/*
 * 篷房/张拉膜结构公司网站 - 全局样式表
 * 基于 Bootstrap 5
 * 主色调：蓝色渐变 (#2a9eda - #2e3997)
 * 点缀色：橙色 (#f7931e)
 */

/* ========================================
   1. 颜色变量定义
   ======================================== */
:root {
  --primary-blue-light: #2a9eda;
  --primary-blue-dark: #2e3997;
  --accent-orange: #f7931e;
  --text-dark: #333333;
  --text-light: #666666;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --gradient-primary: linear-gradient(135deg, #2a9eda 0%, #2e3997 100%);
}

/* ========================================
   2. 全局样式
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 全局容器最大宽度 1400px */
.container-custom {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 15px;
  width: 100%;
}

/* 全屏容器（Header、Banner、Footer 背景） */
.full-width-bg {
  width: 100%;
  position: relative;
}

/* ========================================
   3. 导航栏样式
   ======================================== */
.main-header {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}
.mega-menu-item{ text-align: center;}
.mega-menu-item span{ display: block;}
.main-header.scrolled {
  background: rgba(255, 255, 255);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 0;
}

.logo-img {
  width: 360px;
}

/* Navbar布局修复 - 确保logo、菜单、工具栏在一行 */
.navbar .container-custom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
}

.navbar-brand {
  flex-shrink: 0;
  order: 1;
}

.navbar-toggler {
  order: 3;
  margin-left: auto;
}

.navbar-collapse {
  flex-grow: 1;
  order: 2;
  justify-content: center;
}

.navbar-nav {
  margin: 0;
  gap: 6px;
}

.navbar-nav .nav-link {
  margin: 0;
  padding:0;
  transition: all 0.3s ease;
}
.nav-item a{ line-height: 80px; display: block;}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-blue-light);
}

/* 导航工具栏：搜索 + 语言选择器 */
.navbar-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  order: 4;
  margin-left: auto;
}

/* 搜索框样式 */
.navbar-search {
  display: flex;
  align-items: center;
  background: rgba(42, 158, 218, 0.08);
  border-radius: 999px;
  padding: 4px 6px 4px 16px;
  transition: all 0.3s ease;
}

.navbar-search:hover {
  background: rgba(42, 158, 218, 0.12);
}

.navbar-search input {
  border: none;
  background: transparent;
  outline: none;
  padding: 4px 8px;
  width: 160px;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.navbar-search input::placeholder {
  color: rgba(0, 0, 0, 0.4);
}

.navbar-search button {
  border: none;
  background: var(--primary-blue-light);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.navbar-search button:hover {
  background: var(--primary-blue-dark);
  transform: scale(1.05);
}

/* 语言选择器样式 */
.language-selector {
  position: relative;
}

.language-selector .dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.language-selector .dropdown-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.language-selector .dropdown-toggle .flag-icon {
  font-size: 1.1rem;
}

.language-selector .dropdown-toggle .lang-text {
  font-size: 0.9rem;
}

/* 滚动后语言选择器变色 */
.main-header.scrolled2 .language-selector .dropdown-toggle,
.main-header.scrolled .language-selector .dropdown-toggle {
  color: var(--text-dark);
  border-color: rgba(42, 158, 218, 0.3);
}

.main-header.scrolled2 .language-selector .dropdown-toggle:hover,
.main-header.scrolled .language-selector .dropdown-toggle:hover {
  background: rgba(42, 158, 218, 0.08);
  border-color: var(--primary-blue-light);
  color: var(--primary-blue-light);
}

.language-selector .dropdown-toggle::after {
  border: none;
  content: '\F282';
  font-family: 'bootstrap-icons';
  font-size: 0.8rem;
  margin-left: 2px;
}

.language-selector .dropdown-menu {
  border: none;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  padding: 8px;
  min-width: 180px;
  margin-top: 8px;
}

.language-selector .dropdown-item {
  padding: 10px 14px;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.language-selector .dropdown-item .flag-icon {
  font-size: 1.2rem;
}

.language-selector .dropdown-item:hover {
  background: rgba(42, 158, 218, 0.08);
  color: var(--primary-blue-light);
}

.language-selector .dropdown-item.active {
  background: var(--gradient-primary);
  color: white;
}

/* 联系电话样式 */
.header-phone {
  margin-left: 20px;
}

.header-phone a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.header-phone a i {
  font-size: 1.1rem;
}

.header-phone a:hover {
  color: var(--accent-orange);
}

/* 滚动后电话变色 */
.main-header.scrolled2 .header-phone a ,
.main-header.scrolled .header-phone a {
  color: var(--primary-blue);
}

.main-header.scrolled2 .header-phone a:hover ,
.main-header.scrolled .header-phone a:hover {
  color: var(--accent-orange);
}
.navbar { padding: 0; margin: 0;}
.navbar-nav .nav-link {
  color: var(--text-dark);
  font-weight: 500;
  padding: 0;
  margin: 0 0.2rem;
  transition: all 0.3s ease;
  position: relative;
}


.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

/* 右侧搜索框 */
.navbar-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  order: 4;
  flex-shrink: 0;
}

.navbar-search {
  position: relative;
  width: 240px;
}

.navbar-search input {
  width: 100%;
  height: 38px;
  padding: 0.45rem 2.4rem 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  outline: none;
  transition: all 0.25s ease;
  background: rgba(255, 255, 255, 0.85);
}

.navbar-search input:focus {
  border-color: rgba(42, 158, 218, 0.6);
  box-shadow: 0 0 0 0.2rem rgba(42, 158, 218, 0.15);
  background: rgba(255, 255, 255, 0.95);
}

.navbar-search button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  padding: 6px;
  color: var(--primary-blue-dark);
}

.navbar-search button:hover {
  color: var(--primary-blue-light);
}

/* 首页：让导航悬浮在视频上（无白底） */
.home-header {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  width: 100%;
  background: transparent;
  box-shadow: none;
}

.home-header .navbar {
  background: rgba(10, 15, 25, 0.15);
  backdrop-filter: blur(10px);
}

.home-header .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.92);
}

.home-header .navbar-nav .nav-link:hover,
.home-header .navbar-nav .nav-link.active {
  color: #fff;
}

.home-header .navbar-brand {
  -webkit-text-fill-color: initial;
}

.home-header.scrolled {
  position: fixed;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.home-header.scrolled .navbar {
  background: transparent;
}

.home-header.scrolled .navbar-nav .nav-link {
  color: var(--text-dark);
}

.home-header.scrolled .navbar-nav .nav-link:hover,
.home-header.scrolled .navbar-nav .nav-link.active {
  color: var(--primary-blue-light);
}

.home-header .navbar-search input {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.home-header .navbar-search input::placeholder {
  color: rgba(255, 255, 255, 0.75);
}

.home-header .navbar-search input:focus {
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.12);
}

.home-header .navbar-search button {
  color: rgba(255, 255, 255, 0.9);
}

.home-header.scrolled .navbar-search input {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.12);
  color: var(--text-dark);
}

.home-header.scrolled .navbar-search input::placeholder {
  color: rgba(0, 0, 0, 0.5);
}

.home-header.scrolled .navbar-search button {
  color: var(--primary-blue-dark);
}

/* ========================================
   4. Hero Banner 样式
   ======================================== */
.hero-banner {
  position: relative;
  height: 680px;
  overflow: hidden;
  background: linear-gradient(135deg, #2a9eda 0%, #2e3997 100%);
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 680px;
  object-fit: cover;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-align: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease;
}

.hero-content p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  max-width: 600px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1.2s ease;
}

.btn-hero {
  padding: 0.8rem 2.5rem;
  font-size: 1.1rem;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  transition: all 0.3s ease;
  animation: fadeInUp 1.4s ease;
}

.btn-primary-custom {
  background: var(--accent-orange);
  border: 2px solid var(--accent-orange);
  color: var(--white);
}

.btn-primary-custom:hover {
  background: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  color: var(--white);
}
.about-index{ padding-top: 0!important;} 
.readcontent p {
    font-size: 1.25rem;
    font-weight: 300;
}

.btn-outline-custom {
  background: transparent;
  border: 2px solid var(--white);
  color: var(--white);
}

.btn-outline-custom:hover {
  background: var(--white);
  color: var(--primary-blue-dark);
  transform: translateY(-3px);
}

/* ========================================
   5. 通用区块样式
   ======================================== */
.section-padding {
  padding: 80px 0;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 50px;
  gap: 15px;
}

.section-title-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.section-title-left a{ color: #333333; text-decoration: none;}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-title p {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 500px;
  margin: 0;
}

.section-title .more-link {
  color: var(--primary-blue-light);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.section-title .more-link:hover {
  color: var(--primary-blue-dark);
}

.section-title .more-link i {
  transition: transform 0.3s ease;
}

.section-title .more-link:hover i {
  transform: translateX(5px);
}

/* ========================================
   6. 产品分类卡片
   ======================================== */
.product-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  margin-bottom: 30px;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.product-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: all 0.3s ease;
}

.product-card:hover img {
  transform: scale(1.1);
}

.product-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(to top, rgba(46, 57, 151, 0.95), transparent);
  color: var(--white);
  transition: all 0.3s ease;
}
.zzzz_item{ padding-bottom: 30px;}
.product-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-card p {
  font-size: 0.9rem;
  opacity: 0.9;
  margin: 0;
}

/* ========================================
   7. 特点/优势图标卡片
   ======================================== */
.feature-box {
  text-align: center;
  padding: 40px 20px;
  border-radius: 12px;
  transition: all 0.3s ease;
  background: var(--white);
}

.feature-box:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white);
  transition: all 0.3s ease;
}

.feature-box:hover .feature-icon {
  transform: rotateY(360deg);
}

.feature-box h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-box p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ========================================
   8. 案例展示网格
   ======================================== */
.case-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  margin-bottom: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* ========================================
   8.5. 合作伙伴滚动
   ======================================== */
.partners-slider-wrapper {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
}

.partners-slider-wrapper::before,
.partners-slider-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.partners-slider-wrapper::before {
  left: 0;
  background: linear-gradient(to right, rgba(248, 249, 250, 1), rgba(248, 249, 250, 0));
}

.partners-slider-wrapper::after {
  right: 0;
  background: linear-gradient(to left, rgba(248, 249, 250, 1), rgba(248, 249, 250, 0));
}

.partners-slider {
  overflow: hidden;
}

.partners-track {
  display: flex;
  animation: scroll-partners 30s linear infinite;
  width: fit-content;
}

.partner-item {
  flex: 0 0 auto;
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-item img {
  height: 80px;
  width: auto;
  max-width: 200px;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.partner-item:hover img {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.05);
}

@keyframes scroll-partners {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.partners-track:hover {
  animation-play-state: paused;
}

.case-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: all 0.5s ease;
}

.case-item:hover img {
  transform: scale(1.15);
}

.case-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(42, 158, 218, 0.8), rgba(46, 57, 151, 0.9));
  opacity: 0;
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  padding: 20px;
  text-align: center;
}

.case-item:hover .case-overlay {
  opacity: 1;
}

.case-overlay h4 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.case-overlay p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* ========================================
   9. Footer 样式
   ======================================== */
.main-footer {
  background: #1a1a1a;
  color: rgba(255, 255, 255, 0.8);
  padding-top: 60px;
}

.footer-widget h5 {
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 10px;
}

.footer-widget h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent-orange);
}

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

.footer-widget ul li {
  margin-bottom: 10px;
}

.footer-widget ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.footer-widget ul li a:hover {
  color: var(--accent-orange);
  padding-left: 5px;
}

.footer-widget p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  line-height: 1.8;
}

.social-links a {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  text-align: center;
  line-height: 40px;
  color: var(--white);
  margin-right: 10px;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--accent-orange);
  
}

.footer-bottom {
  background: #0d0d0d;
  padding: 20px 0;
  margin-top: 40px;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* ========================================
   10. 动画效果
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease;
}

/* 滚动动画 */
.scroll-animate {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

.scroll-animate.animated {
  opacity: 1;
  transform: translateY(0);
}

/* 为产品卡片添加延迟动画 */
.product-card.scroll-animate:nth-child(1) { transition-delay: 0.1s; }
.product-card.scroll-animate:nth-child(2) { transition-delay: 0.2s; }
.product-card.scroll-animate:nth-child(3) { transition-delay: 0.3s; }
.product-card.scroll-animate:nth-child(4) { transition-delay: 0.4s; }
.product-card.scroll-animate:nth-child(5) { transition-delay: 0.5s; }
.product-card.scroll-animate:nth-child(6) { transition-delay: 0.6s; }

.feature-box.scroll-animate:nth-child(1) { transition-delay: 0.1s; }
.feature-box.scroll-animate:nth-child(2) { transition-delay: 0.2s; }
.feature-box.scroll-animate:nth-child(3) { transition-delay: 0.3s; }
.feature-box.scroll-animate:nth-child(4) { transition-delay: 0.4s; }
.feature-box.scroll-animate:nth-child(5) { transition-delay: 0.5s; }
.feature-box.scroll-animate:nth-child(6) { transition-delay: 0.6s; }
.feature-box.scroll-animate:nth-child(7) { transition-delay: 0.7s; }
.feature-box.scroll-animate:nth-child(8) { transition-delay: 0.8s; }

.case-item.scroll-animate:nth-child(1) { transition-delay: 0.1s; }
.case-item.scroll-animate:nth-child(2) { transition-delay: 0.2s; }
.case-item.scroll-animate:nth-child(3) { transition-delay: 0.3s; }
.case-item.scroll-animate:nth-child(4) { transition-delay: 0.4s; }
.case-item.scroll-animate:nth-child(5) { transition-delay: 0.5s; }
.case-item.scroll-animate:nth-child(6) { transition-delay: 0.6s; }

/* ========================================
   11. 响应式设计
   ======================================== */
/* 平板设备 */
@media (max-width: 992px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: 1.1rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .section-padding {
    padding: 60px 0;
  }
  
  /* 平板端语言选择器布局 */
  .navbar .container-custom {
    flex-wrap: wrap;
  }
  
  .language-selector {
    order: 3;
    margin-top: 10px;
  }
  
  /* section-title 响应式 */
  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .section-title-left {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .section-title p {
    max-width: 100%;
  }
}

/* 手机设备 */
@media (max-width: 768px) {
  .hero-banner {
    height: 400px;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .btn-hero {
    padding: 0.6rem 1.8rem;
    font-size: 1rem;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
  
  .section-padding {
    padding: 40px 0;
  }
  
  .product-card img,
  .case-item img {
    height: 220px;
  }
  
  .feature-box {
    padding: 30px 15px;
  }
  
  /* 移动端隐藏Mega Menu */
  .mega-menu {
    display: none;
  }
  
  /* 移动端布局调整 */
  .navbar .container-custom {
    flex-wrap: wrap;
  }
  
  .navbar-collapse {
    width: 100%;
    margin-top: 10px;
  }
  
  .language-selector {
    width: 100%;
    text-align: center;
    margin-top: 10px;
  }
}

/* 小型手机设备 */
@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 1.5rem;
  }
  
  .navbar-brand {
    font-size: 1.2rem;
  }
  
  .section-title h2 {
    font-size: 1.5rem;
  }
}

/* ========================================
   12. 工具类
   ======================================== */
.bg-gradient-primary {
  background: var(--gradient-primary);
}

.text-primary-blue {
  color: var(--primary-blue-light);
}

.text-accent-orange {
  color: var(--accent-orange);
}

.bg-light-custom {
  background: var(--bg-light);
}

/* 通用悬停效果 */
a {
  transition: all 0.3s ease;
}



.btn {
  transition: all 0.3s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(0);
}

/* ========================================
   13. 页面标题横幅 Page Header (见文件后半部分)
   ======================================== */

/* ========================================
   14. 产品筛选按钮
   ======================================== */
.product-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  align-items: center;
}

.filter-btn {
  padding: 10px 25px;
  border:0;
  background: var(--white);
  color: var(--primary-blue-light);
  border-radius: 50px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}
a.filter-btn-link .filter-btn {
  color: var(--primary-blue-light);text-decoration: none;}
.filter-btn a:hover{ color: #fff;}

a.filter-btn-link .filter-btn.active { color: #fff;}

a.filter-btn-link .filter-btn:hover,
a.filter-btn-link .filter-btn.active {
  background: var(--gradient-primary);
  color: var(--white);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(42, 158, 218, 0.3);
}

/* ========================================
   15. 产品卡片增强样式
   ======================================== */
.product-card-content {
  padding: 20px;
  background: var(--white);
}

.product-category a {
  display: inline-block;
  padding: 5px 15px;
  background: var(--gradient-primary);
  color: var(--white);
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 20px;
  margin-bottom: 10px;
}

.product-card-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}
.product-card-content h3 a{
  color: var(--text-dark); text-decoration: none; }
.product-card-content p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* ========================================
   16. CTA 区块样式
   ======================================== */
.cta-section {
  padding: 80px 0;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

/* ========================================
   17. 详情页样式
   ======================================== */
.detail-hero {
  position: relative;
  height: 500px;
  overflow: hidden;
}

.detail-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 40px 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.detail-hero-overlay h1 {
  color: var(--white);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.detail-hero-overlay .badge {
  font-size: 0.9rem;
  padding: 8px 20px;
}

.detail-content {
  padding: 60px 0;
}

.detail-sidebar {
  background: var(--bg-light);
  padding: 30px;
  border-radius: 12px;
  position: sticky;
  top: 100px;
}

.info-item {
  display: flex;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.info-item:last-child {
  border-bottom: none;
}

.info-item i {
  font-size: 1.5rem;
  color: var(--primary-blue-light);
  margin-right: 15px;
  width: 30px;
}

.info-item strong {
  display: block;
  color: var(--text-dark);
  margin-bottom: 5px;
}

.info-item span {
  color: var(--text-light);
  font-size: 0.95rem;
}

.feature-list {
  list-style: disc;
  padding: 0;
  padding-left: 20px;
}

.feature-list li {
  padding: 12px 0;
  color: var(--text-dark);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.spec-table th,
.spec-table td {
  padding: 15px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  text-align: left;
}

.spec-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-dark);
}

.spec-table td {
  color: var(--text-light);
}

/* ========================================
   18. 关于我们页面样式
   ======================================== */
.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-blue-light);
  transform: translateX(-50%);
}

.timeline-item {
  margin-bottom: 50px;
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: 50%;
  padding-right: 40px;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 50%;
  padding-left: 40px;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--primary-blue-light);
  border: 4px solid var(--white);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(42, 158, 218, 0.2);
}

.timeline-year {
  display: inline-block;
  padding: 8px 20px;
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: 20px;
  font-weight: 600;
  margin-bottom: 15px;
}

.timeline-content h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.timeline-content p {
  color: var(--text-light);
  line-height: 1.8;
}

.team-member {
  text-align: center;
  padding: 30px;
  background: var(--white);
  border-radius: 12px;
  transition: all 0.3s ease;
  margin-bottom: 30px;
}

.team-member:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}

.team-member-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin: 0 auto 20px;
  overflow: hidden;
  border: 5px solid var(--bg-light);
}

.team-member-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-member h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-dark);
}

.team-member .position {
  color: var(--primary-blue-light);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.team-member p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ========================================
   19. 联系我们页面样式
   ======================================== */
.contact-info-box {
  text-align: center;
  padding: 40px 30px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  margin-bottom: 30px;
  transition: all 0.3s ease;
}

.contact-info-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.contact-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
}

.contact-info-box h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.contact-info-box p {
  color: var(--text-light);
  margin: 0;
}

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.form-control,
.form-select {
  padding: 12px 20px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-blue-light);
  box-shadow: 0 0 0 0.2rem rgba(42, 158, 218, 0.15);
}

.form-label {
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.map-container {
  height: 450px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ========================================
   20.x 解决方案卡片图片：高度跟外框一致
   ======================================== */
.solution-card .row.g-0 {
  height: 100%;
}

.solution-card .col-md-5,
.solution-card .col-md-7 {
  display: flex;
}

.solution-card-img {
  height: 100%;
  flex: 1 1 auto;
}

/* ========================================
   按钮：避免“白底+白字”不可读
   ======================================== */
.btn-primary-custom:hover {
  background: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  color: var(--white);
}

/* CTA 里使用 btn-light 的地方，悬停保持可读（不出现白底白字） */
.cta-section .btn.btn-light:hover {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: var(--white);
}

.cta-section .btn.btn-light:hover i {
  color: var(--white);
}

/* ========================================
   21. 响应式补充
   ======================================== */
@media (max-width: 992px) {
  .page-title {
    font-size: 1.5rem;
  }
  
  .page-header .row {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 10px;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
    margin-right: 0;
    padding-left: 30px;
    padding-right: 0;
    text-align: left;
  }
  
  .timeline-dot {
    left: 30px;
  }
  
  .detail-sidebar {
    margin-top: 40px;
  }
  
  .product-category-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .page-title {
    font-size: 1.3rem;
  }
  
  .page-header {
    padding: 15px 0;
  }
  
  .product-filter {
    gap: 10px;
  }
  
  .filter-btn {
    padding: 8px 18px;
    font-size: 0.9rem;
  }
  
  .detail-hero {
    height: 350px;
  }
  
  .detail-hero-overlay h1 {
    font-size: 1.8rem;
  }
  
  .contact-form {
    padding: 30px 20px;
  }
  
  .map-container {
    height: 300px;
  }
}

/* 导航二级菜单样式 */
.navbar-nav .dropdown-menu {
  border: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);

  padding: 12px;
  min-width: 240px;
  margin-top: 0;
  animation: fadeInDown 0.3s ease;
}

/* 产品中心大菜单（横向排布） */
.mega-menu .mega-dropdown {
  min-width: 800px;
  padding: 20px;
  border-radius: 0;
  -webkit-border-bottom-right-radius: 12px;
-webkit-border-bottom-left-radius: 12px;
-moz-border-radius-bottomright: 12px;
-moz-border-radius-bottomleft: 12px;
border-bottom-right-radius: 12px;
border-bottom-left-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.mega-menu-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.mega-menu-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 15px;
  border-radius: 12px;
  background: rgba(42, 158, 218, 0.03);
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--text-dark);
  border: 2px solid transparent;
}

.mega-menu-item:hover {
  background: rgba(42, 158, 218, 0.1);
  border-color: var(--primary-blue-light);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(42, 158, 218, 0.2);
}

.mega-menu-item i {
  font-size: 2.5rem;
  color: var(--primary-blue-light);
  margin-bottom: 10px;
  transition: all 0.3s ease;
}

.mega-menu-item:hover i {
  transform: scale(1.1);
  color: var(--primary-blue-dark);
}

.mega-menu-item span {
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.4;
}

/* 移动端大菜单样式 */
@media (max-width: 991px) {
  .mega-menu .mega-dropdown {
    min-width: 100%;
    padding: 15px;
  }
  
  .mega-menu-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .mega-menu-item {
    padding: 15px 10px;
  }
  
  .mega-menu-item i {
    font-size: 2rem;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 关于我们页面专属样式 */
.about-nav .nav-link {
  color: var(--text-dark);
  font-weight: 500;
  border-radius: 50px;
  padding: 10px 20px;
  transition: all 0.3s ease;
}

.about-nav .nav-link:hover,
.about-nav .nav-link.active {
  background: var(--gradient-primary);
  color: white;
}

.stat-card {
  background: white;
  border-radius: 16px;
  padding: 30px 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.stat-card .stat-icon {
  font-size: 2.5rem;
}

.stat-card h3 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.culture-card {
  transition: all 0.3s ease;
  background: white;
}

.culture-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.qualification-card,
.honor-card {
  transition: all 0.3s ease;
}

.qualification-card:hover,
.honor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.award-project-card {
  overflow: hidden;
}

.award-project-card img {
  transition: transform 0.5s ease;
}

.award-project-card:hover img {
  transform: scale(1.1);
}

.award-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 30px 20px 20px;
}

/* 页面副标题样式 */
.page-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  margin-top: 10px;
  margin-bottom: 0;
}

/* ========================================
   新闻页面样式 - 杂志风格
   ======================================== */
.news-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.news-image {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-image img {
  transform: scale(1.1);
}

/* 新闻页面背景 - 浅色杂志风格 */
.news-section {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 50%, #f5f6f7 100%);
  position: relative;
}

.news-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%233498db' fill-opacity='0.02'%3E%3Cpath fill-rule='evenodd' d='M0 38.59l2.83-2.83 1.41 1.41L1.41 40H0v-1.41zM0 1.4l2.83 2.83 1.41-1.41L1.41 0H0v1.41zM38.59 40l-2.83-2.83 1.41-1.41L40 38.59V40h-1.41zM40 1.41l-2.83 2.83-1.41-1.41L38.59 0H40v1.41zM20 18.6l2.83-2.83 1.41 1.41L21.41 20l2.83 2.83-1.41 1.41L20 21.41l-2.83 2.83-1.41-1.41L18.59 20l-2.83-2.83 1.41-1.41L20 18.59z'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

/* 新闻筛选按钮组 - 浅色主题 */
.news-filter-group {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  background: white;
  padding: 15px 25px;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.news-filter-btn {
  padding: 10px 24px;
  border: 2px solid #e0e0e0;
  background: white;
  color: #555;
  border-radius: 25px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.news-filter-btn:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  background: rgba(42, 158, 218, 0.05);
}

.news-filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 15px rgba(42, 158, 218, 0.3);
}

.news-category {
  position: absolute;
  top: 15px;
  left: 15px;
  background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.news-content {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.news-meta {
  display: flex;
  gap: 20px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: #888;
}

.news-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-meta i {
  color: var(--accent-orange);
}

.news-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.5;
}

.news-content h3 a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.3s ease;
}

.news-content h3 a:hover {
  color: var(--primary-blue-light);
}

.news-content p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-content .btn {
  align-self: flex-start;
  border-radius: 25px;
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* 新闻分类标签颜色 - 基于 data-type 属性 */
.news-category[data-type="company"] {
  background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

.news-category[data-type="project"] {
  background: linear-gradient(135deg, #27ae60 0%, #1e8449 100%);
}

.news-category[data-type="industry"] {
  background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
}

.news-category[data-type="technology"] {
  background: linear-gradient(135deg, #f39c12 0%, #d68910 100%);
}

/* ========================================
   新闻详情页样式
   ======================================== */
.news-detail-card {
  background: white;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.news-detail-header {
  margin-bottom: 30px;
}

.news-detail-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 15px 0;
  line-height: 1.4;
}

.news-detail-header .news-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.news-detail-image {
  margin-bottom: 30px;
}

.news-detail-image img {
  width: 100%;
  border-radius: 12px;
}

.news-detail-content {
  line-height: 1.8;
  color: #555;
}

.news-detail-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 30px 0 15px;
}

.news-detail-content p {
  margin-bottom: 15px;
}

.news-detail-content .lead {
  font-size: 1.1rem;
  color: #444;
  border-left: 4px solid var(--primary-blue);
  padding-left: 20px;
  margin-bottom: 25px;
}

.news-detail-content .blockquote {
  background: #f8f9fa;
  border-left: 4px solid var(--primary-blue);
  padding: 20px 25px;
  margin: 25px 0;
  border-radius: 0 8px 8px 0;
}

.news-detail-content .blockquote p {
  font-style: italic;
  color: #555;
  margin-bottom: 10px;
}

.news-detail-content .blockquote-footer {
  font-size: 0.9rem;
  color: #888;
}

.news-detail-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid #eee;
  flex-wrap: wrap;
  gap: 15px;
}

.news-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.news-tags .tag-label {
  color: #888;
}

.news-tags .tag {
  background: #f0f0f0;
  color: #555;
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.news-tags .tag:hover {
  background: var(--primary-blue);
  color: white;
}

.news-share {
  display: flex;
  align-items: center;
  gap: 10px;
}

.news-share .share-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f0f0;
  color: #555;
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s ease;
}

.news-share .share-btn:hover {
  background: var(--primary-blue);
  color: white;
}

/* 新闻导航 */
.news-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 30px;
  gap: 20px;
}

.news-navigation a {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: white;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  flex: 1;
}

.news-navigation a:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  
}

.news-navigation a i {
  font-size: 1.5rem;
  color: var(--primary-blue);
}

.news-navigation a span {
  font-size: 0.85rem;
  color: #888;
}

.news-navigation a p {
  margin: 5px 0 0;
  color: var(--text-dark);
  font-weight: 500;
}

.news-navigation .nav-next {
  text-align: right;
  justify-content: flex-end;
}

/* 侧边栏样式 */
.sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: white;
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--primary-blue);
}

.hot-news-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.hot-news-item {
  display: flex;
  gap: 15px;
  text-decoration: none;
  padding: 10px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.hot-news-item:hover {
  background: #f8f9fa;
}

.hot-news-item img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 6px;
}

.hot-news-info h6 {
  font-size: 0.9rem;
  color: var(--text-dark);
  margin: 0 0 5px;
  line-height: 1.4;
}

.hot-news-info span {
  font-size: 0.8rem;
  color: #888;
}

.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-list li {
  border-bottom: 1px solid #eee;
}

.category-list li:last-child {
  border-bottom: none;
}

.category-list a {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  color: var(--text-dark);
  text-decoration: none;
  transition: all 0.3s ease;
}

.category-list a:hover {
  color: var(--primary-blue);
  padding-left: 10px;
}

.category-list a span {
  color: #888;
  font-size: 0.9rem;
}

/* ========================================
   视频页面样式 - 浅色风格（统一）
   ======================================== */
.video-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  height: 100%;
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.video-thumbnail {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .video-thumbnail img {
  transform: scale(1.1);
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.95);
  transition: all 0.3s ease;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.video-card:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.15);
  color: var(--accent-orange);
}

.video-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
}

.video-content {
  padding: 20px;
}

.video-category {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue-dark) 100%);
  color: white;
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.video-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.video-content h3 a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.3s ease;
}

.video-content h3 a:hover {
  color: var(--primary-blue);
}

.video-meta {
  display: flex;
  gap: 15px;
  font-size: 0.8rem;
  color: var(--text-light);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.video-meta i {
  color: var(--primary-blue-light);
}

/* ========================================
   视频详情页样式
   ======================================== */
.video-player {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.video-player video {
  display: block;
}

.video-info {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.video-info h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
}

.video-description {
  border-radius: 10px;
}

.related-video {
  background: white;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.related-video:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transform: translateX(5px);
}

.related-video-thumb {
  flex-shrink: 0;
}

.related-video-thumb img {
  width: 120px;
  height: 80px;
  object-fit: cover;
}

.related-video-thumb .duration {
  position: absolute;
  bottom: 5px;
  right: 5px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
}

.related-video-info h6 {
  font-size: 0.95rem;
  color: var(--text-dark);
  margin: 0 0 5px;
  line-height: 1.4;
}

.related-video-info small {
  color: #888;
}

/* ========================================
   客户见证页面样式
   ======================================== */
.testimonial-image-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
  transition: all 0.4s ease;
}

.testimonial-image-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
}

.testimonial-image-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.testimonial-image-card:hover img {
  transform: scale(1.08);
}

.testimonial-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.4) 50%, transparent 100%);
  padding: 60px 20px 20px;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.testimonial-image-card:hover .testimonial-overlay {
  opacity: 1;
}

.testimonial-info h5 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.testimonial-info p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  margin: 0;
}

.testimonial-info .small {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  line-height: 1.5;
}

.testimonial-info .stars {
  color: #ffc107;
}

/* 客户文字评价卡片 */
.testimonial-text-card {
  background: white;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.08);
  position: relative;
  transition: all 0.3s ease;
  height: 100%;
}

.testimonial-text-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.testimonial-text-card .quote-icon {
  position: absolute;
  top: 20px;
  right: 25px;
  font-size: 3rem;
  color: rgba(42, 158, 218, 0.15);
}

.testimonial-text-card .quote-icon i {
  transform: rotate(180deg);
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  border-top: 1px solid #eee;
  padding-top: 15px;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.2rem;
  margin-right: 15px;
}

.author-info h6 {
  margin: 0;
  font-weight: 600;
  color: var(--text-dark);
}

.author-info span {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* 客户满意度统计卡片 */
.testimonials-page .stat-card {
  background: white;
  border-radius: 16px;
  padding: 30px 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.testimonials-page .stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.testimonials-page .stat-icon {
  font-size: 2.5rem;
}

.testimonials-page .stat-card h3 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

/* ========================================
   解决方案页面样式
   ======================================== */
.solution-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: 40px;
  transition: all 0.4s ease;
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.15);
}

.solution-card-img {
  height: 100%;
  min-height: 350px;
  overflow: hidden;
}

.solution-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.solution-card:hover .solution-card-img img {
  transform: scale(1.05);
}

.solution-card-body {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}

.solution-tag {
  display: inline-block;
  background: var(--gradient-primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 15px;
  align-self: flex-start;
}

.solution-card-body h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.solution-card-body p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.8;
}

.solution-features {
  list-style: none;
  padding: 0;
  margin: 0 0 25px 0;
}

.solution-features li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 10px;
  color: var(--text-light);
  font-size: 0.95rem;
}

.solution-features li::before {
  content: '\F26A';
  font-family: 'bootstrap-icons';
  position: absolute;
  left: 0;
  color: var(--primary-blue-light);
}

/* ========================================
   页面标题横幅样式完善
   ======================================== */
.page-header {
  position: relative;
  background: var(--gradient-primary);
  padding:20px 0;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.page-header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(42, 158, 218, 0.1) 0%, rgba(46, 57, 151, 0.1) 100%);
}

.page-title {
  color: white;
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

.page-header .breadcrumb-item {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.page-header .breadcrumb-item a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-header .breadcrumb-item a:hover {
  color: white;
}

.page-header .breadcrumb-item.active {
  color: rgba(255, 255, 255, 0.7);
}

.page-header .breadcrumb-item + .breadcrumb-item::before {
  color: rgba(255, 255, 255, 0.5);
  content: '/';
}

.page-header .container-custom {
  position: relative;
  z-index: 2;
}

.page-header .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ========================================
   分页样式美化
   ======================================== */
.pagination {
  gap: 8px;
}

.pagination .page-link {
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  color: var(--text-dark);
  font-weight: 500;
  transition: all 0.3s ease;
  background: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.pagination .page-link:hover {
  background: var(--primary-blue-light);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(42, 158, 218, 0.3);
}

.pagination .page-item.active .page-link {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(42, 158, 218, 0.4);
}

.pagination .page-item.disabled .page-link {
  background: #f5f5f5;
  color: #aaa;
}

/* ========================================
   特性盒子/功能卡片样式
   ======================================== */
.feature-box {
  background: white;
  border-radius: 16px;
  padding: 35px 25px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  height: 100%;
}

.feature-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
  color: white;
  transition: transform 0.3s ease;
}

.feature-box:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-box h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-box p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.6;
}

/* ========================================
   时间轴样式
   ======================================== */
.timeline-container {
  position: relative;
  padding: 20px 0;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: calc(30% + 30px);
  position: relative;
  margin-bottom: 50px;
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: calc(30% + 30px);
}

.timeline-year {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  font-size: 16px;
  height: 120px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px rgba(42, 158, 218, 0.4);
  z-index: 1;
}

.timeline-content {
  background: white;
  padding: 25px 30px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  max-width: 400px;
}

.timeline-content h4 {
  color: var(--primary-blue-light);
  margin-bottom: 10px;
  font-weight: 600;
}

.timeline-content p {
  color: var(--text-light);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .timeline-container::before {
    left: 30px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-left: 80px;
    padding-right: 0;
  }

  .timeline-year {
    left: 30px;
    width: 50px;
    height: 50px;
    font-size: 0.8rem;
  }

  .timeline-content {
    max-width: 100%;
  }
}

/* ========================================
   CTA 区域样式
   ======================================== */
.cta-section {
  background: var(--gradient-primary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

/* ========================================
   背景色辅助类
   ======================================== */
.bg-light-custom {
  background-color: #f8fafc;
}

/* ========================================
   响应式调整
   ======================================== */
@media (max-width: 991px) {
  .page-title {
    font-size: 2rem;
  }

  .solution-card-body {
    padding: 30px;
  }

  .solution-card-img {
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .page-header {
    padding: 20px 0;
  }

  .page-title {
    font-size: 1.8rem;
  }

  .news-image,
  .video-thumbnail {
    height: 180px;
  }

  .testimonial-image-card img {
    height: 220px;
  }
}

/* ========================================
   22. 产品分类浮动导航
   ======================================== */
.product-category-nav {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.15);
  padding: 20px 15px;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.product-category-nav.show {
  opacity: 1;
  visibility: visible;
}

.product-category-nav h5 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bg-light);
}

.product-category-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-category-nav li {
  margin-bottom: 10px;
}

.product-category-nav a {
  display: block;
  padding: 8px 15px;
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.product-category-nav a:hover,
.product-category-nav a.active {
  background: var(--gradient-primary);
  color: var(--white);
  transform: translateX(5px);
}