/* ====== 基础变量与重置 ====== */
:root {
    --primary: #7551FB;
    --primary-dark: #5B3FE0;
    --primary-soft: rgba(117, 81, 251, 0.08);
    --primary-ring: rgba(117, 81, 251, 0.15);
    --success: #26ab5f;
    --warning: #f0a030;
    --danger: #e5534b;
    --bg: #F1F2F7;
    --sidebar-bg: #F8F9FC;
    --card-bg: #ffffff;
    --text: #3D4D5D;
    --text-secondary: #6B6F78;
    --text-tertiary: #8C8B93;
    --border: #E3E4EA;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(30,32,60,0.05);
    --transition: 0.2s ease;
    --ctl-h: 40px;
    /* 新解析上传页强调色(紫色系, 与 --primary 统一) */
    --pd-blue: #7551FB;
    --pd-blue-dark: #5B3FE0;
    --pd-blue-soft: #F1ECFE;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* ====== 顶部标题条(百炼风: 纯白, 汉堡+品牌) ====== */
.topbar { height: 50px; display: flex; align-items: center; gap: 10px; padding: 0 14px;
    background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.topbar-menu { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px;
    border: none; border-radius: 8px; background: transparent; color: var(--text-secondary); cursor: pointer;
    padding: 0; transition: var(--transition); }
.topbar-menu:hover { background: var(--primary-soft); color: var(--primary); }
.topbar-menu svg { width: 20px; height: 20px; }
.topbar-brand { display: inline-flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 700;
    color: var(--text); letter-spacing: .3px; }
.brand-ico { width: 22px; height: 22px; color: var(--primary); }
/* 顶栏右上角用户区 */
.topbar-user { position: relative; margin-left: auto; }
.user-btn { display: flex; align-items: center; gap: 7px; border: none; background: transparent; cursor: pointer; padding: 4px 8px; border-radius: 8px; color: var(--text); }
.user-btn:hover { background: var(--primary-soft); }
.user-avatar { width: 28px; height: 28px; border-radius: 50%; background: linear-gradient(135deg,var(--primary),var(--primary-dark)); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; flex-shrink: 0; }
.user-name { font-size: 14px; font-weight: 500; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-menu { position: absolute; right: 0; top: 46px; width: 230px; background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.14); overflow: hidden; z-index: 200; }
.user-menu.hidden { display: none; }
.user-menu-head { display: flex; align-items: center; gap: 12px; padding: 16px; border-bottom: 1px solid var(--border); }
.user-avatar-lg { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg,var(--primary),var(--primary-dark)); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 600; flex-shrink: 0; }
.um-name { font-size: 15px; font-weight: 600; color: var(--text); word-break: break-all; }
.user-menu-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 12px 16px; border: none; background: transparent; cursor: pointer; font-size: 14px; color: var(--text); text-align: left; }
.user-menu-item:hover { background: var(--primary-soft); color: var(--primary); }

/* ====== 主布局 ====== */
.app-main {
    --content-w: 600px;   /* 右侧题目栏默认宽度(拖拽手柄可在 320~860 间覆盖) */
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 0;
    max-width: none;
    margin: 0;
    padding: 0;
    min-height: calc(100vh - 50px);
}
/* 三栏: 分析出题框后才变三栏; 中间原卷占大头(数传式), 右侧题目栏收窄, 用满屏宽 */
.app-main.has-layout { grid-template-columns: 300px minmax(0, 1fr) var(--content-w, 480px);
    max-width: none; gap: 14px; padding: 10px 12px 0 0; }

/* ====== 版面框面板(中栏) ====== */
.layoutpane { display: flex; flex-direction: column; min-width: 0; background: transparent;
    overflow: hidden; max-height: calc(100vh - 62px); }
.layoutpane.hidden { display: none; }
.lp-head { flex: 0 0 auto; min-height: 40px; display: flex; align-items: center; flex-wrap: wrap; gap: 4px 8px;
    padding: 5px 10px; background: #fff; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 14px; }
.lp-tabs { display: flex; gap: 4px; }
.lp-tab { border: 1px solid var(--border); background: #f4f5f7; color: #555; border-radius: 6px;
    padding: 3px 12px; font-size: 13px; cursor: pointer; }
.lp-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.lp-info { margin-left: auto; font-weight: 400; font-size: 12px; color: #86909c; }
.lp-container { flex: 1; overflow: auto; padding: 14px; display: flex; flex-direction: column;
    align-items: center; gap: 16px; background: #e9eaee; }
.lp-tip { color: #86909c; font-size: 13px; padding: 20px; text-align: center; }
.lp-tip.err { color: #c0392b; }
.page-wrap { position: relative; background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.15);
    width: calc(var(--zoom, 1) * 100%); margin: 0 auto; flex: 0 0 auto; }
.page-wrap canvas { display: block; width: 100%; height: auto; }
.textLayer { position: absolute; left: 0; top: 0; overflow: hidden; line-height: 1; text-align: initial;
    transform-origin: 0 0; z-index: 2; forced-color-adjust: none; }
.textLayer span, .textLayer br { color: transparent; position: absolute; white-space: pre; cursor: text;
    transform-origin: 0 0; }
.textLayer ::selection { background: rgba(0,90,255,.28); }
.overlay { position: absolute; inset: 0; pointer-events: none; z-index: 3; }  /* 抬到 textLayer(z2) 之上, 否则透明文字层盖住题框, 鼠标点不到框→联动失效 */
.qbox { position: absolute; pointer-events: auto; cursor: pointer; border: 1.5px solid rgba(75,92,255,.6);
    background: rgba(75,92,255,.10); border-radius: 2px; transition: background .12s; }
.qbox:hover { background: rgba(75,92,255,.22); }
.qbox.active { border: 2px solid #ff7a00; background: rgba(255,122,0,.22);
    box-shadow: 0 0 0 2px rgba(255,122,0,.35); z-index: 5; }
.qbox-no { position: absolute; left: -1px; top: -1px; background: rgba(75,92,255,.9); color: #fff;
    pointer-events: auto; z-index: 5; cursor: pointer;
    font-size: 10px; line-height: 1; padding: 2px 4px; border-radius: 3px 0 4px 0; }
.qbox.active .qbox-no { background: #ff7a00; }
.qbox.approx { border-style: dashed; border-color: rgba(245,158,11,.9); background: rgba(245,158,11,.10); }
.qbox.approx .qbox-no { background: #f59e0b; }
.qbox.unmatched { border-color: #ef4444; background: rgba(239,68,68,.13); }
.qbox.unmatched .qbox-no { background: #ef4444; }
.qbox.raw { border: 1px dashed rgba(13,148,136,.75); background: rgba(13,148,136,.05); cursor: default; }
.qbox.raw:hover { background: rgba(13,148,136,.16); }
.qbox.raw .qbox-no { background: rgba(13,148,136,.9); font-size: 9px; padding: 1px 3px; }

/* ====== 侧栏历史 + 顶部工具栏(数传式外壳) ====== */
.hist-search { width: 100%; box-sizing: border-box; height: var(--ctl-h); padding: 0 12px;
    border: 1px solid var(--border); border-radius: 8px; font-size: 13px; margin-bottom: 8px;
    background: #fff; color: var(--text); }
.hist-search:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-ring); }
.hist-list { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; max-height: 52vh; }
/* 列表左缘对齐上方搜索框: 抵消 .panel>*:not(h2)(第247行)给的左缩进, 缩进只由 hist-item 承担 */
.panel > .hist-list { padding-left: 0; padding-right: 0; }
.hist-empty { color: #98a2b3; font-size: 12px; padding: 16px 8px; text-align: center; }
.hist-item { display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 8px;
    cursor: pointer; font-size: 13px; color: #334155; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hist-item:hover { background: var(--primary-soft); }
.hist-item.active { background: rgba(117, 81, 251, 0.12); color: var(--primary); font-weight: 600; }
.hist-item .title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hist-badge { font-size: 11px; padding: 1px 6px; border-radius: 6px; flex-shrink: 0; }
.hist-badge.ok { background: #e7f7ec; color: #1a9c4a; }
.hist-badge.run { background: #fff4e0; color: #d97a10; }
.hist-badge.fail { background: #fde8e8; color: #d64545; }
.hist-del { flex-shrink: 0; border: none; background: transparent; color: #b0b8c4; cursor: pointer;
    font-size: 15px; line-height: 1; padding: 0 3px; border-radius: 4px; opacity: 0; transition: opacity .15s; }
.hist-item:hover .hist-del { opacity: 1; }
.hist-del:hover { background: #fde8e8; color: #d64545; }
/* 清空全部历史: 侧栏底部低调危险文字按钮 */
.hist-clear-btn { display: flex; align-items: center; justify-content: center; gap: 6px; width: 100%;
    margin-top: 10px; padding: 8px 10px; border: 1px solid transparent; border-radius: 8px;
    background: transparent; color: #98a2b3; font-size: 13px; cursor: pointer; transition: var(--transition); }
.hist-clear-btn:hover { background: #fde8e8; color: var(--danger); border-color: #f3c9c9; }
.hist-clear-btn svg { width: 14px; height: 14px; }
.top-toolbar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 6px 4px;
    background: transparent; border-bottom: 1px solid var(--border); flex: 0 0 auto; }
.top-toolbar.hidden { display: none; }
.top-toolbar .btn { width: auto; margin-top: 0; flex: 0 0 auto; height: auto; }
.lp-split { flex: 1; display: flex; min-height: 0; gap: 10px; padding: 8px 0 0; }
.lp-pane { flex: 1; min-width: 0; display: flex; flex-direction: column; background: #fff;
    border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
#lpPaneQ { flex: 1.5; }   /* 试卷宽 */
#lpPaneA { flex: 1; }     /* 答案窄 */
.lp-full { margin-left: 4px; border: 1px solid var(--border); background: #f4f5f7; border-radius: 6px;
    width: 28px; height: 24px; cursor: pointer; font-size: 13px; line-height: 1; padding: 0; }
.lp-full:hover { background: #e7ebff; }
.lp-zoom { border: 1px solid var(--border); background: #f4f5f7; border-radius: 6px;
    width: 24px; height: 24px; cursor: pointer; font-size: 15px; line-height: 1; padding: 0; }
.lp-zoom:hover { background: #e7ebff; }
.lp-zlabel { font-size: 12px; color: #4e5969; min-width: 40px; text-align: center; }
.lp-vlm, .lp-raw, .lp-text { border: 1px solid var(--border); background: #f4f5f7; border-radius: 6px; padding: 2px 7px;
    cursor: pointer; font-size: 11px; line-height: 1.4; white-space: nowrap; }
.lp-vlm:hover, .lp-raw:hover, .lp-text:hover { background: #e7ebff; }
.lp-vlm.on, .lp-raw.on, .lp-text.on { background: var(--primary); color: #fff; border-color: var(--primary); }
.lp-text-on .qbox { pointer-events: none; }   /* "选择文字"开: 题框让位, 整页原卷文字可选中/复制 */
.layoutpane.full-q #lpPaneA, .layoutpane.full-a #lpPaneQ { display: none; }
#stepsContainer { display: none; }   /* 拆完题右侧不再显示流水线步骤卡 */
.tb-title { font-weight: 600; font-size: 14px; color: #1f2937; }
.tb-sep { width: 1px; height: 18px; background: var(--border); margin: 0 3px; }
.tb-label { font-size: 12px; color: #6b7280; }
/* 导出下拉菜单(工具栏最右, 点击展开格式列表) */
.export-dd { position: relative; display: inline-flex; }
.export-menu { position: absolute; top: 100%; right: 0; margin-top: 4px; z-index: 50; padding: 4px;
    background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 4px 16px rgba(30,32,60,.14);
    display: flex; flex-direction: column; min-width: 120px; }
.export-menu.hidden { display: none; }
.export-menu button { border: none; background: transparent; text-align: left; padding: 7px 12px;
    border-radius: 6px; cursor: pointer; font-size: 13px; color: var(--text); white-space: nowrap; }
.export-menu button:hover { background: var(--primary-soft); color: var(--primary); }
.tb-check { font-size: 12px; color: #6b7280; display: flex; align-items: center; gap: 3px; }
.btn-sm { padding: 5px 10px !important; font-size: 12px !important; }

/* 侧栏抽屉: 可收起/展开(百炼风: 纯白底, 无右边框, 靠内容区浅灰形成分隔) */
.sidebar { position: relative; transition: none; overflow: visible; align-self: stretch;
    display: flex; flex-direction: column; min-height: calc(100vh - 50px);
    background: #fff; border-right: 1px solid var(--border);
    border-radius: 0; }
.sidebar-toggle { position: fixed; top: 50%; transform: translateY(-50%); left: 288px; width: 22px; height: 44px;
    z-index: 30; border: 1px solid var(--border); border-left: none; border-radius: 0 8px 8px 0;
    background: #fff; color: var(--text-tertiary); cursor: pointer; font-size: 15px; padding: 0;
    box-shadow: 2px 0 6px rgba(30,32,60,.06); transition: left .15s ease, color .15s, background .15s; }
.app-main.sidebar-collapsed .sidebar-toggle { left: 2px; }
.sidebar-toggle:hover { background: var(--primary-soft); color: var(--primary); }
.app-main.sidebar-collapsed { grid-template-columns: 0 1fr; }
.app-main.has-layout.sidebar-collapsed { grid-template-columns: 0 minmax(0, 1fr) var(--content-w, 480px); }
.sidebar.collapsed > :not(.sidebar-toggle) { display: none; }
.sidebar.collapsed { background: transparent; border-right: none; }
.side-scroll { display: flex; flex-direction: column; gap: 2px; flex: 1 1 auto;
    max-height: calc(100vh - 50px); overflow-y: auto; padding: 8px 10px 16px; }

/* ====== 拆卷抽屉: 主侧栏右侧独立列, 识别完出现, 可折叠(仿主侧栏) ====== */
.split-drawer { position: relative; align-self: stretch; display: flex; flex-direction: column;
    min-height: calc(100vh - 50px); background: #fff; border-right: 1px solid var(--border); overflow: visible; }
.split-drawer.hidden { display: none; }
.sd-scroll { display: flex; flex-direction: column; gap: 6px; flex: 1 1 auto;
    max-height: calc(100vh - 50px); overflow-y: auto; padding: 10px 10px 16px; }
.sd-head { font-size: 14px; font-weight: 600; color: var(--text); padding: 2px 2px 4px; }
/* 三栏: 主侧栏(300) | 拆卷列表(260) | 预览(1fr); 与 has-layout 互斥 */
.app-main.has-split { grid-template-columns: 300px var(--split-w, 340px) 1fr; gap: 0; }
.app-main.has-split.sidebar-collapsed { grid-template-columns: 0 var(--split-w, 340px) 1fr; }
.app-main.has-split.split-collapsed { grid-template-columns: 300px 0 1fr; }
.app-main.has-split.sidebar-collapsed.split-collapsed { grid-template-columns: 0 0 1fr; }
/* 折叠态: 藏内容 + 去分隔线, 仅留 fixed 把手 */
.app-main.split-collapsed .split-drawer { border-right: none; }
.app-main.split-collapsed .split-drawer > .sd-scroll { display: none; }
/* 折叠把手(仿 .sidebar-toggle), 下移 56px 避开主侧栏把手 */
.split-drawer-toggle { position: fixed; top: calc(50% + 56px); transform: translateY(-50%);
    left: calc(300px + var(--split-w, 340px)); width: 22px; height: 44px; z-index: 30; border: 1px solid var(--border);
    border-left: none; border-radius: 0 8px 8px 0; background: #fff; color: var(--text-tertiary);
    cursor: pointer; font-size: 15px; padding: 0; box-shadow: 2px 0 6px rgba(30,32,60,.06);
    transition: left .15s ease, color .15s, background .15s; }
.split-drawer-toggle:hover { background: var(--primary-soft); color: var(--primary); }
.app-main.has-split.split-collapsed .split-drawer-toggle { left: 300px; }
.app-main.has-split.sidebar-collapsed .split-drawer-toggle { left: var(--split-w, 340px); }
.app-main.has-split.sidebar-collapsed.split-collapsed .split-drawer-toggle { left: 0; }
/* 抽屉右边缘拖宽手柄: 贴右侧, 悬停/拖动高亮; 折叠态隐藏 */
.sd-resizer { position: absolute; top: 0; right: 0; bottom: 0; width: 6px; z-index: 6;
    cursor: col-resize; transition: background .15s; }
.sd-resizer:hover, .sd-resizer.dragging { background: var(--primary-soft); }
.app-main.split-collapsed .sd-resizer { display: none; }
/* 每套页码起/止小输入框(去数字微调箭头) */
.sp-pg { width: 32px; text-align: center; font-size: 12px; padding: 2px 3px;
    border: 1px solid var(--border); border-radius: 4px; -moz-appearance: textfield; }
.sp-pg::-webkit-outer-spin-button, .sp-pg::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* ====== 百炼风侧栏菜单: 去卡片框, 标题→可折叠菜单行 ====== */
.panel { background: transparent; border: none; border-radius: 8px;
    padding: 0; box-shadow: none; margin: 0; }
.panel:hover { border: none; box-shadow: none; }

/* 标题行 = 菜单按钮行(图标 + 名称 + 折叠箭头) */
.panel > h2 { display: flex; align-items: center; gap: 10px; margin: 0;
    padding: 9px 10px; border-radius: 8px; cursor: pointer; user-select: none;
    font-size: 14px; font-weight: 500; color: var(--text); transition: background .15s; }
.panel > h2:hover { background: var(--primary-soft); }
.panel-ico { width: 18px; height: 18px; flex: 0 0 auto; color: var(--text-secondary);
    transition: color .15s; }
.panel > h2:hover .panel-ico { color: var(--primary); }
/* 折叠箭头(CSS 生成, 统一细线; 折叠时转 -90°) */
.panel > h2::after { content: ""; width: 14px; height: 14px; margin-left: auto; flex: 0 0 auto;
    transition: transform .18s; background: no-repeat center/contain
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A0A3AE' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); }
.panel.collapsed > h2::after { transform: rotate(-90deg); }

/* 展开的表单内容: 缩进对齐 + 折叠时收起 */
.panel > *:not(h2) { padding-left: 10px; padding-right: 2px; }
.panel > .upload-zone, .panel > .file-info { margin-top: 4px; }
.panel:not(:last-child) { margin-bottom: 6px; }
.panel.collapsed > *:not(h2) { display: none !important; }
/* 侧栏主行动按钮(确定并切题/导入返工/自动识别等)统一: 整宽·居中·左右对称·一致间距 */
.panel > .btn-primary, .panel > .btn { width: 100%; padding-left: 10px; padding-right: 10px;
    margin-top: 8px; }

/* 侧栏分割线(历史回溯上方) */
.side-sep { border-top: 1px solid var(--border); margin: 12px 8px 2px; }
/* 分组小标题(资料上传 / 分析设置 / 实用工具) */
.side-group { font-size: 12px; color: var(--text-tertiary); font-weight: 600;
    padding: 15px 10px 5px; letter-spacing: .5px; }
.side-group.first { padding-top: 4px; }
/* 无文字的分组: 仅留一点分隔间距(呼吸空隙) */
.side-group:empty { padding: 7px 0 0; }
.side-group.first:empty { padding: 0; }

/* 统一图标(emoji→svg): 尺寸随字号(1em)、颜色随文字(currentColor)、垂直居中 */
.ic { width: 1em; height: 1em; flex: 0 0 auto; vertical-align: -.14em; }

/* 面板内说明文字(替代行内 style) */
.p-hint { font-size: 11px; color: var(--text-tertiary); margin: 0 0 8px; line-height: 1.5; }

/* ====== 上传区域: 细虚线薄框包住按钮(拖拽变紫) ====== */
.upload-zone {
    border: 1.5px dashed var(--border);
    border-radius: 8px;
    padding: 8px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: #fff;
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-soft);
}
.upload-icon { font-size: 40px; margin-bottom: 10px; }
.upload-hint { color: var(--text-secondary); font-size: 12px; margin-top: 6px; }
.upload-panel { padding: 0; }
/* 侧栏内: 上传区去掉虚线外框, 只留一个素净小按钮(百炼风) */
.panel .upload-zone { border: none; padding: 0; background: transparent; }
.panel .upload-zone:hover { background: transparent; }
.panel .upload-zone .btn { height: 34px; font-size: 13px; font-weight: 500;
    background: #fff; border: 1px solid var(--border); color: var(--text-secondary); }
.panel .upload-zone .btn:hover { border-color: var(--primary); color: var(--primary);
    background: var(--primary-soft); }
.upload-zone .upload-icon, .upload-zone > p { display: none; }
.upload-zone .btn { width: 100%; margin-top: 0; }
.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
    padding: 8px 12px;
    background: var(--primary-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
}
.file-name { flex: 1; font-weight: 600; word-break: break-all; color: var(--text); }
.file-size { color: var(--text-secondary); white-space: nowrap; }
.hidden { display: none !important; }

/* ====== 按钮 ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: var(--ctl-h);
    padding: 0 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: 8px;
}
.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { background: #C9C7D8; cursor: not-allowed; }
.btn-outline {
    background: white;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.btn-outline:disabled { color: #b9bcc7; border-color: var(--border); cursor: not-allowed; }
.btn-danger { background: var(--danger); color: white; border: none; }
.btn-small { height: auto; padding: 4px 10px; font-size: 12px; width: auto; }

/* ====== 侧栏表单控件(40px 圆角行) ====== */
.fld { display: block; width: 100%; box-sizing: border-box; height: var(--ctl-h);
    padding: 0 12px; border: 1px solid var(--border); border-radius: 8px;
    font-size: 13px; margin-bottom: 8px; background: #fff; color: var(--text);
    font-family: inherit; }
textarea.fld { height: auto; min-height: 72px; padding: 8px 12px; resize: vertical; }
.fld:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-ring); }
.fld::placeholder { color: var(--text-tertiary); }
.fld-label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.fld-sm { margin-bottom: 4px; }
.btn-block { width: 100%; }
.mb8 { margin-bottom: 8px; }
.mb10 { margin-bottom: 10px; }
.mt8 { margin-top: 8px; }

/* ====== 模型配置区 ====== */
.config-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 14px;
}
#aiConfig { margin-top: 10px; }
.model-section {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 12px;
}
.model-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.model-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
    color: white;
}
.model-badge.ds { background: var(--primary); }
.model-badge.qw { background: #8b5cf6; }
#aiConfig label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
#aiConfig input {
    display: block;
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    margin-top: 3px;
}
#aiConfig input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-ring);
}

.export-buttons { display: flex; flex-direction: column; gap: 6px; }
.export-buttons .btn { margin-top: 0; }

/* ====== 内容区 ====== */
.content { display: flex; flex-direction: column; gap: 20px;
    height: calc(100vh - 50px); overflow-y: auto; overflow-x: hidden; align-self: stretch; }
/* 空的步骤/题目容器不占位, 否则 flex gap 会在首页顶部撑出灰色间隔 */
.steps-container:empty, .questions-container:empty { display: none; }

/* 题目栏左边缘拖宽手柄: fixed 贴右栏左边界(随 --content-w 移动), 仅三栏 has-layout 出现 */
.content-resizer { display: none; }
.app-main.has-layout .content-resizer { display: block; position: fixed; top: 54px; bottom: 4px;
    right: calc(var(--content-w, 480px) + 12px); width: 8px; z-index: 20;
    cursor: col-resize; border-radius: 4px; transition: background .15s; }
.content-resizer:hover, .content-resizer.dragging { background: var(--primary-soft); }
@media (max-width: 900px) { .content-resizer { display: none !important; } }

/* 进度条: 视口顶部居中的醒目浮动条(fixed 脱离右栏, 不随滚动/分栏丢失, 强阴影+高层级易见)。
   批量打标签/卡片重打/初始拆题都靠它; 编辑弹窗(showModal top-layer)盖不住, 那里另给按钮内联反馈。 */
.progress-bar {
    background: var(--card-bg);
    border-radius: 24px;
    height: 48px;
    border: 1px solid var(--border);
    position: fixed;
    top: 92px;
    left: 50%;
    transform: translateX(-50%);
    width: min(560px, 88vw);
    z-index: 1000;
    box-shadow: 0 14px 40px rgba(0,0,0,.22);
    overflow: hidden;
    display: flex;
    align-items: center;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #7551FB, #9B7DFF);
    border-radius: 20px;
    transition: width 0.4s ease;
    width: 0%;
}
.progress-text {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 13px;
    color: var(--text);
    font-weight: 600;
}

/* ====== 统计卡片 ====== */
.summary-cards {
    display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center;
    padding: 8px 14px; background: #fff; border: 1px solid var(--border); border-radius: 10px;
    font-size: 13px; color: #475569;
}
.summary-cards b { color: var(--primary); font-size: 15px; }
.summary-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 18px;
    border: 1px solid var(--border);
    text-align: center;
    box-shadow: var(--shadow);
}
.summary-card .num { font-size: 32px; font-weight: 700; color: var(--primary); }
.summary-card .label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ====== 步骤展示 ====== */
.steps-container { display: flex; flex-direction: column; gap: 12px; }
.step-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
}
.step-card h3 { font-size: 15px; margin-bottom: 6px; }
.step-card p { font-size: 13px; color: var(--text-secondary); }

/* ====== 题目卡片 ====== */
.question-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 14px;
}
.q-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.q-title { font-size: 16px; font-weight: 700; }
.q-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.badge-type { background: var(--primary-soft); color: var(--primary); }
.badge-difficulty { background: #fff7ed; color: #ea580c; }
.badge-knowledge { background: #f0fdf4; color: #16a34a; }

.q-stem { margin-bottom: 12px; line-height: 1.8; }
/* #### 这类小标题: 独占一行(块级,不靠 <br>)、加粗蓝字、上下留白形成层次 */
.q-head { display: block; font-weight: 600; color: #2b5797; margin: 8px 0 2px; }
/* 答案/解析框正文也用宽松行距, 与题干一致, 排版更舒展 */
.q-answer-box, .q-analysis-box { line-height: 1.8; }

.q-options { margin: 0 0 12px 16px; }
.q-options li { padding: 3px 0; font-size: 14px; list-style: none; }

.q-tags { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.q-tag-item { font-size: 13px; }
.q-tag-item .tag-label { color: var(--text-secondary); }
.q-tag-item .tag-value { font-weight: 600; }

.q-answer-box {
    margin-top: 12px;
    padding: 12px 16px;
    background: #f0fdf4;
    border-radius: 8px;
    font-size: 14px;
}
.q-analysis-box {
    margin-top: 8px;
    padding: 12px 16px;
    background: #fefce8;
    border-radius: 8px;
    font-size: 14px;
}
.q-steps-box {
    margin-top: 8px;
    padding: 12px 16px;
    background: #f8fafc;
    border-radius: 8px;
    font-size: 13px;
}
.q-steps-box ol { margin-left: 18px; }

.q-actions { margin-top: 12px; display: flex; gap: 6px; justify-content: flex-end; flex-wrap: nowrap; }
.q-actions .btn-small { padding: 4px 8px; font-size: 11px; white-space: nowrap; }
.questions-container img, .q-stem img, .q-options img { max-width: 100%; height: auto; }

/* ====== 空状态 ====== */
.empty-state {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 60px 40px;
    text-align: center;
    border: 2px dashed var(--border);
}
.empty-icon { font-size: 56px; margin-bottom: 16px; }
.empty-state h3 { font-size: 20px; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); font-size: 14px; }

/* ====== 左侧「+ 新解析」按钮 ====== */
.new-analysis-btn { display: flex; align-items: center; justify-content: center; gap: 7px;
    width: 100%; height: 40px; margin: 2px 0 10px; padding: 0 14px;
    background: var(--primary); color: #fff; border: none; border-radius: 9px;
    font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--transition);
    box-shadow: 0 2px 8px rgba(124,92,246,.28); }
.new-analysis-btn:hover { background: var(--primary-dark); box-shadow: 0 4px 14px rgba(124,92,246,.38); }
.new-analysis-btn svg { width: 18px; height: 18px; }

/* ====== 主区「新解析」上传页(飞桨风淡蓝) ====== */
/* 淡蓝渐变背景(na-page 自带, 见下) */
.na-page { padding: 48px 32px 40px; text-align: center;
    width: 100%; margin: 0; flex: 1 1 auto; min-height: 0;
    background: linear-gradient(180deg, #F0EBFF 0%, #F5F1FF 32%, #FBF9FF 70%, #fff 100%);
    border-radius: 0; }
.na-title { font-size: 27px; font-weight: 700; margin: 8px 0 6px; letter-spacing: .5px;
    background: linear-gradient(90deg, #5B3FE0, #9B7BFF); -webkit-background-clip: text;
    background-clip: text; -webkit-text-fill-color: transparent; }
.na-sub { color: #6E6591; font-size: 14px; margin-bottom: 32px; }
.na-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 0 auto 22px; max-width: 900px; text-align: left; }
.na-card { background: rgba(255,255,255,.72); border: 1px solid #E4DAFB; border-radius: 16px; padding: 18px;
    box-shadow: 0 4px 18px rgba(117,81,251,.08); backdrop-filter: blur(2px); }
.na-card-h { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600;
    color: #3A2F52; margin-bottom: 14px; }
.na-badge { display: inline-block; padding: 2px 9px; border-radius: 6px; font-size: 12px;
    background: var(--pd-blue-soft); color: var(--pd-blue); font-weight: 600; }
.na-badge-opt { background: #EEF0F4; color: var(--text-secondary); }
/* 上传区: 飞桨风蓝色虚线框 + 浅蓝内底 + 大图标 */
.na-card .upload-zone { border: 2px dashed #CBB9F6; border-radius: 12px; padding: 34px 16px;
    background: linear-gradient(180deg, #F7F3FF, #FCFBFF); display: block; transition: var(--transition); }
.na-card .upload-zone:hover, .na-card .upload-zone.drag-over { border-color: var(--pd-blue);
    background: var(--pd-blue-soft); box-shadow: 0 0 0 4px rgba(117,81,251,.10) inset; }
.na-card .upload-zone .upload-icon { display: block; font-size: 46px; margin-bottom: 10px; }
.na-card .upload-zone .upload-icon svg { width: 48px; height: 48px; color: var(--pd-blue); margin: 0 auto; }
.na-config #mineruAnalyzeBtn .btn-ico { width: 17px; height: 17px; vertical-align: -3px; margin-right: 4px; }
.na-card .upload-zone > p { display: block; color: #6E6591; font-size: 13px; margin-bottom: 14px; }
.na-card .upload-zone .btn { width: auto; min-width: 150px; background: #fff;
    border: 1px solid var(--pd-blue); color: var(--pd-blue); font-weight: 600; }
.na-card .upload-zone .btn:hover { background: var(--pd-blue); color: #fff; }
.na-card .file-info { margin-top: 12px; }
/* 底部配置行: 学科 + 切题按钮 */
.na-config { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px;
    max-width: 580px; margin: 0 auto; }
.na-config .fld { flex: 1 1 200px; min-width: 180px; height: 44px; margin-bottom: 0;
    box-sizing: border-box; appearance: none; -webkit-appearance: none; padding: 0 34px 0 14px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 24 16' fill='none' stroke='%236B6F78' stroke-width='2.5'><path d='m3 4 9 9 9-9'/></svg>");
    background-repeat: no-repeat; background-position: right 14px center; }
.na-config .fld-label { display: none; }
.na-config #mineruAnalyzeBtn { flex: 0 0 auto; width: auto; min-width: 190px; height: 44px; margin: 0;
    background: var(--primary); color: #fff; border: none;
    font-size: 15px; font-weight: 600; box-shadow: 0 4px 14px rgba(117,81,251,.32); }
.na-config #mineruAnalyzeBtn:hover { background: linear-gradient(90deg, #5B3FE0, #7551FB);
    box-shadow: 0 6px 18px rgba(117,81,251,.42); }
.workflow-preview {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.step-item {
    padding: 10px 18px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
}
.step-arrow { color: var(--text-secondary); font-size: 18px; }

/* ====== 弹窗 ====== */
.edit-dialog {
    border: none;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    padding: 0;
    min-width: 520px;
    max-width: 860px;
    width: 90vw;
    max-height: 92vh;
    margin: auto;              /* 视口居中 */
}
/* 编辑框字段横排: 同一行放多个字段, 等宽 */
.dialog-body .fld-row { display: flex; gap: 10px; align-items: flex-start; }
.dialog-body .fld-row .fld-cell { flex: 1; min-width: 0; }
.edit-dialog::backdrop { background: rgba(0,0,0,0.4); }
.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.dialog-body { padding: 20px; max-height: 70vh; overflow-y: auto; }
.dialog-body label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    margin-top: 12px;
}
.dialog-body input, .dialog-body textarea, .dialog-body select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
}
.dialog-body textarea { min-height: 80px; resize: both; }
.dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}
.dialog-footer .btn { width: auto; margin-top: 0; }

/* ====== 页面预览 ====== */
.page-viewer { max-height: 70vh; overflow-y: auto; }
.page-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
.page-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: #fafafa;
}
.page-label {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    background: #f0f4ff;
    border-bottom: 1px solid var(--border);
}
.page-card img { width: 100%; cursor: pointer; }
.page-card img:hover { opacity: 0.9; }
.img-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}
.img-card {
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    text-align: center;
    background: white;
}
.img-card:hover { border-color: var(--primary); }
.img-label {
    font-size: 11px; color: var(--text-secondary);
    margin-bottom: 6px; word-break: break-all;
}

/* 图片管理面板: 跟随页面下拉(sticky), 滚到哪跟到哪, 方便随时复制图片 */
#imagePanel {
    position: sticky;
    top: 12px;
    z-index: 10;
    background: var(--card-bg);   /* sticky 时防止透出下方内容 */
}
/* sticky 跟随时, 图片列表按视口高度自适应, 图多也好翻 */
#imagePanel .img-gallery-sidebar {
    max-height: max(320px, calc(100vh - 220px));
}

/* ====== 侧边栏图片管理 ====== */
.img-gallery-sidebar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
}
.img-card-sidebar {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px;
    cursor: pointer;
    text-align: center;
    background: white;
    transition: var(--transition);
}
.img-card-sidebar:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(117,81,251,0.2);
}
.img-card-sidebar img {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
}
.img-meta {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 2px;
}
.img-url-preview {
    font-size: 9px;
    color: #aaa;
    word-break: break-all;
    margin-top: 2px;
}

/* ====== Toast ====== */
#toast {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

/* ====== 响应式 ====== */
@media (max-width: 900px) {
    .app-main { grid-template-columns: 1fr; }
    .app-main.has-layout { grid-template-columns: 1fr; }
    .app-main.has-split { grid-template-columns: 1fr; }
    .split-drawer-toggle { display: none; }
    .layoutpane { display: none; }
    .q-tags { grid-template-columns: 1fr; }
}

/* ====== 编辑弹窗：图片三类管理 ====== */
.img-edit-section {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px dashed var(--border);
}
.img-edit-section h4 { margin: 4px 0 8px; font-size: 14px; }
.img-edit-head {
    font-size: 12px; font-weight: 600; color: var(--text-secondary);
    margin: 8px 0 4px;
}
.img-row {
    display: flex; align-items: center; gap: 6px;
    margin-bottom: 6px; flex-wrap: nowrap;
}
.img-thumb {
    width: 44px; height: 44px; object-fit: contain;
    border: 1px solid var(--border); border-radius: 4px; background: #fafafa;
    flex-shrink: 0;
}
/* 覆盖 .dialog-body input/select 的 width:100%，避免把删除按钮挤出视区 */
.dialog-body .img-row .img-url {
    flex: 1 1 auto; min-width: 60px; width: auto; padding: 5px 8px;
    border: 1px solid var(--border); border-radius: 5px; font-size: 12px; margin-top: 0;
}
.dialog-body .img-row .img-type, .dialog-body .img-row .img-opt {
    width: auto; flex: 0 0 auto; padding: 5px 4px;
    border: 1px solid var(--border); border-radius: 5px; font-size: 12px; margin-top: 0;
}
.img-row .btn-danger { flex: 0 0 auto; padding: 4px 9px; }
.img-btn-row { display: flex; gap: 6px; margin: 2px 0 6px; }
.img-btn-row .btn-small { flex: 1; }
.badge-warn {
    background: #ffe9b0; color: #8a6d00; border-radius: 8px;
    padding: 1px 7px; font-size: 10px; white-space: nowrap; flex: 0 0 auto;
}
/* 题干/解析里的表格(MinerU 表格、折线图数据等) */
.q-table {
    border-collapse: collapse; margin: 8px 0; font-size: 13px;
    width: 100%; max-width: 100%;
}
.q-table td, .q-table th {
    border: 1px solid #ccc; padding: 4px 10px; text-align: center;
    white-space: normal; word-break: break-word; overflow-wrap: anywhere;
}
.q-table th { background: #f2f5fa; font-weight: 600; }
.q-table tr:nth-child(even) td { background: #fafbfc; }
.q-rich-details {
    margin: 8px 0; padding: 6px 10px; border: 1px dashed #cbd5e1;
    border-radius: 6px; background: #fafcff;
}
.q-rich-details summary { cursor: pointer; color: #555; font-size: 12px; user-select: none; }

/* 编辑弹窗内的表格编辑器 */
/* 编辑弹窗各模块之间拉开间距 + 顶部实线分隔, 分块更清晰(高特异性覆盖各 section 原 12px 小间距) */
.dialog-body .opt-edit-section,
.dialog-body .tbl-edit-section,
.dialog-body .img-edit-section,
.dialog-body .ans-edit-section { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--border); }
.dialog-body .ans-edit-section > label:first-child { margin-top: 0; }
.dialog-body .retag-box { margin-top: 28px; }
.tbl-edit-section { margin-top: 12px; padding-top: 10px; border-top: 1px dashed var(--border); }
.tbl-edit-section h4 { margin: 0 0 8px; font-size: 13px; }
.tbl-block { margin-bottom: 14px; padding: 8px; border: 1px solid var(--border); border-radius: 6px; overflow-x: auto; }
.tbl-head { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.tbl-head b { font-size: 12px; margin-right: auto; }
.tbl-edit { border-collapse: collapse; }
.tbl-edit td { border: 1px solid var(--border); padding: 2px; vertical-align: top; }
.tbl-edit .tbl-ctl td { border: none; padding: 1px; text-align: center; }
.dialog-body .tbl-edit .tcell { width: auto; min-width: 64px; padding: 4px 6px; font-size: 12px; margin-top: 0; border: 1px solid transparent; }
.dialog-body .tbl-edit .tcell[data-h="1"] { background: #f2f5fa; font-weight: 600; }
.dialog-body .tbl-edit .tcell.sel { border-color: #4a90d9; background: #e8f0fd; box-shadow: inset 0 0 0 1px #4a90d9; }
.tbl-hint { font-size: 11px; color: #94a3b8; margin: 2px 0 6px; }
/* 拖拽框选进行中: 禁止文本选中, 光标变十字, 让框选顺畅 */
body.tbl-dragging, body.tbl-dragging .tcell { user-select: none; -webkit-user-select: none; cursor: cell; }
.btn-mini { padding: 1px 5px; font-size: 10px; color: #c0392b; background: #fff; border: 1px solid #f0c0c0; border-radius: 4px; cursor: pointer; }
.btn-mini:hover { background: #fde8e8; }

/* ====== AI 复核题目 ====== */
.review-bar { margin-bottom: 10px; }
.review-check { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-secondary); margin-top: 7px; cursor: pointer; }
.review-panel { margin: 0 0 16px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; box-shadow: 0 1px 5px rgba(0,0,0,.05); }
.review-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 12px 16px; background: #f8fafc; border-bottom: 1px solid var(--border); font-size: 14px; font-weight: 600; color: #1f2937; }
.review-head.ok { background: #f0fdf4; color: #16a34a; border-bottom: none; }
.rv-cnt { font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 10px; }
.rv-cnt.err { background: #fef2f2; color: #dc2626; }
.rv-cnt.wrn { background: #fffbeb; color: #d97706; }
.rv-cnt.inf { background: #f1f5f9; color: #64748b; }
.review-issue { display: flex; align-items: center; gap: 10px; padding: 9px 16px; border-bottom: 1px solid #f1f5f9; font-size: 13px; border-left: 4px solid transparent; }
.review-issue:last-child { border-bottom: none; }
.review-issue.error { border-left-color: #dc2626; background: #fffafa; }
.review-issue.warn { border-left-color: #f59e0b; background: #fffdf7; }
.review-issue.info { border-left-color: #94a3b8; }
.rv-q { font-weight: 600; white-space: nowrap; color: #1f2937; }
.rv-cat { font-size: 12px; color: var(--text-secondary); white-space: nowrap; }
.rv-msg { flex: 1; color: #444; line-height: 1.5; }
.review-head .btn-mini { margin-left: auto; }
.review-panel .btn-mini { color: var(--primary); border-color: #c5d0f0; white-space: nowrap; }
.review-panel .btn-mini:hover { background: #eef2fe; }
/* 跳转到题卡时的高亮闪烁 */
@keyframes qFlash { 0%,100% { box-shadow: 0 0 0 0 rgba(117,81,251,0); } 30% { box-shadow: 0 0 0 4px rgba(117,81,251,.5); } }
.q-card-flash { animation: qFlash 1s ease-in-out 2; border-color: var(--primary) !important; }

/* ====== 登录遮罩 ====== */
.login-overlay { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; background: rgba(15,23,42,.55); backdrop-filter: blur(3px); }
.login-overlay.hidden { display: none; }
.login-card { background: #fff; padding: 32px 28px; border-radius: 14px; box-shadow: 0 10px 40px rgba(0,0,0,.25); width: 320px; max-width: 90vw; text-align: center; }
.login-card h2 { margin: 0 0 4px; font-size: 22px; }
.login-tip { color: #6b7d95; font-size: 13px; margin: 0 0 18px; }
.login-card input { width: 100%; box-sizing: border-box; padding: 11px 13px; margin-bottom: 12px; border: 1px solid #d8e0ec; border-radius: 8px; font-size: 14px; }
.login-card input:focus { outline: none; border-color: var(--primary); }
.login-card .btn { width: 100%; padding: 11px; font-size: 15px; margin-top: 4px; }
.login-err { color: #dc2626; font-size: 13px; min-height: 18px; margin: 10px 0 0; }

/* 画线部分(阅读题(A)(B)…处画线短语，OCR丢失的下划线在前端补上) */
.q-underline { text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 3px; }

/* 着重号(加点): 中文习惯点在字的下方 */
.emph-dot { text-emphasis: filled dot; -webkit-text-emphasis: filled dot;
  text-emphasis-position: under; -webkit-text-emphasis-position: under; }
/* 编辑弹窗工具栏(着重号/手动换行) */
.edit-toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 8px 20px; border-bottom: 1px solid #eef2f7; background: #fafbfd; }
.edit-toolbar-hint { font-size: 12px; color: #94a3b8; }

/* 题组(大题)清晰布局 v1 */
.q-group .q-passage{background:#f6f8fa;border:1px solid #e1e4e8;border-left:4px solid #4a90d9;border-radius:6px;padding:12px 14px;margin:8px 0 12px;line-height:1.9}
.q-group-tags{margin:8px 0;font-size:12px}
.q-subs{margin-top:10px;display:flex;flex-direction:column;gap:12px}
.q-sub{border:1px solid #e1e4e8;border-radius:8px;padding:12px 14px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.q-sub-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px;padding-bottom:6px;border-bottom:1px dashed #e1e4e8}
.q-sub-num{font-weight:700;color:#fff;background:#4a90d9;border-radius:12px;padding:2px 11px;font-size:13px}
.q-sub .q-stem{margin:4px 0;line-height:1.8}
.q-sub .q-options{margin:6px 0;padding-left:18px}
.q-sub .q-answer-box,.q-sub .q-analysis-box{margin:6px 0;padding:6px 10px;background:#fafbfc;border-radius:5px}
/* 图片加工按钮: 悬停图片右上角浮出「白底黑字」 */
.img-wrap{position:relative;display:inline-block;line-height:0}
.img-proc-btn{position:absolute;top:8px;right:8px;font-size:11px;line-height:1.3;padding:2px 6px;border:1px solid #bbb;border-radius:5px;background:rgba(255,255,255,.92);color:#333;cursor:pointer;opacity:0;transition:opacity .15s;z-index:2}
.img-wrap:hover .img-proc-btn,.img-card-sidebar:hover .img-proc-btn{opacity:1}
.img-card-sidebar .img-proc-btn{top:4px;right:4px;font-size:10px;padding:1px 4px}