diff --git a/src/components/input_bar.rs b/src/components/input_bar.rs
index 647ab51..3b16f9a 100644
--- a/src/components/input_bar.rs
+++ b/src/components/input_bar.rs
@@ -44,10 +44,10 @@ pub fn InputBar(mut hooks: Hooks) -> impl Into<AnyElement<'static>> {
     });
 
     element!(Border(
-        height: Constraint::Length(4),
+        height: Constraint::Length(6),
         style: Style::default().green(),
-        bottom_title: Line::styled(
-            "Press 'Enter' to submit, 'Esc' to exit",
+        top_title: Line::styled(
+            "Composer",
             Style::default().yellow(),
         ).centered(),
     ) {
diff --git a/src/components/main_scroll.rs b/src/components/main_scroll.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/components/mod.rs b/src/components/mod.rs
index cd96e7e..19919f9 100644
--- a/src/components/mod.rs
+++ b/src/components/mod.rs
@@ -1,3 +1,5 @@
 pub mod welcome;
 pub mod input_bar;
 pub mod status_bar;
+mod main_scroll;
+mod progress_bar;
diff --git a/src/components/progress_bar.rs b/src/components/progress_bar.rs
new file mode 100644
index 0000000..af3a07c
--- /dev/null
+++ b/src/components/progress_bar.rs
@@ -0,0 +1,81 @@
+use ratatui_kit::prelude::*;
+use ratatui_kit::ratatui::{
+    style::{Modifier, Style},
+    text::{Line, Span},
+};
+use ratatui_kit::ratatui::layout::Direction;
+
+#[derive(Debug, Clone, Props)]
+pub struct ProgressBarProps {
+    pub style: Style,
+    pub menu_style: Style,
+    pub install_message: String,
+    pub stage: String,
+    pub percent: f64,
+    pub downloaded: u64,
+    pub total: u64,
+    pub speed: f64,
+}
+
+impl Default for ProgressBarProps {
+    fn default() -> Self {
+        Self {
+            style: Style::default(),
+            menu_style: Style::default(),
+            install_message: String::new(),
+            stage: String::new(),
+            percent: 0.0,
+            downloaded: 0,
+            total: 0,
+            speed: 0.0,
+        }
+    }
+}
+
+#[component]
+pub fn ProgressBar(
+    _hooks: Hooks,
+    props: &ProgressBarProps,
+) -> impl Into<AnyElement<'static>> {
+    // 计算进度条
+    let percent = props.percent.clamp(0.0, 100.0);
+    const BAR_WIDTH: usize = 30;
+    let fill = ((percent / 100.0 * BAR_WIDTH as f64) as usize).min(BAR_WIDTH);
+    let bar = format!("[{}{}]", "█".repeat(fill), "░".repeat(BAR_WIDTH - fill));
+
+    let mut spans = vec![
+        Span::styled(bar, props.menu_style),
+        Span::raw(format!(" {:.2}%", percent)),
+    ];
+
+    if props.stage.contains("Downloading") {
+        let mb = props.downloaded as f64 / 1024.0 / 1024.0;
+        let total_mb = props.total as f64 / 1024.0 / 1024.0;
+        let speed_mb = props.speed / 1024.0 / 1024.0;
+        spans.push(Span::raw(format!("  ({:.2} MB/{:.2} MB)", mb, total_mb)));
+        spans.push(Span::raw(format!("  {:.2} MB/s", speed_mb)));
+    } else {
+        spans.push(Span::raw(format!("  {} / {}", props.downloaded, props.total)));
+    }
+
+    // 官方标准 element! 语法（零错误）
+    element! {
+        View(flex_direction: Direction::Vertical) {
+            // 必须传 String，不能传 &str
+            Text(text: props.install_message.clone(), style: props.style.add_modifier(Modifier::BOLD)) {}
+            Text(text: String::new()) {}
+
+            // 官方条件渲染：#(if ...)
+            #(if !props.stage.is_empty() {
+                Some(element! {
+                    View {
+                        Text(text: props.stage.clone(), style: props.style.add_modifier(Modifier::BOLD)) {}
+                        // Text(spans: spans) {}
+                    }
+                })
+            } else {
+                None
+            })
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/db/store/mod.rs b/src/db/store/mod.rs
index e69de29..ec023ed 100644
--- a/src/db/store/mod.rs
+++ b/src/db/store/mod.rs
@@ -0,0 +1,58 @@
+use ratatui_kit::Store;
+
+pub struct TodoItem {
+    pub id: u32,
+    pub title: String,
+    pub completed: bool,
+}
+
+pub struct TodoList {
+    pub items: Vec<TodoItem>,
+}
+
+pub struct TaskItem {
+    pub id: u32,
+    pub title: String,
+    pub completed: bool,
+}
+
+pub struct TaskList {
+    pub items: Vec<TaskItem>,
+}
+
+#[derive(Store)]
+pub struct GlobalStore {
+    pub llm_name: String,
+    pub current_chat: String,
+    pub cache_size: f64,
+    pub context_size: f64,
+    pub model_context_window: f64,
+    pub input_tokens: u32,
+    pub output_tokens: u32,
+    pub current_chat_count: u32,
+    pub todo_list: TodoList,
+    pub task_list: TaskList,
+    pub input_buffer: String,
+}
+
+impl Default for GlobalStore {
+    fn default() -> Self {
+        Self {
+            llm_name: String::new(),
+            current_chat: String::new(),
+            cache_size: 0.0,
+            context_size: 0.0,
+            model_context_window: 0.0,
+            input_tokens: 0,
+            output_tokens: 0,
+            current_chat_count: 0,
+            todo_list: TodoList {
+                items: Vec::new(),
+            },
+            task_list: TaskList {
+                items: Vec::new(),
+            },
+            input_buffer: String::new(),
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/pages/router.rs b/src/pages/router.rs
index eac98a2..07c8fbb 100644
--- a/src/pages/router.rs
+++ b/src/pages/router.rs
@@ -24,6 +24,8 @@ pub fn RouterPage(mut hooks: Hooks) -> impl Into<AnyElement<'static>> {
     });
 
     //todo 这里的逻辑是通过数据库查询是否初始化，从而确定要路由到 Welcome 还是 Chat
+    //todo 为了开发方便，这里的逻辑还需要判断是否是开发环境，如果是开发环境，默认路由到路由页面，路由页面在生产环境不对外暴露
+    //todo 同时路由函数禁止在生成环境中调用，避免在生产环境中路由到路由页面
 
     element!(
         View(height: Constraint::Length(10),) {