/**
 * 移动端统一导航栏样式
 * 适用于所有移动端页面
 */

/* ========================================
   顶部导航栏
======================================== */
.mobile-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border, #e5e7eb);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
  padding-top: env(safe-area-inset-top, 0);
}

.mobile-navbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.mobile-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary, #2563eb);
  text-decoration: none;
}

.mobile-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--text-primary, #1f2937);
  text-decoration: none;
  flex-shrink: 0;
}

.mobile-back-btn i {
  font-size: 16px;
}

.mobile-page-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary, #1f2937);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-menu-btn {
  width: 32px;
  height: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 20px;
  height: 2px;
  background: var(--text-primary, #1f2937);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* ========================================
   菜单遮罩层
======================================== */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ========================================
   侧边菜单面板
======================================== */
.mobile-menu-panel {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: white;
  z-index: 1002;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  padding-top: env(safe-area-inset-top, 0);
}

.mobile-menu-panel.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #f0f0f0;
}

.mobile-menu-header .menu-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary, #2563eb);
}

.mobile-menu-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary, #6b7280);
}

/* ========================================
   菜单列表
======================================== */
.mobile-menu-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.mobile-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  color: var(--text-primary, #1f2937);
  text-decoration: none;
  transition: background 0.2s;
}

.mobile-menu-item:active {
  background: #f5f5f5;
}

.mobile-menu-item.active {
  color: var(--primary, #2563eb);
  background: var(--primary-light, #eff6ff);
}

.mobile-menu-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary, #6b7280);
}

.mobile-menu-item.active i {
  color: var(--primary, #2563eb);
}

.mobile-menu-item span {
  font-size: 15px;
}

.mobile-menu-divider {
  height: 1px;
  background: #f0f0f0;
  margin: 8px 20px;
}

/* ========================================
   菜单底部
======================================== */
.mobile-menu-footer {
  padding: 20px;
  padding-bottom: calc(20px + env(safe-area-inset-bottom, 0));
  border-top: 1px solid #f0f0f0;
  text-align: center;
}

.mobile-menu-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--primary, #2563eb);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
}

.mobile-menu-contact i {
  font-size: 18px;
}

/* ========================================
   底部导航栏
======================================== */
.mobile-tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--border, #e5e7eb);
  padding-bottom: env(safe-area-inset-bottom, 0);
  z-index: 999;
}

.tabbar-content {
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 56px;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  text-decoration: none;
  color: var(--text-secondary, #6b7280);
  transition: color 0.2s;
}

.tab-item.active {
  color: var(--primary, #2563eb);
}

.tab-icon {
  font-size: 18px;
  margin-bottom: 2px;
}

.tab-label {
  font-size: 11px;
}

/* 当有底部导航时，body需要额外padding */
body.has-tabbar {
  padding-bottom: calc(56px + env(safe-area-inset-bottom, 0));
}