 */
.page-contact .contact-sec--more{
  padding-bottom: 8px;
}
.page-contact .more-links{
  display: grid;
  gap: 10px;
}
.page-contact .more-link{
  display: grid;
  gap: 6px;
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 15px 16px;
  transition: border-color var(--ease), background-color var(--ease), transform var(--ease);
}
.page-contact .more-link:hover,
.page-contact .more-link:focus-visible{
  border-color: var(--cyan);
  background: #12344f;
  transform: translateX(3px);
}
.page-contact .more-link__title{
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -.01em;
  position: relative;
  padding-right: 22px;
}
.page-contact .more-link__title::after{
  content: "↗";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--signal);
  font-family: var(--font-mono);
}
.page-contact .more-link__desc{
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

@media (max-width: 419px){
  .page-contact h1{ font-size: 28px; }
  .page-contact .contact-sec__num{ font-size: 36px; }
}

@media (min-width: 720px){
  .page-contact .contact-hero__meta{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .page-contact .contact-hero__meta li{
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .page-contact .contact-hero__num{ font-size: 26px; }
  .page-contact .scene-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-contact .scene-foot{
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-contact .check-grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
  .page-contact .hours-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-contact .more-links{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px){
  .page-contact{ --pc-pad: 28px; padding-bottom: 80px; }
  .page-contact .contact-hero{ padding: 40px 0 52px; }
  .page-contact h1{ font-size: 52px; max-width: 12em; }
  .page-contact .contact-hero__lead{ font-size: 16.5px; }
  .page-contact .contact-hero__grid{
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 44px;
  }
  .page-contact .contact-board{
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 44px;
    padding-top: 48px;
    align-items: start;
  }
  .page-contact .contact-rail{
    position: sticky;
    top: calc(var(--header-h) + var(--track-h) + 20px);
    padding: 24px 22px 26px;
  }
  .page-contact .contact-sec__num{ font-size: 60px; margin-bottom: 12px; }
  .page-contact .contact-sec__title{ font-size: 30px; }
  .page-contact .contact-sec__lead{ font-size: 15.5px; }
  .page-contact .scene-grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-contact .hours-grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-contact .contact-main{ gap: 48px; }
  .page-contact .step:nth-child(even){ margin-left: 26px; }
}
<<<END>>>