.shell-sidebar-reopen{animation:shell-sidebar-breathe 3.2s ease-in-out infinite}.shell-sidebar-footer-wrap{flex:0 0 auto;padding:12px;border-top:1px solid rgb(255 255 255 / 6%)}.shell-sidebar-accent-card{position:relative;isolation:isolate;min-height:96px;overflow:hidden;padding:14px 13px 12px;border:1px solid rgb(167 198 255 / 22%);border-radius:15px;background:linear-gradient(128deg,#285bc5,#1c4a9f 62%,#193c7c);box-shadow:0 8px 18px -12px #184ca5b3,inset 0 1px #ffffff21}.shell-sidebar-accent-card:before{position:absolute;z-index:-1;top:0;right:0;width:3px;height:100%;background:linear-gradient(180deg,#a9d9ff,#61d1d0 72%,#61d1d000);content:""}.shell-sidebar-accent-orbit{position:absolute;z-index:-1;top:-12px;right:-9px;width:86px;height:86px;overflow:visible;color:#c9e1ff;opacity:.2;pointer-events:none}.shell-sidebar-accent-orbit circle,.shell-sidebar-accent-orbit path{stroke:currentColor;stroke-width:1.3}.shell-sidebar-accent-kicker{margin:0 0 8px;color:#e8f1ffc2;font-size:8px;font-weight:800;letter-spacing:.12em;line-height:1}.shell-sidebar-accent-kicker span{padding-inline:2px;color:#9ee2e6}.shell-sidebar-accent-card strong{display:block;max-width:185px;color:#fff;font-size:12px;font-weight:700;line-height:1.5}.shell-sidebar-accent-tagline{display:block;margin-top:5px;color:#dde9faa6;font-size:9px;line-height:1.3}.shell-sidebar-accent-card.is-teacher{background:linear-gradient(128deg,#315bac,#234579 64%,#1d365d)}.shell-sidebar-reopen.is-peeking{left:240px;border-radius:0 .75rem .75rem 0;opacity:1;pointer-events:auto;animation:none;transition:left .18s ease,background-color .15s ease}.shell-sidebar-peek-panel{position:absolute;inset:0 auto 0 0;z-index:50;width:240px;transform:translate(-100%);visibility:hidden;pointer-events:none;transition:transform .18s ease,visibility 0s linear .18s}.shell-sidebar-peek-panel.is-visible{transform:translate(0);visibility:visible;pointer-events:auto;transition:transform .18s ease,visibility 0s;box-shadow:12px 0 32px #0f172a3d}@media (max-width: 640px){.shell-sidebar-footer-wrap{padding:10px 14px max(12px,env(safe-area-inset-bottom))}.shell-sidebar-accent-card{min-height:90px;padding:12px 13px 10px}}@keyframes shell-sidebar-breathe{0%,to{background-color:#57534e;box-shadow:0 2px 8px #1c19172e}50%{background-color:#44403c;box-shadow:0 2px 14px #1c191747,0 0 0 4px #57534e1a}}.shell-sidebar-reopen:hover,.shell-sidebar-reopen:focus-visible{animation:none;background-color:#292524}@media (prefers-reduced-motion: reduce){.shell-sidebar-reopen,.shell-sidebar-peek-panel{animation:none;transition:none}}.mp-shell-motion .mp-shell-tabbar a svg{transform-origin:50% 58%;transition:transform .22s cubic-bezier(.32,.86,.28,1),color .18s ease}.mp-shell-motion .mp-shell-tabbar a[aria-current=page] svg{transform:translateY(-1px) scale(1.06)}.mp-shell-motion .mp-shell-tabbar a:active svg{transform:scale(.92);transition-duration:90ms}.mp-shell-motion main button:active:not(:disabled){transform:scale(.985);transition-duration:.1s;-webkit-tap-highlight-color:transparent}.mp-shell-motion main :is(button,a,[role=button]){-webkit-tap-highlight-color:transparent}@media (prefers-reduced-motion: reduce){.mp-shell-motion .mp-shell-tabbar a svg,.mp-shell-motion main button:active:not(:disabled){transition:none;transform:none}}.spa-root{position:fixed;right:max(18px,env(safe-area-inset-right));bottom:max(18px,env(safe-area-inset-bottom));z-index:80;font-family:inherit}.spa-launcher{display:flex;min-height:42px;align-items:center;gap:8px;padding:0 14px;border:1px solid #d6e3f2;border-radius:999px;color:#fff;background:#3569a7;box-shadow:0 8px 24px #173c6733;cursor:pointer;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}.spa-launcher:hover{transform:translateY(-2px);background:#285990;box-shadow:0 12px 28px #173c6740}.spa-launcher>span:first-child{font-size:18px;line-height:1}.spa-launcher-label{font-size:12px;font-weight:700;white-space:nowrap}.spa-panel{position:absolute;right:0;bottom:calc(100% + 12px);display:flex;width:min(390px,calc(100vw - 28px));max-height:min(620px,calc(100dvh - 86px));flex-direction:column;overflow:hidden;border:1px solid #dce6f1;border-radius:18px;color:#253d5a;background:#fff;box-shadow:0 20px 48px -20px #16375d55,0 5px 16px #16375d12;animation:spa-enter .17s cubic-bezier(.2,.75,.25,1) both}.spa-head{display:flex;align-items:center;gap:10px;padding:13px 14px;border-bottom:1px solid #edf1f6;background:linear-gradient(110deg,#f4f8fd,#fff)}.spa-avatar{display:grid;width:34px;height:34px;flex:0 0 34px;place-items:center;border:1px solid #dbe7f5;border-radius:11px;color:#3569a7;background:#eaf2fb}.spa-head-copy{display:grid;min-width:0;flex:1;gap:3px}.spa-head-copy strong{color:#203752;font-size:13px}.spa-head-copy>span{color:#8291a4;font-size:10px}.spa-close{width:34px;height:34px;border-radius:9px;color:#718198;background:transparent;font-size:22px;cursor:pointer}.spa-close:hover{background:#edf3fa}.spa-context{flex:0 0 auto;padding:11px 14px;border-bottom:1px solid #edf1f6;background:#fbfcfe}.spa-context-toggle{display:flex;align-items:flex-start;gap:9px;cursor:pointer}.spa-context-toggle input{width:16px;height:16px;flex:0 0 16px;margin:2px 0 0;accent-color:#3569a7}.spa-context-toggle input:disabled{cursor:not-allowed}.spa-context-toggle>span{display:grid;gap:4px}.spa-context-toggle strong{color:#405a79;font-size:11px;line-height:1.4}.spa-context-toggle small{color:#8593a4;font-size:10px;line-height:1.4}.spa-preview-button{min-height:32px;margin:6px 0 0 25px;padding:0;color:#3569a7;background:transparent;font-size:10px;font-weight:700;cursor:pointer}.spa-preview{max-height:96px;margin:2px 0 0 25px;overflow:auto;border-left:2px solid #d6e3f2;padding:4px 8px;color:#63758b;font-size:10px;line-height:1.55}.spa-messages{display:flex;min-height:150px;flex:1 1 auto;flex-direction:column;gap:10px;padding:14px;overflow-y:auto;overscroll-behavior:contain}.spa-welcome{margin:auto 0;padding:4px 2px}.spa-welcome strong{color:#344f70;font-size:13px}.spa-welcome p{margin-top:5px;color:#718198;font-size:11px;line-height:1.6}.spa-message{display:flex;width:100%}.spa-message p{max-width:90%;padding:9px 11px;border:1px solid #e7edf5;border-radius:4px 13px 13px;color:#51657e;background:#f5f8fc;font-size:12px;line-height:1.65;white-space:pre-line;overflow-wrap:anywhere}.spa-message.is-user{justify-content:flex-end}.spa-message.is-user p{border-color:#dce8fb;border-radius:13px 4px 13px 13px;color:#fff;background:#3569a7}.spa-status{color:#8291a4;font-size:11px}.spa-error{flex:0 0 auto;padding:0 14px 8px;color:#a33e4a;font-size:11px}.spa-composer{display:flex;flex:0 0 auto;align-items:flex-end;gap:8px;padding:10px;border-top:1px solid #edf1f6;background:#fff}.spa-composer textarea{min-width:0;min-height:42px;max-height:100px;flex:1 1 auto;resize:vertical;padding:10px 11px;border:1px solid #e0e8f1;border-radius:12px;outline:0;color:#283e59;background:#f9fbfd;font:inherit;font-size:12px;line-height:1.5}.spa-composer textarea:focus{border-color:#9bb8dc;box-shadow:0 0 0 3px #3569a714}.spa-composer textarea::placeholder{color:#94a1b1}.spa-composer button{display:grid;width:42px;height:42px;flex:0 0 42px;place-items:center;border-radius:12px;color:#fff;background:#3569a7;font-size:20px;cursor:pointer}.spa-composer button:disabled{color:#aab6c4;background:#edf1f5;cursor:not-allowed}.spa-footnote{flex:0 0 auto;padding:0 12px 9px;color:#98a4b2;text-align:center;font-size:9px}.spa-root button:focus-visible,.spa-context-toggle input:focus-visible,.spa-composer textarea:focus-visible{outline:2px solid #7da5e8;outline-offset:2px}@keyframes spa-enter{0%{opacity:0;transform:translateY(5px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 520px){.spa-root{right:max(12px,env(safe-area-inset-right));bottom:max(12px,env(safe-area-inset-bottom))}.spa-panel{width:min(390px,calc(100vw - 24px));max-height:calc(100dvh - 74px)}}.spa-root.is-miniprogram{bottom:calc(4.25rem + max(.35rem,env(safe-area-inset-bottom,0px)))}@media (prefers-reduced-motion: reduce){.spa-panel{animation:none}.spa-launcher{transition:none}}