diff --git a/apps/app-frontend/src/App.vue b/apps/app-frontend/src/App.vue
index a687a76..811870e 100644
--- a/apps/app-frontend/src/App.vue
+++ b/apps/app-frontend/src/App.vue
@@ -92,6 +92,7 @@ import NavRail from '@/components/ui/NavRail.vue'
 import OnboardingOverlay from '@/components/ui/onboarding/OnboardingOverlay.vue'
 import QuickInstanceSwitcher from '@/components/ui/QuickInstanceSwitcher.vue'
 import SkinSiteSessionFrame from '@/components/ui/SkinSiteSessionFrame.vue'
+import StartupAnnouncementModal from '@/components/ui/StartupAnnouncementModal.vue'
 import SplashScreen from '@/components/ui/SplashScreen.vue'
 import WindowControls from '@/components/ui/WindowControls.vue'
 import { useCheckDisableMouseover } from '@/composables/macCssFix.js'
@@ -498,6 +499,7 @@ onMounted(async () => {
 	checkUpdates()
 	void warnIfRunningElevated()
 	startDirectLinkSync()
+	maybeShowStartupAnnouncement()
 })
 
 let directLinkSync: (() => Promise<void>) | undefined
@@ -1538,6 +1540,19 @@ const updateToPlayModal = ref()
 
 const modrinthLoginFlowWaitModal = ref()
 
+const startupAnnouncementModal = ref<InstanceType<typeof StartupAnnouncementModal> | null>(null)
+const STARTUP_ANNOUNCEMENT_KEY = 'starlight-startup-announcement-seen-v1'
+
+function maybeShowStartupAnnouncement() {
+	try {
+		if (localStorage.getItem(STARTUP_ANNOUNCEMENT_KEY)) return
+		localStorage.setItem(STARTUP_ANNOUNCEMENT_KEY, '1')
+	} catch (error) {
+		console.warn('Failed to read/write startup announcement flag', error)
+	}
+	startupAnnouncementModal.value?.show()
+}
+
 // ── Drop import system ──────────────────────────────────────────────────
 const dropImport = useDropImport({
 	notificationManager,
@@ -2167,6 +2182,7 @@ provideAppUpdateDownloadProgress(appUpdateDownload)
 	<SplashScreen v-if="!stateFailed" ref="splashScreen" data-tauri-drag-region />
 	<SkinSiteSessionFrame v-if="stateInitialized" />
 	<InstancePlayerModal v-if="stateInitialized" />
+	<StartupAnnouncementModal ref="startupAnnouncementModal" />
 	<div id="teleports"></div>
 	<div
 		v-if="stateInitialized && themeStore.customBackgroundPath && !themeStore.transparentBackground"
diff --git a/apps/app-frontend/src/components/ui/StartupAnnouncementModal.vue b/apps/app-frontend/src/components/ui/StartupAnnouncementModal.vue
new file mode 100644
index 0000000..fafad29
--- /dev/null
+++ b/apps/app-frontend/src/components/ui/StartupAnnouncementModal.vue
@@ -0,0 +1,132 @@
+<script setup lang="ts">
+import { ExternalIcon, UsersIcon, XIcon } from '@modrinth/assets'
+import { Avatar, ButtonStyled, NewModal } from '@modrinth/ui'
+import { openUrl } from '@tauri-apps/plugin-opener'
+import { ref } from 'vue'
+
+import { teamMembers } from '@/data/about'
+
+const modal = ref<InstanceType<typeof NewModal>>()
+
+const SERVER_IPS: { label: string; host: string }[] = [
+	{ label: '直连 IPv4', host: 'slv4.starlight.cool' },
+	{ label: '直连 IPv6', host: 'slv6.starlight.cool' },
+	{ label: '北方代理 IPv4', host: 'north.starlight.cool' },
+	{ label: '南方代理 IPv4', host: 'south.starlight.cool' },
+	{ label: '美国代理 IPv4', host: 'usa.starlight.cool' },
+]
+
+const RULES_URL = 'https://kdocs.cn/l/cmT6lVdryHJu'
+const QQ_GROUP = '535392227'
+
+function show() {
+	modal.value?.show()
+}
+
+function hide() {
+	modal.value?.hide()
+}
+
+function openLink(url: string) {
+	void openUrl(url)
+}
+</script>
+
+<template>
+	<NewModal ref="modal" header="欢迎使用 Starlight Launcher" width="640px" max-width="640px">
+		<div class="flex min-w-0 flex-col gap-5">
+			<!-- 1. 开发组 -->
+			<section class="flex flex-col gap-2">
+				<h3 class="m-0 flex items-center gap-2 text-sm font-semibold text-contrast">
+					<UsersIcon class="size-4 text-secondary" />
+					开发团队
+				</h3>
+				<p class="m-0 text-sm text-secondary">
+					本启动器由
+					<span class="font-semibold text-contrast">Ax_Tps</span>
+					和
+					<span class="font-semibold text-contrast">Disy920</span>
+					基于 Axolotl 开发。
+				</p>
+				<div class="grid gap-3 sm:grid-cols-2">
+					<a
+						v-for="member in teamMembers"
+						:key="member.name"
+						:href="member.url ?? undefined"
+						target="_blank"
+						rel="noopener noreferrer"
+						class="flex min-w-0 items-center gap-3 rounded-xl bg-surface-4 p-3 transition-colors hover:bg-surface-5"
+						@click.prevent="member.url && openLink(member.url)"
+					>
+						<Avatar :src="member.avatarUrl" :alt="member.name" size="2.5rem" circle no-shadow />
+						<span class="min-w-0 flex-1 truncate font-semibold text-contrast">{{ member.name }}</span>
+						<ExternalIcon v-if="member.url" class="size-4 shrink-0 text-secondary" />
+					</a>
+				</div>
+			</section>
+
+			<!-- 2. SLS 专属 -->
+			<section class="flex flex-col gap-2">
+				<h3 class="m-0 text-sm font-semibold text-contrast">Starlight 专用启动器</h3>
+				<p class="m-0 text-sm text-secondary">
+					该启动器为 Starlight 专用。如果您还未加入 StarLight，请前往我们的 QQ 审核群
+					<button
+						type="button"
+						class="cursor-pointer border-0 bg-transparent p-0 font-semibold text-brand underline"
+						@click="openLink(`https://qm.qq.com/q/${QQ_GROUP}`)"
+					>
+						{{ QQ_GROUP }}
+					</button>
+					。
+				</p>
+			</section>
+
+			<!-- 3. 服规更新 -->
+			<section class="flex flex-col gap-2">
+				<h3 class="m-0 text-sm font-semibold text-contrast">StarLight 总则章程更新</h3>
+				<p class="m-0 text-sm text-secondary">
+					StarLight 总则章程（即“服规”）更新至第 15 版。该版服规进一步完善与严格了聚落建立、改组、招新与运营的全链条要求，请大家注意阅读并遵守！本版服规自
+					2026 年 9 月 27 日 0 点起开始试行。
+				</p>
+				<button
+					type="button"
+					class="flex w-fit cursor-pointer items-center gap-1 border-0 bg-transparent p-0 text-sm font-semibold text-brand underline"
+					@click="openLink(RULES_URL)"
+				>
+					查看服规链接
+					<ExternalIcon class="size-3.5" />
+				</button>
+			</section>
+
+			<!-- 4. 服务器连接 -->
+			<section class="flex flex-col gap-2">
+				<h3 class="m-0 text-sm font-semibold text-contrast">服务器连接</h3>
+				<p class="m-0 text-sm text-secondary">服务器目前下列几项 IP 可用：</p>
+				<ul class="m-0 flex flex-col gap-1 pl-5 text-sm text-secondary">
+					<li v-for="ip in SERVER_IPS" :key="ip.host">
+						<span class="text-contrast">{{ ip.label }}</span>
+						：<code class="text-brand">{{ ip.host }}</code>
+					</li>
+				</ul>
+				<p class="m-0 text-sm text-secondary">
+					请注意，我们优先推荐您尝试直连 IP（包括 v4 和 v6，哪个可用用哪个）。若没有出现高延迟或延迟波动严重的问题，尽量避免使用代理
+					IP（代理 IP 是流量计费的，使用会给服务器带来更大的经济压力）。
+				</p>
+				<p class="m-0 text-sm text-secondary">
+					若必须使用代理 IP，按以往经验，河北（含）以北的我国省份，在选用代理 IP 时建议优先选用北方代理，否则请使用南方代理。
+				</p>
+			</section>
+		</div>
+
+		<template #actions>
+			<div class="flex justify-end">
+				<ButtonStyled color="brand">
+					<button @click="hide">
+						<XIcon />
+						我知道了
+					</button>
+				</ButtonStyled>
+			</div>
+		</template>
+	</NewModal>
+</template>