/* 贯通型全屏Banner - 调整顶部内边距，适配导航栏 */
        .banner2 {
            width: 100%;
            height: auto;
            min-height: 436px;
            background: url("../images/snow.jpg") center/cover no-repeat;
            background-color: #f0f5ff;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: var(--white);
            text-align: center;
            padding: 0 20px;
            position: relative;
            overflow: hidden;
            /* 顶部预留导航栏高度，避免内容被遮挡 */
            padding-top: 75px;
        }

        /* 大幅增强：顶部纯白色渐隐效果（高度从120px → 300px） */
        .banner2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 300px;
            background: linear-gradient(to bottom, var(--white) 0%, transparent 100%);
            z-index: 1;
        }

        /* 图片向下渐隐过渡（完美融合） */
        .banner2::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light) 0%, transparent 100%);
            z-index: 1;
        }

        .banne2r-content {
            position: relative;
            z-index: 2;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
        }

        .banner2 h1 {
            font-size: 38px;
            margin-bottom: 10px;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .banner2 p {
            font-size: 17px;
            opacity: 0.95;
        }


 /* 二级页面核心布局：统一无侧边栏，仅保留中间内容区 */
        .page-container {
            width: 76%;
            max-width: 1400px;
            margin: 30px auto 60px;
        }

        /* 主内容区 - 与其他页面统一内边距、阴影、圆角 */
        .main-content {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px;
        }

        .content-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-light);
            position: relative;
        }

        .content-title::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 80px;
            height: 2px;
            background: var(--primary-color);
        }

        /* 通知公告条目列表 - 与新闻列表交互/样式统一 */
        .doc-list {
            width: 100%;
        }

        .doc-item {
            border-bottom: 1px solid #f0f0f0;
        }

        .doc-item:last-child {
            border-bottom: none;
        }

        .doc-item a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 15px;
            width: 100%;
            transition: var(--transition);
            border-radius: 8px;
        }

        .doc-item a:hover {
            background: var(--primary-light);
            padding-left: 20px;
        }

        .doc-item h4 {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .doc-item a:hover h4 {
            color: var(--primary-color);
            font-weight: 600;
        }

        .doc-date {
            color: var(--text-gray);
            font-size: 14px;
            white-space: nowrap;
            margin-left: 20px;
            font-weight: 500;
        }




  /* 三级页面核心内容区（增加装饰细节）- 顶部线条改为纯蓝 */
        .detail-container {
            width: 76%;
            max-width: 1400px;
            margin: 0 auto 60px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 50px 60px;
            position: relative;
            overflow: hidden;
        }

        .detail-container::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 6px;
            background: var(--primary-color); /* 纯蓝主题色，移除渐变 */
        }

        .detail-container::after {
            content: "";
            position: absolute;
            top: 30px;
            right: 30px;
            width: 120px;
            height: 120px;
            background: var(--primary-light);
            border-radius: 50%;
            opacity: 0.2;
            z-index: 0;
        }

        /* 文档头部信息（增加装饰） */
        .doc-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 2px solid var(--primary-light);
            position: relative;
            z-index: 1;
        }

        .doc-header::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 2px;
            background: var(--primary-color);
            border-radius: var(--radius-xs);
        }

        .doc-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 15px;
            line-height: 1.4;
            position: relative;
            display: inline-block;
            padding: 0 20px;
        }

        .doc-title::before,
        .doc-title::after {
            content: "●";
            color: var(--accent-color);
            margin: 0 10px;
            font-size: 16px;
        }

        .doc-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 25px;
            font-size: 14px;
            color: var(--text-light);
        }

        .doc-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--primary-light);
            border-radius: 20px;
        }

        .doc-meta span::before {
            content: "";
            width: 14px;
            height: 14px;
            opacity: 0.7;
            display: inline-block;
            background-size: contain;
            background-repeat: no-repeat;
        }

        .doc-date::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230047AB'%3E%3Cpath d='M19 3h-1V1h-2v2H8V1H6v2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V8h14v11zM9 10H7v2h2v-2zm4 0h-2v2h2v-2zm4 0h-2v2h2v-2zm-8 4H7v2h2v-2zm4 0h-2v2h2v-2zm4 0h-2v2h2v-2z'/%3E%3C/svg%3E");
        }

        .doc-source::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230047AB'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z'/%3E%3C/svg%3E");
        }

        /* 核心编辑区域（增加装饰细节） */
        .doc-content {
            font-size: 16px;
            line-height: 2;
            color: var(--text-dark);
            position: relative;
            z-index: 1;
        }

        .doc-content p {
            margin-bottom: 20px;
            text-align: justify;
            padding: 0 10px;
        }

        .doc-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-color);
            margin: 30px 0 15px;
            padding-left: 12px;
            border-left: 4px solid var(--primary-color);
            background: var(--primary-light);
            padding: 8px 15px;
            border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
        }

        .doc-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin: 25px 0 12px;
            color: var(--primary-dark);
            padding-left: 10px;
            border-left: 3px solid var(--accent-color);
        }

        .doc-content ul,
        .doc-content ol {
            margin: 15px 0 25px 30px;
            padding: 10px 20px;
            background: var(--accent-light);
            border-radius: var(--radius-sm);
        }

        .doc-content ul {
            list-style: disc;
            border-left: 3px solid var(--accent-color);
        }

        .doc-content ol {
            list-style: decimal;
            border-left: 3px solid var(--primary-color);
        }

        .doc-content li {
            margin-bottom: 10px;
            padding-left: 10px;
        }

        .doc-content a {
            color: var(--primary-color);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .doc-content a:hover {
            color: var(--primary-dark);
            text-decoration: none;
            background: var(--primary-light);
            padding: 2px 4px;
            border-radius: var(--radius-xs);
        }

        .doc-content img {
            max-width: 100%;
            border-radius: var(--radius-sm);
            margin: 20px 0;
            display: block;
            margin-left: auto;
            margin-right: auto;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            border: 3px solid var(--white);
        }

        /* 增强版返回按钮 */
        .back-btn {
            display: inline-block;
            margin-top: 40px;
            padding: 12px 30px;
            background: linear-gradient(135deg, var(--primary-light) 0%, #D6E4FF 100%);
            color: var(--primary-color);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid var(--primary-color);
            position: relative;
            overflow: hidden;
        }

        .back-btn::before {
            content: "←";
            margin-right: 8px;
            font-weight: 700;
        }

        .back-btn:hover {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 71, 171, 0.3);
        }


.breadcrumb2 {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 20px;
    font-size: 14px;
    color: var(--text-gray);
    padding: 12px 20px;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}





/* 项目中心核心布局 - 一行四模块（修改） */
        .project-container {
            width: 76%;
            max-width: 1400px;
            margin: 30px auto 60px;
            display: grid;
            grid-template-columns: repeat(4, 1fr); /* 改为一行四列 */
            gap: 30px; /* 模块间距 */
        }

        /* 项目模块卡片样式 */
        .project-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            border-top: 4px solid var(--primary-color);
        }

        .project-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        /* 模块图片区域 */
        .project-img {
            width: 100%;
            height: 200px; /* 图片固定高度 */
            overflow: hidden;
            position: relative;
        }

        .project-img img {
            width: 100%;
            height: 100%;
            object-fit: cover; /* 保持比例填充 */
            transition: var(--transition);
        }

        .project-card:hover .project-img img {
            transform: scale(1.05); /* 悬浮图片放大 */
        }

        /* 图片遮罩文字 */
        .project-img::after {
            content: attr(data-title);
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 12px;
            background: linear-gradient(transparent, rgba(0, 71, 171, 0.8));
            color: var(--white);
            font-size: 18px;
            font-weight: 600;
            text-align: center;
        }

        /* 模块内容区域 */
        .project-content {
            padding: 25px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .project-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--primary-light);
        }

        .project-desc {
            font-size: 15px;
            color: var(--text-gray);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        /* 模块按钮 */
        .project-btn {
            display: inline-block;
            align-self: flex-start;
            padding: 10px 20px;
            background: var(--primary-light);
            color: var(--primary-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            margin-top: auto; /* 按钮靠底 */
        }

        .project-btn:hover {
            background: var(--primary-color);
            color: var(--white);
        }