/* roulang page: index */
:root {
      /* 主色系统 - 深檀木棕与暖香槟金 */
      --bs-primary: #3E2723;
      --bs-secondary: #C8A96E;
      --bs-accent: #E67E22;
      --bs-body-bg: #FDF8F2;
      --bs-card-bg: #FFFFFF;
      --bs-dark-bg: #2C1F1B;
      --bs-text-primary: #2C1810;
      --bs-text-secondary: #6B5A52;
      --bs-text-light: #FDF8F2;
      --bs-border-radius: 20px;
      --bs-border-radius-sm: 12px;
      --bs-border-radius-lg: 50px;
      --bs-box-shadow: 0 8px 30px rgba(62,39,35,0.08);
      --bs-box-shadow-hover: 0 16px 40px rgba(62,39,35,0.15);
      --bs-font-sans-serif: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --bs-font-serif: "Playfair Display", "Georgia", serif;
      --bs-transition: all 0.3s ease;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--bs-font-sans-serif);
      background-color: var(--bs-body-bg);
      color: var(--bs-text-primary);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    h1, h2, h3, h4, .serif-font {
      font-family: var(--bs-font-serif);
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--bs-transition);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container-custom {
      max-width: 1320px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media (max-width: 1400px) {
      .container-custom {
        max-width: 1140px;
      }
    }
    @media (max-width: 1200px) {
      .container-custom {
        max-width: 960px;
      }
    }
    @media (max-width: 992px) {
      .container-custom {
        max-width: 720px;
      }
    }
    @media (max-width: 768px) {
      .container-custom {
        max-width: 540px;
      }
    }
    @media (max-width: 576px) {
      .container-custom {
        max-width: 100%;
        padding-left: 1rem;
        padding-right: 1rem;
      }
    }

    /* 导航重写 */
    .navbar {
      background-color: #FFFFFF;
      border-bottom: 1px solid rgba(62,39,35,0.08);
      box-shadow: 0 2px 20px rgba(0,0,0,0.04);
      height: 72px;
      z-index: 1000;
      padding: 0 1rem;
    }
    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      color: var(--bs-primary) !important;
      font-size: 1.3rem;
    }
    .navbar-brand .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: transparent;
      border: 2px solid var(--bs-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--bs-secondary);
      font-size: 1.2rem;
    }
    .navbar-nav .nav-link {
      color: var(--bs-text-secondary) !important;
      font-weight: 500;
      margin: 0 0.5rem;
      position: relative;
      padding: 0.5rem 0.2rem;
      transition: color 0.25s ease;
    }
    .navbar-nav .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--bs-secondary);
      transform: scaleX(0);
      transition: transform 0.25s ease;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--bs-primary) !important;
    }
    .navbar-nav .nav-link:hover::after,
    .navbar-nav .nav-link.active::after {
      transform: scaleX(1);
    }
    .search-box {
      display: flex;
      align-items: center;
      background: white;
      border: 1px solid #D6C9B8;
      border-radius: 50px;
      padding: 0.3rem 1rem;
      margin-right: 1rem;
    }
    .search-box i {
      color: var(--bs-text-secondary);
      font-size: 0.9rem;
    }
    .search-box input {
      border: none;
      outline: none;
      background: transparent;
      padding: 0.3rem;
      width: 120px;
      font-size: 0.9rem;
    }
    .btn-primary-custom {
      background-color: var(--bs-accent);
      border: none;
      color: white;
      border-radius: 50px;
      padding: 0.5rem 1.5rem;
      font-weight: 600;
      transition: background 0.25s ease;
    }
    .btn-primary-custom:hover {
      background-color: #D35400;
      color: white;
    }
    .btn-outline-custom {
      background: transparent;
      border: 1.5px solid var(--bs-secondary);
      color: white;
      border-radius: 50px;
      padding: 0.5rem 1.5rem;
      font-weight: 600;
      transition: all 0.25s ease;
    }
    .btn-outline-custom:hover {
      background: white;
      color: var(--bs-secondary);
      border-color: white;
    }
    @media (max-width: 992px) {
      .navbar-collapse {
        background: white;
        padding: 1rem;
        border-radius: 0 0 20px 20px;
        box-shadow: var(--bs-box-shadow);
      }
      .navbar-nav {
        margin-bottom: 1rem;
      }
      .search-box {
        margin: 0.5rem 0;
        width: 100%;
      }
    }

    /* Hero区域 */
    #hero {
      background: linear-gradient(135deg, rgba(62,39,35,0.85) 0%, rgba(44,31,27,0.7) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 90vh;
      display: flex;
      align-items: center;
      color: white;
      position: relative;
    }
    .hero-content {
      max-width: 650px;
    }
    .hero h1 {
      font-size: 2.75rem;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 1.5rem;
    }
    .hero .subtitle {
      font-size: 1.15rem;
      color: var(--bs-secondary);
      margin-bottom: 2rem;
    }
    .data-badge {
      background: white;
      border-radius: 20px;
      padding: 0.8rem 1.5rem;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--bs-box-shadow);
      margin-right: 1rem;
      margin-bottom: 1rem;
      color: var(--bs-text-primary);
    }
    .data-badge .number {
      font-size: 2rem;
      font-weight: 700;
      color: var(--bs-accent);
      font-family: var(--bs-font-serif);
      line-height: 1;
    }
    .data-badge .desc {
      font-size: 0.85rem;
      color: var(--bs-text-secondary);
    }
    .hero-image {
      border-radius: 20px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.2);
      width: 100%;
      height: auto;
      object-fit: cover;
    }
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2rem;
      }
      #hero {
        min-height: 80vh;
        text-align: center;
      }
      .hero-content {
        margin-bottom: 2rem;
      }
      .data-badge {
        margin-right: 0.5rem;
      }
    }

    /* 通用板块样式 */
    section {
      padding: 5rem 0;
    }
    .section-title {
      margin-bottom: 3rem;
    }
    .section-title h2 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--bs-primary);
      margin-bottom: 0.5rem;
    }
    .section-title .en-sub {
      font-family: var(--bs-font-serif);
      color: var(--bs-secondary);
      font-size: 0.9rem;
      letter-spacing: 2px;
      text-transform: uppercase;
    }
    .card-custom {
      background: var(--bs-card-bg);
      border: none;
      border-radius: var(--bs-border-radius);
      padding: 2rem;
      box-shadow: var(--bs-box-shadow);
      transition: var(--bs-transition);
      height: 100%;
    }
    .card-custom:hover {
      transform: translateY(-4px);
      box-shadow: var(--bs-box-shadow-hover);
    }
    .icon-circle {
      width: 64px;
      height: 64px;
      background: #F5EDE3;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--bs-secondary);
      font-size: 1.8rem;
      margin-bottom: 1.5rem;
      transition: background 0.3s;
    }
    .card-custom:hover .icon-circle {
      background: #e9dccd;
    }
    .divider {
      width: 40px;
      height: 2px;
      background: var(--bs-secondary);
      margin: 1rem 0;
    }
    .feature-img {
      border-radius: 20px;
      box-shadow: var(--bs-box-shadow);
      width: 100%;
      height: auto;
    }
    .pricing-card-highlight {
      border: 2px solid var(--bs-secondary);
      position: relative;
    }
    .badge-recommend {
      position: absolute;
      top: -12px;
      left: 20px;
      background: var(--bs-secondary);
      color: white;
      padding: 0.3rem 1.2rem;
      border-radius: 20px;
      font-size: 0.8rem;
    }
    .faq-accordion .card {
      background: white;
      border: 1px solid #EDE5DA;
      border-radius: 12px;
      margin-bottom: 0.8rem;
    }
    .faq-accordion .card-header {
      background: transparent;
      border-bottom: none;
      padding: 1rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--bs-primary);
      font-weight: 600;
    }
    .faq-accordion .card-body {
      color: var(--bs-text-secondary);
      padding: 0 1.5rem 1.5rem;
    }
    .faq-accordion .icon-toggle {
      color: var(--bs-accent);
      transition: transform 0.3s;
    }
    .cta-banner {
      background: linear-gradient(135deg, #3E2723 0%, #2C1F1B 100%);
      border-radius: 20px;
      padding: 3rem;
      color: white;
    }
    .footer {
      background: var(--bs-dark-bg);
      color: var(--bs-text-light);
      padding: 3rem 0 1.5rem;
    }
    .footer a {
      color: #C8A96E;
      transition: 0.2s;
    }
    .footer a:hover {
      color: white;
    }
    .copyright {
      border-top: 1px solid rgba(200,169,110,0.3);
      margin-top: 2rem;
      padding-top: 1.5rem;
      font-size: 0.85rem;
      color: #aaa;
    }
    input, textarea {
      border-radius: 10px !important;
      border: 1px solid #D6C9B8 !important;
      padding: 0.8rem 1rem;
    }
    input:focus, textarea:focus {
      border-color: var(--bs-secondary) !important;
      box-shadow: 0 0 0 0.2rem rgba(200,169,110,0.25) !important;
    }