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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>立珀时刻（北京）科技有限公司 · 建设中</title>
    <style>
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", sans-serif;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: #111;
            padding: 2rem;
            overflow: hidden;
        }
        .geo {
            position: relative;
            max-width: 700px;
            width: 100%;
            background: #fff;
            padding: 3.5rem 3rem;
            text-align: center;
            border: 4px solid #111;
            box-shadow: 16px 16px 0 #facc15;
        }
        .square {
            position: absolute;
            width: 30px; height: 30px;
            background: #111;
            top: -15px; left: 50%;
            transform: translateX(-50%) rotate(45deg);
        }
        .circle {
            position: absolute;
            width: 50px; height: 50px;
            border-radius: 50%;
            border: 4px solid #111;
            bottom: -27px; right: 40px;
            background: #fff;
        }
        h1 {
            font-size: clamp(2rem, 6vw, 3.5rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            color: #111;
            margin-bottom: 0.8rem;
            text-transform: uppercase;
        }
        .tag {
            display: inline-block;
            background: #111;
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.3em;
            padding: 0.5rem 1.2rem;
            margin-bottom: 2.5rem;
        }
        .footer {
            border-top: 3px solid #111;
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: #333;
        }
        .footer p { margin-bottom: 0.6rem; font-weight: 600; }
        .footer a {
            color: #111;
            text-decoration: none;
            border-bottom: 2px solid #facc15;
            font-weight: 700;
        }
        .footer a:hover { background: #facc15; }
    </style>
</head>
<body>
    <div class="geo">
        <div class="square"></div>
        <div class="circle"></div>
        <h1>立珀时刻（北京）科技有限公司</h1>
        <div class="tag">建设中</div>
        <div class="footer">
            <p>立珀时刻（北京）科技有限公司 版权所有</p>
            <a target="_blank" href="http://beian.miit.gov.cn/">京ICP备2021011750号-1</a>
        </div>
    </div>
</body>
</html>