/* roulang page: index */
:root {
      --bg-main: #1a1a1a;
      --bg-card: #252525;
      --bg-darker: #121212;
      --text-primary: #f0f0f0;
      --text-muted: #a0a0a0;
      --cyan: #00f2ff;
      --pink: #ff007a;
      --border-color: rgba(0, 242, 255, 0.25);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: var(--font-stack);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .site-header {
      background-color: #141414;
      border-bottom: 1px solid #333;
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .header-top {
      border-bottom: 1px solid #222;
      padding: 10px 0;
      font-size: 13px;
      color: var(--text-muted);
    }
    .header-top-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: 0.5px;
    }
    .brand-logo span {
      color: var(--cyan);
    }
    .header-contact {
      display: flex;
      gap: 20px;
    }
    .header-contact a:hover {
      color: var(--cyan);
    }
    .header-nav {
      padding: 12px 0;
    }
    .nav-list {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-list a {
      font-size: 15px;
      font-weight: 500;
      color: #ddd;
    }
    .nav-list a:hover, .nav-list a.active {
      color: var(--cyan);
    }
    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      color: var(--cyan);
      padding: 6px 10px;
      cursor: pointer;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border: 1px solid var(--cyan);
      border-radius: 4px;
      cursor: pointer;
      transition: all 0.2s ease;
      color: var(--cyan);
      background: transparent;
      gap: 8px;
    }
    .btn:hover {
      background: var(--cyan);
      color: #000;
      box-shadow: 0 0 15px rgba(0, 242, 255, 0.4);
    }
    .btn-solid {
      background: var(--cyan);
      color: #000;
    }
    .btn-solid:hover {
      background: #33f5ff;
      color: #000;
    }
    .section-pad {
      padding: 80px 0;
    }
    .section-alt {
      background-color: var(--bg-card);
    }
    .section-dark {
      background-color: var(--bg-darker);
    }
    .sec-head {
      margin-bottom: 45px;
    }
    .sec-head.centered {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .sec-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--cyan);
      text-transform: uppercase;
      letter-spacing: 2px;
      margin-bottom: 10px;
    }
    .sec-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #fff;
    }
    .sec-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .hero-banner {
      background: linear-gradient(rgba(26,26,26,0.85), rgba(26,26,26,0.92)), url('/assets/images/ede400080126f844.png') center/cover no-repeat;
      padding: 85px 0 100px;
      border-bottom: 2px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #fff;
      margin-bottom: 20px;
    }
    .hero-h1 mark {
      background: transparent;
      color: var(--cyan);
    }
    .hero-p {
      font-size: 16px;
      color: #ccc;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .badge-iso {
      display: inline-flex;
      align-items: center;
      background: rgba(0, 242, 255, 0.08);
      border: 1px solid var(--border-color);
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 13px;
      color: var(--cyan);
      margin-bottom: 22px;
      gap: 8px;
    }
    .booking-card {
      background: #1f1f1f;
      border: 2px solid var(--cyan);
      border-radius: 4px;
      padding: 30px;
    }
    .booking-card h3 {
      font-size: 20px;
      color: #fff;
      margin-bottom: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .booking-card h3 span {
      font-size: 12px;
      background: var(--pink);
      color: #fff;
      padding: 2px 8px;
      border-radius: 2px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      color: #bbb;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      background: #141414;
      border: 1px solid #444;
      padding: 10px 14px;
      color: #fff;
      border-radius: 3px;
      font-size: 14px;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--cyan);
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .card-bordered {
      background: var(--bg-card);
      border: 2px solid var(--border-color);
      border-radius: 4px;
      padding: 28px;
      transition: all 0.25s ease;
    }
    .card-bordered:hover {
      border-color: var(--cyan);
      transform: translateY(-3px);
    }
    .card-icon {
      font-size: 28px;
      color: var(--cyan);
      margin-bottom: 16px;
    }
    .card-title {
      font-size: 19px;
      color: #fff;
      margin-bottom: 12px;
      font-weight: 700;
    }
    .card-desc {
      font-size: 14px;
      color: #aaa;
      line-height: 1.65;
    }
    .chart-panel {
      background: #151515;
      border: 1px solid #333;
      padding: 24px;
      border-radius: 4px;
    }
    .chart-bar-item {
      margin-bottom: 16px;
    }
    .chart-bar-title {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 6px;
      color: #bbb;
    }
    .chart-progress {
      height: 8px;
      background: #2a2a2a;
      border-radius: 4px;
      overflow: hidden;
    }
    .chart-bar-fill {
      height: 100%;
      background: var(--cyan);
    }
    .chart-bar-fill.pink {
      background: var(--pink);
    }
    .stat-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      background: #161616;
      border: 2px solid var(--border-color);
      border-radius: 4px;
      padding: 30px;
      text-align: center;
    }
    .stat-num {
      font-size: 40px;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1;
      margin-bottom: 8px;
      font-family: monospace;
    }
    .stat-label {
      font-size: 14px;
      color: #aaa;
    }
    .article-item {
      background: #1e1e1e;
      border-left: 3px solid var(--cyan);
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      margin-bottom: 14px;
      transition: background 0.2s ease;
    }
    .article-item:hover {
      background: #252525;
    }
    .article-info h4 {
      font-size: 17px;
      color: #fff;
      margin-bottom: 6px;
    }
    .article-info p {
      font-size: 13px;
      color: #888;
    }
    .article-tag {
      font-size: 12px;
      color: var(--cyan);
      border: 1px solid var(--border-color);
      padding: 3px 8px;
      white-space: nowrap;
    }
    .faq-accordion details {
      background: var(--bg-card);
      border: 1px solid #333;
      border-radius: 4px;
      margin-bottom: 12px;
      padding: 18px 24px;
      cursor: pointer;
    }
    .faq-accordion summary {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-accordion summary::-webkit-details-marker {
      display: none;
    }
    .faq-accordion summary::after {
      content: '+';
      color: var(--cyan);
      font-size: 20px;
      font-weight: 300;
    }
    .faq-accordion details[open] summary::after {
      content: '-';
    }
    .faq-accordion p {
      font-size: 14px;
      color: #aaa;
      margin-top: 14px;
      line-height: 1.7;
    }
    .site-footer {
      background: #0f0f0f;
      border-top: 1px solid #282828;
      padding: 60px 0 30px;
      font-size: 14px;
      color: #777;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 15px;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-col p {
      line-height: 1.8;
      margin-bottom: 12px;
    }
    .footer-bottom {
      border-top: 1px solid #222;
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      font-size: 12px;
    }
    @media (max-width: 992px) {
      .hero-grid, .grid-4, .grid-3, .grid-2, .footer-grid {
        grid-template-columns: 1fr;
      }
      .stat-bar {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .header-contact {
        display: none;
      }
      .nav-list {
        display: none;
        flex-direction: column;
        padding-top: 15px;
        gap: 12px;
      }
      .nav-list.active {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .sec-title {
        font-size: 26px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
      }
    }