/* 全局样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", "SimHei", sans-serif;
        }

        /* 全局变量定义 */
        :root {
            --primary-color: #c8102e; /* 主色调-大红色 */
            --secondary-color: #8b0000; /* 深红色 */
            --text-color: #333; /* 主要文字颜色 */
            --light-text: #666; /* 次要文字颜色 */
            --bg-color: #f8f8f8; /* 背景色 */
            --white: #fff; /* 白色 */
            --border-color: #e0e0e0; /* 边框色 */
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* 阴影 */
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
        }

        /* 容器样式 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部样式 */
        header {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 28px;
            font-weight: bold;
            text-decoration: none;
            color: var(--white);
        }

        nav ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }

        nav ul li {
            margin-left: 25px;
        }

        nav ul li a {
            color: var(--white);
            text-decoration: none;
            font-size: 16px;
            transition: all 0.3s ease;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }

        nav ul li a:hover {
            border-bottom: 2px solid var(--white);
        }

        /* 英雄区样式 */
        .hero {
            background: linear-gradient(rgba(200, 16, 46, 0.8), rgba(139, 0, 0, 0.8)), url('hero-bg.jpg') center/cover no-repeat;
            color: var(--white);
            padding: 100px 0;
            text-align: center;
        }

        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: 20px;
            margin-bottom: 30px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-block;
            background-color: var(--white);
            color: var(--primary-color);
            padding: 12px 30px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            font-size: 18px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .btn:hover {
            background-color: #f0f0f0;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* 广告引流区域样式 - 新增 */
        #ad-banner {
            background-color: var(--white);
            padding: 60px 0;
        }

        .ad-section-title {
            text-align: center;
            margin-bottom: 40px;
            color: var(--primary-color);
            font-size: 28px;
            font-weight: bold;
        }

        .ad-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .ad-item {
            text-align: center;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }

        .ad-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .ad-item a {
            text-decoration: none;
            color: inherit;
            display: block;
        }

        .ad-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .ad-desc {
            padding: 15px;
        }

        .ad-name {
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 5px;
            font-size: 16px;
        }

        .ad-style {
            color: var(--light-text);
            font-size: 14px;
            line-height: 1.4;
        }


        /* 通用板块样式 */
        section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
        }

        .section-title h2 {
            font-size: 36px;
            color: var(--primary-color);
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--primary-color);
        }

        /* 版本介绍样式 */
        .version {
            background-color: var(--white);
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 30px;
        }

        .version-content {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            align-items: center;
        }

        .version-text {
            flex: 1;
            min-width: 300px;
        }

        .version-img {
            flex: 1;
            min-width: 300px;
            text-align: center;
        }

        .version-img img {
            max-width: 100%;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }

        /* 职业介绍样式 */
        .classes {
            background-color: var(--white);
            padding: 40px 0;
        }

        .classes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .class-card {
            background-color: var(--bg-color);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }

        .class-card:hover {
            transform: translateY(-10px);
        }

        .class-card img {
            width: 100px;
            height: 100px;
            margin-bottom: 20px;
            border-radius: 50%;
            object-fit: cover;
        }

        .class-card h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 24px;
        }

        /* 地图介绍样式 */
        .maps {
            padding: 80px 0;
        }

        .maps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .map-item {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .map-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .map-item:hover img {
            transform: scale(1.05);
        }

        .map-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background-color: rgba(200, 16, 46, 0.8);
            color: var(--white);
            padding: 15px;
            text-align: center;
        }

        /* 视频和截图样式 */
        .media {
            background-color: var(--white);
            padding: 80px 0;
        }

        .media-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 40px;
        }

        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }

        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: 0;
        }

        .screenshots {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }

        .screenshots img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            border-radius: 5px;
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: transform 0.3s ease;
        }

        .screenshots img:hover {
            transform: scale(1.05);
        }

        /* 系统介绍样式 */
        .systems {
            padding: 80px 0;
        }

        .systems-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .system-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            border-left: 5px solid var(--primary-color);
        }

        .system-card h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 22px;
        }

        /* 更新记录和公告样式 */
        .news {
            background-color: var(--white);
            padding: 80px 0;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 40px;
        }

        .news-list {
            list-style: none;
        }

        .news-list li {
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-list li a {
            color: var(--text-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .news-list li a:hover {
            color: var(--primary-color);
        }

        .news-date {
            color: var(--light-text);
            font-size: 14px;
        }

        /* 下载区域样式 */
        .download {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 80px 0;
            text-align: center;
        }

        .download-card {
            background-color: var(--white);
            color: var(--text-color);
            border-radius: 10px;
            padding: 40px;
            max-width: 600px;
            margin: 0 auto;
            box-shadow: var(--shadow);
        }

        .download-btn {
            background-color: var(--primary-color);
            color: var(--white);
            margin-top: 20px;
        }

        .download-btn:hover {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        /* 页脚样式 */
        footer {
            background-color: #333;
            color: var(--white);
            padding: 40px 0;
            text-align: center;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .footer-column {
            flex: 1;
            min-width: 200px;
            margin-bottom: 20px;
            padding: 0 15px;
        }

        .footer-column h3 {
            margin-bottom: 20px;
            font-size: 18px;
            color: var(--primary-color);
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column ul li {
            margin-bottom: 10px;
        }

        .footer-column ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-column ul li a:hover {
            color: var(--primary-color);
        }

        .copyright {
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 14px;
            color: #ccc;
        }

        /* 响应式样式 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 36px;
            }
            
            .section-title h2 {
                font-size: 30px;
            }
            
            .media-grid {
                grid-template-columns: 1fr;
            }
            
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            nav ul {
                margin-top: 20px;
                justify-content: center;
            }
            
            nav ul li {
                margin: 0 10px;
                margin-bottom: 10px;
            }
            
            .hero {
                padding: 60px 0;
            }
            
            .hero h1 {
                font-size: 28px;
            }
            
            .hero p {
                font-size: 16px;
            }
            
            section {
                padding: 40px 0;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 10px;
            }
            
            .version {
                padding: 20px;
            }
            
            .download-card {
                padding: 20px;
            }
        }

        /* 回到顶部按钮 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--primary-color);
            color: var(--white);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            box-shadow: var(--shadow);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
        }

        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }