:root{
  --navy-900:#081428;--navy-800:#0b1e3b;--navy-700:#122a52;--navy-600:#1c3a6e;
  --gold-1:#e7c86a;--gold-2:#c8a24a;--gold-3:#a17c2f;
  --white:#ffffff;--cream:#f7f5ef;--ink:#0d1526;--muted:#6b7688;
  --gold-grad:linear-gradient(135deg,#e7c86a 0%,#c8a24a 45%,#a17c2f 100%);
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:19px}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto !important}
.lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}
.lenis.lenis-stopped{overflow:hidden}
body{font-family:'Kanit',sans-serif;color:var(--ink);background:var(--white);font-weight:300;line-height:1.65;overflow-x:hidden}
h1,h2,h3,h4{font-weight:500;line-height:1.15;letter-spacing:.2px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1240px,92%);margin-inline:auto}
.eyebrow{font-size:.78rem;letter-spacing:.28em;text-transform:uppercase;font-weight:500;color:var(--gold-2);margin-bottom:18px;display:inline-block}
.gold-text{background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:2px;font-weight:500;font-size:.92rem;letter-spacing:.04em;cursor:pointer;transition:.4s var(--ease);border:1px solid transparent;font-family:inherit}
.btn-gold{background:var(--gold-grad);color:var(--navy-900)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(200,162,74,.35)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-outline-navy{border-color:var(--navy-800);color:var(--navy-800)}
.btn-outline-navy:hover{background:var(--navy-800);color:#fff}

/* NAV */
header.nav{position:fixed;top:0;left:0;width:100%;z-index:100;padding:22px 0;transition:.45s var(--ease)}
header.nav.scrolled{background:rgba(8,20,40,.92);backdrop-filter:blur(12px);padding:14px 0;box-shadow:0 10px 40px rgba(0,0,0,.25)}
header.nav.solid{background:rgba(8,20,40,.96);backdrop-filter:blur(12px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;padding:0 30px 0 22px}
.nav-logo img{height:74px;transition:.4s var(--ease)}
header.nav.scrolled .nav-logo img{height:58px}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:#fff;font-size:1.02rem;font-weight:300;letter-spacing:.02em;position:relative;padding:4px 0;opacity:.9;transition:.3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--gold-grad);transition:.35s var(--ease)}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:18px;position:relative;z-index:110}
.lang-toggle{display:flex;border:1px solid rgba(255,255,255,.28);border-radius:2px;overflow:hidden}
.lang-toggle button{background:transparent;border:0;color:#fff;font-family:inherit;padding:7px 12px;font-size:.78rem;cursor:pointer;opacity:.6;transition:.3s;letter-spacing:.08em}
.lang-toggle button.active{background:var(--gold-grad);color:var(--navy-900);opacity:1;font-weight:500}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;position:relative;z-index:130}
.burger span{width:26px;height:2px;background:#fff;transition:.3s;transform-origin:center}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.book-tab{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:120;writing-mode:vertical-rl;text-orientation:mixed;background:var(--gold-grad);color:var(--navy-900);padding:26px 14px;border-radius:8px 0 0 8px;font-weight:600;font-size:1rem;letter-spacing:.14em;cursor:pointer;display:flex;align-items:center;gap:12px;box-shadow:-8px 0 26px rgba(8,20,40,.3);transition:.4s var(--ease)}
.book-tab:hover{padding-right:20px;box-shadow:-10px 0 34px rgba(200,162,74,.45)}
.book-tab .dot{width:8px;height:8px;border-radius:50%;background:var(--navy-900);opacity:.7}

/* HERO */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:center;overflow:hidden}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transform:translateZ(0)}
.hero .overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(8,20,40,.9) 0%,rgba(8,20,40,.6) 45%,rgba(8,20,40,.25) 100%),linear-gradient(0deg,rgba(8,20,40,.85) 0%,rgba(8,20,40,0) 40%)}
.hero-content{position:relative;z-index:2;color:#fff;max-width:min(1520px,95vw);padding-left:clamp(22px,2.4vw,52px);padding-right:24px}
.hero-content h1{font-size:clamp(2.3rem,5vw,4.4rem);font-weight:600;margin:20px 0 24px}
.hero-content h1 .nw{white-space:nowrap}
.hero-content p{font-size:clamp(1.05rem,1.6vw,1.3rem);font-weight:200;opacity:.9;max-width:680px;margin-bottom:38px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2;color:#fff;font-size:.72rem;letter-spacing:.3em;text-transform:uppercase;opacity:.7;text-align:center}
.scroll-cue span{display:block;width:1px;height:44px;background:linear-gradient(#fff,transparent);margin:12px auto 0}

/* page hero (inner pages) */
.page-hero{position:relative;min-height:56vh;display:flex;align-items:flex-end;overflow:hidden;color:#fff}
.page-hero .imgslot{position:absolute;inset:0}
.page-hero .veil{position:absolute;inset:0;z-index:2;background:linear-gradient(0deg,rgba(8,20,40,.94),rgba(8,20,40,.5) 60%,rgba(8,20,40,.6))}
.page-hero .container{position:relative;z-index:3;padding-bottom:64px}
.page-hero h1{font-size:clamp(2.2rem,4.4vw,3.6rem);margin-top:14px}
.page-hero p{font-weight:200;opacity:.9;max-width:640px;margin-top:16px}
.crumb{font-size:.82rem;opacity:.7;letter-spacing:.03em}
.crumb a:hover{color:var(--gold-1)}

section{padding:110px 0}
.section-head{max-width:720px;margin-bottom:56px}
.section-head h2{font-size:clamp(1.9rem,3.4vw,2.9rem);color:var(--navy-800)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head p{color:var(--muted);font-size:1.06rem;margin-top:18px;font-weight:300}

/* ABOUT */
.about{background:var(--cream)}
.about-grid{display:grid;grid-template-columns:1fr 1.12fr;gap:60px;align-items:center}
.about-copy h2{font-size:clamp(1.9rem,3.2vw,2.7rem);color:var(--navy-800);margin-bottom:24px}
.about-copy p{color:#43506a;margin-bottom:18px;font-weight:300}
.about-points{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.about-points span{border:1px solid rgba(28,58,110,.2);border-radius:2px;padding:9px 16px;font-size:.82rem;color:var(--navy-700);letter-spacing:.02em}
.about-visual{position:relative;aspect-ratio:1666/1080;border-radius:6px;overflow:hidden;box-shadow:0 30px 80px rgba(8,20,40,.22)}
.about-visual .imgslot{height:100%}
.about-visual .imgslot img{object-position:center}

.imgslot{background:linear-gradient(135deg,var(--navy-700),var(--navy-900));position:relative;overflow:hidden;display:flex;align-items:flex-end}
.imgslot img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.imgslot::before{content:attr(data-label);position:absolute;top:14px;left:14px;z-index:2;font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(231,200,106,.75);border:1px dashed rgba(231,200,106,.35);padding:4px 8px;border-radius:2px;pointer-events:none}
.imgslot::after{content:"";position:absolute;inset:0;z-index:1;background:radial-gradient(circle at 70% 20%,rgba(200,162,74,.18),transparent 60%)}
.imgslot.loaded::before{content:none}

/* PILLARS */
.pillars-container{width:min(1480px,95%);margin-inline:auto}
.pillars-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.pillar{position:relative;border-radius:6px;overflow:hidden;min-height:540px;display:flex;align-items:flex-end;color:#fff;box-shadow:0 24px 60px rgba(8,20,40,.18)}
.pillar .imgslot{position:absolute;inset:0}
.pillar .pillar-body{position:relative;z-index:3;padding:52px}
.pillar .veil{position:absolute;inset:0;z-index:2;background:linear-gradient(0deg,rgba(8,20,40,.92) 5%,rgba(8,20,40,.35) 60%,rgba(8,20,40,.15) 100%)}
.pillar h3{font-size:1.7rem;margin-bottom:12px}
.pillar p{font-weight:200;opacity:.85;font-size:.96rem;margin-bottom:20px}
.pillar .tags{display:flex;flex-wrap:wrap;gap:8px}
.pillar .tags span{font-size:.72rem;border:1px solid rgba(231,200,106,.4);color:var(--gold-1);padding:5px 10px;border-radius:2px}
.pillar .go{margin-top:22px;display:inline-flex;align-items:center;gap:8px;color:var(--gold-1);font-size:.85rem;letter-spacing:.06em}

/* SERVICES GRID */
.services{background:var(--navy-900);color:#fff}
.services .section-head h2{color:#fff}
.services .section-head p{color:rgba(255,255,255,.6)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc-card{display:block;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:4px;overflow:hidden;transition:.5s var(--ease)}
.svc-card:hover{transform:translateY(-8px);border-color:rgba(231,200,106,.5);background:rgba(255,255,255,.05)}
.svc-card .imgslot{aspect-ratio:16/10}
.svc-card .svc-body{padding:24px 24px 30px}
.svc-num{font-size:.72rem;color:var(--gold-2);letter-spacing:.2em}
.svc-card h3{font-size:1.18rem;margin:10px 0 8px;color:#fff}
.svc-card p{font-size:.86rem;color:rgba(255,255,255,.6);font-weight:200}
.svc-card .more{display:inline-block;margin-top:14px;color:var(--gold-1);font-size:.8rem;letter-spacing:.05em}

/* SERVICE DETAIL */
.svc-detail{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.svc-detail .lead{font-size:1.15rem;color:#33405a;font-weight:300;margin-bottom:26px}
.svc-detail h3{color:var(--navy-800);margin:30px 0 14px;font-size:1.3rem}
.svc-points{list-style:none;display:grid;gap:14px;margin-top:10px}
.svc-points li{position:relative;padding-left:30px;color:#43506a;font-weight:300}
.svc-points li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;background:var(--gold-grad)}
.svc-aside{position:sticky;top:110px;background:var(--navy-800);color:#fff;border-radius:6px;padding:38px;box-shadow:0 24px 60px rgba(8,20,40,.2)}
.svc-aside h4{font-size:1.1rem;margin-bottom:10px}
.svc-aside p{font-weight:200;opacity:.8;font-size:.92rem;margin-bottom:22px}
.svc-aside .btn{width:100%;justify-content:center}
.other-svc{background:var(--cream)}
.chip-grid{display:flex;flex-wrap:wrap;gap:12px}
.chip-grid a{border:1px solid rgba(28,58,110,.2);border-radius:40px;padding:10px 20px;font-size:.9rem;color:var(--navy-700);transition:.3s}
.chip-grid a:hover{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}

/* TEAM / PHILOSOPHY (about page) */
.philosophy{background:var(--navy-900);color:#fff}
.phil-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:20px}
.phil-card{border:1px solid rgba(255,255,255,.1);border-radius:5px;padding:34px;transition:.4s var(--ease)}
.phil-card:hover{border-color:rgba(231,200,106,.5);transform:translateY(-6px)}
.phil-card .n{font-size:.8rem;color:var(--gold-2);letter-spacing:.2em}
.phil-card h3{color:#fff;margin:12px 0 10px;font-size:1.25rem}
.phil-card p{color:rgba(255,255,255,.65);font-weight:200;font-size:.92rem}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.team-card .imgslot{aspect-ratio:3/4;border-radius:5px}
.team-card h4{margin-top:16px;color:var(--navy-800);font-size:1.1rem}
.team-card span{color:var(--gold-3);font-size:.85rem}

/* CALC */
.calc{background:var(--cream)}
.calc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:6px;overflow:hidden;box-shadow:0 34px 90px rgba(8,20,40,.18)}
.calc-left{background:var(--gold-grad);padding:64px;color:var(--navy-900)}
.calc-left h2{font-size:clamp(1.7rem,2.8vw,2.4rem);margin-bottom:18px}
.calc-left p{font-weight:300;margin-bottom:30px;color:#3a2f14}
.calc-right{background:var(--navy-800);padding:64px;color:#fff;display:flex;flex-direction:column;justify-content:center}
.calc-field{margin-bottom:22px}
.calc-field label{display:block;font-size:.8rem;letter-spacing:.05em;color:rgba(255,255,255,.6);margin-bottom:8px}
.calc-field input{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:2px;padding:13px 16px;color:#fff;font-family:inherit;font-size:1rem}
.calc-field input:focus{outline:none;border-color:var(--gold-2)}
.calc-result{margin-top:12px;padding:20px;border:1px dashed rgba(231,200,106,.4);border-radius:3px}
.calc-result .num{font-size:1.9rem;font-weight:600;color:var(--gold-1)}
.calc-result small{color:rgba(255,255,255,.55)}

/* CONTACT FORM */
.contact{background:var(--navy-900);color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.contact-info h2{font-size:clamp(1.9rem,3.4vw,2.8rem);margin-bottom:20px}
.contact-info p{opacity:.75;font-weight:200;margin-bottom:26px;max-width:420px}
.contact-info .row{display:flex;gap:12px;margin-bottom:14px;font-weight:200;opacity:.85}
.contact-info .row b{color:var(--gold-1);font-weight:500;min-width:90px}
.form-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:40px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field.full{grid-column:1/-1}
.field label{display:block;font-size:.8rem;letter-spacing:.04em;color:rgba(255,255,255,.6);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:3px;padding:13px 15px;color:#fff;font-family:inherit;font-size:.98rem}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold-2)}
.field select option{color:#000}
.form-msg{margin-top:14px;font-size:.9rem;min-height:22px}
.form-msg.ok{color:var(--gold-1)}
.form-msg.err{color:#ff9a9a}

/* CTA */
.cta-band{background:linear-gradient(120deg,var(--navy-900),var(--navy-700));color:#fff;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 120%,rgba(200,162,74,.25),transparent 55%)}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{font-size:clamp(2rem,3.6vw,3rem);margin-bottom:20px}
.cta-band p{opacity:.8;max-width:560px;margin:0 auto 36px;font-weight:200}

/* FOOTER */
footer{background:var(--navy-900);color:rgba(255,255,255,.7);padding:80px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:54px}
.foot-logo img{height:52px;margin-bottom:20px}
.foot-col h4{color:#fff;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:20px;font-weight:500}
.foot-col a{display:block;font-size:.9rem;margin-bottom:12px;opacity:.7;transition:.3s;font-weight:200}
.foot-col a:hover{opacity:1;color:var(--gold-1);padding-left:4px}
.foot-disclaimer{font-size:.76rem;line-height:1.8;opacity:.45;border-top:1px solid rgba(255,255,255,.1);padding-top:26px;font-weight:200}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-top:22px;font-size:.78rem;opacity:.5}

.reveal{opacity:0;transform:translateY(40px)}

@media(max-width:960px){
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(320px,80%);height:100vh;background:rgba(8,20,40,.98);flex-direction:column;justify-content:center;gap:26px;transform:translateX(100%);transition:.5s var(--ease);padding:40px;z-index:100}
  .nav-links.open{transform:translateX(0)}
  .burger{display:flex}
  .about-grid,.pillars-grid,.calc-wrap,.svc-detail,.contact-grid{grid-template-columns:1fr}
  .svc-grid,.phil-grid,.team-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .calc-left,.calc-right{padding:44px}
  .svc-aside{position:static}
  section{padding:78px 0}
}
@media(max-width:560px){
  .svc-grid,.phil-grid,.team-grid,.foot-grid,.fgrid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column;align-items:stretch}
}
.nav-logo img,.foot-logo img{filter:brightness(1.2)}
.section-head.pillars-head{max-width:1100px}

/* ===== INSIGHTS (article list) ===== */
.ins-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.ins-card{display:block;background:#fff;border:1px solid #e6e3da;border-radius:8px;overflow:hidden;transition:.4s var(--ease);box-shadow:0 10px 30px rgba(8,20,40,.06)}
.ins-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(8,20,40,.14)}
.ins-cover{height:150px;position:relative;display:flex;align-items:flex-end;padding:16px}
.ins-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 15%,rgba(231,200,106,.22),transparent 60%)}
.ins-cover .cat{position:relative;z-index:2;color:#fff;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500}
.ins-cover.structure{background:linear-gradient(135deg,#122a52,#0b1e3b)}
.ins-cover.family{background:linear-gradient(135deg,#1c3a6e,#0b1e3b)}
.ins-cover.governance{background:linear-gradient(135deg,#274b86,#122a52)}
.ins-cover.tax{background:linear-gradient(135deg,#a17c2f,#0b1e3b)}
.ins-cover.exit{background:linear-gradient(135deg,#c8a24a,#122a52)}
.ins-body{padding:22px 22px 26px}
.ins-body h3{color:var(--navy-800);font-size:1.12rem;margin-bottom:10px;line-height:1.32}
.ins-body p{color:var(--muted);font-size:.89rem;font-weight:300}
.ins-meta{margin-top:14px;font-size:.75rem;color:#b0a894;letter-spacing:.03em}
.ins-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.ins-filter button{border:1px solid rgba(28,58,110,.2);background:#fff;color:var(--navy-700);border-radius:30px;padding:8px 18px;font-family:inherit;font-size:.85rem;cursor:pointer;transition:.3s}
.ins-filter button.active,.ins-filter button:hover{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}

/* ===== ARTICLE ===== */
.article-wrap{max-width:820px;margin:0 auto;padding:0 20px}
.article-head{padding:132px 0 26px;text-align:center}
.article-head .cat{color:var(--gold-2);font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500}
.article-head h1{color:var(--navy-800);font-size:clamp(1.9rem,4vw,2.9rem);margin:16px 0 14px;line-height:1.2}
.article-head .meta{color:var(--muted);font-size:.85rem}
.article-body{font-size:1.06rem;color:#2a3547;line-height:1.85;font-weight:300;padding-bottom:40px}
.article-body h2{color:var(--navy-800);font-size:1.5rem;margin:34px 0 14px;font-weight:600}
.article-body h3{color:var(--navy-700);font-size:1.2rem;margin:26px 0 10px}
.article-body p{margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 18px 22px}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--navy-800);font-weight:600}
.article-body blockquote{border-left:3px solid var(--gold-2);background:var(--cream);padding:16px 22px;border-radius:0 6px 6px 0;margin:24px 0;color:var(--navy-800);font-weight:400}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.95rem}
.article-body th,.article-body td{border:1px solid #e0dccf;padding:10px 14px;text-align:left}
.article-body th{background:var(--navy-800);color:#fff;font-weight:500}
.article-body tr:nth-child(even) td{background:#faf9f5}
.article-body .mermaid{margin:26px 0;text-align:center;background:#fbfaf6;border:1px solid #eee7d6;border-radius:8px;padding:18px}
.article-body .katex-display{margin:22px 0;overflow-x:auto;overflow-y:hidden}
.article-back{display:inline-block;margin:6px 0 64px;color:var(--gold-3);font-weight:500}
@media(max-width:960px){ .ins-grid{grid-template-columns:1fr 1fr} }
@media(max-width:560px){ .ins-grid{grid-template-columns:1fr} }

/* ===== ARTICLE — premium redesign ===== */
#readbar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--gold-grad);z-index:200;transition:width .1s linear}
.art-hero{background:linear-gradient(150deg,var(--navy-900),var(--navy-700));color:#fff;padding:150px 0 60px;position:relative;overflow:hidden}
.art-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 0%,rgba(200,162,74,.22),transparent 55%);pointer-events:none}
.art-hero-inner{max-width:820px;margin:0 auto;padding:0 24px;position:relative;z-index:2}
.art-hero .cat{display:inline-block;border:1px solid rgba(231,200,106,.5);color:var(--gold-1);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;padding:6px 14px;border-radius:30px;margin-bottom:22px}
.art-hero h1{font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.18;font-weight:600;margin-bottom:20px}
.art-hero .art-lead{font-size:clamp(1.08rem,1.7vw,1.28rem);font-weight:200;opacity:.9;line-height:1.6;max-width:680px}
.art-hero .meta{margin-top:26px;font-size:.82rem;letter-spacing:.04em;opacity:.7;display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.art-hero .meta .dot{width:4px;height:4px;border-radius:50%;background:var(--gold-2)}

.article-wrap{max-width:820px;margin:0 auto;padding:0 24px}
.article-body{font-size:1.13rem;color:#25303f;line-height:1.9;font-weight:300;padding:52px 0 20px}
.article-body > p:first-of-type{font-size:1.24rem;line-height:1.75;color:#1c2634;font-weight:300}
.article-body h2{color:var(--navy-800);font-size:1.62rem;font-weight:600;margin:48px 0 16px;padding-top:22px;border-top:1px solid #ece7da;position:relative}
.article-body h2::before{content:"";position:absolute;top:-1px;left:0;width:54px;height:3px;background:var(--gold-grad)}
.article-body h3{color:var(--navy-700);font-size:1.24rem;font-weight:600;margin:30px 0 10px}
.article-body p{margin-bottom:20px}
.article-body ul,.article-body ol{margin:0 0 22px 6px;padding-left:22px}
.article-body li{margin-bottom:11px;padding-left:4px}
.article-body li::marker{color:var(--gold-2)}
.article-body strong{color:var(--navy-800);font-weight:600}
.article-body a{color:var(--gold-3);border-bottom:1px solid rgba(161,124,47,.3)}
.article-body blockquote{border:0;border-left:4px solid var(--gold-2);background:linear-gradient(120deg,#fdf8ec,#f7f5ef);padding:22px 26px;border-radius:0 8px 8px 0;margin:32px 0;color:var(--navy-800);font-weight:400;font-size:1.08rem;box-shadow:0 12px 30px rgba(200,162,74,.12)}
.article-body blockquote strong{color:var(--gold-3)}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:.98rem;border:1px solid #e6e0d2;border-radius:10px;overflow:hidden;box-shadow:0 10px 26px rgba(8,20,40,.06)}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid #eee7d6}
.article-body th{background:var(--navy-800);color:#fff;font-weight:500;letter-spacing:.02em}
.article-body td{color:#3a4655}
.article-body tr:last-child td{border-bottom:0}
.article-body tr:nth-child(even) td{background:#faf8f2}
.article-body .mermaid{margin:30px 0;text-align:center;background:#fbfaf6;border:1px solid #ece5d3;border-radius:12px;padding:26px 18px;box-shadow:0 12px 30px rgba(8,20,40,.05)}
.article-body .katex-display{margin:26px 0;padding:20px;background:#0b1e3b;border-radius:10px;overflow-x:auto;overflow-y:hidden}
.article-body .katex-display .katex{color:#fff;font-size:1.15em}
.art-cta{margin:44px 0 10px;background:linear-gradient(120deg,var(--navy-900),var(--navy-700));border-radius:14px;padding:38px 40px;color:#fff;text-align:center;position:relative;overflow:hidden}
.art-cta::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 130%,rgba(200,162,74,.28),transparent 55%)}
.art-cta h3{position:relative;z-index:2;font-size:1.4rem;margin-bottom:10px}
.art-cta p{position:relative;z-index:2;opacity:.82;font-weight:200;margin-bottom:22px;font-size:.98rem}
.art-cta .btn{position:relative;z-index:2}
.art-related{margin:56px 0 30px}
.art-related h4{color:var(--navy-800);font-size:1.15rem;margin-bottom:20px;letter-spacing:.02em}
.art-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-back{display:inline-block;margin:8px 0 70px;color:var(--gold-3);font-weight:500}
@media(max-width:700px){ .article-body{font-size:1.06rem} .art-related-grid{grid-template-columns:1fr} }