.navbar {
    background-color: var(--color-header-bg);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 60px;
    box-shadow: 0 1px 3px rgba(31, 35, 40, 0.12);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    padding: 0 24px;
    display: flex;
    align-items: center;
}

/* 品牌标识样式 */
.navbar-brand {
    display: flex;
    align-items: center;
    color: var(--color-header-text);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    padding: 0 5px;
    height: 100%;
    white-space: nowrap;
}

.navbar-logo {
    color: var(--color-header-text);
}

.navbar-brand:hover {
    opacity: 0.9;
}

/* 主容器样式 */
.navbar-container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    gap: 16px;
}

/* 导航链接样式 */
.nav-links {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 8px;
}

.nav-links a {
    color: var(--color-header-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 0 12px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    height: 36px;
    display: flex;
    align-items: center;
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    opacity: 1;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 12px;
    right: 12px;
    height: 2px;
    background-color: var(--color-header-text);
}

/* 右侧功能区样式 */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 100%;
}

/* 国家选择器样式 */
.country-selector {
    position: relative;
    display: flex;
    align-items: center;
    height: 36px;
    min-width: 80px;
}

#countrySelect {
    appearance: none;
    background: transparent;
    border: 1px solid var(--color-header-border);
    border-radius: 6px;
    color: var(--color-header-text);
    padding: 0 32px 0 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: auto;
    height: 36px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#countrySelect:hover {
    border-color: var(--color-header-border-hover);
}

#countrySelect:focus {
    outline: none;
    border-color: var(--color-header-border-focus);
    box-shadow: 0 0 0 2px var(--color-header-border-focus-shadow);
}

/* 语言选择器样式 */
.language-selector {
    position: relative;
}

#languageSelect,
#languageSelectMobile {
    appearance: none;
    background: transparent;
    border: 1px solid var(--color-header-border);
    border-radius: 6px;
    color: var(--color-header-text);
    padding: 5px 28px 5px 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 80px;
}

#languageSelect:hover,
#languageSelectMobile:hover {
    border-color: var(--color-header-border-hover);
}

#languageSelect:focus,
#languageSelectMobile:focus {
    outline: none;
    border-color: var(--color-header-border-focus);
    box-shadow: 0 0 0 2px var(--color-header-border-focus-shadow);
}

.country-selector::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    pointer-events: none;
    opacity: 0.7;
}

/* 认证链接样式 */
.auth-links {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 100%;
    margin-left: 16px;
    margin-right: 16px;
}

.auth-links a {
    color: var(--color-header-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 0 16px;
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
    height: 36px;
    display: flex;
    align-items: center;
}

.auth-links .btn-primary {
    background-color: var(--color-header-button-bg);
    color: var(--color-header-button-text);
    border: none;
}

.auth-links .btn-primary:hover {
    background-color: var(--color-header-button-bg-hover);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background-color: var(--color-header-text);
    margin: 4px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background-color: var(--color-header-bg);
    padding: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-open .mobile-menu {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-selectors {
    display: flex;
    gap: 12px;
    margin: 16px 0;
}

/* 动画效果 */
.navbar-scrolled {
    background-color: var(--color-header-bg-scrolled);
    box-shadow: 0 1px 3px rgba(31, 35, 40, 0.12);
}