:root{
  --navy:#0b1220; --navy2:#111c30; --ink:#1a2332; --body:#33404f;
  --teal:#0d9488; --teal-d:#0b7a70; --orange:#ea580c; --orange-d:#c2460a;
  --line:#e4e8ee; --soft:#f5f7fa; --muted:#6b7787; --white:#fff;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--body);background:#fff;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--teal);text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{color:var(--ink);line-height:1.25;margin:0 0 .5em}

/* nav */
.nav{display:flex;align-items:center;gap:26px;padding:16px 32px;background:var(--navy);position:sticky;top:0;z-index:20}
.nav .logo{font-weight:800;font-size:22px;letter-spacing:.5px;background:linear-gradient(90deg,#38bdf8,#0d9488 55%,#ea580c);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#fff}
.nav .lk{color:#c6d0dc;font-size:14px;font-weight:500}
.nav .lk:hover{color:#fff}
.nav .lk:nth-child(2){margin-left:12px}
.nav .lk:last-child{margin-left:auto;background:var(--orange);color:#fff;padding:8px 16px;border-radius:8px}
.nav .lk:last-child:hover{background:var(--orange-d);color:#fff}

/* hero */
.hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy2) 60%,#16233c 100%);color:#e8edf3;padding:54px 32px 46px}
.hero .wrap{max-width:var(--maxw);margin:0 auto}
.hero .wrap.narrow{max-width:820px}
.hero .kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#5eead4;border:1px solid rgba(94,234,212,.4);padding:4px 11px;border-radius:999px;margin-bottom:16px}
.hero h1{color:#fff;font-size:34px;max-width:900px}
.hero .sub{color:#b8c4d2;font-size:17px;max-width:760px;margin:14px 0 0}
.hero .crumb{font-size:12.5px;color:#8aa;margin-bottom:14px}
.hero .crumb a{color:#9fb2c4}
.hero .meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:13.5px;color:#c6d0dc}
.hero .meta b{color:#fff;font-weight:600}

/* hub grid */
.grid{max-width:var(--maxw);margin:0 auto;padding:40px 32px 60px;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .18s,transform .18s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 12px 30px rgba(11,18,32,.12);transform:translateY(-3px)}
.thumb{aspect-ratio:16/10;background:var(--soft);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb.ph,.ph{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;background:repeating-linear-gradient(135deg,#eef1f5,#eef1f5 10px,#e7ebf0 10px,#e7ebf0 20px)}
.cb{padding:16px 18px 20px}
.cj{font-size:11.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--teal)}
.card h3{font-size:17px;margin:8px 0 10px}
.cd{font-size:12.5px;color:var(--muted)}

/* article */
main{background:#fff}
.art{max-width:820px;margin:0 auto;padding:44px 32px 20px;font-size:16.5px}
.art p{margin:0 0 16px}
.figure{margin:0 0 30px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--soft)}
.figure img{width:100%}
.figure figcaption{font-size:12.5px;color:var(--muted);padding:10px 14px;background:#fff;border-top:1px solid var(--line)}
.findings{list-style:none;margin:22px 0;padding:20px 22px;background:var(--soft);border-left:4px solid var(--teal);border-radius:0 10px 10px 0}
.findings li{margin:0 0 9px;padding-left:22px;position:relative}
.findings li:last-child{margin-bottom:0}
.findings li:before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--orange)}
.cite{max-width:820px;margin:26px auto;padding:16px 20px;background:#fbfcfd;border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--muted)}
.cite a{font-weight:600}

/* dual CTA */
.paths{max-width:820px;margin:36px auto;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.path{border-radius:14px;padding:24px 22px;color:#fff}
.path .tag{font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;opacity:.9;margin-bottom:8px}
.path h3{color:#fff;font-size:19px}
.path p{font-size:14px;opacity:.95;margin:0 0 18px}
.path.lumora{background:linear-gradient(150deg,#ea580c,#c2410c)}
.path.lamko{background:linear-gradient(150deg,#0d9488,#0f766e)}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 16px}
.chip{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px}
.btn{display:inline-block;font-weight:600;font-size:14px;padding:10px 18px;border-radius:9px;margin:0 8px 0 0}
.btn.o{background:#fff;color:var(--orange-d)}
.btn.t{background:#fff;color:var(--teal-d)}
.btn.g{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn:hover{opacity:.92}

/* share */
.share{max-width:820px;margin:30px auto 10px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.share span{font-weight:600;color:var(--ink)}
.sbtn{border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:8px;font-size:13px;font-weight:500}
.sbtn:hover{border-color:var(--teal);color:var(--teal)}

footer{max-width:var(--maxw);margin:40px auto 0;padding:26px 32px 40px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);text-align:center}

@media(max-width:720px){
  .nav{gap:14px;padding:12px 18px;flex-wrap:wrap}
  .nav .lk:nth-child(2){margin-left:0}
  .hero{padding:36px 20px}.hero h1{font-size:26px}
  .grid{padding:28px 18px 44px;gap:18px}
  .art{padding:30px 20px 10px;font-size:16px}
  .paths{grid-template-columns:1fr;margin:28px 20px}
  .cite,.share,.findings{margin-left:20px;margin-right:20px}
}


/* RICHFMT-CSS */
.art h2{font-size:clamp(20px,2.2vw,27px);line-height:1.3;color:#0f172a;font-weight:800;margin:38px 0 12px;padding-bottom:8px;border-bottom:2px solid #fed7aa}
.art h2.gloss-h{border-bottom-color:#bfdbfe}
.art p{font-size:16.5px;line-height:1.85;color:#334155;margin:0 0 15px}
.art p strong,.art li strong{color:#0f172a}
.art em{color:#475569;font-style:italic}
.art a{color:#c2410c;text-decoration:none;border-bottom:1px solid rgba(194,65,12,.35)}
.art a:hover{color:#9a3412;border-bottom-color:#9a3412}
.art ul.metrics{list-style:none;padding:0;margin:0 0 20px}
.art ul.metrics li{position:relative;padding:12px 16px 12px 40px;margin:0 0 9px;background:#f8fafc;border:1px solid #e2e8f0;border-left:4px solid #ea580c;border-radius:8px;font-size:16px;line-height:1.7;color:#334155}
.art ul.metrics li:before{content:"";position:absolute;left:17px;top:21px;width:8px;height:8px;border-radius:50%;background:#ea580c}
.art p.gloss{background:#f8fbff;border:1px solid #dbeafe;border-radius:8px;padding:12px 16px;margin:0 0 9px;font-size:15.5px}
@media (max-width:640px){.art p{font-size:16px}.art ul.metrics li{padding-left:34px}}

/*EDU-CSS-v1*/.edu-note{max-width:900px;margin:34px auto;padding:14px 18px;border:1px solid #1f2a44;border-radius:10px;background:#0b1220;color:#94a3b8;font-size:13px;line-height:1.7}.edu-note b{color:#cbd5e1}.edu-note a{color:#fdba74}