diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8bd9c06..8c2ec8d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -47,13 +47,13 @@ jobs:
 
     - name: Rename binary with platform suffix
       run: |
-        mv build/nbtca_tui build/nbtca_tui-${{ matrix.name }}
+        mv build/tut build/tut-${{ matrix.name }}
 
     - name: Upload artifact
       uses: actions/upload-artifact@v4
       with:
-        name: nbtca_tui-${{ matrix.name }}
-        path: build/nbtca_tui-${{ matrix.name }}
+        name: tut-${{ matrix.name }}
+        path: build/tut-${{ matrix.name }}
 
   release:
     needs: build
@@ -85,13 +85,13 @@ jobs:
           Automated release for commit ${{ github.sha }}
 
           ## Download
-          - **macOS**: `nbtca_tui-macos`
-          - **Linux**: `nbtca_tui-linux`
+          - **macOS**: `tut-macos`
+          - **Linux**: `tut-linux`
 
           ## Build from source
           See the [README](https://github.com/${{ github.repository }}/blob/main/README.md) for build instructions.
         files: |
-          artifacts/nbtca_tui-macos/nbtca_tui-macos
-          artifacts/nbtca_tui-linux/nbtca_tui-linux
+          artifacts/tut-macos/tut-macos
+          artifacts/tut-linux/tut-linux
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 48ff0b9..ae3e6ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,8 @@ build/
 *.o
 tut
 .DS_Store
+*.swp
+*.swo
+*~
+.vscode/
+.idea/
diff --git a/src/browser.cpp b/src/browser.cpp
index 9f50bd8..7afb06f 100644
--- a/src/browser.cpp
+++ b/src/browser.cpp
@@ -52,9 +52,9 @@ public:
         auto response = http_client.fetch(url);
 
         if (!response.is_success()) {
-            status_message = "Error: " + (response.error_message.empty() ?
+            status_message = response.error_message.empty() ?
                 "HTTP " + std::to_string(response.status_code) :
-                response.error_message);
+                response.error_message;
             return false;
         }
 
@@ -65,14 +65,13 @@ public:
         current_link = -1;
         search_results.clear();
 
-        // 更新历史
         if (history_pos >= 0 && history_pos < static_cast<int>(history.size()) - 1) {
             history.erase(history.begin() + history_pos + 1, history.end());
         }
         history.push_back(url);
         history_pos = history.size() - 1;
 
-        status_message = "Loaded: " + (current_doc.title.empty() ? url : current_doc.title);
+        status_message = current_doc.title.empty() ? url : current_doc.title;
         return true;
     }
 
@@ -80,7 +79,6 @@ public:
         attron(COLOR_PAIR(COLOR_STATUS_BAR));
         mvprintw(screen_height - 1, 0, "%s", std::string(screen_width, ' ').c_str());
 
-        // 显示模式和缓冲
         std::string mode_str;
         InputMode mode = input_handler.get_mode();
         switch (mode) {
@@ -88,29 +86,24 @@ public:
                 mode_str = "NORMAL";
                 break;
             case InputMode::COMMAND:
-                mode_str = input_handler.get_buffer();
-                break;
             case InputMode::SEARCH:
                 mode_str = input_handler.get_buffer();
                 break;
             default:
-                mode_str = "???";
+                mode_str = "";
                 break;
         }
 
-        // 左侧：模式或命令
         mvprintw(screen_height - 1, 0, " %s", mode_str.c_str());
 
-        // 中间：状态消息
         if (!status_message.empty() && mode == InputMode::NORMAL) {
             int msg_x = (screen_width - status_message.length()) / 2;
-            if (msg_x < mode_str.length() + 2) {
+            if (msg_x < static_cast<int>(mode_str.length()) + 2) {
                 msg_x = mode_str.length() + 2;
             }
             mvprintw(screen_height - 1, msg_x, "%s", status_message.c_str());
         }
 
-        // 右侧：位置信息
         int total_lines = rendered_lines.size();
         int visible_lines = screen_height - 2;
         int percentage = 0;
@@ -147,7 +140,6 @@ public:
             int line_idx = scroll_pos + i;
             const auto& line = rendered_lines[line_idx];
 
-            // 高亮当前链接
             if (line.is_link && line.link_index == current_link) {
                 attron(COLOR_PAIR(COLOR_LINK_ACTIVE));
             } else {
@@ -157,15 +149,12 @@ public:
                 }
             }
 
-            // 搜索高亮
-            std::string display_text = line.text;
             if (!search_term.empty() &&
                 std::find(search_results.begin(), search_results.end(), line_idx) != search_results.end()) {
-                // 简单高亮：整行反色（实际应该只高亮匹配部分）
                 attron(A_REVERSE);
             }
 
-            mvprintw(i, 0, "%s", display_text.c_str());
+            mvprintw(i, 0, "%s", line.text.c_str());
 
             if (!search_term.empty() &&
                 std::find(search_results.begin(), search_results.end(), line_idx) != search_results.end()) {
@@ -225,7 +214,6 @@ public:
             case Action::NEXT_LINK:
                 if (!current_doc.links.empty()) {
                     current_link = (current_link + 1) % current_doc.links.size();
-                    // 滚动到链接位置
                     scroll_to_link(current_link);
                 }
                 break;
diff --git a/src/input_handler.cpp b/src/input_handler.cpp
index bc21e17..c8ad265 100644
--- a/src/input_handler.cpp
+++ b/src/input_handler.cpp
@@ -23,22 +23,18 @@ public:
         result.has_count = false;
         result.count = 1;
 
-        // 处理数字前缀
         if (std::isdigit(ch) && (ch != '0' || !count_buffer.empty())) {
             count_buffer += static_cast<char>(ch);
             return result;
         }
 
-        // 解析count
         if (!count_buffer.empty()) {
             result.has_count = true;
             result.count = std::stoi(count_buffer);
             count_buffer.clear();
         }
 
-        // 处理vim风格的命令
         switch (ch) {
-            // 移动
             case 'j':
             case KEY_DOWN:
                 result.action = Action::SCROLL_DOWN;
@@ -55,18 +51,14 @@ public:
             case KEY_RIGHT:
                 result.action = Action::GO_FORWARD;
                 break;
-
-            // 翻页
-            case 4: // Ctrl-D
+            case 4:
             case ' ':
                 result.action = Action::SCROLL_PAGE_DOWN;
                 break;
-            case 21: // Ctrl-U
+            case 21:
             case 'b':
                 result.action = Action::SCROLL_PAGE_UP;
                 break;
-
-            // 跳转
             case 'g':
                 buffer += 'g';
                 if (buffer == "gg") {
@@ -82,8 +74,6 @@ public:
                     result.action = Action::GOTO_BOTTOM;
                 }
                 break;
-
-            // 搜索
             case '/':
                 mode = InputMode::SEARCH;
                 buffer = "/";
@@ -94,27 +84,21 @@ public:
             case 'N':
                 result.action = Action::SEARCH_PREV;
                 break;
-
-            // 链接导航
-            case '\t': // Tab
+            case '\t':
                 result.action = Action::NEXT_LINK;
                 break;
-            case KEY_BTAB: // Shift-Tab (可能不是所有终端都支持)
+            case KEY_BTAB:
             case 'T':
                 result.action = Action::PREV_LINK;
                 break;
-            case '\n': // Enter
+            case '\n':
             case '\r':
                 result.action = Action::FOLLOW_LINK;
                 break;
-
-            // 命令模式
             case ':':
                 mode = InputMode::COMMAND;
                 buffer = ":";
                 break;
-
-            // 其他操作
             case 'r':
                 result.action = Action::REFRESH;
                 break;
@@ -124,7 +108,6 @@ public:
             case '?':
                 result.action = Action::HELP;
                 break;
-
             default:
                 buffer.clear();
                 break;
@@ -138,8 +121,7 @@ public:
         result.action = Action::NONE;
 
         if (ch == '\n' || ch == '\r') {
-            // 执行命令
-            std::string command = buffer.substr(1); // 去掉':'
+            std::string command = buffer.substr(1);
 
             if (command == "q" || command == "quit") {
                 result.action = Action::QUIT;
@@ -148,14 +130,12 @@ public:
             } else if (command == "r" || command == "refresh") {
                 result.action = Action::REFRESH;
             } else if (command.rfind("o ", 0) == 0 || command.rfind("open ", 0) == 0) {
-                // :o URL 或 :open URL
                 size_t space_pos = command.find(' ');
                 if (space_pos != std::string::npos) {
                     result.action = Action::OPEN_URL;
                     result.text = command.substr(space_pos + 1);
                 }
             } else if (!command.empty() && std::isdigit(command[0])) {
-                // 跳转到行号
                 try {
                     result.action = Action::GOTO_LINE;
                     result.number = std::stoi(command);
@@ -166,7 +146,7 @@ public:
 
             mode = InputMode::NORMAL;
             buffer.clear();
-        } else if (ch == 27) { // ESC
+        } else if (ch == 27) {
             mode = InputMode::NORMAL;
             buffer.clear();
         } else if (ch == KEY_BACKSPACE || ch == 127 || ch == 8) {
@@ -188,14 +168,13 @@ public:
         result.action = Action::NONE;
 
         if (ch == '\n' || ch == '\r') {
-            // 执行搜索
             if (buffer.length() > 1) {
                 result.action = Action::SEARCH_FORWARD;
-                result.text = buffer.substr(1); // 去掉'/'
+                result.text = buffer.substr(1);
             }
             mode = InputMode::NORMAL;
             buffer.clear();
-        } else if (ch == 27) { // ESC
+        } else if (ch == 27) {
             mode = InputMode::NORMAL;
             buffer.clear();
         } else if (ch == KEY_BACKSPACE || ch == 127 || ch == 8) {
diff --git a/src/main.cpp b/src/main.cpp
index 5e1b137..e13b2a7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,19 +12,18 @@ void print_usage(const char* prog_name) {
               << "  " << prog_name << " https://example.com\n"
               << "  " << prog_name << " https://news.ycombinator.com\n\n"
               << "Vim-style keybindings:\n"
-              << "  j/k     - Scroll down/up\n"
-              << "  gg/G    - Go to top/bottom\n"
-              << "  /       - Search\n"
-              << "  Tab     - Next link\n"
-              << "  Enter   - Follow link\n"
-              << "  h/l     - Back/Forward\n"
-              << "  :o URL  - Open URL\n"
-              << "  :q      - Quit\n"
-              << "  ?       - Show help\n";
+              << "  j/k       - Scroll down/up\n"
+              << "  gg/G      - Go to top/bottom\n"
+              << "  /         - Search\n"
+              << "  Tab       - Next link\n"
+              << "  Enter     - Follow link\n"
+              << "  h/l       - Back/Forward\n"
+              << "  :o URL    - Open URL\n"
+              << "  :q        - Quit\n"
+              << "  ?         - Show help\n";
 }
 
 int main(int argc, char* argv[]) {
-    // 解析命令行参数
     std::string initial_url;
 
     if (argc > 1) {
diff --git a/src/text_renderer.cpp b/src/text_renderer.cpp
index 3696e5d..61a15e0 100644
--- a/src/text_renderer.cpp
+++ b/src/text_renderer.cpp
@@ -7,7 +7,6 @@ class TextRenderer::Impl {
 public:
     RenderConfig config;
 
-    // 自动换行处理
     std::vector<std::string> wrap_text(const std::string& text, int width) {
         std::vector<std::string> lines;
         if (text.empty()) {
@@ -19,20 +18,17 @@ public:
         std::string current_line;
 
         while (words_stream >> word) {
-            // 处理单个词超长的情况
             if (word.length() > static_cast<size_t>(width)) {
                 if (!current_line.empty()) {
                     lines.push_back(current_line);
                     current_line.clear();
                 }
-                // 强制分割长词
                 for (size_t i = 0; i < word.length(); i += width) {
                     lines.push_back(word.substr(i, width));
                 }
                 continue;
             }
 
-            // 正常换行逻辑
             if (current_line.empty()) {
                 current_line = word;
             } else if (current_line.length() + 1 + word.length() <= static_cast<size_t>(width)) {
@@ -54,7 +50,6 @@ public:
         return lines;
     }
 
-    // 添加缩进
     std::string add_indent(const std::string& text, int indent) {
         return std::string(indent, ' ') + text;
     }
@@ -69,20 +64,17 @@ TextRenderer::~TextRenderer() = default;
 std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int screen_width) {
     std::vector<RenderedLine> lines;
 
-    // 计算实际内容宽度
     int content_width = std::min(pImpl->config.max_width, screen_width - 4);
     if (content_width < 40) {
         content_width = screen_width - 4;
     }
 
-    // 计算左边距（如果居中）
     int margin = 0;
     if (pImpl->config.center_content && content_width < screen_width) {
         margin = (screen_width - content_width) / 2;
     }
     pImpl->config.margin_left = margin;
 
-    // 渲染标题
     if (!doc.title.empty()) {
         RenderedLine title_line;
         title_line.text = std::string(margin, ' ') + doc.title;
@@ -92,7 +84,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
         title_line.link_index = -1;
         lines.push_back(title_line);
 
-        // 标题下划线
         RenderedLine underline;
         underline.text = std::string(margin, ' ') + std::string(std::min((int)doc.title.length(), content_width), '=');
         underline.color_pair = COLOR_HEADING1;
@@ -101,7 +92,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
         underline.link_index = -1;
         lines.push_back(underline);
 
-        // 空行
         RenderedLine empty;
         empty.text = "";
         empty.color_pair = COLOR_NORMAL;
@@ -111,7 +101,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
         lines.push_back(empty);
     }
 
-    // 渲染URL
     if (!doc.url.empty()) {
         RenderedLine url_line;
         url_line.text = std::string(margin, ' ') + "URL: " + doc.url;
@@ -130,7 +119,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
         lines.push_back(empty);
     }
 
-    // 渲染内容元素
     for (const auto& elem : doc.elements) {
         int color = COLOR_NORMAL;
         bool bold = false;
@@ -179,7 +167,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
                 break;
         }
 
-        // 换行处理
         auto wrapped_lines = pImpl->wrap_text(elem.text, content_width - prefix.length());
         for (size_t i = 0; i < wrapped_lines.size(); ++i) {
             RenderedLine line;
@@ -195,7 +182,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
             lines.push_back(line);
         }
 
-        // 段落间距
         if (elem.type == ElementType::PARAGRAPH ||
             elem.type == ElementType::HEADING1 ||
             elem.type == ElementType::HEADING2 ||
@@ -212,7 +198,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
         }
     }
 
-    // 渲染链接列表
     if (!doc.links.empty() && pImpl->config.show_link_indicators) {
         RenderedLine separator;
         std::string sepline(content_width, '-');
@@ -254,7 +239,6 @@ std::vector<RenderedLine> TextRenderer::render(const ParsedDocument& doc, int sc
                 lines.push_back(link_line);
             }
 
-            // URL on next line
             auto url_wrapped = pImpl->wrap_text(link.url, content_width - 6);
             for (const auto& url_line_text : url_wrapped) {
                 RenderedLine url_line;