/* 表單樣式 */

.contact-form form {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 119, 204, 0.2);
}

/* 表單驗證錯誤樣式 */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--danger);
    background-color: rgba(229, 62, 62, 0.05);
}

.error-message {
    color: var(--danger);
    font-size: 14px;
    margin-top: 5px;
    display: block;
    font-weight: 500;
}

/* 表單提交成功訊息 */
#form-response {
    margin-top: 20px;
    display: none;
}

.success-message {
    background-color: rgba(72, 187, 120, 0.1);
    border: 1px solid rgba(72, 187, 120, 0.5);
    color: var(--success);
    padding: 10px 15px;
    border-radius: 4px;
    font-weight: 500;
}

/* 表單提交失敗訊息 */
#form-response .error-message {
    background-color: rgba(229, 62, 62, 0.1);
    border: 1px solid rgba(229, 62, 62, 0.5);
    padding: 10px 15px;
    border-radius: 4px;
}

/* 提交按鈕樣式 */
.contact-form button {
    width: 100%;
    margin-top: 10px;
}

.contact-form button:disabled {
    background-color: var(--gray);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 標記必填欄位 */
.required-field::after {
    content: '*';
    color: var(--danger);
    margin-left: 4px;
}

/* 輸入框懸停效果 */
.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: rgba(0, 119, 204, 0.5);
}

/* 動畫效果 */
@keyframes shake {
    0%, 100% {transform: translateX(0);}
    10%, 30%, 50%, 70%, 90% {transform: translateX(-5px);}
    20%, 40%, 60%, 80% {transform: translateX(5px);}
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    animation: shake 0.5s;
}