RAG/static/chat/style.css

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, #0F2027 0%, #203A43 50%, #2C5364 100%);
    height: 100vh;
    overflow: hidden;
}

/* 聊天容器 */
.chat-container {
    display: flex;
    height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    overflow: hidden;
}

/* 侧边栏 */
.sidebar {
    width: 320px;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.5px;
}

.sidebar-header h1 i {
    color: #667eea;
    background: none;
    font-size: 1.8rem;
}

.new-chat-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    font-size: 1.3rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.new-chat-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.new-chat-btn:active {
    transform: translateY(-1px) scale(0.98);
}



.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
}

.conversation-item {
    padding: 18px 20px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.conversation-content {
    flex: 1;
    min-width: 0;
    padding-right: 10px;
}

.conversation-actions {
    display: flex;
    align-items: center;
}

.delete-conv-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 18px;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
    opacity: 0.6;
}

.delete-conv-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ff4444;
    opacity: 1;
}

.conversation-item:hover .delete-conv-btn {
    opacity: 1;
}

.conversation-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

.conversation-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border-right: 4px solid #667eea;
}

.conversation-title {
    font-weight: 600;
    color: white;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.95rem;
}

.conversation-time {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    color: white;
    font-size: 0.95rem;
}

.user-role {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.settings-btn {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.settings-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transform: rotate(30deg);
}

/* 主聊天区域 */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 0;
}

/* 欢迎界面 */
.welcome-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.welcome-content {
    max-width: 550px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.welcome-icon {
    font-size: 6rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-25px); }
}

.welcome-content h2 {
    font-size: 2.8rem;
    color: #333;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.welcome-content p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.7;
    font-weight: 400;
}

.start-chat-btn {
    padding: 18px 50px;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.start-chat-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.start-chat-btn:active {
    transform: translateY(-1px) scale(0.98);
}

/* 聊天界面 */
.chat-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.chat-header {
    padding: 25px 30px;
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.chat-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #333;
    letter-spacing: -0.5px;
}

.chat-actions {
    display: flex;
    gap: 12px;
}

.action-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border: none;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(245, 87, 108, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:nth-child(2) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 3px 10px rgba(79, 172, 254, 0.3);
}

.action-btn:nth-child(3) {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    box-shadow: 0 3px 10px rgba(67, 233, 123, 0.3);
}

.action-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.action-btn:active {
    transform: translateY(-1px) scale(0.98);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    /* 确保滚动条能够正确显示 */
    max-height: calc(100vh - 200px);
}

/* 滚动条样式 - 为 messages-container 专门设置 */
.messages-container::-webkit-scrollbar {
    width: 10px;
}

.messages-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 5px;
}

.messages-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #556bda 0%, #65418a 100%);
    transform: scale(1.1);
}

/* 消息样式 */
.message {
    display: flex;
    gap: 18px;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    align-items: flex-end;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.message-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.message.user .message-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.3rem;
}

.message.assistant .message-avatar {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    font-size: 1.3rem;
}

/* 消息文本框中的打字指示器 */
.message.text .typing-dots {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 18px 22px;
    margin: 0;
}

.message.text .typing-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    animation: typing 1.4s infinite;
    box-shadow: 0 2px 5px rgba(102, 126, 234, 0.3);
}

.message.text .typing-dots .dot:nth-child(1) {
    animation-delay: -0.32s;
}

.message.text .typing-dots .dot:nth-child(2) {
    animation-delay: -0.16s;
}

.message.text .typing-dots .dot:nth-child(3) {
    animation-delay: 0s;
    transform: translateY(0);
}

@keyframes typing {
    0%, 80%, 100% {
        opacity: 0;
        transform: scale(0.7);
    }
    40% {
        opacity: 1;
        transform: scale(1);
    }
}

.message-content {
    max-width: 75%;
    flex: 1;
    word-wrap: break-word;
    display: flex;
    flex-direction: column;
}

.message-content > * {
    display: block;
    width: 100%;
}

.message.text {
    padding: 18px 22px;
    border-radius: 22px;
    font-size: 1rem;
    line-height: 1.6;
    word-wrap: break-word;
    font-weight: 400;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: block;
    width: 100%;
}

.message.text * {
    display: block;
    width: 100%;
    margin: 0 0 10px 0;
    padding: 0;
}

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

.message.text p {
    margin: 0 0 10px 0;
    padding: 0;
    display: block;
    width: 100%;
}

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

.message.user .message.text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 8px;
    border-top-right-radius: 22px;
}

.message.assistant .message.text {
    background: white;
    color: #333;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-bottom-left-radius: 8px;
    border-top-left-radius: 22px;
}

.message-time {
    font-size: 0.8rem;
    color: rgba(0, 0, 0, 0.5);
    margin-top: 8px;
    text-align: right;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.message.assistant .message-time {
    text-align: left;
}

/* 输入区域 */
.input-area {
    padding: 25px 30px;
    background: white;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.input-container {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f8f9fa;
    border-radius: 35px;
    padding: 12px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.input-container:focus-within {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: white;
}

.input-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: none;
    border: none;
    color: #666;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-btn:hover {
    background: #e9ecef;
    color: #333;
    transform: scale(1.05);
}

#messageInput {
    flex: 1;
    background: transparent;
    border: none;
    padding: 14px 18px;
    font-size: 1rem;
    outline: none;
    color: #333;
    font-weight: 400;
}

#messageInput::placeholder {
    color: #999;
    font-weight: 300;
}

#sendBtn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.3rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

#sendBtn:hover {
    background: linear-gradient(135deg, #556bda 0%, #65418a 100%);
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

#sendBtn:active {
    transform: scale(0.98);
}

/* 打字指示器 */
/* 样式已移至 .message-avatar .typing-dots */

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.98) 100%);
    margin: 10% auto;
    border-radius: 20px;
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes slideUp {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 20px 20px 0 0;
}

.modal-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.close-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    padding: 0;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

.close-btn:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.modal-body {
    padding: 25px;
}

.modal-body input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    font-size: 0.95rem;
    margin-bottom: 0;
    transition: all 0.3s ease;
    background: white;
    font-weight: 400;
    height: 42px;
}

.modal-body input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

.modal-body input::placeholder {
    color: #999;
    font-weight: 300;
}

/* 表单组样式 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

/* 按钮样式扩展 */
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: none;
    letter-spacing: 0.3px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
    height: auto;
    line-height: 1.4;
}

.btn.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn.secondary {
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
    color: #64748b;
}

.btn.secondary:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    color: #475569;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 0 0 20px 20px;
    flex-wrap: wrap;
    align-items: center;
}

.cancel-btn, .confirm-btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.cancel-btn {
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
    color: #64748b;
    border: 2px solid transparent;
}

.cancel-btn:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    color: #475569;
}

.confirm-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: 2px solid transparent;
}

.confirm-btn:hover {
    background: linear-gradient(135deg, #556bda 0%, #65418a 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.confirm-btn.danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.confirm-btn.danger:hover {
    background: linear-gradient(135deg, #ee5a52 0%, #c0392b 100%);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
    transform: translateY(-2px);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #556bda 0%, #65418a 100%);
    transform: scale(1.1);
}

/* 侧边栏滚动条 */
.sidebar ::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar ::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.5) 0%, rgba(118, 75, 162, 0.5) 100%);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.sidebar ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.7) 0%, rgba(118, 75, 162, 0.7) 100%);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: absolute;
        z-index: 100;
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .chat-main {
        width: 100%;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .chat-header {
        padding: 15px 20px;
    }
    
    .messages-container {
        padding: 15px 20px;
    }
    
    .input-area {
        padding: 15px 20px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}