/* roulang page: index */
:root {
      --bg-deep: #0B0E17;
      --cyan-primary: #00E5FF;
      --purple-accent: #B44CFF;
      --glass-bg: rgba(255, 255, 255, 0.03);
      --glass-border: rgba(0, 229, 255, 0.15);
      --success-green: #00F0A8;
      --warning-orange: #FF6B35;
      --text-light: #B0C4DE;
      --text-muted: #6B7B8D;
      --radius-card: 16px;
      --radius-btn: 12px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-mono: "Inter", "SF Mono", monospace;
      --transition-smooth: 0.3s ease-out;
      --container-max: 1280px;
      --section-padding: 100px 0;
      --mobile-padding: 60px 0;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-deep);
      color: var(--text-light);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    
    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      transition: background 0.4s ease, backdrop-filter 0.4s ease;
      background: transparent;
      backdrop-filter: blur(0px);
    }
    
    .navbar.scrolled {
      background: rgba(11, 14, 23, 0.85);
      backdrop-filter: blur(30px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.1);
    }
    
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 16px 24px;
    }
    
    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: #fff;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .logo i {
      color: var(--cyan-primary);
      font-size: 2rem;
    }
    
    .nav-links {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }
    
    .nav-chip {
      background: transparent;
      border: none;
      color: var(--text-light);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition-smooth);
      text-decoration: none;
      cursor: pointer;
    }
    
    .nav-chip:hover,
    .nav-chip.active {
      color: var(--cyan-primary);
      background: rgba(0, 229, 255, 0.08);
    }
    
    .btn-primary-nav {
      background: var(--cyan-primary);
      color: var(--bg-deep);
      border: none;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition-smooth);
      box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
      margin-left: 16px;
    }
    
    .btn-primary-nav:hover {
      box-shadow: 0 0 25px rgba(0, 229, 255, 0.6);
      background: #33EAFF;
    }
    
    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: var(--cyan-primary);
      background: none;
      border: none;
      cursor: pointer;
    }
    
    /* Hero */
    .hero {
      padding: 180px 0 100px;
      position: relative;
      overflow: hidden;
    }
    
    .hero .container {
      display: flex;
      align-items: center;
      gap: 60px;
    }
    
    .hero-left {
      flex: 0 0 55%;
    }
    
    .hero-left h1 {
      font-size: 52px;
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.2;
      color: #fff;
      margin-bottom: 24px;
    }
    
    .hero-left .subtitle {
      font-size: 1.2rem;
      color: var(--text-light);
      margin-bottom: 40px;
      max-width: 500px;
    }
    
    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    
    .btn-main {
      background: var(--cyan-primary);
      color: var(--bg-deep);
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      text-decoration: none;
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
      transition: var(--transition-smooth);
    }
    
    .btn-main:hover {
      box-shadow: 0 0 35px rgba(0, 229, 255, 0.7);
      background: #33EAFF;
      transform: translateY(-2px);
    }
    
    .btn-outline {
      background: transparent;
      color: var(--cyan-primary);
      border: 1px solid var(--cyan-primary);
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    
    .btn-outline:hover {
      background: rgba(0, 229, 255, 0.1);
    }
    
    .hero-right {
      flex: 0 0 45%;
      position: relative;
    }
    
    .glass-panel {
      background: rgba(255, 255, 255, 0.03);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(0, 229, 255, 0.25);
      border-radius: var(--radius-card);
      padding: 32px;
      box-shadow: inset 0 0 30px rgba(0, 229, 255, 0.03);
      position: relative;
      z-index: 2;
    }
    
    .match-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
    }
    
    .team {
      font-weight: 700;
      color: #fff;
    }
    
    .score {
      font-family: var(--font-mono);
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--cyan-primary);
      text-shadow: 0 0 15px rgba(0,229,255,0.4);
    }
    
    .kda-row {
      display: flex;
      justify-content: space-between;
      font-family: var(--font-mono);
      color: var(--text-light);
      margin-top: 16px;
    }
    
    .light-pulse {
      animation: pulse 2s infinite;
    }
    
    @keyframes pulse {
      0% { opacity: 0.9; }
      50% { opacity: 1; text-shadow: 0 0 25px var(--cyan-primary); }
      100% { opacity: 0.9; }
    }
    
    .bg-blur {
      position: absolute;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(0,229,255,0.15) 0%, transparent 70%);
      top: -50px;
      right: -50px;
      z-index: 0;
      filter: blur(80px);
    }
    
    /* 数据网格 */
    .stats-grid {
      padding: var(--section-padding);
    }
    
    .section-title {
      font-size: 36px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: #fff;
      margin-bottom: 48px;
      text-align: center;
    }
    
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    
    .stat-item {
      text-align: center;
      padding: 20px;
      border-right: 1px solid rgba(255,255,255,0.08);
    }
    
    .stat-item:last-child {
      border-right: none;
    }
    
    .stat-number {
      font-family: var(--font-mono);
      font-size: 40px;
      font-weight: 700;
      color: var(--cyan-primary);
    }
    
    .stat-label {
      color: var(--purple-accent);
      font-size: 14px;
      margin-top: 8px;
    }
    
    /* 瀑布流 */
    .features {
      padding: var(--section-padding);
    }
    
    .waterfall {
      columns: 3;
      column-gap: 24px;
    }
    
    .feature-card {
      break-inside: avoid;
      margin-bottom: 24px;
      background: var(--glass-bg);
      backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      overflow: hidden;
      transition: var(--transition-smooth);
      box-shadow: inset 0 0 25px rgba(0,229,255,0.02);
    }
    
    .feature-card:hover {
      border-color: rgba(180, 76, 255, 0.6);
      transform: translateY(-4px);
      background: rgba(255,255,255,0.05);
    }
    
    .feature-card img {
      width: 100%;
      display: block;
      height: auto;
      border-bottom: 1px solid var(--glass-border);
    }
    
    .card-content {
      padding: 24px;
    }
    
    .card-content h3 {
      font-size: 22px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 12px;
    }
    
    .card-content p {
      color: var(--text-light);
      margin-bottom: 16px;
    }
    
    .tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    
    .tag {
      border: 1px solid var(--purple-accent);
      color: var(--purple-accent);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
    }
    
    /* 对比表 */
    .solutions {
      padding: var(--section-padding);
    }
    
    .table-wrapper {
      overflow-x: auto;
    }
    
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 700px;
    }
    
    .compare-table th {
      text-align: left;
      padding: 20px;
      background: rgba(0,229,255,0.05);
      color: #fff;
      font-weight: 600;
    }
    
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .highlight-col {
      box-shadow: 0 0 20px rgba(0,229,255,0.15);
      background: rgba(0,229,255,0.02);
    }
    
    .mobile-cards {
      display: none;
    }
    
    /* FAQ */
    .faq {
      padding: var(--section-padding);
    }
    
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.05);
      padding: 20px 0;
      cursor: pointer;
    }
    
    .faq-question {
      display: flex;
      justify-content: space-between;
      font-weight: 600;
      color: #fff;
      font-size: 1.1rem;
    }
    
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: var(--text-light);
    }
    
    .faq-item.active .faq-answer {
      max-height: 200px;
      margin-top: 16px;
    }
    
    /* CTA */
    .cta-section {
      padding: var(--section-padding);
      background: #0B0E17;
    }
    
    .cta-card {
      max-width: 700px;
      margin: 0 auto;
      background: rgba(255,255,255,0.03);
      backdrop-filter: blur(25px);
      border: 1px solid rgba(0,229,255,0.25);
      border-radius: var(--radius-card);
      padding: 48px;
    }
    
    .input-group {
      margin-bottom: 24px;
    }
    
    .input-group input,
    .input-group textarea {
      width: 100%;
      background: transparent;
      border: 1px solid rgba(0,229,255,0.3);
      border-radius: 8px;
      padding: 14px;
      color: #fff;
      font-family: var(--font-sans);
      transition: 0.2s;
    }
    
    .input-group input:focus,
    .input-group textarea:focus {
      outline: none;
      border-color: var(--purple-accent);
    }
    
    .btn-gradient {
      background: linear-gradient(135deg, #B44CFF, #00E5FF);
      color: #fff;
      border: none;
      padding: 16px;
      width: 100%;
      border-radius: var(--radius-btn);
      font-weight: 700;
      box-shadow: 0 0 25px rgba(180,76,255,0.5);
      cursor: pointer;
      transition: 0.3s;
    }
    
    /* Footer */
    .footer {
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255,255,255,0.05);
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
    }
    
    .footer-links a {
      display: block;
      color: var(--text-light);
      text-decoration: none;
      margin-bottom: 8px;
    }
    
    .copyright {
      text-align: center;
      margin-top: 40px;
      color: var(--text-muted);
    }
    
    @media (max-width: 1024px) {
      .hero .container { flex-direction: column; }
      .waterfall { columns: 2; }
      .grid-4 { grid-template-columns: repeat(2,1fr); }
    }
    
    @media (max-width: 768px) {
      .nav-links { display: none; flex-direction: column; width: 100%; background: #0B0E17; position: absolute; top: 70px; left:0; padding:20px; }
      .nav-links.open { display: flex; }
      .hamburger { display: block; }
      .waterfall { columns: 1; }
      .faq-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .compare-table { display: none; }
      .mobile-cards { display: block; }
      .hero-left h1 { font-size: 32px; }
      .section-title { font-size: 24px; }
    }