v1.2.7 输入框多行自适应：超一行自动增高，最多4行(90px)内部滚动；Enter发送/Shift+Enter换行；发送后高度复原

v1.2.6 对话操作增强：回答块下方复制/重新生成图标按钮+完成时间(HH:MM)；对话工具栏分享(弹窗预览一键复制全文)与清空从头对话
v1.2.5 管理后台表格点击表头排序：任意字段升序/降序切换(▲▼指示)，后端字段白名单校验防注入
2026-08-17 23:40:33 +08:00 · 2026-08-17 23:29:02 +08:00 · 2026-08-17 23:16:05 +08:00 · 2026-08-17 21:40:41 +08:00 · 2026-08-17 21:38:29 +08:00
8 changed files with 313 additions and 34 deletions
@@ -53,6 +53,7 @@ DEFAULT_CONFIG = {
    "footer_text": "NBA球迷大全 · 数据为模拟演示数据（2025-26 赛季） · LLM: DeepSeek · 向量: Chroma + bge-large-zh",
    "admin_password": "admin123",
    "entity_mark_mode": "first",   # 实体标记：first=只标记首次出现 / all=全部标记
+    "suggestion_count": "3",       # 对话中底部快捷问题预测个数（默认3）
 }

 SEARCHABLE = {  # 每个表可搜索的 TEXT 字段
@@ -190,7 +191,15 @@ def list_rows(table):
    page = max(1, int(request.args.get("page", 1)))
    size = min(100, max(1, int(request.args.get("size", 20))))
    q = (request.args.get("q") or "").strip()
+    # 排序：字段白名单校验（防注入），默认 id 降序
    cols = _columns(table)
+    valid_fields = {c["name"] for c in cols}
+    sort = request.args.get("sort", "") or "id"
+    if sort not in valid_fields:
+        sort = "id"
+    order = (request.args.get("order", "") or "desc").lower()
+    if order not in ("asc", "desc"):
+        order = "desc"
    where, args = "", []
    if q:
        fields = SEARCHABLE.get(table) or ()
@@ -199,10 +208,11 @@ def list_rows(table):
            where = "WHERE " + " OR ".join(f"{f} LIKE ? ESCAPE '\\'" for f in fields)
            args = [like] * len(fields)
    total = query_one(f"SELECT COUNT(*) AS c FROM {table} {where}", args)["c"]
-    rows = query(f"SELECT * FROM {table} {where} ORDER BY id DESC LIMIT ? OFFSET ?",
+    rows = query(f"SELECT * FROM {table} {where} ORDER BY {sort} {order.upper()}, id {order.upper()} LIMIT ? OFFSET ?",
                 args + [size, (page - 1) * size])
    return jsonify({"table": table, "cn": TABLES[table], "columns": cols,
-                    "total": total, "page": page, "size": size, "rows": rows})
+                    "total": total, "page": page, "size": size, "rows": rows,
+                    "sort": sort, "order": order})


 def get_row(table, rid):
@@ -64,6 +64,22 @@ def boot():
    return jsonify(chat.boot_info())


+@app.route("/api/suggest", methods=["POST"])
+def api_suggest():
+    """基于对话历史预测底部快捷问题（个数后台可配，默认3）"""
+    body = request.get_json(force=True, silent=True) or {}
+    history = body.get("history") or []
+    try:
+        n = int(admin_mod.get_config().get("suggestion_count", "3") or "3")
+    except Exception:
+        n = 3
+    try:
+        return jsonify({"suggestions": chat.predict_suggestions(history, n)})
+    except Exception as e:
+        log.exception("suggest error")
+        return jsonify({"suggestions": chat.suggest_questions()[:n]}), 200
+
+
 # ------------------------------------------------------------------ 对话
@app.route("/api/chat", methods=["POST"])
 def api_chat():
@@ -272,3 +272,53 @@ def boot_info():
        "suggestions": suggest_questions(),
        "footer_text": cfg.get("footer_text", "NBA球迷大全 · 数据为模拟演示数据（2025-26 赛季）"),
    }
+
+
+def _parse_json_array(text):
+    """从 LLM 输出中解析 JSON 数组（容错：直接 JSON / 提取中括号段）"""
+    if not text:
+        return []
+    text = text.strip()
+    try:
+        arr = json.loads(text)
+        if isinstance(arr, list):
+            return arr
+    except Exception:
+        pass
+    m = re.search(r"\[.*\]", text, re.S)
+    if m:
+        try:
+            arr = json.loads(m.group(0))
+            if isinstance(arr, list):
+                return arr
+        except Exception:
+            pass
+    return []
+
+
+def predict_suggestions(history=None, n=3):
+    """基于对话历史，让大模型预测用户接下来最可能追问的 n 个问题（底部快捷语句）。
+    每个问题不超过 30 字；LLM 异常时回退到默认快捷问题。"""
+    n = max(1, min(int(n or 3), 6))
+    history = history or []
+    msgs = [{"role": "system", "content": (
+        f"你是「NBA球迷大全」智能助手。根据对话历史，站在用户角度预测他接下来最可能追问的{n}个问题。\n"
+        "要求：\n"
+        "1. 每个问题不超过30个汉字，简洁口语化\n"
+        "2. 必须是用户会直接发送的提问，不要编号、不要引号、不要解释\n"
+        "3. 只输出JSON数组，例如：[\"库里今天拿了几分\",\"湖人下一场什么时候\"]，不要输出任何其他内容")}]
+    for h in history[-6:]:
+        msgs.append({"role": "user", "content": h.get("user", "")})
+        if h.get("assistant"):
+            msgs.append({"role": "assistant", "content": str(h["assistant"])[:600]})
+    if len(msgs) == 1:
+        return DEFAULT_SUGGESTIONS[:n]
+    try:
+        resp = llm.chat(msgs, temperature=0.9, max_tokens=200)
+        arr = _parse_json_array(llm.parse_content(resp))
+        out = [str(x).strip()[:30] for x in arr if str(x).strip()][:n]
+        if out:
+            return out
+    except Exception as e:
+        log.warning("快捷问题预测失败(%s)，回退默认", e)
+    return DEFAULT_SUGGESTIONS[:n]
@@ -46,6 +46,9 @@ body { background:var(--bg); color:var(--txt); font-family:"PingFang SC","Micros
 table { width:100%; border-collapse:collapse; }
 th, td { padding:9px 11px; text-align:left; font-size:13px; border-bottom:1px solid var(--line); white-space:nowrap; max-width:260px; overflow:hidden; text-overflow:ellipsis; }
 th { background:var(--bg2); color:var(--sub); font-weight:600; font-size:12px; position:sticky; top:0; }
+th.sortable { cursor:pointer; user-select:none; transition:.15s; }
+th.sortable:hover { color:var(--orange2); }
+th.sort-active { color:var(--orange2); }
 tr:hover td { background:rgba(249,115,22,.05); }
 td.num { text-align:center; }
 .row-ops { display:flex; gap:6px; }
@@ -157,6 +160,10 @@ td.num { text-align:center; }
          <textarea id="cfg-suggestions" style="min-height:160px"></textarea>
          <div class="tip">💡 一行一个问题。保存后刷新前台页面即可看到新的快捷问题。</div>
        </div>
+        <div class="row2">
+          <div><label>对话中底部快捷问题预测个数（默认3，范围1-6）</label><input type="number" id="cfg-suggestion_count" min="1" max="6">
+          <div class="tip">对话进行中，大模型根据上下文预测用户可能追问的问题数量（每个≤30字）</div></div>
+        </div>
        <div class="row2">
          <div><label>管理员密码（留空则不修改）</label><input type="password" id="cfg-admin_password" placeholder="••••••"></div>
          <div><label>实体标记模式</label><select id="cfg-entity_mark_mode">
@@ -4,7 +4,7 @@ const $$ = (s) => [...document.querySelectorAll(s)];
 const esc = (s) => String(s ?? "").replace(/[&<>"']/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" }[c]));

 let TOKEN = localStorage.getItem("nba_admin_token") || "";
-let CUR = { table: "", page: 1, q: "" };
+let CUR = { table: "", page: 1, q: "", sort: "id", order: "desc" };
 let LOOKUPS = {};   // teams/players/leagues/sports → {id: name}

 /* 字段中文名 */
@@ -79,7 +79,7 @@ function switchPage(p) {
  $("#page-config").classList.toggle("hidden", p !== "config");
  if (p === "stats") loadStats();
  else if (p === "config") loadConfig();
-  else { CUR = { table: p, page: 1, q: "" }; $("#tbl-search").value = ""; loadTable(); }
+  else { CUR = { table: p, page: 1, q: "", sort: "id", order: "desc" }; $("#tbl-search").value = ""; loadTable(); }
 }

 /* ================= 仪表盘 ================= */
@@ -108,16 +108,20 @@ async function loadLookups() {

 async function loadTable() {
  $("#table-title").textContent = TITLE_CN[CUR.table] || CUR.table;
-  const d = await api(`/api/admin/${CUR.table}?page=${CUR.page}&size=20&q=${encodeURIComponent(CUR.q)}`);
+  const d = await api(`/api/admin/${CUR.table}?page=${CUR.page}&size=20&q=${encodeURIComponent(CUR.q)}&sort=${encodeURIComponent(CUR.sort)}&order=${CUR.order}`);
  const cols = d.columns.filter((c) => c.name !== "created_at");
  const rows = d.rows;
  if (!Object.keys(LOOKUPS).length) await loadLookups().catch(() => {});
-  const thead = `<tr>${cols.map((c) => `<th>${esc(FIELD_CN[CUR.table]?.[c.name] || c.name)}</th>`).join("")}<th>操作</th></tr>`;
+  const thead = `<tr>${cols.map((c) => {
+    const active = CUR.sort === c.name;
+    const arrow = active ? (CUR.order === "asc" ? " ▲" : " ▼") : "";
+    return `<th class="sortable ${active ? "sort-active" : ""}" data-sort="${c.name}" title="点击排序">${esc(FIELD_CN[CUR.table]?.[c.name] || c.name)}${arrow}</th>`;
+  }).join("")}<th>操作</th></tr>`;
  const tbody = rows.map((r) => {
    const tds = cols.map((c) => {
      let v = r[c.name];
      if (v === null || v === undefined) v = "";
-      if (c.name === "id") v = `<span class="badge">#${v}</span>`;
+      if (c.name === "id") v = v;  // ID 列纯数值显示
      else if (["team_id", "home_team_id", "away_team_id"].includes(c.name)) v = (LOOKUPS.teams || {})[v] || v;
      else if (c.name === "player_id") v = (LOOKUPS.players || {})[v] || v;
      else if (c.name === "league_id") v = (LOOKUPS.leagues || {})[v] || v;
@@ -141,6 +145,17 @@ $("#tbl-search-btn").addEventListener("click", () => { CUR.q = $("#tbl-search").
 $("#tbl-search").addEventListener("keydown", (e) => { if (e.key === "Enter") $("#tbl-search-btn").click(); });
 $("#tbl-add").addEventListener("click", () => openEdit(CUR.table, null));

+/* 表头点击排序：首次点击升序，再点切降序，循环 */
+$("#tbl-wrap").addEventListener("click", (e) => {
+  const th = e.target.closest("th[data-sort]");
+  if (!th) return;
+  const f = th.dataset.sort;
+  if (CUR.sort === f) CUR.order = CUR.order === "asc" ? "desc" : "asc";
+  else { CUR.sort = f; CUR.order = "asc"; }
+  CUR.page = 1;
+  loadTable();
+});
+
 /* ================= 编辑弹窗 ================= */
 let EDIT = { table: "", id: null };

@@ -208,6 +223,7 @@ async function loadConfig() {
  $("#cfg-footer_text").value = d.footer_text || "";
  $("#cfg-admin_password").value = "";
  $("#cfg-entity_mark_mode").value = d.entity_mark_mode === "all" ? "all" : "first";
+  $("#cfg-suggestion_count").value = d.suggestion_count || "3";
  try { $("#cfg-suggestions").value = JSON.parse(d.suggestions || "[]").join("\n"); }
  catch (e) { $("#cfg-suggestions").value = ""; }
  $("#cfg-msg").textContent = "";
@@ -224,6 +240,7 @@ $("#cfg-save").addEventListener("click", async () => {
  const pw = $("#cfg-admin_password").value;
  if (pw) payload.admin_password = pw;
  payload.entity_mark_mode = $("#cfg-entity_mark_mode").value;
+  payload.suggestion_count = String(Math.min(6, Math.max(1, parseInt($("#cfg-suggestion_count").value || "3"))));
  try {
    await api("/api/admin/config", { method: "PUT", body: JSON.stringify(payload) });
    $("#cfg-msg").textContent = "✅ 保存成功，前台刷新后生效";
@@ -6,6 +6,36 @@ const esc = (s) => String(s ?? "").replace(/[&<>"']/g, (c) => ({ "&": "&amp;", "
 const chatHistory = [];
 let chatBusy = false;

+/* 简洁版当前时间 HH:MM */
+function nowTime() {
+  const d = new Date();
+  return `${String(d.getHours()).padStart(2, "0")}:${String(d.getMinutes()).padStart(2, "0")}`;
+}
+
+/* 轻提示 */
+function toast(msg) {
+  let t = document.getElementById("toast");
+  if (!t) { t = document.createElement("div"); t.id = "toast"; document.body.appendChild(t); }
+  t.textContent = msg;
+  t.classList.add("show");
+  clearTimeout(t._timer);
+  t._timer = setTimeout(() => t.classList.remove("show"), 1800);
+}
+
+/* 复制文本（Clipboard API + 降级） */
+async function copyText(text) {
+  try {
+    await navigator.clipboard.writeText(text);
+  } catch (e) {
+    const ta = document.createElement("textarea");
+    ta.value = text; ta.style.position = "fixed"; ta.style.opacity = "0";
+    document.body.appendChild(ta); ta.select();
+    document.execCommand("copy");
+    ta.remove();
+  }
+  toast("✅ 已复制");
+}
+
 /* ================= Markdown 渲染（marked 本地库，先转义防 XSS） ================= */
 function md(text) {
  if (window.marked) {
@@ -61,10 +91,14 @@ function loadView(v) {
 }

 /* ================= 对话 ================= */
-function addMsg(role, html) {
+function addMsg(role, html, opts = {}) {
  const div = document.createElement("div");
  div.className = `msg ${role}`;
-  div.innerHTML = `<div class="avatar">${role === "user" ? "🧑" : "🤖"}</div><div class="bubble">${html}</div>`;
+  if (opts.idx !== undefined) div.dataset.idx = opts.idx;
+  const actions = role === "bot"
+    ? `<div class="msg-actions"><button class="act-btn" title="复制回答">📋</button><button class="act-btn" title="重新生成">🔄</button><span class="msg-time">${nowTime()}</span></div>`
+    : `<div class="msg-actions user-time"><span class="msg-time">${nowTime()}</span></div>`;
+  div.innerHTML = `<div class="avatar">${role === "user" ? "🧑" : "🤖"}</div><div class="msg-body"><div class="bubble">${html}</div>${actions}</div>`;
  $("#chat-list").appendChild(div);
  $("#chat-list").scrollTop = $("#chat-list").scrollHeight;
  return div;
@@ -72,7 +106,7 @@ function addMsg(role, html) {
 function showTyping() {
  const div = document.createElement("div");
  div.className = "msg bot";
-  div.innerHTML = `<div class="avatar">🤖</div><div class="bubble"><span class="typing"><i></i><i></i><i></i></span></div>`;
+  div.innerHTML = `<div class="avatar">🤖</div><div class="msg-body"><div class="bubble"><span class="typing"><i></i><i></i><i></i></span></div></div>`;
  $("#chat-list").appendChild(div);
  $("#chat-list").scrollTop = $("#chat-list").scrollHeight;
  return div;
@@ -90,6 +124,28 @@ function cardHtml(c) {
  return "";
 }

+/* 组装回答气泡 HTML（参考资讯 + markdown实体 + 卡片 + 来源） */
+function buildBotHtml(d) {
+  let html = "";
+  // 需求4：参考资讯（新闻/百科链接），默认折叠，位于回答块上方
+  if (d.news_refs && d.news_refs.length) {
+    html += `<details class="refs"><summary>📰 参考资讯（${d.news_refs.length}）</summary><ul>` +
+      d.news_refs.map((n) => `<li><a href="#" data-news="${n.id}">${esc(n.title)}</a>` +
+        (n.source ? `<span class="ref-src">${esc(n.source)}${n.publish_time ? " · " + esc(n.publish_time.slice(0, 10)) : ""}</span>` : "") + `</li>`).join("") +
+      `</ul></details>`;
+  }
+  // 需求3：markdown 渲染 + 需求5：实体特殊标记
+  html += `<div class="md">${renderMdWithEntities(d.reply, d.entities)}</div>`;
+  // 需求5：快速查看入口卡片
+  if (d.cards && d.cards.length) {
+    html += `<div class="entity-cards">${d.cards.map(cardHtml).join("")}</div>`;
+  }
+  if (d.sources && d.sources.length) {
+    html += "<div class='src-line'>" + d.sources.map((s) => `<span class="src-tag">来源：${esc(s.tool)}</span>`).join("") + "</div>";
+  }
+  return html;
+}
+
 async function sendChat(text) {
  if (chatBusy) return;
  chatBusy = true;
@@ -102,26 +158,21 @@ async function sendChat(text) {
    const d = await r.json();
    typing.remove();
    if (d.error) { addMsg("bot", `⚠️ ${esc(d.error)}`); return; }
-    let html = "";
-    // 需求4：参考资讯（新闻/百科链接），默认折叠，位于回答块上方
-    if (d.news_refs && d.news_refs.length) {
-      html += `<details class="refs"><summary>📰 参考资讯（${d.news_refs.length}）</summary><ul>` +
-        d.news_refs.map((n) => `<li><a href="#" data-news="${n.id}">${esc(n.title)}</a>` +
-          (n.source ? `<span class="ref-src">${esc(n.source)}${n.publish_time ? " · " + esc(n.publish_time.slice(0, 10)) : ""}</span>` : "") + `</li>`).join("") +
-        `</ul></details>`;
-    }
-    // 需求3：markdown 渲染 + 需求5：实体特殊标记
-    html += `<div class="md">${renderMdWithEntities(d.reply, d.entities)}</div>`;
-    // 需求5：快速查看入口卡片
-    if (d.cards && d.cards.length) {
-      html += `<div class="entity-cards">${d.cards.map(cardHtml).join("")}</div>`;
-    }
-    if (d.sources && d.sources.length) {
-      html += "<div class='src-line'>" + d.sources.map((s) => `<span class="src-tag">来源：${esc(s.tool)}</span>`).join("") + "</div>";
-    }
-    addMsg("bot", html);
    chatHistory.push({ user: text, assistant: d.reply });
-    if (chatHistory.length > 20) chatHistory.splice(0, chatHistory.length - 20);
+    const idx = chatHistory.length - 1;
+    addMsg("bot", buildBotHtml(d), { idx });
+    if (chatHistory.length > 20) {
+      const removed = chatHistory.length - 20;
+      chatHistory.splice(0, removed);
+      document.querySelectorAll("#chat-list .msg[data-idx]").forEach((m) => {
+        const i = parseInt(m.dataset.idx);
+        if (i < removed) m.remove();
+        else m.dataset.idx = i - removed;
+      });
+    }
+    // 大模型预测下一轮快捷问题（异步刷新底部 chips）
+    const mark = chatHistory.length;
+    refreshChips(mark);
  } catch (e) {
    typing.remove();
    addMsg("bot", "⚠️ 网络异常，请稍后再试。");
@@ -130,17 +181,124 @@ async function sendChat(text) {
    $("#send-btn").disabled = false;
  }
 }
-$("#send-btn").addEventListener("click", () => { const v = $("#chat-input").value.trim(); if (v) { $("#chat-input").value = ""; sendChat(v); } });
-$("#chat-input").addEventListener("keydown", (e) => { if (e.key === "Enter") $("#send-btn").click(); });
+$("#send-btn").addEventListener("click", () => { const v = $("#chat-input").value.trim(); if (v) { $("#chat-input").value = ""; autoResizeInput(); sendChat(v); } });
+
+/* 输入框多行自适应：超一行自动增高，最多 4 行（约90px）；Enter 发送，Shift+Enter 换行 */
+const chatInput = $("#chat-input");
+const INPUT_MAX_H = 90;
+function autoResizeInput() {
+  chatInput.style.height = "auto";
+  chatInput.style.height = Math.min(chatInput.scrollHeight, INPUT_MAX_H) + "px";
+}
+chatInput.addEventListener("input", autoResizeInput);
+chatInput.addEventListener("keydown", (e) => {
+  if (e.key === "Enter" && !e.shiftKey) {
+    e.preventDefault();
+    $("#send-btn").click();
+  }
+});
+
+/* 复制当前回答（纯文本） */
+function copyMsg(btn) {
+  const bubble = btn.closest(".msg").querySelector(".bubble");
+  copyText(bubble.innerText.trim());
+}
+
+/* 重新生成：以该轮之前的上下文重新提问，替换本条回答，截断后续对话 */
+async function regenerate(btn) {
+  const msgEl = btn.closest(".msg");
+  const idx = parseInt(msgEl.dataset.idx);
+  if (isNaN(idx) || chatBusy) return;
+  if (idx >= chatHistory.length) return;
+  // 截断：删除该条之后的对话（上下文已变）
+  chatHistory.splice(idx + 1);
+  document.querySelectorAll("#chat-list .msg[data-idx]").forEach((m) => {
+    if (parseInt(m.dataset.idx) > idx) m.remove();
+  });
+  const userText = chatHistory[idx].user;
+  const body = msgEl.querySelector(".msg-body");
+  const bubble = msgEl.querySelector(".bubble");
+  bubble.innerHTML = `<span class="typing"><i></i><i></i><i></i></span>`;
+  msgEl.querySelector(".msg-actions")?.remove();
+  chatBusy = true;
+  try {
+    const r = await fetch("/api/chat", { method: "POST", headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ message: userText, history: chatHistory.slice(0, idx).map((h) => ({ user: h.user, assistant: h.assistant })) }) });
+    const d = await r.json();
+    if (d.error) { bubble.innerHTML = `⚠️ ${esc(d.error)}`; return; }
+    bubble.innerHTML = buildBotHtml(d);
+    const actions = document.createElement("div");
+    actions.className = "msg-actions";
+    actions.innerHTML = `<button class="act-btn" title="复制回答">📋</button><button class="act-btn" title="重新生成">🔄</button><span class="msg-time">${nowTime()}</span>`;
+    body.appendChild(actions);
+    chatHistory[idx] = { user: userText, assistant: d.reply };
+    refreshChips(chatHistory.length);
+  } catch (e) {
+    bubble.innerHTML = "⚠️ 网络异常，请稍后再试。";
+  } finally {
+    chatBusy = false;
+  }
+}
+
+/* 分享：弹窗展示对话全文 + 一键复制 */
+function shareChat() {
+  if (!chatHistory.length) { toast("还没有对话内容"); return; }
+  const text = chatHistory.map((h) => `🧑 ${h.user}\n🤖 ${h.assistant}`).join("\n\n");
+  openModal(`
+    <h2>🔗 分享对话</h2>
+    <div class="en">共 ${chatHistory.length} 轮 · 复制后粘贴到任意聊天或文档</div>
+    <textarea readonly class="share-box" style="width:100%;height:280px;margin-top:10px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;color:var(--txt);font-size:13px;line-height:1.7;resize:vertical">${esc(text)}</textarea>
+    <div style="margin-top:12px;text-align:right"><button class="btn" onclick="copyShare()">📋 复制全文</button></div>
+  `);
+}
+function copyShare() {
+  const ta = document.querySelector(".share-box");
+  if (ta) copyText(ta.value);
+}
+
+/* 清空对话从头开始 */
+function clearChat() {
+  if (!chatHistory.length) { toast("对话已经是空的"); return; }
+  if (!confirm("确定清空当前对话吗？将从头开始。")) return;
+  chatHistory.length = 0;
+  const list = $("#chat-list");
+  const welcome = document.getElementById("welcome-msg");
+  const w = welcome ? welcome.outerHTML : "";
+  list.innerHTML = w;
+  loadBoot();
+  toast("🗑️ 对话已清空");
+}
+$("#share-btn").addEventListener("click", shareChat);
+$("#clear-btn").addEventListener("click", clearChat);

 /* 快捷问题：点击 → 自动填入输入框并自动提交（需求2） */
 function askQuick(q) {
  $("#chat-input").value = q;
+  autoResizeInput();
  sendChat(q);
 }

-/* 聊天区事件委托：快捷语句 / 实体标记 / 新闻链接 / 卡片 */
+/* 底部快捷问题：对话进行中由大模型预测用户可能追问的问题（异步刷新） */
+async function refreshChips(mark) {
+  try {
+    const r = await fetch("/api/suggest", { method: "POST", headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ history: chatHistory.slice(-6) }) });
+    const d = await r.json();
+    if (!d.suggestions || !d.suggestions.length) return;
+    if (mark !== chatHistory.length) return;   // 期间用户又发了新消息 → 丢弃过期预测
+    $("#chips").innerHTML = d.suggestions.map((q) => `<button>${esc(q)}</button>`).join("");
+    $$("#chips button").forEach((b) => b.addEventListener("click", () => askQuick(b.textContent)));
+  } catch (e) {}
+}
+
+/* 聊天区事件委托：快捷语句 / 操作按钮(复制·重新生成) / 实体标记 / 新闻链接 / 卡片 */
 $("#chat-list").addEventListener("click", (e) => {
+  const act = e.target.closest(".act-btn");
+  if (act) {
+    if (act.title.includes("复制")) copyMsg(act);
+    else if (act.title.includes("重新生成")) regenerate(act);
+    return;
+  }
  const q = e.target.closest(".quick-q");
  if (q) { e.preventDefault(); askQuick(q.textContent); return; }
  const ent = e.target.closest(".entity, .ecard");
@@ -31,6 +31,13 @@
  <!-- ================= 对话 ================= -->
  <section id="view-chat" class="view active">
    <div class="chat-wrap">
+      <div class="chat-toolbar">
+        <span class="ct-title">💬 对话</span>
+        <div>
+          <button class="tool-btn" id="share-btn" title="分享对话">🔗 分享</button>
+          <button class="tool-btn" id="clear-btn" title="清空对话从头开始">🗑️ 清空</button>
+        </div>
+      </div>
      <div id="chat-list" class="chat-list">
        <div class="msg bot" id="welcome-msg">
          <div class="avatar">🤖</div>
@@ -42,7 +49,7 @@
      </div>
      <div class="chips" id="chips"></div>
      <div class="input-bar">
-        <input id="chat-input" type="text" placeholder="输入问题，如：湖人最近比赛怎么样？" autocomplete="off">
+        <textarea id="chat-input" rows="1" placeholder="输入问题，如：湖人最近比赛怎么样？（Enter 发送，Shift+Enter 换行）" autocomplete="off"></textarea>
        <button id="send-btn">发送</button>
      </div>
    </div>
@@ -25,6 +25,18 @@ main { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 20px 16

 /* ---------- 对话 ---------- */
 .chat-wrap { display: flex; flex-direction: column; height: calc(100vh - 190px); min-height: 480px; }
+.chat-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; padding: 0 4px; }
+.ct-title { color: var(--sub); font-size: 13px; font-weight: 600; letter-spacing: 1px; }
+.tool-btn { background: var(--bg2); border: 1px solid var(--line); color: var(--sub); border-radius: 999px; padding: 5px 12px; font-size: 12.5px; cursor: pointer; margin-left: 6px; transition: .15s; }
+.tool-btn:hover { color: var(--orange2); border-color: var(--orange2); }
+.msg-body { flex: 1; min-width: 0; }
+.msg-actions { display: flex; align-items: center; gap: 2px; margin-top: 5px; padding-left: 4px; opacity: .8; }
+.msg.user .msg-actions { justify-content: flex-end; padding-left: 0; padding-right: 4px; }
+.act-btn { background: transparent; border: none; color: var(--sub); font-size: 13px; cursor: pointer; padding: 3px 6px; border-radius: 6px; line-height: 1; transition: .15s; }
+.act-btn:hover { color: var(--orange2); background: rgba(249,115,22,.12); }
+.msg-time { font-size: 11px; color: var(--sub); margin-left: 6px; }
+#toast { position: fixed; left: 50%; bottom: 100px; transform: translateX(-50%) translateY(12px); background: var(--bg2); border: 1px solid var(--line); color: var(--txt); padding: 9px 20px; border-radius: 999px; font-size: 13px; opacity: 0; pointer-events: none; transition: .25s; z-index: 300; box-shadow: 0 6px 24px rgba(0,0,0,.5); }
+#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
 .chat-list { flex: 1; overflow-y: auto; padding: 8px 4px 16px; display: flex; flex-direction: column; gap: 14px; scroll-behavior: smooth; }
 .msg { display: flex; gap: 10px; max-width: 88%; }
 .msg.user { align-self: flex-end; flex-direction: row-reverse; }
@@ -97,7 +109,9 @@ main { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 20px 16
 .chips button:hover { border-color: var(--orange2); color: var(--orange2); }

 .input-bar { display: flex; gap: 10px; background: var(--bg2); border: 1px solid var(--line); border-radius: 999px; padding: 8px 10px 8px 18px; }
-#chat-input { flex: 1; background: transparent; border: none; outline: none; color: var(--txt); font-size: 15px; }
+#chat-input { flex: 1; background: transparent; border: none; outline: none; color: var(--txt); font-size: 15px; line-height: 1.5; resize: none; overflow-y: auto; max-height: 90px; padding: 5px 0; font-family: inherit; }
+#chat-input::-webkit-scrollbar { width: 5px; }
+#chat-input::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }
 #send-btn { background: linear-gradient(135deg, #f97316, #ea580c); border: none; color: #fff; padding: 10px 24px; border-radius: 999px; cursor: pointer; font-size: 14px; font-weight: 600; }
 #send-btn:disabled { opacity: .5; cursor: wait; }
Author	SHA1	Message	Date
hz4th_coder	bac19202b7	v1.2.7 输入框多行自适应：超一行自动增高，最多4行(90px)内部滚动；Enter发送/Shift+Enter换行；发送后高度复原	2026-08-17 23:40:33 +08:00
hz4th_coder	8b7ab976d8	v1.2.6 对话操作增强：回答块下方复制/重新生成图标按钮+完成时间(HH:MM)；对话工具栏分享(弹窗预览一键复制全文)与清空从头对话	2026-08-17 23:29:02 +08:00
hz4th_coder	0a3b075644	v1.2.5 管理后台表格点击表头排序：任意字段升序/降序切换(▲▼指示)，后端字段白名单校验防注入	2026-08-17 23:16:05 +08:00
hz4th_coder	437e707893	v1.2.4 修复管理后台ID列显示HTML源码问题：改为纯数值展示	2026-08-17 21:40:41 +08:00
hz4th_coder	0ff0aff87b	v1.2.3 底部快捷问题AI预测：对话进行中由大模型预测用户可能追问的问题(每个≤30字)，个数后台可配(默认3，1-6)，异步刷新防串扰；初始与开场白一致	2026-08-17 21:38:29 +08:00