/* roulang page: index */
:root {
      --bs-primary: #E8452D;
      --bs-primary-rgb: 232, 69, 45;
      --bs-body-bg: #F5F0EB;
      --bs-body-color: #1E1E24;
      --bs-border-radius: 0.5rem;
      --bs-btn-bg: #E8452D;
      --bs-btn-border-color: #E8452D;
      --bs-btn-hover-bg: #C93A24;
      --bs-btn-hover-border-color: #C93A24;
      --bs-btn-active-bg: #B03220;
      --bs-btn-active-border-color: #B03220;
      --bs-link-color: #E8452D;
      --bs-link-hover-color: #C93A24;
      --tv-bg-light: #F5F0EB;
      --tv-bg-white: #FFFFFF;
      --tv-text-dark: #1E1E24;
      --tv-text-muted: #6C6A67;
      --tv-border-light: #E8E3DE;
      --tv-accent-gold: #D4A843;
      --tv-accent-red: #E8452D;
      --tv-accent-red-light: #FEF4F2;
      --tv-shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
      --tv-shadow-hover: 0 8px 24px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
      --tv-radius-card: 12px;
      --tv-radius-btn: 8px;
      --tv-radius-input: 6px;
      --tv-radius-img: 20px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --font-number: "Inter", "SF Pro Display", sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bs-body-bg);
      color: var(--bs-body-color);
      line-height: 1.75;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4, .h1, .h2, .h3, .h4 {
      font-weight: 700;
      letter-spacing: -0.3px;
      color: var(--tv-text-dark);
    }
    h1 {
      font-size: 3rem;
      line-height: 1.2;
      font-weight: 700;
    }
    h2 {
      font-size: 2.25rem;
      line-height: 1.3;
    }
    h3 {
      font-size: 1.5rem;
      font-weight: 600;
      line-height: 1.4;
    }
    p {
      font-size: 1.05rem;
      color: var(--tv-text-muted);
    }
    .text-gold {
      color: var(--tv-accent-gold);
    }
    .bg-accent-red {
      background-color: var(--tv-accent-red);
    }
    .btn-primary {
      background-color: var(--tv-accent-red);
      border-color: var(--tv-accent-red);
      color: white;
      font-weight: 600;
      padding: 0.75rem 1.8rem;
      border-radius: var(--tv-radius-btn);
      transition: all 0.2s ease;
      font-size: 1rem;
      letter-spacing: 0.3px;
    }
    .btn-primary:hover {
      background-color: #C93A24;
      border-color: #C93A24;
      box-shadow: 0 4px 10px rgba(232,69,45,0.3);
    }
    .btn-outline-accent {
      background: transparent;
      border: 1px solid var(--tv-accent-red);
      color: var(--tv-accent-red);
      font-weight: 600;
      padding: 0.75rem 1.8rem;
      border-radius: var(--tv-radius-btn);
      transition: all 0.2s;
    }
    .btn-outline-accent:hover {
      background-color: var(--tv-accent-red-light);
      border-color: var(--tv-accent-red);
      color: var(--tv-accent-red);
    }
    a {
      color: var(--bs-link-color);
      text-decoration: none;
      transition: color 0.2s, border-bottom 0.2s;
    }
    a:hover {
      color: #C93A24;
      border-bottom: 1px solid var(--tv-accent-red);
    }
    .navbar {
      background-color: #FFFFFF;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
      border-bottom: 1px solid var(--tv-border-light);
      padding: 0.5rem 0;
      height: 72px;
    }
    .navbar-brand {
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--tv-text-dark) !important;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .navbar-brand i {
      font-size: 1.8rem;
      color: var(--tv-accent-red);
    }
    .nav-link {
      color: var(--tv-text-dark) !important;
      font-weight: 500;
      font-size: 0.95rem;
      margin: 0 0.25rem;
      padding: 0.5rem 1rem !important;
      transition: 0.2s;
      border-bottom: 2px solid transparent;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--tv-accent-red) !important;
      border-bottom: 2px solid var(--tv-accent-red);
    }
    .search-box {
      background: #F5F0EB;
      border-radius: 20px;
      padding: 0.3rem 1rem;
      display: flex;
      align-items: center;
      border: 1px solid transparent;
    }
    .search-box input {
      border: none;
      background: transparent;
      outline: none;
      width: 140px;
      font-size: 0.9rem;
    }
    .search-box i {
      color: #6C6A67;
      margin-right: 6px;
    }
    @media (max-width: 991px) {
      .navbar-nav {
        background: white;
        padding: 1rem;
        border-radius: 12px;
        box-shadow: var(--tv-shadow-hover);
      }
      .search-box {
        width: 100%;
        margin: 0.5rem 0;
      }
    }
    .hero-image-container {
      border-radius: var(--tv-radius-img);
      overflow: hidden;
      height: 420px;
      background: linear-gradient(135deg, rgba(232,69,45,0.06) 0%, rgba(212,168,67,0.05) 100%);
    }
    .hero-image-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .section-title {
      position: relative;
      margin-bottom: 2.5rem;
      font-weight: 700;
    }
    .section-title:after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background: var(--tv-accent-red);
      margin-top: 0.5rem;
      border-radius: 2px;
    }
    .advantage-icon {
      width: 52px;
      height: 52px;
      background: var(--tv-accent-red);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.5rem;
      margin-bottom: 1rem;
    }
    .advantage-item {
      background: transparent;
      padding: 1.2rem 0.5rem;
      border-bottom: 1px dashed var(--tv-border-light);
    }
    .card-magazine {
      background: #FFFFFF;
      border: 1px solid var(--tv-border-light);
      border-radius: var(--tv-radius-card);
      overflow: hidden;
      transition: all 0.25s ease;
      box-shadow: var(--tv-shadow-sm);
      margin-bottom: 2rem;
    }
    .card-magazine:hover {
      transform: translateY(-4px);
      box-shadow: var(--tv-shadow-hover);
      border-color: var(--tv-accent-red);
    }
    .card-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .card-magazine:hover .card-img-wrap img {
      transform: scale(1.03);
    }
    .badge-gold {
      background: var(--tv-accent-gold);
      color: #1E1E24;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.2rem 0.8rem;
      border-radius: 20px;
      position: absolute;
      top: 12px;
      left: 12px;
    }
    .comparison-card {
      background: white;
      border-radius: var(--tv-radius-card);
      padding: 2rem;
      border: 1px solid var(--tv-border-light);
    }
    .comparison-card.left {
      border-left: 4px solid #B0ADAA;
    }
    .comparison-card.right {
      border-left: 4px solid var(--tv-accent-red);
      background: #FFFBF9;
    }
    .accordion-button {
      background: white;
      font-weight: 600;
      font-size: 1.1rem;
      color: var(--tv-text-dark);
      box-shadow: none;
      border: 1px solid var(--tv-border-light);
      border-radius: var(--tv-radius-card) !important;
      padding: 1rem 1.5rem;
    }
    .accordion-button:not(.collapsed) {
      background-color: var(--tv-accent-red-light);
      color: var(--tv-accent-red);
      border-color: var(--tv-accent-red);
    }
    .accordion-button:focus {
      box-shadow: 0 0 0 2px rgba(232,69,45,0.25);
    }
    .cta-section {
      background: #1E1E24;
      border-radius: 0;
    }
    .footer {
      background: #1E1E24;
      color: #B0ADAA;
    }
    .footer a {
      color: #B0ADAA;
      text-decoration: none;
    }
    .footer a:hover {
      color: var(--tv-accent-red);
      border-bottom: 1px solid var(--tv-accent-red);
    }
    .social-icon {
      width: 36px;
      height: 36px;
      border: 1px solid #B0ADAA;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-right: 8px;
      color: #B0ADAA;
      transition: 0.2s;
    }
    .social-icon:hover {
      border-color: var(--tv-accent-red);
      color: var(--tv-accent-red);
    }
    @media (max-width: 768px) {
      h1 { font-size: 2.4rem; }
      h2 { font-size: 1.8rem; }
      .hero-image-container { height: 280px; margin-top: 1.5rem; }
    }