:root{
  --bg:#0c1016;
  --bg-soft:#121a24;
  --panel:#101824;
  --panel-2:#162033;
  --text:#e6e9f2;
  --muted:#b6bed4;
  --line:rgba(255,255,255,0.08);
  --accent:#ff8a3d;
  --accent-2:#4ad5ff;
  --warning:#ffd166;
  --good:#7cf07c;
  --shadow:0 18px 45px rgba(0,0,0,0.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
}
img{max-width:100%;display:block;border-radius:14px}
a{color:inherit;text-decoration:none}
.container{width:min(1200px,92%);margin:0 auto}

.top-progress{position:fixed;top:0;left:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0;z-index:1000}

header{
  position:sticky;top:0;z-index:900;
  background:rgba(11,13,18,0.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)
}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.nav-links{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.nav-links a{padding:6px 10px;border-radius:999px;transition:all .2s}
.nav-links a:hover{background:var(--panel);color:var(--text)}

.breadcrumb{font-size:13px;color:var(--muted);margin:12px 0 6px}
.breadcrumb span{color:var(--text)}

.hero{
  padding:72px 0 40px;
  display:grid;gap:28px;grid-template-columns:1.1fr .9fr;align-items:center
}
.hero h1{font-size:38px;line-height:1.2;margin-bottom:14px}
.hero p{color:var(--muted);margin-bottom:18px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  padding:12px 18px;border-radius:12px;border:1px solid transparent;
  background:var(--accent);color:#04120c;font-weight:600;transition:transform .2s, box-shadow .2s
}
.btn.secondary{background:transparent;border-color:var(--line);color:var(--text)}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}

.section{padding:54px 0;border-top:1px solid var(--line)}
.section h2{font-size:26px;margin-bottom:14px}
.section .lead{color:var(--muted);margin-bottom:22px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-1{display:grid;gap:12px}
.card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:16px;padding:18px;position:relative;overflow:hidden
}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted)}
.card:hover{transform:translateY(-4px);transition:transform .2s}

.tag{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;background:rgba(61,240,195,0.1);color:var(--accent);margin-bottom:10px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}

.badge-list{display:flex;flex-wrap:wrap;gap:8px}
.badge{padding:6px 10px;border-radius:999px;border:1px solid var(--line);font-size:12px;color:var(--muted)}

.timeline{display:grid;gap:12px}
.timeline-item{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--panel)}
.timeline-item header{position:static;background:transparent;border:0;padding:0}
.timeline-item h3{font-size:16px}
.timeline-body{color:var(--muted);margin-top:8px;display:none}
.timeline-item.open .timeline-body{display:block}

.faq-item{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--panel)}
.faq-item button{width:100%;text-align:left;background:transparent;border:0;color:var(--text);padding:14px 16px;font-size:16px;display:flex;justify-content:space-between;align-items:center}
.faq-item .answer{padding:0 16px 14px;color:var(--muted);display:none}
.faq-item.open .answer{display:block}

.tabs{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.tab-btn{padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.tab-btn.active{background:var(--accent);color:#03110b;border-color:transparent}
.tab-panel{display:none}
.tab-panel.active{display:block}

.checklist{display:grid;gap:10px}
.check-item{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);padding:10px 12px;border-radius:12px}
.check-item input{width:18px;height:18px}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,0.08);overflow:hidden}
.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0}

.notice{border-left:4px solid var(--warning);padding:12px 14px;background:rgba(255,179,71,0.08);border-radius:12px;color:var(--muted)}

.footer{padding:30px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.footer a{color:var(--muted)}
.footer .footer-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:8px}

.reveal{opacity:0;transform:translateY(18px);transition:all .6s}
.reveal.in-view{opacity:1;transform:translateY(0)}

.hero-media{position:relative}
.hero-media img{box-shadow:var(--shadow)}
.hero-media .floating{position:absolute;right:-8%;bottom:-8%;width:40%;border-radius:18px;border:1px solid var(--line)}

.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid var(--line);padding:10px;text-align:left}
.table th{background:rgba(255,255,255,0.05)}

.search{display:flex;gap:10px;align-items:center;margin-bottom:12px}
.search input{flex:1;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--panel);color:var(--text)}

.form{display:grid;gap:12px}
.form input,.form select,.form textarea{padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--panel);color:var(--text)}
.form textarea{min-height:120px}

@media (max-width:980px){
  .hero{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr}
  .grid-2,.split{grid-template-columns:1fr}
  header{position:sticky}
  .nav-links{gap:8px}
}

.img-tag{
  position:absolute;left:14px;top:14px;
  padding:6px 10px;border-radius:999px;
  background:rgba(0,0,0,0.55);
  color:#eafff7;font-size:12px;letter-spacing:.5px;
  border:1px solid rgba(61,240,195,0.35);
  text-transform:uppercase
}
.media-box{position:relative;overflow:hidden;border-radius:16px}
.media-box img{transition:transform .6s ease}
.media-box:hover img{transform:scale(1.05)}

.impact{
  padding:34px;border-radius:22px;
  background:linear-gradient(120deg,rgba(61,240,195,0.12),rgba(122,162,255,0.12));
  border:1px solid var(--line)
}
.impact h2{font-size:28px;margin-bottom:10px}
.impact p{color:var(--muted)}

.card{transition:transform .2s, box-shadow .2s}
.card:hover{box-shadow:0 20px 40px rgba(61,240,195,0.12)}

@keyframes floaty{0%{transform:translateY(0)}50%{transform:translateY(-8px)}100%{transform:translateY(0)}}
.floaty{animation:floaty 6s ease-in-out infinite}

.brand{display:flex;align-items:center;gap:10px}
.brand .logo{height:28px;width:auto}

.section--alt{background:rgba(255,255,255,0.02)}
.section--stripe{background:linear-gradient(90deg,rgba(61,240,195,0.08),rgba(122,162,255,0.08))}
.section--panel{background:rgba(21,26,43,0.85);border-radius:22px;padding:54px 24px}
.section--glow{box-shadow:0 30px 80px rgba(122,162,255,0.12) inset}

.section-title{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  border:1px solid rgba(61,240,195,0.4);
  background:rgba(61,240,195,0.08);
  font-size:12px;letter-spacing:1px;text-transform:uppercase;color:#bfffea
}

main .section:nth-of-type(even){
  background:linear-gradient(120deg,rgba(61,240,195,0.08),rgba(122,162,255,0.06));
  border-radius:22px;
  padding-left:24px;padding-right:24px;
}
main .section:nth-of-type(odd){
  background:rgba(255,255,255,0.015);
}

body::before{
  content:"";position:fixed;inset:-20% 0 0 0;z-index:-1;
  background:radial-gradient(800px 400px at 10% 10%,rgba(61,240,195,0.12),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(122,162,255,0.12),transparent 60%),
             radial-gradient(700px 500px at 50% 90%,rgba(255,179,71,0.06),transparent 60%);
}

.section{position:relative}
.section::before{
  content:"";display:block;height:3px;width:120px;margin-bottom:18px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:999px;opacity:.8
}
main .section:nth-of-type(even)::after{
  content:"";position:absolute;right:18px;top:18px;width:120px;height:120px;
  background:radial-gradient(circle at center,rgba(61,240,195,0.25),transparent 70%);
  pointer-events:none
}

main .section{
  margin:26px 0;
  border-radius:26px;
  overflow:hidden;
}
main .section:nth-of-type(4n+1){
  background:linear-gradient(120deg,rgba(255,138,61,0.10),rgba(74,213,255,0.06));
  border:1px solid rgba(255,138,61,0.25);
}
main .section:nth-of-type(4n+2){
  background:radial-gradient(circle at 10% 10%,rgba(74,213,255,0.12),transparent 55%),
             rgba(255,255,255,0.015);
  border:1px solid rgba(74,213,255,0.25);
}
main .section:nth-of-type(4n+3){
  background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(16,24,36,0.95));
  border:1px solid rgba(255,255,255,0.08);
}
main .section:nth-of-type(4n+4){
  background:linear-gradient(120deg,rgba(255,209,102,0.10),rgba(255,138,61,0.06));
  border:1px solid rgba(255,209,102,0.22);
}

.section::before{
  content:"";display:block;height:4px;width:140px;margin:18px 0 12px 0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:999px;opacity:.9
}

.card{
  background:linear-gradient(180deg,rgba(16,24,36,0.9),rgba(22,32,51,0.95));
  border:1px solid rgba(255,255,255,0.08);
}
.card:hover{box-shadow:0 20px 40px rgba(255,138,61,0.18)}

.btn{background:var(--accent);color:#20120a}
.btn.secondary{border-color:rgba(255,255,255,0.2)}

.section-title{
  background:rgba(255,138,61,0.12);
  border:1px solid rgba(255,138,61,0.35);
  color:#ffd9c1
}

body::before{
  background:radial-gradient(900px 450px at 10% 10%,rgba(255,138,61,0.12),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(74,213,255,0.12),transparent 60%),
             radial-gradient(700px 500px at 50% 90%,rgba(255,209,102,0.08),transparent 60%);
}