(function () {
  if (document.getElementById('uni-nav-styles')) return;
  var style = document.createElement('style');
  style.id = 'uni-nav-styles';
  style.textContent = '\
.uni-nav {\
  position: fixed; top: 0; left: 0; right: 0; height: 60px;\
  z-index: 10000;\
  display: flex; align-items: center;\
  padding: 0 16px;\
  background: linear-gradient(135deg, #2563eb, #1d4ed8);\
  color: #fff;\
  box-shadow: 0 2px 12px rgba(37,99,235,0.25);\
}\
.uni-nav-inner {\
  display: flex; align-items: center;\
  width: 100%; max-width: 1400px; margin: 0 auto;\
  gap: 8px;\
}\
.uni-nav-brand {\
  font-size: 18px; font-weight: 700;\
  white-space: nowrap;\
  margin-right: 8px;\
  letter-spacing: -0.3px;\
}\
.uni-nav-items {\
  display: flex; align-items: center; gap: 2px;\
  flex: 1; overflow: hidden;\
}\
.uni-nav-item {\
  display: inline-flex; align-items: center; gap: 4px;\
  padding: 6px 12px;\
  border: none; background: transparent;\
  color: rgba(255,255,255,0.8);\
  font-size: 13px;\
  border-radius: 8px;\
  cursor: pointer;\
  white-space: nowrap;\
  transition: all 0.2s;\
}\
.uni-nav-item:hover { background: rgba(255,255,255,0.12); color: #fff; }\
.uni-nav-item.active {\
  background: rgba(255,255,255,0.18); color: #fff; font-weight: 600;\
}\
.uni-nav-right {\
  display: flex; align-items: center; gap: 8px;\
  flex-shrink: 0;\
}\
.uni-nav-avatar {\
  width: 30px; height: 30px;\
  border-radius: 50%;\
  background: rgba(255,255,255,0.2);\
  display: flex; align-items: center; justify-content: center;\
  font-size: 13px; font-weight: 600;\
}\
.uni-nav-username { font-size: 13px; color: rgba(255,255,255,0.9); }\
.uni-nav-badge {\
  font-size: 10px;\
  background: rgba(255,255,255,0.15);\
  padding: 1px 8px; border-radius: 10px;\
  margin-left: 4px;\
}\
.uni-nav-logout {\
  background: rgba(255,255,255,0.1);\
  border: 1px solid rgba(255,255,255,0.15);\
  color: rgba(255,255,255,0.9);\
  padding: 4px 12px; border-radius: 6px;\
  cursor: pointer; font-size: 12px;\
  transition: all 0.2s;\
}\
.uni-nav-logout:hover { background: rgba(255,255,255,0.2); }\
.uni-nav-hamburger {\
  display: none;\
  background: rgba(255,255,255,0.1);\
  border: none; color: #fff;\
  width: 36px; height: 36px;\
  border-radius: 8px;\
  cursor: pointer; font-size: 20px;\
  align-items: center; justify-content: center;\
  transition: all 0.2s;\
}\
.uni-nav-hamburger:hover { background: rgba(255,255,255,0.18); }\
.uni-nav-dropdown {\
  display: none;\
  position: fixed; top: 60px; left: 0; right: 0;\
  background: #fff;\
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);\
  z-index: 9999;\
  padding: 8px;\
  max-height: calc(100vh - 60px);\
  overflow-y: auto;\
  animation: uniNavSlideDown 0.2s ease-out;\
}\
.uni-nav-dropdown.open { display: block; }\
.uni-nav-dropdown-item {\
  display: flex; align-items: center; gap: 8px;\
  width: 100%;\
  padding: 12px 16px;\
  border: none; background: transparent;\
  color: #303133; font-size: 14px;\
  border-radius: 8px;\
  cursor: pointer;\
  transition: all 0.15s;\
}\
.uni-nav-dropdown-item:hover { background: #f0f4ff; color: #2563eb; }\
.uni-nav-dropdown-item.active { background: #eef2ff; color: #2563eb; font-weight: 600; }\
.uni-nav-dropdown-divider {\
  height: 1px; background: #f0f0f0; margin: 4px 0;\
}\
@media (max-width: 768px) {\
  .uni-nav-items { display: none; }\
  .uni-nav-username { display: none; }\
  .uni-nav-hamburger { display: inline-flex; }\
}\
@keyframes uniNavSlideDown {\
  from { opacity: 0; transform: translateY(-8px); }\
  to { opacity: 1; transform: translateY(0); }\
}\
  ';
  document.head.appendChild(style);

  function getCurrentPage() {
    var path = window.location.pathname;
    if (path === '/' || path === '/index.html') return 'dashboard';
    var m = path.match(/\/(\w+)\.html/);
    return m ? m[1] : 'dashboard';
  }

  function navItems(isAdmin) {
    var items = [
      { key: 'dashboard', label: '仪表盘', page: '/' },
      { key: 'topics', label: '选题', page: 'topics.html' },
      { key: 'metrics', label: '数据', page: 'metrics.html' },
      { key: 'calendar', label: '日历', page: 'calendar.html' },
      { key: 'assets', label: '素材', page: 'assets.html' },
      { key: 'tasks', label: '任务', page: 'tasks.html' },
      
    ];
    if (isAdmin) {
      items.push({ key: 'admin', label: '系统', page: 'admin.html', admin: true });
    }
    return items;
  }

  var UniNav = {
    name: 'UniNav',
    props: {
      title: { type: String, default: '' },
      username: { type: String, default: '' },
      isAdmin: { type: Boolean, default: false },
      currentPage: { type: String, default: null },
      onNavigate: { type: Function, default: null },
    },
    emits: ['logout'],
    data: function () {
      return { dropdownOpen: false };
    },
    computed: {
      items: function () {
        return navItems(this.isAdmin);
      },
      page: function () {
        return this.currentPage || getCurrentPage();
      },
      showTitle: function () {
        return this.title || '宇之然';
      },
    },
    methods: {
      navigate: function (page) {
        this.dropdownOpen = false;
        if (this.onNavigate) { this.onNavigate(page); return; }
        window.location.href = page === '/' ? '/' : '/' + page;
      },
      logout: function () {
        this.$emit('logout');
      },
      toggleDropdown: function () {
        this.dropdownOpen = !this.dropdownOpen;
      },
      closeDropdown: function (e) {
        if (this.dropdownOpen && !this.$el.contains(e.target)) {
          this.dropdownOpen = false;
        }
      },
    },
    mounted: function () {
      document.addEventListener('click', this.closeDropdown);
    },
    beforeUnmount: function () {
      document.removeEventListener('click', this.closeDropdown);
    },
    template: '\
<nav class="uni-nav">\
  <div class="uni-nav-inner">\
    <div class="uni-nav-brand">{{ showTitle }}</div>\
    <div class="uni-nav-items">\
      <button v-for="item in items" :key="item.key"\
        :class="[\'uni-nav-item\', { active: page === item.key }]"\
        @click="navigate(item.page)">{{ item.label }}</button>\
    </div>\
    <div class="uni-nav-right">\
      <button class="uni-nav-hamburger" @click.stop="toggleDropdown">\
        {{ dropdownOpen ? "✕" : "☰" }}\
      </button>\
      <div class="uni-nav-avatar">{{ username ? username.charAt(0).toUpperCase() : "?" }}</div>\
      <span v-if="username" class="uni-nav-username">{{ username }}</span>\
      <span v-if="isAdmin" class="uni-nav-badge">管理员</span>\
      <button class="uni-nav-logout" @click="logout">退出</button>\
    </div>\
  </div>\
  <div :class="[\'uni-nav-dropdown\', { open: dropdownOpen }]" @click.stop>\
    <button v-for="item in items" :key="item.key"\
      :class="[\'uni-nav-dropdown-item\', { active: page === item.key }]"\
      @click="navigate(item.page)">\
      {{ item.label }}\
    </button>\
  </div>\
</nav>',
  };

  window.UniNav = UniNav;

  window.installUniNav = function (app) {
    app.component('uni-nav', UniNav);
    return app;
  };
})();