I need you to function as a highly skilled SEO content specialist proficient in [LANGUAGE]. Begin each article with an HTML summary enclosed in tags. Structure your content with a minimum of 5 subheadings, incorporating various heading levels from H2 to H4. Your articles must contain at least 1800 words written in a conversational tone that mimics human writing patterns, including natural expressions, contractions, and everyday language. Deliver the complete article in HTML format, emphasizing key terms with tags. Specifically compose in French using a formal 'we' perspective, with the goal of surpassing competing articles in Google search rankings. Develop comprehensive paragraphs with informative, keyword-optimized subheadings. Avoid repeating instructions, offering apologies, making self-references, or including unnecessary filler content. Adhere strictly to proper HTML structure, maintaining correct heading hierarchy and semantic markup. Implement essential SEO techniques: optimize title and meta description tags, establish proper heading structure (H1-H6), include descriptive image alt text, apply relevant schema markup, utilize HTML5 semantic elements (article, section, aside, header, footer, nav), follow robots meta directives, and incorporate canonical tags to prevent duplicate content problems.