/* RD95 — scroll-driven mapping page */
:root{
  --bg:#f4f5f7; --bg-alt:#ffffff; --panel:#eceef2;
  --ink:#0d1015; --ink-2:#333a45; --muted:#5d6675; --muted-2:#8a93a1;
  --line:rgba(13,16,21,.16); --line-2:rgba(13,16,21,.09);
  --accent:#2b5fa8; --accent-soft:#e8eff9; --accent-ink:#ffffff;
  --stage:#eef0f4; --stage-ink:#161b22; --stage-muted:#5c6672;
  --stage-glass:rgba(250,251,253,.74); --stage-line:rgba(20,26,34,.12);
  --stage-scrim-a:rgba(238,240,244,.94); --stage-scrim-b:rgba(238,240,244,.30);
  --stage-vig:rgba(190,196,206,.55); --stage-inset:rgba(120,134,154,.20);
  --warm:#b2681a; --warm-ink:#ffffff; --live:#b2681a;
  --lg1:#12161c; --lg2:#ac6818; --lg3:#a6362a; --lg4:#b2bac6;
  --cyan:#b2681a;
  --radius:22px; --radius-s:14px; --nav-h:56px;
  --font:"IBM Plex Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --display:"Archivo","IBM Plex Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0b0d11; --bg-alt:#12151a; --panel:#171b22;
  --ink:#eef1f6; --ink-2:#c3cad6; --muted:#9aa4b4; --muted-2:#727d8f;
  --line:rgba(255,255,255,.12); --line-2:rgba(255,255,255,.06);
  --accent:#7ea9e8; --accent-soft:#1b2534; --accent-ink:#0b0d11;
  --stage:#0a0c10; --stage-ink:#e8eef6; --stage-muted:#79839a;
  --stage-glass:rgba(14,18,25,.62); --stage-line:rgba(255,255,255,.10);
  --stage-scrim-a:rgba(6,9,13,.90); --stage-scrim-b:rgba(6,9,13,.30);
  --stage-vig:rgba(4,6,9,.72); --stage-inset:rgba(4,6,9,.58);
  --warm:#e8a04a; --warm-ink:#12161c; --live:#e8a04a;
  --lg1:#eef4fb; --lg2:#e89e46; --lg3:#e25e4a; --lg4:#5a6474;
  --cyan:#e8a04a;
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0b0d11; --bg-alt:#12151a; --panel:#171b22;
    --ink:#eef1f6; --ink-2:#c3cad6; --muted:#9aa4b4; --muted-2:#727d8f;
    --line:rgba(255,255,255,.12); --line-2:rgba(255,255,255,.06);
    --accent:#7ea9e8; --accent-soft:#1b2534; --accent-ink:#0b0d11;
    --stage:#0a0c10; --stage-ink:#e8eef6; --stage-muted:#79839a;
    --stage-glass:rgba(14,18,25,.62); --stage-line:rgba(255,255,255,.10);
    --stage-scrim-a:rgba(6,9,13,.90); --stage-scrim-b:rgba(6,9,13,.30);
    --stage-vig:rgba(4,6,9,.72); --stage-inset:rgba(4,6,9,.58);
    --warm:#e8a04a; --warm-ink:#12161c; --live:#e8a04a;
    --lg1:#eef4fb; --lg2:#e89e46; --lg3:#e25e4a; --lg4:#5a6474;
    --cyan:#e8a04a;
    color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
section[id],header[id]{scroll-margin-top:calc(var(--nav-h) + 14px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul,figure{margin:0}
ul{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.wrap{width:min(1120px,calc(100% - 48px));margin-inline:auto}
@media (max-width:700px){ .wrap{width:calc(100% - 32px)} }

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;transition:background .3s,border-color .3s,color .3s;height:var(--nav-h);display:flex;align-items:center;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line-2)}
.nav__in{display:flex;align-items:center;gap:26px;width:100%}
.nav__mark{font-family:var(--display);font-weight:700;letter-spacing:.14em;font-size:14px}
.nav__links{display:flex;gap:22px;margin-left:auto;font-size:13.5px;color:var(--muted)}
.nav__links a:hover{color:var(--ink)}
.nav__t{margin-left:12px;width:34px;height:20px;border-radius:99px;background:var(--line);
  position:relative;transition:background .25s}
.nav__t::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-alt);box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .25s}
:root[data-theme="dark"] .nav__t::after{transform:translateX(14px)}
@media (max-width:700px){ .nav__links a:nth-child(n+3){display:none} }

/* hero */
.hero{padding:clamp(40px,6vw,84px) 0 clamp(18px,3vw,40px)}
.hero__top{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:end}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:600}
h1{font-family:var(--display);font-size:clamp(38px,6vw,78px);line-height:1.02;letter-spacing:-.025em;font-weight:680;margin:14px 0 0}
.hero__sub{margin-top:18px;font-size:clamp(16px,1.8vw,20px);color:var(--ink-2);max-width:36ch}
.hero__facts{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}
.fact b{display:block;font-family:var(--display);font-size:clamp(24px,3vw,34px);font-weight:620;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.fact b u{text-decoration:none;font-size:.44em;font-weight:500;color:var(--muted);margin-left:4px}
.fact span{font-size:12.5px;color:var(--muted)}

/* the walking band */
.walk{position:relative;margin:clamp(20px,3.5vw,44px) 0 0;width:100%;
  aspect-ratio:1680/505;max-height:54vh;overflow:hidden;
  background:
    radial-gradient(120% 130% at 50% 118%, color-mix(in srgb,var(--accent) 13%,transparent), transparent 62%),
    linear-gradient(180deg, transparent 0%, color-mix(in srgb,var(--accent) 4%,transparent) 100%)}
.walk canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.walk figcaption{position:absolute;right:clamp(16px,4vw,48px);bottom:10px;margin:0;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.02em;color:var(--muted-2)}
.scrollcue{margin-top:22px;font-size:12.5px;color:var(--muted-2);display:flex;align-items:center;gap:9px}
.scrollcue i{display:block;width:1px;height:26px;background:linear-gradient(var(--muted-2),transparent);animation:cue 1.9s ease-in-out infinite}
@keyframes cue{0%,100%{opacity:.25;transform:scaleY(.55);transform-origin:top}50%{opacity:1;transform:scaleY(1)}}
@media (max-width:820px){
  .hero__top{grid-template-columns:1fr;gap:26px;align-items:start}
  .hero__facts{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
  .walk{aspect-ratio:1100/500;max-height:46vh}
  .walk figcaption{display:none}
}

/* section heads */
.sec{padding:clamp(60px,9vw,120px) 0}
.sec--alt{background:var(--bg-alt);border-block:1px solid var(--line-2)}
.head{max-width:62ch}
.head h2{font-family:var(--display);font-size:clamp(28px,4vw,46px);line-height:1.1;letter-spacing:-.022em;font-weight:660}
.head p{margin-top:16px;color:var(--muted);font-size:clamp(15.5px,1.6vw,18px)}
.head .eyebrow{display:block;margin-bottom:12px}

/* ---- scan stage ---- */
.scan{background:var(--stage);color:var(--stage-ink);transition:background .35s ease}
.scan__track{height:460vh;position:relative}
.scan__sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.scan__canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.scan__vig{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 45%,transparent 45%,var(--stage-vig) 100%)}
.scan__scrim{position:absolute;left:0;right:0;top:0;height:46%;pointer-events:none;
  background:linear-gradient(180deg,var(--stage-scrim-a) 0%,var(--stage-scrim-b) 58%,transparent 100%)}
.scan__lead{position:absolute;left:0;right:0;top:calc(var(--nav-h) + clamp(12px,3.4vh,40px));text-align:center;padding-inline:20px;pointer-events:none}
.scan__lead .eyebrow{color:var(--warm)}
.scan__lead h2{font-family:var(--display);font-size:clamp(22px,3.1vw,36px);font-weight:620;letter-spacing:-.02em;margin-top:8px}
.scan__lead p{margin-top:8px;color:var(--stage-muted);font-size:clamp(13px,1.4vw,15.5px);max-width:46ch;margin-inline:auto}
.scan__lead{display:grid}
.scan__lead .s{grid-area:1/1;transition:opacity .45s ease,transform .45s ease}
.hud{position:absolute;right:clamp(14px,3vw,40px);top:50%;transform:translateY(-50%);
  width:236px;padding:16px 16px 14px;border-radius:var(--radius-s);
  background:var(--stage-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--stage-line);color:var(--stage-ink);font-size:13px;opacity:0;transition:opacity .5s}
.hud.on{opacity:1}
.hud__t{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--stage-muted)}
.hud__dot{width:7px;height:7px;border-radius:50%;background:var(--live);box-shadow:0 0 0 0 color-mix(in srgb,var(--live) 60%,transparent);animation:pulse 1.8s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px transparent}100%{box-shadow:0 0 0 0 transparent}}
.hud__row{display:flex;justify-content:space-between;align-items:baseline;padding:7px 0;border-top:1px solid var(--stage-line)}
.hud__row:first-of-type{border-top:0;margin-top:10px}
.hud__row span{color:var(--stage-muted);font-size:12px}
.hud__row b{font-weight:560;font-variant-numeric:tabular-nums;font-family:var(--mono);font-size:13.5px}
.hud__bar{height:3px;border-radius:2px;background:var(--stage-line);margin-top:12px;overflow:hidden}
.hud__bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--warm));transition:width .12s linear}
.hud__leg{display:flex;flex-wrap:wrap;gap:6px 12px;margin-top:12px;font-size:11px;color:var(--stage-muted)}
.hud__leg i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.scan__note{position:absolute;left:clamp(14px,3vw,40px);bottom:clamp(18px,4vh,42px);white-space:nowrap;
  font-size:12.5px;color:var(--stage-muted);font-family:var(--mono);letter-spacing:.01em}
@media (max-width:820px){
  .scan__track{height:400vh}
  .hud{right:12px;left:12px;width:auto;top:auto;bottom:14px;transform:none;display:flex;flex-wrap:wrap;gap:0 14px;padding:12px 14px}
  .hud__t{width:100%}
  .hud__row{flex:1 1 40%;border-top:0;padding:4px 0;gap:8px}
  .hud__bar{flex:1 1 100%}
  .hud__leg{display:none}
  .scan__note{display:none}
}

/* ---- dof ---- */
.dof__grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(24px,4vw,56px);
  align-items:center;margin-top:clamp(30px,5vw,56px)}
.dof__stage{position:relative;aspect-ratio:3/4;border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--line-2);overflow:hidden}
.dof__stage canvas{position:absolute;inset:0;width:100%;height:100%}
.dof__list{display:grid;gap:8px}
.jrow{display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:14px;
  padding:13px 16px;border-radius:var(--radius-s);border:1px solid var(--line-2);
  background:var(--bg-alt);cursor:default;transition:border-color .2s,background .2s,transform .2s}
.jrow:hover,.jrow.on{border-color:color-mix(in srgb,var(--accent) 45%,transparent);
  background:color-mix(in srgb,var(--accent) 6%,var(--bg-alt));transform:translateX(3px)}
.jrow em{font-style:normal;width:22px;height:22px;border-radius:50%;background:var(--accent-soft);
  color:var(--accent);font-size:11px;font-weight:650;display:grid;place-items:center}
:root[data-theme="dark"] .jrow em{background:var(--accent-soft)}
.jrow b{font-weight:560;font-size:15.5px}
.jrow b i{font-style:normal;color:var(--muted);font-weight:420;font-size:13px;margin-left:8px}
.jrow .ax{font-family:var(--mono);font-size:11.5px;color:var(--muted-2);letter-spacing:.04em}
.jrow .rg{font-family:var(--mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.dof__sum{display:flex;gap:26px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line-2);flex-wrap:wrap}
@media (max-width:860px){ .dof__grid{grid-template-columns:1fr} .dof__stage{max-width:380px;margin-inline:auto} }

/* ---- cards / specs ---- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));
  gap:14px;margin-top:clamp(28px,4vw,48px)}
.card{padding:24px;border-radius:var(--radius);background:var(--bg-alt);border:1px solid var(--line-2)}
.card b{display:block;font-family:var(--display);font-size:clamp(28px,3.4vw,40px);font-weight:620;letter-spacing:-.025em;
  font-variant-numeric:tabular-nums;line-height:1}
.card b u{text-decoration:none;font-size:.44em;font-weight:500;color:var(--muted);margin-left:4px}
.card h3{margin-top:14px;font-size:15.5px;font-weight:560}
.card p{margin-top:6px;font-size:13.5px;color:var(--muted)}
.specs{display:grid;gap:0;margin-top:clamp(26px,4vw,44px)}
.specs div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:20px;
  padding:16px 2px;border-top:1px solid var(--line-2);font-size:15px}
.specs div:last-child{border-bottom:1px solid var(--line-2)}
.specs dt{color:var(--muted);font-size:14px}
.specs dd{margin:0;font-variant-numeric:tabular-nums}
@media (max-width:700px){ .specs div{grid-template-columns:1fr;gap:2px} }

/* footer */
.foot{padding:52px 0 64px;border-top:1px solid var(--line-2);color:var(--muted);font-size:13px}
.foot__in{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .scrollcue i{animation:none}
  .hud__dot{animation:none}
}

/* nav over the dark mapping stage */
.nav--ghost{background:transparent;border-bottom-color:transparent;color:var(--stage-ink);--ink:var(--stage-ink);
  backdrop-filter:none;-webkit-backdrop-filter:none}
.nav--ghost .nav__links{color:var(--stage-muted)}
.nav--ghost .nav__links a:hover{color:var(--stage-ink)}
.nav--ghost .nav__t{background:color-mix(in srgb,var(--stage-ink) 20%,transparent)}

/* ---- manual driving ---- */
.sec--drive{background:var(--bg-alt);border-block:1px solid var(--line-2)}
.drive__wrap{display:grid;grid-template-columns:minmax(0,1fr) 248px;gap:clamp(16px,2.4vw,28px);
  align-items:start;margin-top:clamp(26px,4vw,46px)}
.drive__stage{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--stage);color:var(--stage-ink);transition:background .35s ease;
  aspect-ratio:2000/1230;max-width:100%;outline:none;border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow);touch-action:none;cursor:grab}
.drive__stage:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.drive__stage::after{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;
  box-shadow:inset 0 0 0 1px var(--stage-line),
             inset 0 0 90px 30px var(--stage-inset)}
.drive__stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.drive__pad{position:absolute;right:16px;bottom:16px;width:clamp(82px,10vw,104px);aspect-ratio:1;
  border-radius:50%;background:var(--stage-glass);border:1px solid var(--stage-line);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);touch-action:none;z-index:2}
@media (hover:hover) and (pointer:fine){ .drive__pad{display:none} }
.drive__pad i{position:absolute;left:50%;top:50%;width:38%;aspect-ratio:1;border-radius:50%;
  background:color-mix(in srgb,var(--stage-ink) 78%,transparent);transform:translate(-50%,-50%);transition:transform .06s linear;
  box-shadow:0 2px 10px rgba(0,0,0,.4)}
.drive__hint{position:absolute;left:14px;top:12px;margin:0;pointer-events:none;
  font-size:12px;color:var(--stage-ink);font-family:var(--mono);
  padding:6px 11px;border-radius:99px;background:var(--stage-glass);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1px solid var(--stage-line);max-width:calc(100% - 28px)}
.drive__side{display:grid;gap:8px}
.dstat{display:flex;justify-content:space-between;align-items:baseline;padding:11px 14px;
  border-radius:var(--radius-s);border:1px solid var(--line-2);background:var(--bg)}
.dstat span{font-size:12.5px;color:var(--muted)}
.dstat b{font-family:var(--mono);font-size:14px;font-weight:500;font-variant-numeric:tabular-nums}
.dgoals{display:grid;gap:4px;margin-top:6px;counter-reset:g}
.dgoal{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:12px;font-size:14px;
  color:var(--muted);transition:color .25s,background .25s}
.dgoal i{font-style:normal;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;
  font-size:11px;font-weight:600;background:var(--line-2);color:var(--muted-2);transition:all .25s}
.dgoal.on{color:var(--ink);background:color-mix(in srgb,#2fa98a 12%,transparent)}
.dgoal.on i{background:#2fa98a;color:#fff}
.dkeys{display:flex;flex-wrap:wrap;align-items:center;gap:5px;margin-top:10px;font-size:12px;color:var(--muted)}
.dkeys kbd{font-family:var(--mono);font-size:11px;padding:3px 7px;border-radius:6px;
  border:1px solid var(--line);background:var(--bg);color:var(--ink-2)}
.dbtn{margin-top:8px;padding:11px 14px;border-radius:var(--radius-s);border:1px solid var(--line);
  background:var(--bg);font-size:14px;transition:border-color .2s,background .2s}
.dbtn:hover{border-color:color-mix(in srgb,var(--accent) 50%,transparent);
  background:color-mix(in srgb,var(--accent) 7%,var(--bg))}
@media (max-width:860px){
  .drive__wrap{grid-template-columns:1fr}
  .drive__stage{aspect-ratio:2000/1300}
  .drive__side{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .dstat{flex-direction:column;gap:2px;align-items:flex-start}
  .dgoals,.dkeys,.dbtn{grid-column:1 / -1}
  .dgoals{grid-auto-flow:column;grid-auto-columns:1fr;gap:4px}
  .dgoal{flex-direction:column;gap:5px;font-size:11.5px;text-align:center;padding:8px 4px}
}

/* language switch */
.nav__lang{margin-left:6px;padding:5px 11px;border-radius:99px;font-size:12px;font-weight:600;
  letter-spacing:.06em;border:1px solid var(--line);color:var(--muted);
  transition:color .2s,border-color .2s,background .2s}
.nav__lang:hover{color:var(--ink);border-color:color-mix(in srgb,var(--warm) 55%,transparent);
  background:color-mix(in srgb,var(--warm) 9%,transparent)}
.nav--ghost .nav__lang{border-color:var(--stage-line);color:var(--stage-muted)}
.nav--ghost .nav__lang:hover{color:var(--stage-ink)}

/* warm accent: live and active states */
.hud__row b{color:var(--stage-ink)}
.dgoal.on{background:color-mix(in srgb,var(--warm) 14%,transparent)}
.dgoal.on i{background:var(--warm);color:var(--warm-ink)}
.card:nth-child(2n) b u,.fact b u{color:var(--muted)}
.card b{color:var(--ink)}
.card:nth-child(3) b,.card:nth-child(4) b{color:var(--warm)}
.dbtn:hover{border-color:color-mix(in srgb,var(--warm) 55%,transparent);
  background:color-mix(in srgb,var(--warm) 8%,var(--bg))}
.jrow:hover,.jrow.on{border-color:color-mix(in srgb,var(--warm) 50%,transparent);
  background:color-mix(in srgb,var(--warm) 7%,var(--bg-alt))}
.jrow em{background:color-mix(in srgb,var(--warm) 14%,transparent);color:var(--warm)}
.walk{background:
  radial-gradient(120% 130% at 50% 118%, color-mix(in srgb,var(--warm) 11%,transparent), transparent 62%),
  linear-gradient(180deg, transparent 0%, color-mix(in srgb,var(--accent) 5%,transparent) 100%)}

/* ================= RD95 case study, v4 (10/15) =================
   Leo: "优化整体交互 让其不要那么 AI，特别是字体和信息数量". So: the portfolio's own tokens and type (site.css / case.css:
   Inter, #1d1d1f / #6e6e73, white and #f5f5f7, black in dark, accent #0071e3), one family, sentence case, no letter-spaced
   capitals, no pills, no mono, few numbers. Appended to the original RD96 style.css, so it overrides it. */
:root{
  --bg:#ffffff; --bg-alt:#f5f5f7; --panel:#f5f5f7;
  --ink:#1d1d1f; --ink-2:#1d1d1f; --muted:#6e6e73; --muted-2:#86868b;
  --line:rgba(0,0,0,.12); --line-2:rgba(0,0,0,.08);
  --accent:#0071e3; --accent-soft:#e8f1fc; --warm:#b25d00;
  --font:"Inter",-apple-system,"SF Pro Text","Helvetica Neue","PingFang SC",system-ui,sans-serif;
  --display:"Inter",-apple-system,"SF Pro Display","Helvetica Neue","PingFang SC",system-ui,sans-serif;
  --mono:var(--font);
  --radius:22px; --radius-s:14px;
}
:root[data-theme="dark"]{
  --bg:#000000; --bg-alt:#111113; --panel:#1c1c1e;
  --ink:#f5f5f7; --ink-2:#f5f5f7; --muted:#a1a1a6; --muted-2:#86868b;
  --line:rgba(255,255,255,.16); --line-2:rgba(255,255,255,.09);
  --accent:#2997ff; --accent-soft:#0b2340; --warm:#ff9f0a;
}
body{font-size:17px;line-height:1.6;letter-spacing:-.003em}
h1{font-weight:600;letter-spacing:-.03em;line-height:1.05;font-size:clamp(40px,6vw,72px)}
.eyebrow{display:block;font-size:15px;font-weight:500;letter-spacing:0;text-transform:none;color:var(--muted)}
.sec{padding:clamp(72px,10vw,128px) 0}
.sec--alt{background:var(--bg-alt);border:0}
.head{max-width:44rem}
.head h2,.chap__h{font-family:var(--display);font-size:clamp(28px,3.6vw,40px);line-height:1.15;letter-spacing:-.022em;font-weight:600}
.head p{margin-top:14px;color:var(--muted);font-size:clamp(17px,1.6vw,19px);line-height:1.6}
.chap__tag{margin:0 0 12px;font-size:15px;font-weight:500;color:var(--muted)}
.reveal{transform:translateY(10px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{transform:none}

/* nav */
.nav{border-bottom-color:var(--line-2)}
.nav__mark{font-weight:600;letter-spacing:0;font-size:15px}
.nav__home{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav__back{display:inline-flex;align-items:center;gap:2px;font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap}
.nav__back svg{width:16px;height:16px;flex:0 0 auto}
.nav__all{font-size:14px;color:var(--muted);white-space:nowrap}
.nav__back:hover,.nav__all:hover{color:var(--ink)}
.nav__sep{width:1px;height:16px;background:var(--line)}
.nav__links{gap:20px;font-size:14px}
.nav .nav__in{width:min(1280px,calc(100% - 48px))}
.foot__links{display:flex;gap:22px}
.foot__links a:hover{color:var(--ink)}
@media (max-width:1180px){.nav__all,.nav__sep{display:none}}
@media (max-width:1000px){.nav__links a:nth-child(n+5){display:none}}
@media (max-width:700px){.nav__in{gap:14px}.nav__back span{display:none}.nav__links{gap:14px}.nav .nav__in{width:calc(100% - 32px)}}

/* hero: the introduction on the left, one render on the right */
.hero--render{padding:clamp(24px,3vw,48px) 0 clamp(48px,6vw,88px);overflow-x:clip}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(24px,4vw,64px);align-items:center}
.hero h1{margin-top:12px;max-width:12ch}
.hero__sub{margin-top:22px;font-size:clamp(18px,1.8vw,21px);line-height:1.55;color:var(--ink);max-width:34ch}
.hero__role{margin-top:18px;font-size:15px;color:var(--muted)}
.hero__render{margin:0;position:relative;display:flex;justify-content:center;height:min(80vh,780px);min-height:460px}
.hero__render::after{content:"";position:absolute;left:50%;bottom:0;width:min(60%,300px);height:24px;transform:translate(-50%,45%);
  background:radial-gradient(closest-side,rgba(0,0,0,.16),transparent)}
:root[data-theme="dark"] .hero__render::after{background:radial-gradient(closest-side,rgba(255,255,255,.08),transparent)}
.hero__render img{position:relative;z-index:1;height:100%;width:auto;max-width:100%;object-fit:contain}
@media (max-width:820px){.hero__grid{grid-template-columns:1fr}.hero__render{height:min(64vh,500px);min-height:0}}

/* pictures on white, also in dark mode (drawings and renders are on white) */
.pi{margin:0;border-radius:var(--radius);background:#fff;overflow:hidden}
.pi img{width:100%;height:auto}
figcaption{margin-top:10px;font-size:14px;color:var(--muted)}

/* 01 · the neck */
.neck{margin-top:clamp(32px,4vw,52px)}
.neck .pi{padding:clamp(10px,2vw,22px)}
.neck__row{display:flex;gap:clamp(14px,2vw,24px);margin-top:clamp(14px,2vw,24px);align-items:flex-start}
.neck__row figure{margin:0;min-width:0}
.neck__row img{width:100%;height:auto;border-radius:var(--radius-s)}
@media (max-width:700px){.neck__row{flex-direction:column}.neck__row figure{flex:none!important}}

/* the G1+ film (Unitree), a few quiet lines over its empty left half; under it on phones */
.ship--film{position:relative;display:block;margin:clamp(40px,5vw,64px) 0 0;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:#060610;color:#f5f5f7}
.ship__vid{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.ship--film .ship__text{position:absolute;left:clamp(20px,5%,64px);top:50%;transform:translateY(-50%);max-width:min(40%,400px);z-index:1;margin:0}
.ship__k{font-size:15px;color:#a1a1a6}
.ship__dof{margin-top:8px;font-size:clamp(36px,4.6vw,56px);line-height:1.05;font-weight:600;letter-spacing:-.025em;color:#f5f5f7}
.ship__rng{margin-top:8px;font-size:clamp(15px,1.4vw,17px);color:#e8e8ed}
.ship__src{margin-top:18px;font-size:12.5px;color:#86868b}
@media (max-width:760px){
  .ship--film{aspect-ratio:auto}
  .ship__vid{position:relative;aspect-ratio:16/9;height:auto}
  .ship--film .ship__text{position:static;transform:none;max-width:none;padding:4px 20px 22px}
}

/* 02 · what a moving head changes */
.hm{margin-top:clamp(32px,4vw,52px);display:grid}
.hm__row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(60px,.55fr) minmax(0,1.4fr);align-items:center;gap:0 24px;
  padding:18px 0;border-top:1px solid var(--line-2)}
.hm__row:last-child{border-bottom:1px solid var(--line-2)}
.hm__cue{font-size:18px;font-weight:500}
.hm__band{display:block;height:calc(var(--n) / 128 * 56px + 6px);border-radius:3px;
  background:linear-gradient(90deg,color-mix(in srgb,var(--accent) 8%,transparent),color-mix(in srgb,var(--accent) 34%,transparent))}
.hm__fx{font-size:15px;color:var(--muted)}
.hm__fx b{display:block;font-size:20px;font-weight:600;color:var(--ink);letter-spacing:-.01em;font-variant-numeric:tabular-nums}
@media (max-width:760px){
  .hm__row{grid-template-columns:1fr;gap:8px}
  .hm__band{width:calc(var(--n) / 128 * 100%);min-width:24px;height:4px}
}
details.src{margin-top:18px;font-size:14px;color:var(--muted)}
details.src summary{cursor:pointer;width:max-content;list-style:none}
details.src summary::-webkit-details-marker{display:none}
details.src summary::after{content:" +";color:var(--muted-2)}
details.src[open] summary::after{content:" −"}
details.src summary:hover{color:var(--ink)}
details.src p{margin-top:8px;max-width:70ch;font-size:13.5px;line-height:1.6}
details.src a{color:var(--accent)}

.bridge{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,64px);align-items:center;margin-top:clamp(56px,7vw,96px)}
.quote{margin:0;padding:22px 26px;background:var(--bg);border-left:2.5px solid var(--ink);border-radius:0 var(--radius) var(--radius) 0}
.quote p{font-size:17px;line-height:1.65}
.quote cite{display:block;margin-top:12px;font-style:normal;font-size:14px;color:var(--muted)}
.bridge__next{font-size:clamp(19px,2vw,23px);line-height:1.5;font-weight:500;letter-spacing:-.01em}
@media (max-width:860px){.bridge{grid-template-columns:1fr}}

/* 03 · RD95 */
.ov{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,72px);align-items:center}
.ov__fig{margin:0;border-radius:var(--radius);background:#fff;padding:clamp(18px,3vw,40px) clamp(18px,3vw,40px) 0;display:flex;justify-content:center;overflow:hidden}
.ov__fig img{width:auto;max-width:100%;max-height:min(600px,70vh)}
.chap__h{margin-bottom:18px}
.ov__p{font-size:clamp(17px,1.6vw,19px);line-height:1.65;color:var(--ink);max-width:40ch}
@media (max-width:860px){.ov{grid-template-columns:1fr}.ov__fig img{max-height:420px}}
/* the joints, from the earlier site: names and ranges only */
#dof .jrow .ax{display:none}
#dof .jrow{grid-template-columns:auto 1fr auto}
#dof .jrow b{font-weight:500}
#dof .jrow .rg{font-size:13.5px}
#dof .jrow em{background:var(--bg-alt);color:var(--muted)}
#dof .dof__stage{background:var(--bg-alt)}
@media (max-width:860px){.dof__stage{width:100%}}

/* 04 · a day with RD95, the dial (assets/day.js) */
.dd{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:clamp(24px,4vw,64px);align-items:center;margin-top:clamp(32px,4vw,52px)}
.dd__stage{min-width:0}
.dd__svg{display:block;width:100%;height:auto;max-width:660px;margin-inline:auto;touch-action:pan-y;user-select:none;-webkit-user-select:none;overflow:visible}
:root{--dd-day:#ffffff;--dd-band:#f3f6fb;--dd-core:#f8f9fb;--dd-line:rgba(0,0,0,.09);--dd-hub:#ffffff;--dd-hr:#86868b}
:root[data-theme="dark"]{--dd-day:#161618;--dd-band:#1c1d21;--dd-core:#18191c;--dd-line:rgba(255,255,255,.1);--dd-hub:#1c1c1e;--dd-hr:#a1a1a6}
.dd__day{fill:var(--dd-day)} .dd__band{fill:var(--dd-band)} .dd__core{fill:var(--dd-core)}
.dd__ring{fill:none;stroke:var(--dd-line);stroke-width:9}
.dd__rim{fill:none;stroke:var(--dd-line);stroke-width:14}
.dd__tick{stroke:var(--dd-line);stroke-width:10}
.dd__tick.is-night{stroke:rgba(255,255,255,.3)}
.dd__hr{font:500 112px/1 var(--font);fill:var(--dd-hr);text-anchor:middle;dominant-baseline:middle}
.dd__hr.is-night{fill:rgba(255,255,255,.85)}
.dd__ml{font:500 84px/1 var(--font);fill:rgba(255,255,255,.8)}
.dd__spoke{stroke:var(--accent);stroke-width:8;opacity:.28;transition:opacity .35s,stroke-width .35s}
.dd__spoke.is-on{opacity:.9;stroke-width:14}
.dd__t{cursor:pointer;outline:none;transition:opacity .35s}
.dd__t image{transition:transform .45s ease;transform-box:fill-box;transform-origin:50% 100%}
.dd__hit{fill:transparent}
.dd__tl{font:500 104px/1 var(--font);fill:var(--ink);text-anchor:middle;pointer-events:none;opacity:0;transition:opacity .3s}
.dd.is-focus .dd__t{opacity:.45}
.dd.is-focus .dd__t.is-on,.dd__t:hover,.dd__t:focus-visible{opacity:1}
.dd__t.is-on .dd__tl,.dd__t:hover .dd__tl,.dd__t:focus-visible .dd__tl{opacity:1}
.dd__t.is-on image{transform:scale(1.1)}
.dd__t:focus-visible .dd__hit{stroke:var(--accent);stroke-width:12}
.dd__dot{fill:#ffd27a;stroke:#0b1a45;stroke-width:16}
.dd__t.is-on .dd__dot{fill:#fff3cf}
.dd__arc{fill:rgba(255,210,122,.7)}
.dd__rest{pointer-events:none}
.dd__hub{fill:var(--dd-hub);stroke:var(--dd-line);stroke-width:10}
.dd__hubimg{pointer-events:none}
.dd__handl{stroke:var(--ink);stroke-width:12;stroke-linecap:round;opacity:.7}
.dd__knob{fill:var(--accent);stroke:var(--dd-day);stroke-width:20}
.dd[data-kind="night"] .dd__knob{fill:#ffd27a;stroke:#0b1a45}
.dd__side{min-width:0}
.dd__card{padding:clamp(22px,2.6vw,32px);border-radius:var(--radius);background:var(--bg);min-height:330px}
.dd__card.is-in>*{animation:ddIn .4s ease both}
@keyframes ddIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.dd__top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:14px}
.dd__mode{font-weight:500;color:var(--accent)}
.dd__card[data-mode="wait"] .dd__mode{color:var(--warm)}
.dd__card[data-mode="night"] .dd__mode{color:#8a6a1e}
:root[data-theme="dark"] .dd__card[data-mode="night"] .dd__mode{color:#ffd27a}
.dd__n{color:var(--muted-2);font-variant-numeric:tabular-nums}
.dd__name{margin-top:14px;font-size:clamp(26px,2.6vw,32px);font-weight:600;letter-spacing:-.02em;line-height:1.15}
.dd__does{margin-top:10px;font-size:clamp(18px,1.7vw,20px);line-height:1.45;color:var(--ink)}
.dd__ev{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-2)}
.dd__num{display:block;font-size:22px;font-weight:600;letter-spacing:-.01em;color:var(--ink);font-variant-numeric:tabular-nums}
.dd__txt{margin-top:2px;font-size:15px;color:var(--muted)}
.dd__src{display:block;margin-top:8px;font-size:12.5px;color:var(--muted-2)}
.dd__ctl{display:flex;align-items:center;gap:10px;margin-top:16px}
.dd__btn{width:40px;height:40px;border-radius:50%;background:var(--bg);display:grid;place-items:center;color:var(--ink);transition:background .2s}
.dd__btn:hover{background:var(--line-2)}
.dd__btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.dd__play svg{fill:currentColor;stroke:none}
.dd__play .i-pause{display:none}
.dd.is-playing .dd__play .i-pause{display:block}
.dd.is-playing .dd__play .i-play{display:none}
.dd__key{display:flex;flex-wrap:wrap;gap:6px 18px;margin:22px 0 0;padding:0;list-style:none;font-size:14px;color:var(--muted)}
.dd__key li::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px;background:var(--accent);vertical-align:1px}
.dd__key li[data-mode="wait"]::before{background:var(--warm)}
.dd__key li[data-mode="night"]::before{background:#ffd27a;box-shadow:0 0 0 1.5px #0b1a45}
.dd__note{margin-top:8px;font-size:14px;color:var(--muted);max-width:40ch}
@media (max-width:980px){.dd{grid-template-columns:1fr}.dd__svg{max-width:560px}.dd__card{min-height:0}}
@media (max-width:560px){.dd__hr{font-size:140px}.dd__ml{font-size:100px}}

/* every job starts the same way */
.steps{margin-top:clamp(56px,7vw,96px)}
.steps h3{font-size:clamp(20px,2vw,24px);font-weight:600;letter-spacing:-.015em}
.steps ol{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0 20px;margin:20px 0 0;padding:0;list-style:none}
.steps li{padding-top:14px;border-top:1px solid var(--line);font-size:14.5px;color:var(--muted);line-height:1.45}
.steps li b{display:block;margin-bottom:2px;font-size:17px;font-weight:600;color:var(--ink)}
@media (max-width:900px){.steps ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 20px}}
@media (max-width:520px){.steps ol{grid-template-columns:1fr 1fr}}

/* the gap the research leaves, and the step to D2 */
.gap{margin-top:clamp(56px,7vw,96px);max-width:46rem}
.gap p{font-size:clamp(18px,1.8vw,21px);line-height:1.55;color:var(--muted)}
.gap .gap__line{margin-top:18px;font-size:clamp(26px,3.2vw,38px);line-height:1.15;font-weight:600;letter-spacing:-.022em;color:var(--ink)}
.gap + details.src{margin-top:28px}

/* 05 · D2 */
.arm__hero{margin:clamp(32px,4vw,52px) 0 0;border-radius:var(--radius);overflow:hidden;background:radial-gradient(120% 100% at 50% 100%,#e8ebf0,#f7f8fa 70%)}
:root[data-theme="dark"] .arm__hero{background:radial-gradient(120% 100% at 50% 100%,#1d2027,#0d0e11 70%)}
.arm__hero img{width:100%;height:auto}   /* 10/16: a full-width 16:9 scene (it was a cut-out kept under 620 px) */
.arm__pts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,40px);margin-top:clamp(26px,3.4vw,40px)}
.pt h3{font-size:18px;font-weight:600;letter-spacing:-.01em}
.pt p{margin-top:6px;font-size:15.5px;color:var(--muted);line-height:1.55}
.arm__pair{display:grid;grid-template-columns:1fr 1fr;gap:clamp(12px,2vw,24px);margin-top:clamp(28px,4vw,48px)}
.arm__pair figure{margin:0}
.arm__pair img{width:100%;height:auto;border-radius:var(--radius-s)}
.line{margin-top:22px;font-size:14px;color:var(--muted)}
@media (max-width:860px){.arm__pts{grid-template-columns:1fr}}
@media (max-width:560px){.arm__pair{grid-template-columns:1fr}}

/* 06 · making RD95 */
.bodyg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.78fr) minmax(0,1.15fr);gap:clamp(14px,2vw,24px);margin-top:clamp(32px,4vw,52px);align-items:start}
.bodyg__col{display:grid;gap:clamp(14px,2vw,24px)}
.panel{margin:0}
.panel .pi{padding:clamp(10px,1.4vw,18px)}
.panel--tall .pi{padding:clamp(18px,3vw,40px) clamp(10px,2vw,24px)}
.panel a{display:block;cursor:zoom-in}
@media (max-width:960px){.bodyg{grid-template-columns:1fr 1fr}.panel--tall{grid-row:span 2}}
@media (max-width:620px){.bodyg{grid-template-columns:1fr}.panel--tall{grid-row:auto}.panel--tall .pi{max-width:340px;margin-inline:auto}}
.proto{display:flex;gap:clamp(12px,2vw,24px);margin-top:clamp(28px,4vw,48px);align-items:flex-start}
.proto figure{margin:0;min-width:0}
.proto img{width:100%;height:auto;border-radius:var(--radius-s)}
@media (max-width:860px){.proto{flex-direction:column}.proto figure{flex:none!important}}

.foot{border-top:1px solid var(--line-2);font-size:13.5px}

/* hero: the three projects as a short list (10/16, Leo: "图片选择和排版都很差 要好好处理"; was three small tiles) — one row
   each: a square portrait on one dark ground (G1+ tilting its head, from Unitree's film; RD95 and D2 composited onto
   the film's own background so the three read as a set), the name and one line, an arrow down; hairlines between the
   rows, and the whole row jumps to its chapter */
.hero__works{list-style:none;margin:28px 0 0;padding:0;max-width:540px;border-top:1px solid var(--line-2)}
.hero__works li{border-bottom:1px solid var(--line-2)}
.hero__works a{display:grid;grid-template-columns:96px minmax(0,1fr) 20px;align-items:center;gap:20px;padding:12px 4px 12px 0;color:inherit;text-decoration:none}
.hw__img{display:block;width:96px;height:96px;border-radius:16px;overflow:hidden;background:#06060f}
.hw__img img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.hw__txt{min-width:0}
.hero__works b{display:block;font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--ink)}
.hw__t{display:block;margin-top:3px;font-size:15px;line-height:1.4;color:var(--muted);text-wrap:pretty}
.hw__go{width:18px;height:18px;color:var(--muted-2);transition:transform .25s ease,color .25s ease}
.hero__works a:hover .hw__img img{transform:scale(1.06)}
.hero__works a:hover .hw__go{transform:translateY(2px);color:var(--ink)}
.hero__works a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:12px}
.hero--render .hero__sub{max-width:38ch}
@media (max-width:560px){.hero__works{margin-top:22px}.hero__works a{grid-template-columns:76px minmax(0,1fr) 18px;gap:14px;padding:10px 0}.hw__img{width:76px;height:76px;border-radius:13px}.hero__works b{font-size:16px}.hw__t{font-size:14px}}
@media (prefers-reduced-motion:reduce){.hw__img img,.hw__go{transition:none}}

/* the dial card (10/16): who should do it — the job-table score on a 1 to 5 scale (under 3 Wait for me, 3 to 4 Show me
   first, 4 and up On your own, which no job reached) — then why RD95 does it that way, with its source */
.dd__who[hidden],.dd__why[hidden]{display:none}
.dd__who{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-2)}
.dd__wtxt{font-size:15.5px;line-height:1.45;color:var(--ink)}
.dd__wsrc b{font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.dd__scale{position:relative;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2px;height:6px;margin:14px 0 8px}
.dd__scale i{border-radius:3px;background:var(--line-2)}
.dd__scale i:nth-child(1){background:color-mix(in srgb,var(--warm) 26%,transparent)}
.dd__scale i:nth-child(2){background:color-mix(in srgb,var(--accent) 26%,transparent)}
.dd__mark{position:absolute;top:-3px;height:12px;left:var(--l,50%);width:calc(var(--w,0%) + 12px);margin-left:-6px;border-radius:6px;
  background:var(--accent);box-shadow:0 0 0 2px var(--bg);transition:left .45s cubic-bezier(.2,.8,.2,1),width .45s cubic-bezier(.2,.8,.2,1)}
.dd__card[data-mode="wait"] .dd__mark{background:var(--warm)}
.dd__ends{display:grid;grid-template-columns:1fr auto 1fr;font-size:12px;color:var(--muted-2)}
.dd__ends span:nth-child(2){text-align:center}
.dd__ends span:nth-child(3){text-align:right}
.dd__who small,.dd__why small{display:block;margin-top:8px;font-size:12.5px;color:var(--muted-2)}
.dd__why{margin-top:18px}
.dd__who[hidden]+.dd__why{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-2)}
/* the tallest card, so the buttons under it stay put while the day plays */
@media (min-width:981px){.dd__card{min-height:452px}}
.dd__wy{font-size:15.5px;line-height:1.5;color:var(--ink-2);text-wrap:pretty}
.dd__wy b{font-weight:600;color:var(--ink)}
@media (prefers-reduced-motion:reduce){.dd__mark{transition:none}}

/* 10/16 copy rewrite (pr_copy_patch-v1): the RD95 chapter has two paragraphs now */
.ov__p + .ov__p{margin-top:14px}

/* 10/21 (Leo: "点到晚上之后把页面也弄成黑色"): day.js flips data-theme while a night stop is showing.
   .theme-x is on for the half second the colours cross over, so the page fades instead of snapping.
   Not opacity or transform: the dial's own highlight and the card's entry animation keep their timing. */
html.theme-x,html.theme-x *,html.theme-x *::before,html.theme-x *::after{
  transition:background-color .5s ease,background-image .5s ease,border-color .5s ease,color .5s ease,
    fill .5s ease,stroke .5s ease,box-shadow .5s ease!important}
@media (prefers-reduced-motion:reduce){
  html.theme-x,html.theme-x *,html.theme-x *::before,html.theme-x *::after{transition:none!important}}