.oa-chat{--oa-radius:16px;--oa-border:#e5e7eb;--oa-bg:#fff;--oa-bg-muted:#f8fafc;--oa-user:#e6f0ff;--oa-assistant:#f1f5f9;--oa-text:#111827;--oa-muted:#6b7280;max-width:760px;margin:0 auto;border:1px solid var(--oa-border);border-radius:var(--oa-radius);overflow:hidden;background:var(--oa-bg);font-family:system-ui,-apple-system,Segoe\ UI,Roboto,Ubuntu,Cantarell,Noto\ Sans,sans-serif;box-shadow:0 10px 20px rgba(0,0,0,.06)}.oa-chat *{box-sizing:border-box}.oa-chat__toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--oa-border);background:var(--oa-bg)}.oa-brand{display:flex;align-items:center;font-weight:700;color:var(--oa-text);letter-spacing:.2px}.oa-brand__dot{width:10px;height:10px;border-radius:50%;background:#10b981;display:inline-block;margin-right:10px;box-shadow:0 0 0 6px rgba(16,185,129,.12)}.oa-chat__log{height:420px;overflow:auto;padding:18px;background:var(--oa-bg-muted)}.oa-bubble{display:flex;margin:12px 0}.oa-bubble__inner{display:flex;gap:12px;align-items:flex-start;background:var(--oa-assistant);border-radius:14px;padding:12px 14px;max-width:86%}.oa-user{justify-content:flex-end}.oa-user .oa-bubble__inner{background:var(--oa-user)}.oa-avatar-wrap{position:relative;flex:0 0 32px}.oa-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;display:block;transition:transform .25s ease , box-shadow .25s ease}.oa-spinner{position:absolute;inset:-5px;display:none;border-radius:50%;border:2px solid rgba(16,185,129,.25);border-top-color:rgba(16,185,129,1);animation:oa-spin .9s linear infinite}@keyframes oa-spin{to{transform:rotate(360deg)}}.oa-assistant.thinking .oa-avatar{animation:oa-pulse 1.1s infinite;box-shadow:0 0 0 0 rgba(16,185,129,.35)}.oa-assistant.thinking .oa-spinner{display:block}@keyframes oa-pulse {0%{transform:scale(1);box-shadow:0 0 0 0 rgba(16,185,129,.35)}70%{transform:scale(1.04);box-shadow:0 0 0 10px rgba(16,185,129,0)}100%{transform:scale(1);box-shadow:0 0 0 0 rgba(16,185,129,0)}}.oa-text{white-space:pre-wrap;line-height:1.5;color:var(--oa-text);font-size:15px}.oa-typing{display:inline-block;overflow:hidden;vertical-align:baseline;width:0;margin-left:4px}.oa-typing::after{content:'...'}.oa-assistant.thinking .oa-typing{animation:oa-ellipsis 1s steps(3,end) infinite;width:3ch}@keyframes oa-ellipsis{0%{width:0ch}100%{width:3ch}}.oa-chat__form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--oa-border);background:var(--oa-bg)}.oa-input{flex:1;padding:12px 14px;border:1px solid var(--oa-border);border-radius:12px;background:#fff;color:var(--oa-text);outline:none}.oa-input:focus{border-color:#94a3b8;box-shadow:0 0 0 3px rgba(148,163,184,.25)}.oa-btn{padding:12px 18px;border:0;border-radius:12px;background:#111827;color:#fff;cursor:pointer;appearance:none;font:inherit;line-height:1;font-weight:600}.oa-btn:hover{filter:brightness(1.05)}.oa-btn--ghost{background:#fff;color:#111827;border:1px solid var(--oa-border)}.oa-btn--ghost:hover{border-color:#94a3b8}.oa-actions-bottom{display:flex;gap:8px;justify-content:flex-end;padding:0 14px 14px}.oa-chat__note{font-size:12px;color:var(--oa-muted);padding:0 14px 14px}.oa-suggest{display:flex;flex-wrap:wrap;gap:8px;padding:0 14px 10px;transition:opacity .18s ease}.oa-suggest.fade-out{opacity:0}.oa-chip{border:1px solid var(--oa-border);background:#fff;border-radius:999px;padding:8px 12px;cursor:pointer;font:inherit;color:#0f172a}.oa-chip:hover{border-color:#94a3b8}.oa-modal{position:fixed;inset:0;background:rgba(0,0,0,.35);display:none;align-items:center;justify-content:center;padding:20px;z-index:9999}.oa-modal.open{display:flex}.oa-modal__dialog{background:#fff;border-radius:14px;max-width:420px;width:100%;padding:18px;border:1px solid var(--oa-border);box-shadow:0 10px 30px rgba(0,0,0,.15)}.oa-modal__title{margin:0 0 6px 0}.oa-modal__desc{margin:0 0 10px 0;color:var(--oa-muted)}.oa-modal__actions{display:flex;gap:8px;justify-content:flex-end;margin-top:12px}.oa-modal__msg{font-size:13px;color:var(--oa-muted);margin-top:8px}