/* --- 全局变量与重置 --- */
        :root {
            --brand-color: #10b981;
            --brand-dark: #059669;
            --text-main: #1f2937;
            --text-sub: #6b7280;
            --text-light: #9ca3af;
            --bg-body: #f3f4f6;
            --card-bg: #ffffff;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --radius-md: 12px;
            --radius-lg: 16px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-body);
            background-image: radial-gradient(#e5e7eb 1px, transparent 1px);
            background-size: 24px 24px;
            color: var(--text-main);
            line-height: 1.6;
        }

        a { text-decoration: none; color: inherit; transition: 0.3s; }
        a:hover { color: var(--brand-color); }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* --- 导航栏 (深色精致版) --- */
        header {
            background: #000000a3;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: 70px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
        }
        
        .nav-wrapper { 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
            width: 100%; 
        }
        
        .logo { 
            color: #fff; 
            font-weight: 800; 
            font-size: 22px; 
            display: flex; 
            align-items: center;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .logo:hover {
            opacity: 0.9;
            transform: translateX(2px);
        }
        
        .logo-icon { 
            width: 36px; 
            height: 36px; 
            background: linear-gradient(135deg, var(--brand-color), #3b82f6); 
            border-radius: 10px; 
            margin-right: 12px; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            color: #fff; 
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
            transition: all 0.3s ease;
        }
        
        .logo:hover .logo-icon {
            transform: rotate(15deg);
            box-shadow: 0 6px 16px rgba(16, 185, 129, 0.6);
        }
        
        .nav-links { 
            display: flex; 
            gap: 6px;
            padding: 6px;
            border-radius: 12px;
        }
        
        .nav-links a { 
            color: white; 
            padding: 10px 20px; 
            font-size: 14px; 
            font-weight: 500; 
            border-radius: 8px;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        
        .nav-links a::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--brand-color);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        
        .nav-links a:hover { 
            color: #fff; 
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }
        
        .nav-links a:hover::before {
            width: 60%;
        }
        
        .nav-links a.active { 
            background: linear-gradient(135deg, var(--brand-color), var(--brand-dark)); 
            color: #fff; 
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
            font-weight: 600;
        }
        
        .nav-links a.active::before {
            width: 0;
        }

        /* --- 面包屑导航 --- */
        .breadcrumb {
            background: #fff;
            padding: 15px 0;
            border-bottom: 1px solid #e5e7eb;
            margin-bottom: 30px;
        }
        .breadcrumb a { font-size: 14px; color: var(--text-sub); }
        .breadcrumb span { margin: 0 8px; color: #d1d5db; }
        .breadcrumb .current { color: var(--brand-color); font-weight: 600; }

        /* --- 核心网格布局 --- */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        /* --- 文章卡片样式 --- */
        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            border: 1px solid #f3f4f6;
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .card-img-wrapper {
            width: 100%;
            padding-top: 60%;
            position: relative;
            background: #eee;
            overflow: hidden;
        }

        .card-img-wrapper img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .article-card:hover .card-img-wrapper img {
            transform: scale(1.08);
        }

        .card-body {
            padding: 16px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .card-title {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            font-size: 12px;
            color: var(--text-light);
            margin-top: auto;
            display: flex;
            justify-content: space-between;
        }

        /* --- 分页样式 --- */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 40px 0;
        }
        .page-item {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-sub);
            transition: all 0.3s;
        }
        .page-item.active {
            background: var(--brand-color);
            color: #fff;
            border-color: var(--brand-color);
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
        }
        .page-item:hover:not(.active) {
            border-color: var(--brand-color);
            color: var(--brand-color);
            transform: translateY(-2px);
        }

        /* --- 底部 Footer --- */
        footer { background: #111827; color: #9ca3af; padding: 80px 0 40px; margin-top: 80px; font-size: 13px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
        .footer-brand h3 { color: #fff; font-size: 20px; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
        .footer-col h4 { color: #fff; margin-bottom: 24px; font-size: 14px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 14px; }
        .footer-col ul li a:hover { color: var(--brand-color); padding-left: 4px; }
        .copyright { text-align: center; padding-top: 30px; border-top: 1px solid #374151; color: #6b7280; }
        /* --- 响应式调整 --- */
        @media (max-width: 1000px) {
            .content-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .content-grid { grid-template-columns: 1fr; }
        }