*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
--c1:#0ea5e9;--c2:#0284c7;--c3:#0369a1;--c4:#075985;
--l1:#e0f2fe;--l2:#bae6fd;--l3:#7dd3fc;--l4:#38bdf8;
--bg:#f8fafc;--w:#fff;
--t1:#0f172a;--t2:#334155;--t3:#64748b;--t4:#94a3b8;
--bd:#e2e8f0;--lbg:#f0f9ff;
--r:8px;--rl:16px;--rxl:24px;
--sh1:0 1px 3px rgba(2,132,199,.06);
--sh2:0 4px 20px rgba(2,132,199,.08);
--sh3:0 12px 40px rgba(2,132,199,.12);
--sh4:0 24px 64px rgba(2,132,199,.16);
--tf:.3s cubic-bezier(.4,0,.2,1);
--ff:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--ff);color:var(--t2);background:var(--w);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color var(--tf)}
ul{list-style:none}
svg{display:block}
.icn{width:24px;height:24px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.rv.on{opacity:1;transform:translateY(0)}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}

/* header */
.hdr{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--l1);transition:all var(--tf)}
.hdr.sc{box-shadow:var(--sh2);background:rgba(255,255,255,.95)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:8px;font-size:1.2rem;font-weight:800;color:var(--c3);letter-spacing:-.3px}
.logo-mk{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--c1),var(--c3));display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(14,165,233,.3)}
.logo-mk .icn{color:#fff;width:20px;height:20px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:8px 14px;border-radius:8px;font-size:.9rem;font-weight:500;color:var(--t3)}
.nav a:hover{color:var(--c2);background:var(--lbg)}
.hdr-act{display:flex;align-items:center;gap:10px}
.btn-ln{padding:8px 20px;border-radius:8px;font-size:.88rem;font-weight:600;color:var(--c2);border:1.5px solid var(--l2);background:transparent;transition:all var(--tf)}
.btn-ln:hover{border-color:var(--l4);background:var(--lbg)}
.btn-rg{padding:8px 20px;border-radius:8px;font-size:.88rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:0 4px 14px rgba(14,165,233,.3);transition:all var(--tf);border:none}
.btn-rg:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(14,165,233,.45)}
.mbtn{display:none;background:none;border:none;color:var(--c3);cursor:pointer;padding:4px}

/* hero */
.hero{position:relative;min-height:600px;display:flex;align-items:center;padding:120px 0 64px;overflow:hidden;background:linear-gradient(180deg,var(--lbg),var(--w))}
.hero::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(rgba(14,165,233,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(14,165,233,.03) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000,transparent)}
.hero-g{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center;width:100%}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:100px;font-size:.8rem;font-weight:600;color:var(--c2);background:var(--l1);margin-bottom:22px;border:1px solid var(--l2)}
.badge .dt{width:8px;height:8px;border-radius:50%;background:var(--c1);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:2.8rem;font-weight:800;line-height:1.28;letter-spacing:-.8px;color:var(--t1);margin-bottom:18px}
.hero h1 .ac{background:linear-gradient(135deg,var(--c1),var(--c3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:1.04rem;color:var(--t3);margin-bottom:30px;max-width:460px;line-height:1.85}
.hero-act{display:flex;gap:14px;flex-wrap:wrap}
.btn-p{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:10px;font-size:.95rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:0 6px 24px rgba(14,165,233,.28);transition:all var(--tf);border:none;cursor:pointer}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(14,165,233,.42)}
.btn-s{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:10px;font-size:.95rem;font-weight:600;color:var(--c2);background:var(--w);border:1.5px solid var(--l2);transition:all var(--tf)}
.btn-s:hover{border-color:var(--l4);background:var(--lbg)}

/* hero card */
.hc{background:var(--w);border-radius:var(--rxl);padding:28px;box-shadow:var(--sh4);border:1px solid var(--l1);position:relative;overflow:hidden}
.hc::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--l4),var(--c1),var(--c3))}
.hc-t{font-size:.76rem;font-weight:700;color:var(--t4);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:18px}
.hc-g{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.hc-s{padding:14px;border-radius:var(--r);background:var(--lbg);text-align:center}
.hc-s .n{font-size:1.5rem;font-weight:800;color:var(--c2);line-height:1}
.hc-s .l{font-size:.76rem;color:var(--t3);margin-top:5px}
.hc-list li{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:.86rem;color:var(--t2)}
.hc-list .ck{width:20px;height:20px;border-radius:50%;background:var(--l1);color:var(--c2);display:flex;align-items:center;justify-content:center;flex-shrink:0}

/* stats */
.sts{background:linear-gradient(135deg,var(--c2),var(--c4));position:relative;overflow:hidden}
.sts::before{content:"";position:absolute;top:-40%;right:-8%;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.04)}
.sts::after{content:"";position:absolute;bottom:-40%;left:-8%;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.03)}
.sts-g{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;padding:48px 0;position:relative;z-index:1}
.sts-i .n{font-size:2.2rem;font-weight:800;color:#fff;line-height:1}
.sts-i .l{font-size:.86rem;color:var(--l2);margin-top:6px}

/* sections */
.sec{padding:80px 0}
.sec-a{background:var(--lbg)}
.sec-h{text-align:center;max-width:640px;margin:0 auto 48px}
.tag{display:inline-block;padding:5px 14px;border-radius:100px;font-size:.8rem;font-weight:600;color:var(--c2);background:var(--l1);margin-bottom:12px}
.sec-h h2{font-size:2rem;font-weight:800;color:var(--t1);margin-bottom:12px;letter-spacing:-.4px}
.sec-h h2 .ac{color:var(--c1)}
.sec-h p{font-size:.98rem;color:var(--t3)}

/* features */
.fg{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.fc{padding:32px 28px;border-radius:var(--rl);background:var(--w);border:1px solid var(--bd);transition:all var(--tf);position:relative;overflow:hidden}
.fc::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--l4),var(--c1),var(--c3));transform:scaleX(0);transform-origin:left;transition:transform var(--tf)}
.fc:hover{transform:translateY(-5px);box-shadow:var(--sh3);border-color:var(--l2)}
.fc:hover::before{transform:scaleX(1)}
.fc-ic{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--lbg),var(--l1));display:flex;align-items:center;justify-content:center;color:var(--c2);margin-bottom:18px}
.fc-ic .icn{width:26px;height:26px}
.fc h3{font-size:1.08rem;font-weight:700;color:var(--t1);margin-bottom:10px}
.fc p{font-size:.88rem;color:var(--t3);line-height:1.8}

/* payment */
.pg{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.pt{display:flex;align-items:center;gap:10px;padding:14px 24px;border-radius:var(--r);background:var(--w);border:1px solid var(--bd);font-size:.9rem;font-weight:600;color:var(--t2);box-shadow:var(--sh1);transition:all var(--tf)}
.pt:hover{border-color:var(--l3);box-shadow:var(--sh2);transform:translateY(-2px)}
.pt-d{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.78rem;font-weight:700}

/* steps */
.sg{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.sg::before{content:"";position:absolute;top:32px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,var(--l2),var(--l3),var(--l2))}
.sc{text-align:center;position:relative;z-index:1}
.sc-n{width:64px;height:64px;border-radius:50%;margin:0 auto 16px;background:var(--w);border:2px solid var(--l2);display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;color:var(--c2);transition:all var(--tf)}
.sc:hover .sc-n{border-color:var(--c1);background:var(--lbg);box-shadow:0 0 0 6px var(--l1)}
.sc h3{font-size:1rem;font-weight:700;color:var(--t1);margin-bottom:6px}
.sc p{font-size:.84rem;color:var(--t3);line-height:1.6;padding:0 8px}

/* pricing */
.prg{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{padding:36px 28px;border-radius:var(--rl);background:var(--w);border:1px solid var(--bd);transition:all var(--tf);position:relative}
.pcard.sp{border-color:var(--l4);box-shadow:var(--sh3);transform:scale(1.03)}
.pcard-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);padding:3px 14px;border-radius:100px;font-size:.74rem;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--c1),var(--c2))}
.pcard h3{font-size:1.1rem;font-weight:700;color:var(--t1);margin-bottom:4px}
.pcard .ds{font-size:.8rem;color:var(--t4);margin-bottom:22px}
.prate{display:flex;align-items:baseline;gap:4px;margin-bottom:22px}
.prate .a{font-size:2.4rem;font-weight:800;color:var(--c2)}
.prate .u{font-size:.82rem;color:var(--t4)}
.pfl li{display:flex;align-items:center;gap:8px;padding:8px 0;font-size:.86rem;color:var(--t2);border-bottom:1px solid var(--bd)}
.pfl li:last-child{border-bottom:none}
.pfl .ck{width:18px;height:18px;border-radius:50%;background:var(--l1);color:var(--c2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pfl .cx{width:18px;height:18px;border-radius:50%;background:var(--bg);color:var(--t4);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pbtn{display:block;text-align:center;padding:10px;border-radius:8px;font-size:.9rem;font-weight:600;margin-top:20px;transition:all var(--tf)}
.pbtn.p{color:#fff;background:linear-gradient(135deg,var(--c1),var(--c2))}
.pbtn.p:hover{box-shadow:0 4px 16px rgba(14,165,233,.4)}
.pbtn.o{color:var(--c2);border:1.5px solid var(--l2)}
.pbtn.o:hover{border-color:var(--l4);background:var(--lbg)}

/* security */
.seg{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.sev{padding:36px;border-radius:var(--rl);background:linear-gradient(135deg,var(--lbg),var(--l1));text-align:center}
.sev-sh{width:90px;height:90px;margin:0 auto 18px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c3));display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 12px 36px rgba(14,165,233,.28)}
.sev-sh .icn{width:40px;height:40px}
.sev h3{font-size:1.1rem;font-weight:700;color:var(--t1);margin-bottom:4px}
.sev p{font-size:.86rem;color:var(--t3)}
.sel li{display:flex;align-items:flex-start;gap:14px;padding:14px 0;border-bottom:1px solid var(--l1)}
.sel li:last-child{border-bottom:none}
.sel .si{width:42px;height:42px;border-radius:10px;flex-shrink:0;background:var(--l1);color:var(--c2);display:flex;align-items:center;justify-content:center}
.sel .si .icn{width:22px;height:22px}
.sel h4{font-size:.96rem;font-weight:700;color:var(--t1);margin-bottom:3px}
.sel p{font-size:.84rem;color:var(--t3)}

/* faq */
.ql{max-width:740px;margin:0 auto}
.qi{border:1px solid var(--bd);border-radius:var(--r);margin-bottom:10px;overflow:hidden;background:var(--w);transition:all var(--tf)}
.qi.on{border-color:var(--l3);box-shadow:var(--sh2)}
.qq{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer;font-size:.96rem;font-weight:600;color:var(--t1)}
.qq .ar{width:22px;height:22px;color:var(--c1);transition:transform var(--tf);flex-shrink:0}
.qi.on .qq .ar{transform:rotate(180deg)}
.qa{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 20px;font-size:.88rem;color:var(--t3);line-height:1.85}
.qi.on .qa{max-height:300px;padding:0 20px 16px}

/* cta */
.cta{padding:64px 0}
.cta-b{background:linear-gradient(135deg,var(--c2),var(--c4));border-radius:var(--rxl);padding:48px;text-align:center;position:relative;overflow:hidden}
.cta-b::before{content:"";position:absolute;top:-60px;right:-60px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-b::after{content:"";position:absolute;bottom:-60px;left:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.04)}
.cta-b h2{font-size:1.9rem;font-weight:800;color:#fff;margin-bottom:10px;position:relative}
.cta-b p{font-size:.98rem;color:var(--l2);margin-bottom:26px;position:relative}
.cta-b .btn-p{background:#fff;color:var(--c3);box-shadow:0 6px 24px rgba(0,0,0,.12)}
.cta-b .btn-p:hover{background:var(--lbg)}

/* footer */
.ft{background:var(--t1);color:var(--t4);padding:48px 0 0}
.ft-g{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.ft-br .logo{color:#fff;margin-bottom:12px}
.ft-br p{font-size:.84rem;line-height:1.8;max-width:280px}
.ft-c h4{font-size:.9rem;font-weight:600;color:#fff;margin-bottom:12px}
.ft-c a{display:block;font-size:.84rem;padding:4px 0;color:var(--t4)}
.ft-c a:hover{color:var(--l3)}
.ft-ct li{display:flex;align-items:center;gap:8px;font-size:.84rem;padding:4px 0}
.ft-ct .icn{width:16px;height:16px;color:var(--l3)}
.ft-b{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:.8rem;color:var(--t4)}
.ft-b p{margin:3px 0}
.ft-lk{display:flex;justify-content:center;gap:16px;margin-bottom:6px}
.ft-lk a{color:var(--t4)}.ft-lk a:hover{color:var(--l3)}

/* float */
.fs{position:fixed;right:16px;bottom:16px;z-index:998;display:flex;flex-direction:column;gap:8px}
.fs-btn{width:48px;height:48px;border-radius:12px;background:var(--w);border:1px solid var(--l1);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--sh2);transition:all var(--tf);color:var(--c2)}
.fs-btn:hover{background:var(--c1);border-color:var(--c1);color:#fff;transform:translateY(-2px)}
.fs-btn .icn{width:22px;height:22px}

/* mobile */
@media(max-width:960px){
.nav,.hdr-act{display:none}
.mbtn{display:flex}
.nav.mo{display:flex;flex-direction:column;position:absolute;top:66px;left:0;right:0;background:#fff;padding:10px;border-bottom:1px solid var(--l2);box-shadow:var(--sh2);gap:2px}
.hero-g{grid-template-columns:1fr;gap:36px}
.hero h1{font-size:2.1rem}
.hero p{margin-left:auto;margin-right:auto}
.hero-act{justify-content:center}
.fg{grid-template-columns:1fr}
.sts-g{grid-template-columns:repeat(2,1fr)}
.sg{grid-template-columns:repeat(2,1fr)}
.sg::before{display:none}
.prg{grid-template-columns:1fr}
.pcard.sp{transform:none}
.seg{grid-template-columns:1fr}
.sec-h h2{font-size:1.6rem}
.ft-g{grid-template-columns:1fr 1fr}
.cta-b{padding:36px 20px}
.cta-b h2{font-size:1.5rem}
}
@media(max-width:560px){
.hero h1{font-size:1.7rem}
.sts-g{grid-template-columns:1fr}
.sg{grid-template-columns:1fr}
.ft-g{grid-template-columns:1fr}
.hc-g{grid-template-columns:1fr}
}