.page-contact {
  --ch-radius: 22px;
  --ch-radius-sm: 14px;
  --ch-card-shadow: 0 1px 2px rgba(14, 27, 51, .04);
  --ch-card-shadow-hover: 0 12px 28px rgba(14, 27, 51, .08);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-grey);
}
.page-contact .crumbs a {
  color: var(--star-cyan);
  text-decoration: none;
}
.page-contact .crumbs a:hover {
  text-decoration: underline;
}
.page-contact .crumbs__sep {
  opacity: .5;
}

/* ---------- 首屏 ---------- */
.page-contact .ch-hero {
  padding-top: 28px;
}
.page-contact .ch-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.page-contact .ch-hero__lead .idx {
  color: var(--text-grey);
  display: block;
  margin-bottom: 14px;
}
.page-contact .ch-hero__lead h1 {
  margin: 0 0 20px;
}
.page-contact .ch-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-contact .ch-hero__media {
  margin: 0;
  border-radius: var(--ch-radius);
  overflow: hidden;
  border: 1px solid var(--stroke);
}
.page-contact .ch-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

/* ---------- 章节标题 ---------- */
.page-contact .ch-sechead {
  margin-bottom: 36px;
}
.page-contact .ch-sechead .idx {
  display: block;
  color: var(--text-grey);
  margin-bottom: 10px;
}
.page-contact .ch-sechead h2 {
  margin: 0;
  max-width: 20ch;
}

/* ---------- 渠道布局 ---------- */
.page-contact .ch-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-contact .ch-rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  position: relative;
}
.page-contact .ch-rail li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-contact .ch-rail .dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--stroke);
  box-shadow: 0 0 0 1px var(--stroke);
  flex: none;
}
.page-contact .ch-rail .dot--gold {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 75, .22);
}
.page-contact .ch-rail a {
  color: var(--deep-space);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color .24s var(--ease), color .24s var(--ease);
}
.page-contact .ch-rail a:hover,
.page-contact .ch-rail a:focus-visible {
  color: var(--star-cyan);
  border-bottom-color: var(--star-cyan);
}

.page-contact .ch-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-contact .ch-card {
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
}
.page-contact .ch-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--ch-card-shadow-hover);
  border-color: var(--star-cyan);
}
.page-contact .ch-card h3 {
  margin: 0;
}
.page-contact .ch-card p {
  margin: 0;
}
.page-contact .ch-card__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-contact .ch-card__head .idx--gold {
  color: var(--gold);
}
.page-contact .ch-card__path {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px dashed var(--stroke);
  font-size: 14px;
  color: var(--text-grey);
}
.page-contact .ch-card__path .idx {
  color: var(--gold);
}
.page-contact .ch-card__strong {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  word-break: break-all;
  color: var(--deep-space);
}
.page-contact .ch-card--primary {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px rgba(201, 162, 75, .28);
}

/* ---------- 在线工单 ---------- */
.page-contact .ch-ticket__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-contact .ch-ticket__body .idx {
  display: block;
  color: var(--text-grey);
  margin-bottom: 12px;
}
.page-contact .ch-ticket__body h2 {
  margin: 0 0 18px;
}
.page-contact .ch-ticket__body > p {
  margin: 0 0 18px;
}
.page-contact .ch-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-contact .ch-steps li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--moon-white);
  border: 1px solid var(--stroke);
  border-radius: var(--ch-radius-sm);
}
.page-contact .ch-steps__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
  padding-top: 4px;
}
.page-contact .ch-steps p {
  margin: 0;
}
.page-contact .ch-steps .h-sub {
  margin-bottom: 4px;
}
.page-contact .ch-note {
  font-size: 14px;
  color: var(--text-grey);
  border-left: 2px solid var(--halo-purple);
  padding-left: 14px;
  margin: 0;
}
.page-contact .ch-ticket__media {
  margin: 0;
  border-radius: var(--ch-radius);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: var(--moon-white);
}
.page-contact .ch-ticket__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}
.page-contact .ch-ticket__media .media__cap {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-grey);
}

/* ---------- 邮箱与电话 ---------- */
.page-contact .ch-direct__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-contact .ch-direct__item {
  padding: 28px 24px;
  border-radius: var(--ch-radius);
  border: 1px solid var(--stroke);
  background: var(--moon-white);
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}
.page-contact .ch-direct__item:hover {
  transform: translateY(-4px);
  border-color: var(--star-cyan);
}
.page-contact .ch-direct__item .idx {
  display: block;
  color: var(--text-grey);
  margin-bottom: 12px;
}
.page-contact .ch-direct__val {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 19px;
  letter-spacing: .01em;
  line-height: 1.4;
  color: var(--deep-space);
  word-break: break-all;
}
.page-contact .ch-direct__item--dark {
  background: var(--midnight);
  border-color: var(--midnight);
}
.page-contact .ch-direct__item--dark .idx--gold {
  color: var(--gold);
}
.page-contact .ch-direct__item--dark .ch-direct__val {
  color: var(--moon-white);
}
.page-contact .ch-direct__item--dark .muted {
  color: #A8B3CC;
}
.page-contact .ch-note--wide {
  margin-top: 28px;
}

/* ---------- 站内检索 ---------- */
.page-contact .ch-search__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-contact .ch-search__intro .idx {
  display: block;
  color: var(--text-grey);
  margin-bottom: 12px;
}
.page-contact .ch-search__intro h2 {
  margin: 0 0 18px;
}
.page-contact .ch-search__intro p {
  margin: 0 0 16px;
}
.page-contact .ch-search__panel {
  background: var(--moon-white);
  border: 1px solid var(--stroke);
  border-radius: var(--ch-radius);
  padding: 26px 24px;
}
.page-contact .ch-search__panel .idx {
  display: block;
  color: var(--text-grey);
  margin-bottom: 18px;
}
.page-contact .ch-search__cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-contact .ch-search__cats li {
  padding-left: 16px;
  border-left: 2px solid var(--moon-grey);
}
.page-contact .ch-search__cats p {
  margin: 0;
}
.page-contact .ch-search__cats .h-sub {
  margin-bottom: 4px;
  color: var(--deep-space);
}
.page-contact .ch-search__tip {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--stroke);
  font-size: 14px;
  color: var(--text-grey);
}

/* ---------- 提交前清单 ---------- */
.page-contact .ch-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
  display: grid;
  gap: 14px;
}
.page-contact .ch-checklist li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px 22px;
  background: var(--moon-grey);
  border-radius: var(--ch-radius-sm);
  border-left: 3px solid var(--stroke);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}
.page-contact .ch-checklist li:hover {
  border-left-color: var(--gold);
}
.page-contact .ch-checklist__num {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--deep-space);
  line-height: 1.4;
}
.page-contact .ch-checklist p {
  margin: 0;
}
.page-contact .ch-checklist .h-sub {
  margin-bottom: 4px;
}
.page-contact .ch-prep__after {
  margin: 28px 0 0;
  font-size: 14px;
  color: var(--text-grey);
  max-width: 62ch;
}

/* ---------- 深色信息带 ---------- */
.page-contact .ch-reg {
  background: var(--midnight);
  color: var(--moon-white);
  margin-top: 40px;
}
.page-contact .ch-reg__head h2 {
  color: var(--moon-white);
  margin: 0 0 16px;
}
.page-contact .ch-reg__head .idx--gold {
  display: block;
  color: var(--gold);
  margin-bottom: 12px;
}
.page-contact .ch-reg__head .lede {
  color: #C3CCE0;
  max-width: 58ch;
  margin: 0 0 32px;
}
.page-contact .ch-reg__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-contact .ch-reg__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(211, 216, 230, .14);
}
.page-contact .ch-reg__row:last-child {
  border-bottom: none;
}
.page-contact .ch-reg__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}
.page-contact .ch-reg__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--moon-white);
  word-break: break-word;
}
.page-contact .ch-reg__tail {
  margin: 32px 0 0;
  font-size: 14px;
  color: #A8B3CC;
}
.page-contact .ch-reg__tail a {
  color: var(--star-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 182, 201, .4);
}
.page-contact .ch-reg__tail a:hover {
  border-bottom-color: var(--star-cyan);
}

/* ---------- 折叠按钮暗色适配 ---------- */
.page-contact .ch-reg .acc__btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  background: transparent;
  border: none;
  border-top: 1px solid rgba(211, 216, 230, .2);
  color: var(--moon-white);
  text-align: left;
  cursor: pointer;
  font: inherit;
}
.page-contact .ch-reg .acc__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}
.page-contact .ch-reg .acc__title {
  font-size: 16px;
  font-weight: 500;
  flex: 1;
}
.page-contact .ch-reg .acc__mark {
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform .24s var(--ease);
}
.page-contact .ch-reg [data-expand].is-open .acc__mark,
.page-contact .ch-reg .acc__btn[aria-expanded="true"] .acc__mark {
  transform: rotate(-135deg);
}
.page-contact .ch-reg .acc__panel {
  padding-bottom: 8px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-contact .ch-hero__grid {
    gap: 26px;
  }
  .page-contact .ch-cards,
  .page-contact .ch-direct__grid {
    gap: 16px;
  }
  .page-contact .ch-checklist li {
    grid-template-columns: 40px 1fr;
    gap: 12px;
    padding: 16px 16px;
  }
  .page-contact .ch-steps li {
    grid-template-columns: 34px 1fr;
    gap: 10px;
    padding: 14px 14px;
  }
  .page-contact .ch-rail ol {
    gap: 16px;
  }
  .page-contact .ch-hero__acts .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (min-width: 720px) {
  .page-contact .ch-hero {
    padding-top: 40px;
  }
  .page-contact .ch-direct__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ch-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ch-reg__row {
    grid-template-columns: 180px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-contact .ch-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
  }
  .page-contact .ch-layout {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 44px;
  }
  .page-contact .ch-rail ol {
    flex-direction: column;
    gap: 0;
    padding-left: 4px;
  }
  .page-contact .ch-rail ol::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 16px;
    bottom: 16px;
    width: 1px;
    background: var(--stroke);
  }
  .page-contact .ch-rail li {
    padding: 14px 0 14px 26px;
  }
  .page-contact .ch-rail .dot {
    position: absolute;
    left: 4px;
  }
  .page-contact .ch-rail li {
    position: relative;
  }
  .page-contact .ch-cards {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }
  .page-contact .ch-card--primary {
    grid-column: 1 / -1;
    padding: 36px 40px;
  }
  .page-contact .ch-card--offset {
    margin-top: 34px;
  }
  .page-contact .ch-ticket__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 52px;
    align-items: start;
  }
  .page-contact .ch-search__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }
  .page-contact .ch-search__panel {
    padding: 34px 32px;
  }
  .page-contact .ch-search__cats {
    gap: 20px;
  }
  .page-contact .ch-reg__head h2 {
    max-width: 22ch;
  }
}

@media (min-width: 1180px) {
  .page-contact .ch-hero__grid {
    gap: 72px;
  }
  .page-contact .ch-cards {
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ch-card,
  .page-contact .ch-direct__item,
  .page-contact .ch-rail a {
    transition: none;
  }
  .page-contact .ch-card:hover,
  .page-contact .ch-direct__item:hover {
    transform: none;
  }
}
<<<END>>>