:root{
  --ink:#101820;
  --ink-soft:#26323d;
  --paper:#f7f4ee;
  --surface:#ffffff;
  --line:#dfe3e7;
  --muted:#66727d;
  --blue:#1f5eff;
  --blue-deep:#123fbf;
  --coral:#f26a4f;
  --teal:#13857a;
  --gold:#d99a18;
  --dark:#0b1219;
  --radius:8px;
  --container:1160px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}

.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(16,24,32,.08);
}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:8px;display:grid;place-items:center;
  color:#fff;background:linear-gradient(145deg,var(--blue),var(--teal));
  font-weight:800;font-size:20px;
}
.brand strong{display:block;font-size:18px;letter-spacing:0}
.brand small{display:block;color:var(--muted);font-size:11px;line-height:1.2}
.nav{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--ink-soft);font-size:14px;font-weight:600}
.nav a:hover{color:var(--blue)}

.hero{
  min-height:calc(100vh - 76px);
  background-size:cover;background-position:center 28%;
  color:#fff;display:flex;align-items:center;
}
.hero-inner{padding:96px 0 72px;max-width:780px}
.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:var(--coral)}
.hero .eyebrow{color:#ffd5ca}
.hero h1{font-size:clamp(38px,6vw,74px);line-height:1.05;letter-spacing:-.02em;margin:16px 0 22px;max-width:760px}
.hero-copy{font-size:clamp(16px,2vw,20px);line-height:1.8;max-width:660px;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.button{
  min-height:48px;padding:0 22px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  text-decoration:none;font-weight:800;font-size:15px;border:1px solid transparent;
}
.button-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(31,94,255,.28)}
.button-primary:hover{background:var(--blue-deep)}
.button-ghost{border-color:rgba(255,255,255,.56);color:#fff;background:rgba(255,255,255,.08)}
.button-light{background:#fff;color:var(--ink)}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-badges span{border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.08);padding:6px 12px;border-radius:999px;font-size:12px;color:rgba(255,255,255,.9)}

.statement-band{background:var(--dark);color:#fff;padding:26px 0}
.statement-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12)}
.statement-grid>div{background:var(--dark);padding:20px 18px}
.statement-grid strong{display:block;font-size:16px}
.statement-grid span{display:block;color:rgba(255,255,255,.62);font-size:12px;margin-top:4px}

.section{padding:88px 0}
.section-heading{max-width:700px;margin-bottom:34px}
.section h2{font-size:clamp(28px,4vw,46px);line-height:1.15;letter-spacing:-.02em;margin:8px 0 14px}
.section-copy,.section-heading p:last-child{color:var(--muted);font-size:16px}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.feature-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-height:230px}
.feature-index{font-size:12px;font-weight:900;letter-spacing:.12em}
.feature-card h3{font-size:20px;margin:38px 0 10px}
.feature-card p{color:var(--muted);font-size:14px}
.feature-blue{border-top:4px solid var(--blue)}.feature-blue .feature-index{color:var(--blue)}
.feature-coral{border-top:4px solid var(--coral)}.feature-coral .feature-index{color:var(--coral)}
.feature-teal{border-top:4px solid var(--teal)}.feature-teal .feature-index{color:var(--teal)}
.feature-gold{border-top:4px solid var(--gold)}.feature-gold .feature-index{color:var(--gold)}

.section-dark{background:var(--dark);color:#fff}
.section-dark .eyebrow{color:#8ff0df}
.section-dark .section-copy{color:rgba(255,255,255,.7)}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.check-list{list-style:none;margin-top:24px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:28px;color:rgba(255,255,255,.82)}
.check-list li::before{content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(19,133,122,.18)}
.safety-visual{min-height:420px;border-radius:var(--radius);background-size:cover;background-position:center;display:flex;align-items:flex-end;padding:24px;border:1px solid rgba(255,255,255,.16)}
.safety-visual span{font-size:20px;font-weight:800}

.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.steps li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.steps li>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;font-weight:800;margin-bottom:18px}
.steps h3{font-size:17px;margin-bottom:8px}
.steps p{color:var(--muted);font-size:13px}

.section-community{padding-top:30px}
.community-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.community-copy p{color:var(--muted);font-size:16px;margin-bottom:18px}
.mode-list{display:grid;gap:10px}
.mode-list span{display:flex;gap:12px;align-items:baseline;border-bottom:1px solid var(--line);padding:10px 0;color:var(--muted)}
.mode-list strong{color:var(--ink);min-width:42px}
.community-visual{min-height:460px;border-radius:var(--radius);background-size:cover;background-position:center}

.cms-story{background:#fff}
.article-content{max-width:840px}
.article-content h1{font-size:42px;margin-bottom:12px}
.article-content h2{font-size:28px;margin:30px 0 12px}
.article-content p,.article-content li{color:var(--ink-soft)}
.article-content ul,.article-content ol{margin:12px 0 12px 22px}
.article-content table{margin:18px 0 0;box-shadow:none}
.article-content .hero{display:none}
.article-content .section{padding:0;margin:26px 0;background:transparent;border-radius:0}
.article-content .quote{font-size:18px;font-weight:700;color:var(--blue)}

.download-band{background:linear-gradient(110deg,#123fbf,#13857a);color:#fff;padding:64px 0}
.download-grid{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center}
.download-band h2{font-size:38px;margin:6px 0 10px}
.download-band p{color:rgba(255,255,255,.82);max-width:620px}
.download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.download-qrs{display:flex;gap:14px}
.download-qrs img{width:128px;height:128px;border-radius:8px;background:#fff;padding:8px}

.video-wrap iframe,.video-wrap video{width:100%;max-height:560px;border-radius:8px;background:#000}
.site-footer{background:var(--dark);color:#fff;padding:44px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr auto;gap:30px;align-items:start}
.footer-brand{font-size:24px;font-weight:900;margin-bottom:8px}
.footer-note,.footer-link{color:rgba(255,255,255,.62);text-decoration:none;font-size:14px;display:block;margin:5px 0}
.site-footer h3{font-size:14px;margin-bottom:10px}
.qr-row{display:flex;gap:12px}
.qr-item img{width:96px;height:96px;background:#fff;border-radius:8px;padding:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;gap:18px;flex-wrap:wrap;color:rgba(255,255,255,.48);font-size:12px}

@media(max-width:960px){
  .feature-grid,.steps,.statement-grid{grid-template-columns:repeat(2,1fr)}
  .safety-grid,.community-grid,.download-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .container{width:min(100% - 28px,var(--container))}
  .header-inner{height:auto;padding:12px 0;align-items:flex-start}
  .nav{gap:12px;justify-content:flex-end}
  .nav a{font-size:12px}
  .hero{min-height:78vh}
  .hero h1{font-size:38px}
  .feature-grid,.steps,.statement-grid{grid-template-columns:1fr}
  .section{padding:58px 0}
  .safety-visual{min-height:320px}
  .community-visual{min-height:320px}
  .footer-grid{grid-template-columns:1fr}
  .download-qrs img{width:104px;height:104px}
}