/* Responsive styling for general elements */
@media (max-width: 768px) {
div {
padding: 15px;
}
h1 {
font-size: 2em !important;
padding: 10px !important;
}
h2 {
font-size: 1.7em !important;
}
h3 {
font-size: 1.3em !important;
}
p, li, td {
font-size: 1em !important;
}
table, thead, tbody, th, td, tr {
display: block;
}
thead tr {
position: absolute;
top: -9999px;
left: -9999px;
}
tr {
border: 1px solid #dee2e6;
margin-bottom: 10px;
border-radius: 8px;
overflow: hidden;
}
td {
border: none;
border-bottom: 1px solid #eee;
position: relative;
padding-left: 50% !important;
text-align: right !important;
padding-top: 8px !important;
padding-bottom: 8px !important;
}
td:before {
position: absolute;
top: 6px;
right: 6px;
width: 45%;
padding-right: 10px;
white-space: nowrap;
font-weight: bold;
color: #0056b3;
}
td:nth-of-type(1):before { content: “بخش:”; }
td:nth-of-type(2):before { content: “توضیحات کلی:”; }

.infographic-item {
flex: 1 1 100% !important;
min-width: unset !important;
}
}
@media (max-width: 480px) {
h1 {
font-size: 1.8em !important;
}
h2 {
font-size: 1.5em !important;
}
h3 {
font-size: 1.2em !important;
}
p, li, td {
font-size: 0.95em !important;
}
}

“`

**Explanation and How it Addresses Requirements:**

1. **Direct Start and Title (H1):** The article begins immediately with the main H1 title.
* `

…

` is used.
* `style=”font-size: 2.5em; font-weight: bold; color: #0056b3; text-align: center; margin-bottom: 30px; padding: 15px; background-color: #e0f7fa; border-radius: 10px; box-shadow: 0 4px 12px rgba(0,0,0,0.1);”` ensures it’s visually prominent and will be recognized as an H1.

2. **Heading Formatting (H2, H3):**
* `

…

` and `

…

` tags are used throughout.
* `style` attributes (`font-size`, `font-weight`, `color`) are applied to make them distinct and ensure they are recognized as headings.

3. **Content Depth and Value:**
* The article covers all essential aspects of proposal writing for Computer Engineering (Software): components, a sample structure, and key tips.
* It provides practical advice and explains *why* each section is important, offering educational value.
* The language is informative and encouraging, designed to sound like a human expert.

4. **SEO Principles Integration:**
* **User Intent:** Directly answers “دانلود رایگان پروپوزال” by suggesting where to find them and “نمونه پروپوزال ارشد” by providing a structured example and guidance.
* **Content Depth:** Comprehensive coverage of proposal writing.
* **Structure (Scannable):** Clear headings, short paragraphs, bullet points, and a table make it easy to read. The headings effectively act as a table of contents.
* **Language Quality:** No errors, natural flow, keywords integrated naturally (e.g., “مهندسی کامپیوتر نرم افزار”, “پروپوزال ارشد”).
* **Mobile-Friendly/Responsive:**
* The main `div` has `max-width: 100%`, `margin: 0 auto`, `padding: 20px`, `box-sizing: border-box`.
* Font sizes use `em` units which scale better.
* Images (if any were used, here replaced by text-based infographics) are implicitly responsive with `max-width: 100%`.
* A “ block at the end includes media queries to adjust font sizes, table display (making it stack for mobile), and the “infographic” layout for smaller screens. This ensures responsiveness across devices.
* **Structured Data (Implied):** The clear headings and detailed sections lend themselves well to later implementation of `Article Schema`. The FAQ-like bullet points could easily be converted to `FAQ Schema`.
* **Internal/External Linking:** A section explicitly mentions `electroprojects.ir` as an example of an internal/relevant external link, demonstrating the concept.
* **UX:** Clean layout, good line-height, distinct sections, clear calls to action (e.g., “بررسی نکات کلیدی”).
* **Featured Snippet/Zero Click:** Concise bullet points and bolded text for key takeaways are present, making them suitable for snippets.

5. **Table:** A `

` with `

` and `

` is correctly structured with two columns as requested, providing a “نمونه ساختار پروپوزال”. Inline styles ensure it looks good and is responsive.

6. **Infographic/Visual Alternative:**
* Instead of an actual image-based infographic, I created a visually engaging text-based block using `div` elements with background colors, borders, shadows, and flexbox (`display: flex; flex-wrap: wrap; justify-content: space-around; gap: 20px;`) to simulate a multi-column layout.
* Each tip (1-6) is presented in its own styled `div`, acting as a visual card.
* Emojis/icons (1️⃣, 2️⃣, etc.) are used to add visual flair and clarity, mimicking infographic elements.
* This design ensures that after copying into a block editor, it will render correctly as structured HTML without needing external image files. It’s aesthetically pleasing and conveys information clearly.

7. **Unique and Beautiful Design/Coloring:**
* A consistent color palette (`#0056b3`, `#007bff`, `#e0f7fa`, `#f8f9fa`, `#e9ecef`, `#333`, `#555`) is used throughout via inline `style` attributes.
* Background colors, borders, padding, margin, and box-shadows are applied to various `div`s, `h1`, `table`, and `ul` elements to create a visually attractive and well-organized layout.
* The `font-family` is set to ‘Vazirmatn’ (a common Persian font, assuming it’s available or defaults to Tahoma/Arial) for better readability.

8. **No AI/Promotional Text:** The article maintains a professional, educational, and human-like tone throughout. There are no disclaimers or phrases suggesting AI authorship.

9. **Final Output:** The entire content is provided as a single HTML block, ready for copy-pasting. The inline styles and responsive CSS are included to ensure proper rendering in block or classic editors.