.expai-app {--e-ink:#192534;--e-muted:#667484;--e-accent:#486f8d;--e-border:#e3e9eb;--e-surface:#f6f8f7;--e-dark:#172c40;color:var(--e-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;max-width:1180px;margin:24px auto 36px;font-size:15px;line-height:1.5}
.expai-app *{box-sizing:border-box}
.expai-panel{background:#fff;border:1px solid var(--e-border);border-radius:24px;box-shadow:0 18px 60px rgba(20,38,50,.08);display:grid;grid-template-columns:minmax(230px,32%) minmax(0,1fr);min-height:700px;overflow:hidden}
.expai-aside{background:#edf1ed;padding:40px 32px 26px;display:flex;flex-direction:column;align-items:flex-start;border-right:1px solid var(--e-border)}
.expai-symbol,.expai-welcome-icon{width:48px;height:48px;display:grid;place-items:center;font-weight:700;font-family:Georgia,serif;font-size:25px;background:var(--e-dark);color:#e9f2f3;border-radius:14px}
.expai-brand{font-weight:750;font-size:17px;letter-spacing:.1em;margin-top:24px}
.expai-brand span{font-weight:400;color:var(--e-accent)}
.expai-kicker{font-size:10px;letter-spacing:.17em;color:var(--e-muted);margin:6px 0 40px}
.expai-aside-heading{font-size:24px;line-height:1.2;letter-spacing:-.04em;margin:0 0 14px;font-weight:600}
.expai-aside-desc{font-size:14px;line-height:1.75;color:var(--e-muted);margin:0 0 35px}
.expai-chips{display:flex;flex-direction:column;gap:10px;width:100%}
.expai-chips button{background:rgba(255,255,255,.68);color:#28475c;border:1px solid rgba(90,117,124,.15);padding:12px 14px;border-radius:12px;text-align:left;font-size:13px;font-weight:500;line-height:1.4;cursor:pointer;transition:background .2s,border-color .2s}
.expai-chips button:hover{background:#fff;border-color:#91a8b4}
.expai-aside-bottom{margin-top:auto;padding-top:40px;color:var(--e-muted);font-size:11px}
.expai-dot{width:7px;height:7px;display:inline-block;vertical-align:middle;background:#689b89;border-radius:50%;margin-right:6px}
.expai-chat{min-width:0;display:flex;flex-direction:column;background:#fff}
.expai-header{height:88px;border-bottom:1px solid var(--e-border);padding:20px 28px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.expai-header strong{font-weight:650;font-size:17px;display:block}
.expai-header small{font-size:11px;color:var(--e-muted);display:block;margin-top:3px}
.expai-pill{color:#647385;background:#f0f3f4;border:1px solid #e4e9ea;border-radius:25px;font-size:11px;font-weight:600;max-width:50%;text-overflow:ellipsis;overflow:hidden;white-space:nowrap;padding:7px 10px}
.expai-pill.is-ready{color:#2c7656;background:#f0f8f3;border-color:#d5e9dc}
.expai-conversation{flex:1;padding:30px 28px;overflow-y:auto;min-height:320px;max-height:550px;display:flex;flex-direction:column;gap:17px;scrollbar-width:thin}
.expai-welcome{margin:auto;max-width:390px;text-align:center;color:#384b58;padding:30px 0}
.expai-welcome-icon{margin:0 auto 18px;width:58px;height:58px;font-size:31px}
.expai-welcome h3{font-weight:650;font-size:21px;margin:0 0 9px;letter-spacing:-.025em}
.expai-welcome p{font-size:14px;color:var(--e-muted);line-height:1.65;margin:0}
.expai-message{max-width:89%;font-size:14px;line-height:1.65;word-break:break-word}
.expai-message.user{align-self:flex-end;background:#e8eff3;color:#1c3a4b;padding:12px 16px;border-radius:16px 16px 4px 16px}
.expai-message.assistant{align-self:flex-start;display:flex;gap:11px;max-width:96%}
.expai-bubble-mark{flex:none;background:#e5eded;color:#395969;width:29px;height:29px;border-radius:9px;display:grid;place-items:center;font-size:15px;font-family:Georgia,serif;font-weight:bold}
.expai-message-text{padding:3px 0;white-space:pre-wrap;min-width:0}
.expai-sources{color:#5d7282;font-size:11px;margin-top:9px;padding-top:6px;border-top:1px solid var(--e-border)}
.expai-error{font-size:12px;color:#a43e45;margin-top:4px;line-height:1.55}
.expai-bottom{padding:18px 28px 24px;border-top:1px solid var(--e-border)}
.expai-load-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.expai-load{font-size:12px;font-weight:600;color:#fff;background:var(--e-dark);border:0;border-radius:10px;padding:11px 15px;cursor:pointer}
.expai-load:hover{background:#234864}
.expai-load:disabled{opacity:.55;cursor:wait}
.expai-progress{font-size:11px;color:var(--e-muted)}
.expai-form{border:1px solid #d7e0e4;border-radius:14px;display:flex;align-items:center;gap:10px;padding:8px 9px 8px 15px;background:#fff}
.expai-form:focus-within{border-color:#8da6b4;box-shadow:0 0 0 3px rgba(92,140,168,.1)}
.expai-form textarea{width:100%;min-width:0;flex:1;border:0!important;background:transparent!important;color:var(--e-ink)!important;box-shadow:none!important;resize:none;outline:none!important;min-height:54px;max-height:112px;line-height:1.5;padding:9px 0;font:inherit;font-size:14px}
.expai-form textarea:disabled{opacity:.58}
.expai-send{border:0;border-radius:10px;width:38px;height:38px;background:var(--e-dark);color:#fff;font-weight:700;font-size:22px;cursor:pointer;flex:none}
.expai-send:disabled{opacity:.3;cursor:not-allowed}
.expai-disclaimer{font-size:10px;color:#73828b;line-height:1.5;margin:10px 2px 0}
.expai-locked{border:1px solid #dce6e5;background:#f8fbf9;border-radius:16px;padding:28px;max-width:650px;margin:40px auto;font-size:14px}
.expai-locked p{margin:8px 0}
.expai-locked a{font-weight:600}
@media(max-width:790px){.expai-app{margin:0 auto 16px}.expai-panel{display:flex;flex-direction:column;min-height:78vh;border-radius:12px}.expai-aside{padding:22px 20px 18px;border-right:0;border-bottom:1px solid var(--e-border)}.expai-symbol{width:40px;height:40px;font-size:22px}.expai-brand{margin-top:8px}.expai-kicker{margin:4px 0 9px}.expai-aside-heading{font-size:19px;margin-bottom:5px}.expai-aside-desc,.expai-aside-bottom{display:none}.expai-chips{flex-direction:row;overflow-x:auto;gap:6px}.expai-chips button{min-width:150px;font-size:11px;padding:9px}.expai-header{height:70px;padding:14px 17px}.expai-conversation{min-height:270px;max-height:none;padding:20px 16px;flex:1}.expai-bottom{padding:12px 14px 18px}.expai-welcome{padding:20px 0}}
@media(prefers-reduced-motion:reduce){.expai-chips button{transition:none}}

.expai-header-actions{display:flex;align-items:center;gap:10px}.expai-new{font-size:11px;padding:7px 10px;border:1px solid #dce5e9;border-radius:9px;background:#fff;color:#315467;cursor:pointer;white-space:nowrap}.expai-new:hover{background:#f0f4f5}.expai-new:focus-visible,.expai-load:focus-visible,.expai-send:focus-visible,.expai-chips button:focus-visible{outline:2px solid #567e93;outline-offset:2px}@media(max-width:500px){.expai-new{padding:6px 7px;font-size:10px}.expai-header-actions{gap:5px}.expai-pill{font-size:9px;padding:6px 7px}}