/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0b4196;
      --primary-light: #EBF3FE;
      --accent: #00A896;
      --accent-dark: #028073;
      --bg-main: #F8FAFC;
      --surface: #FFFFFF;
      --dark-section: #0B132B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 4px rgba(15, 82, 186, 0.04);
      --shadow-card: 0 4px 6px -1px rgba(15, 82, 186, 0.04), 0 10px 15px -3px rgba(15, 82, 186, 0.08);
      --shadow-hover: 0 14px 24px -5px rgba(15, 82, 186, 0.16);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      --container-max: 1240px;
    }

    *, *::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: 1.65;
      -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(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* Top Bar */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.84rem;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-contact-list {
      display: flex;
      gap: 20px;
      list-style: none;
    }
    .top-contact-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .top-contact-item svg {
      width: 14px;
      height: 14px;
      fill: var(--primary);
    }

    /* Main Navigation */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      height: 74px;
    }
    .nav-container {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.35rem;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-weight: 500;
      color: var(--text-body);
      font-size: 0.98rem;
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link:focus {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--primary);
      color: #fff !important;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.92rem;
      transition: var(--transition);
      box-shadow: 0 4px 10px rgba(15, 82, 186, 0.2);
    }
    .nav-cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 14px rgba(15, 82, 186, 0.3);
    }

    /* Section Base */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--surface);
    }
    .section-header {
      max-width: 780px;
      margin: 0 auto 54px;
      text-align: center;
    }
    .section-badge {
      display: inline-block;
      padding: 5px 14px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Hero Section (Blueprint: 会员俱乐部黑金质感 + 等级徽章 + 开通入口) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #1a2744 0%, #0d1527 60%, #080d19 100%), url('/assets/images/bf3e39da60ee6a03.webp') center/cover no-repeat;
      color: #FFFFFF;
      padding: 110px 0 90px;
      position: relative;
      overflow: hidden;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11, 19, 43, 0.94) 0%, rgba(15, 23, 42, 0.88) 100%);
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-gold-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: linear-gradient(90deg, #FDE68A 0%, #D97706 100%);
      color: #451A03;
      font-weight: 800;
      font-size: 0.85rem;
      border-radius: 999px;
      margin-bottom: 24px;
      box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: center;
    }
    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.22;
      margin-bottom: 22px;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    .hero-subtitle {
      font-size: 1.12rem;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 34px;
      max-width: 640px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }
    .btn-gold {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
      color: #FFFFFF;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      box-shadow: 0 10px 20px rgba(217, 119, 6, 0.35);
      border: 1px solid rgba(253, 230, 138, 0.4);
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #D97706 0%, #B45309 100%);
      transform: translateY(-2px);
      box-shadow: 0 14px 25px rgba(217, 119, 6, 0.5);
    }
    .btn-outline-light {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      font-weight: 600;
      padding: 14px 30px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(8px);
    }
    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.16);
      transform: translateY(-2px);
    }

    /* Hero Right Stage Card */
    .vip-tier-card {
      background: linear-gradient(145deg, rgba(30, 41, 59, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
      border: 1px solid rgba(245, 158, 11, 0.3);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
      position: relative;
    }
    .vip-tier-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 20px;
      margin-bottom: 20px;
    }
    .vip-tier-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: #FDE68A;
    }
    .vip-badge-tag {
      background: rgba(245, 158, 11, 0.15);
      color: #F59E0B;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
      border: 1px solid rgba(245, 158, 11, 0.3);
    }
    .vip-specs-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 26px;
    }
    .vip-spec-item {
      display: flex;
      justify-content: space-between;
      font-size: 0.92rem;
      color: #E2E8F0;
    }
    .vip-spec-item span:first-child {
      color: #94A3B8;
    }
    .vip-spec-item span:last-child {
      font-weight: 700;
      color: #38BDF8;
    }
    .vip-card-cta {
      display: block;
      width: 100%;
      text-align: center;
      background: linear-gradient(90deg, #2563EB, #1D4ED8);
      color: #FFF;
      padding: 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.95rem;
    }
    .vip-card-cta:hover {
      background: linear-gradient(90deg, #1D4ED8, #1E40AF);
    }

    /* Metric Board */
    .metric-board {
      margin-top: 50px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: rgba(15, 23, 42, 0.65);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      backdrop-filter: blur(12px);
    }
    .metric-item {
      text-align: left;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      padding-right: 15px;
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-value {
      font-size: 2.1rem;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.86rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* Block 2: Service Matrix */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .matrix-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 34px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .matrix-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
      color: var(--primary);
    }
    .matrix-icon-box svg {
      width: 26px;
      height: 26px;
    }
    .matrix-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-card-text {
      font-size: 0.94rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* Block 3: Architecture */
    .arch-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .arch-image-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .arch-specs-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }
    .arch-spec-box {
      display: flex;
      gap: 16px;
      background: var(--surface);
      padding: 18px 22px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .arch-spec-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .arch-spec-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Block 4: Core Strengths (6 Cards) */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .strength-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .strength-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 82, 186, 0.4);
    }
    .strength-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .strength-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent);
    }
    .strength-text {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* Block 5: Deployment Editions */
    .editions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
      align-items: stretch;
    }
    .edition-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      transition: var(--transition);
      box-shadow: var(--shadow-card);
    }
    .edition-card.popular {
      border: 2px solid var(--primary);
      transform: scale(1.03);
      box-shadow: 0 16px 30px -5px rgba(15, 82, 186, 0.16);
      z-index: 2;
    }
    .popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #fff;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 999px;
      letter-spacing: 0.6px;
    }
    .edition-title {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .edition-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .edition-features {
      list-style: none;
      margin-bottom: 34px;
      flex-grow: 1;
    }
    .edition-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.94rem;
      color: var(--text-body);
      margin-bottom: 12px;
    }
    .edition-feature-item svg {
      width: 16px;
      height: 16px;
      fill: var(--accent);
      flex-shrink: 0;
    }
    .edition-btn {
      width: 100%;
      text-align: center;
      padding: 13px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.95rem;
      border: 1px solid var(--primary);
      color: var(--primary);
      background: transparent;
      transition: var(--transition);
    }
    .edition-card.popular .edition-btn {
      background: var(--primary);
      color: #FFF;
    }
    .edition-btn:hover {
      background: var(--primary-hover);
      color: #FFF;
    }

    /* Block 6: Dark Tech Concept */
    .dark-section {
      background-color: var(--dark-section);
      color: #FFFFFF;
    }
    .dark-section .section-title {
      color: #FFFFFF;
    }
    .dark-section .section-desc {
      color: #94A3B8;
    }
    .dark-concept-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-top: 40px;
    }
    .dark-concept-box {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 34px;
      transition: var(--transition);
    }
    .dark-concept-box:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: #38BDF8;
    }
    .dark-concept-box h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 14px;
    }
    .dark-concept-box p {
      font-size: 0.94rem;
      color: #94A3B8;
      line-height: 1.7;
    }

    /* Block 7: Benchmark Comparison */
    .benchmark-table-wrap {
      overflow-x: auto;
      background: var(--surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .benchmark-table th, .benchmark-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .benchmark-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-main);
      font-size: 1rem;
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .benchmark-table td:nth-child(2) {
      color: #DC2626;
      background: rgba(254, 242, 242, 0.4);
    }
    .benchmark-table td:nth-child(3) {
      color: var(--primary);
      font-weight: 600;
      background: rgba(235, 243, 254, 0.5);
    }

    /* Block 8: Milestones Timeline */
    .timeline {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding-left: 30px;
      border-left: 3px solid var(--border-color);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 40px;
    }
    .timeline-item:last-child {
      margin-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -38px;
      top: 4px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #FFF;
      box-shadow: 0 0 0 2px var(--primary);
    }
    .timeline-date {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .timeline-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .timeline-body {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* Block 9: Case Studies */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .case-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .case-image {
      height: 190px;
      width: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-industry {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .case-heading {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .case-summary {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .case-result {
      margin-top: auto;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
    }

    /* Block 10: Testimonials */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .testimonial-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-stars {
      display: flex;
      gap: 4px;
      margin-bottom: 16px;
      color: #F59E0B;
    }
    .testimonial-stars svg {
      width: 16px;
      height: 16px;
      fill: currentColor;
    }
    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 22px;
      font-style: italic;
    }
    .testimonial-author-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testimonial-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 1.1rem;
    }
    .testimonial-name {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .testimonial-role {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* Block 11: Insights */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .insight-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .insight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .insight-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .insight-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .insight-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
      font-weight: 600;
      font-size: 0.9rem;
    }

    /* Block 12: FAQ & Form */
    .faq-contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    details.faq-item {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    details.faq-item[open] {
      border-color: var(--primary);
      box-shadow: var(--shadow-card);
    }
    summary.faq-question {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    summary.faq-question::-webkit-details-marker {
      display: none;
    }
    summary.faq-question::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary);
      font-weight: 400;
      transition: var(--transition);
    }
    details[open] summary.faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      margin-top: 14px;
      font-size: 0.94rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
    }

    /* Form Card */
    .form-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 38px 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }
    .form-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .form-subtitle {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-input, .form-select {
      width: 100%;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      font-size: 0.95rem;
      color: var(--text-body);
      background-color: #F8FAFC;
      transition: var(--transition);
      outline: none;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      background-color: #FFF;
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }
    .form-submit-btn {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
      color: #FFF;
      font-weight: 700;
      font-size: 1rem;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 8px 16px rgba(15, 82, 186, 0.25);
    }
    .form-submit-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 20px rgba(15, 82, 186, 0.35);
    }
    .form-secure-badge {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 10px;
    }
    .form-secure-badge svg {
      width: 14px;
      height: 14px;
      fill: var(--accent);
    }

    /* Footer */
    .site-footer {
      background-color: #0B132B;
      color: #94A3B8;
      padding: 80px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.92rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #FFF;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      max-width: 320px;
    }
    .footer-col-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 20px;
    }
    .footer-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-nav-list a:hover {
      color: #FFF;
      padding-left: 4px;
    }
    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    /* Mobile Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .arch-container {
        grid-template-columns: 1fr;
      }
      .matrix-grid, .strengths-grid, .editions-grid, .dark-concept-grid, .cases-grid, .testimonials-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .edition-card.popular {
        transform: none;
      }
      .faq-contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 56px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .metric-board {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .metric-item {
        border-right: none;
      }
      .matrix-grid, .strengths-grid, .editions-grid, .dark-concept-grid, .cases-grid, .testimonials-grid, .insights-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }