/*
 * 系统设置抽屉样式。
 *
 * 前身是 css/settings.css（独立页面 settings.html 用的整页样式）。搬进 index.html 后
 * 原文件里的三段全局规则**必须全部去掉**，否则会污染主应用：
 *   - `*{…transition: background-color/color/border-color .2s}` 会给全站每个元素加上颜色过渡；
 *   - `:root` / `[data-theme="dark"]` 的一整套蓝灰变量会顶掉 css/reading-theme.css 的纸感主题；
 *   - `html` / `body`（含 `[data-theme="dark"] body{…!important}`）会改主应用底色。
 * 所以这里的每一条都收在 `.settings-drawer` 作用域内。
 *
 * 顶部标题栏与内容区**不在这个文件里**：抽屉直接复用 css/editor.css 的
 * `.editor-header` / `.editor-header-content` / `.editor-title` / `.editor-back-btn` /
 * `.editor-close-btn` / `.editor-body`，规格与主题覆盖跟「新增知识库」抽屉共用一份。
 */

/* ===== 抽屉骨架 ===== */

/*
 * 遮罩与抽屉的几何、开合节奏逐条对齐 .editor-overlay / .editor-panel（css/editor.css）。
 *
 * 类名却**不能**跟着叫 .editor-overlay：EditorManager.closeEditor() 会
 * `document.querySelectorAll('.editor-overlay')` 无差别摘掉页面上所有编辑器遮罩，
 * 顶着那个类名的抽屉会被「关一次编辑器」连带删掉。
 */
.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--kb-scrim-bg);
    backdrop-filter: blur(var(--kb-scrim-blur));
    -webkit-backdrop-filter: blur(var(--kb-scrim-blur));
    /* 与 .editor-overlay 同层：两者不会同时出现，上面还留着 .tags-dialog-overlay 与 .message */
    z-index: 2200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.settings-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    max-width: none;
    height: 100dvh;
    background: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-lg);
    font-family: var(--font-family-content, 'Noto Serif SC', 'Noto Serif CJK SC', 'Source Han Serif SC', 'Source Han Serif CN', 'Songti SC', 'STSong', 'SimSun', Georgia, 'Times New Roman', serif);
    color: var(--text-primary);

    /*
     * --text-tertiary 全项目只有旧的 css/settings.css 定义过，主应用的
     * variables.css / reading-theme.css 里都没有。不在这儿补一条，
     * 用到它的箭头图标、提示文字会全部退回浏览器默认色。
     * 挂在抽屉上而不是 :root，免得又变成一个全局变量。
     */
    --text-tertiary: var(--text-muted, #94a3b8);
}

/* 移动端全屏，不留左边框 */
@media (max-width: 1023px) {
    .settings-drawer {
        width: 100%;
        max-width: 100%;
        border-left: none !important;
    }
}

/* ===== 设置卡片 ===== */

.settings-drawer .settings-card {
    background-color: var(--bg-primary);
    border-radius: 0.5rem;
    overflow: hidden;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.settings-drawer .setting-item {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
    transition: all 0.2s ease;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    user-select: none;
}

/* 最后一个设置项不需要底部边框 */
.settings-drawer .setting-item:last-child {
    border-bottom: none;
}

.settings-drawer .setting-item:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--bg-secondary);
}

.settings-drawer .setting-item:active {
    background-color: var(--bg-tertiary);
}

.settings-drawer .setting-item:focus {
    outline: 2px solid var(--focus-color, #3b82f6);
    outline-offset: 2px;
}

.settings-drawer .setting-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.settings-drawer .setting-item.success {
    background-color: var(--success-bg, #f0fdf4);
    border-color: var(--success-border, #bbf7d0);
}

[data-theme="dark"] .settings-drawer .setting-item.success {
    background-color: var(--success-bg, #064e3b);
    border-color: var(--success-border, #047857);
}

.settings-drawer .setting-item.error {
    background-color: var(--error-bg, #fef2f2);
    border-color: var(--error-border, #fecaca);
}

[data-theme="dark"] .settings-drawer .setting-item.error {
    background-color: var(--error-bg, #7f1d1d);
    border-color: var(--error-border, #dc2626);
}

.settings-drawer .settings-card {
    transition: all 0.2s ease;
}

/* 设置图标 */
.settings-drawer .setting-icon {
    font-size: 1.25rem; /* 统一使用font-size控制图标大小 */
    margin-right: 1.25rem; /* 增加右侧间距 */
    color: var(--text-secondary);
    flex-shrink: 0;
    display: flex; /* 确保图标垂直居中 */
    align-items: center;
    justify-content: center;
}

.settings-drawer .setting-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* 右侧内容容器 */
.settings-drawer .right-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-drawer .setting-value {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: right;
    white-space: nowrap;
}

.settings-drawer .font-setting-item {
    cursor: default;
}

.settings-drawer .font-setting-item:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--bg-primary);
}

.settings-drawer .font-preference-select {
    min-width: 8.5rem;
    height: 2.5rem;
    padding: 0 2.25rem 0 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family-content, inherit);
    font-size: 0.9375rem;
    line-height: 1.2;
    outline: none;
    cursor: pointer;
}

.settings-drawer .font-preference-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 18%, transparent);
}

.settings-drawer .font-preference-select:disabled {
    cursor: wait;
    opacity: 0.65;
}

/* 箭头图标 */
.settings-drawer .arrow-icon {
    color: var(--text-tertiary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* 版本信息 */
.settings-drawer .version-info {
    text-align: center;
    padding: 1rem;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    margin-bottom: 2rem;
}

/* 加载动画。keyframes 单独起名，避免跟全站已有的四个 `spin` 抢同一个名字 */
@keyframes kb-settings-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.settings-drawer .loading {
    animation: kb-settings-spin 1s linear infinite;
}

/* 响应式：移动端收紧内边距 */
@media (max-width: 1023px) {
    .settings-drawer .setting-item {
        padding: 1rem;
    }

    .settings-drawer .setting-icon {
        margin-right: 1rem;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .settings-drawer .settings-card {
        border-width: 2px;
    }

    .settings-drawer .setting-item {
        border-bottom-width: 2px;
    }

    .settings-drawer .setting-icon,
    .settings-drawer .arrow-icon {
        font-weight: bold;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    .settings-drawer .setting-item,
    .settings-drawer .settings-card {
        transition: none;
    }

    .settings-drawer .loading {
        animation: none;
    }
}

/* ===== RAG 配置区域样式 ===== */

.settings-drawer .rag-config-header {
    cursor: pointer;
}

.settings-drawer .rag-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.settings-drawer .rag-collapse-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.settings-drawer .rag-collapse-btn:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.settings-drawer .rag-collapse-btn i {
    font-size: 1.25rem;
    transition: transform 0.2s ease;
}

.settings-drawer .rag-collapse-btn.is-open i {
    transform: rotate(180deg);
}

/* Toggle 开关 */
.settings-drawer .toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.settings-drawer .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.settings-drawer .toggle-slider {
    position: absolute;
    inset: 0;
    background-color: var(--border-color);
    border-radius: 24px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.settings-drawer .toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    top: 3px;
    background-color: #ffffff;
    border-radius: 50%;
    transition: transform 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.settings-drawer .toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.settings-drawer .toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* RAG 展开区域 */
.settings-drawer .rag-expand-area {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease;
}

.settings-drawer .rag-expand-area.open {
    max-height: 20000px;
}

/* RAG 子表单容器 */
.settings-drawer .rag-form-inner {
    padding: 0 1.25rem 1.25rem;
    border-top: 1px solid var(--border-light);
    background-color: var(--bg-secondary);
}

/* 表单字段组 */
.settings-drawer .rag-field-group {
    margin-top: 1rem;
}

.settings-drawer .rag-field-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

/* 「（可选）」后缀：编码槽位留空是有意义的默认（沿用对话模型），要让人一眼看出不必填 */
.settings-drawer .rag-label-optional {
    margin-left: 0.25rem;
    font-weight: 400;
    color: var(--text-tertiary);
}

/* 输入框 */
.settings-drawer .rag-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.15s ease;
    -webkit-appearance: none;
}

.settings-drawer .rag-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

/* 密码输入框包裹 */
.settings-drawer .rag-password-wrap {
    position: relative;
}

.settings-drawer .rag-password-wrap .rag-input {
    padding-right: 2.5rem;
}

.settings-drawer .rag-eye-btn {
    position: absolute;
    right: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
}

.settings-drawer .rag-eye-btn:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    color: var(--text-secondary);
}

/* 恢复默认链接 */
.settings-drawer .rag-restore-link {
    font-size: 0.75rem;
    color: var(--primary-color);
    cursor: pointer;
    margin-left: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.settings-drawer .rag-restore-link:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    text-decoration: underline;
}

/* 字段标签行（标签 + 操作链接） */
.settings-drawer .rag-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.375rem;
}

/* 选择框 */
.settings-drawer .rag-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2394a3b8'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.25rem;
    cursor: pointer;
}

.settings-drawer .rag-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

/* 「选择分类」标签 + 右侧「全部折叠/展开」小按钮同一行 */
.settings-drawer .rag-field-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}

.settings-drawer .rag-field-label-row .rag-field-label {
    margin-bottom: 0;
}

/* 尺寸与树里的展开箭头（.rag-tree-toggle）同一档，不用 32px 的标题栏图标按钮——放在 13px 的字段标签旁太大 */
.settings-drawer .rag-tree-collapse-all {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    min-height: 24px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.settings-drawer .rag-tree-collapse-all:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.settings-drawer .rag-tree-collapse-all[hidden] {
    display: none;
}

/* 分类多选列表 */
.settings-drawer .rag-category-list {
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
}

.settings-drawer .rag-category-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    /* padding-top/bottom 保留，padding-left 由 JS 内联 style 控制层级缩进 */
    padding-top: 0.5rem;
    padding-right: 0.75rem;
    padding-bottom: 0.5rem;
    padding-left: 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-light);
    transition: background-color 0.15s;
    box-sizing: border-box;
}

@media (any-hover: hover) {
    .settings-drawer .rag-category-item:hover:not(:where(html[data-kb-pointer="touch"] *)) {
        background-color: var(--bg-secondary);
    }
}

.settings-drawer .rag-category-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    flex-shrink: 0;
    cursor: pointer;
}

.settings-drawer .rag-category-item label {
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    flex: 1;
}

.settings-drawer .rag-category-item .rag-cat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.settings-drawer .rag-tree-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 3px;
    transition: background-color 0.15s, color 0.15s;
    font-size: 14px;
    margin-right: -2px;
}

.settings-drawer .rag-tree-toggle:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

/* 无子节点时的占位，保持对齐 */
.settings-drawer .rag-tree-toggle-placeholder {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-right: -2px;
}

/* 保存按钮 */
.settings-drawer .rag-save-btn {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: #ffffff;
    background-color: var(--primary-color);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    transition: background-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}

.settings-drawer .rag-save-btn:hover:not(:where(html[data-kb-pointer="touch"] *)) {
    background-color: var(--primary-hover);
}

.settings-drawer .rag-save-btn:active {
    opacity: 0.9;
}

.settings-drawer .rag-save-btn:disabled {
    opacity: 1;
    cursor: not-allowed;
}

/* ===== AI 智能检索：模型提供方列表 & 模型槽位 =====
 *
 * 提供方卡片照抄下面剪藏设备卡片的骨架（边框带兜底值的理由见 .clipper-item）。
 * 槽位一行三件：提供方下拉 / 模型名输入 / 测试按钮，窄屏折成两行。
 */

.settings-drawer .rag-provider-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.settings-drawer .rag-provider-list:empty {
    display: none;
}

.settings-drawer .rag-provider-row {
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border-light, #ecf0f1);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
}

.settings-drawer .rag-provider-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
}

.settings-drawer .rag-provider-type {
    flex-shrink: 0;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    line-height: 1.5;
    white-space: nowrap;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary, #f1f5f9);
}

.settings-drawer .rag-provider-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-drawer .rag-provider-usage {
    flex-shrink: 0;
    margin-left: auto;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    line-height: 1.5;
    white-space: nowrap;
    color: var(--color-success-dark, #1e8449);
    background-color: var(--color-success-light, #d5eddb);
}

[data-theme="dark"] .settings-drawer .rag-provider-usage {
    color: #7bd9a5;
}

.settings-drawer .rag-provider-meta {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    word-break: break-word;
}

.settings-drawer .rag-provider-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

/* 次级小按钮：编辑 / 删除 / 测试 / 重建索引 共用 */
.settings-drawer .rag-btn-ghost {
    padding: 0.3125rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.25;
    color: var(--text-secondary, #4a5568);
    background-color: transparent;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 0.375rem;
    cursor: pointer;
    min-height: 32px;
    white-space: nowrap;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}

.settings-drawer .rag-btn-ghost:hover:not(:where(html[data-kb-pointer="touch"] *)):not(:disabled) {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-color: var(--text-tertiary);
}

.settings-drawer .rag-btn-ghost.is-danger {
    color: var(--color-error, #e74c3c);
    border-color: color-mix(in srgb, var(--color-error, #e74c3c) 40%, transparent);
}

.settings-drawer .rag-btn-ghost.is-danger:hover:not(:where(html[data-kb-pointer="touch"] *)):not(:disabled) {
    color: #ffffff;
    background-color: var(--color-error, #e74c3c);
    border-color: var(--color-error, #e74c3c);
}

.settings-drawer .rag-btn-ghost:disabled,
.settings-drawer .rag-btn-ghost[aria-busy="true"] {
    color: var(--kb-control-disabled-text);
    background-color: var(--kb-control-disabled-bg);
    border-color: var(--kb-control-disabled-border);
    cursor: not-allowed;
}

/* 槽位行 */
.settings-drawer .rag-slot-row {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
}

.settings-drawer .rag-slot-row .rag-slot-provider {
    flex: 0 1 42%;
    min-width: 0;
}

.settings-drawer .rag-slot-row .rag-slot-model {
    /* .rag-input 自带 width:100%，作为 flex 基准会把「测试」按钮挤到下一行；这里显式改成按剩余空间分 */
    width: auto;
    flex: 1 1 0;
    min-width: 0;
}

.settings-drawer .rag-slot-row .rag-btn-ghost {
    /* 跟随同行输入框的高度与圆角，不用自身的 32px 最小高度 */
    flex-shrink: 0;
    align-self: stretch;
    padding-top: 0;
    padding-bottom: 0;
    border-radius: 0.5rem;
}

.settings-drawer .rag-slot-row .rag-input:disabled {
    color: var(--kb-control-disabled-text);
    background-color: var(--kb-control-disabled-bg);
    border-color: var(--kb-control-disabled-border);
    cursor: not-allowed;
}

@media (max-width: 480px) {
    .settings-drawer .rag-slot-row {
        flex-wrap: wrap;
    }

    .settings-drawer .rag-slot-row .rag-slot-provider {
        flex-basis: 100%;
    }
}

/* 模型名输入框：datalist 的原生下拉箭头会让人误以为是 select，藏掉，建议项改用下方芯片展示 */
.settings-drawer .rag-slot-row .rag-slot-model::-webkit-calendar-picker-indicator {
    display: none !important;
    opacity: 0;
}

.settings-drawer .rag-model-suggestions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.375rem;
    margin-top: 0.375rem;
}

.settings-drawer .rag-model-suggestions:empty {
    display: none;
}

.settings-drawer .rag-model-suggestions-lead {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* 芯片是 <button>：form-unified.css 的全局 button 规则会给它 min-height: 40px / font-weight: 500，
   这里必须显式压掉，否则「常用」一行比旁边的能力标签（<span>）高出一倍。做法同 .rag-btn-ghost */
.settings-drawer .rag-model-chip {
    min-height: 0;
    padding: 0.0625rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1.6;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary, #f1f5f9);
    border: 1px solid transparent;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}

.settings-drawer .rag-model-chip:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.settings-drawer .rag-model-chip.is-active {
    color: var(--primary-color);
    background-color: rgba(59, 130, 246, 0.12);
    border-color: var(--primary-color);
}

/* 能力芯片：亮起的是提供方支持的能力，灰的是不支持（AI 助手里对应按钮会被藏起来） */
.settings-drawer .rag-capability-chips,
.utils-dialog .rag-capability-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.375rem;
}

.settings-drawer .rag-capability-chips:empty,
.utils-dialog .rag-capability-chips:empty {
    display: none;
}

.settings-drawer .rag-capability-chip,
.utils-dialog .rag-capability-chip {
    padding: 0.0625rem 0.5rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    line-height: 1.6;
    color: var(--text-tertiary);
    background-color: var(--bg-tertiary, #f1f5f9);
    text-decoration: line-through;
}

.settings-drawer .rag-capability-chip.is-on,
.utils-dialog .rag-capability-chip.is-on {
    color: var(--color-success-dark, #1e8449);
    background-color: var(--color-success-light, #d5eddb);
    text-decoration: none;
}

[data-theme="dark"] .settings-drawer .rag-capability-chip.is-on,
[data-theme="dark"] .utils-dialog .rag-capability-chip.is-on {
    color: #7bd9a5;
}

/* 索引过期横幅 */
.settings-drawer .rag-stale-banner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.625rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-warning-dark, #b7950b);
    background-color: var(--color-warning-light, #fcf3cd);
}

.settings-drawer .rag-stale-banner[hidden] {
    display: none;
}

.settings-drawer .rag-stale-banner > span {
    flex: 1 1 12rem;
}

.settings-drawer .rag-stale-banner .rag-btn-ghost {
    color: inherit;
    border-color: currentColor;
}

/* 提供方弹框：字段之间要有间距，.kb-dialog-field 自己只管字段内部的 gap */
.utils-dialog .rag-provider-form .kb-dialog-field + .kb-dialog-field {
    margin-top: 0.875rem;
}

/* API Key 的眼睛按钮沿用抽屉里的定位，弹框输入框比抽屉的略高，垂直居中即可 */
.utils-dialog .rag-provider-form .rag-password-wrap {
    position: relative;
}

.utils-dialog .rag-provider-form .rag-password-wrap .kb-dialog-input {
    padding-right: 2.5rem;
}

.utils-dialog .rag-provider-form .rag-eye-btn {
    position: absolute;
    right: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
}

.utils-dialog .rag-provider-form .rag-restore-link {
    font-size: 0.75rem;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: none;
}

.utils-dialog .rag-provider-form .rag-restore-link[hidden] {
    display: none;
}

.utils-dialog .rag-provider-form .kb-dialog-hint.is-error:not([hidden]) {
    display: block;
}

/* ===== 浏览器扩展：已连接设备列表 =====
 *
 * 改版前这些行是靠内联 style 拼出来的，按钮直接复用了 .rag-save-btn
 * （`width:100%` 的主行动按钮），于是「重命名 / 断开连接」各自占满一整行，
 * 叠成两条大色块，状态文字也没有任何视觉层级。这里改成一张张紧凑的设备卡片。
 */

.settings-drawer .clipper-list {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    /* .rag-form-inner 只有左右和底部内边距，顶部留白由这里补上 */
    margin-top: 1rem;
}

.settings-drawer .clipper-empty {
    margin-top: 1rem;
}

/* 列表为空时 .clipper-list 是个零高度的空容器，它的 margin 会把提示文字顶开一倍 */
.settings-drawer .clipper-list:empty {
    margin-top: 0;
}

.settings-drawer .clipper-item {
    padding: 0.75rem 0.875rem;
    /*
     * --border-color / --border-light 都带兜底值：CSS 变量解析不出来时，
     * `border: 1px solid var(--未定义)` 整条声明会在计算阶段作废，
     * 结果不是「边框变默认色」而是**边框整个消失**，卡片会糊成一片。
     */
    border: 1px solid var(--border-light, #ecf0f1);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
}

.settings-drawer .clipper-item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.settings-drawer .clipper-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    /* 设备名最长 100 字，不截断的话会把状态徽标挤出卡片 */
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 状态徽标：flex-shrink:0 保证它永远完整，被压缩的是上面的设备名 */
.settings-drawer .clipper-status {
    flex-shrink: 0;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    line-height: 1.5;
    white-space: nowrap;
}

.settings-drawer .clipper-status.is-ok {
    color: var(--color-success-dark, #1e8449);
    background-color: var(--color-success-light, #d5eddb);
}

/*
 * 深色下 --color-success-light 变成深绿底(#1B4332)，而 --color-success-dark 仍是
 * 浅色主题那支深绿字(#1E8449)——两者叠在一起几乎看不见。文字色必须单独提亮。
 */
[data-theme="dark"] .settings-drawer .clipper-status.is-ok {
    color: #7bd9a5;
}

.settings-drawer .clipper-status.is-muted {
    color: var(--text-tertiary);
    background-color: var(--bg-tertiary, #f1f5f9);
}

.settings-drawer .clipper-meta {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    word-break: break-word;
}

.settings-drawer .clipper-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 0.625rem;
}

.settings-drawer .clipper-action {
    padding: 0.3125rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary, #4a5568);
    background-color: transparent;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 0.375rem;
    cursor: pointer;
    /* 触控目标不低于 32px：这些按钮成排出现，太矮容易误点到隔壁 */
    min-height: 32px;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}

.settings-drawer .clipper-action:hover:not(:where(html[data-kb-pointer="touch"] *)):not(:disabled) {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-color: var(--text-tertiary);
}

.settings-drawer .clipper-action.is-danger {
    color: var(--color-error, #e74c3c);
    border-color: color-mix(in srgb, var(--color-error, #e74c3c) 40%, transparent);
}

.settings-drawer .clipper-action.is-danger:hover:not(:where(html[data-kb-pointer="touch"] *)):not(:disabled) {
    color: #ffffff;
    background-color: var(--color-error, #e74c3c);
    border-color: var(--color-error, #e74c3c);
}

.settings-drawer .clipper-action:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* 窄屏按钮平分一行，比挤在右侧缩成一小撮更好点 */
@media (max-width: 480px) {
    .settings-drawer .clipper-actions .clipper-action {
        flex: 1 1 auto;
    }
}

/* ===== 浏览器扩展：安装与使用指引 ===== */

.settings-drawer .clipper-guide {
    padding-top: 1rem;
}

.settings-drawer .clipper-guide-intro {
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
}

/*
 * 外形复用 .rag-save-btn，但文字色不能沿用它写死的 #fff：
 * 暗色主题下 --primary-color 是浅奶油色，白字几乎看不见（同 dialog.css 主按钮的处理）。
 */
.settings-drawer .clipper-store-link {
    min-height: 44px;
    color: var(--text-inverse, #ffffff);
    text-decoration: none;
}

.settings-drawer .clipper-guide-title {
    margin: 1.25rem 0 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.settings-drawer .clipper-devices-title {
    margin-top: 0;
}

/* reset.css 关掉了 ol 的 list-style，序号用 counter 自己画 */
.settings-drawer .clipper-guide-steps {
    counter-reset: clipper-step;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.settings-drawer .clipper-guide-steps li {
    counter-increment: clipper-step;
    position: relative;
    padding-left: 1.75rem;
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-secondary);
    word-break: break-word;
}

.settings-drawer .clipper-guide-steps li::before {
    content: counter(clipper-step);
    position: absolute;
    left: 0;
    top: 0.125rem;
    width: 1.125rem;
    height: 1.125rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1.125rem;
    text-align: center;
    color: var(--text-inverse, #ffffff);
    background-color: var(--primary-color);
}

.settings-drawer .clipper-guide kbd {
    display: inline-block;
    padding: 0 0.3125rem;
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light, #ecf0f1);
    border-radius: 0.25rem;
}

.settings-drawer .clipper-guide-faq {
    margin-top: 1rem;
    border: 1px solid var(--border-light, #ecf0f1);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
}

.settings-drawer .clipper-guide-faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 0 0.875rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    -webkit-tap-highlight-color: transparent;
}

.settings-drawer .clipper-guide-faq summary::-webkit-details-marker {
    display: none;
}

.settings-drawer .clipper-guide-faq-icon {
    font-size: 1.125rem;
    color: var(--text-tertiary);
    transition: transform 0.15s;
}

.settings-drawer .clipper-guide-faq[open] .clipper-guide-faq-icon {
    transform: rotate(180deg);
}

.settings-drawer .clipper-guide-faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0 0.875rem 0.875rem;
}

.settings-drawer .clipper-guide-faq-list li {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-secondary);
    word-break: break-word;
}

.settings-drawer .clipper-guide-faq-list strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* 分隔线 */
.settings-drawer .rag-divider {
    height: 1px;
    background-color: var(--border-light);
    margin: 1rem 0;
}

/* 提示文字 */
.settings-drawer .rag-hint {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

/* 复选开关行：整行可点，触控区高度不低于 44px */
.settings-drawer .rag-switch-row {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    min-height: 44px;
    padding: 0.25rem 0;
    cursor: pointer;
}

.settings-drawer .rag-switch-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    flex-shrink: 0;
    cursor: pointer;
}

.settings-drawer .rag-switch-row span {
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* ===== END RAG 配置区域样式 ===== */