/* roulang page: index */
@import url('/assets/css/vendor/7d0d260fcb-all.min.css');
    
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --primary-black: #1A1A1A;
      --accent-orange: #E94E1B;
      --secondary-charcoal: #2B2B2B;
      --warm-white: #F5F5F0;
      --mint-green: #00B388;
      --body-bg: #FAFAF7;
      --card-bg: #FFFFFF;
      --card-shadow: 0 4px 20px rgba(0,0,0,0.06);
      --card-hover-shadow: 0 12px 32px rgba(233,78,27,0.12);
      --border-light: rgba(0,0,0,0.04);
      --text-primary: #3A3A3A;
      --text-muted: #6B6B6B;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-pill: 20px;
      --transition: all 0.25s ease;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
      background-color: var(--body-bg);
      color: var(--text-primary);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, .font-heading {
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .inter-number {
      font-family: 'Inter', 'Roboto', sans-serif;
    }

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

    /* 胶囊导航 */
    #nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 50;
      transition: var(--transition);
      background: rgba(245,245,240,0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0,0,0,0.04);
    }

    .nav-container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo-text {
      font-weight: 800;
      font-size: 1.8rem;
      color: var(--primary-black);
      letter-spacing: -0.02em;
      line-height: 1;
    }

    .desktop-nav-capsules {
      display: flex;
      gap: 8px;
      align-items: center;
    }

    .nav-capsule {
      padding: 8px 18px;
      border-radius: var(--radius-pill);
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-primary);
      background: rgba(0,0,0,0.03);
      transition: var(--transition);
      text-decoration: none;
      white-space: nowrap;
    }

    .nav-capsule:hover {
      background: var(--accent-orange);
      color: white;
      transform: translateY(-1px);
    }

    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 50;
      background: rgba(26,26,26,0.9);
      backdrop-filter: blur(20px);
      border-radius: 24px 24px 0 0;
      padding: 8px 16px 12px;
      box-shadow: 0 -8px 24px rgba(0,0,0,0.2);
    }

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

    .mobile-nav-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: rgba(255,255,255,0.7);
      font-size: 0.7rem;
      font-weight: 500;
      text-decoration: none;
      transition: var(--transition);
      gap: 4px;
    }

    .mobile-nav-item i {
      font-size: 1.3rem;
    }

    .mobile-nav-item:hover, .mobile-nav-item.active-mobile {
      color: var(--accent-orange);
    }

    /* 区块间距 */
    section {
      padding-top: 100px;
      padding-bottom: 100px;
    }

    @media (max-width: 1023px) {
      section {
        padding-top: 80px;
        padding-bottom: 80px;
      }
    }

    @media (max-width: 639px) {
      section {
        padding-top: 60px;
        padding-bottom: 60px;
      }
      .desktop-nav-capsules {
        display: none;
      }
      .mobile-bottom-nav {
        display: block;
      }
      body {
        padding-bottom: 80px;
      }
      .nav-container {
        height: 64px;
      }
    }

    @media (min-width: 640px) {
      .mobile-bottom-nav {
        display: none;
      }
    }

    .container-custom {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .btn-primary {
      background: var(--accent-orange);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-md);
      padding: 14px 32px;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      transition: var(--transition);
      display: inline-block;
      text-align: center;
      font-family: 'Inter', sans-serif;
      box-shadow: 0 4px 12px rgba(233,78,27,0.25);
      letter-spacing: 0.3px;
    }

    .btn-primary:hover {
      transform: scale(1.03);
      box-shadow: 0 10px 24px rgba(233,78,27,0.4);
    }

    .btn-secondary {
      background: transparent;
      color: var(--accent-orange);
      font-weight: 600;
      border: 2px solid var(--accent-orange);
      border-radius: var(--radius-md);
      padding: 14px 32px;
      font-size: 1rem;
      cursor: pointer;
      transition: var(--transition);
      display: inline-block;
      text-align: center;
    }

    .btn-secondary:hover {
      background: rgba(233,78,27,0.06);
    }

    .card-hover {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
    }

    .card-hover:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-hover-shadow);
      border-color: rgba(233,78,27,0.2);
    }

    .pain-card {
      display: flex;
      align-items: center;
      gap: 32px;
      background: #F5F5F0;
      border-radius: 24px;
      padding: 24px;
      margin-bottom: 28px;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .pain-card:hover {
      border-color: var(--accent-orange);
    }
    @media (max-width: 640px) {
      .pain-card {
        flex-direction: column;
      }
    }