/* VNET static site styles with EN/中文 and simple illustrations */
:root{
  --bg:#0A1128;--fg:#ffffff;--muted:rgba(255,255,255,.75);
  --cyan:#00C4FF;--panel:rgba(255,255,255,.06);--border:rgba(255,255,255,.12)
}
*{box-sizing:border-box}
html,body{
  margin:0;padding:0;background:var(--bg);color:var(--fg);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  scroll-behavior:smooth
}
a{color:var(--fg);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,17,40,.7);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--border)
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.5px}
.brand-icon{width:24px;height:24px}
.links{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.links a{opacity:.85}
.links a:hover{opacity:1}
.btn{
  background:var(--cyan);color:#0A1128;padding:10px 14px;
  border-radius:14px;font-weight:600;border:1px solid rgba(0,0,0,.05);cursor:pointer
}
.btn-outline{background:transparent;color:var(--fg);border:1px solid var(--border)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--fg)}
.hero{position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-30% -10% auto -10%;height:60vh;
  background:radial-gradient(60% 60% at 20% 20%, rgba(0,196,255,.35), transparent 60%)
}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;padding:80px 0}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:56px 0}
}
.hero-copy h1{font-size:40px;line-height:1.15;margin:0 0 14px}
.hero-copy p{color:var(--muted);max-width:640px}
.hero-cta{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.hero-card{
  border:1px solid var(--border);background:var(--panel);
  border-radius:20px;padding:18px;
  display:flex;flex-direction:column;gap:12px;align-items:stretch
}
.hero-illustration{
  width:100%;border-radius:16px;border:1px solid var(--border);background:#050816
}
.note{margin-top:4px;color:#8ee7ff;display:flex;gap:8px;align-items:flex-start}
.section{padding:64px 0}
.section.alt{
  background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02))
}
.section-header{max-width:800px}
.lead{color:var(--muted);max-width:800px}
.cards{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;margin-top:18px
}
@media (max-width:1000px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .cards{grid-template-columns:1fr}
}
.card{
  border:1px solid var(--border);background:var(--panel);
  border-radius:16px;padding:16px
}
.solutions-layout{
  display:grid;grid-template-columns:1.4fr .8fr;gap:20px;margin-top:20px
}
.solutions-visual img{
  width:100%;border-radius:18px;border:1px solid var(--border);background:#050816
}
@media (max-width:900px){
  .solutions-layout{grid-template-columns:1fr}
}
.grid-two{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px
}
@media (max-width:800px){
  .grid-two{grid-template-columns:1fr}
}
.panel{
  border:1px solid var(--border);background:var(--panel);
  border-radius:16px;padding:16px
}
.panel.compact{margin-top:14px}
.pill-grid{
  display:flex;flex-wrap:wrap;gap:10px;
  margin:16px 0 0;padding:0;list-style:none
}
.pill-grid li{
  border:1px solid var(--border);background:rgba(255,255,255,.04);
  padding:8px 12px;border-radius:999px
}
.about-grid{
  display:grid;grid-template-columns:1.2fr .8fr;gap:20px
}
.about-visual img{
  width:100%;border-radius:18px;border:1px solid var(--border);background:#050816;margin-bottom:10px
}
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr}
}
.ticks{margin:12px 0 0 0;padding-left:18px}
.bullets{margin:0;padding-left:16px}
.contact-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:20px
}
@media (max-width:900px){
  .contact-grid{grid-template-columns:1fr}
}
.form .row{
  display:grid;grid-template-columns:1fr 1fr;gap:12px
}
@media (max-width:700px){
  .form .row{grid-template-columns:1fr}
}
label{display:block;font-size:14px;color:var(--muted);margin:6px 0}
input,textarea{
  width:100%;margin-top:6px;padding:10px 12px;
  background:#0A1128;border:1px solid var(--border);
  color:var(--fg);border-radius:12px
}
.muted{color:var(--muted);font-size:14px;margin-top:8px}
.form-hint{color:var(--muted);font-size:13px;margin-top:6px}
.contact-item{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.footer{border-top:1px solid var(--border);margin-top:30px}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 0;font-size:14px;color:var(--muted)
}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:700px){
  .footer-inner{flex-direction:column;align-items:flex-start}
}