/* ============================================================
   page-contact —— 联系我们
   作用域限定：所有选择器以 .page-contact 开头
   移动端优先 + 渐进增强交互
   ============================================================ */

/* ---------- 布局变量 ---------- */
.page-contact {
  --contact-gap: var(--space-lg, 32px);
  --contact-card-min: 260px;
  --contact-hero-min-h: 320px;
  display: block;
  position: relative;
  background: var(--c-bg, #0B1A2E);
  color: var(--c-text, #F4F4F4);
  font-family: var(--font-body, 'Open Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact__breadcrumb {
  position: relative;
  z-index: 2;
  padding: var(--space-md, 16px) var(--space-md, 16px) 0;
  max-width: 1280px;
  margin: 0 auto;
  font-size: var(--caption, 12px);
  color: var(--c-text-secondary, #CCCCCC);
}
.page-contact__breadcrumb-inner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs, 4px);
}
.page-contact__breadcrumb-link {
  color: var(--c-accent-blue, #00B4D8);
  text-decoration: none;
  transition: color var(--transition, 0.3s ease);
}
.page-contact__breadcrumb-link:hover {
  color: var(--c-accent-gold, #FFD700);
}
.page-contact__breadcrumb-sep {
  color: var(--c-text-secondary, #CCCCCC);
}
.page-contact__breadcrumb-current {
  color: var(--c-text, #F4F4F4);
  font-weight: 600;
}

/* ---------- Hero 区 ---------- */
.page-contact__hero {
  position: relative;
  min-height: var(--contact-hero-min-h);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: calc(var(--space-md, 16px) * -1);
  padding-top: var(--space-md, 16px);
}
.page-contact__hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-contact__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}
.page-contact__hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(11,26,46,0.92) 0%, rgba(26,26,46,0.80) 50%, rgba(11,26,46,0.92) 100%);
}
.page-contact__hero-body {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl, 64px) var(--space-md, 16px) var(--space-lg, 32px);
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}
.page-contact__hero-title {
  font-family: var(--font-heading, 'Montserrat', 'Helvetica Neue', Arial, sans-serif);
  font-size: var(--h1, clamp(36px, 6vw, 64px));
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 var(--space-sm, 8px);
  color: var(--c-text, #F4F4F4);
  letter-spacing: -0.02em;
}
.page-contact__hero-desc {
  font-size: var(--body, 16px);
  line-height: 1.7;
  color: var(--c-text-secondary, #CCCCCC);
  max-width: 560px;
  margin: var(--space-md, 16px) auto var(--space-lg, 32px);
}
.page-contact__hero-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md, 16px);
  flex-wrap: wrap;
}
.page-contact__hero-hours {
  font-size: var(--caption, 12px);
  color: var(--c-text-secondary, #CCCCCC);
  background: var(--c-glass, rgba(255,255,255,0.08));
  padding: var(--space-xs, 4px) var(--space-md, 16px);
  border-radius: var(--radius-sm, 4px);
  border: 1px solid var(--c-glass-border, rgba(255,255,255,0.12));
}

/* ---------- 联系卡片网格 ---------- */
.page-contact__channels {
  padding-top: 0;
  margin-top: calc(var(--space-lg, 32px) * -1);
  position: relative;
  z-index: 2;
}
.page-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: stretch;
}

/* ---------- 卡片 ---------- */
.page-contact__card {
  --card-glow: rgba(255,215,0,0.08);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-lg, 32px) var(--space-md, 16px);
  background: var(--c-glass, rgba(255,255,255,0.06));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--c-glass-border, rgba(255,255,255,0.10));
  border-radius: var(--radius, 8px);
  transition: transform var(--transition, 0.3s ease), box-shadow var(--transition, 0.3s ease), border-color var(--transition, 0.3s ease);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.page-contact__card::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px;
  right: -2px; bottom: -2px;
  border-radius: calc(var(--radius, 8px) + 2px);
  background: linear-gradient(135deg, rgba(255,215,0,0.06), transparent 60%);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition, 0.3s ease);
}
.page-contact__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(230,57,70,0.12), 0 0 0 1px rgba(255,215,0,0.15);
  border-color: rgba(255,215,0,0.20);
}
.page-contact__card:hover::before {
  opacity: 1;
}
.page-contact__card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(230,57,70,0.12), 0 0 0 2px rgba(255,215,0,0.25);
  border-color: var(--c-accent-gold, #FFD700);
}

/* ---------- 卡片图标 ---------- */
.page-contact__card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md, 16px);
  color: var(--c-accent-gold, #FFD700);
  background: rgba(255,215,0,0.08);
  border-radius: var(--radius-sm, 4px);
}
.page-contact__card-icon svg {
  display: block;
}
.page-contact__card-icon-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm, 4px);
  opacity: 0.9;
}

/* ---------- 卡片文字 ---------- */
.page-contact__card-heading {
  font-family: var(--font-heading, 'Montserrat', 'Helvetica Neue', Arial, sans-serif);
  font-size: var(--h4, clamp(18px, 2.2vw, 24px));
  font-weight: 700;
  margin: 0 0 var(--space-xs, 4px);
  color: var(--c-text, #F4F4F4);
  line-height: 1.3;
}
.page-contact__card-value {
  font-size: var(--body, 16px);
  line-height: 1.5;
  margin: var(--space-xs, 4px) 0;
  color: var(--c-text, #F4F4F4);
  word-break: break-all;
  font-weight: 400;
  text-decoration: none;
  transition: color var(--transition, 0.3s ease);
}
.page-contact__card-value--gold {
  font-weight: 700;
  color: var(--c-accent-gold, #FFD700);
  font-size: calc(var(--body, 16px) * 1.15);
}
.page-contact__card-value--gold:hover {
  color: #FFE44D;
}
.page-contact__card-note {
  font-size: var(--caption, 12px);
  line-height: 1.6;
  color: var(--c-text-secondary, #CCCCCC);
  margin: var(--space-sm, 8px) 0 0;
}

/* ---------- 卡片内链接（邮箱） ---------- */
.page-contact__card a.page-contact__card-value--gold {
  cursor: pointer;
  position: relative;
}
.page-contact__card a.page-contact__card-value--gold::after {
  content: '复制';
  font-size: 11px;
  font-weight: 400;
  color: var(--c-accent-blue, #00B4D8);
  background: rgba(0,180,216,0.10);
  padding: 2px 8px;
  border-radius: var(--radius-sm, 4px);
  margin-left: var(--space-sm, 8px);
  transition: background var(--transition, 0.3s ease), color var(--transition, 0.3s ease);
  white-space: nowrap;
}
.page-contact__card a.page-contact__card-value--gold:hover::after {
  background: rgba(0,180,216,0.20);
  color: var(--c-accent-gold, #FFD700);
}

/* ---------- 电话卡片复制提示 ---------- */
.page-contact__card--phone .page-contact__card-value--gold {
  cursor: pointer;
  position: relative;
  display: inline-block;
}
.page-contact__card--phone .page-contact__card-value--gold::after {
  content: '复制';
  font-size: 11px;
  font-weight: 400;
  color: var(--c-accent-blue, #00B4D8);
  background: rgba(0,180,216,0.10);
  padding: 2px 8px;
  border-radius: var(--radius-sm, 4px);
  margin-left: var(--space-sm, 8px);
  transition: background var(--transition, 0.3s ease), color var(--transition, 0.3s ease);
  white-space: nowrap;
}
.page-contact__card--phone .page-contact__card-value--gold:hover::after {
  background: rgba(0,180,216,0.20);
  color: var(--c-accent-gold, #FFD700);
}

/* ---------- 底部脚注 ---------- */
.page-contact__footnote {
  padding: var(--space-lg, 32px) 0 var(--space-xl, 64px);
  border-top: 1px solid var(--c-glass-border, rgba(255,255,255,0.06));
  margin-top: var(--space-lg, 32px);
}
.page-contact__footnote-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md, 16px);
  text-align: center;
}
.page-contact__footnote-trust {
  font-size: var(--caption, 12px);
  color: var(--c-text-secondary, #CCCCCC);
  margin: 0;
  max-width: 480px;
  line-height: 1.6;
}
.page-contact__footnote-actions {
  display: flex;
  gap: var(--space-md, 16px);
  flex-wrap: wrap;
  justify-content: center;
}
.page-contact__btn {
  font-size: var(--caption, 12px);
  padding: var(--space-sm, 8px) var(--space-lg, 32px);
  border-radius: var(--radius, 8px);
  text-decoration: none;
  transition: background var(--transition, 0.3s ease), transform var(--transition, 0.3s ease);
}
.page-contact__btn:hover {
  transform: scale(1.03);
}

/* ---------- 装饰速度线 ---------- */
.page-contact__speed-lines {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  z-index: 0;
  pointer-events: none;
  opacity: 0.3;
}

/* ---------- 滚动显现（渐进增强） ---------- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.page-contact [data-reveal][data-reveal-visible] {
  opacity: 1;
  transform: translateY(0);
}
.page-contact [data-reveal-delay="100"] { transition-delay: 0.1s; }
.page-contact [data-reveal-delay="200"] { transition-delay: 0.2s; }
.page-contact [data-reveal-delay="300"] { transition-delay: 0.3s; }
.page-contact [data-reveal-delay="400"] { transition-delay: 0.4s; }

/* 尊重用户减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-contact__card {
    transition: none;
  }
  .page-contact__card:hover {
    transform: none;
  }
}

/* ============================================================
   平板 ≥ 640px
   ============================================================ */
@media (min-width: 640px) {
  .page-contact__card {
    padding: var(--space-lg, 32px) var(--space-lg, 32px);
  }
  .page-contact__hero-body {
    padding: var(--space-xl, 64px) var(--space-lg, 32px) var(--space-xl, 64px);
  }
  .page-contact__breadcrumb {
    padding: var(--space-md, 16px) var(--space-lg, 32px) 0;
  }
}

/* ============================================================
   平板 ≥ 768px —— 2 列网格
   ============================================================ */
@media (min-width: 768px) {
  .page-contact__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact__hero {
    min-height: 360px;
  }
  .page-contact__hero-title {
    font-size: var(--h1, clamp(36px, 6vw, 64px));
  }
  .page-contact__card-heading {
    font-size: var(--h3, clamp(22px, 3vw, 32px));
  }
  .page-contact__footnote-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ============================================================
   桌面 ≥ 1024px —— 4 列网格 + 更大留白
   ============================================================ */
@media (min-width: 1024px) {
  .page-contact__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact__hero {
    min-height: 400px;
  }
  .page-contact__hero-body {
    padding: var(--space-xl, 64px) var(--space-lg, 32px) 80px;
  }
  .page-contact__hero-desc {
    font-size: calc(var(--body, 16px) * 1.1);
  }
  .page-contact__card {
    padding: var(--space-xl, 64px) var(--space-lg, 32px);
  }
  .page-contact__card-value--gold {
    font-size: calc(var(--body, 16px) * 1.2);
  }
  .page-contact__footnote {
    padding: var(--space-lg, 32px) 0 80px;
  }
}

/* ============================================================
   大桌面 ≥ 1280px —— 内容宽度固定
   ============================================================ */
@media (min-width: 1280px) {
  .page-contact .b-container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
  }
  .page-contact__hero-body {
    max-width: 800px;
  }
}

/* ============================================================
   辅助类：确保所有图片响应式
   ============================================================ */
.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   数据复制交互的视觉反馈（由 JS 动态添加类）
   ============================================================ */
.page-contact__card--copied .page-contact__card-value--gold::after {
  content: '已复制';
  color: var(--c-accent-gold, #FFD700);
  background: rgba(255,215,0,0.15);
}
.page-contact__card--copied a.page-contact__card-value--gold::after {
  content: '已复制';
  color: var(--c-accent-gold, #FFD700);
  background: rgba(255,215,0,0.15);
}

/* ============================================================
   无障碍：焦点样式
   ============================================================ */
.page-contact a:focus-visible,
.page-contact .b-btn:focus-visible,
.page-contact [tabindex]:focus-visible {
  outline: 2px solid var(--c-accent-gold, #FFD700);
  outline-offset: 2px;
}

/* ============================================================
   暗色模式下的卡片背景微调（与系统无关，始终暗色）
   ============================================================ */
.page-contact__card {
  background: var(--c-glass, rgba(255,255,255,0.06));
}
@media (prefers-color-scheme: light) {
  /* 保持暗色品牌风格，不跟随系统 */
}