直接添加到已有代码后面，当页面滚动到底部停留0.3秒自动弹出 向上滑动立即消失 代码开始<div id=“ip-iframe” style=“position: fixed; bottom: -20px; left: 50%; transform: translateX(-50%) translateY(20px); width: 90%; max-width: 650px; height: 125px; z-index: 9988; opacity: 0; transition: opacity 0.5s ease, transform 0.5s ease; pointer-events: none;”> <iframe src=“https://ip.skk.moe/simple-dark” style=“width: 100%; height: 100%; border: none; background: white; border-radius: 8px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);”></iframe> </div>

<script> function isDesktop() return !/MobiAndroid/i.test(navigator.userAgent);

if (!isDesktop()) { document.getElementById(‘ip-iframe’).style.display = ‘none’; }

let timeoutId = null; let lastScrollY = window.scrollY;

window.addEventListener(‘scroll’, function () { let iframe = document.getElementById(‘ip-iframe’); let currentScrollY = window.scrollY; let pageHeight = document.documentElement.scrollHeight; // 获取页面总高度 let viewportHeight = window.innerHeight; // 视口高度 let scrolledToBottom = viewportHeight + currentScrollY >= pageHeight - 2; // 允许 2px 误差

// 1. 向上滑动立即隐藏 iframe
if (currentScrollY < lastScrollY) {
    clearTimeout(timeoutId);
    hideIframe();
} else {
    // 2. 只有完全到底部才触发显示
    if (isDesktop() && scrolledToBottom) {
        clearTimeout(timeoutId);
        timeoutId = setTimeout(() => {
            if (window.innerHeight + window.scrollY >= document.documentElement.scrollHeight - 2) { // 再次确认
                showIframe();
            }
        }, 300);
    } else {
        clearTimeout(timeoutId);
        hideIframe();
    }
}

lastScrollY = currentScrollY; // 更新滚动位置

});

// 显示 iframe function showIframe() { let iframe = document.getElementById(‘ip-iframe’); iframe.style.opacity = ‘1’; iframe.style.transform = ‘translateX(-50%) translateY(0)’; iframe.style.pointerEvents = ‘auto’; }

// 隐藏 iframe function hideIframe() { let iframe = document.getElementById(‘ip-iframe’); iframe.style.opacity = ‘0’; iframe.style.transform = ‘translateX(-50%) translateY(20px)’; iframe.style.pointerEvents = ‘none’; } </script> 代码结束