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ul{padding-left:1.2rem}@media (width>=760px){.has-nav{padding-top:var(--top-h)}.page{padding-bottom:40px}.has-nav .topbar{top:var(--top-h)}.bottom-nav{border-top:0;border-bottom:1px solid var(--line);flex-direction:row;justify-content:center;gap:12px;height:56px;top:0;bottom:auto}.bottom-nav a{flex-direction:row;flex:none;padding:0 14px;font-size:.9rem}.bottom-nav svg{width:20px;height:20px}.page{padding-top:24px}.fab-row{bottom:8px}}@media (width<=759px){.md table{font-size:.88rem}.md th,.md td{min-width:11rem;padding:8px 10px}.md td:first-child{min-width:7rem}}.lesson-head{margin-bottom:12px}.lesson-sum{cursor:pointer;-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0;display:-webkit-box;overflow:hidden}.lesson-sum.open{display:block}@media 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1rem;position:fixed;box-shadow:0 6px 20px #1d4ed859}.slide-enter-active,.slide-leave-active{transition:transform .22s}.slide-enter-from,.slide-leave-to{transform:translate(100%)}@media (width>=760px){.tutor-panel{top:var(--top-h);border-left:1px solid var(--line);width:420px}.tutor-fab{bottom:84px;right:24px}}@media (width>=1180px){.lesson-shell.with-tutor .page{margin-left:max(0px, calc((100% - var(--page-w)) / 2));max-width:none;margin-right:420px}.tutor-panel{box-shadow:none}}.msg{white-space:pre-wrap;border-radius:14px;max-width:92%;padding:8px 12px;font-size:.94rem;line-height:1.5}.msg.user{background:var(--primary);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.msg.ai{border:1px solid var(--line);white-space:normal;background:#fff;border-bottom-left-radius:4px;align-self:flex-start}.msg.ai .md p:first-child{margin-top:0}.msg.ai .md p:last-child{margin-bottom:0}.msg.typing{align-items:center;gap:4px;padding:10px 14px;display:flex}.msg.typing 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0}.step-dot{background:var(--bg);border-radius:50%;flex:none;justify-content:center;align-items:center;width:26px;height:26px;font-size:.8rem;display:inline-flex}.step-dot.done{background:var(--accent-soft);color:var(--accent);font-weight:700}.step-dot.part{background:var(--warn-soft)}.next-card{border-left:5px solid var(--primary)}.intro-card{background:linear-gradient(135deg,#eef2ff,#f5f3ff);border:1px solid #c7d2fe}.intro-card h3{margin:10px 0 4px}.intro-card ul{margin:2px 0 6px;padding-left:1.2rem}.plan-trainer .crit{border-collapse:collapse;width:100%;margin:8px 0;font-size:.9rem}.plan-trainer .crit th,.plan-trainer .crit td{border:1px solid var(--line);vertical-align:top;text-align:left;padding:6px 8px}.plan-trainer .crit th{background:var(--bg)}.pt-detailed>span:first-child{background:var(--accent-soft);border-radius:6px;padding:0 4px}.my-point{border-bottom:1px dashed var(--line);padding:8px 0}.my-point input{min-height:40px;padding:.4rem .7rem}.ok-text{color:#047857}.err-text{color:#b91c1c}.plan-result{margin-top:10px}