/* roulang page: index */
:root {
      --primary: #0F172A;
      --primary-dark: #0B1120;
      --accent: #06B6D4;
      --accent-hover: #0891B2;
      --brand-blue: #3B82F6;
      --brand-blue-hover: #2563EB;
      --bg-light: #F8FAFC;
      --bg-alt: #F1F5F9;
      --surface: #FFFFFF;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --text-main: #334155;
      --text-title: #020617;
      --text-muted: #64748B;
      --text-white: #F8FAFC;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-hover: 0 16px 32px -8px rgba(15,23,42,0.14);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --max-width: 1240px;
    }

    * {
      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;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-topbar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 13px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 6px 0;
    }

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

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

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

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

    .header-main {
      padding: 12px 0;
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-title);
      letter-spacing: -0.5px;
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--brand-blue), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 18px;
    }

    .segmented-nav {
      display: flex;
      background: var(--bg-alt);
      padding: 4px;
      border-radius: 9999px;
      border: 1px solid var(--border-color);
      overflow-x: auto;
      max-width: 620px;
    }

    .nav-chip {
      padding: 6px 16px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 9999px;
      white-space: nowrap;
      transition: var(--transition);
    }

    .nav-chip:hover {
      color: var(--text-title);
    }

    .nav-chip.active {
      background: #FFFFFF;
      color: var(--brand-blue);
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
      font-weight: 600;
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      gap: 8px;
    }

    .btn-primary {
      background-color: var(--brand-blue);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--brand-blue-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(59, 130, 246, 0.35);
    }

    .btn-secondary {
      background-color: var(--surface);
      color: var(--text-title);
      border-color: var(--border-color);
    }

    .btn-secondary:hover {
      border-color: var(--brand-blue);
      color: var(--brand-blue);
      transform: translateY(-2px);
    }

    .btn-cyan {
      background-color: var(--accent);
      color: #042F2E;
      font-weight: 700;
    }

    .btn-cyan:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
    }

    /* 板块通用间距与标题 */
    .section-padding {
      padding: 90px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-alt);
    }

    .section-dark {
      background-color: var(--primary-dark);
      color: var(--text-white);
    }

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

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--brand-blue);
      background: rgba(59, 130, 246, 0.1);
      padding: 4px 12px;
      border-radius: 9999px;
      margin-bottom: 12px;
    }

    .section-dark .section-tag {
      background: rgba(6, 182, 212, 0.15);
      color: var(--accent);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-title);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-dark .section-title {
      color: #ffffff;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.8;
    }

    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 板块一：Hero */
    .hero-section {
      padding: 80px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.08), transparent 40%),
                  linear-gradient(180deg, #FFFFFF 0%, var(--bg-light) 100%);
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-h1 {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-title);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

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

    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-main);
      margin-bottom: 24px;
    }

    .checklist-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 16px 24px;
      margin-bottom: 32px;
      padding: 14px 18px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .check-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-title);
    }

    .check-icon {
      color: #10B981;
      font-weight: bold;
    }

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

    .hero-media-wrapper {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.2);
      border: 1px solid var(--border-color);
      background: var(--surface);
    }

    .hero-engine-support {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .engine-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      white-space: nowrap;
    }

    .engine-badges {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .engine-badge {
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      background: #E2E8F0;
      color: #475569;
      border-radius: var(--radius-sm);
    }

    /* 板块二：核心矩阵 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      padding: 32px 28px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

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

    .feature-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }

    .feature-icon-box {
      width: 46px;
      height: 46px;
      background: rgba(59, 130, 246, 0.1);
      color: var(--brand-blue);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 20px;
    }

    .feature-metric-badge {
      font-size: 12px;
      font-weight: 700;
      color: #0284C7;
      background: #E0F2FE;
      padding: 3px 8px;
      border-radius: 4px;
    }

    .feature-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块三：架构概览 */
    .arch-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .arch-image-panel {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .arch-points {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .arch-point-item {
      display: flex;
      gap: 14px;
      background: var(--surface);
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .point-dot {
      width: 10px;
      height: 10px;
      background-color: var(--accent);
      border-radius: 50%;
      margin-top: 8px;
      flex-shrink: 0;
    }

    .point-text h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 4px;
    }

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

    /* 板块四：六维优势网格 */
    .grid-6-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .advantage-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      padding: 28px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }

    .advantage-card:hover {
      border-color: var(--brand-blue);
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }

    .card-badge-row {
      display: flex;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .adv-status-tag {
      font-size: 12px;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 4px;
      background: #F1F5F9;
      color: #475569;
    }

    .advantage-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
    }

    .advantage-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块五：产品套件 */
    .suite-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .suite-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .suite-card.highlight {
      border: 2px solid var(--brand-blue);
      box-shadow: 0 12px 30px -10px rgba(59, 130, 246, 0.25);
    }

    .featured-ribbon {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--brand-blue);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 14px;
      border-radius: 9999px;
      letter-spacing: 0.5px;
    }

    .suite-card h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-title);
      margin-bottom: 12px;
    }

    .suite-specs-list {
      list-style: none;
      margin: 24px 0;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .suite-specs-list li {
      font-size: 14px;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
    }

    .suite-specs-list li span:last-child {
      font-weight: 600;
      color: var(--text-title);
    }

    /* 板块六：业务场景 */
    .scenario-container {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 36px;
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
    }

    .scenario-nav {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .scenario-tab {
      padding: 18px 20px;
      background: var(--bg-alt);
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: left;
    }

    .scenario-tab.active {
      background: #FFFFFF;
      border-color: var(--brand-blue);
      box-shadow: var(--shadow-md);
    }

    .scenario-tab h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 4px;
    }

    .scenario-tab p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .scenario-content {
      border-left: 1px solid var(--border-color);
      padding-left: 36px;
    }

    .scenario-content h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-title);
      margin-bottom: 16px;
    }

    .scenario-content p {
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.8;
    }

    /* 板块七：深色基准与理念 */
    .bench-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .bench-code-box {
      background: #020617;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      color: #38BDF8;
      overflow-x: auto;
      line-height: 1.6;
    }

    .bench-stat-bars {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .bench-bar-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .bench-bar-label {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      color: #94A3B8;
    }

    .progress-track {
      height: 10px;
      background: #1E293B;
      border-radius: 9999px;
      overflow: hidden;
    }

    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--brand-blue), var(--accent));
      border-radius: 9999px;
    }

    /* 板块八：数据统计横幅 */
    .metrics-bar {
      background: var(--surface);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      text-align: center;
    }

    .metric-col {
      padding: 0 20px;
      position: relative;
    }

    .metric-col:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 15%;
      height: 70%;
      width: 1px;
      background-color: var(--border-color);
    }

    .metric-number {
      font-size: 38px;
      font-weight: 900;
      color: var(--text-title);
      line-height: 1.1;
      margin-bottom: 6px;
      letter-spacing: -0.5px;
    }

    .metric-number span {
      color: var(--brand-blue);
      font-size: 26px;
    }

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

    /* 板块九：案例对比 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

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

    .story-body {
      padding: 30px;
    }

    .story-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--brand-blue);
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .story-body h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-title);
      margin-bottom: 12px;
    }

    .story-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .story-contrast {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      background: var(--bg-alt);
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .contrast-item h5 {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .contrast-item p {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 0;
    }

    /* 板块十：客户口碑 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testi-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      padding: 32px 26px;
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .quote-mark {
      font-size: 32px;
      color: var(--brand-blue);
      line-height: 1;
      margin-bottom: 10px;
    }

    .testi-card p {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 20px;
    }

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

    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-alt);
      overflow: hidden;
    }

    .user-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-title);
    }

    .user-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块十一：技术动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-meta {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .news-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .news-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-tag {
      font-size: 11px;
      font-weight: 600;
      background: var(--bg-alt);
      color: var(--text-muted);
      padding: 2px 8px;
      border-radius: 4px;
      align-self: flex-start;
    }

    /* 板块十二：FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .faq-item.active {
      border-color: var(--brand-blue);
      box-shadow: var(--shadow-sm);
    }

    .faq-header {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-indicator {
      font-size: 18px;
      color: var(--brand-blue);
      transition: transform 0.25s ease;
    }

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

    .faq-body {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: all 0.3s cubic-bezier(0, 1, 0, 1);
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.75;
    }

    .faq-item.active .faq-body {
      padding-bottom: 20px;
      max-height: 500px;
      transition: all 0.3s cubic-bezier(1, 0, 1, 0);
    }

    /* 底部收口与保障区 */
    .pre-footer-section {
      background: linear-gradient(180deg, var(--bg-light) 0%, #FFFFFF 100%);
      padding: 70px 0;
      border-top: 1px solid var(--border-color);
    }

    .pre-footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .guarantee-badges {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }

    .g-badge {
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }

    .g-badge-icon {
      width: 24px;
      height: 24px;
      background: rgba(16, 185, 129, 0.1);
      color: #10B981;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: bold;
      flex-shrink: 0;
    }

    .g-badge-text h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 2px;
    }

    .g-badge-text p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .quick-cta-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      padding: 32px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      text-align: center;
    }

    .quick-cta-card h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-title);
      margin-bottom: 10px;
    }

    .quick-cta-card p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 页脚 Footer */
    .site-footer {
      background-color: var(--primary-dark);
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .footer-brand h4 {
      font-size: 18px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      max-width: 320px;
    }

    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .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;
      font-size: 13px;
    }

    /* 移动端固定浮动转化条 */
    .mobile-fixed-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 999;
      background: rgba(15, 23, 42, 0.92);
      backdrop-filter: blur(10px);
      padding: 10px 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
    }

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

    .mobile-bar-btn {
      flex: 1;
      height: 44px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .features-grid, .grid-6-cards, .suite-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-container {
        grid-template-columns: 1fr;
      }
      .scenario-content {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: 24px;
      }
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .arch-layout, .bench-grid, .stories-grid, .pre-footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }
      .segmented-nav {
        display: none;
      }
      .section-padding {
        padding: 60px 0;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .features-grid, .grid-6-cards, .suite-grid, .testimonials-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px 0;
      }
      .metric-col:not(:last-child)::after {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .mobile-fixed-bar {
        display: block;
      }
      body {
        padding-bottom: 64px;
      }
    }