:root{
    --primary: rgb(70,139,223);
    --primary-dark:#1c5ead;
    --primary-soft:#eaf4ff;
    --primary-pale:#f5faff;
    --ink:#132238;
    --muted:#60718a;
    --line:#dbe8f7;
    --card:#ffffff;
    --shadow:0 14px 36px rgba(32,88,149,.11);
    --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    color:var(--ink);
    background:
        radial-gradient(circle at 15% 0%, rgba(70,139,223,.16), transparent 34%),
        linear-gradient(180deg,#f7fbff 0%,#eef7ff 42%,#ffffff 100%);
    line-height:1.72;
    font-size:16px;
    overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{
    position:sticky;
    top:0;
    z-index:20;
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(210,226,246,.72);
}
.header-inner{
    width:min(100%,760px);
    margin:0 auto;
    padding:12px 16px 10px;
}
.logo{
    display:flex;
    align-items:center;
    gap:9px;
    font-weight:800;
    letter-spacing:.2px;
    color:#12294a;
}
.logo img{width:34px;height:34px;border-radius:11px}
.mobile-nav{
    display:flex;
    gap:8px;
    margin-top:11px;
    overflow-x:auto;
    padding-bottom:2px;
    scrollbar-width:none;
}
.mobile-nav::-webkit-scrollbar{display:none}
.mobile-nav a{
    flex:0 0 auto;
    padding:7px 12px;
    border:1px solid rgba(70,139,223,.16);
    border-radius:999px;
    color:#315174;
    background:rgba(240,247,255,.76);
    font-size:13px;
}
main,.main-wrap{width:min(100%,760px);margin:0 auto;padding:0 16px 24px}
.banner{
    padding:30px 0 20px;
    display:grid;
    gap:22px;
}
.hero-card{
    position:relative;
    overflow:hidden;
    padding:25px 19px 22px;
    border:1px solid rgba(195,221,249,.9);
    border-radius:30px;
    background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(232,244,255,.92));
    box-shadow:var(--shadow);
}
.hero-card:after{
    content:"";
    position:absolute;
    width:170px;
    height:170px;
    border-radius:50%;
    right:-76px;
    top:-68px;
    background:rgba(70,139,223,.15);
}
.eyebrow,.badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:6px 10px;
    border-radius:999px;
    color:var(--primary-dark);
    background:rgba(70,139,223,.1);
    border:1px solid rgba(70,139,223,.18);
    font-size:12px;
    font-weight:700;
}
h1,h2,h3{margin:0 0 10px;color:#10233c;line-height:1.24}
h1{font-size:30px;letter-spacing:-.7px}
h2{font-size:22px;letter-spacing:-.3px}
h3{font-size:17px}
p{margin:0 0 12px;color:var(--muted)}
.lead{font-size:16px;color:#445b77;margin-bottom:18px}
.download-btn{
    display:inline-flex;
    justify-content:center;
    align-items:center;
    min-height:48px;
    padding:0 24px;
    border-radius:999px;
    border:0;
    background:var(--primary);
    color:#fff!important;
    box-shadow:0 12px 24px rgba(70,139,223,.28);
    font-weight:800;
    letter-spacing:.2px;
    cursor:pointer;
}
.download-btn:active{transform:translateY(1px)}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 0}
.tag-row span{
    padding:7px 10px;
    border-radius:999px;
    background:#fff;
    border:1px solid rgba(70,139,223,.15);
    color:#375776;
    font-size:12px;
    box-shadow:0 6px 16px rgba(38,81,127,.06);
}
.product-visual{
    position:relative;
    min-height:250px;
    display:flex;
    align-items:center;
    justify-content:center;
}
.product-visual:before{
    content:"";
    position:absolute;
    inset:24px 10px 0;
    border-radius:34px;
    background:linear-gradient(180deg,rgba(70,139,223,.14),rgba(255,255,255,.2));
    filter:blur(.2px);
}
.product-visual img{
    position:relative;
    max-height:310px;
    margin:0 auto;
    filter:drop-shadow(0 22px 32px rgba(50,93,139,.18));
}
section{margin:20px 0}
.section-head{margin-bottom:13px}
.section-head p{font-size:15px}
.card{
    border:1px solid rgba(213,229,246,.92);
    background:rgba(255,255,255,.94);
    border-radius:var(--radius);
    padding:18px;
    box-shadow:0 10px 30px rgba(37,84,132,.08);
}
.card.soft{background:linear-gradient(145deg,#ffffff,#edf7ff)}
.card + .card{margin-top:12px}
.feature-grid{display:grid;grid-template-columns:1fr;gap:12px}
.feature-card{
    padding:17px;
    border-radius:20px;
    background:#fff;
    border:1px solid rgba(70,139,223,.14);
    box-shadow:0 10px 22px rgba(41,88,142,.07);
}
.feature-card .icon{
    width:36px;height:36px;border-radius:13px;
    display:grid;place-items:center;
    color:#fff;background:var(--primary);
    margin-bottom:10px;
    font-weight:800;
}
.data-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.data-block{
    padding:13px 8px;
    border-radius:18px;
    background:rgba(70,139,223,.08);
    border:1px solid rgba(70,139,223,.12);
    text-align:center;
}
.data-block strong{display:block;color:var(--primary-dark);font-size:18px;line-height:1.15}
.data-block span{font-size:12px;color:#5c728b}
.steps{counter-reset:step;display:grid;gap:12px;margin:0;padding:0;list-style:none}
.steps li{
    position:relative;
    padding:16px 16px 16px 54px;
    border-radius:18px;
    background:#fff;
    border:1px solid rgba(70,139,223,.14);
    color:#536a84;
}
.steps li:before{
    counter-increment:step;
    content:counter(step);
    position:absolute;left:15px;top:15px;
    width:27px;height:27px;border-radius:50%;
    display:grid;place-items:center;
    color:#fff;background:var(--primary);
    font-weight:800;font-size:13px;
}
.faq-list{display:grid;gap:12px}
.faq-item{
    padding:17px;
    border-radius:20px;
    background:#fff;
    border:1px solid rgba(70,139,223,.13);
    box-shadow:0 9px 24px rgba(40,84,130,.065);
}
.faq-item h2,.faq-item h3{font-size:17px;margin-bottom:8px}
.notice{
    padding:16px;
    border-radius:20px;
    background:linear-gradient(145deg,rgba(70,139,223,.11),rgba(255,255,255,.94));
    border:1px solid rgba(70,139,223,.18);
}
.cta-panel{
    text-align:left;
    padding:22px 18px;
    border-radius:28px;
    background:linear-gradient(145deg,var(--primary),#7db5f3);
    box-shadow:0 18px 32px rgba(70,139,223,.24);
    color:#fff;
}
.cta-panel h2,.cta-panel p{color:#fff}
.cta-panel .download-btn{background:#fff;color:var(--primary)!important;box-shadow:none;margin-top:6px}
.page-hero{padding:28px 0 8px}
.page-hero .card{background:linear-gradient(145deg,#ffffff,#eef7ff)}
.article-content .card h2{font-size:19px}
.article-content ul{margin:10px 0 0;padding-left:18px;color:#5b7088}
.article-content li{margin:7px 0}
.site-footer{
    width:min(100%,760px);
    margin:24px auto 0;
    padding:22px 16px 28px;
    border-top:1px solid rgba(205,224,244,.9);
}
.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.footer-brand img{width:38px;height:38px;border-radius:12px}
.footer-brand strong{display:block;color:#132238}
.footer-brand p{font-size:13px;margin:0}
.footer-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.footer-links a{
    padding:7px 10px;border-radius:999px;background:#f2f8ff;color:#426282;font-size:13px;
    border:1px solid rgba(70,139,223,.12)
}
.footer-risk,.copyright{font-size:12px;color:#74849a;margin-bottom:8px}
.pc-notice{min-height:calc(100vh - 78px);display:grid;place-items:center;padding:26px 16px}
.pc-card{max-width:460px;text-align:center;background:#fff;border-radius:26px;padding:34px 26px;box-shadow:var(--shadow);border:1px solid rgba(70,139,223,.14)}
.pc-logo{width:56px;height:56px;border-radius:16px;margin:0 auto 16px}
.pc-card h1{font-size:26px}
.pc-note{font-size:13px;color:#8090a5}
.desktop-gate .site-header .mobile-nav a[href="download.php"]{display:none}
@media (min-width:700px){
    .banner{grid-template-columns:1.08fr .92fr;align-items:center}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    h1{font-size:38px}
    .header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
    .mobile-nav{margin-top:0}
}