:root {
            --primary-orange: #FF6B35;
            --primary-orange-dark: #E85A2A;
            --primary-orange-light: #FFF3ED;
            --secondary-gold: #D4A84B;
            --text-dark: #2D3436;
            --text-gray: #636E72;
            --text-light: #B2BEC3;
            --bg-light: #F8F9FA;
            --border-gray: #DFE6E9;
            --success-green: #00B894;
            --danger-red: #E74C3C;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
       
        
        /* 页面头部横幅 */
        .page-header {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.9), rgba(232, 90, 42, 0.9)),
                        url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80') center/cover no-repeat;
            padding: 60px 20px;
            text-align: center;
            color: #fff;
        }
        
        .page-header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .page-header p {
            font-size: 1.1rem;
            opacity: 0.95;
            margin: 0 auto;
        }
        
        /* 主内容区 */
        .main-content {
            flex: 1;
            padding: 40px 0;
        }
        
        /* 搜索筛选区 */
        .filter-section {
            background: #fff;
            border-radius: 16px;
            padding: 25px 30px;
            margin-bottom: 30px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        
        .filter-form {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: flex-end;
        }
        
        .filter-group {
            flex: 1;
            min-width: 200px;
        }
        
        .filter-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-gray);
            margin-bottom: 8px;
        }
        
        .filter-group input,
        .filter-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-gray);
            border-radius: 10px;
            font-size: 0.95rem;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: #fff;
        }
        
        .filter-group input:focus,
        .filter-group select:focus {
            outline: none;
            border-color: var(--primary-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
        }
        
        .filter-buttons {
            display: flex;
            gap: 10px;
        }
        
        .btn-search {
            padding: 12px 30px;
            background: var(--primary-orange);
            color: #fff;
            border: none;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-search:hover {
            background: var(--primary-orange-dark);
        }
        
        .btn-reset {
            padding: 12px 20px;
            background: var(--bg-light);
            color: var(--text-gray);
            border: 1px solid var(--border-gray);
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .btn-reset:hover {
            background: #fff;
            border-color: var(--text-gray);
        }
        
        /* 结果统计 */
        .results-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding: 0 5px;
        }
        
        .results-count {
            font-size: 0.95rem;
            color: var(--text-gray);
        }
        
        .results-count strong {
            color: var(--primary-orange);
            font-weight: 600;
        }
        
        /* 资讯卡片列表 */
        .articles-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .article-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            cursor: pointer;
        }
        
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.1);
        }
        
        .article-image {
            width: 280px;
            min-height: 200px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }
        
        .article-card:hover .article-image img {
            transform: scale(1.05);
        }
        
        .pinned-badge {
            position: absolute;
            top: 15px;
            left: 15px;
            background: linear-gradient(135deg, var(--danger-red), #C0392B);
            color: #fff;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
            box-shadow: 0 2px 10px rgba(231, 76, 60, 0.4);
        }
        
        .article-content {
            flex: 1;
            padding: 25px 30px;
            display: flex;
            flex-direction: column;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 12px;
        }
        
        .article-category {
            background: var(--primary-orange-light);
            color: var(--primary-orange);
            padding: 4px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .article-date {
            color: var(--text-light);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .article-views {
            color: var(--text-light);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .article-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.4;
            transition: color 0.2s;
        }
        
        .article-card:hover .article-title {
            color: var(--primary-orange);
        }
        
        .article-summary {
            font-size: 0.95rem;
            color: var(--text-gray);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .article-footer {
            margin-top: 20px;
            padding-top: 15px;
            border-top: 1px solid var(--border-gray);
        }
        
        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-orange);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: gap 0.2s;
        }
        
        .read-more-btn:hover {
            gap: 12px;
        }
        
        /* 空状态 */
        .empty-state {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        
        .empty-state-icon {
            width: 100px;
            height: 100px;
            background: var(--bg-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .empty-state-icon span {
            font-size: 3rem;
        }
        
        .empty-state h3 {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        
        .empty-state p {
            color: var(--text-gray);
        }
        
        
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .nav-menu li a {
                padding: 20px 8px;
                font-size: 0.85rem;
            }
        }
        
        @media (max-width: 960px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .nav-menu li a {
                padding: 12px 0;
                border-bottom: 1px solid var(--border-gray);
            }
            
            .article-card {
                flex-direction: column;
            }
            
            .article-image {
                width: 100%;
                height: 200px;
            }
            
            .filter-form {
                flex-direction: column;
            }
            
            .filter-group {
                min-width: 100%;
            }
            
            .filter-buttons {
                width: 100%;
            }
            
            .filter-buttons button {
                flex: 1;
            }
        }
        
        @media (max-width: 640px) {
            .navbar-container {
                padding: 10px 15px;
            }
            
            .logo-text {
                font-size: 1.2rem;
            }
            
            .auth-buttons {
                display: none;
            }
            
            .page-header {
                padding: 40px 20px;
            }
            
            .page-header h1 {
                font-size: 1.8rem;
            }
            
            .page-header p {
                font-size: 0.95rem;
            }
            
            .filter-section {
                padding: 20px;
            }
            
            .article-content {
                padding: 20px;
            }
            
            .article-title {
                font-size: 1.1rem;
            }
            
            .results-info {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
            
            .pagination li a,
            .pagination li span {
                min-width: 36px;
                height: 36px;
                padding: 0 10px;
                font-size: 0.85rem;
            }
            
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            
            .footer-brand p {
                margin: 15px auto 0;
            }
            
            .social-icons {
                justify-content: center;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }