/* ===== 文章页面专用样式 ===== */
.article-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}
.article-container h1 {
    color: #002d4a;
    border-bottom: 2px solid #005b96;
    padding-bottom: 10px;
    margin-bottom: 10px;
    font-size: 28px;
}
.article-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 25px;
}
.article-body {
    background: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    line-height: 1.9;
    color: #444;
    font-size: 16px;
}
.article-body h2 {
    color: #002d4a;
    font-size: 20px;
    margin: 30px 0 15px 0;
    border-left: 4px solid #005b96;
    padding-left: 15px;
}
.article-body h3 {
    color: #005b96;
    font-size: 17px;
    margin: 20px 0 10px 0;
}
.article-body p {
    margin: 12px 0;
}
.article-body ul,
.article-body ol {
    padding-left: 25px;
    margin: 10px 0;
}
.article-body li {
    margin: 6px 0;
}

/* ===== 文章内插图 ===== */
.article-figure {
    margin: 25px 0;
    text-align: center;
}
.article-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid #eef2f5;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.article-figure .caption {
    display: block;
    color: #888;
    font-size: 13px;
    margin-top: 8px;
}
.article-figure.align-left {
    float: left;
    margin: 10px 20px 10px 0;
    max-width: 45%;
}
.article-figure.align-right {
    float: right;
    margin: 10px 0 10px 20px;
    max-width: 45%;
}

/* ===== 文章导航（侧边栏样式） ===== */
.article-nav {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.article-nav h3 {
    color: #002d4a;
    font-size: 16px;
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid #005b96;
}
.article-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 6px 20px;
}
.article-nav ul li {
    padding: 4px 0;
}
.article-nav ul li a {
    color: #005b96;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.article-nav ul li a:hover {
    color: #004b7c;
    text-decoration: underline;
}
.article-nav ul li a.active {
    color: #002d4a;
    font-weight: bold;
    text-decoration: none;
    cursor: default;
}

/* ===== 上下页翻页 ===== */
.article-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #eef2f5;
    flex-wrap: wrap;
    gap: 10px;
}
.article-pagination a {
    display: inline-block;
    padding: 8px 18px;
    background: #f5f7fa;
    color: #005b96;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    border: 1px solid #eef2f5;
    transition: all 0.2s;
}
.article-pagination a:hover {
    background: #005b96;
    color: #fff;
    border-color: #005b96;
}
.article-pagination .disabled {
    opacity: 0.4;
    pointer-events: none;
}
.article-pagination .page-indicator {
    color: #999;
    font-size: 14px;
}

/* ===== 返回列表 ===== */
.back-to-list {
    display: inline-block;
    margin-bottom: 15px;
    color: #005b96;
    text-decoration: none;
    font-size: 14px;
}
.back-to-list:hover {
    text-decoration: underline;
}

/* ===== 清除浮动 ===== */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .article-body {
        padding: 18px;
        font-size: 15px;
    }
    .article-container h1 {
        font-size: 22px;
    }
    .article-nav ul {
        grid-template-columns: 1fr;
    }
    .article-figure.align-left,
    .article-figure.align-right {
        float: none;
        max-width: 100%;
        margin: 15px 0;
    }
    .article-pagination {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    .article-pagination a {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .article-body {
        padding: 14px;
        font-size: 14px;
    }
    .article-container h1 {
        font-size: 19px;
    }
    .article-nav ul li a {
        font-size: 13px;
    }
}