diff --git a/gemini-scrubber.js b/gemini-scrubber.js
new file mode 100644
index 0000000..263f7be
--- /dev/null
+++ b/gemini-scrubber.js
@@ -0,0 +1,214 @@
+// ==UserScript==
+// @name Gemini Minimal Scrubber
+// @namespace https://git.js0ny.net
+// @version 1.6
+// @description Sidebar navigation with text preview. No scroll-spy, just click-to-jump.
+// @author js0ny
+// @match https://gemini.google.com/*
+// @grant GM_addStyle
+// @run-at document-idle
+// ==/UserScript==
+
+(function() {
+ 'use strict';
+
+ const CONFIG = {
+ debounceTime: 200,
+ gap: '8px',
+ tooltipWidth: '380px',
+ hitAreaHeight: '32px',
+ baseColor: 'rgba(255, 255, 255, 0.25)',
+ hoverColor: '#a8c7fa',
+ };
+
+ GM_addStyle(`
+ #gemini-scrubber {
+ position: fixed;
+ right: 16px;
+ top: 50%;
+ transform: translateY(-50%);
+ display: flex;
+ flex-direction: column;
+ gap: ${CONFIG.gap};
+ z-index: 99999;
+ padding: 10px 8px;
+ pointer-events: none; /* 容器穿透 */
+ }
+
+ /* 1. 交互层 (热区) */
+ .scrub-item {
+ position: relative;
+ height: ${CONFIG.hitAreaHeight};
+ width: 32px; /* 稍微加宽热区 */
+ display: flex;
+ align-items: center;
+ justify-content: flex-end;
+ cursor: pointer;
+ pointer-events: auto; /* 恢复点击 */
+ }
+
+ /* 2. 视觉层 (胶囊) */
+ .scrub-visual {
+ width: 6px;
+ height: 24px;
+ background-color: ${CONFIG.baseColor};
+ border-radius: 99px;
+ transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
+ box-shadow: 0 2px 5px rgba(0,0,0,0.2);
+ opacity: 0.6;
+ }
+
+ /* Hover 效果：变宽、变色、变高 */
+ .scrub-item:hover .scrub-visual {
+ background-color: ${CONFIG.hoverColor};
+ width: 10px;
+ height: 32px;
+ opacity: 1;
+ box-shadow: 0 0 10px ${CONFIG.hoverColor};
+ }
+
+ /* 3. 预览框 (Tooltip) */
+ .scrub-tooltip {
+ position: absolute;
+ right: 36px;
+ top: 50%;
+ transform: translateY(-50%) translateX(10px);
+ width: ${CONFIG.tooltipWidth};
+ background-color: #1e1e1e;
+ border: 1px solid #444;
+ border-radius: 12px;
+ padding: 16px;
+ box-shadow: 0 8px 32px rgba(0,0,0,0.6);
+ opacity: 0;
+ visibility: hidden;
+ pointer-events: none;
+ transition: all 0.2s ease-out;
+
+ text-rendering: optimizeLegibility;
+ -webkit-font-smoothing: antialiased;
+ font-family: "Google Sans", system-ui, sans-serif;
+ font-size: 14px;
+ line-height: 1.6;
+ color: #e3e3e3;
+ z-index: 100000;
+ }
+
+ .scrub-item:hover .scrub-tooltip {
+ opacity: 1;
+ visibility: visible;
+ transform: translateY(-50%) translateX(0);
+ }
+
+ .tooltip-block { margin-bottom: 12px; }
+ .tooltip-block:last-child { margin-bottom: 0; }
+ .tooltip-label {
+ font-size: 11px;
+ color: #8e918f;
+ font-weight: 700;
+ letter-spacing: 0.5px;
+ margin-bottom: 4px;
+ text-transform: uppercase;
+ }
+ .tooltip-text {
+ word-wrap: break-word;
+ overflow: hidden;
+ display: -webkit-box;
+ -webkit-line-clamp: 6;
+ -webkit-box-orient: vertical;
+ }
+ .tooltip-text.user { color: #d2e3fc; }
+ `);
+
+ let container = null;
+ let debounceTimer = null;
+
+ function getCleanText(element) {
+ if (!element) return "";
+ const p = element.querySelector("p");
+ // 优先取 p，否则取纯文本，替换多余空白
+ const raw = (p && p.textContent.trim()) ? p.textContent : element.textContent;
+ return raw.replace(/\s+/g, ' ').trim();
+ }
+
+ function renderScrubber() {
+ if (!container) {
+ container = document.createElement('div');
+ container.id = 'gemini-scrubber';
+ document.body.appendChild(container);
+ }
+
+ const uNodes = document.querySelectorAll("user-query-content");
+ const rNodes = document.querySelectorAll("model-response");
+
+ // 没内容时清空
+ if (uNodes.length === 0) {
+ container.innerHTML = '';
+ return;
+ }
+
+ // 清理多余节点
+ while (container.children.length > uNodes.length) {
+ container.removeChild(container.lastChild);
+ }
+
+ uNodes.forEach((uNode, idx) => {
+ const rNode = rNodes[idx];
+ const uText = getCleanText(uNode);
+ const rText = rNode ? getCleanText(rNode) : "...";
+
+ let item = container.children[idx];
+
+ const newTooltipContent = `
+
+ ${rText ? `
+ ` : ''}
+ `;
+
+ if (item) {
+ // diff: update only on change
+ const currentU = item.dataset.uText;
+ const currentR = item.dataset.rText;
+
+ if (currentU !== uText || currentR !== rText) {
+ const tooltip = item.querySelector('.scrub-tooltip');
+ if (tooltip) tooltip.innerHTML = newTooltipContent;
+ item.dataset.uText = uText;
+ item.dataset.rText = rText;
+ }
+ } else {
+ item = document.createElement('div');
+ item.className = 'scrub-item';
+ item.dataset.uText = uText;
+ item.dataset.rText = rText;
+
+ item.innerHTML = `
+ ${newTooltipContent}
+
+ `;
+
+ item.addEventListener('click', (e) => {
+ e.stopPropagation();
+ uNode.scrollIntoView({ behavior: 'smooth', block: 'center' });
+ });
+
+ container.appendChild(item);
+ }
+ });
+ }
+
+ const observer = new MutationObserver(() => {
+ clearTimeout(debounceTimer);
+ debounceTimer = setTimeout(renderScrubber, CONFIG.debounceTime);
+ });
+
+ observer.observe(document.body, { childList: true, subtree: true });
+
+ setTimeout(renderScrubber, 1000);
+
+})();