/* ============================================================
   二建刷题 · 设计系统 v2
   主色 靛蓝 ｜ 点缀 琥珀 ｜ 三科主题色 法·靛蓝 管·松绿 实·赭橙
   ============================================================ */
:root{
  --bg:#f3f5f8;
  --card:#ffffff;
  --ink:#151f2e;
  --ink2:#57637a;
  --ink3:#8e99ab;
  --line:#e6eaf1;
  --line2:#eef1f6;
  --field:#f7f9fb;
  --pri:#1d3557;
  --pri2:#3a6ea5;
  --pri-soft:#e9f0f9;
  --accent:#c2703e;
  --ok:#2e7d5b;
  --ok-soft:#e7f4ee;
  --bad:#c0432f;
  --bad-soft:#fbeae7;
  --warn:#b98a25;
  --warn-soft:#fbf3df;
  --fg-c:#34558b;
  --gl-c:#2f7d5f;
  --sl-c:#c2703e;
  --r:20px;
  --r2:14px;
  --sh:0 1px 2px rgba(21,31,46,.05),0 8px 24px -12px rgba(21,31,46,.14);
  --sh-lg:0 2px 4px rgba(21,31,46,.05),0 18px 44px -18px rgba(21,31,46,.22);
  --safe:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(1200px 420px at 50% -180px, rgba(58,110,165,.13), transparent 70%),
    var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(70px + var(--safe));
}
body.in-quiz{padding-bottom:0}
body.in-quiz .tabbar{display:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;padding:0;cursor:pointer}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

#app{max-width:760px;margin:0 auto;padding:0 16px}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:10px;
  height:56px;margin:0 -16px;padding:0 14px;
  background:rgba(243,245,248,.82);backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .2s;
}
.topbar.scrolled{border-bottom-color:var(--line)}
.topbar h1{font-size:17px;font-weight:700;margin:0;letter-spacing:.3px;flex:1;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  color:var(--ink2);flex:0 0 auto;transition:background .15s;
}
.icon-btn:active{background:var(--line2)}
.icon-btn svg{width:20px;height:20px}
.icon-btn.text{width:auto;padding:0 11px;font-size:13px;font-weight:600;color:var(--pri)}

/* ---------- 首页 hero ---------- */
.hero{
  margin:12px 0 18px;padding:24px 22px 20px;border-radius:24px;
  background:linear-gradient(148deg,#14273f 0%,#1d3a5f 48%,#2c5a8a 100%);
  color:#fff;position:relative;overflow:hidden;
  box-shadow:0 20px 44px -20px rgba(20,39,63,.55);
}
.hero::before{
  content:"";position:absolute;right:-70px;top:-90px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 66%);
}
.hero::after{
  content:"";position:absolute;left:-40px;bottom:-80px;width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,154,43,.22),transparent 68%);
}
.hero .kicker{font-size:10.5px;letter-spacing:2.6px;opacity:.62;text-transform:uppercase;font-weight:600}
.hero h2{margin:6px 0 3px;font-size:24px;font-weight:750;letter-spacing:.6px}
.hero .sub{font-size:12.5px;opacity:.74;letter-spacing:.3px}
.countdown{display:flex;align-items:baseline;gap:7px;margin-top:18px;position:relative;z-index:1}
.countdown b{font-size:40px;font-weight:800;line-height:1;letter-spacing:-1.5px;
  text-shadow:0 2px 12px rgba(0,0,0,.18)}
.countdown span{font-size:12.5px;opacity:.78}
.countdown .edit{
  margin-left:auto;font-size:11.5px;opacity:.85;border:1px solid rgba(255,255,255,.35);
  padding:5px 11px;border-radius:100px;background:rgba(255,255,255,.1);backdrop-filter:blur(4px);
}
.hero-strip{
  display:flex;gap:6px;margin-top:16px;position:relative;z-index:1;
}
.hero-strip i{
  flex:1;height:4px;border-radius:2px;background:rgba(255,255,255,.14);overflow:hidden;position:relative;
}
.hero-strip i::after{
  content:"";position:absolute;inset:0;border-radius:2px;
  background:linear-gradient(90deg,#e8b45a,#d99a2b);
  transform-origin:left;transform:scaleX(var(--p,0));transition:transform .8s cubic-bezier(.4,0,.2,1);
}

/* ---------- 统计条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-bottom:22px}
.stat{
  background:var(--card);border-radius:16px;padding:13px 4px 11px;text-align:center;
  box-shadow:var(--sh);border:1px solid rgba(255,255,255,.7);position:relative;overflow:hidden;
}
.stat::after{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--pri2);opacity:.85;
}
.stat:nth-child(3)::after{background:var(--bad)}
.stat:nth-child(4)::after{background:var(--warn)}
.stat b{display:block;font-size:20px;font-weight:750;letter-spacing:-.4px}
.stat span{display:block;font-size:10.5px;color:var(--ink3);margin-top:3px;letter-spacing:.4px}

/* ---------- 区块标题 ---------- */
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin:24px 4px 11px}
.sec-head h3{margin:0;font-size:15.5px;font-weight:700;letter-spacing:.2px;position:relative;padding-left:11px}
.sec-head h3::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--pri2),var(--pri));
}
.sec-head .more{font-size:12px;color:var(--ink3)}

/* ---------- 科目卡 ---------- */
.subj{
  display:block;background:var(--card);border-radius:var(--r);padding:17px 17px 15px;margin-bottom:13px;
  box-shadow:var(--sh);position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.8);
  transition:transform .18s cubic-bezier(.4,0,.2,1),box-shadow .18s;
}
.subj:active{transform:scale(.985);box-shadow:var(--sh-lg)}
.subj::after{
  content:"";position:absolute;right:-34px;top:-34px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,var(--tint,rgba(58,110,165,.08)),transparent 70%);
}
.subj .row1{display:flex;align-items:center;gap:12px;margin-bottom:13px;position:relative;z-index:1}
.subj .badge{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:750;letter-spacing:0;color:#fff;
  box-shadow:0 4px 12px -4px var(--tint-strong,rgba(52,85,139,.5));
}
.subj .badge.fg{background:linear-gradient(145deg,#41659c,#2c4a78)}
.subj .badge.gl{background:linear-gradient(145deg,#3d9271,#266a4e)}
.subj .badge.sl{background:linear-gradient(145deg,#d0854f,#a85a2c)}
.subj .name{font-size:16px;font-weight:680;line-height:1.3;letter-spacing:.2px}
.subj .meta{font-size:11.5px;color:var(--ink3);margin-top:2px}
.subj .pct{margin-left:auto;font-size:15px;color:var(--ink2);font-weight:750}
.bar{height:6px;border-radius:100px;background:var(--line2);overflow:hidden;position:relative}
.bar i{
  display:block;height:100%;border-radius:100px;
  background:linear-gradient(90deg,var(--pri2),#6d9cc9);
  transition:width .6s cubic-bezier(.4,0,.2,1);
  position:relative;
}
.subj .foot{display:flex;justify-content:space-between;margin-top:9px;font-size:11.5px;color:var(--ink3)}

/* ---------- 模式按钮组 ---------- */
.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:0 0 20px}
.mode{
  background:var(--card);border-radius:16px;padding:14px 6px 12px;text-align:center;box-shadow:var(--sh);
  border:1px solid rgba(255,255,255,.7);transition:transform .15s,box-shadow .15s;
}
.mode:active{transform:scale(.96);box-shadow:var(--sh-lg)}
.mode b{display:block;font-size:13.5px;font-weight:680;margin-top:7px;letter-spacing:.2px}
.mode span{display:block;font-size:10.5px;color:var(--ink3);margin-top:2px}
.mode svg{
  width:23px;height:23px;margin:0 auto;display:block;color:var(--pri2);
  filter:drop-shadow(0 2px 4px rgba(58,110,165,.25));
}
.mode.accent svg{color:var(--accent);filter:drop-shadow(0 2px 4px rgba(194,112,62,.3))}

/* ---------- 筛选片 ---------- */
.chips{display:flex;gap:8px;margin:0 0 14px;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:7px 15px;border-radius:100px;font-size:12.5px;font-weight:500;
  background:var(--card);color:var(--ink2);border:1px solid var(--line);
  transition:all .18s;
}
.chip.on{
  background:linear-gradient(135deg,var(--pri2),var(--pri));color:#fff;border-color:transparent;
  box-shadow:0 4px 12px -4px rgba(29,53,87,.5);
}

/* ---------- 章节行 ---------- */
.list{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;border:1px solid rgba(255,255,255,.8)}
.crow{display:flex;align-items:center;gap:12px;padding:15px 16px;border-bottom:1px solid var(--line2);transition:background .15s}
.crow:last-child{border-bottom:0}
.crow:active{background:var(--field)}
.crow .idx{
  font-size:11px;color:var(--ink3);width:26px;height:26px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--field);border-radius:8px;font-weight:650;
}
.crow .body{flex:1;min-width:0}
.crow .t{font-size:14.5px;font-weight:560;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crow .s{font-size:11.5px;color:var(--ink3);margin-top:3px;display:flex;gap:8px;align-items:center}
.crow .s .ok{color:var(--ok);font-weight:600}
.crow .s .bad{color:var(--bad);font-weight:600}
.crow .arr{color:#c3cbd8;flex:0 0 auto}
.crow .arr svg{width:16px;height:16px}
.mini-bar{height:3px;background:var(--line2);border-radius:2px;margin-top:7px;overflow:hidden}
.mini-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pri2),#6d9cc8);border-radius:2px;transition:width .5s}

/* ---------- 答题页 ---------- */
.quiz-wrap{padding-bottom:calc(96px + var(--safe))}
.quiz-head{
  position:sticky;top:0;z-index:30;
  background:rgba(243,245,248,.86);backdrop-filter:saturate(180%) blur(16px);
  margin:0 -16px;padding:10px 12px 10px;
  border-bottom:1px solid rgba(230,234,241,.7);
}
.qh-row{display:flex;align-items:center;gap:6px}
.qh-row .idx{font-size:12px;color:var(--ink3);font-variant-numeric:tabular-nums;padding:0 4px}
.qh-row .idx b{color:var(--ink);font-size:15px;font-weight:750}
.qh-bar{
  height:3px;background:rgba(230,234,241,.9);border-radius:2px;margin-top:9px;overflow:hidden;
}
.qh-bar i{
  display:block;height:100%;border-radius:2px;
  background:linear-gradient(90deg,var(--pri2),#6d9cc9);transition:width .35s cubic-bezier(.4,0,.2,1);
}

.q-card{
  background:var(--card);border-radius:var(--r);padding:19px 18px 10px;margin-top:15px;
  box-shadow:var(--sh-lg);border:1px solid rgba(255,255,255,.8);
}
.q-tags{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap;align-items:center}
.tag{font-size:10.5px;padding:3px 9px;border-radius:6px;letter-spacing:.3px;font-weight:600}
.tag.type{background:var(--pri-soft);color:var(--pri)}
.tag.real{background:var(--warn-soft);color:var(--warn)}
.tag.ch{background:var(--field);color:var(--ink3);border:1px solid var(--line2)}
.q-text{
  font-size:16.5px;line-height:1.74;font-weight:600;letter-spacing:.2px;white-space:pre-wrap;
}
.q-bg{
  font-size:14px;line-height:1.78;color:var(--ink2);
  background:linear-gradient(135deg,var(--field),#fff);
  border:1px solid var(--line2);border-left:3px solid var(--pri2);
  border-radius:0 12px 12px 0;padding:13px 15px;margin:0 0 15px;
  white-space:pre-wrap;
}
.opts{margin:17px 0 4px}
.opt{
  display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;
  padding:14px 15px;border:1.5px solid var(--line);border-radius:14px;margin-bottom:10px;
  background:#fff;transition:background .16s,border-color .16s,transform .12s,box-shadow .16s;
  box-shadow:0 1px 2px rgba(21,31,46,.03);
}
.opt:active{transform:scale(.985)}
.opt .k{
  width:24px;height:24px;border-radius:8px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--ink3);
  background:linear-gradient(145deg,#f2f4f8,#e9edf3);margin-top:1px;
  transition:all .16s;
}
.opt .v{flex:1;font-size:14.5px;line-height:1.64}
.opt.picked{
  border-color:var(--pri2);background:#f4f8fd;
  box-shadow:0 4px 14px -6px rgba(58,110,165,.4);
}
.opt.picked .k{background:linear-gradient(145deg,var(--pri2),var(--pri));color:#fff}
.opt.right{border-color:#8cc7ac;background:var(--ok-soft)}
.opt.right .k{background:linear-gradient(145deg,#3d9670,#266a4e);color:#fff}
.opt.wrong{border-color:#e5a79e;background:var(--bad-soft)}
.opt.wrong .k{background:linear-gradient(145deg,#d05a44,#a63a28);color:#fff}
.opt.miss{border-color:#8cc7ac;border-style:dashed;background:#fbfefd}
.opt.miss .k{background:var(--ok-soft);color:var(--ok);border:1px dashed #8cc7ac}

.verdict{
  display:flex;align-items:center;gap:8px;margin:4px 0 13px;font-size:14px;font-weight:700;
  letter-spacing:.2px;
}
.verdict.ok{color:var(--ok)}
.verdict.bad{color:var(--bad)}
.verdict.half{color:var(--warn)}
.verdict .score{margin-left:auto;font-size:12px;font-weight:500;color:var(--ink3)}

.analysis{
  background:linear-gradient(160deg,var(--field),#fdfdfe);
  border-radius:14px;padding:15px 15px 13px;margin:4px 0 13px;
  border:1px solid var(--line2);border-left:3px solid var(--pri2);
}
.analysis h4{
  margin:0 0 9px;font-size:11.5px;letter-spacing:1.6px;color:var(--ink3);font-weight:700;
  display:flex;align-items:center;gap:6px;text-transform:uppercase;
}
.analysis .ans-line{font-size:13px;margin-bottom:8px;color:var(--ink)}
.analysis .ans-line b{color:var(--ok);font-weight:750;letter-spacing:.8px;font-size:14px}
.analysis p{margin:0;font-size:13.5px;line-height:1.8;color:#3d4a61;white-space:pre-wrap}
.case-answer{font-size:13.5px;line-height:1.88;color:#3d4a61;white-space:pre-wrap}

/* 底部操作栏 */
.quiz-actions{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  background:rgba(255,255,255,.9);backdrop-filter:blur(16px) saturate(180%);
  border-top:1px solid rgba(230,234,241,.8);
  padding:11px 16px calc(11px + var(--safe));
}
.qa-inner{max-width:760px;margin:0 auto;display:flex;gap:10px;align-items:center}
.btn{
  height:48px;border-radius:14px;font-size:15px;font-weight:650;letter-spacing:.3px;
  display:flex;align-items:center;justify-content:center;gap:6px;
  padding:0 18px;transition:opacity .15s,transform .12s,box-shadow .15s;
}
.btn:active{transform:scale(.985);opacity:.92}
.btn.pri{
  background:linear-gradient(135deg,var(--pri2),var(--pri));color:#fff;flex:1;
  box-shadow:0 8px 20px -8px rgba(29,53,87,.75);
}
.btn.ghost{background:var(--field);color:var(--ink2);flex:0 0 auto;border:1px solid var(--line2)}
.btn.line{background:#fff;border:1.5px solid var(--line);color:var(--ink2);flex:0 0 auto}
.btn.wide{width:100%}
.btn:disabled{opacity:.4;box-shadow:none}
.btn svg{width:18px;height:18px}

/* 答题卡抽屉 */
.mask{
  position:fixed;inset:0;background:rgba(15,23,38,.45);z-index:50;
  opacity:0;pointer-events:none;transition:opacity .24s;
}
.mask.on{opacity:1;pointer-events:auto}
.sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:51;background:#fff;
  border-radius:24px 24px 0 0;padding:20px 18px calc(24px + var(--safe));
  transform:translateY(102%);transition:transform .3s cubic-bezier(.32,.72,0,1);
  max-height:76vh;overflow-y:auto;
  box-shadow:0 -12px 40px -12px rgba(21,31,46,.3);
}
.sheet::before{
  content:"";position:absolute;left:50%;top:8px;transform:translateX(-50%);
  width:36px;height:4px;border-radius:2px;background:var(--line);
}
.sheet.on{transform:translateY(0)}
.sheet h3{margin:6px 0 4px;font-size:17px;font-weight:700}
.sheet .hint{font-size:12px;color:var(--ink3);margin-bottom:15px}
.sheet .grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.sheet .grid button{
  height:40px;border-radius:11px;font-size:13.5px;font-variant-numeric:tabular-nums;
  background:var(--field);color:var(--ink2);font-weight:550;
  border:1px solid transparent;transition:all .15s;
}
.sheet .grid button.done{background:var(--pri-soft);color:var(--pri);font-weight:650;border-color:rgba(58,110,165,.2)}
.sheet .grid button.ok{background:var(--ok-soft);color:var(--ok);font-weight:700;border-color:rgba(46,125,91,.2)}
.sheet .grid button.bad{background:var(--bad-soft);color:var(--bad);font-weight:700;border-color:rgba(192,67,47,.2)}
.sheet .grid button.cur{outline:2px solid var(--pri2);outline-offset:1px;font-weight:750}
.legend{display:flex;gap:16px;margin-top:17px;font-size:11.5px;color:var(--ink3)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px}

/* ---------- 结果页 ---------- */
.result-hero{
  background:linear-gradient(160deg,#fff 0%,var(--field) 100%);
  border-radius:24px;padding:28px 20px 22px;text-align:center;
  box-shadow:var(--sh-lg);margin-top:16px;border:1px solid rgba(255,255,255,.9);
}
.ring{width:138px;height:138px;margin:0 auto 15px;position:relative}
.ring svg{transform:rotate(-90deg);filter:drop-shadow(0 4px 10px rgba(21,31,46,.12))}
.ring .val{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.ring .val b{font-size:36px;font-weight:800;letter-spacing:-1.2px;line-height:1}
.ring .val span{font-size:11px;color:var(--ink3);margin-top:4px;letter-spacing:.4px}
.result-hero h2{margin:0 0 4px;font-size:18px;font-weight:720;letter-spacing:.3px}
.result-hero p{margin:0;font-size:12.5px;color:var(--ink3)}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:19px}
.res-grid div{
  background:#fff;border-radius:14px;padding:13px 6px;text-align:center;
  border:1px solid var(--line2);box-shadow:0 1px 3px rgba(21,31,46,.04);
}
.res-grid b{display:block;font-size:18px;font-weight:750}
.res-grid span{font-size:10.5px;color:var(--ink3);letter-spacing:.4px}

/* ---------- 统计页 ---------- */
.card{
  background:var(--card);border-radius:var(--r);padding:17px;box-shadow:var(--sh);
  margin-bottom:13px;border:1px solid rgba(255,255,255,.8);
}
.card h3{margin:0 0 14px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;letter-spacing:.2px}
.card h3 .hint{margin-left:auto;font-size:11.5px;color:var(--ink3);font-weight:400}
.kv{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line2);font-size:13.5px}
.kv:last-child{border-bottom:0;padding-bottom:2px}
.kv .k{color:var(--ink2)}
.kv .v{font-weight:700;font-variant-numeric:tabular-nums}
.chart-row{margin-bottom:13px}
.chart-row:last-child{margin-bottom:0}
.chart-row .top{display:flex;justify-content:space-between;font-size:12.5px;margin-bottom:6px}
.chart-row .top span:last-child{color:var(--ink3);font-variant-numeric:tabular-nums}

/* 统计总览看板 */
.ov-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:4px}
.ov{
  background:linear-gradient(160deg,var(--field),#fff);
  border:1px solid var(--line2);border-radius:16px;padding:14px 15px 12px;
  position:relative;overflow:hidden;
}
.ov::after{
  content:"";position:absolute;right:-18px;top:-18px;width:56px;height:56px;border-radius:50%;
  background:radial-gradient(circle,rgba(58,110,165,.08),transparent 70%);
}
.ov b{display:block;font-size:26px;font-weight:800;letter-spacing:-.6px;line-height:1.1}
.ov b i{font-style:normal;font-size:13px;font-weight:600;color:var(--ink3);margin-left:3px;letter-spacing:0}
.ov span{display:block;font-size:11px;color:var(--ink3);margin-top:4px;letter-spacing:.4px}

/* ---------- 错题 ---------- */
.empty{text-align:center;padding:60px 20px;color:var(--ink3)}
.empty svg{width:48px;height:48px;opacity:.3;margin-bottom:14px}
.empty p{margin:0;font-size:14px;font-weight:550;color:var(--ink2)}
.empty .sub{font-size:12px;margin-top:6px}
.wq{
  background:var(--card);border-radius:16px;padding:15px 16px;margin-bottom:11px;
  box-shadow:var(--sh);border:1px solid rgba(255,255,255,.8);
}
.wq .meta{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}
.wq .txt{font-size:14px;line-height:1.64;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wq .foot{display:flex;align-items:center;margin-top:11px;font-size:12px;color:var(--ink3)}
.wq .foot .lk{margin-left:auto;color:var(--pri2);font-weight:600;padding:2px 6px}
.wq .stat-ok{color:var(--ok);font-weight:600}
.wq .stat-bad{color:var(--bad);font-weight:600}

/* ---------- 弹窗 ---------- */
.dialog{
  position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(15,23,38,.46);backdrop-filter:blur(4px);
}
.dialog.on{display:flex}
.dialog .box{
  background:#fff;border-radius:22px;padding:24px;width:100%;max-width:340px;
  box-shadow:0 28px 70px -20px rgba(0,0,0,.45);
  animation:fadeUp .24s ease both;
}
.dialog h3{margin:0 0 8px;font-size:17px;font-weight:700}
.dialog p{margin:0 0 16px;font-size:13px;color:var(--ink2);line-height:1.65}
.dialog input[type=date],.dialog input[type=text]{
  width:100%;height:46px;border:1.5px solid var(--line);border-radius:12px;padding:0 13px;
  font-size:14.5px;font-family:inherit;margin-bottom:15px;color:var(--ink);background:var(--field);
}
.dialog input:focus{outline:none;border-color:var(--pri2)}
.dialog .acts{display:flex;gap:10px}
.dialog .acts .btn{height:44px;font-size:14px;flex:1}

/* ---------- 底部导航 ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  display:flex;background:rgba(255,255,255,.92);backdrop-filter:blur(18px) saturate(180%);
  border-top:1px solid rgba(230,234,241,.8);
  padding-bottom:var(--safe);
}
.tabbar .tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.5px;
  height:60px;color:var(--ink3);font-size:10.5px;letter-spacing:.3px;font-weight:500;
  position:relative;transition:color .2s;
}
.tabbar .tab svg{width:21px;height:21px;transition:transform .2s}
.tabbar .tab.on{color:var(--pri);font-weight:650}
.tabbar .tab.on svg{stroke-width:2.2;transform:translateY(-1px)}
.tabbar .tab.on::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--pri2),var(--pri));
}

.foot-note{font-size:11.5px;color:var(--ink3);line-height:1.8;padding:6px 8px 24px;text-align:center}

/* ---------- 动画 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.fade{animation:fadeUp .3s cubic-bezier(.4,0,.2,1) both}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ================= v1.1 / v1.2 功能样式 ================= */

/* 真题三级标记 + 收藏星标 */
.tag.adapt{background:var(--pri-soft);color:var(--pri2);box-shadow:inset 0 0 0 1px rgba(58,110,165,.22)}
.tag-star{
  margin-left:auto;width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;color:#b7c0cd;
  transition:color .2s,transform .15s,background .15s;
}
.tag-star svg{width:18px;height:18px}
.tag-star.on{color:#d99a2b}
.tag-star.on svg{filter:drop-shadow(0 1px 4px rgba(217,154,43,.4))}
.tag-star:active{transform:scale(1.15);background:var(--warn-soft)}

/* 案例题作答区 */
.case-input{margin:4px 0 15px}
.case-input h4{margin:0 0 9px;font-size:12.5px;color:var(--ink2);font-weight:700;letter-spacing:.3px}
.case-input textarea{
  display:block;width:100%;min-height:138px;border:1.5px solid var(--line);border-radius:14px;
  padding:13px 15px;font-size:14px;line-height:1.85;font-family:inherit;
  color:var(--ink);background:var(--field);resize:vertical;outline:none;
  -webkit-appearance:none;transition:border-color .18s,background .18s;
}
.case-input textarea:focus{
  border-color:var(--pri2);background:#fff;
  box-shadow:0 0 0 4px rgba(58,110,165,.1);
}
.case-input textarea::placeholder{color:var(--ink3)}
.case-input .cnt{text-align:right;font-size:11.5px;color:var(--ink3);margin-top:6px}
.case-mine{
  font-size:13.5px;line-height:1.85;color:var(--ink2);white-space:pre-wrap;
  border-left:3px solid #d99a2b;padding-left:12px;
  background:linear-gradient(90deg,rgba(217,154,43,.06),transparent);
  border-radius:0 10px 10px 0;padding-top:6px;padding-bottom:6px;
}

/* 案例要点逐条核对 */
.case-check{margin:10px 0 15px}
.case-check h4{
  margin:0 0 10px;font-size:12.5px;color:var(--ink2);font-weight:700;
  display:flex;align-items:center;gap:6px;letter-spacing:.3px;
}
.case-check .pt{
  display:flex;gap:10px;width:100%;text-align:left;align-items:flex-start;
  padding:11px 13px;border:1.5px solid var(--line);border-radius:12px;margin-bottom:8px;
  background:#fff;font-size:13px;line-height:1.72;color:var(--ink2);
  transition:background .16s,border-color .16s,transform .12s;
}
.case-check .pt:active{transform:scale(.985)}
.case-check .pt .box{
  flex:0 0 auto;width:17px;height:17px;border-radius:5px;border:1.5px solid #ccd4e0;
  margin-top:2px;display:flex;align-items:center;justify-content:center;
  font-size:11px;color:#fff;line-height:1;font-weight:700;transition:all .16s;
}
.case-check .pt .tx{flex:1}
.case-check .pt.on{border-color:#8cc7ac;background:var(--ok-soft)}
.case-check .pt.on .box{background:linear-gradient(145deg,#3d9670,#266a4e);border-color:transparent}
.case-check .pt.on .tx{color:var(--ink)}

/* 断点续做卡片 */
.resume-card{
  background:linear-gradient(135deg,#fff 0%,var(--field) 100%);
  border-radius:18px;padding:16px 17px;margin-bottom:16px;
  box-shadow:var(--sh);border:1px solid rgba(217,154,43,.28);
  position:relative;overflow:hidden;
}
.resume-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,#e8b45a,#d99a2b);
}
.resume-card .rc-top{display:flex;align-items:center;margin-bottom:8px}
.resume-card .rc-k{
  font-size:10.5px;letter-spacing:.6px;color:var(--warn);font-weight:700;
  background:var(--warn-soft);padding:3px 9px;border-radius:6px;
}
.resume-card .rc-x{margin-left:auto;color:var(--ink3);font-size:14px;padding:2px 6px;line-height:1}
.resume-card .rc-title{font-size:15.5px;font-weight:700}
.resume-card .rc-meta{font-size:12px;color:var(--ink3);margin-top:3px}
.resume-card .rc-q{
  font-size:12.5px;color:var(--ink2);margin-top:10px;background:#fff;
  padding:9px 11px;border-radius:10px;line-height:1.62;border:1px solid var(--line2);
}

.hint-line{font-size:12px;color:var(--ink3);margin:0 4px 12px;line-height:1.6}

/* 外观设置分段器 */
.segs{display:flex;gap:4px;background:var(--field);padding:3px;border-radius:10px}
.seg{
  font-size:12px;padding:5px 10px;border-radius:8px;color:var(--ink2);font-weight:550;
  transition:all .18s;
}
.seg.on{
  background:#fff;color:var(--pri);font-weight:700;
  box-shadow:0 1px 4px rgba(21,31,46,.12);
}

.wq .foot .lk + .lk{margin-left:10px}

/* 数据隐私说明 */
.privacy-note{
  font-size:12.5px;line-height:1.8;color:var(--ink2);
  background:linear-gradient(135deg,var(--field),#fff);
  border:1px solid var(--line2);border-left:3px solid var(--pri2);
  border-radius:0 12px 12px 0;padding:12px 14px;margin:14px 0 0;
}
.privacy-note b{color:var(--ink);font-weight:650}

/* ---------- 深色模式 ---------- */
[data-theme="dark"]{
  --bg:#0e131b;--card:#151c26;--ink:#e9eef6;--ink2:#a7b2c2;--ink3:#6e7c8e;
  --line:#242f3f;--line2:#1d2733;--field:#1a2331;
  --pri:#5b8fc9;--pri2:#7aa8d8;--pri-soft:#1b2938;
  --accent:#d0854f;--ok:#4fa87f;--ok-soft:#152a22;
  --bad:#d4695c;--bad-soft:#2b1b1b;--warn:#d9a441;--warn-soft:#2b2417;
  --sh:0 1px 2px rgba(0,0,0,.35),0 10px 28px -14px rgba(0,0,0,.65);
  --sh-lg:0 2px 4px rgba(0,0,0,.4),0 20px 48px -18px rgba(0,0,0,.75);
}
[data-theme="dark"] body{
  background:
    radial-gradient(1200px 420px at 50% -180px, rgba(58,110,165,.14), transparent 70%),
    var(--bg);
}
[data-theme="dark"] .topbar{background:rgba(14,19,27,.82)}
[data-theme="dark"] .quiz-head{background:rgba(14,19,27,.86)}
[data-theme="dark"] .quiz-actions{background:rgba(21,28,38,.9)}
[data-theme="dark"] .tabbar{background:rgba(21,28,38,.92)}
[data-theme="dark"] .sheet{background:var(--card)}
[data-theme="dark"] .sheet .grid button{background:var(--field);color:var(--ink2)}
[data-theme="dark"] .tag.ch{background:var(--field);color:var(--ink3);border-color:var(--line2)}
[data-theme="dark"] .tag-star{color:#4d5a6b}
[data-theme="dark"] .btn.ghost{background:var(--field);color:var(--ink2)}
[data-theme="dark"] .btn.line{background:var(--card);color:var(--ink2)}
[data-theme="dark"] .opt{background:var(--card)}
[data-theme="dark"] .opt .k{background:var(--field);color:var(--ink3)}
[data-theme="dark"] .opt.picked{background:#1a2c40}
[data-theme="dark"] .opt.miss{background:#152420}
[data-theme="dark"] .analysis{background:linear-gradient(160deg,var(--field),var(--card));border-left-color:var(--pri2)}
[data-theme="dark"] .analysis p,[data-theme="dark"] .case-answer{color:#c5cfdd}
[data-theme="dark"] .q-bg{background:linear-gradient(135deg,var(--field),var(--card))}
[data-theme="dark"] .res-grid div,[data-theme="dark"] .case-check .pt{background:var(--card)}
[data-theme="dark"] .ov{background:linear-gradient(160deg,var(--field),var(--card))}
[data-theme="dark"] .case-check .pt.on{background:var(--ok-soft)}
[data-theme="dark"] .dialog .box{background:var(--card)}
[data-theme="dark"] .dialog input[type=date],[data-theme="dark"] .dialog input[type=text]{background:var(--field);color:var(--ink)}
[data-theme="dark"] .crow:active{background:var(--field)}
[data-theme="dark"] .hero{background:linear-gradient(148deg,#0f1e30 0%,#17304e 48%,#204d75 100%)}
[data-theme="dark"] .result-hero{background:linear-gradient(160deg,var(--card) 0%,var(--field) 100%)}
[data-theme="dark"] .resume-card{background:linear-gradient(135deg,var(--card) 0%,var(--field) 100%)}
[data-theme="dark"] .resume-card .rc-q{background:var(--field)}
[data-theme="dark"] .stat{border-color:var(--line2)}
[data-theme="dark"] .subj,[data-theme="dark"] .list,[data-theme="dark"] .wq,[data-theme="dark"] .card{border-color:var(--line2)}
[data-theme="dark"] .seg.on{background:var(--field);color:var(--pri2)}
[data-theme="dark"] .mask{background:rgba(0,0,0,.62)}
[data-theme="dark"] .subj .badge.fg{background:linear-gradient(145deg,#3f6399,#2a4670)}
[data-theme="dark"] .bar i{background:linear-gradient(90deg,#4a7ab0,#7aa8d8)}
[data-theme="dark"] .qh-bar i,[data-theme="dark"] .mini-bar i{background:linear-gradient(90deg,#4a7ab0,#7aa8d8)}

/* ---------- 字号档位 ---------- */
html[data-fs="sm"] body{font-size:14px}
html[data-fs="sm"] .q-text{font-size:14.5px}
html[data-fs="sm"] .opt .v{font-size:13.5px}
html[data-fs="lg"] body{font-size:16px}
html[data-fs="lg"] .q-text{font-size:17.5px}
html[data-fs="lg"] .opt .v{font-size:15.5px}
html[data-fs="lg"] .analysis p,
html[data-fs="lg"] .case-answer,
html[data-fs="lg"] .case-mine{font-size:15px}
html[data-fs="lg"] .wq .txt{font-size:15px}