.version-textbook-container[data-v-134fe2f3]{border-radius:6px;left:13px;position:absolute;top:3px;width:210px;z-index:4}.version-textbook-wrapper[data-v-134fe2f3]{cursor:pointer;display:flex;justify-content:space-between;padding:4px 2px}.version-textbook-wrapper:hover .xkw-down[data-v-134fe2f3]{color:#0057ff;transform:rotate(180deg)}.version-textbook[data-v-134fe2f3]{align-items:center;display:flex;display:-webkit-box;font-weight:700;gap:8px;line-height:22px;overflow:hidden;text-overflow:ellipsis;width:90%;-webkit-line-clamp:2;-webkit-box-orient:vertical}.version-textbook .textbook[data-v-134fe2f3]{color:#0069ff;margin-right:8px}.version[data-v-134fe2f3]{color:#1a1a1a}.hover-area[data-v-134fe2f3]{position:fixed;z-index:999}.dropdown-menu[data-v-134fe2f3]{background:#fff;border-radius:6px;box-shadow:0 2px 4px rgba(0,0,0,.02),0 4px 9px rgba(0,0,0,.03),0 6px 20px rgba(0,0,0,.05);left:0;padding:20px 0 20px 20px;position:fixed;top:0;width:626px;z-index:10000}.dropdown-menu .version-group[data-v-134fe2f3],.dropdown-menu .volume-group[data-v-134fe2f3]{margin-bottom:24px}.dropdown-menu .version-group[data-v-134fe2f3]:last-child,.dropdown-menu .volume-group[data-v-134fe2f3]:last-child{margin-bottom:0}.dropdown-menu .group-title[data-v-134fe2f3]{color:var(-----xkw-font-sectitle-color,#7e7e7e);flex-shrink:0;font-family:PingFang SC;font-size:14px;font-style:normal;font-weight:400;line-height:24px;margin-bottom:16px;width:60px}.dropdown-menu .version-options[data-v-134fe2f3],.dropdown-menu .volume-options[data-v-134fe2f3]{display:flex;flex-wrap:wrap;gap:10px}.dropdown-menu .version-group[data-v-134fe2f3]{max-height:318px;overflow-x:hidden;overflow-y:auto}.dropdown-menu .version-group[data-v-134fe2f3]::-webkit-scrollbar-track{background:var(-----xkw-avatar-color,#bababa)}.dropdown-menu .version-group[data-v-134fe2f3]::-webkit-scrollbar{height:8px;padding:20px;width:8px}.dropdown-menu .version-group[data-v-134fe2f3]::-webkit-scrollbar-track{background:#fff;border-radius:4px}.dropdown-menu .version-group[data-v-134fe2f3]::-webkit-scrollbar-thumb{background:#bababa;border-radius:4px;-webkit-transition:background-color .2s ease;transition:background-color .2s ease}.dropdown-menu .version-group[data-v-134fe2f3]::-webkit-scrollbar-thumb:hover{background:hsla(220,9%,46%,.8)}.dropdown-menu .version-options a[data-v-134fe2f3]{position:relative}.dropdown-menu .version-name-arrow[data-v-134fe2f3]{bottom:30px;position:absolute;right:-3px;width:33px}.dropdown-menu .version-item[data-v-134fe2f3],.dropdown-menu .volume-item[data-v-134fe2f3]{background:#f6f7fb;border-radius:6px;color:#1a1a1a;display:inline-block;font-size:14px;font-style:normal;line-height:14px;padding:8px 10px;text-decoration:none;white-space:nowrap}.dropdown-menu .version-item[data-v-134fe2f3]:hover,.dropdown-menu .volume-item[data-v-134fe2f3]:hover{background:#e6f2ff;border-radius:6px;color:#0069ff;font-size:14px;font-style:normal;line-height:14px}.dropdown-menu .version-item.active[data-v-134fe2f3],.dropdown-menu .volume-item.active[data-v-134fe2f3]{background:#e6f2ff;border-radius:6px;color:#0069ff;font-size:14px;font-style:normal;font-weight:700;line-height:14px}.dropdown-menu .version-group[data-v-134fe2f3]{position:relative}.dropdown-menu .version-options[data-v-134fe2f3]{display:flex;flex-wrap:wrap;gap:10px;max-height:none;overflow:visible;transition:max-height .3s}.dropdown-menu .version-options.collapsed[data-v-134fe2f3]{max-height:108px;overflow:hidden;padding-top:10px}.dropdown-menu .expand-btn[data-v-134fe2f3]{color:#0069ff;cursor:pointer;font-size:14px;margin-top:5px;-webkit-user-select:none;-moz-user-select:none;user-select:none}.dropdown-menu .expand-btn i.arrow-down[data-v-134fe2f3]{transform:rotate(45deg)}.dropdown-menu .expand-btn i.arrow-down[data-v-134fe2f3],.dropdown-menu .expand-btn i.arrow-up[data-v-134fe2f3]{border:solid #0069ff;border-width:0 2px 2px 0;display:inline-block;margin-left:2px;padding:3px}.dropdown-menu .expand-btn i.arrow-up[data-v-134fe2f3]{transform:rotate(-135deg)}.xkw-down[data-v-134fe2f3]{color:#aaabad;font-size:16px;height:-moz-fit-content;height:fit-content;transition:transform .3s ease}.xkw-down.rotate[data-v-134fe2f3]{color:#0057ff;transform:rotate(180deg)}.divider[data-v-134fe2f3]{background:#e2e2e2;height:1px;margin:12px 0 8px}.tree-list[data-v-457ba46f]{padding-left:12px;position:relative}.tree-list .tree .book-node[data-v-457ba46f]{font-weight:700}.tree-list .tree.hide .tree-node .btn[data-v-457ba46f]:after{content:""}.tree-list .select-textbook[data-v-457ba46f]{margin-bottom:24px}.tree-list[data-v-457ba46f]:before{border-left:1px dotted #dedede;bottom:16px;content:"";left:16px;position:absolute;top:24px;width:1px}.tree-list ul[data-v-457ba46f]:before{top:-7px}.tree-list .leaf-node[data-v-457ba46f],.tree-list .tree-node[data-v-457ba46f]{color:#333;cursor:pointer;display:block;font-size:14px;padding:7px 0 7px 6px;position:relative}.tree-list .leaf-node .btn[data-v-457ba46f],.tree-list .tree-node .btn[data-v-457ba46f]{background:url(data:image/png;base64,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) no-repeat 50%;background-size:cover;cursor:pointer;display:block;height:15px;left:-3px;position:absolute;top:10px;width:15px}.tree-list .leaf-node .show[data-v-457ba46f],.tree-list .tree-node .show[data-v-457ba46f]{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAABYlAAAWJQFJUiTwAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAADYSURBVHgB7ZcxDoQgEEW/my0sPYqtnXZ6HE9gPIHHsZSSkqNQ0u3ukJAoUGiCwU3mNSajmfmMA/kUnx/IyAuZYQHvWHDbNkgpYYxBCsqyRF3XGIYheFf4Q7iuqy1+B23bouu6QyzogFLKPsdxRFVVSIHWGsuy2IX5AoIZcG1PVXyfK/ZLeRewABbwzKM4xjRNuMI8z6e++58OnF3RVXgIWQALeJ4AMpAE2ahUuFwu957AlJIjFkLgDpqmQd/3h1hwEpJpJO9G5jSlLafi5Ip9Cr4bIjPZBXwBf95Ly6t6XyoAAAAASUVORK5CYII=) no-repeat 50%;background-size:cover}.tree-list .leaf-node .title[data-v-457ba46f],.tree-list .tree-node .title[data-v-457ba46f]{font-weight:700}.tree-list .leaf-node .tree-name[data-v-457ba46f],.tree-list .tree-node .tree-name[data-v-457ba46f]{display:block;line-height:22px;padding:0 10px}.tree-list .leaf-node .tree-name[data-v-457ba46f]:hover,.tree-list .tree-node .tree-name[data-v-457ba46f]:hover{color:#0080ff}.tree-list .leaf-node .tree-name .tree-name-span[data-v-457ba46f],.tree-list .tree-node .tree-name .tree-name-span[data-v-457ba46f]{display:inline-block;position:relative}.tree-list .leaf-node .tree-name .tree-name-span img[data-v-457ba46f],.tree-list .tree-node .tree-name .tree-name-span img[data-v-457ba46f]{position:absolute;right:-9px;top:-8px;transform:translateY(-10%);width:33px}.tree-list .leaf-node .tree-name.show-after .tree-name-span span[data-v-457ba46f]:after,.tree-list .tree-node .tree-name.show-after .tree-name-span span[data-v-457ba46f]:after{background:url(https://zxxkstatic.zxxk.com/common/images/newtextbook/newtextbook.png) no-repeat;background-size:contain;content:"";height:20px;left:calc(var(--item-width) - 20px);position:absolute;top:-9px;width:33px;z-index:2}.tree-list .leaf-node.on .tree-name[data-v-457ba46f],.tree-list .tree-node.on .tree-name[data-v-457ba46f]{color:#0080ff}.tree-list .leaf-node[data-v-457ba46f]{position:relative}.tree-list .leaf-node[data-v-457ba46f]:before{border-bottom:1px dotted #dedede;content:"";height:1px;left:8px;position:absolute;top:17px;width:6px}.tree-list[data-v-84aeebd0]{padding-left:12px;position:relative}.tree-list .tree .book-node[data-v-84aeebd0]{font-weight:700}.tree-list .tree.hide .tree-node .btn[data-v-84aeebd0]:after{content:""}.tree-list[data-v-84aeebd0]:before{border-left:1px dotted #dedede;bottom:16px;content:"";left:16px;position:absolute;top:24px;width:1px}.tree-list ul[data-v-84aeebd0]:before{top:-7px}.tree-list .leaf-node[data-v-84aeebd0],.tree-list .tree-node[data-v-84aeebd0]{color:#333;cursor:pointer;display:block;font-size:14px;padding:7px 0 7px 6px;position:relative}.tree-list .leaf-node .btn[data-v-84aeebd0],.tree-list .tree-node .btn[data-v-84aeebd0]{background:url(data:image/png;base64,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) no-repeat 50%;background-size:cover;cursor:pointer;display:block;height:15px;left:-3px;position:absolute;top:10px;width:15px}.tree-list .leaf-node .show[data-v-84aeebd0],.tree-list .tree-node .show[data-v-84aeebd0]{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAABYlAAAWJQFJUiTwAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAADYSURBVHgB7ZcxDoQgEEW/my0sPYqtnXZ6HE9gPIHHsZSSkqNQ0u3ukJAoUGiCwU3mNSajmfmMA/kUnx/IyAuZYQHvWHDbNkgpYYxBCsqyRF3XGIYheFf4Q7iuqy1+B23bouu6QyzogFLKPsdxRFVVSIHWGsuy2IX5AoIZcG1PVXyfK/ZLeRewABbwzKM4xjRNuMI8z6e++58OnF3RVXgIWQALeJ4AMpAE2ahUuFwu957AlJIjFkLgDpqmQd/3h1hwEpJpJO9G5jSlLafi5Ip9Cr4bIjPZBXwBf95Ly6t6XyoAAAAASUVORK5CYII=) no-repeat 50%;background-size:cover}.tree-list .leaf-node .title[data-v-84aeebd0],.tree-list .tree-node .title[data-v-84aeebd0]{font-weight:700}.tree-list .leaf-node .tree-name[data-v-84aeebd0],.tree-list .tree-node .tree-name[data-v-84aeebd0]{display:block;line-height:22px;padding:0 10px}.tree-list .leaf-node .tree-name.active[data-v-84aeebd0],.tree-list .leaf-node .tree-name[data-v-84aeebd0]:hover,.tree-list .tree-node .tree-name.active[data-v-84aeebd0],.tree-list .tree-node .tree-name[data-v-84aeebd0]:hover{color:#0080ff}.tree-list .leaf-node .tree-name .tree-name-span[data-v-84aeebd0],.tree-list .tree-node .tree-name .tree-name-span[data-v-84aeebd0]{display:inline-block;position:relative}.tree-list .leaf-node .tree-name .tree-name-span img[data-v-84aeebd0],.tree-list .tree-node .tree-name .tree-name-span img[data-v-84aeebd0]{position:absolute;right:-9px;top:-8px;transform:translateY(-10%);width:33px}.tree-list .leaf-node.on .tree-name[data-v-84aeebd0],.tree-list .tree-node.on .tree-name[data-v-84aeebd0]{color:#0080ff}.tree-list .leaf-node[data-v-84aeebd0]{position:relative}.tree-list .leaf-node[data-v-84aeebd0]:before{border-bottom:1px dotted #dedede;content:"";height:1px;left:8px;position:absolute;top:17px;width:6px}.version-textbook[data-v-90c3fec8]{display:flex;flex-wrap:wrap}.version-textbook .textbook[data-v-90c3fec8],.version-textbook .version[data-v-90c3fec8]{background-color:#e7f3ff;border-radius:4px;color:#0080ff;cursor:pointer;display:flex;height:30px;line-height:30px;margin-left:12px;margin-top:8px;padding:0 8px}.version-textbook .textbook .name[data-v-90c3fec8],.version-textbook .version .name[data-v-90c3fec8]{max-width:165px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.version-textbook .textbook .close[data-v-90c3fec8],.version-textbook .version .close[data-v-90c3fec8]{margin-left:8px}