.outline-icon,.outline-icon__svg{width:1em;height:1em;overflow:hidden}.outline-icon__svg,.outline-toolbar__icon{fill:currentcolor;-webkit-transform:translate(-50%,-50%)}.outline-chapters__title,.outline-drawer__title,.outline-drawer_ttb{border-bottom:1px solid #dcdfe6}:root{--outline-zIndex:2000;--outline-sticky-height:100%;--outline-chapters-width:100%}.outline-icon{position:relative;z-index:1;display:inline-block;vertical-align:middle}.outline-heading__anchor,.outline-icon_hidden{display:none}.outline-icon__svg{position:absolute;z-index:2;top:50%;left:50%;transform:translate(-50%,-50%)}.outline-heading__anchor:hover,.outline-heading__anchor:link,.outline-heading__anchor:visited{color:#999;text-decoration:none}.outline-heading__anchor:hover{color:#507afe}.outline-heading:hover .outline-heading__anchor{display:inline-block}.outline-heading_start:hover{overflow:visible}.outline-heading_start .outline-heading__anchor{position:absolute;z-index:2;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%);left:-1em}.outline-drawer{position:relative;z-index:-1;top:0;left:0;margin:0;width:100%;height:100%;-webkit-box-sizing:border-box;box-sizing:border-box;visibility:hidden;overflow:hidden}.outline-drawer__modal{-webkit-box-shadow:0 0 6px 1px #dcdfe6;box-shadow:0 0 6px 1px #dcdfe6;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-ms-flex-wrap:nowrap;flex-wrap:nowrap;position:absolute;z-index:21;height:100%;background-color:#fff;-webkit-transition-duration:.4s;transition-duration:.4s;overflow:hidden}.outline-drawer__footer,.outline-drawer__header,.outline-drawer__main{width:100%;-webkit-box-sizing:border-box;box-sizing:border-box}.outline-drawer__footer,.outline-drawer__header{-ms-flex-negative:0;flex-shrink:0}.outline-drawer__footer,.outline-drawer__main,.outline-drawer__title{padding:0 16px}.outline-drawer__header,.outline-drawer__title{position:relative;z-index:1;margin:0 auto;height:52px;line-height:52px;overflow:hidden}.outline-drawer__title{font-size:16px;font-weight:400;margin:0 16px;-webkit-box-sizing:border-box;box-sizing:border-box}.outline-drawer__close{position:absolute;z-index:2;top:50%;right:12px;width:20px;height:20px;line-height:20px;color:#999;font-size:20px;text-align:center;cursor:pointer;-webkit-transform:translateY(-50%);transform:translateY(-50%);overflow:hidden}.outline-drawer__close .outline-icon{position:absolute;z-index:2;top:0;left:0}.outline-drawer__close:hover{color:#666}.outline-drawer__main{-webkit-box-flex:1;-ms-flex:1;flex:1;overflow:auto}.outline-drawer__footer{margin:0 auto;text-align:right;overflow:hidden}.outline-drawer__overlay{content:'';position:relative;z-index:1;top:0;left:0;width:100%;height:100%;background-color:#fff;opacity:.1;overflow:hidden}.outline-drawer_ltr.outline-drawer_tiny,.outline-drawer_rtl.outline-drawer_tiny{width:280px}.outline-drawer_ltr.outline-drawer_mini,.outline-drawer_rtl.outline-drawer_mini{width:480px}.outline-drawer_ltr.outline-drawer_small,.outline-drawer_rtl.outline-drawer_small{width:540px}.outline-drawer_ltr.outline-drawer_regular,.outline-drawer_rtl.outline-drawer_regular{width:680px}.outline-drawer_ltr.outline-drawer_medium,.outline-drawer_rtl.outline-drawer_medium{width:720px}.outline-drawer_ltr.outline-drawer_large,.outline-drawer_rtl.outline-drawer_large{width:960px}.outline-drawer_rtl{border-left:1px solid #dcdfe6}.outline-drawer_rtl.outline-drawer_tiny.outline-drawer_closed{right:-290px}.outline-drawer_rtl.outline-drawer_mini.outline-drawer_closed{right:-490px}.outline-drawer_rtl.outline-drawer_small.outline-drawer_closed{right:-550px}.outline-drawer_rtl.outline-drawer_regular.outline-drawer_closed{right:-690px}.outline-drawer_rtl.outline-drawer_medium.outline-drawer_closed{right:-730px}.outline-drawer_rtl.outline-drawer_large.outline-drawer_closed{right:-970px}.outline-drawer_ltr{border-right:1px solid #dcdfe6}.outline-drawer_ltr.outline-drawer_tiny.outline-drawer_closed{left:-290px}.outline-drawer_ltr.outline-drawer_mini.outline-drawer_closed{left:-490px}.outline-drawer_ltr.outline-drawer_small.outline-drawer_closed{left:-550px}.outline-drawer_ltr.outline-drawer_regular.outline-drawer_closed{left:-690px}.outline-drawer_ltr.outline-drawer_medium.outline-drawer_closed{left:-730px}.outline-drawer_ltr.outline-drawer_large.outline-drawer_closed{left:-970px}.outline-drawer_btt,.outline-drawer_ttb{left:0;width:100%}.outline-drawer_btt.outline-drawer_tiny,.outline-drawer_ttb.outline-drawer_tiny{height:240px}.outline-drawer_btt.outline-drawer_mini,.outline-drawer_ttb.outline-drawer_mini{height:320px}.outline-drawer_btt.outline-drawer_small,.outline-drawer_ttb.outline-drawer_small{height:360px}.outline-drawer_btt.outline-drawer_regular,.outline-drawer_ttb.outline-drawer_regular{height:400px}.outline-drawer_btt.outline-drawer_medium,.outline-drawer_ttb.outline-drawer_medium{height:440px}.outline-drawer_btt.outline-drawer_large,.outline-drawer_ttb.outline-drawer_large{height:480px}.outline-drawer_ttb.outline-drawer_tiny.outline-drawer_closed{top:-250px}.outline-drawer_ttb.outline-drawer_mini.outline-drawer_closed{top:-330px}.outline-drawer_ttb.outline-drawer_small.outline-drawer_closed{top:-370px}.outline-drawer_ttb.outline-drawer_regular.outline-drawer_closed{top:-410px}.outline-drawer_ttb.outline-drawer_medium.outline-drawer_closed{top:-450px}.outline-drawer_ttb.outline-drawer_large.outline-drawer_closed{top:-490px}.outline-drawer_btt{top:initial;border-top:1px solid #dcdfe6}.outline-drawer_btt.outline-drawer_tiny.outline-drawer_closed{bottom:-250px}.outline-drawer_btt.outline-drawer_mini.outline-drawer_closed{bottom:-330px}.outline-drawer_btt.outline-drawer_small.outline-drawer_closed{bottom:-370px}.outline-drawer_btt.outline-drawer_regular.outline-drawer_closed{bottom:-410px}.outline-drawer_btt.outline-drawer_medium.outline-drawer_closed{bottom:-450px}.outline-drawer_btt.outline-drawer_large.outline-drawer_closed{bottom:-490px}.outline-drawer_opened{visibility:visible;z-index:var(--outline-zIndex)}.outline-drawer_opened.outline-drawer{position:fixed}.outline-drawer_opened.outline-drawer_rtl{right:0}.outline-drawer_opened.outline-drawer_ltr{left:0}.outline-drawer_opened.outline-drawer_ttb{top:0}.outline-drawer_opened.outline-drawer_btt{bottom:0}.outline-drawer_offset.outline-drawer_ltr,.outline-drawer_offset.outline-drawer_rtl{height:calc(100% - 4em);top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%)}.outline-drawer_offset.outline-drawer_btt,.outline-drawer_offset.outline-drawer_ttb{width:calc(100% - 4em);left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%)}.outline-drawer_offset.outline-drawer_opened.outline-drawer_rtl{right:2em}.outline-drawer_offset.outline-drawer_opened.outline-drawer_ltr{left:2em}.outline-drawer_offset.outline-drawer_opened.outline-drawer_ttb{top:2em}.outline-drawer_offset.outline-drawer_opened.outline-drawer_btt{bottom:2em}.outline-drawer_auto.outline-drawer_ltr,.outline-drawer_auto.outline-drawer_rtl{height:auto;max-height:calc(100% - 4em)}.outline-drawer_full{padding:0}.outline-chapters{position:relative;z-index:1;margin:0;width:var(--outline-chapters-width);overflow:auto}.outline-chapters-parent{-webkit-transition:.3s ease-in-out;transition:.3s ease-in-out}.outline-chapters__title{margin:0 16px;height:40px;line-height:40px;padding:0 16px;font-size:16px;font-weight:400;overflow:hidden}.outline-chapters__main{position:relative;z-index:1;margin:0;overflow:hidden}.outline-chapters__item,.outline-chapters__list,.outline-chapters__subject{position:relative;z-index:2;margin:0;padding:0;list-style-type:none;overflow:hidden}.outline-chapters__list{padding:.5em 0}.outline-chapters__subject{padding-left:1em}.outline-chapters__item{margin:0;line-height:30px;font-size:13px;overflow:hidden}.outline-chapters__placeholder{position:absolute;z-index:1;top:0;left:0;width:100%;height:30px;background-color:#f7f8f9;border-left:2px solid var(--bearhoney-accent-color);-webkit-transition-duration:.2s;transition-duration:.2s;-webkit-box-sizing:border-box;box-sizing:border-box;overflow:hidden}.outline-message,.outline-toolbar__button{-webkit-box-shadow:0 0 6px 1px #dcdfe6;background-color:#fff}.outline-chapters__anchor{white-space:nowrap;text-overflow:ellipsis;overflow:hidden;display:block;padding:0 1.5em}.outline-chapters__anchor:hover,.outline-chapters__anchor:link,.outline-chapters__anchor:visited{text-decoration:none;color:#555}.outline-chapters__anchor:hover{color:var(--bearhoney-accent-color)}.outline-chapters__code{padding-right:.5em}.outline-chapters_highlight.outline-chapters__anchor:hover,.outline-chapters_highlight.outline-chapters__anchor:link,.outline-chapters_highlight.outline-chapters__anchor:visited{color:var(--bearhoney-accent-color);font-weight:700}.outline-chapters_fixed,.outline-chapters_sticky{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:nowrap;flex-wrap:nowrap;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;z-index:var(--outline-zIndex);top:0;overflow:hidden}.outline-chapters_hidden,.outline-toolbar__button.hide{display:none}.outline-chapters_fixed .outline-chapters__main,.outline-chapters_fixed .outline-chapters__title,.outline-chapters_sticky .outline-chapters__main,.outline-chapters_sticky .outline-chapters__title{-webkit-box-sizing:border-box;box-sizing:border-box}.outline-chapters_fixed .outline-chapters__title,.outline-chapters_sticky .outline-chapters__title{-ms-flex-negative:0;flex-shrink:0}.outline-chapters_fixed .outline-chapters__main,.outline-chapters_sticky .outline-chapters__main{-webkit-box-flex:1;-ms-flex:1;flex:1;overflow:auto}.outline-chapters_sticky{position:sticky;max-height:var(--outline-sticky-height)}.outline-chapters_fixed{position:fixed;max-height:100%}.outline-chapters_folded{width:0;overflow:hidden}.outline-toolbar{position:fixed;z-index:99999;margin:0;-webkit-transition-duration:.3s;transition-duration:.3s;overflow:hidden}.outline-toolbar__button{box-shadow:0 0 6px 1px #dcdfe6;position:relative;z-index:1;margin:10px;width:36px;height:36px;border:1px solid #dcdfe6;border-radius:3px;-webkit-box-sizing:border-box;box-sizing:border-box;cursor:pointer;text-align:center;color:#999;overflow:hidden}.outline-toolbar__button:hover{color:var(--bearhoney-accent-color);border-color:var(--bearhoney-accent-color)}.outline-toolbar__anchor:hover,.outline-toolbar__anchor:link,.outline-toolbar__anchor:visited{color:#999;text-decoration:none}.outline-toolbar__anchor:hover{color:var(--bearhoney-accent-color)}.outline-toolbar__icon{position:absolute;z-index:2;top:50%;left:50%;width:20px;height:20px;transform:translate(-50%,-50%);overflow:hidden}.outline-toolbar_active.outline-toolbar__button{color:#fff;background-color:var(--bearhoney-accent-color);border-color:var(--bearhoney-accent-color)}.outline-toolbar_active .outline-toolbar__anchor:hover,.outline-toolbar_active .outline-toolbar__anchor:link,.outline-toolbar_active .outline-toolbar__anchor:visited,.outline-toolbar_active.outline-toolbar__button:hover{color:#fff}.outline-toolbar_rounded.outline-toolbar__button{border-radius:18px}.outline-toolbar_disabled .outline-toolbar__anchor:hover,.outline-toolbar_disabled .outline-toolbar__anchor:link,.outline-toolbar_disabled .outline-toolbar__anchor:visited,.outline-toolbar_disabled .outline-toolbar__button,.outline-toolbar_disabled.outline-toolbar__anchor:hover,.outline-toolbar_disabled.outline-toolbar__anchor:link,.outline-toolbar_disabled.outline-toolbar__anchor:visited,.outline-toolbar_disabled.outline-toolbar__button{cursor:not-allowed;color:#999}.outline-toolbar_disabled .outline-toolbar__anchor:hover:hover,.outline-toolbar_disabled .outline-toolbar__anchor:link:hover,.outline-toolbar_disabled .outline-toolbar__anchor:visited:hover,.outline-toolbar_disabled .outline-toolbar__button:hover,.outline-toolbar_disabled.outline-toolbar__anchor:hover:hover,.outline-toolbar_disabled.outline-toolbar__anchor:link:hover,.outline-toolbar_disabled.outline-toolbar__anchor:visited:hover,.outline-toolbar_disabled.outline-toolbar__button:hover{color:#999}.outline-message,.outline-message__content{margin:0;font-size:13px;color:#666;height:40px;line-height:40px}.outline-toolbar_disabled .outline-toolbar__button,.outline-toolbar_disabled.outline-toolbar__button{background-color:#f5f5f5}.outline-toolbar_btt,.outline-toolbar_ttb{left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%)}.outline-toolbar_btt .outline-toolbar__button,.outline-toolbar_ttb .outline-toolbar__button{display:inline-block}.outline-message_hidden,.outline-message_plain .outline-message__icon,.outline-message_plain .outline-message__icon .outline-icon,.outline-print,.outline-print__close,.outline-toolbar_btt .outline-toolbar__button.outline-toolbar_hidden,.outline-toolbar_ltr .outline-toolbar__button.outline-toolbar_hidden,.outline-toolbar_rtl .outline-toolbar__button.outline-toolbar_hidden,.outline-toolbar_ttb .outline-toolbar__button.outline-toolbar_hidden{display:none}.outline-toolbar_ttb{top:12px}.outline-toolbar_ttb.outline-toolbar_hidden{top:-56px}.outline-toolbar_btt{bottom:12px}.outline-toolbar_btt.outline-toolbar_hidden{bottom:-56px}.outline-toolbar_ltr,.outline-toolbar_rtl{-webkit-transform:translateY(-50%);transform:translateY(-50%);width:56px}.outline-toolbar_rtl{top:50%;right:12px}.outline-toolbar_rtl.outline-toolbar_hidden{right:-86px}.outline-toolbar_ltr{top:50%;left:12px}.outline-toolbar_ltr.outline-toolbar_hidden{left:-86px}.outline-message{border-radius:3px;box-shadow:0 0 6px 1px #dcdfe6;position:fixed;z-index:9999;opacity:.1;top:-50px;left:50%;padding:0 50px;-webkit-transition:all .5s ease-in-out;transition:all .5s ease-in-out;-webkit-transform:translateX(-50%);transform:translateX(-50%);overflow:hidden}.outline-message__content{white-space:nowrap;text-overflow:ellipsis;max-width:700px;overflow:hidden}.outline-message__close,.outline-message__icon{position:absolute;z-index:2;top:0;width:40px;height:40px;line-height:40px;text-align:center;overflow:hidden}.outline-message__icon{left:0;color:#fff}.outline-message__icon .outline-icon{position:absolute;z-index:2;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}.outline-message__close{right:0;cursor:pointer;color:#999}.outline-message__close .outline-icon{position:absolute;z-index:2;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}.outline-message__close:hover{color:#666}.outline-message_info .outline-message__icon{background-color:#507afe}.outline-message_warning .outline-message__icon{background-color:#ff9901}.outline-message_success .outline-message__icon{background-color:var(--bearhoney-accent-color)}.outline-message_error .outline-message__icon{background-color:#ff5d5d}.outline-message_plain{min-width:190px;padding:0 50px 0 15px}.outline-message_light,.outline-message_round.outline-message_default{min-width:180px;padding:0 40px}.outline-message_plain.outline-message_info{border-left:5px solid #507afe;background-color:#ecf8ff}.outline-message_plain.outline-message_warning{border-left:5px solid #ff9901;background-color:#fffbe6}.outline-message_plain.outline-message_success{border-left:5px solid var(--bearhoney-accent-color);background-color:#e1f6eb}.outline-message_plain.outline-message_error{border-left:5px solid #ff5d5d;background-color:#fff1f0}.outline-message_plain .outline-message__icon{width:0}.outline-message_light.outline-message_info .outline-message__icon{color:#507afe}.outline-message_light.outline-message_warning .outline-message__icon{color:#ff9901}.outline-message_light.outline-message_success .outline-message__icon{color:var(--bearhoney-accent-color)}.outline-message_light.outline-message_error .outline-message__icon{color:#ff5d5d}.outline-message_light .outline-message__icon{background-color:#fff}.outline-message_round{border-radius:20px}.outline-message_round.outline-message_default .outline-message__icon{border-radius:10px;top:10px;left:10px;width:20px;height:20px;line-height:20px}.outline-message_round.outline-message_default.outline-message_full-width{min-width:200px;padding:0 20px 0 40px}.outline-message_round.outline-message_plain{min-width:195px;padding:0 40px 0 20px}.outline-message_round.outline-message_plain.outline-message_full-width{min-width:215px;padding:0 20px}.outline-message_full-width{min-width:200px;padding:0 10px 0 50px}.outline-message_full-width.outline-message_plain{min-width:230px;padding:0 10px 0 15px}.outline-message_full-width.outline-message_light{min-width:210px;padding:0 10px 0 40px}.outline-message_visible{opacity:1}::-webkit-scrollbar{width:7px;height:7px;-webkit-border-radius:5px}::-webkit-scrollbar-track-piece{-webkit-border-radius:5px}::-webkit-scrollbar-thumb:vertical{background-color:rgba(0,0,0,.25);-webkit-border-radius:5px}::-webkit-scrollbar-thumb:horizontal{background-color:rgba(0,0,0,.25);-webkit-border-radius:5px}::-webkit-scrollbar:hover{background-color:rgba(0,0,0,.15)}::-webkit-scrollbar-thumb:hover{background-color:rgba(0,0,0,.35)}.outline-print__title{margin:.67em 0!important;text-align:center!important;font-family:'Microsoft YaHei UI',Arial,sans-serif;font-weight:400;overflow:hidden}@media print{.outline-print h1,.outline-print.outline-reading .outline-print h1,.outline-print.outline-reading .outline-print__title,.outline-print__title{margin:13.4pt 0 28pt!important;text-align:center!important;font-size:20pt!important}body,html{height:initial!important}.outline-print{display:block!important;overflow:hidden}.outline-print.outline-reading .outline-print__close,.outline-print_sibling{display:none!important}.outline-print.outline-reading{position:relative!important;height:auto!important;padding:0!important;overflow:hidden!important}.outline-print pre{padding:1em!important;border:1px solid #ddd!important;border-radius:4px!important}.outline-print code,.outline-print pre{background-color:#fff!important}.outline-print img,.outline-print svg,.outline-print table{-webkit-column-break-inside:avoid;-moz-column-break-inside:avoid;break-inside:avoid}}.outline-reading,.outline-reading .outline-print__close{display:block;position:fixed;margin:0;background-color:#fff}.outline-reading{z-index:2;top:0;left:0;width:100%;height:100%;-webkit-box-sizing:border-box;box-sizing:border-box;padding:3em 4em;overflow:auto}.outline-reading .outline-print__close{z-index:3;top:50%;right:22px;width:36px;height:36px;border-radius:18px;border:1px solid #dcdfe6;line-height:30px;text-align:center;-webkit-transform:translateY(-50%);transform:translateY(-50%);cursor:pointer;-webkit-box-shadow:0 0 8px #ddd;box-shadow:0 0 8px #ddd;color:#999;overflow:hidden}.outline-reading .outline-print__close:hover{background-color:var(--bearhoney-accent-color);color:#fff}.outline-reading .outline-print h1,.outline-reading .outline-print__title{margin:.67em 0!important;line-height:1.3em;font-size:3.5em}.outline-reading_hidden,.outline-reading_hidden.outline-print_sibling{display:none!important}.outline-reading_hidden.outline-print_sibling.wrapper.post{display:none}@media (max-width:480px){.outline-reading{padding:0 1.25em}.outline-reading .outline-print__close{top:24px;right:12px;width:22px;height:22px;line-height:22px;border-radius:11px;opacity:.8}.outline-reading .outline-print__title{font-size:2em}}.outline-toolbar__button.up,.outline-toolbar__button.print,.outline-toolbar__button.down{display:none!important;} [data-theme=dark] .outline-reading{background-color:#000!important} .outline-reading h1{font-size:2.5rem!important}.outline-reading h2{font-size:2rem!important}.outline-reading h3{font-size:1.75rem}.outline-reading h4{font-size:1.5rem}.outline-reading h5{font-size:1.25rem}.outline-reading h6{font-size:1rem}#outline-print__article .post-TianliGPT{display:none}