.page-contact{
  --contact-hair: 1px solid rgba(220,205,178,.26);
  background: var(--c-ink-900);
  color: var(--c-paper-100);
  padding-bottom: clamp(48px,7vw,96px);
}

.page-contact .mono{ font-family: var(--font-mono); }

/* 面包屑 */
.page-contact .crumbs{
  padding-top: clamp(16px,2.4vw,28px);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: rgba(244,234,215,.62);
}
.page-contact .crumbs ol{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5em;
}
.page-contact .crumbs li + li::before{
  content: "/";
  margin-right: .5em;
  color: rgba(244,234,215,.3);
}
.page-contact .crumbs a{
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .crumbs a:hover{ color: var(--c-paper-100); border-bottom-color: var(--c-amber-500); }
.page-contact .crumbs [aria-current="page"]{ color: var(--c-amber-500); }

/* 首屏 */
.page-contact .contact-hero{
  display: grid;
  gap: clamp(20px,3vw,36px);
  padding-block: clamp(24px,4vw,44px) clamp(28px,4vw,52px);
  border-bottom: var(--contact-hair);
}
.page-contact .kicker{
  margin: 0 0 .9em;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--c-amber-500);
}
.page-contact h1{
  margin: 0;
  font-family: var(--font-condensed);
  font-weight: 900;
  font-size: clamp(29px,5.6vw,56px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--c-paper-100);
}
.page-contact .contact-hero__lede{
  margin: clamp(14px,2vw,20px) 0 0;
  max-width: 48ch;
  font-size: clamp(15px,1.15vw,16.5px);
  line-height: 1.8;
  color: rgba(244,234,215,.82);
}
.page-contact .contact-hero__media{
  margin: 0;
  border: var(--contact-hair);
  overflow: hidden;
}
.page-contact .contact-hero__media img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: sepia(.16) saturate(.85) contrast(1.04) brightness(.93);
}

/* 双栏主体 */
.page-contact .contact-body{
  display: grid;
  gap: clamp(20px,3vw,36px);
  padding-top: clamp(28px,4vw,48px);
}

/* 左侧联络面板 */
.page-contact .contact-panel{
  background: var(--c-ink-700);
  border: 1px solid rgba(243,206,146,.26);
  padding: clamp(18px,2.6vw,28px);
}
.page-contact .contact-panel__label{
  margin: 0 0 1.3em;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--c-crt-400);
}
.page-contact .contact-panel__cap{
  display: block;
  margin-bottom: .45em;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: rgba(244,234,215,.6);
}
.page-contact .contact-panel__mailaddr{
  display: block;
  font-size: clamp(17px,2.5vw,24px);
  line-height: 1.35;
  color: var(--c-amber-200);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px dashed rgba(243,206,146,.42);
  padding-bottom: .12em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .contact-panel__mailaddr:hover{
  color: var(--c-amber-500);
  border-bottom-color: var(--c-amber-500);
}
.page-contact .copy-btn{
  margin-top: 1em;
  padding: .55em 1.05em;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--c-ink-900);
  background: var(--c-amber-500);
  border: 1px solid var(--c-amber-500);
  border-radius: 0;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .copy-btn:hover{ background: var(--c-amber-200); border-color: var(--c-amber-200); }
.page-contact .copy-btn:focus-visible{ outline: 2px solid var(--c-crt-400); outline-offset: 2px; }

.page-contact .contact-facts{
  margin: clamp(18px,2.4vw,26px) 0 0;
  padding-top: clamp(12px,1.8vw,18px);
  border-top: var(--contact-hair);
}
.page-contact .contact-facts__row{
  display: grid;
  grid-template-columns: 5.2em minmax(0,1fr);
  gap: .8em;
  padding: .72em 0;
  border-bottom: 1px solid rgba(220,205,178,.13);
}
.page-contact .contact-facts dt{
  font-size: 11.5px;
  letter-spacing: .06em;
  color: rgba(244,234,215,.52);
}
.page-contact .contact-facts dd{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-paper-100);
}
.page-contact .contact-facts dd a{
  color: var(--c-paper-100);
  text-decoration: none;
  border-bottom: 1px solid rgba(243,206,146,.45);
}
.page-contact .contact-facts dd a:hover{ border-bottom-color: var(--c-amber-500); }
.page-contact .contact-panel__note{
  margin: 1.1em 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(244,234,215,.6);
}

/* 右侧纸面 */
.page-contact .contact-flow{
  background: var(--c-paper-100);
  color: var(--c-graphite-800);
  border: 1px solid var(--c-paper-300);
  padding: clamp(20px,3vw,38px);
}
.page-contact .flow-block + .flow-block{
  margin-top: clamp(22px,3vw,34px);
  padding-top: clamp(18px,2.8vw,30px);
  border-top: 1px solid rgba(32,33,31,.16);
}
.page-contact .flow-block__index{
  margin: 0 0 .5em;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-rust-600);
}
.page-contact .flow-block h2{
  margin: 0 0 .65em;
  font-family: var(--font-condensed);
  font-size: clamp(20px,2.6vw,27px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--c-graphite-800);
}
.page-contact .flow-block > p{
  margin: 0 0 .9em;
  font-size: 14.5px;
  line-height: 1.8;
  color: #2d2e2b;
}
.page-contact .flow-block > p:last-child{ margin-bottom: 0; }

/* 渠道行 */
.page-contact .channel-rows{
  list-style: none;
  margin: 1.2em 0 0;
  padding: 0;
  border-top: 1px solid rgba(32,33,31,.16);
}
.page-contact .channel-row{
  display: grid;
  grid-template-columns: 2.4rem minmax(0,1fr);
  gap: .35em .9em;
  padding: .95em .5em .95em .15em;
  border-bottom: 1px solid rgba(32,33,31,.16);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-contact .channel-row:hover{
  border-left-color: var(--c-amber-500);
  background: rgba(220,205,178,.3);
}
.page-contact .channel-row__icon{
  grid-row: 1 / span 3;
  align-self: start;
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--c-graphite-800);
  font-size: 11.5px;
  color: var(--c-graphite-800);
}
.page-contact .channel-row__name{
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-graphite-800);
}
.page-contact .channel-row__fit{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: #4b4c48;
}
.page-contact .channel-row__use{
  margin: .15em 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-slate-500);
  overflow-wrap: anywhere;
}
.page-contact .channel-row__use a{
  color: var(--c-ink-700);
  text-decoration: none;
  border-bottom: 1px solid rgba(227,155,58,.7);
}
.page-contact .channel-row__use a:hover{ border-bottom-color: var(--c-rust-600); }

/* 准备清单 */
.page-contact .prep-list{
  list-style: none;
  margin: 1.1em 0 0;
  padding: 0;
  display: grid;
  gap: .6em;
}
.page-contact .prep-item{
  display: grid;
  grid-template-columns: 1.15rem minmax(0,1fr) 2.1rem;
  gap: .8em;
  align-items: start;
  padding: .8em .85em;
  background: rgba(220,205,178,.24);
  border: 1px solid rgba(32,33,31,.16);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-contact .prep-item:hover{ border-color: rgba(32,33,31,.42); }
.page-contact .prep-item input{
  appearance: none;
  -webkit-appearance: none;
  width: 1.15rem;
  height: 1.15rem;
  margin: .2em 0 0;
  padding: 0;
  position: relative;
  border: 1px solid var(--c-slate-500);
  background: transparent;
  cursor: pointer;
}
.page-contact .prep-item input:checked{
  background: var(--c-amber-500);
  border-color: var(--c-amber-500);
}
.page-contact .prep-item input:checked::after{
  content: "";
  position: absolute;
  left: .3rem;
  top: .08rem;
  width: .32rem;
  height: .62rem;
  border-right: 2px solid var(--c-ink-900);
  border-bottom: 2px solid var(--c-ink-900);
  transform: rotate(45deg);
}
.page-contact .prep-item input:focus-visible{
  outline: 2px solid var(--c-amber-500);
  outline-offset: 2px;
}
.page-contact .prep-body{
  grid-column: 2;
  font-size: 13.5px;
  line-height: 1.75;
  color: #2d2e2b;
}
.page-contact .prep-body strong{
  display: block;
  margin-bottom: .15em;
  font-size: 14.5px;
  letter-spacing: .02em;
  color: var(--c-graphite-800);
}
.page-contact .prep-num{
  grid-column: 3;
  font-size: 11px;
  text-align: center;
  padding: .2em .15em;
  border: 1px solid rgba(32,33,31,.34);
  color: var(--c-graphite-800);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .prep-item:has(input:checked) .prep-num{
  background: var(--c-amber-500);
  border-color: var(--c-amber-500);
  color: var(--c-ink-900);
}

.page-contact .prep-figure{
  margin: 1.1em 0 0;
  border: 1px solid rgba(32,33,31,.2);
}
.page-contact .prep-figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: sepia(.12) saturate(.88) contrast(1.03);
}

.page-contact .note-template{
  margin: 1.1em 0 0;
  padding: .9em 1em;
  background: rgba(32,33,31,.06);
  border-left: 3px solid var(--c-amber-500);
}
.page-contact .note-template__cap{
  margin: 0 0 .55em;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-slate-500);
}
.page-contact .note-template__body{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  color: #2d2e2b;
  white-space: pre-line;
  overflow-wrap: anywhere;
}

/* 响应节奏 */
.page-contact .timing-list{
  list-style: none;
  margin: 1.1em 0 0;
  padding: 0;
}
.page-contact .timing-list li{
  display: grid;
  grid-template-columns: 6.4em minmax(0,1fr);
  gap: .9em;
  padding: .78em 0;
  border-top: 1px solid rgba(32,33,31,.14);
  font-size: 14px;
  line-height: 1.75;
  color: #2d2e2b;
}
.page-contact .timing-list li:last-child{ border-bottom: 1px solid rgba(32,33,31,.14); }
.page-contact .timing-list .mono{
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-rust-600);
}

/* 反馈清单 */
.page-contact .bullet-list{
  list-style: none;
  margin: 1em 0 1.1em;
  padding: 0;
  display: grid;
  gap: .58em;
}
.page-contact .bullet-list li{
  position: relative;
  padding-left: 1.3em;
  font-size: 14px;
  line-height: 1.75;
  color: #2d2e2b;
}
.page-contact .bullet-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .5em;
  height: .5em;
  background: var(--c-amber-500);
}

/* 通信地址 */
.page-contact .addr{
  margin: 1em 0 .85em;
  padding: .9em 1em;
  border: 1px dashed rgba(32,33,31,.36);
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--c-graphite-800);
  overflow-wrap: anywhere;
}

/* 延伸入口 */
.page-contact .flow-next{
  margin-top: clamp(22px,3vw,34px);
  padding-top: clamp(18px,2.4vw,24px);
  border-top: 1px solid rgba(32,33,31,.16);
}
.page-contact .flow-next__cap{
  margin: 0 0 .8em;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-slate-500);
}
.page-contact .flow-next ul{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55em;
}
.page-contact .flow-next a{
  display: inline-block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ink-700);
  text-decoration: none;
  border-bottom: 1px solid rgba(227,155,58,.55);
  padding-bottom: .08em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .flow-next a:hover{
  color: var(--c-graphite-800);
  border-bottom-color: var(--c-amber-500);
}

/* 断点 */
@media (min-width: 760px){
  .page-contact .channel-row{
    grid-template-columns: 2.3rem 8.4em minmax(0,1fr) minmax(0,13.5em);
    align-items: center;
    gap: .9em;
    padding: 1em .6em 1em .2em;
  }
  .page-contact .channel-row__icon{ grid-row: auto; }
  .page-contact .channel-row__use{ margin: 0; }
}

@media (min-width: 900px){
  .page-contact .contact-hero{
    grid-template-columns: minmax(0,1.02fr) minmax(0,.98fr);
    align-items: end;
    gap: clamp(24px,3.4vw,56px);
  }
  .page-contact .contact-hero__media img{ aspect-ratio: 2 / 1; }
}

@media (min-width: 980px){
  .page-contact .contact-body{
    grid-template-columns: minmax(0,5fr) minmax(0,7fr);
    align-items: start;
  }
  .page-contact .contact-panel{
    position: sticky;
    top: 88px;
  }
}

@media (max-width: 400px){
  .page-contact .contact-facts__row{ grid-template-columns: 4.6em minmax(0,1fr); }
  .page-contact .timing-list li{ grid-template-columns: minmax(0,1fr); gap: .2em; }
  .page-contact .prep-item{ grid-template-columns: 1.15rem minmax(0,1fr); }
  .page-contact .prep-num{ grid-column: 2; justify-self: start; margin-top: .3em; }
}