/* roulang page: index */
:root {
      --primary: #7B2FF7;
      --primary-light: #A855F7;
      --accent: #F59E0B;
      --accent-light: #FBBF24;
      --bg-deep: #0A0A0F;
      --bg-surface: #12121A;
      --card-bg: rgba(26, 26, 36, 0.85);
      --card-border: rgba(123, 47, 247, 0.25);
      --text-primary: #FFFFFF;
      --text-secondary: #B0B0C0;
      --text-muted: #6B6B7B;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-glow: 0 4px 24px rgba(123, 47, 247, 0.15);
      --shadow-hover: 0 8px 40px rgba(123, 47, 247, 0.35);
      --font-body: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      --font-mono: 'Space Grotesk', monospace;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-deep);
    }

    body {
      font-family: var(--font-body);
      background-color: var(--bg-deep);
      color: var(--text-secondary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.3s ease;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 自定义滚动条 */
    ::-webkit-scrollbar {
      width: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #0A0A0F;
    }
    ::-webkit-scrollbar-thumb {
      background: #7B2FF7;
      border-radius: 12px;
    }

    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(10, 10, 15, 0.8);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(123, 47, 247, 0.3);
      z-index: 1000;
      padding: 12px 0;
      transition: all 0.3s ease;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .logo {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.8rem;
      color: #fff;
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo i {
      color: var(--accent);
      font-size: 2rem;
    }
    .logo span {
      background: linear-gradient(135deg, #fff 0%, #c084fc 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-links a {
      font-weight: 500;
      font-size: 0.95rem;
      color: #ccc;
      transition: color 0.3s, text-shadow 0.3s;
    }
    .nav-links a:hover {
      color: #fff;
      text-shadow: 0 0 8px rgba(123,47,247,0.8);
    }
    .nav-cta {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      padding: 10px 24px;
      border-radius: 30px;
      color: #fff !important;
      font-weight: 600;
      box-shadow: 0 0 18px rgba(123,47,247,0.7);
      transition: all 0.3s ease;
      margin-left: 16px;
    }
    .nav-cta:hover {
      box-shadow: 0 0 28px rgba(168,85,247,0.9);
      transform: translateY(-2px);
      color: #fff !important;
    }
    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: #fff;
      cursor: pointer;
    }

    /* 移动端导航抽屉 */
    .mobile-menu {
      position: fixed;
      top: 0;
      right: -100%;
      width: 75%;
      max-width: 320px;
      height: 100vh;
      background: rgba(10,10,15,0.96);
      backdrop-filter: blur(20px);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 28px;
      z-index: 2000;
      transition: right 0.3s ease;
      border-left: 1px solid var(--primary);
    }
    .mobile-menu.active {
      right: 0;
    }
    .mobile-menu a {
      font-size: 1.3rem;
      font-weight: 600;
      color: #ddd;
      padding: 8px 0;
    }
    .close-menu {
      align-self: flex-end;
      font-size: 2rem;
      color: #fff;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 100px 0;
      position: relative;
    }

    h2 {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-subtitle {
      color: var(--text-secondary);
      font-size: 1.1rem;
      margin-bottom: 48px;
    }

    /* Hero */
    #hero {
      height: 100vh;
      display: flex;
      align-items: center;
      position: relative;
      background: radial-gradient(circle at 30% 40%, #1a1030 0%, #0A0A0F 80%);
      overflow: hidden;
    }
    .hero-canvas {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 700px;
    }
    .hero h1 {
      font-size: clamp(2.8rem, 7vw, 4.2rem);
      font-weight: 700;
      line-height: 1.2;
      color: #fff;
      margin-bottom: 24px;
    }
    .hero h1 span {
      color: var(--accent);
    }
    .hero p {
      font-size: 1.2rem;
      color: #ccc;
      margin-bottom: 40px;
      max-width: 550px;
    }
    .btn-group {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #9333ea);
      padding: 16px 38px;
      border-radius: 50px;
      font-weight: 700;
      color: #fff;
      box-shadow: 0 0 24px rgba(123,47,247,0.7);
      transition: 0.3s;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      box-shadow: 0 0 38px var(--primary-light);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      padding: 16px 38px;
      border-radius: 50px;
      font-weight: 600;
      color: #fff;
      transition: 0.3s;
    }
    .btn-outline:hover {
      background: rgba(123,47,247,0.15);
      border-color: #a855f7;
    }

    /* 优势 */
    #features {
      background-color: var(--bg-surface);
    }
    .features-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: start;
    }
    .feature-left {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 28px;
      backdrop-filter: blur(8px);
      transition: all 0.3s;
    }
    .feature-card:hover {
      border-color: var(--primary-light);
      box-shadow: var(--shadow-hover);
    }
    .feature-card i {
      font-size: 2rem;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .feature-card h4 {
      color: #fff;
      font-size: 1.3rem;
      margin-bottom: 8px;
    }
    .feature-right {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 100%;
      min-height: 320px;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      display: flex;
      align-items: flex-end;
      padding: 24px;
      border: 1px solid var(--card-border);
    }
    .feature-right .overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(0deg, rgba(10,10,15,0.9) 0%, transparent 70%);
    }
    .feature-right h3 {
      position: relative;
      color: #fff;
      font-size: 2rem;
    }

    /* 赛事服务 */
    .tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      justify-content: center;
      margin-top: 30px;
    }
    .tag {
      background: rgba(123,47,247,0.15);
      border: 1px solid var(--primary);
      padding: 12px 28px;
      border-radius: 40px;
      font-weight: 600;
      color: #eee;
      transition: 0.3s;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .tag:hover {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 0 20px var(--primary);
    }

    /* 数据统计 */
    #stats {
      background: #0A0A0F;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-item h3 {
      font-family: var(--font-mono);
      font-size: 3rem;
      font-weight: 700;
      color: var(--accent);
    }
    .stat-item p {
      color: #aaa;
    }

    /* 战队 */
    .team-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
    }
    .player-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--card-border);
      transition: 0.3s;
    }
    .player-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }
    .player-img {
      height: 200px;
      background-size: cover;
      background-position: center;
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid rgba(123,47,247,0.2);
      padding: 18px 0;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 600;
      color: #fff;
      display: flex;
      justify-content: space-between;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: 0.35s ease;
      color: #b0b0c0;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 12px;
    }

    /* CTA */
    #cta {
      background: radial-gradient(circle at 20% 30%, #1e1035, #0A0A0F);
      text-align: center;
    }
    .cta-form {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-top: 28px;
      flex-wrap: wrap;
    }
    .cta-form input {
      background: #1a1a24;
      border: 1px solid var(--primary);
      padding: 14px 20px;
      border-radius: 40px;
      color: #fff;
      width: 280px;
      outline: none;
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--accent), #fbbf24);
      border: none;
      padding: 14px 36px;
      border-radius: 40px;
      font-weight: 700;
      color: #0a0a0f;
      box-shadow: 0 0 24px rgba(245,158,11,0.7);
      cursor: pointer;
    }

    footer {
      background: #0A0A0F;
      border-top: 1px solid var(--primary);
      padding: 48px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 32px;
    }

    @media (max-width: 1024px) {
      .features-grid { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: block; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      section { padding: 70px 0; }
    }