/* roulang page: index */
:root {
      --primary-deep-green: #0A1F1A;
      --primary-dark-bg: #051210;
      --accent-gold: #D4A843;
      --accent-gold-light: #E5B84C;
      --accent-gold-pale: #E8D5A3;
      --accent-red: #C0392B;
      --soft-bg: #F5F0EB;
      --white: #FFFFFF;
      --gray-dark: #2C2C2C;
      --gray-mid: #5A5A5A;
      --gray-light: #B0B0B0;
      --card-shadow-light: 0 10px 25px -8px rgba(0,0,0,0.08);
      --card-shadow-dark: 0 12px 28px -6px rgba(0,0,0,0.35);
      --border-radius-card: 16px;
      --border-radius-btn: 10px;
      --transition-smooth: all 0.25s ease;
    }

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

    body {
      font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background-color: var(--soft-bg);
      color: var(--gray-dark);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      font-family: 'Noto Sans SC', 'Inter', sans-serif;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: var(--primary-deep-green);
    }

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

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 导航栏 - 品牌活动风格 */
    .gg-nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(10, 31, 26, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--accent-gold);
      z-index: 99;
      padding: 0 24px;
      transition: var(--transition-smooth);
    }

    .nav-grid {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: 1200px;
      margin: 0 auto;
      height: 72px;
    }

    .logo-group {
      display: flex;
      flex-direction: column;
    }

    .logo-text {
      font-family: 'Noto Sans SC', sans-serif;
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--accent-gold);
      line-height: 1.2;
      letter-spacing: 0.5px;
    }

    .logo-domain {
      font-size: 0.7rem;
      color: var(--gray-light);
      letter-spacing: 0.3px;
      margin-top: -2px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 2.2rem;
      list-style: none;
    }

    .nav-links a {
      color: var(--white);
      font-weight: 500;
      font-size: 1rem;
      position: relative;
      padding: 4px 0;
    }

    .nav-links a:hover {
      color: var(--accent-gold-pale);
    }

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

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

    .nav-cta {
      background: var(--accent-red);
      color: var(--white) !important;
      padding: 10px 22px !important;
      border-radius: 30px;
      font-weight: 700;
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 10px rgba(192, 57, 43, 0.3);
      transition: var(--transition-smooth);
    }

    .nav-cta:hover {
      background: #e74c3c;
      transform: translateY(-1px);
      box-shadow: 0 8px 16px rgba(192, 57, 43, 0.4);
    }

    .badge-pulse {
      background: var(--accent-red);
      color: white;
      font-size: 0.7rem;
      padding: 2px 8px;
      border-radius: 20px;
      margin-left: 6px;
      animation: softPulse 1.8s infinite;
      font-weight: 600;
    }

    @keyframes softPulse {
      0% { opacity: 0.9; transform: scale(1); }
      50% { opacity: 1; transform: scale(1.06); background: #e74c3c; }
      100% { opacity: 0.9; transform: scale(1); }
    }

    .mobile-toggle {
      display: none;
      font-size: 1.8rem;
      color: var(--accent-gold);
      cursor: pointer;
      background: transparent;
      border: none;
    }

    /* Hero */
    .hero-section {
      background: linear-gradient(135deg, var(--primary-deep-green) 0%, #0e2f26 100%);
      position: relative;
      overflow: hidden;
      padding: 140px 0 90px;
      margin-top: 72px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
    }

    .hero-grid {
      display: flex;
      align-items: center;
      gap: 50px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
      z-index: 2;
    }

    .hero-content {
      flex: 1;
    }

    .hero-tag {
      color: var(--accent-gold);
      font-weight: 700;
      letter-spacing: 2px;
      font-size: 0.9rem;
      margin-bottom: 16px;
      display: inline-block;
      background: rgba(212, 168, 67, 0.12);
      padding: 4px 16px;
      border-radius: 30px;
    }

    .hero-content h1 {
      font-size: 3.5rem;
      color: var(--white);
      line-height: 1.2;
      margin-bottom: 20px;
      font-weight: 700;
      text-shadow: 0 4px 12px rgba(0,0,0,0.5);
    }

    .hero-sub {
      font-size: 1.2rem;
      color: var(--accent-gold-pale);
      margin-bottom: 32px;
      max-width: 500px;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: var(--accent-gold);
      color: var(--primary-deep-green);
      font-weight: 700;
      padding: 14px 36px;
      border-radius: var(--border-radius-btn);
      font-size: 1.1rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-smooth);
      box-shadow: 0 8px 18px rgba(212,168,67,0.3);
      border: none;
    }

    .btn-primary:hover {
      background: var(--accent-gold-light);
      transform: translateY(-2px);
      box-shadow: 0 14px 24px rgba(212,168,67,0.45);
      color: #0A1F1A;
    }

    .btn-ghost {
      color: var(--white);
      border-bottom: 2px solid var(--accent-gold-pale);
      padding: 8px 4px;
      font-weight: 500;
    }

    .hero-image {
      flex: 0.9;
      text-align: center;
    }

    .hero-image img {
      border-radius: 24px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
      transition: transform 0.3s ease;
    }

    /* 通用板块 */
    .section {
      padding: 90px 0;
    }

    .section-title {
      font-size: 2.5rem;
      margin-bottom: 20px;
      color: var(--primary-deep-green);
    }

    .pain-grid, .solution-grid, .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 28px;
      margin-top: 48px;
    }

    .card-dark {
      background: rgba(10, 31, 26, 0.85);
      backdrop-filter: blur(6px);
      color: white;
      padding: 32px 24px;
      border-radius: var(--border-radius-card);
      box-shadow: var(--card-shadow-dark);
    }

    .card-light {
      background: var(--white);
      padding: 32px 24px;
      border-radius: var(--border-radius-card);
      box-shadow: var(--card-shadow-light);
      border-top: 5px solid var(--accent-gold);
      transition: var(--transition-smooth);
    }

    .card-light:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 30px rgba(0,0,0,0.12);
      border-top-color: var(--accent-red);
    }

    .stats-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
      background: var(--primary-deep-green);
      border-radius: 24px;
      padding: 48px 24px;
      margin-top: 30px;
      color: white;
    }

    .stat-item {
      text-align: center;
    }

    .stat-number {
      font-family: 'Oswald', sans-serif;
      font-size: 3.2rem;
      font-weight: 700;
      color: var(--accent-gold);
    }

    .testimonial-card {
      background: white;
      border-radius: 20px;
      padding: 28px;
      display: flex;
      gap: 18px;
      align-items: flex-start;
      box-shadow: var(--card-shadow-light);
    }

    .avatar {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      object-fit: cover;
    }

    .faq-item {
      background: white;
      border-radius: 14px;
      margin-bottom: 14px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    }

    .faq-question {
      width: 100%;
      background: transparent;
      border: none;
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.1rem;
      color: var(--primary-deep-green);
      display: flex;
      justify-content: space-between;
      cursor: pointer;
    }

    .cta-final {
      background: var(--primary-deep-green);
      border-radius: 32px;
      padding: 70px 30px;
      text-align: center;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-blend-mode: overlay;
    }

    footer {
      background: var(--primary-dark-bg);
      color: #ccc;
      padding: 60px 0 30px;
    }

    @media (max-width: 1024px) {
      .hero-grid {
        flex-direction: column;
        text-align: center;
      }
      .hero-content h1 {
        font-size: 2.8rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
    }