/* 导航栏样式 */
:root {
    --primary: #007bff;
    --primary-light: #e8f4ff;
    --bg: #f8f9fa;
    --card: #ffffff;
    --text: #333333;
    --text-secondary: #6c757d;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-hover: 0 6px 16px rgba(0,0,0,0.1);
    --border-radius: 12px;
}

/* 顶部导航 */
.navbar {
    background: var(--card);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    border-radius: 0;
    position: sticky;
    top: 0;
    z-index: 999;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #0066cc;
    text-decoration: none;
    font-weight: bold;
}
.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
}
.logo-line1 {
    font-size: 16px;
    font-weight: bold;
    color: #0066cc;
}
.logo-line2 {
    font-size: 12px;
    font-weight: normal;
    color: #0066cc;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}
.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}
.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
}
.user-details {
    display: flex;
    flex-direction: column;
}
.user-nickname {
    font-size: 14px;
    font-weight: 500;
    color: #ffd700;
}
.user-openid {
    font-size: 12px;
    color: #666;
}
.logout-btn {
    background: #f0f0f0;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    color: var(--text);
}
.logout-btn:hover {
    background: #e0e0e0;
}
.login-btn {
    color: #0066cc;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
}
.dark-toggle {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #666;
}

/* 暗黑模式 */
body.dark-mode {
    --primary: #51a1ff;
    --primary-light: rgba(81, 161, 255, 0.1);
    --bg: #14151a;
    --card: #1e1f24;
    --text: #f5f5f5;
    --text-secondary: #b0b7c3;
    --shadow: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-hover: 0 6px 16px rgba(0,0,0,0.3);
}
body.dark-mode .logo {
    color: #00aaff;
}
body.dark-mode .logo-line1 {
    color: #00aaff;
}
body.dark-mode .logo-line2 {
    color: #00aaff;
}
body.dark-mode .user-nickname {
    color: #f0f0f0;
}
body.dark-mode .user-openid {
    color: #999;
}
body.dark-mode .logout-btn {
    background: #3a3a3a;
    color: #f0f0f0;
}
body.dark-mode .logout-btn:hover {
    background: #4a4a4a;
}
body.dark-mode .login-btn {
    color: #00aaff;
}
body.dark-mode .dark-toggle {
    color: #f0f0f0;
}

/* 响应式样式 */
@media (max-width: 767px) {
    .navbar {
        padding: 15px 16px;
    }
    .logo {
        font-size: 16px;
    }
    .logo-line1 {
        color: #0066cc !important;
    }
    .logo-line2 {
        color: #0066cc !important;
    }
    .logo img {
        height: 40px !important;
        width: 40px !important;
    }
    .nav-right {
        gap: 10px;
    }
    .user-info {
        gap: 10px;
    }
    .user-avatar {
        width: 20px !important;
        height: 20px !important;
    }
    .user-details {
        flex-direction: column;
        gap: 2px;
        align-items: flex-start;
    }
    .user-nickname {
        font-size: 12px;
    }
    .user-openid {
        font-size: 11px;
    }
    .login-btn {
        font-size: 13px;
    }
    .dark-toggle {
        font-size: 16px;
    }
}

@media (max-width: 479px) {
    .navbar {
        padding: 15px 16px;
    }
    .logo {
        font-size: 14px;
        gap: 8px;
    }
    .logo-line1 {
        color: #0066cc !important;
    }
    .logo-line2 {
        color: #0066cc !important;
    }
    .logo img {
        height: 40px !important;
        width: 40px !important;
    }
    .nav-right {
        gap: 8px;
    }
    .user-info {
        gap: 8px;
    }
    .user-avatar {
        width: 20px !important;
        height: 20px !important;
    }
    .user-details {
        flex-direction: column;
        gap: 2px;
        align-items: flex-start;
    }
    .user-nickname {
        font-size: 11px;
    }
    .user-openid {
        font-size: 10px;
    }
    .login-btn {
        font-size: 12px;
    }
    .dark-toggle {
        font-size: 14px;
    }
}

/* 暗黑模式响应式样式 */
@media (max-width: 768px) {
    body.dark-mode .logo-line1 {
        color: #00aaff !important;
    }
    body.dark-mode .logo-line2 {
        color: #00aaff !important;
    }
}

@media (max-width: 480px) {
    body.dark-mode .logo-line1 {
        color: #00aaff !important;
    }
    body.dark-mode .logo-line2 {
        color: #00aaff !important;
    }
}