/* Header Styles */
body{
  overflow-x: hidden;
}
.container{
  /*padding: 0px 30px;*/
}
header {
  background-color: #f0f8ff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.swiper-slide > img{
  width: 100%;
  height: 500px;
  max-height: 650px;
}

.logo img {
  height: 40px;
}

nav ul {
  list-style: none;
  display: flex;
}

nav ul li {
  margin-left: 130px;
}

nav ul li a {
  text-decoration: none;
  color: #000000;
  font-size: 17px;
  font-weight: 500;
  position: relative;
}

nav ul li a.active,
nav ul li a:hover {
  color: #3377FF;
}

nav ul li a.active::after,
nav ul li a:hover::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #3377FF;
}

/* Banner Styles */
.banner {
  background: #f0f8ff url('https://videos.topedu.top/images/banner1.png') no-repeat;
  background-size: 100% 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
}

.banner .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}



.banner-content h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

.banner-content p {
  font-size: 16px;
  margin-bottom: 30px;
}

.banner-content .btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #fff;
  color: #3377FF;
  text-decoration: none;
  border-radius: 5px;
}



/* Services Styles */
.services {
  text-align: center;
  background: #fff url('https://videos.topedu.top/images/service-banner.png') no-repeat;
  background-size: 100% 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.service-description ul {
  /*list-style-type: circle;*/
  padding: 0 50px 0px 50px;
  margin: 0;
  text-align: left;
  font-family: PingFang SC, PingFang SC, sans-serif;
  font-weight: 400;
  font-size: 15px;
  color: #000000;
  line-height: 40px;
  font-style: normal;
  text-transform: none
}

.service-description li {
  margin: 4px 0;
}

.service-icons {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin-top: 30px;
}

.icon-item {
  flex: 0 0 calc(16.666% - 20px);
  margin: 10px;
  text-align: center;
  font-family: PingFang SC, PingFang SC, sans-serif;
  font-weight: 400;
  font-size: 17px;
  color: #535353;
  /*line-height: 80px;*/
  font-style: normal;
  text-transform: none
}

.icon-item img {
  max-width: 100%;
  width: 50px;
  height: 50px;
  /*margin-bottom: 5px;*/
}

.product-box{
  display: flex;
  justify-content: center;
}

/* Product Highlights Styles */
.product-highlights {
  background: rgb(232,240,252) url("https://videos.topedu.top/images/back1.png") no-repeat;
  background-size: 100% 100%;
  padding: 10px 100px 10px 100px;
  text-align: center;
}

.highlight-images {
  display: flex;
  justify-content: center;
  /*margin-bottom: 30px;*/
  width: 50%;
}

.highlight-images img {
  max-width: 100%;
  height: 450px;
  margin: 0 10px;
}

.highlight-text {
  /*text-align: left;*/
  text-align: justify;
  margin: 0 auto;
  padding: 10px 40px;
  max-width: 800px;
  width: 50%;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 350;
  font-size: 16px;
  color: #000000;
  line-height: 32px;
  font-style: normal;
  text-transform: none;
}
.highlight-text-gywm {
  text-align: justify;
  margin: 0 auto;
  padding: 30px 40px;
  max-width: 800px;
  width: 50%;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 350;
  font-size: 16px;
  color: #000000;
  line-height: 32px;
  font-style: normal;
  text-transform: none;
}

/* Why Choose Us Styles */
.why-choose-us {
  padding: 15px 0 50px 0;
  background: rgb(232,240,252) url("https://videos.topedu.top/images/back1.png") no-repeat;
  text-align: center;
}

.reasons {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}
.reasons-box{
  max-width: 1024px;
  display: flex;
  justify-content: center;
  align-items: center;

}
.reason-item-title .reason-item-title-img{
  padding: 0 10px;
}
.reason-item-content{
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 350;
  font-size: 15px;
  color: #000000;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.reason-item-title img{
    max-width: 50px;
    height: 50px;
    margin-bottom: 0px;
}

.reason-item {
  flex: 0 0 calc(50% - 20px);
  margin: 10px;
  text-align: left;
  border: 1px solid #eaeaea;
  padding: 20px 50px 10px 50px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  width: 30%;
}

h2{
  font-family: PingFang SC, PingFang SC, serif;
  font-weight: 900;
  font-size: 28px;
  color: #000000;
  line-height: 48px;
  font-style: normal;
  text-transform: none;
}


.reason-item h3 {
  margin: 10px 0;
}

/* Footer Styles */
footer {
  background-color: #1a1a1a;
  color: #fff;
  padding: 40px 0;
  font-size: 14px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;

}

.company-info {
  max-width: 400px;
}

.company-info p {
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 350;
  margin-top: 10px;
  text-align: justify;
}

.footer-logo {
  height: 30px; /* 根据实际 logo 大小调整 */
  margin-bottom: 10px;
}

.company-links ul,
.contact-info {
  line-height: 1.6;
}

.company-links ul li {
  margin: 5px 0;
}

.company-links ul li a {
  color: #fff;
  text-decoration: none;
}

.company-links ul li a:hover {
  text-decoration: underline;
}

.contact-info p {
  margin: 5px 0;
}

.contact-info a {
  color: #fff;
  text-decoration: none;
}

.contact-info a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  text-align: center;
  color: #748EA6;
  font-size: 12px;
}

.footer-bottom p {
  margin: 5px 0;
}

.footer-content{
  display: flex;
  justify-content: center;
  /*align-items: center;*/

}

.footer-content > div{
  width: 33.33%;
}
.company-links{
  text-align: center;
}
.company-links ul{
  list-style: none;
  padding: 0 30px;
  margin: 0;
}
.company-links ul li{
  margin: 0;
}

/* Download Section Styles */
.download-section {
  padding: 40px 0;
  background-color: #fff;
}

.download-title {
  text-align: center;
  margin-bottom: 20px;
}

.download-title h2 {
  font-size: 24px;
  margin: 0;
}

.download-title p {
  font-size: 14px;
  color: #666;
  margin: 5px 0 0;
}

.download-items {
  display: flex;
  /*flex-wrap: wrap;*/
  justify-content: center;
}

.download-item {
  background-color: #f9f9f9;
  border-radius: 8px;
  padding: 40px;
  width: calc(20% - 20px);
  margin-left: 10px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
}

.download-item img {
  width: 40px;
  height: 40px;
  /*margin-right: 20px;*/
}

.download-info {
  text-align: center;
}

.download-info h3 {
  font-size: 18px;
  margin: 0 0 5px;
}

.download-info p {
  font-size: 14px;
  color: #666;
  margin: 0 0 10px;
}

.download-btn {
  background-color: #3377FF;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 90px;
  cursor: pointer;
  font-size: 14px;

}

.download-btn:hover {
  background-color: #0056b3;
}

.android .download-info {
  width: 100%;
}

.progress-bar {
  background-color: #eaeaea;
  border-radius: 4px;
  height: 8px;
  margin: 10px 0;
  overflow: hidden;
}

.progress {
  background-color:#3377FF;
  height: 100%;
  width: 0;
  transition: width 0.3s ease;
}