html {
    font-size: 25px;
}

rt {
    font-size: 0.6em;
}

body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    
    /* 关键：使用和 body 相同的背景图 */
    background-image: inherit;

    filter: blur(4px);   /* 模糊程度，可调 20~100px */
    transform: scale(1.2); /* 防止模糊产生边缘 */
    z-index: -1;

    /* 必须让 body 成为定位上下文 */
    pointer-events: none;
}
body {
    position: relative;
    min-height: 100vh;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 1s ease-in-out; 
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-position: center;
    background-repeat: no-repeat;
}

.card {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 30px;
    padding: 50px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.sleeping {
    color: gray;
}

.awake {
    color: rgb(16, 128, 0);
}

.maimai{
    color: orange;
}

.drive {
    color: red;
}


.error {
    color: red;
}

#sleep-date {
    position: relative;
    cursor: pointer;
}

#sleep-date::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 0;
    top: 100%;
    white-space: nowrap;
    background: rgba(0, 0, 0, 0.75);
    color: white;
    padding: 5px;
    border-radius: 5px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    z-index: 10;
    font-size: 0.6em; /* 缩小注释字体 */
}

#sleep-date:hover::after {
    opacity: 1;
    transform: translateY(0);

}