@charset "UTF-8";

/* ==================== 电脑端主页面容器 ==================== */
.desktop-main {
    padding: 80px 0 100px 0;
    background: #ffffff;
    min-height: calc(100vh - 70px - 260px); /* 确保内容不足时页脚仍居底 */
}

/* 顶端大字介绍区 */
.desktop-hero {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 50px auto;
}
.desktop-hero h2 {
    font-size: 38px;
    color: #111111;
    margin-bottom: 18px;
    font-weight: 700;
}
.desktop-hero p {
    font-size: 16px;
    color: #666666;
    line-height: 1.6;
}

/* ==================== 核心下载卡片区域 ==================== */
.action-box {
    max-width: 460px;
    margin: 0 auto 80px auto;
    background: #fafafa;
    border: 1px solid #ebeeef;
    padding: 45px 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.01);
}
.action-box h3 {
    font-size: 22px;
    margin-bottom: 30px;
    color: #222222;
    font-weight: 600;
}

/* 电脑端下载专用绿色大按钮样式 */
.action-box .btn-dl {
    display: block;
    background-color: #06C755; /* LINE品牌专属绿色 */
    color: #ffffff;
    text-align: center;
    padding: 16px 20px;
    margin-bottom: 16px;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.2s ease-in-out, transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}
.action-box .btn-dl:last-child {
    margin-bottom: 0; /* 最后一个按钮清除下边距 */
}
.action-box .btn-dl:hover {
    background-color: #05b34c; /* 鼠标悬停时加深绿色 */
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 199, 85, 0.2);
}
.action-box .btn-dl .txt {
    font-size: 16px;
    letter-spacing: 0.5px;
}

/* ==================== 电脑端专享特性网格 ==================== */
.desktop-features {
    display: flex;
    gap: 30px;
    max-width: 1050px;
    margin: 0 auto;
    justify-content: center;
}
.feat-card {
    flex: 1;
    padding: 35px 25px;
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    background: #fff;
    text-align: center;
    transition: border-color 0.2s;
}
.feat-card:hover {
    border-color: #06C755; /* 鼠标触碰时边框微显绿色 */
}
.feat-icon {
    font-size: 36px;
    margin-bottom: 15px;
}
.feat-card h4 {
    font-size: 18px;
    color: #111111;
    margin-bottom: 12px;
    font-weight: 600;
}
.feat-card p {
    font-size: 14px;
    color: #666666;
    line-height: 1.6;
}

/* ==================== 移动端响应式适配 ==================== */
@media (max-width: 768px) {
    .desktop-main {
        padding: 50px 0 60px 0;
    }
    .desktop-hero h2 {
        font-size: 28px;
    }
    .action-box {
        padding: 35px 20px;
        margin-bottom: 50px;
        width: 100%;
    }
    .desktop-features {
        flex-direction: column; /* 窄屏时横向网格变为垂直流布局 */
        gap: 20px;
        padding: 0 15px;
    }
    .feat-card {
        padding: 25px 20px;
    }
}