:root{
    --blue-950:#220038;
    --blue-900:#31105a;
    --blue-800:#481985;
    --blue-700:#6426a8;
    --blue-600:#7b35d8;
    --blue-500:#965cff;
    --red-700:#8a6500;
    --red-600:#e0a900;
    --red-500:#ffd43b;
    --ink:#111827;
    --muted:#5a6475;
    --soft:#f5f8ff;
    --white:#ffffff;
    --line:#eadcf8;
    --shadow:0 22px 70px rgba(34,0,56,.14);
    --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;text-size-adjust:100%;-webkit-text-size-adjust:100%}
body{
    margin:0;
    font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color:var(--ink);
    background:
        radial-gradient(circle at 7% 4%, rgba(255,212,59,.22), transparent 28rem),
        radial-gradient(circle at 93% 10%, rgba(150,92,255,.18), transparent 28rem),
        linear-gradient(180deg,#ffffff 0%,#f7faff 42%,#ffffff 100%);
    line-height:1.75;
    overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
strong{color:var(--blue-900);font-weight:800}
.skip-link{
    position:absolute;
    left:16px;
    top:-80px;
    background:var(--blue-900);
    color:#fff;
    padding:10px 14px;
    border-radius:12px;
    z-index:10000;
    transition:top .2s ease;
}
.skip-link:focus{top:14px}
.progress-bar{position:fixed;left:0;top:0;width:100%;height:4px;background:transparent;z-index:10001}
.progress-bar span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--red-500),var(--blue-500));box-shadow:0 0 18px rgba(150,92,255,.45)}
.site-header{
    position:sticky;
    top:0;
    z-index:9999;
    height:50px;
    background:rgba(255,255,255,.9);
    border-bottom:1px solid rgba(100,38,168,.14);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
}
.nav-wrap{
    width:min(1500px,calc(100% - 28px));
    height:50px;
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
}
.brand,.footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--blue-950);letter-spacing:-.02em;white-space:nowrap}
.brand img,.footer-brand img{width:34px;height:34px;flex:0 0 auto}
.site-menu{display:flex;align-items:center;gap:6px;height:100%}
.site-menu a{
    display:inline-flex;
    align-items:center;
    min-height:34px;
    padding:6px 12px;
    border-radius:999px;
    color:var(--blue-900);
    font-weight:800;
    font-size:.92rem;
    transition:background .2s ease,color .2s ease,transform .2s ease;
}
.site-menu a:hover,.site-menu a:focus{background:var(--blue-700);color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;width:40px;height:36px;border:1px solid rgba(100,38,168,.18);border-radius:12px;background:#fff;cursor:pointer;padding:8px}
.menu-toggle span{display:block;height:2px;background:var(--blue-900);border-radius:2px;margin:5px 0;transition:.2s ease}
.hero{position:relative;isolation:isolate;padding:80px 0 34px;overflow:hidden;background:linear-gradient(135deg,#ffffff 0%,#f3f7ff 45%,#fff8d8 100%)}
.hero:before{content:"";position:absolute;inset:auto -5% 0 -5%;height:170px;background:linear-gradient(180deg,rgba(255,255,255,0),#fff);z-index:-1}
.hero-bg{position:absolute;z-index:-2;border-radius:999px;filter:blur(10px);opacity:.7}
.hero-bg-one{width:440px;height:440px;left:-110px;top:40px;background:radial-gradient(circle,rgba(255,212,59,.34),transparent 68%)}
.hero-bg-two{width:520px;height:520px;right:-130px;top:0;background:radial-gradient(circle,rgba(150,92,255,.25),transparent 70%)}
.hero-inner{width:min(1500px,calc(100% - 28px));margin:0 auto;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(360px,.78fr);gap:46px;align-items:center}
.eyebrow{display:inline-flex;width:max-content;max-width:100%;align-items:center;gap:8px;margin:0 0 16px;padding:8px 13px;border:1px solid rgba(100,38,168,.16);border-radius:999px;background:rgba(255,255,255,.7);color:var(--blue-800);font-size:.9rem;font-weight:900;box-shadow:0 10px 28px rgba(34,0,56,.06)}
h1{margin:0;color:var(--blue-950);font-size:clamp(2.35rem,5.2vw,5.65rem);line-height:.98;letter-spacing:-.065em;max-width:1050px}
.hero-intro{margin:24px 0 0;max-width:980px;color:#344154;font-size:clamp(1.04rem,1.3vw,1.26rem);line-height:1.78}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.primary-btn,.secondary-btn{
    display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border-radius:16px;font-weight:900;letter-spacing:-.01em;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease
}
.primary-btn{background:linear-gradient(135deg,var(--red-600),var(--blue-600));color:#fff;box-shadow:0 16px 34px rgba(100,38,168,.24)}
.primary-btn:hover,.primary-btn:focus{background:var(--blue-950);transform:translateY(-2px);box-shadow:0 22px 42px rgba(34,0,56,.30)}
.secondary-btn{background:#fff;color:var(--blue-900);border:1px solid rgba(100,38,168,.18)}
.secondary-btn:hover,.secondary-btn:focus{background:var(--blue-700);color:#fff;border-color:var(--blue-700);transform:translateY(-2px)}
.hero-media{position:relative;padding:12px;border-radius:34px;background:linear-gradient(135deg,rgba(255,212,59,.30),rgba(150,92,255,.25));box-shadow:var(--shadow)}
.hero-media img{width:100%;border-radius:24px;filter:drop-shadow(0 20px 35px rgba(34,0,56,.18))}
.trust-strip{width:min(1500px,calc(100% - 28px));margin:0 auto 34px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative;z-index:2}
.trust-item{min-height:96px;padding:20px;border:1px solid rgba(100,38,168,.14);background:rgba(255,255,255,.88);border-radius:22px;box-shadow:0 15px 45px rgba(34,0,56,.08);display:flex;align-items:center;gap:14px}
.trust-item span{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--red-600),var(--blue-600));color:#fff;font-weight:950;flex:0 0 auto}
.trust-item strong{font-size:1rem;color:var(--blue-950)}
.article-layout{width:min(1500px,calc(100% - 28px));margin:0 auto 70px;display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px;align-items:start}
.toc{position:sticky;top:70px;align-self:start}
.toc-card{background:#fff;border:1px solid rgba(100,38,168,.14);border-radius:var(--radius);box-shadow:0 18px 50px rgba(34,0,56,.08);padding:18px;max-height:calc(100vh - 95px);overflow:auto}
.toc-card p{margin:0 0 10px;color:var(--red-700);font-weight:950;font-size:.95rem;text-transform:uppercase;letter-spacing:.06em}
.toc-card a{display:block;padding:9px 10px;margin:2px 0;border-radius:12px;color:#344154;font-weight:780;font-size:.92rem;line-height:1.35;border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease}
.toc-card a:hover,.toc-card a:focus,.toc-card a.active{background:#f6efff;color:var(--blue-800);border-color:rgba(150,92,255,.20)}
.article-card{background:#fff;border:1px solid rgba(100,38,168,.14);border-radius:28px;box-shadow:var(--shadow);padding:clamp(22px,3.2vw,56px);overflow:hidden}
.article-card > .article-text:first-child{font-size:clamp(1.08rem,1.35vw,1.28rem);color:#253044;border-left:6px solid var(--red-600);padding:18px 22px;background:linear-gradient(90deg,#fff8db,#fbf8ff);border-radius:0 20px 20px 0}
.article-heading{scroll-margin-top:74px;margin:58px 0 18px;color:var(--blue-950);font-size:clamp(1.65rem,2.4vw,3rem);line-height:1.12;letter-spacing:-.035em;position:relative;padding-top:14px}
.article-heading:before{content:"";position:absolute;left:0;top:0;width:96px;height:5px;border-radius:999px;background:linear-gradient(90deg,var(--red-600),var(--blue-500))}
.article-text{margin:18px 0;color:#2e3a4c;font-size:clamp(1rem,1.04vw,1.12rem);line-height:1.86}
.article-text a{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;color:var(--blue-700)}
.article-card strong{background:linear-gradient(90deg,rgba(255,212,59,.22),rgba(25,132,255,.12));padding:.02em .22em;border-radius:.35em}
.faq-section{margin-top:64px;padding:clamp(20px,3vw,34px);background:linear-gradient(135deg,#fbf8ff 0%,#fff8db 100%);border:1px solid rgba(100,38,168,.14);border-radius:28px}
.faq-section > .article-heading,.faq-section > h2{margin-top:0}
.faq-item{border:1px solid rgba(100,38,168,.16);border-radius:18px;background:#fff;margin:12px 0;overflow:hidden;box-shadow:0 10px 24px rgba(34,0,56,.05)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;border:0;background:#fff;color:var(--blue-950);padding:18px 20px;text-align:left;font-size:1rem;font-weight:900;line-height:1.42;cursor:pointer;transition:background .2s ease,color .2s ease}
.faq-question:hover,.faq-question:focus{background:#f6efff;color:var(--blue-800);outline:none}
.faq-icon{display:grid;place-items:center;width:32px;height:32px;flex:0 0 auto;border-radius:50%;background:linear-gradient(135deg,var(--red-600),var(--blue-600));color:#fff;font-size:1.25rem;line-height:1;font-weight:950;transition:transform .2s ease}
.faq-question[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 20px 20px;color:#344154;border-top:1px solid rgba(100,38,168,.12)}
.faq-answer[hidden]{display:none}
.faq-text{margin:16px 0 0;font-size:1rem;line-height:1.78}
.site-footer{background:linear-gradient(135deg,var(--blue-950),#0d2d66 55%,#7c0c22);color:#fff;padding:34px 0;margin-top:70px}
.footer-inner{width:min(1500px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-brand{color:#fff}.footer-brand img{filter:drop-shadow(0 6px 16px rgba(34,0,56,.22))}.footer-inner p{margin:0;max-width:680px;color:rgba(255,255,255,.82);line-height:1.65}
.back-to-top{position:fixed;right:18px;bottom:18px;width:50px;height:50px;border:0;border-radius:18px;background:linear-gradient(135deg,var(--red-600),var(--blue-600));box-shadow:0 16px 34px rgba(34,0,56,.24);display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(18px);transition:.2s ease;z-index:9998}
.back-to-top svg{fill:#fff}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover,.back-to-top:focus{background:var(--blue-950);transform:translateY(-2px)}
@media (max-width:1180px){
    .hero-inner{grid-template-columns:1fr}.hero-media{max-width:720px}.article-layout{grid-template-columns:1fr}.toc{position:relative;top:auto}.toc-card{max-height:none}.toc-card a{display:inline-flex;margin:4px 4px 4px 0}.trust-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
    body{line-height:1.68}.brand span{font-size:.9rem;max-width:58vw;overflow:hidden;text-overflow:ellipsis}.menu-toggle{display:block}.site-menu{position:absolute;top:50px;left:14px;right:14px;height:auto;background:#fff;border:1px solid rgba(100,38,168,.16);border-radius:18px;padding:10px;box-shadow:0 20px 45px rgba(34,0,56,.15);display:none;flex-direction:column;align-items:stretch}.site-menu.is-open{display:flex}.site-menu a{justify-content:center;border-radius:12px}.hero{padding:52px 0 24px}.hero-inner{gap:26px}.eyebrow{width:100%;justify-content:center;text-align:center;font-size:.78rem;white-space:normal}.hero-actions{display:grid;grid-template-columns:1fr}.primary-btn,.secondary-btn{width:100%;text-align:center}.trust-strip{grid-template-columns:1fr;margin-bottom:22px}.trust-item{min-height:76px}.article-card{border-radius:22px}.article-card > .article-text:first-child{padding:16px;border-left-width:4px}.article-heading{margin-top:42px}.faq-question{padding:16px;font-size:.95rem}.footer-inner{align-items:flex-start}.back-to-top{width:46px;height:46px;border-radius:16px;right:14px;bottom:14px}
}
@media (max-width:420px){
    .nav-wrap,.hero-inner,.trust-strip,.article-layout,.footer-inner{width:min(100% - 18px,1500px)}h1{font-size:2.18rem}.hero-media{padding:8px}.article-card{padding:18px}.toc-card{padding:14px}.trust-item{padding:16px}.brand span{max-width:52vw}.faq-section{padding:16px;border-radius:22px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}