* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  padding-top: 40px;
}

header {
  background-color: rgba(255, 255, 255, 1);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}
.header {
  margin: auto;
  width: 70%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;

  color: rgba(16, 16, 16, 1);
  font-size: 14px;
}

.logo {
  margin-left: 120px;
  display: flex;
  align-items: center;
}

.logo .lg {
  width: 50px;
  height: 50px;
}
.logo .yops {
  height: 66px;
  margin-left: 10px;
}

.logo span {
  margin-left: 20px;
  font-size: 36px;
  font-family: SourceHanSansSC-regular;
  color: rgba(174, 174, 174, 1);
}

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

nav ul li {
  margin-right: 120px;
  font-size: 18px;
}

nav ul li a {
  text-decoration: none;
  color: rgba(16, 16, 16, 1);
  font-family: SourceHanSansSC-regular;
  line-height: 36px;
}

nav ul li a:hover {
  color: rgba(56, 148, 255, 1);
}
.hero {
  background-color: #c2e4f9;
  text-align: center;
  padding: 50px;
}

.hero h1 {
  margin-top: 30px;
  font-size: 60px;
  color: rgba(0, 98, 192, 0.92);
  margin-bottom: 40px;
}

.hero p {
  font-size: 36px;
  color: rgba(255, 255, 255, 1);
  margin-bottom: 40px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.btn-download,
.btn-contact {
  padding: 10px 30px;
  border: none;
  font-size: 20px;
  border-radius: 8px;
  cursor: pointer;
  background-color: white;
  color: #007bff;
  
  /* 霓虹光晕基础效果 */
  /* transition: all 0.3s ease;
  border: 2px solid #007bff; /* 新增边框 */
  text-shadow: 0 0 5px rgba(0, 123, 255, 0.3);
  box-shadow: 
    0 0 10px rgba(0, 123, 255, 0.2),
    inset 0 0 5px rgba(0, 123, 255, 0.1); */
}

.btn-download {
  margin-right: 100px;
}

.btn-download:hover,
.btn-contact:hover {
  background: #007bff;
  color: white;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
  box-shadow: 
    0 0 20px rgba(0, 123, 255, 0.6),
    inset 0 0 10px rgba(255, 255, 255, 0.2);
}
/* .btn-download {
  border-color: #28a745; 
  color: #28a745;
  text-shadow: 0 0 5px rgba(40, 167, 69, 0.3);
  box-shadow: 0 0 10px rgba(40, 167, 69, 0.2);
}
.btn-download:hover {
  background: #28a745; 
  box-shadow: 0 0 20px rgba(40, 167, 69, 0.6);
} */

.btn-contact {
  border-color: #007bff; 
  color: #007bff;
 
}
.btn-download:active{
  transform: translateY(2px); 
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.4); 
}

.video-container {
  position: relative;
  text-align: center;
  margin-bottom: 30px;
}

.video-container img {
  margin-top: 60px;
  border-radius: 15px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  width: 60%;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  background-color: rgba(128, 128, 128, 0.5); /* 灰色圆形，设置透明度 */
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s ease; /* 添加过渡效果 */
}

.play-button::after {
  content: "";
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 24px solid rgba(255, 255, 255, 0.8);
  margin-left: 8px;
}

.play-button:hover {
  transform: translate(-50%, -50%) scale(1.2);
}

.play-button:hover::after {
  border-left-color: rgba(0, 0, 255, 0.8);
}

.feature {
  width: 100%;
  /* margin-top: 80px; */
}
.feature-background {
  padding: 100px 0;
}
.feature-background:nth-child(even) {
  background-color: #eef5f9;
}
.feature-item {
  width: 80%;
  margin: auto;
  text-align: center;
  display: flex;
  flex-direction: row;
}

.feature-item .img {
  width: 50%;
}

.feature-item .msg {
  width: 50%;
  line-height: 40px;
  margin: auto;
}

.feature-item img {
  height: 400px;
  margin-bottom: 20px;
}

.feature-item h3 {
  color: #0099ff;
  font-size: 50px;
  margin-bottom: 25px;
}

.feature-item p {
  width: 70%;
  margin: auto;
  font-family: "宋体";
  font-size: 20px;
  line-height: 30px;
}

.feature-item button {
  margin-top: 80px;
  padding: 14px 50px;
  font-size: 18px;
  border: 2px solid #007bff;
  border-radius: 5px;
  background: transparent;
  color: #007bff;
  cursor: pointer;

  /* 霓虹效果 */
  transition: all 0.3s ease;
  text-shadow: 0 0 2px rgba(0, 123, 255, 0.3);
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.2), inset 0 0 5px rgba(0, 123, 255, 0.1);
}

.feature-item button:hover {
  background: #007bff;
  color: white;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 20px rgba(0, 123, 255, 0.6), inset 0 0 20px rgba(255, 255, 255, 0.2);
}
.feature-item button:active {
  transform: translateY(2px); 
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.4); 
}

/* 在线客服 */
.custom-service {
  position: fixed;
  z-index: 1000;
  top: calc(100vh - 35vh);
  right: 10px;
}
.custom-service img {
  width: 70px;
  cursor: pointer; /* 让鼠标悬停时变成手型 */
}
.chat-widget {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transition: opacity 0.3s ease, visibility 0.3s, transform 0.2s ease;
  padding: 5px;
  position: fixed;
  top: calc(100vh - 29vh);
  right: 70px;
  width: 150px;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  background-color: #dbf1ff;
  z-index: 1000;
}
.custom-service:hover + .chat-widget,
.custom-service:hover ~ .chat-widget {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.qr-code {
  width: 100%;
  height: auto;
  padding: 0 10px;
}
.btn-contact {
  position: relative;
  display: inline-block;
}
.btn-contact:hover #qrCodePopup {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

/* 调整弹出框位置 */
#qrCodePopup {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transition: opacity 0.3s ease, visibility 0.3s, transform 0.2s ease;
  position: absolute;
  z-index: 1000;
  border: 1px solid #ccc;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  background-color: white;
  right: -172px;
  top: 100%;
  margin-top: 5px;
  padding: 10px;
  width: 180px;
  height: 180px;
}

#qrCodePopup img {
  width: 100%;
}

.chat-footer {
  text-align: center;
  padding: 5px;
  font-size: 12px;
  font-family: "宋体";
}

.close-button {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 20px;
  height: 20px;
  background-color: #ccc;
  text-align: center;
  line-height: 20px;
  border-radius: 50%;
  cursor: pointer;
}

.btn-wrapper {
  display: flex;
  justify-content: center;
}

.btn-wrapper .contact {
  position: relative;
}

#btn-contact-qrcode {
  position: absolute;
  left: 130px;
  top: 50px;
  z-index: 6;
  background-color: white;
  padding: 10px;
  z-index: 1000;
  border: 1px solid #ccc;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
  display: none;
}

#btn-contact-qrcode img {
  width: 300px;
}

.links-items {
  display: flex;
  flex-direction: column;
  align-items: center;
}