*{margin:0;padding:0;box-sizing:border-box}
:root{
    --primary:#6366F1;--primary-dark:#4F46E5;--secondary:#8B5CF6;--accent:#10B981;
    --bg:#FAFBFC;--bg-white:#FFFFFF;--text:#111827;--text-secondary:#4B5563;
    --text-muted:#6B7280;--border:#E5E7EB;--border-light:#F3F4F6;
    --card-shadow:0 1px 3px rgba(0,0,0,0.04),0 6px 16px rgba(0,0,0,0.04);
    --card-shadow-hover:0 4px 12px rgba(99,102,241,0.10),0 16px 40px rgba(0,0,0,0.08);
    --radius:18px;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit}
.bg-gradient{position:fixed;inset:0;z-index:-1;overflow:hidden;background:linear-gradient(160deg,#fafbfc 0%,#eef2ff 40%,#f5f3ff 70%,#fafbfc 100%)}
.bg-gradient::before{content:'';position:absolute;width:720px;height:720px;background:radial-gradient(circle,rgba(99,102,241,0.07) 0%,transparent 70%);top:-260px;right:-200px;animation:float 20s ease-in-out infinite}
.bg-gradient::after{content:'';position:absolute;width:520px;height:520px;background:radial-gradient(circle,rgba(139,92,246,0.06) 0%,transparent 70%);bottom:-220px;left:-140px;animation:float 25s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(28px,-38px)}}
header{position:sticky;top:0;z-index:100;padding:0.875rem 2rem;background:rgba(255,255,255,0.85);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid rgba(0,0,0,0.06);display:flex;justify-content:space-between;align-items:center;gap:1rem}
.header-right,.header-actions{display:flex;align-items:center;gap:0.75rem}
.logo{display:inline-flex;align-items:center;gap:0.5rem;white-space:nowrap;font-size:1.35rem;font-weight:800;line-height:1;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}
.logo-img{height:30px;width:auto;display:block;transform:translateY(-2px)}
.lang-switch{display:inline-flex;align-items:center;padding:3px;border-radius:999px;background:rgba(99,102,241,0.08);border:1px solid rgba(99,102,241,0.12)}
.lang-switch a{display:inline-flex;align-items:center;justify-content:center;height:32px;min-width:42px;padding:0 0.65rem;border-radius:999px;text-decoration:none;font-weight:700;font-size:0.82rem;letter-spacing:0.02em;color:var(--primary);transition:all 0.15s ease}
.lang-switch a:hover{background:rgba(99,102,241,0.12)}
.lang-switch a.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 2px 8px rgba(99,102,241,0.3)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 1.45rem;border-radius:12px;font-weight:600;font-size:0.95rem;text-decoration:none;transition:all 0.2s ease;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 4px 14px rgba(99,102,241,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(99,102,241,0.4)}
.btn-secondary{background:#fff;color:var(--text);border:1.5px solid var(--border);box-shadow:var(--card-shadow)}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--card-shadow-hover)}
.btn-ghost{color:var(--primary);background:none;padding:0.5rem 0.75rem;font-weight:600;text-decoration:none;white-space:nowrap}
.btn-ghost:hover{background:rgba(99,102,241,0.06);border-radius:10px}
.page-shell{max-width:1120px;margin:0 auto;padding:0 2rem}
.hero-page{padding:4rem 0 2.5rem}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:0.5rem;color:var(--text-muted);font-size:0.92rem;margin-bottom:1.25rem}
.breadcrumbs a{text-decoration:none;color:var(--text-secondary)}
.page-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:rgba(99,102,241,0.08);border:1px solid rgba(99,102,241,0.15);border-radius:999px;font-size:0.82rem;font-weight:600;color:var(--primary);margin-bottom:1.25rem}
.hero-page h1{font-size:clamp(2.15rem,5vw,3.3rem);font-weight:800;line-height:1.08;letter-spacing:-0.03em;margin-bottom:1rem;max-width:900px}
.hero-page .lead{font-size:1.12rem;color:var(--text-secondary);max-width:760px;margin-bottom:1.5rem}
.hero-actions{display:flex;gap:0.75rem;flex-wrap:wrap;margin-top:1.5rem}
.inline-nav{display:flex;flex-wrap:wrap;gap:0.75rem;margin-top:1.75rem}
.inline-nav a{padding:0.55rem 0.9rem;background:rgba(255,255,255,0.78);border:1px solid var(--border);border-radius:999px;text-decoration:none;font-size:0.9rem;color:var(--text-secondary);box-shadow:var(--card-shadow)}
.inline-nav a:hover{color:var(--primary);border-color:rgba(99,102,241,0.2)}
section{padding:2rem 0 0}
.content-section{padding:2rem 0}
.section-header{margin-bottom:1.5rem}
.section-label{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;background:rgba(99,102,241,0.07);border:1px solid rgba(99,102,241,0.12);border-radius:999px;font-size:0.78rem;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:1rem}
.section-title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:0.7rem}
.section-subtitle{max-width:720px;color:var(--text-secondary);font-size:1.03rem}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.1rem}
.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:rgba(255,255,255,0.92);border:1px solid var(--border);border-radius:var(--radius);padding:1.45rem;box-shadow:var(--card-shadow);transition:all 0.25s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--card-shadow-hover);border-color:rgba(99,102,241,0.2)}
.card h3{font-size:1.06rem;margin-bottom:0.55rem}
.card p,.card li{color:var(--text-secondary);font-size:0.96rem}
.card ul{padding-left:1.1rem;margin-top:0.65rem}
.card li+li{margin-top:0.45rem}
.callout{background:linear-gradient(135deg,#ECFDF5,#D1FAE5);border:1.5px solid #6EE7B7;border-radius:20px;padding:1.6rem 1.7rem;box-shadow:var(--card-shadow)}
.callout h3{font-size:1.15rem;color:#065F46;margin-bottom:0.55rem}
.callout p,.callout li{color:#047857}
.article-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(280px,0.9fr);gap:1.25rem;align-items:start}
.prose{background:rgba(255,255,255,0.94);border:1px solid var(--border);border-radius:24px;padding:1.8rem;box-shadow:var(--card-shadow)}
.prose h2{font-size:1.55rem;margin:1.75rem 0 0.7rem;letter-spacing:-0.02em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.12rem;margin:1rem 0 0.45rem}
.prose p{color:var(--text-secondary);margin-bottom:1rem}
.prose ul,.prose ol{padding-left:1.15rem;color:var(--text-secondary);margin:0.7rem 0 1rem}
.prose li+li{margin-top:0.45rem}
.sidebar{display:flex;flex-direction:column;gap:1rem}
.stat-card{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-radius:22px;padding:1.4rem;box-shadow:0 10px 30px rgba(99,102,241,0.24)}
.stat-card .stat-value{font-size:2rem;font-weight:800;line-height:1.1;margin-bottom:0.35rem}
.stat-card p,.stat-card li{color:rgba(255,255,255,0.88)}
.stat-card ul{padding-left:1rem;margin-top:0.7rem}
.link-list{display:flex;flex-direction:column;gap:0.65rem}
.link-list a{text-decoration:none;padding:0.9rem 1rem;background:rgba(255,255,255,0.94);border:1px solid var(--border);border-radius:16px;box-shadow:var(--card-shadow);color:var(--text)}
.link-list a span{display:block;color:var(--text-secondary);font-size:0.9rem;margin-top:0.25rem}
.link-list a:hover{border-color:rgba(99,102,241,0.24);color:var(--primary)}
.faq-list{display:flex;flex-direction:column;gap:0.9rem}
.faq-item{background:rgba(255,255,255,0.92);border:1px solid var(--border);border-radius:18px;padding:0 1.1rem;box-shadow:var(--card-shadow)}
.faq-question{width:100%;padding:1.1rem 0;border:none;background:none;text-align:left;font:inherit;font-weight:700;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.faq-question::after{content:'+';font-size:1.25rem;color:var(--primary)}
.faq-item.active .faq-question::after{content:'−'}
.faq-answer{max-height:0;overflow:hidden;color:var(--text-secondary);transition:max-height 0.3s ease,padding 0.3s ease}
.faq-item.active .faq-answer{max-height:280px;padding-bottom:1rem}
.cta-band{margin:2rem 0 0;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-radius:28px;padding:2rem;box-shadow:0 16px 44px rgba(99,102,241,0.25)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:0.75rem}
.cta-band p{color:rgba(255,255,255,0.86);max-width:700px}
.cta-band .hero-actions{margin-top:1.25rem}
.cta-band .btn-primary{background:#fff;color:var(--primary)}
footer{background:#111827;color:#fff;padding:3rem 2rem 1.5rem;margin-top:3rem}
.footer-content{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer-brand .logo{font-size:1.2rem}
.footer-brand p{color:#9CA3AF;margin-top:0.75rem;font-size:0.9rem;line-height:1.6}
.footer-col h4{margin-bottom:0.75rem;font-size:0.8rem;color:#6B7280;text-transform:uppercase;letter-spacing:0.08em;font-weight:700}
.footer-col a{display:block;color:#9CA3AF;text-decoration:none;font-size:0.9rem;margin-bottom:0.5rem}
.footer-col a:hover{color:#fff}
.copyright{text-align:center;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,0.06);color:#4B5563;font-size:0.78rem}
.reveal{opacity:1;transform:none}
html.reveal-ready .reveal{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}
html.reveal-ready .reveal.visible{opacity:1;transform:translateY(0)}
@media(max-width:1024px){.article-layout{grid-template-columns:1fr}.card-grid,.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{order:-1}}
@media(max-width:768px){header{padding:0.75rem 1rem}.page-shell{padding:0 1.25rem}.hero-page{padding:2.75rem 0 1.5rem}.hero-page h1{font-size:1.95rem;line-height:1.15}.hero-page .lead{font-size:0.98rem}.card-grid,.card-grid.two{grid-template-columns:1fr}.card:hover{transform:none;box-shadow:var(--card-shadow)}.prose{padding:1.25rem}.aligned-card,.resource-card{display:grid;grid-template-columns:50px 1fr;grid-template-areas:'icon title' 'icon desc';column-gap:1rem;row-gap:0.25rem;padding:1.1rem 1.15rem 1.1rem 1.35rem}.aligned-card .feature-icon,.resource-card .feature-icon{grid-area:icon;width:50px;height:50px;border-radius:13px;align-self:start}.aligned-card h3,.resource-card h3{grid-area:title;font-size:0.97rem;margin:0;align-self:start}.aligned-card p,.resource-card p{grid-area:desc;font-size:0.88rem;margin:0;align-self:start}.cta-band{padding:1.45rem;border-radius:22px}.footer-content{grid-template-columns:1fr;gap:1.4rem;text-align:center}.footer-col a{display:inline;margin:0 0.4rem}.btn-ghost{display:none}}
@media(max-width:420px){.logo span{display:none}.inline-nav{gap:0.5rem}.inline-nav a{font-size:0.84rem;padding:0.5rem 0.75rem}}