.tree-list[data-v-f1ff98cc]{position:relative;padding-left:20px}.tree-list .leaf-node[data-v-f1ff98cc],.tree-list .tree-node[data-v-f1ff98cc]{position:relative;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;padding-left:14px;width:100%;font-size:14px;color:#333;cursor:pointer}.tree-list .leaf-node .btn-box[data-v-f1ff98cc],.tree-list .tree-node .btn-box[data-v-f1ff98cc]{position:absolute;left:0;top:10px;background:#fff;padding:2px 0;z-index:10}.tree-list .leaf-node .btn[data-v-f1ff98cc],.tree-list .tree-node .btn[data-v-f1ff98cc]{position:relative;display:block;width:12px;height:12px;cursor:pointer;border:1px solid #7e7e7e;border-radius:1px;background:#fff}.tree-list .leaf-node .btn[data-v-f1ff98cc]:before,.tree-list .tree-node .btn[data-v-f1ff98cc]:before{position:absolute;left:2px;right:2px;bottom:0;height:1px;top:0;content:"";margin:auto 0;background:#7e7e7e}.tree-list .leaf-node .btn[data-v-f1ff98cc]:after,.tree-list .tree-node .btn[data-v-f1ff98cc]:after{position:absolute;left:0;right:0;margin:auto;width:1px;bottom:2px;top:2px;background:#7e7e7e}.tree-list .leaf-node .tree-name[data-v-f1ff98cc],.tree-list .tree-node .tree-name[data-v-f1ff98cc]{padding:7px 0 7px 6px;display:block;line-height:22px;-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;color:#1a1a1a}.tree-list .leaf-node.on .tree-name[data-v-f1ff98cc],.tree-list .leaf-node:hover .tree-name[data-v-f1ff98cc],.tree-list .tree-node.on .tree-name[data-v-f1ff98cc],.tree-list .tree-node:hover .tree-name[data-v-f1ff98cc]{color:#0057ff}.tree-list .leaf-node.new-textbook-tip .tree-name span[data-v-f1ff98cc],.tree-list .tree-node.new-textbook-tip .tree-name span[data-v-f1ff98cc]{position:relative;display:inline-block}.tree-list .leaf-node.new-textbook-tip .tree-name span[data-v-f1ff98cc]:before,.tree-list .tree-node.new-textbook-tip .tree-name span[data-v-f1ff98cc]:before{content:"";position:absolute;top:-12px;left:80%;width:38px;height:13px;z-index:1;background:url(../img/new-textbook-logo.1897954e.svg) no-repeat 50%;background-size:100% 100%}.tree-list .leaf-node[data-v-f1ff98cc]{position:relative}.tree-list .leaf-node[data-v-f1ff98cc]:before{position:absolute;top:17px;left:7px;width:8px;height:1px;content:"";border-bottom:1px solid #e2e2e2}.tree-list .tree[data-v-f1ff98cc]{position:relative}.tree-list .tree .book-node[data-v-f1ff98cc]{font-weight:700}.tree-list .tree .book-node .btn[data-v-f1ff98cc]{border-radius:2px}.tree-list .tree.hide .tree-node .btn[data-v-f1ff98cc]:after{content:""}.tree-list .tree[data-v-f1ff98cc]:after{content:"";display:block;width:1px;bottom:0;border-left:1px solid #e2e2e2;position:absolute;left:6px;top:0}.tree-list .tree:last-child>.leaf-node[data-v-f1ff98cc],.tree-list .tree:last-child>.tree-node[data-v-f1ff98cc]{padding-top:0;padding-bottom:0}.tree-list .tree:last-child.has-child-tree[data-v-f1ff98cc]{padding-bottom:0}.tree-list .tree[data-v-f1ff98cc]:last-child:after{height:19px}.tree-list ul[data-v-f1ff98cc]:before{top:-7px}.catalog-list>.tree-list>.tree[data-v-f1ff98cc]:first-child:after,.catalog>.tree-list>.tree[data-v-f1ff98cc]:first-child:after,.tree-catalog>.tree-list>.tree[data-v-f1ff98cc]:first-child:after{top:18px}.catalog-list>.tree-list>.tree:first-child.has-child-tree.is-only-one-catalog[data-v-f1ff98cc]:after,.catalog>.tree-list>.tree:first-child.has-child-tree.is-only-one-catalog[data-v-f1ff98cc]:after,.tree-catalog>.tree-list>.tree:first-child.has-child-tree.is-only-one-catalog[data-v-f1ff98cc]:after{height:calc(100% - 36px)}.catalog-list>.tree-list>.tree[data-v-f1ff98cc]:first-child:after{top:18px}.catalog>.content-tree-list[data-v-f1ff98cc]{padding-left:0}.catalog>.content-tree-list>.tree[data-v-f1ff98cc]:after{display:none}.catalog>.content-tree-list>.tree .leaf-node[data-v-f1ff98cc],.catalog>.content-tree-list>.tree .tree-node[data-v-f1ff98cc]{padding-bottom:0;padding:4px 0 4px 4px}.catalog>.content-tree-list>.tree .leaf-node .tree-name[data-v-f1ff98cc],.catalog>.content-tree-list>.tree .tree-node .tree-name[data-v-f1ff98cc]{padding-top:0}.catalog>.content-tree-list>.tree .leaf-node .tree-name span[data-v-f1ff98cc],.catalog>.content-tree-list>.tree .tree-node .tree-name span[data-v-f1ff98cc]{position:relative;padding:3px 8px;line-height:22px;width:100%;height:100%;border-radius:4px;font-size:14px;display:block}.catalog>.content-tree-list>.tree .leaf-node[data-v-f1ff98cc]:before,.catalog>.content-tree-list>.tree .tree-node[data-v-f1ff98cc]:before{left:14px}.catalog>.content-tree-list>.tree .leaf-node .btn[data-v-f1ff98cc],.catalog>.content-tree-list>.tree .tree-node .btn[data-v-f1ff98cc]{top:50%;margin-top:-7px;left:8px}.catalog>.content-tree-list>.tree .leaf-node.on .tree-name span[data-v-f1ff98cc],.catalog>.content-tree-list>.tree .tree-node.on .tree-name span[data-v-f1ff98cc]{background:#e6f2ff}.catalog>.content-tree-list>.tree.no-child-tree .leaf-node[data-v-f1ff98cc]:before{display:none}.catalog>.content-tree-list .tree[data-v-f1ff98cc]:after{left:14px}.current-title[data-v-7c21d03c]{position:relative;margin:0 auto;background:#fff;border-bottom:none;text-align:center;padding-bottom:8px;border-bottom:1px solid #e2e2e2;margin-bottom:8px;cursor:pointer}.current-title .show-name[data-v-7c21d03c]{line-height:22px;text-align:left;font-size:14px;font-weight:700;padding-right:52px}.current-title .show-name .volume[data-v-7c21d03c]{color:#0057ff;vertical-align:top}.current-title .show-name .version[data-v-7c21d03c]{padding-left:8px;vertical-align:top;color:#1a1a1a}.current-title .check-btn[data-v-7c21d03c]{position:absolute;right:0;top:0;line-height:22px;font-size:12px;color:#666;cursor:pointer}.current-title .check-btn[data-v-7c21d03c]:hover{color:#0057ff}.current-title .panel[data-v-7c21d03c]{min-width:646px;width:-webkit-fit-content;width:-moz-fit-content;width:fit-content;position:absolute;left:-16px;top:100%;z-index:100;background:#fff;border-radius:8px;box-shadow:0 2px 4px 0 rgba(0,0,0,.02),0 4px 9px 0 rgba(0,0,0,.03),0 6px 20px 0 rgba(0,0,0,.05);border:1px solid #f6f6f6;padding:20px 12px 20px 20px}.current-title .label[data-v-7c21d03c]{display:block;line-height:14px;color:#666;font-size:14px;text-align:left}.current-title .textbook-list[data-v-7c21d03c],.current-title .version-list[data-v-7c21d03c]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-wrap:wrap;-ms-flex-wrap:wrap;flex-wrap:wrap;position:relative;-webkit-transition:max-height .3s ease-in-out;transition:max-height .3s ease-in-out;padding-right:20px}.current-title .textbook-list.textbook-list[data-v-7c21d03c],.current-title .version-list.textbook-list[data-v-7c21d03c]{padding-top:16px}.current-title .textbook-list .item[data-v-7c21d03c],.current-title .version-list .item[data-v-7c21d03c]{height:30px;line-height:30px;margin-bottom:12px;margin-right:12px;padding:0 12px;background:#f6f7fb;font-size:14px;color:#333;border-radius:4px;text-align:center;cursor:pointer}.current-title .textbook-list .item.active[data-v-7c21d03c],.current-title .textbook-list .item[data-v-7c21d03c]:hover,.current-title .version-list .item.active[data-v-7c21d03c],.current-title .version-list .item[data-v-7c21d03c]:hover{background:#e6f2ff;color:#0057ff}.current-title .textbook-list .item.active[data-v-7c21d03c],.current-title .version-list .item.active[data-v-7c21d03c]{font-weight:700}.current-title .textbook-list .item.new-textbook-tip[data-v-7c21d03c],.current-title .version-list .item.new-textbook-tip[data-v-7c21d03c]{position:relative}.current-title .textbook-list .item.new-textbook-tip[data-v-7c21d03c]:before,.current-title .version-list .item.new-textbook-tip[data-v-7c21d03c]:before{content:"";position:absolute;top:-10px;right:-4px;width:38px;height:13px;z-index:1;background:url(../img/new-textbook-logo.1897954e.svg) no-repeat 50%;background-size:100% 100%}.current-title .textbook-list-panel[data-v-7c21d03c]{margin-top:20px}.current-title .version-list-wrapper[data-v-7c21d03c]{position:relative;padding-top:16px}.current-title .version-list-wrapper.is-expanded[data-v-7c21d03c]{max-height:252px;overflow-y:auto;overflow-x:hidden}.current-title .version-list-wrapper.is-expanded[data-v-7c21d03c]::-webkit-scrollbar{width:6px}.current-title .version-list-wrapper.is-expanded[data-v-7c21d03c]::-webkit-scrollbar-thumb{background:rgba(0,0,0,.4);border-radius:4px}.current-title .version-list-wrapper.is-expanded[data-v-7c21d03c]::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.current-title .toggle-btn[data-v-7c21d03c]{position:absolute;border-radius:6px;bottom:12px;height:26px;right:0;line-height:26px;z-index:10;color:#0057ff;cursor:pointer;-webkit-transition:opacity .3s;transition:opacity .3s;font-size:14px;background:#fff}.current-title .toggle-btn.toggle-btn-expanded .iconfont[data-v-7c21d03c]{-webkit-transform:rotate(180deg);-ms-transform:rotate(180deg);transform:rotate(180deg)}.current-title .toggle-btn .iconfont[data-v-7c21d03c]{display:inline-block;font-size:12px;line-height:24px;-webkit-transition:-webkit-transform .3s ease-in-out;transition:-webkit-transform .3s ease-in-out;transition:transform .3s ease-in-out;transition:transform .3s ease-in-out,-webkit-transform .3s ease-in-out;color:#0057ff}.current-title .toggle-btn[data-v-7c21d03c]:hover{color:#4494ff}.vocab-item[data-v-7a404bb0]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;padding:24px 0;border-bottom:1px solid #e2e2e2}.vocab-item .vocab-info[data-v-7a404bb0]{width:calc(100% - 208px);margin-right:32px}.vocab-item .vocab-info .word-symbol[data-v-7a404bb0]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}.vocab-item .vocab-info .word-symbol .word[data-v-7a404bb0]{font-size:18px;margin-right:24px;cursor:pointer}.vocab-item .vocab-info .word-symbol .symbol[data-v-7a404bb0]{height:32px;line-height:32px;padding:0 16px;border-radius:20px;background:#f6f6f6;position:relative;margin-right:20px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;cursor:pointer}.vocab-item .vocab-info .word-symbol .symbol span[data-v-7a404bb0]{color:rgba(0,0,0,.6);font-size:14px;margin-right:4px}.vocab-item .vocab-info .word-symbol .symbol img[data-v-7a404bb0]{width:16px;height:16px}.vocab-item .vocab-info .word-symbol .symbol i[data-v-7a404bb0]{font-size:16px;color:rgba(0,0,0,.6)}.vocab-item .vocab-info .word-symbol .symbol audio[data-v-7a404bb0]{left:0;right:0;top:0;bottom:0;opacity:0;position:absolute;visibility:hidden}.vocab-item .vocab-info .word-symbol .symbol.on[data-v-7a404bb0],.vocab-item .vocab-info .word-symbol .symbol[data-v-7a404bb0]:hover{background:#e6f2ff}.vocab-item .vocab-info .definition[data-v-7a404bb0]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;color:rgba(0,0,0,.6);font-size:14px;margin-top:20px;padding-left:28px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vocab-item .vocab-info .definition .def-list[data-v-7a404bb0]{width:calc(100% - 42px);-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.vocab-item .vocab-info .definition .def-list .def-item[data-v-7a404bb0]{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:12px}.vocab-item .vocab-info .definition .def-list .def-item[data-v-7a404bb0]:last-child{margin-right:0;margin-bottom:0}.vocab-item .vocab-info .word-changes[data-v-7a404bb0]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.vocab-item .vocab-info .word-changes .change-list[data-v-7a404bb0]{width:calc(100% - 70px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vocab-item .vocab-info .word-changes .change-list .change-item[data-v-7a404bb0]{display:inline-block;margin-right:24px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;float:left}.vocab-item .vocab-info .word-changes .change-list .change-item span[data-v-7a404bb0]:nth-child(2){color:#0057ff;text-decoration:underline;margin-left:4px;cursor:pointer}.vocab-item .vocab-info .word-changes .change-list .change-item[data-v-7a404bb0]:last-child{margin-right:0}.vocab-item .vocab-info .word-changes[data-v-7a404bb0]{margin-top:10px;color:rgba(0,0,0,.6);font-size:14px}.vocab-item[data-v-7a404bb0]:first-child{padding-top:0}.vocab-item .opera-btn .copy-btn[data-v-7a404bb0],.vocab-item .opera-btn[data-v-7a404bb0]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}.vocab-item .opera-btn .copy-btn[data-v-7a404bb0]{margin-right:40px;font-size:14px;color:#0057ff;cursor:pointer}.vocab-item .opera-btn .copy-btn i[data-v-7a404bb0]{font-size:16px;margin-right:4px}.vocab-item .opera-btn .preview-btn[data-v-7a404bb0]{border-radius:6px;cursor:pointer;width:88px;text-align:center;height:32px;line-height:30px;padding:0 16px;border:1px solid #0057ff;font-size:14px;color:#0057ff}.no-content-box[data-v-7a19a10a]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;padding-top:150px}.no-content-box .no-content[data-v-7a19a10a]{width:264px;height:180px}.no-content-box .no-search-content[data-v-7a19a10a]{width:240px;height:196px}.no-content-box .no-message-content[data-v-7a19a10a]{width:266.4px;height:227px}.no-content-box .gray-no-content[data-v-7a19a10a]{width:172px;height:117px}.no-content-box .no-search[data-v-7a19a10a]{width:186px;height:125px}.no-content-box .tip-title[data-v-7a19a10a]{color:#000;font-size:14px;line-height:22px;margin-top:4px}.no-content-box .content-info[data-v-7a19a10a]{margin-top:10px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;font-size:14px;line-height:22px}.no-content-box .content-info .tip-title[data-v-7a19a10a]{margin-right:12px;margin-top:0}.no-content-box .content-info .jump-url[data-v-7a19a10a]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;color:#0057ff}.no-content-box .content-info .jump-url .icon-down-arrow[data-v-7a19a10a]{font-size:12px;-webkit-transform:scale(.8) rotate(-90deg);-ms-transform:scale(.8) rotate(-90deg);transform:scale(.8) rotate(-90deg);margin-left:4px}.no-content-box.gray-no-content-box[data-v-7a19a10a]{margin-top:54px;margin-bottom:49px}.zyk-content .page-body[data-v-337f581d]{background:#eaeff2;border-radius:8px 8px 0 0}.zyk-content .page-body .tab-content[data-v-337f581d]{width:264px;background:#f9fafb;padding:12px 16px;height:calc(100vh - 98px);border-radius:6px 6px 0 0;background:#fff;margin:20px 0 0 20px;float:left;-webkit-transition:all .3s ease-in-out;transition:all .3s ease-in-out}.zyk-content .page-body .tab-content[data-v-337f581d]::-webkit-scrollbar{display:none}.zyk-content .page-body .tab-content .catalog[data-v-337f581d]{max-height:calc(100vh - 174px);overflow:auto}.zyk-content .page-body .tab-content .catalog[data-v-337f581d]::-webkit-scrollbar{display:none}.zyk-content .page-body .tab-content .catalog>.tree-list[data-v-337f581d]{padding-left:0}.zyk-content .page-body .document-content[data-v-337f581d]{float:right;width:calc(100% - 296px);height:calc(100vh - 78px);overflow:scroll;overflow-x:hidden;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-transition:width .3s ease-in-out;transition:width .3s ease-in-out}.zyk-content .page-body .document-content .mbody[data-v-337f581d]{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;margin-top:20px;border-radius:6px 6px 0 0}.zyk-content .page-body .document-content .mbody[data-v-337f581d] .search-input{margin-bottom:20px}.zyk-content .page-body .document-content .mbody .document-container .resources[data-v-337f581d],.zyk-content .page-body .document-content .mbody .document-container[data-v-337f581d]{position:relative}