/* ===== contact 页面专属样式 ===== */
.page-contact {
  --hero-min-height: 360px;
  --card-offset: 1.5rem;
  --banner-bg: linear-gradient(135deg, rgba(0,229,255,0.08) 0%, rgba(179,136,255,0.06) 100%);
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding: 1rem var(--spacing-lg) 0;
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.page-contact .breadcrumb-link {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-contact .breadcrumb-link:hover {
  color: var(--color-accent-gold);
}
.page-contact .breadcrumb-sep {
  margin: 0 0.5rem;
}
.page-contact .breadcrumb-current {
  color: var(--color-primary-text);
}

/* 首屏框景 */
.page-contact .hero-frame {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.page-contact .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-contact .hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(0.4) saturate(0.8);
  transition: transform 0.3s ease;
}
/* 背景微动效（缓慢移动网格） */
@media (prefers-reduced-motion: no-preference) {
  .page-contact .hero-image {
    animation: slowGridShift 20s ease-in-out infinite alternate;
  }
}
@keyframes slowGridShift {
  0% { transform: scale(1.02) translate(0, 0); }
  100% { transform: scale(1.08) translate(-1%, 1%); }
}
.page-contact .hero-content {
  position: relative;
  z-index: 1;
  padding: 2rem var(--spacing-lg);
  text-align: center;
  width: 100%;
}
.page-contact .hero-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: var(--fs-heading-xl);
  line-height: 1.1;
  letter-spacing: var(--ls-heading);
  color: var(--color-primary-text);
  margin: 0 0 0.5rem;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5);
}
.page-contact .hero-subtitle {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text-body);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--lh-body);
}

/* 联系方式卡片区 */
.page-contact .section {
  padding: var(--spacing-xl) var(--spacing-lg);
}
.page-contact .section-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: var(--fs-heading-md);
  letter-spacing: var(--ls-heading);
  color: var(--color-accent-gold);
  margin: 0 0 var(--spacing-lg);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-divider);
  display: inline-block;
}
.page-contact .contact-grid {
  display: grid;
  gap: var(--spacing-lg);
}
.page-contact .contact-card {
  background: var(--color-neutral-dark);
  border: 1px solid var(--color-divider);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}
.page-contact .contact-card:hover {
  transform: scale(1.03);
  border-color: var(--color-accent-gold);
  box-shadow: 0 4px 24px rgba(255,215,0,0.15);
}
.page-contact .contact-card--offset {
  margin-top: var(--card-offset);
}
.page-contact .card-icon {
  margin-bottom: var(--spacing-md);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-contact .icon-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  display: block;
}
.page-contact .card-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-heading);
  font-size: var(--fs-heading-sm);
  color: var(--color-primary-text);
  margin: 0 0 var(--spacing-sm);
}
.page-contact .card-text {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text-body);
  margin: 0 0 var(--spacing-sm);
  line-height: var(--lh-body);
}
.page-contact .contact-link {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-contact .contact-link:hover {
  color: var(--color-accent-gold);
  text-decoration: underline;
}
.page-contact .card-hint {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  margin: 0;
}

/* 响应说明横幅 */
.page-contact .response-banner {
  background: var(--banner-bg);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.page-contact .response-inner {
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
}
.page-contact .response-title {
  margin-bottom: var(--spacing-md);
}
.page-contact .response-text {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-primary-text);
  line-height: var(--lh-body);
  max-width: 600px;
  margin: 0 auto var(--spacing-sm);
}
.page-contact .response-note {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  margin: 0;
}

/* 信息声明 */
.page-contact .notice-box {
  background: rgba(179,136,255,0.06);
  border-left: 3px solid var(--color-accent-purple);
  padding: var(--spacing-lg);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  max-width: 720px;
  margin: 0 auto;
}
.page-contact .notice-box p {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text-body);
  line-height: var(--lh-body);
  margin: 0 0 var(--spacing-sm);
}
.page-contact .notice-box p:last-child {
  margin-bottom: 0;
}
.page-contact .notice-link {
  color: var(--color-accent-cyan);
  text-decoration: underline;
  transition: color var(--transition-fast);
}
.page-contact .notice-link:hover {
  color: var(--color-accent-gold);
}

/* 滚动显现 */
.page-contact .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-contact .reveal--visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-contact .reveal {
    opacity: 1;
    transform: none;
  }
}

/* 返回顶部 */
.page-contact .scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-divider);
  background: var(--color-primary-bg);
  color: var(--color-accent-gold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.page-contact .scroll-top:hover {
  transform: scale(1.1);
  border-color: var(--color-accent-gold);
}
/* 简单模拟滚动后可见（由JS添加scrolled class到page-contact? 但约定只使用data-scroll-top属性，由全局JS控制。这里保留样式，但未激活时隐藏。实际交互需要额外JS，此处仅提供样式基础。 */
.page-contact .scroll-top[data-visible] {
  opacity: 0.8;
  pointer-events: auto;
}

/* 移动端优先：单列 */
@media (max-width: 767px) {
  .page-contact .contact-grid {
    grid-template-columns: 1fr;
  }
  .page-contact .hero-title {
    font-size: var(--fs-heading-lg);
  }
  .page-contact .card--offset {
    margin-top: 0;
  }
  .page-contact .section {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}

/* 平板及以上 */
@media (min-width: 768px) {
  .page-contact .contact-grid {
    grid-template-columns: 1fr 1fr 1fr;
    align-items: start;
  }
  .page-contact .hero-frame {
    min-height: 420px;
  }
  .page-contact .hero-title {
    font-size: var(--fs-heading-xl);
  }
}

/* 桌面大屏 */
@media (min-width: 1200px) {
  .page-contact .hero-frame {
    min-height: 480px;
  }
  .page-contact .contact-card {
    padding: var(--spacing-xl);
  }
}