/* p4 - 渐变网格风格 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC",sans-serif;background:#fafbff;color:#1e293b;font-size:15px;line-height:1.7}
a{color:#7c3aed;text-decoration:none}a:hover{color:#6d28d9}
.p4-container{max-width:1150px;margin:0 auto;padding:0 20px}
.p4-nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid #e2e8f0;margin-bottom:30px}.p4-nav .p4-brand{font-weight:800;font-size:17px;display:flex;align-items:center;gap:8px}.p4-nav .p4-brand img{height:28px}.p4-nav .p4-links{display:flex;gap:16px}.p4-nav .p4-links a{font-size:13px;color:#64748b}.p4-nav .p4-links a:hover{color:#7c3aed}.p4-nav .drop{position:relative}.p4-nav .drop-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:10px;min-width:160px;padding:4px 0;box-shadow:0 4px 20px rgba(0,0,0,0.08)}.p4-nav .drop:hover .drop-menu{display:block}.p4-nav .drop-menu a{display:block;padding:8px 16px;font-size:13px}
.p4-btn{display:inline-block;padding:9px 22px;border-radius:8px;font-size:13px;font-weight:700;cursor:pointer;border:none}.p4-btn-primary{background:linear-gradient(135deg,#7c3aed,#a855f7);color:#fff;box-shadow:0 4px 16px rgba(124,58,237,0.2)}.p4-btn-primary:hover{transform:translateY(-1px)}
.p4-hero{position:relative;overflow:hidden;padding:70px 0 50px;text-align:center}.p4-hero::before{content:'';position:absolute;top:-100px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(124,58,237,0.06),transparent);border-radius:50%}.p4-hero::after{content:'';position:absolute;bottom:-100px;left:-200px;width:500px;height:500px;background:radial-gradient(circle,rgba(6,182,212,0.05),transparent);border-radius:50%}.p4-hero>*{position:relative;z-index:1}.p4-hero .p4-tag{display:inline-block;padding:4px 16px;background:linear-gradient(135deg,rgba(124,58,237,0.06),rgba(168,85,247,0.06));border:1px solid rgba(124,58,237,0.1);border-radius:50px;font-size:11px;font-weight:700;color:#7c3aed;margin-bottom:20px}.p4-hero h1{font-size:44px;font-weight:800;line-height:1.1;margin-bottom:12px}.p4-hero h1 span{background:linear-gradient(135deg,#7c3aed,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.p4-hero p{color:#64748b;font-size:15px;max-width:500px;margin:0 auto 24px}.p4-hero .p4-hero-img{margin-top:30px}.p4-hero .p4-hero-img img{max-height:240px;border-radius:16px;box-shadow:0 20px 60px rgba(124,58,237,0.1)}
.p4-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.p4-card{background:#fff;border-radius:14px;overflow:hidden;transition:.3s;box-shadow:0 1px 3px rgba(0,0,0,0.04)}.p4-card:hover{box-shadow:0 8px 24px rgba(0,0,0,0.06)}.p4-card .pc-thumb{height:140px;overflow:hidden;background:linear-gradient(135deg,#f5f3ff,#ede9fe)}.p4-card .pc-thumb img{width:100%;height:100%;object-fit:cover}.p4-card .pc-body{padding:14px 16px}.p4-card .pc-body h4{font-size:14px;font-weight:700}.p4-card .pc-body .pc-meta{font-size:11px;color:#94a3b8}
.p4-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:30px 0}.p4-stat{text-align:center;padding:24px;background:#fff;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,0.02)}.p4-stat .ps-val{font-size:30px;font-weight:800;background:linear-gradient(135deg,#7c3aed,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.p4-stat .ps-lbl{font-size:12px;color:#94a3b8;margin-top:4px}
.p4-grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.p4-hcard{display:flex;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.03)}.p4-hcard .ph-img{width:200px;flex-shrink:0}.p4-hcard .ph-img img{width:100%;height:100%;object-fit:cover}.p4-hcard .ph-body{padding:24px}.p4-hcard .ph-body .ph-tag{display:inline-block;padding:2px 8px;background:#f5f3ff;color:#7c3aed;border-radius:4px;font-size:10px;font-weight:700;margin-bottom:8px}.p4-hcard .ph-body h4{font-size:16px;font-weight:700}.p4-hcard .ph-body p{font-size:13px;color:#64748b}
.p4-faq .fq{background:#fff;border-radius:12px;margin-bottom:6px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.p4-faq .fq .q{padding:14px 20px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}.p4-faq .fq .q::after{content:'+'}.p4-faq .fq.open .q::after{content:'−'}.p4-faq .fq .a{padding:0 20px;max-height:0;overflow:hidden;transition:.3s;color:#64748b}.p4-faq .fq.open .a{padding:0 20px 14px;max-height:240px}
.p4-partners{overflow:hidden;padding:24px 0}.p4-partners .track{display:flex;gap:20px;animation:p4p 24s linear infinite;width:fit-content}.p4-partners .item{flex-shrink:0;padding:12px 22px;background:#fff;border-radius:10px;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.p4-partners .item img{height:36px;opacity:0.4}.p4-partners .item:hover img{opacity:1}@keyframes p4p{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.p4-footer{background:#1e293b;color:#94a3b8;padding:40px 0 24px;font-size:13px}.p4-footer a{color:#94a3b8}.p4-footer a:hover{color:#fff}.p4-footer .pf-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:20px}.p4-footer h4{color:#e2e8f0;margin-bottom:8px}.p4-footer .pf-bot{text-align:center;padding-top:14px;border-top:1px solid rgba(255,255,255,0.06)}
.p4-detail{padding-top:24px}.p4-row{display:flex;gap:20px;flex-wrap:wrap}.p4-col-main{flex:2}.p4-col-side{flex:1;min-width:240px}.p4-pcard{background:#fff;border-radius:14px;margin-bottom:14px;box-shadow:0 1px 3px rgba(0,0,0,0.02)}.p4-pcard-hd{padding:14px 18px;border-bottom:1px solid #f1f5f9;font-weight:700}.p4-pcard-bd{padding:18px}.p4-bread{font-size:12px;color:#94a3b8;padding:10px 0}.p4-art-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #f8fafc}.p4-art-item .art-t{width:150px;height:100px;border-radius:8px;overflow:hidden;flex-shrink:0}.p4-art-item .art-t img{width:100%;height:100%;object-fit:cover}.p4-art-item .art-i h4{font-size:14px;font-weight:700}.p4-art-item .art-i .art-d{font-size:12px;color:#94a3b8;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.p4-list-i{padding:8px 0;border-bottom:1px solid #fafafa}.p4-list-i a{color:#64748b;font-size:13px}.p4-tags{display:flex;gap:5px;flex-wrap:wrap}.p4-tags a{padding:4px 10px;background:#f5f3ff;color:#7c3aed;border-radius:6px;font-size:11px}.p4-pag{display:flex;justify-content:center;gap:5px;padding:20px 0}.p4-pag a,.p4-pag span{padding:7px 12px;border:1px solid #e2e8f0;border-radius:8px;font-size:12px;color:#64748b}.p4-pag a:hover{background:#7c3aed;color:#fff}.p4-pag .active span{background:#7c3aed;color:#fff}.p4-404{text-align:center;padding:100px 20px}.p4-404 .code{font-size:120px;color:#f1f5f9}
@media(max-width:768px){.p4-grid4{grid-template-columns:1fr 1fr}.p4-grid2{grid-template-columns:1fr}.p4-stats{grid-template-columns:1fr 1fr}}
.p4-hgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:30px 0}
.p4-hcard{display:flex;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,0.04);transition:.3s}.p4-hcard:hover{transform:translateY(-2px)}.p4-hcard .ph-img{width:200px;flex-shrink:0}.p4-hcard .ph-img img{width:100%;height:100%;object-fit:cover}.p4-hcard .ph-body{padding:24px}.p4-hcard .ph-body .ph-tag{display:inline-block;background:linear-gradient(135deg,#f5f3ff,#ede9fe);color:#7c3aed;border-radius:6px;padding:3px 10px;font-size:10px;font-weight:700;margin-bottom:8px}.p4-hcard .ph-body h4{font-size:16px;font-weight:700}.p4-hcard .ph-body p{font-size:13px;color:#64748b}
@media(max-width:768px){.p4-hgrid{grid-template-columns:1fr}}
.p4-tagstrip{display:flex;gap:8px;flex-wrap:wrap;padding:14px 0;justify-content:center}.p4-tagstrip a{padding:5px 16px;background:#f5f3ff;color:#7c3aed;border-radius:6px;font-size:12px;font-weight:500}.p4-tagstrip a:hover{background:#7c3aed;color:#fff}
.p4-icons{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:30px 0}.p4-icon{text-align:center;padding:28px 20px;background:#fff;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,0.02)}.p4-icon .pi-img{width:60px;height:60px;margin:0 auto 14px;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#f5f3ff,#ede9fe)}.p4-icon .pi-img img{width:100%;height:100%;object-fit:cover}.p4-icon h4{font-size:15px;font-weight:700}.p4-icon p{font-size:12px;color:#94a3b8}
.p4-altrow{display:flex;align-items:center;gap:30px;padding:30px 0}.p4-altrow .pa-img{width:45%;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,0.04)}.p4-altrow .pa-img img{width:100%}.p4-altrow .pa-text h3{font-size:22px;font-weight:800;margin-bottom:8px}.p4-altrow .pa-text p{color:#64748b;font-size:14px}
@media(max-width:768px){.p4-nav{flex-wrap:wrap;gap:10px;justify-content:center;padding:12px 14px} .p4-nav .p4-brand{width:100%;justify-content:center} .p4-nav .p4-links{flex-wrap:wrap;justify-content:center;gap:4px;width:100%} .p4-nav .p4-links a{padding:5px 10px;font-size:11px}.p4-icons{grid-template-columns:1fr 1fr}.p4-altrow{flex-direction:column;gap:20px}.p4-altrow .pa-img{width:100%}}