:root{--ink:#123047;--muted:#66758a;--purple:#7650df;--purple-dark:#5f38c4;--green:#10a982;--bg:#f7faf9;--line:#dce6e5;--white:#fff;--soft-purple:#f3efff;--soft-green:#eaf9f4;--shadow:0 18px 50px rgba(26,62,70,.08)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.6}
a{color:inherit}
.wrap{width:min(1160px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(255,255,255,.95);backdrop-filter:blur(10px)}
.header-in{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:850}
.brand-mark{position:relative;width:31px;height:31px;transform:rotate(45deg);border-radius:8px;background:linear-gradient(135deg,var(--green) 0 49%,var(--purple) 51%)}
.brand-copy{display:grid;line-height:1.05}.brand-copy small{margin-top:5px;color:var(--muted);font-size:9px;letter-spacing:.11em;text-transform:uppercase}
.header-actions{display:flex;align-items:center;gap:12px}.header-actions a{text-decoration:none;font-size:14px;font-weight:750}
.text-link{color:#36546b}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:11px;text-decoration:none;font-weight:800;transition:.18s ease}.button:hover{transform:translateY(-1px)}
.button.primary{background:linear-gradient(135deg,var(--purple),#6840e8);color:#fff;box-shadow:0 10px 25px rgba(118,80,223,.22)}
.button.secondary{border:1px solid rgba(118,80,223,.38);background:#fff;color:var(--purple-dark)}
.breadcrumb{padding:22px 0 0;color:var(--muted);font-size:13px}.breadcrumb a{text-decoration:none}.breadcrumb span{margin:0 8px;color:#98a6b5}
.hero{padding:34px 0 38px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;align-items:start}.eyebrow{display:inline-flex;padding:7px 11px;border:1px solid #bde9da;border-radius:999px;background:var(--soft-green);color:#087b60;font-size:11px;font-weight:900;letter-spacing:.08em}
.review-date{margin:11px 0 0;color:var(--muted);font-size:13px;font-weight:700}
h1{max-width:850px;margin:18px 0 14px;font-size:clamp(39px,5.3vw,66px);line-height:1.02;letter-spacing:-.045em}.lead{max-width:750px;margin:0;color:var(--muted);font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.notice{margin-top:22px;padding:13px 16px;border:1px solid #d7e5ec;border-radius:10px;background:#f1f7fa;color:#496579;font-size:13px}
.toc,.sidebar-cta,.card,.source,.related-card,.faq details{border:1px solid var(--line);border-radius:14px;background:var(--white);box-shadow:0 10px 32px rgba(30,60,70,.04)}
.toc{padding:22px}.toc h2,.sidebar-cta h2{margin:0 0 13px;font-size:18px}.toc ol{list-style:none;margin:0;padding:0;counter-reset:item}.toc li{counter-increment:item}.toc a{display:flex;gap:10px;align-items:center;padding:8px 0;text-decoration:none;color:#40596d;font-size:13px}.toc a:before{content:counter(item);display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:#eef3f5;color:#33556c;font-weight:800}
.sidebar-cta{margin-top:14px;padding:22px;background:linear-gradient(145deg,#f7f4ff,#eeeaff)}.sidebar-cta p{margin:0 0 15px;color:var(--muted);font-size:14px}.sidebar-cta .button{width:100%}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;padding-bottom:52px}.article-section{scroll-margin-top:95px;margin-bottom:42px}.article-section h2{margin:0 0 8px;font-size:clamp(28px,3vw,38px);line-height:1.15;letter-spacing:-.025em}.section-intro{margin:0 0 18px;color:var(--muted)}
.requirements{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{padding:20px}.number{display:grid;place-items:center;width:32px;height:32px;margin-bottom:15px;border-radius:50%;background:var(--soft-purple);color:var(--purple-dark);font-weight:900}.card h3{margin:0 0 8px;font-size:17px;line-height:1.3}.card p{margin:0;color:var(--muted);font-size:14px}
.subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.subject{padding:20px}.subject-icon{display:grid;place-items:center;width:38px;height:38px;margin-bottom:13px;border-radius:10px;background:var(--soft-green);color:#07815f;font-weight:900}.subject:nth-child(2) .subject-icon{background:var(--soft-purple);color:var(--purple)}.subject:nth-child(3) .subject-icon{background:#fff3e9;color:#d87021}
.regional-note{padding:19px 20px;border:1px solid #bde9da;border-radius:13px;background:var(--soft-green);color:#315e54}.regional-note strong{color:#087b60}
.steps{display:grid;gap:12px}.step{display:grid;grid-template-columns:40px 1fr;gap:14px;padding:16px 18px;border-left:3px solid var(--purple);border-radius:10px;background:#fff}.step b{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--soft-purple);color:var(--purple-dark)}.step h3{margin:0 0 3px;font-size:16px}.step p{margin:0;color:var(--muted);font-size:14px}
.faq{display:grid;gap:10px}.faq details{padding:0 18px}.faq summary{cursor:pointer;padding:16px 0;font-weight:800}.faq p{margin:0;padding:0 0 17px;color:var(--muted)}
.sources{display:grid;gap:10px}.source{display:flex;justify-content:space-between;gap:20px;padding:16px 18px;text-decoration:none}.source span{color:var(--muted);font-size:13px}.source strong{display:block;color:var(--ink)}.source b{align-self:center;color:var(--purple);white-space:nowrap}
.final-cta{display:flex;align-items:center;justify-content:space-between;gap:25px;margin:10px 0 42px;padding:28px;border-radius:16px;background:linear-gradient(120deg,#7446dc,#3969e6);color:#fff}.final-cta h2{margin:0 0 4px;font-size:27px}.final-cta p{margin:0;color:#ece9ff}.final-cta .button{background:#fff;color:var(--purple-dark);white-space:nowrap}
.related{padding-bottom:58px}.related h2{font-size:28px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-card{padding:18px;text-decoration:none}.related-card small{color:var(--green);font-weight:900}.related-card h3{margin:8px 0 5px;font-size:17px}.related-card p{margin:0;color:var(--muted);font-size:13px}
.site-footer{border-top:1px solid var(--line);background:#fff}.footer-in{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:100px;color:var(--muted);font-size:13px}.footer-links{display:flex;flex-wrap:wrap;gap:18px}.footer-links a{text-decoration:none}
@media(max-width:900px){.hero-grid,.content-layout{grid-template-columns:1fr}.hero-aside{display:none}.requirements,.subjects{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr}.final-cta{align-items:flex-start;flex-direction:column}.content-layout{padding-bottom:15px}}
@media(max-width:600px){.wrap{width:min(100% - 28px,1160px)}.header-in{min-height:64px}.header-actions .text-link{display:none}.header-actions .button{min-height:40px;padding:0 13px;font-size:12px}.brand-copy{font-size:14px}h1{font-size:39px}.lead{font-size:16px}.hero-actions{display:grid}.hero-actions .button{width:100%}.source{align-items:flex-start;flex-direction:column}.footer-in{align-items:flex-start;flex-direction:column;padding:25px 0}.final-cta{padding:22px}}