:root{
  --bg:#f4f6fb; --card:#ffffff; --line:#e6e9f0; --text:#1f2937; --muted:#6b7280;
  --primary:#2f6fed; --primary-d:#1d4ed8; --ok:#16a34a; --bad:#dc2626; --warn:#d97706;
  --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.6}
#app{max-width:680px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;
  background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:600;font-size:16px}
.role-switch{display:flex;background:var(--bg);border-radius:999px;padding:3px}
.rs{border:0;background:transparent;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--muted);cursor:pointer}
.rs.active{background:var(--primary);color:#fff}
.nav{display:flex;gap:6px;padding:10px 12px;overflow-x:auto;background:#fff;border-bottom:1px solid var(--line)}
.nav button{flex:0 0 auto;border:0;background:var(--bg);color:var(--muted);padding:7px 14px;border-radius:999px;font-size:13px;cursor:pointer}
.nav button.active{background:var(--text);color:#fff}
.main{flex:1;padding:14px;display:flex;flex-direction:column;gap:14px}
.date{font-size:13px;color:var(--muted);padding:0 2px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
.card-head{display:flex;align-items:center;gap:8px;font-weight:600;margin-bottom:10px;font-size:15px}
.dot{width:10px;height:10px;border-radius:3px;display:inline-block}
.empty{color:var(--muted);font-size:13px;padding:6px 0}
.btn{border:0;border-radius:10px;padding:10px 16px;font-size:14px;cursor:pointer;font-weight:500}
.btn.primary{background:var(--primary);color:#fff}
.btn.primary:disabled{background:#b9c4dd;cursor:default}
.btn.block{width:100%;margin-top:12px}
.q{padding:12px 0;border-top:1px dashed var(--line)}
.q:first-child{border-top:0}
.stem{margin-bottom:8px}
.opts{display:flex;flex-direction:column;gap:8px}
.opt{display:flex;align-items:center;gap:8px;background:var(--bg);padding:9px 12px;border-radius:10px;cursor:pointer;font-size:14px}
.opt input{accent-color:var(--primary);width:16px;height:16px}
.fill{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin-top:4px}
.fill:focus{outline:none;border-color:var(--primary)}
.review{margin-top:12px;display:flex;flex-direction:column;gap:10px}
.score{font-weight:600;color:var(--primary)}
.rev{border-radius:10px;padding:10px 12px;font-size:14px}
.rev.ok{background:#ecfdf3;border:1px solid #bbf7d0}
.rev.bad{background:#fef2f2;border:1px solid #fecaca}
.rev-line{font-size:13px}
.rev-ana{font-size:12px;color:var(--muted);margin-top:4px}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.stat .v{font-size:22px;font-weight:600;color:var(--primary)}
.stat .l{font-size:12px;color:var(--muted);margin-top:2px}
.bar{margin:10px 0}
.bar-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:4px}
.bar-track{height:10px;background:var(--bg);border-radius:999px;overflow:hidden}
.bar-fill{height:100%;background:var(--primary);border-radius:999px}
.weak-item{display:flex;align-items:center;gap:8px;padding:9px 0;border-top:1px dashed var(--line);font-size:14px}
.weak-item:first-child{border-top:0}
.tag{font-size:11px;padding:2px 8px;border-radius:999px;color:#fff}
.t-bad{background:var(--bad)}.t-warn{background:var(--warn)}
.muted{color:var(--muted);font-size:12px}
.heat{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 14px}
.map-sub{font-size:13px;font-weight:600;color:var(--muted);margin-top:6px}
.cell{padding:8px 10px;border-radius:10px;font-size:12px;border:1px solid var(--line)}
.cell.ok{background:#ecfdf3;border-color:#bbf7d0;color:#166534}
.cell.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.cell.bad{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.msg-input{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.msg-input textarea{width:100%;min-height:64px;border:1px solid var(--line);border-radius:10px;padding:10px;font-family:inherit;font-size:14px;resize:vertical}
.msg{border-top:1px dashed var(--line);padding:10px 0}
.msg:first-child{border-top:0}
.msg-from{font-size:12px;color:var(--muted)}
.msg-text{font-size:14px;margin-top:2px}
.hidden{display:none!important}
/* ---- 登录 / 注册 ---- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#eef2ff,#f4f6fb)}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;width:100%;max-width:360px;box-shadow:0 12px 40px rgba(30,40,80,.08)}
.auth-brand{font-size:20px;font-weight:700;text-align:center;margin-bottom:16px}
.auth-tabs{display:flex;background:var(--bg);border-radius:999px;padding:4px;margin-bottom:16px}
.at{flex:1;border:0;background:transparent;padding:9px;border-radius:999px;font-size:14px;color:var(--muted);cursor:pointer}
.at.active{background:var(--primary);color:#fff}
.auth-form{display:flex;flex-direction:column;gap:12px}
.auth-form label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted)}
.auth-form input{padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}
.auth-form input:focus{outline:none;border-color:var(--primary)}
.auth-hint{font-size:12px;color:var(--muted);line-height:1.5}
.auth-err{color:var(--bad);font-size:13px;margin-top:10px;text-align:center}
/* ---- 顶栏右侧 ---- */
.top-right{display:flex;align-items:center;gap:10px}
.user-info{font-size:13px;color:var(--muted)}
.child-picker{display:flex;gap:4px;background:var(--bg);border-radius:999px;padding:3px}
.cp{border:0;background:transparent;padding:5px 11px;border-radius:999px;font-size:12px;color:var(--muted);cursor:pointer}
.cp.active{background:var(--primary);color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--muted);padding:6px 12px;font-size:13px}
.hint{font-size:13px;color:var(--muted);padding:0 2px}
.inline-form{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.inline-form input{padding:9px 11px;border:1px solid var(--line);border-radius:10px;font-size:14px;flex:1;min-width:100px}
.inline-form .btn{flex:0 0 auto}
/* ---- 复习 / 周测 / 周报 ---- */
.tag{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;border:1px solid var(--line);margin:0 5px 6px 0}
.t-warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.t-bad{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.quiz{margin:12px 0}
.bars{display:flex;align-items:flex-end;gap:10px;height:140px;padding:12px 4px 0;overflow-x:auto}
.day-bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:5px;min-width:34px}
.db-fill{width:100%;max-width:34px;background:linear-gradient(180deg,#2f6fed,#7aa2f7);border-radius:6px 6px 0 0;min-height:2px;transition:height .3s}
.db-d{font-size:11px;color:var(--muted)}
/* 打印周报时只保留主区域 */
@media print{
  .topbar,.nav,#auth{display:none!important}
  body{background:#fff}
  .card{box-shadow:none}
}
/* ---- 阶段四：积分徽章 / 奖励 / 家庭总览 / 离线 ---- */
.points-card{text-align:center;padding:22px}
.pc-num{font-size:48px;font-weight:800;color:var(--primary);line-height:1}
.pc-label{font-size:14px;color:var(--muted);margin-top:6px}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
.badge{flex:1 1 30%;min-width:120px;border:1px solid var(--line);border-radius:12px;padding:14px 10px;text-align:center;background:#fafbff}
.badge.got{border-color:var(--primary);background:#eff6ff}
.badge.lock{opacity:.55}
.b-icon{font-size:30px}
.b-name{font-weight:700;margin:4px 0 2px}
.b-desc{font-size:12px;color:var(--muted)}
.reward-list,.custom-list{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.reward{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.btn.sm{padding:4px 10px;font-size:12px}
.fam{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px;cursor:pointer;background:#fff}
.fam.active{border-color:var(--primary);background:#eff6ff}
.fam-top{display:flex;justify-content:space-between;align-items:center}
.fam-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;font-size:13px;color:var(--muted)}
.import-area{width:100%;min-height:120px;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:13px;font-family:ui-monospace,Menlo,Consolas,monospace;resize:vertical;box-sizing:border-box}
.row{display:flex;align-items:center;gap:10px;margin-top:8px}
.sub-head{font-weight:700;margin:14px 0 4px}
.tpl{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:10px;font-size:12px;overflow:auto;white-space:pre-wrap}
details{margin:8px 0;font-size:13px;color:var(--muted)}
.toast{position:fixed;left:50%;top:18px;transform:translateX(-50%);background:#0f172a;color:#fff;padding:10px 16px;border-radius:10px;font-size:14px;z-index:99;display:none;box-shadow:0 6px 20px rgba(0,0,0,.2)}
.toast.ok{background:#16a34a}
.toast.warn{background:#b45309}
#offlineBar{position:fixed;left:0;right:0;bottom:0;background:#b45309;color:#fff;text-align:center;padding:8px;font-size:13px;z-index:98;display:none}