/* n3 - 流体渐变风格：浅色背景+动态渐变+彩色卡片+活泼现代 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f8fafc;color:#1e293b;font-size:15px;line-height:1.7}
a{color:#6366f1;text-decoration:none}a:hover{color:#4f46e5}
img{max-width:100%}ul,ol{list-style:none;padding:0;margin:0}
.n3-container{max-width:1150px;margin:0 auto;padding:0 20px}

/* Animated gradient background */
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse 80% 60% at 20% 0,rgba(99,102,241,0.06),transparent),radial-gradient(ellipse 60% 70% at 80% 100%,rgba(236,72,153,0.04),transparent),radial-gradient(ellipse 50% 50% at 50% 50%,rgba(14,165,233,0.03),transparent);pointer-events:none;z-index:0}

/* Nav */
.n3-nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;position:sticky;top:10px;z-index:200;margin:0 20px;background:rgba(255,255,255,0.85);backdrop-filter:blur(16px);border:1px solid rgba(99,102,241,0.08);border-radius:16px;max-width:1150px;margin-left:auto;margin-right:auto;position:relative}
.n3-nav .n3-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;background:linear-gradient(135deg,#6366f1,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.n3-nav .n3-brand img{height:28px;border-radius:8px}
.n3-nav .n3-links{display:flex;gap:6px}.n3-nav .n3-links a{padding:7px 16px;border-radius:10px;font-size:13px;font-weight:500;color:#64748b}.n3-nav .n3-links a:hover{background:#eef2ff;color:#6366f1}
.n3-nav .drop{position:relative}.n3-nav .drop-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:12px;min-width:160px;padding:4px 0;box-shadow:0 8px 30px rgba(0,0,0,0.08);margin-top:8px}.n3-nav .drop:hover .drop-menu{display:block}.n3-nav .drop-menu a{display:block;padding:8px 18px;font-size:13px;color:#64748b}.n3-nav .drop-menu a:hover{background:#f8fafc}
.n3-btn{display:inline-block;padding:9px 24px;border-radius:12px;font-size:13px;font-weight:700;cursor:pointer;border:none;transition:.3s}
.n3-btn-gradient{background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);color:#fff;box-shadow:0 4px 20px rgba(99,102,241,0.25)}.n3-btn-gradient:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(99,102,241,0.35)}
.n3-btn-soft{background:#eef2ff;color:#6366f1}.n3-btn-soft:hover{background:#e0e7ff}

/* Hero */
.n3-hero{padding:70px 0 50px;text-align:center;position:relative;z-index:1}.n3-hero .n3-hero-badge{display:inline-block;padding:5px 18px;background:linear-gradient(135deg,#eef2ff,#fce7f3);border-radius:50px;font-size:12px;font-weight:700;color:#6366f1;margin-bottom:20px}.n3-hero h1{font-size:46px;font-weight:800;line-height:1.15;margin-bottom:12px;letter-spacing:-1px}.n3-hero h1 span{background:linear-gradient(135deg,#6366f1,#ec4899,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.n3-hero p{color:#64748b;font-size:16px;max-width:520px;margin:0 auto 28px}.n3-hero .n3-hero-visual{margin-top:36px}.n3-hero .n3-hero-visual img{max-height:240px;border-radius:20px;box-shadow:0 20px 60px rgba(99,102,241,0.12)}

/* Stats - colorful cards */
.n3-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:20px 0 40px;position:relative;z-index:1}
.n3-stat{text-align:center;padding:24px 16px;border-radius:16px;transition:.3s}.n3-stat:hover{transform:translateY(-2px)}
.n3-stat:nth-child(1){background:linear-gradient(135deg,#eef2ff,#e0e7ff)}.n3-stat:nth-child(2){background:linear-gradient(135deg,#fce7f3,#fbcfe8)}.n3-stat:nth-child(3){background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.n3-stat:nth-child(4){background:linear-gradient(135deg,#fffbeb,#fef3c7)}
.n3-stat .ns-val{font-size:30px;font-weight:800}.n3-stat:nth-child(1) .ns-val{color:#4f46e5}.n3-stat:nth-child(2) .ns-val{color:#db2777}.n3-stat:nth-child(3) .ns-val{color:#059669}.n3-stat:nth-child(4) .ns-val{color:#d97706}
.n3-stat .ns-lbl{font-size:12px;color:#64748b;margin-top:4px}

/* Sections */
.n3-section{padding:50px 0;position:relative;z-index:1}.n3-sec-title{text-align:center;margin-bottom:36px}.n3-sec-title .n3-stag{display:inline-block;padding:4px 16px;background:linear-gradient(135deg,#eef2ff,#fce7f3);border-radius:50px;font-size:11px;font-weight:700;color:#6366f1;margin-bottom:12px}.n3-sec-title h2{font-size:30px;font-weight:800;color:#1e293b}.n3-sec-title p{color:#94a3b8;font-size:14px}

/* 4 col colorful cards */
.n3-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.n3-card{background:#fff;border-radius:16px;overflow:hidden;transition:.3s;box-shadow:0 1px 3px rgba(0,0,0,0.04)}.n3-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,0.08)}.n3-card .nc-thumb{height:150px;overflow:hidden;position:relative}.n3-card .nc-thumb::after{content:'';position:absolute;bottom:0;left:0;right:0;height:40%;background:linear-gradient(transparent,rgba(0,0,0,0.03))}.n3-card .nc-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}.n3-card:hover .nc-thumb img{transform:scale(1.06)}.n3-card .nc-body{padding:16px 18px}.n3-card .nc-body .nc-tag{display:inline-block;padding:3px 10px;border-radius:6px;font-size:10px;font-weight:700;margin-bottom:6px}.n3-card .nc-body .nc-tag.purple{background:#eef2ff;color:#6366f1}.n3-card .nc-body .nc-tag.pink{background:#fce7f3;color:#ec4899}.n3-card .nc-body .nc-tag.green{background:#ecfdf5;color:#059669}.n3-card .nc-body .nc-tag.amber{background:#fffbeb;color:#d97706}.n3-card .nc-body h4{font-size:15px;font-weight:700}.n3-card .nc-body .nc-meta{font-size:11px;color:#94a3b8;margin-top:4px}

/* 2 col */
.n3-grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.n3-hcard{display:flex;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.04);transition:.3s}.n3-hcard:hover{box-shadow:0 8px 24px rgba(0,0,0,0.06)}.n3-hcard .nh-img{width:200px;flex-shrink:0}.n3-hcard .nh-img img{width:100%;height:100%;object-fit:cover}.n3-hcard .nh-body{padding:24px}.n3-hcard .nh-body .nh-tag{display:inline-block;padding:3px 12px;border-radius:50px;font-size:10px;font-weight:700;margin-bottom:10px}.n3-hcard .nh-body .nh-tag.hot{background:linear-gradient(135deg,#fef2f2,#fecaca);color:#dc2626}.n3-hcard .nh-body .nh-tag.new{background:linear-gradient(135deg,#ecfdf5,#d1fae5);color:#059669}.n3-hcard .nh-body h4{font-size:17px;font-weight:700}.n3-hcard .nh-body p{font-size:13px;color:#64748b}

/* Reviews */
.n3-reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.n3-review{background:#fff;border-radius:16px;padding:28px 24px;text-align:center;box-shadow:0 1px 3px rgba(0,0,0,0.03);transition:.3s}.n3-review:hover{box-shadow:0 6px 20px rgba(0,0,0,0.06)}.n3-review .nr-avatar{width:56px;height:56px;border-radius:50%;overflow:hidden;margin:0 auto 14px;border:3px solid #eef2ff}.n3-review .nr-avatar img{width:100%;height:100%;object-fit:cover}.n3-review .nr-stars{font-size:14px;color:#f59e0b;margin-bottom:8px}.n3-review .nr-text{font-size:13px;color:#64748b;line-height:1.7;font-style:italic}.n3-review .nr-name{font-weight:700;font-size:13px;margin-top:10px}

/* FAQ */
.n3-faq .fq{background:#fff;border-radius:14px;margin-bottom:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.03)}.n3-faq .fq .q{padding:16px 24px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}.n3-faq .fq .q::after{content:'+'}.n3-faq .fq.open .q::after{content:'−'}.n3-faq .fq .a{padding:0 24px;max-height:0;overflow:hidden;transition:.4s;color:#64748b}.n3-faq .fq.open .a{padding:0 24px 18px;max-height:240px}

/* CTA */
.n3-cta{text-align:center;padding:60px 0;background:linear-gradient(135deg,#eef2ff,#fce7f3,#ecfdf5);border-radius:24px;margin:30px 0;position:relative;z-index:1}.n3-cta h2{font-size:30px;font-weight:800;color:#1e293b}.n3-cta p{color:#64748b;margin-bottom:24px}

/* Partners */
.n3-partners{overflow:hidden;padding:24px 0;position:relative;z-index:1}.n3-partners .track{display:flex;gap:16px;animation:n3p 24s linear infinite;width:fit-content}.n3-partners .item{flex-shrink:0;background:#fff;border-radius:14px;padding:14px 24px;box-shadow:0 1px 4px rgba(0,0,0,0.03)}.n3-partners .item img{height:38px;opacity:0.4;filter:grayscale(1)}.n3-partners .item:hover img{opacity:1;filter:none}@keyframes n3p{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* Footer */
.n3-footer{background:#1e293b;color:#94a3b8;padding:50px 0 24px;font-size:13px;position:relative;z-index:1}.n3-footer a{color:#94a3b8}.n3-footer a:hover{color:#fff}.n3-footer .nf-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:24px}.n3-footer h4{color:#cbd5e1;margin-bottom:10px}.n3-footer .nf-bot{text-align:center;padding-top:18px;border-top:1px solid rgba(255,255,255,0.06)}

/* Inner */
.n3-detail{padding-top:24px;position:relative;z-index:1}.n3-row{display:flex;gap:20px;flex-wrap:wrap}.n3-col-main{flex:2}.n3-col-side{flex:1;min-width:240px}.n3-pcard{background:#fff;border-radius:16px;margin-bottom:16px;box-shadow:0 1px 3px rgba(0,0,0,0.03);overflow:hidden}.n3-pcard-hd{padding:16px 20px;border-bottom:1px solid #f1f5f9;font-weight:700}.n3-pcard-bd{padding:20px}.n3-bread{font-size:12px;color:#94a3b8;padding:10px 0}.n3-art-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #f8fafc}.n3-art-item .art-t{width:160px;height:110px;border-radius:12px;overflow:hidden;flex-shrink:0}.n3-art-item .art-t img{width:100%;height:100%;object-fit:cover}.n3-art-item .art-i h4{font-size:14px;font-weight:700}.n3-art-item .art-i h4 a{color:#1e293b}.n3-art-item .art-i .art-d{font-size:12px;color:#94a3b8;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.n3-list-i{padding:8px 0;border-bottom:1px solid #fafafa}.n3-list-i a{color:#64748b;font-size:13px}.n3-tags{display:flex;gap:6px;flex-wrap:wrap}.n3-tags a{padding:5px 14px;background:#eef2ff;color:#6366f1;border-radius:50px;font-size:11px;font-weight:600}.n3-tags a:hover{background:#6366f1;color:#fff}.n3-pag{display:flex;justify-content:center;gap:6px;padding:24px 0}.n3-pag a,.n3-pag span{padding:8px 16px;background:#fff;border-radius:10px;font-size:13px;color:#64748b;box-shadow:0 1px 3px rgba(0,0,0,0.03)}.n3-pag a:hover{background:#6366f1;color:#fff}.n3-pag .active span{background:#6366f1;color:#fff}.n3-dbody{font-size:16px;line-height:1.9;color:#475569}.n3-meta{display:flex;gap:12px;font-size:12px;color:#94a3b8;padding-bottom:10px;border-bottom:1px solid #f1f5f9;margin-bottom:14px}.n3-pn{display:flex;gap:12px;padding:14px 0;border-top:1px solid #f1f5f9;margin-top:20px;font-size:13px}.n3-404{text-align:center;padding:100px 20px}.n3-404 .code{font-size:120px;color:#f1f5f9}
@media(max-width:768px){.n3-grid4{grid-template-columns:1fr 1fr}.n3-grid2{grid-template-columns:1fr}.n3-reviews{grid-template-columns:1fr}.n3-stats{grid-template-columns:1fr 1fr}}
.n3-tagstrip{display:flex;gap:8px;flex-wrap:wrap;padding:14px 0;justify-content:center}.n3-tagstrip a{padding:5px 16px;background:#eef2ff;color:#6366f1;border-radius:50px;font-size:11px;font-weight:600}.n3-tagstrip a:hover{background:#6366f1;color:#fff}
.n3-icons{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:30px 0}.n3-icon{text-align:center;padding:30px 20px;background:#fff;border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,0.03)}.n3-icon .pi-img{width:62px;height:62px;margin:0 auto 14px;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,#eef2ff,#fce7f3)}.n3-icon .pi-img img{width:100%;height:100%;object-fit:cover}.n3-icon h4{font-size:15px;font-weight:700}.n3-icon p{font-size:12px;color:#94a3b8}
.n3-altrow{display:flex;align-items:center;gap:30px;padding:30px 0}.n3-altrow .pa-img{width:45%;border-radius:16px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,0.04)}.n3-altrow .pa-img img{width:100%}.n3-altrow .pa-text h3{font-size:22px;font-weight:800}.n3-altrow .pa-text p{font-size:14px;color:#64748b}
@media(max-width:768px){.n3-nav{flex-wrap:wrap;gap:10px;justify-content:center;padding:12px 14px} .n3-nav .n3-brand{width:100%;justify-content:center} .n3-nav .n3-links{flex-wrap:wrap;justify-content:center;gap:4px;width:100%} .n3-nav .n3-links a{padding:5px 10px;font-size:11px}.n3-icons{grid-template-columns:1fr 1fr}.n3-altrow{flex-direction:column;gap:20px}.n3-altrow .pa-img{width:100%}}