/* roulang page: index */
:root {
      --bg-dark: #080c0a;
      --bg-surface: #0f1713;
      --bg-card: #15221b;
      --bg-card-hover: #1b2d24;
      --primary: #00ff87;
      --primary-hover: #1aff96;
      --primary-dim: rgba(0, 255, 135, 0.12);
      --secondary: #60efff;
      --accent-purple: #7928ca;
      --text-white: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 255, 135, 0.35);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
      --container-max: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background-color: var(--bg-dark);
      color: var(--text-white);
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(8, 12, 10, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      transition: var(--transition);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.3rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-white);
    }

    .brand-logo .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 12px var(--primary);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }

    .nav-menu a {
      color: var(--text-muted);
      font-size: 15px;
      font-weight: 500;
    }

    .nav-menu a:hover {
      color: var(--primary);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 600;
      padding: 11px 24px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #041009;
      box-shadow: 0 0 20px rgba(0, 255, 135, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 26px rgba(0, 255, 135, 0.45);
      transform: translateY(-1px);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--border-subtle);
      color: var(--text-white);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--secondary);
    }

    /* 移动端菜单切换 */
    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-white);
      font-size: 24px;
      cursor: pointer;
    }

    /* 板块公用规范 */
    .section-block {
      padding: 96px 0;
      position: relative;
    }

    .section-block.bg-alt {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .section-header {
      margin-bottom: 56px;
    }

    .section-header.text-center {
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: var(--primary-dim);
      border: 1px solid rgba(0, 255, 135, 0.24);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 16px;
    }

    .section-title {
      font-size: clamp(1.85rem, 3.2vw, 2.6rem);
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 18px;
      letter-spacing: -0.01em;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero 沉浸暗底海报 */
    .hero-section {
      position: relative;
      padding: 110px 0 100px;
      overflow: hidden;
      background-image: linear-gradient(180deg, rgba(8, 12, 10, 0.72) 0%, #080c0a 100%), url('/assets/images/2b074b12c0def12a.jpg');
      background-size: cover;
      background-position: center;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: center;
    }

    .hero-h1 {
      font-size: clamp(2.3rem, 4.4vw, 3.6rem);
      font-weight: 900;
      line-height: 1.16;
      margin-bottom: 24px;
      letter-spacing: -0.02em;
    }

    .hero-h1 span {
      background: linear-gradient(90deg, #00ff87 0%, #60efff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 17px;
      color: #cbd5e1;
      line-height: 1.75;
      margin-bottom: 36px;
      max-width: 650px;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      align-items: center;
      margin-bottom: 36px;
    }

    .hero-badge-strip {
      display: flex;
      align-items: center;
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
    }

    .badge-metric {
      display: flex;
      flex-direction: column;
    }

    .badge-metric .num {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
    }

    .badge-metric .label {
      font-size: 13px;
      color: var(--text-dim);
    }

    .hero-poster-frame {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 10px;
      background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(0,255,135,0.06));
      border: 1px solid var(--border-glow);
      box-shadow: 0 24px 60px rgba(0,0,0,0.6);
    }

    .hero-poster-frame img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .poster-live-tag {
      position: absolute;
      top: 24px;
      left: 24px;
      background: rgba(0,0,0,0.75);
      backdrop-filter: blur(8px);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid rgba(0,255,135,0.4);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .live-pulse {
      width: 8px;
      height: 8px;
      background: #00ff87;
      border-radius: 50%;
      box-shadow: 0 0 8px #00ff87;
    }

    /* 2. 优惠阶梯 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .tier-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .tier-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .tier-card.featured {
      background: linear-gradient(180deg, #182b21 0%, #111e17 100%);
      border-color: var(--primary);
      box-shadow: 0 16px 40px rgba(0, 255, 135, 0.08);
    }

    .tier-tag {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #05140d;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 12px;
    }

    .tier-level {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .tier-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-white);
      margin-bottom: 16px;
    }

    .tier-price span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: normal;
    }

    .tier-points {
      list-style: none;
      margin-bottom: 32px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .tier-points li {
      font-size: 14px;
      color: #cbd5e1;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .tier-points li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    /* 3. 套餐对比矩阵 */
    .compare-table-wrapper {
      overflow-x: auto;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 720px;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-subtle);
    }

    .compare-table th {
      background: rgba(255, 255, 255, 0.03);
      font-weight: 700;
      color: var(--text-white);
    }

    .compare-table td {
      color: #cbd5e1;
      font-size: 15px;
    }

    .compare-table tr:hover td {
      background: rgba(0, 255, 135, 0.03);
    }

    /* 4. 限时入口 */
    .promo-banner {
      background: linear-gradient(135deg, #10241b 0%, #0d171e 100%);
      border: 1px solid rgba(0, 255, 135, 0.3);
      border-radius: var(--radius-lg);
      padding: 48px;
      display: grid;
      grid-template-columns: 1.4fr 0.8fr;
      align-items: center;
      gap: 40px;
    }

    .promo-timer {
      display: flex;
      gap: 16px;
      margin: 20px 0;
    }

    .timer-box {
      background: rgba(0, 0, 0, 0.5);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 10px 16px;
      text-align: center;
    }

    .timer-box .val {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
      display: block;
    }

    .timer-box .lbl {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 5. 爆款清单 (卡片流) */
    .bestseller-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .game-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .game-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
    }

    .game-thumb {
      position: relative;
      height: 180px;
      overflow: hidden;
    }

    .game-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .game-card:hover .game-thumb img {
      transform: scale(1.06);
    }

    .game-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      font-size: 12px;
      background: rgba(0, 0, 0, 0.7);
      padding: 3px 10px;
      border-radius: 6px;
      color: var(--secondary);
      border: 1px solid rgba(96, 239, 255, 0.3);
    }

    .game-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .game-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .game-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    /* 6. 评价墙 (口碑气泡) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testi-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-subtle);
      position: relative;
    }

    .stars {
      color: #ffd166;
      margin-bottom: 14px;
      font-size: 15px;
    }

    .testi-text {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .user-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #1e3328;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid var(--primary);
    }

    .user-meta h4 {
      font-size: 15px;
      font-weight: 600;
    }

    .user-meta p {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 7. 保障图标条 */
    .guarantee-strip {
      background: #0f1c16;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 32px 40px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
    }

    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }

    .g-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 255, 135, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      flex-shrink: 0;
    }

    .g-content h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .g-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 8. 解决方案深度解构 (非对称图文) */
    .solution-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .split-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
    }

    .split-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .tech-specs-box {
      margin-top: 24px;
      background: var(--bg-card);
      padding: 20px;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--primary);
    }

    .tech-specs-box p {
      font-size: 14px;
      color: #94a3b8;
    }

    /* 9. 空间计算工作流 (步骤条) */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(0, 255, 135, 0.12);
      border: 1px solid var(--primary);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      margin-bottom: 20px;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 资讯动态摘要 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .news-card:hover {
      border-color: var(--primary);
    }

    .news-card-img {
      height: 190px;
      overflow: hidden;
    }

    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-card-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-meta {
      font-size: 13px;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .news-card-body h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. FAQ 常见问题手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 16px;
      font-weight: 600;
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 12. 加购引导与收口表单 (底部全局行动区) */
    .cta-conversion-box {
      background: radial-gradient(circle at 50% 0%, #153123 0%, #0d1612 100%);
      border: 1px solid rgba(0, 255, 135, 0.4);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    }

    .cta-flex-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .booking-form {
      background: rgba(8, 12, 10, 0.7);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      color: #cbd5e1;      font-weight: 500;
    }

    .form-control {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      color: var(--text-white);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px rgba(0, 255, 135, 0.2);
    }

    /* 页脚 */
    .site-footer {
      background: #050806;
      border-top: 1px solid var(--border-subtle);
      padding: 72px 0 32px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 56px;
    }

    .footer-col h4 {
      color: var(--text-white);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid,
      .solution-split,
      .cta-flex-grid,
      .promo-banner {
        grid-template-columns: 1fr;
      }
      .bestseller-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-strip,
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-poster-frame img {
        height: 320px;
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .tier-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: 1fr;
      }
      .bestseller-grid,
      .guarantee-strip,
      .step-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .promo-banner {
        padding: 32px 24px;
      }
      .cta-conversion-box {
        padding: 40px 24px;
      }
    }