* {
    margin: 0;
    padding: 0;
    box-sizing: border-box
}

html {
    font-size: calc(100vw / 7.5) !important;
    -webkit-text-size-adjust: 100%
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background: #f5f6f8
}

a {
    color: #3977ff;
    text-decoration: none
}

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

.header {
    display: flex;
    align-items: center;
    height: 48px;
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 0 12px;
    position: sticky;
    top: 0;
    z-index: 100
}

.header .hl {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    gap: 8px
}

.header .hl .home {
    flex-shrink: 0;
    display: block
}

.header .hl .home img {
    display: block;
    height: 24px
}

.header .hl .name {
    font-size: 15px;
    font-weight: 600;
    color: #111;
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.header .hr {
    display: flex;
    align-items: center;
    flex-shrink: 0
}

.header .hr .login {
    display: block
}

.header .hr .login img {
    display: block;
    width: 24px;
    height: 24px
}

.bread {
    padding: 10px 16px;
    font-size: 12px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 4px;
    background: #f5f6f8;
    overflow: hidden;
    white-space: nowrap;
    flex-wrap: nowrap
}

.bread a {
    color: #999;
    font-size: 12px;
    flex-shrink: 0
}

.bread .sep {
    color: #ddd;
    font-size: 10px;
    flex-shrink: 0
}

.bread .cur {
    color: #666;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0
}

.bread .nav-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: none;
    cursor: pointer;
    margin-left: auto;
    padding: 0
}

.bread .nav-btn img {
    width: 18px;
    height: 18px;
    display: block
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .4);
    z-index: 300
}

.nav-popup {
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    background: #fff;
    z-index: 301;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
    max-height: 60vh;
    overflow-y: auto
}

.nav-popup__inner {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    gap: 12px
}

.nav-popup__group {
    border-bottom: 1px solid #eee;
    padding-bottom: 8px
}

.nav-popup__group:last-child {
    border-bottom: none;
    padding-bottom: 0
}

.nav-popup__parent {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #111;
    margin-bottom: 6px;
    text-decoration: none
}

.nav-popup__children {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.nav-popup__child {
    display: inline-block;
    height: 30px;
    line-height: 30px;
    padding: 0 12px;
    font-size: 12px;
    color: #666;
    background: #f5f6f8;
    border-radius: 4px;
    text-decoration: none;
    white-space: nowrap
}

.nav-tabs {
    display: flex;
    background: #fff;
    padding: 0 12px;
    border-bottom: 1px solid #eee;
    overflow-x: auto;
    scrollbar-width: none
}

.nav-tabs::-webkit-scrollbar {
    display: none
}

.nav-tabs a {
    flex-shrink: 0;
    height: 42px;
    line-height: 42px;
    padding: 0 14px;
    font-size: 14px;
    color: #666;
    border-bottom: 2px solid transparent;
    white-space: nowrap
}

.nav-tabs a.on {
    color: #3977ff;
    border-bottom-color: #3977ff;
    font-weight: 600
}

.article {
    background: #fff;
    margin: 0 0 8px;
    padding: 16px
}

/* 主内容核心区：标题/摘要/正文/FAQ/标签，卡内与下方运营内容（责任编辑/推荐/延伸阅读等）分隔 */
.art-core {
    border-bottom: 1px dashed #eee;
    padding-bottom: 16px;
    margin-bottom: 16px
}

.author-qualification {
    white-space: pre-wrap;
    margin: 6px 0 0;
    color: #666;
    font-size: 12px;
    line-height: 1.6
}

.article h1 {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.35;
    color: #111;
    margin-bottom: 12px
}

.article .meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding-bottom: 12px;
    border-bottom: 1px solid #eee;
    font-size: 13px;
    color: #999
}

.article .meta .tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 3px;
    background: #e6f0ff;
    color: #3977ff;
    font-weight: 500
}

.article .meta .author {
    font-weight: 600;
    color: #111
}

.article .meta .dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #ddd
}

.summary {
    background: #f7f7fe;
    border-left: 4px solid #fd8123;
    border-radius: 6px;
    padding: 14px 16px;
    margin: 16px 0;
}

.summary .st {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #111
}

.summary .sc {
    font-size: 14px;
    color: #333;
    line-height: 1.7
}

.video-wrap {
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
    background: #000
}

.video-wrap video {
    width: 100%;
    display: block
}

.body {
    font-size: 16px;
    line-height: 1.75;
    color: #333;
    word-break: break-word;
    overflow-wrap: break-word
}

.body h2 {
    font-size: 19px;
    font-weight: 600;
    color: #111;
    margin-top: 24px;
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 4px solid #3977ff
}

.body h3 {
    font-size: 17px;
    font-weight: 600;
    color: #111;
    margin-top: 20px;
    margin-bottom: 10px
}

.body p {
    margin-bottom: 12px
}

.body img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 8px 0
}

.body ul, .body ol {
    padding-left: 20px;
    margin-bottom: 12px
}

.body li {
    margin-bottom: 6px;
    line-height: 1.7
}

.body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin: 12px 0;
    overflow-x: auto;
    display: block
}

.body th {
    background: #eee;
    color: #111;
    padding: 8px 10px;
    font-weight: 600;
    text-align: left
}

.body td {
    padding: 8px 10px;
    border-bottom: 1px solid #eee;
    color: #333;
    line-height: 1.5
}

.body a {
    color: #3977ff;
    text-decoration: underline
}

.tabs {
    margin: 16px 0;
    background: #f5f6f8;
    border-radius: 12px;
    padding: 16px
}

.tabs .tab-head {
    display: flex;
    gap: 8px;
    margin-bottom: 16px
}

.tabs .tab-head .tab {
    height: 34px;
    line-height: 34px;
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    color: #999;
    cursor: pointer;
    border: none;
    background: #fff;
    border-radius: 6px;
    transition: all .15s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .05)
}

.tabs .tab-head .tab.active {
    color: #fff;
    background: #3977ff;
    font-weight: 600
}

.tabs .tab-body {
    display: none
}

.tabs .tab-body.active {
    display: block !important
}

.tabs .item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    background: #fff;
    margin-bottom: 8px;
    transition: box-shadow .15s
}

.tabs .item:last-child {
    margin-bottom: 0
}

.tabs .item .icon {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0
}

.tabs .item .icon svg {
    width: 22px;
    height: 22px
}

.tabs .item .info {
    flex: 1;
    min-width: 0
}

.tabs .item .info .name {
    font-size: 14px;
    font-weight: 500;
    color: #111
}

.tabs .item .info .desc {
    font-size: 12px;
    color: #999;
    margin-top: 2px
}

.tabs .item .btn {
    height: 32px;
    line-height: 32px;
    padding: 0 14px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 16px;
    border: none;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0
}

.tabs .item .btn.pri {
    background: #3977ff;
    color: #fff
}

.tabs .item .btn.out {
    background: #fff;
    color: #3977ff;
    border: 1px solid #3977ff
}

.tiku {
    background: #fff;
    margin: 0 0 8px;
    padding: 16px
}

.tiku .tt {
    font-size: 15px;
    font-weight: 600;
    color: #111;
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 4px solid #3977ff
}

.tiku .grid {
    display: grid;
    grid-template-columns:repeat(2, 1fr);
    gap: 10px
}

.tiku .grid a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 6px;
    background: #f5f6f8;
    text-decoration: none
}

.tiku .grid a .ti {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0
}

.tiku .grid a .ti img {
    width: 24px;
    height: 24px
}

.tiku .grid a .tn {
    flex: 1;
    min-width: 0
}

.tiku .grid a .tn .nm {
    font-size: 13px;
    font-weight: 500;
    color: #111
}

.tiku .grid a .tn .ds {
    font-size: 11px;
    color: #999;
    margin-top: 2px
}

.rec-read {
    background: #fff;
    margin: 0 0 8px;
    padding: 16px
}

.rec-read .rt {
    font-size: 15px;
    font-weight: 600;
    color: #111;
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 4px solid #3977ff
}

.rec-read ul {
    list-style: none
}

.rec-read li {
    padding: 10px 0;
    border-bottom: 1px dashed #eee
}

.rec-read li:last-child {
    border-bottom: none
}

.rec-read a {
    font-size: 14px;
    color: #333;
    line-height: 1.5;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.mat-card {
    background: #fff;
    margin: 0 0 8px;
    padding: 16px
}

.mat-card .mat-title {
    font-size: 15px;
    font-weight: 600;
    color: #111;
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 4px solid #3977ff
}

.mat-card .mat-list {
            display: flex;
            flex-direction: column;
            gap: 10px
        }
        .free-course{background:#fff;margin:0 0 8px;padding:16px}
        .free-course__title{font-size:15px;font-weight:600;color:#111;margin-bottom:12px;padding-left:12px;border-left:4px solid #3977ff}
        .free-course__list{display:flex;flex-wrap:wrap;gap:10px}
        .fc-item{display:flex;width:100%;padding:10px;border-radius:8px;background:#f5f6f8;text-decoration:none;gap:12px}
        .fc-item .fc-img{width:120px;min-height:68px;border-radius:6px;overflow:hidden;flex-shrink:0;background:#e0e0e0;position:relative}
        .fc-item .fc-img img{width:100%;height:100%;object-fit:cover;display:block}
        .fc-item .fc-info{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:8px}
        .fc-item .fc-info .fc-name{font-size:14px;font-weight:500;color:#111;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
        .fc-item .fc-info .fc-btn span{display:inline-block;height:28px;line-height:28px;padding:0 16px;background:#3977ff;color:#fff;font-size:12px;font-weight:500;border-radius:14px}
        .tong-course{background:#fff;margin:0 0 8px;padding:16px}
        .tong-course__title{font-size:15px;font-weight:600;color:#111;margin-bottom:12px;padding-left:12px;border-left:4px solid #3977ff}
        .tong-course__list{display:flex;flex-direction:column;gap:10px}
        .tc-item{display:flex;gap:12px;padding:12px;border-radius:8px;background:#f5f6f8;text-decoration:none}
        .tc-item .tc-avatar{width:56px;height:56px;border-radius:50%;overflow:hidden;flex-shrink:0;background:#ddd;display:flex;align-items:flex-end;justify-content:center}
        .tc-item .tc-avatar img{width:46px;height:auto;display:block}
        .tc-item .tc-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
        .tc-item .tc-info .tc-name{font-size:14px;font-weight:500;color:#111;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
        .tc-item .tc-info .tc-tags{display:flex;gap:12px;font-size:12px;color:#999}
        .tc-item .tc-info .tc-btn{display:inline-block;width:auto;align-self:flex-start;height:28px;line-height:28px;padding:0 16px;background:#2590D7;color:#fff;font-size:12px;border-radius:14px;text-align:center}

.mat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: 8px;
    background: #f5f6f8
}

.mat-item .mi {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0
}

.mat-item .mi img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block
}

.mat-item .mn {
    flex: 1;
    min-width: 0
}

.mat-item .mn .nm {
    font-size: 13px;
    font-weight: 500;
    color: #111;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical
}

.mat-item .mn .md {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 3px
}

.mat-item .mn .md .tag-free {
    display: inline-block;
    height: 18px;
    line-height: 18px;
    padding: 0 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
    background: #ffebe6;
    color: #ff5722
}

.mat-item .mn .md .size {
    font-size: 11px;
    color: #999
}

.mat-item .mb {
    display: inline-block;
    height: 28px;
    line-height: 28px;
    padding: 0 12px;
    border-radius: 14px;
    background: #3977ff;
    color: #fff;
    font-size: 12px;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    text-align: center;
    border: none;
    cursor: pointer
}

.disclaimer {
    padding: 12px 16px;
    background: #fff3e0;
    font-size: 12px;
    color: #666;
    line-height: 1.7;
    margin: 0
}

.bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: #fff;
    box-shadow: 0 -1px 6px rgba(0, 0, 0, .08);
    display: flex;
    align-items: center;
    z-index: 100;
    padding: 0
}

.bottom a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 56px;
    text-decoration: none;
    color: #666;
    font-size: 10px;
    gap: 3px
}

.bottom a i {
    display: block;
    width: 22px;
    height: 22px;
    background-size: 152px auto;
    background-repeat: no-repeat;
    background-position: center
}

.bottom a p {
    font-size: 10px;
    line-height: 1;
    margin: 0;
    color: #666
}

.bottom a .icon_artN_qun {
    background-image: url(https://lstatic.xisaiwang.com/educity2/h5/images/courseDetail/art_icon.png);
    background-repeat: no-repeat;
    background-position: 0 0;
}

.bottom a .icon_artN_hao {
    background-image: url(https://lstatic.xisaiwang.com/educity2/h5/images/courseDetail/art_icon.png);
    background-repeat: no-repeat;
    background-position: -22px 0;
}

.bottom a .icon_artN_chat {
    background-image: url(https://lstatic.xisaiwang.com/educity2/h5/images/courseDetail/art_icon.png);
    background-repeat: no-repeat;
    background-position: -88px 0;
}

.bottom a .icon_artN_ziliao {
    background-image: url(https://lstatic.xisaiwang.com/educity2/h5/images/courseDetail/art_icon.png);
    background-repeat: no-repeat;
    background-position: -44px 0;
}

.bottom a .icon_artN_tk {
    background-image: url(https://lstatic.xisaiwang.com/educity2/h5/images/courseDetail/dp.png);
    background-repeat: no-repeat;
    background-size: 22px 22px;
}

.bottom .chat-btn {
    position: relative;
    width: 56px;
    height: 56px;
    background: #3A72FF;
    border-radius: 50%;
    color: #fff;
    margin-top: -20px;
    flex: none;
    padding-top: 6px;
    box-sizing: border-box
}

.bottom .chat-btn .custom-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px
}

.bottom .chat-btn i {
    width: 22px;
    height: 22px;
    background-size: 152px auto
}

.bottom .chat-btn p {
    color: #fff;
    font-size: 10px
}

.chat-pop__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .4);
    z-index: 200
}

.chat-pop__panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    border-radius: 12px;
    padding: 24px 20px 20px;
    z-index: 201;
    text-align: center;
    width: 280px
}

.chat-pop__close {
    position: absolute;
    top: 8px;
    right: 12px;
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    font-size: 20px;
    color: #999;
    cursor: pointer;
    line-height: 1
}

.chat-pop__qr {
    width: 180px;
    height: 180px;
    margin: 0 auto 12px;
    border-radius: 8px;
    overflow: hidden
}

.chat-pop__qr img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain
}

.chat-pop__text {
    font-size: 14px;
    color: #333
}

.share-overlay.open {
    opacity: 1;
    visibility: visible
}

.share-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 16px 16px 0 0;
    z-index: 201;
    transform: translateY(100%);
    transition: transform .25s ease;
    padding: 20px 16px 28px
}

.share-panel.open {
    transform: translateY(0)
}

.share-panel .st {
    font-size: 15px;
    font-weight: 600;
    color: #111;
    text-align: center;
    margin-bottom: 16px
}

.share-panel .sg {
    display: flex;
    justify-content: center;
    gap: 24px
}

.share-panel .sb {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    border: none;
    background: none;
    cursor: pointer;
    min-width: 64px
}

.share-panel .si {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px
}

.share-panel .si.wx {
    background: #e6ffef;
    color: #00b42a
}

.share-panel .si.link {
    background: #f7f7fe;
    color: #3977ff
}

.share-panel .sl {
    font-size: 12px;
    color: #666
}

.share-panel .cancel {
    display: block;
    width: 100%;
    height: 44px;
    line-height: 44px;
    text-align: center;
    font-size: 15px;
    color: #999;
    background: #eee;
    border: none;
    border-radius: 22px;
    cursor: pointer;
    margin-top: 16px
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s, visibility .2s
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible
}

.modal {
    position: relative;
    background: #fff;
    border-radius: 16px;
    padding: 28px 20px 20px;
    width: 300px;
    max-width: 90vw;
    text-align: center;
    box-shadow: 0 12px 48px rgba(0, 0, 0, .2);
    transform: translateY(12px);
    transition: transform .2s
}

.modal-overlay.open .modal {
    transform: translateY(0)
}

.modal .close {
    position: absolute;
    top: 8px;
    right: 12px;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    font-size: 22px;
    color: #999;
    cursor: pointer;
    line-height: 1
}

.modal .qr {
    width: 160px;
    height: 160px;
    margin: 0 auto 12px;
    border-radius: 12px;
    overflow: hidden
}

.modal .qr img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain
}

.modal .mt {
    font-size: 15px;
    color: #333;
    margin-bottom: 10px
}

.modal .mt .hl {
    font-weight: 600;
    color: #3977ff
}

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, #3977ff, #40c4ff);
    z-index: 999;
    transition: width .1s ease-out
}

.myadvertise {
    position: relative;
}

.adv_closeIcon {
    display: block !important;
    position: absolute;
    right: 5px;
    top: 5px;
    width: 14px;
    height: 14px;
    line-height: 14px;
    text-align: center;
    font-size: 10px !important;
    border-radius: 16px;
    background: rgba(0, 0, 0, .3);
    z-index: 99;
    color: #fff;
    font-family: Arial;
    -webkit-transform-origin-x: 0;
    -webkit-transform: scale(0.80);
    cursor: pointer;
}

.gg_wz {
    position: absolute;
    right: 10px;
    bottom: 0;
    width: 30px;
    height: 14px;
    line-height: 14px;
    text-align: center;
    font-size: 10px !important;
    background: rgba(0, 0, 0, .3);
    z-index: 2;
    color: #fff;
    -webkit-transform-origin-x: 0;
    -webkit-transform: scale(0.80);
}

.gg_sm {
    display: none !important;
    position: absolute;
    right: 0;
    bottom: 0;
    width: 14px;
    height: 14px;
    line-height: 14px;
    text-align: center;
    font-size: 10px !important;
    border-radius: 16px;
    background: rgba(0, 0, 0, .3);
    z-index: 99;
    color: #fff;
    font-family: Arial;
    -webkit-transform-origin-x: 0;
    -webkit-transform: scale(0.80);
    cursor: pointer;
}

.pmp_gf {
    position: relative;
    display: inline-flex;
    justify-content: flex-start;
    align-items: center;
    line-height: 20px;
    font-size: 13px;
    vertical-align: middle;
    color: #333;;
}

.pmp_gf_l {
    position: relative;
    width: auto;
    height: 28px;
    line-height: 14px;
    display: flex;
    font-size: 12px;
    color: #FE4801;
    background-color: #F3F3F3;
    margin-right: 5px;
    text-align: center;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
}

.pmp_gf_l::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 9px;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 6px solid #F3F3F3;
}

.pmp_gf_r {
    height: 28px;
    display: flex;
    line-height: 14px;
    width: 200px;
}

.pmp_gf_r span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

._xs-pop-wrap ._xs-pop-opa {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.denglu-div .divColumn {
    width: 7rem !important;
    box-sizing: border-box;
    padding: 0.5rem 0.3rem;
    background: #FFFFFF;
    border-radius: 0.2rem;
    position: relative;
}

.denglu-div .divColumn .x {
    position: absolute;
    right: 0.2rem;
    top: 0.2rem;
    width: 0.3rem;
    z-index: 999;
    height: 0.3rem;
}

.denglu-div .artN_pop_tips {
    background: #F6F6F6;
    border-radius: 0.1rem;
    padding: 0.2rem;
    box-sizing: border-box;
    margin-top: 0.2rem;
    font-size: 0.28rem;
}

.denglu-div .artN_pop_tips .red {
    color: #FF0000;
}

.denglu-div .loginMenu {
    margin-top: 0.2rem;
    margin-bottom: 0.2rem;
    display: flex;
    height: 0.8rem;
    align-items: center;
    padding-bottom: 0.3rem;
}

.denglu-div .loginMenu div {
    width: 50%;
    height: 0.8rem;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: normal;
    font-size: 0.34rem;
    color: #999999;
    cursor: pointer;
}

.denglu-div .loginMenu .loginCurrent {
    position: relative;
    height: 0.8rem;
    color: #3977FF !important;
    font-weight: bold !important;
    font-size: 0.34rem !important;
}

.denglu-div .loginMenu .loginCurrent:before {
    content: " ";
    position: absolute;
    bottom: 0;
    width: 0.5rem;
    height: 3px;
    background: #3977FF;
    border-radius: 2px;
}

.navInput {
    display: flex;
    width: 100%;
    margin-bottom: 0.2rem;
    align-items: flex-end;
    align-items: center;
    height: 0.8rem;
    border: 1px solid #D4D4D4;
    border-radius: 0.4rem;
    overflow: hidden;
}

.navInput .icon {
    width: 0.3rem;
    height: 0.3rem;
    margin-left: 0.3rem;
}

.navInput input {
    display: flex;
    text-indent: 5px;
    font-size: 0.3rem;
    color: #1F3D4D;
    height: 100%;
    width: 100%;
    border: 0;
    outline: none;
}

.navInput .textIcon {
    background: url(https://lstatic.xisaiwang.com/educity/h5/cmsng/img/video/icon_login_close@2x.png) no-repeat;
    background-size: 100% 100%;
    width: 0.34rem;
    height: 0.34rem;
    margin-bottom: 0.15rem;
}

.iptBox {
    display: flex;
    align-items: center;
    margin-bottom: 0.3rem;
}

.iptBox .navInput {
    margin-bottom: 0;
}

.dtInput input {
    width: 3rem !important;
}

.dtTxt {
    width: 2.8rem;
    height: 0.8rem;
    line-height: 0.8rem;
    text-align: center;
    margin-left: 0.2rem;
    background: #F6F6F6;
    border-radius: 0.4rem;
    font-size: 0.3rem;
    font-weight: 400;
    color: #999999;
    cursor: pointer;
}

.error {
    display: flex;
    font-size: 0.3rem;
    padding-bottom: 0.2rem;
    color: #f62322;
}

.loginBtn {
    box-sizing: border-box;
    width: 100%;
    display: flex;
}

.loginBtn span, .loginBtn a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 0.8rem;
    background-color: #3977FF;
    border-radius: 0.4rem;
    color: #FFFFFF;
    font-size: 0.3rem;
    font-weight: bold;
    cursor: pointer;
}

.must_read {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0.3rem 0 0;
}

.density label, .must_read label {
    display: flex;
    align-items: center;
}

.must_read label input[type=checkbox] {
    width: 0.3rem;
    height: 0.3rem;
    border: 1px solid #E1E1E1;
    border-radius: 50%;
    appearance: inherit;
    -moz-appearance: inherit;
    -webkit-appearance: inherit;
}

.must_read label input[type=checkbox]:checked {
    border: 0;
    background: url(https://lstatic.xisaiwang.com/educity2/pc/css/popLogin/image/blue_check.png) left top no-repeat;
    background-size: 100% 100%;
    width: 0.3rem;
    height: 0.3rem;
    appearance: inherit;
    -moz-appearance: inherit;
    -webkit-appearance: inherit;
}

.denglu-div .must_read label span {
    text-indent: 0;
    max-width: 6rem;
    padding-left: 0.15rem;
    box-sizing: border-box;
}

.must_read a {
    font-size: 0.24rem;
    color: #8FA7B3;
}

.must_read label span {
    font-size: 0.24rem;
    color: #8FA7B3;
    text-indent: 10px;
}

.hide {
    display: none !important;
}

.footer {
    flex-direction: column;
    width: 100%;
    padding: 0.65rem 0 0.82rem 0;
}
.footerBtn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding-bottom: 0.32rem;
}
.footerBtn .btn1 {
    background: #2590D7;
    margin-right: 0.25rem;
    color: #FFFFFF;
}
.footerBtn a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 1.81rem;
    height: 0.61rem;
    font-size: 0.24rem;
    color: #2590D7;
    border: 0.02rem solid #2590D7;
    border-radius: 0.05rem;
}
.footer_tele {
    text-align: center;
    padding: 0 0.3rem 0.3rem 0.3rem;
}
.tele_item {
    line-height: 0.62rem;
    font-size: 0.24rem;
    border-bottom: 1px dashed #B7DDF4;
    color: #666666;
}
.tele_item .tele_icon {
    display: inline-block;
    vertical-align: middle;
    width: 0.24rem;
    height: 0.24rem;
    background: url(https://lstatic.xisaiwang.com/educity/h5/cmsng/img/tele_icon.png) center no-repeat;
    background-size: 100% auto;
    margin-right: 0.15rem;
}
.tele_item .tele_bold {
    font-weight: bold;
    color: #666666;
    width: initial;
}
.footerNav {
    width: 100%;
    font-size: 0.22rem;
    color: #999999;
    line-height: 170%;
}
.footerNav div {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.footerNav a
{
    color: #999999;
}

.authority-source {
    margin: 16px 0;
    padding: 12px 16px;
    border: 1px solid #eee;
    border-radius: 8px;
    background: #fafafa;
}

#artContent img {
    display: inline-block;
}

#artContent table {
    width: 100% !important;
}

#artContent table>tbody>tr>td,
#artContent table>tbody>tr>th,
#artContent table>tfoot>tr>td,
#artContent table>tfoot>tr>th,
#artContent table>thead>tr>td,
#artContent table>thead>tr>th {
    border: 1px solid #ddd;
}

/* ===== Article Tags ===== */
.art-tags {
    margin: 16px 0;
    padding: 12px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.art-tags__list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.art-tags__item {
    /*display: inline-flex;*/
    /*align-items: center;*/
    /*gap: 3px;*/
    height: 32px;
    padding: 0 14px;
    border-radius: 16px;
    background: rgba(57, 119, 255, 0.08);
    border: 1px solid rgba(57, 119, 255, 0.2);
    color: #3977ff;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none!important;
    white-space: nowrap;
}

.art-tags__item:active {
    background: #3977ff;
    border-color: #3977ff;
    color: #fff;
}

.art-tags__item::before {
    content: '#';
    font-size: 12px;
    opacity: .6;
}

/* ===== FAQ (details/summary accordion) ===== */
#faq-section {
    margin: 16px 0;
}

#faq-section h2 {
    font-size: 18px;
    font-weight: 600;
    color: #111;
    margin: 0 0 12px;
    padding-left: 12px;
    border-left: 4px solid #3977ff;
}

.faq-card {
    border: 2px solid #3977ff;
    border-radius: 12px;
    padding: 4px 16px;
    background: #fff;
}

.faq-item {
    border-bottom: 1px solid #eee;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item summary,
.faq-item h3{
    list-style: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: #111;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
    padding: 12px 0;
    user-select: none;
}

.faq-item summary::-webkit-details-marker,
.faq-item h3::-webkit-details-marker{
    display: none;
}

.faq-item summary::after,
.faq-item h3::after{
    content: '＋';
    margin-left: auto;
    font-size: 18px;
    font-weight: 400;
    color: #999;
    transition: transform .2s;
    flex-shrink: 0;
}

.faq-item[open] summary::after,
.faq-item[open] h3::after{
    content: '－';
}

.faq-item summary .qb,
.faq-item h3 .qb{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: #3977ff;
    color: #fff;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

.faq-a {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    padding: 0 0 12px 30px;
    white-space: pre-wrap;
}

/* ===== Authority Box (E-E-A-T) ===== */
.authority-box {
    background: rgba(57, 119, 255, 0.06);
    border-radius: 12px;
    padding: 12px 16px;
    margin: 16px 0;
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.authority-box .al {
    font-weight: 600;
    color: #111;
}

.update-log {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #ddd;
    font-size: 13px;
    color: #999;
}

/* 资质说明（类别级 qualification 字段），保留多行换行 */
.author-qualification {
    white-space: pre-wrap;
    margin: 6px 0 0;
    font-size: 12px;
    color: #666;
    line-height: 1.6;
}