@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Manrope:wght@300;400;500;600;700;800&family=Noto+Serif+SC:wght@400;500;600;700&display=swap');

/* ============================================================
   星光班 · 方向 A「午夜星图」主题
   ============================================================ */
:root{
  --bg-0:#05080f;
  --bg-1:#0b1226;
  --bg-2:#070b16;
  --card:rgba(255,255,255,.045);
  --card-strong:rgba(146,178,255,.11);
  --brd:rgba(255,255,255,.09);
  --txt:#eef3fb;
  --muted:#8b97b0;
  --accent:#9dbeff;
  --gold:#e9c27e;
  --halo:rgba(120,158,255,.4);
  --pos:#7fe0b0;
  --neg:#ffb4a2;
  --serif:"Cormorant Garamond","Noto Serif SC",serif;
  --sans:"Manrope","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --r:20px;
  --tap:44px;              /* 最小触控目标 */
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;margin:0;padding:0}
/* hidden 属性必须真的隐藏 —— 浏览器给 [hidden] 的默认 display:none 特异性为 0，
   被任何带 display 的类选择器（.btn / .tool / .hd-action / .card-h …）轻易盖掉。
   本工程有 7 处 hidden 由 JS 控制显隐，漏一次就会把「删除活动」「返回家长端」
   这类按钮误显给没有权限的人。这条 !important 是唯一的兜底。 */
[hidden]{display:none !important}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);color:var(--txt);
  background:
    radial-gradient(900px 600px at 50% -10%, #131f3d 0%, transparent 60%),
    radial-gradient(700px 500px at 90% 10%, #171430 0%, transparent 55%),
    var(--bg-0);
  min-height:100vh;-webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior-y:none;
}
button,input,select{font-family:inherit;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
/* 星尘 */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:
    radial-gradient(1px 1px at 24px 36px, rgba(255,255,255,.9), transparent),
    radial-gradient(1px 1px at 148px 92px, rgba(255,255,255,.5), transparent),
    radial-gradient(1.4px 1.4px at 76px 168px, rgba(255,255,255,.75), transparent),
    radial-gradient(1px 1px at 196px 48px, rgba(255,255,255,.45), transparent),
    radial-gradient(1.6px 1.6px at 38px 118px, rgba(200,220,255,.7), transparent);
  background-size:240px 240px;animation:tw 7s ease-in-out infinite alternate;
}
@keyframes tw{from{opacity:.3}to{opacity:.62}}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes shake{10%,90%{transform:translateX(-2px)}30%,70%{transform:translateX(3px)}50%{transform:translateX(-3px)}}
@keyframes shimmer{0%{background-position:-260px 0}100%{background-position:260px 0}}
@keyframes bootslide{0%{width:0;opacity:1}80%{width:92%;opacity:1}100%{width:100%;opacity:0}}

/* ============ 首屏加载条 ============ */
.boot-bar{position:fixed;top:0;left:0;height:2px;z-index:99;width:0;
  background:linear-gradient(90deg,var(--accent),var(--gold));
  box-shadow:0 0 12px var(--halo);animation:bootslide 1.1s ease-out forwards;pointer-events:none}

/* ============ 登录页 ============ */
.login{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;padding:calc(32px + var(--sat)) 22px 32px;max-width:480px;margin:0 auto}
.brand{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:30px;animation:rise .7s ease both}
.brand .star{width:78px;height:78px;filter:drop-shadow(0 0 22px var(--halo))}
.brand h1{font-family:var(--serif);font-size:40px;font-weight:500;letter-spacing:.16em;
  text-shadow:0 0 26px var(--halo)}
.brand .sub{font-size:10px;letter-spacing:.4em;text-transform:uppercase;color:var(--muted)}

.form-card{width:100%;background:var(--card);border:1px solid var(--brd);border-radius:24px;
  padding:26px 22px;backdrop-filter:blur(16px);animation:rise .7s .1s ease both}
.form-card[hidden]{display:none}
.tabs{display:flex;gap:6px;background:rgba(0,0,0,.25);border-radius:14px;padding:4px;margin-bottom:20px}
.tabs button{flex:1;min-height:38px;border:0;background:transparent;color:var(--muted);font-family:var(--sans);
  font-size:13px;font-weight:600;padding:10px;border-radius:11px;cursor:pointer;transition:.2s}
.tabs button.on{background:var(--card-strong);color:var(--txt);box-shadow:0 0 0 1px var(--brd)}

.field{margin-bottom:14px}
.field label{display:block;font-size:11px;color:var(--muted);letter-spacing:.06em;margin-bottom:7px}
.field input{width:100%;min-height:var(--tap);background:rgba(255,255,255,.05);border:1px solid var(--brd);border-radius:13px;
  padding:14px 15px;font-size:16px;color:var(--txt);font-family:var(--sans);outline:none;transition:.2s}
.field input::placeholder{color:var(--muted);opacity:.6}
.field input:focus{border-color:var(--accent);background:rgba(157,190,255,.08);
  box-shadow:0 0 0 3px rgba(157,190,255,.12)}
.hint-line{font-size:10.5px;color:var(--muted);line-height:1.6;margin-top:2px;padding-left:2px}

.btn{width:100%;min-height:var(--tap);display:flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;
  border-radius:14px;padding:15px;font-size:15px;font-weight:700;letter-spacing:.06em;
  font-family:var(--sans);transition:.2s}
.btn-gold{background:linear-gradient(120deg,var(--gold),#f6d79a);color:#20160a;
  box-shadow:0 14px 30px -12px var(--gold), inset 0 1px 0 rgba(255,255,255,.5)}
.btn-gold:active{transform:translateY(1px)}
.btn-gold:disabled{opacity:.55;cursor:not-allowed}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--txt);border:1px solid var(--brd)}
.btn-ghost:active{background:rgba(255,255,255,.1)}
.btn-danger{background:rgba(255,180,162,.1);color:var(--neg);border:1px solid rgba(255,180,162,.28)}
.btn-danger:active{background:rgba(255,180,162,.18)}
.msg{font-size:12px;color:var(--neg);text-align:center;margin-top:12px;min-height:16px;line-height:1.5}
.foot{font-size:10.5px;color:var(--muted);letter-spacing:.06em;margin-top:26px;text-align:center;
  position:relative;z-index:1;padding-bottom:var(--sab)}
.link-admin{color:var(--accent);cursor:pointer;text-decoration:underline;text-underline-offset:3px;
  display:inline-block;padding:8px 4px;margin:-8px -4px}

/* ============ PIN 输入 ============ */
.pin-card{text-align:center}
.pin-back{background:none;border:0;color:var(--muted);font-size:12px;cursor:pointer;
  position:absolute;left:20px;top:22px;padding:8px 6px;margin:-8px -6px;min-height:32px}
.pin-card{position:relative}
.pin-who{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.pin-title{font-family:var(--serif);font-size:28px;font-weight:600;margin-bottom:6px}
.pin-sub{font-size:11px;color:var(--muted);margin-bottom:24px;min-height:15px}

.pin-dots{display:flex;justify-content:center;gap:18px;margin-bottom:28px}
.pin-dots i{width:15px;height:15px;border-radius:50%;border:1.5px solid rgba(255,255,255,.28);
  transition:.18s;position:relative}
.pin-dots i.on{background:var(--gold);border-color:var(--gold);box-shadow:0 0 14px var(--gold);transform:scale(1.06)}
.pin-dots.err{animation:shake .4s}
.pin-dots.err i{border-color:var(--neg);background:rgba(255,180,162,.25)}

.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.keypad button{height:56px;border-radius:16px;background:rgba(255,255,255,.055);border:1px solid var(--brd);
  color:var(--txt);font-size:22px;font-weight:500;font-family:var(--serif);cursor:pointer;transition:.12s;
  font-variant-numeric:tabular-nums}
.keypad button:active{background:rgba(157,190,255,.2);transform:scale(.96)}
.keypad button.kp-blank{background:none;border:0;cursor:default}
@media (hover:hover){.keypad button:hover{background:rgba(255,255,255,.1)}}

/* ============ App 外壳 ============ */
.app{position:relative;z-index:1;max-width:480px;margin:0 auto;min-height:100vh;
  display:flex;flex-direction:column;background:linear-gradient(178deg,var(--bg-1) 0%,var(--bg-2) 46%,var(--bg-0) 100%)}
.app::after{content:"";position:absolute;left:50%;top:-190px;transform:translateX(-50%);
  width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,var(--halo),transparent 68%);
  pointer-events:none;z-index:0;opacity:.9}
.app-header{position:relative;z-index:2;padding:calc(20px + var(--sat)) 22px 12px;display:flex;
  align-items:center;justify-content:space-between;gap:12px}
.app-header .title{font-size:16px;font-weight:700;letter-spacing:.04em}
.app-header .title small{display:block;font-size:10.5px;color:var(--muted);font-weight:400;letter-spacing:.1em;margin-top:3px}
.hd-action{font-size:12px;color:var(--accent);cursor:pointer;flex:none;white-space:nowrap;
  padding:12px 10px;margin:-12px -10px;min-height:var(--tap);display:flex;align-items:center}
.hd-right{display:flex;align-items:center;flex:none}
/* 两个 action 并排时，各带 10px padding 会撑出 20px 间隙；
   只收回前面那个的右边距，最后一个保留 .hd-action 原有的 -10px，贴边效果不变 */
.hd-right .hd-action:not(:last-child){margin-right:-8px}
.app-body{position:relative;z-index:2;flex:1;padding:6px 18px calc(96px + var(--sab));overflow-y:auto}
.app-body::-webkit-scrollbar{width:0}

.greet{display:flex;justify-content:space-between;align-items:flex-start;padding:8px 4px 18px}
.greet .hi{font-size:19px;font-weight:600}
.greet .hi span{color:var(--accent)}
.greet .date{font-size:11px;color:var(--muted);text-align:right;line-height:1.6}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:18px;
  backdrop-filter:blur(14px);margin-bottom:14px;animation:rise .5s ease both}
.card-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:10px}
.card-h .t{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}
.card-h .more{font-size:11.5px;color:var(--accent);cursor:pointer;padding:8px 0;margin:-8px 0;white-space:nowrap}
.card.hide{display:none}

/* 余额 hero */
.hero{position:relative;overflow:hidden;border-radius:24px;padding:24px 20px;margin-bottom:14px;
  background:linear-gradient(140deg,var(--card-strong),var(--card));border:1px solid var(--brd);
  animation:rise .5s ease both}
.hero .lbl{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.hero .amount{font-family:var(--serif);font-size:50px;font-weight:600;line-height:1;display:flex;align-items:baseline;gap:3px;
  font-variant-numeric:tabular-nums}
.hero .amount .cur{font-size:23px;color:var(--gold);font-weight:500}
.hero .amount .dec{font-size:26px;color:var(--muted)}
.hero .stats{display:flex;gap:22px;margin-top:18px;padding-top:16px;border-top:1px solid var(--brd);flex-wrap:wrap}
.hero .stats .st{display:flex;flex-direction:column;gap:4px}
.hero .stats .st .k{font-size:10px;color:var(--muted)}
.hero .stats .st .v{font-size:14.5px;font-weight:700;font-variant-numeric:tabular-nums}
.up{color:var(--pos)}.dn{color:var(--neg)}
.hero .const{position:absolute;right:-10px;top:-6px;width:140px;height:140px;opacity:.8;pointer-events:none}

/* 脱敏全班汇总 */
.agg{display:flex;gap:10px}
.agg .a{flex:1;background:rgba(255,255,255,.04);border:1px solid var(--brd);border-radius:14px;padding:12px 8px;text-align:center}
.agg .a .k{font-size:9.5px;color:var(--muted);letter-spacing:.04em;margin-bottom:5px}
.agg .a .v{font-family:var(--serif);font-size:19px;font-weight:600;font-variant-numeric:tabular-nums}
.agg-note{font-size:10px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.6}
.dim{opacity:.72}

/* 结余构成表 */
.brk{display:flex;flex-direction:column}
.brk .r{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--brd)}
.brk .r .k{font-size:12.5px;color:var(--txt);display:flex;flex-direction:column;gap:2px}
.brk .r .k em{font-style:normal;font-size:10px;color:var(--muted)}
.brk .r .v{font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.brk .r.total{border-bottom:0;padding-top:14px;margin-top:4px;border-top:1px solid var(--brd)}
.brk .r.total .k{font-size:12.5px;color:var(--muted);letter-spacing:.06em}
.brk .r.total .v{font-family:var(--serif);font-size:24px;font-weight:600;color:var(--gold)}

/* 活动/流水行 */
.li{display:flex;gap:13px;align-items:center;padding:11px 0;border-bottom:1px solid var(--brd)}
.li:last-child{border-bottom:0;padding-bottom:0}
.li:first-child{padding-top:0}
.dchip{width:46px;flex:none;text-align:center;border-radius:12px;padding:7px 0;
  background:rgba(255,255,255,.05);border:1px solid var(--brd)}
.dchip .m{font-size:9px;color:var(--accent);letter-spacing:.1em;font-weight:700}
.dchip .d{font-family:var(--serif);font-size:21px;font-weight:600;line-height:1;margin-top:2px}
.ico{width:36px;height:36px;flex:none;border-radius:11px;display:grid;place-items:center;font-size:15px;
  background:rgba(255,255,255,.05);border:1px solid var(--brd)}
.ico.warn{background:rgba(233,194,126,.12);border-color:rgba(233,194,126,.28)}
.mid{flex:1;min-width:0}
.mid .n{font-size:13.5px;font-weight:600;margin-bottom:3px;display:flex;align-items:center;gap:6px;
  overflow:hidden;text-overflow:ellipsis}
.mid .n > :first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mid .s{font-size:10.5px;color:var(--muted);line-height:1.5}
.amt{font-size:13.5px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.tag{font-size:9.5px;padding:4px 9px;border-radius:20px;letter-spacing:.05em;font-weight:600;white-space:nowrap;flex:none}
.tag-live{background:rgba(126,224,176,.14);color:var(--pos);border:1px solid rgba(126,224,176,.28)}
.tag-soon{background:rgba(139,151,176,.12);color:var(--muted);border:1px solid var(--brd)}
.tag-done{background:rgba(139,151,176,.12);color:var(--muted);border:1px solid var(--brd)}
.tag-open{background:rgba(233,194,126,.14);color:var(--gold);border:1px solid rgba(233,194,126,.28)}
.tag-share{background:rgba(157,190,255,.12);color:var(--accent);border:1px solid rgba(157,190,255,.26)}
.del{width:30px;height:30px;flex:none;border-radius:9px;background:rgba(255,180,162,.1);
  border:1px solid rgba(255,180,162,.24);color:var(--neg);font-size:15px;line-height:1;cursor:pointer}
.del:active{background:rgba(255,180,162,.2)}

/* 分段控件 */
.seg{display:flex;gap:5px;background:rgba(0,0,0,.25);border-radius:14px;padding:4px;margin-bottom:14px}
.seg button{flex:1;min-height:38px;border:0;background:transparent;color:var(--muted);font-family:var(--sans);
  font-size:12px;font-weight:600;padding:8px 4px;border-radius:11px;cursor:pointer;transition:.2s;white-space:nowrap}
.seg button.on{background:var(--card-strong);color:var(--txt);box-shadow:0 0 0 1px var(--brd)}

/* 活动卡片 */
.act{padding:16px}
.act.joined{border-color:rgba(126,224,176,.24);background:linear-gradient(140deg,rgba(126,224,176,.06),var(--card))}
.act-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:8px}
.act-t{font-size:15px;font-weight:700;line-height:1.35}
.act-meta{font-size:11px;color:var(--accent);margin-bottom:8px}
.act-note{font-size:11.5px;color:var(--muted);line-height:1.6;margin-bottom:10px}
.act-dl{font-size:10.5px;color:var(--gold);margin-top:8px}
.pills{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.pill{font-size:10px;padding:4px 9px;border-radius:20px;background:rgba(255,255,255,.055);
  border:1px solid var(--brd);color:var(--muted);white-space:nowrap}
.pill.gold{background:rgba(233,194,126,.12);border-color:rgba(233,194,126,.26);color:var(--gold)}
.act-foot{display:flex;gap:9px;margin-top:14px}
.btnx{flex:1;min-height:40px;border-radius:12px;border:1px solid var(--brd);font-size:12.5px;font-weight:700;
  cursor:pointer;font-family:var(--sans);transition:.15s;background:rgba(255,255,255,.06);color:var(--txt)}
.btnx.gold{background:linear-gradient(120deg,var(--gold),#f6d79a);color:#20160a;border:0}
.btnx.ghost:active{background:rgba(255,255,255,.12)}
.btnx.gold:active{transform:translateY(1px)}
.btnx:disabled{opacity:.5;cursor:not-allowed}

/* 日历 */
.cal-head{display:flex;justify-content:space-between;align-items:center;margin:4px 2px 12px}
.cal-head .mo{font-family:var(--serif);font-size:25px;font-weight:600}
.cal-head .mo em{font-style:normal;font-size:13px;color:var(--muted);margin-left:6px}
.cal-nav{display:flex;gap:8px}
.cal-nav button{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--brd);color:var(--muted);font-size:14px;cursor:pointer}
.cal{display:grid;grid-template-columns:repeat(7,1fr)}
.cal .wd{text-align:center;font-size:9.5px;color:var(--muted);padding-bottom:8px}
.cal .day{position:relative;height:42px;display:grid;place-items:center;font-size:12.5px;border-radius:11px;cursor:default}
.cal .day.off{color:var(--muted);opacity:.3}
.cal .day.ev::after,.cal .day.joined::after{content:"";position:absolute;bottom:6px;width:4px;height:4px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 7px var(--gold)}
.cal .day.joined::after{background:var(--pos);box-shadow:0 0 7px var(--pos)}
.cal .day.joined{color:var(--pos);font-weight:700}
.cal .day.today{background:linear-gradient(150deg,var(--accent),transparent);color:#0a0d16;font-weight:800}
.cal .day.today::after{background:#0a0d16;box-shadow:none}

/* 进度环 */
.ring{width:96px;height:96px;flex:none;position:relative}
.ring .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .num b{font-family:var(--serif);font-size:27px;font-weight:600;line-height:1}
.ring .num span{font-size:9px;color:var(--muted)}
.prog{display:flex;align-items:center;gap:18px}
.pinfo{flex:1;min-width:0}
.pinfo .row{display:flex;justify-content:space-between;gap:10px;font-size:12px;padding:6px 0;border-bottom:1px dashed var(--brd)}
.pinfo .row:last-child{border-bottom:0}
.pinfo .row .k{color:var(--muted);white-space:nowrap}
.pinfo .row .v{font-weight:700;font-variant-numeric:tabular-nums}

/* 底部导航 */
.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;z-index:20;
  display:flex;justify-content:space-around;padding:8px 8px calc(10px + var(--sab));
  border-top:1px solid var(--brd);background:linear-gradient(180deg, rgba(7,11,22,.72), rgba(5,8,15,.97));
  backdrop-filter:blur(16px)}
.bottom-nav .tab{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:9.5px;
  color:var(--muted);letter-spacing:.04em;cursor:pointer;background:none;border:0;font-family:var(--sans);
  padding:8px 10px;min-width:56px;min-height:var(--tap);border-radius:12px;transition:.2s}
.bottom-nav .tab.on{color:var(--accent);background:rgba(157,190,255,.07)}
.bottom-nav .tab:active{background:rgba(157,190,255,.13)}
.bottom-nav .tab svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}

/* 页签切换 */
.page{display:none}
.page.on{display:block;animation:rise .35s ease both}

/* 表格（后台） */
.tbl{width:100%;border-collapse:collapse;font-size:12px}
.tbl th{text-align:left;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  padding:8px 6px;border-bottom:1px solid var(--brd);font-weight:600}
.tbl td{padding:11px 6px;border-bottom:1px solid var(--brd);vertical-align:middle}
.tbl td.num, .tbl th.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl tr:last-child td{border-bottom:0}
.tbl tr.rowclick{cursor:pointer;transition:.15s}
.tbl tr.rowclick:active{background:rgba(157,190,255,.09)}
.tbl tr.off{opacity:.45}
.tbl td .tag{margin-left:5px;vertical-align:middle}
.chev{color:var(--muted);text-align:right;font-size:15px;width:16px}

/* 快捷操作 */
.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.quick button{background:rgba(255,255,255,.05);border:1px solid var(--brd);border-radius:15px;padding:13px 6px;
  min-height:78px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  font-size:10.5px;color:#cfd7e6;font-family:var(--sans);cursor:pointer;transition:.15s}
.quick button:active{background:rgba(157,190,255,.12);transform:scale(.98)}
.quick button i{width:31px;height:31px;border-radius:9px;display:grid;place-items:center;font-style:normal;
  font-size:15px;background:linear-gradient(140deg,var(--accent),transparent);color:#0a0d16}

/* 管理工具 */
.tool-grid{display:flex;flex-direction:column;gap:8px}
.tool{display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-height:var(--tap);
  background:rgba(255,255,255,.04);border:1px solid var(--brd);border-radius:14px;padding:12px 14px;
  color:var(--txt);cursor:pointer;font-family:var(--sans);transition:.15s}
.tool:active{background:rgba(157,190,255,.1)}
.tool b{width:30px;height:30px;flex:none;border-radius:9px;display:grid;place-items:center;font-size:14px;
  background:rgba(157,190,255,.13);border:1px solid rgba(157,190,255,.2);font-weight:400}
.tool span{font-size:13px;font-weight:600;display:block}
.tool em{font-style:normal;font-size:10px;color:var(--muted);display:block;margin-top:2px}

/* 弹层 */
.sheet-mask{position:fixed;inset:0;background:rgba(3,5,10,.68);backdrop-filter:blur(4px);z-index:50;
  display:none;align-items:flex-end;justify-content:center}
.sheet-mask.on{display:flex}
.sheet{width:100%;max-width:480px;max-height:90vh;overflow-y:auto;
  background:linear-gradient(180deg,#0e1424,#080c16);
  border-top-left-radius:26px;border-top-right-radius:26px;border:1px solid var(--brd);border-bottom:0;
  padding:24px 22px calc(28px + var(--sab));animation:rise .3s ease both}
.sheet h3{font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:.03em}
.sheet .field label{color:var(--muted)}
.sheet select{width:100%;min-height:var(--tap);background:rgba(255,255,255,.05);border:1px solid var(--brd);border-radius:13px;
  padding:14px 15px;font-size:15px;color:var(--txt);font-family:var(--sans);outline:none}
.sheet select option{background:#0e1424;color:var(--txt)}
.sheet .row2{display:flex;gap:10px}
.sheet .row2 > *{flex:1;min-width:0}
.sub-h{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;
  margin:20px 0 10px;padding-top:16px;border-top:1px solid var(--brd)}
.pin-state{font-size:12px;color:var(--muted);margin-bottom:12px;line-height:1.6}
.sg-meta{font-size:11.5px;color:var(--accent);line-height:1.6;margin-bottom:16px}
.sg-due{font-size:11.5px;color:var(--muted);line-height:1.7;margin:4px 0 18px}
.sg-due b{color:var(--gold);font-size:15px;font-weight:700}
.sg-sum{font-size:12px;color:var(--gold);margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--brd)}
.sheet .btn + .btn{margin-top:8px}

/* 人数步进器 */
.stepper{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.05);
  border:1px solid var(--brd);border-radius:13px;padding:6px 8px}
.stepper button{width:40px;height:40px;border-radius:11px;border:1px solid var(--brd);
  background:rgba(255,255,255,.06);color:var(--txt);font-size:19px;line-height:1;cursor:pointer}
.stepper button:active{background:rgba(157,190,255,.2)}
.stepper span{flex:1;text-align:center;font-family:var(--serif);font-size:24px;font-weight:600;
  font-variant-numeric:tabular-nums}
.stepper em{font-style:normal;font-size:11px;color:var(--muted)}

/* 提示 */
.toast{position:fixed;left:50%;bottom:calc(96px + var(--sab));transform:translateX(-50%) translateY(8px);z-index:60;
  background:rgba(20,28,46,.96);border:1px solid var(--brd);color:var(--txt);font-size:13px;
  padding:12px 20px;border-radius:14px;opacity:0;transition:.25s;pointer-events:none;max-width:320px;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.empty{text-align:center;color:var(--muted);font-size:12.5px;padding:26px 0;line-height:1.7}
.demo-flag{display:none;font-size:10px;color:var(--gold);text-align:center;padding:6px 0 0;letter-spacing:.08em}
.demo-flag.on{display:block}

/* 今日作业（家长端首页三栏） */
.hw-grp{margin-top:16px}
.hw-gh{display:flex;align-items:center;gap:8px;font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:8px}
.hw-gh i{width:5px;height:5px;border-radius:50%;background:var(--muted);flex:none}
.hw-gh b{margin-left:auto;font-size:10px;font-weight:600;color:var(--muted);
  background:rgba(255,255,255,.06);border:1px solid var(--brd);border-radius:20px;padding:2px 8px}
.hw-item{display:flex;align-items:flex-start;gap:8px;padding:9px 0;font-size:13px;line-height:1.55;
  border-bottom:1px solid var(--brd)}
.hw-item:last-child{border-bottom:0;padding-bottom:0}
.hw-sub{flex:none;font-size:10px;padding:3px 8px;border-radius:8px;margin-top:1px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid var(--brd);color:var(--muted)}
.hw-txt{flex:1;min-width:0;word-break:break-word}
.hw-due{flex:none;font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:2px}
/* 紧急度递减：明天要带 > 要上交 > 在家做 */
.hw-tomorrow .hw-gh{color:var(--gold)}
.hw-tomorrow .hw-gh i{background:var(--gold);box-shadow:0 0 7px var(--gold)}
.hw-tomorrow .hw-item{background:rgba(233,194,126,.055);border-radius:10px;padding:9px 10px;
  border-bottom:0;margin-bottom:6px}
.hw-tomorrow .hw-item:last-child{margin-bottom:0}
.hw-tomorrow .hw-due{color:var(--gold);font-weight:700}
.hw-submit .hw-gh{color:var(--accent)}
.hw-submit .hw-gh i{background:var(--accent)}
.li.off{opacity:.45}

/* 多行输入（作业粘贴用） */
.field textarea{width:100%;box-sizing:border-box;min-height:112px;resize:vertical;outline:none;
  background:rgba(255,255,255,.05);border:1px solid var(--brd);border-radius:13px;padding:13px 15px;
  font-size:14px;line-height:1.65;color:var(--txt);font-family:var(--sans)}
.field textarea::placeholder{color:var(--muted);opacity:.6}
.field textarea:focus{border-color:var(--accent);background:rgba(157,190,255,.08);
  box-shadow:0 0 0 3px rgba(157,190,255,.12)}

/* 无障碍：尊重系统「减弱动态效果」 */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important}
  .boot-bar{display:none}
}

/* 极窄屏（如 iPhone SE / 小屏安卓） */
@media (max-width:360px){
  .hero .amount{font-size:42px}
  .hero .stats{gap:14px}
  .app-body{padding-left:14px;padding-right:14px}
  .quick button{font-size:9.5px}
  .brk .r .k{font-size:11.5px}
}