/* base */
body,
ul,
p,
h1,
h2,
h3 {
    margin: 0;
}

body {
    font: 16px/1.5 system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: #333;
}

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

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

th,
td {
    word-break: break-all;
    word-wrap: break-word;
}

a {
    color: #265099;
    text-decoration: none;
}

a:hover {
    color: #3f85ff;
}

img {
    vertical-align: middle;
}

/* style */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #3f85ff;
    color: #fff;
}

.header a {
    color: #fff;
}

.header-search {
    display: flex;
}

.header-search input {
    padding: 5px 10px;
    border: none;
    border-radius: 5px 0 0 5px;
    background-color: #fff;
    outline: none;
    color: #666;
    font: inherit;
}

.header-search button {
    padding: 5px 10px;
    border: none;
    border-radius: 0 5px 5px 0;
    background-color: #f5f5f5;
    outline: none;
    color: #666;
    font: inherit;
    cursor: pointer;
}

.header-login {
    display: flex;
}

.header-login a+a {
    margin-left: 20px;
}

.main {
    padding: 20px;
}

.footer {
    padding: 20px;
    text-align: center;
    color: #aaa;
}

.category {
    display: flex;
    flex-wrap: wrap;
}

.category li {
    padding: 10px;
}

.category a {
    display: block;
    padding: 5px 10px;
    border-radius: 3px;
    background-color: #8b68ee;
    color: #fff;
}

.category a:hover {
    background-color: #6a5acc;
}

.file {
    width: 100%;
    margin: 0 auto;
}

.file th {
    text-align: left;
}

.file th,
.file td {
    padding: 10px;
    border-bottom: 1px solid #eaecee;
}

.file th:nth-child(n+2),
.file td:nth-child(n+2) {
    width: 90px;
    padding: 10px 30px;
    color: #555;
}

.file th:nth-child(3),
.file td:nth-child(3) {
    width: 160px;
}

.file-page {
    display: flex;
    color: #666;
}

.file-page {
    padding: 20px 10px 0;
}

.file-page>* {
    padding-right: 10px;
}

.download-info {
    padding: 20px 0;
}

.download-title {
    padding-bottom: 5px;
}

.download-desc {
    padding-bottom: 20px;
}