:root{--blue:#0864f5;--blue2:#22a5ff;--ink:#101a2d;--muted:#71809a;--line:#e8eef7;--pale:#f4f8ff;--navy:#101a2e;--gold:#e9ab32}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.75}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1140px,calc(100% - 40px));margin:auto}
.topbar{background:#0d1a2e;color:#d9e6fa;font-size:13px}.topinner{min-height:46px;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:7px 0}
.topinner b{color:#fff}.copy{border:0;border-radius:20px;padding:5px 12px;background:var(--gold);color:#172033;font-weight:700;cursor:pointer;margin-left:7px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid #edf1f7}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:800;color:var(--blue);white-space:nowrap}
.logo{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#0870ff,#22b5ff);display:grid;place-items:center;color:white;box-shadow:0 7px 18px #0870ff40}
.links{display:flex;align-items:center;gap:23px;font-size:14px;font-weight:700}.links a:hover,.links a.active{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:30px;padding:11px 22px;background:var(--blue);color:#fff;font-weight:700;box-shadow:0 8px 18px #0864f536;cursor:pointer;transition:.2s}
.btn:hover{transform:translateY(-2px);background:#0053d6}.btn.light{background:#eef5ff;color:var(--blue);box-shadow:none}
.menu{display:none;background:none;border:0;font-size:25px;color:var(--ink)}
.hero{background:radial-gradient(circle at 78% 25%,#dceaff 0,transparent 35%),linear-gradient(120deg,#f1f7ff,#fff 70%);padding:72px 0}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:55px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #c9ddff;background:#eaf3ff;color:var(--blue);padding:5px 13px;border-radius:24px;font-size:13px;font-weight:700}
h1{font-size:clamp(32px,4vw,46px);line-height:1.25;letter-spacing:-1px;margin:18px 0}.gradient{color:var(--blue)}.lead{font-size:16px;color:var(--muted);max-width:570px}
.hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:24px 0 12px}.hint{font-size:13px;color:#8292aa}
.hero-img{width:100%;height:365px;object-fit:cover;border-radius:20px;box-shadow:0 22px 55px #19375b24}
.quick{border-bottom:1px solid var(--line)}.quickgrid{display:grid;grid-template-columns:repeat(4,1fr)}.quickitem{padding:22px 18px;border-right:1px solid var(--line)}.quickitem:last-child{border:0}.quickitem small{color:#8793a6}.quickitem strong{display:block;margin:4px 0;font-size:16px}.quickitem span{font-size:13px;color:var(--muted)}
section{padding:76px 0}.section-head{text-align:center;max-width:730px;margin:0 auto 38px}.section-head h2{font-size:31px;line-height:1.35;margin:13px 0 8px}.section-head p{color:var(--muted);margin:0}
.soft{background:#f6f9fd}.about{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.about img{width:100%;height:420px;object-fit:cover;border-radius:18px}.muted{color:var(--muted)}
.feature{display:flex;gap:14px;padding:14px;margin:12px 0;border:1px solid var(--line);border-radius:14px;background:#f9fbff}.ico{width:42px;height:42px;flex:none;border-radius:12px;background:#eaf3ff;color:var(--blue);display:grid;place-items:center;font-size:20px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.cards.four{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 8px 25px #1d3a5b08;transition:.2s}.card:hover{transform:translateY(-4px);box-shadow:0 15px 35px #1d3a5b14}
.card img{width:100%;height:190px;object-fit:cover}.cardbody{padding:19px}.cardbody h3{font-size:17px;line-height:1.5;margin:0 0 8px}.cardbody p{font-size:13px;color:var(--muted);margin:0 0 12px}.more{font-size:13px;font-weight:700;color:var(--blue)}
.page-hero{padding:54px 0;background:linear-gradient(120deg,#f0f6ff,#fff);border-bottom:1px solid var(--line)}.page-hero h1{font-size:35px;margin:8px 0}.crumb{font-size:13px;color:var(--muted)}.crumb a{color:var(--blue)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.panel{padding:28px;border-radius:17px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 30px #1b365408}.panel.blue{background:linear-gradient(135deg,#0759df,#21a4ff);color:#fff;border:0}.panel.blue p{color:#e6f2ff}
.article-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(230px,1fr);gap:35px;align-items:start}.article{padding:30px;border:1px solid var(--line);border-radius:16px}.article h1{font-size:30px}.article h2{font-size:22px;margin-top:28px}.article p{color:#596a83}.article-meta{font-size:13px;color:#8a97aa;border-bottom:1px solid var(--line);padding-bottom:16px}.article img{width:100%;max-height:380px;object-fit:cover;border-radius:12px;margin:20px 0}
.sidebox{padding:22px;border:1px solid var(--line);border-radius:15px;margin-bottom:18px}.sidebox h3{margin:0 0 12px}.sidebox a{display:block;padding:8px 0;color:var(--muted);border-bottom:1px solid #f0f3f8;font-size:14px}.sidebox a:hover{color:var(--blue)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product-card{border:1px solid var(--line);border-radius:16px;padding:24px;background:#fff}.product-card .ico{width:48px;height:48px}.product-card h3{margin:14px 0 5px}.product-card p{color:var(--muted);font-size:14px}
.faq{max-width:850px;margin:auto}.faq details{border:1px solid var(--line);border-radius:12px;margin:12px 0;padding:17px 20px;background:#fff}.faq summary{cursor:pointer;font-weight:700;color:var(--blue)}.faq details p{color:var(--muted);margin-bottom:0}
.contact{background:linear-gradient(135deg,#0f1a2e,#172b4b);color:white}.contact p{color:#c0cde0}.contactgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}.contactbox{padding:28px;border:1px solid #ffffff24;border-radius:16px;background:#ffffff0b}.contactrow{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid #ffffff20}.contactrow:last-child{border:0}
footer{background:#081222;color:#aab7ca;padding:30px 0;font-size:13px}.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.float{position:fixed;right:22px;bottom:22px;z-index:30;display:flex;flex-direction:column;gap:9px}.float a,.float button{border:0;border-radius:50px;background:var(--blue);color:white;padding:11px 17px;box-shadow:0 8px 24px #075ee84d;cursor:pointer;font-weight:700}
@media(max-width:900px){.links{gap:12px;font-size:13px}.cards.four{grid-template-columns:repeat(2,1fr)}.hero-grid{gap:28px}.quickgrid{grid-template-columns:repeat(2,1fr)}.quickitem:nth-child(2){border-right:0}}
@media(max-width:680px){.topinner{font-size:11px}.nav{height:66px}.menu{display:block}.links{display:none;position:absolute;top:66px;left:0;right:0;padding:18px 22px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}.links.open{display:flex}.nav>.btn{display:none}.brand{font-size:18px}.hero{padding:46px 0}.hero-grid,.about,.split,.contactgrid,.article-layout{grid-template-columns:1fr}.hero-img{height:250px}.quickitem{padding:15px 9px}.quickitem strong{font-size:14px}.quickitem span{font-size:12px}section{padding:55px 0}.section-head h2{font-size:25px}.about img{height:270px}.cards,.cards.four,.product-grid{grid-template-columns:1fr 1fr;gap:12px}.card img{height:130px}.cardbody{padding:13px}.cardbody h3{font-size:14px}.cardbody p{font-size:12px}.page-hero h1{font-size:29px}.article{padding:20px}.article h1{font-size:25px}.float{right:12px;bottom:12px}}
@media(max-width:420px){.cards,.cards.four,.product-grid{grid-template-columns:1fr}.hero-actions .btn{width:100%}}