/* roulang page: index */
:root {
      --bg-main: #0b0e14;
      --bg-card: #121721;
      --bg-card-alt: #18202e;
      --primary: #00f59b;
      --primary-hover: #00d686;
      --accent: #6366f1;
      --gold: #d4af37;
      --gold-light: #f7e7a9;
      --text-white: #ffffff;
      --text-gray: #94a3b8;
      --text-muted: #64748b;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-gold: rgba(212, 175, 55, 0.25);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-glow: 0 0 25px rgba(0, 245, 155, 0.15);
      --shadow-gold: 0 0 30px rgba(212, 175, 55, 0.18);
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-gray);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Top Bar */
    .top-bar {
      background: #06080d;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      padding: 7px 0;
      color: var(--text-muted);
    }
    .top-bar-flex {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }

    /* Main Nav Bar (SaaS Command Style) */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 14, 20, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }
    .logo-mark {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0b0e14;
      font-weight: 900;
      font-size: 20px;
      box-shadow: var(--shadow-glow);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-gray);
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-command-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .command-box {
      display: flex;
      align-items: center;
      background: #151b26;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: var(--radius-md);
      gap: 10px;
      color: var(--text-muted);
      font-size: 13px;
    }
    .kbd-shortcut {
      background: #232c3d;
      color: var(--text-gray);
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 11px;
      font-family: monospace;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .btn-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #05140f;
      font-size: 14px;
      font-weight: 700;
      padding: 9px 22px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-glow);
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
    }
    .btn-cta:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-gold {
      background: linear-gradient(135deg, #dfb744, #bf9324);
      color: #0d0a02;
      box-shadow: var(--shadow-gold);
      font-weight: 700;
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #edd064, #d1a52c);
      transform: translateY(-2px);
    }

    /* Section Global */
    section {
      padding: 85px 0;
      position: relative;
    }
    .section-alt {
      background-color: #0f131c;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 55px auto;
    }
    .section-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary);
      background: rgba(0, 245, 155, 0.08);
      border: 1px solid rgba(0, 245, 155, 0.2);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }
    .section-badge-gold {
      color: var(--gold-light);
      background: rgba(212, 175, 55, 0.1);
      border-color: var(--border-gold);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-gray);
      line-height: 1.7;
    }

    /* 01 Hero (Club Black-Gold) */
    .hero-section {
      padding: 95px 0 80px 0;
      background: radial-gradient(circle at 50% 10%, rgba(212, 175, 55, 0.08), transparent 50%),
                  url('/assets/images/ebb75ba59faf6727.jpg') center/cover no-repeat;
      position: relative;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(11, 14, 20, 0.88);
    }
    .hero-content-wrapper {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .vip-badge-row {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(212, 175, 55, 0.12);
      border: 1px solid var(--border-gold);
      padding: 6px 16px;
      border-radius: var(--radius-full);
      margin-bottom: 22px;
    }
    .vip-star {
      color: #ffd700;
      font-size: 14px;
    }
    .vip-text {
      color: var(--gold-light);
      font-size: 13px;
      font-weight: 600;
    }
    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-white);
      margin-bottom: 20px;
    }
    .hero-title span {
      background: linear-gradient(135deg, #fff, var(--gold-light));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 35px;
      flex-wrap: wrap;
    }
    .hero-meta-stats {
      display: flex;
      gap: 32px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }
    .hero-meta-item p:first-child {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 2px;
    }
    .hero-meta-item p:last-child {
      font-size: 12px;
      color: var(--text-muted);
    }
    .hero-club-card {
      background: linear-gradient(145deg, #18202f, #10141d);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-gold);
      position: relative;
    }
    .club-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 18px;
      margin-bottom: 20px;
    }
    .club-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--gold-light);
    }
    .club-tag {
      font-size: 12px;
      padding: 3px 10px;
      background: rgba(212, 175, 55, 0.15);
      border-radius: var(--radius-full);
      color: var(--gold-light);
    }
    .club-perks-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }
    .club-perks-list li {
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #e2e8f0;
    }
    .club-check {
      color: var(--primary);
      font-weight: bold;
    }

    /* 02 Flash Countdown Banner */
    .flash-sale-bar {
      background: linear-gradient(90deg, #1a1506, #291f09, #1a1506);
      border-top: 1px solid var(--border-gold);
      border-bottom: 1px solid var(--border-gold);
      padding: 24px 0;
    }
    .flash-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .flash-info-wrap {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .flash-badge {
      background: #e11d48;
      color: #fff;
      font-weight: 800;
      font-size: 12px;
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      letter-spacing: 1px;
    }
    .flash-title-txt {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-white);
    }
    .countdown-units {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .time-box {
      background: #090c12;
      border: 1px solid var(--border-gold);
      color: var(--gold-light);
      font-weight: 800;
      font-size: 18px;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      min-width: 48px;
      text-align: center;
    }
    .time-sep {
      color: var(--gold-light);
      font-weight: 700;
    }

    /* 03 Highlights Section */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: all 0.3s ease;
      position: relative;
    }
    .feature-card:hover {
      border-color: rgba(0, 245, 155, 0.4);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }
    .feature-icon-box {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: rgba(0, 245, 155, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
      font-size: 20px;
      font-weight: 800;
    }
    .feature-card h3 {
      font-size: 19px;
      color: var(--text-white);
      margin-bottom: 12px;
      font-weight: 700;
    }
    .feature-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-gray);
    }

    /* 04 VIP Perks Grid */
    .vip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .vip-card {
      background: linear-gradient(160deg, #161b26, #0e121a);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      transition: all 0.25s ease;
    }
    .vip-card:hover {
      border-color: var(--border-gold);
      transform: translateY(-3px);
    }
    .vip-level-tag {
      font-size: 11px;
      font-weight: 700;
      color: var(--gold-light);
      background: rgba(212, 175, 55, 0.15);
      padding: 3px 10px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 14px;
    }
    .vip-card h4 {
      font-size: 17px;
      color: var(--text-white);
      margin-bottom: 10px;
    }
    .vip-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 05 Step / Workflow */
    .steps-wrapper {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      position: relative;
    }
    .step-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
    }
    .step-number {
      font-size: 38px;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.1);
      position: absolute;
      top: 20px;
      right: 24px;
      line-height: 1;
    }
    .step-item h3 {
      font-size: 18px;
      color: var(--text-white);
      margin: 16px 0 10px 0;
    }
    .step-item p {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* 06 Rewards Showcase */
    .rewards-banner {
      background: url('/assets/images/716afac496e667c2.jpg') center/cover no-repeat;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      position: relative;
    }
    .rewards-overlay {
      background: linear-gradient(90deg, rgba(11, 14, 20, 0.95) 45%, rgba(11, 14, 20, 0.7) 100%);
      padding: 60px 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .rewards-overlay h3 {
      font-size: 28px;
      color: var(--text-white);
      margin-bottom: 16px;
      font-weight: 800;
    }
    .rewards-overlay p {
      font-size: 15px;
      color: #cbd5e1;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .reward-pill-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .reward-pill {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 8px 16px;
      border-radius: var(--radius-full);
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
    }

    /* 07 Multi-Platform Ecosystem */
    .platform-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .platform-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .platform-card:hover {
      border-color: rgba(99, 102, 241, 0.4);
      transform: translateY(-4px);
    }
    .platform-thumb {
      height: 190px;
      width: 100%;
      object-fit: cover;
    }
    .platform-body {
      padding: 24px;
    }
    .platform-body h3 {
      font-size: 18px;
      color: var(--text-white);
      margin-bottom: 10px;
    }
    .platform-body p {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* 08 Architecture & Deep Network */
    .tech-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .tech-panel {
      background: #141b27;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 34px;
    }
    .tech-spec-row {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 14px 0;
      font-size: 14px;
    }
    .tech-spec-row span:first-child {
      color: var(--text-muted);
    }
    .tech-spec-row span:last-child {
      color: var(--primary);
      font-weight: 700;
      font-family: monospace;
    }

    /* 09 Metrics Dashboard Strip */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 20px;
      text-align: center;
    }
    .metric-num {
      font-size: 38px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
      font-family: monospace;
    }
    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      letter-spacing: 0.5px;
    }

    /* 10 News & Knowledge */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card img {
      height: 170px;
      width: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .news-tag {
      font-size: 11px;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 8px;
      text-transform: uppercase;
    }
    .news-content h3 {
      font-size: 17px;
      color: var(--text-white);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 13px;
      color: var(--text-gray);
      line-height: 1.6;
      flex: 1;
      margin-bottom: 16px;
    }
    .news-anchor {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 11 Testimonials & Word of Mouth */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
    }
    .reviewer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }
    .reviewer-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
    }
    .review-ping-badge {
      font-size: 12px;
      background: rgba(0, 245, 155, 0.12);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-family: monospace;
    }
    .review-text {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .review-game {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 12 Sign-up / CTA Box */
    .cta-banner {
      background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.12), transparent 70%),
                  #131a26;
      border: 1px solid rgba(0, 245, 155, 0.25);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      box-shadow: var(--shadow-glow);
    }
    .cta-banner h2 {
      font-size: 34px;
      color: var(--text-white);
      margin-bottom: 16px;
      font-weight: 800;
    }
    .cta-banner p {
      max-width: 680px;
      margin: 0 auto 32px auto;
      font-size: 15px;
      color: var(--text-gray);
      line-height: 1.7;
    }
    .cta-button-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* Footer */
    footer {
      background: #07090e;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      color: var(--text-white);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: var(--text-muted);
    }
    .footer-col a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
      color: var(--text-muted);
      font-size: 13px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-content-wrapper {
        grid-template-columns: 1fr;
      }
      .grid-3, .steps-wrapper, .platform-grid, .news-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .vip-grid, .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .rewards-overlay {
        grid-template-columns: 1fr;
      }
      .tech-split {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links, .command-box {
        display: none;
      }
      .hero-title {
        font-size: 30px;
      }
      .grid-3, .steps-wrapper, .platform-grid, .news-grid, .reviews-grid, .vip-grid, .metrics-bar {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-meta-stats {
        flex-direction: column;
        gap: 16px;
      }
      .flash-inner {
        flex-direction: column;
        align-items: flex-start;
      }
    }