/* roulang page: index */
:root {
      --gg-deep-blue: #0A1A2F;
      --gg-glass-bg: rgba(27, 58, 92, 0.25);
      --gg-glass-border: rgba(0, 229, 255, 0.15);
      --gg-glass-hover-border: rgba(0, 229, 255, 0.4);
      --gg-neon-cyan: #00E5FF;
      --gg-neon-cyan-dark: #00b8d4;
      --gg-gold: #FFB800;
      --gg-text-primary: #E8EDF2;
      --gg-text-secondary: #A0B4C8;
      --gg-text-muted: #5A7288;
      --gg-bg-dark: #060F1A;
      --gg-card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      --gg-card-hover-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
      --gg-blur: blur(16px);
      --gg-radius-card: 16px;
      --gg-radius-btn: 50px;
      --gg-radius-input: 12px;
      --gg-gutter: 24px;
      --font-sans: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--gg-deep-blue);
      color: var(--gg-text-primary);
      line-height: 1.8;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      letter-spacing: 0.01em;
    }

    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      line-height: 1.3;
    }

    a {
      color: var(--gg-text-secondary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--gg-neon-cyan);
    }

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

    .container {
      max-width: 1320px;
      padding-left: var(--gg-gutter);
      padding-right: var(--gg-gutter);
    }

    /* 自定义按钮 */
    .btn-gg-primary {
      background: var(--gg-neon-cyan);
      border: none;
      color: #0A1A2F;
      font-weight: 700;
      border-radius: var(--gg-radius-btn);
      padding: 0.75rem 2.2rem;
      letter-spacing: 0.03em;
      box-shadow: 0 4px 18px rgba(0, 229, 255, 0.4);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-size: 1rem;
    }
    .btn-gg-primary:hover {
      background: #3defff;
      box-shadow: 0 6px 24px rgba(0, 229, 255, 0.7);
      color: #0A1A2F;
      transform: translateY(-1px);
    }
    .btn-gg-outline {
      background: transparent;
      border: 1px solid var(--gg-neon-cyan);
      color: var(--gg-neon-cyan);
      font-weight: 600;
      border-radius: var(--gg-radius-btn);
      padding: 0.75rem 2.2rem;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
    }
    .btn-gg-outline:hover {
      background: rgba(0, 229, 255, 0.1);
      border-color: #ffffff;
      color: #ffffff;
    }
    .btn-gg-ghost {
      background: transparent;
      border: 1px solid rgba(255,255,255,0.2);
      color: #E8EDF2;
      border-radius: var(--gg-radius-btn);
      padding: 0.5rem 1.5rem;
      font-weight: 500;
      transition: 0.2s;
    }
    .btn-gg-ghost:hover {
      background: rgba(255,255,255,0.08);
      border-color: var(--gg-neon-cyan);
    }

    /* 导航栏 */
    .navbar {
      background: rgba(10, 26, 47, 0.8);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.2);
      padding: 0.75rem 0;
      transition: background 0.3s;
    }
    .navbar-brand {
      font-weight: 800;
      font-size: 1.8rem;
      letter-spacing: -0.5px;
      color: #ffffff !important;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .navbar-brand .logo-icon {
      font-size: 2rem;
      color: var(--gg-neon-cyan);
      line-height: 1;
    }
    .navbar-nav .nav-link {
      color: var(--gg-text-secondary) !important;
      font-weight: 500;
      margin: 0 0.5rem;
      padding: 0.5rem 0.8rem !important;
      transition: 0.2s;
      border-radius: 6px;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--gg-neon-cyan) !important;
      background: rgba(0,229,255,0.05);
    }
    .navbar .search-icon {
      font-size: 1.3rem;
      color: var(--gg-text-secondary);
      cursor: pointer;
      margin-right: 1rem;
    }
    .navbar .search-icon:hover {
      color: var(--gg-neon-cyan);
    }

    /* Hero 区域 */
    .hero-section {
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 6rem 0 5rem;
    }
    .hero-overlay {
      background: rgba(10, 26, 47, 0.75);
      backdrop-filter: blur(6px);
      position: absolute;
      inset: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-title {
      font-size: 3.5rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      background: linear-gradient(135deg, #00E5FF, #5B8DEF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 1rem;
    }
    .hero-sub {
      font-size: 1.3rem;
      color: #ffffff;
      font-weight: 500;
      margin-bottom: 1.5rem;
    }
    .hero-desc {
      color: var(--gg-text-secondary);
      font-size: 1.1rem;
      max-width: 500px;
    }
    .glass-card {
      background: var(--gg-glass-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--gg-glass-border);
      border-radius: var(--gg-radius-card);
      box-shadow: var(--gg-card-shadow);
    }
    .hero-data-card {
      padding: 2rem;
      text-align: center;
      color: white;
    }
    .live-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--gg-neon-cyan);
    }

    /* 核心优势网格 */
    .advantage-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 1.5rem;
    }
    .adv-main-card {
      grid-row: span 2;
    }
    .adv-card {
      background: var(--gg-glass-bg);
      backdrop-filter: blur(12px);
      border: 1px solid var(--gg-glass-border);
      border-radius: var(--gg-radius-card);
      padding: 2rem 1.5rem;
      transition: all 0.25s;
      box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    }
    .adv-card:hover {
      border-color: var(--gg-glass-hover-border);
      box-shadow: var(--gg-card-hover-shadow);
      transform: translateY(-4px);
    }
    .adv-main-card {
      border-left: 3px solid var(--gg-neon-cyan);
    }
    .adv-icon {
      font-size: 2.2rem;
      color: var(--gg-neon-cyan);
      margin-bottom: 1rem;
    }

    /* 赛事瀑布流 */
    .waterfall-left .event-card {
      background: var(--gg-glass-bg);
      backdrop-filter: blur(10px);
      border-radius: var(--gg-radius-card);
      overflow: hidden;
      margin-bottom: 1.8rem;
      border: 1px solid var(--gg-glass-border);
      transition: 0.2s;
    }
    .event-card:hover {
      border-color: var(--gg-neon-cyan);
      box-shadow: 0 8px 28px rgba(0,229,255,0.2);
    }
    .event-img {
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    .waterfall-right .small-story {
      background: rgba(27,58,92,0.3);
      backdrop-filter: blur(8px);
      border-radius: 12px;
      padding: 1rem;
      margin-bottom: 1.2rem;
      border-left: 4px solid var(--gg-neon-cyan);
    }

    /* 对比表 */
    .compare-card {
      background: rgba(10,26,47,0.7);
      backdrop-filter: blur(12px);
      border-radius: 20px;
      padding: 2rem;
      border: 1px solid transparent;
    }
    .pro-card {
      border: 1px solid var(--gg-neon-cyan);
      box-shadow: 0 0 28px rgba(0,229,255,0.25);
    }

    /* 数据滚动 */
    .stat-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--gg-neon-cyan);
    }

    /* FAQ */
    .accordion-button {
      background: rgba(27,58,92,0.25);
      backdrop-filter: blur(10px);
      color: white;
      font-weight: 600;
      border: none;
      border-radius: 12px !important;
      padding: 1.2rem 1.5rem;
    }
    .accordion-button:not(.collapsed) {
      background: rgba(0,229,255,0.1);
      color: white;
      box-shadow: none;
      border-left: 4px solid var(--gg-neon-cyan);
    }
    .accordion-item {
      background: transparent;
      border: none;
      margin-bottom: 1rem;
    }

    /* CTA 横幅 */
    .cta-banner {
      background: linear-gradient(135deg, #0A1A2F 0%, #1B3A5C 100%);
      position: relative;
      overflow: hidden;
    }
    .cta-glow {
      position: absolute;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(0,229,255,0.2) 0%, transparent 70%);
      top: -50px;
      right: -50px;
      animation: pulse-glow 4s infinite;
    }

    @keyframes pulse-glow {
      0% { opacity: 0.6; transform: scale(1); }
      50% { opacity: 1; transform: scale(1.1); }
      100% { opacity: 0.6; transform: scale(1); }
    }

    footer {
      background: #060F1A;
      color: var(--gg-text-secondary);
    }
    .footer-links a {
      display: block;
      margin-bottom: 0.4rem;
    }
    .social-icon {
      display: inline-flex;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid #5A7288;
      align-items: center;
      justify-content: center;
      color: #A0B4C8;
      margin-right: 0.5rem;
      transition: 0.2s;
    }
    .social-icon:hover {
      background: var(--gg-neon-cyan);
      border-color: var(--gg-neon-cyan);
      color: #0A1A2F;
    }

    @media (max-width: 992px) {
      .hero-title { font-size: 2.8rem; }
      .advantage-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .hero-title { font-size: 2.2rem; }
      .advantage-grid { grid-template-columns: 1fr; }
      .waterfall-flex { flex-direction: column; }
      .navbar-collapse { background: rgba(10,26,47,0.95); padding: 1rem; border-radius: 1rem; }
    }