:root {
      --primary: #242f67;
      --primary-dark: #1b2451;
      --accent: #e44b5c;
      --bg: #f7f9fc;
      --surface: #ffffff;
      --text: #1f2937;
      --muted: #6b7280;
      --border: #e5e7eb;
      --soft: #edf2ff;
      --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 14px 34px rgba(15, 23, 42, 0.1);
      --radius: 18px;
      --maxw: 1180px;
    }

    * { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      color: var(--text);
      background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

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

    a { text-decoration: none; }

    .site-shell {
      width: min(100%, var(--maxw));
      margin-inline: auto;
      padding-inline: 16px;
    }

    .section {
      padding: 48px 0;
      content-visibility: auto;
      contain-intrinsic-size: 900px;
    }

    .section-title {
      margin: 0 0 12px;
      color: var(--primary);
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .section-lead {
      margin: 0 0 28px;
      max-width: 780px;
      color: var(--muted);
      line-height: 1.8;
    }

    .btn-main,
    .btn-alt {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      transition: 0.2s ease;
      border: 0;
    }

    .btn-main {
      color: #fff;
      background: linear-gradient(135deg, var(--accent), #d93c4d);
      box-shadow: 0 12px 28px rgba(228, 75, 92, 0.24);
    }

    .btn-main:hover { color: #fff; transform: translateY(-1px); }

    .btn-alt {
      color: var(--primary);
      background: #fff;
      border: 1px solid var(--border);
    }

    .btn-alt:hover {
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(36, 47, 103, 0.96);
      backdrop-filter: blur(8px);
      box-shadow: 0 6px 18px rgba(0,0,0,.08);
    }

    .site-header__inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
    }

    .brand img {
      width: 56px;
      height: 56px;
      object-fit: contain;
    }

    .brand__name {
      color: #fff;
      font-size: 1.05rem;
      line-height: 1.15;
      font-weight: 800;
    }

    .nav-toggle {
      display: none;
      border: 0;
      background: transparent;
      color: #fff;
      font-size: 1.6rem;
      padding: 4px 8px;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .site-nav a,
    .site-nav button {
      color: #fff;
      background: none;
      border: 0;
      font-weight: 500;
    }

    .nav-dropdown {
      position: relative;
    }

    .nav-dropdown-toggle::after {
      content: "▾";
      margin-left: 6px;
      font-size: 0.8em;
    }

    .nav-menu {
      position: absolute;
      top: calc(100% + 10px);
      left: 0;
      display: none;
      min-width: 220px;
      padding: 8px;
      border-radius: 12px;
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .nav-menu a {
      display: block;
      padding: 10px 12px;
      color: var(--primary);
      border-radius: 10px;
    }

    .nav-menu a:hover {
      background: var(--primary);
      color: #fff;
    }

    .nav-dropdown:hover .nav-menu,
    .nav-dropdown.open .nav-menu {
      display: block;
    }

    .lang-dropdown {
      position: relative;
    }

    .lang-btn {
      cursor: pointer;
      padding: 0;
    }


    .lang-menu {
      position: absolute;
      right: 0;
      top: calc(100% + 10px);
      display: none;
      list-style: none;
      margin: 0;
      padding: 8px;
      background: #fff;
      border-radius: 12px;
      box-shadow: var(--shadow-md);
    }

    .lang-menu.show { display: block; }
    .lang-menu li + li { margin-top: 8px; }

    /* Hero */
    .hero {
      padding: 44px 0 22px;
    }

    .hero-box {
      padding: 32px;
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      padding: 6px 12px;
      border-radius: 999px;
      background: var(--soft);
      color: var(--primary);
      font-size: .85rem;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .hero h1 {
      margin: 0 0 14px;
      color: var(--primary);
      font-size: clamp(2rem, 4vw, 3rem);
      line-height: 1.1;
      font-weight: 800;
    }

    .hero p {
      margin: 0 auto 10px;
      max-width: 780px;
      color: var(--muted);
      line-height: 1.8;
    }

    .hero-quote {
      margin-top: 10px;
      color: #8a8f99;
      font-style: italic;
    }

    /* Main grid */
    .content-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
      align-items: start;
    }

    .panel {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 20px;
      box-shadow: var(--shadow-sm);
      padding: 24px;
    }

    .panel h2,
    .panel h3 {
      margin-top: 0;
      color: var(--primary);
      font-weight: 800;
    }

    .panel p {
      color: var(--muted);
      line-height: 1.75;
    }

    .form-grid {
      display: grid;
      gap: 14px;
    }

    .field,
    .textarea,
    .select {
      width: 100%;
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 12px 14px;
      background: #fff;
      font-size: 0.98rem;
    }

    .textarea {
      min-height: 130px;
      resize: vertical;
    }

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

    .map-box {
      height: 420px;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border);
      background: #f1f5f9;
    }

    /* ASEAN map */
    .asean-map-wrap {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 22px;
      box-shadow: var(--shadow-sm);
      padding: 24px;
    }

    .asean-map {
      width: 100%;
      height: 460px;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border);
    }

    /* CSR */
    .csr-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 20px;
    }

    .csr-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .csr-list {
      margin: 0;
      padding-left: 18px;
      color: var(--muted);
      line-height: 1.8;
    }

    .csr-list li + li { margin-top: 8px; }

    .action-stack {
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .action-stack a {
      justify-content: center;
    }

    /* Footer */
    .site-footer {
      margin-top: 40px;
      color: #fff;
      background: linear-gradient(180deg, var(--primary), var(--primary-dark));
    }

    .site-footer__inner {
      padding: 42px 0 22px;
    }

    .site-footer p,
    .site-footer a {
      color: rgba(255,255,255,.92);
    }

    .socials {
      display: flex;
      gap: 12px;
      margin-top: 12px;
    }

    .socials a {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(255,255,255,.12);
      color: #fff;
    }

    .footer-bottom {
      padding: 14px 0;
      text-align: center;
      background: rgba(0,0,0,.18);
      font-size: .94rem;
    }

    .fab-top {
      position: fixed;
      right: 20px;
      bottom: 24px;
      width: 54px;
      height: 54px;
      border: 0;
      border-radius: 50%;
      display: none;
      align-items: center;
      justify-content: center;
      background: #fff;
      color: var(--primary);
      box-shadow: 0 12px 24px rgba(0,0,0,.18);
      z-index: 999;
    }

    @media (max-width: 991.98px) {
      .content-grid,
      .csr-grid {
        grid-template-columns: 1fr;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .site-header__inner {
        flex-wrap: wrap;
        padding: 12px 0;
      }

      .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding-bottom: 12px;
      }

      .site-nav.active {
        display: flex;
      }

      .nav-dropdown:hover .nav-menu {
        display: none;
      }

      .nav-dropdown.open .nav-menu {
        display: block;
        position: static;
        margin-top: 10px;
        width: 100%;
      }

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

    @media (max-width: 767.98px) {
      .brand img {
        width: 48px;
        height: 48px;
      }

      .brand__name {
        font-size: .96rem;
      }

      .hero-box,
      .panel,
      .csr-card,
      .asean-map-wrap {
        padding: 20px;
      }

      .map-box,
      .asean-map {
        height: 340px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
    }