.echat-fab{z-index:1000;background:var(--blue-900);color:#fff;cursor:pointer;font-family:var(--font-body);border:none;border-radius:980px;align-items:center;gap:10px;padding:14px 22px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;bottom:24px;right:24px;box-shadow:0 4px 20px #002b5c4d}.echat-fab:hover{background:var(--blue-700);transform:translateY(-2px);box-shadow:0 8px 32px #002b5c66}.echat-fab svg{flex-shrink:0}.echat-fab-label{white-space:nowrap;font-size:13px;font-weight:600}.echat-panel{z-index:1000;background:var(--white);border:1px solid var(--border);border-radius:16px;flex-direction:column;width:380px;height:520px;animation:.3s cubic-bezier(.4,0,.2,1) echat-slide-up;display:flex;position:fixed;bottom:24px;right:24px;overflow:hidden;box-shadow:0 12px 48px #002b5c26}@keyframes echat-slide-up{0%{opacity:0;transform:translateY(16px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.echat-header{background:var(--blue-900);color:#fff;flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 18px;display:flex}.echat-header-info{flex-direction:column;display:flex}.echat-header-title{font-family:var(--font-body);font-size:15px;font-weight:700}.echat-header-sub{font-family:var(--font-body);color:#fff9;font-size:12px}.echat-close{cursor:pointer;color:#fff;background:#ffffff1a;border:none;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;transition:background .2s;display:flex}.echat-close:hover{background:#fff3}.echat-messages{background:var(--surface);flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.echat-welcome{background:var(--white);border:1px solid var(--border);font-family:var(--font-body);color:var(--text-500);border-radius:12px;padding:16px;font-size:14px;line-height:1.5}.echat-welcome p{margin:0 0 8px}.echat-welcome p:last-child{margin:0}.echat-welcome strong{color:var(--blue-700)}.echat-msg{display:flex}.echat-msg--user{justify-content:flex-end}.echat-msg--assistant{justify-content:flex-start}.echat-msg-bubble{max-width:85%;font-family:var(--font-body);word-wrap:break-word;border-radius:12px;padding:10px 14px;font-size:14px;line-height:1.5}.echat-msg--user .echat-msg-bubble{background:var(--blue-700);color:#fff;border-bottom-right-radius:4px}.echat-msg--assistant .echat-msg-bubble{background:var(--white);color:var(--text-700);border:1px solid var(--border);border-bottom-left-radius:4px}.echat-msg--assistant .echat-msg-bubble a{color:#007c91;font-weight:500;text-decoration:underline;transition:color .15s}.echat-msg--assistant .echat-msg-bubble a:hover{color:#00b4d8}.echat-msg--assistant .echat-msg-bubble li{margin-bottom:4px;margin-left:16px;list-style:outside}.echat-msg--assistant .echat-msg-bubble li.echat-li-num{list-style:decimal}.echat-msg--assistant .echat-msg-bubble strong{font-weight:600}.echat-msg--assistant .echat-msg-bubble em{font-style:italic}.echat-msg-loading{gap:4px;padding:14px 18px;display:flex}.echat-msg-loading span{background:var(--text-300);border-radius:50%;width:7px;height:7px;animation:1.4s ease-in-out infinite echat-dot}.echat-msg-loading span:nth-child(2){animation-delay:.2s}.echat-msg-loading span:nth-child(3){animation-delay:.4s}@keyframes echat-dot{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.echat-input-wrap{border-top:1px solid var(--border);background:var(--white);flex-shrink:0;gap:8px;padding:12px 16px;display:flex}.echat-input{border:1.5px solid var(--border);font-family:var(--font-body);color:var(--text-900);border-radius:980px;outline:none;flex:1;padding:10px 14px;font-size:14px;transition:border-color .2s}.echat-input::placeholder{color:var(--text-300)}.echat-input:focus{border-color:var(--blue-500)}.echat-send{background:var(--blue-700);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.echat-send:hover:not(:disabled){background:var(--blue-900)}.echat-send:disabled{opacity:.4;cursor:not-allowed}.echat-limit{border-top:1px solid var(--border);background:var(--surface);font-family:var(--font-body);color:var(--text-500);text-align:center;flex-shrink:0;padding:14px 18px;font-size:13px;line-height:1.5}.echat-limit a{color:var(--blue-700);font-weight:600;text-decoration:none}.echat-limit a:hover{text-decoration:underline}@media (max-width:480px){.echat-fab-label{display:none}.echat-fab{border-radius:50%;justify-content:center;width:56px;height:56px;padding:14px}.echat-panel{border-radius:0;width:100%;height:100%;bottom:0;right:0}}