/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: #1d1d1f;
    line-height: 1.6;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 30px;
    animation: fadeInDown 1s ease-out;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo-icon {
    animation: rotate 10s linear infinite;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #007AFF 0%, #34C759 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    color: #6e6e73;
}

/* 角色选择样式 */
.role-selection {
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.role-container {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.role-container h3 {
    text-align: center;
    font-size: 1.3rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 20px;
}

.role-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.role-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(0, 122, 255, 0.2);
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 100px;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.role-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.role-btn:hover::before {
    left: 100%;
}

.role-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 122, 255, 0.2);
    border-color: rgba(0, 122, 255, 0.4);
}

.role-btn.active {
    background: linear-gradient(135deg, #007AFF 0%, #34C759 100%);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 122, 255, 0.3);
}

.role-btn.active .role-name {
    color: white;
    font-weight: 600;
}

.role-icon {
    font-size: 1.8rem;
    transition: transform 0.3s ease;
}

.role-btn:hover .role-icon {
    transform: scale(1.1);
}

.role-btn.active .role-icon {
    transform: scale(1.1);
}

.role-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: #1d1d1f;
    transition: color 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .role-buttons {
        gap: 10px;
    }
    
    .role-btn {
        min-width: 80px;
        padding: 12px 15px;
    }
    
    .role-icon {
        font-size: 1.5rem;
    }
    
    .role-name {
        font-size: 0.8rem;
    }
}

/* API配置区域 */
.config-section {
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.config-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.config-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.config-card h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #1d1d1f;
    font-weight: 600;
}

.api-config {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.api-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.api-item label {
    font-weight: 500;
    color: #424245;
    font-size: 0.9rem;
}

.api-item input {
    padding: 12px 16px;
    border: 2px solid rgba(0, 122, 255, 0.1);
    border-radius: 12px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.api-item input:focus {
    outline: none;
    border-color: #007AFF;
    background: rgba(255, 255, 255, 1);
    transform: scale(1.02);
}

/* 聊天区域 */
.chat-section {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.input-container {
    margin-bottom: 30px;
}

.input-wrapper {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.input-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

#question-input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid rgba(0, 122, 255, 0.1);
    border-radius: 15px;
    font-size: 1.1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#question-input:focus {
    outline: none;
    border-color: #007AFF;
    background: rgba(255, 255, 255, 1);
    transform: scale(1.01);
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    justify-content: center;
}

.primary-btn, .secondary-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.primary-btn {
    background: linear-gradient(135deg, #007AFF 0%, #007AFF 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.3);
}

.primary-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 122, 255, 0.4);
}

.primary-btn:active {
    transform: translateY(0) scale(1.02);
}

.secondary-btn {
    background: linear-gradient(135deg, #34C759 0%, #34C759 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(52, 199, 89, 0.3);
}

.secondary-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 30px rgba(52, 199, 89, 0.4);
}

.secondary-btn:active {
    transform: translateY(0) scale(1.02);
}

/* 响应面板 */
.responses-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    min-height: 500px;
}

.response-panel {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.response-panel:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.15);
}

.left-panel {
    border-left: 4px solid #007AFF;
}

.right-panel {
    border-left: 4px solid #34C759;
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 25px;
    background: rgba(255, 255, 255, 0.5);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.panel-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1d1d1f;
}

.model-name {
    background: rgba(0, 122, 255, 0.1);
    color: #007AFF;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-left: auto;
}

.right-panel .model-name {
    background: rgba(52, 199, 89, 0.1);
    color: #34C759;
}

.chat-history {
    padding: 25px;
    max-height: 450px;
    overflow-y: auto;
    scroll-behavior: smooth;
}

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

.chat-history::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
}

.chat-history::-webkit-scrollbar-thumb {
    background: rgba(0, 122, 255, 0.3);
    border-radius: 3px;
}

.chat-history::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 122, 255, 0.5);
}

.welcome-message {
    text-align: center;
    color: #6e6e73;
    font-style: italic;
    padding: 40px 20px;
}

.message {
    margin-bottom: 20px;
    animation: messageSlideIn 0.5s ease-out;
}

.user-message {
    background: linear-gradient(135deg, #007AFF 0%, #007AFF 100%);
    color: white;
    padding: 15px 20px;
    border-radius: 20px 20px 5px 20px;
    margin-left: 20%;
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.2);
}

.ai-message {
    background: rgba(0, 0, 0, 0.05);
    color: #1d1d1f;
    padding: 15px 20px;
    border-radius: 20px 20px 20px 5px;
    margin-right: 20%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.right-panel .ai-message {
    background: rgba(52, 199, 89, 0.1);
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 20px 20px 20px 5px;
    margin-right: 20%;
    animation: pulse 1.5s ease-in-out infinite;
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #007AFF;
    border-radius: 50%;
    animation: typingDot 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

.right-panel .typing-dot {
    background: #34C759;
}

/* 加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 1000;
}

.loading-overlay.show {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid #007AFF;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-ring:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
    border-top-color: #34C759;
    animation-duration: 1.5s;
    animation-direction: reverse;
}

.spinner-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 20px;
    left: 20px;
    border-top-color: #FF9500;
    animation-duration: 2s;
}

.loading-overlay p {
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

/* 动画定义 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes typingDot {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .api-config {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .responses-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .button-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .user-message, .ai-message {
        margin-left: 0;
        margin-right: 0;
    }
    
    .logo-container {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .config-card, .input-wrapper, .response-panel {
        padding: 20px;
    }
    
    .panel-header {
        padding: 15px 20px;
    }
    
    .chat-history {
        padding: 20px;
    }
}