/* roulang page: index */
:root {
      --primary: #6C5CE7;
      --primary-dark: #4834D4;
      --accent: #00D2D3;
      --accent-alt: #10AC84;
      --dark-deep: #130F40;
      --dark-card: #1E1B4B;
      --bg-light: #F8F9FD;
      --text-main: #2D3436;
      --text-muted: #636E72;
      --text-white: #FFFFFF;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-pill: 50px;
      --shadow-soft: 0 10px 30px rgba(108, 92, 231, 0.08);
      --shadow-hover: 0 16px 36px rgba(108, 92, 231, 0.2);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; }
    
    /* 顶部双行导航 */
    .top-utility-bar {
      background: #0d0a2b;
      color: #b2bec3;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      margin-right: 6px;
      box-shadow: 0 0 8px var(--accent);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { opacity: 0.4; transform: scale(0.9); }
      50% { opacity: 1; transform: scale(1.2); }
      100% { opacity: 0.4; transform: scale(0.9); }
    }
    .main-nav-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    .main-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 21px;
      color: var(--dark-deep);
    }
    .brand-icon {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      box-shadow: 0 6px 14px rgba(108, 92, 231, 0.35);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
      margin: 0;
    }
    .nav-links li a {
      font-size: 15px;
      font-weight: 600;
      color: #4b5563;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(108, 92, 231, 0.06);
    }
    .cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff !important;
      padding: 11px 24px;
      border-radius: var(--radius-pill);
      font-weight: 700;
      font-size: 15px;
      box-shadow: 0 6px 20px rgba(108, 92, 231, 0.35);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      cursor: pointer;
    }
    .cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(108, 92, 231, 0.45);
    }
    .cta-btn-accent {
      background: linear-gradient(135deg, var(--accent), var(--accent-alt));
      color: #0b2228 !important;
      box-shadow: 0 6px 20px rgba(0, 210, 211, 0.3);
    }
    .cta-btn-accent:hover {
      box-shadow: 0 10px 26px rgba(0, 210, 211, 0.45);
    }

    /* 通用组件与徽章 */
    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(0, 210, 211, 0.12);
      color: #008788;
      border: 1px solid rgba(0, 210, 211, 0.3);
      padding: 5px 14px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 700;
    }
    .pill-badge.light {
      background: rgba(255, 255, 255, 0.15);
      color: var(--accent);
      border-color: rgba(255, 255, 255, 0.25);
    }
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-dark {
      background-color: var(--dark-deep);
      color: var(--text-white);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header h2 {
      font-size: 32px;
      font-weight: 800;
      margin-top: 10px;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-header p {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }
    .section-dark .section-header p {
      color: #a4b0be;
    }
    .feature-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-soft);
      border: 1px solid rgba(108, 92, 231, 0.07);
      transition: all 0.3s ease;
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(108, 92, 231, 0.2);
    }

    /* 旗舰店 Hero */
    .hero-store-stage {
      position: relative;
      background: url('/assets/images/2220c58546ee9bc9.jpg') center/cover no-repeat;
      padding: 110px 0 140px;
      color: #fff;
    }
    .hero-store-stage::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(19, 15, 64, 0.94), rgba(72, 52, 212, 0.85));
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-lead-desc {
      font-size: 17px;
      color: #dfe6e9;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-series-bar {
      margin-top: -65px;
      position: relative;
      z-index: 10;
    }
    .series-nav-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 16px 40px rgba(0,0,0,0.12);
      border: 1px solid rgba(108, 92, 231, 0.1);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .series-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 16px;
      border-radius: var(--radius-md);
      transition: background 0.25s;
    }
    .series-item:hover {
      background: var(--bg-light);
    }
    .series-item-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #fff;
    }

    /* 资讯热榜与轮播区 */
    .banner-news-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: #fff;
      box-shadow: var(--shadow-soft);
      height: 100%;
    }
    .banner-img-wrap {
      position: relative;
      height: 220px;
      overflow: hidden;
    }
    .banner-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .banner-news-card:hover .banner-img-wrap img {
      transform: scale(1.06);
    }
    .banner-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(19, 15, 64, 0.85);
      color: #fff;
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 6px;
      backdrop-filter: blur(4px);
    }

    /* 参数表格与数据条 */
    .metric-strip-card {
      background: linear-gradient(135deg, var(--dark-deep), #241459);
      border-radius: var(--radius-lg);
      padding: 40px;
      color: #fff;
      border: 1px solid rgba(255,255,255,0.1);
    }
    .metric-num {
      font-size: 38px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 8px;
    }

    /* FAQ 手风琴样式 */
    .faq-accordion .accordion-item {
      background: #fff;
      border: 1px solid rgba(108, 92, 231, 0.1);
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-accordion .accordion-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark-deep);
      padding: 18px 24px;
      border: none;
    }
    .faq-accordion .accordion-title::before {
      color: var(--primary);
      font-weight: bold;
    }
    .faq-accordion .accordion-content {
      padding: 0 24px 22px;
      color: var(--text-muted);
      border: none;
      font-size: 15px;
      line-height: 1.8;
    }

    /* 页脚 */
    .site-footer {
      background: #0a071e;
      color: #a4b0be;
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,0.05);
      font-size: 13px;
      color: #747d8c;
    }

    @media screen and (max-width: 63.9375em) {
      .hero-content h1 { font-size: 32px; }
      .series-nav-card { justify-content: flex-start; }
      .nav-links { display: none; }
    }