*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#f5f6f7;
  --panel:#ffffff;
  --line:#dfe3e8;
  --line-dark:#252a33;
  --text:#14171d;
  --muted:#68707d;
  --accent:#ff7e29;
  --accent-soft:#fff1e8;
  --dark:#14171d;
  --shadow:0 20px 60px rgba(20,23,29,.08);
  --radius:26px;
}
body{
  margin:0;
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f5f6f7 0%,#ffffff 100%);
  line-height:1.72;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.side-nav{
  position:sticky;top:0;height:100vh;background:#14171d;color:#fff;
  padding:26px 20px;border-right:1px solid #252a33;display:flex;flex-direction:column;z-index:40
}
.side-brand{display:flex;flex-direction:column;gap:8px;padding-bottom:26px;border-bottom:1px solid #252a33}
.brand-mark{
  width:46px;height:46px;border-radius:14px;background:var(--accent);color:#14171d;
  display:grid;place-items:center;font-weight:900;font-size:20px
}
.side-brand strong{font-size:18px;line-height:1.1}
.side-brand em{font-style:normal;color:#a7b0bf;font-size:11px;letter-spacing:.15em}
.side-nav nav{display:grid;gap:8px;margin-top:24px}
.side-nav nav a{
  color:#d8dde6;padding:12px 14px;border-radius:14px;font-size:14px;font-weight:700
}
.side-nav nav a:hover{background:#202630;color:#fff}
.side-contact{
  margin-top:auto;border:0;border-radius:16px;background:var(--accent);color:#14171d;
  padding:14px 18px;font-weight:900;cursor:pointer
}
.page{min-width:0}
.mobile-header{display:none}
main{padding:24px}
.hero{
  display:grid;grid-template-columns:.88fr 1.12fr;gap:22px;min-height:660px
}
.panel,.dash-card,.section-media,.product-command-card,.compare-board,.download-panel,.setup-grid article,.security-copy,.security-media,.insight-grid article,.support-copy,.support-media,.faq-list details,.entry-hero-copy,.entry-hero-img,.entry-cards article{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.hero-left{padding:34px;display:flex;flex-direction:column;justify-content:center}
.eyebrow{
  display:inline-flex;width:max-content;color:var(--accent);font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:900
}
.hero h1,.section-copy h2,.section-head h2,.download-copy h2,.security-copy h2,.support-copy h2,.entry-hero h1,.entry-cards h2{
  margin:14px 0 12px;font-size:clamp(34px,5vw,70px);line-height:.98;letter-spacing:-.055em
}
.hero p,.section-copy p,.section-head p,.product-body p,.download-copy p,.setup-grid p,.security-copy li,.insight-grid p,.support-copy p,.faq-list p,.entry-hero p,.entry-cards p{
  margin:0;color:var(--muted)
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.btn{
  border:1px solid transparent;border-radius:999px;padding:12px 18px;
  font-weight:800;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:.22s
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#14171d}
.btn-dark{background:#14171d;color:#fff}
.btn-line{background:#fff;border-color:var(--line);color:#14171d}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
.metric-grid div{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fafafa}
.metric-grid strong{display:block;font-size:26px;color:var(--accent)}
.metric-grid span{font-size:13px;color:var(--muted)}
.hero-right{position:relative;border-radius:var(--radius);overflow:hidden;background:#000;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-image{height:100%}
.hero-image img{width:100%;height:100%;object-fit:cover}
.floating-status{
  position:absolute;left:24px;bottom:24px;background:rgba(255,255,255,.92);
  border:1px solid rgba(255,255,255,.4);border-radius:20px;padding:14px 16px;box-shadow:var(--shadow)
}
.floating-status.status-b{left:auto;right:24px;top:24px;bottom:auto}
.floating-status span{display:block;font-size:12px;color:var(--muted)}
.floating-status strong{font-size:18px}

.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:24px}
.dash-card{padding:24px;text-align:left;cursor:pointer}
.dash-card.highlight{background:var(--accent-soft)}
.dash-card span{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#14171d;color:#fff;font-weight:900;margin-bottom:16px}
.dash-card h2{margin:0 0 8px;font-size:24px;line-height:1.08}
.dash-card p{margin:0 0 14px;color:var(--muted)}
.dash-card b{word-break:break-all}

.section{padding:48px 24px}
.split-overview,.download-panel,.security-grid,.support-grid,.entry-hero{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}
.section-copy{padding:10px 0}
.check-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px}
.check-list li{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 16px;box-shadow:var(--shadow)}
.section-media{overflow:hidden}
.section-media img{width:100%;height:100%;object-fit:cover}
.section-head{margin-bottom:22px;max-width:900px}
.section-head p{max-width:720px}
.product-command-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.product-command-card{display:grid;grid-template-columns:220px 1fr;gap:18px;padding:18px;align-items:center}
.product-img{background:#f6f6f6;border:1px solid var(--line);border-radius:22px;padding:14px}
.product-img img{width:100%;aspect-ratio:1/1;object-fit:contain}
.product-body span{color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.12em}
.product-body h3{margin:8px 0;font-size:28px;letter-spacing:-.04em}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tags b,.support-tags span{
  font-size:13px;background:#f8f8f8;border:1px solid var(--line);border-radius:999px;padding:8px 12px
}
.compare-board{overflow:hidden}
.compare-row{
  display:grid;grid-template-columns:1fr 1.4fr 1.2fr 1fr 1.4fr .65fr;
  gap:14px;padding:16px 20px;align-items:center;border-bottom:1px solid var(--line)
}
.compare-row:last-child{border-bottom:0}
.compare-title{background:#14171d;color:#fff;font-weight:900}
.compare-row span,.compare-row strong{font-size:14px}
.mini-btn{
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 13px;cursor:pointer
}
.download-panel{padding:0;overflow:hidden}
.download-copy{padding:34px}
.download-list{display:grid;gap:12px;margin:20px 0 24px}
.download-list div{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff}
.download-list strong{display:block;margin-bottom:4px}
.download-list span{color:var(--muted);font-size:14px}
.download-img img{width:100%;height:100%;object-fit:cover}
.setup-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.setup-grid article{padding:22px}
.setup-grid b{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#14171d;color:#fff;margin-bottom:16px}
.setup-grid h3{margin:0 0 8px;font-size:24px}
.security-grid{align-items:stretch}
.security-media{overflow:hidden}
.security-media img{width:100%;height:100%;object-fit:cover}
.security-copy{padding:32px}
.security-copy ul{margin:20px 0 0;padding-left:18px}
.security-copy li{margin-bottom:12px}
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.insight-grid article{padding:24px}
.insight-grid h3{margin:0 0 12px;font-size:25px;line-height:1.08;letter-spacing:-.04em}
.support-copy{padding:32px}
.support-tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.support-actions{display:flex;gap:12px;flex-wrap:wrap}
.support-media{overflow:hidden}
.support-media img{width:100%;height:100%;object-fit:cover}
.faq-list{display:grid;gap:12px}
.faq-list details{padding:18px 20px}
.faq-list summary{list-style:none;cursor:pointer;font-weight:900}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list p{margin-top:12px}
.site-footer{
  margin:24px;padding:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:24px
}
.footer-left strong{font-size:20px}
.footer-left p{margin:8px 0 0;color:var(--muted);max-width:620px}
.footer-right{display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.footer-contact{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer}

.modal{display:none;position:fixed;inset:0;z-index:100;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(20,23,29,.55);backdrop-filter:blur(8px)}
.modal-panel{position:relative;z-index:2;width:min(430px,calc(100% - 28px));background:#fff;border-radius:28px;padding:28px;text-align:center;box-shadow:0 40px 100px rgba(20,23,29,.25)}
.modal-close{position:absolute;right:16px;top:12px;background:transparent;border:0;font-size:30px;cursor:pointer}
.modal-panel h2{margin:0 0 18px;font-size:30px}
.qr-box{border:1px solid var(--line);border-radius:22px;padding:10px;overflow:hidden}
.qr-box img{width:100%}
.modal-links{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.modal-links a{background:#f6f6f6;border:1px solid var(--line);border-radius:999px;padding:10px 14px}
.float-contact{position:fixed;right:18px;bottom:18px;z-index:50;border:0;background:var(--accent);color:#14171d;border-radius:999px;padding:14px 18px;font-weight:900;cursor:pointer;box-shadow:0 16px 34px rgba(255,126,41,.22)}

.entry-hero{padding:24px}
.entry-hero-copy,.entry-hero-img{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.entry-hero-copy{padding:32px}
.entry-hero-img img{width:100%;height:100%;object-fit:cover}
.entry-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:24px}
.entry-cards article{padding:24px}
.entry-cards h2{margin:10px 0}
.entry-cards strong{display:block;margin:16px 0;word-break:break-all}

.mobile-header{display:none}
.lock{overflow:hidden}

@media(max-width:1180px){
  .app-shell{grid-template-columns:1fr}
  .side-nav{display:none}
  .mobile-header{display:flex;position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;padding:14px 20px}
  .mobile-brand{display:flex;align-items:center;gap:10px}
  .menu-toggle{background:transparent;border:0;display:flex;flex-direction:column;gap:5px}
  .menu-toggle span{width:24px;height:2px;background:#14171d}
  .hero,.dashboard-grid,.split-overview,.product-command-grid,.download-panel,.security-grid,.support-grid,.entry-hero,.entry-cards,.insight-grid{grid-template-columns:1fr}
  .dashboard-grid{grid-template-columns:repeat(2,1fr)}
  .product-command-card{grid-template-columns:1fr}
  .setup-grid{grid-template-columns:repeat(2,1fr)}
  .compare-row{grid-template-columns:1fr 1fr}
  .compare-title{display:none}
}
@media(max-width:760px){
  main,.section,.dashboard-grid,.entry-cards{padding:14px}
  .hero{padding:14px}
  .dashboard-grid,.setup-grid{grid-template-columns:1fr}
  .hero h1,.section-copy h2,.section-head h2,.download-copy h2,.security-copy h2,.support-copy h2,.entry-hero h1{font-size:38px}
  .metric-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr}
  .hero-left,.download-copy,.security-copy,.support-copy,.entry-hero-copy{padding:22px}
  .site-footer{flex-direction:column;align-items:flex-start}
  .footer-right{align-items:flex-start}
}