/* roulang page: index */
:root {
      --primary: #8B1A1A;
      --primary-dark: #6B1010;
      --secondary: #D4A843;
      --secondary-dark: #B8861F;
      --bg: #FDF8F2;
      --card-bg: #FFFFFF;
      --text: #2C1810;
      --text-muted: #5C4A3A;
      --border-light: #E8D9C5;
      --shadow-sm: 0 4px 12px rgba(139, 26, 26, 0.06);
      --shadow-md: 0 8px 24px rgba(139, 26, 26, 0.10);
      --shadow-lg: 0 12px 32px rgba(139, 26, 26, 0.15);
      --radius-card: 16px;
      --radius-btn: 999px;
      --transition: all 0.3s ease;
    }

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

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

    button, .btn {
      cursor: pointer;
      font-family: inherit;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
    }

    .container-main {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(139, 26, 26, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(212, 168, 67, 0.25);
      transition: var(--transition);
      box-shadow: 0 2px 15px rgba(0,0,0,0.12);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      background: linear-gradient(135deg, #F5E6B8 0%, #D4A843 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: 2px;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
    }

    .nav-links a {
      color: rgba(255,255,255,0.9);
      font-weight: 500;
      position: relative;
      padding: 0.3rem 0;
      font-size: 1rem;
      transition: var(--transition);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--secondary);
      transition: width 0.3s;
    }

    .nav-links a:hover {
      color: #fff;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-cta {
      background: linear-gradient(135deg, #D4A843 0%, #B8861F 100%);
      color: #fff !important;
      padding: 0.5rem 1.5rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(212,168,67,0.4);
      margin-left: 0.5rem;
      white-space: nowrap;
    }

    .nav-cta:hover {
      background: linear-gradient(135deg, #E5BE5A 0%, #C99730 100%);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(212,168,67,0.55);
    }

    .status-badge {
      background: #C72A2A;
      color: white;
      font-size: 0.7rem;
      padding: 0.2rem 0.7rem;
      border-radius: 20px;
      margin-left: 0.8rem;
      font-weight: 700;
      animation: pulse 1.5s infinite;
    }

    @keyframes pulse {
      0% { opacity: 1; }
      50% { opacity: 0.7; }
      100% { opacity: 1; }
    }

    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
      gap: 5px;
    }

    .hamburger span {
      width: 26px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* Hero */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: radial-gradient(circle at 20% 30%, rgba(139,26,26,0.95) 0%, #3A0A0A 100%);
      position: relative;
      overflow: hidden;
      padding-top: 80px;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.2;
      mix-blend-mode: overlay;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      align-items: center;
    }

    .hero-text h1 {
      font-size: 4rem;
      font-weight: 800;
      line-height: 1.2;
      color: #fff;
      margin-bottom: 1.2rem;
    }

    .gold-highlight {
      background: linear-gradient(135deg, #F9E076, #D4A843);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: 1.25rem;
      color: rgba(255,255,240,0.85);
      margin-bottom: 2rem;
      max-width: 90%;
    }

    .hero-btns {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #D4A843, #B8861F);
      color: #fff;
      border: none;
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 1.1rem;
      box-shadow: 0 8px 20px rgba(212,168,67,0.5);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #E5BE5A, #C99730);
      transform: translateY(-3px);
      box-shadow: 0 14px 28px rgba(212,168,67,0.6);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid #D4A843;
      color: #D4A843;
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 1.1rem;
    }

    .btn-outline:hover {
      background: rgba(212,168,67,0.12);
      border-color: #E5BE5A;
      color: #E5BE5A;
      transform: translateY(-2px);
    }

    .hero-image img {
      border-radius: 24px;
      box-shadow: 0 25px 50px rgba(0,0,0,0.5);
      width: 100%;
      height: auto;
    }

    /* 通用区块 */
    .section {
      padding: 5rem 0;
    }

    .section-title {
      font-size: 2.4rem;
      font-weight: 700;
      text-align: center;
      margin-bottom: 0.8rem;
      color: var(--primary);
    }

    .title-decor {
      width: 70px;
      height: 4px;
      background: linear-gradient(to right, #D4A843, #8B1A1A);
      margin: 0.5rem auto 2.5rem;
      border-radius: 4px;
    }

    .card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      height: 100%;
    }

    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }

    .badge-gold {
      background: #D4A843;
      color: #fff;
      font-size: 0.8rem;
      padding: 0.2rem 1rem;
      border-radius: 20px;
      font-weight: 600;
    }

    /* 优势卡片 */
    .adv-icon {
      font-size: 2.5rem;
      color: #D4A843;
      margin-bottom: 1rem;
    }

    .metric-badge {
      background: #8B1A1A;
      color: #F5E6B8;
      padding: 0.3rem 0.9rem;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
      display: inline-block;
      margin-top: 0.8rem;
    }

    /* 价格卡片高亮 */
    .price-highlight {
      border: 2px solid #D4A843;
      transform: scale(1.03);
      box-shadow: var(--shadow-md);
    }

    .popular-badge {
      background: #D4A843;
      color: #2C1810;
      padding: 0.2rem 1.2rem;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.8rem;
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 1.2rem 0;
    }

    .faq-question {
      font-weight: 700;
      font-size: 1.15rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      color: var(--text-muted);
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 0.8rem;
    }

    .faq-item.active .faq-question i {
      transform: rotate(180deg);
      color: #D4A843;
    }

    /* 最终CTA */
    .cta-section {
      background: linear-gradient(135deg, #8B1A1A 0%, #4A0B0B 100%);
      border-radius: 32px;
      padding: 4rem 2rem;
      text-align: center;
      color: white;
      margin: 3rem 0;
    }

    .footer {
      background: #2C1810;
      color: #C5B19A;
      padding: 3rem 0 1.5rem;
    }

    .footer a:hover {
      color: #D4A843;
    }

    @media (max-width: 1024px) {
      .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .hero-text h1 {
        font-size: 3rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(139,26,26,0.98);
        padding: 1.5rem;
        gap: 1.2rem;
      }
      .nav-links.active {
        display: flex;
      }
      .hamburger {
        display: flex;
      }
      .hero-text h1 {
        font-size: 2.5rem;
      }
      .section-title {
        font-size: 2rem;
      }
      .price-highlight {
        transform: none;
      }
    }