html {
     /* width: 98.4375vw;  */
    margin: 0 auto;
    width: 98.4vw;
}
img {
    max-width: 100%;
}

    body {
      font-family: Arial, sans-serif;
      margin: 0;
      padding: 0;
    }

    
    header {
      background-color: white;
      padding: 0.5208vw 1.0417vw;
      display: flex;
      justify-content: space-between;
      align-items: center;
          z-index: 9;
    position: relative;
    }

    header img {
      height: 1.5625vw;
    }

    header nav a {
      color: #333;
      text-decoration: none;
      margin: 0 0.5208vw;
    }
    nav a.isActive {
        border-bottom: 0.1042vw solid #4ABAFF;
        display: inline-block;
        text-align: center;
    }


    
   .hero {
      background-color: #f8f9fa;
      padding: 2.6042vw 1.0417vw;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

 
   .hero p {
      font-size: 0.9375vw;
      color: #6c757d;
      margin: 0.5208vw 0 1.0417vw;
    }


    
   .vpn-what {
      padding: 2.6042vw 1.0417vw;
    }



   .vpn-what p {
      font-size: 0.9375vw;
      color: #6c757d;
      margin: 0;
      white-space: pre-wrap;
      word-wrap: break-word;
      width: 80%;
      word-break: keep-all;
      line-height: 1.7708vw;
    }



    


   .why-use h2 {
      font-size: 1.25vw;
      margin: 0;
    }

   .why-use p {
      font-size: 0.8333vw;
      margin: 0.5208vw 0;
    }


    
   .features {
      padding: 2.6042vw 1.0417vw;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
    }




   .feature h3 {
      font-size: 0.9375vw;
      margin: 0.5208vw 0;
    }

   .feature p {
      font-size: 0.7292vw;
      color: #6c757d;
      margin: 0;
    }

    
   .use-cases {
      padding: 2.6042vw 1.0417vw;
    }

   .use-cases h2 {
      font-size: 1.25vw;
      margin: 0 0 0.5208vw;
    }

   .use-cases a {
      background-color: #333;
      color: white;
      padding: 0.4167vw 0.8333vw;
      border-radius: 0.2083vw;
      text-decoration: none;
      margin: 0 0.5208vw 0.5208vw 0;
    }

  

    
   .brand-vision {
      padding: 2.6042vw 1.0417vw;
    }

   .brand-vision h2 {
      font-size: 1.25vw;
      margin: 0 0 0.5208vw;
    }

   .brand-vision p {
      font-size: 0.8333vw;
      color: #6c757d;
      margin: 0;
    }


   .logo span {
    font-size: 1.1458vw;
    line-height: 1.875vw;
    margin-left: 0.8333vw;
}
.logo {
  display: flex;
}
header nav {
    width: 70%;
    z-index: 9;
}

header nav a {
font-family: PingFang SC, PingFang SC;
font-weight: 400;
font-size: 0.8333vw;
color: #000000;
line-height: 2.3438vw;
text-align: left;
font-style: normal;
text-transform: none;
margin: 0 1.5625vw;
}
header a.login {
    background-color: #007bff;
    text-decoration: none;
    float: right;
    right: 0;
    top: 0;
    position: absolute;
    font-weight: 500;
    font-size: 0.8333vw;
    color: #FFFFFF;
    line-height: 0.8333vw;
    letter-spacing: 0.1563vw;
    padding: 1.1458vw 3.6458vw;
    z-index: 99;
}
section {
    margin: 0 auto;
    width: 72%;
}
section h1 {
    font-family: Alimama ShuHeiTi-Bold;
    font-weight: 700;
    font-size: 2.7083vw;
    width: 100%;
    line-height: 3.3333vw;
    font-style: normal;
    text-transform: none;
}
.hero {
    background-color: #ffffff;
    padding: 2.6042vw 1.0417vw;
    display: flex;
    align-items: center;
    flex-direction: column;
    text-align: center;
}
.hero div{
    z-index: 8;
}
.hero a {
    font-family: Alimama ShuHeiTi, Alimama ShuHeiTi;
    font-weight: 700;
    font-size: 1.0417vw;
    color: #333333;
    line-height: 2.3958vw;
    letter-spacing: 0.2083vw;
    text-align: left;
    padding: 0.625vw 4.1667vw;
    border: 0.0521vw solid #000;
    border-radius: 0.2604vw;
    font-style: normal;
    text-transform: none;
    text-decoration: none;
    margin-top: 1.7708vw;
}
.hero a:hover {
    color: #fff;
    background: #000;
}
.hero img {
    margin-top: -4.5833vw;
}
.hero p {
    font-size: 0.9375vw;
    color: #6c757d;
    margin: 0.5208vw 0 1.7708vw;
}
.vpn-what-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-image: url("../image/vpn_what_bg.png");
    padding: 0 5.2083vw;
}
.vpn-what h2 {
    line-height:1.7708vw;
    font-style: normal;
    font-size: 1.1458vw;
    text-transform: none;
    margin-bottom: 1.5625vw;
    margin-top: -1.5625vw;
}
.vpn-what img{
    margin-bottom:0.5208vw
}
.why-use img {
    width: 100%;
}
.why-use-content-text {
    position: absolute;
    display: flex;
    z-index: 99;
    top: 0;
    flex-direction: column;
    max-width: 36.4583vw;
    margin: 0 9%;
}

.why-use-content {
  position: relative;
}

section.why-use {
    color: white;
    padding: 2.6042vw 1.0417vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.why-use-content-text h1 {
    margin-top: 21%;
        margin-bottom: 0.8333vw;
}
.why-use-content-text span{
height: 2.1875vw;
    border-radius: 5.2083vw;
    outline: 0.0521vw solid rgba(255, 255, 255, 0.47);
    outline-style: outset;
    line-height: 2.1875vw;
    padding: 0 1.9792vw;
    margin-right: 2.0833vw;
    white-space: nowrap;
    padding-right: 3.1771vw;
  }
 .why-use-content-text span i {

    margin: 0 0.3125vw;
}
.why-use-content-text  .tag {
    display: flex;
        margin-bottom: 6.875vw;
}
.why-use-content-text p{

font-family: PingFang SC, PingFang SC;
font-weight: 400;
font-size: 0.9375vw;
color: #FFFFFF;
line-height: 1.6667vw;
text-align: left;
font-style: normal;
text-transform: none;
}
section.features {
    padding: 2.6042vw 1.0417vw;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    flex-direction: row;
    align-content: space-around;
    align-items: center;
}

.feature {
    width: 100%;
    position: relative;
    margin-top: 2.6042vw;
}
.feature-col {
    width: 47.5%;

}
.features h1 {
    text-align: center;
}
.features h3 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 600;
    font-size: 1.6667vw;
    line-height: 2.3958vw;
    font-style: normal;
    text-transform: none;
    padding: 0 7.5%;
    margin: 0;
    margin-bottom: 1.5625vw;
}
.features p {
font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 1.1458vw;
    line-height: 1.4583vw;
    font-style: normal;
    text-transform: none;
    margin: 0 7.5%;
    word-wrap: break-word;
    white-space: break-spaces;
    word-break: keep-all;
}
.feature-content-1 div,.feature-content-2 div {
    display: block;
    width: 80%;
}
.feature-content-1 {
    position: absolute;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    margin-bottom: 4.1667vw;
}
.feature-content-2 {
    position: absolute;
    bottom: 4.1667vw;
    display: flex;
    justify-content: flex-start;
    width: 88%;
    align-items: center;
    left: 12%;
}
section.use-cases {
    padding: 2.6042vw 1.0417vw;
    text-align: center;
    overflow: hidden;
    height: 33.8542vw;
}
.use-cases-menu {
    display: flex;
    justify-content: space-between;
}

.use-cases a {
    width: 22%;
    font-family: PingFang SC, PingFang SC;
    font-weight: 600;
    font-size: 1.1458vw;
    color: #000000;
    line-height: 1.6667vw;
    text-align: center;
    font-style: normal;
    text-transform: none;
    padding: 0.9375vw 0;
    border-radius: 2.0833vw;
    text-decoration: none;
    background-color: #F8F8F8;
}
.use-cases-content {
    position: relative;
    margin-top: 2.6042vw;
}
.use-cases-content img{
  width: 100%;
}
.use-cases-view {
    height: 29.4792vw;
    overflow: hidden;
    width: 100%;
}
.use-cases-content-text {
    position: absolute;
    top: 0;
    background: linear-gradient(87deg, rgba(0, 0, 0, 0.74) 0%, rgba(0, 0, 0, 0) 100%);
    max-width: 39%;
    height: 18.1771vw;
    padding: 8.75vw 36% 0 6%;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 0.9375vw;
    color: #FFFFFF;
    line-height: 1.6667vw;
    text-align: left;
    font-style: normal;
    text-transform: none;
    border-radius: 0.7292vw 0vw 0vw 0.7292vw;
}
section.brand-vision {
    text-align: center;
    padding: 0;
}

section.brand-vision p {
    width: 28.125vw;
    height: 5.8333vw;
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    line-height: 1.4583vw;
    text-align: center;
    font-style: normal;
    text-transform: none;
    word-wrap: break-word;
    margin: 0 auto;
    white-space: pre-wrap;
}
footer {
    background-image: url("../image/footer_bg.png");
    padding: 3.6458vw 15%;
    margin-top: -0.2604vw;
    z-index: 99;
    display: flex;
    position: relative;
    height: 13.5417vw;
    justify-content: space-between;
    color: #fff;
    text-align: left;
}
.footer-row {
    display: flex;
}

.footer-col {
    display: flex;
    flex-direction: column;
}
.footer-row .footer-col{
  margin-left: 5.2083vw;
}
.footer-logo img{
  width: 7.5vw;
}
.footer-logo span{
  font-size: 1.9792vw;
}
.footer-col p {
    font-family: PingFang SC, PingFang SC;
    font-weight: 600;
    font-size: 0.8333vw;
    color: #FFFFFF;
    line-height: 1.0417vw;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.footer-col p span{
    font-weight: 400;
}
.footer-col a {
    text-transform: none;
    text-decoration: none;
    padding: 0.5208vw 0;

font-family: PingFang SC, PingFang SC;
font-weight: 400;
font-size: 0.8333vw;
color: #B3B3B3;
line-height: 1.0938vw;
text-align: left;
font-style: normal;
text-transform: none;
}

.footer-col h6 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 600;
    font-size: 0.9375vw;
    color: #FFFFFF;
    line-height: 1.1979vw;
    text-align: left;
    font-style: normal;
    text-transform: none;
}
ul.lang-menu {
    display: none;
    width: 6.7708vw;
    position: absolute;
    z-index: 9;
    right: 0;
    top: 2.3438vw;
    align-items: center;
}
.changeLanguage {
    display: flex;
    position: relative;
    width: 6.7708vw;
    justify-content: center;
    height: 2.0833vw;
    z-index: 99;
    padding-top: 0.3646vw;
}
.changeLanguage:hover  ul.lang-menu {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    margin: 0;
    padding: 0;
    border: 0.0521vw solid #00000021;
    border-radius: 0 0 0.5208vw 0.5208vw;
    border-top: 0.1042vw solid #4abaff;
    overflow: hidden;
    background: #fff;
}
.lang-menu a {
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 0.8333vw;
    color: #000000;
    line-height: 2.3438vw;
    text-align: center;
    font-style: normal;
    text-transform: none;
    text-decoration: none;
    width: 100%;
}

ul.lang-menu a:hover {
    background: #333;
    color: #fff;
}

.use-cases-menu a.isActive {
    color: #fff;
    background: #000;
}