/* roulang page: index */
:root {
      --gg-black: #0B0C10;
      --gg-gold: #F2C94C;
      --gg-dark-blue: #1F2833;
      --gg-teal: #45A29E;
      --gg-white: #F5F5F5;
      --gg-gray: #C5C6C7;
      --gg-font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --gg-font-mono: "Inter", "SF Mono", monospace;
      --border-glow: rgba(242, 201, 76, 0.2);
      --shadow-gold: 0 0 20px rgba(242, 201, 76, 0.25);
      --transition-fast: all 0.2s ease;
      --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    }
    * {
      box-sizing: border-box;
    }
    body {
      background-color: var(--gg-black);
      color: var(--gg-white);
      font-family: var(--gg-font-sans);
      line-height: 1.75;
      margin: 0;
      overflow-x: hidden;
    }
    .container {
      max-width: 1200px;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    h1, h2, h3, h4 {
      font-weight: 650;
      letter-spacing: -0.3px;
    }
    h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.5px;
    }
    h2 {
      font-size: 2.25rem;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    h2::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 28px;
      background-color: var(--gg-gold);
      border-radius: 2px;
    }
    h3 {
      font-size: 1.35rem;
      font-weight: 600;
    }
    h4 {
      font-size: 1.1rem;
      font-weight: 600;
    }
    .text-muted-custom {
      color: var(--gg-gray) !important;
    }
    .text-gold {
      color: var(--gg-gold) !important;
    }
    .bg-dark-blue {
      background-color: var(--gg-dark-blue);
    }
    .btn-primary-gold {
      background-color: var(--gg-gold);
      color: var(--gg-black);
      font-weight: 700;
      border: none;
      border-radius: 8px;
      padding: 0.75rem 2rem;
      transition: var(--transition-smooth);
      letter-spacing: 0.5px;
    }
    .btn-primary-gold:hover {
      background-color: #e0b83a;
      color: #000;
      box-shadow: 0 0 25px rgba(242, 201, 76, 0.5);
      transform: translateY(-2px);
    }
    .btn-outline-gold {
      border: 1.5px solid var(--gg-gold);
      color: var(--gg-gold);
      background: transparent;
      font-weight: 600;
      border-radius: 8px;
      padding: 0.75rem 2rem;
      transition: var(--transition-smooth);
    }
    .btn-outline-gold:hover {
      background-color: rgba(242, 201, 76, 0.1);
      color: var(--gg-gold);
      border-color: var(--gg-gold);
      transform: translateY(-2px);
    }
    .navbar {
      background: rgba(11, 12, 16, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(242, 201, 76, 0.35);
      padding: 0.75rem 0;
      transition: var(--transition-fast);
    }
    .navbar-brand {
      font-family: 'Inter', var(--gg-font-sans);
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--gg-gold) !important;
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .navbar-brand i {
      font-size: 1.4rem;
      color: var(--gg-teal);
    }
    .nav-link {
      color: var(--gg-gray) !important;
      font-weight: 500;
      margin: 0 0.5rem;
      transition: var(--transition-fast);
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--gg-gold) !important;
    }
    .badge-gold-pulse {
      background: var(--gg-gold);
      color: var(--gg-black);
      font-weight: 700;
      font-size: 0.75rem;
      padding: 0.3rem 0.7rem;
      border-radius: 20px;
      margin-left: 0.6rem;
      animation: pulse 2s infinite;
      letter-spacing: 0.3px;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(242, 201, 76, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(242, 201, 76, 0); }
      100% { box-shadow: 0 0 0 0 rgba(242, 201, 76, 0); }
    }
    .navbar-toggler {
      border-color: var(--gg-gold);
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(242, 201, 76, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    .hero-section {
      min-height: 90vh;
      background: radial-gradient(circle at 30% 40%, rgba(31,40,51,0.8) 0%, #0B0C10 85%);
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      display: flex;
      align-items: center;
      position: relative;
    }
    .stat-badge {
      font-family: var(--gg-font-mono);
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--gg-gold);
      line-height: 1.2;
    }
    .card-custom {
      background: var(--gg-dark-blue);
      border: 1px solid rgba(242, 201, 76, 0.15);
      border-radius: 12px;
      transition: var(--transition-smooth);
    }
    .card-custom:hover {
      border-color: var(--gg-gold);
      box-shadow: var(--shadow-gold);
    }
    .feature-img {
      border-radius: 12px;
      border: 1px solid rgba(242, 201, 76, 0.25);
      transition: var(--transition-smooth);
      width: 100%;
      height: auto;
      object-fit: cover;
    }
    .feature-img:hover {
      filter: brightness(1.1);
    }
    .scene-card img {
      height: 200px;
      object-fit: cover;
      border-radius: 12px 12px 0 0;
      transition: transform 0.3s ease;
    }
    .scene-card:hover img {
      transform: scale(1.03);
    }
    .pricing-card {
      background: var(--gg-dark-blue);
      border: 1px solid rgba(242, 201, 76, 0.15);
      border-radius: 16px;
      transition: var(--transition-smooth);
    }
    .pricing-card.recommended {
      border-color: var(--gg-gold);
      box-shadow: 0 0 30px rgba(242, 201, 76, 0.3);
      position: relative;
    }
    .accordion-button {
      background-color: transparent;
      color: var(--gg-white);
      font-weight: 600;
      border: none;
      box-shadow: none;
      padding: 1.2rem 1rem;
      border-bottom: 1px solid rgba(242, 201, 76, 0.15);
    }
    .accordion-button:not(.collapsed) {
      background-color: var(--gg-dark-blue);
      color: var(--gg-gold);
      box-shadow: none;
    }
    .accordion-button::after {
      filter: invert(80%) sepia(50%) saturate(500%) hue-rotate(355deg);
    }
    .accordion-item {
      background: transparent;
      border: none;
    }
    .footer-link {
      color: var(--gg-gray);
      text-decoration: none;
      transition: var(--transition-fast);
    }
    .footer-link:hover {
      color: var(--gg-gold);
    }
    .footer-input {
      background: #0B0C10;
      border: 1px solid var(--gg-gray);
      color: white;
      border-radius: 6px;
      padding: 0.6rem;
    }
    .footer-input:focus {
      border-color: var(--gg-gold);
      box-shadow: none;
    }
    @media (max-width: 768px) {
      h1 {
        font-size: 2.2rem;
      }
      h2 {
        font-size: 1.9rem;
      }
    }

@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-12px); } 100% { transform: translateY(0px); } }

.border-gold-transparent { border-color: rgba(242,201,76,0.15) !important; }