.page-contact{
  --ct-space: clamp(22px, 4vw, 48px);
  --ct-pad: clamp(20px, 3vw, 34px);
  --ct-radius: 18px;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(42px, 7vw, 96px);
}

.page-contact a{
  color: var(--signal-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.page-contact a:hover,
.page-contact a:focus-visible{
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .breadcrumbs{
  margin: clamp(16px, 3vw, 28px) 0 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .eyebrow{
  margin: 0 0 14px;
}

/* ---------- 首屏：非对称双栏 ---------- */
.page-contact .contact-hero{
  padding: clamp(18px, 3vw, 34px) 0 clamp(34px, 5vw, 68px);
  border-bottom: 1px solid var(--line);
}
.page-contact .contact-hero__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-space);
  align-items: start;
}
.page-contact .contact-hero h1{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 6.6vw, 76px);
  line-height: 1.02;
  letter-spacing: .01em;
  margin: 0 0 18px;
  color: var(--paper);
}
.page-contact .contact-hero__intro{
  margin: 0 0 clamp(24px, 3.6vw, 38px);
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}
.page-contact .contact-hero__channel{
  padding: 16px 0 18px;
  border-top: 1px solid var(--line);
}
.page-contact .contact-hero__label{
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-contact .contact-hero__mail{
  margin: 0;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(19px, 5.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--signal-soft);
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
}
.page-contact .contact-hero__tel{
  display: inline-block;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--amber);
  border-bottom: 1px solid rgba(244, 166, 58, .3);
}
.page-contact .contact-hero__channel--phone{
  border-top-color: rgba(244, 166, 58, .35);
}
.page-contact .contact-hero__hint{
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 40ch;
}
.page-contact .contact-hero__figure{
  margin: 0;
}
.page-contact .contact-hero__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}
.page-contact .contact-hero__figure figcaption{
  margin-top: 12px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 通用区块头 ---------- */
.page-contact .contact-sec__head{
  margin-bottom: clamp(20px, 3.2vw, 32px);
}
.page-contact .contact-sec__head h2{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 48px);
  line-height: 1.1;
  margin: 0 0 12px;
  color: var(--paper);
}
.page-contact .contact-sec__sub{
  margin: 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 渠道 ---------- */
.page-contact .contact-channels{
  padding: clamp(34px, 5vw, 68px) 0;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.page-contact .channel-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  overflow: hidden;
}
.page-contact .channel-card{
  background: var(--ink);
  padding: var(--ct-pad);
  transition: background var(--t-base);
}
.page-contact .channel-card:hover{
  background: var(--raise);
}
.page-contact .channel-card--phone:hover{
  background: var(--raise);
}
.page-contact .channel-card__num{
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--signal);
  margin-bottom: 14px;
}
.page-contact .channel-card--phone .channel-card__num{
  color: var(--amber);
}
.page-contact .channel-card__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.25;
  margin: 0 0 12px;
  color: var(--paper);
}
.page-contact .channel-card__value{
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.55;
  color: var(--signal-soft);
  overflow-wrap: anywhere;
}
.page-contact .channel-card--phone .channel-card__value a{
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  color: var(--amber);
}
.page-contact .channel-card--phone .channel-card__value a:hover{
  border-bottom-color: var(--amber);
}
.page-contact .channel-card__note{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 邮件模板 ---------- */
.page-contact .contact-template{
  padding: clamp(34px, 5vw, 68px) 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .contact-template__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-space);
  align-items: start;
}
.page-contact .contact-template__aside h2{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 48px);
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--paper);
}
.page-contact .contact-template__aside p{
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 40ch;
}
.page-contact .contact-template__aside-note{
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  color: var(--paper) !important;
  font-size: 13px !important;
}
.page-contact .contact-template__card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  padding: var(--ct-pad);
  box-shadow: var(--shadow-soft);
}
.page-contact .template-list{
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .template-list li{
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.page-contact .template-list li:last-child{
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .template-list__key{
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
}
.page-contact .template-list__text{
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper);
}
.page-contact .template-sample{
  background: var(--indigo-deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  border-radius: 12px;
  padding: 16px 18px;
}
.page-contact .template-sample__label{
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-contact .template-sample__body{
  margin: 0;
  font-family: var(--font-num);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--signal-soft);
  -webkit-user-select: all;
  user-select: all;
}

/* ---------- 合作与引用 ---------- */
.page-contact .contact-collab{
  padding: clamp(34px, 5vw, 68px) 0;
  background: var(--indigo);
  border-bottom: 1px solid var(--line);
}
.page-contact .contact-collab__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-space);
  align-items: start;
}
.page-contact .contact-collab__copy h2{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 48px);
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--paper);
}
.page-contact .contact-collab__copy p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 247, 243, .82);
  max-width: 50ch;
}
.page-contact .collab-details{
  border: 1px solid rgba(143, 248, 230, .28);
  border-radius: var(--ct-radius);
  background: rgba(5, 16, 13, .35);
  padding: 4px 16px;
}
.page-contact .collab-details__summary{
  cursor: pointer;
  list-style: none;
  padding: 14px 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .01em;
  color: var(--signal-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: color var(--t-fast);
}
.page-contact .collab-details__summary::-webkit-details-marker{
  display: none;
}
.page-contact .collab-details__summary::after{
  content: "+";
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--signal);
}
.page-contact .collab-details[open] .collab-details__summary::after{
  content: "−";
}
.page-contact .collab-details__summary:hover{
  color: var(--signal);
}
.page-contact .collab-details__body{
  padding: 0 0 16px;
  border-top: 1px solid rgba(143, 248, 230, .18);
}
.page-contact .collab-details__body p{
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(242, 247, 243, .78);
}

/* ---------- 处理节奏 ---------- */
.page-contact .contact-flow{
  padding: clamp(34px, 5vw, 68px) 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .flow-list{
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  overflow: hidden;
}
.page-contact .flow-list li{
  background: var(--panel);
  padding: var(--ct-pad);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
}
.page-contact .flow-list__n{
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 15px;
  color: var(--amber);
  padding-top: 2px;
}
.page-contact .flow-list__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--paper);
}
.page-contact .flow-list p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .contact-flow__note{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 60ch;
}

/* ---------- 地址与备案 ---------- */
.page-contact .contact-address{
  padding: clamp(34px, 5vw, 68px) 0 0;
}
.page-contact .contact-address__panel{
  position: relative;
  border: 1px solid var(--line);
  border-radius: calc(var(--ct-radius) + 4px);
  padding: clamp(22px, 3.4vw, 40px);
  background:
    repeating-linear-gradient(to right, rgba(43, 74, 65, .55) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(to bottom, rgba(43, 74, 65, .55) 0 1px, transparent 1px 44px),
    linear-gradient(160deg, var(--panel), var(--ink) 78%);
  overflow: hidden;
}
.page-contact .contact-address__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-space);
  align-items: start;
}
.page-contact .contact-address__copy p{
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 46ch;
}
.page-contact .contact-address__line{
  font-family: var(--font-num);
  font-size: clamp(15px, 2vw, 19px) !important;
  line-height: 1.6 !important;
  color: var(--paper) !important;
}
.page-contact .contact-address__badges{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 !important;
}
.page-contact .contact-address__links{
  margin: 0 !important;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.page-contact .contact-address__figure{
  margin: 0;
}
.page-contact .contact-address__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink);
}
.page-contact .contact-address__figure figcaption{
  margin-top: 10px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px){
  .page-contact .channel-list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .channel-card:first-child{
    grid-column: span 2;
  }
  .page-contact .template-list li{
    grid-template-columns: 96px 1fr;
    gap: 16px;
    align-items: baseline;
  }
  .page-contact .flow-list{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px){
  .page-contact .contact-hero__grid{
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(32px, 4.6vw, 72px);
  }
  .page-contact .contact-hero__figure{
    margin-top: clamp(10px, 2vw, 28px);
  }
  .page-contact .channel-list{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .95fr) minmax(0, .95fr);
  }
  .page-contact .channel-card:first-child{
    grid-column: auto;
  }
  .page-contact .contact-template__grid{
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: clamp(28px, 4vw, 64px);
  }
  .page-contact .contact-template__aside{
    padding-top: 6px;
  }
  .page-contact .contact-collab__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: center;
  }
  .page-contact .contact-address__grid{
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(28px, 4vw, 56px);
  }
}
<<<END>>>