.page-contact {
  position: relative;
  padding: 0 0 var(--space-xl);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

/* ── 背景纹理 ── */
.page-contact__bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  opacity: 0.08;
  pointer-events: none;
  user-select: none;
}

.page-contact__overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at 20% 30%, rgba(26,92,255,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 70%, rgba(123,47,247,0.05) 0%, transparent 50%);
}

/* ── 容器提升层级 ── */
.page-contact .container {
  position: relative;
  z-index: 2;
}

/* ── 面包屑 ── */
.page-contact__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  padding-top: var(--space-md);
}

.page-contact__breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-contact__breadcrumb a:hover {
  opacity: 0.7;
}

.page-contact__breadcrumb-sep {
  color: var(--color-text-secondary);
  opacity: 0.4;
}

.page-contact__breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* ── 标题区 ── */
.page-contact__intro {
  padding: var(--space-lg) 0 var(--space-lg);
  text-align: center;
}

.page-contact__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 8vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.02em;
}

.page-contact__subtitle {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 36rem;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── 联系渠道 ── */
.page-contact__channels {
  padding: var(--space-lg) 0;
}

.page-contact__cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

/* ── 单张卡片 ── */
.page-contact__card {
  position: relative;
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
}

.page-contact__card[data-accent="secondary"] {
  border-left-color: var(--color-accent-secondary);
}

.page-contact__card[data-accent="highlight"] {
  border-left-color: var(--color-accent-highlight);
}

.page-contact__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04);
}

/* ── 卡片图标 ── */
.page-contact__card-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 12px;
  margin-bottom: var(--space-xs);
  filter: drop-shadow(0 0 8px rgba(26,92,255,0.25));
  flex-shrink: 0;
}

.page-contact__card-icon--phone,
.page-contact__card-icon--map {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.page-contact__card-icon--phone {
  color: var(--color-accent-secondary);
}

.page-contact__card-icon--map {
  color: var(--color-accent-highlight);
}

/* ── 卡片标题 ── */
.page-contact__card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--color-text);
}

/* ── 链接 ── */
.page-contact__link {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  word-break: break-all;
  transition: opacity 0.2s;
  display: inline-block;
  padding: 0.2rem 0;
}

.page-contact__link:hover {
  opacity: 0.7;
  text-decoration: underline;
}

/* ── 卡片描述 ── */
.page-contact__card-desc {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: var(--space-xs) 0 0;
  max-width: 28rem;
}

.page-contact__card-desc--note {
  font-size: 0.8rem;
  opacity: 0.7;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: var(--space-xs);
  margin-top: var(--space-xs);
}

/* ── 地址 ── */
.page-contact__address {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

/* ── 响应时效 ── */
.page-contact__response {
  padding: var(--space-lg) 0;
}

.page-contact__response-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(26,92,255,0.15);
  box-shadow: inset 0 0 0 1px rgba(26,92,255,0.05);
}

.page-contact__response-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(26,92,255,0.08);
  color: var(--color-accent);
  border: 1px solid rgba(26,92,255,0.12);
}

.page-contact__response-content {
  flex: 1;
  min-width: 0;
}

.page-contact__response-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.page-contact__response-strong {
  color: var(--color-accent);
  font-weight: 700;
  text-shadow: 0 0 12px rgba(26,92,255,0.3);
}

.page-contact__response-note {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0;
  padding-left: 0.5rem;
  border-left: 2px solid var(--color-accent-secondary);
}

/* ── 帮助链接 ── */
.page-contact__help {
  padding: var(--space-xl) 0 0;
}

.page-contact__help-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.page-contact__help-label {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
}

.page-contact__help-links .btn {
  font-size: 0.85rem;
  padding: 0.5rem 1.2rem;
}

/* ── 桌面端 (≥768px) ── */
@media (min-width: 768px) {
  .page-contact__intro {
    padding: var(--space-xl) 0 var(--space-lg);
  }

  .page-contact__breadcrumb {
    font-size: 0.8rem;
    justify-content: center;
  }

  .page-contact__cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .page-contact__card {
    padding: var(--space-lg) var(--space-md);
  }

  .page-contact__response-card {
    padding: var(--space-lg);
    align-items: center;
  }

  .page-contact__response-icon {
    width: 56px;
    height: 56px;
  }

  .page-contact__response-text {
    font-size: 1.05rem;
  }

  .page-contact__help-links {
    gap: var(--space-md);
  }
}

/* ── 大桌面端 (≥1024px) ── */
@media (min-width: 1024px) {
  .page-contact__cards {
    gap: var(--space-lg);
  }

  .page-contact__card {
    padding: var(--space-xl) var(--space-lg);
  }

  .page-contact__card-icon {
    width: 64px;
    height: 64px;
  }

  .page-contact__card-icon--phone,
  .page-contact__card-icon--map {
    width: 64px;
    height: 64px;
  }

  .page-contact__response-card {
    padding: var(--space-xl);
  }
}

/* ── 确保背景不干扰内容点击 ── */
.page-contact__bg,
.page-contact__overlay {
  pointer-events: none;
}