/* roulang page: index */
:root {
      --bg-dark: #060b19;
      --bg-section: #081028;
      --bg-card: rgba(255, 255, 255, 0.04);
      --bg-card-hover: rgba(255, 255, 255, 0.08);
      --border-light: rgba(255, 255, 255, 0.1);
      --border-cyan: rgba(0, 240, 255, 0.3);
      --primary-blue: #0066ff;
      --primary-cyan: #00f0ff;
      --accent-purple: #7b2cbf;
      --accent-gold: #ffb703;
      --text-white: #ffffff;
      --text-gray: #94a3b8;
      --text-muted: #64748b;
      --radius-lg: 16px;
      --radius-sm: 8px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      overflow-x: hidden;
      background: radial-gradient(circle at 50% 0%, #101c42 0%, var(--bg-dark) 70%);
    }

    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 Utility Bar */
    .top-bar {
      background: rgba(4, 8, 19, 0.85);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 13px;
      color: var(--text-gray);
      padding: 8px 0;
      backdrop-filter: blur(10px);
    }

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

    .top-info span {
      margin-right: 20px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .top-info i {
      color: var(--primary-cyan);
    }

    /* Main Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 11, 25, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-light);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }

    .brand-logo {
      font-size: 24px;
      font-weight: 800;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 10px;
      background: linear-gradient(135deg, #ffffff 40%, var(--primary-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .brand-logo i {
      -webkit-text-fill-color: var(--primary-cyan);
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }

    .nav-link {
      font-size: 15px;
      color: var(--text-gray);
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }

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

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-cyan);
      transition: var(--transition);
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-cta-btn {
      padding: 10px 22px;
      background: linear-gradient(135deg, var(--primary-blue), var(--primary-cyan));
      color: #040813;
      font-weight: 700;
      font-size: 14px;
      border-radius: 30px;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
      color: #000;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-white);
      font-size: 24px;
      cursor: pointer;
    }

    /* Section Global Styles */
    section {
      padding: 90px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

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

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-cyan);
      background: rgba(0, 240, 255, 0.08);
      border: 1px solid rgba(0, 240, 255, 0.25);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 36px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-white);
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-gray);
      line-height: 1.7;
    }

    /* 1. HERO - Card Stack Blueprint */
    .hero-section {
      padding: 90px 0 110px 0;
      position: relative;
      background: url('/assets/images/41eb8d3534c732cb.webp') center/cover no-repeat;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(6,11,25,0.85) 0%, rgba(6,11,25,0.95) 100%);
    }

    .hero-inner {
      position: relative;
      z-index: 2;
    }

    .hero-text-block {
      text-align: center;
      max-width: 860px;
      margin: 0 auto 50px auto;
    }

    .hero-text-block h1 {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 20px;
      background: linear-gradient(180deg, #FFFFFF 0%, #B8D4FF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-text-block p {
      font-size: 17px;
      color: var(--text-gray);
      line-height: 1.8;
      margin-bottom: 30px;
    }

    .hero-stack-container {
      display: grid;
      grid-template-columns: 1fr 1.4fr 1fr;
      gap: 24px;
      align-items: center;
    }

    .stack-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: var(--transition);
    }

    .stack-card:hover {
      border-color: var(--border-cyan);
      transform: translateY(-4px);
    }

    .stack-card.main-stack {
      background: rgba(10, 24, 60, 0.7);
      border: 1px solid rgba(0, 240, 255, 0.35);
      box-shadow: 0 10px 30px rgba(0, 102, 255, 0.15);
      padding: 36px 32px;
      transform: scale(1.04);
    }

    .stack-card.main-stack:hover {
      transform: scale(1.04) translateY(-4px);
    }

    .stack-badge {
      color: var(--accent-gold);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .stack-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }

    .stack-desc {
      font-size: 14px;
      color: var(--text-gray);
      margin-bottom: 20px;
    }

    .stack-stat-row {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 16px;
    }

    .stack-stat-item {
      text-align: left;
    }

    .stack-stat-num {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary-cyan);
    }

    .stack-stat-lbl {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 2. Problem Statement (问题陈述) */
    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .problem-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      overflow: hidden;
      backdrop-filter: blur(12px);
    }

    .problem-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--accent-purple);
    }

    .problem-icon {
      font-size: 28px;
      color: #ff5c8a;
      margin-bottom: 18px;
    }

    .problem-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .problem-desc {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.7;
    }

    /* 3. Operational Showcase (操作演示 / 规划体系) */
    .showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .showcase-visual {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    }

    .step-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .step-item {
      display: flex;
      gap: 18px;
      background: var(--bg-card);
      padding: 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
    }

    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(0, 102, 255, 0.2);
      border: 1px solid var(--primary-blue);
      color: var(--primary-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .step-content h4 {
      font-size: 17px;
      margin-bottom: 6px;
    }

    .step-content p {
      font-size: 13.5px;
      color: var(--text-gray);
    }

    /* 4. Core Strengths (核心优势矩阵) */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .advantage-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      transition: var(--transition);
    }

    .advantage-card:hover {
      border-color: var(--border-cyan);
      transform: translateY(-5px);
      background: var(--bg-card-hover);
    }

    .advantage-icon {
      width: 56px;
      height: 56px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 240, 255, 0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--primary-cyan);
      margin-bottom: 20px;
      border: 1px solid rgba(0, 240, 255, 0.2);
    }

    .advantage-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .advantage-card p {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* 5. Programs / Service Matrix (热门项目) */
    .program-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .program-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      backdrop-filter: blur(12px);
      transition: var(--transition);
    }

    .program-card:hover {
      border-color: var(--border-cyan);
      box-shadow: 0 10px 30px rgba(0, 240, 255, 0.15);
    }

    .program-img {
      height: 200px;
      overflow: hidden;
    }

    .program-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .program-body {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .program-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 14px;
    }

    .program-tag-item {
      font-size: 12px;
      padding: 3px 10px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 4px;
      color: var(--primary-cyan);
      border: 1px solid rgba(0, 240, 255, 0.2);
    }

    .program-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .program-desc {
      font-size: 14px;
      color: var(--text-gray);
      margin-bottom: 24px;
      flex: 1;
    }

    .card-btn {
      padding: 10px 18px;
      border: 1px solid var(--primary-cyan);
      color: var(--primary-cyan);
      border-radius: 20px;
      text-align: center;
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      justify-content: center;
      align-items: center;
      gap: 6px;
    }

    .card-btn:hover {
      background: var(--primary-cyan);
      color: #040813;
    }

    /* 6. Comparison (结果对比与提升看板) */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .compare-box {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid var(--border-light);
    }

    .compare-box.traditional {
      background: rgba(255, 255, 255, 0.02);
      border-color: rgba(255, 255, 255, 0.08);
    }

    .compare-box.innovative {
      background: rgba(0, 102, 255, 0.08);
      border: 1px solid rgba(0, 240, 255, 0.4);
      box-shadow: 0 0 25px rgba(0, 102, 255, 0.15);
    }

    .compare-box h3 {
      font-size: 22px;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .compare-item {
      display: flex;
      gap: 12px;
      font-size: 14.5px;
      line-height: 1.6;
    }

    .compare-item i {
      margin-top: 4px;
    }

    .traditional .compare-item i {
      color: #ff5c8a;
    }

    .innovative .compare-item i {
      color: var(--primary-cyan);
    }

    /* 7. Dark Cases & Philosophy (深色案例与教育理念) */
    .dark-case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .philosophy-text h3 {
      font-size: 28px;
      margin-bottom: 20px;
      line-height: 1.4;
    }

    .philosophy-text p {
      font-size: 15px;
      color: var(--text-gray);
      margin-bottom: 20px;
    }

    .cases-stack {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .case-info h4 {
      font-size: 16px;
      color: var(--text-white);
      margin-bottom: 4px;
    }

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

    .case-badge {
      background: rgba(255, 183, 3, 0.15);
      color: var(--accent-gold);
      border: 1px solid rgba(255, 183, 3, 0.3);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
    }

    /* 8. Milestone Timeline (学员申请故事流/里程碑) */
    .timeline-wrapper {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
    }

    .timeline-wrapper::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 2px;
      background: linear-gradient(180deg, var(--primary-blue), var(--primary-cyan));
      transform: translateX(-50%);
    }

    .timeline-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 40px;
      position: relative;
    }

    .timeline-item:nth-child(even) {
      flex-direction: row-reverse;
    }

    .timeline-content {
      width: 44%;
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 24px;
      backdrop-filter: blur(10px);
    }

    .timeline-dot {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 20px;
      height: 20px;
      background: var(--bg-dark);
      border: 3px solid var(--primary-cyan);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--primary-cyan);
    }

    .timeline-stage {
      font-size: 12px;
      color: var(--primary-cyan);
      font-weight: 700;
      margin-bottom: 6px;
    }

    .timeline-title {
      font-size: 17px;
      margin-bottom: 8px;
    }

    .timeline-desc {
      font-size: 13.5px;
      color: var(--text-gray);
    }

    /* 9. Key Metrics (关键数据统计条) */
    .metrics-bar {
      background: linear-gradient(90deg, rgba(0, 102, 255, 0.15) 0%, rgba(0, 240, 255, 0.15) 100%);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 40px 20px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      text-align: center;
      gap: 20px;
      backdrop-filter: blur(16px);
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
    }

    .metric-number {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary-cyan);
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }

    .metric-title {
      font-size: 14px;
      color: var(--text-white);
      font-weight: 600;
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. Reviews & Endorsements (评价区) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      backdrop-filter: blur(12px);
    }

    .review-quote {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }

    .review-quote i {
      color: rgba(0, 240, 255, 0.3);
      font-size: 20px;
      margin-bottom: 8px;
      display: block;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 16px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
    }

    .reviewer-name {
      font-size: 15px;
      font-weight: 700;
    }

    .reviewer-tag {
      font-size: 12px;
      color: var(--accent-gold);
    }

    /* 11. News / Insights (资讯列表摘要) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .news-card:hover {
      border-color: var(--border-cyan);
      transform: translateY(-4px);
    }

    .news-thumb {
      height: 170px;
      overflow: hidden;
    }

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

    .news-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-heading {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-excerpt {
      font-size: 13.5px;
      color: var(--text-gray);
      margin-bottom: 16px;
      flex: 1;
    }

    .news-link {
      font-size: 13px;
      color: var(--primary-cyan);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. Assurance / Certifications (平台保障与权威认证) */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .assurance-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 28px 20px;
      text-align: center;
    }

    .assurance-card i {
      font-size: 32px;
      color: var(--primary-cyan);
      margin-bottom: 16px;
    }

    .assurance-card h4 {
      font-size: 16px;
      margin-bottom: 8px;
    }

    .assurance-card p {
      font-size: 13px;
      color: var(--text-gray);
    }

    /* 13. FAQ Accordion (快速解答与 FAQ) */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--border-cyan);
      background: rgba(255, 255, 255, 0.06);
    }

    .faq-question {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 600;
      user-select: none;
    }

    .faq-question i {
      transition: transform 0.3s ease;
      color: var(--primary-cyan);
    }

    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      padding: 0 24px 20px 24px;
      max-height: 300px;
    }

    /* 14. Conversion / Assessment Form (转化预约与评估表单) */
    .form-section {
      background: url('/assets/images/bdd62070bc3a3d38.webp') center/cover no-repeat;
      position: relative;
    }

    .form-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(6,11,25,0.9) 0%, rgba(6,11,25,0.96) 100%);
    }

    .form-wrapper {
      position: relative;
      z-index: 2;
      max-width: 760px;
      margin: 0 auto;
      background: rgba(10, 20, 48, 0.75);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 44px;
      backdrop-filter: blur(20px);
      box-shadow: 0 0 40px rgba(0, 102, 255, 0.2);
    }

    .form-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .form-header h3 {
      font-size: 26px;
      margin-bottom: 10px;
    }

    .form-header p {
      font-size: 14px;
      color: var(--text-gray);
    }

    .consult-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      font-size: 13px;
      color: var(--text-gray);
      font-weight: 500;
    }

    .form-input, .form-select {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: var(--text-white);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-select option {
      background: var(--bg-dark);
      color: var(--text-white);
    }

    .form-input:focus, .form-select:focus {
      border-color: var(--primary-cyan);
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
    }

    .submit-btn {
      grid-column: span 2;
      padding: 14px;
      background: linear-gradient(135deg, var(--primary-blue), var(--primary-cyan));
      border: none;
      border-radius: 30px;
      color: #040813;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
      margin-top: 10px;
      transition: var(--transition);
    }

    .submit-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 35px rgba(0, 240, 255, 0.6);
      color: #000;
    }

    /* Footer */
    .site-footer {
      background: #040711;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 70px 0 30px 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-col h4 {
      font-size: 16px;
      margin-bottom: 20px;
      color: var(--text-white);
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--primary-cyan);
    }

    .footer-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-top: 14px;
    }

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

    .footer-links a {
      font-size: 13.5px;
      color: var(--text-gray);
    }

    .footer-links a:hover {
      color: var(--primary-cyan);
      padding-left: 4px;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 13.5px;
      color: var(--text-gray);
    }

    .contact-item i {
      color: var(--primary-cyan);
      margin-top: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-stack-container {
        grid-template-columns: 1fr;
      }
      .stack-card.main-stack {
        transform: none;
      }
      .stack-card.main-stack:hover {
        transform: translateY(-4px);
      }
      .problem-grid, .advantage-grid, .program-grid, .review-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .assurance-grid, .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 56px 0;
      }
      .section-title {
        font-size: 28px;
      }
      .hero-text-block h1 {
        font-size: 32px;
      }
      .top-bar {
        display: none;
      }
      .nav-menu {
        position: fixed;
        top: 76px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 76px);
        background: rgba(6, 11, 25, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 40px 24px;
        gap: 20px;
        transition: 0.3s ease;
      }
      .nav-menu.open {
        left: 0;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-cta-btn {
        display: none;
      }
      .problem-grid, .advantage-grid, .program-grid, .review-grid, .news-grid,
      .compare-container, .dark-case-grid, .showcase-grid, .assurance-grid, .metrics-bar {
        grid-template-columns: 1fr;
      }
      .timeline-wrapper::before {
        left: 20px;
      }
      .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 45px;
      }
      .timeline-content {
        width: 100%;
      }
      .timeline-dot {
        left: 20px;
        top: 24px;
        transform: none;
      }
      .consult-form {
        grid-template-columns: 1fr;
      }
      .form-group.full-width, .submit-btn {
        grid-column: span 1;
      }
      .form-wrapper {
        padding: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }