/* 导航栏基本样式 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: rgba(12, 26, 42, 0.9);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color 0.3s;
}

.header .navbar-logo-a {
    text-decoration: none;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 60px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 24px;
    background: linear-gradient(to right, #00c8ff, #ffffff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-menu .navbar-a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-menu .navbar-a:hover {
    color: #00c8ff;
}

.nav-menu .navbar-a.active {
    color: #00c8ff;
    font-weight: bold;
}

.login-btn {
    background-color: #00c8ff;
    color: #0c1a2a;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
}

/* 移动端菜单 */
.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #ffffff; /* 确保图标颜色可见 */
    z-index: 1001; /* 确保在移动菜单之上 */
}

.menu-toggle i {
    pointer-events: none; /* 防止点击图标而不是容器 */
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: #0c1a2a;
    padding: 20px;
    flex-direction: column;
    align-items: center;
    transform: translateY(-130%);
    transition: transform 0.3s;
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3); /* 添加阴影增强可见性 */
}

.mobile-menu.active {
    transform: translateY(-4%);
    display: flex; /* 确保激活时显示 */
}

.mobile-menu a {
    color: #ffffff;
    text-decoration: none;
    margin: 10px 0;
    font-size: 16px;
    transition: color 0.3s;
    width: 100%; /* 使点击区域更大 */
    text-align: center; /* 居中文本 */
    padding: 10px 0; /* 增加点击区域 */
}

.mobile-menu a:hover {
    color: #00c8ff;
}

.mobile-menu a.active {
    color: #00c8ff;
    font-weight: bold;
}

.mobile-menu .login-btn {
    margin-top: 15px; /* 增加与其他项的间距 */
    width: auto; /* 保持按钮原有宽度 */
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    /* 确保logo在移动端也正确显示 */
    .logo h1 {
        font-size: 20px; /* 减小字体大小 */
    }
    
    .logo img {
        height: 40px; /* 减小logo大小 */
    }
    
    /* 调整header padding以适应移动设备 */
    .header {
        padding: 15px 20px;
    }
    
    /* 移动端用户菜单 */
    .mobile-user-section {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        margin-top: 10px;
        padding-top: 10px;
        width: 100%;
    }
    
    .mobile-user-header {
        display: flex;
        align-items: center;
        padding: 10px 0;
    }
    
    .mobile-user-header img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        border: 2px solid #00c8ff;
        margin-right: 10px;
    }
    
    .mobile-user-info h4 {
        margin: 0;
        color: #fff;
        font-size: 16px;
    }
    
    .mobile-user-info p {
        margin: 0;
        color: #a0a0a0;
        font-size: 12px;
    }
    
    .mobile-menu-item {
        display: flex;
        align-items: center;
        padding: 12px 0;
        color: #e0e0e0;
        text-decoration: none;
    }
    
    .mobile-menu-item i {
        margin-right: 10px;
        width: 20px;
        text-align: center;
    }
    
    .mobile-menu-item.logout {
        color: #ff6b6b;
    }
}

/* 简化用户头像和下拉菜单样式 */
.user-profile-nav {
    position: relative;
    margin-left: 15px;
}

.user-avatar {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 5px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.user-avatar:hover {
    background-color: rgba(0, 200, 255, 0.1);
}

.user-avatar img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #00c8ff;
    box-shadow: 0 0 10px rgba(0, 200, 255, 0.3);
}

.user-info {
    margin-left: 10px;
    display: none;
}

@media (min-width: 1100px) {
    .user-info {
        display: block;
    }
}

.user-name {
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    margin: 0;
}

.dropdown-icon {
    color: #a0a0a0;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.user-avatar.active .dropdown-icon {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 180px;
    background-color: #1a2635;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    padding: 10px 0;
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    border: 1px solid #2a3a4a;
}

.user-dropdown:before {
    content: '';
    position: absolute;
    top: -6px;
    right: 20px;
    width: 12px;
    height: 12px;
    background-color: #1a2635;
    transform: rotate(45deg);
    border-top: 1px solid #2a3a4a;
    border-left: 1px solid #2a3a4a;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #e0e0e0;
    text-decoration: none;
    transition: all 0.2s;
}

.dropdown-item:hover {
    background-color: rgba(0, 200, 255, 0.1);
    color: #00c8ff;
}

.dropdown-item i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.dropdown-divider {
    height: 1px;
    background-color: #2a3a4a;
    margin: 5px 0;
}

.logout-item {
    color: #ff6b6b;
}

.logout-item:hover {
    background-color: rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
}

/* 简化移动端用户菜单 */
.mobile-user-section {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 10px;
    padding-top: 10px;
    width: 100%;
}

.mobile-user-header {
    display: flex;
    align-items: center;
    padding: 10px 0;
}

.mobile-user-header img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #00c8ff;
    margin-right: 10px;
}

.mobile-user-info h4 {
    margin: 0;
    color: #fff;
    font-size: 16px;
}

.mobile-menu-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    color: #e0e0e0;
    text-decoration: none;
}

.mobile-menu-item i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.mobile-menu-item.logout {
    color: #ff6b6b;
}