/* 字体设置 */
@font-face {
    font-family: 'MiSans';
    src: url('https://font.sec.miui.com/font/css?family=MiSans:200,300,400,450,500,600,650,700:Chinese_Simplify,Latin&display=swap') format('truetype');
    font-weight: 400;
    font-style: normal;
}

/* 页面基本样式 */
:root {
    --primary-color: rgba(0, 0, 0, 0.8);
    --primary-color-hover: rgb(0, 0, 0);
    --bg-color: #f0f0f0;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'MiSans', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100vh;
    margin: 0;
    background-color: var(--bg-color);
    overflow: hidden;
    /* 使整个页面上的所有文字不可被选中 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 动画 */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮样式 */
button {
    padding: 15px 30px;
    font-size: 1.5em;
    border: none;
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 10px var(--shadow-color);
    border-radius: 20px;
}

button:hover {
    background-color: var(--primary-color-hover);
    transform: scale(1.05);
}

button:active {
    transform: scale(0.95);
}

button:disabled {
    cursor: not-allowed;
    background-color: #ccc;
    opacity: 0.6;
}

/* 更新日志按钮样式 */
.update-log-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 146px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 1.2em;
    z-index: 1000;
    border-radius: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 1px;
    padding-right: 1px;
}

.update-log-button:disabled {
    cursor: pointer;
    opacity: 0.6;
}

/* 隐藏样式 */
.hidden {
    display: none;
    /* 控制元素的显示与隐藏 */
}

/* 更新日志内容样式 */
.update-log {
    position: fixed;
    bottom: 80px;
    right: 10px;
    background: rgba(255, 255, 255, 0.75);
    -webkit-backdrop-filter: blur(55px) saturate(150%);
    backdrop-filter: blur(55px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    padding: 20px;
    max-width: 500px;
    z-index: 999;
    height: auto;
    opacity: 0;
    transform: translateY(20px);
    text-align: left;
    transition: opacity 0.3s cubic-bezier(0.2, 0, 0.3, 1), transform 0.3s cubic-bezier(0.2, 0, 0.3, 1);
}

/* 显示时的样式 */
.update-log.visible {
    opacity: 1;
    transform: translateY(0);
    max-height: auto;
}

.update-log h2 {
    font-size: 1.5em;
    color: #333;
    margin: 0 0 10px;
}

.update-log p {
    font-size: 1em;
    color: #555;
    line-height: 1.5;
}

.update-log-container {
    max-height: 250px;
    overflow-y: auto;
    background-color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    padding: 10px;
    margin-bottom: 20px;
}

/* 课程表按钮样式 */
.schedule-button {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 146px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 1.1em;
    z-index: 1000;
    border-radius: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 12px;
    padding-right: 1px;
}

/* 遮罩和开场画面样式 */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0);
    /* 半透明黑色 */
    z-index: 999;
    opacity: 1;
    transition: opacity 1s ease;
}

/* 开屏遮罩 */
.splashscreen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 3em;

    /* 调整字体大小 */
    color: white;
    z-index: 1000;
    opacity: 0;
    transition: opacity 1s ease;
    text-align: center;
    padding: 0 20px;
    line-height: 1.4;
    /* 增加行高，提高可读性 */
}

/* 可见状态 */
.visible {
    opacity: 1;
}

/* 渐变效果 */
.splash-message {
    margin: 20px 0;
    /* 添加间距 */
    opacity: 0;
    transition: opacity 0.5s ease;
    /* 添加过渡效果 */
}

/* 文本显示状态 */
.splash-message.visible {
    opacity: 1;
    /* 显示时的透明度 */
}

/* 引用人名样式 */
.author {
    align-self: flex-end;
    margin-top: 0.5em;
    font-size: 0.6em;
    /* 增加字体大小 */
    margin-right: 20px;
    /* 调整右边距 */
    text-align: center;
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

/* 动画效果 */
@keyframes fadeIn {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

/* 添加文本动画 */
.splash-message {
    animation: fadeIn 1s forwards;
    /* 添加动画 */
}

/* 背景图样式 */
#background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}

/* 高级材质模糊窗口样式 */
#modal {
    position: absolute;
    width: 85%;
    height: 75%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.1);
    -webkit-backdrop-filter: blur(25px) saturate(150%) contrast(90%);
    backdrop-filter: blur(25px) saturate(150%) contrast(90%);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* 抽签结果标题容器样式 */
#result-title-container {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}

/* 标题样式 */
#result-title {
    font-size: 3vw;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
}

/* 主内容容器样式 */
#container {
    text-align: center;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

/* 空行占位样式 */
.spacer {
    flex-grow: 0.1;
}

/* 抽签结果文本样式 */
#result {
    font-size: 4.5em;
    color: #ffffff;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
    margin-top: 30px;
    text-align: center;
}

/* 向上淡入的动画 */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.5s forwards;
}