.amb-dexi-bubble{position:fixed;right:18px;bottom:18px;z-index:99999;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.amb-dexi-btn{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:999px;border:1px solid rgba(0,0,0,.15);background:#fff;box-shadow:0 8px 28px rgba(0,0,0,.12);cursor:pointer;font-weight:900}
.amb-dexi-panel{position:fixed;right:18px;bottom:74px;width:min(420px,calc(100vw - 36px));max-height:min(560px,calc(100vh - 120px));background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:18px;box-shadow:0 18px 60px rgba(0,0,0,.2);display:none;overflow:hidden;z-index:99999}
.amb-dexi-panel.open{display:flex;flex-direction:column}
.amb-dexi-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid rgba(0,0,0,.08)}
.amb-dexi-title{font-weight:900}
.amb-dexi-close{border:none;background:transparent;font-size:18px;cursor:pointer;opacity:.7}
.amb-dexi-body{padding:12px 14px;overflow:auto;display:flex;flex-direction:column;gap:10px}
.amb-dexi-msg{padding:10px 12px;border-radius:14px;border:1px solid rgba(0,0,0,.08);background:rgba(0,0,0,.02);line-height:1.35;white-space:pre-wrap}
.amb-dexi-msg.user{background:#fff}
.amb-dexi-quick{display:flex;flex-wrap:wrap;gap:8px}
.amb-dexi-chip{padding:8px 10px;border-radius:999px;border:1px solid rgba(0,0,0,.12);background:#fff;cursor:pointer;font-weight:700;font-size:12px}
.amb-dexi-form{display:flex;gap:8px;padding:12px 14px;border-top:1px solid rgba(0,0,0,.08)}
.amb-dexi-input{flex:1;padding:10px 12px;border-radius:12px;border:1px solid rgba(0,0,0,.15)}
.amb-dexi-send{padding:10px 12px;border-radius:12px;border:1px solid rgba(0,0,0,.15);background:#fff;font-weight:900;cursor:pointer}
.amb-dexi-footnote{font-size:11px;opacity:.7}