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

body {
  font-family: 'Microsoft YaHei', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

a {
  text-decoration: none;
  color: #333;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 50px;
  position: relative;
  color: #333;
}

.section-title:after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background-color: #0078d7;
  margin: 15px auto 0;
}

/* 导航栏样式 */
header {
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
}

.logo img {
      width: 23%;
}

nav ul {
  display: flex;
}

nav ul li {
  margin-left: 30px;
}

nav ul li a {
  font-size: 1rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

nav ul li a:hover {
  color: #0078d7;
}

/* Banner轮播图样式 */
.banner {
  padding-top: 80px; /* 为固定导航栏留出空间 */
}

.slider {
  position: relative;
  overflow: hidden;
  height: 600px;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  background-color: #000;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.slide-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  width: 80%;
}

.slide-content h2 {
  font-size: 3rem;
  margin-bottom: 20px;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}

.slide-content p {
  font-size: 1.5rem;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.slider-controls button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
  border: none;
  width: 50px;
  height: 50px;
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.3s ease;
  z-index: 10;
}

.slider-controls button:hover {
  background: rgba(255, 255, 255, 0.5);
}

.prev-btn {
  left: 20px;
}

.next-btn {
  right: 20px;
}

.slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  z-index: 10;
}

.dot {
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.5);
  margin: 0 5px;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease;
}

.dot.active {
  background: #fff;
}

/* 公司介绍样式 */
.about {
  padding: 100px 0;
  background-color: #fff;
}

.about-content {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.about-image {
  flex: 1;
  min-width: 300px;
  padding: 0 15px;
}

.about-text {
  flex: 1;
  min-width: 300px;
  padding: 0 15px;
}

.about-text p {
  margin-bottom: 15px;
  font-size: 1.1rem;
  line-height: 1.8;
}

/* 业务范围样式 */
.services {
  padding: 100px 0;
  background-color: #f5f5f5;
}

.service-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.service-item ul li{
	    list-style: disc;
	    text-align: left;
}
.service-item {
 width: 30.33%;
  margin: 15px;
  padding: 30px;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
  margin-bottom: 20px;
}

.service-icon img {
  /*width: 80px;*/
  /*height: 80px;*/
}

.service-item h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #0078d7;
}
.service-item h3 p{
	font-size: 16px;
}
/* 合作优势样式 */
.advantages {
  padding: 100px 0;
  background-color: #fff;
}

.advantage-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.advantage-item {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  margin: 15px;
  padding: 30px;
  background-color: #f9f9f9;
  border-radius: 5px;
  text-align: center;
  transition: transform 0.3s ease;
}

.advantage-item:hover {
  transform: translateY(-10px);
}

.advantage-icon {
  font-size: 2.5rem;
  font-weight: 700;
  color: #0078d7;
  margin-bottom: 20px;
}

.advantage-item h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #333;
}

/* 合作客户样式 */
.clients {
  padding: 100px 0;
  background-color: #f5f5f5;
}

.client-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.client-item {
  height: 63px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      flex: 0 0 calc(12% - 30px);
      margin: 15px;
      /* padding: 20px; */
      background-color: #fff;
      border-radius: 5px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
      text-align: center;
      transition: transform 0.3s ease;
}

.client-item:hover {
  transform: scale(1.05);
}

.client-item img {
  width: 100%;
      height: 100%;
  transition: filter 0.3s ease;
}


/* 联系我们样式 */
.contact {
  padding: 100px 0 50px;
  background-color: #333;
  color: #fff;
}

.contact .section-title {
  color: #fff;
}

.contact .section-title:after {
  background-color: #fff;
}

.contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-bottom: 50px;
}

.contact-item {
  flex: 1;
  min-width: 250px;
  margin: 15px;
  text-align: center;
}

.contact-item h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #0078d7;
}

.copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }

  header .container {
    flex-direction: column;
  }

  nav ul {
    margin-top: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }

  nav ul li {
    margin: 5px 10px;
  }

  .slider {
    height: 400px;
  }

  .slide-content h2 {
    font-size: 2rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .about-content {
    flex-direction: column;
  }

  .about-image,
  .about-text {
    flex: 100%;
    margin-bottom: 30px;
  }

  .service-item,
  .advantage-item,
  .client-item {
    flex: 0 0 calc(50% - 30px);
  }
}

@media (max-width: 480px) {
  .service-item,
  .advantage-item,
  .client-item {
    flex: 0 0 100%;
  }

  .slider {
    height: 300px;
  }

  .slider-controls button {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}