/* roulang page: index */
:root {
      --primary-dark: #101820;
      --primary-navy: #1b2838;
      --primary-slate: #2a475e;
      --accent-amber: #c5a059;
      --accent-gold: #dfb86c;
      --accent-copper: #bd3929;
      --bg-body: #f4f6f8;
      --bg-card: #ffffff;
      --bg-muted: #e9ecef;
      --text-main: #24292f;
      --text-muted: #57606a;
      --text-light: #f0f6fc;
      --border-color: #d0d7de;
      --border-gold: rgba(197, 160, 89, 0.35);
      --card-radius: 6px;
      --btn-radius: 4px;
      --shadow-sm: 0 2px 8px rgba(16, 24, 32, 0.06);
      --shadow-md: 0 6px 18px rgba(16, 24, 32, 0.08);
      --shadow-hover: 0 12px 28px rgba(27, 40, 56, 0.16);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

    /* 顶部信息条 */
    .top-meta-bar {
      background-color: var(--primary-dark);
      color: #8b949e;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 6px 0;
    }
    .top-meta-bar a {
      color: #c9d1d9;
    }
    .top-meta-bar a:hover {
      color: var(--accent-amber);
    }

    /* 主导航 */
    .site-header {
      background-color: rgba(27, 40, 56, 0.98);
      backdrop-filter: blur(8px);
      border-bottom: 2px solid var(--accent-amber);
      position: sticky;
      top: 0;
      z-index: 1030;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    }
    .navbar-brand-custom {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: 0.5px;
    }
    .brand-crest {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      color: var(--primary-dark);
      border-radius: var(--btn-radius);
      font-size: 1rem;
      font-weight: 900;
    }
    .navbar-nav .nav-link {
      color: #c5d1de;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.5rem 0.85rem;
      transition: var(--transition);
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--accent-gold);
    }

    /* 按钮定制 */
    .btn-tactical {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--btn-radius);
      background: linear-gradient(135deg, #c5a059 0%, #b38b43 100%);
      color: #0d131a;
      border: 1px solid #dfb86c;
      box-shadow: 0 2px 6px rgba(197, 160, 89, 0.3);
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-tactical:hover {
      background: linear-gradient(135deg, #dfb86c 0%, #c5a059 100%);
      color: #070a0e;
      box-shadow: 0 4px 14px rgba(197, 160, 89, 0.45);
      transform: translateY(-1px);
    }
    .btn-tactical-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--btn-radius);
      background: rgba(255, 255, 255, 0.05);
      color: #e5e9ec;
      border: 1px solid rgba(229, 233, 236, 0.35);
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-tactical-outline:hover {
      background: rgba(255, 255, 255, 0.15);
      color: #ffffff;
      border-color: var(--accent-amber);
    }

    /* 板块排版公用 */
    .tactical-section {
      padding: 85px 0;
      position: relative;
    }
    .tactical-section-dark {
      background-color: #0e1620;
      color: #e6edf3;
    }
    .tactical-section-light {
      background-color: #ffffff;
      border-top: 1px solid #e1e4e8;
      border-bottom: 1px solid #e1e4e8;
    }
    .tactical-section-gray {
      background-color: #f2f4f7;
    }

    .section-eyebrow {
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--accent-amber);
      margin-bottom: 8px;
      display: inline-block;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .tactical-section-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      line-height: 1.8;
      margin-bottom: 40px;
    }
    .tactical-section-dark .section-desc {
      color: #9aa4af;
    }

    /* Hero */
    .hero-banner-wrapper {
      position: relative;
      background-color: var(--primary-dark);
      background-image: linear-gradient(rgba(16, 24, 32, 0.88), rgba(27, 40, 56, 0.94)), url('/assets/images/ac9f64252bd7a42b.png');
      background-size: cover;
      background-position: center;
      padding: 100px 0 85px 0;
      color: #ffffff;
      border-bottom: 1px solid rgba(197, 160, 89, 0.25);
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #ffffff;
    }
    .hero-lead {
      font-size: 1.125rem;
      line-height: 1.85;
      color: #d1d9e0;
      margin-bottom: 32px;
    }
    .hero-spec-grid {
      background: rgba(13, 20, 29, 0.82);
      border: 1px solid rgba(197, 160, 89, 0.3);
      border-radius: var(--card-radius);
      padding: 24px;
      backdrop-filter: blur(10px);
    }
    .hero-spec-item {
      border-left: 3px solid var(--accent-amber);
      padding-left: 14px;
      margin-bottom: 16px;
    }
    .hero-spec-label {
      font-size: 0.8rem;
      color: #8b949e;
      text-transform: uppercase;
    }
    .hero-spec-value {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--accent-gold);
    }

    /* 通用战术卡片 */
    .tactical-card {
      background: var(--bg-card);
      border: 1px solid #dfe3e8;
      border-radius: var(--card-radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      height: 100%;
      position: relative;
    }
    .tactical-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-amber);
      transform: translateY(-3px);
    }
    .tactical-card-dark {
      background: #141f2c;
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #e6edf3;
    }
    .tactical-card-dark:hover {
      border-color: var(--accent-amber);
      box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45);
    }
    .tactical-icon-box {
      width: 48px;
      height: 48px;
      background: rgba(197, 160, 89, 0.12);
      color: var(--accent-amber);
      border-radius: var(--btn-radius);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 20px;
    }
    .tactical-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .tactical-card-dark .tactical-card-title {
      color: #ffffff;
    }
    .tactical-card-p {
      font-size: 0.9375rem;
      line-height: 1.75;
      color: var(--text-muted);
      margin: 0;
    }
    .tactical-card-dark .tactical-card-p {
      color: #9aa4af;
    }

    /* 游戏大卡片 */
    .game-roster-card {
      background: #ffffff;
      border: 1px solid #d8dee4;
      border-radius: var(--card-radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .game-roster-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-amber);
    }
    .game-roster-media {
      position: relative;
      height: 200px;
      overflow: hidden;
      background: #101820;
    }
    .game-roster-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .game-roster-card:hover .game-roster-media img {
      transform: scale(1.05);
    }
    .game-roster-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(16, 24, 32, 0.85);
      color: var(--accent-gold);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 3px;
      border: 1px solid var(--accent-amber);
    }
    .game-roster-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .game-rating-bar {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 12px;
      font-size: 0.85rem;
      color: var(--accent-amber);
    }

    /* 流程步进器 */
    .step-box {
      position: relative;
      background: #ffffff;
      border: 1px solid #e1e4e8;
      border-radius: var(--card-radius);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
    }
    .step-box:hover {
      border-color: var(--accent-amber);
      transform: translateY(-3px);
    }
    .step-num-badge {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--accent-amber);
      font-family: monospace;
      margin-bottom: 10px;
      display: block;
    }

    /* 运行指标条 */
    .metric-counter-block {
      text-align: center;
      padding: 30px 15px;
      background: #141f2c;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--card-radius);
      height: 100%;
    }
    .metric-value {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--accent-gold);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: monospace;
    }
    .metric-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .metric-note {
      font-size: 0.8rem;
      color: #8b949e;
      margin: 0;
    }

    /* 证言卡片 */
    .testimonial-card {
      background: #ffffff;
      border: 1px solid #d8dee4;
      border-radius: var(--card-radius);
      padding: 28px;
      height: 100%;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: auto;
      padding-top: 18px;
      border-top: 1px solid #f0f2f5;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-slate);
      color: var(--accent-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    /* FAQ 手风琴定制 */
    .accordion-tactical .accordion-item {
      border: 1px solid #d8dee4;
      border-radius: var(--card-radius) !important;
      margin-bottom: 14px;
      overflow: hidden;
      background: #ffffff;
    }
    .accordion-tactical .accordion-button {
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--primary-dark);
      background-color: #ffffff;
      padding: 18px 24px;
      box-shadow: none;
    }
    .accordion-tactical .accordion-button:not(.collapsed) {
      color: var(--accent-amber);
      background-color: #f7f9fb;
      border-bottom: 1px solid #e1e4e8;
    }
    .accordion-tactical .accordion-body {
      padding: 20px 24px;
      color: var(--text-muted);
      line-height: 1.8;
      background-color: #ffffff;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0b1118;
      color: #8b949e;
      border-top: 3px solid var(--accent-amber);
      padding: 70px 0 25px 0;
      font-size: 0.875rem;
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-list li {
      margin-bottom: 10px;
    }
    .footer-nav-list a {
      color: #8b949e;
    }
    .footer-nav-list a:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 25px;
      margin-top: 50px;
      text-align: center;
      font-size: 0.8125rem;
    }

    @media (max-width: 991.98px) {
      .hero-h1 {
        font-size: 2.15rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .tactical-section {
        padding: 60px 0;
      }
    }
    @media (max-width: 575.98px) {
      .hero-h1 {
        font-size: 1.75rem;
      }
      .tactical-section {
        padding: 45px 0;
      }
      .hero-banner-wrapper {
        padding: 60px 0 45px 0;
      }
      .tactical-card {
        padding: 20px;
      }
    }