.page-contact{
  --pc-card: rgba(10,26,47,.72);
  --pc-card-soft: rgba(17,50,80,.42);
}

/* ---------- 章节节奏 ---------- */
.page-contact .section{ padding-block: 48px; }
.page-contact .contact-hero{
  padding-block: 24px 56px;
  background:
    radial-gradient(880px 400px at 92% -14%, rgba(37,217,210,.13), transparent 62%),
    radial-gradient(680px 360px at 2% 6%, rgba(255,107,44,.10), transparent 60%);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumb{ margin-bottom: 28px; }

/* ---------- 首屏 ---------- */
.page-contact .hero-grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 32px;
}
.page-contact .hero-main{ min-width: 0; }
.page-contact .contact-hero h1{
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8.4vw, 74px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper-100);
}
.page-contact .hero-lede{
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-soft);
}
.page-contact .hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}
.page-contact .hero-facts{
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}
.page-contact .hero-facts .mono{
  display: inline-block;
  min-width: 4.6em;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-100);
}

/* ---------- 坐标面板 ---------- */
.page-contact .coord-panel{
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 24px 24px 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-block);
  background: linear-gradient(180deg, rgba(17,50,80,.58), rgba(10,26,47,.94));
}
.page-contact .coord-panel::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .55;
  pointer-events: none;
}
.page-contact .coord-tag{
  position: absolute;
  top: 16px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(140,163,184,.72);
}
.page-contact .coord-label{
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-contact .hours{
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 44px);
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--paper-100);
}
.page-contact .hours-dash{ color: var(--orange); }
.page-contact .coord-sub{
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--text-soft);
}
.page-contact .coord-rule{
  height: 1px;
  background: var(--line-strong);
  margin: 18px 0;
}
.page-contact .coord-address{
  font-style: normal;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-100);
}
.page-contact .coord-note{
  margin: 10px 0 20px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-soft);
}
.page-contact .coord-figure{
  display: block;
  margin: 0 -24px;
}
.page-contact .coord-figure img{
  display: block;
  width: 100%;
  height: 168px;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 章节头部 ---------- */
.page-contact .sec-head{
  margin-bottom: 32px;
  max-width: 64ch;
}
.page-contact .sec-title{
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.8vw, 40px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper-100);
}
.page-contact .sec-lede{
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 通道卡片 ---------- */
.page-contact .channels{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 16px;
}
.page-contact .channel-card{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  background: var(--pc-card);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .channel-card:hover{
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.page-contact .channel-card--accent{
  border-color: rgba(255,107,44,.45);
  background:
    linear-gradient(158deg, rgba(255,107,44,.14), rgba(10,26,47,.86) 68%);
}
.page-contact .chan-kind{
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate-400);
}
.page-contact .chan-val{
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 2.6vw, 22px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper-100);
  overflow-wrap: anywhere;
}
.page-contact .chan-val--sm{
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
}
.page-contact .chan-use{
  flex: 1;
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
}
.page-contact .copy-btn{
  align-self: flex-start;
  margin-top: 4px;
  padding: 7px 15px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--paper-100);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-contact .copy-btn:hover{
  border-color: var(--orange);
  color: var(--orange);
}
.page-contact .copy-btn[data-copied="true"]{
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(37,217,210,.1);
}

/* ---------- 通道示意图 ---------- */
.page-contact .band-media{
  margin: 24px 0 0;
  border-radius: var(--radius-block);
}
.page-contact .band-media img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 问题分流表 ---------- */
.page-contact .route-table{
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  color: var(--paper-100);
}
.page-contact .route-table th{
  padding: 0 16px 14px 0;
  text-align: left;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate-400);
}
.page-contact .route-table td{
  padding: 18px 16px 18px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.72;
}
.page-contact .route-table td:first-child{ font-weight: 600; }
.page-contact .route-table tbody tr{ transition: background var(--dur) var(--ease); }
.page-contact .route-table tbody tr:hover{ background: rgba(37,217,210,.07); }
.page-contact .route-table a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37,217,210,.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .route-table a:hover{
  color: var(--paper-100);
  border-color: var(--paper-100);
}
.page-contact .route-tag{
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  white-space: nowrap;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  color: var(--slate-400);
}
.page-contact .route-tag--orange{
  border-color: rgba(255,107,44,.55);
  color: var(--orange);
  background: rgba(255,107,44,.1);
}
.page-contact .route-tag--cyan{
  border-color: rgba(37,217,210,.55);
  color: var(--cyan);
  background: rgba(37,217,210,.1);
}

/* ---------- 服务时段 ---------- */
.page-contact .hours-section{
  background: linear-gradient(180deg, rgba(17,50,80,.22), rgba(5,13,26,0) 70%);
}
.page-contact .hours-grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 32px;
}
.page-contact .big-hours{
  margin: 24px 0 6px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(30px, 6.6vw, 48px);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--paper-100);
}
.page-contact .hours-meta{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

/* ---------- 折叠问答 ---------- */
.page-contact .faq-list{ display: grid; }
.page-contact .faq-item{
  border-top: 1px solid var(--line);
}
.page-contact .faq-item:last-child{ border-bottom: 1px solid var(--line); }
.page-contact .faq-item summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-100);
  cursor: pointer;
  list-style: none;
}
.page-contact .faq-item summary::-webkit-details-marker{ display: none; }
.page-contact .faq-item summary::after{
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
  transition: transform var(--dur) var(--ease);
}
.page-contact .faq-item[open] summary::after{
  content: "−";
  transform: rotate(180deg);
}
.page-contact .faq-item p{
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 合作与培训 ---------- */
.page-contact .partner-grid{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 16px;
}
.page-contact .partner-card{
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  background: var(--pc-card-soft);
}
.page-contact .partner-card--accent{
  border-color: rgba(255,107,44,.42);
  background: linear-gradient(150deg, rgba(255,107,44,.12), rgba(10,26,47,.7) 72%);
}
.page-contact .partner-card .mono{
  margin: 0;
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--slate-400);
}
.page-contact .partner-card h3{
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper-100);
}
.page-contact .partner-card ul{
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-soft);
}
.page-contact .partner-card li{
  position: relative;
  padding-left: 18px;
}
.page-contact .partner-card li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}
.page-contact .partner-card--accent li::before{ background: var(--orange); }

/* ---------- 订阅提醒 ---------- */
.page-contact .updates-panel{
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 28px;
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-block);
  background:
    linear-gradient(118deg, rgba(255,107,44,.11), rgba(5,13,26,0) 48%),
    linear-gradient(300deg, rgba(37,217,210,.13), rgba(5,13,26,0) 54%),
    var(--pc-card);
}
.page-contact .updates-panel .sec-lede{ margin-bottom: 22px; }
.page-contact .updates-ways{
  display: grid;
  gap: 12px;
}
.page-contact .way{
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  background: rgba(5,13,26,.5);
}
.page-contact .way .mono{
  margin: 0;
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--cyan);
}
.page-contact .way h3{
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper-100);
}
.page-contact .way p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-soft);
}
.page-contact .updates-hint{
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px){
  .page-contact .channels{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .page-contact .partner-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .page-contact .updates-panel{ padding: 32px 28px; }
  .page-contact .coord-figure img{ height: 200px; }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px){
  .page-contact .section{ padding-block: 72px; }
  .page-contact .contact-hero{ padding-block: 32px 80px; }

  .page-contact .hero-grid{
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .sec-head--split{
    display: grid;
    grid-template-columns: minmax(0,1fr) minmax(0,1fr);
    gap: 0 48px;
    align-items: end;
    max-width: none;
  }
  .page-contact .sec-head--split .sec-title{ margin-bottom: 0; }

  .page-contact .hours-grid{
    grid-template-columns: 5fr 7fr;
    gap: 64px;
    align-items: start;
  }

  .page-contact .partner-grid{ grid-template-columns: repeat(3, minmax(0,1fr)); }

  .page-contact .updates-panel{
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
    padding: 40px;
    gap: 40px;
  }
  .page-contact .updates-panel .sec-lede{ margin-bottom: 24px; }
}

@media (min-width: 1040px){
  .page-contact .channels{ grid-template-columns: repeat(3, minmax(0,1fr)); }
  .page-contact .channel-card--wide{ grid-column: span 2; }
}

/* ---------- 窄屏：分流表转为卡片 ---------- */
@media (max-width: 719px){
  .page-contact .route-table,
  .page-contact .route-table tbody,
  .page-contact .route-table tr,
  .page-contact .route-table td{
    display: block;
    width: 100%;
  }
  .page-contact .route-table thead{ display: none; }
  .page-contact .route-table tr{
    margin-bottom: 12px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-soft);
    background: var(--pc-card);
  }
  .page-contact .route-table tr:hover{ background: var(--pc-card); }
  .page-contact .route-table td{
    padding: 5px 0;
    border-bottom: 0;
    font-size: 14px;
  }
  .page-contact .route-table td::before{
    content: attr(data-label);
    display: block;
    margin-bottom: 3px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--slate-400);
  }
  .page-contact .route-table td:first-child{
    font-size: 15px;
    margin-bottom: 6px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  .page-contact .channel-card,
  .page-contact .copy-btn,
  .page-contact .faq-item summary::after{
    transition: none;
  }
  .page-contact .channel-card:hover{ transform: none; }
}
<<<END>>>