:root{
  --c-red:#b3261e;
  --c-red-dark:#8e1c16;
  --c-ink:#1f1f1f;
  --c-text:#3d3d3d;
  --c-muted:#717171;
  --c-line:#e6e1da;
  --c-cream:#faf7f2;
  --c-sand:#f2ece3;
  --f-head:"Poppins",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --f-body:"Roboto",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:#fff;color:var(--c-text);font:400 17px/1.75 var(--f-body)}
a{color:var(--c-red)}
a:hover{color:var(--c-red-dark)}
h1,h2,h3{font-family:var(--f-head);color:var(--c-ink);line-height:1.25;font-weight:600;margin:0 0 .6em}
h1{font-size:2.4rem}
h2{font-size:1.65rem}
h3{font-size:1.2rem}
p{margin:0 0 1.15em}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}
.skip-link:focus{clip:auto;width:auto;height:auto;left:8px;top:8px;background:#fff;padding:8px 12px;z-index:99}
.ast-container{max-width:1200px;margin:0 auto;padding:0 24px}
.ast-container.narrow{max-width:820px}

.ast-above-header-bar{background:var(--c-ink);color:#cfcfcf;font-size:.82rem}
.above-inner{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.above-inner a{color:#fff;text-decoration:none}
.above-inner a:hover{text-decoration:underline}
.site-header{background:#fff;border-bottom:1px solid var(--c-line)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:80px}
.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--c-ink);margin-right:auto}
.logo-badge{width:36px;height:36px;border-radius:8px;background:var(--c-red);color:#fff;display:flex;align-items:center;justify-content:center}
.logo-text{font:500 1.35rem var(--f-head);letter-spacing:-.01em}
.logo-text strong{font-weight:700;color:var(--c-red)}
.main-navigation ul{list-style:none;margin:0;padding:0;display:flex;gap:6px}
.main-navigation a{display:block;padding:8px 12px;color:var(--c-ink);text-decoration:none;font:500 .95rem var(--f-head);border-bottom:2px solid transparent}
.main-navigation a:hover,.main-navigation .current-menu-item a{color:var(--c-red);border-bottom-color:var(--c-red)}
.ast-header-button{background:var(--c-red);color:#fff;text-decoration:none;font:600 .9rem var(--f-head);padding:11px 20px;border-radius:4px}
.ast-header-button:hover{background:var(--c-red-dark);color:#fff}
.menu-toggle{display:none;background:#fff;border:1px solid var(--c-line);font:500 .9rem var(--f-head);padding:8px 14px;border-radius:4px;cursor:pointer}

.btn{display:inline-block;font:600 .95rem var(--f-head);padding:14px 26px;border-radius:4px;text-decoration:none}
.btn-primary{background:var(--c-red);color:#fff}
.btn-primary:hover{background:var(--c-red-dark);color:#fff}
.btn-light{background:#fff;color:var(--c-ink);border:1px solid var(--c-line)}
.btn-light:hover{border-color:var(--c-ink);color:var(--c-ink)}

.hero{background:var(--c-cream);border-bottom:1px solid var(--c-line);padding:72px 0}
.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:2.6rem;font-weight:700}
.hero-sub{font-size:1.12rem;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-facts{display:flex;flex-direction:column;gap:14px}
.fact{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-red);padding:16px 20px}
.fact-num{font:700 1.9rem/1 var(--f-head);color:var(--c-red);min-width:56px}
.fact-txt{font-size:.95rem;line-height:1.45}

.section-pad{padding:64px 0}
.sec-head{margin-bottom:28px}
.sec-head h2{margin-bottom:.3em}
.sec-head p{color:var(--c-muted);margin:0}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.topic{border:1px solid var(--c-line);padding:28px 30px 18px}
.topic-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.topic-head h3{margin:0}
.topic-head h3 a{color:var(--c-ink);text-decoration:none}
.topic-head h3 a:hover{color:var(--c-red)}
.topic-icon{color:var(--c-red);display:flex}
.topic p{color:var(--c-muted);font-size:.95rem}
.topic ul{list-style:none;padding:0;margin:0}
.topic li{border-top:1px solid var(--c-line)}
.topic li a{display:block;padding:9px 0;color:var(--c-ink);text-decoration:none;font-size:.95rem}
.topic li a:hover{color:var(--c-red)}
.topic li a::before{content:"\203A";color:var(--c-red);margin-right:10px;font-weight:700}

.band{background:var(--c-sand)}
.table-wrap{overflow-x:auto;margin:0 0 1.4em}
.matrix{width:100%;border-collapse:collapse;background:#fff;font-size:.95rem}
.matrix th,.matrix td{padding:13px 14px;border:1px solid var(--c-line);text-align:center}
.matrix thead th{background:var(--c-ink);color:#fff;font:500 .88rem var(--f-head);line-height:1.3}
.matrix thead small{font:400 .75rem var(--f-body);color:#cfcfcf}
.matrix tbody th{text-align:left;font-weight:500}
.matrix tbody th a{color:var(--c-ink)}
.matrix .y{color:#1d6b35;font-weight:500;background:#f1f8f2}
.matrix .n{color:#9b1c14;background:#fcf2f1}
.matrix .m{color:#7a5b10;background:#fdf8ec;font-size:.85rem}
.small-note{font-size:.85rem;color:var(--c-muted)}

.tools-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tool-tile{display:flex;flex-direction:column;gap:8px;border:1px solid var(--c-line);padding:26px;text-decoration:none;color:var(--c-text);background:#fff}
.tool-tile:hover{border-color:var(--c-red);color:var(--c-text)}
.tt-icon{color:var(--c-red)}
.tt-name{font:600 1.1rem var(--f-head);color:var(--c-ink)}
.tt-desc{font-size:.93rem;line-height:1.55}
.tt-go{font:600 .88rem var(--f-head);color:var(--c-red);margin-top:auto}

.band-dark{background:var(--c-ink);color:#d9d9d9}
.band-dark h2{color:#fff}
.band-dark a{color:#ff9a8f}
.band-dark a:hover{color:#fff}
.maint-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:56px;align-items:start}
.maint-links{list-style:none;margin:0;padding:0;border-top:1px solid #3a3a3a}
.maint-links li{border-bottom:1px solid #3a3a3a}
.maint-links a{display:block;padding:12px 0;color:#fff;text-decoration:none;font:500 .98rem var(--f-head)}
.maint-links a:hover{color:#ff9a8f}

.recent-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.recent-item{display:grid;grid-template-columns:1fr auto;gap:2px 16px;padding:16px 0;border-bottom:1px solid var(--c-line);text-decoration:none}
.ri-cat{grid-column:1/3;font:500 .75rem var(--f-head);text-transform:uppercase;letter-spacing:.06em;color:var(--c-red)}
.ri-title{color:var(--c-ink);font-weight:500}
.ri-date{color:var(--c-muted);font-size:.85rem;white-space:nowrap}
.recent-item:hover .ri-title{color:var(--c-red)}

.page-title-bar{background:var(--c-cream);border-bottom:1px solid var(--c-line);padding:44px 0 34px;margin-bottom:44px}
.breadcrumbs{font-size:.85rem;color:var(--c-muted);margin-bottom:12px}
.breadcrumbs a{color:var(--c-muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--c-red)}
.entry-title{font-size:2.3rem;font-weight:700;margin-bottom:.35em}
.entry-meta{color:var(--c-muted);font-size:.9rem;margin:0}
.section-intro{font-size:1.08rem;max-width:42em;margin:0}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:flex;flex-direction:column;gap:10px;border:1px solid var(--c-line);padding:24px;text-decoration:none;color:var(--c-text)}
.card:hover{border-color:var(--c-red);color:var(--c-text)}
.card-icon{color:var(--c-red)}
.card-title{font:600 1.1rem/1.35 var(--f-head);color:var(--c-ink)}
.card-text{font-size:.93rem;line-height:1.55}
.card-more{font:600 .88rem var(--f-head);color:var(--c-red);margin-top:auto}

.entry-content h2{margin-top:1.9em;font-size:1.55rem}
.entry-content h3{margin-top:1.4em}
.entry-content ul,.entry-content ol{padding-left:1.3em;margin:0 0 1.3em}
.entry-content li{margin-bottom:.35em}
.entry-content table{width:100%;border-collapse:collapse;font-size:.94rem}
.entry-content th,.entry-content td{border:1px solid var(--c-line);padding:10px 13px;text-align:left;vertical-align:top}
.entry-content thead th{background:var(--c-sand);font:500 .88rem var(--f-head);color:var(--c-ink)}
.toc{border:1px solid var(--c-line);background:var(--c-cream);padding:18px 24px 10px;margin-bottom:34px}
.toc-title{font:600 .95rem var(--f-head);color:var(--c-ink);margin-bottom:6px}
.toc ul{list-style:none;padding:0;margin:0 0 6px;columns:2;column-gap:28px;font-size:.92rem}
.toc li{break-inside:avoid;padding:3px 0}
.toc a{text-decoration:none}
.faq{margin-top:2.4em}
.faq details{border-bottom:1px solid var(--c-line)}
.faq summary{cursor:pointer;padding:16px 36px 16px 0;font:500 1.02rem var(--f-head);color:var(--c-ink);list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:24px;width:9px;height:9px;border-right:2px solid var(--c-red);border-bottom:2px solid var(--c-red);transform:rotate(45deg)}
.faq details[open] summary::after{transform:rotate(-135deg);top:28px}
.faq details p{margin-bottom:16px}
.more-in{border-top:3px solid var(--c-red);margin:48px 0 72px;padding-top:20px}
.more-title{font:600 1.05rem var(--f-head);color:var(--c-ink)}
.more-in ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:4px 28px}
.more-in li a{display:block;padding:6px 0;text-decoration:none;color:var(--c-ink);font-size:.95rem}
.more-in li a:hover{color:var(--c-red)}

/* tools */
.tool-app{border:1px solid var(--c-line);border-top:4px solid var(--c-red);padding:28px;margin-bottom:40px;background:#fff;box-shadow:0 6px 20px rgba(0,0,0,.04)}
.tool-app fieldset{border:0;padding:0;margin:0 0 20px}
.tool-app legend{font:600 1rem var(--f-head);color:var(--c-ink);margin-bottom:10px}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.opts label{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--c-line);padding:11px 14px;cursor:pointer;font-size:.95rem;line-height:1.4}
.opts label:hover{border-color:var(--c-red)}
.opts input{margin-top:3px;accent-color:var(--c-red)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}
.field-row label{display:flex;flex-direction:column;gap:6px;font:500 .9rem var(--f-head);color:var(--c-ink)}
.field-row input,.field-row select{font:400 1rem var(--f-body);padding:11px 12px;border:1px solid #cfc8bd;border-radius:3px;background:#fff;width:100%}
.tool-app button{background:var(--c-red);color:#fff;border:0;font:600 .95rem var(--f-head);padding:13px 24px;border-radius:4px;cursor:pointer}
.tool-app button:hover{background:var(--c-red-dark)}
.tool-out{margin-top:24px}
.tool-out:empty{display:none}
.out-card{background:var(--c-cream);border:1px solid var(--c-line);padding:20px 22px;margin-bottom:12px}
.out-card h3{margin:0 0 6px;font-size:1.1rem}
.out-card p{margin:0 0 6px;font-size:.95rem}
.out-card.warn{border-left:4px solid #c27c0e}
.out-card.ok{border-left:4px solid #1d6b35}
.out-card.bad{border-left:4px solid var(--c-red)}
.out-table{width:100%;border-collapse:collapse;font-size:.94rem;background:#fff}
.out-table th,.out-table td{border:1px solid var(--c-line);padding:10px 12px;text-align:left}
.out-table thead th{background:var(--c-sand);font:500 .86rem var(--f-head)}
.out-note{font-size:.85rem;color:var(--c-muted);margin-top:8px}

.site-footer{background:var(--c-sand);border-top:1px solid var(--c-line);font-size:.92rem;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;padding-top:52px;padding-bottom:40px}
.footer-brand{font:500 1.25rem var(--f-head);color:var(--c-ink)}
.footer-brand strong{color:var(--c-red)}
.footer-title{font:600 .95rem var(--f-head);color:var(--c-ink)}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{padding:3px 0;line-height:1.4}
.site-footer a{color:var(--c-text);text-decoration:none}
.site-footer a:hover{color:var(--c-red)}
.footer-bottom{border-top:1px solid var(--c-line);padding:16px 0;font-size:.85rem;color:var(--c-muted)}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom-inner a{margin-left:16px;color:var(--c-muted)}

@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .card-grid,.tools-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:921px){
  .header-inner{flex-wrap:wrap;gap:12px;min-height:68px;padding-top:10px;padding-bottom:10px}
  .menu-toggle{display:block;order:2}
  .ast-header-button{order:3;padding:9px 14px}
  .main-navigation{order:4;flex-basis:100%;display:none}
  .main-navigation.toggled{display:block}
  .main-navigation ul{flex-direction:column;gap:0}
  .main-navigation a{border-bottom:1px solid var(--c-line);padding:12px 0}
  .hero-grid,.maint-grid{grid-template-columns:1fr;gap:32px}
  .topic-grid,.recent-list{grid-template-columns:1fr}
}
@media (max-width:600px){
  body{font-size:16px}
  .ast-container{padding:0 16px}
  .above-inner span{display:none}
  .hero{padding:44px 0}
  .hero h1,.entry-title{font-size:1.8rem}
  .card-grid,.tools-row,.opts,.field-row,.more-in ul{grid-template-columns:1fr}
  .toc ul{columns:1}
  .footer-grid{grid-template-columns:1fr 1fr}
  .topic{padding:22px 20px 12px}
  .tool-app{padding:20px 16px}
  .section-pad{padding:44px 0}
}