:root{
 --ink:#112640; --muted:#667589; --blue:#1285df; --blue2:#0a66bd; --pale:#eef7ff;
 --line:#dce8f2; --white:#fff; --soft:#f7fafd; --shadow:0 16px 45px rgba(28,61,96,.10);
 --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:17px;line-height:1.65}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}
.site-head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head-row{min-height:74px;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(145deg,var(--blue),var(--blue2));display:grid;place-items:center;color:#fff;font-weight:900;font-size:20px;box-shadow:0 8px 20px rgba(18,133,223,.2)}
.brand span:last-child{display:flex;flex-direction:column;line-height:1.05}
.brand b{font-size:20px}.brand small{font-size:12px;color:var(--muted);margin-top:5px;font-weight:500}
.nav{display:flex;gap:26px}.nav a{text-decoration:none;font-size:15px;font-weight:700}.nav a:hover{color:var(--blue)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font-size:20px}
.article-hero{background:linear-gradient(120deg,#f7fbff 0%,#eef7ff 48%,#fff 100%);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:54px;padding:56px 0}
.hero-copy h1{font-size:clamp(38px,5vw,66px);line-height:1.02;letter-spacing:-.035em;margin:12px 0 22px;max-width:780px}
.hero-copy p{font-size:20px;line-height:1.5;color:#52647a;max-width:690px;margin:0}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.19em;color:var(--blue2);font-weight:900}
.hero-grid>img{border-radius:28px;aspect-ratio:3/2;object-fit:cover;box-shadow:var(--shadow);width:100%}
.crumbs{display:flex;gap:8px;font-size:13px;color:var(--muted);padding-top:18px}.crumbs a{text-decoration:none}
.article-layout{display:block;max-width:960px;padding:48px 0 72px}
.article{min-width:0}
.article h2{font-size:31px;line-height:1.18;letter-spacing:-.025em;margin:46px 0 16px}
.article h3{font-size:22px}
.article p{margin:0 0 19px}
.lead{font-size:21px;line-height:1.6;color:#334b66}
.note,.source-note{background:var(--pale);border:1px solid #cfe7fb;border-radius:18px;padding:20px 22px;margin:28px 0}
.source-note{font-size:14px;color:#536b82}
.route-panel{margin:34px 0;padding:32px;border-radius:26px;color:#fff;display:grid;grid-template-columns:1fr auto;align-items:center;gap:28px;box-shadow:0 22px 52px rgba(7,70,126,.24);position:relative;overflow:hidden;border:4px solid rgba(111,209,255,.98);animation:routePulse 1.35s ease-in-out infinite;background-size:cover;background-position:center center;background-repeat:no-repeat}


.route-label{display:inline-block;font-size:12px;text-transform:uppercase;letter-spacing:.16em;font-weight:900;opacity:.8}
.route-panel h2{font-size:28px;margin:8px 0 8px;color:#fff;position:relative;z-index:1;text-shadow:0 2px 12px rgba(0,24,48,.38)}
.route-panel p{margin:0;max-width:650px;color:#eef8ff;position:relative;z-index:1;text-shadow:0 1px 8px rgba(0,24,48,.34)}
.route-button,.reference-button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;background:#fff;color:#0a5ca9;border-radius:14px;padding:15px 21px;font-weight:900;white-space:nowrap;position:relative;z-index:1;box-shadow:0 10px 30px rgba(0,31,65,.18)}
.route-button span{padding-left:11px}
.route-panel .route-copy,.route-panel .route-button{position:relative;z-index:1}
.steps{list-style:none;padding:0;margin:26px 0;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:46px 1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.steps li:before{content:counter(s);width:38px;height:38px;border-radius:11px;background:var(--pale);color:var(--blue2);display:grid;place-items:center;font-weight:900}
.steps li strong{display:block;grid-column:2;font-size:18px;margin-bottom:3px}.steps li span{grid-column:2;color:#506276}
.checklist{list-style:none;padding:0}.checklist li{position:relative;padding:9px 0 9px 34px}.checklist li:before{content:"✓";position:absolute;left:0;top:9px;width:23px;height:23px;border-radius:50%;background:#e6f6ee;color:#13884a;display:grid;place-items:center;font-size:13px;font-weight:900}
.faq details{border-top:1px solid var(--line);padding:17px 0}.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:800}.faq details p{margin:12px 0 0;color:#52647a}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.related-card{text-decoration:none;border:1px solid var(--line);border-radius:17px;padding:18px;background:#fff;display:flex;flex-direction:column;gap:8px;min-width:0}
.related-card span{font-weight:800}.related-card small{color:var(--blue2);font-weight:800}
.home-intro{padding:8px 0 16px}.home-intro h2{font-size:34px}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin:58px 0 22px}.section-head h2{font-size:38px;margin:6px 0 0}.section-head p{max-width:430px;color:var(--muted);margin:0}
.materials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.material-card{text-decoration:none;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;transition:.2s transform,.2s box-shadow;min-width:0}
.material-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.material-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.material-card>div{padding:18px}.material-card h2{font-size:21px;line-height:1.2;margin:7px 0 10px}.material-card p{font-size:14px;line-height:1.5;color:var(--muted);margin:0 0 12px}.material-card small{color:var(--blue2);font-weight:900}
.card-tag{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:var(--blue2);font-weight:900}
.home-questions{margin:70px 0}.home-questions h2{font-size:38px;margin:8px 0 22px}.question-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.question-grid>div{background:var(--soft);border:1px solid var(--line);padding:22px;border-radius:18px}.question-grid b{font-size:18px}.question-grid p{margin:8px 0 0;color:var(--muted)}
.site-foot{border-top:1px solid var(--line);background:#f9fbfd}.foot-row{min-height:86px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:14px;color:var(--muted)}
@keyframes routePulse{
  0%,100%{box-shadow:0 22px 52px rgba(7,70,126,.24),0 0 0 1px rgba(98,201,255,.78),0 0 20px rgba(60,178,255,.22);border-color:rgba(111,209,255,.98)}
  50%{box-shadow:0 22px 52px rgba(7,70,126,.28),0 0 0 6px rgba(91,198,255,.24),0 0 42px rgba(50,177,255,.55);border-color:#d6f4ff}
}
  50%{border-color:rgba(181,232,255,1);box-shadow:0 22px 54px rgba(7,70,126,.28),0 0 0 5px rgba(35,174,255,.22),0 0 30px rgba(35,174,255,.70)}
}
@media(max-width:980px){
 .article-layout{grid-template-columns:1fr}.hero-grid{grid-template-columns:1fr;gap:28px}
 .materials-grid{grid-template-columns:repeat(2,1fr)}
 .reference-card h2,.reference-card p{grid-column:1}}
@media(max-width:720px){
 body{font-size:16px}.wrap{width:min(100% - 26px,1180px)}.head-row{min-height:64px}
 .brand small{display:none}.nav{display:none;position:absolute;top:64px;left:13px;right:13px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:var(--shadow);flex-direction:column}
 .nav.is-open{display:flex}.menu-toggle{display:block}
 .hero-grid{padding:36px 0}.hero-copy h1{font-size:40px}.hero-copy p{font-size:17px}.article-layout{padding-top:30px}
 .article h2{font-size:27px}.lead{font-size:18px}
 .route-panel{grid-template-columns:1fr;padding:24px}.route-button{width:100%}.route-panel:before, .materials-grid,.question-grid,.related-grid{grid-template-columns:1fr}
 .section-head{display:block}.section-head h2,.home-questions h2{font-size:31px}
  .foot-row{align-items:flex-start;flex-direction:column;justify-content:center;padding:20px 0}
}