/* roulang page: index */
:root {
      --primary: #FF4500;
      --primary-hover: #E03D00;
      --secondary: #10B981;
      --dark: #0B0F19;
      --dark-card: #161F30;
      --navy: #0F172A;
      --text: #1E293B;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
      --border: #E2E8F0;
      --white: #FFFFFF;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --transition: all 0.28s ease-in-out;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background-color: var(--white);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input, select {
      font-family: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部服务栏 */
    .topbar {
      background-color: var(--dark);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-info span {
      margin-right: 20px;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 24px;
      font-weight: 800;
      color: var(--navy);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      background: var(--primary);
      color: var(--white);
      font-size: 11px;
      font-weight: 700;
      padding: 2px 7px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-weight: 600;
      font-size: 15px;
      color: var(--navy);
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #FF2200 100%);
      color: var(--white);
      box-shadow: 0 4px 16px rgba(255, 69, 0, 0.35);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(255, 69, 0, 0.45);
      transform: translateY(-2px);
    }
    .btn-outline {
      border-color: rgba(255, 255, 255, 0.6);
      color: var(--white);
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(4px);
    }
    .btn-outline:hover {
      background: var(--white);
      color: var(--navy);
    }
    .btn-dark {
      background: var(--navy);
      color: var(--white);
    }
    .btn-dark:hover {
      background: #1E293B;
      transform: translateY(-2px);
    }

    /* 通用板块规范 */
    section {
      padding: 86px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--white);
    }
    .section-gray {
      background-color: var(--bg-light);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .section-dark {
      background-color: var(--dark);
      color: #E2E8F0;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 12px;
      background: rgba(255, 69, 0, 0.08);
      padding: 4px 12px;
      border-radius: 30px;
    }
    .section-tag.light {
      background: rgba(16, 185, 129, 0.15);
      color: var(--secondary);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--navy);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: var(--white);
    }
    .section-intro {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-intro {
      color: #94A3B8;
    }

    /* 板块 1: Hero Banner (品牌旗舰店版式) */
    .hero-banner {
      position: relative;
      min-height: 640px;
      background: linear-gradient(rgba(11, 15, 25, 0.75), rgba(11, 15, 25, 0.88)), url('/assets/images/56b954bbbe71a1e1.webp') center/cover no-repeat;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 80px 0 110px;
      color: var(--white);
    }
    .hero-content {
      max-width: 860px;
    }
    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 40px;
      padding: 6px 18px;
      margin-bottom: 24px;
    }
    .hero-badge-tag {
      background: var(--primary);
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 20px;
      font-weight: 800;
    }
    .hero-badge-text {
      font-size: 14px;
      color: #F1F5F9;
    }
    .hero-title {
      font-size: 48px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-desc {
      font-size: 17px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    /* 旗舰店系列导航条叠加 */
    .hero-dock-bar {
      position: absolute;
      bottom: -32px;
      left: 0;
      width: 100%;
      z-index: 10;
    }
    .hero-dock-grid {
      background: var(--white);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      padding: 18px 24px;
    }
    .dock-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 10px 18px;
      border-right: 1px solid var(--border);
    }
    .dock-item:last-child {
      border-right: none;
    }
    .dock-icon {
      width: 44px;
      height: 44px;
      background: rgba(255, 69, 0, 0.08);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      font-weight: bold;
    }
    .dock-text h4 {
      font-size: 15px;
      color: var(--navy);
      font-weight: 700;
      margin-bottom: 2px;
    }
    .dock-text p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 2: 痛点与现状剖析 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }
    .pain-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: #EF4444;
    }
    .pain-icon {
      font-size: 26px;
      margin-bottom: 16px;
      display: inline-block;
    }
    .pain-card h3 {
      font-size: 19px;
      color: var(--navy);
      margin-bottom: 12px;
      font-weight: 700;
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .pain-solution {
      font-size: 13px;
      background: rgba(16, 185, 129, 0.08);
      color: #065F46;
      padding: 8px 12px;
      border-radius: 6px;
      font-weight: 600;
    }

    /* 板块 3: 解决方案与体系 */
    .solution-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .solution-image {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .solution-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.9);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      color: var(--white);
      font-size: 13px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .solution-badge strong {
      color: var(--secondary);
      display: block;
      margin-bottom: 4px;
      font-size: 14px;
    }
    .solution-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .solution-item {
      display: flex;
      gap: 14px;
    }
    .solution-bullet {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(255, 69, 0, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 800;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .solution-item h4 {
      font-size: 16px;
      color: var(--navy);
      margin-bottom: 4px;
    }
    .solution-item p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 板块 4: 办学优势矩阵 (3列2行网格) */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .advantage-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .advantage-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 69, 0, 0.3);
    }
    .advantage-num {
      font-size: 28px;
      font-weight: 900;
      color: rgba(15, 23, 42, 0.15);
      margin-bottom: 12px;
      line-height: 1;
    }
    .advantage-card h3 {
      font-size: 18px;
      color: var(--navy);
      margin-bottom: 10px;
    }
    .advantage-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 5: 课程大卡片 */
    .course-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .course-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .course-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .course-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .course-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .course-card:hover .course-thumb img {
      transform: scale(1.05);
    }
    .course-tag-float {
      position: absolute;
      top: 14px;
      left: 14px;
      background: var(--primary);
      color: var(--white);
      font-size: 12px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
    }
    .course-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .course-body h3 {
      font-size: 20px;
      color: var(--navy);
      margin-bottom: 10px;
    }
    .course-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .course-meta {
      display: flex;
      justify-content: space-between;
      border-top: 1px dashed var(--border);
      padding-top: 16px;
      margin-top: auto;
      font-size: 13px;
      color: var(--navy);
      font-weight: 600;
    }
    .course-footer {
      padding: 16px 24px 24px;
    }

    /* 板块 6: 教学四步法 (横向步骤流) */
    .step-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: var(--white);
      padding: 28px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      position: relative;
    }
    .step-badge {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: var(--white);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-size: 16px;
    }
    .step-card h3 {
      font-size: 17px;
      color: var(--navy);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 7: 深色理念与实战 */
    .dark-showcase {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
    }
    .quote-box {
      border-left: 3px solid var(--secondary);
      padding-left: 20px;
      margin: 24px 0;
      font-style: italic;
      color: #CBD5E1;
      font-size: 15px;
    }
    .dark-card-box {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .dark-list li {
      margin-bottom: 16px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
    }
    .dark-dot {
      color: var(--secondary);
      font-weight: 800;
    }

    /* 板块 8: 蜕变实录案例 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .case-student {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .case-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--navy);
    }
    .case-student h4 {
      font-size: 16px;
      color: var(--navy);
    }
    .case-student span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .case-metrics {
      background: var(--bg-light);
      padding: 12px 16px;
      border-radius: 8px;
      margin-bottom: 14px;
    }
    .metric-row {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 4px;
    }
    .metric-row:last-child {
      margin-bottom: 0;
    }
    .metric-val {
      font-weight: 700;
      color: var(--primary);
    }
    .case-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 9: 办学成果数据条 (满幅深底) */
    .stats-bar {
      background: linear-gradient(135deg, #0B0F19 0%, #1E293B 100%);
      padding: 56px 0;
      color: var(--white);
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stats-item h2 {
      font-size: 44px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
    }
    .stats-item p {
      font-size: 15px;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 板块 10: 家长评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 12px;
    }
    .testimonial-card p {
      font-size: 14px;
      color: var(--text);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .parent-info {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border);
      padding-top: 12px;
      font-size: 13px;
    }
    .parent-name {
      font-weight: 700;
      color: var(--navy);
    }
    .parent-badge {
      color: var(--primary);
      font-size: 12px;
    }

    /* 板块 11: 体育培训内嵌资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }.news-body h3 {
      font-size: 17px;
      color: var(--navy);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-top: auto;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 12: FAQ 手风琴 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    details.faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    details.faq-item[open] {
      border-color: rgba(255, 69, 0, 0.4);
      box-shadow: var(--shadow-md);
    }
    summary.faq-question {
      font-size: 16px;
      font-weight: 700;
      color: var(--navy);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    summary.faq-question::-webkit-details-marker {
      display: none;
    }
    summary.faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.2s ease;
    }
    details[open] summary.faq-question::after {
      content: '−';
    }
    .faq-answer {
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid var(--border);
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 13: 综合 CTA 转化区 */
    .cta-wrapper {
      background: linear-gradient(135deg, #0B0F19 0%, #1E293B 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: var(--white);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-text p {
      font-size: 15px;
      color: #CBD5E1;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .cta-perks {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-perk-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #94A3B8;
    }
    .cta-perk-icon {
      color: var(--secondary);
      font-weight: bold;
    }
    .cta-form {
      background: var(--white);
      padding: 32px;
      border-radius: var(--radius-md);
      color: var(--text);
      box-shadow: var(--shadow-lg);
    }
    .form-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 20px;
      text-align: center;
    }
    .form-group {
      margin-bottom: 14px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 1px solid var(--border);
      border-radius: 6px;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.15);
    }
    .btn-submit {
      width: 100%;
      padding: 14px;
      font-size: 16px;
      margin-top: 8px;
    }

    /* 统一页脚 */
    .site-footer {
      background: #070A10;
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 20px;
      font-size: 13px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 18px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .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;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 移动端菜单控制 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--navy);
      cursor: pointer;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-dock-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .dock-item:nth-child(2) {
        border-right: none;
      }
      .advantage-grid, .course-grid, .case-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-flow {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 32px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        gap: 18px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-btn {
        display: none;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-dock-bar {
        position: static;
        margin-top: 36px;
      }
      .hero-dock-grid {
        grid-template-columns: 1fr;
      }
      .dock-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
      }
      .dock-item:last-child {
        border-bottom: none;
      }
      .pain-grid, .solution-block, .dark-showcase, .testimonial-grid, .faq-grid, .cta-wrapper {
        grid-template-columns: 1fr;
      }
      .advantage-grid, .course-grid, .case-grid, .news-grid, .step-flow {
        grid-template-columns: 1fr;
      }
      .cta-wrapper {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }