/* roulang page: index */
:root {
      --gold: #C8A45C;
      --amber: #B8860B;
      --warm-orange: #FF8C42;
      --dark-wood: #1A0F0A;
      --deep-wine: #1C0D0A;
      --warm-gray: #D4C5B9;
      --card-bg: rgba(28, 13, 10, 0.8);
      --border-gold: 1px solid rgba(200, 164, 92, 0.35);
      --shadow-gold: 0 8px 32px rgba(200, 164, 92, 0.15);
      --font-cinzel: 'Cinzel', serif;
      --font-rajdhani: 'Rajdhani', sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      background-color: var(--dark-wood);
      color: var(--warm-gray);
      line-height: 1.75;
      margin: 0;
      overflow-x: hidden;
    }

    .font-cinzel {
      font-family: var(--font-cinzel);
    }
    .font-rajdhani {
      font-family: var(--font-rajdhani);
    }

    /* 背景纹理 */
    .hero-texture {
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      position: relative;
    }
    .hero-texture::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 30% 40%, rgba(200,164,92,0.12) 0%, rgba(26,15,10,0.9) 80%);
    }

    /* 导航 */
    .navbar {
      background: rgba(26, 15, 10, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(200, 164, 92, 0.4);
    }
    .nav-link {
      color: var(--warm-gray);
      transition: all 0.25s ease;
      position: relative;
      font-weight: 500;
      letter-spacing: 0.3px;
    }
    .nav-link:hover {
      color: var(--gold);
      text-shadow: 0 0 8px rgba(200,164,92,0.5);
    }
    .nav-link.active {
      color: var(--warm-orange);
      border-bottom: 2px solid var(--warm-orange);
      text-shadow: 0 0 12px rgba(255,140,66,0.7);
    }

    /* 霓虹CTA按钮 */
    .btn-neon {
      background: linear-gradient(145deg, #C8A45C, #B8860B);
      color: #1A0F0A;
      font-weight: 700;
      border: none;
      padding: 0.75rem 2rem;
      border-radius: 50px;
      letter-spacing: 1px;
      box-shadow: 0 0 18px rgba(255,140,66,0.6);
      transition: all 0.3s ease;
      text-transform: uppercase;
      font-size: 0.9rem;
    }
    .btn-neon:hover {
      transform: scale(1.05);
      box-shadow: 0 0 28px rgba(255,140,66,0.9), 0 10px 20px rgba(0,0,0,0.5);
      background: linear-gradient(145deg, #d4b46a, #c8a45c);
    }

    .btn-outline-gold {
      border: 2px solid var(--gold);
      color: var(--gold);
      background: transparent;
      padding: 0.75rem 2rem;
      border-radius: 50px;
      font-weight: 600;
      letter-spacing: 1px;
      transition: all 0.3s ease;
    }
    .btn-outline-gold:hover {
      background: rgba(200,164,92,0.15);
      border-color: var(--warm-orange);
      color: var(--warm-orange);
      box-shadow: 0 0 15px rgba(255,140,66,0.4);
    }

    /* 卡片 */
    .luxury-card {
      background: var(--card-bg);
      border: var(--border-gold);
      border-radius: 12px;
      padding: 2rem;
      box-shadow: var(--shadow-gold);
      transition: all 0.35s ease;
      backdrop-filter: blur(8px);
    }
    .luxury-card:hover {
      border-color: rgba(255,140,66,0.7);
      box-shadow: 0 16px 40px rgba(200,164,92,0.3);
      transform: translateY(-6px);
    }

    .icon-circle {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      border: 2px solid var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--gold);
      font-size: 1.8rem;
      margin-bottom: 1.2rem;
      background: rgba(200,164,92,0.1);
      transition: 0.3s;
    }
    .luxury-card:hover .icon-circle {
      background: rgba(255,140,66,0.15);
      border-color: var(--warm-orange);
      color: var(--warm-orange);
      box-shadow: 0 0 20px rgba(255,140,66,0.5);
    }

    .decor-line {
      width: 70px;
      height: 3px;
      background: linear-gradient(90deg, var(--gold), var(--warm-orange));
      border-radius: 4px;
      margin: 0.8rem 0 1.5rem;
      box-shadow: 0 0 10px var(--warm-orange);
    }

    /* FAQ手风琴 */
    .faq-item {
      border-left: 3px solid var(--gold);
      background: rgba(28,13,10,0.7);
      padding: 1.2rem;
      margin-bottom: 1rem;
      border-radius: 0 8px 8px 0;
      transition: 0.3s;
      cursor: pointer;
    }
    .faq-item.active {
      border-left-color: var(--warm-orange);
      background: rgba(28,13,10,0.9);
      box-shadow: 0 0 18px rgba(255,140,66,0.3);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      background: rgba(0,0,0,0.3);
      border-radius: 6px;
      margin-top: 0.8rem;
    }

    /* 横向滚动案例 */
    .scroll-cases {
      display: flex;
      gap: 1.5rem;
      overflow-x: auto;
      padding-bottom: 1.5rem;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
    }
    .scroll-cases::-webkit-scrollbar {
      height: 4px;
    }
    .scroll-cases::-webkit-scrollbar-thumb {
      background: var(--gold);
      border-radius: 10px;
    }
    .case-card {
      min-width: 280px;
      max-width: 320px;
      scroll-snap-align: start;
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.8rem !important;
      }
    }