/* EHviewer download site - mobile first */
:root {
  --brand: #1a9b4a;
  --brand-dark: #117a38;
  --brand-soft: #e8f8ee;
  --ink: #122018;
  --muted: #5a6f63;
  --line: #d5e8db;
  --bg0: #f3faf5;
  --surface: #ffffff;
  --shadow: 0 12px 40px rgba(18, 80, 40, 0.12);
  --font-display: "Sora", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Sora", sans-serif;
  --float-h: 72px;
  --max: 1080px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #c9f0d6 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #b8e6c8 0%, transparent 50%),
    linear-gradient(180deg, var(--bg0), #f7fcf9 40%, #eef8f2);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--float-h) + 28px);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-dark);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--brand)}
.container{width:min(100% - 32px, var(--max));margin-inline:auto}
.site-header{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(14px);
  background:rgba(243,250,245,.82);
  border-bottom:1px solid rgba(213,232,219,.8);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-family:var(--font-display);font-weight:700;letter-spacing:-.02em}
.brand img{width:36px;height:36px;border-radius:10px}
.nav-links{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{text-decoration:none;color:var(--muted);font-size:13px;padding:6px 10px;border-radius:999px}
.nav-links a:hover,.nav-links a.is-active{color:var(--brand-dark);background:var(--brand-soft)}
.hero{
  position:relative;
  overflow:hidden;
  padding:32px 0 24px;
  min-height:min(88vh,820px);
  display:flex;
  align-items:center;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(900px 480px at 18% 20%, rgba(26,155,74,.16), transparent 60%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  align-items:center;
  gap:clamp(20px,4vw,48px);
  width:min(100% - 32px, var(--max));
}
.hero-copy{animation:rise .7s ease both;min-width:0}
.hero-visual{
  display:flex;
  justify-content:center;
  align-items:center;
  animation:rise .85s ease both;
  animation-delay:.06s;
}
.hero-visual img{
  width:min(100%,320px);
  height:auto;
  border-radius:28px;
  box-shadow:var(--shadow);
  animation:drift 12s ease-in-out infinite alternate;
}
@keyframes drift{from{transform:translateY(0)}to{transform:translateY(-10px)}}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.brand-mark{display:inline-flex;align-items:center;gap:12px;margin-bottom:18px}
.brand-mark img{width:56px;height:56px;border-radius:16px;box-shadow:var(--shadow)}
.brand-mark span{font-family:var(--font-display);font-size:clamp(2rem,8vw,3.4rem);font-weight:800;letter-spacing:-.04em;line-height:1}
.hero h1{margin:0 0 12px;font-family:var(--font-display);font-size:clamp(1.25rem,4.6vw,1.85rem);font-weight:600;letter-spacing:-.02em;line-height:1.35}
.hero .lead{margin:0 0 22px;color:var(--muted);font-size:15px;max-width:34em}
.cta-row{display:flex;flex-wrap:wrap;gap:10px}
.btn{appearance:none;border:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 18px;border-radius:14px;font-family:var(--font-body);font-size:15px;font-weight:600;text-decoration:none;transition:transform .18s ease, box-shadow .18s ease, background .18s ease}
.btn:active{transform:scale(.98)}
.btn-primary{background:linear-gradient(135deg,#22c55e,var(--brand-dark));color:#fff;box-shadow:0 10px 24px rgba(17,122,56,.28)}
.btn-primary:hover{color:#fff;filter:brightness(1.05)}
.btn-secondary{background:var(--surface);color:var(--brand-dark);border:1px solid var(--line)}
.btn-secondary:hover{color:var(--brand-dark);background:var(--brand-soft)}
.section{padding:42px 0}
.section h2{margin:0 0 8px;font-family:var(--font-display);font-size:clamp(1.35rem,4vw,1.8rem);letter-spacing:-.02em}
.section .sub{margin:0 0 22px;color:var(--muted);font-size:14px}
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.shots figure{margin:0;animation:rise .8s ease both}
.shots figure:nth-child(2){animation-delay:.08s}
.shots figure:nth-child(3){animation-delay:.16s}
.shots img{width:100%;border-radius:22px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.6);background:#fff}
.shots figcaption{margin-top:8px;font-size:13px;color:var(--muted);text-align:center}
.feature-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.feature-list li{padding:14px 16px;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:14px}
.feature-list strong{display:block;margin-bottom:4px;font-family:var(--font-display)}
.steps{counter-reset:step;display:grid;gap:12px;margin:0;padding:0;list-style:none}
.steps li{position:relative;padding:16px 16px 16px 58px;background:var(--surface);border-radius:14px;border:1px solid var(--line)}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;left:14px;top:16px;width:30px;height:30px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);display:grid;place-items:center;font-weight:700;font-family:var(--font-display)}
.faq details{background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600}
.related{display:flex;flex-wrap:wrap;gap:8px}
.related a{text-decoration:none;font-size:13px;padding:8px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--ink)}
.related a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.download-panel{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.download-panel .btn{width:100%;min-height:54px}
.note{margin-top:12px;font-size:13px;color:var(--muted)}
.disclaimer-box{margin:28px 0 0;padding:16px;border-radius:14px;background:#fff7ed;border:1px solid #fdba74;color:#9a3412;font-weight:600;text-align:center;font-size:14px;line-height:1.5}
.site-footer{padding:28px 0 20px;border-top:1px solid var(--line);background:rgba(255,255,255,.55)}
.footer-disclaimer{margin:0 0 12px;padding:14px 16px;border-radius:12px;background:#fff1f2;border:2px solid #fb7185;color:#9f1239;font-weight:700;text-align:center;font-size:clamp(13px,3.6vw,15px)}
.stats-line{text-align:center;font-size:14px;color:var(--muted);margin:0 0 10px}
.stats-line strong{color:var(--ink)}
.footer-meta{text-align:center;font-size:12px;color:var(--muted);margin:0}
.footer-meta a{color:inherit}
.float-dl{position:fixed;left:0;right:0;bottom:0;z-index:60;transform:translateY(110%);transition:transform .28s ease;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(18,32,24,.92);backdrop-filter:blur(12px);box-shadow:0 -8px 30px rgba(0,0,0,.18)}
.float-dl.is-show{transform:translateY(0)}
.float-dl-inner{width:min(100%,720px);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.float-dl .btn{min-height:46px;font-size:14px}
.float-dl .btn-ios{background:#fff;color:var(--ink)}
.page-hero{padding:28px 0 8px}
.page-hero h1{margin:0 0 10px;font-family:var(--font-display);font-size:clamp(1.4rem,5vw,2rem);letter-spacing:-.03em}
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:12px}
.breadcrumb a{color:inherit;text-decoration:none}
.breadcrumb a:hover{color:var(--brand-dark)}
.prose p{margin:0 0 12px;color:var(--muted)}
.prose ul{color:var(--muted);padding-left:1.2em}
.lead-muted{color:var(--muted);margin:0 0 18px}
@media (max-width:780px){
  .hero{min-height:auto;padding:18px 0 8px}
  .hero-grid{
    grid-template-columns:1fr;
    justify-items:center;
    text-align:center;
    gap:22px;
  }
  .hero-copy{display:flex;flex-direction:column;align-items:center}
  .brand-mark{justify-content:center}
  .cta-row{justify-content:center}
  .hero .lead{max-width:28em}
  .hero-visual{order:-1}
  .hero-visual img{width:min(72vw,260px);animation:none}
  .shots{grid-template-columns:1fr;max-width:280px;margin-inline:auto}
  .download-panel{grid-template-columns:1fr}
  .nav-links{display:none}
}