/* roulang page: index */
:root {
      --primary: #1E3A2F;
      --primary-dark: #111915;
      --accent: #D4A373;
      --accent-hover: #bc8a59;
      --bg-light: #F7F8F6;
      --bg-white: #FFFFFF;
      --text-main: #0F1713;
      --text-muted: #4A5550;
      --text-light: #8C9690;
      --border-color: rgba(30, 58, 47, 0.1);
      --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      --radius-sm: 4px;
      --radius-md: 8px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    *, *::before, *::after {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      letter-spacing: -0.01em;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    /* 顶部微型系统条 */
    .top-meta-bar {
      background: var(--primary-dark);
      color: var(--text-light);
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .top-meta-bar .grid-x {
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #4ade80;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 8px rgba(74, 222, 128, 0.6);
    }

    /* 沉浸式毛玻璃主导航 */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(247, 248, 246, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .main-header.is-stuck {
      background: rgba(255, 255, 255, 0.98);
      box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    }
    .nav-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-brand {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .nav-brand-mark {
      width: 12px;
      height: 12px;
      background: var(--accent);
      border-radius: 2px;
      transform: rotate(45deg);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
    }

    /* 通用按钮 */
    .btn-solid-primary {
      background: var(--primary);
      color: #fff;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      border: 1px solid var(--primary);
      display: inline-block;
      text-align: center;
    }
    .btn-solid-primary:hover {
      background: #284c3e;
      color: #fff;
    }
    .btn-accent {
      background: var(--accent);
      color: #fff;
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid var(--accent);
      display: inline-block;
      text-align: center;
    }
    .btn-accent:hover {
      background: var(--accent-hover);
      color: #fff;
    }
    .btn-outline {
      border: 1px solid var(--border-color);
      background: transparent;
      color: var(--text-main);
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      display: inline-block;
      text-align: center;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 通用板块结构 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }
    .section-wrap.bg-white {
      background: var(--bg-white);
    }
    .section-wrap.bg-dark {
      background: var(--primary-dark);
      color: #e5e7eb;
    }
    .section-header {
      margin-bottom: 54px;
      max-width: 760px;
    }
    .section-header.text-center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 32px;
      line-height: 1.3;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .bg-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin: 0;
    }
    .bg-dark .section-desc {
      color: #9ca3af;
    }

    /* Hero：白皮书获客与沙盘系统调度 */
    .hero-banner {
      position: relative;
      background: linear-gradient(135deg, rgba(17, 25, 21, 0.94) 0%, rgba(30, 58, 47, 0.92) 100%), url('/assets/images/eef76187dbed8521.png') center/cover no-repeat;
      color: #ffffff;
      padding: 100px 0 80px;
    }
    .hero-h1 {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }
    .hero-lead {
      font-size: 17px;
      line-height: 1.85;
      color: #cbd5e1;
      margin-bottom: 32px;
      max-width: 620px;
    }
    .whitepaper-card {
      background: #ffffff;
      color: var(--text-main);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }
    .wp-badge {
      background: rgba(212, 163, 115, 0.15);
      color: #8c5d2e;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .wp-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .wp-outline-list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px 0;
      font-size: 14px;
      color: var(--text-muted);
    }
    .wp-outline-list li {
      padding: 6px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      justify-content: space-between;
    }
    .wp-form-input {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      padding: 0 14px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      margin-bottom: 12px;
      outline: none;
    }
    .wp-form-input:focus {
      border-color: var(--primary);
    }

    /* 卡片体系 */
    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(30, 58, 47, 0.25);
    }
    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: rgba(30, 58, 47, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-weight: 700;
      color: var(--primary);
      font-size: 20px;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .feature-card p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 旗舰游戏大卡 */
    .title-showcase-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .title-showcase-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: 0;
    }
    .title-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .title-meta-tag {
      font-size: 12px;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .title-card-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .title-card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      flex: 1;
      margin-bottom: 18px;
    }

    /* 三步上手流程 */
    .step-unit {
      text-align: left;
      position: relative;
      padding: 24px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      height: 100%;
    }
    .step-idx {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 12px;
      display: block;
    }
    .step-unit h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-unit p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* 众筹预热模块 (版式蓝图硬性要求) */
    .crowd-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }
    .progress-bar-custom {
      height: 10px;
      background: #e5e7eb;
      border-radius: 5px;
      overflow: hidden;
      margin: 16px 0 24px;
    }
    .progress-fill {
      height: 100%;
      background: var(--accent);
      width: 76%;
    }
    .tier-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px;
      background: var(--bg-light);
      margin-bottom: 16px;
    }
    .tier-box.active {
      border-color: var(--accent);
      background: rgba(212, 163, 115, 0.05);
    }

    /* 评价墙 */
    .testimonial-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--card-shadow);
      height: 100%;
    }
    .testi-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }
    .testi-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .testi-role {
      font-size: 12px;
      color: var(--text-light);
    }
    .testimonial-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 数据对比表格 */
    .comparison-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
      margin: 0;
    }
    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .comparison-table th {
      background: #f1f3ef;
      font-weight: 700;
      color: var(--text-main);
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }
    .comparison-table .highlight-col {
      background: rgba(30, 58, 47, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    /* 数据指标条 */
    .metrics-bar {
      background: var(--primary-dark);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 48px 0;
      color: #ffffff;
    }
    .metric-value {
      font-size: 38px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: inherit;
    }
    .metric-title {
      font-size: 14px;
      color: #9ca3af;
      margin: 0;
    }

    /* 资讯列表 */
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      flex: 1;
      margin-bottom: 16px;
    }

    /* 系统要求网格 */
    .sys-req-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .sys-req-box h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 14px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border-color);
    }
    .sys-req-list {
      list-style: none;
      padding: 0;
      margin: 0;
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .sys-req-list li {
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }

    /* 页脚 */
    .site-footer {
      background: #0d1410;
      color: #8c9690;
      font-size: 14px;
      padding: 80px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: #8c9690;
    }
    .footer-links-list a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 底部固定转化条 */
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(17, 25, 21, 0.95);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-top: 1px solid rgba(212, 163, 115, 0.3);
      padding: 12px 0;
      z-index: 99;
      color: #ffffff;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    }
    .sticky-bar-content {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .sticky-title {
      font-size: 15px;
      font-weight: 600;
    }
    .sticky-sub {
      font-size: 12px;
      color: #9ca3af;
      margin-left: 12px;
    }

    @media screen and (max-width: 768px) {
      .hero-banner {
        padding: 60px 0;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .nav-links {
        display: none;
      }
      .section-wrap {
        padding: 50px 0;
      }
      .section-title {
        font-size: 24px;
      }
      .sticky-sub {
        display: none;
      }
    }