:root{
  --blue:#00579c;--blue-dim:#004a85;--blue-deep:#003a6e;
  --blue-glow:rgba(0,87,156,.22);--blue-faint:rgba(0,87,156,.07);--blue-mid:rgba(0,87,156,.14);
  --gold:#DA9F10;--gold-light:#d4a843;--gold-faint:rgba(184,134,11,.07);--gold-mid:rgba(184,134,11,.16);
  --red:#DD2825;--red-light:#e53935;--red-faint:rgba(183,28,28,.07);--red-mid:rgba(183,28,28,.16);
  --teal:#00897b;--teal-dim:rgba(0,137,123,.08);
  --green:#2e7d32;
  --bg:#fff;--bg-alt:#f8fafc;--bg-warm:#f1f3fb;
  --border:rgba(148,163,184,.28);--border-hi:rgba(0,87,156,.20);
  --t1:#0f172a;--t2:#475569;--t3:#94a3b8;
  --font:'Inter',system-ui,sans-serif;--mono:'JetBrains Mono',monospace;
  --radius:16px;
}
html{scroll-behavior:smooth;scroll-padding-top:100px;}
.training-cert-page{font-family:var(--font);background:var(--bg);color:var(--t1);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
.training-cert-page a{text-decoration:none;}

/* Academy banner 右侧封面：相对全局默认缩小 1/4 */
#academy-training-hero.industry-hero .hero-right img{
  width: 67.5%;
  max-width: 378px;
}
.training-cert-page .fade{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1);}
.training-cert-page .fade.in{opacity:1;transform:none;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.4)}}
.sec-hd{text-align:center;margin-bottom:var(--space-module)}
.sec-hd-badge{margin-bottom:var(--space-card)}
.sec-hd .h2{margin:0 0 var(--space-card)}
.sec-sub{font-size:var(--font-size-body);color:var(--color-text-secondary);line-height:1.7;max-width:720px;margin:0 auto}

/* 页内统计条 */
.sec-stats{
  padding:var(--space-module) 0;
  background:var(--bg);
}
.training-cert-page .training-hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  max-width:960px;
  margin:0 auto;
  text-align:center;
}
.training-cert-page .training-hero-stat{
  position:relative;
  padding:var(--space-card) var(--space-gutter);
  min-width:0;
}
.training-cert-page .training-hero-stat + .training-hero-stat::before{
  content:'';
  position:absolute;
  left:0;
  top:22%;
  bottom:22%;
  width:1px;
  background:var(--color-border);
}
.training-cert-page .training-hero-stat-num{
  font-family:var(--font-sans,var(--font));
  font-size:var(--font-size-5xl,28px);
  font-weight:800;
  letter-spacing:-.03em;
  line-height:1.1;
  color:var(--color-title);
}
.training-cert-page .training-hero-stat-label{
  margin-top:8px;
  font-family:var(--font-sans,var(--font));
  font-size:var(--font-size-caption,12px);
  font-weight:600;
  letter-spacing:.02em;
  color:var(--color-text-secondary);
}

/* ══ TRACKS：左竖 tab + 右卡片 ══ */
.sec-courses{padding:0 0 var(--space-section);background:var(--bg)}
.track-shell{
  display:grid;
  grid-template-columns:27% minmax(0,1fr);
  gap:var(--space-card);
  align-items:stretch;
  box-sizing:border-box;
}

.tab-bar--vert{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:var(--space-card);
  border-radius: var(--radius-md);
  background: linear-gradient(358deg, #d2e7ff4d 0%, #d2e7ff1a 70%);
  border: 1px solid #E5E8EF;
}
.tab-bar--vert .tab{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:4px;
  min-width:0;
  width:100%;
  padding:14px 10px 18px;
  border:none;
  border-radius:0;
  background:transparent;
  box-shadow:none;
  cursor:pointer;
  position:relative;
  transition:opacity .2s ease;
}
.tab-bar--vert .tab:hover{opacity:.85}
.tab-bar--vert .tab-code{
  font-size:var(--font-size-4xl);
  font-weight:700;
  font-family:var(--font-sans,var(--font));
  letter-spacing:.01em;
  color:var(--color-title);
  line-height:1.2;
}
.tab-bar--vert .tab-tier{
  font-size:var(--font-size-md);
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  line-height:1.2;
  color:var(--color-title);
}
/* Beginner 深色字 + 蓝短条；Intermediate 金；Advanced 红 */
.tab-bar--vert .tab--blue .tab-code,
.tab-bar--vert .tab--blue .tab-tier{color:var(--color-title)}
.tab-bar--vert .tab--gold .tab-code,
.tab-bar--vert .tab--gold .tab-tier{color:var(--gold)}
.tab-bar--vert .tab--red .tab-code,
.tab-bar--vert .tab--red .tab-tier{color:var(--red)}
.tab-bar--vert .tab-progress{
  position:absolute;
  left:10px;
  bottom:8px;
  width:32px;
  height:5px;
  border-radius:var(--radius-pill);
  background:transparent;
}
.tab-bar--vert .tab.active .tab-progress,
.tab-bar--vert .tab--blue.active .tab-progress{
  background:var(--color-primary);
}
.tab-bar--vert .tab--gold.active .tab-progress{
  background:var(--gold);
}
.tab-bar--vert .tab--red.active .tab-progress{
  background:var(--red);
}

.course-panels{position:relative;min-height:360px;transition:height .35s ease}
.cpanel{position:absolute;inset:0 auto auto 0;width:100%;opacity:0;transform:translateY(8px);transition:opacity .3s ease,transform .35s ease;pointer-events:none;visibility:hidden;z-index:1}
.cpanel.active{opacity:1;transform:none;pointer-events:auto;visibility:visible;z-index:2}

.ccard{
  height:100%;
  border-radius:var(--radius-md);
  background:linear-gradient(356deg, rgba(210,231,255,.3) 3%, rgba(210,231,255,.1) 68%);
  border:1px solid rgba(0,87,156,.18);
  overflow:hidden;
  box-sizing:border-box;
}
.ccard--gold{
  background:linear-gradient(356deg, rgba(218,159,16,.14) 3%, rgba(218,159,16,.04) 68%);
  border-color:rgba(218,159,16,.28);
}
.ccard--red{
  background:linear-gradient(356deg, rgba(221,40,37,.12) 3%, rgba(221,40,37,.04) 68%);
  border-color:rgba(221,40,37,.26);
}
.ccard-body{padding:var(--space-module)}
.ccard-main{max-width:720px}
.ccard-tier-pill{
  display:inline-flex;
  align-items:center;
  margin-bottom:var(--space-card);
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.72);
  box-shadow:inset 0 -7px 12px 0 rgba(0,87,156,.12);
  color:var(--color-primary);
  font-family:var(--font-sans,var(--font));
  font-size:var(--font-size-caption);
  font-weight:600;
  letter-spacing:.04em;
  text-transform:capitalize;
}
.ccard-tier-pill::before{content:'- '}
.ccard-tier-pill::after{content:' -'}
.ccard--gold .ccard-tier-pill{
  color:var(--gold);
  box-shadow:inset 0 -7px 12px 0 rgba(184,134,11,.16);
}
.ccard--red .ccard-tier-pill{
  color:var(--red);
  box-shadow:inset 0 -7px 12px 0 rgba(183,28,28,.14);
}
.ccard-name{
  margin:0 0 10px;
  font-size:var(--font-size-3xl,24px);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.25;
  color:var(--color-title);
}
.ccard-sub{
  margin:0 0 var(--space-card);
  font-size:var(--font-size-body);
  line-height:1.65;
  color:var(--color-text-secondary);
}
.ch-title{
  margin:0 0 12px;
  font-size:var(--font-size-base);
  font-weight:700;
  color:var(--color-title);
  letter-spacing:0;
  text-transform:none;
}
.ccard-hl ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
  margin:0 0 var(--space-card);
  padding:0;
}
.ccard-hl li{
  position:relative;
  padding-left:18px;
  font-size:var(--font-size-body);
  line-height:1.55;
  color:var(--color-text-secondary);
}
.ccard-hl li::before{
  content:'';
  position:absolute;
  left:0;
  top:.55em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--color-primary);
}
.ccard--gold .ccard-hl li::before{background:var(--gold)}
.ccard--red .ccard-hl li::before{background:var(--red)}
.ccard-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:0 0 var(--space-card);
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(0,87,156,.28);
  background:var(--bg);
  color:var(--color-primary);
  font-size:var(--font-size-caption);
  font-weight:600;
}
/* 课程 CTA：复用全局 cta-btn，页内按等级变色 */
.sec-courses .cta-btn{
  margin-top:0;
  width:fit-content;
  max-width:100%;
  box-shadow:0 10px 28px -12px rgba(0,87,156,.55);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.sec-courses .cta-btn:hover{
  background:var(--color-primary-dim);
  color:var(--color-text-on-dark);
  transform:translateY(-2px);
}
.ccard--gold .cta-btn{
  background:var(--gold);
  box-shadow:0 10px 28px -12px rgba(184,134,11,.45);
}
.ccard--gold .cta-btn-ic{
  color:var(--gold);
}
.ccard--gold .cta-btn:hover{
  background:#9a7209;
  color:var(--color-text-on-dark);
}
.ccard--red .cta-btn{
  background:var(--red);
  box-shadow:0 10px 28px -12px rgba(183,28,28,.45);
}
.ccard--red .cta-btn-ic{
  color:var(--red);
}
.ccard--red .cta-btn:hover{
  background:#961616;
  color:var(--color-text-on-dark);
}
.ccard-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 16px;
  margin-top:14px;
}
.ccard-price{
  font-size:var(--font-size-caption);
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  color:var(--color-text-secondary);
}
.cta-note{
  font-size:var(--font-size-caption);
  color:var(--color-block-dec);
  line-height:1.4;
}

@media(max-width:960px){
  .training-cert-page .training-hero-stats{max-width:100%}
  .track-shell{
    grid-template-columns:1fr;
    padding:0;
    gap:var(--space-card);
  }
  .tab-bar--vert{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    flex-direction:unset;
    overflow:visible;
    gap:8px 4px;
    padding:var(--space-card);
    -webkit-overflow-scrolling:auto;
  }
  .tab-bar--vert .tab{
    flex:unset;
    min-width:0;
    width:auto;
    padding:10px 8px 16px;
    align-items:center;
    text-align:center;
  }
  .tab-bar--vert .tab-code{
    font-size:var(--font-size-base);
  }
  .tab-bar--vert .tab-tier{
    font-size:var(--font-size-2xs,10px);
  }
  .tab-bar--vert .tab-progress{
    left:50%;
    right:auto;
    transform:translateX(-50%);
    bottom:6px;
    width:24px;
    height:3px;
  }
  .course-panels{min-height:0}
  .cpanel{position:relative;inset:auto;display:none;opacity:1;transform:none;visibility:visible;pointer-events:auto}
  .cpanel.active{display:block}
  .ccard-body{padding:var(--space-card)}
}
@media(max-width:640px){
  .training-cert-page .training-hero-stat{padding:12px 8px}
  .tab-bar--vert{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:6px 2px;
    padding:12px 8px;
  }
  .tab-bar--vert .tab{padding:8px 4px 14px}
}
/* ══ INSTRUCTORS ══ */
.sec-inst{padding:100px 0;background:var(--bg-alt);}
.inst-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.inst-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:all .25s cubic-bezier(.4,0,.2,1);}
.inst-card:hover{border-color:var(--border-hi);transform:translateY(-3px);box-shadow:0 8px 28px var(--blue-glow);}
.inst-avatar{width:72px;height:72px;border-radius:50%;margin:0 auto 16px;object-fit:cover;background:linear-gradient(135deg,var(--blue-faint),rgba(0,137,123,.08));display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;color:var(--blue);font-family: var(--font);overflow:hidden;}
.inst-avatar img{width:100%;height:100%;object-fit:cover;}
.inst-name{font-size: 18px;font-weight:700;color:var(--t1);margin-bottom:4px;}
.inst-role{font-size:12px;font-weight:600;color:var(--blue);margin-bottom:12px;}
.inst-desc{font-size:12.5px;color:var(--t2);line-height:1.55;}

/* ══ RESPONSIVE ══ */
@media(max-width:1024px){.inst-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.inst-grid{grid-template-columns:1fr}}