/* roulang page: index */
:root {
      --bg-dark: #090B0E;
      --bg-surface: #111419;
      --bg-surface-elevated: #161A22;
      --bg-surface-light: #F4F6F9;
      --primary: #00FF87;
      --primary-hover: #00DF74;
      --primary-dim: rgba(0, 255, 135, 0.12);
      --secondary: #60EFFF;
      --accent-purple: #7928CA;
      --accent-red: #FF3366;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dark: #0F172A;
      --border: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(0, 255, 135, 0.3);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --font-family: system-ui, -apple-system, 'SF Pro Display', 'PingFang SC', 'Noto Sans SC', sans-serif;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-family);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部通知与导航 */
    .top-bar {
      background: #050709;
      border-bottom: 1px solid var(--border);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-status {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .dot-live {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--primary);
      display: inline-block;
    }

    header.main-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(9, 11, 14, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 20px;
      letter-spacing: -0.02em;
    }
    .brand-logo-badge {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #000;
      font-size: 11px;
      font-weight: 900;
      padding: 2px 6px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .header-cta-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #050709;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 20px rgba(0, 255, 135, 0.4);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      color: var(--text-main);
      border-color: var(--border);
    }
    .btn-outline:hover {
      border-color: var(--text-main);
      background: rgba(255, 255, 255, 0.05);
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 13px;
    }

    /* 统一 Section 通用样式 */
    section {
      padding: 84px 0;
      position: relative;
    }
    .section-darker {
      background: #080A0D;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .section-light-wrap {
      background: var(--bg-surface-light);
      color: var(--text-dark);
      border-top: 1px solid rgba(0, 0, 0, 0.08);
      border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .sub-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 10px;
    }
    .section-light-wrap .sub-tag {
      color: #0F5132;
    }
    .section-title {
      font-size: clamp(28px, 3.5vw, 42px);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
    }
    .section-light-wrap .section-desc {
      color: #475569;
    }

    /* 1. HERO 门户紧凑型 */
    .hero-section {
      padding: 60px 0 70px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 255, 135, 0.06), transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(96, 239, 255, 0.05), transparent 40%),
                  url('/assets/images/6ae67d63856bb527.jpg') center/cover no-repeat;
      position: relative;
      border-bottom: 1px solid var(--border);
    }
    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(9, 11, 14, 0.88);
      backdrop-filter: blur(2px);
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: 99px;
      font-size: 13px;
      color: var(--secondary);
      margin-bottom: 20px;
    }
    .hero-h1 {
      font-size: clamp(32px, 4.5vw, 54px);
      font-weight: 900;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #FFFFFF, var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 32px;
    }
    .hero-action-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-specs-row {
      display: flex;
      gap: 24px;
      border-top: 1px solid var(--border);
      padding-top: 24px;
    }
    .spec-item-num {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .spec-item-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 右侧 Faux 数据榜单 */
    .hero-card-panel {
      background: rgba(17, 20, 25, 0.95);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      position: relative;
    }
    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }
    .panel-title {
      font-size: 14px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .leaderboard-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .board-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.02);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.04);
      transition: var(--transition);
    }
    .board-row:hover {
      border-color: var(--border-highlight);
      transform: translateX(4px);
      background: rgba(0, 255, 135, 0.03);
    }
    .board-game-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .game-rank-idx {
      font-size: 14px;
      font-weight: 800;
      color: var(--secondary);
      width: 20px;
    }
    .game-name {
      font-size: 14px;
      font-weight: 600;
    }
    .game-stat-tag {
      font-size: 11px;
      color: var(--text-muted);
    }
    .board-val {
      text-align: right;
    }
    .board-fps {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
    }
    .board-ping {
      font-size: 11px;
      color: var(--secondary);
    }

    /* 2. 优惠阶梯板块 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .tier-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .tier-card.featured {
      border-color: var(--primary);
      background: linear-gradient(180deg, rgba(0, 255, 135, 0.06), var(--bg-surface));
    }
    .tier-card:hover {
      transform: translateY(-4px);
    }
    .tier-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #000;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: 20px;
    }
    .tier-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .tier-price {
      font-size: 32px;
      font-weight: 800;
      margin: 16px 0;
      color: var(--text-main);
    }
    .tier-price span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: normal;
    }
    .tier-feature-list {
      list-style: none;
      margin-bottom: 28px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .tier-feature-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .tier-feature-list li::before {
      content: '✓';
      color: var(--primary);
      font-weight: bold;
    }

    /* 3. 套餐对比矩阵 */
    .compare-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--bg-surface);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border);
    }
    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .check-icon {
      color: var(--primary);
      font-weight: bold;
    }
    .cross-icon {
      color: #64748B;
    }

    /* 4. 限时直通与爆款清单 */
    .flash-box {
      background: linear-gradient(135deg, rgba(121, 40, 202, 0.2), rgba(0, 255, 135, 0.1));
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 32px;
    }
    .flash-info-title {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    /* 5. 爆款清单 (Game Cards Grid) */
    .games-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .game-item-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .game-item-card:hover {
      border-color: var(--border-highlight);
      transform: translateY(-4px);
    }
    .game-card-thumb {
      height: 140px;
      position: relative;
    }
    .game-card-body {
      padding: 16px;
    }
    .game-card-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .game-card-param {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    /* 6. 前后对比 Before / After */
    .compare-stage {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .compare-col {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border);
    }
    .compare-col.before {
      border-left: 4px solid var(--accent-red);
    }
    .compare-col.after {
      border-left: 4px solid var(--primary);
    }
    .col-state-badge {
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      margin-bottom: 16px;
      display: inline-block;
      padding: 4px 8px;
      border-radius: 4px;
    }
    .before .col-state-badge { background: rgba(255, 51, 102, 0.15); color: var(--accent-red); }
    .after .col-state-badge { background: var(--primary-dim); color: var(--primary); }

    /* 7. 评价墙 (Reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #FFFFFF;
      color: #0F172A;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .user-avatar-faux {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #334155;
    }
    .review-content {
      font-size: 14px;
      line-height: 1.7;
      color: #334155;
      margin-bottom: 16px;
    }
    .review-meta {
      font-size: 12px;
      color: #64748B;
      border-top: 1px solid #E2E8F0;
      padding-top: 12px;
    }

    /* 8. 保障图标条 */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guar-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      background: var(--bg-surface);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
    }
    .guar-icon {
      font-size: 24px;
      color: var(--primary);
      flex-shrink: 0;
    }
    .guar-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .guar-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 9. 结果数据条 (Data Metrics) */
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-card {
      background: var(--bg-surface);
      padding: 32px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
    }
    .metric-number {
      font-size: clamp(32px, 3.8vw, 48px);
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 10. 六大核心优势 Bento 排版 */
    .bento-features {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .bento-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
    }
    .bento-card:hover {
      border-color: var(--border-highlight);
    }
    .bento-card.span-2 {
      grid-column: span 2;
    }
    .bento-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .bento-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 11. 实战故事与资讯指南网格 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-thumb {
      height: 140px;
    }
    .news-card-body {
      padding: 18px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-title {
      font-size: 15px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 10px;
    }
    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--secondary);
    }

    /* 12. 极简 FAQ 手风琴面板 */
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      transition: var(--transition);
    }
    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: rgba(0, 0, 0, 0.2);
    }
    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 13. 底部加购与终极收口引导 */
    .final-cta-wrap {
      background: radial-gradient(circle at center, rgba(0, 255, 135, 0.12), transparent 70%),
                  var(--bg-surface-elevated);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: clamp(40px, 6vw, 80px) 24px;
      text-align: center;
      position: relative;
    }
    .final-cta-title {
      font-size: clamp(26px, 3.5vw, 40px);
      font-weight: 800;
      margin-bottom: 16px;
    }
    .final-cta-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 620px;
      margin: 0 auto 32px;
    }

    /* 页脚 */
    footer.site-footer {
      background: #040507;
      border-top: 1px solid var(--border);
      padding: 64px 0 32px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-bottom {
      border-top: 1px solid var(--border);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 移动端菜单控制 */
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 24px;
      cursor: pointer;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .hero-card-panel { display: none; }
      .tier-grid, .reviews-grid, .bento-features { grid-template-columns: repeat(2, 1fr); }
      .bento-card.span-2 { grid-column: span 1; }
      .games-grid, .news-grid, .guarantee-bar, .metrics-row { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .mobile-toggle { display: block; }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 32px 24px;
        gap: 20px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
      }
      .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
      }
      .tier-grid, .compare-stage, .reviews-grid, .bento-features, .games-grid, .news-grid, .guarantee-bar, .metrics-row {
        grid-template-columns: 1fr;
      }
      .flash-box { flex-direction: column; text-align: center; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }