/* ========================================
   TMGM 响应式样式表
   ======================================== */

/* ===== 1199px 及以下 ===== */
@media (max-width: 1199px) {
  .container {
    max-width: 960px;
  }

  .hero-content h1 {
    font-size: 44px;
  }

  .hero-inner {
    gap: 40px;
  }

  .regulator-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .regulator-card {
    padding: 24px 16px;
  }

  .reg-logo {
    font-size: 24px;
  }

  .footer-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
  }
}

/* ===== 991px 及以下（平板横屏） ===== */
@media (max-width: 991px) {
  .container {
    max-width: 720px;
  }

  /* Navbar */
  .nav-menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-text-white);
    flex-direction: column;
    padding: 16px 20px;
    box-shadow: var(--shadow-md);
    gap: 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 15px;
  }

  .nav-menu a:last-child {
    border-bottom: none;
  }

  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 20px;
  }

  .hero-content h1 {
    font-size: 38px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero-stats {
    gap: 28px;
  }

  .stat .counter {
    font-size: 30px;
  }

  /* Regulators */
  .regulator-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Advantages */
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Accounts */
  .account-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  /* Platforms */
  .platform-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  /* Products */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* News */
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Contest */
  .contest-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .contest-features {
    display: inline-block;
    text-align: left;
  }

  .prize-cards {
    justify-content: center;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .section-title {
    font-size: 30px;
  }
}

/* ===== 767px 及以下（平板竖屏/大手机） ===== */
@media (max-width: 767px) {
  .container {
    max-width: 100%;
    padding: 0 16px;
  }

  /* Top Banner */
  .top-banner {
    font-size: 12px;
    padding: 6px 10px;
  }

  .top-banner p {
    line-height: 1.5;
  }

  /* Navbar */
  .nav-inner {
    height: 60px;
  }

  .logo-text {
    font-size: 22px;
  }

  .nav-menu {
    top: 60px;
  }

  /* Hero */
  .hero-content h1 {
    font-size: 32px;
    line-height: 1.25;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero-cta {
    gap: 12px;
  }

  .btn-lg {
    padding: 12px 28px;
    font-size: 15px;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat .counter {
    font-size: 26px;
  }

  .stat small {
    font-size: 12px;
  }

  .price-card {
    padding: 14px 16px;
  }

  .price-value {
    font-size: 17px;
  }

  /* Section */
  .section-title {
    font-size: 26px;
  }

  .section-desc {
    font-size: 15px;
    margin-bottom: 36px;
  }

  /* Regulators */
  .regulators,
  .advantages,
  .accounts,
  .platforms,
  .products,
  .news,
  .contest {
    padding: 56px 0;
  }

  .regulator-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .regulator-card {
    padding: 20px 14px;
  }

  .reg-logo {
    font-size: 22px;
  }

  .regulator-card h3 {
    font-size: 14px;
  }

  /* Advantages */
  .advantage-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .advantage-card {
    padding: 28px 22px;
  }

  .adv-icon {
    font-size: 38px;
  }

  /* Accounts */
  .account-card {
    padding: 28px 22px;
  }

  .acc-header h3 {
    font-size: 20px;
  }

  .acc-amount {
    font-size: 40px;
  }

  .compare-table-wrap {
    overflow-x: auto;
  }

  .compare-table {
    min-width: 500px;
  }

  .compare-table th,
  .compare-table td {
    padding: 10px 14px;
    font-size: 13px;
  }

  /* Platforms */
  .platform-card {
    padding: 28px 22px;
  }

  .plat-logo {
    font-size: 30px;
  }

  .plat-downloads {
    gap: 8px;
  }

  .dl-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  /* Products */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .product-card {
    padding: 24px 18px;
  }

  .prod-icon {
    font-size: 40px;
  }

  .product-card h3 {
    font-size: 17px;
  }

  /* News */
  .news-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .news-card .news-img {
    height: 140px;
  }

  /* Contest */
  .contest-content h2 {
    font-size: 28px;
  }

  .contest-content p {
    font-size: 15px;
  }

  .trophy {
    font-size: 72px;
  }

  .prize-card {
    padding: 14px 12px;
    min-width: 80px;
  }

  .prize-card strong {
    font-size: 15px;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
  }

  /* Floating Chat */
  .floating-chat {
    bottom: 16px;
    right: 16px;
  }

  .chat-btn {
    padding: 10px 16px;
    font-size: 13px;
  }

  .chat-text {
    display: none;
  }

  /* Back to Top */
  .back-to-top {
    bottom: 16px;
    left: 16px;
    width: 38px;
    height: 38px;
    font-size: 18px;
  }
}

/* ===== 480px 及以下（小手机） ===== */
@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 28px;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

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

  .hero-stats {
    gap: 16px;
  }

  .stat .counter {
    font-size: 22px;
  }

  .section-title {
    font-size: 24px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-col h4 {
    font-size: 14px;
  }

  .footer-col a {
    font-size: 12px;
  }

  .prize-cards {
    flex-direction: column;
    align-items: center;
  }

  .prize-card {
    width: 160px;
  }

  .top-banner p {
    font-size: 11px;
  }

  .nav-toggle span {
    width: 20px;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .navbar,
  .top-banner,
  .floating-chat,
  .back-to-top {
    display: none !important;
  }

  .hero {
    background: none !important;
    color: #000 !important;
    min-height: auto !important;
    padding: 20px 0 !important;
  }

  .hero-content h1,
  .hero-sub,
  .stat .counter {
    color: #000 !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .container {
    max-width: 100% !important;
  }
}

/* ===== 暗色模式支持 ===== */
@media (prefers-color-scheme: dark) {
  /* 保持品牌色为主，暗色模式仅微调 */
}

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

  html {
    scroll-behavior: auto;
  }
}

/* ===== 高对比度模式 ===== */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #001a3a;
    --color-accent: #c49a3c;
    --color-border: #999;
  }
}