/* roulang page: index */
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --primary: #00E5FF;
      --primary-dark: #007BFF;
      --accent: #FFD700;
      --bg-deep: #0A0E17;
      --glass-bg: rgba(15, 25, 45, 0.6);
      --glass-border: rgba(0, 229, 255, 0.15);
      --glass-border-hover: rgba(0, 229, 255, 0.4);
      --text-main: #E8ECF1;
      --text-muted: #8A94A6;
      --text-body: #B0B8C5;
      --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      --glow-cyan: 0 0 20px rgba(0, 229, 255, 0.5);
      --glow-gold: 0 0 20px rgba(255, 215, 0, 0.6);
      --radius-card: 20px;
      --radius-btn: 12px;
      --radius-sm: 10px;
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", sans-serif;
      --font-mono: "Roboto Mono", "DIN Alternate", "Courier New", monospace;
      --max-width: 1280px;
      --nav-height: 72px;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 导航 */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: var(--nav-height);
      background: rgba(10, 14, 23, 0.75);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.2);
      z-index: 100;
      display: flex;
      align-items: center;
      transition: background 0.3s, border-color 0.3s;
    }

    .nav.scrolled {
      background: rgba(10, 14, 23, 0.92);
      border-bottom-color: rgba(0, 229, 255, 0.4);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    .logo {
      font-size: 1.6rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -0.02em;
    }

    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }

    .nav-links a {
      font-weight: 500;
      color: var(--text-muted);
      transition: color 0.2s;
      font-size: 0.95rem;
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: var(--bg-deep);
      border: none;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      cursor: pointer;
      box-shadow: var(--glow-cyan);
      transition: all 0.3s ease;
      font-size: 0.95rem;
      display: inline-block;
      text-align: center;
    }

    .btn-primary:hover {
      box-shadow: 0 0 40px rgba(0, 229, 255, 0.8);
      transform: scale(1.05);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid rgba(0, 229, 255, 0.5);
      color: var(--primary);
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: transparent;
      border: none;
    }

    .hamburger span {
      width: 25px;
      height: 2px;
      background: var(--text-main);
      transition: 0.3s;
    }

    /* 移动端导航 */
    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(10, 14, 23, 0.96);
        backdrop-filter: blur(24px);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        transition: right 0.4s ease;
        z-index: 99;
        font-size: 1.5rem;
      }
      .nav-links.active {
        right: 0;
      }
      .hamburger {
        display: flex;
        z-index: 101;
      }
    }

    /* Hero */
    .hero {
      padding: 140px 0 80px;
      position: relative;
      background: radial-gradient(circle at 30% 40%, rgba(0, 229, 255, 0.08) 0%, transparent 50%);
      overflow: hidden;
    }

    .hero-particles {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 600"><rect width="1440" height="600" fill="none"/><path d="M0 300 Q 360 100 720 300 T 1440 300" stroke="rgba(0,229,255,0.15)" stroke-width="1.5" fill="none"/><circle cx="200" cy="150" r="2" fill="%2300E5FF" opacity="0.7"/><circle cx="900" cy="400" r="3" fill="%2300E5FF" opacity="0.5"/><circle cx="1200" cy="200" r="1.5" fill="%23FFD700" opacity="0.8"/></svg>');
      background-size: cover;
      background-position: center;
    }

    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    h1 {
      font-size: clamp(2.5rem, 6vw, 4rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.2;
      margin-bottom: 16px;
      text-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
    }

    .hero-sub {
      font-size: 1.25rem;
      color: var(--text-body);
      max-width: 600px;
      margin-bottom: 32px;
    }

    .score-card {
      background: var(--glass-bg);
      backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 24px 40px;
      margin: 20px 0 36px;
      display: flex;
      align-items: center;
      gap: 30px;
      box-shadow: var(--card-shadow);
      width: fit-content;
    }

    .team {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }

    .team-badge {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, #1e3a5f, #0f1923);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.2rem;
      color: white;
      border: 2px solid var(--primary);
    }

    .score {
      font-family: var(--font-mono);
      font-size: 3.2rem;
      font-weight: 700;
      color: var(--accent);
      text-shadow: var(--glow-gold);
      line-height: 1;
    }

    .match-time {
      color: var(--text-muted);
      font-size: 0.9rem;
      font-family: var(--font-mono);
    }

    @media (max-width: 768px) {
      .score-card {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
      }
      .hero {
        padding: 120px 0 60px;
      }
    }

    /* 通用板块 */
    .section {
      padding: 80px 0;
    }

    .section-title {
      font-size: clamp(2rem, 4vw, 2.8rem);
      font-weight: 700;
      margin-bottom: 20px;
      text-align: center;
    }

    .section-desc {
      color: var(--text-muted);
      text-align: center;
      max-width: 680px;
      margin: 0 auto 48px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .glass-card {
      background: rgba(15, 25, 45, 0.55);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(0, 229, 255, 0.12);
      border-radius: var(--radius-card);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      padding: 28px;
      transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    }

    .glass-card:hover {
      border-color: var(--glass-border-hover);
      box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
      transform: translateY(-4px);
    }

    @media (max-width: 1024px) {
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .grid-3 {
        grid-template-columns: 1fr;
      }
    }

    /* 实时数据面板 */
    .dashboard {
      background: rgba(10, 18, 28, 0.7);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(0, 229, 255, 0.25);
      border-radius: 24px;
      padding: 32px;
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
      box-shadow: 0 0 40px rgba(0,0,0,0.6);
      position: relative;
    }

    .dashboard::before {
      content: '';
      position: absolute;
      top: -1px; left: -1px; right: -1px; bottom: -1px;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(0,229,255,0.3), transparent 60%);
      z-index: -1;
      opacity: 0.3;
    }

    .data-field {
      font-family: var(--font-mono);
      color: var(--accent);
      font-size: 2rem;
      font-weight: 700;
      text-shadow: 0 0 12px rgba(255,215,0,0.8);
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid rgba(0,229,255,0.2);
      padding: 20px 0;
      cursor: pointer;
      transition: 0.2s;
    }
    .faq-question {
      font-weight: 600;
      color: var(--primary);
      display: flex;
      justify-content: space-between;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: var(--text-body);
      margin-top: 8px;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
    }

    /* 页脚 */
    .footer {
      background: #060A10;
      padding: 48px 0 24px;
      border-top: 1px solid rgba(0,229,255,0.3);
      text-align: center;
      color: var(--text-muted);
    }
    .social-icons i {
      font-size: 1.5rem;
      margin: 0 12px;
      color: var(--text-muted);
      transition: color 0.2s;
    }
    .social-icons i:hover {
      color: var(--primary);
    }

    button, .btn-primary, .btn-outline {
      cursor: pointer;
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }