/* roulang page: index */
:root {
      --primary: #0A66C2;
      --secondary: #00A389;
      --dark: #0F172A;
      --navy: #0B132B;
      --light-bg: #F8FAFC;
      --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --card-shadow-hover: 0 12px 28px -4px rgba(10, 102, 194, 0.16);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: #334155;
      background-color: #FFFFFF;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      letter-spacing: 0.02em;
    }
    .custom-card {
      box-shadow: var(--card-shadow);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-4px);
    }
    .gradient-hero-bg {
      background: linear-gradient(135deg, rgba(11, 19, 43, 0.94) 0%, rgba(10, 102, 194, 0.88) 100%), url('/assets/images/ef5dc427be18ba3c.jpg') center/cover no-repeat;
    }
    .gradient-banner-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(0, 163, 137, 0.86) 100%), url('/assets/images/947f36289433d6e4.jpg') center/cover no-repeat;
    }
    .coupon-ticket {
      position: relative;
      background: radial-gradient(circle at 0 50%, transparent 12px, #ffffff 13px) top left,
                  radial-gradient(circle at 100% 50%, transparent 12px, #ffffff 13px) top right;
      background-size: 100% 100%;
    }