/* 电子书登录与权限提示 */
.ebook-auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(0, 0, 0, 0.45);
  box-sizing: border-box;
}

.ebook-auth-overlay.active {
  display: flex;
}

body.ebook-auth-open {
  overflow: hidden;
}

.ebook-auth-panel {
  width: 100%;
  max-width: 360px;
  padding: 28px 22px 22px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  box-sizing: border-box;
}

.ebook-auth-title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 600;
  color: #191919;
  text-align: center;
}

.ebook-auth-desc {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.6;
  color: #666;
  text-align: center;
}

.ebook-auth-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.ebook-auth-btn {
  width: 100%;
  height: 44px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}

.ebook-auth-btn-primary {
  background: #c0392b;
  color: #fff;
}

.ebook-auth-btn-primary:active {
  opacity: 0.9;
}

.ebook-auth-btn-ghost {
  background: transparent;
  color: #666;
}

.ebook-auth-input {
  width: 100%;
  height: 44px;
  margin-top: 4px;
  padding: 0 12px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-size: 18px;
  letter-spacing: 2px;
  text-align: center;
  text-transform: uppercase;
  box-sizing: border-box;
}

.ebook-user-hint--ok {
  color: #2e7d4e;
}


.ebook-user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f7f7f7;
}

.ebook-user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.ebook-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.ebook-user-name {
  font-size: 14px;
  color: #191919;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ebook-user-hint {
  font-size: 13px;
  color: #888;
}

.ebook-login-btn,
.ebook-user-logout {
  flex-shrink: 0;
  height: 32px;
  padding: 0 14px;
  border: none;
  border-radius: 16px;
  font-size: 13px;
  cursor: pointer;
}

.ebook-login-btn {
  background: #c0392b;
  color: #fff;
}

.ebook-user-logout {
  background: #ececec;
  color: #666;
}