* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #6a1b9a;
            --secondary-color: #4a148c;
            --accent-color: #e91e63;
            --bg-color: #121212;
            --card-bg: #1e1e1e;
            --text-primary: #ffffff;
            --text-secondary: #bbbbbb;
            --border-color: #333333;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-primary);
            line-height: 1.6;
            padding-bottom: 20px;
        }

        /* 头部与导航 */
        .header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            padding: 20px 15px;
            text-align: center;
            border-bottom: 3px solid var(--accent-color);
            position: relative;
            overflow: hidden;
        }

        .header::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .logo {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 1px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            margin-bottom: 10px;
            display: block;
        }

        .tagline {
            font-size: 14px;
            opacity: 0.9;
            font-weight: 300;
        }

        /* 主图与下载模块 */
        .hero {
            padding: 25px 15px;
            text-align: center;
            background-color: var(--card-bg);
            margin: 15px;
            border-radius: 12px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            border: 1px solid var(--border-color);
        }

        .game-title {
            font-size: 24px;
            color: var(--accent-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .download-btn {
            display: inline-block;
            background-color: var(--accent-color);
            color: white;
            padding: 15px 40px;
            font-size: 18px;
            font-weight: bold;
            border-radius: 50px;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(233, 30, 99, 0.4);
            transition: transform 0.2s, box-shadow 0.2s;
            margin: 15px 0;
            border: none;
            cursor: pointer;
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 30, 99, 0.6);
        }

        .version-info {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 10px;
        }

        /* 卡片通用样式 */
        .card {
            background-color: var(--card-bg);
            margin: 15px;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            border: 1px solid var(--border-color);
        }

        .card-title {
            font-size: 20px;
            color: var(--primary-color);
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
            font-weight: 700;
        }

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

        .features-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 14px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
        }

        .features-list li:before {
            content: "?";
            color: var(--accent-color);
            font-weight: bold;
            margin-right: 10px;
        }

        /* 教程与参数表格 */
        .steps {
            list-style: none;
        }

        .steps li {
            background-color: rgba(106, 27, 154, 0.1);
            padding: 12px 15px;
            margin-bottom: 10px;
            border-radius: 8px;
            font-size: 14px;
            border-left: 3px solid var(--accent-color);
        }

        .param-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 13px;
            margin-top: 10px;
        }

        .param-table th {
            text-align: left;
            padding: 10px;
            background-color: rgba(106, 27, 154, 0.1);
            color: var(--accent-color);
            font-weight: 600;
        }

        .param-table td {
            padding: 10px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        /* 页脚 */
        .footer {
            text-align: center;
            padding: 20px;
            margin-top: 20px;
            color: var(--text-secondary);
            font-size: 12px;
            border-top: 1px solid var(--border-color);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .header {
                padding: 15px 10px;
            }
            .logo {
                font-size: 22px;
            }
            .game-title {
                font-size: 20px;
            }
            .download-btn {
                width: 100%;
                font-size: 16px;
            }
        }