var validDomain = 'blog.study996.cn';
var redirectUrl = 'https://blog.blog.study996.cn';
var hostname = document.location.hostname;
var isLocalHost =  (hostname === 'localhost' || hostname === '127.0.0.1');


if (!isLocalHost && !hostname.endsWith(validDomain)) {
    createWatermark(validDomain)
    var userResponse = confirm(\`警告：本页面非官方页面，可能存在有害信息！建议您立即跳转 ${validDomain} 并向站长举报该镜像站：${hostname}！\`);
    if (userResponse) {
        window.location.replace(redirectUrl);
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}

function createWatermark(text) {
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    watermarkDiv.style.position = 'fixed';
    watermarkDiv.style.top = '0';
    watermarkDiv.style.left = '0';
    watermarkDiv.style.width = '100%';
    watermarkDiv.style.height = '100%';
    watermarkDiv.style.zIndex = '9999';
    watermarkDiv.style.opacity = '0.1';
    watermarkDiv.style.background = 'transparent';
    watermarkDiv.style.overflow = 'hidden';
    watermarkDiv.style.display = 'flex';
    watermarkDiv.style.justifyContent = 'center';
    watermarkDiv.style.alignItems = 'center';
    watermarkDiv.style.flexWrap = 'wrap';

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    watermarkText.style.fontSize = '30px';
    watermarkText.style.transform = 'rotate(-30deg)';
    watermarkText.style.whiteSpace = 'nowrap';
    watermarkText.style.margin = '20px';

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    document.body.appendChild(watermarkDiv);
}