/* roulang page: index */
:root {
      --qm-bg-base: #0a110e;
      --qm-bg-surface: #111a14;
      --qm-bg-card: rgba(18, 30, 24, 0.75);
      --qm-primary: #00e676;
      --qm-primary-hover: #00c853;
      --qm-accent: #ff5722;
      --qm-gold: #ffc107;
      --qm-text-main: #f1f5f9;
      --qm-text-muted: #94a3b8;
      --qm-border: rgba(0, 230, 118, 0.18);
      --qm-border-hover: rgba(0, 230, 118, 0.5);
    }
    *, *::before, *::after {
      box-sizing: border-box;
    }
    body {
      background-color: var(--qm-bg-base);
      color: var(--qm-text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    h1, h2, h3, h4, h5, h6 {
      color: #ffffff;
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    p {
      margin-bottom: 1.25rem;
    }
    a {
      text-decoration: none;
      transition: all 0.25s ease-in-out;
    }
    .neon-text {
      color: var(--qm-primary);
      text-shadow: 0 0 10px rgba(0, 230, 118, 0.45);
    }
    .top-bar {
      background-color: #050907;
      font-size: 0.825rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      color: var(--qm-text-muted);
      padding: 6px 0;
    }
    .main-nav {
      background-color: rgba(10, 17, 14, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 230, 118, 0.2);
      position: sticky;
      top: 0;
      z-index: 1030;
    }
    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo .bi-shield-check {
      color: var(--qm-primary);
      font-size: 1.6rem;
      filter: drop-shadow(0 0 6px rgba(0, 230, 118, 0.6));
    }
    .navbar-nav .nav-link {
      color: #cbd5e1;
      font-weight: 500;
      padding: 8px 16px;
      font-size: 0.95rem;
      position: relative;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--qm-primary);
      text-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
    }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 18px;
      height: 3px;
      background: var(--qm-primary);
      border-radius: 2px;
      box-shadow: 0 0 6px var(--qm-primary);
    }
    .btn-neon {
      background-color: var(--qm-primary);
      color: #050907;
      font-weight: 700;
      border: 1px solid var(--qm-primary);
      border-radius: 8px;
      padding: 10px 24px;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-neon:hover {
      background-color: var(--qm-primary-hover);
      color: #000;
      box-shadow: 0 0 16px rgba(0, 230, 118, 0.6);
      transform: translateY(-2px);
    }
    .btn-outline-neon {
      background-color: transparent;
      color: var(--qm-primary);
      font-weight: 600;
      border: 1px solid var(--qm-primary);
      border-radius: 8px;
      padding: 10px 22px;
      transition: all 0.3s ease;
    }
    .btn-outline-neon:hover {
      background-color: rgba(0, 230, 118, 0.12);
      color: #ffffff;
      box-shadow: 0 0 12px rgba(0, 230, 118, 0.35);
      border-color: var(--qm-primary);
    }
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-darker {
      background-color: #080e0b;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-surface {
      background-color: var(--qm-bg-surface);
    }
    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.8rem;
      letter-spacing: 0.06em;
      border-radius: 20px;
      background: rgba(0, 230, 118, 0.12);
      color: var(--qm-primary);
      border: 1px solid rgba(0, 230, 118, 0.3);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .section-title {
      font-size: 2.1rem;
      margin-bottom: 16px;
      font-weight: 800;
    }
    .section-desc {
      color: var(--qm-text-muted);
      max-width: 720px;
      font-size: 1rem;
      margin-bottom: 45px;
    }
    .card-dark {
      background: var(--qm-bg-card);
      border: 1px solid var(--qm-border);
      border-radius: 14px;
      padding: 28px;
      height: 100%;
      transition: all 0.3s ease;
      backdrop-filter: blur(8px);
    }
    .card-dark:hover {
      border-color: var(--qm-border-hover);
      box-shadow: 0 10px 28px rgba(0, 230, 118, 0.12);
      transform: translateY(-5px);
    }
    .hero-banner {
      min-height: 80vh;
      background: linear-gradient(180deg, rgba(10, 17, 14, 0.8) 0%, rgba(10, 17, 14, 0.95) 100%), url('/assets/images/8e0fb1feabb58dfb.jpg') center/cover no-repeat;
      display: flex;
      align-items: center;
      padding: 90px 0;
      position: relative;
    }
    .hero-stat-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 0, 0, 0.6);
      border: 1px solid rgba(0, 230, 118, 0.35);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      color: #e2e8f0;
      margin-bottom: 20px;
    }
    .hero-card-display {
      background: rgba(14, 25, 20, 0.9);
      border: 1px solid var(--qm-border);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 18px 45px rgba(0, 0, 0, 0.6);
    }
    .badge-featured {
      background: linear-gradient(90deg, #ff5722, #ff9800);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
    }
    .metric-number {
      font-size: 2.75rem;
      font-weight: 900;
      font-family: Consolas, "Courier New", monospace;
      color: var(--qm-primary);
      text-shadow: 0 0 12px rgba(0, 230, 118, 0.35);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .pricing-card.featured {
      border: 2px solid var(--qm-primary);
      box-shadow: 0 0 25px rgba(0, 230, 118, 0.25);
      transform: scale(1.03);
      position: relative;
    }
    .accordion-dark .accordion-item {
      background: var(--qm-bg-card);
      border: 1px solid var(--qm-border);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-dark .accordion-button {
      background: transparent;
      color: #f8fafc;
      font-weight: 600;
      font-size: 1.05rem;
      padding: 18px 24px;
      box-shadow: none;
    }
    .accordion-dark .accordion-button:not(.collapsed) {
      background: rgba(0, 230, 118, 0.08);
      color: var(--qm-primary);
    }
    .accordion-dark .accordion-button::after {
      filter: invert(1);
    }
    .accordion-dark .accordion-body {
      color: var(--qm-text-muted);
      padding: 20px 24px;
      line-height: 1.8;
      border-top: 1px solid rgba(0, 230, 118, 0.1);
    }
    .cta-strip {
      background: linear-gradient(135deg, rgba(0, 230, 118, 0.15) 0%, rgba(17, 26, 20, 0.95) 100%);
      border: 1px solid var(--qm-primary);
      border-radius: 18px;
      padding: 45px;
    }
    .form-control-dark {
      background-color: rgba(6, 12, 9, 0.85);
      border: 1px solid rgba(0, 230, 118, 0.3);
      color: #fff;
      padding: 12px 16px;
      border-radius: 8px;
    }
    .form-control-dark:focus {
      background-color: rgba(6, 12, 9, 0.95);
      border-color: var(--qm-primary);
      box-shadow: 0 0 8px rgba(0, 230, 118, 0.4);
      color: #fff;
    }
    .footer-section {
      background-color: #040806;
      border-top: 1px solid rgba(0, 230, 118, 0.15);
      padding: 60px 0 25px 0;
      color: #94a3b8;
      font-size: 0.9rem;
    }
    .footer-links a {
      color: #94a3b8;
      margin-bottom: 8px;
      display: inline-block;
    }
    .footer-links a:hover {
      color: var(--qm-primary);
      padding-left: 4px;
    }
    .floating-cta {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1040;
      background: rgba(14, 25, 20, 0.92);
      border: 1px solid var(--qm-primary);
      padding: 10px 18px;
      border-radius: 40px;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      gap: 12px;
      backdrop-filter: blur(8px);
    }
    @media (max-width: 768px) {
      .section-wrap {
        padding: 60px 0;
      }
      .section-title {
        font-size: 1.7rem;
      }
      .pricing-card.featured {
        transform: scale(1);
      }
      .floating-cta {
        left: 15px;
        right: 15px;
        bottom: 15px;
        justify-content: space-between;
      }
    }