/* 反馈组件 —— 悬浮按钮 + 弹窗(各页共用) */

.fb-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: none;
  border-radius: 24px;
  background: #5b8def;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .3);
}
.fb-fab:hover { background: #4a7ce0; }
/* 让开贴底的 sticky 主按钮(.btn-run,bottom:12px + 40px 高) */
.fb-fab--raised { bottom: 72px; }

.fb-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.fb-mask[hidden] { display: none; }

.fb-modal {
  width: 380px;
  max-width: calc(100vw - 32px);
  background: var(--panel, #1b1f27);
  color: var(--txt, #e6e6e6);
  border: 1px solid var(--border, #333);
  border-radius: 12px;
  padding: 22px 22px 18px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .45);
}
.fb-modal h3 { margin: 0 0 4px; font-size: 17px; }
.fb-modal .fb-sub { margin: 0 0 16px; font-size: 12px; color: var(--txt2, #9aa0aa); }

.fb-cats { display: flex; gap: 8px; margin-bottom: 12px; }
.fb-cat {
  flex: 1;
  padding: 8px 0;
  text-align: center;
  border: 1px solid var(--border, #333);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  background: var(--bg, #12151b);
  color: var(--txt2, #9aa0aa);
}
.fb-cat.active { border-color: #5b8def; color: #5b8def; }

.fb-modal textarea {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border, #333);
  background: var(--bg, #12151b);
  color: var(--txt, #e6e6e6);
  font-size: 14px;
  font-family: inherit;
  box-sizing: border-box;
}
.fb-modal input {
  width: 100%;
  height: 38px;
  margin-top: 10px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--border, #333);
  background: var(--bg, #12151b);
  color: var(--txt, #e6e6e6);
  font-size: 14px;
  box-sizing: border-box;
}
.fb-modal textarea:focus, .fb-modal input:focus { outline: none; border-color: #5b8def; }

.fb-msg { min-height: 18px; margin: 8px 0 2px; font-size: 12px; color: #e0684d; }
.fb-msg.ok { color: #2fa87d; }

.fb-actions { display: flex; gap: 10px; margin-top: 6px; }
.fb-submit {
  flex: 1;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: #5b8def;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}
.fb-submit:disabled { opacity: .6; cursor: default; }
.fb-cancel {
  height: 40px;
  padding: 0 16px;
  border: 1px solid var(--border, #333);
  border-radius: 8px;
  background: none;
  color: var(--txt2, #9aa0aa);
  font-size: 14px;
  cursor: pointer;
}