@media (max-width: 980px) {
  
  .hero h1 {
    font-size: var(--text-4xl);
  }

  .hero .subtitle {
    font-size: var(--text-lg);
  }

  .hero-stats {
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
  }

  .hero-stat {
    min-width: 130px;
  }

  .hero-stat .num {
    font-size: var(--text-xl);
  }

  .hero-stat-icon {
    width: 36px;
    height: 36px;
    font-size: var(--text-base);
  }

  
  .hero-meta {
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .hero-meta-item {
    min-width: 140px;
  }

  .hero-meta-divider {
    height: 24px;
  }

  
  .section {
    padding: var(--space-14) 0;
  }

  .section-title {
    font-size: var(--text-2xl);
  }

  
  .overview-grid {
    grid-template-columns: 1fr;
  }

  
  .competency-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  
  .knowledge-wrapper {
    grid-template-columns: 1fr;
  }

  .knowledge-tabs {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .knowledge-tabs::-webkit-scrollbar {
    display: none;
  }

  .knowledge-tab {
    flex-shrink: 0;
  }

  
  .skills-timeline::before {
    left: 24px;
  }

  .skill-level,
  .skill-level:nth-child(odd) {
    flex-direction: row;
    padding-left: 64px;
  }

  .skill-content,
  .skill-level:nth-child(odd) .skill-content {
    width: 100%;
    text-align: left;
  }

  .skill-dot,
  .skill-level:nth-child(odd) .skill-dot {
    left: 24px;
    transform: translateX(0);
  }

  .skill-level:nth-child(odd) .skill-content h3 {
    justify-content: flex-start;
  }

  .skill-level:nth-child(odd) .skill-content ul li {
    justify-content: flex-start;
  }

  
  .career-paths {
    grid-template-columns: repeat(2, 1fr);
  }

  .career-map {
    grid-template-columns: 1fr;
  }

  
  .tasks-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .task-flow {
    padding: var(--space-4);
  }

  .task-flow-chain i {
    display: none;
  }

  .task-flow-chain {
    gap: var(--space-2);
  }

  
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  
  .advantages-wrapper {
    grid-template-columns: 1fr;
  }

  
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: var(--space-4) var(--space-6);
    gap: var(--space-1);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-sticky);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    border-radius: var(--radius-sm);
  }

  .nav-overlay {
    display: block;
  }

  
  .hero-wave-bottom {
    height: 50px;
  }

  .section-divider,
  .section-divider--lg {
    height: 50px;
  }

  .section-divider--sm {
    height: 32px;
  }

  .section-divider-gradient,
  .section-divider-gradient--to-white,
  .section-divider-gradient--cert,
  .section-divider-gradient--to-cert,
  .section-divider-gradient--experts,
  .section-divider-gradient--to-experts {
    height: 32px;
  }

  .section-divider-dots {
    height: 28px;
    gap: 10px;
    margin-top: -6px;
    margin-bottom: -6px;
  }

  .divider-dot {
    width: 5px;
    height: 5px;
  }

  .footer-wave-top {
    height: 32px;
  }
}


@media (max-width: 640px) {
  
  .hero {
    padding: var(--space-16) 0 var(--space-16);
  }

  .hero h1 {
    font-size: var(--text-3xl);
  }

  .hero .subtitle {
    font-size: var(--text-base);
  }

  .hero-stats {
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .hero-stat {
    min-width: 100px;
    gap: var(--space-2);
  }

  .hero-stat-icon {
    width: 32px;
    height: 32px;
    font-size: var(--text-sm);
  }

  .hero-stat .num {
    font-size: var(--text-lg);
  }

  .hero-stat .label {
    font-size: 11px;
  }

  .hero-stat-divider {
    height: 28px;
  }

  
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
  }

  .hero-meta-item {
    width: 100%;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
  }

  .hero-meta-divider {
    display: none;
  }

  .back-to-top {
    bottom: var(--space-5);
    right: var(--space-5);
    width: 42px;
    height: 42px;
  }

  .float-qrcode {
    bottom: calc(var(--space-5) + 42px + 12px);
    right: var(--space-5);
    padding: 8px 16px 8px 12px;
    font-size: var(--text-xs);
  }

  .float-qrcode i {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  
  .section {
    padding: var(--space-10) 0;
  }

  .section-header {
    margin-bottom: var(--space-10);
  }

  .section-title {
    font-size: var(--text-xl);
  }

  .section-desc {
    font-size: var(--text-sm);
  }

  
  .competency-cards {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  
  .career-paths {
    grid-template-columns: 1fr;
  }

  .career-map {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .career-map-block {
    padding: var(--space-5);
  }

  .progression-rung {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .rung-role {
    text-align: left;
  }

  
  .tasks-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .task-flow {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  
  .sticky-nav .container {
    height: 56px;
  }

  .nav-logo {
    font-size: var(--text-base);
  }

  .nav-logo i {
    font-size: 20px;
  }

  
  .skills-timeline::before {
    left: 20px;
  }

  .skill-level,
  .skill-level:nth-child(odd) {
    padding-left: 52px;
  }

  .skill-dot,
  .skill-level:nth-child(odd) .skill-dot {
    width: 40px;
    height: 40px;
    font-size: var(--text-xs);
    left: 20px;
  }

  .skill-content {
    padding: var(--space-4);
  }

  
  .hero-wave-bottom {
    height: 36px;
  }

  .section-divider,
  .section-divider--lg {
    height: 36px;
  }

  .section-divider--sm {
    height: 24px;
  }

  .section-divider-gradient,
  .section-divider-gradient--to-white,
  .section-divider-gradient--cert,
  .section-divider-gradient--to-cert,
  .section-divider-gradient--experts,
  .section-divider-gradient--to-experts {
    height: 24px;
  }

  .section-divider-dots {
    height: 24px;
    gap: 8px;
    margin-top: -4px;
    margin-bottom: -4px;
  }

  .divider-dot {
    width: 4px;
    height: 4px;
  }

  .footer-wave-top {
    height: 24px;
  }
}


@media (max-width: 380px) {
  .container {
    padding: 0 var(--space-4);
  }

  .hero h1 {
    font-size: 26px;
  }

  .section-title {
    font-size: 20px;
  }

  .tasks-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .task-flow {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}


@media print {
  
  .sticky-nav,
  .hero-actions,
  .knowledge-tabs,
  .back-to-top,
  .float-qrcode,
  .scroll-progress {
    display: none !important;
  }

  
  .hero-wave-bottom,
  .section-divider,
  .section-divider-dots,
  .section-divider-diamond,
  .section-divider-gradient,
  .section-divider-gradient--to-white,
  .section-divider-gradient--cert,
  .section-divider-gradient--to-cert,
  .section-divider-gradient--experts,
  .section-divider-gradient--to-experts,
  .footer-wave-top {
    display: none !important;
  }

  
  .hero {
    padding: var(--space-10) 0;
    background: #fff !important;
    color: var(--text-dark) !important;
    border-bottom: 2px solid var(--primary);
  }

  .hero::before,
  .hero::after {
    display: none;
  }

  .hero h1,
  .hero .subtitle,
  .hero .tagline,
  .hero-stat .num,
  .hero-stat .label {
    color: var(--text-dark) !important;
  }

  .hero-badge {
    background-color: var(--primary-50) !important;
    color: var(--primary) !important;
    border: 1px solid var(--primary-100);
  }

  .hero-stats {
    background: var(--bg-light) !important;
    border: 1px solid var(--border);
    box-shadow: none !important;
  }

  .hero-stat-icon,
  .hero-stat-divider {
    display: none;
  }

  .hero-stat {
    text-align: center;
  }

  
  .section {
    padding: var(--space-8) 0;
    page-break-inside: avoid;
    background: #fff !important;
  }

  .section:nth-child(even) {
    background: #fff !important;
  }

  .section-tinted {
    background: #fff !important;
  }

  
  .career-section {
    background: #fff !important;
    color: var(--text-dark) !important;
  }

  .career-section .section-title,
  .career-section .section-desc {
    color: var(--text-dark) !important;
  }

  .career-section .section-tag {
    background-color: var(--primary-50) !important;
    color: var(--primary) !important;
  }

  .career-path {
    background: var(--bg-light) !important;
    color: var(--text-dark) !important;
    border: 1px solid var(--border) !important;
  }

  .career-path h3 {
    color: var(--text-dark) !important;
  }

  .career-path p {
    color: var(--text-muted) !important;
  }

  .career-step {
    background: var(--bg-gray) !important;
    color: var(--text-main) !important;
  }

  .career-map-block {
    background: var(--bg-light) !important;
    border: 1px solid var(--border) !important;
    break-inside: avoid;
  }

  .progression-rung {
    background: var(--bg-gray) !important;
  }

  .transition-card {
    background: var(--bg-gray) !important;
    break-inside: avoid;
  }

  .task-flow {
    background: var(--bg-gray) !important;
    break-inside: avoid;
  }

  .task-flow-node {
    background: #fff !important;
  }

  
  .cert-section {
    background: #fff !important;
  }

  
  .footer {
    background: var(--bg-light) !important;
    color: var(--text-muted) !important;
  }

  .footer-brand h3,
  .footer-col h4 {
    color: var(--text-dark) !important;
  }

  .footer-col ul li a {
    color: var(--text-muted) !important;
  }

  
  .advantage-highlight {
    background: var(--primary-50) !important;
    color: var(--text-dark) !important;
    border: 1px solid var(--primary-100);
  }

  .advantage-highlight h3,
  .highlight-stat .num {
    color: var(--text-dark) !important;
  }

  .highlight-stat {
    background: rgba(255, 255, 255, 0.8) !important;
  }

  
  .card,
  .overview-card,
  .competency-card,
  .task-card,
  .industry-card,
  .cert-card,
  .skill-content,
  .advantage-item {
    box-shadow: none !important;
    border: 1px solid var(--border) !important;
  }

  
  * {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  
  .knowledge-panel {
    display: block !important;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border);
  }

  .knowledge-panel:last-child {
    border-bottom: none;
  }

  .knowledge-content {
    border: none;
    padding: 0;
  }
}