/* roulang page: index */
:root {
      --primary: #2E7D32;
      --primary-dark: #1B5E20;
      --accent: #FF8F00;
      --accent-light: #FFB74D;
      --bg-warm: #FAFAF5;
      --bg-spring: #F1F8E9;
      --bg-summer: #FFFFFF;
      --bg-autumn: #FFF8F0;
      --bg-winter: #F0F4F8;
      --text-dark: #1B1B1B;
      --text-mid: #5C5C5C;
      --text-light: #BDBDBD;
      --border-light: #E0E0E0;
      --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
      --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
      --radius-lg: 16px;
      --radius-btn: 50px;
      --radius-input: 8px;
      --transition: 0.3s ease;
      --nav-height: 72px;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-warm);
      color: var(--text-dark);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition);
    }
    button, .btn {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: none;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }
    /* 导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      height: var(--nav-height);
      background: transparent;
      transition: background var(--transition), box-shadow var(--transition);
      display: flex;
      align-items: center;
    }
    .site-header.scrolled {
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .logo {
      font-weight: 800;
      font-size: 1.8rem;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: color var(--transition);
      white-space: nowrap;
    }
    .scrolled .logo {
      color: var(--primary);
    }
    .logo-icon {
      font-size: 2rem;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    }
    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }
    .nav-links a {
      font-weight: 600;
      color: #fff;
      font-size: 1rem;
      position: relative;
      padding: 4px 0;
      transition: color var(--transition);
    }
    .scrolled .nav-links a {
      color: var(--text-dark);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width var(--transition);
    }
    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      padding: 8px;
      z-index: 1001;
    }
    .hamburger span {
      width: 28px;
      height: 3px;
      background: #fff;
      border-radius: 4px;
      transition: all var(--transition);
    }
    .scrolled .hamburger span {
      background: var(--text-dark);
    }
    .mobile-menu {
      display: none;
    }
    /* 板块通用 */
    section {
      padding: 100px 0;
    }
    .section-title {
      text-align: center;
      margin-bottom: 60px;
    }
    .section-title h2 {
      font-size: 2.4rem;
      font-weight: 800;
      letter-spacing: 1px;
      color: var(--text-dark);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-title p {
      color: var(--text-mid);
    }
    /* 按钮 */
    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-radius: var(--radius-btn);
      padding: 14px 34px;
      font-size: 1rem;
      box-shadow: 0 4px 12px rgba(46,125,50,0.3);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 8px 20px rgba(46,125,50,0.4);
    }
    .btn-outline {
      border: 2px solid var(--primary);
      color: var(--primary);
      background: transparent;
      border-radius: var(--radius-btn);
      padding: 14px 34px;
    }
    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
    }
    .btn-light {
      background: #fff;
      color: var(--primary);
      border-radius: var(--radius-btn);
      padding: 14px 34px;
      font-weight: 700;
    }
    /* Hero */
    .hero {
      height: 100vh;
      min-height: 700px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
      display: flex;
      align-items: center;
      color: #fff;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0; width: 100%; height: 100%;
      background: linear-gradient(135deg, rgba(46,125,50,0.75) 0%, rgba(0,0,0,0.3) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 700px;
    }
    .hero h1 {
      font-size: 3.5rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
    }
    .hero p {
      font-size: 1.25rem;
      margin-bottom: 36px;
      opacity: 0.9;
    }
    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    /* 优势卡片 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .advantage-card {
      background: #fff;
      padding: 32px 20px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      text-align: center;
      transition: all var(--transition);
    }
    .advantage-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .advantage-icon {
      font-size: 2.5rem;
      margin-bottom: 16px;
    }
    .advantage-card h3 {
      font-size: 1.25rem;
      margin-bottom: 8px;
    }
    /* 不规则网格场地 */
    .venue-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .venue-card {
      background: #fff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .venue-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .venue-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .venue-card:hover img {
      transform: scale(1.03);
    }
    .venue-card-content {
      padding: 20px;
    }
    .venue-card h3 {
      font-size: 1.3rem;
      margin-bottom: 8px;
    }
    .large-card {
      grid-column: span 2;
    }
    .large-card img {
      height: 240px;
    }
    /* 时间线场景 */
    .scene-track {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      padding-bottom: 12px;
    }
    .scene-card {
      min-width: 200px;
      background: #fff;
      padding: 24px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      text-align: center;
      flex: 1;
    }
    /* 会员故事 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #fff;
      padding: 28px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
    }
    /* 价格对比表 */
    .price-table {
      display: flex;
      background: #fff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .price-col {
      flex: 1;
      padding: 32px 20px;
      text-align: center;
      border-right: 1px solid #f0f0f0;
    }
    .price-col:last-child { border-right: none; }
    .price-col.highlight {
      background: #F1F8E9;
      position: relative;
    }
    .price-col h3 { font-size: 1.6rem; margin-bottom: 12px; }
    .price { font-size: 2.4rem; font-weight: 800; color: var(--primary); }
    /* FAQ */
    .faq-item {
      background: #fff;
      border-radius: var(--radius-input);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      background: #F5F5F0;
      border: none;
      font-size: 1.1rem;
    }
    .faq-answer {
      padding: 0 24px 18px;
      display: none;
      color: var(--text-mid);
    }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-question { background: #fff; border-left: 4px solid var(--primary); }
    /* CTA横幅 */
    .cta-banner {
      background: url('/assets/images/backpic/back-2.webp') center/cover;
      padding: 80px 0;
      text-align: center;
      color: #fff;
      position: relative;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      top:0;left:0;width:100%;height:100%;
      background: rgba(0,0,0,0.5);
    }
    .cta-banner .container { position: relative; z-index: 2; }
    /* 页脚 */
    .site-footer {
      background: #1B1B1B;
      color: #BDBDBD;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-links a { display: block; margin-bottom: 8px; }
    .footer-links a:hover { color: var(--primary); }
    @media (max-width: 1024px) {
      .advantages-grid { grid-template-columns: repeat(2,1fr); }
      .venue-grid { grid-template-columns: repeat(2,1fr); }
      .large-card { grid-column: span 2; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .mobile-menu {
        display: none; position: fixed; top:0;left:0;width:100%;height:100vh;
        background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
        flex-direction: column; justify-content: center; align-items: center; gap: 32px; z-index: 1000;
      }
      .mobile-menu.open { display: flex; }
      .mobile-menu a { font-size: 1.8rem; font-weight: 700; color: var(--text-dark); }
      .hero h1 { font-size: 2rem; }
      .advantages-grid, .testimonial-grid, .venue-grid { grid-template-columns: 1fr; }
      .large-card { grid-column: span 1; }
      .price-table { flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr; }
    }