/* 全局重置与基础变量（统一色彩体系） */
        :root {
            --primary-color: #003366; /* 主深蓝（导航/底部备案） */
            --secondary-color: #2563EB; /* 辅助蓝（按钮/装饰条） */
            --hover-color: #004080; /* 交互hover色 */
            --bg-light: #f8fafc; /* 浅背景色 */
            --bg-hover: #f0f5ff; /* 悬浮背景色 */
            --border-color: #e0e6ed; /* 边框色 */
            --text-primary: #333; /* 主文本色 */
            --text-secondary: #666; /* 次文本色 */
            --text-tertiary: #909399; /* 淡文本色 */
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.08); /* 统一阴影 */
            --shadow-deep: 0 4px 16px rgba(0, 0, 0, 0.12); /* 下拉框深阴影 */
            --radius: 8px; /* 统一圆角 */
            --radius-sm: 4px; /* 小圆角 */
            --content-width: 85%; /* 统一内容宽度 */
            --content-max-width: 1400px; /* 最大宽度限制 */
            --transition: all 0.3s ease; /* 统一过渡 */
            --transition-fast: all 0.2s ease; /* 快速过渡 */
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }

        body {
            background-color: var(--bg-light);
            color: var(--text-primary);
            margin-top: 70px; /* 导航占位 */
            line-height: 1.5;
        }
a {
  text-decoration: none; 
}

/* 可选：取消下划线后，保留hover时的下划线（提升交互性） */
a:hover {
  text-decoration: underline; /* hover时重新显示下划线 */
  text-underline-offset: 4px; /* 下划线偏移（更美观） */
}
        /* ---------------- 顶部导航栏（精细下拉核心） ---------------- */
        .header-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 70px; /* 统一导航高度 */
            background-color: var(--primary-color);
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            padding: 0 5%;
            z-index: 999;
        }

        .logo {
            width: 350px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-text {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            cursor: pointer;
        }

        .nav-menu {
            flex: 1;
            display: flex;
            justify-content: center;
            list-style: none;
        }

        .nav-item {
            position: relative;
            margin: 0 20px; /* 统一间距 */
            height: 70px; /* 与导航同高，保证hover区域完整 */
            display: flex;
            align-items: center;
        }

        .nav-item > a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            height: 100%;
            display: flex;
            align-items: center;
            padding: 0 8px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            position: relative;
        }

        /* 一级导航hover下划线动效 */
        .nav-item:hover > a {
            color: var(--bg-hover);
            border-bottom: 2px solid var(--secondary-color);
        }

           /* ===================== 轮播图样式 ===================== */
        .banner-section {
            width: 100%;
            height: 450px; /* 保持原高度 */
            margin: 0 auto 50px;
            position: relative;
            overflow: hidden;
        }

        /* 轮播图容器 */
        .banner-slider {
            width: 100%;
            height: 100%;
            display: flex;
            transition: transform 0.5s ease; /* 轮播过渡动画 */
        }

        /* 单张轮播图 */
        .banner-slide {
            flex: 0 0 100%; /* 每张占100%宽度 */
            width: 100%;
            height: 100%;
            position: relative;
        }

        .banner-slide-img {
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            filter: brightness(0.8);
            transition: var(--transition);
        }

        .banner-section:hover .banner-slide-img {
            transform: scale(1.02);
        }

        /* 轮播图文字 */
        .banner-slide-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: #fff;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
            width: 100%;
            padding: 0 20px;
        }

        .banner-slide-title {
            font-size: 40px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .banner-slide-desc {
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 轮播控制按钮（左右箭头） */
        .banner-control {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 48px;
            height: 48px;
            background-color: rgba(0,0,0,0.3);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: none;
            font-size: 24px;
            transition: var(--transition);
            z-index: 10;
        }

        .banner-control:hover {
            background-color: rgba(0, 51, 102, 0.8);
        }

        .banner-control.prev {
            left: 20px;
        }

        .banner-control.next {
            right: 20px;
        }

        /* 轮播指示器（小圆点） */
        .banner-indicators {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }

        .banner-indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .banner-indicator.active {
            background-color: #fff;
            width: 30px;
            border-radius: 6px; /* 激活时变椭圆，更醒目 */
        }

        /* 响应式适配 */
        @media (max-width: 1200px) {
            .person-list {
                grid-template-columns: repeat(4, 1fr); /* 大屏：一排4个 */
            }
        }

        @media (max-width: 992px) {
            .header-nav .nav-menu {
                display: none;
            }
            .person-list-wrap {
                width: 100%;
            }
            .person-list {
                grid-template-columns: repeat(3, 1fr); /* 平板：一排3个 */
            }
            /* 轮播图响应式 */
            .banner-section {
                height: 300px;
            }
            .banner-slide-title {
                font-size: 28px;
            }
            .banner-slide-desc {
                font-size: 16px;
            }
            .banner-control {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
        }

        @media (max-width: 768px) {
            .person-list {
                grid-template-columns: repeat(2, 1fr); /* 小平板：一排2个 */
            }
        }

        @media (max-width: 480px) {
            .person-list {
                grid-template-columns: 1fr; /* 手机：一排1个 */
            }
            .person-avatar {
                width: 100px;
                height: 100px;
            }
            /* 轮播图手机适配 */
            .banner-section {
                height: 200px;
            }
            .banner-slide-title {
                font-size: 20px;
            }
            .banner-slide-desc {
                font-size: 14px;
            }
            .banner-control {
                display: none; /* 手机端隐藏箭头，仅保留指示器 */
            }
        }

        /* ---------------- 精细下拉菜单样式 ---------------- */
        .subnav {
            position: absolute;
            top: calc(100% + 8px); /* 与导航栏留8px间距 */
            left: 50%;
            transform: translateX(-50%) translateY(10px); /* 初始下移10px，配合淡入 */
            width: 200px; /* 加宽下拉框，更舒展 */
            background: linear-gradient(180deg, var(--hover-color) 0%, var(--primary-color) 100%); /* 渐变背景 */
            border-radius: var(--radius);
            box-shadow: var(--shadow-deep);
            list-style: none;
            display: block;
            opacity: 0; /* 初始透明 */
            visibility: hidden; /* 初始不可见（避免点击） */
            pointer-events: none; /* 初始不可交互 */
            padding: 12px 0; /* 上下内边距 */
            border: 1px solid rgba(255, 255, 255, 0.1); /* 细边框增加质感 */
            z-index: 998;
            transition: 
                transform var(--transition),
                opacity var(--transition),
                visibility var(--transition);
        }

        /* 下拉框三角指示（精细装饰） */
        .subnav::before {
            content: "";
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 16px;
            background: var(--hover-color);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: none;
            border-right: none;
            transform: translateX(-50%) rotate(45deg);
            z-index: -1; /* 三角在下拉框下方 */
        }

        /* 鼠标悬停一级菜单，下拉框显示 */
        .nav-item:hover .subnav {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0); /* 上移至目标位置 */
        }

        /* 下拉菜单项精细样式 */
        .subnav-item {
            position: relative;
            margin: 0 8px; /* 左右间距，与边框留空隙 */
        }

        /* 下拉菜单项分隔线（每2项分隔，最后一项不加） */
        .subnav-item:not(:last-child):nth-child(2n) {
            margin-bottom: 8px;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08); /* 浅分隔线 */
        }

        .subnav-item > a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            font-size: 14px;
            padding: 10px 16px;
            display: block;
            border-radius: var(--radius-sm);
            transition: var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        /* 下拉菜单项hover渐变背景 + 文字高亮 */
        .subnav-item > a::before {
            content: "";
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: var(--transition);
        }

        .subnav-item:hover > a {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            padding-left: 20px; /* 右移文字，增加动效 */
        }

        .subnav-item:hover > a::before {
            left: 100%; /* 渐变背景从左到右滑动 */
        }

        /* 下拉菜单项左侧小指示点（hover显示） */
        .subnav-item > a::after {
            content: "";
            position: absolute;
            left: 8px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 4px;
            background-color: var(--secondary-color);
            border-radius: 50%;
            opacity: 0;
            transition: var(--transition-fast);
        }

        .subnav-item:hover > a::after {
            opacity: 1;
        }

        /* ---------------- 搜索框样式 ---------------- */
        .search-box {
            width: 220px;
            display: flex;
            align-items: center;
            background-color: rgba(255,255,255,0.1);
            border-radius: 20px; /* 统一搜索框圆角 */
            padding: 0 15px;
        }

        .search-input {
            width: 100%;
            height: 36px;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
            outline: none;
        }

        .search-input::placeholder {
            color: rgba(255,255,255,0.7);
        }

        .search-btn {
            height: 30px;
            width: 30px;
            background: transparent;
            color: #fff;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-btn:hover {
            color: var(--bg-hover);
        }

        /* ---------------- 全屏大图展示区 ---------------- */
        .banner-section {
            width: 100%;
            height: 450px; /* 统一banner高度 */
            margin: 0 auto 50px; /* 统一间距 */
            position: relative;
            overflow: hidden;
        }

        .banner-img {
            width: 100%;
            height: 100%;
            background: url("https://picsum.photos/1920/450?random=1") no-repeat center center;
            background-size: cover;
            filter: brightness(0.8); /* 统一亮度 */
            transition: var(--transition);
        }

        .banner-section:hover .banner-img {
            transform: scale(1.02);
        }

        .banner-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: #fff;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
        }

        .banner-title {
            font-size: 40px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .banner-desc {
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ---------------- 统一内容容器（所有模块共用） ---------------- */
        .content-wrapper {
            width: var(--content-width);
            max-width: var(--content-max-width);
            margin: 0 auto 50px; /* 统一模块间距 */
        }

        /* ---------------- 双列列表模块（上） ---------------- */
        .two-col-list {
            display: flex;
            gap: 10px;
            justify-content: center;
        }

        .list-card {
            background-color: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 25px; /* 统一内边距 */
            flex-shrink: 0;
        }

        .list-card.first {
            width: 30%;
            border-left: 0px solid var(--secondary-color);
        }

        .list-card.second {
            width: 69%;
            border-top: 4px solid var(--primary-color);
        }

        /* 统一标题样式 */
        .module-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 15px;
            margin-bottom: 20px;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }

        .module-title h2 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-color);
        }

        .module-title .more-btn {
            padding: 5px 12px;
            border: none;
            border-radius: 4px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }

        /* 不同卡片按钮样式统一 */
        .list-card.first .more-btn {
            background-color: var(--secondary-color);
            color: #fff;
        }

        .list-card.second .more-btn {
            background-color: #fff;
            color: var(--primary-color);
            border: 1px solid var(--primary-color);
        }

        .list-card .more-btn:hover {
            background-color: var(--hover-color);
            color: #fff;
            border-color: transparent;
        }

        /* 标题装饰统一 */
        .list-card.first .module-title::after {
            content: "";
            position: absolute;
            bottom: -6px;
            right: 0;
            width: 12px;
            height: 12px;
            background-color: var(--secondary-color);
            border-radius: 50%;
        }

        .list-card.second .module-title::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 0;
            height: 0;
            border-left: 8px solid var(--primary-color);
            border-top: 8px solid transparent;
            border-bottom: 8px solid transparent;
        }

        /* 列表项样式统一 */
        .article-list {
            list-style: none;
        }

        .article-item {
            padding: 12px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            border-bottom: 1px solid var(--border-color);
        }

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

        .article-item:hover {
            background-color: var(--bg-hover);
            padding-left: 8px;
            border-radius: 4px;
        }

        .article-name {
            font-size: 15px;
            max-width: 80%;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .article-item:hover .article-name {
            color: var(--primary-color);
            font-weight: 600;
        }

        .article-time {
            font-size: 13px;
            color: var(--text-tertiary);
            font-style: italic;
        }

        .list-card.second .article-time {
            font-style: normal;
        }

        /* ---------------- 横向列表模块（中） ---------------- */
        .horizontal-list-card {
            background-color: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 25px;
            border-top: 4px solid var(--secondary-color);
        }

        .horizontal-list-card .module-title::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 25px;
            height: 4px;
            background-color: var(--secondary-color);
            border-radius: 2px;
        }

        .horizontal-article-list {
            list-style: none;
            display: flex;
            gap: 25px;
            overflow-x: auto;
            padding: 10px 0;
            scrollbar-width: thin;
            scrollbar-color: var(--secondary-color) var(--bg-hover);
        }

        .horizontal-article-list::-webkit-scrollbar {
            height: 6px;
        }

        .horizontal-article-list::-webkit-scrollbar-track {
            background: var(--bg-hover);
            border-radius: 3px;
        }

        .horizontal-article-list::-webkit-scrollbar-thumb {
            background: var(--secondary-color);
            border-radius: 3px;
        }

        .horizontal-article-item {
            min-width: 280px;
            max-width: 320px;
            padding: 20px;
            border-radius: var(--radius);
            background-color: var(--bg-light);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .horizontal-article-item:hover {
            background-color: var(--bg-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        .article-main-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-color);
            margin-bottom: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .horizontal-article-item .article-time {
            font-size: 12px;
            color: var(--text-tertiary);
            margin-bottom: 15px;
            display: block;
        }

        .article-btn-group {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .detail-btn, .item-more-btn {
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 12px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }

        .detail-btn {
            background-color: #fff;
            color: var(--primary-color);
            border: 1px solid var(--primary-color);
        }

        .item-more-btn {
            background-color: var(--secondary-color);
            color: #fff;
        }

        .detail-btn:hover {
            background-color: var(--primary-color);
            color: #fff;
        }

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

        /* ---------------- 底部模块 ---------------- */
        .footer {
            background-color: var(--primary-color);
            color: #fff;
            margin-top: 30px;
        }

        /* 快速链接+LOGO区 */
        .footer-top {
            width: var(--content-width);
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: 50px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        /* LOGO放置位 */
        .footer-logo {
            flex: 0 0 200px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .footer-logo-placeholder {
            width: 120px;
            height: 60px;
            border: 2px dashed rgba(255,255,255,0.3);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
            cursor: pointer;
            transition: var(--transition);
        }

        .footer-logo-placeholder:hover {
            border-color: #fff;
            background-color: rgba(255,255,255,0.1);
        }

        .footer-logo-text {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            text-align: center;
        }

        /* 快速链接 */
        .footer-links {
            display: flex;
            flex: 1;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
        }

        .link-group {
            min-width: 120px;
        }

        .link-group h3 {
            font-size: 16px;
            margin-bottom: 15px;
            color: #fff;
            position: relative;
            padding-bottom: 8px;
        }

        .link-group h3::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--secondary-color);
        }

        .link-list {
            list-style: none;
        }

        .link-item {
            margin-bottom: 10px;
        }

        .link-item a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .link-item a:hover {
            color: #fff;
            padding-left: 5px;
        }

        /* 备案信息区 */
        .footer-bottom {
            width: var(--content-width);
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }

        .footer-bottom p {
            margin-bottom: 8px;
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* ---------------- 响应式适配 ---------------- */
        @media (max-width: 992px) {
            :root {
                --content-width: 95%;
            }

            .header-nav {
                padding: 0 3%;
            }

            .nav-menu {
                display: none; /* 移动端隐藏导航，可添加汉堡菜单 */
            }

            .two-col-list {
                flex-direction: column;
                align-items: center;
            }

            .list-card.first, .list-card.second {
                width: 100%;
                margin-bottom: 20px;
            }

            .footer-top {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .footer-logo {
                flex: 1 1 100%;
            }

            .link-group h3::after {
                left: 50%;
                transform: translateX(-50%);
            }
        }