/* ========================================
   山东厚普机电设备有限公司 - 自定义样式
   ======================================== */

/* 始终显示滚动条，防止异步内容加载时布局偏移 */
html {
  overflow-y: scroll;
}

/* ---------- 轮播动画 ---------- */
.carousel-slide {
  transition: opacity 0.8s ease-in-out;
}

.carousel-dot {
  transition: all 0.3s ease;
}

.carousel-dot.active {
  width: 2rem;
  border-radius: 9999px;
}

/* ---------- 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- Timeline ---------- */
.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e5e7eb;
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .timeline-item::before {
    left: 1rem;
  }
}

.timeline-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #1e40af;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #1e40af;
  position: absolute;
  left: 50%;
  top: 1.5rem;
  transform: translateX(-50%);
  z-index: 1;
}

@media (max-width: 768px) {
  .timeline-dot {
    left: 1rem;
  }
}

/* ---------- 导航栏 ---------- */
#main-nav {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
}

/* 滚动后添加阴影 */
.nav-scrolled {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 汉堡图标固定黑色 */
#hamburger-btn {
  color: #374151;
}

/* ---------- 移动端下拉菜单 ---------- */
#mobile-menu {
  position: absolute;
  top: 100%;
  right: 0.5rem;
  width: 12rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  transform-origin: top right;
  transform: scale(0.85);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1),
              opacity 0.15s ease;
}

#mobile-menu.menu-open {
  transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 1200px 响应式断点 ---------- */
.mobile-only {
  display: block;
}
.desktop-nav {
  display: none;
}

@media (min-width: 1200px) {
  .mobile-only {
    display: none !important;
  }
  .desktop-nav {
    display: flex !important;
  }
  #mobile-menu {
    display: none !important;
  }
}

/* ---------- 导航栏下划线高亮动画 ---------- */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-link.active::after {
  width: 100%;
  left: 0;
}

/* ---------- 统一页面 Banner ---------- */
.page-banner {
  position: relative;
  padding-top: 6rem;
  padding-bottom: 3rem;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #1e3a8a 100%);
}

@media (min-width: 1024px) {
  .page-banner {
    padding-top: 8rem;
    padding-bottom: 4rem;
  }
}

.page-banner h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .page-banner h1 {
    font-size: 2.25rem;
  }
}

.page-banner .banner-desc {
  color: #bfdbfe;
  font-size: 1rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  white-space: nowrap;
}

.page-banner .breadcrumb {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: #93c5fd;
}

.page-banner .breadcrumb a {
  color: #93c5fd;
  transition: color 0.2s;
}

.page-banner .breadcrumb a:hover {
  color: #fff;
}

/* ---------- 业务入口卡片 hover ---------- */
.gateway-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gateway-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* ---------- 产品卡片 ---------- */
.product-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 动画未结束时禁止产品卡片 hover transition 覆盖 reveal */
.product-card.reveal:not(.visible) {
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

/* ---------- 数字计数器 ---------- */
.counter-value {
  font-variant-numeric: tabular-nums;
}

/* ---------- 分类标签 ---------- */
.category-tab {
  transition: all 0.2s ease;
}

.category-tab.active {
  background: #1e40af;
  color: #fff;
}

/* ---------- 参数表格响应式 ---------- */
@media (max-width: 768px) {
  .spec-table {
    display: block;
  }

  .spec-table thead {
    display: none;
  }

  .spec-table tbody tr {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 0.75rem;
  }

  .spec-table tbody td {
    display: flex;
    justify-content: space-between;
    padding: 0.375rem 0;
    border: none;
  }

  .spec-table tbody td::before {
    content: attr(data-label);
    font-weight: 600;
    color: #374151;
    margin-right: 1rem;
  }
}

/* ---------- 表单样式 ---------- */
.form-input {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  border-color: #1e40af;
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
  outline: none;
}

.form-input.error {
  border-color: #ef4444;
}

/* ---------- 页脚背景与文字颜色 ---------- */
#site-footer {
  background: #5A5959;
  color: #9D9D9D;
}

#site-footer h3 {
  color: #fff;
}

#site-footer p,
#site-footer li,
#site-footer span {
  color: #ffffffe3;
}

#site-footer a {
  color: #ffffffe3;
}

#site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

#site-footer .footer-copy,
#site-footer .footer-copy p {
  color: #B6B6B6;
}

#site-footer .footer-copy a {
  color: #B6B6B6;
  text-decoration: none;
}

#site-footer .footer-copy a:hover {
  color: #fff;
  text-decoration: underline;
}

/* ---------- Hero 渐变覆盖 ---------- */
.hero-overlay {
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.6) 0%,
    rgba(15, 23, 42, 0.6) 100%
  );
}