/* ===========================================================
   点石成金 AI 学习系统 —— 主样式（浅色主题）
   =========================================================== */
:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --primary-light:#eff6ff;
  --accent:#f59e0b; --success:#10b981; --danger:#ef4444; --purple:#8b5cf6;
  --bg:#f5f7fb; --card:#ffffff; --text:#2b3445; --text2:#5b6577; --muted:#8b95a7;
  --border:#e8edf5; --border2:#f1f4f9;
  --radius:14px; --radius-sm:10px;
  --shadow:0 2px 10px rgba(23,43,77,.06);
  --shadow-lg:0 8px 30px rgba(23,43,77,.10);
  --sidebar-w:236px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}

/* ---------- 布局 ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:#fff;border-right:1px solid var(--border);
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;z-index:20;
}
.brand{padding:20px 22px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border2)}
.brand .logo{
  width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;font-weight:800;
}
.brand .name{font-size:16px;font-weight:800;line-height:1.2}
.brand .slogan{font-size:11px;color:var(--muted);margin-top:2px}
.nav{padding:14px 12px;flex:1;overflow:auto}
.nav-group{font-size:11px;color:var(--muted);padding:14px 12px 6px;letter-spacing:.06em}
.nav a{
  display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:var(--radius-sm);
  color:var(--text2);font-size:14px;font-weight:500;margin-bottom:2px;transition:.15s;
}
.nav a .ic{font-size:17px;width:22px;text-align:center}
.nav a:hover{background:var(--border2);color:var(--text)}
.nav a.active{background:var(--primary-light);color:var(--primary);font-weight:600}
.nav a .badge{margin-left:auto;background:var(--danger);color:#fff;font-size:11px;padding:1px 7px;border-radius:9px}
.sidebar-foot{padding:14px;border-top:1px solid var(--border2)}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  height:60px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;
  padding:0 24px;gap:16px;position:sticky;top:0;z-index:15;
}
.topbar .title{font-size:17px;font-weight:700}
.topbar .crumb{font-size:13px;color:var(--muted)}
.topbar .right{margin-left:auto;display:flex;align-items:center;gap:14px}
.content{padding:24px;flex:1}
.container{max-width:1220px;margin:0 auto}

/* ---------- 通用组件 ---------- */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.card.pad0{padding:0;overflow:hidden}
.card-hd{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.card-hd h3{font-size:16px}
.card-hd .more{margin-left:auto;font-size:13px;color:var(--primary)}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;cursor:pointer;transition:.15s;
}
.btn:hover{border-color:#c9d4e5;background:#fafbfe}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn.ghost{background:transparent}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn.danger{color:var(--danger);border-color:#fbd5d5}
.btn:disabled{opacity:.5;cursor:not-allowed}

.chip{
  display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:20px;
  background:var(--border2);color:var(--text2);font-size:13px;cursor:pointer;transition:.15s;border:1px solid transparent;
}
.chip:hover{border-color:#cfdaea}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip.sm{padding:3px 9px;font-size:12px}

.badge{display:inline-block;padding:2px 8px;border-radius:6px;font-size:12px;font-weight:600}
.badge.green{background:#e7f8f1;color:#0a8f5f}
.badge.blue{background:#e8f1ff;color:#1d4ed8}
.badge.orange{background:#fef4e6;color:#b45309}
.badge.red{background:#fdeaea;color:#c22b2b}
.badge.gray{background:#f1f4f9;color:#7a869a}
.badge.purple{background:#f1eaff;color:#6d28d9}

.progress{height:8px;background:var(--border2);border-radius:6px;overflow:hidden}
.progress > i{display:block;height:100%;background:var(--primary);border-radius:6px;transition:width .4s}
.progress.thin{height:5px}

.empty{text-align:center;padding:44px 20px;color:var(--muted)}
.empty .ico{font-size:44px;display:block;margin-bottom:10px;opacity:.6}

table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th{
  text-align:left;padding:11px 12px;color:var(--muted);font-weight:600;font-size:13px;
  border-bottom:1px solid var(--border);background:#fafbfe;
}
table.tbl td{padding:12px;border-bottom:1px solid var(--border2);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:#fafbfe}

.form-label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:6px}
.form-control,select.form-control,textarea.form-control{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:14px;font-family:inherit;background:#fff;color:var(--text);outline:none;transition:.15s;
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea.form-control{min-height:88px;resize:vertical}
.field{margin-bottom:16px}

/* ---------- 统计卡片 ---------- */
.stat{
  background:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:14px;
}
.stat .ic{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:22px;flex:0 0 46px;
}
.stat .num{font-size:24px;font-weight:800;line-height:1.15}
.stat .lbl{font-size:12.5px;color:var(--muted);margin-top:2px}
.stat .sub{font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:0}
.tl-day{margin-bottom:18px}
.tl-day-hd{
  display:flex;align-items:center;gap:10px;padding:9px 14px;background:#fff;border-radius:var(--radius-sm);
  border:1px solid var(--border);margin-bottom:10px;position:sticky;top:60px;z-index:5;
}
.tl-day-hd .date{font-weight:700;font-size:14px}
.tl-day-hd .wd{font-size:12px;color:var(--muted)}
.tl-day-hd.today{background:linear-gradient(90deg,#eff6ff,#fff);border-color:#bfdbfe}
.tl-day-hd.today .date{color:var(--primary)}
.tl-day-hd .sum{margin-left:auto;font-size:12.5px;color:var(--muted)}
.tl-items{display:flex;flex-direction:column;gap:8px;padding-left:14px;border-left:2px solid var(--border);margin-left:12px}
.tl-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:11px 14px;
  display:flex;align-items:center;gap:12px;transition:.15s;position:relative;
}
.tl-item:before{
  content:"";position:absolute;left:-19px;top:18px;width:9px;height:9px;border-radius:50%;
  background:#cfdaea;border:2px solid #fff;
}
.tl-item.done:before{background:var(--success)}
.tl-item.overdue{border-color:#fbd5d5;background:#fffafa}
.tl-item:hover{box-shadow:var(--shadow)}
.tl-item .check{
  width:22px;height:22px;border-radius:7px;border:2px solid #cfdaea;flex:0 0 22px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;transition:.15s;
}
.tl-item .check:hover{border-color:var(--primary)}
.tl-item.done .check{background:var(--success);border-color:var(--success)}
.tl-item .body{flex:1;min-width:0}
.tl-item .t{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tl-item.done .t{color:var(--muted);text-decoration:line-through}
.tl-item .meta{font-size:12px;color:var(--muted);margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.tl-item .ops{display:flex;gap:6px;opacity:.55;transition:.15s}
.tl-item:hover .ops{opacity:1}

/* ---------- 甘特 ---------- */
.gantt-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff}
.gantt{min-width:640px}
.gantt-hd{display:flex;border-bottom:1px solid var(--border);background:#fafbfe;position:sticky;top:0}
.gantt-hd .cell{flex:0 0 34px;text-align:center;font-size:10px;color:var(--muted);padding:6px 0;border-right:1px solid var(--border2)}
.gantt-hd .cell.we{background:#fff7ed}
.gantt-hd .lbl{flex:0 0 200px;padding:8px 12px;font-size:12px;font-weight:600;color:var(--text2)}
.gantt-row{display:flex;border-bottom:1px solid var(--border2);align-items:center}
.gantt-row .lbl{flex:0 0 200px;padding:8px 12px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gantt-row .cell{flex:0 0 34px;height:30px;border-right:1px solid var(--border2);display:flex;align-items:center;justify-content:center}
.gantt-row .cell.we{background:#fffaf3}
.gantt-row .bar{height:16px;border-radius:4px;width:26px}

/* ---------- 教材 ---------- */
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(228px,1fr));gap:16px}
.book-card{
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  transition:.18s;cursor:pointer;border:1px solid transparent;
}
.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#dbe6f5}
.book-cover{
  height:104px;display:flex;align-items:flex-end;padding:12px 14px;color:#fff;position:relative;
}
.book-cover .ic{position:absolute;right:12px;top:12px;font-size:34px;opacity:.28}
.book-cover .nm{font-weight:700;font-size:15px;line-height:1.35;text-shadow:0 1px 3px rgba(0,0,0,.18)}
.book-cover .sub{font-size:11.5px;opacity:.9;margin-top:3px}
.book-body{padding:13px 14px}
.book-body .meta{font-size:12.5px;color:var(--muted);display:flex;justify-content:space-between;margin-bottom:8px}

.unit-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;background:#fff;overflow:hidden}
.unit-hd{display:flex;align-items:center;gap:10px;padding:13px 15px;cursor:pointer;transition:.15s}
.unit-hd:hover{background:#fafbfe}
.unit-hd .arrow{transition:transform .2s;color:var(--muted);font-size:12px}
.unit-item.open .unit-hd .arrow{transform:rotate(90deg)}
.unit-hd .n{font-weight:700;font-size:14px;flex:1;min-width:0}
.unit-hd .goal{font-size:12px;color:var(--muted);margin-top:2px;font-weight:400}
.lesson-list{display:none;border-top:1px solid var(--border2);padding:6px 0}
.unit-item.open .lesson-list{display:block}
.lesson-row{
  display:flex;align-items:center;gap:11px;padding:9px 15px 9px 34px;font-size:13.5px;
  border-bottom:1px solid #f7f9fc;transition:.12s;
}
.lesson-row:hover{background:#fafbfe}
.lesson-row:last-child{border-bottom:none}
.lesson-row .dot{width:7px;height:7px;border-radius:50%;background:#cfdaea;flex:0 0 7px}
.lesson-row.done .dot{background:var(--success)}
.lesson-row .nm{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lesson-row.done .nm{color:var(--muted)}

/* ---------- 热力图 ---------- */
.heatmap{display:flex;gap:3px;overflow-x:auto;padding-bottom:4px}
.heat-col{display:flex;flex-direction:column;gap:3px}
.heat-cell{width:12px;height:12px;border-radius:3px;background:#eef2f8}
.heat-cell[data-l="1"]{background:#cfe3fd}
.heat-cell[data-l="2"]{background:#93c5fd}
.heat-cell[data-l="3"]{background:#60a5fa}
.heat-cell[data-l="4"]{background:#2563eb}
.heat-legend{display:flex;align-items:center;gap:5px;font-size:11.5px;color:var(--muted);margin-top:8px}

/* ---------- AI 对话 ---------- */
.chat-wrap{display:flex;flex-direction:column;height:calc(100vh - 210px);min-height:420px}
.chat-box{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:14px}
.msg{display:flex;gap:10px;max-width:88%}
.msg.me{align-self:flex-end;flex-direction:row-reverse}
.msg .avatar{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);font-size:16px;
}
.msg.me .avatar{background:var(--primary);color:#fff}
.bubble{
  background:#f4f6fa;border-radius:4px 12px 12px 12px;padding:11px 14px;font-size:14px;line-height:1.7;
  white-space:pre-wrap;word-break:break-word;
}
.msg.me .bubble{background:var(--primary);color:#fff;border-radius:12px 4px 12px 12px}

/* ---------- AI 气泡内 Markdown 排版 ---------- */
.bubble.md{white-space:normal;line-height:1.75}
.bubble.md p{margin:0 0 8px}
.bubble.md p:last-child{margin-bottom:0}
.bubble.md .md-h{font-weight:700;margin:2px 0 8px;color:#1f2733;line-height:1.4}
.bubble.md h1.md-h{font-size:17px}
.bubble.md h2.md-h{font-size:16px}
.bubble.md h3.md-h{font-size:15px}
.bubble.md ul.md-ul,.bubble.md ol.md-ol{margin:6px 0 10px;padding-left:22px}
.bubble.md ul.md-ul{list-style:disc}
.bubble.md ol.md-ol{list-style:decimal}
.bubble.md li{margin:4px 0}
.bubble.md .md-quote{margin:8px 0;padding:8px 12px;border-left:3px solid var(--primary);background:rgba(59,130,246,.06);border-radius:6px;color:var(--text2)}
.bubble.md .md-code{margin:8px 0;padding:10px 12px;background:#0f172a;color:#e2e8f0;border-radius:8px;font-size:12.5px;overflow:auto;white-space:pre}
.bubble.md code.md-ic{background:#eef2f8;padding:1px 5px;border-radius:4px;font-size:12.5px;color:#d6336c}
.bubble.md .md-tag{display:inline-block;font-weight:700;color:var(--primary)}
/* 用户气泡（蓝底白字）内的 markdown 保持可读 */
.msg.me .bubble.md .md-h{color:#fff}
.msg.me .bubble.md .md-quote{background:rgba(255,255,255,.14);border-left-color:#fff;color:#fff}
.msg.me .bubble.md code.md-ic{background:rgba(255,255,255,.22);color:#fff}
.chat-input{display:flex;gap:10px;padding:14px;border-top:1px solid var(--border);background:#fff}
.chat-input input{flex:1}
.quick-q{display:flex;gap:8px;flex-wrap:wrap;padding:0 18px 12px}

/* ---------- 知识树 / 侧栏 ---------- */
.side-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:16px}
.side-card h4{font-size:14px;margin-bottom:12px;display:flex;align-items:center;gap:7px}
.kp-item{padding:10px 0;border-bottom:1px dashed var(--border2)}
.kp-item:last-child{border-bottom:none}
.kp-item .t{font-weight:600;font-size:13.5px}
.kp-item .c{font-size:12.5px;color:var(--text2);margin-top:4px;line-height:1.65}
.stars{color:var(--accent);font-size:12px;letter-spacing:1px}

/* ---------- 其他 ---------- */
.chart-svg{width:100%;height:220px;display:block}
.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:13.5px;margin-bottom:16px}
.alert.info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}
.alert.warn{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}
.alert.ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}
.toast{
  position:fixed;left:50%;top:22px;transform:translateX(-50%);z-index:999;
  background:#1f2937;color:#fff;padding:11px 20px;border-radius:10px;font-size:14px;
  box-shadow:var(--shadow-lg);animation:tin .25s;
}
@keyframes tin{from{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%,0)}}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.flex1{flex:1}
.nowrap{white-space:nowrap}
.mb0{margin-bottom:0}
.mt8{margin-top:8px}
.mt16{margin-top:16px}
.center{text-align:center}

/* ---------- 登录/注册 ---------- */
.auth-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eef4ff 0%,#f7f8ff 45%,#fff5ec 100%);padding:24px;
}
.auth-box{width:100%;max-width:400px;background:#fff;border-radius:20px;padding:34px;box-shadow:var(--shadow-lg)}
.auth-box .logo{
  width:52px;height:52px;border-radius:15px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin:0 auto 12px;
}
.auth-box h2{text-align:center;font-size:21px;margin-bottom:4px}
.auth-box .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:24px}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .sidebar{position:fixed;left:-240px;transition:left .2s;box-shadow:var(--shadow-lg)}
  .sidebar.show{left:0}
  .content{padding:16px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .topbar{padding:0 16px}
  .mask{position:fixed;inset:0;background:rgba(15,23,42,.35);z-index:19}
}
.menu-btn{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text)}
@media (max-width:860px){ .menu-btn{display:block} }

/* =========================================================
   选择教材 / 年级向导  +  学习地图
   ========================================================= */
.input{
  padding:9px 12px;border:1px solid var(--border);border-radius:9px;font-size:14px;
  background:#fff;color:var(--text);outline:none;transition:.15s;font-family:inherit;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.input.sm{padding:5px 9px;font-size:13px;border-radius:7px}
.chip.on{background:var(--primary);color:#fff;border-color:var(--primary)}

.setup-wrap{max-width:820px;margin:0 auto}
.setup-head{text-align:center;margin-bottom:22px}
.setup-head h2{font-size:23px;margin-bottom:6px}
.setup-step{
  display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:20px;margin-bottom:14px;box-shadow:var(--shadow);
}
.step-no{
  flex:0 0 34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.step-body{flex:1;min-width:0}
.step-body h3{font-size:16px;margin-bottom:2px}
.step-body h3 .small{font-weight:400;margin-left:6px}

/* 年级大按钮 */
.grade-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:12px}
.grade-card{position:relative;cursor:pointer}
.grade-card input{position:absolute;opacity:0;inset:0;cursor:pointer}
.g-in{
  display:block;border:2px solid var(--border);border-radius:12px;padding:10px 6px;text-align:center;
  background:#fff;transition:.15s;
}
.grade-card:hover .g-in{border-color:#b9cbe8;background:#fafcff}
.grade-card input:checked + .g-in{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.g-stage{display:block;font-size:11px;color:var(--muted)}
.g-name{display:block;font-size:15px;font-weight:700;margin-top:2px}
.grade-card input:checked + .g-in .g-name{color:var(--primary)}

/* 教材版本展示 */
.ver-box{margin-top:14px;border:1px solid var(--border);border-radius:11px;overflow:hidden}
.ver-hd{
  display:flex;justify-content:space-between;align-items:center;padding:9px 13px;
  background:var(--border2);font-size:13px;font-weight:600;border-bottom:1px solid var(--border);
}
.ver-hd .link{color:var(--primary);font-weight:500;font-size:13px;text-decoration:none}
.ver-list{display:grid;grid-template-columns:repeat(3,1fr);gap:6px 14px;padding:12px 13px}
.ver-item{display:flex;align-items:center;gap:7px;font-size:13.5px;padding:3px 0}
.vi-ic{font-size:16px}
.vi-sub{color:var(--text2)}
.vi-ver{margin-left:auto;font-weight:700;color:var(--primary)}
.ver-edit{padding:12px 13px;border-top:1px dashed var(--border);display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.ver-row{display:flex;align-items:center;gap:8px;font-size:13.5px}
.vr-name{flex:1;white-space:nowrap}

/* 每天时长 */
.min-grid{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.min-card{
  padding:11px 20px;border:2px solid var(--border);border-radius:11px;background:#fff;
  font-size:14px;cursor:pointer;transition:.15s;font-family:inherit;color:var(--text);
}
.min-card b{font-size:19px;margin-right:2px}
.min-card:hover{border-color:#b9cbe8}
.min-card.on{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}
.setup-foot{margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn.big{padding:12px 30px;font-size:16px;border-radius:11px}

/* 首页档位条 */
.pb{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:16px 18px}
.pb-l{display:flex;align-items:center;gap:13px;flex:1;min-width:230px}
.pb-l .avatar{
  width:46px;height:46px;border-radius:50%;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;font-size:25px;flex:0 0 46px;
}
.pb-name{font-size:17px;font-weight:700}
.pb-r{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.pb-stat{text-align:center;min-width:62px}
.pb-stat b{display:block;font-size:17px;font-weight:800;color:var(--primary)}
.pb-stat small{font-size:12px;font-weight:600}
.pb-stat span{font-size:11.5px;color:var(--muted)}

/* 学科进度卡 */
.subj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:12px}
.subj-card{
  border:1px solid var(--border);border-radius:12px;padding:13px 14px;background:#fff;
  display:flex;flex-direction:column;gap:2px;transition:.15s;
}
.subj-card:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.sc-top{display:flex;align-items:center;gap:7px;font-size:15px}
.sc-next{
  margin-top:7px;font-size:13px;color:var(--text2);background:var(--border2);
  border-radius:8px;padding:7px 9px;line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.sc-ops{display:flex;gap:7px;margin-top:9px}

/* 学习地图 */
.rm-card{margin-bottom:14px;padding:16px 18px}
.rm-hd{display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap}
.rm-title{display:flex;align-items:center;gap:11px}
.rm-ic{font-size:26px}
.rm-pct{text-align:right}
.next-box{
  display:flex;align-items:center;gap:10px;margin:12px 0 4px;padding:9px 12px;
  background:linear-gradient(135deg,#eff6ff,#f5f3ff);border-radius:10px;
}
.nb-tag{
  background:var(--primary);color:#fff;font-size:12px;padding:2px 8px;border-radius:6px;font-weight:600;flex:0 0 auto;
}
.nb-txt{flex:1;min-width:0;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rm-book{margin-top:8px;border-top:1px solid var(--border2);padding-top:8px}
.rm-book summary{
  display:flex;align-items:center;gap:10px;cursor:pointer;padding:7px 0;font-size:14px;list-style:none;
}
.rm-book summary::-webkit-details-marker{display:none}
.bk-name{font-weight:600}
.bk-bar{flex:1;height:5px;background:var(--border2);border-radius:4px;overflow:hidden;min-width:60px}
.bk-bar > i{display:block;height:100%;border-radius:4px}
.rm-units{padding:4px 0 8px 6px}
.rm-unit{padding:7px 0;border-bottom:1px dashed var(--border2)}
.uu-hd{display:flex;justify-content:space-between;font-size:13.5px;font-weight:600;margin-bottom:5px}
.uu-lessons{display:flex;flex-wrap:wrap;gap:6px}
.uu-lessons .ls{
  font-size:12.5px;padding:4px 9px;border-radius:7px;background:var(--border2);
  color:var(--text2);text-decoration:none;transition:.15s;
}
.uu-lessons .ls:hover{background:var(--primary-light);color:var(--primary)}
.uu-lessons .ls.done{background:#ecfdf5;color:#059669}

@media (max-width:860px){
  .grade-grid{grid-template-columns:repeat(4,1fr)}
  .ver-list{grid-template-columns:repeat(2,1fr)}
  .ver-edit{grid-template-columns:1fr}
  .setup-step{padding:16px}
}

/* =========================================================
   产品重构：面向小学生的极简界面
   ========================================================= */
/* 顶部年级/地区徽章 */
.me-badge{
  display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:20px;
  background:var(--primary-light);text-decoration:none;transition:.15s;
}
.me-badge:hover{background:#dbeafe}
.mb-grade{font-weight:700;color:var(--primary);font-size:14px}
.mb-region{font-size:13px;color:var(--text2)}

/* 欢迎条 */
.hi-box{
  display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:16px 18px;margin-bottom:14px;box-shadow:var(--shadow);flex-wrap:wrap;
}
.hi-av{width:52px;height:52px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:28px;flex:0 0 52px}
.hi-txt{flex:1;min-width:200px}
.hi-name{font-size:20px;font-weight:800}
.hi-sub{display:flex;gap:8px;flex-wrap:wrap;margin-top:5px}
.tag{background:var(--border2);border-radius:20px;padding:3px 11px;font-size:12.5px;color:var(--text2)}
.hi-num{display:flex;gap:18px}
.hi-num div{text-align:center}
.hi-num b{display:block;font-size:18px;color:var(--primary);font-weight:800}
.hi-num span{font-size:11.5px;color:var(--muted)}

/* 引导条 */
.guide-bar{
  display:flex;align-items:center;gap:14px;padding:14px 16px;margin-bottom:14px;
  background:linear-gradient(135deg,#eff6ff,#f5f3ff);border:1px solid #dbeafe;border-radius:13px;flex-wrap:wrap;
}
.guide-bar.warn{background:linear-gradient(135deg,#fff7ed,#fef3c7);border-color:#fde68a}
.gb-n{
  flex:0 0 32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;
}
.guide-bar.warn .gb-n{background:#f59e0b}
.gb-t{flex:1;min-width:200px}
.gb-t b{display:block;font-size:15px}
.gb-t span{font-size:13px;color:var(--muted)}

/* 今日任务 */
.today-card{padding-bottom:6px}
.tc-hd{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--border2);flex-wrap:wrap}
.tc-hd h2{font-size:19px}
.task-list{padding:6px 0}
.task-row{
  display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--border2);
}
.task-row:last-child{border-bottom:none}
.tr-no{
  flex:0 0 26px;height:26px;border-radius:50%;background:var(--border2);color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.tr-ic{font-size:24px;flex:0 0 auto}
.tr-body{flex:1;min-width:0}
.tr-title{font-size:15.5px;font-weight:600;margin-bottom:3px}
.tr-meta{display:flex;gap:8px;align-items:center;font-size:12.5px;flex-wrap:wrap}
.tr-ops{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.done-btn{
  width:44px;height:44px;border-radius:50%;border:2px solid var(--border);background:#fff;
  color:var(--muted);font-size:20px;cursor:pointer;transition:.15s;font-family:inherit;
}
.done-btn:hover{border-color:#10b981;color:#10b981;background:#ecfdf5;transform:scale(1.06)}
.big-empty{padding:34px 18px}
.big-empty .ico{font-size:44px}
.big-empty .e-t{font-size:17px;font-weight:700;margin-top:8px}
.big-empty .e-s{font-size:13.5px;color:var(--muted);margin-top:4px}

/* 课本绘本卡 */
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;padding:14px}
.book-card{
  border:1px solid var(--border);border-radius:13px;overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:.18s;
}
.book-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.book-card.pick{cursor:pointer}
.bc-cover{
  height:104px;background:var(--c);
  background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%, #ffffff));
  display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;position:relative;
}
.bc-cover::after{content:"";position:absolute;left:10px;top:0;bottom:0;width:3px;background:rgba(255,255,255,.45)}
.bc-ic{font-size:32px}
.bc-sub{font-size:16px;font-weight:800;margin-top:2px}
.bc-ver{font-size:11.5px;opacity:.92;margin-top:2px;background:rgba(255,255,255,.22);padding:1px 8px;border-radius:10px}
.bc-body{padding:11px 13px 13px;flex:1;display:flex;flex-direction:column}
.bc-name{font-size:14.5px;font-weight:700;margin-bottom:7px}
.bc-btn{width:100%;margin-top:auto}
.bc-ops{display:flex;gap:7px;margin-top:auto}
.bc-ops .btn{flex:1;text-align:center}

/* 成就 */
.achv{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px}
.a-item{text-align:center;padding:12px 6px;background:var(--border2);border-radius:11px}
.a-ic{display:block;font-size:24px}
.a-item b{display:block;font-size:19px;margin-top:3px;color:var(--text)}
.a-item span{font-size:12px;color:var(--muted)}

/* 课本页 hero + 年级条 */
.hero-card{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:14px;
  background:linear-gradient(135deg,#eff6ff,#f5f3ff);border:1px solid #dbeafe;border-radius:14px;padding:18px;
}
.hc-l{flex:1;min-width:240px}
.hc-l h2{font-size:21px;margin-bottom:5px}
.hc-r{text-align:center}
.grade-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}

/* 学科展开面板 */
.sub-panel{margin-top:14px;background:#fff;border:1px solid var(--border);border-radius:13px;padding:14px 16px;box-shadow:var(--shadow)}
.sp-hd{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:8px}
.sp-close{margin-left:auto;font-size:13px;color:var(--primary);text-decoration:none}
.sp-tip{background:var(--border2);border-radius:9px;padding:8px 11px;font-size:13px;color:var(--text2);margin-bottom:6px}

/* 我的 · 九宫格 */
.me-top{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:18px}
.me-av{width:56px;height:56px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:30px;flex:0 0 56px}
.me-info{flex:1;min-width:200px}
.me-name{font-size:20px;font-weight:800}
.me-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}
.mi{
  display:flex;flex-direction:column;align-items:center;gap:3px;padding:16px 8px;border-radius:13px;
  background:#fff;border:1px solid var(--border);text-decoration:none;transition:.15s;
}
.mi:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#c7d7f0}
.mi-ic{font-size:28px}
.mi-t{font-size:14.5px;font-weight:700;color:var(--text)}
.mi-s{font-size:12px;color:var(--muted)}

/* 定位框 */
.loc-box{background:var(--border2);border-radius:12px;padding:14px;margin-top:12px}
.loc-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.loc-result{margin-top:12px;padding:11px 13px;background:#fff;border-radius:10px;border:1px solid var(--border)}
.lr-txt{font-size:15px}
.lr-ver{display:flex;gap:7px;flex-wrap:wrap;margin:7px 0}
.v-chip{background:var(--primary-light);color:var(--primary);border-radius:8px;padding:3px 10px;font-size:12.5px;font-weight:600}
.manual{margin-top:12px}
.manual.open{display:block}
.search-box{position:relative;max-width:330px}
.kw-list{
  display:none;position:absolute;z-index:20;top:44px;left:0;right:0;background:#fff;
  border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);max-height:230px;overflow:auto;
}
.kw-item{padding:9px 13px;font-size:14px;cursor:pointer}
.kw-item:hover{background:var(--primary-light);color:var(--primary)}
.kw-empty{padding:10px 13px;font-size:13px;color:var(--muted)}
.hot-row{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-top:10px}
.chip.hot{border:1px solid var(--border);background:#fff}

@media (max-width:860px){
  .menu-grid{grid-template-columns:repeat(2,1fr)}
  .hi-num{gap:12px}
  .book-grid{grid-template-columns:repeat(2,1fr)}
  .task-row{padding:12px 14px}
}

/* ---------- 未登录首页（卖点页） ---------- */
.land{max-width:900px;margin:0 auto;padding:8px 0 30px}
.land-hero{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:26px}
.lh-l{display:flex;align-items:center;gap:14px;flex:1;min-width:260px}
.lh-logo{
  width:54px;height:54px;border-radius:14px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;
}
.land-hero h1{font-size:25px;margin-bottom:3px}
.lh-slogan{color:var(--text2);font-size:14.5px}
.lh-r{display:flex;flex-direction:column;gap:8px}
.land-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}
.ls-item{background:#fff;border:1px solid var(--border);border-radius:13px;padding:15px 16px;position:relative}
.ls-n{
  display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;
  align-items:center;justify-content:center;font-weight:800;font-size:14px;margin-bottom:8px;
}
.ls-item b{display:block;font-size:15.5px;margin-bottom:4px}
.ls-item span{font-size:13px;color:var(--muted);line-height:1.6}
.land-sell{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin-bottom:22px}
.sell{background:#fff;border:1px solid var(--border);border-radius:13px;padding:16px;position:relative;transition:.15s}
.sell:hover{box-shadow:var(--shadow)}
.s-ic{font-size:28px}
.s-t{font-size:16px;font-weight:800;margin:6px 0 5px}
.s-d{font-size:13.2px;color:var(--text2);line-height:1.7}
.s-tag{
  position:absolute;right:12px;top:12px;font-size:11px;background:linear-gradient(135deg,#fee2e2,#fef3c7);
  color:#b45309;border-radius:20px;padding:2px 9px;font-weight:700;
}
.land-cover{background:var(--border2);border-radius:13px;padding:16px 18px;margin-bottom:20px}
.lc-t{font-weight:800;font-size:15px;margin-bottom:10px}
.lc-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.lc-i b{display:block;font-size:14px}
.lc-i span{font-size:12.5px;color:var(--muted);line-height:1.6}
.land-foot{text-align:center}

@media (max-width:860px){
  .land-steps,.land-sell,.lc-row{grid-template-columns:1fr}
}

/* 首页怎么用引导 */
.howto{
  background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 16px;margin-bottom:14px;
}
.howto summary{cursor:pointer;font-size:14.5px;font-weight:600;list-style:none}
.howto summary::-webkit-details-marker{display:none}
.ht-body{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.ht-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text2)}
.ht-n{
  flex:0 0 22px;height:22px;border-radius:50%;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:800;
}

/* =========================================================
   首页仪表盘：两栏清晰栅格（顶栏全宽 + 左主右侧）
   ========================================================= */
.dash-top{margin-bottom:18px}
.dash-grid{display:grid;grid-template-columns:1fr 348px;gap:18px;align-items:start}
.dash-main{display:flex;flex-direction:column;gap:18px;min-width:0}
.dash-side{display:flex;flex-direction:column;gap:18px;min-width:0}
.dash-side .card{margin-bottom:0}
.dash-side .achv{grid-template-columns:repeat(3,1fr)}
.dash-side .chart-svg{width:100%}

@media (max-width:980px){
  .dash-grid{grid-template-columns:1fr}
}

/* =========================================================
   管理员后台
   ========================================================= */
/* 教材正文：内嵌 PDF 原页 */
.pdf-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}
.pdf-view{
  width:100%;height:72vh;min-height:420px;border:1px solid var(--border);
  border-radius:var(--radius-sm);overflow:hidden;background:#eef1f6;
}
.pdf-view iframe{display:block;width:100%;height:100%;border:0}
.pdf-tip{margin-top:8px;padding:9px 12px;font-size:13px;color:#8a5a00;background:#fff8e6;border:1px solid #ffe1a6;border-radius:10px}
.pdf-alt{margin-top:11px;border-top:1px solid var(--border2);padding-top:9px}
.pdf-alt summary{cursor:pointer;font-size:13.5px;color:var(--muted);user-select:none}
.pdf-alt[open] summary{margin-bottom:9px;color:var(--text)}
.pdf-alt .lesson-full{margin-top:9px}

/* 后台统一导航 */
.admin-nav{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;padding:8px;
  background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);
}
.admin-nav a{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:9px;
  font-size:13.5px;color:var(--text2);border:1px solid transparent;
}
.admin-nav a .n-ic{font-size:15px}
.admin-nav a:hover{background:var(--border2);color:var(--text)}
.admin-nav a.active{background:var(--primary-light);color:var(--primary);border-color:#cfe0ff;font-weight:600}

/* 管理员设置快捷入口 */
.set-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:10px}
.set-item{
  display:flex;gap:11px;align-items:flex-start;padding:12px 13px;
  background:var(--border2);border:1px solid var(--border);border-radius:var(--radius-sm);
  transition:background .15s,border-color .15s;
}
.set-item:hover{background:var(--primary-light);border-color:#cfe0ff}
.set-item .s-ic{font-size:22px;line-height:1.2}
.set-item b{display:block;font-size:14px}
.set-item .small{color:var(--muted);line-height:1.5}

.admin-hero{
  display:flex;align-items:center;gap:14px;padding:16px 18px;margin-bottom:16px;
  background:linear-gradient(135deg,#fff7ed,#fef2f2);border:1px solid #fed7aa;border-radius:14px;
}
.admin-hero .ah-ic{font-size:30px}
.admin-hero b{font-size:17px}
.admin-hero .small{color:var(--muted)}

.data-table{width:100%;border-collapse:collapse;font-size:13.5px}
.data-table th,.data-table td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--border2)}
.data-table th{font-size:12px;color:var(--muted);font-weight:600;background:var(--border2)}
.data-table td.num{text-align:center;font-variant-numeric:tabular-nums}
.data-table tr:hover td{background:var(--border2)}
.data-table .role-tag{font-size:11px;padding:1px 7px;border-radius:6px;background:#eef2f8;color:#5b6577}
.data-table .role-tag.admin{background:#fdeaea;color:#c22b2b}

.scope-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:14px 0}
.scope{display:flex;gap:10px;align-items:flex-start;padding:11px 13px;border:2px solid var(--border);border-radius:11px;cursor:pointer;transition:.15s;background:#fff}
.scope:hover{border-color:#b9cbe8}
.scope input{margin-top:3px}
.scope.on{border-color:var(--primary);background:var(--primary-light)}
.scope .s-t{font-weight:600;font-size:14px}
.scope .s-d{font-size:12px;color:var(--muted)}

.warn-box{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:11px 13px;font-size:13px;color:#92400e;margin-bottom:14px}
.warn-box b{color:#b45309}

.twin{display:grid;grid-template-columns:1.3fr 1fr;gap:18px;align-items:start}
@media (max-width:900px){.twin{grid-template-columns:1fr}}

.sync-box{display:flex;flex-direction:column;gap:12px}
.sync-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:11px;background:#fff}
.sync-stat{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.sync-stat .chip{font-size:12px}

/* 教材列表 */
.book-tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.book-tbl th,.book-tbl td{padding:8px 10px;border-bottom:1px solid var(--border2);text-align:left;vertical-align:middle}
.book-tbl th{font-size:12px;color:var(--muted);background:var(--border2);position:sticky;top:0}
.book-tbl .grade-grp{background:var(--border2);font-weight:700;font-size:13px}
.book-tbl .ops{white-space:nowrap}

.unit-card{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;background:#fff}
.unit-hd{display:flex;align-items:center;gap:10px;padding:11px 14px;background:var(--border2);font-weight:600}
.unit-hd .cnt{font-weight:400;color:var(--muted);font-size:12.5px}
.les-list{padding:6px 14px 12px}
.les-row{display:flex;align-items:center;gap:10px;padding:7px 0;border-bottom:1px dashed var(--border2)}
.les-row:last-child{border-bottom:none}
.les-no{width:26px;height:26px;border-radius:6px;background:var(--border2);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--muted);flex:0 0 26px}
.les-title{flex:1;min-width:0}
.les-meta{font-size:12px;color:var(--muted)}
.les-ops{display:flex;gap:6px;flex:0 0 auto}

.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:14px;width:min(440px,94vw);max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-hd{padding:15px 18px;border-bottom:1px solid var(--border2);font-weight:700;font-size:16px;display:flex;justify-content:space-between;align-items:center}
.modal-bd{padding:16px 18px}
.modal-ft{padding:13px 18px;border-top:1px solid var(--border2);display:flex;justify-content:flex-end;gap:10px}

/* —— AI 知识点精讲 —— */
.tag.ai{background:linear-gradient(135deg,#eef4ff,#e7f7ff);color:#1a73e8;border:1px solid #cfe1ff;font-weight:600}
.ai-loading{display:inline-block;color:#1a73e8;font-size:12.5px}
.ai-loading:after{content:"";display:inline-block;width:10px;height:10px;margin-left:6px;border:2px solid #cfe1ff;border-top-color:#1a73e8;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-1px}
@keyframes spin{to{transform:rotate(360deg)}}
.kp-actions{margin-top:8px}
.btn.xs{padding:4px 9px;font-size:12px;border-radius:7px;background:var(--border2);color:var(--text2);border:none;cursor:pointer}
.btn.xs:hover{background:#dbe6fb;color:#1a73e8}

/* 教材正文 + 插图（正版 PDF 识别） */
.tag.pdf{background:linear-gradient(135deg,#eefaf1,#e9f7ef);color:#16803c;border:1px solid #c6ecd2;font-weight:600}
.lesson-full{font-size:14px;line-height:1.9;color:var(--text);white-space:normal}
.lesson-full p{margin:0 0 8px}
.sub-hd{font-size:14px;font-weight:700;color:var(--text2);margin:14px 0 8px;padding-left:9px;border-left:3px solid var(--primary)}

/* —— 课文插图画廊（响应式 + 灯箱） —— */
.illu-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));
  gap:12px;margin:4px 0 6px;
}
.illu{
  margin:0;background:#fff;border:1px solid var(--border2);border-radius:12px;overflow:hidden;
  cursor:zoom-in;transition:transform .15s,box-shadow .15s;outline:none;
}
.illu:hover,.illu:focus-visible{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.illu-box{width:100%;background:#f4f6fa;display:flex;align-items:center;justify-content:center;max-height:200px}
.illu-box img{display:block;width:100%;height:100%;object-fit:contain}
.illu figcaption{
  font-size:12px;color:var(--muted);text-align:center;padding:7px 6px;
  border-top:1px solid var(--border2);background:#fcfdff;
}

/* —— 文字版阅读模式 —— */
.reading{
  font-size:15.5px;line-height:2.05;color:var(--text);letter-spacing:.012em;
  max-width:760px;margin:2px auto 4px;padding:14px 16px;
  background:linear-gradient(180deg,#fcfdff,#f8faff);border:1px solid var(--border2);border-radius:12px;
  white-space:normal;word-break:break-word;
}
.reading br{line-height:2.05}
.reading--center{text-align:center}

/* —— 插图灯箱 —— */
.lightbox{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(10,15,28,.82);padding:24px;cursor:zoom-out;
  opacity:0;transition:opacity .18s;
}
.lightbox.show{display:flex;opacity:1}
.lightbox img{
  max-width:94vw;max-height:88vh;border-radius:10px;box-shadow:0 24px 70px rgba(0,0,0,.5);
  background:#fff;
}
.lightbox figcaption{
  position:absolute;bottom:18px;left:50%;transform:translateX(-50%);
  color:#e7edf7;font-size:13px;background:rgba(0,0,0,.4);padding:6px 14px;border-radius:20px;
}

/* —— 自动采集后台页 —— */
.opt-row{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.sw{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text);cursor:pointer}
.sw input{width:16px;height:16px;accent-color:#1a73e8}
.chip-wrap{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:5px;background:var(--border2);border:1px solid transparent;border-radius:20px;padding:4px 11px;font-size:12.5px;color:var(--text2);cursor:pointer;user-select:none}
.chip input{width:14px;height:14px;accent-color:#1a73e8}
.chip:has(input:checked){background:#eaf2ff;border-color:#1a73e8;color:#1a73e8}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fld{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--text2)}
.fld input,.fld select{padding:7px 9px;border:1px solid var(--border2);border-radius:8px;background:var(--bg);color:var(--text);font-size:13px}
.sep{border:none;border-top:1px solid var(--border2);margin:12px 0}
.tag.ok{background:#e9f7ef;color:#16803c;border:1px solid #c6ecd2;font-weight:600}
.tag.bad{background:#fdecea;color:#c5221f;border:1px solid #f6c7c3;font-weight:600}
.tag.warn{background:#fef7e0;color:#b06000;border:1px solid #f3e2b8;font-weight:600}
.bind-row td{padding:8px 10px}