/* roulang page: index */
:root {
      --deep-purple: #3A2C3F;
      --champagne-gold: #D4AF37;
      --matte-cream: #F5F0EB;
      --bordeaux-red: #800020;
      --white: #FFFFFF;
      --text-dark: #2E2E2E;
      --text-muted: #6B6B6B;
      --text-light: #AAAAAA;
      --border-light: #E8E3DE;
      --shadow-card: 0 10px 30px rgba(58,44,63,0.08);
      --shadow-hover: 0 20px 40px rgba(58,44,63,0.15);
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-pill: 50px;
      --transition: 0.3s ease;
      --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }
    
    * {
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      background-color: var(--matte-cream);
      color: var(--text-dark);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    
    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      line-height: 1.3;
    }
    
    a {
      text-decoration: none;
      transition: var(--transition);
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    .section-padding {
      padding: 100px 0;
    }
    
    @media (max-width: 768px) {
      .section-padding {
        padding: 60px 0;
      }
    }
    
    /* 导航栏 */
    .navbar-custom {
      background: transparent;
      transition: background 0.4s ease, box-shadow 0.4s ease;
      padding: 16px 0;
      z-index: 1030;
    }
    .navbar-custom.scrolled {
      background: rgba(30, 22, 32, 0.96);
      backdrop-filter: blur(12px);
      box-shadow: 0 6px 20px rgba(0,0,0,0.2);
      padding: 10px 0;
    }
    .navbar-brand {
      font-weight: 800;
      font-size: 1.8rem;
      letter-spacing: 1px;
      color: var(--white) !important;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .navbar-brand span {
      background: linear-gradient(135deg, #D4AF37 0%, #B8960F 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .navbar-custom .nav-link {
      color: rgba(255,255,255,0.85) !important;
      font-weight: 500;
      font-size: 0.95rem;
      margin: 0 8px;
      padding: 8px 16px !important;
      border-radius: 40px;
      transition: 0.25s;
    }
    .navbar-custom .nav-link:hover,
    .navbar-custom .nav-link.active {
      color: var(--champagne-gold) !important;
      background: rgba(212,175,55,0.12);
    }
    .btn-nav-cta {
      background: linear-gradient(135deg, #D4AF37 0%, #B8960F 100%);
      border: none;
      color: #1E161F;
      font-weight: 700;
      padding: 10px 26px;
      border-radius: 50px;
      font-size: 0.95rem;
      letter-spacing: 0.5px;
      transition: 0.3s;
      position: relative;
      box-shadow: 0 8px 18px rgba(212,175,55,0.3);
    }
    .btn-nav-cta:hover {
      background: linear-gradient(135deg, #C19B2F 0%, #9E7F0D 100%);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(212,175,55,0.45);
      color: #fff;
    }
    .live-badge {
      position: absolute;
      top: -6px;
      right: -10px;
      background: var(--bordeaux-red);
      color: white;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 20px;
      display: flex;
      align-items: center;
      gap: 4px;
      white-space: nowrap;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: #fff;
      border-radius: 50%;
      display: inline-block;
      animation: pulse 1.4s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.6; transform: scale(1.3); }
      100% { opacity: 1; transform: scale(1); }
    }
    .navbar-toggler {
      border: none;
      color: white;
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    
    /* Hero */
    .hero-section {
      min-height: 100vh;
      background: linear-gradient(135deg, rgba(58,44,63,0.88) 0%, rgba(0,0,0,0.5) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
      position: relative;
    }
    .hero-content {
      max-width: 850px;
      margin: 0 auto;
    }
    .hero-title {
      font-size: 3.8rem;
      font-weight: 900;
      text-shadow: 0 8px 28px rgba(0,0,0,0.6);
      letter-spacing: 2px;
      margin-bottom: 1.5rem;
    }
    .hero-sub {
      font-size: 1.25rem;
      opacity: 0.92;
      margin-bottom: 2.5rem;
      font-weight: 400;
    }
    .badge-group {
      display: flex;
      justify-content: center;
      gap: 2rem;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
    }
    .stat-badge {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(8px);
      padding: 16px 28px;
      border-radius: 50px;
      border: 1px solid rgba(212,175,55,0.3);
    }
    .stat-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--champagne-gold);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.8);
    }
    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.5rem;
      }
      .badge-group {
        gap: 1rem;
      }
    }
    
    /* 数据看板 */
    .data-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      text-align: center;
      background: radial-gradient(circle at top left, #fff 60%, #F5F0EB);
    }
    .data-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }
    .counter-digit {
      font-size: 3.2rem;
      font-weight: 800;
      color: var(--champagne-gold);
      line-height: 1.2;
    }
    .data-label {
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--deep-purple);
      margin: 10px 0 6px;
    }
    .data-desc {
      font-size: 0.9rem;
      color: #777;
    }
    
    /* 服务卡片 */
    .service-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: white;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      height: 100%;
    }
    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }
    .service-img {
      height: 200px;
      object-fit: cover;
    }
    .service-body {
      padding: 24px;
      position: relative;
    }
    .service-tag {
      position: absolute;
      top: -14px;
      left: 20px;
      background: var(--bordeaux-red);
      color: white;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
      letter-spacing: 0.5px;
    }
    .tag-gold {
      background: var(--champagne-gold);
      color: #1E161F;
    }
    
    /* 对比表格风格 */
    .compare-highlight {
      background: rgba(212,175,55,0.08);
      border-left: 5px solid var(--champagne-gold);
    }
    .star-gold {
      color: var(--champagne-gold);
    }
    
    /* FAQ */
    .accordion-button:not(.collapsed) {
      background-color: #F5F0EB;
      color: var(--deep-purple);
      font-weight: 700;
      box-shadow: none;
      border-left: 5px solid var(--deep-purple);
    }
    .accordion-button {
      font-weight: 600;
      font-size: 1.1rem;
      background: var(--matte-cream);
      border: none;
      border-radius: 12px !important;
      padding: 20px 24px;
    }
    .accordion-item {
      border: none;
      margin-bottom: 14px;
      background: transparent;
    }
    
    /* 表单 */
    .form-control {
      border-radius: 14px;
      padding: 14px 18px;
      border: 1px solid #ddd;
      transition: 0.2s;
    }
    .form-control:focus {
      border-color: var(--champagne-gold);
      box-shadow: 0 0 0 4px rgba(212,175,55,0.25);
    }
    .btn-submit {
      background: linear-gradient(135deg, #D4AF37 0%, #B8960F 100%);
      border: none;
      font-weight: 700;
      font-size: 1.1rem;
      padding: 14px;
      border-radius: 50px;
      color: #1E161F;
      transition: 0.3s;
      width: 100%;
    }
    .btn-submit:hover {
      filter: brightness(1.1);
      transform: translateY(-3px);
      box-shadow: 0 14px 28px rgba(212,175,55,0.4);
    }
    
    footer {
      background: #1E161F;
      color: #CCC;
    }
    footer a {
      color: #AAA;
    }
    footer a:hover {
      color: var(--champagne-gold);
      padding-left: 4px;
    }
    .footer-logo {
      font-size: 1.8rem;
      font-weight: 800;
      color: white;
    }