:root{
  --bg:#09090b;
  --bg-2:#070608;
  --panel:rgba(255,255,255,0.045);
  --panel-strong:rgba(255,255,255,0.07);
  --border:rgba(255,255,255,0.10);
  --text:rgba(255,255,255,0.92);
  --muted:rgba(255,255,255,0.68);
  --faint:rgba(255,255,255,0.50);
  --accent:#e11d2e;
  --accent-2:#ff3b4f;
  --leaf:#72b21d;
  --shadow:0 18px 50px rgba(225,29,46,0.14);
  --radius:18px;
  --radius-sm:14px;
  --max:1160px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}

.skip-link{
  position:absolute;
  left:-9999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:16px;
  top:16px;
  width:auto;
  height:auto;
  padding:10px 12px;
  border-radius:999px;
  background:rgba(255,255,255,0.10);
  outline:2px solid rgba(255,255,255,0.35);
  z-index:9999;
}

.container{
  width:100%;
  max-width:var(--max);
  padding:0 20px;
  margin:0 auto;
}

.header{
  position:sticky;
  top:0;
  z-index:50;
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,rgba(7,6,8,0.86),rgba(7,6,8,0.62));
  backdrop-filter:blur(12px);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:14px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  border-radius:999px;
  padding:6px 10px 6px 6px;
}
.brand:focus-visible,.nav a:focus-visible,.btn:focus-visible,.icon-btn:focus-visible,input:focus-visible{
  outline:2px solid rgba(255,255,255,0.35);
  outline-offset:2px;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:999px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(255,255,255,0.04);
}
.brand-name{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.brand-name strong{
  font-size:13px;
  font-weight:700;
  line-height:1.1;
}
.brand-name span{
  font-size:12px;
  color:var(--faint);
  line-height:1.2;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  max-width:260px;
}
.nav{
  display:flex;
  gap:8px;
  justify-content:center;
  flex:1;
}
.nav a{
  padding:10px 12px;
  border-radius:999px;
  font-size:14px;
  color:rgba(255,255,255,0.70);
  transition:background .18s ease,color .18s ease;
}
.nav a:hover{color:rgba(255,255,255,0.92);background:rgba(255,255,255,0.06)}
.nav a[aria-current="page"]{color:rgba(255,255,255,0.92);background:rgba(255,255,255,0.08)}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid transparent;
  font-weight:700;
  font-size:13px;
  cursor:pointer;
  transition:transform .18s ease,filter .18s ease,background .18s ease,border-color .18s ease;
  user-select:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:white;
  box-shadow:var(--shadow);
}
.btn-primary:hover{filter:brightness(.98);transform:translateY(-1px)}
.btn-ghost{
  background:var(--panel);
  border-color:rgba(255,255,255,0.14);
  color:rgba(255,255,255,0.92);
}
.btn-ghost:hover{background:var(--panel-strong)}
.icon-btn{
  display:none;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.06);
  width:44px;
  height:44px;
  border-radius:999px;
  cursor:pointer;
}
.icon-btn svg{width:18px;height:18px;stroke:rgba(255,255,255,0.86)}

.main{
  flex:1;
}

.hero{
  position:relative;
  border-bottom:1px solid var(--border);
  padding:64px 0 54px;
  background:
    radial-gradient(900px circle at 24% 16%, rgba(225,29,46,0.18), transparent 56%),
    radial-gradient(840px circle at 80% 62%, rgba(114,178,29,0.12), transparent 60%),
    linear-gradient(180deg, rgba(7,6,8,0.0), rgba(7,6,8,0.42));
}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr 0.92fr;
  gap:28px;
  align-items:center;
}
.kicker{
  font-size:12px;
  letter-spacing:.26em;
  text-transform:uppercase;
  font-weight:700;
  color:rgba(255,255,255,0.62);
}
h1{
  margin:12px 0 10px;
  font-size:44px;
  line-height:1.08;
  letter-spacing:-0.02em;
}
.lead{
  margin:0;
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
  max-width:44em;
}
.hero-ctas{
  margin-top:18px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-metrics{
  margin-top:18px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:10px;
}
.metric{
  border:1px solid var(--border);
  background:rgba(255,255,255,0.04);
  border-radius:16px;
  padding:12px 12px;
}
.metric strong{
  display:block;
  font-size:18px;
  letter-spacing:-0.02em;
}
.metric span{
  display:block;
  margin-top:2px;
  font-size:12px;
  color:var(--faint);
  line-height:1.5;
}

.hero-card{
  border:1px solid var(--border);
  background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.04));
  border-radius:var(--radius);
  padding:22px;
}
.hero-card h2{
  margin:0;
  font-size:18px;
  letter-spacing:-0.01em;
}
.hero-card p{
  margin:10px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.hero-card ul{
  margin:14px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.hero-card li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(9,9,11,0.55);
  border-radius:16px;
  padding:12px 12px;
}
.pill{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.04em;
  background:rgba(225,29,46,0.16);
  color:rgba(255,255,255,0.92);
  border:1px solid rgba(225,29,46,0.22);
  flex:0 0 auto;
}
.li-text{
  font-size:13px;
  color:rgba(255,255,255,0.76);
  line-height:1.6;
}
.about-qr-wrap{
  display:grid;
  grid-template-columns:96px 1fr;
  align-items:center;
  gap:12px;
  max-width:100%;
}
.about-qr-img{
  width:96px;
  height:96px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.12);
  background:#fff;
  object-fit:cover;
}
.about-qr-text{
  color:rgba(255,255,255,0.80);
  font-weight:700;
  line-height:1.5;
}

.section{
  padding:54px 0;
  border-bottom:1px solid var(--border);
}
.section h2{
  margin:0 0 10px;
  font-size:28px;
  line-height:1.2;
  letter-spacing:-0.02em;
}
.section p.section-lead{
  margin:0;
  color:var(--muted);
  line-height:1.9;
  font-size:15px;
  max-width:52em;
}

.grid-3{
  margin-top:18px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.grid-2{
  margin-top:18px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.card{
  border:1px solid var(--border);
  background:rgba(255,255,255,0.04);
  border-radius:var(--radius);
  padding:18px;
  transition:transform .18s ease,background .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.14)}
.card h3{
  margin:0;
  font-size:16px;
  letter-spacing:-0.01em;
}
.card p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:13.5px;
  line-height:1.85;
}
.price{
  margin-top:12px;
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  border-top:1px solid rgba(255,255,255,0.10);
  padding-top:12px;
}
.price strong{font-size:18px;letter-spacing:-0.02em}
.price span{font-size:12px;color:var(--faint)}

.two-col{
  margin-top:22px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.panel{
  border:1px solid var(--border);
  background:rgba(255,255,255,0.035);
  border-radius:var(--radius);
  padding:18px;
}
.panel h3{margin:0 0 10px;font-size:16px}
.list{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:rgba(255,255,255,0.76);
  line-height:1.7;
  font-size:13.5px;
}
.dot{
  width:8px;
  height:8px;
  margin-top:8px;
  border-radius:999px;
  background:rgba(255,255,255,0.36);
  flex:0 0 auto;
}

.cta-strip{
  border-top:1px solid var(--border);
  background:
    radial-gradient(900px circle at 28% 18%, rgba(225,29,46,0.16), transparent 56%),
    radial-gradient(820px circle at 82% 62%, rgba(114,178,29,0.10), transparent 60%);
}
.cta-inner{
  padding:34px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.cta-text strong{
  display:block;
  font-size:18px;
  letter-spacing:-0.01em;
}
.cta-text span{
  display:block;
  margin-top:4px;
  color:var(--muted);
  font-size:13.5px;
  line-height:1.7;
}

.footer{
  border-top:1px solid var(--border);
  background:var(--bg);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:20px;
  padding:40px 0 26px;
}
.footer h3{
  margin:0 0 10px;
  font-size:14px;
  color:rgba(255,255,255,0.92);
}
.footer p,.footer a{
  margin:0;
  font-size:13.5px;
  color:rgba(255,255,255,0.70);
  line-height:1.75;
}
.footer-nav{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-nav a{
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(255,255,255,0.04);
}
.footer-nav a:hover{background:rgba(255,255,255,0.06)}
.copyright{
  border-top:1px solid rgba(255,255,255,0.10);
  padding:14px 0 22px;
  font-size:12px;
  color:rgba(255,255,255,0.50);
}

.form{
  display:grid;
  gap:10px;
  margin-top:16px;
}
.field label{
  display:block;
  font-size:12px;
  font-weight:700;
  color:rgba(255,255,255,0.70);
  margin-bottom:6px;
}
.field input{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.04);
  color:rgba(255,255,255,0.92);
}
.field input::placeholder{color:rgba(255,255,255,0.45)}
.result{
  margin-top:16px;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(9,9,11,0.50);
  border-radius:var(--radius);
  padding:16px;
}
.result-head{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  align-items:baseline;
}
.score{
  font-family:"Geist Mono","SFMono-Regular",ui-monospace,Consolas,Menlo,monospace;
  font-size:28px;
  letter-spacing:-0.03em;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:999px;
  padding:6px 10px;
  font-size:12px;
  font-weight:700;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.05);
  color:rgba(255,255,255,0.86);
}
.issues{
  margin-top:12px;
  display:grid;
  gap:10px;
}
.issue{
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(255,255,255,0.04);
  border-radius:16px;
  padding:12px;
}
.issue-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
}
.issue-top strong{font-size:13px}
.tag{
  font-size:11px;
  font-weight:800;
  letter-spacing:.06em;
  border-radius:999px;
  padding:4px 9px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.05);
  color:rgba(255,255,255,0.80);
}
.tag-high{border-color:rgba(225,29,46,0.28);background:rgba(225,29,46,0.16)}
.tag-mid{border-color:rgba(255,255,255,0.16)}
.tag-low{border-color:rgba(114,178,29,0.26);background:rgba(114,178,29,0.12)}
.issue p{margin:8px 0 0;color:rgba(255,255,255,0.70);font-size:13px;line-height:1.75}

@media (max-width: 980px){
  h1{font-size:38px}
  .hero-grid{grid-template-columns:1fr;gap:18px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .nav{display:none}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center}
}

.mobile-nav{
  display:none;
  border-top:1px solid rgba(255,255,255,0.10);
  background:rgba(7,6,8,0.92);
}
.mobile-nav a{
  display:block;
  padding:14px 20px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.84);
}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a:hover{background:rgba(255,255,255,0.06)}
.mobile-nav[data-open="true"]{display:block}