* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #121212;
            color: #e0e0e0;
            line-height: 1.6;
            position: relative;
            overflow-x: hidden;
        }
        
        /* 背景特效容器 */
        #background-effect {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        /* 星空背景 */
        .stars {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at center, #0a0e2a 0%, #000000 70%);
        }
        
        .star {
            position: absolute;
            background-color: #fff;
            border-radius: 50%;
        }
        
        /* 动态粒子 */
        .particle {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
        }
        
        /* 光晕效果 */
        .glow {
            position: absolute;
            border-radius: 50%;
            filter: blur(40px);
            opacity: 0.3;
            pointer-events: none;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        
        /* 头部样式 */
        header {
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(22, 33, 62, 0.9) 100%);
            padding: 20px 0;
            border-bottom: 2px solid #0f3460;
            backdrop-filter: blur(10px);
            position: relative;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo h1 {
            font-size: 28px;
            color: #4ecca3;
            text-shadow: 0 0 10px rgba(78, 204, 163, 0.5);
            margin-left: 10px;
        }
        
        .logo-icon {
            font-size: 32px;
            color: #4ecca3;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 25px;
        }
        
        nav ul li a {
            color: #e0e0e0;
            text-decoration: none;
            font-size: 16px;
            padding: 8px 15px;
            border-radius: 4px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        nav ul li a:hover {
            background-color: #0f3460;
            color: #4ecca3;
        }
        
        /* 主要内容区 */
        .main-content {
            display: flex;
            margin: 30px 0;
            gap: 30px;
        }
        
        .sidebar {
            flex: 1;
            background: rgba(30, 30, 46, 0.8);
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
        }
        
        .content {
            flex: 3;
        }
        
        /* 公告区域 */
        .announcements {
            background: rgba(30, 30, 46, 0.8);
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
        }
        
        .section-title {
            color: #4ecca3;
            font-size: 22px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #0f3460;
        }
        
        .announcement-list {
            list-style: none;
        }
        
        .announcement-item {
            padding: 5px;
            margin-bottom: 10px;
            background: rgba(42, 42, 58, 0.8);
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }
        
        .announcement-item:hover {
            background: rgba(51, 51, 68, 0.8);
            border-left: 4px solid #4ecca3;
            transform: translateX(5px);
        }
        
        .announcement-title {
            font-size: 16px;
            font-weight: bold;
            color: #e0e0e0;
            margin-bottom: 5px;
        }
        
        .announcement-date {
            font-size: 12px;
            color: #888;
        }
        
        /* 弹窗样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.85);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background: rgba(30, 30, 46, 0.95);
            width: 85%;
            height: 85%;
            max-width: 1100px;
            max-height: 800px;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 0 40px rgba(78, 204, 163, 0.4);
            position: relative;
            animation: modalFadeIn 0.3s ease;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            border: 1px solid #0f3460;
            backdrop-filter: blur(10px);
        }
        
        @keyframes modalFadeIn {
            from { opacity: 0; transform: translateY(-50px) scale(0.9); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }
        
        .close-btn {
            position: absolute;
            top: 20px;
            right: 25px;
            font-size: 32px;
            color: #aaa;
            cursor: pointer;
            transition: all 0.3s;
            z-index: 10;
            background: rgba(30, 30, 46, 0.9);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            border: 1px solid #0f3460;
        }
        
        .close-btn:hover {
            color: #4ecca3;
            background: rgba(30, 30, 46, 1);
            transform: scale(1.1);
        }
        
        .modal-header {
            padding-bottom: 20px;
            border-bottom: 2px solid #0f3460;
            margin-bottom: 20px;
        }
        
        .modal-title {
            color: #4ecca3;
            font-size: 28px;
            margin-bottom: 10px;
            text-shadow: 0 0 10px rgba(78, 204, 163, 0.3);
        }
        
        .modal-date {
            color: #aaa;
            font-size: 18px;
        }
        
        .modal-body {
            line-height: 1.8;
            overflow-y: auto;
            padding-right: 15px;
            flex: 1;
            font-size: 17px;
        }
        
        .modal-body h3 {
            color: #4ecca3;
            margin: 20px 0 10px 0;
            font-size: 22px;
        }
        
        .modal-body h4 {
            color: #e0e0e0;
            margin: 15px 0 8px 0;
            font-size: 19px;
        }
        
        .modal-body ul {
            padding-left: 20px;
            margin: 10px 0;
        }
        
        .modal-body li {
            margin-bottom: 8px;
        }
        
        .modal-body::-webkit-scrollbar {
            width: 10px;
        }
        
        .modal-body::-webkit-scrollbar-track {
            background: #2a2a3a;
            border-radius: 6px;
        }
        
        .modal-body::-webkit-scrollbar-thumb {
            background: #4ecca3;
            border-radius: 6px;
        }
        
        /* 导航弹窗内容样式 */
        .nav-modal-content {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }
        
        .nav-item {
            background: rgba(42, 42, 58, 0.8);
            border-radius: 10px;
            padding: 25px;
            transition: all 0.3s ease;
            border-left: 5px solid #4ecca3;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .nav-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        
        .nav-item-title {
            color: #4ecca3;
            font-size: 20px;
            margin-bottom: 12px;
        }
        
        .nav-item-desc {
            color: #aaa;
            font-size: 16px;
            margin-bottom: 18px;
            line-height: 1.6;
        }
        
        .nav-item-btn {
            display: inline-block;
            background: #4ecca3;
            color: #121212;
            padding: 10px 18px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: bold;
            transition: all 0.3s;
            font-size: 15px;
        }
        
        .nav-item-btn:hover {
            background: #3db993;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        /* 游戏展示区 */
        .game-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .game-card {
            background: rgba(30, 30, 46, 0.8);
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            backdrop-filter: blur(10px);
        }
        
        .game-card:hover {
            transform: translateY(-10px);
        }
        
        .game-img {
            height: 80px;
            background: linear-gradient(135deg, #0f3460, #4ecca3);
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
            font-size: 18px;
        }
        
        .game-info {
            padding: 15px;
        }
        
        .game-title {
            font-size: 18px;
            margin-bottom: 10px;
            color: #e0e0e0;
        }
        
        .game-desc {
            font-size: 14px;
            color: #aaa;
            margin-bottom: 15px;
        }
        
        .play-btn {
            display: inline-block;
            background: #4ecca3;
            color: #121212;
            padding: 8px 15px;
            border-radius: 4px;
            text-decoration: none;
            font-weight: bold;
            transition: background 0.3s;
            cursor: pointer;
        }
        
        .play-btn:hover {
            background: #3db993;
        }
        
        /* 页脚 */
        footer {
            background: rgba(26, 26, 46, 0.9);
            padding: 30px 0;
            margin-top: 50px;
            border-top: 2px solid #0f3460;
            backdrop-filter: blur(10px);
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
        }
        
        .footer-section {
            flex: 1;
        }
        
        .footer-section h3 {
            color: #4ecca3;
            margin-bottom: 15px;
            font-size: 18px;
        }
        
        .footer-section p, .footer-section a {
            color: #aaa;
            margin-bottom: 10px;
            display: block;
            text-decoration: none;
        }
        
        .footer-section a:hover {
            color: #4ecca3;
        }
        
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #0f3460;
            color: #666;
            font-size: 14px;
        }
        
        /* 数据容器 */
        .announcement-data, .nav-data, .game-data {
            display: none;
        }
        
        /* 游戏启动弹窗样式 */
        .game-launch-modal {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 30px;
        }
        
        .game-launch-icon {
            font-size: 80px;
            margin-bottom: 20px;
            color: #4ecca3;
        }
        
        .game-launch-title {
            font-size: 32px;
            color: #4ecca3;
            margin-bottom: 15px;
        }
        
        .game-launch-desc {
            font-size: 18px;
            color: #aaa;
            margin-bottom: 30px;
            max-width: 600px;
        }
        
        .game-launch-progress {
            width: 100%;
            max-width: 500px;
            height: 10px;
            background: #2a2a3a;
            border-radius: 5px;
            margin-bottom: 20px;
            overflow: hidden;
        }
        
        .game-launch-progress-bar {
            height: 100%;
            background: #4ecca3;
            width: 0%;
            transition: width 0.3s ease;
        }
        
        .game-launch-status {
            font-size: 16px;
            color: #aaa;
            margin-bottom: 30px;
        }
        
        .game-launch-btn {
            background: #4ecca3;
            color: #121212;
            border: none;
            padding: 12px 30px;
            font-size: 18px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
            margin-top: 10px;
        }
        
        .game-launch-btn:hover {
            background: #3db993;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .game-launch-btn:disabled {
            background: #666;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        /* 侧边栏游戏按钮布局 */
        .sidebar-games {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 20px;
        }
        
        .sidebar-game-btn {
            background: rgba(42, 42, 58, 0.8);
            border: none;
            border-radius: 6px;
            padding: 12px 15px;
            color: #e0e0e0;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            border-left: 3px solid #4ecca3;
        }
        
        .sidebar-game-btn:hover {
            background: rgba(51, 51, 68, 0.8);
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
            }
            
            nav ul {
                margin-top: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            nav ul li {
                margin: 5px;
            }
            
            .main-content {
                flex-direction: column;
            }
            
            .footer-content {
                flex-direction: column;
            }
            
            .footer-section {
                margin-bottom: 20px;
            }
            
            .modal-content {
                width: 92%;
                height: 85%;
                padding: 20px;
            }
            
            .modal-title {
                font-size: 22px;
            }
            
            .modal-body {
                font-size: 15px;
            }
            
            .nav-modal-content {
                grid-template-columns: 1fr;
            }
            
            .game-launch-modal {
                padding: 20px;
            }
            
            .game-launch-title {
                font-size: 24px;
            }
            
            .game-launch-desc {
                font-size: 16px;
            }
            
            .sidebar-games {
                grid-template-columns: 1fr;
            }
        }