/* 化则智核 · 对话页样式 */

.chat-layout {
    display: flex;
    height: 100%;
    overflow: hidden;
}

/* 左侧会话列表 */
.conv-sidebar {
    width: 260px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border-main);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.conv-sidebar-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.conv-sidebar-header h3 {
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
}

.conv-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.conv-item {
    padding: 10px 16px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.15s;
}

.conv-item:hover {
    background: var(--bg-panel-hover);
}

.conv-item.active {
    background: var(--bg-panel-hover);
    border-left-color: var(--accent);
}

.conv-item .conv-title {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conv-item .conv-meta {
    font-size: 11px;
    color: var(--text-weak);
    display: flex;
    justify-content: space-between;
}

/* 右侧消息区 */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.chat-header {
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-panel);
    flex-shrink: 0;
}

.chat-header h2 {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.chat-header .chat-actions {
    display: flex;
    gap: 8px;
}

/* 消息流 */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-panel);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    border: 1px solid var(--border-main);
    user-select: none;
}

.message-body {
    flex: 1;
    min-width: 0;
}

.message-header {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.message-user .message-header {
    text-align: right;
}

.message-text {
    padding: 12px 16px;
    background: var(--bg-panel);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    font-size: 14px;
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

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

.message-text.streaming::after {
    content: '▋';
    animation: blink 1s infinite;
    color: var(--accent);
    margin-left: 2px;
}

@keyframes blink {
    50% { opacity: 0; }
}

.message-meta {
    font-size: 11px;
    color: var(--text-weak);
    margin-top: 6px;
    font-family: var(--font-mono);
}

/* Markdown 内容 */
.message-text h1, .message-text h2, .message-text h3 {
    margin: 16px 0 8px;
    color: var(--text-primary);
    font-weight: 600;
}

.message-text h1 { font-size: 18px; }
.message-text h2 { font-size: 16px; }
.message-text h3 { font-size: 15px; }

.message-text p { margin: 8px 0; }

.message-text ul, .message-text ol {
    margin: 8px 0;
    padding-left: 24px;
}

.message-text li { margin: 4px 0; }

.message-text code {
    background: var(--bg-code);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #d4b87e;
}

.message-text pre {
    background: var(--bg-code);
    padding: 14px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 12px 0;
    border: 1px solid var(--border-main);
    position: relative;
}

.message-text pre code {
    background: none;
    padding: 0;
    color: #b0b0c0;
    font-size: 12px;
    line-height: 1.6;
    display: block;
    white-space: pre;
}

.message-text pre .copy-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    padding: 3px 8px;
    font-size: 11px;
    background: var(--bg-panel-hover);
    color: var(--text-secondary);
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s;
}

.message-text pre:hover .copy-btn {
    opacity: 1;
}

.message-text pre .copy-btn:hover {
    background: var(--accent);
    color: #1a1a1c;
}

.message-text table {
    border-collapse: collapse;
    margin: 12px 0;
    width: 100%;
    font-size: 13px;
}

.message-text th, .message-text td {
    border: 1px solid var(--border-main);
    padding: 8px 10px;
    text-align: left;
}

.message-text th {
    background: var(--bg-panel-hover);
    color: var(--accent);
}

.message-text blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 12px;
    margin: 12px 0;
    color: var(--text-secondary);
}

/* 输入区 */
.chat-input {
    padding: 16px 32px 20px;
    border-top: 1px solid var(--border-main);
    background: var(--bg-panel);
    flex-shrink: 0;
}

.chat-input-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.chat-input textarea {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: none;
    outline: none;
    line-height: 1.6;
    max-height: 200px;
    min-height: 44px;
    transition: border-color 0.15s;
}

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

.chat-input-btn {
    padding: 12px 24px;
    background: var(--accent);
    color: #1a1a1c;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.15s;
    white-space: nowrap;
}

.chat-input-btn:hover {
    background: var(--accent-hover);
}

.chat-input-btn:disabled {
    background: var(--border-main);
    color: var(--text-weak);
    cursor: not-allowed;
}

/* 引用展示 */
.context-refs {
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.context-refs summary {
    cursor: pointer;
    padding: 4px 8px;
    background: var(--bg-panel-hover);
    border-radius: 4px;
    display: inline-block;
}

.context-refs ul {
    margin-top: 6px;
    padding-left: 20px;
}

/* ========== 会话项：更多按钮 ========== */
.conv-item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.conv-item-content {
    flex: 1;
    min-width: 0;
}

.conv-item-more {
    display: none;
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1;
    padding: 0;
    cursor: pointer;
    flex-shrink: 0;
    margin-left: 6px;
    align-items: center;
    justify-content: center;
}

.conv-item:hover .conv-item-more {
    display: flex;
}

.conv-item-more:hover {
    background: var(--border-hover);
    color: var(--text-primary);
}

/* ========== 会话菜单（浮动） ========== */
.conv-menu {
    position: fixed;
    z-index: 9000;
    min-width: 130px;
    background: var(--bg-panel);
    border: 1px solid var(--border-main);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    padding: 4px;
    animation: conv-menu-in 0.12s ease-out;
}

@keyframes conv-menu-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.conv-menu-item {
    padding: 8px 12px;
    font-size: 13px;
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.12s;
    white-space: nowrap;
}

.conv-menu-item:hover {
    background: var(--bg-panel-hover);
    color: var(--accent);
}

.conv-menu-item[data-action="delete"]:hover {
    color: var(--error);
}

/* ========== 顶栏导出按钮 ========== */
.chat-header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}