.page-contact {
  --pc-gap: clamp(24px, 3.5vw, 44px);
  --pc-surface: rgba(255, 255, 255, 0.035);
  --pc-surface-strong: rgba(14, 59, 59, 0.55);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(28px, 4vw, 48px);
  padding-bottom: clamp(18px, 3vw, 34px);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
}

.page-contact .breadcrumb-list li {
  display: inline-flex;
  align-items: center;
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  color: var(--grey);
  margin: 0 9px;
}

.page-contact .breadcrumb-link {
  color: var(--cyan);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .breadcrumb-link:hover {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .breadcrumb-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-contact .breadcrumb-current {
  color: var(--grey);
}

.page-contact .contact-hero__inner {
  max-width: 940px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--white);
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  text-wrap: balance;
}

.page-contact .contact-hero .section-lede {
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--mist);
  max-width: 68ch;
  margin: 0 0 clamp(24px, 3vw, 34px);
}

.page-contact .tag-row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-contact .tag-row::-webkit-scrollbar {
  display: none;
}

.page-contact .tag-row .tag {
  white-space: nowrap;
  flex: 0 0 auto;
}

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

/* ---------- 服务台双栏 ---------- */

.page-contact .contact-desk {
  padding-block: clamp(34px, 5vw, 64px);
}

.page-contact .contact-desk__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

/* ---------- 左侧联系信息卡 ---------- */

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--r-xl);
  padding: clamp(24px, 3vw, 34px);
  background:
    linear-gradient(165deg, rgba(36, 30, 78, 0.78) 0%, rgba(11, 27, 43, 0.94) 72%);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0, 229, 255, 0.16) 1px, transparent 1px);
  background-size: 15px 15px;
  opacity: 0.45;
  pointer-events: none;
}

.page-contact .contact-card > * {
  position: relative;
  z-index: 1;
}

.page-contact .contact-card__eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-contact .contact-card__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.3;
  color: var(--white);
  margin: 0 0 16px;
}

.page-contact .contact-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
}

.page-contact .contact-line {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--hair-soft);
}

.page-contact .contact-line:first-child {
  padding-top: 4px;
}

.page-contact .contact-line:last-child {
  border-bottom: 0;
  padding-bottom: 12px;
}

.page-contact .contact-line__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-contact .contact-line__value {
  font-size: clamp(15.5px, 2vw, 17.5px);
  line-height: 1.55;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .contact-line__value.mono {
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-contact .contact-card__note {
  font-size: 14px;
  line-height: 1.78;
  color: var(--grey);
  margin: 0 0 22px;
}

.page-contact .contact-card .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 右侧内容 ---------- */

.page-contact .contact-main {
  display: grid;
  gap: clamp(32px, 4vw, 56px);
  min-width: 0;
}

.page-contact .channel-block {
  min-width: 0;
}

.page-contact .channel-block__eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 12px;
}

.page-contact .channel-block__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.26;
  color: var(--white);
  margin: 0 0 14px;
}

.page-contact .channel-block__lede {
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 64ch;
  margin: 0 0 clamp(22px, 3vw, 30px);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .channel-card {
  border: 1px solid var(--hair-soft);
  border-radius: var(--r-lg);
  background: var(--pc-surface);
  padding: 22px;
  transition:
    transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  border-color: var(--hair);
  background: var(--pc-surface-strong);
}

.page-contact .channel-card .card-title {
  font-size: 17.5px;
  line-height: 1.4;
  color: var(--white);
  margin: 0 0 10px;
}

.page-contact .channel-card .card-text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--grey);
  margin: 0;
}

/* ---------- 故障上报 ---------- */

.page-contact .channel-block--incident {
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: var(--r-xl);
  padding: clamp(24px, 3.2vw, 40px);
  background: linear-gradient(150deg, rgba(74, 30, 43, 0.68) 0%, rgba(11, 27, 43, 0.9) 78%);
}

.page-contact .channel-block--incident .channel-block__eyebrow {
  color: #ffb199;
}

.page-contact .incident-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-contact .incident-copy {
  min-width: 0;
}

.page-contact .incident-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .incident-list li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .incident-list .status-dot {
  margin-top: 9px;
  flex: 0 0 auto;
}

.page-contact .incident-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey);
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid rgba(255, 107, 53, 0.5);
}

.page-contact .incident-media {
  min-width: 0;
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
}

.page-contact .media-caption {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--grey);
}

/* ---------- 合作流程 ---------- */

.page-contact .contact-process {
  border-radius: var(--r-xl);
  padding-block: clamp(44px, 6vw, 84px);
}

.page-contact .contact-process .section-title {
  max-width: 22ch;
}

.page-contact .contact-process .section-lede {
  max-width: 60ch;
  color: var(--mist);
}

.page-contact .process-list {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .process-item {
  min-width: 0;
}

.page-contact .process-list details {
  border: 1px solid var(--hair-soft);
  border-radius: var(--r-lg);
  background: rgba(11, 27, 43, 0.44);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .process-list details[open] {
  border-color: var(--hair);
  background: rgba(11, 27, 43, 0.68);
}

.page-contact .process-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  border-radius: var(--r-lg);
}

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

.page-contact .process-summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .process-num {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .process-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.35;
  color: var(--white);
}

.page-contact .process-tag {
  font-size: 11.5px;
  letter-spacing: 0.07em;
  color: var(--grey);
  white-space: nowrap;
}

.page-contact .process-body {
  padding: 16px 20px 20px;
  border-top: 1px dashed var(--hair-soft);
}

.page-contact .process-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 72ch;
}

/* ---------- 服务区域与备案 ---------- */

.page-contact .contact-reach {
  padding-block: clamp(52px, 6.5vw, 96px);
}

.page-contact .reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-contact .reach-copy {
  min-width: 0;
}

.page-contact .reach-copy .section-title {
  max-width: 18ch;
  margin-bottom: 16px;
}

.page-contact .reach-copy .section-lede {
  color: var(--mist);
  max-width: 58ch;
  margin: 0;
}

.page-contact .reach-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 22px;
}

.page-contact .reach-stat {
  border: 1px solid var(--hair-soft);
  border-radius: var(--r-md);
  background: var(--pc-surface);
  padding: 15px 13px;
}

.page-contact .reach-stat dt {
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--grey);
  margin: 0 0 8px;
}

.page-contact .reach-stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.8vw, 26px);
  letter-spacing: 0.02em;
  color: var(--cyan);
  line-height: 1.2;
}

.page-contact .reach-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin: 0 0 16px;
  padding: 13px 18px;
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  background: rgba(0, 229, 255, 0.06);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-contact .reach-legal__value {
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-contact .reach-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey);
  margin: 0;
  max-width: 56ch;
}

.page-contact .reach-media {
  min-width: 0;
}

/* ---------- 延伸阅读 ---------- */

.page-contact .contact-more {
  padding-block: clamp(40px, 5vw, 76px) clamp(56px, 7vw, 104px);
}

.page-contact .contact-more .section-title {
  max-width: 24ch;
}

.page-contact .more-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-contact .more-card {
  display: block;
  text-decoration: none;
  border: 1px solid var(--hair-soft);
  border-radius: var(--r-lg);
  background: var(--pc-surface);
  padding: 22px;
  transition:
    transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-contact .more-card:hover {
  transform: translateY(-3px);
  border-color: var(--hair);
  background: var(--pc-surface-strong);
}

.page-contact .more-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .more-card .card-title {
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
  margin: 0 0 9px;
}

.page-contact .more-card .card-text {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--grey);
  margin: 0;
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-contact .more-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .incident-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 36px;
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-desk__grid {
    grid-template-columns: minmax(290px, 360px) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 64px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: 108px;
  }
}

@media (max-width: 559px) {
  .page-contact .process-summary {
    grid-template-columns: auto minmax(0, 1fr);
    row-gap: 4px;
    padding: 16px 16px;
  }

  .page-contact .process-num {
    grid-row: span 2;
  }

  .page-contact .process-tag {
    grid-column: 2;
  }

  .page-contact .process-body {
    padding: 14px 16px 18px;
  }

  .page-contact .reach-stats {
    gap: 9px;
  }

  .page-contact .reach-stat {
    padding: 13px 10px;
  }

  .page-contact .reach-stat dt {
    font-size: 10px;
    letter-spacing: 0.06em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .more-card,
  .page-contact .process-list details {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .more-card:hover {
    transform: none;
  }
}