﻿:root{--pri:#be123c;--prid:#9f1239;--pril:#fda4af;--bg:#fff1f2;--tx:#2d0510;--tx2:#881337;--w:#fff;--dark:#1c0308;--r:16px}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;color:var(--tx);background:var(--w);line-height:1.6}.container{max-width:1150px;margin:0 auto;padding:0 1.5rem}a{text-decoration:none;color:inherit}h1,h2,h3,h4{line-height:1.2}
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid#fecdd3}.nav .container{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1.5rem}.nav-brand{display:flex;align-items:center;gap:.4rem;font-weight:800;font-size:1rem;color:var(--tx)}.nav-brand .icon{width:34px;height:34px;background:linear-gradient(135deg,#be123c,#e11d48);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.8rem}.nav-links{display:flex;align-items:center;gap:1.6rem}.nav-links a{font-weight:600;font-size:.78rem;color:var(--tx2);transition:color .2s}.nav-links a:hover,.nav-links a.active{color:var(--pri)}.nav-cta{padding:.4rem 1.2rem;background:var(--pri);color:#fff!important;border-radius:8px;font-weight:700;font-size:.75rem}.nav-cta:hover{background:var(--prid)}#mt{display:none;background:none;border:none;font-size:1.2rem;color:var(--tx);cursor:pointer}
.hero{padding:4.5rem 0 2.5rem;background:linear-gradient(180deg,var(--bg),#fff)}
.hero .hc{display:grid;grid-template-columns:1fr 1.2fr;gap:3rem;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:.35rem;padding:.2rem .8rem;border:1px solid#fecdd3;border-radius:8px;font-size:.68rem;font-weight:700;color:var(--pri);margin-bottom:.8rem}
.hero h1{font-size:2.6rem;font-weight:900;color:var(--tx);margin-bottom:.8rem}.hero h1 .hl{color:var(--pri)}
.hero p{color:var(--tx2);font-size:.9rem;line-height:1.7;margin-bottom:1.5rem}
.hero-btns{display:flex;gap:1rem}
.btn{padding:.65rem 1.6rem;border-radius:8px;font-weight:700;font-size:.83rem;display:inline-flex;align-items:center;gap:.5rem;transition:all .25s}
.btn-pri{background:var(--pri);color:#fff}.btn-pri:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(190,18,60,.35)}
.btn-out{border:2px solid#fecdd3;color:var(--pri)}.btn-out:hover{border-color:var(--pri);background:var(--bg)}
.hero-sdk{background:#1c0308;border-radius:20px;padding:1.2rem;font-family:'SF Mono','Consolas',monospace;font-size:.74rem;color:#fda4af;line-height:1.6}.hero-sdk .kw{color:#e11d48}.hero-sdk .str{color:#fbbf24}.hero-sdk .fn{color:#f472b6}.hero-sdk .cm{color:#6b7280}
section{padding:4rem 0}.st{text-align:center;margin-bottom:2.5rem}.st h2{font-size:2rem;font-weight:900;color:var(--tx);margin-bottom:.3rem}.st .hl{color:var(--pri)}.st p{color:var(--tx2);font-size:.83rem}
.f-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem;max-width:850px;margin:0 auto}
.fc{background:#fff;border-radius:var(--r);padding:1.4rem;border:1px solid#fecdd3;display:flex;gap:1rem;align-items:flex-start;transition:transform .3s,box-shadow .3s}
.fc:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(190,18,60,.08)}
.fc .ficon{width:44px;height:44px;border-radius:12px;background:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--pri);font-size:1rem;flex-shrink:0}
.fc h3{font-weight:700;font-size:.9rem;margin-bottom:.2rem}
.fc p{color:var(--tx2);font-size:.77rem;line-height:1.5}
#stats{background:var(--dark)}#stats .st h2{color:#fff}#stats .st p{color:rgba(255,255,255,.4)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center}
.stat-grid .sv{font-size:2.5rem;font-weight:900;color:var(--pril)}.stat-grid .sl{color:rgba(255,255,255,.5);font-size:.74rem;font-weight:600}
.testi-2col{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.testi-card{background:#fff;border-radius:var(--r);padding:1.5rem;border:1px solid#fecdd3}
.testi-card .stars{color:#e11d48;font-size:.7rem;margin-bottom:.5rem}
.testi-card blockquote{font-size:.81rem;color:#475569;line-height:1.55;font-style:italic;margin-bottom:.8rem}
.testi-card .tinfo{font-weight:700;font-size:.74rem;color:var(--tx)}
.faq-list{max-width:700px;margin:0 auto;display:flex;flex-direction:column;gap:.5rem}
.faq-item{border:1px solid#fecdd3;border-radius:var(--r);overflow:hidden}.faq-item.open{border-color:var(--pri)}
.faq-q{width:100%;background:none;border:none;padding:.8rem 1.2rem;display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:.81rem;color:var(--tx);cursor:pointer;text-align:left}
.faq-q i{color:var(--pri);transition:transform .3s;font-size:.68rem}.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s}.faq-item.open .faq-a{max-height:150px}
.faq-a p{padding:0 1.2rem .8rem;color:var(--tx2);font-size:.77rem;line-height:1.6}
#cta{background:linear-gradient(135deg,var(--dark),#4a0516,#881337);text-align:center;padding:4rem 0}
#cta h2{font-size:2.2rem;font-weight:900;color:#fff;margin-bottom:.5rem}#cta p{color:rgba(255,255,255,.45);font-size:.86rem;margin-bottom:1.8rem}
.cta-btns{display:flex;gap:1rem;justify-content:center}
.btn-wh{border:1.5px solid rgba(255,255,255,.2);color:#fff;padding:.65rem 1.6rem;border-radius:8px;font-weight:700;font-size:.83rem;transition:background .25s}.btn-wh:hover{background:rgba(255,255,255,.06)}
footer{background:var(--dark);color:#fda4af;padding:3rem 0 1.5rem;font-size:.74rem}footer .fg{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}footer h4{color:#fff;font-size:.76rem;margin-bottom:.4rem}footer a{color:#fda4af;opacity:.6;display:block;margin-bottom:.2rem;transition:opacity .2s}footer a:hover{opacity:1}footer .fb{border-top:1px solid rgba(255,255,255,.06);padding-top:1.5rem;text-align:center;opacity:.4}
@media(max-width:768px){.hero .hc{grid-template-columns:1fr;text-align:center}.hero-btns{justify-content:center}.f-grid{grid-template-columns:1fr}.testi-2col{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:1.5rem;gap:1rem;box-shadow:0 10px 30px rgba(0,0,0,.08)}.nav-links.open{display:flex}#mt{display:block}footer .fg{grid-template-columns:1fr 1fr}}
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