* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Noto Sans KR', -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      overflow-x: hidden;
    }

    /* Header */
    .header {
      background: rgba(255, 255, 255, 0.98);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }

    .header-content {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 3px;
      text-decoration: none;
    }

    .logo .apostrophe {
      color: var(--accent);
      font-size: 32px;
    }

    .nav {
      display: flex;
      gap: 40px;
      align-items: center;
    }

    .nav-item {
      color: var(--text-light);
      text-decoration: none;
      font-size: 15px;
      font-weight: 500;
      transition: color 0.3s;
      text-align: center;
    }

    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }

    /* Mobile Menu */
    .mobile-menu-btn {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn span {
      width: 24px;
      height: 2px;
      background: var(--primary);
      transition: all 0.3s;
      border-radius: 2px;
    }

    .mobile-menu-btn.active span:nth-child(1) {
      transform: rotate(45deg) translate(7px, 7px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
      opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
      transform: rotate(-45deg) translate(7px, -7px);
    }

    .mobile-nav {
      display: none;
      position: fixed;
      top: 70px;
      left: 0;
      width: 100%;
      background: rgba(255, 255, 255, 0.98);
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      padding: 20px 0;
      z-index: 999;
    }

    .mobile-nav.active {
      display: block;
    }

    .mobile-nav a {
      display: block;
      padding: 15px 30px;
      color: var(--text-light);
      text-decoration: none;
      font-size: 16px;
      font-weight: 500;
      transition: all 0.3s;
    }

    .mobile-nav a:hover,
    .mobile-nav a.active {
      background: var(--bg-light);
      color: var(--primary);
    }

    /* Hero Section */
    .hero {
      background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
      padding: 150px 0 80px;
      text-align: center;
      margin-top: 70px;
    }

    .hero-title {
      font-size: 48px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 20px;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-light);
      margin-bottom: 40px;
    }

    .hero-buttons {
      display: flex;
      gap: 15px;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn-cta {
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent) 100%);
      color: white;
      padding: 15px 40px;
      border-radius: 50px;
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.3s, box-shadow 0.3s;
      border: none;
      cursor: pointer;
    }

    .btn-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(201, 162, 39, 0.3);
    }

    .btn-secondary {
      background: white;
      color: var(--primary);
      padding: 15px 40px;
      border-radius: 50px;
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.3s, box-shadow 0.3s;
      border: 2px solid var(--primary);
      cursor: pointer;
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(30, 58, 95, 0.2);
      background: var(--bg-light);
    }

    .btn-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-left: 5px;
    }

    .btn-icon svg {
      width: 20px;
      height: 20px;
      transition: transform 0.3s;
    }

    .btn-cta:hover .btn-icon svg {
      transform: translateX(3px);
    }

    /* Problem Section */
    .problem-section {
      background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
      padding: 100px 20px;
      position: relative;
      overflow: hidden;
    }

    .problem-content {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
      color: white;
    }

    .problem-title {
      font-size: 40px;
      font-weight: 700;
      margin-bottom: 60px;
      line-height: 1.4;
    }

    .chat-bubbles {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      margin-top: 50px;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .chat-bubble {
      background: white;
      color: var(--text);
      padding: 30px;
      border-radius: 20px;
      position: relative;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
      text-align: left;
      min-height: 150px;
      display: flex;
      align-items: center;
    }

    .chat-bubble p {
      font-size: 15px;
      line-height: 1.7;
    }

    /* Service Section */
    .service-section {
      padding: 100px 20px;
      background: white;
    }

    .service-section:nth-child(even) {
      background: var(--bg-light);
    }

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

    .service-label {
      color: var(--primary);
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 15px;
      text-align: center;
    }

    .service-title {
      font-size: 42px;
      font-weight: 700;
      color: var(--text);
      text-align: center;
      margin-bottom: 20px;
      line-height: 1.3;
    }

    .service-title span {
      color: var(--primary);
    }

    .service-desc {
      text-align: center;
      color: var(--text-light);
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 60px;
    }

    /* Flow Diagram */
    .flow-diagram {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 30px;
      margin: 60px 0;
      flex-wrap: wrap;
    }

    .flow-item {
      text-align: center;
      flex: 0 0 auto;
    }

    .flow-icon {
      width: 100px;
      height: 100px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      font-size: 40px;
    }

    .flow-icon.sender {
      background: linear-gradient(135deg, var(--bg-dark) 0%, #c7d2fe 100%);
    }

    .flow-icon.receiver {
      background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%);
    }

    .flow-label {
      font-weight: 600;
      color: var(--text);
      font-size: 18px;
      margin-bottom: 5px;
    }

    .flow-sublabel {
      font-size: 14px;
      color: var(--text-light);
    }

    .flow-arrow {
      flex: 0 0 auto;
      max-width: 300px;
      position: relative;
      text-align: center;
    }

    .arrow-line {
      width: 100%;
      height: 4px;
      background: var(--gradient-accent);
      border-radius: 2px;
      position: relative;
      margin: 30px 0;
    }

    .arrow-line::after {
      content: '';
      position: absolute;
      right: -15px;  /* 삼각형을 더 우측으로 이동 */
      top: 50%;
      transform: translateY(-50%);
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 10px 0 10px 18px;
      border-color: transparent transparent transparent var(--warning);
    }
    
    /* 화살표 선 위에 움직이는 효과 */
    .arrow-line::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      width: 30%;
      height: 100%;
      background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.5) 50%, 
        transparent 100%);
      animation: slideShine 2s linear infinite;
    }
    
    @keyframes slideShine {
      0% {
        left: -30%;
      }
      100% {
        left: 100%;
      }
    }
    .arrow-text {
      background: white;
      padding: 12px 20px;
      border-radius: 20px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      font-weight: 600;
      color: var(--warning);
      font-size: 14px;
      white-space: nowrap;
    }

    .arrow-subtext {
      color: var(--text-light);
      font-size: 13px;
      margin-top: 10px;
    }

    /* Benefits Section */
    .benefits-section {
      padding: 100px 20px;
      background: var(--bg-light);
    }

    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }

    .section-subtitle {
      color: var(--primary);
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 15px;
    }

    .benefits-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .benefit-card {
      background: white;
      padding: 50px 35px;
      border-radius: 20px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.08);
      text-align: center;
      transition: transform 0.3s, box-shadow 0.3s;
      position: relative;
    }

    .benefit-card::before {
      content: attr(data-number);
      position: absolute;
      top: 20px;
      left: 30px;
      font-size: 48px;
      font-weight: 700;
      color: var(--bg-dark);
    }

    .benefit-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 40px rgba(0,0,0,0.12);
    }

    .benefit-icon {
      font-size: 50px;
      margin-bottom: 20px;
    }

    .benefit-title {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 15px;
    }

    .benefit-desc {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* Reviews Section */
    .reviews-section {
      padding: 100px 20px;
      background: white;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .review-card {
      background: var(--bg-light);
      padding: 40px;
      border-radius: 20px;
      min-height: 300px;
      display: flex;
      flex-direction: column;
    }

    .review-number {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 15px;
    }

    .review-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 20px;
      line-height: 1.4;
    }

    .review-content {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.8;
    }
/* Responsive */
    @media (max-width: 1024px) {
      .header-content {
        padding: 15px 20px;
      }

      .hero {
        padding: 120px 20px 60px;
      }

      .hero-title {
        font-size: 40px;
      }

      .service-title {
        font-size: 36px;
      }

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

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: flex;
      }

      .nav {
        display: none;
      }

      .hero {
        padding: 100px 20px 50px;
      }

      .hero-title {
        font-size: 28px;
      }

      .hero-subtitle {
        font-size: 16px;
      }

      .problem-section {
        padding: 60px 20px;
      }

      .problem-title {
        font-size: 24px;
      }

      .service-title {
        font-size: 24px;
      }

      .service-desc {
        font-size: 14px;
      }

      .flow-diagram {
        flex-direction: column;
        gap: 30px;
      }

      .arrow-line::after {
        transform: translateY(-50%) rotate(90deg);
      }

      .chat-bubbles,
      .reviews-grid,
      .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
}

    @media (max-width: 480px) {
      .logo img {
        height: 32px;
      }

      .hero-title {
        font-size: 24px;
      }

      .hero-subtitle {
        font-size: 14px;
      }

      .problem-title {
        font-size: 20px;
      }

      .service-title {
        font-size: 20px;
      }
    }