<!DOCTYPE html>
<html lang="zh-TW">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>新年開台 - 紅金未來感</title>
    <style>
        /* 全頁背景 */
        body, html {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            font-family: 'Arial', sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            position: relative;
            background: radial-gradient(circle, rgba(255, 0, 0, 0.8) 30%, rgba(255, 100, 0, 0.6) 60%, rgba(255, 150, 0, 0.6) 100%);
            background-size: 300% 300%;
            animation: backgroundMove 10s ease infinite;
        }

        /* 背景漸變動態效果 */
        @keyframes backgroundMove {
            0% { background-position: 0% 0%; }
            50% { background-position: 100% 100%; }
            100% { background-position: 0% 0%; }
        }

        /* 主要容器 */
        .content {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .title {
            font-size: 4em;
            font-weight: bold;
            color: #ffcfc5; /* 紅色 */
            text-shadow: 0 0 15px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 100, 0, 0.5);
            animation: titleAnimation 3s ease-in-out infinite alternate;
        }

        /* 標題動畫 */
        @keyframes titleAnimation {
            0% { text-shadow: 0 0 15px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 100, 0, 0.5); }
            100% { text-shadow: 0 0 25px rgba(255, 255, 255, 1), 0 0 60px rgba(255, 100, 0, 0.8); }
        }

        /* 副標題動畫 */
        .subtitle {
            font-size: 1.8em;
            font-weight: bold;
            color: #FFCC00; /* 金黃色偏紅 */
            margin-top: 10px;
            animation: glowAnimation 2s ease-in-out infinite alternate;
        }

        @keyframes glowAnimation {
            0% { text-shadow: 0 0 20px #FF5733, 0 0 30px #FF5733; }
            100% { text-shadow: 0 0 30px #FF5733, 0 0 50px #FF5733; }
        }

        /* 按鈕樣式 */
        .btn {
            margin-top: 30px;
            padding: 20px 40px;
            font-size: 1.5em;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 30px;
            border: 2px solid #FF5733; /* 紅色 */
            cursor: pointer;
            position: relative;
            z-index: 3;
            color: white;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .btn:hover {
            background: rgba(255, 100, 0, 0.5); /* 金黃偏紅 */
            transform: scale(1.1);
        }

        .btn:active {
            transform: scale(1.05);
        }

        /* 未來感圓環動效 */
        .circle {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            border: 2px solid #FF5733; /* 紅色 */
            animation: spin 10s linear infinite;
            z-index: 1;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* 顯示在內容層的粒子動畫 */
        .particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0; /* 確保粒子在文字背後 */
        }

        .particle {
            position: absolute;
            background-color: rgba(255, 223, 0, 0.5); /* 輕微金黃色 */
            border-radius: 50%;
            animation: particleAnimation 3s ease-in-out infinite;
        }

        @keyframes particleAnimation {
            0% { opacity: 1; transform: translate(0, 0); }
            50% { opacity: 0.6; transform: translate(50px, -50px); }
            100% { opacity: 0; transform: translate(100px, 100px); }
        }

        /* 隨機顯示粒子 */
        .particle1 { width: 10px; height: 10px; top: 20%; left: 30%; animation-delay: 0s; }
        .particle2 { width: 6px; height: 6px; top: 40%; left: 50%; animation-delay: 1s; }
        .particle3 { width: 12px; height: 12px; top: 60%; left: 70%; animation-delay: 2s; }
        .particle4 { width: 10px; height: 10px; top: 80%; left: 20%; animation-delay: 3s; }
    </style>
</head>
<body>

    <!-- 粒子效果 -->
    <div class="particles">
        <div class="particle particle1"></div>
        <div class="particle particle2"></div>
        <div class="particle particle3"></div>
        <div class="particle particle4"></div>
    </div>

    <!-- 主要內容 -->
    <div class="circle"></div>

    <div class="content">
        <div class="title">歡迎來到我的新年直播！</div>
        <div class="subtitle">一起迎接快樂的 2025 年！</div>
        <!--button class="btn">開台啦！</button-->
    </div>

</body>
</html>
