/* CSS Document */

    /* 全局样式 */
        :root {
            --primary-color: #1a73e8;
            --secondary-color: #0d47a1;
            --accent-color: #ff9800;
            --light-color: #f5f9ff;
            --dark-color: #333;
            --gray-color: #757575;
            --light-gray: #f0f0f0;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            color: var(--dark-color);
            line-height: 1.6;
            background-color: #f8f9fa;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        section {
            padding: 80px 0;
        }
        
        h1, h2, h3, h4 {
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        
        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.2;
        }
        
        h2 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        
        h2:after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            margin: 15px auto 0;
            border-radius: 2px;
        }
        
        h3 {
            font-size: 1.5rem;
        }
        
        p {
            margin-bottom: 1rem;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            text-align: center;
        }
        
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        
        .btn-accent {
            background-color: var(--accent-color);
        }
        
        .btn-accent:hover {
            background-color: #e68900;
        }
        
        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
        }
        
        .btn-outline:hover {
            background-color: var(--primary-color);
            color: white;
        }
        
        .card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 30px;
            transition: var(--transition);
            height: 100%;
        }
        
        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
        }
        
        .text-center {
            text-align: center;
        }
        
        .section-subtitle {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
            color: var(--gray-color);
            font-size: 1.1rem;
        }
        
        /* 英雄区域样式 */
        .hero {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero:before {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: cover;
            background-position: center;
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .hero h1 {
            color: white;
            margin-bottom: 25px;
        }
        
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 35px;
            opacity: 0.9;
        }
        
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        /* 服务区域样式 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        
        .service-card {
            display: flex;
            flex-direction: column;
        }
        
        .service-card h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .service-icon {
            width: 40px;
            height: 40px;
            background: var(--light-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            color: var(--primary-color);
            font-weight: bold;
        }
        
        .service-card .price {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-color);
            margin: 15px 0;
        }
        
        .service-card .features {
            list-style: none;
            margin: 20px 0;
            flex-grow: 1;
        }
        
        .service-card .features li {
            padding: 8px 0;
            border-bottom: 1px dashed #eee;
            position: relative;
            padding-left: 25px;
        }
        
        .service-card .features li:last-child {
            border-bottom: none;
        }
        
        .service-card .features li:before {
           content: "-";
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: 0;
        }
        
        .service-card .actions {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
        }
        
        .service-card .actions .btn {
            flex: 1;
            margin: 0 5px;
        }
        
        /* 平台优势样式 */
        .advantages {
            background-color: var(--light-color);
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        
        .advantage-card {
            text-align: center;
            padding: 40px 25px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
        }
        
        .advantage-icon {
            width: 80px;
            height: 80px;
            background: var(--light-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2.2rem;
            color: var(--primary-color);
        }
        
        /* 学科领域样式 */
        .disciplines {
            background: white;
        }
        
        .disciplines-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
        }
        
        .discipline-item {
            background: var(--light-color);
            padding: 15px;
            border-radius: var(--border-radius);
            text-align: center;
            transition: var(--transition);
        }
        
        .discipline-item:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        
        /* 学术团队样式 */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .team-member {
            text-align: center;
        }
        
        .member-avatar {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .member-avatar:after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
        }
        
        .member-name {
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .member-title {
            color: var(--gray-color);
            margin-bottom: 15px;
        }
        
        /* 期刊资源样式 */
        .journals {
            background-color: var(--light-color);
        }
        
        .journals-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        
        .journal-card {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            text-align: center;
            transition: var(--transition);
        }
        
        .journal-card:hover {
            transform: translateY(-5px);
        }
        
        .journal-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        /* 翻译团队样式 */
        .translation-team {
            background: white;
        }
        
        .translation-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        
        .translation-feature {
            display: flex;
            align-items: flex-start;
            padding: 20px;
            background: var(--light-color);
            border-radius: var(--border-radius);
        }
        
        .translation-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        /* 服务承诺样式 */
        .commitments {
            background-color: var(--light-color);
        }
        
        .commitment-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        
        .commitment-item {
            display: flex;
            align-items: flex-start;
            padding: 25px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        
        .commitment-item:hover {
            transform: translateY(-5px);
        }
        
        .commitment-icon {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        /* 页脚样式 */
        footer {
            background: linear-gradient(135deg, var(--secondary-color), #051937);
            color: white;
            padding: 70px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.4rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background: var(--accent-color);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #ccc;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .services-grid,
            .advantages-grid,
            .team-grid,
            .journals-grid,
            .translation-features,
            .commitment-list,
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .disciplines-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            
            h2 {
                font-size: 1.8rem;
            }
            
            .hero {
                padding: 80px 0;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .hero-buttons .btn {
                width: 100%;
                max-width: 300px;
                margin-bottom: 10px;
            }
            
            .service-card .actions {
                flex-direction: column;
            }
            
            .service-card .actions .btn {
                margin: 5px 0;
            }
            
            .disciplines-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 480px) {
            section {
                padding: 60px 0;
            }
            
            .container {
                padding: 0 15px;
            }
            
            .services-grid,
            .advantages-grid,
            .team-grid,
            .journals-grid,
            .translation-features,
            .commitment-list,
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .disciplines-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }