📋// 分享功能
function suiyuShare(url) {
    var shareUrl = url || window.location.href;
    if (navigator.share) {
        navigator.share({
            title: document.title,
            url: shareUrl
        }).catch(function() {
            copyToClipboard(shareUrl);
        });
    } else {
        copyToClipboard(shareUrl);
        alert('✅ 链接已复制');
    }
}

function copyToClipboard(text) {
    if (navigator.clipboard) {
        navigator.clipboard.writeText(text);
    } else {
        var textarea = document.createElement('textarea');
        textarea.value = text;
        document.body.appendChild(textarea);
        textarea.select();
        document.execCommand('copy');
        document.body.removeChild(textarea);
    }
}