.page-contact {
  --pc-tilt: -2.2deg;
  --pc-card-radius: 18px;
  --pc-gap: clamp(20px, 3vw, 40px);
}

/* 面包屑 */
.page-contact .crumbs-wrap {
  padding-top: clamp(20px, 3vw, 34px);
}
.page-contact .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--text-mute);
}
.page-contact .crumbs a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-contact .crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-strong);
}
.page-contact .crumb-sep { color: var(--text-mute); }

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  padding-top: clamp(24px, 4vw, 52px);
}
.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: start;
}
.page-contact .contact-h1 {
  font-size: clamp(40px, 11vw, 76px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 12px 0 20px;
  background: linear-gradient(100deg, var(--glass) 22%, var(--cyan) 62%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-contact .contact-lede {
  max-width: 46ch;
}
.page-contact .contact-quickline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.page-contact .quick-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-bg);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.page-contact .quick-pill:hover {
  border-color: var(--line-strong);
  background: rgba(0, 229, 255, .08);
  transform: translateY(-2px);
}
.page-contact .quick-key {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-contact .quick-val {
  font-size: 14px;
  word-break: break-all;
}
.page-contact .contact-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-mute);
  max-width: 54ch;
  border-left: 2px solid var(--gold);
  padding-left: 14px;
}

.page-contact .contact-hero-media {
  margin: 0;
  position: relative;
  border-radius: var(--pc-card-radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-soft);
}
.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.12) contrast(1.05);
}
.page-contact .contact-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(0, 229, 255, .16), transparent 48%, rgba(168, 85, 247, .18));
  pointer-events: none;
}
.page-contact .contact-hero-media .media-cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 2;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

/* ============ 分段标题补充 ============ */
.page-contact .section-sub {
  max-width: 62ch;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
}

/* ============ 联系渠道 ============ */
.page-contact .channel-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(24px, 4vw, 44px);
}
.page-contact .channel-card {
  position: relative;
  padding: 26px 24px 24px;
  border-radius: var(--pc-card-radius);
  background: var(--graphite);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--purple));
}
.page-contact .channel-card--primary {
  background: linear-gradient(155deg, rgba(0, 229, 255, .13), rgba(7, 10, 15, .4) 62%), var(--graphite);
  border-color: rgba(0, 229, 255, .34);
}
.page-contact .channel-card--wide::before {
  background: linear-gradient(180deg, var(--gold), var(--purple));
}
.page-contact .channel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.page-contact .channel-idx {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--text-mute);
}
.page-contact .channel-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: .06em;
  margin: 0 0 8px;
}
.page-contact .channel-value {
  font-size: clamp(17px, 4.4vw, 26px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--cyan);
  margin: 0 0 14px;
  word-break: break-all;
}
.page-contact .channel-card--wide .channel-value--sm {
  color: var(--gold);
  font-family: var(--font-cn);
  font-size: clamp(16px, 3.6vw, 21px);
  letter-spacing: .01em;
}
.page-contact .channel-desc {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
  max-width: 60ch;
}
.page-contact .channel-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============ 咨询前准备 ============ */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: start;
}
.page-contact .prep-text .muted {
  font-size: 15px;
  line-height: 1.78;
  max-width: 60ch;
}
.page-contact .prep-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .prep-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 18px 18px 18px 16px;
  border-radius: 14px;
  background: var(--graphite-2);
  border: 1px solid var(--line-soft);
  transition: border-color .2s ease, transform .2s ease;
}
.page-contact .prep-item:hover {
  border-color: var(--line-strong);
  transform: translateX(3px);
}
.page-contact .prep-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: .08em;
}
.page-contact .prep-title {
  margin: 4px 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.page-contact .prep-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-contact .prep-tip {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-mute);
}
.page-contact .prep-tip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-strong);
}
.page-contact .prep-tip a:hover { color: var(--gold); }
.page-contact .prep-media {
  margin: 0;
  border-radius: var(--pc-card-radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-soft);
}
.page-contact .prep-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .prep-media .media-cap {
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-mute);
  border-top: 1px solid var(--line-soft);
}

/* ============ 响应时间 ============ */
.page-contact .timing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 36px);
}
.page-contact .timing-card {
  padding: 24px 22px;
  border-radius: var(--pc-card-radius);
  border: 1px solid var(--line-soft);
}
.page-contact .timing-card.solid {
  background: var(--graphite);
  border-color: rgba(255, 138, 0, .34);
}
.page-contact .timing-card.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
}
.page-contact .timing-card .stat-value {
  display: block;
  font-size: clamp(26px, 7vw, 40px);
  letter-spacing: -.01em;
  color: var(--cyan);
  line-height: 1.1;
}
.page-contact .timing-card.solid .stat-value { color: var(--gold); }
.page-contact .timing-card .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--text-mute);
}
.page-contact .timing-desc {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .scope-band {
  margin-top: 22px;
  padding: 26px 24px;
  border-radius: var(--pc-card-radius);
  background: linear-gradient(120deg, rgba(168, 85, 247, .14), rgba(7, 10, 15, .2) 55%), var(--ink-soft);
  border: 1px solid rgba(168, 85, 247, .26);
}
.page-contact .scope-title {
  margin: 0 0 16px;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--text);
}
.page-contact .scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-contact .scope-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, .6);
}
.page-contact .scope-note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-mute);
}
.page-contact .scope-note a {
  color: var(--purple);
  text-decoration: none;
  border-bottom: 1px dashed rgba(168, 85, 247, .5);
}
.page-contact .scope-note a:hover { color: var(--cyan); }

/* ============ 问题类型分流 ============ */
.page-contact .type-tabs { margin-top: clamp(22px, 3vw, 36px); }
.page-contact .type-tabs .tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
.page-contact .type-tabs .tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.page-contact .type-tabs .tab:hover {
  color: var(--text);
  border-color: var(--line-strong);
}
.page-contact .type-tabs .tab[aria-selected="true"] {
  color: var(--ink);
  background: linear-gradient(120deg, var(--cyan), #6ad9ff);
  border-color: transparent;
  font-weight: 600;
}
.page-contact .type-tabs .tab-idx {
  font-size: 11px;
  letter-spacing: .12em;
  opacity: .8;
}
.page-contact .type-tabs .panel {
  margin-top: 18px;
  padding: 24px 22px;
  border-radius: var(--pc-card-radius);
  background: var(--graphite);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
}
.page-contact .panel-title {
  margin: 0 0 12px;
  font-size: 17px;
  color: var(--text);
  letter-spacing: .02em;
}
.page-contact .type-tabs .panel p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 72ch;
}
.page-contact .type-tabs .panel-link {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-mute);
}
.page-contact .type-tabs .panel-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-strong);
}
.page-contact .type-tabs .panel-link a:hover { color: var(--gold); }

/* ============ 合作与反馈 ============ */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: start;
}
.page-contact .partner-text .muted {
  font-size: 15px;
  line-height: 1.78;
  max-width: 62ch;
}
.page-contact .partner-cols {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}
.page-contact .partner-col {
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--line-soft);
  background: rgba(232, 246, 255, .03);
}
.page-contact .partner-col-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 15.5px;
  color: var(--text);
}
.page-contact .partner-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}
.page-contact .partner-list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-contact .partner-cta {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .partner-aside {
  padding: 24px 22px;
  border-radius: var(--pc-card-radius);
  border: 1px solid var(--line-strong);
}
.page-contact .aside-label {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--cyan);
}
.page-contact .aside-stats {
  margin: 0;
  display: grid;
  gap: 12px;
}
.page-contact .aside-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .aside-row dt {
  font-size: 14px;
  color: var(--text-dim);
}
.page-contact .aside-row dd {
  margin: 0;
  font-size: 17px;
  color: var(--glass);
  letter-spacing: .01em;
}
.page-contact .aside-note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ============ 收尾 ============ */
.page-contact .contact-closing {
  padding-bottom: clamp(60px, 8vw, 96px);
}
.page-contact .closing-inner {
  border-top: 1px solid var(--line-soft);
  padding-top: 24px;
}
.page-contact .closing-line {
  margin: 12px 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 70ch;
}
.page-contact .closing-icp {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--text-mute);
}

/* ============ 返回顶部 ============ */
.page-contact .to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(7, 10, 15, .82);
  backdrop-filter: blur(8px);
  color: var(--cyan);
  font-family: var(--font-cn);
  font-size: 13px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
}
.page-contact .to-top[data-visible] {
  opacity: 1;
  pointer-events: auto;
}
.page-contact .to-top:hover { transform: translateY(-3px); }

/* ============ 复制按钮状态 ============ */
.page-contact .copy-btn[data-copied] {
  border-color: var(--green) !important;
  color: var(--green) !important;
}

/* ============ 平板 ============ */
@media (min-width: 720px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
  }
  .page-contact .contact-lede { font-size: 17px; }
  .page-contact .channel-stack {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .channel-card--wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 10px 24px;
    align-items: center;
  }
  .page-contact .channel-card--wide .channel-head {
    grid-column: 1 / -1;
    margin-bottom: 4px;
  }
  .page-contact .channel-card--wide .channel-name { margin-bottom: 4px; }
  .page-contact .channel-card--wide .channel-value { margin-bottom: 0; }
  .page-contact .channel-card--wide .channel-desc { margin-bottom: 0; }
  .page-contact .timing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .prep-grid {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }
  .page-contact .prep-media {
    margin-top: 26px;
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
  .page-contact .partner-grid {
    grid-template-columns: 1.4fr .6fr;
  }
  .page-contact .partner-cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============ 桌面 ============ */
@media (min-width: 1080px) {
  .page-contact .contact-h1 {
    font-size: clamp(62px, 6.6vw, 96px);
  }
  .page-contact .channel-stack {
    grid-template-columns: repeat(4, 1fr);
    align-items: stretch;
  }
  .page-contact .channel-card--primary {
    grid-column: span 2;
  }
  .page-contact .channel-card--wide {
    grid-column: span 2;
  }
  .page-contact .channel-card--wide .channel-value--sm {
    font-size: 20px;
  }
  .page-contact .scope-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 28px;
  }
  .page-contact .partner-grid {
    grid-template-columns: 1.55fr .45fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .quick-pill,
  .page-contact .prep-item,
  .page-contact .to-top {
    transition: none;
  }
  .page-contact .quick-pill:hover,
  .page-contact .prep-item:hover,
  .page-contact .to-top:hover {
    transform: none;
  }
}