/* 弹窗（使用须知 / 关于本站），参数与 custom-theme.css 同一套 */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(30, 45, 50, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: min(480px, 92vw);
  max-height: 84vh;
  overflow-y: auto;
  padding: 24px;
  text-align: center;
  color: var(--c-text, #3a4a50);
  background: var(--c-surface, #ffffff);
  border: 1px solid var(--c-border, #dce7e9);
  border-radius: 14px;
  box-shadow: var(--shadow-card, 0 2px 12px rgba(58, 74, 80, 0.08));
}

.modal-content h2 {
  margin: 0 0 12px;
  color: var(--c-text, #3a4a50);
  font-size: 18px;
  font-weight: 700;
}

.modal-content p {
  margin: 12px 0;
  font-size: 13px;
  line-height: 1.7;
  text-align: left;
  word-break: break-word;
}

.modal-content p strong {
  color: var(--c-primary, #3fb8c4);
}

.modal-content a {
  color: var(--c-primary, #3fb8c4);
  word-break: break-all;
}

.modal-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.modal-button {
  appearance: none;
  height: 40px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1.5px solid var(--c-primary-border, #9adbe2);
  background: #ffffff;
  color: var(--c-primary, #3fb8c4);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.modal-button-agree {
  background: var(--c-primary, #3fb8c4);
  border-color: var(--c-primary, #3fb8c4);
  color: #ffffff;
}

.modal-button-agree:hover {
  background: var(--c-primary-hover, #35a3ae);
  border-color: var(--c-primary-hover, #35a3ae);
}

.modal-button-disagree:hover {
  background: var(--c-primary-soft, #e3f6f8);
  border-color: var(--c-primary, #3fb8c4);
}

.modal-button:active {
  transform: translateY(1px);
}