/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 头部样式 */
.hero {
    
    background-image: url(./img/header-bg.jpg);
    background-size: 100% auto;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-btn {
    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);
    color: white;
    width: 40%;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    margin: auto;
    font-size: 1.1rem;
}

.cta-btn:hover {
    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);
}

/* 应用简介部分 */
.intro {
    padding: 50px 0;
    background-color: #fff;
    text-align: center;
}

.intro h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.intro p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

/* 宣传图部分 */
.promo {
    padding: 40px 0;
    background-color: #f9f9f9;
    text-align: center;
}

.promo-img {
    width: 100%;
    max-width: 800px;
    border-radius: 10px;
}

/* 功能介绍样式 */
.features {
    padding: 60px 0;
    background-color: #fff;
    text-align: center;
}

.features h2 {
    font-size: 2rem;
    margin-bottom: 40px;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: #f4f4f4;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 1rem;
    color: #666;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 5px;
    object-fit: contain;
}
.logo-icon {
    width: 50px;
    height: 50px;
    object-fit: contain;
}
/* 下载区域样式 */
.download {
    background-image: url(./img/bottom.png);
    background-size: 100% 100%;
    color: white;
    padding: 50px 0;
    text-align: center;
}

.download h2 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.download-btns a {
    display: inline-block;
    padding: 15px 30px;
    margin: 0 10px;
    text-decoration: none;
    border-radius: 5px;
    color: white;
    font-size: 1.1rem;
}

.btn-googleplay {

    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);

}

.btn-googleplay:hover {
    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);

}

.btn-appstore {

    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);

}

.btn-appstore:hover {
    background: linear-gradient(90deg, #45A7FE 0%, #5459FF 100%);

}

/* 页脚样式 */
footer {
    background: #131775;
    color: white;
    padding: 20px 0;
    text-align: center;
}

footer p {
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .feature-cards {
        grid-template-columns: 1fr 1fr;
    }

    .cta-btn {
        padding: 15px 30px;
        font-size: 1.2rem;
    }

    .download-btns a {
        padding: 12px 25px;
        font-size: 1rem;
    }

    .promo-img {
        max-width: 100%;
    }

    .feature-icon {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .cta-btn {
        font-size: 1rem;
    }

    .features h2, .download h2 {
        font-size: 1.5rem;
    }

    .feature-cards {
        grid-template-columns: 1fr;
    }

    .intro p {
        font-size: 1rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
    }
}