.why-feichuan{position:relative;width:min(100%,930px);margin:36px auto 0;padding:34px 30px 30px;overflow:hidden;border:1px solid #d6e6fb;border-radius:22px;color:#14203a;background:radial-gradient(circle at 16% 8%,rgba(80,147,255,.18),transparent 31%),radial-gradient(circle at 94% 92%,rgba(150,204,255,.18),transparent 29%),linear-gradient(135deg,#edf5ff,#f8fbff 58%,#eaf3ff);box-shadow:0 14px 30px rgba(35,91,165,.08)}
.why-feichuan::before{position:absolute;inset:0;opacity:.42;pointer-events:none;content:"";background-image:linear-gradient(rgba(92,152,232,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(92,152,232,.1) 1px,transparent 1px);background-size:27px 27px}.why-feichuan>header,.why-grid{position:relative}.why-feichuan>header{text-align:center}.why-feichuan h2{margin:0;color:#1a365d;font-size:25px;letter-spacing:-.55px}.why-feichuan>header p{margin:9px auto 0;color:#697f9d;font-size:14px;line-height:1.65}.why-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px;margin-top:25px}.why-grid article{min-height:190px;padding:18px;border:1px solid rgba(172,204,241,.64);border-radius:16px;background:rgba(255,255,255,.84);box-shadow:inset 0 1px rgba(255,255,255,.7),0 5px 14px rgba(40,95,165,.045);transition:transform .18s ease,border-color .18s ease,background .18s ease}.why-grid article:hover{border-color:#a9cdfc;background:#fff;transform:translateY(-3px)}
.why-icon{width:40px;height:40px;display:grid;place-items:center;margin-bottom:16px;border:1px solid #c9e0ff;border-radius:12px;color:#1769f5;background:#eaf3ff}.why-icon svg{width:21px;height:21px}.why-grid h3{margin:0 0 8px;color:#244568;font-size:15px;line-height:1.4}.why-grid p{margin:0;color:#71829a;font-size:13px;line-height:1.65}.header-invite-section{display:contents}.header-invite-section[hidden]{display:none!important}.header-invite-link{gap:7px}.header-invite-link svg{width:16px;height:16px;color:#4e8ff5}
@media(max-width:800px){.why-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:480px){.why-feichuan{margin-top:24px;padding:27px 18px 18px}.why-grid{grid-template-columns:1fr;margin-top:20px}.why-grid article{min-height:0}}
.why-feichuan{border:1px solid rgba(76,127,220,.10);border-radius:18px;background:linear-gradient(rgba(80,135,240,.048) 1px,transparent 1px),linear-gradient(90deg,rgba(80,135,240,.048) 1px,transparent 1px),linear-gradient(180deg,rgba(242,247,255,.94),rgba(237,245,255,.84));background-size:28px 28px,28px 28px,auto;box-shadow:0 14px 30px rgba(35,91,165,.055)}.why-feichuan::before{display:none}.why-grid article{border-color:rgba(67,113,198,.11);border-radius:14px;background:rgba(255,255,255,.95);box-shadow:0 8px 24px rgba(40,82,160,.055);transition:transform 160ms ease,box-shadow 160ms ease}.why-grid article:hover{border-color:rgba(67,113,198,.16);background:rgba(255,255,255,.98);transform:translateY(-2px);box-shadow:0 12px 30px rgba(40,82,160,.075)}
.why-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.why-grid article{min-height:206px;padding:16px}.why-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:15px}.why-icon{margin-bottom:0}.why-step{padding-top:3px;color:#9ab0cd;font-size:12px;font-weight:750;letter-spacing:.08em}@media(max-width:800px){.why-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.why-grid article{min-height:0}.why-grid article:last-child{grid-column:1/-1}}@media(max-width:480px){.why-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.why-grid article{padding:15px}.why-card-head{margin-bottom:13px}.why-grid h3{font-size:14px}.why-grid p{font-size:12px}}