*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1a1a2e;line-height:1.6}
nav{background:#fff;border-bottom:1px solid #e5e7eb;padding:16px 24px;position:sticky;top:0;z-index:100}
.nav-inner{max-width:960px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.logo{font-size:20px;font-weight:700;color:#1a56db;text-decoration:none}
.nav-links{display:flex;gap:24px}
.nav-links a{color:#4b5563;text-decoration:none;font-size:15px}
.nav-links a:hover{color:#1a56db}
.hero{text-align:center;padding:80px 24px 60px;background:linear-gradient(135deg,#1a56db 0%,#1e3a8a 100%);color:#fff}
.hero h1{font-size:2.5rem;line-height:1.2;margin-bottom:20px}
.hero-sub{font-size:1.1rem;max-width:600px;margin:0 auto 32px;opacity:.9}
.cta-btn{display:inline-block;background:#fff;color:#1a56db;padding:14px 32px;border-radius:8px;text-decoration:none;font-weight:600;font-size:16px;transition:transform .2s}
.cta-btn:hover{transform:translateY(-2px)}
.features{max-width:960px;margin:0 auto;padding:60px 24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px}
.feature{padding:24px;border-radius:12px;background:#f9fafb}
.feature h3{color:#1a56db;margin-bottom:8px;font-size:18px}
.feature p{color:#4b5563;font-size:15px}
.topics{max-width:960px;margin:0 auto;padding:0 24px 60px;text-align:center}
.topics h2{margin-bottom:24px;font-size:1.5rem}
.topics ul{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.topics li{background:#eff6ff;color:#1e40af;padding:8px 18px;border-radius:20px;font-size:14px;font-weight:500}
.cta-section{text-align:center;padding:60px 24px;background:#f9fafb}
.cta-section h2{margin-bottom:12px;font-size:1.5rem}
.cta-section p{max-width:560px;margin:0 auto 28px;color:#4b5563}
.cta-section .cta-btn{background:#1a56db;color:#fff}
footer{padding:40px 24px;border-top:1px solid #e5e7eb;text-align:center}
.footer-inner{max-width:960px;margin:0 auto}
.footer-links{display:flex;justify-content:center;gap:24px;margin-bottom:16px;flex-wrap:wrap}
.footer-links a{color:#6b7280;text-decoration:none;font-size:14px}
.footer-links a:hover{color:#1a56db}
footer p{color:#9ca3af;font-size:13px}
.page{max-width:720px;margin:0 auto;padding:48px 24px 80px}
.page h1{font-size:1.8rem;margin-bottom:8px}
.page .updated{color:#6b7280;font-size:14px;margin-bottom:32px}
.page h2{font-size:1.2rem;margin-top:32px;margin-bottom:12px;color:#1e3a8a}
.page h3{font-size:1rem;margin-top:20px;margin-bottom:8px}
.page p,.page li{color:#374151;font-size:15px;margin-bottom:8px}
.page ul{padding-left:24px;margin-bottom:16px}
.faq-item{background:#f9fafb;border-radius:8px;margin:12px 0;overflow:hidden}
.faq-q{padding:16px 20px;cursor:pointer;font-weight:500;display:flex;justify-content:space-between;align-items:center}
.faq-q:hover{background:#f3f4f6}
.faq-a{padding:0 20px 16px;display:none}
.faq-a.open{display:block}
.contact-box{background:#eff6ff;border-radius:12px;padding:32px;text-align:center;margin-top:40px}
.contact-box a{color:#1a56db;font-weight:600}
.lang-switcher{text-align:center;padding:8px;background:#f0f0f0;font-size:13px}
.lang-switcher a{margin:0 6px;color:#1a56db;text-decoration:none}
.lang-switcher a:hover{text-decoration:underline}
.lang-switcher .current{font-weight:700;color:#1a1a2e}
@media(max-width:600px){.hero h1{font-size:1.6rem}.hero{padding:48px 20px 40px}.nav-links{gap:16px}.nav-links a{font-size:13px}}