/* =========================================================
   智学 · 个性化因材施教学习智能体
   设计系统：低饱和度教育风 / 护眼配色 / PC + 移动双端
   ========================================================= */
:root{
  --bg:#f3f7f5;
  --bg-2:#e9f0ed;
  --card:#ffffff;
  --ink:#20302e;
  --ink-2:#495c59;
  --ink-3:#7b8f8b;
  --ink-4:#a4b5b1;
  --line:#e3ebe8;
  --line-2:#eef4f1;
  --primary:#4e8d8a;
  --primary-deep:#3d7572;
  --primary-soft:#e7f1ef;
  --primary-soft-2:#f1f8f6;
  --accent:#c99551;
  --accent-soft:#faf2e4;
  --danger:#c1695f;
  --danger-soft:#fbeeec;
  --warn:#c39a44;
  --warn-soft:#fbf4e5;
  --ok:#5a9670;
  --ok-soft:#eaf5ee;
  --info:#5a86a8;
  --info-soft:#ecf2f7;
  --violet:#7f74a8;
  --violet-soft:#f0eef7;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(32,48,46,.05), 0 2px 8px rgba(32,48,46,.04);
  --shadow:0 4px 14px rgba(32,48,46,.07), 0 1px 3px rgba(32,48,46,.04);
  --shadow-lg:0 18px 48px rgba(32,48,46,.16), 0 4px 12px rgba(32,48,46,.08);
  --topbar-h:60px;
  --side-w:236px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;overflow-x:clip;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--primary-deep);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:600;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink)}
::selection{background:#cfe6e2}
/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#cfdcd8;border-radius:8px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:#b7c9c4;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 启动画面 ---------- */
.boot{
  position:fixed;inset:0;z-index:9000;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;background:var(--bg);
  transition:opacity .35s ease;
}
.boot.out{opacity:0;pointer-events:none}
.boot-logo{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;
  color:#fff;background:linear-gradient(150deg,#5fa09c,#417f7c);
  box-shadow:0 12px 28px rgba(78,141,138,.32);animation:bootFloat 2.4s ease-in-out infinite;
}
@keyframes bootFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.boot-name{font-size:22px;font-weight:700;letter-spacing:.22em;margin-top:6px}
.boot-sub{color:var(--ink-3);font-size:13px}

/* ---------- 通用：按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:36px;padding:0 14px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);font-size:13.5px;font-weight:500;cursor:pointer;
  transition:.16s ease;white-space:nowrap;position:relative;
}
.btn:hover{border-color:#c9dbd6;background:#fbfdfc;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid #a8cfc9;outline-offset:2px}
.btn[disabled]{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}
.btn-primary{
  background:linear-gradient(180deg,#579693,#478280);border-color:#3f7a77;color:#fff;
  box-shadow:0 2px 6px rgba(78,141,138,.25);
}
.btn-primary:hover{background:linear-gradient(180deg,#5b9d99,#43807d);color:#fff;border-color:#3a7471}
.btn-soft{background:var(--primary-soft);border-color:#d3e6e2;color:var(--primary-deep)}
.btn-soft:hover{background:#dcebe8;color:var(--primary-deep)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--ink-3)}
.btn-ghost:hover{background:var(--bg-2);color:var(--ink)}
.btn-danger{color:var(--danger);border-color:#f0d6d2;background:#fff}
.btn-danger:hover{background:var(--danger-soft);color:var(--danger);border-color:#e8c3bd}
.btn-sm{height:30px;padding:0 10px;font-size:12.5px;border-radius:8px}
.btn-lg{height:44px;padding:0 22px;font-size:15px;border-radius:12px}
.btn-block{width:100%}
.icon-btn{
  width:34px;height:34px;border-radius:10px;border:1px solid transparent;background:transparent;
  display:inline-grid;place-items:center;color:var(--ink-3);cursor:pointer;transition:.16s;position:relative;
}
.icon-btn:hover{background:var(--bg-2);color:var(--ink)}
.icon-btn.solid{background:#fff;border-color:var(--line);box-shadow:var(--shadow-sm)}
.icon-btn.solid:hover{border-color:#c9dbd6}
.icon-btn svg{width:18px;height:18px}

/* ---------- 悬停提示 ---------- */
/* 使用 display 切换，避免隐藏状态影响 scrollWidth（移动端会因此缩放视口） */
[data-tip]{position:relative}
[data-tip]::after{
  content:attr(data-tip);position:absolute;z-index:1200;left:50%;bottom:calc(100% + 8px);
  transform:translate(-50%,0);display:none;background:#2b3d3a;color:#fff;font-size:12px;line-height:1.4;
  padding:5px 9px;border-radius:7px;max-width:240px;width:max-content;
  pointer-events:none;box-shadow:0 6px 18px rgba(0,0,0,.18);font-weight:400;text-align:center;
  animation:tipIn .14s ease both;
}
[data-tip]::before{
  content:"";position:absolute;z-index:1201;left:50%;bottom:calc(100% + 3px);width:7px;height:7px;
  background:#2b3d3a;transform:translate(-50%,0) rotate(45deg);display:none;animation:tipIn .14s ease both;
}
@keyframes tipIn{from{opacity:0}to{opacity:1}}
[data-tip]:hover::after,[data-tip]:focus-visible::after{display:block}
[data-tip]:hover::before,[data-tip]:focus-visible::before{display:block}
[data-tip-pos="bottom"]::after{bottom:auto;top:calc(100% + 8px)}
[data-tip-pos="bottom"]::before{bottom:auto;top:calc(100% + 3px)}
[data-tip-pos="right"]::after{left:calc(100% + 10px);bottom:50%;transform:translate(0,50%);text-align:left}
[data-tip-pos="right"]::before{left:calc(100% + 4px);bottom:50%;transform:translate(0,50%) rotate(45deg)}
[data-tip-pos="left"]::after{left:auto;right:calc(100% + 10px);bottom:50%;transform:translate(0,50%);text-align:right}
[data-tip-pos="left"]::before{left:auto;right:calc(100% + 4px);bottom:50%;transform:translate(0,50%) rotate(45deg)}

/* ---------- 布局骨架 ---------- */
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{
  height:var(--topbar-h);flex:0 0 auto;display:flex;align-items:center;gap:12px;
  padding:0 18px 0 14px;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:600;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(150deg,#5fa09c,#3f7c79);box-shadow:0 4px 10px rgba(78,141,138,.3);flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:10.5px;color:var(--ink-4);letter-spacing:.06em;white-space:nowrap}
.topbar-spacer{flex:1}
/* 顶栏上下文切换器：孩子 / 学科 */
.topbar-ctx{display:flex;align-items:center;gap:8px;margin-right:10px}
.ctx-pick{
  display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 8px 0 10px;border-radius:9px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:12.5px;cursor:pointer;transition:.15s;
}
.ctx-pick:hover{border-color:#c9dbd6;background:#fbfdfc}
.ctx-pick svg{color:var(--primary);flex:0 0 auto}
.ctx-pick select{
  appearance:none;border:none;background:transparent;outline:none;cursor:pointer;
  font-size:12.5px;color:var(--ink);font-weight:600;padding-right:14px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237b8f8b' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right center;background-size:12px;
}
.ctx-pick.ctx-subject{border-color:#bfdcd6;background:var(--primary-soft)}
.ctx-fixed{
  display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 11px;border-radius:9px;
  border:1px solid var(--line);background:var(--bg-2);color:var(--ink-3);font-size:12.5px;font-weight:600;
}
.topbar-actions{display:flex;align-items:center;gap:6px}
.hamburger{display:none}
.user-chip{
  display:flex;align-items:center;gap:9px;padding:4px 10px 4px 4px;border-radius:999px;
  border:1px solid var(--line);background:#fff;cursor:pointer;transition:.16s;
}
.user-chip:hover{border-color:#c9dbd6;box-shadow:var(--shadow-sm)}
.user-chip .avatar{width:28px;height:28px;font-size:12px}
.user-meta{display:flex;flex-direction:column;line-height:1.2;align-items:flex-start}
.user-name{font-size:12.5px;font-weight:600}
.user-role{font-size:10.5px;color:var(--ink-3)}

.shell{display:flex;flex:1;min-height:0;align-items:stretch}
.sidebar{
  width:var(--side-w);flex:0 0 var(--side-w);background:#fff;border-right:1px solid var(--line);
  padding:14px 12px 24px;display:flex;flex-direction:column;gap:4px;position:sticky;
  top:var(--topbar-h);height:calc(100vh - var(--topbar-h));overflow-y:auto;
}
.nav-group{margin-top:14px;padding:0 10px 6px;font-size:10.5px;letter-spacing:.12em;color:var(--ink-4);font-weight:600}
.nav-item{
  display:flex;align-items:center;gap:10px;height:38px;padding:0 10px;border-radius:10px;
  color:var(--ink-2);font-size:13.5px;cursor:pointer;transition:.15s;position:relative;user-select:none;
}
.nav-item svg{width:17px;height:17px;opacity:.75;flex:0 0 auto}
.nav-item:hover{background:var(--bg-2);color:var(--ink)}
.nav-item:hover svg{opacity:1}
.nav-item.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600}
.nav-item.active svg{opacity:1;color:var(--primary)}
.nav-item.locked{opacity:.42;cursor:not-allowed}
.nav-item .nav-badge{
  margin-left:auto;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--danger);
  color:#fff;font-size:10.5px;display:grid;place-items:center;font-weight:600;
}
.nav-item .nav-new{
  margin-left:auto;font-size:9.5px;color:var(--ink-4);border:1px solid var(--line);border-radius:5px;padding:0 4px;
}
.side-foot{margin-top:auto;padding:12px 8px 0;border-top:1px solid var(--line-2);font-size:11px;color:var(--ink-4)}
.side-foot b{color:var(--ink-3);font-weight:600}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.content{padding:22px 26px 90px;max-width:1360px;width:100%;margin:0 auto}

/* 页面头 */
.page-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.page-head-txt{min-width:0}
.page-title{font-size:21px;font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.page-desc{color:var(--ink-3);font-size:13px;margin-top:4px}
.page-head-actions{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumb{font-size:12px;color:var(--ink-4);margin-bottom:7px;display:flex;gap:6px;align-items:center}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--primary-deep)}

/* ---------- 卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);min-width:0}
.card-pad{padding:18px}
.card-head{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--line-2)}
.card-title{font-size:14.5px;font-weight:650;display:flex;align-items:center;gap:8px}
.card-title .dot{width:6px;height:6px;border-radius:3px;background:var(--primary)}
.card-actions{margin-left:auto;display:flex;gap:6px;align-items:center}
.card-body{padding:18px}
.card-foot{padding:12px 18px;border-top:1px solid var(--line-2);display:flex;gap:8px;align-items:center}

/* 统计卡 */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:14px;margin-bottom:18px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:15px 16px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden;
  transition:.18s;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.stat-card::after{
  content:"";position:absolute;right:-26px;top:-26px;width:72px;height:72px;border-radius:50%;
  background:var(--primary-soft-2);
}
.stat-ico{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--primary-soft);
  color:var(--primary-deep);position:relative;z-index:1;
}
.stat-ico svg{width:16px;height:16px}
.stat-label{font-size:12px;color:var(--ink-3);position:relative;z-index:1}
.stat-value{font-size:25px;font-weight:700;letter-spacing:-.02em;line-height:1.1;position:relative;z-index:1}
.stat-value small{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:3px}
.stat-foot{font-size:11.5px;color:var(--ink-4);position:relative;z-index:1}
.stat-card.accent .stat-ico{background:var(--accent-soft);color:#a97a33}
.stat-card.ok .stat-ico{background:var(--ok-soft);color:var(--ok)}
.stat-card.danger .stat-ico{background:var(--danger-soft);color:var(--danger)}
.stat-card.info .stat-ico{background:var(--info-soft);color:var(--info)}
.stat-card.violet .stat-ico{background:var(--violet-soft);color:var(--violet)}

/* 栅格 */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2-1{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr)}
.grid-1-2{grid-template-columns:minmax(0,1fr) minmax(0,1.55fr)}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;align-items:center;gap:10px}
.row-wrap{flex-wrap:wrap}
.spacer{flex:1}
.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt20{margin-top:20px}.mt24{margin-top:24px}
.mb8{margin-bottom:8px}.mb12{margin-bottom:12px}.mb16{margin-bottom:16px}
.muted{color:var(--ink-3)}
.tiny{font-size:11.5px}
.small{font-size:12.5px}
.strong{font-weight:600}
.center{text-align:center}
.right{text-align:right}
.nowrap{white-space:nowrap}
.mono{font-family:var(--mono)}
.hidden{display:none !important}

/* 头像 */
.avatar{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
  font-size:13px;font-weight:650;color:#fff;background:linear-gradient(145deg,#79b0ac,#4e8d8a);
  letter-spacing:.02em;
}
.avatar.lg{width:56px;height:56px;border-radius:17px;font-size:20px}
.avatar.xl{width:72px;height:72px;border-radius:21px;font-size:26px}
.avatar.sm{width:26px;height:26px;border-radius:8px;font-size:11px}
.avatar.c1{background:linear-gradient(145deg,#8fbcb7,#4e8d8a)}
.avatar.c2{background:linear-gradient(145deg,#a6b7d6,#6c84ab)}
.avatar.c3{background:linear-gradient(145deg,#d6bb93,#b3905f)}
.avatar.c4{background:linear-gradient(145deg,#b5a9cf,#8377a8)}
.avatar.c5{background:linear-gradient(145deg,#9dc3a9,#63906f)}
.avatar.c6{background:linear-gradient(145deg,#d5a9a4,#b57a72)}
.avatar.c7{background:linear-gradient(145deg,#9cc0d9,#5f8ca8)}
.avatar.c8{background:linear-gradient(145deg,#c9c397,#9a9163)}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 8px;border-radius:6px;
  font-size:11.5px;font-weight:500;background:var(--bg-2);color:var(--ink-2);white-space:nowrap;
}
.tag.ok{background:var(--ok-soft);color:#437a58}
.tag.warn{background:var(--warn-soft);color:#a37c2b}
.tag.danger{background:var(--danger-soft);color:#a9534a}
.tag.info{background:var(--info-soft);color:#446e8e}
.tag.primary{background:var(--primary-soft);color:var(--primary-deep)}
.tag.violet{background:var(--violet-soft);color:#665b91}
.tag.outline{background:transparent;border:1px solid var(--line);color:var(--ink-3)}
.tag.lg{height:26px;padding:0 10px;font-size:12px;border-radius:8px}
.tag-dot{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.8}

/* 列表 */
.list{display:flex;flex-direction:column}
.list-item{
  display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--line-2);
  transition:.15s;cursor:pointer;
}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:var(--primary-soft-2)}
.li-main{min-width:0;flex:1}
.li-title{font-size:13.5px;font-weight:550;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.li-sub{font-size:12px;color:var(--ink-3);margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.li-sub span{display:inline-flex;align-items:center;gap:4px}
.li-right{display:flex;align-items:center;gap:8px;flex:0 0 auto}

/* 表格 */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th{
  text-align:left;padding:10px 14px;font-size:11.5px;font-weight:600;color:var(--ink-3);
  background:#fafcfb;border-bottom:1px solid var(--line);letter-spacing:.02em;white-space:nowrap;
}
table.tbl td{padding:11px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr{transition:.13s}
table.tbl tbody tr:hover{background:var(--primary-soft-2)}

/* 进度条 */
.bar{height:6px;border-radius:4px;background:var(--bg-2);overflow:hidden;position:relative}
.bar > i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,#6aaba6,#4e8d8a);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.bar.ok > i{background:linear-gradient(90deg,#79ad8c,#5a9670)}
.bar.warn > i{background:linear-gradient(90deg,#dbb877,#c39a44)}
.bar.danger > i{background:linear-gradient(90deg,#d9968d,#c1695f)}
.bar.lg{height:9px;border-radius:5px}

/* 表单 */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.field > label{font-size:12.5px;color:var(--ink-2);font-weight:550;display:flex;align-items:center;gap:5px}
.field .hint{font-size:11.5px;color:var(--ink-4)}
.input,.select,.textarea{
  width:100%;height:38px;padding:0 11px;border-radius:10px;border:1px solid var(--line);
  background:#fff;transition:.15s;outline:none;
}
.textarea{height:auto;padding:9px 11px;resize:vertical;min-height:78px;line-height:1.6}
.input:hover,.select:hover,.textarea:hover{border-color:#cfdedb}
.input:focus,.select:focus,.textarea:focus{border-color:#8fc0b9;box-shadow:0 0 0 3px rgba(78,141,138,.13)}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237b8f8b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;background-size:15px;padding-right:30px}
.check-row{display:flex;flex-wrap:wrap;gap:8px}
.chk{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 11px;border-radius:9px;
  border:1px solid var(--line);background:#fff;font-size:12.5px;cursor:pointer;transition:.15s;color:var(--ink-2);
}
.chk:hover{border-color:#cfdedb;background:#fbfdfc}
.chk input{display:none}
.chk::before{
  content:'';flex:0 0 auto;width:14px;height:14px;border-radius:4px;background:#fff;
  border:1.5px solid #c3d6d2;box-shadow:inset 0 0 0 0 var(--primary);transition:.15s;
}
.chk.on{border-color:#8fc0b9;background:var(--primary-soft);color:var(--primary-deep);font-weight:550}
.chk.on::before{
  border-color:var(--primary);background:var(--primary);
  box-shadow:inset 0 0 0 2.5px #fff;
}
.seg{display:inline-flex;padding:3px;background:var(--bg-2);border-radius:10px;gap:2px}
.seg button{
  height:30px;padding:0 13px;border:none;background:transparent;border-radius:8px;cursor:pointer;
  font-size:12.5px;color:var(--ink-3);transition:.15s;font-weight:500;
}
.seg button:hover{color:var(--ink)}
.seg button.on{background:#fff;color:var(--primary-deep);box-shadow:var(--shadow-sm);font-weight:600}
.switch{width:40px;height:22px;border-radius:12px;background:#dbe5e2;position:relative;cursor:pointer;transition:.2s;flex:0 0 auto}
.switch i{position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch.on{background:var(--primary)}
.switch.on i{left:20px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(24,38,36,.38);z-index:1000;opacity:0;transition:.22s;
  backdrop-filter:blur(2px);
}
.drawer-mask.in{opacity:1}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(640px,100vw);background:var(--bg);z-index:1001;
  display:flex;flex-direction:column;transform:translateX(100%);transition:transform .3s cubic-bezier(.32,.72,.28,1);
  box-shadow:var(--shadow-lg);
}
.drawer.in{transform:translateX(0)}
.drawer.wide{width:min(860px,100vw)}
.drawer-head{
  display:flex;align-items:center;gap:12px;padding:16px 20px;background:#fff;border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.drawer-title{font-size:16px;font-weight:650;display:flex;align-items:center;gap:9px}
.drawer-body{flex:1;overflow-y:auto;padding:20px;-webkit-overflow-scrolling:touch}
.drawer-foot{
  flex:0 0 auto;padding:13px 20px;background:#fff;border-top:1px solid var(--line);
  display:flex;gap:9px;align-items:center;
}
/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(24,38,36,.4);z-index:1100;display:grid;place-items:center;padding:20px;opacity:0;transition:.2s;backdrop-filter:blur(2px)}
.modal-mask.in{opacity:1}
.modal{
  background:#fff;border-radius:var(--radius-lg);width:min(520px,100%);max-height:86vh;display:flex;flex-direction:column;
  box-shadow:var(--shadow-lg);transform:scale(.96) translateY(8px);transition:.22s cubic-bezier(.32,.72,.28,1);
}
.modal-mask.in .modal{transform:scale(1) translateY(0)}
.modal-head{padding:18px 22px 6px;display:flex;align-items:flex-start;gap:12px}
.modal-title{font-size:16.5px;font-weight:650}
.modal-body{padding:10px 22px 4px;overflow-y:auto}
.modal-foot{padding:16px 22px 20px;display:flex;gap:9px;justify-content:flex-end}

/* Toast */
.toast-root{position:fixed;top:74px;left:50%;transform:translateX(-50%);z-index:3000;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{
  display:flex;align-items:center;gap:9px;background:#2b3d3a;color:#fff;padding:10px 16px;border-radius:11px;
  font-size:13px;box-shadow:0 10px 30px rgba(0,0,0,.22);animation:toastIn .26s cubic-bezier(.2,.9,.3,1);max-width:min(520px,92vw);
}
.toast.out{animation:toastOut .2s ease forwards}
.toast .t-ico{width:17px;height:17px;flex:0 0 auto;display:grid;place-items:center}
.toast.ok .t-ico{color:#8fd3a6}.toast.err .t-ico{color:#f0a49b}.toast.warn .t-ico{color:#e8c886}
@keyframes toastIn{from{opacity:0;transform:translateY(-10px) scale(.97)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateY(-8px)}}

/* ---------- 登录页 ---------- */
.login{
  min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  background:var(--bg);
}
.login-hero{
  position:relative;overflow:hidden;padding:52px 56px;display:flex;flex-direction:column;
  background:linear-gradient(155deg,#2f5d5a 0%,#3f7c79 42%,#5c9a96 100%);color:#fff;
}
.login-hero::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 65%);
}
.login-hero::after{
  content:"";position:absolute;left:-90px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12),transparent 62%);
}
.login-brand{display:flex;align-items:center;gap:11px;position:relative;z-index:1}
.login-brand .brand-mark{background:rgba(255,255,255,.16);box-shadow:none;border:1px solid rgba(255,255,255,.26);color:#fff}
.login-brand-title{font-size:17px;font-weight:700;letter-spacing:.04em}
.login-brand-sub{font-size:11px;opacity:.72;letter-spacing:.08em}
.login-copy{margin-top:auto;position:relative;z-index:1;max-width:460px}
.login-copy h1{font-size:34px;line-height:1.32;font-weight:700;letter-spacing:-.01em}
.login-copy h1 em{font-style:normal;color:#ffd9a6}
.login-copy p{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.82)}
.login-feats{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;position:relative;z-index:1}
.login-feat{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:6px 11px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.92);
}
.login-foot{position:relative;z-index:1;margin-top:auto;padding-top:30px;font-size:11px;color:rgba(255,255,255,.5)}

.login-panel{display:flex;align-items:center;justify-content:center;padding:36px 28px;overflow-y:auto}
.login-box{width:min(424px,100%)}
.login-title{font-size:24px;font-weight:700;letter-spacing:-.02em}
.login-sub{color:var(--ink-3);font-size:13px;margin-top:6px}
.role-pick{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:22px 0 14px}
.role-card{
  padding:12px 6px;border-radius:13px;border:1.5px solid var(--line);background:#fff;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:6px;transition:.18s;position:relative;min-width:0;
}
.role-card .role-name{white-space:nowrap}
.role-card .role-hint{text-align:center;line-height:1.35}
.role-card:hover{border-color:#b8d6d1;box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.role-card.on{border-color:var(--primary);background:var(--primary-soft-2);box-shadow:0 0 0 3px rgba(78,141,138,.1)}
.role-card .r-ico{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:var(--bg-2);color:var(--ink-2)}
.role-card .r-ico svg{width:19px;height:19px}
.role-card.on .r-ico{background:var(--primary);color:#fff}
.role-name{font-size:13px;font-weight:600}
.role-hint{font-size:10.5px;color:var(--ink-4)}
.login-form{display:flex;flex-direction:column;gap:13px}
.demo-box{margin-top:18px;border-top:1px dashed var(--line);padding-top:14px}
.demo-title{font-size:11.5px;color:var(--ink-4);display:flex;align-items:center;gap:8px;margin-bottom:9px}
.demo-list{display:flex;flex-direction:column;gap:6px}
.demo-item{
  display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;font-size:12px;transition:.15s;
}
.demo-item:hover{border-color:#c9dbd6;background:var(--primary-soft-2)}
.demo-item .avatar{width:24px;height:24px;font-size:10.5px;border-radius:7px}
.demo-item .d-acc{color:var(--ink-4);font-family:var(--mono);font-size:11px}
.login-error{
  background:var(--danger-soft);color:#a9534a;border:1px solid #f0d6d2;border-radius:10px;
  padding:9px 12px;font-size:12.5px;display:flex;gap:7px;align-items:center;
}
.login-notice{font-size:11px;color:var(--ink-4);margin-top:14px;line-height:1.7}

/* ---------- 注册页 ---------- */
.reg-box{width:min(468px,100%)}
.reg-back{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--ink-3);
  margin-bottom:14px;text-decoration:none;
}
.reg-back:hover{color:var(--primary-deep)}
.role-pick.role-pick-3{grid-template-columns:repeat(3,1fr);margin:20px 0 16px}
.reg-row{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.reg-row .field{min-width:0}
.reg-entry{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-3);
  margin-top:2px;
}
.reg-entry a{color:var(--primary-deep);font-weight:600;text-decoration:none}
.reg-entry a:hover{text-decoration:underline}
.reg-entry .tiny{flex-basis:100%}
.reg-hint{
  display:flex;gap:8px;align-items:flex-start;font-size:11.5px;line-height:1.65;color:var(--ink-3);
  background:var(--primary-soft-2);border:1px solid #d9e8e5;border-radius:10px;padding:9px 11px;
}
.reg-hint svg{color:var(--primary);flex:0 0 auto;margin-top:1px}
.chip-row.chip-wrap{flex-wrap:wrap;gap:6px}
.chip-row.chip-wrap .chk{font-size:12px}
.reg-done{text-align:center;padding:14px 0 4px}
.reg-done-ico{
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;margin:0 auto 14px;
  background:var(--primary-soft);color:var(--primary-deep);border:1px solid #cfe4e0;
}
.reg-done-title{font-size:17px;font-weight:700}
.reg-done-sub{font-size:12.5px;color:var(--primary-deep);margin-top:6px}
.reg-done-body{font-size:12.5px;color:var(--ink-3);line-height:1.8;margin:12px 0 18px}
.reg-done-body b{color:var(--ink)}

/* ---------- 账号管理（管理员） ---------- */
.pend-item{
  display:flex;align-items:center;gap:11px;padding:12px 14px;border-bottom:1px solid var(--line-2);
}
.pend-item:last-child{border-bottom:none}
.pend-main{flex:1;min-width:0}
.assign-list{display:flex;flex-direction:column;gap:9px}
.assign-row{
  display:grid;grid-template-columns:1fr auto;gap:10px 12px;align-items:center;
  padding:11px 13px;border:1.5px solid var(--line);border-radius:12px;background:#fff;transition:.15s;
}
.assign-row.on{border-color:#bfdcd6;background:var(--primary-soft-2)}
.assign-row .chk{justify-self:start;height:34px}
.assign-row [data-subs]{grid-column:1/-1;margin-top:2px}
.assign-row [data-head-tip]{grid-column:1/-1}
.assign-row .chk{font-size:13px}
@media (max-width:640px){
  .assign-row{grid-template-columns:1fr auto}
}

/* ---------- 学生画像 ---------- */
.profile-hero{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  display:flex;gap:18px;align-items:flex-start;flex-wrap:wrap;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.profile-hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:76px;
  background:linear-gradient(120deg,#eaf3f1,#f6faf9);
}
.profile-hero > *{position:relative}
.profile-id{display:flex;gap:14px;align-items:center;min-width:0}
.profile-name{font-size:20px;font-weight:700;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.profile-meta{font-size:12.5px;color:var(--ink-3);margin-top:3px;display:flex;gap:12px;flex-wrap:wrap}
.profile-stats{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap}
.p-stat{text-align:center;min-width:62px}
.p-stat b{display:block;font-size:20px;font-weight:700;letter-spacing:-.02em}
.p-stat span{font-size:11px;color:var(--ink-3)}

.kp-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line-2)}
.kp-row:last-child{border-bottom:none}
.kp-name{font-size:13px;font-weight:550;flex:0 0 132px}
.kp-bar{flex:1;min-width:80px}
.kp-val{font-size:11.5px;color:var(--ink-3);flex:0 0 auto;width:52px;text-align:right}

.dim-row{display:flex;align-items:center;gap:10px;margin-bottom:11px}
.dim-label{font-size:12.5px;flex:0 0 74px;color:var(--ink-2)}
.dim-val{font-size:11.5px;color:var(--ink-3);flex:0 0 auto;width:34px;text-align:right}

.timeline{position:relative;padding-left:20px}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-bottom:16px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-19px;top:5px;width:9px;height:9px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);
}
.tl-item.ok::before{border-color:var(--ok)}
.tl-item.warn::before{border-color:var(--warn)}
.tl-item.danger::before{border-color:var(--danger)}
.tl-time{font-size:11px;color:var(--ink-4)}
.tl-title{font-size:13px;font-weight:550;margin-top:1px}
.tl-body{font-size:12px;color:var(--ink-3);margin-top:2px}

/* ---------- 作业批改 ---------- */
.dropzone{
  border:1.5px dashed #c6d9d5;border-radius:var(--radius);background:var(--primary-soft-2);
  padding:30px 20px;text-align:center;transition:.18s;cursor:pointer;
}
.dropzone:hover,.dropzone.over{border-color:var(--primary);background:#eaf4f2}
.dropzone .dz-ico{width:46px;height:46px;border-radius:14px;background:#fff;display:grid;place-items:center;margin:0 auto 11px;color:var(--primary);box-shadow:var(--shadow-sm)}
.dz-title{font-size:14px;font-weight:600}
.dz-sub{font-size:12px;color:var(--ink-3);margin-top:4px}
.dz-formats{display:flex;gap:6px;justify-content:center;margin-top:11px}

.file-pill{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:11px;
  background:#fff;margin-top:10px;
}
.file-thumb{width:38px;height:38px;border-radius:9px;background:var(--bg-2);display:grid;place-items:center;color:var(--ink-3);overflow:hidden;flex:0 0 auto}
.file-thumb img{width:100%;height:100%;object-fit:cover}

.q-item{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:11px;background:#fff;transition:.15s}
.q-item:hover{border-color:#d3e3df}
.q-item.wrong{border-color:#f0d6d2;background:#fffafa}
.q-head{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.q-no{width:22px;height:22px;border-radius:7px;background:var(--bg-2);display:grid;place-items:center;font-size:11.5px;font-weight:600;color:var(--ink-2)}
.q-item.wrong .q-no{background:var(--danger);color:#fff}
.q-stem{font-size:13.5px;line-height:1.75;color:var(--ink)}
.q-ans{display:flex;gap:18px;margin-top:9px;font-size:12.5px;flex-wrap:wrap}
.q-ans .a{display:flex;gap:6px;align-items:baseline}
.q-ans .a span:first-child{color:var(--ink-4);font-size:11.5px}
.ans-wrong{color:var(--danger);text-decoration:line-through;text-decoration-color:#e5b9b3}
.ans-ok{color:var(--ok);font-weight:600}
.q-analysis{
  margin-top:10px;padding:10px 12px;border-radius:9px;background:#fafcfb;border-left:2px solid #cfe3df;
  font-size:12.5px;color:var(--ink-2);line-height:1.75;
}
.score-ring{
  width:96px;height:96px;border-radius:50%;display:grid;place-items:center;position:relative;flex:0 0 auto;
}
.score-ring svg{transform:rotate(-90deg)}
.score-ring .sr-txt{position:absolute;text-align:center;line-height:1.15}
.score-ring .sr-num{font-size:23px;font-weight:700;letter-spacing:-.02em}
.score-ring .sr-sub{font-size:10px;color:var(--ink-4)}

/* ---------- 试卷 / 课件预览 ---------- */
.paper{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 46px;
  box-shadow:var(--shadow-sm);max-width:820px;margin:0 auto;
}
.paper-head{text-align:center;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:20px}
.paper-title{font-size:21px;font-weight:700;letter-spacing:.04em}
.paper-meta{font-size:12.5px;color:var(--ink-3);margin-top:8px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.paper-sec{font-size:14.5px;font-weight:650;margin:22px 0 10px;display:flex;align-items:center;gap:8px}
.paper-sec .tier-tag{font-size:11px;font-weight:500;padding:2px 7px;border-radius:6px;background:var(--primary-soft);color:var(--primary-deep)}
.paper-q{margin-bottom:16px;font-size:13.5px;line-height:1.85}
.paper-q .pq-no{font-weight:600;margin-right:5px}
.paper-q .pq-opts{margin-top:5px;display:flex;flex-direction:column;gap:3px;padding-left:14px;color:var(--ink-2)}
.paper-q .pq-ans{margin-top:5px;font-size:12.5px;color:var(--ink-3);display:flex;gap:12px;flex-wrap:wrap}
.paper-q .pq-ans b{color:var(--ok);font-weight:600}
.paper-q .pq-analysis{margin-top:5px;font-size:12.5px;color:var(--ink-2);background:#fafcfb;padding:8px 11px;border-radius:8px;border-left:2px solid #cfe3df}

.slide-deck{display:flex;flex-direction:column;gap:14px}
.slide{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:.18s;
}
.slide:hover{box-shadow:var(--shadow)}
.slide-body{padding:24px 26px;min-height:150px;display:flex;flex-direction:column;gap:10px}
.slide-tag{font-size:10.5px;color:var(--primary-deep);background:var(--primary-soft);display:inline-block;padding:2px 8px;border-radius:6px;width:max-content;letter-spacing:.06em}
.slide-title{font-size:17px;font-weight:650}
.slide-bullets{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-2);line-height:1.8}
.slide-bullets li{list-style:none;padding-left:15px;position:relative}
.slide-bullets li::before{content:"";position:absolute;left:2px;top:9px;width:5px;height:5px;border-radius:50%;background:#9dc3bd}
.slide-note{font-size:12px;color:var(--ink-4);border-top:1px dashed var(--line);padding-top:8px;margin-top:auto}
.slide-visual{
  border-radius:10px;overflow:hidden;background:linear-gradient(150deg,#f3f9f7,#e9f2ef);border:1px solid var(--line-2);
  display:grid;place-items:center;padding:8px;
}

/* 视频分镜 */
.storyboard{display:flex;gap:0;overflow-x:auto;padding-bottom:6px}
.sb-item{flex:0 0 168px;border-right:1px dashed var(--line);padding:10px 12px;cursor:pointer;transition:.15s}
.sb-item:last-child{border-right:none}
.sb-item:hover{background:var(--primary-soft-2)}
.sb-item.on{background:var(--primary-soft)}
.sb-no{font-size:10px;color:var(--ink-4);font-family:var(--mono)}
.sb-scene{font-size:12.5px;font-weight:550;margin-top:3px}
.sb-narration{font-size:11.5px;color:var(--ink-3);margin-top:3px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- AI 生成中 ---------- */
.ai-loading{
  display:flex;flex-direction:column;align-items:center;gap:14px;padding:38px 20px;text-align:center;
}
.ai-orb{width:56px;height:56px;border-radius:50%;position:relative;display:grid;place-items:center}
.ai-orb::before,.ai-orb::after{
  content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #b9d9d4;animation:pulse 1.8s ease-out infinite;
}
.ai-orb::after{animation-delay:.7s}
@keyframes pulse{0%{transform:scale(.7);opacity:.9}100%{transform:scale(1.5);opacity:0}}
.ai-orb-core{
  width:34px;height:34px;border-radius:50%;background:linear-gradient(145deg,#6fafaa,#417f7c);
  display:grid;place-items:center;color:#fff;box-shadow:0 6px 16px rgba(78,141,138,.3);
}
.ai-orb-core svg{width:17px;height:17px;animation:spin 3s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.ai-loading-title{font-size:14px;font-weight:600}
.ai-loading-sub{font-size:12px;color:var(--ink-3);min-height:19px}
.ai-progress{width:min(300px,80%);height:5px;border-radius:4px;background:var(--bg-2);overflow:hidden}
.ai-progress i{display:block;height:100%;width:0;border-radius:4px;background:linear-gradient(90deg,#7dbab4,#4e8d8a);transition:width .35s}
.ai-steps{display:flex;flex-direction:column;gap:6px;text-align:left;margin-top:4px;min-width:min(320px,90%)}
.ai-step{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-4);transition:.2s}
.ai-step .st-dot{width:14px;height:14px;border-radius:50%;border:1.5px solid #d5e2df;display:grid;place-items:center;flex:0 0 auto}
.ai-step .st-dot svg{width:9px;height:9px;opacity:0}
.ai-step.on{color:var(--ink-2)}
.ai-step.on .st-dot{border-color:var(--primary);background:var(--primary)}
.ai-step.on .st-dot svg{opacity:1;color:#fff}
.ai-step.done{color:var(--ink-3)}
.ai-step.done .st-dot{border-color:var(--ok);background:var(--ok)}
.ai-step.done .st-dot svg{opacity:1;color:#fff}

.watermark-note{
  display:flex;align-items:flex-start;gap:8px;padding:9px 12px;border-radius:10px;background:var(--warn-soft);
  border:1px solid #f0e2c4;color:#96702a;font-size:11.5px;line-height:1.6;
}
.watermark-note svg{width:14px;height:14px;flex:0 0 auto;margin-top:2px}
.disclaimer{
  display:flex;align-items:flex-start;gap:9px;padding:12px 14px;border-radius:11px;
  background:#fdf6f4;border:1px solid #f1ddd8;color:#a0605a;font-size:12px;line-height:1.7;
}
.disclaimer svg{width:15px;height:15px;flex:0 0 auto;margin-top:2px}

/* ---------- 悬浮 AI 助手 ---------- */
.asst-bubble{
  position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;z-index:1500;
  background:linear-gradient(150deg,#5fa09c,#3f7c79);color:#fff;display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(63,124,121,.38),0 2px 6px rgba(0,0,0,.12);cursor:grab;
  touch-action:none;user-select:none;transition:transform .18s,box-shadow .18s;
}
.asst-bubble:hover{transform:scale(1.06)}
.asst-bubble:active{cursor:grabbing}
.asst-bubble svg{width:24px;height:24px;pointer-events:none}
.asst-bubble .asst-dot{
  position:absolute;top:-1px;right:-1px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;
  background:var(--danger);color:#fff;font-size:10.5px;font-weight:600;display:grid;place-items:center;
  border:2px solid #fff;
}
.asst-hint{
  position:absolute;right:64px;top:50%;transform:translateY(-50%);white-space:nowrap;background:#2b3d3a;color:#fff;
  font-size:12px;padding:6px 11px;border-radius:8px;opacity:0;pointer-events:none;transition:.16s;
}
.asst-bubble:hover .asst-hint{opacity:1}
.asst-panel{
  position:fixed;right:24px;bottom:92px;width:min(392px,calc(100vw - 32px));height:min(600px,calc(100vh - 120px));
  background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);z-index:1499;display:flex;flex-direction:column;
  overflow:hidden;border:1px solid var(--line);transform-origin:bottom right;
  animation:panelIn .24s cubic-bezier(.2,.9,.3,1);
}
@keyframes panelIn{from{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:none}}
.asst-head{
  padding:13px 14px;background:linear-gradient(135deg,#4e8d8a,#3f7c79);color:#fff;display:flex;align-items:center;gap:10px;flex:0 0 auto;
}
.asst-head .asst-ava{width:32px;height:32px;border-radius:10px;background:rgba(255,255,255,.18);display:grid;place-items:center;border:1px solid rgba(255,255,255,.24)}
.asst-head .asst-ava svg{width:17px;height:17px}
.asst-head-txt{line-height:1.25;min-width:0}
.asst-head-txt b{font-size:13.5px;font-weight:650}
.asst-head-txt span{display:block;font-size:10.5px;opacity:.78}
.asst-head-btns{margin-left:auto;display:flex;gap:2px}
.asst-head-btns button{
  width:26px;height:26px;border-radius:7px;border:none;background:transparent;color:rgba(255,255,255,.85);cursor:pointer;
  display:grid;place-items:center;transition:.15s;
}
.asst-head-btns button:hover{background:rgba(255,255,255,.18);color:#fff}
.asst-head-btns svg{width:15px;height:15px}
.asst-body{flex:1;overflow-y:auto;padding:14px;background:#fbfdfc;display:flex;flex-direction:column;gap:12px}
.asst-welcome{display:flex;flex-direction:column;gap:10px}
.asst-welcome-card{
  background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 14px;
}
.asst-welcome-card b{font-size:13px}
.asst-welcome-card p{font-size:12px;color:var(--ink-3);margin-top:4px;line-height:1.7}
.msg{display:flex;gap:8px;max-width:100%}
.msg.me{flex-direction:row-reverse}
.msg-ava{width:26px;height:26px;border-radius:8px;flex:0 0 auto;display:grid;place-items:center;font-size:10.5px;font-weight:600;color:#fff;background:linear-gradient(145deg,#79b0ac,#4e8d8a)}
.msg.me .msg-ava{background:var(--bg-2);color:var(--ink-2)}
.msg-bubble{
  max-width:80%;padding:10px 13px;border-radius:13px;font-size:13px;line-height:1.72;background:#fff;
  border:1px solid var(--line);color:var(--ink);white-space:pre-wrap;word-break:break-word;
}
.msg.me .msg-bubble{background:var(--primary);border-color:var(--primary);color:#fff}
.msg-bubble .m-actions{display:flex;gap:6px;margin-top:9px;flex-wrap:wrap}
.msg-bubble .m-act{
  font-size:11.5px;padding:4px 9px;border-radius:7px;border:1px solid #d7e4e1;background:#fbfdfc;color:var(--primary-deep);
  cursor:pointer;transition:.15s;
}
.msg-bubble .m-act:hover{background:var(--primary-soft);border-color:#b8d6d1}
.msg-bubble .m-card{
  margin-top:9px;border:1px solid var(--line);border-radius:10px;padding:9px 11px;background:#fbfdfc;font-size:12px;
}
.msg-bubble .m-card b{display:block;margin-bottom:3px;color:var(--ink)}
.msg-typing{display:flex;gap:4px;align-items:center;padding:12px 14px}
.msg-typing i{width:6px;height:6px;border-radius:50%;background:#b3c9c5;animation:typing 1.2s infinite}
.msg-typing i:nth-child(2){animation-delay:.15s}
.msg-typing i:nth-child(3){animation-delay:.3s}
@keyframes typing{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}
.asst-quick{
  display:flex;gap:6px;padding:8px 12px 6px;flex:0 0 auto;background:#fbfdfc;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.asst-quick::-webkit-scrollbar{display:none}
.q-chip{
  flex:0 0 auto;font-size:11.5px;padding:5px 10px;border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--ink-2);cursor:pointer;transition:.15s;white-space:nowrap;
}
.q-chip:hover{border-color:#b8d6d1;background:var(--primary-soft-2);color:var(--primary-deep)}
.asst-input{
  flex:0 0 auto;padding:10px 12px 12px;background:#fbfdfc;border-top:1px solid var(--line);
  display:flex;gap:8px;align-items:flex-end;
}
.asst-input textarea{
  flex:1;min-height:38px;max-height:96px;border-radius:11px;border:1px solid var(--line);padding:9px 11px;
  resize:none;font-size:13px;background:#fff;outline:none;line-height:1.5;
}
.asst-input textarea:focus{border-color:#8fc0b9;box-shadow:0 0 0 3px rgba(78,141,138,.12)}
.asst-send{
  width:38px;height:38px;border-radius:11px;border:none;background:var(--primary);color:#fff;display:grid;place-items:center;
  cursor:pointer;transition:.15s;flex:0 0 auto;
}
.asst-send:hover{background:var(--primary-deep)}
.asst-send svg{width:17px;height:17px}
.asst-send[disabled]{opacity:.45;cursor:not-allowed}
.asst-mini{
  position:fixed;right:24px;bottom:24px;z-index:1500;display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px 7px 8px;cursor:pointer;
  box-shadow:var(--shadow);transition:.18s;
}
.asst-mini:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px)}
.asst-mini .asst-ava{width:28px;height:28px;border-radius:50%;background:linear-gradient(145deg,#5fa09c,#3f7c79);color:#fff;display:grid;place-items:center}
.asst-mini .asst-ava svg{width:15px;height:15px}
.asst-mini span{font-size:12.5px;font-weight:550}

/* ---------- 空状态 ---------- */
.empty{display:flex;flex-direction:column;align-items:center;gap:10px;padding:44px 20px;text-align:center}
.empty-ico{width:52px;height:52px;border-radius:16px;background:var(--bg-2);display:grid;place-items:center;color:var(--ink-4)}
.empty-ico svg{width:24px;height:24px}
.empty-title{font-size:14px;font-weight:600;color:var(--ink-2)}
.empty-sub{font-size:12.5px;color:var(--ink-4);max-width:340px;line-height:1.7}

/* ---------- 消息中心 ---------- */
.msg-row{display:flex;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line-2);cursor:pointer;transition:.15s;position:relative}
.msg-row:hover{background:var(--primary-soft-2)}
.msg-row.unread{background:#fbfefd}
.msg-row.unread::before{content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--primary)}
.msg-ico{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto}
.msg-ico svg{width:16px;height:16px}
.msg-ico.t1{background:var(--info-soft);color:var(--info)}
.msg-ico.t2{background:var(--primary-soft);color:var(--primary-deep)}
.msg-ico.t3{background:var(--accent-soft);color:#a97a33}
.msg-ico.t4{background:var(--violet-soft);color:var(--violet)}
.msg-ico.t5{background:var(--danger-soft);color:var(--danger)}

/* ---------- 模型配置 ---------- */
.model-card{border:1px solid var(--line);border-radius:13px;padding:14px 15px;background:#fff;transition:.16s}
.model-card:hover{border-color:#d3e3df;box-shadow:var(--shadow-sm)}
.model-card.active{border-color:#9dc9c3;background:var(--primary-soft-2)}
.model-name{font-size:13px;font-weight:600;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.model-type{font-size:11px;color:var(--ink-4);margin-top:2px}
.kv{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line-2);font-size:12.5px}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--ink-3)}
.kv .v{font-weight:550;text-align:right}

/* ---------- 其他 ---------- */
.divider{height:1px;background:var(--line);margin:16px 0}
.section-title{font-size:13px;font-weight:650;display:flex;align-items:center;gap:7px;margin-bottom:12px}
.section-title::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--primary)}
.chip-row{display:flex;gap:7px;flex-wrap:wrap}
.avatar-stack{display:flex}
.avatar-stack .avatar{margin-left:-7px;border:2px solid #fff}
.avatar-stack .avatar:first-child{margin-left:0}
.class-card{transition:.18s;cursor:pointer;overflow:hidden}
.class-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.class-cover{height:74px;background:linear-gradient(120deg,#dfeeea,#eef6f3);position:relative;overflow:hidden}
.class-cover::after{
  content:"";position:absolute;right:-20px;bottom:-40px;width:120px;height:120px;border-radius:50%;
  background:rgba(78,141,138,.09);
}
.class-cover.c2{background:linear-gradient(120deg,#e6ebf5,#f1f4fa)}
.class-cover.c3{background:linear-gradient(120deg,#f5efe3,#fbf7ee)}
.class-cover.c4{background:linear-gradient(120deg,#efeaf7,#f6f3fb)}
.bind-code{
  font-family:var(--mono);font-size:22px;letter-spacing:.24em;font-weight:700;color:var(--primary-deep);
  background:var(--primary-soft);padding:8px 14px;border-radius:10px;display:inline-block;
}
.bind-code.sm{
  font-size:12.5px;letter-spacing:.06em;padding:4px 9px;border-radius:7px;white-space:nowrap;
  background:var(--primary-soft);color:var(--primary-deep);font-weight:650;
}
.bind-code.xs{
  font-size:11.5px;letter-spacing:.03em;padding:2px 7px;border-radius:6px;white-space:nowrap;
  background:#f2f6f5;color:var(--ink-2);font-weight:600;
}
.risk-badge{
  display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:7px;font-size:11.5px;font-weight:550;
}
.risk-low{background:var(--ok-soft);color:#437a58}
.risk-mid{background:var(--warn-soft);color:#a37c2b}
.risk-high{background:var(--danger-soft);color:#a9534a}
.plan-list{display:flex;flex-direction:column;gap:9px}
.plan-item{display:flex;gap:10px;padding:11px 13px;border-radius:10px;background:#fafcfb;border:1px solid var(--line-2)}
.plan-day{font-size:11px;font-weight:650;color:var(--primary-deep);background:var(--primary-soft);padding:1px 7px;border-radius:6px;height:max-content;white-space:nowrap}
.plan-txt{font-size:12.5px;line-height:1.7;color:var(--ink-2)}
.search-box{position:relative;min-width:180px}
.search-box svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--ink-4)}
.search-box .input{padding-left:32px;height:34px}

/* 权限提示 */
.deny{
  display:flex;flex-direction:column;align-items:center;gap:12px;padding:70px 20px;text-align:center;
}
.deny-ico{width:60px;height:60px;border-radius:20px;background:var(--danger-soft);color:var(--danger);display:grid;place-items:center}
.deny-ico svg{width:26px;height:26px}
.deny h3{font-size:17px}
.deny p{font-size:13px;color:var(--ink-3);max-width:400px;line-height:1.75}

/* 动画 */
.fade-in{animation:fadeIn .28s ease both}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.skeleton{background:linear-gradient(90deg,#eef4f2 25%,#f7fbfa 37%,#eef4f2 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:6px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .login-hero{padding:40px 36px}
  .login-copy h1{font-size:28px}
}
@media (max-width:980px){
  .login{grid-template-columns:1fr}
  .login-hero{display:none}
  .login-panel{padding:28px 20px;min-height:100vh}
  .grid-2,.grid-3,.grid-2-1,.grid-1-2{grid-template-columns:minmax(0,1fr)}
  :root{--side-w:220px}
  .content{padding:18px 16px 96px}
  .hamburger{display:inline-grid}
  .sidebar{
    position:fixed;left:0;top:var(--topbar-h);bottom:0;height:auto;z-index:700;transform:translateX(-102%);
    transition:transform .26s cubic-bezier(.32,.72,.28,1);box-shadow:var(--shadow-lg);width:264px;flex-basis:264px;
  }
  .sidebar.open{transform:translateX(0)}
  .side-mask{position:fixed;inset:var(--topbar-h) 0 0 0;background:rgba(24,38,36,.32);z-index:690;opacity:0;transition:.2s}
  .side-mask.in{opacity:1}
  .brand-sub{display:none}
  .profile-stats{margin-left:0;width:100%;justify-content:space-between;border-top:1px solid var(--line-2);padding-top:12px}
  .paper{padding:26px 20px}
}
@media (max-width:640px){
  body{font-size:13.5px}
  .topbar{padding:0 10px;gap:6px}
  .brand-name{font-size:14px}
  .user-meta{display:none}
  .user-chip{padding:3px}
  .topbar-ctx{gap:5px;margin-right:4px;min-width:0}
  .ctx-pick,.ctx-fixed{height:30px;padding:0 6px;font-size:12px;gap:3px}
  .ctx-pick select{font-size:12px;padding-right:13px;max-width:78px}
  .ctx-pick svg{display:none}
  .content{padding:14px 12px 100px}
  .page-title{font-size:18px}
  .page-head-actions{width:100%;margin-left:0}
  .page-head-actions .btn{flex:1}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .stat-value{font-size:21px}
  .card-body,.card-pad{padding:14px}
  .card-head{padding:12px 14px}
  .list-item{padding:11px 14px}
  .form-grid{grid-template-columns:1fr}
  .drawer{width:100vw;border-radius:0}
  .drawer-body{padding:14px}
  .asst-bubble,.asst-mini{right:16px;bottom:16px}
  .asst-panel{right:8px;left:8px;bottom:80px;width:auto;height:min(78vh,600px)}
  .modal{width:100%}
  .role-pick{gap:8px}
  .role-card{padding:11px 6px}
  .paper{padding:20px 14px;border-radius:10px}
  .profile-hero{padding:16px}
  .li-right .btn span{display:none}
  .login-copy h1{font-size:24px}
  .reg-row{grid-template-columns:1fr}
  .role-pick.role-pick-3{gap:7px}
  .role-card{padding:10px 4px}
  .role-card .role-hint{font-size:10px}
  table.tbl th,table.tbl td{padding:9px 10px;font-size:12.5px}
  .toast-root{top:auto;bottom:84px;width:100%;padding:0 12px}
  .toast{width:100%;justify-content:flex-start}
}
@media print{
  .topbar,.sidebar,.asst-bubble,.asst-panel,.page-head-actions,.no-print{display:none !important}
  body{background:#fff}
  .content{padding:0;max-width:none}
  .paper{border:none;box-shadow:none;padding:0;max-width:none}
}

/* ==========================================================
   V1.4 多校体系：超管建校 / 学校负责人 / 批量建班 / 归班
   ========================================================== */
.btn-xs{height:24px;padding:0 8px;font-size:11.5px;border-radius:6px;gap:3px}
.req{color:var(--danger);font-weight:700}
.role-pick-3{grid-template-columns:repeat(3,1fr)}
.role-pick-4{grid-template-columns:repeat(4,1fr)}
.sec-divider{display:flex;align-items:center;gap:10px;margin:16px 0 12px;font-size:12px;color:var(--ink-4);font-weight:600}
.sec-divider::after{content:'';flex:1;height:1px;background:var(--line)}

/* ---- 学校卡片（超管） ---- */
.sch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(318px,1fr));gap:14px}
.sch-card{border:1.5px solid var(--line);border-radius:14px;background:#fff;padding:15px 16px;
  display:flex;flex-direction:column;gap:11px;transition:.18s}
.sch-card:hover{border-color:#c9ded9;box-shadow:0 6px 20px rgba(16,74,66,.07)}
.sch-card.off{opacity:.72;background:var(--surface-2)}
.sch-head{display:flex;align-items:center;gap:11px}
.sch-mark{width:38px;height:38px;border-radius:11px;background:var(--primary-soft);color:var(--primary-deep);
  display:grid;place-items:center;font-weight:800;font-size:16px;flex:none}
.sch-id{flex:1;min-width:0}
.sch-name{font-weight:700;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sch-rows{display:flex;flex-direction:column;gap:6px;font-size:12.5px}
.sch-row{display:flex;align-items:center;gap:8px;min-width:0}
.sch-row>span:first-child{color:var(--ink-4);width:60px;flex:none;font-size:11.5px}
.sch-row>b{font-weight:600}
.sch-link{font-size:11.5px;color:var(--ink-4);background:var(--surface-2);border-radius:8px;
  padding:7px 9px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sch-acts{display:flex;gap:6px;flex-wrap:wrap}

/* ---- 接入流程 ---- */
.flow-row{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.flow-step{display:flex;gap:8px;align-items:flex-start}
.flow-num{width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;font-size:11.5px;
  font-weight:700;display:grid;place-items:center;flex:none}
.flow-txt{font-size:12px;line-height:1.55}

/* ---- 链接展示 ---- */
.link-box{font-size:12px;background:var(--surface-2);border:1px solid var(--line);border-radius:9px;
  padding:9px 11px;word-break:break-all;line-height:1.6}
.link-acts{display:flex;gap:8px;margin-top:12px}

/* ---- 批量建班预览 ---- */
.bc-preview{margin-top:14px;padding:12px;border-radius:10px;background:#f0f7f5;border:1px solid #dbeae6}
.bc-count{font-size:12.5px;margin-bottom:8px}
.bc-count b{font-size:15px;color:var(--primary-deep)}
.bc-names{display:flex;flex-wrap:wrap;gap:6px}
.bc-chip{font-size:12px;background:#fff;border:1px solid #d9e8e4;border-radius:6px;padding:3px 8px;
  font-variant-numeric:tabular-nums}
.bc-more{font-size:12px;color:var(--ink-4);align-self:center}
.bc-bad{color:var(--danger);font-size:12.5px;font-weight:600}

/* ---- 班级卡片（负责人） ---- */
.cls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(212px,1fr));gap:12px;margin-bottom:16px}
.cls-card{border:1.5px solid var(--line);border-radius:12px;background:#fff;padding:12px 13px;
  display:flex;flex-direction:column;gap:8px;transition:.16s}
.cls-card:hover{border-color:#c9ded9}
.cls-card.off{opacity:.65;background:var(--surface-2)}
.cls-head{display:flex;align-items:center;gap:7px;justify-content:space-between}
.cls-name{font-weight:700;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cls-meta{font-size:11.5px;color:var(--ink-4)}
.cls-code{display:flex;align-items:center;gap:6px;font-size:12px;background:var(--surface-2);
  border:1px dashed var(--line);border-radius:7px;padding:5px 8px;cursor:pointer;color:var(--primary-deep)}
.cls-code:hover{background:#eef7f5}
.cls-code .mono{flex:1;letter-spacing:.06em}
.cls-acts{display:flex;gap:6px;margin-top:2px}

/* ---- 注册页：学校标识 ---- */
.sch-bind{display:flex;align-items:center;gap:10px;background:#eff7f5;border:1px solid #d7e9e4;
  border-radius:11px;padding:9px 11px;margin:14px 0 2px}
.sch-bind-ico{width:30px;height:30px;border-radius:9px;background:#fff;display:grid;place-items:center;
  color:var(--primary-deep);flex:none}
.sch-bind-main{flex:1;min-width:0}
.sch-bind-name{font-weight:700;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sch-manual{margin:14px 0 2px}

/* ---- 老师注册：多条任教 ---- */
.tr-list{display:flex;flex-direction:column;gap:10px}
.tr-row{display:grid;grid-template-columns:1fr 1fr auto;gap:9px;align-items:end;padding:11px;
  border:1.5px solid var(--line);border-radius:11px;background:var(--surface-2)}
.tr-row .tr-subs-field{grid-column:1/-1}
.tr-del{width:28px;height:28px;border-radius:8px;border:1px solid var(--line);background:#fff;
  color:var(--ink-4);display:grid;place-items:center;cursor:pointer;margin-bottom:2px}
.tr-del:hover{color:var(--danger);border-color:#f0c9c9}

/* ---- 待审核明细 ---- */
.pd-list{display:flex;flex-direction:column;gap:6px;margin:12px 0}
.pd-row{display:flex;align-items:center;gap:8px;font-size:12.5px;background:var(--surface-2);
  border-radius:8px;padding:7px 10px}
.pd-row>span:first-child{flex:1;font-weight:600}

/* ---- 班级码清单 ---- */
.cc-list{display:flex;flex-direction:column;gap:7px}
.cc-row{display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid var(--line);
  border-radius:9px;font-size:12.5px}
.cc-name{flex:1;font-weight:600}

/* ---- 提示态 ---- */
.reg-hint.warn{background:#fdf6e8;border-color:#f0dfb8;color:#8a6d2f}

@media (max-width:760px){
  .flow-row{grid-template-columns:1fr;gap:8px}
  .sch-grid{grid-template-columns:1fr}
  .cls-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .tr-row{grid-template-columns:1fr}
  .tr-row .tr-del{position:absolute;right:16px}
  .role-pick-4{grid-template-columns:repeat(2,1fr)}
}

/* =========================================================
   班级名单核对（班主任自建名单 / 学生·家长分别打勾）
   ========================================================= */
.rstrip{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.rchip{font-size:12px;color:var(--ink-2);background:var(--bg-2);border:1px solid var(--line);
  border-radius:999px;padding:4px 11px;white-space:nowrap}
.rchip b{color:var(--ink);font-size:13px}
.rchip.ok{background:var(--ok-soft);border-color:#cfe6d7;color:#3f7a55}
.rchip.ok b{color:#2f6b46}
.rchip.bad{background:var(--danger-soft);border-color:#f0d3cf;color:#a8554b}
.rchip.bad b{color:#943e35}

.rk{display:inline-flex;align-items:center;justify-content:center;width:17px;height:17px;
  border-radius:50%;font-size:11px;font-weight:700;line-height:1;flex:none;margin-right:5px;
  vertical-align:-2px}
.rk.ok{background:var(--ok-soft);color:var(--ok);box-shadow:inset 0 0 0 1px #cfe6d7}
.rk.no{background:var(--danger-soft);color:var(--danger);box-shadow:inset 0 0 0 1px #f0d3cf}

.rs-txt{font-size:13px}
.rs-bad{color:#b4544a}
.roster-tbl td{vertical-align:middle;padding-top:9px;padding-bottom:9px}
.roster-tbl tbody tr.roster-miss{background:#fdf4f3}
.roster-tbl tbody tr.roster-miss:hover{background:#fbecea}
.roster-tbl tbody tr.roster-miss td:first-child{box-shadow:inset 3px 0 0 var(--danger)}
.roster-tbl tbody tr:not(.roster-miss) td:first-child{box-shadow:inset 3px 0 0 var(--ok)}

.roster-empty{text-align:center;padding:26px 10px 20px}
.re-ico{width:52px;height:52px;margin:0 auto 12px;border-radius:16px;display:flex;
  align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary-deep)}
.re-title{font-weight:600;color:var(--ink);margin-bottom:6px}
.re-desc{font-size:12.5px;color:var(--ink-3);line-height:1.85;max-width:460px;margin:0 auto}

.roster-extra{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:10px;
  padding:9px 12px;border-radius:10px;background:var(--warn-soft);color:#8a6a2c;
  font-size:12.5px;border:1px solid #f0e2c2}
.roster-extra b{color:#7a5c22}

@media (max-width:760px){
  .rstrip .spacer{display:none}
  .roster-tbl th,.roster-tbl td{padding-left:8px;padding-right:8px}
  #rcard .card-head{flex-wrap:wrap;row-gap:9px}
  #rcard .card-title{white-space:nowrap}
  #rcard .card-actions{margin-left:0;width:100%;flex-wrap:wrap}
  .roster-empty .row{flex-wrap:wrap}
  .roster-empty .btn{max-width:100%}
  .roster-extra .spacer{display:none}

  /* 表格转卡片：一行一个学生，两列状态上下堆叠 */
  .roster-wrap{overflow:visible}
  .roster-tbl{min-width:0;display:block}
  .roster-tbl thead{display:none}
  .roster-tbl tbody{display:block}
  .roster-tbl tr{display:block;padding:11px 13px 10px 15px;border-bottom:1px solid var(--line-2)}
  .roster-tbl td{display:block;border:0;padding:0}
  .roster-tbl td:nth-child(1){margin-bottom:8px}
  .roster-tbl td:nth-child(2){margin-bottom:7px}
  .roster-tbl td:nth-child(4){text-align:right;margin-top:8px}
  .roster-tbl tr.roster-miss td:first-child,
  .roster-tbl tr:not(.roster-miss) td:first-child{box-shadow:none}
  .roster-tbl tr.roster-miss{box-shadow:inset 3px 0 0 var(--danger)}
  .roster-tbl tr:not(.roster-miss){box-shadow:inset 3px 0 0 var(--ok)}
}