.ai-surface{--ai-accent:var(--color-primary-500,#1f75db);--ai-accent-soft:var(--color-primary-50,#e3eefb);--ai-accent-deep:var(--color-primary-700,#144c8e);--ai-accent-ink:var(--color-primary-600,#1a61b5);--color-secondary-500:#24a574;--color-secondary-600:#1e8860;--color-secondary-700:#176b4b;--color-default-50:#fafafa;--color-default-100:#f4f5f5;--color-default-200:#e6e6e9;--color-default-300:#d6d7d7;--color-default-400:#a4a5a6;--color-default-500:#747576;--color-default-600:#565657;--color-default-700:#424243;--color-warning-50:#fef6e7;--color-warning-100:#fde9c5;--color-warning-500:#f9b43c;--color-warning-700:#a27527;--color-danger-50:#fae6e4;--color-danger-500:#d83a25;--color-danger-600:#b2301f;--color-fg:#121620;flex:1;min-width:0;background:#fff;display:flex;flex-direction:column;height:100vh;height:var(--ai-surface-h,100dvh);overflow:hidden}.ai-surface .ai-split{flex:1;min-height:0;display:flex}.ai-surface .pdf-pane{flex:1.15;min-width:0;display:flex;flex-direction:column;background:#eef0f4}.ai-surface .pdf-pane-head{display:flex;align-items:center;justify-content:flex-end;padding:12px 18px;background:#fff;border-bottom:1px solid var(--color-default-200);flex-shrink:0}.ai-surface .pdf-host{flex:1;min-height:0}.ai-surface .chat-col{width:452px;flex-shrink:0;border-left:1px solid var(--color-default-200);display:flex;flex-direction:column;height:100%;min-width:0;background:#fff}.ai-surface .chat-head{justify-content:space-between;gap:10px;padding:14px 18px;border-bottom:1px solid var(--color-default-200)}.ai-surface .ai-ava,.ai-surface .chat-head{display:flex;align-items:center;flex-shrink:0}.ai-surface .ai-ava{width:30px;height:30px;border-radius:9px;justify-content:center;color:var(--ai-accent);background:var(--ai-accent-soft)}.ai-surface .ai-ava.lg{width:38px;height:38px;border-radius:11px}.ai-surface .chat-scroll{flex:1;overflow-y:auto;padding:18px}.ai-surface .chat-intro:not(:empty){margin-bottom:18px}.ai-surface .chat-intro>:last-child{margin-bottom:0}.ai-surface .sum-card{border:1px solid color-mix(in srgb,var(--ai-accent) 22%,#fff);background:linear-gradient(160deg,var(--ai-accent-soft) 0,#fff 60%);border-radius:12px;margin-bottom:18px;overflow:hidden}.ai-surface .sum-ico{width:26px;height:26px;border-radius:7px;background:var(--ai-accent);color:#fff;display:flex;align-items:center;justify-content:center}.ai-surface .sum-list{margin:0;padding-left:2px;list-style:none;display:flex;flex-direction:column;gap:10px}.ai-surface .sum-list li{position:relative;padding-left:22px;font-size:13.5px;line-height:1.5;color:var(--color-default-700)}.ai-surface .sum-list li:before{content:"";position:absolute;left:4px;top:7px;width:7px;height:7px;border-radius:50%;background:var(--ai-accent)}.ai-surface .spin{display:inline-flex;animation:ai-spin 1.5s linear infinite;color:var(--ai-accent)}@keyframes ai-spin{to{transform:rotate(1turn)}}.ai-surface .bubble-user{max-width:84%;background:var(--ai-accent-soft);color:var(--color-fg,#121620);padding:11px 15px;border-radius:15px 15px 4px 15px;font-size:14px;line-height:1.5}.ai-surface .bubble-ai{background:var(--color-default-50);border:1px solid var(--color-default-200);border-radius:4px 15px 15px 15px;padding:13px 15px;font-size:14px;line-height:1.6;color:var(--color-fg,#121620)}.ai-surface .bubble-ai.nf{background:color-mix(in srgb,var(--ai-accent) 10%,transparent);border-color:color-mix(in srgb,var(--ai-accent) 22%,transparent)}.ai-surface .bubble-ai .md{display:inline}.ai-surface .bubble-ai .md>:first-child{margin-top:0}.ai-surface .bubble-ai .md>:last-child{margin-bottom:0}.ai-surface .bubble-ai .md p{margin:0 0 .7em}.ai-surface .bubble-ai .md h1,.ai-surface .bubble-ai .md h2,.ai-surface .bubble-ai .md h3,.ai-surface .bubble-ai .md h4{margin:1em 0 .5em;font-weight:700;line-height:1.3}.ai-surface .bubble-ai .md h1{font-size:1.3em}.ai-surface .bubble-ai .md h2{font-size:1.18em}.ai-surface .bubble-ai .md h3{font-size:1.08em}.ai-surface .bubble-ai .md h4{font-size:1em}.ai-surface .bubble-ai .md ol,.ai-surface .bubble-ai .md ul{margin:0 0 .7em;padding-left:1.4em}.ai-surface .bubble-ai .md li{margin:.2em 0}.ai-surface .bubble-ai .md li>p{margin:0}.ai-surface .bubble-ai .md a{color:var(--ai-accent);text-decoration:underline;text-underline-offset:2px}.ai-surface .bubble-ai .md strong{font-weight:700}.ai-surface .bubble-ai .md code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--color-default-100);border:1px solid var(--color-default-200);border-radius:5px;padding:.1em .35em}.ai-surface .bubble-ai .md pre{margin:0 0 .7em;padding:11px 13px;background:var(--color-default-100);border:1px solid var(--color-default-200);border-radius:9px;overflow-x:auto}.ai-surface .bubble-ai .md pre code{background:none;border:none;border-radius:0;padding:0;font-size:.85em}.ai-surface .bubble-ai .md blockquote{margin:0 0 .7em;padding-left:.9em;border-left:3px solid var(--color-default-200);color:var(--color-default-600)}.ai-surface .bubble-ai .md table{width:100%;margin:0 0 .7em;border-collapse:collapse;font-size:.92em}.ai-surface .bubble-ai .md td,.ai-surface .bubble-ai .md th{border:1px solid var(--color-default-200);padding:6px 9px;text-align:left}.ai-surface .bubble-ai .md th{background:var(--color-default-100);font-weight:700}.ai-surface .bubble-ai .md hr{margin:.9em 0;border:none;border-top:1px solid var(--color-default-200)}.ai-surface .caret-blink{animation:ai-blink 1s steps(2) infinite;color:var(--color-default-400);font-weight:700}@keyframes ai-blink{0%,50%{opacity:1}51%,to{opacity:0}}.ai-surface .funnel-cta{margin-top:11px;padding-top:10px;border-top:1px solid var(--color-default-200)}.ai-surface .nf-notice{display:flex;align-items:center;gap:7px;margin-bottom:7px;font-size:14px;font-weight:600;color:var(--ai-accent-ink)}.ai-surface .bubble-ai.nf .funnel-cta{color:var(--ai-accent-ink);border-top-color:color-mix(in srgb,var(--ai-accent) 22%,transparent)}.ai-surface .bubble-ai.nf .funnel-cta-title{color:var(--ai-accent-ink)}.ai-surface .funnel-cta-title{display:block;margin-bottom:7px;font-size:12px;font-weight:600;color:var(--color-default-500)}.ai-surface .funnel-cta-links{display:flex;flex-wrap:wrap;gap:8px 14px}.ai-surface .composer{padding:14px 16px 12px;border-top:1px solid var(--color-default-200);flex-shrink:0}.ai-surface .trust{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--color-default-400);margin-top:9px;padding-left:3px}@media (max-width:900px){.ai-surface .chat-col{width:100%}.ai-surface .pdf-pane{display:none}}