docs: add back link to ViteConf replay (#14972)

docs/.vitepress/theme/components/AsideSponsors.vue

@@ -18,5 +18,70 @@ const sponsors = computed(() => {
 </script>
 
 <template>
+  <a
+    class="viteconf"
+    href="https://viteconf.org/23/replay?utm=vite-sidebar"
+    target="_blank"
+  >
+    <img width="22" height="22" src="/viteconf.svg" />
+    <span>
+      <p class="extra-info">Beyond Fast</p>
+      <p class="heading">ViteConf 2023</p>
+      <p class="extra-info">Watch the replay!</p>
+    </span>
+  </a>
   <VPDocAsideSponsors v-if="data" :data="sponsors" />
 </template>
+
+<style>
+.viteconf {
+  margin-top: 1rem;
+  margin-bottom: 1rem;
+  border-radius: 14px;
+  padding-top: 0.4rem;
+  padding-bottom: 0.4rem;
+  position: relative;
+  font-size: 0.9rem;
+  font-weight: 700;
+  line-height: 1.1rem;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  gap: 1rem;
+  background-color: var(--vp-c-bg-alt);
+  border: 2px solid var(--vp-c-bg-alt);
+  transition: border-color 0.5s;
+}
+.viteconf:hover {
+  border: 2px solid var(--vp-c-brand-light);
+}
+.viteconf img {
+  transition: transform 0.5s;
+  transform: scale(1.25);
+}
+.viteconf:hover img {
+  transform: scale(1.75);
+}
+.viteconf .heading {
+  background-image: linear-gradient(
+    120deg,
+    #b047ff 16%,
+    var(--vp-c-brand-lighter),
+    var(--vp-c-brand-lighter)
+  );
+  background-clip: text;
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+.viteconf .extra-info {
+  color: var(--vp-c-text-1);
+  opacity: 0;
+  font-size: 0.7rem;
+  padding-left: 0.1rem;
+  transition: opacity 0.5s;
+}
+.viteconf:hover .extra-info {
+  opacity: 0.9;
+}
+</style>

docs/index.md

@@ -21,6 +21,9 @@ hero:
     - theme: alt
       text: View on GitHub
       link: https://github.com/vitejs/vite
+    - theme: brand
+      text: 🎉 ViteConf 23!
+      link: https://viteconf.org/23/replay?utm=vite-homepage
 
 features:
   - icon: 💡