/* r3 - 翻转卡片风格 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC",sans-serif;background:#f1f5f9;color:#334155;font-size:15px;line-height:1.7}
a{color:#0ea5e9;text-decoration:none}
.r3-container{max-width:1100px;margin:0 auto;padding:0 20px}
.r3-nav{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;margin:12px 0;background:#fff;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,0.04)}.r3-nav .r3-brand{font-weight:800;font-size:17px;display:flex;align-items:center;gap:8px}.r3-nav .r3-brand img{height:28px}.r3-nav .r3-links{display:flex;gap:8px}.r3-nav .r3-links a{padding:6px 14px;border-radius:8px;font-size:13px;color:#64748b}.r3-nav .r3-links a:hover{background:#f0f9ff;color:#0ea5e9}.r3-nav .drop{position:relative}.r3-nav .drop-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:10px;min-width:150px;padding:4px 0;box-shadow:0 4px 20px rgba(0,0,0,0.06)}.r3-nav .drop:hover .drop-menu{display:block}.r3-nav .drop-menu a{display:block;padding:8px 16px;font-size:13px}
.r3-btn{display:inline-block;padding:9px 24px;border-radius:10px;font-size:13px;font-weight:700;cursor:pointer;border:none}.r3-btn-sky{background:#0ea5e9;color:#fff;box-shadow:0 4px 14px rgba(14,165,233,0.2)}.r3-btn-ghost{background:#fff;color:#0ea5e9;border:2px solid #e0f2fe}
.r3-hero{text-align:center;padding:60px 0 40px}.r3-hero .r3-badge{display:inline-block;padding:4px 16px;background:#e0f2fe;color:#0ea5e9;border-radius:50px;font-size:11px;font-weight:700;margin-bottom:16px}.r3-hero h1{font-size:40px;font-weight:800;margin-bottom:10px}.r3-hero p{color:#94a3b8;font-size:15px;max-width:480px;margin:0 auto 22px}
.r3-stats{display:flex;justify-content:space-around;padding:24px;background:#fff;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,0.03);margin:20px 0}.r3-stat .rs-val{font-size:30px;font-weight:800;color:#0ea5e9}.r3-stat .rs-lbl{font-size:12px;color:#94a3b8}
.r3-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;perspective:1000px}.r3-flip{height:260px;position:relative;transform-style:preserve-3d;transition:transform 0.6s;cursor:pointer}.r3-flip:hover{transform:rotateY(180deg)}.r3-flip .front,.r3-flip .back{position:absolute;inset:0;backface-visibility:hidden;border-radius:14px;overflow:hidden}.r3-flip .front{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.04)}.r3-flip .front img{width:100%;height:180px;object-fit:cover}.r3-flip .front .f-title{padding:14px 16px}.r3-flip .front .f-title h4{font-size:15px;font-weight:700}.r3-flip .back{background:#0ea5e9;color:#fff;transform:rotateY(180deg);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:24px;text-align:center}.r3-flip .back h4{font-size:18px;font-weight:700;margin-bottom:8px}.r3-flip .back p{font-size:13px;opacity:0.9}
.r3-hgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:30px 0}.r3-hcard{display:flex;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.03)}.r3-hcard .rh-img{width:190px;flex-shrink:0}.r3-hcard .rh-img img{width:100%;height:100%;object-fit:cover}.r3-hcard .rh-body{padding:22px}.r3-hcard .rh-body .rh-tag{display:inline-block;background:#e0f2fe;color:#0ea5e9;border-radius:4px;padding:2px 8px;font-size:10px;font-weight:700;margin-bottom:8px}.r3-hcard .rh-body h4{font-size:16px;font-weight:700}.r3-hcard .rh-body p{font-size:13px;color:#94a3b8}
.r3-faq .fq{background:#fff;border-radius:12px;margin-bottom:6px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.r3-faq .fq .q{padding:14px 20px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}.r3-faq .fq .q::after{content:'+'}.r3-faq .fq.open .q::after{content:'−'}.r3-faq .fq .a{padding:0 20px;max-height:0;overflow:hidden;transition:.3s;color:#94a3b8}.r3-faq .fq.open .a{padding:0 20px 14px;max-height:240px}
.r3-cta{text-align:center;padding:50px 0;background:linear-gradient(135deg,#f0f9ff,#fff);border-radius:16px;margin:30px 0}.r3-cta h2{font-size:28px;font-weight:800}.r3-cta p{color:#94a3b8;margin-bottom:22px}
.r3-partners{overflow:hidden;padding:24px 0}.r3-partners .track{display:flex;gap:16px;animation:r3p 24s linear infinite;width:fit-content}.r3-partners .item{flex-shrink:0;background:#fff;border-radius:10px;padding:12px 20px;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.r3-partners .item img{height:32px;opacity:0.5}.r3-partners .item:hover img{opacity:1}@keyframes r3p{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.r3-footer{background:#1e293b;color:#94a3b8;padding:40px 0 24px;font-size:13px;text-align:center}.r3-footer a{color:#94a3b8}.r3-footer a:hover{color:#0ea5e9}
.r3-detail{padding-top:24px}.r3-row{display:flex;gap:20px;flex-wrap:wrap}.r3-col-main{flex:2}.r3-col-side{flex:1;min-width:240px}.r3-pcard{background:#fff;border-radius:14px;margin-bottom:14px;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.r3-pcard-hd{padding:14px 18px;border-bottom:1px solid #f1f5f9;font-weight:700}.r3-pcard-bd{padding:18px}.r3-bread{font-size:12px;color:#94a3b8;padding:10px 0}.r3-art-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #f8fafc}.r3-art-item .art-t{width:150px;height:100px;border-radius:8px;overflow:hidden;flex-shrink:0}.r3-art-item .art-t img{width:100%;height:100%;object-fit:cover}.r3-art-item .art-i h4{font-size:14px;font-weight:700}.r3-art-item .art-i .art-d{font-size:12px;color:#94a3b8;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.r3-list-i{padding:8px 0;border-bottom:1px solid #fafafa}.r3-list-i a{color:#64748b;font-size:13px}.r3-tags{display:flex;gap:5px;flex-wrap:wrap}.r3-tags a{padding:4px 10px;background:#f0f9ff;color:#0ea5e9;border-radius:6px;font-size:11px}.r3-pag{display:flex;justify-content:center;gap:5px;padding:20px 0}.r3-pag a,.r3-pag span{padding:7px 12px;border:1px solid #e2e8f0;border-radius:8px;font-size:12px;color:#94a3b8}.r3-pag a:hover{background:#0ea5e9;color:#fff}.r3-pag .active span{background:#0ea5e9;color:#fff}.r3-404{text-align:center;padding:100px 20px}
@media(max-width:768px){.r3-nav{flex-wrap:wrap;gap:6px;justify-content:center}.r3-nav .r3-brand{width:100%;justify-content:center}.r3-grid3{grid-template-columns:1fr}.r3-hgrid{grid-template-columns:1fr}}
.r3-tagstrip a{padding:5px 16px;background:#e0f2fe;color:#0ea5e9;border-radius:50px;font-size:11px;font-weight:600}.r3-tagstrip a:hover{background:#0ea5e9;color:#fff}
.r3-icon{text-align:center;padding:26px 18px;background:#fff;border-radius:14px;box-shadow:0 2px 10px rgba(0,0,0,0.03)}.r3-icon .pi-img{width:54px;height:54px;margin:0 auto 12px;overflow:hidden;border-radius:10px}.r3-icon .pi-img img{width:100%;height:100%;object-fit:cover}.r3-icon h4{font-size:14px;font-weight:700}.r3-icon p{font-size:12px;color:#888}
.r3-review{text-align:center;padding:22px 16px;background:#fff;border-radius:14px;box-shadow:0 2px 10px rgba(0,0,0,0.03)}.r3-review .pr-stars{font-size:14px;color:#f59e0b;margin-bottom:6px}.r3-review .pr-text{font-size:12px;color:#666;line-height:1.7}.r3-review .pr-name{font-weight:700;font-size:12px;margin-top:6px}
@media(max-width:768px){.r3-icons{grid-template-columns:1fr 1fr}.r3-reviews{grid-template-columns:1fr}}