/**
 * MCube AI 助手（右下角浮窗）样式
 *
 * 视觉沿用全站的「原版 MC GUI」石板风格：2px 黑描边 + 立体斜面 + 深色文字，
 * 颜色全部走 mc-gui.css 里的 --mc-* 变量（未加载主题时回落到硬编码值）。
 */

.mcai-root {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9000;
  font-family: var(--mc-font, 'Microsoft YaHei', 'PingFang SC', sans-serif);
}

/* ---------- 悬浮按钮 ---------- */
.mcai-fab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 56px;
  height: 56px;
  padding: 0 16px;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  color: #101010;
  background: var(--mc-gold, #ffaa00);
  border: 2px solid var(--mc-line, #000);
  border-radius: 0;
  box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555), 0 4px 0 rgba(0, 0, 0, 0.35);
  transition: transform 0.15s ease, background 0.15s ease;
}
.mcai-fab:hover { background: #ffc24d; }
.mcai-fab.active { background: var(--mc-panel, #c6c6c6); }
.mcai-fab:active { transform: translateY(2px); box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555); }
.mcai-fab .mi { font-size: 20px; }

/* ---------- 聊天面板 ---------- */
.mcai-panel {
  position: absolute;
  right: 0;
  bottom: 68px;
  width: min(360px, calc(100vw - 24px));
  /* 高度同时受三个上限约束：绝对上限 460px、视口比例 62vh、以及
     —— 手机弹出软键盘时由 JS 写进来的 --mcai-avail（可视区高度 − 输入区与悬浮按钮占位）。
     没有第三个上限时，面板会高于键盘顶开后的可视区，顶部被裁掉一截（实测「首屏引导语」被切掉半个），
     且面板下方的空白会露出页面根底色，看起来就是一块突兀的棕色空白。 */
  height: min(460px, 62vh, var(--mcai-avail, 62vh));
  display: flex;
  flex-direction: column;
  background: var(--mc-panel, #c6c6c6);
  border: 2px solid var(--mc-line, #000);
  border-radius: 0;
  box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555), 0 10px 30px rgba(0, 0, 0, 0.45);
  color: var(--mc-text, #3f3f3f);
  overflow: hidden;
}
/* 收起时必须真正不渲染：.mcai-panel 自身是 display:flex，
   一旦本规则被同特异性的其它规则覆盖，面板就会「空着但仍可见」，占住屏幕一块区域 */
.mcai-panel[hidden] { display: none !important; }

.mcai-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--mc-stone-dark, #3f3f3f);
  color: var(--mc-white, #fff);
  border-bottom: 2px solid var(--mc-line, #000);
}
.mcai-head .mi { font-size: 18px; color: var(--mc-gold, #ffaa00); }
.mcai-title { flex: 1; min-width: 0; font-size: 15px; font-weight: 700; }
.mcai-title small { display: block; font-size: 11px; font-weight: 400; opacity: 0.75; }
.mcai-close {
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; flex: 0 0 28px; padding: 0;
  cursor: pointer; font-size: 14px; color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 2px solid var(--mc-line, #000); border-radius: 0;
}
.mcai-close:hover { background: rgba(255, 255, 255, 0.24); }

/* ---------- 消息区 ---------- */
.mcai-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mcai-msg {
  max-width: 88%;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  border: 2px solid var(--mc-line, #000);
}
.mcai-msg.bot {
  align-self: flex-start;
  background: #e9e9e9;
  box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555);
}
.mcai-msg.me {
  align-self: flex-end;
  background: #9fc4e8;
  box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555);
}
.mcai-msg.err { background: #e8b0b0; }
/* 「正在输入」的三个小点 */
.mcai-typing { display: inline-flex; gap: 4px; align-items: center; height: 18px; }
.mcai-typing i { width: 6px; height: 6px; background: #6a6a6a; animation: mcai-blink 1s infinite ease-in-out; }
.mcai-typing i:nth-child(2) { animation-delay: 0.15s; }
.mcai-typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes mcai-blink { 0%, 80%, 100% { opacity: 0.3; } 40% { opacity: 1; } }

/* 首屏引导语（可点击直接提问） */
.mcai-tips { display: flex; flex-wrap: wrap; gap: 6px; }
.mcai-tip {
  padding: 6px 10px; font-family: inherit; font-size: 12px; cursor: pointer;
  color: var(--mc-text, #3f3f3f); background: #dcdcdc;
  border: 2px solid var(--mc-line, #000); border-radius: 0;
}
.mcai-tip:hover { background: #ffd98a; }

/* ---------- 输入区 ---------- */
.mcai-foot {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px;
  border-top: 2px solid var(--mc-line, #000);
  background: var(--mc-slot, #8b8b8b);
  box-shadow: var(--mc-inset, inset 2px 2px 0 #373737, inset -2px -2px 0 #fff);
}
.mcai-input {
  flex: 1;
  min-width: 0;
  max-height: 96px;
  resize: none;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mc-text, #3f3f3f);
  background: #ffffff;
  border: 2px solid var(--mc-line, #000);
  border-radius: 0;
  outline: none;
}
.mcai-input:focus { background: #ffffe8; }
.mcai-send {
  flex: 0 0 auto;
  height: 38px;
  padding: 0 14px;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  color: #101010;
  background: var(--mc-green-hi, #5fbb3a);
  border: 2px solid var(--mc-line, #000);
  border-radius: 0;
  box-shadow: var(--mc-bevel, inset 2px 2px 0 #fff, inset -2px -2px 0 #555);
}
.mcai-send:hover { background: #74d24a; }
.mcai-send[disabled] { opacity: 0.55; cursor: not-allowed; }

@media (max-width: 640px) {
  .mcai-root { right: 12px; bottom: 12px; }
  .mcai-fab { height: 50px; min-width: 50px; padding: 0 14px; font-size: 14px; }
  .mcai-panel { bottom: 60px; height: min(430px, 58vh, var(--mcai-avail, 58vh)); }
}

/* ---------- AI 回复里的 Markdown 渲染结果 ---------- */
/* 消息气泡自带 white-space: pre-wrap，渲染成 HTML 后要改回 normal，
   否则标签之间的换行会被当成空行，段落间距会翻倍 */
.mcai-msg.md { white-space: normal; }
.mcai-msg.md > *:first-child { margin-top: 0; }
.mcai-msg.md > *:last-child { margin-bottom: 0; }
.mcai-msg.md p { margin: 0 0 8px; }
.mcai-msg.md h1, .mcai-msg.md h2, .mcai-msg.md h3,
.mcai-msg.md h4, .mcai-msg.md h5, .mcai-msg.md h6 {
  margin: 10px 0 6px;
  font-size: 14.5px;
  font-weight: 700;
  color: #1f1f1f;
}
.mcai-msg.md ul, .mcai-msg.md ol { margin: 4px 0 8px; padding-left: 20px; }
.mcai-msg.md li { margin: 2px 0; }
.mcai-msg.md a { color: #1b4e8f; text-decoration: underline; word-break: break-all; }
.mcai-msg.md code {
  padding: 1px 5px; font-family: Consolas, Menlo, monospace; font-size: 13px;
  background: rgba(0, 0, 0, 0.08); border: 1px solid rgba(0, 0, 0, 0.14);
}
.mcai-msg.md pre {
  margin: 6px 0; padding: 8px 10px; overflow-x: auto;
  background: #2b2b2b; border: 2px solid var(--mc-line, #000);
}
.mcai-msg.md pre code { padding: 0; background: none; border: none; color: #f0f0f0; }
.mcai-msg.md blockquote {
  margin: 6px 0; padding: 4px 10px;
  border-left: 3px solid #8b8b8b; background: rgba(0, 0, 0, 0.05);
}
.mcai-msg.md hr { margin: 8px 0; border: none; border-top: 2px solid rgba(0, 0, 0, 0.15); }
.mcai-msg.md table { border-collapse: collapse; margin: 6px 0; font-size: 13px; }
.mcai-msg.md th, .mcai-msg.md td { padding: 4px 8px; border: 1px solid rgba(0, 0, 0, 0.2); }