/* R193 学习数据可视化分析 style.css */
:root {
  --primary: #1A5276; --secondary: #3498DB; --accent: #2980B9;
  --bg: #F0F5FA; --card: #FFFFFF; --text: #1A2A3A; --text-secondary: #5A7A9A;
  --border: #D0E0F0; --success: #27AE60; --warning: #F39C12; --error: #E74C3C;
  --font-scale: 1; --touch-min: 44px;
  --contact-footer-h: 92px; --bottom-nav-h: 52px;
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --bottom-chrome-h: calc(var(--contact-footer-h) + var(--bottom-nav-h));
  --zw-fab-size: 56px; --float-gap: 12px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:calc(16px * var(--font-scale));-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.5;max-width:480px;margin:0 auto}
body.has-contact-footer{padding-bottom:calc(var(--bottom-chrome-h) + 16px + var(--safe-area-bottom))}
body.share-page{padding-bottom:calc(var(--contact-footer-h) + 16px + var(--safe-area-bottom))}
button,input,select,textarea{font:inherit;border:none;background:none;cursor:pointer}
a{color:inherit;text-decoration:none}
.hidden{display:none!important}
.muted{color:var(--text-secondary);font-size:13px}

.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--card);box-shadow:0 1px 3px rgba(0,0,0,.06);position:sticky;top:0;z-index:70}
.nav-logo{font-weight:700;font-size:15px;flex:1;text-align:center}
.nav-btn{font-size:18px;padding:8px;min-width:var(--touch-min);min-height:var(--touch-min);display:inline-flex;align-items:center;justify-content:center}
.view-container{padding:12px;min-height:45vh}
.page-title{font-size:18px;margin-bottom:12px;font-weight:800}
.section-title{font-size:15px;font-weight:700;margin:12px 0 8px}
.welcome-line{font-size:13px;color:var(--text-secondary);text-align:center;margin-bottom:10px}

.bottom-nav{position:fixed;left:0;right:0;bottom:calc(var(--contact-footer-h) + var(--safe-area-bottom));max-width:480px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);background:var(--card);border-top:1px solid var(--border);z-index:80;min-height:var(--bottom-nav-h)}
.bottom-tab{padding:6px 4px;font-size:10px;color:var(--text-secondary);min-height:var(--touch-min)}
.bottom-tab.active{color:var(--primary);font-weight:700}
.bottom-tab span{display:block;margin-top:2px;font-size:11px}

.role-bar{display:flex;gap:6px;margin-bottom:12px;overflow-x:auto}
.role-btn{flex:1;min-width:90px;padding:8px 10px;border-radius:20px;font-size:12px;background:var(--card);border:1px solid var(--border);white-space:nowrap}
.role-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.kpi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.kpi-card{background:var(--card);border-radius:12px;padding:10px 6px;text-align:center;border:1px solid var(--border);position:relative}
.kpi-card.fade-in{animation:fadeUp .35s ease backwards}
.kpi-val{display:block;font-size:18px;font-weight:800;color:var(--primary)}
.kpi-label{font-size:10px;color:var(--text-secondary);margin-top:4px}
.kpi-delta{position:absolute;top:4px;right:6px;font-size:10px;font-weight:700}
.kpi-delta.up{color:var(--success)}.kpi-delta.down{color:var(--error)}

.summary-card p{font-size:14px;line-height:1.6}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.quick-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 6px;background:var(--card);border-radius:12px;border:1px solid var(--border);font-size:11px;min-height:var(--touch-min)}
.quick-btn span{font-size:10px}

.tab-row{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}
.tab-row.scroll{overflow-x:auto;flex-wrap:nowrap}
.tab-btn{padding:8px 14px;border-radius:20px;font-size:12px;background:var(--card);border:1px solid var(--border);color:var(--text-secondary);white-space:nowrap;min-height:36px}
.tab-btn.sm{padding:6px 10px;font-size:11px}
.tab-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.card{background:var(--card);border-radius:14px;padding:16px;margin-bottom:12px;border:1px solid var(--border)}
.card-title{font-size:14px;font-weight:700;margin-bottom:8px}
.chart-wrap{margin:8px 0;overflow-x:auto}
.chart-svg{width:100%;max-width:320px;display:block;margin:0 auto}
.stat-fallback,.disclaimer{font-size:12px;color:var(--text-secondary);padding:8px 0}
.disclaimer{font-style:italic}

.matrix-scroll{overflow-x:auto}
.matrix-table{border-collapse:collapse;font-size:11px;width:100%}
.matrix-table th,.matrix-table td{padding:6px 4px;text-align:center;border:1px solid var(--border)}
.kp-name{text-align:left!important;font-weight:600;white-space:nowrap}
.matrix-cell{cursor:pointer;min-width:36px;border-radius:4px;font-weight:600}
.matrix-list{display:flex;flex-direction:column;gap:8px}
.matrix-row{display:flex;justify-content:space-between;align-items:center;padding:8px;background:var(--card);border-radius:8px;border:1px solid var(--border)}
.level-block{padding:4px 10px;border-radius:6px;font-weight:700;font-size:12px;color:#fff}

.radar-legend{display:flex;gap:16px;justify-content:center;font-size:11px;color:var(--text-secondary);margin-top:8px}
.weak-axis{fill:var(--error)!important;font-weight:700}

.leaderboard-list{background:var(--card);border-radius:14px;border:1px solid var(--border);overflow:hidden}
.rank-row{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--border);font-size:13px}
.rank-row:last-child{border-bottom:none}
.rank-row.top1{background:linear-gradient(90deg,rgba(255,215,0,.12),transparent)}
.rank-row.top2{background:linear-gradient(90deg,rgba(192,192,192,.1),transparent)}
.rank-row.top3{background:linear-gradient(90deg,rgba(205,127,50,.1),transparent)}
.rank-row.sticky-row{font-weight:700;border-left:3px solid var(--primary)}
.rank-medal{min-width:28px;font-weight:800}
.rank-name{flex:1}.rank-pts{font-weight:800;color:var(--primary)}
.up{color:var(--success);font-weight:700}.down{color:var(--error);font-weight:700}.same{color:var(--text-secondary)}

.cal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-weight:700}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;text-align:center;font-size:12px}
.cal-cell{padding:8px 4px;border-radius:6px;min-height:32px;display:flex;align-items:center;justify-content:center}
.cal-cell.weekday{color:var(--text-secondary);font-size:10px}
.cal-cell.empty{visibility:hidden}
.cal-cell.gh.l0{background:#EBEDF0}.cal-cell.gh.l1{background:#9BE9A8}.cal-cell.gh.l2{background:#40C463;color:#fff}
.cal-cell.gh.l3{background:#30A14E;color:#fff}.cal-cell.gh.l4{background:#216E39;color:#fff}
.cal-cell.today{border:2px solid var(--primary);font-weight:700}

.center-text{text-align:center;margin:8px 0}
.tip-card{background:color-mix(in srgb,var(--primary) 8%,white);padding:12px;border-radius:10px;font-size:13px;border-left:3px solid var(--primary)}

.ai-card{display:flex;gap:10px;padding:12px;margin-bottom:8px;background:var(--card);border-radius:10px;border-left:4px solid var(--ai-color,var(--primary))}
.ai-card p{font-size:13px;color:var(--text-secondary);margin-top:4px}
.ai-icon{font-size:22px}

.compare-head{display:flex;justify-content:space-around;font-weight:700;margin-bottom:10px;font-size:13px}
.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 0.8fr;gap:4px;padding:8px 0;border-bottom:1px solid var(--border);font-size:12px;text-align:center}
.summary-diff{text-align:center;font-weight:700;margin-top:10px}

.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.badge-item{background:var(--bg);border:2px solid var(--border);border-radius:12px;padding:10px 6px;text-align:center;font-size:10px;min-height:80px}
.badge-item.unlocked{border-color:var(--primary)}
.badge-item.locked{opacity:.45;filter:grayscale(1)}
.badge-icon{font-size:26px;display:block}

.menu-list{margin-bottom:12px}
.menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:14px 16px;background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:8px;text-align:left;font-size:14px;min-height:var(--touch-min)}
.theme-row{display:flex;flex-wrap:wrap;gap:8px}
.theme-btn,.font-btn{padding:8px 12px;border-radius:10px;border:2px solid var(--border);background:var(--card);font-size:11px;min-height:var(--touch-min)}
.theme-btn.active,.font-btn.active{border-color:var(--primary);background:color-mix(in srgb,var(--primary) 10%,white)}

.poster-img{width:100%;border-radius:12px;border:1px solid var(--border)}
.toolbar{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.toolbar .form-input{flex:1;min-width:120px}

.btn{border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;min-height:var(--touch-min)}
.btn-primary{background:var(--primary);color:#fff}
.btn-outline{background:var(--card);color:var(--text);border:2px solid var(--border)}
.btn-block{display:block;width:100%;margin-top:10px;text-align:center}
.form-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--text);margin-bottom:10px}

.modal-container{position:fixed;inset:0;z-index:900}
.modal-container.hidden{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{background:var(--card);border-radius:16px;padding:20px;max-width:340px;width:100%;max-height:85vh;overflow-y:auto}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}

.toast-container{position:fixed;left:50%;transform:translateX(-50%);z-index:9999;pointer-events:none}
.toast-item{background:rgba(26,82,118,.92);color:#fff;padding:10px 18px;border-radius:20px;margin-top:6px;opacity:0;transition:opacity .3s;font-size:13px}
.toast-item.show{opacity:1}
.toast-item.toast-error{background:rgba(185,28,28,.9)}

.contact-footer{position:fixed;left:0;right:0;bottom:0;background:#1a1a1a;z-index:850;padding:.55rem .75rem calc(.55rem + var(--safe-area-bottom));min-height:var(--contact-footer-h)}
.contact-footer__btns{display:grid;grid-template-columns:repeat(3,minmax(0,88px));justify-content:center;gap:.4rem;max-width:320px;margin:0 auto}
.contact-footer__cta,.contact-footer__btn{display:flex;align-items:center;justify-content:center;padding:.48rem .2rem;border-radius:6px;font-size:.72rem;min-height:32px;text-align:center}
.contact-footer__cta{background:#c41e1e!important;color:#fff!important;font-weight:700}
.contact-footer__btn{border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent;font-family:inherit}
.contact-footer__brand{text-align:center;font-size:.62rem;color:rgba(255,255,255,.5);margin:.4rem 0 0}

body[data-brand="learning-analytics"] .zw-root .zw-fab,
body[data-brand="learning-analytics"] .em-entry-btn{bottom:calc(var(--bottom-chrome-h) + var(--float-gap) + var(--safe-area-bottom))!important}
body[data-brand="learning-analytics"] .toast-container{bottom:calc(var(--bottom-chrome-h) + var(--zw-fab-size) + var(--float-gap) * 2 + var(--safe-area-bottom));top:auto}

.share-main{padding:24px 16px;max-width:480px;margin:0 auto}
.share-card{background:var(--card);border-radius:20px;padding:28px 20px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.08);margin-bottom:16px}
.share-icon{font-size:56px;margin-bottom:8px}
.share-slogan{color:var(--primary);font-weight:600;margin:12px 0;font-size:14px}
.share-list{text-align:left;margin:16px 0;font-size:14px}
.share-rank{color:var(--primary);font-weight:700;width:1.5em;display:inline-block}
#share-qr{text-align:center;margin:16px 0}
.share-open-app{display:block;text-align:center}

@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}