.fna-ai-box{max-width:900px;margin:30px auto;padding:40px 25px;background:#fff;border-radius:20px;box-shadow:0 5px 25px rgba(0,0,0,.12);font-family:Arial,sans-serif;text-align:center;box-sizing:border-box}.fna-ai-title{font-size:32px;font-weight:700;color:#333}.fna-ai-subtitle{font-size:18px;color:#666;margin-top:8px}.fna-ai-welcome{margin:28px auto 20px;max-width:700px;padding:22px;background:#f5f5f5;border-radius:15px;text-align:left;color:#555}.fna-ai-welcome p{margin:8px 0 0}.fna-ai-quick{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:20px 0}.fna-ai-quick button{padding:12px 18px;border:0;border-radius:25px;background:#eee;cursor:pointer;font-size:15px}.fna-ai-messages{max-width:700px;max-height:360px;overflow-y:auto;margin:15px auto;text-align:left}.fna-ai-message{padding:13px 16px;border-radius:16px;margin:9px 0;white-space:pre-wrap;line-height:1.45;word-break:break-word}.fna-ai-message.user{background:#eee;margin-left:12%}.fna-ai-message.bot{background:#f5f5f5;margin-right:12%}.fna-ai-form{display:flex;max-width:700px;margin:15px auto 8px}.fna-ai-form input{flex:1;min-width:0;padding:16px;border:1px solid #ccc;border-radius:30px 0 0 30px;font-size:16px;box-sizing:border-box}.fna-ai-form button{width:65px;border:0;border-radius:0 30px 30px 0;background:#333;color:#fff;font-size:20px;cursor:pointer}.fna-ai-note{font-size:12px;color:#888;margin-top:12px}@media(max-width:600px){.fna-ai-box{margin:15px 5px;padding:28px 14px}.fna-ai-title{font-size:27px}.fna-ai-quick button{font-size:14px;padding:10px 14px}.fna-ai-message.user{margin-left:5%}.fna-ai-message.bot{margin-right:5%}}