@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700&display=swap');

* {                     /*reset the default styles of HTML elements*/
    padding: 0;
    margin: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;     /* if set the width and height to 100%, the element will fill its parent container exactly without overflowing due to padding or border.  */
}

body {
    font-family: "Titillium Web", Arial, Tahoma, sans-serif;
}

/* styling chatbot */
.chatbot {
    width: 170px;
    height: 130px;
    position: fixed;
    bottom: 4%;
    right: 3%;
    z-index: 1;
}

.chat-video {
    height: 100px;
    width: 100px;
    border: 10px solid transparent;
    border-radius: 50%;
    overflow: hidden;    
    position: absolute;
    bottom: 0;
    right: 5%;
}

.chatbot .chat-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
}

.chatbot .chat-msg {
    padding: 13px;
    position: absolute;
    top: 15%;
    height: 30px;
    background-color: #fff;
    border-radius: 25px 25px 0 25px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* styling nav bar */
nav{
    position: fixed;
    top: 0;
    z-index: 2;
    font-family: 'Poppins', sans-serif;
    display: flex;
    height: 95px;
    width: 100%;
    background-color: transparent;
    align-items: center;
    justify-content: space-between;
    padding: 0 0 0 50px;
    flex-wrap: wrap;
    transition: background-color 0.2s ease-in-out;
}

nav.scrolled {
    background-color: #253177;

}  

.logo.scrolled {
    color: #fff;
}

nav ul li a.scrolled  {
    color: #f2f2f2;
}   


  nav .logo{
    color: rgb(16, 22, 47);
    transition: color 0.2s ease-in-out;
    font-size: 35px;
    font-weight: 600;   

  }
  nav ul{
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    position: absolute;
    right: 0;
    top: 30%;
  }

  nav ul li{
    margin: 0 30px;
    position: relative;
  }
  
  .search-form input[type="text"] {   /*attribute selector, using attribute to style, attribute = "value" */
      padding: 5px;                   /*为指定的attribute加上css*/
      border-radius: 5px;             /*exp: input[type="text"] targets all <input> elements that have a type attribute with a value of text.*/
      border: none;
      margin-right: 10px;
      outline: none;  /* Remove the default blue outline */
      margin-top: 5px;
  }
    
  .search-form button[type="submit"] {
      background-color: #4CAF50;
      color: white;    
      border: none;
      padding: 5px 10px;
      border-radius: 5px;
      cursor: pointer;
      transition: background-color 0.3s ease;
  }
  nav ul li a{
    color: rgb(16, 22, 47);
    font-size: 18px;
    font-weight: 500;
  }


  nav .menu-btn i{
    color: #fff;   
    font-size: 22px;
    cursor: pointer;
    display: none;
  }
  
  input[type="checkbox"]{
    display: none;
  }

.layer {
    width: 70px;
    height: 70px;
    transition: 0.3s;
    margin-left: 10px;
}

.layer i{
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 45%;
    border: 1px solid var(--c);
    border-radius: 6px;
    transition: 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
}

nav .text { 
    position: absolute;
    bottom: 0;
    opacity: 0;
    width: 100%;
    left: -30%;
    text-align: center;
    color: var(--c);        /* call var() to a customization --c */
    transition: 0.3s;
}

nav ul a:hover .text {
    opacity: 1;
}


nav li a:hover .layer {
    transform: rotate(-35deg) skew(20deg);
}

nav li a:hover .layer i:nth-child(1) {
    opacity: 0.2;
    transform: translate(0,0);
}

nav li a:hover .layer i:nth-child(2) {
    opacity: 0.4;
    transform: translate(5px,-5px);
}

nav li a:hover .layer i:nth-child(3) {
    opacity: 0.6;
    transform: translate(10px,-10px);
}

nav li a:hover .layer i:nth-child(4) {
    opacity: 0.8;
    transform: translate(15px,-15px);
}

nav li a:hover .layer i:nth-child(5) {
    opacity: 1.0;
    transform: translate(20px,-20px);
}

/* customize --c */
nav li:nth-child(1) .layer i, li:nth-child(1) .text {
    --c: #12b7f5;
}

nav li:nth-child(2) .layer i, li:nth-child(2) .text {
    --c: #2aae67;
}


nav li:nth-child(3) .layer i, li:nth-child(3) .text {
    --c: #e79115;
}


nav li:nth-child(4) .layer i, li:nth-child(4) .text {
    --c: #2075fd;
    
}


nav li:nth-child(5) .layer i, li:nth-child(5) .text {
    --c: #2d8dc5;
}

nav li:nth-child(7) .layer i, li:nth-child(7) .text {
    --c: rgb(198, 56, 56);
}



/* styling main body */
.user-det {
    position: relative;
    width: 100%;
    height: 700px;
    background-image: linear-gradient(to right top, #940054, #a1447b, #ab6d9e, #b693ba, #c6b8d1, #bebbce, #babcc9, #babdc2, #969fa7, #71838b, #4d686d, #2b4e4e);
}

.user-pic {
    width: 350px;
    height: 350px;
    border: 10px solid rgb(196, 49, 142);
    box-shadow: 0px 0px 20px rgb(0 0 0 / 50%);
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    left: 60%;
    top: 25%;
}


.user-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-text {
    position: absolute;
    top: 25%;
    left: 10%;
    width: 500px;
    height: 450px;
    line-height: 1.5;
}

.user-tetx h1 {
    color: #fff;
}

.user-text p {
    position: absolute;
    top: 25%;
    color: rgb(31, 23, 23);
}

.user-text span {
    color: rgb(145, 1, 1);
}

.user-text a {
    position: absolute;
    top: 57%;
    color: #fff;
    border: 2px solid transparent;
    padding: 7px 20px;
    border-radius: 20px;
    background-color: #461d50; 
    box-shadow: 0 0 6px rgb(0 0 0 / 50%);
}


.user-text button {
    position: absolute;
    top: 57%;
    left: 40%;
    color: #fff;
    border: 2px solid transparent;
    width: 140px;
    height: 40px;
    font-size: 16px;
    text-align: center;
    border-radius: 20px;
    background-color: rgb(104, 52, 156); 
    box-shadow: 0 0 6px rgb(0 0 0 / 50%);
}

.user-text button:hover, .user-text a:hover {
    cursor: pointer;
    filter: brightness(1.2);
}



/* styling contact user */
.white {
    width: 100%;
    position: relative;
    height: 1000px;
    background-image: linear-gradient(to bottom, #f0f0f0, #e3e2e4, #d5d5d9, #c8c7cd, #bbbac2, #b3b2c2, #aaabc1, #a0a4c1, #95a1cc, #879ed6, #739ce1, #559bec);
}

.white .text {
    width: 800px;
    text-align: center;
    height: 300px;
    position: absolute;
    left: 23%;
    top: 10%;
}

.white .text h1 {
    position: absolute;
    font-size: 44px;
    font-weight: 400;
    left: 25%;
}

.white .text p {
    position: absolute;
    top: 45%;
    left: 25%;
}

.white .circle {
    width: 600px;
    height: 550px;
    position: absolute;
    background-color: #fff;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    top: 33%;
    border-radius: 50%;
    left: 30%;
    text-align: center;
    backdrop-filter: blur(10px);
}

.circle form input[type="text"], input[type="email"], input[type="tel"], input[list="levels"] {
    border: none;
    border-bottom: 2px solid lightslategray;
    width: 300px;
    padding: 10px;
    outline: none;
    margin-bottom: 20px;
}

.circle form button {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 20px 2px 60px;
    cursor: pointer;
    width: 300px;
}

.circle h2 {
    margin-bottom: 30px;
    margin-top: 90px;
}

.circle form button:hover {
    filter: brightness(0.9);
}


/* styling city */
.city {
    position: relative;
    width: 100%;
    height: 700px;
    background-image: linear-gradient(to right top, #1f2337, #363b4d, #4f5464, #6a6f7c, #868b94, #9a9ea5, #aeb1b6, #c2c4c8, #d1d2d5, #e1e1e3, #f0f0f1, #ffffff);
}

.city-pic {
    position: absolute;
    top: 20%;
    left: 7%;
    width: 400px;
    height: 400px;
    border: 10px solid black;
    border-radius: 50%;
    overflow: hidden;
    cursor: pointer;
}

.city-pic img {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.city-content {
    width: 800px;
    height: 500px;
    position: absolute;
    left: 40%;
    top: 15%;
}

.city-content .email {
    position: absolute;
    left: 20%;
    top: 2%;
    cursor: pointer;
    text-decoration: underline;
}

.city-content .email:hover {
    text-decoration: none;
}

.city-content .email:active {
    color: white;
}

.city-content table {
    width: 100%;
    height: 400px;
    line-height: 1.5;
}

.city-content table td {
    width: 33.3%;
    padding-right: 20px;
}


.video-container {
    width: 350px;
    height: 350px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    left: 7%;
    top: 20%;
}
  
.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.city .city-content .branch {
    margin-top: 5px;
    text-decoration: underline;
    cursor: pointer;
}

.city .city-content .branch:hover {
    text-decoration: none;
}

.city .city-content .branch:active {
    color: white;
}

/* styling footer */
.footer-blue {
    position: relative; 
    background-image: linear-gradient(to right top, #940054, #a1447b, #ab6d9e, #b693ba, #c6b8d1, #bebbce, #babcc9, #babdc2, #969fa7, #71838b, #4d686d, #2b4e4e);
    width: 1074px;
    height: 770px;
    margin-left: 351px;
}

.gray {
    width: 300px;
    height: 300px;
    position: absolute;
    left: 0;
    top: 0;
    border: 1px solid rgb(225, 224, 224);
    background-color: lightgray;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-details {
    width: 700px;
    position: absolute;
    font-size: 14px;
    height: 700px;
    left: 32%;
    color: white;
    top: 7%;
}

.footer-details > p {
    margin-bottom: 40px;
    line-height: 23px;
}

.contact-method {
    margin-bottom: 30px;
    width: 400px;
    display: flex;
    justify-content: space-between;
}

.contact-method a {
    display: inline-block;
    width: 40px;
    height: 40px;
    margin: 0 10px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease-in-out;
}

.contact-method a:hover {
    transform: translateY(-5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.contact-method a:nth-child(1) {
    background-color: #3b5998;
}
  
.contact-method a:nth-child(2) {    
    background-color: #0077b5;
}

.contact-method a:nth-child(3) {
    background-color: #1da1f2;
}

.contact-method a:nth-child(4) {
    background-color: #e4405f;
}

.contact-method a i {
    line-height: 40px;
    display: flex;
    justify-content: center;
    text-align: center;

}

.footer-blue table {
    width: 700px;
    height: 400px;
    line-height: 30px;
}

.footer-details a {
    color:  white;
}

.footer-details table a {
    text-decoration: underline;
}

.footer-details table a:hover {
    text-decoration: none;
}

.footer-details a:active {
    color: darkblue;
}


.copyRight {
    position: absolute;
    width: 650px;
    bottom: 20px;
    display: flex;
    justify-content: space-between;

}

.privacy {
    cursor: pointer;
}