<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Invalid Link - Short Link Service</title>
    <link rel="icon" type="image/x-icon" href="/resources/images/favicon.ico">
    <style>        :root {
        --primary-color: #ff4d4f;
        --text-main: #1f1f1f;
        --text-sub: #8c8c8c;
        --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        background: var(--bg-gradient);
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        color: var(--text-main);
    }

    .container {
        background: #ffffff;
        padding: 40px 50px;
        border-radius: 16px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        text-align: center;
        max-width: 480px;
        width: 90%;
        animation: fadeIn 0.6s ease-out;
    }

    .icon-box {
        margin-bottom: 24px;
    }

    .icon-box svg {
        width: 80px;
        height: 80px;
        fill: var(--primary-color);
    }

    h1 {
        font-size: 24px;
        font-weight: 600;
        margin-bottom: 12px;
        color: var(--text-main);
    }

    p {
        font-size: 14px;
        color: var(--text-sub);
        line-height: 1.6;
        /* 移除底部大间距，因为没有按钮了 */
        margin-bottom: 0;
    }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }
    </style>
</head>
<body>
<div class="container">
    <div class="icon-box">
        <!-- SVG Icon: Error/Warning -->
        <svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
            <circle cx="12" cy="12" r="10" fill="none" stroke="currentColor" stroke-width="2" style="stroke: #ff4d4f; fill:none;"/>
            <path d="M12 8v5m0 3h.01" stroke="currentColor" stroke-width="2" stroke-linecap="round" style="stroke: #ff4d4f;"/>
        </svg>
    </div>

    <h1>Invalid Short Link</h1>
    <p>
        The link you accessed may have been deleted, expired, or entered incorrectly.<br>
        Please verify the link.
    </p>
</div>
</body>
</html>