:root{
    /* —— Modern light · clean & precise —— */
    --bg:#fbfcfd;            /* soft cool white */
    --bg-deep:#f3f5f8;       /* deeper band */
    --panel:#ffffff;         /* card surface */
    --panel-2:#eef1f5;       /* track / muted fill */
    --ink:#11151c;           /* primary text, near-black cool */
    --ink-dim:#4a5462;       /* secondary text */
    --ink-faint:#8a93a3;     /* captions */
    --rule:#e6eaf0;          /* hairline */
    --rule-bright:#d7dde6;
    --true:#0e9e6e;          /* emerald — verified (legible on white) */
    --true-soft:rgba(14,158,110,.09);
    --false:#e23b54;         /* rose — flagged */
    --false-soft:rgba(226,59,84,.07);
    --warn:#c98a04;
    --accent:#0e9e6e;        /* emerald accent, no blue/purple */
    --accent-ink:#ffffff;
    /* one global UI font; --serif/--sans both map to it so nothing else needs a font-family */
    --sans:"Mona Sans VF","Mona Sans",-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
    --serif:var(--sans);
    /* monospace kept only for numerals / refs / scores so they stay tabular-aligned */
    --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
    /* —— article type scale (single source of truth; responsive overrides only touch these) —— */
    --fs-lead:18px;          /* 正文首段 .lead */
    --fs-body:16px;          /* 正文 p / div / li 标准正文字号 */
    --fs-h2:22px;            /* 段内小标题 h2 */
    --fs-divider:12px;       /* 分节符 */
    --lh-body:1.85;          /* 正文行高 */
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;color:var(--ink);
    font-family:var(--sans);line-height:1.85;
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
    background-color:var(--bg);
    /* faint dot grid + one soft emerald glow top-left, atmospheric not flat */
    background-image:
      radial-gradient(rgba(17,21,28,.025) 1px,transparent 1px),
      radial-gradient(900px 480px at 8% -5%, rgba(14,158,110,.05), transparent 70%);
    background-size:22px 22px, 100% 100%;
  }
  ::selection{background:var(--accent);color:var(--accent-ink)}

  /* ---------- masthead ---------- */
  header.mast{
    border-bottom:1px solid var(--rule);
    padding:56px 24px 34px;
    max-width:1420px;margin:0 auto;position:relative;
  }
  /* green/red legend pills (used in meta-orig) */
  .k{
    font-weight:600;padding:2px 8px;border-radius:999px;letter-spacing:.08em;
    border:1px solid transparent;font-family:var(--mono);
  }
  .k-t{color:#0a6e4d;background:var(--true-soft);border-color:rgba(14,158,110,.3)}
  .k-f{color:#b32339;background:var(--false-soft);border-color:rgba(226,59,84,.28)}
  .sep{color:var(--ink-faint);margin:0 7px}
  h1.mast-title{
    font-family:var(--serif);font-weight:700;
    font-size:36px;line-height:1.3em;
    margin:0 0 16px;letter-spacing:-.02em;color:var(--ink);
  }
  h1.mast-title .strike{
    text-decoration:line-through;text-decoration-color:var(--false);
    text-decoration-thickness:3px;color:var(--ink-faint);
  }
  .meta-orig{
    margin-top:22px;font-family:var(--mono);font-size:11.5px;color:var(--ink-faint);
    letter-spacing:.01em;
    display:flex;align-items:flex-end;justify-content:space-between;gap:20px 32px;
  }
  .meta-info{display:flex;flex-direction:column;gap:5px;min-width:0}
  .meta-line{display:block}
  .meta-legend{flex:0 0 auto;white-space:nowrap;align-self:flex-start}
  .meta-orig .orig-link{
    color:var(--accent);text-decoration:none;font-weight:500;
    border-bottom:1px solid transparent;transition:border-color .18s;
  }
  .meta-orig .orig-link:hover{border-bottom-color:var(--accent)}
  .meta-orig .orig-link::after{
    content:"↗";font-size:.92em;margin-left:3px;vertical-align:baseline;
  }
  .mast-row{display:block}
  .mast-text{min-width:0}
  /* inline score badge at the start of the meta-orig line */
  .meta-orig .score-inline{
    display:inline-flex;align-items:center;gap:6px;
    text-decoration:none;vertical-align:middle;
    border:1px solid var(--rule-bright);border-radius:999px;
    padding:2px 11px 2px 9px;margin-right:12px;
    font-family:var(--mono);line-height:1.4;transition:border-color .2s;
  }
  .meta-orig .score-inline .score-dot{
    width:7px;height:7px;border-radius:50%;background:var(--ink-faint);flex:0 0 auto;
  }
  .meta-orig .score-inline b{font-size:14px;font-weight:700;color:var(--ink);line-height:1}
  .meta-orig .score-inline .score-cap{
    font-size:10.5px;color:var(--ink-faint);letter-spacing:.02em;line-height:1;
  }

  /* ---------- legend ---------- */
  .legend{
    max-width:1420px;margin:0 auto;padding:22px 24px 0;
    display:flex;gap:26px;flex-wrap:wrap;align-items:center;
    font-size:13px;color:var(--ink-dim);
  }
  .legend .item{display:flex;align-items:center;gap:9px}
  .swatch{width:30px;height:0;border-bottom-width:2.5px;border-bottom-style:dashed;display:inline-block}
  .swatch.t{border-color:var(--true)}
  .swatch.f{border-color:var(--false)}
  .legend .hint{font-family:var(--mono);font-size:11px;color:var(--ink-faint)}

  /* ---------- layout ---------- */
  .wrap{
    max-width:1420px;margin:0 auto;padding:34px 24px 40px;
    display:grid;grid-template-columns:minmax(0,6fr) minmax(0,4fr);gap:30px;
    align-items:start;
  }
  /* article type scale — same tag ⇒ same size, always. Sizes come only from the
     :root variables above; nothing here hard-codes a px so it stays consistent. */
  article{
    font-size:var(--fs-body);color:var(--ink-dim);
    line-height:var(--lh-body);font-family:var(--sans);
    /* skeuomorphic sheet of paper: square corners, a faint fibrous tint,
       and a layered contact shadow like paper resting on a surface */
    background:
      linear-gradient(#ffffff,#ffffff) padding-box,
      repeating-linear-gradient(0deg, rgba(17,21,28,.014) 0 1px, transparent 1px 3px) padding-box,
      #ffffff;
    border:1px solid #e9ecf1;
    border-top-color:#dfe3ea;      /* slightly darker top edge for depth */
    border-radius:0;               /* real paper isn't rounded */
    padding:30px;
    box-shadow:
      0 -2px 6px -3px rgba(17,21,28,.08),   /* soft shadow at the top */
      0 1px 1px rgba(17,21,28,.06),         /* crisp contact edge */
      0 5px 9px -6px rgba(17,21,28,.09),    /* near shadow */
      0 20px 30px -22px rgba(17,21,28,.12); /* soft depth */
  }
  /* every block-level body element renders at the one standard body size */
  article p,
  article div:not(.divider-mark):not([class*="mark"]),
  article li{
    font-size:var(--fs-body);line-height:var(--lh-body);
    font-weight:400;margin:0 0 18px;
  }
  article h2{
    font-family:var(--serif);font-size:var(--fs-h2);font-weight:600;
    line-height:1.3;margin:46px 0 14px;padding-top:8px;
    letter-spacing:-.01em;color:var(--ink);
  }
  article h2 .n{
    font-family:var(--mono);font-size:13px;color:var(--accent);
    margin-right:12px;font-weight:500;
  }
  /* inline emphasis: never set font-size ⇒ always inherits parent (stays uniform) */
  article strong{color:var(--ink);font-weight:600}
  article em{color:var(--ink);font-style:italic}
  article .lead{
    font-size:var(--fs-lead);color:var(--ink);
    line-height:1.8;font-weight:400;margin:0 0 18px;
  }
  .divider-mark{
    text-align:center;color:var(--ink-faint);font-family:var(--mono);
    letter-spacing:.5em;margin:34px 0;font-size:var(--fs-divider);
  }
  /* inline article figures (downloaded body images, shown as-is) */
  article .fig{margin:22px 0;text-align:center}
  article .fig img{
    max-width:100%;height:auto;border-radius:8px;
    border:1px solid var(--rule);vertical-align:middle;
  }

  /* ---------- annotated spans ---------- */
  .mark{
    cursor:pointer;position:relative;padding-bottom:1px;
    border-bottom:2px dashed transparent;transition:background .18s;
    border-radius:2px;
  }
  .mark.t{border-bottom-color:var(--true)}
  .mark.f{border-bottom-color:var(--false)}
  .mark:hover{background:var(--true-soft)}
  .mark.f:hover{background:var(--false-soft)}
  .mark.active.t{background:var(--true-soft)}
  .mark.active.f{background:var(--false-soft)}
  .mark .tag{
    font-family:var(--mono);font-size:10px;vertical-align:super;
    margin-left:2px;font-weight:600;letter-spacing:.02em;
  }
  .mark.t .tag{color:var(--true)}
  .mark.f .tag{color:var(--false)}

  /* ---------- aside / cards rail ---------- */
  /* right rail: pinned to viewport, its card list scrolls independently */
  aside{
    position:sticky;top:18px;
    height:calc(100vh - 36px);
    display:flex;flex-direction:column;min-height:0;
  }
  .rail-head{
    font-family:var(--mono);font-size:11px;letter-spacing:.22em;
    text-transform:uppercase;color:var(--ink-faint);
    margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--rule);
    flex:0 0 auto;
  }
  #rail{
    flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;
    scroll-behavior:smooth;
    /* small padding so a card's shadow/left-rule isn't clipped by the scroll
       container; the JS clamps alignment to keep each card fully visible, so no
       big buffer is needed. */
    padding:3px 8px 3px 4px;
    /* Hide the scrollbar entirely (content still scrolls via wheel/drag/click).
       PC WeChat renders a fat native bar and ignores thumb styling, so hiding is
       the only cross-engine option. */
    scrollbar-width:none;          /* Firefox */
    -ms-overflow-style:none;       /* IE / old Edge */
  }
  #rail::-webkit-scrollbar{width:0;height:0;display:none}  /* Chrome / Safari / WeChat */
  #rail>.card:last-child{margin-bottom:0}
  .card{
    border:1px solid var(--rule);
    border-left-width:3px;border-radius:10px;padding:14px 16px 15px;
    margin-bottom:13px;opacity:.66;
    background:var(--panel);
    transition:opacity .25s,box-shadow .25s,background .25s,transform .25s,border-color .25s;
  }
  .card.t{border-left-color:var(--true);background:var(--true-soft);border-color:rgba(14,158,110,.22)}
  .card.f{border-left-color:var(--false);background:var(--false-soft);border-color:rgba(226,59,84,.20)}
  .card.active{opacity:1;box-shadow:0 10px 30px -14px rgba(17,21,28,.28);transform:translateY(-1px)}
  .card.t.active{background:rgba(14,158,110,.13);border-color:rgba(14,158,110,.4)}
  .card.f.active{background:rgba(226,59,84,.11);border-color:rgba(226,59,84,.38)}
  .card .ref{
    font-family:var(--mono);font-size:10px;letter-spacing:.12em;
    text-transform:uppercase;margin-bottom:8px;display:flex;
    justify-content:space-between;align-items:center;
  }
  .card.t .ref{color:var(--true)}
  .card.f .ref{color:var(--false)}
  /* verdict as a tag badge in the top-right corner */
  .card .verdict{
    font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.04em;
    padding:2px 9px;border-radius:999px;color:#fff;line-height:1.5;white-space:nowrap;
  }
  .card.t .verdict{background:var(--true)}
  .card.f .verdict{background:var(--false)}
  .card h4{margin:0 0 6px;font-size:14.5px;color:var(--ink);font-weight:600}
  .card p{margin:0;font-size:13px;color:var(--ink-dim);line-height:1.7}
  .card.f p{color:var(--ink-dim)}
  .card.t p{color:var(--ink-dim)}
  .card .src{
    margin-top:9px;font-family:var(--mono);font-size:10.5px;
    color:var(--ink-faint);padding-top:8px;border-top:1px dashed var(--rule);
  }
  .card .src a{color:var(--ink-faint);text-decoration:underline;text-decoration-style:dotted}

  /* ---------- scorecard ---------- */
  .scores{
    border-top:1px solid var(--rule);
    padding:50px 24px 70px;max-width:1420px;margin-left:auto;margin-right:auto;
  }
  .scores h2{
    font-family:var(--serif);font-size:30px;font-weight:600;margin:0 0 8px;
  }
  .scores .sub{color:var(--ink-dim);font-size:15px;margin:0 0 34px}
  .claim{
    display:grid;grid-template-columns:46px 1fr 132px;gap:18px;align-items:center;
    padding:18px 0;border-bottom:1px solid var(--rule);
  }
  .claim .idx{
    font-family:var(--mono);font-size:13px;color:var(--ink-faint);
  }
  .claim .body h4{margin:0 0 5px;font-size:15.5px;font-weight:600;color:var(--ink)}
  .claim .body p{margin:0;font-size:13.5px;color:var(--ink-dim);line-height:1.6}
  .gauge{display:flex;flex-direction:column;gap:6px;align-items:flex-end}
  .gauge .pct{font-family:var(--mono);font-size:18px;font-weight:600}
  .bar{width:130px;height:8px;border-radius:5px;background:var(--panel-2);overflow:hidden}
  .bar i{display:block;height:100%;border-radius:5px;width:0;transition:width 1s cubic-bezier(.2,.7,.2,1)}

  .overall{
    margin-top:40px;background:var(--panel);border:1px solid var(--rule);
    border-radius:16px;padding:32px 34px;display:grid;
    grid-template-columns:160px 1fr;gap:34px;align-items:center;
    box-shadow:0 18px 50px -28px rgba(17,21,28,.35);
  }
  .ring-wrap{display:flex;flex-direction:column;align-items:center;gap:10px}
  .ring{position:relative;width:150px;height:150px}
  .ring svg{transform:rotate(-90deg)}
  #ringArc{transition:stroke-dashoffset 1s cubic-bezier(.2,.7,.2,1)}
  .ring .num{
    position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    flex-direction:column;font-family:var(--mono);
  }
  .ring .num b{font-size:34px;font-weight:700;line-height:1}
  .ring .num span{font-size:11px;color:var(--ink-faint);letter-spacing:.1em;margin-top:4px}
  .overall .verdict-body h3{margin:0 0 12px;font-family:var(--serif);font-size:22px;font-weight:600}
  .overall .verdict-body p{margin:0 0 12px;font-size:14.5px;color:var(--ink-dim);line-height:1.7}
  .overall .verdict-body p:last-child{margin-bottom:0}

  footer{
    max-width:1420px;margin:0 auto;padding:0 24px 60px;
    font-family:var(--mono);font-size:11.5px;color:var(--ink-faint);line-height:1.8;
  }
  footer .sources a{color:var(--ink-faint);text-decoration:underline;text-decoration-style:dotted}

  /* ---------- responsive ---------- */
  @media (max-width:980px){
    .wrap{grid-template-columns:1fr;gap:8px}
    /* stacked layout: the rail flows with the page, no independent scroll */
    aside{position:static;height:auto;display:block;margin-top:26px}
    #rail{overflow:visible;height:auto;padding:0}
    .overall{grid-template-columns:1fr;text-align:left}
    .ring-wrap{margin:0 auto}
    .claim{grid-template-columns:30px 1fr;gap:10px}
    .gauge{grid-column:1/-1;flex-direction:row;justify-content:flex-start;align-items:center;gap:12px;margin-top:6px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;scroll-behavior:auto!important}
  }

  /* ============ mobile hardening ============ */
  @media (max-width:640px){
    header.mast{padding:30px 18px 22px}
    h1.mast-title{font-size:27px;line-height:1.32em;margin:0 0 12px}
    /* stack meta info and legend on phones */
    .meta-orig{font-size:10.5px;margin-top:16px;line-height:1.9;
      flex-direction:column;align-items:flex-start;gap:12px}
    .meta-legend{white-space:normal}
    .k{padding:2px 7px}
    .sep{margin:0 4px}
    .legend{padding:16px 18px 0;gap:12px 18px;font-size:12px}
    .wrap{padding:22px 14px 30px;gap:4px}
    /* responsive type scale: only the variables change ⇒ tags stay consistent */
    :root{--fs-body:15.5px;--fs-lead:16.5px;--fs-h2:20px}
    article{padding:22px 18px;border-radius:0}
    article h2{margin:34px 0 12px}
    .divider-mark{margin:26px 0;letter-spacing:.4em}
    .rail-head{margin-top:8px}
    .card{padding:13px 14px 14px}
    .card h4{font-size:14.5px}
    .card p{font-size:13px}
    .scores{padding:36px 18px}
    .scores h2{font-size:24px}
    .scores .sub{font-size:14px;margin-bottom:24px}
    .overall{padding:24px 20px;gap:22px;border-radius:14px}
    .overall .verdict-body h3{font-size:19px}
    .overall .verdict-body p{font-size:15px}
    footer{padding:0 18px 44px}
  }
  @media (max-width:420px){
    h1.mast-title{font-size:24px}
    .claim{grid-template-columns:26px 1fr;gap:8px;padding:14px 0}
    .claim .body h4{font-size:14.5px}
  }



/* ============ index (report list) page ============ */
.ix-wrap{max-width:900px;margin:0 auto;padding:56px 24px 80px}
.ix-head{margin:0 0 8px;font-family:var(--serif);font-weight:700;font-size:34px;letter-spacing:-.02em;color:var(--ink)}
.ix-sub{margin:0 0 40px;color:var(--ink-dim);font-size:15px}
.ix-group{margin-bottom:40px}
.ix-date{
  font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--ink-dim);margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid var(--rule);
  display:flex;align-items:center;gap:10px;
}
.ix-count{color:var(--ink-faint);font-weight:400;font-size:11.5px}
.ix-list{display:flex;flex-direction:column;gap:10px}
.ix-item{
  display:flex;align-items:center;gap:16px;text-decoration:none;
  background:#fff;border:1px solid var(--rule);border-radius:12px;
  padding:16px 18px;transition:border-color .18s,box-shadow .18s,transform .18s;
}
.ix-item:hover{border-color:var(--rule-bright);box-shadow:0 8px 22px -14px rgba(17,21,28,.22);transform:translateY(-1px)}
.ix-score{
  flex:0 0 auto;font-family:var(--mono);font-weight:700;font-size:17px;
  width:46px;height:46px;border:2px solid;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.ix-body{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1 1 auto}
.ix-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.4}
.ix-meta{font-family:var(--mono);font-size:11.5px;color:var(--ink-faint)}
.ix-src{color:var(--ink-faint)}
.ix-go{flex:0 0 auto;color:var(--ink-faint);font-size:18px}
.ix-item:hover .ix-go{color:var(--accent)}
@media (max-width:640px){
  .ix-wrap{padding:36px 18px 60px}
  .ix-head{font-size:26px}
  .ix-item{padding:13px 14px;gap:12px}
  .ix-score{width:40px;height:40px;font-size:15px}
  .ix-title{font-size:15px}
}