/* 页面整体样式 */
body {
    font-family: 'Microsoft YaHei', sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f8f4f1;
    position: relative;
}

/* 雪花背景效果 */
body::before {
    content: '';
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background-image: 
        radial-gradient(3px 3px at 20% 30%, rgba(255, 255, 255, 0.7) 50%, transparent),
        radial-gradient(4px 4px at 40% 70%, rgba(255, 255, 255, 0.6) 50%, transparent),
        radial-gradient(2px 2px at 60% 20%, rgba(255, 255, 255, 0.6) 50%, transparent),
        radial-gradient(3px 3px at 80% 50%, rgba(255, 255, 255, 0.7) 50%, transparent),
        radial-gradient(4px 4px at 30% 80%, rgba(255, 255, 255, 0.6) 50%, transparent),
        radial-gradient(2px 2px at 70% 40%, rgba(255, 255, 255, 0.7) 50%, transparent),
        radial-gradient(3px 3px at 90% 90%, rgba(255, 255, 255, 0.6) 50%, transparent);
    background-size: 400px 400px;
    animation: snowfall 20s linear infinite;
}

body::after {
    content: '';
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background-image: 
        radial-gradient(2px 2px at 10% 10%, rgba(255, 255, 255, 0.5) 50%, transparent),
        radial-gradient(3px 3px at 50% 40%, rgba(255, 255, 255, 0.5) 50%, transparent),
        radial-gradient(2px 2px at 30% 60%, rgba(255, 255, 255, 0.5) 50%, transparent),
        radial-gradient(3px 3px at 70% 80%, rgba(255, 255, 255, 0.5) 50%, transparent),
        radial-gradient(2px 2px at 90% 30%, rgba(255, 255, 255, 0.5) 50%, transparent),
        radial-gradient(3px 3px at 20% 70%, rgba(255, 255, 255, 0.5) 50%, transparent);
    background-size: 350px 350px;
    animation: snowfall 15s linear infinite;
}

@keyframes snowfall {
    0% {
        transform: translate3d(0, -400px, 0);
    }
    100% {
        transform: translate3d(0, 400px, 0);
    }
}

/* 为了让内容区域更清晰可见 */
.main-list > li {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(3px);
}

.special {
    background: rgba(250, 246, 243, 0.92);
    backdrop-filter: blur(3px);
}

/* 标题样式 */
h1 {
    width: 100%;
    text-align: left;
    color: #9b2d2d;
    margin: 45px 0 0 0;
    padding: 0;
}

/* 列表基础样式 */
.main-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
    clear: both;
}

/* 主列表项容器样式 */
.main-list > li {
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(139, 31, 31, 0.06);
    overflow: hidden;
    transition: all 0.3s ease;
    border-left: 3px solid #2d5a4b; /* 深绿色边框 */
}

/* 主列表项悬停效果 */
.main-list > li:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(139, 31, 31, 0.1);
    border-left-color: #9b2d2d; /* 切换为红色边框 */
}

/* 主列表项内容样式 */
.main-item {
    padding: 15px 20px;
    font-size: 1.1em;
    font-weight: bold;
    background: #faf6f3; /* 淡米色背景 */
    color: #2d5a4b; /* 深绿色文字 */
}

/* 移除箭头相关样式 */
.main-item::after {
    display: none;
}

/* 修改子列表样式，移除展开/收起相关属性 */
.sub-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background: rgba(255, 255, 255, 0.95);
}

/* 子列表项样式 */
.sub-list li {
    padding: 12px 20px;
    border-top: 1px solid #f1eae5;
    transition: all 0.3s ease;
}

/* 子列表项悬停效果 */
.sub-list li:hover {
    background-color: #faf6f3;
    padding-left: 25px;
}

/* 链接样式 */
.sub-list a {
    text-decoration: none;
    color: #666666; /* 中性灰色 */
    display: block;
    transition: all 0.3s ease;
}

/* 链接悬停效果 */
.sub-list a:hover {
    color: #9b2d2d; /* 圣诞红色 */
}

/* 日期显示样式 */
.date-display {
    margin-bottom: 8px;
    color: #2d5a4b;
    font-size: 1em;
    position: absolute;
    top: 0;
    left: 0;
}

.special {
    background-color: rgba(250, 246, 243, 0.95);
    padding: 5px 15px;
    border-radius: 15px;
    display: inline-block;
    border: 1px solid #e5d6d6;
    backdrop-filter: blur(5px);
}

/* 添加头部布局样式 */
.header {
    position: relative;
    margin-bottom: 40px;
    padding-top: 20px;
    min-height: 100px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

/* 左侧时间容器 */
.date-display {
    margin-bottom: 8px;
    color: #2d5a4b;
    font-size: 1em;
    position: absolute;
    top: 0;
    left: 0;
}

/* 右侧天气容器 */
.header-right {
    position: absolute;
    top: 0;
    right: 0;
}

/* 调整天气预报iframe大小 */
.header-right iframe {
    max-width: 420px;
    height: 45px;
    opacity: 0.95;
    border-radius: 4px;
}

/* 确保主内容不会被覆盖 */
.main-list {
    margin-top: 20px;
    clear: both;
}

/* 在小屏幕上调整布局 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: center;
        min-height: auto;
        margin-bottom: 30px;
    }

    .date-display {
        position: static;
        text-align: center;
        margin-bottom: 10px;
    }

    .header-right {
        position: static;
        margin-top: 10px;
        text-align: center;
    }

    h1 {
        text-align: center;
        margin-top: 20px;
    }

    .header-right iframe {
        max-width: 100%;
        margin: 0 auto;
    }
}