/* roulang page: index */
:root {
      --primary: #00B552;
      --primary-hover: #009643;
      --primary-glow: rgba(0, 181, 82, 0.28);
      --pitch-dark: #0E141B;
      --pitch-surface: #17202A;
      --pitch-border: rgba(255, 255, 255, 0.08);
      --accent: #FF5E1E;
      --canvas: #F4F7F6;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --text-light: #718096;
      --card-white: #FFFFFF;
      --border-light: rgba(0, 0, 0, 0.06);
      --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.07);
      --shadow-glow: 0 8px 24px var(--primary-glow);
      --radius: 12px;
      --transition: all 0.26s cubic-bezier(0.16, 1, 0.3, 1);
    }

    *, *::before, *::after {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      background-color: var(--canvas);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

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

    /* 容器与网格增强 */
    .app-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 按钮通用体系 */
    .btn-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 28px;
      font-size: 15px;
      font-weight: 700;
      border-radius: 8px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      line-height: 1;
    }
    .btn-action.btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: var(--shadow-glow);
    }
    .btn-action.btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(0, 181, 82, 0.36);
      color: #FFFFFF;
    }
    .btn-action.btn-outline {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.35);
      color: #FFFFFF;
    }
    .btn-action.btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 顶部双行导航系统 */
    .site-header {
      background: var(--pitch-dark);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--pitch-border);
    }
    .top-meta-bar {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      padding: 10px 0;
      font-size: 13px;
    }
    .brand-logo-text {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.5px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo-text span {
      background: var(--primary);
      color: #0E141B;
      font-size: 11px;
      padding: 2px 7px;
      border-radius: 4px;
      font-weight: 900;
    }
    .ticker-bar {
      color: #94A3B8;
      display: flex;
      align-items: center;
      gap: 10px;
      overflow: hidden;
      white-space: nowrap;
    }
    .ticker-tag {
      background: var(--accent);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .channel-nav-bar {
      display: flex;
      align-items: center;
      overflow-x: auto;
      white-space: nowrap;
      padding: 0;
      scrollbar-width: none;
    }
    .channel-nav-bar::-webkit-scrollbar {
      display: none;
    }
    .channel-link {
      display: inline-block;
      padding: 14px 18px;
      color: #CBD5E1;
      font-size: 14px;
      font-weight: 600;
      position: relative;
    }
    .channel-link.active,
    .channel-link:hover {
      color: #FFFFFF;
    }
    .channel-link.active::after,
    .channel-link:hover::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 18px;
      right: 18px;
      height: 3px;
      background: var(--primary);
      border-radius: 3px 3px 0 0;
    }

    /* 板块通用外壳 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap.bg-white {
      background-color: #FFFFFF;
    }
    .section-wrap.bg-canvas {
      background-color: var(--canvas);
    }
    .section-wrap.bg-dark {
      background-color: var(--pitch-dark);
      color: #FFFFFF;
    }
    .section-head {
      margin-bottom: 46px;
    }
    .section-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(0, 181, 82, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .section-title {
      font-size: 30px;
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.3;
      margin: 0 0 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0;
      line-height: 1.7;
    }
    .bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 板块 1: 白皮书获客 Hero */
    .hero-panel {
      background: linear-gradient(135deg, #0A1118 0%, #15222E 100%);
      color: #FFFFFF;
      padding: 70px 0 90px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      position: relative;
      overflow: hidden;
    }
    .hero-h1 {
      font-size: 38px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-p {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-book-wrap {
      background: var(--pitch-surface);
      border: 1px solid var(--pitch-border);
      border-radius: 16px;
      padding: 28px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }
    .hero-form-box {
      background: #FFFFFF;
      border-radius: 12px;
      padding: 24px;
      color: var(--text-main);
      box-shadow: var(--shadow-md);
    }
    .hero-input {
      width: 100%;
      height: 46px;
      border: 1px solid #E2E8F0;
      border-radius: 8px;
      padding: 0 14px;
      font-size: 14px;
      margin-bottom: 12px;
      outline: none;
      transition: var(--transition);
    }
    .hero-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 181, 82, 0.15);
    }

    /* 板块 2: 痛点沉浸对比区 */
    .pain-card {
      border-radius: var(--radius);
      padding: 32px;
      height: 100%;
      box-shadow: var(--shadow-sm);
    }
    .pain-card.negative {
      background: #FFF5F5;
      border: 1px solid #FED7D7;
    }
    .pain-card.positive {
      background: #F0FFF4;
      border: 1px solid #C6F6D5;
    }
    .pain-title {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .pain-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .pain-list li {
      position: relative;
      padding-left: 24px;
      margin-bottom: 14px;
      font-size: 14px;
      line-height: 1.6;
    }
    .pain-card.negative li::before {
      content: "✕";
      position: absolute;
      left: 0;
      top: 0;
      color: #E53E3E;
      font-weight: bold;
    }
    .pain-card.positive li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary);
      font-weight: bold;
    }

    /* 板块 3: 解决方案矩阵 (6 卡片网格) */
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      margin-bottom: 24px;
      height: calc(100% - 24px);
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 181, 82, 0.3);
    }
    .matrix-icon-badge {
      width: 44px;
      height: 44px;
      background: rgba(0, 181, 82, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 16px;
    }
    .matrix-card h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .matrix-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 板块 4: 方法步骤指南 */
    .step-track {
      display: flex;
      flex-wrap: wrap;
      margin: 0 -12px;
    }
    .step-node {
      padding: 0 12px;
      margin-bottom: 20px;
    }
    .step-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 26px;
      height: 100%;
      position: relative;
    }
    .step-num {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-box h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-box p {
      font-size: 13.5px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 板块 5: 热门专区演示 */
    .zone-card {
      background: #FFFFFF;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      transition: var(--transition);
    }
    .zone-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .zone-media {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .zone-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .zone-card:hover .zone-media img {
      transform: scale(1.05);
    }
    .zone-content {
      padding: 22px;
    }
    .zone-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
      font-size: 12px;
      color: var(--text-light);
    }
    .live-dot {
      display: inline-block;
      width: 7px;
      height: 7px;
      background: var(--accent);
      border-radius: 50%;
      margin-right: 4px;
    }
    .zone-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .zone-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }

    /* 板块 6: 沉浸式深色理念区 */
    .engine-feature {
      padding: 20px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--pitch-border);
      border-radius: var(--radius);
      margin-bottom: 16px;
    }
    .engine-feature h4 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .engine-feature p {
      color: #94A3B8;
      font-size: 13px;
      margin: 0;
      line-height: 1.6;
    }

    /* 板块 7: 领袖故事图文交替 */
    .leader-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 16px;
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .leader-quote {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.7;
      color: var(--text-main);
      margin-bottom: 20px;
      position: relative;
    }
    .leader-profile {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .leader-avatar {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: #E2E8F0;
      overflow: hidden;
    }
    .leader-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 板块 8: 核心生态数据指标条 */
    .stat-strip {
      background: #111827;
      color: #FFFFFF;
      border-radius: 16px;
      padding: 40px 24px;
      margin: 0;
    }
    .stat-item {
      text-align: center;
      padding: 10px;
    }
    .stat-num {
      font-size: 34px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: Arial, sans-serif;
    }
    .stat-label {
      font-size: 13px;
      color: #94A3B8;
      font-weight: 600;
    }

    /* 板块 9: 真实球迷评价墙 */
    .quote-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 24px;
      height: calc(100% - 24px);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .quote-rating {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 10px;
    }
    .quote-text {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .quote-author {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid #F1F5F9;
      padding-top: 12px;
      font-size: 12px;
      color: var(--text-light);
    }

    /* 板块 10: 资讯速递 */
    .news-spotlight {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      overflow: hidden;
      height: 100%;
      box-shadow: var(--shadow-sm);
    }
    .news-spotlight-img {
      height: 220px;
      overflow: hidden;
    }
    .news-spotlight-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-spotlight-body {
      padding: 24px;
    }
    .news-list-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 16px 20px;
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }
    .news-list-item:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }

    /* 板块 11: 会员权益 / 专区对比 */
    .tier-card {
      background: #FFFFFF;
      border-radius: 14px;
      border: 1px solid var(--border-light);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      position: relative;
    }
    .tier-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }
    .tier-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 12px;
      border-radius: 12px;
    }
    .tier-name {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .tier-desc {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 20px;
    }
    .tier-features {
      list-style: none;
      padding: 0;
      margin: 0 0 24px;
      text-align: left;
      font-size: 13.5px;
    }
    .tier-features li {
      padding: 6px 0;
      border-bottom: 1px solid #F1F5F9;
      color: var(--text-muted);
    }

    /* 板块 12: 保障图标条 */
    .guarantee-bar {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 16px;
      border-top: 1px solid var(--border-light);
      padding-top: 40px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 1 1 200px;
    }
    .guarantee-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #E6F8EE;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
    }

    /* 板块 13: 常见疑问手风琴 */
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-header {
      padding: 18px 22px;
      font-size: 15.5px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-body {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 14: 终极收口行动区 */
    .final-cta {
      background: linear-gradient(135deg, #0A1118 0%, #003719 100%);
      border-radius: 20px;
      padding: 60px 40px;
      color: #FFFFFF;
      text-align: center;
      position: relative;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    }
    .final-cta h2 {
      font-size: 32px;
      font-weight: 900;
      margin-bottom: 14px;
      color: #FFFFFF;
    }
    .final-cta p {
      color: #CBD5E1;
      font-size: 16px;
      max-width: 620px;
      margin: 0 auto 30px;
    }

    /* 页脚系统 */
    .site-footer {
      background: #080C10;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13.5px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      margin-top: 40px;
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 响应式断点修正 */
    @media screen and (max-width: 1024px) {
      .hero-h1 { font-size: 32px; }
      .section-wrap { padding: 60px 0; }
    }
    @media screen and (max-width: 768px) {
      .hero-h1 { font-size: 27px; }
      .section-title { font-size: 24px; }
      .stat-num { font-size: 28px; }
      .final-cta { padding: 40px 20px; }
      .final-cta h2 { font-size: 24px; }
      .channel-link { padding: 12px 14px; font-size: 13px; }
      .leader-box { padding: 22px; }
    }
    @media screen and (max-width: 520px) {
      .top-meta-bar .grid-x { flex-direction: column; gap: 8px; }
      .ticker-bar { display: none; }
    }