.bti-page{--primary:#1a3c5e;--accent:#d4a534;--accent-hover:#c4951f;--bg:#f8f9fa;--white:#fff;--text:#2d2d2d;--text-light:#6b7280;--border:#e5e7eb;--gradient:linear-gradient(135deg,#1a3c5e 0%,#2d5a8e 100%);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);line-height:1.6}
.bti-hero{background:var(--gradient);padding:60px 20px 50px;color:var(--white);text-align:center}
.bti-hero h1{font-size:clamp(28px,5vw,44px);font-weight:800;margin-bottom:16px;line-height:1.2}
.bti-hero h1 em{font-style:normal;color:var(--accent)}
.bti-hero p{font-size:18px;max-width:700px;margin:0 auto 24px;opacity:.9}
.bti-btn{display:inline-block;background:var(--accent);color:var(--primary)!important;padding:14px 36px;border-radius:8px;text-decoration:none!important;font-weight:700;font-size:16px;transition:all .3s;margin:6px}
.bti-btn:hover{background:var(--accent-hover);transform:translateY(-2px);color:var(--primary)!important}
.bti-btn.outline{background:transparent;color:var(--white)!important;border:2px solid var(--white)}
.bti-btn.outline:hover{background:rgba(255,255,255,.1);color:#fff!important}
.bti-section{max-width:1100px;margin:0 auto;padding:50px 20px}
.bti-section-title{font-size:clamp(24px,4vw,34px);font-weight:800;color:var(--primary);text-align:center;margin-bottom:12px}
.bti-section-sub{text-align:center;color:var(--text-light);margin-bottom:40px;font-size:16px}
.bti-table{width:100%;border-collapse:collapse;background:var(--white);border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);margin-bottom:16px}
.bti-table thead{background:var(--primary);color:var(--white)}
.bti-table th{padding:14px 20px;text-align:left;font-weight:600}
.bti-table td{padding:14px 20px;border-bottom:1px solid var(--border)}
.bti-table tbody tr:hover{background:#f0f5ff}
.bti-price{color:var(--accent-hover);font-weight:700;font-size:17px}
.bti-table .bti-cat{background:#f0f5ff;font-weight:700;color:var(--primary)}
.bti-note{color:var(--text-light);font-size:13px;margin-top:8px}
.bti-docs{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:30px}
.bti-doc{background:var(--white);padding:20px 24px;border-radius:10px;display:flex;align-items:center;gap:14px;box-shadow:0 2px 10px rgba(0,0,0,.05);border-left:4px solid var(--accent)}
.bti-doc-icon{width:44px;height:44px;background:#fef3c7;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.bti-doc span{font-weight:500}
.bti-block{background:var(--white);border-radius:14px;padding:40px;box-shadow:0 4px 20px rgba(0,0,0,.06);margin-bottom:30px}
.bti-block h2{font-size:24px;color:var(--primary);margin-bottom:16px;padding-bottom:12px;border-bottom:3px solid var(--accent);display:inline-block}
.bti-block h3{font-size:19px;color:var(--primary);margin:20px 0 10px}
.bti-block p{margin-bottom:14px;line-height:1.7}
.bti-block ul,.bti-block ol{margin:10px 0 14px 24px}
.bti-block li{margin-bottom:8px;line-height:1.6}
.bti-cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:30px}
.bti-case{background:var(--white);border-radius:12px;padding:24px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:transform .3s;border-top:3px solid var(--accent)}
.bti-case:hover{transform:translateY(-4px)}
.bti-case-num{font-size:32px;font-weight:800;color:var(--accent);margin-bottom:8px}
.bti-case h3{font-size:15px;color:var(--primary);margin:0}
.bti-faq{background:var(--white);border-radius:10px;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden}
.bti-faq-q{width:100%;border:none;background:none;padding:18px 24px;font-size:16px;font-weight:600;color:var(--primary);text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s;font-family:inherit}
.bti-faq-q:hover{background:#f0f5ff}
.bti-faq-q::after{content:'\25BC';font-size:12px;transition:transform .3s;color:var(--accent)}
.bti-faq.open .bti-faq-q::after{transform:rotate(180deg)}
.bti-faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s;padding:0 24px;color:var(--text-light);line-height:1.7}
.bti-faq.open .bti-faq-a{max-height:300px;padding:0 24px 18px}
.bti-cta{background:var(--gradient);padding:40px 20px;text-align:center;color:var(--white)}
.bti-cta h2{font-size:28px;margin-bottom:12px;color:#fff}
.bti-cta p{opacity:.9;margin-bottom:20px;font-size:16px}
.bti-crumbs{max-width:1100px;margin:0 auto;padding:16px 20px 0;font-size:14px;color:var(--text-light)}
.bti-crumbs a{color:var(--primary);text-decoration:none}
.bti-crumbs a:hover{text-decoration:underline}
@media(max-width:768px){.bti-block{padding:24px 18px}.bti-table th,.bti-table td{padding:10px 12px;font-size:14px}}