p,
h1,
h2,
h3,
h4,
div {
    margin: 0;
    padding: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    border: none;
    vertical-align: middle;
}

a {
    color: #333333;
    text-decoration: none;
}

i {
    font-style: normal;
}

input {
    margin: 0;
    padding: 0;
    outline: none;
}

bottom {
    outline: none;
}

ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

html {
    font-family: "microsoft yahei" !important;
}

body {
    font-size: 12px;
    background-color: #f5f5f5;
    font-family: "microsoft yahei" !important;
}

.maxbox {
    display: flex;
    /*width: 1120px;*/
    min-height: 500px;
    margin: 0 auto;
    margin-top: 20px;
    justify-content: space-between;
    background-color: transparent;
}

.get_materials_right {
    /*width: 360px;*/
    /*background-color: khaki;*/
}

.get_materials {
    width: 800px;
    /* background-color: skyblue; */
}

.materials_items {
    /* width: 100%; */
    display: flex;
    flex-direction: column;
}


/* .materials_items li {
    margin-bottom: 0.3px;
} */

.materials_items li .materials_category {
    color: white;
    font-size: 18px;
    background-color: #2668d8;
    line-height: 34px;
    display: inline-block;
    padding: 0 30px;
    opacity: 0.9;
}

.materials_folder {
    display: flex;
    flex-direction: column;
    margin-top: 10px;
    margin-bottom: 30px;
}

.materials_folder li {
    width: 100%;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px dashed #333;
    align-items: center;
    margin-top: 10px;
}

.folder_i,
.folder_i img {
    width: 30px;
    height: 22px;
}

.folder_title {
    color: #333;
    font-size: 16px;
    flex: 1;
    margin-left: 10px;
    line-height: 36px;
}

.folder_btn {
    color: white;
    padding: 6px 14px;
    background-color:#ec3a45;
    border-radius: 6px;
    font-size: 12px;
}

.folder_btn:hover {
    cursor: pointer;
    opacity: 0.9;
}

.dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    display: none;
    user-select: none;
}

.show_QR_code {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 340px;
    z-index: 523;
    box-shadow: 2px -3px 26px #c2c2c2;
    background-image: url("../materials_img/cloud.png");
    background-size: 100% 100%;
    border-radius: 10px;
    text-align: center;
}

.show_QR_code h2 {
    font-weight: 600;
    color: white;
    font-size: 24px;
    line-height: 100px;
}

.show_QR_code h3 {
    font-weight: 600;
    color: #333;
    font-size: 18px;
    text-align: center;
    margin-top: 1px;
}

.show_QR_code img {
    width: 140px;
    height: 140px;
    margin-top: 20px;
}