body.qa-clean {
    background: #f7eded !important;
    color: #212529;
}

/* QA 卡片 */
.qa-item {
    background: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
}

    .qa-item:hover {
        box-shadow: 0 0 8px rgba(0, 195, 255, 0.3);
        border-color: #0cf;
    }

    /* 標題列 */
    .qa-item .card-header {
        background-color: #f8f9fa;
        font-weight: 600;
        font-size: 1.05rem;
        color: #007bff;
        border-bottom: 1px dashed #0cf3;
        display: flex;
        align-items: center;
        padding: 0.75rem 1rem;
    }

        .qa-item .card-header::before {
            content: "💬";
            margin-right: 0.6rem;
            color: #0cf;
        }

    /* 內容區 */
    .qa-item .card-body {
        padding: 1rem;
        font-size: 1rem;
        color: #343a40;
    }

    /* 編輯用欄位 */
    .qa-item input.question,
    .qa-item textarea.answer {
        background: #ffffff;
        color: #212529;
        border: 1px solid #ced4da;
        border-radius: 6px;
        padding: 8px;
    }

        .qa-item input.question:focus,
        .qa-item textarea.answer:focus {
            box-shadow: 0 0 6px #0cf6;
            border-color: #0cf;
        }

/* 科技感按鈕 */
.btn-tech {
    background: transparent;
    border: 2px solid #0cf;
    color: #0cf;
    border-radius: 10px;
    padding: 6px 16px;
    font-weight: 600;
    transition: 0.25s ease;
    margin-left: 6px;
}

    .btn-tech:hover {
        background: #0cf;
        color: #fff;
        box-shadow: 0 0 8px #0cf8;
    }

/* 刪除按鈕 */
button.delete-qa:hover {
    background-color: #dc3545 !important;
    color: #fff !important;
    box-shadow: 0 0 6px #ff003388;
}

/* Toast 提示 */
.toast .toast-body {
    color: #007bff;
    font-weight: 600;
    background: #eaf6ff;
    border-left: 4px solid #0cf;
}