/* 初始化样式 Reset CSS（推荐基础版） */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
    background-color: #fff;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: url(../img/background.jpg) no-repeat center center fixed;
    background-size: 100% 100%;
    height: auto;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
}

/* 自定义滚动条样式（可选） */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

.ux-flex {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.ux-flex-col {
    flex-direction: column;
}

.ux-flex-wrap {
    flex-wrap: wrap;
}

.ux-flex-nowrap {
    flex-wrap: nowrap;
}

.ux-col-center {
    align-items: center;
}

.ux-col-top {
    align-items: flex-start;
}

.ux-col-bottom {
    align-items: flex-end;
}

.ux-row-center {
    justify-content: center;
}

.ux-row-left {
    justify-content: flex-start;
}

.ux-row-right {
    justify-content: flex-end;
}

.ux-row-between {
    justify-content: space-between;
}

.ux-row-around {
    justify-content: space-around;
}

.main {
    width: 1160px;
    margin: 0 auto;
    padding-bottom: 100px;
}

.top {
    width: 100%;
    padding-top: 84px;

}

.logo {
    width: 316px;
    height: 226px;
    background: url(../img/logo.png) no-repeat 100% 100%;
}

.cooperate {
    width: 413px;
    height: 222px;
    margin-left: 70px;
    background: url(../img/cooperate.png) no-repeat 100% 100%;
}

.book {
    width: 184px;
    height: 240px;
    background: url(../img/book-b.png) no-repeat 100% 100%;

}

.handle {
    margin-top: 34px;
    width: 100%;
}

.handle-item {
    width: 570px;
    height: 175px;
    background: #FFFFFF;
    border-radius: 8px;
    padding: 0 54px 0 60px;
}

.submit {
    width: 74px;
    height: 74px;
    margin-right: 26px;
    background: url(../img/submit.png) no-repeat 100% 100%;
}

.manage {
    width: 74px;
    height: 74px;
    margin-right: 26px;
    background: url(../img/manage.png) no-repeat 100% 100%;
}

.handle-title {
    font-size: 28px;
    color: #000000;
    font-weight: bold;
    line-height: 39px;
}

.handle-en {
    font-weight: 400;
    font-size: 18px;
    color: rgba(49, 94, 81, 0.7);
    line-height: 25px;
}

.join {
    width: 49px;
    height: 49px;
    background: url(../img/join.png) no-repeat 100% 100%;
}

.bottom {
    margin-top: 50px;
    width: 100%;
    font-weight: 400;
    font-size: 12px;
    color: #276453;
    line-height: 20px;

}

.bottom-item {
    width: 530px;

}

.bottom-item1 {
    width: 440px;

}

.book-list {
    margin-top: 20px;
    width: 100%;
    min-height: 180px;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.05);
    border-radius: 8px 8px 8px 8px;
    padding: 0 45px 25px;
}

.book-title-row {
    width: 100%;
    height: 70px;
    padding-top: 6px;
}

.book-title-line {
    width: 5px;
    height: 19px;
    background: #019F3F;
}

.book-title {
    font-size: 22px;
    color: #019F3F;
    line-height: 31px;
    padding-left: 10px;
}

.list {
    position: relative;
    width: 100%;
    font-size: 16px;
    color: #000000;
    line-height: 22px;

}

.list-line {
    position: absolute;
    left: 50%;
    width: 1px;
    height: 100%;
    background-color: #E8E8E8;
}

.list-item {
    width: 500px;
    height: 40px;
}
/* .list-item:nth-child(2n + 1) {
  padding-left: 80px;
} */
  .list a:nth-child(2n + 1) .list-item {
  padding-left: 80px;
}
.list a:nth-child(2n + 1) .list-line {
  left: 80px;
}


.list-icon{
    width: 19px;
    height: 19px;
    background: url(../img/book.png) no-repeat 100% 100%;
    margin-bottom: 1px;
}
.list a:hover .list-icon{
    background: url(../img/book-a.png) no-repeat 100% 100%;
}
.list a:hover .list-item{
    color:#019F3F;
}

.loading-spinner {
  width: 30px;
  height: 30px;
  border: 3px solid #f2f2f2;           /* 外圈颜色 */
  border-top-color: #019F3F;        /* 转圈颜色 */
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 50px auto; /* 居中可选 */
}

@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}