/* ── AI 助手「小E」浮动聊天控件 ── */

/* 触发按钮 — 右下角浮动气泡 */
.ai-assistant-trigger {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s ease;
}
.ai-assistant-trigger:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}
.ai-assistant-trigger:active {
    transform: scale(0.95);
}
.ai-assistant-trigger .trigger-icon {
    transition: transform 0.3s ease;
}
.ai-assistant-trigger.is-open .trigger-icon {
    transform: rotate(45deg);
}

/* 未读消息徽标 */
.ai-assistant-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #ff4757;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: badge-pulse 2s infinite;
}
@keyframes badge-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}
.ai-assistant-badge.hidden {
    display: none;
}

/* 聊天窗口 */
.ai-assistant-window {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 380px;
    height: 560px;
    max-height: calc(100vh - 140px);
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    z-index: 9998;
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slide-up 0.3s ease;
}
.ai-assistant-window.is-open {
    display: flex;
}
@keyframes slide-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 窗口头部 */
.ai-assistant-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.ai-assistant-header-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
}
.ai-assistant-header-title i {
    font-size: 20px;
}
.ai-assistant-header-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: all 0.2s;
}
.ai-assistant-header-close:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* 头部操作按钮组 */
.ai-assistant-header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}
.ai-assistant-capability-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 6px;
    transition: all 0.2s;
}
.ai-assistant-capability-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}
.ai-assistant-capability-btn.is-active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

/* 主体: 消息区 + 侧面板 */
.ai-assistant-body {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

/* 消息区域 */
.ai-assistant-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: #f8f9fb;
    min-width: 0;
    scroll-behavior: smooth;
}
.ai-assistant-messages::-webkit-scrollbar {
    width: 4px;
}
.ai-assistant-messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 2px;
}

/* 欢迎消息 — 简洁版 */
.ai-assistant-welcome {
    text-align: center;
    padding: 40px 16px 20px;
    color: #666;
}
.ai-assistant-welcome-inner i {
    font-size: 40px;
    color: #667eea;
    opacity: 0.5;
    margin-bottom: 8px;
    display: block;
}
.ai-assistant-welcome-inner h4 {
    font-size: 15px;
    color: #444;
    margin: 0 0 4px;
}
.ai-assistant-welcome-subtitle {
    font-size: 12px;
    color: #999;
    margin: 0;
}

/* 消息气泡 */
.ai-assistant-msg {
    margin-bottom: 12px;
    display: flex;
    gap: 8px;
    animation: msg-in 0.25s ease;
}
@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.ai-assistant-msg.user {
    justify-content: flex-end;
}
.ai-assistant-msg.assistant {
    justify-content: flex-start;
}

.ai-assistant-msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
.ai-assistant-msg.assistant .ai-assistant-msg-avatar {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}
.ai-assistant-msg.user .ai-assistant-msg-avatar {
    background: #e9ecef;
    color: #495057;
    order: 1;
}

.ai-assistant-msg-bubble {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 13.5px;
    line-height: 1.6;
    word-wrap: break-word;
    white-space: pre-wrap;
}
.ai-assistant-msg.assistant .ai-assistant-msg-bubble {
    background: #fff;
    color: #333;
    border: 1px solid #e8e8e8;
    border-top-left-radius: 4px;
}
.ai-assistant-msg.user .ai-assistant-msg-bubble {
    background: #667eea;
    color: #fff;
    border-top-right-radius: 4px;
}

/* Markdown 渲染样式 */
.ai-assistant-msg-bubble strong {
    font-weight: 600;
}
.ai-assistant-msg-bubble code {
    background: #f0f0f0;
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 12px;
}
.ai-assistant-msg-bubble ul, .ai-assistant-msg-bubble ol {
    margin: 4px 0;
    padding-left: 18px;
}
.ai-assistant-msg-bubble hr {
    margin: 8px 0;
    border: none;
    border-top: 1px solid #eee;
}

/* 建议问题标签 */
.ai-assistant-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 8px 0 4px 40px;
}
.ai-assistant-suggestion-chip {
    background: #f0f0ff;
    color: #667eea;
    border: 1px solid #d0d0ff;
    border-radius: 16px;
    padding: 4px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}
.ai-assistant-suggestion-chip:hover {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

/* 输入区域 */
.ai-assistant-input-area {
    padding: 12px 16px;
    border-top: 1px solid #eee;
    background: #fff;
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    align-items: flex-end;
}
.ai-assistant-file-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #f5f5f5;
    color: #888;
    border: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 15px;
    flex-shrink: 0;
    transition: all 0.2s;
}
.ai-assistant-file-btn:hover {
    background: #e8e8ff;
    color: #667eea;
    border-color: #667eea;
}

/* 文件预览栏（上传后显示在输入框上方） */
.ai-assistant-file-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px 16px 0;
    background: #fff;
    border-top: 1px solid #eee;
}
.ai-assistant-file-preview-item {
    display: flex;
    align-items: center;
    gap: 4px;
    background: #f0f0ff;
    border: 1px solid #d0d0ff;
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 11px;
    color: #667eea;
    max-width: 160px;
}
.ai-assistant-file-preview-item .file-icon {
    font-size: 14px;
}
.ai-assistant-file-preview-item .file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.ai-assistant-file-preview-item .file-remove {
    cursor: pointer;
    color: #999;
    font-size: 12px;
    margin-left: 2px;
}
.ai-assistant-file-preview-item .file-remove:hover {
    color: #ef4444;
}
.ai-assistant-file-preview-item.image-preview {
    padding: 2px;
}
.ai-assistant-file-preview-item.image-preview img {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: 4px;
}
.ai-assistant-input {
    flex: 1;
    border: 1px solid #ddd;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 13.5px;
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}
.ai-assistant-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.15);
}
.ai-assistant-send {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #667eea;
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
    flex-shrink: 0;
}
.ai-assistant-send:hover {
    background: #5a6fd6;
}
.ai-assistant-send:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* 输入中动画 */
.ai-assistant-typing {
    display: flex;
    gap: 4px;
    padding: 8px 0;
    align-items: center;
}
.ai-assistant-typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ccc;
    animation: typing-bounce 1.4s infinite ease-in-out both;
}
.ai-assistant-typing-dot:nth-child(1) { animation-delay: -0.32s; }
.ai-assistant-typing-dot:nth-child(2) { animation-delay: -0.16s; }
.ai-assistant-typing-dot:nth-child(3) { animation-delay: 0s; }
@keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0.6); background: #ccc; }
    40% { transform: scale(1); background: #667eea; }
}

/* 响应式 — 移动端全屏 */
@media (max-width: 480px) {
    .ai-assistant-trigger {
        bottom: 76px;  /* 避开底部导航 */
        right: 16px;
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    .ai-assistant-window {
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
}

/* ── 主动情报面板 ── */
.ai-assistant-proactive {
    margin-bottom: 12px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    overflow: hidden;
    animation: msg-in 0.3s ease;
}
.ai-assistant-proactive-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ai-assistant-proactive-header i {
    font-size: 14px;
}
.ai-assistant-proactive-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 14px;
    border-bottom: 1px solid #f5f5f5;
    transition: background 0.15s;
}
.ai-assistant-proactive-item:last-child {
    border-bottom: none;
}
.ai-assistant-proactive-item:hover {
    background: #f8f9fb;
}
.proactive-icon {
    font-size: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}
.proactive-content {
    flex: 1;
    min-width: 0;
}
.proactive-title {
    font-size: 13px;
    font-weight: 600;
    color: #333;
}
.proactive-detail {
    font-size: 12px;
    color: #888;
    margin-top: 2px;
}

/* ── 能力清单卡片 ── */
.ai-assistant-welcome-header {
    padding: 16px 16px 8px;
    text-align: center;
}
.ai-assistant-welcome-header i {
    font-size: 40px;
    color: #667eea;
    opacity: 0.6;
    margin-bottom: 8px;
}
.ai-assistant-welcome-header h4 {
    font-size: 16px;
    color: #444;
    margin: 0 0 4px;
}
.ai-assistant-welcome-subtitle {
    font-size: 12px;
    color: #999;
    margin: 0;
}

.ai-capability-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 8px 12px;
}

.ai-capability-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}
.ai-capability-card:hover {
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
    transform: translateY(-1px);
}
.ai-capability-card-disabled {
    cursor: default;
    opacity: 0.7;
}
.ai-capability-card-disabled:hover {
    border-color: #eee;
    box-shadow: none;
    transform: none;
}

/* ── 能力侧面板 ── */
.ai-assistant-sidebar {
    width: 0;
    overflow: hidden;
    background: #fff;
    border-left: 1px solid #eee;
    transition: width 0.3s ease;
    flex-shrink: 0;
}
.ai-assistant-sidebar.is-open {
    width: 320px;
    overflow-y: auto;
}
.ai-sidebar-scroll {
    padding: 12px;
    width: 320px;
}
.ai-sidebar-title {
    font-size: 14px;
    font-weight: 600;
    color: #444;
    padding: 8px 4px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 10px;
}
.ai-assistant-sidebar .ai-capability-card {
    margin-bottom: 8px;
}

.ai-capability-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    margin-bottom: 6px;
}

.ai-capability-title {
    font-size: 12px;
    font-weight: 600;
    color: #333;
    margin-bottom: 2px;
}

.ai-capability-desc {
    font-size: 10.5px;
    color: #999;
    margin-bottom: 6px;
    line-height: 1.3;
}

.ai-capability-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.ai-capability-example {
    background: #f0f0ff;
    color: #667eea;
    border: 1px solid #d0d0ff;
    border-radius: 10px;
    padding: 2px 8px;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s;
}
.ai-capability-example:hover {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

.ai-capability-disabled-badge {
    background: #f5f5f5;
    color: #bbb;
    border-radius: 10px;
    padding: 2px 8px;
    font-size: 10px;
}

.ai-assistant-welcome-footer {
    padding: 6px 16px 14px;
    text-align: center;
    font-size: 11px;
    color: #aaa;
}
.ai-assistant-welcome-footer i {
    font-size: 12px;
    margin-right: 4px;
}

/* ── 消息内的文件/图片显示 ────────────────────────── */
.ai-assistant-msg-files {
    margin-bottom: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.ai-assistant-msg-file {
    font-size: 11px;
    color: #666;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.ai-assistant-msg-image {
    max-width: 180px;
    max-height: 180px;
    border-radius: 6px;
    border: 1px solid #ddd;
    display: block;
    margin-bottom: 4px;
}
.ai-assistant-msg.user .ai-assistant-msg-image {
    border-color: rgba(255,255,255,0.3);
}
.file-name-inline {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── AI图表容器 ── */
.ai-assistant-chart-container {
    margin: 12px 0 4px 0;
    padding: 12px;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    transition: box-shadow 0.2s ease;
}
.ai-assistant-chart-container:hover {
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
}
.ai-assistant-chart-container .chart-title {
    font-size: 13px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    text-align: center;
}
.ai-assistant-chart-container canvas {
    width: 100% !important;
    height: 180px !important;
}