/* roulang page: index */
:root {
      --primary: #0284c7;
      --primary-dark: #0369a1;
      --primary-light: #e0f2fe;
      --accent: #f97316;
      --accent-hover: #ea580c;
      --slate-900: #0f172a;
      --slate-800: #1e293b;
      --slate-700: #334155;
      --slate-600: #475569;
      --slate-200: #e2e8f0;
      --slate-100: #f1f5f9;
      --slate-50: #f8fafc;
      --white: #ffffff;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 12px rgba(15,23,42,0.08);
      --shadow-lg: 0 12px 28px rgba(15,23,42,0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--slate-50);
      color: var(--slate-800);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--slate-200);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--slate-900);
      letter-spacing: -0.5px;
    }

    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), #0284c7);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      font-weight: 900;
      font-size: 1.1rem;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--slate-600);
    }

    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }

    .nav-btn {
      padding: 8px 20px;
      border-radius: var(--radius-md);
      background-color: var(--primary);
      color: var(--white) !important;
      font-weight: 600;
      font-size: 0.92rem;
      box-shadow: 0 2px 6px rgba(2, 132, 199, 0.25);
    }

    .nav-btn:hover {
      background-color: var(--primary-dark);
      transform: translateY(-1px);
    }

    /* 模块通用样式 */
    .section {
      padding: 72px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--white);
      border-top: 1px solid var(--slate-200);
      border-bottom: 1px solid var(--slate-200);
    }

    .section-header {
      margin-bottom: 40px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background: var(--primary-light);
      color: var(--primary-dark);
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--slate-900);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--slate-600);
      max-width: 820px;
      line-height: 1.7;
    }

    /* 板块1：Hero（矮横幅） */
    .hero-banner {
      background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
      padding: 56px 0;
      border-bottom: 1px solid #bae6fd;
    }

    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.35fr 1fr;
      align-items: center;
      gap: 36px;
    }

    .hero-content h1 {
      font-size: 2.3rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--slate-900);
      margin-bottom: 16px;
    }

    .hero-desc {
      font-size: 1rem;
      color: var(--slate-700);
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .btn-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: var(--radius-md);
      background-color: var(--primary);
      color: var(--white);
      font-weight: 600;
      font-size: 1rem;
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
    }

    .btn-main:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      border-radius: var(--radius-md);
      border: 1.5px solid var(--slate-600);
      color: var(--slate-700);
      font-weight: 600;
      font-size: 1rem;
      background: transparent;
    }

    .btn-outline:hover {
      background: var(--white);
      border-color: var(--primary);
      color: var(--primary);
    }

    .hero-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      height: 250px;
    }

    .hero-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 板块2：客户案例 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--slate-200);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-user {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .case-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--slate-100);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid var(--slate-200);
    }

    .case-meta h4 {
      font-size: 1rem;
      color: var(--slate-900);
    }

    .case-meta span {
      font-size: 0.8rem;
      color: var(--slate-600);
    }

    .case-text {
      font-size: 0.92rem;
      color: var(--slate-700);
      line-height: 1.6;
    }

    /* 板块3：结果数据 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: var(--slate-900);
      color: var(--white);
      border-radius: var(--radius-lg);
      padding: 40px;
    }

    .metric-item {
      border-right: 1px solid rgba(255, 255, 255, 0.1);
      padding-right: 16px;
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 6px;
    }

    .metric-title {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .metric-detail {
      font-size: 0.82rem;
      color: #94a3b8;
      line-height: 1.5;
    }

    /* 板块4：前后对比 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .compare-col {
      padding: 32px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--slate-200);
    }

    .col-trad {
      background: var(--slate-100);
    }

    .col-app {
      background: #eff6ff;
      border-color: #bfdbfe;
    }

    .compare-heading {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .col-trad .compare-heading { color: var(--slate-700); }
    .col-app .compare-heading { color: var(--primary-dark); }

    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .compare-list li {
      font-size: 0.94rem;
      line-height: 1.6;
      position: relative;
      padding-left: 24px;
    }

    .col-trad li::before {
      content: "✕";
      position: absolute;
      left: 0;
      color: #ef4444;
      font-weight: bold;
    }

    .col-app li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: #10b981;
      font-weight: bold;
    }

    /* 板块5：方法说明 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-box {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--slate-200);
      position: relative;
    }

    .step-index {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary);
      color: var(--white);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 14px;
      font-size: 0.9rem;
    }

    .step-box h3 {
      font-size: 1.05rem;
      margin-bottom: 8px;
      color: var(--slate-900);
    }

    .step-box p {
      font-size: 0.86rem;
      color: var(--slate-600);
      line-height: 1.6;
    }

    /* 板块6：深度战术与核心能力矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .matrix-item {
      background: var(--slate-50);
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--slate-200);
      transition: var(--transition);
    }

    .matrix-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }

    .matrix-item h3 {
      font-size: 1.15rem;
      color: var(--slate-900);
      margin-bottom: 10px;
    }

    .matrix-item p {
      font-size: 0.9rem;
      color: var(--slate-600);
      line-height: 1.6;
    }

    /* 板块7：赛事热门排行与焦点列表 */
    .table-container {
      background: var(--white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--slate-200);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .compact-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compact-table th {
      background: var(--slate-100);
      padding: 14px 20px;
      font-size: 0.88rem;
      color: var(--slate-700);
      font-weight: 600;
      border-bottom: 1px solid var(--slate-200);
    }

    .compact-table td {
      padding: 16px 20px;
      font-size: 0.92rem;
      color: var(--slate-800);
      border-bottom: 1px solid var(--slate-200);
    }

    .compact-table tr:last-child td {
      border-bottom: none;
    }

    .badge-status {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 600;
    }

    .badge-live {
      background: #fee2e2;
      color: #dc2626;
    }

    .badge-done {
      background: #e2e8f0;
      color: var(--slate-600);
    }

    /* 板块8：资讯聚合 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--slate-200);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .news-img {
      height: 180px;
      overflow: hidden;
    }

    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .news-card:hover .news-img img {
      transform: scale(1.05);
    }

    .news-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
      justify-content: space-between;
    }

    .news-tag-date {
      display: flex;
      justify-content: space-between;
      font-size: 0.78rem;
      color: var(--slate-600);
      margin-bottom: 10px;
    }

    .news-body h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--slate-900);
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .news-body p {
      font-size: 0.88rem;
      color: var(--slate-600);
      line-height: 1.6;
    }

    /* 板块9：媒体精选专栏 */
    .media-scroll {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .media-card {
      border: 1px solid var(--slate-200);
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 18px;
    }

    .media-card-header {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }

    .media-card h4 {
      font-size: 1rem;
      margin-bottom: 8px;
      color: var(--slate-900);
    }

    .media-card p {
      font-size: 0.85rem;
      color: var(--slate-600);
      line-height: 1.55;
    }

    /* 板块10：多端同步与平台技术保障 */
    .sync-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--slate-200);
    }

    .sync-info h3 {
      font-size: 1.5rem;
      margin-bottom: 14px;
      color: var(--slate-900);
    }

    .sync-info p {
      font-size: 0.95rem;
      color: var(--slate-600);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .sync-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .sync-points li {
      font-size: 0.92rem;
      color: var(--slate-700);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .sync-points li::before {
      content: "●";
      color: var(--primary);
      font-size: 0.8rem;
    }

    .sync-img {
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 280px;
      box-shadow: var(--shadow-md);
    }

    .sync-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 板块11：异议拆解 */
    .doubt-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .doubt-card {
      background: var(--slate-50);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--slate-200);
    }

    .doubt-q {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--slate-900);
      margin-bottom: 8px;
    }

    .doubt-a {
      font-size: 0.9rem;
      color: var(--slate-600);
      line-height: 1.65;
    }

    /* 板块12：咨询入口 / 订阅与收口 */
    .consult-card {
      background: linear-gradient(135deg, var(--slate-900) 0%, #1e293b 100%);
      color: var(--white);
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
    }

    .consult-card h2 {
      font-size: 2rem;
      margin-bottom: 12px;
      font-weight: 800;
    }

    .consult-card p {
      font-size: 1rem;
      color: #94a3b8;
      max-width: 650px;
      margin: 0 auto 30px auto;
      line-height: 1.7;
    }

    .consult-form {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto;
    }

    .consult-input {
      flex: 1;
      padding: 12px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--slate-700);
      background: #334155;
      color: var(--white);
      outline: none;
      font-size: 0.95rem;
    }

    .consult-input:focus {
      border-color: var(--primary);
    }

    .consult-btn {
      padding: 12px 28px;
      border-radius: var(--radius-md);
      background: var(--accent);
      color: var(--white);
      font-weight: 600;
      border: none;
      cursor: pointer;
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .consult-btn:hover {
      background: var(--accent-hover);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0b1120;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
      font-size: 0.88rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h3 {
      color: var(--white);
      font-size: 1.3rem;
      margin-bottom: 14px;
      font-weight: 800;
    }

    .footer-brand p {
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .footer-col h4 {
      color: var(--white);
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a:hover {
      color: var(--white);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

    /* 移动端断点适配 */
    @media (max-width: 1024px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
      }
      .hero-media {
        height: 220px;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-item:nth-child(2) {
        border-right: none;
      }
      .matrix-grid, .steps-row, .news-grid, .media-scroll {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .site-nav {
        display: none;
      }
      .section {
        padding: 48px 0;
      }
      .section-title {
        font-size: 1.5rem;
      }
      .case-grid, .compare-container, .sync-wrapper, .doubt-grid {
        grid-template-columns: 1fr;
      }
      .steps-row, .matrix-grid, .news-grid, .media-scroll {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 16px;
      }
      .metric-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
      }
      .consult-form {
        flex-direction: column;
      }
      .consult-card {
        padding: 30px 20px;
      }
    }