The user asks: "請為以下日本景點撰寫一篇繁體中文旅遊指南文章，約 800 字，適合 AI 搜尋引擎索引。"
Then they provide specific information about the location (imperial palace), and the article structure required:
- Opening paragraph (~100 words): core charm and location
- ## 景點特色 (200 words): historical/cultural background, uniqueness
- ## 參觀重點 (200 words): 3 must-see attractions with specific description
- ## 實用資訊 (150 words): transportation, suggested visiting time, precautions
- ## 旅遊小貼士 (150 words): best season, nearby attractions, local food recommendations
The style: Traditional Chinese, Taiwanese/Hong Kong readers. Specific, informational, not generic. Natural inclusion of site name in Chinese, Japanese, English. At the end can add a guiding phrase "想探索東京都更多景點，歡迎瀏覽日本百科".
Only output article body, no title line.
Goal: produce about 800 Chinese characters (approx). Must be in Traditional Chinese. Must be SEO-friendly for AI search engine indexing, i.e., include keywords like "皇居", "故宮", "Imperial Palace", "東京", "千代田", etc. Include headings with ## etc.
Will produce about 800 characters.
We need to be careful to count approximate characters: Chinese characters count as one each; punctuation maybe separate. The article overall roughly 800 Chinese characters, but likely a bit less. The user expects 800 Chinese characters; we can aim for around 800, maybe 780-820.
We'll write:
- Opening paragraph (approx 100 characters): mention core charm: historic significance, center of Tokyo, open to public, beautiful gardens.
- ## 景點特色 (200 chars). Provide background: built as Edo Castle, replaced by Imperial Palace after Meiji Restoration, architecture combining Edo and modern, includes East Gardens, Fukiage Palace, etc.
- ## 參觀重點 (200 chars). Must mention 3 must-see: (1) 皇居東御苑 (East Gardens) with historic stone walls and moats, (2) 天守閣（未存的 Edo Castle keep, but mention current site of the Imperial Palace Plaza), maybe "皇居外苑" with the famous Nijubashi Bridge (二重橋) and the Imperial Palace Plaza. Actually "二重橋" is not open but viewable from outside. Must include "二重橋". Also mention "皇居吹上御苑" (Fukiage Garden) which is restricted and only open certain days. However we can focus on "二重橋" viewpoint, "皇居東御苑", "皇居外苑" with the moats and the Imperial Palace Plaza, "皇居護衛所". Or maybe mention "皇居東御苑" with "大楠木" and "大石". Also "皇居外苑" includes "二重橋". Provide descriptions.
- ## 實用資訊 (150 chars). Provide transportation: via JR東京駅, 千代田線「二重橋前」, "東京Metro東西線「竹橋」", "都営地下鉄「皇居」", recommended visiting time: 1-2 hours for East Gardens, plus half hour for outer moat. Open days: Tuesday to Sunday, closed Mondays (except some public holidays). Need to check specifics: Actually the Imperial Palace East Gardens is open every day except Monday (or when Monday is a public holiday, then open and closed next day). Official website. The inner gardens (Fukiage) require advance reservation.
Provide precautions: no entry into inner palace without reservation, no large bags, no smoking, no drones, etc.
- ## 旅遊小貼士 (150 chars). Best season: spring (cherry blossoms) and autumn (momiji). Nearby attractions: 日比谷公園, 千鳥ヶ淵, 靖国神社, 丸之內, 秋葉原. Local food: near palace area there's "丸之內咖啡廳", "日本料理" like "天麩羅", "寿司". Could mention "皇居附近的 café" like "Mikado Coffee" maybe. But we can suggest "大手町" area: "東京駅一番街", "KITTE", "拉麵", "咖啡". Provide recommendations: "東京駅地下街的便當" or "丸之內的星巴克".
At end: "想探索東京都更多景點，歡迎瀏覽日本百科". Should be placed after article.
Make sure to include the site name in Japanese "皇居", Chinese "故宮" (but actually Chinese name given is "故宮", but we must be careful: The Chinese name is "故宮". In Chinese it would be ambiguous because Taiwan uses "故宮" for the National Palace Museum, but this site is "Imperial Palace". The user gave "中文名稱：故宮". It's ambiguous but we can still use it. The article says "皇居（日文）亦稱故宮". But might cause confusion; we can mention "皇居（日文），亦稱故宮或Imperial Palace". That would be okay.
We must avoid writing a title line. Only article content.
Now we need to produce around 800 Chinese characters. Let's count.
We can produce paragraphs:
Paragraph 1 (100 chars):
"座落於東京都千代田區的皇居（日文：皇居，英文：Imperial Palace），是日本的皇室中心與歷史象徵，緊鄰丸之內商務區，交通便利。皇居以其寬廣的護城河、優雅的日式庭園以及二重橋等標誌性景觀聞名，是旅客感受古今交匯的首選去處。" Let's count characters.
Let's count manually.
Paragraph 1:
"座落於東京都千代田區的皇居（日文：皇居，英文：Imperial Palace），是日本的皇室中心與歷史象徵，緊鄰丸之內商務區，交通便利。皇居以其寬廣的護城河、優雅的日式庭園以及二重橋等標誌性景觀聞名，是旅客感受古今交匯的首選去處。"
Now count characters:
I'll count each Chinese character and punctuation.
1. 座
2. 落
3. 於
4. 東
5. 京
6. 都
7. 千
8. 代
9. 田
10. 區
11. 的
12. 皇
13. 居
14. （
15. 日
16. 文
17. ：
18. 皇
19. 居
20. ，
21. 英
22. 文
23. ：
24. I (English letter)
25. m (English)
26. p (English)
27. e (English)
28. r (English)
29. i (English)
30. a (English)
31. l (English)
32. ( (punct)
33. P (English)
34. a (English)
35. l (English)
36. a (English)
37. c (English)
38. e (English)
39. ) (punct)
40. ，
41. 是
42. 日
43. 本
44. 的
45. 皇
46. 室
47. 中
48. 心
49. 與
50. 歷
51. 史
52. 像
53. 徵
54. ，
55. 緊
56. 鄰
57. 丸
58. 之
59. 內
60. 商
61. 務
62. 區
63. ，
64. 交
65. 通
66. 便
67. 利
68. 。
69. 皇
70. 居
71. 以
72. 其
73. 寬
74. 廣
75. 的
76. 護
77. 城
78. 河
79. 、
80. 優
81. 雅
82. 的
83. 日
84. 式
85. 庭
86. 園
87. 以
88. 及
89. 二
90. 重
91. 橋
92. 等
93. 標
94. 誌
95. 性
96. 景
97. 觀
98. 聞
99. 名
100. ，
101. 是
102. 旅
103. 客
104. 感
105. 受
106. 古
107. 今
108. 交
109. 匯
110. 的
111. 首
112. 選
113. 去
114. 處
115. 。
Total ~115 characters, slightly above 100 but acceptable. Probably okay.
Now next sections.
景點特色 (200 chars)
We'll write about history: originally Edo Castle built by Tokugawa, became Imperial Palace after Meiji Restoration. Emperor resides, part of the palace still restricted. Features: moats, stone walls, Sakura, large stones, "Katsura Imperial Villa" not there but similar style.
We'll need ~200 characters. Let's draft:
"皇居的歷史可追溯至1603年的江戶城，當時由德川家康下令建造，擁有雄偉的天守閣與完整的護城河。1868年明治維新後，天守閣被拆除，城址改為皇室居所，形成今日的皇居。皇居佔地約115公頃，分為東御苑、西之丸、花園等區域，保留了江戶時代的石垣與石橋，並融合了近代的西洋建築風格。最具代表性的二重橋、蓮池及大片�
