/* 动态生成元素样式 */

/* 返回顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #e74c3c;
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.back-to-top:hover {
    background-color: #c0392b;
    transform: translateY(-3px);
}

/* 响应式返回顶部按钮 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

/* 表单错误样式 */
input.error, textarea.error {
    border-color: #e74c3c !important;
}

.error-text {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 5px;
}

/* 字符数统计样式 */
.char-count {
    text-align: right;
    color: #666;
    font-size: 14px;
    margin-top: 5px;
}