/* roulang page: index */
:root {
      --bg-deep: #0E1117;
      --bg-card: #161B22;
      --bg-card-hover: #1F242C;
      --color-gold: #D4AF37;
      --color-gold-light: #F39C12;
      --color-purple: #8A2BE2;
      --color-cyan: #00E5FF;
      --text-main: #E6EDF3;
      --text-muted: #8B949E;
      --border-subtle: rgba(240, 246, 252, 0.1);
      --border-glow: rgba(212, 175, 55, 0.4);
      --sidebar-width: 260px;
    }
    * { box-sizing: border-box; }
    body {
      background-color: var(--bg-deep);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a { color: var(--color-gold); transition: all 0.25s ease; text-decoration: none; }
    a:hover, a:focus { color: var(--color-gold-light); text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; border-radius: 8px; }

    /* 左侧 App Shell 导航架构 */
    .app-sidebar {
      width: var(--sidebar-width);
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      background: #11141A;
      border-right: 1px solid var(--border-subtle);
      z-index: 100;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px 16px;
      overflow-y: auto;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .brand-icon {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--color-gold), var(--color-purple));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.3rem;
      box-shadow: 0 0 15px rgba(212, 175, 55, 0.35);
    }
    .brand-text { font-size: 1.15rem; font-weight: 700; color: #fff; letter-spacing: 0.5px; line-height: 1.3; }
    .brand-ver { font-size: 0.72rem; color: var(--color-cyan); display: inline-block; padding: 2px 6px; background: rgba(0,229,255,0.1); border-radius: 4px; margin-top: 4px; }
    
    .sidebar-menu { list-style: none; margin: 24px 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
    .sidebar-menu li a {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 14px;
      border-radius: 8px;
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
    }
    .sidebar-menu li a:hover, .sidebar-menu li a.active {
      color: #fff;
      background: rgba(212, 175, 55, 0.12);
      border-left: 3px solid var(--color-gold);
    }
    .sidebar-menu li a i { font-size: 1.1rem; width: 20px; text-align: center; }

    .sidebar-footer { padding-top: 16px; border-top: 1px solid var(--border-subtle); }
    .server-status { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
    .status-dot { width: 8px; height: 8px; background: #2ecc71; border-radius: 50%; box-shadow: 0 0 8px #2ecc71; }
    .btn-side-download {
      display: block;
      width: 100%;
      text-align: center;
      padding: 10px 0;
      background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
      color: #111;
      font-weight: 700;
      border-radius: 6px;
      font-size: 0.9rem;
    }

    /* 移动端双行导航 */
    .mobile-header {
      display: none;
      position: sticky;
      top: 0;
      z-index: 1001;
      background: #11141A;
      border-bottom: 1px solid var(--border-subtle);
    }
    .mobile-top-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
    }
    .mobile-sub-bar {
      background: #161B22;
      padding: 8px 16px;
      font-size: 0.8rem;
      color: var(--color-cyan);
      display: flex;
      align-items: center;
      gap: 8px;
      overflow-x: auto;
      white-space: nowrap;
      border-top: 1px solid rgba(255,255,255,0.05);
    }
    .off-canvas { background: #11141A; color: var(--text-main); }

    /* 主内容布局 */
    .app-main-content {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
      background: var(--bg-deep);
    }

    /* 公共 UI 组件 */
    .section-wrap {
      padding: 70px 30px;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }
    .section-alt { background-color: #12161E; }
    .section-heading-box {
      max-width: 800px;
      margin: 0 auto 50px auto;
      text-align: center;
    }
    .sec-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--color-gold);
      background: rgba(212, 175, 55, 0.12);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 14px;
      letter-spacing: 1px;
      border: 1px solid rgba(212, 175, 55, 0.25);
    }
    .sec-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .sec-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin: 0 auto;
    }

    /* 卡片体系 */
    .game-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
      position: relative;
    }
    .game-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-glow);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(212, 175, 55, 0.15);
    }

    /* 按钮组 */
    .btn-gold {
      background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
      color: #0E1117;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
      cursor: pointer;
    }
    .btn-gold:hover {
      color: #000;
      box-shadow: 0 6px 22px rgba(212, 175, 55, 0.5);
      transform: translateY(-2px);
    }
    .btn-ghost {
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      padding: 12px 28px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.03);
    }
    .btn-ghost:hover {
      border-color: var(--color-gold);
      color: var(--color-gold);
      background: rgba(212, 175, 55, 0.08);
    }

    /* Hero 专属样式 */
    .hero-container {
      background: radial-gradient(circle at 75% 30%, rgba(138, 43, 226, 0.18), transparent 60%),
                  radial-gradient(circle at 20% 70%, rgba(212, 175, 55, 0.12), transparent 50%),
                  url('/assets/images/eddf66cb78c81ef8.jpg') center/cover no-repeat;
      position: relative;
      padding: 90px 40px;
    }
    .hero-container::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(14, 17, 23, 0.88);
      z-index: 1;
    }
    .hero-content-inner { position: relative; z-index: 2; }
    .hero-h1 { font-size: 2.85rem; font-weight: 800; color: #fff; line-height: 1.25; margin-bottom: 20px; }
    .hero-h1 span { color: var(--color-gold); }
    .hero-team-tag {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(0, 229, 255, 0.12);
      border: 1px solid rgba(0, 229, 255, 0.3);
      padding: 6px 14px;
      border-radius: 20px;
      color: var(--color-cyan);
      font-size: 0.85rem;
      margin-bottom: 24px;
    }
    .hero-summary { font-size: 1.08rem; color: #C9D1D9; line-height: 1.85; margin-bottom: 32px; max-width: 660px; }
    .hero-card-showcase {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      position: relative;
    }
    .mini-card-item {
      background: rgba(22, 27, 34, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 16px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    }
    .mini-card-item img { height: 160px; width: 100%; object-fit: cover; border-radius: 6px; margin-bottom: 10px; }
    .card-meta-line { display: flex; justify-content: space-between; font-size: 0.82rem; color: var(--color-gold); font-weight: 600; }

    /* 痛点区 */
    .pain-card {
      background: rgba(30, 20, 25, 0.5);
      border: 1px solid rgba(255, 75, 75, 0.2);
      border-radius: 10px;
      padding: 24px;
      height: 100%;
    }
    .pain-icon { font-size: 1.8rem; color: #ff5252; margin-bottom: 14px; }
    .pain-title { font-size: 1.15rem; color: #ffcdd2; font-weight: 600; margin-bottom: 10px; }
    .pain-desc { font-size: 0.9rem; color: #a19da2; margin: 0; line-height: 1.65; }

    /* 硬核参数条 */
    .stat-counter-strip {
      background: linear-gradient(90deg, #161B22 0%, #1A222D 100%);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      padding: 40px 20px;
    }
    .stat-num {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--color-gold);
      line-height: 1.2;
      font-family: monospace, sans-serif;
    }
    .stat-lbl { font-size: 0.9rem; color: var(--text-muted); margin-top: 6px; }

    /* 步骤流程 */
    .step-node {
      position: relative;
      padding: 24px;
      background: var(--bg-card);
      border-radius: 10px;
      border: 1px solid var(--border-subtle);
      height: 100%;
    }
    .step-idx {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--color-gold);
      color: #0E1117;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    /* 手风琴常见问题 */
    .accordion-item {
      background: var(--bg-card) !important;
      border: 1px solid var(--border-subtle) !important;
      margin-bottom: 12px;
      border-radius: 8px !important;
      overflow: hidden;
    }
    .accordion-title {
      background: var(--bg-card) !important;
      color: #fff !important;
      font-size: 1.05rem !important;
      font-weight: 600 !important;
      padding: 18px 24px !important;
      border: none !important;
    }
    .accordion-title:hover { background: var(--bg-card-hover) !important; color: var(--color-gold) !important; }
    .accordion-content {
      background: #11151C !important;
      color: var(--text-muted) !important;
      font-size: 0.95rem !important;
      line-height: 1.8 !important;
      padding: 20px 24px !important;
      border: none !important;
    }

    /* 页脚 */
    .app-footer {
      background: #090B0E;
      padding: 60px 40px 30px 40px;
      border-top: 1px solid var(--border-subtle);
    }
    .footer-col-title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 18px; position: relative; }
    .footer-links { list-style: none; margin: 0; padding: 0; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a { color: var(--text-muted); font-size: 0.9rem; }
    .footer-links a:hover { color: var(--color-gold); }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,0.06);
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 响应式调整 */
    @media (max-width: 1023px) {
      .app-sidebar { display: none; }
      .app-main-content { margin-left: 0; }
      .mobile-header { display: block; }
      .hero-container { padding: 50px 20px; }
      .section-wrap { padding: 50px 16px; }
      .hero-h1 { font-size: 2.1rem; }
      .sec-title { font-size: 1.65rem; }
    }