:root{--ink:#17231d;--muted:#6b756f;--green:#176b45;--pale:#eef5f0;--line:#dce5df;--red:#b43b35;--cream:#f7f6f0}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif}header{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5vw}.brand{display:flex;gap:12px;align-items:center}.brand b{font-size:20px}.brand small{display:block;color:var(--muted);margin-top:3px}.mark{display:grid;place-items:center;width:42px;height:42px;background:var(--green);color:#fff;border-radius:12px;font-family:serif;font-size:23px}.stats{display:flex;gap:28px;color:var(--muted)}.stats b{color:var(--green);margin-left:5px}main{display:grid;grid-template-columns:240px minmax(0,820px);gap:44px;max-width:1180px;margin:38px auto;padding:0 24px}aside{display:flex;flex-direction:column;gap:8px}.nav,.ghost,.primary,.flag{border:0;border-radius:10px;padding:12px 14px;font-size:15px;cursor:pointer}.nav{text-align:left;background:transparent;color:var(--ink)}.nav.active{background:var(--green);color:#fff}.nav i{float:right;background:#fff;color:var(--green);border-radius:99px;padding:1px 7px;font-style:normal}aside hr{border:0;border-top:1px solid var(--line);width:100%;margin:18px 0 10px}label{font-size:13px;color:var(--muted);margin:5px 0}select{width:100%;margin-top:7px;border:1px solid var(--line);background:#fff;padding:10px;border-radius:8px;color:var(--ink)}.workspace{min-width:0}article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 36px;box-shadow:0 10px 35px #314a3a0c}.qtop{display:flex;align-items:center;gap:12px;color:var(--muted)}.pill{background:var(--pale);color:var(--green);font-weight:600;padding:5px 9px;border-radius:6px}.flag{margin-left:auto;background:transparent;color:var(--muted);padding:7px}.flag.on{color:#a56a00;background:#fff7db}h1{font-size:22px;line-height:1.65;margin:28px 0 22px}.options{display:grid;gap:11px}.option{display:flex;gap:13px;align-items:flex-start;border:1px solid var(--line);padding:14px 16px;border-radius:11px;cursor:pointer;line-height:1.55}.option:hover{border-color:#8bb29c}.option.selected{border-color:var(--green);background:var(--pale)}.option.correct{border-color:var(--green);background:#edf8f1}.option.wrong{border-color:var(--red);background:#fff0ef}.letter{font-weight:700;color:var(--green);min-width:20px}.primary{background:var(--green);color:#fff}.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}#submit{margin-top:20px}.result{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.verdict-ok{color:var(--green);font-size:19px;font-weight:700}.verdict-bad{color:var(--red);font-size:19px;font-weight:700}.answerline{margin-top:10px}details{background:#f7faf8;border-radius:10px;padding:13px 16px;margin-top:16px}summary{color:var(--green);font-weight:600;cursor:pointer}blockquote{margin:12px 0;border-left:3px solid #86ab96;padding-left:13px;color:#45534b;white-space:pre-line}#sourceLine{font-size:13px;color:var(--muted)}.actions{display:flex;justify-content:space-between;margin-top:30px}.hidden{display:none!important}.empty{text-align:center;padding:70px 30px;color:var(--muted)}footer{text-align:center;color:var(--muted);font-size:12px;padding:10px 0 30px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.card{padding:20px;background:var(--pale);border-radius:12px}.card b{font-size:28px;color:var(--green);display:block;margin-top:8px}.bar{height:8px;background:#e7ece9;border-radius:5px;overflow:hidden;margin-top:8px}.bar i{display:block;height:100%;background:var(--green)}@media(max-width:760px){header{padding:0 16px}.stats span:first-child{display:none}.stats{gap:10px;font-size:12px}main{display:block;margin:18px auto;padding:0 12px}aside{display:grid;grid-template-columns:1fr 1fr;margin-bottom:15px}aside label,aside hr,#resetFilters{display:none}article{padding:22px 18px}.qtop{font-size:13px}h1{font-size:19px}.cards{grid-template-columns:1fr}}
.question-source{margin:-14px 0 20px;color:var(--muted);font-size:13px;line-height:1.5}.flag:disabled{cursor:default;opacity:1}
.pill.review{background:#fff1d6;color:#9a5a00}.jump{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:13px}.jump input{width:76px;border:1px solid var(--line);border-radius:8px;padding:10px 8px;color:var(--ink);text-align:center}.jump input:focus{outline:2px solid #b7d4c3;border-color:var(--green)}
@media(max-width:760px){.actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.jump{grid-column:1/-1;grid-row:1}.actions>button{width:100%}}
.back-list{border:0;background:transparent;color:var(--green);padding:5px 0;cursor:pointer;font-size:14px}.wrong-list-head h1{margin:0}.wrong-list-head p{margin:7px 0 20px;color:var(--muted)}.wrong-rows{border-top:1px solid var(--line)}.wrong-row{width:100%;display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;align-items:center;border:0;border-bottom:1px solid var(--line);background:#fff;padding:14px 8px;text-align:left;cursor:pointer;color:var(--ink)}.wrong-row:hover{background:var(--pale)}.wrong-row-type{color:var(--green);font-size:13px;font-weight:700}.wrong-row-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.5}.wrong-pager{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:24px;color:var(--muted);font-size:14px}.wrong-pager button:disabled{opacity:.4;cursor:default}@media(max-width:760px){.wrong-row{grid-template-columns:62px minmax(0,1fr);padding:13px 4px}.wrong-list-head h1{font-size:22px}.wrong-pager{gap:10px}}
.data-transfer{display:grid;gap:8px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}.data-transfer b{font-size:13px;color:var(--ink)}.data-transfer .ghost{padding:9px 10px;font-size:13px}.data-transfer small{color:var(--muted);font-size:11px;line-height:1.45}.data-transfer small.error{color:var(--red)}@media(max-width:760px){.data-transfer{grid-column:1/-1;grid-template-columns:1fr 1fr;margin-top:5px;padding-top:12px}.data-transfer b,.data-transfer small{grid-column:1/-1}}
.sync-panel{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:9px;align-items:center;margin-top:10px;padding:11px 10px;border:1px solid var(--line);border-radius:10px;background:#fff}.sync-panel b,.sync-panel small{display:block}.sync-panel b{font-size:12px;line-height:1.35}.sync-panel small{font-size:10px;color:var(--muted);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sync-dot{width:9px;height:9px;border-radius:50%;background:#b5bdb8;box-shadow:0 0 0 3px #edf0ee}.sync-panel.syncing .sync-dot{background:#b9851d;box-shadow:0 0 0 3px #fff3d9}.sync-panel.synced .sync-dot{background:var(--green);box-shadow:0 0 0 3px #e2f1e8}.sync-panel.offline .sync-dot,.sync-panel.error .sync-dot{background:var(--red);box-shadow:0 0 0 3px #fae4e2}.sync-now{border:0;background:transparent;color:var(--green);font-size:12px;padding:5px 2px;cursor:pointer}.sync-now:disabled{color:var(--muted);cursor:default}@media(max-width:760px){header{padding-top:env(safe-area-inset-top);height:calc(76px + env(safe-area-inset-top))}.sync-panel{grid-column:1/-1;margin-top:4px}footer{padding-bottom:calc(30px + env(safe-area-inset-bottom))}}