.page-contact {
  --contact-edge: rgba(247, 251, 255, .16);
  --contact-edge-strong: rgba(247, 251, 255, .3);
  --contact-card-bg: #0A2434;
  background:
    radial-gradient(130% 65% at 90% -12%, rgba(27, 108, 168, .55), transparent 62%),
    radial-gradient(90% 55% at 4% 105%, rgba(7, 26, 38, .85), transparent 60%),
    var(--lake);
  color: var(--snow);
}

.page-contact .breadcrumb {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 12px;
}

.page-contact .contact-hero__frame {
  position: relative;
  display: grid;
  gap: 26px;
  padding: 30px 22px 34px;
  background: linear-gradient(152deg, rgba(7, 26, 38, .92), rgba(11, 60, 93, .3));
  border: 1px solid var(--contact-edge);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-contact .contact-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 78px;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--lime));
}

.page-contact h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -.025em;
  font-weight: 800;
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 251, 255, .82);
}

.page-contact .contact-hero__stamp {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 16px;
  border-left: 3px solid var(--lime);
  font-family: var(--font-mono);
}

.page-contact .contact-hero__stamp-num {
  font-size: 40px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--lime);
}

.page-contact .contact-hero__stamp-label {
  font-size: 12px;
  letter-spacing: .2em;
  color: rgba(247, 251, 255, .62);
}

/* ---------- 渠道 + 问题类型 ---------- */
.page-contact .contact-main__grid {
  display: grid;
  gap: 20px;
}

.page-contact .contact-main__grid > * {
  min-width: 0;
}

.page-contact .contact-card {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-edge);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--lime));
}

.page-contact .contact-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .contact-card__head h2 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -.01em;
}

.page-contact .contact-card__dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(183, 243, 74, .16);
  animation: contact-pulse 2.6s ease-in-out infinite;
}

@keyframes contact-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.page-contact .contact-card__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 251, 255, .66);
}

.page-contact .channel-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--contact-edge);
  border-top: 1px solid var(--contact-edge);
  border-bottom: 1px solid var(--contact-edge);
}

.page-contact .channel-item {
  display: grid;
  gap: 6px;
  padding: 16px 4px;
  background: var(--contact-card-bg);
}

.page-contact .channel-item__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-contact .channel-item__val {
  font-size: 17px;
  line-height: 1.6;
  color: var(--snow);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__media {
  margin: 22px 0 0;
}

.page-contact .contact-aside {
  padding: 24px 20px 22px;
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-contact .contact-aside__title {
  margin: 0;
  font-size: 21px;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .topic-cloud {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-contact .topic-chip {
  padding: 8px 13px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid rgba(7, 26, 38, .14);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.page-contact .contact-aside__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(7, 26, 38, .74);
}

.page-contact .contact-aside__foot a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 服务时间 ---------- */
.page-contact .hours-panel {
  margin-top: 22px;
  padding: 26px 20px 28px;
  background: rgba(7, 26, 38, .58);
  border: 1px solid var(--contact-edge);
  border-top: 3px solid var(--blue);
}

.page-contact .hours-bar {
  position: relative;
  height: 10px;
  background: rgba(247, 251, 255, .1);
  overflow: hidden;
}

.page-contact .hours-bar__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, var(--orange), var(--lime));
}

.page-contact .hours-ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(247, 251, 255, .5);
}

.page-contact .hours-copy {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .hours-copy p {
  margin: 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 251, 255, .8);
}

.page-contact .hours-copy strong {
  color: var(--lime);
  font-weight: 700;
}

/* ---------- 常见咨询 ---------- */
.page-contact .topic-details {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .topic-detail {
  background: rgba(7, 26, 38, .6);
  border: 1px solid var(--contact-edge);
  border-left: 3px solid var(--blue);
}

.page-contact .topic-detail[open] {
  border-left-color: var(--orange);
  background: rgba(7, 26, 38, .8);
}

.page-contact .topic-detail summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 17px 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--snow);
  cursor: pointer;
  list-style: none;
}

.page-contact .topic-detail summary::-webkit-details-marker {
  display: none;
}

.page-contact .topic-detail summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: -4px;
  border-right: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(45deg);
  transition: transform .18s ease;
}

.page-contact .topic-detail[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.page-contact .topic-detail summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-contact .topic-detail p {
  margin: 0;
  padding: 0 18px 20px;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(247, 251, 255, .78);
}

.page-contact .topic-detail p a {
  color: var(--lime);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 处理流程 ---------- */
.page-contact .flow-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .flow-step {
  position: relative;
  padding: 22px 18px 24px;
  background: rgba(7, 26, 38, .55);
  border: 1px solid var(--contact-edge);
  border-top: 3px solid var(--orange);
}

.page-contact .flow-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-contact .flow-step h3 {
  margin: 12px 0 0;
  font-size: 17px;
  letter-spacing: -.01em;
}

.page-contact .flow-step p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 251, 255, .72);
}

/* ---------- 服务范围 ---------- */
.page-contact .contact-region__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-region__grid > * {
  min-width: 0;
}

.page-contact .contact-region__text h2 {
  margin: 12px 0 0;
}

.page-contact .contact-region__text p {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 251, 255, .8);
}

.page-contact .contact-region__text a {
  color: var(--lime);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-region__icp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(247, 251, 255, .52) !important;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .channel-item {
    grid-template-columns: 82px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .hours-panel {
    padding: 30px 28px 32px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__frame {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 44px;
    padding: 44px 40px 48px;
  }

  .page-contact .contact-main__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 26px;
    align-items: start;
  }

  .page-contact .flow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-region__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1080px) {
  .page-contact .flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-card,
  .page-contact .contact-aside {
    padding: 28px 28px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card__dot {
    animation: none;
  }

  .page-contact .topic-detail summary::after {
    transition: none;
  }
}