diff --git a/pdf-creator/SKILL.md b/pdf-creator/SKILL.md
index c369752..ff94255 100644
--- a/pdf-creator/SKILL.md
+++ b/pdf-creator/SKILL.md
@@ -12,6 +12,7 @@ Create professional PDF documents from markdown with proper Chinese font support
 Convert a single markdown file:
 
 ```bash
+cd ~/workspace/claude-code-skills/pdf-creator
 uv run --with weasyprint --with markdown scripts/md_to_pdf.py input.md output.pdf
 ```
 
@@ -21,14 +22,7 @@ Batch convert multiple files:
 uv run --with weasyprint --with markdown scripts/batch_convert.py *.md --output-dir ./pdfs
 ```
 
-## macOS Environment Setup
-
-If encountering library errors, set these environment variables first:
-
-```bash
-export DYLD_LIBRARY_PATH="/opt/homebrew/lib:$DYLD_LIBRARY_PATH"
-export PKG_CONFIG_PATH="/opt/homebrew/lib/pkgconfig:$PKG_CONFIG_PATH"
-```
+macOS ARM (Homebrew) 的 `DYLD_LIBRARY_PATH` 会自动检测配置，无需手动设置。
 
 ## Font Configuration
 
diff --git a/pdf-creator/scripts/batch_convert.py b/pdf-creator/scripts/batch_convert.py
index 9eaa37f..25765d5 100644
--- a/pdf-creator/scripts/batch_convert.py
+++ b/pdf-creator/scripts/batch_convert.py
@@ -15,6 +15,7 @@ import argparse
 import sys
 from pathlib import Path
 
+sys.path.insert(0, str(Path(__file__).parent))
 from md_to_pdf import markdown_to_pdf
 
 
diff --git a/pdf-creator/scripts/md_to_pdf.py b/pdf-creator/scripts/md_to_pdf.py
index 796bb75..cf79ea4 100644
--- a/pdf-creator/scripts/md_to_pdf.py
+++ b/pdf-creator/scripts/md_to_pdf.py
@@ -16,9 +16,20 @@ Requirements:
     export DYLD_LIBRARY_PATH="/opt/homebrew/lib:$DYLD_LIBRARY_PATH"
 """
 
+import os
+import platform
+import re
 import sys
 from pathlib import Path
 
+# Auto-configure library path on macOS ARM (Homebrew) — must be before weasyprint import
+if platform.system() == 'Darwin':
+    _homebrew_lib = '/opt/homebrew/lib'
+    if Path(_homebrew_lib).is_dir():
+        _cur = os.environ.get('DYLD_LIBRARY_PATH', '')
+        if _homebrew_lib not in _cur:
+            os.environ['DYLD_LIBRARY_PATH'] = f"{_homebrew_lib}:{_cur}" if _cur else _homebrew_lib
+
 import markdown
 from weasyprint import CSS, HTML
 
@@ -89,8 +100,8 @@ th, td {
     border: 1px solid #666;
     padding: 8px 6px;
     text-align: left;
-    word-wrap: break-word;
-    word-break: break-all;
+    overflow-wrap: break-word;
+    word-break: normal;
 }
 
 th {
@@ -134,6 +145,24 @@ blockquote {
 """
 
 
+def _ensure_list_spacing(text: str) -> str:
+    """Ensure blank lines before list items for proper markdown parsing.
+
+    The Python markdown library requires a blank line before a list when it
+    follows a paragraph. Without it, list items render as plain text.
+    """
+    lines = text.split('\n')
+    result = []
+    list_re = re.compile(r'^(\s*)([-*+]|\d+\.)\s')
+    for i, line in enumerate(lines):
+        if i > 0 and list_re.match(line):
+            prev = lines[i - 1]
+            if prev.strip() and not list_re.match(prev):
+                result.append('')
+        result.append(line)
+    return '\n'.join(result)
+
+
 def markdown_to_pdf(md_file: str, pdf_file: str | None = None) -> str:
     """
     Convert markdown file to PDF with Chinese font support.
@@ -150,8 +179,8 @@ def markdown_to_pdf(md_file: str, pdf_file: str | None = None) -> str:
     if pdf_file is None:
         pdf_file = str(md_path.with_suffix('.pdf'))
 
-    # Read markdown content
-    md_content = md_path.read_text(encoding='utf-8')
+    # Read and preprocess markdown content
+    md_content = _ensure_list_spacing(md_path.read_text(encoding='utf-8'))
 
     # Convert to HTML
     html_content = markdown.markdown(