:root{
  --ab-primary:#1e5ac9;
  --ab-primary-dark:#0f3f99;
  --ab-accent:#e87722;
  --ab-text:#1a2238;
  --ab-text-sub:#444444;
  --ab-border:#e5e9f2;
  --ab-bg:#f7f9fc;
  --ab-white:#ffffff;
  --ab-radius:12px;
  --ab-shadow-sm:0 2px 8px rgba(15,23,42,.04);
  --ab-shadow-lg:0 20px 48px rgba(15,23,42,.1);
  --ab-ease:cubic-bezier(.4,0,.2,1);
}

.ab-hero{position:relative;min-height:347px;display:flex;align-items:center;overflow:hidden;background:#0a2a7a}
.ab-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(.9) brightness(.6)}
.ab-hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,42,122,.92) 0%,rgba(30,90,201,.85) 50%,rgba(60,124,224,.7) 100%)}
.ab-hero-inner{position:relative;z-index:2;width:75%;max-width:1600px;margin:0 auto;color:#fff;padding:60px 0}
@media (max-width:768px){.ab-hero-inner{width:100%;padding:60px 15px}}
.ab-hero-tag{font-size:13px;letter-spacing:3px;color:rgba(255,255,255,.8);margin:0 0 18px;font-weight:600;text-transform:uppercase}
.ab-hero-title{font-size:48px;line-height:1.25;font-weight:800;margin:0 0 22px;letter-spacing:-1px;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.ab-hero-sub{font-size:17px;line-height:1.85;margin:0 0 36px;color:rgba(255,255,255,.92);max-width:760px;font-weight:400}
.ab-hero-actions{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:768px){.ab-hero-title{font-size:30px}.ab-hero-sub{font-size:15px}}

.ab-btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:10px;font-size:15px;font-weight:700;letter-spacing:.5px;transition:all .25s var(--ab-ease);cursor:pointer;border:none;text-decoration:none;font-family:inherit;white-space:nowrap}
.ab-btn-primary{background:linear-gradient(135deg,#e87722,#d4530a);color:#fff;box-shadow:0 8px 22px rgba(232,119,34,.32)}
.ab-btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(232,119,34,.42);color:#fff}
.ab-btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.ab-btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff;color:#fff}
.ab-btn-light{background:#fff;color:#1a3a5c;box-shadow:0 8px 22px rgba(0,0,0,.18)}
.ab-btn-light:hover{transform:translateY(-2px);color:#1a3a5c;box-shadow:0 14px 32px rgba(0,0,0,.25)}
.ab-btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.ab-btn-ghost-light:hover{background:rgba(255,255,255,.15);border-color:#fff;color:#fff}

.ab-section{padding:88px 0;background:#fff;position:relative}
@media(max-width:768px){.ab-section{padding:60px 0}}
.ab-head{margin-bottom:48px;max-width:840px}
.ab-head .yb-sec-title{margin-top:10px}

.ab-about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
@media(max-width:992px){.ab-about-grid{grid-template-columns:1fr;gap:34px}}

.ab-hub{position:relative;padding-left:8px}
.ab-hub::before{content:"";position:absolute;left:15px;top:22px;bottom:22px;width:1px;background:linear-gradient(180deg,rgba(232,119,34,.55),rgba(232,119,34,.05))}
.ab-hub-item{display:flex;gap:18px;align-items:flex-start;padding:18px 0;position:relative}
.ab-h-dot{flex-shrink:0;width:11px;height:11px;border-radius:50%;background:#fff;border:2.5px solid var(--ab-accent);margin-top:7px;position:relative;z-index:1;transition:all .3s var(--ab-ease)}
.ab-hub-item:hover .ab-h-dot{background:var(--ab-accent);box-shadow:0 0 0 5px rgba(232,119,34,.14)}
.ab-h-name{font-size:18px;font-weight:800;color:var(--ab-text);line-height:1.4}
.ab-h-name small{display:block;font-family:"SF Mono","Consolas",monospace;font-size:11px;font-weight:600;letter-spacing:2px;color:#94a3b8;margin-top:5px}
.ab-hub-item p{font-size:14px;line-height:1.8;color:var(--ab-text-sub);margin:8px 0 0}

.ab-about-img{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--ab-border);box-shadow:var(--ab-shadow-lg)}
.ab-about-img::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#e87722,#d4530a);z-index:1}
.ab-about-img img{width:100%;height:100%;display:block;object-fit:cover;aspect-ratio:4/3}

.ab-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:12px;margin-top:44px}
.ab-flow-node{flex:1 1 150px;min-width:150px;background:#fff;border:1px solid var(--ab-border);border-radius:var(--ab-radius);padding:22px 18px;transition:all .3s var(--ab-ease);position:relative;overflow:hidden}
.ab-flow-node::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#e87722,#d4530a);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ab-ease)}
.ab-flow-node:hover{transform:translateY(-6px);border-color:rgba(232,119,34,.35);box-shadow:var(--ab-shadow-lg)}
.ab-flow-node:hover::before{transform:scaleX(1)}
.ab-fn-no{font-family:"SF Mono","Consolas",monospace;font-size:12px;font-weight:700;letter-spacing:2px;color:var(--ab-accent);display:block;margin-bottom:10px}
.ab-flow-node h4{font-size:16px;font-weight:800;color:var(--ab-text);margin:0 0 6px}
.ab-flow-node p{font-size:13px;color:var(--ab-text-sub);margin:0;line-height:1.6}
.ab-flow-arrow{display:flex;align-items:center;font-size:22px;color:rgba(232,119,34,.5);flex:0 0 auto}
@media(max-width:1100px){.ab-flow-arrow{display:none}}

.ab-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
@media(max-width:1024px){.ab-grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.ab-grid-4{grid-template-columns:1fr}}
.ab-pf-card{background:#fff;border:1px solid var(--ab-border);border-radius:var(--ab-radius);padding:26px 24px;transition:all .3s var(--ab-ease);position:relative;overflow:hidden}
.ab-pf-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#e87722,#d4530a);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ab-ease)}
.ab-pf-card:hover{transform:translateY(-6px);border-color:rgba(232,119,34,.3);box-shadow:var(--ab-shadow-lg)}
.ab-pf-card:hover::before{transform:scaleX(1)}
.ab-pf-no{font-family:"SF Mono","Consolas",monospace;font-size:11px;font-weight:700;letter-spacing:2px;color:var(--ab-accent);display:inline-flex;align-items:center;gap:8px;margin-bottom:14px}
.ab-pf-no::before{content:"";width:18px;height:2px;background:var(--ab-accent);border-radius:1px}
.ab-pf-card h3{font-size:17px;font-weight:800;color:var(--ab-text);margin:0 0 8px;line-height:1.45}
.ab-pf-card p{font-size:13px;line-height:1.7;color:var(--ab-text-sub);margin:0}

.ab-cta{background:linear-gradient(135deg,#1a3a5c 0%,#0f2845 60%,#1a3a5c 100%);padding:80px 0}
.ab-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
@media (max-width:768px){.ab-cta-inner{flex-direction:column;text-align:center;gap:24px}}
.ab-cta-text{flex:1;min-width:280px}
.ab-cta-title{font-size:28px;font-weight:800;color:#fff;margin:0 0 8px;letter-spacing:-.5px}
.ab-cta-sub{font-size:15px;color:rgba(255,255,255,.88);margin:0}
.ab-cta-actions{display:flex;gap:14px;flex-wrap:wrap}