/* roulang page: index */
/* 核心视觉系统与设计变量 */
    :root {
      --primary-gradient: linear-gradient(135deg, #102A43 0%, #243B53 100%);
      --primary-dark: #0B1521;
      --primary-blue: #102A43;
      --accent-gold-gradient: linear-gradient(135deg, #C5A880 0%, #9E7D52 100%);
      --accent-gold: #C5A880;
      --accent-gold-hover: #b39266;
      --surface-bg: #F8FAFC;
      --card-bg: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: rgba(16, 42, 69, 0.08);
      --card-radius: 20px;
      --card-radius-sm: 14px;
      --box-shadow-subtle: 0 12px 32px -4px rgba(16, 42, 69, 0.06), 0 4px 12px -2px rgba(16, 42, 69, 0.03);
      --box-shadow-hover: 0 20px 40px -6px rgba(16, 42, 69, 0.12), 0 8px 16px -4px rgba(16, 42, 69, 0.06);
    }

    html {
      scroll-behavior: smooth;
    }

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

    /* 顶部通告与全局导航 */
    .top-notice-bar {
      background: #08111B;
      color: #94A3B8;
      font-size: 0.825rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .top-notice-bar span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .custom-navbar {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      padding: 14px 0;
      position: sticky;
      top: 0;
      z-index: 1020;
      transition: all 0.3s ease;
    }
    .navbar-brand-custom {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--text-main);
      font-weight: 700;
      font-size: 1.35rem;
      letter-spacing: -0.2px;
    }
    .brand-icon-box {
      width: 42px;
      height: 42px;
      background: var(--primary-gradient);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #C5A880;
      font-size: 1.15rem;
      box-shadow: 0 4px 10px rgba(16, 42, 69, 0.2);
    }

    /* 按钮与徽章组件体系 */
    .btn-gold {
      background: var(--accent-gold-gradient);
      color: #FFFFFF !important;
      font-weight: 600;
      border: none;
      border-radius: 10px;
      padding: 11px 24px;
      box-shadow: 0 6px 18px rgba(197, 168, 128, 0.35);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(197, 168, 128, 0.45);
      filter: brightness(1.05);
    }
    .btn-navy-outline {
      border: 1.5px solid #243B53;
      color: #102A43;
      background: transparent;
      font-weight: 600;
      border-radius: 10px;
      padding: 10px 22px;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-navy-outline:hover {
      background: #102A43;
      color: #FFFFFF;
      transform: translateY(-2px);
    }
    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.775rem;
      font-weight: 600;
      letter-spacing: 0.3px;
      background: rgba(197, 168, 128, 0.12);
      color: #9E7D52;
      border: 1px solid rgba(197, 168, 128, 0.28);
    }
    .pill-badge-dark {
      background: rgba(255, 255, 255, 0.08);
      color: #C5A880;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    /* 板块通用间距与头部 */
    .app-section {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-top: 10px;
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 10px auto 0;
      line-height: 1.7;
    }

    /* 卡片大圆角与阴影 */
    .feature-card {
      background: var(--card-bg);
      border-radius: var(--card-radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--box-shadow-subtle);
      padding: 32px 28px;
      height: 100%;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--box-shadow-hover);
      border-color: rgba(197, 168, 128, 0.4);
    }

    /* Hero 首屏与倒计时展台 */
    .hero-section {
      background: var(--primary-gradient);
      color: #FFFFFF;
      padding: 70px 0 85px;
      position: relative;
      overflow: hidden;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: url('/assets/images/c4bbffe15f935d3c.webp') center/cover no-repeat;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      background: var(--accent-gold-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .live-broadcast-board {
      background: rgba(11, 21, 33, 0.85);
      border: 1px solid rgba(197, 168, 128, 0.3);
      backdrop-filter: blur(16px);
      border-radius: 22px;
      padding: 30px;
      box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
    }
    .countdown-timer-wrap {
      display: flex;
      gap: 12px;
      justify-content: center;
      margin: 20px 0;
    }
    .countdown-unit {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 12px;
      padding: 10px 14px;
      min-width: 62px;
      text-align: center;
    }
    .countdown-unit .number {
      font-size: 1.55rem;
      font-weight: 700;
      color: #C5A880;
      line-height: 1.1;
    }
    .countdown-unit .label {
      font-size: 0.72rem;
      color: #94A3B8;
      text-transform: uppercase;
      margin-top: 4px;
    }

    /* 资质认证条 */
    .trust-strip {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0;
    }
    .trust-item {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      font-weight: 600;
      color: #334155;
      font-size: 0.925rem;
    }
    .trust-item i {
      color: #C5A880;
      font-size: 1.25rem;
    }

    /* 深色沉浸式指挥调度区 */
    .dark-ops-section {
      background-color: var(--primary-dark);
      background-image: radial-gradient(circle at top right, rgba(36, 59, 83, 0.4) 0%, transparent 60%);
      color: #FFFFFF;
    }
    .dark-ops-section .section-title {
      color: #FFFFFF;
    }
    .dark-ops-section .section-subtitle {
      color: #94A3B8;
    }
    .ops-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--card-radius);
      padding: 30px;
      height: 100%;
      transition: all 0.3s ease;
    }
    .ops-card:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(197, 168, 128, 0.4);
      transform: translateY(-4px);
    }

    /* 对比表格大卡 */
    .comparison-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: #FFFFFF;
      border-radius: var(--card-radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--box-shadow-subtle);
    }
    .comparison-table th {
      background: #F1F5F9;
      padding: 18px 22px;
      font-weight: 700;
      color: var(--text-main);
      font-size: 1rem;
      border-bottom: 2px solid #E2E8F0;
    }
    .comparison-table td {
      padding: 16px 22px;
      border-bottom: 1px solid #F1F5F9;
      font-size: 0.95rem;
      vertical-align: middle;
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }
    .comparison-table td.modern-col {
      background: rgba(197, 168, 128, 0.05);
      font-weight: 600;
      color: #102A43;
    }

    /* 指标统计大条 */
    .metric-band {
      background: var(--primary-gradient);
      color: #FFFFFF;
      padding: 55px 0;
      border-radius: 24px;
      margin: 40px 0;
    }
    .metric-value {
      font-size: 2.75rem;
      font-weight: 800;
      color: #C5A880;
      line-height: 1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 0.95rem;
      color: #E2E8F0;
      font-weight: 500;
    }

    /* 常见异议 Accordion 定制 */
    .custom-accordion .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: 14px !important;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    }
    .custom-accordion .accordion-button {
      font-weight: 700;
      color: var(--text-main);
      font-size: 1.05rem;
      padding: 20px 24px;
      background: #FFFFFF;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      color: #102A43;
      background: #F8FAFC;
      box-shadow: none;
    }
    .custom-accordion .accordion-button:focus {
      box-shadow: none;
      border-color: rgba(197, 168, 128, 0.5);
    }
    .custom-accordion .accordion-body {
      padding: 20px 24px;
      color: #475569;
      font-size: 0.95rem;
      line-height: 1.7;
      background: #FFFFFF;
    }

    /* 页脚与移动端固定条 */
    .site-footer {
      background: #0B1521;
      color: #94A3B8;
      padding: 70px 0 35px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.925rem;
    }
    .footer-title {
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: #C5A880;
    }

    .mobile-sticky-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: #FFFFFF;
      padding: 10px 16px;
      box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.12);
      z-index: 1030;
      border-top: 1px solid #E2E8F0;
    }

    @media (max-width: 991.98px) {
      .hero-h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .metric-value {
        font-size: 2.2rem;
      }
      .app-section {
        padding: 55px 0;
      }
    }

    @media (max-width: 767.98px) {
      .mobile-sticky-bar {
        display: flex;
        gap: 10px;
      }
      body {
        padding-bottom: 65px;
      }
      .feature-card {
        padding: 24px 20px;
        border-radius: var(--card-radius-sm);
      }
      .comparison-table th, .comparison-table td {
        padding: 12px 14px;
        font-size: 0.85rem;
      }
    }