* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 90%;
    max-width: 1200px;
    min-height: 600px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    display: flex;
    overflow: hidden;
}

.content {
    flex: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.welcome-section {
    text-align: center;
}

.welcome-section h1 {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.welcome-text {
    font-size: 1.2rem;
    line-height: 1.8;
    opacity: 0.9;
}

.auth-container {
    width: 500px;
    background: white;
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.form-toggle {
    display: flex;
    margin-bottom: 30px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.toggle-btn {
    flex: 1;
    padding: 15px;
    border: none;
    background: #f0f0f0;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.toggle-btn.active {
    background: #667eea;
    color: white;
}

.form-panel {
    display: none;
    animation: fadeIn 0.3s ease;
    margin-top: 10px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-panel.active {
    display: block;
}

.form-panel h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 25px;
    text-align: center;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: #667eea;
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.remember-me input {
    width: auto;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

@media (max-width: 1024px) {
    .container {
        flex-direction: column;
        min-height: auto;
        margin: 20px;
    }

    .content {
        padding: 40px;
    }

    .auth-container {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        margin: 0;
        border-radius: 0;
    }

    .auth-container {
        padding: 20px;
    }

    .welcome-section h1 {
        font-size: 2.5rem;
    }
}

.main-container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-nav {
    display: none;
}

.logo {
    display: none;
}

.user-info {
    display: none;
}

main {
    flex: 1;
    padding: 2rem;
    background-color: #f5f5f5;
}

.content-section {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.content-section h2 {
    color: #333;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #f0f0f0;
}

.admin-features,
.user-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.feature-btn {
    padding: 1rem;
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.feature-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .main-nav {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .admin-features,
    .user-features {
        grid-template-columns: 1fr;
    }

    main {
        padding: 1rem;
    }
}

/* 内容包装器 */
.content-wrapper {
    display: flex;
    height: 100vh; /* 修改为全屏高度 */
}

/* 主工具栏样式 */
.main-toolbar {
    width: 80px;
    background-color: #2c3e50;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    transition: width 0.3s ease;
}

.main-toolbar.collapsed {
    width: 50px;
}

.main-toolbar.collapsed .tool-item span {
    display: none;
}

.main-toolbar.collapsed .logo-image {
    width: 30px;
    height: 30px;
}

.tools-container {
    flex: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.toolbar-toggle {
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background-color: #34495e;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 100;
}

.toolbar-toggle i {
    transition: transform 0.3s ease;
}

.sub-toolbar.collapsed .toolbar-toggle i {
    transform: rotate(180deg);
}

.toolbar-toggle:hover {
    background-color: #2c3e50;
}

/* 调整子工具栏的过渡效果 */
.sub-toolbar {
    width: 200px;
    background-color: #34495e;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
}

.sub-toolbar.collapsed {
    width: 0;
}

.sub-toolbar-content {
    min-width: 200px;
    padding: 20px 0;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.sub-toolbar.collapsed .sub-toolbar-content {
    opacity: 0;
}

.tool-item {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 0;
    color: #ecf0f1;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-item i {
    font-size: 24px;
    margin-bottom: 5px;
}

.tool-item span {
    font-size: 12px;
    text-align: center;
}

.tool-item:hover {
    background-color: #34495e;
}

.tool-item.active {
    background-color: #3498db;
}

/* 子工具栏样式 */
.sub-menu {
    display: none;
    white-space: nowrap;
}

.sub-menu.active {
    display: block;
}

.sub-item {
    padding: 12px 20px;
    color: #ecf0f1;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sub-item:hover {
    background-color: #2c3e50;
}

.sub-item.active {
    background-color: #3498db;
}

/* 主要内容区域 */
.main-content {
    flex: 1;
    padding: 20px;
    background-color: #f5f5f5;
    overflow-y: auto;
}

#contentArea {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .content-wrapper {
        flex-direction: column;
    }

    .main-toolbar {
        width: 100%;
        height: 60px;
        flex-direction: row;
        justify-content: space-around;
        padding: 0;
    }

    .tool-item {
        padding: 10px;
    }

    .sub-toolbar {
        width: 100%;
        height: auto;
        max-height: 200px;
    }

    .form-row {
        flex-direction: column;
        gap: 15px;
    }

    .form-row .form-group {
        margin-bottom: 0;
    }

    .auth-container {
        padding: 20px;
    }
}

.logo-container {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background-color: white;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
}

.breadcrumb i {
    font-size: 14px;
    color: #999;
}

/* 用户下拉菜单 */
.user-dropdown {
    position: relative;
}

.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.user-dropdown-toggle:hover {
    background-color: #f5f5f5;
}

.user-dropdown-toggle i {
    font-size: 12px;
    color: #666;
    transition: transform 0.2s ease;
}

.user-dropdown.active .user-dropdown-toggle i {
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    min-width: 160px;
    display: none;
    z-index: 1000;
}

.user-dropdown.active .user-dropdown-menu {
    display: block;
}

.dropdown-item {
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #333;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.dropdown-item i {
    font-size: 14px;
    color: #666;
    width: 16px;
    text-align: center;
}

.dropdown-item:hover {
    background-color: #f5f5f5;
}

.dropdown-divider {
    height: 1px;
    background-color: #e0e0e0;
    margin: 4px 0;
}

.admin-only {
    display: none;
}

/* 主内容区域调整 */
#contentArea {
    padding: 20px;
}

/* 标签页容器 */
.tabs-container {
    background-color: white;
    border-bottom: 1px solid #e0e0e0;
}

.tabs-header {
    display: flex;
    padding: 0 20px;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: #ccc transparent;
    height: 40px;
}

.tabs-header::-webkit-scrollbar {
    height: 4px;
}

.tabs-header::-webkit-scrollbar-track {
    background: transparent;
}

.tabs-header::-webkit-scrollbar-thumb {
    background-color: #ccc;
    border-radius: 2px;
}

.tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    margin-right: 4px;
    margin-top: 4px;
    cursor: pointer;
    position: relative;
    user-select: none;
    color: #666;
    min-width: 120px;
    max-width: 200px;
    height: 36px;
    transition: all 0.2s ease;
}

.tab i {
    font-size: 14px;
}

.tab span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tab .close-tab {
    visibility: hidden;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 12px;
    color: #999;
    margin-left: 4px;
}

.tab:not([data-tab="overview"]):hover .close-tab {
    visibility: visible;
}

.tab .close-tab:hover {
    background-color: rgba(0, 0, 0, 0.1);
    color: #666;
}

.tab.active {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-bottom: 1px solid white;
    margin-bottom: -1px;
    color: #2c3e50;
    font-weight: 500;
    box-shadow: 0 -2px 4px rgba(0,0,0,0.05);
}

.tab.active::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    height: 2px;
    background: #3498db;
    border-radius: 2px 2px 0 0;
}

.tab.active i {
    color: #3498db;
}

.tab:hover:not(.active) {
    background-color: #f0f0f0;
}

/* 标签页内容区域 */
.tabs-content {
    flex: 1;
    overflow: auto;
    background-color: white;
    position: relative;
}

.tab-pane {
    display: none;
    padding: 20px;
}

.tab-pane.active {
    display: block;
}

/* 调整主内容区域的布局 */
.main-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.password-input {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input input {
    padding-right: 40px;
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.toggle-password:hover {
    opacity: 0.7;
}

.toggle-password:focus {
    outline: none;
}

.visibility-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
}