/* roulang page: index */
:root {
      --deep-burgundy: #8B1E3F;
      --dark-burgundy: #6B1530;
      --darker-burgundy: #3D0D1C;
      --warm-gold: #C8963E;
      --gold-hover: #B07D2E;
      --bg-warm-light: #FAF7F4;
      --bg-accent: #F5F0EB;
      --text-primary: #1A1A1A;
      --text-secondary: #4A4A4A;
      --text-light: #CCCCCC;
      --success-green: #2D6A4F;
      --shadow-card: 0 8px 30px rgba(139, 30, 63, 0.12);
      --shadow-gold: 0 4px 14px rgba(200, 150, 62, 0.3);
      --shadow-badge: 0 4px 12px rgba(200, 150, 62, 0.25);
      --radius-xl: 20px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-btn: 12px;
      --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      --font-body: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      --font-number: 'Inter', 'SF Pro Display', 'PingFang SC', sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-body);
      background-color: var(--bg-warm-light);
      color: var(--text-primary);
      line-height: 1.75;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }

    /* 左侧竖向导航桌面样式 */
    .side-nav {
      background: linear-gradient(180deg, var(--dark-burgundy) 0%, var(--darker-burgundy) 100%);
      width: 240px;
      height: 100vh;
      position: fixed;
      left: 0;
      top: 0;
      display: flex;
      flex-direction: column;
      z-index: 50;
      box-shadow: 4px 0 20px rgba(0,0,0,0.15);
    }

    .nav-brand {
      padding: 28px 20px 24px;
      border-bottom: 1px solid rgba(255,255,255,0.15);
      margin-bottom: 24px;
    }

    .nav-menu a {
      display: block;
      padding: 12px 24px;
      color: rgba(255,255,255,0.8);
      font-weight: 500;
      font-size: 1rem;
      letter-spacing: 0.3px;
      transition: all 0.2s ease;
      border-left: 3px solid transparent;
      text-decoration: none;
      position: relative;
    }

    .nav-menu a:hover {
      background-color: rgba(255,255,255,0.08);
      color: #ffffff;
      border-left-color: var(--warm-gold);
    }

    .mobile-nav {
      display: none;
    }

    /* 通用区块样式 */
    .section-container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 2rem;
      padding-right: 2rem;
    }

    .main-content {
      margin-left: 240px;
      width: calc(100% - 240px);
    }

    .section-spacing {
      padding-top: 100px;
      padding-bottom: 100px;
    }

    .text-gradient-gold {
      background: linear-gradient(135deg, #C8963E 0%, #E6B450 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .btn-primary {
      background-color: var(--warm-gold);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      display: inline-block;
      text-align: center;
      box-shadow: var(--shadow-gold);
      transition: all 0.25s ease;
      border: none;
      cursor: pointer;
      text-decoration: none;
      letter-spacing: 0.5px;
    }

    .btn-primary:hover {
      background-color: var(--gold-hover);
      box-shadow: 0 8px 22px rgba(176, 125, 46, 0.45);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--deep-burgundy);
      color: var(--deep-burgundy);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 12px 28px;
      display: inline-block;
      transition: all 0.25s ease;
      text-decoration: none;
    }

    .btn-outline:hover {
      background-color: var(--deep-burgundy);
      color: white;
    }

    .card {
      background: white;
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }

    .card:hover {
      transform: translateY(-8px);
      box-shadow: 0 16px 36px rgba(139, 30, 63, 0.18);
    }

    .badge-number {
      font-family: var(--font-number);
      font-weight: 700;
      color: var(--warm-gold);
    }

    /* 移动端适配 */
    @media (max-width: 1024px) {
      .side-nav {
        display: none;
      }
      .main-content {
        margin-left: 0;
        width: 100%;
      }
      .mobile-nav {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: linear-gradient(90deg, #6B1530 0%, #3D0D1C 100%);
        z-index: 60;
        align-items: center;
        justify-content: space-between;
        padding: 16px 24px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.25);
      }
      .section-spacing {
        padding-top: 70px;
        padding-bottom: 70px;
      }
    }

    @media (max-width: 768px) {
      .section-spacing {
        padding-top: 60px;
        padding-bottom: 60px;
      }
      .hero-title {
        font-size: 2rem;
        line-height: 1.3;
      }
    }