/* 拾技学堂 · 视觉：靛紫主色 + 向日葵黄点缀，浅薰衣草底，圆角 20 的柔和卡片 */
:root{
  --brand:#5B4CF0;--brand-t:#4F3FE6;--brand-soft:#C9C2FF;--on-brand:#fff;--sun:#FFB930;--mint:#16B67F;--red:#F2555A;--blue:#2F7BF6;
  --bg:#F3F3FA;--card:#fff;--sheet:#fff;--ink:#1A1B2E;--ink2:#4A4C66;--muted:#8C8EA6;--line:rgba(26,27,46,.07);--line-s:rgba(26,27,46,.1);--line2:rgba(60,60,90,.2);
  --fill:rgba(110,110,160,.1);--nav-bg:rgba(245,245,251,.86);--alert:rgba(247,247,251,.96);--tab-off:#A2A4BA;
  --stage:linear-gradient(140deg,#F4F1FF 0%,#ECEBFF 45%,#FFF7E8 100%);--stage-ink:#1F1B3A;--tag-bg:rgba(91,76,240,.1);--tag-ink:#5B4CF0;--jump-bg:rgba(255,255,255,.72);--jump-line:rgba(91,76,240,.14);--stage-line:rgba(91,76,240,.16);--stage-line2:rgba(91,76,240,.12);
  --bezel:#1c1b24;--bezel2:#3a3946;--ok-bg:rgba(22,182,127,.1);--bad-bg:rgba(242,85,90,.09);
}
[data-theme=dark]{
  --brand:#7667FF;--brand-t:#9A8FFF;--brand-soft:#3A3570;--sun:#FFC24D;--mint:#2BC990;--red:#FF6B70;
  --bg:#0E0E16;--card:#1A1A26;--sheet:#1C1C29;--ink:#EDEDF7;--ink2:#B4B5CC;--muted:#76778F;--line:rgba(255,255,255,.07);--line-s:rgba(255,255,255,.1);--line2:rgba(255,255,255,.14);
  --fill:rgba(255,255,255,.07);--nav-bg:rgba(16,16,24,.86);--alert:rgba(40,40,54,.96);--tab-off:#6B6C84;
  --stage:linear-gradient(140deg,#15132A 0%,#100F1D 55%,#1A1610 100%);--stage-ink:#EDEBFA;--tag-bg:rgba(118,103,255,.16);--tag-ink:#A99FFF;--jump-bg:rgba(255,255,255,.05);--jump-line:rgba(255,255,255,.1);--stage-line:rgba(160,150,255,.14);--stage-line2:rgba(160,150,255,.1);
  --ok-bg:rgba(43,201,144,.12);--bad-bg:rgba(255,107,112,.12);
}
body{background:var(--stage)}
.muted{color:var(--muted);font-size:12.5px;font-weight:400}
.ic.fill{fill:currentColor}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:42px;padding:0 18px;border-radius:14px;font-size:15px;font-weight:600;white-space:nowrap;transition:transform .12s,opacity .2s}
.btn:active{transform:scale(.97)}
.btn.lg{height:50px;font-size:16px;border-radius:16px;padding:0 22px;display:inline-flex;flex-wrap:nowrap;align-items:center;justify-content:center}
.btn.sm{height:34px;font-size:13.5px;padding:0 14px;border-radius:11px}
.btn.full{width:100%;display:flex}.btn.grow{flex:1}
.btn.primary{background:linear-gradient(135deg,#6E5FFF,#5140EC);color:#fff;box-shadow:0 10px 22px -12px rgba(81,64,236,.9)}
.btn.primary[disabled]{opacity:.4;box-shadow:none}
.btn.ghost{background:var(--fill);color:var(--ink)}
.btn.ghost[disabled]{opacity:.4}
.btn-o{display:inline-flex;align-items:center;gap:3px;height:30px;padding:0 12px;border-radius:99px;border:1.5px solid var(--brand);color:var(--brand-t);font-size:13px;font-weight:600;white-space:nowrap;flex:none}
.btn-o.on{border-color:var(--line2);color:var(--muted)}
.card{margin:0 16px 12px;background:var(--card);border-radius:20px;padding:16px;box-shadow:0 1px 3px rgba(40,40,90,.04)}
.card.flush{padding:0;overflow:hidden}
.c-hd{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.c-hd b{font-size:16px;display:flex;align-items:center;gap:6px}
.c-hd.sm{margin:16px 0 8px}.c-hd.sm b{font-size:14.5px}
.seg{display:flex;background:var(--fill);border-radius:12px;padding:3px;gap:2px}
.seg button{flex:1;height:32px;border-radius:9px;font-size:14px;font-weight:500;color:var(--ink2);white-space:nowrap;transition:.2s}
.seg button.on{background:var(--card);color:var(--ink);font-weight:600;box-shadow:0 1px 4px rgba(20,20,60,.1)}
[data-theme=dark] .seg button.on{background:#2E2D44}
.seg.xs{margin-left:auto}.seg.xs button{height:26px;padding:0 8px;font-size:12px;flex:none}
.bar{height:6px;border-radius:3px;background:var(--fill);overflow:hidden;flex:1}
.bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#7B6BFF,#5140EC)}
.sec-row{display:flex;align-items:baseline;gap:8px;padding:20px 20px 10px}
.sec-row b{font-size:18px;font-weight:700}.sec-row small{font-size:12.5px;color:var(--muted)}
.empty{text-align:center;padding:36px 30px}
.empty h3{margin:10px 0 6px;font-size:17px}.empty p{margin:0 0 18px;font-size:13.5px;color:var(--muted)}
.empty-s{display:flex;flex-direction:column;align-items:center;gap:8px;padding:34px 20px;color:var(--muted);font-size:13.5px;text-align:center}
.empty-s p{margin:0}
.switch{position:relative;width:51px;height:31px;border-radius:16px;background:rgba(120,120,140,.2);transition:.25s;flex:none}
.switch i{position:absolute;left:2px;top:2px;width:27px;height:27px;border-radius:50%;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.2);transition:.25s}
.switch.on{background:var(--mint)}.switch.on i{left:22px}
.stars{display:inline-flex;gap:1px;color:#FFB930}.stars .ic:not(.fill){color:var(--line2)}
.qtype{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:7px;font-size:12px;font-weight:700;color:var(--brand-t);background:rgba(91,76,240,.1)}
.qtype.sm{height:20px;font-size:11px;padding:0 6px}
.chk{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink2)}
.chk input{accent-color:var(--brand);width:16px;height:16px}
.eq{display:inline-flex;align-items:flex-end;gap:2px;height:14px;font-style:normal}
.eq b{width:3px;border-radius:2px;background:var(--brand);animation:eq 1s ease-in-out infinite}
.eq b:nth-child(2){animation-delay:-.4s}.eq b:nth-child(3){animation-delay:-.7s}
@keyframes eq{0%,100%{height:4px}50%{height:14px}}

/* ---------- 首页 ---------- */
.homepg .pg-body{padding-bottom:20px}
.home-hd{padding:calc(var(--sb) + 8px) 20px 6px;background:linear-gradient(180deg,rgba(123,107,255,.16),rgba(123,107,255,0))}
.hh-top{display:flex;align-items:center;justify-content:space-between}
.hh-top small{font-size:13.5px;color:var(--ink2)}
.hh-top h1{margin:2px 0 0;font-size:28px;font-weight:800;letter-spacing:.3px}
.hh-av{border-radius:50%;box-shadow:0 0 0 3px var(--card),0 6px 14px -6px rgba(60,40,160,.4)}
.hh-av svg{display:block;border-radius:50%}
.search{display:flex;align-items:center;gap:8px;width:100%;height:44px;margin-top:14px;padding:0 14px;border-radius:14px;background:var(--card);color:var(--muted);font-size:14px;box-shadow:0 4px 16px -10px rgba(60,40,160,.3)}
.goal-strip{display:flex;align-items:center;gap:12px;margin:14px 16px 12px;padding:12px 14px;border-radius:18px;background:var(--card);cursor:pointer}
.gs-fire{display:flex;align-items:baseline;gap:2px;color:#FF7A2F;flex:none}
.gs-fire .ic{align-self:center}.gs-fire b{font-size:22px;font-weight:800}.gs-fire small{font-size:12px;color:var(--muted)}
.gs-m{flex:1;min-width:0}.gs-m b{font-size:13.5px;font-weight:600;display:block;margin-bottom:6px}
.gs-bar{height:6px;border-radius:3px;background:var(--fill);overflow:hidden}.gs-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#FFB930,#FF7A2F)}
.gs-v{font-size:17px;font-weight:700}.gs-v small{font-size:12px;color:var(--muted);font-weight:500}
.goal-strip>.ic{color:var(--muted)}
.cont{display:flex;gap:12px;align-items:center;margin:0 16px;padding:12px;border-radius:20px;background:linear-gradient(135deg,#2C2560,#1C1840);color:#fff;cursor:pointer;box-shadow:0 14px 30px -18px rgba(40,30,120,.8)}
.cont-cv{position:relative;width:132px;height:74px;border-radius:12px;overflow:hidden;flex:none}
.cont-cv svg{display:block}
.cont-play{position:absolute;inset:0;margin:auto;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--brand);display:grid;place-items:center;padding-left:2px}
.cont-m{flex:1;min-width:0}
.cont-m small{display:block;font-size:11.5px;color:rgba(255,255,255,.6);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cont-m b{display:block;font-size:15px;margin:4px 0 8px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cont-p{display:flex;align-items:center;gap:8px}.cont-p .bar{background:rgba(255,255,255,.16)}.cont-p .bar i{background:#FFD166}
.cont-p span{font-size:11px;color:rgba(255,255,255,.65)}
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px 6px;padding:20px 12px 4px}
.cats button{display:flex;flex-direction:column;align-items:center;gap:6px}
.cats span{width:50px;height:50px;border-radius:16px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--a),var(--b));box-shadow:0 8px 16px -10px var(--a);transition:.2s}
.cats small{font-size:12.5px;color:var(--ink2)}
.cats button.on span{box-shadow:0 0 0 3px var(--bg),0 0 0 5px var(--a)}
.cats button.on small{color:var(--ink);font-weight:700}
.recs{display:flex;gap:12px;overflow-x:auto;padding:0 16px 4px;scroll-padding-inline:16px;scroll-snap-type:x mandatory;scrollbar-width:none}
.recs::-webkit-scrollbar{display:none}
.rec{flex:none;width:220px;text-decoration:none;color:inherit;scroll-snap-align:start}
.rec-cv{position:relative;height:124px;border-radius:16px;overflow:hidden}
.rec-cv svg{display:block}
.free{position:absolute;left:10px;top:10px;height:22px;padding:0 8px;border-radius:7px;font-size:12px;font-weight:700;background:#FFD166;color:#3A2A00;display:flex;align-items:center}
.rec b{display:block;font-size:14.5px;margin:8px 2px 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rec small{font-size:12px;color:var(--muted);margin-left:2px}
.sorts{margin-left:auto;display:flex;gap:2px}
.sorts button{height:26px;padding:0 9px;border-radius:8px;font-size:12.5px;color:var(--muted)}
.sorts button.on{background:var(--card);color:var(--ink);font-weight:600}
.clr{display:inline-flex;align-items:center;gap:2px;height:24px;padding:0 8px;border-radius:99px;background:rgba(91,76,240,.1);color:var(--brand-t);font-size:12px}
.clist{margin:0 16px;background:var(--card);border-radius:20px;overflow:hidden}
.crow{display:flex;gap:12px;padding:12px;text-decoration:none;color:inherit;position:relative}
.crow+.crow::before{content:"";position:absolute;top:0;left:148px;right:0;border-top:.5px solid var(--line)}
.crow-cv{position:relative;width:124px;height:70px;border-radius:12px;overflow:hidden;flex:none}
.crow-cv svg{display:block}
.cert-b{position:absolute;right:6px;bottom:6px;display:flex;align-items:center;gap:2px;height:18px;padding:0 5px;border-radius:5px;background:rgba(0,0,0,.35);color:#fff;font-size:10.5px;backdrop-filter:blur(4px)}
.crow-m{flex:1;min-width:0;display:flex;flex-direction:column}
.crow-m b{font-size:14.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.crow-m small{font-size:12px;color:var(--muted);margin-top:3px}
.crow-f{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:12px;color:var(--muted)}
.price{color:#F0663C;font-weight:800;font-size:15px}
.mine{color:var(--brand-t);font-weight:700;font-size:12.5px}
.crow-f .rt{display:flex;align-items:center;gap:2px;color:#E09A00;font-weight:600}
.end-tip{text-align:center;font-size:12px;color:var(--muted);padding:18px 0 4px}
.sheet.tall{height:80%}
.srch{padding:0 16px 16px}
.s-in{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;border-radius:12px;background:var(--fill);color:var(--muted)}
.s-in input{flex:1;border:0;outline:none;background:none;font-size:15px;color:var(--ink)}
.s-hot{margin-top:16px}.s-hot small{font-size:13px;color:var(--muted)}
.s-hot div{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.s-hot button{height:32px;padding:0 14px;border-radius:99px;background:var(--fill);font-size:13.5px}
.s-hot[hidden]{display:none}
.s-cnt{font-size:12.5px;color:var(--muted);margin:14px 0 4px}
.s-row{display:flex;gap:12px;align-items:center;padding:10px 0;text-decoration:none;color:inherit;border-bottom:.5px solid var(--line)}
.s-row svg{border-radius:8px;flex:none}
.s-row div{min-width:0}.s-row b{display:block;font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.s-row b em{font-style:normal;color:var(--brand-t)}
.s-row small{display:block;font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 课程详情 ---------- */
.cdpg .nv{position:absolute;left:0;right:0;top:0}
.cdpg .nv-t{opacity:0}.cdpg.scrolled .nv-t{opacity:1}
.cdpg:not(.scrolled) .nv-back,.cdpg:not(.scrolled) .nv-btn{color:#fff;background:rgba(0,0,0,.22);backdrop-filter:blur(8px);border-radius:50%;width:36px;height:36px;justify-content:center;margin:0 3px}
.cdpg:not(.scrolled) .nv-back{margin-left:4px}
.cdpg .pg-body{padding-bottom:20px}
.cd-hero{position:relative;height:250px;overflow:hidden}
.cd-hero svg{display:block}
.cd-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.28) 0%,rgba(0,0,0,0) 40%)}
.cd-main{position:relative;margin:-26px 0 0;padding:18px 20px 16px;border-radius:24px 24px 0 0;background:var(--bg)}
.cd-tags{display:flex;gap:6px;flex-wrap:wrap}
.cd-tags span{height:22px;padding:0 8px;border-radius:7px;font-size:12px;font-weight:600;background:var(--fill);color:var(--ink2);display:inline-flex;align-items:center;gap:3px}
.cd-tags span[style]{background:color-mix(in srgb,var(--c) 12%,transparent);color:var(--c)}
[data-theme=dark] .cd-tags span[style]{color:#B5ACFF}
.cd-tags .ct{background:rgba(255,185,48,.16);color:#B37A00}
[data-theme=dark] .cd-tags .ct{color:#FFC24D}
.cd-main h2{margin:10px 0 8px;font-size:22px;line-height:1.35}
.cd-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.cd-meta .rt{display:flex;align-items:center;gap:3px;color:#E09A00}.cd-meta .rt b{font-size:15px}
.cd-prog{display:flex;align-items:center;gap:12px;margin-top:14px;padding:12px 14px;border-radius:16px;background:var(--card)}
.cd-prog small{font-size:11.5px;color:var(--muted);display:block}.cd-prog b{font-size:20px;font-weight:800;color:var(--brand-t)}
.cd-prog>small{flex:none}
.teacher{display:flex;align-items:center;gap:12px;margin-top:14px}
.teacher svg{border-radius:50%;flex:none}
.teacher div{flex:1;min-width:0}.teacher b{display:block;font-size:15px}.teacher small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.cd-seg{position:sticky;top:94px;z-index:5;padding:4px 16px 12px;background:var(--bg)}
.toc{padding:0 16px}
.chap{background:var(--card);border-radius:18px;margin-bottom:10px;overflow:hidden}
.ch-hd{display:flex;align-items:center;gap:12px;width:100%;padding:14px;text-align:left}
.ch-no{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:14px;font-weight:800;background:rgba(91,76,240,.1);color:var(--brand-t);flex:none}
.ch-hd div{flex:1;min-width:0}.ch-hd b{display:block;font-size:15px}.ch-hd small{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.ch-hd .chev{color:var(--muted);transition:transform .25s}
.chap.open .chev{transform:rotate(180deg)}
.ch-bd{display:none;padding:0 8px 8px}
.chap.open .ch-bd{display:block}
.ls{display:flex;align-items:center;gap:10px;padding:10px 8px;border-radius:12px;text-decoration:none;color:inherit}
.ls:active{background:var(--fill)}
.ls-ic{width:24px;display:grid;place-items:center;color:var(--muted);flex:none}
.ls div{flex:1;min-width:0}.ls b{display:block;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ls small{font-size:11.5px;color:var(--muted)}
.ls.cur{background:rgba(91,76,240,.07)}.ls.cur b{color:var(--brand-t);font-weight:600}
.ls.locked b{color:var(--muted)}
.ls-st{font-size:12px;flex:none}.ls-st.done{color:var(--mint)}.ls-st.pr{color:var(--brand-t);font-weight:600}.ls-st.lock{color:var(--muted)}
.ls-st.try{height:20px;padding:0 6px;border-radius:6px;background:rgba(255,185,48,.16);color:#B37A00;display:flex;align-items:center;font-weight:600}
.ch-quiz{display:flex;align-items:center;gap:8px;margin:4px 0 0;padding:11px 10px;border-radius:12px;background:var(--fill);text-decoration:none;color:var(--ink);font-size:13.5px;font-weight:600}
.ch-quiz>.ic:first-child{color:var(--brand-t)}
.ch-quiz em{margin-left:auto;font-style:normal;font-size:12px;color:var(--muted);font-weight:400}.ch-quiz em b{color:var(--brand-t)}
.ch-quiz>.ic:last-child{color:var(--muted)}
.intro{margin:0;font-size:14px;line-height:1.8;color:var(--ink2)}
.gain{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.gain li{display:flex;gap:8px;font-size:14px;line-height:1.5}.gain .ic{color:var(--mint);margin-top:2px}
.who{display:flex;flex-wrap:wrap;gap:8px}.who span{padding:6px 10px;border-radius:10px;background:var(--fill);font-size:13px;color:var(--ink2)}
.cert-card{display:flex;gap:12px;align-items:flex-start;background:linear-gradient(135deg,rgba(255,185,48,.14),rgba(255,185,48,.04))}
.cc-ic{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#FFB930;color:#fff;flex:none}
.cert-card b{font-size:14.5px}.cert-card small{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:4px}
.rv-sum{display:flex;gap:20px;align-items:center}
.rv-sum>div:first-child{text-align:center;flex:none}.rv-sum>div:first-child>b{font-size:40px;font-weight:800;display:block;line-height:1}
.rv-sum small{font-size:12px;color:var(--muted);display:block;margin-top:4px}
.rv-bars{flex:1;display:grid;gap:5px}
.rv-bars div{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--muted)}
.rv-bars i{flex:1;height:6px;border-radius:3px;background:var(--fill);overflow:hidden}.rv-bars i b{display:block;height:100%;background:#FFB930;border-radius:3px}
.rv-bars em{font-style:normal;width:28px;text-align:right}
.rv{display:flex;gap:10px;padding:14px 16px}
.rv+.rv{border-top:.5px solid var(--line)}
.rv svg.av{border-radius:50%;flex:none}
.rv>div{flex:1;min-width:0}
.rv-h{display:flex;align-items:center;gap:6px}.rv-h b{font-size:13.5px}.rv-h small{margin-left:auto;font-size:11.5px;color:var(--muted)}
.rv p{margin:6px 0 0;font-size:13.5px;line-height:1.6;color:var(--ink2)}
.rv-tag{display:inline-block;margin-top:6px;font-size:11.5px;padding:2px 8px;border-radius:6px;background:rgba(91,76,240,.08);color:var(--brand-t)}
.foot-row{display:flex;gap:10px;align-items:center}
.fr-m{flex:1;min-width:0}
.fr-m small{display:block;font-size:11.5px;color:var(--muted)}
.fr-m b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fr-m b.price{font-size:22px}
.foot-row .btn.ghost{height:50px;border-radius:16px}

/* ---------- 播放页 ---------- */
.playpg{background:var(--bg)}
.p-sb{height:var(--sb);background:#000;flex:none}
.vbox{position:relative;width:100%;aspect-ratio:16/9;background:#0B0B12;overflow:hidden;flex:none;z-index:30;user-select:none;-webkit-user-select:none;touch-action:manipulation}
.vcanvas{position:absolute;left:50%;top:50%;width:640px;height:360px;transform:translate(-50%,-50%) scale(var(--vs,.609));transform-origin:center;overflow:hidden;background:#fff}
.vcap{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);max-width:84%;padding:3px 9px;border-radius:6px;background:rgba(0,0,0,.62);color:#fff;font-size:11.5px;line-height:1.5;text-align:center;z-index:3;pointer-events:none;transition:bottom .25s}
.vcap:empty,.vcap[hidden]{display:none}
.vbox:not(.playing) .vcap,.vbox.ctl .vcap{bottom:42px}
.vtap{position:absolute;top:0;bottom:0;width:50%;z-index:2}.vtap.l{left:0}.vtap.r{right:0}
.vripple{position:absolute;top:0;bottom:0;width:42%;z-index:4;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#fff;font-size:12px;pointer-events:none;opacity:0}
.vripple.l{left:0;border-radius:0 50% 50% 0;background:radial-gradient(circle at 30% 50%,rgba(255,255,255,.22),rgba(255,255,255,0) 70%)}
.vripple.r{right:0;border-radius:50% 0 0 50%;background:radial-gradient(circle at 70% 50%,rgba(255,255,255,.22),rgba(255,255,255,0) 70%)}
.vripple.go{animation:rip .7s ease}
@keyframes rip{0%{opacity:0}20%{opacity:1}100%{opacity:0}}
.vctl{position:absolute;inset:0;z-index:5;background:linear-gradient(180deg,rgba(0,0,0,.5) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 62%,rgba(0,0,0,.6) 100%);opacity:0;transition:opacity .25s;pointer-events:none}
.vctl.show{opacity:1;pointer-events:auto}
.vc-top{position:absolute;left:0;right:0;top:0;display:flex;align-items:center;gap:4px;padding:4px 6px;color:#fff}
.vc-top b{flex:1;font-size:13.5px;visibility:hidden;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vc-b{width:36px;height:36px;display:grid;place-items:center;color:#fff;flex:none;opacity:.95}
.vc-b.on{color:#FFD166}
.vc-big{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:58px;height:58px;border-radius:50%;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);color:#fff;display:grid;place-items:center;border:1.5px solid rgba(255,255,255,.3)}
.vc-big .ic{margin-left:2px}
.vbox.playing .vc-big .ic{margin-left:0}
.vc-bot{position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:2px;padding:0 6px 4px;color:#fff}
.vc-t{font-size:11px;opacity:.95;white-space:nowrap;flex:none;margin-right:6px}
.vc-seek{position:relative;flex:1;height:28px;cursor:pointer;touch-action:none}
.sk-track{position:absolute;left:0;right:0;top:50%;height:3px;margin-top:-1.5px;border-radius:2px;background:rgba(255,255,255,.28)}
.vc-seek.drag .sk-track{height:5px;margin-top:-2.5px}
.sk-buf{position:absolute;left:0;top:0;bottom:0;background:rgba(255,255,255,.35);border-radius:2px}
.sk-fill{position:absolute;left:0;top:0;bottom:0;background:#7B6BFF;border-radius:2px}
.sk-note{position:absolute;top:50%;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;border-radius:50%;background:#FFD166}
.sk-knob{position:absolute;top:50%;width:13px;height:13px;margin:-6.5px 0 0 -6.5px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(123,107,255,.4)}
.sk-tip{position:absolute;bottom:26px;transform:translateX(-50%);padding:3px 8px;border-radius:6px;background:rgba(0,0,0,.75);font-size:12px;opacity:0;pointer-events:none;transition:opacity .15s}
.vc-seek.drag .sk-tip{opacity:1}
.vc-rate{height:26px;padding:0 6px;font-size:12px;font-weight:600;color:#fff;flex:none;margin-left:4px}
.vend{position:absolute;inset:0;z-index:6;background:rgba(10,10,20,.82);backdrop-filter:blur(4px);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.vend[hidden]{display:none}
.vend b{font-size:17px}.vend small{font-size:12px;opacity:.7}
.vend div{display:flex;gap:8px;margin-top:14px}
.vend button{display:flex;align-items:center;gap:4px;height:34px;padding:0 12px;border-radius:99px;background:rgba(255,255,255,.14);font-size:13px;color:#fff}
.vend button.pri{background:var(--brand)}
.vlock{position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;background:rgba(10,10,20,.72);backdrop-filter:blur(6px);color:#fff}
.vlock b{font-size:16px}.vlock small{font-size:12px;opacity:.7;margin-bottom:8px}
.vlock .back{position:absolute;left:6px;top:4px}
/* 全屏：在手机框内横置 */
.vbox.fs{position:absolute;left:50%;top:50%;width:844px;height:390px;aspect-ratio:auto;transform:translate(-50%,-50%) rotate(90deg);z-index:200}
.screen.fs-on .statusbar,.screen.fs-on .homebar{opacity:0}
.vbox.fs .vcap{font-size:15px;bottom:18px}.vbox.fs:not(.playing) .vcap,.vbox.fs.ctl .vcap{bottom:70px}
.vbox.fs .vc-top{padding:14px 40px 0}.vbox.fs .vc-top b{visibility:visible}
.vbox.fs .vc-bot{padding:0 40px 16px}
.vbox.fs .vc-t{font-size:13px}
@media (max-width:600px){.vbox.fs{width:100dvh;height:100vw}}
/* 视频画面：课件幻灯 */
.vs-slide{position:absolute;inset:0;background:linear-gradient(135deg,color-mix(in srgb,var(--c1) 14%,#fff),color-mix(in srgb,var(--c2) 18%,#fff));font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.sl-card{position:absolute;left:30px;top:34px;width:370px;height:292px;border-radius:18px;background:#fff;box-shadow:0 20px 40px -24px rgba(40,30,120,.35);padding:22px 24px;color:#1A1B2E}
.sl-hd{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#8C8EA6}
.sl-hd b{height:24px;padding:0 10px;border-radius:12px;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;display:flex;align-items:center;font-size:13px}
.sl-card h3{margin:12px 0 16px;font-size:24px;line-height:1.3;letter-spacing:.3px}
.sl-card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.sl-card li{display:flex;align-items:center;gap:10px;font-size:15px;color:#3A3C55;opacity:.12;transform:translateX(-8px);transition:all .5s}
.sl-card li i{width:24px;height:24px;border-radius:8px;display:grid;place-items:center;font-style:normal;font-size:13px;font-weight:700;color:#fff;background:var(--c1);flex:none}
.sl-sum{position:absolute;left:24px;right:24px;bottom:20px;display:flex;align-items:center;gap:6px;padding:9px 12px;border-radius:12px;background:#FFF6DD;color:#8A5A00;font-size:13px;opacity:0;transition:opacity .5s}
.s1 .b1,.s2 .b2,.s3 .b3{opacity:1;transform:none}
.s4 .b4{opacity:1}
.sl-art{position:absolute;right:18px;top:60px;width:210px;display:grid;place-items:center;animation:bob 4s ease-in-out infinite;filter:drop-shadow(0 16px 20px rgba(40,30,120,.22))}
.vcanvas:not(.playing) .sl-art,.vcanvas:not(.playing) .fl{animation-play-state:paused}
@keyframes bob{50%{transform:translateY(-8px)}}
.pip{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:6px;padding:4px 12px 4px 4px;border-radius:99px;background:rgba(255,255,255,.92);box-shadow:0 6px 16px -8px rgba(0,0,0,.3);font-size:12px;color:#3A3C55;font-weight:600}
.pip svg{border-radius:50%;display:block}
.v-brand{position:absolute;right:18px;top:12px;font-size:11px;color:rgba(26,27,46,.35);font-weight:700;letter-spacing:2px}
.vs-elec .v-brand{top:62px}/* 让开播放器右上角“更多”按钮 */
/* 视频画面：电能表接线动画 */
.vs-elec{position:absolute;inset:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.vs-elec .elec{width:640px;height:360px;display:block}
.ve-title{position:absolute;left:22px;top:60px;color:#1A1B2E}/* 让开播放器顶部的返回按钮 */
.ve-title small{display:block;font-size:11px;color:#6B7390}.ve-title b{font-size:19px}
.ve-rule{position:absolute;left:22px;top:124px;padding:8px 14px;border-radius:12px;background:#1A1B2E;color:#FFD166;font-size:17px;font-weight:800;letter-spacing:1px;opacity:0;transform:scale(.8);transition:all .4s cubic-bezier(.2,.9,.3,1.3)}
.s4 .ve-rule{opacity:1;transform:none}
.vs-elec .pip{right:auto;left:22px;bottom:auto;top:176px}
.wire{fill:none;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.2s ease}
.wire.L{stroke:#8A4B12}.wire.N{stroke:#2356C4}
.s2 .w1,.s2 .w2,.s3 .w3,.s3 .w4{stroke-dashoffset:0}
.term .hl{fill:#FFD166;opacity:0}
.s1:not(.s2) .term .hl{animation:thl 1.2s ease-in-out infinite}
.s2:not(.s3) .t1 .hl,.s2:not(.s3) .t2 .hl{animation:thl 1.2s ease-in-out infinite}
.s3:not(.s4) .t3 .hl,.s3:not(.s4) .t4 .hl{animation:thl 1.2s ease-in-out infinite}
@keyframes thl{50%{opacity:.7}}
.tagw{opacity:0;transition:opacity .4s .6s}
.s2 .tagw:not(.tw3):not(.tw4){opacity:1}.s3 .tw3,.s3 .tw4{opacity:1}
.handle{transition:transform .4s}
.s5 .handle{transform:translateY(-12px)}
.s5 .led{fill:#FF4D4F;animation:led .8s steps(2) infinite}
@keyframes led{50%{fill:#E6E9F2}}
.ok-badge{opacity:0;transform-origin:560px 96px;transform:scale(.5);transition:all .4s cubic-bezier(.2,.9,.3,1.4)}
.s5 .ok-badge{opacity:1;transform:none}
.vcanvas:not(.playing) .term .hl,.vcanvas:not(.playing) .led{animation-play-state:paused}
/* 视频画面：数控车插补动画 */
.vs-cnc,.vs-fork{position:absolute;inset:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.vs-cnc>svg,.vs-fork>svg{width:640px;height:360px;display:block}
.vs-cnc .pip,.vs-fork .pip{right:auto;left:22px;bottom:16px}
.mv{fill:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:0 9999}
.mv.g0{stroke:#E08A00;stroke-width:2.5}.mv.g1{stroke:#2356C4}.mv.g3{stroke:#C2338A;stroke-width:5}
.blank{transition:opacity .6s}.s5 .blank{opacity:.25}
.cn-part{opacity:0;transition:opacity .8s .3s}.s5 .cn-part{opacity:1}
.cn-r{opacity:0;transition:opacity .4s}.s3 .cn-r{opacity:1}.s5 .cn-r{opacity:0}
.cn-dim{opacity:0;transition:opacity .4s}.s4 .cn-dim{opacity:1}
.cc-code{position:absolute;left:22px;top:70px;width:204px;padding:8px 0 6px;border-radius:12px;background:#1B2140;color:#C9D1EA;font:12.5px/1 Menlo,Consolas,monospace;box-shadow:0 14px 28px -16px rgba(20,24,60,.5)}
.cc-h{display:flex;justify-content:space-between;align-items:center;padding:0 12px 7px;margin-bottom:4px;border-bottom:1px solid rgba(255,255,255,.08);font-size:11px;color:#7CF5B6}.cc-h small{color:#7C86A8;font-family:-apple-system,"PingFang SC",sans-serif}
.cl{padding:5px 12px;white-space:nowrap;transition:background .2s,color .2s}.cl i{font-style:normal}
.cl.dn{color:#6E7797}.cl.on{background:rgba(255,209,102,.16);color:#FFD166;box-shadow:inset 3px 0 #FFD166}
.cc-dro{position:absolute;right:16px;top:40px;display:flex;align-items:center;gap:10px;padding:6px 10px;border-radius:10px;background:#1B2140;color:#8A93AE;font:11px Menlo,Consolas,monospace}
.cc-dro em{font-style:normal;padding:2px 6px;border-radius:5px;background:#FFD166;color:#1B2140;font-weight:700;min-width:28px;text-align:center}
.cc-dro b{color:#7CF5B6;margin-left:4px;display:inline-block;min-width:52px;text-align:right;font-weight:600}
.cc-legend{position:absolute;right:44px;top:74px;display:flex;align-items:center;gap:5px;font-size:10.5px;color:#4A5270}
.cc-legend i{width:14px;height:4px;border-radius:2px;margin-left:6px}.cc-legend .g0{background:#E08A00}.cc-legend .g1{background:#2356C4}.cc-legend .g3{background:#C2338A}
.ok-stamp{position:absolute;right:44px;top:100px;display:flex;align-items:center;gap:5px;padding:6px 12px;border-radius:99px;background:#19B37A;color:#fff;font-size:13px;font-weight:700;opacity:0;transform:scale(.6);transition:all .4s .5s cubic-bezier(.2,.9,.3,1.4)}
.s5 .ok-stamp{opacity:1;transform:none}
/* 视频画面：叉车点检动画 */
.vs-fork .ve-title{top:14px}
.fk{transform-origin:260px 320px}
.beam{opacity:0;transition:opacity .3s}.s4:not(.s5) .beam{opacity:.75}
.beacon{opacity:.5}.s4 .beacon{animation:bcn 1s steps(2) infinite}
@keyframes bcn{50%{opacity:1;fill:#FF4D4F}}
.horn{opacity:0}.s4:not(.s5) .horn{animation:horn 1.2s ease-out infinite}
@keyframes horn{0%{opacity:0}30%{opacity:1}100%{opacity:0}}
.drip{opacity:0;transition:opacity .4s}.s3:not(.s4) .drip{opacity:1}
.hs{opacity:0;transition:opacity .3s}.hs .ring{fill:none;stroke:#FF4D4F;stroke-width:2;transform-box:fill-box;transform-origin:center}
.s1:not(.s2) .h1,.s2:not(.s3) .h2,.s3:not(.s4) .h3,.s4:not(.s5) .h4{opacity:1}
.s1:not(.s2) .h1 .ring,.s2:not(.s3) .h2 .ring,.s3:not(.s4) .h3 .ring,.s4:not(.s5) .h4 .ring{animation:hsr 1.4s ease-out infinite}
@keyframes hsr{0%{transform:scale(1);opacity:.9}100%{transform:scale(1.5);opacity:0}}
.vcanvas:not(.playing) .hs .ring,.vcanvas:not(.playing) .horn,.vcanvas:not(.playing) .beacon{animation-play-state:paused}
.fk-card{position:absolute;right:14px;top:40px;width:212px;padding:10px 10px 8px;border-radius:14px;background:#fff;box-shadow:0 18px 34px -20px rgba(30,40,90,.45);color:#1A1B2E}
.fk-h{display:flex;justify-content:space-between;align-items:baseline;padding:0 2px 6px;border-bottom:1px dashed #D5DAE6;margin-bottom:4px}.fk-h b{font-size:13px}.fk-h small{font-size:10px;color:#8A93AE}
.cr{display:flex;align-items:center;gap:7px;padding:5px 4px;border-radius:8px;opacity:.4;transition:opacity .3s,background .3s}
.cr>i{width:18px;height:18px;border-radius:6px;background:#E8EBF3;color:#6B7390;font-size:10.5px;font-style:normal;font-weight:700;display:grid;place-items:center;flex:none}
.cr>div{flex:1;min-width:0}.cr b{display:block;font-size:12px;line-height:1.25}.cr small{display:block;font-size:10px;color:#8A93AE;line-height:1.3}
.cr .tk{width:18px;height:18px;border-radius:50%;background:#19B37A;color:#fff;display:grid;place-items:center;flex:none;opacity:0;transform:scale(.4);transition:all .35s cubic-bezier(.2,.9,.3,1.4)}
.s1 .cr1,.s2 .cr2,.s3 .cr3,.s4 .cr4,.s5 .cr5{opacity:1}
.s1:not(.s2) .cr1,.s2:not(.s3) .cr2,.s3:not(.s4) .cr3,.s4:not(.s5) .cr4,.s5 .cr5{background:#FFF6DD}
.s1:not(.s2) .cr1>i,.s2:not(.s3) .cr2>i,.s3:not(.s4) .cr3>i,.s4:not(.s5) .cr4>i,.s5 .cr5>i{background:#F0A500;color:#fff}
.s2 .cr1 .tk,.s3 .cr2 .tk,.s4 .cr3 .tk,.s5 .cr4 .tk{opacity:1;transform:none}
.s5 .cr5 .tk{opacity:1;transform:none;transition-delay:1s}
.fk-sign{display:flex;align-items:center;gap:4px;margin-top:4px;padding:6px 4px 0;border-top:1px dashed #D5DAE6;font-size:11px;color:#6B7390;position:relative;height:24px}
.fk-sign em{font-style:italic;font-family:"Kaiti SC","STKaiti",KaiTi,serif;font-size:15px;color:#1A1B2E;opacity:0;transition:opacity .5s .4s}.s5 .fk-sign em{opacity:1}
.fk-sign .stamp{position:absolute;right:6px;top:-2px;padding:2px 8px;border:2px solid #E5484D;border-radius:6px;color:#E5484D;font-weight:800;font-size:13px;letter-spacing:2px;transform:rotate(-12deg) scale(1.8);opacity:0;transition:all .35s 1.2s cubic-bezier(.3,1.4,.5,1)}
.s5 .fk-sign .stamp{opacity:1;transform:rotate(-12deg)}
/* 播放页下方 */
.p-body{background:var(--bg)}
.p-info{padding:16px 20px 12px;background:var(--card)}
.p-info h2{margin:0;font-size:19px;line-height:1.35}
.p-sub{display:flex;align-items:center;gap:3px;margin-top:6px;font-size:12.5px;color:var(--muted)}
.p-sub a{color:var(--brand-t);text-decoration:none;max-width:210px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.p-acts{display:flex;align-items:center;margin-top:14px}
.p-pro{flex:1}.p-pro small{display:block;font-size:11.5px;color:var(--muted)}.p-pro b{font-size:18px;font-weight:800}
.p-acts button{display:flex;flex-direction:column;align-items:center;gap:3px;width:54px;font-size:11px;color:var(--ink2)}
.p-acts button .fill{color:#FFB930}
.p-seg{position:sticky;top:0;z-index:4;padding:10px 16px;background:var(--bg)}
.p-toc{padding:0 16px}
.pt-ch{background:var(--card);border-radius:18px;padding:6px;margin-bottom:10px}
.pt-h{font-size:13px;font-weight:700;padding:10px 10px 6px;color:var(--ink2)}
.pt-l{display:flex;align-items:center;gap:8px;width:100%;padding:10px;border-radius:12px;text-align:left}
.pt-l.on{background:rgba(91,76,240,.08)}.pt-l.on .pt-t{color:var(--brand-t);font-weight:600}
.pt-l.locked{opacity:.55}
.pt-i{width:20px;display:grid;place-items:center;color:var(--muted);flex:none}
.pt-l .ic-circle-check{color:var(--mint)}
.pt-t{flex:1;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pt-l small{font-size:11.5px;color:var(--muted);flex:none}
.pt-q{display:flex;align-items:center;gap:6px;margin:2px 4px 4px;padding:9px 10px;border-radius:10px;background:var(--fill);font-size:13px;color:var(--brand-t);font-weight:600;text-decoration:none}
.pt-q .ic:last-child{margin-left:auto;color:var(--muted)}
.n-comp{margin:0 16px 12px;padding:14px;border-radius:18px;background:var(--card)}
.n-at{display:flex;align-items:center;gap:5px;font-size:12.5px;color:var(--muted);margin-bottom:8px}.n-at b{color:var(--brand-t)}
.n-comp textarea{width:100%;border:1.5px solid var(--line-s);border-radius:12px;padding:10px 12px;font-size:14px;line-height:1.6;background:var(--bg);outline:none;resize:none;transition:.2s}
.n-comp textarea:focus{border-color:var(--brand)}
.n-comp textarea.err{border-color:var(--red);animation:shk .3s}
@keyframes shk{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.n-ft{display:flex;justify-content:space-between;align-items:center;margin-top:8px}.n-ft small{font-size:12px;color:var(--muted)}
.n-list{padding:0 16px}
.note{background:var(--card);border-radius:16px;padding:12px 14px;margin-bottom:10px}
.n-t{display:inline-flex;align-items:center;gap:4px;height:24px;padding:0 9px;border-radius:99px;background:rgba(91,76,240,.1);color:var(--brand-t);font-size:12.5px;font-weight:700}
.note p{margin:8px 0 6px;font-size:14px;line-height:1.6}
.n-m{display:flex;justify-content:space-between;align-items:center}.n-m small{font-size:11.5px;color:var(--muted)}.n-m button{color:var(--muted)}
.doc{margin:0 16px;padding:16px;border-radius:18px;background:var(--card)}
.doc-h{display:flex;align-items:center;gap:6px;color:var(--brand-t)}.doc-h b{color:var(--ink);font-size:15px}.doc-h small{margin-left:auto;color:var(--muted);font-size:12px}
.doc ol{margin:12px 0 0;padding-left:20px;display:grid;gap:8px;font-size:14px;line-height:1.6}
.doc-tip{display:flex;gap:8px;margin-top:14px;padding:10px 12px;border-radius:12px;background:rgba(242,85,90,.08);color:#C2383D;font-size:12.5px;line-height:1.6}
[data-theme=dark] .doc-tip{color:#FF9A9D}
.doc-kp{margin-top:16px;border-top:.5px solid var(--line);padding-top:8px;display:grid}
.doc-kp button{display:flex;gap:10px;text-align:left;padding:8px 0;font-size:13px;line-height:1.55;color:var(--ink2)}
.doc-kp span{flex:none;color:var(--brand-t);font-weight:700;font-size:12.5px;margin-top:1px}

/* ---------- 练习 ---------- */
.qzpg .pg-body{padding-bottom:16px}
.qz-top{padding:6px 20px 14px}
.qz-bar{height:6px;border-radius:3px;background:var(--fill);overflow:hidden}.qz-bar i{display:block;height:100%;background:linear-gradient(90deg,#7B6BFF,#5140EC);border-radius:3px;transition:width .4s}
.qz-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:13px;color:var(--muted)}
.qz-meta b{font-size:18px;color:var(--ink)}
.qsrc{margin-left:auto;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}
.qz-timer{margin-left:auto;display:flex;align-items:center;gap:4px;height:26px;padding:0 10px;border-radius:99px;background:var(--card);color:var(--ink);font-weight:600}
.qz-timer.hot{color:var(--red);background:var(--bad-bg)}
.qz-card{margin:0 16px;padding:20px 16px 18px;border-radius:22px;background:var(--card);box-shadow:0 6px 24px -18px rgba(40,30,120,.4)}
.qz-card.in-next{animation:qin .35s cubic-bezier(.2,.85,.25,1)}
.qz-card.in-prev{animation:qinp .35s cubic-bezier(.2,.85,.25,1)}
@keyframes qin{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:none}}
@keyframes qinp{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:none}}
.stem{margin:0 0 18px;font-size:17px;line-height:1.65;font-weight:600}
.opts{display:grid;gap:10px;margin-bottom:14px}
.opt{display:flex;align-items:center;gap:12px;width:100%;min-height:52px;padding:10px 14px;border-radius:14px;border:1.5px solid var(--line-s);text-align:left;font-size:15px;transition:.2s;background:var(--card)}
.opt:active:not([disabled]){transform:scale(.99)}
.ol{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;background:var(--fill);color:var(--ink2);flex:none;transition:.2s}
.opt.multi .ol{border-radius:8px}
.ot{flex:1;line-height:1.5}
.opt.sel{border-color:var(--brand);background:rgba(91,76,240,.06)}.opt.sel .ol{background:var(--brand);color:#fff}
.opt.right{border-color:var(--mint);background:var(--ok-bg)}.opt.right .ol{background:var(--mint);color:#fff}
.opt.wrong{border-color:var(--red);background:var(--bad-bg)}.opt.wrong .ol{background:var(--red);color:#fff}
.opt.dim{opacity:.55}
.opt[disabled]{cursor:default}
.verdict{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:12px 14px;border-radius:14px;font-size:13px}
.verdict>b{font-size:15px}.verdict span{flex-basis:100%;padding-left:26px;color:var(--ink2)}.verdict span b{color:var(--ink)}
.verdict.ok{background:var(--ok-bg);color:var(--mint)}.verdict.bad{background:var(--bad-bg);color:var(--red)}
.expl{margin-top:12px;padding:14px;border-radius:14px;background:var(--fill)}
.ex-h{display:flex;align-items:center;gap:6px;color:#D08A00}.ex-h b{color:var(--ink);font-size:14.5px}
[data-theme=dark] .ex-h{color:var(--sun)}
.expl p{margin:8px 0 0;font-size:14px;line-height:1.75;color:var(--ink2)}
.ex-w{display:flex;align-items:center;gap:4px;margin-top:10px;font-size:12px;color:var(--brand-t)}
.qsheet{padding:0 20px 16px}
.qs-lg{display:flex;gap:14px;font-size:12px;color:var(--muted);margin-bottom:14px}
.qs-lg span{display:flex;align-items:center;gap:4px}.qs-lg i{width:10px;height:10px;border-radius:3px;background:var(--fill)}
.qs-lg .d-ok{background:var(--mint)}.qs-lg .d-bad{background:var(--red)}.qs-lg .d-cur{background:var(--brand)}
.res-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.res-grid button{aspect-ratio:1;border-radius:12px;background:var(--fill);font-weight:700;font-size:15px;color:var(--ink2)}
.res-grid .ok{background:var(--ok-bg);color:var(--mint)}.res-grid .bad{background:var(--bad-bg);color:var(--red)}
.res-grid .cur{background:var(--brand);color:#fff}.res-grid .ans{background:rgba(91,76,240,.14);color:var(--brand-t)}
.qs-sum{text-align:center;font-size:12.5px;color:var(--muted);margin:14px 0 0}
.respg .pg-body{padding-bottom:30px}
.res-hero{margin:4px 16px 12px;padding:22px 18px 18px;border-radius:24px;text-align:center;color:#fff;background:radial-gradient(120% 90% at 100% 0%,#8C7DFF 0%,rgba(140,125,255,0) 60%),linear-gradient(160deg,#4B3CE0,#2B2270)}
.res-ring{position:relative;width:150px;height:150px;margin:0 auto}
.res-ring svg{display:block}.res-ring .rr{animation:rr 1s ease-out}
@keyframes rr{from{stroke-dasharray:0 999}}
.res-ring>div{position:absolute;inset:0;display:flex;align-items:baseline;justify-content:center;padding-top:50px}
.res-ring b{font-size:44px;font-weight:800;line-height:1}.res-ring small{font-size:14px;opacity:.7;margin-left:2px}
.res-hero h3{margin:8px 0 2px;font-size:19px}.res-hero p{margin:0;font-size:13px;opacity:.75}
.res-kpi{display:grid;grid-template-columns:repeat(3,1fr);margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.14)}
.res-kpi b{display:block;font-size:19px;font-weight:700}.res-kpi small{font-size:11.5px;opacity:.65}
.lgd{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--muted)}.lgd i{width:9px;height:9px;border-radius:3px;margin-left:8px}.lgd .ok{background:var(--mint)}.lgd .bad{background:var(--red)}
.res-acts{display:flex;gap:10px;margin:4px 16px 12px}.res-acts .btn{flex:1;height:48px;border-radius:15px}
.res-wrong{display:flex;align-items:center;gap:8px;margin:0 16px;padding:14px;border-radius:16px;background:var(--card);color:var(--brand-t);text-decoration:none;font-size:14px;font-weight:600}
.res-wrong span{flex:1}.res-wrong .ic:last-child{color:var(--muted)}

/* ---------- 错题本 ---------- */
.wb-hero{display:grid;grid-template-columns:repeat(3,1fr);margin:4px 16px 14px;padding:16px 8px;border-radius:20px;background:linear-gradient(135deg,#FFF1F1,#FFF7EB);text-align:center}
[data-theme=dark] .wb-hero{background:linear-gradient(135deg,#2A1A22,#2A2216)}
.wb-hero div+div{border-left:1px solid rgba(0,0,0,.06)}
.wb-hero b{display:block;font-size:26px;font-weight:800}.wb-hero div:first-child b{color:var(--red)}.wb-hero div:nth-child(2) b{color:var(--mint)}
.wb-hero small{font-size:12px;color:var(--muted)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:0 16px 4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chips button{height:32px;padding:0 14px;border-radius:99px;background:var(--card);font-size:13.5px;color:var(--ink2);white-space:nowrap;flex:none}
.chips button.on{background:var(--brand);color:#fff;font-weight:600}
.wb-f{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;font-size:12.5px;color:var(--muted)}
.wq{margin:0 16px 10px;background:var(--card);border-radius:18px;overflow:hidden}
.wq-h{padding:14px 16px;cursor:pointer}
.wq-tags{display:flex;align-items:center;gap:6px}
.wq-src{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}
.wq-n{font-size:11.5px;font-weight:700;color:var(--red);background:var(--bad-bg);padding:2px 7px;border-radius:6px;flex:none}
.wq-m{display:flex;align-items:center;gap:2px;font-size:11.5px;font-weight:700;color:var(--mint);background:var(--ok-bg);padding:2px 7px;border-radius:6px;flex:none}
.wq-h p{margin:8px 0 0;font-size:15px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wq.open .wq-h p{-webkit-line-clamp:unset;display:block}
.wq.mast{opacity:.7}
.wq-b{padding:0 16px 14px}
.opts.sm{gap:8px}.opts.sm .opt{min-height:42px;font-size:14px;padding:8px 12px}.opts.sm .ol{width:24px;height:24px;font-size:12px}
.wq-acts{display:flex;align-items:center;gap:8px;margin-top:12px}
.wq-acts small{flex:1;font-size:12px;color:var(--muted)}
.wq-acts button{display:flex;align-items:center;gap:4px;height:32px;padding:0 12px;border-radius:10px;background:var(--fill);font-size:13px;color:var(--ink2)}
.wq-acts .pri{background:var(--ok-bg);color:var(--mint);font-weight:600}

/* ---------- 打卡 ---------- */
.ckpg .pg-body{padding-bottom:30px}
.ck-hero{position:relative;display:flex;align-items:center;margin:4px 16px 12px;padding:20px;border-radius:24px;color:#fff;background:radial-gradient(100% 120% at 100% 0%,#FFB347 0%,rgba(255,179,71,0) 55%),linear-gradient(140deg,#5B4CF0,#3A2DB8);overflow:hidden}
.ck-l{flex:1}
.ck-l small{font-size:13px;opacity:.8}
.ck-l div{display:flex;align-items:baseline;gap:4px}.ck-l b{font-size:52px;font-weight:800;line-height:1.1}.ck-l span{font-size:15px;opacity:.85}
.ck-l p{margin:4px 0 0;font-size:12.5px;opacity:.75}
.ck-flame{margin:-10px -6px -14px 0}
.fl{transform-origin:60px 100px;animation:flk 1.6s ease-in-out infinite}
@keyframes flk{50%{transform:scale(1.04,.96) skewX(-2deg)}}
.ck-today{display:flex;align-items:center;gap:14px}
.ring{position:relative;flex:none}
.ring svg{display:block}.ring>div{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring b{font-size:22px;font-weight:800;line-height:1}.ring small{font-size:10.5px;color:var(--muted);margin-top:2px}
.ckt-m{flex:1;min-width:0}
.ckt-m b{display:block;font-size:15px}.ckt-m small{display:block;font-size:12px;color:var(--muted);margin:3px 0 8px}
.goal-btn{display:inline-flex;align-items:center;gap:3px;height:26px;padding:0 9px;border-radius:99px;background:var(--fill);font-size:12px;color:var(--ink2)}
.ck-btn{width:70px;height:70px;border-radius:50%;flex:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:#fff;font-size:13px;font-weight:700;background:linear-gradient(145deg,#FFC04D,#FF8A2F);box-shadow:0 10px 20px -8px rgba(255,138,47,.8),inset 0 -3px 0 rgba(0,0,0,.08)}
.ck-btn:not(.done){animation:ckp 2s ease-in-out infinite}
@keyframes ckp{0%,100%{box-shadow:0 10px 20px -8px rgba(255,138,47,.8),0 0 0 0 rgba(255,160,60,.45)}60%{box-shadow:0 10px 20px -8px rgba(255,138,47,.8),0 0 0 12px rgba(255,160,60,0)}}
.ck-btn.done{background:var(--ok-bg);color:var(--mint);box-shadow:none}
.ck-btn.stamp{animation:stamp .45s cubic-bezier(.2,.9,.3,1.4)}
@keyframes stamp{0%{transform:scale(1)}40%{transform:scale(.8)}100%{transform:scale(1.08)}}
.cal-hd{display:flex;align-items:center;justify-content:space-between}
.cal-hd b{font-size:17px}
.cal-hd button{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--fill);color:var(--ink2)}
.cal-hd button[disabled]{opacity:.3}
.cal-sub{display:flex;justify-content:center;gap:16px;font-size:12.5px;color:var(--muted);margin:6px 0 12px}.cal-sub b{color:var(--brand-t)}
.cal-wk,.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;text-align:center}
.cal-wk span{font-size:12px;color:var(--muted);padding-bottom:6px}
.dc{position:relative;height:44px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:14px;color:var(--ink)}
.dc b{font-weight:600;line-height:1}
.dc i{position:absolute;right:4px;top:4px;width:14px;height:14px;border-radius:50%;background:#fff;color:var(--brand);display:grid;place-items:center;font-style:normal}
.dc em{font-style:normal;font-size:9.5px;color:var(--muted);margin-top:3px}
.dc.on{background:linear-gradient(145deg,#7667FF,#5140EC);color:#fff}
.dc.mk{background:rgba(255,185,48,.18);color:#A36A00}
[data-theme=dark] .dc.mk{color:var(--sun)}
.dc .mki{background:#FFB930;color:#fff;font-size:8.5px;font-weight:700;width:14px;height:14px}
.dc.miss b{color:var(--muted)}
.dc.miss::after{content:"";position:absolute;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--red);opacity:.6}
.dc.miss em{display:none}
.dc.fut{color:var(--line2)}
.dc.today{box-shadow:inset 0 0 0 2px var(--brand)}
.dc.today.on{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--brand)}
.cal-lg{display:flex;justify-content:center;gap:14px;margin-top:12px;font-size:11.5px;color:var(--muted)}
.cal-lg span{display:flex;align-items:center;gap:4px}.cal-lg i{width:10px;height:10px;border-radius:3px}
.cal-lg .on{background:var(--brand)}.cal-lg .mk{background:#FFB930}.cal-lg .miss{background:var(--red);opacity:.6;border-radius:50%;width:6px;height:6px}
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.bd span{width:52px;height:52px;margin:0 auto;border-radius:50%;display:grid;place-items:center;background:var(--fill);color:var(--muted)}
.bd b{display:block;font-size:12.5px;margin-top:6px}.bd small{font-size:10.5px;color:var(--muted)}
.bd.got span{background:linear-gradient(145deg,#FFD166,#FF9F43);color:#fff;box-shadow:0 8px 16px -8px rgba(255,159,67,.9)}
.bd:not(.got){opacity:.6}

/* ---------- 学习 / 题库 / 我的 ---------- */
.lstat{display:grid;grid-template-columns:repeat(3,1fr);margin:4px 16px 0;padding:16px 6px;border-radius:20px;background:var(--card);text-align:center}
.lstat div+div{border-left:.5px solid var(--line)}
.lstat b{display:block;font-size:22px;font-weight:800;color:var(--brand-t)}.lstat small{font-size:11.5px;color:var(--muted)}
.mc{display:flex;align-items:center;gap:12px;margin:0 16px 10px;padding:12px;border-radius:18px;background:var(--card)}
.mc-cv{width:108px;height:61px;border-radius:11px;overflow:hidden;flex:none}.mc-cv svg{display:block}
.mc-m{flex:1;min-width:0}.mc-m a{text-decoration:none;color:inherit}
.mc-m b{display:block;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mc-m small{display:block;font-size:12px;color:var(--muted);margin:3px 0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mc-p{display:flex;align-items:center;gap:8px}.mc-p span{font-size:12px;font-weight:700;color:var(--brand-t)}
.mc-go{width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;flex:none;padding-left:2px;box-shadow:0 8px 16px -8px var(--brand)}
.path .c-hd b .ic{color:#E09A00}
.steps4{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.st4{display:flex;flex-direction:column;align-items:center;text-align:center;position:relative}
.st4::before{content:"";position:absolute;top:12px;right:50%;width:100%;height:2px;background:var(--fill)}
.st4:first-child::before{display:none}.st4.ok::before{background:var(--mint)}
.st4 i{position:relative;z-index:1;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:12px;font-weight:700;background:var(--fill);color:var(--muted)}
.st4.ok i{background:var(--mint);color:#fff}
.st4 b{font-size:12.5px;margin-top:6px}.st4 small{font-size:11px;color:var(--muted);margin-top:2px}
.path-f{display:flex;justify-content:space-between;align-items:center;margin-top:14px;padding-top:12px;border-top:.5px solid var(--line);font-size:13px;color:var(--ink2)}
.path-f b{color:var(--mint)}
.rl{display:flex;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;color:inherit}
.rl+.rl{border-top:.5px solid var(--line)}
.rl-ic{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:var(--c);background:color-mix(in srgb,var(--c) 12%,transparent);flex:none}
.rl div{flex:1;min-width:0}.rl b{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rl small{display:block;font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rl-s{font-size:12px;color:var(--brand-t);flex:none}.rl-s.ok{color:var(--mint)}
.pr-hero{display:flex;align-items:center;gap:16px;margin:4px 16px 12px;padding:18px;border-radius:24px;color:#fff;background:radial-gradient(120% 100% at 100% 0%,#8C7DFF 0%,rgba(140,125,255,0) 60%),linear-gradient(150deg,#4B3CE0,#2B2270)}
.pr-acc{position:relative;flex:none}.pr-acc svg{display:block}
.pr-acc>div{position:absolute;inset:0;display:flex;align-items:baseline;justify-content:center;padding-top:28px}
.pr-acc b{font-size:26px;font-weight:800}.pr-acc small{font-size:12px;opacity:.7}
.pr-k{flex:1;display:grid;grid-template-columns:repeat(3,1fr);text-align:center}
.pr-k b{display:block;font-size:20px;font-weight:700}.pr-k small{font-size:11px;opacity:.7}
.pr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 16px}
.pr-grid a{padding:14px 12px;border-radius:18px;background:var(--card);text-decoration:none;color:inherit}
.pr-grid span{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;color:#fff}
.pg1 span{background:linear-gradient(145deg,#FF7A7F,#F2555A)}.pg2 span{background:linear-gradient(145deg,#7B6BFF,#5140EC)}.pg3 span{background:linear-gradient(145deg,#FFC04D,#FF8A2F)}
.pr-grid b{display:block;font-size:14.5px;margin-top:10px}.pr-grid small{font-size:11.5px;color:var(--muted)}
.pc{display:flex;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;color:inherit}
.pc+.pc{border-top:.5px solid var(--line)}
.pc-no{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:800;background:var(--fill);color:var(--ink2);flex:none}
.pc div{flex:1;min-width:0}.pc b{display:block;font-size:14.5px;font-weight:600}.pc small{font-size:12px;color:var(--muted)}
.pc-s{font-size:18px;font-weight:800}.pc-s.ok{color:var(--mint)}.pc-s.mid{color:#E09A00}.pc-s.low{color:var(--red)}
.pc-go{font-size:12.5px;color:var(--brand-t);font-weight:600;height:28px;padding:0 10px;border-radius:99px;background:rgba(91,76,240,.1);display:flex;align-items:center}
.me-card{display:flex;align-items:center;gap:14px;margin:4px 16px 12px;padding:16px;border-radius:22px;background:var(--card)}
.me-card svg.av{border-radius:50%;flex:none}
.me-m{flex:1}.me-m b{display:block;font-size:19px}.me-m small{display:block;font-size:12.5px;color:var(--muted);margin:2px 0 6px}
.vip{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 9px;border-radius:99px;font-size:12px;font-weight:600;color:var(--brand-t);background:rgba(91,76,240,.1)}
.me-kpi{display:grid;grid-template-columns:repeat(4,1fr);margin:0 16px 14px;padding:14px 4px;border-radius:20px;background:var(--card);text-align:center}
.me-kpi a{text-decoration:none;color:inherit;cursor:pointer}
.me-kpi b{display:block;font-size:20px;font-weight:800}.me-kpi small{font-size:11.5px;color:var(--muted)}
.group{margin:0 16px 14px;background:var(--card);border-radius:18px;overflow:hidden}
.cell{display:flex;align-items:center;gap:12px;width:100%;min-height:52px;padding:0 14px;text-align:left;text-decoration:none;color:inherit;font-size:15px;position:relative}
.cell+.cell::before{content:"";position:absolute;top:0;left:56px;right:0;border-top:.5px solid var(--line)}
.ci{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--c);color:#fff;flex:none}
.cell>em{margin-left:auto;font-style:normal;font-size:13.5px;color:var(--muted)}
.cell .chev{color:var(--muted);opacity:.6}
.ver{text-align:center;font-size:12px;color:var(--muted);margin:6px 0 0}
.cert{padding:0 20px 16px}
.cert-p{position:relative;padding:26px 20px 18px;border-radius:16px;text-align:center;background:linear-gradient(160deg,#FFFBF0,#FFF3D6);color:#4A3A10;border:1.5px solid #E9D39A;box-shadow:inset 0 0 0 6px #FFFBF0,inset 0 0 0 7px #E9D39A}
.cp-b{width:52px;height:52px;margin:0 auto 8px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#FFD166,#E09A00);color:#fff}
.cert-p small{font-size:13px;letter-spacing:6px;color:#9A7A2A}
.cert-p>b{display:block;font-size:24px;margin:10px 0 8px;font-family:"Songti SC","STSong","SimSun",serif}
.cert-p p{margin:0;font-size:13px;line-height:1.8;color:#6A5520}
.cp-f{display:flex;justify-content:space-between;margin-top:18px;font-size:10.5px;color:#9A7A2A}
.cp-seal{position:absolute;right:26px;bottom:30px;width:56px;height:56px;border-radius:50%;border:2px solid rgba(220,60,50,.7);color:rgba(220,60,50,.75);font-style:normal;font-size:12px;font-weight:800;line-height:1.3;display:grid;place-items:center;transform:rotate(-14deg)}
.cert-n{font-size:12px;color:var(--muted);line-height:1.6;margin:12px 0}
.favs{padding:0 16px 16px}
.msgs{padding:0 16px 12px}
.msg{display:flex;gap:12px;padding:12px 0}.msg+.msg{border-top:.5px solid var(--line)}
.mi{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:rgba(91,76,240,.1);color:var(--brand-t);flex:none}
.msg b{font-size:14.5px}.msg p{margin:3px 0;font-size:13px;color:var(--ink2);line-height:1.5}.msg small{font-size:11.5px;color:var(--muted)}
.pt-l.dn .pt-i{color:var(--mint)}
/* ===== 运营后台（Web） ===== */
body.web-mode{--w-bg:#F3F3FA}
[data-theme=dark] body.web-mode{--w-bg:#0E0E16}
.olw{min-height:100vh;color:var(--ink);background:var(--w-bg)}
.ol-top{position:sticky;top:0;z-index:40;height:58px;display:flex;align-items:center;gap:22px;padding:0 24px;background:#1A1B2E;color:#fff}
.ol-logo{display:flex;align-items:center;gap:10px;white-space:nowrap}.ol-logo span{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#7B6BFF,#5B4CF0)}.ol-logo b{font-size:15.5px}
.ol-top nav{display:flex;gap:4px;flex:1;min-width:0}
.ol-top nav button{height:34px;padding:0 14px;border-radius:9px;color:rgba(255,255,255,.72);font-size:14px;white-space:nowrap}.ol-top nav button:hover{background:rgba(255,255,255,.08);color:#fff}
.ol-tr{display:flex;align-items:center;gap:8px;margin-left:auto}
.ol-mark{font-size:12px;color:rgba(255,255,255,.62);border:1px dashed rgba(255,255,255,.25);padding:4px 10px;border-radius:99px;white-space:nowrap}
.ol-b{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:9px;background:rgba(255,255,255,.08);color:#fff;font-size:13px;white-space:nowrap;text-decoration:none}.ol-b:hover{background:rgba(255,255,255,.14)}
.ol-body{max-width:1280px;margin:0 auto;padding:22px 24px 40px;display:grid;gap:16px}
.ol-body>*{min-width:0}
.ol-hd h1{margin:0;font-size:22px}.ol-hd p{margin:4px 0 0;font-size:13px;color:var(--muted)}
.ol-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ol-k{background:var(--card);border-radius:16px;padding:16px 18px;box-shadow:0 1px 0 var(--line)}
.ol-k>small{font-size:12.5px;color:var(--muted)}.ol-k>b{display:block;font-size:28px;margin:6px 0 4px;letter-spacing:-.5px}.ol-k>b small{font-size:13px;color:var(--muted);font-weight:500}
.ol-k>span{font-size:12px;color:var(--ink2)}.ol-k em{font-style:normal;font-weight:600}.ol-k em.up{color:var(--mint)}.ol-k em.dn{color:var(--red)}.ol-k i{font-style:normal;font-weight:600}
.ol-g2{display:grid;grid-template-columns:2fr 1fr;gap:16px}.ol-g2>*{min-width:0}
.ol-p{background:var(--card);border-radius:16px;padding:16px 18px;box-shadow:0 1px 0 var(--line);min-width:0}
.ol-ph{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}.ol-ph>b{font-size:16px}
.ol-ch{height:280px}
.ol-seg{display:flex;padding:3px;border-radius:10px;background:var(--fill)}.ol-seg button{height:28px;padding:0 12px;border-radius:8px;font-size:12.5px;color:var(--ink2)}.ol-seg button.on{background:var(--card);color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.ol-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ol-in{display:flex;align-items:center;gap:6px;height:34px;padding:0 10px;border-radius:10px;background:var(--fill);color:var(--muted)}.ol-in input{border:0;background:none;outline:0;font:inherit;font-size:13.5px;color:var(--ink);width:170px}
.ol-tools select{height:34px;padding:0 8px;border-radius:10px;border:0;background:var(--fill);color:var(--ink);font:inherit;font-size:13px;max-width:190px}
.ol-btn{display:inline-flex;align-items:center;gap:5px;height:34px;padding:0 12px;border-radius:10px;font-size:13px;background:var(--fill);color:var(--ink);white-space:nowrap}.ol-btn.pri{background:var(--brand);color:#fff}
.ol-tw{overflow-x:auto;margin:0 -18px;padding:0 18px}
.ol-t{width:100%;border-collapse:collapse;font-size:13px;white-space:nowrap}
.ol-t th{text-align:left;font-weight:500;color:var(--muted);font-size:12px;padding:8px 10px;border-bottom:1px solid var(--line-s)}
.ol-t td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}
.ol-t .r{text-align:right}
.ol-cc{display:flex;align-items:center;gap:10px}.ol-cv{width:64px;height:36px;border-radius:7px;overflow:hidden;flex:none;display:block}.ol-cv svg{display:block;width:64px;height:36px}
.ol-cc b{display:block;font-size:13.5px}.ol-cc small{display:block;font-size:11.5px;color:var(--muted);margin-top:2px}
.ol-tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:12px;color:var(--tc);background:color-mix(in srgb,var(--tc) 12%,transparent)}
[data-theme=dark] .ol-tag{color:color-mix(in srgb,var(--tc) 60%,#fff)}
.ol-bar{display:inline-block;width:52px;height:6px;border-radius:3px;background:var(--fill);vertical-align:middle;margin-right:6px;overflow:hidden}.ol-bar i{display:block;height:100%;background:var(--mint);border-radius:3px}
.ol-st{font-size:12px;padding:2px 8px;border-radius:6px}.ol-st.on{background:var(--ok-bg);color:var(--mint)}
.ol-ops{text-align:right}.ol-ops a,.ol-ops button{color:var(--brand-t);font-size:13px;margin-left:10px;text-decoration:none}
.ol-qr{cursor:pointer}.ol-qr:hover td{background:var(--fill)}.ol-qr.open td{background:color-mix(in srgb,var(--brand) 7%,transparent)}
.ol-stem{max-width:420px;overflow:hidden;text-overflow:ellipsis}
.ol-src{font-size:12.5px}.ol-src small{display:block;color:var(--muted);font-size:11.5px;margin-top:2px}
.ol-qty{font-size:12px;padding:2px 8px;border-radius:6px;background:var(--tag-bg);color:var(--tag-ink)}.ol-qty.multi{background:rgba(255,185,48,.16);color:#B27400}.ol-qty.judge{background:var(--ok-bg);color:var(--mint)}
[data-theme=dark] .ol-qty.multi{color:#FFC24D}
.ol-t .lo{color:var(--red)}
.ol-qd td{background:color-mix(in srgb,var(--brand) 4%,transparent);white-space:normal;padding-top:4px}
.ol-opts{margin:0;padding:0;list-style:none;display:grid;gap:6px}.ol-opts li{display:flex;gap:8px;font-size:13px;color:var(--ink2)}.ol-opts li i{font-style:normal;font-weight:600;min-width:12px}.ol-opts li.ok{color:var(--mint);font-weight:600}
.ol-qd p{margin:10px 0 2px;font-size:12.5px;line-height:1.6;color:var(--ink2)}.ol-qd p b{margin-right:8px;color:var(--ink)}
.ol-pg{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:12px;font-size:12.5px;color:var(--muted)}
.ol-pg>div{display:flex;gap:4px;align-items:center}.ol-pg button{min-width:30px;height:30px;border-radius:8px;background:var(--fill);color:var(--ink);font-size:12.5px}.ol-pg button.on{background:var(--brand);color:#fff}.ol-pg em{font-style:normal;padding:0 2px}
.ol-empty{padding:36px 0;text-align:center;color:var(--muted);font-size:13px}
.ol-toast{position:fixed;left:50%;top:76px;transform:translateX(-50%);z-index:90;padding:10px 16px;border-radius:12px;background:#1A1B2E;color:#fff;font-size:13.5px;box-shadow:0 12px 30px -12px rgba(0,0,0,.4);transition:opacity .3s;max-width:calc(100vw - 32px)}
.ol-toast.out{opacity:0}
@media (max-width:1024px){.ol-g2{grid-template-columns:1fr}.ol-kpis{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){
  .ol-top{padding:0 14px;gap:10px}.ol-top nav{display:none}.ol-logo b{font-size:14.5px}.ol-b span{display:none}.ol-b{padding:0 9px}
  .ol-mark{position:absolute;top:100%;left:50%;transform:translateX(-50%);font-size:10px;line-height:18px;padding:0 10px;border:0;border-radius:0 0 8px 8px;background:#1A1B2E;color:rgba(255,255,255,.78)}
  .ol-body{padding:30px 14px 32px;gap:12px}
  .ol-kpis{gap:10px}.ol-k{padding:13px 14px}.ol-k>b{font-size:23px}
  .ol-p{padding:14px}.ol-tw{margin:0 -14px;padding:0 14px}
  .ol-ch{height:240px}
  .ol-tools{width:100%}.ol-in{flex:1 1 100%}.ol-in input{width:100%}.ol-tools select{flex:1 1 0;min-width:0;max-width:none}
  .ol-stem{max-width:240px}
  .ol-qd td:first-child{display:none}.ol-dv{position:sticky;left:0;max-width:calc(100vw - 58px)}
}
.vs-fork .pip{bottom:auto;top:70px}

/* 后台表格：手机端按卡片显示（与其他作品的卡片表格一致） */
@media (max-width:640px){
  .ol-tw{overflow:visible;margin-left:0;margin-right:0;padding-left:0;padding-right:0}
  .ol-t,.ol-t tbody{display:block;white-space:normal}
  .ol-t thead{display:none}
  .ol-t tbody>tr{display:block;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:10px;background:var(--card)}
  .ol-t tbody>tr>td{display:block;border:0;padding:5px 0;text-align:right;white-space:normal;overflow:hidden}
  .ol-t tbody>tr>td[data-l]::before{content:attr(data-l);float:left;margin-right:12px;color:var(--muted);font-size:12px;font-weight:400}
  .ol-t tbody>tr>td.c-first{text-align:left;padding:2px 0 8px;margin-bottom:4px;border-bottom:1px dashed var(--line)}
  .ol-t tbody>tr>td.c-op{text-align:right;padding-top:8px}
  .ol-t tbody>tr>td.c-op:empty{display:none}
  .ol-t tbody>tr.c-x>td{text-align:left}
  .ol-t .ol-bar{display:inline-block;vertical-align:middle;margin-right:6px}.ol-t .ol-cc{align-items:center}.ol-t tr.ol-qd>td:first-child{display:none}.ol-t td.ol-stem{max-width:none;text-align:left;text-overflow:clip}.ol-t td.ol-stem::before{float:none;display:block;margin-bottom:2px}
}

/* 手机全屏：可读性与触控区（仅 ≤600px，桌面手机框不变） */
@media (max-width:600px){
  :root:not([data-theme=dark]){--muted:#6B6D7F;--tab-off:#6D6E7D}
  [data-theme=dark]{--muted:#828399;--tab-off:#828399}
  :root:not([data-theme=dark]) .rl-s.ok,:root:not([data-theme=dark]) .pc-s.ok{color:#10855D}
  :root:not([data-theme=dark]) .pc-s.mid{color:#9C6B00}
  :root:not([data-theme=dark]) .cd-tags .ct{color:#946500}
  :root:not([data-theme=dark]) .wq-n{color:#BA4145}
  .dc em{font-size:10px}
  .cd-prog small,.rv-bars div,.rv-h small,.fr-m small,.p-pro small,.pt-l small,.n-m small,.cal-lg,.lstat small,.st4 small,.pr-grid small,.me-kpi small,.pg1 small,.pg2 small,.pg3 small{font-size:12px}
  .chips{padding-top:6px;margin-top:-6px;padding-bottom:10px;margin-bottom:-6px}
  .nv-back,.seg button,.sorts button,.p-acts>button,.me-kpi>a,.chips button,.mc-m>a,.mc-go,.hh-av,.vc-b,.pt-q,.pt-l.dn,.switch,.btn-o,.vc-rate,.p-sub>a,.chk,.goal-btn,.cal-hd button{position:relative}
  .nv-btn::after,.nv-back::after,.vc-b::after{content:"";position:absolute;inset:-4px}
  .nv-back::after{inset:-4px -10px -4px -4px}
  .mc-go::after,.hh-av::after{content:"";position:absolute;inset:-3px}
  .cal-hd button::after{content:"";position:absolute;inset:-5px}
  .seg button::after,.chips button::after,.btn-o::after,.switch::after{content:"";position:absolute;inset:-7px 0}
  .sorts button::after{content:"";position:absolute;inset:-9px -1px}
  .p-acts>button::after{content:"";position:absolute;inset:-4px 0}
  .pt-l{min-height:44px}.pt-q{min-height:44px}
  .me-kpi>a::after{content:"";position:absolute;inset:-2px 0}
  .mc-m>a::after{content:"";position:absolute;inset:-13px 0}
  .vc-rate::after{content:"";position:absolute;inset:-9px -4px}
  .goal-btn::after{content:"";position:absolute;inset:-9px 0}
  .chk::after{content:"";position:absolute;inset:-14px -6px}
  .p-sub>a{padding:13px 0;margin:-13px 0}
}

/* 错题来源：未做过章节练习的错题标注来自模拟考试 / 每日一练 */
.wq-from{margin-left:6px;font-size:11px;color:var(--muted);font-weight:400}
.ckt-m small{text-wrap:balance}/* 说明文字两行均分，不留孤字 */