:root{
  --blue:#1A73E8; --blue-dark:#174EA6; --blue-tint:#E8F0FE;
  --text:#202124; --text-soft:#5F6368; --text-faint:#80868B;
  --line:#E1E3E6; --bg:#FFFFFF; --bg-soft:#F8F9FA;
  --shadow-1:0 1px 2px rgba(60,64,67,0.25),0 1px 3px 1px rgba(60,64,67,0.12);
}
*{ box-sizing:border-box; }
html{ background:var(--bg); }
body{ margin:0; background:var(--bg); color:var(--text); font-family:"Roboto",Arial,ui-sans-serif,sans-serif; line-height:1.6; -webkit-font-smoothing:antialiased; }
h1,h2,h3{ font-weight:700; letter-spacing:-0.015em; text-wrap:balance; margin:0; }
a{ color:var(--blue); }
:focus-visible{ outline:2px solid var(--blue); outline-offset:2px; }
.wrap{ max-width:1120px; margin:0 auto; padding-inline:20px; }
.nav{ position:sticky; top:0; z-index:20; background:rgba(255,255,255,0.92); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.nav-row{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding-block:14px; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.15rem; color:var(--text); text-decoration:none; }
.brand-mark{ width:32px; height:32px; border-radius:9px; background:linear-gradient(145deg,var(--blue),var(--blue-dark)); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:700; flex:none; }
.nav-links{ display:flex; gap:26px; font-size:0.92rem; }
.nav-links a{ color:var(--text-soft); text-decoration:none; }
.nav-links a:hover{ color:var(--blue); }
@media (max-width:720px){ .nav-links{ display:none; } }
.btn{ display:inline-flex; align-items:center; justify-content:center; border-radius:999px; padding:11px 24px; font-weight:500; font-size:0.92rem; border:1px solid transparent; text-decoration:none; white-space:nowrap; }
.btn-primary{ background:var(--blue); color:#fff; box-shadow:var(--shadow-1); }
.btn-primary:hover{ background:var(--blue-dark); }
.btn-ghost{ background:#fff; color:var(--blue); border-color:var(--line); }
.btn-ghost:hover{ background:var(--blue-tint); }
.btn-lg{ padding:14px 30px; font-size:0.98rem; }
.page{ max-width:820px; padding-block:36px 56px; }
.crumbs{ font-size:0.85rem; color:var(--text-faint); margin:0 0 14px; }
.crumbs a{ color:var(--text-soft); }
.page h1{ font-size:clamp(1.8rem,4vw,2.6rem); line-height:1.15; margin:0 0 16px; }
.lede{ font-size:1.12rem; color:var(--text-soft); margin:0 0 24px; }
.hero-ctas{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:20px; }
.facts{ list-style:none; padding:0; margin:0 0 32px; display:flex; flex-wrap:wrap; gap:8px; }
.facts li{ background:var(--blue-tint); color:var(--blue-dark); border-radius:999px; padding:6px 14px; font-size:0.85rem; font-weight:500; }
.prose h2{ font-size:1.5rem; margin:36px 0 12px; }
.prose p{ margin:0 0 16px; }
.prose ul{ margin:0 0 18px; padding-left:22px; }
.prose li{ margin-bottom:8px; }
.cta-band{ background:var(--bg-soft); border:1px solid var(--line); border-radius:18px; padding:28px; margin:40px 0; text-align:center; }
.cta-band h2{ font-size:1.4rem; margin-bottom:8px; }
.cta-band p{ color:var(--text-soft); margin:0 0 18px; }
.faq-wrap h2,.related h2{ font-size:1.5rem; margin-bottom:14px; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-item:first-child{ border-top:1px solid var(--line); }
.faq-q{ cursor:pointer; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:18px 4px; font-weight:500; list-style:none; }
.faq-q::-webkit-details-marker{ display:none; }
.faq-q .plus{ font-size:1.3rem; color:var(--blue); font-weight:400; flex:none; transition:transform .2s ease; }
.faq-item[open] .plus{ transform:rotate(45deg); }
.faq-a{ padding:0 4px 18px; margin:0; color:var(--text-soft); }
.related{ margin-top:40px; }
.related ul{ list-style:none; padding:0; margin:0 0 12px; display:flex; flex-wrap:wrap; gap:8px; }
.related li a{ display:inline-block; border:1px solid var(--line); border-radius:999px; padding:6px 16px; text-decoration:none; font-size:0.9rem; }
.related li a:hover{ background:var(--blue-tint); }
.site-foot{ background:var(--bg-soft); border-top:1px solid var(--line); padding-block:36px 28px; font-size:0.9rem; }
.foot-cols{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; margin-bottom:24px; }
.foot-cols h3{ font-size:0.8rem; text-transform:uppercase; letter-spacing:0.06em; color:var(--text-faint); margin-bottom:10px; font-weight:500; }
.foot-cols ul{ list-style:none; padding:0; margin:0; }
.foot-cols li{ margin-bottom:6px; }
.foot-cols a{ color:var(--text-soft); text-decoration:none; }
.foot-cols a:hover{ color:var(--blue); }
.foot-note{ color:var(--text-faint); font-size:0.82rem; margin:0; }
@media (max-width:640px){ .foot-cols{ grid-template-columns:1fr; } }
@media (prefers-reduced-motion:reduce){ *{ transition-duration:0.001ms !important; } }
/* homepage link section */
.sx-links{ padding-block:56px; border-top:1px solid var(--line); background:var(--bg-soft); }
.sx-links h2{ font-size:clamp(1.5rem,2.6vw,2rem); margin-bottom:10px; }
.sx-links p.sx-sub{ color:var(--text-soft); max-width:62ch; margin:0 0 24px; }
.sx-cols{ display:grid; grid-template-columns:1fr 1fr; gap:32px; }
.sx-cols h3{ font-size:1rem; margin-bottom:10px; }
.sx-cols ul{ list-style:none; padding:0; margin:0; display:flex; flex-wrap:wrap; gap:8px; }
.sx-cols a{ display:inline-block; background:#fff; border:1px solid var(--line); border-radius:999px; padding:7px 16px; text-decoration:none; color:var(--blue); font-size:0.9rem; }
.sx-cols a:hover{ background:var(--blue-tint); }
@media (max-width:720px){ .sx-cols{ grid-template-columns:1fr; } }