/* ============================================================
   教师工作台 · 设计系统  app.css
   ============================================================ */
:root{
  --bg:#f4f6fb; --panel:#ffffff; --panel-2:#fafbfe;
  --ink:#17202e; --ink-2:#41506a; --muted:#7a879c;
  --line:#e6ebf3; --line-2:#eef2f8;
  --accent:#2f6bff; --accent-soft:rgba(47,107,255,.10);
  --accent-2:#7c5cff; --teal:#0fb5a5;
  --ok:#0f9d58; --ok-soft:rgba(15,157,88,.12);
  --warn:#e8a33d; --warn-soft:rgba(232,163,61,.14);
  --danger:#e5484d; --danger-soft:rgba(229,72,77,.12);
  --info:#2f6bff; --info-soft:rgba(47,107,255,.10);
  --purple:#7c5cff; --purple-soft:rgba(124,92,255,.12);
  --nav:#121a2b; --nav-2:#1a2439; --nav-ink:#c3cddf; --nav-muted:#7b879e;
  --r:12px; --r-sm:8px; --r-lg:18px;
  --sh-1:0 1px 2px rgba(16,24,40,.05); --sh-2:0 6px 18px rgba(16,24,40,.07); --sh-3:0 18px 46px rgba(16,24,40,.16);
  --f:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--f);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,h5{margin:0;font-weight:650;letter-spacing:-.01em}
p{margin:0 0 10px}
code,kbd,pre{font-family:var(--mono)}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#c8d2e2;border-radius:9px}
::-webkit-scrollbar-thumb:hover{background:#a9b7cd}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 布局 ---------- */
.app{display:grid;grid-template-columns:236px 1fr;min-height:100vh}
.side{background:var(--nav);color:var(--nav-ink);position:sticky;top:0;height:100vh;display:flex;flex-direction:column;overflow:hidden}
.side-hd{padding:16px 16px 12px;border-bottom:1px solid rgba(255,255,255,.07)}
.brand{display:flex;align-items:center;gap:10px}
.brand .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2f6bff,#7c5cff);display:grid;place-items:center;font-weight:800;color:#fff;font-size:15px;flex:0 0 auto}
.brand b{color:#fff;font-size:14.5px;display:block;line-height:1.25}
.brand span{font-size:11px;color:var(--nav-muted)}
.side-nav{padding:10px 10px 16px;overflow-y:auto;flex:1}
.nav-cap{font-size:11px;color:var(--nav-muted);padding:12px 8px 6px;letter-spacing:.06em}
.nav-i{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:var(--nav-ink);cursor:pointer;font-size:13.5px;margin-bottom:2px;border:1px solid transparent;transition:.15s;user-select:none}
.nav-i:hover{background:var(--nav-2);color:#fff}
.nav-i.on{background:linear-gradient(90deg,rgba(47,107,255,.30),rgba(47,107,255,.10));color:#fff;border-color:rgba(47,107,255,.35)}
.nav-i .ic{width:18px;text-align:center;font-size:14px;flex:0 0 18px}
.nav-i .tag{margin-left:auto;font-size:10.5px;background:rgba(255,255,255,.14);border-radius:20px;padding:1px 7px}
.nav-i .tag.hot{background:var(--danger)}
.side-ft{padding:10px 12px 14px;border-top:1px solid rgba(255,255,255,.07);font-size:11.5px;color:var(--nav-muted)}
.main{min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:10px 20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.topbar h2{font-size:16px}
.topbar .sub{font-size:12px;color:var(--muted)}
.spacer{flex:1}
.wrap{padding:18px 20px 60px;max-width:1500px;width:100%}

/* ---------- 通用块 ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden}
.card-hd{padding:12px 16px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--panel-2)}
.card-hd h3{font-size:14px}
.card-hd .hint{font-size:12px;color:var(--muted)}
.card-hd .r{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.card-bd{padding:16px}

/* ---------- 学科分组标题（错题收集 / 错题管理 分学科展示） ---------- */
.sub-hd{display:flex;align-items:center;gap:8px;margin:18px 0 10px;font-size:13.5px;font-weight:700;color:var(--text)}
.sub-hd:first-child{margin-top:0}
.sub-hd .xs{font-weight:400}
.sub-hd .badge{font-size:12px}
.card-bd.tight{padding:0}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g23{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.g32{grid-template-columns:minmax(0,320px) minmax(0,1fr)}
.g15{grid-template-columns:minmax(0,1fr) minmax(0,5fr)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.tight{gap:6px}
.stack{display:flex;flex-direction:column;gap:10px}
/* ---------- 移动端导航（v56）：汉堡按钮 / 抽屉遮罩 / 底部快捷栏 ---------- */
/* 注意：这三条基础规则必须写在下方 @media(max-width:980px) 之前。
   v56 初版误放在其后，同特异性下后者胜出，导致手机端 .nav-toggle / .mnav
   仍为 display:none（汉堡与底部快捷栏实际不显示）。v57 修正顺序。 */
.nav-toggle{display:none;font-size:15px;padding:5px 10px}
.side-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:55;opacity:0;pointer-events:none;transition:opacity .2s}
.side-mask.on{opacity:1;pointer-events:auto}
.mnav{display:none;position:fixed;left:0;right:0;bottom:0;z-index:40;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:3px 6px calc(3px + env(safe-area-inset-bottom));box-shadow:0 -2px 14px rgba(16,24,40,.06)}
.mnav-i{flex:1;display:flex;flex-direction:column;align-items:center;gap:0;border:0;background:none;padding:5px 2px 6px;border-radius:10px;cursor:pointer;color:var(--muted);font:500 10.5px var(--f);min-width:0;-webkit-tap-highlight-color:transparent}
.mnav-i .mi{font-size:19px;line-height:1.15}
.mnav-i .mt{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mnav-i.on{color:var(--accent);font-weight:700}
.mnav-i.on .mi{filter:drop-shadow(0 2px 6px rgba(47,107,255,.35))}
.mnav-i:active{background:var(--accent-soft)}

@media(max-width:1240px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* v56 移动端适配：≤980px 侧栏改为抽屉（不再消失），底部出现快捷导航栏 */
@media(max-width:980px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:264px;height:100dvh;transform:translateX(-105%);transition:transform .22s ease;z-index:60;display:flex}
  .side.open{transform:none;box-shadow:0 10px 60px rgba(2,6,23,.5)}
  .g2,.g3,.g4,.g23,.g32,.g15{grid-template-columns:1fr}
  .wrap{padding:14px 12px 78px}
  .lib-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
  .nav-toggle{display:inline-flex}
  .mnav{display:flex}
  /* 手机顶栏压缩：外链只留图标，放大侧栏点按区 */
  .topbar{gap:8px;padding:8px 12px}
  .topbar .btx{display:none}
  .topbar .btn{margin:0}
  .side-nav .nav-i{font-size:14.5px;padding:11px 12px;margin-bottom:4px}
  .side-nav .nav-cap{padding:14px 8px 7px}
}

/* ---------- 文字 ---------- */
.muted{color:var(--muted)}
.small{font-size:12px}
.xs{font-size:11.5px}
.mono{font-family:var(--mono)}
.bold{font-weight:650}
.center{text-align:center}
.right{text-align:right}
.nowrap{white-space:nowrap}
.trunc{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:7px 13px;border-radius:var(--r-sm);font:500 13px var(--f);cursor:pointer;transition:.15s;white-space:nowrap}
.btn:hover{border-color:#c9d4e6;background:#f8faff}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.pri{background:linear-gradient(135deg,var(--accent),#4a7dff);border-color:transparent;color:#fff;box-shadow:0 2px 10px rgba(47,107,255,.28)}
.btn.pri:hover{filter:brightness(1.06)}
.btn.ok{background:var(--ok);border-color:transparent;color:#fff}
.btn.warn{background:var(--warn);border-color:transparent;color:#fff}
.btn.dan{background:#fff;border-color:#f2c3c5;color:var(--danger)}
.btn.dan:hover{background:#fff5f5}
.btn.gho{background:transparent;border-color:transparent;color:var(--ink-2)}
.btn.gho:hover{background:var(--accent-soft);color:var(--accent)}
.btn.sm{padding:4px 9px;font-size:12px;border-radius:7px}
.btn.xs{padding:2px 7px;font-size:11.5px;border-radius:6px}
.btn.block{width:100%}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- 表单 ---------- */
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.field>label{font-size:12.5px;color:var(--ink-2);font-weight:600}
.field .req{color:var(--danger)}
.input,.select,.textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 10px;font:14px var(--f);background:#fff;color:var(--ink);outline:none;transition:.15s}
.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.textarea{resize:vertical;min-height:74px;line-height:1.6}
.input.sm,.select.sm{padding:5px 8px;font-size:13px}
.inline{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}
.inline .field{margin-bottom:0;min-width:150px}
.help{font-size:11.5px;color:var(--muted)}
.check{display:flex;gap:7px;align-items:center;font-size:13px;cursor:pointer}
input[type=checkbox],input[type=radio]{accent-color:var(--accent);width:15px;height:15px}

/* ---------- 分段/标签页 ---------- */
.seg{display:inline-flex;background:#eef2f8;border-radius:10px;padding:3px;gap:3px}
.seg button{border:0;background:transparent;padding:6px 14px;border-radius:8px;font:600 13px var(--f);color:var(--ink-2);cursor:pointer;transition:.15s}
.seg button.on{background:#fff;color:var(--accent);box-shadow:var(--sh-1)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:14px;overflow-x:auto}
.tabs button{border:0;background:transparent;padding:9px 14px;font:600 13.5px var(--f);color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.tabs button.on{color:var(--accent);border-bottom-color:var(--accent)}

/* ---------- 徽标 ---------- */
.badge{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;padding:1.5px 8px;border-radius:20px;background:#eef2f8;color:var(--ink-2);font-weight:600;white-space:nowrap}
.badge.ok{background:var(--ok-soft);color:#0b7a44}
.badge.warn{background:var(--warn-soft);color:#9a6a12}
.badge.dan{background:var(--danger-soft);color:#b8323a}
.badge.info{background:var(--info-soft);color:#1e4fd0}
.badge.pur{background:var(--purple-soft);color:#5b3fd6}
.badge.gray{background:#eef1f6;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--muted);display:inline-block}
.dot.ok{background:var(--ok)}.dot.warn{background:var(--warn)}.dot.dan{background:var(--danger)}
.chip{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);background:#fff;border-radius:20px;padding:3px 10px;font-size:12px;cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}
/* v56 手机分享收件箱（PWA Share Target，复用 inbox 行样式） */
.share-off{border:1px dashed var(--line);border-radius:12px;padding:14px;color:var(--muted);font-size:13px;background:var(--bg-soft)}

/* ---------- 班级资料库 ---------- */
.drop-zone{border:2px dashed var(--line);border-radius:14px;padding:22px 18px;text-align:center;color:var(--muted);background:var(--bg-soft);transition:.18s;cursor:pointer}
.drop-zone.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.drop-zone .btn{margin-top:6px}
.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:12px}
.lib-card{display:flex;align-items:center;gap:12px;background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:12px 14px;transition:.15s}
.lib-card:hover{border-color:var(--accent);box-shadow:0 4px 16px rgba(31,102,255,.10);transform:translateY(-1px)}
.lib-ic{font-size:30px;flex:none;width:42px;text-align:center}
.lib-meta{flex:1;min-width:0}
.lib-name{font-weight:650;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lib-sub{font-size:12px;color:var(--muted);margin-top:3px}
.lib-acts{display:flex;gap:6px;flex-wrap:wrap;flex:none}
/* ---------- 班级资料库 v54：层级文件夹 + 标签美化 ---------- */
.lib-crumbs{display:flex;align-items:center;gap:4px;flex-wrap:wrap;font-size:13px}
.lib-crumb{border:1px solid transparent;background:none;color:var(--accent);font:600 13px var(--f);cursor:pointer;padding:3px 8px;border-radius:8px;transition:.15s}
.lib-crumb:hover{background:var(--accent-soft);border-color:var(--accent)}
.lib-csep{color:var(--muted);font-size:12px}
.lib-tip{border:1px dashed var(--line);border-radius:10px;padding:9px 12px;color:var(--muted);font-size:12.5px;background:var(--bg-soft);margin-bottom:10px}
.lib-dest{display:inline-flex;align-items:center;gap:5px;background:var(--accent-soft);border:1px solid var(--accent);color:var(--accent);font-weight:650;font-size:12.5px;border-radius:8px;padding:3px 10px}
.lib-sec-t{font-size:12.5px;font-weight:700;color:var(--muted);margin:12px 0 8px;letter-spacing:.02em}
.lib-sec-t:first-child{margin-top:0}
.lib-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}
.lib-tag{display:inline-flex;align-items:center;font-size:11px;font-weight:650;line-height:1.6;padding:0 8px;border-radius:20px;border:1px solid transparent;white-space:nowrap}
.lib-tag.sub{background:#f1f5f9;color:#475569;border-color:#e2e8f0}
.lib-folder{background:linear-gradient(180deg,#fff, var(--bg-soft));border-style:dashed;cursor:pointer}
.lib-folder .lib-ic{font-size:26px}
.lib-mv-list{display:flex;flex-direction:column;gap:6px;max-height:46vh;overflow:auto}
.lib-mv-row{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13.5px;cursor:pointer;background:var(--bg-soft)}
.lib-mv-row:hover{border-color:var(--accent)}
.lib-mv-row input{accent-color:var(--accent)}
/* ---------- 班级资料库 v55：右键 / 长按 上下文菜单 ---------- */
.lib-ctx-mask{position:fixed;inset:0;z-index:1000;background:transparent}
.lib-ctx{position:fixed;z-index:1001;min-width:180px;max-width:260px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 40px rgba(15,23,42,.20);padding:6px;font:14px var(--f);color:var(--ink);animation:libCtxIn .12s ease}
@keyframes libCtxIn{from{opacity:0;transform:scale(.96) translateY(-3px)}to{opacity:1;transform:none}}
.lib-ctx-i{display:flex;align-items:center;gap:9px;width:100%;padding:9px 11px;border:0;background:none;border-radius:8px;cursor:pointer;color:var(--ink);text-align:left;font:500 13.5px var(--f);transition:.1s;white-space:nowrap}
.lib-ctx-i:hover{background:var(--accent-soft)}
.lib-ctx-i.dan{color:#dc2626}
.lib-ctx-i.dan:hover{background:#fef2f2}
.lib-ctx-ic{width:20px;text-align:center;flex:none;font-size:15px}
.lib-ctx-t{overflow:hidden;text-overflow:ellipsis}
/* ---------- 班级资料库 · QQ采集待整理 ---------- */
.inbox-card{display:flex;align-items:center;gap:12px;background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.inbox-card.imp{animation:inboxIn .35s ease}
@keyframes inboxIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.inbox-ic{font-size:26px;flex:none;width:38px;text-align:center}
.inbox-meta{flex:1;min-width:0}
.inbox-name{font-weight:650;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.inbox-sub{font-size:12px;color:var(--muted);margin-top:3px}
.inbox-ctl{display:flex;gap:6px;align-items:center;flex-wrap:wrap;flex:none}
.inbox-ctl .select{max-width:110px;padding:4px 8px;font-size:12px}
.inbox-off{border:1px dashed var(--line);border-radius:12px;padding:14px;color:var(--muted);font-size:13px;background:var(--bg-soft)}

/* ---------- QQ 采集·待整理 ---------- */
.inb-list{display:flex;flex-direction:column;gap:8px}
.inb-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:9px 12px}
.inb-row .inb-name{flex:1;min-width:180px;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.inb-row .inb-name .muted{font-weight:400}
.inb-row .select{max-width:130px}

/* ---------- 手机分享收件箱（PWA Share Target） ---------- */
.lib-pick{display:flex;flex-direction:column;gap:6px;max-height:46vh;overflow:auto}
.lib-pick-i{display:flex;align-items:center;gap:10px;padding:9px 11px;border:1px solid var(--line);border-radius:10px;cursor:pointer;background:var(--bg-soft);transition:.1s}
.lib-pick-i:hover{border-color:var(--accent);background:var(--accent-soft)}
.lib-pick-i input{flex:none}
.lp-ic{font-size:18px;flex:none;width:24px;text-align:center}
.lp-n{flex:1;min-width:0;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lib-att{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.att-chip{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--accent-ink);border:1px solid var(--accent-line);border-radius:999px;padding:4px 8px 4px 10px;font-size:12.5px;max-width:240px}
.att-chip b,.att-chip span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.att-x{border:0;background:none;color:inherit;cursor:pointer;font-size:15px;line-height:1;padding:0 2px;opacity:.65}
.att-x:hover{opacity:1}
.att-link{display:inline-flex;align-items:center;gap:5px;color:var(--accent-ink);text-decoration:none;background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:8px;padding:4px 9px;font-size:13px;margin:0 6px 6px 0}
.att-link:hover{filter:brightness(.97);text-decoration:underline}
.att-link::after{content:"↗";opacity:.6;font-size:11px}
.hw-att-row{line-height:2}

/* ---------- 表格 ---------- */
.tw{overflow:auto;max-height:none;border-radius:0}
table.tb{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;min-width:640px}
table.tb th{position:sticky;top:0;z-index:2;background:var(--panel-2);text-align:left;padding:9px 12px;font-weight:650;color:var(--ink-2);border-bottom:1px solid var(--line);font-size:12.5px;white-space:nowrap}
table.tb td{padding:9px 12px;border-bottom:1px solid var(--line-2);vertical-align:top}
table.tb tbody tr:hover{background:#f9fbff}
table.tb tbody tr.sel{background:var(--accent-soft)}
table.tb td.num,table.tb th.num{text-align:right;font-variant-numeric:tabular-nums}
table.tb .acts{display:flex;gap:6px;flex-wrap:wrap}
.tb-empty{padding:36px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- KPI ---------- */
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px;box-shadow:var(--sh-1)}
.kpi .k{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.kpi .v{font-size:26px;font-weight:750;margin:6px 0 2px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.kpi .d{font-size:11.5px;color:var(--muted)}
.kpi .v.up{color:var(--danger)}.kpi .v.down{color:var(--ok)}

/* ---------- 进度 ---------- */
.pg{height:7px;background:#eef2f8;border-radius:20px;overflow:hidden;min-width:70px}
.pg>i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),#5b8bff);border-radius:20px}
.pg>i.ok{background:linear-gradient(90deg,#12b76a,#37d08a)}
.pg>i.warn{background:linear-gradient(90deg,#e8a33d,#f3c46a)}
.pg>i.dan{background:linear-gradient(90deg,#e5484d,#f27f83)}

/* ---------- 条形图 ---------- */
.bars{display:flex;flex-direction:column;gap:8px}
.bars .b{display:grid;grid-template-columns:92px 1fr 56px;gap:10px;align-items:center;font-size:12.5px}
.bars .b .t{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bars .b .v{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}
.bars .b .track{height:16px;background:#f1f5fb;border-radius:6px;overflow:hidden}
.bars .b .fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--accent),#6f9bff)}

/* ---------- 模态 ---------- */
.mask{position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(2px);z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto}
.modal{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-3);width:100%;max-width:720px;overflow:hidden;animation:pop .18s ease}
.modal.lg{max-width:1000px}
.modal.xl{max-width:1280px}
.modal.sm{max-width:460px}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.985)}to{opacity:1;transform:none}}
.modal-hd{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.modal-hd h3{font-size:15px}
.modal-hd .x{margin-left:auto;cursor:pointer;color:var(--muted);font-size:20px;line-height:1;border:0;background:none;padding:2px 6px;border-radius:6px}
.modal-hd .x:hover{background:#f2f5fa;color:var(--ink)}
.modal-bd{padding:18px;max-height:70vh;overflow-y:auto}
.modal-ft{padding:12px 18px;border-top:1px solid var(--line);display:flex;gap:8px;justify-content:flex-end;background:var(--panel-2);flex-wrap:wrap}

/* ---------- 提示 ---------- */
#toasts{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;flex-direction:column;gap:8px}
.toast{background:#131c2e;color:#eaf0fb;padding:10px 14px;border-radius:10px;font-size:13px;box-shadow:var(--sh-2);max-width:380px;animation:slide .2s ease;display:flex;gap:8px;align-items:flex-start}
.toast.ok{background:#0b7a44}.toast.warn{background:#9a6a12}.toast.dan{background:#b8323a}
@keyframes slide{from{opacity:0;transform:translateX(14px)}to{opacity:1;transform:none}}
.note{border-radius:var(--r-sm);padding:10px 12px;font-size:12.5px;border:1px solid;line-height:1.65}
.note.info{background:var(--info-soft);border-color:#c9daff;color:#1b3f9c}
.note.warn{background:var(--warn-soft);border-color:#f5debb;color:#8a5f13}
.note.dan{background:var(--danger-soft);border-color:#f7ccce;color:#a52c33}
.note.ok{background:var(--ok-soft);border-color:#bfe9d4;color:#0b7a44}
.note.pur{background:var(--purple-soft);border-color:#ddd3ff;color:#543ac4}

/* ---------- 列表项 ---------- */
.li{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line-2);align-items:flex-start}
.li:last-child{border-bottom:0}
.li:hover{background:#fafcff}
.li .av{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#e8eeff,#f2e9ff);display:grid;place-items:center;font-weight:700;color:var(--accent);font-size:13px;flex:0 0 36px}
.li .bd{flex:1;min-width:0}
.li .hd{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:3px}
.li .ttl{font-weight:600;font-size:13.5px}
.li .meta{font-size:11.5px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap}
.li .ac{margin-left:auto;display:flex;gap:6px;align-items:center}

/* ---------- 欢迎引导 + AI 批改四步流程（作业批改首页） ---------- */
.guide-hero{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(135deg,#eef4ff 0%,#f7f9ff 45%,#eafaf3 100%);padding:26px 28px 24px;margin-bottom:14px}
.guide-hero:after{content:'';position:absolute;right:-40px;top:-40px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(47,107,255,.10),transparent 70%)}
.guide-hero .gh-ill{position:absolute;right:26px;top:14px;font-size:74px;opacity:.9;filter:drop-shadow(0 6px 12px rgba(31,60,120,.16))}
.guide-hero .gh-t{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:.5px}
.guide-hero .gh-s{font-size:13.5px;color:var(--muted);margin-top:6px}
.guide-hero .gh-steps{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px;position:relative;z-index:1}
.gh-step{border:1px solid #d6e2f8;background:#fff;color:var(--accent);font-weight:700;font-size:14px;padding:10px 20px;border-radius:24px;cursor:pointer;transition:.15s;box-shadow:0 2px 8px rgba(31,60,120,.06)}
.gh-step:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(31,60,120,.14)}
.gh-step.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.gh-arrow{color:#9fb3d4;font-size:16px;font-weight:700}
.flow-strip{display:flex;align-items:stretch;gap:6px;flex-wrap:wrap}
.flow-i{flex:1;min-width:150px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel-2);padding:14px 12px;text-align:center}
.flow-ic{width:38px;height:38px;margin:0 auto 8px;border-radius:11px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-size:19px}
.flow-t{font-weight:700;font-size:13px;color:var(--ink)}
.flow-d{font-size:11.5px;color:var(--muted);margin-top:4px;line-height:1.5}
.flow-arrow{display:grid;place-items:center;color:#b6c6e2;font-size:15px;font-weight:800;padding:0 2px}
@media(max-width:760px){.guide-hero{padding:20px 16px}.guide-hero .gh-ill{font-size:48px;right:12px;top:8px}.guide-hero .gh-t{font-size:19px}.flow-arrow{display:none}}

/* ---------- 左右两栏选择器（学生错题 / 班级管理） ---------- */
.pane-list{max-height:64vh;overflow:auto;display:flex;flex-direction:column;gap:8px}
.pick-i{display:flex;align-items:center;gap:10px;padding:9px 11px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:#fff;cursor:pointer;transition:.12s}
.pick-i:hover{border-color:#c3d4f0;background:#fafcff}
.pick-i.on{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 2px rgba(47,107,255,.10)}
.pick-i .av{width:32px;height:32px;flex:0 0 32px;border-radius:9px;background:linear-gradient(135deg,#e8eeff,#f2e9ff);display:grid;place-items:center;font-weight:700;color:var(--accent);font-size:12px}
.pick-i .bd{flex:1;min-width:0}
.pick-i .ttl{font-weight:600;font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pick-i .meta{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pick-i .rt{margin-left:auto;flex:none}
.pane-grp{font-size:11.5px;color:var(--muted);font-weight:700;padding:4px 2px 0;letter-spacing:.5px}
/* 班级管理左栏紧凑版（宽度约为右栏 1/5） */
.cls-mini .card-bd{padding:12px 10px}
.cls-mini .pane-list{gap:6px}
.cls-mini .pick-i{padding:8px;gap:8px}
.cls-mini .pick-i .av{width:26px;height:26px;flex:0 0 26px;font-size:10.5px}
.cls-mini .pick-i .ttl{font-size:12px}
.cls-mini .pick-i .meta{font-size:10.5px}
.cls-mini .pick-i .rt .badge{font-size:10px;padding:1px 5px}
.cls-mini .card-bd>.row{gap:6px}
.cls-mini .card-bd>.row .btn{padding:3px 8px;font-size:11.5px}

/* ---------- 标签行筛选（错题筛选 / 试题中心） ---------- */
.frow{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line-2);flex-wrap:wrap}
.frow:last-child{border-bottom:0}
.frow>.lb{width:112px;flex:none;color:var(--muted);font-size:12.5px}
.stepper{display:inline-flex;align-items:center;gap:6px}
.stepper .stp{width:26px;height:26px;padding:0;display:grid;place-items:center;font-weight:800;font-size:15px;line-height:1}
.stepper input{width:54px;text-align:center}

/* ---------- 试题中心卡片 ---------- */
.qchips{display:flex;gap:6px;flex-wrap:wrap;flex:1;min-width:0}
.qb-chip{border:1px solid var(--line);background:#fff;border-radius:16px;padding:4px 13px;font-size:12px;color:var(--ink);cursor:pointer;transition:.12s;white-space:nowrap}
.qb-chip:hover{border-color:#c3d4f0;color:var(--accent)}
.qb-chip.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}
.qbank-card{display:flex;flex-direction:column;gap:9px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r);background:#fff;transition:.14s}
.qbank-card:hover{border-color:#c3d4f0;box-shadow:0 6px 18px rgba(31,60,120,.08)}
.qbank-card .qc-hd{display:flex;align-items:flex-start;gap:10px;justify-content:space-between}
.qbank-card .qc-t{font-size:13.5px;font-weight:700;color:var(--ink);line-height:1.55;flex:1;min-width:0}
.qbank-card .qc-btns{display:flex;gap:6px;flex:none}
.qbank-card .qc-tags{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.qb-num{display:inline-grid;place-items:center;min-width:22px;height:22px;padding:0 6px;border-radius:6px;background:var(--accent);color:#fff;font-size:11.5px;font-weight:800;margin-right:2px}
.pager{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.pager .pg{min-width:28px;height:28px;padding:0 6px;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer;font-size:12.5px;color:var(--ink)}
.pager .pg:hover{border-color:var(--accent);color:var(--accent)}
.pager .pg.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}
.pager .pg.dis{opacity:.45;cursor:not-allowed}

/* ---------- 空态 ---------- */
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.empty .ic{font-size:34px;opacity:.5;display:block;margin-bottom:8px}

/* ---------- 图片/答卷 ---------- */
.paper-thumb{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;overflow:hidden;cursor:zoom-in;position:relative}
.paper-thumb img{width:100%;display:block}
.paper-thumb .lbl{position:absolute;left:6px;top:6px;background:rgba(17,24,39,.72);color:#fff;font-size:10.5px;padding:1px 7px;border-radius:20px}
.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.drop{border:2px dashed #cfd9ea;border-radius:var(--r);padding:26px;text-align:center;color:var(--muted);background:var(--panel-2);cursor:pointer;transition:.15s}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.drop b{display:block;color:var(--ink);margin-bottom:4px;font-size:14px}

/* ---------- 批阅痕迹 ---------- */
.qcard{border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;overflow:hidden;background:#fff}
.qcard-hd{padding:10px 14px;background:var(--panel-2);border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.qcard-bd{padding:14px}
.imp-rows{max-height:46vh;overflow:auto;border-top:1px solid var(--line);margin-top:6px}
.imp-alt{margin:8px 0 2px;border:1px dashed var(--line);border-radius:var(--r);padding:8px 12px;background:var(--panel-2)}
.imp-alt summary{cursor:pointer;font-size:12.5px;color:var(--muted);user-select:none}
.imp-alt summary:hover{color:var(--accent)}
.imp-alt .textarea{margin-top:8px;font-size:12px}
.empty-state{padding:22px;text-align:center;color:var(--muted);font-size:12.5px}
.qrow{border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;overflow:hidden;background:#fff}
.qrow-hd{padding:8px 12px;background:var(--panel-2);border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.qrow .textarea,.qrow .input{margin:8px 12px 0;width:calc(100% - 24px)}
.qrow .textarea{font-size:12px;line-height:1.5}
.stu-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:10px}
.stu{border:1px solid var(--line);border-radius:var(--r-sm);padding:10px;background:#fff;transition:.15s}
.stu:hover{border-color:#c9d4e6;box-shadow:var(--sh-1)}
.stu.flag{border-color:#f2c3c5;background:#fffafa}
.stu.head{display:flex;align-items:center;gap:8px;margin-bottom:7px}
.stu .nm{font-weight:650;font-size:13px}
.mark{display:inline-block;min-width:26px;text-align:center;padding:1px 6px;border-radius:6px;font-weight:700;font-size:12.5px;font-variant-numeric:tabular-nums}
.mark.full{background:var(--ok-soft);color:#0b7a44}
.mark.part{background:var(--warn-soft);color:#9a6a12}
.mark.zero{background:var(--danger-soft);color:#b8323a}
.anno{font-size:12px;border-left:3px solid var(--accent);background:#f7f9ff;padding:6px 9px;border-radius:0 6px 6px 0;margin-top:6px;color:var(--ink-2);white-space:pre-wrap}
.anno.teacher{border-left-color:var(--purple);background:#faf8ff}
.anno.ai{border-left-color:var(--accent)}
.stamp{display:inline-block;border:1.5px solid var(--ok);color:var(--ok);border-radius:6px;padding:1px 8px;font-weight:700;font-size:11.5px;transform:rotate(-3deg)}
.stamp.ai{border-color:var(--warn);color:#9a6a12}

/* ---------- 富文本 ---------- */
.prose{font-size:13.5px;line-height:1.75;color:var(--ink-2)}
.prose h1{font-size:22px;color:var(--ink);margin:22px 0 10px}
.prose h2{font-size:17px;color:var(--ink);margin:20px 0 8px;padding-left:9px;border-left:3px solid var(--accent)}
.prose h3{font-size:14.5px;color:var(--ink);margin:16px 0 6px}
.prose table{width:100%;border-collapse:collapse;font-size:12.5px;margin:10px 0}
.prose th,.prose td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}
.prose th{background:var(--panel-2);font-weight:650}
.prose ul,.prose ol{margin:6px 0 12px;padding-left:22px}
.prose li{margin-bottom:4px}
.prose code{background:#f1f4f9;padding:1px 5px;border-radius:4px;font-size:12px}
.prose pre{background:#131c2e;color:#e6eefc;padding:12px;border-radius:var(--r-sm);overflow:auto;font-size:12.5px}
.prose blockquote{border-left:3px solid var(--line);margin:0 0 12px;padding:2px 0 2px 12px;color:var(--muted)}
.prose hr{border:0;border-top:1px solid var(--line);margin:18px 0}

/* ---------- 大屏 ---------- */
.screen{background:#0a1020;color:#eaf1ff;min-height:100vh}
.screen .hd{padding:18px 30px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;align-items:center;gap:16px}
.screen .bd{padding:24px 30px}
.screen .card{background:#111a2e;border-color:rgba(255,255,255,.1);color:#eaf1ff}
.screen .card-hd{background:#141e35;border-color:rgba(255,255,255,.08)}
.screen .kpi{background:#111a2e;border-color:rgba(255,255,255,.1);color:#eaf1ff}
.screen .kpi .k,.screen .kpi .d{color:#93a2bd}
.screen table.tb th{background:#141e35;color:#b7c4da;border-color:rgba(255,255,255,.08)}
.screen table.tb td{border-color:rgba(255,255,255,.06);color:#dbe5f7}
.screen .mark.full{background:rgba(15,157,88,.22);color:#5ee3a1}
.screen .mark.part{background:rgba(232,163,61,.22);color:#ffd184}
.screen .mark.zero{background:rgba(229,72,77,.22);color:#ff9ea1}
.screen .bars .b .t{color:#b7c4da}
.screen .bars .b .track{background:rgba(255,255,255,.08)}

/* ---------- 打印 ---------- */
@media print{
  .side,.topbar,.no-print,.btn,.modal-ft{display:none!important}
  body{background:#fff}
  .app{grid-template-columns:1fr}
  .card{box-shadow:none;border-color:#ddd;break-inside:avoid}
  .wrap{padding:0}
  .print-area{display:block!important}
}
.print-only{display:none}
@media print{.print-only{display:block}}

/* ---------- 其他 ---------- */
.hr{border:0;border-top:1px solid var(--line);margin:14px 0}
.kv{display:grid;grid-template-columns:104px 1fr;gap:6px 10px;font-size:13px}
.kv dt{color:var(--muted);font-size:12.5px}
.kv dd{margin:0}
.pill-switch{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2)}
.sw{width:42px;height:23px;border-radius:20px;background:#d5ddea;position:relative;cursor:pointer;transition:.18s;flex:0 0 42px}
.sw::after{content:"";position:absolute;top:2.5px;left:2.5px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.18s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.sw.on{background:var(--accent)}
.sw.on::after{left:21.5px}
.scroll-x{overflow-x:auto}
.mt0{margin-top:0}.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}
.mb0{margin-bottom:0}.mb8{margin-bottom:8px}.mb12{margin-bottom:12px}
.hidden{display:none!important}
.tc-1{background:linear-gradient(90deg,#2f6bff,#4a7dff)}.tc-2{background:linear-gradient(90deg,#7c5cff,#9b7dff)}
.tc-3{background:linear-gradient(90deg,#0fb5a5,#2ad4c2)}.tc-4{background:linear-gradient(90deg,#e8a33d,#f5c46a)}
.tc-5{background:linear-gradient(90deg,#e5484d,#f27f83)}.tc-6{background:linear-gradient(90deg,#12b76a,#37d08a)}

/* 云同步状态徽标 */
.sync-badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:4px 9px;border-radius:999px;cursor:pointer;white-space:nowrap;border:1px solid transparent;user-select:none}
.sync-badge.gray{background:#eef1f6;color:#6b7280;border-color:#e2e6ee}
.sync-badge.ok{background:#e7f8ef;color:#12b76a;border-color:#bdecd1}
.sync-badge.warn{background:#fff4e0;color:#d98b18;border-color:#f3dca6}
.sync-badge .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:currentColor;animation:syncpulse 1s infinite}
@keyframes syncpulse{0%{opacity:.3}50%{opacity:1}100%{opacity:.3}}

/* ---------- 原卷批阅 OIG ---------- */
.oig-page{position:relative;max-width:760px;margin:auto;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.oig-box{position:absolute;border:2px dashed #2f6bff;background:rgba(47,107,255,.06);box-sizing:border-box;display:flex;align-items:flex-start;justify-content:flex-start}
.oig-no{position:absolute;top:-11px;left:6px;background:#2f6bff;color:#fff;font-size:11px;font-weight:700;padding:1px 7px;border-radius:8px}
.oig-q{width:240px;border:1px solid var(--line);border-radius:10px;padding:8px;background:#fff}
.oig-qh{font-weight:650;font-size:13px;margin-bottom:6px;display:flex;gap:6px;align-items:center}
.oig-cmp{display:flex;gap:8px}
.oig-c{flex:1;border:1px solid var(--line-2);border-radius:8px;overflow:hidden;background:#fcfdff}
.oig-c img{width:100%;display:block;background:#fff}
.oig-cap{font-size:11px;color:var(--muted);padding:3px 6px;background:#f3f6fb;border-bottom:1px solid var(--line-2)}
.oig-latex{font-size:12px;padding:4px 6px;color:#1b3a8c;font-family:'Cambria Math','Times New Roman',serif;min-height:18px;word-break:break-all}
.oig-meta{font-size:12px;color:var(--ink-2);margin-top:6px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.table-wrap{max-height:300px;overflow:auto;border-radius:8px}

/* ---------- 数学识别（TW.MathOCR）：公式预览 / 引擎设置 / 可疑标记 ---------- */
.imp-eng{margin-top:2px}
.imp-eng code{background:var(--panel-2);border:1px solid var(--line-2);padding:0 4px;border-radius:4px;font-size:11px}
.qrow-math{margin:8px 12px 0;padding:8px 10px;border:1px dashed var(--line);border-radius:var(--r-sm);background:var(--panel-2);font-size:12.5px;line-height:2.1;min-height:32px;word-break:break-word}
.qrow-math .moi-tex{font-size:14px}
.qrow-math .moi-plain{color:var(--muted)}
.imp-flag{margin:8px 12px 0;padding:6px 10px;border-radius:var(--r-sm);background:var(--warn-soft);border:1px solid #f5debb;color:#8a5f13;font-size:11.5px;line-height:1.55}
.imp-flag b{font-family:'Cambria Math','Times New Roman',serif}
.katex{font-size:1.03em}

/* ---------- 原卷批阅工作台（TW.TPL）：模板编辑器 / 区域叠加 / 批阅台 / 上传 ---------- */
.tpl-canvas .tpl-region{position:absolute;border:2px solid #2f6bff;background:rgba(47,107,255,.07);box-sizing:border-box;cursor:move;touch-action:none}
.tpl-canvas .tpl-region.math{border-color:#c0392b;background:rgba(192,57,43,.08)}
.tpl-canvas .tpl-region.sub{border-color:#7d4bc0;background:rgba(125,75,192,.07)}
.tpl-canvas .tpl-region-no{position:absolute;top:-12px;left:4px;background:#2f6bff;color:#fff;font-size:11px;font-weight:700;padding:1px 7px;border-radius:8px;white-space:nowrap}
.tpl-canvas .tpl-region.math .tpl-region-no{background:#c0392b}
.tpl-canvas .tpl-region.stuid{border-color:#12805c;border-style:dashed;background:rgba(18,128,92,.10)}
.tpl-canvas .tpl-region.stuid .tpl-region-no{background:#12805c}
.tpl-canvas .tpl-region.stuid .tpl-handle{border-color:#12805c}
.tpl-canvas .tpl-handle{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid #2f6bff;cursor:nwse-resize;touch-action:none}
.tpl-rform{border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin-bottom:8px;background:#fff}
.tpl-rform-hd{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tpl-rform-bd{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.tpl-rform-bd label{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--muted);flex:1;min-width:150px}
.tpl-rform-bd .input{width:100%}
.chk{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--ink-2);white-space:nowrap}
.oig-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.oig-page-card{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.oig-page-card img{width:100%;display:block;max-height:160px;object-fit:contain;background:#f7f9fc}
.oig-page-ph{height:120px;display:flex;align-items:center;justify-content:center;color:var(--muted);background:#f7f9fc}
.oig-page-meta{padding:6px 8px;font-size:12px;display:flex;flex-direction:column;gap:3px}
.oig-page-card .btn{margin:0 8px 8px}
.oig-page-ops{display:flex;flex-wrap:wrap;gap:6px;padding:0 8px 8px}
.oig-page-card.oig-x{opacity:.72;border-style:dashed}
.oig-summary{margin-bottom:10px}
.oig-unassigned{border:1px dashed var(--warn,#e8a93a);background:#fff8ec;border-radius:10px;padding:10px 12px;margin-bottom:6px}
.oig-urow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:5px 0;border-bottom:1px solid #f0e6d2}
.oig-urow:last-child{border-bottom:none}
.oig-ucode{font-weight:600;min-width:160px}
/* ---------- 连续阅卷台（整页叠加 + 键盘给分） ---------- */
.live-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:start}
.live-img{position:relative;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;max-height:78vh;overflow:auto}
.live-img img{width:100%;display:block;background:#fff}
.live-ov{position:absolute;border:1.5px solid rgba(31,138,76,.85);background:rgba(31,138,76,.08);border-radius:4px;cursor:pointer;display:flex;flex-direction:column;justify-content:flex-start;align-items:flex-start;font-size:11px;line-height:1.1;overflow:hidden;transition:background .12s,border-color .12s}
.live-ov:hover{background:rgba(31,138,76,.18);border-color:#1f8a4c}
.live-ov-no{background:rgba(31,138,76,.9);color:#fff;font-weight:700;padding:1px 5px;border-radius:0 0 4px 0}
.live-ov-sc{position:absolute;right:2px;bottom:2px;background:#fff;border:1px solid #1f8a4c;color:#1f8a4c;font-weight:700;border-radius:6px;padding:0 5px;font-size:12px}
.live-ov-sc.on{background:#1f8a4c;color:#fff}
.live-side{border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px;max-height:78vh;overflow:auto}
.lr{display:flex;align-items:center;gap:6px;padding:5px 6px;border-radius:7px;border:1px solid transparent;cursor:pointer}
.lr:hover{background:#f5f8fc}
.lr.on{background:#eef6ff;border-color:#9ec5ff}
.lr-no{font-weight:700;min-width:22px;text-align:center}
.lr-tp{font-size:11px}
.lr-max{font-size:11px;color:var(--muted);min-width:42px}
.lr-score{width:56px;text-align:center;margin-left:auto}
.lr-lk{font-size:12px}
.live-foot{margin-top:12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

.grade-cells{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.grade-cell{border:1px solid var(--line);border-radius:12px;padding:10px;background:#fff;display:flex;flex-direction:column;gap:6px}
.gc-hd{font-weight:650;font-size:13px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.gc-img{border:1px solid var(--line-2);border-radius:8px;overflow:hidden;background:#fff}
.gc-img img{width:100%;display:block;max-height:170px;object-fit:contain;background:#fff}
.gc-rec{font-size:13px;line-height:1.5;word-break:break-word}
.gc-rec code.latex{display:block;background:var(--panel-2);border:1px solid var(--line-2);padding:3px 6px;border-radius:6px;color:#1b3a8c;font-family:'Cambria Math','Times New Roman',serif;margin-top:3px;word-break:break-all}
.gc-conf{font-size:12px;color:var(--ink-2);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.gc-verdict{font-size:12px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.gc-score{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:2px}

/* ---------- 拓展模块（对标慧阅卷）：账号/题库/答题卡/考场/条码/任务分配/发布/分析/错题 ---------- */
.tag{display:inline-block;font-size:11px;padding:1px 8px;border-radius:10px;background:var(--panel-2, #f3f6fb);color:var(--ink-2, #445);border:1px solid var(--line, #e6ebf2)}
.tag.hot{background:#fde8e8;color:#c0392b;border-color:#f3c4c4}
.tag.ok{background:#e6f6ec;color:#1f8a4c;border-color:#bfe6cc}
.tag.dan{background:#fde8e8;color:#c0392b;border-color:#f3c4c4}
.tag.warn{background:#fff4e0;color:#9a6a13;border-color:#f3debf}
.tag.pur{background:#efe7fb;color:#6b3fb0;border-color:#d8c7f0}
.tag.info{background:#e7f0ff;color:#2456c9;border-color:#c5d8f5}
.card-mini{border:1px solid var(--line, #e6ebf2);border-radius:10px;padding:10px;background:#fff;margin-bottom:8px}
.qpick{max-height:200px;overflow:auto;border:1px solid var(--line, #e6ebf2);border-radius:8px;padding:8px;background:#fff}
.qrow{display:block;font-size:12.5px;padding:4px 6px;border-radius:6px;cursor:pointer}
.qrow:hover{background:var(--panel-2, #f3f6fb)}
.qrow input{margin-right:6px}
.acard{box-shadow:0 1px 4px rgba(0,0,0,.08)}