fix: guard admin h5 entry pages

apps/taro/src/pages/student/student.css

@@ -4,6 +4,92 @@
   background: var(--tiku-page);
 }
 
+.login-page {
+  display: flex;
+  min-height: 100vh;
+  flex-direction: column;
+  justify-content: center;
+  gap: 24px;
+}
+
+.login-hero {
+  position: relative;
+  overflow: hidden;
+  padding: 34px 30px;
+  border-radius: 30px;
+  background: linear-gradient(135deg, #1152d4 0%, #2563eb 58%, #60a5fa 100%);
+  box-shadow: var(--tiku-shadow-blue);
+}
+
+.login-hero::after {
+  content: "";
+  position: absolute;
+  right: -52px;
+  bottom: -72px;
+  width: 220px;
+  height: 220px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.14);
+}
+
+.login-avatar,
+.login-kicker,
+.login-title,
+.login-subtitle {
+  position: relative;
+  z-index: 1;
+}
+
+.login-avatar {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 82px;
+  height: 82px;
+  border: 4px solid rgba(255, 255, 255, 0.5);
+  border-radius: 999px;
+  background: #fff;
+}
+
+.login-avatar-mark {
+  color: var(--tiku-primary);
+  font-size: 36px;
+  font-weight: 950;
+}
+
+.login-kicker {
+  display: block;
+  margin-top: 24px;
+  color: rgba(255, 255, 255, 0.82);
+  font-size: 23px;
+  font-weight: 850;
+}
+
+.login-title {
+  display: block;
+  margin-top: 10px;
+  color: #fff;
+  font-size: 48px;
+  font-weight: 950;
+  line-height: 1.12;
+}
+
+.login-subtitle {
+  display: block;
+  margin-top: 12px;
+  color: rgba(255, 255, 255, 0.84);
+  font-size: 25px;
+  line-height: 1.45;
+}
+
+.login-card {
+  padding: 28px;
+  border: 1px solid var(--tiku-border);
+  border-radius: 28px;
+  background: #fff;
+  box-shadow: var(--tiku-shadow);
+}
+
 .student-topbar {
   display: flex;
   align-items: center;