:root{--bg:#07101f;--panel:#0e1a31;--ink:#122033;--muted:#5f6d7e;--paper:#f7f9fc;--white:#fff;--cyan:#0ea5b7;--cyan2:#67e8f9;--gold:#f2b322;--line:#dce4ee;--shadow:0 18px 60px rgba(5,18,40,.12);--radius:24px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.68;-webkit-font-smoothing:antialiased;overflow-x:hidden}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:40;background:rgba(7,16,31,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}.nav{min-height:76px;display:flex;align-items:center;gap:22px;position:relative}.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:850;letter-spacing:-.02em;font-size:1.08rem;white-space:nowrap;flex:0 0 auto}.brand img{width:42px;height:42px}.menu{display:flex;align-items:center;justify-content:flex-end;gap:17px;margin-left:auto;min-width:0}.menu a{color:#c8d4e6;font-size:.88rem;font-weight:760;white-space:nowrap}.menu a:hover,.menu a:focus-visible{color:#fff}.nav-download{padding:10px 14px;border:1px solid rgba(103,232,249,.45);border-radius:12px;background:rgba(103,232,249,.08)}.menu-toggle{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:10px;width:44px;height:44px;cursor:pointer;flex:0 0 auto}.hero{position:relative;overflow:hidden;background:var(--bg);color:#fff;padding:92px 0 78px}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(103,232,249,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(103,232,249,.055) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,#000,transparent 92%)}.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:64px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;text-transform:uppercase;font-weight:850;letter-spacing:.14em;font-size:.76rem;color:#89f3ff}.eyebrow:before{content:"";width:24px;height:2px;background:var(--gold)}h1,h2,h3{line-height:1.08;letter-spacing:-.04em;margin:0;overflow-wrap:anywhere}h1{max-width:760px}.home-page .hero h1{font-size:46px}.hero p{font-size:1.14rem;color:#bdc8d9;max-width:680px;margin:24px 0 32px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 20px;border-radius:14px;font-weight:850;border:1px solid transparent;text-align:center}.btn-primary{background:var(--cyan2);color:#06111f}.btn-secondary{border-color:rgba(255,255,255,.18);color:#fff;background:rgba(255,255,255,.05)}.blueprint{position:relative;min-height:420px;border:1px solid rgba(103,232,249,.2);border-radius:34px;background:linear-gradient(145deg,rgba(103,232,249,.08),rgba(255,255,255,.02));box-shadow:inset 0 0 0 1px rgba(255,255,255,.03)}.cube{position:absolute;inset:50% auto auto 50%;width:210px;transform:translate(-50%,-50%);filter:drop-shadow(0 25px 45px rgba(0,0,0,.32))}.bp-tag{position:absolute;padding:10px 12px;border:1px solid rgba(255,255,255,.13);background:rgba(9,22,43,.88);border-radius:12px;color:#d7e2f2;font-weight:760;font-size:.82rem}.bp-a{left:28px;top:28px}.bp-b{right:28px;top:86px}.bp-c{left:48px;bottom:42px}.bp-d{right:28px;bottom:30px}.stats{background:#0d1a30;color:#fff;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}.stat{padding:22px;border-right:1px solid rgba(255,255,255,.08)}.stat:last-child{border-right:0}.stat b{display:block;color:#fff}.stat span{color:#9aabc1;font-size:.88rem}.section{padding:86px 0}.section.alt{background:#edf3f8}.section.dark{background:#0a1428;color:#fff}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:38px}.section-head h2{font-size:clamp(2rem,4vw,3.4rem);max-width:740px}.section-head p{max-width:520px;margin:0;color:var(--muted)}.dark .section-head p{color:#c2cee0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 30px rgba(20,40,70,.04)}.card .num{font-size:.8rem;font-weight:900;color:#087480;letter-spacing:.12em}.card h3{font-size:1.35rem;margin:16px 0 12px}.card p{margin:0;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;min-width:0}.feature-card .feature-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#dff8fb;color:#075b67;font-weight:950;margin-bottom:18px}.feature-card h3{font-size:1.22rem;margin-bottom:10px}.feature-card p{margin:0;color:var(--muted);font-size:.95rem}.source-stack{display:grid;gap:14px}.source-row{display:grid;grid-template-columns:130px minmax(0,1fr) auto;gap:18px;align-items:center;padding:20px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);min-width:0}.source-row .pill{font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:#075b67;background:#dff8fb;padding:7px 10px;border-radius:99px;width:max-content}.source-row b{font-size:1.06rem}.source-row span.meta{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}.source-row .out{font-weight:850;color:#086c79;white-space:nowrap}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.guide-card{display:grid;grid-template-columns:110px minmax(0,1fr);gap:22px;align-items:start;padding:24px;border-radius:24px;background:#fff;border:1px solid var(--line);transition:.2s transform,.2s box-shadow;min-width:0}.guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.guide-card img{width:110px;height:110px}.guide-card small{font-weight:850;color:#087480;text-transform:uppercase;letter-spacing:.09em}.guide-card h3{font-size:1.35rem;margin:8px 0}.guide-card p{color:var(--muted);margin:0 0 10px}.text-link{font-weight:850;color:#087480}.compat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.compat-card{border:1px solid var(--line);border-radius:22px;padding:26px;background:#fff}.compat-card strong{display:block;color:#087480;font-size:.77rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}.compat-card h3{font-size:1.3rem;margin-bottom:12px}.compat-card p{margin:0;color:var(--muted)}.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.step-card{border-radius:22px;padding:25px;background:#10203a;border:1px solid rgba(255,255,255,.1)}.step-card .step-num{font-weight:950;color:var(--cyan2);font-size:.78rem;letter-spacing:.12em}.step-card h3{color:#fff;font-size:1.2rem;margin:14px 0 10px}.step-card p{margin:0;color:#b8c7da;font-size:.94rem}.faq{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:50px}.faq-item{border-bottom:1px solid rgba(255,255,255,.16)}.faq-btn{width:100%;padding:21px 0;border:0;background:none;display:flex;justify-content:space-between;gap:20px;text-align:left;font-weight:850;color:#f8fbff;cursor:pointer}.faq-btn:hover,.faq-btn:focus-visible{color:var(--cyan2)}.faq-answer{display:none;color:#c7d4e5;padding:0 0 20px}.faq-answer p{margin:0;color:#c7d4e5}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-btn i{transform:rotate(45deg)}.faq-btn i{font-style:normal;transition:.2s;color:#89f3ff}.site-footer{background:#050c18;color:#b7c3d4;padding:56px 0 30px}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr .85fr .85fr;gap:36px}.footer-grid h3{color:#fff;font-size:1rem;letter-spacing:0;margin-bottom:14px}.footer-grid p{max-width:390px}.footer-links{display:grid;gap:9px}.footer-links a{overflow-wrap:anywhere}.footer-links a:hover{color:#fff}.footer-sitemap{display:inline-flex;align-items:center;justify-content:center;width:max-content;max-width:100%;margin-top:4px;padding:9px 13px;border:1px solid rgba(103,232,249,.35);border-radius:11px;color:#dffaff;background:rgba(103,232,249,.07);font-weight:800}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.08);padding-top:22px;margin-top:38px;font-size:.84rem;color:#8999af}.page-hero{background:#081326;color:#fff;padding:72px 0 54px}.page-hero h1{font-size:clamp(2.8rem,6vw,5.4rem)}.page-hero p{max-width:760px;color:#c1ccdc;font-size:1.08rem;margin:20px 0 0}.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:46px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:44px;box-shadow:0 12px 40px rgba(20,40,70,.04);min-width:0}.article .feature{width:128px;height:128px;margin-bottom:28px}.article h2{font-size:2rem;margin:42px 0 16px}.article h2:first-of-type{margin-top:10px}.article p{color:#3f5063;margin:0 0 19px}.article-note{border-left:4px solid var(--gold);background:#fff8df;padding:18px 20px;border-radius:0 14px 14px 0;margin:30px 0}.toc{position:sticky;top:98px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;min-width:0}.toc b{display:block;margin-bottom:12px}.toc a{display:block;color:var(--muted);padding:7px 0;font-size:.92rem;overflow-wrap:anywhere}.toc a:hover{color:#087480}.download-box{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;padding:34px;border-radius:28px;background:#0d1a30;color:#fff}.download-box p{color:#b5c3d6;margin:10px 0 0}.versions-list{display:grid;gap:14px}.version-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.version-row p{margin:6px 0 0;color:var(--muted)}.legal{max-width:900px}.legal .legal-lead{font-size:1.08rem;color:#33465a}.legal h2{font-size:1.75rem;margin:38px 0 12px}.legal h3{font-size:1.2rem;margin:28px 0 10px}.legal p{color:#526276;margin:0 0 18px}.legal ul{color:#526276;padding-left:22px}.legal li{margin-bottom:9px}.legal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:30px 0}.info-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.info-box h3{margin:0 0 10px}.info-box p{margin:0}.page-intro{max-width:880px;margin-bottom:34px}.page-intro p{color:var(--muted);font-size:1.02rem}.content-stack{display:grid;gap:18px}.content-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px}.content-card h2{font-size:1.55rem;margin-bottom:12px}.content-card p{color:var(--muted);margin:0 0 13px}.content-card p:last-child{margin-bottom:0}.section-cta{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:1180px) and (min-width:901px){.nav{gap:14px}.menu{gap:11px}.menu a{font-size:.81rem}.nav-download{padding:9px 11px}.brand{font-size:1rem}.brand img{width:38px;height:38px}}
@media (max-width:900px){.menu-toggle{display:block}.menu{display:none;position:absolute;left:0;right:0;top:68px;flex-direction:column;align-items:stretch;justify-content:flex-start;background:#0b1730;border:1px solid rgba(255,255,255,.12);padding:14px;border-radius:16px;box-shadow:0 20px 40px rgba(0,0,0,.24);max-height:calc(100vh - 86px);overflow:auto}.menu.open{display:flex}.menu a{padding:10px 12px;font-size:.94rem}.nav-download{text-align:center}.feature-grid,.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media (max-width:900px){.hero-grid,.faq,.article-wrap{grid-template-columns:1fr}.blueprint{min-height:340px}.cards{grid-template-columns:1fr 1fr}.guide-grid{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}.source-row{grid-template-columns:120px minmax(0,1fr)}.source-row .out{grid-column:2}.toc{position:relative;top:0;order:-1}.compat-grid{grid-template-columns:1fr 1fr}.legal-grid{grid-template-columns:1fr}}
@media (max-width:720px){html{scroll-padding-top:76px}.home-page .hero h1{font-size:36px}.wrap{width:min(calc(100% - 26px),var(--max))}.nav{min-height:68px;gap:12px}.brand{font-size:1rem}.brand img{width:36px;height:36px}.menu{left:0;right:0;top:62px}.hero{padding:68px 0 54px}.hero-grid{gap:34px}.hero p{font-size:1.02rem}.actions .btn{width:100%}.blueprint{min-height:290px;border-radius:24px}.cube{width:154px}.bp-tag{font-size:.7rem;padding:7px 8px}.bp-a{left:14px;top:14px}.bp-b{right:14px;top:58px}.bp-c{left:18px;bottom:28px}.bp-d{right:14px;bottom:18px}.stat-grid,.cards,.feature-grid,.compat-grid,.step-grid,.footer-grid{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.08)}.stat:last-child{border-bottom:0}.section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:16px}.guide-card{grid-template-columns:72px minmax(0,1fr);padding:18px;gap:15px}.guide-card img{width:72px;height:72px}.guide-card h3{font-size:1.16rem}.source-row{grid-template-columns:1fr;padding:18px}.source-row .out{grid-column:1}.article{padding:24px 19px;border-radius:22px}.article .feature{width:96px;height:96px}.article h2{font-size:1.62rem}.download-box,.version-row{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}.page-hero{padding:56px 0 44px}.legal h2{font-size:1.5rem}.faq{gap:28px}.faq-btn{font-size:.98rem}.footer-sitemap{width:100%}}
@media (max-width:390px){.wrap{width:min(calc(100% - 20px),var(--max))}.brand span{font-size:.94rem}.guide-card{grid-template-columns:1fr}.guide-card img{width:68px;height:68px}.bp-tag{font-size:.65rem}.article{padding:21px 16px}.card,.feature-card,.compat-card,.step-card,.content-card{padding:21px}}
/* Homepage section-intro alignment: keep headings and supporting copy in one coherent reading flow. */
.home-page .section-head{display:block;max-width:900px;margin-bottom:38px}
.home-page .section-head>div{max-width:900px}
.home-page .section-head h2{max-width:900px}
.home-page .section-head p{max-width:760px;margin:14px 0 0}
.home-page .dark .section-head p{color:#c2cee0}