/* 响应式样式 - EXCESSIC官网 */

/* ==================== 移动端 (< 768px) ==================== */
@media (max-width: 767px) {
  /* 基础调整 */
  .container {
    padding: 0 var(--spacing-sm);
  }

  html {
    font-size: 14px;
  }

  /* 标题调整 */
  h1, .hero h1 {
    font-size: 32px !important;
  }

  h2, .section-title {
    font-size: 24px !important;
  }

  h3 {
    font-size: 20px !important;
  }

  /* Hero区域 */
  .hero {
    min-height: 500px;
    padding: calc(var(--header-height) + 20px) var(--spacing-sm) var(--spacing-lg);
  }

  .hero-content {
    padding: 0 var(--spacing-xs);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  /* Section区块 */
  .section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .section-lg {
    padding: var(--spacing-xl) var(--spacing-sm);
  }

  .section-header {
    margin-bottom: var(--spacing-md);
  }

  /* 导航栏 */
  .header-inner {
    padding: 0 var(--spacing-sm);
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: var(--spacing-lg);
  }

  .nav.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .nav-link {
    font-size: var(--font-size-lg);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  /* Grid布局 */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  /* 分割布局 */
  .split-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .split-content {
    padding-right: 0;
  }

  .split-image {
    padding-left: 0;
    order: -1;
  }

  /* 品牌墙 */
  .brand-wall {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
  }

  .brand-logo {
    padding: var(--spacing-sm);
    min-height: 60px;
    font-size: 13px;
  }

  /* Footer */
  .footer {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
  }

  /* 卡片 */
  .card {
    padding: var(--spacing-md);
  }

  .card-icon {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-lg);
  }

  /* 页面Hero */
  .page-hero {
    min-height: 300px;
    padding: calc(var(--header-height) + 20px) var(--spacing-sm) var(--spacing-md);
  }

  /* 隐藏在移动端 */
  .hide-mobile {
    display: none !important;
  }

  /* 显示在移动端 */
  .show-mobile {
    display: block !important;
  }
}

/* ==================== 平板端 (768px - 1023px) ==================== */
@media (min-width: 768px) and (max-width: 1023px) {
  h1, .hero h1 {
    font-size: 48px !important;
  }

  h2, .section-title {
    font-size: 36px !important;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

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

  .hero {
    min-height: 600px;
  }

  .stat-number {
    font-size: 36px !important;
  }
}

/* ==================== 大屏幕 (1440px+) ==================== */
@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }

  h1, .hero h1 {
    font-size: 72px !important;
  }

  h2, .section-title {
    font-size: 56px !important;
  }
}

/* ==================== 触摸设备优化 ==================== */
@media (hover: none) and (pointer: coarse) {
  /* 增大按钮点击区域 */
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .nav-link {
    padding: var(--spacing-sm) 0;
  }

  .footer-link {
    padding: var(--spacing-sm) 0;
  }

  /* 添加点击效果 */
  .btn:active {
    transform: scale(0.98);
  }

  .card:active {
    transform: scale(0.98);
  }
}

/* ==================== 减少动画模式 ==================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .scroll-animate {
    opacity: 1;
    transform: none;
  }

  .particle {
    display: none;
  }

  .fade-in {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* ==================== 打印样式 ==================== */
@media print {
  .header,
  .nav-toggle,
  .particles-bg,
  .btn {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .hero,
  .section {
    padding: 20px;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  .card {
    border: 1px solid #ddd;
    background: white;
  }
}