/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary: #FF6A00;
      --primary-glow: rgba(255,106,0,0.5);
      --secondary: #0B0C10;
      --accent: #00F0FF;
      --text-main: #E0E0E0;
      --text-muted: #9E9E9E;
      --card-bg: #1A1A1E;
      --border-dim: rgba(255,255,255,0.08);
      --border-hover: rgba(255,106,0,0.5);
      --radius-sm: 6px;
      --radius-md: 8px;
      --shadow-glow: 0 8px 30px rgba(255,106,0,0.15);
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--secondary);
      color: var(--text-main);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    /* 自定义滚动条 */
    ::-webkit-scrollbar {
      width: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #0B0C10;
    }
    ::-webkit-scrollbar-thumb {
      background: #FF6A00;
      border-radius: 3px;
    }

    /* 导航栏 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      height: 72px;
      background: rgba(11, 12, 16, 0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255,255,255,0.05);
      transition: background 0.3s ease;
    }
    .navbar.scrolled {
      background: rgba(11, 12, 16, 0.95);
    }
    .logo-text {
      font-weight: 900;
      font-size: 1.8rem;
      letter-spacing: -0.5px;
      color: var(--primary);
      text-shadow: 0 0 10px rgba(255,106,0,0.4);
      line-height: 1;
    }
    .nav-link {
      color: var(--text-muted);
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s, text-decoration 0.2s;
      text-underline-offset: 4px;
      text-decoration: none;
    }
    .nav-link:hover {
      color: var(--primary);
      text-decoration: underline;
    }
    .btn-primary {
      background: linear-gradient(135deg, #FF6A00, #E05500);
      color: white;
      border: none;
      padding: 0.6rem 1.5rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: all 0.3s ease;
      box-shadow: 0 4px 12px rgba(255,106,0,0.3);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      letter-spacing: 0.3px;
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      box-shadow: 0 0 20px var(--primary-glow);
      transform: translateY(-1px);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
      padding: 0.6rem 1.5rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .btn-outline:hover {
      background: rgba(255,106,0,0.1);
      box-shadow: 0 0 15px rgba(255,106,0,0.2);
    }
    .badge-pulse {
      background: #FF3333;
      color: white;
      font-size: 0.7rem;
      padding: 0.2rem 0.6rem;
      border-radius: 20px;
      margin-left: 6px;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.7; transform: scale(1.05); }
      100% { opacity: 1; transform: scale(1); }
    }

    /* 英雄区粒子效果模拟 */
    .hero-section {
      min-height: 90vh;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      display: flex;
      align-items: center;
      padding-top: 72px;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 30% 40%, rgba(11,12,16,0.4) 0%, rgba(11,12,16,0.85) 90%);
    }
    .scanline {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: repeating-linear-gradient(0deg, rgba(0,240,255,0.02) 0px, rgba(0,240,255,0.02) 2px, transparent 2px, transparent 6px);
      pointer-events: none;
    }
    .data-float {
      background: rgba(26,26,30,0.8);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-md);
      padding: 1rem 1.5rem;
      color: var(--accent);
      font-weight: 700;
      font-size: 1.8rem;
      font-family: 'Inter', monospace;
    }

    /* 卡片通用 */
    .card-glow {
      background: var(--card-bg);
      border: 1px solid var(--border-dim);
      border-radius: var(--radius-md);
      transition: all 0.3s ease;
    }
    .card-glow:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-glow);
      transform: translateY(-4px);
    }

    /* 指标数字跳动 */
    .counter {
      font-family: 'Inter', monospace;
      font-weight: 700;
      color: var(--accent);
      font-size: 2.5rem;
      line-height: 1.2;
    }

    /* 对比进度条 */
    .progress-bar {
      height: 8px;
      border-radius: 4px;
      background: #2A2A2E;
      width: 100%;
    }
    .progress-fill {
      height: 8px;
      border-radius: 4px;
      background: var(--primary);
      width: 0%;
      transition: width 1.2s ease;
    }
    .progress-fill.accent {
      background: var(--accent);
    }

    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid var(--border-dim);
    }
    .faq-question {
      cursor: pointer;
      padding: 1.2rem 0;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.2s;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      color: var(--text-muted);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 1.2rem;
    }
    .faq-icon {
      transition: transform 0.3s;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 输入框 */
    .input-field {
      background: #0B0C10;
      border: 1px solid rgba(255,255,255,0.1);
      color: white;
      padding: 0.8rem 1rem;
      border-radius: var(--radius-sm);
      width: 100%;
      transition: border 0.2s;
    }
    .input-field:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 10px rgba(255,106,0,0.2);
    }