/* roulang page: index */
:root {
      --bg-primary: #0D1117;
      --bg-secondary: #161B22;
      --bg-surface: #21262D;
      --bg-elevated: #30363D;
      --brand-green: #00E676;
      --brand-cyan: #00F0FF;
      --brand-gradient: linear-gradient(135deg, #00E676 0%, #00F0FF 100%);
      --accent-orange: #FF5722;
      --accent-red: #F85149;
      --text-white: #FFFFFF;
      --text-main: #E6EDF3;
      --text-muted: #8B949E;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-hover: rgba(0, 230, 118, 0.4);
      --shadow-brand: 0 12px 32px rgba(0, 230, 118, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --container-max: 1240px;
      --transition-fast: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-primary);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-primary);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input {
      font-family: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部微型辅助条 */
    .topbar {
      background-color: #07090D;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 12px;
      color: var(--text-muted);
      padding: 8px 0;
    }

    .topbar-flex {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .status-pulse {
      width: 8px;
      height: 8px;
      background-color: var(--brand-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--brand-green);
      animation: pulseAnim 2s infinite;
    }

    @keyframes pulseAnim {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
      100% { opacity: 1; transform: scale(1); }
    }

    /* 主导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13, 17, 23, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-subtle);
      height: 72px;
      display: flex;
      align-items: center;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-white);
    }

    .brand-logo svg {
      width: 30px;
      height: 30px;
      flex-shrink: 0;
    }

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

    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

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

    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--brand-gradient);
      transition: width var(--transition-fast);
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all var(--transition-fast);
      border: 1px solid transparent;
      white-space: nowrap;
      min-height: 44px;
    }

    .btn-brand {
      background: var(--brand-gradient);
      color: #05140D;
      box-shadow: 0 4px 18px rgba(0, 230, 118, 0.28);
    }

    .btn-brand:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 26px rgba(0, 230, 118, 0.42);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.04);
      border-color: var(--border-subtle);
      color: var(--text-white);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.09);
      border-color: rgba(255, 255, 255, 0.2);
    }

    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-white);
      font-size: 24px;
      cursor: pointer;
      padding: 8px;
    }

    /* 通用章节样式 */
    .section-wrap {
      padding: 84px 0;
      position: relative;
    }

    .bg-darker {
      background-color: var(--bg-secondary);
    }

    .section-head {
      margin-bottom: 48px;
      max-width: 800px;
    }

    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-green);
      background: rgba(0, 230, 118, 0.1);
      border: 1px solid rgba(0, 230, 118, 0.2);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块一：Hero */
    .hero-section {
      padding: 70px 0 90px 0;
      background-image: linear-gradient(180deg, rgba(13, 17, 23, 0.85) 0%, rgba(13, 17, 23, 0.98) 100%), url('/assets/images/347523880cb529b3.png');
      background-size: cover;
      background-position: center;
      position: relative;
    }

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

    .hero-content h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-content h1 span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-summary {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.8;
    }

    .hero-checkpoints {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 36px;
    }

    .checkpoint-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      color: var(--text-main);
    }

    .checkpoint-item svg {
      width: 18px;
      height: 18px;
      color: var(--brand-green);
      flex-shrink: 0;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 28px;
    }

    .hero-compliance-hint {
      font-size: 13px;
      color: #6E7681;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-preview-board {
      background: var(--bg-secondary);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 24px;
      box-shadow: 0 20px 48px rgba(0, 0, 0, 0.45);
      position: relative;
    }

    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      margin-bottom: 18px;
      border-bottom: 1px solid var(--border-subtle);
    }

    .board-match-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .team-badge {
      font-weight: 700;
      color: var(--text-white);
      font-size: 16px;
    }

    .vs-sign {
      color: var(--accent-orange);
      font-weight: 800;
      font-size: 14px;
    }

    .board-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 20px;
    }

    .metric-card {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 12px 14px;
      border: 1px solid rgba(255, 255, 255, 0.04);
    }

    .metric-label {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .metric-value {
      font-size: 18px;
      font-weight: 800;
      color: var(--brand-green);
    }

    .prob-bar-container {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 16px;
      margin-bottom: 16px;
    }

    .prob-labels {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .prob-bar {
      height: 10px;
      border-radius: 5px;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      overflow: hidden;
    }

    .prob-fill-win { background: #00E676; width: 58%; }
    .prob-fill-draw { background: #FFC107; width: 24%; }
    .prob-fill-loss { background: #FF5722; width: 18%; }

    .board-footer {
      font-size: 12px;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
    }

    /* 板块二：内容日历 */
    .calendar-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .cal-card {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid var(--border-subtle);
      transition: transform var(--transition-fast), border-color var(--transition-fast);
    }

    .cal-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-hover);
    }

    .cal-time {
      font-size: 13px;
      font-weight: 700;
      color: var(--brand-green);
      margin-bottom: 8px;
    }

    .cal-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
    }

    .cal-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块三：热门专题 */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .topic-card {
      background: var(--bg-surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all var(--transition-fast);
    }

    .topic-card:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-brand);
    }

    .topic-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .topic-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

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

    .topic-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(13, 17, 23, 0.85);
      border: 1px solid var(--border-subtle);
      color: var(--brand-cyan);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 999px;
      font-weight: 600;
    }

    .topic-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .topic-body h3 {
      font-size: 19px;
      color: var(--text-white);
      margin-bottom: 12px;
      font-weight: 700;
    }

    .topic-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .topic-action {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--brand-green);
      font-weight: 600;
    }

    /* 板块四：观点解读 */
    .insights-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .insight-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 36px;
    }

    .insight-quote {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-white);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }

    .insight-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      border-top: 1px solid var(--border-subtle);
      padding-top: 16px;
    }

    .insight-author {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
    }

    .insight-role {
      font-size: 13px;
      color: var(--brand-green);
    }

    /* 板块五：深度资讯 */
    .news-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-item {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-date {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: block;
    }

    .news-item h4 {
      font-size: 18px;
      color: var(--text-white);
      margin-bottom: 12px;
      line-height: 1.5;
    }

    .news-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-link {
      color: var(--brand-cyan);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块六：媒体精选 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .media-card {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-subtle);
      text-align: left;
    }

    .media-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--brand-green);
      margin-bottom: 10px;
    }

    .media-snippet {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块七：数据分析 KPI 与算法回测 */
    .kpi-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-bottom: 40px;
    }

    .kpi-box {
      background: var(--bg-secondary);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      text-align: center;
    }

    .kpi-number {
      font-size: 38px;
      font-weight: 900;
      color: var(--brand-green);
      line-height: 1;
      margin-bottom: 8px;
      font-variant-numeric: tabular-nums;
    }

    .kpi-caption {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .chart-dual-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .chart-visual-box {
      background: var(--bg-secondary);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
      padding: 28px;
    }

    .chart-bar-row {
      margin-bottom: 18px;
    }

    .chart-bar-info {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .chart-progress-bg {
      height: 12px;
      background: var(--bg-surface);
      border-radius: 6px;
      overflow: hidden;
    }

    .chart-progress-fill {
      height: 100%;
      background: var(--brand-gradient);
      border-radius: 6px;
    }

    /* 板块八：传统 vs AI 对比 */
    .comparison-table-wrap {
      overflow-x: auto;
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-xl);
    }

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

    .compare-table th, .compare-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-subtle);
    }

    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .feature-name {
      font-weight: 600;
      color: var(--text-white);
      font-size: 15px;
    }

    .trad-cell {
      color: var(--text-muted);
      font-size: 14px;
    }

    .ai-cell {
      color: var(--brand-green);
      font-size: 15px;
      font-weight: 600;
    }

    /* 板块九：实测场景案例 */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .case-card {
      background: var(--bg-surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-subtle);
      padding: 32px;
    }

    .case-tag {
      font-size: 12px;
      color: var(--brand-cyan);
      background: rgba(0, 240, 255, 0.1);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 700;
      display: inline-block;
      margin-bottom: 12px;
    }

    .case-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 14px;
    }

    .case-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .case-data-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .data-pill {
      background: rgba(255, 255, 255, 0.05);
      padding: 6px 14px;
      border-radius: var(--radius-md);
      font-size: 13px;
      color: var(--text-main);
    }

    .data-pill b {
      color: var(--brand-green);
    }

    /* 板块十：平台保障与合规体系 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .guar-card {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      border: 1px solid var(--border-subtle);
      transition: all var(--transition-fast);
    }

    .guar-card:hover {
      border-color: var(--border-hover);
      transform: translateY(-3px);
    }

    .guar-icon {
      width: 44px;
      height: 44px;
      background: rgba(0, 230, 118, 0.1);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: var(--brand-green);
    }

    .guar-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
    }

    .guar-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块十一：常见异议拆解与 FAQ */
    .faq-list {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: border-color var(--transition-fast);
    }

    .faq-item.active {
      border-color: rgba(0, 230, 118, 0.3);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 17px;
      font-weight: 600;
      color: var(--text-white);
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 20px;
      color: var(--brand-green);
      transition: transform var(--transition-fast);
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      display: none;
      padding: 0 24px 22px 24px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块十二：订阅条与收口行动区 */
    .subscribe-box {
      background: linear-gradient(135deg, rgba(22, 27, 34, 0.95) 0%, rgba(13, 17, 23, 0.98) 100%);
      border: 1px solid rgba(0, 230, 118, 0.25);
      border-radius: var(--radius-xl);
      padding: 56px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-brand);
    }

    .subscribe-box h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
    }

    .subscribe-box p {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto 32px auto;
    }

    .subscribe-form {
      display: flex;
      max-width: 540px;
      margin: 0 auto 20px auto;
      gap: 12px;
    }

    .subscribe-input {
      flex: 1;
      height: 50px;
      padding: 0 18px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      color: var(--text-white);
      font-size: 15px;
      outline: none;
      transition: border-color var(--transition-fast);
    }

    .subscribe-input:focus {
      border-color: var(--brand-green);
      background: rgba(255, 255, 255, 0.08);
    }

    .subscribe-notice {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    /* 板块十三：合规风险与使用边界提示条 */
    .risk-banner {
      background: rgba(255, 87, 34, 0.06);
      border: 1px solid rgba(255, 87, 34, 0.2);
      border-radius: var(--radius-lg);
      padding: 20px 24px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-top: 40px;
    }

    .risk-icon {
      color: var(--accent-orange);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .risk-text {
      font-size: 13px;
      color: #D08B7A;
      line-height: 1.6;
    }

    /* 移动端吸底浮动转化条 */
    .mobile-float-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(13, 17, 23, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-top: 1px solid var(--border-subtle);
      padding: 10px 16px;
      display: none;
      justify-content: space-between;
      align-items: center;
      z-index: 999;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
    }

    .float-text {
      display: flex;
      flex-direction: column;
    }

    .float-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-white);
    }

    .float-sub {
      font-size: 11px;
      color: var(--brand-green);
    }

    /* 统一页脚 */
    .site-footer {
      background: #07090D;
      border-top: 1px solid var(--border-subtle);
      padding: 64px 0 32px 0;
      font-size: 14px;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h4 {
      font-size: 20px;
      color: var(--text-white);
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 380px;
    }

    .footer-col h5 {
      font-size: 16px;
      color: var(--text-white);
      margin-bottom: 18px;
      font-weight: 700;
    }

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

    .footer-links a {
      color: var(--text-muted);
      transition: color var(--transition-fast);
    }

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

    .footer-meta-block {
      line-height: 1.8;
      font-size: 13px;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .topics-grid, .calendar-timeline, .media-grid, .guarantee-grid, .kpi-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .insights-layout, .chart-dual-panel, .case-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: 0 16px 32px rgba(0,0,0,0.5);
      }
      .nav-menu.show {
        display: flex;
      }
      .topbar-flex {
        justify-content: center;
        text-align: center;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .topics-grid, .calendar-timeline, .media-grid, .guarantee-grid, .kpi-strip, .news-cards, .case-grid {
        grid-template-columns: 1fr;
      }
      .subscribe-form {
        flex-direction: column;
      }
      .mobile-float-bar {
        display: flex;
      }
      body {
        padding-bottom: 64px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }