diff --git a/frontend/src/assets/styles/index.css b/frontend/src/assets/styles/index.css
index 7091743..daad5d6 100644
--- a/frontend/src/assets/styles/index.css
+++ b/frontend/src/assets/styles/index.css
@@ -30,6 +30,9 @@
   --ys-text: #1c2333;
   --ys-muted: #5b6577;
 
+  /* 品牌字：思源黑体（实施时自托管 4 字子集，内网可用） */
+  --ys-font-brand: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
+
   /*
    * Element Plus 主色 = 靛蓝（白字对比约 7.5:1）。
    * 色阶为按 Element Plus 公式「主色与白色混合」预先算好的静态值 ——
diff --git a/frontend/src/components/layout/AppMenu.vue b/frontend/src/components/layout/AppMenu.vue
index ac0f945..c850200 100644
--- a/frontend/src/components/layout/AppMenu.vue
+++ b/frontend/src/components/layout/AppMenu.vue
@@ -24,26 +24,42 @@ const { topLevelMenus, groupedMenus } = useAppMenu()
 
 <style scoped>
 /*
- * 深色底上的菜单：覆盖 Element Plus 的主题变量而非直接写颜色 ——
+ * 中性灰侧栏上的菜单：覆盖 Element Plus 的主题变量而非直接写颜色 ——
  * 后者与组件库规则同权重，受样式注入顺序影响而不稳定。
- * 激活色用亮金（深色底专用档，见 index.css 的金色两档约定）。
+ * 激活项 = 白底浮起（微渐变 + 内高光 + 分层阴影）+ 左侧 2px 靛蓝条。
  */
 .app-menu {
   --el-menu-bg-color: transparent;
-  --el-menu-text-color: rgb(250 250 247 / 78%);
-  --el-menu-active-color: var(--ys-gold-bright);
-  --el-menu-hover-bg-color: rgb(255 255 255 / 6%);
-  --el-menu-item-height: 44px;
+  --el-menu-text-color: var(--ys-ink-2);
+  --el-menu-active-color: var(--ys-indigo);
+  --el-menu-hover-bg-color: rgba(255, 255, 255, 0.6);
+  --el-menu-item-height: 40px;
 
   border-right: none;
 }
 
 .app-menu :deep(.el-menu-item.is-active) {
-  background-color: rgb(201 162 39 / 12%);
-  font-weight: 600;
+  position: relative;
+  background: linear-gradient(180deg, #ffffff, #fbfcfe);
+  box-shadow:
+    inset 0 1px 0 #fff,
+    0 1px 2px rgba(28, 35, 51, 0.06),
+    0 4px 10px rgba(28, 35, 51, 0.06);
+  font-weight: 500;
+}
+
+.app-menu :deep(.el-menu-item.is-active)::before {
+  content: '';
+  position: absolute;
+  left: -14px;
+  top: 9px;
+  bottom: 9px;
+  width: 2px;
+  border-radius: 1px;
+  background: var(--ys-indigo);
 }
 
 .app-menu :deep(.el-sub-menu.is-active > .el-sub-menu__title) {
-  color: var(--ys-gold-bright);
+  color: var(--ys-indigo);
 }
 </style>
diff --git a/frontend/src/components/layout/BasicLayout.vue b/frontend/src/components/layout/BasicLayout.vue
index 9476f51..be56057 100644
--- a/frontend/src/components/layout/BasicLayout.vue
+++ b/frontend/src/components/layout/BasicLayout.vue
@@ -42,6 +42,7 @@ async function handleLogout(): Promise<void> {
       <div class="app-brand">
         <span class="app-brand__name">衍水集团</span>
         <span class="app-brand__sub">营销人员工资管理系统</span>
+        <span class="app-brand__line"></span>
       </div>
       <AppMenu class="app-aside__menu" />
     </el-aside>
@@ -96,6 +97,7 @@ async function handleLogout(): Promise<void> {
       <div class="app-brand">
         <span class="app-brand__name">衍水集团</span>
         <span class="app-brand__sub">营销人员工资管理系统</span>
+        <span class="app-brand__line"></span>
       </div>
       <AppMenu />
     </el-drawer>
@@ -110,27 +112,39 @@ async function handleLogout(): Promise<void> {
 .app-aside {
   display: flex;
   flex-direction: column;
-  background: linear-gradient(180deg, var(--ys-ink-900) 0%, var(--ys-ink-700) 100%);
+  /* 中性灰侧栏：比页面底沉一档，与纸白卡片拉开层次 */
+  background: linear-gradient(180deg, #f2f4f8 0%, #ecedf3 100%);
+  border-right: 1px solid var(--ys-line);
 }
 
 .app-brand {
   display: flex;
   flex-direction: column;
-  gap: 2px;
-  padding: 18px 20px 14px;
+  gap: 3px;
+  padding: 18px 20px 12px;
 }
 
 .app-brand__name {
-  font-family: 'Songti SC', SimSun, serif;
-  font-size: 18px;
-  letter-spacing: 2px;
-  color: var(--ys-paper);
+  font-family: var(--ys-font-brand);
+  font-size: 16px;
+  font-weight: 500;
+  letter-spacing: 4px;
+  color: var(--ys-ink);
 }
 
 .app-brand__sub {
-  font-size: 12px;
-  letter-spacing: 1px;
-  color: rgb(250 250 247 / 55%);
+  font-size: 11px;
+  letter-spacing: 0.06em;
+  color: var(--ys-ink-3);
+}
+
+/* 品牌签名：logo 下的渐隐水线（全站唯一装饰元素，页面标题处同款） */
+.app-brand__line {
+  width: 24px;
+  height: 2px;
+  border-radius: 1px;
+  margin-top: 8px;
+  background: linear-gradient(90deg, var(--ys-indigo), rgba(46, 75, 168, 0));
 }
 
 .app-aside__menu {
@@ -143,8 +157,8 @@ async function handleLogout(): Promise<void> {
   align-items: center;
   justify-content: space-between;
   height: 56px;
-  background-color: #fff;
-  border-bottom: 1px solid #e5e7eb;
+  background: linear-gradient(180deg, #ffffff, #fdfdfe);
+  border-bottom: 1px solid var(--ys-line);
 }
 
 .app-header__left {
@@ -173,7 +187,7 @@ async function handleLogout(): Promise<void> {
 }
 
 .app-header__menu-toggle:focus-visible {
-  outline: 2px solid var(--ys-gold-deep);
+  outline: 2px solid var(--ys-indigo);
   outline-offset: 2px;
 }
 
@@ -190,7 +204,10 @@ async function handleLogout(): Promise<void> {
 
 .app-main {
   padding: 20px;
-  background-color: #f5f7fa;
+  /* 雾灰底 + 点阵网格：内容区的秩序与密度 */
+  background-color: var(--ys-mist);
+  background-image: radial-gradient(rgba(28, 35, 51, 0.05) 1px, transparent 1px);
+  background-size: 24px 24px;
 }
 
 @media (max-width: 768px) {
@@ -211,9 +228,9 @@ async function handleLogout(): Promise<void> {
 </style>
 
 <style>
-/* 抽屉内容铺满深色底（非 scoped：目标元素由 el-drawer 渲染在组件根之外） */
+/* 抽屉内容铺满侧栏同款灰（非 scoped：目标元素由 el-drawer 渲染在组件根之外） */
 .app-drawer .el-drawer__body {
   padding: 0;
-  background: linear-gradient(180deg, var(--ys-ink-900) 0%, var(--ys-ink-700) 100%);
+  background: linear-gradient(180deg, #f2f4f8 0%, #ecedf3 100%);
 }
 </style>
diff --git a/frontend/src/views/dashboard/index.vue b/frontend/src/views/dashboard/index.vue
index 835dbbd..07815ca 100644
--- a/frontend/src/views/dashboard/index.vue
+++ b/frontend/src/views/dashboard/index.vue
@@ -1,49 +1,350 @@
 <script setup lang="ts">
-import { useUserStore } from '@/store/user'
-import { formatDateTime } from '@/utils/format'
+import { onMounted, ref } from 'vue'
+import { useRouter } from 'vue-router'
+
+import * as businessRoleApi from '@/api/businessRoles'
+import * as paramsApi from '@/api/params'
+import { handledError } from '@/utils/error'
+
+const router = useRouter()
 
 /**
- * 首页：登录链路验证页。
+ * 首页仪表盘（Bento Grid，2026-10-12 视觉方向）。
  *
- * 顶部栏（用户信息、退出登录）已由 BasicLayout 提供，本页只保留内容区；
- * 用户名等字段的展示是端到端脚本的断言对象，调整时需同步 e2e。
+ * M1 阶段：计提参数与岗位配置已就绪（真实数据）；绩效/回款/待办等业务卡
+ * 展示空态 —— 业务数据管理上线后接入真实统计（图表用 ECharts 渲染）。
+ * 空态文案遵循全局规范：空态是邀请，说明「这里将出现什么、怎么让它出现」。
  */
-const userStore = useUserStore()
+const roleCount = ref<number | null>(null)
+const paramCount = ref<number | null>(null)
+const latestVersion = ref<string | null>(null)
+
+onMounted(() => {
+  // 三项统计各自容错：一张卡失败不影响其余卡片
+  void (async () => {
+    try {
+      const page = await businessRoleApi.listBusinessRoles({ pageNum: 1, pageSize: 1 })
+      roleCount.value = page.total
+    } catch (error) {
+      handledError(error)
+    }
+  })()
+  void (async () => {
+    try {
+      const catalog = await paramsApi.getCatalog()
+      paramCount.value = catalog.length
+    } catch (error) {
+      handledError(error)
+    }
+  })()
+  void (async () => {
+    try {
+      const page = await paramsApi.listBatches({ pageNum: 1, pageSize: 1 })
+      latestVersion.value = page.list[0]?.version_no ?? null
+    } catch (error) {
+      handledError(error)
+    }
+  })()
+})
 </script>
 
 <template>
-  <el-card shadow="never">
-    <template #header>
-      <span>登录状态验证通过</span>
-    </template>
+  <div>
+    <div class="page-head">
+      <h1 class="page-title">仪表盘</h1>
+      <p class="page-desc">系统概览 · 计提参数与岗位配置就绪，业务数据管理上线后接入核算统计</p>
+      <span class="waterline"></span>
+    </div>
 
-    <el-descriptions :column="2" border>
-      <el-descriptions-item label="用户 ID">{{ userStore.userInfo?.id }}</el-descriptions-item>
-      <el-descriptions-item label="用户名">{{ userStore.userInfo?.username }}</el-descriptions-item>
-      <el-descriptions-item label="姓名">
-        {{ userStore.userInfo?.real_name || '—' }}
-      </el-descriptions-item>
-      <el-descriptions-item label="角色">
-        {{ userStore.roles.join('、') || '—' }}
-      </el-descriptions-item>
-      <el-descriptions-item label="上次登录">
-        {{ formatDateTime(userStore.userInfo?.last_login_time) }}
-      </el-descriptions-item>
-    </el-descriptions>
+    <div class="bento">
+      <!-- 绩效总额：业务上线前的空态 -->
+      <div class="bento-card b-2x2">
+        <div class="b-eyebrow">本月绩效总额</div>
+        <div class="b-empty">
+          <div class="b-empty-title">暂无核算数据</div>
+          <div class="b-empty-desc">回款录入并核算后，这里将显示本月绩效总额与趋势</div>
+        </div>
+      </div>
 
-    <el-alert
-      class="dashboard-hint"
-      type="info"
-      :closable="false"
-      show-icon
-      title="这是登录链路的验证页"
-      description="刷新页面可验证会话恢复（守卫会调用 /me）；「系统管理」菜单已接入用户管理、角色管理与日志查询。"
-    />
-  </el-card>
+      <!-- 回款趋势：业务上线前的空态 -->
+      <div class="bento-card b-2x2">
+        <div class="b-eyebrow">近 6 个月回款</div>
+        <div class="b-empty">
+          <div class="b-empty-title">暂无回款数据</div>
+          <div class="b-empty-desc">业务数据管理上线后，此处展示按月回款趋势</div>
+        </div>
+      </div>
+
+      <!-- 待办 -->
+      <div class="bento-card b-2x1">
+        <div class="b-eyebrow">待办</div>
+        <div class="b-empty-mini">业务数据管理上线后，待核算回款会出现在这里</div>
+      </div>
+
+      <!-- 营销人员：人员管理上线后接入 -->
+      <div class="bento-card">
+        <div class="b-eyebrow">营销人员</div>
+        <div class="b-empty-mini">人员管理上线后同步</div>
+      </div>
+
+      <!-- 岗位角色：真实数据 -->
+      <div class="bento-card">
+        <div class="b-eyebrow">岗位角色</div>
+        <div class="b-num">{{ roleCount ?? '—' }}<small>个</small></div>
+        <button class="b-link" type="button" @click="router.push('/system/business-roles')">
+          管理 ›
+        </button>
+      </div>
+
+      <!-- 计提参数：真实数据 -->
+      <div class="bento-card">
+        <div class="b-eyebrow">计提参数</div>
+        <div class="b-num">{{ paramCount ?? '—' }}<small>项</small></div>
+        <button class="b-link" type="button" @click="router.push('/system/params')">
+          维护 ›
+        </button>
+      </div>
+
+      <!-- 常用操作 -->
+      <div class="bento-card b-2x1">
+        <div class="b-eyebrow">常用操作</div>
+        <div class="b-links">
+          <button class="b-op" type="button" @click="router.push('/system/params')">
+            计提参数
+          </button>
+          <button class="b-op" type="button" @click="router.push('/system/business-roles')">
+            岗位角色
+          </button>
+          <button class="b-op" type="button" @click="router.push('/system/logs')">
+            操作日志
+          </button>
+          <span class="b-op b-op-disabled" title="业务数据管理上线后开放">录入回款</span>
+        </div>
+      </div>
+
+      <!-- T+ 同步 -->
+      <div class="bento-card">
+        <div class="b-eyebrow">T+ 同步</div>
+        <div class="b-state">待接入</div>
+        <div class="b-sub">每周一次 · 手动触发</div>
+      </div>
+    </div>
+  </div>
 </template>
 
 <style scoped>
-.dashboard-hint {
-  margin-top: 18px;
+.page-head {
+  margin-bottom: 18px;
+}
+
+.page-title {
+  margin: 0;
+  font-size: 18px;
+  font-weight: 600;
+  letter-spacing: -0.01em;
+  color: var(--ys-ink);
+}
+
+.page-desc {
+  margin: 4px 0 0;
+  font-size: 12px;
+  color: var(--ys-ink-3);
+}
+
+.waterline {
+  display: block;
+  width: 56px;
+  height: 2px;
+  margin-top: 10px;
+  border-radius: 1px;
+  background: linear-gradient(90deg, var(--ys-indigo), rgba(46, 75, 168, 0));
+}
+
+/* Bento Grid：4 列基格，卡片按重要性混排大小 */
+.bento {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  grid-auto-rows: 102px;
+  gap: 14px;
+}
+
+.bento-card {
+  display: flex;
+  flex-direction: column;
+  padding: 17px 20px;
+  overflow: hidden;
+  background: linear-gradient(180deg, #ffffff, #fcfcfe);
+  border: 1px solid var(--ys-line);
+  border-radius: 10px;
+  box-shadow:
+    0 1px 2px rgba(28, 35, 51, 0.04),
+    0 3px 10px rgba(28, 35, 51, 0.03);
+  transition:
+    transform 180ms cubic-bezier(0.25, 0.1, 0.25, 1),
+    box-shadow 180ms cubic-bezier(0.25, 0.1, 0.25, 1);
+}
+
+.bento-card:hover {
+  transform: translateY(-2px);
+  box-shadow:
+    0 1px 2px rgba(28, 35, 51, 0.05),
+    0 6px 18px rgba(28, 35, 51, 0.07);
+}
+
+.b-2x2 {
+  grid-column: span 2;
+  grid-row: span 2;
+}
+
+.b-2x1 {
+  grid-column: span 2;
+}
+
+.b-eyebrow {
+  font-size: 12px;
+  font-weight: 500;
+  letter-spacing: 0.04em;
+  color: var(--ys-ink-2);
+}
+
+.b-num {
+  margin-top: auto;
+  font-size: 24px;
+  font-weight: 600;
+  font-variant-numeric: tabular-nums;
+  line-height: 1.2;
+  letter-spacing: -0.01em;
+  color: var(--ys-ink);
+}
+
+.b-num small {
+  margin-left: 3px;
+  font-size: 12px;
+  font-weight: 400;
+  color: var(--ys-ink-3);
+}
+
+.b-sub {
+  margin-top: 3px;
+  font-size: 11px;
+  color: var(--ys-ink-3);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.b-state {
+  margin-top: auto;
+  font-size: 15px;
+  font-weight: 600;
+  color: var(--ys-ink-2);
+}
+
+.b-empty {
+  display: flex;
+  flex: 1;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+}
+
+.b-empty-title {
+  font-size: 14px;
+  font-weight: 500;
+  color: var(--ys-ink-2);
+}
+
+.b-empty-desc {
+  max-width: 260px;
+  margin-top: 6px;
+  font-size: 12px;
+  color: var(--ys-ink-3);
+  line-height: 1.7;
+}
+
+.b-empty-mini {
+  margin-top: auto;
+  margin-bottom: auto;
+  font-size: 12px;
+  color: var(--ys-ink-3);
+  line-height: 1.7;
+}
+
+.b-links {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  margin-top: auto;
+}
+
+.b-link {
+  padding: 0;
+  margin-top: 6px;
+  font-size: 12px;
+  color: var(--ys-indigo);
+  text-align: left;
+  cursor: pointer;
+  background: none;
+  border: none;
+}
+
+.b-link:hover {
+  color: var(--ys-indigo-deep);
+}
+
+.b-op {
+  height: 30px;
+  padding: 0 13px;
+  font-size: 12px;
+  font-family: inherit;
+  color: var(--ys-ink);
+  cursor: pointer;
+  background: linear-gradient(180deg, #ffffff, #fbfcfe);
+  border: 1px solid var(--ys-line);
+  border-radius: 7px;
+  transition:
+    color 150ms cubic-bezier(0.25, 0.1, 0.25, 1),
+    border-color 150ms cubic-bezier(0.25, 0.1, 0.25, 1);
+}
+
+button.b-op:hover {
+  color: var(--ys-indigo);
+  border-color: rgba(46, 75, 168, 0.45);
+}
+
+.b-op-disabled {
+  color: var(--ys-ink-3);
+  cursor: not-allowed;
+}
+
+@media (max-width: 1024px) {
+  .bento {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+
+@media (max-width: 640px) {
+  .bento {
+    grid-template-columns: 1fr;
+    grid-auto-rows: auto;
+  }
+
+  .bento-card {
+    min-height: 90px;
+  }
+
+  .b-2x2,
+  .b-2x1 {
+    grid-column: span 1;
+    grid-row: span 1;
+    min-height: 130px;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .bento-card {
+    transition: none;
+  }
 }
 </style>
diff --git a/frontend/src/views/login/index.vue b/frontend/src/views/login/index.vue
index 31e6e7b..244dc6a 100644
--- a/frontend/src/views/login/index.vue
+++ b/frontend/src/views/login/index.vue
@@ -77,53 +77,29 @@ onMounted(refreshCaptcha)
 
 <template>
   <div class="login">
-    <!-- 品牌面板：以「水」为意象 —— 公司名衍水，业务是流水之账 -->
-    <section class="brand">
-      <!-- 水纹层理：越往下越密，如潜向深处。纯装饰，对读屏隐藏 -->
-      <svg class="brand-flow" viewBox="0 0 600 1000" preserveAspectRatio="xMidYMid slice" aria-hidden="true">
-        <path class="brand-flow__line" style="--i: 0" d="M-40,150 C 150,95 260,205 420,155 S 620,95 660,120" />
-        <path class="brand-flow__line" style="--i: 1" d="M-40,265 C 170,200 300,320 460,255 S 630,190 660,215" />
-        <path class="brand-flow__line" style="--i: 2" d="M-40,372 C 160,318 320,420 470,360 S 640,300 660,320" />
-        <path class="brand-flow__line" style="--i: 3" d="M-40,470 C 180,428 310,510 480,462 S 645,410 660,425" />
-        <path class="brand-flow__line" style="--i: 4" d="M-40,562 C 150,532 330,596 470,560 S 640,520 660,530" />
-        <path class="brand-flow__line" style="--i: 5" d="M-40,650 C 190,626 300,678 490,648 S 650,618 660,624" />
-        <path class="brand-flow__line" style="--i: 6" d="M-40,732 C 160,714 320,752 460,730 S 640,708 660,712" />
-        <path class="brand-flow__line" style="--i: 7" d="M-40,810 C 175,798 305,826 485,808 S 645,792 660,795" />
-        <path class="brand-flow__line" style="--i: 8" d="M-40,882 C 155,873 330,894 470,880 S 645,868 660,870" />
-        <path class="brand-flow__line" style="--i: 9" d="M-40,946 C 185,939 300,955 490,944 S 650,934 660,935" />
-      </svg>
+    <!-- 背景装饰：右上涟漪同心圆（「衍水」品牌意象）；顶部天光由 .login::before 承担 -->
+    <div class="login-ripple" aria-hidden="true">
+      <i></i><i></i><i></i><i></i>
+    </div>
 
-      <!-- 品牌内容整体居中成块。此前用 space-between 把品牌与标语顶到两端，
-           中间空出大片，两处都成了孤岛；聚成一块才有构图 -->
-      <div class="brand-inner">
-        <div class="brand-block">
-          <h1 class="brand-name">衍水集团</h1>
-          <hr class="brand-rule" />
-          <p class="brand-system">营销人员工资管理系统</p>
-
-          <!-- 断行位置显式控制：中文可在任意字间断行，交给浏览器自动换行
-               会把「楚」这样的单字挤到末行 -->
-          <p class="brand-hero">
-            <span>每一笔回款，</span>
-            <span>都算得清楚</span>
-          </p>
-          <p class="brand-stages">回款 · 计提 · 核算 · 发放</p>
+    <div class="login-wrap">
+      <div class="login-card">
+        <div class="card-brand">
+          <div class="card-brand__name">衍水集团</div>
+          <p class="card-brand__slogan">把每一笔回款，算成一份踏实。</p>
+          <span class="waterline"></span>
         </div>
-      </div>
-    </section>
 
-    <!-- 表单面板 -->
-    <section class="panel">
-      <div class="panel-inner">
-        <h2 class="panel-title">登录</h2>
-        <p class="panel-hint">请使用管理员分配的账号</p>
+        <div class="card-head">
+          <h2 class="card-title">欢迎回来</h2>
+          <p class="card-hint">请输入账号密码进入系统</p>
+        </div>
 
         <el-form
           ref="formRef"
           :model="form"
           :rules="rules"
           label-position="top"
-          size="large"
           @keyup.enter="handleSubmit"
         >
           <el-form-item label="用户名" prop="username">
@@ -173,175 +149,149 @@ onMounted(refreshCaptcha)
             </el-button>
           </el-form-item>
         </el-form>
-
-        <p class="panel-foot">衍水集团 · 内部系统</p>
       </div>
-    </section>
+
+      <p class="login-foot">© 衍水集团 · 内部系统</p>
+    </div>
   </div>
 </template>
 
 <style scoped>
-/*
- * 配色：品牌 token 已提升为全局（见 assets/styles/index.css，布局框架与
- * 系统管理页面共用），此处只做局部别名，用法与取值均与原先一致。
- */
+/* 视觉体系（2026-10-12 确认）：企业级扁平 · 轻质感 · 品牌色点缀 · 微动效 */
 .login {
-  --ink-900: var(--ys-ink-900);
-  --ink-800: var(--ys-ink-800);
-  --ink-700: var(--ys-ink-700);
-  --ink-600: var(--ys-ink-600);
-  --gold-bright: var(--ys-gold-bright);
-  --gold-deep: var(--ys-gold-deep);
-  --paper: var(--ys-paper);
-  --text: var(--ys-text);
-  --muted: var(--ys-muted);
-
-  display: flex;
-  min-height: 100vh;
-}
-
-/* ============ 品牌面板 ============ */
-
-.brand {
   position: relative;
   display: flex;
-  flex: 1 1 56%;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  min-height: 100vh;
+  padding: 40px 24px;
   overflow: hidden;
-  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 62%, #04141b 100%);
+  background-color: #f2f4f8;
+  /* 点阵网格：秩序与密度 */
+  background-image: radial-gradient(rgba(28, 35, 51, 0.07) 1px, transparent 1px);
+  background-size: 24px 24px;
 }
 
-/* 水下的光：给居中的内容一个落点，否则深色面板会显得空 */
-.brand::before {
-  position: absolute;
-  inset: 0;
+/* 顶部天光：靛蓝微光从上方洒下，给页面空气感 */
+.login::before {
   content: '';
-  background: radial-gradient(58% 46% at 32% 46%, rgb(32 116 146 / 26%), transparent 72%);
+  position: absolute;
+  top: -180px;
+  left: 50%;
+  width: 900px;
+  height: 480px;
+  transform: translateX(-50%);
+  pointer-events: none;
+  background: radial-gradient(closest-side, rgba(46, 75, 168, 0.09), rgba(46, 75, 168, 0));
+}
+
+/* 右上涟漪：同心圆水波，部分出画 */
+.login-ripple {
+  position: absolute;
+  top: -190px;
+  right: -150px;
+  width: 560px;
+  height: 560px;
   pointer-events: none;
 }
 
-.brand-flow {
+.login-ripple i {
   position: absolute;
   inset: 0;
-  width: 100%;
-  height: 100%;
+  border-radius: 50%;
+  border: 1px solid rgba(46, 75, 168, 0.1);
 }
 
-.brand-flow__line {
-  fill: none;
-  stroke: var(--ink-600);
-  stroke-width: 1;
-  opacity: 0.55;
-  /* 逐条画出：一个统一的入场动作，而非散落特效 */
-  stroke-dasharray: 1200;
-  stroke-dashoffset: 1200;
-  animation: flow-draw 2.4s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
-  animation-delay: calc(var(--i) * 0.13s);
+.login-ripple i:nth-child(2) {
+  inset: 70px;
+  border-color: rgba(46, 75, 168, 0.075);
 }
 
-@keyframes flow-draw {
-  to {
-    stroke-dashoffset: 0;
-  }
+.login-ripple i:nth-child(3) {
+  inset: 140px;
+  border-color: rgba(46, 75, 168, 0.055);
 }
 
-.brand-inner {
+.login-ripple i:nth-child(4) {
+  inset: 210px;
+  border: none;
+  background: radial-gradient(circle, rgba(46, 75, 168, 0.05), rgba(46, 75, 168, 0.015));
+}
+
+.login-wrap {
   position: relative;
-  z-index: 1;
   display: flex;
+  flex-direction: column;
   align-items: center;
-  width: 100%;
-  padding: 56px clamp(40px, 6vw, 104px);
 }
 
-/* 内容成块并限宽：超宽屏下文字块不会被拉散 */
-.brand-block {
-  max-width: 30rem;
+/* 登录卡：纸白微渐变 + 半透明描边 + 分层阴影 + 入场上浮 */
+.login-card {
+  width: 400px;
+  max-width: 100%;
+  padding: 30px 36px 32px;
+  overflow: hidden;
+  animation: card-rise 320ms cubic-bezier(0.25, 0.1, 0.25, 1) backwards;
+  background: linear-gradient(180deg, #ffffff, #fcfcfe);
+  border: 1px solid rgba(28, 35, 51, 0.09);
+  border-radius: 14px;
+  box-shadow:
+    0 2px 4px rgba(28, 35, 51, 0.04),
+    0 16px 40px rgba(28, 35, 51, 0.1);
 }
 
-.brand-name {
-  margin: 0;
-  font-family: 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
-  font-size: clamp(36px, 3.6vw, 54px);
-  font-weight: 600;
-  line-height: 1.15;
-  letter-spacing: 0.2em;
-  color: #f2f6f7;
-}
-
-.brand-rule {
-  width: 52px;
-  height: 2px;
-  margin: 24px 0 18px;
-  background-color: var(--gold-bright);
-  border: 0;
-}
-
-.brand-system {
-  margin: 0;
-  font-size: clamp(13px, 1.1vw, 16px);
-  font-weight: 300;
-  letter-spacing: 0.28em;
-  color: #9db6c0;
-}
-
-.brand-hero {
-  margin: 58px 0 0;
-  font-size: clamp(16px, 1.4vw, 21px);
-  font-weight: 400;
-  line-height: 1.8;
-  letter-spacing: 0.06em;
-  color: #d9e5ea;
-}
-
-.brand-hero span {
-  display: block;
-}
-
-/* 三个业务环节：用间隔点连成一行，比带框的标签轻得多，
-   也不会被误读成可点击的按钮 */
-.brand-stages {
-  margin: 18px 0 0;
-  font-size: 12px;
-  letter-spacing: 0.24em;
-  color: #6f8b97;
-}
-
-/* ============ 表单面板 ============ */
-
-.panel {
-  display: flex;
-  flex: 1 1 44%;
-  align-items: center;
-  justify-content: center;
-  padding: 48px clamp(28px, 5vw, 80px);
-  background-color: var(--paper);
-}
-
-.panel-inner {
-  width: 100%;
-  max-width: 356px;
-  animation: panel-rise 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.35s both;
-}
-
-@keyframes panel-rise {
+@keyframes card-rise {
   from {
     opacity: 0;
-    transform: translateY(14px);
+    transform: translateY(8px);
   }
 }
 
-.panel-title {
-  margin: 0 0 6px;
-  font-size: 25px;
-  font-weight: 600;
-  letter-spacing: 0.16em;
-  color: var(--text);
+.card-brand {
+  text-align: center;
 }
 
-.panel-hint {
-  margin: 0 0 30px;
-  font-size: 13px;
-  color: var(--muted);
+.card-brand__name {
+  font-family: var(--ys-font-brand);
+  font-size: 17px;
+  font-weight: 500;
+  letter-spacing: 0.34em;
+  color: var(--ys-ink);
+}
+
+.card-brand__slogan {
+  margin-top: 8px;
+  font-size: 12.5px;
+  letter-spacing: 0.02em;
+  color: var(--ys-ink-3);
+}
+
+/* 签名元素：渐隐靛蓝水线 */
+.waterline {
+  display: block;
+  width: 40px;
+  height: 2px;
+  margin: 14px auto 0;
+  border-radius: 1px;
+  background: linear-gradient(90deg, var(--ys-indigo), rgba(46, 75, 168, 0));
+}
+
+.card-head {
+  margin-top: 26px;
+}
+
+.card-title {
+  margin: 0;
+  font-size: 15px;
+  font-weight: 600;
+  color: var(--ys-ink);
+}
+
+.card-hint {
+  margin: 4px 0 0;
+  font-size: 12px;
+  color: var(--ys-ink-3);
 }
 
 .captcha {
@@ -370,14 +320,15 @@ onMounted(refreshCaptcha)
   padding: 0;
   overflow: hidden;
   cursor: pointer;
-  background-color: #fff;
-  border: 1px solid #dcdfe6;
-  border-radius: 4px;
-  transition: border-color 0.2s;
+  background: linear-gradient(180deg, #f7f8fb, #f1f3f8);
+  border: 1px solid var(--ys-line);
+  border-radius: 7px;
+  box-shadow: inset 0 1px 2px rgba(28, 35, 51, 0.04);
+  transition: border-color 150ms var(--ys-ease, ease);
 }
 
 .captcha__image:hover {
-  border-color: var(--gold-deep);
+  border-color: var(--ys-indigo);
 }
 
 .captcha__image img {
@@ -389,89 +340,54 @@ onMounted(refreshCaptcha)
 
 .captcha__placeholder {
   font-size: 12px;
-  color: var(--muted);
+  color: var(--ys-ink-3);
 }
 
 .form-actions :deep(.el-form-item__content) {
   margin-top: 4px;
 }
 
-/* 覆盖 Element Plus 的按钮变量而非直接写 background-color ——
-   后者与 .el-button--primary 同权重，会受样式注入顺序影响而不稳定 */
 .submit {
   width: 100%;
   letter-spacing: 0.4em;
-  --el-button-bg-color: var(--gold-deep);
-  --el-button-border-color: var(--gold-deep);
-  --el-button-hover-bg-color: #a3762a;
-  --el-button-hover-border-color: #a3762a;
-  --el-button-active-bg-color: #7d5719;
-  --el-button-active-border-color: #7d5719;
 }
 
-.panel-foot {
-  margin: 32px 0 0;
-  font-size: 12px;
-  text-align: center;
-  letter-spacing: 0.1em;
-  color: #9aa8af;
+.login-foot {
+  margin: 16px 0 0;
+  font-size: 11px;
+  letter-spacing: 0.08em;
+  color: var(--ys-ink-3);
 }
 
-/* 输入框聚焦态也落在同一套配色上 */
-.panel :deep(.el-input__wrapper) {
-  --el-input-focus-border-color: var(--gold-deep);
+/* 输入聚焦落在体系主色上（Element Plus 主色已随全局 token 换为靛蓝） */
+.login :deep(.el-input__wrapper) {
+  box-shadow: 0 0 0 1px rgba(28, 35, 51, 0.13) inset;
 }
 
-/* ============ 响应式 ============ */
+.login :deep(.el-input__wrapper.is-focus) {
+  box-shadow:
+    0 0 0 1px var(--ys-indigo) inset,
+    0 0 0 3px rgba(46, 75, 168, 0.13);
+}
 
-@media (max-width: 900px) {
+@media (max-width: 640px) {
   .login {
-    flex-direction: column;
+    padding: 24px 16px;
   }
 
-  .brand {
-    flex: 0 0 auto;
-    padding: 36px 26px 32px;
+  .login-card {
+    padding: 26px 24px 28px;
   }
 
-  .brand-inner {
-    padding: 0;
-  }
-
-  .brand-flow {
-    opacity: 0.5;
-  }
-
-  .brand-name {
-    font-size: 30px;
-    letter-spacing: 0.16em;
-  }
-
-  .brand-rule {
-    margin: 16px 0 12px;
-  }
-
-  /* 窄屏上只留品牌识别，标语与环节行让位给表单 */
-  .brand-hero,
-  .brand-stages {
-    display: none;
-  }
-
-  .panel {
-    flex: 1;
-    padding: 38px 26px 46px;
+  /* 窄屏上涟漪出画更多，避免挤压卡片 */
+  .login-ripple {
+    top: -260px;
+    right: -240px;
   }
 }
 
-/* 尊重系统的「减弱动效」偏好：保留终态，去掉过渡 */
 @media (prefers-reduced-motion: reduce) {
-  .brand-flow__line {
-    stroke-dashoffset: 0;
-    animation: none;
-  }
-
-  .panel-inner {
-    opacity: 1;
+  .login-card {
     animation: none;
   }
 }