diff --git a/extension/README.md b/extension/README.md
index 8fd35c45..87be1c3b 100644
--- a/extension/README.md
+++ b/extension/README.md
@@ -1,27 +1,31 @@
-# PolyWeather 侧边栏插件（MVP）
+# PolyWeather Side Panel
 
-这是一个 Chrome / Edge 侧边栏扩展的 MVP，用于把 PolyWeather 右侧城市卡片移植到浏览器侧边栏中。
+`PolyWeather Side Panel` 是一个面向天气交易场景的 Chrome / Edge 浏览器侧边栏工具。
 
 ## 功能
 
-- 侧边栏展示：
-  - 城市选择
-  - 风险徽章
-  - 城市档案（结算源 / 距离 / 观测更新时间 / 周边站点）
-  - 今日日内走势（简版 Canvas）
-  - 多日预报（`DEB` 优先）
-  - 基础判断卡（方向 / 置信度 / 原因）
-- 快捷按钮：
-  - 今日日内分析
-  - 历史对账
-  - 打开网站查看更多
-- 自动识别城市：
-  - 监听当前激活标签页 URL（例如 Polymarket `.../event/highest-temperature-in-ankara-...`）
-  - 自动将侧边栏城市切换为 URL 对应城市
-- 设置页可配置：
-  - 网站基础地址
-  - API 基础地址
-  - Bearer Token（可选）
+1. 自动识别当前 Polymarket 页面中的城市，也支持手动切换。
+2. 展示城市档案：结算站点、站点距离、观测更新时间、周边站点数量。
+3. 展示今日日内走势（简版）：`DEB` 走势与官方观测（`METAR / HKO / CWA`）对照，可悬停查看时间与温度。
+4. 展示多日最高温预报（简版），当前以 `DEB` 优先。
+5. 支持一键刷新，强制拉取最新温度数据。
+6. 支持本地缓存，提升打开速度；刷新时自动更新缓存。
+7. 支持一键跳转到完整网站分析页面。
+
+## 数据说明
+
+- 香港使用 `HKO`（香港天文台）结算源。
+- 其他城市按配置使用 `METAR / NOAA / 官方数据源`。
+
+## 权限说明
+
+- `tabs`：用于识别当前活动标签页 URL 并自动匹配城市。
+- `storage`：用于保存插件配置与本地缓存，仅存储在本地浏览器。
+- `sidePanel`：用于在浏览器侧边栏展示界面。
+
+## 隐私说明
+
+本扩展不要求用户登录，不收集个人身份信息，不上传浏览历史，仅在必要时请求天气接口数据以完成展示功能。
 
 ## 本地安装（开发者模式）
 
@@ -43,7 +47,7 @@
 
 ## 说明
 
-- 当前版本仍是轻量 MVP，重点是“监控 + 基础判断 + 导流回站”，未接入支付链路。
+- 当前版本仍是轻量产品，重点是“监控 + 基础判断 + 导流回站”，未接入支付链路。
 - 若你的 API 做了严格鉴权，请先在设置页填写 token 再使用。
 - 台北现在按 `NOAA RCTP` 结算参考展示。
 - 插件不会承载完整分析；完整结构判断、历史对账和更多信号仍以主站为准。
diff --git a/extension/manifest.json b/extension/manifest.json
index 0668c3da..ea742d85 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -1,8 +1,8 @@
 {
   "manifest_version": 3,
   "name": "PolyWeather Side Panel",
-  "description": "PolyWeather 右侧城市卡片（浏览器侧边栏）",
-  "version": "0.1.6",
+  "description": "Weather side panel for Polymarket: auto-detect city, city profile, compact intraday DEB vs official observations, multi-day highs, refresh, cache, and quick jump to full analysis.",
+  "version": "0.1.7",
   "icons": {
     "16": "icon-16.png",
     "32": "icon-32.png",
diff --git a/frontend/components/dashboard/DetailPanel.tsx b/frontend/components/dashboard/DetailPanel.tsx
index 9aec2eb1..57dbaa03 100644
--- a/frontend/components/dashboard/DetailPanel.tsx
+++ b/frontend/components/dashboard/DetailPanel.tsx
@@ -11,6 +11,7 @@ import { useI18n } from "@/hooks/useI18n";
 import { getOfficialSourceLinks } from "@/lib/dashboard-official-sources";
 import { getCityScenery } from "@/lib/dashboard-scenery";
 import { CityDetail } from "@/lib/dashboard-types";
+import { getTodayPolymarketUrl } from "@/lib/polymarket-market-links";
 import {
   getCityProfileStats,
   getRiskBadgeLabel,
@@ -167,6 +168,10 @@ export function DetailPanel() {
     () => (detail ? getOfficialSourceLinks(detail) : []),
     [detail],
   );
+  const marketUrl = useMemo(
+    () => getTodayPolymarketUrl(detail, locale),
+    [detail, locale],
+  );
   const scenery = getCityScenery(detail?.name);
   const blurActiveElement = () => {
     if (typeof document === "undefined") return;
@@ -280,6 +285,21 @@ export function DetailPanel() {
               {getRiskBadgeLabel(panelRiskLevel, locale)}
             </span>
             <div className="relative group">
+              {marketUrl ? (
+                <a
+                  className="history-btn"
+                  href={marketUrl}
+                  target="_blank"
+                  rel="noreferrer"
+                  title={
+                    locale === "en-US"
+                      ? "Open today's Polymarket market"
+                      : "打开今日 Polymarket 题目页"
+                  }
+                >
+                  {locale === "en-US" ? "Open Market" : "打开 Polymarket"}
+                </a>
+              ) : null}
               <button
                 type="button"
                 className={clsx("history-btn", !isPro && "pro-locked")}
diff --git a/frontend/content/docs/docs.ts b/frontend/content/docs/docs.ts
index 35ebaf89..0da73a36 100644
--- a/frontend/content/docs/docs.ts
+++ b/frontend/content/docs/docs.ts
@@ -351,7 +351,7 @@ export const DOCS_PAGES: DocsPage[] = [
     content: {
       "zh-CN": {
         title: "浏览器插件",
-        description: "侧边栏插件是主站的轻量入口，负责监控、基础判断和导流，不承载完整分析链路。",
+        description: "PolyWeather Side Panel 是一个面向天气交易场景的浏览器侧边栏工具，负责自动识别城市、展示简版走势与城市档案，并把用户导回完整分析页面。",
         sections: [
           {
             id: "extension-install",
@@ -372,9 +372,25 @@ export const DOCS_PAGES: DocsPage[] = [
               {
                 type: "bullets",
                 items: [
-                  "自动识别当前市场 URL，对应切换城市。",
-                  "展示风险徽章、城市档案、今日日内走势简版和多日预报。",
-                  "提供今日日内分析、历史对账和返回主站的快捷入口。",
+                  "自动识别当前 Polymarket 页面中的城市，也支持手动切换。",
+                  "展示城市档案：结算站点、站点距离、观测更新时间、周边站点数量。",
+                  "展示今日日内走势（简版）：DEB 走势与官方观测（METAR / HKO / CWA）对照，可悬停查看时间与温度。",
+                  "展示多日最高温预报（简版），并提供一键刷新与跳转主站入口。",
+                ],
+              },
+            ],
+          },
+          {
+            id: "extension-permission",
+            title: "权限与隐私",
+            blocks: [
+              {
+                type: "bullets",
+                items: [
+                  "`tabs`：用于识别当前活动标签页 URL 并自动匹配城市。",
+                  "`storage`：用于保存插件配置与本地缓存，仅存储在本地浏览器。",
+                  "`sidePanel`：用于在浏览器侧边栏展示界面。",
+                  "插件不要求用户登录，不收集个人身份信息，不上传浏览历史，仅在必要时请求天气接口数据。",
                 ],
               },
             ],
@@ -409,7 +425,7 @@ export const DOCS_PAGES: DocsPage[] = [
       },
       "en-US": {
         title: "Browser Extension",
-        description: "The side-panel extension is a lightweight lead-in to the main site. It focuses on monitoring, basic bias, and traffic flow back to the full dashboard.",
+        description: "PolyWeather Side Panel is a browser side-panel tool for weather trading workflows. It auto-detects cities, shows compact intraday and city-profile context, and routes users back to the full dashboard.",
         sections: [
           {
             id: "extension-install",
@@ -430,9 +446,25 @@ export const DOCS_PAGES: DocsPage[] = [
               {
                 type: "bullets",
                 items: [
-                  "Auto-detects the current market URL and switches the side panel to the matching city.",
-                  "Shows risk badges, city profile, a compact intraday chart, and multi-day forecast.",
-                  "Provides quick links into the main intraday analysis and history reconciliation views.",
+                  "Auto-detects the current Polymarket page city, with manual switching also available.",
+                  "Shows a city profile with settlement station, station distance, observation timestamp, and nearby station count.",
+                  "Shows a compact intraday chart with DEB versus official observations (METAR / HKO / CWA), including hoverable time and temperature.",
+                  "Shows a compact multi-day daily-high forecast, plus refresh and jump-to-site actions.",
+                ],
+              },
+            ],
+          },
+          {
+            id: "extension-permission",
+            title: "Permissions and privacy",
+            blocks: [
+              {
+                type: "bullets",
+                items: [
+                  "`tabs`: used to inspect the active tab URL and match the current city.",
+                  "`storage`: used for local configuration and local cache only.",
+                  "`sidePanel`: used to render the browser side panel UI.",
+                  "The extension does not require login, does not collect personally identifiable information, and does not upload browsing history. It only requests weather endpoints when needed to render the panel.",
                 ],
               },
             ],
diff --git a/frontend/lib/polymarket-market-links.ts b/frontend/lib/polymarket-market-links.ts
new file mode 100644
index 00000000..27c02b8f
--- /dev/null
+++ b/frontend/lib/polymarket-market-links.ts
@@ -0,0 +1,112 @@
+import type { CityDetail } from "@/lib/dashboard-types";
+import type { Locale } from "@/lib/i18n";
+
+const CITY_TO_MARKET_SLUG: Record<string, string> = {
+  ankara: "ankara",
+  atlanta: "atlanta",
+  austin: "austin",
+  beijing: "beijing",
+  "buenos aires": "buenos-aires",
+  chengdu: "chengdu",
+  chicago: "chicago",
+  chongqing: "chongqing",
+  dallas: "dallas",
+  houston: "houston",
+  "hong kong": "hong-kong",
+  istanbul: "istanbul",
+  london: "london",
+  "los angeles": "los-angeles",
+  lucknow: "lucknow",
+  madrid: "madrid",
+  mexico: "mexico-city",
+  "mexico city": "mexico-city",
+  miami: "miami",
+  milan: "milan",
+  munich: "munich",
+  "new york": "nyc",
+  paris: "paris",
+  "san francisco": "san-francisco",
+  "sao paulo": "sao-paulo",
+  seattle: "seattle",
+  seoul: "seoul",
+  shanghai: "shanghai",
+  shenzhen: "shenzhen",
+  singapore: "singapore",
+  taipei: "taipei",
+  "tel aviv": "tel-aviv",
+  tokyo: "tokyo",
+  toronto: "toronto",
+  warsaw: "warsaw",
+  wellington: "wellington",
+  wuhan: "wuhan",
+};
+
+const MONTHS = [
+  "january",
+  "february",
+  "march",
+  "april",
+  "may",
+  "june",
+  "july",
+  "august",
+  "september",
+  "october",
+  "november",
+  "december",
+];
+
+function normalizeCityKey(detail?: CityDetail | null) {
+  return String(detail?.name || detail?.display_name || "")
+    .trim()
+    .toLowerCase();
+}
+
+function slugifyCityName(cityKey: string) {
+  return cityKey
+    .trim()
+    .toLowerCase()
+    .replace(/['’.]/g, "")
+    .replace(/&/g, " and ")
+    .replace(/\s+/g, "-");
+}
+
+function normalizeDateParts(localDate?: string | null) {
+  const value = String(localDate || "").trim();
+  const match = value.match(/^(\d{4})-(\d{2})-(\d{2})$/);
+  if (!match) return null;
+  const year = Number(match[1]);
+  const monthIndex = Number(match[2]) - 1;
+  const day = Number(match[3]);
+  if (
+    !Number.isFinite(year) ||
+    !Number.isFinite(monthIndex) ||
+    !Number.isFinite(day) ||
+    monthIndex < 0 ||
+    monthIndex > 11
+  ) {
+    return null;
+  }
+  return {
+    year,
+    month: MONTHS[monthIndex],
+    day,
+  };
+}
+
+export function getTodayPolymarketUrl(
+  detail?: CityDetail | null,
+  locale: Locale = "en-US",
+) {
+  const cityKey = normalizeCityKey(detail);
+  const citySlug = CITY_TO_MARKET_SLUG[cityKey] || slugifyCityName(cityKey);
+  const dateParts = normalizeDateParts(detail?.local_date);
+  if (!citySlug || !dateParts) return null;
+
+  const prefix =
+    locale === "zh-CN"
+      ? "https://polymarket.com/zh/event/"
+      : "https://polymarket.com/event/";
+
+  return `${prefix}highest-temperature-in-${citySlug}-on-${dateParts.month}-${dateParts.day}-${dateParts.year}`;
+}