diff --git a/web/src/views/Home.vue b/web/src/views/Home.vue
index 1ad47e0..e33279e 100644
--- a/web/src/views/Home.vue
+++ b/web/src/views/Home.vue
@@ -1,10 +1,7 @@
 <template>
   <div class="landing">
     <div class="space-bg"></div>
-    <div class="stars" ref="starsEl"></div>
-    <div class="planet planet-1"></div>
-    <div class="planet planet-2"></div>
-    <div class="planet planet-3"></div>
+    <div ref="starsEl" class="stars" aria-hidden="true"></div>
 
     <nav class="navbar" :style="navbarStyle">
       <a href="#intro" class="logo-space" @click.prevent="scrollToSel('#intro')">
@@ -366,9 +363,32 @@ function socialListImgSrc(item) {
   return list[i]
 }
 
-const starsEl = ref(null)
-let cometTimer = null
 const scrollY = ref(0)
+const starsEl = ref(null)
+
+function addStars() {
+  const host = starsEl.value
+  if (!host) return
+  host.innerHTML = ''
+  const w = window.innerWidth
+  const h = window.innerHeight
+  const n = Math.min(220, Math.max(80, Math.floor((w * h) / 10000)))
+  const frag = document.createDocumentFragment()
+  for (let i = 0; i < n; i++) {
+    const star = document.createElement('span')
+    star.className = 'star'
+    const r = Math.random()
+    const size = r < 0.82 ? 1 : r < 0.97 ? 2 : 3
+    star.style.width = `${size}px`
+    star.style.height = `${size}px`
+    star.style.left = `${Math.random() * 100}%`
+    star.style.top = `${Math.random() * 100}%`
+    star.style.animationDuration = `${2.2 + Math.random() * 4}s`
+    star.style.animationDelay = `${Math.random() * 5}s`
+    frag.appendChild(star)
+  }
+  host.appendChild(frag)
+}
 const openFaq = ref(0)
 /** 官网 site_id（bootstrap 已拉路由时此处已有值；产品视频：静态优先，否则 promotion-media API） */
 const webSiteId = ref(getCachedWebSiteId() || '')
@@ -648,43 +668,6 @@ function onScroll() {
   scrollY.value = window.pageYOffset || 0
 }
 
-function addStars() {
-  if (!starsEl.value) return
-  for (let i = 0; i < 200; i++) {
-    const star = document.createElement('div')
-    star.className = 'star'
-    star.style.left = Math.random() * 100 + '%'
-    star.style.top = Math.random() * 100 + '%'
-    const size = Math.random() * 2 + 1
-    star.style.width = size + 'px'
-    star.style.height = size + 'px'
-    star.style.setProperty('--duration', (Math.random() * 3 + 2) + 's')
-    star.style.setProperty('--min-opacity', Math.random() * 0.3 + 0.1)
-    star.style.animationDelay = Math.random() * 5 + 's'
-    starsEl.value.appendChild(star)
-  }
-}
-
-function createComet() {
-  const root = document.getElementById('app') || document.body
-  const comet = document.createElement('div')
-  comet.className = 'comet'
-  comet.style.top = Math.random() * 60 + '%'
-  comet.style.left = '-100px'
-  comet.style.transform = 'rotate(' + (Math.random() * 30 - 15) + 'deg)'
-  root.appendChild(comet)
-  let position = -100
-  const speed = Math.random() * 3 + 2
-  function move() {
-    position += speed
-    comet.style.left = position + 'px'
-    comet.style.opacity = (position > window.innerWidth * 0.3 && position < window.innerWidth * 0.7) ? 1 : 0
-    if (position < window.innerWidth + 100) requestAnimationFrame(move)
-    else comet.remove()
-  }
-  move()
-}
-
 async function fetchHomepage() {
   try {
     const url = apiBase ? `${apiBase}/api/web/homepage` : '/api/web/homepage'
@@ -720,7 +703,6 @@ onMounted(() => {
   document.addEventListener('keydown', onDocKeydown)
   nextTick(() => {
     addStars()
-    cometTimer = setInterval(createComet, 3000)
     const hash = window.location.hash
     if (hash) {
       setTimeout(() => {
@@ -731,7 +713,6 @@ onMounted(() => {
 })
 
 onUnmounted(() => {
-  if (cometTimer) clearInterval(cometTimer)
   window.removeEventListener('scroll', onScroll)
   document.removeEventListener('keydown', onDocKeydown)
 })
@@ -775,41 +756,26 @@ onUnmounted(() => {
     radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0) 0%, var(--space-dark) 100%);
 }
 
-.stars { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
-.landing .stars .star {
-  position: absolute; background: #fff; border-radius: 50%;
-  animation: landing-twinkle var(--duration, 2.5s) ease-in-out infinite;
-  will-change: opacity, transform;
+.stars {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  z-index: 1;
+  pointer-events: none;
+  overflow: hidden;
+}
+.stars .star {
+  position: absolute;
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.95);
+  box-shadow: 0 0 3px rgba(255, 255, 255, 0.7);
+  animation: landing-twinkle ease-in-out infinite;
 }
 @keyframes landing-twinkle {
-  0%, 100% { opacity: var(--min-opacity, 0.3); transform: scale(1); }
-  50% { opacity: 1; transform: scale(1.2); }
-}
-
-.comet {
-  position: fixed; width: 120px; height: 3px; z-index: 1; pointer-events: none;
-  background: linear-gradient(90deg, rgba(255,255,255,0.9) 0%, transparent 100%);
-  border-radius: 2px; box-shadow: 0 0 10px rgba(255,255,255,0.6);
-}
-
-.planet { position: fixed; border-radius: 50%; z-index: 2; pointer-events: none; }
-.planet-1 {
-  width: 300px; height: 300px; top: 10%; right: -100px;
-  background: linear-gradient(135deg, var(--nebula-purple), #1a0a2e);
-  box-shadow: inset -30px -30px 60px rgba(0,0,0,0.5), 0 0 60px rgba(74,26,107,0.4);
-  opacity: 0.6;
-}
-.planet-2 {
-  width: 150px; height: 150px; bottom: 20%; left: -50px;
-  background: linear-gradient(135deg, var(--space-blue), #0a1520);
-  box-shadow: inset -20px -20px 40px rgba(0,0,0,0.5), 0 0 40px rgba(30,58,95,0.4);
-  opacity: 0.5;
-}
-.planet-3 {
-  width: 80px; height: 80px; top: 60%; right: 15%;
-  background: linear-gradient(135deg, #ff6b35, #8b3a00);
-  box-shadow: inset -10px -10px 20px rgba(0,0,0,0.5), 0 0 30px rgba(255, 107, 53, 0.4);
-  opacity: 0.4;
+  0%, 100% { opacity: 0.35; transform: scale(1); }
+  50% { opacity: 1; transform: scale(1.05); }
 }
 
 .navbar {
@@ -949,7 +915,7 @@ onUnmounted(() => {
 .portal-shell {
   position: relative;
   z-index: 10;
-  background: linear-gradient(180deg, rgba(10, 12, 22, 0.4) 0%, rgba(18, 22, 38, 0.92) 8%, rgba(20, 24, 40, 0.98) 100%);
+  background: transparent;
   padding: 24px 0 4px;
 }
 .home-portal-shell {
@@ -1564,7 +1530,6 @@ onUnmounted(() => {
 }
 @media (max-width: 768px) {
   .navbar { padding: 15px 20px; }
-  .planet { display: none; }
   .stats-container { grid-template-columns: 1fr; }
   .testimonials-grid { grid-template-columns: 1fr; }
 }