这个问题是要把给定的纯文本新闻正文排版成语义化的HTML片段，用户现在需要我按照规则处理这段内容。首先看原文，发现是一个长段落，里面包含系统介绍、流水线输出、成本控制设计这些内容，需要拆分成小节吗？不过原文每个自然段落是一段，但内容里有不同部分，不过规则说长文用h2/h3划分小节，这段原文是不是需要拆分？再看原文结构：第一句讲背景，第二句讲系统引入，第三句讲流水线输出，第四句讲成本控制，第五句讲设计效果。那是不是要把这些内容按逻辑分成小节？比如“背景与系统概述”“流水线输出”“成本控制设计”“设计与效果”？不过原文没有现成的小节标题，规则说不能增删改内容，所以不能自己加标题内容，那原文的每个自然段落就是一段？不对，原文是一整段，那是不是直接用p包裹？但里面有不同的内容点，比如“To control inference cost...”这部分是单独的设计，是不是要拆成不同的p？哦，原文的每个自然段落是一个段落，但里面的子内容如果是不同的逻辑点，是不是可以拆成多个p？比如第一句单独一段？不对，原文是连续的一个段落，没有换行。那再看规则，每个自然段落用p包裹，长文用h2/h3划分小节。那原文是不是长文？这段有五句话，逻辑上有背景、系统、输出、成本、效果五个部分，可能需要拆分。比如第一句是背景，第二句是系统，第三句是输出，第四句是成本，第五句是效果。那是不是把这五句话拆成五个p？或者用h2/h3？但h2/h3需要有标题，原文没有标题，所以不能自己加，所以只能用p。那每个自然段落用p，原文是一整段，所以是不是直接用一个p？但里面有不同的内容点，比如“To control inference cost...”这部分是单独的设计，是不是要拆成多个p？哦，原文的句子之间是逻辑连贯的，但属于不同的功能点，比如系统介绍、输出、成本控制。那可能拆成几个p：第一个p包含前两句？第二个p是第三句，第三个p是第四句，第四个p是第五句？或者看句子的逻辑：第一句是背景，第二句是系统，第三句是输出，第四句是成本，第五句是效果。那拆成五个p？每个句子一个p？但原文是连续的段落，没有换行，所以是不是直接用一个p包裹整个段落？不对，规则说每个自然段落用p包裹，原文的自然段落是一个，所以应该用一个p？但里面的“To control inference cost...”这部分是单独的设计，是不是需要用其他标签？比如用strong强调重要句子？比如“Together, these design choices enhance the explainability, efficiency, and practical usability...”这句是效果，可以用strong？还有“including highlighted sentences, technique assignments, and concise rationales”这部分是列表内容，是不是要用ul/li？哦，原文里的“including highlighted sentences, technique assignments, and concise rationales”是并列的，属于列表内容，所以应该改成ul/li。那处理的时候，要把这部分拆成ul：
- highlighted sentences
- technique assignments
- concise rationales
。还有“identifies, label, and explain specific propaganda strategies”是不是也是列表？哦，原文里的“identifies, label, and explain specific propaganda strategies”是并列的，可能也是列表？不过看原文：“to identify, label, and explain specific propaganda strategies”，这里的三个动词并列，是不是要用ul/li？或者用逗号分隔？规则说列表内容用ul/li，所以并列的三个内容如果是列表的话要用ul。那原文里的“including highlighted sentences, technique assignments, and concise rationales”是明确的列表，需要拆成ul。还有“explainability, efficiency, and practical usability”也是并列的，可能也需要拆成ul？那现在开始处理：首先，原文的第一句：“Propagandistic content increasingly circulates through online news and social media, where readers often encounter it with limited scrutiny, highlighting the need for reliable and fine-grained detection.” 这是一个自然段的第一句，接下来第二句：“This paper introduces Propasafe-Hybrid, a sentence-level system that integrates a fine-tuned transformer classifier with LLM-based technique classification to identify, label, and explain specific propaganda strategies.” 这里的“identify, label, and explain”是并列的，拆成ul：
- identify
- label
- explain specific propaganda strategies
？或者保持原样？不对，规则说列表内容用ul/li，所以如果是并列的三个动作，应该拆成列表。然后第三句：“The pipeline generates actionable outputs, including highlighted sentences, technique assignments, and concise rationales, so users can immediately understand why a sentence was flagged and how each label was determined.” 这里的“including highlighted sentences, technique assignments, and concise rationales”是列表，拆成ul：
- highlighted sentences
- technique assignments
- concise rationales
。第四句：“To control inference cost, Propasafe-Hybrid employs a cost-aware pre-filtering stage that forwards only high-likelihood sentences to LLMs, reducing token usage while preserving the underlying decision logic.” 这是一个句子，没有列表。第五句：“Together, these design choices enhance the explainability, efficiency, and practical usability of sentence-level propaganda detection in real-world news environments.” 这里的“explainability, efficiency, and practical usability”是列表，拆成ul：
- explainability
- efficiency
- practical usability
，或者用strong强调这句？规则说重要句子可用strong。那现在组合起来：首先，第一句用p包裹：
Propagandistic content increasingly circulates through online news and social media, where readers often encounter it with limited scrutiny, highlighting the need for reliable and fine-grained detection.
。第二句：“This paper introduces Propasafe-Hybrid, a sentence-level system that integrates a fine-tuned transformer classifier with LLM-based technique classification to
- identify
- label
- explain specific propaganda strategies
.” 不对，这里的ul应该放在哪里？原句是“to identify, label, and explain specific propaganda strategies”，所以应该改成“to
- identify
- label
- explain specific propaganda strategies
.” 但这样是不是符合HTML语义？或者保持原句的结构，用逗号分隔？不对，规则说列表内容用ul/li，所以只要是并列的列表内容就要用。那第二句的处理：
This paper introduces Propasafe-Hybrid, a sentence-level system that integrates a fine-tuned transformer classifier with LLM-based technique classification to
- identify
- label
- explain specific propaganda strategies
.
。第三句：“The pipeline generates actionable outputs, including
- highlighted sentences
- technique assignments
- concise rationales
, so users can immediately understand why a sentence was flagged and how each label was determined.” 所以第三句的p是：
The pipeline generates actionable outputs, including
- highlighted sentences
- technique assignments
- concise rationales
, so users can immediately understand why a sentence was flagged and how each label was determined.
。第四句：
To control inference cost, Propasafe-Hybrid employs a cost-aware pre-filtering stage that forwards only high-likelihood sentences to LLMs, reducing token usage while preserving the underlying decision logic.
。第五句：“Together, these design choices enhance the
- explainability
- efficiency
- practical usability
of sentence-level propaganda detection in real-world news environments.” 或者用strong：“
Together, these design choices enhance the
- explainability
- efficiency
- practical usability
of sentence-level propaganda detection in real-world news environments.” 但规则说重要句子可用strong，这句是总结，属于重要句子，所以用strong。那现在组合起来：
Propagandistic content increasingly circulates through online news and social media, where readers often encounter it with limited scrutiny, highlighting the need for reliable and fine-grained detection.
This paper introduces Propasafe-Hybrid, a sentence-level system that integrates