:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --coupang-red: #e61c24;
  --coupang-hover: #c41219;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Pretendard', 'Segoe UI', Roboto, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}
.header-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-logo span { color: var(--primary); }
.site-nav { display: flex; gap: 20px; font-size: 15px; font-weight: 600; }
.site-nav a { color: var(--text-muted); transition: color 0.2s; }
.site-nav a:hover, .site-nav a.active { color: var(--primary); }
.main-content { max-width: 1080px; margin: 30px auto; padding: 0 20px; }
.hero-banner {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: white;
  border-radius: var(--radius);
  padding: 36px 30px;
  margin-bottom: 35px;
  box-shadow: var(--shadow-md);
}
.hero-tag {
  display: inline-block;
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93c5fd;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}
.hero-title { font-size: 26px; font-weight: 800; line-height: 1.35; margin-bottom: 8px; }
.hero-desc { font-size: 15px; color: #cbd5e1; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.section-title { font-size: 22px; font-weight: 700; color: #0f172a; }
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}
.post-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.post-thumb-wrap { width: 100%; height: 200px; overflow: hidden; background: #e2e8f0; }
.post-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.post-card:hover .post-thumb { transform: scale(1.04); }
.post-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.post-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.post-card-title {
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.post-meta {
  font-size: 13px;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #f1f5f9;
  padding-top: 10px;
}
.post-detail-container {
  max-width: 780px;
  margin: 20px auto 60px;
  background: var(--bg-card);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.post-header { margin-bottom: 25px; border-bottom: 1px solid #f1f5f9; padding-bottom: 20px; }
.post-title { font-size: 26px; font-weight: 800; line-height: 1.35; color: #0f172a; margin: 10px 0 12px; }
.post-detail-meta { display: flex; gap: 16px; font-size: 14px; color: var(--text-muted); }
.post-content { font-size: 17px; line-height: 1.85; color: #334155; }
.post-content p { margin: 18px 0; }
.post-content h3 { font-size: 20px; color: #0f172a; margin: 30px 0 12px; border-left: 4px solid var(--primary); padding-left: 10px; }
.post-content img { max-width: 100%; height: auto; border-radius: 10px; margin: 20px 0; box-shadow: var(--shadow-sm); }
.coupang-hero-box {
  background: #fff8f8;
  border: 2px solid #fed7d7;
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
}
.coupang-hero-img { flex: 1; min-width: 180px; border-radius: 8px; overflow: hidden; }
.coupang-hero-img img { width: 100%; height: auto; display: block; margin: 0 !important; }
.coupang-hero-info { flex: 2; min-width: 240px; }
.coupang-badge { display: inline-block; background: var(--coupang-red); color: white; padding: 4px 10px; border-radius: 20px; font-size: 13px; font-weight: 700; }
.coupang-price { font-size: 22px; font-weight: 800; color: var(--coupang-red); margin: 6px 0 12px; }
.btn-coupang { display: inline-block; background: var(--coupang-red); color: #ffffff !important; font-weight: 700; font-size: 15px; padding: 12px 24px; border-radius: 8px; text-decoration: none; }
.btn-coupang-big {
  display: block;
  width: 100%;
  max-width: 460px;
  margin: 35px auto 20px;
  padding: 16px 0;
  text-align: center;
  background: linear-gradient(135deg, #e61c24, #ff5252);
  color: #ffffff !important;
  font-size: 18px;
  font-weight: 800;
  border-radius: 50px;
  box-shadow: 0 6px 18px rgba(230, 28, 36, 0.25);
}
.tenping-container { margin: 30px 0; text-align: center; background: #ffffff; padding: 15px; border-radius: var(--radius); border: 1px solid var(--border); }
.disclosure-box { margin-top: 35px; padding-top: 15px; border-top: 1px solid var(--border); text-align: center; font-size: 13px; color: #94a3b8; }
.back-link-wrap { margin-top: 30px; text-align: center; }
.back-link { display: inline-block; padding: 10px 20px; background: #f1f5f9; color: var(--text-main); border-radius: 8px; font-weight: 600; font-size: 14px; }
.site-footer { background: #ffffff; border-top: 1px solid var(--border); padding: 35px 20px; text-align: center; color: var(--text-muted); font-size: 14px; }
@media (max-width: 640px) {
  .hero-title { font-size: 20px; }
  .post-detail-container { padding: 18px; margin: 10px auto; }
  .post-title { font-size: 20px; }
}