/* roulang page: index */
:root {
      --primary-deep: #0A0F1E;
      --primary-bg: #141B2D;
      --accent-neon: #00F0A8;
      --accent-pink: #FF3C5A;
      --card-bg: #1A2235;
      --text-primary: #FFFFFF;
      --text-secondary: #B0B8C8;
      --text-muted: #6B7280;
      --border-light: rgba(0, 240, 168, 0.08);
      --border-focus: rgba(0, 240, 168, 0.5);
      --radius-card: 20px;
      --radius-btn: 30px;
      --radius-input: 12px;
      --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
      --shadow-hover: 0 12px 40px rgba(0, 240, 168, 0.15);
      --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      background: linear-gradient(135deg, #0A0F1E 0%, #141B2D 100%);
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      color: var(--text-secondary);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4, .navbar-brand, .btn, .highlight-title {
      font-family: var(--font-heading);
      font-weight: 700;
      color: var(--text-primary);
    }

    h1 {
      font-size: 48px;
      letter-spacing: -0.5px;
      line-height: 1.15;
    }

    h2 {
      font-size: 36px;
      letter-spacing: -0.3px;
    }

    h3 {
      font-size: 24px;
      font-weight: 600;
    }

    p {
      font-size: 16px;
      color: var(--text-secondary);
    }

    .small-text {
      font-size: 14px;
      color: var(--text-muted);
    }

    a {
      color: var(--accent-neon);
      text-decoration: none;
      transition: color 0.2s;
    }

    a:hover {
      color: #00ffbb;
    }

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

    /* 容器微调 */
    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    @media (max-width: 768px) {
      .container-custom {
        padding: 0 16px;
      }
      h1 {
        font-size: 32px;
      }
      h2 {
        font-size: 26px;
      }
    }

    /* 按钮重塑 */
    .btn {
      border-radius: var(--radius-btn);
      padding: 12px 28px;
      font-weight: 600;
      transition: all 0.25s ease;
      border: none;
      background: transparent;
    }
    .btn-primary-custom {
      background: var(--accent-neon);
      color: #0A0F1E;
      border: none;
      box-shadow: 0 4px 14px rgba(0, 240, 168, 0.3);
    }
    .btn-primary-custom:hover {
      background: #00ffbb;
      color: #0A0F1E;
      box-shadow: 0 8px 22px rgba(0, 240, 168, 0.45);
      transform: translateY(-1px);
    }
    .btn-outline-neon {
      border: 1px solid var(--accent-neon);
      color: var(--accent-neon);
      background: transparent;
    }
    .btn-outline-neon:hover {
      background: rgba(0, 240, 168, 0.1);
      color: #00ffbb;
      border-color: #00ffbb;
    }
    .btn-lg-custom {
      padding: 16px 48px;
      font-size: 18px;
    }

    /* 导航重塑 */
    .navbar {
      background: rgba(10, 15, 30, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
      padding: 12px 0;
      transition: all 0.3s;
    }
    .navbar-brand {
      font-size: 24px;
      font-weight: 800;
      background: linear-gradient(135deg, #00F0A8, #00c882);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: 1px;
      margin-right: 2rem;
    }
    .navbar-nav .nav-link {
      color: var(--text-secondary) !important;
      font-weight: 500;
      padding: 8px 16px;
      margin: 0 4px;
      border-radius: 20px;
      transition: 0.2s;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--accent-neon) !important;
      background: rgba(0, 240, 168, 0.08);
    }
    .hot-tag {
      background: rgba(0, 240, 168, 0.15);
      color: var(--accent-neon);
      font-size: 12px;
      padding: 4px 14px;
      border-radius: 20px;
      margin-left: 8px;
      font-weight: 500;
    }
    .search-icon {
      color: var(--text-secondary);
      font-size: 20px;
      cursor: pointer;
      transition: 0.2s;
      margin-left: 12px;
    }
    .search-icon:hover {
      color: var(--accent-neon);
    }
    @media (max-width: 992px) {
      .navbar-collapse {
        background: rgba(10, 15, 30, 0.95);
        backdrop-filter: blur(20px);
        border-radius: 16px;
        padding: 16px;
        margin-top: 10px;
      }
    }

    /* 卡片重塑 */
    .card-custom {
      background: var(--card-bg);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .card-custom:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 240, 168, 0.25);
    }

    /* 区块间距 */
    section {
      padding: 120px 0;
    }
    @media (max-width: 768px) {
      section {
        padding: 80px 0;
      }
    }

    /* Hero 图片区动态 */
    .hero-image-wrapper {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      background: radial-gradient(circle at bottom right, rgba(0,240,168,0.2), transparent 70%);
    }
    .hero-image-wrapper img {
      width: 100%;
      height: auto;
      object-fit: cover;
      border-radius: 24px;
    }
    .floating-badge {
      position: absolute;
      background: var(--accent-pink);
      color: white;
      border-radius: 50px;
      padding: 8px 18px;
      font-weight: 700;
      box-shadow: 0 8px 20px rgba(255,60,90,0.4);
      animation: pulse 2s infinite;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* 亮点卡片 */
    .highlight-icon {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, #00F0A8, #00C882);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 24px;
    }
    .data-badge {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent-neon);
      line-height: 1;
    }
    .data-unit {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 案例卡片 */
    .case-card {
      background: var(--card-bg);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: 0.3s;
      margin-bottom: 24px;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-card img {
      transition: transform 0.4s;
      width: 100%;
      height: auto;
      object-fit: cover;
    }
    .case-card:hover img {
      transform: scale(1.03);
    }
    .tag-pink {
      background: rgba(255,60,90,0.1);
      color: var(--accent-pink);
      font-size: 12px;
      padding: 4px 12px;
      border-radius: 20px;
      display: inline-block;
    }

    /* 对比表 */
    .compare-col {
      background: var(--card-bg);
      border-radius: 20px;
      padding: 32px;
      border-left: 4px solid transparent;
    }
    .compare-col.ggbet {
      border-left-color: var(--accent-neon);
    }
    .compare-col.traditional {
      border-left-color: var(--text-muted);
    }
    .check-icon {
      color: var(--accent-neon);
    }
    .cross-icon {
      color: var(--accent-pink);
    }
    .highlight-row {
      background: rgba(0,240,168,0.05);
      border-radius: 8px;
      padding: 8px 12px;
    }

    /* FAQ */
    .accordion-button {
      background: var(--card-bg);
      color: var(--text-primary);
      font-weight: 600;
      font-size: 18px;
      border: none;
      box-shadow: none;
      border-radius: 16px !important;
    }
    .accordion-button:not(.collapsed) {
      background: #1F2A3D;
      color: var(--accent-neon);
      box-shadow: none;
    }
    .accordion-button::after {
      filter: brightness(0) invert(1);
    }
    .accordion-body {
      background: #1A2235;
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.8;
      border-radius: 0 0 16px 16px;
    }

    /* CTA 横幅 */
    .cta-banner {
      background: linear-gradient(135deg, #0A0F1E, #142B40);
      position: relative;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      top:0; left:0; right:0; bottom:0;
      background-image: radial-gradient(rgba(0,240,168,0.05) 1px, transparent 1px);
      background-size: 30px 30px;
    }

    /* 表单 */
    .form-control {
      background: var(--card-bg);
      border: 1px solid #2A3142;
      border-radius: var(--radius-input);
      color: white;
      padding: 12px 16px;
    }
    .form-control:focus {
      border-color: var(--accent-neon);
      box-shadow: 0 0 0 0.2rem rgba(0,240,168,0.25);
      background: #1F2A3D;
    }
    .form-control::placeholder {
      color: var(--text-muted);
    }

    footer {
      background: #080C18;
      border-top: 1px solid rgba(255,255,255,0.06);
      color: var(--text-muted);
    }
    footer a {
      color: var(--text-muted);
    }
    footer a:hover {
      color: var(--accent-neon);
    }
    .footer-brand {
      background: linear-gradient(135deg, #00F0A8, #00c882);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 800;
      font-size: 22px;
    }