/* roulang page: index */
:root {
      --primary: #0A0E27;
      --primary-light: #1A1145;
      --accent: #E84855;
      --accent-hover: #ff6b6b;
      --data-green: #00D4AA;
      --gold: #F5A623;
      --white: #FFFFFF;
      --gray-light: #F4F6FA;
      --gray-border: #E5E7EB;
      --text-dark: #1F2937;
      --text-secondary: #6B7280;
      --card-radius: 16px;
      --btn-radius: 8px;
      --badge-radius: 50px;
      --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
      --shadow-hover: 0 8px 24px rgba(0,0,0,0.10);
      --shadow-dark: 0 4px 20px rgba(0,0,0,0.30);
      --font-data: "Inter", "SF Mono", "DIN Alternate", monospace;
      --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
      --transition: all 0.25s ease;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--gray-light);
      color: var(--text-dark);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 导航 */
    .main-nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(10, 14, 39, 0.75);
      backdrop-filter: blur(12px);
      transition: var(--transition);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .main-nav.scrolled {
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(16px);
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      border-bottom: 1px solid var(--gray-border);
    }

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

    .logo {
      font-weight: 700;
      font-size: 1.4rem;
      letter-spacing: 0.5px;
      color: #fff;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }
    .main-nav.scrolled .logo {
      color: var(--primary);
    }
    .logo span {
      background: var(--accent);
      padding: 2px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
      color: #fff;
    }
    .main-nav.scrolled .logo span {
      background: var(--accent);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-links a {
      text-decoration: none;
      color: rgba(255,255,255,0.8);
      font-weight: 500;
      font-size: 0.95rem;
      transition: var(--transition);
      position: relative;
    }
    .main-nav.scrolled .nav-links a {
      color: var(--text-dark);
    }
    .nav-links a:hover {
      color: #fff;
    }
    .main-nav.scrolled .nav-links a:hover {
      color: var(--accent);
    }

    .cta-btn {
      background: var(--accent);
      color: #fff !important;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(232,72,85,0.4);
    }
    .cta-btn:hover {
      background: #ff6b6b;
      transform: translateY(-1px);
    }

    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(20px);
      border-top: 1px solid var(--gray-border);
      z-index: 999;
      padding: 8px 12px;
      justify-content: space-around;
      box-shadow: 0 -4px 12px rgba(0,0,0,0.02);
    }
    .mobile-nav-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 0.7rem;
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 500;
    }
    .mobile-nav-item i {
      font-size: 1.3rem;
      margin-bottom: 2px;
    }
    .mobile-nav-item.active {
      color: var(--accent);
    }

    /* Hero */
    .hero {
      background: linear-gradient(135deg, #0A0E27 0%, #1A1145 50%, #0D1B3E 100%);
      position: relative;
      padding: 160px 0 100px;
      overflow: hidden;
      color: #fff;
      min-height: 100vh;
      display: flex;
      align-items: center;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      mix-blend-mode: overlay;
    }
    .hero-grid {
      position: relative;
      z-index: 2;
    }
    .hero-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-left h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 1.2rem;
    }
    .hero-sub {
      font-size: 1.2rem;
      opacity: 0.85;
      margin-bottom: 2rem;
    }
    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 2.5rem;
    }
    .btn-primary {
      background: linear-gradient(135deg, #E84855, #FF6B6B);
      border: none;
      color: #fff;
      padding: 14px 32px;
      border-radius: 8px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
      display: inline-block;
    }
    .btn-outline {
      border: 1px solid rgba(255,255,255,0.5);
      background: transparent;
      color: #fff;
      padding: 14px 32px;
      border-radius: 8px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
    }
    .countdown {
      display: flex;
      gap: 20px;
      font-family: var(--font-data);
    }
    .count-item {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(10px);
      padding: 12px 20px;
      border-radius: 12px;
      text-align: center;
    }
    .count-num {
      font-size: 2.5rem;
      font-weight: 700;
      color: #fff;
    }
    .live-card {
      background: rgba(20,20,50,0.7);
      backdrop-filter: blur(16px);
      border-radius: 24px;
      padding: 28px;
      border: 1px solid rgba(255,255,255,0.15);
    }
    .live-badge {
      background: var(--data-green);
      color:#000;
      padding: 4px 14px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.8rem;
      display: inline-block;
    }
    .score-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 20px 0;
      font-size: 2.4rem;
      font-weight: 700;
    }
    .vs-text {
      color: var(--accent);
    }
    .progress-bar {
      height: 6px;
      background: rgba(255,255,255,0.2);
      border-radius: 10px;
      margin: 12px 0;
    }
    .progress-fill {
      width: 67%;
      height: 100%;
      background: var(--data-green);
      border-radius: 10px;
    }

    section {
      padding: 80px 0;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 2rem;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .decor-line {
      width: 5px;
      height: 28px;
      background: var(--accent);
      border-radius: 4px;
      display: inline-block;
    }

    .dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 24px;
    }
    .stat-card {
      background: #fff;
      border-radius: 16px;
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .stat-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .stat-number {
      font-family: var(--font-data);
      font-size: 2.6rem;
      font-weight: 700;
      color: var(--primary);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 24px;
    }
    .service-card {
      background: #fff;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .service-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }
    .service-body {
      padding: 20px;
    }
    .badge {
      background: var(--data-green);
      color: #000;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.7rem;
      font-weight: 600;
      display: inline-block;
    }

    .compare-wrapper {
      background: linear-gradient(135deg,#0A0E27,#1A1145);
      border-radius: 24px;
      padding: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #fff;
    }
    .team-data p { margin: 8px 0; }

    .faq-item {
      border-bottom: 1px solid var(--gray-border);
      padding: 16px 0;
    }
    .faq-question {
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #0A0E27;
      border-radius: 24px;
      padding: 40px;
      color: #fff;
    }
    .footer {
      background: #fff;
      padding: 40px 0 20px;
      border-top: 1px solid var(--gray-border);
    }

    @media (max-width: 1024px) {
      .hero-content { grid-template-columns: 1fr; }
      .dashboard-grid { grid-template-columns: repeat(2,1fr); }
      .services-grid { grid-template-columns: repeat(2,1fr); }
      .compare-wrapper { flex-direction: column; }
    }
    @media (max-width: 640px) {
      .nav-links { display: none; }
      .mobile-bottom-nav { display: flex; }
      .hero { padding: 120px 0 60px; }
      .dashboard-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
    }