body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: #f5f5f5;
            color: #333;
        }
        
        .container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }
/* ==========================================
           【顶部导航栏】
           ========================================== */
        .top-nav {
            background: linear-gradient(90deg, #ff6b00 0%, #ff8c00 100%);
            height: 40px;
            box-shadow: 0 2px 8px rgba(255,107,0,0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        
        .nav-logo {
            font-size: 24px;
            font-weight: 800;
            color: white;
            text-decoration: none;
        }
        
        .nav-menu {
            display: flex;
            gap: 30px;
            list-style: none;
        }
        
        .nav-menu li a {
            color: white;
            text-decoration: none;
            font-size: 16px;
            font-weight: 600;
            transition: color 0.3s;
        }
        
        .nav-menu li a:hover {
            color: #fff3cd;
        }
        
        .nav-publish {
            background: white;
            color: #ff6b00;
            padding: 5px 10px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 700;
            transition: all 0.3s;
        }
        
        .nav-publish:hover {
            background: #fff3cd;
            transform: scale(1.05);
        }
        
/* ==========================================
           【文章区】
           ========================================== */
        .article-section {
            background: white;
            /*border-radius: 8px;*/
            padding: 20px;
            /*margin: 20px 0;*/
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .section-title {
                margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ff7200;
        }
            /*text-align: center;*/
            margin-bottom: 20px;
        }
        
        .section-title h2 {
            font-size: 22px;
            color: #ff6b00;
            font-weight: 700;
        }
        
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .article-card {
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }
        
        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        
        .card-cover {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        
        .card-content {
            padding: 15px;
        }
        
        .card-title {
            font-size: 16px;
            margin-bottom: 10px;
        }
        
        .card-title a {
            color: #333;
            text-decoration: none;
            font-weight: 600;
        }
        
        .card-title a:hover {
            color: #ff6b00;
        }
        
        .card-desc {
            color: #666;
            font-size: 13px;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #888;
        }
        
        /* ==========================================
           【页脚】
           ========================================== */
        /*.footer {*/
        /*    background: white;*/
        /*    border-radius: 8px;*/
        /*    padding: 20px;*/
        /*    margin: 20px 0;*/
        /*    text-align: center;*/
        /*    box-shadow: 0 2px 10px rgba(0,0,0,0.1);*/
        /*}*/
        
        /* ==========================================
           【返回顶部】
           ========================================== */
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            line-height: 50px;
            background: #ff6b00;
            color: white;
            text-align: center;
            border-radius: 50%;
            font-size: 20px;
            z-index: 9999;
            cursor: pointer;
            display: none;
            box-shadow: 0 4px 15px rgba(255,107,0,0.4);
        }
        
        #backToTop:hover {
            background: #e65c00;
        }