/* roulang page: index */
:root {
      --primary-deep: #0A2E1F;
      --primary-bright: #00E676;
      --accent-orange: #FF6D00;
      --bg-global: #0B0F19;
      --bg-card: #131A2B;
      --bg-input: #1A2332;
      --text-white: #FFFFFF;
      --text-body: #B0C4DE;
      --text-muted: #6B7B8D;
      --border-dim: rgba(0, 230, 118, 0.15);
      --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
      --radius-card: 12px;
      --radius-btn: 8px;
      --transition-smooth: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      --font-display: 'Orbitron', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --font-title: 'PingFang SC Bold', 'Microsoft YaHei Bold', '思源黑体 Bold', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', '思源黑体', sans-serif;
    }

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

    body {
      background-color: var(--bg-global);
      color: var(--text-body);
      font-family: var(--font-body);
      line-height: 1.8;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition-smooth);
    }

    h1, h2, h3, h4 {
      font-family: var(--font-title);
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.3;
      margin-bottom: 1rem;
    }

    .orbitron {
      font-family: var(--font-display);
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* 导航栏 */
    .geek-nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      background: rgba(10, 46, 31, 0.7);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 230, 118, 0.15);
      transition: all var(--transition-smooth);
      padding: 0.8rem 0;
    }

    .geek-nav.scrolled {
      background: rgba(10, 30, 20, 0.9);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .logo-icon {
      width: 32px;
      height: 32px;
      background: var(--primary-bright);
      mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 3L4 14h5l-1 7 9-11h-5l1-7z"/></svg>') center/contain no-repeat;
      background-color: var(--primary-bright);
    }

    .logo-text {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.4rem;
      color: var(--primary-bright);
      letter-spacing: 1px;
    }

    .nav-chips {
      display: flex;
      gap: 0.5rem;
      overflow-x: auto;
      padding: 0.25rem;
      scrollbar-width: none;
    }

    .nav-chips::-webkit-scrollbar {
      display: none;
    }

    .chip {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-body);
      padding: 0.4rem 1.2rem;
      border-radius: 20px;
      font-size: 0.9rem;
      white-space: nowrap;
      transition: all var(--transition-smooth);
      border: 1px solid transparent;
    }

    .chip:hover, .chip.active {
      background: var(--primary-bright);
      color: var(--primary-deep);
      font-weight: 600;
    }

    .nav-cta {
      background: var(--primary-bright);
      color: var(--primary-deep);
      padding: 0.5rem 1.5rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 0.9rem;
      transition: all var(--transition-smooth);
      border: none;
      cursor: pointer;
    }

    .nav-cta:hover {
      background: #1BFF8C;
      box-shadow: 0 0 16px rgba(0, 230, 118, 0.5);
    }

    .hamburger {
      display: none;
      background: transparent;
      border: none;
      color: var(--primary-bright);
      font-size: 1.8rem;
      cursor: pointer;
    }

    @media (max-width: 768px) {
      .nav-chips, .nav-cta.desktop {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .mobile-menu.active {
        display: flex;
      }
      .mobile-menu {
        display: none;
        flex-direction: column;
        background: rgba(19, 26, 43, 0.98);
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border-dim);
      }
    }

    /* Hero */
    #hero {
      padding: 140px 0 100px;
      background: radial-gradient(circle at 20% 30%, #0A2E1F20, transparent 60%);
    }

    .hero-grid {
      display: flex;
      align-items: center;
      gap: 2.5rem;
    }

    .hero-left {
      flex: 0 0 55%;
    }

    .hero-right {
      flex: 0 0 45%;
      position: relative;
    }

    .hero-image {
      clip-path: polygon(3% 0, 100% 0, 97% 100%, 0% 100%);
      border: 2px solid rgba(0, 230, 118, 0.5);
      box-shadow: 0 0 30px rgba(0, 230, 118, 0.4);
      transition: transform 0.3s;
    }

    .hero-image:hover {
      transform: scale(1.01);
    }

    .pulse-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255, 109, 0, 0.1);
      padding: 0.4rem 1rem;
      border-radius: 30px;
      margin-bottom: 1.2rem;
    }

    .pulse-dot {
      width: 10px;
      height: 10px;
      background: var(--accent-orange);
      border-radius: 50%;
      animation: pulse-glow 1.5s infinite;
    }

    @keyframes pulse-glow {
      0% { box-shadow: 0 0 0 0 rgba(255,109,0,0.7); }
      70% { box-shadow: 0 0 0 10px rgba(255,109,0,0); }
      100% { box-shadow: 0 0 0 0 rgba(255,109,0,0); }
    }

    .btn-primary {
      background: var(--primary-bright);
      color: var(--primary-deep);
      font-weight: 700;
      padding: 0.8rem 2rem;
      border-radius: var(--radius-btn);
      border: none;
      transition: all var(--transition-smooth);
      display: inline-block;
      text-align: center;
    }

    .btn-primary:hover {
      background: #1BFF8C;
      box-shadow: 0 0 20px rgba(0,230,118,0.6);
      color: #0A2E1F;
    }

    .btn-outline {
      border: 2px solid var(--primary-bright);
      color: var(--primary-bright);
      background: transparent;
      padding: 0.7rem 1.8rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: all var(--transition-smooth);
      display: inline-block;
    }

    .btn-outline:hover {
      background: rgba(0,230,118,0.1);
      box-shadow: 0 0 12px rgba(0,230,118,0.3);
    }

    @media (max-width: 1024px) {
      .hero-grid {
        flex-direction: column;
      }
      .hero-left, .hero-right {
        flex: 0 0 100%;
      }
    }

    /* 亮点网格 */
    .section-padding {
      padding: 90px 0;
    }

    .highlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-dim);
      border-radius: var(--radius-card);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: all var(--transition-smooth);
    }

    .highlight-card:hover {
      border-color: var(--primary-bright);
      box-shadow: var(--shadow-glow);
    }

    .big-number {
      font-family: var(--font-display);
      font-size: 2.8rem;
      color: var(--primary-bright);
    }

    /* 案例瀑布 */
    .waterfall {
      column-count: 3;
      column-gap: 1.5rem;
    }

    .case-card {
      break-inside: avoid;
      background: var(--bg-card);
      border-radius: var(--radius-card);
      overflow: hidden;
      margin-bottom: 1.5rem;
      transition: all var(--transition-smooth);
      border: 1px solid transparent;
    }

    .case-card:hover {
      border-color: var(--primary-bright);
      box-shadow: var(--shadow-glow);
    }

    .case-img {
      height: 200px;
      object-fit: cover;
      transition: transform 0.3s;
    }

    .case-card:hover .case-img {
      transform: scale(1.05);
    }

    @media (max-width: 768px) {
      .waterfall {
        column-count: 1;
      }
    }

    /* 对比表 */
    .compare-table {
      display: flex;
      gap: 1.5rem;
    }

    .compare-col {
      flex: 1;
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 2rem;
      border: 1px solid var(--border-dim);
    }

    .compare-col.recommended {
      border: 2px solid var(--primary-bright);
      position: relative;
    }

    .badge-recommend {
      background: var(--accent-orange);
      color: #000;
      font-weight: 700;
      padding: 0.2rem 1rem;
      border-radius: 20px;
      position: absolute;
      top: -12px;
      right: 20px;
    }

    /* FAQ */
    .accordion-title {
      background: var(--bg-card);
      border-left: 4px solid transparent;
      transition: all 0.2s;
    }

    .accordion-item.is-active .accordion-title {
      border-left-color: var(--primary-bright);
      background: #1A2332;
    }

    /* CTA 横幅 */
    .cta-banner {
      background: #0A1C11;
      background-image: radial-gradient(circle at 30% 30%, rgba(0,230,118,0.08) 1px, transparent 1px);
      background-size: 30px 30px;
    }

    /* 页脚 */
    .site-footer {
      background: #080C14;
    }