/* roulang page: index */
:root {
      --deep-teal: #0A4C4A;
      --warm-gold: #D4A373;
      --twilight-coral: #E76F51;
      --bg-warm: #FAF7F4;
      --bg-light-green: #F4F8F7;
      --text-primary: #1E2B2C;
      --text-secondary: #4A5B5C;
      --text-muted: #7A8A8B;
      --border-light: rgba(10, 76, 74, 0.08);
      --card-shadow: 0 10px 30px -10px rgba(0,0,0,0.05), 0 4px 10px -4px rgba(0,0,0,0.02);
      --card-hover-shadow: 0 20px 40px -12px rgba(0,0,0,0.08), 0 8px 16px -6px rgba(0,0,0,0.02);
      --radius-card: 24px;
      --radius-btn: 24px;
      --radius-badge: 16px;
      --radius-sm: 8px;
      --font-heading: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
      --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --transition-smooth: all 0.25s ease-in-out;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-body);
      background-color: var(--bg-warm);
      color: var(--text-primary);
      line-height: 1.7;
      margin: 0;
      overflow-x: hidden;
    }

    h1, h2, h3, .font-heading {
      font-family: var(--font-heading);
      letter-spacing: 0.5px;
    }

    h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.2;
    }
    h2 {
      font-size: 2.25rem;
      font-weight: 600;
      line-height: 1.3;
      color: var(--deep-teal);
    }
    h3 {
      font-size: 1.5rem;
      font-weight: 600;
    }
    p {
      font-weight: 400;
      color: var(--text-secondary);
      margin-bottom: 1.25rem;
    }

    .container-custom {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 导航栏 SaaS命令栏风格 */
    .navbar-custom {
      background: rgba(255, 255, 255, 0.82);
      backdrop-filter: blur(15px);
      -webkit-backdrop-filter: blur(15px);
      box-shadow: 0 2px 12px rgba(0,0,0,0.02);
      padding: 0.8rem 0;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1030;
      transition: var(--transition-smooth);
    }
    .navbar-brand {
      font-family: var(--font-heading);
      font-size: 1.8rem;
      font-weight: 600;
      color: var(--deep-teal) !important;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      text-decoration: none;
    }
    .brand-icon {
      font-size: 2rem;
      color: var(--warm-gold);
    }
    .nav-link-custom {
      color: var(--deep-teal) !important;
      font-weight: 500;
      margin: 0 0.5rem;
      transition: var(--transition-smooth);
      font-size: 1rem;
      padding: 0.5rem 0.9rem !important;
      border-radius: 20px;
    }
    .nav-link-custom:hover {
      color: var(--warm-gold) !important;
      background: rgba(212, 163, 115, 0.08);
    }
    .btn-primary-gold {
      background: var(--warm-gold);
      border: none;
      color: white;
      font-weight: 600;
      padding: 0.6rem 2rem;
      border-radius: var(--radius-btn);
      transition: var(--transition-smooth);
      box-shadow: 0 4px 10px rgba(212, 163, 115, 0.3);
      letter-spacing: 0.3px;
    }
    .btn-primary-gold:hover {
      background: #c18d5c;
      color: white;
      transform: scale(1.02);
      box-shadow: 0 8px 18px rgba(212, 163, 115, 0.4);
    }
    .btn-outline-teal {
      border: 1.5px solid var(--deep-teal);
      color: var(--deep-teal);
      background: transparent;
      font-weight: 600;
      padding: 0.6rem 2rem;
      border-radius: var(--radius-btn);
      transition: var(--transition-smooth);
    }
    .btn-outline-teal:hover {
      background: var(--deep-teal);
      color: white;
    }
    .search-icon-decoration {
      color: var(--deep-teal);
      font-size: 1.2rem;
      margin-right: 1.2rem;
      cursor: default;
      opacity: 0.7;
    }
    .lang-switch {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-right: 1rem;
      font-weight: 500;
    }

    /* Hero区域 */
    .hero-section {
      background: linear-gradient(135deg, #F4F8F7 0%, #FAF7F4 100%);
      padding: 160px 0 100px;
      position: relative;
      overflow: hidden;
    }
    .hero-title {
      color: var(--deep-teal);
      font-size: 3.2rem;
    }
    .hero-sub {
      color: var(--text-secondary);
      font-size: 1.2rem;
      max-width: 540px;
    }
    .hero-img-container {
      position: relative;
      border-radius: 48px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 380px;
      width: 100%;
    }
    .floating-badge {
      position: absolute;
      bottom: 20px;
      right: 20px;
      background: rgba(255,255,255,0.9);
      backdrop-filter: blur(8px);
      border-radius: 40px;
      padding: 0.5rem 1.4rem;
      font-weight: 600;
      color: var(--deep-teal);
      box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    }

    /* 通用板块 */
    .section-padding {
      padding: 100px 0;
    }
    .card-solution {
      background: white;
      border: none;
      border-radius: var(--radius-card);
      padding: 2.5rem 2rem;
      box-shadow: var(--card-shadow);
      transition: var(--transition-smooth);
      height: 100%;
    }
    .card-solution:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-hover-shadow);
    }
    .icon-gold-circle {
      background: linear-gradient(135deg, #D4A373 0%, #e9c891 100%);
      width: 60px;
      height: 60px;
      border-radius: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.8rem;
      margin-bottom: 1.8rem;
    }
    .data-badge {
      background: rgba(10, 76, 74, 0.05);
      color: var(--deep-teal);
      font-weight: 600;
      border-radius: 30px;
      padding: 0.3rem 1.2rem;
      font-size: 0.9rem;
      display: inline-block;
    }

    .stats-number {
      font-size: 3.5rem;
      font-weight: 700;
      color: var(--twilight-coral);
      line-height: 1.1;
    }
    .testimonial-card {
      background: var(--bg-light-green);
      border-radius: var(--radius-card);
      padding: 2rem;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-light);
    }
    .faq-item {
      background: white;
      border-radius: var(--radius-btn);
      margin-bottom: 16px;
      border: 1px solid var(--border-light);
    }
    .faq-button {
      background: white;
      width: 100%;
      text-align: left;
      padding: 1.2rem 2rem;
      font-weight: 600;
      color: var(--deep-teal);
      border: none;
      border-radius: var(--radius-btn);
      transition: 0.2s;
    }
    .faq-button:hover {
      color: var(--warm-gold);
    }
    .faq-button[aria-expanded="true"] {
      color: var(--warm-gold);
      background: #FFFBF5;
    }

    .cta-banner {
      background: linear-gradient(135deg, #0A4C4A 0%, #083F3D 100%);
      border-radius: 48px;
      padding: 70px 40px;
      text-align: center;
      color: white;
    }
    .footer-dark {
      background: #052524;
      color: #B7C4C3;
    }
    .footer-dark a {
      color: #D4E0DF;
      text-decoration: none;
    }
    .footer-dark a:hover {
      color: var(--warm-gold);
    }

    @media (max-width: 992px) {
      h1 { font-size: 2.4rem; }
      .hero-section { padding: 140px 0 70px; }
      .navbar-collapse { background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); padding: 1rem; border-radius: 24px; margin-top: 10px; }
    }
    @media (max-width: 768px) {
      h1 { font-size: 2rem; }
      h2 { font-size: 1.8rem; }
    }