body {
  /* width: 1200px; */
  text-align: center;
  /* margin: 0 auto; */
}
h3 {
  font-weight: bold;
  font-size: 24px;
  color: #111111;
}
.caption {
  font-weight: 400;
  font-size: 14px;
  color: #444444;
}
.use {
  display: block;
  width: 200px;
  height: 56px;
  background: #4887FF;
  font-weight: 400;
  font-size: 24px;
  color: #FFFFFF;
  border-radius: 10px;
  line-height: 56px;
}
.use:hover {
  background: #256bec;
}
/* 首页 */
.meeting {
  width: 100%;
  height: 378px;
  background-image: url("../img/qywxCR/background.png");
  background-size: cover; /* 覆盖整个容器，可能会裁剪图片 */  
  background-position: center; /* 图片居中 */  
  background-repeat: no-repeat; /* 图片不重复 */  
  padding-top: 182px;
}
.meeting h1 {
  font-weight: bold;
  font-size: 48px;
  color: #F6FDFF;
}
.meeting p {
  font-weight: 400;
  font-size: 30px;
  color: #F6FDFF;
  margin-top: 47px;
}
.meeting .use {
  /* display: block;
  width: 200px;
  height: 56px;
  background: #4887FF;
  font-weight: 400;
  font-size: 24px;
  color: #FFFFFF;
  border-radius: 10px;
  line-height: 56px; */
  margin: 92px auto 0; 
} 

/* 内容 */
/* .content {
  width: 1200px;
  text-align: center;
  margin: 0 auto;
} */
/* 当前会议室管理面临的问题 */
.challenges {
  height: 610px;
  padding-top: 102px;
}
.challenges ul {
  width: 955px;
  margin-top: 53px;
  text-align: left;
  margin: 53px auto 0;
}
.challenges ul li {
  float: left;
  width: 369px;
}
.challenges ul li:first-of-type {
  background: url("../img/qywxCR/challenges.png") -0px -836px no-repeat;
  margin-right: 217px;
  margin-bottom: 76px;
  padding-top: 39px;
  height: 160px;
}
.challenges ul li:nth-of-type(2) {
  background: url("../img/qywxCR/challenges.png") -0px -438px no-repeat;
  margin-bottom: 76px;
  padding-top: 39px;
  height: 160px;
}
.challenges ul li:nth-of-type(3) {
  background: url("../img/qywxCR/challenges.png") -0px -239px no-repeat;
  margin-right: 217px;
  padding-top: 68px;
  height: 131px;
}
.challenges ul li:last-of-type {
  background: url("../img/qywxCR/challenges.png") -0px -637px no-repeat;
  padding-top: 68px;
  height: 131px;
}
.challenges li h3 {
  font-size: 18px;
  margin-left: 45px;
}
.challenges li p {
  width: 280px;
  margin-left: 45px;
  margin-top: 16px;
}
.challenges .illustration {
  background: url("../img/qywxCR/challenges.png") -0px -0px no-repeat;
  width: 298px;
  height:239px;
  margin-left: 42.5%;
  margin-top: 137px;
}

/* 专家之选，效率为先 */
.efficiency {
  height: 504px;
  background-color: #FBFCFF;
  padding-top: 90px;
}
.efficiency ul {
  width: 1200px;
  margin: 74px auto 0;
}
.efficiency ul li {
  float: left;
  width: 210px;
  height: 280px;
  background: #FFFFFF;
  transition: background-color 0.5s ease;
  cursor: pointer; /* 设置鼠标悬停时的指针形状为小手 */  
  box-shadow: 0px 0px 20px 0px rgba(106,137,229,0.1);
  border-radius: 10px;
  margin-right: 38px;
}
.efficiency ul li:hover {  
  background-color: rgba(0,0,0,0.1); /* 鼠标悬停时的背景颜色 */  
}  
.efficiency ul li:nth-of-type(2n) {
  margin-right: 37px;
}
.efficiency ul li:last-of-type {
  margin-right: 0;
}
.efficiency li .picture {
  width: 96px;
  height:96px;
  margin: 40px auto 0;
}
.efficiency li:first-of-type .picture {
  background: url("../img/qywxCR/efficiency.png") -0px -0px no-repeat;
}
.efficiency li:nth-of-type(2) .picture {
  background: url("../img/qywxCR/efficiency.png") -0px -288px no-repeat;
}
.efficiency li:nth-of-type(3) .picture {
  background: url("../img/qywxCR/efficiency.png") -0px -96px no-repeat;
}
.efficiency li:nth-of-type(4) .picture {
  background: url("../img/qywxCR/efficiency.png") -0px -384px no-repeat;
}
.efficiency li:last-of-type .picture {
  background: url("../img/qywxCR/efficiency.png") -0px -192px no-repeat;
}
.efficiency li h3 {
  font-size: 22px;
  margin-top: 25px;
  margin-bottom: 18px;
}
.efficiency li .caption {
  color: #666666;
}

/* 五步配置、简洁快速 */
.setup {
  position: relative;
  height: 702px;
  padding-top: 78px;
}
.setup .tabs {
  display: inline-block;
  /* text-align: center; */
  margin-top: 77px;
}
.setup .button {
  display: inline-block;
  width: 199px;
  vertical-align: top;
}
.setup .image {
  display: inline-block;
  width: 1000px;
  vertical-align: top;
}
 .setup .tab-content {  
  position: absolute; 
  visibility: hidden;
  opacity: 0;
  width: 1000px;
  height: 500px;
  border-radius: 10px;
  text-align: left;
  vertical-align: top;
  margin-top: -15px;
  margin-left: -15px;
  transition: opacity 1s ease-in-out;
}  
  
.setup .tab-content.active {  
  visibility:visible; 
  opacity: 1;
}
.setup .tab-link {
  position: relative;  
  width: 199px;
  height: 44px;
  background: #E8EEFF;
  border: none;
  border-radius: 22px 10px 10px 22px;
  margin-top: 10px;
  margin-left: 10px;
  text-align: left;
}
.setup .tab-link:first-of-type {
  margin-top: 0;
}
.setup .tab-link.active {
  margin-left: 0;
}
.setup .tab-link div {
  display: inline-block;
  font-weight: 400;
  font-size: 24px;
  color: #FFFFFF;
  font-style: italic;
  width: 44px;
  height: 44px;
  background:  rgba(78,147,255,0.5);
  border-radius: 10px;
  line-height: 44px;
  text-align: center;
}
.setup .tab-link.active div {
  background: #3365EE;
}
.setup .tab-link h3 {
  display: inline-block;
  font-weight: 400;
  font-size: 16px;
  color: #8DA9F6;
  margin-left: 16px;
  position: absolute;  
  top: 50%;  
  transform: translateY(-50%); 
}
.setup .tab-link.active h3 {
  color: #0254FE;
}
.setup .tab-content:first-of-type {
  background: url("../img/qywxCR/setup.png") -0px -1064px no-repeat;
}
.setup .tab-content:nth-of-type(2) {
  background: url("../img/qywxCR/setup.png") -0px -532px no-repeat;
}
.setup .tab-content:nth-of-type(3) {
  background: url("../img/qywxCR/setup.png") -0px -0px no-repeat;
}
.setup .tab-content:nth-of-type(4) {
  background: url("../img/qywxCR/setup.png") -0px -1596px no-repeat;
}
.setup .tab-content:last-of-type {
  background: url("../img/qywxCR/setup.png")  -0px -2128px no-repeat;
}

/* 一键预订，会议无忧 */
.reservation {
  height: 621px;
  background: #FCFCFF;
  padding-top: 59px;
}
.reservation ul {
  width: 1210px;
  margin: 137px auto 0;
}
.reservation ul li {
  float: left;
  width: 370px;
  margin-right: 50px;
  padding-top: 20px;
  padding-bottom: 20px;
  transition: background-color 0.5s ease;
  cursor: pointer; /* 设置鼠标悬停时的指针形状为小手 */  
}
.reservation ul li:last-of-type {
  margin-right: 0;
}
.reservation ul li:hover {  
  background-color: rgba(0,0,0,0.1);; /* 鼠标悬停时的背景颜色 */  
  border-radius: 10px;
}  
.reservation li div {
  margin: 47px auto 0;
}
.reservation li:first-of-type div  {
  background: url("../img/qywxCR/reservation.png") -0px -153px no-repeat;
  width: 253px;
  height:150px;
  margin-bottom: 31px;
}
.reservation li:nth-of-type(2) div {
  background: url("../img/qywxCR/reservation.png") -0px -0px no-repeat;
  width: 87px;
  height:153px;
  margin-bottom: 27px;
}
.reservation li:last-of-type div {
  background: url("../img/qywxCR/reservation.png") -0px -303px no-repeat;
  width: 206px;
  height:146px;
  margin-bottom: 34px;
}
.reservation li .caption {
  margin: 0 auto;
}
.reservation li:first-of-type .caption {
  width: 244px;
}
.reservation li:nth-of-type(2) .caption {
  width: 237px;
}
.reservation li:last-of-type .caption {
  width: 257px;
}

/* 创新预订，开启会议新纪元 */
.innovation {
  position: relative;
  height: 765px;
  padding-top: 78px;
}
.innovation .button {
  width: 1107px;
  margin: 64px auto 0;
}
.innovation .button .key-link {
  width: 157px;
  height: 44px;
  background: #E8EEFF;
  border-radius: 10px;
  font-weight: 400;
  font-size: 16px;
  color: #4E93FF;
  line-height: 44px;
  margin-right: 28px;
}
.innovation .button .key-link.active {
  background: #4E93FF;
  color: #FFFFFF;
}
.innovation .button .key-link:last-of-type {
  margin-right: 0;
}
.innovation .image .key-content {
  position: absolute;
  top: 60%; /* 向上移动自身高度的50% */  
  left: 50%; /* 向左移动自身宽度的50% */  
  transform: translate(-50%, -50%); /* 通过transform属性调整位置，使其完全居中 */ 
  visibility: hidden;
  opacity: 0;
  width: 1078px;
  height:567px;
  margin: 60px auto 0;
  transition: opacity 1s ease-in-out;
}
.innovation .image .key-content.active {
  visibility: visible;
  opacity: 1;
}
.innovation .image .key-content:first-of-type {
  background: url("../img/qywxCR/innovation.png") -0px -0px no-repeat;
}
.innovation .image .key-content:nth-of-type(2) {
  background: url("../img/qywxCR/innovation.png") -0px -2835px no-repeat;
}
.innovation .image .key-content:nth-of-type(3) {
  background: url("../img/qywxCR/innovation.png")  -0px -1134px no-repeat;
}
.innovation .image .key-content:nth-of-type(4) {
  background: url("../img/qywxCR/innovation.png") -0px -1701px no-repeat;
}
.innovation .image .key-content:nth-of-type(5) {
  background: url("../img/qywxCR/innovation.png") -0px -567px no-repeat;
}
.innovation .image .key-content:last-of-type {
  background: url("../img/qywxCR/innovation.png") -0px -2268px no-repeat;
}

/* 来自上百家客户的信赖 */
.customers {
  height: 512px;
  padding-top: 210px;
}
.customers .subtitle {
  margin: 25px auto;
}

/* 会议室预订管理——安心服务亮点 */
.highlights {
  height: 562px;
  padding-top: 78px;
  background: #FBFCFF;
}
.highlights .subtitle {
  margin: 25px auto 48px;
}
.highlights ul {
  width: 1200px;
  margin: 0 auto;
}
.highlights ul li {
  float: left;
  width: 320px;
  height: 313px;
  padding-top: 47px;
  background: #FFFFFF;
  transition: background-color 0.5s ease;
  cursor: pointer; /* 设置鼠标悬停时的指针形状为小手 */  
  box-shadow: 0px 0px 20px 0px rgba(106,137,229,0.1);
  border-radius: 10px;
  margin-right: 120px;
}
.highlights ul li:hover {  
  background-color: rgba(0,0,0,0.1);; /* 鼠标悬停时的背景颜色 */  
}  
.highlights ul li:last-of-type {
  margin-right: 0;
}
.highlights li .caption {
  margin-top: 18px;
}
.highlights li .graphic {
  margin: 50px auto 0;
}
.highlights li:first-of-type .graphic {
  margin-top: 25px;
  background: url("../img/qywxCR/highlights.png") -0px -0px no-repeat;
  width: 200px;
  height:200px;
}
.highlights li:nth-of-type(2) .graphic {
  background: url("../img/qywxCR/highlights.png") -0px -200px no-repeat;
  width: 200px;
  height:150px;
}
.highlights li:last-of-type .graphic {
  background: url("../img/qywxCR/highlights.png") -0px -350px no-repeat;
  width: 200px;
  height:150px;
}

/* 会议室预订——不止预订，更是信赖的承诺 */
.commitment {
  height: 247px;
  padding-top: 89px;
}
.commitment .use {
  margin: 82px auto 0;
}