From 5f7193042f1096fbeb9d978f54bcefac7fb63d47 Mon Sep 17 00:00:00 2001
From: freefire <aarbbs@88.com>
Date: Fri, 18 Sep 2026 04:16:32 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=A4=96=E8=A7=82=E6=94=AF=E6=8C=81?=
 =?UTF-8?q?=E8=87=AA=E5=AE=9A=E4=B9=89=20CSS/JS=EF=BC=8C=E5=B9=B6=E5=8D=87?=
 =?UTF-8?q?=E7=BA=A7=E5=8F=91=E5=B8=96=E5=B7=A5=E4=BD=9C=E5=8F=B0=E4=B8=8E?=
 =?UTF-8?q?=E7=A7=AF=E5=88=86=E5=AD=98=E9=87=8F=E7=9C=8B=E6=9D=BF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

后台可注入全站 CSS/JS（SSR 生效，CSS 可热换）；发帖/编辑改为锁一屏工作室；经济看板增加存量健康度；主题令牌与弹层误关一并收紧。

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 backend/handler/setting.go                    |   27 +-
 backend/service/custom_code_settings_test.go  |   19 +
 backend/service/setting.go                    |   83 +
 frontend/app/about/page.tsx                   |    2 +-
 .../app/admin/appearance/AppearanceAdmin.tsx  |  156 +-
 frontend/app/admin/economy/EconomyClient.tsx  |  256 ++-
 frontend/app/announcements/page.tsx           |    4 +-
 frontend/app/chat/ChatShell.tsx               |    6 +-
 frontend/app/chat/[id]/ChatRoomClient.tsx     |   12 +-
 frontend/app/compose/layout.tsx               |   11 +-
 frontend/app/compose/page.tsx                 |   14 +-
 frontend/app/globals.css                      |  712 ++++++--
 frontend/app/layout.tsx                       |   14 +-
 .../app/notifications/NotificationsClient.tsx |    2 +-
 frontend/app/post/[id]/edit/layout.tsx        |   22 +
 frontend/app/post/[id]/edit/page.tsx          |   22 +-
 frontend/app/post/[id]/page.tsx               |    2 +-
 frontend/components/BoardPicker.tsx           |   20 +-
 frontend/components/ComposeAttachments.tsx    |    6 +-
 frontend/components/ConfirmDialog.tsx         |    2 +-
 frontend/components/Header.tsx                |    8 +-
 frontend/components/MarkdownEditor.tsx        |   14 +-
 frontend/components/MobilePostBar.tsx         |    2 +-
 frontend/components/Modal.tsx                 |   47 +-
 frontend/components/NotificationBell.tsx      |    2 +-
 frontend/components/PinnedPosts.tsx           |    2 +-
 frontend/components/PostActions.tsx           |    2 +-
 frontend/components/PostComposer.tsx          | 1490 ++++++++++-------
 frontend/components/PostRow.tsx               |    2 +-
 frontend/components/SiteChrome.tsx            |    9 +-
 frontend/components/StaffUserMenu.tsx         |    2 +-
 frontend/components/ThemeSync.tsx             |   48 +-
 .../components/admin/AdminSearchField.tsx     |    2 +-
 frontend/components/admin/AdminShell.tsx      |    2 +-
 frontend/components/admin/charts.tsx          |   14 +-
 frontend/components/home/CommunityPanels.tsx  |    2 +-
 frontend/lib/api.ts                           |   10 +
 frontend/lib/customCode.ts                    |  100 ++
 frontend/lib/postMeta.ts                      |    8 +-
 frontend/lib/realtime.ts                      |    2 +
 frontend/lib/theme.ts                         |   10 +-
 41 files changed, 2297 insertions(+), 873 deletions(-)
 create mode 100644 backend/service/custom_code_settings_test.go
 create mode 100644 frontend/app/post/[id]/edit/layout.tsx
 create mode 100644 frontend/lib/customCode.ts

diff --git a/backend/handler/setting.go b/backend/handler/setting.go
index a6243d6..f998acf 100644
--- a/backend/handler/setting.go
+++ b/backend/handler/setting.go
@@ -41,6 +41,8 @@ type updateSettingsRequest struct {
 	AttachmentMaxMB      *int      `json:"attachment_max_mb"`
 	AttachmentMaxCount   *int      `json:"attachment_max_count"`
 	ImageMaxMB           *int      `json:"image_max_mb"`
+	CustomCSS            *string   `json:"custom_css"`
+	CustomJS             *string   `json:"custom_js"`
 	TimelineGitImport    *string   `json:"timeline_git_import"` // 超管专用；不进公开 settings / WS 广播
 }
 
@@ -66,6 +68,8 @@ func settingsPayload(saved service.PublicSiteSettings) gin.H {
 		"attachment_max_mb":      saved.AttachmentMaxMB,
 		"attachment_max_count":   saved.AttachmentMaxCount,
 		"image_max_mb":           saved.ImageMaxMB,
+		"custom_css":             saved.CustomCSS,
+		"custom_js":              saved.CustomJS,
 	}
 }
 
@@ -76,7 +80,8 @@ func (req *updateSettingsRequest) hasAny() bool {
 		req.CodeBlockFoldLines != nil || req.UIAnimations != nil || req.AnimCodeFold != nil ||
 		req.AnimSmoothScroll != nil || req.AnimChrome != nil || req.PostLinkNewTab != nil ||
 		req.AttachmentExtLimit != nil || req.AttachmentExts != nil || req.AttachmentMaxMB != nil ||
-		req.AttachmentMaxCount != nil || req.ImageMaxMB != nil || req.TimelineGitImport != nil
+		req.AttachmentMaxCount != nil || req.ImageMaxMB != nil || req.CustomCSS != nil ||
+		req.CustomJS != nil || req.TimelineGitImport != nil
 }
 
 // AdminGetSettings 超管读取站点设置（含 timeline_git_import，不进公开 /api/settings）
@@ -264,6 +269,26 @@ func (h *Handlers) UpdateSettings(c *gin.Context) {
 			return
 		}
 	}
+	if req.CustomCSS != nil {
+		if err := h.Setting.SetCustomCSS(*req.CustomCSS); err != nil {
+			if errors.Is(err, service.ErrInvalidSiteSetting) {
+				c.JSON(http.StatusBadRequest, gin.H{"error": "自定义 CSS 过长或含非法闭合标签"})
+				return
+			}
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "保存站点设置失败"})
+			return
+		}
+	}
+	if req.CustomJS != nil {
+		if err := h.Setting.SetCustomJS(*req.CustomJS); err != nil {
+			if errors.Is(err, service.ErrInvalidSiteSetting) {
+				c.JSON(http.StatusBadRequest, gin.H{"error": "自定义 JS 过长或含非法闭合标签"})
+				return
+			}
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "保存站点设置失败"})
+			return
+		}
+	}
 
 	var savedAdapter string
 	if req.TimelineGitImport != nil {
diff --git a/backend/service/custom_code_settings_test.go b/backend/service/custom_code_settings_test.go
new file mode 100644
index 0000000..2b42991
--- /dev/null
+++ b/backend/service/custom_code_settings_test.go
@@ -0,0 +1,19 @@
+package service
+
+import "testing"
+
+func TestSanitizeCustomSnippet(t *testing.T) {
+	got, err := sanitizeCustomSnippet("  body{color:red}  ", "</style", MaxCustomCSSRunes)
+	if err != nil || got != "body{color:red}" {
+		t.Fatalf("trim got %q err=%v", got, err)
+	}
+	if _, err = sanitizeCustomSnippet("a</style>b", "</style", MaxCustomCSSRunes); err == nil {
+		t.Fatal("css closer should fail")
+	}
+	if _, err = sanitizeCustomSnippet("a</SCRIPT>b", "</script", MaxCustomJSRunes); err == nil {
+		t.Fatal("js closer should fail")
+	}
+	if _, err = sanitizeCustomSnippet("ok", "</script", MaxCustomJSRunes); err != nil {
+		t.Fatalf("valid js: %v", err)
+	}
+}
diff --git a/backend/service/setting.go b/backend/service/setting.go
index dadcedc..b76ace2 100644
--- a/backend/service/setting.go
+++ b/backend/service/setting.go
@@ -49,6 +49,10 @@ const (
 	SettingKeyAttachmentMaxCount = "attachment_max_count"
 	// SettingKeyImageMaxMB 正文插图上限（MB）；缺行=5
 	SettingKeyImageMaxMB = "image_max_mb"
+	// SettingKeyCustomCSS 全站自定义 CSS（外观页注入，空=无）
+	SettingKeyCustomCSS = "custom_css"
+	// SettingKeyCustomJS 全站自定义 JS（外观页注入，空=无）
+	SettingKeyCustomJS = "custom_js"
 )
 
 const (
@@ -70,6 +74,9 @@ const (
 	MinAttachmentMaxCount     = 1
 	MaxAttachmentMaxCount     = 20
 	MaxAttachmentExtCount     = 80
+
+	MaxCustomCSSRunes = 48000
+	MaxCustomJSRunes  = 48000
 )
 
 // DefaultAttachmentExts 论坛向默认允许扩展名（含安装包/脚本/网页）
@@ -115,6 +122,8 @@ type PublicSiteSettings struct {
 	AttachmentMaxMB      int      `json:"attachment_max_mb"`
 	AttachmentMaxCount   int      `json:"attachment_max_count"`
 	ImageMaxMB           int      `json:"image_max_mb"`
+	CustomCSS            string   `json:"custom_css"`
+	CustomJS             string   `json:"custom_js"`
 }
 
 // SettingService 站点级键值设置
@@ -316,6 +325,18 @@ func (s *SettingService) Public() (PublicSiteSettings, error) {
 		return out, err
 	}
 	out.ImageMaxMB = imgMB
+
+	css, err := s.CustomCSS()
+	if err != nil {
+		return out, err
+	}
+	out.CustomCSS = css
+
+	js, err := s.CustomJS()
+	if err != nil {
+		return out, err
+	}
+	out.CustomJS = js
 	return out, nil
 }
 
@@ -767,3 +788,65 @@ func (s *SettingService) ImageMaxBytes() (int64, error) {
 	}
 	return int64(mb) << 20, nil
 }
+
+func sanitizeCustomSnippet(s, closer string, maxRunes int) (string, error) {
+	s = strings.TrimSpace(s)
+	if strings.ContainsRune(s, 0) {
+		return "", ErrInvalidSiteSetting
+	}
+	if utf8.RuneCountInString(s) > maxRunes {
+		return "", ErrInvalidSiteSetting
+	}
+	if closer != "" && strings.Contains(strings.ToLower(s), closer) {
+		return "", ErrInvalidSiteSetting
+	}
+	return s, nil
+}
+
+// CustomCSS 全站自定义 CSS。缺行/空=无。
+func (s *SettingService) CustomCSS() (string, error) {
+	v, found, err := s.getValue(SettingKeyCustomCSS)
+	if err != nil || !found {
+		return "", err
+	}
+	out, nerr := sanitizeCustomSnippet(v, "</style", MaxCustomCSSRunes)
+	if nerr != nil {
+		return "", nil
+	}
+	return out, nil
+}
+
+func (s *SettingService) SetCustomCSS(css string) error {
+	normalized, err := sanitizeCustomSnippet(css, "</style", MaxCustomCSSRunes)
+	if err != nil {
+		return err
+	}
+	if normalized == "" {
+		return s.deleteKey(SettingKeyCustomCSS)
+	}
+	return s.putValue(SettingKeyCustomCSS, normalized)
+}
+
+// CustomJS 全站自定义 JS。缺行/空=无。
+func (s *SettingService) CustomJS() (string, error) {
+	v, found, err := s.getValue(SettingKeyCustomJS)
+	if err != nil || !found {
+		return "", err
+	}
+	out, nerr := sanitizeCustomSnippet(v, "</script", MaxCustomJSRunes)
+	if nerr != nil {
+		return "", nil
+	}
+	return out, nil
+}
+
+func (s *SettingService) SetCustomJS(js string) error {
+	normalized, err := sanitizeCustomSnippet(js, "</script", MaxCustomJSRunes)
+	if err != nil {
+		return err
+	}
+	if normalized == "" {
+		return s.deleteKey(SettingKeyCustomJS)
+	}
+	return s.putValue(SettingKeyCustomJS, normalized)
+}
diff --git a/frontend/app/about/page.tsx b/frontend/app/about/page.tsx
index 7d722a5..07d5907 100644
--- a/frontend/app/about/page.tsx
+++ b/frontend/app/about/page.tsx
@@ -35,7 +35,7 @@ function PageRow({
   return (
     <Link
       href={`/p/${p.slug}`}
-      className="block px-5 sm:px-6 py-4 sm:py-5 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+      className="block px-5 sm:px-6 py-4 sm:py-5 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
       style={showDivider ? { borderTop: "1px solid var(--line)" } : undefined}
     >
       <div className="flex items-start gap-3 min-w-0">
diff --git a/frontend/app/admin/appearance/AppearanceAdmin.tsx b/frontend/app/admin/appearance/AppearanceAdmin.tsx
index 7e4794f..d7c0fe7 100644
--- a/frontend/app/admin/appearance/AppearanceAdmin.tsx
+++ b/frontend/app/admin/appearance/AppearanceAdmin.tsx
@@ -12,6 +12,7 @@ import {
   RotateCcw,
   Pipette,
   Sparkles,
+  FileCode2,
 } from "lucide-react";
 import {
   AdminPageHeader,
@@ -20,7 +21,7 @@ import {
   AdminStepper,
   AdminSwitch,
 } from "@/components/admin";
-import { apiUpdateSiteSettings, type PublicSettings } from "@/lib/api";
+import { apiUpdateSiteSettings, type PublicSettings, type UpdateSiteSettingsBody } from "@/lib/api";
 import { toast } from "@/lib/toast";
 import {
   ACCENT_PRESETS,
@@ -30,14 +31,27 @@ import {
   findPreset,
   normalizeHex,
 } from "@/lib/theme";
+import {
+  MAX_CUSTOM_CSS_CHARS,
+  MAX_CUSTOM_JS_CHARS,
+  SAMPLE_CUSTOM_CSS,
+  SAMPLE_CUSTOM_JS,
+  applyCustomCSS,
+  clipCustomSnippet,
+} from "@/lib/customCode";
 
-// 后台「外观设置」：主题色、代码块折叠与界面动画。
-// 主题色修改时立即对整页实时预览（仅本地），保存后才写库并对所有用户生效。
+// 后台「外观设置」：主题色、自定义 CSS/JS、代码块折叠与界面动画。
+// 主题色 / 自定义 CSS 修改时立即对整页实时预览（仅本地），保存后才写库并对所有用户生效。
+// 自定义 JS 不在编辑时执行，保存后整页加载生效。
 export default function AppearanceAdmin({ initial }: { initial: PublicSettings }) {
   const router = useRouter();
   const initialAccent = initial.accent || "";
   const [savedHex, setSavedHex] = useState(initialAccent);
   const [draft, setDraft] = useState(initialAccent || DEFAULT_ACCENT);
+  const [savedCustomCSS, setSavedCustomCSS] = useState(initial.custom_css || "");
+  const [customCSS, setCustomCSS] = useState(initial.custom_css || SAMPLE_CUSTOM_CSS);
+  const [savedCustomJS, setSavedCustomJS] = useState(initial.custom_js || "");
+  const [customJS, setCustomJS] = useState(initial.custom_js || SAMPLE_CUSTOM_JS);
   const [codeAutoFold, setCodeAutoFold] = useState(initial.code_block_auto_fold !== false);
   const [foldLines, setFoldLines] = useState(
     Number.isFinite(initial.code_block_fold_lines) ? initial.code_block_fold_lines : 5
@@ -54,6 +68,8 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
   const [saving, setSaving] = useState(false);
   const savedRef = useRef(savedHex);
   savedRef.current = savedHex;
+  const savedCSSRef = useRef(savedCustomCSS);
+  savedCSSRef.current = savedCustomCSS;
 
   const normalized = useMemo(() => normalizeHex(draft), [draft]);
   const pair = useMemo(
@@ -62,7 +78,12 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
   );
   const preset = useMemo(() => (normalized ? findPreset(normalized) : null), [normalized]);
   const submitHex = normalized && normalized !== DEFAULT_ACCENT ? normalized : "";
-  const dirty = (savedHex || DEFAULT_ACCENT) !== (normalized || "");
+  const accentDirty = (savedHex || DEFAULT_ACCENT) !== (normalized || "");
+  const cssIsGuide = !savedCustomCSS && customCSS === SAMPLE_CUSTOM_CSS;
+  const jsIsGuide = !savedCustomJS && customJS === SAMPLE_CUSTOM_JS;
+  const cssDirty = customCSS !== savedCustomCSS && !cssIsGuide;
+  const jsDirty = customJS !== savedCustomJS && !jsIsGuide;
+  const dirty = accentDirty || cssDirty || jsDirty;
   const invalid = draft.trim() !== "" && !normalized;
 
   useEffect(() => {
@@ -72,19 +93,35 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
     };
   }, [normalized]);
 
+  useEffect(() => {
+    applyCustomCSS(customCSS, true);
+    return () => {
+      applyCustomCSS(savedCSSRef.current, false);
+    };
+  }, [customCSS]);
+
   const handleSave = async () => {
     if (!normalized || saving) return;
+    const body: UpdateSiteSettingsBody = {};
+    if (accentDirty) body.accent = submitHex;
+    if (cssDirty) body.custom_css = customCSS;
+    if (jsDirty) body.custom_js = customJS;
+    if (Object.keys(body).length === 0) return;
     setSaving(true);
     try {
-      const res = await apiUpdateSiteSettings({ accent: submitHex });
+      const res = await apiUpdateSiteSettings(body);
       const next = (res.accent || "").toLowerCase();
       setSavedHex(next);
+      setSavedCustomCSS(res.custom_css || "");
+      setSavedCustomJS(res.custom_js || "");
       applyAccentTheme(next || null);
+      applyCustomCSS(res.custom_css || "", false);
       router.refresh();
-      toast(next ? "主题色已保存并对全站生效" : "已恢复默认主题色");
+      toast(jsDirty ? "外观已保存；自定义 JS 将在整页刷新后执行" : "外观已保存并对全站生效");
     } catch (e) {
       toast(e instanceof Error ? e.message : "保存失败", "error");
       applyAccentTheme(savedRef.current || null);
+      applyCustomCSS(savedCSSRef.current, false);
     } finally {
       setSaving(false);
     }
@@ -92,7 +129,10 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
 
   const discard = () => {
     setDraft(savedHex || DEFAULT_ACCENT);
+    setCustomCSS(savedCustomCSS || SAMPLE_CUSTOM_CSS);
+    setCustomJS(savedCustomJS || SAMPLE_CUSTOM_JS);
     applyAccentTheme(savedHex || null);
+    applyCustomCSS(savedCustomCSS, true);
   };
 
   const toggleCodeFold = async () => {
@@ -167,7 +207,7 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
       <AdminPageHeader
         icon={Palette}
         title="外观设置"
-        description="配置站点主题色、代码块折叠与界面动画"
+        description="配置站点主题色、自定义 CSS/JS、代码块折叠与界面动画"
       />
 
       <div className="grid grid-cols-1 xl:grid-cols-3 gap-4 mb-6">
@@ -296,7 +336,10 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
           <AdminSection title="实时预览">
             <div
               className="rounded-[var(--r-sm)] border p-4 space-y-4"
-              style={{ borderColor: "var(--line)", background: "var(--bg)" }}
+              style={{
+                borderColor: "var(--line)",
+                background: "var(--bg)",
+              }}
             >
               <div className="flex flex-wrap items-center gap-2.5">
                 <button type="button" className="btn btn-primary btn-sm">
@@ -327,14 +370,16 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
                 </span>
               </div>
               <div className="max-w-xs">
-                <div className="j13-bcard" aria-current="page">
-                  <span
-                    className="j13-bcard-ico"
-                    style={{ background: "var(--accent-soft)", color: "var(--accent)" }}
-                  >
-                    <Palette size={16} />
-                  </span>
-                  <span className="j13-bcard-name text-[13px] flex-1">选中的板块卡片</span>
+                <div className="panel p-3">
+                  <div className="j13-bcard" aria-current="page">
+                    <span
+                      className="j13-bcard-ico"
+                      style={{ background: "var(--accent-soft)", color: "var(--accent)" }}
+                    >
+                      <Palette size={16} />
+                    </span>
+                    <span className="j13-bcard-name text-[13px] flex-1">选中的板块卡片</span>
+                  </div>
                 </div>
               </div>
             </div>
@@ -470,6 +515,85 @@ export default function AppearanceAdmin({ initial }: { initial: PublicSettings }
         </div>
       </div>
 
+      <AdminSection
+        title={
+          <span className="inline-flex items-center gap-1.5">
+            <FileCode2 size={15} /> 自定义代码
+          </span>
+        }
+        description="注入全站 HTML。空配置时先显示注释示例（不会自动写入）；保存后才对访客生效。勿包含 </style> 或 </script>。"
+        className="mb-6"
+      >
+        <div className="grid grid-cols-1 xl:grid-cols-2 gap-4">
+          <div>
+            <div className="flex items-center justify-between gap-2 mb-1">
+              <label className="field-label !mb-0" htmlFor="custom-css">
+                自定义 CSS
+              </label>
+              {customCSS !== SAMPLE_CUSTOM_CSS && (
+                <button
+                  type="button"
+                  className="btn btn-line btn-sm !h-7 !px-2.5 !text-[12px]"
+                  onClick={() => setCustomCSS(SAMPLE_CUSTOM_CSS)}
+                >
+                  填入示例
+                </button>
+              )}
+            </div>
+            <p className="meta text-[12.5px] mb-2 leading-relaxed">
+              覆盖令牌或组件类。本页即时预览；去掉注释后的规则才会改变外观。上限{" "}
+              {MAX_CUSTOM_CSS_CHARS.toLocaleString()} 字。
+            </p>
+            <textarea
+              id="custom-css"
+              className="j13-compose-field w-full font-mono text-[12.5px] leading-relaxed"
+              style={{ minHeight: 280 }}
+              spellCheck={false}
+              value={customCSS}
+              onChange={(e) => setCustomCSS(clipCustomSnippet(e.target.value, MAX_CUSTOM_CSS_CHARS))}
+              aria-label="自定义 CSS"
+            />
+            <p className="meta text-[11.5px] mt-1.5 tabular-nums">
+              {customCSS.length.toLocaleString()} / {MAX_CUSTOM_CSS_CHARS.toLocaleString()}
+              {cssIsGuide ? " · 示例未保存" : ""}
+            </p>
+          </div>
+          <div>
+            <div className="flex items-center justify-between gap-2 mb-1">
+              <label className="field-label !mb-0" htmlFor="custom-js">
+                自定义 JS
+              </label>
+              {customJS !== SAMPLE_CUSTOM_JS && (
+                <button
+                  type="button"
+                  className="btn btn-line btn-sm !h-7 !px-2.5 !text-[12px]"
+                  onClick={() => setCustomJS(SAMPLE_CUSTOM_JS)}
+                >
+                  填入示例
+                </button>
+              )}
+            </div>
+            <p className="meta text-[12.5px] mb-2 leading-relaxed">
+              仅站长/超管可写。不在编辑时运行，保存后需整页刷新。上限{" "}
+              {MAX_CUSTOM_JS_CHARS.toLocaleString()} 字。
+            </p>
+            <textarea
+              id="custom-js"
+              className="j13-compose-field w-full font-mono text-[12.5px] leading-relaxed"
+              style={{ minHeight: 280 }}
+              spellCheck={false}
+              value={customJS}
+              onChange={(e) => setCustomJS(clipCustomSnippet(e.target.value, MAX_CUSTOM_JS_CHARS))}
+              aria-label="自定义 JS"
+            />
+            <p className="meta text-[11.5px] mt-1.5 tabular-nums">
+              {customJS.length.toLocaleString()} / {MAX_CUSTOM_JS_CHARS.toLocaleString()}
+              {jsIsGuide ? " · 示例未保存" : ""}
+            </p>
+          </div>
+        </div>
+      </AdminSection>
+
       <div className="flex items-center justify-between gap-3 sticky bottom-5 panel !p-3.5 pl-5 z-10">
         <p className="text-[12.5px] meta hidden sm:block">
           {dirty ? "有未保存的改动，整页正处于实时预览状态" : "设置已是保存状态"}
diff --git a/frontend/app/admin/economy/EconomyClient.tsx b/frontend/app/admin/economy/EconomyClient.tsx
index ceec513..b163b75 100644
--- a/frontend/app/admin/economy/EconomyClient.tsx
+++ b/frontend/app/admin/economy/EconomyClient.tsx
@@ -157,6 +157,174 @@ function todayDelta(items: PointLedgerItem[]) {
   return { granted, spent };
 }
 
+type FlowHealth = "low" | "ok" | "hot";
+
+function stockFromStats(stats: EconomyStats) {
+  let granted = 0;
+  let spent = 0;
+  const series = stats.delta_series || [];
+  const seriesHas = series.some((d) => (Number(d.granted) || 0) > 0 || (Number(d.spent) || 0) > 0);
+  if (seriesHas) {
+    for (const d of series) {
+      granted += Math.max(0, Number(d.granted) || 0);
+      spent += Math.max(0, Number(d.spent) || 0);
+    }
+  } else {
+    for (const it of stats.recent_ledger || []) {
+      const n = Number(it.delta) || 0;
+      if (n > 0) granted += n;
+      else if (n < 0) spent += -n;
+    }
+  }
+  let frozen = 0;
+  for (const it of stats.recent_ledger || []) {
+    if (it.reason === "bounty_escrow" && (Number(it.delta) || 0) < 0) {
+      frozen += Math.abs(Number(it.delta));
+    }
+  }
+  if ((stats.escrowed_points || 0) > frozen) {
+    frozen = stats.escrowed_points;
+  }
+  const circulating = granted - spent;
+  const empty = granted <= 0 && spent <= 0 && frozen <= 0;
+  const rate = granted > 0 ? Math.round((spent / granted) * 100) : 0;
+  let health: FlowHealth = "ok";
+  if (rate < 20) health = "low";
+  else if (rate > 60) health = "hot";
+  return { granted, spent, circulating, frozen, empty, rate, health };
+}
+
+const HEALTH_COPY: Record<FlowHealth, string> = {
+  low: "积分消耗偏低，可考虑增加积分消耗场景",
+  ok: "积分经济体健康",
+  hot: "积分消耗较快，注意通胀",
+};
+
+const HEALTH_LABEL: Record<FlowHealth, string> = {
+  low: "偏低",
+  ok: "健康",
+  hot: "偏快",
+};
+
+function StockOverviewCard({ stats }: { stats: EconomyStats }) {
+  const stock = useMemo(() => stockFromStats(stats), [stats]);
+  const { granted, spent, circulating, frozen, empty, rate, health } = stock;
+  const tip = HEALTH_COPY[health];
+  const showFrozen = frozen > 0;
+
+  let circBarPct = granted > 0 ? Math.max(0, (circulating / granted) * 100) : 0;
+  const spentLabelPct = granted > 0 ? Math.min(100, (spent / granted) * 100) : 0;
+  const circLabelPct = granted > 0 ? Math.max(0, Math.round((Math.max(0, circulating) / granted) * 100)) : 0;
+  const netSpent = Math.max(0, spent - frozen);
+  let netSpentPct = granted > 0 ? (netSpent / granted) * 100 : 0;
+  let frozenPct = granted > 0 && showFrozen ? (frozen / granted) * 100 : 0;
+  const segSum = circBarPct + netSpentPct + frozenPct;
+  if (segSum > 100 && segSum > 0) {
+    const scale = 100 / segSum;
+    circBarPct *= scale;
+    netSpentPct *= scale;
+    frozenPct *= scale;
+  }
+
+  return (
+    <section className="stock-card">
+      <div className="flex items-start justify-between gap-3 mb-3">
+        <div className="min-w-0">
+          <h3 className="text-[14.5px] font-semibold" style={{ color: "var(--ink)" }}>
+            积分存量概览
+          </h3>
+          <p className="meta text-[11.5px] mt-0.5 leading-relaxed">基于全站累计流水计算</p>
+        </div>
+        {!empty ? (
+          <span
+            className={`stock-badge is-${health} shrink-0`}
+            title={tip}
+          >
+            流通率 {granted > 0 ? `${rate}%` : "—"} · {HEALTH_LABEL[health]}
+          </span>
+        ) : null}
+      </div>
+
+      {empty ? (
+        <div className="stock-card-body items-center justify-center">
+          <p className="meta text-center">暂无流水，无法计算存量</p>
+        </div>
+      ) : (
+        <div className="stock-card-body">
+          <div>
+            <p className="text-[13px]" style={{ color: "var(--ink-3)" }}>
+              流通中积分
+            </p>
+            <p
+              className="tabular-nums text-[32px] font-bold leading-none mt-1"
+              style={{ color: "var(--stock-circ)", fontVariantNumeric: "tabular-nums" }}
+            >
+              {fmt(circulating)}
+            </p>
+          </div>
+
+          <div>
+            <div
+              className="stock-bar"
+              role="img"
+              aria-label={`流通中 ${circLabelPct}%，消耗 ${Math.round(spentLabelPct)}%${
+                showFrozen ? `，托管冻结 ${fmt(frozen)}` : ""
+              }`}
+            >
+              {circBarPct > 0 ? (
+                <span className="stock-bar-seg is-circ" style={{ width: `${circBarPct}%` }} />
+              ) : null}
+              {netSpentPct > 0 ? (
+                <span className="stock-bar-seg is-spent" style={{ width: `${netSpentPct}%` }} />
+              ) : null}
+              {frozenPct > 0 ? (
+                <span className="stock-bar-seg is-frozen" style={{ width: `${frozenPct}%` }} />
+              ) : null}
+            </div>
+            <div className="flex flex-wrap items-center gap-x-4 gap-y-1 mt-1.5 text-[12px] tabular-nums">
+              <span style={{ color: "var(--stock-circ)" }}>流通中 {circLabelPct}%</span>
+              <span style={{ color: "var(--ink-3)" }}>消耗 {Math.round(spentLabelPct)}%</span>
+              {showFrozen ? (
+                <span style={{ color: "var(--stock-frozen)" }}>托管 {fmt(frozen)}</span>
+              ) : null}
+            </div>
+          </div>
+
+          <div>
+            <p className="text-[13px] flex flex-wrap items-center gap-x-4 gap-y-1" style={{ color: "var(--ink-2)" }}>
+              <span>
+                累计发放{" "}
+                <strong className="tabular-nums font-semibold" style={{ color: "var(--ink)" }}>
+                  {fmt(granted)}
+                </strong>
+              </span>
+              <span>
+                累计消耗{" "}
+                <strong className="tabular-nums font-semibold" style={{ color: "var(--ink)" }}>
+                  {fmt(spent)}
+                </strong>
+              </span>
+              {showFrozen ? (
+                <span>
+                  托管冻结{" "}
+                  <strong className="tabular-nums font-semibold" style={{ color: "var(--ink)" }}>
+                    {fmt(frozen)}
+                  </strong>
+                </span>
+              ) : null}
+            </p>
+            {showFrozen ? (
+              <p className="text-[12px] mt-1.5" style={{ color: "var(--ink-3)" }}>
+                托管的 {fmt(frozen)} 积分处于冻结态，悬赏采纳或退回后释放
+              </p>
+            ) : null}
+          </div>
+        </div>
+      )}
+    </section>
+  );
+}
+
 function LedgerUserLink({ user, compact }: { user: LedgerParty; compact?: boolean }) {
   const name = partyName(user);
   return (
@@ -207,7 +375,7 @@ function RecentLedgerRow({ it }: { it: PointLedgerItem }) {
       )}
 
       {payee ? (
-        <span className="hidden md:flex items-center gap-1.5 min-w-0 shrink-0">
+        <span className="hidden xl:flex items-center gap-1.5 min-w-0 shrink-0">
           <ArrowRight size={13} className="shrink-0" style={{ color: "var(--ink-3)" }} aria-hidden />
           <LedgerUserLink user={payee} compact />
         </span>
@@ -306,7 +474,7 @@ export default function EconomyClient({ stats }: { stats: EconomyStats }) {
         />
       </div>
 
-      <div className="grid grid-cols-1 lg:grid-cols-2 gap-4 mb-4">
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-4 mb-4 [&>*]:min-w-0">
         <AdminChartCard title="签到趋势" hint="近 14 日每日签到人数">
           {checkinSeries.length === 0 ? (
             <p className="meta text-center py-16">暂无签到数据</p>
@@ -343,48 +511,52 @@ export default function EconomyClient({ stats }: { stats: EconomyStats }) {
             <NamedPieChart data={postsByType} />
           )}
         </AdminChartCard>
-      </div>
 
-      <section className="panel overflow-hidden ledger-feed">
-        <div
-          className="px-5 py-3 flex items-start justify-between gap-3 flex-wrap"
-          style={{ borderBottom: "1px solid var(--line)" }}
-        >
-          <p className="font-medium text-[15px] pt-0.5" style={{ color: "var(--ink)" }}>
-            最近流水
+        <StockOverviewCard stats={stats} />
+
+        <section className="panel overflow-hidden flex flex-col max-h-[420px]">
+          <div
+            className="px-4 py-3 flex items-start justify-between gap-2 flex-wrap"
+            style={{ borderBottom: "1px solid var(--line)" }}
+          >
+            <p className="font-medium text-[15px] pt-0.5" style={{ color: "var(--ink)" }}>
+              最近流水
+            </p>
+            <AdminSegmented
+              size="sm"
+              role="group"
+              ariaLabel="按类型筛选最近流水"
+              options={LEDGER_FILTERS}
+              value={filter}
+              onChange={setFilter}
+            />
+          </div>
+          <p className="px-4 py-2 text-[12.5px] shrink-0" style={{ borderBottom: "1px solid var(--line)", color: "var(--ink-2)" }}>
+            今日 发放{" "}
+            <span className="tabular-nums font-semibold" style={{ color: "var(--ledger-in)" }}>
+              +{fmt(today.granted)}
+            </span>
+            {" · "}
+            消耗{" "}
+            <span className="tabular-nums font-semibold" style={{ color: "var(--ledger-out)" }}>
+              -{fmt(today.spent)}
+            </span>
           </p>
-          <AdminSegmented
-            size="sm"
-            role="group"
-            ariaLabel="按类型筛选最近流水"
-            options={LEDGER_FILTERS}
-            value={filter}
-            onChange={setFilter}
-          />
-        </div>
-        <p className="px-5 py-2 text-[12.5px]" style={{ borderBottom: "1px solid var(--line)", color: "var(--ink-2)" }}>
-          今日 发放{" "}
-          <span className="tabular-nums font-semibold" style={{ color: "var(--ledger-in)" }}>
-            +{fmt(today.granted)}
-          </span>
-          {" · "}
-          消耗{" "}
-          <span className="tabular-nums font-semibold" style={{ color: "var(--ledger-out)" }}>
-            -{fmt(today.spent)}
-          </span>
-        </p>
-        {ledger.length === 0 ? (
-          <p className="meta text-center py-10">暂无流水</p>
-        ) : filtered.length === 0 ? (
-          <p className="meta text-center py-10">该分类下暂无流水</p>
-        ) : (
-          <ul>
-            {filtered.map((it) => (
-              <RecentLedgerRow key={it.id} it={it} />
-            ))}
-          </ul>
-        )}
-      </section>
+          <div className="flex-1 min-h-0 overflow-y-auto">
+            {ledger.length === 0 ? (
+              <p className="meta text-center py-10">暂无流水</p>
+            ) : filtered.length === 0 ? (
+              <p className="meta text-center py-10">该分类下暂无流水</p>
+            ) : (
+              <ul>
+                {filtered.map((it) => (
+                  <RecentLedgerRow key={it.id} it={it} />
+                ))}
+              </ul>
+            )}
+          </div>
+        </section>
+      </div>
 
       <p className="meta text-[12.5px] mt-5">
         用户可在{" "}
diff --git a/frontend/app/announcements/page.tsx b/frontend/app/announcements/page.tsx
index 0c3d174..d096337 100644
--- a/frontend/app/announcements/page.tsx
+++ b/frontend/app/announcements/page.tsx
@@ -41,7 +41,7 @@ function FeaturedAnnouncement({ a }: { a: Announcement }) {
   return (
     <Link
       href={`/announcement/${a.id}`}
-      className="block px-5 sm:px-6 pt-5 sm:pt-6 pb-5 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+      className="block px-5 sm:px-6 pt-5 sm:pt-6 pb-5 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
     >
       <div className="flex items-center gap-2 flex-wrap mb-3">
         <span
@@ -76,7 +76,7 @@ function AnnouncementRow({ a, showDivider }: { a: Announcement; showDivider: boo
   return (
     <Link
       href={`/announcement/${a.id}`}
-      className="block px-5 sm:px-6 py-4 sm:py-5 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+      className="block px-5 sm:px-6 py-4 sm:py-5 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
       style={showDivider ? { borderTop: "1px solid var(--line)" } : undefined}
     >
       <div className="flex items-center gap-2 flex-wrap">
diff --git a/frontend/app/chat/ChatShell.tsx b/frontend/app/chat/ChatShell.tsx
index 886a658..e3dae59 100644
--- a/frontend/app/chat/ChatShell.tsx
+++ b/frontend/app/chat/ChatShell.tsx
@@ -419,7 +419,7 @@ export default function ChatShell({
           </h1>
           <button
             onClick={() => setShowCreate(true)}
-            className="w-8 h-8 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)] transition-colors"
+            className="w-8 h-8 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)] transition-colors"
             style={{ color: "var(--accent)" }}
             aria-label="新建群聊"
             data-tip="新建群聊"
@@ -452,7 +452,7 @@ export default function ChatShell({
                   setQuery("");
                 }}
                 aria-label="清除搜索"
-                className="w-5 h-5 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)] shrink-0"
+                className="w-5 h-5 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)] shrink-0"
                 style={{ color: "var(--ink-3)" }}
               >
                 <X size={12} />
@@ -484,7 +484,7 @@ export default function ChatShell({
                   <button
                     key={u.id}
                     onClick={() => openDM(u.id)}
-                    className="w-full flex items-center gap-2.5 px-2.5 py-2 rounded-lg text-left hover:bg-[var(--accent-soft)] transition-colors"
+                    className="w-full flex items-center gap-2.5 px-2.5 py-2 rounded-lg text-left hover:bg-[var(--panel-2)] transition-colors"
                   >
                     <Avatar name={u.nickname || u.username} src={u.avatar || undefined} size={36} />
                     <div className="min-w-0">
diff --git a/frontend/app/chat/[id]/ChatRoomClient.tsx b/frontend/app/chat/[id]/ChatRoomClient.tsx
index fd94223..5921df1 100644
--- a/frontend/app/chat/[id]/ChatRoomClient.tsx
+++ b/frontend/app/chat/[id]/ChatRoomClient.tsx
@@ -970,7 +970,7 @@ export default function ChatRoomClient({
             {embedded && (
               <Link
                 href="/chat"
-                className="lg:hidden w-8 h-8 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)]"
+                className="lg:hidden w-8 h-8 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)]"
                 style={{ color: "var(--ink-2)" }}
                 aria-label="返回消息列表"
               >
@@ -1017,7 +1017,7 @@ export default function ChatRoomClient({
               <button
                 onClick={() => togglePanel("members")}
                 aria-label="成员列表"
-                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--accent-soft)]"
+                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--panel-2)]"
                 style={{
                   color: rightPanel === "members" ? "var(--accent)" : "var(--ink-2)",
                   background: rightPanel === "members" ? "var(--accent-soft)" : undefined,
@@ -1031,7 +1031,7 @@ export default function ChatRoomClient({
               <button
                 onClick={() => togglePanel("invite")}
                 aria-label="邀请成员"
-                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--accent-soft)]"
+                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--panel-2)]"
                 style={{
                   color: rightPanel === "invite" ? "var(--accent)" : "var(--ink-2)",
                   background: rightPanel === "invite" ? "var(--accent-soft)" : undefined,
@@ -1045,7 +1045,7 @@ export default function ChatRoomClient({
               <button
                 onClick={() => togglePanel("settings")}
                 aria-label="群设置"
-                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--accent-soft)]"
+                className="w-9 h-9 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--panel-2)]"
                 style={{
                   color: rightPanel === "settings" ? "var(--accent)" : "var(--ink-2)",
                   background: rightPanel === "settings" ? "var(--accent-soft)" : undefined,
@@ -1351,7 +1351,7 @@ export default function ChatRoomClient({
                   type="button"
                   onClick={() => setReplyTo(null)}
                   aria-label="取消回复"
-                  className="w-6 h-6 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)]"
+                  className="w-6 h-6 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)]"
                   style={{ color: "var(--ink-3)" }}
                 >
                   <X size={13} />
@@ -1518,7 +1518,7 @@ export default function ChatRoomClient({
               type="button"
               onClick={() => setRightPanel(null)}
               aria-label="关闭面板"
-              className="w-7 h-7 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)]"
+              className="w-7 h-7 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)]"
               style={{ color: "var(--ink-3)" }}
             >
               <X size={14} />
diff --git a/frontend/app/compose/layout.tsx b/frontend/app/compose/layout.tsx
index 735c8ea..8ca1f6f 100644
--- a/frontend/app/compose/layout.tsx
+++ b/frontend/app/compose/layout.tsx
@@ -1,6 +1,13 @@
+import type { Metadata } from "next";
+
+export const metadata: Metadata = {
+  title: "写新帖",
+  robots: { index: false, follow: false },
+};
+
 /**
- * 发帖路由布局：标记 data-compose-viewport，配合 globals.css
- * 让舞台占满 main 剩余高度（对齐私信体量，保留页脚）。
+ * 发帖工作台：标记 data-compose-viewport，锁一屏、隐藏页脚，
+ * 把剩余高度全部留给编辑画布。
  */
 export default function ComposeLayout({
   children,
diff --git a/frontend/app/compose/page.tsx b/frontend/app/compose/page.tsx
index 7358369..7b0bebb 100644
--- a/frontend/app/compose/page.tsx
+++ b/frontend/app/compose/page.tsx
@@ -2,8 +2,6 @@
 
 import { useEffect, useState, Suspense } from "react";
 import { useRouter, useSearchParams } from "next/navigation";
-import Link from "next/link";
-import { ChevronRight } from "lucide-react";
 import { apiMe } from "@/lib/api";
 import PostComposer from "@/components/PostComposer";
 
@@ -30,7 +28,7 @@ function ComposeInner() {
 
   if (!ready) {
     return (
-      <div className="j13-compose-stage px-8 py-16 text-center">
+      <div className="j13-compose-stage is-studio px-8 py-16 text-center">
         <p className="meta">正在准备发帖…</p>
       </div>
     );
@@ -42,17 +40,9 @@ function ComposeInner() {
 export default function ComposePage() {
   return (
     <div className="j13-compose-page">
-      <nav className="meta -mt-4 sm:-mt-6 mb-1.5 flex items-center gap-1 text-[12.5px] leading-none shrink-0">
-        <Link href="/" className="hover:text-[var(--accent)] transition-colors">
-          首页
-        </Link>
-        <ChevronRight size={13} />
-        <span style={{ color: "var(--ink-2)" }}>发布新帖</span>
-      </nav>
-
       <Suspense
         fallback={
-          <div className="j13-compose-stage px-8 py-16 text-center">
+          <div className="j13-compose-stage is-studio px-8 py-16 text-center">
             <p className="meta">正在准备发帖…</p>
           </div>
         }
diff --git a/frontend/app/globals.css b/frontend/app/globals.css
index 9d7e07c..0d29a59 100644
--- a/frontend/app/globals.css
+++ b/frontend/app/globals.css
@@ -6,8 +6,8 @@
    ============================================================ */
 
 :root {
-  /* 浅色（默认）——冷调石墨：底色微蓝灰，面板纯白浮起，层次干净锐利 */
-  --bg: #f6f7f9;
+  /* 浅色（默认）——中性暖灰底 + 纯白卡片浮起 */
+  --bg: #f7f7f5;
   --panel: #ffffff;
   --panel-2: #f2f4f7;
   --tint: #eceff3;
@@ -44,18 +44,34 @@
   --ledger-typed-bg: #f3e8ff;
   --ledger-typed-fg: #7e22ce;
 
-  /* 工作台语义：导航选中态 / 榜单奖牌色 */
-  --nav-active-bg: var(--accent-soft);
+  /* 积分存量概览：分段条与健康徽章 */
+  --stock-circ: #07c05f;
+  --stock-spent: #d1d5db;
+  --stock-frozen: #f59e0b;
+  --stock-frozen-stripe: rgba(255, 255, 255, 0.35);
+  --stock-badge-ok-bg: #07c05f;
+  --stock-badge-ok-fg: #ffffff;
+  --stock-badge-hot-bg: #f59e0b;
+  --stock-badge-hot-fg: #ffffff;
+  --stock-badge-low-bg: var(--tint);
+  --stock-badge-low-fg: var(--ink-3);
+
+  /* 工作台语义：选中用描边+文字色指示，底保持面板色，避免品牌色铺底 */
+  --nav-active-bg: var(--panel);
   --nav-active-ink: var(--accent);
-  --nav-active-line: rgba(59, 91, 219, 0.22);
+  --nav-active-line: rgba(59, 91, 219, 0.38);
   --rank-1: #96620f;
   --rank-2: #5d6676;
   --rank-3: #a05a2c;
 
-  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
+  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
   --shadow: 0 2px 8px rgba(16, 24, 40, 0.05), 0 10px 28px rgba(16, 24, 40, 0.06);
   --shadow-lg: 0 6px 16px rgba(16, 24, 40, 0.08), 0 20px 48px rgba(16, 24, 40, 0.12);
 
+  /* 页面画布：极淡品牌绿光晕 + SVG 噪点（色值集中于此） */
+  --bg-halo: rgba(7, 192, 95, 0.04);
+  --bg-noise-opacity: 0.03;
+
   /* next/font 构建期自托管，变量由 layout.tsx 注入；
      本地系统字体仅作网络字体分片就绪前的回退（PingFang/雅黑与 Noto 观感接近） */
   --font-display: var(--font-jakarta), var(--font-noto-sc), -apple-system,
@@ -65,7 +81,7 @@
   --font-mono: var(--font-jetbrains), var(--font-noto-sc), ui-monospace,
     "Cascadia Code", Consolas, monospace;
 
-  --r: 18px;
+  --r: 12px;
   --r-sm: 12px;
 
   /* 顶栏 68px 条 + 1px 底边；main 桌面 py-9。侧栏 sticky 必须等于
@@ -80,8 +96,8 @@
 }
 
 .dark {
-  /* 近黑锌灰：面板逐层浮起，靛蓝提亮为长春花蓝 */
-  --bg: #0f1115;
+  /* 近黑暖灰：面板逐层浮起，靛蓝提亮为长春花蓝 */
+  --bg: #101211;
   --panel: #181b21;
   --panel-2: #20242c;
   --tint: #282d37;
@@ -117,18 +133,32 @@
   --ledger-typed-bg: rgba(126, 34, 206, 0.28);
   --ledger-typed-fg: #e9d5ff;
 
-  /* 工作台语义 */
-  --nav-active-bg: rgba(141, 163, 255, 0.14);
+  --stock-circ: #34d399;
+  --stock-spent: #4b5563;
+  --stock-frozen: #fbbf24;
+  --stock-frozen-stripe: rgba(0, 0, 0, 0.22);
+  --stock-badge-ok-bg: #059669;
+  --stock-badge-ok-fg: #ecfdf5;
+  --stock-badge-hot-bg: #d97706;
+  --stock-badge-hot-fg: #fffbeb;
+  --stock-badge-low-bg: var(--tint);
+  --stock-badge-low-fg: var(--ink-3);
+
+  /* 工作台语义：选中不铺品牌色底 */
+  --nav-active-bg: var(--panel);
   --nav-active-ink: #a9b8ff;
-  --nav-active-line: rgba(141, 163, 255, 0.3);
+  --nav-active-line: rgba(141, 163, 255, 0.38);
   --rank-1: #e3bf74;
   --rank-2: #b9c1cd;
   --rank-3: #e0a06e;
 
-  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
+  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
   --shadow: 0 2px 8px rgba(0, 0, 0, 0.28), 0 12px 32px rgba(0, 0, 0, 0.22);
   --shadow-lg: 0 6px 18px rgba(0, 0, 0, 0.35), 0 24px 56px rgba(0, 0, 0, 0.3);
 
+  --bg-halo: rgba(7, 192, 95, 0.03);
+  --bg-noise-opacity: 0.04;
+
   color-scheme: dark;
 }
 
@@ -148,19 +178,14 @@ body {
   isolation: isolate; /* 让 z-index:-1 的画布层停在内容之下、html 之上 */
 }
 
-/* 浏览器最后一层画布：氛围光 + 石墨微粒。
-   纯 CSS（令牌 + 内联 SVG），不跟位图——跟浅/暗/accent 换肤，无限缩放，无额外请求。 */
+/* 克制画布：fixed 伪元素（不用 background-attachment:fixed，避免移动端掉帧） */
 body::before {
   content: "";
   position: fixed;
   inset: 0;
   z-index: -1;
   pointer-events: none;
-  background-image:
-    radial-gradient(ellipse 80% 52% at 12% -18%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 62%),
-    radial-gradient(ellipse 48% 36% at 100% 0%, color-mix(in srgb, var(--ink) 4%, transparent), transparent 58%),
-    radial-gradient(ellipse 42% 28% at 78% 100%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 60%),
-    linear-gradient(180deg, color-mix(in srgb, var(--panel) 40%, transparent) 0%, transparent 32%);
+  background: radial-gradient(ellipse 80% 50% at 50% -20%, var(--bg-halo), transparent 70%);
 }
 
 body::after {
@@ -169,23 +194,11 @@ body::after {
   inset: 0;
   z-index: -1;
   pointer-events: none;
-  opacity: 0.032;
+  opacity: var(--bg-noise-opacity);
   background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 160 160' width='160' height='160'%3E%3Cfilter id='n' x='0' y='0' width='100%25' height='100%25'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
   background-size: 160px 160px;
 }
 
-.dark body::before {
-  background-image:
-    radial-gradient(ellipse 80% 52% at 12% -18%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 62%),
-    radial-gradient(ellipse 48% 36% at 100% 0%, color-mix(in srgb, var(--ink) 6%, transparent), transparent 58%),
-    radial-gradient(ellipse 42% 28% at 78% 100%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 60%),
-    linear-gradient(180deg, color-mix(in srgb, var(--panel) 22%, transparent) 0%, transparent 36%);
-}
-
-.dark body::after {
-  opacity: 0.05;
-}
-
 @media print {
   body::before,
   body::after {
@@ -399,8 +412,140 @@ body::after {
 
 .j13-compose-typebar {
   display: flex;
-  flex-wrap: wrap;
-  gap: 8px;
+  flex-direction: column;
+  gap: 6px;
+}
+.j13-compose-typeopt {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 3px 4px 3px 3px;
+  border-radius: 12px;
+  border: 1px solid var(--line);
+  background: var(--panel);
+  color: var(--ink);
+  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
+}
+.j13-compose-typeopt:hover:not(:has(.j13-compose-typeopt-hit:disabled)) {
+  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
+}
+.j13-compose-typeopt.is-on {
+  background: var(--accent-soft);
+  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
+}
+.j13-compose-typeopt.is-on.is-warn {
+  background: color-mix(in srgb, var(--danger-soft) 70%, var(--panel));
+  border-color: color-mix(in srgb, var(--danger) 36%, var(--line));
+}
+.j13-compose-typeopt:has(.j13-compose-typeopt-hit:disabled):not(.is-on) {
+  opacity: 0.45;
+}
+.j13-compose-typeopt-hit {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  align-items: flex-start;
+  gap: 10px;
+  padding: 6px 4px 6px 7px;
+  border: 0;
+  border-radius: 9px;
+  background: transparent;
+  color: inherit;
+  text-align: left;
+  cursor: pointer;
+  appearance: none;
+}
+.j13-compose-typeopt-hit:disabled {
+  cursor: not-allowed;
+}
+.j13-compose-typeopt-hit:focus-visible,
+.j13-compose-typeopt-setup:focus-visible {
+  outline: 2px solid var(--accent);
+  outline-offset: 1px;
+}
+.j13-compose-typeopt-ico {
+  width: 32px;
+  height: 32px;
+  border-radius: 9px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex-shrink: 0;
+  background: var(--panel-2);
+  color: var(--ink-2);
+}
+.j13-compose-typeopt.is-on .j13-compose-typeopt-ico {
+  background: var(--accent);
+  color: var(--accent-on);
+}
+.j13-compose-typeopt.is-on.is-warn .j13-compose-typeopt-ico {
+  background: var(--danger);
+  color: #fff;
+}
+.j13-compose-typeopt-copy {
+  min-width: 0;
+  flex: 1;
+  padding-top: 1px;
+}
+.j13-compose-typeopt-label {
+  display: block;
+  font-size: 13.5px;
+  font-weight: 700;
+  line-height: 1.3;
+  color: var(--ink);
+  letter-spacing: -0.01em;
+}
+.j13-compose-typeopt-hint {
+  display: block;
+  margin-top: 2px;
+  font-size: 12px;
+  font-weight: 500;
+  line-height: 1.4;
+  color: var(--ink-3);
+}
+.j13-compose-typeopt.is-on .j13-compose-typeopt-hint.is-status {
+  color: color-mix(in srgb, var(--accent) 58%, var(--ink-2));
+  font-variant-numeric: tabular-nums;
+}
+.j13-compose-typeopt-hint.is-warn {
+  color: var(--danger);
+  font-weight: 650;
+}
+.j13-compose-typeopt-setup {
+  flex-shrink: 0;
+  height: 26px;
+  padding: 0 9px;
+  margin-right: 2px;
+  border-radius: 999px;
+  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--line));
+  background: color-mix(in srgb, var(--accent-soft) 80%, var(--panel));
+  color: var(--accent);
+  font-size: 11.5px;
+  font-weight: 700;
+  letter-spacing: 0.02em;
+  line-height: 1;
+  white-space: nowrap;
+  cursor: pointer;
+}
+.j13-compose-typeopt-setup:hover {
+  background: var(--accent);
+  color: var(--accent-on);
+  border-color: var(--accent);
+}
+.j13-compose-typeopt-setup.is-warn {
+  border-color: color-mix(in srgb, var(--danger) 40%, var(--line));
+  background: color-mix(in srgb, var(--danger-soft) 85%, var(--panel));
+  color: var(--danger);
+}
+.j13-compose-typeopt-setup.is-warn:hover {
+  background: var(--danger);
+  color: #fff;
+  border-color: var(--danger);
+}
+.dark .j13-compose-typeopt.is-on.is-warn .j13-compose-typeopt-ico,
+.dark .j13-compose-typeopt-setup.is-warn:hover {
+  color: #1a0c0b;
 }
 .j13-compose-typechip {
   height: 34px;
@@ -468,9 +613,15 @@ body::after {
   width: 6.5rem;
 }
 .j13-lottery-prize-table .col-actions {
-  width: 4.5rem;
+  width: 5.25rem;
   text-align: right;
 }
+.j13-lottery-prize-table .col-actions > span {
+  display: inline-flex;
+}
+.j13-lottery-prize-table .col-actions .btn:disabled {
+  pointer-events: none;
+}
 .j13-lottery-prize-table .j13-compose-field {
   width: 100%;
   padding: 7px 10px;
@@ -1513,19 +1664,18 @@ body::after {
   display: flex;
   align-items: center;
   gap: 10px;
-  height: 2.5rem;
-  min-height: 2.5rem;
-  padding: 0 12px;
+  min-height: 3.25rem;
+  padding: 8px 10px 8px 8px;
   background: var(--panel);
   border: 1px solid var(--line);
   border-radius: 12px;
   color: var(--ink);
   text-align: left;
-  transition: border-color 0.15s ease, box-shadow 0.15s ease;
+  transition: background 0.12s ease, border-color 0.12s ease, box-shadow 0.15s ease;
   cursor: pointer;
 }
 .j13-board-trigger:hover:not(:disabled) {
-  border-color: color-mix(in srgb, var(--line-2) 40%, var(--line));
+  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
 }
 .j13-board-trigger:focus { outline: none; }
 .j13-board-trigger:focus-visible,
@@ -1538,17 +1688,62 @@ body::after {
   opacity: 0.65;
   cursor: not-allowed;
 }
+.j13-board-trigger.is-empty {
+  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
+  background: var(--accent-soft);
+}
+.j13-board-trigger.is-empty .j13-board-trigger-hint {
+  color: var(--accent);
+  font-weight: 650;
+}
+.j13-board-trigger-copy {
+  min-width: 0;
+  flex: 1;
+}
+.j13-board-trigger-name {
+  display: block;
+  font-size: 13.5px;
+  font-weight: 700;
+  line-height: 1.3;
+  letter-spacing: -0.01em;
+}
+.j13-board-trigger-hint {
+  display: block;
+  margin-top: 2px;
+  font-size: 12px;
+  font-weight: 500;
+  line-height: 1.35;
+  color: var(--ink-3);
+}
 .j13-board-trigger-ico {
-  width: 24px;
-  height: 24px;
-  border-radius: 7px;
+  width: 32px;
+  height: 32px;
+  border-radius: 9px;
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  font-size: 11px;
+  font-size: 13px;
   font-weight: 800;
   flex-shrink: 0;
 }
+.j13-board-trigger-ico.is-placeholder {
+  background: var(--panel-2);
+  color: var(--ink-3);
+}
+.j13-board-option .j13-board-trigger-ico {
+  width: 24px;
+  height: 24px;
+  border-radius: 7px;
+  font-size: 11px;
+}
+.j13-compose-req {
+  margin-left: 6px;
+  font-size: 11px;
+  font-weight: 700;
+  letter-spacing: 0.06em;
+  color: var(--accent);
+  vertical-align: 0.05em;
+}
 .j13-board-menu {
   position: absolute;
   z-index: 40;
@@ -1856,36 +2051,6 @@ body::after {
   min-height: 0;
   gap: 0;
 }
-.j13-md-panes.is-split {
-  grid-template-columns: 1fr;
-}
-@media (min-width: 960px) {
-  .j13-md-panes.is-split {
-    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
-  }
-  .j13-md-panes.is-split .j13-md-write-wrap {
-    border-right: 1px solid var(--line);
-    padding-right: 1rem;
-    margin-right: 0;
-  }
-  .j13-md-panes.is-split .j13-md-preview {
-    padding-left: 1rem;
-  }
-}
-/* 窄屏双栏：上下分栏仍同时显示 */
-@media (max-width: 959px) {
-  .j13-md-panes.is-split {
-    grid-template-rows: minmax(220px, 1fr) minmax(220px, 1fr);
-    gap: 0;
-  }
-  .j13-md-panes.is-split .j13-md-write-wrap {
-    border-bottom: 1px solid var(--line);
-    padding-bottom: 0.5rem;
-  }
-  .j13-md-panes.is-split .j13-md-preview {
-    padding-top: 0.35rem;
-  }
-}
 .j13-md-panes > [hidden] {
   display: none !important;
 }
@@ -2363,14 +2528,23 @@ a.j13-att-cta:hover {
 }
 
 
-/* 发帖/编辑：占满 main 剩余高度，减少卡片下方空余（保留页脚） */
+/* 发帖/编辑工作台：锁一屏、隐藏页脚，高度全部给编辑画布 */
+body:has([data-compose-viewport]) {
+  height: 100dvh;
+  max-height: 100dvh;
+  overflow: hidden;
+}
+body:has([data-compose-viewport]) > footer {
+  display: none;
+}
 body:has([data-compose-viewport]) #main {
+  flex: 1 1 0;
+  min-height: 0;
   display: flex;
   flex-direction: column;
-  min-height: 0;
-  /* 略收紧上下边距，把高度留给舞台 */
-  padding-top: 1.15rem;
-  padding-bottom: 1.15rem;
+  padding-top: 0.55rem;
+  padding-bottom: 0.55rem;
+  overflow: hidden;
 }
 body:has([data-compose-viewport]) #main > [data-compose-viewport] {
   flex: 1 1 auto;
@@ -2379,6 +2553,283 @@ body:has([data-compose-viewport]) #main > [data-compose-viewport] {
   min-height: 0;
 }
 
+/* 发帖工作台：左画布 + 右设置栏（窄屏设置收入抽屉） */
+.j13-compose-stage.is-studio {
+  overflow: hidden;
+}
+.j13-compose-stage.is-studio:not(:has(.j13-compose-studio)) {
+  align-items: center;
+  justify-content: center;
+}
+.j13-compose-stage.is-studio .j13-compose-toolbar {
+  position: relative;
+  top: auto;
+  z-index: 8;
+  padding: 0.7rem 1rem 0.7rem 0.85rem;
+  background: var(--panel);
+  border-radius: var(--r) var(--r) 0 0;
+}
+.j13-compose-toolbar-lead {
+  display: flex;
+  align-items: center;
+  gap: 0.65rem;
+  min-width: 0;
+}
+.j13-compose-toolbar-copy {
+  display: flex;
+  flex-direction: column;
+  gap: 0.1rem;
+  min-width: 0;
+}
+.j13-compose-toolbar-sub {
+  margin: 0;
+  font-size: 12px;
+  line-height: 1.3;
+  color: var(--ink-3);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.j13-compose-back {
+  width: 34px;
+  height: 34px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 10px;
+  color: var(--ink-2);
+  background: transparent;
+  border: 0;
+  flex-shrink: 0;
+  transition: background 0.12s ease, color 0.12s ease;
+}
+.j13-compose-back:hover,
+.j13-compose-back:focus-visible {
+  background: var(--accent-soft);
+  color: var(--accent);
+}
+.j13-compose-toolbar-hint {
+  font-size: 12px;
+  color: var(--ink-3);
+  max-width: 14rem;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.j13-compose-rail-toggle {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+}
+.j13-compose-rail-toggle-count {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 1.15rem;
+  height: 1.15rem;
+  padding: 0 0.3rem;
+  border-radius: 999px;
+  font-size: 11px;
+  font-weight: 700;
+  color: var(--accent);
+  background: var(--accent-soft);
+}
+.j13-compose-draft {
+  flex-shrink: 0;
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  padding: 0.7rem 1.1rem;
+  font-size: 13px;
+  color: var(--ink);
+  background: var(--accent-soft);
+  border-bottom: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
+}
+.j13-compose-banner-error {
+  flex-shrink: 0;
+  margin: 0;
+  border-radius: 0;
+  border-left: 0;
+  border-right: 0;
+}
+.j13-compose-studio {
+  flex: 1 1 auto;
+  min-height: 0;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr);
+  grid-template-rows: minmax(0, 1fr);
+  position: relative;
+}
+.j13-compose-studio-canvas {
+  min-width: 0;
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+  padding: 0.2rem 1.15rem 0.7rem;
+  overflow: hidden;
+}
+.j13-compose-title-row {
+  display: flex;
+  align-items: flex-end;
+  gap: 0.75rem;
+  flex-shrink: 0;
+}
+.j13-compose-title-count {
+  font-size: 12px;
+  color: var(--ink-3);
+  padding-bottom: 0.8rem;
+  flex-shrink: 0;
+}
+.j13-compose-stage.is-studio .j13-compose-canvas,
+.j13-compose-stage.is-studio .j13-md-editor {
+  flex: 1 1 auto;
+  min-height: 0;
+  overflow: hidden;
+}
+.j13-compose-stage.is-studio .j13-md-textarea,
+.j13-compose-stage.is-studio .j13-md-preview {
+  min-height: 0;
+}
+.j13-compose-rail-backdrop {
+  display: none;
+}
+.j13-compose-studio-rail {
+  min-height: 0;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 1.15rem;
+  padding: 1rem 1.05rem 1.35rem;
+  overflow-y: auto;
+  background: color-mix(in srgb, var(--bg) 62%, var(--panel));
+  border-left: 1px solid var(--line);
+}
+.j13-compose-rail-head {
+  display: none;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  margin: -0.15rem 0 0.15rem;
+}
+.j13-compose-rail-head-title {
+  margin: 0;
+  font-size: 15px;
+  font-weight: 700;
+  color: var(--ink);
+}
+.j13-compose-rail-block {
+  display: flex;
+  flex-direction: column;
+  gap: 0.7rem;
+  flex-shrink: 0;
+}
+.j13-compose-studio-rail .j13-compose-meta {
+  flex-direction: column;
+  gap: 0.85rem;
+}
+.j13-compose-studio-rail .j13-compose-meta-board,
+.j13-compose-studio-rail .j13-compose-meta-tags {
+  width: 100%;
+  max-width: none;
+  flex: none;
+}
+.j13-compose-studio-rail .j13-compose-typebar {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+.j13-compose-studio-rail .j13-compose-section {
+  padding: 0;
+  border: 0;
+  background: transparent;
+  border-radius: 0;
+}
+.j13-compose-studio-rail .j13-compose-drop {
+  min-height: 5.5rem;
+  padding: 0.8rem 0.7rem;
+}
+.j13-compose-studio-rail .j13-compose-drop-lead {
+  font-size: 13px;
+}
+.j13-compose-studio-rail .j13-compose-typepanel {
+  padding: 0.85rem 0.9rem;
+}
+.j13-compose-typemodal-body {
+  max-height: min(78vh, 42rem);
+  overflow-y: auto;
+  padding-right: 2px;
+}
+.j13-compose-typemodal-body .j13-compose-typepanel {
+  padding: 0;
+  border: 0;
+  border-radius: 0;
+  background: transparent;
+}
+
+@media (max-width: 1279px) {
+  .j13-compose-rail-backdrop {
+    display: block;
+    position: fixed;
+    inset: 0;
+    z-index: 69;
+    border: 0;
+    padding: 0;
+    cursor: pointer;
+    background: color-mix(in srgb, var(--ink) 28%, transparent);
+  }
+  .j13-compose-studio-rail {
+    position: fixed;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: auto;
+    width: min(100%, 24.5rem);
+    z-index: 70;
+    border-left: 1px solid var(--line);
+    box-shadow: var(--shadow-lg);
+    transform: translateX(100%);
+    visibility: hidden;
+    pointer-events: none;
+    transition: transform 0.22s ease, visibility 0.22s ease;
+  }
+  .j13-compose-studio-rail.is-open {
+    transform: translateX(0);
+    visibility: visible;
+    pointer-events: auto;
+  }
+  .j13-compose-rail-head {
+    display: flex;
+  }
+}
+@media (min-width: 1280px) {
+  .j13-compose-studio {
+    grid-template-columns: minmax(0, 1fr) minmax(18.5rem, 21.5rem);
+  }
+  .j13-compose-studio-canvas {
+    padding: 0.25rem 1.5rem 0.85rem 1.6rem;
+  }
+  .j13-compose-rail-toggle {
+    display: none;
+  }
+  .j13-compose-rail-head {
+    display: none;
+  }
+  .j13-compose-rail-backdrop {
+    display: none !important;
+  }
+}
+@media (max-width: 639px) {
+  .j13-compose-toolbar-hint {
+    display: none;
+  }
+  .j13-compose-studio-canvas {
+    padding-left: 0.9rem;
+    padding-right: 0.9rem;
+  }
+}
+
 /* 聊天页：整页锁在视口内，避免「页面滚动 + 对话区滚动」双滚动条 */
 body:has([data-chat-viewport]) {
   height: 100dvh;
@@ -2717,6 +3168,15 @@ h1, h2, h3, h4 {
   border-radius: 6px;
 }
 
+/* skip-link / 点击主栏空白会聚焦 #main（tabIndex=-1）。
+   本文件 :focus-visible 未分层，会压过 Tailwind .outline-none，画出整栏主题色描边。 */
+#main:focus,
+#main:focus-visible,
+.admin-canvas:focus,
+.admin-canvas:focus-visible {
+  outline: none;
+}
+
 /* 消息侧栏搜索：单层描边，避免外框 + focus-visible 双线 */
 .j13-chat-search:focus-within {
   border-color: var(--accent) !important;
@@ -3135,9 +3595,6 @@ a.j13-mention-token:hover {
     color: var(--accent);
   }
 
-  .ledger-feed {
-    max-width: 1000px;
-  }
   .ledger-row {
     display: flex;
     align-items: center;
@@ -3204,6 +3661,71 @@ a.j13-mention-token:hover {
     line-height: 1.2;
   }
 
+  /* 积分存量概览 */
+  .stock-card {
+    display: flex;
+    flex-direction: column;
+    min-height: 160px;
+    padding: 20px;
+    background: var(--panel);
+    border: 1px solid var(--line);
+    border-radius: 12px;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
+  }
+  .stock-card-body {
+    display: flex;
+    flex-direction: column;
+    gap: 12px;
+  }
+  .stock-badge {
+    display: inline-flex;
+    align-items: center;
+    font-size: 11px;
+    font-weight: 600;
+    line-height: 1.3;
+    padding: 4px 10px;
+    border-radius: 999px;
+    white-space: nowrap;
+    font-variant-numeric: tabular-nums;
+  }
+  .stock-badge.is-low {
+    background: var(--stock-badge-low-bg);
+    color: var(--stock-badge-low-fg);
+  }
+  .stock-badge.is-ok {
+    background: var(--stock-badge-ok-bg);
+    color: var(--stock-badge-ok-fg);
+  }
+  .stock-badge.is-hot {
+    background: var(--stock-badge-hot-bg);
+    color: var(--stock-badge-hot-fg);
+  }
+  .stock-bar {
+    display: flex;
+    height: 10px;
+    border-radius: 8px;
+    overflow: hidden;
+    background: var(--tint);
+  }
+  .stock-bar-seg {
+    height: 100%;
+    min-width: 0;
+  }
+  .stock-bar-seg.is-circ {
+    background: var(--stock-circ);
+  }
+  .stock-bar-seg.is-spent {
+    background: var(--stock-spent);
+  }
+  .stock-bar-seg.is-frozen {
+    background-color: var(--stock-frozen);
+    background-image: repeating-linear-gradient(
+      -45deg,
+      var(--stock-frozen-stripe) 0 3px,
+      transparent 3px 7px
+    );
+  }
+
   .admin-toolbar {
     display: flex;
     flex-direction: column;
@@ -4303,9 +4825,9 @@ a.j13-mention-token:hover {
     background: var(--panel-2);
   }
   .j13-tab[aria-selected="true"] {
-    background: var(--accent-soft);
-    border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
-    color: var(--accent);
+    background: var(--nav-active-bg);
+    border-color: var(--nav-active-line);
+    color: var(--nav-active-ink);
     font-weight: 600;
   }
   .j13-tab:active {
@@ -4341,7 +4863,7 @@ a.j13-mention-token:hover {
   }
   .j13-raillink:hover,
   .j13-raillink:focus-visible {
-    background: var(--accent-soft);
+    background: var(--panel-2);
     color: var(--ink);
   }
   .j13-raillink[aria-current="page"],
@@ -4367,7 +4889,7 @@ a.j13-mention-token:hover {
     transition: border-color 0.16s ease, background 0.16s ease;
   }
   .j13-bcard:hover {
-    border-color: var(--nav-active-line);
+    border-color: var(--line-2);
     background: var(--panel-2);
   }
   .j13-bcard:focus-visible {
@@ -4450,8 +4972,8 @@ a.j13-mention-token:hover {
   }
   .j13-about-item:hover,
   .j13-about-item:focus-visible {
-    background: var(--accent-soft);
-    border-color: var(--nav-active-line);
+    background: var(--panel);
+    border-color: var(--line-2);
   }
   .j13-about-ico {
     width: 30px;
@@ -4741,9 +5263,9 @@ a.j13-mention-token:hover {
   }
   .j13-chip:hover,
   .j13-chip:focus-visible {
-    background: var(--accent-soft);
-    border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
-    color: var(--accent);
+    background: var(--panel-2);
+    border-color: var(--line-2);
+    color: var(--ink);
   }
   .j13-chip[aria-current="page"],
   .j13-chip[aria-current="page"]:hover,
@@ -4791,7 +5313,7 @@ a.j13-mention-token:hover {
   .j13-toc-link:hover,
   .j13-toc-link:focus-visible {
     color: var(--accent);
-    background: var(--accent-soft);
+    background: var(--panel-2);
   }
   .j13-toc-link.is-active,
   .j13-toc-link.is-active:hover,
@@ -4799,7 +5321,7 @@ a.j13-mention-token:hover {
     color: var(--accent);
     font-weight: 600;
     border-left-color: var(--accent);
-    background: var(--accent-soft);
+    background: transparent;
   }
 }
 
diff --git a/frontend/app/layout.tsx b/frontend/app/layout.tsx
index eccb130..7d35f5a 100644
--- a/frontend/app/layout.tsx
+++ b/frontend/app/layout.tsx
@@ -83,6 +83,8 @@ export default async function RootLayout({
   const settings = await getPublicSettingsCached();
   const accent = settings.accent;
   const accentCSS = accentStyleCSS(accent || "");
+  const customCSS = (settings.custom_css || "").trim();
+  const customJS = (settings.custom_js || "").trim();
   const motionCfg = motionConfigFromSettings(settings);
   const motionHtmlClass = [
     !motionCfg.ui_animations ? "j13-reduce-motion" : "",
@@ -117,6 +119,13 @@ export default async function RootLayout({
             dangerouslySetInnerHTML={{ __html: accentCSS }}
           />
         ) : null}
+        {customCSS ? (
+          <style
+            id="j13-custom-css"
+            data-custom-css-source="ssr"
+            dangerouslySetInnerHTML={{ __html: customCSS }}
+          />
+        ) : null}
         <a href="#main" className="skip-link">
           跳到主要内容
         </a>
@@ -147,9 +156,12 @@ export default async function RootLayout({
         <Toaster />
         <TipHost />
         <AccountGuard />
-        <ThemeSync initialAccent={accent || ""} />
+        <ThemeSync initialAccent={accent || ""} initialCustomCSS={customCSS} />
         <VisitBeacon />
         <RealtimeProvider userId={user ? user.id : null} />
+        {customJS ? (
+          <script id="j13-custom-js" dangerouslySetInnerHTML={{ __html: customJS }} />
+        ) : null}
       </body>
     </html>
   );
diff --git a/frontend/app/notifications/NotificationsClient.tsx b/frontend/app/notifications/NotificationsClient.tsx
index 902a1c8..0c648d3 100644
--- a/frontend/app/notifications/NotificationsClient.tsx
+++ b/frontend/app/notifications/NotificationsClient.tsx
@@ -103,7 +103,7 @@ export default function NotificationsClient({ initialData }: { initialData: Noti
             <button
               key={n.id}
               onClick={() => handleClick(n)}
-              className={`w-full text-left px-4 sm:px-5 py-4 flex items-start gap-3.5 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)] ${
+              className={`w-full text-left px-4 sm:px-5 py-4 flex items-start gap-3.5 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)] ${
                 n.is_read ? "" : "bg-[var(--panel-2)]"
               }`}
               style={{
diff --git a/frontend/app/post/[id]/edit/layout.tsx b/frontend/app/post/[id]/edit/layout.tsx
new file mode 100644
index 0000000..4c243e7
--- /dev/null
+++ b/frontend/app/post/[id]/edit/layout.tsx
@@ -0,0 +1,22 @@
+import type { Metadata } from "next";
+
+export const metadata: Metadata = {
+  title: "编辑帖子",
+  robots: { index: false, follow: false },
+};
+
+/** 编辑帖与发帖共用工作台视口（锁一屏、隐藏页脚） */
+export default function EditPostLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <div
+      data-compose-viewport
+      className="flex flex-col flex-1 min-h-0 w-full"
+    >
+      {children}
+    </div>
+  );
+}
diff --git a/frontend/app/post/[id]/edit/page.tsx b/frontend/app/post/[id]/edit/page.tsx
index fe6f282..df86fea 100644
--- a/frontend/app/post/[id]/edit/page.tsx
+++ b/frontend/app/post/[id]/edit/page.tsx
@@ -1,7 +1,5 @@
 import { cookies } from "next/headers";
 import { notFound, redirect } from "next/navigation";
-import Link from "next/link";
-import { ChevronRight } from "lucide-react";
 import { authCookieHeader } from "@/lib/cookies";
 import { getMeCached } from "@/lib/serverData";
 import { fetchPostDetail } from "@/lib/api";
@@ -35,25 +33,7 @@ export default async function EditPostPage({ params }: PageProps) {
   }
 
   return (
-    <div
-      data-compose-viewport
-      className="j13-compose-page w-full"
-    >
-      <nav className="meta -mt-4 sm:-mt-6 mb-1.5 flex items-center gap-1 flex-wrap text-[12.5px] leading-none shrink-0">
-        <Link href="/" className="hover:text-[var(--accent)] transition-colors">
-          首页
-        </Link>
-        <ChevronRight size={13} />
-        <Link
-          href={`/post/${post.id}`}
-          className="hover:text-[var(--accent)] transition-colors truncate max-w-[12rem]"
-        >
-          帖子详情
-        </Link>
-        <ChevronRight size={13} />
-        <span style={{ color: "var(--ink-2)" }}>编辑</span>
-      </nav>
-
+    <div className="j13-compose-page w-full">
       <EditPostClient
         postId={post.id}
         initialTitle={post.title}
diff --git a/frontend/app/post/[id]/page.tsx b/frontend/app/post/[id]/page.tsx
index 42b959b..5310124 100644
--- a/frontend/app/post/[id]/page.tsx
+++ b/frontend/app/post/[id]/page.tsx
@@ -236,7 +236,7 @@ function AuthorPosts({ posts }: { posts: PostListItem[] }) {
             <Link
               href={`/post/${p.id}`}
               data-tip={p.title}
-              className="block rounded-[10px] px-2 py-2 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+              className="block rounded-[10px] px-2 py-2 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
             >
               <span
                 className="block text-[13px] leading-snug line-clamp-2"
diff --git a/frontend/components/BoardPicker.tsx b/frontend/components/BoardPicker.tsx
index e0e7566..4d2ee72 100644
--- a/frontend/components/BoardPicker.tsx
+++ b/frontend/components/BoardPicker.tsx
@@ -91,13 +91,14 @@ export default function BoardPicker({
     }
   };
 
+  const empty = !loading && !selected;
   const label = loading
     ? "加载板块…"
     : selected
       ? selected.name
       : boards.length === 0
         ? "暂无可用板块"
-        : "选择板块";
+        : "请选择板块";
 
   const colorIdx = selected
     ? boardColorIndex(selected, selectedIdx)
@@ -108,19 +109,28 @@ export default function BoardPicker({
       <button
         id={id}
         type="button"
-        className="j13-board-trigger"
+        className={`j13-board-trigger${empty ? " is-empty" : ""}`}
         disabled={disabled || loading || boards.length === 0}
         aria-haspopup="listbox"
         aria-expanded={open}
         aria-controls={listId}
+        aria-invalid={empty || undefined}
         onClick={() => setOpen((v) => !v)}
         onKeyDown={onTriggerKeyDown}
       >
-        <span className={`j13-board-trigger-ico av-${colorIdx}`} aria-hidden>
+        <span
+          className={`j13-board-trigger-ico${selected ? ` av-${colorIdx}` : " is-placeholder"}`}
+          aria-hidden
+        >
           {(selected?.name || "板").slice(0, 1)}
         </span>
-        <span className="flex-1 min-w-0 truncate font-semibold text-[14px]">
-          {label}
+        <span className="j13-board-trigger-copy">
+          <span className="j13-board-trigger-name">{label}</span>
+          {empty ? (
+            <span className="j13-board-trigger-hint">发布前必须选择</span>
+          ) : loading ? (
+            <span className="j13-board-trigger-hint">正在加载</span>
+          ) : null}
         </span>
         <ChevronDown
           size={16}
diff --git a/frontend/components/ComposeAttachments.tsx b/frontend/components/ComposeAttachments.tsx
index f1acc3c..e60f45e 100644
--- a/frontend/components/ComposeAttachments.tsx
+++ b/frontend/components/ComposeAttachments.tsx
@@ -101,11 +101,7 @@ export default function ComposeAttachments({
   const accept = buildAcceptAttr(limits.exts, limits.extLimit);
 
   const hintLine = limits.extLimit
-    ? `单文件 ≤${limits.maxMB}MB，最多 ${limits.maxCount} 个；允许 ${
-        limits.exts.length > 8
-          ? limits.exts.slice(0, 8).map((e) => `.${e}`).join(" ") + "…"
-          : limits.exts.map((e) => `.${e}`).join(" ") || "（列表为空）"
-      }`
+    ? `单文件 ≤${limits.maxMB}MB，最多 ${limits.maxCount} 个`
     : `未限制类型，单文件 ≤${limits.maxMB}MB，最多 ${limits.maxCount} 个`;
 
   /** 仅加入待传列表，不立刻上传 */
diff --git a/frontend/components/ConfirmDialog.tsx b/frontend/components/ConfirmDialog.tsx
index 5725b08..c52ac4d 100644
--- a/frontend/components/ConfirmDialog.tsx
+++ b/frontend/components/ConfirmDialog.tsx
@@ -3,7 +3,7 @@
 import Modal from "@/components/Modal";
 
 /**
- * 站点风格确认框：基于 Modal，仅取消/关闭可关，避免点遮罩误关。
+ * 站点风格确认框：基于 Modal。点遮罩不关（需明确取消/关闭）；ESC / 取消 / 关闭可关。
  * danger 主按钮使用 btn-danger，其余用 btn-primary。
  */
 export default function ConfirmDialog({
diff --git a/frontend/components/Header.tsx b/frontend/components/Header.tsx
index 0aa79d0..970e83c 100644
--- a/frontend/components/Header.tsx
+++ b/frontend/components/Header.tsx
@@ -199,7 +199,7 @@ export default function Header({
       className="sticky top-0 z-50 border-b"
       style={{
         borderColor: "var(--line)",
-        background: "color-mix(in srgb, var(--bg) 82%, transparent)",
+        background: "color-mix(in srgb, var(--panel) 86%, transparent)",
         backdropFilter: "blur(14px)",
         WebkitBackdropFilter: "blur(14px)",
       }}
@@ -426,7 +426,7 @@ function NavPill({
       className="inline-flex items-center gap-1.5 px-3.5 py-2 rounded-full text-[15px] font-semibold transition-colors"
       style={
         active
-          ? { background: "var(--accent-soft)", color: "var(--accent)" }
+          ? { background: "transparent", color: "var(--accent)" }
           : { color: "var(--ink)" }
       }
     >
@@ -451,7 +451,7 @@ function MobileLink({
       className="px-3 py-3 rounded-2xl text-[16px] font-semibold transition-colors"
       style={{
         color: active ? "var(--accent)" : "var(--ink)",
-        background: active ? "var(--accent-soft)" : "transparent",
+        background: "transparent",
       }}
     >
       {children}
@@ -484,7 +484,7 @@ function UserMenu({ user, onLogout }: { user: User; onLogout: () => void }) {
   }, [open]);
 
   const itemCls =
-    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13.5px] transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]";
+    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13.5px] transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]";
 
   return (
     <div className="relative hidden lg:block" ref={menuRef}>
diff --git a/frontend/components/MarkdownEditor.tsx b/frontend/components/MarkdownEditor.tsx
index 4941546..140006c 100644
--- a/frontend/components/MarkdownEditor.tsx
+++ b/frontend/components/MarkdownEditor.tsx
@@ -28,7 +28,6 @@ import {
   Pencil,
   Maximize2,
   Minimize2,
-  Columns2,
   Lock,
   ChevronDown,
   Upload,
@@ -61,7 +60,7 @@ type MarkdownEditorProps = {
   allowReplyHide?: boolean;
 };
 
-type EditorMode = "split" | "write" | "preview";
+type EditorMode = "write" | "preview";
 
 type WrapOpts = {
   before: string;
@@ -126,7 +125,7 @@ export default function MarkdownEditor({
   const taRef = useRef<HTMLTextAreaElement>(null);
   const fileRef = useRef<HTMLInputElement>(null);
   const toolbarRef = useRef<HTMLDivElement>(null);
-  const [mode, setMode] = useState<EditorMode>("split");
+  const [mode, setMode] = useState<EditorMode>("write");
   const deferredValue = useDeferredValue(value);
   const [uploading, setUploading] = useState(false);
   const [fullscreen, setFullscreen] = useState(false);
@@ -940,15 +939,6 @@ export default function MarkdownEditor({
             >
               <Pencil size={12} /> 编写
             </button>
-            <button
-              type="button"
-              role="tab"
-              aria-selected={mode === "split"}
-              className={mode === "split" ? "is-on" : ""}
-              onClick={() => setMode("split")}
-            >
-              <Columns2 size={12} /> 双栏
-            </button>
             <button
               type="button"
               role="tab"
diff --git a/frontend/components/MobilePostBar.tsx b/frontend/components/MobilePostBar.tsx
index fedb720..2ff10cd 100644
--- a/frontend/components/MobilePostBar.tsx
+++ b/frontend/components/MobilePostBar.tsx
@@ -42,7 +42,7 @@ export default function MobilePostBar({
           <button
             type="button"
             onClick={scrollToComments}
-            className="w-11 h-11 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+            className="w-11 h-11 flex items-center justify-center rounded-full transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
             style={{ color: "var(--ink-2)" }}
             aria-label="跳到评论框"
           >
diff --git a/frontend/components/Modal.tsx b/frontend/components/Modal.tsx
index 9557c35..9b3bdda 100644
--- a/frontend/components/Modal.tsx
+++ b/frontend/components/Modal.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, type ReactNode } from "react";
+import { useEffect, useRef, type PointerEvent, type ReactNode } from "react";
 import { X } from "lucide-react";
 
 export type ModalProps = {
@@ -16,7 +16,11 @@ export type ModalProps = {
   maxWidthClass?: string;
   /** 面板额外 class（如 max-h / flex） */
   panelClassName?: string;
-  /** 点遮罩关闭；表单/确认默认 false 防误关 */
+  /**
+   * 点遮罩关闭。按下与抬起都必须落在遮罩上才会关：
+   * 框内拖选后在遮罩松手、或在遮罩按下后拖进弹层松手，都不会关。
+   * 确认/扣费等仍建议关此开关。
+   */
   dismissOnOverlay?: boolean;
   /** busy 时禁用关闭与 ESC */
   busy?: boolean;
@@ -28,7 +32,7 @@ export type ModalProps = {
   /** 自定义标题区（如带图标）；提供时覆盖默认 title 行，仍渲染关闭钮除非 hideClose */
   header?: ReactNode;
   hideClose?: boolean;
-  /** 是否响应 ESC；封禁告知等不可关场景设 false */
+  /** 是否响应 ESC；默认 true（按键非误触）。仅封禁告知等必须点确认的场景设 false */
   closeOnEscape?: boolean;
   /** 内容区额外 class */
   bodyClassName?: string;
@@ -36,7 +40,8 @@ export type ModalProps = {
 
 /**
  * 全站弹层壳：统一遮罩、面板、标题关闭钮与 ESC。
- * 主 CTA 请用 btn-primary；危险操作用 btn-danger；取消用 btn-line。
+ * 默认：点遮罩不关；开启 dismissOnOverlay 时须按下+抬起都在遮罩上。
+ * ESC / 关闭钮 / 页脚按钮可关。主 CTA 用 btn-primary，危险操作用 btn-danger。
  */
 export default function Modal({
   open,
@@ -57,6 +62,12 @@ export default function Modal({
   closeOnEscape = true,
   bodyClassName = "",
 }: ModalProps) {
+  const overlayPressedRef = useRef(false);
+
+  useEffect(() => {
+    overlayPressedRef.current = false;
+  }, [open]);
+
   useEffect(() => {
     if (!open || !closeOnEscape) return;
     const onKey = (e: KeyboardEvent) => {
@@ -71,13 +82,33 @@ export default function Modal({
   const label =
     ariaLabel || (typeof title === "string" ? title : undefined);
 
+  const onOverlayPointerDown = (e: PointerEvent<HTMLDivElement>) => {
+    overlayPressedRef.current =
+      e.button === 0 && e.target === e.currentTarget;
+  };
+
+  const onOverlayPointerUp = (e: PointerEvent<HTMLDivElement>) => {
+    const pressedOnOverlay = overlayPressedRef.current;
+    overlayPressedRef.current = false;
+    if (!dismissOnOverlay || busy) return;
+    if (e.button !== 0) return;
+    // 用 pointerup 的真实落点，不用 click：mousedown 在遮罩、mouseup 在面板时
+    // click 会合成到共同祖先（遮罩）上，造成拖进弹层仍关闭。
+    if (!pressedOnOverlay || e.target !== e.currentTarget) return;
+    onClose();
+  };
+
+  const onOverlayPointerCancel = () => {
+    overlayPressedRef.current = false;
+  };
+
   return (
     <div
       className={`fixed inset-0 ${zIndexClass} flex items-center justify-center p-4`}
       style={{ background: "rgba(0,0,0,0.55)" }}
-      onClick={() => {
-        if (dismissOnOverlay && !busy) onClose();
-      }}
+      onPointerDown={onOverlayPointerDown}
+      onPointerUp={onOverlayPointerUp}
+      onPointerCancel={onOverlayPointerCancel}
       role={role}
       aria-modal="true"
       aria-label={label}
@@ -136,7 +167,7 @@ function CloseButton({
       onClick={onClick}
       disabled={disabled}
       aria-label="关闭"
-      className="w-7 h-7 shrink-0 flex items-center justify-center rounded-full hover:bg-[var(--accent-soft)] transition-colors disabled:opacity-50"
+      className="w-7 h-7 shrink-0 flex items-center justify-center rounded-full hover:bg-[var(--panel-2)] transition-colors disabled:opacity-50"
       style={{ color: "var(--ink-3)" }}
     >
       <X size={15} />
diff --git a/frontend/components/NotificationBell.tsx b/frontend/components/NotificationBell.tsx
index 6081ccb..048aa5b 100644
--- a/frontend/components/NotificationBell.tsx
+++ b/frontend/components/NotificationBell.tsx
@@ -223,7 +223,7 @@ export default function NotificationBell({ initialUnread = 0 }: { initialUnread?
                 <button
                   key={n.id}
                   onClick={() => handleClickNotification(n)}
-                  className={`w-full text-left px-4 py-3.5 flex items-start gap-3 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)] ${
+                  className={`w-full text-left px-4 py-3.5 flex items-start gap-3 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)] ${
                     n.is_read ? "" : "bg-[var(--panel-2)]"
                   }`}
                   style={{
diff --git a/frontend/components/PinnedPosts.tsx b/frontend/components/PinnedPosts.tsx
index 7fb2a26..5706dfd 100644
--- a/frontend/components/PinnedPosts.tsx
+++ b/frontend/components/PinnedPosts.tsx
@@ -44,7 +44,7 @@ export default function PinnedPosts({
           <Link
             key={p.id}
             href={`/post/${p.id}`}
-            className="group relative flex items-center gap-3 sm:gap-3.5 px-4 sm:px-5 py-3.5 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)] j13-fade-up"
+            className="group relative flex items-center gap-3 sm:gap-3.5 px-4 sm:px-5 py-3.5 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)] j13-fade-up"
             style={{
               ...(i > 0 ? { borderTop: "1px solid var(--line)" } : {}),
               animationDelay: `${i * 35}ms`,
diff --git a/frontend/components/PostActions.tsx b/frontend/components/PostActions.tsx
index 62b7857..fb6012a 100644
--- a/frontend/components/PostActions.tsx
+++ b/frontend/components/PostActions.tsx
@@ -137,7 +137,7 @@ export default function PostActions({
   if (!canManage) return null;
 
   const itemCls =
-    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13px] transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]";
+    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13px] transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]";
 
   return (
     <div className="relative" ref={menuRef}>
diff --git a/frontend/components/PostComposer.tsx b/frontend/components/PostComposer.tsx
index 856945b..572a4f1 100644
--- a/frontend/components/PostComposer.tsx
+++ b/frontend/components/PostComposer.tsx
@@ -3,7 +3,7 @@
 import { useState, useEffect, useRef, useCallback } from "react";
 import Link from "next/link";
 import { useRouter } from "next/navigation";
-import { X } from "lucide-react";
+import { ArrowLeft, CircleHelp, Coins, Gift, ListChecks, MessagesSquare, SlidersHorizontal, X, type LucideIcon } from "lucide-react";
 import {
   apiCreatePost,
   apiUpdatePost,
@@ -25,19 +25,29 @@ import {
 import { toast } from "@/lib/toast";
 import MarkdownEditor from "@/components/MarkdownEditor";
 import BoardPicker, { BoardBadge } from "@/components/BoardPicker";
-import ComposeAttachments, {
-  ComposeAttachAction,
-} from "@/components/ComposeAttachments";
+import ComposeAttachments from "@/components/ComposeAttachments";
 import DeadlinePicker, {
   type DeadlineMode,
   defaultCustomLocal,
   localInputToRFC3339,
+  formatLocalPreview,
 } from "@/components/DeadlinePicker";
+import Modal from "@/components/Modal";
 import { realtime, RT_SETTINGS_CHANGED, type RtSettingsData } from "@/lib/realtime";
 
 const TITLE_MAX = 256;
 const DRAFT_KEY = "j13-compose-draft";
 const DRAFT_DEBOUNCE_MS = 600;
+/** 与 globals.css 工作台分栏断点一致 */
+const RAIL_MQ = "(max-width: 1279px)";
+
+const TYPE_ICON: Record<PostTypeValue, LucideIcon> = {
+  discussion: MessagesSquare,
+  question: CircleHelp,
+  poll: ListChecks,
+  bounty: Coins,
+  lottery: Gift,
+};
 
 type ComposeDraft = {
   title: string;
@@ -273,13 +283,39 @@ export default function PostComposer(props: PostComposerProps) {
   const draftTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
   const skipDraftSave = useRef(true);
   const formRef = useRef<HTMLFormElement>(null);
+  const titleRef = useRef<HTMLInputElement>(null);
   const attachSectionRef = useRef<HTMLElement | null>(null);
   const actionsErrorRef = useRef<HTMLDivElement>(null);
   const bountyFieldRef = useRef<HTMLDivElement>(null);
   const pendingErrorFocus = useRef<"actions" | "bounty" | "attachments" | null>(null);
+  const [railOpen, setRailOpen] = useState(false);
+  const [typeModalOpen, setTypeModalOpen] = useState(false);
+  const [isNarrow, setIsNarrow] = useState(false);
 
   const preferredBoardId = isCreate ? props.initialBoardId || 0 : 0;
 
+  useEffect(() => {
+    const mq = window.matchMedia(RAIL_MQ);
+    const sync = () => setIsNarrow(mq.matches);
+    sync();
+    mq.addEventListener("change", sync);
+    return () => mq.removeEventListener("change", sync);
+  }, []);
+
+  useEffect(() => {
+    if (!railOpen) return;
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === "Escape") setRailOpen(false);
+    };
+    window.addEventListener("keydown", onKey);
+    return () => window.removeEventListener("keydown", onKey);
+  }, [railOpen]);
+
+  useEffect(() => {
+    if (!isCreate) return;
+    titleRef.current?.focus();
+  }, [isCreate]);
+
   useEffect(() => {
     let cancelled = false;
     apiGetSettings()
@@ -335,9 +371,11 @@ export default function PostComposer(props: PostComposerProps) {
         const hit = preferred && list.some((b) => b.id === preferred);
         if (hit) {
           setBoardId(preferred);
-        } else if (list.length > 0) {
+        } else if (list.length === 1) {
+          setBoardId(list[0].id);
+        } else {
           setBoardId((cur) =>
-            cur && list.some((b) => b.id === cur) ? cur : list[0].id
+            cur && list.some((b) => b.id === cur) ? cur : 0
           );
         }
         const draft = readDraft();
@@ -507,27 +545,33 @@ export default function PostComposer(props: PostComposerProps) {
   };
 
   const scrollToAttachments = () => {
-    const el =
-      attachSectionRef.current ||
-      document.getElementById("j13-compose-attachments");
-    el?.scrollIntoView({ behavior: "smooth", block: "center" });
+    if (isNarrow) setRailOpen(true);
     window.setTimeout(() => {
-      const drop = el?.querySelector(".j13-compose-drop") as HTMLElement | null;
-      drop?.focus();
-    }, 320);
+      const el =
+        attachSectionRef.current ||
+        document.getElementById("j13-compose-attachments");
+      el?.scrollIntoView({ behavior: "smooth", block: "center" });
+      window.setTimeout(() => {
+        const drop = el?.querySelector(".j13-compose-drop") as HTMLElement | null;
+        drop?.focus();
+      }, 320);
+    }, isNarrow ? 80 : 0);
   };
 
   const scrollToPendingUpload = () => {
-    const el =
-      attachSectionRef.current ||
-      document.getElementById("j13-compose-attachments");
-    el?.scrollIntoView({ behavior: "smooth", block: "center" });
+    if (isNarrow) setRailOpen(true);
     window.setTimeout(() => {
-      const btn = el?.querySelector(
-        ".j13-compose-att-upload-btn"
-      ) as HTMLButtonElement | null;
-      btn?.focus();
-    }, 320);
+      const el =
+        attachSectionRef.current ||
+        document.getElementById("j13-compose-attachments");
+      el?.scrollIntoView({ behavior: "smooth", block: "center" });
+      window.setTimeout(() => {
+        const btn = el?.querySelector(
+          ".j13-compose-att-upload-btn"
+        ) as HTMLButtonElement | null;
+        btn?.focus();
+      }, 320);
+    }, isNarrow ? 80 : 0);
   };
 
   const bountyShort =
@@ -567,12 +611,15 @@ export default function PostComposer(props: PostComposerProps) {
       scrollToPendingUpload();
       return;
     }
-    const el =
-      focus === "bounty" && bountyFieldRef.current
-        ? bountyFieldRef.current
-        : actionsErrorRef.current;
-    el?.scrollIntoView({ behavior: "smooth", block: "nearest" });
-  }, [error]);
+    if (focus === "bounty") setTypeModalOpen(true);
+    window.setTimeout(() => {
+      const el =
+        focus === "bounty" && bountyFieldRef.current
+          ? bountyFieldRef.current
+          : actionsErrorRef.current;
+      el?.scrollIntoView({ behavior: "smooth", block: "nearest" });
+    }, focus === "bounty" ? 80 : 0);
+  }, [error, isNarrow]);
 
   // 待传清零后收起「尚未上传」提示（已上传或已移除）
   useEffect(() => {
@@ -582,6 +629,7 @@ export default function PostComposer(props: PostComposerProps) {
 
   const handleSubmit = async (e?: React.FormEvent) => {
     e?.preventDefault();
+    if (loading || fileBusy) return;
     if (pendingFileCount > 0) {
       reportSubmitError(
         `还有 ${pendingFileCount} 个附件尚未上传，请先上传或移除`,
@@ -596,16 +644,19 @@ export default function PostComposer(props: PostComposerProps) {
     ) {
       const iso = localInputToRFC3339(customEndsLocal);
       if (!iso) {
+        setTypeModalOpen(true);
         reportSubmitError("请选择有效的截止时间");
         return;
       }
       const t = Date.parse(iso);
       if (!Number.isFinite(t) || t < Date.now() + 60 * 60 * 1000) {
+        setTypeModalOpen(true);
         reportSubmitError("截止时间至少晚于当前 1 小时");
         return;
       }
     }
     if (postType === "lottery" && !lotteryPrizesReady) {
+      setTypeModalOpen(true);
       reportSubmitError("请填写奖品名称与数量后再发布");
       return;
     }
@@ -614,16 +665,41 @@ export default function PostComposer(props: PostComposerProps) {
       postType === "bounty" &&
       (typeof bountyPoints !== "number" || bountyPoints < 1)
     ) {
+      setTypeModalOpen(true);
       reportSubmitError("请填写悬赏积分后再发布", "bounty");
       return;
     }
     if (bountyShort) {
+      setTypeModalOpen(true);
       reportSubmitError(
         `积分不足（余额 ${pointsBalance}，需要 ${bountyPoints}）`,
         "bounty"
       );
       return;
     }
+    if (!title.trim()) {
+      reportSubmitError("请填写标题");
+      titleRef.current?.focus();
+      return;
+    }
+    if (!content.trim()) {
+      reportSubmitError("请填写正文");
+      document.getElementById("compose-content")?.focus();
+      return;
+    }
+    if (isCreate && (!boardsReady || boardId <= 0)) {
+      if (isNarrow) setRailOpen(true);
+      reportSubmitError("请选择板块");
+      return;
+    }
+    if (
+      postType === "poll" &&
+      pollOptions.map((o) => o.trim()).filter(Boolean).length < 2
+    ) {
+      setTypeModalOpen(true);
+      reportSubmitError("请至少填写 2 个投票选项");
+      return;
+    }
     if (!canSubmit) return;
     setLoading(true);
     setError("");
@@ -683,531 +759,753 @@ export default function PostComposer(props: PostComposerProps) {
     ? isCreate
       ? "发布中…"
       : "保存中…"
-    : isCreate
-      ? "发布"
-      : "保存";
-  const cancelControl = isCreate ? (
-    <Link href={cancelHref} className="btn btn-line btn-sm">
-      取消
-    </Link>
-  ) : (
-    <button
-      type="button"
-      onClick={() => router.push(cancelHref)}
-      className="btn btn-line btn-sm"
+    : fileBusy
+      ? "上传中…"
+      : isCreate
+        ? "发布"
+        : "保存";
+  const selectedBoardName = isCreate
+    ? boards.find((b) => b.id === boardId)?.name
+    : props.boardName;
+  const typeLabel = POST_TYPES.find((t) => t.value === postType)?.label || "讨论";
+  const blockReason = loading
+    ? ""
+    : fileBusy
+      ? "附件上传中"
+      : !title.trim()
+        ? "请填写标题"
+        : !content.trim()
+          ? "请填写正文"
+          : isCreate && (!boardsReady || boardId <= 0)
+            ? "请选择板块"
+            : postType === "poll" &&
+                pollOptions.map((o) => o.trim()).filter(Boolean).length < 2
+              ? "请至少填写 2 个投票选项"
+              : postType === "bounty" &&
+                  (typeof bountyPoints !== "number" || bountyPoints < 1)
+                ? "请填写悬赏积分"
+                : bountyShort
+                  ? "积分不足"
+                  : postType === "lottery" && !lotteryPrizesReady
+                    ? "请填写奖品名称与数量"
+                    : "";
+  const railHidden = isNarrow && !railOpen;
+  const typeSetupKind =
+    postType === "poll" || postType === "bounty" || postType === "lottery";
+  const pollFilled = pollOptions.map((o) => o.trim()).filter(Boolean).length;
+  const typeSetupReady =
+    postType === "poll"
+      ? pollFilled >= 2
+      : postType === "bounty"
+        ? typeof bountyPoints === "number" && bountyPoints > 0 && !bountyShort
+        : postType === "lottery"
+          ? lotteryPrizesReady
+          : true;
+  const deadlineSummary = (() => {
+    if (!isCreate || !typeSetupKind) return "";
+    if (deadlineMode === "custom") {
+      const preview = formatLocalPreview(customEndsLocal);
+      return preview ? `截止 ${preview}` : "未选截止时间";
+    }
+    const days =
+      postType === "poll"
+        ? pollExpireDays
+        : postType === "bounty"
+          ? bountyExpireDays
+          : lotteryExpireDays;
+    return postType === "lottery" ? `${days} 天后开奖` : `${days} 天后结束`;
+  })();
+  const typeSummary = (() => {
+    if (postType === "poll") {
+      const bits = [
+        pollFilled >= 2 ? `${pollFilled} 个选项` : "还差选项",
+        pollMulti ? "多选" : "单选",
+        pollAnonymous ? "匿名" : "实名",
+      ];
+      if (deadlineSummary) bits.push(deadlineSummary);
+      return bits.join(" · ");
+    }
+    if (postType === "bounty") {
+      const bits = [
+        typeof bountyPoints === "number"
+          ? `托管 ${bountyPoints.toLocaleString("zh-CN")} 积分`
+          : "未填积分",
+      ];
+      if (bountyShort) bits.push("余额不足");
+      if (deadlineSummary) bits.push(deadlineSummary);
+      return bits.join(" · ");
+    }
+    if (postType === "lottery") {
+      const bits = [
+        lotteryPrizesReady
+          ? `${lotteryPrizes.length} 种奖品 · ${lotterySlotTotal} 名额`
+          : "奖品未填完",
+      ];
+      if (deadlineSummary) bits.push(deadlineSummary);
+      return bits.join(" · ");
+    }
+    return "";
+  })();
+  const typeChipStatus = (() => {
+    if (postType === "poll") {
+      if (pollFilled < 2) return { text: "待设选项", warn: true };
+      const bits = [`${pollFilled} 选项`];
+      if (pollMulti) bits.push("多选");
+      if (isCreate) {
+        bits.push(
+          deadlineMode === "custom" ? "自选截止" : `${pollExpireDays} 天`
+        );
+      }
+      return { text: bits.join(" · "), warn: false };
+    }
+    if (postType === "bounty") {
+      if (bountyShort) return { text: "余额不足", warn: true };
+      if (typeof bountyPoints !== "number") return { text: "待填积分", warn: true };
+      const bits = [`${bountyPoints.toLocaleString("zh-CN")} 积分`];
+      if (isCreate) {
+        bits.push(
+          deadlineMode === "custom" ? "自选截止" : `${bountyExpireDays} 天`
+        );
+      }
+      return { text: bits.join(" · "), warn: false };
+    }
+    if (postType === "lottery") {
+      if (!lotteryPrizesReady) return { text: "待填奖品", warn: true };
+      const bits = [`${lotteryPrizes.length} 奖 · ${lotterySlotTotal} 名额`];
+      if (isCreate) {
+        bits.push(
+          deadlineMode === "custom" ? "自选截止" : `${lotteryExpireDays} 天`
+        );
+      }
+      return { text: bits.join(" · "), warn: false };
+    }
+    return null;
+  })();
+  const closeTypeModal = useCallback(() => setTypeModalOpen(false), []);
+  const completeTypeModal = () => {
+    if (postType === "poll" && pollFilled < 2) {
+      toast("请至少填写 2 个投票选项", "error");
+      return;
+    }
+    if (
+      postType === "bounty" &&
+      isCreate &&
+      (typeof bountyPoints !== "number" || bountyPoints < 1)
+    ) {
+      toast("请填写悬赏积分", "error");
+      return;
+    }
+    if (postType === "bounty" && bountyShort) {
+      toast(`积分不足（余额 ${pointsBalance}，需要 ${bountyPoints}）`, "error");
+      return;
+    }
+    if (postType === "lottery" && !lotteryPrizesReady) {
+      toast("请填写每一行的奖品名称与数量", "error");
+      return;
+    }
+    setTypeModalOpen(false);
+  };
+  const onPickType = (value: PostTypeValue) => {
+    setPostType(value);
+    if (value !== "poll" && value !== "bounty" && value !== "lottery") {
+      setTypeModalOpen(false);
+    }
+  };
+
+  const cancelControl = (
+    <Link
+      href={cancelHref}
+      className="j13-compose-back"
+      aria-label="返回"
+      data-tip="返回"
     >
-      取消
-    </button>
+      <ArrowLeft size={18} strokeWidth={2.2} />
+    </Link>
+  );
+
+  const typeSettingsForm = (
+    <>
+{postType === "poll" && (
+            <div className="j13-compose-typepanel space-y-3">
+              <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
+                投票选项
+              </p>
+              {!canEditPoll && (
+                <p className="meta text-[12.5px]">已有人投票，无法修改选项、单/多选或匿名设置</p>
+              )}
+              {pollOptions.map((opt, i) => (
+                <div key={i} className="flex items-center gap-2">
+                  <input
+                    className="j13-compose-field flex-1"
+                    value={opt}
+                    maxLength={64}
+                    placeholder={`选项 ${i + 1}`}
+                    disabled={loading || !canEditPoll}
+                    onChange={(e) => {
+                      const next = [...pollOptions];
+                      next[i] = e.target.value;
+                      setPollOptions(next);
+                    }}
+                  />
+                  {pollOptions.length > 2 && canEditPoll && (
+                    <button
+                      type="button"
+                      className="btn btn-line btn-sm !px-2"
+                      onClick={() => setPollOptions((p) => p.filter((_, j) => j !== i))}
+                    >
+                      <X size={14} />
+                    </button>
+                  )}
+                </div>
+              ))}
+              <div className="flex flex-wrap items-center gap-3">
+                {pollOptions.length < 10 && canEditPoll && (
+                  <button
+                    type="button"
+                    className="btn btn-line btn-sm"
+                    onClick={() => setPollOptions((p) => [...p, ""])}
+                  >
+                    添加选项
+                  </button>
+                )}
+                <label className="meta text-[13px] inline-flex items-center gap-2 cursor-pointer">
+                  <input
+                    type="checkbox"
+                    checked={pollMulti}
+                    disabled={loading || !canEditPoll}
+                    onChange={(e) => setPollMulti(e.target.checked)}
+                  />
+                  允许多选
+                </label>
+                <label className="meta text-[13px] inline-flex items-center gap-2 cursor-pointer">
+                  <input
+                    type="checkbox"
+                    checked={pollAnonymous}
+                    disabled={loading || !canEditPoll}
+                    onChange={(e) => setPollAnonymous(e.target.checked)}
+                  />
+                  匿名投票
+                </label>
+              </div>
+              {!pollAnonymous && (
+                <p className="meta text-[12px]">非匿名：投票结果公开后可看到每位投票人</p>
+              )}
+              {isCreate && (
+                <DeadlinePicker
+                  presets={POLL_EXPIRE_DAYS}
+                  mode={deadlineMode}
+                  onModeChange={setDeadlineMode}
+                  days={pollExpireDays}
+                  onDaysChange={setPollExpireDays}
+                  customLocal={customEndsLocal}
+                  onCustomLocalChange={setCustomEndsLocal}
+                  disabled={loading}
+                  hint="到期后自动结束投票；也可由作者提前结束"
+                />
+              )}
+            </div>
+          )}
+          {postType === "bounty" && (
+            <div className="j13-compose-typepanel space-y-3">
+              <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
+                悬赏积分
+              </p>
+              <p className="meta text-[12.5px]">
+                发布时从余额托管；到期未采纳自动退回。截止后仍可采纳，将从余额扣款支付且不可撤回。
+              </p>
+              <div ref={bountyFieldRef} className="j13-lottery-prize-table-wrap">
+                <table className="j13-lottery-prize-table">
+                  <thead>
+                    <tr>
+                      <th scope="col">悬赏积分</th>
+                      <th scope="col" className="col-count">
+                        余额
+                      </th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    <tr>
+                      <td>
+                        <input
+                          type="number"
+                          min={1}
+                          max={100000}
+                          value={bountyPoints}
+                          placeholder="如：20"
+                          disabled={loading || !isCreate}
+                          aria-invalid={bountyShort || undefined}
+                          aria-label="悬赏积分"
+                          required={postType === "bounty"}
+                          onChange={(e) => {
+                            const raw = e.target.value;
+                            if (error.includes("积分")) setError("");
+                            if (raw === "") {
+                              setBountyPoints("");
+                              return;
+                            }
+                            const n = Math.max(
+                              1,
+                              Math.min(100000, Number(raw) || 1)
+                            );
+                            setBountyPoints(n);
+                          }}
+                          className={`j13-compose-field${bountyShort ? " j13-compose-field-invalid" : ""}`}
+                        />
+                      </td>
+                      <td className="col-count">
+                        {isCreate ? (
+                          <span
+                            className="meta text-[13px] tabular-nums"
+                            style={
+                              bountyShort
+                                ? { color: "var(--danger)", fontWeight: 600 }
+                                : undefined
+                            }
+                          >
+                            {pointsBalance === null
+                              ? "—"
+                              : pointsBalance.toLocaleString("zh-CN")}
+                          </span>
+                        ) : (
+                          <span className="meta text-[12px]">已托管</span>
+                        )}
+                      </td>
+                    </tr>
+                  </tbody>
+                </table>
+              </div>
+              <div className="flex flex-wrap items-center justify-between gap-x-3 gap-y-1">
+                {bountyShort ? (
+                  <p
+                    className="meta text-[12.5px] m-0"
+                    style={{ color: "var(--danger)" }}
+                    role="status"
+                  >
+                    积分不足，请下调悬赏金额后再发布
+                  </p>
+                ) : isCreate && typeof bountyPoints !== "number" ? (
+                  <p
+                    className="meta text-[12.5px] m-0"
+                    style={{ color: "var(--danger)" }}
+                  >
+                    请填写悬赏积分，否则无法发布
+                  </p>
+                ) : !isCreate ? (
+                  <p className="meta text-[12.5px] m-0">编辑不可更改已托管金额</p>
+                ) : (
+                  <span />
+                )}
+                <span
+                  className="meta text-[12.5px] tabular-nums ml-auto"
+                  style={
+                    bountyShort
+                      ? { color: "var(--danger)", fontWeight: 600 }
+                      : undefined
+                  }
+                >
+                  {typeof bountyPoints === "number"
+                    ? `托管 ${bountyPoints.toLocaleString("zh-CN")} 积分`
+                    : "托管 —"}
+                  {isCreate && pointsBalance !== null
+                    ? ` · 余额 ${pointsBalance.toLocaleString("zh-CN")}`
+                    : ""}
+                </span>
+              </div>
+              {isCreate && (
+                <DeadlinePicker
+                  presets={BOUNTY_EXPIRE_DAYS}
+                  mode={deadlineMode}
+                  onModeChange={setDeadlineMode}
+                  days={bountyExpireDays}
+                  onDaysChange={setBountyExpireDays}
+                  customLocal={customEndsLocal}
+                  onCustomLocalChange={setCustomEndsLocal}
+                  disabled={loading}
+                />
+              )}
+            </div>
+          )}
+          {postType === "lottery" && (
+            <div className="j13-compose-typepanel space-y-3">
+              <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
+                抽奖设置
+              </p>
+              <p className="meta text-[12.5px]">
+                填写奖品名称与数量，中奖名额自动合计。有评论后不可再改奖品。
+              </p>
+              {!canEditLotteryPrizes && (
+                <p className="meta text-[12.5px]" style={{ color: "var(--gold)" }}>
+                  已有评论，奖品设置已锁定
+                </p>
+              )}
+              <div className="j13-lottery-prize-table-wrap">
+                <table className="j13-lottery-prize-table">
+                  <thead>
+                    <tr>
+                      <th scope="col" className="col-idx">
+                        #
+                      </th>
+                      <th scope="col">奖品名称</th>
+                      <th scope="col" className="col-count">
+                        数量
+                      </th>
+                      {canEditLotteryPrizes && (
+                        <th scope="col" className="col-actions">
+                          操作
+                        </th>
+                      )}
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {lotteryPrizes.map((p, idx) => (
+                      <tr key={idx}>
+                        <td className="col-idx">{idx + 1}</td>
+                        <td>
+                          <input
+                            type="text"
+                            value={p.name}
+                            maxLength={32}
+                            placeholder="如：一等奖 / 周边礼包"
+                            disabled={loading || !canEditLotteryPrizes}
+                            onChange={(e) => {
+                              const v = e.target.value.slice(0, 32);
+                              setLotteryPrizes((prev) =>
+                                prev.map((row, i) => (i === idx ? { ...row, name: v } : row))
+                              );
+                            }}
+                            className="j13-compose-field"
+                            aria-label={`奖品 ${idx + 1} 名称`}
+                            required={postType === "lottery"}
+                          />
+                        </td>
+                        <td className="col-count">
+                          <input
+                            type="number"
+                            min={1}
+                            max={100}
+                            value={p.count}
+                            placeholder="数量"
+                            disabled={loading || !canEditLotteryPrizes}
+                            onChange={(e) => {
+                              const raw = e.target.value;
+                              if (raw === "") {
+                                setLotteryPrizes((prev) =>
+                                  prev.map((row, i) => (i === idx ? { ...row, count: "" } : row))
+                                );
+                                return;
+                              }
+                              const n = Math.max(1, Math.min(100, Number(raw) || 1));
+                              setLotteryPrizes((prev) =>
+                                prev.map((row, i) => (i === idx ? { ...row, count: n } : row))
+                              );
+                            }}
+                            className="j13-compose-field j13-compose-field-count"
+                            aria-label={`奖品 ${idx + 1} 数量`}
+                            required={postType === "lottery"}
+                          />
+                        </td>
+                        {canEditLotteryPrizes && (
+                          <td className="col-actions">
+                            <span
+                              data-tip={
+                                lotteryPrizes.length <= 1 ? "至少保留一项" : "删除此奖品"
+                              }
+                            >
+                              <button
+                                type="button"
+                                className="btn btn-line btn-sm"
+                                disabled={loading || lotteryPrizes.length <= 1}
+                                aria-label={
+                                  lotteryPrizes.length <= 1
+                                    ? "删除（至少保留一项）"
+                                    : `删除奖品 ${idx + 1}`
+                                }
+                                onClick={() => {
+                                  if (lotteryPrizes.length <= 1) return;
+                                  setLotteryPrizes((prev) =>
+                                    prev.filter((_, i) => i !== idx)
+                                  );
+                                }}
+                              >
+                                删除
+                              </button>
+                            </span>
+                          </td>
+                        )}
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+              <div className="flex flex-wrap items-center justify-between gap-2">
+                {canEditLotteryPrizes && lotteryPrizes.length < 10 ? (
+                  <button
+                    type="button"
+                    className="btn btn-line btn-sm"
+                    disabled={loading}
+                    onClick={() =>
+                      setLotteryPrizes((prev) => [...prev, { name: "", count: "" }])
+                    }
+                  >
+                    添加一行
+                  </button>
+                ) : (
+                  <span />
+                )}
+                <span className="meta text-[12.5px] tabular-nums">
+                  合计名额 {lotteryPrizesReady ? lotterySlotTotal : "—"}
+                </span>
+              </div>
+              {canEditLotteryPrizes && !lotteryPrizesReady && (
+                <p className="meta text-[12.5px]" style={{ color: "var(--danger)" }}>
+                  请填写每一行的奖品名称与数量，否则无法发布
+                </p>
+              )}
+              {isCreate && (
+                <DeadlinePicker
+                  presets={LOTTERY_EXPIRE_DAYS}
+                  mode={deadlineMode}
+                  onModeChange={setDeadlineMode}
+                  days={lotteryExpireDays}
+                  onDaysChange={setLotteryExpireDays}
+                  customLocal={customEndsLocal}
+                  onCustomLocalChange={setCustomEndsLocal}
+                  disabled={loading}
+                  hint="到期后自动开奖"
+                />
+              )}
+            </div>
+          )}
+    </>
+  );
+
+  const railInner = (
+    <>
+      <section className="j13-compose-rail-block" aria-label="板块">
+        <label className="j13-compose-section-title" htmlFor="compose-board">
+          板块
+          {isCreate ? <span className="j13-compose-req">必选</span> : null}
+        </label>
+        {isCreate ? (
+          <BoardPicker
+            id="compose-board"
+            boards={boards}
+            value={boardId}
+            onChange={setBoardId}
+            disabled={loading}
+            loading={!boardsReady}
+          />
+        ) : (
+          <BoardBadge
+            name={props.boardName || "未知板块"}
+            colorIndex={props.boardColorIndex ?? 0}
+          />
+        )}
+      </section>
+
+      <section className="j13-compose-rail-block" aria-label="基本信息">
+        <h2 className="j13-compose-section-title">帖子类型</h2>
+        <div className="j13-compose-typebar" role="radiogroup" aria-label="帖子类型">
+          {POST_TYPES.map((t) => {
+            const Icon = TYPE_ICON[t.value];
+            const isOn = postType === t.value;
+            const locked = loading || (!isCreate && t.value !== postType);
+            const status = isOn ? typeChipStatus : null;
+            const needsSetup =
+              t.value === "poll" || t.value === "bounty" || t.value === "lottery";
+            return (
+              <div
+                key={t.value}
+                className={`j13-compose-typeopt${isOn ? " is-on" : ""}${
+                  status?.warn ? " is-warn" : ""
+                }`}
+              >
+                <button
+                  type="button"
+                  role="radio"
+                  aria-checked={isOn}
+                  className="j13-compose-typeopt-hit"
+                  disabled={locked}
+                  data-tip={
+                    !isCreate && t.value !== postType ? "编辑时不可更改类型" : undefined
+                  }
+                  onClick={() => onPickType(t.value)}
+                >
+                  <span className="j13-compose-typeopt-ico" aria-hidden>
+                    <Icon size={16} strokeWidth={2.2} />
+                  </span>
+                  <span className="j13-compose-typeopt-copy">
+                    <span className="j13-compose-typeopt-label">{t.label}</span>
+                    <span
+                      className={`j13-compose-typeopt-hint${
+                        status ? (status.warn ? " is-warn" : " is-status") : ""
+                      }`}
+                    >
+                      {status ? status.text : t.hint}
+                    </span>
+                  </span>
+                </button>
+                {isOn && needsSetup ? (
+                  <button
+                    type="button"
+                    className={`j13-compose-typeopt-setup${status?.warn ? " is-warn" : ""}`}
+                    onClick={() => setTypeModalOpen(true)}
+                  >
+                    {status?.warn ? "去设置" : "设置"}
+                  </button>
+                ) : null}
+              </div>
+            );
+          })}
+        </div>
+      </section>
+
+      <section className="j13-compose-rail-block" aria-label="标签">
+        <label className="field-label" htmlFor="compose-tag-input">
+          标签
+          <span className="font-normal" style={{ color: "var(--ink-3)" }}>
+            {" "}
+            · 可选，最多 12 个
+          </span>
+        </label>
+        <div
+          className="j13-tag-field"
+          onClick={() => document.getElementById("compose-tag-input")?.focus()}
+        >
+          {tagList.map((t) => (
+            <span key={t} className="chip inline-flex items-center gap-1 !py-0.5">
+              # {t}
+              <button
+                type="button"
+                data-tip={`移除 ${t}`}
+                aria-label={`移除标签 ${t}`}
+                className="opacity-60 hover:opacity-100"
+                onClick={(e) => {
+                  e.stopPropagation();
+                  removeTag(t);
+                }}
+              >
+                <X size={12} />
+              </button>
+            </span>
+          ))}
+          <input
+            id="compose-tag-input"
+            value={tagInput}
+            disabled={loading || tagList.length >= 12}
+            onChange={(e) => setTagInput(e.target.value)}
+            onKeyDown={(e) => {
+              if (e.key === "Enter" || e.key === "," || e.key === "，") {
+                e.preventDefault();
+                commitTagInput();
+              } else if (e.key === "Backspace" && !tagInput && tagList.length > 0) {
+                removeTag(tagList[tagList.length - 1]);
+              }
+            }}
+            onBlur={commitTagInput}
+            placeholder={tagList.length === 0 ? "输入后回车添加" : ""}
+            className="j13-tag-field-input flex-1 min-w-[8rem] self-stretch h-8 text-[13px]"
+            style={{ color: "var(--ink)" }}
+          />
+        </div>
+      </section>
+
+      <ComposeAttachments
+        attachments={attachments}
+        onChange={setAttachments}
+        limits={attachLimits}
+        disabled={loading}
+        onBusyChange={setFileBusy}
+        onPendingChange={setPendingFileCount}
+        sectionRef={attachSectionRef}
+      />
+    </>
   );
 
   return (
-    <form ref={formRef} onSubmit={handleSubmit} className="j13-compose-stage">
+    <form ref={formRef} onSubmit={handleSubmit} className="j13-compose-stage is-studio">
       <header className="j13-compose-toolbar">
-        <h1 className="j13-compose-toolbar-title">
-          {isCreate ? "写新帖" : "编辑帖子"}
-        </h1>
-        <div className="j13-compose-toolbar-actions">
+        <div className="j13-compose-toolbar-lead">
           {cancelControl}
+          <div className="j13-compose-toolbar-copy min-w-0">
+            <h1 className="j13-compose-toolbar-title">
+              {isCreate ? "写新帖" : "编辑帖子"}
+            </h1>
+            <p className="j13-compose-toolbar-sub">
+              {selectedBoardName || (isCreate && !boardsReady ? "加载板块…" : "选择板块")}
+              {" · "}
+              {typeLabel}
+            </p>
+          </div>
+        </div>
+        <div className="j13-compose-toolbar-actions">
+          {blockReason ? (
+            <span className="j13-compose-toolbar-hint">{blockReason}</span>
+          ) : (
+            <span className="j13-compose-toolbar-hint">
+              {isCreate ? "Ctrl/⌘+Enter 发布" : "Ctrl/⌘+Enter 保存"}
+            </span>
+          )}
+          <button
+            type="button"
+            className="btn btn-line btn-sm j13-compose-rail-toggle"
+            onClick={() => setRailOpen(true)}
+            aria-expanded={railOpen}
+            aria-controls="j13-compose-rail"
+          >
+            <SlidersHorizontal size={14} />
+            发布设置
+            {attachments.length > 0 ? (
+              <span className="j13-compose-rail-toggle-count">{attachments.length}</span>
+            ) : null}
+          </button>
           <button
             type="submit"
             disabled={!canSubmit}
-            className="btn btn-primary btn-sm min-w-[4.5rem]"
+            className="btn btn-primary btn-sm min-w-[4.75rem]"
           >
             {submitLabel}
           </button>
         </div>
       </header>
 
-      <div className="j13-compose-body">
-        {draftBanner && (
-          <div
-            className="flex flex-wrap items-center justify-between gap-3 px-4 py-3 rounded-[12px] text-[13px] shrink-0"
-            style={{
-              background: "var(--accent-soft)",
-              color: "var(--ink)",
-              border:
-                "1px solid color-mix(in srgb, var(--accent) 18%, transparent)",
-            }}
-          >
-            <span>
-              检测到未发布的本地草稿
-              {draftBanner.updatedAt
-                ? `（${new Date(draftBanner.updatedAt).toLocaleString("zh-CN")}）`
-                : ""}
-            </span>
-            <span className="flex gap-2">
-              <button type="button" className="btn btn-primary btn-sm" onClick={restoreDraft}>
-                恢复
-              </button>
-              <button type="button" className="btn btn-line btn-sm" onClick={discardDraft}>
-                丢弃
-              </button>
-            </span>
-          </div>
-        )}
+      {draftBanner && (
+        <div className="j13-compose-draft" role="status">
+          <span>
+            检测到未发布的本地草稿
+            {draftBanner.updatedAt
+              ? `（${new Date(draftBanner.updatedAt).toLocaleString("zh-CN")}）`
+              : ""}
+          </span>
+          <span className="flex gap-2 shrink-0">
+            <button type="button" className="btn btn-primary btn-sm" onClick={restoreDraft}>
+              恢复
+            </button>
+            <button type="button" className="btn btn-line btn-sm" onClick={discardDraft}>
+              丢弃
+            </button>
+          </span>
+        </div>
+      )}
 
-        {/* 基本信息：类型 / 板块 / 标签 / 可见性 */}
-        <section className="j13-compose-section" aria-label="基本信息">
-          <h2 className="j13-compose-section-title">基本信息</h2>
+      {error ? (
+        <div
+          ref={actionsErrorRef}
+          className="alert-error j13-compose-banner-error"
+          role="alert"
+        >
+          {error}
+        </div>
+      ) : null}
 
-          {/* 帖子类型 */}
-          <div className="shrink-0">
-            <div className="field-label mb-2">帖子类型</div>
-            <div className="j13-compose-typebar" role="radiogroup" aria-label="帖子类型">
-              {POST_TYPES.map((t) => (
-                <button
-                  key={t.value}
-                  type="button"
-                  role="radio"
-                  aria-checked={postType === t.value}
-                  className={`j13-compose-typechip${postType === t.value ? " is-on" : ""}`}
-                  disabled={loading || (!isCreate && t.value !== postType)}
-                  data-tip={!isCreate && t.value !== postType ? "编辑时不可更改类型" : t.hint}
-                  onClick={() => setPostType(t.value)}
-                >
-                  {t.label}
-                </button>
-              ))}
-            </div>
-          </div>
-
-            {/* 元信息：板块 + 标签（标签 flex 占满） + 可见性 */}
-            <div className="j13-compose-meta shrink-0">
-              <div className="j13-compose-meta-board">
-                <label className="field-label" htmlFor="compose-board">
-                  板块
-                </label>
-                {isCreate ? (
-                  <BoardPicker
-                    id="compose-board"
-                    boards={boards}
-                    value={boardId}
-                    onChange={setBoardId}
-                    disabled={loading}
-                    loading={!boardsReady}
-                  />
-                ) : (
-                  <BoardBadge
-                    name={props.boardName || "未知板块"}
-                    colorIndex={props.boardColorIndex ?? 0}
-                  />
-                )}
-              </div>
-
-              <div className="j13-compose-meta-tags">
-                <label className="field-label" htmlFor="compose-tag-input">
-                  标签
-                  <span className="font-normal" style={{ color: "var(--ink-3)" }}>
-                    {" "}
-                    · 可选，最多 12 个
-                  </span>
-                </label>
-                <div
-                  className="j13-tag-field"
-                  onClick={() => document.getElementById("compose-tag-input")?.focus()}
-                >
-                  {tagList.map((t) => (
-                    <span key={t} className="chip inline-flex items-center gap-1 !py-0.5">
-                      # {t}
-                      <button
-                        type="button"
-                        data-tip={`移除 ${t}`}
-                        aria-label={`移除标签 ${t}`}
-                        className="opacity-60 hover:opacity-100"
-                        onClick={(e) => {
-                          e.stopPropagation();
-                          removeTag(t);
-                        }}
-                      >
-                        <X size={12} />
-                      </button>
-                    </span>
-                  ))}
-                  <input
-                    id="compose-tag-input"
-                    value={tagInput}
-                    disabled={loading || tagList.length >= 12}
-                    onChange={(e) => setTagInput(e.target.value)}
-                    onKeyDown={(e) => {
-                      if (e.key === "Enter" || e.key === "," || e.key === "，") {
-                        e.preventDefault();
-                        commitTagInput();
-                      } else if (e.key === "Backspace" && !tagInput && tagList.length > 0) {
-                        removeTag(tagList[tagList.length - 1]);
-                      }
-                    }}
-                    onBlur={commitTagInput}
-                    placeholder={tagList.length === 0 ? "输入后回车添加" : ""}
-                    className="j13-tag-field-input flex-1 min-w-[8rem] self-stretch h-8 text-[13px]"
-                    style={{ color: "var(--ink)" }}
-                  />
-                </div>
-              </div>
-            </div>
-
-        </section>
-
-        {/* 类型扩展（投票 / 悬赏 / 抽奖） */}
-        {(postType === "poll" || postType === "bounty" || postType === "lottery") && (
-          <section className="j13-compose-section" aria-label="类型设置">
-            <h2 className="j13-compose-section-title">类型设置</h2>
-            {postType === "poll" && (
-              <div className="j13-compose-typepanel shrink-0 space-y-3">
-                <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
-                  投票选项
-                </p>
-                          {!canEditPoll && (
-                            <p className="meta text-[12.5px]">已有人投票，无法修改选项、单/多选或匿名设置</p>
-                          )}
-                          {pollOptions.map((opt, i) => (
-                            <div key={i} className="flex items-center gap-2">
-                              <input
-                                className="j13-compose-field flex-1"
-                                value={opt}
-                                maxLength={64}
-                                placeholder={`选项 ${i + 1}`}
-                                disabled={loading || !canEditPoll}
-                                onChange={(e) => {
-                                  const next = [...pollOptions];
-                                  next[i] = e.target.value;
-                                  setPollOptions(next);
-                                }}
-                              />
-                              {pollOptions.length > 2 && canEditPoll && (
-                                <button
-                                  type="button"
-                                  className="btn btn-line btn-sm !px-2"
-                                  onClick={() => setPollOptions((p) => p.filter((_, j) => j !== i))}
-                                >
-                                  <X size={14} />
-                                </button>
-                              )}
-                            </div>
-                          ))}
-                          <div className="flex flex-wrap items-center gap-3">
-                            {pollOptions.length < 10 && canEditPoll && (
-                              <button
-                                type="button"
-                                className="btn btn-line btn-sm"
-                                onClick={() => setPollOptions((p) => [...p, ""])}
-                              >
-                                添加选项
-                              </button>
-                            )}
-                            <label className="meta text-[13px] inline-flex items-center gap-2 cursor-pointer">
-                              <input
-                                type="checkbox"
-                                checked={pollMulti}
-                                disabled={loading || !canEditPoll}
-                                onChange={(e) => setPollMulti(e.target.checked)}
-                              />
-                              允许多选
-                            </label>
-                            <label className="meta text-[13px] inline-flex items-center gap-2 cursor-pointer">
-                              <input
-                                type="checkbox"
-                                checked={pollAnonymous}
-                                disabled={loading || !canEditPoll}
-                                onChange={(e) => setPollAnonymous(e.target.checked)}
-                              />
-                              匿名投票
-                            </label>
-                          </div>
-                          {!pollAnonymous && (
-                            <p className="meta text-[12px]">非匿名：投票结果公开后可看到每位投票人</p>
-                          )}
-                          {isCreate && (
-                            <DeadlinePicker
-                              presets={POLL_EXPIRE_DAYS}
-                              mode={deadlineMode}
-                              onModeChange={setDeadlineMode}
-                              days={pollExpireDays}
-                              onDaysChange={setPollExpireDays}
-                              customLocal={customEndsLocal}
-                              onCustomLocalChange={setCustomEndsLocal}
-                              disabled={loading}
-                              hint="到期后自动结束投票；也可由作者提前结束"
-                            />
-                          )}
-                        </div>
-                      )}
-                      {postType === "bounty" && (
-                        <div className="j13-compose-typepanel shrink-0 space-y-3">
-                          <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
-                            悬赏积分
-                          </p>
-                          <p className="meta text-[12.5px]">
-                            发布时从余额托管；到期未采纳自动退回。截止后仍可采纳，将从余额扣款支付且不可撤回。
-                          </p>
-                          <div ref={bountyFieldRef} className="j13-lottery-prize-table-wrap">
-                            <table className="j13-lottery-prize-table">
-                              <thead>
-                                <tr>
-                                  <th scope="col">悬赏积分</th>
-                                  <th scope="col" className="col-count">
-                                    余额
-                                  </th>
-                                </tr>
-                              </thead>
-                              <tbody>
-                                <tr>
-                                  <td>
-                                    <input
-                                      type="number"
-                                      min={1}
-                                      max={100000}
-                                      value={bountyPoints}
-                                      placeholder="如：20"
-                                      disabled={loading || !isCreate}
-                                      aria-invalid={bountyShort || undefined}
-                                      aria-label="悬赏积分"
-                                      required={postType === "bounty"}
-                                      onChange={(e) => {
-                                        const raw = e.target.value;
-                                        if (error.includes("积分")) setError("");
-                                        if (raw === "") {
-                                          setBountyPoints("");
-                                          return;
-                                        }
-                                        const n = Math.max(
-                                          1,
-                                          Math.min(100000, Number(raw) || 1)
-                                        );
-                                        setBountyPoints(n);
-                                      }}
-                                      className={`j13-compose-field${bountyShort ? " j13-compose-field-invalid" : ""}`}
-                                    />
-                                  </td>
-                                  <td className="col-count">
-                                    {isCreate ? (
-                                      <span
-                                        className="meta text-[13px] tabular-nums"
-                                        style={
-                                          bountyShort
-                                            ? { color: "var(--danger)", fontWeight: 600 }
-                                            : undefined
-                                        }
-                                      >
-                                        {pointsBalance === null
-                                          ? "—"
-                                          : pointsBalance.toLocaleString("zh-CN")}
-                                      </span>
-                                    ) : (
-                                      <span className="meta text-[12px]">已托管</span>
-                                    )}
-                                  </td>
-                                </tr>
-                              </tbody>
-                            </table>
-                          </div>
-                          <div className="flex flex-wrap items-center justify-between gap-x-3 gap-y-1">
-                            {bountyShort ? (
-                              <p
-                                className="meta text-[12.5px] m-0"
-                                style={{ color: "var(--danger)" }}
-                                role="status"
-                              >
-                                积分不足，请下调悬赏金额后再发布
-                              </p>
-                            ) : isCreate && typeof bountyPoints !== "number" ? (
-                              <p
-                                className="meta text-[12.5px] m-0"
-                                style={{ color: "var(--danger)" }}
-                              >
-                                请填写悬赏积分，否则无法发布
-                              </p>
-                            ) : !isCreate ? (
-                              <p className="meta text-[12.5px] m-0">编辑不可更改已托管金额</p>
-                            ) : (
-                              <span />
-                            )}
-                            <span
-                              className="meta text-[12.5px] tabular-nums ml-auto"
-                              style={
-                                bountyShort
-                                  ? { color: "var(--danger)", fontWeight: 600 }
-                                  : undefined
-                              }
-                            >
-                              {typeof bountyPoints === "number"
-                                ? `托管 ${bountyPoints.toLocaleString("zh-CN")} 积分`
-                                : "托管 —"}
-                              {isCreate && pointsBalance !== null
-                                ? ` · 余额 ${pointsBalance.toLocaleString("zh-CN")}`
-                                : ""}
-                            </span>
-                          </div>
-                          {isCreate && (
-                            <DeadlinePicker
-                              presets={BOUNTY_EXPIRE_DAYS}
-                              mode={deadlineMode}
-                              onModeChange={setDeadlineMode}
-                              days={bountyExpireDays}
-                              onDaysChange={setBountyExpireDays}
-                              customLocal={customEndsLocal}
-                              onCustomLocalChange={setCustomEndsLocal}
-                              disabled={loading}
-                            />
-                          )}
-                        </div>
-                      )}
-                      {postType === "lottery" && (
-                        <div className="j13-compose-typepanel shrink-0 space-y-3">
-                          <p className="font-semibold text-[14px]" style={{ color: "var(--ink)" }}>
-                            抽奖设置
-                          </p>
-                          <p className="meta text-[12.5px]">
-                            填写奖品名称与数量，中奖名额自动合计。有评论后不可再改奖品。
-                          </p>
-                          {!canEditLotteryPrizes && (
-                            <p className="meta text-[12.5px]" style={{ color: "var(--gold)" }}>
-                              已有评论，奖品设置已锁定
-                            </p>
-                          )}
-                          <div className="j13-lottery-prize-table-wrap">
-                            <table className="j13-lottery-prize-table">
-                              <thead>
-                                <tr>
-                                  <th scope="col" className="col-idx">
-                                    #
-                                  </th>
-                                  <th scope="col">奖品名称</th>
-                                  <th scope="col" className="col-count">
-                                    数量
-                                  </th>
-                                  {canEditLotteryPrizes && (
-                                    <th scope="col" className="col-actions">
-                                      操作
-                                    </th>
-                                  )}
-                                </tr>
-                              </thead>
-                              <tbody>
-                                {lotteryPrizes.map((p, idx) => (
-                                  <tr key={idx}>
-                                    <td className="col-idx">{idx + 1}</td>
-                                    <td>
-                                      <input
-                                        type="text"
-                                        value={p.name}
-                                        maxLength={32}
-                                        placeholder="如：一等奖 / 周边礼包"
-                                        disabled={loading || !canEditLotteryPrizes}
-                                        onChange={(e) => {
-                                          const v = e.target.value.slice(0, 32);
-                                          setLotteryPrizes((prev) =>
-                                            prev.map((row, i) => (i === idx ? { ...row, name: v } : row))
-                                          );
-                                        }}
-                                        className="j13-compose-field"
-                                        aria-label={`奖品 ${idx + 1} 名称`}
-                                        required={postType === "lottery"}
-                                      />
-                                    </td>
-                                    <td className="col-count">
-                                      <input
-                                        type="number"
-                                        min={1}
-                                        max={100}
-                                        value={p.count}
-                                        placeholder="数量"
-                                        disabled={loading || !canEditLotteryPrizes}
-                                        onChange={(e) => {
-                                          const raw = e.target.value;
-                                          if (raw === "") {
-                                            setLotteryPrizes((prev) =>
-                                              prev.map((row, i) => (i === idx ? { ...row, count: "" } : row))
-                                            );
-                                            return;
-                                          }
-                                          const n = Math.max(1, Math.min(100, Number(raw) || 1));
-                                          setLotteryPrizes((prev) =>
-                                            prev.map((row, i) => (i === idx ? { ...row, count: n } : row))
-                                          );
-                                        }}
-                                        className="j13-compose-field j13-compose-field-count"
-                                        aria-label={`奖品 ${idx + 1} 数量`}
-                                        required={postType === "lottery"}
-                                      />
-                                    </td>
-                                    {canEditLotteryPrizes && (
-                                      <td className="col-actions">
-                                        {lotteryPrizes.length > 1 ? (
-                                          <button
-                                            type="button"
-                                            className="btn btn-line btn-sm"
-                                            disabled={loading}
-                                            onClick={() =>
-                                              setLotteryPrizes((prev) => prev.filter((_, i) => i !== idx))
-                                            }
-                                          >
-                                            删除
-                                          </button>
-                                        ) : (
-                                          <span className="meta text-[12px]">—</span>
-                                        )}
-                                      </td>
-                                    )}
-                                  </tr>
-                                ))}
-                              </tbody>
-                            </table>
-                          </div>
-                          <div className="flex flex-wrap items-center justify-between gap-2">
-                            {canEditLotteryPrizes && lotteryPrizes.length < 10 ? (
-                              <button
-                                type="button"
-                                className="btn btn-line btn-sm"
-                                disabled={loading}
-                                onClick={() =>
-                                  setLotteryPrizes((prev) => [...prev, { name: "", count: "" }])
-                                }
-                              >
-                                添加一行
-                              </button>
-                            ) : (
-                              <span />
-                            )}
-                            <span className="meta text-[12.5px] tabular-nums">
-                              合计名额 {lotteryPrizesReady ? lotterySlotTotal : "—"}
-                            </span>
-                          </div>
-                          {canEditLotteryPrizes && !lotteryPrizesReady && (
-                            <p className="meta text-[12.5px]" style={{ color: "var(--danger)" }}>
-                              请填写每一行的奖品名称与数量，否则无法发布
-                            </p>
-                          )}
-                          {isCreate && (
-                            <DeadlinePicker
-                              presets={LOTTERY_EXPIRE_DAYS}
-                              mode={deadlineMode}
-                              onModeChange={setDeadlineMode}
-                              days={lotteryExpireDays}
-                              onDaysChange={setLotteryExpireDays}
-                              customLocal={customEndsLocal}
-                              onCustomLocalChange={setCustomEndsLocal}
-                              disabled={loading}
-                              hint="到期后自动开奖"
-                            />
-                          )}
-                        </div>
-                      )}
-          </section>
-        )}
-
-        {/* 标题与正文 */}
-        <section className="j13-compose-section j13-compose-section-writing" aria-label="标题与正文">
-          <div className="flex items-center justify-between gap-3">
-            <h2 className="j13-compose-section-title !mb-0">标题与正文</h2>
-            <span className="meta text-[12px] tabular-nums">
-              {title.length}/{TITLE_MAX}
-            </span>
-          </div>
-          <div className="shrink-0">
+      <div className="j13-compose-studio">
+        <div className="j13-compose-studio-canvas">
+          <div className="j13-compose-title-row">
             <label className="sr-only" htmlFor="compose-title">
               标题
             </label>
             <input
+              ref={titleRef}
               id="compose-title"
               type="text"
               value={title}
@@ -1218,6 +1516,9 @@ export default function PostComposer(props: PostComposerProps) {
               className="j13-compose-title"
               disabled={loading}
             />
+            <span className="j13-compose-title-count tabular-nums">
+              {title.length}/{TITLE_MAX}
+            </span>
           </div>
           <div className="j13-compose-canvas">
             <label className="sr-only" htmlFor="compose-content">
@@ -1232,78 +1533,83 @@ export default function PostComposer(props: PostComposerProps) {
               rows={18}
               imageMaxMB={attachLimits.imageMaxMB}
               placeholder={
-                "从这里开始写正文…\n\n工具栏可插入格式、代码块、链接、图片与隐藏内容（登录/回复/积分/密码可见）。支持粘贴与拖拽上传图片；默认双栏实时预览。"
+                "从这里开始写正文…\n\n工具栏可插入格式、代码块、链接、图片与隐藏内容（登录/回复/积分/密码可见）。支持粘贴与拖拽上传图片；右上角可切换预览。"
               }
               onSubmitShortcut={() => {
-                if (canSubmit) void handleSubmit();
+                void handleSubmit();
               }}
             />
           </div>
-        </section>
+        </div>
 
-        <ComposeAttachments
-          attachments={attachments}
-          onChange={setAttachments}
-          limits={attachLimits}
-          disabled={loading}
-          onBusyChange={setFileBusy}
-          onPendingChange={setPendingFileCount}
-          sectionRef={attachSectionRef}
-        />
-      </div>
-
-      <div className="j13-compose-actions">
-        {error ? (
-          <div
-            ref={actionsErrorRef}
-            className="alert-error j13-compose-actions-error"
-            role="alert"
-          >
-            {error}
-          </div>
-        ) : (
-          <p className="meta text-[12.5px] max-w-md">
-            {isCreate
-              ? "普通用户发帖需审核 · Ctrl/⌘+Enter 快捷发布"
-              : "保存后立即生效 · 类型不可更改"}
-          </p>
-        )}
-        <div className="j13-compose-actions-end">
-          <ComposeAttachAction
-            count={attachments.length}
-            max={attachLimits.maxCount}
-            onClick={scrollToAttachments}
+        {railOpen ? (
+          <button
+            type="button"
+            className="j13-compose-rail-backdrop"
+            aria-label="关闭发布设置"
+            onClick={() => setRailOpen(false)}
           />
-          {isCreate ? (
-            <Link href={cancelHref} className="btn btn-line !py-3">
-              取消
-            </Link>
-          ) : (
+        ) : null}
+
+        <aside
+          id="j13-compose-rail"
+          className={`j13-compose-studio-rail${railOpen ? " is-open" : ""}`}
+          aria-label="发布设置"
+          aria-hidden={railHidden}
+          inert={railHidden}
+        >
+          <div className="j13-compose-rail-head">
+            <h2 className="j13-compose-rail-head-title">发布设置</h2>
             <button
               type="button"
-              onClick={() => router.push(cancelHref)}
-              className="btn btn-line !py-3"
+              className="j13-compose-back"
+              aria-label="关闭发布设置"
+              onClick={() => setRailOpen(false)}
             >
-              取消
+              <X size={18} />
             </button>
-          )}
-          <button
-            type="submit"
-            disabled={!canSubmit}
-            className="btn btn-primary min-w-[8.5rem] !px-7 !py-3 !text-[15px]"
-          >
-            {loading
-              ? isCreate
-                ? "发布中…"
-                : "保存中…"
-              : fileBusy
-                ? "上传中…"
-                : isCreate
-                  ? "发布帖子"
-                  : "保存修改"}
-          </button>
-        </div>
+          </div>
+          {railInner}
+        </aside>
       </div>
+
+      <Modal
+        open={typeModalOpen && typeSetupKind}
+        title={`${typeLabel}设置`}
+        description={POST_TYPES.find((t) => t.value === postType)?.hint}
+        onClose={closeTypeModal}
+        dismissOnOverlay
+        maxWidthClass={postType === "lottery" ? "max-w-2xl" : "max-w-xl"}
+        panelClassName="p-5 sm:p-6"
+        bodyClassName="j13-compose-typemodal-body"
+        footer={
+          <>
+            <span
+              className="meta text-[12.5px] mr-auto"
+              style={typeSetupReady ? undefined : { color: "var(--danger)", fontWeight: 600 }}
+            >
+              {typeSummary}
+            </span>
+            <button type="button" className="btn btn-line btn-sm" onClick={closeTypeModal}>
+              稍后
+            </button>
+            <button type="button" className="btn btn-primary btn-sm" onClick={completeTypeModal}>
+              完成
+            </button>
+          </>
+        }
+      >
+        <div
+          onKeyDown={(e) => {
+            if (e.key === "Enter" && (e.target as HTMLElement).tagName === "INPUT") {
+              e.preventDefault();
+            }
+          }}
+        >
+          {typeSettingsForm}
+        </div>
+      </Modal>
+
     </form>
   );
 }
diff --git a/frontend/components/PostRow.tsx b/frontend/components/PostRow.tsx
index 80b80b1..61f62ea 100644
--- a/frontend/components/PostRow.tsx
+++ b/frontend/components/PostRow.tsx
@@ -45,7 +45,7 @@ export default async function PostRow({
 
   return (
     <div
-      className={`group relative flex items-center px-4 sm:px-5 border-t cursor-pointer transition-colors hover:bg-[var(--accent-soft)] focus-within:bg-[var(--accent-soft)] j13-fade-up ${
+      className={`group relative flex items-center px-4 sm:px-5 border-t cursor-pointer transition-colors hover:bg-[var(--panel-2)] focus-within:bg-[var(--panel-2)] j13-fade-up ${
         compact ? "gap-2.5 sm:gap-3" : "gap-3.5 sm:gap-4"
       }`}
       style={{
diff --git a/frontend/components/SiteChrome.tsx b/frontend/components/SiteChrome.tsx
index 608819f..b5e16ff 100644
--- a/frontend/components/SiteChrome.tsx
+++ b/frontend/components/SiteChrome.tsx
@@ -17,6 +17,11 @@ function pathIsChat(pathname: string | null) {
   return pathname === "/chat" || pathname.startsWith("/chat/");
 }
 
+function pathIsComposeStudio(pathname: string | null) {
+  if (!pathname) return false;
+  return pathname === "/compose" || /^\/post\/[^/]+\/edit\/?$/.test(pathname);
+}
+
 /** 帖子详情（非 edit）移动端有底栏，回顶需抬高 */
 function pathIsPostDetail(pathname: string | null) {
   if (!pathname) return false;
@@ -75,8 +80,8 @@ export default function SiteChrome({
     return <>{children}</>;
   }
 
-  // 聊天页锁视口、主滚动在对话区，窗口回顶无意义
-  const showBackToTop = !pathIsChat(pathname);
+  // 聊天 / 发帖工作台锁视口，窗口回顶无意义
+  const showBackToTop = !pathIsChat(pathname) && !pathIsComposeStudio(pathname);
 
   return (
     <>
diff --git a/frontend/components/StaffUserMenu.tsx b/frontend/components/StaffUserMenu.tsx
index 0761b3c..048222f 100644
--- a/frontend/components/StaffUserMenu.tsx
+++ b/frontend/components/StaffUserMenu.tsx
@@ -130,7 +130,7 @@ export default function StaffUserMenu({
   };
 
   const itemCls =
-    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13px] transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]";
+    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13px] transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]";
 
   return (
     <div className="relative" ref={menuRef}>
diff --git a/frontend/components/ThemeSync.tsx b/frontend/components/ThemeSync.tsx
index ce23417..af2b800 100644
--- a/frontend/components/ThemeSync.tsx
+++ b/frontend/components/ThemeSync.tsx
@@ -4,39 +4,52 @@ import { useEffect, useRef } from "react";
 import { usePathname } from "next/navigation";
 import { apiGetSettings } from "@/lib/api";
 import { applyAccentTheme } from "@/lib/theme";
+import { applyCustomCSS } from "@/lib/customCode";
 import { realtime, RT_SETTINGS_CHANGED, type RtSettingsData } from "@/lib/realtime";
 import {
   VISIBLE_RECONCILE_GAP_MS,
   onDocumentVisible,
 } from "@/lib/visibilityReconcile";
 
-// 站点主题色同步器：
-// 主题色由管理员在后台修改后，其他用户已打开的标签页不会因软导航重新执行根布局
-// SSR，本组件通过 WS 推送 + 标签页重新可见时探测公开设置，发现变化即热替换
-// accent CSS 变量（复用 lib/theme 的运行时 style 节点），无需 F5 即可换肤。
-// 焦点/可见性事件可能短时间连续触发，限制实际请求间隔
+// 站点外观同步器：
+// 主题色 / 自定义 CSS 由管理员在后台修改后，其他用户已打开的标签页不会因软导航重新执行根布局
+// SSR，本组件通过 WS 推送 + 标签页重新可见时探测公开设置，发现变化即热替换。
+// 自定义 JS 只在整页加载时执行，不在此热替换（避免重复绑定）。
 const MIN_FETCH_GAP_MS = VISIBLE_RECONCILE_GAP_MS;
 
-export default function ThemeSync({ initialAccent }: { initialAccent: string }) {
+export default function ThemeSync({
+  initialAccent,
+  initialCustomCSS,
+}: {
+  initialAccent: string;
+  initialCustomCSS: string;
+}) {
   const pathname = usePathname();
-  // 当前已应用的已保存色（空串=内置默认）；与 SSR 注入的 style 节点保持一致
   const currentRef = useRef((initialAccent || "").trim().toLowerCase());
+  const cssRef = useRef((initialCustomCSS || "").trim());
   const lastFetchAtRef = useRef(0);
   const inFlightRef = useRef(false);
 
   useEffect(() => {
-    // 外观设置页存在"未保存的本地实时预览"，该页面内暂停同步，
-    // 避免 HTTP 校准覆盖管理员正在预览的颜色；离开页面后 effect 重跑立即对齐
+    // 外观设置页存在未保存的本地实时预览，暂停同步避免覆盖草稿
     if (pathname?.startsWith("/admin/appearance")) return;
 
     let cancelled = false;
 
-    const apply = (next: string) => {
+    const applyAccent = (next: string) => {
       if (cancelled || next === currentRef.current) return;
       currentRef.current = next;
       applyAccentTheme(next || null);
     };
 
+    const applyCSS = (next: string) => {
+      if (cancelled) return;
+      const text = (next || "").trim();
+      if (text === cssRef.current) return;
+      cssRef.current = text;
+      applyCustomCSS(text);
+    };
+
     const sync = async () => {
       if (inFlightRef.current) return;
       const now = Date.now();
@@ -44,25 +57,24 @@ export default function ThemeSync({ initialAccent }: { initialAccent: string })
       lastFetchAtRef.current = now;
       inFlightRef.current = true;
       try {
-        // no-store：必须拿到管理员刚保存的最新值，不能走浏览器缓存
-        const { accent } = await apiGetSettings();
+        const settings = await apiGetSettings();
         if (cancelled) return;
-        apply((accent || "").trim().toLowerCase());
+        applyAccent((settings.accent || "").trim().toLowerCase());
+        applyCSS(settings.custom_css || "");
       } catch {
-        // 主题同步失败静默处理，下次回前台再试，不打扰用户
+        // 同步失败静默，下次回前台再试
       } finally {
         inFlightRef.current = false;
       }
     };
 
-    // WebSocket 推送优先：管理员保存即换肤；回前台 HTTP 校准兜底
     const offPush = realtime.on<RtSettingsData>(RT_SETTINGS_CHANGED, (data) => {
-      if (data) apply((data.accent || "").trim().toLowerCase());
+      if (!data) return;
+      applyAccent((data.accent || "").trim().toLowerCase());
+      if (typeof data.custom_css === "string") applyCSS(data.custom_css);
     });
 
-    // 仅 visibility：window focus 与 visibility 常连发，统一走限频即可
     const offVisible = onDocumentVisible(() => void sync(), MIN_FETCH_GAP_MS);
-    // 离开外观页等 pathname 变化时立刻对齐一次（受 MIN_FETCH_GAP 限频）
     void sync();
 
     return () => {
diff --git a/frontend/components/admin/AdminSearchField.tsx b/frontend/components/admin/AdminSearchField.tsx
index 9d645f4..75dc12d 100644
--- a/frontend/components/admin/AdminSearchField.tsx
+++ b/frontend/components/admin/AdminSearchField.tsx
@@ -54,7 +54,7 @@ export default function AdminSearchField({
           type="button"
           onClick={clear}
           aria-label="清除搜索"
-          className="w-7 h-7 inline-flex items-center justify-center rounded-full shrink-0 transition-colors hover:bg-[var(--accent-soft)]"
+          className="w-7 h-7 inline-flex items-center justify-center rounded-full shrink-0 transition-colors hover:bg-[var(--panel-2)]"
           style={{ color: "var(--ink-3)" }}
         >
           <X size={15} />
diff --git a/frontend/components/admin/AdminShell.tsx b/frontend/components/admin/AdminShell.tsx
index d7e6dc6..fbe178e 100644
--- a/frontend/components/admin/AdminShell.tsx
+++ b/frontend/components/admin/AdminShell.tsx
@@ -263,7 +263,7 @@ function AdminUserMenu({ user, onLogout }: { user: User; onLogout: () => void })
   }, [open]);
 
   const itemCls =
-    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13.5px] transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]";
+    "w-full flex items-center gap-2.5 px-4 py-2.5 text-[13.5px] transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]";
 
   return (
     <div className="relative" ref={menuRef}>
diff --git a/frontend/components/admin/charts.tsx b/frontend/components/admin/charts.tsx
index 87fc59b..549f04e 100644
--- a/frontend/components/admin/charts.tsx
+++ b/frontend/components/admin/charts.tsx
@@ -45,14 +45,16 @@ export function AdminChartCard({
   hint,
   children,
   actions,
+  className = "",
 }: {
   title: string;
   hint?: string;
   children: React.ReactNode;
   actions?: React.ReactNode;
+  className?: string;
 }) {
   return (
-    <div className="panel p-4 sm:p-5 flex flex-col min-h-[260px]">
+    <div className={`panel p-4 sm:p-5 flex flex-col ${className}`.trim()}>
       <div className="flex items-start justify-between gap-2 mb-3">
         <div className="min-w-0">
           <h3 className="text-[14.5px] font-semibold" style={{ color: "var(--ink)" }}>
@@ -66,7 +68,7 @@ export function AdminChartCard({
       </div>
       {/* 捕获阶段拦截 mousedown：冒泡阶段太晚，浏览器已开始 SVG 多柱选区黑框 */}
       <div
-        className="flex-1 min-h-[180px] w-full overflow-hidden select-none [&_*]:select-none [&_svg]:outline-none [&_.recharts-surface]:outline-none [&_.recharts-tooltip-cursor]:hidden"
+        className="w-full overflow-hidden select-none [&_*]:select-none [&_svg]:outline-none [&_.recharts-surface]:outline-none [&_.recharts-tooltip-cursor]:hidden"
         onMouseDownCapture={(e) => e.preventDefault()}
       >
         {children}
@@ -144,15 +146,17 @@ export function SingleAreaChart({
   dataKey,
   name,
   color = "var(--accent)",
+  height = 200,
 }: {
   data: { date: string; [k: string]: string | number }[];
   dataKey: string;
   name: string;
   color?: string;
+  height?: number;
 }) {
   const rows = data.map((d) => ({ ...d, label: shortDate(String(d.date)) }));
   return (
-    <ResponsiveContainer width="100%" height={200}>
+    <ResponsiveContainer width="100%" height={height}>
       <AreaChart data={rows} margin={{ top: 12, right: 12, left: 0, bottom: 0 }} accessibilityLayer={false}>
         <CartesianGrid stroke="var(--line)" strokeDasharray="3 3" vertical={false} />
         <XAxis dataKey="label" tick={{ fill: "var(--ink-3)", fontSize: 11 }} axisLine={false} tickLine={false} />
@@ -183,8 +187,10 @@ export function NamedBarChart({
   layout?: "vertical" | "horizontal";
 }) {
   if (layout === "horizontal") {
+    // 固定像素高度，避免 overflow 滚动条 ↔ ResponsiveContainer 互相触发闪烁
+    const chartH = Math.max(180, Math.min(320, data.length * 28));
     return (
-      <ResponsiveContainer width="100%" height={Math.max(180, data.length * 28)}>
+      <ResponsiveContainer width="100%" height={chartH}>
         <BarChart data={data} layout="vertical" margin={{ top: 8, right: 12, left: 8, bottom: 4 }} accessibilityLayer={false}>
           <CartesianGrid stroke="var(--line)" strokeDasharray="3 3" horizontal={false} />
           <XAxis type="number" tick={{ fill: "var(--ink-3)", fontSize: 11 }} axisLine={false} allowDecimals={false} />
diff --git a/frontend/components/home/CommunityPanels.tsx b/frontend/components/home/CommunityPanels.tsx
index 1c22ce1..482b9dc 100644
--- a/frontend/components/home/CommunityPanels.tsx
+++ b/frontend/components/home/CommunityPanels.tsx
@@ -296,7 +296,7 @@ function NewUsers({ users }: { users: NewUser[] }) {
             <li key={u.id}>
               <Link
                 href={`/u/${u.id}`}
-                className="flex flex-col items-center gap-1.5 rounded-lg px-1 py-1 transition-colors hover:bg-[var(--accent-soft)] focus-visible:bg-[var(--accent-soft)]"
+                className="flex flex-col items-center gap-1.5 rounded-lg px-1 py-1 transition-colors hover:bg-[var(--panel-2)] focus-visible:bg-[var(--panel-2)]"
               >
                 <Avatar name={name} src={u.avatar} size={38} />
                 <span
diff --git a/frontend/lib/api.ts b/frontend/lib/api.ts
index c0b581a..7788040 100644
--- a/frontend/lib/api.ts
+++ b/frontend/lib/api.ts
@@ -677,6 +677,10 @@ export interface PublicSettings {
   attachment_max_count: number;
   /** 正文插图上限 MB；缺省 5 */
   image_max_mb: number;
+  /** 全站自定义 CSS；空串=无 */
+  custom_css: string;
+  /** 全站自定义 JS；空串=无（保存后整页加载生效） */
+  custom_js: string;
 }
 
 /** 与后端 DefaultAttachmentExts 保持同步 */
@@ -711,6 +715,8 @@ const DEFAULT_PUBLIC_SETTINGS: PublicSettings = {
   attachment_max_mb: 20,
   attachment_max_count: 10,
   image_max_mb: 5,
+  custom_css: "",
+  custom_js: "",
 };
 
 function normalizeAttachmentExts(raw: unknown): string[] {
@@ -780,6 +786,8 @@ function normalizePublicSettings(data: Partial<PublicSettings> | null | undefine
     attachment_max_mb: maxMB,
     attachment_max_count: maxCount,
     image_max_mb: imageMB,
+    custom_css: typeof data?.custom_css === "string" ? data.custom_css : "",
+    custom_js: typeof data?.custom_js === "string" ? data.custom_js : "",
   };
 }
 
@@ -2136,6 +2144,8 @@ export type UpdateSiteSettingsBody = {
   attachment_max_mb?: number;
   attachment_max_count?: number;
   image_max_mb?: number;
+  custom_css?: string;
+  custom_js?: string;
   timeline_git_import?: string;
 };
 
diff --git a/frontend/lib/customCode.ts b/frontend/lib/customCode.ts
new file mode 100644
index 0000000..4ad3bd9
--- /dev/null
+++ b/frontend/lib/customCode.ts
@@ -0,0 +1,100 @@
+// 全站自定义 CSS：SSR <style id="j13-custom-css"> + 客户端 #j13-custom-css-runtime。
+// 禁止对 SSR 节点 remove/改写；预览时 disable SSR，由 runtime 作为唯一源。
+
+export const MAX_CUSTOM_CSS_CHARS = 48000;
+export const MAX_CUSTOM_JS_CHARS = 48000;
+
+/** 空配置时展示的注释模板：保存前不生效，全部注释故误保存也无副作用 */
+export const SAMPLE_CUSTOM_CSS = `/* 姜十三 · 自定义 CSS 示例
+ * 覆盖 globals.css 令牌或组件类。保存后对全站访客生效。
+ * 勿写入 </style>
+ *
+ * 常用令牌：
+ *   --bg / --panel / --ink / --accent
+ *   --bg-halo            顶部光晕色（建议 ≤ 0.04）
+ *   --bg-noise-opacity   噪点层透明度
+ *   --r / --shadow-sm    卡片圆角与阴影
+ */
+
+/* 改底色与光晕（浅 / 暗成对改）
+:root {
+  --bg: #f7f7f5;
+  --bg-halo: rgba(7, 192, 95, 0.04);
+  --bg-noise-opacity: 0.03;
+  --panel: #ffffff;
+  --r: 12px;
+  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
+}
+.dark {
+  --bg: #101211;
+  --bg-halo: rgba(7, 192, 95, 0.03);
+  --bg-noise-opacity: 0.04;
+}
+*/
+
+/* 关掉光晕和噪点
+body::before,
+body::after {
+  display: none;
+}
+*/
+
+/* 隐藏页脚
+footer { display: none; }
+*/
+`;
+
+export const SAMPLE_CUSTOM_JS = `// 姜十三 · 自定义 JS 示例
+// 仅整页加载执行一次（F5 / 首次进入），站内软导航不会重跑。
+// 勿写入 </script>
+//
+// 给 <html> 打标记，便于 CSS 写 html[data-custom] .panel { ... }
+// document.documentElement.dataset.custom = "1";
+//
+// 等 DOM 就绪后再改节点
+// document.addEventListener("DOMContentLoaded", function () {
+//   // document.querySelector("footer")?.remove();
+// });
+`;
+
+const SSR_STYLE_ID = "j13-custom-css";
+const RUNTIME_STYLE_ID = "j13-custom-css-runtime";
+
+export function clipCustomSnippet(raw: string, max: number): string {
+  const s = (raw || "").replace(/\u0000/g, "");
+  if (s.length <= max) return s;
+  return [...s].slice(0, max).join("");
+}
+
+function ensureRuntimeStyle(): HTMLStyleElement {
+  let el = document.getElementById(RUNTIME_STYLE_ID) as HTMLStyleElement | null;
+  if (el) return el;
+  el = document.createElement("style");
+  el.id = RUNTIME_STYLE_ID;
+  el.setAttribute("data-custom-css-source", "runtime");
+  document.body.appendChild(el);
+  return el;
+}
+
+function removeRuntimeStyle(): void {
+  document.getElementById(RUNTIME_STYLE_ID)?.remove();
+}
+
+function ssrStyle(): HTMLStyleElement | null {
+  return document.getElementById(SSR_STYLE_ID) as HTMLStyleElement | null;
+}
+
+/** 将自定义 CSS 应用到当前文档。preview=true 时忽略 SSR 节点（外观页草稿）。 */
+export function applyCustomCSS(css: string, preview = false): void {
+  if (typeof document === "undefined") return;
+  const text = clipCustomSnippet(css, MAX_CUSTOM_CSS_CHARS).trim();
+  const ssr = ssrStyle();
+  if (ssr) ssr.disabled = preview;
+
+  if (!text) {
+    removeRuntimeStyle();
+    if (!preview && ssr) ssr.disabled = false;
+    return;
+  }
+  ensureRuntimeStyle().textContent = text;
+}
diff --git a/frontend/lib/postMeta.ts b/frontend/lib/postMeta.ts
index 50e9a66..f6436cf 100644
--- a/frontend/lib/postMeta.ts
+++ b/frontend/lib/postMeta.ts
@@ -1,11 +1,11 @@
 /** 帖子类型 / 可见性 / 展示文案（前后端共用约定） */
 
 export const POST_TYPES = [
-  { value: "discussion", label: "讨论", hint: "默认讨论帖" },
+  { value: "discussion", label: "讨论", hint: "日常交流" },
   { value: "question", label: "问答", hint: "提问求解" },
-  { value: "poll", label: "投票", hint: "发起投票，读者可参与" },
-  { value: "bounty", label: "悬赏", hint: "发布时托管积分，采纳后发放" },
-  { value: "lottery", label: "抽奖", hint: "奖品类型+数量入池，评论后锁定奖品" },
+  { value: "poll", label: "投票", hint: "收集选项意见" },
+  { value: "bounty", label: "悬赏", hint: "积分托管求解" },
+  { value: "lottery", label: "抽奖", hint: "评论参与开奖" },
 ] as const;
 
 export type PostTypeValue = (typeof POST_TYPES)[number]["value"];
diff --git a/frontend/lib/realtime.ts b/frontend/lib/realtime.ts
index a8c5ed3..8844085 100644
--- a/frontend/lib/realtime.ts
+++ b/frontend/lib/realtime.ts
@@ -59,6 +59,8 @@ export interface RtSettingsData {
   attachment_max_mb?: number;
   attachment_max_count?: number;
   image_max_mb?: number;
+  custom_css?: string;
+  custom_js?: string;
 }
 
 // 群聊新消息：data 为落库的 ChatMessage（含 sender）
diff --git a/frontend/lib/theme.ts b/frontend/lib/theme.ts
index a2c71f7..1692e36 100644
--- a/frontend/lib/theme.ts
+++ b/frontend/lib/theme.ts
@@ -157,7 +157,7 @@ function clampForLight(hex: string): string {
 function deriveDark(hex: string): string {
   const [h, s, lRaw] = rgbToHsl(hexToRgb(hex));
   let l = Math.max(lRaw, 0.62);
-  const surfaces = ["#181b21", "#0f1115", "#10162b"];
+  const surfaces = ["#181b21", "#101211", "#10162b"];
   let cur = hex;
   for (let i = 0; i < 120; i++) {
     cur = rgbToHex(hslToRgb([h, s, l]));
@@ -207,18 +207,18 @@ function buildAccentCSS(input: string): string {
     `--accent-hi:${hi};`,
     `--accent-soft:${rgba(light, 0.1)};`,
     `--accent-on:#ffffff;`,
-    `--nav-active-bg:${rgba(light, 0.1)};`,
+    `--nav-active-bg:var(--panel);`,
     `--nav-active-ink:${light};`,
-    `--nav-active-line:${rgba(light, 0.22)};`,
+    `--nav-active-line:${rgba(light, 0.38)};`,
     `}`,
     `.dark{`,
     `--accent:${dark};`,
     `--accent-hi:${darkHi};`,
     `--accent-soft:${rgba(dark, 0.16)};`,
     `--accent-on:#10162b;`,
-    `--nav-active-bg:${rgba(dark, 0.14)};`,
+    `--nav-active-bg:var(--panel);`,
     `--nav-active-ink:${darkHi};`,
-    `--nav-active-line:${rgba(dark, 0.3)};`,
+    `--nav-active-line:${rgba(dark, 0.38)};`,
     `}`,
   ].join("");
 }