:root{
    --primary: rgb(70,139,223);
    --primary-dark: #1f5fae;
    --primary-soft: #eaf4ff;
    --ink: #14233d;
    --muted: #65738a;
    --line: rgba(70,139,223,.16);
    --card: rgba(255,255,255,.92);
    --radius: 22px;
    --shadow: 0 14px 36px rgba(31,95,174,.10);
}
*{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 14% 0%, rgba(70,139,223,.18), transparent 34%),
        linear-gradient(180deg,#f8fbff 0%,#eef6ff 44%,#ffffff 100%);
    font-size:16px;
    line-height:1.72;
    -webkit-font-smoothing:antialiased;
}
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,.86);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
}
.header-inner{padding:12px 16px 10px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;color:#17345d;font-size:17px}
.logo{width:34px;height:34px;border-radius:11px;box-shadow:0 8px 20px rgba(70,139,223,.18)}
.mobile-nav{display:flex;gap:10px;overflow-x:auto;padding-top:12px;white-space:nowrap;scrollbar-width:none}
.mobile-nav::-webkit-scrollbar{display:none}
.mobile-nav a{
    flex:0 0 auto;
    padding:7px 12px;
    border-radius:999px;
    background:#f2f7ff;
    color:#315171;
    font-size:13px;
    border:1px solid rgba(70,139,223,.12)
}
.site-main{padding:18px 16px 34px}
.hero,.page-hero{
    position:relative;
    overflow:hidden;
    border-radius:30px;
    padding:24px 20px;
    background:linear-gradient(145deg,#ffffff 0%,#edf6ff 58%,#dbeeff 100%);
    box-shadow:var(--shadow);
    border:1px solid rgba(255,255,255,.75);
}
.hero:before,.page-hero:before{
    content:"";
    position:absolute;
    width:210px;height:210px;
    right:-86px;top:-86px;
    background:radial-gradient(circle,rgba(70,139,223,.22),transparent 70%);
}
.eyebrow,.tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 10px;
    border-radius:999px;
    background:rgba(70,139,223,.10);
    color:var(--primary-dark);
    font-size:12px;
    font-weight:700;
}
h1,h2,h3{margin:0;color:#102747;line-height:1.25}
h1{font-size:30px;letter-spacing:-.4px;margin-top:14px}
h2{font-size:22px;margin-bottom:12px}
h3{font-size:17px;margin-bottom:7px}
p{margin:0 0 12px;color:#4c5d75}
.lead{font-size:16px;color:#40516a;margin-top:12px}
.hero-grid{display:grid;gap:18px;position:relative;z-index:1}
.hero-visual{
    margin:10px auto 0;
    width:min(260px,86%);
    padding:14px;
    border-radius:28px;
    background:rgba(255,255,255,.62);
    box-shadow:inset 0 0 0 1px rgba(70,139,223,.12),0 18px 40px rgba(70,139,223,.13)
}
.badge-row,.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.badge,.pill{
    display:inline-flex;
    align-items:center;
    padding:7px 10px;
    border-radius:999px;
    background:rgba(255,255,255,.78);
    border:1px solid rgba(70,139,223,.14);
    color:#2f5786;
    font-size:12px;
    font-weight:650;
}
.download-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    padding:0 24px;
    border-radius:999px;
    background:var(--primary);
    color:#fff !important;
    font-weight:800;
    letter-spacing:.3px;
    border:none;
    box-shadow:0 12px 26px rgba(70,139,223,.25);
}
.download-btn:active{transform:translateY(1px)}
.section{margin-top:22px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}
.section-sub{font-size:13px;color:var(--muted)}
.card{
    background:var(--card);
    border:1px solid rgba(70,139,223,.12);
    border-radius:var(--radius);
    padding:18px;
    box-shadow:0 10px 26px rgba(31,95,174,.07);
    margin-bottom:12px;
}
.card.soft{background:linear-gradient(180deg,#f4f9ff,#ffffff)}
.feature-grid{display:grid;gap:12px}
.feature-card{
    background:#fff;
    border:1px solid rgba(70,139,223,.12);
    border-radius:20px;
    padding:16px;
    box-shadow:0 8px 20px rgba(31,95,174,.06)
}
.icon-dot{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:12px;
    background:var(--primary-soft);
    color:var(--primary-dark);
    font-weight:900;
    margin-bottom:10px;
}
.data-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.data-block{
    padding:14px;
    border-radius:18px;
    background:#fff;
    border:1px solid rgba(70,139,223,.12)
}
.data-block strong{display:block;font-size:20px;color:var(--primary-dark)}
.data-block span{font-size:12px;color:var(--muted)}
.steps{counter-reset:step;display:grid;gap:12px;margin-top:12px}
.step{
    position:relative;
    padding:16px 16px 16px 54px;
    border-radius:20px;
    background:#fff;
    border:1px solid rgba(70,139,223,.12)
}
.step:before{
    counter-increment:step;
    content:counter(step);
    position:absolute;
    left:16px;top:16px;
    width:26px;height:26px;
    border-radius:9px;
    background:var(--primary);
    color:#fff;
    display:grid;place-items:center;
    font-weight:800;
    font-size:13px;
}
.notice{
    border-left:4px solid var(--primary);
    background:#f2f8ff;
    border-radius:18px;
    padding:15px;
    color:#33516d;
}
.faq-item{
    background:#fff;
    border:1px solid rgba(70,139,223,.12);
    border-radius:20px;
    padding:16px;
    margin-bottom:12px;
}
.faq-item h3{font-size:16px}
.cta-panel{
    margin-top:22px;
    padding:22px;
    border-radius:26px;
    background:linear-gradient(135deg,rgba(70,139,223,.13),rgba(255,255,255,.92));
    border:1px solid rgba(70,139,223,.14);
    text-align:left;
}
.cta-panel .download-btn{margin-top:8px}
.site-footer{padding:0 16px 28px}
.footer-card{
    border-radius:24px;
    padding:18px;
    background:#102747;
    color:#fff;
    box-shadow:0 14px 30px rgba(16,39,71,.12);
}
.footer-card p{color:rgba(255,255,255,.72);font-size:13px}
.footer-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.footer-links a{font-size:12px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.10);color:#fff}
.copyright{text-align:center;font-size:12px;color:#7a8797;margin-top:12px}
.pc-visit-panel{display:none}
.pc-logo{width:48px;height:48px;border-radius:15px;margin:0 auto 12px}
.desktop-gate{background:#f7fbff;min-height:100vh}
.desktop-gate .pc-visit-panel{display:grid;min-height:100vh;place-items:center;padding:24px}
.desktop-gate .pc-visit-card{width:min(420px,92vw);text-align:center;background:#fff;border-radius:26px;padding:30px;box-shadow:var(--shadow);border:1px solid var(--line)}
.desktop-gate .pc-visit-card h1{font-size:26px;margin:8px 0 10px}
.desktop-gate .site-header,.desktop-gate .site-main,.desktop-gate .site-footer{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.desktop-gate .download-btn{display:none!important}
@media (min-width:720px){
    .site-main,.site-footer,.header-inner{max-width:430px;margin:0 auto}
}