:root {
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --text-primary: #f1f1f4;
    --text-secondary: #8b8b9e;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

/* 背景动画 */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 800px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-y: auto;
}

/* 头部 */
header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2rem;
    font-weight: 500;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.arch-link {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.arch-link:hover {
    opacity: 0.8;
}

/* 配置区域 */
.config-section {
    background: var(--bg-card);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.config-section.hidden {
    display: none;
}

.config-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.config-group {
    margin-bottom: 1rem;
}

.config-label {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.config-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: monospace;
}

.config-input:focus {
    outline: none;
    border-color: var(--accent);
}

.config-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.config-btn {
    width: 100%;
    padding: 0.85rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.config-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.config-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.config-hint {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.config-hint a {
    color: var(--accent);
    text-decoration: none;
}

.config-hint a:hover {
    text-decoration: underline;
}

/* 已连接信息 */
.connected-bar {
    display: none;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.connected-bar.show {
    display: flex;
}

.connected-bar .info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.connected-bar .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.disconnect-btn {
    padding: 0.4rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.4rem;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.disconnect-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* 状态指示器 */
.status-bar {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border-radius: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.status-bar.show {
    display: flex;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    transition: all 0.3s ease;
}

.status-dot.connected {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-dot.speaking {
    background: var(--warning);
    box-shadow: 0 0 10px var(--warning);
    animation: pulse 1s ease infinite;
}

.status-dot.error {
    background: var(--danger);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

.status-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 对话区域 */
.chat-area {
    display: none;
    height: 400px;
    flex-shrink: 0;
    background: var(--bg-card);
    border-radius: 1.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow-y: auto;
}

.chat-area.show {
    display: block;
}

.message {
    margin-bottom: 1rem;
    animation: slideIn 0.3s ease;
}

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

.message-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    line-height: 1.6;
}

.message.user .message-content {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.message.ai .message-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.message.ai .message-content.streaming::after {
    content: '\25cb';
    animation: blink 0.8s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 控制区域 */
.controls {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    padding-bottom: 1rem;
}

.controls.show {
    display: flex;
}

/* 麦克风按钮 */
.mic-button {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px var(--accent-glow);
    position: relative;
}

.mic-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 40px var(--accent-glow);
}

.mic-button:active {
    transform: scale(0.98);
}

.mic-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.mic-button.recording {
    animation: recording-pulse 1.5s ease infinite;
}

@keyframes recording-pulse {
    0%, 100% { box-shadow: 0 4px 30px var(--accent-glow); }
    50% { box-shadow: 0 4px 60px rgba(239, 68, 68, 0.5); }
}

.mic-button.recording::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    border: 2px solid var(--danger);
    animation: ripple 1.5s ease infinite;
}

@keyframes ripple {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.mic-icon {
    width: 36px;
    height: 36px;
    fill: white;
}

/* 波形可视化 */
.visualizer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    height: 40px;
}

.visualizer-bar {
    width: 4px;
    height: 10px;
    background: var(--accent);
    border-radius: 2px;
    transition: height 0.1s ease;
}

.visualizer.active .visualizer-bar {
    animation: wave 0.5s ease infinite;
}

.visualizer-bar:nth-child(1) { animation-delay: 0s; }
.visualizer-bar:nth-child(2) { animation-delay: 0.1s; }
.visualizer-bar:nth-child(3) { animation-delay: 0.2s; }
.visualizer-bar:nth-child(4) { animation-delay: 0.3s; }
.visualizer-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes wave {
    0%, 100% { height: 10px; }
    50% { height: 30px; }
}

/* 提示文字 */
.hint {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-align: center;
}

/* 文字输入区域 */
.text-input-area {
    display: flex;
    gap: 0.75rem;
    width: 100%;
    max-width: 600px;
    margin-top: 1rem;
}

.text-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.text-input:focus {
    border-color: var(--accent);
}

.text-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.send-btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    color: white;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* 用户ID显示 */
.user-id-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
    margin-top: 1rem;
    font-size: 0.75rem;
}

.user-id-bar .label {
    color: var(--text-secondary);
}

.user-id-bar .id {
    color: var(--accent);
    font-family: monospace;
    font-size: 0.7rem;
}

.reset-id-btn {
    padding: 0.25rem 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.25rem;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s;
}

.reset-id-btn:hover {
    border-color: var(--warning);
    color: var(--warning);
}

/* 拍照模态框 */
.camera-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.camera-modal.show {
    display: flex;
}

.camera-modal video {
    max-width: 90%;
    max-height: 60vh;
    border-radius: 1rem;
    background: #000;
}

.camera-modal canvas {
    display: none;
}

.camera-hint {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.9rem;
}

.camera-btn {
    margin-top: 1.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.camera-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.camera-btn.cancel {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-left: 1rem;
}

.camera-btn.cancel:hover {
    border-color: var(--danger);
    color: var(--danger);
}

.camera-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Realtime 模式 - 监听状态 */
.mic-button.listening {
    background: linear-gradient(135deg, var(--success) 0%, #16a34a 100%);
    box-shadow: 0 4px 30px rgba(34, 197, 94, 0.4);
    animation: listening-pulse 2s ease infinite;
}

.mic-button.listening::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    border: 2px solid var(--success);
    animation: ripple 2s ease infinite;
}

@keyframes listening-pulse {
    0%, 100% { box-shadow: 0 4px 30px rgba(34, 197, 94, 0.4); }
    50% { box-shadow: 0 4px 50px rgba(34, 197, 94, 0.6); }
}

/* 模式选择下拉框样式 */
select.config-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b8b9e' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

select.config-input option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.mode-hint {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    line-height: 1.6;
}

.mode-hint strong {
    color: var(--accent);
}

/* 错误提示 */
.error-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--danger);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    display: none;
    animation: slideUp 0.3s ease;
    z-index: 100;
}

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

/* 交互方式切换按钮 */
.interaction-toggle {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.25rem;
    border-radius: 0.5rem;
}

.interaction-toggle .toggle-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.4rem;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.interaction-toggle .toggle-btn:hover {
    color: var(--text-primary);
}

.interaction-toggle .toggle-btn.active {
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 2px 10px var(--accent-glow);
}

/* 高级配置面板 */
.advanced-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color 0.2s;
}

.advanced-toggle:hover {
    color: var(--text-primary);
}

.advanced-toggle .toggle-icon {
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.advanced-toggle.open .toggle-icon {
    transform: rotate(90deg);
}

.advanced-panel {
    display: none;
    padding: 1rem;
    margin-top: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.advanced-panel.show {
    display: block;
}

.advanced-panel .config-group {
    margin-bottom: 1rem;
}

.advanced-panel .config-group:last-child {
    margin-bottom: 0;
}

.tech-hint {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    line-height: 1.6;
}

.tech-hint strong {
    color: var(--accent);
}

/* 响应式 */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    .mic-button {
        width: 80px;
        height: 80px;
    }

    .interaction-toggle .toggle-btn {
        padding: 0.6rem 0.75rem;
        font-size: 0.85rem;
    }
}