diff --git a/AGENTS.md b/AGENTS.md
index c581463..2d2b6a5 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -19,8 +19,8 @@ redirects.json ──────┘        (含生成的 assets/js/redirects.js
 
 构建后还有一步：`stage_markdown_copies()` 把 `cache/` 下每个 `.md` 复制到 `site/`
 同路径（如 `site/nmbot-telegram/mcp.md`），作为每页的 Markdown 版本，供
-`/llms.txt` 链接、“复制本文 Markdown”按钮、View-as-Markdown 菜单项与 AI
-打开菜单。
+`/llms.txt` 链接、“复制 Markdown”按钮、View-as-Markdown 菜单项与 AI 打开
+菜单。
 
 `generate()`（`src/nmteam_support/generator.py`）编排的完整链路：
 
diff --git a/README.md b/README.md
index e3263dc..63372f6 100644
--- a/README.md
+++ b/README.md
@@ -69,8 +69,8 @@ Markdown 中仍使用普通图片语法，构建工具会自动输出 WebP
     每个链接指向页面的 Markdown 版本。
 - 每页 Markdown 版本：`nmteam build` 时在每个页面旁生成同路径的 `.md` 文件
     （如 `/nmbot-telegram/mcp.md`）。
-- 页面顶部的文章操作区：**复制本文 Markdown** 直接复制当前页面原文；
-    **使用［品牌图标］打开本文章** 菜单提供 GitHub 源文件、Markdown 版本，
+- 页面顶部的文章操作区（首页不显示）：**复制 Markdown** 直接复制当前页面
+    原文；**使用［品牌图标］打开** 菜单提供 GitHub 源文件、Markdown 版本，
     以及 Perplexity、Grok、ChatGPT、Claude Web、Claude Desktop、
     Claude Code、OpenAI Codex、Cursor 八种 AI 打开方式。
 
@@ -83,9 +83,16 @@ Markdown 中仍使用普通图片语法，构建工具会自动输出 WebP
 ```bash
 uv run nmteam generate # 仅重新生成文档结构
 uv run nmteam clean    # 清理 cache/、generated/ 和 site/
+uv run nmteam serve    # 预览 site/（.md 以 text/plain; charset=utf-8 提供）
 uv run nmteam --help   # 显示完整命令帮助
 ```
 
+`nmteam serve` 默认监听 `127.0.0.1:8124`，可用 `--port` / `--bind`
+调整。与裸 `python -m http.server` 不同，它把 `.md` 文件的
+`Content-Type` 显式设为 `text/plain; charset=utf-8`（Python 3.13+ 的
+`mimetypes` 会把 `.md` 判为 `text/markdown`，部分客户端会下载而非内联
+显示），保证每页 Markdown 版本在任何浏览器中都能直接阅读。
+
 ## 平台启动器
 
 直接运行 `uv run nmteam` 是推荐方式。`scripts/` 也提供不包含业务逻辑的薄启动器；它们会自动定位仓库根目录并原样传递参数。
diff --git a/assets/js/ai-tools.js b/assets/js/ai-tools.js
index 705edef..68b6e1a 100644
--- a/assets/js/ai-tools.js
+++ b/assets/js/ai-tools.js
@@ -105,7 +105,7 @@
         button.querySelector(".ai-tools__copy-icon--success").hidden = !copied;
         button.querySelector(".ai-tools__copy-label").textContent = copied
             ? "已复制"
-            : "复制本文 Markdown";
+            : "复制 Markdown";
     }
 
     function wireCopy(button, md, availability) {
diff --git a/assets/styles/ai-tools.css b/assets/styles/ai-tools.css
index 34e7791..7d6580e 100644
--- a/assets/styles/ai-tools.css
+++ b/assets/styles/ai-tools.css
@@ -1,7 +1,7 @@
 /* Fumadocs-style page actions menu. */
 .ai-tools {
     position: relative;
-    z-index: 4;
+    z-index: 1;
     display: inline-flex;
     flex-wrap: wrap;
     align-items: center;
@@ -210,9 +210,40 @@
     height: 100%;
 }
 
+@media (max-width: 48em) {
+    .md-content__inner {
+        display: flex;
+        flex-direction: column;
+    }
+
+    .md-content__inner > h1 {
+        order: -1;
+    }
+
+    .md-content__inner > .ai-tools {
+        order: 0;
+        float: none;
+        flex-wrap: nowrap;
+        width: 100%;
+        justify-content: flex-start;
+        margin: 0 0 16px;
+    }
+
+    .ai-tools__copy,
+    .ai-tools__trigger {
+        flex: 0 1 auto;
+        background: transparent;
+        border-color: var(--md-default-fg-color--light);
+    }
+
+    .md-content__inner > :not(h1):not(.ai-tools) {
+        order: 1;
+    }
+}
+
 @media (max-width: 44.984375em) {
     .ai-tools {
-        flex-wrap: nowrap;
+        flex-wrap: wrap;
         gap: 6px;
         margin-right: 4px;
     }
diff --git a/assets/styles/base.css b/assets/styles/base.css
new file mode 100644
index 0000000..33766da
--- /dev/null
+++ b/assets/styles/base.css
@@ -0,0 +1,10 @@
+/* Global anchor-link smooth scrolling. */
+html {
+    scroll-behavior: smooth;
+}
+
+@media (prefers-reduced-motion: reduce) {
+    html {
+        scroll-behavior: auto;
+    }
+}
diff --git a/docs/nmbot-telegram/index.md b/docs/nmbot-telegram/index.md
index e574bff..5dee6c5 100644
--- a/docs/nmbot-telegram/index.md
+++ b/docs/nmbot-telegram/index.md
@@ -12,17 +12,11 @@ title: nmBot Telegram 帮助文档
 
 欢迎查阅由 nmTeam 官方和 nmBot 社区志愿者编写的 nmBot 官方帮助文档，请从页面导航中或通过搜索框查找您需要的内容。
 
-<center>
-<a href="https://t.me/nmnmfunbot" target="_blank">
-![开始使用 nmBot](/assets/images/nmbot/doc%20start%20telegram.png){ width="200" }
-</a>
-<a href="https://nmbot.nmnm.fun" target="_blank">
-![开始使用 nmBot](/assets/images/nmbot/doc%20start%20panel.png){ width="200" }
-</a>
-<a href="https://nmteam.xyz/products/overview/nmBot-Telegram" target="_blank">
-![开始使用 nmBot](/assets/images/nmbot/doc%20start%20intro.png){ width="200" }
-</a>
-</center>
+<div align="center" markdown="1">
+
+[![开始使用 nmBot](/assets/images/nmbot/doc%20start%20telegram.png){ width="200" }](https://t.me/nmnmfunbot) [![开始使用 nmBot](/assets/images/nmbot/doc%20start%20panel.png){ width="200" }](https://nmbot.nmnm.fun) [![开始使用 nmBot](/assets/images/nmbot/doc%20start%20intro.png){ width="200" }](https://nmteam.xyz/products/overview/nmBot-Telegram)
+
+</div>
 
 ## 了解 nmBot 最新动态
 
diff --git a/mkdocs-template.yml b/mkdocs-template.yml
index 6ea2ea3..e2e45a1 100644
--- a/mkdocs-template.yml
+++ b/mkdocs-template.yml
@@ -34,7 +34,7 @@ theme:
     - navigation.sections
     - toc.integrate
     - navigation.top
-extra_css: [assets/styles/docsList.css, assets/styles/plus.css, assets/styles/ai-tools.css]
+extra_css: [assets/styles/base.css, assets/styles/docsList.css, assets/styles/plus.css, assets/styles/ai-tools.css]
 extra_javascript: [assets/js/redirects.js, assets/js/ai-tools.js]
 docs_dir: generated
 
diff --git a/overrides/.icons/simple/grok.svg b/overrides/.icons/simple/grok.svg
new file mode 100644
index 0000000..b90e919
--- /dev/null
+++ b/overrides/.icons/simple/grok.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" fill-rule="evenodd"><path d="M9.27 15.29l7.978-5.897c.391-.29.95-.177 1.137.272.98 2.369.542 5.215-1.41 7.169-1.951 1.954-4.667 2.382-7.149 1.406l-2.711 1.257c3.889 2.661 8.611 2.003 11.562-.953 2.341-2.344 3.066-5.539 2.388-8.42l.006.007c-.983-4.232.242-5.924 2.75-9.383.06-.082.12-.164.179-.248l-3.301 3.305v-.01L9.267 15.292M7.623 16.723c-2.792-2.67-2.31-6.801.071-9.184 1.761-1.763 4.647-2.483 7.166-1.425l2.705-1.25a7.808 7.808 0 00-1.829-1A8.975 8.975 0 005.984 5.83c-2.533 2.536-3.33 6.436-1.962 9.764 1.022 2.487-.653 4.246-2.34 6.022-.599.63-1.199 1.259-1.682 1.925l7.62-6.815"/></svg>
diff --git a/overrides/partials/actions.html b/overrides/partials/actions.html
index 2a7b0f4..343ab41 100644
--- a/overrides/partials/actions.html
+++ b/overrides/partials/actions.html
@@ -37,7 +37,7 @@
   </a>
 {%- endmacro %}
 
-{% if page %}
+{% if page and page.url %}
   {% set source_url = "https://github.com/nm-Team/Support/blob/main/docs/" ~ page.file.src_uri %}
   <div
     class="ai-tools"
@@ -47,7 +47,7 @@
     <button class="ai-tools__copy" type="button">
       <span class="ai-tools__copy-icon ai-tools__copy-icon--idle" aria-hidden="true">{% include ".icons/material/content-copy.svg" %}</span>
       <span class="ai-tools__copy-icon ai-tools__copy-icon--success" aria-hidden="true" hidden>{% include ".icons/material/check.svg" %}</span>
-      <span class="ai-tools__copy-label" aria-live="polite">复制本文 Markdown</span>
+      <span class="ai-tools__copy-label" aria-live="polite">复制 Markdown</span>
     </button>
     <button
       class="ai-tools__trigger"
@@ -62,14 +62,14 @@
         <span class="ai-tools__provider-icon">{% include ".icons/ai/claude.svg" %}</span>
         <span class="ai-tools__provider-icon">{% include ".icons/ai/codex.svg" %}</span>
       </span>
-      <span>打开本文章</span>
+      <span>打开</span>
       <span class="ai-tools__chevron">{% include ".icons/material/chevron-down.svg" %}</span>
     </button>
     <div class="ai-tools__menu" id="ai-tools-menu" role="menu" hidden>
       {{ ai_action("Open in GitHub", "fontawesome/brands/github.svg", "github", source_url) }}
       {{ ai_action("View as Markdown", "material/language-markdown.svg", "markdown") }}
       {{ ai_action("Open in Perplexity", "ai/perplexity.svg", "perplexity", group_start=true, brand=true) }}
-      {{ ai_action("Open in Grok", "simple/x.svg", "grok") }}
+      {{ ai_action("Open in Grok", "simple/grok.svg", "grok") }}
       {{ ai_action("Open in ChatGPT", "ai/openai.svg", "chatgpt", brand=true) }}
       {{ ai_action("Open in Claude Web", "ai/claude.svg", "claude", brand=true) }}
       {{ ai_action("Open in Claude Desktop", "ai/claude.svg", "claude-desktop", group_start=true, brand=true) }}
diff --git a/src/nmteam_support/cli.py b/src/nmteam_support/cli.py
index 37d0e1f..e832c12 100644
--- a/src/nmteam_support/cli.py
+++ b/src/nmteam_support/cli.py
@@ -21,6 +21,7 @@
     read_redirects,
     write_redirects,
 )
+from nmteam_support.serve import DEFAULT_BIND, DEFAULT_PORT, serve_site
 
 app = typer.Typer(invoke_without_command=True)
 redirects_app = typer.Typer(no_args_is_help=True)
@@ -182,6 +183,19 @@ def install_command() -> None:
     _exit_on_error(cmd_install())
 
 
+@app.command("serve")
+def serve_command(
+    port: int = typer.Option(DEFAULT_PORT, "--port", "-p", help="TCP port to listen on."),
+    bind: str = typer.Option(DEFAULT_BIND, "--bind", "-b", help="Address to bind to."),
+) -> None:
+    """Serve the built site; Markdown is served as text/plain (UTF-8)."""
+    site_dir = default_options().mkdocs_yml_path.parent / "site"
+    if not site_dir.is_dir():
+        typer.echo("site/ 不存在，请先运行 `nmteam build`。", err=True)
+        raise typer.Exit(code=1)
+    serve_site(site_dir, port, bind)
+
+
 @app.command("check")
 def check_command() -> None:
     """Run linting, tests, formatting checks, and a strict build."""
diff --git a/src/nmteam_support/serve.py b/src/nmteam_support/serve.py
new file mode 100644
index 0000000..bfd9ac0
--- /dev/null
+++ b/src/nmteam_support/serve.py
@@ -0,0 +1,49 @@
+"""Static file server that serves Markdown as ``text/plain; charset=utf-8``.
+
+Standard-library only, so ``nmteam serve`` works on every platform without
+extra dependencies. The MIME override matters because Python's ``mimetypes``
+module maps ``.md`` to ``text/markdown`` on 3.13+, which some browsers and
+clients download or render inconsistently; ``text/plain`` with an explicit
+UTF-8 charset is the most interoperable way to expose the per-page Markdown
+copies staged into ``site/``.
+"""
+
+from __future__ import annotations
+
+from functools import partial
+from http.server import SimpleHTTPRequestHandler, ThreadingHTTPServer
+from pathlib import Path
+from typing import ClassVar
+
+DEFAULT_PORT = 8124
+DEFAULT_BIND = "127.0.0.1"
+
+
+class MarkdownPlainHandler(SimpleHTTPRequestHandler):
+    """Serve ``.md``/``.markdown`` files as plain UTF-8 text."""
+
+    extensions_map: ClassVar[dict[str, str]] = {
+        **SimpleHTTPRequestHandler.extensions_map,
+        ".md": "text/plain; charset=utf-8",
+        ".markdown": "text/plain; charset=utf-8",
+    }
+
+
+def create_server(
+    directory: Path, port: int = DEFAULT_PORT, bind: str = DEFAULT_BIND
+) -> ThreadingHTTPServer:
+    """Build a threaded HTTP server rooted at ``directory``."""
+    resolved = directory.resolve()
+    handler = partial(MarkdownPlainHandler, directory=str(resolved))
+    return ThreadingHTTPServer((bind, port), handler)
+
+
+def serve_site(directory: Path, port: int = DEFAULT_PORT, bind: str = DEFAULT_BIND) -> None:
+    """Serve ``directory`` statically until interrupted."""
+    server = create_server(directory, port, bind)
+    host, bound_port = server.server_address
+    print(f"Serving {directory.resolve()} at http://{host}:{bound_port}")
+    try:
+        server.serve_forever()
+    finally:
+        server.server_close()
diff --git a/tests/test_cli.py b/tests/test_cli.py
index a65d4b6..7a88993 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -83,6 +83,33 @@ def test_redirects_list_displays_existing_rules(tmp_path, monkeypatch):
     assert "/old/ -> /new/" in result.stdout
 
 
+def test_serve_command_serves_site_with_defaults(tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    (tmp_path / "site").mkdir()
+    captured = {}
+    monkeypatch.setattr(
+        cli,
+        "serve_site",
+        lambda directory, port, bind: captured.update(directory=directory, port=port, bind=bind),
+    )
+
+    result = runner.invoke(cli.app, ["serve"])
+
+    assert result.exit_code == 0
+    assert captured["directory"] == tmp_path / "site"
+    assert captured["port"] == 8124
+    assert captured["bind"] == "127.0.0.1"
+
+
+def test_serve_command_rejects_missing_site(tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+
+    result = runner.invoke(cli.app, ["serve"])
+
+    assert result.exit_code != 0
+    assert "site/ 不存在" in result.stderr
+
+
 def test_redirects_remove_deletes_existing_rule(tmp_path, monkeypatch):
     monkeypatch.chdir(tmp_path)
     (tmp_path / "redirects.json").write_text(
diff --git a/tests/test_serve.py b/tests/test_serve.py
new file mode 100644
index 0000000..d322952
--- /dev/null
+++ b/tests/test_serve.py
@@ -0,0 +1,51 @@
+"""Static serve tests: Markdown is served as text/plain with UTF-8 charset."""
+
+import threading
+import urllib.request
+from unittest.mock import Mock
+
+import pytest
+
+import nmteam_support.serve as serve
+
+
+def _base_url(server) -> str:
+    host, port = server.server_address
+    return f"http://{host}:{port}"
+
+
+def test_markdown_served_as_text_plain_utf8(tmp_path):
+    (tmp_path / "page.md").write_text("# 标题\n", encoding="utf-8", newline="\n")
+    (tmp_path / "index.html").write_text("<h1>hi</h1>", encoding="utf-8")
+
+    server = serve.create_server(tmp_path, port=0)
+    thread = threading.Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+    try:
+        base = _base_url(server)
+        with urllib.request.urlopen(f"{base}/page.md", timeout=5) as response:
+            assert response.headers.get_content_type() == "text/plain"
+            assert response.headers.get_content_charset() == "utf-8"
+            assert response.read().decode("utf-8") == "# 标题\n"
+        with urllib.request.urlopen(f"{base}/index.html", timeout=5) as response:
+            assert response.headers.get_content_type() == "text/html"
+    finally:
+        server.shutdown()
+        server.server_close()
+
+
+def test_markdown_extension_map_excludes_text_markdown():
+    for ext in (".md", ".markdown"):
+        assert serve.MarkdownPlainHandler.extensions_map[ext] == ("text/plain; charset=utf-8")
+    assert "text/markdown" not in serve.MarkdownPlainHandler.extensions_map.values()
+
+
+def test_serve_site_closes_server_and_propagates_interrupt(tmp_path, monkeypatch):
+    server = Mock(server_address=("127.0.0.1", 8124))
+    server.serve_forever.side_effect = KeyboardInterrupt
+    monkeypatch.setattr(serve, "create_server", lambda *_args: server)
+
+    with pytest.raises(KeyboardInterrupt):
+        serve.serve_site(tmp_path)
+
+    server.server_close.assert_called_once_with()