/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  background:#0a1628;color:#e0e6f0;line-height:1.6;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}

/* ===== CSS Variables ===== */
:root{
  --bg:#0a1628;--bg2:#111d33;--bg3:#1a2a4a;
  --cyan:#00d4ff;--blue:#4f8cff;--accent:#00d4ff;
  --text:#e0e6f0;--text2:#a0b0c8;--text3:#6b7a94;
  --card:rgba(255,255,255,0.04);--border:rgba(0,212,255,0.15);
  --gradient:linear-gradient(135deg,#00d4ff,#4f8cff);
}

/* ===== Layout ===== */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:80px 0;position:relative}
.section-title{
  font-size:32px;font-weight:700;text-align:center;margin-bottom:12px;
  background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.section-sub{text-align:center;color:var(--text2);font-size:15px;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}

/* ===== Header ===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:16px 0;transition:all .3s ease;
  background:transparent;
}
.header.scrolled{
  background:rgba(10,22,40,0.92);backdrop-filter:blur(12px);
  box-shadow:0 2px 20px rgba(0,0,0,0.3);padding:12px 0;
}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{
  width:36px;height:36px;border-radius:8px;background:var(--gradient);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#0a1628;
}
.logo-text{font-size:20px;font-weight:700;letter-spacing:1px}
.logo-text span{color:var(--cyan)}
.nav{display:flex;align-items:center;gap:32px}
.nav a{font-size:14px;color:var(--text2);transition:color .2s;position:relative}
.nav a:hover,.nav a.active{color:var(--cyan)}
.nav a.active::after{
  content:'';position:absolute;bottom:-6px;left:0;right:0;height:2px;background:var(--gradient);border-radius:2px;
}
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:6px;
  font-size:14px;font-weight:600;cursor:pointer;transition:all .25s;border:none;
}
.btn-primary{background:var(--gradient);color:#0a1628}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,212,255,0.35)}
.btn-outline{border:1px solid var(--cyan);color:var(--cyan);background:transparent}
.btn-outline:hover{background:rgba(0,212,255,0.1)}
.btn-lg{padding:14px 32px;font-size:16px}
.nav-cta{display:flex;align-items:center;gap:12px}
.investor-badge{
  background:linear-gradient(135deg,#ff8c00,#ffaa00);color:#1a1a2e;
  padding:4px 10px;border-radius:4px;font-size:11px;font-weight:700;letter-spacing:0.5px;
}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none}
.mobile-toggle span{width:24px;height:2px;background:var(--text);transition:.3s}

/* ===== Hero ===== */
.hero{
  min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;
  padding-top:80px;
}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 50%,rgba(0,212,255,0.08) 0%,transparent 50%),
    radial-gradient(ellipse at 80% 20%,rgba(79,140,255,0.1) 0%,transparent 50%),
    radial-gradient(ellipse at 50% 80%,rgba(0,212,255,0.05) 0%,transparent 50%);
}
.hero-grid{
  position:absolute;inset:0;opacity:0.06;
  background-image:linear-gradient(rgba(0,212,255,0.3) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,0.3) 1px,transparent 1px);
  background-size:60px 60px;
}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero h1{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px}
.hero h1 .grad{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:17px;color:var(--text2);margin-bottom:32px;max-width:520px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;
}
.stat-card{
  background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px;
  text-align:center;backdrop-filter:blur(8px);
}
.stat-card .num{font-size:28px;font-weight:800;color:var(--cyan)}
.stat-card .label{font-size:12px;color:var(--text3);margin-top:4px}
.hero-visual{position:relative;height:400px}
.hero-orb{
  position:absolute;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,212,255,0.2),rgba(79,140,255,0.05) 70%,transparent);
  top:50%;left:50%;transform:translate(-50%,-50%);animation:pulse 4s ease-in-out infinite;
}
.hero-ring{
  position:absolute;border:1px solid rgba(0,212,255,0.2);border-radius:50%;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.hero-ring:nth-child(2){width:200px;height:200px;animation:spin 20s linear infinite}
.hero-ring:nth-child(3){width:280px;height:280px;animation:spin 30s linear infinite reverse}
.hero-ring::before{
  content:'';position:absolute;width:8px;height:8px;border-radius:50%;background:var(--cyan);
  top:-4px;left:50%;transform:translateX(-50%);box-shadow:0 0 12px var(--cyan);
}
@keyframes pulse{0%,100%{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.1)}}
@keyframes spin{from{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}
.scroll-hint{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  color:var(--text3);font-size:12px;display:flex;flex-direction:column;align-items:center;gap:8px;
  animation:bounce 2s infinite;
}
.scroll-hint .arrow{width:20px;height:20px;border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(45deg)}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ===== Cards Grid ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;
  transition:all .3s ease;backdrop-filter:blur(8px);position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--gradient);opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-6px);border-color:rgba(0,212,255,0.4);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.card:hover::before{opacity:1}
.card-icon{
  width:48px;height:48px;border-radius:10px;background:linear-gradient(135deg,rgba(0,212,255,0.15),rgba(79,140,255,0.1));
  display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px;
}
.card h3{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--text)}
.card p{font-size:13px;color:var(--text2);line-height:1.7}

/* ===== Solutions ===== */
.solution-card{padding:0;overflow:hidden}
.solution-img{
  height:160px;background:linear-gradient(135deg,var(--bg3),var(--bg2));
  display:flex;align-items:center;justify-content:center;font-size:48px;position:relative;
}
.solution-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(10,22,40,0.6))}
.solution-body{padding:24px}
.solution-body h3{font-size:18px;margin-bottom:8px}
.solution-body p{font-size:13px;color:var(--text2);margin-bottom:14px}
.solution-tags{display:flex;flex-wrap:wrap;gap:6px}
.solution-tags span{
  font-size:11px;padding:3px 10px;border-radius:20px;background:rgba(0,212,255,0.1);color:var(--cyan);
}

/* ===== Computing / GPU ===== */
.gpu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.gpu-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;
  text-align:center;transition:.3s;
}
.gpu-card:hover{border-color:var(--cyan);transform:translateY(-4px)}
.gpu-card .gpu-name{font-size:20px;font-weight:700;color:var(--cyan);margin-bottom:8px}
.gpu-card .gpu-mem{font-size:13px;color:var(--text2);margin-bottom:16px}
.gpu-card .gpu-specs{font-size:12px;color:var(--text3);line-height:1.8;text-align:left}
.gpu-card .gpu-price{margin-top:14px;font-size:14px;color:var(--blue);font-weight:600}
.gpu-table{width:100%;border-collapse:collapse;margin-bottom:40px;font-size:13px}
.gpu-table th{background:var(--bg3);color:var(--cyan);padding:12px;text-align:left;font-weight:600}
.gpu-table td{padding:12px;border-bottom:1px solid var(--border);color:var(--text2)}
.gpu-table tr:hover td{background:rgba(0,212,255,0.03)}

/* ===== Inquiry Form ===== */
.inquiry-box{
  background:linear-gradient(135deg,rgba(0,212,255,0.05),rgba(79,140,255,0.05));
  border:1px solid var(--border);border-radius:16px;padding:36px;max-width:800px;margin:0 auto;
}
.inquiry-box h3{font-size:22px;text-align:center;margin-bottom:8px}
.inquiry-box .sub{text-align:center;color:var(--text2);font-size:13px;margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:13px;color:var(--text2);font-weight:500}
.form-group select,.form-group input{
  padding:10px 14px;border-radius:6px;border:1px solid var(--border);
  background:rgba(10,22,40,0.6);color:var(--text);font-size:14px;outline:none;transition:.2s;
}
.form-group select:focus,.form-group input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,212,255,0.1)}
.form-group select option{background:var(--bg2);color:var(--text)}
.price-estimate{
  background:rgba(0,212,255,0.08);border:1px dashed var(--cyan);border-radius:8px;
  padding:16px;text-align:center;margin:20px 0;
}
.price-estimate .label{font-size:12px;color:var(--text3)}
.price-estimate .value{font-size:28px;font-weight:800;color:var(--cyan);margin:4px 0}
.price-estimate .note{font-size:11px;color:var(--text3)}
.form-submit{text-align:center;margin-top:20px}
.form-success{
  display:none;background:rgba(0,212,255,0.1);border:1px solid var(--cyan);
  border-radius:8px;padding:20px;text-align:center;margin-top:16px;
}
.form-success.show{display:block}
.form-success .check{font-size:32px;color:var(--cyan);margin-bottom:8px}

/* ===== Business Matrix ===== */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.matrix-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;
  transition:.3s;display:flex;flex-direction:column;
}
.matrix-card:hover{border-color:var(--cyan);transform:translateY(-4px)}
.matrix-card .m-icon{font-size:32px;margin-bottom:12px}
.matrix-card h3{font-size:16px;margin-bottom:8px}
.matrix-card p{font-size:13px;color:var(--text2);flex:1;margin-bottom:16px}
.matrix-card .m-link{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--cyan);font-weight:600;
}
.matrix-card .m-link:hover{gap:10px}
.matrix-note{text-align:center;color:var(--text3);font-size:12px;margin-top:24px}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-text h2{font-size:28px;margin-bottom:16px;color:var(--text)}
.about-text p{font-size:14px;color:var(--text2);line-height:1.8;margin-bottom:16px}
.about-advantages{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.adv-item{
  background:var(--card);border:1px solid var(--border);border-radius:8px;padding:14px;
}
.adv-item .adv-num{font-size:20px;font-weight:800;color:var(--cyan)}
.adv-item .adv-text{font-size:12px;color:var(--text2);margin-top:4px}
.about-visual{
  height:320px;border-radius:16px;background:linear-gradient(135deg,var(--bg3),var(--bg2));
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
  border:1px solid var(--border);
}
.about-visual::before{
  content:'';position:absolute;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,212,255,0.15),transparent);animation:pulse 3s infinite;
}
.about-visual .big-text{font-size:72px;font-weight:800;color:var(--cyan);opacity:0.3;position:relative;z-index:1}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h3{font-size:22px;margin-bottom:20px}
.contact-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}
.contact-item .ci-icon{
  width:40px;height:40px;border-radius:8px;background:rgba(0,212,255,0.1);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.contact-item .ci-text .label{font-size:12px;color:var(--text3)}
.contact-item .ci-text .value{font-size:15px;color:var(--text);margin-top:2px}
.contact-form{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px}
.contact-form h3{font-size:18px;margin-bottom:20px}

/* ===== Investor Page ===== */
.investor-hero{
  padding:140px 0 80px;text-align:center;position:relative;overflow:hidden;
}
.investor-hero h1{font-size:40px;font-weight:800;margin-bottom:16px}
.investor-hero h1 .grad{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.investor-hero p{font-size:16px;color:var(--text2);max-width:640px;margin:0 auto 40px}
.funding-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:800px;margin:0 auto}
.funding-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;text-align:center;
}
.funding-card .val{font-size:24px;font-weight:800;color:var(--cyan)}
.funding-card .lbl{font-size:12px;color:var(--text3);margin-top:6px}
.timeline{position:relative;max-width:700px;margin:0 auto;padding-left:30px}
.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:28px}
.timeline-item::before{
  content:'';position:absolute;left:-26px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 12px rgba(0,212,255,0.5);
}
.timeline-item .t-year{font-size:14px;font-weight:700;color:var(--cyan)}
.timeline-item .t-text{font-size:13px;color:var(--text2);margin-top:4px}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.team-card{text-align:center;padding:20px}
.team-avatar{
  width:64px;height:64px;border-radius:50%;background:var(--gradient);margin:0 auto 12px;
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;color:#0a1628;
}
.team-card h4{font-size:14px;margin-bottom:4px}
.team-card .role{font-size:11px;color:var(--cyan);margin-bottom:8px}
.team-card p{font-size:11px;color:var(--text3);line-height:1.6}
.chart-container{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:24px}
.chart-container h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.bar-chart{display:flex;align-items:flex-end;gap:24px;height:160px;padding:0 20px}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px}
.bar{width:100%;max-width:60px;background:var(--gradient);border-radius:4px 4px 0 0;transition:height 1s ease;position:relative}
.bar .bar-val{position:absolute;top:-22px;left:50%;transform:translateX(-50%);font-size:12px;font-weight:700;color:var(--cyan)}
.bar-label{font-size:12px;color:var(--text3)}
.pie-row{display:flex;align-items:center;gap:32px;flex-wrap:wrap;justify-content:center}
.pie-legend{display:flex;flex-direction:column;gap:10px}
.pie-legend-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text2)}
.pie-dot{width:12px;height:12px;border-radius:3px}

/* ===== Footer ===== */
.footer{
  background:#060e1c;padding:48px 0 24px;border-top:1px solid var(--border);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand p{font-size:13px;color:var(--text3);margin-top:12px;line-height:1.7}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px}
.footer-col a{display:block;font-size:13px;color:var(--text3);margin-bottom:8px;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;
  font-size:12px;color:var(--text3);flex-wrap:wrap;gap:12px;
}

/* ===== Animations ===== */
.fade-in{opacity:0;transform:translateY(30px);transition:all .7s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:968px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid var(--border)}
  .nav.open{display:flex}
  .mobile-toggle{display:flex}
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero h1{font-size:36px}
  .hero p{margin-left:auto;margin-right:auto}
  .hero-btns{justify-content:center}
  .hero-visual{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.gpu-grid,.matrix-grid{grid-template-columns:1fr}
  .grid-2,.about-grid,.contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .funding-cards{grid-template-columns:1fr}
  section{padding:60px 0}
  .section-title{font-size:26px}
}
@media(max-width:560px){
  .grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}