/* 这个是全屏、自动旋转、搜索 */
/* 功能区容器 - 全透明 */
#function-area {
    position: absolute;
    top: 30px;
    right: 30px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 0;
    background: transparent;
}

/* 功能按钮样式 - 小尺寸 */
.function-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #0000004D;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
    border:none;
}

.function-btn:active {
    transform: scale(0.92);
}

/* 按钮图标样式 */
.btn-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    transition: all 0.2s ease;
}

/* 背景动画 */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    #function-area {
        right: 15px;
        top: 20px;
        gap: 15px;
    }

    .function-btn {
        width: 44px;
        height: 44px;
    }

    .btn-icon {
        width: 22px;
        height: 22px;
    }

    .title {
        font-size: 26px;
        top: 30px;
    }

    .subtitle {
        font-size: 14px;
    }
}