/* 
 * 简洁折叠内容样式
 * 仿照 https://www.osssr.com/657.html 的样式
 * 调整：减少上方间距，修复图标切换和垂直问题
 */

/* 折叠项 - 减少上方间距 */
.simple-collapse-item {
    margin: -8px 0; /* 减少上下间距 */
    border: 1px solid #e0e0e0;
    /* border-radius: 4px; */
    background: #fff;
    transition: border-color 0.2s ease;
}

.simple-collapse-item:hover {
    border-color: #0073aa;
}

/* 折叠头部 - 减少内边距 */
/* 折叠头部 - 设置固定高度 */
.simple-collapse-header {
    padding: 0;
    margin: 0;
    height: 34px; /* 设置固定高度 */
    overflow: hidden; /* 确保内容不超出 */
}

/* 调整切换按钮适应新的头部高度 */
.simple-collapse-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%; /* 占据父元素全部高度 */
    padding: 0 12px; /* 移除垂直内边距，使用父元素高度 */
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: #333;
    transition: background-color 0.2s ease;
    line-height: 34px; /* 与父元素高度一致，确保垂直居中 */
}

.simple-collapse-toggle:hover {
    background-color: #f5f5f5;
}

.simple-collapse-toggle:focus {
    outline: none;
    background-color: #f0f0f0;
}

.simple-collapse-title {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
}

/* 图标样式 - 修复垂直问题 */
.simple-collapse-icon {
    font-size: 12px;
    color: #666;
    margin-left: 10px;
    transition: transform 0.3s ease;
    min-width: 16px;
    text-align: center;
    display: inline-block;
    transform-origin: center center;
    /* 确保图标在中心位置 */
    line-height: 1;
    vertical-align: middle;
}

/* 修复展开时的图标垂直问题 */
.simple-collapse-toggle[aria-expanded="true"] .simple-collapse-icon {
    transform: rotate(0deg); /* 不旋转，保持原方向 */
}

/* 折叠时的图标效果 - 将右箭头旋转为垂直方向 */
.simple-collapse-toggle[aria-expanded="false"] .simple-collapse-icon {
    transform: rotate(0deg); /* 将右箭头旋转为向上 */
}

/* 修复：使用实际字符而不是旋转来切换图标 */
/* 我们将在JS中直接切换字符，这里只保留基本样式 */
.simple-collapse-toggle .simple-collapse-icon {
    transition: transform 0.3s ease;
}

/* 折叠内容 - 减少内容区域间距 */
.simple-collapse-content {
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
    max-height: 0;
    opacity: 0;
}

.simple-collapse-content[style*="display: block"] {
    max-height: 5000px !important;
    opacity: 1;
}

.simple-collapse-content-inner {
    padding: 12px 15px; /* 减少内边距 */
    border-top: 1px solid #f0f0f0;
    font-size: 14px;
    line-height: 1.6;
    color: #444;
}

/* 内容样式 - 减少内部元素间距 */
.simple-collapse-content-inner > *:first-child {
    margin-top: 0 !important;
}

.simple-collapse-content-inner > *:last-child {
    margin-bottom: 0 !important;
}

.simple-collapse-content-inner p {
    margin: 0 0 8px 0; /* 减少段落间距 */
}

.simple-collapse-content-inner p:last-child {
    margin-bottom: 0;
}

.simple-collapse-content-inner ul,
.simple-collapse-content-inner ol {
    margin: 0 0 8px 20px; /* 减少列表间距 */
    padding: 0;
}

.simple-collapse-content-inner li {
    margin-bottom: 4px; /* 减少列表项间距 */
}

.simple-collapse-content-inner h1,
.simple-collapse-content-inner h2,
.simple-collapse-content-inner h3,
.simple-collapse-content-inner h4,
.simple-collapse-content-inner h5,
.simple-collapse-content-inner h6 {
    margin: 12px 0 8px 0; /* 减少标题间距 */
    font-weight: 600;
}

.simple-collapse-content-inner h1 { font-size: 18px; }
.simple-collapse-content-inner h2 { font-size: 17px; }
.simple-collapse-content-inner h3 { font-size: 16px; }
.simple-collapse-content-inner h4 { font-size: 15px; }
.simple-collapse-content-inner h5 { font-size: 14px; }
.simple-collapse-content-inner h6 { font-size: 13px; }

.simple-collapse-content-inner code {
    background: #f5f5f5;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: Consolas, Monaco, monospace;
    font-size: 13px;
}

.simple-collapse-content-inner pre {
    background: #f5f5f5;
    padding: 8px 10px; /* 减少内边距 */
    border-radius: 4px;
    overflow-x: auto;
    margin: 8px 0; /* 减少外边距 */
    font-family: Consolas, Monaco, monospace;
    font-size: 13px;
    line-height: 1.4;
}

.simple-collapse-content-inner blockquote {
    border-left: 3px solid #ddd;
    margin: 8px 0; /* 减少外边距 */
    padding-left: 12px; /* 减少内边距 */
    color: #666;
    font-style: italic;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .simple-collapse-toggle {
        padding: 8px 12px; /* 移动端进一步减少内边距 */
        font-size: 14px;
    }
    
    .simple-collapse-content-inner {
        padding: 10px 12px; /* 移动端进一步减少内边距 */
    }
    
    .simple-collapse-title {
        font-size: 14px;
    }
    
    .simple-collapse-item {
        margin: 6px 0; /* 移动端进一步减少间距 */
    }
    
    .simple-collapse-icon {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .simple-collapse-toggle {
        padding: 6px 10px;
        font-size: 13px;
        min-height: 40px;
    }
    
    .simple-collapse-content-inner {
        padding: 8px 10px;
    }
    
    .simple-collapse-item {
        margin: 4px 0; /* 移动端最小间距 */
    }
}

/* 紧凑模式 - 额外的小间距选项 */
.simple-collapse-item.compact {
    margin: 4px 0 !important;
    border-radius: 3px;
}

.simple-collapse-item.compact .simple-collapse-toggle {
    padding: 6px 12px !important;
    min-height: 36px;
}

.simple-collapse-item.compact .simple-collapse-content-inner {
    padding: 8px 12px !important;
}

/* 无边框模式 */
.simple-collapse-item.no-border {
    border: none !important;
    border-radius: 0;
}

.simple-collapse-item.no-border .simple-collapse-content-inner {
    border-top: none !important;
}

/* 无间距模式 */
.simple-collapse-item.no-margin {
    margin: 0 !important;
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    .simple-collapse-item {
        background: #2d2d2d;
        border-color: #444;
    }
    
    .simple-collapse-toggle {
        color: #e0e0e0;
    }
    
    .simple-collapse-toggle:hover {
        background-color: #333;
    }
    
    .simple-collapse-toggle:focus {
        background-color: #3a3a3a;
    }
    
    .simple-collapse-icon {
        color: #aaa;
    }
    
    .simple-collapse-content-inner {
        border-top-color: #444;
        color: #ccc;
    }
    
    .simple-collapse-content-inner code {
        background: #3a3a3a;
        color: #e0e0e0;
    }
    
    .simple-collapse-content-inner pre {
        background: #3a3a3a;
        color: #e0e0e0;
    }
}

/* 打印样式 */
@media print {
    .simple-collapse-item {
        border: 1px solid #ddd;
        page-break-inside: avoid;
        margin: 6px 0 !important; /* 打印时使用较小间距 */
    }
    
    .simple-collapse-toggle {
        cursor: default;
        color: #000;
        font-weight: bold;
        border-bottom: 1px solid #eee;
        padding: 6px 10px !important;
    }
    
    .simple-collapse-icon {
        display: none;
    }
    
    .simple-collapse-content {
        display: block !important;
        max-height: none !important;
        opacity: 1 !important;
    }
    
    .simple-collapse-content-inner {
        border-top: none;
        padding: 8px 10px !important;
    }
}

/* 编辑器中的预览 */
.simple-collapse-preview {
    border: 1px dashed #ccc !important;
    padding: 12px !important; /* 减少预览内边距 */
    margin: 8px 0 !important; /* 减少预览外边距 */
    background: #f8f9fa !important;
    border-radius: 4px !important;
}

/* 动画效果 */
.simple-collapse-expanding {
    animation: simpleCollapseExpand 0.3s ease;
}

@keyframes simpleCollapseExpand {
    from { opacity: 0; transform: translateY(-5px); } /* 减少动画移动距离 */
    to { opacity: 1; transform: translateY(0); }
}

/* 图标平滑动画 - 简化版本 */
.simple-collapse-icon {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease;
}

/* 隐藏内容区域内的第一个<br>标签 */
.simple-collapse-content-inner br:first-of-type {
    display: none;
}
}
/* 安卓手机特定样式 */
@media only screen and (max-width: 768px) {
    /* 通过UA检测安卓设备，这里使用常见的方法：匹配安卓设备 */
    /* 注意：纯CSS无法准确检测设备类型，以下是通过常见屏幕尺寸和特性组合 */
    @media (hover: none) and (pointer: coarse) {
        /* 这个组合通常匹配触摸屏移动设备 */
        .simple-collapse-item {
            margin: -8px 0; /* 安卓手机上下间距 */
        }
    }
}