/* ========== Responsive CSS ========== */

/* 平板端 */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }

  .section-title {
    font-size: 1.75rem;
    margin-bottom: 48px;
  }

  .about-grid {
    grid-template-columns: 250px 1fr;
    gap: 40px;
  }

  .about-image {
    width: 240px;
    height: 240px;
  }

  .about-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
  }

  .timeline-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .modal-body {
    grid-template-columns: 1fr;
  }

  .modal-info {
    padding: 24px 32px 32px;
  }

  .modal-gallery {
    padding: 24px 24px 0;
  }
}

/* 移动端 */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  /* 导航栏 */
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-elevated);
    flex-direction: column;
    padding: 100px 40px 40px;
    gap: 4px;
    transition: right 0.3s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    z-index: 1000;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-link.active {
    background: rgba(102, 126, 234, 0.1);
  }

  /* Hero */
  .hero {
    padding: 0 16px;
  }

  .hero-greeting {
    font-size: 0.85rem;
  }

  .hero-name {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .hero-title-wrapper {
    font-size: 1.1rem;
    flex-direction: column;
    gap: 4px;
  }

  .hero-description {
    font-size: 0.95rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 240px;
    justify-content: center;
  }

  .scroll-indicator {
    bottom: 24px;
  }

  /* Section */
  .container {
    padding: 0 16px;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 36px;
  }

  /* 关于我 */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-image-wrapper {
    order: -1;
  }

  .about-image {
    width: 200px;
    height: 200px;
  }

  .about-stats {
    justify-content: space-between;
    gap: 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }

  .about-tags {
    justify-content: center;
  }

  /* 技能 */
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .skill-card {
    padding: 16px 12px;
  }

  .skill-icon {
    width: 36px;
    height: 36px;
  }

  .skill-name {
    font-size: 0.8rem;
  }

  /* 作品集 */
  .portfolio-filters {
    gap: 8px;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 0.8rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card-image {
    height: 180px;
  }

  /* 时间线 */
  .timeline-container {
    gap: 36px;
  }

  .timeline-heading {
    font-size: 1.1rem;
    margin-bottom: 24px;
  }

  .timeline-content {
    padding: 20px;
  }

  .timeline-title {
    font-size: 1rem;
  }

  /* 联系 */
  .contact-subtitle {
    font-size: 1.3rem;
  }

  .form-group input,
  .form-group textarea {
    padding: 12px 16px;
  }

  .btn-submit {
    width: 100%;
    justify-content: center;
  }

  /* 页脚 */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav {
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
  }

  /* 模态框 */
  .modal-content {
    max-height: 95vh;
    border-radius: var(--radius-lg);
  }

  .modal-close {
    top: 12px;
    right: 12px;
  }

  .modal-title {
    font-size: 1.4rem;
  }

  .modal-links {
    flex-direction: column;
  }

  .modal-links .btn {
    width: 100%;
    justify-content: center;
  }
}

/* 小屏手机 */
@media (max-width: 375px) {
  .hero-name {
    font-size: 2.2rem;
  }

  .hero-title-wrapper {
    font-size: 1rem;
  }

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

  .about-stats {
    flex-wrap: wrap;
    justify-content: center;
  }

  .stat-item {
    min-width: 80px;
  }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .navbar {
    border-bottom: 0.5px solid var(--border);
  }
}

/* 打印样式 */
@media print {
  .navbar,
  .hero,
  .particles-canvas,
  .scroll-indicator,
  .modal-overlay {
    display: none !important;
  }

  body {
    background: #fff;
    color: #333;
  }

  .section {
    padding: 40px 0;
    page-break-inside: avoid;
  }

  .section-title {
    color: #333;
  }

  .portfolio-card {
    break-inside: avoid;
  }
}