/* roulang page: index */
@import url('/assets/css/vendor/7d0d260fcb-all.min.css');

    :root {
      --deep-purple: #1a0f2e;
      --amber: #e8a850;
      --nebula: #6b3fa0;
      --warm-gray: #f5f0eb;
      --text-light: #e0dcd5;
      --pure-black: #0d0d0d;
      --card-bg: #1e1e32;
      --card-hover: #2a2a48;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-card: rgba(255, 255, 255, 0.06);
      --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.4);
      --radius-md: 12px;
      --radius-btn: 8px;
      --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
      background-color: var(--deep-purple);
      color: var(--text-light);
      line-height: 1.7;
      font-weight: 400;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 16px;
      padding-right: 16px;
    }

    @media (min-width: 1024px) {
      .container {
        padding-left: 32px;
        padding-right: 32px;
      }
    }

    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 64px;
      background: rgba(13, 13, 13, 0.75);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-subtle);
      z-index: 1000;
      display: flex;
      align-items: center;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .logo {
      font-weight: 700;
      font-size: 1.5rem;
      color: white;
      text-decoration: none;
      letter-spacing: 1px;
      background: linear-gradient(135deg, #fff, var(--amber));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }

    .nav-links a {
      color: var(--text-light);
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s, text-shadow 0.2s;
      position: relative;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--amber);
      transition: width 0.2s ease;
    }

    .nav-links a:hover {
      color: var(--amber);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .mega-trigger {
      position: relative;
    }

    .mega-panel {
      position: absolute;
      top: 40px;
      right: 0;
      background: #1a1a2e;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 16px;
      padding: 24px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      width: 580px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all 0.25s ease;
      pointer-events: none;
      z-index: 200;
    }

    .mega-trigger:hover .mega-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
      pointer-events: auto;
    }

    .mega-card {
      background: #252540;
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      transition: all 0.2s;
      border: 1px solid transparent;
      text-decoration: none;
      color: var(--text-light);
    }

    .mega-card:hover {
      border-color: var(--amber);
      transform: translateY(-4px);
      background: #2f2f4a;
    }

    .mega-card i {
      color: var(--amber);
      font-size: 1.3rem;
    }

    .mega-card span {
      font-weight: 600;
      font-size: 0.9rem;
    }

    .mega-card small {
      font-size: 0.7rem;
      color: #aaa;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }

    .hamburger div {
      width: 24px;
      height: 2px;
      background: var(--text-light);
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .mobile-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: #1a1a2e;
        flex-direction: column;
        padding: 24px;
        gap: 20px;
      }
      .mobile-menu.active {
        display: flex;
      }
    }

    /* Hero */
    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      background: radial-gradient(circle at 30% 40%, #2a1a4a, #0d0d1a 80%);
      position: relative;
      overflow: hidden;
      margin-top: 64px;
    }

    .hero::before {
      content: "";
      position: absolute;
      width: 100%;
      height: 100%;
      background: radial-gradient(2px 2px at 15% 20%, white, transparent 80%),
                  radial-gradient(2px 2px at 85% 30%, white, transparent 70%),
                  radial-gradient(1px 1px at 45% 70%, white, transparent 90%),
                  radial-gradient(3px 3px at 70% 15%, rgba(232,168,80,0.7), transparent 70%);
      background-size: 200px 200px, 150px 150px, 250px 250px, 180px 180px;
      animation: twinkle 4s infinite alternate;
    }

    @keyframes twinkle {
      0% { opacity: 0.6; }
      100% { opacity: 1; }
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.3;
    }

    .hero .subtitle {
      font-size: 1.3rem;
      color: #ccc;
      margin: 24px 0 32px;
    }

    .stat-badge {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(10px);
      border-radius: 16px;
      padding: 20px 28px;
      display: flex;
      gap: 40px;
      margin: 32px 0;
      border: 1px solid rgba(255,255,255,0.1);
      color: white;
    }

    .counter {
      font-family: var(--font-mono);
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--amber);
    }

    .btn-primary {
      background: var(--amber);
      color: var(--pure-black);
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      text-decoration: none;
      display: inline-block;
      transition: box-shadow 0.2s, transform 0.2s;
      border: none;
      cursor: pointer;
    }

    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(232,168,80,0.7);
      transform: translateY(-2px);
    }

    .btn-outline {
      border: 1.5px solid var(--amber);
      color: var(--amber);
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      background: transparent;
      font-weight: 600;
      transition: 0.2s;
      text-decoration: none;
    }

    .btn-outline:hover {
      background: linear-gradient(135deg, var(--amber), var(--nebula));
      color: white;
      border-color: transparent;
    }

    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2rem;
      }
      .stat-badge {
        flex-wrap: wrap;
        gap: 16px;
      }
    }

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

    .section-title {
      font-size: 2.2rem;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-card);
      overflow: hidden;
      transition: all 0.25s;
    }

    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-card);
    }

    .service-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .service-stack {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    @media (max-width: 768px) {
      .grid-3, .service-grid {
        grid-template-columns: 1fr;
      }
    }

    .faq-item {
      background: #252540;
      border-radius: 12px;
      margin-bottom: 12px;
      transition: 0.2s;
    }

    .faq-question {
      padding: 20px;
      display: flex;
      align-items: center;
      gap: 16px;
      font-weight: 600;
      cursor: pointer;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #2a2a48;
      padding: 0 20px;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 20px;
    }