<style>
*{box-sizing:border-box}
:root{
 --bg:#eef3fb; --panel:#fff; --ink:#1d2b45; --dim:#6a7b98; --line:#d3deef;
 --acc:#2f6fed; --acc2:#e8f0ff; --ok:#12a150; --okbg:#e6f7ed; --bad:#e0405a; --badbg:#fdeaed;
 --gold:#e8a411; --goldbg:#fff5e0; --c1:#7a4de8; --c2:#e8722c; --c3:#0f9b8e;
 --r:18px; --sh:0 10px 28px rgba(29,43,69,.10);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,-apple-system,sans-serif;overflow:hidden}
#app{display:flex;flex-direction:column;height:100vh}

/* header */
header{height:58px;flex:0 0 58px;display:flex;align-items:center;gap:12px;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);z-index:40}
header .ttl{font-weight:800;font-size:16px;white-space:nowrap}
header .ttl small{display:block;font-size:11px;color:var(--dim);font-weight:500}
.spacer{flex:1}
.tbtn{background:#fff;border:1.5px solid var(--line);color:var(--ink);padding:7px 13px;border-radius:10px;cursor:pointer;font-size:13px;font-family:inherit;transition:.15s;white-space:nowrap}
.tbtn:hover{border-color:var(--acc);color:var(--acc)}
.tbtn.on{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:700}
.seg{display:flex;background:#f1f5fc;border:1.5px solid var(--line);border-radius:11px;padding:3px;gap:3px}
.seg button{background:none;border:0;color:var(--dim);padding:6px 13px;border-radius:8px;cursor:pointer;font-size:13px;font-family:inherit;font-weight:600}
.seg button.on{background:var(--acc);color:#fff}
.stat{font-size:13px;color:var(--dim);white-space:nowrap}
.stat b{color:var(--gold);font-size:16px}
.pbar{width:120px;height:8px;background:#e7eefb;border-radius:5px;overflow:hidden}
.pbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#5b9bff,#12a150);transition:.4s}

/* body */
#main{flex:1;display:flex;min-height:0}

/* map */
#mapwrap{width:314px;flex:0 0 314px;overflow-y:auto;padding:14px 10px 40px 14px;background:#f7faff;border-right:1px solid var(--line)}
#mapwrap::-webkit-scrollbar{width:8px}#mapwrap::-webkit-scrollbar-thumb{background:#cbd9ef;border-radius:4px}
.maptip{font-size:11.5px;color:var(--dim);background:#fff;border:1px dashed var(--line);border-radius:12px;padding:10px 12px;line-height:1.7;margin-bottom:12px}
.root{font-weight:800;font-size:15px;padding:10px 12px;background:linear-gradient(90deg,#dce9ff,transparent);border-left:4px solid var(--acc);border-radius:0 10px 10px 0;margin-bottom:12px;line-height:1.4}
.root small{display:block;font-weight:500;font-size:11px;color:var(--dim);margin-top:3px}
.branch{margin-bottom:6px}
.bh{display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:12px;cursor:pointer;background:#fff;border:1.5px solid transparent;transition:.15s;user-select:none}
.bh:hover{background:#eef4ff}
.branch.cur .bh{border-color:var(--acc);background:var(--acc2)}
.bh .ic{font-size:17px;width:22px;text-align:center}
.bh .nm{flex:1;font-size:13.5px;font-weight:700}
.bh .ct{font-size:11px;color:var(--dim);background:#f1f5fc;border-radius:20px;padding:2px 8px}
.bh .ct.full{background:var(--okbg);color:var(--ok);font-weight:700}
.kids{margin:4px 0 8px 15px;border-left:2px dashed #cbd9ef;padding-left:9px}
.kid{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:9px;cursor:pointer;font-size:12.5px;color:#42557a;transition:.13s;position:relative}
.kid:hover{background:#eef4ff}
.kid.cur{background:#dbe8ff;color:var(--ink);font-weight:700}
.kid .bud{width:14px;height:14px;flex:0 0 14px;border-radius:50%;border:2px solid #c3d2ea;background:#fff;transition:.25s;display:flex;align-items:center;justify-content:center;font-size:9px}
.kid.done .bud{background:var(--ok);border-color:var(--ok);color:#fff}
.kid.done{color:#0f7a3f}
.kid.wrong .bud{background:var(--bad);border-color:var(--bad);color:#fff;animation:shake .35s}
.kid .tail{margin-left:auto;font-size:10px;color:var(--dim);opacity:0;transition:.2s}
.kid:hover .tail{opacity:1}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.wrongpool{background:var(--badbg);border:1.5px solid #f6c9d1;border-radius:12px;padding:10px 12px;font-size:12px;color:#a52036;line-height:1.7;margin-top:10px;display:none}
.wrongpool b{color:var(--bad)}

/* stage */
#stage{flex:1;min-width:0;overflow-y:auto;padding:22px 26px 90px;display:flex;flex-direction:column;align-items:center}
#stage::-webkit-scrollbar{width:9px}#stage::-webkit-scrollbar-thumb{background:#cbd9ef;border-radius:5px}
.crumbs{font-size:12.5px;color:var(--dim);margin-bottom:12px;align-self:flex-start}
.crumbs b{color:var(--acc)}
.card{width:min(880px,100%);background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px 30px 24px;box-shadow:var(--sh);animation:pop .3s cubic-bezier(.2,.9,.3,1.15)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tag{font-size:11px;padding:4px 11px;border-radius:20px;background:var(--acc2);color:var(--acc);font-weight:700}
.tag.audio{background:#ffeede;color:#c25a12}
.tag.img{background:#ece4ff;color:var(--c1)}
.tag.hard{background:var(--goldbg);color:#a06f00}
.q{font-size:21px;line-height:1.68;font-weight:700;margin-bottom:6px}
.qsub{font-size:13px;color:var(--dim);line-height:1.7;margin-bottom:14px}

/* score zoom */
.zoomwrap{position:relative;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;margin:12px 0 16px;box-shadow:0 4px 14px rgba(29,43,69,.07)}
.zoomwrap img{display:block;width:100%;height:auto}
.mbox{position:absolute;border:4px solid var(--gold);border-radius:8px;background:rgba(255,214,102,.16);box-shadow:0 0 0 4px rgba(232,164,17,.30),0 0 26px rgba(232,164,17,.45);animation:breathe 1.9s ease-in-out infinite}
.zoomwrap.incrop{border:0;box-shadow:none;border-radius:0;margin:0}
@keyframes breathe{0%,100%{box-shadow:0 0 0 3px rgba(232,164,17,.28)}50%{box-shadow:0 0 0 7px rgba(232,164,17,.14)}}

/* audio */
.aud{display:flex;align-items:center;gap:12px;background:linear-gradient(90deg,#fff3e4,#fffaf3);border:1.5px solid #ffd9ab;border-radius:14px;padding:13px 16px;margin:12px 0 16px}
.play{width:46px;height:46px;flex:0 0 46px;border-radius:50%;border:0;background:var(--c2);color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s;font-family:inherit}
.play:hover{transform:scale(1.07);background:#d1601f}
.play.playing{background:var(--ok)}
.aud .lbl{flex:1;font-size:13px;line-height:1.6;color:#8a4d13}
.aud .lbl b{display:block;font-size:13.5px;color:#6d3a08}
.audinput{position:absolute;left:-9999px}

/* options */
.opts{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.opt{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:13px;background:#f8fbff;border:2px solid var(--line);cursor:pointer;font-size:15.5px;line-height:1.6;transition:.14s;font-family:inherit;color:var(--ink);text-align:left;width:100%}
.opt:hover:not(.locked){border-color:var(--acc);background:#eef4ff;transform:translateX(4px)}
.opt .k{flex:0 0 27px;height:27px;border-radius:8px;background:#dde7f7;color:#4a628a;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.opt.right{border-color:var(--ok);background:var(--okbg)}
.opt.right .k{background:var(--ok);color:#fff}
.opt.wrong{border-color:var(--bad);background:var(--badbg);animation:shake .3s}
.opt.wrong .k{background:var(--bad);color:#fff}
.opt.locked{cursor:default}
.opt .mk{margin-left:auto;font-size:17px}

/* order */
.bank{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0}
.chip{padding:11px 16px;border-radius:12px;background:#fff;border:2px solid var(--line);cursor:pointer;font-size:14.5px;font-family:inherit;color:var(--ink);transition:.14s}
.chip:hover{border-color:var(--acc);background:#eef4ff}
.chip.used{opacity:.25;pointer-events:none}
.slots{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.slot{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:12px;border:2px dashed #c3d2ea;background:#f7faff;font-size:14.5px;min-height:46px}
.slot .no{width:22px;height:22px;flex:0 0 22px;border-radius:50%;background:#dde7f7;color:#4a628a;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center}
.slot.filled{border-style:solid;border-color:var(--acc);background:var(--acc2)}
.slot.ok{border-color:var(--ok);background:var(--okbg)}
.slot.no2{border-color:var(--bad);background:var(--badbg)}
.slot .del{margin-left:auto;color:var(--dim);cursor:pointer;font-size:15px;padding:0 4px}
.slot .del:hover{color:var(--bad)}

/* match */
.mwrap{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
.mcol{display:flex;flex-direction:column;gap:9px}
.mcol h5{margin:0 0 2px;font-size:12px;color:var(--dim);font-weight:700}
.mi{padding:12px 14px;border-radius:12px;background:#f8fbff;border:2px solid var(--line);cursor:pointer;font-size:14.5px;font-family:inherit;color:var(--ink);text-align:left;transition:.14s}
.mi:hover{border-color:var(--acc)}
.mi.sel{border-color:var(--gold);background:var(--goldbg)}
.mi.paired{border-color:var(--ok);background:var(--okbg);opacity:.85;pointer-events:none}
.mi.bad{border-color:var(--bad);background:var(--badbg);animation:shake .3s}

/* tap */
.taprow{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}
.tapb{width:92px;height:92px;border-radius:18px;border:2px solid var(--line);background:#f8fbff;cursor:pointer;font-size:19px;font-weight:800;color:#4a628a;font-family:inherit;transition:.12s;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.tapb small{font-size:10px;font-weight:600;color:var(--dim)}
.tapb.beat1{background:linear-gradient(160deg,#fff0d8,#ffe0b0);border-color:var(--gold);color:#8a5a00}
.tapb.beat23{background:#eef4ff;border-color:#b9cdf0;color:#3c5b96}
.tapb.hit{transform:scale(.93);box-shadow:0 0 0 6px rgba(47,111,237,.18)}
.beatdots{display:flex;gap:8px;justify-content:center;margin:10px 0}
.bd{width:14px;height:14px;border-radius:50%;background:#dde7f7;transition:.15s}
.bd.on{background:var(--c2);transform:scale(1.25)}

/* cloze */
.blanks{display:flex;flex-direction:column;gap:11px;margin:14px 0}
.blk{display:flex;align-items:center;gap:12px}
.blk .lb{font-size:12px;color:var(--dim);font-weight:700;flex:0 0 64px}
.blk input{flex:1;padding:12px 14px;border-radius:12px;border:2px solid var(--line);font-size:15.5px;font-family:inherit;background:#f8fbff;color:var(--ink);outline:none;transition:.15s}
.blk input:focus{border-color:var(--acc);background:#fff}
.blk input.ok{border-color:var(--ok);background:var(--okbg)}
.blk input.no{border-color:var(--bad);background:var(--badbg)}
.blk .hint{font-size:11.5px;color:var(--dim);flex:0 0 auto;max-width:150px}

/* recall */
.recall{background:var(--goldbg);border:2px solid #f2d79a;border-radius:14px;padding:14px 16px;margin:12px 0}
.recall .rl{font-size:12.5px;color:#8a6100;font-weight:700;margin-bottom:8px}
.recall textarea{width:100%;min-height:74px;border-radius:12px;border:2px solid #f2d79a;padding:11px 13px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink);outline:none;resize:vertical}
.recall textarea:focus{border-color:var(--gold)}
.grade{display:flex;gap:10px;margin-top:11px;flex-wrap:wrap}
.gbtn{padding:10px 18px;border-radius:11px;border:2px solid var(--line);background:#fff;cursor:pointer;font-family:inherit;font-size:14px;font-weight:700;color:var(--ink);transition:.14s}
.gbtn.g1:hover{border-color:var(--bad);color:var(--bad);background:var(--badbg)}
.gbtn.g2:hover{border-color:var(--ok);color:var(--ok);background:var(--okbg)}

/* feedback */
.fb{margin-top:16px;padding:15px 18px;border-radius:14px;font-size:14.5px;line-height:1.8;animation:pop .25s}
.fb.ok{background:var(--okbg);border-left:5px solid var(--ok);color:#0b6b36}
.fb.no{background:var(--badbg);border-left:5px solid var(--bad);color:#9c1f33}
.fb h4{margin:0 0 6px;font-size:14.5px;display:flex;align-items:center;gap:7px}
.fb .extra{margin-top:9px;padding-top:9px;border-top:1px dashed rgba(0,0,0,.13);font-size:13.5px;line-height:1.75}
.fb .won{display:inline-block;margin-top:8px;font-size:12px;font-weight:800;background:var(--gold);color:#fff;padding:3px 10px;border-radius:20px}

/* actions */
.acts{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;align-items:center}
.btn{padding:11px 20px;border-radius:12px;border:0;background:var(--acc);color:#fff;font-family:inherit;font-size:14.5px;font-weight:700;cursor:pointer;transition:.15s}
.btn:hover{background:#1f59d0;transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--dim);border:2px solid var(--line)}
.btn.ghost:hover{color:var(--acc);border-color:var(--acc);background:#fff;transform:none}
.btn.warm{background:var(--c2)}
.btn.warm:hover{background:#d1601f}
.done-big{font-size:15px;font-weight:800;color:var(--ok);display:flex;align-items:center;gap:8px}
.hidden{display:none!important}
@media(max-width:900px){
 #mapwrap{width:250px;flex:0 0 250px}
 .q{font-size:18.5px}
 .card{padding:20px 18px 18px}
 header .ttl small{display:none}
}
</style>