/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary: #F04E23;
      --primary-hover: #d43d1a;
      --secondary-bg: #0F1923;
      --accent: #00E5A0;
      --bg-white: #FAFAFA;
      --card-white: #FFFFFF;
      --text-black: #1A1A1A;
      --text-secondary: #5C6B7A;
      --border-light: #E8ECF1;
      --shadow-sm: 0 2px 12px rgba(15, 25, 35, 0.06);
      --shadow-md: 0 8px 24px rgba(15, 25, 35, 0.12);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-tag: 20px;
      --sidebar-width: 240px;
      --transition: 0.2s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      background-color: var(--bg-white);
      color: var(--text-black);
      line-height: 1.8;
      display: flex;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }

    /* 左侧导航 App Shell */
    .app-sidebar {
      width: var(--sidebar-width);
      background-color: var(--secondary-bg);
      color: white;
      position: fixed;
      top: 0;
      left: 0;
      height: 100vh;
      display: flex;
      flex-direction: column;
      padding: 2rem 1.25rem;
      z-index: 1000;
      box-shadow: 2px 0 15px rgba(0,0,0,0.1);
      transition: transform var(--transition);
    }

    .sidebar-logo {
      font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
      font-weight: 900;
      font-size: 1.75rem;
      letter-spacing: 0.02em;
      color: white;
      margin-bottom: 2.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .sidebar-logo i {
      color: var(--primary);
      font-size: 2rem;
    }

    .nav-menu {
      list-style: none;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .nav-item a {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      color: #b0bec5;
      text-decoration: none;
      padding: 0.7rem 1rem;
      border-radius: 6px;
      font-weight: 500;
      font-size: 1rem;
      transition: all var(--transition);
      position: relative;
      border-left: 3px solid transparent;
    }

    .nav-item a i {
      width: 20px;
      text-align: center;
      font-size: 1.1rem;
    }

    .nav-item a:hover {
      color: var(--accent);
      background-color: rgba(255,255,255,0.05);
      border-left: 3px solid var(--primary);
    }

    .nav-item a.active {
      color: var(--primary);
      background-color: rgba(240,78,35,0.1);
      border-left: 3px solid var(--primary);
      font-weight: 700;
    }

    .sidebar-cta {
      margin-top: auto;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: white;
      text-align: center;
      padding: 0.8rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      text-decoration: none;
      transition: transform var(--transition), box-shadow var(--transition);
      display: block;
      font-size: 0.95rem;
    }
    .sidebar-cta:hover {
      transform: scale(1.03);
      box-shadow: 0 4px 15px rgba(0,229,160,0.4);
    }

    /* 主内容区 */
    .main-content {
      margin-left: var(--sidebar-width);
      flex: 1;
      width: calc(100% - var(--sidebar-width));
      background-color: var(--bg-white);
    }

    /* 移动端顶部导航 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 56px;
      background-color: var(--secondary-bg);
      color: white;
      z-index: 999;
      align-items: center;
      justify-content: space-between;
      padding: 0 1.25rem;
      box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    }
    .mobile-logo {
      font-weight: 900;
      font-size: 1.4rem;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .hamburger {
      font-size: 1.8rem;
      background: none;
      border: none;
      color: white;
      cursor: pointer;
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* 抽屉菜单 */
    .mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(15,25,35,0.98);
      z-index: 1001;
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      padding: 2rem;
    }
    .mobile-drawer.open {
      transform: translateX(0);
    }
    .drawer-close {
      align-self: flex-end;
      background: none;
      border: none;
      color: white;
      font-size: 2rem;
      cursor: pointer;
      margin-bottom: 2rem;
    }
    .drawer-nav a {
      display: block;
      color: #ccc;
      font-size: 1.3rem;
      padding: 1rem 0;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      text-decoration: none;
      font-weight: 500;
    }

    /* 通用容器 */
    .section-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 5rem 2rem;
    }

    h2.section-title {
      font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
      font-weight: 900;
      font-size: 2.25rem;
      letter-spacing: 0.02em;
      color: var(--text-black);
      margin-bottom: 1rem;
    }

    /* Hero */
    .hero-block {
      background-color: var(--secondary-bg);
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      min-height: 85vh;
      display: flex;
      align-items: center;
      color: white;
      overflow: hidden;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(15,25,35,0.85) 0%, rgba(240,78,35,0.3) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 700px;
      padding: 2rem;
    }
    .hero-title {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 1.5rem;
    }
    .hero-sub {
      font-size: 1.25rem;
      color: #ddd;
      margin-bottom: 2.5rem;
      line-height: 1.8;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: white;
      padding: 0.9rem 2.5rem;
      border-radius: 14px;
      font-weight: 700;
      font-size: 1.1rem;
      text-decoration: none;
      display: inline-block;
      transition: transform var(--transition), box-shadow var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      transform: scale(1.03);
      box-shadow: 0 8px 20px rgba(0,229,160,0.4);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      padding: 0.8rem 2rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      transition: all var(--transition);
      text-decoration: none;
      display: inline-block;
    }
    .btn-outline:hover {
      background: var(--primary);
      color: white;
    }

    /* 非对称优势 */
    .asymmetric-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 2rem;
      align-items: center;
    }
    .big-image {
      background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      border-radius: var(--radius-card);
      height: 350px;
      box-shadow: var(--shadow-sm);
    }
    .small-cards {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }
    .advantage-card {
      background: var(--card-white);
      padding: 1.5rem;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      border-left: 4px solid var(--primary);
      transition: all var(--transition);
    }
    .advantage-card:hover {
      box-shadow: var(--shadow-md);
      border-left-color: var(--accent);
    }

    /* 2x2 不规则网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
    }
    .feature-item {
      background: var(--card-white);
      padding: 2rem;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      display: flex;
      gap: 1.5rem;
      align-items: flex-start;
      transition: all var(--transition);
    }
    .feature-item:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .feature-icon {
      width: 48px;
      height: 48px;
      background: rgba(0,229,160,0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.5rem;
      flex-shrink: 0;
    }

    /* 横向滚动场景 */
    .scroll-x-container {
      display: flex;
      gap: 1.5rem;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 1rem;
    }
    .scene-card {
      min-width: 300px;
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 1.5rem;
      scroll-snap-align: start;
      box-shadow: var(--shadow-sm);
    }

    /* 数据墙深色反转 */
    .stats-wall {
      background: var(--secondary-bg);
      color: white;
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 2rem;
      text-align: center;
    }
    .stat-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--accent);
    }

    /* 价格对比表 */
    .pricing-table {
      display: flex;
      gap: 1.5rem;
      justify-content: center;
      flex-wrap: wrap;
    }
    .price-card {
      background: var(--card-white);
      padding: 2rem;
      border-radius: var(--radius-card);
      flex: 1;
      min-width: 220px;
      border: 2px solid var(--border-light);
      transition: all var(--transition);
    }
    .price-card.recommended {
      border-color: var(--primary);
      transform: scale(1.03);
      box-shadow: var(--shadow-md);
    }
    .badge {
      background: var(--primary);
      color: white;
      padding: 0.2rem 1rem;
      border-radius: var(--radius-tag);
      font-size: 0.8rem;
      font-weight: 700;
    }

    /* FAQ 双列 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
    }
    .faq-item {
      background: #F7F9FB;
      border-radius: 8px;
      padding: 1rem;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 700;
      display: flex;
      justify-content: space-between;
    }

    /* 页脚 */
    .footer {
      background: var(--secondary-bg);
      color: #ccc;
      padding: 3rem 2rem;
    }

    @media (max-width: 1024px) {
      .app-sidebar { display: none; }
      .main-content { margin-left: 0; width: 100%; }
      .mobile-header { display: flex; }
      .hero-title { font-size: 2.5rem; }
      .asymmetric-grid { grid-template-columns: 1fr; }
      .faq-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .features-grid { grid-template-columns: 1fr; }
      .hero-title { font-size: 2rem; }
    }