/* roulang page: index */
:root {
      --primary: #00FF88;
      --primary-hover: #05e67c;
      --primary-dim: rgba(0, 255, 136, 0.12);
      --accent-purple: #6366F1;
      --accent-amber: #F59E0B;
      --bg-dark: #0B0E14;
      --bg-card: #141A23;
      --bg-card-hover: #192230;
      --bg-alt: #10151E;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-active: rgba(0, 255, 136, 0.4);
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-lg: 8px;
      --transition-fast: all 0.25s ease-in-out;
    }

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

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.65;
      overflow-x: hidden;
    }

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

    .num-tabular {
      font-variant-numeric: tabular-nums;
      font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    }

    /* 顶部通栏 */
    .top-status-bar {
      background-color: #07090D;
      border-bottom: 1px solid var(--border-color);
      font-size: 12px;
      padding: 6px 0;
      color: var(--text-dim);
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
      animation: pulseDot 2s infinite;
    }
    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    /* 核心导航栏 */
    .site-nav {
      background: rgba(11, 14, 20, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition-fast);
    }
    .nav-brand-box {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.15rem;
      letter-spacing: -0.2px;
      color: var(--text-main);
    }
    .brand-icon-radar {
      width: 32px;
      height: 32px;
      border-radius: 6px;
      background: rgba(0, 255, 136, 0.1);
      border: 1px solid var(--border-active);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
    }
    .site-nav .nav-link {
      color: var(--text-muted);
      font-weight: 500;
      font-size: 14px;
      padding: 10px 14px !important;
      position: relative;
    }
    .site-nav .nav-link:hover, .site-nav .nav-link.active {
      color: var(--primary);
    }

    /* Mega Menu */
    .mega-menu-item {
      position: static;
    }
    .mega-dropdown-menu {
      background-color: var(--bg-card);
      border: 1px solid var(--border-active);
      border-radius: var(--radius-md);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
      padding: 24px;
      min-width: 680px;
      top: 100%;
      left: auto;
      right: 0;
      display: none;
    }
    @media (min-width: 992px) {
      .mega-menu-item:hover .mega-dropdown-menu {
        display: block;
      }
    }

    /* 按钮样式重塑 */
    .btn-cyber-primary {
      background: var(--primary);
      color: #05070A;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 22px;
      border: none;
      transition: var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-cyber-primary:hover {
      background: var(--primary-hover);
      color: #000;
      box-shadow: 0 0 20px rgba(0, 255, 136, 0.35);
      transform: translateY(-1px);
    }
    .btn-cyber-outline {
      background: transparent;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 22px;
      font-weight: 500;
      transition: var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-cyber-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-dim);
    }

    /* 全局 Section 规范 */
    .app-section {
      padding: 80px 0;
      position: relative;
    }
    .app-section-alt {
      background-color: var(--bg-alt);
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 4px;
      background: var(--primary-dim);
      border: 1px solid rgba(0, 255, 136, 0.25);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 12px;
    }
    .section-lead {
      color: var(--text-muted);
      font-size: 0.98rem;
      max-width: 680px;
      line-height: 1.7;
    }

    /* 暗黑科技卡片 */
    .cyber-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      transition: var(--transition-fast);
      position: relative;
    }
    .cyber-card:hover {
      border-color: rgba(0, 255, 136, 0.3);
      transform: translateY(-3px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45), 0 0 15px rgba(0, 255, 136, 0.08);
    }
    .cyber-card-media {
      overflow: hidden;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      margin-bottom: 16px;
    }
    .cyber-card-media img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: var(--transition-fast);
    }
    .cyber-card:hover .cyber-card-media img {
      transform: scale(1.04);
    }

    /* Hero：影视海报沉浸暗底 */
    .hero-cinematic {
      position: relative;
      min-height: 82vh;
      display: flex;
      align-items: center;
      background: linear-gradient(180deg, rgba(11, 14, 20, 0.72) 0%, rgba(11, 14, 20, 0.95) 75%, #0B0E14 100%),
                  url('/assets/images/cfe84688bbc7f7e7.jpg') center/cover no-repeat;
      padding: 100px 0 80px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-badge-tag {
      background: rgba(99, 102, 241, 0.18);
      border: 1px solid rgba(99, 102, 241, 0.4);
      color: #A5B4FC;
      padding: 5px 12px;
      font-size: 13px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 16px;
    }
    .hero-display-h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.2;
      color: #FFFFFF;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }
    .hero-display-p {
      color: #CBD5E1;
      font-size: 1.05rem;
      line-height: 1.75;
      margin-bottom: 30px;
      max-width: 620px;
    }
    .hero-dash-card {
      background: rgba(20, 26, 35, 0.85);
      border: 1px solid var(--border-active);
      border-radius: var(--radius-md);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(16px);
      padding: 24px;
    }
    .mini-kpi-block {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      padding: 14px;
    }

    /* 手风琴覆盖 */
    .accordion-item {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      margin-bottom: 12px;
      border-radius: var(--radius-sm) !important;
      overflow: hidden;
    }
    .accordion-button {
      background-color: var(--bg-card);
      color: var(--text-main);
      font-weight: 600;
      font-size: 1rem;
      padding: 18px 20px;
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      color: var(--primary);
      background-color: rgba(0, 255, 136, 0.05);
      border-bottom: 1px solid rgba(0, 255, 136, 0.2);
    }
    .accordion-button::after {
      filter: invert(1);
    }
    .accordion-body {
      background-color: var(--bg-card);
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
      padding: 20px;
    }

    /* 表单组件 */
    .cyber-input {
      background: #0B0E14;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      width: 100%;
    }
    .cyber-input:focus {
      background: #0E131C;
      border-color: var(--primary);
      outline: none;
      box-shadow: 0 0 10px rgba(0, 255, 136, 0.2);
      color: #fff;
    }

    /* 页脚 */
    .site-footer {
      background: #06080B;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      font-size: 14px;
      color: var(--text-dim);
    }
    .site-footer h6 {
      color: var(--text-main);
      font-weight: 600;
      font-size: 15px;
      margin-bottom: 18px;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }

    @media (max-width: 768px) {
      .hero-display-h1 {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.65rem;
      }
      .app-section {
        padding: 55px 0;
      }
    }