body {
    background-color: #121212; /* 深色背景 */
    color: #e0e0e0; /* 淺色文字 */
}

.container {
    background-color: #1e1e1e; /* 容器背景略深 */
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

h1, h2, h3, h4, h5, h6 {
    color: #ffffff; /* 標題使用白色 */
}

.text-primary {
    color: #00bcd4 !important; /* 主色調：青色 */
}

.text-info {
    color: #4caf50 !important; /* 資訊色調：綠色 */
}

.lead {
    color: #bdbdbd;
}

.card {
    background-color: #2c2c2c; /* 卡片背景 */
    border: 1px solid #424242;
    color: #e0e0e0;
}

.card-title {
    font-weight: bold;
}

.screenshot-block {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #242424;
    border-radius: 8px;
    border: 1px solid #333;
}

.screenshot-block img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border: 5px solid #424242; /* 圖片邊框 */
}

.footer {
    background-color: #121212;
    padding: 15px 0;
}

/* 語言切換連結樣式 */
.lang-switch {
    text-align: right;
    margin-bottom: 20px;
}

.lang-switch a {
    color: #00bcd4;
    text-decoration: none;
    padding: 5px 10px;
    border: 1px solid #00bcd4;
    border-radius: 5px;
    margin-left: 10px;
    transition: background-color 0.3s, color 0.3s;
}

.lang-switch a:hover {
    background-color: #00bcd4;
    color: #121212;
}

.lang-switch .active {
    background-color: #00bcd4;
    color: #121212;
    font-weight: bold;
}