:root{
  --bg:#FFFFFF;
  --surface:#F6F8FB;
  --primary:#0C1A2B;
  --primary-2:#162D4D;
  --accent:#2D6BFF;
  --accent-light:#EBF2FF;
  --text:#4A5870;
  --muted:#8593A6;
  --border:#DDE4ED;
  --max:1120px;
  --reading:820px;
  --radius:22px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Pretendard Variable",Pretendard,sans-serif;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.site-header{
  position:sticky;top:0;z-index:30;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(221,228,237,.85);
}
.header-inner{
  max-width:var(--max);height:72px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  font-size:25px;font-weight:800;letter-spacing:-.04em;color:var(--primary)
}
.nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:600;color:#36445A}
.nav a{transition:.2s ease}
.nav a:hover{color:var(--accent)}

.hero{
  position:relative;overflow:hidden;
  padding:110px 24px 96px;
  background:
    radial-gradient(circle at 15% 15%, rgba(45,107,255,.13), transparent 32%),
    radial-gradient(circle at 88% 20%, rgba(45,107,255,.08), transparent 27%),
    linear-gradient(180deg,#F8FBFF 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--border);
}
.hero-inner{max-width:900px;margin:0 auto;text-align:center}
.eyebrow{
  display:inline-block;margin-bottom:18px;color:var(--accent);
  font-size:12px;font-weight:800;letter-spacing:.14em
}
.hero h1{
  margin:0;color:var(--primary);font-size:clamp(42px,6vw,72px);
  line-height:1.12;letter-spacing:-.055em;font-weight:800
}
.hero p{
  max-width:700px;margin:26px auto 0;font-size:18px;color:#5B6980;line-height:1.75
}
.hero-actions{display:flex;justify-content:center;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 22px;border-radius:12px;font-weight:700;font-size:14px;
  transition:transform .2s ease,box-shadow .2s ease
}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 12px 30px rgba(45,107,255,.18)}
.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--border)}
.hero-meta{
  display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:38px
}
.hero-meta span{
  padding:7px 11px;border:1px solid var(--border);border-radius:999px;
  background:rgba(255,255,255,.75);font-size:12px;color:#62718A
}

.article-shell{
  max-width:var(--reading);
  margin:0 auto;
  padding:90px 24px 110px;
}
.article-shell > h1{display:none}
.article-shell > p:first-of-type{
  font-size:19px;color:#33435A;line-height:1.9
}
.article-shell p{margin:0 0 20px;font-size:16.5px;letter-spacing:-.015em}
.article-shell h2{
  scroll-margin-top:110px;
  margin:92px 0 28px;padding-top:14px;
  color:var(--primary);font-size:32px;line-height:1.35;letter-spacing:-.04em
}
.article-shell h2::before{
  content:"";display:block;width:34px;height:4px;border-radius:99px;
  background:var(--accent);margin-bottom:18px
}
.article-shell h3{
  margin:44px 0 18px;color:var(--primary);font-size:22px;letter-spacing:-.025em
}
.article-shell h4{
  margin:34px 0 14px;color:var(--primary);font-size:18px
}

.article-takeaways{
  margin:38px 0 70px;padding:28px 30px;
  background:var(--primary);color:#DCE7F7;border-radius:var(--radius)
}
.article-takeaways h4{color:#fff;margin-top:0}
.article-takeaways ul{margin-bottom:0}
.article-takeaways li::marker{color:#72A0FF}

.article-shell ul{
  padding-left:22px;margin:18px 0 28px
}
.article-shell li{margin:9px 0}

.article-list{
  list-style:none;padding:0!important;display:grid;gap:10px
}
.article-list li{
  position:relative;margin:0;padding:14px 16px 14px 46px;
  background:var(--surface);border:1px solid var(--border);border-radius:14px
}
.article-list li::before{
  content:"✓";position:absolute;left:17px;top:13px;
  width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-light);color:var(--accent);font-weight:800;font-size:12px
}

table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:22px 0 40px;border:1px solid var(--border);
  border-radius:16px;overflow:hidden;font-size:14px
}
th,td{padding:16px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
th{background:var(--primary);color:#fff;font-weight:700}
tr:last-child td{border-bottom:0}
td:first-child{font-weight:700;color:var(--primary);white-space:nowrap}

.visual-panel{
  margin:38px 0 56px;padding:30px;
  border-radius:var(--radius);border:1px solid #D7E3FF;
  background:linear-gradient(135deg,#F8FBFF,#EEF4FF);
  display:flex;align-items:center;gap:20px
}
.visual-icon{
  flex:0 0 58px;width:58px;height:58px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent);color:#fff;font-size:28px;font-weight:800
}
.visual-panel strong{display:block;color:var(--primary);font-size:18px;margin-bottom:3px}
.visual-panel span{font-size:14px;color:#63718A}

.faq-item{
  border-top:1px solid var(--border);padding:24px 0
}
.faq-item:last-child{border-bottom:1px solid var(--border)}
.faq-item h4{margin:0 0 9px;font-size:18px}
.faq-item .answer p{margin:0;color:#5F6E84}

.closing{
  margin:0 24px 48px;
  border-radius:30px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#DDE8F7
}
.closing > div{max-width:var(--reading);margin:0 auto;padding:74px 24px}
.closing h2{margin:0;color:#fff;font-size:clamp(32px,5vw,52px);line-height:1.25;letter-spacing:-.045em}
.closing p{max-width:650px;margin:22px 0 30px}
.closing .btn.primary{background:#fff;color:var(--primary);box-shadow:none}

.footer{background:#071321;color:#91A0B5}
.footer-inner{
  max-width:var(--max);margin:0 auto;padding:50px 24px;
  display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:start
}
.footer strong{font-size:22px;color:#fff}
.footer p{margin:0;max-width:520px;font-size:13px}
.footer span{font-size:12px}

@media (max-width:820px){
  .nav{display:none}
  .hero{padding:78px 20px 70px}
  .hero h1{font-size:44px}
  .hero p{font-size:16px}
  .article-shell{padding:64px 20px 84px}
  .article-shell h2{margin-top:70px;font-size:28px}
  table{display:block;overflow-x:auto}
  .footer-inner{grid-template-columns:1fr}
}
@media (max-width:520px){
  .header-inner{height:64px;padding:0 18px}
  .hero h1{font-size:38px}
  .hero-actions{flex-direction:column}
  .btn{width:100%}
  .article-shell p{font-size:16px}
  .article-takeaways,.visual-panel{padding:22px}
  .visual-panel{align-items:flex-start}
  .closing{margin:0 12px 24px;border-radius:22px}
  .closing > div{padding:54px 20px}
}

/* Content images */
.content-image {
  margin: 2rem auto;
  text-align: center;
  max-width: 680px;
}
.content-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}