diff --git a/public/frontend/event-site.html b/public/frontend/event-site.html
index eede1a2..b9cb2f2 100644
--- a/public/frontend/event-site.html
+++ b/public/frontend/event-site.html
@@ -28,15 +28,15 @@
       --white: #fff;
       --wrap: min(1280px, calc(100% - 64px));
       --ease: cubic-bezier(.2,.8,.2,1);
-      --font-sans: "Liberation Sans", "Noto Sans", "Noto Sans CJK SC", "Source Han Sans SC", "Noto Sans SC", sans-serif;
+      --font-sans: "Heiti SC", "STHeiti", "SimHei", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
       --font-serif: "Songti SC", "STSong", "SimSun", "NSimSun", serif;
-      --font-small: var(--font-serif);
+      --font-small: var(--font-sans);
       --font-small-size: 14px;
       --font-en: "Liberation Sans", "Noto Sans", sans-serif;
     }
     * { box-sizing: border-box; }
     html { width: 100%; min-height: 100%; overflow-x: hidden; scroll-behavior: smooth; }
-    body { margin: 0; width: 100%; min-width: 320px; min-height: 100%; overflow-x: hidden; color: var(--ink); background: #071526; font-family: var(--font-serif); -webkit-font-smoothing: antialiased; }
+    body { margin: 0; width: 100%; min-width: 320px; min-height: 100%; overflow-x: hidden; color: var(--ink); background: #071526; font-family: var(--font-sans); font-weight: 400; -webkit-font-smoothing: antialiased; }
     a { color: inherit; text-decoration: none; }
     .wrap { width: var(--wrap); margin: 0 auto; }
     .site-header { position: absolute; inset: 0 0 auto; z-index: 20; color: #fff; background: transparent; }
@@ -5356,44 +5356,23 @@
       white-space: nowrap !important;
     }
 
-    /* 中文宋体：Logo、标题、导航、单位名称、按钮、说明小字、页脚 */
+    /* 标题宋体；其余黑体且不加粗 */
     body,
+    body * {
+      font-weight: 400 !important;
+    }
+    body {
+      font-family: var(--font-sans) !important;
+    }
     .brand-logo-text,
     .hero-slogan .slogan-second,
-    .nav,
-    .nav a,
-    .hero-organizers,
-    .hero-org-row,
-    .hero-org-row dt,
-    .hero-org-row dd,
-    .hero-primary,
     .audience-tracks-layout .audience-index h2,
     .audience-tracks-layout .audience-index .audience-callout,
     .audience-tracks-layout .audience-index .audience-callout em,
     .audience-tracks-layout .tracks .section-title,
+    .audience-tracks-layout .tracks .section-title span,
     .roadmap .section-title,
-    .awards .section-title,
-    .audience-tracks-layout .audience-stage strong,
-    .audience-tracks-layout .audience-stage .stage-sub,
-    .audience-tracks-layout .audience-type strong,
-    .audience-tracks-layout .audience-type p,
-    .audience-project-copy,
-    .audience-tracks-layout .audience-focus .audience-project-copy,
-    .audience-tracks-layout .audience-detail > p,
-    .audience-tracks-layout .tracks-summary strong,
-    .audience-tracks-layout .tracks-summary p,
-    .audience-tracks-layout .tracks .track-card h3,
-    .audience-tracks-layout .tracks .track-card p,
-    .roadmap .step h3,
-    .roadmap-intro,
-    .step p,
-    .step p strong,
-    .award-card h3,
-    .award-card small,
-    .award-card p,
-    .awards-summary,
-    .footer-brand,
-    .footer-meta {
+    .awards .section-title {
       font-family: var(--font-serif) !important;
     }
     .language-switch,
@@ -5419,7 +5398,7 @@
       margin-top: auto !important;
       padding-top: 22px;
       white-space: nowrap;
-      font-family: var(--font-serif) !important;
+      font-family: var(--font-sans) !important;
       letter-spacing: .08em !important;
     }
     @media (max-width: 680px) {