:root{
  --bg:#09111b;
  --bg-soft:#101b29;
  --panel:#152334;
  --panel-2:#1d3045;
  --line:rgba(255,255,255,.11);
  --line-strong:rgba(255,255,255,.2);
  --text:#f2f6fb;
  --muted:#a7b9cb;
  --blue:#5ab7ff;
  --teal:#66e0ff;
  --gold:#ffcf72;
  --lime:#9be777;
  --green:#67d6a7;
  --yellow:#f2ca65;
  --red:#ff8f83;
  --shadow:0 28px 80px rgba(0,0,0,.32);
  --topbar:78px;
  --sidebar:308px;
  --hero-image:url("assets/academy-hero-bg.png");
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  font-family:"Inter","Noto Sans SC",system-ui,sans-serif;
  background:
    linear-gradient(180deg, rgba(6,11,18,.98), rgba(8,15,24,.98)),
    radial-gradient(circle at 18% 0%, rgba(90,183,255,.12), transparent 38%),
    radial-gradient(circle at 100% 10%, rgba(255,207,114,.08), transparent 28%),
    #09111b;
  overflow-x:hidden;
}
button,input,textarea{font:inherit}
button{border:0;cursor:pointer;color:inherit}
a{color:inherit}
.noise,.grid-backdrop{pointer-events:none;position:fixed;inset:0;z-index:0}
.noise{
  opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.grid-backdrop{
  opacity:.16;
  background:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(#000, transparent 92%);
}
.glass{
  background:linear-gradient(180deg, rgba(21,35,52,.88), rgba(10,18,28,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
}
.glass-light{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(12px);
}
.topbar{
  position:fixed;left:0;right:0;top:0;z-index:20;height:var(--topbar);
  display:flex;align-items:center;gap:18px;padding:0 24px;
  background:rgba(8,14,21,.82);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)
}
.brand{
  display:flex;align-items:center;gap:12px;min-width:300px;text-decoration:none
}
.brand-mark{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#09111a;font-weight:900
}
.brand strong{display:block;font-size:18px}
.brand small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.topnav{display:flex;gap:6px;flex:1;justify-content:center}
.topnav button,.jump,.mode-badge{
  min-height:42px;padding:10px 14px;border-radius:999px
}
.topnav button{
  color:var(--muted);background:transparent;transition:.22s ease
}
.topnav button:hover,.topnav button.active{
  color:#fff;background:rgba(90,183,255,.14)
}
.mode-badge{
  display:flex;align-items:center;background:linear-gradient(135deg,var(--gold),#ffe3aa);
  color:#171204;font-weight:900
}
.home-btn{
  min-height:42px;
  padding:10px 16px;
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  color:#eef7ff;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  transition:.22s ease
}
.home-btn:hover{
  background:rgba(255,255,255,.14)
}
.side-panel{
  position:fixed;left:22px;top:96px;z-index:10;width:var(--sidebar);height:calc(100vh - 116px);
  padding:18px;border-radius:22px;overflow:auto
}
.profile-card{
  position:relative;padding:18px;border-radius:20px;
  background:linear-gradient(135deg,rgba(90,183,255,.2),rgba(255,207,114,.14));
  border:1px solid rgba(255,255,255,.12)
}
.profile-card p,.profile-card span{margin:0;color:var(--muted);font-size:13px}
.profile-card h3{margin:8px 0 6px;font-size:24px}
.pulse-dot{
  position:absolute;right:18px;top:18px;width:10px;height:10px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 0 rgba(155,231,119,.8);animation:pulse 1.8s infinite
}
@keyframes pulse{70%{box-shadow:0 0 0 14px rgba(155,231,119,0)}}
.section-title{display:flex;align-items:center;justify-content:space-between;margin:18px 0 10px}
.section-title span{font-weight:900}
.section-title em{
  font-style:normal;font-size:11px;color:var(--gold);
  border:1px solid rgba(255,207,114,.28);padding:4px 8px;border-radius:999px
}
.progress-track{
  height:10px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.08)
}
.progress-track i{
  display:block;width:0;height:100%;
  background:linear-gradient(90deg,var(--blue),var(--teal),var(--gold));transition:.3s ease
}
.time-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.time-grid div{
  padding:10px;border-radius:14px;text-align:center;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)
}
.time-grid strong{display:block;font-size:18px}
.time-grid small{color:var(--muted)}
.jump-card{display:grid;gap:8px;margin-top:10px}
.jump{
  width:100%;display:flex;align-items:center;gap:10px;text-align:left;
  background:rgba(255,255,255,.03);border:1px solid transparent;color:#d5e1eb;transition:.22s ease
}
.jump span{color:var(--gold);font-size:12px}
.jump:hover,.jump.active{
  transform:translateX(4px);background:rgba(90,183,255,.12);border-color:rgba(90,183,255,.28);color:#fff
}
.speaker-note{margin-top:14px;padding:14px;border-radius:18px}
.speaker-note p{margin:0;color:#cad8e4;font-size:13px;line-height:1.8}
.page{
  position:relative;z-index:1;margin-left:calc(var(--sidebar) + 44px);
  padding:calc(var(--topbar) + 26px) 34px 80px;max-width:calc(100vw - var(--sidebar) - 44px)
}
.section{padding:34px 0 74px;min-height:calc(100vh - var(--topbar));scroll-margin-top:92px}
.hero{
  position:relative;display:grid;grid-template-columns:minmax(430px,.9fr) minmax(460px,1.1fr);
  gap:28px;align-items:center;min-height:calc(100vh - var(--topbar) - 28px);
  padding:34px;border-radius:30px;overflow:hidden;isolation:isolate;border:1px solid rgba(255,255,255,.08)
}
.hero:before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(5,10,16,.94) 0%, rgba(6,12,19,.82) 34%, rgba(8,15,24,.55) 62%, rgba(8,15,24,.82) 100%),
    radial-gradient(circle at 70% 30%, rgba(102,224,255,.2), transparent 28%),
    radial-gradient(circle at 84% 14%, rgba(255,207,114,.18), transparent 24%),
    var(--hero-image) center/cover no-repeat
}
.hero:after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.02), transparent 20%, transparent 80%, rgba(90,183,255,.08)),
    linear-gradient(120deg, rgba(90,183,255,.05), transparent 36%, transparent 66%, rgba(255,207,114,.05))
}
.hero > *{position:relative;z-index:1}
.hero-copyblock{
  max-width:760px;padding:32px 34px;border-radius:26px;
  background:linear-gradient(180deg, rgba(8,14,23,.58), rgba(8,14,23,.32));
  border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 70px rgba(0,0,0,.18);backdrop-filter:blur(10px)
}
.tagline{
  display:inline-flex;align-items:center;gap:10px;padding:9px 14px;border-radius:999px;
  color:#d6ecff;background:rgba(90,183,255,.12);border:1px solid rgba(90,183,255,.22);
  font-size:12px;font-weight:900;letter-spacing:.08em
}
.tagline span{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 14px var(--lime)}
h1{
  margin:24px 0 16px;font-size:clamp(48px,5vw,84px);line-height:1.02;text-shadow:0 14px 40px rgba(0,0,0,.38)
}
h1 strong{
  background:linear-gradient(90deg,#fff,var(--teal),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent
}
.hero-copy{max-width:620px;font-size:18px;line-height:1.95;color:#dbe7f0}
.hero-quote{
  display:grid;gap:10px;margin-top:20px
}
.hero-quote p{
  margin:0;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);color:#ebf5ff
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 0}
.primary-btn,.ghost-btn,.ghost-link{
  min-height:48px;padding:12px 18px;border-radius:999px;font-weight:900;transition:.22s ease;text-decoration:none;
  display:inline-flex;align-items:center;justify-content:center
}
.primary-btn{
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#09111a;box-shadow:0 18px 46px rgba(90,183,255,.22)
}
.primary-btn:hover{transform:translateY(-2px);box-shadow:0 22px 54px rgba(90,183,255,.3)}
.ghost-btn,.ghost-link{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);color:#eef7ff
}
.ghost-btn:hover,.ghost-link:hover{background:rgba(255,255,255,.14)}
.hero-stage{display:flex;justify-content:flex-end}
.hero-console{
  width:100%;min-height:640px;padding:22px;border-radius:26px;display:grid;gap:18px
}
.console-head{display:flex;align-items:center;justify-content:space-between}
.console-head span{color:var(--gold);font-size:12px;font-weight:900;letter-spacing:.12em}
.console-head b{font-size:18px}
.console-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;align-content:start
}
.console-card{
  min-height:170px;padding:20px;border-radius:20px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)
}
.console-card strong{display:block;font-size:20px;margin-bottom:12px}
.console-card p{margin:0;color:#d4e1eb;line-height:1.8}
.spotlight{
  background:linear-gradient(180deg, rgba(90,183,255,.14), rgba(255,255,255,.04))
}
.pulse-card{animation:cardPulse 2.6s ease-in-out infinite}
@keyframes cardPulse{50%{transform:translateY(-6px);box-shadow:0 24px 54px rgba(0,0,0,.18)}}
.section-head{margin-bottom:24px}
.section-head span{color:var(--gold);font-size:12px;font-weight:900;letter-spacing:.16em}
.section-head h2{margin:12px 0;font-size:clamp(32px,3vw,54px);line-height:1.12}
.section-head p{max-width:980px;color:#bfd0df;font-size:17px;line-height:1.86}
.timeline-grid{
  display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px
}
.timeline-card{
  padding:22px;border-radius:22px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);position:relative;overflow:hidden
}
.timeline-card:before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--blue),var(--teal),var(--gold))
}
.timeline-card strong{display:block;font-size:18px}
.timeline-card em{display:block;margin:10px 0 12px;font-style:normal;color:var(--gold);font-size:13px;font-weight:900}
.timeline-card p{margin:0;color:#d0dcea;line-height:1.75}
.two-col{
  display:grid;grid-template-columns:1fr 1fr;gap:20px
}
.compact-gap{gap:16px}
.content-panel{
  padding:24px;border-radius:24px;display:grid;gap:20px
}
.panel-headline span{color:var(--gold);font-size:12px;font-weight:900;letter-spacing:.12em}
.panel-headline h3{margin:10px 0 0;font-size:30px;line-height:1.25}
.tree-visual{
  position:relative;min-height:360px;border-radius:24px;background:radial-gradient(circle at 50% 45%, rgba(90,183,255,.12), transparent 44%);
  border:1px solid rgba(255,255,255,.06)
}
.tree-core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:136px;height:136px;border-radius:24px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#08111a;font-size:28px;font-weight:900;
  box-shadow:0 0 50px rgba(90,183,255,.28)
}
.tree-node{
  position:absolute;padding:12px 16px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(10px);font-weight:800
}
.node-a{left:4%;top:12%}
.node-b{right:8%;top:10%}
.node-c{left:0;top:46%}
.node-d{right:0;top:42%}
.node-e{left:10%;bottom:12%}
.node-f{left:38%;bottom:4%}
.node-g{right:9%;bottom:14%}
.insight-box{
  padding:16px 18px;border-radius:18px;background:linear-gradient(135deg, rgba(255,207,114,.12), rgba(90,183,255,.08));
  border-left:4px solid var(--gold)
}
.insight-box strong{display:block;margin-bottom:10px}
.insight-box p{margin:0;color:#e5eff8;line-height:1.85}
.field span{display:block;margin-bottom:8px;color:#cee0ee;font-size:13px}
input{
  width:100%;min-height:48px;padding:12px 14px;border-radius:14px;color:#fff;
  background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.12);outline:none
}
input:focus{border-color:rgba(102,224,255,.5);box-shadow:0 0 0 4px rgba(102,224,255,.08)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip-row button{
  min-height:40px;padding:10px 14px;border-radius:999px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);color:#d2dfeb;font-weight:900;transition:.22s ease
}
.chip-row button.active,.chip-row button:hover{
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#09111a
}
.result-panel{
  padding:18px;border-radius:20px;background:rgba(0,0,0,.14);border:1px solid rgba(255,255,255,.08);min-height:220px;
  color:#ebf7ff;white-space:pre-wrap;line-height:1.85
}
.result-panel.large{min-height:340px}
.workbench{
  display:grid;grid-template-columns:320px minmax(0,1fr);gap:20px;align-items:start
}
.card-rail{
  display:grid;gap:12px
}
.scenario-card{
  padding:18px;border-radius:20px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);transition:.22s ease;text-align:left
}
.scenario-card strong{display:block;font-size:20px}
.scenario-card span{display:block;margin-top:8px;color:var(--muted);line-height:1.7}
.scenario-card.active,.scenario-card:hover{
  transform:translateX(4px);background:linear-gradient(180deg, rgba(90,183,255,.14), rgba(255,255,255,.04));border-color:rgba(90,183,255,.26)
}
.detail-panel{
  padding:24px;border-radius:24px;display:grid;gap:18px
}
.detail-panel h3{margin:0;font-size:30px}
.meta-line{
  display:flex;flex-wrap:wrap;gap:10px
}
.meta-chip{
  min-height:30px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  font-size:12px;font-weight:800
}
.detail-columns{
  display:grid;grid-template-columns:1fr 1fr;gap:18px
}
.detail-block{
  padding:18px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)
}
.detail-block h4{margin:0 0 12px;font-size:18px}
.detail-block ul{margin:0;padding-left:18px;color:#d7e5f0;line-height:1.9}
.prompt-box{
  padding:18px;border-radius:18px;background:rgba(0,0,0,.16);border:1px solid rgba(255,255,255,.08);white-space:pre-wrap;line-height:1.85
}
.step-list,.trend-list{
  display:grid;gap:10px
}
.step-list div,.trend-list div{
  padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)
}
.path-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px
}
.path-card{
  padding:22px;border-radius:22px;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.08)
}
.path-card strong{display:block;font-size:22px}
.path-card span{display:block;margin:10px 0 12px;color:var(--gold);font-weight:900}
.path-card p{margin:0;color:#d0deea;line-height:1.8}
.traffic-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px
}
.traffic-card{
  padding:24px;border-radius:24px;min-height:320px
}
.traffic-card.green{background:linear-gradient(180deg, rgba(103,214,167,.16), rgba(255,255,255,.04));border:1px solid rgba(103,214,167,.2)}
.traffic-card.yellow{background:linear-gradient(180deg, rgba(242,202,101,.16), rgba(255,255,255,.04));border:1px solid rgba(242,202,101,.2)}
.traffic-card.red{background:linear-gradient(180deg, rgba(255,143,131,.16), rgba(255,255,255,.04));border:1px solid rgba(255,143,131,.2)}
.traffic-card strong{display:block;font-size:24px}
.traffic-card p{margin:8px 0 16px;color:#d9e5ef}
.traffic-card ul{margin:0;padding-left:18px;line-height:1.9;color:#eef6fd}
.checklist{display:grid;gap:10px}
.check-item{
  display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)
}
.check-item input{width:18px;min-height:auto;margin-top:4px}
.risk-summary{
  padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(255,207,114,.12), rgba(90,183,255,.08));border-left:4px solid var(--gold);line-height:1.85
}
.policy-note{
  padding:18px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);line-height:1.85
}
.policy-note strong{display:block;margin-bottom:10px}
.policy-note p{margin:0;color:#dde9f3}
.case-shell{
  margin-top:20px;padding:24px;border-radius:24px;display:grid;gap:20px
}
.case-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px
}
.case-card{
  padding:18px;border-radius:20px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);text-align:left;transition:.22s ease
}
.case-card strong{display:block;font-size:18px}
.case-card span{display:block;margin-top:8px;color:var(--muted);line-height:1.7}
.case-card.active,.case-card:hover{
  transform:translateY(-3px);background:linear-gradient(180deg, rgba(90,183,255,.14), rgba(255,255,255,.04));border-color:rgba(90,183,255,.26)
}
.case-detail{
  padding:20px;border-radius:20px;background:rgba(0,0,0,.16);border:1px solid rgba(255,255,255,.08);display:grid;gap:16px
}
.case-detail h3{margin:0;font-size:28px}
.case-detail-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px
}
.next-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px
}
.next-card{
  padding:24px;border-radius:24px;text-decoration:none;transition:.22s ease
}
.next-card span{color:var(--gold);font-size:12px;font-weight:900;letter-spacing:.12em}
.next-card strong{display:block;margin:12px 0 10px;font-size:26px}
.next-card p{margin:0;color:#d0deea;line-height:1.8}
.next-card:hover{transform:translateY(-4px);border-color:rgba(90,183,255,.26);background:linear-gradient(180deg, rgba(90,183,255,.12), rgba(255,255,255,.04))}
.floating-action{
  position:fixed;right:24px;bottom:24px;z-index:30;width:52px;height:52px;border-radius:999px;
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#0a1119;font-size:18px;font-weight:900
}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,30px);opacity:0;z-index:40;
  padding:12px 18px;border-radius:999px;background:rgba(0,0,0,.72);border:1px solid rgba(255,255,255,.16);transition:.22s ease
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.animate-in{
  animation:fadeLift .32s ease-out
}
@keyframes fadeLift{
  from{opacity:0;transform:translateY(12px)}
  to{opacity:1;transform:translateY(0)}
}
@media (max-width:1220px){
  :root{--sidebar:0px}
  .side-panel{display:none}
  .page{margin-left:0;max-width:100%;padding-left:18px;padding-right:18px}
  .topnav{display:none}
  .hero,.two-col,.workbench,.detail-columns,.case-detail-grid,.path-grid,.traffic-grid,.next-grid,.timeline-grid,.console-grid{grid-template-columns:1fr}
  .hero{padding:24px;min-height:auto}
  .hero-copyblock{padding:28px 24px}
}
@media (max-width:720px){
  .topbar{padding:0 12px}
  .brand small{display:none}
  .home-btn{display:none}
  h1{font-size:42px}
  .section-head h2{font-size:30px}
  .hero-copy{font-size:16px}
  .hero{padding:18px;border-radius:22px}
  .hero-copyblock,.content-panel,.detail-panel,.case-shell,.hero-console{padding:20px;border-radius:18px}
  .topnav{display:none}
  .chip-row,.hero-actions{flex-direction:column}
  .primary-btn,.ghost-btn,.ghost-link{width:100%}
  .case-grid{grid-template-columns:1fr}
}