/* roulang page: index */
:root {
      --primary: #5B2C8E;
      --primary-light: #7B4DB0;
      --accent: #E85D3A;
      --gold: #F4A236;
      --bg: #FAF8FC;
      --text: #1E1B2E;
      --text-muted: #5A5670;
      --card-bg: #FFFFFF;
      --card-dark-bg: rgba(255, 255, 255, 0.06);
      --border-light: rgba(91, 44, 142, 0.08);
      --border-medium: rgba(91, 44, 142, 0.2);
      --shadow-card: 0 2px 12px rgba(91, 44, 142, 0.06);
      --shadow-hover: 0 8px 30px rgba(91, 44, 142, 0.12);
      --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.2);
      --radius-card: 1.25rem;
      --radius-chip: 0.75rem;
      --radius-btn: 0.75rem;
      --font-h1: clamp(2.5rem, 6vw, 3.5rem);
      --font-h2: clamp(1.8rem, 4vw, 2.5rem);
      --font-h3: 1.35rem;
      --transition: all 0.25s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    button, input {
      font-family: inherit;
      outline: none;
      border: none;
    }
    /* 卡片化导航面板 */
    .nav-panel {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-radius: var(--radius-card);
      box-shadow: 0 2px 24px rgba(91, 44, 142, 0.08);
      padding: 0.75rem 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 1rem;
      border: 1px solid rgba(255,255,255,0.7);
    }
    .nav-logo {
      font-weight: 800;
      font-size: 1.5rem;
      letter-spacing: -0.02em;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-chips {
      display: flex;
      gap: 0.5rem;
      align-items: center;
      flex-wrap: wrap;
    }
    .nav-chip {
      padding: 0.5rem 1rem;
      border-radius: var(--radius-chip);
      font-weight: 500;
      font-size: 0.9rem;
      color: var(--text-muted);
      background: transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .nav-chip:hover, .nav-chip.active {
      background: rgba(91, 44, 142, 0.08);
      color: var(--primary);
      font-weight: 600;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: white;
      font-weight: 600;
      padding: 0.7rem 1.8rem;
      border-radius: var(--radius-btn);
      box-shadow: 0 4px 12px rgba(232, 93, 58, 0.25);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap;
    }
    .btn-primary:hover {
      transform: scale(1.03);
      box-shadow: 0 8px 24px rgba(232, 93, 58, 0.35);
      background: linear-gradient(135deg, #6B3FA0 0%, #F46A4A 100%);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      font-weight: 600;
      padding: 0.7rem 1.8rem;
      border-radius: var(--radius-btn);
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-outline:hover {
      background: rgba(91, 44, 142, 0.06);
      border-color: var(--accent);
      color: var(--accent);
    }
    .badge-card {
      background: white;
      border-radius: var(--radius-chip);
      padding: 0.75rem 1rem;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      align-items: center;
      min-width: 100px;
    }
    .badge-number {
      font-weight: 800;
      font-size: 1.6rem;
      color: var(--accent);
      line-height: 1.2;
    }
    .section-title {
      font-size: var(--font-h2);
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 0.5rem;
    }
    .gradient-text {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    footer a:hover {
      color: var(--accent);
    }
    /* 移动端底部导航 */
    .mobile-dock {
      display: none;
    }
    @media (max-width: 768px) {
      .desktop-nav {
        display: none;
      }
      .mobile-dock {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: white;
        border-radius: 20px 20px 0 0;
        box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
        padding: 0.5rem 1rem;
        justify-content: space-around;
        z-index: 50;
        backdrop-filter: blur(10px);
        background: rgba(255,255,255,0.92);
      }
      .dock-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        font-size: 0.7rem;
        color: var(--text-muted);
        padding: 0.4rem;
      }
      .dock-item i {
        font-size: 1.2rem;
        margin-bottom: 0.2rem;
      }
      .dock-item.active {
        color: var(--primary);
      }
      .hamburger-menu {
        display: block;
      }
    }
    @media (min-width: 769px) {
      .hamburger-menu, .mobile-dock {
        display: none;
      }
      .desktop-nav {
        display: flex;
      }
    }
    .hamburger-btn {
      background: none;
      border: none;
      font-size: 1.8rem;
      color: var(--primary);
    }