:root {
    --color-forest: #1b3320;
    --color-accent: #81a64b;
    --color-accent-soft: #f4f7ed;
    --color-link: var(--color-accent);
    --color-link-hover: var(--color-forest);
    --color-sand: #fdfdfb;
    --color-text: #2c3e50;
    --color-white: #ffffff;
    --color-border: #dddddd;
    --color-border-light: #eeeeee;
    --color-disabled-bg: #f9f9f9;
    --color-disabled-text: #cccccc;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --color-table-header: var(--color-forest);
    --color-table-text: var(--color-text);
    --color-table-accent: #777777;
    --color-btn-bg: var(--color-accent);
    --color-btn-hover: var(--color-forest);
    --color-error: #cc0000;
    --max-width: 1100px;
    --max-width-article: 800px;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--color-sand);
    color: var(--color-text);
    margin: 0;
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    color: var(--color-forest);
}

.site-header {
    background-color: var(--color-forest);
    color: var(--color-white);
    padding: 1.5rem 0;
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-white);
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover { color: var(--color-accent); }

.main-nav a.active {
    color: var(--color-accent);
    font-weight: 700;
    border-bottom: 2px solid var(--color-accent);
}

.main-content {
    max-width: var(--max-width);
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.post-card {
    background: var(--color-white);
    border-radius: 8px;
    border: 1px solid var(--color-border-light);
    box-shadow: 0 4px 6px var(--color-shadow);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.post-card:hover { transform: translateY(-5px); box-shadow: 0 10px 15px var(--color-shadow); }

.post-card-content { padding: 1.5rem; flex-grow: 1; display: flex; flex-direction: column; }

.read-more {
    margin-top: auto;
    text-decoration: none;
    color: var(--color-forest);
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    transition: color 0.2s ease;
}

.read-more:after {
    content: ' →';
    margin-left: 5px;
    transition: margin-left 0.2s ease;
}

.read-more:hover {
    color: var(--color-accent);
}

.read-more:hover:after {
    margin-left: 10px;
}

.pagination {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 4rem 0;
    gap: 0.5rem;
}

.pagination li a, .pagination li span {
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--color-forest);
    background-color: var(--color-white);
}

.pagination li a:hover { background-color: var(--color-accent); color: var(--color-white); }
.pagination li.disabled span { color: var(--color-disabled-text); background-color: var(--color-disabled-bg); }

.post-detail {
    max-width: var(--max-width-article);
    margin: 0 auto;
}

.post-header {
    margin-bottom: 3rem;
    text-align: center;
}

.post-header .post-date {
    display: block;
    margin-bottom: 1rem;
    color: var(--color-accent);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.post-detail .page-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    border-bottom: none;
}

.post-content {
    font-size: 1.15rem;
    line-height: 1.8;
}

.post-content h2 { margin-top: 2.5rem; }

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: 0 4px 10px var(--color-shadow);
}

.rich-text-content a,
.post-content a {
    color: var(--color-link);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.rich-text-content a:hover,
.post-content a:hover {
    color: var(--color-link-hover);
    border-bottom-color: var(--color-link-hover);
    background-color: var(--color-accent-soft);
}

.post-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border-light);
}

.back-link {
    text-decoration: none;
    color: var(--color-forest);
    font-weight: 600;
}

.docs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px var(--color-shadow);
}

.docs-table th {
    background-color: var(--color-table-header);
    color: var(--color-white);
    text-align: left;
    padding: 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.docs-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
    color: var(--color-table-text);
}

.docs-table tbody tr:hover {
    background-color: var(--color-accent-soft);
}

.doc-flex {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.doc-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.doc-title {
    display: block;
    font-size: 1.05rem;
    color: var(--color-forest);
}

.doc-date {
    color: var(--color-table-accent);
    font-size: 0.9rem;
    white-space: nowrap;
}

.doc-desc {
    margin: 0.2rem 0 0;
    font-size: 0.85rem;
    color: var(--color-table-accent);
}

.btn-download {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--color-btn-bg);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.2s;
}

.btn-download:hover {
    background-color: var(--color-btn-hover);
}

.no-file {
    color: var(--color-error);
    font-style: italic;
    font-size: 0.8rem;
}

.site-footer {
    text-align: center;
    padding: 3rem 0;
    margin-top: 5rem;
    background-color: var(--color-border-light);
    color: #666;
}

@media (max-width: 600px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .main-nav {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .main-nav ul {
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: 5px;
    }

    .main-nav a {
        font-size: 0.9rem;
        padding: 0.3rem 0.5rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .post-card-content {
        padding: 1.25rem;
    }

    .post-card h2 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    .post-detail .page-title {
        font-size: 2rem;
    }

    .post-content {
        font-size: 1rem;
        line-height: 1.6;
    }

    .pagination {
        flex-wrap: wrap;
        gap: 0.8rem;
        margin: 2rem 0;
    }

    .pagination li {
        order: 1;
    }

    .pagination .page-info {
        order: 2;
        width: 100%;
        text-align: center;
        margin: 0;
        font-size: 0.85rem;
    }

    .pagination li a, .pagination li span {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .docs-container {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .page-title {
        font-size: 1.8rem;
    }
}