.ei-container { max-width: 600px; margin: 0 auto; padding: 20px; background: #fff; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); border:1px solid #eaeaea;}
.ei-step { padding: 15px; }
.ei-step h3 { border-bottom: 2px solid #0073aa; padding-bottom: 10px; margin-bottom: 20px; color: #333; }
.ei-form-group { margin-bottom: 15px; }
.ei-form-group label { display: block; margin-bottom: 5px; font-weight: bold; color:#555;}
.ei-form-group input, .ei-form-group textarea { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing:border-box;}
.ei-btn { display: inline-block; padding: 10px 20px; background: #0073aa; color: #fff; border: none; border-radius: 4px; cursor: pointer; text-decoration: none; text-align:center;}
.ei-btn:hover { background: #005177; }
.ei-messengers { display: flex; gap: 10px; margin-top: 15px; }
.ei-wa { background: #25D366; } .ei-wa:hover { background: #128C7E; }
.ei-ru { background: #E75424; } .ei-ru:hover { background: #c24017; }
.ei-bl { background: #2F80ED; } .ei-bl:hover { background: #1c62be; }
.ei-alert { padding: 15px; border-radius: 4px; margin-bottom: 20px; }
.ei-alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.ei-alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.ei-error { color: red; margin-top: 10px; font-size: 13px; }
.ei-loading { opacity: 0.6; pointer-events: none; }