:root{--lt-blue:#00449a;--lt-blue-d:#00337a;
  /* ↓ 想上下调整工具条位置，只改这里的百分比（50%=正中间，60%=偏下） */
  --lt-pos:58%}

/* ---------- 右侧工具条 ---------- */
.lt-bar{position:fixed;right:16px;top:var(--lt-pos);transform:translateY(-50%);z-index:10000;
  display:flex;flex-direction:column;gap:10px}
.lt-bar button{position:relative;width:60px;height:60px;border-radius:50%;
  border:1px solid #dbe4f0;background:#fff;cursor:pointer;padding:0;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 3px 12px rgba(26,109,204,.20);transition:.18s}
.lt-bar button:hover{background:var(--lt-blue);border-color:var(--lt-blue)}
.lt-bar button:hover svg{fill:#fff;stroke:#fff}
.lt-bar svg{width:27px;height:27px;fill:var(--lt-blue);stroke:var(--lt-blue);transition:.18s}
.lt-bar button.on{background:var(--lt-blue);border-color:var(--lt-blue)}
.lt-bar button.on svg{fill:#fff;stroke:#fff}

/* 文字气泡提示 */
.lt-bar button::after{content:attr(data-tip);position:absolute;right:68px;top:50%;
  transform:translateY(-50%);background:#333;color:#fff;font-size:12px;
  padding:5px 10px;border-radius:5px;white-space:nowrap;opacity:0;pointer-events:none;
  transition:.18s;font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-bar button:hover::after{opacity:1}

/* ---------- 通用面板 ---------- */
.lt-panel{position:fixed;right:88px;top:var(--lt-pos);transform:translateY(-50%);z-index:10001;
  width:380px;max-width:calc(100vw - 110px);background:#fff;border-radius:12px;
  box-shadow:0 10px 40px rgba(0,0,0,.22);display:none;flex-direction:column;
  overflow:hidden;font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-panel.on{display:flex}
.lt-hd{background:var(--lt-blue);color:#fff;padding:14px 16px;
  display:flex;align-items:center;justify-content:space-between}
/* 显式设色：继承的白色会被站点全局 h4/span 规则覆盖 */
.lt-hd h4{margin:0;padding:0;font-size:16.5px;font-weight:700;
  color:#fff !important;line-height:1.4;letter-spacing:0;text-indent:0;
  font-family:"Microsoft YaHei","微软雅黑","Hiragino Sans GB",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.lt-hd span{display:block;font-size:12px;opacity:.9;margin-top:2px;
  font-weight:normal;color:#fff !important;letter-spacing:0;text-indent:0;
  font-family:"Microsoft YaHei","微软雅黑","Hiragino Sans GB",Arial,sans-serif}
.lt-x{background:0;color:#fff !important;border:0;font-size:24px;cursor:pointer;
  line-height:1;padding:0 4px;
  font-family:"Microsoft YaHei","微软雅黑",Arial,sans-serif}

/* ---------- 电话 / 微信面板内容 ---------- */
.lt-bd{padding:16px;background:#f5f7fa;overflow-y:auto}
.lt-tel{display:block;background:#fff;border:1px solid #e3e8f0;border-radius:9px;
  padding:13px 15px;margin-bottom:10px;text-decoration:none;color:#222}
.lt-tel:hover{border-color:var(--lt-blue);background:#f7fbff}
.lt-tel b{display:block;font-size:15px;color:#222}
.lt-tel i{display:block;font-style:normal;font-size:12.5px;color:#888;margin-top:2px}
.lt-tel u{display:block;text-decoration:none;font-size:13px;color:var(--lt-blue);margin-top:4px}

.lt-wxbox{background:#fff;border:1px solid #e3e8f0;border-radius:9px;
  padding:14px;text-align:center;margin-bottom:11px}
.lt-wxbox img{max-width:160px;border:1px solid #eee;border-radius:6px}
.lt-wxbox b{display:block;font-size:15px;margin-bottom:4px}
.lt-wxbox i{display:block;font-style:normal;font-size:12.5px;color:#888;margin-bottom:9px}
.lt-copy{background:var(--lt-blue);color:#fff;border:0;border-radius:6px;
  padding:7px 15px;font-size:13px;cursor:pointer;margin-top:9px;
  font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-copy:hover{background:var(--lt-blue-d)}
.lt-note{background:#eef4fb;border-left:3px solid var(--lt-blue);padding:9px 12px;
  font-size:12px;color:#31527a;border-radius:0 6px 6px 0;line-height:1.65;margin-bottom:10px}

/* ---------- AI 面板 ---------- */
.lt-ai{max-height:70vh}
.lt-ai-bd{flex:1;overflow-y:auto;padding:14px 15px;background:#f5f7fa}
.lt-msg{background:#fff;border:1px solid #e3e8f0;border-radius:9px;
  padding:11px 13px;margin-bottom:10px;font-size:13.5px;line-height:1.75;color:#333}
.lt-msg b{color:var(--lt-blue)}
.lt-tip{font-size:12.5px;color:#888;text-align:center;padding:14px 8px}
.lt-res{background:#fff;border:1px solid #e3e8f0;border-radius:9px;
  padding:11px 13px;margin-bottom:9px}
.lt-res a{color:var(--lt-blue);text-decoration:none;font-size:14px;font-weight:600;
  display:block;margin-bottom:4px;line-height:1.5}
.lt-res a:hover{text-decoration:underline}
.lt-res p{margin:0 0 6px;font-size:12.5px;color:#555;line-height:1.6}
.lt-res .m{font-size:11.5px;color:#999}
.lt-res .t{display:inline-block;background:#e8eef7;color:var(--lt-blue);
  padding:1px 7px;border-radius:3px;margin-right:6px}
.lt-old{color:#c62828;font-size:11.5px}   /* 过期文章提示 */

.lt-ft{border-top:1px solid #e3e8f0;padding:10px 12px;background:#fff}
.lt-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:9px}
.lt-tags button{background:#eef2f8;border:1px solid #dbe4f0;color:var(--lt-blue);
  border-radius:14px;padding:4px 11px;font-size:12px;cursor:pointer;
  font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-tags button:hover{background:#dbe4f2}
.lt-in{display:flex;gap:7px}
.lt-in input{flex:1;border:1px solid #ccd3dd;border-radius:6px;
  padding:9px 11px;font-size:13.5px;font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-in button{background:var(--lt-blue);color:#fff;border:0;border-radius:6px;
  padding:9px 17px;font-size:13.5px;cursor:pointer;
  font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-in button:hover{background:var(--lt-blue-d)}

/* ---------- 移动端 ---------- */
@media(max-width:640px){
  .lt-bar{right:8px;top:var(--lt-pos);transform:translateY(-50%);gap:8px}
  .lt-bar button{width:50px;height:50px}
  .lt-bar svg{width:23px;height:23px}
  .lt-bar button::after{display:none}
  .lt-panel{right:8px;left:8px;width:auto;max-width:none;
    top:var(--lt-pos);transform:translateY(-50%)}
  .lt-ai{max-height:60vh}
}

/* ---------- 结构化知识卡片 ---------- */
.lt-kb{background:#fff;border:1px solid #e3e8f0;border-radius:10px;
  margin-bottom:11px;overflow:hidden}
.lt-kb-h{background:#f7fafd;border-bottom:1px solid #eef2f7;
  padding:9px 13px;font-size:14px;font-weight:600;color:#123a63;
  display:flex;align-items:center;justify-content:space-between}
.lt-kb-h em{font-style:normal;font-size:11.5px;color:#888;font-weight:normal}
.lt-kb-tb{width:100%;border-collapse:collapse;font-size:13px}
.lt-kb-tb th{background:#fafcfd;color:#555;font-weight:600;text-align:left;
  padding:7px 12px;border-bottom:1px solid #eef2f7;font-size:12.5px}
.lt-kb-tb td{padding:7px 12px;border-bottom:1px solid #f2f5f9;color:#333}
.lt-kb-tb tr:last-child td{border-bottom:0}
.lt-kb-tb tr:nth-child(even) td{background:#fcfdfe}
.lt-kb-kv td:first-child{color:#666;width:38%}
.lt-kb-tags2{padding:10px 12px;display:flex;flex-wrap:wrap;gap:6px}
.lt-kb-tags2 span{background:#e8eef7;color:#00449a;padding:3px 10px;
  border-radius:13px;font-size:12.5px}
.lt-kb-src{padding:9px 13px;border-top:1px solid #f2f5f9;font-size:12px;color:#888}
.lt-kb-src a{color:#00449a;text-decoration:none;display:block;cursor:pointer;
  padding:3px 0;line-height:1.5}
.lt-kb-src a:hover{text-decoration:underline}
.lt-kb-more{background:#f7fafd;border:0;color:#00449a;font-size:12px;
  cursor:pointer;padding:6px 13px;width:100%;text-align:center;
  font-family:"Microsoft YaHei",Arial,sans-serif}
.lt-kb-more:hover{background:#e8eef7}