:root{
  --paper:#FAF4E7; --paper2:#F4E9D4; --card:#FFFDF7; --ink:#221D17; --ink2:#5C5346;
  --muted:#8B7E6C; --line:#E4D6BC; --cinnabar:#B23A2C; --cinnabar2:#8F2C21;
  --jade:#3E6A56; --jade2:#2F5343; --gold:#D9A24E;
  --radius:18px; --shadow:0 2px 0 rgba(34,29,23,.06),0 18px 40px -28px rgba(34,29,23,.5);
  --kai:"KaiTi","STKaiti","FZKai-Z03S","LXGW WenKai",serif;
  --sans:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
  --mono:"Cascadia Code","Consolas",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{
  background:
    radial-gradient(1200px 600px at 12% -10%, #FFF9EC 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, #F6EBD6 0%, transparent 55%),
    var(--paper);
  color:var(--ink); font-family:var(--sans);
  font-size:clamp(14px,1.05vw,17px); line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{margin:0;font-family:var(--kai);font-weight:700;letter-spacing:.02em}
h2{font-size:clamp(26px,2.3vw,38px)}
h3{font-size:clamp(18px,1.35vw,24px)}
p{margin:0}
.muted{color:var(--muted)}
.small{font-size:.85em}
.hint{color:var(--muted);font-size:.85em;margin-top:10px;min-height:1.4em}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100%;display:grid;place-items:center;padding:24px}
.login-card{
  width:min(420px,92vw);background:var(--card);border:1.5px solid var(--line);
  border-radius:24px;padding:38px 34px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;
  position:relative;
}
.login-card::before{
  content:"";position:absolute;inset:8px;border:1px dashed #E8DCC4;border-radius:18px;pointer-events:none;
}
.seal{
  width:64px;height:64px;border-radius:14px;background:var(--cinnabar);color:#FFF6EC;
  display:grid;place-items:center;font-family:var(--kai);font-size:38px;line-height:1;
  box-shadow:0 6px 0 rgba(143,44,33,.25);
}
.seal.small{width:46px;height:46px;font-size:27px;border-radius:11px}
.login-card h1{font-size:30px;margin-top:6px}
label{display:flex;flex-direction:column;gap:6px;font-size:.92em;color:var(--ink2);margin-bottom:12px}
input,select,textarea{
  font:inherit;color:var(--ink);background:#FFFCF5;border:1.5px solid var(--line);
  border-radius:11px;padding:10px 12px;outline:none;transition:border-color .15s,box-shadow .15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--jade);box-shadow:0 0 0 3px rgba(62,106,86,.14)}
input[type=checkbox]{width:18px;height:18px;padding:0;accent-color:var(--jade)}
.check{flex-direction:row;align-items:center;gap:8px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:inherit;font-weight:600;color:var(--ink);background:#FFFDF7;
  border:1.5px solid var(--line);border-radius:12px;padding:9px 16px;cursor:pointer;
  transition:transform .12s,box-shadow .12s,background .12s;white-space:nowrap;
}
.btn:hover{background:#FFF8E9;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:var(--cinnabar);border-color:var(--cinnabar);color:#FFF6EC;box-shadow:0 4px 0 rgba(143,44,33,.22)}
.btn.primary:hover{background:var(--cinnabar2)}
.btn.ghost{background:transparent}
.btn.file{cursor:pointer}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.link{background:none;border:none;color:var(--jade);font:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px;padding:0}

/* ---------- 布局 ---------- */
.shell{display:grid;grid-template-columns:clamp(190px,11vw,240px) 1fr;min-height:100vh}
.rail{
  border-right:1.5px solid var(--line);background:linear-gradient(180deg,#FFFCF3,#F8EFDD);
  display:flex;flex-direction:column;gap:26px;padding:26px 18px;position:sticky;top:0;height:100vh;
}
.brand{display:flex;align-items:center;gap:12px}
.brand b{display:block;font-family:var(--kai);font-size:22px;line-height:1.1}
.brand span{font-size:.78em;color:var(--muted)}
#nav{display:flex;flex-direction:column;gap:6px}
#nav button{
  display:flex;align-items:center;gap:12px;font:inherit;font-size:1em;color:var(--ink2);
  background:none;border:none;border-radius:12px;padding:11px 12px;cursor:pointer;text-align:left;
}
#nav button i{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-style:normal;
  background:#F1E6D0;color:var(--ink2);font-family:var(--kai);font-size:15px;
}
#nav button.active{background:#FCEFE2;color:var(--cinnabar);font-weight:700}
#nav button.active i{background:var(--cinnabar);color:#FFF6EC}
#nav button:hover{background:#F7EEDD}
.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;font-size:.85em;color:var(--muted)}
.mini-stat{display:flex;align-items:baseline;gap:6px}
.mini-stat span{font-family:var(--kai);font-size:30px;color:var(--jade)}

.main{padding:clamp(22px,2.2vw,40px) clamp(22px,2.8vw,54px) 60px;min-width:0}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap}
.head-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* ---------- 卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.1vw,18px);margin-bottom:18px}
.card{
  background:var(--card);border:1.5px solid var(--line);border-radius:var(--radius);
  padding:clamp(16px,1.5vw,24px);box-shadow:var(--shadow);min-width:0;
}
.card.stat{display:flex;flex-direction:column;gap:2px}
.card.stat .k{color:var(--muted);font-size:.9em}
.card.stat b{font-family:var(--kai);font-size:clamp(34px,3vw,52px);line-height:1.1;color:var(--ink)}
.card.stat small{color:var(--muted);font-size:.78em}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.grid2{display:grid;grid-template-columns:1.15fr 1fr;gap:18px;margin-bottom:18px}
@media (max-width:1100px){.cards{grid-template-columns:repeat(2,1fr)}.grid2{grid-template-columns:1fr}.shell{grid-template-columns:1fr}.rail{position:static;height:auto;flex-direction:row;align-items:center;overflow:auto}.rail-foot{margin:0}.brand span{display:none}}

/* ---------- 总览 ---------- */
.today-list{display:flex;flex-direction:column;gap:10px}
.today-item{display:flex;align-items:center;gap:14px;padding:12px 14px;background:#FFFBF0;border:1px solid var(--line);border-radius:12px}
.today-item .ico{width:40px;height:40px;border-radius:10px;background:#F4E7CF;display:grid;place-items:center;font-family:var(--kai);font-size:19px;color:var(--cinnabar)}
.today-item .t{flex:1;min-width:0}
.today-item .t b{display:block;font-weight:600}
.today-item .t small{color:var(--muted)}
.tag{font-size:.78em;padding:3px 10px;border-radius:999px;background:#EFF4EC;color:var(--jade2);border:1px solid #DCE7D8}
.tag.warn{background:#FBEDE7;color:var(--cinnabar2);border-color:#F0D3C8}
.job-note{margin-top:12px;color:var(--muted);font-size:.82em}
.group-strip{display:flex;gap:8px;flex-wrap:wrap;max-height:190px;overflow:auto;padding-bottom:4px}
.gchip{width:52px;height:52px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1.5px solid var(--line);background:#FFFBF0;font-size:.72em;color:var(--muted)}
.gchip b{font-family:var(--kai);font-size:17px;color:var(--ink)}
.gchip.ok{background:#EDF4EA;border-color:#CFE0C8}
.gchip.on{background:#FCEFE2;border-color:#EFCDB2;color:var(--cinnabar2)}
.gchip.off{opacity:.45}
.legend{display:flex;gap:16px;margin-top:14px;font-size:.8em;color:var(--muted)}
.legend .dot{width:9px;height:9px;border-radius:3px;display:inline-block;margin-right:6px}
.dot.ok{background:#9EC28F}.dot.on{background:#E0A46B}.dot.off{background:#C9BFae}

/* ---------- 表格 ---------- */
.table-wrap{background:var(--card);border:1.5px solid var(--line);border-radius:var(--radius);overflow:auto;box-shadow:var(--shadow)}
.tbl{width:100%;border-collapse:collapse;font-size:.92em}
.tbl th{position:sticky;top:0;background:#FBF3E2;text-align:left;font-weight:600;color:var(--ink2);padding:11px 12px;border-bottom:1.5px solid var(--line);white-space:nowrap;z-index:1}
.tbl td{padding:10px 12px;border-bottom:1px solid #F0E6D2;vertical-align:top}
.tbl tr:hover td{background:#FFFBF1}
.tbl .right{text-align:right}
.tbl.chars td:first-child{font-family:var(--kai);font-size:30px;line-height:1.1;width:64px;color:var(--ink)}
.tbl .py{color:var(--jade);font-family:var(--mono);font-size:.9em}
.tbl .word{color:var(--ink2)}
.tbl .ops{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.mini-btn{font:inherit;font-size:.82em;padding:5px 9px;border-radius:8px;border:1px solid var(--line);background:#FFFDF7;cursor:pointer;color:var(--ink2);white-space:nowrap}
.mini-btn:hover{background:#F8EEDC}
.mini-btn.danger{color:var(--cinnabar2);border-color:#EBCFC4}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.78em;background:#F2ECDD;color:var(--ink2);white-space:nowrap}
.badge.learned{background:#E7F1E2;color:var(--jade2)}
.badge.new{background:#F6EFE0;color:#8A7250}
.badge.wrong{background:#FBEAE4;color:var(--cinnabar2)}

.filters{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.filters input[placeholder]{flex:1;min-width:180px}
.pager{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:14px;color:var(--muted);font-size:.85em}

/* ---------- 题库 / 绘本 ---------- */
.quiz-meta{display:flex;gap:14px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.json{
  width:100%;min-height:56vh;font-family:var(--mono);font-size:13.5px;line-height:1.55;
  background:#FFFCF5;border:1.5px solid var(--line);border-radius:14px;padding:16px;resize:vertical;
}
.story-fields{display:flex;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.story-fields label{min-width:220px}
.story-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin-bottom:12px}
.page-card{background:#FFFCF5;border:1.5px solid var(--line);border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:8px}
.page-card .ph{display:flex;align-items:center;justify-content:space-between;font-size:.8em;color:var(--muted)}
.page-card textarea{min-height:64px;font-family:var(--sans);font-size:.95em}
.page-card input{font-size:.9em}

/* ---------- 模态 ---------- */
.modal{position:fixed;inset:0;background:rgba(34,29,23,.42);display:grid;place-items:center;z-index:30;padding:20px}
.modal-card{width:min(760px,96vw);max-height:88vh;display:flex;flex-direction:column;background:var(--card);border-radius:20px;border:1.5px solid var(--line);box-shadow:0 30px 80px -30px rgba(0,0,0,.5)}
.modal-head,.modal-foot{display:flex;align-items:center;justify-content:space-between;padding:16px 20px}
.modal-head{border-bottom:1px solid var(--line)}
.modal-foot{border-top:1px solid var(--line);justify-content:flex-end;gap:10px}
.modal-body{padding:18px 20px;overflow:auto}
.modal .x{background:none;border:none;font-size:26px;line-height:1;cursor:pointer;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .full{grid-column:1/-1}
textarea.words{min-height:90px;font-family:var(--mono);font-size:.86em}

.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:#FFF8EA;padding:11px 20px;border-radius:12px;z-index:50;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);font-size:.92em}
.toast.err{background:var(--cinnabar2)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* ---------- 用户 ---------- */
.tbl.users td:first-child{font-family:var(--sans);font-size:1em;color:var(--ink);font-weight:600}
.tbl.users td{font-size:.9em}
.user-detail{margin-top:6px}
.user-detail h4{margin:4px 0 8px;font-weight:600}
.ev-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:260px;overflow:auto}
.ev-list li{display:flex;gap:10px;align-items:baseline;padding:6px 10px;background:#FFFCF5;border:1px solid var(--line);border-radius:10px;font-size:.86em}
.ev-list b{font-family:var(--kai);font-size:1.35em}
#smsCustom{margin:6px 0 12px;padding:10px 12px;background:#FFFCF5;border:1px solid var(--line);border-radius:12px}
.sms-block{margin:8px 0 10px;padding:10px 12px;background:#FFFCF5;border:1px solid var(--line);border-radius:12px}
.sms-block h4{margin:2px 0 8px;font-weight:600}