/* 江苏职教高考学测刷题系统 v5.4.3
   UI 2.0 — 首页 + 全局导航迁移
   Design direction: Study Instrument / 学习仪器感
   This layer intentionally leaves legacy feature logic untouched. */

:root{
  --ui2-page:#f6f8fb;
  --ui2-surface:#ffffff;
  --ui2-surface-2:#f9fafb;
  --ui2-surface-muted:#f1f4f8;
  --ui2-text:#172033;
  --ui2-text-2:#4a5568;
  --ui2-text-3:#7a8495;
  --ui2-border:#dde3ea;
  --ui2-border-strong:#cbd3dd;
  --ui2-brand:#1f63d7;
  --ui2-brand-strong:#174ea8;
  --ui2-brand-soft:#eef4ff;
  --ui2-success:#23845c;
  --ui2-danger:#c2413b;
  --ui2-warning:#a86611;
}

body.ui2-shell-v543:not(.ui2-practice-active){
  color:var(--ui2-text);
  background:var(--ui2-page)!important;
}
body.ui2-shell-v543:not(.ui2-practice-active):before{display:none!important}
body.ui2-shell-v543:not(.ui2-practice-active) .app-shell{
  width:min(1240px,calc(100% - 32px));
  padding:0 0 44px;
}
body.ui2-shell-v543:not(.ui2-practice-active) .topbar{
  position:sticky!important;
  top:0!important;
  z-index:60!important;
  display:flex!important;
  flex-direction:row!important;
  align-items:center!important;
  justify-content:space-between!important;
  gap:18px!important;
  min-height:66px;
  padding:10px 0!important;
  background:rgba(246,248,251,.97)!important;
  border-bottom:1px solid var(--ui2-border)!important;
  backdrop-filter:none!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .brand{
  min-width:0;
  gap:10px;
}
body.ui2-shell-v543:not(.ui2-practice-active) .brand-logo{
  width:38px!important;height:38px!important;
  flex:0 0 38px;
  border-radius:9px!important;
  color:#fff!important;
  background:var(--ui2-brand)!important;
  box-shadow:none!important;
  font-size:19px!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .brand-logo:after{display:none!important}
body.ui2-shell-v543:not(.ui2-practice-active) .brand h1{
  margin:0;
  color:var(--ui2-text);
  font-size:17px!important;
  line-height:1.2;
  letter-spacing:-.02em!important;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
body.ui2-shell-v543:not(.ui2-practice-active) .brand p{
  margin:3px 0 0;
  color:var(--ui2-text-3)!important;
  font-size:11px!important;
  white-space:nowrap;
}

/* ---------- Global navigation ---------- */
body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs{
  width:auto!important;
  max-width:100%;
  display:flex!important;
  align-items:center!important;
  justify-content:flex-end!important;
  gap:2px!important;
  flex-wrap:nowrap!important;
  overflow:visible!important;
  padding:3px!important;
  background:var(--ui2-surface)!important;
  border:1px solid var(--ui2-border)!important;
  border-radius:10px!important;
  box-shadow:none!important;
  backdrop-filter:none!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > button{
  min-height:34px!important;
  margin:0!important;
  padding:7px 10px!important;
  border:0!important;
  border-radius:7px!important;
  color:var(--ui2-text-2)!important;
  background:transparent!important;
  box-shadow:none!important;
  font-size:13px!important;
  font-weight:680!important;
  white-space:nowrap;
  transform:none!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > button:hover{
  color:var(--ui2-text)!important;
  background:var(--ui2-surface-muted)!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > .nav-btn.active{
  color:var(--ui2-brand-strong)!important;
  background:var(--ui2-brand-soft)!important;
}
body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > .ui2-nav-secondary{display:none!important}
body.ui2-shell-v543:not(.ui2-practice-active) .ui2-more-btn{
  display:inline-flex!important;
  align-items:center;
  gap:5px;
}
body.ui2-shell-v543:not(.ui2-practice-active) .ui2-more-btn[aria-expanded="true"]{
  color:var(--ui2-brand-strong)!important;
  background:var(--ui2-brand-soft)!important;
}

/* More menu: desktop popover, mobile bottom sheet. */
.ui2-more-backdrop{
  position:fixed;
  inset:0;
  z-index:89;
  display:none;
  background:transparent;
}
.ui2-more-backdrop.open{display:block}
.ui2-more-menu{
  position:fixed;
  z-index:90;
  display:none;
  width:260px;
  padding:8px;
  color:var(--ui2-text);
  background:var(--ui2-surface);
  border:1px solid var(--ui2-border);
  border-radius:12px;
  box-shadow:0 16px 42px rgba(23,32,51,.14);
}
.ui2-more-menu.open{display:block}
.ui2-more-menu-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:8px 8px 6px;
}
.ui2-more-menu-head b{font-size:13px}
.ui2-more-menu-head span{color:var(--ui2-text-3);font-size:11px}
.ui2-more-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px}
.ui2-more-item{
  min-height:42px;
  padding:9px 10px;
  border:0;
  border-radius:8px;
  text-align:left;
  color:var(--ui2-text-2);
  background:transparent;
  font-size:13px;
  font-weight:680;
}
.ui2-more-item:hover{color:var(--ui2-text);background:var(--ui2-surface-muted)}
.ui2-more-item.wide{grid-column:1 / -1}
.ui2-more-item .ui2-account-state{display:block;margin-top:2px;color:var(--ui2-text-3);font-size:11px;font-weight:600}

body.ui2-shell-v543:not(.ui2-practice-active) .main-panel{
  min-height:72vh;
  margin-top:0!important;
  padding:24px 0 44px!important;
  background:transparent!important;
  border:0!important;
  border-radius:0!important;
  box-shadow:none!important;
  backdrop-filter:none!important;
}

/* ---------- Home 2.0 ---------- */
body.ui2-home-active .main-panel{padding-top:28px!important}
.ui2-home-v543{display:grid;gap:30px}
.ui2-home-intro{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(360px,.7fr);
  gap:28px;
  align-items:end;
  padding-bottom:26px;
  border-bottom:1px solid var(--ui2-border);
}
.ui2-home-kicker{
  margin-bottom:8px;
  color:var(--ui2-brand-strong);
  font-size:12px;
  font-weight:760;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.ui2-home-intro h2{
  max-width:680px;
  margin:0;
  color:var(--ui2-text);
  font-size:clamp(30px,4.1vw,48px);
  line-height:1.12;
  letter-spacing:-.045em;
}
.ui2-home-intro p{
  max-width:680px;
  margin:12px 0 0;
  color:var(--ui2-text-2);
  font-size:15px;
  line-height:1.75;
}
.ui2-home-primary-actions{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
}
.ui2-home-action{
  min-height:64px;
  padding:14px 15px;
  border:1px solid var(--ui2-border);
  border-radius:10px;
  text-align:left;
  color:var(--ui2-text);
  background:var(--ui2-surface);
  box-shadow:none;
}
.ui2-home-action:hover{border-color:#a9c5f4;background:#fbfdff}
.ui2-home-action.primary{color:#fff;background:var(--ui2-brand);border-color:var(--ui2-brand)}
.ui2-home-action.primary:hover{background:var(--ui2-brand-strong);border-color:var(--ui2-brand-strong)}
.ui2-home-action b{display:block;font-size:15px}
.ui2-home-action span{display:block;margin-top:4px;color:var(--ui2-text-3);font-size:11px;font-weight:600;line-height:1.4}
.ui2-home-action.primary span{color:rgba(255,255,255,.78)}

.ui2-home-section{display:grid;gap:12px}
.ui2-home-section-head{display:flex;align-items:end;justify-content:space-between;gap:16px}
.ui2-home-section-head h3{margin:0;color:var(--ui2-text);font-size:18px;letter-spacing:-.02em}
.ui2-home-section-head p{margin:4px 0 0;color:var(--ui2-text-3);font-size:12px;line-height:1.6}
.ui2-home-section-head .ui2-text-action{
  min-height:34px;
  padding:6px 9px;
  color:var(--ui2-brand-strong);
  background:transparent;
  border-radius:7px;
  font-size:12px;
  font-weight:700;
}
.ui2-home-section-head .ui2-text-action:hover{background:var(--ui2-brand-soft)}

.ui2-home-metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--ui2-border);
  border-bottom:1px solid var(--ui2-border);
}
.ui2-home-metric{padding:15px 14px;border-right:1px solid var(--ui2-border)}
.ui2-home-metric:last-child{border-right:0}
.ui2-home-metric b{display:block;color:var(--ui2-text);font-size:22px;font-variant-numeric:tabular-nums;letter-spacing:-.035em}
.ui2-home-metric span{display:block;margin-top:3px;color:var(--ui2-text-3);font-size:11px;font-weight:650}

.ui2-subject-list{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  border:1px solid var(--ui2-border);
  border-radius:12px;
  overflow:hidden;
  background:var(--ui2-surface);
}
.ui2-subject-row{
  min-width:0;
  min-height:122px;
  padding:16px;
  border:0;
  border-right:1px solid var(--ui2-border);
  text-align:left;
  color:var(--ui2-text);
  background:var(--ui2-surface);
}
.ui2-subject-row:last-child{border-right:0}
.ui2-subject-row:hover{background:#fbfdff}
.ui2-subject-row b{display:block;font-size:17px}
.ui2-subject-row .ui2-subject-count{display:block;margin-top:17px;font-size:13px;color:var(--ui2-text-2);font-weight:680;line-height:1.65}
.ui2-subject-row .ui2-subject-go{display:block;margin-top:10px;color:var(--ui2-brand-strong);font-size:12px;font-weight:700}

.ui2-home-lower{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(300px,.46fr);
  gap:24px;
}
.ui2-quick-list{border-top:1px solid var(--ui2-border)}
.ui2-quick-row{
  width:100%;
  min-height:54px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:11px 2px;
  border:0;
  border-bottom:1px solid var(--ui2-border);
  text-align:left;
  color:var(--ui2-text);
  background:transparent;
}
.ui2-quick-row:hover{color:var(--ui2-brand-strong)}
.ui2-quick-row b{font-size:14px}
.ui2-quick-row span{color:var(--ui2-text-3);font-size:11px;font-weight:600}
.ui2-quick-row em{font-style:normal;color:var(--ui2-text-3);font-size:18px;font-weight:400}

.ui2-release-box{
  padding:17px 18px;
  border:1px solid var(--ui2-border);
  border-radius:12px;
  background:var(--ui2-surface-2);
}
.ui2-release-box .ui2-release-version{color:var(--ui2-brand-strong);font-size:12px;font-weight:760}
.ui2-release-box h4{margin:7px 0 8px;font-size:16px;color:var(--ui2-text)}
.ui2-release-box p{margin:0;color:var(--ui2-text-2);font-size:12px;line-height:1.7}
.ui2-release-box button{margin-top:14px;padding:7px 0;color:var(--ui2-brand-strong);background:transparent;font-size:12px;font-weight:720}

/* ---------- Tablet / phone ---------- */
@media(max-width:900px){
  body.ui2-shell-v543:not(.ui2-practice-active) .app-shell{width:min(100% - 24px,1240px)}
  body.ui2-shell-v543:not(.ui2-practice-active) .topbar{position:sticky!important;flex-direction:row!important;align-items:center!important;padding:9px 0!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .brand{max-width:50%}
  .ui2-home-intro{grid-template-columns:1fr;align-items:start}
  .ui2-home-primary-actions{max-width:620px}
  .ui2-home-lower{grid-template-columns:1fr}
  .ui2-subject-list{grid-template-columns:repeat(3,minmax(0,1fr))}
  .ui2-subject-row{border-bottom:1px solid var(--ui2-border)}
  .ui2-subject-row:nth-child(3n){border-right:0}
}

@media(max-width:620px){
  body.ui2-shell-v543:not(.ui2-practice-active){padding-bottom:78px!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .app-shell{width:100%!important;padding:0 14px 28px!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .topbar{
    min-height:58px!important;
    padding:8px 0!important;
    border-bottom:0!important;
  }
  body.ui2-shell-v543:not(.ui2-practice-active) .brand{max-width:100%;gap:9px}
  body.ui2-shell-v543:not(.ui2-practice-active) .brand-logo{width:34px!important;height:34px!important;flex-basis:34px;font-size:17px!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .brand h1{font-size:15px!important;max-width:calc(100vw - 82px)}
  body.ui2-shell-v543:not(.ui2-practice-active) .brand p{font-size:10px!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs{
    position:fixed!important;
    left:8px!important;right:8px!important;bottom:8px!important;
    z-index:80!important;
    width:auto!important;
    min-height:58px;
    display:grid!important;
    grid-template-columns:repeat(4,minmax(0,1fr))!important;
    justify-content:stretch!important;
    padding:5px!important;
    border-radius:13px!important;
    background:rgba(255,255,255,.97)!important;
    box-shadow:0 10px 32px rgba(23,32,51,.14)!important;
  }
  body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > button{
    width:100%!important;
    min-width:0!important;
    min-height:46px!important;
    display:flex!important;
    align-items:center!important;
    justify-content:center!important;
    padding:5px 2px!important;
    font-size:11px!important;
    line-height:1.2!important;
  }
  body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > .ui2-nav-secondary{display:none!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .nav-tabs > .ui2-mobile-hide{display:none!important}
  body.ui2-shell-v543:not(.ui2-practice-active) .main-panel{padding:18px 0 24px!important;min-height:calc(100vh - 138px)!important}
  body.ui2-home-active .main-panel{padding-top:14px!important}
  .ui2-home-v543{gap:25px}
  .ui2-home-intro{gap:20px;padding-bottom:22px}
  .ui2-home-kicker{margin-bottom:6px;font-size:10px}
  .ui2-home-intro h2{font-size:30px;line-height:1.16}
  .ui2-home-intro p{margin-top:9px;font-size:13px;line-height:1.7}
  .ui2-home-primary-actions{grid-template-columns:1fr 1fr;gap:7px}
  .ui2-home-action{min-height:58px;padding:11px 12px;border-radius:9px}
  .ui2-home-action b{font-size:14px}
  .ui2-home-action span{font-size:10px}
  .ui2-home-section-head{align-items:flex-start}
  .ui2-home-section-head h3{font-size:17px}
  .ui2-home-section-head p{font-size:11px}
  .ui2-home-metrics{grid-template-columns:repeat(2,1fr);border:1px solid var(--ui2-border);border-radius:10px;overflow:hidden}
  .ui2-home-metric{padding:12px;border-right:1px solid var(--ui2-border);border-bottom:1px solid var(--ui2-border)}
  .ui2-home-metric:nth-child(2n){border-right:0}
  .ui2-home-metric:nth-last-child(-n+2){border-bottom:0}
  .ui2-home-metric b{font-size:19px}
  .ui2-subject-list{grid-template-columns:1fr;border-radius:10px}
  .ui2-subject-row{min-height:auto;display:grid;grid-template-columns:90px 1fr auto;align-items:center;gap:10px;padding:13px 12px;border-right:0!important;border-bottom:1px solid var(--ui2-border)}
  .ui2-subject-row:last-child{border-bottom:0}
  .ui2-subject-row b{font-size:15px}
  .ui2-subject-row .ui2-subject-count{margin:0;font-size:11px}
  .ui2-subject-row .ui2-subject-go{margin:0;font-size:11px}
  .ui2-home-lower{gap:20px}
  .ui2-release-box{padding:15px}

  .ui2-more-backdrop{background:rgba(23,32,51,.22)}
  .ui2-more-menu{
    left:8px!important;right:8px!important;bottom:76px!important;top:auto!important;
    width:auto!important;
    max-height:min(70vh,520px);
    overflow:auto;
    padding:9px;
    border-radius:14px;
    box-shadow:0 18px 48px rgba(23,32,51,.2);
  }
  .ui2-more-grid{grid-template-columns:1fr 1fr}
  .ui2-more-item{min-height:46px;padding:10px}
}

@media(max-width:380px){
  .ui2-home-primary-actions{grid-template-columns:1fr}
  .ui2-home-metrics{grid-template-columns:1fr 1fr}
  .ui2-subject-row{grid-template-columns:78px 1fr auto}
}