/* ========================================
       에브리쉐어 네오 브루탈리즘 개선 버전
       - 쉐도우 위계, 3색 배경 체계, 도트 패턴
       - WCAG AA 접근성, focus-visible
       ======================================== */

    /* === 디자인 토큰 === */
    :root {
      --nb-cream: #F0FFF4;
      --nb-black: #191F28;
      --nb-orange: #0D9488;
      --nb-orange-hover: #0B7E74;
      --nb-lime: #99F6E4;
      --nb-lime-bg: #CCFBF1;
      --nb-lavender: #C4B5FD;
      --nb-yellow: #FDE68A;
      --nb-pink: #FECDD3;
      --nb-sky: #DDD6FE;
      --nb-peach: #FDE68A;
      --nb-text: #191F28;
      --nb-text-sub: #555;
      --nb-text-muted: #888;
      --nb-border: 1.5px solid #D1D5DB;
      --nb-border-thick: 2px solid #191F28;
      --nb-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
      --nb-shadow: 0 2px 8px rgba(0,0,0,0.1);
      --nb-shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
      --nb-shadow-xl: 8px 8px 0px #191F28;
      --nb-radius: 8px;
      --nb-radius-lg: 12px;
      --nb-nav-height: 64px;
      --nb-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      --nb-font: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    }

    /* === 리셋 & 기본 === */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: var(--nb-nav-height);
    }

    /* 모션 감소 선호 사용자 대응 */
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }

    body {
      font-family: var(--nb-font);
      color: var(--nb-text);
      background: var(--nb-cream);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

    /* 포커스 스타일: 오렌지 3px outline + 2px offset */
    :focus-visible {
      outline: 3px solid var(--nb-orange);
      outline-offset: 2px;
    }

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

    ul, ol { list-style: none; }

    img {
      max-width: 100%;
      display: block;
    }

    /* === 도트 패턴 장식 (재사용) === */
    .dot-pattern {
      background-image: radial-gradient(circle, #191F28 1px, transparent 1px);
      background-size: 24px 24px;
      opacity: 0.04;
      pointer-events: none;
    }

    /* 블랙 배경용 흰색 도트 패턴 */
    .dot-pattern-light {
      background-image: radial-gradient(circle, #fff 1px, transparent 1px);
      background-size: 24px 24px;
      opacity: 0.03;
      pointer-events: none;
    }

    /* === 공용 섹션 스타일 === */
    .section {
      padding: 80px 24px;
      position: relative;
    }

    .section-inner {
      max-width: 1080px;
      margin: 0 auto;
    }

    .section-header {
      margin-bottom: 48px;
      text-align: center;
    }

    .section-label {
      display: inline-block;
      font-size: 14px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--nb-orange);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: clamp(28px, 5vw, 40px);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.03em;
      color: var(--nb-text);
    }

    .section-desc {
      font-size: 16px;
      color: var(--nb-text-sub);
      margin-top: 12px;
      max-width: 500px;
      margin-left: auto;
      margin-right: auto;
    }

    /* === [1] 네비게이션 === */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: var(--nb-nav-height);
      background: var(--nb-cream);
      border-bottom: var(--nb-border);
      display: flex;
      align-items: center;
      padding: 0 24px;
      transition: box-shadow var(--nb-transition);
    }

    /* 스크롤 시 하드 쉐도우 추가 */
    .nav.scrolled {
      box-shadow: 0 4px 0 var(--nb-black);
    }

    .nav-inner {
      max-width: 1080px;
      margin: 0 auto;
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* ES 로고마크: 오렌지 배경, 2px 보더 + 쉐도우 */
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 18px;
      cursor: pointer;
      text-decoration: none;
    }

    .nav-logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: var(--nb-orange);
      color: #fff;
      font-weight: 900;
      font-size: 16px;
      border: var(--nb-border);
      border-radius: 6px;
      box-shadow: var(--nb-shadow-sm);
    }

    /* 네비 링크: 호버 시 오렌지 밑줄 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--nb-text);
      text-decoration: none;
      transition: color var(--nb-transition);
    }

    .nav-link:hover {
      color: var(--nb-orange);
      text-decoration: underline;
      text-decoration-color: var(--nb-orange);
      text-underline-offset: 4px;
      text-decoration-thickness: 2px;
    }

    /* 네비 CTA: 오렌지, 2px 보더, 2px 쉐도우 */
    .nav-cta {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow-sm);
      cursor: pointer;
      transition: all var(--nb-transition);
      text-decoration: none;
    }

    .nav-cta:hover {
      background: var(--nb-orange-hover);
      box-shadow: var(--nb-shadow);
      transform: translate(-1px, -1px);
    }

    /* 모바일 햄버거 버튼 */
    .nav-hamburger {
      display: none;
      width: 40px;
      height: 40px;
      background: transparent;
      border: none;
      cursor: pointer;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      padding: 8px;
    }

    .nav-hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--nb-black);
      border-radius: 1px;
      transition: all var(--nb-transition);
    }

    /* 햄버거 열린 상태 X 변환 */
    .nav-hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-hamburger.active span:nth-child(2) {
      opacity: 0;
    }
    .nav-hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    /* 모바일 슬라이드 메뉴 */
    .mobile-menu {
      display: none;
      position: fixed;
      top: var(--nb-nav-height);
      right: -100%;
      width: 280px;
      height: calc(100vh - var(--nb-nav-height));
      background: var(--nb-cream);
      border-left: var(--nb-border);
      box-shadow: -4px 0 0 var(--nb-black);
      padding: 32px 24px;
      transition: right 0.3s ease;
      z-index: 999;
      flex-direction: column;
      gap: 0;
    }

    .mobile-menu.open {
      right: 0;
    }

    .mobile-menu .mobile-link {
      display: block;
      padding: 16px 0;
      font-size: 18px;
      font-weight: 600;
      color: var(--nb-text);
      border-bottom: 1px solid #e5e5e5;
      text-decoration: none;
    }

    .mobile-menu .mobile-link:hover {
      color: var(--nb-orange);
    }

    .mobile-menu .mobile-cta {
      display: block;
      margin-top: 24px;
      padding: 14px 24px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow-sm);
      text-align: center;
      text-decoration: none;
    }

    /* 모바일 메뉴 오버레이 */
    .mobile-overlay {
      display: none;
      position: fixed;
      top: var(--nb-nav-height);
      left: 0;
      width: 100%;
      height: calc(100vh - var(--nb-nav-height));
      background: rgba(0,0,0,0.3);
      z-index: 998;
    }

    .mobile-overlay.open {
      display: block;
    }

    /* === [2] 히어로 — 크림 배경 === */
    .hero {
      padding-top: calc(var(--nb-nav-height) + 60px);
      padding-bottom: 80px;
      background: var(--nb-cream);
      position: relative;
      overflow: hidden;
    }

    .hero-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      gap: 48px;
    }

    .hero-content {
      flex: 1;
      min-width: 0;
    }

    /* 히어로 배지: 라임 배경, 2px 보더+쉐도우 */
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: var(--nb-lime);
      border: var(--nb-border);
      border-radius: 999px;
      box-shadow: var(--nb-shadow-sm);
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .hero-badge svg {
      flex-shrink: 0;
    }

    /* 헤드라인: clamp, weight 900 */
    .hero-title {
      font-size: clamp(42px, 7vw, 68px);
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -0.04em;
      color: var(--nb-text);
      margin-bottom: 20px;
    }

    /* 형광펜 효과: "월 6,900원" */
    .hero-highlight {
      background: linear-gradient(transparent 50%, var(--nb-yellow) 50%);
      -webkit-box-decoration-break: clone;
      box-decoration-break: clone;
      padding: 0 4px;
    }

    .hero-sub {
      font-size: 18px;
      line-height: 1.7;
      color: var(--nb-text-sub);
      max-width: 500px;
      margin-bottom: 32px;
    }

    /* 히어로 CTA: 3px 보더, 4px 쉐도우 (주요 CTA) */
    .hero-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 36px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 18px;
      font-weight: 800;
      border: var(--nb-border-thick);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow);
      cursor: pointer;
      transition: all var(--nb-transition);
      text-decoration: none;
    }

    .hero-cta:hover {
      background: var(--nb-orange-hover);
      box-shadow: var(--nb-shadow-hover);
      transform: translate(-2px, -2px);
    }

    .hero-cta:active {
      box-shadow: var(--nb-shadow-sm);
      transform: translate(1px, 1px);
    }

    /* 신뢰 트러스트 3개 */
    .hero-trust {
      display: flex;
      gap: 24px;
      margin-top: 28px;
      flex-wrap: wrap;
    }

    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--nb-text-sub);
    }

    .hero-trust-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      background: var(--nb-lime);
      border: var(--nb-border);
      border-radius: 50%;
      font-size: 14px;
    }

    /* 우측 가격 스티커: 라임 배경, 3px 보더, 6px 쉐도우, rotate(3deg) */
    .hero-sticker {
      flex-shrink: 0;
      width: 260px;
      background: var(--nb-lime);
      border: var(--nb-border-thick);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow-hover);
      padding: 32px 24px;
      text-align: center;
      transform: rotate(3deg);
      position: relative;
    }

    .sticker-original {
      font-size: 18px;
      color: var(--nb-text-muted);
      text-decoration: line-through;
      margin-bottom: 4px;
    }

    .sticker-price {
      font-size: 48px;
      font-weight: 900;
      letter-spacing: -0.03em;
      color: var(--nb-text);
      line-height: 1.1;
    }

    .sticker-unit {
      font-size: 18px;
      font-weight: 600;
      color: var(--nb-text-sub);
      margin-top: 2px;
    }

    .sticker-save {
      display: inline-block;
      margin-top: 12px;
      padding: 4px 12px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      border: var(--nb-border);
      border-radius: 999px;
      box-shadow: var(--nb-shadow-sm);
    }

    /* === [3] 신뢰 지표 — 라임 배경 === */
    .stats-section {
      background: var(--nb-lime-bg);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    /* 카드: 흰 배경, 2px 보더, 4px 쉐도우 */
    .stat-card {
      background: #fff;
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow);
      padding: 28px 20px;
      text-align: center;
    }

    .stat-number {
      font-size: clamp(32px, 5vw, 42px);
      font-weight: 900;
      letter-spacing: -0.03em;
      color: var(--nb-text);
      line-height: 1.2;
    }

    .stat-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--nb-text-sub);
      margin-top: 8px;
    }

    /* === [4] 가격 비교 — 크림 배경 === */
    .pricing-section {
      background: var(--nb-cream);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      max-width: 800px;
      margin: 0 auto;
    }

    /* 정가 카드: 흰 배경, 2px 보더, 2px 쉐도우 (약한 강조) */
    .pricing-card {
      background: #fff;
      border: var(--nb-border);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow-sm);
      padding: 32px 24px;
      position: relative;
    }

    /* 에브리쉐어 카드: 라임 배경, 3px 보더, 4px 쉐도우 (강한 강조) */
    .pricing-card.featured {
      background: var(--nb-lime-bg);
      border: var(--nb-border-thick);
      box-shadow: var(--nb-shadow);
    }

    /* "추천" 뱃지: 오렌지, 2px 보더 */
    .pricing-badge {
      position: absolute;
      top: -14px;
      right: 20px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 14px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 13px;
      font-weight: 800;
      border: var(--nb-border);
      border-radius: 999px;
    }

    .pricing-plan {
      font-size: 15px;
      font-weight: 700;
      color: var(--nb-text-sub);
      margin-bottom: 8px;
    }

    .pricing-price {
      font-size: 36px;
      font-weight: 900;
      color: var(--nb-text);
      letter-spacing: -0.03em;
    }

    .pricing-price .unit {
      font-size: 16px;
      font-weight: 600;
      color: var(--nb-text-sub);
    }

    /* 쿠폰 절취선: dashed 가로선 */
    .pricing-dashed {
      border-top: 2px dashed var(--nb-black);
      margin: 20px 0;
    }

    .pricing-features {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .pricing-feature {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--nb-text);
    }

    .pricing-feature svg {
      flex-shrink: 0;
    }

    .pricing-feature.muted {
      color: var(--nb-text-muted);
      text-decoration: line-through;
    }

    /* 가격 CTA 버튼 */
    .pricing-btn {
      display: block;
      width: 100%;
      padding: 14px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--nb-radius);
      cursor: pointer;
      text-align: center;
      transition: all var(--nb-transition);
      margin-top: 20px;
      text-decoration: none;
    }

    /* 오렌지 CTA */
    .pricing-btn.primary {
      background: var(--nb-orange);
      color: #fff;
      border: var(--nb-border);
      box-shadow: var(--nb-shadow-sm);
    }

    .pricing-btn.primary:hover {
      background: var(--nb-orange-hover);
      box-shadow: var(--nb-shadow);
      transform: translate(-1px, -1px);
    }

    /* 아웃라인 버튼 */
    .pricing-btn.outline {
      background: transparent;
      color: var(--nb-text);
      border: var(--nb-border);
      box-shadow: none;
    }

    .pricing-btn.outline:hover {
      background: #f5f5f5;
      box-shadow: var(--nb-shadow-sm);
      transform: translate(-1px, -1px);
    }

    /* === [5] 안전성 — 크림 배경 === */
    .safety-section {
      background: var(--nb-cream);
      position: relative;
      overflow: hidden;
    }

    /* 도트 패턴 장식: 섹션 우측 하단 */
    .safety-dot-deco {
      position: absolute;
      right: 0;
      bottom: 0;
      width: 300px;
      height: 300px;
    }

    .safety-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      position: relative;
      z-index: 1;
    }

    /* 안전 카드: 각각 다른 파스텔 배경, 2px 보더, 4px 쉐도우 */
    .safety-card {
      border: var(--nb-border);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow);
      padding: 28px 24px;
    }

    .safety-card:nth-child(1) { background: var(--nb-sky); }
    .safety-card:nth-child(2) { background: var(--nb-lavender); }
    .safety-card:nth-child(3) { background: var(--nb-peach); }
    .safety-card:nth-child(4) { background: var(--nb-pink); }

    .safety-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      background: #fff;
      border: var(--nb-border);
      border-radius: 8px;
      font-size: 22px;
      margin-bottom: 16px;
    }

    .safety-card h3 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--nb-text);
    }

    .safety-card p {
      font-size: 14px;
      line-height: 1.6;
      color: var(--nb-text-sub);
    }

    /* === [6] 이용 방법 — 라임 배경 === */
    .steps-section {
      background: var(--nb-lime-bg);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: 1fr auto 1fr auto 1fr;
      gap: 0;
      align-items: start;
    }

    /* 스텝 카드: 흰 배경, 2px 보더, 2px 쉐도우 */
    .step-card {
      background: #fff;
      border: var(--nb-border);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow-sm);
      padding: 28px 20px;
      text-align: center;
    }

    /* 번호: 옐로 배경, 2px 보더 */
    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background: var(--nb-yellow);
      border: var(--nb-border);
      border-radius: 50%;
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--nb-text);
    }

    .step-card p {
      font-size: 14px;
      line-height: 1.6;
      color: var(--nb-text-sub);
    }

    /* 화살표 chevron */
    .step-arrow {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 12px;
      margin-top: 40px;
      color: var(--nb-text-muted);
      font-size: 24px;
    }

    /* === [7] 리뷰 — 크림 배경 === */
    .reviews-section {
      background: var(--nb-cream);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    /* 리뷰 카드: 흰 배경, 2px 보더, 4px 쉐도우, 기울임 0.5deg 이내 */
    .review-card {
      background: #fff;
      border: var(--nb-border);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow);
      padding: 24px;
    }

    .review-card:nth-child(1) { transform: rotate(-0.3deg); }
    .review-card:nth-child(2) { transform: rotate(0.4deg); }
    .review-card:nth-child(3) { transform: rotate(-0.5deg); }

    .review-stars {
      color: var(--nb-orange);
      font-size: 16px;
      letter-spacing: 2px;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 15px;
      line-height: 1.7;
      color: var(--nb-text);
      margin-bottom: 16px;
      font-weight: 500;
    }

    /* 2px dashed 구분선 */
    .review-divider {
      border-top: 2px dashed #ddd;
      margin-bottom: 12px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    /* 아바타: 라임 원형 */
    .review-avatar {
      width: 36px;
      height: 36px;
      background: var(--nb-lime);
      border: var(--nb-border);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
    }

    .review-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--nb-text);
    }

    .review-period {
      font-size: 12px;
      color: var(--nb-text-muted);
    }

    /* === [8] 친구 초대 — 크림 배경 === */
    .referral-section {
      background: var(--nb-cream);
    }

    /* 큰 카드: 흰 배경, 3px 보더, 6px 쉐도우 */
    .referral-card {
      background: #fff;
      border: var(--nb-border-thick);
      border-radius: var(--nb-radius-lg);
      box-shadow: var(--nb-shadow-hover);
      padding: 48px 40px;
      max-width: 800px;
      margin: 0 auto;
    }

    .referral-title {
      font-size: clamp(24px, 4vw, 32px);
      font-weight: 900;
      text-align: center;
      margin-bottom: 12px;
      letter-spacing: -0.03em;
    }

    .referral-desc {
      text-align: center;
      font-size: 16px;
      color: var(--nb-text-sub);
      margin-bottom: 36px;
    }

    /* 보상 3개 서브카드: 라임 배경, 2px 보더, 2px 쉐도우 */
    .referral-rewards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-bottom: 32px;
    }

    .referral-reward {
      background: var(--nb-lime-bg);
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow-sm);
      padding: 20px 16px;
      text-align: center;
    }

    .reward-emoji {
      font-size: 28px;
      margin-bottom: 8px;
    }

    .reward-title {
      font-size: 15px;
      font-weight: 800;
      color: var(--nb-text);
      margin-bottom: 4px;
    }

    .reward-desc {
      font-size: 13px;
      color: var(--nb-text-sub);
    }

    .referral-cta-wrap {
      text-align: center;
    }

    .referral-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 16px;
      font-weight: 800;
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow-sm);
      cursor: pointer;
      transition: all var(--nb-transition);
      text-decoration: none;
    }

    .referral-cta:hover {
      background: var(--nb-orange-hover);
      box-shadow: var(--nb-shadow);
      transform: translate(-1px, -1px);
    }

    /* === [9] FAQ — 크림 배경 === */
    .faq-section {
      background: var(--nb-cream);
    }

    .faq-list {
      max-width: 720px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    /* 아코디언: 흰 배경, 2px 보더, 2px 쉐도우 */
    .faq-item {
      background: #fff;
      border: var(--nb-border);
      border-radius: var(--nb-radius);
      box-shadow: var(--nb-shadow-sm);
      overflow: hidden;
      transition: all var(--nb-transition);
    }

    /* open 시: 옐로 배경, 4px 쉐도우, translate(-2px, -2px) */
    .faq-item.open {
      background: var(--nb-yellow);
      box-shadow: var(--nb-shadow);
      transform: translate(-2px, -2px);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 20px;
      background: transparent;
      border: none;
      cursor: pointer;
      font-family: var(--nb-font);
      font-size: 15px;
      font-weight: 700;
      color: var(--nb-text);
      text-align: left;
    }

    .faq-toggle {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--nb-black);
      color: #fff;
      border-radius: 50%;
      font-size: 18px;
      font-weight: 700;
      transition: transform var(--nb-transition);
    }

    .faq-item.open .faq-toggle {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }

    .faq-answer-inner {
      padding: 0 20px 18px;
      font-size: 14px;
      line-height: 1.7;
      color: var(--nb-text-sub);
    }

    .faq-item.open .faq-answer-inner {
      color: var(--nb-text);
    }

    /* === [10] 최종 CTA — 블랙 배경 === */
    .final-cta-section {
      background: var(--nb-black);
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    /* 도트 패턴 오버레이 (흰색 도트) */
    .final-dot-overlay {
      position: absolute;
      inset: 0;
    }

    .final-cta-inner {
      position: relative;
      z-index: 1;
    }

    .final-cta-title {
      font-size: clamp(28px, 5vw, 44px);
      font-weight: 900;
      color: #fff;
      letter-spacing: -0.03em;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .final-cta-sub {
      font-size: 16px;
      color: rgba(255,255,255,0.6);
      margin-bottom: 36px;
    }

    /* 대형 오렌지 CTA: 3px 보더, 흰색 쉐도우 4px */
    .final-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 18px 48px;
      background: var(--nb-orange);
      color: #fff;
      font-size: 20px;
      font-weight: 900;
      border: 3px solid #fff;
      border-radius: var(--nb-radius);
      box-shadow: 4px 4px 0px #fff;
      cursor: pointer;
      transition: all var(--nb-transition);
      text-decoration: none;
    }

    .final-cta-btn:hover {
      background: var(--nb-orange-hover);
      box-shadow: 6px 6px 0px #fff;
      transform: translate(-2px, -2px);
    }

    .final-cta-btn:active {
      box-shadow: 2px 2px 0px #fff;
      transform: translate(1px, 1px);
    }

    /* === [11] Footer — 다크 === */
    .footer {
      background: #111318;
      padding: 40px 24px;
      text-align: center;
    }

    .footer-inner {
      max-width: 1080px;
      margin: 0 auto;
    }

    .footer-brand {
      font-size: 16px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-info {
      font-size: 12px;
      line-height: 2;
      color: rgba(255,255,255,0.4);
    }

    .footer-info span {
      margin: 0 6px;
    }

    .footer-copy {
      font-size: 12px;
      color: rgba(255,255,255,0.3);
      margin-top: 16px;
    }

    /* === Reveal 애니메이션 === */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.5s ease, transform 0.5s ease;
    }

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

    /* === 반응형 === */

    /* 1024px 이하: 태블릿 */
    @media (max-width: 1024px) {
      .hero-inner {
        flex-direction: column;
        text-align: center;
        gap: 32px;
      }

      .hero-sub {
        max-width: 100%;
      }

      .hero-trust {
        justify-content: center;
      }

      .hero-sticker {
        transform: rotate(2deg);
        width: 220px;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .safety-grid {
        grid-template-columns: 1fr 1fr;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .step-arrow {
        transform: rotate(90deg);
        margin-top: 0;
        padding: 8px 0;
      }

      .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
      }

      .review-card:nth-child(1),
      .review-card:nth-child(2),
      .review-card:nth-child(3) {
        transform: rotate(0deg);
      }

      .referral-rewards {
        grid-template-columns: 1fr;
      }
    }

    /* 768px 이하: 모바일 */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .nav-hamburger {
        display: flex;
      }
      .mobile-menu {
        display: flex;
        flex-direction: column;
      }

      .section {
        padding: 60px 16px;
      }

      .hero {
        padding-top: calc(var(--nb-nav-height) + 40px);
        padding-bottom: 60px;
      }

      .hero-sticker {
        width: 200px;
      }

      .sticker-price {
        font-size: 36px;
      }

      .pricing-grid {
        grid-template-columns: 1fr;
      }

      .safety-grid {
        grid-template-columns: 1fr;
      }

      .referral-card {
        padding: 32px 20px;
      }

      .section-title {
        font-size: clamp(24px, 6vw, 32px);
      }
    }

    /* 480px 이하: 소형 모바일 */
    @media (max-width: 480px) {
      .hero-title {
        font-size: clamp(32px, 8vw, 42px);
      }

      .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 12px;
      }

      .hero-sticker {
        width: 180px;
      }

      .sticker-price {
        font-size: 32px;
      }

      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }

      .stat-card {
        padding: 20px 12px;
      }

      .stat-number {
        font-size: 28px;
      }

      .final-cta-btn {
        padding: 16px 32px;
        font-size: 17px;
      }
    }

    /* 360px 이하: 초소형 */
    @media (max-width: 360px) {
      .hero-title {
        font-size: 28px;
      }

      .hero-cta {
        padding: 14px 28px;
        font-size: 16px;
      }

      .hero-sticker {
        width: 160px;
        padding: 24px 16px;
      }

      .sticker-price {
        font-size: 28px;
      }
    }