:root{--ink:#172033;--muted:#667085;--line:#e6ebf1;--blue:#075bc7;--blue2:#0b7cff;--dark:#0b1830;--soft:#f4f7fb;--card:#fff;--max:1180px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink);line-height:1.65;background:#fff}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}.topbar{background:#0c1a32;color:#cbd5e1;font-size:13px}.topbar .wrap{height:34px;display:flex;gap:28px;align-items:center}.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 6px 20px rgba(16,24,40,.04)}.nav-wrap{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{width:164px;display:block}.primary-nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;align-items:center}.primary-nav a{font-size:15px;font-weight:600;color:#26334d}.primary-nav a:hover{color:var(--blue)}.menu-toggle{display:none;border:0;background:#0b1830;color:#fff;border-radius:4px;width:40px;height:38px;font-size:20px}.hero{position:relative;background:linear-gradient(115deg,#0b1830 0%,#123b72 54%,#0a65c8 100%);color:#fff;overflow:hidden}.hero:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 42%,rgba(255,255,255,.18),transparent 28%)}.hero .wrap{position:relative;z-index:1;min-height:560px;display:grid;grid-template-columns:1.04fr .96fr;gap:48px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#a9d2ff;font-weight:700;letter-spacing:.02em}.hero h1{font-size:48px;line-height:1.12;margin:18px 0 20px;letter-spacing:0}.hero p{font-size:18px;color:#e6f0ff;margin:0 0 28px}.hero-actions,.actions{display:flex;gap:14px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:4px;background:var(--blue2);color:#fff;font-weight:700;border:1px solid var(--blue2)}.button.ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}.button.light{background:#fff;color:var(--blue);border-color:#fff}.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);padding:28px;border-radius:8px;backdrop-filter:blur(8px)}.hero-card img{border-radius:6px;background:#fff}.spec-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.spec-row span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:10px;border-radius:4px;text-align:center;font-size:13px}.section{padding:74px 0}.section.alt{background:var(--soft)}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}.section-head h2{font-size:34px;line-height:1.2;margin:0}.section-head p{margin:8px 0 0;color:var(--muted);max-width:650px}.grid{display:grid;gap:22px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 10px 26px rgba(16,24,40,.06)}.card-body{padding:22px}.card h3{margin:0 0 10px;font-size:21px}.card p{margin:0;color:var(--muted)}.product-card img{aspect-ratio:4/3;object-fit:contain;background:#f7f9fc;padding:18px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.chips span{font-size:12px;color:#175cd3;background:#eaf2ff;border:1px solid #cfe2ff;padding:4px 8px;border-radius:999px}.feature{padding:24px;border:1px solid var(--line);border-radius:8px;background:#fff}.feature strong{display:block;font-size:18px;margin-bottom:8px}.feature p{margin:0;color:var(--muted)}.cta{background:#0b1830;color:#fff;padding:54px 0}.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px}.cta h2{margin:0 0 8px;font-size:30px}.cta p{margin:0;color:#cbd5e1}.page-hero{background:#0b1830;color:#fff;padding:72px 0}.page-hero h1{margin:0;font-size:40px}.page-hero p{max-width:760px;color:#cbd5e1}.content{padding:58px 0}.content h2{font-size:30px}.content p{color:#475467}.product-detail{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start}.product-detail img{background:#f7f9fc;border:1px solid var(--line);border-radius:8px;padding:22px}.spec-list{list-style:none;margin:20px 0 0;padding:0;border-top:1px solid var(--line)}.spec-list li{padding:13px 0;border-bottom:1px solid var(--line);color:#344054}.site-footer{background:#091426;color:#cbd5e1}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-top:46px;padding-bottom:40px}.site-footer h3,.site-footer h4{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#cbd5e1;margin:6px 0}.copyright{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding:16px;color:#94a3b8;font-size:13px}.notice-box{border-left:4px solid var(--blue);background:#f5f9ff;padding:18px 20px;border-radius:4px}.download-list{display:grid;gap:14px}.download-list a{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);padding:16px 18px;border-radius:6px;background:#fff;color:var(--blue);font-weight:700}@media(max-width:920px){.topbar .wrap{height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;gap:10px}.nav-wrap{height:66px}.menu-toggle{display:block}.primary-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line)}.primary-nav.open{display:block}.primary-nav ul{display:block;padding:10px 22px}.primary-nav li{border-top:1px solid var(--line)}.primary-nav a{display:block;padding:13px 0}.hero .wrap{grid-template-columns:1fr;min-height:auto;padding-top:58px;padding-bottom:58px}.hero h1{font-size:36px}.grid.three,.grid.four,.product-detail,.footer-grid{grid-template-columns:1fr}.section-head,.cta .wrap{display:block}.spec-row{grid-template-columns:repeat(2,1fr)}}


.download-center{display:grid;grid-template-columns:220px 1fr;gap:34px;align-items:start}
.download-tabs{border-top:3px solid var(--blue);background:#fff;border-radius:6px;box-shadow:0 10px 24px rgba(16,24,40,.06);overflow:hidden}
.download-tabs a{display:block;padding:17px 20px;border-bottom:1px solid var(--line);font-weight:700;color:#26334d}
.download-tabs a.active{background:#075bc7;color:#fff}
.software-panel{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.software-head{padding:24px 28px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;align-items:end}
.software-head h2{margin:0;font-size:28px}
.software-head p{margin:6px 0 0;color:var(--muted)}
.ykd-download-table{width:100%;border-collapse:collapse}
.ykd-download-table th{background:#f5f7fb;color:#344054;text-align:left;font-size:15px;padding:16px 22px;border-bottom:1px solid var(--line)}
.ykd-download-table td{padding:18px 22px;border-bottom:1px solid var(--line);vertical-align:middle}
.ykd-download-table tr:hover{background:#f8fbff}
.software-name{font-weight:700;color:#172033}
.software-note{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.download-action{display:inline-flex;align-items:center;justify-content:center;min-width:74px;height:34px;border-radius:4px;background:#075bc7;color:#fff;font-weight:700}
.download-action:hover{background:#0b7cff;color:#fff}
@media(max-width:760px){.download-center{grid-template-columns:1fr}.software-head{display:block}.ykd-download-table th:nth-child(2),.ykd-download-table td:nth-child(2){display:none}.ykd-download-table th,.ykd-download-table td{padding:14px}}


.download-section-title{margin:28px 28px 0;padding:0 0 12px;border-bottom:1px solid var(--line);font-size:22px;color:#172033}
.download-tabs a{scroll-margin-top:110px}


/* Download center category tabs */
.download-tab-panel{display:none}
.download-tab-panel.active{display:block}
.download-section-title{margin:28px 28px 0;padding:0 0 12px;border-bottom:1px solid var(--line);font-size:22px;color:#172033}
.download-tabs a{scroll-margin-top:110px}

.download-tabs br{display:none}