/* ═══════════════════════════════════════
   RESET & VARIABLES
   ═══════════════════════════════════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy:        #0D1B3E;
  --navy-light:  #162348;
  --blue:        #004EA2;
  --blue-light:  #0066CC;
  --blue-pale:   #E8F0FB;
  --blue-border: rgba(0, 78, 162, 0.15);
  --bg-primary:  #FFFFFF;
  --bg-section:  #F5F7FA;
  --bg-card:     #FFFFFF;
  --text-primary: #0D1B3E;
  --text-second:  #4A5568;
  --text-muted:   #9AA5B4;
  --accent:      #FF6B00;
  --font-body:   'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius:      4px;
  --shadow-sm:   0 2px 8px rgba(13,27,62,0.06);
  --shadow-md:   0 4px 20px rgba(13,27,62,0.10);
  --shadow-lg:   0 8px 40px rgba(13,27,62,0.14);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ═══════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 3rem;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-bottom: 1px solid #E2E8F0;
  transition: box-shadow 0.3s;
}

.nav.scrolled {
  box-shadow: 0 2px 12px rgba(13,27,62,0.10);
}

.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 30px; width: auto; }

.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
  align-items: center;
  height: 100%;
}

.nav-link {
  display: flex;
  align-items: center;
  height: 70px;
  padding: 0 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-second);
  transition: color 0.2s, background 0.2s;
  position: relative;
  white-space: nowrap;
  letter-spacing: 0;
  text-transform: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--blue-light);
  transform: scaleX(0);
  transition: transform 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--blue);
  background: var(--blue-pale);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.has-dropdown > .nav-link::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 6px;
  transition: transform 0.2s;
  order: 1;         /* 텍스트(order:0) 뒤에 배치 */
  flex-shrink: 0;
}

.has-dropdown:hover > .nav-link::before {
  transform: rotate(-135deg) translateY(1px);
}

/* Dropdown */
.has-dropdown {
  position: relative;
  align-self: stretch;   /* li가 nav 전체 높이(70px)를 채움 */
  display: flex;
  align-items: center;
}

.dropdown {
  position: absolute;
  top: 100%;             /* li 바로 아래 */
  left: 0;
  min-width: 220px;
  background: #fff;
  border-top: 2px solid var(--blue);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  z-index: 200;
}

.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown::before {
  content: '';
  position: absolute;
  top: -12px; left: 0; right: 0;
  height: 12px;
}


.dropdown a {
  display: block;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #f0f2f5;
  transition: background 0.15s;
}

.dropdown a:last-child { border-bottom: none; }

.dropdown a:hover,
.dropdown a.active {
  background: var(--blue-pale);
}

.dropdown-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.dropdown a:hover .dropdown-label,
.dropdown a.active .dropdown-label {
  color: var(--blue);
}

.dropdown-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav-links > .nav-item > .dropdown a::after { display: none; }

.nav-cta {
  height: 38px;
  padding: 0 1.5rem;
  background: var(--blue);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  border-radius: var(--radius);
}

.nav-cta:hover { background: var(--blue-light); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--navy);
  transition: all 0.3s;
}

/* ═══════════════════════════════════════
   COMMON
   ═══════════════════════════════════════ */
section { padding: 80px 2rem; }

.container { max-width: 1200px; margin: 0 auto; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  color: var(--blue);
  margin-bottom: 1rem;
}

.section-label .line {
  width: 28px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  flex-shrink: 0;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--text-second);
  max-width: 560px;
}

/* ═══════════════════════════════════════
   PAGE HERO (sub-pages)
   ═══════════════════════════════════════ */
.page-hero {
  background: var(--navy);
  padding: 120px 2rem 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--blue-light), transparent);
}

.page-hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,78,162,0.3) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.page-hero .section-label {
  justify-content: center;
  color: rgba(255,255,255,0.6);
}

.page-hero .section-label .line {
  background: rgba(255,255,255,0.4);
}

.page-hero .section-title {
  color: #fff;
  font-size: clamp(2rem, 4vw, 3rem);
  position: relative;
}

.page-hero .section-desc {
  color: rgba(255,255,255,0.65);
  margin: 0 auto;
  position: relative;
}

/* ═══════════════════════════════════════
   HERO SECTION (index)
   ═══════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 130px 2rem 80px;
  background: var(--navy);
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,78,162,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,78,162,0.12) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,102,204,0.25) 0%, transparent 65%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.hero-icon {
  position: relative;
  width: 72px;
  height: 72px;
  margin-bottom: 2.5rem;
  background: rgba(0,78,162,0.3);
  border: 1px solid rgba(0,78,162,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.hero-icon svg {
  width: 36px;
  height: 36px;
}

.hero-icon::after { display: none; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  background: rgba(0,78,162,0.35);
  border: 1px solid rgba(0,78,162,0.5);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4FC3F7;
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 1.5rem;
  max-width: 860px;
  position: relative;
}

.hero h1 em {
  font-style: normal;
  color: #4FC3F7;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 400;
  line-height: 1.85;
  color: rgba(255,255,255,0.65);
  max-width: 520px;
  margin-bottom: 3rem;
  position: relative;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  position: relative;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.35);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero-scroll .line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--blue);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  border: 2px solid var(--blue);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  letter-spacing: 0;
  text-transform: none;
}

.btn-primary:hover {
  background: var(--blue-light);
  border-color: var(--blue-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,78,162,0.4);
}

.btn-primary::before { display: none; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: transparent;
  color: rgba(255,255,255,0.8);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0;
  text-transform: none;
}

.btn-secondary:hover {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
  background: rgba(255,255,255,0.08);
}

/* ═══════════════════════════════════════
   PROBLEM / STATS
   ═══════════════════════════════════════ */
.problem {
  background: var(--bg-section);
  position: relative;
}

.problem::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--blue-border), transparent);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.problem-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.stat-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.stat-card:hover {
  border-color: var(--blue-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.stat-unit { font-size: 1rem; font-weight: 600; }

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-second);
  line-height: 1.6;
}

/* Threat items */
.threat-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

.threat-item {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  border-left: 3px solid var(--blue);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.threat-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.threat-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.threat-item p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-second);
}

/* ═══════════════════════════════════════
   FEATURES
   ═══════════════════════════════════════ */
.features { position: relative; }

.features-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.features-header .section-desc { margin: 0 auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.feature-card {
  padding: 2rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.feature-card:hover {
  border-color: var(--blue-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card:hover::after { transform: scaleX(1); }
.feature-card::before { display: none; }

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-pale);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  color: var(--blue);
}

.feature-icon::after { display: none; }

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--text-second);
}

/* Feature detail */
.feature-detail {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.feature-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.feature-detail h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.75rem;
}

.feature-detail p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-second);
  margin-bottom: 1rem;
}

.feature-detail ul { list-style: none; padding: 0; }

.feature-detail ul li {
  font-size: 0.85rem;
  color: var(--text-second);
  padding: 0.5rem 0;
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.6;
}

.feature-detail ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.9rem;
  width: 6px; height: 6px;
  background: var(--blue);
  border-radius: 50%;
}

/* ═══════════════════════════════════════
   HOW IT WORKS / PROCESS
   ═══════════════════════════════════════ */
.how { background: var(--bg-section); }

.how::before, .how::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: #E2E8F0;
}

.how::before { top: 0; }
.how::after { bottom: 0; }

.how-header {
  text-align: center;
  margin-bottom: 4rem;
}

.how-header .section-desc { margin: 0 auto; }

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.how-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: repeating-linear-gradient(90deg,
    var(--blue-border) 0, var(--blue-border) 8px,
    transparent 8px, transparent 16px);
}

.step {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.step:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-border);
  transform: translateY(-3px);
}

.step-number {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  background: var(--blue);
  border-radius: 50%;
  position: relative;
  z-index: 1;
  border: none;
}

.step-number span {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-body);
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.step p {
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--text-second);
}

/* Process timeline */
.process-detail { padding: 5rem 2rem; }

.process-timeline {
  max-width: 800px;
  margin: 3rem auto 0;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 24px; top: 0; bottom: 0;
  width: 2px;
  background: var(--blue-pale);
}

.timeline-item {
  display: flex;
  gap: 2rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.timeline-dot {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue);
  border-radius: 50%;
  z-index: 1;
}

.timeline-dot span {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-body);
}

.timeline-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.timeline-content p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-second);
}

/* ═══════════════════════════════════════
   TRUST
   ═══════════════════════════════════════ */
.trust { text-align: center; }

.trust-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.trust-logo {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.5;
  transition: opacity 0.3s;
}

.trust-logo:hover { opacity: 1; }

.trust-divider {
  width: 60px;
  height: 2px;
  background: var(--blue);
  margin: 3rem auto;
  border-radius: 2px;
}

.trust-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.trust-feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.trust-feature svg { color: var(--blue); }

.trust-feature h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

.trust-feature p {
  font-size: 0.8rem;
  color: var(--text-second);
  line-height: 1.6;
}

/* Cert grid */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.cert-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.cert-card:hover {
  border-color: var(--blue-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.cert-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.6rem;
}

.cert-card p {
  font-size: 0.8rem;
  color: var(--text-second);
  line-height: 1.6;
}

/* ═══════════════════════════════════════
   CTA SECTION
   ═══════════════════════════════════════ */
.cta {
  background: var(--navy);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
}

.cta-inner {
  text-align: center;
  position: relative;
  padding: 2rem 0;
}

.cta-glow {
  position: absolute;
  width: 600px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,78,162,0.3) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.cta-inner .section-title {
  color: #fff;
  position: relative;
}

.cta-inner .section-desc {
  color: rgba(255,255,255,0.65);
  margin: 0 auto 2.5rem;
  position: relative;
}

.cta-inner .btn-primary {
  position: relative;
  font-size: 1rem;
  padding: 1rem 2.5rem;
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
.footer {
  background: #0A1628;
  padding: 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.footer-info {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.38);
  line-height: 1.8;
}

.footer-info strong {
  color: rgba(255,255,255,0.6);
  font-weight: 600;
}

.footer-bottom {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-copy {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.28);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.38);
  transition: color 0.2s;
}

.footer-links a:hover { color: rgba(255,255,255,0.75); }

.footer-admin-link {
  display: inline-flex;
  align-items: center;
  color: rgba(255,255,255,0.25);
  transition: color 0.2s;
}

.footer-admin-link:hover { color: rgba(255,255,255,0.6); }

/* ═══════════════════════════════════════
   BLOG GRID
   ═══════════════════════════════════════ */
.blog-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-tag {
  padding: 0.45rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-second);
  border: 1px solid #E2E8F0;
  border-radius: 100px;
  background: transparent;
  transition: all 0.2s;
  text-decoration: none;
}

.filter-tag:hover,
.filter-tag.active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-border);
}

.blog-thumb {
  aspect-ratio: 3/2;
  overflow: hidden;
  background: var(--bg-section);
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.blog-card:hover .blog-thumb img { transform: scale(1.05); }

.blog-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-section);
}

.blog-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-cat {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.blog-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.blog-summary {
  font-size: 0.83rem;
  line-height: 1.65;
  color: var(--text-second);
  flex: 1;
  margin-bottom: 1rem;
}

.blog-date {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.blog-empty {
  text-align: center;
  padding: 6rem 2rem;
  color: var(--text-muted);
}

.blog-empty p { margin-top: 1rem; font-size: 0.9rem; }

.blog-pagination {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 3rem;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-second);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s;
}

.page-btn:hover,
.page-btn.active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

/* Blog detail */
.blog-detail-thumb {
  margin-bottom: 2.5rem;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  overflow: hidden;
}

.blog-detail-thumb img { width: 100%; height: auto; display: block; }

.blog-content {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-second);
}

.blog-content h2, .blog-content h3 {
  color: var(--text-primary);
  margin: 2rem 0 1rem;
  font-weight: 700;
}

.blog-content h2 { font-size: 1.35rem; }
.blog-content h3 { font-size: 1.1rem; }
.blog-content p { margin-bottom: 1.25rem; }

.blog-content ul, .blog-content ol {
  margin: 1rem 0 1.25rem 1.5rem;
}

.blog-content li { margin-bottom: 0.5rem; }

.blog-content img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius);
}

.blog-content blockquote {
  border-left: 3px solid var(--blue);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: var(--blue-pale);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
}

.blog-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #E2E8F0;
}

.blog-nav-item {
  padding: 1.25rem;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.blog-nav-item:hover {
  border-color: var(--blue-border);
  box-shadow: var(--shadow-md);
}

.blog-nav-item.next { text-align: right; }

.blog-nav-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.35rem;
}

.blog-nav-title {
  display: block;
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.4;
}

/* ═══════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1),
              transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}

.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

.hero .reveal { transform: translateY(16px); }

/* ═══════════════════════════════════════
   MOBILE UTILITY CLASSES
   ═══════════════════════════════════════ */
.mobile-hide { display: block; }
.mobile-show { display: none; }
.footer-info-mobile { display: none; }

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-grid { grid-template-columns: 1fr; gap: 3rem; }
  .threat-detail-grid { grid-template-columns: 1fr; }
  .feature-detail-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  /* ── 모바일 유틸리티 ── */
  .mobile-hide { display: none !important; }
  .mobile-show { display: block !important; }

  /* ── 네비게이션 ── */
  .nav { padding: 0 1.25rem; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0; right: 0;
    background: #fff;
    padding: 0.5rem 0;
    gap: 0;
    border-top: 1px solid #E2E8F0;
    box-shadow: 0 8px 24px rgba(13,27,62,0.12);
  }
  .nav-links.open .nav-item { border-bottom: 1px solid #F0F4F8; }
  .nav-links.open .nav-item:last-child { border-bottom: none; }
  .nav-links.open .nav-link { display: flex; padding: 1rem 1.5rem; height: auto; color: var(--text-second); }
  .nav-links.open .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: var(--bg-section);
    border: none;
    border-top: none;
    padding: 0;
    min-width: auto;
    display: none;
    box-shadow: none;
  }
  .nav-links.open .has-dropdown.open .dropdown { display: block; }
  .nav-links.open .dropdown a {
    padding: 0.75rem 2rem;
    border-bottom: 1px solid #E2E8F0;
  }
  .nav-links.open .dropdown-label { color: var(--text-primary); }
  .nav-links.open .dropdown-desc { color: var(--text-muted); }
  .nav-cta { display: none; }

  /* ── 섹션 공통 ── */
  section { padding: 50px 1.25rem; }
  .section-title {
    font-size: clamp(1.35rem, 5.5vw, 1.75rem) !important;
    word-break: keep-all;
    overflow-wrap: break-word;
  }
  .section-desc {
    font-size: 0.875rem;
    word-break: keep-all;
    overflow-wrap: break-word;
  }

  /* ── 히어로 ── */
  .hero {
    padding: 90px 1.25rem 50px;
    text-align: center;
  }
  .hero-badge {
    font-size: 1.15rem !important;
    margin-bottom: 0.75rem !important;
  }
  .hero h1 {
    font-size: clamp(1.55rem, 6.5vw, 2rem) !important;
    word-break: keep-all;
    line-height: 1.4;
  }
  .hero-sub {
    font-size: 0.875rem;
    line-height: 1.7;
    word-break: keep-all;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 0.75rem;
  }
  .hero-scroll { display: none; }

  /* ── 버튼 ── */
  .btn-primary, .btn-secondary {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  /* ── 영업비밀이란 ── */
  .problem-grid { grid-template-columns: 1fr; gap: 2rem; }
  .problem-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.875rem;
  }
  .stat-card { padding: 1.25rem 1rem; }
  .stat-number { font-size: 1.6rem !important; }

  /* ── 핵심서비스 / 솔루션 ── */
  .features-grid { grid-template-columns: 1fr !important; }
  .features-header { text-align: center; }
  .features-header .section-desc { max-width: 100%; }

  /* ── 서비스 단계 ── */
  .how-steps { grid-template-columns: 1fr !important; gap: 1.25rem; }
  .how-steps::before { display: none; }
  .step { padding: 1.5rem 1.25rem; }
  .step p { word-break: keep-all; }

  /* ── 기타 그리드 ── */
  .trust-features { grid-template-columns: 1fr; gap: 1.25rem; }
  .trust-logos { gap: 1.5rem; flex-wrap: wrap; }
  .cert-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-nav { grid-template-columns: 1fr; }
  .threat-detail-grid { grid-template-columns: 1fr; }
  .feature-detail-grid { grid-template-columns: 1fr; }

  /* ── 페이지 히어로 ── */
  .page-hero { padding: 90px 1.25rem 40px; text-align: center; }
  .page-hero .section-title { font-size: clamp(1.4rem, 6vw, 2rem) !important; }
  .page-hero .section-desc { font-size: 0.875rem; word-break: keep-all; }

  /* ── 푸터 ── */
  .footer { padding: 1.5rem 1.25rem; gap: 0.75rem; }
  .footer-info { display: none !important; }
  .footer-info-mobile { display: block !important; }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
  }
  .footer-copy { font-size: 0.78rem; }
  .footer-links { gap: 0.875rem; flex-wrap: wrap; justify-content: center; }

  /* ── CTA 섹션 ── */
  .cta { padding: 60px 1.25rem; }
  .cta-inner .section-title { font-size: clamp(1.4rem, 6vw, 2rem) !important; }
  .cta-inner .section-desc { font-size: 0.875rem; word-break: keep-all; }
}