@property --metal-angle{syntax:"<angle>";inherits:false;initial-value:0deg}.ynzc-course{--bg:#000000;--surface:#1C1C1E;--surface-deep:#111113;--text:#F5F5F7;--sub:#C7C9C8;--muted:#9A9A9F;--muted2:#6E6E73;--blue:#1950D1;--orange:#E05E12;--paper:#F5F5F7;--ink:#080808;--display:"General Sans","Helvetica Neue",Arial,sans-serif;--body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--gutter:54px;--mx:50vw;--my:50vh}.ynzc-course *{box-sizing:border-box}.ynzc-course{scroll-behavior:smooth;background:#000}.ynzc-course{margin:0;min-height:100svh;overflow-x:hidden;background:#000;color:var(--text);font-family:var(--body);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}.ynzc-course a{color:inherit;text-decoration:none}.ynzc-course button,.ynzc-course input{font:inherit}.ynzc-course button{cursor:pointer}.ynzc-course img{display:block;max-width:100%}.ynzc-course .page{min-height:100svh;position:relative;isolation:isolate;overflow:hidden;background:#000}.ynzc-course .global-grid{position:fixed;inset:0;z-index:-10;pointer-events:none;opacity:.22;background-image:linear-gradient(rgba(255,255,255,.021) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.021) 1px,transparent 1px);background-size:76px 76px;mask-image:linear-gradient(to bottom,#000,rgba(0,0,0,.84) 58%,transparent 100%)}.ynzc-course .global-noise{position:fixed;inset:0;z-index:-9;pointer-events:none;opacity:.15;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.14'/%3E%3C/svg%3E");mix-blend-mode:soft-light}.ynzc-course .cursor-light{position:fixed;inset:0;pointer-events:none;z-index:-8;background:radial-gradient(circle 340px at var(--mx) var(--my),rgba(25,80,209,.082),transparent 69%),radial-gradient(circle 220px at calc(var(--mx) + 90px) calc(var(--my) + 80px),rgba(224,94,18,.032),transparent 72%)}.ynzc-course .header{width:min(100%,1440px);height:74px;margin:0 auto;padding:0 var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;z-index:30;border-bottom:1px solid rgba(255,255,255,.06)}.ynzc-course .brand-logo{width:145px;height:auto}.ynzc-course .nav{display:flex;align-items:center;gap:26px}.ynzc-course .nav a{min-height:44px;display:inline-flex;align-items:center;color:var(--muted);font-size:11px;font-weight:600;transition:color .2s ease,background .2s ease,border-color .2s ease}.ynzc-course .nav a:hover{color:var(--text)}.ynzc-course .nav .nav-cta{padding:0 15px;border:1px solid rgba(255,255,255,.10);border-radius:13px;background:rgba(255,255,255,.03);color:var(--sub)}.ynzc-course .nav .nav-cta:hover{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.05)}.ynzc-course .hero{width:min(100%,1440px);min-height:calc(100svh - 74px);margin:0 auto;padding:86px var(--gutter) 76px;display:flex;flex-direction:column;justify-content:space-between;position:relative;isolation:isolate}.ynzc-course .hero-wave{position:absolute;left:0;top:0;width:100%;height:100%;z-index:-5;pointer-events:none;opacity:.94}.ynzc-course .hero-ambient{position:absolute;inset:0;z-index:-6;pointer-events:none;background:radial-gradient(circle at 75% 18%,rgba(25,80,209,.10),transparent 24%),radial-gradient(circle at 92% 80%,rgba(224,94,18,.045),transparent 20%)}.ynzc-course .hero-outline{position:absolute;inset:0 -1vw;z-index:-7;overflow:hidden;pointer-events:none;user-select:none;display:flex;flex-direction:column;justify-content:center;opacity:.075}.ynzc-course .hero-outline span{display:block;font-family:var(--display);font-size:clamp(130px,16vw,280px);line-height:.72;letter-spacing:-.08em;font-weight:700;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(245,245,247,.94);transform:translateX(calc((var(--mx) - 50vw) * .014))}.ynzc-course .hero-outline span:nth-child(2){text-align:right;transform:translateX(calc((50vw - var(--mx)) * .014))}.ynzc-course .hero-top{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(320px,.56fr);gap:70px;align-items:start}.ynzc-course .eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 20px;color:var(--muted);font-size:11px;font-weight:700;line-height:1.25;letter-spacing:.14em;text-transform:uppercase}.ynzc-course .eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 18px rgba(224,94,18,.46)}.ynzc-course .hero h1{margin:0;max-width:900px;font-family:var(--display);font-size:clamp(72px,7.3vw,116px);line-height:.88;letter-spacing:-.055em;font-weight:600;text-wrap:balance}.ynzc-course .hero h1 span{display:block;color:#77777D}.ynzc-course .hero-copy{max-width:690px;margin:29px 0 0;color:var(--sub);font-size:17px;line-height:1.75}.ynzc-course .hero-proof{margin-top:26px;display:grid;gap:10px}.ynzc-course .hero-proof span{display:flex;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--muted);font-size:11px;font-weight:600}.ynzc-course .hero-proof b{color:var(--orange);font-weight:700}.ynzc-course .hero-bottom{display:grid;grid-template-columns:minmax(0,1fr) minmax(430px,.62fr);gap:48px;align-items:end}.ynzc-course .wave-caption{display:flex;align-items:center;gap:13px;color:var(--muted);font-size:11px;font-weight:600}.ynzc-course .wave-caption i{flex:0 0 84px;height:1px;background:linear-gradient(90deg,var(--blue),rgba(245,245,247,.76),var(--orange));opacity:.72}.ynzc-course .wait-edge{position:relative;padding:1px;border-radius:28px;overflow:hidden;isolation:isolate}.ynzc-course .wait-edge::before{content:"";position:absolute;inset:-75%;z-index:-1;background:conic-gradient( from var(--metal-angle),transparent 0 23%,rgba(25,80,209,.88) 33%,rgba(107,113,125,.86) 42%,rgba(245,245,247,.97) 50%,rgba(176,182,192,.88) 58%,rgba(224,94,18,.82) 68%,transparent 78% 100% );opacity:.64;animation:metal-spin 10.4s linear infinite;transition:opacity .3s ease,filter .3s ease}.ynzc-course .wait-edge:hover::before{opacity:.80;filter:brightness(1.04)}@keyframes metal-spin{to{--metal-angle:360deg}}.ynzc-course .wait-card{border-radius:27px;padding:24px;background:rgba(19,19,21,.96);border:1px solid rgba(255,255,255,.065);backdrop-filter:blur(20px);box-shadow:0 32px 100px rgba(0,0,0,.45)}.ynzc-course .wait-row{display:grid;grid-template-columns:1fr auto;gap:10px}.ynzc-course .wait-card input{min-width:0;min-height:56px;border:1px solid rgba(255,255,255,.11);border-radius:15px;background:#0C0C0E;color:#fff;padding:0 16px;outline:none;font-size:14px;font-weight:500}.ynzc-course .wait-card input:focus{border-color:rgba(25,80,209,.75);box-shadow:0 0 0 4px rgba(25,80,209,.11)}.ynzc-course .wait-card button{min-width:174px;min-height:56px;border:0;border-radius:15px;background:#F5F5F7;color:#000;padding:0 18px;font-size:11px;font-weight:700}.ynzc-course .wait-card small{display:block;margin-top:12px;color:var(--muted2);font-size:10px;line-height:1.5;font-weight:500}.ynzc-course .section-dark{position:relative;overflow:hidden;isolation:isolate}.ynzc-course .section-inner{width:min(100%,1440px);margin:0 auto;padding:126px var(--gutter);position:relative;z-index:2}.ynzc-course .section-outline{position:absolute;left:-1vw;right:-1vw;top:50%;transform:translateY(-50%);z-index:-4;pointer-events:none;user-select:none;opacity:.07;overflow:hidden}.ynzc-course .section-outline span{display:block;font-family:var(--display);font-size:clamp(150px,18vw,300px);line-height:.78;letter-spacing:-.08em;font-weight:700;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(245,245,247,.95)}.ynzc-course .section-head{max-width:860px;margin-bottom:48px}.ynzc-course .section-head h2{margin:0;font-family:var(--display);font-size:clamp(48px,5.1vw,78px);line-height:.98;letter-spacing:-.055em;font-weight:600;text-wrap:balance}.ynzc-course .section-head p{max-width:720px;margin:21px 0 0;color:var(--sub);font-size:15px;line-height:1.72}.ynzc-course .problem-section{background:radial-gradient(circle at 90% 56%,rgba(224,94,18,.065),transparent 27%),radial-gradient(circle at 14% 20%,rgba(25,80,209,.065),transparent 25%),#050506;border-top:1px solid rgba(255,255,255,.04)}.ynzc-course .problem-section::after{content:"";position:absolute;inset:0;z-index:-5;pointer-events:none;opacity:.30;background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:72px 72px;mask-image:radial-gradient(circle 520px at var(--mx) var(--my),#000,rgba(0,0,0,.35) 62%,transparent 90%)}.ynzc-course .problem-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:16px}.ynzc-course .problem-main{min-height:430px;border:1px solid rgba(255,255,255,.075);border-radius:30px;padding:36px;background:rgba(17,17,19,.88);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.ynzc-course .problem-main h3{margin:0;max-width:650px;font-family:var(--display);font-size:clamp(38px,4vw,58px);line-height:.98;letter-spacing:-.048em;font-weight:600}.ynzc-course .problem-main h3 span{color:#77777D}.ynzc-course .problem-main p{max-width:620px;margin:18px 0 0;color:var(--sub);font-size:14px;line-height:1.72}.ynzc-course .mini-wave{height:110px;display:flex;align-items:end;gap:4px;overflow:hidden}.ynzc-course .mini-wave i{flex:1;min-width:2px;border-radius:99px 99px 0 0;background:linear-gradient(to top,var(--blue),rgba(245,245,247,.62),var(--orange));opacity:.43;animation:mini-wave 1.7s ease-in-out infinite alternate}.ynzc-course .mini-wave i:nth-child(2n){animation-delay:.18s}.ynzc-course .mini-wave i:nth-child(3n){animation-delay:.36s}.ynzc-course .mini-wave i:nth-child(5n){animation-delay:.54s}@keyframes mini-wave{from{height:10%}to{height:91%}}.ynzc-course .problem-stack{display:grid;gap:12px}.ynzc-course .problem-item{min-height:135px;padding:24px;border-radius:24px;border:1px solid rgba(255,255,255,.075);background:rgba(28,28,30,.74)}.ynzc-course .problem-item small{display:block;margin-bottom:9px;color:var(--orange);font-size:10px;font-weight:700;letter-spacing:.09em}.ynzc-course .problem-item strong{display:block;font-family:var(--display);font-size:18px;letter-spacing:-.02em;font-weight:600}.ynzc-course .problem-item p{margin:8px 0 0;color:var(--muted);font-size:11px;line-height:1.6;font-weight:500}