/* roulang page: index */
@import url('/assets/css/vendor/c54648ebdb-css2.css');
    :root {
      --primary: #E43D5A;
      --secondary: #7B2FBE;
      --accent: #00E5A1;
      --dark-bg: #0A0B0F;
      --card-bg: #14161F;
      --text-light: #F5F5F7;
      --text-muted: #B0B3BF;
      --border-glow: rgba(228, 61, 90, 0.3);
      --shadow-card: 0 4px 24px rgba(228, 61, 90, 0.08);
      --shadow-hover: 0 12px 40px rgba(228, 61, 90, 0.25);
      --radius-xl: 20px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --font-title: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
      --font-mono: 'DIN', 'Courier New', monospace;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--dark-bg);
      font-family: var(--font-title);
      color: var(--text-muted);
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4 {
      color: var(--text-light);
      letter-spacing: -0.5px;
      font-weight: 700;
    }
    a, button {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      display: block;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航栏 */
    .nav-bar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(6px);
      transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
      box-shadow: 0 2px 12px rgba(0,0,0,0.02);
    }
    .nav-scrolled {
      background: rgba(10, 11, 15, 0.88);
      backdrop-filter: blur(14px);
      box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    }
    .nav-scrolled .nav-link {
      color: #fff;
      background: rgba(255,255,255,0.07);
    }
    .nav-scrolled .logo-text {
      color: #fff;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.5rem;
      color: #1A1A1A;
    }
    .logo-text {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      transition: 0.3s;
    }
    .nav-links {
      display: flex;
      gap: 6px;
      align-items: center;
    }
    .nav-link {
      padding: 8px 16px;
      border-radius: 40px;
      font-weight: 500;
      color: #2c2c2c;
      background: transparent;
      font-size: 0.95rem;
    }
    .nav-link:hover {
      background: rgba(228,61,90,0.08);
      color: var(--primary);
    }
    .cta-mini {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: white !important;
      border-radius: 40px;
      padding: 10px 22px;
      font-weight: 600;
      margin-left: 8px;
      box-shadow: 0 4px 12px rgba(228,61,90,0.3);
    }
    .cta-mini:hover {
      transform: scale(1.04);
      box-shadow: 0 8px 20px rgba(228,61,90,0.45);
    }
    /* 汉堡菜单 */
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      padding: 8px;
    }
    .hamburger span {
      width: 26px;
      height: 2.5px;
      background: #222;
      border-radius: 4px;
      transition: 0.3s;
    }
    .nav-scrolled .hamburger span {
      background: #fff;
    }
    .mobile-menu {
      display: none;
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .mobile-menu {
        display: flex;
        flex-direction: column;
        background: rgba(10,11,15,0.96);
        backdrop-filter: blur(20px);
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        padding: 28px 24px;
        gap: 16px;
        transform: translateY(-110%);
        transition: 0.4s ease;
        z-index: 40;
      }
      .mobile-menu.active {
        transform: translateY(0);
      }
      .mobile-link {
        color: #fff;
        font-size: 1.2rem;
        font-weight: 600;
        padding: 12px 8px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
      }
    }
    /* 区块间距 */
    section {
      padding: 90px 0;
    }
    @media (max-width: 768px) {
      section { padding: 60px 0; }
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: white;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: 12px;
      display: inline-block;
      box-shadow: 0 6px 18px rgba(228,61,90,0.35);
      transition: 0.25s;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      transform: scale(1.03);
      box-shadow: 0 12px 28px rgba(228,61,90,0.55);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid transparent;
      background-image: linear-gradient(135deg, var(--primary), var(--secondary));
      background-origin: border-box;
      background-clip: padding-box, border-box;
      color: transparent;
      background-clip: text;
      -webkit-background-clip: text;
      font-weight: 600;
      padding: 13px 32px;
      border-radius: 12px;
      display: inline-block;
      position: relative;
    }
    .btn-outline::before {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: 12px;
      padding: 1.5px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      mask-composite: exclude;
      pointer-events: none;
    }
    .card-glow {
      background: var(--card-bg);
      border-radius: var(--radius-xl);
      padding: 32px;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(255,255,255,0.03);
      transition: all 0.3s;
    }
    .card-glow:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(228,61,90,0.5);
      transform: translateY(-6px);
    }
    .text-accent {
      color: var(--accent);
    }
    footer {
      background: #0A0B0F;
      border-top: 1px solid rgba(255,255,255,0.06);
      padding: 60px 0 30px;
    }