.help-detail-simple-page {
    background: #f8fafc;
    color: #1e293b;
    padding-top: 0;
}

.help-detail-simple-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 820px);
    gap: 0;
    min-height: calc(100vh - 76px);
    margin: 0 auto;
    background: #fff
}

.help-detail-nav {
    position: sticky;
    top: 76px;
    height: calc(100vh - 76px);
    overflow-y: auto;
    padding: 24px 16px 42px;
    border-right: 1px solid #e5eaf0;
    background: #fbfcfe
}

.help-detail-nav-head {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 10px 18px
}

.help-detail-nav-head a {
    color: #1f3b5b;
    font-size: 16px;
    font-weight: 700
}

.help-detail-nav-head a i {
    margin-right: 7px;
    color: #1677ff
}

.help-detail-nav-head span {
    color: #94a3b8;
    font-size: 12px
}

.help-nav-group {
    border-bottom: 1px solid #edf1f5
}

.help-nav-category {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 10px;
    border: 0;
    background: transparent;
    color: #475569;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-align: left
}

.help-nav-category span {
    display: flex;
    align-items: center;
    gap: 9px
}

.help-nav-category span>i {
    width: 16px;
    color: #1677ff;
    text-align: center
}

.help-nav-category>i {
    font-size: 11px;
    transition: transform .18s
}

.help-nav-group.is-open .help-nav-category>i {
    transform: rotate(180deg)
}

.help-nav-items {
    display: none;
    padding: 0 0 10px
}

.help-nav-group.is-open .help-nav-items {
    display: block
}

.help-nav-item {
    display: block;
    overflow: hidden;
    padding: 7px 10px 7px 35px;
    color: #64748b;
    font-size: 13px;
    line-height: 1.45;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap
}

.help-nav-item:hover {
    color: #1677ff;
    background: #f1f7ff
}

.help-nav-item.is-active {
    border-radius: 6px;
    background: #eaf3ff;
    color: #1677ff;
    font-weight: 600
}

.help-nav-empty {
    display: block;
    padding: 5px 10px 8px 35px;
    color: #a6b0bd;
    font-size: 12px
}

.help-detail-document {
    padding: 30px;
    background: #fff;
    max-width: 1120px !important;
    margin: 0 auto;
}

.help-detail-crumb {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 30px;
    color: #8a97a8;
    font-size: 13px
}

.help-detail-crumb a {
    color: #718096
}

.help-detail-crumb a:hover {
    color: #1677ff
}

.help-detail-crumb i {
    font-size: 10px;
    color: #bdc6d1
}

.help-detail-document-head {
    padding-bottom: 30px;
    border-bottom: 1px solid #e9eef4
}

.help-detail-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #1677ff;
    font-size: 13px;
    font-weight: 600
}

.help-detail-head-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 14px;
}

.help-detail-document-head h1,
.help-detail-head-title {
    margin: 0;
    color: #172f52;
    font-size: 30px;
    line-height: 1.32;
    flex: 1;
    min-width: 0;
}

.help-detail-head-action {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    margin-top: 4px;
}

.btn-watch-video {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 18px;
    background: linear-gradient(135deg, #1677ff 0%, #0e5fd8 100%);
    color: #ffffff !important;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    border-radius: 9999px;
    text-decoration: none !important;
    white-space: nowrap !important;
    box-shadow: 0 3px 12px rgba(22, 119, 255, 0.28);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.btn-watch-video i {
    font-size: 16px;
    color: #ffffff;
    transition: transform 0.25s ease;
}

.btn-watch-video span {
    white-space: nowrap !important;
}

.btn-watch-video:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    box-shadow: 0 6px 18px rgba(22, 119, 255, 0.4);
    transform: translateY(-2px);
    color: #ffffff !important;
}

.btn-watch-video:hover i {
    transform: scale(1.15);
}

.btn-watch-video:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(22, 119, 255, 0.25);
}

.help-detail-document-head>p {
    margin: 0;
    color: #64748b;
    font-size: 16px;
    line-height: 1.8
}

.help-detail-document-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 20px;
    color: #94a3b8;
    font-size: 13px
}

.help-detail-document-meta i {
    margin-right: 5px
}

.help-detail-document-content {
    padding-top: 34px
}

.help-detail-prose {
    color: #334155;
    font-size: 16px;
    line-height: 1.9;
    word-break: break-word
}

.help-detail-prose>*:first-child {
    margin-top: 0
}

.help-detail-prose p {
    margin: 0 0:1.35em
}

.help-detail-prose h2,
.help-detail-prose h3 {
    margin: 1.75em 0 .65em;
    color: #1e293b;
    line-height: 1.4
}

.help-detail-prose h2 {
    font-size: 24px
}

.help-detail-prose h3 {
    font-size: 20px
}

.help-detail-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 8px
}

.help-detail-prose a {
    color: #1677ff
}

.help-detail-prose ul,
.help-detail-prose ol {
    padding-left: 1.5em
}

.help-detail-prose blockquote {
    margin: 1.5em 0;
    padding: 14px 18px;
    border-left: 3px solid #60a5fa;
    background: #f5f9ff;
    color: #52657c
}

.help-detail-steps {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: step
}

.help-detail-steps>li {
    position: relative;
    padding: 0 0 26px 52px;
    counter-increment: step
}

.help-detail-steps>li:before {
    position: absolute;
    top: 0;
    left: 0;
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 50%;
    background: #eaf3ff;
    color: #1677ff;
    content: counter(step);
    font-size: 13px;
    font-weight: 700
}

.help-detail-steps>li:not(:last-child):after {
    position: absolute;
    top: 35px;
    bottom: 3px;
    left: 14px;
    width: 1px;
    background: #dce8f7;
    content: ""
}

.help-detail-steps h2 {
    margin: 0 0 12px;
    color: #263a55;
    font-size: 16px
}

.help-detail-steps img {
    max-width: 200px;
    border: 1px solid #e5eaf0;
    border-radius: 8px
}

.help-detail-video {
    position: relative;
    height: 0;
    margin-top: 28px;
    padding-bottom: 56.25%;
    overflow: hidden;
    border-radius: 8px;
    background: #0f172a
}

.help-detail-video iframe {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 0
}

.help-detail-document-foot {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 46px;
    padding-top: 24px;
    border-top: 1px solid #e9eef4
}

.help-detail-document-foot a,
.help-detail-document-foot button {
    padding: 9px 13px;
    border: 1px solid #d9e2ed;
    border-radius: 7px;
    background: #fff;
    color: #52657c;
    font-size: 14px;
    cursor: pointer
}

.help-detail-document-foot a:hover,
.help-detail-document-foot button:hover {
    border-color: #1677ff;
    color: #1677ff
}

@media(max-width:900px) {
    .help-detail-simple-layout {
        display: block
    }

    .help-detail-nav {
        position: static;
        height: auto;
        max-height: 340px;
        border-right: 0;
        border-bottom: 1px solid #e5eaf0
    }

    .help-detail-document {
        padding-top: 34px
    }
}

@media(max-width:600px) {
    .help-detail-nav {
        padding: 18px 12px
    }

    .help-detail-document {
        padding: 28px 20px 46px
    }

    .help-detail-head-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 12px;
    }

    .help-detail-document-head h1,
    .help-detail-head-title {
        font-size: 24px;
        line-height: 1.36;
    }

    .help-detail-head-action {
        margin-top: 0;
        width: auto;
    }

    .btn-watch-video {
        padding: 6px 15px;
        font-size: 13px;
        box-shadow: 0 2px 8px rgba(22, 119, 255, 0.2);
    }

    .btn-watch-video i {
        font-size: 14px;
    }

    .help-detail-document-foot {
        flex-direction: column;
        align-items: stretch
    }

    .help-detail-document-foot a,
    .help-detail-document-foot button {
        text-align: center
    }

    .help-detail-steps>li {
        padding-left: 44px
    }
}