:root{
  --bg:#f2f3f5;
  --card:#ffffff;
  --line:#ececf0;
  --text:#1a1a1c;
  --sub:#8a8f99;
  --primary:#07c160;
  --primary-d:#06a552;
  --blue:#3b82f6;
  --amber:#f59e0b;
  --red:#ef4444;
  --purple:#8b5cf6;
  --cyan:#06b6d4;
  --gray:#9aa0a6;
  --radius:14px;
  --shadow:0 1px 3px rgba(0,0,0,.05);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;padding:0;height:100%;overflow:hidden;overscroll-behavior:none;}
body{
  background:#e9eaee;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
  color:var(--text);
  display:flex;justify-content:center;align-items:center;
  font-size:14px;
}
.hidden{display:none !important;}

.phone{
  position:relative;
  width:100%;max-width:430px;height:100vh;height:100dvh;max-height:100%;
  background:var(--bg);
  display:flex;flex-direction:column;
  overflow:hidden;
  box-shadow:0 10px 40px rgba(0,0,0,.14);
}
@media(min-width:520px){ .phone{height:880px;max-height:96vh;border-radius:22px;} }

/* 状态栏 */
.statusbar{
  height:30px;flex:0 0 30px;background:#fff;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;font-size:11px;color:#333;font-weight:600;
  border-bottom:1px solid var(--line);
}

/* navbar */
.navbar{
  flex:0 0 auto;background:#fff;padding:8px 14px 10px;
  border-bottom:1px solid var(--line);
}
.nav-title{font-size:18px;font-weight:700;letter-spacing:.5px;}
.nav-sub{font-size:12px;color:var(--sub);margin-top:2px;}
.nav-date{display:flex;align-items:center;gap:6px;margin-top:8px;}
.nav-date input{
  flex:1;border:1px solid var(--line);background:#f7f8fa;border-radius:8px;
  padding:6px 10px;font-size:14px;color:var(--text);font-family:inherit;
}
.date-arrow{
  width:30px;height:30px;border:none;background:#f2f3f5;border-radius:8px;
  font-size:18px;color:#555;line-height:1;cursor:pointer;
}
.date-arrow:active{background:#e4e6ea;}

/* 页面容器：必须显式成为纵向 flex，并把高度约束在 .phone 之内 */
.page{
  flex:1 1 auto;min-height:0;overflow:hidden;
  display:flex;flex-direction:column;
}
/* 滚动区：min-height:0 是关键，否则 flex 子项不会小于内容高度，导致无法滚动 */
.scroll{
  flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;touch-action:pan-y;
  padding:10px 12px calc(14px + env(safe-area-inset-bottom));
}
.pad{height:14px;}

/* 卡片 */
.progress-card,.card,.seg-card{
  background:var(--card);border-radius:var(--radius);padding:12px 14px;
  margin-bottom:10px;box-shadow:var(--shadow);
}
.progress-top{display:flex;justify-content:space-between;font-size:13px;color:var(--sub);}
.progress-top span:last-child{color:var(--text);font-weight:600;}
.bar{height:7px;background:#eef0f3;border-radius:99px;margin:8px 0 10px;overflow:hidden;}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#34d399,#07c160);border-radius:99px;transition:width .25s;}

.quick-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center;}
.quick-label{font-size:12px;color:var(--sub);}
.quick-btn{
  border:1px solid var(--line);background:#f8f9fb;color:#444;
  border-radius:99px;padding:5px 11px;font-size:12px;cursor:pointer;font-family:inherit;
}
.quick-btn:active{background:#eceff2;}

/* 分组 tabs */
.filter-bar{margin-bottom:10px;}
.group-tabs{
  display:flex;gap:6px;overflow-x:auto;padding-bottom:8px;
  scrollbar-width:none;
}
.group-tabs::-webkit-scrollbar{display:none;}
.gtab{
  flex:0 0 auto;border:none;background:#fff;border-radius:99px;
  padding:6px 14px;font-size:13px;color:#555;font-family:inherit;
  box-shadow:var(--shadow);cursor:pointer;
}
.gtab.on{background:var(--primary);color:#fff;font-weight:600;}
.gtab .n{font-size:11px;opacity:.7;margin-left:3px;}

.filter-row{display:flex;gap:8px;}
.filter-row input{
  flex:1;border:none;background:#fff;border-radius:10px;padding:8px 12px;
  font-size:13px;font-family:inherit;box-shadow:var(--shadow);color:var(--text);
}
.filter-row input::placeholder{color:#b6bcc4;}
.view-toggle{
  border:none;background:#fff;border-radius:10px;padding:0 14px;font-size:13px;
  color:var(--primary);font-weight:600;box-shadow:var(--shadow);cursor:pointer;font-family:inherit;
}

/* 学生列表 */
.stu-list{display:flex;flex-direction:column;gap:8px;}
.stu-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.stu-head{display:flex;align-items:center;gap:9px;padding:10px 12px;}
.avatar{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;
}
.stu-main{flex:1;min-width:0;}
.stu-name{font-size:15px;font-weight:600;display:flex;align-items:center;gap:5px;}
.tag{font-size:10px;padding:1px 6px;border-radius:5px;background:#fff1e6;color:#e08a2e;font-weight:500;}
.tag.grp{background:#eef2f7;color:#7b8494;}
.stu-meta{font-size:11px;color:var(--sub);margin-top:2px;}
.day-score{
  font-size:20px;font-weight:700;color:var(--primary);min-width:34px;text-align:right;
  font-variant-numeric:tabular-nums;
}
.day-score.zero{color:#c8ccd2;}
.day-score small{display:block;font-size:9px;color:var(--sub);font-weight:400;}

/* 紧凑 chips */
.chips{display:flex;gap:5px;padding:0 12px 11px;flex-wrap:wrap;}
.chip{
  display:flex;align-items:center;gap:3px;
  border:1px dashed #dcdfe5;background:#fafbfc;border-radius:8px;
  padding:5px 7px;font-size:11px;color:#9aa0a6;cursor:pointer;font-family:inherit;
}
.chip em{font-style:normal;font-weight:700;margin-left:1px;}
.chip.lv2{border:1px solid #a7e8c4;background:#eafaf1;color:#0a9650;}
.chip.lv1{border:1px solid #bcd7fb;background:#eef5ff;color:#2b6fd6;}
.chip.lv0{border:1px solid #fadfb0;background:#fff8ec;color:#c98a12;}
.chip:active{transform:scale(.95);}

/* 标准模式行 */
.dim-rows{padding:2px 12px 10px;}
.dim-row{display:flex;align-items:center;gap:8px;padding:4px 0;}
.dim-name{width:34px;font-size:12px;color:#666;flex:0 0 34px;}
.pills{display:flex;gap:5px;flex:1;}
.pill{
  flex:1;border:1px solid #e6e8ec;background:#fafbfc;border-radius:8px;
  padding:6px 0;font-size:12px;color:#8a8f99;cursor:pointer;font-family:inherit;
}
.pill.on2{background:#eafaf1;border-color:#a7e8c4;color:#0a9650;font-weight:600;}
.pill.on1{background:#eef5ff;border-color:#bcd7fb;color:#2b6fd6;font-weight:600;}
.pill.on0{background:#fff8ec;border-color:#fadfb0;color:#c98a12;font-weight:600;}
.pill:active{transform:scale(.96);}

/* fab */
.fab{
  position:absolute;right:14px;bottom:74px;z-index:20;
  border:none;background:var(--primary);color:#fff;
  padding:10px 16px;border-radius:99px;font-size:13px;font-weight:600;
  box-shadow:0 6px 16px rgba(7,193,96,.35);cursor:pointer;font-family:inherit;
}
.fab:active{background:var(--primary-d);}

/* 排名 */
.seg{display:flex;background:#f2f3f5;border-radius:10px;padding:3px;margin-bottom:8px;}
.seg button{
  flex:1;border:none;background:transparent;padding:7px 0;border-radius:8px;
  font-size:13px;color:#666;cursor:pointer;font-family:inherit;
}
.seg button.on{background:#fff;color:var(--text);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08);}
.seg.small button{font-size:12px;padding:5px 0;}
.seg.small{margin-bottom:6px;}
.seg.small:last-child{margin-bottom:0;}

.podium{display:flex;gap:8px;margin-bottom:10px;}
.pd{
  flex:1;background:#fff;border-radius:var(--radius);padding:12px 8px;text-align:center;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.pd .medal{font-size:20px;}
.pd .nm{font-size:13px;font-weight:700;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.pd .gp{font-size:10px;color:var(--sub);}
.pd .sc{font-size:19px;font-weight:800;color:var(--primary);margin-top:4px;font-variant-numeric:tabular-nums;}
.pd.r1{background:linear-gradient(180deg,#fff7e0,#fff);}
.pd.r2{background:linear-gradient(180deg,#f0f3f7,#fff);}
.pd.r3{background:linear-gradient(180deg,#fdf1e7,#fff);}

.rank-list{display:flex;flex-direction:column;gap:6px;}
.rk{
  background:#fff;border-radius:12px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:9px;padding:9px 11px;
}
.rk .no{
  width:24px;flex:0 0 24px;text-align:center;font-size:13px;font-weight:700;color:#a8adb5;
  font-variant-numeric:tabular-nums;
}
.rk.top1 .no{color:#d99b0b;} .rk.top2 .no{color:#8f98a5;} .rk.top3 .no{color:#c1803f;}
.rk .av{width:30px;height:30px;flex:0 0 30px;border-radius:9px;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;}
.rk .info{flex:1;min-width:0;}
.rk .nm{font-size:14px;font-weight:600;display:flex;align-items:center;gap:4px;}
.rk .sub{font-size:10px;color:var(--sub);margin-top:2px;}
.rk .bar2{height:4px;background:#f0f1f4;border-radius:99px;margin-top:5px;overflow:hidden;}
.rk .bar2 i{display:block;height:100%;background:linear-gradient(90deg,#34d399,#07c160);border-radius:99px;}
.rk .sc{font-size:18px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;}
.rk .sc small{display:block;font-size:9px;color:var(--sub);font-weight:400;text-align:right;}

/* 数据页 */
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:10px;}
.stat{background:#fff;border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);text-align:center;}
.stat b{display:block;font-size:22px;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat span{font-size:11px;color:var(--sub);}

.card-title{font-size:14px;font-weight:700;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;}
.hint{font-size:11px;color:var(--sub);font-weight:400;}
.btn{
  display:block;width:100%;border:1px solid var(--line);background:#fff;
  border-radius:10px;padding:10px 0;font-size:13px;color:var(--text);
  margin-bottom:8px;cursor:pointer;font-family:inherit;
}
.btn:active{background:#f5f6f8;}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}
.btn.primary:active{background:var(--primary-d);}
.btn.danger{color:var(--red);}
.btn.block{width:100%;}
.btn-row{display:flex;gap:8px;}
.btn-row .btn{margin-bottom:8px;}
.inp{
  display:block;width:100%;border:1px solid var(--line);background:#f8f9fb;
  border-radius:8px;padding:8px 10px;font-size:12.5px;font-family:inherit;
  color:var(--text);margin-bottom:8px;
}
.switch{display:flex;align-items:center;gap:6px;font-size:12.5px;color:#555;margin-bottom:9px;}
.switch input{width:16px;height:16px;accent-color:var(--primary);}
.tip{font-size:11px;color:var(--sub);line-height:1.6;margin-top:2px;}
.tip b{color:#555;}
.sqlbox{margin-top:8px;border-top:1px solid var(--line);padding-top:8px;}
.sqlbox summary{font-size:12px;color:var(--primary);cursor:pointer;}
.sqlbox p{font-size:11.5px;color:#666;line-height:1.75;margin:8px 0 0;}
.sqlbox code{
  display:block;background:#f4f5f7;border-radius:5px;padding:6px 8px;
  font-size:10.5px;color:#444;margin:3px 0;word-break:break-all;white-space:pre-wrap;line-height:1.6;
}
.warn-inline{color:#a06b12;}
.btn.tiny{padding:5px 11px;font-size:11px;margin:5px 0 4px;}

.warn{
  background:#fff6e6;border:1px solid #f7dfae;color:#a06b12;
  border-radius:9px;padding:8px 10px;font-size:11.5px;line-height:1.5;margin-bottom:9px;
}
.scope-pick{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:13px;color:#666;}
.scope-pick select,.sheet-row select,.sheet-row input{
  flex:1;border:1px solid var(--line);background:#f8f9fb;border-radius:8px;
  padding:7px 10px;font-size:13px;font-family:inherit;color:var(--text);
}

.mg-item{
  display:flex;align-items:center;gap:8px;padding:7px 0;border-bottom:1px solid #f4f5f7;
}
.mg-item:last-of-type{border-bottom:none;}
.mg-item .nm{flex:1;font-size:13px;}
.mg-item .gp{font-size:11px;color:var(--sub);}
.mg-item button{border:none;background:#f2f3f5;border-radius:6px;padding:4px 9px;font-size:11px;color:#555;cursor:pointer;font-family:inherit;}

/* tabbar */
.tabbar{
  flex:0 0 58px;height:58px;background:#fff;border-top:1px solid var(--line);
  display:flex;padding-bottom:env(safe-area-inset-bottom);
}
.tab{
  flex:1;border:none;background:none;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:2px;color:#a8adb5;cursor:pointer;font-family:inherit;
}
.tab i{font-style:normal;font-size:19px;line-height:1;}
.tab span{font-size:10px;}
.tab.on{color:var(--primary);}

/* toast */
.toast{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);
  background:rgba(0,0,0,.78);color:#fff;padding:10px 18px;border-radius:10px;
  font-size:13px;opacity:0;pointer-events:none;transition:.18s;z-index:99;max-width:80%;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1);}

/* mask sheet */
.mask{
  position:absolute;inset:0;background:rgba(0,0,0,.4);z-index:50;
  display:flex;align-items:flex-end;justify-content:center;
}
.sheet{
  width:100%;background:#fff;border-radius:18px 18px 0 0;padding:16px 16px 20px;
  animation:up .22s ease;
}
@keyframes up{from{transform:translateY(100%);}to{transform:translateY(0);}}
.sheet-title{font-size:16px;font-weight:700;text-align:center;margin-bottom:14px;}
.sheet-row{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:13px;color:#666;}
.sheet-row label{width:46px;flex:0 0 46px;}
.sheet-btns{display:flex;gap:8px;margin-top:14px;}
.sheet-btns .btn{margin-bottom:0;}

/* ===== 口令锁屏 ===== */
.lock{
  position:absolute;inset:0;z-index:200;
  background:linear-gradient(180deg,#f6fbf8 0%,#eaf4ee 100%);
  display:flex;align-items:center;justify-content:center;
  padding:0 24px;border-radius:inherit;
}
.lock-inner{width:100%;max-width:320px;text-align:center;padding-bottom:6vh;}
.lock-logo{
  width:58px;height:58px;margin:0 auto 15px;border-radius:19px;
  background:var(--primary);color:#fff;font-size:27px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(7,193,96,.26);
}
.lock-title{font-size:19px;font-weight:700;letter-spacing:.6px;}
.lock-sub{font-size:12.5px;color:var(--sub);margin-top:6px;line-height:1.6;}
.lock-field{position:relative;margin-top:18px;}
.lock-field + .lock-field{margin-top:10px;}
.lock-field input{
  width:100%;height:46px;border:1px solid #e3e7ea;background:#fff;
  border-radius:12px;padding:0 62px 0 14px;font-size:16px;font-family:inherit;
  color:var(--text);letter-spacing:1px;
}
.lock-field input::placeholder{letter-spacing:0;color:#b6bbc2;font-size:14px;}
.lock-field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(7,193,96,.13);}
.lock-eye{
  position:absolute;right:6px;top:6px;height:34px;padding:0 11px;
  border:none;background:#f1f3f5;border-radius:9px;
  font-size:12px;color:#6b7280;font-family:inherit;
}
.lock-eye:active{background:#e6e9ec;}
.lock-btn{
  width:100%;height:46px;margin-top:16px;border:none;border-radius:12px;
  background:var(--primary);color:#fff;font-size:15.5px;font-weight:600;
  font-family:inherit;letter-spacing:1px;
}
.lock-btn:active{background:var(--primary-d);}
.lock-btn:disabled{background:#c8d2cc;color:#fff;}
.lock-msg{min-height:17px;margin-top:10px;font-size:12px;color:var(--red);line-height:1.5;}
.lock-msg.ok{color:var(--primary);}
.lock-foot{margin-top:20px;font-size:10.5px;color:#a7adb5;line-height:1.75;text-align:left;}
#pwdMask .sheet-row label{width:56px;flex:0 0 56px;}