:root{
  --bg:#101417;
  --panel:#171D21;
  --panel-2:#1D252A;
  --line:#2A3338;
  --ink:#F2F4F2;
  --dim:#9AA7A5;
  --faint:#63706E;
  --amber:#F5A524;
  --amber-deep:#C9791B;
  --on-amber:#17120A;
  --paper:#F4F1EA;
  --paper-ink:#17201F;
  --paper-dim:#5C6B68;
  --paper-line:#D9D2C4;
  --safe:#35C08A;
  --danger:#E5484D;
  --radius:16px;
  --wrap:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}

.nav{
  position:sticky;top:0;z-index:20;
  background:rgba(16,20,23,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.nav-inner{height:72px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:baseline;gap:12px}
.brand-mark{font-size:28px;font-weight:800;letter-spacing:.04em;color:var(--amber);line-height:1}
.brand-sub{font-size:13px;color:var(--dim);letter-spacing:.14em}
.nav-links{display:flex;gap:30px;margin-left:auto;font-size:14px;color:var(--dim)}
.nav-links a{transition:color .18s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{flex-shrink:0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:10px;border:1px solid transparent;
  font-size:14px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:transform .18s,background .18s,border-color .18s,color .18s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--amber);color:var(--on-amber)}
.btn-primary:hover{background:#FFB638}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn-dark{background:var(--bg);color:var(--ink)}
.btn-dark:hover{background:#000}
.btn-lg{padding:15px 28px;font-size:15px;border-radius:12px}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--amber);
  text-transform:uppercase;margin-bottom:20px;
}
.eyebrow span{color:var(--faint);letter-spacing:.2em}
.dot{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block}

.hero{padding:96px 0 0;text-align:center;overflow:hidden}
.hero-inner{display:flex;flex-direction:column;align-items:center}
.hero h1{font-size:clamp(40px,6vw,72px);letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--amber)}
.lead{max-width:680px;margin:26px auto 0;font-size:17px;color:var(--dim);line-height:1.9}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap;justify-content:center}
.hero-meta{display:flex;gap:12px;margin-top:20px;font-size:13px;color:var(--faint)}
.hero-meta .sep{color:var(--line)}

.console-preview{
  width:100%;max-width:900px;margin:72px auto 0;
  background:var(--panel);border:1px solid var(--line);
  border-radius:20px 20px 0 0;padding:0 0 0;
  text-align:left;overflow:hidden;
}
.preview-top{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 26px;border-bottom:1px solid var(--line)}
.p-brand{font-size:19px;font-weight:800;color:var(--amber);letter-spacing:.04em}
.p-brand small{display:block;font-size:10px;font-weight:400;color:var(--faint);letter-spacing:.1em;margin-top:2px}
.p-chip{background:var(--panel-2);color:var(--dim);border-radius:999px;padding:6px 16px;font-size:11px;white-space:nowrap}
.p-readout{text-align:right;font-size:20px;font-weight:700;color:var(--amber)}
.p-readout small{display:block;font-size:10px;font-weight:400;color:var(--faint);margin-top:2px}
.preview-body{display:flex;gap:22px;padding:24px 26px;height:230px}
.p-left{width:34%;display:flex;flex-direction:column}
.p-label{font-size:12px;font-weight:700;letter-spacing:.12em}
.p-caption{font-size:10px;color:var(--faint);margin-top:4px}
.p-bars{flex:1;display:flex;align-items:flex-end;gap:4px;margin:14px 0 10px}
.p-bars span{flex:1;border-radius:4px 4px 2px 2px;background:var(--safe);opacity:.85;transform-origin:bottom;animation:barPulse 1.7s ease-in-out infinite alternate}
.p-bars span:nth-child(2n){animation-delay:.25s;background:var(--amber)}
.p-bars span:nth-child(3n){animation-delay:.5s}
.p-bars span:nth-child(5n){animation-delay:.75s;background:var(--danger)}
@keyframes barPulse{from{transform:scaleY(.72)}to{transform:scaleY(1)}}
.p-hint{font-size:10px;color:var(--dim)}
.p-pad{
  flex:1;border:2px solid var(--amber);border-radius:18px;background:var(--panel-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.p-pad-main{font-size:clamp(20px,2.6vw,30px);font-weight:700;color:var(--amber);letter-spacing:.1em}
.p-pad-sub{font-size:11px;color:var(--dim);margin-top:10px;letter-spacing:.04em}
.preview-bottom{height:74px;display:flex;align-items:center;gap:20px;padding:0 26px;border-top:1px solid var(--line)}
.p-gain-label{font-size:12px;font-weight:700;letter-spacing:.12em;flex-shrink:0}
.p-track{position:relative;flex:1;height:8px;border-radius:6px;background:var(--line)}
.p-fill{position:absolute;left:0;top:0;height:100%;width:14%;border-radius:6px;background:var(--amber)}
.p-thumb{position:absolute;left:14%;top:50%;width:22px;height:22px;border-radius:50%;background:var(--amber);transform:translate(-50%,-50%);box-shadow:inset 0 0 0 7px var(--panel)}
.p-emergency{flex-shrink:0;background:var(--danger);color:#fff;border-radius:10px;padding:10px 22px;font-size:12px;font-weight:700;letter-spacing:.24em}

.section{padding:112px 0}
.section h2{font-size:clamp(30px,4vw,44px);letter-spacing:-.01em}
.section-lead{max-width:640px;margin-top:20px;color:var(--dim);font-size:16px;line-height:1.9}
.grid{display:grid;gap:18px;margin-top:52px}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card-no{font-size:12px;color:var(--amber);letter-spacing:.16em;margin-bottom:22px}
.card h3{font-size:18px;margin-bottom:12px}
.card p{font-size:14px;color:var(--dim);line-height:1.85}
.card-safety{padding:32px}
.card-safety h3{font-size:19px}

.band-light{background:var(--paper);color:var(--paper-ink)}
.band-light .eyebrow{color:var(--amber-deep)}
.band-light .eyebrow span{color:var(--paper-dim)}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:72px;align-items:center}
.split-text p{margin-top:22px;color:var(--paper-dim);font-size:16px;line-height:1.9}
.check-list{margin-top:28px;display:flex;flex-direction:column;gap:14px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--paper-ink)}
.check-list li:before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;background:var(--amber-deep)}
.metric-panel{background:var(--bg);border-radius:20px;padding:36px;color:var(--ink)}
.metric{display:flex;align-items:baseline;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.metric:first-child{padding-top:0}
.metric strong{font-size:30px;color:var(--amber);min-width:120px}
.metric span{font-size:14px;color:var(--dim)}
.metric-note{font-size:13px;color:var(--faint);margin-top:24px;line-height:1.8}

.band-amber{background:var(--amber);color:var(--on-amber)}
.band-amber .eyebrow{color:var(--on-amber)}
.band-amber .eyebrow span{opacity:.6}
.band-amber h2{margin-bottom:40px}
.download-card{
  display:flex;align-items:center;gap:26px;
  background:var(--bg);color:var(--ink);
  border-radius:20px;padding:28px 32px;
}
.dl-icon{width:76px;height:76px;border-radius:16px;flex-shrink:0}
.dl-info{flex:1;min-width:0}
.dl-info h3{font-size:20px}
.dl-info p{font-size:13px;color:var(--dim);margin-top:6px}
.dl-sha{font-size:11px!important;color:var(--faint)!important;word-break:break-all}
.dl-sha code{font-family:ui-monospace,Consolas,monospace;color:var(--dim)}
.dl-note{font-size:13px;line-height:1.9;margin-top:22px;opacity:.85;max-width:760px}

.footer{border-top:1px solid var(--line);padding:64px 0 28px;background:#0C0F11}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand p{font-size:13px;color:var(--faint);margin-top:14px}
.footer-col h4{font-size:13px;letter-spacing:.1em;margin-bottom:16px;color:var(--ink)}
.footer-col a,.footer-col span{display:block;font-size:13px;color:var(--dim);line-height:2}
.footer-col a:hover{color:var(--amber)}
.footer-col span{color:var(--faint)}
.footer-bottom{display:flex;justify-content:space-between;margin-top:56px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--faint)}

@media(max-width:960px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:40px}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .wrap{padding:0 20px}
  .nav-inner{height:62px;gap:16px}
  .nav-links{display:none}
  .nav-cta{margin-left:auto}
  .hero{padding-top:64px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .console-preview{margin-top:52px}
  .preview-body{height:200px;gap:14px;padding:18px}
  .p-left{width:32%}
  .p-chip{display:none}
  .preview-bottom{gap:12px;padding:0 16px}
  .p-emergency{padding:8px 12px}
  .section{padding:72px 0}
  .grid-4{grid-template-columns:1fr}
  .download-card{flex-direction:column;align-items:flex-start;padding:24px}
  .download-card .btn{width:100%}
  .footer-inner{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}