@keyframes skeleton-keyframes-data-v-a13d394c{0%{background-position:0 0}to{background-position:480px 0}}.copy-right[data-v-a13d394c]{text-align:center;font-size:14px;color:#909090;margin-bottom:40px}.copy-right a[data-v-a13d394c]{color:inherit}@media (max-width:700px){.copy-right[data-v-a13d394c]{display:none}}@keyframes skeleton-keyframes-data-v-4d55480d{0%{background-position:0 0}to{background-position:480px 0}}.user-auth[data-v-4d55480d]{position:absolute;right:15px}.user-auth .nav-item a[data-v-4d55480d]{color:#71777c}.user-auth .nav-item.active>.icon[data-v-4d55480d],.user-auth .nav-item.active>a[data-v-4d55480d]{color:#007fff}.nav-menu-item>a[data-v-4d55480d]{display:block;color:#71777c}.avatar[data-v-4d55480d]{width:2.5rem;height:2.5rem;border-radius:50%}.nav-list[data-v-4d55480d]{justify-content:flex-end;position:relative}.nav-item[data-v-4d55480d],.nav-list[data-v-4d55480d]{display:flex;align-items:center;height:100%;margin:0}.nav-item[data-v-4d55480d]{color:#71777c;font-size:1.33rem;justify-content:center;cursor:pointer}.nav-item:hover>a[data-v-4d55480d]{color:#007fff}.nav-item.menu[data-v-4d55480d]{position:relative}.nav-item.auth[data-v-4d55480d]{color:var(--juejin-font-white);font-size:14px;width:60px;height:28px;line-height:28px;background:var(--juejin-brand-1-normal);box-sizing:border-box;border-radius:4px}.nav-item .icon-coupons path[data-v-4d55480d]:first-child{fill:#b2bac2}.nav-item .nav-menu[data-v-4d55480d]{position:absolute;width:11rem;left:50%;top:100%;transform:translateX(-50%);margin:0;padding:0;list-style:none;background-color:#fff;box-shadow:0 1px 2px 0 rgba(0,0,0,.1);border:1px solid rgba(177,180,185,.45);border-radius:4px;font-size:1.2rem}.nav-item .nav-menu .nav-menu-item-group[data-v-4d55480d]{padding:1rem 0}.nav-item .nav-menu .nav-menu-item[data-v-4d55480d]{font-size:1.3rem;cursor:pointer}.nav-item .nav-menu .nav-menu-item[data-v-4d55480d]:hover{background-color:hsla(0,0%,94.9%,.5)}.nav-item .nav-menu .nav-menu-item>a[data-v-4d55480d]{display:flex;align-items:center;padding:.5rem 1rem}.nav-item .nav-menu .nav-menu-item>a>span[data-v-4d55480d]{margin-left:0;flex-grow:1}.nav-item .nav-menu .more[data-v-4d55480d]{position:relative}.nav-item .nav-menu .more:hover .more-dropdown-list[data-v-4d55480d]{display:block}.nav-item .nav-menu .more .more-icon[data-v-4d55480d]{float:right;color:#b2bac2;font-size:1.2rem;line-height:2rem}.nav-item .nav-menu.user-dropdown-list[data-v-4d55480d]{width:13rem;right:0;left:auto;transform:translateX(0)}.nav-item .nav-menu.user-dropdown-list .nav-menu-item-group[data-v-4d55480d]:not(:last-child){border-bottom:1px solid rgba(0,0,0,.04)}.nav-item .more-dropdown-list[data-v-4d55480d]{position:absolute;left:auto;top:0;right:102%;transform:translateX(0);display:none}.nav-item .more-dropdown-list[data-v-4d55480d]:after{content:"";position:absolute;top:0;left:100%;width:1.3rem;height:4rem}.nav-item .notification[data-v-4d55480d]{position:relative}.nav-item .notification .count[data-v-4d55480d]{position:absolute;left:50%;bottom:43%;margin:0;padding:.4rem .67rem;font-size:1rem;line-height:1;text-align:center;color:#f1f1f1;background-color:#007fff;border-radius:3rem;border:2px solid #fff;word-break:normal}.nav-item .fengwei[data-v-4d55480d]{display:inline-block;width:1em;height:1em;margin-right:.8rem;font-size:1.2em;vertical-align:middle;color:#b2bac2}@keyframes skeleton-keyframes-data-v-49531244{0%{background-position:0 0}to{background-position:480px 0}}.wrapper[data-v-49531244] .byte-affix{position:fixed;top:0;width:100%!important;height:auto!important;z-index:999;transition:all .2s;transform:translate3d(0,-3.67rem,0)}.wrapper.visible[data-v-49531244] .byte-affix{transform:translateZ(0)}.book-sticky-header[data-v-49531244]{display:flex;justify-content:space-between;box-sizing:border-box;width:100%;height:3.67rem;background-color:var(--juejin-navigation);padding:0 19px;position:relative}.book-sticky-header[data-v-49531244]:after{display:inline-block;position:absolute;bottom:0;left:0;right:0;height:1px;content:" ";background:var(--juejin-gray-1-2)}@media (-webkit-min-device-pixel-ratio:2){.book-sticky-header[data-v-49531244]:after{transform:scaleY(.5)}}@media (-webkit-min-device-pixel-ratio:3){.book-sticky-header[data-v-49531244]:after{transform:scaleY(.333)}}.book-sticky-header .course[data-v-49531244]{font-size:16px;font-weight:500;color:#1e80ff;height:3.67rem;line-height:3.67rem}.book-sticky-header .course .course-img[data-v-49531244]{vertical-align:middle}.book-sticky-header .return-section[data-v-49531244]{line-height:3.67rem;font-size:14px;color:#4e5969}.book-sticky-header .return-section img[data-v-49531244]{vertical-align:middle}.book-sticky-header .return-section span[data-v-49531244]{display:inline-block;vertical-align:middle}.book-sticky-header .right-box[data-v-49531244]{display:flex;align-items:center;font-size:14px}.book-sticky-header .right-box .my-course[data-v-49531244]{margin-right:66px;color:var(--juejin-brand-1-normal);width:70px;height:26px;line-height:26px;background:rgba(30,128,255,.05);border:1px solid rgba(30,128,255,.3);border-radius:4px;text-align:center}.book-sticky-header .right-box .is-login-course[data-v-49531244]{margin-right:40px}.book-sticky-header .right-box .vip-title[data-v-49531244]{display:flex;align-items:center;margin-right:16px}.book-sticky-header .right-box .vip-title .vip-img[data-v-49531244]{width:24px;height:24px}.book-sticky-header .right-box .vip-title .vip-words[data-v-49531244]{margin-left:4px;font-weight:400;font-size:14px;line-height:22px;color:var(--juejin-font-2)}.book-sticky-header .right-box[data-v-49531244] .user-dropdown-list{right:20px}.book-sticky-header .right-box[data-v-49531244] .nav-menu{position:fixed;top:44px;z-index:999}@keyframes skeleton-keyframes-data-v-ffd280d8{0%{background-position:0 0}to{background-position:480px 0}}.common-nav-header[data-v-ffd280d8]{background-color:var(--juejin-background)}.common-nav-header .main-header[data-v-ffd280d8]{position:fixed;left:0;top:0;right:0}.common-nav-header .header-container-wrap[data-v-ffd280d8]{position:relative;box-sizing:border-box;margin:5rem auto 0;padding:20px 0}.common-nav-header .header-container[data-v-ffd280d8]{min-height:calc(100vh - 5rem - 40px)}@media (max-width:960px){.common-nav-header .header-container-wrap[data-v-ffd280d8]{width:auto!important;padding:0}.common-nav-header .header-container[data-v-ffd280d8]{min-height:calc(100vh - 5rem)}}@media (max-width:600px){.common-nav-header .header-container-wrap[data-v-ffd280d8]{width:100%!important;padding:0;margin:3.67rem 0 0}.common-nav-header .header-container[data-v-ffd280d8]{min-height:unset}}@keyframes skeleton-keyframes-data-v-4a148f31{0%{background-position:0 0}to{background-position:480px 0}}.course-aside[data-v-4a148f31]{position:absolute;right:0;top:0;width:240px}.course-aside .sticky-section[data-v-4a148f31]{position:fixed;top:80px}.course-aside .sticky-section .recommend-box[data-v-4a148f31]{height:72px;padding:0 16px;margin:16px 0;border-radius:4px;background-color:var(--juejin-layer-1);display:flex;align-items:center;justify-content:space-between}.course-aside .sticky-section .recommend-box .recommend-desc[data-v-4a148f31],.course-aside .sticky-section .recommend-box .recommend-left[data-v-4a148f31]{display:flex;align-items:center}.course-aside .sticky-section .recommend-box .benefit-icon[data-v-4a148f31]{width:40px;height:40px}.course-aside .sticky-section .recommend-box .recommend-desc[data-v-4a148f31]{flex-direction:column;margin-left:8px}.course-aside .sticky-section .recommend-box .title[data-v-4a148f31]{font-weight:600;font-size:18px;line-height:30px;color:var(--juejin-font-1)}.course-aside .sticky-section .recommend-box .sub-title[data-v-4a148f31]{font-weight:400;font-size:12px;line-height:18px;color:var(--juejin-font-2)}.course-aside .sticky-section .recommend-box .course-spread-code[data-v-4a148f31]{width:56px;height:56px;border:2px solid var(--juejin-font-white);box-sizing:border-box}.course-aside .sticky-section .vip-entry[data-v-4a148f31]{margin-bottom:16px}.course-aside .sticky-section .vip-img-entry[data-v-4a148f31]{display:block}.course-aside .sticky-section .section[data-v-4a148f31]{width:240px;overflow:hidden;border-radius:2px;background-color:var(--juejin-layer-1)}.course-aside .sticky-section .section.announcement[data-v-4a148f31]{margin-bottom:10px}.course-aside .sticky-section .section .announcement-content[data-v-4a148f31]{padding:21px 24px;display:flex;align-items:center}.course-aside .sticky-section .section .announcement-content img[data-v-4a148f31]{height:28px;width:auto}.course-aside .sticky-section .section .announcement-content span[data-v-4a148f31]{margin-left:10px;font-size:18px;line-height:30px;font-weight:500;color:var(--juejin-font-1)}.course-aside .sticky-section .section .announcement-content[data-v-4a148f31]:hover{background-color:var(--juejin-gray-3)}.course-aside .sticky-section .section .slogan[data-v-4a148f31]{padding:15px 16px;border-bottom:1px solid var(--juejin-gray-1-1)}.course-aside .sticky-section .section .slogan .title[data-v-4a148f31]{font-size:15px;color:var(--juejin-font-1)}.course-aside .sticky-section .section .slogan .desc[data-v-4a148f31]{margin-top:8px;line-height:1.4;font-size:14px;color:var(--juejin-font-2)}.course-aside .sticky-section .section .wechat-qr[data-v-4a148f31]{padding:12px 16px}.course-aside .sticky-section .section .wechat-qr .title[data-v-4a148f31]{font-size:15px;color:var(--juejin-font-1)}.course-aside .sticky-section .section .wechat-qr .qr-img[data-v-4a148f31]{margin-top:9px;height:95px;background:url(//lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/wechat-qr.f1926e7.png) no-repeat center 0;background-size:contain;border-radius:2px}.course-aside .sticky-section .bubble[data-v-4a148f31]{width:280px;height:182px;border-radius:4px;background-color:#1f80ff;box-shadow:0 8px 24px 0 rgba(0,0,0,.16);position:absolute;top:59px;font-style:normal;font-weight:400;color:#fff}.course-aside .sticky-section .bubble[data-v-4a148f31]:after{content:"";position:absolute;top:-10px;left:31px;width:0;height:0;border:5px solid transparent;border-bottom-color:#1f80ff}.course-aside .sticky-section .bubble .bubble-new[data-v-4a148f31]{margin-top:24px;margin-left:24px;height:22px;font-size:14px;line-height:22px}.course-aside .sticky-section .bubble .bubble-booklet[data-v-4a148f31]{width:232px;font-weight:500;font-size:18px;line-height:24px;margin-left:24px;margin-top:8px}.course-aside .sticky-section .bubble .close-bubble[data-v-4a148f31]{background-color:#e8f3ff;color:#1f80ff;margin-top:24px;margin-left:24px;width:80px;height:32px;border-radius:50px;font-weight:500;font-size:14px}.course-aside .sticky-section .help[data-v-4a148f31]{margin-top:10px;display:flex;justify-content:center;align-items:center}.course-aside .sticky-section .help .items[data-v-4a148f31]{flex-grow:1;display:flex;height:90px;justify-content:center;align-items:center;flex-direction:column;color:var(--juejin-font-3)}.course-aside .sticky-section .help .items[data-v-4a148f31]:hover{background-color:var(--juejin-gray-3)}.course-aside .sticky-section .help .items[data-v-4a148f31]:first-child{position:relative}.course-aside .sticky-section .help .items[data-v-4a148f31]:first-child:after{content:"";position:absolute;width:0;height:45px;top:50%;right:0;transform:translateY(-50%);border-right:1px solid var(--juejin-gray-1-1)}.course-aside .sticky-section .help .items img[data-v-4a148f31]{width:auto;height:28px}.course-aside .sticky-section .help .items .title[data-v-4a148f31]{margin-top:8px;font-size:14px}.course-aside .sticky-section .book-new-user-ticket-for-book-index[data-v-4a148f31]{margin-top:10px}@keyframes skeleton-keyframes-data-v-0f9eb81c{0%{background-position:0 0}to{background-position:480px 0}}.cates-label-wrap[data-v-0f9eb81c]{height:44px;padding:0 20px;display:flex;align-items:center;overflow-x:auto}.cates-label-wrap[data-v-0f9eb81c]::-webkit-scrollbar{display:none}@media (max-width:600px){.cates-label-wrap[data-v-0f9eb81c]{padding:0 16px;position:relative}.cates-label-wrap[data-v-0f9eb81c]:after{display:inline-block;position:absolute;bottom:0;left:0;right:0;height:1px;content:" ";background:var(--juejin-gray-1-2)}}@media (max-width:600px) and (-webkit-min-device-pixel-ratio:2){.cates-label-wrap[data-v-0f9eb81c]:after{transform:scaleY(.5)}}@media (max-width:600px) and (-webkit-min-device-pixel-ratio:3){.cates-label-wrap[data-v-0f9eb81c]:after{transform:scaleY(.333)}}.cates-label-wrap .label[data-v-0f9eb81c]{flex:0 0 auto;font-size:14px;color:var(--juejin-font-3);margin-right:16px}@media (max-width:600px){.cates-label-wrap .label[data-v-0f9eb81c]{display:none}}.cates-label-wrap .label-content[data-v-0f9eb81c]{flex:1;display:flex;justify-content:space-between;align-items:center}@keyframes skeleton-keyframes-data-v-1fe6b344{0%{background-position:0 0}to{background-position:480px 0}}.tag-item[data-v-1fe6b344]{display:flex;justify-content:center;align-items:center;color:var(--juejin-font-3);font-size:14px;border:1px solid var(--juejin-gray-1-2);padding:4px 6px;border-radius:8px;line-height:20px}.tag-item.active[data-v-1fe6b344],.tag-item[data-v-1fe6b344]:hover{color:var(--juejin-font-2)}.tag-item.active[data-v-1fe6b344]{border:0;padding:5px 7px;background-color:var(--juejin-gray-2);font-weight:500}.tag-item.active[data-v-1fe6b344]:hover{background-color:var(--juejin-gray-1-1)}@media (max-width:600px){.tag-item.active[data-v-1fe6b344]{font-weight:600}.tag-item.active[data-v-1fe6b344],.tag-item.active[data-v-1fe6b344]:hover{color:var(--juejin-font-1)}}@keyframes skeleton-keyframes-data-v-4b6aa530{0%{background-position:0 0}to{background-position:480px 0}}.nav-list[data-v-4b6aa530]{flex:1;display:flex}.nav-list .nav-item[data-v-4b6aa530]{flex:0 0 auto;margin-right:12px}.nav-list .nav-item[data-v-4b6aa530]:last-child{margin-right:0;display:flex}@media (max-width:600px){.nav-list .nav-item[data-v-4b6aa530]:last-child:after{content:"";width:16px}}@keyframes skeleton-keyframes-data-v-a9fad7a8{0%{background-position:0 0}to{background-position:480px 0}}.nav-list[data-v-a9fad7a8]{flex:1;display:flex}.nav-list .nav-item[data-v-a9fad7a8]{position:relative;flex:0 0 auto;margin-right:12px}.nav-list .nav-item[data-v-a9fad7a8]:last-child{margin-right:0}@media (max-width:600px){.nav-list .nav-item[data-v-a9fad7a8] .tag-item{padding:0;line-height:32px;border:none;border-radius:0}.nav-list .nav-item[data-v-a9fad7a8] .tag-item.active{background:none}.nav-list .nav-item[data-v-a9fad7a8] .tag-item.active:after{content:"";position:absolute;left:50%;bottom:-1px;transform:translateX(-50%);z-index:1;width:16px;height:3px;border-radius:3px;background-color:var(--juejin-brand-1-normal)}}.nav-list .icon-vip-free[data-v-a9fad7a8]{position:absolute;z-index:1;top:0;right:-40px;width:44px;height:16px}@media (max-width:600px){.nav-list .icon-vip-free[data-v-a9fad7a8]{right:-46px}}.icon-search-wrap[data-v-a9fad7a8]{width:24px;height:24px}.icon-search-wrap[data-v-a9fad7a8]:hover{cursor:pointer}.icon-search-wrap .icon-search[data-v-a9fad7a8]{width:100%;height:100%}.icon-search-wrap .icon-search path[data-v-a9fad7a8]{fill:var(--juejin-font-3)}@keyframes skeleton-keyframes-data-v-7ed67c0f{0%{background-position:0 0}to{background-position:480px 0}}@media (max-width:600px){.book-item[data-v-7ed67c0f]{position:relative}.book-item[data-v-7ed67c0f]:after{display:inline-block;position:absolute;bottom:0;left:16px;right:16px;height:1px;content:" ";background:var(--juejin-gray-1-2)}}@media (max-width:600px) and (-webkit-min-device-pixel-ratio:2){.book-item[data-v-7ed67c0f]:after{transform:scaleY(.5)}}@media (max-width:600px) and (-webkit-min-device-pixel-ratio:3){.book-item[data-v-7ed67c0f]:after{transform:scaleY(.333)}}@media (max-width:600px){.book-item[data-v-7ed67c0f]:last-child:after{display:none}}.empty-box[data-v-7ed67c0f]{padding:170px 0;height:auto}@media (max-width:600px){.empty-box[data-v-7ed67c0f]{min-height:calc(100vh - 3.67rem - 56px);box-sizing:border-box;padding:0}}@keyframes skeleton-keyframes-data-v-7c650399{0%{background-position:0 0}to{background-position:480px 0}}.input-content[data-v-7c650399]{width:264px;height:32px;box-sizing:border-box;background:var(--juejin-layer-1);border:1px solid var(--juejin-layer-loading-end);border-radius:4px;display:flex;justify-content:space-between}.input-content[data-v-7c650399]:hover{border:1px solid var(--juejin-brand-1-normal)}.search-input[data-v-7c650399]{flex:1;height:30px;padding-left:12px;border:none;outline:none;border-radius:4px;font-size:14px;background:var(--juejin-layer-1);caret-color:var(--juejin-brand-1-normal);color:var(--juejin-font-1)}.search-input[data-v-7c650399]::-moz-placeholder{color:var(--juejin-font-4)}.search-input[data-v-7c650399]::placeholder{color:var(--juejin-font-4)}.icon-content[data-v-7c650399]{padding:0 12px;margin:5px 0;border-left:1px solid var(--juejin-layer-3-border)}.icon-content svg[data-v-7c650399]{height:20px;width:20px;cursor:pointer}.icon-content .search_blue_icon[data-v-7c650399]{display:none}.delete-content[data-v-7c650399]{width:28px;display:flex;justify-content:center;align-items:center;cursor:pointer}.delete-content img[data-v-7c650399]{height:14px;width:14px;color:var(--juejin-font-3)}.input-content[focus-within][data-v-7c650399]{border:1px solid var(--juejin-brand-1-normal)}.input-content[data-v-7c650399]:focus-within{border:1px solid var(--juejin-brand-1-normal)}.has-words.input-content[focus-within] path[data-v-7c650399]{fill:var(--juejin-brand-1-normal)}.has-words.input-content:focus-within path[data-v-7c650399]{fill:var(--juejin-brand-1-normal)}@keyframes skeleton-keyframes-data-v-16b93ec1{0%{background-position:0 0}to{background-position:480px 0}}.emoji.old[data-v-16b93ec1]{transform:scale(.9)}@media (max-width:600px){.web-only[data-v-16b93ec1]{display:none}}.books-search[data-v-16b93ec1]{width:100%;height:56px;font-size:14px;background:var(--juejin-layer-1);border-bottom:.5px solid var(--juejin-layer-3-border);justify-content:space-between}.books-search .return-content[data-v-16b93ec1],.books-search[data-v-16b93ec1]{display:flex;align-items:center}.books-search .return-content .img-word-content[data-v-16b93ec1]{display:flex;margin-left:16px;cursor:pointer}.books-search .return-content .img-word-content img[data-v-16b93ec1]{width:20px;height:20px}.books-search .return-content .img-word-content .title[data-v-16b93ec1]{font-size:14px;margin-left:4px;color:var(--juejin-font-2)}.books-search .return-content .pc-content[data-v-16b93ec1]{font-size:14px;line-height:22px;display:flex}.books-search .return-content .pc-content .line[data-v-16b93ec1]{margin:0 16px;color:var(--juejin-layer-3-border)}.books-search .return-content .pc-content .title[data-v-16b93ec1]{font-weight:500;color:var(--juejin-font-1)}@media (max-width:600px){.books-search .return-content .pc-content[data-v-16b93ec1]{display:none}}.books-search .search-content[data-v-16b93ec1]{margin-right:24px}@media (max-width:600px){.books-search .search-content[data-v-16b93ec1]{margin-right:16px}}@keyframes skeleton-keyframes-data-v-12713d1b{0%{background-position:0 0}to{background-position:480px 0}}.checkbox-wrap[data-v-12713d1b]{line-height:0}.checkbox-wrap .checkbox[data-v-12713d1b] .byte-checkbox__checkbox-inner{width:100%;height:100%;transition:all .3s linear;border-radius:2px}.checkbox-wrap .checkbox[data-v-12713d1b] .byte-checkbox__checkbox-inner .byte-checkbox__checkbox{width:100%;height:100%;border:2px solid var(--juejin-gray-1-1);border-radius:2px;overflow:hidden;box-sizing:border-box;background-color:var(--juejin-layer-1)}.checkbox-wrap .checkbox[data-v-12713d1b] .byte-checkbox__checkbox-inner .byte-checkbox__checkbox:hover{border-color:var(--juejin-brand-1-normal)}@media (max-width:600px){.checkbox-wrap .checkbox[data-v-12713d1b] .byte-checkbox__checkbox-inner .byte-checkbox__checkbox:hover{border-color:var(--juejin-font-4)}}.checkbox-wrap .checkbox[data-v-12713d1b] input[type=checkbox]:checked+.byte-checkbox__checkbox{background-color:var(--juejin-brand-1-normal);border:none}.checkbox-wrap .checkbox[data-v-12713d1b] input[type=checkbox]:checked+.byte-checkbox__checkbox:after{height:40%;left:33%;top:20%;width:20%}.checkbox-wrap .checkbox-radio[data-v-12713d1b]{margin:1px}.checkbox-wrap .checkbox-radio[data-v-12713d1b] .byte-checkbox__checkbox-inner{overflow:hidden;border-radius:50%}.checkbox-wrap .checkbox-radio[data-v-12713d1b] .byte-checkbox__checkbox-inner .byte-checkbox__checkbox{border-radius:50%;border:1.5px solid var(--juejin-font-4)}.checkbox-wrap[data-v-12713d1b] .byte-checkbox__wrapper--disabled .byte-checkbox__checkbox-inner input[type=checkbox]+span{cursor:default}.checkbox-wrap[data-v-12713d1b] .byte-checkbox__wrapper--disabled .byte-checkbox__checkbox-inner input[type=checkbox]+span:hover{cursor:pointer}.checkbox-wrap[data-v-12713d1b] .byte-checkbox__wrapper--disabled .byte-checkbox__checkbox-inner input[type=checkbox]:checked+.byte-checkbox__checkbox:after{cursor:default;border-color:var(--juejin-font-white)}@keyframes skeleton-keyframes-data-v-a841f73a{0%{background-position:0 0}to{background-position:480px 0}}.books-filter-header[data-v-a841f73a]{background:var(--juejin-layer-1)}.books-filter-header .filter-content[data-v-a841f73a]{width:100%;padding:0 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.triangle-content[data-v-a841f73a]{margin-left:5px}.books-filter-header .filter-left .triangle-content div[data-v-a841f73a]{width:0;height:0;border:3px solid transparent}.books-filter-header .filter-left .triangle-content .top-triangle[data-v-a841f73a]{border-top:3px solid #c4c4c4;margin-top:2px}.books-filter-header .filter-left .triangle-content .bottom-triangle[data-v-a841f73a]{border-bottom:3px solid #c4c4c4}.books-filter-header .filter-left .triangle-content .top-active[data-v-a841f73a]{border-top:3px solid var(--juejin-brand-1-normal)}.books-filter-header .filter-left .triangle-content .bottom-active[data-v-a841f73a]{border-bottom:3px solid var(--juejin-brand-1-normal)}@keyframes skeleton-keyframes-data-v-f836b7b8{0%{background-position:0 0}to{background-position:480px 0}}.empty-box[data-v-f836b7b8]{padding:170px 0;height:auto}@media (max-width:600px){.empty-box[data-v-f836b7b8]{padding:80px 0}}.video-item[data-v-f836b7b8]:last-child:after{display:none}@media (min-width:600px){.video-item[data-v-f836b7b8] .title-box{font-weight:400!important}}@keyframes skeleton-keyframes-data-v-7bb7d93a{0%{background-position:0 0}to{background-position:480px 0}}.courses-home-view[data-v-7bb7d93a]{width:100%;margin-left:auto;margin-right:auto;position:relative}.courses-home-view .course-copy-right[data-v-7bb7d93a]{max-width:700px}@media (max-width:960px){.courses-home-view .course-copy-right[data-v-7bb7d93a]{max-width:unset}}.courses-home-view[data-v-7bb7d93a] .course-aside{transition:all .3s linear}@media (max-width:600px){.courses-home-view .course-layout[data-v-7bb7d93a]{margin-top:calc(3.67rem + 96px)}}.courses-home-view .view-search-mode[data-v-7bb7d93a]{transition:margin-top .3s}@media (max-width:600px){.courses-home-view .view-search-mode[data-v-7bb7d93a]{margin-top:3.67rem}}.courses-home-view .course-header[data-v-7bb7d93a]{padding:12px 0 8px;background:var(--juejin-layer-1);position:relative}.courses-home-view .course-header[data-v-7bb7d93a]:after{display:inline-block;position:absolute;bottom:0;left:20px;right:20px;height:1px;content:" ";background:var(--juejin-gray-1-2)}@media (-webkit-min-device-pixel-ratio:2){.courses-home-view .course-header[data-v-7bb7d93a]:after{transform:scaleY(.5)}}@media (-webkit-min-device-pixel-ratio:3){.courses-home-view .course-header[data-v-7bb7d93a]:after{transform:scaleY(.333)}}@media (max-width:600px){.courses-home-view .course-header[data-v-7bb7d93a]{padding:0}.courses-home-view .course-header[data-v-7bb7d93a]:after{display:none}}.courses-home-view .course-content-wrap[data-v-7bb7d93a]{position:relative;min-height:calc(100vh - 210px);margin-bottom:50px;padding-bottom:env(safe-area-inset-bottom)}@media (max-width:600px){.courses-home-view .course-content-wrap[data-v-7bb7d93a]{margin-bottom:0;min-height:unset}}.courses-home-view .course-content-wrap.loading[data-v-7bb7d93a]{min-height:430px}.courses-home-view .course-content-wrap .course-content[data-v-7bb7d93a]{width:100%;max-width:700px;background-color:var(--juejin-layer-1);min-height:742.6px}@media (max-width:600px){.courses-home-view .course-content-wrap .course-content[data-v-7bb7d93a]{min-height:calc(100vh - 3.67rem - 96px)}}.courses-home-view .course-content-wrap .course-content .video-view[data-v-7bb7d93a] .video-item:last-child{padding-bottom:26px}@media (max-width:600px){.courses-home-view .books-view[data-v-7bb7d93a]{margin-top:8px}}.courses-home-view .copy-right[data-v-7bb7d93a]{text-align:center;font-size:14px;opacity:.7;color:var(--juejin-font-3);margin-bottom:40px}.courses-home-view .copy-right a[data-v-7bb7d93a]{color:inherit}@media (max-width:960px){.courses-home-view[data-v-7bb7d93a] .course-aside{z-index:-1;opacity:0;visibility:hidden}.courses-home-view .course-content-wrap .course-content[data-v-7bb7d93a]{max-width:unset}}@media (max-width:700px){.courses-home-view .copy-right[data-v-7bb7d93a]{display:none}}