* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #ffffff;
  color: #111111;
}

.game-site-nav {
  max-width: 560px;
  margin: 0 auto;
  padding: 10px 16px 0;
  font-size: 14px;
}

.game-site-nav a {
  color: #2563eb;
  font-weight: 600;
  text-decoration: none;
}

.game-site-nav a:hover {
  text-decoration: underline;
}

.game-site-nav .sep {
  color: #999999;
  margin: 0 6px;
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px;
}

.app > h1 {
  margin: 0 0 8px;
  font-size: 1.3rem;
}

.lead {
  margin: 0 0 12px;
  color: #444444;
  font-size: 14px;
  line-height: 1.5;
}

.game-screen {
  position: relative;
  border: 2px solid #1e293b;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

.game-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid #cbd5e1;
}

.game-toolbar button {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid #94a3b8;
  background: #f1f5f9;
  cursor: pointer;
}

.game-toolbar button:hover {
  background: #e2e8f0;
}

.game-toolbar button.primary {
  background: #7c3aed;
  color: #ffffff;
  border-color: #6d28d9;
}

.game-toolbar button.primary:hover {
  background: #6d28d9;
}

.game-toolbar button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.game-canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
  background: #0f172a;
  touch-action: none;
}

.game-credit {
  position: absolute;
  right: 8px;
  bottom: 6px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.65);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  pointer-events: none;
  z-index: 2;
}

.hint-bar {
  padding: 8px 12px;
  font-size: 12px;
  color: #475569;
  text-align: center;
  background: rgba(255, 255, 255, 0.85);
  border-top: 1px solid #e2e8f0;
}

.rules-block {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid #e5e5e5;
}

.rules-block h2 {
  font-size: 1.05rem;
  margin: 0 0 10px;
}

.rules-block ul {
  margin: 0 0 16px;
  padding-left: 1.25rem;
  line-height: 1.6;
  font-size: 14px;
  color: #333333;
}

.game-description {
  font-size: 14px;
  line-height: 1.65;
  color: #333333;
}

.game-description h2 {
  font-size: 1.05rem;
  margin: 20px 0 10px;
}

.game-description p {
  margin: 0 0 12px;
}

.site-footer {
  max-width: 560px;
  margin: 28px auto 24px;
  padding: 16px;
  border-top: 1px solid #e5e5e5;
  text-align: center;
  font-size: 14px;
}

.site-footer a {
  color: #2563eb;
  font-weight: 600;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.game-original-footer {
  max-width: 560px;
  margin: 0 auto 40px;
  padding: 0 16px 8px;
  border-top: 1px solid #e5e5e5;
  padding-top: 20px;
  font-size: 0.85rem;
  color: #555555;
}

.game-original-footer .hub-original {
  margin: 0;
  max-width: 720px;
  line-height: 1.65;
}

.game-original-footer .hub-original > p {
  margin: 0;
}

.game-original-footer .hub-original > p + p {
  margin-top: 0.65em;
}

.game-original-footer .hub-original-title {
  margin-bottom: 0.15em;
}

.game-original-footer .hub-original strong {
  color: #111111;
}

.en-page-shell {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}

.en-page-shell .game-site-nav {
  max-width: none;
}

.en-main-beside-ad .app {
  margin-left: 0;
  margin-right: 0;
  max-width: 560px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-overlay.is-open {
  display: flex;
}

.modal {
  background: #ffffff;
  border-radius: 12px;
  padding: 22px;
  max-width: 360px;
  width: 100%;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.modal h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.modal p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.55;
  color: #333333;
}

.modal .modal-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.modal .modal-actions button {
  flex: 1;
  min-width: 100px;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid #cccccc;
  cursor: pointer;
}

.modal .modal-actions button.primary {
  background: #7c3aed;
  color: #ffffff;
  border-color: #6d28d9;
}