/* =============================================================
   支乎 · 看见观点交锋  —  样式
   ============================================================= */
:root{
  --bg:#f6f7f9;
  --bg-deep:#eef2f8;
  --surface:#ffffff;
  --surface-2:#f7f9fc;
  --ink:#1a1a1a;
  --ink-2:#3d4f68;
  --ink-3:#71829a;
  --ink-4:#a3b1c4;
  --line:#e8eef7;
  --line-2:#d8e3f2;
  --blue:#0084ff;
  --blue-deep:#0068d6;
  --blue-ink:#0057b8;
  --blue-soft:#e6f3ff;
  --blue-softer:#f2f8ff;
  --agree:#0084ff;
  --oppose:#ff7a45;
  --green:#22b573;
  --green-soft:#e6f7ef;
  --red:#f05050;
  --red-soft:#fdeaea;
  --amber:#d99a1b;
  --amber-soft:#fdf3e0;
  --purple:#7c5cff;
  --shadow-sm:0 1px 2px rgba(20,40,80,.05),0 1px 1px rgba(20,40,80,.03);
  --shadow-md:0 10px 30px -14px rgba(20,60,140,.22),0 2px 6px rgba(20,40,80,.04);
  --shadow-lg:0 30px 70px -26px rgba(16,50,120,.32);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono","Cascadia Code",Consolas,monospace;
  --topbar-h:64px;
  --nav-h:64px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  font-size:15px;line-height:1.6;
}
button{font-family:inherit;color:inherit;border:0;background:none;cursor:pointer;padding:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
ul{margin:0;padding:0;list-style:none}
[hidden]{display:none !important}

/* ---------------- top bar ---------------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:40;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(1.7) blur(16px);
  -webkit-backdrop-filter:saturate(1.7) blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1080px;margin:0 auto;padding:0 20px;
  height:var(--topbar-h);display:flex;align-items:center;gap:12px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(155deg,#33a1ff 0%,var(--blue) 55%,var(--blue-deep) 100%);
  box-shadow:0 8px 18px -8px rgba(0,132,255,.7),inset 0 1px 0 rgba(255,255,255,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:18px;letter-spacing:.16em;font-weight:800}
.brand-text em{font-style:normal;font-size:10px;color:var(--ink-3);letter-spacing:.22em;margin-top:3px}
.page-title{font-size:17px;font-weight:700;letter-spacing:.02em;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-meta{display:flex;gap:8px;margin-left:auto}
.topbar-tools{display:flex;gap:6px;margin-left:auto}
.brand + .page-title ~ .topbar-meta{margin-left:0}
.icon-btn{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);transition:.18s;flex:0 0 auto;
}
.icon-btn:hover{color:var(--blue-ink);border-color:#bcd9ff;background:var(--blue-softer)}
.icon-btn.is-on{color:#fff;background:var(--blue);border-color:var(--blue)}
.back-btn{background:var(--surface-2)}

.metric{
  min-width:60px;padding:5px 13px;border-radius:12px;text-align:center;
  background:var(--surface-2);border:1px solid var(--line);
}
.metric-num{display:block;font-family:var(--mono);font-size:16px;font-weight:700;color:var(--blue-ink);line-height:1.2}
.metric-label{font-size:10px;color:var(--ink-4);letter-spacing:.12em}
.metric.bump .metric-num{animation:bump .4s ease}
@keyframes bump{0%{transform:scale(1)}40%{transform:scale(1.3);color:var(--blue)}100%{transform:scale(1)}}

.progress-rail{height:3px;background:transparent}
.progress-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,#66b3ff,var(--blue));transition:width .45s cubic-bezier(.4,0,.2,1)}

/* ---------------- app stage ---------------- */
.app{
  max-width:1080px;margin:0 auto;
  padding:calc(var(--topbar-h) + 26px) 20px calc(var(--nav-h) + 40px);
  min-height:100%;
}
.app.no-nav{padding-bottom:40px}
.page{animation:rise .45s cubic-bezier(.22,.9,.28,1) both}
.page.no-anim{animation:none}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------------- bottom nav ---------------- */
.bottomnav{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  display:flex;justify-content:center;
  padding:0 12px calc(12px + env(safe-area-inset-bottom));
  pointer-events:none;
}
.bottomnav-inner{
  pointer-events:auto;
  width:min(520px,100%);
  display:flex;gap:6px;
  padding:7px;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(1.7) blur(18px);
  -webkit-backdrop-filter:saturate(1.7) blur(18px);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:0 18px 42px -18px rgba(20,60,140,.42),0 2px 8px rgba(20,40,80,.06);
}
.nav-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:7px 4px 6px;border-radius:16px;color:var(--ink-4);
  font-size:11px;letter-spacing:.04em;transition:.2s;
}
.nav-item .nav-ico{display:grid;place-items:center;width:34px;height:30px;border-radius:10px;transition:.2s}
.nav-item svg{transition:transform .2s}
.nav-item:hover{color:var(--blue)}
.nav-item.is-active{color:var(--blue-ink);background:var(--blue-soft)}
.nav-item.is-active svg{transform:translateY(-1px) scale(1.06)}
.nav-item.is-active .nav-label{font-weight:700}

/* ---------------- shared bits ---------------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-md);padding:26px 28px;
}
.section-title{font-size:12px;letter-spacing:.2em;color:var(--ink-4);margin:26px 0 12px;font-weight:600}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:13px;
  font-size:14px;font-weight:600;letter-spacing:.02em;transition:.18s;white-space:nowrap;
}
.btn.primary{background:linear-gradient(160deg,#2f9dff,var(--blue));color:#fff;box-shadow:0 12px 24px -12px rgba(0,132,255,.95)}
.btn.primary:hover{background:var(--blue-deep);transform:translateY(-1px)}
.btn.ghost{color:var(--ink-2);border:1.5px solid var(--line-2);background:#fff}
.btn.ghost:hover{border-color:var(--blue);color:var(--blue-ink);background:var(--blue-softer)}
.btn.soft{background:var(--blue-soft);color:var(--blue-ink)}
.btn.soft:hover{background:#d8ecff}
.btn.text{color:var(--ink-3);padding:12px 8px}
.btn.text:hover{color:var(--blue)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.block{width:100%}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;background:var(--blue-softer);border:1px solid var(--line-2);color:var(--ink-2);
}
.pill b{color:var(--blue-ink)}
.hl{background:linear-gradient(transparent 62%,#cfe7ff 62%);font-weight:600;color:var(--ink)}

/* ---------------- home ---------------- */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(150deg,#0a84ff 0%,#0066e0 60%,#0a4fb5 100%);
  color:#fff;padding:44px 40px 40px;box-shadow:0 30px 60px -30px rgba(0,100,220,.7);
  display:flex;align-items:flex-end;gap:0;
}
.hero-inner{position:relative;z-index:1;max-width:480px;flex:1;min-width:0}
.hero-lk{
  position:absolute;right:0;bottom:0;
  width:200px;height:200px;
  flex:0 0 auto;
  display:flex;align-items:flex-end;justify-content:flex-end;
  z-index:2;
  pointer-events:none;
}
.hero-lk-img{
  width:200px;height:200px;
  object-fit:contain;object-position:bottom right;
  display:block;
  transform:scaleX(-1);
  filter:drop-shadow(0 4px 20px rgba(0,0,0,.25));
  mask-image:linear-gradient(to top, rgba(0,0,0,1) 60%, rgba(0,0,0,0) 100%);
  -webkit-mask-image:linear-gradient(to top, rgba(0,0,0,1) 60%, rgba(0,0,0,0) 100%);
}
.hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.hero::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.14),rgba(255,255,255,0) 70%);
}
.hero-inner{position:relative;z-index:1;max-width:620px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.24em;opacity:.9;margin-bottom:16px}
.hero h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:.02em}
.hero h1 .thin{font-weight:300;opacity:.85}
.hero p{margin-top:14px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.9);max-width:520px}
.hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-cta .btn{background:#fff;color:var(--blue-ink);box-shadow:0 14px 30px -14px rgba(0,0,0,.5)}
.hero-cta .btn:hover{transform:translateY(-2px)}
.hero-cta .btn.ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.hero-cta .btn.ghost:hover{background:rgba(255,255,255,.24)}

.home-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.home-tile{
  display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:var(--r-lg);text-align:left;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.2s;
}
.home-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe3ff}
.home-tile .tile-ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--blue);
  background:var(--blue-soft);
}
.home-tile .tile-ico.orange{color:var(--oppose);background:#fff0e9}
.home-tile .tile-ico.green{color:var(--green);background:var(--green-soft)}
.home-tile .tile-ico.purple{color:var(--purple);background:#f0ecff}
.home-tile .tile-ico.amber{color:var(--amber);background:var(--amber-soft)}
.home-tile .tile-name{font-size:15px;font-weight:700}
.home-tile .tile-desc{font-size:12px;color:var(--ink-3);line-height:1.6}

.home-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}

/* home mode entries */
.home-modes{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.mode-entry{
  position:relative;overflow:hidden;display:flex;flex-direction:column;gap:6px;
  padding:26px 26px 24px;border-radius:var(--r-lg);text-align:left;
  background:var(--surface);border:1.5px solid var(--line);box-shadow:var(--shadow-sm);transition:.22s;
}
.mode-entry:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd9ff}
.mode-entry .me-tag{font-size:11px;letter-spacing:.2em;color:var(--blue);font-weight:700}
.mode-entry .me-name{font-size:24px;font-weight:800}
.mode-entry .me-desc{font-size:13.5px;color:var(--ink-3);line-height:1.75;max-width:340px}
.mode-entry .me-go{margin-top:10px;color:var(--blue-ink);font-size:13.5px;font-weight:700}
.mode-entry .me-fox{position:absolute;right:18px;bottom:14px;opacity:.92}
.mode-entry.alt .me-tag{color:var(--oppose)}
.mode-entry.alt .me-go{color:#c74a12}
.mode-entry.alt:hover{border-color:#ffc9b3}

/* quiz category bar */
.quiz-cats{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 14px;scrollbar-width:none}
.quiz-cats::-webkit-scrollbar{display:none}
.qcat-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  font-size:13px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);transition:.18s;white-space:nowrap;
}
.qcat-chip b{font-family:var(--mono);font-size:11px;color:var(--ink-4);font-weight:600}
.qcat-chip:hover{border-color:#bcd9ff;color:var(--blue-ink)}
.qcat-chip.is-on{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
.qcat-chip.is-on b{color:rgba(255,255,255,.8)}
.qcat-chip[disabled]{opacity:.4}

/* ---------------- neutral hint (第一步答完后显示) ---------------- */
.neutral-hint{
  display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap;
}
.nt-btn{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  font-size:12.5px;color:var(--ink-3);background:var(--surface);border:1px solid var(--line);transition:.18s;
}
.nt-btn .nt-dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--line-2);transition:.18s}
.nt-btn:hover{border-color:#bcd9ff;color:var(--blue-ink)}
.nt-btn.is-on{color:var(--blue-ink);border-color:#bcd9ff;background:var(--blue-softer)}
.nt-btn.is-on .nt-dot{background:var(--blue);border-color:var(--blue)}
.nt-val{font-size:12.5px;color:var(--ink-3)}
.nt-val b{color:var(--blue-ink)}

/* ---------------- tri-bar (三分段观点分布条) ---------------- */
.tri-bar-wrap{margin:14px 0 4px}
.tri-labels{
  display:flex;justify-content:space-between;align-items:baseline;
  font-size:12.5px;font-weight:700;color:var(--ink-2);margin-bottom:8px;gap:8px;
}
.tri-lbl.lbl-mid{color:var(--ink-4);font-weight:400;font-size:11px;flex:0 0 auto}
.tri-lbl.lbl-left{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tri-lbl.lbl-right{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right}

.tri-bar{
  display:flex;height:40px;border-radius:12px;overflow:hidden;
  box-shadow:var(--shadow-sm);gap:2px;background:var(--line);
}
.tri-seg{
  display:flex;align-items:center;justify-content:center;
  min-width:0;position:relative;border-radius:10px;
  transition:width .8s cubic-bezier(.22,.9,.28,1);
  flex-shrink:0;
}
.tri-seg .tri-pct{
  font-family:var(--mono);font-size:12px;font-weight:800;color:#fff;
  text-shadow:0 1px 4px rgba(0,0,0,.25);white-space:nowrap;letter-spacing:.02em;
}
.seg-0{background:linear-gradient(135deg,#5ba8ff 0%,#0084ff 100%)}
.seg-1{background:linear-gradient(135deg,#ff9a7a 0%,#ff5722 100%)}
.seg-neu{background:linear-gradient(135deg,#d4dce8 0%,#b8c4d6 100%)}
.seg-neu .tri-pct{color:var(--ink-3);text-shadow:none;font-size:11px}

/* 用户立场：白色内发光描边 */
.seg-0.is-stance,.seg-1.is-stance{
  box-shadow:inset 0 0 0 2.5px rgba(255,255,255,.9);
}
/* 用户预测：黄色外发光 */
.seg-0.is-pred,.seg-1.is-pred{
  box-shadow:inset 0 0 0 2.5px rgba(255,220,0,.85);
}
/* 两者都是 */
.seg-0.is-stance.is-pred,.seg-1.is-stance.is-pred{
  box-shadow:inset 0 0 0 2.5px rgba(255,255,255,.9),inset 0 0 0 5px rgba(255,220,0,.6);
}

.tri-marker-row{display:flex;justify-content:space-between;margin-top:8px;gap:8px}
.tri-m-left{display:flex;gap:5px;flex-wrap:wrap;flex:1}
.tri-m-right{display:flex;gap:5px;flex-wrap:wrap;flex:1;justify-content:flex-end}
.tri-marker{
  display:inline-flex;align-items:center;gap:4px;
  font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;
}
.tri-marker.stance{background:var(--blue-soft);color:var(--blue-ink);border:1px solid #bcd9ff}
.tri-marker.pred{background:var(--amber-soft);color:#8a6000;border:1px solid #f0d080}
.tri-stat-row{font-size:11px;color:var(--ink-4);margin-top:6px;text-align:right;letter-spacing:.04em}

/* b-mark 小尺寸变体（立场对比 banner 用） */
.b-mark-sm{font-size:22px;font-weight:900;letter-spacing:-.02em;background:var(--ink-2) !important}
.banner.ok .b-mark-sm{background:var(--green) !important}
.banner.no .b-mark-sm{background:var(--red) !important}
.stat-box{padding:16px 18px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);text-align:center}
.stat-box .sv{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--blue-ink)}
.stat-box .sk{font-size:11.5px;color:var(--ink-4);margin-top:2px;letter-spacing:.05em}

/* ---------------- page header ---------------- */
.page-head{margin-bottom:20px}
.page-head h2{font-size:26px;font-weight:800;letter-spacing:.01em}
.page-head p{margin-top:8px;font-size:13.5px;color:var(--ink-3);line-height:1.75}
.crumb{font-size:12px;color:var(--ink-4);letter-spacing:.14em;margin-bottom:10px}

/* ---------------- mode select ---------------- */
.mode-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mode-card{
  position:relative;overflow:hidden;text-align:left;padding:26px;border-radius:var(--r-lg);
  background:var(--surface);border:1.5px solid var(--line);box-shadow:var(--shadow-sm);transition:.22s;
}
.mode-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd9ff}
.mode-card .mc-tag{font-size:11px;letter-spacing:.2em;color:var(--blue);font-weight:700}
.mode-card h3{font-size:21px;font-weight:800;margin-top:12px}
.mode-card p{font-size:13px;color:var(--ink-3);line-height:1.8;margin-top:10px}
.mode-card .mc-fox{position:absolute;right:18px;bottom:12px;opacity:.9}
.mode-card.alt .mc-tag{color:var(--oppose)}
.mode-card.alt:hover{border-color:#ffc9b3}
.mode-card .mc-go{margin-top:18px;display:inline-flex;align-items:center;gap:7px;color:var(--blue-ink);font-size:13px;font-weight:700}

/* ---------------- category ---------------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.cat-card{
  display:flex;flex-direction:column;gap:8px;padding:18px;border-radius:var(--r-md);text-align:left;
  background:var(--surface);border:1.5px solid var(--line);transition:.2s;
}
.cat-card:hover{border-color:#bcd9ff;background:var(--blue-softer);transform:translateY(-2px)}
.cat-card .cc-name{font-size:16px;font-weight:700}
.cat-card .cc-count{font-size:11.5px;color:var(--ink-4);font-family:var(--mono)}
.cat-card .cc-emoji{font-size:22px}

/* ---------------- quiz shell ---------------- */
.quiz-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.qcat{font-size:11.5px;font-weight:700;letter-spacing:.16em;color:var(--blue-ink);background:var(--blue-soft);border:1px solid #d6e6ff;padding:4px 11px;border-radius:999px}
.qno{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--ink-4);letter-spacing:.05em}
.qtitle{font-size:25px;line-height:1.45;font-weight:800;letter-spacing:.01em}
.qcontext{margin-top:13px;font-size:13.5px;line-height:1.78;color:var(--ink-3);padding:12px 16px;border-radius:var(--r-sm);background:var(--surface-2);border:1px dashed var(--line-2);border-left:3px solid var(--blue-soft)}
.qcontext b{color:var(--ink-2);font-weight:600}
/* 原问题说明（来自问题页，可折叠） */
.qdesc{margin-top:12px;padding:12px 16px;border-radius:var(--r-sm);background:var(--surface-2);border:1px dashed var(--line-2);border-left:3px solid var(--blue-soft)}
.qdesc-label{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--ink-4);margin-bottom:7px}
.qdesc-body{font-size:13px;line-height:1.78;color:var(--ink-3);white-space:pre-line;overflow-wrap:anywhere}
.qdesc.is-collapsed .qdesc-body{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.qdesc-toggle{margin-top:8px;font-size:12px;font-weight:600;color:var(--blue);background:none;border:none;cursor:pointer;padding:0}
.qdesc-toggle:hover{text-decoration:underline;color:var(--blue-deep)}
.hint-row{display:flex;align-items:center;gap:10px;margin-top:24px;color:var(--ink-3);font-size:13.5px}
.hint-row .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}

/* answers mode1 */
.answers{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}
.answer{
  position:relative;text-align:left;display:flex;flex-direction:column;padding:20px;border-radius:var(--r-md);
  background:var(--surface);border:1.5px solid var(--line);min-height:220px;
  transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;
}
.answer:hover{border-color:#bcd9ff;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.answer[disabled]{cursor:default}
.answer-top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.avatar{width:38px;height:38px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;font-size:15px;font-weight:700;color:#fff;background:linear-gradient(150deg,#6aa6ff,#2f74e8);box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}
.avatar.alt{background:linear-gradient(150deg,#8fb6f5,#4a6fb0)}
.author{display:flex;flex-direction:column;min-width:0}
.author .name{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.author .tag{font-size:11px;color:var(--ink-4);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badge{font-size:10px;font-weight:700;letter-spacing:.05em;padding:2px 7px;border-radius:6px;color:var(--blue-ink);background:var(--blue-soft);border:1px solid #d6e6ff}
.likes{margin-left:auto;flex:0 0 auto;font-family:var(--mono);font-size:14px;font-weight:700;color:var(--ink-4);letter-spacing:.02em;transition:color .3s}
.likes.revealed{color:var(--blue-ink)}
.answer-text{font-size:13.8px;line-height:1.82;color:var(--ink-2);flex:1;white-space:pre-line}
.answer-summary{
  display:flex;gap:8px;align-items:flex-start;margin:0 0 12px;padding:10px 12px;
  border-radius:10px;background:var(--blue-softer);border:1px solid #d6e6ff;
  font-size:13px;line-height:1.7;color:var(--blue-ink);text-align:left;
}
.answer-summary .sum-tag{
  flex:0 0 auto;font-size:10.5px;font-weight:700;letter-spacing:.06em;
  padding:2px 7px;border-radius:6px;background:var(--blue);color:#fff;margin-top:1px;
}
.answer-src{
  display:inline-flex;align-items:center;gap:4px;margin-top:12px;
  font-size:12px;color:var(--blue);text-decoration:none;font-weight:600;
}
.answer-src:hover{text-decoration:underline;color:var(--blue-deep)}
.pick-tag{position:absolute;top:-10px;right:16px;font-size:11px;font-weight:700;letter-spacing:.1em;padding:3px 10px;border-radius:999px;background:var(--blue);color:#fff;box-shadow:0 8px 16px -8px rgba(0,132,255,.9);opacity:0;transform:translateY(4px);transition:.25s}
.answer.is-picked .pick-tag{opacity:1;transform:none}
.answer.is-picked{border-color:var(--blue);background:var(--blue-softer);box-shadow:0 0 0 3px var(--blue-soft)}
.answer.is-winner{border-color:var(--green)}
.answer.is-winner .likes{color:var(--green)}
.answer.is-loser{opacity:.72}
.answer .verdict{position:absolute;top:-11px;left:16px;font-size:11px;font-weight:700;letter-spacing:.08em;padding:3px 10px;border-radius:999px;color:#fff;box-shadow:var(--shadow-sm)}
.verdict.win{background:var(--green)}
.verdict.lose{background:var(--red)}

/* banner */
.banner{display:flex;align-items:center;gap:14px;margin-top:22px;padding:15px 18px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface-2)}
.banner.ok{background:var(--green-soft);border-color:#c6ebd8}
.banner.no{background:var(--red-soft);border-color:#f6d3d4}
.banner .b-mark{width:38px;height:38px;border-radius:11px;flex:0 0 auto;display:grid;place-items:center;color:#fff;font-size:19px;font-weight:800}
.banner.ok .b-mark{background:var(--green)}
.banner.no .b-mark{background:var(--red)}
.banner .b-text strong{display:block;font-size:14.5px}
.banner .b-text span{font-size:12.5px;color:var(--ink-3)}
.banner .b-fox{margin-left:auto}

.agree-step{margin-top:18px}
.agree-step .step-label{font-size:12.5px;color:var(--ink-3);margin-bottom:10px}
.agree-opts{display:flex;gap:10px;flex-wrap:wrap}
.chip{padding:9px 16px;border-radius:999px;border:1.5px solid var(--line-2);background:var(--surface);font-size:13px;color:var(--ink-2);transition:.18s}
.chip:hover{border-color:var(--blue);color:var(--blue-ink);background:var(--blue-softer)}
.chip.is-on{border-color:var(--blue);background:var(--blue-soft);color:var(--blue-ink);font-weight:700}
.q-actions{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.q-actions .spacer{margin-left:auto}

/* 题目注释词（虚线下划 + 气泡解释） */
.term{position:relative;border-bottom:1px dashed var(--blue);cursor:help;color:inherit}
.term:focus{outline:none}
.term-tip{
  position:absolute;left:50%;bottom:calc(100% + 9px);z-index:80;
  transform:translateX(-50%) translateY(4px);
  width:max-content;max-width:260px;min-width:120px;
  background:#1f2a3a;color:#fff;font-size:12px;font-weight:400;line-height:1.6;
  padding:8px 11px;border-radius:9px;text-align:left;white-space:normal;
  box-shadow:0 12px 28px -12px rgba(15,34,66,.65);
  opacity:0;visibility:hidden;pointer-events:none;transition:.16s;
}
.term-tip::after{content:'';position:absolute;left:50%;top:100%;transform:translateX(-50%);border:6px solid transparent;border-top-color:#1f2a3a}
.term:hover .term-tip,.term:focus .term-tip,.term.is-open .term-tip{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* 下一题操作条 / 卡片内跳转 / 标题后“跳转到原问题” */
.q-actions.top-actions{margin-top:16px;padding-top:0;border-top:none;gap:10px}
.answer-links{display:flex;align-items:center;gap:10px;margin:-4px 0 12px}
.answer-links .answer-src{margin-top:0;margin-left:auto}
.answer-time{font-size:11.5px;color:var(--ink-4);letter-spacing:.02em;white-space:nowrap}
.q-link{
  display:inline-block;vertical-align:-3px;margin-left:10px;white-space:nowrap;
  font-size:12.5px;font-weight:600;color:var(--blue);text-decoration:none;
  padding:4px 10px;border-radius:999px;border:1.5px solid #d6e6ff;
  background:var(--blue-softer);transition:.18s;
}
.q-link:hover{border-color:var(--blue);color:var(--blue-deep);background:var(--blue-soft)}
.q-link.is-disabled{color:var(--ink-4);border-color:var(--line);background:var(--surface-2);opacity:.6;cursor:not-allowed}
.answer-src.is-disabled{color:var(--ink-4);opacity:.55;cursor:not-allowed;pointer-events:none;text-decoration:none}

/* mode2 poll */
.poll{margin-top:22px}
.step-block{margin-top:6px}
.step-block + .step-block{margin-top:24px}
.step-label{display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-bottom:12px}
.step-idx{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue-ink);font-size:11.5px;font-weight:800}
.options{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.option{display:flex;align-items:center;gap:12px;padding:15px 18px;border-radius:var(--r-md);border:1.5px solid var(--line);background:var(--surface);text-align:left;font-size:14.5px;font-weight:500;color:var(--ink-2);transition:.18s}
.option:hover{border-color:#bcd9ff;background:var(--blue-softer);transform:translateY(-1px)}
.option .opt-dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--line-2);flex:0 0 auto;transition:.18s;position:relative}
.option.is-on{border-color:var(--blue);background:var(--blue-soft);color:var(--blue-ink);font-weight:700}
.option.is-on .opt-dot{border-color:var(--blue);background:var(--blue)}
.option.is-on .opt-dot::after{content:"";position:absolute;inset:3px;border-radius:50%;background:#fff}
.option[disabled]{cursor:default}
.option.is-mine::after{content:"你的立场";font-size:10.5px;color:var(--blue-ink);margin-left:auto;background:#fff;border:1px solid #d6e6ff;padding:2px 8px;border-radius:999px}

.results{margin-top:26px;animation:rise .45s both}
.result-head{display:flex;align-items:flex-end;gap:14px;margin-bottom:16px}
.result-head .rt{font-size:14.5px;font-weight:700}
.result-head .rs{font-size:12px;color:var(--ink-4);margin-left:auto;font-family:var(--mono)}
.bar-row{display:grid;grid-template-columns:100px 1fr 72px;align-items:center;gap:14px;padding:8px 0}
.bar-name{font-size:13.5px;color:var(--ink-2);text-align:right;white-space:nowrap}
.bar-row.is-top .bar-name{font-weight:800;color:var(--blue-ink)}
.bar-track{height:30px;border-radius:9px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden;position:relative}
.bar-fill{height:100%;width:0;border-radius:8px;background:linear-gradient(90deg,#bcd7ff,#7fb0ff);transition:width .8s cubic-bezier(.22,.9,.28,1)}
.bar-row.is-top .bar-fill{background:linear-gradient(90deg,#4f92ff,var(--blue))}
.bar-row.is-mine .bar-track{box-shadow:inset 0 0 0 1.5px var(--blue-soft)}
.bar-pct{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--ink-2)}
.bar-row.is-top .bar-pct{color:var(--blue-ink)}
.mine-flag{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:10.5px;font-weight:700;color:var(--blue-ink);background:#fff;border:1px solid #d6e6ff;padding:1px 8px;border-radius:999px;z-index:2}

.caliber-toggle{margin-top:16px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.caliber-toggle summary{cursor:pointer;list-style:none;padding:11px 16px;font-size:12.5px;color:var(--ink-3);background:var(--surface-2);display:flex;align-items:center;gap:8px}
.caliber-toggle summary::-webkit-details-marker{display:none}
.caliber-toggle summary::after{content:"展开";margin-left:auto;font-size:11px;color:var(--blue)}
.caliber-toggle[open] summary::after{content:"收起"}
.caliber-table{width:100%;border-collapse:collapse;font-size:12.5px}
.caliber-table th,.caliber-table td{padding:9px 16px;text-align:left;border-top:1px solid var(--line)}
.caliber-table th{color:var(--ink-4);font-weight:500;background:#fff}
.caliber-table td:first-child{font-family:var(--mono);color:var(--blue-ink);font-weight:700;white-space:nowrap}
.caliber-table td:last-child{color:var(--ink-3)}

/* ---------------- result page ---------------- */
.result-hero{text-align:center;padding:38px 26px 30px;border-radius:var(--r-xl);background:linear-gradient(165deg,#ffffff,#f2f8ff);border:1px solid var(--line);box-shadow:var(--shadow-md)}
.result-hero .rh-fox{display:flex;justify-content:center;margin-bottom:14px}
.result-hero h2{font-size:27px;font-weight:800}
.result-hero .sub{margin-top:8px;font-size:14px;color:var(--ink-3)}
.result-hero .big-acc{font-family:var(--mono);font-size:52px;font-weight:800;color:var(--blue-ink);line-height:1;margin-top:18px}
.result-hero .acc-cap{font-size:12px;letter-spacing:.2em;color:var(--ink-4);margin-top:6px}
.result-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}

/* ---------------- report ---------------- */
.report-hero{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.ring{position:relative;width:132px;height:132px;flex:0 0 auto}
.ring svg{transform:rotate(-90deg)}
.ring .ring-txt{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring .ring-num{font-family:var(--mono);font-size:28px;font-weight:800;color:var(--blue-ink);line-height:1}
.ring .ring-cap{font-size:10.5px;color:var(--ink-4);letter-spacing:.1em;margin-top:4px}
.report-summary{flex:1;min-width:220px}
.report-summary h3{font-size:22px;font-weight:800}
.report-summary p{font-size:13px;color:var(--ink-3);line-height:1.8;margin-top:8px}
.report-title-badge{display:inline-flex;align-items:center;gap:7px;margin-top:12px;padding:5px 13px;border-radius:999px;background:var(--blue-soft);border:1px solid #d6e6ff;color:var(--blue-ink);font-size:12.5px;font-weight:700}
.report-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.report-stat{padding:14px 16px;border-radius:var(--r-sm);background:var(--surface-2);border:1px solid var(--line)}
.report-stat .v{font-family:var(--mono);font-size:20px;font-weight:800}
.report-stat .k{font-size:11.5px;color:var(--ink-4);margin-top:3px;letter-spacing:.05em}
.report-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.tag-pill{padding:7px 14px;border-radius:999px;font-size:12.5px;background:var(--blue-softer);border:1px solid var(--line-2);color:var(--ink-2)}
.tag-pill b{color:var(--blue-ink)}

/* spectrum */
.spectrum{display:flex;flex-direction:column;gap:16px}
.spec-row .spec-labels{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-3);margin-bottom:7px}
.spec-row .spec-labels b{color:var(--ink-2)}
.spec-track{position:relative;height:10px;border-radius:999px;background:linear-gradient(90deg,#dbe9ff,#eef3fb,#ffe3d6);border:1px solid var(--line)}
.spec-dot{position:absolute;top:50%;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--blue);transform:translate(-50%,-50%);box-shadow:var(--shadow-sm);transition:left .8s cubic-bezier(.22,.9,.28,1)}
.spec-note{margin-top:6px;font-size:11.5px;color:var(--ink-4)}

/* radar */
.radar-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}
.radar svg{display:block;width:100%;height:auto;max-width:300px;margin:0 auto}
.radar-legend{display:flex;flex-direction:column;gap:10px}
.radar-legend .rl-item{display:grid;grid-template-columns:76px 1fr 40px;align-items:center;gap:10px;font-size:12.5px}
.radar-legend .rl-track{height:8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}
.radar-legend .rl-fill{height:100%;width:0;background:linear-gradient(90deg,#7fb0ff,var(--blue));border-radius:999px;transition:width .8s cubic-bezier(.22,.9,.28,1)}
.radar-legend .rl-val{font-family:var(--mono);color:var(--ink-3);text-align:right}

/* achievements */
.ach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.ach{display:flex;gap:12px;align-items:flex-start;padding:15px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);transition:.2s}
.ach.locked{opacity:.5;filter:grayscale(1)}
.ach .ach-ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:20px;background:var(--amber-soft);flex:0 0 auto}
.ach .ach-name{font-size:13.5px;font-weight:700}
.ach .ach-desc{font-size:11.5px;color:var(--ink-4);margin-top:3px;line-height:1.55}

/* lock */
.locked-panel{text-align:center;padding:44px 30px}
.locked-panel .lock-ico{width:60px;height:60px;border-radius:18px;margin:0 auto 16px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue)}
.locked-panel h3{font-size:20px;font-weight:800}
.locked-panel p{margin-top:8px;font-size:13.5px;color:var(--ink-3);line-height:1.8}
.progress-inline{max-width:320px;margin:20px auto 0;height:8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}
.progress-inline span{display:block;height:100%;background:linear-gradient(90deg,#7fb0ff,var(--blue));border-radius:999px;transition:width .6s}

/* ---------------- ranking ---------------- */
.tabs{display:flex;gap:6px;padding:4px;border-radius:13px;background:var(--surface-2);border:1px solid var(--line);margin-bottom:18px}
.tab{flex:1;padding:9px;border-radius:10px;font-size:13px;color:var(--ink-3);transition:.18s;font-weight:600}
.tab.is-active{background:#fff;color:var(--blue-ink);box-shadow:var(--shadow-sm);border:1px solid var(--line-2)}
.rank-list{display:flex;flex-direction:column;gap:6px}
.rank-item{display:flex;align-items:center;gap:14px;padding:13px 14px;border-radius:var(--r-sm);border:1px solid transparent;transition:.18s}
.rank-item:hover{background:var(--surface-2);border-color:var(--line)}
.rank-item.me{background:var(--blue-softer);border-color:#d6e6ff}
.rank-no{width:26px;font-family:var(--mono);font-size:13px;font-weight:800;color:var(--ink-4);text-align:center}
.rank-item:nth-child(1) .rank-no{color:#d99a1b}
.rank-item:nth-child(2) .rank-no{color:#8a97a8}
.rank-item:nth-child(3) .rank-no{color:#b07a4a}
.rank-avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;background:linear-gradient(150deg,#6aa6ff,#2f74e8);flex:0 0 auto}
.rank-info{flex:1;min-width:0}
.rank-info .rn{font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-info .rd{font-size:11.5px;color:var(--ink-4)}
.rank-score{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--blue-ink)}
.rank-bar{height:5px;border-radius:999px;background:var(--surface-2);overflow:hidden;margin-top:6px}
.rank-bar span{display:block;height:100%;background:linear-gradient(90deg,#7fb0ff,var(--blue))}

/* ---------------- match ---------------- */
.match-hero{display:flex;align-items:center;gap:18px;padding:22px;border-radius:var(--r-lg);background:linear-gradient(150deg,#f2f8ff,#fff);border:1px solid var(--line)}
.match-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.match-item{display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface)}
.match-item .mi-rank{font-family:var(--mono);font-size:16px;font-weight:800;color:var(--blue-ink);width:22px}
.match-item .mi-info{flex:1;min-width:0}
.match-item .mi-info .mn{font-size:14.5px;font-weight:700}
.match-item .mi-info .md{font-size:11.5px;color:var(--ink-4);margin-top:2px}
.match-item .mi-common{font-size:11.5px;color:var(--ink-3);margin-top:5px}
.match-pct{font-family:var(--mono);font-size:18px;font-weight:800;color:var(--blue-ink)}
.match-pct small{font-size:11px;color:var(--ink-4);font-weight:400}

/* ---------------- profile ---------------- */
.profile-head{display:flex;align-items:center;gap:18px}
.profile-avatar{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;color:#fff;font-size:26px;font-weight:800;background:linear-gradient(150deg,#6aa6ff,#2f74e8);flex:0 0 auto}
.profile-name{font-size:20px;font-weight:800}
.profile-sub{font-size:12.5px;color:var(--ink-3);margin-top:4px}
.history-list{display:flex;flex-direction:column;gap:10px}
.history-item{display:flex;align-items:center;gap:14px;padding:13px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface)}
.history-item .hi-main{flex:1;min-width:0}
.history-item .hi-title{font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.history-item .hi-meta{font-size:11.5px;color:var(--ink-4);margin-top:2px}
.history-item .hi-acc{font-family:var(--mono);font-size:15px;font-weight:800;color:var(--blue-ink)}
.settings-row{display:flex;align-items:center;gap:14px;padding:15px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);margin-bottom:10px}
.settings-row .sr-main{flex:1}
.settings-row .sr-title{font-size:13.5px;font-weight:700}
.settings-row .sr-desc{font-size:11.5px;color:var(--ink-4);margin-top:2px}
.switch{width:46px;height:26px;border-radius:999px;background:var(--line-2);position:relative;transition:.2s;flex:0 0 auto}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:var(--shadow-sm);transition:.2s}
.switch.is-on{background:var(--blue)}
.switch.is-on::after{left:23px}

/* ---------------- demo ---------------- */
.demo-panel{text-align:center;padding:34px 26px}
.demo-panel h3{font-size:22px;font-weight:800}
.demo-panel p{margin-top:10px;font-size:13.5px;color:var(--ink-3);line-height:1.8;max-width:520px;margin-left:auto;margin-right:auto}
.demo-steps{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:22px}
.demo-step{padding:7px 13px;border-radius:999px;font-size:12px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-3)}
.demo-step.is-active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
.demo-step.is-done{border-color:#bfe4d2;color:var(--green);background:var(--green-soft)}
.demo-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.demo-log{margin-top:20px;text-align:left;font-family:var(--mono);font-size:12px;line-height:1.9;color:var(--ink-3);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;max-height:200px;overflow:auto}
.demo-log b{color:var(--blue-ink)}

/* ---------------- modal ---------------- */
.modal-root{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:20px}
.modal-root[hidden]{display:none}
.modal-mask{position:absolute;inset:0;background:rgba(14,26,43,.4);backdrop-filter:blur(3px);animation:fade .25s both}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{position:relative;width:min(640px,100%);max-height:min(86vh,820px);overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);animation:pop .32s cubic-bezier(.22,.9,.28,1) both}
.modal.wide{width:min(780px,100%)}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.modal-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(8px)}
.modal-title{font-size:16.5px;font-weight:800;letter-spacing:.02em}
.modal-close{margin-left:auto}
.modal-body{padding:22px}

/* share poster */
.poster{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:28px;color:#fff;
  background:linear-gradient(155deg,#0a84ff,#0a4fb5);box-shadow:var(--shadow-md);
}
.poster::after{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%)}
.poster-inner{position:relative;z-index:1}
.poster .p-brand{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.2em;opacity:.95}
.poster .p-title{font-size:26px;font-weight:800;margin-top:18px}
.poster .p-acc{font-family:var(--mono);font-size:54px;font-weight:800;line-height:1;margin-top:14px}
.poster .p-cap{font-size:12px;letter-spacing:.2em;opacity:.85;margin-top:4px}
.poster .p-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.poster .p-tag{padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);font-size:12px}
.poster .p-foot{display:flex;align-items:center;gap:14px;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.25)}
.poster .qr{width:58px;height:58px;border-radius:10px;background:#fff;display:grid;place-items:center;color:var(--blue-ink);font-size:10px;font-weight:700;text-align:center;line-height:1.2}
.poster .p-foot .pf-txt{font-size:12px;opacity:.9;line-height:1.7}

/* ---------------- drawer ---------------- */
.drawer-root{position:fixed;inset:0;z-index:90;display:flex;justify-content:flex-end}
.drawer-root[hidden]{display:none}
.drawer-mask{position:absolute;inset:0;background:rgba(14,26,43,.4);backdrop-filter:blur(3px);animation:fade .25s both}
.drawer{position:relative;width:min(440px,100%);height:100%;background:var(--surface);border-left:1px solid var(--line);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:slideIn .32s cubic-bezier(.22,.9,.28,1) both}
@keyframes slideIn{from{transform:translateX(30px);opacity:.4}to{transform:none;opacity:1}}
.drawer-head{display:flex;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head h2{font-size:16.5px;font-weight:800}
.drawer-head .icon-btn{margin-left:auto}
.drawer-body{padding:20px;overflow:auto;flex:1}
.gloss-item{padding:14px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface-2);margin-bottom:10px}
.gloss-item h4{font-size:14px;font-weight:800;margin:0}
.gloss-item p{font-size:12.5px;color:var(--ink-3);line-height:1.75;margin-top:6px}
.gloss-item .g-en{font-family:var(--mono);font-size:11px;color:var(--ink-4);margin-top:4px}

/* ---------------- toast ---------------- */
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%) translateY(10px);z-index:120;background:var(--ink);color:#fff;font-size:13px;padding:11px 20px;border-radius:12px;box-shadow:var(--shadow-lg);opacity:0;transition:.3s;pointer-events:none;max-width:80vw}
.toast.show{opacity:1;transform:translateX(-50%)}
.toast[hidden]{display:none}

/* ---------------- fox ---------------- */
.fox{display:block}
.fox.bounce{animation:foxBounce .6s cubic-bezier(.22,.9,.28,1)}
@keyframes foxBounce{0%{transform:translateY(0)}30%{transform:translateY(-9px) rotate(-4deg)}60%{transform:translateY(0) rotate(2deg)}100%{transform:none}}

/* misc */
.muted{color:var(--ink-3)}
.center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.empty{padding:36px 8px;text-align:center;color:var(--ink-4);font-size:13.5px}
.note{margin-top:16px;font-size:12px;color:var(--ink-4);line-height:1.8}
.schema-note{margin-top:16px;font-size:12px;color:var(--ink-4);line-height:1.8}
.upload-hint{font-size:13px;color:var(--ink-3);line-height:1.8}
.upload-hint code{font-family:var(--mono);font-size:12px;background:var(--surface-2);border:1px solid var(--line);padding:1px 6px;border-radius:5px;color:var(--blue-ink)}
.dropzone{margin-top:16px;border:1.6px dashed var(--line-2);border-radius:var(--r-md);padding:26px;text-align:center;background:var(--surface-2);transition:.2s;cursor:pointer}
.dropzone:hover,.dropzone.drag{border-color:var(--blue);background:var(--blue-softer)}
.dropzone .dz-icon{width:42px;height:42px;margin:0 auto 12px;border-radius:12px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);color:var(--blue)}
.dropzone .dz-main{font-size:14px;font-weight:700}
.dropzone .dz-sub{font-size:12px;color:var(--ink-4);margin-top:5px}
.upload-divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--ink-4);font-size:11.5px;letter-spacing:.14em}
.upload-divider::before,.upload-divider::after{content:"";height:1px;background:var(--line);flex:1}
textarea.json-input{width:100%;min-height:140px;resize:vertical;font-family:var(--mono);font-size:12px;line-height:1.6;padding:14px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface-2);color:var(--ink-2);outline:none;transition:.18s}
textarea.json-input:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px var(--blue-soft)}
.upload-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.upload-actions .btn{padding:10px 18px;font-size:13px}

/* ---------------- quiz layout (答题页双栏) ---------------- */
.quiz-layout{
  display:flex;align-items:flex-start;gap:20px;
}
.quiz-main{flex:1;min-width:0}
.quiz-lk-col{
  flex:0 0 130px;width:130px;
  position:sticky;
  top:calc(var(--topbar-h) + 20px);
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.quiz-lk-img{
  width:130px;height:130px;
  object-fit:contain;
  display:block;
  filter:drop-shadow(0 4px 14px rgba(0,60,180,.15));
  transition:opacity .2s ease;
}
.quiz-lk-img.lk-mirror{transform:scaleX(-1)}

/* 徽章：答对/连击/答错 */
.lk-badge{
  display:inline-flex;align-items:center;justify-content:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:800;letter-spacing:.04em;
  margin-bottom:6px;white-space:nowrap;
  animation:badgePop .32s cubic-bezier(.22,.9,.28,1) both;
}
.lk-badge-ok{background:var(--green-soft);color:var(--green);border:1.5px solid #b8e6cc}
.lk-badge-combo{background:#fffbe6;color:#b07000;border:1.5px solid #ffd166}
.lk-badge-wrong{background:var(--red-soft);color:var(--red);border:1.5px solid #f6c8c8}

@keyframes badgePop{
  0%{transform:scale(.5) translateY(6px);opacity:0}
  70%{transform:scale(1.12) translateY(-2px);opacity:1}
  100%{transform:scale(1) translateY(0);opacity:1}
}

/* 状态色边框 */
.quiz-lk-col.mood-ok .quiz-lk-img{filter:drop-shadow(0 4px 14px rgba(34,181,115,.25))}
.quiz-lk-col.mood-combo .quiz-lk-img{filter:drop-shadow(0 4px 14px rgba(217,154,27,.3))}
.quiz-lk-col.mood-wrong .quiz-lk-img{filter:drop-shadow(0 4px 14px rgba(240,80,80,.2))}

@media(max-width:780px){
  .quiz-lk-col{display:none}
}
.lk-fixed{
  position:fixed;
  right:18px;
  bottom:calc(var(--nav-h) + 14px);
  z-index:50;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  pointer-events:none;
}
.lk-fixed-img{
  width:140px;height:140px;
  object-fit:contain;
  display:block;
  filter:drop-shadow(0 4px 16px rgba(0,60,180,.18));
  transition:opacity .18s ease, transform .25s cubic-bezier(.22,.9,.28,1);
}
/* 镜像：朝向屏幕中间（右下角时面朝左） */
.lk-fixed-img.lk-mirror{
  transform:scaleX(-1);
}
.lk-fixed-bubble{
  display:inline-flex;align-items:center;justify-content:center;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:800;letter-spacing:.04em;
  background:#fff;border:2px solid var(--line-2);color:var(--ink-2);
  box-shadow:0 4px 14px -4px rgba(0,0,0,.15);
  white-space:nowrap;pointer-events:none;
}
.lk-bubble-ok{background:var(--green-soft);border-color:#b8e6cc;color:var(--green)}
.lk-bubble-combo{background:#fffbe6;border-color:#ffd166;color:#b07000;font-size:15px}
.lk-bubble-wrong{background:var(--red-soft);border-color:#f6c8c8;color:var(--red)}

@keyframes bubblePop{
  0%{transform:scale(.4) translateY(10px);opacity:0}
  65%{transform:scale(1.18) translateY(-4px);opacity:1}
  100%{transform:scale(1) translateY(0);opacity:1}
}
.lk-bubble-pop{animation:bubblePop .38s cubic-bezier(.22,.9,.28,1) both}

@media (max-width:720px){
  .lk-fixed{right:10px;bottom:calc(var(--nav-h) + 8px)}
  .lk-fixed-img{width:100px;height:100px}
  .lk-fixed-bubble{font-size:11.5px;padding:4px 9px}
}
@media (max-width:420px){
  .lk-fixed-img{width:76px;height:76px}
}
@media (max-width:900px){
  .home-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .report-grid{grid-template-columns:repeat(2,1fr)}
  .ach-grid{grid-template-columns:repeat(2,1fr)}
  .radar-wrap{grid-template-columns:1fr}
}
@media (max-width:720px){
  :root{--topbar-h:60px}
  .app{padding:calc(var(--topbar-h) + 18px) 14px calc(var(--nav-h) + 34px)}
  .hero{padding:32px 24px 30px}
  .hero h1{font-size:29px}
  .hero p{font-size:13.5px}
  .hero-lk{width:130px;height:130px}
  .hero-lk-img{width:130px;height:130px}
  .card{padding:20px 18px}
  .mode-cards{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .answers{grid-template-columns:1fr}
  .options{grid-template-columns:1fr}
  .qtitle{font-size:21px}
  .bar-row{grid-template-columns:76px 1fr 58px;gap:10px}
  .report-hero{gap:18px}
  .result-hero h2{font-size:22px}
  .result-hero .big-acc{font-size:44px}
  .brand-text em{display:none}
  .page-title{font-size:16px}
  .topbar-tools{gap:4px}
  .home-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .hero-lk{width:90px;height:90px}
  .hero-lk-img{width:90px;height:90px}
}
@media (max-width:420px){
  .home-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .metric{min-width:50px;padding:5px 9px}
  .metric-num{font-size:14px}
  .icon-btn{width:34px;height:34px}
  .hero h1{font-size:25px}
}

/* ---------- 单题分析报告 ---------- */
.qreport-badge{display:inline-block;margin:14px 0 4px;padding:6px 14px;border:1px solid #ddd;border-radius:999px;font-size:13px;font-weight:600}
.qrep-side{margin:10px 0 18px}
.qrep-side-name{font-weight:700;font-size:14px;margin-bottom:8px;color:#0f1c2e}
.qrep{border:1px solid #eef2f7;border-radius:12px;padding:12px 14px;margin-bottom:10px;background:#fafcff}
.qrep-meta{font-size:12px;color:#71829a;margin-bottom:6px}
.qrep-text{font-size:14px;line-height:1.7;color:#33445c;margin:0 0 6px}
.qreport-timeline{margin:8px 0 16px}
.tl-row{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:12px;color:#71829a}
.tl-year{width:42px;text-align:right;flex:none}
.tl-bar{flex:1;height:14px;background:#f1f4f9;border-radius:7px;overflow:hidden;display:flex}
.tl-seg{height:100%;display:block}
.tl-n{width:36px;flex:none}

/* 知乎登录卡片 */
.account-card{margin-bottom:14px}
.account-row{display:flex;align-items:center;gap:12px}
.account-avatar{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:none;background:var(--surface-2,#f1f4f9)}
.account-avatar-fallback{display:flex;align-items:center;justify-content:center;overflow:hidden}
.account-name{font-size:15px;font-weight:600;color:var(--ink-2,#22324a)}
.account-sub{font-size:12.5px;color:#71829a;margin-top:2px}

/* ================= 首页改版：主推玩法二（左大右小） ================= */
.home-modes{grid-template-columns:1.6fr 1fr;align-items:stretch}
.mode-entry.primary{
  border:1.5px solid #bcd9ff;
  background:linear-gradient(160deg,#f2f8ff 0%,#ffffff 46%,#f6fbff 100%);
  box-shadow:0 20px 48px -28px rgba(0,110,220,.5),var(--shadow-sm);
  padding:28px 26px 26px;min-height:228px;
}
.mode-entry.primary:hover{border-color:#8cc4ff}
.mode-entry.primary .me-tag{color:var(--blue);background:var(--blue-soft);padding:3px 11px;border-radius:999px;display:inline-block;letter-spacing:.12em;align-self:flex-start}
.mode-entry.primary .me-name{font-size:34px;letter-spacing:.01em}
.mode-entry.primary .me-desc{font-size:14px;max-width:440px}
.mode-entry.primary .me-meta{font-size:12px;color:var(--ink-4);margin-top:10px;display:block}
.mode-entry.primary .me-go{font-size:15px}
.home-side{display:flex;flex-direction:column;gap:16px;min-width:0}
.home-side .mode-entry{flex:1;padding:20px 20px 18px}
.home-side .mode-entry .me-name{font-size:20px}
.home-side .mode-entry .me-desc{font-size:12.5px}
.home-report-card{border:1px solid var(--line-2);border-radius:var(--r-md);background:var(--surface);padding:16px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow-sm)}
.hrc-top{display:flex;align-items:center;gap:8px;font-size:14px}
.hrc-sub{font-size:12.5px;color:var(--ink-3);line-height:1.6}
.hrc-bar{height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.hrc-bar span{display:block;height:100%;background:linear-gradient(90deg,#33a1ff,#0084ff);border-radius:99px;transition:width .5s}
.hrc-btn{align-self:flex-start;margin-top:2px}
@media(max-width:780px){
  .home-modes{grid-template-columns:1fr}
  .mode-entry.primary{min-height:0;padding:22px 20px}
  .mode-entry.primary .me-name{font-size:27px}
}

/* 答题页报告快捷入口 */
.report-chip{font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink-4);flex:0 0 auto;letter-spacing:.02em}
.report-chip.ready{color:var(--blue-ink);border-color:#bcd9ff;background:var(--blue-softer)}
.report-chip.ready:hover{background:var(--blue-soft)}
.report-chip.locked{opacity:.75}

/* 多选项分布图例 */
.tri-legend{display:flex;flex-wrap:wrap;gap:8px 14px;margin-bottom:10px}
.tri-leg{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-3)}
.tri-leg i{width:10px;height:10px;border-radius:3px;display:inline-block;flex:0 0 auto}
.tri-leg i.neu{background:#c9d6e6}
.tri-mymark{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}

/* ================= Impeccable craft pass ================= */
/* 浏览器表面：选中/焦点/滚动条，让页面像被设计过 */
::selection{background:rgba(0,132,255,.18);color:var(--blue-ink)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:8px}
*{scrollbar-width:thin;scrollbar-color:#cdd9e8 transparent}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#cdd9e8;border-radius:99px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:#b6c8dd;background-clip:content-box}
/* 排版：标题平衡换行 + 明显层级 */
h1,h2,h3,.qtitle,.hero h1{text-wrap:balance}
.hero h1{letter-spacing:-.01em}
.qtitle{letter-spacing:-.005em}
/* 去反模式：取消彩色左边框强调 */
.qcontext{border:1px solid var(--line-2);border-left:1px solid var(--line-2);background:var(--surface-2)}
.qdesc{border:1px dashed var(--line-2);border-left:1px dashed var(--line-2)}
/* 按钮状态补全：active / disabled / focus */
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
/* 统一的入场动效（一次编排，克制的 ease-out 上浮） */
@keyframes riseIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.page:not(.no-anim){animation:riseIn .38s cubic-bezier(.22,.61,.36,1) both}
.card{text-rendering:optimizeLegibility}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}