<template>
  <div id="app">
    <el-container>
      <el-header>
        <nav class="navbar">
          <div class="nav-brand">
            <el-icon class="brand-icon"><Monitor /></el-icon>
            <span class="brand-text">某方向风险监测预警系统</span>
          </div>
          <div class="nav-menu">
            <el-dropdown @command="handleHomeCommand" class="home-dropdown">
              <div class="nav-link dropdown-trigger">
                <el-icon><House /></el-icon>
                <span>首页</span>
                <el-icon class="dropdown-arrow"><ArrowDown /></el-icon>
              </div>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item command="/">智库首页</el-dropdown-item>
                  <el-dropdown-item command="/billHome">法案首页</el-dropdown-item>
                  <el-dropdown-item command="/exportControl">出口管制</el-dropdown-item>
                  <el-dropdown-item command="/decree">政令</el-dropdown-item>
                  <el-dropdown-item command="/marketAccessRestrictions">市场准入限制</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
            <div class="nav-link">
              <el-icon><User /></el-icon>
              <span>国家</span>
            </div>
            <div class="nav-link">
              <el-icon><Location /></el-icon>
              <span>领域</span>
            </div>
            <div class="nav-link">
              <el-icon><Document /></el-icon>
              <span>要素</span>
            </div>
            <div class="nav-link">
              <el-icon><Bell /></el-icon>
              <span>事件</span>
            </div>
          </div>
          <div class="user-info">
            <el-icon><Message /></el-icon>
            <el-icon><User /></el-icon>
            <span>管理员</span>
          </div>
        </nav>
      </el-header>
      <el-main class="main-container">
        <router-view />
      </el-main>
    </el-container>
  </div>
</template>

<script setup>
import { Monitor, House, User, Location, Document, Bell, Message, ArrowDown } from '@element-plus/icons-vue'
import { useRouter } from 'vue-router'

const router = useRouter()

const handleHomeCommand = (command) => {
  router.push(command)
}
</script>

<style>
/* 全局样式重置 */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

body {
  font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
}
</style>

<style scoped>
#app {
  font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
  width: 100%;
  min-height: 100vh;
}

/* 确保Element Plus容器组件占满宽度 */
.el-container {
  width: 100%;
  min-height: 100vh;
}

.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 24px;
  background: white;
  color: #333;
  height: 100%;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: relative;
}

.main-container {
  /* 移除宽度限制，让子页面自己控制布局 */
  width: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  position: absolute;
  left: 24px;
}

.brand-icon {
  font-size: 24px;
  color: #1e3a8a;
}

.brand-text {
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #333;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.3s;
  font-size: 14px;
  cursor: pointer;
}

.nav-link:hover,
.nav-link.router-link-active {
  background-color: #1459BB;
  color: #fff;
}

.home-dropdown {
  display: inline-block;
}

.dropdown-trigger {
  cursor: pointer;
}

.dropdown-arrow {
  font-size: 12px;
  margin-left: 4px;
  transition: transform 0.3s;
}

.home-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #f3f4f6;
  border-radius: 6px;
  color: #333;
  position: absolute;
  right: 24px;
}

.el-header {
  padding: 0;
  height: 60px;
}

.el-main {
  padding: 0;
  height: calc(100vh - 60px);
  background-color: rgba(246, 251, 255, 1);
  overflow-y: auto;
}
</style>