/* roulang page: index */
:root {
      --primary: #3A36E0;
      --primary-hover: #2F2BC4;
      --primary-light: #EEF2FF;
      --accent: #00E599;
      --accent-hover: #00C885;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B0F19;
      --bg-dark-card: #151C2C;
      --text-heading: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-light: rgba(226, 232, 240, 0.85);
      --border-dark: rgba(255, 255, 255, 0.12);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 14px 28px -4px rgba(58, 54, 224, 0.14);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

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

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

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航与运营通报条 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--bg-white);
      box-shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
    }

    .top-activity-bar {
      background: #111827;
      color: #E2E8F0;
      font-size: 0.8125rem;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .top-announcement {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .live-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent);
      box-shadow: 0 0 8px var(--accent);
      display: inline-block;
    }

    .timeline-chips {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .chip-item {
      display: inline-flex;
      align-items: center;
      padding: 2px 10px;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 500;
      background: rgba(255, 255, 255, 0.1);
      color: #CBD5E1;
    }

    .chip-item.active {
      background: rgba(0, 229, 153, 0.16);
      color: var(--accent);
      border: 1px solid rgba(0, 229, 153, 0.4);
    }

    .main-nav {
      padding: 14px 0;
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-heading);
      letter-spacing: -0.02em;
    }

    .logo-mark {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), #6366F1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 900;
      font-size: 1.1rem;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
    }

    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 2px;
      position: relative;
    }

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

    .nav-link:hover::after, .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.9375rem;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #FFF;
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(58, 54, 224, 0.35);
      transform: translateY(-1px);
    }

    .btn-accent {
      background: var(--accent);
      color: #064E3B;
      font-weight: 700;
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(0, 229, 153, 0.4);
      transform: translateY(-1px);
    }

    .btn-outline {
      border-color: var(--border-light);
      background: var(--bg-white);
      color: var(--text-heading);
    }

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

    /* 板块排版骨架 */
    .section-spacing {
      padding: 80px 0;
      position: relative;
    }

    .section-spacing-alt {
      padding: 80px 0;
      background-color: #FFFFFF;
      position: relative;
    }

    .section-header {
      margin-bottom: 48px;
      max-width: 820px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 10px;
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 9999px;
    }

    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      color: var(--text-heading);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.015em;
    }

    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. Hero 路线图与订阅看板区 */
    .hero-section {
      background: linear-gradient(135deg, rgba(11, 15, 25, 0.94), rgba(15, 23, 42, 0.96)), url('/assets/images/c920f4893150765a.png') center/cover no-repeat;
      color: #FFFFFF;
      padding: 68px 0 56px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-title {
      font-size: 2.6rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }

    .hero-title span {
      background: linear-gradient(90deg, #60A5FA, var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .hero-roadmap-bar {
      display: flex;
      align-items: stretch;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 28px;
    }

    .roadmap-node {
      flex: 1;
      padding: 12px 14px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.8125rem;
    }

    .roadmap-node:last-child {
      border-right: none;
    }

    .node-ver {
      display: block;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 2px;
    }

    .node-text {
      color: #94A3B8;
      font-size: 0.775rem;
    }

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

    .hero-subscription-card {
      background: rgba(21, 28, 44, 0.95);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
    }

    .sub-card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 8px;
    }

    .sub-card-desc {
      font-size: 0.875rem;
      color: #94A3B8;
      margin-bottom: 20px;
    }

    .sub-kpi-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 22px;
    }

    .sub-kpi-box {
      background: rgba(255, 255, 255, 0.04);
      padding: 12px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.06);
    }

    .sub-kpi-val {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--accent);
      font-family: monospace;
    }

    .sub-kpi-lbl {
      font-size: 0.775rem;
      color: #94A3B8;
    }

    .subscribe-input-group {
      display: flex;
      gap: 8px;
    }

    .sub-input {
      flex: 1;
      background: rgba(0, 0, 0, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      color: #FFF;
      font-size: 0.875rem;
    }

    .sub-input:focus {
      outline: none;
      border-color: var(--accent);
    }

    /* 2. 资料目录导航区 */
    .docs-category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .docs-cat-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

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

    .cat-icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .docs-cat-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .docs-cat-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .docs-link-list {
      list-style: none;
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
    }

    .docs-link-list li {
      font-size: 0.8125rem;
      color: var(--text-body);
      padding: 4px 0;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .docs-link-list li::before {
      content: "•";
      color: var(--primary);
    }

    /* 3. 核心优势与价值点 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

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

    .feature-number {
      font-size: 0.875rem;
      font-weight: 800;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 10px;
      border-radius: 9999px;
      display: inline-block;
      margin-bottom: 14px;
    }

    .feature-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
    }

    .feature-text {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 4. 架构与性能参数图文区 */
    .architecture-box {
      background: var(--bg-dark);
      color: #FFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }

    .arch-specs-list {
      list-style: none;
      margin: 24px 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .arch-spec-item {
      display: flex;
      align-items: baseline;
      gap: 12px;
      font-size: 0.9375rem;
      color: #E2E8F0;
    }

    .spec-tag {
      font-family: monospace;
      font-weight: 700;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.12);
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.8125rem;
      white-space: nowrap;
    }

    .arch-terminal {
      background: #111827;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 20px;
      font-family: Consolas, Monaco, monospace;
      font-size: 0.8125rem;
      color: #A5B4FC;
      line-height: 1.7;
    }

    .terminal-header {
      display: flex;
      gap: 6px;
      margin-bottom: 14px;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .term-btn {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      display: inline-block;
    }

    /* 5. 关键指标图表看板 */
    .metrics-banner {
      background: linear-gradient(135deg, #1E1B4B, #0F172A);
      color: #FFF;
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-value {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: monospace;
    }

    .metric-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #FFF;
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 6. 热门产品矩阵区 */
    .games-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .game-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

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

    .game-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .game-type-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.8);
      backdrop-filter: blur(4px);
      color: #FFF;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: 9999px;
    }

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

    .game-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .game-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 14px;
    }

    .game-tag-item {
      font-size: 0.75rem;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .game-desc {
      font-size: 0.875rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      flex: 1;
    }

    .game-action {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border-light);
      padding-top: 16px;
    }

    .game-kpi-sub {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 7. 全域发行结果对比表 */
    .comparison-table-wrapper {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

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

    .comparison-table th, .comparison-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.9375rem;
    }

    .comparison-table th {
      background: #F1F5F9;
      color: var(--text-heading);
      font-weight: 700;
    }

    .comparison-table td.highlight {
      background: rgba(58, 54, 224, 0.03);
      color: var(--primary);
      font-weight: 700;
    }

    /* 8. 商业化联运里程碑 */
    .timeline-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .timeline-step-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

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

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.875rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 9. 开发者案例与故事 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .story-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .story-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .story-body {
      margin-bottom: 24px;
    }

    .story-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: #065F46;
      background: #D1FAE5;
      padding: 3px 10px;
      border-radius: 9999px;
      margin-bottom: 12px;
    }

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

    .story-text {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.75;
    }

    .story-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-light);
      padding-top: 18px;
    }

    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #E2E8F0;
      object-fit: cover;
    }

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

    .author-role {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 10. 开发者与玩家评价瀑布流 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .review-stars {
      color: #F59E0B;
      font-size: 0.9rem;
      margin-bottom: 10px;
      letter-spacing: 2px;
    }

    .review-quote {
      font-size: 0.875rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 16px;
    }

    .reviewer-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    .reviewer-name {
      font-weight: 600;
      color: var(--text-heading);
    }

    /* 11. 资讯动态与平台快报区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .news-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }

    .news-img {
      height: 160px;
      width: 100%;
      object-fit: cover;
    }

    .news-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .news-date {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .news-summary {
      font-size: 0.85rem;
      color: var(--text-body);
      line-height: 1.65;
      flex: 1;
      margin-bottom: 14px;
    }

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

    /* 12. 快速解答手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-heading);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FAFAFD;
      color: var(--text-body);
      font-size: 0.9375rem;
      line-height: 1.8;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 240px;
      padding: 0 24px 20px 24px;
      border-top: 1px dashed var(--border-light);
    }

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

    /* 13. 底部留资转化表单区 */
    .contact-card {
      background: linear-gradient(135deg, #1E1B4B, #0F172A);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: #FFF;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      box-shadow: 0 20px 45px rgba(15, 23, 42, 0.4);
    }

    .contact-info-title {
      font-size: 2rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .contact-info-desc {
      font-size: 0.95rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .contact-checks {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.875rem;
      color: #E2E8F0;
    }

    .contact-checks li {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-checks li::before {
      content: "✓";
      color: var(--accent);
      font-weight: 900;
    }

    .contact-form {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-md);
      color: var(--text-heading);
    }

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

    .form-label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(58, 54, 224, 0.15);
    }

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

    /* 浮动收口条 */
    .float-cta-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 10px 0;
      z-index: 900;
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }

    .float-cta-bar.show {
      transform: translateY(0);
    }

    .float-cta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .float-cta-text {
      color: #FFF;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .float-cta-text span {
      color: var(--accent);
    }

    /* 统一页脚 */
    .site-footer {
      background: #090D16;
      color: #94A3B8;
      font-size: 0.875rem;
      padding: 60px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 14px;
    }

    .footer-brand-desc {
      font-size: 0.8125rem;
      line-height: 1.8;
      max-width: 320px;
      margin-bottom: 16px;
    }

    .footer-col-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 18px;
    }

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

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.8125rem;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-layout, .architecture-box, .contact-card {
        grid-template-columns: 1fr;
      }
      .docs-category-grid, .features-grid, .timeline-flow {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-banner {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-activity-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .section-spacing, .section-spacing-alt {
        padding: 48px 0;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-roadmap-bar {
        flex-direction: column;
      }
      .roadmap-node {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      }
      .docs-category-grid, .features-grid, .games-grid, .stories-grid, .reviews-grid, .news-grid, .timeline-flow {
        grid-template-columns: 1fr;
      }
      .metrics-banner {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .contact-card {
        padding: 32px 20px;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .float-cta-inner {
        flex-direction: column;
        text-align: center;
      }
    }