diff --git a/.env.example b/.env.example
index 4ea967c..8e8bf24 100644
--- a/.env.example
+++ b/.env.example
@@ -1,4 +1,6 @@
 # ========== 与 payjsapi/digital/nomadvip 同源 ==========
+APP_ENV=development
+NEXT_PUBLIC_APP_ENV=development
 NEXT_PUBLIC_POCKETBASE_URL=https://pocketbase.hackrobot.cn
 POCKETBASE_JOIN_COLLECTION=solan
 POCKETBASE_EMAIL=xiaoshuang.eric@gmail.com
diff --git a/.env.local b/.env.local
index cb49f82..cbe1acb 100644
--- a/.env.local
+++ b/.env.local
@@ -1,4 +1,6 @@
 # Linux 生产环境 - nomadro.cn
+APP_ENV=production
+NEXT_PUBLIC_APP_ENV=production
 ROOT_DOMAIN=nomadro.cn
 NEXT_PUBLIC_ROOT_DOMAIN=nomadro.cn
 NEXT_PUBLIC_POCKETBASE_URL=https://pocketbase.nomadro.cn
diff --git a/app/[locale]/ebooks/[slug]/page.tsx b/app/[locale]/ebooks/[slug]/page.tsx
index dd85113..035517c 100644
--- a/app/[locale]/ebooks/[slug]/page.tsx
+++ b/app/[locale]/ebooks/[slug]/page.tsx
@@ -4,6 +4,7 @@ import { use, useEffect, useState } from "react";
 import { Link, useLocale } from "@/i18n/navigation";
 import { apiFetch } from "@/app/lib/api-client";
 import Footer from "@/app/components/Footer";
+import ContentSubmissionModal from "@/app/components/ContentSubmissionModal";
 
 interface ContentItem {
   slug: string;
@@ -33,6 +34,7 @@ export default function EbookPage({ params }: { params: Promise<{ slug: string }
   const locale = useLocale();
   const [item, setItem] = useState<ContentItem | null>(null);
   const [cities, setCities] = useState<CityLite[]>([]);
+  const [submissionOpen, setSubmissionOpen] = useState(false);
 
   useEffect(() => {
     apiFetch<{ item: ContentItem; cities: CityLite[] }>(`/api/content/${slug}`)
@@ -89,6 +91,13 @@ export default function EbookPage({ params }: { params: Promise<{ slug: string }
               <Link href="/dashboard" className="rounded-full bg-[#ff4d4f] px-5 py-3 text-sm font-semibold text-white hover:bg-[#ff7a45]">
                 用城市数据规划路线
               </Link>
+              <button
+                type="button"
+                onClick={() => setSubmissionOpen(true)}
+                className="rounded-full border border-[#ff4d4f] px-5 py-3 text-sm font-semibold text-[#ff4d4f] hover:bg-[#ff4d4f]/10"
+              >
+                {locale === "zh" ? "投稿电子书" : "Submit ebook"}
+              </button>
               <Link href="/" className="rounded-full border border-gray-300 px-5 py-3 text-sm font-semibold text-gray-700 hover:bg-gray-100 dark:border-gray-700 dark:text-gray-300 dark:hover:bg-gray-800">
                 返回首页
               </Link>
@@ -109,6 +118,12 @@ export default function EbookPage({ params }: { params: Promise<{ slug: string }
           </div>
         </section>
       </main>
+      <ContentSubmissionModal
+        open={submissionOpen}
+        locale={locale}
+        submissionType="ebook"
+        onClose={() => setSubmissionOpen(false)}
+      />
       <Footer />
     </div>
   );
diff --git a/app/[locale]/page.tsx b/app/[locale]/page.tsx
index dbd8383..99931db 100644
--- a/app/[locale]/page.tsx
+++ b/app/[locale]/page.tsx
@@ -1,24 +1,20 @@
 "use client";
 
 import { useEffect, useState, useMemo } from "react";
-import { Link, useLocale, useRouter } from "@/i18n/navigation";
+import { Link, useLocale } from "@/i18n/navigation";
 import { useTranslation } from "@/i18n/navigation";
 import HeroSection from "../components/HeroSection";
 import FilterBar from "../components/FilterBar";
 import CityCard from "../components/CityCard";
 import CityModal from "../components/CityModal";
 import Footer from "@/app/components/Footer";
-import ContentSubmissionModal from "@/app/components/ContentSubmissionModal";
 import { cities, type City } from "../data/cities";
 import { HOME_CONFIG } from "@/config";
 import { apiFetch } from "@/app/lib/api-client";
 
 const {
   memberPhotos: fallbackMemberPhotos,
-  travelingNow: fallbackTravelingNow,
   meetups: fallbackHomeMeetups,
-  hotTopics: fallbackHotTopics,
-  routes: fallbackRoutes,
   stats: fallbackStats,
   communityStats: fallbackCommunityStats,
 } = HOME_CONFIG;
@@ -106,26 +102,6 @@ interface MeetupItem {
   venue?: string;
 }
 
-interface TopicItem {
-  id: string;
-  title: string;
-  titleEn?: string;
-  views: number;
-}
-
-interface RouteItem {
-  id?: string;
-  slug: string;
-  title: string;
-  titleEn?: string;
-  durationDays: number;
-  budget: number;
-  description: string;
-  descriptionEn?: string;
-  stops?: string[];
-  cities?: City[];
-}
-
 interface HomeStats {
   cities: string;
   nomads: string;
@@ -153,14 +129,9 @@ export default function Home() {
   const [homeContent, setHomeContent] = useState<ContentItem[]>(FALLBACK_HOME_CONTENT);
   const [homeStats, setHomeStats] = useState<HomeStats>(fallbackStats);
   const [memberPhotos, setMemberPhotos] = useState(fallbackMemberPhotos);
-  const [travelingNow, setTravelingNow] = useState(fallbackTravelingNow);
   const [homeMeetups, setHomeMeetups] = useState(fallbackHomeMeetups);
-  const [hotTopics, setHotTopics] = useState(fallbackHotTopics);
-  const [routes, setRoutes] = useState<RouteItem[]>([]);
   const [communityStats, setCommunityStats] = useState(fallbackCommunityStats);
-  const [submissionOpen, setSubmissionOpen] = useState(false);
   const locale = useLocale();
-  const router = useRouter();
   const { t } = useTranslation("home");
 
   useEffect(() => {
@@ -196,19 +167,9 @@ export default function Home() {
         const profiles = (data.items || []).slice(0, 12);
         if (profiles.length) {
           setMemberPhotos(profiles.map((profile) => ({ name: profile.name, photo: profile.photo })));
-          setTravelingNow(
-            profiles.map((profile) => ({
-              name: profile.name,
-              photo: profile.photo,
-              dest: profile.location || "远程",
-            }))
-          );
         }
       })
-      .catch(() => {
-        setMemberPhotos(fallbackMemberPhotos);
-        setTravelingNow(fallbackTravelingNow);
-      });
+      .catch(() => setMemberPhotos(fallbackMemberPhotos));
     apiFetch<{ items: MeetupItem[] }>("/api/meetups")
       .then((data) => {
         const meetups = (data.items || []).slice(0, 6);
@@ -224,25 +185,6 @@ export default function Home() {
         }
       })
       .catch(() => setHomeMeetups(fallbackHomeMeetups));
-    apiFetch<{ items: TopicItem[] }>("/api/discussions")
-      .then((data) => {
-        const topics = [...(data.items || [])]
-          .sort((a, b) => Number(b.views || 0) - Number(a.views || 0))
-          .slice(0, 5);
-        if (topics.length) {
-          setHotTopics(
-            topics.map((topic) => ({
-              titleZh: topic.title,
-              titleEn: topic.titleEn || topic.title,
-              views: Number(topic.views || 0),
-            }))
-          );
-        }
-      })
-      .catch(() => setHotTopics(fallbackHotTopics));
-    apiFetch<{ items: RouteItem[] }>("/api/routes")
-      .then((data) => setRoutes(data.items || []))
-      .catch(() => setRoutes([]));
   }, []);
 
   const filteredCities = useMemo(() => {
@@ -271,38 +213,11 @@ export default function Home() {
     return result;
   }, [activeFilter, sortBy, liveCities]);
 
-  const displayRoutes = routes.length
-    ? routes
-    : fallbackRoutes.map((route, index) => ({
-        id: `fallback-${index}`,
-        slug: route.titleEn.toLowerCase().replace(/[^a-z0-9]+/g, "-"),
-        title: route.titleZh,
-        titleEn: route.titleEn,
-        durationDays: Number(route.durationZh.match(/\d+/)?.[0] || 30),
-        budget: Number(route.costZh.replace(/[^\d]/g, "")) || 3000,
-        description: route.descZh,
-        descriptionEn: route.descEn,
-        stops: route.citiesZh,
-        cities: route.citiesZh.map((name, i) => ({
-          id: i,
-          name,
-          nameEn: route.citiesEn[i],
-          icon: route.emojis[i],
-        } as City)),
-      }));
-
-  const communityContent = useMemo(
-    () => homeContent.filter((item) => item.type === "ebook" || item.type === "video"),
+  const homepageFeatureContent = useMemo(
+    () => homeContent.slice(0, 4),
     [homeContent]
   );
 
-  const cityTags = [
-    { key: "dali", emoji: "🏯", zh: "大理", en: "Dali" },
-    { key: "chengdu", emoji: "🐼", zh: "成都", en: "Chengdu" },
-    { key: "shenzhen", emoji: "🌃", zh: "深圳", en: "Shenzhen" },
-    { key: "hangzhou", emoji: "⛲", zh: "杭州", en: "Hangzhou" },
-  ];
-
   return (
     <div className="min-h-screen bg-[#fafafa] dark:bg-gray-950">
       <HeroSection />
@@ -342,7 +257,7 @@ export default function Home() {
       </div>
 
       <div className="items-grid">
-        {homeContent.slice(0, 4).map((item, index) => {
+        {homepageFeatureContent.map((item, index) => {
           const title = locale === "zh" ? item.title : item.titleEn || item.title;
           const subtitle = locale === "zh" ? item.subtitle : item.subtitleEn || item.subtitle;
           const cta = locale === "zh" ? item.ctaLabel : item.ctaLabelEn || item.ctaLabel;
@@ -394,30 +309,7 @@ export default function Home() {
           );
         })}
 
-        <button
-          type="button"
-          onClick={() => setSubmissionOpen(true)}
-          className="right-item block cursor-pointer text-left"
-          style={{ gridColumn: "-2 / -1", gridRow: 5 }}
-        >
-          <div className="right-item-header">共创投稿</div>
-          <div className="flex h-[calc(100%-38px)] flex-col justify-center p-3 sm:h-[calc(100%-42px)] sm:p-5">
-            <span className="mb-2 inline-flex w-fit rounded-full bg-[#ff4d4f]/10 px-2.5 py-1 text-[10px] font-bold text-[#ff4d4f] sm:text-xs">
-              UGC
-            </span>
-            <p className="text-xs font-bold leading-snug text-gray-900 dark:text-gray-100 sm:text-sm">
-              投稿电子书 / 访谈视频
-            </p>
-            <p className="mt-2 line-clamp-3 text-[10px] leading-relaxed text-gray-500 dark:text-gray-400 sm:text-xs">
-              用户上传内容后进入审核队列，通过后展示在首页内容区。
-            </p>
-            <span className="mt-3 inline-flex w-fit rounded-full bg-[#ff4d4f] px-3 py-1.5 text-[10px] font-semibold text-white sm:text-xs">
-              提交审核
-            </span>
-          </div>
-        </button>
-
-        <Link href="/join" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: 6 }}>
+        <Link href="/join" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: homepageFeatureContent.length + 1 }}>
           <div className="right-item-header">{t("joinCommunity")}</div>
           <div className="flex flex-col items-center justify-center text-center p-2 sm:p-5 h-[calc(100%-38px)] sm:h-[calc(100%-42px)]">
             <span className="text-2xl sm:text-5xl mb-1 sm:mb-3">💬</span>
@@ -433,7 +325,7 @@ export default function Home() {
           </div>
         </Link>
 
-        <Link href="/dating" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: 7 }}>
+        <Link href="/dating" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: homepageFeatureContent.length + 2 }}>
           <div className="right-item-header">{t("newMembers")}</div>
           <div className="p-2 sm:p-5 flex flex-wrap gap-1 sm:gap-2 content-start">
             {memberPhotos.map((m) => (
@@ -451,7 +343,7 @@ export default function Home() {
           </div>
         </Link>
 
-        <Link href="/meetups" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: 8 }}>
+        <Link href="/meetups" className="right-item block" style={{ gridColumn: "-2 / -1", gridRow: homepageFeatureContent.length + 3 }}>
           <div className="right-item-header">{t("latestEvents")}</div>
           <div className="p-1.5 sm:p-4 flex flex-col gap-0.5 sm:gap-2.5 text-[10px] sm:text-sm text-gray-700 dark:text-gray-300 h-[calc(100%-38px)] sm:h-[calc(100%-42px)]">
             {homeMeetups.slice(0, 3).map((meetup) => (
@@ -501,274 +393,11 @@ export default function Home() {
         </div>
       )}
 
-      <section className="max-w-[1500px] mx-auto px-3 sm:px-6 md:px-10 pt-8 sm:pt-12 pb-4">
-        <div className="mb-5 flex flex-col gap-3 sm:mb-6 sm:flex-row sm:items-center sm:justify-between">
-          <h2 className="text-lg sm:text-xl font-bold text-gray-900 dark:text-gray-100 flex items-center gap-2">
-            <span className="w-1 h-5 bg-[#ff4d4f] rounded-full" />
-            电子书 / 访谈视频
-          </h2>
-          <button
-            type="button"
-            onClick={() => setSubmissionOpen(true)}
-            className="w-fit rounded-lg bg-[#ff4d4f] px-4 py-2 text-sm font-bold text-white transition-colors hover:bg-[#ff7a45]"
-          >
-            投稿内容
-          </button>
-        </div>
-        <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-4">
-          {communityContent.slice(0, 8).map((item) => {
-            const title = locale === "zh" ? item.title : item.titleEn || item.title;
-            const subtitle = locale === "zh" ? item.subtitle : item.subtitleEn || item.subtitle;
-            const cta = locale === "zh" ? item.ctaLabel : item.ctaLabelEn || item.ctaLabel;
-            const href = item.type === "video" ? `/videos/${item.slug}` : `/ebooks/${item.slug}`;
-            return (
-              <Link
-                key={`${item.type}-${item.slug}`}
-                href={href}
-                className="group overflow-hidden rounded-lg bg-white shadow-sm ring-1 ring-gray-100 transition-transform hover:-translate-y-0.5 dark:bg-gray-900 dark:ring-gray-800"
-              >
-                <div className="relative aspect-[4/3] overflow-hidden bg-gray-100 dark:bg-gray-800">
-                  <img src={item.coverImage} alt={title} className="h-full w-full object-cover transition-transform duration-300 group-hover:scale-105" />
-                  <span className="absolute left-3 top-3 rounded-full bg-white/90 px-2.5 py-1 text-[11px] font-bold text-gray-900">
-                    {item.type === "ebook" ? "电子书" : "访谈视频"}
-                  </span>
-                </div>
-                <div className="p-4">
-                  <h3 className="line-clamp-2 text-sm font-bold leading-snug text-gray-900 dark:text-gray-100">{title}</h3>
-                  <p className="mt-2 line-clamp-2 text-xs leading-5 text-gray-500 dark:text-gray-400">{subtitle}</p>
-                  <span className="mt-4 inline-flex text-xs font-bold text-[#ff4d4f]">{cta}</span>
-                </div>
-              </Link>
-            );
-          })}
-        </div>
-      </section>
-
-      <section className="max-w-[1500px] mx-auto px-3 sm:px-6 md:px-10 pt-8 sm:pt-12 pb-4">
-        <h2 className="text-lg sm:text-xl font-bold text-gray-900 dark:text-gray-100 mb-5 sm:mb-6 flex items-center gap-2">
-          <span className="w-1 h-5 bg-[#ff4d4f] rounded-full" />
-          {t("hotRoutes")}
-        </h2>
-        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4 sm:gap-5">
-          {displayRoutes.map((route) => (
-            <Link
-              key={route.slug}
-              href={`/dashboard?route=${encodeURIComponent(route.slug)}`}
-              className="community-card group cursor-pointer block"
-            >
-              <div className="h-2 bg-gradient-to-r from-[#ff4d4f] to-[#ff7a45]" />
-              <div className="p-4 sm:p-5">
-                <div className="flex items-center justify-between mb-3">
-                  <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm">
-                    {locale === "zh" ? route.title : route.titleEn || route.title}
-                  </h3>
-                  <span className="text-[11px] text-gray-400 dark:text-gray-500 bg-gray-50 dark:bg-gray-800 rounded-full px-2 py-0.5">
-                    {route.durationDays} 天
-                  </span>
-                </div>
-                <div className="flex items-center gap-1 mb-3">
-                  {(route.cities || []).slice(0, 4).map((city, i) => (
-                    <span key={i} className="flex items-center gap-0.5 text-sm">
-                      <span>{city.icon || "📍"}</span>
-                      <span className="font-medium text-gray-700 dark:text-gray-300">
-                        {locale === "zh" ? city.name : city.nameEn || city.name}
-                      </span>
-                      {i < (route.cities || []).slice(0, 4).length - 1 && (
-                        <span className="text-gray-300 dark:text-gray-600 mx-1">→</span>
-                      )}
-                    </span>
-                  ))}
-                </div>
-                <p className="text-xs text-gray-500 dark:text-gray-400 mb-3 leading-relaxed">
-                  {locale === "zh" ? route.description : route.descriptionEn || route.description}
-                </p>
-                <div className="flex items-center justify-between">
-                  <span className="text-sm font-semibold text-gray-900 dark:text-gray-100">
-                    ¥{route.budget.toLocaleString()}
-                  </span>
-                  <span className="text-xs text-[#ff4d4f] font-medium group-hover:translate-x-1 transition-transform">
-                    {t("routeDetails")}
-                  </span>
-                </div>
-              </div>
-            </Link>
-          ))}
-        </div>
-      </section>
-
-      <section id="community" className="max-w-[1500px] mx-auto px-3 sm:px-6 md:px-10 py-8 sm:py-12">
-        <h2 className="text-lg sm:text-xl font-bold text-gray-900 dark:text-gray-100 mb-5 sm:mb-6 flex items-center gap-2">
-          <span className="w-1 h-5 bg-[#ff4d4f] rounded-full" />
-          {t("communityDynamics")}
-        </h2>
-
-        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4 sm:gap-5">
-          <Link href="/meetups" className="community-card block">
-            <div className="p-4 sm:p-5">
-              <div className="flex items-center justify-between mb-4">
-                <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm flex items-center gap-1.5">
-                  🍹 {t("recentMeetups")}
-                </h3>
-                <span className="text-[11px] text-gray-400 dark:text-gray-500 bg-gray-50 dark:bg-gray-800 rounded-full px-2 py-0.5">
-                  {homeMeetups.length}{t("perMonth")}
-                </span>
-              </div>
-              <div className="space-y-2.5">
-                {homeMeetups.map((m) => (
-                  <div key={m.city} className="flex items-center justify-between py-1.5">
-                    <div className="flex items-center gap-2">
-                      <span className="text-base">{m.emoji}</span>
-                      <div>
-                        <p className="text-sm font-medium text-gray-800 dark:text-gray-200">{m.city}</p>
-                        <p className="text-[11px] text-gray-400 dark:text-gray-500">{m.date}</p>
-                      </div>
-                    </div>
-                    <span className="text-[11px] text-gray-400 dark:text-gray-500 bg-gray-50 dark:bg-gray-800 rounded-full px-2 py-0.5">
-                      {m.count}{t("people")}
-                    </span>
-                  </div>
-                ))}
-              </div>
-              <div className="block w-full text-center text-xs font-medium text-[#ff4d4f] hover:text-[#ff7a45] mt-4 pt-3 border-t border-gray-100 dark:border-gray-700 transition-colors">
-                {t("viewMore")}
-              </div>
-            </div>
-          </Link>
-
-          <div className="community-card">
-            <div className="p-4 sm:p-5">
-              <div className="flex items-center justify-between mb-4">
-                <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm flex items-center gap-1.5">
-                  🛩️ {t("travelingNow")}
-                </h3>
-                <span className="text-[11px] text-gray-400 dark:text-gray-500 bg-gray-50 dark:bg-gray-800 rounded-full px-2 py-0.5">
-                  {travelingNow.length}{t("people")}
-                </span>
-              </div>
-              <div className="flex flex-wrap gap-2">
-                {travelingNow.slice(0, 16).map((m) => (
-                  <img
-                    key={m.name}
-                    src={m.photo}
-                    alt={m.name}
-                    title={`${m.name} · ${m.dest}`}
-                    className="w-9 h-9 rounded-full shadow-sm cursor-pointer hover:scale-110 transition-transform object-cover"
-                  />
-                ))}
-              </div>
-            </div>
-          </div>
-
-          <Link href="/discuss" className="community-card block">
-            <div className="p-4 sm:p-5">
-              <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm flex items-center gap-1.5 mb-4">
-                🔥 {t("hotDiscussions")}
-              </h3>
-              <div className="space-y-3">
-                {hotTopics.slice(0, 5).map((t_item, i) => (
-                  <div key={t_item.titleZh} className="flex items-start gap-2.5 group">
-                    <span className={`text-xs font-bold mt-0.5 w-4 shrink-0 ${i < 3 ? "text-[#ff4d4f]" : "text-gray-300 dark:text-gray-600"}`}>
-                      {i + 1}
-                    </span>
-                    <div className="flex-1">
-                      <p className="min-w-0 text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-gray-100 transition-colors line-clamp-1 leading-snug">
-                        {locale === "zh" ? t_item.titleZh : t_item.titleEn}
-                      </p>
-                      <p className="text-[11px] text-gray-400 dark:text-gray-500 mt-0.5">
-                        {t_item.views.toLocaleString()} {t("views")}
-                      </p>
-                    </div>
-                  </div>
-                ))}
-              </div>
-              <div className="block w-full text-center text-xs font-medium text-[#ff4d4f] hover:text-[#ff7a45] mt-4 pt-3 border-t border-gray-100 dark:border-gray-700 transition-colors">
-                {t("viewAllTopics")}
-              </div>
-            </div>
-          </Link>
-
-          <Link href="/services" className="community-card bg-gradient-to-br from-emerald-50 to-teal-50 dark:from-emerald-950/30 dark:to-teal-950/30 block">
-            <div className="p-4 sm:p-5">
-              <div className="flex items-start gap-3 mb-3">
-                <span className="text-2xl">🛡️</span>
-                <div>
-                  <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm">{t("travelInsurance")}</h3>
-                  <p className="text-xs text-gray-500 dark:text-gray-400 mt-0.5">{t("travelInsuranceDesc")}</p>
-                </div>
-              </div>
-              <p className="text-xs text-emerald-700 dark:text-emerald-400 bg-emerald-100/50 dark:bg-emerald-900/30 rounded-lg px-3 py-2 mb-3">
-                {t("insuranceCoverage")}
-              </p>
-              <div className="w-full text-center text-sm font-semibold text-emerald-700 dark:text-emerald-400 hover:text-emerald-800 dark:hover:text-emerald-300 bg-white/80 dark:bg-gray-800/80 hover:bg-white dark:hover:bg-gray-800 border border-emerald-200 dark:border-emerald-800 rounded-full py-2 transition-colors">
-                {t("learnMore")}
-              </div>
-            </div>
-          </Link>
-
-          <Link href="/join" className="community-card bg-gradient-to-br from-violet-50 to-purple-50 dark:from-violet-950/30 dark:to-purple-950/30 block">
-            <div className="p-4 sm:p-5">
-              <div className="flex items-start gap-3 mb-3">
-                <span className="text-2xl">💬</span>
-                <div>
-                  <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm">{t("communityChat")}</h3>
-                  <p className="text-xs text-gray-500 dark:text-gray-400 mt-0.5">{locale === "zh" ? `本月 ${communityStats.messagesPerMonth} 条消息` : `${communityStats.messagesPerMonth} messages this month`}</p>
-                </div>
-              </div>
-              <div className="flex items-center gap-2 mb-4">
-                <div className="flex -space-x-2">
-                  {memberPhotos.slice(0, 6).map((m) => (
-                    <img
-                      key={m.name}
-                      src={m.photo}
-                      alt=""
-                      className="w-7 h-7 rounded-full border-2 border-white dark:border-gray-800 shadow-sm object-cover"
-                    />
-                  ))}
-                </div>
-                <span className="text-xs text-gray-400 dark:text-gray-500">{t("onlineNow")}</span>
-              </div>
-              <div className="w-full text-center text-sm font-semibold text-violet-700 dark:text-violet-400 hover:text-violet-800 dark:hover:text-violet-300 bg-white/80 dark:bg-gray-800/80 hover:bg-white dark:hover:bg-gray-800 border border-violet-200 dark:border-violet-800 rounded-full py-2 transition-colors">
-                {t("joinChat")}
-              </div>
-            </div>
-          </Link>
-
-          <Link href="/tools" className="community-card bg-gradient-to-br from-amber-50 to-orange-50 dark:from-amber-950/30 dark:to-orange-950/30 block">
-            <div className="p-4 sm:p-5">
-              <div className="flex items-start gap-3 mb-3">
-                <span className="text-2xl">🏛️</span>
-                <div>
-                  <h3 className="font-bold text-gray-900 dark:text-gray-100 text-sm">{t("landingGuide")}</h3>
-                  <p className="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
-                    {t("landingGuideDesc")}
-                  </p>
-                </div>
-              </div>
-              <div className="flex flex-wrap gap-1.5 mb-3">
-                {cityTags.map((tag) => (
-                  <button
-                    key={tag.key}
-                    onClick={() => router.push(`/city/${tag.key}`)}
-                    className="text-[11px] bg-amber-100/60 dark:bg-amber-900/30 text-amber-700 dark:text-amber-400 rounded-full px-2 py-0.5 cursor-pointer hover:bg-amber-200 dark:hover:bg-amber-800 transition-colors"
-                  >
-                    {tag.emoji} {locale === "zh" ? tag.zh : tag.en}
-                  </button>
-                ))}
-              </div>
-              <div className="w-full text-center text-sm font-semibold text-amber-700 dark:text-amber-400 hover:text-amber-800 dark:hover:text-amber-300 bg-white/80 dark:bg-gray-800/80 hover:bg-white dark:hover:bg-gray-800 border border-amber-200 dark:border-amber-800 rounded-full py-2 transition-colors">
-                {t("viewGuides")}
-              </div>
-            </div>
-          </Link>
-        </div>
-      </section>
-
       <CityModal
         city={cityModal}
         isOpen={!!cityModal}
         onClose={() => setCityModal(null)}
       />
-      <ContentSubmissionModal open={submissionOpen} locale={locale} onClose={() => setSubmissionOpen(false)} />
       <Footer />
     </div>
   );
diff --git a/app/[locale]/videos/[slug]/page.tsx b/app/[locale]/videos/[slug]/page.tsx
index 691c665..4bd9969 100644
--- a/app/[locale]/videos/[slug]/page.tsx
+++ b/app/[locale]/videos/[slug]/page.tsx
@@ -4,6 +4,7 @@ import { use, useEffect, useState } from "react";
 import { Link, useLocale } from "@/i18n/navigation";
 import { apiFetch } from "@/app/lib/api-client";
 import Footer from "@/app/components/Footer";
+import ContentSubmissionModal from "@/app/components/ContentSubmissionModal";
 
 interface ContentItem {
   slug: string;
@@ -33,6 +34,7 @@ export default function VideoPage({ params }: { params: Promise<{ slug: string }
   const locale = useLocale();
   const [item, setItem] = useState<ContentItem | null>(null);
   const [cities, setCities] = useState<CityLite[]>([]);
+  const [submissionOpen, setSubmissionOpen] = useState(false);
 
   useEffect(() => {
     apiFetch<{ item: ContentItem; cities: CityLite[] }>(`/api/content/${slug}`)
@@ -54,7 +56,16 @@ export default function VideoPage({ params }: { params: Promise<{ slug: string }
   return (
     <div className="min-h-screen bg-[#0f172a] text-white">
       <main className="mx-auto max-w-6xl px-4 py-8 sm:px-6 sm:py-12">
-        <Link href="/" className="text-sm text-white/60 hover:text-white">← 返回首页</Link>
+        <div className="flex flex-wrap items-center justify-between gap-3">
+          <Link href="/" className="text-sm text-white/60 hover:text-white">← 返回首页</Link>
+          <button
+            type="button"
+            onClick={() => setSubmissionOpen(true)}
+            className="rounded-full border border-[#ff7a45] px-4 py-2 text-sm font-semibold text-[#ffb088] hover:bg-[#ff7a45]/10"
+          >
+            {locale === "zh" ? "投稿访谈视频" : "Submit interview video"}
+          </button>
+        </div>
         <div className="mt-6 overflow-hidden rounded-2xl bg-black shadow-2xl">
           {item.mediaUrl ? (
             <video src={item.mediaUrl} poster={item.coverImage} controls playsInline className="aspect-video w-full bg-black object-contain" />
@@ -94,6 +105,12 @@ export default function VideoPage({ params }: { params: Promise<{ slug: string }
           </div>
         </section>
       </main>
+      <ContentSubmissionModal
+        open={submissionOpen}
+        locale={locale}
+        submissionType="video"
+        onClose={() => setSubmissionOpen(false)}
+      />
       <Footer />
     </div>
   );
diff --git a/app/components/ContentSubmissionModal.tsx b/app/components/ContentSubmissionModal.tsx
index a273443..0759503 100644
--- a/app/components/ContentSubmissionModal.tsx
+++ b/app/components/ContentSubmissionModal.tsx
@@ -21,6 +21,7 @@ interface ContentSubmissionModalProps {
   open: boolean;
   locale: string;
   onClose: () => void;
+  submissionType?: SubmissionType;
 }
 
 const MB = 1024 * 1024;
@@ -37,11 +38,20 @@ const EMPTY_FORM: FormState = {
   chaptersText: "",
 };
 
-export default function ContentSubmissionModal({ open, locale, onClose }: ContentSubmissionModalProps) {
+export default function ContentSubmissionModal({ open, locale, onClose, submissionType }: ContentSubmissionModalProps) {
   const isZh = locale === "zh";
-  const copy = useMemo(
-    () => ({
-      title: isZh ? "投稿电子书 / 访谈视频" : "Submit ebook / interview",
+  const initialType = submissionType || "ebook";
+  const copy = useMemo(() => {
+    let title = isZh ? "投稿电子书 / 访谈视频" : "Submit ebook / interview";
+    if (submissionType === "ebook") {
+      title = isZh ? "投稿电子书" : "Submit ebook";
+    }
+    if (submissionType === "video") {
+      title = isZh ? "投稿访谈视频" : "Submit interview video";
+    }
+
+    return {
+      title,
       close: isZh ? "关闭" : "Close",
       ebook: isZh ? "电子书" : "Ebook",
       video: isZh ? "访谈视频" : "Interview video",
@@ -66,11 +76,10 @@ export default function ContentSubmissionModal({ open, locale, onClose }: Conten
       uploadFailed: isZh ? "上传失败" : "Upload failed",
       fileTooLarge: isZh ? "文件过大" : "File too large",
       review: isZh ? "状态：待审核" : "Status: pending review",
-    }),
-    [isZh]
-  );
+    };
+  }, [isZh, submissionType]);
 
-  const [form, setForm] = useState<FormState>(EMPTY_FORM);
+  const [form, setForm] = useState<FormState>({ ...EMPTY_FORM, type: initialType });
   const [uploading, setUploading] = useState<"coverImage" | "mediaUrl" | null>(null);
   const [submitting, setSubmitting] = useState(false);
   const [message, setMessage] = useState("");
@@ -80,8 +89,9 @@ export default function ContentSubmissionModal({ open, locale, onClose }: Conten
     if (open) {
       setMessage("");
       setError("");
+      setForm((prev) => ({ ...prev, type: initialType }));
     }
-  }, [open]);
+  }, [open, initialType]);
 
   if (!open) return null;
 
@@ -164,7 +174,7 @@ export default function ContentSubmissionModal({ open, locale, onClose }: Conten
         }),
       });
       setMessage(copy.success);
-      setForm({ ...EMPTY_FORM, type: form.type });
+      setForm({ ...EMPTY_FORM, type: initialType });
     } catch (err) {
       setError(err instanceof Error ? err.message : "提交失败");
     } finally {
@@ -194,22 +204,24 @@ export default function ContentSubmissionModal({ open, locale, onClose }: Conten
         </div>
 
         <form onSubmit={submit} className="space-y-5 px-4 py-5 sm:px-6">
-          <div className="grid grid-cols-2 gap-2 rounded-lg bg-gray-100 p-1 dark:bg-gray-900">
-            {(["ebook", "video"] as SubmissionType[]).map((type) => (
-              <button
-                key={type}
-                type="button"
-                onClick={() => set("type", type)}
-                className={`rounded-md px-3 py-2 text-sm font-bold transition-colors ${
-                  form.type === type
-                    ? "bg-[#ff4d4f] text-white shadow-sm"
-                    : "text-gray-600 hover:bg-white dark:text-gray-300 dark:hover:bg-gray-800"
-                }`}
-              >
-                {type === "ebook" ? copy.ebook : copy.video}
-              </button>
-            ))}
-          </div>
+          {!submissionType && (
+            <div className="grid grid-cols-2 gap-2 rounded-lg bg-gray-100 p-1 dark:bg-gray-900">
+              {(["ebook", "video"] as SubmissionType[]).map((type) => (
+                <button
+                  key={type}
+                  type="button"
+                  onClick={() => set("type", type)}
+                  className={`rounded-md px-3 py-2 text-sm font-bold transition-colors ${
+                    form.type === type
+                      ? "bg-[#ff4d4f] text-white shadow-sm"
+                      : "text-gray-600 hover:bg-white dark:text-gray-300 dark:hover:bg-gray-800"
+                  }`}
+                >
+                  {type === "ebook" ? copy.ebook : copy.video}
+                </button>
+              ))}
+            </div>
+          )}
 
           <div className="grid gap-4 sm:grid-cols-2">
             <label className="block">
diff --git a/app/digital/lib/auth-cookie.ts b/app/digital/lib/auth-cookie.ts
index 77df8ed..5d65f66 100644
--- a/app/digital/lib/auth-cookie.ts
+++ b/app/digital/lib/auth-cookie.ts
@@ -4,6 +4,8 @@
  * 本地开发不设置 domain，避免 IP 访问时 cookie 失效
  */
 
+import { IS_DEVELOPMENT, IS_PRODUCTION } from "@/config/runtime-env";
+
 const COOKIE_NAME = "pb_session";
 const COOKIE_MAX_AGE = 60 * 60 * 24 * 365;
 
@@ -16,18 +18,17 @@ export function getHostFromRequest(request: { headers: { get: (k: string) => str
 }
 
 export function getCookieOptions(clear = false, requestHost?: string) {
-  const isProd = process.env.NODE_ENV === "production";
   const domain = process.env.AUTH_COOKIE_DOMAIN?.trim();
   const opts: Record<string, unknown> = {
     path: "/",
     maxAge: clear ? 0 : COOKIE_MAX_AGE,
-    secure: isProd,
+    secure: IS_PRODUCTION,
     sameSite: "lax" as const,
     httpOnly: true,
   };
-  if (domain && isProd) {
+  if (domain && IS_PRODUCTION) {
     opts.domain = domain;
-  } else if (!isProd && requestHost && /^(\d{1,3}\.){3}\d{1,3}$/.test(requestHost)) {
+  } else if (IS_DEVELOPMENT && requestHost && /^(\d{1,3}\.){3}\d{1,3}$/.test(requestHost)) {
     opts.domain = requestHost;
   }
   return opts;
diff --git a/app/digital/lib/env.ts b/app/digital/lib/env.ts
index 230096a..bc83257 100644
--- a/app/digital/lib/env.ts
+++ b/app/digital/lib/env.ts
@@ -4,6 +4,7 @@
  */
 
 import { DEFAULT_PAYMENT_API_URL, DEFAULT_SITE_URL } from "@/config/digital/domain.config";
+import { IS_DEVELOPMENT } from "@/config/runtime-env";
 
 /** 支付 API 地址（payjsapi） */
 export const PAYMENT_API_URL =
@@ -14,4 +15,4 @@ export const SITE_URL =
   process.env.NEXT_PUBLIC_SITE_URL || DEFAULT_SITE_URL;
 
 /** 是否为本地开发 */
-export const IS_DEV = process.env.NODE_ENV === "development";
+export const IS_DEV = IS_DEVELOPMENT;
diff --git a/app/lib/auth-cookie.ts b/app/lib/auth-cookie.ts
index 816977e..3e5b00c 100644
--- a/app/lib/auth-cookie.ts
+++ b/app/lib/auth-cookie.ts
@@ -4,6 +4,8 @@
  * 本地开发不设置 domain，避免 IP 访问时 cookie 失效
  */
 
+import { IS_DEVELOPMENT, IS_PRODUCTION } from "@/config/runtime-env";
+
 const COOKIE_NAME = "pb_session";
 const COOKIE_MAX_AGE = 60 * 60 * 24 * 365;
 
@@ -15,18 +17,17 @@ export function getHostFromRequest(request: { headers: { get: (k: string) => str
 }
 
 export function getCookieOptions(clear = false, requestHost?: string) {
-  const isProd = process.env.NODE_ENV === "production";
   const domain = process.env.AUTH_COOKIE_DOMAIN?.trim();
   const opts: Record<string, unknown> = {
     path: "/",
     maxAge: clear ? 0 : COOKIE_MAX_AGE,
-    secure: isProd,
+    secure: IS_PRODUCTION,
     sameSite: "lax" as const,
     httpOnly: true,
   };
-  if (domain && isProd) {
+  if (domain && IS_PRODUCTION) {
     opts.domain = domain;
-  } else if (!isProd && requestHost && /^(\d{1,3}\.){3}\d{1,3}$/.test(requestHost)) {
+  } else if (IS_DEVELOPMENT && requestHost && /^(\d{1,3}\.){3}\d{1,3}$/.test(requestHost)) {
     opts.domain = requestHost;
   }
   return opts;
diff --git a/app/lib/env.ts b/app/lib/env.ts
index 8c5f626..b393cd7 100644
--- a/app/lib/env.ts
+++ b/app/lib/env.ts
@@ -1,5 +1,5 @@
-const isDev = process.env.NODE_ENV === "development";
+import { IS_DEVELOPMENT } from "@/config/runtime-env";
 
 export const SITE_URL =
   process.env.NEXT_PUBLIC_SITE_URL ||
-  (isDev ? "http://localhost:3001" : "https://nomadcna.cn");
+  (IS_DEVELOPMENT ? "http://localhost:3001" : "https://nomadcna.cn");
diff --git a/backend/.env.example b/backend/.env.example
index 760ec5b..cfa8315 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -1,3 +1,4 @@
+APP_ENV=development
 PB_URL=http://127.0.0.1:8090
 PB_ADMIN_EMAIL=admin@nomadcna.local
 PB_ADMIN_PASSWORD=NomadCNA123456
diff --git a/backend/settings.py b/backend/settings.py
index 1a9ce55..a29732b 100644
--- a/backend/settings.py
+++ b/backend/settings.py
@@ -75,7 +75,8 @@ class Settings:
             )
         )
         self.upload_dir = Path(os.getenv("UPLOAD_DIR", "backend/uploads"))
-        self.dev_auto_pay = _bool_env("DEV_AUTO_PAY", "true")
+        self.app_env = os.getenv("APP_ENV", "development").strip().lower()
+        self.dev_auto_pay = _bool_env("DEV_AUTO_PAY", "false")
         self.site_id = os.getenv("SITE_ID") or os.getenv("NEXT_PUBLIC_SITE_ID") or "meetup"
         self.base_url = (
             os.getenv("API_PUBLIC_BASE_URL")
diff --git a/cnomadcna.sh b/cnomadcna.sh
index 15ffa8b..a232d1e 100755
--- a/cnomadcna.sh
+++ b/cnomadcna.sh
@@ -4,6 +4,8 @@ set -euo pipefail
 cd "$(dirname "$0")"
 
 export PATH="/usr/local/bin:/usr/bin:/bin"
+export APP_ENV=production
+export NEXT_PUBLIC_APP_ENV=production
 export NODE_ENV=production
 export HOSTNAME="${NEXT_HOSTNAME:-0.0.0.0}"
 export PORT="${PORT:-4002}"
diff --git a/config/digital/domain.config.ts b/config/digital/domain.config.ts
index 2ebebdc..2ee4723 100644
--- a/config/digital/domain.config.ts
+++ b/config/digital/domain.config.ts
@@ -10,21 +10,21 @@
  * - NEXT_PUBLIC_SITE_URL: 站点根地址
  */
 
-const isDev = process.env.NODE_ENV === "development";
+import { IS_DEVELOPMENT, IS_PRODUCTION } from "../runtime-env";
 
 /** 根域名，用于推导默认值。如 nomadro.com、hackrobot.cn */
 export const ROOT_DOMAIN =
   process.env.ROOT_DOMAIN || process.env.NEXT_PUBLIC_ROOT_DOMAIN || "hackrobot.cn";
 
-/** 支付 API 默认地址。生产环境固定为 api.${ROOT_DOMAIN}，避免 .env 中 127.0.0.1 导致支付失败 */
-export const DEFAULT_PAYMENT_API_URL = isDev
+/** 支付 API 默认地址。运行环境由 APP_ENV / NEXT_PUBLIC_APP_ENV 显式控制 */
+export const DEFAULT_PAYMENT_API_URL = IS_DEVELOPMENT
   ? "http://127.0.0.1:8007"
   : `https://api.${ROOT_DOMAIN}`;
 
-/** 生产环境若 PAYMENT_API_URL 指向 localhost，则忽略并使用 api 域名 */
+/** 线上环境若 PAYMENT_API_URL 指向 localhost，则忽略并使用 api 域名 */
 export function resolvePaymentApiUrl(): string {
   const url = process.env.PAYMENT_API_URL || DEFAULT_PAYMENT_API_URL;
-  if (!isDev && /^(https?:\/\/)?(127\.0\.0\.1|localhost)(:\d+)?(\/|$)/i.test(url)) {
+  if (IS_PRODUCTION && /^(https?:\/\/)?(127\.0\.0\.1|localhost)(:\d+)?(\/|$)/i.test(url)) {
     return `https://api.${ROOT_DOMAIN}`;
   }
   return url;
@@ -34,7 +34,7 @@ export function resolvePaymentApiUrl(): string {
 export const DEFAULT_POCKETBASE_URL = `https://pocketbase.${ROOT_DOMAIN}`;
 
 /** 站点根地址默认值 */
-export const DEFAULT_SITE_URL = isDev
+export const DEFAULT_SITE_URL = IS_DEVELOPMENT
   ? "http://localhost:3001"
   : `https://${ROOT_DOMAIN}`;
 
diff --git a/config/digital/services.config.ts b/config/digital/services.config.ts
index d537688..442029b 100644
--- a/config/digital/services.config.ts
+++ b/config/digital/services.config.ts
@@ -5,8 +5,8 @@
  */
 
 import { getThemeConfig } from "./site.config";
+import { IS_DEVELOPMENT } from "../runtime-env";
 import {
-  DEFAULT_PAYMENT_API_URL,
   resolvePaymentApiUrl,
   DEFAULT_POCKETBASE_URL,
   DEFAULT_MINIO_HOST,
@@ -64,7 +64,6 @@ export interface ServicesConfig {
   minio: MinioConfig;
 }
 
-const isDev = process.env.NODE_ENV === "development";
 const PAYJSAPI_PORT = process.env.PAYJSAPI_PORT || "8007";
 
 /** 站点标识，用于 VIP 按站点隔离。digital 专题站（ai.xx/android.xx）各自独立，如 digital_ai、digital_android */
@@ -75,7 +74,7 @@ export const VIP_MASTER_SITE_ID = "vip";
 
 export function getApiUrlFromRequest(hostHeader: string | null): string | null {
   if (!hostHeader) return null;
-  if (!isDev) return resolvePaymentApiUrl();
+  if (!IS_DEVELOPMENT) return resolvePaymentApiUrl();
   const hostname = hostHeader.split(":")[0];
   return `http://${hostname}:${PAYJSAPI_PORT}`;
 }
diff --git a/config/runtime-env.ts b/config/runtime-env.ts
new file mode 100644
index 0000000..790d06a
--- /dev/null
+++ b/config/runtime-env.ts
@@ -0,0 +1,17 @@
+export type RuntimeEnv = "development" | "production" | "test";
+
+function normalizeRuntimeEnv(value?: string): RuntimeEnv {
+  const normalized = value?.trim().toLowerCase();
+  if (normalized === "production" || normalized === "prod") return "production";
+  if (normalized === "test") return "test";
+  return "development";
+}
+
+export const RUNTIME_ENV = normalizeRuntimeEnv(
+  process.env.APP_ENV ||
+    process.env.NEXT_PUBLIC_APP_ENV ||
+    process.env.NODE_ENV
+);
+
+export const IS_DEVELOPMENT = RUNTIME_ENV === "development";
+export const IS_PRODUCTION = RUNTIME_ENV === "production";