/* =========================================================
   页面：联系入口 (Page: Contact)
   作用域：.page-contact
   ========================================================= */
.page-contact {
  --contact-highlight: #E53935;
  --contact-blue: #1E88E5;
  --contact-silver: #B0BEC5;
  --contact-bg-light: #FAFAFA;
  --contact-bg-dark: #121212;
  --contact-text: #E0E0E0;
  --contact-radius: 16px;
  --contact-gap: 1.5rem;
  --contact-font-head: 'Roboto Condensed', 'Impact', 'Arial Black', sans-serif;
  --contact-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --contact-font-num: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  background: var(--contact-bg-dark);
  color: var(--contact-text);
  padding: 2rem 0 4rem;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  color: var(--contact-silver);
}
.page-contact .breadcrumb a {
  color: var(--contact-silver);
  text-decoration: none;
  transition: color 0.2s;
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--contact-highlight);
  outline: 2px solid currentColor;
  outline-offset: 2px;
}
.page-contact .breadcrumb .breadcrumb-sep {
  display: inline-block;
}

/* 标题区 */
.page-contact .page-contact-title {
  font-family: var(--contact-font-head);
  font-size: 3rem;
  line-height: 1.1;
  margin: 0 0 0.25rem;
  color: var(--contact-bg-light);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.page-contact .page-contact-intro {
  font-family: var(--contact-font-body);
  font-size: 1.125rem;
  color: var(--contact-silver);
  margin-bottom: 2.5rem;
  line-height: 1.5;
}

/* 对称双列网格 — 移动端单列，桌面端双列 */
.page-contact .page-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

@media (min-width: 768px) {
  .page-contact .page-contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* 左侧：联系方式卡片 */
.page-contact .page-contact-info {
  background: rgba(255,255,255,0.04);
  border-radius: var(--contact-radius);
  padding: 2rem;
  backdrop-filter: blur(4px);
}

.page-contact .page-contact-info-title {
  font-family: var(--contact-font-head);
  font-size: 1.5rem;
  color: var(--contact-highlight);
  margin: 0 0 1.5rem;
  letter-spacing: 0.03em;
  border-bottom: 2px solid rgba(229,57,53,0.3);
  padding-bottom: 0.5rem;
  display: inline-block;
}

/* 单个联系项 */
.page-contact .page-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
  transition: background 0.2s;
  border-radius: 8px;
}
.page-contact .page-contact-item:last-child {
  border-bottom: none;
}
.page-contact .page-contact-item:hover,
.page-contact .page-contact-item:focus-within {
  background: rgba(229,57,53,0.08);
}

.page-contact .page-contact-icon {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-contact .page-contact-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(1.2);
}

.page-contact .page-contact-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.page-contact .page-contact-label {
  font-family: var(--contact-font-head);
  font-size: 0.875rem;
  text-transform: uppercase;
  color: var(--contact-silver);
  letter-spacing: 0.05em;
}
.page-contact .page-contact-value {
  font-family: var(--contact-font-body);
  font-size: 1.25rem;
  color: var(--contact-bg-light);
  text-decoration: none;
  word-break: break-all;
  transition: color 0.2s;
}
.page-contact .page-contact-value:hover,
.page-contact .page-contact-value:focus-visible {
  color: var(--contact-highlight);
  outline: 2px solid currentColor;
  outline-offset: 2px;
}
.page-contact .page-contact-hint {
  font-size: 0.75rem;
  color: var(--contact-silver);
  opacity: 0.6;
}

/* 提示 */
.page-contact .page-contact-note {
  margin-top: 1.5rem;
  background: rgba(229,57,53,0.08);
  border-left: 4px solid var(--contact-highlight);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--contact-text);
}
.page-contact .page-contact-note .page-contact-link {
  color: var(--contact-highlight);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact-link {
  color: var(--contact-highlight);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}
.page-contact-link:hover,
.page-contact-link:focus-visible {
  opacity: 0.8;
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* 右侧：抽象地图 */
.page-contact .page-contact-map {
  background: rgba(30,136,229,0.04);
  border-radius: var(--contact-radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact .page-contact-map-figure {
  margin: 0;
  position: relative;
  width: 100%;
}
.page-contact .page-contact-map-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform 0.25s ease, box-shadow 0.25s;
  cursor: pointer;
}
.page-contact .page-contact-map-img:hover,
.page-contact .page-contact-map-img:focus-visible {
  transform: scale(1.02);
  box-shadow: 0 6px 30px rgba(30,136,229,0.3);
  outline: 3px solid var(--contact-blue);
  outline-offset: 4px;
}

.page-contact .page-contact-map-caption {
  font-family: var(--contact-font-body);
  font-size: 0.875rem;
  color: var(--contact-silver);
  margin-top: 0.5rem;
  text-align: center;
}

/* 可展开详情 */
.page-contact .page-contact-map-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s;
  background: rgba(30,136,229,0.08);
  border-radius: 8px;
  padding: 0 1rem;
  color: var(--contact-text);
  font-size: 1rem;
  font-family: var(--contact-font-body);
}
.page-contact .page-contact-map-detail[data-open="true"] {
  max-height: 200px;
  padding: 1rem;
}

/* 底部区域 */
.page-contact .page-contact-banner {
  margin-top: 2.5rem;
  background: linear-gradient(135deg, rgba(229,57,53,0.12), rgba(30,136,229,0.08));
  border-radius: var(--contact-radius);
  padding: 1.75rem 2rem;
  border: 1px solid rgba(229,57,53,0.2);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact .page-contact-banner-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-contact .page-contact-banner-content p {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.4;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-contact .badge {
  display: inline-block;
  background: var(--contact-highlight);
  color: #FAFAFA;
  font-family: var(--contact-font-head);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25em 0.85em;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
}
.page-contact .badge-blue {
  background: var(--contact-blue);
  color: #FAFAFA;
}

.page-contact .page-contact-banner-extra {
  font-size: 0.9rem;
  color: var(--contact-silver);
  margin: 0;
  text-align: center;
}
.page-contact .page-contact-banner-extra .page-contact-link {
  color: var(--contact-blue);
}

/* 辅助类 */
.page-contact .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* 移动端微调 */
@media (max-width: 767px) {
  .page-contact {
    padding: 1.5rem 0 2.5rem;
  }
  .page-contact .page-contact-title {
    font-size: 2rem;
  }
  .page-contact .page-contact-info {
    padding: 1.25rem;
  }
  .page-contact .page-contact-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .page-contact .page-contact-icon {
    width: 80px;
    height: 80px;
  }
  .page-contact .page-contact-value {
    font-size: 1.1rem;
  }
  .page-contact .page-contact-map {
    padding: 1rem;
  }
  .page-contact .page-contact-banner {
    padding: 1.25rem;
  }
  .page-contact .page-contact-banner-content p {
    font-size: 1rem;
  }
}