/* roulang page: index */
:root {
      --primary: #4F46E5;
      --primary-hover: #4338CA;
      --accent: #10B981;
      --accent-hover: #059669;
      --dark: #0F172A;
      --dark-card: #1E293B;
      --light-bg: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #FFFFFF;
      --border-color: #E2E8F0;
      --border-radius: 12px;
      --box-shadow-sm: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --box-shadow-hover: 0 12px 28px -4px rgba(79, 70, 229, 0.15);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.75;
      overflow-x: hidden;
    }

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

    /* 顶栏通告条 */
    .top-bar {
      background-color: var(--dark);
      color: #94A3B8;
      font-size: 0.85rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 主导航栏 */
    .site-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo:hover {
      color: var(--primary-hover);
    }
    .nav-link {
      font-weight: 600;
      color: var(--text-main);
      padding: 0.5rem 1rem !important;
      border-radius: 6px;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary) !important;
      background-color: rgba(79, 70, 229, 0.06);
    }
    .btn-header-cta {
      background-color: var(--primary);
      color: #fff;
      font-weight: 600;
      padding: 0.45rem 1.25rem;
      border-radius: 8px;
      border: none;
      transition: var(--transition);
    }
    .btn-header-cta:hover {
      background-color: var(--primary-hover);
      color: #fff;
      transform: translateY(-2px);
    }

    /* Hero 区域 */
    .hero-section {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(79, 70, 229, 0.82) 100%), url('/assets/images/aa2ada808b02030d.png') center/cover no-repeat;
      color: #FFFFFF;
      padding: 5rem 0 4rem;
      position: relative;
    }
    .hero-title {
      font-size: clamp(2rem, 4vw, 3.25rem);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 1.25rem;
    }
    .hero-lead {
      font-size: 1.15rem;
      color: #E2E8F0;
      margin-bottom: 2rem;
      max-width: 650px;
    }
    .hero-features {
      list-style: none;
      padding: 0;
      margin-bottom: 2rem;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 12px;
    }
    .hero-features li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 500;
      font-size: 0.95rem;
    }
    .hero-features li i {
      color: var(--accent);
    }
    .hero-trust-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.1);
      padding: 8px 16px;
      border-radius: 30px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 0.85rem;
    }

    /* Hero 下方 Pill 独立导航 */
    .pill-nav-bar {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
      position: relative;
      z-index: 1010;
    }
    .pill-scroll-wrapper {
      display: flex;
      overflow-x: auto;
      white-space: nowrap;
      gap: 8px;
      padding: 0.75rem 0;
      scrollbar-width: none;
    }
    .pill-scroll-wrapper::-webkit-scrollbar {
      display: none;
    }
    .chip-item {
      display: inline-block;
      padding: 6px 16px;
      background-color: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
      cursor: pointer;
    }
    .chip-item:hover, .chip-item.active {
      background-color: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    /* 板块通用标准 */
    .page-section {
      padding: 5rem 0;
    }
    .section-bg-light {
      background-color: var(--light-bg);
    }
    .section-bg-white {
      background-color: #FFFFFF;
    }
    .section-bg-dark {
      background-color: var(--dark);
      color: #FFFFFF;
    }
    .section-heading-wrap {
      margin-bottom: 3.5rem;
    }
    .section-subtitle {
      color: var(--primary);
      font-weight: 700;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 0.5rem;
      display: inline-block;
    }
    .section-heading-wrap.text-white .section-subtitle {
      color: var(--accent);
    }
    .section-title {
      font-size: clamp(1.6rem, 2.8vw, 2.25rem);
      font-weight: 700;
      margin-bottom: 1rem;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
      font-size: 1rem;
      line-height: 1.7;
    }
    .section-bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 卡片与交互组件 */
    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 2rem;
      box-shadow: var(--box-shadow-sm);
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      box-shadow: var(--box-shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(79, 70, 229, 0.3);
    }
    .card-icon-box {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 1.25rem;
    }
    .service-card:hover .card-icon-box {
      background: var(--primary);
      color: #FFFFFF;
    }

    /* 方案横向特色大卡 */
    .genre-card {
      background: #FFFFFF;
      border-radius: var(--border-radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--box-shadow-sm);
      transition: var(--transition);
      margin-bottom: 2rem;
    }
    .genre-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--box-shadow-hover);
    }
    .genre-img-wrap {
      position: relative;
      height: 100%;
      min-height: 240px;
    }
    .genre-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 视听拟态播放组件 */
    .audio-player-mock {
      background: #FFFFFF;
      border-radius: 12px;
      padding: 1.25rem;
      border: 1px solid var(--border-color);
      margin-top: 1rem;
    }
    .audio-progress-bar {
      height: 6px;
      background: #E2E8F0;
      border-radius: 3px;
      overflow: hidden;
      margin: 8px 0;
    }
    .audio-progress-fill {
      width: 65%;
      height: 100%;
      background: var(--primary);
    }

    /* 深色案例卡 */
    .case-card-dark {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--border-radius);
      padding: 2rem;
      height: 100%;
    }
    .diff-block {
      border-left: 3px solid;
      padding-left: 12px;
      margin-bottom: 1rem;
    }
    .diff-bad {
      border-color: #EF4444;
      background: rgba(239, 68, 68, 0.05);
      padding: 8px 12px;
      border-radius: 0 6px 6px 0;
    }
    .diff-good {
      border-color: var(--accent);
      background: rgba(16, 185, 129, 0.05);
      padding: 8px 12px;
      border-radius: 0 6px 6px 0;
    }

    /* 流程连线步骤 */
    .process-step-item {
      position: relative;
      text-align: center;
      padding: 1.5rem 1rem;
    }
    .step-badge {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFFFFF;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.2rem;
      margin-bottom: 1rem;
      box-shadow: 0 0 0 6px rgba(79, 70, 229, 0.15);
    }

    /* 数据指标条 */
    .counter-block {
      text-align: center;
      padding: 1.5rem;
    }
    .counter-val {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 0.35rem;
    }
    .counter-label {
      font-size: 0.95rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 对比表格重构 */
    .compare-table {
      background: #FFFFFF;
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }
    .compare-header {
      background: #F1F5F9;
      font-weight: 700;
      padding: 1.25rem;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-highlight {
      background: rgba(79, 70, 229, 0.04);
      border-left: 2px solid var(--primary);
    }

    /* 手风琴 FAQ */
    .accordion-button:not(.collapsed) {
      background-color: rgba(79, 70, 229, 0.05);
      color: var(--primary);
      font-weight: 600;
    }
    .accordion-button:focus {
      box-shadow: none;
      border-color: rgba(79, 70, 229, 0.2);
    }
    .accordion-item {
      border-radius: 8px !important;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    /* 保障徽章条 */
    .guarantee-bar {
      background: linear-gradient(90deg, #1E1B4B 0%, #312E81 100%);
      color: #FFFFFF;
      padding: 2rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .guarantee-item i {
      font-size: 1.75rem;
      color: var(--accent);
    }

    /* 底部收口表单 */
    .cta-card {
      background: #FFFFFF;
      border-radius: 16px;
      padding: 3rem;
      box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.1);
      border: 1px solid var(--border-color);
    }
    .btn-submit-cta {
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      padding: 0.85rem 2rem;
      border-radius: 8px;
      border: none;
      transition: var(--transition);
      box-shadow: 0 4px 15px rgba(79, 70, 229, 0.35);
    }
    .btn-submit-cta:hover {
      background: var(--primary-hover);
      color: #fff;
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
      transform: translateY(-2px);
    }

    /* 底部固定转化浮动条 */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(10px);
      color: #FFFFFF;
      padding: 12px 0;
      z-index: 1030;
      box-shadow: 0 -4px 15px rgba(0,0,0,0.15);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0B1120;
      color: #94A3B8;
      padding: 4.5rem 0 2rem;
      font-size: 0.9rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .footer-title {
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 1.25rem;
      font-size: 1.05rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      font-size: 0.85rem;
    }

    /* 响应式适配 */
    @media (max-width: 991.98px) {
      .hero-section {
        padding: 3.5rem 0 3rem;
      }
      .page-section {
        padding: 3.5rem 0;
      }
      .cta-card {
        padding: 2rem 1.5rem;
      }
    }