/* 基础重置 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif; color: #222; line-height: 1.6; opacity: 0; transition: opacity 0.5s ease-in-out; }
body.loaded { opacity: 1; }
img { max-width: 100%; display: block; }
a { color: #0168b7; text-decoration: none; transition: all 0.3s ease; }
a:hover { color: #0056b3; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* videodiv轮播图 */
.videodiv {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.video-slider {
  position: relative;
  width: 100%;
}

.video-slider-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.video-slide {
  width: 100%;
  flex-shrink: 0;
  text-align: center;
  position: relative;
  opacity: 0;
  visibility: hidden;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  transition: opacity 0.5s ease;
}

.video-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.video-slide h2 {
  color: #fff;
  font-size: 2.2rem;
  margin-bottom: 15px;
  position: relative;
  z-index: 2;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.video-slide h4 {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
  font-weight: 400;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.slide-video,
.slide-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* 新增的轮播图样式 */
.video-slide-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.video-slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-slide-item.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.video-slide-item img {
  max-width: 100%;
  max-height: 100%;
  display: block;
  margin: 0 auto;
  transition: transform 0.5s ease;
}

.video-slide-item:hover img {
  transform: scale(1.02);
}

/* 轮播控制按钮样式 */
.video-slider-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
  pointer-events: none;
}

.video-prev,
.video-next {
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.3s ease;
  pointer-events: auto;
}

.video-prev:hover,
.video-next:hover {
  background: rgba(0, 0, 0, 0.5);
  transform: scale(1.1);
}

/* 轮播指示器样式 */
.video-slider-indicators {
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 10;
}

.video-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.video-indicator.active {
  background: #fff;
  transform: scale(1.2);
}

.video-indicator:hover {
  background: rgba(255, 255, 255, 0.8);
}



/* Banner - 幻灯片轮播 */
.banner {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
}

.banner-slider {
  position: relative;
  width: 100%;
  height: 100vh;
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  z-index: 1;
}

.banner-slide.active {
  opacity: 1;
  z-index: 2;
}

.banner-overlay {
  position: absolute;
  top: 0; 
  left: 0; 
  right: 0; 
  bottom: 0;
  background: linear-gradient(45deg, rgba(0, 0, 0, 0.3), rgba(0, 151, 224, 0.2));
  z-index: 1;
}

.banner .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.banner-content {
  text-align: center;
  color: #fff;
  margin: 0 auto;
  padding: 0;
  background: none;
  box-shadow: none;
  animation: fadeInUp 1s ease-out;
}

.banner-content h1 {
  font-size: 3.2rem;
  color: #fff;
  margin-bottom: 32px;
  font-weight: 500;
  letter-spacing: 1px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.banner-content p {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 0;
  letter-spacing: 1px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* 轮播控制按钮 */
.banner-controls {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 10;
  pointer-events: none;
}

.banner-prev,
.banner-next {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 1.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-prev:hover,
.banner-next:hover {
  background: rgba(22, 119, 255, 0.8);
  border-color: rgba(22, 119, 255, 0.8);
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(22, 119, 255, 0.3);
}

/* 轮播指示器 */
.banner-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 15px;
  z-index: 10;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.indicator.active {
  background: #0168b7;
  border-color: #0168b7;
  transform: scale(1.2);
  box-shadow: 0 0 15px rgba(22, 119, 255, 0.6);
}

.indicator:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: scale(1.1);
}

/* 联系我们模块 */
.contact-banner {
  background-color: #0097e0;
  padding: 30px 0;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  z-index: 20;
}

/* 固定在顶部时的样式 */
.contact-banner.sticky {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 15px 0;
  background-color: rgba(0, 151, 224, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  animation: slideDown 0.3s ease-out;
}

/* 为了避免固定时内容跳动，创建一个占位符 */
.contact-banner-placeholder {
  height: 0;
  transition: height 0.3s ease;
}

.contact-banner.sticky + .contact-banner-placeholder {
  height: 120px; /* 与contact-banner的原始高度相匹配 */
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.contact-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(255,255,255,0.05) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.05) 75%);
  background-size: 20px 20px;
  opacity: 0.3;
}

.contact-banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}

.contact-info h2 {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.contact-info .divider {
  width: 40px;
  height: 2px;
  background: #fff;
  margin-bottom: 8px;
  border-radius: 2px;
}

.contact-info p {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 300;
  letter-spacing: 1px;
  margin: 0;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.btn-contact {
  background: #fff;
  color: #0097e0;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border: 2px solid transparent;
  letter-spacing: 0.5px;
}

.btn-contact:hover {
  background: transparent;
  color: #fff;
  border-color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
}

/* 顶部导航 - 浮动在banner上 */
.navbar {
  background: rgba(30, 34, 41, 0.32);
  box-shadow: 0 4px 24px rgba(22,119,255,0.10);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  border-radius: 0 0 16px 16px;
  z-index: 30;
  transition: all 0.3s ease;
  backdrop-filter: blur(6px);
}
.navbar.scrolled {
  background: rgba(22, 119, 255, 0.95);
  backdrop-filter: blur(10px);
}
.navbar .container {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-size: 2rem; font-weight: bold; color: #fff; letter-spacing: 1px; }
.navbar nav ul { display: flex; gap: 40px; list-style: none; }
.navbar nav ul li a { font-size: 1.1rem; color: #fff; padding: 8px 0; letter-spacing: 1px; position: relative; transition: all 0.3s ease; }
.navbar nav ul li a:hover { color: #0168b7; transform: translateY(-2px); }
.navbar nav ul li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background: #0168b7;
  transition: all 0.3s ease;
}
.navbar nav ul li a:hover::after { width: 100%; left: 0; }
.btn-primary { background: linear-gradient(135deg, #0168b7, #0056b3); color: #fff; border: none; border-radius: 24px; padding: 8px 28px; font-size: 1rem; cursor: pointer; transition: all 0.3s ease; margin-left: 24px; display: inline-block; box-shadow: 0 4px 15px rgba(22, 119, 255, 0.3); }
.btn-primary:hover { background: linear-gradient(135deg, #0056b3, #0168b7); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(22, 119, 255, 0.4); }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  width: 30px;
  height: 20px;
  justify-content: space-between;
}
.mobile-menu-toggle span {
  width: 100%;
  height: 3px;
  background: #fff;
  transition: all 0.3s ease;
  border-radius: 2px;
}
.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }

/* 产品介绍 - 宽屏设计 */
.product-intro { 
  padding: 100px 0; 
  overflow: hidden;
  position: relative;
}

.product-intro .container {
  max-width: 1400px; /* 扩大容器宽度 */
  position: relative;
  z-index: 2;
}

.product-intro h2 { 
  font-size: 2.4rem; 
  color: #5f5f5f; 
  margin-bottom: 20px; 
  text-align: center;
  font-weight: normal;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #0168b7, #0056b3, #0168b7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}


.product-intro p { 
  color: #666; 
  margin-bottom: 30px; 
  font-size: 1.3rem; 
  line-height: 1.6;
  margin-left: auto; 
  margin-right: auto;
}

.product-intro p:first-of-type {
  font-size: 1.5rem;
  color: #5f5f5f;
  font-weight: 500;
  text-align: center;
  letter-spacing: 1.5px;
  margin-bottom: 40px;
  text-transform: uppercase;
}

/* 宽屏产品展示区域 */
.product-carousel { 
  display: block;
  padding: 0px 0 20px 0;
  position: relative;
  overflow: hidden;
}

.product-carousel .swiper-slide { 
  transition: transform 0.3s ease;
  width: 495px;
  padding:40px 0;
}

.product-carousel .swiper-slide img { 
  width: 100%;
  height: 365px;
  box-shadow: 0 0px 30px rgba(0, 0, 0, 0.15); 
  cursor: pointer;
  position: relative;
  overflow: hidden;
  opacity: 0.8;
  transform: scale3d(0.95, 0.95, 1) translateZ(0);
  will-change: transform, opacity;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease,
              box-shadow 0.3s ease;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}



.product-carousel .swiper-slide:hover img { 
  transform: scale3d(1.02, 1.02, 1) translate3d(0, -10px, 0);
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
  opacity: 1;
}

/* 产品轮播导航按钮样式 */
.product-next,
.product-prev {
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  color: #0168b7;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.product-next:hover,
.product-prev:hover {
  background-color: #0168b7;
  color: #fff;
  transform: scale(1.1);
}

.product-next:after,
.product-prev:after {
  font-size: 18px;
  font-weight: bold;
}

/* 产品轮播分页器样式 */
.product-pagination {
  position: relative;
  margin-top: 20px;
}

.product-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background-color: #ddd;
  opacity: 0.7;
  transition: all 0.3s ease;
}

.product-pagination .swiper-pagination-bullet-active {
  width: 30px;
  border-radius: 5px;
  background-color: #0168b7;
  opacity: 1;
}

/* 为更流畅的动画添加容器优化 */
.product-carousel {
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* 响应式网格调整 */
@media (min-width: 1600px) {
  .product-intro .container {
    max-width: 1600px;
  }
  
  .product-carousel .swiper-slide img {
    height: 350px;
  }
  
  .product-next,
  .product-prev {
    width: 60px;
    height: 60px;
  }
  
  .product-next:after,
  .product-prev:after {
    font-size: 22px;
  }
}




@media (max-width: 430px) {
.product-carousel .swiper-slide img {
    height: 320px;
  }
}
/* 技术参数按钮 */
.tech-btn { padding: 40px 0; text-align: center; }
.btn-secondary { 
  background: linear-gradient(135deg, #3e9cfc, #00a8ff); 
  color: #fff; 
  border: none; 
  border-radius: 30px; 
  padding: 16px 80px; 
  font-size: 1.1rem; 
  cursor: pointer; 
  transition: all 0.3s ease; 
  box-shadow: 0 8px 25px rgba(0, 168, 255, 0.3);
  font-weight: 500;
  letter-spacing: 0.5px;
}
.btn-secondary:hover { 
  background: linear-gradient(135deg, #00a8ff, #3e9cfc); 
  transform: translateY(-3px); 
  box-shadow: 0 12px 35px rgba(0, 168, 255, 0.4);
}

/* 功能模块 */
.features { padding: 0px 0 60px; text-align: center; }
.features h2 { font-size: 2.4rem; color: #0168b7; margin-bottom: 50px; font-weight: normal; position: relative; }

.features-subtitle {
  font-size: 1.3rem;
  color: #666;
  margin-bottom: 40px;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* 新的features-list布局 */
.features-list { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  gap: 10px; 
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
}

/* 左侧特性描述区域 */
.features-left {
  flex: 1;
  max-width: 700px;
  text-align: left;
}

.features-left .feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  background: none;
  padding: 0;
  width: auto;
  box-shadow: none;
  opacity: 1;
  transform: none;
}

.features-left .feature-item:last-child {
  margin-bottom: 0;
}
.feature-item:first-child{
  margin-left: 25%;
}
.feature-item:nth-child(2){
  margin-left: 11%;
}

/* 特性图标 */
.feature-icon {
  width: 110px;
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  flex-shrink: 0;
  position: relative;
  background: url('../images/title-bg.png') center center;
  background-size: cover;
}

.feature-icon.efficient {
  background: url('../images/title-bg.png') center center;
  background-size: cover;
}

.feature-icon.intelligent {
  background: url('../images/title-bg.png') center center;
  background-size: cover;
}

.feature-icon.precisior {
  background: url('../images/title-bg.png') center center;
  background-size: cover;
}

/* 特性内容 */
.feature-content h3 {
  color: #5f5f5f;
  font-size: 1.1rem;
  margin-bottom: 15px;
  font-weight: normal;
  line-height: 1.3;
  transition: all 0.3s ease;
}

.feature-content p {
  color: #5f5f5f;
  line-height: 1.6;
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

/* 鼠标悬停效果 */
.features-left .feature-item:hover .feature-content h3 {
  color: #3b87c5;
  font-size: 1.2rem;
}

.features-left .feature-item:hover .feature-content p {
  color: #3b87c5;
  font-size: 1.2rem;
}

/* 右侧旋转圆形展示区域 */
.features-right {
  flex: 1;
  max-width: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.rotating-circle {
  position: relative;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 旋转的边框层 */
.rotating-border {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid #c8c6c6;
  animation: rotate 20s linear infinite;
  pointer-events: none;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* 产品展示区域 - 不旋转 */
.product-display {
  position: relative;
  width: 390px;
  height: 390px;
  border-radius: 50%;
  overflow: hidden;
  background: #fff;
  box-shadow: inset 0 0 30px rgba(22, 119, 255, 0.1);
  z-index: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.product-display:hover {
  transform: scale(0.95);
  box-shadow: inset 0 0 40px rgba(22, 119, 255, 0.2);
}

.product-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  border-radius: 50%;
}

.product-image.active {
  opacity: 1;
}

/* 旋转的圆圈上的三个小圆点 */
.circle-dots {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  animation: rotate 20s linear infinite;
}

.dot {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #c8c6c6;
  cursor: pointer;
  transition: all 0.3s ease;
  pointer-events: auto;
  z-index: 100;
  top: 50%;
  left: 50%;
}

/* 三个圆点的位置 - 平均分布在圆周上 */
.dot:nth-child(1) {
  transform: translate(-50%, -50%) translateY(-200px);
}

.dot:nth-child(2) {
  transform: translate(-50%, -50%) rotate(120deg) translateY(-200px) rotate(-120deg);
}

.dot:nth-child(3) {
  transform: translate(-50%, -50%) rotate(240deg) translateY(-200px) rotate(-240deg);
}

/* 详细分析轮播 - 使用Swiper */
.analysis-carousel { 
  background: #f4f4f4; 
  padding: 80px 0 80px; 
  text-align: center; 
}

.analysis-carousel h2 { 
  color: #0168b7; 
  font-size: 2.4rem; 
  margin-bottom: 50px; 
  position: relative; 
  font-weight: normal;
}

/* Swiper容器 */
.analysis-container {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 60px;
}

.analysis-swiper {
  position: relative;
  width: 100%;
  margin: 0 auto;
}

.analysis-carousel .swiper {
  overflow: hidden; /* 保持hidden */
}

/* 自定义导航按钮 */
.analysis-swiper .swiper-button-next,
.analysis-swiper .swiper-button-prev {
  display: none; /* 隐藏默认按钮 */
}

.analysis-container .swiper-button-next,
.analysis-container .swiper-button-prev {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: transparent !important;
  border: 2px solid #31aae4 !important;
  border-radius: 50% !important;
  color: #31aae4 !important;
  font-size: 1.2rem !important;
  z-index: 10;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  outline: none;
}

.analysis-container .swiper-button-next {
  right: 0;
}

.analysis-container .swiper-button-prev {
  left: 0;
}

.analysis-next:hover, .analysis-prev:hover {
  background: rgba(22, 119, 255, 0.1) !important;
  transform: translateY(-50%) scale(1.1);
}

/* 隐藏默认的Swiper按钮样式并添加自定义箭头 */
.analysis-next:after, .analysis-prev:after {
  font-size: 1.2rem !important;
  font-weight: bold;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
}

.analysis-prev:after {
  content: '‹' !important;
  margin-left: -2px;
}

.analysis-next:after {
  content: '›' !important;
  margin-right: -2px;
}

/* 响应式样式 */
@media (max-width: 1024px) {
  .analysis-container {
    padding: 0 40px;
  }
  
  .analysis-container .swiper-button-next,
  .analysis-container .swiper-button-prev {
    width: 40px;
    height: 40px;
    font-size: 1.1rem !important;
  }
  
  .analysis-next:after, .analysis-prev:after {
    font-size: 1.1rem !important;
  }
}





/* 轮播项目内容 */
.carousel-item { 
  display: flex;
  flex-direction: column;
  opacity: 1;
  background: #fff;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  min-height: 500px;
}

.carousel-item:hover .carousel-item-content {
  background: linear-gradient(135deg, #0168b7, #00a8ff);
} 

.carousel-item:hover h3 {
  color: #fff;
}

.carousel-item:hover p {
  color: #fff;
}


.carousel-item img { 
  width: 100%; 
  height: 200px; 
  object-fit: cover;
  border-radius: 0;
  margin-bottom: 0; 
}

.carousel-item-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
}

.carousel-item h3 {
  color: #333;
  font-size: 1.2rem;
  margin-bottom: 18px;
  font-weight: 600;
  line-height: 1.4;
}

.carousel-item p { 
  color: #666; 
  font-size: 1.05rem; 
  line-height: 1.5; 
  margin: 0;
}

/* AI辅助诊断 */
.ai-diagnosis { background: linear-gradient(135deg, #f7fafd, #e8f3ff); padding: 80px 0 60px; }
.ai-diagnosis h2 { color: #0168b7; font-weight: 500; font-size: 2.5rem; margin-bottom: 50px; text-align: center; position: relative; }

.ai-content { display: flex; align-items: center; justify-content: center; gap: 60px; flex-wrap: wrap; opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.ai-content.animate-in { opacity: 1; transform: translateY(0); }
.ai-content img { width: 300px; height: 200px; border-radius: 15px; box-shadow: 0 8px 30px rgba(22,119,255,0.15); transition: all 0.3s ease; }
.ai-content img:hover { transform: scale(1.05); box-shadow: 0 12px 40px rgba(22,119,255,0.25); }
.ai-content p { max-width: 450px; color: #666; font-size: 1.2rem; line-height: 1.8; }

/* 双报告 */
.dual-report { background: #fff; padding: 80px 0 60px; text-align: center; }
.dual-report h2 { color: #0168b7; font-size: 2.5rem; margin-bottom: 50px; position: relative; }
.dual-report h2::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 3px;
  background: #0168b7;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}
.dual-content { display: flex; justify-content: center; gap: 50px; margin-bottom: 30px; flex-wrap: wrap; opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.dual-content.animate-in { opacity: 1; transform: translateY(0); }
.dual-content img { width: 250px; height: 180px; border-radius: 15px; box-shadow: 0 8px 30px rgba(22,119,255,0.15); transition: all 0.3s ease; }
.dual-content img:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(22,119,255,0.25); }
.dual-report p { color: #666; font-size: 1.1rem; max-width: 600px; margin: 0 auto; line-height: 1.7; }

/* 替换为新的综合诊断系统板块 */
.diagnosis-system {
  padding: 100px 0 100px;
}

.diagnosis-system h2 {
  color: #0168b7;
  font-weight: normal;
  font-size: 2.4rem;
  margin-bottom: 50px;
  text-align: center;
  position: relative;
}


.system-category {
  margin-bottom: 70px;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.system-category:last-child {
  margin-bottom: 0;
}

.system-category.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.system-category-title {
  color: #0168b7;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 30px;
  text-align: left;
  position: relative;
  padding-left: 20px;
}

.system-category-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  height: 18px;
  width: 4px;
  background-color: #0168b7;
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(1, 104, 183, 0.5);
}

.system-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.system-text {
  flex: 1;
  min-width: 300px;
}

.system-features {
  list-style: none;
}

.system-feature-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
}

.system-feature-item:last-child {
  margin-bottom: 0;
}

.feature-dot {
  width: 10px;
  height: 10px;
  background-color: #46e1c0;
  border-radius: 50%;
  margin-top: 8px;
  margin-right: 15px;
  flex-shrink: 0;
}

.feature-description {
  color: #666;
  font-size: 1.1rem;
  line-height: 1.6;
}

.system-image {
  flex: 1;
  min-width: 300px;
  display: flex;
  justify-content: center;
}

.system-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  box-shadow: 0 8px 30px rgba(22,119,255,0.15);
  transition: all 0.3s ease;
}

.system-image img:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 40px rgba(22,119,255,0.25);
}




/* 便携式介绍 */
.portable { background-color: #f7fafd; padding: 80px 0 60px; text-align: center; }
.portable h2 { color: #0168b7; font-size: 2.4rem; margin-bottom: 50px; position: relative; font-weight: normal;}
.portable-content { 
  display: flex; 
  justify-content: space-between;
  gap: 30px; 
  flex-wrap: wrap; 
  margin-top: 50px;
}
.portable-item {
  flex: 1;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}
.portable-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}
.portable-item img { 
  width: 100%;
  height: auto;
  box-shadow: 0 8px 30px rgba(138, 138, 138, 0.15); 
  transition: all 0.3s ease; 
  margin-bottom: 20px;
}
.portable-item img:hover { 
  transform: scale(1.05); 
}
.portable-item h3 {
  color: #0168b7;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
}
.portable-item p { 
  color: #666; 
  font-size: 1.1rem; 
  line-height: 1.6;
}



/* 视频区域 */
.video-section { background: #fff; padding: 80px 0 60px; text-align: center; }
.video-section h2 {
  color: #0168b7;
  font-weight: normal;
  font-size: 2.4rem;
  margin-bottom: 20px;
  text-align: center;
  position: relative;
}
.video-wrapper {  margin: 0 auto; overflow: hidden; transition: all 0.3s ease; }
.video-wrapper:hover { transform: translateY(-5px); }

.video-images {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.video-image-container {
  flex: 1;
  min-width: 300px;
}

.video-image {
  width: 100%;
  height: auto;
  box-shadow: 0 8px 30px rgba(22,119,255,0.15);
  transition: all 0.3s ease;
}

.video-image:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 40px rgba(22,119,255,0.25);
}



/* 技术参数 */
.tech-specs { 
  padding: 80px 0 100px; 
  text-align: center;
  background: url('../images/specs-bg.jpg') no-repeat bottom center;
  background-size: 100%;
  position: relative;
}

.tech-specs .container {
  position: relative;
  z-index: 1;
}

.tech-specs h2 { 
  color: #0168b7; 
  font-size: 2.5rem; 
  margin-bottom: 150px; 
  position: relative;
  font-weight: normal;
}

.specs-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  text-align: left;
}

.specs-left {
  flex: 1.8;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.specs-right {
  width: 80%;
  margin-top: -120px;
  flex: 1.2;
  background: url('../images/product-bg.png') no-repeat top center;
  background-size: 100%;
  padding: 40px;
}

.specs-accordion {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between; /* 分散对齐项目 */
  gap: 15px; /* 保持项目间的整体间距 */
  align-items: flex-start; /* 防止项目在交叉轴上拉伸 */
}

.specs-item {
  margin-bottom: 20px;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(22, 119, 255, 0.1);
  transition: all 0.3s ease;
  display: flex; 
  flex-direction: column;
  width: calc(50% - 8px); /* 每项宽度为50%减去一半的间距 */
}

.specs-item:hover {
  box-shadow: 0 8px 25px rgba(22, 119, 255, 0.15);
  transform: translateY(-2px);
}

.specs-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.specs-header span {
  font-size: 1.1rem;
  color: #999999;
  font-weight: 500;
}

.expand-btn {
  background: #17a4fe;
  border: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.expand-btn img {
  width: 12px;
  height: 12px;
  transition: transform 0.3s ease;
}

.specs-item.active .expand-btn img {
  transform: rotate(180deg);
}

.specs-details {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  opacity: 0;
}

.specs-item.active .specs-details {
  padding: 0 20px 15px;
  max-height: 500px;
  opacity: 1;
}

.specs-details p {
  color: #666;
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

.specs-downloads {
  display: flex;
  gap: 20px;
}

.download-item {
  flex: 1;
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  display: flex;
  gap: 15px;
  box-shadow: 0 4px 15px rgba(22, 119, 255, 0.1);
  transition: all 0.3s ease;
  color: #0097e0;

}

.download-item:hover {
  box-shadow: 0 8px 25px rgba(22, 119, 255, 0.15);
  transform: translateY(-2px);
}

.download-icon {
  width: 20px;
  height: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-icon img {
  width: 20px;
  height: 20px;
}

.download-info {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.download-brand {
  font-size: 0.9rem;
  font-weight: 500;
}

.download-title {
  height: 52px;
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 10px;
}

.download-link {
  display: flex;
  align-items: center;
  gap: 5px;
  color: #0097e0;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.download-link:hover {
  color: #0056b3;
  text-decoration: underline;
}

.download-link img {
  width: 14px;
  height: 14px;
}

.product-image-container {
  width: 100%;
  height: 370px;
  overflow: hidden;
  border-radius: 20px;
  transition: all 0.3s ease;
  padding: 10px 30px 50px 30px;
}

.product-image-container:hover {
  transform: translateY(-5px);
}

.specs-product-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: all 0.3s ease;
}

.specs-product-image:hover {
  transform: scale(1.05);
}


/* 联系表单 */
.contact-form { background:#268ae0 url('../images/bg1.jpg') no-repeat top center;background-size: 100%; padding: 80px 0; text-align: center; }
.contact-form h2 { color: #fff; font-size: 2.4rem; margin-bottom: 50px; font-weight: normal; position: relative; }
.contact-form p { margin-bottom: 40px; color: #fff; font-size: 1.4rem; }
.contact-form form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap; /* 允许项目换行 */
  justify-content: space-between; /* 分散对齐，处理间距 */
  gap: 24px;
}
.contact-form input {
  border: 2px solid #e8f3ff;
  border-radius: 8px;
  padding: 16px 20px;
  color: #fff;
  font-size: 1.1rem;
  background: none;
  transition: all 0.3s ease;
  font-family: inherit;
  width: calc(50% - 12px); /* 一行两个，减去一半的gap */
  box-sizing: border-box; /* 确保padding和border不影响宽度计算 */
}
.contact-form textarea {
  border: 2px solid #e8f3ff;
  border-radius: 8px;
  padding: 16px 20px;
  color: #fff;
  font-size: 1.1rem;
  background: none;
  transition: all 0.3s ease;
  font-family: inherit;
  min-height: 150px;
  resize: vertical;
  width: 100%; /* textarea 占据整行 */
  box-sizing: border-box;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #fff; /* 设置placeholder文字颜色为白色 */
  opacity: 0.8; /* 可选：稍微降低一点透明度，使其不过于刺眼 */
}
.contact-form input:focus,
.contact-form textarea:focus {
  border: 2px solid #0068b7; /* 聚焦时边框颜色改为 #00aeb9 */
  outline: none;
  background: none;
  box-shadow: 0 0 0 3px rgba(0, 174, 185, 0.1); /* 聚焦时阴影颜色也对应修改 */
}
.contact-form button {
  /* align-self: flex-end; */ /* 移除，使其自然占据整行 */
  background: #00aeb9; /* 修改按钮背景色 */
  color: #fff;
  border: none;
  border-radius: 30px;
  padding: 16px 20px; /* 调整padding以适应宽度 */
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 174, 185, 0.3);
  width: 100%; /* 按钮宽度和textarea一样 */
  box-sizing: border-box;
}
.contact-form button:hover {
  background: #008c9e; /* 鼠标悬停时的颜色加深 */
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 174, 185, 0.4);
}



/* 页脚 */
footer {
  background-color: #0068b7; /* 根据图片调整背景色 */
  color: #fff;
  padding: 60px 0 30px;
  font-size: 14px;
  line-height: 1.8;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 40px;
}

.footer-left {
  flex: 2.2; /* 左侧占据更多空间 */
  display: flex;
  flex-direction: column;
}

.footer-logo-area {
  margin-bottom: 30px;
}

.footer-logo-img {
  width: 180px; /* 根据实际logo大小调整 */
  height: auto;
}

.footer-contact-info {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.qr-code-area {
  text-align: center;
}

.qr-code-img {
  width: 100px; /* 二维码大小 */
  height: 100px;
  margin-bottom: 8px;
  background-color: #fff; /* 如果二维码是透明背景，给个白色底 */
  padding: 5px; /* 可选：给二维码一点内边距 */
  border-radius: 4px;
}

.qr-code-caption {
  font-size: 12px;
  color: #b0d9ff; /* 浅蓝色文字 */
  line-height: 1.5;
}

.contact-details p {
  margin-bottom: 8px;
  color: #fff;
}

.contact-details p:last-child {
  margin-bottom: 0;
}

.footer-right {
  flex: 1.8; /* 右侧导航占据更多空间 */
  display: flex;
  justify-content: space-between;
  gap: 20px; /* 列之间的间距 */
}

.footer-nav-col {
  flex: 1;
}

.footer-nav-col h4 {
  font-size: 16px;
  margin-bottom: 20px;
  color: #fff;
  font-weight: 600;
}

.footer-nav-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-nav-col ul li a {
  color: #b0d9ff; /* 浅蓝色链接 */
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-nav-col ul li a:hover {
  color: #fff; /* 悬停时变白 */
  text-decoration: underline;
}

.footer-divider {
  border: none;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.2);
  margin-bottom: 30px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #b0d9ff;
}

.copyright-info p {
  margin: 0;
}

.policy-links a {
  color: #b0d9ff;
  text-decoration: none;
  margin-left: 15px;
  transition: color 0.3s ease;
}

.policy-links a:hover {
  color: #fff;
  text-decoration: underline;
}




/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
.pulse-animation { animation: pulse 2s infinite; }

/* 响应式设计 */
@media (max-width: 1024px) {
  .analysis-swiper {
    padding: 0 60px;
  }
  
  .analysis-next, .analysis-prev {
    width: 50px;
    height: 50px;
    font-size: 1.3rem !important;
  }
  
  .analysis-prev {
    left: 10px;
  }
  
  .analysis-next {
    right: 10px;
  }
}



/* Swiper slide样式 */
.analysis-swiper .swiper-slide {
  /* Swiper会自动处理宽度和居中 */
  opacity: 1; /* 非中心项目半透明 */
  transform: scale(1); /* 非中心项目稍微缩小 */
  transition: all 0.3s ease;
}

/* 中心slide样式 */
.analysis-swiper .swiper-slide-active {
  opacity: 1; /* 中心项目完全不透明 */
  transform: scale(1); /* 中心项目正常大小 */
}

@media (max-width: 1390px) {
  .contact-form {
    padding: 70px 0;
  }
  .tech-specs {
    padding-top: 40px;
  }
}
@media (max-width: 1360px) {
  .contact-form {
    padding: 50px 0 70px;
  }
  .tech-specs {
    padding-top: 30px;
  }
  .tech-specs h2 {
    margin-bottom: 120px;
  }
  .specs-item {
    margin-bottom: 15px;
  }
  .specs-right {
    margin-top: -80px;
  }
 
}
@media (max-width: 1300px) {
  .contact-form {
    padding: 40px 0 40px;
  }
  .contact-form h2 {
    margin-bottom: 20px;
  }
}
@media (max-width: 1200px) {
  .product-carousel .swiper-slide img {
    height: 270px;
  }
  
  .product-next,
  .product-prev {
    width: 45px;
    height: 45px;
  }
  .product-image-container {
  height: 320px;
  }
  .contact-form h2 {
    margin-bottom: 15px;
  }
  .contact-form input {
    padding: 12px 20px;
  }
  .contact-form textarea {
    min-height: 120px;
  }
  .tech-specs h2 {
    margin-bottom: 80px;
  }
  .specs-right {
    margin-top: -60px;
  }
  .specs-item {
    margin-bottom: 5px;
  }
  
}
@media (max-width: 992px) {
  .portable-content {
    justify-content: center;
  }
  
  .portable-item {
    min-width: 250px;
    margin-bottom: 30px;
  }
  .system-text,
  .system-image {
    width: 100%;
  }
  
  .system-image {
    order: -1;
    margin-bottom: 30px;
  }
  
  .system-image img {
    max-width: 100%;
  }
  
  .diagnosis-system {
    padding: 80px 0 80px;
  }

  .features-list {
    flex-direction: column;
  }

  .features-left {
    width:100%;
  }
  .features-right {
    width:100%;
  }
  .feature-item:first-child{
    margin-left: 0;
  }
  .feature-item:nth-child(2){
    margin-left: 0;
  }

  .specs-content {
    flex-direction: column;
  }
  
  .specs-right {
    width: 50%;
    order: -1;
    margin-bottom: 30px;
    margin-left: 50%;
    transform: translateX(-50%);
    padding: 20px 70px 10px 70px;
    margin-bottom: 0px;
  }
  .product-image-container {
    max-width: 400px;
    margin: 0 auto;
    height: 400px;
  }
  
  .tech-specs {
    padding-bottom: 200px;
  }
}

@media (max-width: 768px) {
  .portable-item {
    min-width: 100%;
  }
  .system-image img {
    max-width: 500px;
  }
  .portable-item img {
    max-width: 500px;
  }
  .system-image {
    order: -1;
    margin-bottom: 10px;
  }

  .system-content {
    flex-direction: column;
  }
  .diagnosis-system {
    padding: 70px 0 70px;
  }
  
  .diagnosis-system h2 {
    font-size: 2rem;
  }
  
  .system-category {
    margin-bottom: 50px;
  }
  
  .system-category-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
  }
  
  .feature-description {
    font-size: 1rem;
  }
  .feature-item:first-child{
    margin-left: 0;
  }
  .feature-item:nth-child(2){
    margin-left: 0;
  }
  .video-image-container {
    margin-bottom: 20px;
  }
  .portable,.video-section {
    padding: 40px 0;
  }
  .container { 
    padding: 0 15px; 
  }
  
  .navbar nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(22, 119, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 0 0 16px 16px;
  }
  
  .navbar nav ul {
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
  }
  
  .navbar nav ul li {
    width: 100%;
    text-align: center;
  }
  
  .navbar nav ul li a {
    display: block;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .banner { 
    min-height: 70vh; 
    background-attachment: scroll;
  }
  
  .banner-slider {
    height: 70vh;
  }
  
  .banner-slide {
    background-attachment: scroll;
  }
  
  .banner-controls {
    padding: 0 20px;
  }
  
  .banner-prev,
  .banner-next {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .banner-indicators {
    bottom: 20px;
    gap: 10px;
  }
  
  .indicator {
    width: 10px;
    height: 10px;
  }

  .banner-content h1 { 
    font-size: 1.8rem; 
  }

  .banner-content p { 
    font-size: 1.1rem; 
  }
  
  .btn-primary, .btn-secondary { 
    padding: 12px 24px; 
    font-size: 1rem; 
  }
  
  .product-intro,
  .features,
  .analysis-carousel,
  .ai-diagnosis,
  .dual-report,
  .portable,
  .tech-specs,
  .contact-form {
    padding: 60px 0 40px;
  }
  
  .product-intro h2,
  .features h2,
  .analysis-carousel h2,
  .ai-diagnosis h2,
  .dual-report h2,
  .portable h2,
  .tech-specs h2,
  .contact-form h2 {
    font-size: 1.8rem !important;
    margin-bottom: 30px;
    line-height: 1.4;
  }
  
  .feature-item {
    width: 100%;
    min-width: unset;
    padding: 30px 20px;
  }
  
  .carousel-item img, 
  .portable-content img, 
  .ai-content img, 
  .dual-content img { 
    width: 100%; 
    height: auto; 
  }
  
  .specs-table img { 
    width: 150px; 
    height: 150px; 
  }
  
  .specs-table table {
    min-width: 300px;
  }
  
  .specs-table th, .specs-table td {
    padding: 12px 20px;
    font-size: 1rem;
  }
  
  .video-wrapper { 
    max-width: 100%; 
    border-radius: 12px;
  }
  
  .contact-form form {
    max-width: 100%;
  }
  
  .ai-content,
  .portable-content {
    gap: 30px;
  }
  
  .ai-content p,
  .portable-content p {
    font-size: 1.1rem;
    text-align: center;
  }
  
  /* Analysis Carousel 768px响应式 - 保持横排但调整间距 */
  .carousel-wrapper {
    padding: 0 20px;
  }
  
  .carousel-container {
    gap: 15px;
  }
  
  .carousel-item h3 {
    font-size: 1.2rem;
  }
  
  .carousel-item p {
    font-size: 0.95rem;
  }
  
  .carousel-item-content {
    padding: 20px;
  }
  
  .carousel-prev,
  .carousel-next {
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
  }
  
  /* Contact Banner 小屏幕样式 */
  .contact-banner {
    padding: 30px 0;
  }
  
  .contact-banner.sticky {
    padding: 15px 0;
  }
  
  .contact-banner.sticky .contact-info h2 {
    font-size: 1rem;
    margin-bottom: 6px;
  }
  
  .contact-banner.sticky .contact-info .divider {
    width: 30px;
    height: 2px;
    margin-bottom: 6px;
  }
  
  .contact-banner.sticky .contact-info p {
    font-size: 0.8rem;
    letter-spacing: 0.5px;
  }
  
  .contact-banner.sticky .btn-contact {
    padding: 8px 10px;
    font-size: 0.8rem;
  }
  
  .contact-info h2 {
    font-size: 1.3rem;
    margin-bottom: 8px;
  }

  .contact-info .divider {
    width: 40px;
    height: 2px;
    margin-bottom: 8px;
  }

  .contact-info p {
    font-size: 1.2rem;
    letter-spacing: 1px;
  }

  .btn-contact {
    padding: 12px 28px;
    font-size: 1rem;
  }

  .product-carousel {
    margin-top: 40px;
    padding: 30px 0;
  }
  
  .product-carousel .swiper-slide img {
    height: 240px;
  }
  
  .product-next,
  .product-prev {
    width: 40px;
    height: 40px;
  }
  
  .product-next:after,
  .product-prev:after {
    font-size: 16px;
  }
  
  .product-pagination {
    margin-top: 15px;
  }
  
  .product-pagination .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
  }
  
  .product-pagination .swiper-pagination-bullet-active {
    width: 25px;
  }
  .analysis-swiper {
    padding: 0 40px;
  }
  
  .carousel-item {
    min-height: 450px;
  }
  
  .carousel-item h3 {
    font-size: 1.1rem;
  }
  
  .carousel-item p {
    font-size: 1rem;
  }
  
  .carousel-item-content {
    padding: 20px;
  }
  
  .analysis-next, .analysis-prev {
    width: 40px;
    height: 40px;
    font-size: 1.1rem !important;
  }
  .analysis-container {
    padding: 0 30px;
  }
  
  .analysis-container .swiper-button-next,
  .analysis-container .swiper-button-prev {
    width: 36px;
    height: 36px;
    font-size: 1rem !important;
  }
  
  .analysis-next:after, .analysis-prev:after {
    font-size: 1rem !important;
  }
  .rotating-circle {
    width:300px;
    height:300px;
  }
  .product-display {
    width:290px;
    height:290px;
  }
  .dot:nth-child(1) {
    transform: translate(-50%, -50%) translateY(-150px);
  }
  
  .dot:nth-child(2) {
    transform: translate(-50%, -50%) rotate(120deg) translateY(-150px) rotate(-120deg);
  }
  
  .dot:nth-child(3) {
    transform: translate(-50%, -50%) rotate(240deg) translateY(-150px) rotate(-240deg);
  }
  .video-slide h2 {
    font-size: 1.8rem;
  }
  .video-slide h4 {
    font-size: 1.2rem;
  }
  .video-slider-controls {
    padding: 0 15px;
  }
  .video-prev, 
  .video-next {
    width: 35px;
    height: 35px;
    font-size: 16px;
  }
  .video-slider-indicators {
    bottom: 15px;
  }
  
  .video-indicator {
    width: 10px;
    height: 10px;
  }
  .tech-specs {
    padding: 60px 0 40px;
  }
  
  .tech-specs h2 {
    font-size: 2rem;
    margin-bottom: 30px;
  }
  
  .specs-header span {
    font-size: 1rem;
  }
  
  .specs-details p {
    font-size: 0.9rem;
  }
  
  .product-image-container {
    height: 300px;
    padding: 0px 10px 50px 10px;
  }
  
  .specs-accordion {
    flex-direction: column;
  }
  
  .specs-item {
    width: 100%;
  }
  .contact-form input {
    width: 100%;
  }
  .footer-main {
    flex-direction: column;
    gap: 30px;
  }
  .footer-left,
  .footer-right {
    flex: none; /* 取消flex比例 */
    width: 100%;
  }
  .footer-right {
    display: none;
  }
  .footer-nav-col {
    flex-basis: calc(50% - 10px); /* 两列显示 */
    margin-bottom: 20px;
    text-align: center;
  }

  .footer-contact-info {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .contact-details {
    margin-top: 20px;
  }
  .footer-nav-col h4 {
    margin-bottom: 15px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .policy-links a {
    margin: 0 8px;
  }
}

@media (max-width: 480px) {
  .analysis-swiper {
    padding: 0 20px;
  }
  
  .carousel-item {
    min-height: 390px;
  }
  
  .carousel-item h3 {
    font-size: 1rem;
  }
  
  .carousel-item p {
    font-size: 0.9rem;
  }
  
  .carousel-item-content {
    padding: 20px;
  }
  .footer-nav-col {
    flex-basis: 100%; /* 单列显示 */
  }
  .contact-info h2 {
    font-size: 0.9rem;
  }
  .contact-info p {
    font-size: 0.7rem;
  }
  .btn-contact {
    padding: 5px 10px;
    font-size: 0.8rem;
  }
  .analysis-carousel,.diagnosis-system {
    padding: 40px 0 40px;
  }
  
  .diagnosis-system h2 {
    font-size: 1.8rem;
  }
  
  .system-category-title {
    font-size: 1.3rem;
  }
  
  .feature-description {
    font-size: 0.95rem;
  }
  .carousel-container {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }
  
  .carousel-item {
    max-width: 100%;
    width: 100%;
  }
  
  .carousel-item.featured {
    order: -1;
  }
  
  .carousel-prev,
  .carousel-next {
    position: relative;
    top: auto;
    transform: none;
    margin: 20px 10px 0;
    display: inline-block;
  }
  
  .carousel-prev { 
    left: auto; 
  }
  
  .carousel-next { 
    right: auto; 
  }

  .banner-content h1 {
    font-size: 1.5rem;
  }
  
  .banner-content p {
    font-size: 1rem;
  }
  
  .banner-controls {
    padding: 0 15px;
  }
  
  .banner-prev,
  .banner-next {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .banner-indicators {
    bottom: 15px;
    gap: 8px;
  }
  
  .indicator {
    width: 8px;
    height: 8px;
  }
  
  .product-intro p:first-of-type {
    font-size: 1.2rem;
    letter-spacing: 1px;
  }
  
  .product-intro p {
    font-size: 1rem;
  }
  
  .product-carousel {
    margin-top: 30px;
    padding: 20px 0;
  }
  
  .product-carousel .swiper-slide img {
    height: 300px;
  }
  
  .product-next,
  .product-prev {
    width: 35px;
    height: 35px;
  }
  
  .product-next:after,
  .product-prev:after {
    font-size: 14px;
  }
  
  .product-pagination .swiper-pagination-bullet-active {
    width: 20px;
  }
  .video-slide h2 {
    font-size: 1.5rem;
  }
  
  .video-slide h4 {
    font-size: 1rem;
  }
  
  .video-prev, 
  .video-next {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }
  .tech-specs h2 {
    font-size: 1.8rem;
  }
  
  .specs-item {
    margin-bottom: 10px;
  }
  
  .specs-header {
    padding: 12px 15px;
  }
  
  .specs-header span {
    font-size: 0.9rem;
  }
  
  .download-item {
    padding: 15px;
  }
  
  .download-title {
    font-size: 0.9rem;
  }
  .specs-right {
    margin-top: 0px;
    width: 60%;
    padding: 20px 40px 0px 40px;
  }
  .product-image-container {
    height: 200px;
    padding: 0px 10px 50px 10px;
  }
  .specs-downloads {
    flex-direction: column;
  }
  .analysis-container {
    padding: 0 20px;
  }
}
@media (max-width: 390px) {
  .carousel-item {
    min-height: 420px;
  }
}

@media (max-width: 360px) {
  .carousel-item {
    min-height: 450px;
  }
}
@media (max-width: 360px) {
  .carousel-item {
    min-height: 500px;
  }
}