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rgba(228,230,235,.5)}.message--user .message-avatar{background:var(--tke-purple);color:#fff;border-color:transparent}.message-avatar{display:flex;width:30px;height:30px;align-items:center;justify-content:center;overflow:hidden;margin-top:2px;border:1px solid rgba(22,24,29,.08);border-radius:8px;background:#fff;color:var(--tke-purple);padding:3px}.message-avatar img{display:block;width:100%;height:100%;object-fit:contain}.message-card{min-width:0;width:100%}.jump-latest-button{position:absolute;right:max(18px,calc((100% - var(--rail-width)) / 2));bottom:92px;z-index:5;display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(130,32,158,.18);background:#fffffff5;box-shadow:0 12px 30px 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h2{font-size:18px}.markdown h3{font-size:16px}.markdown h4{font-size:15px}.markdown p{margin:0 0 12px}.markdown ul,.markdown ol{margin:6px 0 12px;padding-left:22px}.markdown li{margin:4px 0}.markdown blockquote{margin:12px 0;border-left:3px solid var(--tke-purple);background:var(--tke-purple-50);color:var(--ink);padding:6px 12px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.markdown a{color:var(--tke-purple);font-weight:600;text-decoration:underline;text-decoration-color:#82209e66;text-underline-offset:3px}.markdown code{border:1px solid var(--line);border-radius:5px;background:var(--surface-alt);padding:1px 6px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.92em}.markdown pre{max-width:100%;overflow-x:auto;border:1px solid #23272f;border-radius:var(--radius);background:#14171c;color:#f1f3f7;padding:14px 16px;margin:12px 0}.markdown pre code{border:0;background:transparent;color:inherit;padding:0}.markdown table{display:table;width:100%;max-width:100%;border-collapse:separate;border-spacing:0;margin:12px 0;font-size:14px}.markdown th,.markdown td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top;overflow-wrap:break-word}.markdown th:first-child,.markdown td:first-child{border-left:1px solid var(--line)}.markdown th{border-top:1px solid var(--line);background:var(--surface-alt);font-weight:700}.markdown img{max-width:min(100%,680px);height:auto;border:1px solid var(--line);border-radius:var(--radius)}.inline-error{display:flex;gap:8px;margin-top:10px;border:1px solid #fbc6cf;border-left:3px solid var(--danger);border-radius:var(--radius-sm);background:var(--danger-soft);color:#7a0a1f;padding:10px 12px;font-size:14px}.streaming-cursor{display:inline-block;width:7px;height:1em;margin-left:2px;vertical-align:-.15em;background:var(--tke-purple);border-radius:1px;animation:streaming-blink 1s steps(1) infinite}.streaming-cursor--status{height:1.15em;margin-left:1px}.streaming-status{display:inline-flex;align-items:center;min-height:28px;gap:4px;color:var(--ink-muted);font-size:14px;font-weight:600}@keyframes streaming-blink{50%{opacity:0}}.source-section{margin-top:18px}.source-summary{display:inline-flex;align-items:center;min-height:30px;gap:7px;color:var(--ink-muted);cursor:pointer;list-style:none;user-select:none}.source-summary::-webkit-details-marker{display:none}.source-summary:focus-visible{border-radius:var(--radius-sm);outline:2px solid rgba(130,32,158,.32);outline-offset:3px}.source-summary-title{color:var(--ink-muted);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.source-summary-count{display:grid;min-width:20px;height:20px;place-items:center;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface-alt);color:var(--ink-soft);font-size:11px;font-weight:700;line-height:1}.source-summary-icon{color:var(--ink-soft);transition:transform var(--t-base)}.source-section[open] .source-summary{margin-bottom:8px}.source-section[open] .source-summary-icon{transform:rotate(180deg)}.source-image-preview{display:block;width:min(100%,680px);margin:0 0 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-alt);overflow:hidden}.source-image-preview:hover{border-color:var(--tke-purple);text-decoration:none}.source-image-preview img{display:block;width:100%;max-height:420px;object-fit:contain;background:#fff}.source-list{display:grid;gap:6px}.source-card{display:grid;grid-template-columns:22px minmax(0,1fr) 16px;align-items:center;gap:10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);padding:9px 10px;text-decoration:none;transition:border-color var(--t-base),background var(--t-base)}.source-card:hover{border-color:var(--tke-purple);background:var(--tke-purple-50);text-decoration:none}.source-card svg{color:var(--ink-soft)}.source-card:hover svg{color:var(--tke-purple)}.source-index{display:grid;width:22px;height:22px;place-items:center;border-radius:var(--radius-pill);background:var(--tke-purple);color:#fff;font-size:11.5px;font-weight:700}.source-body{display:flex;flex-direction:column;min-width:0;gap:1px}.source-title{overflow:hidden;color:var(--tke-purple);font-size:13.5px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.source-meta{overflow:hidden;color:var(--ink-muted);font-size:11.5px;text-overflow:ellipsis;white-space:nowrap}.composer{display:flex;justify-content:center;border-top:1px solid var(--line);background:var(--surface);padding:14px 18px 18px}.composer-shell{display:grid;grid-template-columns:minmax(0,1fr) 38px;align-items:end;gap:6px;width:min(800px,100%);min-height:56px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:#fff;padding:8px 8px 8px 6px;box-shadow:var(--shadow-soft);transition:border-color var(--t-base),box-shadow var(--t-base)}.composer-shell:focus-within{border-color:var(--tke-purple);box-shadow:0 0 0 3px #82209e1f,var(--shadow-soft)}.composer textarea{width:100%;min-width:0;min-height:40px;max-height:200px;resize:none;border:0;outline:none;background:transparent;color:var(--ink);padding:8px 4px;line-height:1.5;overflow-y:auto}.composer textarea::placeholder{color:var(--ink-soft)}.composer textarea:disabled{cursor:not-allowed;opacity:.5}.composer-submit{width:36px;height:36px;align-self:end;margin:0;border-radius:10px}.composer-hint{margin-top:8px;color:var(--ink-soft);font-size:11.5px;text-align:center}.composer-hint kbd{display:inline-block;margin:0 2px;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;background:var(--surface-alt);padding:0 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14px;font-size:14px}.button--icon{width:38px;height:38px;padding:0;border-radius:8px}@media(max-width:960px){.portal-shell{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;z-index:40;width:min(86vw,var(--sidebar-width));transform:translate(-100%);visibility:hidden;pointer-events:none;box-shadow:12px 0 32px #16181d2e;transition:transform var(--t-normal),visibility 0s linear var(--t-normal)}.sidebar--open{transform:translate(0);visibility:visible;pointer-events:auto;transition:transform var(--t-normal)}.sidebar-backdrop{position:fixed;inset:0;z-index:30;display:block;border:0;background:#16181d47;cursor:pointer}.chat-header{padding:0 14px}.mobile-menu-button{display:inline-flex;width:36px;height:36px;flex-shrink:0;align-items:center;justify-content:center;border:0;border-radius:8px;background:transparent;color:var(--ink);cursor:pointer}.mobile-menu-button:hover{background:#16181d0f}.header-logo{width:42px;height:32px}.header-logo 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