:root{--blue:#0c254a;--blue2:#163c72;--gold:#d7a84f;--light:#f5f7fb;--gray:#657084;--line:#dfe5ef;--white:#fff;--shadow:0 18px 45px rgba(12,37,74,.12)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#172033;background:#fff;line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto;display:block}.container{width:min(1180px,92vw);margin:0 auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--blue);font-size:22px}.brand img{width:42px}.main-nav{display:flex;align-items:center;gap:24px;color:#27344a;font-size:15px}.main-nav a:hover{color:var(--blue2)}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 22px;font-weight:700}.nav-cta,.btn-primary{background:var(--blue);color:#fff!important}.btn-gold{background:var(--gold);color:#1d2432}.btn-light{background:#fff;color:var(--blue);border:1px solid var(--line)}.nav-toggle{display:none;background:none;border:0;gap:5px;flex-direction:column}.nav-toggle span{display:block;width:24px;height:2px;background:var(--blue)}.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#081b36 0%,#123b73 62%,#f3f6fb 62%,#fff 100%);padding:72px 0 64px;color:#fff}.hero-grid,.split,.contact-grid,.video-hero{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}.eyebrow{color:var(--gold);font-weight:800;letter-spacing:.08em}.hero h1,.page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;margin:12px 0 18px}.hero p{font-size:18px;color:#e9eef8}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}.hero-points span,.tag{border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:10px 12px;background:rgba(255,255,255,.08);font-size:14px}.hero-card{background:#fff;border-radius:30px;padding:24px;box-shadow:var(--shadow);color:#172033}.hero-card img{border-radius:22px}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.stat{padding:14px;border-radius:18px;background:var(--light);text-align:center}.stat strong{display:block;color:var(--blue);font-size:22px}.section{padding:76px 0}.section.alt{background:var(--light)}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}.section-head h2,.page-section h2{font-size:clamp(26px,3.6vw,40px);line-height:1.25;margin:6px 0;color:var(--blue)}.section-head 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.answer{display:block}.cta-band{background:linear-gradient(135deg,#0c254a,#19467e);color:#fff;border-radius:34px;padding:42px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.cta-band p{color:#dce7f7}.page-hero{background:linear-gradient(135deg,#0b2448,#163f76);color:#fff;padding:62px 0}.page-hero p{max-width:760px;color:#e5edf8;font-size:18px}.breadcrumb{color:#cdd8e9;font-size:14px}.page-section{padding:64px 0}.course-row{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start;border-bottom:1px solid var(--line);padding:28px 0}.course-row img{border-radius:22px;background:var(--light)}.article-list{display:grid;gap:18px}.article{display:grid;grid-template-columns:180px 1fr;gap:22px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.article 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.mt-24{margin-top:24px}.mt-20{margin-top:20px}