/* roulang page: index */
:root {
      --primary: #0F241D;
      --accent: #00E575;
      --accent-hover: #00c966;
      --bg-light: #F4F6F5;
      --bg-card: #FFFFFF;
      --bg-dark: #111413;
      --bg-dark-card: #181D1B;
      --text-main: #0B0F0D;
      --text-body: #3D4743;
      --text-muted: #788580;
      --text-inverse: #EDF3F0;
      --border-light: rgba(0, 0, 0, 0.08);
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --transition: all 0.2s ease-out;
      --max-width: 1280px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-body);
      background-color: #FFFFFF;
      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;
    }

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

    /* 顶部双行导航 */
    .top-bar {
      height: 38px;
      background: var(--bg-dark);
      color: #9AA6A1;
      font-size: 13px;
      border-bottom: 1px solid var(--border-dark);
      display: flex;
      align-items: center;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .status-pulse {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo::before {
      content: "";
      width: 14px;
      height: 14px;
      background: var(--accent);
      border-radius: 2px;
      display: inline-block;
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      list-style: none;
      align-items: center;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
    }
    .nav-link:hover {
      color: var(--accent-hover);
    }
    .header-cta-btn {
      background: var(--accent);
      color: var(--primary);
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      display: inline-block;
    }
    .header-cta-btn:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }

    /* Section 基础样式 */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-head {
      margin-bottom: 56px;
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #0c8a49;
      background: rgba(0, 229, 117, 0.15);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 36px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.8;
    }

    /* 1. Hero 沉浸 Banner（Before / After 对比结构） */
    .hero-section {
      padding: 60px 0 100px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 117, 0.08) 0%, rgba(255, 255, 255, 0) 60%), #FFFFFF;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .hero-content p {
      font-size: 16px;
      color: var(--text-body);
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .btn-primary {
      background: var(--accent);
      color: var(--primary);
      padding: 14px 28px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--accent);
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: transparent;
      color: var(--text-main);
      border: 1px solid var(--border-light);
      padding: 14px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
    }
    .btn-secondary:hover {
      background: var(--bg-light);
      transform: translateY(-2px);
    }

    /* Hero 并置对比面板 */
    .hero-compare-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      background: var(--bg-light);
      padding: 16px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
    }
    .compare-side {
      background: #FFFFFF;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(0,0,0,0.04);
    }
    .compare-side.vr-side {
      background: var(--primary);
      color: var(--text-inverse);
      border-color: rgba(0, 229, 117, 0.3);
    }
    .side-badge {
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 2px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .side-badge.legacy {
      background: #EAEFED;
      color: #55625D;
    }
    .side-badge.active-vr {
      background: var(--accent);
      color: var(--primary);
    }
    .compare-side h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .compare-side p {
      font-size: 13px;
      line-height: 1.6;
      color: inherit;
      opacity: 0.85;
      margin-bottom: 14px;
    }
    .compare-side .media-frame {
      border-radius: var(--radius-sm);
      overflow: hidden;
      aspect-ratio: 4/3;
      position: relative;
    }
    .compare-side .media-frame img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 2. 核心指标看板 */
    .metrics-section {
      background: var(--primary);
      color: #FFFFFF;
      padding: 64px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      padding: 24px;
      border-left: 2px solid var(--accent);
      background: rgba(255, 255, 255, 0.03);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .metric-value {
      font-size: 40px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }
    .metric-unit {
      font-size: 18px;
      font-weight: 600;
      color: #A3B5AC;
      margin-left: 4px;
    }
    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: #EDF3F0;
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: #7D8F86;
      line-height: 1.5;
    }

    /* 3. 架构与技术规范介绍 */
    .architecture-section {
      background: #FFFFFF;
    }
    .arch-wrap {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }
    .arch-text h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.3;
    }
    .arch-text p {
      font-size: 15px;
      color: var(--text-body);
      margin-bottom: 16px;
      line-height: 1.8;
    }
    .spec-box {
      margin-top: 24px;
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      padding: 20px;
      border-radius: var(--radius-md);
    }
    .spec-item {
      display: flex;
      gap: 12px;
      font-size: 13px;
      color: var(--text-body);
      margin-bottom: 10px;
    }
    .spec-item:last-child {
      margin-bottom: 0;
    }
    .spec-dot {
      color: var(--accent);
      font-weight: bold;
    }
    .arch-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: 0 16px 36px rgba(0,0,0,0.06);
    }

    /* 4. 服务与训练矩阵 (3x2 网格) */
    .matrix-section {
      background: var(--bg-light);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: #FFFFFF;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 229, 117, 0.5);
      box-shadow: 0 12px 24px rgba(15, 36, 29, 0.05);
    }
    .card-num {
      font-size: 14px;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 12px;
      letter-spacing: 0.05em;
    }
    .matrix-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 5. 硬件与套件区 (3卡片横向，带高亮) */
    .hardware-section {
      background: #FFFFFF;
    }
    .hw-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .hw-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }
    .hw-card.recommended {
      border: 2px solid var(--accent);
      background: #FAFCFB;
      box-shadow: 0 12px 30px rgba(0, 229, 117, 0.1);
    }
    .recom-badge {
      position: absolute;
      top: -14px;
      right: 24px;
      background: var(--accent);
      color: var(--primary);
      font-size: 11px;
      font-weight: 800;
      padding: 4px 10px;
      border-radius: 2px;
      text-transform: uppercase;
    }
    .hw-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .hw-target {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .hw-features {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .hw-features li {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hw-features li::before {
      content: "✓";
      color: var(--accent);
      font-weight: 800;
    }
    .hw-action-btn {
      text-align: center;
      padding: 12px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      background: #FFFFFF;
      color: var(--text-main);
    }
    .hw-card.recommended .hw-action-btn {
      background: var(--accent);
      border-color: var(--accent);
      color: var(--primary);
    }

    /* 6. 训练结果对比区 */
    .compare-section {
      background: var(--bg-light);
    }
    .compare-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
    }
    .comp-row {
      display: grid;
      grid-template-columns: 2fr 3fr 3fr;
      padding: 22px 28px;
      border-bottom: 1px solid var(--border-light);
      align-items: center;
    }
    .comp-row:last-child {
      border-bottom: none;
    }
    .comp-row.comp-head {
      background: #F1F4F3;
      font-weight: 800;
      font-size: 15px;
      color: var(--text-main);
    }
    .col-dim {
      font-weight: 700;
      color: var(--text-main);
      font-size: 15px;
    }
    .col-legacy {
      color: #6C7A74;
      font-size: 14px;
    }
    .col-vr {
      color: #0c8a49;
      font-weight: 700;
      font-size: 15px;
    }

    /* 7. 深色理念与虚拟竞技案例 */
    .dark-case-section {
      background: var(--bg-dark);
      color: var(--text-inverse);
    }
    .dark-case-section .section-title {
      color: #FFFFFF;
    }
    .dark-case-section .section-desc {
      color: #9AA6A1;
    }
    .case-cards {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .case-card {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .case-thumb {
      height: 240px;
      overflow: hidden;
      position: relative;
    }
    .case-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.85;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-thumb img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 28px;
    }
    .case-tag {
      font-size: 11px;
      color: var(--accent);
      text-transform: uppercase;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .case-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .case-body p {
      font-size: 14px;
      color: #9DAEA5;
      line-height: 1.7;
    }

    /* 8. 技术演进与版本里程碑 */
    .milestone-section {
      background: #FFFFFF;
    }
    .timeline-wrap {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
    }
    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 2px;
      background: #DFE5E2;
      transform: translateX(-50%);
    }
    .timeline-node {
      display: flex;
      justify-content: flex-end;
      padding-right: calc(50% + 36px);
      position: relative;
      margin-bottom: 44px;
    }
    .timeline-node:nth-child(even) {
      justify-content: flex-start;
      padding-right: 0;
      padding-left: calc(50% + 36px);
    }
    .node-dot {
      width: 16px;
      height: 16px;
      background: #FFFFFF;
      border: 4px solid var(--accent);
      border-radius: 50%;
      position: absolute;
      left: 50%;
      top: 6px;
      transform: translateX(-50%);
      z-index: 2;
    }
    .node-content {
      background: var(--bg-light);
      padding: 20px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      max-width: 380px;
    }
    .node-time {
      font-size: 12px;
      font-weight: 800;
      color: #0c8a49;
      margin-bottom: 4px;
    }
    .node-content h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .node-content p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 9. 真实实战故事与运动员案例 */
    .stories-section {
      background: var(--bg-light);
    }
    .story-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 32px;
    }
    .story-item:last-child {
      margin-bottom: 0;
    }
    .story-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      aspect-ratio: 16/10;
    }
    .story-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-text blockquote {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.8;
      margin-bottom: 20px;
      position: relative;
      padding-left: 20px;
      border-left: 3px solid var(--accent);
    }
    .story-author {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .story-role {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 10. 权威评价区 (3列) */
    .testimonials-section {
      background: #FFFFFF;
    }
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #E2B200;
      font-size: 14px;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .testi-text {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .testi-user {
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }
    .testi-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .testi-org {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 资讯动态列表 (3篇) */
    .news-section {
      background: var(--bg-light);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 40px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: rgba(0, 229, 117, 0.6);
      transform: translateY(-3px);
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .news-cat {
      color: #0c8a49;
      font-weight: 700;
    }
    .news-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.5;
      margin-bottom: 12px;
    }
    .news-card p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.7;
    }
    .news-more-wrap {
      text-align: center;
    }

    /* 12. 合规安全与保障 (4列图章) */
    .trust-section {
      background: #FFFFFF;
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .trust-card {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);      padding: 24px 20px;
      text-align: center;
      background: #FAFCFB;
    }
    .trust-badge-icon {
      width: 44px;
      height: 44px;
      margin: 0 auto 14px;
      border-radius: var(--radius-sm);
      background: rgba(0, 229, 117, 0.12);
      color: #0c8a49;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }
    .trust-card h3 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .trust-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 13. FAQ 手风琴与底部转化表单 */
    .faq-cta-section {
      background: linear-gradient(180deg, var(--bg-light) 0%, #FFFFFF 100%);
    }
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto 72px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      min-height: 52px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      background: transparent;
      border: none;
      cursor: pointer;
      text-align: left;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .faq-indicator {
      font-size: 18px;
      line-height: 1;
      color: #0c8a49;
      transition: var(--transition);
      flex-shrink: 0;
    }
    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.8;
      border-top: 1px solid rgba(0, 0, 0, 0.04);
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-item.active .faq-indicator {
      transform: rotate(45deg);
    }

    .cta-card {
      max-width: 900px;
      margin: 0 auto;
      background: var(--bg-dark);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-dark);
      padding: 44px;
      box-shadow: 0 24px 48px rgba(15, 36, 29, 0.12);
    }
    .cta-card h2 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #FFFFFF;
    }
    .cta-card p {
      font-size: 14px;
      color: #9AA6A1;
      margin-bottom: 28px;
    }
    .cta-form {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-label {
      font-size: 12px;
      font-weight: 600;
      color: #C5D0CB;
    }
    .form-input, .form-select {
      width: 100%;
      height: 44px;
      background: #181D1B;
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 229, 117, 0.2);
    }
    .form-input::placeholder {
      color: #6C7A74;
    }
    .form-terms {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: #8C9C94;
    }
    .form-terms input {
      accent-color: var(--accent);
    }
    .form-submit-btn {
      height: 46px;
      background: var(--accent);
      color: var(--primary);
      font-size: 15px;
      font-weight: 800;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
    }
    .form-submit-btn:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }

    /* 页脚 */
    .site-footer {
      background: #0B0E0D;
      color: #8E9C95;
      padding: 64px 0 28px;
      border-top: 1px solid var(--border-dark);
      font-size: 13px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 44px;
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 14px;
    }
    .footer-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .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;
      flex-wrap: wrap;
      gap: 12px;
      line-height: 1.6;
    }
    .footer-bottom a {
      color: var(--accent);
    }

    /* 移动端菜单抽屉 */
    .mobile-toggle {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
      flex-direction: column;
      gap: 5px;
    }
    .mobile-toggle span {
      width: 22px;
      height: 2px;
      background: var(--text-main);
      display: block;
      transition: var(--transition);
    }

    @media (max-width: 1024px) {
      .hero-grid, .arch-wrap, .story-item {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .matrix-grid, .hw-grid, .case-cards, .testi-grid, .news-grid, .trust-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 64px 0;
      }
      .section-title {
        font-size: 28px;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .hero-compare-box {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .matrix-grid, .hw-grid, .case-cards, .testi-grid, .news-grid, .trust-grid {
        grid-template-columns: 1fr;
      }
      .comp-row {
        grid-template-columns: 1fr;
        gap: 6px;
      }
      .timeline-wrap::before {
        left: 14px;
      }
      .timeline-node, .timeline-node:nth-child(even) {
        padding-left: 36px;
        padding-right: 0;
        justify-content: flex-start;
      }
      .node-dot {
        left: 14px;
      }
      .cta-card {
        padding: 24px 18px;
      }
      .cta-form {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
      }
      .mobile-toggle {
        display: flex;
      }
      .nav-menu {
        position: fixed;
        top: 110px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 12px 24px rgba(0,0,0,0.06);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .header-cta-btn {
        display: none;
      }
    }