/* roulang page: index */
:root {
      --deep-blue: #1A1F36;
      --gold: #C5A05A;
      --warm-bg: #F9F7F4;
      --teal: #5E9E9E;
      --text-body: #3A3F4A;
      --text-muted: #7A7E89;
      --white: #FFFFFF;
      --border-light: #E5E7EB;
      --radius-xl: 1rem;
      --radius-full: 9999px;
      --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
      --transition-base: all 0.3s ease;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--warm-bg);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    button, input {
      font-family: inherit;
      outline: none;
    }

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

    /* 导航与首屏联动 (桌面端分屏) */
    .split-hero {
      display: flex;
      min-height: 100vh;
    }

    .hero-bg-image {
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, rgba(26,31,54,0.7), rgba(26,31,54,0.4));
    }

    /* 导航指示器 */
    .nav-indicator {
      width: 4px;
      height: 20px;
      background-color: transparent;
      transition: background-color 0.2s, height 0.2s;
      border-radius: 2px;
    }
    .nav-link:hover .nav-indicator,
    .nav-link.active .nav-indicator {
      background-color: var(--gold);
      height: 28px;
    }

    /* FAQ 手风琴 */
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
    }
    .faq-item.open .faq-answer {
      max-height: 20rem;
      padding-top: 0.75rem;
    }
    .faq-icon {
      transition: transform 0.3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }

    /* 卡片悬停 */
    .card-hover {
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--gold);
    }

    /* 数字动画简化示意 */
    @keyframes countUp {
      0% { opacity: 0; transform: translateY(10px); }
      100% { opacity: 1; transform: translateY(0); }
    }
    .count-num {
      animation: countUp 0.6s ease forwards;
      opacity: 0;
    }

    @media (max-width: 1023px) {
      .split-hero {
        flex-direction: column;
      }
      .hero-bg-image {
        min-height: 70vh;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }

@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
  }
  .count-num { animation-play-state: paused; }