/* 全局样式重置与基础配置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", Arial, sans-serif;
}

body {
    background: url("../picture/bg.png") no-repeat;
    background-size: 100% 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* 页面容器 - 控制整体宽度和内边距，保证大气感 */
.container {
    width: 100%;
    max-width: 1000px;
    background-color: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(10, 80, 120, 0.1);
    padding: 60px 40px;
    text-align: center;
    border: 1px solid #e0eef5;
}

/* Logo区域样式 */
.logo-section {
    margin-bottom: 50px;
}

.logo-title {
    font-size: 36px;
    color: #0f6cbd; /* 匹配logo主蓝调 */
    font-weight: 700;
    margin-bottom: 8px;
}

.logo-subtitle {
    font-size: 16px;
    color: #668cad;
    letter-spacing: 1px;
}

/* 下载选项区域 - 弹性布局，均匀分布 */
.download-section {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* 系统下载卡片 - 核心交互元素 */
.os-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 30px 40px;
    border-radius: 12px;
    position: relative;
    text-decoration: none;
}

/* 悬停交互效果：上浮+阴影+背景色变化 */
.os-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(15, 108, 189, 0.15);
    background-color: #f8fbfe;
}

/* 系统图标样式 */
.os-icon {
    width: 120px;
    height: 120px;
    margin-bottom: 20px;
}

.os-icon.windows {/* background: #3684BD; */border-radius: 100%;}

.os-icon.macos {
    /* background: #3684BD; */
    /* border-radius: 100%; */
}
.os-icon img{
	width: 100%;
	height: 100%;
	margin-top: 20%;
}


/* 系统名称文字样式 */
.os-name {
    font-size: 20px;
    color: #0f6cbd;
    font-weight: 600;
    margin-top: 10px;
}

/* 下载提示文字（悬停时显示） */
.download-tip {
    position: absolute;
    bottom: -30px;
    font-size: 14px;
    color: #668cad;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.os-card:hover .download-tip {
    opacity: 1;
}

/* 响应式适配 - 小屏幕下缩小间距和尺寸 */
@media (max-width: 768px) {
    .download-section {
        gap: 40px;
    }

    .os-icon {
        width: 90px;
        height: 90px;
    }

    .logo-title {
        font-size: 28px;
    }
}
.logo{
	width: 200px;
	height: auto;
	position: fixed;
	top: 0;
	left: 40px;
}