/* roulang page: index */
/* 设计变量与全局重置 */
    :root {
      --primary: #00E676;
      --primary-dark: #00C853;
      --accent: #FFB300;
      --bg-deep: #0D0618;
      --bg-card: rgba(20, 35, 30, 0.6);
      --glass-border: rgba(0, 230, 118, 0.25);
      --text-white: #FFFFFF;
      --text-light: #B0C4B1;
      --text-muted: #6B7F6C;
      --radius-card: 20px;
      --radius-btn: 50px;
      --shadow-card: 0 8px 32px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.05);
      --shadow-glow: 0 0 24px rgba(0,230,118,0.5);
      --font-heading: 'Inter', 'Rajdhani', '思源黑体', sans-serif;
      --font-body: 'Inter', '思源黑体', sans-serif;
    }

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

    body {
      font-family: var(--font-body);
      background: radial-gradient(circle at 20% 0%, #0D1420, #0D0618 80%, #0A1A14);
      color: var(--text-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 40px;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    button, .btn {
      cursor: pointer;
      font-family: var(--font-body);
      border: none;
      outline: none;
      transition: all 0.3s ease;
    }

    /* 导航栏 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(10, 5, 20, 0.8);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(0, 230, 118, 0.3);
      transition: background 0.3s ease, border-color 0.3s;
    }

    .header.scrolled {
      background: rgba(8, 3, 16, 0.95);
      border-bottom-color: rgba(0, 230, 118, 0.6);
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 1.8rem;
      font-weight: 700;
      background: linear-gradient(135deg, #00E676, #00C853);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: 1px;
      font-family: var(--font-heading);
    }
    .logo-icon {
      font-size: 2rem;
      filter: drop-shadow(0 0 6px #00E676);
    }

    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
      font-weight: 500;
      color: #B0C4B1;
    }
    .nav-links a {
      padding: 8px 0;
      border-bottom: 2px solid transparent;
    }
    .nav-links a:hover, .nav-links a.active {
      color: #fff;
      border-bottom-color: var(--primary);
    }

    .nav-cta {
      background: linear-gradient(135deg, #00E676, #00C853);
      color: #0A1A14;
      font-weight: 700;
      border-radius: 50px;
      padding: 10px 24px;
      box-shadow: 0 0 16px rgba(0,230,118,0.4);
      border: none;
      font-size: 0.9rem;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: #00E676;
      font-size: 2rem;
    }

    /* 移动端底部导航 */
    .bottom-nav {
      display: none;
    }

    @media (max-width: 768px) {
      .nav-links, .nav-cta.desktop-only {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .header .container {
        padding: 0 20px;
      }
      .bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: rgba(10, 5, 20, 0.9);
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(0,230,118,0.4);
        justify-content: space-around;
        padding: 12px 10px;
        z-index: 1000;
        font-size: 0.75rem;
        color: #B0C4B1;
      }
      .bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        color: inherit;
      }
      .bottom-nav i {
        font-size: 1.4rem;
      }
    }

    /* Hero 区块 */
    .hero {
      padding: 140px 0 100px;
      display: flex;
      align-items: center;
      gap: 50px;
      min-height: 90vh;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
    }
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(13,6,24,0.85) 40%, rgba(10,26,20,0.5));
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      flex: 1;
    }
    .hero h1 {
      font-size: 3.5rem;
      font-weight: 900;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 20px;
      font-family: var(--font-heading);
    }
    .highlight {
      background: linear-gradient(135deg, #00E676, #FFB300);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-sub {
      font-size: 1.25rem;
      color: #B0C4B1;
      margin-bottom: 32px;
      max-width: 500px;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, #00E676, #00C853);
      color: #0A1A14;
      font-weight: 700;
      border-radius: 50px;
      padding: 14px 36px;
      box-shadow: 0 0 24px rgba(0,230,118,0.5);
      font-size: 1rem;
    }
    .btn-primary:hover {
      transform: scale(1.06);
      box-shadow: 0 0 40px rgba(0,230,118,0.8);
      background: linear-gradient(135deg, #FFB300, #00C853);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid #00E676;
      color: #00E676;
      font-weight: 600;
      border-radius: 50px;
      padding: 14px 36px;
    }
    .btn-outline:hover {
      background: rgba(0,230,118,0.1);
      box-shadow: 0 0 20px rgba(0,230,118,0.6);
    }
    .hero-visual {
      flex: 1;
      position: relative;
      z-index: 2;
      display: flex;
      justify-content: center;
    }
    .hero-img-placeholder {
      width: 100%;
      max-width: 500px;
      border-radius: 24px;
      box-shadow: 0 0 40px rgba(0,230,118,0.25);
    }

    @media (max-width: 1024px) {
      .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 20px 80px;
      }
      .hero h1 {
        font-size: 2.8rem;
      }
      .btn-group {
        justify-content: center;
      }
    }

    /* 通用板块 */
    section {
      padding: 100px 0;
    }
    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      color: #fff;
      text-align: center;
      margin-bottom: 16px;
    }
    .section-sub {
      text-align: center;
      color: #B0C4B1;
      margin-bottom: 60px;
      font-size: 1.1rem;
    }

    /* 亮点网格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(18px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(0,230,118,0.6);
      transform: translateY(-6px);
      box-shadow: 0 16px 48px rgba(0,230,118,0.15);
    }
    .icon-circle {
      width: 48px;
      height: 48px;
      background: rgba(0,230,118,0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.6rem;
      margin-bottom: 20px;
    }
    .card-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    /* 数据看板 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-card {
      background: rgba(15, 30, 25, 0.7);
      backdrop-filter: blur(14px);
      border-radius: 24px;
      padding: 24px;
      text-align: center;
      border: 1px solid rgba(0,230,118,0.2);
    }
    .stat-number {
      font-family: 'Rajdhani', sans-serif;
      font-size: 3rem;
      font-weight: 700;
      color: #FFB300;
      text-shadow: 0 0 18px rgba(255,179,0,0.6);
    }

    /* 战队瀑布流 */
    .roster-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .roster-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--glass-border);
    }
    .roster-img {
      height: 180px;
      background-size: cover;
      background-position: center;
      position: relative;
    }
    .roster-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(transparent 60%, rgba(0,0,0,0.7));
      transition: 0.3s;
    }
    .roster-card:hover .roster-img::after {
      background: rgba(0,230,118,0.3);
    }
    .roster-body {
      padding: 20px;
    }
    .tag {
      display: inline-block;
      border: 1px solid #00E676;
      color: #00E676;
      border-radius: 30px;
      padding: 4px 14px;
      font-size: 0.8rem;
      margin-right: 8px;
    }

    /* 对比表 */
    .compare-table {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
      background: rgba(20,35,30,0.5);
      backdrop-filter: blur(12px);
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--glass-border);
    }
    .plan {
      padding: 32px;
      text-align: center;
    }
    .plan.popular {
      border: 2px solid #FFB300;
      box-shadow: 0 0 28px rgba(255,179,0,0.3);
      border-radius: 20px;
      position: relative;
    }
    .badge {
      background: #FFB300;
      color: #0A1A14;
      padding: 4px 12px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.8rem;
    }

    /* FAQ */
    .faq-item {
      border-left: 3px solid #00E676;
      margin-bottom: 20px;
      padding-left: 20px;
      transition: 0.2s;
      background: rgba(20,35,30,0.3);
      border-radius: 0 12px 12px 0;
      padding: 16px;
    }
    .faq-question {
      font-weight: 700;
      color: #fff;
      font-size: 1.2rem;
    }

    /* CTA */
    .cta-block {
      background: rgba(15, 30, 25, 0.7);
      backdrop-filter: blur(20px);
      border-radius: 28px;
      text-align: center;
      padding: 60px;
      border: 1px solid rgba(0,230,118,0.4);
    }

    footer {
      border-top: 1px solid #00E676;
      padding: 40px 0 20px;
      color: #6B7F6C;
    }

    @media (max-width: 768px) {
      .container { padding: 0 20px; }
      .advantages-grid, .stats-grid, .roster-grid, .compare-table {
        grid-template-columns: 1fr;
      }
      .hero h1 { font-size: 2.2rem; }
      .section-title { font-size: 1.8rem; }
    }