.btu-why-band{background:linear-gradient(180deg,#f6f8ff 0%,#ffffff 100%)}.btu-why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:1100px;margin:0 auto;}.btu-why-card{background:#fff;border:1px solid #e5e9f5;border-radius:18px;padding:30px 26px 28px;text-align:left;transition:transform .22s,box-shadow .22s,border-color .22s;position:relative;overflow:hidden;}.btu-why-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--btu-why-color);opacity:0;transition:opacity .2s;}.btu-why-card:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(15,23,42,0.10);border-color:var(--btu-why-color);}.btu-why-card:hover::before{opacity:1}.btu-why-icon{width:54px;height:54px;border-radius:14px;background:color-mix(in srgb,var(--btu-why-color) 10%,#fff);color:var(--btu-why-color);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;}.btu-why-card h4{font-size:17px;font-weight:800;color:#0f172a;margin:0 0 8px;letter-spacing:-0.01em;}.btu-why-card p{color:#475569;font-size:14px;line-height:1.55;margin:0;}@media (max-width:980px){.btu-why-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.btu-why-grid{grid-template-columns:1fr}}