:root{--bg:#f6f7fb;--fg:#111827;--mut:#4b5563;--card:#fff;--bd:#e3e6ee;--ac:#4338ca;--ac2:#7c3aed;--r:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Arial,sans-serif}
a{color:var(--ac);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}.narrow{max-width:820px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
.hd{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--bd);box-shadow:0 1px 0 rgba(0,0,0,.02),0 6px 20px -12px rgba(30,27,58,.25)}
.hd-in{display:flex;align-items:center;gap:28px;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:23px;letter-spacing:-.3px;color:var(--fg);white-space:nowrap}.logo b{color:var(--ac)}.logo:hover{text-decoration:none}
.logo-mark{width:40px;height:40px;font-size:20px;border-radius:12px;background:linear-gradient(135deg,var(--ac),var(--ac2));color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 4px 12px rgba(79,70,229,.35)}
.hd nav{flex:1;display:flex;justify-content:center}
.nav{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav>li>a,.nav>li>button{display:flex;align-items:center;gap:6px;padding:10px 15px;border-radius:10px;color:var(--fg);font-size:17px;font-weight:600;line-height:1.2;font-family:inherit;background:none;border:0;cursor:pointer;white-space:nowrap}
.nav>li>a:hover,.nav>li>button:hover,.dd:hover>.dd-t{background:rgba(79,70,229,.09);color:var(--ac);text-decoration:none}
.chev{transition:transform .2s;opacity:.7}.dd:hover .chev,.dd:focus-within .chev{transform:rotate(180deg)}
.dd{position:relative}
.dd-m{display:none;position:absolute;top:calc(100% + 6px);left:0;min-width:290px;background:var(--card);border:1px solid var(--bd);border-radius:14px;padding:8px;box-shadow:0 18px 40px -12px rgba(30,27,58,.35);animation:dd .15s ease}
.dd-more .dd-m{left:auto;right:0}
.dd::after{content:"";position:absolute;left:0;right:0;top:100%;height:8px}
.dd-m a{display:block;white-space:nowrap;padding:12px 16px;border-radius:9px;color:var(--fg);font-size:16.5px;font-weight:500}.dd-m a:hover{background:rgba(79,70,229,.09);color:var(--ac);text-decoration:none}
.dd-m hr{border:0;border-top:1px solid var(--bd);margin:6px 4px}
.dd:hover .dd-m,.dd:focus-within .dd-m{display:block}
@keyframes dd{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.hd-act{display:flex;gap:4px;margin-left:auto}.ico{display:grid;place-items:center;width:44px;height:44px;border:0;background:none;border-radius:10px;cursor:pointer;color:var(--fg)}.ico:hover{background:rgba(79,70,229,.09);color:var(--ac)}.burger{display:none}
.search{border-top:1px solid var(--bd);padding:12px 0;background:var(--card)}
.search input{width:100%;padding:12px 16px;border:1px solid var(--bd);border-radius:12px;font-size:16px;background:var(--bg);color:var(--fg)}
#res a{display:block;padding:8px 4px;border-bottom:1px solid var(--bd);color:var(--fg)}#res small{color:var(--mut)}
.hero{background:linear-gradient(135deg,#4f46e5,#7c3aed 60%,#ec4899);color:#fff;padding:64px 0 56px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,46px);line-height:1.15;margin:0 0 14px}.hero p{max-width:720px;margin:0 auto 22px;opacity:.95;font-size:19px}
.btn{display:inline-block;background:#fff;color:#4f46e5;padding:12px 26px;border-radius:999px;font-weight:700}.btn:hover{text-decoration:none;transform:translateY(-1px)}
.chips{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.chips a{background:rgba(255,255,255,.18);color:#fff;padding:6px 14px;border-radius:999px;font-size:14px}
.sec{padding:40px 16px}.h-list{font-size:28px;margin:0 0 20px}.lead{color:var(--mut);margin-top:-8px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(79,70,229,.15)}
.card-img{display:block;background:linear-gradient(135deg,#4f46e5,#7c3aed)}.card-img img{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}
.card-b{padding:16px 18px 18px}.card h3{font-size:19px;line-height:1.35;margin:8px 0}.card h3 a{color:var(--fg)}
.card p{color:var(--mut);font-size:15px;margin:0 0 10px;line-height:1.55}
.badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;background:rgba(79,70,229,.1);padding:3px 10px;border-radius:999px}
.by{font-size:13px;color:var(--mut)}
.pager{display:flex;gap:6px;justify-content:center;margin:34px 0 0;flex-wrap:wrap}
.pager a,.pager .cur,.pager .dots{min-width:40px;height:40px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--bd);background:var(--card);color:var(--fg)}
.pager .cur{background:var(--ac);color:#fff;border-color:var(--ac)}
.band{background:var(--card);border-block:1px solid var(--bd);padding:44px 0}.two{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.steps{padding-left:20px}.steps li{margin-bottom:10px}.steps b{display:block}.steps span{color:var(--mut);font-size:15px}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.why{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:20px}.why h3{margin:0 0 6px}
details{background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:12px 16px;margin:10px 0}summary{cursor:pointer;font-weight:600}
.author{display:flex;gap:18px;align-items:center;background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:22px}
.av{flex:none;width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--ac),var(--ac2));color:#fff;display:grid;place-items:center;font-weight:800;font-size:24px}
.post{max-width:820px;padding-top:24px;padding-bottom:30px}.post h1{font-size:clamp(26px,4.4vw,38px);line-height:1.2;margin:8px 0}
.post h2{font-size:26px;margin:38px 0 10px;line-height:1.25}.post h3{margin:0}
.crumbs{font-size:14px;color:var(--mut)}.meta{color:var(--mut);font-size:14px;margin-bottom:16px}
.hero-img{border-radius:var(--r);margin:10px 0 22px;width:100%}
.toc{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:16px 22px;margin:22px 0}.toc ol{margin:6px 0 0;padding-left:20px}
.pbox{background:var(--card);border:1px solid var(--bd);border-left:4px solid var(--ac);border-radius:12px;padding:16px;margin:18px 0}
.phead{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}.phead h3{font-size:18px}
.copy{background:var(--ac);color:#fff;border:0;border-radius:999px;padding:8px 18px;font-weight:600;cursor:pointer}.copy.ok{background:#059669}
pre{white-space:pre-wrap;word-break:break-word;background:var(--bg);border:1px dashed var(--bd);border-radius:10px;padding:14px;font:15px/1.6 ui-monospace,Menlo,Consolas,monospace;margin:12px 0 6px}
.pimg{border-radius:10px;margin:12px 0}.pnote{color:var(--mut);font-size:15px;margin:6px 0 0}
.disc{font-size:14px;color:var(--mut);border-top:1px solid var(--bd);padding-top:14px;margin-top:30px}
strong{font-weight:700}
.ft{background:var(--card);border-top:1px solid var(--bd);margin-top:30px;padding:36px 0 20px}.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.ft h4{margin:0 0 8px}.ft a{display:block;color:var(--fg);padding:3px 0;font-size:15px}.ft .logo{display:flex}.muted,.copy-r{color:var(--mut)}.copy{}
.ft .copy{all:unset;display:block;margin-top:24px;font-size:13px;color:var(--mut);text-align:center}
@media(max-width:900px){.grid,.three{grid-template-columns:1fr 1fr}.two,.ft-grid{grid-template-columns:1fr}}
@media(max-width:640px){.grid,.three{grid-template-columns:1fr}.hero{padding:44px 0}}
@media(max-width:1120px){.burger{display:grid}.hd-in{gap:12px;height:68px}.logo{font-size:21px}.logo-mark{width:36px;height:36px}.hd nav{position:absolute;top:68px;left:0;right:0;display:none;background:var(--card);border-bottom:1px solid var(--bd);max-height:calc(100vh - 68px);overflow:auto}
.hd nav.open{display:block}.nav{flex-direction:column;align-items:stretch;padding:8px 16px 16px;gap:0}.nav>li>a,.nav>li>button{padding:14px 8px;width:100%;border-radius:8px;font-size:18px}.dd-m a{font-size:17px;padding:11px 12px}
.chev{display:none}.dd-m,.dd-more .dd-m{display:block;position:static;box-shadow:none;border:0;padding:0 0 4px 14px;min-width:0;animation:none;background:none}.dd::after{display:none}.dd-more>.dd-t{font-weight:700;color:var(--mut)}}

.thumb{position:relative;display:block;overflow:hidden;line-height:1}.thumb img{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}
.thumb-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,8,30,.28) 0%,rgba(10,8,30,0) 30%,rgba(10,8,30,.78) 100%)}
.thumb-tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:#2b1d6b;font-size:11px;font-weight:800;letter-spacing:1.2px;padding:5px 10px;border-radius:999px}
.thumb-head{position:absolute;left:16px;right:16px;bottom:44px;color:#fff;font-weight:800;font-size:clamp(19px,2.1vw,26px);line-height:1.12;letter-spacing:-.2px;text-shadow:0 2px 14px rgba(0,0,0,.55)}
.thumb-chip{position:absolute;left:16px;bottom:14px;color:#fff;font-size:11px;font-weight:700;letter-spacing:1px;background:rgba(79,70,229,.9);padding:5px 10px;border-radius:7px}
.thumb.big .thumb-tag{left:22px;top:22px;font-size:13px;padding:7px 14px}.thumb.big .thumb-head{left:26px;right:26px;bottom:66px;font-size:clamp(26px,4.4vw,48px)}.thumb.big .thumb-chip{left:26px;bottom:24px;font-size:13px;padding:7px 14px}
.hero-img .thumb{border-radius:var(--r)}
@media(max-width:640px){.thumb-head{font-size:22px}}

body.is-article{background:#fff;color:#111827}
body.is-article .post{color:#111827}
body.is-article .post p,body.is-article .post li{color:#1f2937}
body.is-article .post h1,body.is-article .post h2,body.is-article .post h3{color:#0b1020}
body.is-article .post a{color:#3730a3;text-decoration:underline;text-underline-offset:2px}
body.is-article .toc{background:#f8f9ff;border:1px solid #dfe3f5}
body.is-article .toc a{color:#3730a3;text-decoration:none}body.is-article .toc a:hover{text-decoration:underline}
body.is-article .pbox{background:#fff;border:1px solid #dfe3f5;border-left:4px solid #4338ca;box-shadow:0 2px 10px rgba(30,27,58,.05)}
body.is-article pre{background:#f4f5fb;border:1px dashed #c9cfe8;color:#111827}
body.is-article details{background:#f8f9ff;border:1px solid #dfe3f5}
body.is-article .pnote,body.is-article .meta,body.is-article .crumbs,body.is-article .disc{color:#4b5563}
body.is-article .crumbs a{color:#3730a3}
body.is-article strong{color:#0b1020}

.rp{position:fixed;left:0;top:0;height:4px;width:100%;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,#4338ca,#7c3aed,#ec4899);z-index:60;pointer-events:none}
.card-img .thumb img{will-change:transform}
@media(prefers-reduced-motion:reduce){.rp{display:none}}

.lang{position:relative}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);width:min(260px,86vw);background:var(--card);border:1px solid var(--bd);border-radius:14px;padding:10px;box-shadow:0 18px 40px -12px rgba(30,27,58,.35);display:grid;grid-template-columns:1fr 1fr;gap:4px;z-index:70}
.lang-menu[hidden]{display:none}
.lang-t{grid-column:1/-1;font-size:12px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--mut);padding:4px 8px 6px}
.lang-menu button{background:none;border:0;border-radius:9px;padding:10px 12px;font:600 16px/1.2 inherit;font-family:inherit;color:var(--fg);text-align:left;cursor:pointer}
.lang-menu button:hover,.lang-menu button[aria-current]{background:rgba(67,56,202,.1);color:var(--ac)}
.goog-te-banner-frame,.skiptranslate>iframe,#goog-gt-tt,.goog-te-balloon-frame{display:none!important}
body{top:0!important}
.goog-text-highlight{background:none!important;box-shadow:none!important}

html:not([lang="en"]) span.notranslate[translate="no"]{margin:0 .22em}

.hub{color:var(--fg);max-width:860px;margin:0 0 26px}.hub p{margin:0 0 12px;line-height:1.7}
.hub-start{background:#f8f9ff;border:1px solid #dfe3f5;border-radius:12px;padding:14px 18px;margin-top:14px}.hub-start ul{margin:6px 0 0;padding-left:20px}.hub-start a{color:#3730a3;font-weight:600}