:root{--bt-blue:#015aac;--bt-navy:#0f2440;--bt-orange:#ff6b2c;--bt-soft:#f3f8ff;--bt-border:#d9e7f6;--bt-text:#31465f;--bt-green:#22a755}
.bt-info-page{background:#f5f9fd;color:var(--bt-text)}
.bt-info-main{background:linear-gradient(180deg,#eef6ff 0,#fff 360px,#fff 100%);font-family:Arial,'Helvetica Neue',sans-serif}
.bt-info-wrap{width:min(1180px,calc(100% - 32px));margin:0 auto}
.bt-info-hero{padding:54px 0 42px;background:linear-gradient(135deg,#edf7ff 0%,#fff 65%);border-bottom:1px solid var(--bt-border)}
.bt-info-hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) 420px;gap:30px;align-items:center}
.bt-info-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--bt-border);border-radius:999px;padding:9px 14px;color:var(--bt-blue);font-weight:800;font-size:14px;box-shadow:0 10px 28px rgba(1,90,172,.08);margin-bottom:18px}
.bt-info-eyebrow i{color:var(--bt-orange)}
.bt-info-hero h1{margin:0 0 16px;color:#10213a;font-size:clamp(34px,4.4vw,62px);line-height:1.02;font-weight:900;letter-spacing:-1.8px}
.bt-info-hero p{font-size:18px;line-height:1.75;color:#52667e;max-width:760px;margin:0}
.bt-info-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.bt-info-cta{display:inline-flex;align-items:center;justify-content:center;min-height:46px;border-radius:14px;padding:0 22px;font-weight:900;text-decoration:none!important;border:1px solid transparent;transition:.2s ease}.bt-info-cta-orange{background:linear-gradient(135deg,var(--bt-orange),#f05a21);color:#fff!important;box-shadow:0 16px 28px rgba(255,107,44,.22)}.bt-info-cta-light{background:#fff;color:var(--bt-blue)!important;border-color:var(--bt-border)}.bt-info-cta:hover{transform:translateY(-1px)}
.bt-info-panel{background:#fff;border:1px solid var(--bt-border);border-radius:26px;padding:28px;box-shadow:0 24px 60px rgba(16,33,58,.10)}.bt-info-panel strong{display:block;color:#10213a;font-size:24px;margin-bottom:12px}.bt-info-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}.bt-info-panel li{position:relative;padding-left:26px;font-weight:700;color:#435b74}.bt-info-panel li:before{content:'✓';position:absolute;left:0;top:0;color:var(--bt-green);font-weight:900}
.bt-info-strip{background:#fff;border-bottom:1px solid var(--bt-border)}.bt-info-strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:18px 0}.bt-info-strip-grid span{display:flex;align-items:center;gap:10px;border:1px solid var(--bt-border);border-radius:16px;background:#f8fbff;padding:16px 18px;font-weight:900;color:#173252}.bt-info-strip-grid i{color:var(--bt-blue)}
.bt-info-section{padding:56px 0}.bt-info-soft{background:#f5f9fd;border-top:1px solid var(--bt-border);border-bottom:1px solid var(--bt-border)}.bt-info-head{text-align:center;max-width:850px;margin:0 auto 32px}.bt-info-head span{display:inline-block;color:var(--bt-orange);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:13px;margin-bottom:8px}.bt-info-head h2{font-size:clamp(28px,3.4vw,44px);line-height:1.1;color:#10213a;margin:0 0 12px;font-weight:900;letter-spacing:-.9px}.bt-info-head p{font-size:17px;line-height:1.75;color:#5a6d82;margin:0}
.bt-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.bt-guide-card{background:#fff;border:1px solid var(--bt-border);border-radius:24px;overflow:hidden;box-shadow:0 18px 50px rgba(16,33,58,.08);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}.bt-guide-media{background:#ecf5ff;min-height:230px;display:flex;align-items:center;justify-content:center}.bt-guide-media iframe{width:100%;height:100%;min-height:260px;border:0;display:block}.bt-guide-media img{width:100%;height:100%;object-fit:cover;display:block}.bt-guide-body{padding:24px;display:flex;flex-direction:column}.bt-guide-tag,.bt-ref-body span{display:inline-flex;width:max-content;background:#eef8ff;color:var(--bt-blue);border:1px solid var(--bt-border);border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900;margin-bottom:12px}.bt-guide-body h3,.bt-ref-body h3{font-size:22px;line-height:1.22;color:#10213a;font-weight:900;margin:0 0 12px}.bt-guide-body p,.bt-ref-body p{color:#536a82;line-height:1.65;margin:0}.bt-guide-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #edf3fa}.bt-guide-foot span{font-weight:800;color:#3d536a}.bt-guide-foot i{color:var(--bt-green)}.bt-guide-foot a{background:var(--bt-blue);color:#fff!important;text-decoration:none!important;border-radius:12px;padding:10px 14px;font-weight:900;white-space:nowrap}
.bt-ref-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.bt-ref-card{background:#fff;border:1px solid var(--bt-border);border-radius:22px;padding:18px;box-shadow:0 16px 42px rgba(16,33,58,.07);display:flex;flex-direction:column;min-height:280px}.bt-ref-logo{height:110px;border-radius:18px;background:#f8fbff;border:1px solid #edf3fa;display:flex;align-items:center;justify-content:center;padding:14px;margin-bottom:16px}.bt-ref-logo img{max-width:100%;max-height:86px;object-fit:contain}.bt-ref-body h3{font-size:18px}.bt-ref-body p{font-size:14px}.bt-info-two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.bt-info-card{background:#fff;border:1px solid var(--bt-border);border-radius:24px;padding:28px;box-shadow:0 18px 45px rgba(16,33,58,.07)}.bt-info-card h2{font-size:28px;color:#10213a;margin:0 0 12px;font-weight:900}.bt-info-card p{font-size:16px;line-height:1.75;color:#536a82;margin:0}
@media(max-width:1100px){.bt-info-hero-grid{grid-template-columns:1fr}.bt-info-panel{max-width:none}.bt-guide-grid{grid-template-columns:1fr}.bt-ref-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.bt-info-wrap{width:calc(100% - 24px)}.bt-info-hero{padding:34px 0}.bt-info-hero h1{font-size:36px;letter-spacing:-1px}.bt-info-hero p{font-size:16px}.bt-info-actions{display:grid;grid-template-columns:1fr}.bt-info-strip-grid{grid-template-columns:1fr}.bt-guide-card{grid-template-columns:1fr}.bt-guide-media iframe{min-height:220px}.bt-guide-foot{align-items:flex-start;flex-direction:column}.bt-ref-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.bt-ref-card{padding:14px;min-height:240px}.bt-info-two-col{grid-template-columns:1fr}.bt-info-section{padding:38px 0}.bt-info-panel{padding:22px;border-radius:22px}}
@media(max-width:480px){.bt-ref-grid{grid-template-columns:1fr}.bt-ref-card{min-height:auto}.bt-info-head{text-align:left}.bt-guide-body{padding:20px}.bt-info-card{padding:22px}.bt-info-card h2{font-size:24px}}