@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap");

    /* =========================
       공통 - 문서 기본값
       ========================= */
    html { scroll-behavior: smooth; }

    body {
      font-family: 'Manrope', 'Segoe UI', 'Noto Sans KR', sans-serif;
      margin: 0;
      background: #fff;
      color: #333;
      line-height: 1.6;
    }
    /* =========================
       공통 - 헤더 및 내비게이션
       ========================= */

    header {
      background:#fff;
      padding:0 0;
      min-height: 100px;
      box-shadow:0 3px 5px rgba(0,0,0,0.2);
      position:sticky;
      top:0;
      z-index:100;
      transition: background-color 0.25s ease, box-shadow 0.25s ease;
    }

    .header-inner {
      position: relative;
      max-width: 1440px;
      min-height: 100px;
      margin: 0 auto;
      padding: 0 1.25rem;
      box-sizing: border-box;
    }

    .logo {
      position:absolute;
      left:1.25rem;
      top:55%;
      z-index: 120;
      transform:translateY(-50%);
    }

    .logo a {
      display: block;
      position: relative;
    }

    .logo img {
      height: clamp(60px, 7vw, 75px);
      display: block;
      transition: opacity 0.25s ease;
    }

    .logo-image-white {
      position: absolute;
      inset: 0 auto auto 0;
      opacity: 0;
    }

    .site-nav {
      position: relative;
      display: flex;
      min-height: 100px;
      gap: clamp(0.5rem, 1.2vw, 2rem);
      justify-content: center;
    }

    .header-demo-link {
      position: absolute;
      top: 50%;
      right: 1.25rem;
      z-index: 120;
      display: inline-flex;
      min-height: 50px;
      padding: 0 1rem;
      align-items: center;
      justify-content: center;
      border: 1px solid #d84333;
      border-radius: 4px;
      color: #d84333;
      font-size: 1.1rem;
      font-weight: 800;
      text-decoration: none;
      transform: translateY(-50%);
      transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
    }

    .header-demo-link:is(:hover, :focus-visible) {
      background: #d84333;
      border-color: #d84333;
      color: #fff;
    }

    .nav-item {
      position: relative;
    }

    .nav-primary {
      display: flex;
      min-height: 100px;
      min-width: 145px;
      align-items: center;
      justify-content: center;
    }

    .nav-link {
      display: flex;
      align-items: center;
      padding: clamp(0.9rem, 2vh, 1.2rem) clamp(1rem, 2vw, 2.5rem);
      color: #333;
      font-size: 1.5rem;
      font-weight: 800;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: #e74c3c;
    }

    .nav-link[aria-current="page"] {
      color: #d84333;
    }

    .nav-toggle {
      display: none;
      border: 0;
      background: transparent;
      color: #555;
      cursor: pointer;
      transition: color 0.2s ease;
    }

    .mobile-menu-button {
      display: none;
      width: 44px;
      height: 44px;
      padding: 10px;
      border: 0;
      background: transparent;
      cursor: pointer;
    }

    .mobile-menu-button span {
      display: block;
      height: 2px;
      margin: 5px 0;
      background: #333;
      transition: transform 0.2s, opacity 0.2s;
    }

    .mobile-menu-button[aria-expanded="true"] span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .mobile-menu-button[aria-expanded="true"] span:nth-child(2) {
      opacity: 0;
    }

    .mobile-menu-button[aria-expanded="true"] span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .nav-dropdown {
      position: absolute;
      top: 100%;
      left: 50%;
      z-index: 110;
      display: flex;
      min-width: 150px;
      padding: 0.5rem;
      flex-direction: column;
      border: 1px solid #ddd;
      border-radius: 8px;
      background: #fff;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
      opacity: 0;
      pointer-events: none;
      translate: -50% 0;
      transform: translateY(-6px);
      transition: opacity 0.2s, transform 0.2s;
      visibility: hidden;
    }

    .nav-dropdown a {
      display: block;
      width: 100%;
      box-sizing: border-box;
      padding: 0.7rem 0.8rem;
      color: #444;
      font-size: 1rem;
      font-weight: 600;
      text-align: center;
      text-decoration: none;
      white-space: nowrap;
    }

    .nav-dropdown a:hover,
    .nav-dropdown a:focus-visible {
      background: transparent;
      color: #d84333;
    }

    .nav-item:hover .nav-dropdown,
    .nav-item:focus-within .nav-dropdown,
    .nav-item.is-open .nav-dropdown {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
      visibility: visible;
    }

    @media (min-width: 1181px) {
      .site-nav::before {
        content: "";
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 105;
        width: 100vw;
        height: 0;
        border-top: 1px solid transparent;
        background: #fff;
        box-shadow: none;
        opacity: 0;
        pointer-events: none;
        translate: -50% 0;
        transition: height 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
      }

      header:hover .site-nav::before,
      header:focus-within .site-nav::before {
        height: 310px;
        border-top-color: #eee;
        box-shadow: 0 14px 24px rgba(0, 0, 0, 0.12);
        opacity: 1;
        pointer-events: auto;
      }

      header:hover .site-nav .nav-dropdown,
      header:focus-within .site-nav .nav-dropdown {
        top: 100%;
        z-index: 110;
        box-sizing: border-box;
        min-height: 310px;
        min-width: 190px;
        padding: 1.35rem 0.75rem;
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
        visibility: visible;
      }
    }

    @media (max-width: 1180px) {
      header,
      .header-inner {
        min-height: 74px;
      }

      .header-inner {
        display: flex;
        gap: 0.5rem;
        align-items: center;
        justify-content: flex-start;
      }

      .logo {
        position: static;
        transform: none;
      }

      .logo img {
        height: 58px;
      }

      .mobile-menu-button {
        display: block;
        order: 2;
      }

      .header-demo-link {
        position: relative;
        top: auto;
        right: auto;
        z-index: 121;
        order: 1;
        min-height: 40px;
        margin-left: auto;
        padding: 0 0.8rem;
        font-size: 0.9rem;
        transform: none;
        white-space: nowrap;
      }

      .site-nav {
        position: absolute;
        top: 74px;
        right: 0;
        left: 0;
        display: none;
        min-height: 0;
        gap: 0;
        padding: 0.4rem 1rem 1rem;
        flex-direction: column;
        border-top: 1px solid #eee;
        background: #fff;
        box-shadow: 0 12px 20px rgba(0, 0, 0, 0.12);
      }

      .site-nav.is-mobile-open {
        display: flex;
      }

      .nav-item {
        width: 100%;
        border-bottom: 1px solid #eee;
      }

      .nav-primary {
        width: 100%;
        min-height: 60px;
        justify-content: flex-start;
      }

      .nav-link {
        flex: 1;
        min-width: 0;
        padding: 1rem 0.5rem;
        font-size: 1rem;
      }

      .nav-toggle {
        display: grid;
        flex: 0 0 64px;
        width: 64px;
        height: 60px;
        padding: 0;
        place-items: center;
        font-size: 1.3rem;
        touch-action: manipulation;
      }

      .nav-toggle span {
        display: grid;
        width: 44px;
        height: 44px;
        place-items: center;
      }

      .nav-toggle:hover,
      .nav-toggle:active {
        background: #fdf0ef;
        color: #d84333;
      }

      .nav-item.has-current-page .nav-toggle,
      .nav-link[aria-current="page"] + .nav-toggle {
        display: grid;
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
      }

      .nav-toggle:focus-visible {
        outline: 2px solid #e74c3c;

        outline-offset: -2px;
      }

      .site-nav .nav-dropdown,
      .site-nav .nav-item:hover .nav-dropdown,
      .site-nav .nav-item:focus-within .nav-dropdown {
        position: static;
        display: none;
        min-width: 0;
        padding: 0.35rem 0.5rem 0.75rem;
        border: 0;
        border-radius: 0;
        background: #f7f7f7;
        box-shadow: none;
        opacity: 1;
        pointer-events: none;
        translate: none;
        transform: none;
        visibility: visible;
      }

      .site-nav .nav-item.is-open .nav-dropdown {
        display: flex;
        pointer-events: auto;
      }

      .nav-dropdown a {
        padding: 0.65rem 0.8rem;
        text-align: left;
      }
    }

    @media (max-width: 480px) {
      .header-inner { gap: 0.25rem; }
      .logo img { height: 48px; }

      .header-demo-link {
        min-height: 34px;
        padding: 0 0.45rem;
        font-size: 0.72rem;
      }
    }

    /* =========================
       공통 - 본문 레이아웃 및 페이지 상단
       ========================= */
    .total {
      background-color: #fff;
      margin: 0 auto;
      box-shadow:0 0px 10px rgba(0,0,0,0.3);
    }

    section {
      padding:5rem 1.5rem;
      text-align:center;
    }

    main {
      font-size: 1.1rem;
    }

    main input,
    main textarea,
    main button {
      font: inherit;
    }

    .section-anchor {
      scroll-margin-top: 105px;
    }

    .section-kicker {
      margin: 0 0 0.7rem;
      color: #d84333;
      font-size: 0.88rem;
      font-weight: 700;
    }

    .page-intro,
    .product-hero {
      --intro-position: center;
      min-height: 400px;
      box-sizing: border-box;
      display: grid;
      align-items: center;
      padding: 4.5rem 1.5rem;
      background-image: linear-gradient(rgba(14, 18, 23, 0.56), rgba(14, 18, 23, 0.56)), var(--intro-image);
      background-position: center, var(--intro-position);
      background-repeat: no-repeat;
      background-size: cover;
      color: #fff;
      text-align: left;
    }

    .page-intro h1,
    .product-hero h1 {
      margin: 0 0 0.8rem;
      font-size: 2.6rem;
    }

    .page-intro p:last-child {
      margin: 0;
      color: #e1e3e5;
    }

    .content-section {
      padding: 6rem 1.5rem;
    }

    .muted-section {
      background: #f6f7f8;
    }

    .narrow-container {
      max-width: 850px;
    }

    .page-lead {
      color: #555;
      font-size: 1.15rem;
      line-height: 1.9;
    }

    .button-primary {
      display: inline-block;
      flex: 0 0 auto;
      padding: 0.85rem 1.4rem;
      border-radius: 6px;
      background: #e74c3c;
      color: #fff;
      font-weight: 700;
      text-decoration: none;
      transition: background 0.2s;
    }

    .button-primary:hover,
    .button-primary:focus-visible {
      background: #d84333;
    }

    /* =========================
       공통 - 콘텐츠 폭 및 타이포그래피
       ========================= */

    .container {
      max-width:1100px;
      margin:0 auto;
    }

    h2 {
      margin-bottom:1.4rem;
    }

    h3 {
      margin-top: 4rem;
      margin-bottom: 1rem;
      font-size: 1.35rem;
    }

    p {
      margin-bottom: 1.25rem;
    }

    /* =========================
       공통 - 페이지별 상단 배경 이미지
       ========================= */

    .page-intro .container,
    .product-hero .container {
      width: 100%;
      box-sizing: border-box;
    }

    .page-intro h1,
    .page-intro p,
    .product-hero h1,
    .product-hero p {
      text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
    }

    .page-intro .section-kicker,
    .page-intro p strong,
    .product-hero .section-kicker,
    .product-hero p strong {
      color: #fff;
    }

    .intro-history-clients {
      --intro-image: url("/img/intro/Intro_HistoryClients.webp");
    }

    /* =========================
       반응형 - 콘텐츠 레이아웃
       ========================= */
    @media (max-width: 700px) {
      .page-intro,
      .product-hero {
        padding: 3.5rem 1rem;
      }

      .page-intro h1,
      .product-hero h1 {
        font-size: 2.2rem;
      }

      .content-section {
        padding: 4.5rem 1rem;
      }

    }

    /* =========================
       공통 - 푸터 및 상단 이동 버튼
       ========================= */
    footer {
      background:#333;
      color:#fff;
      text-align:center;
      padding:2rem 1rem;
    }

    .scroll-top-button {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 90;
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border: 1px solid #d8d8d8;
      border-radius: 12px;
      background: #fff;
      color: #333;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.16);
      cursor: pointer;
      font-size: 1.2rem;
      line-height: 1;

    }

    .scroll-top-button:hover {
      border-color: #e74c3c;
      color: #e74c3c;
    }

    .scroll-top-button:focus-visible {
      outline: 3px solid rgba(231, 76, 60, 0.35);
      outline-offset: 2px;
    }

    @media (max-width:900px){
      section {
        padding: 4rem 1rem;
      }

      .scroll-top-button {
        right: 16px;
        bottom: 16px;
      }
    }