/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --deep-gold: #B87333;
      --dark-arena: #1A1A1A;
      --victory-white: #F8F9FA;
      --electric-blue: #007BFF;
      --card-bg: #FFFFFF;
      --light-gray: #F4F4F4;
      --text-primary: #1F2937;
      --text-secondary: #4B5563;
      --text-muted: #6B7280;
      --border-light: #E5E7EB;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.08);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
      --radius-lg: 12px;
      --radius-md: 8px;
      --font-sans: 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--victory-white);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      scroll-behavior: smooth;
      padding-bottom: 70px; /* 移动端底部导航留白 */
    }
    @media (min-width: 768px) {
      body {
        padding-bottom: 0;
      }
    }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    /* 导航栏 */
    .desktop-nav {
      display: none;
    }
    @media (min-width: 768px) {
      .desktop-nav {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(26, 26, 26, 0.8);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 50;
        border-bottom: 1px solid rgba(184, 115, 51, 0.3);
        padding: 0 2rem;
        height: 72px;
        align-items: center;
        justify-content: space-between;
      }
      .logo-text {
        font-weight: 900;
        font-size: 1.75rem;
        letter-spacing: 2px;
        color: var(--deep-gold);
        text-decoration: none;
        text-shadow: 0 2px 4px rgba(0,0,0,0.5);
      }
      .nav-links a {
        color: white;
        text-decoration: none;
        margin-left: 2.5rem;
        font-weight: 600;
        font-size: 1rem;
        transition: color 0.2s ease, border-bottom 0.2s ease;
        padding-bottom: 4px;
        border-bottom: 2px solid transparent;
      }
      .nav-links a:hover,
      .nav-links a.active {
        color: var(--deep-gold);
        border-bottom-color: var(--deep-gold);
      }
    }
    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: flex;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 60px;
      background: var(--dark-arena);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-top: 1px solid rgba(184, 115, 51, 0.4);
      z-index: 50;
      justify-content: space-around;
      align-items: center;
      padding: 0 8px;
    }
    @media (min-width: 768px) {
      .mobile-bottom-nav {
        display: none;
      }
    }
    .mobile-tab {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: white;
      text-decoration: none;
      font-size: 0.7rem;
      font-weight: 600;
      transition: color 0.2s;
      gap: 4px;
      padding: 0 5px;
    }
    .mobile-tab i {
      font-size: 1.2rem;
    }
    .mobile-tab.active {
      color: var(--deep-gold);
    }
    /* 板块通用 */
    section {
      padding: 5rem 0;
    }
    @media (max-width: 768px) {
      section {
        padding: 3.5rem 0;
      }
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--dark-arena);
      margin-bottom: 1rem;
      letter-spacing: 0.5px;
    }
    .section-subtitle {
      font-size: 1.125rem;
      color: var(--text-secondary);
      max-width: 700px;
      margin: 0 auto 2.5rem auto;
      line-height: 1.7;
    }
    /* 卡片通用 */
    .card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.3s ease;
      border: 1px solid var(--border-light);
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-top: 3px solid var(--deep-gold);
    }
    /* 按钮样式 */
    .btn-primary {
      background: var(--electric-blue);
      color: white;
      font-weight: 700;
      padding: 0.85rem 2.2rem;
      border-radius: 50px;
      border: none;
      cursor: pointer;
      transition: background 0.2s, transform 0.1s;
      display: inline-block;
      text-decoration: none;
      letter-spacing: 0.5px;
      box-shadow: 0 4px 10px rgba(0,123,255,0.3);
    }
    .btn-primary:hover {
      background: #0056b3;
      transform: scale(1.02);
    }
    .btn-outline-gold {
      background: transparent;
      border: 2px solid white;
      color: white;
      font-weight: 700;
      padding: 0.85rem 2.5rem;
      border-radius: 50px;
      cursor: pointer;
      transition: all 0.25s;
      display: inline-block;
      text-decoration: none;
    }
    .btn-outline-gold:hover {
      background: white;
      color: var(--deep-gold);
      border-color: white;
    }
    /* 背景图区块 */
    .hero-bg {
      background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 70%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      background-blend-mode: overlay;
    }
    .dark-bg {
      background-color: var(--dark-arena);
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: soft-light;
    }
    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 1.2rem 0;
    }
    .faq-question {
      font-weight: 700;
      font-size: 1.1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--dark-arena);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: var(--text-secondary);
      line-height: 1.7;
      padding-right: 2rem;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      margin-top: 0.8rem;
    }
    .faq-icon {
      color: var(--deep-gold);
      font-weight: bold;
      font-size: 1.4rem;
    }
    /* 计数动画依赖 */
    .count-number {
      font-weight: 900;
      font-size: 3rem;
      color: var(--electric-blue);
    }
    @media (max-width: 768px) {
      .count-number {
        font-size: 2.25rem;
      }
    }
    .testimonial-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .quote-mark {
      font-size: 4rem;
      color: var(--deep-gold);
      opacity: 0.5;
      position: absolute;
      top: 10px;
      left: 15px;
      line-height: 1;
    }