/* roulang page: index */
:root {
      --primary: #0052D9;
      --primary-hover: #003cab;
      --accent: #00D4B2;
      --accent-dark: #00a88d;
      --contrast: #FF5E36;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B1120;
      --bg-dark-card: #151E32;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #F8FAFC;
      --text-light-muted: #94A3B8;
      --border: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 6px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 16px 36px -4px rgba(0, 82, 217, 0.12);
      --transition: all 0.28s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

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

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

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Bar */
    .top-bar {
      background: #060B16;
      color: var(--text-light-muted);
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-info {
      display: flex;
      gap: 20px;
    }
    .top-info span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* Header Nav */
    .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);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-logo-badge {
      font-size: 11px;
      background: rgba(0, 82, 217, 0.1);
      color: var(--primary);
      padding: 2px 6px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta-btn {
      background: var(--primary);
      color: #fff;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .nav-cta-btn:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    /* Section Utilities */
    .section-padding {
      padding: 84px 0;
    }
    .section-dark {
      background: var(--bg-dark);
      color: var(--text-light);
    }
    .section-white {
      background: var(--bg-white);
    }
    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(0, 82, 217, 0.08);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
    }
    .section-dark .section-tag {
      color: var(--accent);
      background: rgba(0, 212, 178, 0.12);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: var(--text-light-muted);
    }

    /* 1. Hero Section (双栏门户：左主张右快捷入口) */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, rgba(0, 82, 217, 0.08), transparent 45%), linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 64px 0 84px 0;
      border-bottom: 1px solid var(--border);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #EBF2FE;
      color: var(--primary);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 20px;
      border: 1px solid rgba(0, 82, 217, 0.2);
    }
    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.2;
      color: #0B1120;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      padding: 13px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid transparent;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(0, 82, 217, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: #FFFFFF;
      color: var(--text-main);
      padding: 13px 26px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid var(--border);
    }
    .btn-secondary:hover {
      background: #F8FAFC;
      border-color: #CBD5E1;
    }
    .hero-tech-badges {
      display: flex;
      gap: 20px;
      border-top: 1px dashed var(--border);
      padding-top: 24px;
    }
    .tech-item {
      display: flex;
      flex-direction: column;
    }
    .tech-item strong {
      font-size: 18px;
      color: var(--primary);
      font-weight: 800;
    }
    .tech-item span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Hero Right Portal Grid */
    .portal-panel {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
    }
    .portal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
    }
    .portal-header h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
    }
    .portal-grid-boxes {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }
    .portal-card {
      background: #F8FAFC;
      border: 1px solid #EDF2F7;
      border-radius: var(--radius-md);
      padding: 18px 14px;
      display: block;
      transition: var(--transition);
    }
    .portal-card:hover {
      background: #FFFFFF;
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .portal-icon {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .portal-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .portal-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 2. 行业痛点对比 (Pain Points) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-top: 4px solid var(--contrast);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
    }
    .pain-card h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #0F172A;
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .pain-fix {
      background: #F0FDF4;
      border-left: 3px solid #16A34A;
      padding: 10px 12px;
      font-size: 13px;
      color: #15803D;
      font-weight: 600;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }

    /* 3. 已上线能力 (Launched Capabilities) */
    .caps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .cap-item {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .cap-item:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .cap-img-wrap {
      width: 100%;
      height: 190px;
      overflow: hidden;
      background: #E2E8F0;
    }
    .cap-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .cap-item:hover .cap-img-wrap img {
      transform: scale(1.05);
    }
    .cap-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .cap-badge-row {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
    }
    .badge-status {
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      background: #DEF7EC;
      color: #03543F;
    }
    .cap-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .cap-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
      margin-bottom: 16px;
    }
    .cap-spec {
      font-size: 12px;
      color: var(--primary);
      font-weight: 600;
      border-top: 1px solid #F1F5F9;
      padding-top: 12px;
    }

    /* 4. 进行中技术攻坚 (In Progress) */
    .progress-matrix {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .progress-box {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .progress-box-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }
    .progress-box h4 {
      font-size: 17px;
      font-weight: 700;
    }
    .pct-tag {
      font-size: 13px;
      font-weight: 800;
      color: var(--primary);
    }
    .bar-bg {
      height: 8px;
      width: 100%;
      background: #E2E8F0;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 12px;
    }
    .bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 4px;
    }
    .progress-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 5. 规划中前沿版图 (Roadmap / Planning) */
    .roadmap-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .roadmap-node {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 22px 20px;
      position: relative;
    }
    .node-phase {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      color: var(--accent);
      background: rgba(0, 212, 178, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .roadmap-node h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .roadmap-node p {
      font-size: 13px;
      color: var(--text-light-muted);
      line-height: 1.5;
    }

    /* 6. 算法与核心技术优势 (Advantages 2x3 Grid) */
    .adv-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
    }
    .adv-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .adv-metric {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 6px;
      font-family: monospace, sans-serif;
    }
    .adv-card h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .adv-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 工程实施与交付工作流 (Workflow 4 Steps) */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .flow-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }
    .flow-number {
      font-size: 24px;
      font-weight: 900;
      color: var(--primary);
      opacity: 0.3;
      margin-bottom: 8px;
    }
    .flow-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .flow-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 8. 沉浸式场景案例实录 (Cases & Stories) */
    .case-split-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
      margin-bottom: 40px;
    }
    .case-img-block {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      background: #000;
    }
    .case-img-block img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      opacity: 0.9;
    }
    .case-info-block h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 14px;
    }
    .case-info-block p {
      font-size: 15px;
      color: var(--text-light-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .case-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid var(--border-dark);
      padding-top: 16px;
    }
    .case-stat-item strong {
      display: block;
      font-size: 20px;
      font-weight: 800;
      color: var(--accent);
    }
    .case-stat-item span {
      font-size: 12px;
      color: var(--text-light-muted);
    }

    /* 9. 适用人群与匹配画像 (Audience Segment) */
    .persona-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .persona-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .persona-card.fit {
      border-top: 4px solid #16A34A;
    }
    .persona-card.not-fit {
      border-top: 4px solid #64748B;
      background: #FAFAFA;
    }
    .persona-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .persona-card ul {
      list-style: none;
      margin-top: 16px;
    }
    .persona-card li {
      font-size: 14px;
      color: var(--text-muted);
      padding: 6px 0;
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.5;
    }

    /* 10. 性能与落标数据指标 (Metrics Bar) */
    .metrics-bar-wrap {
      background: #060B16;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 48px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-box h3 {
      font-size: 42px;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 6px;
      font-family: monospace, sans-serif;
    }
    .metric-box p {
      font-size: 14px;
      color: var(--text-light-muted);
    }

    /* 11. 更新日志与版本记录 (Changelog) */
    .changelog-list {
      max-width: 860px;
      margin: 0 auto;
      border-left: 2px solid var(--border);
      padding-left: 28px;
    }
    .changelog-item {
      position: relative;
      margin-bottom: 32px;
    }
    .changelog-dot {
      position: absolute;
      left: -35px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #fff;
    }
    .changelog-version {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .changelog-item h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .changelog-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 行业前沿技术资讯 (News Insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-card h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
      margin-bottom: 16px;
    }
    .news-btn {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      align-self: flex-start;
      cursor: pointer;
    }

    /* 13. 平台保障与退换机制承诺 (Platform Guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guarantee-box {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .guarantee-box h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .guarantee-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 14. 订阅更新与转化收口 (Subscription & CTA) */
    .subscribe-box {
      background: linear-gradient(135deg, #0B1120 0%, #151E32 100%);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .sub-form {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .sub-input-row {
      display: flex;
      gap: 10px;
    }
    .form-input {
      width: 100%;
      padding: 13px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-dark);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 14px;
      outline: none;
    }
    .form-input:focus {
      border-color: var(--accent);
      background: rgba(255, 255, 255, 0.12);
    }
    .form-input::placeholder {
      color: #64748B;
    }
    .sub-btn {
      background: var(--accent);
      color: #0B1120;
      font-weight: 700;
      border: none;
      padding: 13px 24px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      white-space: nowrap;
      transition: var(--transition);
    }
    .sub-btn:hover {
      background: var(--accent-dark);
      color: #fff;
    }

    /* Site Footer */
    .site-footer {
      background: #060B16;
      color: var(--text-light-muted);
      padding: 64px 0 24px 0;
      border-top: 1px solid var(--border-dark);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-contact-item {
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .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;
    }

    /* Floating Conversion Bar */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(11, 17, 32, 0.96);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(0, 212, 178, 0.3);
      padding: 12px 0;
      z-index: 999;
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }
    .floating-bar.show {
      transform: translateY(0);
    }
    .floating-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .floating-info {
      color: #fff;
      font-size: 14px;
    }
    .floating-info strong {
      color: var(--accent);
    }

    /* Mobile Responsive */
    @media (max-width: 1024px) {
      .hero-grid, .case-split-grid, .subscribe-box {
        grid-template-columns: 1fr;
      }
      .caps-grid, .adv-grid, .news-grid, .guarantee-grid, .pain-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .roadmap-track, .flow-steps, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-menu { display: none; }
      .section-padding { padding: 48px 0; }
      .hero-title { font-size: 30px; }
      .caps-grid, .adv-grid, .news-grid, .guarantee-grid, .pain-grid, .progress-matrix, .roadmap-track, .flow-steps, .persona-grid, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .portal-grid-boxes {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .floating-inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
      }
      .sub-input-row {
        flex-direction: column;
      }
    }