/* roulang page: index */
:root {
      --primary-deep: #2D1B4E;
      --secondary-orange: #FF6B35;
      --bg-light: #F9F7FC;
      --card-bg: #FFFFFF;
      --text-main: #1E1E2F;
      --text-sub: #5A5A72;
      --gold-accent: #D4AF37;
      --success-green: #00A86B;
      --border-light: #E8E4F0;
      --radius-card: 12px;
      --radius-btn: 30px;
      --radius-nav: 40px;
      --shadow-sm: 0 2px 12px rgba(45,27,78,0.06);
      --shadow-hover: 0 8px 24px rgba(45,27,78,0.12);
      --transition: 0.25s ease;
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.5;
      font-weight: 400;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

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

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

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

    /* 悬浮胶囊导航 */
    .capsule-nav {
      position: fixed;
      top: 16px;
      left: 24px;
      right: 24px;
      z-index: 1000;
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255,255,255,0.3);
      border-radius: var(--radius-nav);
      padding: 8px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 10px 20px rgba(45,27,78,0.08);
      transition: all var(--transition);
    }

    .logo {
      font-weight: 700;
      font-size: 22px;
      color: var(--primary-deep);
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
      white-space: nowrap;
    }
    .logo i {
      color: var(--secondary-orange);
      font-size: 24px;
    }

    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
      font-weight: 500;
      color: var(--text-main);
    }
    .nav-links a {
      font-size: 15px;
      padding: 6px 0;
      border-bottom: 2px solid transparent;
      transition: color var(--transition), border-color var(--transition);
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--secondary-orange);
      border-bottom-color: var(--secondary-orange);
    }

    .nav-cta {
      background: var(--secondary-orange);
      color: white;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      transition: background var(--transition), transform var(--transition);
      white-space: nowrap;
      border: none;
      cursor: pointer;
    }
    .nav-cta:hover {
      background: #E55A2B;
      transform: translateY(-1px);
    }

    .hamburger {
      display: none;
      background: transparent;
      border: none;
      font-size: 26px;
      color: var(--primary-deep);
      cursor: pointer;
    }

    /* 移动端导航面板 */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 80px;
      left: 20px;
      right: 20px;
      background: rgba(45,27,78,0.95);
      backdrop-filter: blur(20px);
      border-radius: 24px;
      padding: 32px 24px;
      flex-direction: column;
      gap: 24px;
      z-index: 999;
      box-shadow: 0 20px 30px rgba(0,0,0,0.3);
    }
    .mobile-menu a {
      color: white;
      font-size: 18px;
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,0.2);
      padding-bottom: 12px;
    }
    .mobile-menu a:hover {
      color: var(--secondary-orange);
      border-bottom-color: var(--secondary-orange);
    }
    .mobile-menu .nav-cta {
      display: inline-block;
      width: fit-content;
      margin-top: 8px;
    }

    @media (max-width: 768px) {
      .nav-links, .capsule-nav .nav-cta {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .mobile-menu.active {
        display: flex;
      }
    }

    /* 板块通用 */
    section {
      padding: 80px 0;
    }
    @media (max-width: 768px) {
      section {
        padding: 48px 0;
      }
    }

    h1, h2, h3 {
      font-weight: 700;
    }
    h1 {
      font-size: 36px;
      line-height: 48px;
      letter-spacing: -0.5px;
    }
    h2 {
      font-size: 28px;
      line-height: 38px;
      margin-bottom: 16px;
    }
    h3 {
      font-size: 20px;
      line-height: 28px;
      font-weight: 600;
    }
    p {
      color: var(--text-sub);
      line-height: 26px;
      margin-bottom: 1rem;
    }

    .btn-primary {
      background: var(--secondary-orange);
      color: white;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      display: inline-block;
      transition: background var(--transition), box-shadow var(--transition);
      border: none;
      font-size: 16px;
      letter-spacing: 0.5px;
    }
    .btn-primary:hover {
      background: #E55A2B;
      box-shadow: 0 8px 16px rgba(255,107,53,0.2);
    }

    .btn-secondary {
      background: transparent;
      border: 2px solid white;
      color: white;
      font-weight: 600;
      padding: 12px 30px;
      border-radius: var(--radius-btn);
      display: inline-block;
      transition: all var(--transition);
    }
    .btn-secondary:hover {
      background: rgba(255,255,255,0.1);
    }

    .btn-outline-orange {
      border: 2px solid var(--secondary-orange);
      color: var(--secondary-orange);
      background: transparent;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      transition: all var(--transition);
    }
    .btn-outline-orange:hover {
      background: rgba(255,107,53,0.08);
    }

    /* Hero */
    .hero {
      background: linear-gradient(135deg, #2D1B4E 0%, #1A1035 100%);
      color: white;
      padding: 140px 0 100px;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      mix-blend-mode: overlay;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero h1 {
      color: white;
      text-shadow: 0 2px 10px rgba(212,175,55,0.3);
    }
    .hero .subtitle {
      font-size: 18px;
      color: #CBC3E3;
      margin: 20px 0 28px;
    }
    .kpi-row {
      display: flex;
      gap: 24px;
      margin-top: 40px;
      flex-wrap: wrap;
    }
    .kpi-card {
      background: rgba(255,255,255,0.1);
      backdrop-filter: blur(8px);
      border-radius: 12px;
      padding: 20px 24px;
      flex: 1;
      min-width: 140px;
      text-align: center;
      color: white;
    }
    .kpi-num {
      font-size: 32px;
      font-weight: 700;
      color: var(--gold-accent);
    }
    .kpi-label {
      font-size: 14px;
      color: #ddd;
    }

    /* 价值主张 */
    .value-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 40px;
      align-items: center;
    }
    .value-items {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .value-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .value-icon {
      font-size: 28px;
      color: var(--secondary-orange);
      min-width: 40px;
    }

    /* 功能卡片 3x2 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .feature-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      font-size: 32px;
      color: var(--secondary-orange);
      margin-bottom: 16px;
    }

    /* 场景 */
    .scenarios-row {
      display: flex;
      gap: 30px;
    }
    .scenario-card {
      flex: 1;
      background: var(--card-bg);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .scenario-img {
      height: 200px;
      background-size: cover;
      background-position: center;
      background-color: rgba(45,27,78,0.15);
    }
    .scenario-text {
      padding: 20px;
    }

    /* 案例 */
    .case-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 28px;
      display: flex;
      gap: 24px;
      align-items: center;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .case-quote {
      font-style: italic;
      font-size: 17px;
      border-left: 5px solid var(--secondary-orange);
      padding-left: 20px;
      color: var(--text-main);
    }
    .case-author {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 180px;
    }
    .case-avatar {
      width: 48px;
      height: 48px;
      background: var(--primary-deep);
      border-radius: 50%;
    }

    /* 价格卡片 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pricing-card {
      background: var(--card-bg);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 32px 24px;
      text-align: center;
      transition: all var(--transition);
    }
    .pricing-card.featured {
      border: 2px solid var(--gold-accent);
      background: #FFFDF5;
    }
    .price {
      font-size: 48px;
      font-weight: 700;
      color: var(--primary-deep);
    }
    .price small {
      font-size: 24px;
    }
    .badge-popular {
      background: var(--secondary-orange);
      color: white;
      font-size: 12px;
      padding: 4px 14px;
      border-radius: 20px;
      display: inline-block;
    }

    /* FAQ */
    .accordion-item {
      border-bottom: 1px solid var(--border-light);
      padding: 16px 0;
      cursor: pointer;
    }
    .accordion-title {
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      color: var(--text-main);
      transition: color var(--transition);
    }
    .accordion-title:hover {
      color: var(--secondary-orange);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      color: var(--text-sub);
    }
    .accordion-item.active .accordion-content {
      max-height: 200px;
      padding-bottom: 16px;
    }

    /* CTA 尾板 */
    .cta-footer-section {
      background: linear-gradient(135deg, #2D1B4E, #FF6B35);
      color: white;
      text-align: center;
    }
    .cta-footer-section .btn-light {
      background: white;
      color: var(--primary-deep);
      font-weight: 700;
      padding: 14px 36px;
      border-radius: 30px;
      margin-top: 20px;
      display: inline-block;
    }

    /* 页脚 */
    .footer {
      background: #1E1E2F;
      color: #B0ADC4;
      padding: 48px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
    }
    .footer a:hover {
      color: var(--secondary-orange);
    }

    @media (max-width: 1024px) {
      .value-grid, .features-grid, .pricing-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      h1 { font-size: 28px; line-height: 38px; }
      .value-grid, .features-grid, .scenarios-row, .pricing-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      .case-card {
        flex-direction: column;
      }
      .capsule-nav {
        left: 16px; right: 16px;
      }
    }