/* roulang page: index */
:root {
      --bg-main: #0A0C10;
      --surface-card: #181D28;
      --accent-gradient: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      --cyan-glow: rgba(0, 229, 255, 0.35);
      --red-glow: rgba(255, 42, 84, 0.4);
    }
    body {
      background-color: var(--bg-main);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .hero-angled-bg {
      clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4vw), 0 100%);
    }
    .gradient-btn {
      background: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .gradient-btn:hover {
      box-shadow: 0 10px 25px -5px var(--red-glow);
      filter: brightness(1.1);
      transform: translateY(-2px);
    }
    .glass-card {
      background: rgba(24, 29, 40, 0.75);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(255, 42, 84, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.7);
    }
    .tab-active {
      background: linear-gradient(135deg, rgba(255, 42, 84, 0.2), rgba(255, 107, 0, 0.2));
      border-color: #FF2A54;
      color: #FFF;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: rgba(255, 255, 255, 0.2);
      border-radius: 999px;
    }

/* roulang page: category1 */
:root {
      --bg-main: #0A0C10;
      --surface-card: #181D28;
      --accent-gradient: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      --cyan-glow: rgba(0, 229, 255, 0.35);
      --red-glow: rgba(255, 42, 84, 0.4);
    }
    body {
      background-color: var(--bg-main);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .gradient-btn:hover {
      box-shadow: 0 10px 25px -5px var(--red-glow);
      filter: brightness(1.1);
      transform: translateY(-2px);
    }
    .glass-card {
      background: rgba(24, 29, 40, 0.75);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(255, 42, 84, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.7);
    }
    .badge-chip {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .badge-chip.active {
      background: linear-gradient(135deg, rgba(255, 42, 84, 0.2), rgba(255, 107, 0, 0.2));
      border-color: #FF2A54;
      color: #FFF;
    }

/* roulang page: category2 */
:root {
      --bg-main: #0A0C10;
      --surface-card: #181D28;
      --accent-gradient: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      --cyan-glow: rgba(0, 229, 255, 0.35);
      --red-glow: rgba(255, 42, 84, 0.4);
    }
    body {
      background-color: var(--bg-main);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.8;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .gradient-btn:hover {
      box-shadow: 0 10px 25px -5px var(--red-glow);
      filter: brightness(1.1);
      transform: translateY(-2px);
    }
    .glass-card {
      background: rgba(24, 29, 40, 0.75);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(255, 42, 84, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.7);
    }
    .filter-pill {
      transition: all 0.2s ease;
    }
    .filter-pill.active {
      background: linear-gradient(135deg, #FF2A54 0%, #FF6B00 100%);
      color: #ffffff;
      border-color: transparent;
      box-shadow: 0 4px 12px rgba(255, 42, 84, 0.3);
    }
    .filter-pill:not(.active):hover {
      background: rgba(255, 255, 255, 0.06);
      color: #ffffff;
      border-color: rgba(255, 255, 255, 0.2);
    }