.wrapper {
        max-width: 1200px;
        margin: auto;
        background: #fff;
        overflow-y: hidden;
    }

    .intro {
        text-align: center;
        padding: 40px 20px;
        background: #fff;
    }

    .intro h1 {
        margin: 0;
        font-size: 36px;
    }

    .intro p {
        color: #555;
        margin: 15px 0 30px;
        font-size: 18px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        margin: 10px;
        padding: 14px 24px;
        font-size: 16px;
        color: #fff;
        text-decoration: none;
        border-radius: 6px;
        min-width: 220px;
    }

    .btn img {
        width: 20px;
        height: 20px;
    }

    .btn.apk {
        background: #0066CC;
    }

    .btn.play {
        background: #34A853;
    }

    .btn.ios {
        background: #000;
    }

    .intro-inner {
        display: flex;
        /* align-items: center; */
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }

    .intro-text {
        max-width: 600px;
        text-align: left;
    }

    .intro-text h1 {
        font-size: 36px;
        margin-bottom: 45px;
    }

    .intro-text p {
        font-size: 18px;
        color: #555;
        margin-bottom: 50px;
    }

    .intro-image img {
        max-width: 300px;
        width: 240px;
        height: auto;
        display: block;
    }

    .features {
        width: 100%;
    }

    .feature-item {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-evenly;
        padding: 100px 20px;
        /* 增加上下内边距，让内容呼吸 */
        box-sizing: border-box;
        gap: 40px;
        /* 图片和文字之间增加间距 */
    }

    .feature-item:nth-child(even) {
        flex-direction: row-reverse;
    }

    .feature-item img {
        max-width: 45%;
        /* 放大图片 */
        height: auto;
        border-radius: 8px;
        object-fit: cover;
        /* 保持图片完整填充框 */
    }

    .feature-item .text {
        max-width: 45%;
    }

    .feature-item h3 {
        font-size: 36px;
        margin-bottom: 20px;
    }

    .feature-item p {
        font-size: 20px;
        line-height: 1.6;
        color: #555;
    }


    .footer-d {
        text-align: center;
        padding: 20px;
        font-size: 14px;
        color: #777;
        background: #fff;
    }

    .footer-d a {
        color: #0066CC;
        text-decoration: none;
        margin: 0 8px;
    }

    .footer-d a:hover {
        text-decoration: underline;
    }

    @media (max-width: 900px) {
        .intro h1 { font-size: 28px; }
        .intro p { font-size: 16px; }
    
        .btn {
            min-width: auto;
            width: 80%;
            padding: 12px 18px;
            font-size: 14px;
        }
    
        .intro-inner {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
		
		.intro-image {
			display: none;
		}
    
        .intro-text { max-width: 100%; }
        .intro-image img { max-width: 100%; margin-top: 20px; }
    
        .feature-item {
			flex-direction: column-reverse;
			padding: 40px 20px;
			gap: 20px;
		}

		.feature-item:nth-child(even) {
			flex-direction: column-reverse;
		}
    
        .feature-item img,
        .feature-item .text {
            max-width: 100%;
        }
    
        .feature-item h3 { font-size: 24px; }
        .feature-item p { font-size: 16px; }
    }