优化后台

core/frontend/src/App.tsx

@@ -358,19 +358,13 @@ export function App() {
   }, [page, route.projectId, route.productId]);
 
   // 平台后台 gating(身份就绪后):
-  //  - 平台超管打开站点根路径 / 登录页:直接进 /admin,不先落全能创作再点侧栏
-  //  - 无团队的超管:任何非 admin 路由都送进 /admin(否则普通外壳因 !team 永久卡 loading)
+  //  - 平台超管不进工作台:任何非 /admin 路由都送回后台
   //  - 非超管访问 /admin/*:纠回工作台
-  // 已有团队的超管从后台点「返回工作台」会落到 /omni-create,这里不拦。
   useLayoutEffect(() => {
     if (booting || !user?.is_platform_admin || route.admin !== undefined) return;
-    const path = window.location.pathname.replace(/\/+$/, "") || "/";
-    const defaultEntry = path === "/" || path === "/login" || path === "/dashboard";
-    if (!team || defaultEntry) {
-      navigateAdmin("", { replace: true });
-    }
+    navigateAdmin("", { replace: true });
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [booting, user, team, route.admin]);
+  }, [booting, user, route.admin]);
 
   useEffect(() => {
     if (booting || !user) return;
@@ -396,12 +390,11 @@ export function App() {
   useLayoutEffect(() => {
     if (booting || !user || page !== "dashboard") return;
     if (route.admin !== undefined) return;
-    const path = window.location.pathname.replace(/\/+$/, "") || "/";
-    // 同一次渲染里超管入口已经改去 /admin,这里不能再改写成全能创作。
-    if (user.is_platform_admin && (path === "/" || path === "/login" || path === "/dashboard" || !team)) return;
+    // 超管由上面的后台 gating 接走,这里不能再改写成全能创作。
+    if (user.is_platform_admin) return;
     navigate("omniCreate", { replace: true });
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [booting, user, team, page, route.admin]);
+  }, [booting, user, page, route.admin]);
 
   // Load preferences + sessions when entering settings.
   // 进创作相关页时重拉模型目录,避免后台刚改能力/积分,前端还捧着首屏缓存
@@ -901,14 +894,10 @@ export function App() {
     setTeam(payload.team);
     setRole(payload.role || "");
     setBooting(false);
-    // 平台超管登录后直接进后台。有团队时后台补拉工作台数据,供「返回工作台」使用;
-    // 无团队则不拉团队级接口(products/projects 会因无团队报错)。
+    // 平台超管只进后台,不拉工作台数据。
     if (payload.user.is_platform_admin) {
       setAuthed(true);
       navigateAdmin("", { replace: true });
-      if (payload.team) {
-        loadDataWithRetry().catch((error) => console.error("[login] data hydrate failed:", error));
-      }
       return;
     }
     navigate("omniCreate", { replace: true });
@@ -986,9 +975,7 @@ export function App() {
         <AdminApp
           section={route.admin}
           user={user}
-          team={team}
           navigateAdmin={navigateAdmin}
-          navigate={navigate}
           logout={logout}
         />
         {sessionInvalidatedModal}

core/frontend/src/admin-page.css

@@ -90,24 +90,6 @@
   border-top: 1px solid var(--st-line);
   background: rgba(28, 34, 43, 0.02);
 }
-.admin-back {
-  display: inline-flex;
-  align-items: center;
-  gap: 8px;
-  height: 36px;
-  padding: 0 10px;
-  border: 0;
-  border-radius: 8px;
-  background: transparent;
-  color: var(--st-muted);
-  font: inherit;
-  font-size: 13px;
-  font-weight: 500;
-  cursor: pointer;
-}
-.admin-back:hover { color: var(--st-text); background: var(--st-hover); }
-.admin-back svg { width: 16px; height: 16px; }
-
 .admin-user {
   display: flex;
   align-items: center;

core/frontend/src/models-page.css

@@ -113,9 +113,15 @@
 
 .models-page .ml-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+  grid-template-columns: repeat(6, minmax(0, 1fr));
   gap: 12px;
 }
+@media (max-width: 1280px) {
+  .models-page .ml-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
+}
+@media (max-width: 1024px) {
+  .models-page .ml-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
+}
 .models-page .ml-card {
   position: relative;
   min-width: 0;
@@ -281,7 +287,10 @@
   .models-page .ml-sel-bar { left: 50%; }
 }
 @media (max-width: 860px) {
-  .models-page .ml-grid { grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); }
+  .models-page .ml-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
+}
+@media (max-width: 560px) {
+  .models-page .ml-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
 }
 
 /* 模特详情弹窗:参考视频项目角色详情结构 */

core/frontend/src/omni-create-page.css

@@ -879,11 +879,27 @@
   height: 100%;
   display: block;
   object-fit: cover;
+}
+
+.omni-case-visual img {
   transition: transform 260ms ease;
 }
 
+/* 预览视频叠在封面上。播不起来时保持透明，封面继续可见。
+   不要给 video 加 scale：Safari 里变换过的 video 会直接画成空白。 */
+.omni-case-visual video {
+  position: absolute;
+  inset: 0;
+  opacity: 0;
+  transform: translateZ(0);
+}
+
+.omni-case-visual video.is-playing {
+  opacity: 1;
+}
+
 .omni-case-card:hover .omni-case-visual img,
-.omni-case-card:hover .omni-case-visual video {
+.omni-case-card.active .omni-case-visual img {
   transform: scale(1.035);
 }
 

core/frontend/src/routes/admin/admin-app.tsx

@@ -1,10 +1,9 @@
 import { useEffect, useState } from "react";
-import { ArrowLeft, ArrowRight, LogOut } from "lucide-react";
+import { ArrowRight, LogOut } from "lucide-react";
 import { IconKitSvg } from "../../components/IconKitSvg";
 import { CornerMarks, Decorations, ToastLike } from "../../components/app-shell";
 import { ConfirmModal } from "../../components/overlays";
-import type { Team, User } from "../../types";
-import type { NavigateFn } from "../route-config";
+import type { User } from "../../types";
 import { AdminLedgersPage, AdminQuotaPage } from "./admin-billing";
 import { AdminGovernancePage } from "./admin-governance";
 import { AdminInvitesPage } from "./admin-invites";
@@ -70,13 +69,11 @@ const GROUP_HINT: Record<string, string> = {
 type AdminAppProps = {
   section: string;
   user: User;
-  team: Team | null;
   navigateAdmin: (section: string, options?: { replace?: boolean }) => void;
-  navigate: NavigateFn;
   logout: () => void;
 };
 
-export function AdminApp({ section, user, team, navigateAdmin, navigate, logout }: AdminAppProps) {
+export function AdminApp({ section, user, navigateAdmin, logout }: AdminAppProps) {
   const active = ADMIN_SECTIONS.find((s) => s.slug === section) || ADMIN_SECTIONS[0];
   const [toast, setToast] = useState<{ type: "success" | "error" | "info"; text: string } | null>(null);
   const [logoutOpen, setLogoutOpen] = useState(false);
@@ -143,12 +140,6 @@ export function AdminApp({ section, user, team, navigateAdmin, navigate, logout
             })}
           </div>
           <div className="admin-foot">
-            {team && (
-              <button type="button" className="admin-back" onClick={() => navigate("dashboard")}>
-                <ArrowLeft size={16} strokeWidth={1.8} />
-                返回工作台
-              </button>
-            )}
             <div className="admin-user">
               <div className="av">{(user.username || "A").slice(0, 1).toUpperCase()}</div>
               <div className="admin-user-meta">

core/frontend/src/routes/omni-create.tsx

@@ -71,6 +71,37 @@ const IMAGE_PRESETS: PresetItem[] = [
 const MENTION_REF_LIMIT = 20;
 const ROLE_REF_LIMIT = 3;
 
+function playPresetPreview(card: HTMLElement) {
+  const video = card.querySelector<HTMLVideoElement>("video");
+  if (!video || video.dataset.broken === "1") return;
+  const reveal = () => {
+    if (video.dataset.broken === "1" || video.videoWidth === 0) return;
+    video.classList.add("is-playing");
+  };
+  const fail = () => {
+    video.dataset.broken = "1";
+    video.classList.remove("is-playing");
+    video.pause();
+  };
+  video.addEventListener("error", fail, { once: true });
+  video.addEventListener("playing", reveal, { once: true });
+  void video.play().catch(fail);
+}
+
+function stopPresetPreview(card: HTMLElement) {
+  const video = card.querySelector<HTMLVideoElement>("video");
+  if (!video) return;
+  video.pause();
+  if (video.dataset.broken !== "1" && Number.isFinite(video.duration)) {
+    try {
+      video.currentTime = 0;
+    } catch {
+      /* Safari 在还没解码时不允许回绕 */
+    }
+  }
+  video.classList.remove("is-playing");
+}
+
 const MENTION_TABS: Array<{ type: CreationRef["type"]; label: string; Icon: typeof ImageIcon }> = [
   { type: "asset", label: "素材", Icon: ImageIcon },
   { type: "character", label: "角色", Icon: UserRound },
@@ -671,39 +702,22 @@ export function OmniCreatePage({
                 className={`omni-case-card${selectedCase?.name === card.name ? " active" : ""}`}
                 data-mode={card.mode}
                 key={card.name}
-                onMouseEnter={(event) => {
-                  const video = event.currentTarget.querySelector<HTMLVideoElement>("video");
-                  void video?.play().catch(() => undefined);
-                }}
-                onMouseLeave={(event) => {
-                  const video = event.currentTarget.querySelector<HTMLVideoElement>("video");
-                  if (!video) return;
-                  video.pause();
-                  video.currentTime = 0;
-                }}
-                onFocus={(event) => {
-                  const video = event.currentTarget.querySelector<HTMLVideoElement>("video");
-                  void video?.play().catch(() => undefined);
-                }}
-                onBlur={(event) => {
-                  const video = event.currentTarget.querySelector<HTMLVideoElement>("video");
-                  if (!video) return;
-                  video.pause();
-                  video.currentTime = 0;
-                }}
+                onMouseEnter={(event) => playPresetPreview(event.currentTarget)}
+                onMouseLeave={(event) => stopPresetPreview(event.currentTarget)}
+                onFocus={(event) => playPresetPreview(event.currentTarget)}
+                onBlur={(event) => stopPresetPreview(event.currentTarget)}
                 onClick={() => {
                   if (card.mode === "image") applyPreset(card);
                   else setPreviewCase(card);
                 }}
               >
                 <span className="omni-case-visual">
+                  <img src={card.cover} alt="" />
                   {card.previewVideo ? (
-                    <video muted loop playsInline preload="metadata" poster={card.cover} aria-label={`${card.title} 样片预览`}>
+                    <video muted loop playsInline preload="none" poster={card.cover} aria-hidden="true">
                       <source src={card.previewVideo} type="video/mp4" />
                     </video>
-                  ) : (
-                    <img src={card.cover} alt="" />
-                  )}
+                  ) : null}
                 </span>
                 <span className="omni-case-copy">
                   <strong>{card.title}</strong>