/* ==========================================================================
   Market Intelligence — Research Report Site
   Design tokens + components. Single stylesheet, no external dependencies.
   ========================================================================== */

:root{
  --bg:#ffffff;
  --bg-soft:#f7f8f6;
  --bg-tint:#f2f5f2;
  --ink:#0f1413;
  --ink-2:#39413f;
  --muted:#6c7573;
  --faint:#98a09e;
  --line:#e6e9e5;
  --line-2:#d8dcd6;
  --accent:#14513f;
  --accent-2:#1d6b53;
  --accent-soft:#edf3f0;
  --accent-line:#cfe0d8;
  --amber:#8a6224;
  --amber-soft:#f8f2e6;
  --risk:#6f3b32;
  --risk-soft:#f6eeec;
  --radius:12px;
  --radius-sm:8px;
  --maxw:1200px;
  --maxw-read:760px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
  --shadow-none:none;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.68;
  font-feature-settings:"kern" 1,"liga" 1;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.lang-zh{font-size:16px;line-height:1.8;letter-spacing:.005em;}

img,svg{max-width:100%;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.018em;color:var(--ink);}
body.lang-zh h1,body.lang-zh h2,body.lang-zh h3,body.lang-zh h4{letter-spacing:0;font-weight:600;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
li{margin:0 0 .5em;}
li:last-child{margin-bottom:0;}
strong{font-weight:600;}
code,.mono{font-family:var(--mono);font-size:.86em;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.wrap-narrow{max-width:var(--maxw-read);margin:0 auto;padding:0 28px;}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 28px;
  height:64px;display:flex;align-items:center;gap:20px;
}
.brandmark{display:flex;align-items:center;gap:10px;min-width:0;}
.brandmark .dot{
  width:9px;height:9px;border-radius:50%;background:var(--accent);flex:none;
  box-shadow:0 0 0 3px var(--accent-soft);
}
.brandmark .b1{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;}
.brandmark .b2{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topnav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.topnav a{
  font-size:14px;color:var(--ink-2);padding:7px 12px;border-radius:999px;
  white-space:nowrap;transition:background .15s ease,color .15s ease;
}
.topnav a:hover{background:var(--bg-soft);text-decoration:none;color:var(--ink);}
.topnav a[aria-current="page"]{background:var(--bg-tint);color:var(--ink);font-weight:600;}
.langswitch{
  display:flex;align-items:center;border:1px solid var(--line-2);border-radius:999px;
  padding:2px;margin-left:8px;flex:none;background:#fff;
}
.langswitch a{
  font-size:12.5px;line-height:1;padding:6px 10px;border-radius:999px;color:var(--muted);letter-spacing:.02em;
}
.langswitch a:hover{text-decoration:none;color:var(--ink);background:transparent;}
.langswitch a.active{background:var(--accent);color:#fff;}
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);
  z-index:70;transition:width .1s linear;opacity:.85;
}

/* ---------- hero ---------- */
.hero{padding:64px 0 8px;}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:start;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);border:1px solid var(--accent-line);
  padding:5px 10px;border-radius:4px;margin-bottom:24px;
}
body.lang-zh .eyebrow{letter-spacing:.08em;}
.hero h1{font-size:clamp(2rem,3.4vw,2.9rem);line-height:1.12;letter-spacing:-.025em;margin-bottom:18px;}
body.lang-zh .hero h1{font-size:clamp(1.85rem,3vw,2.5rem);line-height:1.28;}
.hero .model-line{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;flex-wrap:wrap;}
.hero .model-line .oem{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:600;}
.hero .model-line .model{font-size:15px;font-weight:600;color:var(--ink);letter-spacing:.02em;}
.hero .model-line .sep{width:1px;height:14px;background:var(--line-2);}
.model-seg{font-size:14px;color:var(--muted);line-height:1.5;margin:0 0 14px;max-width:640px;}
.lede{font-size:17.5px;line-height:1.62;color:var(--ink-2);max-width:620px;margin-bottom:20px;}
body.lang-zh .lede{font-size:16.5px;}
.valueprop{
  border-left:2px solid var(--accent);
  background:var(--bg-soft);padding:16px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:15.5px;color:var(--ink-2);line-height:1.62;max-width:640px;
}
.meta-chips{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;margin-top:28px;max-width:660px;}
.meta-chip{border-top:1px solid var(--line);padding-top:10px;}
.meta-chip .k{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:3px;}
body.lang-zh .meta-chip .k{letter-spacing:.06em;}
.meta-chip .v{font-size:13.5px;color:var(--ink);line-height:1.45;}
.hero-visual{position:relative;}
.hero-visual svg{display:block;width:100%;height:auto;}
.visual-cap{font-size:11.5px;color:var(--faint);line-height:1.5;margin-top:10px;padding-left:2px;}

/* ---------- section scaffolding ---------- */
section{padding:64px 0;}
section + section{border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-num{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);font-weight:600;margin-bottom:8px;}
.section-head h2{font-size:clamp(1.5rem,2.2vw,1.9rem);line-height:1.2;margin-bottom:8px;}
.section-sub{font-size:14.5px;color:var(--muted);max-width:680px;line-height:1.6;margin:0;}
.section-link{font-size:13.5px;white-space:nowrap;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}

/* ---------- KPI ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.kpi{background:#fff;padding:24px 22px 22px;display:flex;flex-direction:column;min-height:172px;transition:background .18s ease;}
.kpi:hover{background:var(--bg-soft);}
.kpi .tag{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:12px;}
.kpi .num{font-size:38px;line-height:1;font-weight:600;letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--ink);}
.kpi .num small{font-size:18px;font-weight:500;letter-spacing:-.01em;margin-left:1px;}
.kpi .label{font-size:13.5px;color:var(--ink-2);margin-top:10px;line-height:1.45;}
.kpi .src{font-size:11.5px;color:var(--faint);margin-top:auto;padding-top:14px;}
.kpi.accent .num{color:var(--accent);}

/* ---------- findings ---------- */
.findings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.finding{
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 20px;background:#fff;
  display:flex;flex-direction:column;transition:border-color .18s ease;
}
.finding:hover{border-color:var(--line-2);}
.finding .fnum{font-size:11px;letter-spacing:.12em;color:var(--accent);font-weight:600;margin-bottom:10px;}
.finding h3{font-size:16.5px;line-height:1.35;margin-bottom:14px;}
.finding .row{display:grid;grid-template-columns:78px minmax(0,1fr);gap:10px;padding:9px 0;border-top:1px solid var(--bg-tint);font-size:13.5px;line-height:1.55;}
.finding .row .rk{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);font-weight:600;padding-top:2px;}
.finding .row .rv{color:var(--ink-2);}
body.lang-zh .finding .row{grid-template-columns:64px minmax(0,1fr);}

/* ---------- opportunity / risk ---------- */
.or-block + .or-block{margin-top:34px;}
.or-block-head{display:flex;align-items:baseline;gap:10px;margin-bottom:16px;}
.or-block-head h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0;}
.or-block-head .cnt{font-size:11px;color:var(--faint);}
.or-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.or-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;}
.or-card.opp{border-top:2px solid var(--accent);}
.or-card.risk{border-top:2px solid var(--risk);}
.or-card .label{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;margin-bottom:12px;}
.or-card.opp .label{color:var(--accent);}
.or-card.risk .label{color:var(--risk);}
.or-card h3{font-size:15.5px;margin-bottom:8px;line-height:1.35;}
.or-card p{font-size:13.5px;color:var(--ink-2);margin:0;line-height:1.6;}
.or-card .ev{font-size:12px;color:var(--muted);margin-top:10px;padding-top:10px;border-top:1px solid var(--bg-tint);line-height:1.5;}

/* ---------- charts ---------- */
.chart-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px 24px 16px;}
.chart-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:6px;}
.chart-title{font-size:15.5px;font-weight:600;line-height:1.35;}
.chart-sub{font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.45;}
.chart-figure{margin:14px 0 0;}
.chart-figure svg{display:block;width:100%;max-width:920px;height:auto;margin:0 auto;overflow:visible;}
/* value-list rendering of the same numbers on small screens */
.chart-compact{display:none;}
.cc-row{padding:11px 0;border-top:1px solid var(--bg-tint);}
.cc-row:first-child{border-top:none;}
.cc-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.cc-label{font-size:13px;color:var(--ink);font-weight:500;}
.cc-val{font-size:13.5px;color:var(--ink);font-weight:600;flex:none;}
.cc-track{height:5px;background:var(--bg-tint);border-radius:3px;margin:7px 0 5px;overflow:hidden;}
.cc-bar{display:block;height:100%;background:var(--accent);border-radius:3px;}
.cc-meta{font-size:11.5px;color:var(--faint);}
.chart-foot{font-size:11.5px;color:var(--faint);line-height:1.55;margin-top:10px;border-top:1px solid var(--bg-tint);padding-top:10px;}
.chart-foot b{color:var(--muted);font-weight:600;}
.chart-data{margin-top:8px;font-size:12px;}
.chart-data summary{cursor:pointer;color:var(--muted);font-size:12px;padding:4px 0;}
.chart-data summary:hover{color:var(--ink);}
.chart-data .tbl-wrap{margin-top:8px;}

.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:12px;font-size:12px;color:var(--ink-2);}
.legend .li{display:inline-flex;align-items:center;gap:7px;}
.legend .sw{width:12px;height:12px;border-radius:3px;flex:none;}
.legend .sw.line{height:2px;width:18px;border-radius:0;}

/* ---------- tables ---------- */
.table-block{margin:18px 0 6px;}
.tbl-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
table.tbl{border-collapse:collapse;width:100%;font-size:13.5px;min-width:560px;}
table.tbl caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--muted);padding:0 0 8px;}
table.tbl thead th{
  position:sticky;top:0;background:var(--bg-soft);
  text-align:left;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600;
  padding:11px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
body.lang-zh table.tbl thead th{letter-spacing:.02em;font-size:11.5px;}
body.lang-zh .sec-num{letter-spacing:.08em;}
table.tbl td{padding:13px 16px;border-bottom:1px solid var(--bg-tint);vertical-align:top;line-height:1.55;color:var(--ink-2);}
table.tbl tbody tr:last-child td{border-bottom:none;}
table.tbl tbody tr:hover td{background:#fcfdfc;}
table.tbl td.num{font-variant-numeric:tabular-nums;color:var(--ink);white-space:nowrap;font-weight:500;}
table.tbl td.key{color:var(--ink);font-weight:500;}
table.tbl td .cell-sub{display:block;font-size:11.5px;color:var(--faint);margin-top:2px;}
.tbl-note{font-size:11.5px;color:var(--faint);margin-top:8px;line-height:1.5;}
table.tbl.tbl-qn td:first-child,table.tbl.tbl-qn thead th:first-child{white-space:nowrap;color:var(--ink);font-weight:500;}
table.tbl[data-sortable] thead th{cursor:pointer;user-select:none;}
table.tbl[data-sortable] thead th:hover{color:var(--ink);}
table.tbl[data-sortable] thead th[data-dir="asc"]::after{content:" \u2191";color:var(--accent);}
table.tbl[data-sortable] thead th[data-dir="desc"]::after{content:" \u2193";color:var(--accent);}
.chart-figure svg text{pointer-events:none;}
.tbl-scroll-hint{display:none;font-size:11px;color:var(--faint);margin-top:6px;}

/* ---------- pills / priority ---------- */
.pill{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;
  padding:3px 8px;border-radius:4px;line-height:1.4;}
body.lang-zh .pill{letter-spacing:.02em;}
.pill.high{background:var(--accent);color:#fff;}
.pill.medium{background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent-line);}
.pill.cons-high{background:var(--bg-tint);color:var(--ink-2);}
.pill.cons-medium{background:#faf8f2;color:var(--amber);border:1px solid #efe6d3;}
.pill.cons-low{background:var(--risk-soft);color:var(--risk);}
.pill.cons-verylow{background:#f3e9e7;color:var(--risk);border:1px solid #e4d2ce;}

/* ---------- theme blocks ---------- */
.themes{display:grid;gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.theme{background:#fff;padding:22px 26px;}
.theme:hover{background:#fdfefd;}
.theme .t-head{display:flex;align-items:baseline;gap:12px;margin-bottom:8px;flex-wrap:wrap;}
.theme h3{font-size:15.5px;line-height:1.35;}
.theme .quote-count{font-size:11px;color:var(--faint);letter-spacing:.06em;}
.theme p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.65;}
.theme .cite{font-size:11px;color:var(--faint);margin-left:2px;vertical-align:super;font-variant-numeric:tabular-nums;}
.inline-note{
  margin-top:12px;background:var(--bg-soft);border-left:2px solid var(--amber);
  padding:10px 14px;font-size:12px;color:var(--ink-2);line-height:1.55;border-radius:0 6px 6px 0;
}
.inline-note .nl{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--amber);margin-right:6px;}

/* ---------- callouts ---------- */
.callout{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);padding:18px 20px;margin:18px 0;}
.callout .cl{font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;font-weight:600;color:var(--accent);margin-bottom:6px;}
.callout.warn{background:var(--amber-soft);border-color:#ece1c9;}
.callout.warn .cl{color:var(--amber);}
.callout p{font-size:13.5px;color:var(--ink-2);margin:0;line-height:1.6;}
.callout p + p{margin-top:8px;}

/* ---------- research page layout ---------- */
.reading{background:var(--bg);}
.layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:56px;align-items:start;padding-top:48px;}
.toc{position:sticky;top:88px;border-left:1px solid var(--line);padding-left:18px;}
.toc .tg{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);font-weight:600;margin-bottom:14px;}
.toc ol{list-style:none;margin:0;padding:0;}
.toc li{margin:0 0 2px;}
.toc a{display:block;font-size:12.5px;line-height:1.4;color:var(--muted);padding:6px 0 6px 10px;margin-left:-19px;border-left:2px solid transparent;transition:color .15s,border-color .15s;}
.toc a:hover{color:var(--ink);text-decoration:none;}
.toc a .n{font-variant-numeric:tabular-nums;color:var(--faint);margin-right:6px;font-size:11px;}
.toc a.active{color:var(--ink);border-left-color:var(--accent);font-weight:600;}
.toc .toc-meta{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:11px;color:var(--faint);line-height:1.6;}

.doc-sec{padding:0 0 56px;margin-bottom:56px;border-bottom:1px solid var(--line);}
.doc-sec:last-of-type{border-bottom:none;}
.doc-sec .sec-head{margin-bottom:22px;}
.doc-sec .sec-num{font-size:11px;letter-spacing:.14em;color:var(--accent);font-weight:600;text-transform:uppercase;margin-bottom:8px;}
.doc-sec h2{font-size:clamp(1.45rem,2vw,1.75rem);line-height:1.25;margin-bottom:6px;}
.doc-sec .sec-sub{font-size:13.5px;color:var(--muted);}
.doc-body{max-width:var(--maxw-read);}
.doc-body p{font-size:15px;line-height:1.72;color:var(--ink-2);}
body.lang-zh .doc-body p{font-size:15.5px;line-height:1.85;}
.doc-body h3{font-size:16px;margin:30px 0 10px;line-height:1.4;color:var(--ink);}
.doc-body h3:first-child{margin-top:0;}
.doc-body ul{margin:0 0 18px;padding-left:20px;}
.doc-body li{font-size:14.5px;line-height:1.68;color:var(--ink-2);margin-bottom:7px;}
.doc-body .highlight{color:var(--ink);font-weight:500;}
.num-em{font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink);}
.big-quote{font-size:16.5px;line-height:1.62;color:var(--ink);border-left:2px solid var(--accent-line);padding-left:16px;margin:0 0 20px;}

/* two-column split inside doc */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:start;}
.stack-sm > * + *{margin-top:14px;}

/* ---------- explore cards ---------- */
.explore-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.explore-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;background:#fff;transition:border-color .18s ease,background .18s ease;
}
.explore-card:hover{border-color:var(--accent-line);background:var(--bg-soft);text-decoration:none;}
.explore-card .ec-num{font-size:10.5px;letter-spacing:.12em;color:var(--faint);font-weight:600;margin-bottom:10px;}
.explore-card h3{font-size:14.5px;line-height:1.35;margin-bottom:8px;color:var(--ink);}
.explore-card p{font-size:12.5px;color:var(--muted);line-height:1.55;margin:0 0 14px;}
.explore-card .go{font-size:12px;color:var(--accent);margin-top:auto;display:inline-flex;gap:6px;align-items:center;}

/* ---------- references ---------- */
.ref-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.ref{display:grid;grid-template-columns:44px minmax(0,1fr) 150px;gap:16px;padding:15px 20px;border-bottom:1px solid var(--bg-tint);background:#fff;align-items:start;}
.ref:last-child{border-bottom:none;}
.ref:hover{background:var(--bg-soft);}
.ref .rid{font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:2px;}
.ref .rbody{font-size:14px;color:var(--ink);line-height:1.5;}
.ref .rbody .trunc{color:var(--faint);}
.ref .rmeta{font-size:11px;color:var(--muted);margin-top:4px;line-height:1.5;}
.ref .rstat{font-size:11px;color:var(--amber);text-align:right;line-height:1.4;padding-top:3px;}
body.lang-zh .ref{grid-template-columns:44px minmax(0,1fr) 128px;}
.refnote{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.6;}

/* ---------- quality notes ---------- */
.qn-table td.qn-id{font-family:var(--mono);font-size:12px;color:var(--accent);white-space:nowrap;}
.sev{display:inline-block;font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:2px 7px;border-radius:3px;}
.sev-high{background:#f6eeec;color:var(--risk);border:1px solid #e6d3ce;}
.sev-med{background:#faf8f2;color:var(--amber);border:1px solid #efe6d3;}
.sev-low{background:var(--bg-tint);color:var(--muted);border:1px solid var(--line-2);}

/* ---------- CTA ---------- */
.cta{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);
  padding:40px 40px 36px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:start;
}
.cta h2{font-size:clamp(1.4rem,2vw,1.7rem);line-height:1.25;margin-bottom:10px;}
.cta p{font-size:14px;color:var(--muted);margin:0;line-height:1.6;max-width:460px;}
.cta-options{display:grid;gap:10px;}
.cta-option{border:1px dashed var(--line-2);border-radius:var(--radius-sm);padding:14px 16px;background:#fff;}
.cta-option .co-t{font-size:13px;font-weight:600;margin-bottom:3px;}
.cta-option .co-d{font-size:11.5px;color:var(--muted);line-height:1.5;}
.cta-note{grid-column:1 / -1;font-size:11.5px;color:var(--faint);border-top:1px solid var(--line);padding-top:14px;line-height:1.55;margin:0;}

/* ---------- trust list ---------- */
.trust-list{list-style:none;counter-reset:tr;margin:0;padding:0;}
.trust-list li{counter-increment:tr;display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:13.5px;line-height:1.6;color:var(--ink-2);}
.trust-list li:last-child{border-bottom:1px solid var(--line);}
.trust-list li::before{content:counter(tr,decimal-leading-zero);font-size:10.5px;color:var(--accent);font-weight:600;padding-top:3px;letter-spacing:.04em;}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:40px 0 56px;background:var(--bg);}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);gap:40px;}
.footer-grid h3{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:12px;}
.footer-grid p{font-size:12px;color:var(--muted);line-height:1.6;margin:0 0 8px;}
.footer-grid a{color:var(--ink-2);font-size:12.5px;}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:32px;padding-top:18px;border-top:1px solid var(--bg-tint);font-size:11.5px;color:var(--faint);flex-wrap:wrap;}

/* ---------- back to top ---------- */
.totop{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-2);background:rgba(255,255,255,.94);
  display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
  color:var(--ink-2);
}
.totop.show{opacity:1;pointer-events:auto;}
.totop:hover{transform:translateY(-2px);border-color:var(--accent-line);color:var(--accent);}

/* ---------- tooltip ---------- */
.tip{
  position:fixed;z-index:80;pointer-events:none;background:#101513;color:#fff;border-radius:6px;
  padding:7px 10px;font-size:11.5px;line-height:1.45;max-width:240px;opacity:0;transform:translateY(3px);
  transition:opacity .12s ease;font-variant-numeric:tabular-nums;
}
.tip.show{opacity:1;}

/* ---------- page header (inner pages) ---------- */
.page-head{padding:56px 0 34px;border-bottom:1px solid var(--line);}
.page-head .eyebrow{margin-bottom:18px;}
.page-head h1{font-size:clamp(1.9rem,3vw,2.5rem);line-height:1.15;margin-bottom:14px;letter-spacing:-.025em;}
body.lang-zh .page-head h1{font-size:clamp(1.7rem,2.6vw,2.2rem);line-height:1.3;}
.page-head .ph-sub{font-size:15.5px;color:var(--ink-2);max-width:720px;line-height:1.65;margin:0;}
.page-head .ph-meta{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:20px;font-size:12px;color:var(--muted);}
.page-head .ph-meta span{display:inline-flex;gap:6px;align-items:center;}
.page-head .ph-meta b{font-weight:600;color:var(--ink-2);}

/* ---------- misc ---------- */
.src-tag{font-size:11px;color:var(--faint);}
.hr-thin{height:1px;background:var(--line);border:none;margin:26px 0;}
.mono-label{font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:.02em;}
.two-col-list{columns:2;column-gap:32px;}
.two-col-list li{break-inside:avoid;}
.small-text{font-size:12px;color:var(--muted);line-height:1.6;}
.data-note-inline{
  display:inline-flex;align-items:center;gap:5px;font-size:10.5px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--amber);background:var(--amber-soft);border:1px solid #ecdfc4;
  border-radius:4px;padding:2px 7px;vertical-align:middle;margin-left:6px;white-space:nowrap;
}
body.lang-zh .data-note-inline{letter-spacing:.02em;}

/* skip link */
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 14px;border:1px solid var(--line);z-index:100;}
.skip:focus{left:12px;top:12px;}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .layout{grid-template-columns:190px minmax(0,1fr);gap:36px;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .explore-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-visual{max-width:520px;}
  .findings{grid-template-columns:1fr;}
  .or-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:20px;}
  .cta{grid-template-columns:1fr;padding:28px;gap:24px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:24px;}
  .toc{position:static;border-left:none;border:1px solid var(--line);border-radius:var(--radius);
       padding:16px 18px;margin-bottom:32px;background:var(--bg-soft);}
  .toc ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px;}
  .toc a{margin-left:0;padding-left:8px;border-left-width:2px;}
  .toc .toc-meta{display:none;}
}
@media (max-width:720px){
  body{font-size:16px;}
  .wrap,.wrap-narrow{padding:0 20px;}
  .topbar-inner{padding:0 20px;height:auto;min-height:56px;gap:8px;flex-wrap:wrap;padding-top:9px;padding-bottom:9px;position:relative;}
  .brandmark{flex:1 1 auto;min-width:0;padding-right:86px;}
  .topnav{order:3;width:100%;margin-left:0;gap:2px;flex-wrap:wrap;overflow:visible;padding-bottom:2px;}
  .topnav a{font-size:12px;padding:6px 8px;white-space:nowrap;}
  .langswitch{position:absolute;right:16px;top:13px;margin:0;}
  .hero h1{font-size:1.85rem;letter-spacing:-.02em;}
  body.lang-zh .hero h1{font-size:1.72rem;}
  .lede{font-size:16px;}
  .langswitch a{font-size:11.5px;padding:5px 8px;}
  .section-link{white-space:normal;font-size:12.5px;}
  .toc a{white-space:normal;}
  section{padding:44px 0;}
  .hero{padding:40px 0 4px;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .kpi{min-height:150px;padding:18px 16px;}
  .kpi .num{font-size:30px;}
  .kpi .label{font-size:12.5px;}
  .meta-chips{grid-template-columns:1fr;gap:12px;}
  .explore-grid{grid-template-columns:1fr;}
  .finding{padding:20px;}
  .theme{padding:18px 18px;}
  .chart-card{padding:18px 14px 12px;}
  .chart-figure{display:none;}
  .chart-compact{display:block;margin-top:12px;}
  .doc-sec{padding-bottom:40px;margin-bottom:40px;}
  .toc ol{grid-template-columns:1fr;}
  .ref{grid-template-columns:32px minmax(0,1fr);gap:10px;}
  .ref .rstat{grid-column:2;text-align:left;padding-top:6px;}
  table.tbl{font-size:12.5px;min-width:520px;}
  table.tbl thead th,table.tbl td{padding:10px 12px;}
  .two-col-list{columns:1;}
  .cta-note{font-size:11px;}
  .totop{right:16px;bottom:16px;}
  .page-head{padding:36px 0 26px;}
}
@media (max-width:560px){
  .brandmark .b2{display:none;}
  .brandmark .separator{display:none;}
}
@media (max-width:430px){
  .kpi-grid{grid-template-columns:1fr;}
  .kpi{min-height:auto;}
}
@media print{
  .topbar,.toc,.totop,.progress,.cta,.tip{display:none !important;}
  body{font-size:11pt;}
  .layout{grid-template-columns:1fr;padding-top:0;}
  section{padding:20px 0;}
  .chart-card,.finding,.theme,.or-card{break-inside:avoid;}
  a{color:#000;}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important;transition:none !important;}
}