/* roulang page: index */
:root {
      --primary: #00E5FF;
      --primary-glow: rgba(0, 229, 255, 0.6);
      --secondary: #1E0A3C;
      --accent: #39FF14;
      --bg-deep: #0B0B2B;
      --text-primary: #E0E0E0;
      --text-secondary: #9E9E9E;
      --card-bg: rgba(255, 255, 255, 0.04);
      --card-border: rgba(255, 255, 255, 0.08);
      --glass-blur: blur(20px);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      --transition: 0.3s ease;
    }

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

    body {
      font-family: var(--font-sans);
      background: var(--bg-deep);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      background-image: linear-gradient(135deg, #1E0A3C 0%, #0B0B2B 100%);
      background-attachment: fixed;
    }

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

    /* 导航 */
    #header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(10, 10, 30, 0.7);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.3);
      z-index: 100;
      display: flex;
      align-items: center;
      transition: background 0.3s;
    }

    #header.scrolled {
      background: rgba(10, 10, 30, 0.9);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      height: 36px;
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      letter-spacing: 1px;
      text-decoration: none;
    }
    .logo span {
      background: linear-gradient(135deg, var(--primary), #6ef5ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-primary);
      text-decoration: none;
      transition: color 0.2s;
      position: relative;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    .btn-primary {
      background: var(--primary);
      color: #0B0B2B;
      font-weight: 700;
      padding: 10px 24px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      border: none;
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
      transition: all var(--transition);
      display: inline-block;
      letter-spacing: 0.5px;
    }
    .btn-primary:hover {
      background: #33EAFF;
      box-shadow: 0 0 35px rgba(0, 229, 255, 0.8);
      transform: translateY(-1px);
    }

    .btn-ghost {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      transition: all var(--transition);
      display: inline-block;
    }
    .btn-ghost:hover {
      background: rgba(0, 229, 255, 0.1);
      box-shadow: 0 0 18px rgba(0, 229, 255, 0.4);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
    }
    .hamburger span {
      width: 24px;
      height: 2px;
      background: #E0E0E0;
      transition: 0.3s;
    }

    /* 玻璃卡片规范 */
    .glass-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: all var(--transition);
    }
    .glass-card:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(0, 229, 255, 0.3);
      transform: translateY(-4px);
    }

    h1 {
      font-size: 48px;
      font-weight: 800;
      line-height: 1.2;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: #FFFFFF;
      margin-bottom: 16px;
      position: relative;
    }
    .section-title {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      margin-bottom: 48px;
    }
    .section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 3px;
      background: var(--primary);
      margin-top: 12px;
      box-shadow: 0 0 12px var(--primary);
    }

    .section {
      padding: 100px 0;
    }

    /* 首屏 */
    #hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }
    .hero-bg {
      position: absolute;
      right: 0;
      top: 0;
      width: 55%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.45;
      mask-image: linear-gradient(to left, rgba(0,0,0,0.8), transparent);
      -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8), transparent);
    }
    .hero-content {
      position: relative;
      max-width: 650px;
      z-index: 2;
    }

    /* 数据看板背景 */
    .bg-grid {
      background-image: radial-gradient(rgba(255,255,255,0.1) 1px, transparent 1px);
      background-size: 30px 30px;
    }

    /* 星级 */
    .stars {
      color: var(--accent);
      letter-spacing: 2px;
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .faq-question {
      font-size: 16px;
      font-weight: 700;
      padding: 20px 0;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      font-size: 14px;
      color: #BDBDBD;
      line-height: 1.6;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 20px;
    }
    .faq-icon {
      font-size: 18px;
      color: var(--primary);
    }

    @media (max-width: 1024px) {
      h1 { font-size: 40px; }
      .nav-links { gap: 20px; }
    }
    @media (max-width: 768px) {
      .hamburger { display: flex; }
      .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        height: calc(100vh - 72px);
        background: rgba(10, 10, 30, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding-left: 40px;
        gap: 28px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
      }
      .nav-links.open {
        transform: translateX(0);
      }
      .nav-links a { font-size: 18px; }
      #hero { flex-direction: column; text-align: center; }
      .hero-bg { width: 100%; opacity: 0.3; }
      .hero-content { max-width: 100%; align-items: center; }
      h1 { font-size: 36px; }
      h2 { font-size: 26px; }
      .section { padding: 60px 0; }
    }

@keyframes pulse {
      0% { box-shadow: 0 0 20px rgba(0,229,255,0.5); }
      50% { box-shadow: 0 0 40px rgba(0,229,255,0.9); }
      100% { box-shadow: 0 0 20px rgba(0,229,255,0.5); }
    }
    @media (max-width: 768px) {
      #results > div > div { grid-template-columns: 1fr; }
    }
    img { max-width: 100%; height: auto; display: block; }