.page-contact {
  background: var(--sand-050);
  color: var(--ink-900);
  font-family: var(--font-sans);
}

.page-contact .breadcrumb {
  padding-top: 20px;
  font-size: 13px;
}

.page-contact .breadcrumb a {
  color: var(--ink-500);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--red-600);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 22px 0 48px;
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red-600);
  margin: 0;
}

.page-contact .hero-copy h1 {
  font-size: clamp(30px, 7.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  margin: 12px 0 18px;
}

.page-contact .section-lede {
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--ink-900);
  margin: 0;
}

.page-contact .section-lede a,
.page-contact .section-note a,
.page-contact .region-list a {
  color: var(--red-600);
  text-decoration: none;
  border-bottom: 1px solid var(--red-100);
}

.page-contact .section-lede a:hover,
.page-contact .section-note a:hover,
.page-contact .region-list a:hover {
  border-bottom-color: var(--red-600);
}

.page-contact .tier-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .tier-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-pill);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: border-color var(--duration), color var(--duration), transform var(--duration);
}

.page-contact .tier-link .mono {
  font-size: 12px;
  color: var(--red-600);
}

.page-contact .tier-link:hover {
  border-color: var(--red-600);
  color: var(--red-600);
  transform: translateY(-1px);
}

.page-contact .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--sand-300);
}

.page-contact .hero-stats .stat {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
}

.page-contact .hero-stats .stat-value {
  font-size: 28px;
  line-height: 1;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .hero-stats .stat-unit {
  font-size: 13px;
  color: var(--ink-900);
}

.page-contact .hero-stats .stat-label {
  display: block;
  flex-basis: 100%;
  font-size: 12px;
  color: var(--ink-500);
  margin-top: 4px;
}

/* ---------- 侧边咨询卡 ---------- */
.page-contact .aside-card {
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-top: 3px solid var(--red-600);
  border-radius: var(--radius-card);
  padding: 24px 22px 26px;
  box-shadow: 0 24px 48px -38px rgba(18, 16, 14, 0.55);
}

.page-contact .aside-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

.page-contact .aside-lede {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-500);
  margin: 0 0 16px;
}

.page-contact .aside-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .aside-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--sand-300);
}

.page-contact .aside-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .aside-list .mono {
  color: var(--red-600);
  font-size: 12px;
  flex: 0 0 auto;
  padding-top: 2px;
}

.page-contact .aside-meta {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
  margin: 0 0 18px;
}

.page-contact .aside-meta .mono {
  color: var(--ink-900);
}

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

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding: 48px 0;
}

.page-contact .section--tint {
  background: var(--glacier-100);
}

.page-contact .section-head {
  margin-bottom: 28px;
}

.page-contact .section-title {
  font-size: clamp(23px, 4vw, 34px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
}

.page-contact .section-note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--red-600);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-500);
  max-width: 76ch;
}

/* ---------- 四级合作方式 ---------- */
.page-contact .tier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .tier-card {
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-card);
  padding: 22px 20px 24px;
  scroll-margin-top: 110px;
  transition: border-color var(--duration), box-shadow var(--duration);
}

.page-contact .tier-card:hover {
  border-color: var(--red-600);
  box-shadow: 0 22px 44px -40px rgba(18, 16, 14, 0.6);
}

.page-contact .tier-index {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red-600);
  border-bottom: 1px solid var(--red-100);
  padding-bottom: 3px;
}

.page-contact .tier-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 12px 0 8px;
  letter-spacing: -0.01em;
}

.page-contact .tier-fit {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-500);
  margin: 0 0 8px;
}

.page-contact .tier-fields {
  margin: 0;
}

.page-contact .tier-fields dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  margin-top: 12px;
}

.page-contact .tier-fields dd {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 区域分层 ---------- */
.page-contact .region-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .region-card {
  position: relative;
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-card);
  padding: 20px 20px 20px 26px;
  overflow: hidden;
}

.page-contact .region-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: var(--region-color, var(--ink-500));
}

.page-contact .region-card--xinjiang {
  --region-color: var(--red-600);
}

.page-contact .region-card--northwest {
  --region-color: var(--teal-700);
}

.page-contact .region-card--north {
  --region-color: var(--amber-600);
}

.page-contact .region-card--south {
  --region-color: var(--ink-500);
}

.page-contact .region-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-contact .region-head h3 {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
}

.page-contact .region-status {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-900);
  background: var(--sand-050);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
}

.page-contact .region-card p {
  font-size: 14px;
  line-height: 1.75;
  margin: 0 0 12px;
}

.page-contact .region-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .region-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-500);
}

.page-contact .region-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--region-color, var(--ink-500));
}

.page-contact .region-figure {
  margin: 28px 0 0;
}

/* ---------- 图片容器 ---------- */
.page-contact .media {
  margin: 0;
}

.page-contact .media-frame {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--glacier-100);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .media-caption {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-500);
  margin-top: 10px;
}

/* ---------- 表格 ---------- */
.page-contact .table-wrap {
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-card);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-contact .table-caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-500);
  padding: 14px 18px 0;
}

.page-contact .table-wrap .data-table {
  min-width: 700px;
}

.page-contact .data-table td,
.page-contact .data-table th {
  vertical-align: top;
  line-height: 1.7;
}

.page-contact .policy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-contact .policy-card {
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-card);
  padding: 18px 20px 20px;
}

.page-contact .policy-card.card-accent {
  background: var(--red-100);
  border-color: transparent;
}

.page-contact .policy-card h3 {
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 8px;
}

.page-contact .policy-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-900);
  margin: 0;
}

/* ---------- 流程折叠 ---------- */
.page-contact .accordion {
  display: grid;
  gap: 12px;
}

.page-contact .accordion-item {
  background: var(--snow);
  border: 1px solid var(--sand-300);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.page-contact .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 20px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--ink-900);
}

.page-contact .accordion-trigger:focus-visible {
  outline: 2px solid var(--red-600);
  outline-offset: 2px;
}

.page-contact .step-num {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--red-600);
  color: var(--snow);
  font-size: 12.5px;
}

.page-contact .step-title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .accordion-panel {
  padding: 0 20px 20px 66px;
}

.page-contact .accordion-panel p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-900);
  margin: 0;
}

.page-contact .accordion-panel .mono {
  color: var(--red-600);
}

/* ---------- 支持体系 ---------- */
.page-contact .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .support-figure {
  margin: 0;
}

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

.page-contact .support-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 6px 12px;
  padding: 16px 0;
  border-top: 1px solid var(--sand-300);
}

.page-contact .support-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .support-idx {
  grid-row: 1 / span 2;
  font-size: 13px;
  color: var(--red-600);
  padding-top: 3px;
}

.page-contact .support-list h3 {
  font-size: 16px;
  font-weight: 800;
  margin: 0;
}

.page-contact .support-list p {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-500);
  margin: 6px 0 0;
}

/* ---------- 联系与提交 ---------- */
.page-contact .section--dark {
  background: var(--ink-900);
  color: var(--sand-050);
  padding-bottom: 62px;
}

.page-contact .section--dark .section-title {
  color: var(--snow);
}

.page-contact .section--dark .section-lede {
  color: var(--sand-300);
}

.page-contact .section--dark .section-lede a {
  color: var(--snow);
  border-bottom-color: var(--red-600);
}

.page-contact .section--dark .eyebrow {
  color: var(--red-100);
}

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .contact-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sand-300);
}

.page-contact .contact-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-600);
}

.page-contact .archive-card {
  background: var(--snow);
  border-radius: var(--radius-card);
  padding: 6px 22px 22px;
  color: var(--ink-900);
}

.page-contact .archive-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-500);
  font-weight: 400;
  margin: 20px 0 6px;
}

.page-contact .archive-row {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--sand-300);
}

.page-contact .archive-row:last-of-type {
  border-bottom: 1px solid var(--sand-300);
}

.page-contact .archive-key {
  font-size: 12.5px;
  color: var(--ink-500);
}

.page-contact .archive-val {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  word-break: break-word;
}

.page-contact .archive-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--red-100);
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.75;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-contact .tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .policy-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .archive-row {
    grid-template-columns: 150px 1fr;
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .archive-key {
    padding-top: 3px;
  }
}

@media (min-width: 940px) {
  .page-contact .section {
    padding: 62px 0;
  }

  .page-contact .support-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
    gap: 36px;
  }

  .page-contact .contact-grid {
    grid-template-columns: 6fr 6fr;
    align-items: start;
    gap: 44px;
  }
}

@media (min-width: 1000px) {
  .page-contact .hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 44px;
  }

  .page-contact .aside-card {
    position: sticky;
    top: 96px;
  }

  .page-contact .contact-hero {
    padding-top: 30px;
  }
}

@media (min-width: 1120px) {
  .page-contact .tier-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tier-link,
  .page-contact .tier-card {
    transition: none;
  }

  .page-contact .tier-link:hover {
    transform: none;
  }
}