diff --git a/src/components/FeedbackFab.tsx b/src/components/FeedbackFab.tsx
new file mode 100644
index 0000000..3b67239
--- /dev/null
+++ b/src/components/FeedbackFab.tsx
@@ -0,0 +1,336 @@
+import { useEffect, useRef, useState } from 'react';
+import { motion, AnimatePresence } from 'motion/react';
+import { MessageCircleHeart, X, ChevronRight, ChevronLeft, Check, Sparkles } from 'lucide-react';
+import { fetchJson } from '../auth/api-client';
+
+type FeedbackType = 'dimension' | 'bug' | 'ux' | 'other';
+
+const TYPE_OPTIONS: { key: FeedbackType; emoji: string; label: string; sub: string; color: string }[] = [
+  { key: 'dimension', emoji: '💡', label: '想看新的统计维度', sub: '比如按 XX 维度分组', color: 'from-amber-50 to-orange-50 border-amber-100' },
+  { key: 'bug',       emoji: '🐛', label: '报告一个 bug',     sub: '哪里看着不对劲',   color: 'from-rose-50 to-red-50 border-rose-100' },
+  { key: 'ux',        emoji: '🎨', label: '界面 / 体验建议', sub: '哪里能更顺手',     color: 'from-violet-50 to-fuchsia-50 border-violet-100' },
+  { key: 'other',     emoji: '📝', label: '其他想法',         sub: '欢迎随便聊聊',     color: 'from-slate-50 to-blue-50 border-slate-100' },
+];
+
+const MODULE_LABELS: Record<string, string> = {
+  assets: '资产管理',
+  mileage: '里程管理',
+  energy: '能源管理',
+  scheduling: '智能调度',
+  ele: '充电导入',
+  '': '通用',
+};
+
+function detectModule(): string {
+  const hash = (window.location.hash || '').slice(1);
+  const path = window.location.pathname;
+  if (path.includes('/ele/')) return 'ele';
+  if (hash.includes('ele')) return 'ele';
+  if (hash.startsWith('/')) return hash.split('/')[1] || '';
+  return hash || '';
+}
+
+interface Props {
+  /** 显式覆盖当前模块（否则自动从 URL 检测） */
+  module?: string;
+}
+
+export default function FeedbackFab({ module: moduleProp }: Props = {}) {
+  const [open, setOpen] = useState(false);
+  const [step, setStep] = useState<1 | 2 | 3 | 4>(1);
+  const [type, setType] = useState<FeedbackType | null>(null);
+  const [mod, setMod] = useState<string>('');
+  const [content, setContent] = useState('');
+  const [contact, setContact] = useState('');
+  const [submitting, setSubmitting] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const taRef = useRef<HTMLTextAreaElement>(null);
+
+  // Open: detect current module
+  useEffect(() => {
+    if (open && step === 1) {
+      setMod(moduleProp ?? detectModule());
+    }
+  }, [open, step, moduleProp]);
+
+  // Lock scroll when open
+  useEffect(() => {
+    if (!open) return;
+    const prev = document.body.style.overflow;
+    document.body.style.overflow = 'hidden';
+    return () => { document.body.style.overflow = prev; };
+  }, [open]);
+
+  const reset = () => {
+    setStep(1);
+    setType(null);
+    setContent('');
+    setContact('');
+    setError(null);
+  };
+
+  const close = () => {
+    setOpen(false);
+    setTimeout(reset, 300); // 等动画完
+  };
+
+  const submit = async () => {
+    if (!type || !content.trim()) return;
+    setSubmitting(true);
+    setError(null);
+    try {
+      await fetchJson('/api/feedback/submit', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          type,
+          module: mod || null,
+          content: content.trim(),
+          contact: contact.trim() || null,
+          userAgent: navigator.userAgent.slice(0, 500),
+        }),
+      });
+      setStep(4);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : String(e));
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  const next = () => {
+    if (step === 1 && !type) return;
+    if (step === 2 && !content.trim()) {
+      taRef.current?.focus();
+      return;
+    }
+    if (step === 3) {
+      submit();
+      return;
+    }
+    setStep((step + 1) as typeof step);
+  };
+
+  const back = () => setStep((Math.max(1, step - 1)) as typeof step);
+
+  const canNext = step === 1 ? !!type : step === 2 ? content.trim().length > 0 : true;
+  const progress = ((step === 4 ? 4 : step) / 4) * 100;
+
+  return (
+    <>
+      {/* Floating Action Button */}
+      <motion.button
+        initial={{ scale: 0, opacity: 0 }}
+        animate={{ scale: 1, opacity: 1 }}
+        transition={{ delay: 0.4, type: 'spring', stiffness: 300, damping: 20 }}
+        whileHover={{ scale: 1.08 }}
+        whileTap={{ scale: 0.92 }}
+        onClick={() => setOpen(true)}
+        className="fixed bottom-20 right-4 md:bottom-6 md:right-6 z-[60] w-12 h-12 rounded-full bg-gradient-to-br from-blue-500 to-cyan-400 text-white shadow-lg shadow-blue-200 flex items-center justify-center group"
+        aria-label="提建议"
+        title="提建议 / 想看的数据"
+      >
+        <MessageCircleHeart size={20} className="drop-shadow group-hover:scale-110 transition-transform" />
+        <span className="absolute -top-0.5 -right-0.5 w-3 h-3 rounded-full bg-amber-300 ring-2 ring-white animate-pulse" />
+      </motion.button>
+
+      {/* Modal */}
+      <AnimatePresence>
+        {open && (
+          <motion.div
+            initial={{ opacity: 0 }}
+            animate={{ opacity: 1 }}
+            exit={{ opacity: 0 }}
+            className="fixed inset-0 z-[90] bg-slate-900/40 backdrop-blur-sm flex items-end md:items-center justify-center"
+            onClick={close}
+          >
+            <motion.div
+              initial={{ y: '100%', opacity: 0 }}
+              animate={{ y: 0, opacity: 1 }}
+              exit={{ y: '100%', opacity: 0 }}
+              transition={{ y: { type: 'spring', damping: 28, stiffness: 320 }, opacity: { duration: 0.18 } }}
+              className="bg-white w-full md:max-w-md md:rounded-3xl rounded-t-3xl shadow-2xl max-h-[92vh] overflow-hidden flex flex-col"
+              onClick={(e) => e.stopPropagation()}
+            >
+              {/* Drag handle */}
+              <div className="flex justify-center pt-2.5 pb-1">
+                <div className="w-10 h-1 rounded-full bg-slate-300" />
+              </div>
+
+              {/* Header + progress */}
+              <div className="px-4 pb-3 border-b border-slate-100">
+                <div className="flex items-center justify-between mb-2">
+                  <div className="flex items-center gap-2">
+                    <div className="w-7 h-7 rounded-lg bg-gradient-to-br from-blue-500 to-cyan-400 flex items-center justify-center">
+                      <Sparkles size={14} className="text-white" />
+                    </div>
+                    <div>
+                      <div className="text-sm font-black text-slate-800 leading-tight">
+                        {step === 4 ? '收到啦~' : '提个建议'}
+                      </div>
+                      <div className="text-[10px] text-slate-400 font-bold">
+                        {step === 1 && '第一步 / 共 3 步'}
+                        {step === 2 && '第二步 / 共 3 步'}
+                        {step === 3 && '第三步 / 共 3 步'}
+                        {step === 4 && '感谢你的反馈'}
+                      </div>
+                    </div>
+                  </div>
+                  <button onClick={close} className="p-1.5 -mr-1 text-slate-400 hover:text-slate-700">
+                    <X size={18} />
+                  </button>
+                </div>
+                <div className="h-1 bg-slate-100 rounded-full overflow-hidden">
+                  <motion.div
+                    initial={false}
+                    animate={{ width: `${progress}%` }}
+                    transition={{ type: 'spring', damping: 28, stiffness: 280 }}
+                    className="h-full bg-gradient-to-r from-blue-500 to-cyan-400 rounded-full"
+                  />
+                </div>
+              </div>
+
+              {/* Body */}
+              <div className="flex-1 overflow-y-auto px-4 py-4">
+                <AnimatePresence mode="wait">
+                  {step === 1 && (
+                    <motion.div key="s1" initial={{ opacity: 0, x: 12 }} animate={{ opacity: 1, x: 0 }} exit={{ opacity: 0, x: -12 }} transition={{ duration: 0.2 }}>
+                      <p className="text-[12px] font-bold text-slate-600 mb-3">想反馈什么呢？</p>
+                      <div className="grid grid-cols-1 gap-2">
+                        {TYPE_OPTIONS.map(opt => (
+                          <button
+                            key={opt.key}
+                            onClick={() => { setType(opt.key); setStep(2); }}
+                            className={`text-left p-3 rounded-2xl border bg-gradient-to-br ${opt.color} hover:shadow-md transition-all flex items-center gap-3 ${type === opt.key ? 'ring-2 ring-blue-400 shadow' : ''}`}
+                          >
+                            <span className="text-2xl">{opt.emoji}</span>
+                            <div className="flex-1 min-w-0">
+                              <div className="text-[12px] font-black text-slate-800">{opt.label}</div>
+                              <div className="text-[10px] text-slate-500 font-bold mt-0.5">{opt.sub}</div>
+                            </div>
+                            <ChevronRight size={14} className="text-slate-400 flex-shrink-0" />
+                          </button>
+                        ))}
+                      </div>
+                    </motion.div>
+                  )}
+
+                  {step === 2 && (
+                    <motion.div key="s2" initial={{ opacity: 0, x: 12 }} animate={{ opacity: 1, x: 0 }} exit={{ opacity: 0, x: -12 }} transition={{ duration: 0.2 }} className="space-y-3">
+                      <div>
+                        <p className="text-[12px] font-bold text-slate-600 mb-2">说说具体内容</p>
+                        <textarea
+                          ref={taRef}
+                          value={content}
+                          onChange={(e) => setContent(e.target.value)}
+                          autoFocus
+                          rows={5}
+                          maxLength={1000}
+                          placeholder={
+                            type === 'dimension' ? '比如：希望按客户/区域/日期范围 等等切片看里程数据…'
+                            : type === 'bug'    ? '比如：氢能页面 04-28 嘉燃经开站显示 153.81，但…'
+                            : type === 'ux'     ? '比如：能不能把外部 tab 默认收起，加载快一点…'
+                                                : '随便聊聊你的想法'
+                          }
+                          className="w-full bg-slate-50 border-none rounded-xl p-3 text-[12px] text-slate-700 outline-none focus:ring-2 focus:ring-blue-500/20 resize-none"
+                        />
+                        <div className="text-right text-[10px] text-slate-300 font-bold mt-1">{content.length} / 1000</div>
+                      </div>
+                      <div>
+                        <p className="text-[10px] font-bold text-slate-400 uppercase mb-1.5">所在板块</p>
+                        <div className="flex gap-1 flex-wrap">
+                          {Object.entries(MODULE_LABELS).map(([k, label]) => (
+                            <button
+                              key={k}
+                              onClick={() => setMod(k)}
+                              className={`px-2.5 py-1 rounded-full text-[10px] font-bold border transition-all ${mod === k ? 'bg-blue-50 border-blue-200 text-blue-600' : 'bg-white border-slate-200 text-slate-500 hover:border-slate-300'}`}
+                            >
+                              {label}
+                            </button>
+                          ))}
+                        </div>
+                      </div>
+                    </motion.div>
+                  )}
+
+                  {step === 3 && (
+                    <motion.div key="s3" initial={{ opacity: 0, x: 12 }} animate={{ opacity: 1, x: 0 }} exit={{ opacity: 0, x: -12 }} transition={{ duration: 0.2 }} className="space-y-3">
+                      <p className="text-[12px] font-bold text-slate-600">方便留个联系方式吗？</p>
+                      <p className="text-[11px] text-slate-400 font-bold">非必填。留下我们可以跟进进展，没留也不影响提交～</p>
+                      <input
+                        type="text"
+                        value={contact}
+                        onChange={(e) => setContact(e.target.value)}
+                        autoFocus
+                        maxLength={120}
+                        placeholder="微信 / 钉钉 / 邮箱 / 手机号 都行"
+                        className="w-full bg-slate-50 border-none rounded-xl p-3 text-[12px] text-slate-700 outline-none focus:ring-2 focus:ring-blue-500/20"
+                      />
+                      <div className="bg-slate-50 rounded-xl p-3 mt-1">
+                        <div className="text-[10px] font-bold text-slate-400 uppercase mb-1.5">提交概览</div>
+                        <div className="text-[11px] text-slate-600 space-y-1">
+                          <div>类型：<span className="font-bold text-slate-800">{TYPE_OPTIONS.find(t => t.key === type)?.label}</span></div>
+                          <div>板块：<span className="font-bold text-slate-800">{MODULE_LABELS[mod] || '通用'}</span></div>
+                          <div className="break-words">内容：<span className="font-bold text-slate-800 line-clamp-3">{content}</span></div>
+                        </div>
+                      </div>
+                      {error && <div className="text-[11px] text-rose-500 font-bold">{error}</div>}
+                    </motion.div>
+                  )}
+
+                  {step === 4 && (
+                    <motion.div key="s4" initial={{ opacity: 0, scale: 0.9 }} animate={{ opacity: 1, scale: 1 }} transition={{ duration: 0.3 }} className="text-center py-6">
+                      <motion.div
+                        initial={{ scale: 0, rotate: -180 }}
+                        animate={{ scale: 1, rotate: 0 }}
+                        transition={{ type: 'spring', damping: 12, stiffness: 200, delay: 0.1 }}
+                        className="w-16 h-16 rounded-full bg-gradient-to-br from-emerald-400 to-cyan-400 mx-auto flex items-center justify-center mb-3"
+                      >
+                        <Check size={28} strokeWidth={3} className="text-white" />
+                      </motion.div>
+                      <div className="text-base font-black text-slate-800 mb-1">谢谢你的反馈 ❤️</div>
+                      <div className="text-[12px] text-slate-500 font-bold leading-relaxed">产品同学会认真看每一条<br />有进展会通过你留的联系方式同步</div>
+                    </motion.div>
+                  )}
+                </AnimatePresence>
+              </div>
+
+              {/* Footer */}
+              {step < 4 && (
+                <div className="px-4 py-3 border-t border-slate-100 flex items-center gap-2">
+                  {step > 1 && (
+                    <button
+                      onClick={back}
+                      className="px-3 py-2 rounded-xl text-[12px] font-bold text-slate-500 hover:bg-slate-50 flex items-center gap-1"
+                    >
+                      <ChevronLeft size={14} /> 上一步
+                    </button>
+                  )}
+                  <div className="flex-1" />
+                  <button
+                    onClick={next}
+                    disabled={!canNext || submitting}
+                    className="px-4 py-2 rounded-xl text-[12px] font-bold bg-blue-600 text-white shadow shadow-blue-100 disabled:bg-slate-200 disabled:text-slate-400 disabled:shadow-none flex items-center gap-1"
+                  >
+                    {submitting ? '提交中…' : step === 3 ? '提交' : '下一步'}
+                    {!submitting && step !== 3 && <ChevronRight size={14} />}
+                  </button>
+                </div>
+              )}
+              {step === 4 && (
+                <div className="px-4 py-3 border-t border-slate-100">
+                  <button
+                    onClick={close}
+                    className="w-full py-2.5 rounded-xl text-[12px] font-bold bg-blue-600 text-white shadow shadow-blue-100"
+                  >
+                    完成
+                  </button>
+                </div>
+              )}
+            </motion.div>
+          </motion.div>
+        )}
+      </AnimatePresence>
+    </>
+  );
+}
diff --git a/src/components/RotatingFooterHint.tsx b/src/components/RotatingFooterHint.tsx
new file mode 100644
index 0000000..f518e47
--- /dev/null
+++ b/src/components/RotatingFooterHint.tsx
@@ -0,0 +1,51 @@
+import { useEffect, useState } from 'react';
+
+const FOOTER_HINTS = [
+  '想看哪个角度的数据？告诉我们一下嘛',
+  '更多统计维度接入中，欢迎您的建议 ~',
+  '下一个图表，可能就是您建议的那个',
+  '数据科学家正在深夜挖掘新维度…',
+  '维度灵感正在路上，钉一下产品同学也行',
+  '数字背后还有故事，等下一次上线揭晓',
+];
+
+interface Props {
+  /** 自定义提示词集合，默认使用通用文案 */
+  hints?: string[];
+  /** 切换间隔，默认 4 秒 */
+  intervalMs?: number;
+  /** 额外类名 */
+  className?: string;
+  /** 点击时回调（一般用来打开反馈弹窗） */
+  onClick?: () => void;
+}
+
+export default function RotatingFooterHint({ hints = FOOTER_HINTS, intervalMs = 4000, className = '', onClick }: Props) {
+  const [idx, setIdx] = useState(0);
+  useEffect(() => {
+    if (hints.length <= 1) return;
+    const t = setInterval(() => setIdx(i => (i + 1) % hints.length), intervalMs);
+    return () => clearInterval(t);
+  }, [hints, intervalMs]);
+
+  return (
+    <div
+      className={`mt-1 flex items-center justify-center gap-1.5 text-[11px] text-slate-400 font-bold ${onClick ? 'cursor-pointer hover:text-blue-500 transition-colors' : ''} ${className}`}
+      onClick={onClick}
+    >
+      <span className="inline-block w-1.5 h-1.5 rounded-full bg-blue-400 animate-pulse" />
+      <span
+        key={idx}
+        style={{ animation: 'rotatingHintFade 0.5s ease' }}
+      >
+        {hints[idx]}
+      </span>
+      <style>{`
+        @keyframes rotatingHintFade {
+          from { opacity: 0; transform: translateY(2px); }
+          to   { opacity: 1; transform: translateY(0); }
+        }
+      `}</style>
+    </div>
+  );
+}
diff --git a/src/components/Shell.tsx b/src/components/Shell.tsx
index 71782bc..33137ef 100644
--- a/src/components/Shell.tsx
+++ b/src/components/Shell.tsx
@@ -1,6 +1,7 @@
 import { useState, useEffect, useMemo, type ComponentType } from 'react';
 import { useAuth } from '../auth/useAuth';
 import { DemoModeProvider } from './Blur';
+import FeedbackFab from './FeedbackFab';
 
 export interface ModuleConfig {
   id: string;
@@ -106,6 +107,7 @@ export function Shell({ modules }: { modules: ModuleConfig[] }) {
       {/* 内容区 */}
       <main className="flex-1 md:ml-16 pb-16 md:pb-0 min-w-0" style={{ overflowX: 'clip' }}>
         {ActiveComponent && <ActiveComponent />}
+        <FeedbackFab module={activeModule} />
       </main>
 
       {/* 移动端底部导航 (md 以下) */}
diff --git a/src/modules/assets/AssetsModule.tsx b/src/modules/assets/AssetsModule.tsx
index 2d44df6..23cba41 100644
--- a/src/modules/assets/AssetsModule.tsx
+++ b/src/modules/assets/AssetsModule.tsx
@@ -35,6 +35,7 @@ import type { WeeklyDetailItem } from './api';
 import { SearchSelect } from '../../components/SearchSelect';
 import { MultiSearchSelect } from '../../components/MultiSearchSelect';
 import Blur from '../../components/Blur';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 
 // --- Constants ---
@@ -2838,7 +2839,7 @@ export default function AssetsModule() {
         </AnimatePresence>
 
       </div>
-
+      <RotatingFooterHint className="pb-4" />
     </div>
   );
 }
diff --git a/src/modules/ele/EleImportPage.tsx b/src/modules/ele/EleImportPage.tsx
index b554dc8..3cdcd93 100644
--- a/src/modules/ele/EleImportPage.tsx
+++ b/src/modules/ele/EleImportPage.tsx
@@ -6,6 +6,8 @@ import {
 } from 'lucide-react';
 import { fetchJson } from '../../auth/api-client';
 import { useAuth } from '../../auth/useAuth';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
+import FeedbackFab from '../../components/FeedbackFab';
 
 function getJwt(): string | null {
   return sessionStorage.getItem('bi_jwt');
@@ -345,7 +347,10 @@ export default function EleImportPage() {
             </table>
           </div>
         </section>
+
+        <RotatingFooterHint className="pb-4" />
       </div>
+      <FeedbackFab module="ele" />
     </div>
   );
 }
diff --git a/src/modules/energy/ElectricDaily.tsx b/src/modules/energy/ElectricDaily.tsx
index ffbb3b6..bbbbc4b 100644
--- a/src/modules/energy/ElectricDaily.tsx
+++ b/src/modules/energy/ElectricDaily.tsx
@@ -4,6 +4,7 @@ import { motion, AnimatePresence } from 'motion/react';
 import TrendBadge from './TrendBadge';
 import { fetchElectricMonthly } from './api';
 import type { CustomerType, ElectricMonthGroup } from './types';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 export default function ElectricDaily() {
   const [customer, setCustomer] = useState<CustomerType>('lingniu');
@@ -114,6 +115,7 @@ export default function ElectricDaily() {
           );
         })}
       </div>
+      <RotatingFooterHint />
     </div>
   );
 }
diff --git a/src/modules/energy/ElectricOverview.tsx b/src/modules/energy/ElectricOverview.tsx
index d5a3306..eb8b076 100644
--- a/src/modules/energy/ElectricOverview.tsx
+++ b/src/modules/energy/ElectricOverview.tsx
@@ -2,6 +2,7 @@ import { useEffect, useState } from 'react';
 import { Wallet, CalendarClock } from 'lucide-react';
 import { BarChart, Bar, XAxis, YAxis, ResponsiveContainer, Cell, Tooltip } from 'recharts';
 import { fetchElectricOverview, type ElectricOverviewResponse } from './api';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 function fmtYuan(yuan: number) {
   return `¥${yuan.toLocaleString('zh-CN', { maximumFractionDigits: 2 })}`;
@@ -95,6 +96,7 @@ export default function ElectricOverview() {
           </BarChart>
         </ResponsiveContainer>
       </div>
+      <RotatingFooterHint />
     </div>
   );
 }
diff --git a/src/modules/energy/HydrogenDaily.tsx b/src/modules/energy/HydrogenDaily.tsx
index 39ac03f..caacd32 100644
--- a/src/modules/energy/HydrogenDaily.tsx
+++ b/src/modules/energy/HydrogenDaily.tsx
@@ -5,6 +5,7 @@ import { BarChart, Bar, XAxis, YAxis, ResponsiveContainer, Cell, Tooltip } from
 import TrendBadge from './TrendBadge';
 import { fetchHydrogenDaily } from './api';
 import type { CustomerType, DateQuickPick, HydrogenDailyRow } from './types';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 const QUICK_PICK_OPTIONS: Array<{ id: DateQuickPick; label: string }> = [
   { id: 'today',       label: '当天'     },
@@ -214,6 +215,7 @@ export default function HydrogenDaily() {
         })}
       </div>
       )}
+      <RotatingFooterHint />
     </div>
   );
 }
diff --git a/src/modules/energy/HydrogenOverview.tsx b/src/modules/energy/HydrogenOverview.tsx
index 3f2c963..8791ead 100644
--- a/src/modules/energy/HydrogenOverview.tsx
+++ b/src/modules/energy/HydrogenOverview.tsx
@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react';
 import { BarChart, Bar, XAxis, YAxis, ResponsiveContainer, Cell, PieChart, Pie, Tooltip, LabelList } from 'recharts';
 import { fetchHydrogenOverview, type HydrogenOverviewResponse } from './api';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 interface YAxisTickProps {
   x?: number;
@@ -29,15 +30,6 @@ const REGION_COLORS = [
   '#94a3b8',
 ];
 
-// 幽默动态提示词，每 4 秒轮换一条
-const FOOTER_HINTS = [
-  '更多统计维度接入中，欢迎您的建议 ~',
-  '下一个图表，可能就是您建议的那个',
-  '数据科学家正在深夜挖掘新维度…',
-  '想看哪个角度的数据？告诉我们一下嘛',
-  '维度灵感正在路上，钉一下产品同学也行',
-  '数字背后还有故事，等下一次上线揭晓',
-];
 
 export default function HydrogenOverview() {
   const [data, setData] = useState<HydrogenOverviewResponse | null>(null);
@@ -153,32 +145,6 @@ export default function HydrogenOverview() {
   );
 }
 
-function RotatingFooterHint() {
-  const [idx, setIdx] = useState(0);
-  useEffect(() => {
-    const t = setInterval(() => setIdx(i => (i + 1) % FOOTER_HINTS.length), 4000);
-    return () => clearInterval(t);
-  }, []);
-  return (
-    <div className="mt-1 flex items-center justify-center gap-1.5 text-[11px] text-slate-400 font-bold">
-      <span className="inline-block w-1.5 h-1.5 rounded-full bg-blue-400 animate-pulse" />
-      <span
-        key={idx}
-        className="transition-opacity duration-300"
-        style={{ animation: 'hintFade 0.5s ease' }}
-      >
-        {FOOTER_HINTS[idx]}
-      </span>
-      <style>{`
-        @keyframes hintFade {
-          from { opacity: 0; transform: translateY(2px); }
-          to   { opacity: 1; transform: translateY(0); }
-        }
-      `}</style>
-    </div>
-  );
-}
-
 function HydrogenOverviewSkeleton() {
   return (
     <div className="flex flex-col gap-3 animate-pulse">
diff --git a/src/modules/mileage/MileageModule.tsx b/src/modules/mileage/MileageModule.tsx
index 158c780..f5b1441 100644
--- a/src/modules/mileage/MileageModule.tsx
+++ b/src/modules/mileage/MileageModule.tsx
@@ -4,6 +4,7 @@ import { motion } from 'motion/react';
 import MonitoringView from './MonitoringView';
 import StatisticsView from './StatisticsView';
 import DailyReportView from './DailyReportView';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 export default function MileageModule() {
   const [activeSubTab, setActiveSubTab] = useState<'monitoring' | 'statistics' | 'report'>('monitoring');
@@ -52,6 +53,7 @@ export default function MileageModule() {
         ) : (
           <DailyReportView />
         )}
+        <RotatingFooterHint />
       </div>
     </div>
   );
diff --git a/src/modules/scheduling/SchedulingModule.tsx b/src/modules/scheduling/SchedulingModule.tsx
index 85e8528..68a7d69 100644
--- a/src/modules/scheduling/SchedulingModule.tsx
+++ b/src/modules/scheduling/SchedulingModule.tsx
@@ -8,6 +8,7 @@ import SuggestionDetail from './SuggestionDetail';
 import NotificationHistory from './NotificationHistory';
 import { exportSuggestionsCsv } from './csv-export';
 import Blur from '../../components/Blur';
+import RotatingFooterHint from '../../components/RotatingFooterHint';
 
 type TypeFilter = 'all' | 'qualified' | 'hopeless';
 
@@ -632,6 +633,7 @@ export default function SchedulingModule() {
           </div>
         )}
       </div>
+      <RotatingFooterHint className="pb-4" />
     </div>
   );
 }
diff --git a/src/server/index.ts b/src/server/index.ts
index a4a03fe..d521938 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -8,6 +8,7 @@ import mileageRouter from './routes/mileage/index.js';
 import schedulingRouter from './routes/scheduling/index.js';
 import energyRouter from './routes/energy/index.js';
 import eleRouter from './routes/ele/index.js';
+import feedbackRouter from './routes/feedback/index.js';
 import { ensureSchedulingTables } from './routes/scheduling/db-schema.js';
 import authRouter from './auth/login.js';
 import { authMiddleware } from './auth/middleware.js';
@@ -29,6 +30,7 @@ app.route('/api/mileage', mileageRouter);
 app.route('/api/scheduling', schedulingRouter);
 app.route('/api/energy', energyRouter);
 app.route('/api/ele', eleRouter);
+app.route('/api/feedback', feedbackRouter);
 
 app.get('/api/health', (c) => c.json({ status: 'ok', time: new Date().toISOString() }));
 
diff --git a/src/server/routes/feedback/index.ts b/src/server/routes/feedback/index.ts
new file mode 100644
index 0000000..e559bed
--- /dev/null
+++ b/src/server/routes/feedback/index.ts
@@ -0,0 +1,77 @@
+import { Hono } from 'hono';
+import type { ResultSetHeader, RowDataPacket } from 'mysql2';
+import pool from '../../db.js';
+import type { AuthUser } from '../../auth/types.js';
+
+const app = new Hono();
+
+const CREATE_TABLE_SQL = `
+CREATE TABLE IF NOT EXISTS bi_user_feedback (
+  id BIGINT AUTO_INCREMENT PRIMARY KEY,
+  type ENUM('dimension','bug','ux','other') NOT NULL DEFAULT 'other',
+  module VARCHAR(64) NULL,
+  content TEXT NOT NULL,
+  contact VARCHAR(200) NULL,
+  user_id VARCHAR(64) NULL,
+  user_name VARCHAR(128) NULL,
+  user_agent VARCHAR(512) NULL,
+  status ENUM('open','in_progress','done','rejected') NOT NULL DEFAULT 'open',
+  created_at DATETIME NOT NULL,
+  KEY idx_created_at (created_at),
+  KEY idx_type (type),
+  KEY idx_status (status)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+`;
+
+let ensured = false;
+async function ensureTable(): Promise<void> {
+  if (ensured) return;
+  await pool.query(CREATE_TABLE_SQL);
+  ensured = true;
+}
+
+const VALID_TYPES = new Set(['dimension', 'bug', 'ux', 'other']);
+
+app.post('/submit', async (c) => {
+  await ensureTable();
+  const body = await c.req.json().catch(() => ({})) as {
+    type?: string; module?: string | null; content?: string;
+    contact?: string | null; userAgent?: string;
+  };
+  const type = (body.type || '').trim();
+  const content = (body.content || '').trim();
+  if (!VALID_TYPES.has(type)) {
+    return c.json({ ok: false, message: '类型不合法' }, 400);
+  }
+  if (!content || content.length > 2000) {
+    return c.json({ ok: false, message: '内容长度需在 1-2000 字之间' }, 400);
+  }
+
+  const user = (c as { get?: (k: string) => unknown }).get?.('user') as AuthUser | undefined;
+  const moduleVal = (body.module || '').slice(0, 64) || null;
+  const contact = (body.contact || '').slice(0, 200) || null;
+  const userAgent = (body.userAgent || '').slice(0, 512) || null;
+
+  const [r] = await pool.query<ResultSetHeader>(
+    `INSERT INTO bi_user_feedback (type, module, content, contact, user_id, user_name, user_agent, created_at)
+     VALUES (?, ?, ?, ?, ?, ?, ?, NOW())`,
+    [type, moduleVal, content, contact, user?.userId || null, user?.userName || null, userAgent],
+  );
+  return c.json({ ok: true, id: r.insertId });
+});
+
+// GET /api/feedback/list — 简易列表（按时间倒序，最多 200 条）
+app.get('/list', async (c) => {
+  await ensureTable();
+  const limit = Math.min(200, Math.max(1, Number(c.req.query('limit')) || 50));
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT id, type, module, content, contact, user_name, status, created_at
+       FROM bi_user_feedback
+       ORDER BY created_at DESC
+       LIMIT ?`,
+    [limit],
+  );
+  return c.json({ items: rows });
+});
+
+export default app;