/* AI聊天窗口样式 */
.ai-chat-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    transition: opacity 0.3s ease;
}

.ai-chat-overlay.hidden {
    display: none;
}

.ai-floating-btn {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    color: white;
    border: none;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--shadow);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-floating-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 30px var(--shadow);
}

.ai-floating-btn.active {
    background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-color) 100%);
}

.ai-chat-window {
    position: fixed;
    right: 30px;
    bottom: 110px;
    width: 420px;
    max-width: calc(100vw - 60px);
    height: 600px;
    max-height: calc(100vh - 140px);
    background: var(--container-bg);
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.ai-chat-window.hidden {
    display: none;
}

.ai-chat-window.minimized {
    height: 60px;
    overflow: hidden;
}

.ai-chat-header {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    color: white;
    padding: 16px 20px;
    border-radius: 16px 16px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

.ai-chat-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.05em;
}

.ai-icon {
    font-size: 1.3em;
}

.ai-chat-controls {
    display: flex;
    gap: 8px;
}

.ai-chat-controls button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-chat-controls button:hover {
    background: rgba(255, 255, 255, 0.3);
}

.ai-chat-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.ai-context-bar {
    background: var(--hover-bg);
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9em;
    color: var(--text-secondary);
}

.ai-context-icon {
    font-size: 1.1em;
}

.ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ai-message {
    display: flex;
    gap: 10px;
    animation: slideIn 0.3s ease;
}

.ai-message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--hover-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.ai-message-user .ai-message-avatar {
    background: var(--hover-bg);
}

.ai-message-content {
    flex: 1;
    background: var(--hover-bg);
    padding: 12px 14px;
    border-radius: 12px;
    line-height: 1.6;
    font-size: 0.95em;
    color: var(--text-color);
}

.ai-message-user .ai-message-content {
    background: var(--hover-bg);
    color: var(--text-color);
}

.ai-message-system .ai-message-content {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
}

.ai-message-error .ai-message-content {
    background: #fee;
    border: 1px solid #fcc;
    color: #c33;
}

.ai-message-content p {
    margin-bottom: 8px;
}

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

.ai-message-content ul {
    margin: 8px 0;
    padding-left: 20px;
}

.ai-message-content li {
    margin-bottom: 4px;
}

.ai-typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.ai-typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

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

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

.ai-input-area {
    border-top: 1px solid var(--border-color);
    padding: 12px;
    background: var(--hover-bg);
}

.ai-input {
    width: 100%;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.95em;
    font-family: inherit;
    resize: none;
    transition: all 0.2s;
    margin-bottom: 8px;
    background: var(--container-bg);
    color: var(--text-color);
}

.ai-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--hover-bg);
}

.ai-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.ai-input-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.ai-tool-buttons {
    display: flex;
    gap: 6px;
}

.ai-action-buttons {
    display: flex;
    gap: 8px;
}

.ai-voice-btn,
.ai-tts-btn {
    background: var(--container-bg);
    border: 2px solid var(--border-color);
    color: var(--accent-color);
    width: 36px;
    height: 36px;
    border-radius: 6px;
    font-size: 1.2em;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-voice-btn:hover,
.ai-tts-btn:hover {
    border-color: var(--accent-color);
    background: var(--hover-bg);
    transform: scale(1.05);
}

.ai-voice-btn.recording {
    background: #ff4d4f;
    border-color: #ff4d4f;
    color: white;
    animation: pulse 1s infinite;
}

.ai-clear-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.2s;
}

.ai-clear-btn:hover {
    border-color: #ff6b6b;
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.1);
}

.ai-send-btn {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    border: none;
    color: white;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 0.95em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.ai-send-icon {
    font-size: 1.1em;
}

/* AI助手信息框 */
#ai-helper {
    background: var(--hover-bg);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    box-shadow: 0 2px 8px var(--shadow);
}

#ai-helper h3 {
    color: var(--accent-color);
    font-size: 1.05em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

#ai-helper p {
    color: var(--text-secondary);
    font-size: 0.95em;
    margin-bottom: 12px;
}

.ai-button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ai-button-group button {
    background: var(--container-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.85em;
    color: var(--text-secondary);
    cursor: not-allowed;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-button-group button:not(:disabled) {
    border-color: var(--accent-color);
    color: var(--accent-color);
    cursor: pointer;
}

.ai-button-group button:not(:disabled):hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

#next-suggestion {
    padding: 10px;
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    border-radius: 4px;
    font-size: 0.9em;
}

#next-suggestion a {
    color: #fa8c16;
    font-weight: 600;
    text-decoration: none;
}

#next-suggestion a:hover {
    text-decoration: underline;
}

/* 暗色模式调整 */
[data-theme="dark"] .ai-chat-window {
    background: var(--container-bg);
}

[data-theme="dark"] .ai-context-bar {
    background: var(--hover-bg);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

[data-theme="dark"] .ai-message-content {
    background: var(--hover-bg);
    color: var(--text-color);
}

[data-theme="dark"] .ai-input-area {
    background: var(--hover-bg);
}

[data-theme="dark"] .ai-input {
    background: var(--container-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .ai-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

[data-theme="dark"] .ai-input:focus {
    background: var(--hover-bg);
    border-color: var(--accent-color);
}

[data-theme="dark"] .ai-message-system .ai-message-content {
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid rgba(255, 193, 7, 0.3);
    color: var(--text-color);
}

[data-theme="dark"] .ai-message-error .ai-message-content {
    background: rgba(255, 68, 68, 0.15);
    border: 1px solid rgba(255, 68, 68, 0.3);
    color: #ff9999;
}

[data-theme="dark"] .ai-voice-btn,
[data-theme="dark"] .ai-tts-btn {
    background: var(--hover-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .ai-voice-btn:hover,
[data-theme="dark"] .ai-tts-btn:hover {
    background: var(--container-bg);
    border-color: var(--accent-color);
}