body {
    font-family: -apple-system-font,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif;
    color: #353535;
    font-size: 16px;
    background: #f6f8f9;
    line-height: 1.6;
}

:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #000;
}

::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #8590a6;
}

input:-ms-input-placeholder{
    color: #8590a6;
}

input::-webkit-input-placeholder{
    color: #8590a6;
}

.m-navbar {
    /*line-height: 2;*/
    -webkit-box-shadow: 0 1px 5px rgba(0,0,0,.1);
    -moz-box-shadow: 0 1px 5px rgba(0,0,0,.1);
    box-shadow: 0 1px 2px hsla(0,0%,59%,.3);
    padding: 0 1rem;
    height: 72px;
}

.bg-light {
    background-color: #fff !important;
}

.br-3px {
    border-radius: 3px;
}

.margintop-0 {
    margin-top: 0!important;
}

.margintop-1px {
    margin-top: 1px;
}

.margintop-2px {
    margin-top: 2px;
}

.margintop-3px {
    margin-top: 3px;
}

.margintop-5px {
    margin-top: 5px;
}

.margintop-10px {
    margin-top: 10px;
}

.margintop-15px {
    margin-top: 15px;
}

.margintop-20px {
    margin-top: 20px;
}

.mt-20 {
    margin-top: 20px;
}

.mt-10 {
    margin-top: 10px;
}

.margintop-30px {
    margin-top: 30px;
}

.margintop-40px {
    margin-top: 40px;
}

.margintop-80px {
    margin-top: 80px;
}

.marginleft-5px {
    margin-left: 5px;
}

.marginleft-10px {
    margin-left: 10px;
}

.marginleft-15px {
    margin-left: 15px;
}

.marginleft-20px {
    margin-left: 20px;
}

.marginleft-24px {
    margin-left: 24px;
}

.marginright-10px {
    margin-right: 10px;
}

.marginright-5px {
    margin-right: 5px;
}

.marginbottom-10px {
    margin-bottom: 10px;
}

.marginbottom-12px {
    margin-bottom: 12px;
}

.marginbottom-24px {
    margin-bottom: 24px;
}

.marginbottom-30px {
    margin-bottom: 30px;
}

.marginbottom-40px {
    margin-bottom: 40px;
}

.marginbottom-1rem {
    margin-bottom: 1rem;
}

.margintop-56px {
    margin-top: 56px;
}

.margintop-1rem {
    margin-top: 1rem;
}

.paddingleft-6px {
    padding-left: 6px;
}

.paddingright-5px {
    padding-right: 5px;
}

.card-title {
    margin-bottom: 0;
    font-weight: 600;
    line-height: 1.2;
    color: inherit;
}

.fs-12px {
    font-size: 12px;
}

.fs-13px {
    font-size: 13px;
}

.fs-14px {
    font-size: 14px;
}

.fs-15px {
    font-size: 15px;
}

.fs-16px {
    font-size: 16px;
}

.fs-18px {
    font-size: 18px;
}

.fs-20px {
    font-size: 20px;
}

.media-img {
    width: 48px;
    height: 48px;
}

.footer {
    padding-top: 20px;
    padding-bottom: 20px;
    color: #8590a6;
    font-size: 14px;
    text-align: center;
}

.footer p {
    margin-bottom: 0;
}

.footer a {
    color: #495057;
}

.media-left {
    display: table-cell;
    vertical-align: top;
    padding-right: 14px;
}

.media-body {
    word-break: break-all;
    display: table-cell;
    vertical-align: top;
}

.text-gray {
    color: #8590a6;
}

.gray-dark {
    color: #24292e;
}

.gray {
    color: #8590a6;
}

.red {
    color: #C20C0C;
}

.stress-color {
    color: #007bff;
}

.main-content {
    margin-top: 83px;
    /*padding: 20px 0;*/
}

.login {
    color: rgba(0, 0, 0, .5);
}

.login:hover {
    color: rgba(0, 0, 0, .7);
}

.login-image {
    width: 30px;
    height: 30px;
    margin-left: 1rem;
}

.list-group-item:last-child {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.badge-delete {
    background: #fff;
    color: #6c757d;
    border-radius: 100px;
}

.gray-a {
    color: #8590a6;
}

.gray-a:hover {
    text-decoration: none;
    color: #495057;
}

.blue-a {
    color: #175199;
}

.padding0 {
    padding: 0;
}

.paddingright0 {
    padding-right: 0;
}

.paddingleft0 {
    padding-left: 0;
}

.border0 {
    border: 0;
}

.search-submit {
    background: transparent;
    border: none;
    position: absolute;
    top: -0.5px;
    height: 100%;
    color: #838E95;
    padding-left: 2px;
    padding-right: 0;
    left: 10px;
    padding-top: 1px;
}

.form-group-search {
    position: relative;
}

.header-search {
    padding-left: 34px;
    font-size: 15px;
    border-radius: 2rem;
}

.login-image-a:before {
    content: "";
    position: absolute;
    top: 12px;
    right: 8px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid #8590a6;
}

.login-image-a {
    color: #fff;
}

.login-image-a:hover {
    color: #fff;
}

.m-login-image {
    margin-left: 0;
    margin-right: 20px;
}

.card-body ul li {
    margin-bottom: 10px;
}

.card-body ul li:last-child {
    margin-bottom: 0;
}

.vertical-center {
    margin: auto 0;
}

.border-bottom-0 {
    border-bottom: 0;
}

.tooltip-a {
    color: #8590a6;
}

.tooltip-a:hover {
    color: #8590a6;
}

.to-top {
    background: #fff;
    border-radius: 2px;
    width: 40px;
    height: 40px;
    box-shadow: 0 1px 3px rgba(26,26,26,.1);
    color: #8590a6;
    text-align: center;
    font-size: 14px;
    padding: 0;
    border: 0;
}

.to-top:hover {
    background: #d3d3d3;
}

.modal-close-btn {
    position: absolute;
    top: 8px;
    right: -60px;
    padding: 4px !important;
    border: 1px solid #fff !important;
    border-radius: 1.5rem;
}

.modal-close-icon {
    vertical-align: top;
    fill: #fff;
}

.modal-body-header {
    padding-top: 10px;
    text-align: center;
}

.modal-logo {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 15px;
}

.login-modal-header-slogan {
    font-size: 20px;
    margin-bottom: 38px;
}

.login-modal-footer {
    justify-content: center;
    background-color: #f6f6f6;
    height: 58px;
    border-top: 1px solid #ebebeb;
    font-size: 16px;
}

.btn-modal-login {
    margin-bottom: 28px;
}

.modal-register-a {
    color: #175199;
}

.paddingtop0 {
    padding-top: 0;
}

.paddingbottom0 {
    padding-bottom: 0;
}

.gray-nav-link {
    color: #8590a6;
}

.gray-nav-link:hover {
    color: #8590a6;
}

.grid-layout {
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
}

.grid-layout {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.grid-layout-cell {
    margin-top: 1.25rem;
}

.grid-layout >.grid-layout-cell {
    flex: 1 1 25%;
    min-width: 250px;
    width: auto;
}

.hot-tag-card-body ul li {
    margin-bottom: 20px;
}

.hot-question-item {
    line-height: 21px;
    color: #8590a6;
    font-size: 14px;
}

.hot-question-card-body .hot-question-item {
    margin-bottom: 10px;
}

.hot-question-card-body .hot-question-item:last-child {
    margin-bottom: 0;
}

a {
    color: #167bc2;
}

.m-navbar-brand {
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.m-avatar {
    width: 40px;
    height: 40px;
    margin-right: 5px;
}

.badge-zhihu {
    background: rgba(0,132,255,.1);
    color: #0084ff;
    padding: 0 12px;
    height: 33px;
    font-size: 13px;
    line-height: 33px;
    overflow: hidden;
    vertical-align: top;
    border-radius: 100px;
}

.badge-zhihu:hover {
    color: #0084ff !important;
    background-color: rgba(0,132,255,.15) !important;
}

.copy-right {
    font-size: 13px;
    max-width: 1260px;
    margin: 0 auto;
}

.copy-right strong {
    font-weight: normal;
}

.icn-new-container {
    position: relative;
}

.icn-new {
    position: absolute;
    display: inline-block;
    top: -2px;
    width: 14px;
    height: 10px;
    background: url(/static/images/new2.png) no-repeat 0 0;
    background-size: 100%;
    background-position: center;
}

.ad-container {
    margin: 1rem 0 1.5rem;
    padding: 0.25rem 1rem;
    border-inline-start-width: 0.3rem;
    border-inline-start-style: solid;
    border-radius: 0.5rem;
    color: inherit;
    border-color: #009400;
    background: #e6f6e6;
}

.ad-container-title {
    color: #003100;
    font-weight: 700;
    margin-top: 20px;
    padding-left: 25px;
    margin-bottom: 10px!important;
}

.ad-container-title:before {
    content: " ";
    position: absolute;
    left: 41px;
    width: 1.25em;
    height: 1.75em;
    background-position: left;
    background-repeat: no-repeat;
    background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23009400' d='M7.941 18c-.297-1.273-1.637-2.314-2.187-3a8 8 0 1 1 12.49.002c-.55.685-1.888 1.726-2.185 2.998H7.94zM16 20v1a2 2 0 0 1-2 2h-4a2 2 0 0 1-2-2v-1h8zm-3-9.995V6l-4.5 6.005H11v4l4.5-6H13z'/%3E%3C/svg%3E");
}