/* roulang page: index */
:root {
      --primary: #1A56DB;
      --primary-hover: #1346B8;
      --primary-light: #EBF2FE;
      --accent: #0EA5E9;
      --accent-hover: #0284C7;
      --highlight: #F59E0B;
      --highlight-hover: #D97706;
      --dark-bg: #0F172A;
      --dark-surface: #1E293B;
      --dark-border: #334155;
      --page-bg: #F8FAFC;
      --card-bg: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --max-width: 1280px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--page-bg);
      color: var(--text-body);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    }

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

    input, select, textarea, button {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Top Bar */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.8125rem;
      color: var(--text-muted);
      height: 38px;
      display: flex;
      align-items: center;
    }

    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-bar-links {
      display: flex;
      gap: 20px;
    }

    /* Header Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.25s ease;
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.01em;
    }

    .logo-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #FFF;
      font-weight: 800;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(26, 86, 219, 0.25);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }

    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-body);
      padding: 8px 4px;
      position: relative;
    }

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      right: 0;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 22px;
      font-size: 0.9375rem;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 2px 4px rgba(26, 86, 219, 0.15);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 6px 12px rgba(26, 86, 219, 0.25);
      transform: translateY(-1px);
    }

    .btn-accent {
      background-color: var(--highlight);
      color: #FFFFFF;
    }

    .btn-accent:hover {
      background-color: var(--highlight-hover);
      transform: translateY(-1px);
    }

    .btn-outline {
      border-color: var(--border-color);
      background-color: #FFFFFF;
      color: var(--text-main);
    }

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

    .btn-outline-dark {
      border-color: var(--dark-border);
      background-color: rgba(255, 255, 255, 0.05);
      color: #FFFFFF;
    }

    .btn-outline-dark:hover {
      background-color: rgba(255, 255, 255, 0.12);
      border-color: #FFF;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-main);
    }

    /* Common Section Styles */
    .section {
      padding-top: 84px;
      padding-bottom: 84px;
      position: relative;
    }

    .section-alt {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      margin-bottom: 52px;
      max-width: 760px;
    }

    .section-header.center {
      text-align: center;
      margin-left: auto;
      margin-right: auto;
    }

    .section-badge {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.02em;
    }

    .section-badge-dark {
      background-color: rgba(14, 165, 233, 0.15);
      color: #38BDF8;
    }

    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.28;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 1. Hero: 试用申请版式 + 权益徽章 + 资格说明 */
    .hero-section {
      padding: 70px 0 90px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      top: 0;
      right: 0;
      width: 50%;
      height: 100%;
      background-image: url('/assets/images/a5963b6f7327636c.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.1;
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .hero-tag-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 18px;
    }

    .hero-badge-live {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      background-color: #FEF3C7;
      color: #B45309;
      font-size: 0.8125rem;
      font-weight: 700;
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: #F59E0B;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
      animation: pulse 1.6s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
      100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
    }

    .hero-h1 {
      font-size: 2.75rem;
      line-height: 1.2;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.03em;
      margin-bottom: 20px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-p {
      font-size: 1.125rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-qualifications {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px 20px;
      margin-bottom: 32px;
    }

    .qual-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .qual-icon {
      color: #10B981;
      font-weight: 900;
    }

    /* Hero Trial Card */
    .hero-trial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-xl);
      position: relative;
    }

    .trial-card-head {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }

    .trial-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .trial-card-sub {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .trial-form-group {
      margin-bottom: 16px;
    }

    .trial-label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .trial-input, .trial-select {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: #F8FAFC;
      font-size: 0.875rem;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .trial-input:focus, .trial-select:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
    }

    .trial-btn-submit {
      width: 100%;
      height: 46px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #FFFFFF;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      margin-top: 8px;
      box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
      transition: all 0.2s ease;
    }

    .trial-btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    .trial-note {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-align: center;
      margin-top: 12px;
    }

    /* 2. 资料目录 Section (蓝图指定) */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .catalog-card {
      background-color: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .catalog-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-xl);
      border-color: var(--primary);
    }

    .catalog-icon {
      width: 44px;
      height: 44px;
      border-radius: 8px;
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.25rem;
      margin-bottom: 16px;
    }

    .catalog-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .catalog-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .catalog-meta {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 3. 价值点 Section (蓝图指定) */
    .value-bento {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .value-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .value-card:hover {
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
      border-color: var(--accent);
    }

    .value-num {
      font-size: 2.25rem;
      font-weight: 800;
      color: #E2E8F0;
      line-height: 1;
      margin-bottom: 12px;
      font-family: monospace;
    }

    .value-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .value-desc {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 4. 关键图表与数据看板 (蓝图指定) */
    .chart-dashboard {
      background-color: var(--dark-bg);
      border-radius: var(--radius-lg);
      padding: 40px;
      color: #FFFFFF;
      border: 1px solid var(--dark-border);
      box-shadow: var(--shadow-xl);
    }

    .dashboard-topbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--dark-border);
      padding-bottom: 20px;
      margin-bottom: 30px;
    }

    .live-status-indicator {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.875rem;
      color: #38BDF8;
      background: rgba(14, 165, 233, 0.1);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(14, 165, 233, 0.25);
    }

    .dash-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }

    .dash-metric-box {
      background: var(--dark-surface);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .dash-metric-title {
      font-size: 0.8125rem;
      color: #94A3B8;
      margin-bottom: 8px;
    }

    .dash-metric-val {
      font-size: 1.85rem;
      font-weight: 800;
      color: #F8FAFC;
      letter-spacing: -0.02em;
    }

    .dash-metric-sub {
      font-size: 0.75rem;
      color: #10B981;
      margin-top: 6px;
    }

    .dash-body-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      gap: 24px;
    }

    .dash-bracket-box {
      background: var(--dark-surface);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .bracket-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      font-size: 0.875rem;
    }

    .bracket-team {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
    }

    .score-badge {
      background-color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
      font-family: monospace;
    }

    /* 5. 数字化赛事体系与平台介绍区 (#section-about) */
    .about-layout {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
    }

    .about-img-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--border-color);
      position: relative;
    }

    .about-img-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 0.8125rem;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .about-param-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-param-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .param-check {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.75rem;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* 6. 核心优势矩阵区 (#section-advantages) - 6宫格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .adv-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
    }

    .adv-card:hover {
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
      border-color: var(--primary);
    }

    .adv-icon-wrap {
      width: 50px;
      height: 50px;
      background: #EFF6FF;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .adv-card-h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .adv-card-p {
      font-size: 0.8875rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 7. 热门产品与解决方案区 (#section-solutions) - 3列大卡片 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .sol-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .sol-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
    }

    .sol-card-media {
      height:200px;
      overflow: hidden;
      position: relative;
    }

    .sol-card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .sol-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    .sol-card-body {
      padding: 28px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .sol-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .sol-desc {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .sol-features {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
      margin-bottom: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .sol-feature-li {
      font-size: 0.8125rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .sol-feature-li::before {
      content: "•";
      color: var(--accent);
      font-weight: bold;
      font-size: 1rem;
    }

    /* 8. 流程与赛事执行阶段区 (#section-workflow) - 4步时序 */
    .workflow-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .workflow-step {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .workflow-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 16px;
    }

    .workflow-h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .workflow-p {
      font-size: 0.825rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 9. 标杆用户故事/实战场景区 (#section-stories) */
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .story-media {
      height: 240px;
      position: relative;
    }

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

    .story-content {
      padding: 30px;
    }

    .story-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .story-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .story-p {
      font-size: 0.8875rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .story-data-badges {
      display: flex;
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .story-data-item {
      font-size: 0.8125rem;
    }

    .story-data-bold {
      font-weight: 700;
      color: var(--primary);
    }

    /* 10. 关键数据指标统计条 (#section-metrics) */
    .metrics-bar {
      background: linear-gradient(135deg, #1E3A8A 0%, #1E293B 100%);
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      box-shadow: var(--shadow-xl);
    }

    .metric-col {
      text-align: center;
      position: relative;
    }

    .metric-col:not(:last-child)::after {
      content: "";
      position: absolute;
      right: 0;
      top: 15%;
      height: 70%;
      width: 1px;
      background: rgba(255, 255, 255, 0.15);
    }

    .metric-number {
      font-size: 2.75rem;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1;
      margin-bottom: 10px;
      font-family: monospace;
    }

    .metric-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 4px;
    }

    .metric-subtext {
      font-size: 0.775rem;
      color: #94A3B8;
    }

    /* 11. 客户与赛事主办方评价区 (#section-testimonials) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testi-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-stars {
      color: var(--highlight);
      font-size: 1rem;
      letter-spacing: 2px;
      margin-bottom: 14px;
    }

    .testi-text {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .testi-name {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .testi-role {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* 12. 动态资讯与技术周报内嵌区 (#section-news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
    }

    .news-media {
      height: 170px;
      overflow: hidden;
    }

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

    .news-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .news-meta-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }

    .news-badge {
      font-size: 0.7rem;
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    .news-date {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .news-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .news-snippet {
      font-size: 0.825rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .news-anchor-link {
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 13. 电竞活动常见疑问 FAQ 答疑区 (#section-faq) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s ease;
    }

    .faq-item open {
      border-color: var(--primary);
    }

    .faq-summary {
      padding: 18px 22px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-summary::-webkit-details-marker {
      display: none;
    }

    .faq-summary::after {
      content: "+";
      font-size: 1.25rem;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.2s ease;
    }

    details[open] .faq-summary::after {
      content: "−";
    }

    .faq-content {
      padding: 0 22px 20px 22px;
      font-size: 0.8875rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px dashed var(--border-color);
      margin-top: 4px;
      padding-top: 14px;
    }

    /* 14. 终极转化与即时开通区 (#section-cta) */
    .cta-card-box {
      background: linear-gradient(135deg, #1E40AF 0%, #0F172A 100%);
      border-radius: var(--radius-lg);
      padding: 56px 44px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      box-shadow: var(--shadow-xl);
    }

    .cta-h2 {
      font-size: 2rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-p {
      font-size: 1rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-features-row {
      display: flex;
      gap: 20px;
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    .cta-form-inner {
      background: #FFFFFF;
      padding: 28px;
      border-radius: var(--radius-md);
      color: var(--text-main);
      box-shadow: var(--shadow-xl);
    }

    .cta-form-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 14px;
    }

    /* Footer */
    .site-footer {
      background-color: #0B1120;
      color: #94A3B8;
      border-top: 1px solid #1E293B;
      padding: 64px 0 28px;
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand {
      color: #F8FAFC;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-desc {
      font-size: 0.8125rem;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }

    .footer-col-h4 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 18px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

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

    .footer-link {
      color: #94A3B8;
      transition: color 0.2s ease;
    }

    .footer-link:hover {
      color: #FFFFFF;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 28px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.775rem;
      color: #64748B;
    }

    .trust-badges {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .trust-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* Modal for news preview */
    .news-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(15, 23, 42, 0.7);
      backdrop-filter: blur(4px);
      z-index: 100;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .news-modal-inner {
      background: #FFFFFF;
      max-width: 600px;
      width: 100%;
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      box-shadow: var(--shadow-xl);
    }

    .modal-close-btn {
      position: absolute;
      top: 20px;
      right: 20px;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-muted);
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .catalog-grid, .advantages-grid, .metrics-bar, .workflow-track {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-card-box {
        grid-template-columns: 1fr;
      }
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-bg-overlay {
        width: 100%;
        opacity: 0.05;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-xl);
        transform: translateY(-120%);
        transition: transform 0.3s ease;
        gap: 16px;
      }
      .nav-menu.active {
        transform: translateY(0);
      }
      .nav-action {
        display: none;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .about-layout, .stories-grid, .solutions-grid, .testimonials-grid, .news-grid, .dash-body-grid, .dash-metrics-grid {
        grid-template-columns: 1fr;
      }
      .workflow-track, .catalog-grid, .advantages-grid, .value-bento {
        grid-template-columns: 1fr;
      }
      .metric-col:not(:last-child)::after {
        display: none;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-qualifications {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .metrics-bar {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .hero-trial-card, .cta-card-box {
        padding: 24px 16px;
      }
    }