* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }
        body {
            /* 背景图片设置 - 自适应核心 */
            background-size: cover; /* 自适应覆盖整个屏幕 */
            background-position: center; /* 居中显示 */
            background-repeat: no-repeat; /* 不重复 */
            background-attachment: fixed; /* 固定背景，滚动时不移动 */
            
            color: #ffffff;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            opacity: 0; /* 初始隐藏 */
            transition: opacity 1.5s ease; /* 渐显动画 */
            
            /* 半透明遮罩，保证文字清晰 */
            position: relative;
        }
        /* 遮罩层 - 避免背景图片干扰文字阅读 */
        body::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(18, 18, 18, 0.85); /* 黑色半透明遮罩，可调整透明度 */
            z-index: -1;
        }
        .container {
            max-width: 500px;
            width: 100%;
            text-align: center;
            position: relative;
            /* 容器加轻微毛玻璃效果，提升质感 */
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 30px 20px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.1);
        }
        .icon {
            width: 60px;
            height: 60px;
            border: 2px solid #fff;
            border-radius: 50%;
            margin: 0 auto 20px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .icon::after {
            content: "♥";
            color: #fff;
            font-size: 20px;
        }
        .line {
            width: 100%;
            height: 1px;
            background-color: rgba(255,255,255,0.3);
            margin: 10px 0 30px;
        }
        .username {
            font-size: 28px;
            letter-spacing: 2px;
            margin-bottom: 30px;
        }
        .info-list {
            text-align: center;
            font-size: 14px;
            line-height: 2.2;
            color: rgba(255,255,255,0.8);
            margin-bottom: 40px;
        }
        .btn-group {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap; /* 适配小屏幕，按钮自动换行 */
        }
        button {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.5);
            color: #fff;
            padding: 8px 20px;
            border-radius: 2px;
            cursor: pointer;
            transition: background 0.3s;
        }
        button a{
            color:#fff;
            text-decoration: none;
        }
        button:hover {
            background: rgba(255,255,255,0.1);
        }
        .footer {
            position: absolute;
            bottom: -40px;
            left: 0;
            right: 0;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }