/* roulang page: index */
:root {
      --primary: #7928CA;
      --primary-light: #9d4edd;
      --accent: #00F5D4;
      --accent-dark: #00bfa5;
      --bg-light: #F8F9FD;
      --bg-card: #FFFFFF;
      --bg-dark: #0D1117;
      --bg-dark-card: #161B22;
      --text-main: #111827;
      --text-muted: #4B5563;
      --text-light: #9CA3AF;
      --border-light: rgba(0, 0, 0, 0.08);
      --border-dark: rgba(255, 255, 255, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 14px rgba(17, 24, 39, 0.05);
      --shadow-hover: 0 14px 30px -4px rgba(121, 40, 202, 0.18);
    }
    * { box-sizing: border-box; }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--accent-dark); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    h1, h2, h3, h4, h5, h6 {
      font-family: inherit;
      color: var(--text-main);
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 0.75rem;
    }
    
    /* 顶部下载转化双行导航 */
    .top-notice-bar {
      background: #090d13;
      color: var(--text-light);
      font-size: 0.82rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .top-notice-bar .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
      background: rgba(0,245,212,0.1);
      padding: 2px 8px;
      border-radius: 9999px;
      font-size: 0.75rem;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 15px rgba(0,0,0,0.04);
      border-bottom: 1px solid var(--border-light);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      gap: 24px;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 600;
      padding: 6px 4px;
    }
    .nav-links li a:hover, .nav-links li a.active {
      color: var(--primary);
    }
    .header-cta-btn {
      background: linear-gradient(135deg, var(--primary), #5b1aa8);
      color: #fff !important;
      padding: 9px 20px;
      border-radius: 9999px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 0 4px 14px rgba(121, 40, 202, 0.25);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .header-cta-btn:hover {
      box-shadow: 0 6px 20px rgba(121, 40, 202, 0.4);
      transform: translateY(-1px);
    }

    /* 板块统一与容器 */
    .app-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    section.page-section {
      padding: 85px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      background: rgba(121, 40, 202, 0.08);
      padding: 4px 12px;
      border-radius: 9999px;
      margin-bottom: 12px;
      letter-spacing: 0.05em;
    }
    .section-header h2 {
      font-size: 2.15rem;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-header p {
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.8;
      margin: 0;
    }

    /* Hero：拼团转化定制结构 */
    .hero-section {
      padding: 70px 0 90px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F3F5FC 100%);
      border-bottom: 1px solid var(--border-light);
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0; right: 0; bottom: 0; left: 0;
      background-image: url('/assets/images/8ed508119a6dfdb0.png');
      background-size: cover;
      background-position: center;
      opacity: 0.06;
      pointer-events: none;
    }
    .hero-badge-live {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: #ffffff;
      border: 1px solid rgba(121, 40, 202, 0.2);
      padding: 6px 14px;
      border-radius: 9999px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 22px;
      font-size: 0.88rem;
      font-weight: 600;
    }
    .hero-title {
      font-size: 3rem;
      line-height: 1.22;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
    }
    .hero-title span {
      background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.12rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .hero-group-card {
      background: #ffffff;
      border: 2px solid rgba(121, 40, 202, 0.15);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.06);
      margin-bottom: 24px;
    }
    .group-progress-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .group-meter {
      height: 8px;
      background: #e5e7eb;
      border-radius: 9999px;
      overflow: hidden;
      margin-bottom: 18px;
    }
    .group-meter-fill {
      width: 78%;
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 9999px;
    }
    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .btn-hero-primary {
      background: linear-gradient(135deg, var(--primary), #5a189a);
      color: #ffffff !important;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 15px rgba(121, 40, 202, 0.3);
    }
    .btn-hero-primary:hover {
      box-shadow: 0 8px 25px rgba(121, 40, 202, 0.45);
      transform: translateY(-2px);
    }
    .btn-hero-secondary {
      background: #ffffff;
      border: 1px solid var(--border-light);
      color: var(--text-main);
      font-weight: 700;
      padding: 14px 24px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-hero-secondary:hover {
      background: #f9fafb;
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 板块二：安全主张 */
    .bg-white-pure { background-color: #FFFFFF; }
    .security-claim-box {
      background: #FAF5FF;
      border: 1px solid rgba(121, 40, 202, 0.2);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .security-claim-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
      margin-top: 24px;
    }
    .sec-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .sec-item i {
      color: var(--primary);
      font-size: 1.3rem;
      margin-top: 3px;
    }

    /* 板块三：检查项 (Pre-Flight Checklist) */
    .checklist-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 20px;
    }
    .check-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .check-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(121, 40, 202, 0.3);
    }
    .check-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }
    .check-card-header h3 {
      font-size: 1.15rem;
      margin: 0;
    }
    .badge-check {
      background: rgba(0, 245, 212, 0.15);
      color: #008775;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 9999px;
    }

    /* 板块四：合规徽章 */
    .badges-band {
      background: #111827;
      color: #ffffff;
      padding: 60px 0;
    }
    .badge-item-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding: 16px;
    }
    .badge-icon-box {
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      color: var(--accent);
      margin-bottom: 14px;
      border: 1px solid rgba(255,255,255,0.15);
    }
    .badge-item-wrap h4 { color: #fff; font-size: 1.1rem; margin-bottom: 6px; }
    .badge-item-wrap p { color: #9CA3AF; font-size: 0.88rem; margin: 0; line-height: 1.6; }

    /* 板块五：边界说明 (Scope & Limits) */
    .boundary-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .boundary-panel {
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-light);
    }
    .panel-allow {
      background: #F0FDF4;
      border-color: #BBF7D0;
    }
    .panel-forbid {
      background: #FFF1F2;
      border-color: #FECDD3;
    }
    .panel-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .panel-allow .panel-title { color: #166534; }
    .panel-forbid .panel-title { color: #9F1239; }
    .boundary-list { list-style: none; padding: 0; margin: 0; }
    .boundary-list li {
      padding: 8px 0;
      font-size: 0.95rem;
      display: flex;
      align-items: flex-start;
      gap: 10px;
      line-height: 1.6;
    }

    /* 板块六：核心功能六网格 */
    .features-grid-6 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .feature-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon-wrapper {
      width: 48px;
      height: 48px;
      background: rgba(121, 40, 202, 0.08);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 18px;
    }
    .feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
    .feature-card p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; margin: 0; }

    /* 板块七：角色预设卡片 */
    .persona-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .persona-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }
    .persona-img-box {
      height: 200px;
      position: relative;
      overflow: hidden;
    }
    .persona-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 0;
    }
    .persona-voice-tag {
      position: absolute;
      bottom: 12px;
      left: 12px;
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(4px);
      color: #fff;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 9999px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .persona-content { padding: 24px; }
    .persona-content h3 { font-size: 1.2rem; margin-bottom: 8px; }
    .persona-tags { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
    .persona-tag-pill {
      font-size: 0.75rem;
      background: #F3F4F6;
      color: #4B5563;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .persona-content p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; margin: 0; }

    /* 板块八：深色交互理念区 */
    .dark-interactive-block {
      background-color: var(--bg-dark);
      color: #ffffff;
      padding: 85px 0;
    }
    .dark-interactive-block .section-header h2 { color: #ffffff; }
    .dark-interactive-block .section-header p { color: #9CA3AF; }
    .tech-showcase-row {
      display: flex;
      align-items: center;
      gap: 40px;
      flex-wrap: wrap;
    }
    .tech-text-col { flex: 1 1 450px; }
    .tech-media-col { flex: 1 1 450px; }
    .tech-spec-badge {
      display: inline-block;
      background: rgba(0, 245, 212, 0.1);
      color: var(--accent);
      border: 1px solid rgba(0, 245, 212, 0.3);
      padding: 4px 12px;
      border-radius: 9999px;
      font-size: 0.8rem;
      margin-bottom: 14px;
    }
    .tech-metrics-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 30px;
    }
    .metric-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      padding: 18px;
      border-radius: var(--radius-sm);
    }
    .metric-value {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
    }
    .metric-label { font-size: 0.85rem; color: #9CA3AF; margin-top: 4px; }

    /* 板块九：实测流程演示卡片 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .step-number {
      font-size: 2.5rem;
      font-weight: 900;
      color: rgba(121, 40, 202, 0.12);
      line-height: 1;
      margin-bottom: 10px;
    }
    .step-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
    .step-card p { font-size: 0.9rem; color: var(--text-muted); margin: 0; line-height: 1.6; }

    /* 板块十：资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date { font-size: 0.82rem; color: var(--text-light); margin-bottom: 8px; }
    .news-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
    .news-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
    .news-link-btn {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块十一：信任背书与评测反馈 */
    .endorse-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 20px;
    }
    .endorse-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .user-info-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .user-avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #a855f7, var(--primary));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }
    .user-details h4 { font-size: 1rem; margin: 0; }
    .user-details span { font-size: 0.8rem; color: var(--text-light); }
    .endorse-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; margin: 0; }

    /* 板块十二：FAQ 手风琴 */
    .faq-wrapper {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question:hover { background: #fafafa; }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 板块十三：全平台客户端获取与开黑收口 */
    .cta-aggregate-section {
      background: linear-gradient(135deg, #111827 0%, #1e1b4b 100%);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      color: #ffffff;
      text-align: center;
      margin: 40px 0 80px;
      position: relative;
      overflow: hidden;
    }
    .cta-aggregate-section h2 { color: #ffffff; font-size: 2.3rem; margin-bottom: 16px; }
    .cta-aggregate-section p { color: #d1d5db; max-width: 680px; margin: 0 auto 36px; font-size: 1.05rem; line-height: 1.8; }
    .platform-buttons-row {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-download-platform {
      background: #ffffff;
      color: var(--text-main);
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      transition: all 0.25s ease;
    }
    .btn-download-platform:hover {
      background: var(--accent);
      color: #000000;
      transform: translateY(-2px);
    }

    /* 页脚四列架构 */
    .site-footer {
      background: #0B0F17;
      color: #9CA3AF;
      font-size: 0.88rem;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li { margin-bottom: 10px; }
    .footer-links-list li a { color: #9CA3AF; }
    .footer-links-list li a:hover { color: var(--accent); }
    .footer-bottom-bar {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.82rem;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.4rem; }
      .nav-links { display: none; }
    }
    @media (max-width: 768px) {
      .boundary-split { grid-template-columns: 1fr; }
      .hero-title { font-size: 2rem; }
      section.page-section { padding: 60px 0; }
      .cta-aggregate-section { padding: 40px 20px; }
    }