:root{
  --bg:#f3f7fb;
  --surface:#ffffff;
  --surface-2:#f8fbff;
  --ink:#0f172a;
  --text:#334155;
  --muted:#64748b;
  --line:#dbe7f3;
  --primary:#0f5bd8;
  --primary-2:#0b8fb2;
  --accent:#10b981;
  --warm:#f59e0b;
  --danger:#ef4444;
  --shadow:0 18px 46px rgba(15, 91, 216, .10);
  --shadow-soft:0 10px 28px rgba(15, 23, 42, .06);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --max:1180px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Pretendard","Noto Sans KR","Apple SD Gothic Neo",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 0% 0%, rgba(15,91,216,.08), transparent 24%),
    radial-gradient(circle at 100% 0%, rgba(16,185,129,.08), transparent 20%),
    linear-gradient(180deg,#f8fbff 0%, #f3f7fb 100%);
  line-height:1.7;
  word-break:keep-all;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(var(--max), calc(100% - 40px));margin:0 auto}
.section{padding:88px 0 0}
.section.compact{padding-top:34px}
.surface{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.pill{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:0 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
  letter-spacing:-.02em;
}
.pill-blue{background:#eaf2ff;color:var(--primary)}
.pill-green{background:#ebfbf5;color:#047857}
.pill-warm{background:#fff4dd;color:#b45309}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:36px;
  padding:0 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
  background:#ecf4ff;
  color:var(--primary);
  border:1px solid #d8e8ff;
}
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  backdrop-filter:blur(14px);
  background:rgba(248,251,255,.86);
  border-bottom:1px solid rgba(15,23,42,.06);
}
.header-inner{
  min-height:82px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand-wrap{display:flex;flex-direction:column;gap:5px}
.brand{
  font-size:24px;
  font-weight:900;
  letter-spacing:-.05em;
}
.brand-sub{
  font-size:12px;
  color:var(--muted);
}
.main-nav{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  justify-content:center;
  gap:18px;
}
.main-nav a{
  font-size:14px;
  color:var(--text);
  font-weight:700;
}
.main-nav a:hover{color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:10px}
.call-pill,
.btn-primary,
.btn-secondary,
.card-link,
.big-call,
.mobile-cta a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 20px;
  border-radius:999px;
  font-weight:900;
}
.call-pill,
.btn-primary,
.card-link,
.big-call,
.mobile-cta a{
  color:#fff;
  background:linear-gradient(135deg,var(--primary), #2f7df6);
  box-shadow:var(--shadow);
}
.btn-secondary{
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
}
.call-pill{font-size:14px;min-width:168px}
.hero{padding:34px 0 0}
.hero-shell{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(320px,.88fr);
  gap:22px;
}
.hero-main,
.hero-side,
.metric-card,
.flow-card,
.symptom-card,
.highlight-card,
.area-card,
.prep-card,
.detail-card,
.faq-wrap,
.cta-banner,
.article-hero,
.summary-card,
.step-card,
.note-box,
.related-card,
.sidebar-card,
.footer-box{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.hero-main{
  padding:42px;
  background:
    linear-gradient(135deg, rgba(15,91,216,.10), transparent 36%),
    linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}
.hero-main h1{
  margin:16px 0 14px;
  font-size:56px;
  line-height:1.03;
  letter-spacing:-.055em;
}
.hero-main p{
  margin:0;
  color:var(--text);
  font-size:17px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-tags,
.area-tags,
.meta-tags,
.related-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.hero-tags{margin-top:24px}
.hero-tags span,
.area-tags span,
.meta-tags span,
.related-tags span{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 14px;
  border-radius:14px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text);
  font-size:13px;
  font-weight:700;
}
.hero-side{
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:18px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f9fcff 100%);
}
.hero-side h2,
.article-hero h1{
  margin:0 0 10px;
}
.hero-side h2{
  font-size:28px;
  line-height:1.2;
}
.quick-diagnosis{
  display:grid;
  gap:12px;
}
.metric-card{
  padding:18px;
  border-radius:22px;
}
.metric-card strong{
  display:block;
  margin-bottom:6px;
  font-size:16px;
}
.metric-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}
.phone-box{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 18px 18px 20px;
  border-radius:22px;
  background:#0f172a;
  color:#fff;
}
.phone-box small{display:block;color:rgba(255,255,255,.7);margin-bottom:4px}
.phone-box strong{font-size:28px;letter-spacing:-.03em}
.phone-box a{
  color:#0f172a;
  background:#fff;
  border-radius:999px;
  min-height:42px;
  padding:0 16px;
  font-size:13px;
  font-weight:900;
  display:inline-flex;
  align-items:center;
}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:22px;
  margin-bottom:18px;
}
.section-head h2{
  margin:14px 0 8px;
  font-size:38px;
  line-height:1.15;
  letter-spacing:-.045em;
}
.section-head p{
  margin:0;
  color:var(--muted);
}
.section-note{
  max-width:300px;
  color:var(--muted);
  font-size:13px;
}
.grid-4,
.grid-3,
.symptom-grid,
.overview-grid,
.step-grid,
.related-grid,
.footer-grid{
  display:grid;
  gap:18px;
}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-3,
.overview-grid,
.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.symptom-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.flow-card,
.highlight-card,
.area-card,
.prep-card,
.summary-card,
.step-card,
.related-card,
.sidebar-card,
.footer-box{padding:24px}
.flow-number{
  width:44px;
  height:44px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:#edf4ff;
  color:var(--primary);
  font-weight:900;
  margin-bottom:14px;
}
.flow-card h3,
.symptom-card h3,
.highlight-card h3,
.area-card h3,
.prep-card h3,
.summary-card h3,
.step-card h3,
.related-card h3,
.sidebar-card h3,
.footer-box h3,
.footer-box h4{
  margin:0 0 10px;
  font-size:21px;
  line-height:1.3;
}
.flow-card p,
.symptom-card p,
.highlight-card p,
.area-card p,
.prep-card p,
.summary-card p,
.step-card p,
.related-card p,
.note-box p,
.sidebar-card p,
.footer-box p{
  margin:0;
  color:var(--text);
  font-size:15px;
}
.symptom-card{
  padding:24px;
  position:relative;
  overflow:hidden;
}
.symptom-card::after{
  content:"";
  position:absolute;
  right:-20px;
  bottom:-24px;
  width:110px;
  height:110px;
  border-radius:50%;
  background:linear-gradient(135deg, rgba(15,91,216,.10), rgba(16,185,129,.10));
}
.symptom-card .card-link{
  min-width:132px;
  min-height:42px;
  margin-top:16px;
  border-radius:14px;
  font-size:13px;
  position:relative;
  z-index:1;
}
.symptom-card > *{position:relative;z-index:1}
.highlight-card{
  background:linear-gradient(180deg,#fff 0%, #f9fcff 100%);
}
.highlight-card ul,
.prep-list,
.check-list,
.area-list,
.footer-box ul{
  margin:0;
  padding-left:18px;
  color:var(--text);
}
.highlight-card li + li,
.prep-list li + li,
.check-list li + li,
.area-list li + li,
.footer-box li + li{margin-top:8px}
.dual-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:18px;
}
.prep-card table{
  width:100%;
  border-collapse:collapse;
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
}
.prep-card th,
.prep-card td{
  padding:15px 16px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.prep-card tr:last-child th,
.prep-card tr:last-child td{border-bottom:none}
.prep-card th{
  width:28%;
  background:#f8fbff;
  color:var(--ink);
}
.area-card{
  background:
    linear-gradient(135deg, rgba(16,185,129,.08), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f9fffd 100%);
}
.faq-wrap{padding:28px}
.faq-list{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  font-weight:800;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item p{
  margin:0;
  padding:0 20px 18px;
  color:var(--text);
}
.cta-banner{
  margin-top:28px;
  padding:28px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  background:
    linear-gradient(135deg, rgba(15,91,216,.10), rgba(16,185,129,.10));
}
.cta-banner h2{
  margin:0 0 8px;
  font-size:32px;
  line-height:1.2;
  letter-spacing:-.04em;
}
.cta-banner p{margin:0;color:var(--text)}
.big-call{min-width:260px;font-size:20px}
.site-footer{
  padding:38px 0 96px;
}
.footer-grid{
  grid-template-columns:1.15fr .9fr .95fr;
}
.footer-box{
  background:#fff;
}
.footer-call{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 18px;
  border-radius:999px;
  background:#0f172a;
  color:#fff;
  font-weight:900;
  margin-top:14px;
}
.copy{
  margin-top:18px;
  color:var(--muted);
  font-size:12px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  color:var(--muted);
  font-size:13px;
  margin:18px 0 0;
}
.article-wrap{
  padding-top:20px;
}
.article-hero{
  padding:34px;
  background:
    linear-gradient(135deg, rgba(245,158,11,.10), transparent 28%),
    linear-gradient(180deg,#ffffff 0%, #fffaf1 100%);
}
.article-hero h1{
  font-size:46px;
  line-height:1.1;
  letter-spacing:-.05em;
}
.article-hero p{
  margin:0;
  font-size:17px;
  color:var(--text);
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:22px;
  margin-top:18px;
}
.detail-card{padding:28px}
.detail-section + .detail-section{
  margin-top:30px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.detail-section h2{
  margin:14px 0 10px;
  font-size:30px;
  line-height:1.2;
  letter-spacing:-.04em;
}
.note-box{
  padding:22px;
  margin-top:18px;
  background:#f8fbff;
}
.note-box strong{
  display:block;
  margin-bottom:8px;
  font-size:17px;
}
.side-stack{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.related-links{
  display:grid;
  gap:10px;
}
.related-links a{
  display:block;
  padding:14px 16px;
  border-radius:16px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text);
  font-weight:700;
}
.mobile-cta{
  position:fixed;
  left:14px;
  right:14px;
  bottom:12px;
  z-index:50;
  display:none;
}
.mobile-cta a{
  width:100%;
  min-height:56px;
  font-size:18px;
}
@media (max-width:1080px){
  .hero-shell,
  .dual-grid,
  .article-layout,
  .footer-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .symptom-grid,
  .grid-3,
  .overview-grid,
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .container{width:min(var(--max), calc(100% - 28px))}
  .header-inner{
    min-height:auto;
    padding:12px 0;
    flex-wrap:wrap;
    justify-content:center;
  }
  .main-nav{display:none}
  .hero-main,
  .hero-side,
  .flow-card,
  .symptom-card,
  .highlight-card,
  .area-card,
  .prep-card,
  .faq-wrap,
  .cta-banner,
  .article-hero,
  .detail-card,
  .summary-card,
  .step-card,
  .note-box,
  .related-card,
  .sidebar-card,
  .footer-box{
    padding:22px;
  }
  .hero-main h1{font-size:38px}
  .article-hero h1{font-size:34px}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:30px}
  .grid-4,
  .grid-3,
  .symptom-grid,
  .overview-grid,
  .step-grid,
  .related-grid{grid-template-columns:1fr}
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary,
  .call-pill,
  .big-call{width:100%}
  .phone-box{flex-direction:column;align-items:flex-start}
  .cta-banner{align-items:flex-start;flex-direction:column}
  .mobile-cta{display:block}
}