:root {
      --bg: #f6fbf7;
      --surface: #ffffff;
      --surface-2: #eef8f1;
      --ink: #10201a;
      --muted: #5f7168;
      --line: #d8eadf;
      --green: #008c3a;
      --green-2: #00a64a;
      --green-3: #dff5e7;
      --green-soft: #dff5e7;
      --dark: #07130e;
      --shadow: 0 28px 80px rgba(0, 70, 32, 0.12);
      --radius-xl: 34px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --max: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at top left, rgba(0, 166, 74, .12), transparent 34rem),
        linear-gradient(180deg, #fbfffc 0%, var(--bg) 48%, #ffffff 100%);
      line-height: 1.6;
    }

    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    .container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

    .nav {
      position: sticky;
      top: 0;
      z-index: 40;
      border-bottom: 1px solid rgba(216, 234, 223, .82);
      background: rgba(246, 251, 247, .82);
      backdrop-filter: blur(18px);
    }

    .nav-inner {
      height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: -0.04em;
    }

    .brand-logo {
      width: 42px;
      height: 42px;
      object-fit: contain;
    }

    .brand-text strong { display: block; line-height: 1; font-size: 1.05rem; }
    .brand-text span { display: block; color: var(--muted); font-size: .74rem; letter-spacing: .01em; margin-top: 3px; }

    .nav-links {
      display: flex;
      gap: 24px;
      align-items: center;
      color: var(--muted);
      font-size: .94rem;
      font-weight: 700;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      line-height: 1;
    }

    .nav-links a:hover,
    .nav-links a.active { color: var(--green); }

    .nav-art {
      display: block;
      width: 80px;
      height: 80px;
      object-fit: contain;
      flex: 0 0 80px;
    }

    .nav-item {
      position: relative;
      display: inline-flex;
      align-items: center;
    }

    .submenu {
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%);
      display: none;
      min-width: 104px;
      padding: 8px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: var(--surface);
      box-shadow: 0 14px 32px rgba(0,0,0,.08);
      z-index: 60;
    }

    .nav-item:hover .submenu,
    .nav-item:focus-within .submenu {
      display: grid;
      gap: 4px;
    }

    .submenu a {
      padding: 8px 10px;
      border-radius: 10px;
      white-space: nowrap;
    }

    .submenu a:hover {
      background: var(--green-soft);
      text-decoration: none;
    }

    .menu-button {
      display: none;
      border: 1px solid var(--line);
      background: var(--surface);
      border-radius: 999px;
      padding: 9px 13px;
      font-weight: 800;
      color: var(--ink);
      cursor: pointer;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 92px 0 78px;
    }

    .hero::after {
      content: "";
      position: absolute;
      right: -13rem;
      top: -16rem;
      width: 42rem;
      height: 42rem;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(0, 166, 74, .16), transparent 68%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.04fr .96fr;
      gap: 56px;
      align-items: stretch;
      min-height: 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.78);
      color: var(--green);
      border-radius: 999px;
      padding: 8px 13px;
      font-weight: 900;
      font-size: .84rem;
      letter-spacing: .03em;
    }

    .dot {
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--green-2);
      box-shadow: 0 0 0 6px rgba(0,166,74,.12);
    }

    h1 {
      margin: 22px 0 18px;
      max-width: 820px;
      font-size: clamp(3.3rem, 7vw, 7rem);
      line-height: .89;
      letter-spacing: -.000em;
      color: var(--dark);
    }

    .highlight { color: var(--green); }

    .lead {
      max-width: 670px;
      margin: 0 0 30px;
      color: var(--muted);
      font-size: clamp(1.05rem, 1.55vw, 1.25rem);
    }

    .hero-kor {
      margin-top: 10px;
      color: var(--green);
      font-size: clamp(1.3rem, 2.6vw, 2rem);
      font-weight: 900;
      letter-spacing: -0.02em;
      text-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    }

    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

    .button {
      display: inline-flex;
      min-height: 50px;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      padding: 0 19px;
      font-weight: 900;
      border: 1px solid transparent;
      transition: transform .18s ease, box-shadow .18s ease;
    }

    .button:hover { transform: translateY(-2px); }
    .button.primary { background: var(--green); color: white; box-shadow: 0 18px 44px rgba(0, 140, 58, .24); }
    .button.secondary { background: white; border-color: var(--line); color: var(--dark); }

    .hero-visual {
      border-radius: var(--radius-xl);
      background: #008c3a;
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,255,255,.7);
      margin-top: 3.5rem;
      width: 100%;
      aspect-ratio: 4 / 3;
      min-height: 460px;
    }

    .hero-visual::before {
      content: "";
      position: absolute;
      inset: 0;
      background: none;
    }

    .molecule {
      display: none;
    }

    @keyframes drift {
      to {
        transform: translate3d(40px, 40px, 0);
      }
    }

    .hero-logo {
      position: absolute;
      inset: 0;
      display: grid;
      place-items: center;
      padding: 0; /*46px;*/
      transform: translateY(-60px);
    }

    .hero-logo img {
      width: min(300%, 980px);
      height: auto;
      filter: drop-shadow(0 24px 42px rgba(0,0,0,.08));
      -webkit-user-drag: none;
      user-select: none;
    }

    .status-card {
      position: absolute;
      left: 24px;
      right: 24px;
      bottom: 24px;
      border-radius: 24px;
      border: 1px solid rgba(255,255,255,.26);
      background: rgba(255,255,255,.13);
      backdrop-filter: blur(18px);
      color: white;
      padding: 20px;
    }

    .status-card strong { font-size: 1.05rem; }
    .status-card p { margin: 6px 0 0; color: rgba(255,255,255,.8); }

    section { padding: 78px 0; }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 26px;
      margin-bottom: 30px;
    }

    .kicker {
      color: var(--green);
      font-size: .76rem;
      font-weight: 950;
      text-transform: uppercase;
      letter-spacing: .14em;
    }

    h2 {
      margin: 8px 0 0;
      color: var(--dark);
      font-size: clamp(2.1rem, 3.5vw, 3.65rem);
      line-height: .98;
      letter-spacing: -.00em;
    }

    .section-head p { max-width: 520px; margin: 0; color: var(--muted); }

    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

    .card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 25px;
      box-shadow: 0 14px 42px rgba(16,32,26,.05);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: var(--green-3);
      color: var(--green);
      font-weight: 950;
      margin-bottom: 18px;
    }

    .card h3 { margin: 0 0 10px; color: var(--dark); font-size: 1.18rem; letter-spacing: -.03em; }
    .card p { margin: 0; color: var(--muted); }

    .feature {
      background: var(--dark);
      color: white;
      border-radius: var(--radius-xl);
      padding: 42px;
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 36px;
      align-items: center;
      overflow: hidden;
      position: relative;
    }

    .feature::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      border-radius: 999px;
      right: -160px;
      top: -160px;
      background: rgba(0,166,74,.22);
    }

    .feature h2, .feature p, .feature .mini-grid { position: relative; z-index: 1; }
    .feature h2 { color: white; margin: 0 0 14px; }
    .feature p { color: rgba(255,255,255,.72); margin: 0; }

    .mini-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .mini {
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 18px;
      padding: 18px;
    }
    .mini strong { display: block; font-size: 1.5rem; letter-spacing: -.05em; }
    .mini span { color: rgba(255,255,255,.68); font-size: .9rem; }

    .publication-list, .news-list { display: grid; gap: 14px; }

    .publication {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      gap: 18px;
      align-items: start;
      background: white;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 20px;
    }

    .year { color: var(--green); font-weight: 950; }
    .publication h3 { margin: 0 0 6px; font-size: 1.06rem; letter-spacing: -.02em; color: var(--dark); }
    .publication p { margin: 0; color: var(--muted); font-size: .95rem; }
    .tag { white-space: nowrap; padding: 7px 11px; border-radius: 999px; background: var(--green-3); color: var(--green); font-size: .78rem; font-weight: 900; }

    .people-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .person { padding: 0; overflow: hidden; }
    .avatar {
      aspect-ratio: 1 / 1;
      background:
        radial-gradient(circle at 50% 24%, rgba(0,140,58,.2) 0 18%, transparent 19%),
        linear-gradient(150deg, #f4fff7, #dff5e7);
      border-bottom: 1px solid var(--line);
    }
    .person-body { padding: 18px; }
    .person h3 { margin: 0; color: var(--dark); letter-spacing: -.03em; }
    .person p { margin: 5px 0 0; color: var(--muted); font-size: .92rem; }

    .news-item {
      display: grid;
      grid-template-columns: minmax(260px, 350px) 1fr;
      gap: 18px;
      align-items: center;
      background: white;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 20px;
    }
    .news-item .thumb {
      width: 100%;
      aspect-ratio: 16 / 9;
      height: auto;
      object-fit: cover;
      object-position: center;
      justify-self: center;
      align-self: center;
      border-radius: 12px;
      background: var(--surface-2);
      -webkit-user-drag: none;
      user-select: none;
    }
    .news-item .thumb-contain {
      object-fit: contain;
      padding: 16px;
    }
    .date { color: var(--green); font-weight: 950; }
    .news-item h3 { margin: 0 0 6px; color: var(--dark); }
    .news-item p { margin: 0; color: var(--muted); }

    .join {
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(0,140,58,.95), rgba(0,92,41,.96)),
        var(--green);
      color: white;
      padding: 44px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 24px;
      box-shadow: var(--shadow);
    }
    .join h2 { color: white; margin: 0 0 12px; }
    .join p {
      max-width: 920px;
      margin: 0;
      color: rgba(255,255,255,.78);
    }

    footer {
      border-top: 1px solid var(--line);
      padding: 42px 0;
      color: var(--muted);
    }
    .footer-inner { display: flex; justify-content: space-between; gap: 22px; flex-wrap: wrap; }

    .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    @media (max-width: 920px) {
      .hero-grid, .feature, .join { grid-template-columns: 1fr; }
      .grid-3, .people-grid { grid-template-columns: repeat(2, 1fr); }
      .nav-links {
        position: fixed;
        top: 74px;
        left: 20px;
        right: 20px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 18px;
        border-radius: 20px;
        border: 1px solid var(--line);
        background: white;
        box-shadow: var(--shadow);
      }
      .nav-links.open { display: flex; }
      .menu-button { display: inline-flex; }
    }

    @media (max-width: 640px) {
      .container { width: min(100% - 28px, var(--max)); }
      .hero { padding: 56px 0 52px; }
      .hero-visual { min-height: 380px; }
      .section-head { flex-direction: column; align-items: start; }
      .grid-3, .people-grid, .mini-grid, .publication, .news-item { grid-template-columns: 1fr; }
      .feature, .join { padding: 30px; }
      .brand-text span { display: none; }
    }

    .links {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 14px;
      border-radius: 999px;
      background: var(--green-soft);
      color: var(--green);
      font-weight: 800;
      font-size: .9rem;
    }

    .video-thumb {
      position: relative;
      display: block;
      overflow: hidden;
      width: 100%;
      aspect-ratio: 16 / 9;
      justify-self: center;
      align-self: center;
      border-radius: 12px;
      background: var(--surface-2);
    }

    .video-thumb .thumb {
      height: 100%;
      border-radius: 0;
    }

    .play-overlay {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 3rem;
      color: white;
      background: rgba(0,0,0,.22);
      transition: background .2s ease;
    }

    .video-thumb:hover .play-overlay {
      background: rgba(0,0,0,.35);
    }