/* 应用容器 */
.one.app-container {
    display: grid;
    grid-template-columns: 1fr;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    width: 100%;
}
.two.app-container {
    display: grid;
    grid-template-columns: 240px 1fr;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    width: 100%;
}
.two.app-container .info-panel{
    display: none;
}
.app-container {
    display: grid;
    grid-template-columns: 240px 1fr 300px;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    width: 100%;
}

.chat.app-container {
    grid-template-columns: 1fr;
}  

/* 消息操作按钮 */
.message-actions {
    position: absolute;
    display: flex;
    gap: var(--spacing-1);
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
    top: 8px;
    right: 8px;
}

.ai-message .message-actions {
    right: auto;
    left: 8px;
}

.message:hover .message-actions {
    opacity: 1;
    pointer-events: auto;
}

.message-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--gray-100);
    border: 1px solid transparent;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: 4px;
    transition: all 0.2s ease;
}

@media (max-width: 480px) {
    .message-action-btn {
        width: 36px;
        height: 36px;
        height: 36px;
    }
}

.message-action-btn:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
    transform: translateY(-2px);
}

.message-action-btn:active {
    transform: translateY(0);
}

/* 深色模式下的消息操作按钮 */
body.dark-mode .message-action-btn {
    background-color: var(--gray-700);
    color: var(--gray-400);
    border-color: var(--gray-600);
}

body.dark-mode .message-action-btn:hover {
    background-color: var(--gray-600);
    color: var(--gray-200);
}

/* 消息附件 */
.message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    margin-top: var(--spacing-4);
}

@media (max-width: 480px) {
    .message-attachments {
        flex-direction: column;
        gap: var(--spacing-2);
    }
}

.attachment {
    display: flex;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-md);
    font-size: 13px;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    position: relative;
}

.attachment:hover {
    background-color: rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.input-container .attachment:hover {
    transform: unset;
}

.attachment i {
    margin-right: var(--spacing-2);
    font-size: 16px;
    color: var(--primary-color);
}
.attachment .file-close {
    margin-right: 0;
    margin-left: var(--spacing-2);
    position: absolute;
    right: -6px;
    top: -9px;
    cursor: pointer;
    color: var(--gray-500);
}
.file-close:hover {
    color: var(--gray-900);
}

/* 深色模式下的附件 */
body.dark-mode .attachment {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--gray-700);
}

body.dark-mode .attachment:hover {
    background-color: rgba(255, 255, 255, 0.08);
}
body.dark-mode .attachment .file-close {
    color: var(--gray-400);
}
body.dark-mode .file-close:hover {
    color: var(--gray-100);
}

/* 消息反馈 */
.message-feedback {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-2);
    margin-top: var(--spacing-3);
}

@media (max-width: 480px) {
    .message-feedback {
        justify-content: space-between;
    }
    
    .feedback-btn {
        flex: 1;
        justify-content: center;
    }
}

.feedback-btn {
    display: flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: 12px;
    color: var(--gray-600);
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.feedback-btn i {
    margin-right: var(--spacing-1);
}

.feedback-btn:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
    border-color: var(--gray-200);
}

.feedback-btn.positive {
    color: var(--success);
}

.feedback-btn.negative {
    color: var(--error);
}

/* 深色模式下的反馈按钮 */
body.dark-mode .feedback-btn:hover {
    background-color: var(--gray-700);
    color: var(--gray-300);
    border-color: var(--gray-600);
}

/* 课程推荐卡片 */
.course-recommendations {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
    margin: var(--spacing-4) 0;
}

@media (max-width: 768px) {
    .course-recommendations {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
}

.course-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.course-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.course-image {
    height: 140px;
    position: relative;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-tag {
    position: absolute;
    top: var(--spacing-2);
    right: var(--spacing-2);
    background-color: var(--primary-color);
    color: white;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.course-info {
    padding: var(--spacing-3);
}

.course-info h5 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-1);
    color: var(--text-primary);
}

.course-instructor {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2);
}

.course-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--gray-500);
}

.course-meta span {
    display: flex;
    align-items: center;
}

.course-meta i {
    margin-right: 4px;
}

/* 深色模式下的课程卡片 */
body.dark-mode .course-card {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
}

body.dark-mode .course-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* 快捷问题 */
.quick-questions {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    position: relative;
    z-index: 10;
}

@media (max-width: 480px) {
    .quick-questions {
        padding: var(--spacing-2) var(--spacing-3);
        position: relative;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .quick-questions {
        padding: var(--spacing-3) var(--spacing-4);
    }
}

.quick-questions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-3);
}

.quick-questions-header h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.quick-questions-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

@media (max-width: 768px) {
    .quick-questions-list {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: var(--spacing-2);
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    
    .quick-questions-list::-webkit-scrollbar {
        height: 4px;
    }
    
    .quick-questions-list::-webkit-scrollbar-thumb {
        background-color: var(--gray-300);
        border-radius: 2px;
    }
}

.quick-question-btn {
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: 13px;
    color: var(--text-primary);
    transition: all 0.2s ease;
    border: 1px solid var(--gray-200);
    white-space: nowrap;
}

.quick-question-btn:hover {
    background-color: var(--gray-200);
    color: var(--gray-900);
    transform: translateY(-2px);
}

/* 深色模式下的快捷问题 */
body.dark-mode .quick-question-btn {
    background-color: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-300);
}

body.dark-mode .quick-question-btn:hover {
    background-color: var(--gray-600);
    color: var(--gray-100);
}

/* 输入区域 */
.input-container {
    display: flex;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--border-color);
    gap: var(--spacing-3);
    background-color: var(--bg-primary);
    z-index: 10;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    bottom: 0px;
    width: 100%;
    margin-bottom: 0;
    padding-bottom: 22px;
    position: absolute;
}

@media (max-width: 480px) {
    .input-container {
        padding: var(--spacing-2) var(--spacing-3);
        position: sticky;
        bottom: 0;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .input-container {
        padding: var(--spacing-3) var(--spacing-4);
    }
}

.input-wrapper {
    flex-grow: 1;
    align-items: center;
    background-color: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.input-wrapper .input-file-container {
    display: flex;
    gap: var(--spacing-3);
}

.input-wrapper .input-msg-container {
    display: flex;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(200, 50, 50, 0.1);
}

@media (max-width: 480px) {
    .input-wrapper {
        padding: var(--spacing-2);
    }
    
    .input-actions {
        gap: var(--spacing-1);
    }
}

body.dark-mode .input-wrapper {
    background-color: var(--gray-700);
    border-color: var(--gray-600);
}

body.dark-mode .input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(200, 50, 50, 0.2);
}

body.dark-mode .toggle-sidebar,
body.dark-mode .toggle-info-panel,
body.dark-mode .toggle-history-panel {
    background-color: var(--gray-700);
    color: var(--gray-300);
}

body.dark-mode .toggle-sidebar:hover,
body.dark-mode .toggle-info-panel:hover,
body.dark-mode .toggle-history-panel:hover {
    background-color: var(--gray-600);
}

body.dark-mode .mobile-header {
    border-bottom-color: var(--gray-700);
}

body.dark-mode .overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

.message-input, .audio-input {
    flex-grow: 1;
    border: none;
    background: transparent;
    resize: none;
    padding: var(--spacing-2) 0;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    color: var(--text-primary);
    transition: color 0.3s ease;
    min-height: 24px;
}

.input-actions {
    display: flex;
    gap: var(--spacing-2);
}

.action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    transition: all 0.2s ease;
    margin-top: 2px;
}

.action-btn:hover {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.action-btn i{
    font-size: 18px;
}

.send-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

@media (max-width: 480px) {
    .send-btn {
        width: 42px;
        height: 42px;
    }
}

.send-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.send-btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

.send-btn i {
    font-size: 20px;
}

/* 右侧信息面板 */
.info-panel {
    background-color: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.panel-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.btn-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
}

.btn-icon:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}
.btn-icon.big-panel {
    display: block;
}
.btn-icon.little-panel {
    display: none;
}

.panel-content {
    padding: var(--spacing-4);
    overflow-y: auto;
    flex-grow: 1;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 0 var(--spacing-3);
    margin-bottom: var(--spacing-5);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(200, 50, 50, 0.1);
}

.search-box i {
    color: var(--gray-500);
    margin-right: var(--spacing-2);
}

.search-box input {
    flex-grow: 1;
    border: none;
    background: transparent;
    padding: var(--spacing-2) 0;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    color: var(--text-primary);
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-3);
}

.section-title h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.view-all {
    font-size: 12px;
    color: var(--primary-color);
}

.resource-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.resource-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-3);
    border-radius: var(--radius-md);
    background-color: var(--gray-50);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.resource-item:hover {
    background-color: var(--gray-100);
    transform: translateY(-2px);
    border-color: var(--primary-color);
    cursor: pointer;
}

.resource-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-3);
}

.resource-info {
    width: calc(100% - 52px);
}

.resource-info h5 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;

}

.resource-info p {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.progress-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.progress-card {
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.progress-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2);
}

.progress-header h5 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.progress-percent {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
}

.progress-bar {
    height: 6px;
    background-color: var(--gray-200);
    border-radius: 3px;
    margin-bottom: var(--spacing-2);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 3px;
}

.progress-card p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 深色模式下的信息面板 */
body.dark-mode .search-box {
    background-color: var(--gray-700);
    border-color: var(--gray-600);
}

body.dark-mode .search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(200, 50, 50, 0.2);
}

body.dark-mode .resource-item {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
}

body.dark-mode .resource-item:hover {
    background-color: var(--gray-700);
    border-color: var(--primary-color);
}

body.dark-mode .progress-card {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
}

body.dark-mode .progress-card:hover {
    border-color: var(--primary-color);
}

body.dark-mode .progress-bar {
    background-color: var(--gray-700);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 220px 1fr 280px;
    }
    
    .feature-cards {
        gap: var(--spacing-3);
    }
    
    .course-recommendations {
        gap: var(--spacing-3);
    }
}

@media (max-width: 992px) {
    .app-container {
        grid-template-columns: 200px 1fr 0;
    }
    
    .btn-icon.big-panel {
        display: none;
    }
    .btn-icon.little-panel {
        display: block;
    }
    .info-panel {
        position: fixed;
        right: -300px;
        top: 0;
        bottom: 0;
        width: 300px;
        z-index: 1000;
        transition: right 0.3s ease;
        box-shadow: var(--shadow-lg);
    }
    
    .info-panel.active {
        right: 0;    
        display: block !important;
    }
    
    .feature-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .course-recommendations {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 平板和大型手机 */
@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 200px 1fr 0;
        height: 100vh;
        width: 100%;
    }
    
    .sidebar {
        position: fixed;
        left: -240px;
        top: 0;
        bottom: 0;
        width: 240px;
        z-index: 1000;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
    }
    
    .sidebar.active {
        left: 0;
    }

    .mobile-header {
        display: flex !important;
        padding: var(--spacing-3) var(--spacing-4);
        border-bottom: 1px solid var(--border-color);
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    
    .mobile-logo {
        display: flex;
        align-items: center;
    }
    
    .mobile-logo img {
        width: 32px;
        height: 32px;
        margin-right: var(--spacing-2);
    }
    
    .mobile-logo h2 {
        font-size: 16px;
        font-weight: 600;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
    
    .course-recommendations {
        grid-template-columns: 1fr;
    }
    
    .message {
        max-width: 95%;
    }
    
    .welcome-container {
        padding: var(--spacing-4);
    }
    
    .welcome-actions {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .welcome-actions .btn {
        width: 100%;
    }
    
    .input-container {
        padding: var(--spacing-3) var(--spacing-4);
        position: absolute;
        bottom: 0px;
        width: 100%;
        margin-bottom: 0;
        padding-bottom: 22px;
    }
    
    .quick-questions {
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .quick-questions-list {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: var(--spacing-2);
        -webkit-overflow-scrolling: touch;
    }
    
    .quick-question-btn {
        white-space: nowrap;
    }
    
    .main-content {
        width: 100%;
        height: 100vh;
    }
}

/* 手机端 */
@media (max-width: 480px) {
    body {
        overflow: hidden;
    }
    
    .app-container {
        display: flex;
        flex-direction: column;
        height: 100vh;
        width: 100vw;
        overflow: hidden;
    }
    
    .main-content {
        display: flex;
        flex-direction: column;
        height: 100%;
        width: 100%;
        overflow: hidden;
    }
    
    .chat-container {
        flex: 1;
        overflow-y: auto;
        width: 100%;
        padding: var(--spacing-3);
    }
    
    .message {
        max-width: 100%;
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .user-message {
        flex-direction: column;
        align-items: flex-end;
    }
    
    .ai-message {
        align-items: flex-start;
    }
    
    .message-content {
        max-width: 100%;
        width: auto;
        border-radius: var(--radius-lg);
    }
    
    .message-content::before {
        display: none;
    }
    
    .message-actions {
        position: absolute;
        top: 8px;
        right: 8px;
        right: auto;
        left: auto;
        top: auto;
        transform: none;
        flex-direction: row;
        opacity: 1;
        margin-top: var(--spacing-2);
        justify-content: flex-end;
    }
    
    .ai-message .message-actions {
        justify-content: flex-start;
        left: 8px;
        right: auto;
    }
    
    .welcome-container {
        padding: var(--spacing-3);
        margin-bottom: var(--spacing-4);
    }
    
    .ai-avatar {
        width: 60px;
        height: 60px;
    }
    
    .ai-avatar img {
        width: 40px;
        height: 40px;
    }
    
    .welcome-header h3 {
        font-size: 20px;
    }
    
    .welcome-header p {
        font-size: 14px;
    }
    
    .topic-card {
        padding: var(--spacing-3);
    }
    
    .topic-icon {
        width: 40px;
        height: 40px;
    }
    
    .topic-icon i {
        font-size: 20px;
    }
    
    .topic-content h4 {
        font-size: 15px;
    }
    
    .topic-content p {
        font-size: 13px;
    }
    
    .input-container {
        padding: var(--spacing-2) var(--spacing-3);
        padding-bottom: 18px;
    }
    
    .input-wrapper {
        padding: var(--spacing-1) var(--spacing-2);
    }
    
    .message-input, .audio-input {
        font-size: 14px;
    }
    
    .action-btn {
        width: 28px;
        height: 28px;
    }
    
    .send-btn {
        width: 40px;
        height: 40px;
    }
    
    .quick-questions {
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .quick-question-btn {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: 12px;
    }
    
    /* 修复消息气泡宽度 */
    .message-content {
        width: 100%;
        max-width: 100%;
    }
    
    .user-message .message-content,
    .ai-message .message-content {
        max-width: 100%;
    }
}

/* 小型手机 */
@media (max-width: 360px) {
    
    .welcome-container {
        padding: var(--spacing-2);
    }
    
    .welcome-header h3 {
        font-size: 18px;
    }
    
    .welcome-header p {
        font-size: 12px;
    }
    
    .conversation-topics {
        gap: var(--spacing-2);
    }
    
    .message-avatar {
        width: 32px;
        height: 32px;
    }
    
    .message-sender {
        font-size: 13px;
    }
    
    .message-time {
        font-size: 11px;
    }
    
    .message-text p {
        font-size: 14px;
    }
}

/* 添加的新样式 */
.mobile-header {
    display: none;
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex !important;
    }
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.overlay.active {
    display: block;
    opacity: 1;
}

@media (max-width: 480px) {
    html, body {
        height: 100%;
        width: 100%;
        overflow: hidden;
        position: fixed;
        touch-action: manipulation;
        -webkit-user-select: none;
        user-select: none;
    }
    
    /* 允许在特定元素中进行滚动和选择 */
    .chat-container, .message-text, .message-input, .audio-input {
        touch-action: auto;
        -webkit-user-select: text;
        user-select: text;
    }
}

/* 深色模式 */
body.dark-mode {
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #374151;
    
    /* 深色模式下的阴影调整 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}
@media (max-width: 768px) {
    .app-container {
        display: flex;
        flex-direction: column;
        grid-template-columns: 1fr;
    }
    .two.app-container {
        grid-template-columns: 1fr;
        display: flex;
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .app-container {
        height: 100vh; /* 回退方案 */
        /*height: calc(var(--vh, 1vh) * 100 - 30px);*/
        width: 100%;
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
    
    .main-content {
        height: 100vh; /* 回退方案 */
        height: calc(var(--vh, 1vh) * 100);
    }
}

@media screen and (max-width: 768px) {
  /* 地址栏显示时的样式 */
  /* .app-container {
        height: calc(var(--vh, 1vh) * 100 - 30px);
    } */
}

/* 侧边栏样式 */
.sidebar {
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-4);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.logo-container {
    display: flex;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.logo {
    width: 40px;
    height: 40px;
    margin-right: var(--spacing-3);
}

.logo2 {
    width: 100%;
    height: 40px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.logo-text span {
    font-size: 14px;
    color: var(--gray-600);
    display: block;
    font-weight: normal;
}

.main-nav {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.nav-item {
    display: block;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-2);
    color: var(--gray-700);
    transition: all 0.2s ease;
}

.nav-item i {
    font-size: 20px;
    margin-right: var(--spacing-3);
}

.nav-item i.expend {
    margin-right: 0;
    float: right;
    /* transform: rotate(0deg);
    transition: transform 0.3s; */
}
.nav-item i.expend.active {
    /* transform: rotate(-180deg); */
}

.nav-item:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.nav-item.active {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-weight: 500;
}

.nav-item.disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
    color: var(--gray-400);
}
body.dark-mode .nav-item.disabled {
    background-color: var(--gray-600);
    color: var(--gray-500)
}

.nav-item.level-2 {
    margin-left: 20px;
}

.main-nav .menu-children {
    display: block;
    transition: transform 0.3s;
}
.main-nav .menu-children.expend {
    display: none;
}

.sidebar-footer {
    padding: var(--spacing-4) 0;
    border-top: 1px solid var(--gray-200);
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.settings-link, .theme-toggle, .logout-link {
    display: flex;
    align-items: center;
    color: var(--gray-600);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.settings-link:hover, .theme-toggle:hover, .logout-link:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.settings-link i, .theme-toggle i, .logout-link i {
    margin-right: var(--spacing-3);
}

/* 主内容区样式 */
.main-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

@media (max-width: 480px) {
    .message {
        max-width: 100%;
        width: 100%;
        flex-direction: column;
        gap: var(--spacing-2);
        margin-bottom: var(--spacing-2);
    }
}

.chat-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: var(--spacing-6);
    padding-bottom: 0;
    margin-bottom: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    overscroll-behavior: contain;
}

.chat-container::-webkit-scrollbar {
    width: 6px;
}

.chat-container::-webkit-scrollbar-thumb {
    background-color: var(--gray-300);
    border-radius: 3px;
}

@media (max-width: 768px) {
    .chat-container {
        padding: var(--spacing-4);
        padding-bottom: 80px;
    }
}

/* 欢迎区域 */
.welcome-container {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-8);
    padding: var(--spacing-6);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .welcome-container {
        padding: var(--spacing-4);
        margin-bottom: var(--spacing-5);
    }
}

.welcome-header {
    margin-bottom: var(--spacing-6);
}

.ai-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background-color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    box-shadow: 0 6px 12px rgba(200, 50, 50, 0.15);
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.ai-avatar img {
    width: 54px;
    height: 54px;
    transition: transform 0.5s ease;
}

.welcome-container:hover .ai-avatar img {
    transform: scale(1.1) rotate(5deg);
}

/* 深色模式下的AI头像 */
body.dark-mode .ai-avatar {
    background-color: rgba(200, 50, 50, 0.2);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.1);
}

.welcome-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.welcome-header p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto var(--spacing-5);
}

.welcome-footer {
    padding: var(--spacing-4) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-4);
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
}

@media (max-width: 480px) {
    .welcome-footer {
        flex-direction: column;
        width: 100%;
    }
    
    .welcome-footer .btn {
        width: 100%;
        justify-content: center;
    }
}

body.dark-mode .welcome-footer {
    border-top-color: var(--gray-700);
}

.conversation-topics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.topics-title {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: var(--spacing-4);
    font-size: 18px;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .conversation-topics {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .conversation-topics {
        grid-template-columns: repeat(2, 1fr);
    }
}

.topic-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    cursor: pointer;
}

.topic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.topic-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.topic-icon i {
    font-size: 24px;
}

.topic-content {
    flex: 1;
}

.topic-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.topic-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* 深色模式下的话题卡片 */
body.dark-mode .topic-card {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
}

body.dark-mode .topic-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

body.dark-mode .welcome-container {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
}

body.dark-mode .topic-icon {
    background-color: rgba(200, 50, 50, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(200, 50, 50, 0.15);
}

.feature-icon i {
    font-size: 26px;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon i {
    transform: scale(1.1);
}

/* 深色模式下的图标 */
body.dark-mode .feature-icon {
    background-color: rgba(200, 50, 50, 0.2);
    box-shadow: 0 4px 8px rgba(200, 50, 50, 0.2);
}

.feature-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.feature-card p {
    font-size: 14px;
    color: var(--gray-600);
}

/* 消息区域 */
.messages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
    padding: var(--spacing-4) 0;
}

/* 图片容器样式 */
.message-image-container {
    margin: var(--spacing-3) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    max-width: 100%;
    position: relative;
}

.message-image {
    width: 100%;
    border-radius: var(--radius-md);
    transition: transform 0.3s ease;
    display: block;
}

.message-image-container:hover .message-image {
    transform: scale(1.02);
}

/* 深色模式下的图片容器 */
body.dark-mode .message-image-container {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--gray-700);
}

.message {
    display: flex;
    gap: var(--spacing-4);
    max-width: 85%;
    animation: fadeIn 0.3s ease-out;
    position: relative;
}

@media (max-width: 768px) {
    .message {
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    .message {
        max-width: 100%;
    }
}

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

.ai-message {
    align-self: flex-start;
    max-width: 94%;
    width: calc(98% - 50px);
}
.ai-message .message-content{
    max-width: calc(98% - 50px);
    /* width: calc(98% - 50px);
    max-width: unset; */
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
    overflow: hidden;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

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

.message-content {
    background-color: var(--gray-100);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    border-top-left-radius: 0;
    box-shadow: var(--shadow-sm);
    position: relative;
    width: auto;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

@media (max-width: 480px) {
    .message-content {
        padding: var(--spacing-3);
        border-radius: var(--radius-lg);
        width: auto;
    }
}

.message-content::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -10px;
    width: 0;
    height: 0;
    border-top: 10px solid var(--gray-100);
    border-left: 10px solid transparent;
}

.user-message .message-content {
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    border-top-right-radius: 0;
    border-color: rgba(200, 50, 50, 0.1);
}

@media (max-width: 480px) {
    .user-message .message-content {
        border-radius: var(--radius-lg);
        width: auto;
        max-width: 90%;
        align-self: flex-end;
    }
    
    .ai-message .message-content {
        border-radius: var(--radius-lg);
        width: auto;
        max-width: 100%;
        align-self: flex-start;
    }
    
    .user-message {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        width: 100%;
    }
    
    .ai-message {
        display: flex;
        /*flex-direction: column;*/
        flex-direction: row;
        align-items: flex-start;
        width: 100%;
    }
}

.user-message .message-content::before {
    left: auto;
    right: -10px;
    border-top: 10px solid var(--primary-light);
    border-left: none;
    border-right: 10px solid transparent;
}

/* 深色模式下的消息气泡 */
body.dark-mode .message-content {
    background-color: var(--gray-700);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--gray-600);
}

body.dark-mode .message-content::before {
    border-top-color: var(--gray-700);
}

body.dark-mode .user-message .message-content {
    background-color: rgba(200, 50, 50, 0.25);
    border: 1px solid rgba(200, 50, 50, 0.3);
}

body.dark-mode .user-message .message-content::before {
    border-top-color: rgba(200, 50, 50, 0.25);
}

body.dark-mode .message-sender {
    color: var(--gray-200);
}

body.dark-mode .message-time {
    color: var(--gray-400);
}

.message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.user-message .message-header {
    flex-direction: row-reverse;
}

.user-message .message-header .message-time {
    margin-left: 0px;
    margin-right: 20px;
}

.message-sender {
    font-weight: 500;
    font-size: 14px;
}

.message-time {
    margin-left: 20px;
    margin-top: 2px;
    font-size: 12px;
    color: var(--gray-500);
}

.message-text p {
    margin-bottom: var(--spacing-3);
    line-height: 1.6;
}

.message-text p:last-child {
    margin-bottom: 0;
}

/* 优化图片显示效果 */
.message-text img:not(.emoji) {
    border-radius: var(--radius-md);
    max-width: 100%;
    height: auto;
    margin: var(--spacing-3) 0;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.message-text img:not(.emoji):hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

/* 深色模式下的图片 */
body.dark-mode .message-text img:not(.emoji) {
    border-color: var(--gray-700);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* 表情符号样式 */
.message-text .emoji {
    display: inline-block;
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin: 0 2px;
}

/* 消息类型样式 */
.message-text .code-block {
    background-color: rgba(0, 0, 0, 0.05);
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    overflow-x: auto;
    margin: var(--spacing-4) 0;
    font-size: 14px;
    line-height: 1.6;
    border: 1px solid var(--border-color);
    position: relative;
}

.message-text .code-block::before {
    content: 'Code';
    position: absolute;
    top: -10px;
    left: 12px;
    background-color: var(--bg-primary);
    padding: 0 8px;
    font-size: 12px;
    color: var(--gray-600);
    font-family: var(--font-sans);
}

@media (max-width: 480px) {
    .message-text .code-block {
        padding: var(--spacing-3);
        font-size: 12px;
        margin: var(--spacing-3) 0;
    }
}

.message-text .quote {
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-3) var(--spacing-4);
    margin: var(--spacing-4) 0;
    font-style: italic;
    color: var(--text-secondary);
    background-color: rgba(0, 0, 0, 0.02);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.message-text .highlight {
    background-color: rgba(200, 50, 50, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

/* 深色模式下的代码块和引用 */
body.dark-mode .message-text .code-block {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--gray-700);
}

body.dark-mode .message-text .code-block::before {
    background-color: var(--bg-primary);
    color: var(--gray-400);
}

body.dark-mode .message-text .quote {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--gray-300);
}

body.dark-mode .message-text .highlight {
    background-color: rgba(200, 50, 50, 0.25);
}

/* 消息状态指示器 */
.message-status {
    display: flex;
    align-items: center;
    font-size: 12px;
    color: var(--gray-500);
    margin-top: var(--spacing-2);
}

.message-status i {
    margin-right: var(--spacing-1);
    font-size: 14px;
}

.message-status.seen i {
    color: var(--info);
}

/* 消息操作按钮 */
.message-actions {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    opacity: 0;
    transition: opacity 0.2s ease;
    display: none !important;
}

.ai-message .message-actions {
    right: auto;
    left: -40px;
}

.message:hover .message-actions {
    opacity: 1;
}

.message-action-btn {
    width: 100%;
}

/* Message Actions Styles */

/* User message specific styles */
.message.user-message {
    display: -webkit-box;
    flex-direction: row-reverse;
    align-self: flex-end;
    max-width: 94%;
}

.message.user-message .message-avatar {
    margin-left: 0px;
    margin-right: 0;
}

.message.user-message .message-content {
    margin-right: 0px;
    margin-left: 0;
    max-width: calc(98% - 50px);
}
@media (max-width: 480px) {
    .user-message .message-content {
        max-width: 100%;
    }
}

.message.user-message .message-actions {
    right: auto;
    left: 8px;
}

/* Message actions container */
.message-actions {
    position: absolute;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
    top: 8px;
    right: 8px;
    pointer-events: none;
}

/* Position for AI messages */
.message.ai-message .message-actions {
    right: auto;
    left: 8px;
}

/* Show actions on hover */
.message:hover .message-actions {
    opacity: 1;
    pointer-events: auto;
}

/* Action buttons */
.message-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--gray-100);
    border: 1px solid transparent;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: 4px;
    transition: all 0.2s ease;
}

/* Button hover effect */
.message-action-btn:hover {
    background-color: var(--gray-200);
}

/* Button active effect */
.message-action-btn:active {
    transform: translateY(1px);
}

/* Dark mode styles */
body.dark-mode .message-action-btn {
    background-color: var(--gray-700);
    color: var(--gray-300);
}

body.dark-mode .message-action-btn:hover {
    background-color: var(--gray-600);
}

/* Mobile styles */
@media (max-width: 480px) {
    .message-action-btn {
        width: 36px;
        height: 36px;
    }
    
    .message-actions {
        position: absolute;
        top: 8px;
        right: 8px;
    }
    
    .message.ai-message .message-actions {
        left: 8px;
        right: auto;
    }
    
    .message.user-message .message-actions {
        right: auto;
        left: 8px;
    }
    
    .message.user-message {
        /* flex-direction: column-reverse;*/
        display:flex;
        justify-content: flex-end;
        flex-wrap: wrap;
        align-items: flex-start;
        flex-direction: row;
    }
}

.ai-think {
    background: linear-gradient(0deg,#2651fe,#af5fff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-weight: 500;
    line-height: var(---cos-text-subtitle);
    position: relative;
}
.ai-think img {
    height: 13px;
    margin-right: 4px;
    width: 14px;
}
.ai-think>span {
    display: -webkit-inline-box;
}
@media (max-width: 480px) {
    .ai-think>span {
        color: #4965d6;
        -webkit-text-fill-color: #4965d6;
    }
}
.ai-think .dots {
    align-items: center;
    margin-left: 7px;
    padding-top: 5px;
}
.ai-think .dot {
    background: linear-gradient(0deg,#2651fe,#af5fff);
}

.loading {
    font-style: italic;
}
.complete {
    font-style: normal;
}

.expand-arrow {
    transition: transform 0.3s ease;
    color: #000;
    top: -2px;
    position: absolute;
    right: 10px;
    width: 28px;
    height: 28px;
    transform: rotate(180deg);
}
.expand-arrow.active {
    transform: rotate(360deg);
}

.think-expand-arrow {
    font-size: 24px;
    float: right;
    height: 20px;
    margin-top: -6px;
}

/* 类似加载中的动画效果*/
@keyframes dotPulse {
    0%, 100% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
  }
.dots {
    gap: 4px;
    display: flex;
    margin-right: 5px;
}
.dot {
    background-color: #a52020;
    border-radius: 50%;
    width: 4px;
    height: 4px;
    animation: 1.4s ease-in-out infinite dotPulse;
}
.dot:nth-child(2) {
    animation-delay: .2s;
}
.dot:nth-child(3) {
    animation-delay: .4s;
}

/* 语音输入的随机波形图 */
.sound-wave {
   display: flex;
}
.sound-wave .sound-bar {
    /* bar的基础属性 */
    width: 1px;    /* 宽度 */
    height: 2px;   /* 基础高度 */
    background-color: #398849;  /* 颜色 */
    margin-right: 1px;
    transform: scaleY(2);
    animation-duration: 0.8s;
    animation-iteration-count: infinite;
    animation-direction: alternate;
    animation-timing-function: cubic-bezier(0.42, 0, 0.58, 1);
}

/* 给不同的bar应用不同的动画，使跳动更有层次感 */
.sound-wave .sound-bar:nth-child(4n) {
    animation-name: bar-scale-xl;   
    animation-duration: 0.8 + 0.2s;  
}
.sound-wave .sound-bar:nth-child(4) {
    animation-duration: 0.8 + 0.35s;
}
.sound-wave .sound-bar:nth-child(3) {
    animation-name: bar-scale-lg;
    animation-duration: 0.8 + 0s;
}
.sound-wave .sound-bar:nth-child(6) {
    animation-name: bar-scale-md;
    animation-duration: 0.8 + 0.05s;
}

.sound-wave .sound-bar:nth-child(2),
.sound-wave .sound-bar:nth-child(5),
.sound-wave .sound-bar:nth-child(7),
.sound-wave .sound-bar:nth-child(9) {
    animation-name: bar-scale-sm;
    animation-duration: 0.9s;
}

/* 定义不同跳动效果的动画 */ 
@keyframes bar-scale-sm {
    0%,
    50% {
        transform: scaleY(1);
    }
    25% {
        transform: scaleY(4);
    }
    75% {
        transform: scaleY(2);
    }
}

@keyframes bar-scale-md {
    0%,
    50% {
        transform: scaleY(2);
    }
    25% {
        transform: scaleY(4);
    }
    75% {
        transform: scaleY(3);
    }
}

@keyframes bar-scale-lg {
    0%,
    50% {
        transform: scaleY(5);
    }
    25% {
        transform: scaleY(2);
    }
    75% {
        transform: scaleY(4);
    }
}

@keyframes bar-scale-xl {
    0%,
    50% {
        transform: scaleY(1);
    }
    25% {
        transform: scaleY(4);
    }
    75% {
        transform: scaleY(5);
    }
}

/* 从左往右顺序变化的波形图，类微信语音 */ 
@keyframes wx-wave {
    0%,
    100% {
        height: 30%;
    }

    50% {
        height: 80%;
    }
}
.voice-message {
    gap: 2px;
    align-items: center;
    cursor: pointer;
    display: flex;    
    border-radius: 0.5rem;
    padding: 0.2rem;
    background: rgb(220 252 231);
    width: 20%;
    padding-left: 8px;
}
.voice-message i{
    font-size: 16px;
}
.voice-message span{
    margin-bottom: 2px;
}
.voice-message-wave-box {
    align-items: flex-end;
    height: 16px;
    display: flex;
}
.wx-wave-bar {
    width: 0.25rem;
    border-radius: 9999px;
    --tw-bg-opacity: 1;
    background-color: rgb(34 197 94);
    margin-left: 0.25rem;
}
.play-animation .wx-wave-bar{
    animation: wx-wave 0.8s infinite ease-in-out;
}
.play-animation .wx-wave-bar:nth-child(0) {
    margin-left: 0rem;
}

.play-animation .wx-wave-bar:nth-child(2) {
    animation-delay: 0.2s;
}

.play-animation .wx-wave-bar:nth-child(3) {
    animation-delay: 0.4s;
}

.play-animation .wx-wave-bar:nth-child(4) {
    animation-delay: 0.6s;
}

.play-animation .wx-wave-bar:nth-child(5) {
    animation-delay: 0.8s;
}

.dark-mode .voice-message {
    background: var(--gray-500);
}

.dark-mode .wx-wave-bar {
    background: var(--gray-200);
}

/* 弹框语音 */
.voice-panel {
    position: fixed;
    bottom: 180px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 20px 30px;
    border-radius: 30px;
    text-align: center;
    display: block;
    width: 80%;
    max-width: 300px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: -1;
    opacity: 0;
}

.voice-panel.active {
    display: block;
    animation: slideUp 0.3s ease-out;
    z-index: 100;
    opacity: 1;
}

@keyframes slideUp {
    from { opacity: 0; transform: translate(-50%, 20px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

.voice-timer {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    font-feature-settings: "tnum";
}

.voice-wave {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    height: 50px;
    margin: 15px 0;
}

.voice-status {
    font-size: 16px;
    margin-top: 10px;
}

.voice-cancel {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 15px;
    border-radius: 50px;
    font-size: 14px;
    display: none;
}

.voice-panel.active.show-cancel .voice-cancel {
    display: block;
}
.input-container .input-wrapper.show-cancel {
    background: var(--primary-dark);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .voice-btn i {
        font-size: 18px;
    }
    
    .voice-panel {
        bottom: 170px;
        padding: 15px 25px;
        border-radius: 25px;
    }
    
    .voice-timer {
        font-size: 18px;
    }
    
    .voice-wave {
        height: 40px;
    }
    
    .input-box {
        font-size: 14px;
        padding: 8px 12px;
        margin-right: 10px;
    }
}

/* 防止移动端键盘弹出时挤压界面 */
@media (max-height: 500px) {
    .chat-container {
        max-height: 60vh;
    }
}

/* 添加历史记录后主内容区样式 */
.chat-body-container {
    grid-template-columns: 200px 1fr;
    display: grid;
    height: inherit;
}
.chat-history-container {
    padding: 16px 8px;
    border-right: 1px solid #eee;
}

.history-header {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: 0 8px;
    margin-bottom: 12px;
    padding-right: 0px;
}
.history-header .history-title {
    font-size: 13px;
    color: #666;
    font-weight: 500;
}
.chat-history {
    overflow-y: auto;
    display: grid;
}
.chat-history-item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    padding: 10px 12px;
    margin: 2px 0;
    border-radius: 8px;
    cursor: pointer;
    -webkit-transition: all .2s;
    transition: all .2s;
    position: relative;
    max-width: 174px;
}
.chat-history-item.active{
    background: #e6f4ff;
}
.chat-history-item.active:hover{
    background: #e6f4ff;
}
.chat-history-item:hover{
    background: var(--gray-100);
}
.chat-history-item .chat-icon{
    font-size: 18px;
    color: var(--gray-700);
    margin-right: 15px;
}
.chat-history-item .chat-info {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    min-width: 0;
}
.chat-history-item .title {
    text-align: left;
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0 auto 5px auto;
}
.chat-history-item .time {
    font-size: 12px;
    color: #999;
}
.empty-data {
    text-align: center;
    font-size: 12px;
    color: var(--gray-300);
    padding-top: 20px;
}
.chat-body-container.no-history {
    grid-template-columns: 1fr;
}
.chat-body-container.no-history .chat-history-container {
    display: none;
}
.chat-body-container .chat-container {
    padding-bottom: 80px;
    position: relative;
}
.chat-body-container.no-history .chat-container {
    height: auto;
}
.chat-out-container {
    position: relative;
}

@media (max-width: 768px) {
    .chat-body-container {
        grid-template-columns: 1fr;
    }
    .chat-history-item {
        max-width: 100vw;
    }
    .chat-history-container {
        position: absolute;
        z-index: 999;
        width: 100%;
        background-color: var(--gray-50);
        height: calc(100vh - 140px);
    }
}
.ai-tip {
    display: block;
    position: absolute;
    bottom: 0px;
    font-size: 12px;
    color: var(--gray-200);
    text-align: center;
    width: calc(100% - 50px);
    margin: 1px 0;
}