/* 吴师兄 AI 私教挂件样式 — 白色明亮基调，橙色品牌点缀 */
#ws-tutor{position:fixed;right:22px;bottom:22px;z-index:9999;font-family:var(--sans)}

/* 悬浮入口 */
.wt-fab{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#F97316,#EA6A1F);
  color:#fff;border:none;border-radius:999px;padding:11px 18px 11px 12px;cursor:pointer;
  box-shadow:0 10px 30px rgba(249,115,22,.38);font-weight:800;font-size:14px;position:relative}
.wt-fab:hover{transform:translateY(-1px)}
.wt-fab.on{display:none}
.wt-fab-ic{width:30px;height:30px;border-radius:50%;background:#fff;color:#F97316;font-weight:900;
  display:flex;align-items:center;justify-content:center;font-size:17px}
.wt-fab-tx{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.wt-fab-tx small{font-size:10px;font-weight:700;opacity:.85}
.wt-fab-dot{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;padding:0 4px;border-radius:9px;
  background:#16A34A;color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;border:2px solid #fff}

/* 主面板 */
/* 桌面端更从容：随视口缩放，大屏更大、小屏自适应（<820px 由下方媒体查询接管为近全屏） */
.wt-panel{position:fixed;right:22px;bottom:22px;width:min(880px,calc(100vw - 32px));height:min(660px,calc(100vh - 48px));
  background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 70px rgba(27,34,48,.22);
  display:flex;flex-direction:column;overflow:hidden}
/* 关键：[hidden] 的 display:none 会被上面的 display:flex 盖掉，必须显式收起，否则关闭按钮“失效” */
.wt-panel[hidden]{display:none}
.wt-head{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(249,115,22,.06),transparent)}
.wt-h-title{font-weight:900;font-size:15px;display:flex;align-items:center;gap:8px;color:var(--ink)}
.wt-h-logo{width:24px;height:24px;border-radius:7px;background:linear-gradient(135deg,#F97316,#EA6A1F);color:#fff;
  font-weight:900;display:flex;align-items:center;justify-content:center;font-size:14px}
.wt-h-vip{background:rgba(249,115,22,.12);color:#EA6A1F;font-size:11px;font-weight:800;padding:2px 7px;border-radius:6px}
.wt-h-act{display:flex;gap:6px}
.wt-h-act button{background:var(--bg2);border:1px solid var(--line);color:var(--soft);border-radius:8px;
  padding:4px 10px;font-size:12px;font-weight:700;cursor:pointer}
.wt-h-act .wt-close{font-size:18px;line-height:1;padding:2px 9px}
.wt-h-act button:hover{color:var(--ink)}
/* 通关清单切换按钮：on=正在显示(橙高亮)；hint=首次脉冲提示「可点」 */
.wt-h-act .wt-clist.on{background:rgba(249,115,22,.12);border-color:rgba(249,115,22,.45);color:#EA6A1F}
.wt-h-act .wt-clist.hint{border-color:rgba(249,115,22,.6);color:#EA6A1F;animation:wt-clist-pulse 1.6s ease-in-out infinite}
@keyframes wt-clist-pulse{0%,100%{box-shadow:0 0 0 0 rgba(249,115,22,.45)}50%{box-shadow:0 0 0 5px rgba(249,115,22,0)}}

/* 默认「答疑」模式：聊天区占满；只有进入「通关训练」(.coach)才显示右侧清单 */
.wt-body{flex:1;display:grid;grid-template-columns:1fr;min-height:0}
.wt-panel.coach .wt-body{grid-template-columns:minmax(0,1fr) 232px}

/* 答疑开场：问候语 + 可点卡点 chips + 通关训练入口 */
.wt-welcome{align-self:stretch;background:linear-gradient(160deg,rgba(249,115,22,.06),var(--card));
  border:1px solid rgba(249,115,22,.25);border-radius:13px;padding:13px 14px}
.wt-welcome .ww-hi{font-size:14px;color:var(--ink);line-height:1.7;margin-bottom:10px}
.wt-welcome .ww-hi b{color:#EA6A1F}
.wt-chips{display:flex;flex-direction:column;gap:7px}
.wt-chip{display:flex;gap:8px;align-items:flex-start;text-align:left;cursor:pointer;background:var(--card);
  border:1px solid var(--line);border-radius:10px;padding:8px 11px;font-size:13px;line-height:1.5;color:var(--ink);
  font-family:inherit}
.wt-chip:hover{border-color:var(--orange);background:#FFF7F0}
.wt-chip .wc-ic{flex:0 0 auto;width:18px;height:18px;border-radius:6px;background:rgba(249,115,22,.12);color:#EA6A1F;
  font-weight:900;font-size:12px;display:flex;align-items:center;justify-content:center;margin-top:1px}
.wt-coach-cta{margin-top:11px;padding-top:10px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--soft);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.wt-coach-btn{background:var(--bg2);border:1px solid rgba(249,115,22,.4);color:#EA6A1F;border-radius:8px;
  padding:5px 11px;font-size:12.5px;font-weight:800;cursor:pointer;font-family:inherit}
.wt-coach-btn:hover{background:#FFF3E8}

/* 聊天区 */
.wt-chat{padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}
.wt-b{display:flex;gap:9px;max-width:92%}
.wt-ai{align-self:flex-start}
.wt-user{align-self:flex-end;flex-direction:row-reverse}
.wt-av{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#F97316,#EA6A1F);
  color:#fff;font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center}
.wt-tx{background:var(--bg2);border:1px solid var(--line);border-radius:13px;padding:9px 13px;font-size:14px;line-height:1.7;color:var(--ink)}
.wt-user .wt-tx{background:#FFF3E8;border-color:rgba(249,115,22,.3)}
.wt-tx code{font-family:var(--mono);font-size:12.5px;background:rgba(0,0,0,.05);padding:1px 5px;border-radius:5px}
.wt-typing .wt-tx{display:flex;gap:4px;padding:12px 14px}
.wt-typing i{width:6px;height:6px;border-radius:50%;background:var(--soft2);animation:wtb 1s infinite}
.wt-typing i:nth-child(2){animation-delay:.15s}.wt-typing i:nth-child(3){animation-delay:.3s}
@keyframes wtb{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}

/* 对话内选择题 */
.wt-quiz{align-self:flex-start;max-width:92%;background:var(--card);border:1px solid rgba(249,115,22,.3);border-radius:13px;padding:12px 14px}
.wt-q{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px;line-height:1.6}
.wt-opts{display:flex;flex-direction:column;gap:7px}
.wt-opt{display:flex;align-items:center;gap:9px;text-align:left;background:var(--bg2);border:1px solid var(--line);
  border-radius:9px;padding:8px 11px;font-size:13.5px;cursor:pointer;color:var(--ink)}
.wt-opt:hover:not(.lock){border-color:var(--orange)}
.wt-k{flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--card);border:1px solid var(--line);
  font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center;color:var(--soft)}
.wt-opt.lock{cursor:default;opacity:.85}
.wt-opt.right{border-color:var(--green);background:rgba(22,163,74,.08)}
.wt-opt.right .wt-k{background:var(--green);color:#fff;border-color:var(--green)}
.wt-opt.wrong{border-color:var(--red);background:rgba(239,68,68,.08)}
.wt-ex{margin-top:10px;font-size:13px;line-height:1.65;padding:9px 11px;border-radius:9px}
.wt-ex.ok{background:rgba(22,163,74,.08);color:#15803d}
.wt-ex.bad{background:rgba(239,68,68,.08);color:#b91c1c}
.wt-grad{align-self:center;background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.3);color:#EA6A1F;
  border-radius:11px;padding:10px 14px;font-size:13px;font-weight:700;text-align:center}
/* 付费墙拦截卡片 */
.wt-gate{align-self:center;max-width:92%;text-align:center;background:rgba(249,115,22,.05);
  border:1px solid rgba(249,115,22,.3);border-radius:14px;padding:18px 20px;margin:6px 0}
.wt-gate-ic{font-size:26px;margin-bottom:6px}
.wt-gate-tx{font-size:13.5px;color:var(--ink);line-height:1.7;margin-bottom:12px}
.wt-gate-btn{background:linear-gradient(135deg,#F97316,#EA6A1F);color:#fff;border:none;border-radius:10px;
  padding:9px 22px;font-weight:800;font-size:14px;cursor:pointer}
.wt-gate-btn:hover{filter:brightness(1.05)}

/* 侧栏 checklist —— 仅「通关训练」模式显示 */
.wt-side{display:none;border-left:1px solid var(--line);background:var(--bg2);padding:14px;overflow-y:auto}
.wt-panel.coach .wt-side{display:block}
.wt-side-t{font-size:13px;font-weight:800;color:var(--ink);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.wt-prog{font-size:12px;font-weight:800;color:#EA6A1F;background:rgba(249,115,22,.12);padding:2px 8px;border-radius:7px}
.wt-side-sub{font-size:11.5px;line-height:1.55;color:var(--soft);margin-bottom:12px}
.wt-side-reward{margin-top:12px;font-size:11.5px;line-height:1.6;color:#EA6A1F;background:rgba(249,115,22,.08);
  border:1px dashed rgba(249,115,22,.4);border-radius:9px;padding:9px 10px}
.wt-sch-bar{height:6px;border-radius:99px;background:rgba(249,115,22,.16);margin:6px 0;overflow:hidden}
.wt-sch-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#F97316,#EA6A1F);transition:width .4s}
.wt-sch-login{margin-top:8px;display:block;width:100%;background:linear-gradient(135deg,#F97316,#EA6A1F);color:#fff;
  border:none;border-radius:8px;padding:6px 10px;font-size:12px;font-weight:800;cursor:pointer;font-family:inherit}
/* 达标提示 toast */
.wt-sch-toast{position:absolute;left:50%;bottom:78px;transform:translate(-50%,12px);max-width:84%;
  background:#16A34A;color:#fff;font-size:13px;font-weight:700;padding:10px 16px;border-radius:12px;
  box-shadow:0 12px 30px rgba(22,163,74,.35);opacity:0;transition:all .3s;pointer-events:none;text-align:center;z-index:5}
.wt-sch-toast.show{opacity:1;transform:translate(-50%,0)}
.wt-list{display:flex;flex-direction:column;gap:7px}
.wt-item{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;line-height:1.5;color:var(--soft);
  background:var(--card);border:1px solid var(--line);border-radius:9px;padding:8px 10px}
.wt-box{flex:0 0 auto;width:17px;height:17px;border-radius:5px;border:1.5px solid var(--soft2);
  display:flex;align-items:center;justify-content:center;font-size:11px;color:#fff;margin-top:1px}
.wt-item.done{color:var(--ink);border-color:rgba(22,163,74,.4);background:rgba(22,163,74,.05)}
.wt-item.done .wt-box{background:var(--green);border-color:var(--green)}

/* 输入区 */
.wt-input{display:flex;gap:9px;padding:11px 14px;border-top:1px solid var(--line);align-items:flex-end}
.wt-input textarea{flex:1;resize:none;border:1px solid var(--line);border-radius:11px;padding:9px 12px;
  font-family:var(--sans);font-size:14px;line-height:1.5;color:var(--ink);background:var(--card);max-height:96px}
.wt-input textarea:focus{outline:none;border-color:var(--orange)}
.wt-send{flex:0 0 auto;background:linear-gradient(135deg,#F97316,#EA6A1F);color:#fff;border:none;border-radius:11px;
  padding:10px 18px;font-weight:800;font-size:14px;cursor:pointer}
.wt-send:hover{filter:brightness(1.05)}

@media(max-width:820px){
  .wt-panel{width:calc(100vw - 16px);height:calc(100vh - 24px);right:8px;bottom:8px}
  .wt-body{grid-template-columns:1fr}
  .wt-side{display:none}
}
/* AI 内容合规标识 */
.wt-ainote{text-align:center;font-size:11px;color:var(--soft2);padding:0 0 8px;background:var(--card)}