:root{--bg:#F7F7FA;--fg:#111;--mut:#5b5b66;--card:#fff;--line:#e6e6ee;--p:#2470E7;--s:#C86FF3}
html.dark{--bg:#000;--fg:#F0F0F0;--mut:#a1a1ad;--card:#0f0f14;--line:#22222b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,sans-serif;line-height:1.7;transition:background .3s,color .3s}
a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}.brand img{height:36px;width:auto}
.brand img{height:40px}.brand .logo-d,html.dark .brand .logo-l{display:none}html.dark .brand .logo-d{display:block}
.top{background:rgba(255,255,255,.8)}html.dark .top{background:rgba(0,0,0,.8)}
.nav{height:72px}.hl{display:flex;gap:32px;align-items:center;font-size:.875rem;font-weight:500}
.hl a{color:#374151;transition:color .3s;position:relative}html.dark .hl a{color:#d1d5db}
.hl a:not(.pill)::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--p);transition:width .3s}
.hl a:hover,.hl a.active{color:var(--p)!important}.hl a:hover::after{width:100%}
.pill{border:1px solid #d1d5db;padding:10px 20px;border-radius:99px}html.dark .pill{border-color:rgba(255,255,255,.2)}.pill:hover{border-color:var(--p)}
.hact{display:flex;gap:12px;align-items:center}.hlang{position:relative}
.ib{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:0;border-radius:99px;background:none;color:#4b5563;cursor:pointer;font-size:1.15rem;transition:background .3s}
html.dark .ib{color:#d1d5db}.ib:hover{background:#f3f4f6}html.dark .ib:hover{background:rgba(255,255,255,.1)}
#lt{font-size:1.25rem}#tt .fa-sun,html.dark #tt .fa-moon{display:none}html.dark #tt .fa-sun{display:inline}
.lmenu{position:absolute;right:0;top:48px;width:150px;background:#fff;border:1px solid #f3f4f6;border-radius:12px;box-shadow:0 10px 25px rgba(0,0,0,.1);overflow:hidden;z-index:50}
html.dark .lmenu{background:#1f2937;border-color:#374151}.hl-opt{display:flex;gap:12px;align-items:center;padding:12px 16px;font-size:.875rem;font-weight:500}.hl-opt:hover{background:rgba(0,0,0,.05)}html.dark .hl-opt:hover{background:#374151}
.mbtn{display:none}.mmenu .wrap{display:flex;flex-direction:column;gap:16px;padding-block:16px 24px;border-top:1px solid var(--line)}.mmenu a{font-size:1.1rem;font-weight:500}.mmenu .mc{color:var(--p)}
@media(max-width:767px){.hl{display:none}.mbtn{display:flex}}
.bhero{padding:80px 0 40px;text-align:center;background:radial-gradient(circle at 30% 0,rgba(36,112,231,.18),transparent 55%),radial-gradient(circle at 80% 20%,rgba(200,111,243,.16),transparent 50%)}
.kicker{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--p)}
.bhero h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.15;margin:12px auto;max-width:820px;font-weight:800}
.bhero em{font-style:normal;background:linear-gradient(90deg,var(--p),var(--s));-webkit-background-clip:text;background-clip:text;color:transparent}
.bhero p{color:var(--mut);max-width:640px;margin:0 auto 24px;font-size:1.1rem}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips a{border:1px solid var(--c);color:var(--c);padding:6px 16px;border-radius:99px;font-size:.85rem;font-weight:600}
.chips a:hover{background:var(--c);color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin:24px 0 60px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -15px rgba(0,0,0,.25)}
.cb{padding:20px}.cb h3{font-size:1.12rem;line-height:1.35;margin:10px 0 8px}.cb p{color:var(--mut);font-size:.92rem;margin:0 0 12px}
.feat .card a{display:grid;grid-template-columns:1.3fr 1fr;align-items:center}.feat .cb h3{font-size:1.6rem}
@media(max-width:800px){.feat .card a{grid-template-columns:1fr}}
.tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#fff;background:var(--c,var(--p));padding:4px 10px;border-radius:99px}
.meta{color:var(--mut);font-size:.85rem}
.post{max-width:800px;padding-top:32px}.post h1{font-size:clamp(1.8rem,4.5vw,2.8rem);line-height:1.2;margin:14px 0 10px;font-weight:800}
.crumbs{font-size:.85rem;color:var(--mut);margin-bottom:16px}.crumbs a:hover{color:var(--p)}
.hero{border-radius:18px;margin:24px 0}
.tldr{background:var(--card);border-left:4px solid var(--p);padding:16px 20px;border-radius:10px;margin-bottom:24px}
.toc{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin-bottom:28px}.toc ol{margin:8px 0 0;padding-left:20px}.toc a{color:var(--p)}
.content{font-size:1.06rem}.content h2{font-size:1.55rem;line-height:1.3;margin:40px 0 12px;scroll-margin-top:90px}.content strong{color:var(--fg)}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faq summary{font-weight:600;cursor:pointer}.faq p{color:var(--mut);margin:10px 0 0}
.sub{font-size:1.5rem;margin-top:60px}
.cta{margin-top:40px;padding:70px 0;text-align:center;color:#fff;background:linear-gradient(120deg,var(--p),var(--s))}
.cta h2{font-size:2rem;margin:0 0 10px}.cta p{max-width:620px;margin:0 auto 24px;opacity:.92}
.btn{display:inline-block;background:#fff;color:#111;font-weight:700;padding:14px 30px;border-radius:99px}
.foot{background:#fff;border-top:1px solid #e5e7eb;padding:64px 0 32px;color:#6b7280}html.dark .foot{background:#000;border-color:rgba(255,255,255,.05)}
.frow{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center;margin-bottom:40px}
.fbrand img{height:32px;opacity:.9}.fnav{display:flex;flex-wrap:wrap;gap:32px;justify-content:center}.fnav a:hover{color:var(--p)}
.ig{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:99px;color:#fff;font-size:1.1rem;background:linear-gradient(135deg,#9333ea,#ec4899,#fb923c);transition:transform .3s}.ig:hover{transform:scale(1.1)}
.fbot{border-top:1px solid #f3f4f6;padding-top:32px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.875rem}html.dark .fbot{border-color:rgba(255,255,255,.05)}.fbot p{margin:0}
.heart{color:#ef4444;animation:hb 1.5s infinite}@keyframes hb{50%{opacity:.5}}
@media(max-width:767px){.frow,.fbot{flex-direction:column;text-align:center}}
.langs{display:flex;gap:4px;font-size:.78rem;font-weight:700}.langs a{padding:4px 7px;border-radius:6px;color:var(--mut)}.langs a.active{background:var(--p);color:#fff}