.riparv-contact-form-wrap { max-width: 640px; margin: 18px auto; font-family: Arial, Helvetica, sans-serif; }
.riparv-contact-form .riparv-cf-field { margin-bottom: 12px; }
.riparv-contact-form input[type="text"], .riparv-contact-form input[type="email"], .riparv-contact-form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    box-sizing: border-box;
}
.riparv-contact-form textarea { resize: vertical; min-height: 120px; }
.riparv-cf-submit {
    background: #0073aa;
    color: #fff;
    padding: 10px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}
.riparv-cf-error { background: #ffe9e9; color: #a00; padding: 10px; border-radius: 6px; margin-bottom: 12px; }
.riparv-cf-success { background: #e9fff0; color: #0a6; padding: 10px; border-radius: 6px; margin-bottom: 12px; }
.required { color: #d00; }