/* --- 核心布局 --- */
        body { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; line-height: 1.8; color: #333; margin: 0; background: #fff; }
        a { text-decoration: none; color: inherit; transition: 0.2s; }
        .container { max-width: 900px; margin: 0 auto; padding: 0 15px; }

        /* --- 导航头更新：支持图片 Logo --- */
        .top-nav { background: #004a92; color: #fff; height: 70px; line-height: 70px; margin-bottom: 20px; }
        .nav-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; height: 100%; }
		
        /* Logo 图片样式控制 */
        .logo img { 
            height: 45px; /* 控制 Logo 高度 */
            width: auto; 
            vertical-align: middle; 
            display: block;
        }

        .nav-links { display: flex; list-style: none; margin: 0; padding: 0; }
        .nav-links li { margin-left: 25px; }
        .nav-links a { font-size: 15px; opacity: 0.9; color: #fff; }
        .nav-links a:hover { opacity: 1; color: #ffcc00; }

        /* --- 面包屑 --- */
        .breadcrumb { font-size: 14px; color: #888; margin: 20px 0; border-bottom: 1px solid #eee; padding-bottom: 10px; }
        .breadcrumb a:hover { color: #004a92; }
		 .nav-links a:hover { color: #ffcc00; }
.nav-phone { color: #ffcc00 !important; font-weight: bold; border: 1px solid #ffcc00; padding: 5px 15px; border-radius: 20px; line-height: 1; }

        /* --- 文章标题区 --- */
        header { margin-bottom: 35px; }
        h1 { font-size: 38px; line-height: 1.4; color: #000; margin: 10px 0 25px 0; font-weight: bold; }
        .meta-info { font-size: 14px; color: #999; display: flex; gap: 25px; align-items: center; border-bottom: 1px solid #f0f0f0; padding-bottom: 15px; }
        .font-tools span { cursor: pointer; margin-left: 12px; border: 1px solid #eee; padding: 2px 8px; border-radius: 3px; font-size: 12px; }
        .font-tools span:hover { background: #f5f5f5; color: #004a92; }

        /* --- 正文区 --- */
        .article-body { font-size: 18px; color: #333; text-align: justify; }
        .article-body p { margin-bottom: 28px; text-indent: 0.5 }
        .article-body img { display: block; max-width: 100%; margin: 30px auto; border-radius: 2px; }
        .img-caption { text-align: center; display: block; font-size: 14px; color: #888; margin-top: -20px; margin-bottom: 30px; }
        .article-body strong { color: #000; font-weight: bold; border-bottom: 2px solid #ffcc00; }
        
        /* --- 责任编辑 --- */
        .editor-tag { text-align: right; font-size: 14px; color: #999; margin: 60px 0 30px; padding-right: 10px; }

        /* --- 相关阅读 --- */
        .recommend-section { margin-top: 50px; padding: 30px; background: #f9fbff; border-top: 3px solid #004a92; }
        .rec-title { font-size: 18px; font-weight: bold; color: #004a92; margin-bottom: 20px; display: flex; align-items: center; }
        .rec-title:before { content: ""; width: 4px; height: 18px; background: #004a92; margin-right: 10px; }
        .rec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px 40px; }
        .rec-item { font-size: 16px; color: #444; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .rec-item:before { content: "·"; font-weight: bold; margin-right: 8px; color: #004a92; }
        .rec-item:hover { color: #c00; text-decoration: underline; }

        /* --- 页脚 --- */
        footer { margin-top: 80px; padding: 40px 0; background: #333; color: #bbb; text-align: center; font-size: 13px; }

        /* 响应式适配 */
        @media (max-width: 768px) {
            h1 { font-size: 26px; }
            .meta-info { flex-direction: column; align-items: flex-start; gap: 8px; }
            .rec-grid { grid-template-columns: 1fr; }
            .nav-inner { justify-content: center; }
            .nav-links { display: none; }
        }
		
	
    .nav-bar {
        background-color: #004a92; /* 建议使用高服机械品牌色（深蓝色） */
        color: #ffffff;           /* 字体颜色设为白色 */
        padding: 10px 0;          /* 增加上下间距 */
        box-shadow: 0 2px 5px rgba(0,0,0,0.1); /* 添加阴影增加层次感 */
    }

    .nav-links li a {
        color: #ffffff;           /* 确保链接文字也是白色 */
        text-decoration: none;
        margin-left: 20px;
    }
    
    .nav-inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }

    /* 1. 文章整体排版：自动换行与行高 */
    .article-body {
        line-height: 1.8;
        color: #333;
        word-wrap: break-word;      /* 自动换行 */
        word-break: break-all;     /* 强制拆分长字符 */
        font-size: 16px;
    }

    /* 2. 多级标题样式：新闻感层次 */
    .article-body h2 {
        font-size: 22px;
        color: #004a92;
        border-left: 5px solid #004a92;
        padding-left: 12px;
        margin: 30px 0 15px;
    }
    .article-body h3 {
        font-size: 20px;
        color: #222;
        margin: 25px 0 12px;
        font-weight: bold;
    }
    .article-body h4 {
        font-size: 18px;
        color: #444;
        margin: 20px 0 10px;
        text-decoration: underline; /* 辅助区分 */
    }

    /* 3. 图片自动居中及描述文字 */
    .article-body img {
        display: block;
        max-width: 100%;
        height: auto;
        margin: 20px auto;        /* 自动居中 */
        border-radius: 4px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    .img-caption {
        display: block;
        text-align: center;
        font-size: 14px;
        color: #666;
        margin-top: -10px;
        margin-bottom: 20px;
    }

    /* 4. 有序列表数字样式 */
    .article-body ol {
        padding-left: 25px;
        margin: 15px 0;
    }
    .article-body ol li {
        list-style-type: decimal; /* 显示数字 */
        margin-bottom: 8px;
        padding-left: 5px;
    }
    .article-body ol li::marker {
        color: #004a92;           /* 数字颜色与品牌色一致 */
        font-weight: bold;
    }
	
	
	/* 基础样式调整 */
.meta-info {
    display: flex;
    flex-wrap: wrap; /* 允许在空间不足时换行 */
    justify-content: center; /* 水平居中 */
    align-items: center; /* 垂直居中 */
    gap: 15px; /* 元素之间的间距 */
    color: #888;
    font-size: 14px;
    margin-bottom: 20px;
    text-align: center;
}

/* 移动端特定优化 */
@media (max-width: 768px) {
    .meta-info {
        flex-direction: row; /* 强制横向排列 */
        justify-content: center;
        gap: 10px; /* 手机端间距稍微缩小 */
    }
    
    /* 隐藏或调整移动端的字体工具（通常移动端不需要调整字号，若需保留可删掉此行） */
    .font-tools {
        display: none; 
    }
}



/* 顶部进度条容器 */
#progressContainer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 9999;
}

/* 进度条本体 - 使用高服机械的主色调 */
#progressBar {
    height: 100%;
    background: #ffcc00; /* 使用亮黄色，在深蓝导航栏下方更显眼 */
    width: 0%;
    transition: width 0.1s ease;
}

/* 返回顶部按钮样式 */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background-color: #004a92;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0; /* 默认隐藏 */
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    font-size: 20px;
    font-weight: bold;
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
}

#backToTop:hover {
    background-color: #003366;
    transform: translateY(-5px);
}

/* 针对手机端的适配 */
@media (max-width: 768px) {
    #backToTop {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}






/* 容器 */
.sticky-action-bar {
    position: fixed;
    right: 20px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 9999;
}

/* 通用项样式 */
.action-item {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    backdrop-filter: blur(5px); /* 毛玻璃效果 */
}

/* 拨号：品牌绿 */
.phone-btn {
    background-color: #28a745;
}

/* 返回顶部：高服蓝 */
.top-btn {
    background-color: #004a92;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

/* 按钮显示状态 */
.top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 悬停动画 */
.action-item:hover {
    transform: scale(1.1);
}

.action-item svg {
    width: 24px;
    height: 24px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .sticky-action-bar {
        right: 15px;
        bottom: 20px;
        gap: 8px;
    }
    .action-item {
        width: 44px;
        height: 44px;
    }
}