/* roulang page: index */
:root {
      --primary-deep: #0A5C36;
      --primary-bright: #0D7A48;
      --accent-gold: #C8A45C;
      --bg-warm: #FAF7F2;
      --card-bg: #FFFFFF;
      --dark-bg: #072E1C;
      --text-main: #1E1E1E;
      --text-muted: #5C5C5C;
      --border-light: #E0DDD5;
      --shadow-card: 0 4px 20px rgba(10, 92, 54, 0.06);
      --shadow-hover: 0 12px 32px rgba(10, 92, 54, 0.12);
      --radius-lg: 16px;
      --radius-md: 10px;
      --font-title: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
      --transition: all 0.25s ease;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--bg-warm);
      color: var(--text-main);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 28px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    h1, h2, h3 {
      font-family: var(--font-title);
      font-weight: 600;
    }
    h1 {
      font-size: 46px;
      font-weight: 700;
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    h2 {
      font-size: 34px;
      margin-bottom: 14px;
    }
    h3 {
      font-size: 22px;
      margin-bottom: 8px;
    }
    .text-gold {
      color: var(--accent-gold);
    }
    .text-muted {
      color: var(--text-muted);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 32px;
      border-radius: var(--radius-lg);
      font-weight: 600;
      font-size: 16px;
      transition: var(--transition);
      cursor: pointer;
      border: none;
      background: transparent;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary-deep), var(--primary-bright));
      color: white;
      box-shadow: 0 8px 18px rgba(10, 92, 54, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-bright), #0e8c52);
      box-shadow: 0 14px 26px rgba(10, 92, 54, 0.35);
      transform: translateY(-2px);
    }
    .btn-outline {
      border: 2px solid var(--primary-deep);
      color: var(--primary-deep);
      background: transparent;
    }
    .btn-outline:hover {
      background: var(--primary-deep);
      color: white;
      transform: translateY(-2px);
    }
    .btn-lg {
      padding: 18px 44px;
      font-size: 18px;
    }
    /* 导航 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 70px;
      background: transparent;
      z-index: 1000;
      transition: background 0.3s, box-shadow 0.3s;
      display: flex;
      align-items: center;
    }
    .header.scrolled {
      background: rgba(255, 255, 255, 0.96);
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      backdrop-filter: blur(6px);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .logo {
      font-family: var(--font-title);
      font-weight: 700;
      font-size: 24px;
      color: var(--primary-deep);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: 1px;
    }
    .logo i {
      font-size: 28px;
      color: var(--accent-gold);
    }
    .nav-links {
      display: flex;
      gap: 32px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 4px 0;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-deep);
      transition: width 0.25s;
    }
    .nav-links a:hover {
      color: var(--primary-deep);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 28px;
      color: var(--primary-deep);
      cursor: pointer;
    }
    /* 移动端导航 */
    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        height: 100vh;
        background: var(--primary-deep);
        flex-direction: column;
        padding: 80px 32px;
        gap: 28px;
        transition: right 0.3s;
        box-shadow: -8px 0 24px rgba(0,0,0,0.2);
      }
      .nav-links.active {
        right: 0;
      }
      .nav-links a {
        color: white;
        font-size: 18px;
      }
      .menu-toggle {
        display: block;
        z-index: 1100;
      }
    }
    /* Hero */
    .hero {
      min-height: 85vh;
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, var(--primary-deep) 0%, #0a4e2e 100%);
      color: white;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -20%;
      right: -10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(200,164,92,0.15) 0%, transparent 70%);
      border-radius: 50%;
    }
    .hero-grid {
      display: flex;
      align-items: center;
      gap: 60px;
      width: 100%;
    }
    .hero-left {
      flex: 1;
    }
    .hero-right {
      flex: 1;
      display: flex;
      justify-content: center;
    }
    .hero-right img {
      border-radius: 24px;
      box-shadow: 0 24px 48px rgba(0,0,0,0.4);
      max-width: 100%;
    }
    .hero h1 {
      color: white;
      margin-bottom: 20px;
    }
    .hero-sub {
      font-size: 19px;
      opacity: 0.9;
      margin-bottom: 32px;
    }
    .hero-btns {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    @media (max-width: 768px) {
      .hero-grid {
        flex-direction: column;
        text-align: center;
      }
      h1 {
        font-size: 34px;
      }
    }
    /* 数据条 */
    .stats-bar {
      background: white;
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-lg);
      padding: 24px 32px;
      display: flex;
      justify-content: space-around;
      margin-top: -50px;
      position: relative;
      z-index: 10;
      flex-wrap: wrap;
      gap: 20px;
    }
    .stat-item {
      text-align: center;
    }
    .stat-number {
      font-size: 34px;
      font-weight: 700;
      color: var(--primary-deep);
    }
    .section {
      padding: 100px 0;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .icon-circle {
      width: 48px;
      height: 48px;
      background: rgba(200,164,92,0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: var(--accent-gold);
      font-size: 24px;
    }
    /* 瀑布流 */
    .masonry {
      columns: 3;
      column-gap: 24px;
    }
    .game-card {
      break-inside: avoid;
      margin-bottom: 24px;
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .game-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .game-img {
      height: 200px;
      background-size: cover;
      background-position: center;
    }
    .game-info {
      padding: 20px;
    }
    .badge {
      background: #e6f4ec;
      color: var(--primary-deep);
      padding: 4px 12px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
    }
    /* 对比卡 */
    .compare-grid {
      display: flex;
      gap: 24px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .plan-card {
      background: white;
      border-radius: var(--radius-lg);
      padding: 32px;
      flex: 1;
      min-width: 260px;
      border: 1px solid var(--border-light);
      position: relative;
    }
    .plan-featured {
      border: 2px solid var(--primary-deep);
    }
    .plan-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent-gold);
      color: white;
      padding: 4px 16px;
      border-radius: 20px;
      font-weight: 600;
    }
    /* FAQ */
    .faq-item {
      background: #F4F2ED;
      border-radius: var(--radius-md);
      margin-bottom: 10px;
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: white;
      padding: 0 24px;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 18px 24px;
    }
    .cta-block {
      background: var(--dark-bg);
      padding: 90px 0;
      text-align: center;
      color: white;
    }
    footer {
      background: var(--dark-bg);
      color: #ccc;
      padding: 60px 0 30px;
    }
    @media (max-width: 1024px) {
      .grid-3 { grid-template-columns: repeat(2,1fr); }
      .masonry { columns: 2; }
    }
    @media (max-width: 768px) {
      .grid-3 { grid-template-columns: 1fr; }
      .masonry { columns: 1; }
      .stats-bar { flex-direction: column; }
    }