:root{
  --ink:#0B1210; --paper:#F7F5EF; --mint:#3FD9B4; --mint-dim:rgba(63,217,180,.14);
  --text:#161A1D; --sub:#5B6661; --line:rgba(22,26,29,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--text);font-size:15px;line-height:1.75;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}

/* nav */
.nav{position:absolute;top:0;left:0;right:0;z-index:20;color:rgba(255,255,255,.9)}
.nav-in{max-width:1180px;margin:0 auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600}
.mark{width:28px;height:28px;border-radius:8px;border:1px solid rgba(255,255,255,.34);display:grid;place-items:center;font-size:13px;color:var(--mint)}
.nav-links{display:flex;gap:26px;font-size:13.5px;color:rgba(255,255,255,.62)}
.nav-links a:hover{color:#fff}
.nav-cta{border:1px solid rgba(255,255,255,.26);border-radius:999px;padding:8px 16px;font-size:13px}

/* hero */
.hero{background:
   radial-gradient(900px 520px at 76% 6%, rgba(63,217,180,.14), transparent 62%),
   linear-gradient(180deg,#0D1714 0%, #0B1210 100%);
  color:#fff;padding:128px 0 96px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(680px 480px at 60% 30%,#000,transparent 76%)}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;position:relative;z-index:2}
.eyebrow{font-size:12px;letter-spacing:.22em;color:var(--mint);text-transform:uppercase}
h1{font-size:60px;line-height:1.16;letter-spacing:-.03em;font-weight:700;margin-top:22px}
h1 em{font-style:normal;color:var(--mint);position:relative}
h1 em:after{content:"";position:absolute;left:0;right:-8px;bottom:6px;height:10px;background:var(--mint-dim);z-index:-1}
.lede{margin-top:24px;font-size:16px;line-height:1.95;color:rgba(255,255,255,.62);max-width:430px}
.cta{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:10px;padding:14px 24px;font-size:14.5px;letter-spacing:.01em}
.btn-main{background:var(--mint);color:#04120E;font-weight:600}
.btn-main:hover{filter:brightness(1.04)}
.btn-ghost{border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.86)}
.meta{margin-top:22px;font-size:12px;color:rgba(255,255,255,.55);display:flex;gap:8px;flex-wrap:wrap}
.meta span{border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 11px}

/* hero mock */
.mock{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 40px 90px rgba(0,0,0,.5);color:var(--text);font-size:12px;
  transform:translateY(4px)}
.mock-bar{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-bottom:1px solid #E4E4E7}
.mock-brand{display:flex;align-items:center;gap:7px;font-weight:600;font-size:12.5px}
.mock-brand i{width:20px;height:20px;border-radius:6px;background:#18181B;color:#fff;display:grid;place-items:center;font-size:10px;font-style:normal}
.mock-account{font-size:10.5px;color:#71717A;margin-top:1px}
.mock-menu{border:1px solid #D4D4D8;border-radius:999px;padding:5px 10px;font-size:11px;color:#52525B}
.mock-body{padding:12px;background:#F6F7F9;display:grid;gap:9px}
.mock-sec{background:#fff;border:1px solid #E4E4E7;border-radius:12px;overflow:hidden}
.mock-sum{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;font-size:11.5px;font-weight:600}
.mock-chip{background:#F4F4F5;color:#52525B;font-size:10px;padding:2px 8px;border-radius:999px;font-weight:400}
.mock-secbody{padding:9px 12px;border-top:1px solid #F4F4F5;display:grid;gap:7px}
.mock-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.mock-tile{background:#FAFAFA;border-radius:8px;padding:7px 8px}
.mock-tile b{display:block;font-size:13px;font-weight:600;margin-top:2px}
.mock-tile span{font-size:9.5px;color:#71717A}
.mock-row{display:flex;justify-content:space-between;font-size:10.5px;color:#3F3F46;padding:4px 0;border-bottom:1px solid #F4F4F5}
.mock-row:last-child{border-bottom:0}
.mock-tag{background:#FFFBEB;color:#B45309;border-radius:5px;padding:1px 6px;font-size:9.5px}

/* sections */
section.light{padding:96px 0}
.sec-head h2{font-size:38px;line-height:1.3;letter-spacing:-.02em;margin-top:14px;font-weight:600}
.sec-head p{margin-top:12px;color:var(--sub);max-width:600px;font-size:15px}

.roles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.role-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;min-height:280px}
.role-card .tagline{font-size:12px;letter-spacing:.14em;color:var(--sub)}
.role-card h3{font-size:21px;margin-top:14px;letter-spacing:-.01em}
.role-card p{font-size:13.5px;color:var(--sub);margin-top:10px;line-height:1.9}
.role-card ul{list-style:none;margin-top:16px;border-top:1px solid var(--line)}
.role-card li{font-size:12.5px;color:#3F464D;padding:8px 0;border-bottom:1px solid var(--line)}
.role-card a{margin-top:auto;padding-top:18px;font-size:13.5px;color:#0B1210;font-weight:600;display:flex;justify-content:space-between}

.loop{border-top:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:44px}
.step{border-top:2px solid #161A1D;padding-top:18px}
.step .no{font-size:11px;color:var(--sub);letter-spacing:.16em}
.step h3{font-size:19px;margin-top:10px}
.step p{font-size:13px;color:var(--sub);margin-top:8px;line-height:1.85}

.books{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:44px}
.book h3{font-size:18px}
.book .formula{margin-top:10px;font-size:12.5px;color:var(--sub);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.book p{font-size:13px;color:var(--sub);margin-top:12px;line-height:1.9}
.book a{display:inline-block;margin-top:12px;font-size:12.5px;color:#0B1210;border-bottom:1px solid #161A1D}

.final{background:var(--ink);color:#fff;padding:96px 0;text-align:center}
.final h2{font-size:42px;letter-spacing:-.02em;line-height:1.3}
.final p{color:rgba(255,255,255,.55);margin-top:16px;font-size:14.5px}
.final .cta{justify-content:center;margin-top:30px}

footer{background:var(--ink);color:rgba(255,255,255,.4);border-top:1px solid rgba(255,255,255,.08);padding:26px 0;font-size:12px}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media (max-width:980px){
  .hero-in{grid-template-columns:1fr;gap:40px}
  h1{font-size:44px}
  .mock{max-width:560px}
  .roles,.steps,.book-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  section.light{padding:64px 0}
  .sec-head h2{font-size:29px}
  .final h2{font-size:30px}
}