.page-contact {
  --pc-card-shadow: 6px 6px 0 rgba(180, 134, 60, 0.16), 11px 11px 0 rgba(253, 252, 249, 0.92);
  --pc-soft: rgba(245, 241, 232, 0.78);
  display: block;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 22px 20px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}
.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .breadcrumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--copper);
}
.page-contact .breadcrumbs a {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-contact .breadcrumbs a:hover {
  color: var(--copper);
  border-bottom-color: var(--copper-line);
}

/* ---------- 通用排版件 ---------- */
.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--copper);
}

.page-contact .lead {
  margin: 0 0 22px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .chapter {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.page-contact .chapter__num {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--copper);
  letter-spacing: 0.02em;
}
.page-contact .chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--indigo);
}
.page-contact .chapter__note {
  flex: 0 0 100%;
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--rock);
}

.page-contact .media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--copper-line);
}
.page-contact .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .media--blueprint {
  background-color: var(--indigo);
  background-image:
    linear-gradient(rgba(217, 169, 78, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 169, 78, 0.16) 1px, transparent 1px);
  background-size: 34px 34px;
}
.page-contact .media__stamp {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--copper-bright);
  background: rgba(13, 21, 51, 0.9);
  border: 1px solid var(--copper-line);
}
.page-contact .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--rock);
}

/* ---------- 首屏 ---------- */
.pc-hero {
  padding: 26px 0 48px;
}
.pc-hero__grid {
  display: grid;
  gap: 30px;
}
.pc-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 29px;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--indigo);
}
.pc-hero__quick {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  background: var(--copper-line);
  border: 1px solid var(--copper-line);
}
.pc-quick {
  background: var(--paper-white);
  padding: 12px 14px;
}
.pc-quick__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--rock);
}
.pc-quick__v {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--indigo);
}
.pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.pc-hero__figure {
  margin: 0;
}

/* ---------- 联络台 ---------- */
.pc-desk {
  padding: 12px 0 52px;
}
.pc-desk__grid {
  display: grid;
  gap: 30px;
}
.pc-card {
  padding: 22px 20px;
  background: var(--paper-white);
  border: 1px solid var(--line);
  box-shadow: var(--pc-card-shadow);
}
.pc-card__tag {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--copper-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--copper);
}
.pc-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.pc-card__list > li {
  padding: 14px 0;
  border-top: 1px solid var(--copper-line);
}
.pc-card__list > li:first-child {
  padding-top: 0;
  border-top: 0;
}
.pc-card__k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--rock);
}
.pc-card__v {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--indigo);
  word-break: break-word;
}
.pc-card__v--text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}
.pc-card__hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

.pc-routes {
  display: grid;
  gap: 18px;
}
.pc-route {
  padding: 18px 18px 16px;
  background: var(--paper-white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
}
.pc-route__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.pc-route__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}
.pc-route__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--indigo);
}
.pc-route__value {
  margin: 10px 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--ink);
  word-break: break-word;
}
.pc-route__value--text {
  font-family: var(--font-body);
  line-height: 1.75;
}
.pc-route p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 邮件写法 ---------- */
.pc-mail {
  padding: 50px 0;
  background: var(--paper-white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.pc-mail__grid {
  display: grid;
  gap: 28px;
}
.pc-mail__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.pc-mail__list li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-strong);
}
.pc-mail__list li:last-child {
  border-bottom: 0;
}
.pc-mail__no {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}
.pc-mail__list strong {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  color: var(--indigo);
}
.pc-mail__list p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

.pc-mail__sample {
  padding: 20px 18px;
  background: var(--indigo);
  border: 1px solid var(--indigo-deep);
}
.pc-mail__sample-head {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--copper-bright);
}
.pc-mail__pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.95;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--paper-white);
}
.pc-mail__sample-foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--paper-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--pc-soft);
}

/* ---------- 对接流程 ---------- */
.pc-flow {
  padding: 50px 0;
}
.pc-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.pc-step {
  position: relative;
}
.pc-step__details {
  background: var(--paper-white);
  border: 1px solid var(--line);
}
.pc-step__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px;
  cursor: pointer;
  list-style: none;
}
.pc-step__summary::-webkit-details-marker {
  display: none;
}
.pc-step__num {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--indigo);
  color: var(--copper-bright);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.pc-step__head {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.pc-step__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.3;
  color: var(--indigo);
}
.pc-step__meta {
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}
.pc-step__toggle {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--copper);
  transition: transform 240ms var(--ease);
}
.pc-step__details[open] .pc-step__toggle {
  transform: rotate(45deg);
}
.pc-step__details[open] .pc-step__summary {
  border-bottom: 1px dashed var(--line-strong);
}
.pc-step__body {
  padding: 14px 16px 18px 62px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}
.pc-step__body p {
  margin: 0 0 10px;
}
.pc-step__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--copper) !important;
  margin: 0 0 6px !important;
}
.pc-step__body ul {
  margin: 0;
  padding-left: 18px;
}
.pc-step__body li {
  margin-bottom: 4px;
}

/* ---------- 服务时段 ---------- */
.pc-hours {
  padding: 50px 0;
  background: var(--indigo);
  color: var(--paper);
}
.page-contact .pc-hours .chapter {
  border-bottom-color: var(--paper-line);
}
.page-contact .pc-hours .chapter__title {
  color: var(--paper-white);
}
.page-contact .pc-hours .chapter__note {
  color: var(--pc-soft);
}
.pc-hours__grid {
  display: grid;
  gap: 1px;
  margin: 22px 0 22px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}
.pc-hour {
  padding: 18px 16px;
  background: var(--indigo-deep);
}
.pc-hour__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  letter-spacing: 0.02em;
  color: var(--copper-bright);
}
.pc-hour__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--pc-soft);
}
.pc-hours__note {
  margin: 0;
  max-width: 56em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--pc-soft);
}

/* ---------- 区域分工 ---------- */
.pc-regions {
  padding: 50px 0;
}
.pc-regions__grid {
  display: grid;
  gap: 30px;
}
.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.page-contact .tabs__btn {
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--indigo);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}
.page-contact .tabs__btn:hover {
  border-color: var(--copper);
}
.page-contact .tabs__btn[aria-selected="true"] {
  color: var(--copper-bright);
  background: var(--indigo);
  border-color: var(--indigo);
}
.page-contact .tabs__panel {
  padding: 20px 18px;
  background: var(--paper-white);
  border: 1px solid var(--line);
}
.page-contact .tabs__panel + .tabs__panel {
  margin-top: 14px;
}
.page-contact .tabs__panel[hidden],
.page-contact .tabs__panel[aria-hidden="true"] {
  display: none;
}
.pc-panel__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--copper-line);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--indigo);
}
.pc-panel__kv {
  display: grid;
  gap: 4px 16px;
  margin: 0;
}
.pc-panel__kv dt {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--copper);
}
.pc-panel__kv dt:first-of-type {
  margin-top: 0;
}
.pc-panel__kv dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 场景卡片 ---------- */
.pc-scenes {
  padding: 50px 0 64px;
  background: var(--paper-white);
}
.pc-scenes__grid {
  display: grid;
  gap: 16px;
}
.pc-scene {
  position: relative;
  padding: 20px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}
.pc-scene:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}
.pc-scene__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}
.pc-scene__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.35;
  color: var(--indigo);
}
.pc-scene__advice {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}
.pc-scene__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.pc-scene--cta {
  background: var(--indigo);
  border-color: var(--indigo);
}
.pc-scene--cta:hover {
  border-color: var(--copper-bright);
}
.pc-scene--cta .pc-scene__no {
  color: var(--copper-bright);
}
.pc-scene--cta .pc-scene__title {
  color: var(--paper-white);
}
.pc-scene--cta .pc-scene__advice {
  color: var(--pc-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .pc-hero {
    padding: 32px 0 56px;
  }
  .pc-hero__title {
    font-size: 36px;
  }
  .pc-hero__quick {
    grid-template-columns: repeat(3, 1fr);
  }
  .pc-desk {
    padding-bottom: 60px;
  }
  .pc-hours__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pc-mail__sample {
    padding: 24px 22px;
  }
  .pc-scenes__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pc-step__body {
    padding-left: 68px;
  }
}

@media (min-width: 980px) {
  .pc-hero__grid {
    grid-template-columns: 1.08fr 1fr;
    gap: 48px;
    align-items: end;
  }
  .pc-hero__title {
    font-size: 44px;
  }
  .pc-desk__grid {
    grid-template-columns: 5fr 7fr;
    gap: 44px;
    align-items: start;
  }
  .pc-desk__rail {
    position: sticky;
    top: 24px;
  }
  .pc-mail__grid {
    grid-template-columns: 6fr 6fr;
    gap: 40px;
    align-items: start;
  }
  .pc-hours__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .pc-regions__grid {
    grid-template-columns: 8fr 4fr;
    gap: 40px;
    align-items: start;
  }
  .pc-scenes__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .pc-step__body {
    padding-left: 78px;
  }
}

@media (min-width: 1200px) {
  .pc-hero__title {
    font-size: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-scene,
  .page-contact .pc-step__toggle,
  .page-contact .tabs__btn {
    transition: none;
  }
  .page-contact .pc-scene:hover {
    transform: none;
  }
}