docs: sync LMSYS SGLang blog cards (#32838)

Co-authored-by: sglang-bot <sglang-bot@users.noreply.github.com>

docs_new/index.mdx

@@ -89,6 +89,61 @@ It is designed to deliver low-latency and high-throughput inference across a wid
       alignItems: "stretch",
     }}
   >
+    <a
+      href="https://lmsys.org/blog/2026-07-29-mxfp8-nvfp4-rl/"
+      target="_blank"
+      rel="noopener noreferrer"
+      style={{
+        display: "block",
+        border: "1px solid rgba(128, 128, 128, 0.3)",
+        borderRadius: "0.75rem",
+        overflow: "hidden",
+        textDecoration: "none",
+        color: "inherit",
+        height: "100%",
+      }}
+    >
+      <div
+        style={{
+          aspectRatio: "16 / 9",
+          overflow: "hidden",
+          background: "rgba(128, 128, 128, 0.15)",
+        }}
+      >
+        <img
+          src="https://lmsys.org/images/blog/mxfp8-nvfp4-rl/NVFP4-dq.drawio.png"
+          alt="Towards Blackwell-Native 8-bit and 4-bit RL: End-to-End MXFP8 and NVFP4 RL in Miles"
+          style={{
+            width: "100%",
+            height: "100%",
+            objectFit: "cover",
+            objectPosition: "center",
+            display: "block",
+          }}
+        />
+      </div>
+      <div style={{ padding: "0.9rem 1rem 1rem" }}>
+        <p
+          style={{
+            margin: 0,
+            fontWeight: 600,
+            lineHeight: 1.35,
+            fontSize: "0.98rem",
+          }}
+        >
+          {"Towards Blackwell-Native 8-bit and 4-bit RL: End-to-End MXFP8 and NVFP4 RL in Miles"}
+        </p>
+        <p
+          style={{
+            margin: "0.55rem 0 0",
+            fontSize: "0.85rem",
+            opacity: 0.75,
+          }}
+        >
+          {"July 29, 2026"}
+        </p>
+      </div>
+    </a>
     <a
       href="https://lmsys.org/blog/2026-07-27-kimi-k3-day0-support/"
       target="_blank"
@@ -364,61 +419,6 @@ It is designed to deliver low-latency and high-throughput inference across a wid
         </p>
       </div>
     </a>
-    <a
-      href="https://lmsys.org/blog/2026-07-06-dspark-sglang/"
-      target="_blank"
-      rel="noopener noreferrer"
-      style={{
-        display: "block",
-        border: "1px solid rgba(128, 128, 128, 0.3)",
-        borderRadius: "0.75rem",
-        overflow: "hidden",
-        textDecoration: "none",
-        color: "inherit",
-        height: "100%",
-      }}
-    >
-      <div
-        style={{
-          aspectRatio: "16 / 9",
-          overflow: "hidden",
-          background: "rgba(128, 128, 128, 0.15)",
-        }}
-      >
-        <img
-          src="https://lmsys.org/images/blog/dspark-sglang/perf-compare.png"
-          alt="DSpark in SGLang: Speculative Decoding with Confidence-Driven, Variable-Length Verification"
-          style={{
-            width: "100%",
-            height: "100%",
-            objectFit: "cover",
-            objectPosition: "center",
-            display: "block",
-          }}
-        />
-      </div>
-      <div style={{ padding: "0.9rem 1rem 1rem" }}>
-        <p
-          style={{
-            margin: 0,
-            fontWeight: 600,
-            lineHeight: 1.35,
-            fontSize: "0.98rem",
-          }}
-        >
-          {"DSpark in SGLang: Speculative Decoding with Confidence-Driven, Variable-Length Verification"}
-        </p>
-        <p
-          style={{
-            margin: "0.55rem 0 0",
-            fontSize: "0.85rem",
-            opacity: 0.75,
-          }}
-        >
-          {"July 6, 2026"}
-        </p>
-      </div>
-    </a>
   </div>
 </div>
 {/* END_LMSYS_SGLANG_BLOG_CARDS */}