/* ===========================================================
   肖爸三维赋能 · 学习诊断与规划中心
   设计基底：暖纸白 + 墨黑 + 三维三色（心态橙 / 方法青 / 环境靛）
   =========================================================== */

:root{
  --paper:#F8F6F1;
  --paper-2:#F2EEE6;
  --card:#FFFFFF;
  --ink:#171A20;
  --ink-2:#3C424D;
  --muted:#7A808B;
  --faint:#A8ADB6;
  --line:#E5DFD3;
  --line-soft:#EFEAE1;

  --mind:#DE6A34;        /* 心态维 */
  --method:#2F8F7B;      /* 方法维 */
  --env:#20456B;         /* 环境维 */
  --mind-soft:#FBEAE0;
  --method-soft:#E3F1ED;
  --env-soft:#E5ECF4;
  --danger:#B7432C;

  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --shadow:0 1px 2px rgba(23,26,32,.04), 0 14px 34px -24px rgba(23,26,32,.28);
  --shadow-hover:0 2px 4px rgba(23,26,32,.05), 0 20px 44px -26px rgba(23,26,32,.34);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font);font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 100% -10%, rgba(222,106,52,.06), transparent 60%),
    radial-gradient(800px 600px at -10% 110%, rgba(32,69,107,.05), transparent 60%);
}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

/* ---------------- 布局 ---------------- */
.app{position:relative;display:grid;grid-template-columns:238px minmax(0,1fr);min-height:100vh;z-index:1}

.sidebar{
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  padding:26px 18px 20px;border-right:1px solid var(--line);
  background:linear-gradient(180deg,#FBF9F5,#F6F2EA);
}
.brand{display:flex;gap:11px;align-items:center;padding:0 8px 22px}
.brand .mark{flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:15px;letter-spacing:.02em}
.brand-text i{font-style:normal;font-size:10.5px;color:var(--muted);letter-spacing:.08em}

.nav{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.nav a{
  display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:9px;
  font-size:14px;color:var(--ink-2);transition:.16s;position:relative;
}
.nav a .idx{font-family:var(--mono);font-size:10.5px;color:var(--faint);letter-spacing:.04em}
.nav a:hover{background:#F0EBE1;color:var(--ink)}
.nav a.active{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 0 var(--line),0 6px 18px -14px rgba(0,0,0,.35)}
.nav a.active .idx{color:var(--mind)}
.nav a.active::before{content:"";position:absolute;left:-18px;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--mind)}

.side-foot{position:sticky;bottom:16px;margin-top:auto;padding:14px;float 14px;border:1px solid var(--line);border-radius:12px;background:#fff}
.side-foot p{font-size:12px;color:var(--muted);line-height:1.65}
.side-foot b{color:var(--ink);font-size:12px;display:block;margin-bottom:4px}
.nav a.back-link{margin-top:10px;opacity:.75}
.nav a.back-link:hover{opacity:1}

.main{min-width:0;display:flex;flex-direction:column}
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 34px;background:rgba(248,246,241,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.crumb{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.crumb b{color:var(--ink);letter-spacing:0;text-transform:none;font-size:13px;margin-left:8px}
.top-actions{display:flex;align-items:center;gap:10px}

.seg{display:flex;padding:3px;background:var(--paper-2);border-radius:999px;border:1px solid var(--line)}
.seg button{
  border:0;background:transparent;padding:5px 13px;border-radius:999px;
  font-size:12.5px;color:var(--muted);cursor:pointer;transition:.15s;
}
.seg button.on{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08)}

.wrap{padding:34px;max-width:1180px;width:100%;margin:0 auto;flex:1}
.view{display:none}
.view.on{display:block;animation:fade .34s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------------- 通用组件 ---------------- */
.eyebrow{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);display:flex;align-items:center;gap:9px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--mind)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000;transform:translateY(-1px);box-shadow:0 10px 24px -14px rgba(0,0,0,.6)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-mind{background:var(--mind);color:#fff}
.btn-mind:hover{background:#c95c2a}
.btn-sm{padding:7px 14px;font-size:12.5px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.pad{padding:24px}
.pad-lg{padding:30px}

.sec{margin-top:46px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}
.sec-head h2{font-size:22px}
.sec-head p{font-size:13px;color:var(--muted);margin-top:6px;max-width:56ch}
.sec-head .more{font-size:12.5px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:1px}
.sec-head .more:hover{color:var(--ink);border-color:var(--ink)}

/* ---------------- 首页 ---------------- */
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center;padding-top:10px}
.hero h1{font-size:clamp(30px,4vw,46px);letter-spacing:-.03em;margin:14px 0 0}
.hero h1 em{font-style:normal;color:var(--mind)}
.lede{margin-top:16px;font-size:15px;color:var(--ink-2);max-width:52ch}
.lede b{font-weight:600;color:var(--ink);box-shadow:inset 0 -.5em 0 var(--mind-soft)}
.hero-actions{display:flex;gap:11px;margin-top:24px;flex-wrap:wrap}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-size:24px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.hero-stats span{font-size:11.5px;color:var(--muted);margin-top:1px}

.hero-panel{padding:22px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.panel-head b{font-size:13px}
.panel-head span{font-size:10.5px;font-family:var(--mono);color:var(--faint);letter-spacing:.1em}

.gauge{margin-bottom:15px}
.gauge-top{display:flex;justify-content:space-between;align-items:baseline;font-size:12.5px;margin-bottom:6px}
.gauge-top em{font-style:normal;color:var(--muted)}
.gauge-top b{font-variant-numeric:tabular-nums;font-size:13px}
.track{height:7px;border-radius:999px;background:var(--paper-2);overflow:hidden;display:flex}
.track i{display:block;height:100%;border-radius:999px;transition:width .8s cubic-bezier(.2,.8,.2,1)}

.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step-card{padding:22px;border-radius:var(--r);border:1px solid var(--line);background:#fff;position:relative;transition:.2s}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D8D1C3}
.step-card .num{font-family:var(--mono);font-size:11px;color:var(--mind);letter-spacing:.1em}
.step-card h3{font-size:16px;margin:9px 0 7px}
.step-card p{font-size:13px;color:var(--muted);line-height:1.7}
.step-card .tag{display:inline-block;margin-top:14px;font-size:11px;padding:3px 9px;border-radius:999px;background:var(--paper-2);color:var(--ink-2)}

.bench-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.bench{position:relative;padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;overflow:hidden;transition:.2s}
.bench:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.bench::after{content:"";position:absolute;right:-40px;top:-40px;width:150px;height:150px;border-radius:50%;opacity:.1}
.bench.jr::after{background:var(--method)}
.bench.sr::after{background:var(--env)}
.bench .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted)}
.bench h3{font-size:20px;margin:8px 0 8px}
.bench p{font-size:13px;color:var(--muted);max-width:44ch}
.bench .mini{display:flex;gap:20px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft)}
.bench .mini div{display:flex;flex-direction:column}
.bench .mini b{font-size:18px;font-variant-numeric:tabular-nums}
.bench .mini span{font-size:11px;color:var(--muted)}
.bench .go{position:absolute;right:24px;bottom:26px;font-size:12.5px;font-weight:600;color:var(--ink)}
.bench .go::after{content:" →"}

.proof{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:26px;border-radius:var(--r-lg);background:var(--ink);color:#fff}
.proof div{border-left:2px solid rgba(255,255,255,.16);padding-left:16px}
.proof b{display:block;font-size:22px;letter-spacing:-.02em;color:#fff}
.proof b span{font-size:12px;font-weight:400;color:rgba(255,255,255,.55);margin-left:2px}
.proof p{font-size:12px;color:rgba(255,255,255,.62);margin-top:4px;line-height:1.6}

/* ---------------- 诊断 ---------------- */
.stepper{display:flex;gap:0;margin:22px 0 26px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.stepper div{
  flex:1;padding:13px 16px;font-size:12.5px;color:var(--muted);position:relative;
  border-right:1px solid var(--line-soft);display:flex;align-items:center;gap:8px;
}
.stepper div:last-child{border-right:0}
.stepper div i{font-family:var(--mono);font-style:normal;font-size:10.5px;color:var(--faint)}
.stepper div.on{background:var(--ink);color:#fff}
.stepper div.on i{color:rgba(255,255,255,.5)}
.stepper div.done{color:var(--method);font-weight:600}
.stepper div.done i{color:var(--method)}

.qblock{margin-bottom:26px}
.qblock-head{display:flex;align-items:baseline;gap:10px;margin-bottom:4px}
.qblock-head h3{font-size:16px}
.qblock-head span{font-size:12px;color:var(--muted)}
.qblock-desc{font-size:12.5px;color:var(--muted);margin-bottom:16px;max-width:64ch}

.qlist{display:flex;flex-direction:column;gap:2px}
.qrow{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;padding:12px 14px;border-radius:10px;transition:.15s}
.qrow:nth-child(odd){background:#FCFBF8}
.qrow p{font-size:13.5px;color:var(--ink-2);line-height:1.55}
.opts{display:flex;gap:5px}
.opts button{
  width:34px;height:30px;border-radius:8px;border:1px solid var(--line);background:#fff;
  font-size:12px;color:var(--muted);cursor:pointer;transition:.14s;font-variant-numeric:tabular-nums;
}
.opts button:hover{border-color:var(--faint);color:var(--ink)}
.opts button.on{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.opts.scale6 button{width:44px}
.opt-legend{display:flex;justify-content:flex-end;gap:5px;font-size:10.5px;color:var(--faint);margin-bottom:6px;padding-right:2px}
.opt-legend span{width:34px;text-align:center}

.diag-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:8px;padding-top:22px;border-top:1px solid var(--line)}
.hintline{font-size:12px;color:var(--muted)}

/* 报告 */
.report-top{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.diag-type{padding:28px;border-radius:var(--r-lg);background:var(--ink);color:#fff;position:relative;overflow:hidden}
.diag-type::after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;right:-70px;bottom:-90px;background:radial-gradient(circle,rgba(222,106,52,.5),transparent 70%)}
.diag-type .tag{position:relative;z-index:1;display:inline-block;font-size:11px;padding:4px 11px;border-radius:999px;background:rgba(255,255,255,.14);letter-spacing:.06em}
.diag-type h2{position:relative;z-index:1;font-size:26px;margin:14px 0 10px;letter-spacing:-.02em}
.diag-type p{font-size:13.5px;color:rgba(255,255,255,.72);max-width:40ch;position:relative;z-index:1}
.diag-type .sub{position:relative;z-index:1;margin-top:18px;display:flex;gap:22px;font-size:12px;color:rgba(255,255,255,.55)}

.radar-card{padding:20px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;align-items:center}
.radar-card b{font-size:12.5px;align-self:flex-start;margin-bottom:2px}

.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.metric{padding:18px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.metric span{font-size:11.5px;color:var(--muted)}
.metric b{display:block;font-size:26px;margin-top:4px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.metric b i{font-style:normal;font-size:12px;color:var(--faint);font-weight:400;margin-left:2px}

.pillar-rank{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.pr{display:grid;grid-template-columns:26px 1fr auto;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff}
.pr .n{font-family:var(--mono);font-size:11px;color:var(--faint)}
.pr b{font-size:13.5px}
.pr p{font-size:12px;color:var(--muted);margin-top:2px}
.pr .score{font-size:12px;font-weight:700;color:var(--danger)}

.ratio{display:flex;flex-direction:column;gap:14px}
.ratio-row{display:grid;grid-template-columns:64px 1fr 46px;gap:12px;align-items:center;font-size:12.5px}
.ratio-row .bar{height:9px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.ratio-row .bar i{display:block;height:100%;border-radius:999px}
.ratio-row b{text-align:right;font-variant-numeric:tabular-nums}

.advice li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:13.5px;color:var(--ink-2)}
.advice li:last-child{border-bottom:0}
.advice li i{font-family:var(--mono);font-style:normal;font-size:11px;color:var(--mind);padding-top:3px}

/* ---------------- 规划 ---------------- */
.plan-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 26px;border-radius:var(--r-lg);background:var(--ink);color:#fff;margin-bottom:24px}
.plan-bar h2{font-size:19px}
.plan-bar p{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:5px}
.plan-bar .right{display:flex;align-items:center;gap:22px}
.plan-bar .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#fff}

.week{margin-bottom:16px;border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.week-head{display:flex;align-items:center;gap:14px;padding:16px 22px;background:#FCFBF8;border-bottom:1px solid var(--line-soft)}
.week-head .wk{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--mind)}
.week-head h3{font-size:15px;flex:1}
.week-head .pct{font-size:11.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.tasks{padding:8px 12px 12px}
.task{display:grid;grid-template-columns:22px 1fr auto;gap:12px;align-items:flex-start;padding:12px 10px;border-radius:10px;cursor:pointer;transition:.15s}
.task:hover{background:#FBFAF6}
.task input{display:none}
.box{width:19px;height:19px;border-radius:6px;border:1.5px solid var(--line);margin-top:2px;display:flex;align-items:center;justify-content:center;transition:.16s;background:#fff}
.task.done .box{background:var(--method);border-color:var(--method)}
.task.done .box::after{content:"";width:9px;height:5px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translate(1px,-1px)}
.task.done .t-title{text-decoration:line-through;color:var(--faint)}
.t-title{font-size:13.5px;font-weight:600;line-height:1.5}
.t-desc{font-size:12px;color:var(--muted);margin-top:3px;line-height:1.6}
.t-meta{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;padding-top:2px}
.chip{font-size:10.5px;padding:2px 8px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.chip.mind{background:var(--mind-soft);color:#A8501F}
.chip.method{background:var(--method-soft);color:#1E6B5B}
.chip.env{background:var(--env-soft);color:#1B3B5C}

.empty{padding:48px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r);background:#fff}
.empty h3{font-size:15px;margin-bottom:8px}
.empty p{font-size:13px;color:var(--muted);margin-bottom:18px}

/* ---------------- 工作台 ---------------- */
.ws-head{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end;padding-bottom:22px;border-bottom:1px solid var(--line)}
.ws-head h1{font-size:30px;letter-spacing:-.025em;margin-top:10px}
.ws-head p{font-size:13.5px;color:var(--muted);margin-top:10px;max-width:60ch}

.filters{display:flex;gap:7px;flex-wrap:wrap;margin:22px 0 4px}
.filters button{border:1px solid var(--line);background:#fff;padding:6px 13px;border-radius:999px;font-size:12.5px;color:var(--ink-2);cursor:pointer;transition:.15s}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}

.paper{display:grid;grid-template-columns:1fr;gap:0;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-top:16px;overflow:hidden}
.paper-head{display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;padding:16px 20px;cursor:pointer}
.paper-head:hover{background:#FCFBF8}
.paper-head .tt{display:flex;align-items:center;gap:12px}
.paper-head h4{font-size:14.5px}
.paper-head .meta{font-size:11.5px;color:var(--muted);margin-top:2px}
.dots{display:flex;gap:4px}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--line);display:block;transition:.2s}
.dots i.on{background:var(--method)}
.paper-head .pctxt{font-size:11.5px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:38px;text-align:right}
.paper-body{display:none;padding:6px 20px 20px;border-top:1px solid var(--line-soft);background:#FDFCFA}
.paper.open .paper-body{display:block}
.step5{display:flex;flex-direction:column;gap:0}
.st5{display:grid;grid-template-columns:26px 1fr auto;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line-soft);align-items:flex-start}
.st5:last-child{border-bottom:0}
.st5 .sn{width:24px;height:24px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:11px;font-family:var(--mono);color:var(--muted);background:#fff}
.st5.done .sn{background:var(--method);border-color:var(--method);color:#fff}
.st5 b{font-size:13px;display:block}
.st5 p{font-size:12px;color:var(--muted);margin-top:3px;line-height:1.65}
.st5 .ck{border:1px solid var(--line);background:#fff;border-radius:8px;padding:4px 11px;font-size:11.5px;color:var(--muted);cursor:pointer}
.st5.done .ck{background:var(--method-soft);border-color:#BFDDD5;color:#1E6B5B}

.tool{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;margin-top:22px}
.tool-box{padding:24px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.tool-box h3{font-size:15px;margin-bottom:4px}
.tool-box .sub{font-size:12px;color:var(--muted);margin-bottom:16px}

textarea,input[type=text],input[type=number],select{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:13.5px;color:var(--ink);background:#FCFBF8;outline:none;transition:.15s;
}
textarea:focus,input:focus,select:focus{border-color:var(--ink);background:#fff}
textarea{resize:vertical;min-height:92px;line-height:1.7}

.dual-src{padding:16px;border-radius:12px;background:var(--paper-2);font-size:14px;line-height:1.8;margin-bottom:14px}
.dual-src .lab{font-size:10.5px;font-family:var(--mono);letter-spacing:.12em;color:var(--muted);display:block;margin-bottom:6px}
.coverage{display:flex;align-items:center;gap:14px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line-soft)}
.coverage .big{font-size:30px;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.coverage .big small{font-size:13px;color:var(--faint);font-weight:400}
.miss{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.miss span{font-size:11.5px;padding:3px 9px;border-radius:6px;background:var(--mind-soft);color:#A8501F;font-family:var(--mono)}
.miss span.ok{background:var(--method-soft);color:#1E6B5B}

.vocab-ring{display:flex;align-items:center;gap:22px}
.vocab-ring .num{font-size:34px;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.vocab-ring .num small{font-size:14px;color:var(--faint);font-weight:400}

.acc{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:10px;overflow:hidden}
.acc-h{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;cursor:pointer;font-size:13.5px;font-weight:600}
.acc-h span{font-family:var(--mono);font-size:14px;color:var(--faint);font-weight:400}
.acc-b{display:none;padding:0 18px 18px;font-size:13px;color:var(--ink-2);line-height:1.75}
.acc.open .acc-b{display:block}
.acc.open .acc-h span{transform:rotate(45deg)}
.acc-b ol{padding-left:18px;margin:6px 0 0}
.acc-b li{margin-bottom:5px}

/* ---------------- 方法库 ---------------- */
.mgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.mcard{padding:26px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;transition:.2s}
.mcard:hover{box-shadow:var(--shadow-hover)}
.mcard .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted)}
.mcard h3{font-size:17px;margin:9px 0 10px}
.mcard p{font-size:13px;color:var(--ink-2);line-height:1.78}
.mcard ul{margin-top:12px}
.mcard li{font-size:12.5px;color:var(--muted);padding-left:16px;position:relative;margin-bottom:5px;line-height:1.65}
.mcard li::before{content:"";position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:var(--mind)}

.quote{padding:26px 30px;border-radius:var(--r-lg);background:linear-gradient(120deg,#1B1E25,#2A2F38);color:#fff;margin-top:22px}
.quote p{font-size:17px;line-height:1.8;letter-spacing:-.01em}
.quote span{display:block;font-size:12px;color:rgba(255,255,255,.5);margin-top:12px}

.table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.table th{text-align:left;padding:12px 16px;background:#FCFBF8;font-size:11.5px;color:var(--muted);font-weight:600;letter-spacing:.04em;border-bottom:1px solid var(--line)}
.table td{padding:12px 16px;border-bottom:1px solid var(--line-soft);color:var(--ink-2);vertical-align:top}
.table tr:last-child td{border-bottom:0}
.table td b{color:var(--ink)}

/* ---------------- 档案 ---------------- */
.stat4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{padding:22px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.stat .lab{font-size:11.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.stat .val{font-size:30px;font-weight:700;letter-spacing:-.03em;margin-top:6px;font-variant-numeric:tabular-nums}
.stat .val small{font-size:13px;color:var(--faint);font-weight:400;margin-left:3px}

.err-row{display:grid;grid-template-columns:auto 1fr auto;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.err-row:last-child{border-bottom:0}
.err-row .q{font-size:13px;line-height:1.65}
.err-row .q em{font-style:normal;display:block;font-size:11.5px;color:var(--muted);margin-top:3px}
.err-row .del{border:0;background:none;color:var(--faint);cursor:pointer;font-size:12px}
.err-row .del:hover{color:var(--danger)}

.bars{display:flex;flex-direction:column;gap:11px}
.brow{display:grid;grid-template-columns:58px 1fr 32px;gap:12px;align-items:center;font-size:12.5px}
.brow .bt{height:8px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.brow .bt i{display:block;height:100%;border-radius:999px;background:var(--mind)}

.site-foot{padding:22px 34px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:11.5px;color:var(--faint)}

.report-split{display:grid;grid-template-columns:1fr 1.2fr;gap:18px}
#errForm{display:grid;grid-template-columns:1fr 120px 120px auto;gap:10px}

@media (max-width:1080px){
  .hero{grid-template-columns:1fr;gap:26px}
  .report-top{grid-template-columns:1fr}
  .tool{grid-template-columns:1fr}
  .steps3,.bench-grid,.mgrid,.proof,.metrics,.stat4{grid-template-columns:1fr 1fr}
  .report-split{grid-template-columns:1fr}
}
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .sidebar{position:sticky;top:0;height:auto;flex-direction:row;align-items:center;padding:12px 16px;overflow-x:auto;gap:16px;border-right:0;border-bottom:1px solid var(--line);z-index:30}
  .brand{padding:0;flex:0 0 auto}
  .brand-text i{display:none}
  .nav{flex-direction:row;gap:4px;margin:0}
  .nav a{white-space:nowrap;padding:7px 10px;font-size:13px}
  .nav a .idx{display:none}
  .nav a.active::before{display:none}
  .side-foot{display:none}
  .nav a.back-link{margin-top:0;margin-left:auto}
  .wrap{padding:20px 18px}
  .topbar{position:sticky;top:0;padding:10px 18px}
  .steps3,.bench-grid,.mgrid,.proof,.metrics,.stat4{grid-template-columns:1fr}
  #errForm{grid-template-columns:1fr}
  .ratio-row{grid-template-columns:52px 1fr 42px}
  .qrow{grid-template-columns:1fr;gap:8px}
  .opt-legend{display:none}
  .stepper{overflow-x:auto}
  .stepper div{white-space:nowrap;font-size:11.5px;padding:11px 12px}
  .plan-bar{flex-direction:column;align-items:flex-start}
  .ws-head{grid-template-columns:1fr}
}

@media print{
  .sidebar,.topbar,.site-foot,.no-print{display:none!important}
  .app{display:block}
  .wrap{padding:0;max-width:100%}
  body{background:#fff}
  .view{display:none!important}
  .view.on{display:block!important}
  .card,.diag-type,.radar-card{break-inside:avoid;box-shadow:none}
}

/* =====================================================================
   v3 家长友好重构 — 结构清晰、导航明确、少 AI 味
   追加到 style.css 末尾；tools/apply_style_v3.py 幂等注入
   ===================================================================== */

/* ---------- 0. 基础可读性 ---------- */
body{font-size:15.5px;line-height:1.75}

/* ---------- 1. 侧栏：分组 + 更大点击区 ---------- */
.sidebar{min-height:0}
.nav{gap:3px;margin-top:2px}
.nav a{padding:11px 12px;font-size:14.5px;min-height:44px;border-radius:10px;color:var(--ink-2);transition:.16s}
.nav a:hover{background:#F0EBE1;color:var(--ink)}
.nav a.active{background:#FBE9DF;color:#9A3B14;font-weight:700;box-shadow:inset 3px 0 0 var(--mind)}
.nav a.active .idx{color:var(--mind)}
.nav-label{
  padding:0 12px 6px;margin-top:14px;
  font-size:11px;font-weight:600;color:var(--faint);letter-spacing:.08em;
}
.nav-group + .nav-group{margin-top:4px}
.nav a.back-link{margin-top:8px;background:#F0EBE1;color:var(--ink);font-weight:600;opacity:1}
.nav a.back-link:hover{background:#E7E0D4}

/* 品牌 logo 放大 */
.brand svg{width:46px;height:46px;border-radius:13px;flex:0 0 auto}
.brand-text b{font-size:15.5px}
.brand-text i{font-size:11px;letter-spacing:.06em}

/* 侧栏底注：屏幕不够高时也能滚到 */
.side-foot{position:sticky;bottom:16px;margin-top:auto;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff}
.side-foot p{font-size:12px;color:var(--muted);line-height:1.65}
.side-foot b{color:var(--ink);font-size:12px;display:block;margin-bottom:4px}

/* ---------- 2. 顶栏 ---------- */
.topbar{flex-wrap:wrap;gap:12px;padding:14px 32px;min-height:62px}
.crumb{font-size:12px;color:var(--muted);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.crumb b{color:var(--ink);letter-spacing:0;font-size:14.5px;margin-left:8px}
.top-actions{flex-wrap:wrap;gap:8px}

/* ---------- 3. 子页统一头部 ---------- */
.sub-head{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:end;padding-bottom:16px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.page-title{font-size:clamp(21px,2.6vw,27px);letter-spacing:-.02em;margin-top:2px}
.page-sub{font-size:13.5px;color:var(--muted);margin-top:6px;max-width:60ch;line-height:1.7}
.crumbs{font-size:12px;color:var(--faint);margin-bottom:6px}
.crumbs b{color:var(--muted);font-weight:600}
.page-nav{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.page-nav a{
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  padding:8px 13px;border-radius:10px;font-size:12.5px;transition:.15s;white-space:nowrap;
}
.page-nav a:hover{border-color:var(--ink);background:#FCFBF8}
.page-nav a.on{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.self-nav{margin-bottom:16px;border-bottom:0;padding-bottom:0}
.self-nav > a.on{background:#FBE9DF;border-color:#E8BEA4;color:#9A3B14}

/* ---------- 4. 表格与列表更清楚 ---------- */
.table{font-size:13.5px;border-radius:12px}
.table th{padding:12px 14px;font-size:12px;color:var(--ink-2);background:#F6F2EA;white-space:nowrap}
.table td{padding:13px 14px;line-height:1.65;color:var(--ink-2)}
.table tbody tr:nth-child(even){background:#FDFCF9}
.table tbody tr:hover{background:#F7F3EC}
.bars{gap:9px}
.brow{grid-template-columns:74px 1fr 42px;font-size:12.5px;padding:3px 0}
.brow .bt{height:9px}
#errForm .frm-label{font-size:12.5px;color:var(--muted);display:block;margin-bottom:5px}
#errForm > *{margin-bottom:2px}

/* ---------- 5. 最小字号提升 ---------- */
.hintline{font-size:12.5px}
.opt-legend{font-size:12px}
.opt-legend span{width:44px;text-align:center}
.miss span{font-size:12.5px}
.chip{font-size:12px;padding:3px 9px}
.eyebrow{font-size:12px}
.panel-head span{font-size:11.5px}
.stepper div{font-size:13px;padding:14px 16px}
.stepper div i{font-size:11.5px}

/* ---------- 6. 移动端：隐藏次级顶栏，加大触控区 ---------- */
@media (max-width:860px){
  body{font-size:15px}
  .topbar{display:none}
  .wrap{padding:16px 16px 96px}
  .ws-head{padding-bottom:16px}
  .ws-head h1{font-size:25px;margin-top:8px}
  .ws-head p{font-size:13px;line-height:1.7}
  .hero h1{font-size:31px}
  .sidebar{min-height:0}
  .table{border:0;border-radius:0;background:transparent}
  .table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
  .table tr{display:block;border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:10px;padding:6px 4px}
  .table td{display:flex;gap:12px;border:0;padding:7px 12px;align-items:baseline}
  .table td::before{content:attr(data-col);flex:0 0 78px;font-size:12px;font-weight:700;color:var(--muted)}
  .table td:empty{display:none}
  .filters button{padding:8px 14px;min-height:36px}
  .qrow{padding:14px 10px;border-radius:12px}
  .qrow p{font-size:14px;line-height:1.6}
  .opts{gap:6px;flex-wrap:wrap}
  .opts button{width:42px;height:38px;font-size:13.5px}
  .opts.scale6 button{width:44px}
  .nav a{padding:8px 12px;min-height:40px}
  .st5{grid-template-columns:24px 1fr;row-gap:8px;padding:12px 0}
  .st5 .ck{grid-column:2;justify-self:start;min-height:34px;padding:6px 14px}
  .pr{grid-template-columns:22px 1fr;row-gap:6px;padding:12px}
  .pr .score{grid-column:2;justify-self:start}
  .btn{min-height:44px;padding-block:11px}
  .bottom-cta .btn{min-height:44px}
}

/* ---------- 7. 底部行动条（移动端） ---------- */
.bottom-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  align-items:center;gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(248,246,241,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
@media (max-width:860px){ .bottom-cta{display:flex} }
.bottom-cta .b-txt{font-size:12.5px;color:var(--muted);line-height:1.5;margin-right:auto}
.bottom-cta .b-txt b{color:var(--ink);display:block;font-size:13px}
.bottom-cta .btn{white-space:nowrap;padding-inline:18px}

/* ---------- 8. 打印 ---------- */
@media print{
  .topbar,.bottom-cta{display:none!important}
  .sidebar{display:none!important}
}