:root {
            --primary-color: #c62828;
            --primary-dark: #8e0000;
            --primary-light: #ff5f52;
            --secondary-color: #f5f5f5;
            --accent-color: #ffd54f;
            --text-dark: #212121;
            --text-light: #757575;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            background-color: #fafafa;
        }
        
        /* 头部样式 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        
        .navbar-nav .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            padding: 0.8rem 1.2rem;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--primary-color);
        }
        
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 15%;
            width: 70%;
            height: 3px;
            background: var(--primary-color);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        
        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
            background-size: cover;
            background-position: center;
            height: 85vh;
            display: flex;
            align-items: center;
            color: white;
            text-align: center;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 12px 30px;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(198, 40, 40, 0.2);
        }
        
        /* 特色服务 */
        .features {
            padding: 5rem 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--primary-color);
        }
        
        .feature-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.4s ease;
            height: 100%;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(198, 40, 40, 0.15);
        }
        
        .feature-icon {
            background-color: var(--primary-color);
            color: white;
            font-size: 2.5rem;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: -40px auto 20px;
            position: relative;
            z-index: 1;
        }
        
        .feature-content {
            padding: 20px 30px 30px;
            text-align: center;
        }
        
        .feature-content h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        /* 最新文章 */
        .articles {
            padding: 5rem 0;
            background-color: var(--secondary-color);
        }
        
        .article-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(198, 40, 40, 0.1);
        }
        
        .article-img {
            height: 200px;
            overflow: hidden;
        }
        
        .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .article-card:hover .article-img img {
            transform: scale(1.05);
        }
        
        .article-content {
            padding: 25px;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        
        .article-tag {
            background-color: var(--primary-light);
            color: white;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: inline-block;
        }
        
        .article-content h3 {
            margin: 15px 0;
            font-size: 1.4rem;
        }
        
        .article-content h3 a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .article-content h3 a:hover {
            color: var(--primary-color);
        }
        
        .read-more {
            color: var(--primary-color);
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            margin-top: 15px;
        }
        
        .read-more i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        /* 文章标题列表样式 */
        .article-list-section {
            background-color: white;
            padding: 4rem 0;
        }
        
        .article-list-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .article-list-title {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--primary-light);
            position: relative;
        }
        
        .article-list-title::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 100px;
            height: 3px;
            background-color: var(--primary-color);
        }
        
        .article-list {
            list-style: none;
            padding: 0;
        }
        
        .article-list-item {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s ease;
        }
        
        .article-list-item:hover {
            background-color: rgba(198, 40, 40, 0.05);
            transform: translateX(5px);
        }
        
        .article-list-item a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s ease;
        }
        
        .article-list-item a:hover {
            color: var(--primary-color);
        }
        
        .article-date {
            color: var(--text-light);
            font-size: 0.9rem;
            min-width: 100px;
            text-align: right;
        }
        
        /* 关于我们 */
        .about {
            padding: 5rem 0;
            background-color: var(--secondary-color);
        }
        
        .about-content {
            display: flex;
            align-items: center;
        }
        
        .about-text {
            padding-right: 30px;
        }
        
        .about-text h2 {
            color: var(--primary-color);
            margin-bottom: 25px;
        }
        
        .about-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        /* 页脚 */
        footer {
            background-color: #1a1a1a;
            color: #ccc;
            padding: 4rem 0 2rem;
        }
        
        .footer-title {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background-color: var(--primary-color);
        }
        
        .footer-links a {
            display: block;
            color: #aaa;
            text-decoration: none;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary-light);
        }
        
        .contact-info {
            margin-bottom: 15px;
            display: flex;
        }
        
        .contact-info i {
            color: var(--primary-color);
            margin-right: 15px;
            font-size: 1.2rem;
            min-width: 25px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: #333;
            color: white;
            border-radius: 50%;
            margin-right: 10px;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            background-color: var(--primary-color);
            transform: translateY(-5px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #333;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .about-content {
                flex-direction: column;
            }
            
            .about-text {
                padding-right: 0;
                margin-bottom: 30px;
            }
        }
        
        @media (max-width: 768px) {
            .hero {
                height: 70vh;
            }
            
            .hero h1 {
                font-size: 2.3rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .article-list-item {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .article-date {
                margin-top: 5px;
                text-align: left;
            }
        }
        
        @media (max-width: 576px) {
            .hero {
                height: 60vh;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .section-title h2 {
                font-size: 1.7rem;
            }
        }