#app {
    position: relative;
}

.ks_condition {
    padding: 45px;
}

.ks_condition>img:nth-child(1) {
    width: 324px;
    height: 63px;
    margin: auto;
}

.condition_main {
    width: 1000px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.condition_main>img:nth-child(1) {
    width: 290px;
    height: 276px;
    animation: condition 3s linear infinite;
}

@keyframes condition {
    0% {
    transform: translateX(0);
    animation-timing-function: ease-in;
    opacity: 1;
  }
  24% {
    opacity: 1;
  }
  40% {
    transform: translateX(-26px);
    animation-timing-function: ease-in;
  }
  65% {
    transform: translateX(-13px);
    animation-timing-function: ease-in;
  }
  82% {
    transform: translateX(-6.5px);
    animation-timing-function: ease-in;
  }
  93% {
    transform: translateX(-4px);
    animation-timing-function: ease-in;
  }
  25%,
  55%,
  75%,
  87%,
  98% {
    transform: translateX(0px);
    animation-timing-function: ease-out;
  }
  100% {
    transform: translateX(0px);
    animation-timing-function: ease-out;
    opacity: 1;
  }
}

.condition_main>p {
    width: 700px;
    font-size: 20px;
    line-height: 36px;
}

.condition_main>p>span {
    color: red;
}

.ks_content {
    padding: 45px;
    background: #DFF7FF;
}

.ks_content>img:nth-child(1) {
    width: 324px;
    height: 105px;
    margin: auto;
}

.ks_content .button {
    width: 500px;
    margin: auto;
    display: flex;
    justify-content: space-around;
}

.ks_time {
    width: 1100px;
    height: 515px;
    margin: auto;
    margin-top: 50px;
}

.ks_time img {
    animation: time .8s linear;
}

@keyframes time {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(0);
    }
}

.ks_process {
    padding: 45px;
}

.ks_process>img:nth-child(1) {
    width: 504px;
    height: 65px;
    margin: auto;
}

.ks_process>img:nth-child(1) {
    width: 504px;
    height: 65px;
    margin: auto;
}

.ks_process>img:nth-child(2) {
    width: 1119px;
    height: 329px;
    margin: auto;
    margin-top: 45px;
    cursor: pointer;
}

.course {
    padding: 45px;
    background: #DFF7FF;
}

.course>img:nth-child(1) {
    width: 324px;
    height: 62px;
    margin: auto;
}

.course>img:nth-child(2) {
    width: 1110px;
    /*height: 845px;*/
    margin: auto;
    margin-top: 45px;
}

.teacher {
    padding: 45px;
}

.teacher>img:nth-child(1) {
    width: 342px;
    height: 62px;
    margin: auto;
}

.teacher>img:nth-child(2) {
    width: 1007px;
    height: 368px;
    margin: auto;
    transition: all 1s;
    transform: translateX(-100%);
}

.teacher>img:nth-child(3) {
    width: 952px;
    height: 412px;
    margin: auto;
    transition: all 1s;
    transform: translateX(100%);
}

.zs {
    padding: 45px;
}

.zs>img:nth-child(1) {
    width: 324px;
    height: 65px;
    margin: auto;
}

.zs>img:nth-child(2) {
    width: 1158px;
    height: 238px;
    margin: auto;
    margin-top: 45px;
    transition: all .5s;
}
.zs>img:nth-child(2):hover {
    transform: translateY(-20px);
    box-shadow: 5px 5px 10px 0px rgba(79, 95, 60, 0.5);
}


/* 按钮 */
.btn-53,
.btn-53 *,
.btn-53 :after,
.btn-53 :before,
.btn-53:after,
.btn-53:before {
    /* border: 0 solid; */
    box-sizing: border-box;
}

.btn-53 {
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: button;
    background: #47A5FF;
    background-image: none;
    color: #fff;
    cursor: pointer;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, sans-serif,
        Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
    font-size: 100%;
    line-height: 1.5;
    margin: 0;
    -webkit-mask-image: -webkit-radial-gradient(#000, #fff);
    padding: 0;
}

.btn-53:disabled {
    cursor: default;
}

.btn-53:-moz-focusring {
    outline: auto;
}

.btn-53 svg {
    display: block;
    vertical-align: middle;
}

.btn-53 [hidden] {
    display: none;
}

.btn-53 {
    /* border: 10px solid; */
    font-size: 25px;
    border-radius: 30px;
    box-sizing: border-box;
    display: block;
    font-weight: 900;
    overflow: hidden;
    padding: 10px 25px;
    position: relative;
    text-transform: uppercase;
}

.btn-53 .original {
    background: #DFF7FF;
    color: #000;
    display: grid;
    inset: 0;
    place-content: center;
    position: absolute;
    transition: transform 0.2s cubic-bezier(0.87, 0, 0.13, 1);
}

.btn-53:hover .original {
    transform: translateY(100%);
}

.btn-53 .letters {
    display: inline-flex;
}

.btn-53 span {
    opacity: 0;
    transform: translateY(-15px);
    transition: transform 0.2s cubic-bezier(0.87, 0, 0.13, 1), opacity 0.2s;
}

.btn-53 span:nth-child(2n) {
    transform: translateY(15px);
}

.btn-53:hover span {
    opacity: 1;
    transform: translateY(0);
}

.btn-53:hover span:nth-child(2) {
    transition-delay: 0.1s;
}

.btn-53:hover span:nth-child(3) {
    transition-delay: 0.2s;
}

.btn-53:hover span:nth-child(4) {
    transition-delay: 0.3s;
}

.btn-53:hover span:nth-child(5) {
    transition-delay: 0.4s;
}

.btn-53:hover span:nth-child(6) {
    transition-delay: 0.5s;
}

.active_btn {
    background: linear-gradient(270deg, #BAF7F9 0%, #609EFC 100%) !important;
    color: #ffffff !important;
}

.btn {
    width: 200px;
    margin: auto;
    margin-top: 90px;
}

.btn>button>div:nth-child(1) {
    background: linear-gradient(270deg, #BAF7F9 0%, #609EFC 100%) !important;
}

.btn>button {
    width: 200px;
}

.popup {
    height: 100%;
    position: fixed;
    top: 30%;
    right: 0;
    z-index: 99999999999;
    width: 340px;
    height: 500px;
    transform: translateX(100%);
    background-image: url('../img/popup3.jpg');
    background-size: 100% 100%;
    transition: all .5s;
    padding: 0 20px;
}

.inp_box {
    display: flex;
    background-color: #fff;
    align-items: center;
    padding: 10px 10px;
    border-radius: 30px;
    margin-top: 20px;
    overflow: hidden;
}
.inp_box>img {
    width: 30px;
    height: 30px;
}
.inp_box>input {
    height: 40px;
    border: none;
    margin-left: 10px;
    font-size: 20px;
}
.inp_btn {
    width: 300px;
    margin: auto;
    margin-top: 30px;
}
.inp_btn>button {
    width: 300px;
    height: 50px;
    border-radius: 20px;
    font-size: 20px;
    background: linear-gradient(270deg, #BAF7F9 0%, #609EFC 100%) !important;
    cursor: pointer;
}
.close {
    position: absolute;
    width: 40px;
    height: 40px;
    top: 0;
    right: 0;
    cursor: pointer;
}