/* ==========================================================================
   晨跑 · 学生成长管理系统   全站样式
   纯 CSS，无 JavaScript 依赖。移动端优先，管理员后台为电脑端布局。
   ========================================================================== */

:root{
  --bg:#F5F6FA;
  --bg-soft:#FFF8F3;
  --card:#FFFFFF;
  --ink:#1B2333;
  --ink-2:#5A6478;
  --ink-3:#98A1B3;
  --line:#EBEEF4;
  --line-2:#F4F6FA;
  --brand:#FF7A45;
  --brand-soft:#FFF1E9;
  --ok:#12B76A;
  --ok-soft:#E7F8F0;
  --bad:#F04438;
  --bad-soft:#FEECEB;
  --warn:#F79009;
  --warn-soft:#FFF5E5;
  --info:#2E90FA;
  --info-soft:#EAF3FF;
  --violet:#7C5CFF;
  --accent:#FF7A45;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(24,32,52,.05), 0 4px 14px rgba(24,32,52,.05);
  --sh-2:0 2px 6px rgba(24,32,52,.06), 0 12px 28px rgba(24,32,52,.08);
  --sh-btn:0 4px 12px rgba(255,122,69,.28);
  --tb:64px;              /* topbar 高度 */
  --nav:62px;             /* 底部导航高度 */
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB",
              "Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--nav) + env(safe-area-inset-bottom,0px) + 12px);
}
body.role-admin{padding-bottom:12px}
a{color:inherit;text-decoration:none}
b,strong{font-weight:700}
em{font-style:normal}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:16px} /* 16px 防 iOS 缩放 */
form{margin:0}
img,svg{display:block;max-width:100%}

/* ---------------------------------------------------------------- 顶栏 */
.topbar{
  position:sticky;top:0;z-index:40;
  background:linear-gradient(135deg,var(--accent) 0%,#FF5E7A 100%);
  color:#fff;
  box-shadow:0 6px 20px rgba(255,110,80,.22);
  padding-top:env(safe-area-inset-top,0px);
}
.role-life .topbar{background:linear-gradient(135deg,#7C5CFF 0%,#5B8CFF 100%);box-shadow:0 6px 20px rgba(104,96,255,.22)}
.role-subject .topbar{background:linear-gradient(135deg,#2E9BFF 0%,#00C2C7 100%);box-shadow:0 6px 20px rgba(46,155,255,.22)}
.role-pe .topbar{background:linear-gradient(135deg,#00B894 0%,#2ED47A 100%);box-shadow:0 6px 20px rgba(0,184,148,.22)}
.role-admin .topbar{background:linear-gradient(135deg,#3D4E7C 0%,#5B6CFF 100%);box-shadow:0 6px 20px rgba(60,74,140,.22)}

.topbar-in{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;min-height:var(--tb);
  max-width:1280px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:11px;flex:1;min-width:0;color:#fff}
.brand-dot{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:rgba(255,255,255,.22);
  border:1px solid rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;font-size:20px;
  backdrop-filter:blur(4px);
}
.brand-txt{display:flex;flex-direction:column;min-width:0;line-height:1.28}
.brand-txt b{font-size:16px;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-txt i{font-style:normal;font-size:11.5px;opacity:.86;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-act{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.tb-btn{
  height:34px;padding:0 12px;border-radius:11px;
  background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;display:inline-flex;align-items:center;justify-content:center;
  white-space:nowrap;
}
.tb-btn:active{background:rgba(255,255,255,.34)}

.subbar{
  display:flex;gap:8px;overflow-x:auto;padding:0 14px 11px;
  max-width:1280px;margin:0 auto;scrollbar-width:none;
}
.subbar::-webkit-scrollbar{display:none}
.subbar a{
  flex:0 0 auto;padding:6px 13px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.24);color:#fff;
}
.subbar a.on{background:#fff;color:var(--accent);font-weight:600;border-color:#fff}

/* ---------------------------------------------------------------- 提示条 */
.flash-wrap{max-width:1280px;margin:12px auto 0;padding:0 14px;display:grid;gap:8px}
.flash{
  border-radius:var(--r-md);padding:11px 14px;font-size:14px;
  border:1px solid transparent;display:flex;align-items:center;gap:8px;
  animation:flashIn .28s ease-out;
}
@keyframes flashIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.flash-ok{background:var(--ok-soft);color:#0A7B48;border-color:#BFEBD4}
.flash-warn{background:var(--warn-soft);color:#96570A;border-color:#FCE3BB}
.flash-err{background:var(--bad-soft);color:#A52318;border-color:#FBCBC7}
.flash-info{background:var(--info-soft);color:#14549E;border-color:#C9E0FB}
.flash-ok:before{content:"✅"}.flash-warn:before{content:"⚠️"}
.flash-err:before{content:"⛔"}.flash-info:before{content:"ℹ️"}

/* ---------------------------------------------------------------- 布局 */
.shell{max-width:1280px;margin:0 auto;padding:14px}
.page{display:flex;flex-direction:column;gap:14px;min-width:0}

.grid{display:grid;gap:12px}
.grid-2{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.grid-3{display:grid;gap:12px;grid-template-columns:repeat(3,1fr)}
.grid-4{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}

/* ---------------------------------------------------------------- 卡片 */
.card{
  background:var(--card);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);border:1px solid var(--line);
  overflow:hidden;
}
.card-h{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 16px;border-bottom:1px solid var(--line-2);
}
.card-h h3{font-size:15.5px;display:flex;align-items:center;gap:7px}
.card-h h3 span.ic{font-size:17px}
.card-h .hint{font-size:12px;color:var(--ink-3)}
.card-b{padding:14px 16px}
.card-b.tight{padding:8px 10px}
.card-b.flush{padding:0}
.card-t{font-size:13px;font-weight:700;color:var(--ink-2);padding:2px 2px 0;display:flex;align-items:center;gap:6px}

.sec-h{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:2px 2px 0;
}
.sec-h h2{font-size:17px;letter-spacing:.2px}
.sec-h p{font-size:12.5px;color:var(--ink-3)}

/* ---------------------------------------------------------------- 统计卡 */
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 13px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--sh-1);
}
.stat-icon{font-size:16px;line-height:1}
.stat-val{font-size:23px;font-weight:800;letter-spacing:-.4px;line-height:1.15}
.stat-val i{font-size:12px;font-weight:600;font-style:normal;color:var(--ink-3);margin-left:2px}
.stat-label{font-size:11.5px;color:var(--ink-3);font-weight:600}

/* ---------------------------------------------------------------- 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:42px;padding:0 18px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:14.5px;font-weight:600;
  cursor:pointer;white-space:nowrap;transition:transform .08s,box-shadow .15s;
}
.btn:active{transform:scale(.975)}
.btn-p{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:var(--sh-btn)}
.btn-add{background:linear-gradient(135deg,#16C784,#0EA46B);border-color:#0EA46B;color:#fff;
         box-shadow:0 4px 12px rgba(18,183,106,.26)}
.btn-sub{background:linear-gradient(135deg,#FF6B5E,#EF4136);border-color:#EF4136;color:#fff;
         box-shadow:0 4px 12px rgba(240,68,56,.24)}
.btn-dark{background:#2B3446;border-color:#2B3446;color:#fff}
.btn-ghost{background:var(--line-2);border-color:transparent;color:var(--ink-2)}
.btn-block{width:100%}
.btn-sm{height:34px;padding:0 12px;font-size:13px;border-radius:10px}
.btn-lg{height:50px;font-size:16px;border-radius:14px}
.btn-icon{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-3);font-size:12px;cursor:pointer;flex:0 0 34px;
}
.btn-icon:active{background:var(--bad-soft);color:var(--bad)}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}
.btn-row.right{justify-content:flex-end}

/* ---------------------------------------------------------------- 点名式预设按钮 */
.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.preset{
  border:none;background:none;padding:0;margin:0;display:block;width:100%;cursor:pointer;
}
.preset > button{all:unset;display:block;width:100%;box-sizing:border-box;cursor:pointer}
.preset > span,
.preset > button > span{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  box-sizing:border-box;width:100%;
  min-height:52px;padding:10px 13px;border-radius:14px;font-size:14px;font-weight:600;
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);
  transition:transform .08s,box-shadow .15s;
}
.preset:active > span,
.preset:active > button > span{transform:scale(.97)}
.preset .pname{display:flex;align-items:center;gap:7px;text-align:left;line-height:1.3}
.preset .pdelta{
  flex:0 0 auto;font-weight:800;font-size:14px;padding:3px 9px;border-radius:8px;
}
.preset.add > span,
.preset.add > button > span{border-color:#C9EFDC;background:linear-gradient(180deg,#F6FEF9,#fff)}
.preset.add .pdelta{background:var(--ok-soft);color:#0A7B48}
.preset.sub > span,
.preset.sub > button > span{border-color:#FBD5D1;background:linear-gradient(180deg,#FFF7F6,#fff)}
.preset.sub .pdelta{background:var(--bad-soft);color:#A52318}
.preset-group-t{
  font-size:12.5px;font-weight:700;color:var(--ink-3);margin:2px 0 8px;
  display:flex;align-items:center;gap:6px;
}
.preset-group-t:before{content:"";width:3px;height:12px;border-radius:2px;background:var(--line)}
.preset-group-t.add:before{background:var(--ok)}
.preset-group-t.sub:before{background:var(--bad)}

/* ---------------------------------------------------------------- 表单 */
.form{display:grid;gap:13px}
.field{display:grid;gap:6px}
.field > label{font-size:12.5px;font-weight:700;color:var(--ink-2)}
.field .tip{font-size:11.5px;color:var(--ink-3);font-weight:500}
.input,.select,.textarea{
  width:100%;height:46px;padding:0 13px;border-radius:12px;
  border:1.5px solid var(--line);background:#FCFDFF;color:var(--ink);
  outline:none;transition:border-color .15s,box-shadow .15s;
}
.textarea{height:auto;min-height:78px;padding:11px 13px;line-height:1.5;resize:vertical}
.input:focus,.select:focus,.textarea:focus{
  border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 12%,transparent);
}
.input::placeholder,.textarea::placeholder{color:#B9C0CE}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#98A1B3 50%),
  linear-gradient(135deg,#98A1B3 50%,transparent 50%);
  background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:36px}
.form-2{display:grid;gap:13px;grid-template-columns:1fr 1fr}
.form-2 .span2{grid-column:span 2}
.inline-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.inline-form .input{flex:1;min-width:120px;width:auto}

/* 状态胶囊 */
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{position:relative;display:inline-flex}
.chip input{position:absolute;opacity:0;width:0;height:0}
.chip span{
  display:inline-flex;align-items:center;gap:5px;padding:8px 13px;border-radius:11px;
  border:1.5px solid var(--line);background:#fff;font-size:13.5px;font-weight:600;
  color:var(--ink-2);cursor:pointer;
}
.chip input:checked + span{border-color:var(--accent);background:var(--brand-soft);color:var(--accent)}
.chip.ok input:checked + span{border-color:#0EA46B;background:var(--ok-soft);color:#0A7B48}
.chip.warn input:checked + span{border-color:#E08207;background:var(--warn-soft);color:#96570A}
.chip.bad input:checked + span{border-color:#EF4136;background:var(--bad-soft);color:#A52318}
.chip.mute input:checked + span{border-color:#98A1B3;background:#F3F5F9;color:var(--ink-2)}

/* ---------------------------------------------------------------- 学生行 */
.stu-list{display:grid}
.srow{
  display:flex;align-items:center;gap:11px;padding:11px 14px;
  border-bottom:1px solid var(--line-2);transition:background .12s;
}
.srow:last-child{border-bottom:none}
.srow:active{background:#FAFBFF}
.avatar{
  flex:0 0 auto;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FFE3D1,#FFD1B8);color:#B4551F;font-weight:800;
}
.avatar.g-blue{background:linear-gradient(135deg,#DCEAFF,#C6DDFF);color:#1A5FB4}
.avatar.g-violet{background:linear-gradient(135deg,#E7E2FF,#D8D0FF);color:#4B32B8}
.avatar.g-teal{background:linear-gradient(135deg,#D6F6F0,#BEEFE6);color:#0A7B6B}
.srow-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.srow-name{font-size:15px;font-weight:700;display:flex;align-items:baseline;gap:6px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srow-name em{font-size:11.5px;color:var(--ink-3);font-weight:600}
.srow-sub{font-size:11.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srow-right{flex:0 0 auto;display:flex;align-items:center;gap:8px}
.srow.alert{background:linear-gradient(90deg,#FFF6F5,transparent 65%)}

/* ---------------------------------------------------------------- 积分 / 成长 */
.pts{
  flex:0 0 auto;font-weight:800;font-size:14px;padding:4px 10px;border-radius:9px;
  font-variant-numeric:tabular-nums;min-width:52px;text-align:center;
}
.pts.pos{background:var(--ok-soft);color:#0A7B48}
.pts.neg{background:var(--bad-soft);color:#A52318}
.pts.zero{background:#F2F4F8;color:var(--ink-3)}
.pts-big{font-size:20px;padding:6px 14px;border-radius:12px;min-width:76px}

.grow-badge{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
}
.grow-badge b{
  position:absolute;right:-6px;bottom:-2px;min-width:18px;height:18px;padding:0 4px;
  border-radius:9px;background:#2B3446;color:#fff;font-size:10.5px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;border:2px solid #fff;
}
.pet{overflow:visible}

.bar{width:100%;background:#EFF2F7;border-radius:999px;overflow:hidden}
.bar > i{display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,#FFC078,#EF8B2C);transition:width .3s}

/* 排行榜 */
.rank-row{display:flex;align-items:center;gap:11px;padding:10px 14px;border-bottom:1px solid var(--line-2)}
.rank-row:last-child{border-bottom:none}
.rank-no{
  flex:0 0 26px;height:26px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:800;background:#F2F4F8;color:var(--ink-3);
}
.rank-no.t1{background:linear-gradient(135deg,#FFD84D,#F5A623);color:#7A4B00}
.rank-no.t2{background:linear-gradient(135deg,#E3E8F0,#C7D0DE);color:#4A5568}
.rank-no.t3{background:linear-gradient(135deg,#F6D5B8,#E5B183);color:#7A4A22}
.rank-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.rank-top{display:flex;align-items:center;justify-content:space-between;gap:8px}

/* ---------------------------------------------------------------- 记录流水 */
.rec{display:flex;gap:10px;padding:11px 14px;border-bottom:1px solid var(--line-2);align-items:flex-start}
.rec:last-child{border-bottom:none}
.rec-icon{
  flex:0 0 34px;width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.rec-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.rec-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.rec-top b{font-size:14.5px;font-weight:700}
.rec-sub{font-size:11.5px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:5px}
.rec-stu{font-weight:700;color:var(--ink-2)}
.rec-scene{font-weight:600;color:var(--ink-2)}
.rec-reason{font-size:12.5px;color:var(--ink-2);background:#F8FAFD;border-radius:8px;
  padding:5px 9px;margin-top:3px}
.dot{color:#CBD2DE}
.rec-del{flex:0 0 auto}

/* ---------------------------------------------------------------- 空态 */
.empty{padding:34px 16px;text-align:center;color:var(--ink-3)}
.empty-icon{font-size:34px;margin-bottom:8px;opacity:.6}
.empty p{font-size:13.5px}

/* ---------------------------------------------------------------- 学生详情 Hero */
.hero{
  background:linear-gradient(150deg,#FFF3E9 0%,#FFFFFF 55%);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:16px;display:flex;flex-direction:column;gap:14px;position:relative;overflow:hidden;
}
.hero:before{
  content:"";position:absolute;right:-40px;top:-40px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,160,90,.16),transparent 70%);
}
.hero-top{display:flex;gap:13px;align-items:flex-start;position:relative}
.hero-name{font-size:20px;font-weight:800;letter-spacing:.2px;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.hero-name em{font-size:13px;color:var(--ink-3);font-weight:600}
.hero-meta{font-size:12.5px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:6px 12px;margin-top:4px}
.hero-meta span{display:inline-flex;align-items:center;gap:4px}
.tag{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:8px;
  font-size:11.5px;font-weight:700;background:#F2F4F8;color:var(--ink-2)}
.tag.male{background:#EAF3FF;color:#1A5FB4}
.tag.female{background:#FFF0F5;color:#B5386F}
.tag.g{background:var(--ok-soft);color:#0A7B48}
.tag.r{background:var(--bad-soft);color:#A52318}

/* 成长展示 */
.grow-panel{
  background:linear-gradient(150deg,#FFF7F0,#FFFDFB 70%);
  border:1px solid #F6E3D2;border-radius:var(--r-lg);padding:16px 16px 14px;
  display:flex;flex-direction:column;gap:12px;
}
.grow-hero{display:flex;align-items:center;gap:16px}
.grow-hero .grow-fig{
  flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  filter:drop-shadow(0 8px 14px rgba(239,139,44,.22));
}
.grow-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}
.grow-stage{font-size:16px;font-weight:800;display:flex;align-items:center;gap:7px}
.grow-stage .badge{
  font-size:11.5px;padding:3px 9px;border-radius:8px;background:#2B3446;color:#fff;font-weight:700;
}
.grow-desc{font-size:12.5px;color:var(--ink-2)}
.grow-progress{margin-top:4px;display:flex;flex-direction:column;gap:5px}
.grow-progress .lbl{display:flex;justify-content:space-between;font-size:11.5px;color:var(--ink-3);font-weight:600}

.family{
  display:flex;flex-wrap:wrap;gap:6px;align-items:flex-end;
  background:#fff;border:1px dashed #F0DCC9;border-radius:var(--r-md);padding:12px;
}
.family .fam-item{display:flex;flex-direction:column;align-items:center;gap:1px}
.family .fam-item small{font-size:10px;color:var(--ink-3)}
.family-more{font-size:12px;color:var(--ink-3);align-self:center;font-weight:700}
.family-cap{font-size:12px;color:var(--ink-3);display:flex;justify-content:space-between}

/* ---------------------------------------------------------------- 表格 */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.tb{width:100%;border-collapse:collapse;font-size:13.5px}
table.tb th{
  text-align:left;font-size:12px;font-weight:700;color:var(--ink-3);
  padding:10px 12px;background:#FAFBFE;border-bottom:1px solid var(--line);white-space:nowrap;
  position:sticky;top:0;
}
table.tb td{padding:10px 12px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.tb tr:last-child td{border-bottom:none}
table.tb tr:hover td{background:#FCFDFF}
table.tb td.num{font-variant-numeric:tabular-nums;font-weight:700}
table.tb .actions{display:flex;gap:6px;white-space:nowrap}
.tb-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden}

/* ---------------------------------------------------------------- 筛选栏 */
.filter{
  display:flex;gap:8px;flex-wrap:wrap;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:10px 12px;box-shadow:var(--sh-1);
}
.filter .input,.filter .select{height:40px;font-size:14px;width:auto;min-width:120px;flex:1}
.filter label{font-size:12.5px;font-weight:700;color:var(--ink-3)}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;align-items:center;padding:14px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 12px;border-radius:11px;display:inline-flex;
  align-items:center;justify-content:center;font-size:13.5px;font-weight:700;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.pager .cur{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------------------------------------------------------------- 底部导航 */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  background:rgba(255,255,255,.94);backdrop-filter:blur(14px) saturate(180%);
  border-top:1px solid var(--line);
  display:flex;align-items:stretch;
  padding-bottom:env(safe-area-inset-bottom,0px);
  box-shadow:0 -4px 20px rgba(24,32,52,.06);
}
.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;padding:7px 2px 6px;font-size:10.5px;font-weight:700;color:var(--ink-3);
  min-height:var(--nav);transition:color .15s;
}
.tab-ic{font-size:20px;line-height:1;filter:grayscale(.55);opacity:.75}
.tab.on{color:var(--accent)}
.tab.on .tab-ic{filter:none;opacity:1;transform:translateY(-1px)}

/* ---------------------------------------------------------------- 管理员侧栏 */
.shell-admin{display:grid;gap:16px;max-width:1400px}
@media (min-width:960px){
  .shell-admin{grid-template-columns:236px 1fr;align-items:start}
}
.admin-nav{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:12px;display:grid;gap:4px;
}
@media (min-width:960px){.admin-nav{position:sticky;top:calc(var(--tb) + 16px)}}
.admin-nav .grp{font-size:11px;font-weight:800;color:var(--ink-3);padding:10px 10px 5px;letter-spacing:.5px}
.admin-nav a{
  display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:11px;
  font-size:14px;font-weight:600;color:var(--ink-2);
}
.admin-nav a:hover{background:#F7F9FD}
.admin-nav a.on{background:var(--brand-soft);color:var(--accent);font-weight:700}
.admin-nav a .nv-ic{font-size:16px;width:20px;text-align:center}

/* ---------------------------------------------------------------- 数据条 / 图表 */
.databar{display:flex;align-items:center;gap:10px;padding:7px 0}
.databar .db-label{flex:0 0 96px;font-size:13px;font-weight:600;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis}
.databar .db-bar{flex:1;height:10px;background:#F1F4F9;border-radius:999px;overflow:hidden}
.databar .db-bar i{display:block;height:100%;border-radius:999px}
.databar .db-val{flex:0 0 auto;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  min-width:52px;text-align:right}

.daychart{display:flex;align-items:flex-end;gap:2px;height:120px;padding:8px 2px 0}
.daychart .dcol{flex:1;display:flex;flex-direction:column;justify-content:flex-end;gap:1px;
  min-width:4px;position:relative}
.daychart .dcol i{display:block;width:100%;border-radius:3px 3px 0 0;min-height:2px}
.dayaxis{display:flex;justify-content:space-between;font-size:10.5px;color:var(--ink-3);padding:4px 2px 0}

/* ---------------------------------------------------------------- 杂项 */
.foot{text-align:center;font-size:11px;color:var(--ink-3);padding:22px 14px 26px}
.note{
  background:#F8FAFD;border:1px solid var(--line);border-radius:var(--r-md);
  padding:11px 13px;font-size:12.5px;color:var(--ink-2);line-height:1.6;
}
.note b{color:var(--ink)}
.note.warn{background:var(--warn-soft);border-color:#FCE3BB;color:#8A4F09}
.note.ok{background:var(--ok-soft);border-color:#BFEBD4;color:#0A7B48}
.note.danger{background:var(--bad-soft);border-color:#FBCBC7;color:#A52318}

.login-wrap{
  min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  align-items:center;padding:30px 18px 44px;
  background:radial-gradient(120% 60% at 50% 0%,#FFE9DC 0%,#F5F6FA 55%);
}
body.role-guest{padding-bottom:0}
.login-card{
  width:100%;max-width:400px;background:#fff;border-radius:26px;
  box-shadow:var(--sh-2);padding:26px 22px 22px;border:1px solid #F1EDE9;
}
.login-logo{
  width:70px;height:70px;border-radius:22px;margin:0 auto 14px;
  background:linear-gradient(135deg,#FF9A5B,#FF5E7A);display:flex;align-items:center;
  justify-content:center;font-size:34px;box-shadow:0 10px 24px rgba(255,110,80,.32);
}
.login-card h1{font-size:21px;text-align:center;letter-spacing:.4px}
.login-card .sub{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:5px}
.login-card .form{margin-top:20px}
.login-tips{
  margin-top:16px;font-size:11.5px;color:var(--ink-3);text-align:center;line-height:1.8;
  background:#FAFBFE;border-radius:12px;padding:10px;
}
.role-pills{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:14px}
.role-pills span{
  font-size:11px;padding:4px 10px;border-radius:999px;background:#F3F5F9;color:var(--ink-2);font-weight:700;
}
@media (max-width:360px){
  .preset-grid{grid-template-columns:1fr}
  .form-2{grid-template-columns:1fr}
  .form-2 .span2{grid-column:span 1}
}

/* ---------------------------------------------------------------- 电脑端
   教师角色（班主任/生活/任课/体育）在电脑上同样可用：
   底部导航变为顶栏下方的吸顶横向导航，内容区自动排成两栏。 */
@media (min-width:820px){
  .page{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
  .page > .full{grid-column:1/-1}
  .grid-4{grid-template-columns:repeat(4,1fr)}
  .stmt-lg .stat-val{font-size:28px}

  body:not(.role-admin):not(.role-guest){padding-bottom:30px}

  .tabbar{
    position:sticky;top:var(--tb);bottom:auto;z-index:45;
    border-top:none;border-bottom:1px solid var(--line);
    justify-content:center;gap:6px;padding:0 16px;
    box-shadow:0 4px 18px rgba(24,32,52,.05);
  }
  body.has-subbar .tabbar{top:calc(var(--tb) + 44px)}
  .tab{
    flex:0 0 auto;flex-direction:row;align-items:center;gap:7px;
    padding:0 20px;min-height:var(--nav);
    font-size:13.5px;position:relative;border-radius:0;
  }
  .tab-ic{font-size:16px}
  .tab.on::after{
    content:"";position:absolute;left:18px;right:18px;bottom:0;height:3px;
    border-radius:3px 3px 0 0;background:var(--accent);
  }
}
@media (min-width:820px) and (max-width:959px){
  .shell-admin{grid-template-columns:1fr}
}

/* 打印 */
@media print{
  .topbar,.tabbar,.btn,.filter,.foot{display:none!important}
  body{background:#fff}
  .card{box-shadow:none;border-color:#ddd;break-inside:avoid}
}

/* ============ 教室动物园 ============ */
.pet-emoji{
  display:inline-flex;align-items:center;justify-content:center;border-radius:50%;
  background:linear-gradient(180deg,#FFF6EE,#FFE7D4);line-height:1;flex:none;
  box-shadow:inset 0 -2px 6px rgba(255,122,69,.14), 0 1px 2px rgba(24,32,52,.06);
}
.room{
  background:linear-gradient(180deg,#FEFCF8,#F6F3EC);
  border:1.5px solid var(--line);border-radius:var(--r-lg);
  padding:14px;box-shadow:var(--sh-1);
}
.podium{
  background:linear-gradient(90deg,#FFE3C7,#FFD0A4);color:#8A5A2B;font-weight:800;
  text-align:center;border-radius:10px;padding:7px 0;font-size:13px;
  letter-spacing:10px;text-indent:10px;margin-bottom:12px;
}
.room-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}
.room-row:last-child{margin-bottom:0}
.aisle{display:none}
.desk{
  background:var(--card);border:1.5px solid var(--line);border-radius:var(--r-md);
  padding:10px 8px 9px;display:flex;flex-direction:column;align-items:center;
  gap:3px;box-shadow:var(--sh-1);min-width:0;
}
.desk-pet{margin-bottom:2px}
.desk-name{
  font-weight:800;font-size:13px;color:var(--ink);max-width:100%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.desk-stu{font-size:12px;color:var(--ink-2);font-weight:700}
.desk-stu small{color:var(--ink-3);font-weight:600}
.desk-meta{font-size:11px;color:var(--ink-3)}
.desk-form{width:100%;display:flex;flex-direction:column;gap:5px;margin-top:5px}
.desk-form .select,.desk-form .input{font-size:12px;padding:6px 8px;min-height:0}
.desk-actions{display:flex;gap:6px}
.desk-actions .input{flex:1;min-width:0}
.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.room-grid .desk{height:100%}
@media (min-width:600px){
  .room-row{grid-template-columns:1fr 1fr 18px 1fr 1fr}
  .aisle{
    display:block;border-radius:6px;
    background:repeating-linear-gradient(45deg,#EDE7DB 0 6px,#F7F3EB 6px 12px);
  }
}