/* 基础样式 */
.header-component {
  --primary-color: #1890FF;
  --secondary-color: #722ED1;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #FFFFFF;
  --border-color: #EEE;
  --shadow-color: rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
  font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

/* 头部容器 */
.site-header {
  background-color: var(--bg-color);
  box-shadow: 0 2px 10px var(--shadow-color);
  position: relative;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 90px;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo样式 */
.logo-container {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 10px;
  transition: var(--transition);
}

.logo-link:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 160px;
  height: 80px;
  margin-bottom: 10px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-color);
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.logo-image {
  height: 44px;
  width: auto;
  object-fit: contain;
}

/* 主导航 */
.main-nav {
  flex: 1;
  margin: 0 30px;
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-item {
  margin: 0 15px;
  display: flex;
  align-items: center;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 8px 0;
  position: relative;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  transition: var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

/* 用户操作区 */
.user-actions {
  display: flex;
  align-items: center;
}

/* 语言切换器 */
.language-switcher {
  display: flex;
  align-items: center;
  margin-right: 20px;
}

.lang-select {
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background-color: #f5f5f5;
  color: var(--text-color);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 35px;
  min-width: 120px;
}

.lang-select:hover {
  background-color: rgba(24, 144, 255, 0.1);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.lang-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.search-container {
  position: relative;
  margin-right: 20px;
}

.search-input {
  width: 180px;
  padding: 8px 15px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 14px;
  transition: var(--transition);
  outline: none;
}

.search-input:focus {
  border-color: var(--primary-color);
  width: 220px;
}

.search-button {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.search-button svg {
  width: 16px;
  height: 16px;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.btn-login {
  color: var(--text-color);
  margin-right: 10px;
}

.btn-login:hover {
  color: var(--primary-color);
}

.btn-primary {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
}

.btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
}

/* 用户菜单 */
.user-menu {
  display: flex;
  align-items: center;
  position: relative;
  margin-left: 20px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: var(--transition);
}

.user-avatar:hover {
  transform: scale(1.05);
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--bg-color);
  border-radius: 6px;
  box-shadow: 0 4px 12px var(--shadow-color);
  padding: 10px 0;
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 10;
}

.user-menu:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 8px 16px;
  color: var(--text-color);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.dropdown-item:hover {
  background-color: #F7F7F7;
  color: var(--primary-color);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
  display: none;
  width: 30px;
  height: 24px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-menu-toggle span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: var(--text-color);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu-toggle span:nth-child(1) {
  top: 0;
}

.mobile-menu-toggle span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.mobile-menu-toggle span:nth-child(3) {
  bottom: 0;
}

/* 响应式设计 */
@media (max-width: 992px) {
  .main-nav {
    margin: 0 15px;
  }

  .nav-item {
    margin: 0 10px;
  }

  .search-input {
    width: 150px;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 15px;
  }

  .main-nav,
  .auth-buttons {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .logo-icon {
    width: 150px;
    height: 60px;
  }

  .logo-text {
    font-size: 20px;
  }

  .language-switcher {
    margin-right: 10px;
  }

  .lang-select {
    padding: 5px 10px;
    font-size: 12px;
    min-width: 100px;
    padding-right: 30px;
  }

  .search-container {
    margin-right: 15px;
  }

  .search-input {
    width: 120px;
  }

  .user-menu {
    margin-left: 15px;
  }
}

/* 隐藏类 */
.hidden {
  display: none;
}