We need to write article of 1500+ characters (words? The user says "字数要求：必须写满1500字，不能少于1050字！" They refer to "字数" meaning characters? Usually Chinese "字数" counts characters, but they also say "1500字以上". They ask for 1500 characters, not words. We'll produce about 1600-1800 characters to be safe. Must be 6-8 paragraphs, each 150-250 characters. So total characters approx 6*200=1200, need up to 1500+. So maybe 7 paragraphs of ~230 characters each = 1610 characters. Must not include title. Must be natural, conversational style, avoid AI phrases. Must not use forbidden words. Must not use title in article (they said "直接输出正文，不要标题"). So start directly with content, but opening should echo the title theme. Title is "堡垒机访问数据库，安全管控与高效运维两不误". We need to echo that phrase in opening but not as title. Could start with something like "其实，真正把握堡垒机访问数据库的要点，就是在安全管控和高效运维之间找到那种平衡..." That's fine.
Paragraph length 150-250 Chinese characters. We'll aim each ~220 characters. Need 6-8 paragraphs. Let's produce 7 paragraphs each around 220 characters. That yields ~1540 characters. Ensure no AI filler words. Avoid "、" etc. Use short sentences. Avoid "让我们...", "。很多人会想到传统的 SSH 登录，但随着业务规模的扩大，这样的方式已经难以满足既要严格管控又要保持高效的需求。这时候，堡垒机访问数据库的模式逐渐进入视野，它把安全和效率揉合在一起，成为一种新的实践。" Let's count characters: I'll count quickly.
"在日常运维中，数据库的安全性往往是首要关注点，而访问方式的合适与否直接决定了风险大小。" That's 38? Let's count precisely later. But overall need 150-250 characters per paragraph. This paragraph might be around 150-180. Might need to expand a bit.
Better to write each paragraph about 200 characters. Let's craft more systematically.
I'll write paragraphs with about 200 characters each. Let's draft and then count manually roughly.
Paragraph1 (approx 200 chars):
"在日常运维里，数据库的安全性往往是第一站，但单纯靠 SSH 登录已难以兼顾管控和效率。当业务规模扩大，团队需要更统一的入口来防止泄漏，同时还要保持操作流畅。正是在这种情况下，堡垒机访问数据库的方案逐渐被采纳，它提供了一个统一的跳板，让安全管控和高效运维不再互相妨碍，而是相辅相成。"
Now count characters: Let's count manually (including punctuation? Chinese characters count includes punctuation? Usually characters count includes punctuation but we can approximate). I'll count characters (excluding spaces).
"在日常运维里，数据库的安全性往往是第一站，但单纯靠 SSH 登录已难以兼顾管控和效率。" Let's count: 在(1)日(2)常(3)运(4)维(5)里(6) ，(punct) maybe not count but we can ignore. Let's just approximate length: It seems around 45 characters. Continue: "但单纯靠 SSH 登录已难以兼顾管控和效率。" That's about 20 characters. So far 65. "当业务规模扩大，团队需要更统一的入口来防止泄漏，同时还要保持操作流畅。" That's about 30-35 characters. So total ~100. "正是在这种情况下，堡垒机访问数据库的方案逐渐被采纳，它提供了一个统一的跳板，让安全管控和高效运维不再互相妨碍，而是相辅相成。" That's about 50 characters. So total maybe 150. That's okay but need 150-250 per paragraph. It's at lower bound. Might need to add more detail.
Add more: "在实际使用中，这种方式能够把所有访问集中管理，避免散乱的账号密码散落各个服务器，从而降低被攻击的可能性。" That's extra ~30 characters. So paragraph becomes ~180-200. Good.
Let's rewrite paragraph1 with more content, aiming 200-230 characters.
"在日常运维里，数据库的安全性往往是第一站，但单纯靠 SSH 登录已难以兼顾管控和效率。当业务规模扩大，团队需要更统一的入口来防止泄漏，同时还要保持操作流畅。正是在这种情况下，堡垒机访问数据库的方案逐渐被采纳，它提供了一个统一的跳板，让安全管控和高效运维不再互相妨碍，而是相辅相成。更重要的是，它把所有访问集中管理，避免散乱的账号密码散落各个服务器，从而显著降低被攻击的可能性。"
Now count characters roughly: Let's count quickly.
"在日常运维里，数据库的安全性往往是第一站，但单纯靠 SSH 登录已难以兼顾管控和效率。" -> about 38 characters? Let's count: 在1日2常3运4维5里6，7数8据9库10的11安12全13性14往15往16是17第18一19站20，21但22单23纯24靠25空26空27空28登29录30已31难32以33兼34顾35管36控37和38效39率40。 That's 40 characters (including punctuation). Continue: "当业务规模扩大，团队需要更统一的入口来防止泄漏，同时还要保持操作流畅。" Count: 当1业2务3规4模5扩6大7，8团9队10需11要12更13统14一15的16入17口18来19防20止21泄22漏23，24同25时26还27要28保29持30操31作32流33畅34。 That's 34 characters. So total 74. Next: "正是在这种情况下，堡垒机访问数据库的方案逐渐被采纳，它提供了一个统一的跳板，让安全管控和高效运维不再互相妨碍，而是相辅相成。" Count: 正1是2在3这4样5的6下7去8，堡9垒10机11访12问13数14据15库16的17方18案19逐20渐21被22采23纳24，25它26提27供28了29一30个31统32一33的34跳35板36，37让38安39全40管41控42和43高44效45运46维47不48再49互50相51妨52碍53，54而55是56相57辅58相59成60。 That's about 60 characters. So total now 74+60=134. Next sentence: "更重要的是，它把所有访问集中管理，避免散乱的账号密码散落各个服务器，从而显著降低被攻击的可能性。" Count: 最1Important? Let's count: 最1重2要3，4它5把6所7有8访9问10集11中12管13理14，15避16免17散18乱19的20账21号22密23码24散25落26各27个28服29务30器31，32从33而34显35著36降37低38被39攻40击41的42可43能44性45。 That's about 45 characters. So total ~179 characters. Good, within 150-250.
Paragraph2: talk about what is bastion host and role.
Paragraph2 draft ~200 chars:
"堡垒机本质上是一款专门的 jump host，它充当用户与内部数据库之间的桥梁。相比直接在服务器上开放端口，堡垒机把所有入口集中在一个安全的节点上
