* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "STKaiti", "KaiTi", "楷体", Georgia, serif;
    background-color: #2b2520;
    color: #e8dcc8;
    line-height: 1.8;
    padding: 40px 20px;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    background-color: #3d3630;
    padding: 40px 50px;
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid #4a4035;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.back-link {
    color: #c9b896;
    text-decoration: none;
    border: 1px solid #6b5d4f;
    padding: 6px 12px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background-color: #4a4238;
    border-color: #c9b896;
}

.language-switch {
    text-align: right;
}

.lang-btn {
    display: inline-block;
    padding: 6px 12px;
    margin-left: 6px;
    color: #c9b896;
    background-color: transparent;
    border: 1px solid #6b5d4f;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: "STKaiti", "KaiTi", "楷体", Georgia, serif;
}

.lang-btn:hover {
    background-color: #4a4238;
    border-color: #c9b896;
}

.lang-btn.active {
    background-color: #6b5d4f;
    color: #f5ecd7;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #6b5d4f;
}

h1 {
    font-size: 2.3rem;
    font-weight: normal;
    color: #f5ecd7;
    margin-bottom: 10px;
    letter-spacing: 4px;
}

.subtitle {
    color: #c9b896;
    letter-spacing: 2px;
}

.status {
    margin-bottom: 16px;
    color: #c9b896;
}

.status.error {
    color: #e0a39a;
}

.markdown-content {
    color: #e8dcc8;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    color: #f5ecd7;
    margin: 18px 0 8px;
}

.markdown-content p,
.markdown-content li,
.markdown-content blockquote {
    color: #d4c5b0;
}

.markdown-content ul,
.markdown-content ol {
    margin: 8px 0 12px 24px;
}

.markdown-content blockquote {
    border-left: 3px solid #6b5d4f;
    padding-left: 12px;
    margin: 10px 0;
}

.markdown-content code {
    background-color: #2f2923;
    padding: 1px 4px;
    border-radius: 4px;
}

.markdown-content pre {
    background-color: #2f2923;
    border: 1px solid #564d42;
    padding: 12px;
    overflow-x: auto;
    margin: 12px 0;
}

.markdown-content pre code {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid #564d42;
    padding: 8px;
    text-align: left;
}

.markdown-content th {
    background-color: #4a4238;
}

@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    h1 {
        font-size: 1.9rem;
    }
}