标准化，图片上传s3

certs/certificate.html

@@ -138,7 +138,7 @@
             const img = document.getElementById('cert-img');
             const hint = document.getElementById('click-hint');
 
-            if (img.src && img.complete) {
+            if (img.src && img.complete && img.naturalWidth > 0) {
                 img.style.display = 'block';
                 if (hint) hint.style.display = 'none';
                 return;
@@ -148,14 +148,14 @@
                 hint.innerHTML = '<span class="hint-orb">载</span><strong>图片加载中</strong><span>正在读取证书原件，请稍候。</span>';
             }
 
-            img.src = `img/${certNumber}.svg`;
+            img.src = `https://s3.biss.click/CERTS/${encodeURIComponent(certNumber)}.svg`;
             img.onload = () => {
                 img.style.display = 'block';
                 if (hint) hint.style.display = 'none';
             };
             img.onerror = () => {
                 if (hint) {
-                    hint.innerHTML = '<span class="hint-orb">!</span><strong>图片加载失败</strong><span>未找到对应证书图片文件，请检查 `img` 目录资源。</span>';
+                    hint.innerHTML = '<span class="hint-orb">!</span><strong>图片加载失败</strong><span>未找到对应证书图片文件</span>';
                 }
             };
         }
@@ -188,7 +188,7 @@
                 img.onerror = () => {
                     reject(new Error('证书图片加载失败'));
                 };
-                img.src = `img/${certNumber}.svg`;
+                img.src = `https://s3.biss.click/CERTS/${encodeURIComponent(certNumber)}.svg`;
             });
         }