/* 基础样式 - 所有页面共用 */
:root {
  --primary-color: #4da6ff; /* 天蓝色主色调 */
  --primary-light: #e6f0ff; /* 浅色天蓝 */
  --primary-dark: #007bff; /* 深色天蓝 */
  --text-dark: #333333;
  --text-light: #ffffff;
  --gray-light: #f8f9fa;
  /* 灰色系配色（用于页脚） */
  --footer-bg: #444444; /* 页脚背景深灰色 */
  --footer-light: #555555; /* 页脚亮一点的灰色 */
  --footer-border: #666666; /* 页脚边框灰色 */
  --transition: all 0.3s ease;
}
a {
  color: var(--text-darkr);
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
body {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-dark);
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
}

.section-padding {
  padding: 80px 0;
}

.section-inner {
  padding: 0 15px;
  max-width: 1920px;
  margin: 0 auto;
}

.container-wide {
  padding: 0 15px;
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title h2 {
  color: var(--primary-dark);
  font-weight: 700;
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
}
/* 悬浮二维码样式 */
.floating-qrcode {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
}

.qrcode-toggle {
  background-color: var(--primary-color);
  color: white;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  width: 40px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qrcode-text {
  font-size: 14px;
  font-weight: 500;
  writing-mode: vertical-rl; /* 文字竖排显示 */
  /*text-orientation: upright;  文字垂直方向 */
  letter-spacing: 2px; /* 调整字间距 */
  line-height: 1.8; /* 调整行高 */
}

.qrcode-toggle:hover {
  background-color: var(--primary-dark);
  transform: scale(1.05); /* 保持垂直居中的同时放大 */
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.qrcode-popup {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background-color: white;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
  display: none;
  gap: 20px;
  min-width: 300px;
}

.qrcode-popup::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  border-width: 10px;
  border-style: solid;
  border-color: transparent transparent transparent white;
}

.qrcode-item {
  text-align: center;
}

.qrcode-item h4 {
  font-size: 14px;
  color: var(--text-dark);
  margin-bottom: 15px;
  font-weight: 600;
}

.qrcode-img {
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.qrcode-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid rgb(129, 129, 129);
}

/* 响应式调整 */
@media (max-width: 768px) {
  .floating-qrcode {
    right: 10px;
  }
  
  .qrcode-toggle {
    width: 35px;
    height: 100px;
  }
  
  .qrcode-text {
    font-size: 12px;
    letter-spacing: 1px;
  }
  
  .qrcode-popup {
    right: 55px;
    padding: 15px;
    min-width: 250px;
    gap: 15px;
  }
  
  .qrcode-img {
    width: 100px;
    height: 100px;
  }
}
/* 导航栏样式 - 公共部分 */
.navbar {
  background-color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: 0.8rem 1rem;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  width: 100%;
  margin: 0;
}

.navbar-scrolled {
  padding: 0.5rem 1rem !important;
  background-color: rgba(255, 255, 255, 0.98) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 15px;
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
}

.navbar-brand {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-dark) !important;
  display: flex;
  align-items: center;
  padding: 0;
  margin: 0;
  transition: all 0.3s ease;
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: all 0.3s ease;
  margin: 0;
}

.navbar-scrolled .logo-img {
  height: 36px;
}

.navbar-collapse {
  flex-grow: 0;
}

.navbar-nav {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.navbar-nav .nav-item {
  margin: 0;
  padding: 0;
  position: relative;
}

.navbar-nav .nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  margin: 0 10px;
  padding: 10px 15px;
  border-radius: 4px;
  transition: all 0.3s ease;
  display: block;
  position: relative;
  z-index: 1;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
  z-index: -1;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 100%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.navbar-toggler {
  border-color: var(--primary-color);
  margin: 0;
  transition: all 0.3s ease;
}

.navbar-toggler:hover {
  background-color: var(--primary-light);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2877, 166, 255, 0.7%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
/* 导航下拉菜单样式优化 - 添加到style.css */
.navbar-nav .dropdown {
  position: relative;
}

.navbar-nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding: 10px 0;
  margin: 0;
  background-color: white;
  border: none;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 1050;
}

/* 下拉菜单项样式 */
.navbar-nav .dropdown-item {
  padding: 10px 20px;
  color: var(--text-dark);
  transition: all 0.2s ease;
  position: relative;
}

.navbar-nav .dropdown-item:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
  padding-left: 25px;
}

.navbar-nav .dropdown-item::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--primary-color);
  transform: translateY(-50%) scale(0);
  transition: transform 0.2s ease;
}

.navbar-nav .dropdown-item:hover::before {
  transform: translateY(-50%) scale(1);
}

/* 显示下拉菜单 */
.navbar-nav .dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 下拉菜单分隔线 */
.navbar-nav .dropdown-divider {
  margin: 5px 0;
  border-color: rgba(0, 0, 0, 0.05);
}

/* 添加到style.css中 */
/* 下拉菜单悬停触发样式 */
.navbar-nav .dropdown {
  position: relative;
}

/* 默认隐藏下拉菜单 */
.navbar-nav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
}

/* 悬停时显示下拉菜单 */
.navbar-nav .dropdown:hover .dropdown-menu {
  display: block;
  animation: fadeIn 0.3s ease;
}
    /* 下拉菜单箭头样式 */
    .dropdown-toggle-arrow {
      margin-left: 5px;
      transition: transform 0.3s ease;
    }
    .dropdown.show .dropdown-toggle-arrow {
      transform: rotate(180deg);
    }
/* 添加淡入动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 移动设备上仍然使用点击触发（保持良好的触摸体验） */
@media (max-width: 991px) {
  .navbar-nav .dropdown-menu {
    position: static;
    display: none;
  }
  
  .navbar-nav .dropdown.show .dropdown-menu {
    display: block;
    animation: none;
  }
}


/* 按钮样式 - 公共 */
.btn-primary {
  --bs-btn-bg: var(--primary-color);
  --bs-btn-border-color: var(--primary-color);
  --bs-btn-hover-bg: var(--primary-dark);
  --bs-btn-hover-border-color: var(--primary-dark);
  padding: 10px 25px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: all 0.6s ease;
  z-index: -1;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(77, 166, 255, 0.3);
}
.btn-primary-dt{
  border-radius: 30px;
  padding: 12px 30px;
  font-size: 1.1rem;
  display: inline-flex; /* 使用flex布局精确控制文字位置 */
  align-items: flex-start; /* 文字垂直居上对齐 */
  justify-content: center; /* 文字水平居中 */
  min-height: 48px; /* 固定按钮高度，确保居上效果明显 */
}
/* 页脚样式 */
footer {
  background-color: var(--footer-bg);
  color: var(--text-light);
  padding: 50px 0 30px;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 15px;
}

.footer-col {
  margin-bottom: 40px;
}

.footer-logo {
  margin-bottom: 25px;
}

.footer-logo img {
  height: 50px;
}

.footer-col h3 {
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: 25px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--primary-color);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 5px;
}

.copyright {
  text-align: center;
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.copyright a {
    color: white;
    text-decoration: none; /* 可选：去除下划线 */
}

/* 可选：添加悬停效果 */
.copyright a:hover {
    color: #f0f0f0; /* 稍浅的白色，增强交互感 */
    text-decoration: underline;
}

 /* Banner - 纯图，高度为首页Banner的一半 */
.about-banner {
  height: 70vh;
  overflow: hidden;
  margin-top: 70px; /* 为导航栏留出空间 */
  position: relative;
}

.about-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /*filter: brightness(0.8);*/ /* 暂时禁用亮度过滤 */
}

/* 面包屑导航与搜索条区域 */
.breadcrumb-section {
  background-color: var(--gray-light);
  padding: 20px 0;
  border-bottom: 1px solid #e0e0e0;
}

.breadcrumb-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2vw; /* 面包屑两侧增加边距 */
}

.breadcrumb {
  margin: 0;
  padding: 0;
  background-color: transparent;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: ">";
  color: #666;
}

.breadcrumb-item a {
  color: #666;
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
  color: var(--primary-color);
}

.breadcrumb-item.active {
  color: var(--primary-dark);
  font-weight: 500;
}

.breadcrumb-search {
  display: flex;
  align-items: center;
}

.breadcrumb-search input {
  padding: 8px 15px;
  border: 1px solid #ddd;
  border-radius: 4px 0 0 4px;
  outline: none;
  transition: border-color 0.3s ease;
  width: 200px;
}

.breadcrumb-search input:focus {
  border-color: var(--primary-color);
}

.breadcrumb-search button {
  padding: 8px 15px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.breadcrumb-search button:hover {
  background-color: var(--primary-dark);
}
@media (max-width: 1920px) {
  .container-wide {
padding-left: 2vw;
padding-right: 2vw;
  }
}

@media (max-width: 576px) {
  .breadcrumb-search input {
    width: 150px;
  }
}



/* 栏目导航 - 宽按钮带背景色样式（线条三角与按钮同宽） */
.subnav-section {
  padding: 35px 0;
  border-bottom: 1px solid #e0e0e0;
  background-color: white;
}

.subnav-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 20px;
}

.subnav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.subnav-item {
  margin: 0;
  position: relative;
}

.subnav-link {
  display: block;
  padding: 14px 32px; /* 加宽按钮 */
  color: var(--text-dark);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  background-color: var(--gray-light); /* 按钮背景色 */
  border-radius: 4px;
  width: auto; /* 宽度由内容和内边距决定 */
}

/* 底部线条装饰（与按钮同宽） */
.subnav-link::before {
  content: '';
  position: absolute;
  bottom: -2px; /* 紧贴按钮底部，消除间距 */
  left: 0; /* 从按钮左侧开始 */
  width: 100%; /* 与按钮同宽 */
  height: 2px;
  background-color: var(--primary-color);
  transform: scaleX(0); /* 初始不显示 */
  transition: transform 0.3s ease;
  transform-origin: center;
}

/* 朝下的小三角形装饰（与按钮同宽居中） */
.subnav-link::after {
  content: '';
  position: absolute;
  bottom: -8px; /* 位于线条正下方 */
  left: 50%;
  transform: translateX(-50%) scale(0); /* 初始不显示 */
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--primary-color);
  transition: all 0.3s ease;
}

.subnav-link:hover {
  color: var(--primary-dark);
  background-color: rgba(77, 166, 255, 0.1);
}

.subnav-link:hover::before {
  transform: scaleX(1); /* 显示线条 */
}

.subnav-link:hover::after {
  transform: translateX(-50%) scale(1); /* 显示三角形 */
}

.subnav-link.active {
  color: var(--primary-dark);
  background-color: rgba(77, 166, 255, 0.15);
}

.subnav-link.active::before {
  transform: scaleX(1);
  background-color: var(--primary-dark);
}

.subnav-link.active::after {
  transform: translateX(-50%) scale(1);
  border-top-color: var(--primary-dark);
}
/* 面包屑响应式调整 */
@media (max-width: 768px) {
  .subnav-list {
    gap: 12px;
  }
  
  .subnav-link {
    padding: 12px 24px;
    font-size: 1rem;
  }
}
@media (max-width: 992px) {
  .breadcrumb-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
}

/* 装饰Banner*/
.decorative-banner-section {
  width: 100%;
  margin: 30px 0;
}

.decorative-banner {
  height: 300px;
  width: 100vw; /* 视口宽度100% */
  max-width: 100%; /* 确保不超出屏幕 */
  overflow: hidden;
  position: relative;
  left: 0;
  right: 0;
  padding: 0;
  margin: 0;
}

.decorative-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-text {
  color: white;
  font-size: 2.2rem;
  font-weight: 600;
  text-align: center;
  max-width: 1200px;
  padding: 0 20px;
  line-height: 1.6;
}
@media (max-width: 768px) {
  .about-banner {
    height: 40vh;
  }
  
  .decorative-banner {
    height: 220px;
  }
  
  .banner-text {
    font-size: 1.6rem;
  }
}
@media (max-width: 576px) {
  .about-banner {
    height: 30vh;
    margin-top: 60px;
  }
  
  .decorative-banner {
    height: 180px;
  }
  
  .banner-text {
    font-size: 1.3rem;
  }
  .subnav-list {
    gap: 8px;
  }
  
  .subnav-link {
    padding: 8px 12px;
    font-size: 0.9rem;
  }
  .cases-carousel-section .case-img {
    height: 250px; /* 手机设备上适当调整图片高度 */
  }
}

/* 案例轮播图 - 调整间距和图片大小 */
.cases-carousel-section {
  padding: 80px 0;
  background-color: var(--gray-light);
}

.cases-carousel-section .cases-swiper-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 10px; 
  position: relative;
}

.cases-carousel-section .cases-swiper-container .cases-swiper {
  width: 100%;
  padding: 30px 0;
}

.cases-carousel-section .cases-swiper-container .case-slide {
  display: flex;
  justify-content: center;
  padding: 0;
}

.cases-carousel-section .cases-swiper-container .case-item {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  width: 100%;
  max-width: none; 
}

.cases-carousel-section .cases-swiper-container .case-img {
  height: 450px;
  overflow: hidden;
}

.cases-carousel-section .cases-swiper-container .case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.cases-carousel-section .cases-swiper-container .case-item:hover .case-img img {
  transform: scale(1.05);
}

.cases-carousel-section .cases-swiper-container .case-info {
  padding: 25px;
  text-align: center;
}

.cases-carousel-section .cases-swiper-container .case-info h3 {
  color: var(--primary-dark);
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.cases-carousel-section .cases-swiper-container .case-info p {
  color: #555;
  line-height: 1.6;
}
    .case-slide a {
      display: block;
      text-decoration: none;
      color: inherit;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border-radius: 8px;
      overflow: hidden;
    }
    
    .case-slide a:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .case-slide a:active {
      transform: translateY(-2px);
      box-shadow: 0 5px 10px rgba(0, 0, 0, 0.08);
    }

/* 案例轮播箭头 */
.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-prev,
.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-next {
  width: 50px;
  height: 50px;
  background-color: white;
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  color: var(--primary-color);
  top: 50%;
  transform: translateY(-50%);
  transition: all 0.3s ease;
}

.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-prev:hover,
.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-next:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-50%) scale(1.1);
}

/* 案例轮播点 */
.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-pagination {
  bottom: 0;
}

.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background-color: #ddd;
  opacity: 1;
  margin: 0 6px !important;
}

.cases-carousel-section .cases-swiper-container .cases-swiper .swiper-pagination-bullet-active {
  background-color: var(--primary-color);
}

.cases-carousel-section .swiper-button-next, .cases-carousel-section .swiper-button-prev {
    svg {
        height: 50%;
        width: 50%;
    }
}


@media (max-width: 992px) {
  
  .cases-carousel-section .cases-swiper-container .case-img {
    height: 300px; /* 平板设备上适当调整图片高度 */
  }
}

@media (max-width: 768px) {
  
  .cases-carousel-section .cases-swiper-container .cases-carousel-section {
    padding: 50px 0;
  }
  
  .cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-prev,
  .cases-carousel-section .cases-swiper-container .cases-swiper .swiper-button-next {
    width: 40px;
    height: 40px;
  }
}




/* 分页样式 */
.pagination {
  display: flex;
  justify-content: center;
  margin-top: 50px;
}

.pagination .page-item {
  margin: 0 5px;
}

.pagination .page-link {
  color: var(--text-dark);
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 8px 16px;
  transition: all 0.3s ease;
}

.pagination .page-link:hover {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-color);
}

.pagination .page-item.active .page-link {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination .page-item.disabled .page-link {
  color: #ccc;
  pointer-events: none;
}


/* 响应式下拉菜单调整 */
@media (max-width: 991px) {
  .navbar-nav .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    padding-left: 20px;
    background-color: transparent;
  }
  
  .navbar-nav .dropdown-item {
    padding: 8px 0;
  }
  
  .navbar-nav .dropdown-item:hover {
    padding-left: 5px;
    background-color: transparent;
  }
}
@media (max-width: 992px) {
  .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    padding: 15px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    transition: all 0.3s ease;
  }
  
  .navbar-collapse.show {
    transform: scaleY(1);
    opacity: 1;
  }
  
  .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .navbar-nav .nav-item {
    width: 100%;
  }
  

}

@media (max-width: 768px) {
  .footer-col {
    margin-bottom: 30px;
  }
  
  .logo-img {
    height: 36px;
  }

  .footer-logo {
    height: 50px;
  }
  
  .footer-logo-img {
    height: 50px;
  }
}

@media (max-width: 576px) {
  .btn-primary {
    padding: 8px 15px;
    font-size: 0.9rem;
  }
  
  .logo-img {
    height: 32px;
  }
}

    /* 公司案例版块 */
    .cases-section {
      padding: 80px 0;
      background-color: var(--gray-light);
    }
    
    .cases-section .cases-container {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    
    .cases-section .cases-container .case-item {
      background-color: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    
    .cases-section .cases-container .case-item:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    }
    
    .cases-section .cases-container .case-img {
      height: 200px;
      overflow: hidden;
    }
    
    .cases-section .cases-container .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    
    .cases-section .cases-container .case-item:hover .case-img img {
      transform: scale(1.08);
    }
    
    .cases-section .cases-container .case-content {
      padding: 25px;
    }
    
    .cases-section .cases-container .case-title {
      font-size: 1.2rem;
      font-weight: 600;
      margin-bottom: 15px;
    }
    
    .cases-section .cases-container .case-title a {
      color: var(--text-dark);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    
    .cases-section .cases-container .case-title a:hover {
      color: var(--primary-color);
    }
    
    .cases-section .cases-container .case-desc {
      color: #666;
      font-size: 0.95rem;
      line-height: 1.6;
      margin-bottom: 20px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    
    .cases-section .cases-container .case-more {
      display: inline-block;
      color: var(--primary-color);
      text-decoration: none;
      font-weight: 500;
      transition: all 0.3s ease;
    }
    
    .cases-section .cases-container .case-more:hover {
      color: var(--primary-dark);
      padding-left: 5px;
    }
	
    @media (max-width: 992px) {
      .cases-section .cases-container {
        grid-template-columns: repeat(2, 1fr);
    }
}
	
    @media (max-width: 768px) {
.cases-section {
        padding: 50px 0;
      }
}

    @media (max-width: 576px) {
      .cases-section .cases-container {
        grid-template-columns: 1fr;
      }
}