:root {
            --gold-primary: #f1c40f;
            --gold-secondary: #d4af37;
            --pg-red: #8e0000;
            --pg-dark: #000000;
        }
        
        body { 
            margin: 0; padding: 0; 
            font-family: 'Noto Sans SC', sans-serif; 
            background: radial-gradient(circle at center, #2c0000 0%, #000 100%); 
            color: #fff; 
            overflow-x: hidden; 
        }

        /* 动态背景金币雨效果 */
        .bg-particles {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            pointer-events: none; z-index: 0;
            background: url('/LOGO/电子中框.jpg') repeat;
            opacity: 0.1;
            animation: moveBg 20s linear infinite;
        }
        @keyframes moveBg { from { background-position: 0 0; } to { background-position: 0 1000px; } }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 15px; position: relative; z-index: 1; }

        /* 顶部豪华奖池 */
        .jackpot-wrap {
            padding: 40px 0;
            text-align: center;
            background: linear-gradient(180deg, rgba(142,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
            border-bottom: 1px solid var(--gold-primary);
        }
        .jackpot-title { 
            font-size: 14px; color: var(--gold-primary); 
            text-transform: uppercase; letter-spacing: 4px; 
            margin-bottom: 10px; font-weight: 700;
        }
        .jackpot-num {
            font-size: 64px; font-weight: 900;
            background: linear-gradient(to bottom, #fff 0%, var(--gold-primary) 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            text-shadow: 0 0 30px rgba(241,196,15,0.5);
            font-family: 'Arial Black', sans-serif;
        }

        /* 动态中奖滚动条 */
        .win-ticker {
            background: rgba(0,0,0,0.8);
            border-top: 1px solid #333;
            border-bottom: 1px solid #333;
            padding: 12px 0;
            overflow: hidden;
        }
        .ticker-inner { display: flex; animation: scrollWin 40s linear infinite; }
        .win-item { 
            white-space: nowrap; padding: 0 40px; 
            font-size: 15px; display: flex; align-items: center; gap: 10px;
        }
        .win-item b { color: var(--gold-primary); }
        .win-item .multiplier { 
            background: var(--pg-red); color: #fff; 
            padding: 2px 8px; border-radius: 4px; font-size: 12px;
        }
        @keyframes scrollWin { from { transform: translateX(0); } to { transform: translateX(-100%); } }

        /* 英雄区：海报风格 */
        .hero-section {
            padding: 80px 0;
            text-align: center;
            background: url('/LOGO/电子中框.jpg') center/cover;
            position: relative;
            margin: 20px 0;
            border-radius: 20px;
            box-shadow: 0 0 50px rgba(0,0,0,1);
        }
        .hero-section::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.9) 100%);
            border-radius: 20px;
        }
        .hero-content { position: relative; z-index: 2; }
        .hero-content h1 { 
            font-size: 56px; margin: 0; 
            background: linear-gradient(to bottom, #fff, var(--gold-primary));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            filter: drop-shadow(0 5px 15px rgba(0,0,0,0.8));
        }
        .hero-content p { font-size: 20px; color: #ddd; margin-top: 10px; }

        /* 游戏展示区：精美卡片 */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .game-box {
            background: #111;
            border-radius: 15px;
            overflow: hidden;
            border: 1px solid #333;
            transition: 0.4s;
            position: relative;
        }
        .game-box:hover {
            transform: translateY(-10px) scale(1.02);
            border-color: var(--gold-primary);
            box-shadow: 0 15px 40px rgba(241,196,15,0.2);
        }
        .game-img-wrap { position: relative; height: 200px; }
        .game-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
        .game-img-wrap::after {
            content: 'HOT'; position: absolute; top: 10px; right: 10px;
            background: var(--pg-red); color: #fff; padding: 4px 12px;
            border-radius: 4px; font-weight: 900; font-size: 12px;
        }
        .game-meta { padding: 20px; text-align: center; }
        .game-meta h3 { margin: 0 0 10px; color: var(--gold-primary); font-size: 20px; }
        .game-meta p { color: #888; font-size: 14px; margin: 0; }

        /* SEO 内容区：专业排版 */
        .seo-box {
            background: rgba(255,255,255,0.03);
            padding: 60px;
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,0.05);
            margin-bottom: 80px;
        }
        .seo-box h2 { 
            color: var(--gold-primary); font-size: 32px; 
            margin-bottom: 30px; display: flex; align-items: center; gap: 15px;
        }
        .seo-box h2::before { content: ''; width: 10px; height: 32px; background: var(--pg-red); border-radius: 5px; }
        .seo-box p { font-size: 17px; line-height: 1.8; color: #bbb; margin-bottom: 25px; }
        .seo-box strong { color: #fff; }

        footer { padding: 60px 0; text-align: center; background: #000; border-top: 1px solid #222; }
        .footer-text { color: #555; font-size: 13px; max-width: 800px; margin: 0 auto; }
        .back-btn { display: inline-block; margin-top: 40px; padding: 12px 30px; background: var(--primary-red); color: white; text-decoration: none; border-radius: 30px; font-weight: bold; transition: 0.3s; }
        .back-btn:hover { background: var(--gold); color: #333; }
        footer { text-align: center; padding: 40px 0; color: #888; font-size: 14px; }
        /* 返回首页按钮样式 - 悬浮在左上角 */
.back-home {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 100;
    background: rgba(0,0,0,0.6);
    border: 1px solid #f1c40f; /* 金色边框 */
    color: #f1c40f;
    padding: 8px 15px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    backdrop-filter: blur(5px);
    transition: 0.3s;
}
.back-home:hover { background: #f1c40f; color: #000; }

/* 立即进入游戏按钮样式 - 动态呼吸灯效果 */
.cta-btn {
    display: inline-block;
    background: linear-gradient(to bottom, #f1c40f, #d4af37);
    color: #000;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 20px;
    font-weight: 900;
    text-decoration: none;
    box-shadow: 0 0 20px rgba(241,196,15,0.6);
    animation: pulseBtn 2s infinite; /* 呼吸灯动画 */
    margin-top: 20px;
    border: none;
}
@keyframes pulseBtn {
    0% { transform: scale(1); box-shadow: 0 0 20px rgba(241,196,15,0.6); }
    50% { transform: scale(1.05); box-shadow: 0 0 40px rgba(241,196,15,0.9); }
    100% { transform: scale(1); box-shadow: 0 0 20px rgba(241,196,15,0.6); }
}

        /* 移动端优化 */
        @media (max-width: 768px) {
            .jackpot-num { font-size: 36px; }
            .hero-content h1 { font-size: 32px; }
            .seo-box { padding: 30px 20px; }
            .game-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
            .game-img-wrap { height: 120px; }
            .game-meta h3 { font-size: 16px; }
        }