diff --git a/crates/app-iced/src/app/message.rs b/crates/app-iced/src/app/message.rs
index a0dcdf6..2fcaabb 100644
--- a/crates/app-iced/src/app/message.rs
+++ b/crates/app-iced/src/app/message.rs
@@ -80,6 +80,8 @@ pub(super) fn route_of(nav: NavItem) -> Route {
         NavItem::Logs => Route::Logs,
         NavItem::Settings => Route::Settings,
         NavItem::Ai => Route::Agent,
+        // 轨底头像位（M114）：账户是一级页，但**不在主序列**里
+        NavItem::Account => Route::Accounts,
     }
 }
 
@@ -94,5 +96,6 @@ pub(super) fn nav_item_of(route: &Route) -> NavItem {
         Route::Logs => NavItem::Logs,
         Route::Settings => NavItem::Settings,
         Route::Agent => NavItem::Ai,
+        Route::Accounts => NavItem::Account,
     }
 }
diff --git a/crates/app-iced/src/app/state.rs b/crates/app-iced/src/app/state.rs
index 5d83db7..a28809f 100644
--- a/crates/app-iced/src/app/state.rs
+++ b/crates/app-iced/src/app/state.rs
@@ -150,6 +150,12 @@ pub struct App {
     /// 而检索条件与结果（会跨页存活、要被事件写）在 `AppState::content`。放进 `view` 模型也
     /// 不行——`refresh_view` 每次都用快照重建模型，选择会被冲回默认值。
     pub(super) content: pages::content::PageState,
+    /// 账户页的**表单状态**（三条轨道的输入串；密码只活在这一次请求里）。
+    pub(super) account_form: pages::account::Form,
+    /// 账户页视图模型（与 `view` 同一条「状态变了才重建」的门控）。
+    pub(super) account: pages::account::Page,
+    /// 皮肤/头像解码缓存（M114：同一张皮肤只解一次）。
+    pub(super) avatars: pages::account::avatar::Cache,
 }
 
 impl App {
@@ -251,6 +257,15 @@ impl App {
             download_draft: pages::InstallDraft::default(),
             install_cancelled_seen: 0,
             content: pages::content::PageState::default(),
+            account_form: pages::account::Form::new(),
+            account: pages::account::Page::build(
+                &AppState::new(),
+                &pages::account::Form::new(),
+                &mut pages::account::avatar::Cache::default(),
+                unlucky_i18n::Lang::En,
+                width,
+            ),
+            avatars: pages::account::avatar::Cache::default(),
         };
         // 配色来源档可能已经指向一张背景图：那时 `Ui` 必须由解析出的方案构造，而不是 baseline。
         app.rebuild_ui();
@@ -333,7 +348,7 @@ impl App {
         // 草稿同理（M105）：它也是页面自己持有的输入，重建模型时带回去，
         // 否则每来一条事件（连安装进度都算）用户填的加载器就被抹回「原版」。
         let draft = self.download_draft.clone();
-        // 右栗占掉的宽度先扣掉：面板展开时页面按更窄的宽度排版（「收缩而不是溢出」，M104）
+        // 右栏占掉的宽度先扣掉：面板展开时页面按更窄的宽度排版（「收缩而不是溢出」，M104）
         let width = self.agent.content_width(self.width);
         // M106：语言形参跟着 `LangState` 走（`draft` 那一位是 M105 的安装草稿）。
         self.view = super::view::model(
@@ -345,6 +360,16 @@ impl App {
             self.lang(),
             &self.content,
         );
+        // 账户页（M114）：与 `view` 同一次门控重建；皮肤解码走缓存，所以重复重建不重解图。
+        // 语言同样跟着 M106 的 `LangState` 走（M114 早期钉死 `Lang::En` 的写法已删）。
+        let lang = self.lang();
+        self.account = pages::account::Page::build(
+            &self.state,
+            &self.account_form,
+            &mut self.avatars,
+            lang,
+            width,
+        );
         self.view_dirty = false;
         self.refreshes += 1;
     }
diff --git a/crates/app-iced/src/app/update.rs b/crates/app-iced/src/app/update.rs
index 1b583ca..3215568 100644
--- a/crates/app-iced/src/app/update.rs
+++ b/crates/app-iced/src/app/update.rs
@@ -42,6 +42,7 @@ use super::message::{route_of, Message};
 use super::state::{App, IDLE_TICK, TICK, TICK_MS, WATCH_WINDOW};
 use super::CAPTURE_AT_FRAME;
 
+mod account;
 mod agent;
 mod content;
 mod download;
@@ -185,6 +186,7 @@ impl App {
             // M109：直达内容库时补一次检索（与页面内切换同一个入口）
             self.ensure_content_loaded();
         }
+        account::force_account_state(self);
 
         self.auto_select();
         self.view_dirty = true;
@@ -245,6 +247,12 @@ impl App {
         self.state
             .toasts
             .expire(u64::try_from(elapsed.as_millis()).unwrap_or(u64::MAX));
+
+        // 设备码/授权码的倒计时（M114）：等待态每秒都要重画一次，否则「剩 900s」永远不动，
+        // 用户会以为卡死了——这正是任务里「不得只转圈」的那一条。
+        if self.state.device_login.phase == unlucky_presenter::dto::DeviceLoginPhase::Waiting {
+            self.view_dirty = true;
+        }
         // `ticks` 的单位是**33 ms 的一拍**，不是「advance 被调了几次」：空闲心跳一次跨 1 s，
         // 要记 30 拍，这样 `theme::config_poll_due`（30 拍 ≈ 1 秒）在两种时钟下语义一致。
         let ticks = elapsed.as_millis().div_euclid(u128::from(TICK_MS));
@@ -389,6 +397,8 @@ fn env_start_route() -> Option<Route> {
         "agent" => Some(Route::Agent),
         // M109：内容库（截图矩阵要能直达；页面内的四条侧栏不在路由里）
         "content" => Some(Route::Content),
+        // M114：账户页的 D30 矩阵要能直达（`cli.rs` 不在本 mission 的 scope）
+        "accounts" => Some(Route::Accounts),
         _ => None,
     }
 }
diff --git a/crates/app-iced/src/app/update/account.rs b/crates/app-iced/src/app/update/account.rs
new file mode 100644
index 0000000..a167ee9
--- /dev/null
+++ b/crates/app-iced/src/app/update/account.rs
@@ -0,0 +1,156 @@
+//! 账户页消息的落点（M114）：页面只发意图，这里翻成 `AppCommand` 或本地的表单状态写入。
+//!
+//! 三条纪律（与 `update.rs` 同源）：
+//!
+//! 1. **不做乐观回显**：切账户/删账户/登录都只派命令，等 `AccountsChanged` /
+//!    `DeviceLoginChanged` / `AuthlibLoginChanged` 回来才改列表；
+//! 2. **密码只走一次**：`Submit` 把 `AuthlibRequest` 交给后端后立刻清掉表单里的密码
+//!    （成功失败都清——重试用新输入，不在内存里多留一份凭据）；
+//! 3. **表单态是纯 UI 状态**：输入框改动只写 `App::account_form` + 置脏，不派命令。
+
+use unlucky_presenter::dto::{AppCommand, AuthlibRequest};
+
+use crate::pages::account::{Message as Account, Panel, Track};
+
+use super::super::state::App;
+
+impl App {
+    /// 账户页消息。
+    pub(super) fn on_account(&mut self, message: Account) {
+        match message {
+            Account::Open(track) => {
+                self.account_form.open(track);
+                // 微软面板一打开就把「设备码」这条路准备好：用户点开就该看到码或选择按钮，
+                // 而不是再点一次「登录」（面板里的两条流按钮仍然可选）
+                if track == Track::Microsoft && self.state.device_login.phase.visible() {
+                    self.account_form.panel = Panel::Microsoft;
+                }
+                self.view_dirty = true;
+            }
+            Account::Close => {
+                self.account_form.close();
+                // 关面板同时收掉登录任务（避免关掉面板后后台还在轮询、也不会凭空多一个账户）
+                if self.state.device_login.phase.busy() || self.state.authlib_login.phase.busy() {
+                    self.dispatch(AppCommand::CancelDeviceLogin);
+                }
+                self.view_dirty = true;
+            }
+            Account::Server(value) => {
+                self.account_form.server = value;
+                self.view_dirty = true;
+            }
+            Account::Login(value) => {
+                self.account_form.login = value;
+                self.view_dirty = true;
+            }
+            Account::Password(value) => {
+                self.account_form.password = value;
+                self.view_dirty = true;
+            }
+            Account::OfflineName(value) => {
+                self.account_form.offline_name = value;
+                self.view_dirty = true;
+            }
+            Account::Probe => {
+                let server = self.account_form.server.clone();
+                if !server.trim().is_empty() {
+                    self.dispatch(AppCommand::ProbeAuthlibServer(server));
+                }
+            }
+            Account::Submit => match self.account_form.panel {
+                Panel::Offline => {
+                    let name = self.account_form.offline_name.trim().to_string();
+                    if !name.is_empty() {
+                        self.account_form.offline_name.clear();
+                        self.dispatch(AppCommand::AddOfflineAccount(name));
+                    }
+                }
+                Panel::Authlib => {
+                    let ready = self.account_form.authlib_ready();
+                    if ready {
+                        let request = AuthlibRequest::new(
+                            self.account_form.server.clone(),
+                            self.account_form.login.clone(),
+                            std::mem::take(&mut self.account_form.password),
+                        );
+                        self.dispatch(AppCommand::AddAuthlibAccount(request));
+                    }
+                }
+                Panel::Microsoft => self.on_account(Account::StartBrowser),
+                Panel::None => {}
+            },
+            Account::StartDevice => self.dispatch(AppCommand::StartDeviceLogin),
+            Account::StartBrowser => self.dispatch(AppCommand::StartBrowserLogin),
+            Account::Cancel => {
+                self.account_form.close();
+                self.dispatch(AppCommand::CancelDeviceLogin);
+            }
+            Account::Copy(text) => {
+                // 剪贴板只放用户码/链接这类**公开**内容（凭据永不经过这条路径）
+                let _: iced::Task<crate::app::Message> = iced::clipboard::write(text);
+            }
+            Account::Switch(id) => self.dispatch(AppCommand::SwitchAccount(id)),
+            Account::Remove(id) => self.dispatch(AppCommand::RemoveAccount(id)),
+            Account::Relogin => {
+                // 「重新登录」按微软轨的默认流走（授权码 + 系统浏览器）
+                self.account_form.panel = Panel::Microsoft;
+                self.dispatch(AppCommand::StartBrowserLogin);
+            }
+        }
+        self.refresh_view();
+    }
+}
+
+/// 取证开关 `ULL_ACCOUNT_STATE` 的落地：把「很难自然等到」的状态钉死一次。
+///
+/// 为什么需要：设备码过期要等 15 分钟、第三方站表单要手点两下，截图通道等不到。这里只在
+/// **截图模式**下生效（`--screenshot`），交互模式一律不读——与 `ULL_START_ROUTE` 同一口径。
+pub(super) fn force_account_state(app: &mut App) {
+    if !app.has_screenshot() {
+        return;
+    }
+    let Ok(state) = std::env::var("ULL_ACCOUNT_STATE") else {
+        return;
+    };
+    match state.trim().to_lowercase().as_str() {
+        // 设备码已过期：起点往前挪一小时（倒计时自己算出来就是 0）
+        "expired" => {
+            app.state.device_login_started =
+                Some(std::time::Instant::now() - std::time::Duration::from_secs(3_600));
+        }
+        // 第三方站表单：直接把面板打开并预填地址（截图要看到输入框与校验按钮）
+        "authlib" | "authlib-form" => {
+            app.account_form.panel = crate::pages::account::Panel::Authlib;
+            if app.account_form.server.trim().is_empty() {
+                app.account_form.server = "https://littleskin.cn/api/yggdrasil/".to_string();
+            }
+            app.account_form.login = "steve@example.com".to_string();
+            app.account_form.password = "not-a-real-password".to_string();
+        }
+        _ => {}
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::pages::account::{Message as Account, Panel, Track};
+
+    /// 表单态是纯 UI 状态：打开/关闭面板不派命令，但会把面板切对。
+    ///
+    /// 抓得住：`Open` 忘了写 `panel`（点了轨道卡什么都不出现）、`close()` 不清密码。
+    /// 抓不住：真实 dispatch 的副作用（那要真后端）。
+    #[test]
+    fn the_form_state_follows_the_page_messages() {
+        use crate::pages::account::Form;
+        let mut form = Form::new();
+        assert_eq!(form.panel, Panel::None);
+        form.open(Track::Authlib);
+        assert_eq!(form.panel, Panel::Authlib);
+        form.password = "hunter2".to_string();
+        form.close();
+        assert_eq!(form.panel, Panel::None);
+        assert!(form.password.is_empty(), "关闭面板必须把一次性密码清掉");
+
+        let _ = Account::Open(Track::Offline);
+    }
+}
diff --git a/crates/app-iced/src/app/update/page_messages.rs b/crates/app-iced/src/app/update/page_messages.rs
index 75b9c11..4ecea99 100644
--- a/crates/app-iced/src/app/update/page_messages.rs
+++ b/crates/app-iced/src/app/update/page_messages.rs
@@ -88,6 +88,8 @@ impl App {
                 self.view_dirty = true;
                 self.refresh_view();
             }
+            // M114：账户页（三轨登录 / 列表动作 / 表单输入）
+            pages::Message::Account(message) => self.on_account(message),
             // 还没接后端的占位动作：只打日志（哪几个、为什么，见 pages 模块文档的偏离登记）
             pages::Message::Action(action) => {
                 eprintln!("[page] 占位动作 {action:?} pressed（没有对应 AppCommand）");
diff --git a/crates/app-iced/src/app/view.rs b/crates/app-iced/src/app/view.rs
index ecb1f99..05fcbef 100644
--- a/crates/app-iced/src/app/view.rs
+++ b/crates/app-iced/src/app/view.rs
@@ -19,6 +19,7 @@ use super::state::{log_first_frame, App};
 use super::APP_TITLE;
 
 mod logs;
+mod rail;
 
 use logs::logs_model;
 
@@ -55,10 +56,12 @@ impl App {
         // 右栗（M104）：拆出档返回 `None`（会话已在独立页里）；拖拽期间另有铺满窗口的取指针层。
         let overlay = agent::drag_overlay(&self.agent).map(|element| element.map(Message::Agent));
 
+        let account = self.rail_account();
         match pages::Screen::of(self.state.route()) {
             Some(_) => shell::view_with_background(
                 &self.ui,
                 nav_item_of(self.state.route()),
+                &account,
                 APP_TITLE,
                 background,
                 // M101 r2：设置页的只读状态（外观运行期状态 + 各组自己的状态）一次递进去。
@@ -79,10 +82,37 @@ impl App {
                 self.options.force_state,
                 self.lang(),
             ),
-            // `Route::Agent`：独立页与右栗共用同一个 `conversation::view`（`agent::page` 内部调的它）。
+            // 账户页（M114）：它不走 `pages::Screen` 那四页的 `Model`，自己一棵树
+            // （模型在 `App::account`，由 `refresh_view` 按同一条门控重建；宽度用 M104 的
+            // 中栏可用宽，与其它页同源）。
+            None if self.state.route() == &Route::Accounts => shell::view_with_background(
+                &self.ui,
+                NavItem::Account,
+                &account,
+                APP_TITLE,
+                background,
+                pages::account::view(
+                    &self.ui,
+                    pages::layout::frame_metrics(
+                        pages::layout::PaneKit::Single,
+                        self.account.width,
+                    ),
+                    &self.account,
+                    self.lang(),
+                )
+                .map(Message::Page),
+                agent::docked(&self.ui, &self.agent, self.width)
+                    .map(|element| element.map(Message::Agent)),
+                overlay,
+                self.options.force_state,
+                // M106：导航轨标签按当前界面语言取词。
+                self.lang(),
+            ),
+            // `Route::Agent`：独立页与右栏共用同一个 `conversation::view`（`agent::page` 内部调的它）。
             None => shell::view_with_background(
                 &self.ui,
                 NavItem::Ai,
+                &account,
                 APP_TITLE,
                 background,
                 agent::page(&self.ui, &self.agent, self.width).map(Message::Agent),
diff --git a/crates/app-iced/src/app/view/rail.rs b/crates/app-iced/src/app/view/rail.rs
new file mode 100644
index 0000000..e67285d
--- /dev/null
+++ b/crates/app-iced/src/app/view/rail.rs
@@ -0,0 +1,35 @@
+//! 导航轨底部**账户头像位**的状态换算（M114）。
+//!
+//! 为什么单独一个文件：`app/view.rs` 贴着 400 行硬线，而这块逻辑与页面树无关——
+//! 它只回答「轨底那个头像位现在该显示成未登录，还是某个账户」。
+
+use crate::shell;
+
+use super::super::state::App;
+
+/// 导航轨收成「图标条」的窗口高度（M114）。
+///
+/// 判据不是「项数」而是**真实可用高度**：四项 + 底部头像位在 48 标题栏之上还要放得下
+/// 4 × 52 + 4 × 4 + 52 ≈ 300；留出一屏正文的最小高度（424 行宽 + 页头 + 边距），
+/// 低于 720 就把标签收掉，只留图标与头像位（头像位**永远可见**，任务要求）。
+const RAIL_COMPACT_HEIGHT: f32 = 720.0;
+
+impl App {
+    /// 导航轨底部头像位的状态（M114）：未登录 / 已登录两态要一眼能分。
+    pub(super) fn rail_account(&self) -> shell::RailAccount {
+        let compact = self.height < RAIL_COMPACT_HEIGHT;
+        match self.state.active_account() {
+            Some(account) => {
+                shell::RailAccount::signed_in(account.monogram(), account.name.clone())
+                    .compact(compact)
+            }
+            // M106：未登录标签跟着**生效语言**走（早期钉死 `Lang::En` 的写法已删）。
+            None => shell::RailAccount::signed_out(
+                self.lang()
+                    .catalog()
+                    .text(unlucky_i18n::Key::AccountRailSignedOut),
+            )
+            .compact(compact),
+        }
+    }
+}
diff --git a/crates/app-iced/src/components/inputs/field.rs b/crates/app-iced/src/components/inputs/field.rs
index ee9c34d..32a0bad 100644
--- a/crates/app-iced/src/components/inputs/field.rs
+++ b/crates/app-iced/src/components/inputs/field.rs
@@ -15,12 +15,8 @@
 //!
 //! ## 三处口径说明
 //!
-//! 1. **状态差异落在指示线/描边/标签上，容器底色不叠状态层**——这是 A1 文本字段的口径
-//!    （`HoverActiveIndicatorColor` / `FocusActiveIndicatorColor` 等 token），与按钮家族
-//!    「叠一个 8%/10% 的状态层」不同。press 在 A1 里**没有**独立 token，本实现按 hover 处理（登记 D11）。
-//! 2. 标签是「**常浮起**」的两段式：有标签就固定占上面那 16px（`BodySmall`），不做上浮动画
-//!    （M3 的动画由 motion mission 统一接，登记 D12）。
-//! 3. 缺省宽度 `Length::Fill`：文本框在页面里按列宽伸展，最小宽 280 无法在 iced 表达（G21）。
+//! 1. **状态差异落在指示线/描边/标签上，容器底色不叠状态层**（A1 的口径，与按钮家族的 8%/10% 状态层不同）；press 无独立 token，按 hover 处理（D11）。
+//! 2. 标签是「**常浮起**」的两段式（占上面 16px，不做上浮动画，登记 D12）；缺省宽度 `Fill`（最小宽 280 无法在 iced 表达，G21）。
 
 use iced::widget::text::LineHeight;
 use iced::widget::{column, container, row, text, text_input};
@@ -73,6 +69,7 @@ pub struct Field<'a> {
     error: bool,
     state: Option<Interaction>,
     width: Length,
+    secure: bool,
 }
 
 impl<'a> Field<'a> {
@@ -89,6 +86,7 @@ impl<'a> Field<'a> {
             error: false,
             state: None,
             width: Length::Fill,
+            secure: false,
         }
     }
 
@@ -145,6 +143,12 @@ impl<'a> Field<'a> {
         self.width = width;
         self
     }
+
+    /// 密码式输入（M114）：上屏是掩码（明文上屏＝UI 侧凭据泄漏）。
+    pub fn secure(mut self, secure: bool) -> Self {
+        self.secure = secure;
+        self
+    }
 }
 
 /// 一个字段在某一态下的全套颜色（9.4 / 9.7 / 9.8 的落点）。
@@ -269,6 +273,7 @@ pub fn text_field<'a, M: Clone + 'a>(
         } else {
             Some(on_input)
         })
+        .secure(field.secure)
         .size(input_style.size_px)
         .line_height(LineHeight::Absolute(Pixels(input_style.line_height_px)))
         .font(ui.font_of(input_style))
diff --git a/crates/app-iced/src/icons.rs b/crates/app-iced/src/icons.rs
index a814718..b431060 100644
--- a/crates/app-iced/src/icons.rs
+++ b/crates/app-iced/src/icons.rs
@@ -234,6 +234,7 @@ mod tests {
     fn sub_24_boxes_go_through_view_at() {
         const VIEW: &[(&str, usize)] = &[
             ("shell/nav.rs", 1),
+            ("shell/nav/account.rs", 1), // M114：轨底头像位
             ("components/inputs/field.rs", 2),
             ("components/inputs/menu.rs", 2),
             ("components/inputs/search.rs", 2),
@@ -267,7 +268,7 @@ mod tests {
             }
         }
         assert!(bad.is_empty(), "图标入口用法违规：\n{}", bad.join("\n"));
-        assert_eq!(views, 13, "全仓 `icons::view` 调用点总数变了");
+        assert_eq!(views, 14, "`icons::view` 调用点总数变了");
 
         fn sites(list: &[(&str, usize)], rel: &str) -> usize {
             list.iter().find(|(p, _)| *p == rel).map_or(0, |(_, n)| *n)
diff --git a/crates/app-iced/src/pages/account.rs b/crates/app-iced/src/pages/account.rs
new file mode 100644
index 0000000..0f58b42
--- /dev/null
+++ b/crates/app-iced/src/pages/account.rs
@@ -0,0 +1,149 @@
+//! 账户页（M114）：**三轨**登录（微软正版 / 第三方皮肤站 / 本地档案）+ 账户列表 + 皮肤区。
+//!
+//! ## 这一页回答什么
+//!
+//! 用户的原话是「用户管理页面还没做吗？包括不限于正版登录 离线登录 第三方皮肤站登录」。
+//! Slint 版曾有这个页面（`DevDocs/ops/screens-m43/account-data.png`），换 iced 时没搬过来，
+//! 于是 iced 版**一个账户入口都没有**——本页就是把它补回来，并按 M114 的口径做成三轨。
+//!
+//! ## 四条红线（都在本页的断言里）
+//!
+//! | 红线 | 落点 |
+//! |---|---|
+//! | 页面不得出现任何 token / refresh_token | 上屏文案只来自 [`model`] 的公开字段；`tests` 里有「把 JWT 塞进事件、断言模型干净」的用例 |
+//! | 离线档案的说明必须带「仅本地/隔离网络测试用，无法连接启用正版验证的服务器」 | `Key::AccountTrackOfflineBody` / `Key::AccountOfflineWarning` 两处都写全 |
+//! | 设备码不得只转圈 | [`login`]：用户码 + 链接 + 倒计时 + 「已过期，重试」 |
+//! | 没有皮肤不给假皮肤 | 头像位 = 首字母块（`profile_id` 稳定取色）；第三方轨才可能出真图 |
+//!
+//! ## 模块
+//!
+//! | 文件 | 职责 |
+//! |---|---|
+//! | [`model`] | 状态 → 视图模型（列表行 / 当前账户 / 三条轨道的面板态） |
+//! | [`avatar`] | 首字母块 + 皮肤图（解码/裁剪缓存；失败一律退回首字母块，**绝不白块**） |
+//! | [`widgets`] | 本页的小件（头像块 / 章节标题 / 徽标），样式全部走令牌 |
+//! | [`rows`] | 当前账户卡片 + 账户列表行 |
+//! | [`forms`] | 三条轨道的入口卡 + 本地档案/第三方站表单 |
+//! | [`login`] | 微软登录面板（设备码倒计时 / 浏览器授权 / 失败态） |
+//! | `tests` | 视图模型的判据（凭据红线、空态、倒计时、皮肤回落） |
+
+pub mod avatar;
+pub mod forms;
+pub mod login;
+pub mod model;
+pub mod panels;
+pub mod rows;
+pub mod widgets;
+
+#[cfg(test)]
+mod tests;
+
+pub use model::{Form, Page, Panel, Track};
+
+use iced::widget::{column, scrollable};
+use iced::{Element, Length};
+
+use unlucky_design::spacing::Space;
+use unlucky_i18n::{Key, Lang};
+
+use crate::app::components::buttons::{self, Button};
+use crate::pages::frame::{self, Header};
+use crate::pages::layout::FrameMetrics;
+use crate::theme::Ui;
+
+use super::Message as PageMessage;
+
+/// 账户页的页面消息（app 层把它翻成 `AppCommand` / 状态写入）。
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Message {
+    /// 打开某条轨道的表单
+    Open(Track),
+    /// 关掉表单/登录面板
+    Close,
+    /// 第三方站地址输入
+    Server(String),
+    /// 登录名输入
+    Login(String),
+    /// 密码输入（只存在内存里，随请求交给 host，用完即弃）
+    Password(String),
+    /// 本地档案名输入
+    OfflineName(String),
+    /// 校验服务器地址（服务发现）
+    Probe,
+    /// 表单提交（本地档案 → 建档案；第三方站 → 登录）
+    Submit,
+    /// 微软：设备码流
+    StartDevice,
+    /// 微软：授权码流（拉起系统浏览器）
+    StartBrowser,
+    /// 取消/关掉登录面板
+    Cancel,
+    /// 复制一段文本（用户码 / 链接）
+    Copy(String),
+    /// 切换当前启动账户
+    Switch(String),
+    /// 删除账户
+    Remove(String),
+    /// 重新登录（微软轨 → 授权码流）
+    Relogin,
+}
+
+impl Message {
+    /// 包成页面的消息（本模块内部与 app 层都用它，保证只有一处包装点）。
+    pub fn into_page(self) -> PageMessage {
+        PageMessage::Account(self)
+    }
+}
+
+/// 整页。
+pub fn view<'a>(
+    ui: &'a Ui,
+    metrics: FrameMetrics,
+    page: &'a Page,
+    lang: Lang,
+) -> Element<'a, PageMessage> {
+    let text = lang.catalog();
+    let subtitle = text.text(Key::AccountSubtitle);
+    let add = text.text(Key::AccountEmptyAction);
+    let header = Header::new(text.text(Key::AccountTitle))
+        .subtitle(subtitle)
+        .action(buttons::tonal(
+            ui,
+            Button::new(add, Message::Open(Track::Microsoft).into_page()),
+        ));
+
+    let top = if page.rows.is_empty() {
+        forms::empty(ui, text, lang)
+    } else {
+        column![
+            rows::active_card(ui, page, text, lang),
+            rows::list(ui, page, text, lang),
+        ]
+        .spacing(ui.space(Space::X6))
+        .into()
+    };
+
+    // 三条轨道入口 + 表单/登录面板：面板存在时**只画面板**，且**置顶**——
+    // 否则在 1180×760 下设备码的「复制用户码 / 取消」会掉到折线以下（D30 复审实测）。
+    let flows = match page.panel {
+        Panel::None => forms::tracks(ui, text, lang),
+        _ => forms::panel(ui, page, text, lang),
+    };
+
+    let mut content = column![].spacing(ui.space(Space::X6)).width(Length::Fill);
+    content = if page.panel == Panel::None {
+        content.push(top).push(flows)
+    } else {
+        content.push(flows).push(top)
+    };
+
+    frame::page(
+        ui,
+        metrics,
+        header,
+        scrollable(content)
+            .style(frame::scroll_style(ui))
+            .width(Length::Fill)
+            .height(Length::Fill),
+    )
+}
diff --git a/crates/app-iced/src/pages/account/avatar.rs b/crates/app-iced/src/pages/account/avatar.rs
new file mode 100644
index 0000000..5003eb3
--- /dev/null
+++ b/crates/app-iced/src/pages/account/avatar.rs
@@ -0,0 +1,205 @@
+//! 头像位与皮肤区：**首字母块**（无皮肤时）与**真图**（第三方轨抓到皮肤时）。
+//!
+//! ## 为什么头像可以「真有图」
+//!
+//! presenter 只把皮肤的 **PNG 原图**送到 UI（它不引入图片解码依赖），裁剪/缩放全部在这里做：
+//! Minecraft 皮肤的头部在 `(8,8)` 的 8×8 方块（64×64 皮肤），帽子层在 `(40,8)`，
+//! 两层贴起来再放大到 64×64 就是一张真正的头像。**解码失败一律退回首字母块**——
+//! 头像位不允许出现白块（M114 明文要求）。
+//!
+//! ## 依赖口径
+//!
+//! 用的是 `crates/app-iced/Cargo.toml` **既有**的 `image`（png feature，M93 背景图那一条），
+//! 本 mission 没有改任何依赖表。
+
+use std::collections::BTreeMap;
+
+use iced::widget::image;
+
+use unlucky_presenter::dto::SkinImage;
+
+/// 头像边长（像素）：列表行 40、当前账户卡片 56 共用同一张 64 的图（缩下来仍然清晰）。
+const HEAD_PX: u32 = 64;
+/// 皮肤原图的头部坐标（64×64 皮肤的标准布局）。
+const FACE: (u32, u32) = (8, 8);
+/// 帽子/头发层的坐标（叠在脸上一层）。
+const HAT: (u32, u32) = (40, 8);
+/// 头部方块边长（8×8）。
+const FACE_EDGE: u32 = 8;
+
+/// 一个账户的解码结果（失败就是两个 `None`，UI 画首字母块）。
+#[derive(Debug, Clone, Default, PartialEq)]
+pub struct Avatar {
+    /// 裁好的头像（64×64 RGBA）
+    pub head: Option<image::Handle>,
+    /// 皮肤原图（皮肤预览区用）
+    pub skin: Option<image::Handle>,
+}
+
+/// 解码缓存：同一个账户的同一张皮肤只解码一次。
+///
+/// 键 = 账户 id，值 = (皮肤来源串, 解码结果)。来源串变了（重新登录换了皮肤）就重解。
+#[derive(Debug, Default)]
+pub struct Cache {
+    entries: BTreeMap<String, (String, Avatar)>,
+}
+
+impl Cache {
+    /// 取某个账户的头像（必要时解码）。
+    pub fn resolve(&mut self, id: &str, skin: Option<&SkinImage>) -> Avatar {
+        let source = skin.map(|skin| skin.source.clone()).unwrap_or_default();
+        let empty = skin.is_none_or(SkinImage::is_empty);
+        if empty {
+            // 没有皮肤 = 没有图（离线轨永远走这条；**不给假皮肤**）
+            self.entries.remove(id);
+            return Avatar::default();
+        }
+        if let Some((cached_source, avatar)) = self.entries.get(id) {
+            if cached_source == &source {
+                return avatar.clone();
+            }
+        }
+        let decoded = skin.map(decode).unwrap_or_default();
+        self.entries
+            .insert(id.to_string(), (source, decoded.clone()));
+        decoded
+    }
+
+    /// 当前缓存条目数（单测与诊断用）。
+    #[must_use]
+    pub fn len(&self) -> usize {
+        self.entries.len()
+    }
+
+    /// 缓存是否为空。
+    #[must_use]
+    pub fn is_empty(&self) -> bool {
+        self.entries.is_empty()
+    }
+}
+
+/// PNG 皮肤 → 头像（裁 + 叠帽子层 + 放大）。
+fn decode(skin: &SkinImage) -> Avatar {
+    let Some(decoded) = decode_png(&skin.png) else {
+        return Avatar::default();
+    };
+    let (width, height) = (decoded.width(), decoded.height());
+    // 旧版皮肤是 64×32：没有帽子层，只有脸
+    if width < FACE.0 + FACE_EDGE || height < FACE.1 + FACE_EDGE {
+        return Avatar::default();
+    }
+    let mut face =
+        ::image::imageops::crop_imm(&decoded, FACE.0, FACE.1, FACE_EDGE, FACE_EDGE).to_image();
+    if width >= HAT.0 + FACE_EDGE && height >= HAT.1 + FACE_EDGE {
+        let hat =
+            ::image::imageops::crop_imm(&decoded, HAT.0, HAT.1, FACE_EDGE, FACE_EDGE).to_image();
+        ::image::imageops::overlay(&mut face, &hat, 0, 0);
+    }
+    let scaled = ::image::imageops::resize(
+        &face,
+        HEAD_PX,
+        HEAD_PX,
+        ::image::imageops::FilterType::Nearest,
+    );
+    Avatar {
+        head: Some(image::Handle::from_rgba(
+            HEAD_PX,
+            HEAD_PX,
+            scaled.into_raw(),
+        )),
+        // 皮肤预览用**原图**（64×64）：tower 口径是「原图直接展示，不为好看伪造皮肤」
+        skin: Some(image::Handle::from_bytes(skin.png.clone())),
+    }
+}
+
+/// 解 PNG（尺寸上限与背景图那条守门同源：皮肤不该有超大图）。
+fn decode_png(bytes: &[u8]) -> Option<::image::RgbaImage> {
+    const MAX_EDGE: u32 = 512;
+    let reader = ::image::ImageReader::new(std::io::Cursor::new(bytes))
+        .with_guessed_format()
+        .ok()?;
+    let (width, height) = reader.into_dimensions().ok()?;
+    if width == 0 || height == 0 || width > MAX_EDGE || height > MAX_EDGE {
+        return None;
+    }
+    let reader = ::image::ImageReader::new(std::io::Cursor::new(bytes))
+        .with_guessed_format()
+        .ok()?;
+    Some(reader.decode().ok()?.to_rgba8())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use ::image::ImageEncoder;
+    use ::image::{Rgba, RgbaImage};
+
+    fn png_of(image: &RgbaImage) -> Vec<u8> {
+        let mut bytes = Vec::new();
+        let encoder = ::image::codecs::png::PngEncoder::new(&mut bytes);
+        encoder
+            .write_image(
+                image.as_raw(),
+                image.width(),
+                image.height(),
+                ::image::ExtendedColorType::Rgba8,
+            )
+            .expect("编码 PNG");
+        bytes
+    }
+
+    /// 造一张 64×64 的皮肤：脸是红色，帽子层是半透明蓝。
+    fn skin_bytes() -> Vec<u8> {
+        let mut skin = RgbaImage::from_pixel(64, 64, Rgba([0, 0, 0, 0]));
+        for x in 8..16 {
+            for y in 8..16 {
+                skin.put_pixel(x, y, Rgba([200, 10, 10, 255]));
+            }
+        }
+        for x in 40..48 {
+            for y in 8..16 {
+                skin.put_pixel(x, y, Rgba([10, 10, 200, 120]));
+            }
+        }
+        png_of(&skin)
+    }
+
+    #[test]
+    fn a_real_skin_becomes_a_head_with_the_hat_layer() {
+        let avatar = decode(&SkinImage {
+            png: skin_bytes(),
+            source: "test".to_string(),
+        });
+        assert!(avatar.head.is_some(), "64×64 皮肤必须裁出头像");
+        assert!(avatar.skin.is_some(), "皮肤预览要有原图");
+    }
+
+    #[test]
+    fn a_broken_payload_falls_back_instead_of_panicking() {
+        let avatar = decode(&SkinImage {
+            png: b"not a png".to_vec(),
+            source: "test".to_string(),
+        });
+        assert!(avatar.head.is_none(), "解不开就退回首字母块");
+        assert!(avatar.skin.is_none());
+    }
+
+    #[test]
+    fn the_cache_keeps_one_entry_per_account_and_drops_it_without_a_skin() {
+        let mut cache = Cache::default();
+        let skin = SkinImage {
+            png: skin_bytes(),
+            source: "a".to_string(),
+        };
+        let first = cache.resolve("account:a", Some(&skin));
+        assert!(first.head.is_some());
+        assert_eq!(cache.len(), 1);
+        // 同一来源：命中缓存
+        let again = cache.resolve("account:a", Some(&skin));
+        assert!(again.head.is_some());
+        // 没有皮肤：条目被删掉（不留「上次的图」冒充真皮肤）
+        let none = cache.resolve("account:a", None);
+        assert!(none.head.is_none());
+        assert!(cache.is_empty());
+    }
+}
diff --git a/crates/app-iced/src/pages/account/forms.rs b/crates/app-iced/src/pages/account/forms.rs
new file mode 100644
index 0000000..2a754ce
--- /dev/null
+++ b/crates/app-iced/src/pages/account/forms.rs
@@ -0,0 +1,328 @@
+//! 三条轨道的入口卡与两张表单（本地档案 / 第三方皮肤站）。
+//!
+//! ## 为什么是「三条轨道」而不是「一个添加按钮 + 一个类型下拉」
+//!
+//! 三条轨道的**字段完全不同**（微软没有密码输入框、本地档案没有服务器、第三方站两样都有），
+//! 而且失败原因也不同（403 / 白名单未批 / 服务器不可达）。把它们压进一个表单只会让每种情况
+//! 都要解释自己不属于另外两种——所以入口就是三张卡，各自展开自己的面板。
+
+use iced::widget::{column, container, row};
+use iced::{Alignment, Element, Length};
+
+use unlucky_design::color::Role;
+use unlucky_design::spacing::Space;
+use unlucky_design::typography::TypeRole;
+use unlucky_i18n::{Catalog, Key, Lang};
+
+use crate::app::components::buttons::{self, Button};
+use crate::app::components::feedback::empty_state::{empty_state, EmptyState};
+use crate::app::components::inputs::{text_field, Field, FieldVariant};
+use crate::pages::frame;
+use crate::theme::Ui;
+
+use crate::pages::account::model::{AuthlibPanel, Page, Track};
+use crate::pages::Message as PageMessage;
+
+use super::{login, widgets, Message as Account};
+
+/// 空态：不是一张白页——标题 + 说明 + **三条轨道的直达入口**。
+pub fn empty<'a>(ui: &'a Ui, catalog: Catalog, lang: Lang) -> Element<'a, PageMessage> {
+    let mut actions = row![]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center);
+    for track in Track::ALL {
+        // 三个按钮各用**轨道的名字**做标签（三条都叫「登录」的话，用户分不清点哪个）
+        actions = actions.push(buttons::tonal(
+            ui,
+            Button::new(
+                catalog.text(track.title_key()),
+                Account::Open(track).into_page(),
+            ),
+        ));
+    }
+
+    let state = empty_state(
+        ui,
+        EmptyState::new(
+            unlucky_design::icons::IconKind::User,
+            catalog.text(Key::AccountEmptyTitle),
+            catalog.text(Key::AccountEmptyBody),
+        ),
+    );
+    let _ = lang;
+    column![
+        container(state).height(Length::Fixed(ui.space(Space::X8) * 8.0)),
+        container(actions)
+            .width(Length::Fill)
+            .align_x(Alignment::Center)
+            .center_x(Length::Fill),
+    ]
+    .spacing(ui.space(Space::X4))
+    .width(Length::Fill)
+    .into()
+}
+
+/// 三条轨道的入口卡（面板没打开时画这一排）。
+pub fn tracks<'a>(ui: &'a Ui, catalog: Catalog, lang: Lang) -> Element<'a, PageMessage> {
+    let _ = lang;
+    let mut row = iced::widget::Row::new().spacing(ui.space(Space::X4));
+    for track in Track::ALL {
+        row = row.push(track_card(ui, track, catalog));
+    }
+    row.width(Length::Fill).into()
+}
+
+fn track_card<'a>(ui: &'a Ui, track: Track, catalog: Catalog) -> Element<'a, PageMessage> {
+    let body = column![
+        frame::text_role(
+            ui,
+            TypeRole::TitleSmall,
+            true,
+            catalog.text(track.title_key()),
+            ui.color(Role::OnSurface),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            catalog.text(track.body_key()),
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        buttons::outlined(
+            ui,
+            Button::new(
+                catalog.text(track.action_key()),
+                Account::Open(track).into_page(),
+            ),
+        ),
+    ]
+    .spacing(ui.space(Space::X3));
+    container(frame::card(ui, body))
+        .width(Length::FillPortion(1))
+        .into()
+}
+
+/// 当前打开的面板。
+pub fn panel<'a>(
+    ui: &'a Ui,
+    page: &'a Page,
+    catalog: Catalog,
+    lang: Lang,
+) -> Element<'a, PageMessage> {
+    let _ = lang;
+    match page.panel {
+        crate::pages::account::model::Panel::None => tracks(ui, catalog, Lang::En),
+        crate::pages::account::model::Panel::Microsoft => login::panel(ui, &page.device, catalog),
+        crate::pages::account::model::Panel::Authlib => authlib_form(ui, page, catalog),
+        crate::pages::account::model::Panel::Offline => offline_form(ui, page, catalog),
+    }
+}
+
+/// 本地档案表单（**说明里带「仅本地/隔离网络测试用」这条限定**）。
+fn offline_form<'a>(ui: &'a Ui, page: &'a Page, catalog: Catalog) -> Element<'a, PageMessage> {
+    let ready = page.form.offline_ready();
+    let submit = if ready {
+        buttons::filled(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountOfflineSubmit),
+                Account::Submit.into_page(),
+            ),
+        )
+    } else {
+        buttons::filled(
+            ui,
+            Button::disabled(catalog.text(Key::AccountOfflineSubmit)),
+        )
+    };
+
+    let body = column![
+        widgets::section(
+            ui,
+            catalog.text(Key::AccountTrackOfflineTitle),
+            Some(catalog.text(Key::AccountTrackOfflineBody)),
+        ),
+        warning(ui, catalog.text(Key::AccountOfflineWarning)),
+        text_field(
+            ui,
+            Field::new(&page.form.offline_name)
+                .variant(FieldVariant::Outlined)
+                .label(catalog.text(Key::AccountOfflineNameLabel))
+                .placeholder(catalog.text(Key::AccountOfflineNameHint))
+                .supporting(catalog.text(Key::AccountOfflineNameHint)),
+            |value| Account::OfflineName(value).into_page(),
+        ),
+        row![
+            submit,
+            buttons::text(
+                ui,
+                Button::new(
+                    catalog.text(Key::AccountDialogClose),
+                    Account::Close.into_page()
+                )
+            ),
+        ]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center),
+    ]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
+
+/// 第三方站表单：地址（可单独校验）+ 登录名 + 密码 + 登录。
+fn authlib_form<'a>(ui: &'a Ui, page: &'a Page, catalog: Catalog) -> Element<'a, PageMessage> {
+    let busy = page.authlib.busy();
+    let ready = page.form.authlib_ready() && !busy;
+
+    let submit = if ready {
+        buttons::filled(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountAuthlibSubmit),
+                Account::Submit.into_page(),
+            ),
+        )
+    } else {
+        buttons::filled(
+            ui,
+            Button::disabled(catalog.text(Key::AccountAuthlibSubmit)),
+        )
+    };
+
+    let mut body = column![
+        widgets::section(
+            ui,
+            catalog.text(Key::AccountTrackAuthlibTitle),
+            Some(catalog.text(Key::AccountTrackAuthlibBody)),
+        ),
+        text_field(
+            ui,
+            Field::new(&page.form.server)
+                .variant(FieldVariant::Outlined)
+                .label(catalog.text(Key::AccountServerLabel))
+                .placeholder(catalog.text(Key::AccountServerHint))
+                .supporting(if page.checked_server.is_empty() {
+                    catalog.text(Key::AccountServerHint)
+                } else {
+                    page.checked_server.as_str()
+                }),
+            |value| Account::Server(value).into_page(),
+        ),
+        text_field(
+            ui,
+            Field::new(&page.form.login)
+                .variant(FieldVariant::Outlined)
+                .label(catalog.text(Key::AccountLoginNameLabel))
+                .placeholder(""),
+            |value| Account::Login(value).into_page(),
+        ),
+        text_field(
+            ui,
+            Field::new(&page.form.password)
+                .variant(FieldVariant::Outlined)
+                .label(catalog.text(Key::AccountPasswordLabel))
+                .supporting(catalog.text(Key::AccountPasswordHint))
+                // 密码**掩码**显示：明文只在内存里，不上屏
+                .secure(true),
+            |value| Account::Password(value).into_page(),
+        ),
+        status_line(ui, page, catalog),
+        row![
+            buttons::outlined(
+                ui,
+                Button::new(
+                    catalog.text(Key::AccountServerProbe),
+                    Account::Probe.into_page()
+                )
+            ),
+            submit,
+            buttons::text(
+                ui,
+                Button::new(
+                    catalog.text(Key::AccountDialogClose),
+                    Account::Close.into_page()
+                )
+            ),
+        ]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center),
+    ]
+    .spacing(ui.space(Space::X3));
+
+    if !ready && !busy {
+        body = body.push(frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            catalog.text(Key::AccountAuthlibIdleHint),
+            ui.color(Role::OnSurfaceVariant),
+        ));
+    }
+    frame::card(ui, body)
+}
+
+/// 第三方轨的状态行（校验通过 / 进行中 / 失败原文）。
+///
+/// 进行中与通过都走 **i18n**：presenter 给的 `message` 是后端诊断串（中文），
+/// 直接上屏会让英文界面里混一段中文；失败态才用它（那是要人读的错误原因）。
+fn status_line<'a>(ui: &'a Ui, page: &'a Page, catalog: Catalog) -> Element<'a, PageMessage> {
+    match &page.authlib {
+        AuthlibPanel::Idle => frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            "",
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        AuthlibPanel::Running { .. } => frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            false,
+            catalog.text(Key::AccountServerChecking),
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        AuthlibPanel::Ready { server_name, .. } => frame::text_role_owned(
+            ui,
+            TypeRole::LabelMedium,
+            true,
+            catalog.render(Key::AccountServerOk, &[("server", server_name.as_str())]),
+            ui.color(Role::Primary),
+        ),
+        AuthlibPanel::Failed { message } => frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            false,
+            message,
+            ui.color(Role::Error),
+        ),
+        AuthlibPanel::Succeeded { name } => frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            true,
+            name,
+            ui.color(Role::Primary),
+        ),
+    }
+}
+
+/// 「仅本地/隔离网络测试用」这条限定：**带色块**，不是一句灰字（用户要点得明白）。
+fn warning<'a>(ui: &'a Ui, text: &'a str) -> Element<'a, PageMessage> {
+    container(frame::text_role(
+        ui,
+        TypeRole::BodySmall,
+        false,
+        text,
+        ui.color(Role::OnErrorContainer),
+    ))
+    .width(Length::Fill)
+    .padding(ui.space(Space::X2))
+    .style(move |_theme| container::Style {
+        background: Some(iced::Background::Color(ui.color(Role::ErrorContainer))),
+        border: iced::Border {
+            radius: ui.radius_dp(unlucky_design::shape::ShapeScale::Small),
+            ..iced::Border::default()
+        },
+        ..container::Style::default()
+    })
+    .into()
+}
diff --git a/crates/app-iced/src/pages/account/login.rs b/crates/app-iced/src/pages/account/login.rs
new file mode 100644
index 0000000..eccb9a9
--- /dev/null
+++ b/crates/app-iced/src/pages/account/login.rs
@@ -0,0 +1,349 @@
+//! 微软登录面板：设备码（用户码 + 链接 + **倒计时** + 过期重试）与授权码（浏览器 + 可复制链接 + 取消）。
+//!
+//! ## 为什么不是「一个转圈」
+//!
+//! 设备码流的等待期可以长到 15 分钟。只画转圈的话，用户既不知道要做什么、也不知道还剩多久，
+//! 更不知道已经过期了——M114 把这三件事都做成可见状态：用户码（可复制）、链接（可复制/打开）、
+//! 倒计时（`{secs}s left`）与过期后的「已过期，重试」。授权码流同理，另外必须能**取消**。
+
+use iced::widget::{column, container, row};
+use iced::{Alignment, Background, Border, Element, Length};
+
+use unlucky_design::color::Role;
+use unlucky_design::shape::ShapeScale;
+use unlucky_design::spacing::Space;
+use unlucky_design::typography::TypeRole;
+use unlucky_i18n::{Catalog, Key};
+
+use crate::app::components::buttons::{self, Button};
+use crate::pages::frame;
+use crate::theme::Ui;
+
+use crate::pages::account::model::DevicePanel;
+use crate::pages::Message as PageMessage;
+
+use super::Message as Account;
+
+/// 微软登录面板。
+pub fn panel<'a>(
+    ui: &'a Ui,
+    device: &'a DevicePanel,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    match device {
+        DevicePanel::Hidden => idle(ui, catalog),
+        DevicePanel::Requesting { message } => notice(ui, message, catalog),
+        DevicePanel::Code {
+            code,
+            link,
+            remaining,
+            expired,
+            ..
+        } => device_code(ui, code, link, *remaining, *expired, catalog),
+        DevicePanel::Browser {
+            link,
+            remaining,
+            expired,
+            ..
+        } => browser(ui, link, *remaining, *expired, catalog),
+        DevicePanel::Failed { message } => failed(ui, message, catalog),
+        DevicePanel::Succeeded { name } => succeeded(ui, name, catalog),
+    }
+}
+
+/// 空闲：给出两条流的入口（GUI 默认授权码流，设备码是备选）。
+fn idle<'a>(ui: &'a Ui, catalog: Catalog) -> Element<'a, PageMessage> {
+    let body = column![row![
+        buttons::filled(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceBrowser),
+                Account::StartBrowser.into_page(),
+            )
+        ),
+        buttons::outlined(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceUseCode),
+                Account::StartDevice.into_page(),
+            )
+        ),
+        buttons::text(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceCancel),
+                Account::Close.into_page()
+            )
+        ),
+    ]
+    .spacing(ui.space(Space::X2))
+    .align_y(Alignment::Center),]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
+
+/// 「正在申请/正在校验」：一句状态 + 取消。
+fn notice<'a>(ui: &'a Ui, message: &'a str, catalog: Catalog) -> Element<'a, PageMessage> {
+    let body = column![
+        frame::text_role(
+            ui,
+            TypeRole::BodyMedium,
+            false,
+            message,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        row![buttons::text(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceCancel),
+                Account::Cancel.into_page()
+            )
+        )]
+        .align_y(Alignment::Center),
+    ]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
+
+/// 设备码等待态：**码 + 链接 + 倒计时**。
+fn device_code<'a>(
+    ui: &'a Ui,
+    code: &'a str,
+    link: &'a str,
+    remaining: Option<u64>,
+    expired: bool,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    let mut actions = row![
+        buttons::tonal(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceCodeCopy),
+                Account::Copy(code.to_string()).into_page(),
+            )
+        ),
+        buttons::outlined(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceLinkCopy),
+                Account::Copy(link.to_string()).into_page(),
+            )
+        ),
+    ]
+    .spacing(ui.space(Space::X2))
+    .align_y(Alignment::Center);
+
+    if expired {
+        actions = actions.push(buttons::filled(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceRetry),
+                Account::StartDevice.into_page(),
+            ),
+        ));
+    }
+    actions = actions.push(buttons::text(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountDeviceCancel),
+            Account::Cancel.into_page(),
+        ),
+    ));
+
+    let countdown = countdown_line(ui, remaining, expired, catalog);
+
+    let body = column![
+        frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            false,
+            catalog.text(Key::AccountDeviceCodeLabel),
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::HeadlineSmall,
+            true,
+            code,
+            ui.color(Role::OnSurface),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            link,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        countdown,
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            catalog.text(Key::AccountDeviceHint),
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        actions,
+    ]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
+
+/// 授权码等待态：浏览器已拉起，链接可复制；过期可重试。
+fn browser<'a>(
+    ui: &'a Ui,
+    link: &'a str,
+    remaining: Option<u64>,
+    expired: bool,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    let mut actions = row![buttons::outlined(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountDeviceLinkCopy),
+            Account::Copy(link.to_string()).into_page(),
+        )
+    )]
+    .spacing(ui.space(Space::X2))
+    .align_y(Alignment::Center);
+    if expired {
+        actions = actions.push(buttons::filled(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDeviceRetry),
+                Account::StartBrowser.into_page(),
+            ),
+        ));
+    }
+    actions = actions.push(buttons::text(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountDeviceCancel),
+            Account::Cancel.into_page(),
+        ),
+    ));
+
+    let body = column![
+        frame::text_role(
+            ui,
+            TypeRole::BodyMedium,
+            false,
+            catalog.text(Key::AccountDeviceBrowserHint),
+            ui.color(Role::OnSurface),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            link,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        countdown_line(ui, remaining, expired, catalog),
+        actions,
+    ]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
+
+/// 倒计时 / 过期提示（**这一行是「不得只转圈」的落点**）。
+fn countdown_line<'a>(
+    ui: &'a Ui,
+    remaining: Option<u64>,
+    expired: bool,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    if expired {
+        return frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            true,
+            catalog.text(Key::AccountDeviceExpired),
+            ui.color(Role::Error),
+        );
+    }
+    let text = remaining.map_or_else(String::new, |secs| {
+        catalog.render(Key::AccountDeviceCountdown, &[("secs", &secs.to_string())])
+    });
+    frame::text_role_owned(
+        ui,
+        TypeRole::LabelMedium,
+        false,
+        text,
+        ui.color(Role::OnSurfaceVariant),
+    )
+}
+
+/// 失败态（`ErrorContainer` 面板：不是一句灰字）。
+fn failed<'a>(ui: &'a Ui, message: &'a str, catalog: Catalog) -> Element<'a, PageMessage> {
+    let body = column![
+        frame::text_role(
+            ui,
+            TypeRole::TitleSmall,
+            true,
+            catalog.text(Key::AccountLoginFailed),
+            ui.color(Role::OnErrorContainer),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::BodyMedium,
+            false,
+            message,
+            ui.color(Role::OnErrorContainer),
+        ),
+        row![
+            buttons::tonal(
+                ui,
+                Button::new(
+                    catalog.text(Key::AccountDeviceRetry),
+                    Account::StartDevice.into_page(),
+                )
+            ),
+            buttons::text(
+                ui,
+                Button::new(
+                    catalog.text(Key::AccountDialogClose),
+                    Account::Close.into_page()
+                )
+            ),
+        ]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center),
+    ]
+    .spacing(ui.space(Space::X3));
+
+    container(body)
+        .width(Length::Fill)
+        .padding(ui.metrics().card_padding)
+        .style(move |_theme| container::Style {
+            background: Some(Background::Color(ui.color(Role::ErrorContainer))),
+            border: Border {
+                radius: ui.radius_dp(ShapeScale::Medium),
+                ..Border::default()
+            },
+            ..container::Style::default()
+        })
+        .into()
+}
+
+/// 成功态。
+fn succeeded<'a>(ui: &'a Ui, name: &'a str, catalog: Catalog) -> Element<'a, PageMessage> {
+    let text = format!("{} · {name}", catalog.text(Key::AccountActiveChip));
+    let body = column![
+        frame::text_role_owned(
+            ui,
+            TypeRole::BodyMedium,
+            true,
+            text,
+            ui.color(Role::OnSurface),
+        ),
+        row![buttons::text(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountDialogClose),
+                Account::Close.into_page()
+            )
+        )]
+        .align_y(Alignment::Center),
+    ]
+    .spacing(ui.space(Space::X3));
+    frame::card(ui, body)
+}
diff --git a/crates/app-iced/src/pages/account/model.rs b/crates/app-iced/src/pages/account/model.rs
new file mode 100644
index 0000000..1820750
--- /dev/null
+++ b/crates/app-iced/src/pages/account/model.rs
@@ -0,0 +1,278 @@
+//! 状态 → 账户页视图模型（页面层不认识 presenter 的其它类型，只认这里）。
+//!
+//! 三条轨道在 UI 上只有三种「面板」：微软登录面板 / 第三方站表单 / 本地档案表单。
+//! 表单里那些**输入串**是纯 UI 状态，归 [`Form`]（app 层持有）；从 presenter 来的只有
+//! 账户列表、登录进度与倒计时。
+
+use iced::widget::image;
+
+use unlucky_i18n::{Key, Lang};
+use unlucky_presenter::dto::{AccountKind, AccountView};
+use unlucky_presenter::state::AppState;
+
+use super::avatar::{Avatar, Cache};
+use super::panels::{authlib_panel, device_panel};
+
+pub use super::panels::{AuthlibPanel, DevicePanel};
+
+/// 三条轨道。
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Track {
+    /// 微软正版（设备码 / 授权码两条流）
+    Microsoft,
+    /// 第三方皮肤站（authlib-injector）
+    Authlib,
+    /// 本地档案（离线）
+    Offline,
+}
+
+impl Track {
+    /// 卡片标题的 key。
+    #[must_use]
+    pub const fn title_key(self) -> Key {
+        match self {
+            Self::Microsoft => Key::AccountTrackMicrosoftTitle,
+            Self::Authlib => Key::AccountTrackAuthlibTitle,
+            Self::Offline => Key::AccountTrackOfflineTitle,
+        }
+    }
+
+    /// 卡片说明的 key。
+    #[must_use]
+    pub const fn body_key(self) -> Key {
+        match self {
+            Self::Microsoft => Key::AccountTrackMicrosoftBody,
+            Self::Authlib => Key::AccountTrackAuthlibBody,
+            Self::Offline => Key::AccountTrackOfflineBody,
+        }
+    }
+
+    /// 卡片主按钮的 key（微软/第三方是「登录」，本地是「创建档案」）。
+    #[must_use]
+    pub const fn action_key(self) -> Key {
+        match self {
+            Self::Microsoft => Key::AccountTrackOpen,
+            Self::Authlib => Key::AccountTrackOpen,
+            Self::Offline => Key::AccountTrackCreate,
+        }
+    }
+
+    /// 三条轨道（卡片顺序）。
+    pub const ALL: [Track; 3] = [Track::Microsoft, Track::Authlib, Track::Offline];
+}
+
+/// 当前打开的面板。
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
+pub enum Panel {
+    /// 只画三条轨道入口
+    #[default]
+    None,
+    /// 微软登录面板
+    Microsoft,
+    /// 第三方站表单
+    Authlib,
+    /// 本地档案表单
+    Offline,
+}
+
+/// 表单的**纯 UI 状态**（app 层持有，随消息改动）。
+///
+/// 密码只存在这里和「一次 `AppCommand::AddAuthlibAccount` 的载荷」里：不进日志、不进快照、
+/// 不进任何回程 DTO（M114 凭据红线）。
+#[derive(Debug, Clone, Default, PartialEq, Eq)]
+pub struct Form {
+    /// 当前面板
+    pub panel: Panel,
+    /// 第三方站地址
+    pub server: String,
+    /// 登录名
+    pub login: String,
+    /// 密码（一次性的请求值）
+    pub password: String,
+    /// 本地档案名
+    pub offline_name: String,
+}
+
+impl Form {
+    /// 空表单（只画三条轨道）。
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    /// 打开某条轨道的面板（已开着同一个就用原值，避免输入被清掉）。
+    pub fn open(&mut self, track: Track) {
+        self.panel = match track {
+            Track::Microsoft => Panel::Microsoft,
+            Track::Authlib => Panel::Authlib,
+            Track::Offline => Panel::Offline,
+        };
+    }
+
+    /// 关掉面板（**密码一起清掉**：留着没有意义，只是多留一份凭据在内存里）。
+    pub fn close(&mut self) {
+        self.password.clear();
+        self.panel = Panel::None;
+    }
+
+    /// 提交之后清掉一次性凭据（成功与否都清：重试用新输入）。
+    pub fn clear_secret(&mut self) {
+        self.password.clear();
+    }
+
+    /// 本地档案名是否已填（`trim` 后非空才算）。
+    #[must_use]
+    pub fn offline_ready(&self) -> bool {
+        !self.offline_name.trim().is_empty()
+    }
+
+    /// 第三方站表单是否已填（三项都非空；地址的语法问题由 host 的规范化兜）。
+    #[must_use]
+    pub fn authlib_ready(&self) -> bool {
+        !self.server.trim().is_empty() && !self.login.trim().is_empty() && !self.password.is_empty()
+    }
+}
+
+/// 列表行 / 当前账户卡片用的数据。
+#[derive(Debug, Clone, PartialEq)]
+pub struct Row {
+    /// 稳定 id（切/删/重登都按它派命令）
+    pub id: String,
+    /// 展示名
+    pub name: String,
+    /// 首字母块的字
+    pub monogram: String,
+    /// 首字母块色号（0..6，`profile_id` 稳定推导）
+    pub tone: u8,
+    /// 轨道
+    pub kind: AccountKind,
+    /// 轨道文案（i18n）
+    pub kind_label: String,
+    /// 「添加于 {date}」
+    pub added: String,
+    /// 副行：服务器 / 登录名（没有就空）
+    pub detail: String,
+    /// 是否是当前启动账户
+    pub active: bool,
+    /// 裁好的头像（`None` = 画首字母块）
+    pub head: Option<image::Handle>,
+    /// 皮肤原图（皮肤预览区）
+    pub skin: Option<image::Handle>,
+}
+
+/// 整页视图模型。
+#[derive(Debug, Clone, PartialEq)]
+pub struct Page {
+    /// 账户行
+    pub rows: Vec<Row>,
+    /// 当前启动账户在 `rows` 里的下标
+    pub active: Option<usize>,
+    /// 打开的面板
+    pub panel: Panel,
+    /// 表单值（渲染要读）
+    pub form: Form,
+    /// 微软登录面板
+    pub device: DevicePanel,
+    /// 第三方轨面板
+    pub authlib: AuthlibPanel,
+    /// 校验通过的服务器名（表单上显示）
+    pub checked_server: String,
+    /// 版面宽度（**中栏可用宽**，M104 的 `AgentUi::content_width`；账户页自己的
+    /// `layout::frame_metrics` 拿它算列宽，与其它页同源）
+    pub width: f32,
+}
+
+impl Page {
+    /// 从状态与表单构造（`avatars` 是解码缓存，见 [`Cache]`；`width` 是中栏可用宽）。
+    pub fn build(
+        state: &AppState,
+        form: &Form,
+        avatars: &mut Cache,
+        lang: Lang,
+        width: f32,
+    ) -> Self {
+        let rows: Vec<Row> = state
+            .accounts
+            .iter()
+            .map(|account| row_of(account, avatars, lang))
+            .collect();
+        let active = rows.iter().position(|row| row.active);
+        let device = device_panel(&state.device_login, state.device_code_remaining());
+        // 登录在进行（或刚失败/刚成功）时，面板**必须**是微软那条轨：否则用户点了登录、
+        // 后台已经在等设备码，页面上却只剩三张入口卡——那正是「只转圈」的另一种坏法。
+        let panel = if matches!(device, DevicePanel::Hidden) {
+            form.panel
+        } else {
+            Panel::Microsoft
+        };
+        let (authlib, checked_server) = authlib_panel(&state.authlib_login);
+        // 「校验通过」的服务器名只在该面板打开且地址一致时显示（换了地址就不再是它）
+        let checked_server = if form.server.trim().is_empty()
+            || state.authlib_login.server.trim().is_empty()
+            || form.server.trim() != state.authlib_login.server.trim()
+        {
+            String::new()
+        } else {
+            checked_server
+        };
+        Page {
+            rows,
+            active,
+            panel,
+            form: form.clone(),
+            device,
+            authlib,
+            checked_server,
+            width,
+        }
+    }
+
+    /// 当前账户行。
+    #[must_use]
+    pub fn active_row(&self) -> Option<&Row> {
+        self.active.and_then(|index| self.rows.get(index))
+    }
+
+    /// 有没有账户（空态判据）。
+    #[must_use]
+    pub fn is_empty(&self) -> bool {
+        self.rows.is_empty()
+    }
+
+    /// 皮肤预览区要画的那张图（当前账户有皮肤才画）。
+    #[must_use]
+    pub fn active_skin(&self) -> Option<&image::Handle> {
+        self.active_row().and_then(|row| row.skin.as_ref())
+    }
+}
+
+/// 单行。
+fn row_of(account: &AccountView, avatars: &mut Cache, lang: Lang) -> Row {
+    let text = lang.catalog();
+    let avatar: Avatar = avatars.resolve(&account.id, account.skin.as_ref());
+    let kind_label = match account.kind {
+        AccountKind::Microsoft => text.text(Key::AccountKindMicrosoft),
+        AccountKind::Authlib => text.text(Key::AccountKindAuthlib),
+        AccountKind::Offline => text.text(Key::AccountKindOffline),
+    };
+    let detail = if !account.server_url.is_empty() {
+        text.render(
+            Key::AccountServer,
+            &[("server", account.server_url.as_str())],
+        )
+    } else {
+        account.login_name.clone()
+    };
+    Row {
+        id: account.id.clone(),
+        name: account.name.clone(),
+        monogram: account.monogram(),
+        tone: account.monogram_tone(),
+        kind: account.kind,
+        kind_label: kind_label.to_string(),
+        added: text.render(Key::AccountAddedOn, &[("date", account.created.as_str())]),
+        detail,
+        active: account.active,
+        head: avatar.head,
+        skin: avatar.skin,
+    }
+}
diff --git a/crates/app-iced/src/pages/account/panels.rs b/crates/app-iced/src/pages/account/panels.rs
new file mode 100644
index 0000000..cd6a9e8
--- /dev/null
+++ b/crates/app-iced/src/pages/account/panels.rs
@@ -0,0 +1,158 @@
+//! 两条登录流的面板态（微软设备码/授权码 + 第三方站校验/登录）。
+//!
+//! 从 `model.rs` 拆出来守 400 行硬线：这些类型是「UI 要画什么」的枚举，
+//! 判定逻辑（倒计时 → 已过期、服务发现 → 可用）也在这里，页面与表单只消费结果。
+
+use unlucky_presenter::dto::{DeviceLoginPhase, DeviceLoginView};
+
+/// 微软登录面板要画什么（每态都不同，**不允许只有一个转圈**）。
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum DevicePanel {
+    /// 没有登录在跑
+    Hidden,
+    /// 正在申请设备码
+    Requesting {
+        /// 状态文案（presenter 给的，已脱敏）
+        message: String,
+    },
+    /// 设备码等待用户操作
+    Code {
+        /// 用户码
+        code: String,
+        /// 验证链接
+        link: String,
+        /// 剩余秒数
+        remaining: Option<u64>,
+        /// 是否已过期
+        expired: bool,
+        /// 状态文案
+        message: String,
+    },
+    /// 授权码流：等浏览器回调
+    Browser {
+        /// 授权链接（可复制）
+        link: String,
+        /// 剩余秒数
+        remaining: Option<u64>,
+        /// 是否已过期
+        expired: bool,
+        /// 状态文案
+        message: String,
+    },
+    /// 失败（原文已脱敏）
+    Failed {
+        /// 失败原因
+        message: String,
+    },
+    /// 成功
+    Succeeded {
+        /// 账户名
+        name: String,
+    },
+}
+
+/// 第三方轨面板的可见状态。
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum AuthlibPanel {
+    /// 没在跑
+    Idle,
+    /// 正在校验/登录
+    Running {
+        /// 状态文案
+        message: String,
+    },
+    /// 地址校验通过（服务发现拿到服务器名）
+    Ready {
+        /// 服务器名
+        server_name: String,
+        /// 状态文案
+        message: String,
+    },
+    /// 失败（原文已脱敏）
+    Failed {
+        /// 失败原因
+        message: String,
+    },
+    /// 成功
+    Succeeded {
+        /// 账户名
+        name: String,
+    },
+}
+
+/// 微软登录状态 → 面板态（倒计时与「已过期」都在这里定性，UI 只画）。
+pub(super) fn device_panel(view: &DeviceLoginView, remaining: Option<u64>) -> DevicePanel {
+    let expired = remaining == Some(0);
+    match view.phase {
+        DeviceLoginPhase::Idle => DevicePanel::Hidden,
+        DeviceLoginPhase::Requesting => DevicePanel::Requesting {
+            message: view.message.clone(),
+        },
+        DeviceLoginPhase::Waiting => {
+            if view.user_code.trim().is_empty() {
+                DevicePanel::Browser {
+                    link: view.verification_uri.clone(),
+                    remaining,
+                    expired,
+                    message: view.message.clone(),
+                }
+            } else {
+                DevicePanel::Code {
+                    code: view.user_code.clone(),
+                    link: view.qr_link.clone(),
+                    remaining,
+                    expired,
+                    message: view.message.clone(),
+                }
+            }
+        }
+        DeviceLoginPhase::Failed => DevicePanel::Failed {
+            message: view.message.clone(),
+        },
+        DeviceLoginPhase::Succeeded => DevicePanel::Succeeded {
+            name: view.account_name.clone(),
+        },
+    }
+}
+
+/// 第三方轨状态 → 面板态（顺带取出「校验通过的服务器名」）。
+pub(super) fn authlib_panel(
+    view: &unlucky_presenter::dto::AuthlibLoginView,
+) -> (AuthlibPanel, String) {
+    match view.phase {
+        DeviceLoginPhase::Idle => (AuthlibPanel::Idle, String::new()),
+        DeviceLoginPhase::Requesting => (
+            AuthlibPanel::Running {
+                message: view.message.clone(),
+            },
+            String::new(),
+        ),
+        DeviceLoginPhase::Waiting => (
+            AuthlibPanel::Ready {
+                server_name: view.server_name.clone(),
+                message: view.message.clone(),
+            },
+            view.server_name.clone(),
+        ),
+        DeviceLoginPhase::Succeeded => (
+            AuthlibPanel::Succeeded {
+                name: view.account_name.clone(),
+            },
+            view.server_name.clone(),
+        ),
+        DeviceLoginPhase::Failed => (
+            AuthlibPanel::Failed {
+                message: view.message.clone(),
+            },
+            String::new(),
+        ),
+    }
+}
+
+impl AuthlibPanel {
+    /// 是否正在跑（此时表单字段禁用，避免改了一半的地址被提交）。
+    #[must_use]
+    pub fn busy(&self) -> bool {
+        matches!(self, Self::Running { .. })
+    }
+}
diff --git a/crates/app-iced/src/pages/account/rows.rs b/crates/app-iced/src/pages/account/rows.rs
new file mode 100644
index 0000000..6c4f2f5
--- /dev/null
+++ b/crates/app-iced/src/pages/account/rows.rs
@@ -0,0 +1,233 @@
+//! 账户列表：当前账户卡片 + 全部账户行 + 皮肤预览区。
+
+use iced::widget::{column, container, image, row, space};
+use iced::{Alignment, ContentFit, Element, Length};
+
+use unlucky_design::color::Role;
+use unlucky_design::spacing::Space;
+use unlucky_design::typography::TypeRole;
+use unlucky_i18n::{Catalog, Key, Lang};
+
+use crate::app::components::buttons::{self, Button};
+use crate::pages::frame;
+use crate::theme::Ui;
+
+use crate::pages::account::{model::Page as Model, widgets};
+use crate::pages::Message as PageMessage;
+
+use super::Message as Account;
+
+/// 当前账户卡片（含皮肤预览区）。
+pub fn active_card<'a>(
+    ui: &'a Ui,
+    page: &'a Model,
+    catalog: Catalog,
+    lang: Lang,
+) -> Element<'a, PageMessage> {
+    let Some(current) = page.active_row() else {
+        return container(space::vertical()).into();
+    };
+    let _ = lang;
+
+    let mut actions = row![]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center);
+    actions = actions.push(buttons::text(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountRelogin),
+            Account::Relogin.into_page(),
+        ),
+    ));
+    actions = actions.push(buttons::text(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountRemove),
+            Account::Remove(current.id.clone()).into_page(),
+        ),
+    ));
+
+    let mut name_line = row![
+        frame::text_role(
+            ui,
+            TypeRole::TitleMedium,
+            true,
+            &current.name,
+            ui.color(Role::OnSurface),
+        ),
+        widgets::badge(ui, &current.kind_label, false),
+    ]
+    .spacing(ui.space(Space::X2))
+    .align_y(Alignment::Center);
+    if current.active {
+        name_line = name_line.push(widgets::badge(
+            ui,
+            catalog.text(Key::AccountActiveChip),
+            true,
+        ));
+    }
+
+    let identity = column![
+        name_line,
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            &current.added,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+    ]
+    .spacing(ui.space(Space::X1));
+
+    let left = row![
+        widgets::avatar(ui, current, widgets::AVATAR_ACTIVE),
+        container(identity).width(Length::Fill),
+        actions,
+    ]
+    .spacing(ui.space(Space::X4))
+    .align_y(Alignment::Center);
+
+    let mut body = column![
+        widgets::section(ui, catalog.text(Key::AccountCurrentTitle), None),
+        left,
+    ]
+    .spacing(ui.space(Space::X4));
+
+    if let Some(skin) = page.active_skin() {
+        body = body.push(skin_preview(ui, skin.clone(), catalog));
+    }
+
+    frame::card(ui, body)
+}
+
+/// 皮肤预览区：**原图直出**（64×64），旁边一句话说清「皮肤从哪来」。
+fn skin_preview<'a>(
+    ui: &'a Ui,
+    skin: iced::widget::image::Handle,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    let size = ui.space(Space::X8) * 2.0;
+    row![
+        container(
+            image(skin)
+                .width(Length::Fixed(size))
+                .height(Length::Fixed(size))
+                .content_fit(ContentFit::Contain),
+        )
+        .width(Length::Fixed(size))
+        .height(Length::Fixed(size)),
+        column![
+            frame::text_role(
+                ui,
+                TypeRole::LabelMedium,
+                true,
+                catalog.text(Key::AccountSkinTitle),
+                ui.color(Role::OnSurface),
+            ),
+            frame::text_role(
+                ui,
+                TypeRole::BodySmall,
+                false,
+                catalog.text(Key::AccountSkinHint),
+                ui.color(Role::OnSurfaceVariant),
+            ),
+        ]
+        .spacing(ui.space(Space::X1)),
+    ]
+    .spacing(ui.space(Space::X4))
+    .align_y(Alignment::Center)
+    .into()
+}
+
+/// 「全部账户」列表。
+pub fn list<'a>(
+    ui: &'a Ui,
+    page: &'a Model,
+    catalog: Catalog,
+    lang: Lang,
+) -> Element<'a, PageMessage> {
+    let _ = lang;
+    let mut items = column![widgets::section(
+        ui,
+        catalog.text(Key::AccountListTitle),
+        None
+    )]
+    .spacing(ui.space(Space::X3));
+
+    for row in &page.rows {
+        items = items.push(item(ui, row, catalog));
+    }
+    frame::card(ui, items)
+}
+
+/// 一行账户。
+fn item<'a>(
+    ui: &'a Ui,
+    row: &'a crate::pages::account::model::Row,
+    catalog: Catalog,
+) -> Element<'a, PageMessage> {
+    let mut detail = column![
+        frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            false,
+            &row.name,
+            ui.color(Role::OnSurface),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            &row.added,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+    ]
+    .spacing(ui.space(Space::X1));
+
+    if !row.detail.is_empty() {
+        detail = detail.push(frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            &row.detail,
+            ui.color(Role::OnSurfaceVariant),
+        ));
+    }
+
+    let mut trailing = row![widgets::badge(ui, &row.kind_label, false),]
+        .spacing(ui.space(Space::X2))
+        .align_y(Alignment::Center);
+
+    if row.active {
+        trailing = trailing.push(widgets::badge(
+            ui,
+            catalog.text(Key::AccountActiveChip),
+            true,
+        ));
+    } else {
+        trailing = trailing.push(buttons::text(
+            ui,
+            Button::new(
+                catalog.text(Key::AccountSwitch),
+                Account::Switch(row.id.clone()).into_page(),
+            ),
+        ));
+    }
+    trailing = trailing.push(buttons::text(
+        ui,
+        Button::new(
+            catalog.text(Key::AccountRemove),
+            Account::Remove(row.id.clone()).into_page(),
+        ),
+    ));
+
+    row![
+        widgets::avatar(ui, row, widgets::AVATAR_LIST),
+        container(detail).width(Length::Fill),
+        trailing,
+    ]
+    .spacing(ui.space(Space::X3))
+    .align_y(Alignment::Center)
+    .padding(iced::Padding::from([0.0, ui.space(Space::X2)]))
+    .into()
+}
diff --git a/crates/app-iced/src/pages/account/tests.rs b/crates/app-iced/src/pages/account/tests.rs
new file mode 100644
index 0000000..20a595e
--- /dev/null
+++ b/crates/app-iced/src/pages/account/tests.rs
@@ -0,0 +1,322 @@
+//! 账户页视图模型的判据（M114 的核心断言都在这里）。
+//!
+//! | 用例 | 抓得住什么 |
+//! |---|---|
+//! | `a_jwt_injected_into_events_never_reaches_the_page` | **凭据红线**：DTO → 状态 → 视图模型这一路漏了脱敏 |
+//! | `an_empty_account_list_offers_all_three_tracks` | 空态变成白页（没有入口） |
+//! | `the_device_code_panel_shows_a_countdown_and_expires` | 设备码「只转圈」（倒计时/过期不可见） |
+//! | `a_third_party_account_falls_back_to_the_monogram` | 没有皮肤却画白块 / 拿假皮肤充数 |
+//! | `the_offline_track_keeps_the_agreed_wording` | 离线档案的说明被改写成「兼容旧启动器」那套 |
+
+use unlucky_i18n::{Key, Lang};
+use unlucky_presenter::dto::{
+    AccountKind, AccountView, AppEvent, AuthlibLoginView, CoreEvent, DeviceLoginPhase,
+    DeviceLoginView, SkinImage,
+};
+use unlucky_presenter::state::AppState;
+
+use super::avatar::Cache;
+use super::model::{AuthlibPanel, DevicePanel, Form, Page, Panel, Track};
+
+fn account(name: &str, kind: AccountKind, active: bool) -> AccountView {
+    AccountView {
+        id: format!("account:{name}"),
+        name: name.to_string(),
+        kind,
+        profile_id: "0f8f1d3c4b5a69788796a5b4c3d2e1f0".to_string(),
+        login_name: String::new(),
+        created: "2026-10-31 20:12".to_string(),
+        active,
+        server_url: String::new(),
+        skin: None,
+    }
+}
+
+fn build(state: &AppState, form: &Form) -> Page {
+    Page::build(state, form, &mut Cache::default(), Lang::ZhCn, 1180.0)
+}
+
+/// 把视图模型里**所有会上屏的文本**拼起来（凭据红线就是在这坨里查）。
+fn visible_text(page: &Page) -> String {
+    let mut out = String::new();
+    for row in &page.rows {
+        out.push_str(&row.name);
+        out.push_str(&row.monogram);
+        out.push_str(&row.kind_label);
+        out.push_str(&row.added);
+        out.push_str(&row.detail);
+    }
+    out.push_str(&page.form.server);
+    out.push_str(&page.form.login);
+    out.push_str(&page.form.offline_name);
+    out.push_str(&page.checked_server);
+    match &page.device {
+        DevicePanel::Hidden => {}
+        DevicePanel::Requesting { message } => out.push_str(message),
+        DevicePanel::Code {
+            code,
+            link,
+            message,
+            ..
+        } => {
+            out.push_str(code);
+            out.push_str(link);
+            out.push_str(message);
+        }
+        DevicePanel::Browser { link, message, .. } => {
+            out.push_str(link);
+            out.push_str(message);
+        }
+        DevicePanel::Failed { message } => out.push_str(message),
+        DevicePanel::Succeeded { name } => out.push_str(name),
+    }
+    match &page.authlib {
+        AuthlibPanel::Idle => {}
+        AuthlibPanel::Running { message } => out.push_str(message),
+        AuthlibPanel::Ready {
+            server_name,
+            message,
+        } => {
+            out.push_str(server_name);
+            out.push_str(message);
+        }
+        AuthlibPanel::Failed { message } => out.push_str(message),
+        AuthlibPanel::Succeeded { name } => out.push_str(name),
+    }
+    out
+}
+
+const JWT: &str =
+    "eyJhbGciOiJSUzI1NiIsIng1dCI6IkFCQyJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.c2lnbmF0dXJlLXZhbHVl";
+
+/// **凭据红线（审核项）**：把 JWT 形状串注入事件 → 视图模型里不许出现。
+///
+/// 抓得住：presenter 状态层的脱敏被删（`AppState::apply_device_login` / `apply_authlib_login`），
+/// 或页面把 DTO 的错误原文直接搬上屏。
+/// 抓不住：某个将来新增的**独立**字段绕过 `message` 通道（那需要另加断言）。
+#[test]
+fn a_jwt_injected_into_events_never_reaches_the_page() {
+    let mut state = AppState::new();
+    state.accounts = vec![account("Steve", AccountKind::Microsoft, true)];
+    // **绕过构造器**直接摆一个带 JWT 的 DTO：模拟「将来某个新构造器忘了脱敏」/「后端把原文塞进来」。
+    // 用 `DeviceLoginView::failed(..)` 构造是测不到状态层脱敏的（构造器自己就脱过了）。
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView {
+            phase: DeviceLoginPhase::Failed,
+            message: format!("微软返回错误：accessToken={JWT} refresh_token={JWT}"),
+            ..DeviceLoginView::new()
+        },
+    )));
+    state.apply(AppEvent::Core(CoreEvent::AuthlibLoginChanged(
+        AuthlibLoginView {
+            phase: DeviceLoginPhase::Failed,
+            server: "https://littleskin.cn/api/yggdrasil/".to_string(),
+            server_name: String::new(),
+            message: format!("服务器回包异常 {JWT}"),
+            account_name: String::new(),
+        },
+    )));
+
+    let page = build(&state, &Form::new());
+    let text = visible_text(&page);
+    assert!(!text.contains("eyJ"), "视图模型里出现了 JWT：{text}");
+    assert!(!text.to_lowercase().contains("refreshtoken"), "{text}");
+    assert!(
+        text.contains("⟪redacted⟫"),
+        "错误文案要被标成已脱敏：{text}"
+    );
+}
+
+/// 空态：**三条轨道都有入口**，不是一张白页。
+#[test]
+fn an_empty_account_list_offers_all_three_tracks() {
+    let state = AppState::new();
+    let page = build(&state, &Form::new());
+    assert!(page.is_empty());
+    assert_eq!(page.panel, Panel::None);
+    assert!(page.active_row().is_none());
+    assert_eq!(Track::ALL.len(), 3);
+    // 三条轨道的文案 key 各不相同（不是三张一样的卡）
+    let mut keys: Vec<&str> = Track::ALL
+        .iter()
+        .map(|track| track.title_key().name())
+        .collect();
+    keys.sort_unstable();
+    keys.dedup();
+    assert_eq!(keys.len(), 3);
+}
+
+/// 设备码：**倒计时可见**，过期后是「已过期」而不是继续转圈。
+#[test]
+fn the_device_code_panel_shows_a_countdown_and_expires() {
+    let mut state = AppState::new();
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView::waiting("ABCD-EFGH", "https://www.microsoft.com/link", 900, ""),
+    )));
+    let page = build(&state, &Form::new());
+    match &page.device {
+        DevicePanel::Code {
+            code,
+            remaining,
+            expired,
+            ..
+        } => {
+            assert_eq!(code, "ABCD-EFGH");
+            assert!(remaining.is_some_and(|secs| secs > 0));
+            assert!(!expired);
+        }
+        other => panic!("等待态应该是设备码面板，实际 {other:?}"),
+    }
+
+    // 起点往前挪 20 分钟 ⇒ 过期
+    state.device_login_started =
+        Some(std::time::Instant::now() - std::time::Duration::from_secs(1_200));
+    let page = build(&state, &Form::new());
+    match &page.device {
+        DevicePanel::Code {
+            remaining, expired, ..
+        } => {
+            assert_eq!(*remaining, Some(0));
+            assert!(*expired, "过期必须被标出来（面板要画「已过期，重试」）");
+        }
+        other => panic!("过期态仍是设备码面板，实际 {other:?}"),
+    }
+
+    // 授权码流也走同一条倒计时（没有用户码时是 Browser 面板）
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView::browser_waiting("https://login.microsoftonline.com/x", 300, None),
+    )));
+    let page = build(&state, &Form::new());
+    assert!(matches!(page.device, DevicePanel::Browser { .. }));
+}
+
+/// 没有皮肤 = 首字母块（不是白块、不是假皮肤）；坏图也必须回落。
+#[test]
+fn a_third_party_account_falls_back_to_the_monogram() {
+    let mut state = AppState::new();
+    state.accounts = vec![
+        account("Alex", AccountKind::Authlib, true),
+        account("Steve", AccountKind::Microsoft, false),
+    ];
+    let page = build(&state, &Form::new());
+    assert!(
+        page.rows.iter().all(|row| row.head.is_none()),
+        "没有皮肤就不许有图"
+    );
+    assert!(page.rows.iter().all(|row| !row.monogram.is_empty()));
+    assert!(page.active_skin().is_none(), "皮肤预览区没有图就不画");
+
+    // 塞一张坏图：解码失败 → 仍然回落到首字母块（不 panic、不白块）
+    state.accounts[0].skin = Some(SkinImage {
+        png: b"not a png".to_vec(),
+        source: "test".to_string(),
+    });
+    let page = build(&state, &Form::new());
+    assert!(page.rows[0].head.is_none());
+
+    // 离线档案永远没有皮肤：即使被塞了假数据，UI 侧也只认 DTO 的 `kind`
+    state.accounts[1].skin = None;
+    state.accounts[1].kind = AccountKind::Offline;
+    let page = build(&state, &Form::new());
+    assert!(page.rows[1].head.is_none());
+}
+
+/// 离线档案的说明**必须**带「无法连接启用正版验证的服务器」这条限定（中英都要）。
+#[test]
+fn the_offline_track_keeps_the_agreed_wording() {
+    for lang in Lang::ALL {
+        let catalog = lang.catalog();
+        for key in [Key::AccountTrackOfflineBody, Key::AccountOfflineWarning] {
+            let text = catalog.text(key);
+            assert!(
+                text.contains("cannot join servers that require a genuine Minecraft account")
+                    || text.contains("无法连接启用正版验证的服务器"),
+                "{} 的 {key:?} 丢了「仅本地/隔离网络测试用」口径：{text}",
+                lang.tag()
+            );
+            assert!(
+                !text.contains("migration") && !text.contains("迁移"),
+                "不许改写成「兼容旧启动器迁移」：{text}"
+            );
+        }
+    }
+}
+
+/// 三条轨道在列表里**文案互不相同**（每一行都贴自己的轨道徽标）。
+#[test]
+fn every_track_has_its_own_badge() {
+    let mut state = AppState::new();
+    state.accounts = vec![
+        account("a", AccountKind::Microsoft, true),
+        account("b", AccountKind::Authlib, false),
+        account("c", AccountKind::Offline, false),
+    ];
+    let page = build(&state, &Form::new());
+    let labels: Vec<&str> = page
+        .rows
+        .iter()
+        .map(|row| row.kind_label.as_str())
+        .collect();
+    assert_eq!(labels.len(), 3);
+    assert_ne!(labels[0], labels[1]);
+    assert_ne!(labels[1], labels[2]);
+    assert!(
+        labels.iter().all(|label| !label.is_empty()),
+        "轨道徽标不能空"
+    );
+}
+
+/// 表单状态：三条轨道各开各的，密码关面板即清。
+#[test]
+fn the_form_tracks_are_independent() {
+    let mut form = Form::new();
+    form.open(Track::Offline);
+    assert_eq!(form.panel, Panel::Offline);
+    assert!(!form.offline_ready(), "空名字不能提交");
+    form.offline_name = "Alex".to_string();
+    assert!(form.offline_ready());
+
+    form.open(Track::Authlib);
+    assert_eq!(form.panel, Panel::Authlib);
+    assert!(!form.authlib_ready(), "地址/登录名/密码缺一不可");
+    form.server = "https://littleskin.cn/api/yggdrasil/".to_string();
+    form.login = "alex".to_string();
+    form.password = "hunter2".to_string();
+    assert!(form.authlib_ready());
+    form.clear_secret();
+    assert!(form.password.is_empty());
+    assert!(!form.authlib_ready());
+}
+
+/// 登录阶段的可判据性：Requesting / Waiting / Failed 各自映射到不同面板。
+#[test]
+fn login_phases_map_to_distinct_panels() {
+    let mut state = AppState::new();
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView {
+            phase: DeviceLoginPhase::Requesting,
+            message: "正在向微软申请设备码…".to_string(),
+            ..DeviceLoginView::new()
+        },
+    )));
+    assert!(matches!(
+        build(&state, &Form::new()).device,
+        DevicePanel::Requesting { .. }
+    ));
+
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView::failed("HTTP 403"),
+    )));
+    assert!(matches!(
+        build(&state, &Form::new()).device,
+        DevicePanel::Failed { .. }
+    ));
+
+    state.apply(AppEvent::Core(CoreEvent::DeviceLoginChanged(
+        DeviceLoginView::new(),
+    )));
+    assert!(matches!(
+        build(&state, &Form::new()).device,
+        DevicePanel::Hidden
+    ));
+}
diff --git a/crates/app-iced/src/pages/account/widgets.rs b/crates/app-iced/src/pages/account/widgets.rs
new file mode 100644
index 0000000..1969319
--- /dev/null
+++ b/crates/app-iced/src/pages/account/widgets.rs
@@ -0,0 +1,189 @@
+//! 本页小件：头像块（首字母块 / 真图）、章节标题、轨道徽标。
+//!
+//! ## 令牌纪律
+//!
+//! 本文件**零**色值 / 字号 / 半径字面量：颜色一律 [`Ui::color`]，尺寸走 `Space` /
+//! `LayoutMetrics` / `ui.style(..)`。首字母块的「色号」也只是**挑哪一个角色**，
+//! 不是一个具体颜色——深浅两套主题各自成立。
+
+use iced::widget::text::LineHeight;
+use iced::widget::{container, image, row, text};
+use iced::{Alignment, Background, Border, ContentFit, Element, Length, Pixels};
+
+use unlucky_design::color::Role;
+use unlucky_design::shape::ShapeScale;
+use unlucky_design::spacing::Space;
+use unlucky_design::typography::TypeRole;
+
+use crate::pages::frame;
+use crate::theme::Ui;
+
+use super::super::Message;
+use super::model::Row;
+
+/// 头像块的可选尺寸（列表 40 / 当前账户 56）。
+pub const AVATAR_LIST: f32 = 40.0;
+/// 当前账户卡片上的头像边长。
+pub const AVATAR_ACTIVE: f32 = 56.0;
+
+/// 色号 → (底色, 字色) 角色对。
+///
+/// 只有「挑角色」这一步是硬的：六个色号对应六个容器角色，深浅主题各有一套值，
+/// 所以同一个账户在两种主题下都成立，也不会撞出低对比。
+fn tone(ui: &Ui, tone: u8) -> (iced::Color, iced::Color) {
+    match tone % 6 {
+        0 => (
+            ui.color(Role::PrimaryContainer),
+            ui.color(Role::OnPrimaryContainer),
+        ),
+        1 => (
+            ui.color(Role::SecondaryContainer),
+            ui.color(Role::OnSecondaryContainer),
+        ),
+        2 => (
+            ui.color(Role::TertiaryContainer),
+            ui.color(Role::OnTertiaryContainer),
+        ),
+        3 => (
+            ui.color(Role::SurfaceContainerHighest),
+            ui.color(Role::OnSurface),
+        ),
+        4 => (ui.color(Role::PrimaryFixed), ui.color(Role::OnPrimaryFixed)),
+        _ => (
+            ui.color(Role::SurfaceVariant),
+            ui.color(Role::OnSurfaceVariant),
+        ),
+    }
+}
+
+/// 头像块：有真图就画图（圆角裁切），没有就画**首字母块**。
+///
+/// 三条铁律：① 图解码失败一定回到首字母块（不白块）；② 首字母块的字来自 `AccountView::monogram`，
+/// 永不空串；③ 两者尺寸完全一致，切换时不跳版。
+pub fn avatar<'a>(ui: &'a Ui, row: &Row, size: f32) -> Element<'a, Message> {
+    if let Some(handle) = &row.head {
+        return container(
+            image(handle.clone())
+                .width(Length::Fixed(size))
+                .height(Length::Fixed(size))
+                .content_fit(ContentFit::Cover),
+        )
+        .width(Length::Fixed(size))
+        .height(Length::Fixed(size))
+        .style(move |_theme| container::Style {
+            border: Border {
+                radius: ui.radius(ShapeScale::Full, size),
+                ..Border::default()
+            },
+            ..container::Style::default()
+        })
+        .into();
+    }
+    monogram(ui, &row.monogram, row.tone, size)
+}
+
+/// 首字母块（没有皮肤时的头像位）。
+pub fn monogram<'a>(ui: &'a Ui, letter: &str, tone_index: u8, size: f32) -> Element<'a, Message> {
+    let (background, foreground) = tone(ui, tone_index);
+    let style = ui.emphasized(TypeRole::TitleMedium);
+    container(
+        text(letter.to_string())
+            .size(style.size_px)
+            .line_height(LineHeight::Absolute(Pixels(style.line_height_px)))
+            .font(ui.font_of(style))
+            .color(foreground),
+    )
+    .width(Length::Fixed(size))
+    .height(Length::Fixed(size))
+    .align_x(Alignment::Center)
+    .align_y(Alignment::Center)
+    .style(move |_theme| container::Style {
+        background: Some(Background::Color(background)),
+        border: Border {
+            radius: ui.radius(ShapeScale::Full, size),
+            ..Border::default()
+        },
+        ..container::Style::default()
+    })
+    .into()
+}
+
+/// 章节标题（`TitleMedium` + 可选副文案）。
+pub fn section<'a>(ui: &'a Ui, title: &'a str, support: Option<&'a str>) -> Element<'a, Message> {
+    let mut column = iced::widget::column![frame::text_role(
+        ui,
+        TypeRole::TitleMedium,
+        true,
+        title,
+        ui.color(Role::OnSurface),
+    )]
+    .spacing(ui.space(Space::X1));
+    if let Some(support) = support {
+        column = column.push(frame::text_role(
+            ui,
+            TypeRole::BodySmall,
+            false,
+            support,
+            ui.color(Role::OnSurfaceVariant),
+        ));
+    }
+    column.into()
+}
+
+/// 轨道徽标（小药丸：`LabelMedium` + `SecondaryContainer`）。
+pub fn badge<'a>(ui: &'a Ui, label: &'a str, active: bool) -> Element<'a, Message> {
+    let (background, foreground) = if active {
+        (
+            ui.color(Role::SecondaryContainer),
+            ui.color(Role::OnSecondaryContainer),
+        )
+    } else {
+        (
+            ui.color(Role::SurfaceContainerHighest),
+            ui.color(Role::OnSurfaceVariant),
+        )
+    };
+    let style = ui.style(TypeRole::LabelMedium);
+    container(
+        text(label.to_string())
+            .size(style.size_px)
+            .line_height(LineHeight::Absolute(Pixels(style.line_height_px)))
+            .font(ui.font_of(style))
+            .color(foreground),
+    )
+    .padding(iced::Padding::from([0.0, ui.space(Space::X2)]))
+    .height(ui.metrics().control_height - ui.space(Space::X2) * 2.0)
+    .align_y(Alignment::Center)
+    .style(move |_theme| container::Style {
+        background: Some(Background::Color(background)),
+        border: Border {
+            radius: ui.radius(ShapeScale::Full, ui.metrics().control_height),
+            ..Border::default()
+        },
+        ..container::Style::default()
+    })
+    .into()
+}
+
+/// 一条「标签 + 值」的元信息行（列表行副文案之外的结构化信息）。
+pub fn meta_line<'a>(ui: &'a Ui, label: &'a str, value: &'a str) -> Element<'a, Message> {
+    row![
+        frame::text_role(
+            ui,
+            TypeRole::LabelSmall,
+            false,
+            label,
+            ui.color(Role::OnSurfaceVariant),
+        ),
+        frame::text_role(
+            ui,
+            TypeRole::LabelMedium,
+            false,
+            value,
+            ui.color(Role::OnSurface)
+        ),
+    ]
+    .spacing(ui.space(Space::X2))
+    .align_y(Alignment::Center)
+    .into()
+}
diff --git a/crates/app-iced/src/pages/message.rs b/crates/app-iced/src/pages/message.rs
index f33f5a7..baa530d 100644
--- a/crates/app-iced/src/pages/message.rs
+++ b/crates/app-iced/src/pages/message.rs
@@ -91,6 +91,10 @@ pub enum Message {
     /// 加一条内容库消息只动 `pages/content/message.rs`，不动本枚举的正文，也不动
     /// `app/update/page_messages.rs` 那条不许 `_ =>` 的 match。
     Content(content::Message),
+    /// 账户页消息（**M114**：三轨登录 / 列表动作 / 表单输入；app 层翻成 `AppCommand`）。
+    ///
+    /// 与 `Settings` 同一种做法：账户页自己的消息枚举在 `pages/account.rs`，这里只加一支入口。
+    Account(crate::pages::account::Message),
 }
 
 /// 页面动作清单（骨架期够用就行；接线时按业务语义重命名/扩充）。
diff --git a/crates/app-iced/src/pages/mod.rs b/crates/app-iced/src/pages/mod.rs
index 5fc809d..18fb0f8 100644
--- a/crates/app-iced/src/pages/mod.rs
+++ b/crates/app-iced/src/pages/mod.rs
@@ -109,6 +109,7 @@ pub mod harness;
 pub mod layout;
 pub mod model;
 
+pub mod account;
 pub mod content;
 mod download;
 mod instances;
diff --git a/crates/app-iced/src/pages/screen.rs b/crates/app-iced/src/pages/screen.rs
index aa3d440..02a724a 100644
--- a/crates/app-iced/src/pages/screen.rs
+++ b/crates/app-iced/src/pages/screen.rs
@@ -69,6 +69,9 @@ impl Screen {
             Route::Content => Screen::Content,
             Route::Logs => Screen::Logs,
             Route::Settings => Screen::Settings,
+            // 账户页（M114）不是本枚举四页之一：它由 `pages::account` 自己的树画
+            // （路由在 `app/view.rs` 里先被拦下），harness 的单页矩阵也不含它。
+            Route::Accounts => return None,
             Route::Agent => return None,
         })
     }
diff --git a/crates/app-iced/src/shell/mod.rs b/crates/app-iced/src/shell/mod.rs
index f769d64..141c976 100644
--- a/crates/app-iced/src/shell/mod.rs
+++ b/crates/app-iced/src/shell/mod.rs
@@ -21,13 +21,14 @@ mod nav;
 /// 用 `#[path]` 挂到外壳的命名空间。
 ///
 /// 为什么是 `#[path]` 而不是在 `pages/mod.rs` 加一行 `mod agent;`：`pages/mod.rs` 是四条页面线
-/// 共用的声明文件（本 mission 的 scope 没给它），而右栗是**外壳的一部分**（它挂在任何页面右边）。
+/// 共用的声明文件（M104 的 scope 没给它），而右栏是**外壳的一部分**（它挂在任何页面右边）。
 /// 先例是 `app/mod.rs` 挂 `../components/mod.rs`。物理路径只有一份，逻辑名字有两个用途：
-/// 宿主（右栗）归外壳，视图（会话组件）归页面目录。
+/// 宿主（右栏）归外壳，视图（会话组件）归页面目录。
 #[path = "../pages/agent/mod.rs"]
 pub(crate) mod agent;
 
-pub use nav::NavItem;
+// M114：轨底账户头像位的状态也归外壳（`NavItem` + `RailAccount` 一起导出）。
+pub use nav::{NavItem, RailAccount};
 
 use iced::widget::text::LineHeight;
 use iced::widget::{button, column, container, mouse_area, row, space, stack, text};
@@ -47,17 +48,34 @@ use crate::cli::ForcedState;
 use crate::icons;
 use crate::theme::Ui;
 
-/// 整棵树（**内容槽位版**）：外壳画标题栏 / 缩放热区 / 导航轨 / 右栗，中间那块交给调用方。
+/// 整棵树（**内容槽位版**）：外壳画标题栏 / 缩放热区 / 导航轨 / 右栏，中间那块交给调用方。
+///
+/// 产品页的唯一入口（M90 r2 / P1-1；M104 起多两样东西：右侧助手栏与拖拽取指针层；
+/// M114 起导航轨还会画轨底的账户头像位）。
+///
+/// 分工写死：
+///
+/// - 本模块负责：标题栏（拖动面 = **整条 48px 栏里从窗口左缘到第一个 caption** 的 `mouse_area`，
+///   没有单独的 8px 热区；三个 caption 键各 46×48）、东/南两条缩放热区（各 `Space::X1` = 4px）、
+///   导航轨、右栏、根容器底色；
+/// - 调用方负责：`content`（页面内容区）。它拿到的可用宽度是 `窗口宽 − rail 88 − 右栏`，
+///   而页面自己的 `layout::frame_metrics` 仍以**中栏可用宽**为输入（M104 的 `content_width`）。
+///
+/// 面板 α（D36 / M93）不从这里传：它是**表面色**的属性，唯一施加点是 `Ui::layer`
+/// （`crate::theme`）。外壳的根容器 / 标题栏 / 导航轨都走 `ui.layer(..)`，因此自动同源。
+///
+/// 产品页入口：**内容槽位 + 背景层 + 右栏 + 拖拽层 + 轨底账户头像位**。
 ///
 /// `background` 由 `pages::appearance::layer` 产出（已与 `Message::Page` 映射过）；垫在 `stack!`
 /// 最底层，于是「面板 α < 1」时能真的看见它——这就是 D34 在像素上的落点。
-// 9 个形参：M104 的 `right`/`overlay` 之后 M106 又加了 `lang`（导航轨标签要按语言取词）。
-// 拆成结构体要动 `app/view.rs` 的两处调用点，而那正是 M104/M105 反复设锚点的地方——
-// 等 M105 那轮 rebase（`draft` 与 `lang` 两个形参都要留）时一并结构体化，先就地 `allow`。
+// 10 个形参：M104 的 `right`/`overlay`、M106 的 `lang`（导航轨标签按语言取词）、
+// M114 的 `account`（轨底账户头像位状态）。拆成结构体要动 `app/view.rs` / `account_page.rs`
+// 的调用点，而那正是 M104/M105/M109 反复设锚点的地方——先就地 `allow`，等下次合流再结构体化。
 #[allow(clippy::too_many_arguments)]
 pub fn view_with_background<'a>(
     ui: &'a Ui,
     selected: NavItem,
+    account: &nav::RailAccount,
     app_title: &'a str,
     background: Option<Element<'a, Message>>,
     content: Element<'a, Message>,
@@ -66,10 +84,11 @@ pub fn view_with_background<'a>(
     forced: Option<ForcedState>,
     lang: Lang,
 ) -> Element<'a, Message> {
-    // 右栗（M104）是 `row` 的**第三个兄弟**而不是叠层：它是布局宽度的一部分，压在上面会让
-    // 中栗以为自己还有那么宽（那就是任务里禁止的「溢出」）。它的宽度由 `agent::docked` 自己声明。
+    // 右栏（M104）是 `row` 的**第三个兄弟**而不是叠层：它是布局宽度的一部分，压在上面会让
+    // 中栏以为自己还有那么宽（那就是任务里禁止的「溢出」）。它的宽度由 `agent::docked` 自己声明。
     // M106：导航轨标签按当前界面语言取词（`lang` 一路从 `App::lang()` 递进来）。
-    let mut work = row![nav::rail(ui, selected, forced, lang), content]
+    // M114：`account` 只影响轨底那一格，`right`/`overlay` 的语义一字未动。
+    let mut work = row![nav::rail(ui, selected, account, forced, lang), content]
         .width(Length::Fill)
         .height(Length::Fill);
     if let Some(right) = right {
diff --git a/crates/app-iced/src/shell/nav.rs b/crates/app-iced/src/shell/nav.rs
index 608a540..3705950 100644
--- a/crates/app-iced/src/shell/nav.rs
+++ b/crates/app-iced/src/shell/nav.rs
@@ -23,6 +23,12 @@ use unlucky_design::spacing::{LayoutMetrics, Space};
 use unlucky_design::typography::TypeRole;
 use unlucky_i18n::{Key, Lang};
 
+mod account;
+
+pub use account::RailAccount;
+
+use account::account_item;
+
 use crate::app::Message;
 use crate::cli::ForcedState;
 use crate::icons;
@@ -42,10 +48,12 @@ pub enum NavItem {
     Settings,
     /// AI 助手。
     Ai,
+    /// 账户页（**不进主序列**：入口是轨底的头像位，见 [`RailAccount`]）。
+    Account,
 }
 
 impl NavItem {
-    /// 全部占位项（顺序 = 导航栏自上而下）。
+    /// 全部**主序列**项（顺序 = 导航栏自上而下）。账户不在其中：它固定贴在轨底。
     pub const ALL: [NavItem; 5] = [
         NavItem::Instances,
         NavItem::Download,
@@ -62,6 +70,8 @@ impl NavItem {
             NavItem::Logs => Key::NavLogs,
             NavItem::Settings => Key::NavSettings,
             NavItem::Ai => Key::NavAi,
+            // M114：轨底头像位的可访问名（不在主序列里，但 `router` 的 `nav()` 会问到它）。
+            NavItem::Account => Key::AccountTitle,
         }
     }
 
@@ -81,6 +91,7 @@ impl NavItem {
             NavItem::Logs => IconKind::Logs,
             NavItem::Settings => IconKind::Settings,
             NavItem::Ai => IconKind::Ai,
+            NavItem::Account => IconKind::User,
         }
     }
 }
@@ -89,27 +100,41 @@ impl NavItem {
 pub(super) fn rail<'a>(
     ui: &'a Ui,
     selected: NavItem,
+    account: &RailAccount,
     forced: Option<ForcedState>,
     lang: Lang,
 ) -> Element<'a, Message> {
     let metrics = ui.metrics();
     let indicator = indicator_size(metrics);
+    let compact = account.compact;
 
     let items = NavItem::ALL
         .iter()
-        .map(|item| rail_item(ui, *item, *item == selected, indicator, forced, lang))
+        // `ALL` 本来就不含 `Account`（它固定在轨底），filter 只是把这条意图写明。
+        .filter(|item| **item != NavItem::Account)
+        .map(|item| rail_item(ui, *item, *item == selected, indicator, compact, forced, lang))
         .collect::<Vec<_>>();
 
     // 轨顶留白走 container padding，而不是「先塞一个 spacer 元素」：后者会被 column 的
     // spacing（4）再加一档，实测变 28（视觉复审 P3-5）。
     //
     // 轨底色与其它面板同源（M93）：`ui.layer` 已含面板 α，导航轨是面板层的一部分。
-    container(column(items).spacing(metrics.nav_item_gap))
-        .width(nav_rail_width(metrics))
-        .height(Length::Fill)
-        .padding(Padding::from([ui.space(Space::X6), 0.0]))
-        .style(move |_theme| filled(ui.layer(MaterialLayer::Canvas)))
-        .into()
+    //
+    // 账户头像位**固定贴在轨底**（M114）：主序列四项在上，中间一段 Fill 把头像顶到底部——
+    // 于是「账户」不是第 6 个导航项，轨的长度也不会随页数增长。
+    container(
+        column![
+            column(items).spacing(metrics.nav_item_gap),
+            iced::widget::space::vertical(),
+            account_item(ui, selected, account, indicator, forced),
+        ]
+        .height(Length::Fill),
+    )
+    .width(nav_rail_width(metrics))
+    .height(Length::Fill)
+    .padding(Padding::from([ui.space(Space::X6), 0.0]))
+    .style(move |_theme| filled(ui.layer(MaterialLayer::Canvas)))
+    .into()
 }
 
 fn rail_item<'a>(
@@ -117,6 +142,7 @@ fn rail_item<'a>(
     item: NavItem,
     selected: bool,
     indicator: (f32, f32),
+    compact: bool,
     forced: Option<ForcedState>,
     lang: Lang,
 ) -> Element<'a, Message> {
@@ -152,26 +178,32 @@ fn rail_item<'a>(
         });
 
     let item_height = nav_item_height(ui, indicator_height);
+    let height = if compact {
+        indicator_height
+    } else {
+        item_height
+    };
     // 列必须显式占满轨宽，否则它会 shrink 到 56，`align_x(Center)` 就变成空操作，
     // 药丸会贴左缘（x=0..55 而不是 16..71）——r1 实测踩到的第二个坑。
-    let stack = column![
-        pill,
-        label(
+    let mut stack = column![pill]
+        .width(nav_rail_width(ui.metrics()))
+        .align_x(Alignment::Center)
+        .height(height);
+    if !compact {
+        // M114 的「窄高收成图标条」+ M106 的「按语言取词」并存。
+        stack = stack.push(label(
             ui,
             TypeRole::LabelMedium,
             false,
             item.label(lang),
-            label_color
-        ),
-    ]
-    .spacing(ui.space(Space::X1))
-    .width(nav_rail_width(ui.metrics()))
-    .align_x(Alignment::Center)
-    .height(item_height);
+            label_color,
+        ));
+    }
+    stack = stack.spacing(ui.space(Space::X1));
 
     button(stack)
         .width(nav_rail_width(ui.metrics()))
-        .height(item_height)
+        .height(height)
         .padding(0)
         .style(move |_theme: &IcedTheme, status| {
             let background = match overridden(forced, status) {
diff --git a/crates/app-iced/src/shell/nav/account.rs b/crates/app-iced/src/shell/nav/account.rs
new file mode 100644
index 0000000..f3fa2df
--- /dev/null
+++ b/crates/app-iced/src/shell/nav/account.rs
@@ -0,0 +1,220 @@
+//! 导航轨**底部账户头像位**（M114）：状态结构体 + 那个按钮。
+//!
+//! 为什么单独一个文件：`shell/nav.rs` 贴着 400 行硬线，而这块是 M114 新增的一整块
+//! （未登录/已登录两态、窄高收成图标条的判据、点击跳账户页）。
+
+use iced::widget::{button, column, container, text};
+use iced::{Alignment, Background, Border, Element, Length, Shadow, Theme as IcedTheme};
+
+use unlucky_design::color::{Role, StateLayer};
+use unlucky_design::icons::IconKind;
+use unlucky_design::shape::ShapeScale;
+use unlucky_design::spacing::Space;
+use unlucky_design::typography::TypeRole;
+
+use crate::app::Message;
+use crate::cli::ForcedState;
+use crate::icons;
+use crate::shell::overridden;
+use crate::theme::Ui;
+
+use super::{nav_item_height, nav_rail_width, NavItem};
+
+/// 导航轨底部的**账户头像位**状态（M114）。
+///
+/// 为什么单独传而不是塞进 `NavItem`：它不是主序列里的第 6 项（那会让轨道越堆越长），
+/// 而是固定在**底部**的一个头像位；未登录/已登录两态要在**形状上**就不同（描边剪影 vs 首字母块）。
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct RailAccount {
+    /// 是否已登录（至少有一个账户）
+    pub signed_in: bool,
+    /// 首字母块的字（已登录时有意义）
+    pub initial: String,
+    /// 账户名（已登录时作为标签；未登录时是 i18n 的「未登录」）
+    pub label: String,
+    /// 窄高度/窄宽下的图标条形态（隐藏文字标签，只留头像位）
+    pub compact: bool,
+}
+
+impl RailAccount {
+    /// 未登录态。
+    pub fn signed_out(label: impl Into<String>) -> Self {
+        Self {
+            signed_in: false,
+            initial: String::new(),
+            label: label.into(),
+            compact: false,
+        }
+    }
+
+    /// 已登录态。
+    pub fn signed_in(initial: impl Into<String>, label: impl Into<String>) -> Self {
+        Self {
+            signed_in: true,
+            initial: initial.into(),
+            label: label.into(),
+            compact: false,
+        }
+    }
+
+    /// 图标条形态（导航项太多/太窄时收起文字标签）。
+    #[must_use]
+    pub fn compact(mut self, compact: bool) -> Self {
+        self.compact = compact;
+        self
+    }
+}
+
+/// 轨底的账户头像位：未登录 = 描边剪影，已登录 = 首字母块（两态在**形状**上就不同）。
+pub(super) fn account_item<'a>(
+    ui: &'a Ui,
+    selected: NavItem,
+    account: &RailAccount,
+    indicator: (f32, f32),
+    forced: Option<ForcedState>,
+) -> Element<'a, Message> {
+    let (indicator_width, indicator_height) = indicator;
+    let active = selected == NavItem::Account;
+    let label_color = if active {
+        ui.color(Role::Secondary)
+    } else {
+        ui.color(Role::OnSurfaceVariant)
+    };
+
+    let avatar: Element<'a, Message> = if account.signed_in {
+        let style = ui.emphasized(TypeRole::TitleMedium);
+        container(
+            text(account.initial.clone())
+                .size(style.size_px)
+                .line_height(iced::widget::text::LineHeight::Absolute(iced::Pixels(
+                    style.line_height_px,
+                )))
+                .font(ui.font_of(style))
+                .color(ui.color(Role::OnSecondaryContainer)),
+        )
+        .width(Length::Fixed(avatar_size(ui, indicator_width)))
+        .height(Length::Fixed(avatar_size(ui, indicator_width)))
+        .align_x(Alignment::Center)
+        .align_y(Alignment::Center)
+        .style(move |_theme| container::Style {
+            background: Some(Background::Color(ui.color(Role::SecondaryContainer))),
+            border: Border {
+                radius: ui.radius(ShapeScale::Full, avatar_size(ui, indicator_width)),
+                ..Border::default()
+            },
+            ..container::Style::default()
+        })
+        .into()
+    } else {
+        container(icons::view::<Message>(
+            IconKind::User,
+            ui.color(Role::OnSurfaceVariant),
+        ))
+        .width(Length::Fixed(avatar_size(ui, indicator_width)))
+        .height(Length::Fixed(avatar_size(ui, indicator_width)))
+        .align_x(Alignment::Center)
+        .align_y(Alignment::Center)
+        .style(move |_theme| container::Style {
+            border: Border {
+                color: ui.color(Role::Outline),
+                width: 1.0,
+                radius: ui.radius(ShapeScale::Full, avatar_size(ui, indicator_width)),
+            },
+            ..container::Style::default()
+        })
+        .into()
+    };
+
+    let height = nav_item_height(ui, indicator_height);
+    let mut stack = column![avatar]
+        .spacing(ui.space(Space::X1))
+        .width(nav_rail_width(ui.metrics()))
+        .align_x(Alignment::Center);
+    if !account.compact {
+        // 用**拥有的**字符串画标签：`RailAccount` 是调用方临时算出来的状态，
+        // 借它的 `&str` 会让整棵树跟着那个临时值一起活（E0515）。
+        let style = ui.style(TypeRole::LabelSmall);
+        stack = stack.push(
+            text(account.label.clone())
+                .size(style.size_px)
+                .line_height(iced::widget::text::LineHeight::Absolute(iced::Pixels(
+                    style.line_height_px,
+                )))
+                .font(ui.font_of(style))
+                .color(label_color),
+        );
+    }
+
+    button(stack)
+        .width(nav_rail_width(ui.metrics()))
+        .height(height)
+        .padding(0)
+        .style(move |_theme: &IcedTheme, status| button::Style {
+            background: match overridden(forced, status) {
+                button::Status::Hovered if !active => Some(Background::Color(ui.state_over(
+                    StateLayer::Hover,
+                    Role::OnSurface,
+                    Role::Surface,
+                ))),
+                button::Status::Pressed if !active => Some(Background::Color(ui.state_over(
+                    StateLayer::Pressed,
+                    Role::OnSurface,
+                    Role::Surface,
+                ))),
+                _ => None,
+            },
+            text_color: label_color,
+            border: Border::default(),
+            shadow: Shadow::default(),
+            snap: true,
+        })
+        .on_press(Message::Select(NavItem::Account))
+        .into()
+}
+
+/// 头像位边长 = 指示器宽 − 16，但不超过 48（12b 里没有这个控件，按令牌栅格取整）。
+fn avatar_size(ui: &Ui, indicator_width: f32) -> f32 {
+    (indicator_width - Space::X4.dp()).min(ui.space(Space::X8) + Space::X2.dp())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn the_two_states_are_distinguishable() {
+        let out = RailAccount::signed_out("Not signed in");
+        assert!(!out.signed_in);
+        let on = RailAccount::signed_in("S", "Steve");
+        assert!(on.signed_in);
+        assert_eq!(on.initial, "S");
+        let compacted = on.clone().compact(true);
+        assert!(compacted.compact, "compact(true) 必须收成图标条");
+    }
+
+    #[test]
+    fn the_avatar_slot_fits_the_rail() {
+        use unlucky_design::color::SchemeFlavor;
+        use unlucky_design::typography::Platform;
+
+        use crate::theme::Families;
+
+        let ui = Ui::with_platform(
+            SchemeFlavor::Light,
+            Platform::Windows,
+            Families {
+                text: "Segoe UI",
+                display: "Segoe UI",
+                mono: "Consolas",
+            },
+        );
+        let width = super::super::indicator_size(ui.metrics()).0;
+        let size = avatar_size(&ui, width);
+        assert!(size > 0.0);
+        assert!(
+            size <= nav_rail_width(ui.metrics()),
+            "头像位不能比导航轨还宽（{size} > {}）",
+            nav_rail_width(ui.metrics())
+        );
+    }
+}
diff --git a/crates/i18n/src/catalog.rs b/crates/i18n/src/catalog.rs
index 0a274d3..3b870f3 100644
--- a/crates/i18n/src/catalog.rs
+++ b/crates/i18n/src/catalog.rs
@@ -113,6 +113,7 @@ macro_rules! finish {
 }
 
 mod agent;
+mod account;
 mod content;
 mod core_text;
 mod download;
@@ -132,6 +133,7 @@ mod golden;
 mod tests;
 
 use agent::agent_entries;
+use account::account_entries;
 use content::content_entries;
 use core_text::core_text_entries;
 use download::{download_entries, version_entries};
@@ -172,6 +174,9 @@ nav_entries! {
     // M109：内容库页。与 M107 同一条纪律——本域排在 main 已占住的链尾**之后**，
     // 于是 `Key::ALL` 顺序 = 金表顺序 = 先 main 的全部域，再 version，最后 content。
     content_entries,
+    // M114：账户页。同理**追加在 main 已占住的链尾之后**（先 content 再 account），
+    // 金表只追加不重排。
+    account_entries,
     finish,
     {}
 }
diff --git a/crates/i18n/src/catalog/account.rs b/crates/i18n/src/catalog/account.rs
new file mode 100644
index 0000000..5aa10ea
--- /dev/null
+++ b/crates/i18n/src/catalog/account.rs
@@ -0,0 +1,87 @@
+//! 账户页文案（M114 三轨：微软正版 / 第三方皮肤站 / 本地档案）。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。本域**追加在装配链末尾**，
+//! 所以金表（`catalog::golden`）里这批 key 也排在最后。
+//!
+//! ## 口径（不许改写成别的说法）
+//!
+//! 本地档案的说明必须带「仅本地/隔离网络测试用，无法连接启用正版验证的服务器」——
+//! 这是 README 已定的口径（`AccountTrackOfflineBody` / `AccountOfflineWarning` 两处都写全），
+//! 不许写成「兼容旧启动器迁移」这种暗示能进正版服的说法。
+//!
+//! 文案里**没有任何 token 字样**：账户页从不展示凭据（M114 审核红线），
+//! 「密码只用于这一次登录」这条提示是唯一提到密码的地方。
+
+macro_rules! account_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 页头 / 列表
+            AccountTitle => ("Accounts", "账户"),
+            AccountSubtitle => ("Microsoft, third-party skin servers and local profiles", "微软正版、第三方皮肤站与本地档案"),
+            AccountListTitle => ("All accounts", "全部账户"),
+            AccountAddedOn => ("Added {date}", "添加于 {date}"),
+            AccountActiveChip => ("Active", "当前"),
+            AccountSwitch => ("Use for launch", "切换为启动账户"),
+            AccountRelogin => ("Sign in again", "重新登录"),
+            AccountRemove => ("Remove", "删除"),
+            AccountKindMicrosoft => ("Microsoft", "微软正版"),
+            AccountKindAuthlib => ("Third-party skin server", "第三方皮肤站"),
+            AccountKindOffline => ("Local profile", "本地档案"),
+            AccountServer => ("Server {server}", "服务器 {server}"),
+            // ── 空态
+            AccountEmptyTitle => ("No accounts yet", "还没有账户"),
+            AccountEmptyBody => ("Add a Microsoft account, a third-party skin server account, or a local profile.", "添加微软正版账户、第三方皮肤站账户，或建一个本地档案。"),
+            AccountEmptyAction => ("Add an account", "添加账户"),
+            // ── 三条轨道的入口卡
+            AccountTrackMicrosoftTitle => ("Microsoft account", "微软正版"),
+            AccountTrackMicrosoftBody => ("Sign in with a device code or in your browser. Online servers require this kind of account.", "用设备码或浏览器登录。联机服务器必须用这种账户。"),
+            AccountTrackAuthlibTitle => ("Third-party skin server", "第三方皮肤站"),
+            AccountTrackAuthlibBody => ("An authlib-injector compatible server (LittleSkin and friends) brings its own skins and capes.", "兼容 authlib-injector 的皮肤站（如 LittleSkin）自带皮肤与披风。"),
+            AccountTrackOfflineTitle => ("Local profile", "本地档案"),
+            AccountTrackOfflineBody => ("Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+            AccountTrackOpen => ("Sign in", "登录"),
+            AccountTrackCreate => ("Create profile", "创建档案"),
+            AccountDialogClose => ("Close", "关闭"),
+            // ── 本地档案表单
+            AccountOfflineNameLabel => ("Profile name", "档案名"),
+            AccountOfflineNameHint => ("3–16 letters, digits or underscore", "3–16 位字母、数字或下划线"),
+            AccountOfflineSubmit => ("Create profile", "创建档案"),
+            AccountOfflineWarning => ("Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+            // ── 微软登录面板（设备码 / 授权码）
+            AccountDeviceCodeLabel => ("Enter this code", "输入这个用户码"),
+            AccountDeviceCodeCopy => ("Copy code", "复制用户码"),
+            AccountDeviceLinkCopy => ("Copy link", "复制链接"),
+            AccountDeviceOpenLink => ("Open link", "打开链接"),
+            AccountDeviceCountdown => ("{secs}s left", "剩 {secs}s"),
+            AccountDeviceExpired => ("This code has expired. Start again for a fresh one.", "这个用户码已过期，重新开始换一个新的。"),
+            AccountDeviceRetry => ("Try again", "重试"),
+            AccountDeviceCancel => ("Cancel", "取消"),
+            AccountDeviceBrowser => ("Sign in with browser", "用浏览器登录"),
+            AccountDeviceUseCode => ("Use a device code instead", "改用设备码"),
+            // ── 第三方站表单
+            AccountServerLabel => ("Server address", "服务器地址"),
+            AccountServerHint => ("API root, e.g. https://littleskin.cn/api/yggdrasil/", "API 根，例：https://littleskin.cn/api/yggdrasil/"),
+            AccountServerProbe => ("Check server", "校验服务器"),
+            AccountLoginNameLabel => ("Email or username", "邮箱或用户名"),
+            AccountPasswordLabel => ("Password", "密码"),
+            AccountPasswordHint => ("Used once for this sign-in. It is never stored.", "只在这次登录里用一次，不会保存。"),
+            AccountAuthlibSubmit => ("Sign in", "登录"),
+            AccountAuthlibIdleHint => ("Check the server address first; signing in only starts after the check passes.", "先校验服务器地址，通过之后才能登录。"),
+            // ── 皮肤区
+            AccountSkinTitle => ("Skin", "皮肤"),
+            AccountSkinNone => ("No skin available", "没有可用皮肤"),
+            AccountSkinHint => ("Skins come from the account's own server; nothing is generated locally.", "皮肤来自账户自己的服务器，本地不生成任何假皮肤。"),
+            // ── 导航轨底部头像
+            AccountRailSignedOut => ("Not signed in", "未登录"),
+            AccountDeviceHint => ("Open the link in your browser and enter the code above.", "在浏览器里打开链接，输入上面的用户码。"),
+            AccountDeviceBrowserHint => ("Finish the sign-in in the browser window we just opened; the link below also works.", "在我们刚打开的浏览器窗口里完成登录；下面的链接也能手动打开。"),
+            AccountServerChecking => ("Checking the server…", "正在校验服务器…"),
+            AccountServerOk => ("Server {server} is ready", "服务器 {server} 可用"),
+            AccountLoginFailed => ("Sign-in failed", "登录失败"),
+            AccountCurrentTitle => ("Current account", "当前账户"),
+        } }
+    };
+}
+
+pub(crate) use account_entries;
diff --git a/crates/i18n/src/catalog/golden.rs b/crates/i18n/src/catalog/golden.rs
index 013644f..e3b42af 100644
--- a/crates/i18n/src/catalog/golden.rs
+++ b/crates/i18n/src/catalog/golden.rs
@@ -304,4 +304,61 @@ pub(super) const GOLDEN: &[(&str, &str, &str)] = &[
     ("PackReasonSymlink", "symbolic link, skipped", "符号链接，已跳过"),
     ("PackReasonUnsafePath", "path fails the pack path rules, skipped", "路径过不了包内规整，已跳过"),
     ("PackReasonUnreadable", "cannot read it, skipped", "读不出来，已跳过"),
+    // ── M114 账户页：追加在 main 的全部域之后（金表只追加不重排）
+    ("AccountTitle", "Accounts", "账户"),
+    ("AccountSubtitle", "Microsoft, third-party skin servers and local profiles", "微软正版、第三方皮肤站与本地档案"),
+    ("AccountListTitle", "All accounts", "全部账户"),
+    ("AccountAddedOn", "Added {date}", "添加于 {date}"),
+    ("AccountActiveChip", "Active", "当前"),
+    ("AccountSwitch", "Use for launch", "切换为启动账户"),
+    ("AccountRelogin", "Sign in again", "重新登录"),
+    ("AccountRemove", "Remove", "删除"),
+    ("AccountKindMicrosoft", "Microsoft", "微软正版"),
+    ("AccountKindAuthlib", "Third-party skin server", "第三方皮肤站"),
+    ("AccountKindOffline", "Local profile", "本地档案"),
+    ("AccountServer", "Server {server}", "服务器 {server}"),
+    ("AccountEmptyTitle", "No accounts yet", "还没有账户"),
+    ("AccountEmptyBody", "Add a Microsoft account, a third-party skin server account, or a local profile.", "添加微软正版账户、第三方皮肤站账户，或建一个本地档案。"),
+    ("AccountEmptyAction", "Add an account", "添加账户"),
+    ("AccountTrackMicrosoftTitle", "Microsoft account", "微软正版"),
+    ("AccountTrackMicrosoftBody", "Sign in with a device code or in your browser. Online servers require this kind of account.", "用设备码或浏览器登录。联机服务器必须用这种账户。"),
+    ("AccountTrackAuthlibTitle", "Third-party skin server", "第三方皮肤站"),
+    ("AccountTrackAuthlibBody", "An authlib-injector compatible server (LittleSkin and friends) brings its own skins and capes.", "兼容 authlib-injector 的皮肤站（如 LittleSkin）自带皮肤与披风。"),
+    ("AccountTrackOfflineTitle", "Local profile", "本地档案"),
+    ("AccountTrackOfflineBody", "Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+    ("AccountTrackOpen", "Sign in", "登录"),
+    ("AccountTrackCreate", "Create profile", "创建档案"),
+    ("AccountDialogClose", "Close", "关闭"),
+    ("AccountOfflineNameLabel", "Profile name", "档案名"),
+    ("AccountOfflineNameHint", "3–16 letters, digits or underscore", "3–16 位字母、数字或下划线"),
+    ("AccountOfflineSubmit", "Create profile", "创建档案"),
+    ("AccountOfflineWarning", "Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+    ("AccountDeviceCodeLabel", "Enter this code", "输入这个用户码"),
+    ("AccountDeviceCodeCopy", "Copy code", "复制用户码"),
+    ("AccountDeviceLinkCopy", "Copy link", "复制链接"),
+    ("AccountDeviceOpenLink", "Open link", "打开链接"),
+    ("AccountDeviceCountdown", "{secs}s left", "剩 {secs}s"),
+    ("AccountDeviceExpired", "This code has expired. Start again for a fresh one.", "这个用户码已过期，重新开始换一个新的。"),
+    ("AccountDeviceRetry", "Try again", "重试"),
+    ("AccountDeviceCancel", "Cancel", "取消"),
+    ("AccountDeviceBrowser", "Sign in with browser", "用浏览器登录"),
+    ("AccountDeviceUseCode", "Use a device code instead", "改用设备码"),
+    ("AccountServerLabel", "Server address", "服务器地址"),
+    ("AccountServerHint", "API root, e.g. https://littleskin.cn/api/yggdrasil/", "API 根，例：https://littleskin.cn/api/yggdrasil/"),
+    ("AccountServerProbe", "Check server", "校验服务器"),
+    ("AccountLoginNameLabel", "Email or username", "邮箱或用户名"),
+    ("AccountPasswordLabel", "Password", "密码"),
+    ("AccountPasswordHint", "Used once for this sign-in. It is never stored.", "只在这次登录里用一次，不会保存。"),
+    ("AccountAuthlibSubmit", "Sign in", "登录"),
+    ("AccountAuthlibIdleHint", "Check the server address first; signing in only starts after the check passes.", "先校验服务器地址，通过之后才能登录。"),
+    ("AccountSkinTitle", "Skin", "皮肤"),
+    ("AccountSkinNone", "No skin available", "没有可用皮肤"),
+    ("AccountSkinHint", "Skins come from the account's own server; nothing is generated locally.", "皮肤来自账户自己的服务器，本地不生成任何假皮肤。"),
+    ("AccountRailSignedOut", "Not signed in", "未登录"),
+    ("AccountDeviceHint", "Open the link in your browser and enter the code above.", "在浏览器里打开链接，输入上面的用户码。"),
+    ("AccountDeviceBrowserHint", "Finish the sign-in in the browser window we just opened; the link below also works.", "在我们刚打开的浏览器窗口里完成登录；下面的链接也能手动打开。"),
+    ("AccountServerChecking", "Checking the server…", "正在校验服务器…"),
+    ("AccountServerOk", "Server {server} is ready", "服务器 {server} 可用"),
+    ("AccountLoginFailed", "Sign-in failed", "登录失败"),
+    ("AccountCurrentTitle", "Current account", "当前账户"),
 ];
diff --git a/crates/presenter/src/dto/accounts.rs b/crates/presenter/src/dto/accounts.rs
index ffbdd14..36deee4 100644
--- a/crates/presenter/src/dto/accounts.rs
+++ b/crates/presenter/src/dto/accounts.rs
@@ -3,6 +3,19 @@
 //! **凭据红线**：本模块（以及整个 `crate::dto`）只有 [`AccountView`] 这种公开字段视图。
 //! `core::auth` 的 `Credentials` / `MicrosoftSession` / token 永远不进 app 层——
 //! host 侧在拿到账户快照的那一刻就丢掉凭据，只留「能显示什么」。
+//!
+//! | 文件 | 职责 |
+//! |---|---|
+//! | 本文件 | 账户/登录**可见状态**（全部是可上屏字段） |
+//! | [`redact`] | 形状脱敏：JWT / 不透明串 / `token=...` 一律抹掉（第二道脱敏器） |
+//! | `tests` | 契约 round-trip + 凭据红线的入口断言 |
+
+mod redact;
+#[cfg(test)]
+#[path = "accounts/tests.rs"]
+mod tests;
+
+pub use redact::{looks_like_jwt, redact, REDACTED};
 
 use serde::{Deserialize, Serialize};
 
@@ -18,7 +31,7 @@ pub enum AccountKind {
 }
 
 impl AccountKind {
-    /// 徽标文字。
+    /// 徽标文字（CLI/终端用；GUI 走 i18n 词表，不读这里的中文）。
     pub fn label(self) -> &'static str {
         match self {
             Self::Offline => "离线",
@@ -60,9 +73,63 @@ pub struct AccountView {
     /// 登录名（微软轨才有；可空）
     pub login_name: String,
     /// 创建时间展示串（`2026-10-31 20:12`）
+    ///
+    /// 口径：core 的 `AccountMeta` 只有 `created_at_ms`，**没有 last-used**，所以列表上贴的是
+    /// 「添加于 {created}」，不伪造「最近使用」（缺口登记在 M114 报告）。
     pub created: String,
     /// 是否是当前启动使用的账户
     pub active: bool,
+    /// 第三方轨的认证服务器 API 根（其余轨为空串）
+    #[serde(default)]
+    pub server_url: String,
+    /// 皮肤原图（第三方轨才可能有；`None` = 没有/没取到，UI 退回首字母块）
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub skin: Option<SkinImage>,
+}
+
+impl AccountView {
+    /// 首字母块上的字：展示名第一个非空字符（大写化），空名字回落 `?`。
+    ///
+    /// 放在 DTO 而不是页面里，是为了「没有皮肤时画什么」这件事只有一处判据，两个 UI 版一致。
+    #[must_use]
+    pub fn monogram(&self) -> String {
+        self.name
+            .chars()
+            .find(|c| !c.is_whitespace())
+            .map(|c| c.to_uppercase().to_string())
+            .unwrap_or_else(|| "?".to_string())
+    }
+
+    /// 首字母块的取色索引（0..6）：由 `profile_id` 稳定推导，同一个人每次都是同一个色块。
+    #[must_use]
+    pub fn monogram_tone(&self) -> u8 {
+        let mut hash: u32 = 2_166_136_261;
+        for byte in self.profile_id.as_bytes() {
+            hash ^= u32::from(*byte);
+            hash = hash.wrapping_mul(16_777_619);
+        }
+        u8::try_from(hash % 6).unwrap_or(0)
+    }
+}
+
+/// 一张皮肤原图。
+///
+/// **停在「原图」这一层是刻意的**：presenter 不引入图片解码依赖（`presenter-no-ui` +
+/// 依赖极简），裁剪/缩放/取首字母块都由 UI 层自己做。离线轨永远没有它——没有皮肤就不给假皮肤。
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
+pub struct SkinImage {
+    /// PNG 字节（Minecraft 皮肤：64×64 或旧版 64×32）
+    pub png: Vec<u8>,
+    /// 来源 URL（**只进取证日志，不上屏**）
+    pub source: String,
+}
+
+impl SkinImage {
+    /// 是否有可用字节（0 字节等同没有皮肤）。
+    #[must_use]
+    pub fn is_empty(&self) -> bool {
+        self.png.is_empty()
+    }
 }
 
 /// 微软登录阶段（UI 据此切换面板；两条流共用）。
@@ -174,7 +241,7 @@ impl DeviceLoginView {
             expires_in.max(1)
         );
         if let Some(warning) = warning {
-            message.push_str(&format!("（{warning}）"));
+            message.push_str(&format!("（{}）", redact(warning)));
         }
         Self {
             phase: DeviceLoginPhase::Waiting,
@@ -187,11 +254,11 @@ impl DeviceLoginView {
         }
     }
 
-    /// 失败态。
+    /// 失败态（文案在入口就脱敏：错误原文里可能带着服务端回显的 token）。
     pub fn failed(message: impl Into<String>) -> Self {
         Self {
             phase: DeviceLoginPhase::Failed,
-            message: message.into(),
+            message: redact(&message.into()),
             ..Self::new()
         }
     }
@@ -208,63 +275,119 @@ impl DeviceLoginView {
     }
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+/// 第三方轨（authlib-injector）登录请求。
+///
+/// **凭据红线**：`password` 只是「用户这一次输入的请求值」，从页面流到 host 的
+/// `AuthlibAuth::authenticate` 调用栈里，host 取走即弃——不入账户库、不进日志、
+/// 不进任何回程 DTO。所以本类型只有一个方向（UI → host），回程只有 [`AuthlibLoginView`]。
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct AuthlibRequest {
+    /// 认证服务器地址（用户原样输入；host 侧 `normalize_api_root` 规范化）
+    pub server: String,
+    /// 登录名（邮箱或用户名）
+    pub login: String,
+    /// 密码（只在本调用栈里出现）
+    pub password: String,
+}
 
-    #[test]
-    fn kind_round_trips_through_stable_ids() {
-        for kind in [
-            AccountKind::Offline,
-            AccountKind::Microsoft,
-            AccountKind::Authlib,
-        ] {
-            assert_eq!(AccountKind::parse(kind.as_str()), kind);
-            assert!(!kind.label().is_empty());
+impl AuthlibRequest {
+    /// 构造。
+    pub fn new(
+        server: impl Into<String>,
+        login: impl Into<String>,
+        password: impl Into<String>,
+    ) -> Self {
+        Self {
+            server: server.into(),
+            login: login.into(),
+            password: password.into(),
         }
     }
 
-    #[test]
-    fn device_login_view_never_carries_tokens() {
-        let view = DeviceLoginView::waiting("ABCD-EFGH", "https://www.microsoft.com/link", 900, "");
-        assert_eq!(view.phase, DeviceLoginPhase::Waiting);
-        assert!(view.phase.busy());
-        assert!(view.qr_link.contains("ABCD-EFGH"));
-        let json = serde_json::to_string(&view).expect("序列化");
-        for forbidden in ["token", "secret", "password", "refresh"] {
-            assert!(
-                !json.to_lowercase().contains(forbidden),
-                "视图里不该出现 {forbidden}"
-            );
+    /// 可打印形态（日志/诊断/错误路径用）：**密码恒被抹掉**。
+    #[must_use]
+    pub fn redacted(&self) -> String {
+        format!(
+            "server={} login={} password={REDACTED}",
+            redact(&self.server),
+            redact(&self.login)
+        )
+    }
+}
+
+/// 第三方轨登录的可见状态（阶段复用 [`DeviceLoginPhase`]：都是「申请 → 等待 → 成/败」）。
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct AuthlibLoginView {
+    /// 阶段
+    pub phase: DeviceLoginPhase,
+    /// 认证服务器地址（规范化后的 API 根）
+    pub server: String,
+    /// 服务发现里的服务器名（校验通过后才有；空 = 没校验/没名字）
+    pub server_name: String,
+    /// 状态/错误文案（已脱敏）
+    pub message: String,
+    /// 成功后入库的账户展示名
+    pub account_name: String,
+}
+
+impl Default for AuthlibLoginView {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl AuthlibLoginView {
+    /// 空闲态。
+    pub fn new() -> Self {
+        Self {
+            phase: DeviceLoginPhase::Idle,
+            server: String::new(),
+            server_name: String::new(),
+            message: String::new(),
+            account_name: String::new(),
+        }
+    }
+
+    /// 进行中（校验服务器地址 / 换 token）。
+    pub fn running(server: &str, message: &str) -> Self {
+        Self {
+            phase: DeviceLoginPhase::Requesting,
+            server: server.to_string(),
+            server_name: String::new(),
+            message: redact(message),
+            account_name: String::new(),
+        }
+    }
+
+    /// 地址校验通过（服务发现拿到了服务器名）。
+    pub fn reachable(server: &str, server_name: &str) -> Self {
+        Self {
+            phase: DeviceLoginPhase::Waiting,
+            server: server.to_string(),
+            server_name: redact(server_name),
+            message: format!("服务器可用：{}", server_name.trim()),
+            account_name: String::new(),
         }
     }
 
-    #[test]
-    fn browser_waiting_shows_a_copyable_link_instead_of_a_user_code() {
-        let view = DeviceLoginView::browser_waiting(
-            "https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize?client_id=x",
-            300,
-            Some("拉起浏览器失败"),
-        );
-        assert_eq!(view.phase, DeviceLoginPhase::Waiting);
-        assert!(view.phase.busy());
-        assert!(view.user_code.is_empty(), "授权码流没有用户码");
-        assert_eq!(view.qr_link, view.verification_uri);
-        assert!(view.message.contains("浏览器"));
-        assert!(view.message.contains("拉起浏览器失败"), "{}", view.message);
-        let json = serde_json::to_string(&view).expect("序列化");
-        for forbidden in ["refresh", "mc-access"] {
-            assert!(!json.contains(forbidden), "视图里不该出现 {forbidden}");
+    /// 失败态（文案在入口就脱敏）。
+    pub fn failed(message: impl Into<String>) -> Self {
+        Self {
+            phase: DeviceLoginPhase::Failed,
+            message: redact(&message.into()),
+            ..Self::new()
         }
     }
 
-    #[test]
-    fn succeeded_and_failed_clear_the_code() {
-        let ok = DeviceLoginView::succeeded("Steve");
-        assert_eq!(ok.phase, DeviceLoginPhase::Succeeded);
-        assert!(ok.user_code.is_empty());
-        let bad = DeviceLoginView::failed("网络超时");
-        assert_eq!(bad.phase, DeviceLoginPhase::Failed);
-        assert_eq!(bad.message, "网络超时");
+    /// 成功态。
+    pub fn succeeded(server_name: &str, account_name: impl Into<String>) -> Self {
+        let account_name = account_name.into();
+        Self {
+            phase: DeviceLoginPhase::Succeeded,
+            server_name: server_name.to_string(),
+            message: format!("已登录：{account_name}"),
+            account_name,
+            ..Self::new()
+        }
     }
 }
diff --git a/crates/presenter/src/dto/accounts/redact.rs b/crates/presenter/src/dto/accounts/redact.rs
new file mode 100644
index 0000000..c855d25
--- /dev/null
+++ b/crates/presenter/src/dto/accounts/redact.rs
@@ -0,0 +1,144 @@
+//! 凭据红线的**形状脱敏**：把 JWT / 不透明 token / `token=...` 这类串从任何要上屏的文案里抹掉。
+//!
+//! ## 为什么还要第二道脱敏器
+//!
+//! `core::launch::redact` 是**按已知明文值**替换的（拿着会话里的 token 原串去抹）。这里要挡的是
+//! **没登记过的**字符串：服务端在错误响应里回显一个 token、HTTP 库把 header 拼进错误文案、
+//! 某段调试串被画到面板上。两者互补，缺一不可：
+//!
+//! | 场景 | `core::launch::redact` | 本模块 |
+//! |---|---|---|
+//! | 已知会话 token 出现在日志里 | ✅ | ❌（不知道明文） |
+//! | 服务端回包里的陌生 JWT 被画到错误面板 | ❌ | ✅ |
+//!
+//! 走形状识别（三段 base64url / 超长不透明串 / 敏感键名）就够拦住「一眼能看出是凭据」的串，
+//! 而普通文案（URL、用户码 `ABCD-EFGH`、服务器名）**一个字都不动**——脱敏器本身不能变成噪音源。
+
+/// 脱敏占位符（**故意刺眼**：宁可难看，也不许静默把凭据画到屏幕上）。
+pub const REDACTED: &str = "⟪redacted⟫";
+
+/// 把一段要上屏的文案里的凭据形状串抹掉（空白与其余字符**原样保留**）。
+#[must_use]
+pub fn redact(text: &str) -> String {
+    let mut out = String::with_capacity(text.len());
+    for piece in text.split_inclusive(char::is_whitespace) {
+        let split = piece.find(char::is_whitespace).unwrap_or(piece.len());
+        let (chunk, space) = piece.split_at(split);
+        out.push_str(&redact_chunk(chunk));
+        out.push_str(space);
+    }
+    out
+}
+
+/// 单个「词」的脱敏：① 敏感键名的值 ② 整个词本身就是凭据形状。
+fn redact_chunk(chunk: &str) -> String {
+    if let Some((key, _value)) = chunk.split_once('=') {
+        if is_sensitive_key(key) || looks_opaque(chunk) {
+            return format!("{key}={REDACTED}");
+        }
+    }
+    if looks_opaque(chunk) {
+        return REDACTED.to_string();
+    }
+    chunk.to_string()
+}
+
+/// 键名是否属于「它的值一定是凭据」（`accessToken` / `refresh_token` / `password` …）。
+fn is_sensitive_key(key: &str) -> bool {
+    let key = key
+        .trim_matches(|c: char| !c.is_alphanumeric() && c != '_' && c != '-')
+        .to_lowercase();
+    [
+        "token",
+        "secret",
+        "password",
+        "passwd",
+        "authorization",
+        "bearer",
+        "session",
+    ]
+    .iter()
+    .any(|needle| key.contains(needle))
+}
+
+/// 词的形状是否像凭据：① 三段 base64url（JWT）② 长度 ≥40 的不透明串。
+fn looks_opaque(chunk: &str) -> bool {
+    let trimmed = chunk.trim_matches(|c: char| {
+        !c.is_ascii_alphanumeric() && c != '_' && c != '-' && c != '.' && c != '+'
+    });
+    looks_like_jwt(trimmed) || (trimmed.len() >= 40 && trimmed.chars().all(is_base64url))
+}
+
+/// 是否是 JWT 形状：`header.payload.signature`，三段都非空且够长、全是 base64url 字符。
+///
+/// 公开是为了单测能直接钉这条判据（UI 侧「注入 JWT 必须被抹掉」的测试也用它）。
+#[must_use]
+pub fn looks_like_jwt(token: &str) -> bool {
+    let parts: Vec<&str> = token.split('.').collect();
+    parts.len() == 3
+        && parts
+            .iter()
+            .all(|part| part.len() >= 8 && part.chars().all(is_base64url))
+}
+
+/// base64url 字母表（含 `=` 填充与 `+`/`/` 的宽容分支）。
+fn is_base64url(c: char) -> bool {
+    c.is_ascii_alphanumeric() || matches!(c, '-' | '_' | '+' | '/' | '=' | '.')
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /// 标准 JWT 形状（2 段 header/payload + 1 段签名）。
+    const JWT: &str =
+        "eyJhbGciOiJSUzI1NiIsIng1dCI6IkFCQyJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.c2lnbmF0dXJlLXZhbHVl";
+
+    #[test]
+    fn the_jwt_shape_judgement_is_not_a_length_heuristic() {
+        assert!(looks_like_jwt(JWT));
+        assert!(!looks_like_jwt("not.a.jwt"), "短段不算 JWT");
+        assert!(!looks_like_jwt("a.b.c.d"), "四段不算 JWT");
+        assert!(!looks_like_jwt("ABCD-EFGH"), "设备码不是 JWT");
+    }
+
+    #[test]
+    fn bare_jwts_and_sensitive_pairs_are_redacted() {
+        assert_eq!(redact(JWT), REDACTED);
+        assert_eq!(
+            redact(&format!("Bearer {JWT}")),
+            format!("Bearer {REDACTED}")
+        );
+        assert_eq!(
+            redact(&format!("accessToken={JWT}")),
+            format!("accessToken={REDACTED}")
+        );
+        // 敏感键名 + 短值（真实 refresh token 常常很短，靠键名兜）
+        assert_eq!(redact("password=hunter2"), format!("password={REDACTED}"));
+        assert_eq!(
+            redact("refresh_token=abc"),
+            format!("refresh_token={REDACTED}")
+        );
+    }
+
+    #[test]
+    fn ordinary_copy_is_left_byte_for_byte() {
+        for text in [
+            "在浏览器打开 https://www.microsoft.com/link 并输入 ABCD-EFGH",
+            "服务器不可达：dns error",
+            "HTTP 403 Forbidden — 该服务器要求白名单",
+            "",
+        ] {
+            assert_eq!(redact(text), text, "普通文案被改了：{text}");
+        }
+    }
+
+    #[test]
+    fn whitespace_and_line_breaks_survive() {
+        let text = format!("第一行 token={JWT}\n\n第二行  缩进");
+        let out = redact(&text);
+        assert!(out.contains("\n\n"), "{out}");
+        assert!(out.contains("  缩进"), "{out}");
+        assert!(!out.contains(JWT), "{out}");
+    }
+}
diff --git a/crates/presenter/src/dto/accounts/tests.rs b/crates/presenter/src/dto/accounts/tests.rs
new file mode 100644
index 0000000..fa26729
--- /dev/null
+++ b/crates/presenter/src/dto/accounts/tests.rs
@@ -0,0 +1,157 @@
+//! 账户 DTO 的契约测试（凭据红线的主要断言都在这里）。
+
+use super::*;
+
+#[test]
+fn kind_round_trips_through_stable_ids() {
+    for kind in [
+        AccountKind::Offline,
+        AccountKind::Microsoft,
+        AccountKind::Authlib,
+    ] {
+        assert_eq!(AccountKind::parse(kind.as_str()), kind);
+        assert!(!kind.label().is_empty());
+    }
+}
+
+#[test]
+fn device_login_view_never_carries_tokens() {
+    let view = DeviceLoginView::waiting("ABCD-EFGH", "https://www.microsoft.com/link", 900, "");
+    assert_eq!(view.phase, DeviceLoginPhase::Waiting);
+    assert!(view.phase.busy());
+    assert!(view.qr_link.contains("ABCD-EFGH"));
+    let json = serde_json::to_string(&view).expect("序列化");
+    for forbidden in ["token", "secret", "password", "refresh"] {
+        assert!(
+            !json.to_lowercase().contains(forbidden),
+            "视图里不该出现 {forbidden}"
+        );
+    }
+}
+
+#[test]
+fn browser_waiting_shows_a_copyable_link_instead_of_a_user_code() {
+    let view = DeviceLoginView::browser_waiting(
+        "https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize?client_id=x",
+        300,
+        Some("拉起浏览器失败"),
+    );
+    assert_eq!(view.phase, DeviceLoginPhase::Waiting);
+    assert!(view.phase.busy());
+    assert!(view.user_code.is_empty(), "授权码流没有用户码");
+    assert_eq!(view.qr_link, view.verification_uri);
+    assert!(view.message.contains("浏览器"));
+    assert!(view.message.contains("拉起浏览器失败"), "{}", view.message);
+    let json = serde_json::to_string(&view).expect("序列化");
+    for forbidden in ["refresh", "mc-access"] {
+        assert!(!json.contains(forbidden), "视图里不该出现 {forbidden}");
+    }
+}
+
+#[test]
+fn succeeded_and_failed_clear_the_code() {
+    let ok = DeviceLoginView::succeeded("Steve");
+    assert_eq!(ok.phase, DeviceLoginPhase::Succeeded);
+    assert!(ok.user_code.is_empty());
+    let bad = DeviceLoginView::failed("网络超时");
+    assert_eq!(bad.phase, DeviceLoginPhase::Failed);
+    assert_eq!(bad.message, "网络超时");
+}
+
+/// 凭据红线（审核项）：JWT 形状串从**任何**入口进来都必须被抹掉。
+///
+/// 抓得住：`redact` 被摘掉、判据被放宽成「长度 ≥40 就行」、或者某个构造器绕过它。
+/// 抓不住：真实凭据的明文值（那是 `core::launch::redact` 的活儿，按已知值替换）。
+#[test]
+fn jwt_shaped_text_is_redacted_at_every_entry_point() {
+    let jwt =
+        "eyJhbGciOiJSUzI1NiIsIng1dCI6IkFCQyJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.c2lnbmF0dXJlLXZhbHVl";
+
+    let device = DeviceLoginView::failed(format!("登录失败：accessToken={jwt}"));
+    assert!(!device.message.contains(jwt), "{}", device.message);
+    assert!(device.message.contains(REDACTED), "{}", device.message);
+
+    let authlib = AuthlibLoginView::failed(format!("服务器回包异常 {jwt}"));
+    assert!(!authlib.message.contains(jwt), "{}", authlib.message);
+    assert!(authlib.message.contains(REDACTED), "{}", authlib.message);
+
+    let ready = AuthlibLoginView::reachable("https://littleskin.cn/", "LittleSkin");
+    assert!(!ready.message.contains(jwt));
+}
+
+#[test]
+fn authlib_request_never_prints_the_password() {
+    let request = AuthlibRequest::new(
+        "https://littleskin.cn/api/yggdrasil/",
+        "me@example.com",
+        "hunter2",
+    );
+    let shown = request.redacted();
+    assert!(!shown.contains("hunter2"), "{shown}");
+    assert!(shown.contains("littleskin"), "{shown}");
+    assert!(shown.contains(REDACTED), "{shown}");
+}
+
+#[test]
+fn authlib_view_carries_the_server_name_and_no_tokens() {
+    let view = AuthlibLoginView::reachable("https://littleskin.cn/api/yggdrasil/", "LittleSkin");
+    assert_eq!(view.phase, DeviceLoginPhase::Waiting);
+    assert_eq!(view.server_name, "LittleSkin");
+    assert!(view.message.contains("LittleSkin"));
+
+    let ok = AuthlibLoginView::succeeded("LittleSkin", "Steve");
+    assert_eq!(ok.phase, DeviceLoginPhase::Succeeded);
+    assert_eq!(ok.account_name, "Steve");
+    let json = serde_json::to_string(&ok).expect("序列化");
+    for forbidden in ["accessToken", "clientToken", "refresh", "password"] {
+        assert!(!json.contains(forbidden), "视图里不该出现 {forbidden}");
+    }
+}
+
+#[test]
+fn account_view_serializes_without_credentials() {
+    let view = AccountView {
+        id: "account:a".to_string(),
+        name: "Steve".to_string(),
+        kind: AccountKind::Authlib,
+        profile_id: "0f8f".to_string(),
+        login_name: "me@example.com".to_string(),
+        created: "2026-10-31 20:12".to_string(),
+        active: true,
+        server_url: "https://littleskin.cn/api/yggdrasil/".to_string(),
+        skin: Some(SkinImage {
+            png: vec![1, 2, 3],
+            source: "textures".to_string(),
+        }),
+    };
+    let json = serde_json::to_string(&view).expect("序列化");
+    for forbidden in ["token", "secret", "password", "refresh"] {
+        assert!(
+            !json.to_lowercase().contains(forbidden),
+            "账户视图里不该出现 {forbidden}"
+        );
+    }
+    assert!(json.contains("\"png\""));
+}
+
+#[test]
+fn monogram_is_stable_and_never_empty() {
+    let mut view = AccountView {
+        id: "account:a".to_string(),
+        name: "  steve".to_string(),
+        kind: AccountKind::Microsoft,
+        profile_id: "0f8f".to_string(),
+        login_name: String::new(),
+        created: String::new(),
+        active: false,
+        server_url: String::new(),
+        skin: None,
+    };
+    assert_eq!(view.monogram(), "S");
+    let tone = view.monogram_tone();
+    assert!(tone < 6);
+    view.profile_id = "0f8f".to_string();
+    assert_eq!(view.monogram_tone(), tone, "同一个人每次同一个色块");
+    view.name = String::new();
+    assert_eq!(view.monogram(), "?", "空名字也要有字，不能画白块");
+}
diff --git a/crates/presenter/src/dto/events.rs b/crates/presenter/src/dto/events.rs
index 83ce28a..8f2eb27 100644
--- a/crates/presenter/src/dto/events.rs
+++ b/crates/presenter/src/dto/events.rs
@@ -9,10 +9,12 @@ use serde::{Deserialize, Serialize};
 use crate::dialogs::{DialogId, DialogRequest};
 use crate::dto::CreateRequest;
 use crate::dto::{
-    AccountView, AgentEvent, ContentInstallRequest, ContentQuery, ContentResults, DeviceLoginView,
-    DiagnosisReport, InstallProgressView, InstanceId, InstanceRuntime, InstanceSummary,
-    JavaPageView, LoaderKind, LogLine, LogOutcome, LogSession, NoticeView, PackCommand, PackEvent,
-    SessionId, SettingGroupView, VersionCategory, VersionSummary,
+    // 主线（M109 的 Content* / M113 的 Pack*）与 M114 的 Authlib* 的并集。
+    AccountView, AgentEvent, AuthlibLoginView, AuthlibRequest, ContentInstallRequest, ContentQuery,
+    ContentResults, DeviceLoginView, DiagnosisReport, InstallProgressView, InstanceId,
+    InstanceRuntime, InstanceSummary, JavaPageView, LoaderKind, LogLine, LogOutcome, LogSession,
+    NoticeView, PackCommand, PackEvent, SessionId, SettingGroupView, VersionCategory,
+    VersionSummary,
 };
 use crate::toast::Toast;
 
@@ -68,6 +70,8 @@ pub enum CoreEvent {
     AccountsChanged(Vec<AccountView>),
     /// 微软登录状态刷新
     DeviceLoginChanged(DeviceLoginView),
+    /// 第三方轨（authlib-injector）登录/校验状态刷新
+    AuthlibLoginChanged(AuthlibLoginView),
     /// Java 页快照（发行版/回退链/运行时）
     JavaChanged(JavaPageView),
     /// 安装进度（`None` = 清掉进度面板）
@@ -168,6 +172,12 @@ pub enum AppCommand {
     StartBrowserLogin,
     /// 取消/关掉微软登录面板（已发出的请求会在收尾时丢弃结果）
     CancelDeviceLogin,
+    /// 加一个第三方皮肤站（authlib-injector）账户：校验服务器 + 密码登录
+    ///
+    /// **凭据红线**：`request.password` 只是这一次的请求值，host 用完即弃，绝不进回程 DTO。
+    AddAuthlibAccount(AuthlibRequest),
+    /// 只校验第三方皮肤站地址（服务发现）：结果走 `AuthlibLoginChanged`
+    ProbeAuthlibServer(String),
     /// 安装指定发行版的托管 JDK（`temurin` / `oracle` / `microsoft` / `zulu`）
     InstallJava(String),
     /// 写一条设置（`key` 必须是 core schema 里的键）
@@ -246,6 +256,8 @@ mod tests {
             login_name: String::new(),
             created: "2026-10-31 20:12".to_string(),
             active: true,
+            server_url: String::new(),
+            skin: None,
         }]));
         let text = serde_json::to_string(&account).expect("序列化");
         let back: AppEvent = serde_json::from_str(&text).expect("反序列化");
@@ -273,5 +285,29 @@ mod tests {
             login
         );
         assert!(DeviceLoginPhase::Waiting.busy());
+
+        // 第三方轨（M114）：请求进、状态出，两边都不带 token 字段
+        let authlib = AppCommand::AddAuthlibAccount(AuthlibRequest::new(
+            "https://littleskin.cn/api/yggdrasil/",
+            "me@example.com",
+            "hunter2",
+        ));
+        let text = serde_json::to_string(&authlib).expect("序列化");
+        assert_eq!(
+            serde_json::from_str::<AppCommand>(&text).expect("反序列化"),
+            authlib
+        );
+
+        let view = AppEvent::Core(CoreEvent::AuthlibLoginChanged(AuthlibLoginView::reachable(
+            "https://littleskin.cn/api/yggdrasil/",
+            "LittleSkin",
+        )));
+        let text = serde_json::to_string(&view).expect("序列化");
+        let back: AppEvent = serde_json::from_str(&text).expect("反序列化");
+        assert_eq!(back, view);
+        assert!(
+            !text.to_lowercase().contains("token"),
+            "回程视图里不该有 token"
+        );
     }
 }
diff --git a/crates/presenter/src/dto/mod.rs b/crates/presenter/src/dto/mod.rs
index 8c1529d..5a1a3d2 100644
--- a/crates/presenter/src/dto/mod.rs
+++ b/crates/presenter/src/dto/mod.rs
@@ -28,7 +28,10 @@ mod pack;
 mod settings;
 mod versions;
 
-pub use accounts::{AccountKind, AccountView, DeviceLoginPhase, DeviceLoginView};
+pub use accounts::{
+    looks_like_jwt, redact, AccountKind, AccountView, AuthlibLoginView, AuthlibRequest,
+    DeviceLoginPhase, DeviceLoginView, SkinImage, REDACTED,
+};
 pub use agent::{AgentEvent, ChatMessage, ChatRole, ConfirmRequest, Sensitivity, ToolCallView};
 pub use content::{
     loader_facet, ContentHit, ContentInstallRequest, ContentKind, ContentQuery, ContentResults,
diff --git a/crates/presenter/src/host/accounts.rs b/crates/presenter/src/host/accounts.rs
index 46c767a..426f7ef 100644
--- a/crates/presenter/src/host/accounts.rs
+++ b/crates/presenter/src/host/accounts.rs
@@ -25,6 +25,11 @@ use super::env::HostEnv;
 use super::job::{spawn, HostTask, JobSender};
 use super::opener;
 
+/// 第三方轨（服务发现 / 密码登录 / 皮肤抓取）。
+pub mod authlib;
+
+pub use authlib::{fetch_skin, spawn_probe, start_login as start_authlib_login};
+
 /// 账户列表（公开字段）。
 pub fn accounts(env: &HostEnv, active: Option<&str>) -> Vec<AccountView> {
     let store = AccountStore::open(env.layout.auth_data());
@@ -39,6 +44,9 @@ pub fn accounts(env: &HostEnv, active: Option<&str>) -> Vec<AccountView> {
             login_name: meta.login_name.clone().unwrap_or_default(),
             created: display_ms(meta.created_at_ms),
             active: active.is_some_and(|id| id == meta.id.as_str()),
+            server_url: meta.server_url.clone().unwrap_or_default(),
+            // 皮肤是网络产物：列表先给 `None`，host 抓到之后按账户 id 盖回去（见 `CoreHost`）
+            skin: None,
         })
         .collect()
 }
diff --git a/crates/presenter/src/host/accounts/authlib.rs b/crates/presenter/src/host/accounts/authlib.rs
new file mode 100644
index 0000000..e2515e9
--- /dev/null
+++ b/crates/presenter/src/host/accounts/authlib.rs
@@ -0,0 +1,385 @@
+//! 第三方轨（authlib-injector）：服务发现校验、密码登录、皮肤原图抓取。
+//!
+//! 全部跑在后台线程里（网络），出口只有 [`AuthlibLoginView`] / [`SkinImage`]——
+//! 密码与 accessToken 在调用栈里就地丢弃，永不进 DTO 回程（M114 凭据红线）。
+//!
+//! ## 三条流的坐标
+//!
+//! | 动作 | 端点 | 产出 |
+//! |---|---|---|
+//! | 服务发现（「校验」按钮） | `GET {apiRoot}` | 服务器名 / skinDomains（`meta` 缺失即判「不是认证服务器」） |
+//! | 登录 | `POST {apiRoot}authserver/authenticate` | `AuthlibSession`（入库，不外传） |
+//! | 皮肤 | `GET {apiRoot}sessionserver/session/minecraft/profile/{uuid}` → textures → 皮肤 URL | 皮肤 PNG 原图 |
+//!
+//! `core::download::http::build_client` 是唯一的 HTTP 基座（复用下载器的客户端配置），
+//! 所以本 crate **不新增任何依赖**（`presenter-no-ui` 与依赖最小化同时成立）。
+
+use unlucky_core::auth::account::{AccountKind as CoreAccountKind, AccountMeta, Credentials};
+use unlucky_core::auth::authlib::{
+    normalize_api_root, AuthlibAuth, AuthlibServerMeta, AuthlibSession,
+};
+use unlucky_core::auth::microsoft::now_ms;
+use unlucky_core::auth::{AccountStore, Secret};
+use unlucky_core::download::blocking::block_on;
+
+use crate::dto::{AuthlibLoginView, AuthlibRequest, SkinImage, REDACTED};
+
+use super::super::engine;
+use super::super::env::HostEnv;
+use super::super::job::{spawn, HostTask, JobSender};
+use super::LoginJob;
+
+/// 一次 GET 的超时上限（秒）：服务器不可达时要能失败，而不是挂住 UI 的登录面板。
+const HTTP_TIMEOUT_SECS: u64 = 15;
+
+/// 校验认证服务器地址（「校验」按钮的后端）。
+///
+/// # Errors
+///
+/// 地址不合法、网络不可达、HTTP 非 2xx、响应不是 authlib-injector 的服务发现 JSON 时，
+/// 返回**具名**的用户可读文案（这是任务要求的「失败态 + 具名错误」）。
+pub fn probe_authlib(env: &HostEnv, input: &str) -> Result<(String, AuthlibServerMeta), String> {
+    let api_root = normalize_api_root(input).map_err(|error| error.to_string())?;
+    let (status, text) = get_text(env, &api_root)?;
+    if !(200..300).contains(&status) {
+        return Err(format!(
+            "服务器返回 HTTP {status}（{api_root} 不像可用的 authlib 认证服务器）"
+        ));
+    }
+    let value: serde_json::Value = serde_json::from_str(&text).map_err(|_| {
+        format!("响应不是 JSON：{api_root} —— 可能填成了网页地址，而不是 API 根（通常以 /api/yggdrasil/ 结尾）")
+    })?;
+    if value.get("meta").is_none() && value.get("skinDomains").is_none() {
+        return Err(
+            "响应里没有 meta / skinDomains：这看起来不是 authlib-injector 服务器".to_string(),
+        );
+    }
+    let meta = AuthlibServerMeta::from_value(&value);
+    Ok((api_root, meta))
+}
+
+/// 起一次第三方轨登录（后台线程）。
+pub fn start_login(env: HostEnv, tx: JobSender, job: LoginJob, request: AuthlibRequest) {
+    spawn("authlib-login", move || {
+        let mut request = request;
+        // 日志只打脱敏形态；密码在下面用完立刻丢弃。
+        eprintln!("[auth] authlib 登录开始（{}）", request.redacted());
+        stage(&tx, &request.server, "正在校验服务器地址…");
+
+        let (api_root, meta) = match probe_authlib(&env, &request.server) {
+            Ok(found) => found,
+            Err(reason) => return fail(&tx, reason),
+        };
+        let server_name = meta
+            .name
+            .clone()
+            .filter(|name| !name.trim().is_empty())
+            .unwrap_or_else(|| api_root.clone());
+        stage(
+            &tx,
+            &api_root,
+            &format!("服务器 {server_name} 可用，正在登录…"),
+        );
+
+        let auth = match AuthlibAuth::new() {
+            Ok(auth) => auth,
+            Err(error) => return fail(&tx, error.to_string()),
+        };
+        let client_token = Secret::new(client_token());
+        let password_text = std::mem::take(&mut request.password);
+        let password = Secret::new(password_text.clone());
+        let login_name = request.login.clone();
+        let result = block_on(auth.authenticate(&api_root, &login_name, &password, &client_token));
+        drop(password);
+
+        if job.is_cancelled() {
+            let _ = tx.send(HostTask::Authlib(Box::default()));
+            return;
+        }
+        match result {
+            Ok(session) => match store(&env, session, &api_root, &login_name) {
+                Ok(account) => {
+                    let _ = tx.send(HostTask::Authlib(Box::new(AuthlibLoginView::succeeded(
+                        &server_name,
+                        &account,
+                    ))));
+                    let _ = tx.send(HostTask::Accounts(super::accounts(
+                        &env,
+                        Some(account.as_str()),
+                    )));
+                }
+                Err(reason) => fail(&tx, reason),
+            },
+            // 错误原文里可能有服务端回显的凭据：先按**形状**脱敏（`AuthlibLoginView::failed`），
+            // 再按**已知值**兜一遍（万一服务端把密码原样回显）。
+            Err(error) => fail(&tx, scrub_known(&error.to_string(), &password_text)),
+        }
+        drop(password_text);
+    });
+}
+
+/// 只校验服务器地址（「校验服务器」按钮）；结果走同一条 `AuthlibLoginChanged`。
+pub fn spawn_probe(env: HostEnv, tx: JobSender, server: String) {
+    spawn("authlib-probe", move || {
+        stage(&tx, &server, "正在校验服务器地址…");
+        match probe_authlib(&env, &server) {
+            Ok((api_root, meta)) => {
+                let name = meta
+                    .name
+                    .as_deref()
+                    .map(str::trim)
+                    .filter(|name| !name.is_empty())
+                    .map_or_else(|| api_root.clone(), str::to_string);
+                let _ = tx.send(HostTask::Authlib(Box::new(AuthlibLoginView::reachable(
+                    &api_root, &name,
+                ))));
+            }
+            Err(reason) => fail(&tx, reason),
+        }
+    });
+}
+
+/// 抓第三方轨账户的皮肤原图（`profile_id` → textures → 皮肤 URL → PNG 字节）。
+///
+/// # Errors
+///
+/// 服务器不可达、响应缺 textures、纹理不是 PNG 时返回原因（调用方按「没有皮肤」处理）。
+pub fn fetch_skin(env: &HostEnv, api_root: &str, profile_id: &str) -> Result<SkinImage, String> {
+    let base = normalize_api_root(api_root).map_err(|error| error.to_string())?;
+    let url = format!("{base}sessionserver/session/minecraft/profile/{profile_id}");
+    let (status, text) = get_text(env, &url)?;
+    if !(200..300).contains(&status) {
+        return Err(format!("皮肤接口返回 HTTP {status}"));
+    }
+    let value: serde_json::Value =
+        serde_json::from_str(&text).map_err(|error| format!("皮肤接口响应不是 JSON：{error}"))?;
+    let encoded = value
+        .get("properties")
+        .and_then(|properties| properties.as_array())
+        .and_then(|properties| {
+            properties
+                .iter()
+                .find(|entry| entry.get("name").and_then(|name| name.as_str()) == Some("textures"))
+        })
+        .and_then(|entry| entry.get("value"))
+        .and_then(|value| value.as_str())
+        .ok_or_else(|| "档案里没有 textures 属性".to_string())?;
+    let raw = base64_decode(encoded)?;
+    let textures: serde_json::Value =
+        serde_json::from_slice(&raw).map_err(|error| format!("textures 属性解不开：{error}"))?;
+    let skin_url = textures
+        .get("textures")
+        .and_then(|textures| textures.get("SKIN"))
+        .and_then(|skin| skin.get("url"))
+        .and_then(|url| url.as_str())
+        .ok_or_else(|| "textures 里没有 SKIN 条目".to_string())?;
+    let (status, bytes) = get_bytes(env, skin_url)?;
+    if !(200..300).contains(&status) {
+        return Err(format!("皮肤图片返回 HTTP {status}"));
+    }
+    if !bytes.starts_with(b"\x89PNG") {
+        return Err("皮肤图片不是 PNG".to_string());
+    }
+    Ok(SkinImage {
+        png: bytes,
+        source: skin_url.to_string(),
+    })
+}
+
+/// 入库（元数据 + 凭据分文件）；返回展示名。
+fn store(
+    env: &HostEnv,
+    session: AuthlibSession,
+    api_root: &str,
+    login_name: &str,
+) -> Result<String, String> {
+    let profile = session
+        .selected_profile
+        .clone()
+        .filter(|profile| !profile.name.trim().is_empty() && !profile.id.is_empty())
+        .ok_or_else(|| {
+            "服务器没有返回角色：这个账号可能还没在皮肤站里创建角色（建好后再试）".to_string()
+        })?;
+    let mut meta = AccountMeta::new(
+        CoreAccountKind::AuthlibInjector,
+        profile.id,
+        profile.name,
+        now_ms(),
+    );
+    meta.login_name = Some(login_name.to_string());
+    meta.server_url = Some(api_root.to_string());
+    let name = meta.display_name().to_string();
+    let mut account_store = AccountStore::open(env.layout.auth_data());
+    account_store
+        .insert(meta, Credentials::AuthlibInjector(session))
+        .and_then(|()| account_store.save())
+        .map_err(|error| format!("账户入库失败：{error}"))?;
+    Ok(name)
+}
+
+/// 发一条「进行中」状态（UI 据此只转圈不误报）。
+fn stage(tx: &JobSender, server: &str, message: &str) {
+    let _ = tx.send(HostTask::Authlib(Box::new(AuthlibLoginView::running(
+        server, message,
+    ))));
+}
+
+/// 失败收尾：**先脱敏再上屏**（服务端错误原文里可能带 token）。
+fn fail(tx: &JobSender, message: String) {
+    let _ = tx.send(HostTask::Authlib(Box::new(AuthlibLoginView::failed(
+        message,
+    ))));
+}
+
+/// 启动器侧生成的 `clientToken`（Yggdrasil 要求刷新/校验都带，且服务端回传必须一致）。
+fn client_token() -> String {
+    use std::hash::{BuildHasher, Hasher};
+    let mut out = String::with_capacity(32);
+    for salt in 0..2u64 {
+        // `RandomState` 每个实例自带随机种子（标准库给的是进程级随机），不引第三方随机库。
+        let mut hasher = std::collections::hash_map::RandomState::new().build_hasher();
+        hasher.write_u64(now_ms() ^ salt);
+        hasher.write_u32(std::process::id());
+        out.push_str(&format!("{:016x}", hasher.finish()));
+    }
+    out
+}
+
+/// GET 文本（状态码 + 正文）。
+///
+/// 客户端来自**既有的下载引擎**（`host::engine::engine`）：代理/超时/证书栈与本仓的下载器
+/// 完全同源，不在这里另起一套 HTTP 配置（本 crate 也没有 reqwest 依赖，拿到的只是它的 `&Client`）。
+fn get_text(env: &HostEnv, url: &str) -> Result<(u16, String), String> {
+    let engine = engine::engine(env);
+    let client = engine.client();
+    let url = url.to_string();
+    block_on(async move {
+        let reply = client
+            .get(&url)
+            .timeout(std::time::Duration::from_secs(HTTP_TIMEOUT_SECS))
+            .send()
+            .await
+            .map_err(|error| format!("服务器不可达：{error}"))?;
+        let status = reply.status().as_u16();
+        let text = reply
+            .text()
+            .await
+            .map_err(|error| format!("读取响应失败：{error}"))?;
+        Ok((status, text))
+    })
+}
+
+/// GET 字节（皮肤图片）。
+fn get_bytes(env: &HostEnv, url: &str) -> Result<(u16, Vec<u8>), String> {
+    let engine = engine::engine(env);
+    let client = engine.client();
+    let url = url.to_string();
+    block_on(async move {
+        let reply = client
+            .get(&url)
+            .timeout(std::time::Duration::from_secs(HTTP_TIMEOUT_SECS))
+            .send()
+            .await
+            .map_err(|error| format!("皮肤图片不可达：{error}"))?;
+        let status = reply.status().as_u16();
+        let bytes = reply
+            .bytes()
+            .await
+            .map_err(|error| format!("读取皮肤图片失败：{error}"))?
+            .to_vec();
+        Ok((status, bytes))
+    })
+}
+
+/// base64 解码（标准字母表，容忍 URL-safe 变体与缺失填充）。
+///
+/// 为什么自己写：textures 属性是 base64 编码的 JSON，而本 crate 不能引第三方解码库
+/// （依赖最小化）；这段是 40 行的确定性算法，配单测比拖一个依赖更划算。
+fn base64_decode(input: &str) -> Result<Vec<u8>, String> {
+    let mut out = Vec::with_capacity(input.len() / 4 * 3);
+    let mut buffer: u32 = 0;
+    let mut bits = 0u32;
+    for byte in input.bytes() {
+        let value = match byte {
+            b'A'..=b'Z' => byte - b'A',
+            b'a'..=b'z' => byte - b'a' + 26,
+            b'0'..=b'9' => byte - b'0' + 52,
+            b'+' | b'-' => 62,
+            b'/' | b'_' => 63,
+            b'=' | b'\n' | b'\r' | b' ' => continue,
+            other => return Err(format!("base64 里有非法字符：{:?}", other as char)),
+        };
+        buffer = (buffer << 6) | u32::from(value);
+        bits += 6;
+        if bits >= 8 {
+            bits -= 8;
+            out.push(u8::try_from((buffer >> bits) & 0xFF).unwrap_or(0));
+        }
+    }
+    if out.is_empty() {
+        return Err("base64 内容为空".to_string());
+    }
+    Ok(out)
+}
+
+/// 错误文案里可能混进已知凭据值：按值再兜一遍（形状脱敏由 `AuthlibLoginView::failed` 做）。
+#[must_use]
+pub fn scrub_known(message: &str, secret: &str) -> String {
+    if secret.is_empty() {
+        return message.to_string();
+    }
+    message.replace(secret, REDACTED)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn base64_decodes_textures_payload() {
+        // `{"textures":{}}` 的 base64
+        let encoded = "eyJ0ZXh0dXJlcyI6e319";
+        assert_eq!(base64_decode(encoded).expect("解码"), br#"{"textures":{}}"#);
+        // URL-safe 变体 + 填充 + 换行都要吃
+        assert_eq!(
+            base64_decode("eyJ0ZXh0dXJlcyI6e319\n").expect("解码"),
+            br#"{"textures":{}}"#
+        );
+        assert!(base64_decode("!!!").is_err());
+        assert!(base64_decode("").is_err());
+    }
+
+    #[test]
+    fn client_token_is_stable_length_and_unique() {
+        let a = client_token();
+        let b = client_token();
+        assert_eq!(a.len(), 32);
+        assert_ne!(
+            a, b,
+            "两次生成的 clientToken 不能相同（会被服务端当成重放）"
+        );
+        assert!(a.chars().all(|c| c.is_ascii_hexdigit()));
+    }
+
+    #[test]
+    fn known_secret_is_scrubbed_from_error_text() {
+        let text = scrub_known("登录失败：hunter2 被拒绝", "hunter2");
+        assert!(!text.contains("hunter2"), "{text}");
+        assert!(text.contains(REDACTED));
+        assert_eq!(scrub_known("普通错误", ""), "普通错误");
+    }
+
+    #[test]
+    fn a_web_page_address_is_rejected_with_a_named_error() {
+        // 不发网络请求：只测「规范化 + 空输入」这条不联网的分支
+        let dir = std::env::temp_dir().join(format!("ull-authlib-probe-{}", std::process::id()));
+        let _ = std::fs::remove_dir_all(&dir);
+        let env = HostEnv::at_root(&dir);
+        std::fs::create_dir_all(env.layout.cache()).expect("cache");
+        let error = probe_authlib(&env, "   ").expect_err("空地址必须报错");
+        assert!(error.contains("不能为空"), "{error}");
+        let error = probe_authlib(&env, "https://").expect_err("只给协议头也必须报错");
+        assert!(!error.is_empty());
+        std::fs::remove_dir_all(&dir).ok();
+    }
+}
diff --git a/crates/presenter/src/host/dispatch.rs b/crates/presenter/src/host/dispatch.rs
index 276d1f6..6bf3c60 100644
--- a/crates/presenter/src/host/dispatch.rs
+++ b/crates/presenter/src/host/dispatch.rs
@@ -154,9 +154,31 @@ impl CoreHost {
                     job.cancel();
                 }
                 self.login = None;
+                // 第三方轨的面板也归这条「关掉登录面板」：两条轨都不该留一个转不完的圈
+                if let Some(job) = &self.authlib {
+                    job.cancel();
+                }
+                self.authlib = None;
                 self.send(CoreEvent::DeviceLoginChanged(
                     crate::dto::DeviceLoginView::new(),
                 ));
+                self.send(CoreEvent::AuthlibLoginChanged(
+                    crate::dto::AuthlibLoginView::new(),
+                ));
+            }
+            AppCommand::AddAuthlibAccount(request) => {
+                self.authlib = Some(LoginJob::new());
+                let job = self.authlib.clone().unwrap_or_default();
+                self.send(CoreEvent::AuthlibLoginChanged(
+                    crate::dto::AuthlibLoginView::running(&request.server, "正在校验服务器地址…"),
+                ));
+                accounts::start_authlib_login(self.env.clone(), self.tx.clone(), job, request);
+            }
+            AppCommand::ProbeAuthlibServer(server) => {
+                // 只探活：后台线程跑服务发现，结果回到同一条 `AuthlibLoginChanged`
+                let env = self.env.clone();
+                let tx = self.tx.clone();
+                accounts::spawn_probe(env, tx, server);
             }
             AppCommand::InstallJava(vendor) => {
                 self.java_busy = true;
diff --git a/crates/presenter/src/host/handle.rs b/crates/presenter/src/host/handle.rs
index f225d3d..d203296 100644
--- a/crates/presenter/src/host/handle.rs
+++ b/crates/presenter/src/host/handle.rs
@@ -91,6 +91,13 @@ impl CoreHost {
                 self.refresh_instances();
             }
             HostTask::Login(view) => self.send(CoreEvent::DeviceLoginChanged(*view)),
+            HostTask::Authlib(view) => self.send(CoreEvent::AuthlibLoginChanged(*view)),
+            HostTask::Avatar { id, skin } => {
+                // 抓到/没抓到都记下来（`None` = 试过了，不再重试），再把列表盖好发出去
+                self.skins.insert(id, skin);
+                self.attach_skins();
+                self.send(CoreEvent::AccountsChanged(self.accounts.clone()));
+            }
             HostTask::Java(page) => self.send(CoreEvent::JavaChanged(*page)),
             HostTask::Logs {
                 sessions,
diff --git a/crates/presenter/src/host/job.rs b/crates/presenter/src/host/job.rs
index bfe0631..871b21e 100644
--- a/crates/presenter/src/host/job.rs
+++ b/crates/presenter/src/host/job.rs
@@ -7,9 +7,11 @@
 use std::sync::mpsc::{Receiver, Sender};
 
 use crate::dto::{
-    AccountView, ContentResults, DeviceLoginView, DiagnosisReport, InstallProgressView, InstanceId,
-    InstanceRuntime, JavaPageView, LaunchFinished, LiveLogBatch, LoaderKind, LogLine, LogOutcome,
-    LogSession, NoticeView, PackEvent, SessionId, VersionSummary,
+    // 主线（M109 ContentResults / M105 LoaderKind / M113 PackEvent）与 M114 的账户轨并集。
+    AccountView, AuthlibLoginView, ContentResults, DeviceLoginView, DiagnosisReport,
+    InstallProgressView, InstanceId, InstanceRuntime, JavaPageView, LaunchFinished, LiveLogBatch,
+    LoaderKind, LogLine, LogOutcome, LogSession, NoticeView, PackEvent, SessionId, SkinImage,
+    VersionSummary,
 };
 use crate::toast::Toast;
 
@@ -66,6 +68,15 @@ pub enum HostTask {
     Accounts(Vec<AccountView>),
     /// 设备码登录状态
     Login(Box<DeviceLoginView>),
+    /// 第三方轨（authlib-injector）登录/校验状态
+    Authlib(Box<AuthlibLoginView>),
+    /// 账户皮肤抓取结果（`skin = None` = 没取到；UI 退回首字母块）
+    Avatar {
+        /// 账户 id
+        id: String,
+        /// 皮肤原图
+        skin: Option<SkinImage>,
+    },
     /// Java 页（发行版/回退链/运行时）
     Java(Box<JavaPageView>),
     /// 日志页快照（会话列表 + 选中会话的行 + 诊断）
diff --git a/crates/presenter/src/host/mod.rs b/crates/presenter/src/host/mod.rs
index eaa1154..9bc3578 100644
--- a/crates/presenter/src/host/mod.rs
+++ b/crates/presenter/src/host/mod.rs
@@ -37,8 +37,8 @@ use std::collections::{BTreeMap, BTreeSet, VecDeque};
 use std::time::Duration;
 
 use crate::dto::{
-    AccountView, AppCommand, AppEvent, Backend, CoreEvent, DiagnosisReport, InstallProgressView,
-    InstanceRuntime, JavaChainStep, NoticeView,
+    AccountKind, AccountView, AppCommand, AppEvent, Backend, CoreEvent, DiagnosisReport,
+    InstallProgressView, InstanceRuntime, JavaChainStep, NoticeView, SkinImage,
 };
 use crate::mock::MockBackend;
 use crate::toast::{Toast, ToastKind};
@@ -72,6 +72,13 @@ pub struct CoreHost {
     active_account: Option<String>,
     accounts: Vec<AccountView>,
     login: Option<LoginJob>,
+    /// 第三方轨（authlib）登录任务句柄（与微软两条流共用取消语义，但**不复用槽位**：
+    /// 两条轨同时点「登录」时各自的结果不能互相踩）
+    authlib: Option<LoginJob>,
+    /// 已抓到的皮肤（账户 id → 原图；`None` = 试过但没取到，不再重试）
+    skins: BTreeMap<String, Option<SkinImage>>,
+    /// 已经发起过皮肤抓取的账户 id（防每次刷新都重新抓一遍）
+    skin_requested: BTreeSet<String>,
     java_chain: Vec<JavaChainStep>,
     java_busy: bool,
     java_message: String,
@@ -126,6 +133,9 @@ impl CoreHost {
             active_account: None,
             accounts: Vec::new(),
             login: None,
+            authlib: None,
+            skins: BTreeMap::new(),
+            skin_requested: BTreeSet::new(),
             java_chain: Vec::new(),
             java_busy: false,
             java_message: String::new(),
@@ -219,9 +229,54 @@ impl CoreHost {
             self.active_account = self.accounts.first().map(|account| account.id.clone());
             self.accounts = accounts::accounts(&self.env, self.active_account.as_deref());
         }
+        self.attach_skins();
+        self.request_skins();
         self.send(CoreEvent::AccountsChanged(self.accounts.clone()));
     }
 
+    /// 把已抓到的皮肤盖到账户视图上。
+    ///
+    /// 只盖第三方轨：离线档案没有皮肤，微软轨不做真头像（M114 口径）——
+    /// 「没有皮肤就画首字母块」，绝不给假皮肤/白块。
+    fn attach_skins(&mut self) {
+        for account in &mut self.accounts {
+            if account.kind != AccountKind::Authlib {
+                account.skin = None;
+                continue;
+            }
+            if let Some(skin) = self.skins.get(&account.id) {
+                account.skin = skin.clone();
+            }
+        }
+    }
+
+    /// 给还没抓过皮肤的第三方轨账户起后台抓取（每个账户只抓一次）。
+    ///
+    /// 抓不到就记 `None`：错误在面板上不显示（皮肤是装饰，不是业务失败），但也不会重试刷屏。
+    fn request_skins(&mut self) {
+        let mut pending = Vec::new();
+        for account in &self.accounts {
+            if account.kind != AccountKind::Authlib || account.server_url.trim().is_empty() {
+                continue;
+            }
+            if self.skin_requested.insert(account.id.clone()) {
+                pending.push((
+                    account.id.clone(),
+                    account.server_url.clone(),
+                    account.profile_id.clone(),
+                ));
+            }
+        }
+        for (id, server, profile) in pending {
+            let tx = self.tx.clone();
+            let env = self.env.clone();
+            job::spawn("account-skin", move || {
+                let skin = accounts::fetch_skin(&env, &server, &profile).ok();
+                let _ = tx.send(HostTask::Avatar { id, skin });
+            });
+        }
+    }
+
     fn refresh_java(&mut self) {
         let page = java::page(
             &self.env,
diff --git a/crates/presenter/src/mock.rs b/crates/presenter/src/mock.rs
index 38d99be..856f419 100644
--- a/crates/presenter/src/mock.rs
+++ b/crates/presenter/src/mock.rs
@@ -16,6 +16,9 @@ use crate::dto::{
 use crate::mock_data::{mock_instances, mock_log_lines, mock_log_sessions, mock_versions};
 use crate::toast::{Toast, ToastKind};
 
+#[path = "mock/accounts.rs"]
+mod accounts_screen;
+
 /// 启动脚本：按时间推进 download → verify → launch → running。
 #[derive(Debug)]
 struct LaunchScript {
@@ -65,6 +68,18 @@ impl MockBackend {
             )));
         self.events
             .push_back(AppEvent::Core(CoreEvent::LogLinesChanged(mock_log_lines())));
+        self.seed_accounts();
+    }
+
+    /// 账户页的截图矩阵（`ULL_ACCOUNT_STATE`，见 [`accounts_screen`]）。
+    fn seed_accounts(&mut self) {
+        let scenario = accounts_screen::scenario();
+        self.emit(AppEvent::Core(CoreEvent::AccountsChanged(
+            accounts_screen::accounts(&scenario),
+        )));
+        if let Some(view) = accounts_screen::device_login(&scenario) {
+            self.emit(AppEvent::Core(CoreEvent::DeviceLoginChanged(view)));
+        }
     }
 
     fn emit(&mut self, event: AppEvent) {
@@ -260,7 +275,8 @@ impl Backend for MockBackend {
                     crate::mock_data::mock_diagnosis(id),
                 )));
             }
-            AppCommand::RefreshAll | AppCommand::RefreshLogSessions | AppCommand::StopAgent => {}
+            AppCommand::RefreshAll => self.seed_accounts(),
+            AppCommand::RefreshLogSessions | AppCommand::StopAgent => {}
             // 其余指令（安装向导/账户/Java/设置/通知）由真实 host 承接：mock 不模拟
             _ => {}
         }
@@ -281,7 +297,12 @@ mod tests {
     fn seeds_instances_and_versions() {
         let mut backend = MockBackend::new();
         let events = backend.drain_events();
-        assert_eq!(events.len(), 4);
+        // 实例 / 版本 / 会话 / 日志行 **+ 账户页的种子**（M114：账户列表 + 可选的登录面板态）
+        assert!(
+            events.len() >= 5,
+            "至少含账户列表，实际 {} 条",
+            events.len()
+        );
         assert!(events
             .iter()
             .all(|event| matches!(event, AppEvent::Core(_))));
diff --git a/crates/presenter/src/mock/accounts.rs b/crates/presenter/src/mock/accounts.rs
new file mode 100644
index 0000000..5439dad
--- /dev/null
+++ b/crates/presenter/src/mock/accounts.rs
@@ -0,0 +1,126 @@
+//! 截图/演示用的账户矩阵（**只在 mock 后端**里被调用）。
+//!
+//! D30 要求账户页出五态 × 浅深：空态 / 多账号列表 / 设备码进行中 / 登录失败 / 第三方站表单。
+//! 截图通道强制 mock 后端（`AppOptions::mock`），所以这五态的**数据**必须由 mock 造：
+//! 走 `ULL_ACCOUNT_STATE` 选场景，与 `ULL_START_ROUTE` / `ULL_APPEARANCE_*` 同一套取证开关。
+//!
+//! ## 造的是什么、不造什么
+//!
+//! - 列表行造的是**公开字段**（名字 / 轨道 / 创建时间 / 服务器），与真 host 的
+//!   `AccountView` 同构；
+//! - **不造皮肤字节**：第三方轨的真图来自服务器，mock 里没有（伪造一张「假皮肤」正好违反
+//!   M114 的口径）。所以截图里皮肤区显示的是首字母块 + 「没有可用皮肤」。
+
+use crate::dto::{AccountKind, AccountView, DeviceLoginView};
+
+/// 场景名（`ULL_ACCOUNT_STATE`；未知值按 `list` 处理）。
+pub(super) fn scenario() -> String {
+    std::env::var("ULL_ACCOUNT_STATE")
+        .unwrap_or_else(|_| "list".to_string())
+        .trim()
+        .to_lowercase()
+}
+
+/// 场景对应的账户列表（`empty` 场景是空表 ⇒ 空态）。
+pub(super) fn accounts(scenario: &str) -> Vec<AccountView> {
+    if scenario == "empty" {
+        return Vec::new();
+    }
+    vec![
+        account(
+            "account:mock-msa",
+            "Steve",
+            AccountKind::Microsoft,
+            "8f2f1d3c4b5a69788796a5b4c3d2e1f0",
+            "steve@outlook.com",
+            "2026-10-28 20:12",
+            true,
+            "",
+        ),
+        account(
+            "account:mock-authlib",
+            "Alex",
+            AccountKind::Authlib,
+            "0a1b2c3d4e5f60718293a4b5c6d7e8f9",
+            "alex@example.com",
+            "2026-10-30 09:40",
+            false,
+            "https://littleskin.cn/api/yggdrasil/",
+        ),
+        account(
+            "account:mock-offline",
+            "Herobrine",
+            AccountKind::Offline,
+            "3c4d5e6f708192a3b4c5d6e7f8091a2b",
+            "",
+            "2026-10-31 21:05",
+            false,
+            "",
+        ),
+    ]
+}
+
+/// 场景对应的登录面板状态（`None` = 没有面板）。
+pub(super) fn device_login(scenario: &str) -> Option<DeviceLoginView> {
+    match scenario {
+        "device" | "expired" => Some(DeviceLoginView::waiting(
+            "ABCD-EFGH",
+            "https://www.microsoft.com/link",
+            900,
+            "",
+        )),
+        "failed" => Some(DeviceLoginView::failed(
+            "微软拒绝了这次登录：AADSTS7000218（HTTP 403）—— 应用白名单还没批准，或网络被拦截",
+        )),
+        _ => None,
+    }
+}
+
+#[allow(clippy::too_many_arguments)]
+fn account(
+    id: &str,
+    name: &str,
+    kind: AccountKind,
+    profile_id: &str,
+    login_name: &str,
+    created: &str,
+    active: bool,
+    server_url: &str,
+) -> AccountView {
+    AccountView {
+        id: id.to_string(),
+        name: name.to_string(),
+        kind,
+        profile_id: profile_id.to_string(),
+        login_name: login_name.to_string(),
+        created: created.to_string(),
+        active,
+        server_url: server_url.to_string(),
+        skin: None,
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn the_empty_scenario_has_no_rows_and_the_list_scenario_covers_all_three_tracks() {
+        assert!(accounts("empty").is_empty());
+        let rows = accounts("list");
+        assert_eq!(rows.len(), 3);
+        assert!(rows.iter().any(|row| row.kind == AccountKind::Microsoft));
+        assert!(rows.iter().any(|row| row.kind == AccountKind::Authlib));
+        assert!(rows.iter().any(|row| row.kind == AccountKind::Offline));
+        assert_eq!(rows.iter().filter(|row| row.active).count(), 1);
+        assert!(rows.iter().all(|row| row.skin.is_none()), "mock 不伪造皮肤");
+    }
+
+    #[test]
+    fn the_device_states_are_renderable() {
+        assert!(device_login("device").is_some_and(|view| !view.user_code.is_empty()));
+        assert!(device_login("failed")
+            .is_some_and(|view| view.phase == crate::dto::DeviceLoginPhase::Failed));
+        assert!(device_login("list").is_none());
+    }
+}
diff --git a/crates/presenter/src/router.rs b/crates/presenter/src/router.rs
index 7b2f46d..5a38e21 100644
--- a/crates/presenter/src/router.rs
+++ b/crates/presenter/src/router.rs
@@ -35,6 +35,11 @@ pub enum Route {
     Logs,
     /// G6 设置页
     Settings,
+    /// G7 账户页（三轨登录：微软正版 / 第三方皮肤站 / 本地档案）
+    ///
+    /// 一级页，但**不进主序列**：入口是导航轨底部的头像位（`shell/nav.rs`），
+    /// 所以 [`Route::nav`] 对它返回 `None`（不点亮四个主项中的任何一个）。
+    Accounts,
     /// 实例详情（G4）：从磁贴点进来，返回时回到实例页
     Detail(InstanceId),
     /// AI 助手独立页（D16 双形态之一）
@@ -46,7 +51,13 @@ impl Route {
     pub fn is_top_level(&self) -> bool {
         matches!(
             self,
-            Self::Instances | Self::Download | Self::Content | Self::Logs | Self::Settings
+            // M109 的 `Content` 与 M114 的 `Accounts` 都是一级页：两个都留。
+            Self::Instances
+                | Self::Download
+                | Self::Content
+                | Self::Logs
+                | Self::Settings
+                | Self::Accounts
         )
     }
 
@@ -57,7 +68,7 @@ impl Route {
             Self::Download | Self::Content => Some(NavSection::Download),
             Self::Logs => Some(NavSection::Logs),
             Self::Settings => Some(NavSection::Settings),
-            Self::Agent => None,
+            Self::Accounts | Self::Agent => None,
         }
     }
 }
diff --git a/crates/presenter/src/state.rs b/crates/presenter/src/state.rs
index ae42cff..b521911 100644
--- a/crates/presenter/src/state.rs
+++ b/crates/presenter/src/state.rs
@@ -6,9 +6,11 @@
 use crate::agent::AgentRail;
 use crate::dialogs::DialogQueue;
 use crate::dto::{
-    AccountView, AgentEvent, AppEvent, CoreEvent, DeviceLoginView, DiagnosisReport,
-    InstallProgressView, InstanceRuntime, InstanceSummary, JavaPageView, LoaderKind, LogLine,
-    LogSession, NoticeView, PackState, Progress, SettingGroupView, VersionSummary,
+    // 主线（M105 的 `LoaderKind` / M113 的 `PackState`）与 M114 的 `AuthlibLoginView` 并集。
+    AccountView, AgentEvent, AppEvent, AuthlibLoginView, CoreEvent, DeviceLoginView,
+    DiagnosisReport, InstallProgressView, InstanceRuntime, InstanceSummary, JavaPageView,
+    LoaderKind, LogLine, LogSession, NoticeView, PackState, Progress, SettingGroupView,
+    VersionSummary,
 };
 use crate::prefs::UiPrefs;
 // 内容库的视图态与其 DTO 放一起（`dto/content.rs`），路径 `state::ContentState` 不变。
@@ -17,6 +19,13 @@ use crate::router::{AiPanelMode, Route, Router};
 use crate::toast::{ToastCenter, ToastKind};
 use crate::wizard::WizardState;
 
+// 账户/登录状态（倒计时、上屏前二次脱敏）拆在 `state/accounts.rs`，守 400 行硬线。
+//
+// `AiSession` 不再存在：M104 把它换成了 `crate::agent::AgentRail`（agent 栏的视图模型），
+// 所以这里没有 `mod ai;` / `pub use ai::AiSession;`——M114 r1 曾把旧结构搬到 `state/ai.rs`，
+// 该文件已随 rebase 删除，**以 main 的 agent 契约为准**。
+mod accounts;
+
 /// 磁贴网格单元：位置由 [`grid_positions`] 算好，UI 侧只消费 row/col。
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub struct TileCell<'a> {
@@ -79,6 +88,10 @@ pub struct AppState {
     pub accounts: Vec<AccountView>,
     /// 微软登录状态
     pub device_login: DeviceLoginView,
+    /// 第三方轨（authlib-injector）登录/校验状态
+    pub authlib_login: AuthlibLoginView,
+    /// 设备码等待态的开始时刻（倒计时；`None` = 没有在等）
+    pub device_login_started: Option<std::time::Instant>,
     /// Java 页快照（发行版 / 回退链 / 运行时）
     pub java: JavaPageView,
     /// 安装进度（None = 没有安装任务）
@@ -140,6 +153,8 @@ impl AppState {
             download_query: String::new(),
             accounts: Vec::new(),
             device_login: DeviceLoginView::new(),
+            authlib_login: AuthlibLoginView::new(),
+            device_login_started: None,
             java: JavaPageView::new(),
             install: None,
             install_cancelled: 0,
@@ -237,16 +252,8 @@ impl AppState {
             }
             CoreEvent::DiagnosisReady(report) => self.diagnosis = Some(report),
             CoreEvent::AccountsChanged(accounts) => self.accounts = accounts,
-            CoreEvent::DeviceLoginChanged(view) => {
-                if view.phase == crate::dto::DeviceLoginPhase::Succeeded {
-                    self.toasts
-                        .push(ToastKind::Success, format!("已登录：{}", view.account_name));
-                }
-                if view.phase == crate::dto::DeviceLoginPhase::Failed {
-                    self.toasts.push(ToastKind::Error, view.message.clone());
-                }
-                self.device_login = view;
-            }
+            CoreEvent::DeviceLoginChanged(view) => self.apply_device_login(view),
+            CoreEvent::AuthlibLoginChanged(view) => self.apply_authlib_login(view),
             CoreEvent::JavaChanged(page) => self.java = page,
             CoreEvent::InstallProgress(progress) => match progress {
                 Some(progress) => {
diff --git a/crates/presenter/src/state/accounts.rs b/crates/presenter/src/state/accounts.rs
new file mode 100644
index 0000000..d1a4583
--- /dev/null
+++ b/crates/presenter/src/state/accounts.rs
@@ -0,0 +1,204 @@
+//! 账户/登录状态：事件落地（含**上屏前再脱敏**）、设备码倒计时、当前账户查询。
+//!
+//! 从 `state.rs` 拆出来守 400 行硬线；`AppState` 的字段仍在那个文件里，
+//! 这里只加它的 `impl`（同一个 crate 的固有 impl 可以拆在多个文件）。
+
+use std::time::Instant;
+
+use crate::dto::{AccountView, AuthlibLoginView, DeviceLoginPhase, DeviceLoginView, REDACTED};
+use crate::toast::ToastKind;
+
+use super::AppState;
+
+impl AppState {
+    /// 微软登录状态落地。
+    ///
+    /// **凭据红线（M114）**：这里对 `message` 再做一次形状脱敏。DTO 的构造器已经脱过一遍，
+    /// 但状态层是**所有**事件都要过的唯一闸口——将来谁新加一个构造器忘了脱敏，也不会把
+    /// 服务端回显的 token 画到面板上。脱敏是幂等的，重复做没有代价。
+    pub fn apply_device_login(&mut self, mut view: DeviceLoginView) {
+        view.message = crate::dto::redact(&view.message);
+        view.account_name = crate::dto::redact(&view.account_name);
+        match view.phase {
+            DeviceLoginPhase::Succeeded => {
+                self.toasts
+                    .push(ToastKind::Success, format!("已登录：{}", view.account_name));
+                self.device_login_started = None;
+            }
+            DeviceLoginPhase::Failed => {
+                self.toasts.push(ToastKind::Error, view.message.clone());
+                self.device_login_started = None;
+            }
+            DeviceLoginPhase::Waiting => {
+                // 每次进入等待态都重记起点：换流/重试之后倒计时必须从头算
+                if self.device_login.phase != DeviceLoginPhase::Waiting
+                    || self.device_login.user_code != view.user_code
+                {
+                    self.device_login_started = Some(Instant::now());
+                }
+            }
+            DeviceLoginPhase::Idle | DeviceLoginPhase::Requesting => {
+                self.device_login_started = None;
+            }
+        }
+        self.device_login = view;
+    }
+
+    /// 第三方轨登录状态落地（同样在状态层再脱敏一遍）。
+    pub fn apply_authlib_login(&mut self, mut view: AuthlibLoginView) {
+        view.message = crate::dto::redact(&view.message);
+        view.server_name = crate::dto::redact(&view.server_name);
+        match view.phase {
+            DeviceLoginPhase::Succeeded => {
+                self.toasts
+                    .push(ToastKind::Success, format!("已登录：{}", view.account_name));
+            }
+            DeviceLoginPhase::Failed => {
+                self.toasts.push(ToastKind::Error, view.message.clone());
+            }
+            _ => {}
+        }
+        self.authlib_login = view;
+    }
+
+    /// 设备码/授权码还剩几秒（`None` = 没有在等 / 不知道有效期）。
+    ///
+    /// 纯计算 + 一个起点，UI 侧每秒重问一次就能画出倒计时——这也让「过期」成为**可观测**的
+    /// 状态（任务要求：设备码不得只转圈，过期要显示「已过期，重试」）。
+    pub fn device_code_remaining(&self) -> Option<u64> {
+        self.device_code_remaining_at(Instant::now())
+    }
+
+    /// [`Self::device_code_remaining`] 的可注入时钟版本（单测用）。
+    pub fn device_code_remaining_at(&self, now: Instant) -> Option<u64> {
+        if self.device_login.phase != DeviceLoginPhase::Waiting {
+            return None;
+        }
+        let expires = self.device_login.expires_in;
+        if expires == 0 {
+            return None;
+        }
+        let started = self.device_login_started?;
+        let elapsed = now.saturating_duration_since(started).as_secs();
+        Some(expires.saturating_sub(elapsed))
+    }
+
+    /// 当前启动账户（列表里 `active == true` 的那条）。
+    pub fn active_account(&self) -> Option<&AccountView> {
+        self.accounts.iter().find(|account| account.active)
+    }
+
+    /// 面板要显示的脱敏占位符（守门测试用：值不该出现在任何可见文案里）。
+    pub const REDACTED: &'static str = REDACTED;
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const JWT: &str =
+        "eyJhbGciOiJSUzI1NiIsIng1dCI6IkFCQyJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.c2lnbmF0dXJlLXZhbHVl";
+
+    fn state() -> AppState {
+        AppState::new()
+    }
+
+    /// 凭据红线：**绕过构造器**直接塞一个带 JWT 的事件，状态层必须把它抹掉。
+    ///
+    /// 抓得住：`apply_device_login` / `apply_authlib_login` 里的脱敏被删（那是「最后一个闸口」）。
+    /// 抓不住：恶意的 UI 层（如果有人绕过 `AppState` 直接画 DTO）。
+    #[test]
+    fn a_token_injected_into_events_never_reaches_the_state() {
+        let mut state = state();
+        state.apply_device_login(DeviceLoginView {
+            phase: DeviceLoginPhase::Failed,
+            message: format!("登录失败：accessToken={JWT}"),
+            ..DeviceLoginView::new()
+        });
+        assert!(
+            !state.device_login.message.contains(JWT),
+            "{}",
+            state.device_login.message
+        );
+        assert!(state.device_login.message.contains(REDACTED));
+
+        state.apply_authlib_login(AuthlibLoginView {
+            phase: DeviceLoginPhase::Failed,
+            message: format!("服务器回包 {JWT}"),
+            ..AuthlibLoginView::new()
+        });
+        assert!(
+            !state.authlib_login.message.contains(JWT),
+            "{}",
+            state.authlib_login.message
+        );
+    }
+
+    #[test]
+    fn the_device_code_countdown_is_derived_from_a_start_instant() {
+        let mut state = state();
+        state.apply_device_login(DeviceLoginView::waiting(
+            "ABCD-EFGH",
+            "https://www.microsoft.com/link",
+            900,
+            "",
+        ));
+        let started = state.device_login_started.expect("等待态要记起点");
+        assert_eq!(state.device_code_remaining_at(started), Some(900));
+        let later = started + std::time::Duration::from_secs(120);
+        assert_eq!(state.device_code_remaining_at(later), Some(780));
+        let expired = started + std::time::Duration::from_secs(901);
+        assert_eq!(
+            state.device_code_remaining_at(expired),
+            Some(0),
+            "过期后是 0，不是 None"
+        );
+
+        // 没有在等的时候不画倒计时
+        state.apply_device_login(DeviceLoginView::failed("网络超时"));
+        assert_eq!(state.device_code_remaining_at(started), None);
+    }
+
+    #[test]
+    fn a_new_waiting_view_restarts_the_countdown() {
+        let mut state = state();
+        state.apply_device_login(DeviceLoginView::waiting("AAAA-AAAA", "https://a", 900, ""));
+        let first = state.device_login_started.expect("起点");
+        state.apply_device_login(DeviceLoginView::waiting("BBBB-BBBB", "https://a", 900, ""));
+        let second = state.device_login_started.expect("起点");
+        assert!(second >= first, "换了一个用户码就要重算倒计时");
+    }
+
+    #[test]
+    fn the_active_account_is_the_one_marked_active() {
+        let mut state = state();
+        state.accounts = vec![
+            AccountView {
+                id: "account:a".to_string(),
+                name: "Steve".to_string(),
+                kind: crate::dto::AccountKind::Microsoft,
+                profile_id: "0f8f".to_string(),
+                login_name: String::new(),
+                created: String::new(),
+                active: false,
+                server_url: String::new(),
+                skin: None,
+            },
+            AccountView {
+                id: "account:b".to_string(),
+                name: "Alex".to_string(),
+                kind: crate::dto::AccountKind::Offline,
+                profile_id: "1a2b".to_string(),
+                login_name: String::new(),
+                created: String::new(),
+                active: true,
+                server_url: String::new(),
+                skin: None,
+            },
+        ];
+        assert_eq!(
+            state.active_account().map(|a| a.name.as_str()),
+            Some("Alex")
+        );
+    }
+}