diff --git a/public/frontend/assets/event-site-late.css b/public/frontend/assets/event-site-late.css
new file mode 100644
index 0000000..9775a04
--- /dev/null
+++ b/public/frontend/assets/event-site-late.css
@@ -0,0 +1,42 @@
+.tracks .section-title::before,
+.roadmap .section-title::before {
+  background: url("title-precision-bracket-v1.png") left bottom / 100% 100% no-repeat;
+}
+.awards {
+  background:
+    linear-gradient(90deg,rgba(31,7,92,.48) 0%,rgba(14,42,132,.28) 46%,rgba(0,88,142,.16) 100%),
+    linear-gradient(180deg,rgba(8,17,83,.06) 0%,rgba(5,22,84,.25) 100%),
+    url("generated/awards-accelerator-gradient-wave-v2.png?v=1") center / cover no-repeat !important;
+}
+@media (max-width: 680px) {
+  .awards {
+    background:
+      linear-gradient(180deg,rgba(30,8,96,.44),rgba(4,55,132,.26)),
+      url("generated/awards-accelerator-gradient-wave-v2.png?v=1") 58% center / auto 100% no-repeat !important;
+  }
+}
+.audience-tracks-layout .tracks-mesh {
+  background: url("generated/photonics-value-chain-mesh-transparent-v1.png?v=2") center / cover no-repeat;
+}
+.roadmap {
+  background:
+    url("generated/roadmap-pale-blue-dotmaps-refined-transparent-v5.png?v=5") center / cover no-repeat,
+    radial-gradient(ellipse 72% 84% at 14% 4%,rgba(255,255,255,.96) 0%,rgba(248,251,255,.72) 58%,transparent 100%),
+    linear-gradient(180deg,#f8fbff 0%,#f3f7fc 100%) !important;
+}
+.roadmap .timeline::after {
+  background:
+    linear-gradient(180deg,rgba(255,255,255,.08),transparent 22%,rgba(2,18,66,.08) 100%),
+    url("generated/roadmap-pale-blue-dotmaps-full-transparent-v4.png?v=4") center / cover no-repeat;
+}
+.audience-tracks-layout .audience-focus {
+  background: #164fae url("target-projects-network-card-clean.png") center / cover no-repeat !important;
+}
+.audience-tracks-layout .audience::before {
+  background-image: url("audience-global-network-transparent-v2.png") !important;
+}
+@media (min-width: 768px) {
+  .hero-map-dots {
+    background: url("generated/roadmap-pale-blue-dotmaps-full-transparent-v4.png?v=4") center / 100% 100% no-repeat;
+  }
+}
diff --git a/public/frontend/event-site-en.html b/public/frontend/event-site-en.html
index d508074..c5e56a4 100644
--- a/public/frontend/event-site-en.html
+++ b/public/frontend/event-site-en.html
@@ -9,21 +9,35 @@
   <style>
     @font-face {
       font-family: "Event Heiti";
-      src: local("Heiti SC"), local("STHeiti"), local("黑体"), local("SimHei");
+      src: local("Heiti SC"), local("STHeiti"), local("PingFang SC"), local("黑体"), local("SimHei"),
+           url("assets/fonts/SourceHanSansSC-Regular-gb2312.woff2?v=20260828") format("woff2");
       font-weight: 400 900;
       font-style: normal;
+      font-display: swap;
     }
     @font-face {
       font-family: "Event Songti";
-      src: local("Songti SC"), local("STSong"), local("宋体"), local("SimSun"), local("NSimSun");
+      src: local("Songti SC"), local("STSong"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-Regular-gb2312.woff2?v=20260828") format("woff2");
       font-weight: 400;
       font-style: normal;
+      font-display: swap;
     }
     @font-face {
       font-family: "Event Songti";
-      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun");
-      font-weight: 600 900;
+      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-SemiBold-gb2312.woff2?v=20260828") format("woff2");
+      font-weight: 600;
+      font-style: normal;
+      font-display: swap;
+    }
+    @font-face {
+      font-family: "Event Songti";
+      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-Bold-gb2312.woff2?v=20260828") format("woff2");
+      font-weight: 700 900;
       font-style: normal;
+      font-display: swap;
     }
     :root {
       --blue: #0094dc;
diff --git a/public/frontend/event-site.html b/public/frontend/event-site.html
index 34c5e1b..b337065 100644
--- a/public/frontend/event-site.html
+++ b/public/frontend/event-site.html
@@ -9,22 +9,33 @@
   <style>
     @font-face {
       font-family: "Event Heiti";
-      src: local("Heiti SC"), local("STHeiti"), local("PingFang SC"), local("PingFangSC-Regular"), local("黑体"), local("SimHei");
+      src: local("Heiti SC"), local("STHeiti"), local("PingFang SC"), local("PingFangSC-Regular"), local("黑体"), local("SimHei"),
+           url("assets/fonts/SourceHanSansSC-Regular-gb2312.woff2?v=20260828") format("woff2");
       font-weight: 400 900;
       font-style: normal;
       font-display: swap;
     }
     @font-face {
       font-family: "Event Songti";
-      src: local("Songti SC"), local("STSongti-SC-Regular"), local("STSong"), local("宋体"), local("SimSun"), local("NSimSun");
+      src: local("Songti SC"), local("STSongti-SC-Regular"), local("STSong"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-Regular-gb2312.woff2?v=20260828") format("woff2");
       font-weight: 400;
       font-style: normal;
       font-display: swap;
     }
     @font-face {
       font-family: "Event Songti";
-      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun");
-      font-weight: 600 900;
+      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-SemiBold-gb2312.woff2?v=20260828") format("woff2");
+      font-weight: 600;
+      font-style: normal;
+      font-display: swap;
+    }
+    @font-face {
+      font-family: "Event Songti";
+      src: local("Songti SC Bold"), local("STSongti-SC-Bold"), local("宋体"), local("SimSun"), local("NSimSun"),
+           url("assets/fonts/SourceHanSerifSC-Bold-gb2312.woff2?v=20260828") format("woff2");
+      font-weight: 700 900;
       font-style: normal;
       font-display: swap;
     }
@@ -5648,9 +5659,7 @@
         <div class="hero-banner hero-banner--landmarks is-active">
           <img src="assets/generated/hero-three-landmarks-clean-field-v16.png?v=20260826" alt="" fetchpriority="high" decoding="async">
         </div>
-        <div class="hero-banner hero-banner--photonic">
-          <img src="assets/generated/hero-photonic-youth-blue-purple-balanced-v7-sharp-trails-4k.jpg?v=20260826" alt="" decoding="async">
-        </div>
+        <div class="hero-banner hero-banner--photonic"></div>
       </div>
       <div class="hero-map-dots" aria-hidden="true"></div>
       <img class="hero-orbit-beams" src="assets/generated/hero-reference-beams-v1.png?v=20260826" alt="" aria-hidden="true" decoding="async">
@@ -5696,9 +5705,9 @@
           </div>
           <div class="audience-detail">
             <div class="audience-types" aria-label="参赛主体类型">
-              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-enterprise.svg" alt="" loading="lazy"><div><strong>科技企业</strong><p>光通信细分领域创业项目，目前已具备一定的技术储备和市场规模。</p></div></div>
-              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-university.svg" alt="" loading="lazy"><div><strong>高校团队</strong><p>关注产学研成果转化类项目，目前已进行概念验证，希望进行市场化运作。</p></div></div>
-              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-institute.svg" alt="" loading="lazy"><div><strong>科研院所</strong><p>聚焦光通信产业领域前沿技术类项目，未来可引领技术市场发展方向。</p></div></div>
+              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-enterprise.svg" alt=""><div><strong>科技企业</strong><p>光通信细分领域创业项目，目前已具备一定的技术储备和市场规模。</p></div></div>
+              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-university.svg" alt=""><div><strong>高校团队</strong><p>关注产学研成果转化类项目，目前已进行概念验证，希望进行市场化运作。</p></div></div>
+              <div class="audience-type" tabindex="0"><img src="assets/icons/audience-institute.svg" alt=""><div><strong>科研院所</strong><p>聚焦光通信产业领域前沿技术类项目，未来可引领技术市场发展方向。</p></div></div>
             </div>
           </div>
         </div>
@@ -5857,12 +5866,15 @@
 
       function ensureBannerImage(banner) {
         if (!banner) return;
-        var img = banner.querySelector("img[data-src]");
-        if (!img) return;
-        var real = img.getAttribute("data-src");
-        if (!real) return;
-        img.setAttribute("src", real);
-        img.removeAttribute("data-src");
+        var img = banner.querySelector("img");
+        if (img) return;
+        var base = (document.querySelector("script[src*='prototype-scale']") || {}).src || "";
+        base = base.replace(/prototype-scale\.js.*$/, "") || "/frontend/assets/";
+        img = document.createElement("img");
+        img.alt = "";
+        img.decoding = "async";
+        img.src = base + "generated/hero-photonic-youth-blue-purple-balanced-v7-sharp-trails-4k.jpg?v=20260826";
+        banner.appendChild(img);
       }
 
       function setOrbitVisible(visible) {
@@ -5905,32 +5917,35 @@
       }, 120);
     });
 
-    window.addEventListener("load", function () {
-      window.setTimeout(function () {
-        var ua = navigator.userAgent || "";
-        var isIOS = /iP(hone|ad|od)/.test(ua) || (/\bMac OS X\b/.test(ua) && "ontouchend" in document);
-        var css = "";
-        if (!isIOS) {
-          css += '@font-face{font-family:"Event Heiti";src:url("assets/fonts/SourceHanSansSC-Regular-gb2312.woff2?v=20260828") format("woff2");font-weight:400 900;font-display:swap;}';
-          css += '@font-face{font-family:"Event Songti";src:url("assets/fonts/SourceHanSerifSC-Regular-gb2312.woff2?v=20260828") format("woff2");font-weight:400;font-display:swap;}';
-          css += '@font-face{font-family:"Event Songti";src:url("assets/fonts/SourceHanSerifSC-SemiBold-gb2312.woff2?v=20260828") format("woff2");font-weight:600;font-display:swap;}';
-          css += '@font-face{font-family:"Event Songti";src:url("assets/fonts/SourceHanSerifSC-Bold-gb2312.woff2?v=20260828") format("woff2");font-weight:700 900;font-display:swap;}';
+    (function () {
+      var done = false;
+      function assetBase() {
+        var node = document.querySelector("script[src*='prototype-scale']");
+        if (node && node.src) return node.src.replace(/prototype-scale\.js.*$/, "");
+        return "/frontend/assets/";
+      }
+      function loadLate() {
+        if (done) return;
+        done = true;
+        var base = assetBase();
+        var late = document.createElement("link");
+        late.rel = "stylesheet";
+        late.href = base + "event-site-late.css?v=20260828";
+        document.head.appendChild(late);
+
+        var photonic = document.querySelector(".hero-banner--photonic");
+        if (photonic && !photonic.querySelector("img")) {
+          var photo = document.createElement("img");
+          photo.alt = "";
+          photo.decoding = "async";
+          photo.src = base + "generated/hero-photonic-youth-blue-purple-balanced-v7-sharp-trails-4k.jpg?v=20260826";
+          photonic.appendChild(photo);
         }
-        css += '.tracks .section-title::before,.roadmap .section-title::before{background:url("assets/title-precision-bracket-v1.png") left bottom / 100% 100% no-repeat;}';
-        css += '.awards{background:linear-gradient(90deg,rgba(31,7,92,.48) 0%,rgba(14,42,132,.28) 46%,rgba(0,88,142,.16) 100%),linear-gradient(180deg,rgba(8,17,83,.06) 0%,rgba(5,22,84,.25) 100%),url("assets/generated/awards-accelerator-gradient-wave-v2.png?v=1") center / cover no-repeat !important;}';
-        css += '@media (max-width:680px){.awards{background:linear-gradient(180deg,rgba(30,8,96,.44),rgba(4,55,132,.26)),url("assets/generated/awards-accelerator-gradient-wave-v2.png?v=1") 58% center / auto 100% no-repeat !important;}}';
-        css += '.audience-tracks-layout .tracks-mesh{background:url("assets/generated/photonics-value-chain-mesh-transparent-v1.png?v=2") center / cover no-repeat;}';
-        css += '.roadmap{background:url("assets/generated/roadmap-pale-blue-dotmaps-refined-transparent-v5.png?v=5") center / cover no-repeat,radial-gradient(ellipse 72% 84% at 14% 4%,rgba(255,255,255,.96) 0%,rgba(248,251,255,.72) 58%,transparent 100%),linear-gradient(180deg,#f8fbff 0%,#f3f7fc 100%) !important;}';
-        css += '.roadmap .timeline::after{background:linear-gradient(180deg,rgba(255,255,255,.08),transparent 22%,rgba(2,18,66,.08) 100%),url("assets/generated/roadmap-pale-blue-dotmaps-full-transparent-v4.png?v=4") center / cover no-repeat;}';
-        css += '.audience-tracks-layout .audience-focus{background:#164fae url("assets/target-projects-network-card-clean.png") center / cover no-repeat !important;}';
-        css += '.audience-tracks-layout .audience::before{background-image:url("assets/audience-global-network-transparent-v2.png") !important;}';
-        css += '@media (min-width:768px){.hero-map-dots{background:url("assets/generated/roadmap-pale-blue-dotmaps-full-transparent-v4.png?v=4") center / 100% 100% no-repeat;}}';
-        var style = document.createElement("style");
-        style.setAttribute("data-deferred-assets", "1");
-        style.textContent = css;
-        document.head.appendChild(style);
-      }, 280);
-    });
+      }
+      function startLate() { window.setTimeout(loadLate, 60); }
+      if (document.readyState === "complete") startLate();
+      else window.addEventListener("load", startLate);
+    }());
   </script>
   <script>
 
diff --git a/tests/Feature/ParticipantApplicationSaveTest.php b/tests/Feature/ParticipantApplicationSaveTest.php
index cddfba6..9fe4258 100644
--- a/tests/Feature/ParticipantApplicationSaveTest.php
+++ b/tests/Feature/ParticipantApplicationSaveTest.php
@@ -4,6 +4,7 @@ namespace Tests\Feature;
 
 use App\Models\Application;
 use App\Models\Competition;
+use App\Models\FormSchemaDefinition;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Laravel\Sanctum\Sanctum;
@@ -91,6 +92,23 @@ class ParticipantApplicationSaveTest extends TestCase
             'status' => 'draft',
         ]);
 
+        $schema = FormSchemaDefinition::query()->create([
+            'competition_id' => $competition->id,
+            'purpose' => FormSchemaDefinition::PURPOSE_SIGNUP,
+            'name' => '报名表',
+            'version' => 1,
+            'is_published' => true,
+            'schema_json' => [
+                [
+                    'key' => 'contact_email',
+                    'type' => 'email',
+                    'label' => '注册邮箱',
+                    'prefill_from' => 'user.email',
+                ],
+            ],
+        ]);
+        $competition->update(['form_schema_id' => $schema->id]);
+
         Sanctum::actingAs($user);
 
         $this->postJson('/api/applications/current/save?competition_slug=xxf-prefill', [