*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0d1117;--surface:#161b22;--border:#30363d;--gold:#d4a853;--gold-light:#f0d78c;--text:#e6edf3;--muted:#8b949e;--accent:#238636}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px}
a{color:var(--gold);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-light)}
img,svg{max-width:100%;display:block}
.container{max-width:1140px;margin:0 auto;padding:0 20px}
header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;flex-wrap:wrap;gap:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--gold)}
.logo img,.logo svg{width:32px;height:32px;flex-shrink:0;object-fit:contain}
nav ul{display:flex;list-style:none;gap:6px;flex-wrap:wrap}
nav a{padding:8px 14px;border-radius:6px;color:var(--muted);font-size:.9rem}
nav a:hover,nav a.active{background:rgba(212,168,83,.12);color:var(--gold)}
.breadcrumb{padding:14px 0;font-size:.85rem;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 8px}
.hero{padding:60px 0 50px;background:linear-gradient(135deg,#0d1117 0%,#1a2332 50%,#0d1117 100%);border-bottom:1px solid var(--border)}
.hero h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:16px;line-height:1.25}
.hero h1 span{color:var(--gold)}
.hero p{color:var(--muted);max-width:680px;font-size:1.05rem}
.badge{display:inline-block;background:rgba(212,168,83,.15);color:var(--gold);padding:4px 12px;border-radius:20px;font-size:.8rem;margin-bottom:14px;border:1px solid rgba(212,168,83,.3)}
section{padding:50px 0}
section h2{font-size:1.6rem;margin-bottom:24px;color:var(--gold);border-left:4px solid var(--gold);padding-left:14px}
section h3{font-size:1.15rem;margin:20px 0 10px;color:var(--text)}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--gold);transform:translateY(-2px)}
.card-icon{width:44px;height:44px;margin-bottom:14px;color:var(--gold)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;margin:30px 0}
.stat{text-align:center;padding:20px;background:var(--surface);border-radius:8px;border:1px solid var(--border)}
.stat strong{display:block;font-size:1.8rem;color:var(--gold)}
.stat span{font-size:.85rem;color:var(--muted)}
table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.9rem}
th,td{padding:12px 14px;text-align:left;border:1px solid var(--border)}
th{background:rgba(212,168,83,.1);color:var(--gold);font-weight:600}
tr:nth-child(even){background:rgba(255,255,255,.02)}
.faq-item{border:1px solid var(--border);border-radius:8px;margin-bottom:12px;overflow:hidden}
.faq-q{padding:16px 20px;background:var(--surface);font-weight:600;cursor:default}
.faq-a{padding:0 20px 16px;color:var(--muted);font-size:.95rem}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:all .2s}
.btn-primary{background:var(--gold);color:#0d1117}
.btn-primary:hover{background:var(--gold-light);color:#0d1117}
.btn-outline{background:transparent;border:1px solid var(--gold);color:var(--gold)}
.btn-outline:hover{background:rgba(212,168,83,.1)}
.download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin:30px 0}
.download-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:28px;text-align:center}
.download-card .os-icon{width:64px;height:64px;margin:0 auto 16px}
.download-card h3{margin-bottom:8px}
.download-card .ver{color:var(--muted);font-size:.85rem;margin-bottom:6px}
.download-card .spec{font-size:.8rem;color:var(--muted);margin-bottom:18px;line-height:1.5}
.mobile-guide{background:rgba(35,134,54,.08);border:1px solid rgba(35,134,54,.3);border-radius:10px;padding:24px;margin-top:30px}
.mobile-guide h3{color:#3fb950;margin-bottom:12px}
.param-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:16px 0}
.param-item{background:var(--surface);padding:14px;border-radius:8px;border:1px solid var(--border)}
.param-item strong{display:block;color:var(--gold);font-size:.8rem;margin-bottom:4px}
footer{background:var(--surface);border-top:1px solid var(--border);padding:40px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
footer h4{color:var(--gold);margin-bottom:12px;font-size:.95rem}
footer ul{list-style:none}
footer li{margin-bottom:6px}
footer a{color:var(--muted);font-size:.85rem}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:.8rem}
.top-bar{background:linear-gradient(90deg,#1a2332,#0d1117);border-bottom:1px solid var(--border);padding:8px 0;font-size:.82rem;text-align:center;color:var(--muted)}
.top-bar strong{color:var(--gold)}
.hero{position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(212,168,83,.08),transparent 70%);pointer-events:none}
.hero-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero-visual{border-radius:12px;overflow:hidden;border:1px solid var(--border);box-shadow:0 20px 60px rgba(0,0,0,.4)}
.hero-visual img,.hero-visual svg,.hero-visual object,.showcase-img img,.showcase-img object,.showcase-img svg,.page-hero-inner>img,.page-hero-inner>object{width:100%;height:auto;display:block;min-height:100px}
.illus-svg{width:100%;height:auto;display:block;border:0}
.illus-inline{width:100%;line-height:0}
.illus-inline svg{width:100%;height:auto;display:block}
.seo-figure{margin:0}
.seo-figure figcaption{font-size:.82rem;color:var(--muted);text-align:center;padding:10px 8px 0;line-height:1.5;border-top:1px solid var(--border);margin-top:8px}
.trust-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:20px 0}
.trust-inner{display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.85rem}
.trust-item svg{width:28px;height:28px;color:var(--gold);flex-shrink:0}
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin:30px 0}
.showcase.reverse{direction:rtl}
.showcase.reverse>*{direction:ltr}
.showcase-img{border-radius:12px;overflow:hidden;border:1px solid var(--border);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.showcase-img img{width:100%;height:auto;display:block}
.showcase-text h3{color:var(--gold);margin-top:0}
.showcase-text p{color:var(--muted);font-size:.95rem}
.icon-row{display:flex;gap:20px;flex-wrap:wrap;margin:20px 0}
.icon-box{flex:1;min-width:100px;text-align:center;padding:16px;background:var(--surface);border-radius:8px;border:1px solid var(--border);display:block;color:inherit;text-decoration:none;cursor:pointer;transition:border-color .2s,background .2s,transform .2s}
a.icon-box:hover{border-color:var(--gold);background:rgba(212,168,83,.08);transform:translateY(-2px)}
.icon-box svg{width:32px;height:32px;margin:0 auto 8px;color:var(--gold);display:block}
.icon-box span{font-size:.78rem;color:var(--muted)}
a.icon-box:hover span{color:var(--gold)}
.cta-banner{background:linear-gradient(135deg,#1a2332 0%,#0d1117 50%,#1a2332 100%);border:1px solid var(--gold);border-radius:12px;padding:40px;text-align:center;margin:40px 0;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h1v1H0z' fill='%23d4a853' opacity='.05'/%3E%3C/svg%3E");opacity:.5}
.cta-banner h2{border:none;padding:0;margin-bottom:12px}
.cta-banner p{color:var(--muted);margin-bottom:20px;max-width:500px;margin-left:auto;margin-right:auto}
.page-hero{padding:40px 0;background:var(--surface);border-bottom:1px solid var(--border)}
.page-hero-inner{display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.page-hero-icon{width:80px;height:80px;padding:16px;background:rgba(212,168,83,.1);border-radius:12px;border:1px solid rgba(212,168,83,.3);flex-shrink:0}
.page-hero-icon svg{width:100%;height:100%;color:var(--gold)}
.testimonial{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px;margin:16px 0;position:relative}
.testimonial::before{content:'\201C';position:absolute;top:10px;left:16px;font-size:3rem;color:var(--gold);opacity:.3;line-height:1;font-family:Georgia,serif}
.testimonial p{color:var(--muted);font-size:.92rem;padding-left:20px;font-style:italic}
.testimonial cite{display:block;margin-top:12px;padding-left:20px;font-size:.82rem;color:var(--gold);font-style:normal}
.progress-bar{background:var(--border);height:8px;border-radius:4px;overflow:hidden;margin:8px 0}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--gold),var(--gold-light));border-radius:4px}
.card-img{height:140px;background:linear-gradient(135deg,#1a2332,#0d1117);border-radius:8px 8px 0 0;margin:-24px -24px 16px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--border)}
.card-img svg{width:64px;height:64px;color:var(--gold);opacity:.7}
.card.has-img{padding-top:0;overflow:hidden}
footer .social{display:flex;gap:12px;margin-top:12px}
footer .social a{width:36px;height:36px;border-radius:8px;background:rgba(212,168,83,.1);display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}
footer .social a:hover{background:rgba(212,168,83,.2)}
footer .social svg{width:18px;height:18px;color:var(--gold)}
@media(max-width:640px){
  nav ul{width:100%;justify-content:center}
  .hero{padding:40px 0 30px}
  .hero-split,.showcase{grid-template-columns:1fr}
  .showcase.reverse{direction:ltr}
  table{display:block;overflow-x:auto;white-space:nowrap}
}

.hero-dl-wrap{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.hero-dl-btn{font-size:1.05rem!important;padding:14px 32px!important;font-weight:700!important}