.banner {
    position: relative;
}

.banner>img {
    width: 100%;
    display: block;
}

.ltsqjl {
    padding: var(--pad100);
    background-color: var(--bgcolor);
}

.banmain {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    margin: 0 auto;
    transform: translateY(-50%);
}

.banmain .container {
    text-align: center;
}

.banmain p {
    color: #fff;
}

.banmain p:nth-child(1) {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 18px;
}

.banmain p:nth-child(2) {
    max-width: 760px;
    margin: 0 auto;
    line-height: 1.8;
    font-size: 16px;
}

.ltvideo {
    padding: 68px 0 98px;
    background-color: #f3f5f8;
}

.ltvideohead {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    margin-bottom: 42px;
}

.ltvideohead>p {
    font-size: 30px;
    font-weight: 700;
    color: var(--titleColor);
    white-space: nowrap;
}

.ltvideosearch {
    width: 72%;
    display: flex;
    align-items: center;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(36, 75, 168, .06);
}

.ltvideosearch input {
    flex: 1;
    height: 46px;
    border: none;
    background-color: #fff;
    padding: 0 18px;
    font-size: 14px;
}

.ltvideosearch input::placeholder {
    color: #afb7c5;
}

.ltvideosearch button {
    width: 64px;
    height: 46px;
    border: none;
    background-color: var(--primary);
    cursor: pointer;
}

.ltvideosearch button span {
    color: #fff;
    font-size: 18px;
}

.ltvideomain {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.ltvideofilter {
    width: 26%;
}

.ltvideofilterinner {
    background-color: #fff;
    border-radius: 14px;
    padding: 22px 18px 26px;
    box-shadow: 0 16px 36px rgba(16, 42, 99, .05);
}

.ltvideofiltersub {
    font-size: 12px;
    color: #a2abb8;
    margin-bottom: 16px;
}

.ltvideofiltergroup {
    padding-top: 22px;
    margin-top: 22px;
    border-top: 1px solid #eef1f5;
}

.ltvideofiltergroup:first-of-type {
    padding-top: 0;
    margin-top: 0;
    border-top: none;
}

.ltvideofiltertitle {
    position: relative;
    display: block;
    width: 100%;
    padding: 0 0 14px 14px;
    font-size: 24px;
    line-height: 1.3;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.ltvideofiltertitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 2px;
    bottom: 16px;
    width: 3px;
    background-color: var(--primary);
}

.ltvideofiltertitle::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background-color: #e5e8ef;
}

.ltvideofiltergroup li {
    margin-bottom: 2px;
}

.ltvideofiltergroup li:last-child {
    margin-bottom: 0;
}

.ltvideofiltergroup li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
    padding: 15px 12px;
    border-radius: 4px;
    font-size: 14px;
    color: #333;
    line-height: 1.5;
}

/* 预留对勾位，保证选中/未选中文字左对齐 */
.ltvideofiltergroup li > a::before {
    content: '';
    display: block;
    width: 14px;
    flex-shrink: 0;
    font-size: 14px;
    line-height: 1;
    text-align: center;
}

.ltvideofiltergroup li span {
    flex: 1;
    min-width: 0;
    line-height: 1.5;
    font-size: 18px;
    color: inherit;
}

.ltvideofiltergroup li em {
    font-style: normal;
    color: #333;
    flex-shrink: 0;
}

.ltvideofiltergroup li.active > a,
.ltvideofiltergroup li > a:hover {
    background-color: #E6EFFF;
    color: #333;
}

.ltvideofiltergroup li.active > a::before {
    content: '\2713';
    color: #333;
}

.ltvideofiltergroup li.active > a em,
.ltvideofiltergroup li > a:hover em {
    color: #333;
}

/* 二级分类 */
.ltvideocat-sub {
    margin: 2px 0 6px;
    padding: 0;
}

.ltvideocat-sub li > a {
    padding-left: 28px;
    font-size: 14px;
}

.ltvideocat-sub li span {
    font-size: 16px;
}

.ltvideocat-parent.has-active-child > a {
    color: var(--primary);
}

.ltvideolistwrap {
    flex: 1;
}

.ltvideotools {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 12px;
    padding: 8px 4px;
}

.ltvideosort {
    display: flex;
    align-items: center;
    gap: 14px;
}

.ltvideosort p,
.ltvideoresult p {
    font-size: 13px;
    color: #7d8797;
}

.ltvideoselect {
    position: relative;
    width: 110px;
}

.ltvideoselect::after {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-right: 1px solid #7f8898;
    border-bottom: 1px solid #7f8898;
    transform: translateY(-70%) rotate(45deg);
    pointer-events: none;
}

.ltvideoselect select {
    width: 100%;
    height: 38px;
    border: 1px solid #cdd5e2;
    border-radius: 4px;
    padding: 0 34px 0 14px;
    appearance: none;
    background-color: #fff;
    font-size: 14px;
}

.ltvideoresult {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ltvideoresult a span {
    font-size: 12px;
    color: #95a0b2;
}

.ltvideolist {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ltvideolist li a {
    background-color: #fff;
    border-radius: 14px;
    box-shadow: 0 14px 34px rgba(16, 42, 99, .06);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: box-shadow .35s ease, transform .35s ease;
}

.ltvideolist li:hover a {
    box-shadow: 0 8px 14px rgba(51, 120, 255, .3);
    transform: translateY(-4px);
}

.ltvideolist li:hover .ltvideocardthumb .img img {
    transform: scale(1.06);
}

.ltvideolist li:hover .ltvideocardtitle {
    color: var(--primary);
}

.ltvideocardthumb {
    width: 31%;
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
}

.ltvideocardthumb .img {
    padding-top: 55%;
}

.ltvideocardthumb .img img {
    transition: transform .4s ease;
}

.ltvideocardthumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(12, 24, 54, .14);
    z-index: 1;
}

.ltvideocardthumb .play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.ltvideocardthumb .play img {
    height: 54px;
}

.ltvideocardmain {
    flex: 1;
    min-width: 0;
}

.ltvideocardtitle {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.45;
}

.ltvideocarddesc {
    margin-top: 14px;
    color: #687284;
    line-height: 1.9;
    font-size: 14px;
}

.ltvideocardmeta {
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.ltvideocardmeta p {
    font-size: 13px;
    color: #8a94a6;
}

.ltvideocardmeta span {
    padding: 3px 8px;
    background-color: #edf3ff;
    color: var(--primary);
    font-size: 12px;
    border-radius: 4px;
    line-height: 1.4;
}

.ltvideoplay {
    padding:var(--pad100);
    background-color: #f6f6f7;
}

.ltvideoplayhero,
.ltplaypanel {
    background-color: #fff;
    border-radius: 14px;
    box-shadow: 0 16px 36px rgba(16, 42, 99, .05);
}

.ltvideoplayhero {
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 22px;
}

.ltvideoplaycover {
    width: 360px;
    flex-shrink: 0;
    height:250px;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.ltvideoplaycover.has-video::before {
    display: none;
}

.ltvideoplaycover .img {
    padding-top: 58%;
}

.ltvideoplaycover::before,
.ltplayaboutthumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(12, 24, 54, .14);
    z-index: 1;
}

.ltvideoplaycover .play,
.ltplayaboutthumb .play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.ltvideoplaycover .play img {
    height: 58px;
}

.ltvideoplayintro {
    flex: 1;
    min-width: 0;
}

.ltvideoplaytitle {
    font-size: 22px;
    font-weight: 700;
    color: var(--titleColor);
    line-height: 1.45;
}

.ltvideoplayjoin,
.ltplayprimarybtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 112px;
    height: 42px;
    padding: 0 18px;
    border-radius: 4px;
    background-color: var(--primary);
    color: #fff;
    font-size: 19px;
}

.ltvideoplayjoin {
    margin-top: 26px;
}

.ltcourse {
    align-items: stretch;
    gap: 28px;
    padding: 22px;
}

.ltcourse-player {
    position: relative;
    flex: 0 0 42%;
    width: 42%;
    min-width: 0;
    min-height: 240px;
    border-radius: 12px;
    overflow: hidden;
    background: #0e1a33;
}

.ltcourse-poster,
.ltcourse-player video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ltcourse-player video {
    display: none;
    background: #000;
}

.ltcourse-player.is-playing .ltcourse-mask {
    display: none;
}

.ltcourse-player.is-playing video {
    display: block;
}

.ltcourse-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(8, 28, 72, .72) 0%, rgba(8, 28, 72, .28) 58%, rgba(8, 28, 72, .08) 100%);
}

.ltcourse-mask-text {
    position: absolute;
    left: 28px;
    right: 28px;
    top: 36px;
    color: #fff;
}

.ltcourse-mask-text p {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.35;
}

.ltcourse-mask-text span {
    display: block;
    margin-top: 10px;
    max-width: 280px;
    font-size: 13px;
    line-height: 1.7;
    opacity: .92;
}

.ltcourse-play {
    position: absolute;
    left: 50%;
    top: 46%;
    width: 64px;
    height: 64px;
    margin: -32px 0 0 -32px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .92);
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
}

.ltcourse-play::before {
    content: '';
    position: absolute;
    left: 26px;
    top: 20px;
    border-style: solid;
    border-width: 12px 0 12px 18px;
    border-color: transparent transparent transparent var(--primary);
}

.ltcourse-bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 36px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, .35);
    color: #fff;
    font-size: 12px;
}

.ltcourse-bar-tools {
    width: 72px;
    height: 14px;
    background: linear-gradient(90deg, transparent 0 18px, #fff 18px 20px, transparent 20px 34px, #fff 34px 48px, transparent 48px 58px, #fff 58px 72px);
    opacity: .9;
}

.ltcourse-side {
    flex: 0.9;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    padding: 8px 8px 4px 0;
}

.ltcourse-title {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.35;
    color: #1a1a1a;
}

.ltcourse-desc {
    margin: 12px 0 0;
    color: #8b93a1;
    font-size: 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ltcourse-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.ltcourse-tags span {
    padding: 4px 10px;
    border-radius: 4px;
    background: #eef3fb;
    color: var(--primary);
    font-size: 13px;
}

.ltcourse-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
    color: #8b93a1;
    font-size: 13px;
}

.ltcourse-author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 22px;
}

.ltcourse-author i {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-style: normal;
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ltcourse-author strong {
    display: block;
    font-size: 16px;
    color: #222;
}

.ltcourse-author span {
    display: block;
    margin-top: 2px;
    color: #8b93a1;
    font-size: 13px;
}

.ltcourse-actions {
    display: flex;
    gap: 12px;
    margin-top: auto;
    padding-top: 22px;
}

.ltcourse-start {
    height: 42px;
    padding: 0 22px;
    border-radius: 6px;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
}

.ltvideoplaybody {
    margin-top: 22px;
    display: flex;
    align-items: flex-start;
    gap: 22px;
}

.ltvideoplayleft {
    flex: 1;
    min-width: 0;
}

.ltvideoplayright {
    width: 340px;
    flex-shrink: 0;
}

.ltplaypanel {
    padding: 18px 20px 14px;
}

.ltplaydesc {
    color: #727b8a;
    font-size: 14px;
    line-height: 2;
}

.ltplaysection {
    margin-top: 8px;
}

.ltplaysectionhead {
    padding-bottom: 16px;
    border-bottom: 1px solid #e8edf4;
}

.ltplaysectionhead p {
    position: relative;
    padding-left: 16px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.4;
}

.ltplaysectionhead p::before {
    content: '';
    position: absolute;
    left: 0;
    top: 2px;
    bottom: 2px;
    width: 3px;
    background-color: var(--primary);
}

.ltplaymodulelist {
    counter-reset: lesson;
}

.ltplaymodulelist li {
    margin-bottom: 12px;
    border: 1px solid #e6eef8;
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}

.ltplaymodulelist li:last-child {
    border-bottom: 1px solid #e8edf4;
}

.ltplay-no {
    counter-increment: lesson;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: #eef4ff;
    color: var(--primary);
    font-weight: 700;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ltplay-no::before {
    content: counter(lesson, decimal-leading-zero);
}

.ltplay-time {
    flex-shrink: 0;
    color: #8b93a1;
    font-style: normal;
    font-size: 14px;
}

.ltplay-time::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 6px;
    vertical-align: -2px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa6b8' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 7v5l3 2'/%3E%3C/svg%3E") center / contain no-repeat;
}

.ltplay-arrow {
    flex-shrink: 0;
    color: #9aa6b8 !important;
    font-size: 14px;
    transition: transform .2s ease;
}

.ltplay-arrow.is-open {
    transform: rotate(180deg);
}

.ltplaymodulehead {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    user-select: none;
}

.ltplaymodulehead:hover p span {
    color: var(--primary);
}

.ltplaymodulelist li .ltplaymodulebody {
    display: none;
}

.ltplaymodulelist li.active .ltplaymodulebody {
    display: block;
}

.ltplaymodulehead > i.icon-down,
.ltplaymodulehead > i.icon-right,
.ltplaymodulehead > .icon-down,
.ltplaymodulehead > .icon-right {
    flex-shrink: 0;
    width: 14px;
    font-family: "iconfont" !important;
    font-size: 14px;
    font-style: normal;
    color: var(--primary);
    line-height: 1;
    speak: never;
}

.ltplaymodulehead p {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    margin: 0;
}

.ltplaymodulehead p span {
    font-size: 16px;
    color: #243044;
    font-weight: 500;
}

.ltplaymodulehead p em {
    font-style: normal;
    font-size: 13px;
    color: #8e97a7;
}

.ltplaymodulebody {
    padding: 0 2px 22px 24px;
}

.ltplaymodulebody > p {
    font-size: 14px;
    color: #222;
    line-height: 1.9;
    margin: 0;
}

.ltplaymoduleactions {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.ltplaymoduleactions .ltplayprimarybtn {
    font-size: 15px;
    min-width: 140px;
    height: 40px;
    border-radius: 4px;
}

.ltplayshare {
    color: #4e5668;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ltplayshare .icon-share {
    display: inline-block;
    width: 15px;
    height: 15px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300529b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='18' cy='5' r='3'/%3E%3Ccircle cx='6' cy='12' r='3'/%3E%3Ccircle cx='18' cy='19' r='3'/%3E%3Cpath d='M8.59 13.51l6.83 3.98M15.41 6.51l-6.82 3.98'/%3E%3C/svg%3E") center / contain no-repeat;
}

.ltplaymoduletext {
    margin-top: 14px;
}

.ltplaymoduletext p {
    font-size: 14px;
    color: #222;
    line-height: 1.9;
    margin: 0;
}

.ltplayrelated {
    margin-top: 22px;
}

.ltplayrelatedlist li {
    border-bottom: 1px solid #e8edf4;
}

.ltplayrelatedlist li:last-child {
    border-bottom: none;
}

.ltplayrelatedlist li a {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 0;
}

.ltplayrelatedthumb {
    width: 124px;
    height: 74px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}

.ltplayrelatedthumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ltplayrelatedmain p,
.ltplayaboutmain p {
    font-size: 16px;
    font-weight: 700;
    color: var(--titleColor);
    line-height: 1.6;
}

.ltplayrelatedmain span,
.ltplayaboutmain span {
    display: block;
    margin-top: 6px;
    color: #747d8c;
    font-size: 14px;
    line-height: 1.8;
}

.ltplayaboutcard {
    padding: 20px 0 18px;
    border-bottom: 1px solid #e8edf4;
    display: flex;
    align-items: center;
    gap: 14px;
}

.ltplayaboutthumb {
    width: 142px;
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}

.ltplayaboutthumb .img {
    padding-top: 62%;
}

.ltplayaboutthumb .play img {
    height: 34px;
}

.ltplayaboutmain {
    flex: 1;
    min-width: 0;
}

.ltplaypointlist {
    padding: 12px 0 18px;
    border-bottom: 1px solid #e8edf4;
}

.ltplaypointlist li {
    position: relative;
    padding-left: 14px;
    color: #353e4f;
    line-height: 1.9;
    margin-bottom: 8px;
}

.ltplaypointlist li:last-child {
    margin-bottom: 0;
}

.ltplaypointlist li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 13px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--titleColor);
}

.ltplayauthor {
    padding: 14px 0 4px;
}

.ltplayauthor>p {
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
}

.ltplayauthorinfo {
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.ltplayauthorinfo img {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    object-fit: cover;
}

.ltplayauthorinfo strong {
    display: block;
    font-size: 16px;
    color: var(--primary);
    line-height: 1.6;
}

.ltplayauthorinfo span {
    display: block;
    font-size: 14px;
    color: #4f5665;
    line-height: 1.6;
}

.forum-detail {
    background-color: #f6f6f7;
}

.forum-detail-hero {
    padding: 42px 0 34px;
    background-color: #f2f4f7;
}

.forum-detail-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
}

.forum-detail-head-main {
    flex: 1;
    min-width: 0;
}

.forum-detail-head-main h1 {
    font-size: 28px;
    line-height: 1.45;
    color: var(--titleColor);
    font-weight: 700;
}

.forum-detail-meta {
    margin-top: 34px;
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
}

.forum-detail-meta>span,
.forum-detail-like {
    color: #7f8795;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.forum-detail-meta>span i,
.forum-detail-like i {
    color: #7f8795;
    font-size: 14px;
}

.forum-detail-like {
    cursor: pointer;
    text-decoration: none;
    transition: color .2s ease;
}

.forum-detail-like em {
    font-style: normal;
}

.forum-detail-like:hover,
.forum-detail-like.is-liked,
.forum-detail-like:hover i,
.forum-detail-like.is-liked i {
    color: var(--primary);
}

.forum-detail-views svg {
    flex-shrink: 0;
    color: #7f8795;
}

.forum-detail-author {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.forum-detail-author img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.forum-detail-author span {
    font-size: 16px;
    color: #303644;
    line-height: 1.4;
}

.forum-detail-actions {
    width: 250px;
    flex-shrink: 0;
    padding-top: 42px;
}

.forum-detail-actions>p,
.forum-detail-login-link {
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
}

.forum-detail-action-links {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.forum-detail-action-links a {
    color: #4968bb;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.forum-detail-action-links a i {
    color: #4968bb;
    font-size: 14px;
}

.forum-detail-body {
    padding: 40px 0 96px;
}

.forum-detail-layout {
    display: flex;
    align-items: flex-start;
    gap: 22px;
}

.forum-detail-main {
    flex: 1;
    min-width: 0;
}

.forum-detail-side {
    width: 246px;
    flex-shrink: 0;
}

.forum-detail-card,
.forum-detail-side-card {
    background-color: #fff;
    border-radius: 14px;
    box-shadow: 0 16px 36px rgba(16, 42, 99, .05);
}

.forum-detail-card {
    padding: 28px 22px 24px;
}

.forum-detail-question>p {
    color: #4e5668;
    font-size: 15px;
    line-height: 2;
}

.forum-detail-images {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
}

.forum-detail-images-item {
    border-radius: 8px;
    overflow: hidden;
    background: #f5f7fa;
}

.forum-detail-images-item img {
    width: 100%;
    display: block;
}

.forum-detail-cover {
    margin-top: 16px;
    border-radius: 6px;
    overflow: hidden;
}

.forum-detail-cover img {
    width: 100%;
    display: block;
}

.forum-detail-comment-head {
    margin-top: 24px;
}

.forum-detail-comment-head span {
    color: #3a4455;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.forum-detail-comment-head span i {
    font-size: 14px;
    color: #4e5668;
}

.forum-detail-comment {
    margin-top: 18px;
}

.forum-detail-author-comment {
    gap: 14px;
}

.forum-detail-author-comment em {
    font-style: normal;
    color: #7f8795;
    font-size: 14px;
}

.forum-detail-comment p {
    margin-top: 18px;
    padding-left: 52px;
    color: #3a4455;
    font-size: 15px;
    line-height: 1.9;
}

.forum-detail-login-link {
    display: inline-block;
    margin-top: 22px;
}

.forum-detail-reply {
    margin-top: 22px;
}

.forum-detail-reply textarea {
    width: 100%;
    min-height: 110px;
    padding: 14px 16px;
    border: 1px solid #e1e6ef;
    border-radius: 8px;
    color: #3a4455;
    font-size: 15px;
    line-height: 1.7;
    resize: vertical;
    box-sizing: border-box;
}

.forum-detail-reply textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.forum-detail-reply .community-primary-btn {
    margin-top: 14px;
    border: none;
    cursor: pointer;
    padding: 10px 28px;
}

.forum-detail-answer-card {
    margin-top: 20px;
}

.forum-detail-section-title {
    padding-bottom: 18px;
}

.forum-detail-section-title p {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--titleColor);
}

.forum-detail-section-title p i {
    color: var(--primary);
    font-size: 18px;
}

.forum-detail-info-block {
    padding: 20px 0 22px;
    border-top: 1px solid #e8edf4;
}

.forum-detail-info-block h3,
.forum-detail-side-group h3 {
    position: relative;
    padding-left: 16px;
    color: var(--primary);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
}

.forum-detail-info-block h3::before,
.forum-detail-side-group h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 2px;
    bottom: 2px;
    width: 3px;
    background-color: var(--primary);
}

.forum-detail-info-block p {
    margin-top: 24px;
    color: #3a4455;
    font-size: 15px;
    line-height: 1.9;
}

.forum-detail-product-tags {
    margin-top: 22px;
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.forum-detail-product-tags a {
    position: relative;
    color: #2f3746;
    font-size: 15px;
    line-height: 1.8;
}

.forum-detail-product-tags a:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -10px;
    top: 50%;
    width: 1px;
    height: 16px;
    background-color: #bfc7d4;
    transform: translateY(-50%);
}

.forum-detail-labels {
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.forum-detail-labels span {
    min-width: 64px;
    padding: 5px 12px;
    border-radius: 4px;
    background-color: #edf3ff;
    color: #6180cf;
    font-size: 13px;
    text-align: center;
}

.forum-detail-side-card {
    padding: 16px 18px;
}

.forum-detail-side-group+.forum-detail-side-group {
    margin-top: 26px;
}

.forum-detail-side-item {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.forum-detail-side-time {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.forum-detail-side-time span {
    color: #7f8795;
    font-size: 14px;
}

.ltindex {
    padding: var(--pad100);
    background-color: var(--bgcolor);
}

.learnmain {
    display: flex;
    align-items: flex-start;
    margin: 50px 0;
    gap: 30px;
}

.learnmainl {
    width: 43%;
    position: relative;
    cursor: pointer;
    border-radius: var(--radius);
    overflow: hidden;
    display: block;
}

.learnmainl::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, .28);
    z-index: 2;
}

.learnmainl .img {
    padding-top: 64%;
}

.learnmainl .play {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 3;
    transform: translate(-50%, -50%);
}

.learnmainl .play img {
    height: 58px;
}

.learntype {
    display: flex;
    gap: 36px;
    font-size: 24px;
}

.learntype span,
.learntype a {
    cursor: pointer;
    color: var(--gray);
    text-decoration: none;
}

.learntype span.active,
.learntype a.active {
    color: var(--primary);
    font-weight: 700;
}

.learnmainr {
    flex: 1;
}

.learnmainr ul {
    border-radius: var(--radius);
    overflow: hidden;
    background-color: #fff;
    margin-top: 18px;
    box-shadow: 0 12px 32px rgba(31, 67, 155, .06);
}

.learnmainr li {
    border-bottom: 1px solid #eef2f8;
}

.learnmainr li:last-child {
    border-bottom: none;
}

.learnmainr li a {
    padding: 24px 22px;
    display: flex;
    align-items: center;
}

.learnmainr li .point {
    height: 5px;
    width: 5px;
    border-radius: 50%;
    background-color: var(--primary);
    margin-right: 10px;
    flex-shrink: 0;
}

.learnmainr li p:nth-child(2) {
    flex: 1;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    width: 0;
    font-size: 14px;
}

.learnmainr li p:nth-child(3) {
    color: #a2abc0;
    margin-left: 40px;
    font-size: 14px;
    flex-shrink: 0;
}

.learnmainr li a:hover,
.learnmainr li a.active {
    background-color: #244ba8;
}

.learnmainr li a:hover .point,
.learnmainr li a.active .point {
    background-color: #fff;
}

.learnmainr li a:hover p:nth-child(2),
.learnmainr li a.active p:nth-child(2),
.learnmainr li a:hover p:nth-child(3),
.learnmainr li a.active p:nth-child(3) {
    color: #fff;
}

.ltchat {
    margin-top: 50px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.ltchatl {
    width: 27%;
}

.ltchatr {
    flex: 1;
}

.ltcard {
    background-color: var(--cardBg);
    border-radius: var(--radius);
    box-shadow: var(--cardShadow);
    overflow: hidden;
}

.ltchatltop {
    padding: 14px;
}

.community-post-card {
    margin: 14px 0;
    padding: 18px 16px;
    border-radius: 16px;
}

.community-post-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 48px;
    background: #244ba8;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: opacity .15s ease;
}

.community-post-btn:hover {
    opacity: 0.92;
    color: #fff;
}

.lttopimgtit {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
}

.lttopimgtit img {
    width: 18px;
}

.lttopimg {
    display: block;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.lttopimg .img {
    padding-top: 58%;
}

.lttopimg .play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.lttopimg .play img {
    height: 42px;
}

.ltfilter {
    margin-top: 14px;
    padding: 12px 10px;
}

.ltfiltertop {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 6px 14px;
    font-size: 12px;
}

.ltfiltertop p,
.ltfiltertop a {
    color: #9ba5b7;
}

.filtergroup {
    padding: 14px 6px 6px;
    border-top: 1px solid var(--lineLight);
}

.filtertitle {
    position: relative;
    padding-left: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
}

.filtertitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background-color: var(--primary);
}

.filtergroup li {
    margin-bottom: 2px;
}

.filtergroup li:last-child {
    margin-bottom: 0;
}

.filtergroup li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
}

.filtergroup li span {
    flex: 1;
    font-size:18px;
}

.filtergroup li em {
    font-style: normal;
    color: #5b6475;
}

.filtergroup li.active a,
.filtergroup li a:hover {
    background-color: #eff3fb;
    color: var(--primary);
}

.filtergroup li.active em,
.filtergroup li a:hover em {
    color: var(--primary);
}

.ltchatr ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.lttopic a {
    display: flex;
    gap: 18px;
    align-items: stretch;
    background-color: var(--cardBg);
    border-radius: var(--radius);
    box-shadow: var(--cardShadow);
    padding: 16px;
}

.lttopicmain {
    flex: 1;
    min-width: 0;
}

.lttopictitle {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.45;
}

.lttags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 10px 0 14px;
}

.lttags span {
    font-size: 12px;
    color: #4e78dc;
}

.lttopicdesc {
    color: #606a7c;
    line-height: 1.8;
    font-size: 14px;
    max-width: 92%;
}

.lttopicmeta {
    margin-top: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.ltauthor {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #7e8899;
    font-size: 13px;
}

.ltauthor img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.ltstate {
    display: flex;
    align-items: center;
    gap: 18px;
    color: #a0a8b9;
    font-size: 13px;
}

.ltanswercount {
    width: 88px;
    border-radius: 8px;
    background-color: var(--softPanelBg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.ltanswercount strong {
    font-size: 32px;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.ltanswercount span {
    font-size: 12px;
    color: #a1a9b8;
}

/* 社区页顶部工具栏：推荐/最新/热门 + 搜索 + 社区筛选 */
.community-toolbar {
    background: #fff;
    border-bottom: 1px solid #fff;
}

.community-toolbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 56px;
    padding: 10px 0;
}

.community-toolbar-tabs {
    display: flex;
    align-items: stretch;
    gap: 50px;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
  
    min-height: 36px;
}

.community-toolbar-tabs li {
    position: relative;
    display: flex;
    align-items: center;
}

.community-toolbar-tabs a {
    position: relative;
    display: inline-block;
    color: #333;
    font-size: 18px;
    text-decoration: none;
    line-height: 1;
    padding: 8px 4px 12px;
}

.community-toolbar-tabs a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 0;
    height: 2px;
    background: #244ba8;
    border-radius: 1px;
    transform: translateX(-50%);
    transition: width .2s ease;
}

.community-toolbar-tabs li.active a {
    color: #244ba8;
    font-weight: 600;
}

.community-toolbar-tabs li.active a::after {
    width: calc(100% + 24px);
    min-width: 80px;
}

.community-toolbar-tabs a:hover {
    color: #244ba8;
}

.community-toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.community-toolbar-search {
    display: flex;
    align-items: stretch;
    height: 36px;
}

.community-toolbar-search input {
    width: 320px;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #adc6ff;
    border-right: none;
    border-radius: 4px 0 0 4px;
    background: #fff;
    outline: none;
    font-size: 18px;
    color: #333;
}

.community-toolbar-search input::placeholder {
    color: #9aa4b5;
}

.community-toolbar-search button {
    width: 40px;
    height: 36px;
    border: none;
    border-radius: 0 4px 4px 0;
    background: #244ba8;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.community-toolbar-search button:hover {
    opacity: 0.92;
}

.community-toolbar-select {
    position: relative;
}

.community-toolbar-select-btn {
    min-width: 118px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid #adc6ff;
    border-radius: 4px;
    background: #fff;
    color: #333;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.community-toolbar-select-btn svg {
    flex-shrink: 0;
    color: #6b778c;
    transition: transform .15s ease;
}

.community-toolbar-select.open .community-toolbar-select-btn svg {
    transform: rotate(180deg);
}

.community-toolbar-select-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    min-width: 100%;
    margin: 0;
    padding: 6px 0;
    list-style: none;
    background: #fff;
    border: 1px solid #adc6ff;
    border-radius: 4px;
    box-shadow: 0 8px 20px rgba(36, 75, 168, 0.12);
    z-index: 20;
}

.community-toolbar-select.open .community-toolbar-select-menu {
    display: block;
}

.community-toolbar-select-menu a {
    display: block;
    padding: 8px 14px;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    white-space: nowrap;
}

.community-toolbar-select-menu li.active a,
.community-toolbar-select-menu a:hover {
    background: #edf3ff;
    color: #244ba8;
}

/* q page - community section start */
.community-panel {
    margin-top: 28px;
}

.community-compose {
    background-color: var(--cardBg);
    border-radius: var(--radius);
    box-shadow: var(--cardShadow);
    padding: 34px 42px 26px;
}

.community-compose-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 18px;
}

.community-compose-head p {
    font-size: 36px;
    font-weight: 700;
    color: #1c2432;
}

.community-primary-btn,
.community-secondary-btn {
    min-width: 104px;
    height: 40px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.community-primary-btn {
    background-color: #244ba8;
    color: #fff;
}

.community-secondary-btn {
    background-color: #f2f3f5;
    color: #3a4251;
}

.community-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.community-field label {
    display: block;
    margin-bottom: 12px;
    font-size: 15px;
    color: #333b49;
}

.community-field input,
.community-field textarea,
.community-select select {
    width: 100%;
    border: 1px solid var(--fieldBorder);
    border-radius: 6px;
    background-color: var(--cardBg);
    color: #2a3140;
    font-size: 14px;
    padding: 0 14px;
}

.community-field input,
.community-select select {
    height: 44px;
}

.community-field textarea {
    height: 122px;
    padding: 14px;
    resize: none;
}

.community-upload-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 16px;
    border: 1px dashed var(--fieldBorder);
    border-radius: 6px;
    background: #f7f9fc;
    color: #5b6475;
    cursor: pointer;
    font-size: 14px;
}

.community-upload-trigger:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.community-upload-trigger img {
    width: 18px;
    height: 18px;
}

.community-upload-tip {
    margin-top: 8px;
    font-size: 12px;
    color: #9aa4b5;
}

.community-upload-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
    list-style: none;
    padding: 0;
}

.community-upload-preview li {
    position: relative;
    width: 88px;
    height: 88px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #e8ebf0;
    background: #f5f7fa;
}

.community-upload-preview li img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.community-upload-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 14px;
    line-height: 20px;
    text-align: center;
    cursor: pointer;
}

.community-upload-remove:hover {
    background: rgba(0, 0, 0, 0.75);
}

.community-field input::placeholder,
.community-field textarea::placeholder,
.community-select select {
    color: #9aa4b5;
}

.community-select {
    position: relative;
}

.community-select::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-right: 1px solid #8f99aa;
    border-bottom: 1px solid #8f99aa;
    transform: translateY(-70%) rotate(45deg);
    pointer-events: none;
}

.community-select select {
    appearance: none;
}

.community-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.community-tags span {
    padding: 6px 12px;
    border-radius: 4px;
    background-color: #edf3ff;
    color: #5d78bf;
    font-size: 13px;
    cursor: pointer;
    user-select: none;
    transition: all .15s ease;
}

.community-tags span:hover {
    background-color: #dce8ff;
}

.community-tags span.active {
    background-color: #244ba8;
    color: #fff;
}

.community-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 4px;
}

.community-content {
    margin-top: 18px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.community-side {
    width: 25%;
}

.community-list {
    flex: 1;
}

.community-intro,
.community-topic {
    background-color: var(--cardBg);
    border-radius: var(--radius);
    box-shadow: var(--cardShadow);
}

.community-intro {
    padding: 14px;
}

.community-intro-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.community-intro-title span {
    color: #244ba8;
    font-size: 16px;
}

.community-intro-title p {
    font-size: 18px;
    font-weight: 700;
}

.community-intro-video {
    display: block;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.community-intro-video .img {
    padding-top: 62%;
}

.community-intro-video .play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.community-intro-video .play img {
    height: 42px;
}

.community-topic {
    display: flex;
    gap: 24px;
    align-items: stretch;
    padding: 20px;
}

.community-topic-main {
    flex: 1;
    min-width: 0;
}

.community-topic-title {
    font-size: 24px;
    line-height: 1.5;
    font-weight: 700;
    color: #244ba8;
}

.community-topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 10px 0 14px;
}

.community-topic-tags span {
    font-size: 12px;
    color: #4e78dc;
}

.community-topic-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #606a7c;
}

.community-topic-meta {
    margin-top: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.community-topic-author {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #7e8899;
    font-size: 13px;
}

.community-topic-author img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.community-topic-state {
    display: flex;
    gap: 18px;
    color: #a0a8b9;
    font-size: 13px;
}

.community-topic-count {
    width: 92px;
    border-radius: 8px;
    background-color: var(--softPanelBg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.community-topic-count strong {
    font-size: 32px;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.community-topic-count span {
    font-size: 12px;
    color: #a1a9b8;
}

/* q page - community section end */

.forum-download {
    padding: 100px 0 50px 0;
    background-color: #fff;
}

.downloadlist {
    margin-top: 60px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.downloadlist li {
    width: calc((100% - 96px) / 5);
    text-align: center;
}

.downloadlist img {
    width: 100%;
}

.downloadlist li p {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 18px;
    height: 86px;
}

.downloadlist li a {
    padding: 10px 22px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--primary);
    border-radius: 4px;
    color: var(--primary);
    font-size: 14px;
}

.downloadlist li a span {
    color: var(--primary);
    font-size: 14px;
}

.downloadlist li a:hover {
    background-color: var(--primary);
    color: #fff;
}

.downloadlist li a:hover span {
    color: #fff;
}

.forum-service {
    padding: 0 0 110px;
    background-color: #fff;
}

.forum-service-list {
    margin-top: 54px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.forum-service-list li {
    width: calc((100% - 80px) / 6);
    text-align: center;
}

.forum-service-icon {
    height: 76px;
    width: 76px;
    border-radius: 50%;
    background: linear-gradient(180deg, #edf3ff 0%, #eef4ff 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 18px;
}

.forum-service-icon span {
    font-size: 28px;
    color: #2f58bb;
}

.forum-service-list li p {
    font-size: 16px;
    color: #4e5564;
}

@media (max-width:768px) {
    .banner {
        min-height: 240px;
        display: flex;
        align-items: center;
    }

    .banner>img {
        position: absolute;
        inset: 0;
        height: 100%;
        object-fit: cover;
    }

    .banner .banmain {
        position: static;
        transform: none;
        width: 100%;
        padding: 15px;
        z-index: 10;
    }

    .banmain p:nth-child(1) {
        font-size: 20px;
        margin-bottom: 10px;
    }

    .banmain p:nth-child(2) {
        font-size: 14px;
    }

    .ltvideo {
        padding: 30px 0 40px;
    }

    .ltvideohead {
        display: block;
        margin-bottom: 18px;
    }

    .ltvideohead>p {
        font-size: 22px;
        margin-bottom: 14px;
    }

    .ltvideosearch,
    .ltvideofilter,
    .ltvideocardthumb {
        width: 100%;
    }

    .ltvideomain {
        display: block;
    }

    .ltvideofilterinner {
        padding: 16px 14px;
        margin-bottom: 14px;
    }

    .ltvideofiltergroup {
        padding-top: 16px;
        margin-top: 16px;
    }

    .ltvideofiltertitle {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .ltvideotools {
        display: block;
        margin-bottom: 10px;
    }

    .ltvideosort {
        justify-content: space-between;
    }

    .ltvideoresult {
        justify-content: flex-end;
        margin-top: 12px;
    }

    .ltvideolist li a {
        display: block;
        padding: 14px;
    }

    .ltvideocardmain {
        margin-top: 12px;
    }

    .ltvideocardthumb .play img {
        height: 46px;
    }

    .ltvideocardtitle {
        font-size: 18px;
    }

    .ltvideocarddesc {
        margin-top: 10px;
        font-size: 13px;
    }

    .ltvideocardmeta {
        margin-top: 12px;
        gap: 14px;
    }

    .learnmain {
        margin: 18px 0 28px;
        display: block;
    }

    .learnmainl,
    .ltchatl,
    .ltchatr,
    .downloadlist li,
    .forum-service-list li {
        width: 100%;
    }

    .learnmainr {
        margin-top: 15px;
    }

    .learntype {
        font-size: 18px;
        gap: 24px;
    }

    .learnmainr li a {
        padding: 15px;
        align-items: flex-start;
    }

    .learnmainr li p:nth-child(2) {
        white-space: normal;
        line-height: 1.6;
    }

    .learnmainr li p:nth-child(3) {
        margin-left: 14px;
        font-size: 12px;
    }

    .ltchat {
        display: block;
        margin-top: 18px;
    }

    .community-toolbar-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px 0;
    }

    .community-toolbar-tabs {
        gap: 24px;
        justify-content: center;
    }

    .community-toolbar-right {
        width: 100%;
        justify-content: space-between;
    }

    .community-toolbar-search {
        flex: 1;
    }

    .community-toolbar-search input {
        width: 0;
        flex: 1;
    }

    .ltfilter {
        margin-bottom: 15px;
    }

    .filtertitle {
        font-size: 18px;
    }

    .ltchatr ul {
        gap: 12px;
    }

    .lttopic a {
        display: block;
        padding: 14px;
    }

    .lttopictitle {
        font-size: 18px;
    }

    .lttopicdesc {
        max-width: 100%;
        font-size: 13px;
    }

    .lttopicmeta {
        display: block;
    }

    .ltstate {
        margin-top: 10px;
    }

    .ltanswercount {
        width: 100%;
        margin-top: 12px;
        padding: 14px 0;
        flex-direction: row;
        gap: 12px;
    }

    .ltanswercount strong {
        font-size: 24px;
        margin-bottom: 0;
    }

    .community-compose {
        padding: 18px 15px;
    }

    .community-compose-head {
        display: block;
        margin-bottom: 14px;
    }

    .community-compose-head p {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .community-primary-btn,
    .community-secondary-btn {
        min-width: 88px;
        height: 36px;
        font-size: 13px;
    }

    .community-actions {
        justify-content: flex-start;
    }

    .community-content {
        display: block;
        margin-top: 15px;
    }

    .community-side,
    .community-list {
        width: 100%;
    }

    .community-list {
        margin-top: 14px;
    }

    .community-topic {
        display: block;
        padding: 14px;
    }

    .community-topic-title {
        font-size: 18px;
    }

    .community-topic-meta {
        display: block;
    }

    .community-topic-state {
        margin-top: 10px;
    }

    .community-topic-count {
        width: 100%;
        margin-top: 12px;
        padding: 14px 0;
        flex-direction: row;
        gap: 12px;
    }

    .community-topic-count strong {
        font-size: 24px;
        margin-bottom: 0;
    }

    .forum-download {
        padding: 15px;
    }

    .downloadlist li {
        width: calc((100% - 24px) / 2);
    }

    .downloadlist li p {
        height: auto;
    }

    .downloadlist {
        margin-top: 18px;
        flex-wrap: wrap;
        gap: 24px;
    }

    .downloadfigure {
        height: 110px;
        margin-bottom: 14px;
    }

    .downloadlist li p {
        font-size: 15px;
        margin-bottom: 12px;
    }

    .forum-service {
        padding: 0 0 40px;
    }

    .forum-service-list {
        margin-top: 18px;
        flex-wrap: wrap;
        gap: 20px 15px;
    }

    .forum-service-list li {
        width: calc((100% - 15px) / 2);
    }

    .forum-service-icon {
        height: 64px;
        width: 64px;
        margin-bottom: 12px;
    }

    .forum-service-list li p {
        font-size: 14px;
    }

    .ltvideoplay {
        padding: 15px;
    }

    .ltvideoplayhero,
    .ltvideoplaybody,
    .ltplayaboutcard,
    .ltplayrelatedlist li a {
        display: block;
    }

    .ltvideoplayhero,
    .ltplaypanel {
        padding: 15px;
    }

    .ltvideoplaycover,
    .ltvideoplayright,
    .ltplayaboutthumb,
    .ltplayrelatedthumb,
    .ltcourse-player,
    .ltcourse-side {
        width: 100%;
    }

    .ltcourse-side {
        min-width: 0;
        padding-right: 0;
    }

    .ltcourse-mask-text p,
    .ltcourse-title {
        font-size: 20px;
    }

    .ltvideoplayintro {
        margin-top: 15px;
    }

    .ltvideoplaytitle {
        font-size: 18px;
    }

    .ltvideoplayjoin {
        margin-top: 14px;
    }

    .ltvideoplaybody {
        margin-top: 15px;
    }

    .ltvideoplayright {
        margin-top: 15px;
    }

    .ltplaysectionhead p {
        font-size: 16px;
    }

    .ltplaymodulehead {
        padding: 14px 0;
    }

    .ltplaymodulehead p span,
    .ltplayrelatedmain p,
    .ltplayaboutmain p {
        font-size: 15px;
    }

    .ltplaymoduleactions {
        gap: 12px;
    }

    .ltplayprimarybtn {
        min-width: 100px;
        height: 38px;
        font-size: 13px;
    }

    .ltplayaboutmain {
        margin-top: 14px;
    }

    .ltplayauthorinfo {
        margin-top: 12px;
    }

    .ltplayrelatedthumb {
        height: auto;
    }

    .ltplayrelatedmain {
        margin-top: 12px;
    }

    .ltvideo{
        padding: 15px;
    }
    .ltsqjl .community-panel .title{
        margin-top: 15px!important;
    }

    .forum-detail-hero,
    .forum-detail-body {
        padding: 15px;
    }

    .forum-detail-head,
    .forum-detail-layout,
    .forum-detail-side-item {
        display: block;
    }

    .forum-detail-head-main h1 {
        font-size: 20px;
    }

    .forum-detail-meta {
        margin-top: 18px;
        gap: 12px 16px;
    }

    .forum-detail-author span,
    .forum-detail-actions>p,
    .forum-detail-login-link,
    .forum-detail-action-links a {
        font-size: 14px;
    }

    .forum-detail-actions {
        width: 100%;
        padding-top: 18px;
    }

    .forum-detail-action-links {
        margin-top: 12px;
        gap: 18px;
        flex-wrap: wrap;
    }

    .forum-detail-side {
        width: 100%;
        margin-top: 15px;
    }

    .forum-detail-card,
    .forum-detail-side-card {
        padding: 15px;
    }

    .forum-detail-question>p,
    .forum-detail-comment p,
    .forum-detail-info-block p,
    .forum-detail-product-tags a {
        font-size: 14px;
    }

    .forum-detail-comment p {
        padding-left: 0;
        margin-top: 12px;
    }

    .forum-detail-section-title p {
        font-size: 18px;
    }

    .forum-detail-info-block {
        padding: 16px 0 18px;
    }

    .forum-detail-info-block h3,
    .forum-detail-side-group h3 {
        font-size: 16px;
    }

    .forum-detail-info-block p,
    .forum-detail-product-tags,
    .forum-detail-labels {
        margin-top: 14px;
    }

    .forum-detail-product-tags {
        gap: 10px 18px;
    }

    .forum-detail-side-group+.forum-detail-side-group {
        margin-top: 20px;
    }

    .forum-detail-side-item {
        margin-top: 14px;
    }

    .forum-detail-side-time {
        margin-top: 10px;
        gap: 10px;
    }

    .ltvideo-modal-panel {
        width: calc(100% - 32px);
        margin-top: 12vh;
        padding: 52px 12px 12px;
    }
}

/* 课程模块视频弹窗 */
body.ltvideo-modal-lock {
    overflow: hidden;
}

.ltvideo-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
}

.ltvideo-modal.is-open {
    display: block;
}

.ltvideo-modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(8, 16, 36, .72);
}

.ltvideo-modal-panel {
    position: relative;
    z-index: 1;
    width: min(920px, calc(100% - 64px));
    margin: 10vh auto 0;
    padding: 56px 18px 18px;
    background: #12151c;
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}

.ltvideo-modal-title {
    position: absolute;
    top: 16px;
    left: 18px;
    right: 108px;
    margin: 0;
    color: #fff;
    font-size: 16px;
    line-height: 32px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ltvideo-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 32px;
    padding: 0 12px 0 10px;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 16px;
    background: rgba(255, 255, 255, .12);
    color: #fff;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
}

.ltvideo-modal-close em {
    font-style: normal;
}

.ltvideo-modal-x {
    position: relative;
    width: 12px;
    height: 12px;
}

.ltvideo-modal-x::before,
.ltvideo-modal-x::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 0;
    width: 2px;
    height: 12px;
    background: currentColor;
    border-radius: 1px;
}

.ltvideo-modal-x::before {
    transform: rotate(45deg);
}

.ltvideo-modal-x::after {
    transform: rotate(-45deg);
}

.ltvideo-modal-close:hover {
    background: #fff;
    border-color: #fff;
    color: #12151c;
}

.ltvideo-modal video {
    display: block;
    width: 100%;
    max-height: 70vh;
    background: #000;
    border-radius: 8px;
}