/* roulang page: index */
:root {
      --primary-deep: #0A3D2E;
      --accent-gold: #C9A96E;
      --accent-wine: #7B1A2B;
      --bg-warm-black: #1A1A1A;
      --card-bg: #242424;
      --text-ivory: #F5F0E8;
      --text-muted-gold: #B7A88A;
      --border-gold-soft: rgba(201,169,110,0.3);
      --shadow-gold: 0 4px 20px rgba(0,0,0,0.4), 0 1px 3px rgba(201,169,110,0.15);
      --radius-card: 8px;
      --radius-btn: 4px;
      --transition: 0.25s ease-in-out;
      --container-max: 1320px;
      --section-gap: 120px;
    }

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

    body {
      background-color: var(--bg-warm-black);
      color: var(--text-ivory);
      font-family: 'Noto Sans SC', 'Roboto', sans-serif;
      font-weight: 300;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 40px;
    }

    h1, h2, h3 {
      font-weight: 500;
    }

    h1 {
      font-family: 'Playfair Display', 'Noto Sans SC', serif;
      font-weight: 700;
      color: var(--text-ivory);
    }

    h2 {
      font-family: 'Noto Sans SC', sans-serif;
      font-weight: 500;
      color: var(--text-ivory);
    }

    a {
      color: var(--accent-gold);
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover {
      text-decoration: underline;
      text-underline-offset: 4px;
    }

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

    /* 导航 */
    .main-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(10, 61, 46, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-gold-soft);
      transition: background 0.3s, box-shadow 0.3s;
    }

    .main-header.scrolled {
      background: rgba(10, 61, 46, 0.98);
      box-shadow: 0 6px 18px rgba(0,0,0,0.6);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 40px;
      height: 72px;
    }

    .logo {
      font-family: 'Playfair Display', serif;
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--accent-gold);
      letter-spacing: 1px;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }
    .logo span {
      font-size: 1rem;
      font-weight: 400;
      color: var(--text-ivory);
      margin-left: 6px;
    }

    .nav-links {
      display: flex;
      gap: 2.2rem;
      align-items: center;
    }

    .nav-links a {
      color: var(--text-ivory);
      font-weight: 400;
      font-size: 0.95rem;
      position: relative;
      transition: color 0.2s;
    }

    .nav-links a:hover {
      color: var(--accent-gold);
      text-decoration: none;
    }

    .btn-gold {
      background: var(--accent-gold);
      color: #0A3D2E;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      border: none;
      font-size: 0.9rem;
      letter-spacing: 0.5px;
      transition: var(--transition);
      display: inline-block;
      cursor: pointer;
    }

    .btn-gold:hover {
      background: #B38B4A;
      box-shadow: 0 8px 18px rgba(201,169,110,0.4);
      transform: translateY(-2px);
      text-decoration: none;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
    }
    .hamburger span {
      width: 26px;
      height: 2px;
      background: var(--accent-gold);
      display: block;
    }

    @media (max-width: 1024px) {
      .nav-links {
        gap: 1.5rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: #0A3D2E;
        flex-direction: column;
        padding: 32px 20px;
        gap: 22px;
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        border-bottom: 2px solid var(--accent-gold);
      }
      .nav-links.active {
        transform: translateY(0);
      }
      .hamburger {
        display: flex;
      }
    }

    /* Hero */
    .hero {
      padding: 140px 0 80px;
      background: radial-gradient(circle at 20% 30%, #0A3D2E 0%, #1A1A1A 85%);
    }
    .hero-grid {
      display: flex;
      align-items: center;
      gap: 48px;
    }
    .hero-text {
      flex: 1 1 60%;
    }
    .hero-text h1 {
      font-size: 3.8rem;
      line-height: 1.15;
      margin-bottom: 20px;
    }
    .hero-text .sub {
      font-size: 1.25rem;
      color: var(--text-muted-gold);
      margin-bottom: 32px;
      max-width: 520px;
    }
    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--accent-gold);
      color: var(--accent-gold);
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-weight: 500;
      transition: var(--transition);
    }
    .btn-outline:hover {
      background: rgba(201,169,110,0.1);
      transform: translateY(-2px);
    }
    .hero-image {
      flex: 1 1 38%;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: 0 0 0 1px var(--border-gold-soft), var(--shadow-gold);
    }
    .hero-image img {
      width: 100%;
      object-fit: cover;
    }

    @media (max-width: 768px) {
      .hero-grid {
        flex-direction: column;
      }
      .hero-text h1 {
        font-size: 2.6rem;
      }
    }

    /* 章节通用 */
    section {
      padding: 100px 0;
    }
    .section-title {
      font-size: 2.3rem;
      margin-bottom: 48px;
      position: relative;
      display: inline-block;
    }
    .section-title::before {
      content: '';
      width: 44px;
      height: 2px;
      background: var(--accent-gold);
      display: inline-block;
      margin-right: 16px;
      vertical-align: middle;
    }

    /* 亮点网格 */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .highlight-card {
      background: var(--card-bg);
      padding: 36px 28px;
      border-radius: var(--radius-card);
      text-align: center;
      box-shadow: var(--shadow-gold);
      transition: var(--transition);
    }
    .highlight-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 28px rgba(0,0,0,0.5), 0 0 0 1px var(--border-gold-soft);
    }
    .big-number {
      font-family: 'Playfair Display', serif;
      font-size: 4.5rem;
      color: rgba(201,169,110,0.35);
      line-height: 1;
    }
    .highlight-card h3 {
      margin: 12px 0 10px;
    }

    /* 瀑布流游戏 */
    .games-masonry {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .game-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      overflow: hidden;
      transition: var(--transition);
    }
    .game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 0 0 1px var(--border-gold-soft);
    }
    .game-card img {
      height: 200px;
      object-fit: cover;
    }
    .game-info {
      padding: 20px;
    }
    .game-info h3 {
      margin-bottom: 8px;
    }

    @media (max-width: 768px) {
      .highlights-grid, .games-masonry {
        grid-template-columns: 1fr;
      }
    }

    /* VIP 方案 */
    .vip-plans {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .plan-card {
      background: var(--card-bg);
      padding: 32px 24px;
      border-radius: var(--radius-card);
      text-align: center;
    }
    .plan-card.premium {
      background: #0A3D2E;
      border: 1px solid var(--accent-gold);
    }
    .plan-list {
      list-style: none;
      margin: 24px 0;
      text-align: left;
    }
    .plan-list li::before {
      content: '✓';
      color: var(--accent-gold);
      margin-right: 8px;
    }

    /* FAQ */
    .faq-item {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      margin-bottom: 14px;
      padding: 18px 24px;
      cursor: pointer;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      font-weight: 500;
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(180deg, #0A3D2E 0%, #1A1A1A 100%);
      text-align: center;
    }
    .inline-form {
      display: flex;
      max-width: 480px;
      margin: 28px auto 0;
    }
    .inline-form input {
      flex: 1;
      background: #2A2A2A;
      border: 1px solid var(--accent-gold);
      padding: 12px 18px;
      color: white;
      border-radius: var(--radius-btn) 0 0 var(--radius-btn);
    }
    .inline-form button {
      border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
    }

    footer {
      background: #0D0D0D;
      border-top: 1px solid var(--accent-gold);
      padding: 48px 0 24px;
    }