/* ==========================================================================
   YITONG sub-pages (about / craft) — shared layer on top of site.css
   ========================================================================== */

html.i18n-wait body { visibility: hidden; }

/* site.css sets overflow-x:hidden on html AND body, which turns body into a
   scroll container and breaks position:sticky. Keep the clip on html only. */
body.page-sub {
  overflow-x: visible !important;
  overflow-x: clip !important;
}
body.page-sub.pg-lock { overflow-y: visible !important; }

.mono { font-family: var(--font-mono); }

.pg-main { position: relative; z-index: 2; }
/* site.css reserves 88px on the left for the old sub-page rail, which these pages don't use */
body.page-sub .pg-main,
body.page-sub .pg-main section > .container { padding-left: 0; }

body.pg-leave .pg-main > header,
body.pg-leave .pg-main > .cr-scroller {
  opacity: 0;
  transition: opacity .28s ease;
}

/* sections that should show the atmosphere instead of the glass wash */
html body.page-sub section.pg-clear:not(#intro):not(.hero) {
  background: transparent !important;
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
  border-top: 0 !important;
  box-shadow: none !important;
}

/* ---------- type ---------- */
.pg-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font: 500 12px/1.2 var(--font-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--type-eyebrow, rgba(127, 178, 255, .78));
}
.pg-eyebrow i {
  display: block;
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, rgba(127, 178, 255, .95), rgba(127, 233, 255, 0));
}
:root[data-lang="zh"] .pg-eyebrow { letter-spacing: .16em; }

.pg-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--prem-type-section, clamp(2.1rem, 4.6vw, 3.75rem));
  line-height: 1.05;
  letter-spacing: -.025em;
  color: var(--type-ink, #f4f6fa);
  text-wrap: balance;
}
.pg-title em,
.pg-grad {
  font-style: normal;
  background: linear-gradient(100deg, #8fbcff 0%, #7fe9ff 48%, #a99bff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root[data-lang="zh"] .pg-title {
  font-family: var(--font-zh);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.22;
}

.pg-lead {
  max-width: 580px;
  margin: 0;
  font-size: var(--prem-type-lead, clamp(1.05rem, 1.55vw, 1.22rem));
  line-height: 1.75;
  color: var(--type-body, #9aa3b5);
}

.pg-head { max-width: 780px; margin-bottom: clamp(44px, 6vw, 76px); }
.pg-head .pg-lead { margin-top: 4px; }
.pg-head-split {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 24px 72px;
  align-items: end;
}
.pg-head-split .pg-title { margin-bottom: 0; }
.pg-head-split .pg-lead { justify-self: end; }

.pg-glass {
  background: linear-gradient(165deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .018));
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .32), inset 0 1px 0 rgba(255, 255, 255, .07);
}

/* ---------- reveal ---------- */
.pg-main [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity .9s cubic-bezier(.16, 1, .3, 1), transform 1.1s cubic-bezier(.16, 1, .3, 1);
}
.pg-main [data-reveal].in { opacity: 1; transform: none; }
.pg-main [data-reveal][data-reveal-delay="1"] { transition-delay: .12s; }
.pg-main [data-reveal][data-reveal-delay="2"] { transition-delay: .24s; }

[data-stagger]:not(.in) > * { opacity: 0; }
[data-stagger].in > * {
  animation: pgRise 1s cubic-bezier(.16, 1, .3, 1) backwards;
  animation-delay: calc(var(--i, 0) * 75ms);
}
@keyframes pgRise {
  from { opacity: 0; transform: translate3d(0, 34px, 0); }
  to { opacity: 1; transform: none; }
}

/* ---------- CTA band ---------- */
.pg-cta { padding-top: clamp(40px, 6vw, 80px) !important; }
.pg-cta-card {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(44px, 7vw, 96px) clamp(24px, 6vw, 80px);
  border-radius: 28px;
  text-align: center;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(59, 130, 246, .24), rgba(59, 130, 246, 0) 60%),
    linear-gradient(165deg, rgba(22, 32, 50, .86), rgba(9, 13, 22, .9));
  border: 1px solid rgba(127, 178, 255, .24);
  box-shadow: 0 40px 100px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .08);
}
.pg-cta-card .pg-title { max-width: 860px; margin-inline: auto; }
.pg-cta-card .pg-lead { margin: 0 auto 36px; }
.pg-cta-glow {
  position: absolute;
  z-index: -1;
  inset: -40% -10% auto;
  height: 120%;
  background: conic-gradient(from 180deg at 50% 50%, rgba(127, 233, 255, 0), rgba(127, 233, 255, .18), rgba(59, 130, 246, 0), rgba(169, 155, 255, .16), rgba(127, 233, 255, 0));
  filter: blur(40px);
  animation: pgSpin 18s linear infinite;
  pointer-events: none;
}
.pg-cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
@keyframes pgSpin { to { transform: rotate(360deg); } }

/* ---------- lightbox ---------- */
.yt-lightbox {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  color: #fff;
  background: rgba(4, 6, 10, .9);
  overflow: hidden;
}
.yt-lightbox[open] {
  display: grid;
  grid-template-rows: auto 1fr;
  animation: lbIn .38s cubic-bezier(.22, 1, .36, 1) both;
}
.yt-lightbox::backdrop {
  background: rgba(0, 0, 0, .55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.lb-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
}
.lb-caption { font: 600 15px/1.3 var(--font-ui); color: #eef3fb; }
.lb-count { font: 500 12px/1 var(--font-mono); letter-spacing: .14em; color: #8fa0bb; }
.lb-close {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .06);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background .25s, transform .25s;
}
.lb-close:hover { background: rgba(255, 255, 255, .14); transform: rotate(90deg); }
.lb-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  padding: 0 clamp(12px, 6vw, 96px) clamp(16px, 4vh, 40px);
}
.lb-img {
  display: block;
  max-width: min(92vw, 1680px);
  max-height: calc(100vh - 120px);
  max-height: calc(100dvh - 120px);
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .6);
  opacity: 0;
  transform: scale(.975);
  transition: opacity .35s ease, transform .6s cubic-bezier(.22, 1, .36, 1);
}
.yt-lightbox.is-ready .lb-img { opacity: 1; transform: none; }
.lb-nav {
  position: absolute;
  top: 50%;
  width: 52px;
  height: 52px;
  margin-top: -26px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(10, 14, 22, .6);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  transition: background .25s, border-color .25s;
}
.lb-nav:hover { background: rgba(59, 130, 246, .35); border-color: rgba(127, 178, 255, .6); }
.lb-prev { left: 18px; }
.lb-next { right: 18px; }
.yt-lightbox.is-single .lb-nav { display: none; }
body.lb-open { overflow: hidden; }
@keyframes lbIn { from { opacity: 0; } to { opacity: 1; } }

/* ==========================================================================
   ABOUT
   ========================================================================== */

/* ---------- hero ---------- */
.ab-hero {
  position: relative;
  z-index: 2;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(32px, 5.5vh, 60px);
  padding: calc(78px + 3vh) var(--pad) 72px;
  overflow: hidden;
}
.ab-hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.ab-glow { position: absolute; border-radius: 50%; }
.ab-glow-1 {
  width: 62vw;
  height: 62vw;
  right: -16vw;
  top: -24vw;
  background: radial-gradient(circle, rgba(59, 130, 246, .32), rgba(59, 130, 246, 0) 62%);
  animation: abDrift 18s ease-in-out infinite alternate;
}
.ab-glow-2 {
  width: 48vw;
  height: 48vw;
  left: -18vw;
  bottom: -26vw;
  background: radial-gradient(circle, rgba(127, 233, 255, .16), rgba(127, 233, 255, 0) 62%);
  animation: abDrift 22s ease-in-out infinite alternate-reverse;
}
.ab-gridlines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(ellipse 70% 62% at 62% 42%, #000 18%, transparent 76%);
  mask-image: radial-gradient(ellipse 70% 62% at 62% 42%, #000 18%, transparent 76%);
}
@keyframes abDrift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-4vw, 3vw, 0) scale(1.08); }
}

.ab-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
  gap: clamp(36px, 5vw, 88px);
  align-items: center;
  width: 100%;
}
.ab-crumb { margin-bottom: 30px; }
.ab-crumb a { color: inherit; text-decoration: none; }

.ab-h1 {
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, min(4.7vw, 8.4vh), 4.9rem);
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--type-ink, #f4f6fa);
}
.ab-h1 .ln { display: block; overflow: hidden; padding: .02em 0 .1em; margin-bottom: -.06em; }
.ab-h1 .ln-in {
  display: inline-block;
  transform: translate3d(0, 112%, 0);
  animation: abLineUp 1.25s cubic-bezier(.16, 1, .3, 1) forwards;
  animation-delay: calc(.18s + var(--d, 0) * .11s);
}
.ab-h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #a9cbff 0%, #7fe9ff 42%, #4d8dff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root[data-lang="zh"] .ab-h1 {
  font-family: var(--font-zh);
  font-weight: 900;
  font-size: clamp(2.4rem, min(4.4vw, 8vh), 4.4rem);
  line-height: 1.14;
  letter-spacing: .01em;
}
.ab-anim {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  animation: abFadeUp 1.1s cubic-bezier(.16, 1, .3, 1) forwards;
  animation-delay: calc(.18s + var(--d, 0) * .11s);
}
.ab-lead {
  max-width: 540px;
  margin: 0 0 36px;
  font-size: var(--prem-type-lead, 1.15rem);
  line-height: 1.8;
  color: #aeb7c8;
}
.ab-actions { display: flex; flex-wrap: wrap; gap: 14px; }
@keyframes abLineUp { to { transform: none; } }
@keyframes abFadeUp { to { opacity: 1; transform: none; } }

.ab-hero-visual {
  position: relative;
  aspect-ratio: 1.18;
  max-height: calc(100vh - 290px);
  max-height: calc(100svh - 290px);
  min-height: 340px;
  justify-self: center;
  width: 100%;
  transform: perspective(1400px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transform-style: preserve-3d;
  transition: transform .9s cubic-bezier(.22, 1, .36, 1);
}
.ab-frame {
  position: absolute;
  margin: 0;
  overflow: hidden;
  background: #0b1018;
  border-radius: 24px;
  box-shadow: 0 50px 100px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 255, 255, .08);
}
.ab-frame-main {
  inset: 0 0 13% 9%;
  clip-path: inset(12% 12% 12% 12% round 24px);
  animation: abClip 1.6s cubic-bezier(.16, 1, .3, 1) .2s forwards;
}
.ab-frame-sub {
  left: 0;
  bottom: 0;
  width: 46%;
  aspect-ratio: 1.45;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, .16);
  clip-path: inset(50% 50% 50% 50% round 18px);
  animation: abClipSub 1.3s cubic-bezier(.16, 1, .3, 1) .8s forwards;
}
.ab-frame-move {
  position: absolute;
  inset: -8% -2%;
  transform: translate3d(0, var(--py, 0px), 0);
  will-change: transform;
}
.ab-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.16);
  animation: abKen 2.6s cubic-bezier(.16, 1, .3, 1) .2s forwards;
}
.ab-frame-main::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 9, 13, 0) 50%, rgba(7, 9, 13, .55) 100%);
  pointer-events: none;
}
.ab-frame figcaption {
  position: absolute;
  z-index: 2;
  right: 18px;
  bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(7, 9, 13, .5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, .14);
  font-size: 12px;
  color: #dfe6f3;
}
.ab-frame figcaption .mono { color: #7fe9ff; letter-spacing: .12em; font-size: 11px; }
.ab-badge {
  position: absolute;
  right: -3%;
  top: 8%;
  padding: 16px 22px 14px;
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(20, 30, 48, .84), rgba(10, 14, 22, .74));
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  border: 1px solid rgba(127, 178, 255, .3);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45), 0 0 40px rgba(59, 130, 246, .2);
  opacity: 0;
  transform: translate3d(0, 20px, 60px) scale(.92);
  animation: abPop 1.1s cubic-bezier(.16, 1, .3, 1) 1.15s forwards;
}
.ab-badge b {
  display: block;
  font: 700 36px/1 var(--font-display);
  letter-spacing: -.02em;
  background: linear-gradient(100deg, #fff 20%, #9cc4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ab-badge span {
  display: block;
  margin-top: 8px;
  font: 500 11px/1.3 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #9fb4d6;
}
.ab-orbit {
  position: absolute;
  width: 34%;
  aspect-ratio: 1;
  left: -9%;
  top: -7%;
  border-radius: 50%;
  border: 1px dashed rgba(127, 178, 255, .28);
  animation: pgSpin 46s linear infinite;
  pointer-events: none;
}
.ab-orbit::after {
  content: '';
  position: absolute;
  top: 50%;
  left: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7fe9ff;
  box-shadow: 0 0 16px #7fe9ff;
}
@keyframes abClip { to { clip-path: inset(0 0 0 0 round 24px); } }
@keyframes abClipSub { to { clip-path: inset(0 0 0 0 round 18px); } }
@keyframes abKen { to { transform: scale(1.03); } }
@keyframes abPop { to { opacity: 1; transform: translate3d(0, 0, 60px); } }

.ab-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  overflow: hidden;
}
.ab-facts.pg-glass {
  background: linear-gradient(165deg, rgba(16, 23, 36, .78), rgba(8, 12, 20, .66));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
}
.ab-facts li { padding: 22px 26px; border-left: 1px solid rgba(255, 255, 255, .08); }
.ab-facts li:first-child { border-left: 0; }
.ab-facts b {
  display: block;
  font: 700 clamp(22px, 2.1vw, 30px)/1 var(--font-display);
  letter-spacing: -.01em;
  color: #f4f7fc;
}
.ab-facts span { display: block; margin-top: 9px; font-size: 13px; line-height: 1.45; color: #8f9ab0; }
.ab-facts.in > * { animation-delay: calc(.95s + var(--i, 0) * 85ms); }

.ab-scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  width: 24px;
  height: 38px;
  margin-left: -12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .24);
  opacity: 0;
  animation: abFadeUp 1s ease 1.8s forwards;
}
.ab-scroll span {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 3px;
  height: 8px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: #7fb2ff;
  animation: abScrollDot 1.8s ease-in-out infinite;
}
@keyframes abScrollDot {
  0% { transform: translateY(0); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- profile ---------- */
.ab-profile-grid {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.ab-profile-aside { position: sticky; top: 120px; }
.ab-quote {
  position: relative;
  margin: 38px 0 0;
  padding: 24px 0 4px 28px;
  border-left: 1px solid rgba(127, 178, 255, .38);
  font: 500 clamp(18px, 1.55vw, 22px)/1.65 var(--font-body);
  color: #dbe3f1;
}
.ab-quote::before {
  content: '\201C';
  position: absolute;
  left: 20px;
  top: -30px;
  font: 700 80px/1 var(--font-display);
  color: rgba(127, 178, 255, .4);
}
.ab-profile-body > p {
  margin: 0 0 22px;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--type-body, #9aa3b5);
}
.ab-profile-body strong { color: #eaf0fa; font-weight: 600; }
.ab-profile-body > p.ab-intro {
  margin-bottom: 32px;
  font-size: clamp(20px, 1.85vw, 26px);
  line-height: 1.62;
  font-weight: 500;
  letter-spacing: -.005em;
  color: #e9eef7;
}
.ab-info { margin: 44px 0 0; padding: 6px 28px; }
.ab-info > div {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, .07);
}
.ab-info > div:first-child { border-top: 0; }
.ab-info dt {
  padding-top: 2px;
  font: 500 11.5px/1.6 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #7f8ba3;
}
.ab-info dd { margin: 0; font-size: 15px; line-height: 1.6; color: #e3e9f4; }

/* ---------- numbers ---------- */
body.page-sub section.ab-numbers { padding-top: clamp(64px, 8vw, 104px); padding-bottom: clamp(64px, 8vw, 104px); }
.ab-num-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
.ab-num-grid li { padding: 6px 22px; border-left: 1px solid rgba(255, 255, 255, .08); }
.ab-num-grid li:first-child { padding-left: 0; border-left: 0; }
.ab-num-grid b {
  display: block;
  font: 700 clamp(38px, 4.1vw, 60px)/1 var(--font-display);
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #fff 15%, #8fb8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ab-num-grid li > span { display: block; max-width: 17ch; margin-top: 14px; font-size: 13.5px; line-height: 1.5; color: #8f9ab0; }

/* ---------- timeline ---------- */
.tl {
  --p: 0;
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
}
.tl-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 88px;
  height: 1px;
  background: rgba(255, 255, 255, .1);
}
.tl-line span {
  position: absolute;
  inset: 0;
  transform-origin: left center;
  transform: scaleX(var(--p));
  background: linear-gradient(90deg, #3b82f6, #7fe9ff);
  box-shadow: 0 0 14px rgba(127, 233, 255, .6);
}
.tl-node {
  --a: clamp(0, calc((var(--p) * 4.3 - var(--k)) * 2.2), 1);
  position: relative;
  padding-top: 120px;
  opacity: calc(.28 + var(--a) * .72);
  transform: translate3d(0, calc((1 - var(--a)) * 16px), 0);
}
.tl-year {
  position: absolute;
  top: 0;
  left: 0;
  font: 700 clamp(46px, 5vw, 74px)/1 var(--font-display);
  letter-spacing: -.035em;
  color: rgba(143, 188, 255, calc(var(--a) * .16));
  -webkit-text-stroke: 1px rgba(127, 178, 255, .55);
}
.tl-dot {
  position: absolute;
  top: 81px;
  left: 0;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #0a0f18;
  border: 1px solid rgba(127, 178, 255, .55);
}
.tl-dot::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: #7fe9ff;
  box-shadow: 0 0 14px #7fe9ff;
  opacity: var(--a);
  transform: scale(calc(.3 + var(--a) * .7));
}
.tl-node h3 { margin: 0 0 10px; font: 600 20px/1.3 var(--font-ui); color: #eef3fb; }
.tl-node p { margin: 0; font-size: 14.5px; line-height: 1.75; color: #939db2; }

/* ---------- pillars ---------- */
.ab-pillar-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.ab-pillar {
  position: relative;
  overflow: hidden;
  padding: 32px 26px 30px;
  border-radius: 20px;
  background: linear-gradient(165deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .014));
  border: 1px solid rgba(255, 255, 255, .09);
  transition: transform .6s cubic-bezier(.22, 1, .36, 1), border-color .4s ease;
}
.ab-pillar::before,
.ab-cert::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(127, 178, 255, .16), transparent 62%);
  opacity: 0;
  transition: opacity .45s ease;
  pointer-events: none;
}
.ab-pillar:hover { transform: translateY(-6px); border-color: rgba(127, 178, 255, .34); }
.ab-pillar:hover::before,
.ab-cert:hover::before { opacity: 1; }
.ab-pillar-no { position: absolute; top: 24px; right: 24px; font-size: 12px; letter-spacing: .14em; color: rgba(127, 178, 255, .6); }
.ab-ico {
  width: 46px;
  height: 46px;
  margin-bottom: 28px;
  fill: none;
  stroke: #8fc0ff;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ab-pillar h3 { margin: 0 0 12px; font: 600 19px/1.3 var(--font-ui); color: #eef3fb; }
.ab-pillar p { margin: 0; font-size: 14.5px; line-height: 1.75; color: #939db2; }

/* ---------- products bento ---------- */
.ab-bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: clamp(250px, 25vw, 350px);
  gap: 16px;
}
.ab-tile {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 20px;
  background: #0d1119;
  border: 1px solid rgba(255, 255, 255, .08);
  text-decoration: none;
  transition: border-color .4s ease, box-shadow .5s ease;
}
.ab-tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s cubic-bezier(.22, 1, .36, 1);
}
.ab-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 9, 13, 0) 55%, rgba(7, 9, 13, .78) 100%);
  pointer-events: none;
}
.ab-tile-wide {
  grid-column: span 2;
  background: linear-gradient(160deg, #f7f8fa 0%, #e6e9ef 100%);
}
.ab-tile-wide img { object-fit: contain; padding: 18px 26px 58px; mix-blend-mode: multiply; }
.ab-tile-wide::after { background: linear-gradient(180deg, rgba(230, 233, 239, 0) 70%, rgba(214, 219, 228, .9) 100%); }
.ab-tile-cap {
  position: absolute;
  z-index: 2;
  left: 22px;
  right: 22px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font: 600 17px/1.3 var(--font-ui);
  color: #f2f6fc;
  transform: translate3d(0, 6px, 0);
  transition: transform .6s cubic-bezier(.22, 1, .36, 1);
}
.ab-tile-cap small { font-size: 11px; font-weight: 500; letter-spacing: .16em; color: #7fe9ff; }
.ab-tile-wide .ab-tile-cap { color: #0e1624; }
.ab-tile-wide .ab-tile-cap small { color: #1e4fa3; }
.ab-tile:hover { border-color: rgba(127, 178, 255, .4); box-shadow: 0 30px 70px rgba(0, 0, 0, .45); }
.ab-tile:hover img { transform: scale(1.06); }
.ab-tile:hover .ab-tile-cap { transform: none; }

.ab-lines {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}
.ab-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px 11px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .035);
  font: 600 14px/1 var(--font-ui);
  color: #dfe6f2;
  text-decoration: none;
  transition: border-color .3s, background .3s, transform .3s;
}
.ab-chip i {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font: 500 11px/1 var(--font-mono);
  font-style: normal;
  color: #7fe9ff;
  background: rgba(127, 233, 255, .1);
}
.ab-chip:hover { border-color: rgba(127, 178, 255, .5); background: rgba(59, 130, 246, .14); transform: translateY(-2px); }
.ab-lines-cta { margin-left: auto; }

/* ---------- applications marquee ---------- */
body.page-sub section.ab-apps { padding-bottom: clamp(80px, 9vw, 130px); }
.ab-apps .pg-head { margin-bottom: clamp(36px, 5vw, 56px); }
.ab-marquee {
  display: grid;
  gap: 16px;
  margin-inline: calc(-1 * var(--pad));
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}
.ab-marquee-row { display: flex; width: max-content; animation: abMarquee 52s linear infinite; }
.ab-marquee-rev { animation-direction: reverse; animation-duration: 60s; }
.ab-marquee:hover .ab-marquee-row { animation-play-state: paused; }
.ab-marquee-track { display: flex; gap: 16px; margin: 0; padding: 0 16px 0 0; list-style: none; }
.ab-marquee-track li {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 28px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .03);
  font: 600 clamp(18px, 1.9vw, 26px)/1 var(--font-ui);
  letter-spacing: -.01em;
  color: #e3e9f3;
  white-space: nowrap;
}
.ab-marquee-track li::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #7fe9ff;
  box-shadow: 0 0 12px rgba(127, 233, 255, .8);
}
.ab-marquee-rev .ab-marquee-track li {
  background: transparent;
  color: transparent;
  -webkit-text-stroke: 1px rgba(210, 225, 250, .7);
}
.ab-marquee-rev .ab-marquee-track li::before { background: #7fb2ff; box-shadow: 0 0 12px rgba(127, 178, 255, .8); }
:root[data-lang="zh"] .ab-marquee-rev .ab-marquee-track li { color: #c9d4e6; -webkit-text-stroke: 0; }
@keyframes abMarquee { to { transform: translate3d(-50%, 0, 0); } }

/* ---------- factory gallery ---------- */
.ab-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: clamp(170px, 17vw, 240px);
  grid-auto-flow: dense;
  gap: 14px;
}
.ab-shot {
  position: relative;
  display: block;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 18px;
  background: #0d1119;
  cursor: zoom-in;
  text-align: left;
  transition: border-color .4s ease, box-shadow .5s ease;
}
.ab-shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s cubic-bezier(.22, 1, .36, 1), filter .6s ease;
  filter: saturate(.92);
}
.ab-shot::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 9, 13, 0) 55%, rgba(7, 9, 13, .72) 100%);
  pointer-events: none;
}
.ab-shot-cap {
  position: absolute;
  z-index: 2;
  left: 18px;
  bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font: 600 14px/1.2 var(--font-ui);
  color: #eef3fb;
}
.ab-shot-cap small { font-size: 11px; font-weight: 500; letter-spacing: .14em; color: #7fe9ff; }
.ab-shot:hover { border-color: rgba(127, 178, 255, .4); box-shadow: 0 26px 60px rgba(0, 0, 0, .45); }
.ab-shot:hover img { transform: scale(1.06); filter: saturate(1.05); }
.ab-shot:focus-visible { outline: 2px solid #7fb2ff; outline-offset: 3px; }
.ab-shot-a { grid-column: span 2; grid-row: span 2; }
.ab-shot-b { grid-column: span 2; }
.ab-shot-e { grid-column: span 2; }

/* ---------- quality ---------- */
.ab-cert-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.ab-cert {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(165deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .014));
  border: 1px solid rgba(255, 255, 255, .09);
  transition: border-color .4s ease, transform .6s cubic-bezier(.22, 1, .36, 1);
}
.ab-cert:hover { border-color: rgba(127, 178, 255, .32); transform: translateY(-4px); }
.ab-cert-img {
  position: relative;
  display: block;
  width: 100%;
  height: 280px;
  padding: 26px;
  border: 0;
  overflow: hidden;
  cursor: zoom-in;
  background: radial-gradient(ellipse at 50% 35%, rgba(127, 178, 255, .16), transparent 70%), rgba(255, 255, 255, .02);
}
.ab-cert-img img {
  display: block;
  width: auto;
  height: 100%;
  margin: 0 auto;
  border-radius: 4px;
  box-shadow: 0 22px 46px rgba(0, 0, 0, .5);
  transform: rotate(-2.5deg);
  transition: transform .7s cubic-bezier(.22, 1, .36, 1);
}
.ab-cert:hover .ab-cert-img img { transform: rotate(0deg) scale(1.04); }
.ab-cert-zoom {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(7, 9, 13, .6);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #cfe0ff;
  font-size: 14px;
}
.ab-ul-mark {
  display: grid;
  place-content: center;
  gap: 14px;
  height: 280px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 40%, rgba(127, 233, 255, .12), transparent 70%), rgba(255, 255, 255, .02);
}
.ab-ul-mark span {
  display: grid;
  place-items: center;
  width: 128px;
  height: 128px;
  margin: 0 auto;
  border-radius: 50%;
  border: 3px solid #e9eef7;
  font: italic 800 56px/1 var(--font-display);
  color: #e9eef7;
  box-shadow: 0 0 40px rgba(127, 233, 255, .18);
}
.ab-ul-mark small { font: 500 11px/1 var(--font-mono); letter-spacing: .22em; color: #8f9ab0; }
.ab-cert-body { display: flex; flex: 1; flex-direction: column; gap: 8px; padding: 24px 26px 26px; }
.ab-kicker,
.ab-cert-body .ab-kicker {
  margin: 0;
  font: 500 11px/1.4 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(127, 178, 255, .85);
}
.ab-cert-body h3 { margin: 2px 0 0; font: 700 25px/1.2 var(--font-display); color: #f2f5fb; }
.ab-cert-body code { font: 500 13px/1.3 var(--font-mono); letter-spacing: .06em; color: #9fd8ff; }
.ab-cert-body p { margin: 6px 0 0; font-size: 14.5px; line-height: 1.7; color: #9aa4b8; }
.ab-cert-body small { font-size: 12.5px; line-height: 1.6; color: #7c879c; }
.ab-link { margin-top: auto; padding-top: 12px; font-size: 13.5px; font-weight: 600; color: #9cc4ff; text-decoration: none; }
.ab-link:hover { color: #cfe2ff; }

.ab-qc { margin-top: 22px; padding: clamp(26px, 3vw, 42px); }
.ab-qc-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px 40px;
  margin-bottom: 38px;
}
.ab-qc-head h3 { margin: 12px 0 0; font: 700 clamp(22px, 2.3vw, 32px)/1.2 var(--font-display); color: #f2f5fb; }
:root[data-lang="zh"] .ab-qc-head h3 { font-family: var(--font-zh); }
.ab-qc-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.ab-qc-flow {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
}
.ab-qc-flow::before {
  content: '';
  position: absolute;
  left: 5%;
  right: 5%;
  top: 18px;
  height: 1px;
  background: linear-gradient(90deg, rgba(59, 130, 246, .25), rgba(127, 233, 255, .7), rgba(59, 130, 246, .25));
}
.ab-qc-flow li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 0 4px;
  text-align: center;
}
.ab-qc-flow i {
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  border-radius: 50%;
  font: 500 12px/1 var(--font-mono);
  font-style: normal;
  color: #d4e5ff;
  background: #0b1220;
  border: 1px solid rgba(127, 178, 255, .5);
  box-shadow: 0 0 0 5px rgba(12, 18, 30, .92);
  transition: background .3s, color .3s;
}
.ab-qc-flow li:hover i { background: #3b82f6; color: #fff; }
.ab-qc-flow span { font-size: 12.5px; line-height: 1.45; color: #aab4c7; }

/* ---------- about responsive ---------- */
@media (max-width: 1100px) {
  .ab-facts li { padding: 20px 18px; }
  .ab-pillar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ab-num-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 40px; }
  .ab-num-grid li:nth-child(4) { padding-left: 0; border-left: 0; }
}
@media (max-width: 900px) {
  .pg-head-split { grid-template-columns: 1fr; }
  .pg-head-split .pg-lead { justify-self: start; }
  .ab-hero { padding-top: 104px; padding-bottom: 64px; min-height: 0; }
  .ab-hero-grid { grid-template-columns: 1fr; }
  .ab-hero-visual { aspect-ratio: 1.2; transform: none !important; max-width: 640px; }
  .ab-scroll { display: none; }
  .ab-facts { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .ab-facts li { grid-column: span 2; border-top: 1px solid rgba(255, 255, 255, .08); }
  .ab-facts li:nth-child(-n+3) { border-top: 0; }
  .ab-facts li:nth-child(4),
  .ab-facts li:nth-child(5) { grid-column: span 3; }
  .ab-facts li:nth-child(4) { border-left: 0; }
  .ab-profile-grid { grid-template-columns: 1fr; }
  .ab-profile-aside { position: static; }
  .ab-cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ab-cert-ul { grid-column: span 2; }
  .ab-qc-flow { grid-template-columns: repeat(5, minmax(0, 1fr)); row-gap: 26px; }
  .ab-qc-flow::before { display: none; }
}
@media (max-width: 760px) {
  .tl { grid-template-columns: 1fr; gap: 34px; padding-left: 34px; }
  .tl-line { left: 7px; right: auto; top: 6px; bottom: 6px; width: 1px; height: auto; }
  .tl-line span { transform-origin: center top; transform: scaleY(var(--p)); }
  .tl-node { padding-top: 0; }
  .tl-year { position: static; display: block; margin-bottom: 12px; font-size: 44px; }
  .tl-dot { top: 12px; left: -34px; }
  .ab-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 210px; }
  .ab-tile-wide img { padding: 14px 14px 56px; }
  .ab-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 160px; }
  .ab-shot-a { grid-row: span 1; }
  .ab-shot-g { grid-column: span 2; }
  .ab-lines-cta { margin-left: 0; }
}
@media (max-width: 640px) {
  .ab-h1 { font-size: clamp(2.5rem, 11vw, 3.4rem); }
  :root[data-lang="zh"] .ab-h1 { font-size: clamp(2.2rem, 9.6vw, 3rem); }
  .ab-actions .btn { flex: 1 1 auto; justify-content: center; }
  .ab-badge { right: 4%; top: 5%; padding: 12px 16px 10px; }
  .ab-badge b { font-size: 26px; }
  .ab-facts b { font-size: 21px; }
  .ab-facts li { padding: 16px 14px; }
  .ab-num-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ab-num-grid li,
  .ab-num-grid li:nth-child(4) { padding-left: 18px; border-left: 1px solid rgba(255, 255, 255, .08); }
  .ab-num-grid li:nth-child(odd) { padding-left: 0; border-left: 0; }
  .ab-pillar-grid { grid-template-columns: 1fr; }
  .ab-info { padding: 4px 18px; }
  .ab-info > div { grid-template-columns: 1fr; gap: 4px; }
  .ab-cert-grid { grid-template-columns: 1fr; }
  .ab-cert-ul { grid-column: auto; }
  .ab-qc-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ab-qc-flow li { flex-direction: row; text-align: left; gap: 12px; }
  .ab-marquee-track li { padding: 14px 20px; }
  .pg-cta-actions .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .ab-h1 .ln-in,
  .ab-anim,
  .ab-frame-main,
  .ab-frame-sub,
  .ab-frame img,
  .ab-badge,
  .ab-scroll {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
  .ab-badge { transform: translateZ(60px) !important; }
  .ab-glow,
  .ab-orbit,
  .pg-cta-glow,
  .ab-marquee-row { animation: none !important; }
  [data-stagger] > * { opacity: 1 !important; animation: none !important; }
  .pg-main [data-reveal] { opacity: 1; transform: none; transition: none; }
}