body,
p {
    margin: 0;
}

body {
    background: var(--white);
}

* {
    box-sizing: border-box;
}

img,
a {
    display: block;
}

a,
a:hover,
a:link {
    text-decoration: none;
}

video {
    object-fit: fill !important;
    display: block;
    border: none;
}

input {
    outline: none;
}

.display {
    display: none !important;
}

.ma {
    margin: auto;
}

.main {
    width: 1170px;
}

:root {
    --white: #fff;
    --font: #323232;
    --color: #102d6d;
}

.re {
    position: relative;
}

.text-center {
    text-align: center;
}

.overflow {
    overflow: hidden;
}

.model {
    display: flex;
    border-bottom: 5px solid #f0f0f0;
    margin-bottom: 30px;
    padding-bottom: 30px;
}

.model:last-child{
    border-bottom: none;
}

.model .left,
.model .right {
    padding: 0 15px;
}

.model .left {
    width: 41.66666667%;
}

.model .right {
    width: 58.33333333%;
}

.model .left .title {
    font-size: 48px;
    font-weight: 700;
    color: var(--color);
}

.model .left .text{
    font-size: 17px;
    color: var(--font);
    font-weight: bold;
}

.model .left .line{
    width: 100%;
    height: 1px;
    background: rgba(0,0,0,.1);
    margin: 25px auto;
}

.pdf{
    background-image: url(../img/pdf.jpg);
    background-repeat: no-repeat;
    background-position: left center;
    height: 35px;
    line-height: 35px;
    padding-left: 45px;
    color: var(--font);
    font-size: 14px;
    font-weight: bold;
}

.model .left .pdf{
    margin-bottom: 15px;
}

.model .right .item{
    width: 100%;
    border-bottom: 2px solid rgb(248, 248, 248);
}

.model .right .item .top{
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color);
    font-weight: bold;
    cursor: pointer;
    padding: 15px 0;
    user-select: none;
}

.model .right .item .top .type{
    font-size: 17px;
}

.model .right .item .top i{
    font-size: 24px;
    font-weight: bold;
}

.model .right .item .hide .fa-angle-down,
.model .right .item .show .fa-angle-up{
    display: block;
}

.model .right .item .hide .fa-angle-up,
.model .right .item .show .fa-angle-down{
    display: none;
}

.model .right .item .bottom{
    font-size: 16px;
    color: var(--font);
    transition: all 0.25s linear;
    overflow: hidden;
}

.model .right .item .bottom .title{
    font-weight: bold;
    margin-bottom: 5px;
}

.model .right .pdf{
    margin-top: 10px;
}

@media screen and (max-width: 1170px) {
    .main {
        width: 970px;
    }
}

@media screen and (max-width: 970px) {
    .main {
        width: 768px;
    }
}

@media screen and (max-width: 500px) {
    .main {
        width: 100%;
    }

    .model {
        flex-direction: column;
    }

    .model .left,
    .model .right {
        width: 100%;
    }
}