:root{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#243248;background:#f1f4f9;font-synthesis:none;--blue:#4d7df4;--muted:#8692a4;--line:#e3e8f1;--focus:#315cd3}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;border:0}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}a{color:#3864b5;text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}.app-layout{display:grid;grid-template-columns:235px minmax(0,1fr);height:100dvh;min-height:460px;overflow:hidden}.sidebar{background:#f7f9fc;border-right:1px solid #e5eaf2;padding:22px 15px 17px;display:flex;flex-direction:column;min-height:0}.brand{display:flex;gap:8px;align-items:center;color:#1c2e43;text-decoration:none!important;white-space:nowrap;margin-bottom:23px}.brand img{width:29px;height:29px;mix-blend-mode:multiply}.brand strong{font-size:12px;letter-spacing:-.25px;font-weight:650}.new-conversation{height:35px;border-radius:6px;border:1px solid #d8d8ff;background:#ececff;color:#6959e4;font-size:13px}.new-conversation:hover{background:#e4e6ff}.new-conversation span{font-size:18px;vertical-align:-1px}.history-heading{font-size:12px;color:#7d8898;margin:23px 7px 12px}.history-heading span{font-size:11px;color:#98a3b3;margin-left:4px}.history-list{flex:1;overflow:auto;scrollbar-width:thin;display:flex;flex-direction:column;gap:5px;min-height:0}.empty-history{margin:auto;text-align:center;font-size:12px;color:#8d96a4}.history-item{padding:11px 9px;border:1px solid transparent;border-radius:7px;text-align:left;background:transparent;color:#6c7a90;font-size:12px;line-height:1.7;flex-shrink:0}.history-item.active{background:#eaf0fc;border-color:#e0e7f6;color:#385e9d}.history-item:hover{background:#eef2f9}.history-item span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item small{font-size:10px;color:#95a0b1}.sidebar-bottom{display:grid;gap:2px;border-top:1px solid #e8ecf3;padding-top:10px;margin-top:15px}.sidebar-bottom button{color:#8c97a9;text-align:left;font-size:11px;background:transparent;padding:7px}.sidebar-bottom button:hover{color:#446cac}.main-column{min-width:0;min-height:0;display:flex;flex-direction:column}.toolbar{height:62px;min-height:62px;padding:0 max(24px,calc((100% - 850px)/2));display:flex;align-items:center;gap:20px;justify-content:space-between}.connection-status{color:#9a8b73;font-size:10px;white-space:nowrap}.toolbar-options{display:flex;gap:22px;align-items:center}.toggle-control{display:flex;align-items:center;gap:6px;font-size:12px;position:relative;cursor:pointer;white-space:nowrap;color:#657186}.toggle-control small{color:#99a3b5;font-size:9px;margin-left:4px}.toggle-control input{position:absolute;opacity:0;width:28px;height:22px;left:0;top:0;margin:0}.switch{width:25px;height:14px;background:#c7d0df;border-radius:9px;position:relative;transition:background .16s}.switch:after{content:"";position:absolute;width:10px;height:10px;left:2px;top:2px;background:white;border-radius:50%;transition:transform .16s}.toggle-control input:checked+.switch{background:#7d9bda}.toggle-control input:checked+.switch:after{transform:translateX(11px)}.toggle-control input:focus-visible+.switch{outline:3px solid var(--focus);outline-offset:3px}.messages{flex:1;overflow:auto;min-height:0;padding:0 max(28px,calc((100% - 790px)/2)) 20px;scrollbar-width:thin;scrollbar-color:#d5ddeb transparent;overscroll-behavior:contain}.welcome{padding-top:clamp(25px,8vh,100px);padding-bottom:20px;max-width:790px;margin:auto}.welcome-logo{display:block;width:98px;height:98px;margin:0 auto 51px;mix-blend-mode:multiply}.welcome h1{text-align:center;font-size:21px;letter-spacing:.2px;color:#161e2c;font-weight:600;margin:0 0 39px}.welcome-text{background:#e8edf4;color:#354559;border-radius:11px;padding:13px 15px;font-size:13px;line-height:1.85;margin:0 0 16px}.starter-list{display:flex;align-items:flex-start;flex-direction:column;gap:11px}.starter-list button,.follow-ups button{border:1px solid #dfe5ee;background:#f9fbfe;border-radius:11px;padding:12px 15px;font-size:13px;color:#3c4a60;text-align:left;line-height:1.6;max-width:100%;transition:background .15s,border-color .15s}.starter-list button:hover,.follow-ups button:hover{background:#fff;border-color:#bbcbed}.welcome-boundary{font-size:10px;color:#99a4b5;line-height:1.7;margin:17px 3px 0}.message{margin:16px 0 23px}.message-user{display:flex;justify-content:flex-start}.user-bubble{background:var(--blue);color:white;border-radius:15px 15px 15px 4px;padding:13px 18px;max-width:94%;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.8}.answer-card{background:#fff;border:1px solid #e4e9f1;border-radius:16px;padding:19px 20px;overflow-wrap:anywhere;box-shadow:0 3px 12px #34557e03}.answer-label{font-size:10px;color:#8d99ae;margin-bottom:12px}.answer-label.demo{color:#9a7e3a}.answer-content{white-space:pre-wrap;font-size:14px;line-height:1.95;word-break:break-word}.thinking{background:#f6f7fc;border-radius:8px;margin:0 0 11px}.thinking summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer;padding:12px;color:#7c8190;font-size:12px}.thinking summary::-webkit-details-marker{display:none}.thinking summary:after{content:"⌄";font-size:17px;color:#959eae}.thinking[open] summary:after{transform:rotate(180deg)}.thinking summary span{display:flex;gap:8px;align-items:center}.thinking-symbol{display:inline-grid;place-items:center;width:16px;height:16px;font-style:normal;border-radius:50%;color:#8c76d7;background:#eae6ff}.thinking:nth-of-type(2) .thinking-symbol{background:#fcf0cf;color:#b9942d}.thinking-text{padding:0 16px 14px 36px;font-size:12px;color:#929aac;line-height:1.9;white-space:pre-wrap}.citation{display:inline-flex;border-radius:4px;padding:0 4px;line-height:1.6;background:#edf3ff;color:#3565b8;vertical-align:super;font-size:10px;margin:0 2px}.sources-row{display:flex;flex-wrap:wrap;gap:7px;align-items:center;font-size:11px;color:#8d99aa;margin-top:13px}.sources-row button{background:#f5f8fd;border:1px solid #e8edf4;color:#6280ad;font-size:11px;padding:6px 9px;border-radius:6px;text-align:left}.message-actions{display:flex;align-items:center;gap:12px;font-size:10px;color:#929caf;margin:8px 1px}.message-actions button{background:transparent;color:#919db1;font-size:11px;padding:6px 2px}.message-actions button:hover{color:#4269ac}.message-actions .status{margin-left:auto}.follow-ups{display:flex;align-items:flex-start;flex-direction:column;gap:9px;margin-top:20px}.follow-ups>span{font-size:12px;color:#9099a9;margin-bottom:3px}.follow-ups button{font-size:12px;padding:10px 13px}.composer-area{width:100%;max-width:875px;margin:0 auto;padding:10px 24px 13px}.composer-row{display:flex;align-items:flex-end;gap:10px}.clear-button{width:35px;height:35px;flex-shrink:0;border-radius:50%;border:1px solid #e3e9f2;background:#f8fafd;color:#8494ab;font-size:21px;margin-bottom:3px}.clear-button:hover{background:white;color:#4165a1}.composer{background:#fff;border:1px solid #e2e8f1;border-radius:13px;box-shadow:0 3px 8px #1c456707;display:flex;gap:10px;align-items:flex-end;min-width:0;flex:1;padding:10px 12px 9px}.composer:focus-within{border-color:#b4c8ee;box-shadow:0 0 0 3px #6a8fcc09}.composer textarea{resize:none;border:0;outline:0;min-width:0;flex:1;min-height:22px;max-height:130px;font-size:14px;line-height:1.65;padding:0;color:#32435c;background:transparent}.composer textarea::placeholder{color:#99a3b3}.composer-tools{display:flex;align-items:center;gap:9px;height:24px;flex-shrink:0}.icon-button{display:inline-grid;place-items:center;background:transparent;color:#7f8fa6;width:26px;height:27px;padding:0;border-radius:5px;font-size:20px;flex-shrink:0}.icon-button:hover{background:#edf2f9}.icon-button[aria-disabled=true]{color:#aeb8c7;cursor:not-allowed}.input-divider{height:17px;width:1px;background:#e3e7f0;margin:0 3px}#send-button,#stop-button{background:transparent;color:#7ca4ff;font-size:22px;width:28px;height:27px;display:grid;place-items:center;padding:0}#send-button:hover{color:#3567d7}#stop-button{font-size:15px;color:#4d78c3}.composer-note{font-size:10px;color:#a1aab9;display:flex;justify-content:space-between;gap:12px;line-height:1.6;padding:8px 0 0 47px}#menu-button{display:none}.sidebar-scrim{display:none}dialog{border:1px solid #e1e7f1;border-radius:17px;width:min(650px,calc(100% - 30px));max-height:87dvh;padding:22px 25px;color:#3b4b65;box-shadow:0 25px 90px #18345a30}dialog::backdrop{background:#30456435;backdrop-filter:blur(3px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:12px}.dialog-head h2{font-size:17px;font-weight:600;margin:0}#dialog-body{font-size:13px;line-height:1.9;overflow-wrap:anywhere}#dialog-body p{color:#74819a}#dialog-body pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f5f7fb;border:1px solid #e7edf5;padding:15px;border-radius:9px;font:inherit;font-size:12px}#dialog-body dl{display:grid;grid-template-columns:65px 1fr;gap:8px;font-size:11px}#dialog-body dt{color:#94a0b2}#dialog-body dd{margin:0;color:#607592}.dialog-buttons{display:flex;justify-content:flex-end;gap:12px;margin-top:18px}.primary,.secondary{border-radius:8px;font-size:13px;padding:9px 14px}.primary{background:#507ded;color:white}.secondary{background:#edf2fb;color:#5e7ead}.demo-warning,.source-warning{font-size:11px;background:#fbf7ec;color:#937b40;padding:10px 12px;border-radius:7px}.preview-image{display:block;width:min(320px,100%);height:auto;margin:5px auto;max-height:55dvh;object-fit:contain}.preview-caption{text-align:center;font-size:12px}#notice{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#fff;border:1px solid #dce4f1;border-radius:11px;padding:12px 18px;color:#586d8d;box-shadow:0 8px 30px #24457220;max-width:min(640px,calc(100% - 28px));width:max-content;font-size:12px;line-height:1.8;z-index:5}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1800px){.toolbar{padding-left:calc((100% - 890px)/2);padding-right:calc((100% - 890px)/2)}.welcome{padding-top:11vh}.welcome-logo{width:105px;height:105px;margin-bottom:65px}.welcome h1{margin-bottom:40px}}
@media(max-width:1050px){.app-layout{grid-template-columns:215px minmax(0,1fr)}.sidebar{padding-left:12px;padding-right:12px}.brand strong{font-size:11px}.toolbar{padding:0 25px;gap:12px}.toolbar-options{gap:15px}.toggle-control small{display:none}.messages{padding-left:25px;padding-right:25px}.welcome-logo{width:84px;height:84px;margin-bottom:35px}.welcome h1{margin-bottom:27px}.welcome{padding-top:7vh}.composer-note{font-size:9px}}
@media(max-width:700px){.app-layout{display:block;min-height:390px}.sidebar{position:fixed;left:0;top:0;bottom:0;width:250px;z-index:4;transform:translateX(-100%);transition:transform .2s;background:#f7f9fc;box-shadow:12px 0 40px #28457715}.sidebar.open{transform:translateX(0)}.sidebar-scrim:not([hidden]){display:block;position:fixed;inset:0;background:#233b632b;z-index:3;border:0}.main-column{height:100%;overflow:hidden}.toolbar{height:54px;min-height:54px;padding:0 16px;gap:9px;border-bottom:1px solid #e9edf4}#menu-button{display:grid;width:25px;font-size:17px}.connection-status{font-size:9px;margin-right:auto}.toolbar-options{gap:12px}.toggle-control{font-size:10px;gap:4px}.switch{width:22px;height:13px}.switch:after{width:9px;height:9px}.toggle-control input:checked+.switch:after{transform:translateX(9px)}.speech-control span:last-child{font-size:9px}.messages{padding:0 17px 13px}.welcome{padding-top:clamp(26px,7vh,60px)}.welcome-logo{width:72px;height:72px;margin-bottom:27px}.welcome h1{font-size:18px;margin-bottom:27px;letter-spacing:0}.welcome-text{font-size:12px;padding:12px 13px;line-height:1.9;border-radius:10px;margin-bottom:13px}.starter-list{gap:9px}.starter-list button{font-size:12px;padding:11px 13px;border-radius:10px}.welcome-boundary{font-size:9px;margin-top:15px}.composer-area{padding:8px 13px max(10px,env(safe-area-inset-bottom))}.composer-row{gap:7px}.clear-button{width:29px;height:29px;font-size:18px;margin-bottom:4px}.composer{padding:9px 10px;border-radius:11px;gap:6px}.composer textarea{font-size:14px;max-height:110px}.composer-tools{gap:3px}.composer-tools .icon-button{width:22px;font-size:18px}.input-divider{margin:0 4px}#send-button,#stop-button{width:21px;font-size:19px}#stop-button{font-size:13px}.composer-note{padding-left:37px;font-size:8px;gap:6px;min-height:25px}.composer-note #input-hint{display:none}.message{margin:14px 0 20px}.user-bubble{font-size:13px;padding:11px 14px;max-width:96%;border-radius:12px 12px 12px 4px}.answer-card{padding:14px;border-radius:13px}.answer-content{font-size:13px;line-height:1.95}.answer-label{font-size:9px;margin-bottom:10px}.thinking summary{font-size:11px;padding:10px}.thinking-text{font-size:11px;padding:0 11px 11px 18px}.sources-row{font-size:10px;gap:6px}.sources-row button{font-size:10px}.message-actions{font-size:9px;gap:9px}.message-actions button{font-size:10px}.follow-ups{margin-top:17px;gap:8px}.follow-ups button{font-size:11px;padding:10px 12px}.follow-ups>span{font-size:11px}.brand strong{font-size:12px}.sidebar-bottom button{font-size:12px;padding:10px 7px}.history-item{font-size:13px}.new-conversation{height:39px}dialog{padding:19px 18px}.dialog-head h2{font-size:16px}#notice{bottom:18px;font-size:12px}}
@media(max-width:370px){.toolbar{padding:0 12px}.toolbar-options{gap:8px}.connection-status{font-size:8px}.speech-control{display:none}.messages{padding-left:14px;padding-right:14px}.welcome-text{font-size:11px}.starter-list button{font-size:11px}.welcome h1{font-size:17px}.composer-tools{gap:0}.composer-tools .icon-button{width:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}@media(prefers-reduced-transparency:reduce){dialog::backdrop{backdrop-filter:none}}
.avatar-mount{height:min(55dvh,510px);width:100%;position:relative}.avatar-mount .preview-image{height:100%;width:100%;margin:0;object-fit:contain}.avatar-mount canvas{position:absolute;inset:0}.preview-caption{margin:12px 0;font-size:12px}#avatar-boundary{font-size:11px;line-height:1.85}@media(max-width:700px){.sidebar-scrim:not([hidden]){left:250px}}
.answer-heading{font-size:15px;color:#263c60}.answer-content strong{font-weight:600}.answer-content code{background:#f2f5fa;color:#405d88;padding:2px 5px;border-radius:4px;font-size:.93em}@media(max-width:700px){.answer-heading{font-size:14px}}
.welcome-boundary{display:none}.toolbar-options{margin-left:auto}.message-actions [data-action=speak]{display:none}.composer-note{justify-content:flex-end}
.pending-attachments{width:100%;max-width:875px;margin:0 auto;padding:5px 24px 0 70px;display:flex;gap:8px;flex-wrap:wrap}.attachment-chip{display:flex;align-items:center;gap:7px;padding:6px 9px;background:white;border:1px solid #dce5f3;border-radius:9px;max-width:100%;font-size:11px;color:#536d92}.attachment-chip>span{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-chip img{width:28px;height:28px;object-fit:cover;border-radius:4px}.attachment-chip button{background:transparent;color:#8e9bb0;font-size:17px;padding:1px 5px}.user-message-wrap{max-width:95%;min-width:0}.user-message-wrap .user-bubble{max-width:100%}.message-attachments{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 9px}.attachment-card{display:flex;align-items:center;gap:9px;padding:8px 11px;border:1px solid #dce5f3;background:#fff;border-radius:10px;font-size:12px;color:#5d769d;max-width:100%;overflow-wrap:anywhere}.attachment-card img{width:86px;height:70px;object-fit:contain;border-radius:5px}.attachment-card>span:first-child{font-size:25px}.toggle-control input:disabled+.switch{opacity:.5}@media(max-width:700px){.pending-attachments{padding:4px 14px 0 51px}.attachment-chip{font-size:10px}.attachment-chip>span{max-width:175px}.attachment-card{font-size:11px}.attachment-card img{width:70px;height:60px}}

.attachment-chip small{display:block;font-size:11px;line-height:1.45;font-weight:400;color:#738197;white-space:normal;max-width:260px}.message-actions [data-action="speak"]{display:inline-flex}

/* 2026-10: original product, study and teaching workspaces */
:root{color:#242831;background:#fcfcfd;--blue:#4e6ef2;--muted:#7d8492;--line:#e9ebf0;--focus:#4e6ef2}button{transition:background .16s,color .16s}button:disabled{cursor:default}.app-layout{grid-template-columns:220px minmax(0,1fr) 276px;min-height:520px}.sidebar{background:#f6f7f9;padding:24px 15px 18px;border-color:#eceef2}.brand{gap:9px;margin-bottom:27px}.brand strong{font-size:12px;color:#323640;letter-spacing:0}.brand img{width:30px;height:30px}.new-conversation{height:42px;border:1px solid #dce2f5;border-radius:12px;background:#edf1ff;color:#4e6ae4;text-align:left;padding-left:15px;font-weight:500}.new-conversation:hover{background:#e3eaff}.product-nav{margin:23px 0 17px;display:flex;flex-direction:column;gap:5px}.product-nav-item{display:flex;align-items:center;gap:12px;padding:10px 13px;color:#646b79;background:transparent;border-radius:10px;font-size:13px;text-align:left}.product-nav-item span{font-size:20px;width:20px;line-height:1;color:#8992a5}.product-nav-item.active{background:#e9edf5;color:#2c374d;font-weight:600}.product-nav-item.active span{color:#607ad6}.product-nav-item:hover{background:#e9edf3}.history-heading{margin:11px 11px 10px;font-size:11px;color:#a1a7b2}.history-item{font-size:12px;color:#727a88;padding:10px 12px;border-radius:9px}.history-item.active{background:#eceff5;border-color:transparent;color:#465775}.history-item small{display:none}.empty-history{font-size:11px;color:#a1a7b2;margin:18px 12px;text-align:left}.sidebar-bottom{border-color:#e6e9ef}.sidebar-bottom button{font-size:12px;color:#697487;padding:10px}.sidebar-credit{padding:15px 10px 0;color:#8b94a4;font-size:9px;line-height:1.9}.sidebar-credit span{color:#a4abb6}.main-column{background:linear-gradient(180deg,#fcfcfd,#fdfdfe);position:relative}.toolbar{height:70px;min-height:70px;padding:0 29px;gap:16px;border-bottom:1px solid #f0f1f5}.page-label{font-size:14px;font-weight:600;color:#333a47;white-space:nowrap}.page-label span{font-size:10px;color:#9aa1af;font-weight:400;margin-left:12px}.toolbar-options{gap:16px;margin-left:auto}.toggle-control{font-size:11px;color:#9199a7}.switch{background:#dce0e7}.toggle-control input:checked+.switch{background:#8098ec}.messages{padding:0 max(30px,calc((100% - 760px)/2)) 20px;scrollbar-color:#e1e5ed transparent}.welcome{padding-top:clamp(22px,5vh,56px);max-width:660px;padding-bottom:24px}.welcome-logo{width:66px;height:66px;margin:0 0 23px;mix-blend-mode:multiply}.welcome h1{font-size:28px;font-weight:600;text-align:left;margin:0 0 12px;letter-spacing:-.5px;color:#292f3b}.welcome-tagline{font-size:14px;line-height:1.9;color:#9198a5;margin:0 0 28px}.welcome-text{display:none}.welcome-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 28px}.welcome-tool{background:#fff;border:1px solid #e9ecf3;border-radius:13px;padding:17px 14px;text-align:left;color:#3d4659;box-shadow:0 3px 10px #59658303}.welcome-tool:hover{border-color:#ccd6f2;background:#fafbff;transform:translateY(-2px)}.welcome-tool .tool-glyph{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:9px;background:#edf1ff;color:#6b7fd4;font-size:16px;margin-bottom:11px}.welcome-tool b{display:block;font-weight:500;font-size:12px}.welcome-tool small{display:block;font-size:10px;color:#9da5b2;margin-top:6px}.suggested-heading{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:#a1a8b5;margin-bottom:11px}.suggested-heading button{background:none;color:#929bad;font-size:10px}.starter-list{gap:0;align-items:stretch}.starter-list button{border:0;border-bottom:1px solid #f0f1f6;border-radius:0;padding:12px 1px;font-size:12px;background:none;color:#6f798b;display:flex;justify-content:space-between}.starter-list button:after{content:'↗';color:#aab3c3;font-size:15px}.starter-list button:hover{background:#f6f8fc;color:#4e6ef2}.message-user{justify-content:flex-end}.user-message-wrap{max-width:88%}.user-bubble{background:#edf2ff;color:#3d4d73;border-radius:16px 16px 4px 16px;padding:12px 18px;font-size:14px}.answer-card{border:0;border-radius:0;background:transparent;padding:10px 0;box-shadow:none}.answer-label{display:flex;align-items:center;gap:8px;font-size:11px;color:#748199;margin-bottom:15px}.answer-label:before{content:'';width:25px;height:25px;display:inline-block;background:url('/logo.png') center/contain no-repeat}.answer-content{font-size:14px;line-height:2.05;color:#343d4d}.answer-heading{color:#28354a;font-size:15px}.thinking{background:#f4f5f8;border-radius:10px}.thinking summary{padding:11px 13px;font-size:11px}.sources-row button{background:#f4f6fa;border:1px solid #e8ecf3;font-size:10px;color:#7c8ca8;border-radius:7px}.message-actions{margin:5px 0;gap:16px}.message-actions button{font-size:10px;color:#969fad}.follow-ups{gap:7px;margin-top:20px}.follow-ups>span{font-size:10px}.follow-ups button{padding:8px 12px;background:#f7f8fb;border-color:#edf0f5;font-size:11px;border-radius:9px;color:#7a879c}.composer-area{max-width:820px;padding:12px 28px 15px}.composer-row{position:relative;display:block}.clear-button{position:absolute;bottom:13px;right:132px;z-index:1;border:0;width:25px;height:25px;background:transparent;color:#a8afbb;display:none}.composer{padding:15px 17px 10px;border:1px solid #e0e5ef;border-radius:20px;box-shadow:0 7px 28px #63728a08;display:flex;flex-direction:column;align-items:stretch;gap:12px;min-height:116px;background:#fff}.composer:focus-within{border-color:#b9c6ef;box-shadow:0 5px 24px #7284af0c}.composer textarea{font-size:14px;line-height:1.8;min-height:43px;width:100%;flex:initial}.composer-tools{height:29px;gap:12px}.composer-tool-label{background:#f7f8fb;color:#949dae;border:1px solid #eceef4;border-radius:7px;font-size:10px;padding:4px 9px}.composer-tools .input-divider{margin-left:auto;background:transparent}#send-button,#stop-button{width:30px;height:30px;border-radius:10px;background:#4e6ef2;color:#fff;font-size:22px}#send-button:disabled{background:#cbd4f5}#send-button:hover{background:#395be0;color:#fff}#stop-button{font-size:12px}.composer-note{padding:10px 3px 0;font-size:9px;justify-content:space-between;color:#aeb5c1}.composer-context{font-size:10px;color:#7e8ba7;display:flex;align-items:center;justify-content:space-between;margin:0 5px 8px}.composer-context button{background:none;color:#a1aabd;font-size:11px}.pending-attachments{padding:7px 28px 0;max-width:820px}.companion{margin:16px 16px 16px 0;border-radius:20px;border:1px solid #e9ecf3;background:linear-gradient(150deg,#f8faff,#f3f5fa);min-height:0;overflow:auto;display:flex;flex-direction:column;position:relative}.companion-heading{display:flex;align-items:center;justify-content:space-between;padding:21px 21px 0;font-size:10px;color:#959fb3}.companion-heading button{font-size:17px;color:#a6aebc}.companion-portrait{position:relative;margin:16px 9px 0;height:255px;min-height:200px;overflow:hidden;flex-shrink:0;border-radius:16px}.companion-portrait img{width:100%;height:100%;object-fit:cover;object-position:center top;mix-blend-mode:multiply}.companion-portrait:after{content:'';position:absolute;inset:auto 0 0;height:45px;background:linear-gradient(transparent,#f6f8fc);pointer-events:none}.companion-portrait canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.companion-intro{text-align:center;padding:14px 18px 0}.companion-intro h2{font-size:20px;font-weight:600;color:#414f67;margin:0 0 7px}.companion-intro>span{font-size:9px;color:#9fa9b9;background:#e9edf5;padding:3px 8px;border-radius:20px}.companion-intro p{font-size:11px;color:#8b96a8;line-height:1.9;margin:16px 0 20px}.voice-room-button{width:100%;border:1px solid #dce3f2;border-radius:11px;padding:11px;background:#fff;color:#6782c4;font-size:15px;box-shadow:0 3px 8px #637faf05}.voice-room-button span{font-size:12px;margin-left:8px}.companion-divider{height:1px;background:#e6eaf2;margin:25px 20px 22px}.companion-prompts{padding:0 20px}.companion-prompts>span{font-size:10px;color:#a3adbd}.companion-prompts>button{width:100%;display:flex;justify-content:space-between;text-align:left;background:transparent;color:#7b8aa3;font-size:11px;line-height:1.6;padding:13px 0;border-bottom:1px solid #e9edf5}.companion-prompts>button span{color:#b1bbcd}.companion-bottom{margin-top:auto;text-align:center;padding:25px 10px;font-size:9px;color:#adb6c6}.mobile-companion{display:none}.companion-scrim{display:none}.app-layout.companion-hidden{grid-template-columns:220px minmax(0,1fr)}.app-layout.companion-hidden .companion{display:none}.app-layout.companion-hidden .mobile-companion{display:block}.workspace{flex:1;min-height:0;overflow:auto;padding:32px 30px 40px;scrollbar-width:thin}.workspace h1{font-size:26px;margin:0 0 10px;font-weight:600;color:#303848}.workspace-lead{font-size:12px;color:#939cac;line-height:1.9;margin:0 0 26px}.workspace-label{font-size:10px;letter-spacing:1px;color:#a1a9b8;margin-bottom:12px}.tool-section-title{font-size:13px;color:#68758e;margin:25px 0 13px}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{border:1px solid #e5e9f1;background:#fff;border-radius:14px;display:flex;align-items:flex-start;gap:14px;padding:20px;text-align:left;min-height:120px}.tool-card:hover{border-color:#becbf1;background:#fcfcff}.tool-card .tool-glyph{font-size:21px;color:#7890d9;width:37px;height:37px;display:grid;place-items:center;background:#eef2ff;border-radius:11px;flex-shrink:0}.tool-card strong{display:block;font-size:14px;font-weight:500;color:#3f4b62;margin:2px 0 9px}.tool-card p{font-size:11px;color:#98a2b4;margin:0;line-height:1.8}.tool-card em{font-style:normal;display:block;font-size:9px;color:#b1b9c7;margin-top:10px}.local-note{font-size:10px;color:#a3adbe;background:#f7f8fb;border-radius:9px;padding:10px 14px;line-height:1.8;margin-top:20px}.form-panel{background:#fff;border:1px solid #e6eaf2;border-radius:16px;padding:24px;margin:15px 0}.form-panel h2{font-size:16px;font-weight:600;margin:0 0 20px;color:#48566d}.field-label{display:block;font-size:12px;color:#7d899e;margin:16px 0 8px}.workspace textarea,.workspace input[type=text],.workspace select,.task-dialog textarea,.task-dialog input,.task-dialog select{width:100%;border:1px solid #e0e6f0;background:#fbfcfe;color:#45546d;border-radius:10px;padding:12px;font:inherit;font-size:12px;line-height:1.8;outline-offset:3px;resize:vertical}.workspace textarea:focus,.workspace input:focus,.workspace select:focus,.task-dialog textarea:focus,.task-dialog input:focus{outline:2px solid #b3c3f0}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;margin-top:20px}.primary{background:#4e6ef2;border-radius:9px;font-size:12px;padding:10px 15px}.secondary{background:#f0f3fa;color:#8090af;border-radius:9px;font-size:12px;padding:10px 15px}.empty-workspace{text-align:center;border:1px dashed #dfe5f0;border-radius:15px;padding:50px 20px;color:#a0aabc;background:#fcfdff}.empty-workspace strong{display:block;font-size:15px;font-weight:500;color:#77859d;margin-bottom:10px}.empty-workspace p{font-size:12px;line-height:1.9}.work-tabs{display:flex;gap:8px;border-bottom:1px solid #e8edf4;padding-bottom:12px;margin:24px 0}.work-tabs button{background:none;color:#97a2b6;font-size:12px;border-radius:8px;padding:8px 13px}.work-tabs button.active{background:#edf2ff;color:#5674cc}.card-record,.review-item,.strategy-record{background:#fff;border:1px solid #e5eaf2;border-radius:14px;padding:20px;margin:14px 0}.card-record h3,.review-item h3{font-size:15px;color:#4d5b73;margin:0 0 10px;font-weight:500}.card-record p,.review-item p{font-size:12px;line-height:1.95;color:#8592a8;white-space:pre-wrap}.record-meta{display:flex;align-items:center;justify-content:space-between;color:#a4aec0;font-size:10px;margin-bottom:12px}.record-meta span{border-radius:5px;padding:3px 7px;background:#f1f4fa;color:#8d9bb5}.card-record .card-text{max-height:140px;overflow:auto}.review-item textarea{min-height:90px}.strategy-record strong{font-size:13px;color:#6279af;font-weight:500}.strategy-record p{font-size:12px;color:#8a97ad;line-height:1.9;margin:10px 0}.strategy-record small{font-size:9px;color:#a7b1c1}.teacher-head{display:flex;justify-content:space-between;align-items:flex-start}.teacher-head button{flex-shrink:0}.compact-flow{display:flex;align-items:center;justify-content:space-between;background:#f4f6fb;border-radius:10px;font-size:10px;color:#94a0b5;padding:15px 18px;gap:7px;margin-bottom:19px}.compact-flow b{font-size:10px;font-weight:500;color:#6e83b2}.consent-line{display:flex;gap:7px;align-items:flex-start;font-size:10px;line-height:1.8;color:#9ca8bb;margin-top:14px}.consent-line input{margin-top:3px;flex-shrink:0}.task-dialog>p{font-size:12px}.task-dialog .field-label{font-size:11px}.voice-stage{text-align:center;padding:18px 10px 8px}.voice-stage img{width:100px;height:100px;border-radius:50%;object-fit:cover;object-position:top;border:5px solid #f0f3fb}.voice-stage h3{font-size:18px;font-weight:500;color:#4e5d77;margin:15px 0 10px}.voice-stage p{font-size:12px;color:#9aa6bb}.voice-indicator{display:flex;gap:5px;align-items:center;justify-content:center;height:35px;margin:20px}.voice-indicator i{display:block;width:4px;height:8px;background:#b7c7ef;border-radius:3px}.voice-indicator i:nth-child(2),.voice-indicator i:nth-child(4){height:17px}.voice-indicator i:nth-child(3){height:26px}.voice-stage .dialog-buttons{justify-content:center;margin-top:25px}.task-back{background:none;color:#a0acc1;font-size:11px;padding:0;margin-bottom:20px}dialog{width:min(630px,calc(100% - 30px));border-radius:18px;border-color:#e5eaf3;padding:25px 27px}#dialog-body p{color:#8c99af}#notice{color:#7586a4;border-color:#e1e7f1;z-index:30}#menu-button{display:none}.companion-heading #close-companion{display:grid}
@media(min-width:1700px){.app-layout{grid-template-columns:245px minmax(0,1fr) 340px}.companion-portrait{height:335px}.companion{margin-right:22px}.welcome{padding-top:9vh}.toolbar{padding-left:35px;padding-right:35px}.app-layout.companion-hidden{grid-template-columns:245px minmax(0,1fr)}}
@media(max-width:1150px){.app-layout{grid-template-columns:195px minmax(0,1fr) 235px}.sidebar{padding:20px 11px}.brand strong{font-size:10px}.brand img{width:26px;height:26px}.companion{margin:12px 12px 12px 0}.companion-portrait{height:205px;min-height:180px}.companion-intro{padding:10px 13px}.companion-heading{padding:17px 16px 0}.companion-divider{margin:19px 16px}.companion-prompts{padding:0 15px}.page-label span{display:none}.toolbar{padding:0 22px}.messages{padding-left:25px;padding-right:25px}.welcome h1{font-size:25px}.welcome-tool{padding:14px 10px}.welcome-tool small{font-size:9px}.workspace{padding:26px 23px}.tool-card{padding:16px;gap:10px}.tool-card strong{font-size:13px}.app-layout.companion-hidden{grid-template-columns:195px minmax(0,1fr)}}
@media(max-width:950px) and (min-width:701px){.app-layout{grid-template-columns:190px minmax(0,1fr)}.companion{display:none}.mobile-companion{display:block}.app-layout .companion.open{display:flex;position:fixed;right:0;top:0;bottom:0;width:290px;z-index:12;margin:12px;background:#f7f9fd;box-shadow:0 12px 80px #40577920}.companion-scrim:not([hidden]){display:block;position:fixed;inset:0;background:#25385e33;z-index:11}.mobile-companion{width:31px;height:31px;padding:0;border-radius:50%;overflow:hidden;border:1px solid #e1e6f1}.mobile-companion img{width:100%;height:100%;object-fit:cover;object-position:top}}
@media(max-width:700px){.app-layout,.app-layout.companion-hidden{display:block;min-height:400px}.sidebar{position:fixed;width:260px;z-index:20;background:#f6f7fa;transform:translateX(-100%);padding:24px 17px}.sidebar.open{transform:translateX(0)}.brand strong{font-size:13px}.brand img{width:30px;height:30px}.sidebar-scrim:not([hidden]){display:block;left:260px;z-index:19}.new-conversation{height:44px}.product-nav{margin:23px 0 20px}.product-nav-item{font-size:14px;padding:12px}.history-list{min-height:100px}.history-item{font-size:13px;padding:12px}.sidebar-credit{font-size:10px}.main-column{height:100dvh;overflow:hidden}.toolbar{height:58px;min-height:58px;padding:0 17px;gap:13px}.page-label{font-size:13px}.toolbar-options{gap:13px}.page-label span{display:none}.toggle-control{font-size:10px}.speech-control{display:none}#menu-button{display:grid;color:#8997af;width:20px}.mobile-companion{display:block;width:29px;height:29px;padding:0;border-radius:50%;overflow:hidden;border:1px solid #e0e5ef;background:#f2f5fa}.mobile-companion img{width:100%;height:100%;object-fit:cover;object-position:top}.messages{padding:0 23px 13px}.welcome{padding-top:35px;padding-bottom:15px}.welcome-logo{width:57px;height:57px;margin-bottom:20px}.welcome h1{font-size:25px;line-height:1.5;margin-bottom:9px}.welcome-tagline{font-size:12px;line-height:1.9;margin-bottom:24px}.welcome-tools{gap:8px;margin-bottom:24px}.welcome-tool{padding:12px 10px;border-radius:12px;min-width:0}.welcome-tool .tool-glyph{width:24px;height:24px;font-size:14px;margin-bottom:10px}.welcome-tool b{font-size:11px;white-space:nowrap}.welcome-tool small{font-size:8px;line-height:1.7;white-space:normal}.starter-list button{font-size:11px;line-height:1.8;padding:13px 0;gap:10px}.suggested-heading{font-size:9px}.suggested-heading button{font-size:9px}.composer-area{padding:8px 15px max(12px,env(safe-area-inset-bottom))}.composer{border-radius:18px;padding:12px 13px 9px;min-height:105px;gap:10px}.composer textarea{font-size:14px;min-height:38px}.composer-tools{gap:14px;height:27px}.composer-tools .icon-button{width:24px}.composer-note{padding:8px 3px 0;min-height:0;font-size:8px}.composer-note #input-hint{display:none}.composer-tool-label{font-size:9px}.pending-attachments{padding:5px 15px}.message{margin:18px 0 22px}.user-bubble{font-size:13px}.answer-content{font-size:13px;line-height:2}.answer-label{font-size:10px}.answer-card{padding:8px 0}.answer-label:before{width:23px;height:23px}.message-actions{gap:15px}.follow-ups button{font-size:10px}.app-layout .companion{display:none}.app-layout .companion.open{display:flex;position:fixed;right:0;top:0;bottom:0;width:min(310px,90vw);z-index:25;margin:12px;background:#f7f9fd;box-shadow:0 12px 80px #40577920}.companion-scrim:not([hidden]){display:block;position:fixed;inset:0;background:#25385e33;z-index:24}.companion-portrait{height:260px;min-height:200px}.companion-intro h2{font-size:22px}.companion-intro p{font-size:12px}.companion-heading{font-size:11px}.companion-prompts>button{font-size:12px}.companion-bottom{font-size:10px}.workspace{padding:27px 21px}.workspace h1{font-size:24px}.workspace-lead{font-size:11px}.tool-grid{grid-template-columns:1fr;gap:10px}.tool-card{min-height:100px;padding:17px}.tool-card strong{font-size:14px}.tool-card p{font-size:11px}.tool-card em{font-size:9px;margin-top:7px}.form-panel{padding:18px}.form-row{grid-template-columns:1fr;gap:0}.work-tabs{gap:4px;justify-content:space-between}.work-tabs button{padding:8px 10px;font-size:11px}.teacher-head{display:block}.teacher-head>button{margin-bottom:18px}.card-record,.review-item,.strategy-record{padding:17px}.form-actions{gap:8px}.form-actions button{font-size:11px;padding:9px 12px}.compact-flow{font-size:9px;padding:12px 10px;flex-wrap:wrap;gap:8px}.compact-flow b{font-size:9px}.local-note{font-size:9px}.record-meta{font-size:9px}.workspace textarea,.workspace input[type=text],.workspace select{font-size:12px}.task-dialog textarea{font-size:13px}.voice-stage{padding-top:8px}dialog{padding:22px 19px;border-radius:17px}.dialog-head h2{font-size:16px}.consent-line{font-size:9px}}
@media(max-height:780px) and (min-width:701px){.companion-portrait{height:210px;min-height:160px}.companion-intro p{margin:12px 0}.companion-divider{margin:17px 20px}.companion-bottom{padding:16px 10px}.companion-prompts>button{padding:10px 0}.welcome{padding-top:25px}.welcome-logo{width:54px;height:54px;margin-bottom:18px}.welcome-tagline{margin-bottom:20px}.welcome-tools{margin-bottom:20px}.welcome-tool{padding:13px}.welcome-tool .tool-glyph{margin-bottom:8px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}.welcome-tool:hover{transform:none}}
@media(prefers-reduced-transparency:reduce){.main-column,.companion{background:#fcfcfd}dialog::backdrop{backdrop-filter:none;background:#5a637d80}}
.task-dialog input[type=checkbox],.consent-line input[type=checkbox]{width:14px;height:14px;padding:0;flex:0 0 14px;accent-color:#4e6ef2}.consent-line{align-items:flex-start;white-space:normal}
.mobile-companion{width:29px;height:29px;padding:0;border-radius:50%;overflow:hidden;border:1px solid #e0e5ef;background:#f2f5fa;flex-shrink:0}.mobile-companion img{width:100%;height:100%;object-fit:cover;object-position:top}
@media(max-width:700px){.sidebar:not(.open){visibility:hidden}.sidebar.open{visibility:visible}}