/*
 * 文档阅读页视觉增强：保持原有 DOM、目录树和所有操作逻辑不变。
 */

.m-manual.manual-reader {
    --reader-sidebar-width: 288px;
    color: var(--md-text);
    background: var(--md-bg);
}

.m-manual.manual-reader .manual-head {
    height: 58px;
    min-height: 58px;
    margin: 0;
    background: rgba(255, 255, 255, .9);
    border: 0;
    border-bottom: 1px solid var(--md-border);
    box-shadow: 0 1px 0 rgba(15, 23, 42, .02);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
}

.m-manual.manual-reader .manual-title {
    display: flex;
    align-items: center;
    height: 58px;
}

.m-manual.manual-reader .manual-title .slidebar {
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    margin-right: 10px;
    color: var(--md-text-secondary);
    border-radius: 9px;
}

.m-manual.manual-reader .manual-title .slidebar:hover {
    color: var(--md-primary);
    background: var(--md-primary-soft);
}

.m-manual.manual-reader .book-title {
    color: var(--md-text) !important;
    font-size: 15px;
    font-weight: 650;
    letter-spacing: -.01em;
}

.m-manual.manual-reader .manual-menu {
    display: flex;
    align-items: center;
    height: 58px;
}

.m-manual.manual-reader .manual-menu .dropdown {
    margin-right: 7px !important;
}

.m-manual.manual-reader .manual-menu .btn {
    height: 34px;
    padding: 6px 11px;
    color: var(--md-text-secondary);
    font-size: 12px;
    font-weight: 500;
    background: var(--md-bg-card);
    border: 1px solid var(--md-border);
    border-radius: 9px;
    box-shadow: none;
}

.m-manual.manual-reader .manual-menu .btn:hover {
    color: var(--md-primary);
    border-color: rgba(var(--md-primary-rgb), .35);
    background: var(--md-primary-softer);
}

.m-manual.manual-reader .manual-menu .btn-primary,
.m-manual.manual-reader .manual-menu .btn-success,
.m-manual.manual-reader .manual-menu .btn-danger {
    color: var(--md-primary);
    background: var(--md-primary-soft);
    border-color: transparent;
}

.m-manual.manual-reader > .manual-body {
    top: 58px;
    background: var(--md-bg);
}

.m-manual.manual-reader .manual-left {
    top: 58px;
    width: var(--reader-sidebar-width);
    background: color-mix(in srgb, var(--md-bg-card) 94%, var(--md-bg-subtle));
    border-right: 1px solid var(--md-border);
}

.m-manual.manual-reader .manual-tab {
    background: transparent;
}

.m-manual.manual-reader .manual-tab .tab-item {
    color: var(--md-text);
    background: transparent;
}

.m-manual.manual-reader .tab-navg {
    display: flex;
    align-items: center;
    gap: 3px;
    height: 54px;
    padding: 10px 12px;
    background: color-mix(in srgb, var(--md-bg-card) 96%, var(--md-bg-subtle));
    border-bottom: 1px solid var(--md-border-light);
}

.m-manual.manual-reader .manual-tab .tab-item {
    top: 54px;
}

.m-manual.manual-reader .tab-navg .navg-item {
    display: inline-flex;
    float: none;
    align-items: center;
    gap: 5px;
    height: 32px;
    padding: 0 10px;
    color: var(--md-text-muted);
    font-size: 12px;
    line-height: 32px;
    border-radius: 8px;
    transition: color .16s ease, background-color .16s ease;
}

.m-manual.manual-reader .tab-navg .navg-item .fa {
    margin-right: 0;
    color: inherit;
}

.m-manual.manual-reader .tab-navg .navg-item.active,
.m-manual.manual-reader .tab-navg .navg-item:hover {
    color: var(--md-primary);
    background: var(--md-primary-soft);
}

.m-manual.manual-reader .tab-navg .navg-item.active {
    height: 32px;
    margin: 0;
    padding: 0 10px;
    border: 0;
}

.m-manual.manual-reader #handlerMenuShow {
    display: inline-flex !important;
    float: none !important;
    align-items: center;
    height: 32px;
    margin-left: auto;
    padding: 0 6px !important;
    color: var(--md-text-muted);
    border-radius: 8px;
    transition: color .16s ease, background-color .16s ease;
}

.m-manual.manual-reader #handlerMenuShow .fa {
    padding-right: 3px !important;
}

.m-manual.manual-reader #handlerMenuShow .pull-right {
    float: none !important;
    padding-top: 0 !important;
}

.m-manual.manual-reader #handlerMenuShow:hover {
    color: var(--md-text);
    background: var(--md-bg-subtle);
}

.m-manual.manual-reader .manual-tab .tab-util {
    top: 50%;
    right: -31px;
    z-index: 4;
    transform: translateY(-50%);
}

.m-manual.manual-reader .manual-fullscreen-switch .open,
.m-manual.manual-reader .manual-fullscreen-switch .close {
    display: inline-grid;
    place-items: center;
    width: 25px;
    height: 40px;
    color: var(--md-text-muted);
    font-size: 14px;
    background: var(--md-bg-card);
    border: 1px solid var(--md-border);
    border-left-color: var(--md-border-light);
    border-radius: 0 10px 10px 0;
    box-shadow: 2px 0 8px rgba(15, 23, 42, .06);
    transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}

.m-manual.manual-reader .manual-fullscreen-switch .open {
    display: none;
}

.m-manual.manual-reader .manual-fullscreen-switch .open::before,
.m-manual.manual-reader .manual-fullscreen-switch .close::before {
    position: static;
    transform: none;
}

.m-manual.manual-reader .manual-fullscreen-switch .open:hover,
.m-manual.manual-reader .manual-fullscreen-switch .close:hover {
    color: var(--md-primary);
    background: var(--md-primary-softer);
    border-color: rgba(var(--md-primary-rgb), .34);
}

.m-manual.manual-reader .manual-fullscreen-switch .open:focus-visible,
.m-manual.manual-reader .manual-fullscreen-switch .close:focus-visible {
    outline: 2px solid rgba(var(--md-primary-rgb), .45);
    outline-offset: 2px;
}

.m-manual.manual-reader.manual-fullscreen-active .manual-fullscreen-switch .open {
    display: inline-grid;
}

.m-manual.manual-reader.manual-fullscreen-active .manual-fullscreen-switch .close {
    display: none;
}

.m-manual.manual-reader .catalog-list {
    padding: 10px 10px 36px;
}

/*
 * jsTree 启动前的轻量目录样式。服务端目录不再默认 display:none，
 * 因此即使代码高亮或 Markdown 编辑器脚本较大，用户也能立即看到目录。
 */
.m-manual.manual-reader .catalog-list:not(.jstree) > ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.m-manual.manual-reader .catalog-list:not(.jstree) ul ul {
    margin: 0;
    padding-left: 18px;
    list-style: none;
}

.m-manual.manual-reader .catalog-list:not(.jstree) li > a {
    display: block;
    min-height: 36px;
    padding: 8px 10px;
    overflow: hidden;
    color: var(--md-text);
    font-size: 13.5px;
    line-height: 20px;
    text-overflow: ellipsis;
    white-space: nowrap;
    border-radius: 8px;
}

.m-manual.manual-reader .catalog-list:not(.jstree) > ul > li > a {
    font-weight: 600;
}

.m-manual.manual-reader .catalog-list:not(.jstree) ul ul li > a {
    color: var(--md-text-secondary);
}

.m-manual.manual-reader .catalog-list:not(.jstree) li > a.jstree-clicked {
    color: var(--md-primary);
    font-weight: 600;
    background: var(--md-primary-soft);
    box-shadow: inset 3px 0 0 var(--md-primary);
}

.m-manual.manual-reader .jstree-default .jstree-node {
    min-height: 36px;
    line-height: 36px;
    margin-left: 15px;
    background-image: none !important;
}

.m-manual.manual-reader .jstree-default > .jstree-container-ul > .jstree-node {
    margin-left: 0;
}

.m-manual.manual-reader .jstree-default .jstree-icon {
    background-image: none !important;
}

.m-manual.manual-reader .jstree-default .jstree-ocl {
    position: relative;
    width: 20px;
    color: var(--md-text-muted);
    text-align: center;
    opacity: .78;
    transition: color .16s ease, opacity .16s ease;
}

.m-manual.manual-reader .jstree-default .jstree-ocl::before {
    display: inline-block;
    width: 20px;
    font-family: FontAwesome;
    font-size: 12px;
    font-style: normal;
    line-height: 36px;
    text-align: center;
}

.m-manual.manual-reader .jstree-default .jstree-closed > .jstree-ocl::before {
    content: "\f105";
}

.m-manual.manual-reader .jstree-default .jstree-open > .jstree-ocl::before {
    content: "\f107";
}

.m-manual.manual-reader .jstree-default .jstree-leaf > .jstree-ocl::before {
    content: "\f15c";
    color: color-mix(in srgb, var(--md-text-muted) 72%, transparent);
    font-size: 11px;
}

.m-manual.manual-reader .jstree-default .jstree-node:hover > .jstree-ocl {
    color: var(--md-primary);
    opacity: 1;
}

.m-manual.manual-reader .jstree-default .jstree-anchor {
    display: inline-block;
    height: 36px;
    width: calc(100% - 22px);
    max-width: calc(100% - 22px);
    padding: 6px 8px;
    overflow: hidden;
    color: var(--md-text-secondary);
    font-size: 13.25px;
    line-height: 24px;
    text-overflow: ellipsis;
    white-space: nowrap;
    border-radius: 8px;
    transition: color .16s ease, background-color .16s ease, box-shadow .16s ease;
}

.m-manual.manual-reader .jstree-default > .jstree-container-ul > .jstree-node > .jstree-anchor {
    color: var(--md-text);
    font-weight: 600;
}

.m-manual.manual-reader .jstree-default .jstree-children .jstree-children .jstree-anchor {
    color: color-mix(in srgb, var(--md-text-secondary) 90%, var(--md-text-muted));
    font-size: 12.75px;
}

.m-manual.manual-reader .jstree-default .jstree-anchor:hover,
.m-manual.manual-reader .jstree-default .jstree-anchor.jstree-hovered {
    color: var(--md-text) !important;
    background: var(--md-bg-subtle) !important;
    box-shadow: none !important;
}

.m-manual.manual-reader .jstree-default .jstree-anchor.jstree-clicked {
    color: var(--md-primary) !important;
    font-weight: 600;
    background: var(--md-primary-soft) !important;
    box-shadow: inset 3px 0 0 var(--md-primary) !important;
}

.m-manual.manual-reader .jstree-default .jstree-anchor:focus-visible {
    outline: 2px solid rgba(var(--md-primary-rgb), .38);
    outline-offset: -2px;
}

.m-manual.manual-reader .manual-search .search-form {
    margin: 12px;
}

.m-manual.manual-reader .manual-search .search-form .form-control {
    height: 36px;
    padding: 7px 36px 7px 11px;
    color: var(--md-text);
    background: var(--md-bg-card);
    border-color: var(--md-border);
    border-radius: 9px;
    box-shadow: none;
}

.m-manual.manual-reader .manual-search .search-form .form-control:focus {
    border-color: rgba(var(--md-primary-rgb), .45);
    box-shadow: 0 0 0 3px var(--md-primary-soft);
}

.m-manual.manual-reader .manual-search .btn-search {
    top: 4px;
    right: 5px;
    color: var(--md-text-muted);
    background: transparent;
}

.m-manual.manual-reader .manual-search .search-result {
    right: 12px;
    left: 12px;
    width: auto;
    border-top-color: var(--md-border-light);
}

.m-manual.manual-reader .manual-search .search-list {
    padding: 6px 0 24px;
}

.m-manual.manual-reader .manual-search .search-list a {
    height: auto;
    min-height: 36px;
    margin: 2px 0;
    padding: 7px 10px;
    color: var(--md-text-secondary);
    line-height: 22px;
    text-overflow: ellipsis;
    border-radius: 8px;
}

.m-manual.manual-reader .manual-search .search-list a:hover,
.m-manual.manual-reader .manual-search .search-list a:focus {
    color: var(--md-text);
    text-decoration: none;
    background: var(--md-bg-subtle);
}

.m-manual.manual-reader .manual-search .search-list a.active {
    color: var(--md-primary);
    font-weight: 600;
    background: var(--md-primary-soft);
    box-shadow: inset 3px 0 0 var(--md-primary);
}

.m-manual.manual-reader .manual-left .m-copyright {
    color: var(--md-text-muted);
    background: color-mix(in srgb, var(--md-bg-card) 96%, var(--md-bg-subtle));
    border-top-color: var(--md-border-light);
}

.m-manual.manual-reader .manual-right {
    top: 58px;
    left: var(--reader-sidebar-width);
    background: var(--md-bg);
}

.m-manual.manual-reader.manual-fullscreen-active .manual-left {
    width: 0;
}

.m-manual.manual-reader.manual-fullscreen-active .manual-right {
    left: 0;
}

#manual-vsplitbar {
    position: absolute;
    top: 58px;
    bottom: 0;
    left: calc(var(--reader-sidebar-width) - 4px);
    z-index: 302;
    display: none;
    width: 8px;
    cursor: col-resize;
    user-select: none;
    touch-action: none;
    outline: none;
}

#manual-vsplitbar::before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 3px;
    width: 1px;
    content: "";
    background: transparent;
    transition: width .15s ease, background-color .15s ease;
}

#manual-vsplitbar:hover::before,
#manual-vsplitbar:focus-visible::before,
.m-manual.manual-reader.reader-sidebar-resizing #manual-vsplitbar::before {
    width: 2px;
    background: rgba(var(--md-primary-rgb), .62);
}

.m-manual.manual-reader.reader-sidebar-resizing,
.m-manual.manual-reader.reader-sidebar-resizing * {
    cursor: col-resize !important;
    user-select: none !important;
}

.m-manual.manual-reader .manual-article {
    max-width: 1440px;
    min-height: calc(100vh - 58px);
    margin: 0 auto;
    background: transparent;
}

.m-manual.manual-reader .article-head {
    padding-top: 42px;
    background: transparent;
    border: 0;
}

.m-manual.manual-reader #article-title {
    width: calc(100% - 72px);
    max-width: 1120px;
    margin: 0 auto;
    color: var(--md-text);
    font-size: clamp(28px, 3vw, 38px);
    font-weight: 750;
    line-height: 1.25;
    letter-spacing: -.045em;
}

.m-manual.manual-reader .article-content {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    max-width: none;
    padding-right: 0;
    padding-left: 0;
    background: transparent;
}

.m-manual.manual-reader #page-content {
    box-sizing: border-box;
    width: calc(100% - 72px);
    max-width: 1120px;
    margin: 0 auto;
    padding: 42px 48px 80px;
    color: var(--md-text);
    font-size: 15px;
    line-height: 1.82;
    background: var(--md-bg-card);
    border: 1px solid var(--md-border-light);
    border-radius: 16px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .025);
}

.m-manual.manual-reader #page-content h1,
.m-manual.manual-reader #page-content h2,
.m-manual.manual-reader #page-content h3,
.m-manual.manual-reader #page-content h4 {
    position: relative;
    color: var(--md-text);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -.025em;
    scroll-margin-top: 82px;
}

.m-manual.manual-reader #page-content h2 {
    margin-top: 2.4em;
    padding-bottom: .55em;
    font-size: 24px;
    border-bottom: 1px solid var(--md-border-light);
}

.m-manual.manual-reader #page-content h3 {
    margin-top: 2em;
    font-size: 19px;
}

.m-manual.manual-reader #page-content p {
    margin: 1em 0;
}

.m-manual.manual-reader #page-content a {
    color: var(--md-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(var(--md-primary-rgb), .25);
}

.m-manual.manual-reader #page-content a:hover {
    border-bottom-color: var(--md-primary);
}

.m-manual.manual-reader #page-content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 24px auto;
    border: 1px solid var(--md-border-light);
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, .08);
}

.m-manual.manual-reader #page-content table {
    width: 100%;
    margin: 24px 0;
    overflow: hidden;
    font-size: 13px;
    border: 1px solid var(--md-border);
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 10px;
}

.m-manual.manual-reader #page-content th {
    color: var(--md-text);
    font-weight: 650;
    background: var(--md-bg-subtle);
}

.m-manual.manual-reader #page-content th,
.m-manual.manual-reader #page-content td {
    padding: 11px 14px;
    border-right: 1px solid var(--md-border-light);
    border-bottom: 1px solid var(--md-border-light);
}

.m-manual.manual-reader #page-content tr:last-child td {
    border-bottom: 0;
}

.m-manual.manual-reader #page-content blockquote {
    margin: 22px 0;
    padding: 14px 18px;
    color: var(--md-text-secondary);
    background: var(--md-primary-softer);
    border: 0;
    border-left: 3px solid var(--md-primary);
    border-radius: 0 10px 10px 0;
}

.m-manual.manual-reader #page-content pre {
    margin: 22px 0;
    padding: 18px 20px;
    overflow: auto;
    color: #e2e8f0;
    background: #0f172a !important;
    border: 1px solid #1e293b;
    border-radius: 12px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, .12);
}

.m-manual.manual-reader #page-content code {
    padding: 2px 6px;
    color: #be123c;
    font-family: var(--md-font-mono);
    font-size: .88em;
    background: #fff1f2;
    border-radius: 5px;
}

.m-manual.manual-reader #page-content pre code {
    padding: 0;
    color: inherit;
    background: transparent;
}

.m-manual.manual-reader .manual-progress {
    top: 57px;
    height: 2px;
    background: transparent;
}

.m-manual.manual-reader .manual-progress .progress-bar {
    height: 2px;
    background: linear-gradient(90deg, var(--md-primary), #38bdf8);
    box-shadow: none;
}

.m-manual.manual-reader .view-backtop {
    display: inline-grid;
    place-items: center;
    width: 40px;
    height: 40px;
    color: var(--md-text-secondary);
    background: var(--md-bg-card);
    border: 1px solid var(--md-border);
    border-radius: 11px;
    box-shadow: var(--md-shadow);
}

.m-manual.manual-reader .m-comment {
    max-width: 820px;
    margin: 24px auto 60px;
    padding: 28px;
    background: var(--md-bg-card);
    border: 1px solid var(--md-border-light);
    border-radius: 14px;
}

html[data-theme="dark"] .m-manual.manual-reader .manual-head {
    background: rgba(23, 24, 28, .9);
}

html[data-theme="dark"] .m-manual.manual-reader #page-content code {
    color: #fda4af;
    background: rgba(190, 18, 60, .18);
}

@media (max-width: 1100px) {
    .m-manual.manual-reader #page-content {
        width: calc(100% - 40px);
    }

    .m-manual.manual-reader #article-title {
        width: calc(100% - 40px);
    }
}

@media (max-width: 992px) {
    .m-manual.manual-reader .manual-article .article-head {
        display: block;
    }

    .m-manual.manual-reader .manual-left {
        top: 0;
        left: 0;
        width: min(86vw, 320px);
        max-width: 320px;
        transform: translateX(-100%);
        transition: transform .2s cubic-bezier(.2, 0, 0, 1);
        will-change: transform;
    }

    .m-manual.manual-reader.manual-mobile-show-left .manual-left {
        left: 0;
        transform: translateX(0);
    }

    .m-manual.manual-reader .manual-right {
        top: 58px;
        left: 0;
    }

    #manual-vsplitbar {
        display: none !important;
    }

    .m-manual.manual-reader .manual-mask {
        transition: opacity .18s ease;
    }
}

@media (max-width: 839px) {
    .m-manual.manual-reader .manual-head {
        height: 54px;
        min-height: 54px;
    }

    .m-manual.manual-reader .manual-title {
        height: 54px;
    }

    .m-manual.manual-reader .manual-left {
        top: 0;
        width: min(86vw, 320px);
        box-shadow: 16px 0 40px rgba(15, 23, 42, .14);
    }

    .m-manual.manual-reader .manual-right {
        top: 54px;
        left: 0;
    }

    .m-manual.manual-reader .manual-menu {
        display: none;
    }

    .m-manual.manual-reader .btn-mobile {
        top: 10px;
        height: 34px;
        border-color: var(--md-border);
        border-radius: 9px;
    }

    .m-manual.manual-reader .article-head {
        padding-top: 30px;
    }

    .m-manual.manual-reader #article-title {
        width: calc(100% - 32px);
        padding: 0 22px;
        font-size: 28px;
    }

    .m-manual.manual-reader #page-content {
        width: calc(100% - 24px);
        margin: 0 auto;
        padding: 30px 22px 60px;
        font-size: 14px;
        border-radius: 12px;
    }

    .m-manual.manual-reader .m-comment {
        margin: 18px 12px 40px;
        padding: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .m-manual.manual-reader * {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }
}