:root{
  --ink:#171a2b;--muted:#667085;--line:#e7e9f0;--bg:#f6f7fb;
  --card:#fff;--brand:#5b4cf0;--brand2:#7c3aed;--green:#12a46b;
  --shadow:0 12px 35px rgba(28,31,55,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.72}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1280px,94%);margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:900;color:var(--ink);letter-spacing:-.4px;white-space:nowrap}.brand img{width:40px;height:40px;display:block;border-radius:10px;object-fit:cover}.brand-name span{color:var(--brand)}
.brand span{color:var(--brand)}
nav{display:flex;align-items:center;gap:4px}
nav a{display:inline-flex;align-items:center;gap:7px;color:#4b5565;font-weight:750;padding:9px 10px;border-radius:9px;font-size:.92rem;white-space:nowrap}.nav-icon{display:inline-flex;width:18px;height:18px;align-items:center;justify-content:center}.nav-icon svg{width:18px;height:18px;fill:currentColor}
nav a:hover{background:#f1efff;color:var(--brand);text-decoration:none}
main{min-height:70vh}
.hero{padding:72px 0 55px;background:radial-gradient(circle at 80% 10%,#e8e5ff 0,transparent 32%),linear-gradient(135deg,#fbfbff,#f0f1ff)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-weight:850;text-transform:uppercase;letter-spacing:.08em;font-size:.76rem}
h1{font-size:clamp(2.35rem,5vw,4.5rem);line-height:1.04;letter-spacing:-2.7px;margin:14px 0 20px;max-width:850px}
h2{font-size:clamp(1.55rem,2.5vw,2.15rem);line-height:1.2;letter-spacing:-.8px;margin:42px 0 14px}
h3{line-height:1.25;margin:0 0 8px}
.lead{font-size:1.13rem;color:#596274;max-width:760px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border:1px solid #dddff0;border-radius:10px;background:#fff;color:var(--ink);font-weight:800;box-shadow:0 2px 7px rgba(0,0,0,.03)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.primary{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 20px rgba(91,76,240,.2)}
.hero-card,.card,.toc,.fact,details{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.hero-card{padding:24px}
.version{font-size:2.25rem;font-weight:950;letter-spacing:-1px}
.badge{display:inline-block;background:#e8f8f1;color:#087b50;border-radius:999px;padding:5px 10px;font-weight:850;font-size:.78rem}
.quick{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.quick div{padding:13px;border:1px solid var(--line);border-radius:12px;background:#fbfbfd}
.quick small{display:block;color:var(--muted);font-weight:700;margin-bottom:2px}
section{padding:52px 0}
.section-head{max-width:760px;margin-bottom:24px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{padding:22px}
.card p{margin:7px 0 0;color:#606a7b}
.home-images{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.home-image-card{overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.home-image-card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.home-image-card .image-copy{padding:18px 20px 20px}
.home-image-card h3{margin:0 0 5px}
.home-image-card p{margin:0;color:var(--muted)}
@media(max-width:900px){.home-images{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.home-images{grid-template-columns:1fr}}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}
.fact{padding:17px 18px;box-shadow:none}
.fact strong{display:block;font-size:1.02rem}
.muted{color:var(--muted)}
.note{padding:17px 19px;border:1px solid #dfe2f0;background:#fff;border-radius:13px;margin:20px 0}
.warn{border-left:4px solid #e04b3f;background:#fff3f1;padding:15px 18px;border-radius:0 12px 12px 0}
.toc{padding:20px}
.toc a{display:inline-block;margin:4px 6px 4px 0;padding:7px 10px;background:#f4f3ff;border-radius:8px;font-weight:700;font-size:.92rem}
.article{max-width:1080px}
.article>p,.article>ul,.article>ol{max-width:820px}
.article p{margin:0 0 16px;color:#4f596a}
.article h2{margin-top:42px}
.article h3{margin-top:26px}
.article img{max-width:100%;border-radius:14px}
table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left}
th{background:#f7f7fb;font-size:.92rem}
tr:last-child td{border-bottom:0}
details{margin:10px 0;padding:16px 18px;box-shadow:none}
summary{font-weight:800;cursor:pointer}
details p{margin:10px 0 0}
footer{background:#151624;color:#dfe1eb;padding:46px 0 20px;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.footer-grid h3,.footer-grid h4{color:#fff}
.footer-grid a{display:block;color:#dfe1eb;margin:6px 0}
.copy{border-top:1px solid #303246;margin-top:25px;padding-top:18px;color:#a5a9b8;font-size:.9rem}
@media(max-width:900px){.hero-grid,.grid2{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.facts{grid-template-columns:1fr 1fr}nav{display:none}.brand img{width:38px;height:38px}}
@media(max-width:560px){.grid,.facts,.quick{grid-template-columns:1fr}.nav{height:64px}.hero{padding-top:50px}h1{letter-spacing:-1.8px}.wrap{width:min(94%,1160px)}section{padding:42px 0}}

.article-feature-image{margin:28px 0 34px;border-radius:18px;overflow:hidden;background:#f4f5f8;border:1px solid #e4e6ec}.article-feature-image img{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover}.article-feature-image figcaption{padding:10px 14px;font-size:.85rem;color:#6b7280;background:#fff}.article-feature-image+ h2{margin-top:10px}