/* ===== 联系通道 / contact ===== */
.page-contact{
  --ct-radius: var(--radius-lg);
  --ct-line: rgba(30, 49, 69, .14);
  --ct-muted: rgba(30, 49, 69, .72);
}

.page-contact .crumbs{
  padding-top: 24px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-contact .hero-contact{
  display: grid;
  gap: 26px;
  padding-top: 12px;
  padding-bottom: 42px;
}

.page-contact .hero-contact h1{
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 7.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  color: var(--paper);
  text-wrap: balance;
}

.page-contact .hero-contact__lead{
  margin: 18px 0 0;
  max-width: 36rem;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-contact .hero-contact__acts{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-contact__media{
  margin: 0;
  border-radius: var(--ct-radius);
  overflow: hidden;
  border: 1px solid var(--steel);
  background: linear-gradient(150deg, var(--board), var(--ink));
  aspect-ratio: 2 / 1;
}

.page-contact .hero-contact__media img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 区块节奏 ---------- */
.page-contact .band{
  padding-top: 34px;
  padding-bottom: 34px;
}

.page-contact .band--duo{
  padding-top: 10px;
  padding-bottom: 8px;
}

/* ---------- 三张通道卡片 ---------- */
.page-contact .channels__grid{
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .channel-card{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 22px 26px;
  border-radius: var(--radius-md);
  border: 1px solid var(--steel);
  background: linear-gradient(158deg, rgba(34, 240, 220, .06), rgba(13, 26, 43, 0) 62%), var(--board);
  overflow: hidden;
}

.page-contact .channel-card::before{
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cyan);
}

.page-contact .channel-card--phone::before{
  background: var(--amber);
}

.page-contact .channel-card{
  scroll-margin-top: calc(var(--shell-top) + 24px);
}

.page-contact .channel-card__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .channel-card__value{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 6vw, 1.8rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color .2s var(--ease-out);
}

.page-contact .channel-card__value--mail{
  font-size: clamp(.95rem, 3.7vw, 1.35rem);
}

.page-contact .channel-card__value:hover,
.page-contact .channel-card__value:focus-visible{
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .channel-card__desc{
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .channel-card__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .channel-card__list li{
  position: relative;
  padding-left: 19px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-contact .channel-card__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .channel-card--phone .channel-card__list li::before{
  background: var(--amber);
}

.page-contact .channel-card__meta{
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--steel);
  font-size: .8125rem;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--haze);
}

.page-contact .channels__aside{
  margin: 0;
  border-radius: var(--ct-radius);
  overflow: hidden;
  border: 1px solid var(--steel);
  background: linear-gradient(160deg, var(--board), var(--ink));
  aspect-ratio: 3 / 2;
}

.page-contact .channels__aside img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 反馈与合作双栏 ---------- */
.page-contact .duo{
  display: grid;
  gap: 24px;
}

.page-contact .duo__col{
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px 22px 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--steel);
  background: var(--board);
}

.page-contact .duo__col--coop{
  border-color: rgba(255, 182, 39, .32);
  background: linear-gradient(155deg, rgba(255, 182, 39, .08), rgba(13, 26, 43, 0) 64%), var(--board);
}

.page-contact .duo__text{
  margin: 0;
  max-width: 38rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-contact .duo__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .duo__list li{
  position: relative;
  padding-left: 20px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-contact .duo__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .duo__col--coop .duo__list li::before{
  background: var(--amber);
}

.page-contact .duo__col .btn{
  align-self: flex-start;
  margin-top: 6px;
}

/* ---------- 暖纸区：地址 + 场景 ---------- */
.page-contact .paper-zone{
  margin: 40px clamp(0px, 1.6vw, 22px) 22px;
  padding: 50px clamp(18px, 4.4vw, 58px) 58px;
  background: var(--paper);
  border-radius: var(--ct-radius);
  color: var(--ink);
}

.page-contact .paper-zone__inner{
  max-width: 1140px;
  margin-inline: auto;
  display: grid;
  gap: 44px;
}

.page-contact .paper-zone .chapter__num{
  color: rgba(30, 49, 69, .26);
  -webkit-text-stroke-width: 0;
}

.page-contact .paper-zone .chapter__title{
  color: var(--ink);
}

.page-contact .paper-address{
  margin: 20px 0 0;
  font-style: normal;
  display: grid;
  gap: 8px;
}

.page-contact .paper-address strong{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 4.6vw, 1.5rem);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .paper-address span{
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ct-muted);
}

.page-contact .paper-note{
  margin: 18px 0 0;
  max-width: 34rem;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ct-muted);
}

.page-contact .paper-icp{
  margin: 22px 0 0;
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(30, 49, 69, .09);
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .02em;
  color: rgba(30, 49, 69, .78);
}

.page-contact .scene-list{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .scene-item{
  display: block;
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .62);
  border: 1px solid var(--ct-line);
  color: var(--ink);
  font-size: .9375rem;
  line-height: 1.75;
  text-decoration: none;
  transition: border-color .22s var(--ease-out), background-color .22s var(--ease-out), transform .22s var(--ease-out);
}

.page-contact .scene-item:hover,
.page-contact .scene-item:focus-visible{
  border-color: rgba(34, 240, 220, .85);
  background: rgba(34, 240, 220, .1);
  transform: translateX(3px);
}

.page-contact .scene-item__tag{
  display: inline-block;
  margin-right: 8px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(34, 240, 220, .26);
  color: #08514B;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
}

.page-contact .scene-item__tag--amber{
  background: rgba(255, 182, 39, .32);
  color: #6F460A;
}

.page-contact .scene-item__tag--haze{
  background: rgba(126, 147, 168, .24);
  color: #33475A;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px){
  .page-contact .hero-contact{
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
    gap: 56px;
    padding-top: 22px;
    padding-bottom: 62px;
  }

  .page-contact .band{
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .page-contact .band--duo{
    padding-top: 16px;
    padding-bottom: 14px;
  }

  .page-contact .channels__grid{
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
    margin-top: 32px;
  }

  .page-contact .channel-card--email{
    grid-column: 1 / 6;
    grid-row: 1;
  }

  .page-contact .channel-card--phone{
    grid-column: 6 / 10;
    grid-row: 1;
    margin-top: 54px;
  }

  .page-contact .channel-card--feedback{
    grid-column: 2 / 7;
    grid-row: 2;
  }

  .page-contact .channels__aside{
    grid-column: 7 / 13;
    grid-row: 2;
    align-self: stretch;
    aspect-ratio: auto;
    min-height: 260px;
  }

  .page-contact .duo{
    grid-template-columns: minmax(0, 1.14fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .duo__col{
    padding: 34px 32px 36px;
  }

  .page-contact .paper-zone{
    margin-top: 52px;
    padding-top: 66px;
    padding-bottom: 74px;
  }

  .page-contact .paper-zone__inner{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 64px;
    align-items: start;
  }
}

@media (min-width: 1280px){
  .page-contact .channel-card--email .channel-card__value--mail{
    font-size: 1.4rem;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  .page-contact .scene-item,
  .page-contact .channel-card__value{
    transition: none;
  }

  .page-contact .scene-item:hover,
  .page-contact .scene-item:focus-visible{
    transform: none;
  }
}