:root{--bg:#ffffff;--bg2:#fafbfc;--fg:#1a2332;--fg2:#5c6b7a;--a1:#0a4ea8;--a2:#1a6fd4;--bd:#e5e7eb;}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#ffffff;color:#1a2332;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:#0a4ea8;}
main{max-width:100%;}
h2{text-align:center;}
.brand img{max-height:32px;}
.container{max-width:1180px;margin:0 auto;padding:0 22px;}
.hero{padding-left:0;padding-right:0;}
.download-inner{max-width:1180px;margin:0 auto;padding:0 22px;}
@media(max-width:520px){.container{padding:0 16px;}}

.hero{padding:clamp(70px,9vw,140px) 0 clamp(50px,6vw,100px);background:#fafbfc;border-bottom:1px solid #e5e7eb;}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(30px,5vw,60px);align-items:center;}
.hero h1{font-size:clamp(28px,4vw,48px);font-weight:700;line-height:1.2;color:#1a2332;margin-bottom:20px;}
.hero p{font-size:clamp(14px,1.5vw,16px);color:#5c6b7a;margin-bottom:28px;line-height:1.7;max-width:520px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;}.btn:not([hidden]){display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:6px;font-weight:500;font-size:14px;text-decoration:none;transition:all .15s;position:relative;z-index:3;}
.btn-primary:not([hidden]){background:#0a4ea8;color:#fff;}
.btn-secondary:not([hidden]){background:#fff;color:#1a2332;border:1px solid #e5e7eb;}
.btn:hover{opacity:.85;}
.hero-meta{font-size:12px;color:#5c6b7a;line-height:1.8;padding-top:16px;border-top:1px solid #e5e7eb;max-width:520px;}
.hero-meta div{display:flex;gap:6px;margin-bottom:4px;}
.check-ok::before{content:'✓';color:#0a4ea8;font-weight:700;}
.hero-card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:28px;box-shadow:0 10px 30px rgba(0,0,0,.05);}
.hero-card h3{font-size:15px;font-weight:700;color:#1a2332;margin-bottom:16px;}
.hero-card ol{padding-left:20px;}
.hero-card ol li{font-size:13px;color:#5c6b7a;margin-bottom:10px;line-height:1.6;}
.hero-card ol li b{color:#1a2332;font-weight:600;}
@media(max-width:860px){.hero-inner{grid-template-columns:1fr;}.hero-card{order:-1;}}.features{padding:clamp(50px,6vw,100px) 0;background:#fafbfc;border-top:1px solid #e5e7eb;}
.features h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;text-align:center;margin-bottom:12px;color:#1a2332;}
.features .sub{text-align:center;color:#5c6b7a;margin-bottom:40px;font-size:14px;}
.feat-list{max-width:880px;margin:0 auto;display:grid;gap:1px;background:#e5e7eb;border-radius:10px;overflow:hidden;}
.feat-item{background:#fff;padding:20px 24px;display:grid;grid-template-columns:1fr 3fr;gap:20px;align-items:baseline;transition:background .15s;}
.feat-item:hover{background:#fafbfc;}
.feat-item h3{font-size:15px;font-weight:600;color:#0a4ea8;}
.feat-item p{font-size:13.5px;color:#5c6b7a;line-height:1.7;}
@media(max-width:600px){.feat-item{grid-template-columns:1fr;gap:6px;padding:16px;}}.security{padding:clamp(50px,6vw,100px) 0;background:#ffffff;}
.sec-inner{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,60px);align-items:center;}
.sec h2{font-size:clamp(24px,3vw,36px);font-weight:700;margin-bottom:24px;color:#1a2332;}
.sec-list{display:grid;gap:14px;}
.sec-item{display:flex;gap:14px;padding:20px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;}
.sec-check{width:24px;height:24px;border-radius:50%;background:#0a4ea818;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#0a4ea8;font-size:14px;font-weight:700;}
.sec-item h3{font-size:15px;font-weight:700;color:#1a2332;margin-bottom:4px;}
.sec-item p{font-size:13px;color:#5c6b7a;line-height:1.6;}
.sec-visual{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:24px;}
.sec-visual h3{font-size:14px;color:#5c6b7a;letter-spacing:2px;margin-bottom:16px;}
.sec-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px dashed #e5e7eb;font-size:13px;color:#5c6b7a;}
.sec-bar:last-child{border-bottom:none;}
.sec-bar .bar-v{font-family:"SF Mono",Consolas,monospace;color:#0a4ea8;font-weight:700;}
@media(max-width:860px){.sec-inner{grid-template-columns:1fr;}}.download{padding:clamp(60px,7vw,120px) 0;background:#fafbfc;}
.download-inner{max-width:960px;margin:0 auto;}
.download h2{font-size:clamp(24px,3vw,36px);font-weight:700;text-align:center;margin-bottom:12px;color:#1a2332;}
.download .sub{text-align:center;color:#5c6b7a;margin-bottom:36px;font-size:14px;}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;overflow:visible;}
.dl-card:not([hidden]){background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:28px;text-align:center;transition:transform .15s,box-shadow .15s;}
.dl-card:hover:not([hidden]){transform:translateY(-4px);box-shadow:0 20px 50px rgba(0,0,0,.08);border-color:#0a4ea8;}
.dl-icon{width:48px;height:48px;border-radius:12px;background:#0a4ea818;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px;}
.dl-card h3{font-size:16px;font-weight:700;color:#1a2332;margin-bottom:6px;}
.dl-card p{font-size:12.5px;color:#5c6b7a;margin-bottom:14px;}.dl-card .dl-btn:not([hidden]){display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:8px;background:#0a4ea8;color:#fff;font-weight:600;font-size:14px;text-decoration:none;transition:opacity .15s;}
.dl-card .dl-btn:hover{opacity:.85;}
@media(max-width:600px){.dl-grid{grid-template-columns:1fr;}}
a.dl-card{color:inherit;text-decoration:none}
/* 原内联样式，按原优先级抽离 */
.s-48022f85.s-48022f85.s-48022f85{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(14,27,51,.08)}
.s-c9529690.s-c9529690.s-c9529690{max-width:1180px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;height:66px}
.s-fd489897.s-fd489897.s-fd489897{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#0e1b33;text-decoration:none}
.s-e6ae8816.s-e6ae8816.s-e6ae8816{height:28px;max-height:32px}
.s-0e2b4b3b.s-0e2b4b3b.s-0e2b4b3b{display:flex;gap:24px;font-size:14px;color:#0e1b33;opacity:.85}
.s-48b58bde.s-48b58bde.s-48b58bde{color:inherit;text-decoration:none}
.s-871a87af.s-871a87af.s-871a87af{display:flex;gap:10px}
.s-9582b9c7.s-9582b9c7.s-9582b9c7:not([hidden]){display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:8px;background:linear-gradient(135deg,#1677ff,#00d4ff);color:#fff;font-weight:600;font-size:14px;text-decoration:none;position:relative;z-index:3}
.s-031fb12e.s-031fb12e.s-031fb12e{background:#0e1b33;color:#b8c4d6;padding:48px 0 24px;font-size:13px}
.s-b82a719c.s-b82a719c.s-b82a719c{max-width:1180px;margin:0 auto;padding:0 22px;display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:40px}
.s-c6f8fc71.s-c6f8fc71.s-c6f8fc71{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.s-eeb774e0.s-eeb774e0.s-eeb774e0{height:24px}
.s-16a18155.s-16a18155.s-16a18155{color:#e8f0ff;font-weight:700;font-size:15px}
.s-5047ee43.s-5047ee43.s-5047ee43{line-height:1.7;color:#b8c4d6}
.s-c944bde4.s-c944bde4.s-c944bde4{color:#e8f0ff;font-size:14px;margin-bottom:14px}
.s-b1b744ef.s-b1b744ef.s-b1b744ef{display:grid;gap:8px}
.s-8d65d934.s-8d65d934.s-8d65d934{color:#b8c4d6;text-decoration:none}
.s-4b044143.s-4b044143.s-4b044143{color:#b8c4d6}
.s-20950bda.s-20950bda.s-20950bda{max-width:1180px;margin:32px auto 0;padding:16px 22px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#b8c4d6;text-align:center}