.library-return{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;padding:7px 10px;flex-shrink:0;font:500 12px/1.5 "PingFang SC","Microsoft YaHei",sans-serif;color:#53685d;background:#f4f6f0;border:1px solid #dce3d8;border-radius:6px;white-space:nowrap}.library-return svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5}.library-return:active{transform:scale(.97)}.library-switch{display:block;margin:8px 10px 12px;padding:10px 0 0;border-top:1px solid #e4e8df;font-size:12px;color:#526b5a}.library-switch span{display:block;margin-bottom:5px;color:#82907f;font-size:10px}.library-switch:hover{text-decoration:underline;text-underline-offset:4px}@media(hover:hover){.library-return:hover{background:#eaf0e4}}@media(max-width:820px){.topbar{gap:8px;padding-left:12px;padding-right:12px}.library-return{padding:7px 9px}.topbar .breadcrumb{display:none}.topbar .search-launch{margin-left:auto}}@media(max-width:365px){.library-return{padding:7px}.library-return svg{display:none}.topbar .search-launch{padding:9px 7px;font-size:12px}.topbar .quiet-button{padding:8px 5px}.topbar .menu-toggle{padding:8px}.topbar{gap:6px}}