:root{--hlb-primary:#1f6ca9;--hlb-accent:#c1c835;--hlb-bg:#fff;--hlb-text:#111;--hlb-shadow:0 10px 30px rgba(0,0,0,.12);--hlb-radius:20px;--hlb-font:'Frank Ruhl Libre',serif}.hlb-fab{position:fixed;right:20px;bottom:24px;z-index:999999;background:var(--hlb-primary);color:#fff;border-radius:999px;padding:14px 18px;box-shadow:var(--hlb-shadow);display:flex;align-items:center;gap:10px;font-family:var(--hlb-font);cursor:pointer}.hlb-fab .hlb-fab-text{font-size:16px;font-weight:700}.hlb-fab .hlb-pulse{width:10px;height:10px;border-radius:50%;background:var(--hlb-accent);animation:hlb-pulse 1.8s infinite}@keyframes hlb-pulse{0%{transform:scale(.9);opacity:.8}50%{transform:scale(1.1);opacity:1}100%{transform:scale(.9);opacity:.8}}.hlb-modal{position:fixed;inset:0;background:rgb(0 0 0 / .28);z-index:999998;display:none}.hlb-window{position:absolute;right:20px;bottom:90px;width:min(420px,calc(100% - 40px));background:var(--hlb-bg);border-radius:var(--hlb-radius);box-shadow:var(--hlb-shadow);overflow:hidden;font-family:var(--hlb-font);outline:none}.hlb-header{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;background:#f7f9fc;border-bottom:1px solid #eef2f7}.hlb-brand{display:flex;align-items:center;gap:10px}.hlb-title{font-weight:800;font-size:16px}.hlb-close{background:none;border:0;font-size:22px;line-height:1;cursor:pointer;padding:6px 10px}.hlb-body{display:flex;flex-direction:column;height:420px}.hlb-messages{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:12px}.hlb-msg{display:flex;gap:10px;align-items:flex-start}.hlb-msg .bubble{max-width:74%;padding:10px 12px;border-radius:14px;background:#f1f5f9;word-wrap:break-word}.hlb-msg.user{justify-content:flex-end}.hlb-msg.user .bubble{background:#e6f2ff}.hlb-avatar{width:56px;height:56px;border-radius:50%;flex:0 0 56px;background:#ddd;overflow:hidden;box-shadow:0 2px 8px rgb(0 0 0 / .08)}.hlb-avatar img{width:100%;height:100%;object-fit:cover}.hlb-avatar-lg{width:44px;height:44px;border-radius:50%;flex:0 0 44px;overflow:hidden;background:#ddd}.hlb-input{padding:12px;display:flex;flex-direction:column;gap:8px;border-top:1px solid #eef2f7}.hlb-input-row{display:flex;gap:8px}.hlb-input input[type="text"]{flex:1;border:1px solid #e2e8f0;border-radius:12px;padding:10px 12px;font-family:var(--hlb-font)}.hlb-send{background:var(--hlb-primary);color:#fff;border:0;padding:10px 14px;border-radius:12px;cursor:pointer;font-family:var(--hlb-font);font-weight:700}.hlb-typing{display:flex;gap:4px;padding:0 6px 6px}.hlb-typing .dot{width:6px;height:6px;border-radius:50%;background:#cbd5e1;animation:bounce 1s infinite alternate}.hlb-typing .dot:nth-child(2){animation-delay:.15s}.hlb-typing .dot:nth-child(3){animation-delay:.3s}@keyframes bounce{from{transform:translateY(0)}to{transform:translateY(-3px)}}