.settings-container {
    position: fixed; /* 相对于屏幕固定 */
    top: 10px;
    right: 10px;
    z-index: 1001;
}

.settings-icon {
    cursor: pointer;
    font-size: 24px;
    background-color: #f0f0f0;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s;
}

.settings-dropdown {
    display: none;
    position: absolute; /* 相对于图标位置 */
    top: 45px;
    right: 0;
    background-color: #fff;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    width: 150px;
}

/* 显示菜单 */
.settings-container.active .settings-dropdown {
    display: block;
    flex-direction: column;
}

/**
 * 暗黑模式
 */
.night-mode .settings-icon {
    background-color: #333;
    color: #f0f0f0;
}

.night-mode .settings-dropdown {
    background-color: #2a2a2a;
}