:root{--ink:#10233f;--muted:#60708a;--line:#dce5ef;--paper:#f7f9fc;--white:#fff;--blue:#1769e0;--blue2:#0e4fae;--mint:#20b486;--navy:#071b36;--shadow:0 18px 50px rgba(20,54,92,.12);--radius:22px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--white);font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.02em}
.brand img{width:40px;height:40px;border-radius:11px}
.nav{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:650}
.nav a:hover,.nav a[aria-current=page]{color:var(--blue)}
.language{display:flex;align-items:center;gap:7px}
.language label{font-size:0}
.language select{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 30px 8px 10px;color:var(--ink)}
.menu-btn{display:none;border:0;background:none;font-size:26px;color:var(--ink)}
.hero{overflow:hidden;background:radial-gradient(circle at 80% 15%,#dcecff 0,transparent 35%),linear-gradient(135deg,#f7fbff,#eef5ff);padding:84px 0 76px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:64px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);background:#e7f0ff;border-radius:99px;padding:7px 13px;font-size:13px;font-weight:750}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
h1,h2,h3{line-height:1.2;letter-spacing:-.035em;margin-top:0}
h1{font-size:clamp(42px,6vw,72px);margin:20px 0}
h2{font-size:clamp(30px,4vw,48px);margin-bottom:16px}
h3{font-size:21px;margin-bottom:9px}
.lead{font-size:19px;color:var(--muted);max-width:650px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:29px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:12px;font-weight:750;border:1px solid var(--line);background:#fff}
.btn-primary{background:var(--blue);border-color:var(--blue);color:white;box-shadow:0 12px 25px rgba(23,105,224,.25)}
.btn-primary:hover{background:var(--blue2)}
.micro{display:flex;flex-wrap:wrap;gap:18px;color:#425571;font-size:14px}
.micro span:before{content:"✓";color:var(--mint);font-weight:900;margin-right:6px}
.hero-media{position:relative}
.hero-media:before{content:"";position:absolute;inset:8% -5% -5% 8%;background:var(--blue);border-radius:32px;transform:rotate(3deg);opacity:.15}
.hero-media img{position:relative;display:block;width:880px;aspect-ratio:44/35;object-fit:cover;border-radius:28px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.8)}
.section{padding:92px 0}
.section-soft{background:var(--paper)}
.section-dark{background:var(--navy);color:#fff}
.section-dark .muted{color:#aac0dc}
.section-head{max-width:720px;margin:0 auto 44px;text-align:center}
.kicker{color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}
.muted{color:var(--muted)}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 25px rgba(17,48,85,.05)}
.card p{color:var(--muted);margin-bottom:0}
.icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:#e9f2ff;color:var(--blue);font-weight:900;margin-bottom:22px}
.topic-card{min-height:170px;display:flex;flex-direction:column;justify-content:space-between}
.topic-card .arrow{color:var(--blue);font-weight:800}
.split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:72px}
.checklist{list-style:none;padding:0;margin:25px 0}
.checklist li{margin:12px 0;padding-left:29px;position:relative}
.checklist li:before{content:"✓";position:absolute;left:0;color:var(--mint);font-weight:900}
.platform{display:flex;align-items:flex-start;gap:17px}
.platform strong{display:block}
.faq{max-width:820px;margin:auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:12px 0}
.faq summary{cursor:pointer;font-weight:750}
.faq p{color:var(--muted)}
.page-hero{padding:68px 0;background:linear-gradient(135deg,#f0f6ff,#fbfdff);border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(38px,5vw,60px);max-width:850px}
.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:14px}
.download-panel{background:linear-gradient(135deg,#0c57c7,#1594d6);color:#fff;border-radius:28px;padding:42px}
.download-panel .btn{color:var(--blue)}
.step{display:grid;grid-template-columns:54px 1fr;gap:18px}
.step-no{width:48px;height:48px;border:1px solid #9dbff0;border-radius:50%;display:grid;place-items:center;color:var(--blue);font-weight:850}
.notice{border-left:4px solid var(--mint);background:#effbf7;padding:20px 24px;border-radius:0 14px 14px 0}
.cta{background:linear-gradient(135deg,#081e3c,#124985);color:#fff;border-radius:28px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:34px;margin:0 0 8px}
.site-footer{background:#05162c;color:#d4e0ee;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:38px}
.footer-title{color:#fff;font-weight:800;margin-bottom:14px}
.footer-list{list-style:none;padding:0;margin:0}
.footer-list li{margin:8px 0}
.footer-list a:hover{color:#fff}
.footer-bottom{border-top:1px solid #263a53;margin-top:42px;padding-top:22px;font-size:13px;color:#91a6c0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
@media(max-width:900px){.nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;padding:22px;flex-direction:column;border-bottom:1px solid var(--line)}.nav.open{display:flex}.menu-btn{display:block}.hero-grid,.split{grid-template-columns:1fr}.hero{padding-top:55px}.hero-media{max-width:620px}.grid-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.container{width:min(100% - 28px,1160px)}.section{padding:66px 0}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.hero-grid{gap:40px}.cta{padding:32px;align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.language select{max-width:105px}.brand span{font-size:14px}.download-panel{padding:28px}}