:root{--ink:#18202b;--muted:#5c6877;--brand:#168a90;--brand2:#2457c5;--paper:#fff;--soft:#f4f7f9;--line:#dce4e8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,"Segoe UI",Arial,"Noto Sans",sans-serif;line-height:1.72}a{color:#165bb5}img{max-width:100%;height:auto}.i18n-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}.i18n-nav{max-width:1180px;margin:auto;min-height:76px;padding:10px 22px;display:flex;align-items:center;gap:24px}.i18n-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:800;white-space:nowrap}.i18n-brand img{width:48px;height:48px;object-fit:contain}.i18n-brand span{font-size:19px}.i18n-links{display:flex;gap:20px;margin-left:auto;align-items:center}.i18n-links a{text-decoration:none;color:var(--ink);font-weight:650}.i18n-download,.hero-actions a{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:11px 18px;background:var(--brand2);color:#fff!important;text-decoration:none;font-weight:800}.lang-menu{position:relative}.lang-menu summary{cursor:pointer;list-style:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;background:#fff;font-weight:700}.lang-menu summary::-webkit-details-marker{display:none}.lang-menu>div{position:absolute;right:0;top:46px;width:210px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.14);padding:8px;display:grid;grid-template-columns:1fr 1fr}.lang-menu a{padding:7px 8px;text-decoration:none;color:var(--ink);border-radius:6px}.lang-menu a:hover,.lang-menu a[aria-current=page]{background:#eaf3ff}.hero{background:linear-gradient(135deg,#eef8f8,#edf2ff);padding:72px 22px}.hero-inner,.article,.core-section,.i18n-footer>div{max-width:1080px;margin:auto}.hero h1,.article-head h1{font-size:clamp(2.1rem,5vw,4rem);line-height:1.1;margin:.25em 0}.hero p,.article-head p{font-size:1.2rem;color:var(--muted);max-width:780px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}.hero-visual{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:0 18px 45px rgba(31,55,74,.13)}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.hero-actions .secondary{background:#fff;color:var(--ink)!important;border:1px solid var(--line)}.core-section{padding:64px 22px}.core-section h2,.article-body h2{font-size:clamp(1.45rem,3vw,2.2rem);line-height:1.25;margin-top:1.8em}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{border:1px solid var(--line);border-radius:14px;padding:24px;background:#fff}.article{padding:58px 22px 80px}.article-head{max-width:900px;margin-bottom:34px}.eyebrow{display:inline-block;color:var(--brand2);font-weight:850;letter-spacing:.08em;text-transform:uppercase}.article-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:42px}.toc{position:sticky;top:100px;align-self:start;border:1px solid var(--line);border-radius:12px;padding:18px;background:var(--soft)}.toc a{display:block;padding:6px 0;text-decoration:none}.article-body{min-width:0;font-size:1.05rem}.lead{font-size:1.22rem}.callout{border-left:5px solid var(--brand);background:#ecf8f7;padding:18px 20px;border-radius:8px;margin:28px 0}.article-body figure{margin:32px 0}.article-body figure img{border-radius:14px;border:1px solid var(--line)}.article-body figcaption{color:var(--muted);font-size:.92rem}.article-body li{margin:.45em 0}.checklist{background:var(--soft);border-radius:12px;padding:20px 26px}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.guide-card{border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;color:var(--ink)}.guide-card h2{margin:0 0 8px;font-size:1.25rem}.guide-card p{color:var(--muted)}.i18n-footer{background:#17212c;color:#dfe8ee;padding:46px 22px}.i18n-footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-lang{margin-top:28px;padding-top:22px;border-top:1px solid #42505e;display:flex;gap:12px;flex-wrap:wrap}.footer-lang a[aria-current=page]{font-weight:900;text-decoration:underline}.legal-note{background:#fff8e8;border:1px solid #efdaa5;border-radius:10px;padding:16px}.codex-language-bar{background:#eef3f6;border-top:1px solid #ccd8df;padding:14px 18px;text-align:center;font:600 14px/1.6 "Segoe UI",Arial,sans-serif;color:#24313d}.codex-language-bar a{display:inline-block;margin:2px 7px;color:#145ca8;text-decoration:none}.codex-language-bar a:hover{text-decoration:underline}@media(max-width:900px){.i18n-nav{flex-wrap:wrap}.i18n-links{order:3;width:100%;overflow-x:auto;padding-bottom:5px}.hero-grid,.article-layout{grid-template-columns:1fr}.toc{position:static}.cards{grid-template-columns:1fr 1fr}.lang-menu{margin-left:auto}.i18n-download{display:none}}@media(max-width:600px){.i18n-brand span{font-size:16px}.i18n-links{gap:14px}.hero{padding-top:42px}.cards,.guide-grid,.footer-grid{grid-template-columns:1fr}.article{padding-top:36px}.lang-menu>div{position:fixed;right:12px;left:12px;top:74px;width:auto}}.i18n-site-fvcj .i18n-brand img{width:220px;height:auto;max-height:52px}.i18n-site-fvcj .i18n-brand span{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:600px){.i18n-links{white-space:nowrap;scrollbar-width:none}.i18n-links::-webkit-scrollbar{display:none}.i18n-links a{flex:0 0 auto}.i18n-site-fvcj .i18n-brand img{width:156px;max-height:40px}.i18n-site-fmcj .i18n-brand{gap:8px}.i18n-site-fmcj .i18n-brand img{width:38px;height:38px}.i18n-site-fmcj .i18n-brand span{font-size:14px}}