/* === Antigravity Full-Site Defensive Guardrails === */
svg:not([width]):not(.svg-defs) { max-width: 100%; max-height: 100%; }
.svg-defs { display: none !important; position: absolute; width: 0; height: 0; }
.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { position: fixed; left: 16px; top: 16px; width: auto; height: auto; z-index: 9999; }

:root {
  --navy-950: #03131e;
  --navy-900: #061b29;
  --navy-850: #082334;
  --navy-800: #0b2b3e;
  --navy-700: #133d52;
  --paper: #061925;
  --paper-2: #0a2230;
  --white: #fff;
  --ink: #e8e0d4;
  --muted: #b5aa9c;
  --muted-light: #c9c0b4;
  --line: rgba(196, 165, 116, .28);
  --line-dark: rgba(176, 138, 91, .22);
  --cyan: #b08a5b;
  --cyan-2: #c4a574;
  --teal: #8a6a42;
  --copper: #b08a5b;
  --copper-soft: #d4b896;
  --danger: #ef5743;
  --success: #38c99e;
  --shadow: 0 28px 80px rgba(3, 20, 31, .18);
  --max: 1440px;
  --section-pad: clamp(82px, 10vw, 152px);
  --side: clamp(24px, 6vw, 96px);
}

/* Silicon IP visual system — typography, surface and interaction refinement */
:root {
  --sans-zh: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei UI", "Microsoft JhengHei", sans-serif;
  --serif-zh: "Songti TC", "Noto Serif TC", "PMingLiU", serif;
  --radius-sm: 2px;
  --radius-md: 8px;
  --ease-premium: cubic-bezier(.2,.7,.2,1);
  --font-sans: var(--sans-zh);
  --font-display: var(--sans-zh);
  --display: var(--font-display);
  --body: var(--font-sans);
  --type-hero: clamp(42px, 4.35vw, 62px);
  --type-section: clamp(30px, 3vw, 44px);
  --type-chapter: clamp(36px, 3.9vw, 54px);
  --type-hero-mobile: clamp(35px, 10vw, 43px);
  --type-section-mobile: clamp(27px, 7.4vw, 34px);
  --type-chapter-mobile: clamp(30px, 8vw, 37px);
}
body { font-family: var(--sans-zh); letter-spacing: .012em; }
h1,h2,h3,p { text-wrap: pretty; }
.hero h1,.thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.closing-section h2 {
  font-family: var(--sans-zh);
  font-weight: 650;
  letter-spacing: -.055em;
}
.hero h1 em,h2 em,.chapter-copy h2 em {
  font-family: var(--serif-zh);
  font-style: normal;
  font-weight: 500;
  letter-spacing: -.065em;
}
.hero-lede,.section-lede,.section-heading > p,.thesis-copy,.architecture-intro > p:last-child,.evidence-title > p:last-child,.research-launch-copy > p:not(.eyebrow) {
  line-height: 1.95;
  letter-spacing: .018em;
}
.eyebrow,.section-kicker { letter-spacing: .2em; }
.button { border-radius: var(--radius-sm); transition: transform .25s var(--ease-premium),box-shadow .25s var(--ease-premium),background .25s; }
.button.primary { box-shadow: 0 12px 36px rgba(176,138,91,.18); }
.button.primary:hover { box-shadow: 0 18px 44px rgba(176,138,91,.28); }

.immersive-chapter {
  background-image: linear-gradient(90deg,rgba(1,12,18,.91) 0%,rgba(1,12,18,.4) 42%,rgba(1,12,18,.64) 100%),url("assets/silicon-ip-panorama-v2.webp");
}
.immersive-chapter::after { opacity: .08; background-size: 64px 64px; }
.immersive-wafer { background-position: 22% center; }
.immersive-probe { background-position: 57% center; }
.immersive-silicon { background-position: 84% center; }
.chapter-copy h2 { font-family: var(--sans-zh); font-weight: 620; }
.chapter-copy h2 em { color: var(--cyan-2); }

.section { overflow: clip; }
.section-heading,.thesis-grid,.comparison-head,.evidence-title,.learning-head { position: relative; }
.section-heading::after,.comparison-head::after,.learning-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -28px;
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg,var(--cyan),var(--copper));
}
.thesis-section,.attack-section,.lifecycle-section,.evidence-section,.sources-section { border-top: 1px solid rgba(9,34,53,.06); }
.thesis-principles article,.evidence-numbers article,.phase-detail,.case-note,.source-list a { border-radius: var(--radius-md); }
.thesis-principles article { transition: transform .35s var(--ease-premium),box-shadow .35s var(--ease-premium); }
.thesis-principles article:hover { transform: translateY(-7px); box-shadow: 0 30px 72px rgba(3,20,31,.13); }
.thesis-principles h3,.phase-detail h3,.arch-detail h3,.app-card h3,.article-card h3 { font-family: var(--sans-zh); font-weight: 650; letter-spacing: -.03em; }

.power-lab { background: radial-gradient(circle at 72% 46%,rgba(176,138,91,.09),transparent 30%),linear-gradient(145deg,#071d2a,#03131e); }
.silicon-stage { border-radius: var(--radius-md); box-shadow: inset 0 0 90px rgba(176,138,91,.05),0 30px 100px rgba(0,0,0,.28); }
.chip-frame { border-radius: 5px; }
.state-switch,.state-explanation { border-radius: var(--radius-sm); }

.attack-journey { border-radius: var(--radius-md); }
.journey-icon { box-shadow: 0 14px 36px rgba(3,20,31,.18); }
.case-note { border-left-width: 4px; }

.architecture-section { background: radial-gradient(circle at 74% 36%,rgba(176,138,91,.08),transparent 31%),#03131e; }
.architecture-canvas { padding: clamp(18px,3vw,38px); background: rgba(7,30,43,.55); border: 1px solid rgba(196,165,116,.1); border-radius: var(--radius-md); box-shadow: 0 30px 90px rgba(0,0,0,.24); }
.arch-node,.arch-detail,.architecture-footer { border-radius: 4px; }
.arch-node { transition: transform .3s var(--ease-premium),border-color .3s,background .3s; }
.arch-detail { box-shadow: inset 0 1px rgba(255,255,255,.04); }

.lifecycle-track { border-radius: var(--radius-md) var(--radius-md) 0 0; }
.phase-detail { border-radius: 0 0 var(--radius-md) var(--radius-md); }
.phase > span { box-shadow: 0 10px 28px rgba(3,20,31,.12); }

.comparison-side,.product-matrix,.comparison-conclusion { border-radius: var(--radius-md); overflow: hidden; }
.comparison-side { box-shadow: 0 30px 80px rgba(0,0,0,.2); }
.comparison-side header { background: rgba(255,255,255,.035); }
.state-hero { background: linear-gradient(135deg,rgba(176,138,91,.07),transparent); }
.versus { border-radius: 999px; aspect-ratio: 1; align-self: center; display: grid; align-content: center; padding: 18px; border: 1px solid rgba(196,165,116,.2); background: rgba(3,19,30,.55); }

.evidence-numbers { gap: 18px; border: 0; }
.evidence-numbers article { border: 0; transition: transform .3s var(--ease-premium); }
.evidence-numbers article:hover { transform: translateY(-6px); }
.evidence-ribbon,.node-map { border-radius: var(--radius-md); }
.wafer-visual { border-radius: 50%; box-shadow: inset 0 0 70px rgba(176,138,91,.1),0 24px 70px rgba(3,20,31,.12); }

.application-grid { gap: 16px; background: transparent; }
.app-card { border-radius: var(--radius-md); transition: transform .35s var(--ease-premium),border-color .35s,box-shadow .35s; }
.app-card h3 { line-height: 1.35; }
.accountability-section { background: radial-gradient(circle at 50% 20%,rgba(176,138,91,.1),transparent 28%),linear-gradient(180deg,#082334,#03131e); }
.ownership-flow div { min-height: 150px; padding: 22px 16px; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }

.learning-paths,.article-card,.research-equation { border-radius: var(--radius-md); }
.article-grid { gap: 14px; }
.article-card { transition: transform .3s var(--ease-premium),border-color .3s,background .3s,box-shadow .3s; }
.article-card:hover { transform: translateY(-7px); box-shadow: 0 30px 70px rgba(0,0,0,.25); }
.filters button,.search-box { border-radius: 999px; }
.source-list a { transition: transform .25s var(--ease-premium),border-color .25s,background .25s; }
.closing-section h2 { max-width: 1100px; }

@media (max-width: 920px) {
  .architecture-canvas { padding: 18px; }
  .ownership-flow div { width: min(100%,320px); }
  .versus { width: 180px; margin: 18px auto; }
}
@media (max-width: 620px) {
  body { line-height: 1.72; }
  .hero h1 { font-size: clamp(44px,13.6vw,62px); line-height: 1.08; }
  .hero h1 em { display: block; margin-top: 6px; font-size: .9em; line-height: 1.16; }
  .hero-lede { font-size: 16px; line-height: 1.88; }
  .thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.closing-section h2 { font-size: clamp(35px,10.5vw,47px); line-height: 1.18; letter-spacing: -.045em; }
  .immersive-chapter { background-size: auto 100%; }
  .immersive-wafer { background-position: 31% center; }
  .immersive-probe { background-position: 62% center; }
  .immersive-silicon { background-position: 88% center; }
  .chapter-copy h2 { font-size: 47px; line-height: 1.02; letter-spacing: -.045em; }
  .chapter-copy > span { line-height: 1.7; }
  .thesis-principles,.evidence-numbers,.application-grid { gap: 12px; }
  .thesis-principles article,.app-card,.article-card { padding: 30px 26px; }
  .architecture-canvas { margin-left: 0; margin-right: 0; padding: 14px; }
  .evidence-numbers strong { margin-top: 36px; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 56px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", "Microsoft JhengHei", "Noto Sans TC", Arial, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.light-mode { --paper: #061925; --paper-2: #0a2230; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
svg { display: block; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.reading-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 200; background: transparent; }
.reading-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--copper)); box-shadow: 0 0 12px var(--cyan); }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 48px;
  max-width: 1780px;
  margin: 0 auto;
  padding: 0 var(--side);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(3, 19, 30, .92);
  backdrop-filter: blur(16px) saturate(110%);
  transition: background .25s, min-height .25s;
}
.site-header.scrolled { min-height: 48px; background: rgba(3, 19, 30, .96); }
.brand { display: inline-flex; align-items: center; gap: 12px; justify-self: start; white-space: nowrap; flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 22px; height: 22px; color: var(--copper-soft); background: transparent; border: 1px solid var(--copper); border-radius: 4px; flex-shrink: 0; }
.brand-mark svg { width: 23px; height: 23px; stroke-width: 2; }
.brand-copy { display: grid; line-height: 1; white-space: nowrap; flex-shrink: 0; }
.brand-copy strong { font-size: 13px; letter-spacing: .08em; }
.brand-copy small { display: none; }
.brand-section { margin-left: 12px; padding-left: 22px; color: var(--cyan-2); border-left: 1px solid rgba(255,255,255,.22); font-size: 11px; font-weight: 700; letter-spacing: .14em; white-space: nowrap; flex-shrink: 0; }
.primary-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 36px); justify-self: center; white-space: nowrap; }
.primary-nav a { position: relative; padding: 14px 0; color: #c7d7df; font-size: 12px; font-weight: 700; letter-spacing: .08em; white-space: nowrap; }
.primary-nav a::after { content: ""; position: absolute; inset: auto 50% 15px; width: 0; height: 2px; background: var(--cyan); transition: .2s; }
.primary-nav a:hover, .primary-nav a.active { color: var(--white); }
.primary-nav a:hover::after, .primary-nav a.active::after { left: 0; right: 0; width: 100%; }
.header-actions { display: flex; gap: 10px; justify-self: end; }
.language-toggle { display: flex; align-items: center; gap: 6px; min-width: 72px; height: 42px; padding: 0 12px; color: #7895a3; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.04); cursor: pointer; font-size: 10px; letter-spacing: .06em; }
.language-toggle b { font-weight: 800; transition: color .2s; }
.language-toggle i { color: rgba(255,255,255,.2); font-style: normal; }
.language-toggle [data-lang-option="zh"] { color: var(--cyan-2); }
body[data-language="en"] .language-toggle [data-lang-option="zh"] { color: #7895a3; }
body[data-language="en"] .language-toggle [data-lang-option="en"] { color: var(--cyan-2); }
.header-button, .menu-button { width: 42px; height: 42px; padding: 0; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.05); cursor: pointer; }
.header-button { position: relative; border-radius: 50%; }
.header-button span { position: absolute; inset: 13px; border-radius: 50%; border: 1px solid var(--cyan-2); }
.header-button span:last-child { inset: 8px 18px; border-width: 0 1px 0 0; border-radius: 0; transform: rotate(35deg); }
.menu-button { display: none; place-items: center; color: var(--white); }
.menu-button i { display: block; width: 18px; height: 1px; margin: 5px auto; background: currentColor; }

.hero {
  position: relative;
  display: grid;
  min-height: min(960px, 100svh);
  overflow: hidden;
  color: var(--white);
  background: var(--navy-950);
}
.hero-media { position: absolute; inset: 0; background: linear-gradient(0deg,var(--navy-950) 0%,rgba(3,19,30,0) 24%),linear-gradient(90deg, rgba(3,19,30,.98) 0%, rgba(3,19,30,.9) 35%, rgba(3,19,30,.26) 67%, rgba(3,19,30,.18)), url("assets/secure-storage-hero-key.webp") center/cover no-repeat; transform: scale(1.02); animation: hero-push 18s ease-out forwards; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--navy-950), transparent 25%), radial-gradient(circle at 70% 48%, transparent 0 18%, rgba(3,19,30,.36) 62%); pointer-events: none; }
.hero-grid, .stage-grid { position: absolute; inset: 0; opacity: .1; background-image: linear-gradient(rgba(196,165,116,.38) 1px, transparent 1px), linear-gradient(90deg, rgba(196,165,116,.38) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, black, transparent 60%); }
.hero-content { position: relative; z-index: 2; align-self: center; width: min(790px, 61vw); margin: 80px 0 20px var(--side); padding: 50px 0; }
.eyebrow { display: flex; align-items: center; gap: 22px; margin: 0 0 22px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.eyebrow::before { content: ""; width: 38px; height: 2px; background: currentColor; }
.eyebrow.light { color: var(--cyan-2); }
.eyebrow b { color: #819ba9; font-weight: 600; }
.hero h1 { margin: 0; max-width: 840px; font-size: clamp(50px, 6.2vw, 92px); line-height: 1.05; letter-spacing: -.055em; }
.hero h1 em, h2 em { color: var(--cyan-2); font-family: Georgia, "Noto Serif TC", serif; font-weight: 400; }
.hero-lede { max-width: 680px; margin: 30px 0 0; color: #c6d9e1; font-size: clamp(17px, 1.5vw, 22px); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 52px; padding: 0 24px; border: 1px solid transparent; font-size: 12px; font-weight: 800; letter-spacing: .06em; transition: transform .2s, color .2s, background .2s, border-color .2s; }
.button svg { width: 22px; height: 22px; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: var(--navy-950); background: var(--cyan); }
.button.primary:hover { background: var(--cyan-2); }
.button.ghost { color: #dce9ee; border-color: rgba(255,255,255,.35); background: rgba(3,19,30,.15); }
.button.ghost:hover { border-color: var(--cyan-2); }
.hero-proof { display: flex; gap: clamp(20px, 4vw, 58px); margin-top: 58px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.15); }
.hero-proof div { display: grid; gap: 2px; }
.hero-proof strong { color: var(--white); font-size: 18px; }
.hero-proof span { color: #87a4b1; font-size: 10px; letter-spacing: .06em; }
.hero-caption { position: absolute; z-index: 3; right: var(--side); bottom: 100px; display: grid; gap: 4px; padding-left: 18px; border-left: 2px solid var(--cyan); text-align: right; }
.hero-caption span { color: var(--cyan-2); font-size: 10px; letter-spacing: .15em; }
.hero-caption b { color: #d9e5e9; font-size: 11px; letter-spacing: .08em; }
.scroll-cue { position: absolute; z-index: 3; left: var(--side); bottom: 30px; display: flex; align-items: center; gap: 15px; color: #7f9ba8; font-size: 9px; font-weight: 700; letter-spacing: .16em; }
.scroll-cue i { width: 72px; height: 1px; background: linear-gradient(90deg, var(--cyan), transparent); }

.signal-strip { display: flex; align-items: center; justify-content: center; gap: clamp(12px, 2.5vw, 36px); min-height: 88px; padding: 18px var(--side); color: #bcd0d8; background: var(--navy-950); border-top: 1px solid rgba(255,255,255,.08); }
.signal-strip span { display: flex; align-items: center; gap: 10px; font-size: 10px; font-weight: 800; letter-spacing: .12em; white-space: nowrap; }
.signal-strip svg { width: 24px; height: 24px; color: var(--cyan-2); }
.signal-strip i { width: 44px; height: 1px; background: linear-gradient(90deg, var(--cyan), var(--copper)); opacity: .45; }

.section { position: relative; padding: var(--section-pad) var(--side); }
.section > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section-index { position: absolute; top: 66px; left: var(--side); color: #bdd0d7; font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.section-kicker { margin-bottom: 36px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.thesis-grid { display: grid; grid-template-columns: 1.55fr .75fr; gap: clamp(60px, 9vw, 150px); align-items: end; }
.thesis-grid h2, .section-heading h2, .comparison-head h2, .evidence-title h2, .learning-head h2 { margin: 0; font-size: clamp(38px, 4.7vw, 70px); line-height: 1.13; letter-spacing: -.045em; }
.thesis-copy { padding-bottom: 8px; color: var(--muted); font-size: 17px; }
.text-link { display: inline-flex; align-items: center; gap: 12px; margin-top: 18px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .06em; }
.text-link svg { width: 22px; height: 22px; }
.thesis-principles { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 92px; border-block: 1px solid var(--line); }
.thesis-principles article { position: relative; min-height: 290px; padding: 42px clamp(24px, 3vw, 48px); border-right: 1px solid var(--line); }
.thesis-principles article:last-child { border: 0; }
.thesis-principles article > span { position: absolute; top: 22px; right: 24px; color: #9cb0ba; font-size: 10px; letter-spacing: .12em; }
.thesis-principles svg { width: 48px; height: 48px; color: var(--teal); }
.thesis-principles h3 { margin: 34px 0 12px; font-size: 24px; letter-spacing: -.025em; }
.thesis-principles p { margin: 0; color: var(--muted); }

.power-lab { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(50px, 7vw, 120px); align-items: center; min-height: 850px; color: var(--white); background: var(--navy-900); }
.power-copy, .silicon-stage { width: 100%; }
.power-copy h2 { margin: 0; font-size: clamp(44px, 5.3vw, 78px); line-height: 1.05; letter-spacing: -.05em; }
.section-lede { color: var(--muted-light); font-size: 17px; line-height: 1.8; }
.state-switch { display: inline-flex; margin-top: 30px; border: 1px solid rgba(255,255,255,.18); }
.state-switch button { display: flex; align-items: center; gap: 9px; padding: 12px 16px; color: #8fa8b4; border: 0; background: transparent; cursor: pointer; font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.state-switch button + button { border-left: 1px solid rgba(255,255,255,.18); }
.state-switch button.active { color: var(--navy-950); background: var(--cyan); }
.state-switch svg { width: 19px; height: 19px; }
.state-explanation { margin-top: 32px; padding: 25px 0 0 24px; border-top: 1px solid rgba(255,255,255,.14); border-left: 2px solid var(--cyan); }
.state-explanation span { color: var(--cyan-2); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.state-explanation h3 { margin: 8px 0 5px; font-size: 26px; }
.state-explanation p { margin: 0; color: var(--muted-light); }
.silicon-stage { position: relative; display: grid; place-items: center; min-height: 570px; overflow: hidden; background: radial-gradient(circle at 50% 50%, rgba(176,138,91,.12), transparent 55%), var(--navy-950); border: 1px solid rgba(196,165,116,.22); box-shadow: inset 0 0 70px rgba(176,138,91,.04); }
.silicon-stage::before, .silicon-stage::after { content: ""; position: absolute; width: 160px; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan)); }
.silicon-stage::before { left: 0; top: 28%; }
.silicon-stage::after { right: 0; bottom: 25%; transform: rotate(180deg); }
.chip-frame { position: relative; width: min(76%, 470px); aspect-ratio: 1.15; padding: 32px; border: 1px solid rgba(196,165,116,.56); background: linear-gradient(145deg, rgba(19,61,82,.64), rgba(3,19,30,.92)); box-shadow: 0 0 45px rgba(176,138,91,.13), inset 0 0 38px rgba(176,138,91,.06); }
.chip-frame::before, .chip-frame::after { content: ""; position: absolute; inset: -9px; border: 1px solid rgba(196,165,116,.14); pointer-events: none; }
.chip-frame::after { inset: -18px; border-color: rgba(196,165,116,.06); }
.chip-label { display: flex; justify-content: space-between; color: var(--cyan-2); font-size: 9px; letter-spacing: .12em; }
.chip-label b { color: var(--muted-light); }
.memory-array { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; width: 67%; margin: 36px auto 20px; }
.memory-array span { aspect-ratio: 1; border: 1px solid rgba(196,165,116,.22); background: linear-gradient(135deg, rgba(176,138,91,.08), rgba(176,138,91,.24)); box-shadow: inset 0 0 10px rgba(176,138,91,.13); }
.cipher-label, .key-presence { display: flex; align-items: center; gap: 12px; }
.cipher-label { margin-top: 20px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); }
.cipher-label svg, .key-presence svg { width: 32px; height: 32px; color: var(--cyan-2); }
.cipher-label span, .key-presence span { display: grid; line-height: 1.25; }
.cipher-label small, .key-presence small { color: var(--muted-light); font-size: 8px; letter-spacing: .11em; }
.cipher-label b, .key-presence b { font-size: 11px; letter-spacing: .08em; }
.key-presence { position: absolute; right: 30px; bottom: 28px; opacity: .45; }
.key-presence svg { filter: blur(.5px); }
.power-lab[data-state="on"] .key-presence { opacity: 1; animation: key-pulse 2s infinite; }
.power-lab[data-state="on"] .key-presence svg { color: var(--copper); filter: drop-shadow(0 0 12px rgba(255,139,44,.5)); }
.power-lab[data-state="on"] .memory-array span { animation: memory-glow 1.8s ease-in-out infinite alternate; }
.attack-probe { position: absolute; top: 8%; right: 5%; display: grid; justify-items: center; gap: 5px; color: var(--danger); font-size: 8px; font-weight: 800; letter-spacing: .1em; }
.attack-probe svg { width: 42px; height: 42px; }
.readout-result {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 24px;
  background: rgba(2, 14, 23, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: none;
  border-top: 1px solid rgba(196, 165, 116, 0.25);
  border-left: 4px solid var(--success);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  z-index: 10;
}
.readout-result small {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #7dd3fc;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.readout-result small::before {
  content: "●";
  color: var(--success);
  font-size: 11px;
}
.readout-result strong {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13.5px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.04em;
  text-align: right;
  line-height: 1.3;
}

.attack-section { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: clamp(50px, 8vw, 130px); align-items: end; }
.section-heading > p { margin: 0 0 8px; color: var(--muted); font-size: 17px; }
.attack-journey { display: grid; grid-template-columns: repeat(7, auto); align-items: center; margin-top: 80px; }
.attack-journey article { min-width: 0; }
.journey-icon { display: grid; place-items: center; width: 74px; height: 74px; margin-bottom: 28px; color: var(--white); background: var(--danger); border-radius: 50%; }
.journey-icon.copper { color: var(--navy-950); background: var(--copper); }
.journey-icon.teal { color: var(--navy-950); background: var(--cyan); }
.journey-icon svg { width: 34px; height: 34px; }
.attack-journey article > span { color: var(--danger); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.attack-journey h3 { margin: 10px 0 7px; font-size: 19px; }
.attack-journey p { max-width: 210px; margin: 0; color: var(--muted); font-size: 13px; }
.journey-arrow { width: clamp(30px, 4.5vw, 68px); height: 28px; margin: 0 clamp(6px, 2vw, 24px); color: #9db1ba; }
.case-note { display: grid; grid-template-columns: auto 1fr 1.8fr auto; gap: 18px; align-items: center; margin-top: 72px; padding: 20px 24px; background: #0e2a38; border-left: 3px solid var(--copper); }
.case-note b { color: var(--copper); font-size: 9px; letter-spacing: .12em; }
.case-note span { font-weight: 800; }
.case-note p { margin: 0; color: var(--muted); font-size: 13px; }
.case-note a { color: var(--teal); font-size: 11px; font-weight: 800; }

.architecture-section { display: grid; grid-template-columns: .38fr .62fr; gap: clamp(50px, 8vw, 120px); color: var(--white); background: var(--navy-950); }
.architecture-intro { max-width: 460px; margin: 0; align-self: start; position: sticky; top: 120px; }
.architecture-intro h2 { margin: 0; font-size: clamp(48px, 5.5vw, 82px); line-height: 1.04; letter-spacing: -.05em; }
.architecture-intro > p:last-child { margin-top: 30px; color: var(--muted-light); font-size: 17px; }
.architecture-canvas { margin: 0; }
.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; }
.arch-node { position: relative; display: grid; place-items: center; min-width: 0; aspect-ratio: .92; padding: 18px 8px; color: #8eabb6; border: 1px solid var(--line-dark); background: rgba(11,43,62,.45); cursor: pointer; transition: .25s; }
.arch-node:hover, .arch-node.active { color: var(--white); border-color: var(--cyan); background: rgba(176,138,91,.12); transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0,0,0,.18); }
.arch-node > span { position: absolute; top: 10px; left: 12px; color: var(--muted-light); font-size: 8px; }
.arch-node svg { width: clamp(36px, 4vw, 54px); height: clamp(36px, 4vw, 54px); color: var(--cyan-2); }
.arch-node b { margin-top: 15px; font-size: 10px; text-align: center; letter-spacing: .06em; }
.arch-node small { color: var(--muted-light); font-size: 7px; letter-spacing: .12em; }
.architecture-flow > i { width: clamp(12px, 2.3vw, 36px); height: 1px; background: linear-gradient(90deg, var(--cyan), rgba(176,138,91,.15)); }
.arch-detail { display: grid; grid-template-columns: .42fr .58fr; gap: clamp(24px, 4vw, 58px); min-height: 360px; margin-top: 34px; padding: clamp(28px, 4vw, 52px); border: 1px solid var(--line-dark); background: linear-gradient(145deg, rgba(19,61,82,.78), rgba(6,27,41,.82)); }
.detail-visual { position: relative; display: grid; place-items: center; overflow: hidden; color: var(--cyan-2); background: radial-gradient(circle, rgba(176,138,91,.18), transparent 55%); border: 1px solid rgba(196,165,116,.18); }
.detail-visual::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(196,165,116,.14); transform: rotate(45deg); }
.detail-visual svg { width: 96px; height: 96px; filter: drop-shadow(0 0 22px rgba(176,138,91,.3)); }
.detail-visual span { position: absolute; bottom: 16px; font-size: 8px; letter-spacing: .18em; }
.arch-detail small { color: var(--cyan-2); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.arch-detail h3 { margin: 12px 0; font-size: clamp(24px, 2.8vw, 38px); line-height: 1.18; letter-spacing: -.03em; }
.arch-detail p { color: var(--muted-light); }
.arch-detail ul { display: grid; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.arch-detail li { color: #d8e6eb; font-size: 12px; }
.arch-detail li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 10px; background: var(--copper); }
.architecture-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 18px; padding: 16px 18px; color: #90aab6; border: 1px solid var(--line-dark); font-size: 8px; font-weight: 800; letter-spacing: .11em; }

.lifecycle-section { background: var(--paper-2); }
.section-heading.compact { grid-template-columns: 1.45fr .55fr; }
.lifecycle-track { position: relative; display: grid; grid-template-columns: repeat(7, auto); align-items: center; margin-top: 90px; }
.phase { position: relative; display: grid; justify-items: start; gap: 7px; min-width: 155px; padding: 0; border: 0; background: transparent; cursor: pointer; text-align: left; }
.phase > span { display: grid; place-items: center; width: 54px; height: 54px; color: var(--white); background: #93a8b2; border-radius: 50%; font-weight: 800; transition: .25s; }
.phase svg { width: 31px; height: 31px; margin: 20px 0 7px 10px; color: #8299a5; }
.phase b { font-size: 11px; letter-spacing: .08em; }
.phase small { color: var(--muted); font-size: 10px; }
.phase.active > span { color: var(--navy-950); background: var(--cyan); box-shadow: 0 0 0 12px rgba(176,138,91,.12); }
.phase.active svg { color: var(--teal); }
.lifecycle-track > i { width: clamp(38px, 7vw, 118px); height: 1px; margin-right: 18px; background: linear-gradient(90deg, var(--cyan), #93a8b2); }
.phase-detail { display: grid; grid-template-columns: .25fr .35fr .4fr; gap: 40px; align-items: start; margin-top: 70px; padding: 30px 0; border-block: 1px solid var(--line); }
.phase-detail span { color: var(--teal); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.phase-detail h3 { margin: 0; font-size: 26px; line-height: 1.25; }
.phase-detail p { margin: 0; color: var(--muted); }

.comparison-section { color: var(--white); background: var(--navy-900); }
.comparison-head { display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: end; }
.compare-switch { display: flex; border: 1px solid rgba(255,255,255,.2); }
.compare-switch button { padding: 13px 18px; color: #8fa9b5; border: 0; background: transparent; cursor: pointer; font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.compare-switch button + button { border-left: 1px solid rgba(255,255,255,.2); }
.compare-switch button.active { color: var(--navy-950); background: var(--cyan); }
.comparison-view { display: none; margin-top: 28px; }
.comparison-view.active { display: grid; }
.comparison-view[data-panel="puf"] { grid-template-columns: 1fr .32fr 1fr; gap: 20px; }
.comparison-side { border: 1px solid rgba(255,255,255,.16); background: rgba(11,43,62,.65); border-radius: var(--radius-md); overflow: hidden; }
.comparison-side header { position: relative; min-height: auto; padding: 18px 24px; border-bottom: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); }
.comparison-side header span { color: var(--cyan-2); font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.comparison-side.neopuf header span { color: var(--copper-soft); }
.comparison-side header h3 { margin: 6px 0 0; font-size: 24px; font-weight: 750; color: #ffffff; }
.comparison-side header svg { position: absolute; right: 20px; bottom: 16px; width: 40px; height: 40px; color: var(--cyan-2); opacity: .85; }
.comparison-side.neopuf header svg { color: var(--copper); }
.state-hero { min-height: auto; padding: 18px 24px; background: linear-gradient(145deg, rgba(176,138,91,.1), transparent); }
.neopuf .state-hero { background: linear-gradient(145deg, rgba(255,139,44,.1), transparent); }
.state-hero small { color: #94a3b8; font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 700; letter-spacing: .1em; display: block; }
.state-hero strong { display: block; margin: 8px 0 8px; color: var(--cyan-2); font-size: 18px; font-weight: 750; line-height: 1.3; }
.neopuf .state-hero strong { color: var(--copper-soft); }
.state-hero p { margin: 0; color: #cbd5e1; font-size: 14px; line-height: 1.55; }
.comparison-side ul { margin: 0; padding: 0 24px 16px; list-style: none; }
.comparison-side li { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid rgba(255,255,255,.1); align-items: baseline; }
.comparison-side li b { font-family: 'IBM Plex Mono', monospace; font-size: 13px; font-weight: 700; color: #e2e8f0; letter-spacing: .02em; }
.comparison-side li span { color: #94a3b8; font-size: 13.5px; line-height: 1.5; }
.versus { display: grid; place-items: center; align-content: center; text-align: center; width: 165px; padding: 16px 14px; border: 1px solid rgba(196,165,116,.35); background: rgba(3,19,30,.94); border-radius: 8px; }
.versus span { color: var(--cyan-2); font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.versus b { margin: 8px 0; font-size: 15px; font-weight: 750; color: #ffffff; line-height: 1.3; }
.versus small { max-width: 150px; color: #cbd5e1; font-size: 12px; line-height: 1.45; }
.product-matrix { border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius-md); overflow: hidden; background: rgba(4,23,34,.75); }
.matrix-head, .product-matrix > div { display: grid; grid-template-columns: .5fr 1fr 1fr; }
.matrix-head { color: var(--white); background: var(--navy-950); }
.matrix-head span, .matrix-head b, .product-matrix > div > * { padding: 13px 18px; }
.matrix-head span { color: #94a3b8; font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.matrix-head b { color: var(--cyan-2); font-size: 14px; font-weight: 750; }
.matrix-head b:last-child { color: var(--copper-soft); }
.product-matrix > div:not(.matrix-head) { border-top: 1px solid rgba(255,255,255,.12); }
.product-matrix > div:not(.matrix-head) span { font-family: 'IBM Plex Mono', monospace; font-size: 13px; font-weight: 700; color: #e2e8f0; }
.product-matrix p { margin: 0; color: #cbd5e1; border-left: 1px solid rgba(255,255,255,.1); font-size: 13.5px; line-height: 1.55; }
.product-matrix .matrix-emphasis { background: rgba(176,138,91,.08); }
.comparison-conclusion { margin: 24px auto 0; padding: 18px 22px; color: #cae0e7; border-left: 3px solid var(--cyan); background: rgba(255,255,255,.05); }
.comparison-conclusion b { margin-right: 18px; color: var(--cyan-2); font-size: 9px; letter-spacing: .12em; }

.evidence-section { background: var(--paper); }
.evidence-title { display: grid; grid-template-columns: 1.1fr .8fr; column-gap: 70px; }
.evidence-title .eyebrow { grid-column: 1 / -1; }
.evidence-title > p:last-child { align-self: end; margin: 0 0 8px; color: var(--muted); font-size: 17px; }
.evidence-numbers { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 82px; border: 1px solid var(--line); }
.evidence-numbers article { position: relative; min-height: 300px; padding: 42px; border-right: 1px solid var(--line); }
.evidence-numbers article:last-child { border: 0; }
.evidence-numbers svg { width: 45px; height: 45px; color: var(--teal); }
.evidence-numbers strong { display: block; margin: 54px 0 12px; color: var(--ink); font-size: clamp(52px, 6vw, 82px); line-height: 1; letter-spacing: -.05em; }
.evidence-numbers span { display: block; max-width: 270px; color: var(--muted); font-size: 13px; }
.evidence-ribbon { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-top: 0; }
.evidence-ribbon span { padding: 18px; color: var(--muted); border-right: 1px solid var(--line); font-size: 10px; text-align: center; }
.evidence-ribbon span:last-child { border: 0; }
.evidence-ribbon b { display: block; color: var(--ink); font-size: 12px; }
.node-map { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; align-items: center; margin-top: 90px; padding: 65px; color: var(--white); background: var(--navy-950); }
.node-copy h3 { margin: 0 0 16px; font-size: 35px; }
.node-copy p { color: var(--muted-light); }
.wafer-visual { position: relative; min-height: 420px; }
.wafer-visual > svg { position: absolute; inset: 0; width: 100%; height: 100%; color: rgba(196,165,116,.26); stroke-width: .6; }
.wafer-visual span { position: absolute; left: var(--x); top: var(--y); display: grid; place-items: center; width: 52px; height: 52px; color: var(--navy-950); background: var(--cyan); border-radius: 50%; font-size: 11px; font-weight: 800; box-shadow: 0 0 0 9px rgba(176,138,91,.1); }
.wafer-visual span.hot { background: var(--copper); box-shadow: 0 0 0 9px rgba(255,139,44,.12); }

.applications-section { background: var(--paper-2); }
.application-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 70px; background: var(--line); border: 1px solid var(--line); }
.app-card { position: relative; min-height: 390px; overflow: hidden; padding: 48px; background: var(--white); }
.app-card::before, .app-card::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.app-card::before { width: 330px; height: 330px; right: -120px; bottom: -160px; background: radial-gradient(circle, rgba(176,138,91,.22), transparent 68%); }
.app-card::after { width: 160px; height: 160px; right: 35px; bottom: 25px; border: 1px solid rgba(3,159,159,.18); }
.app-card.app-auto::before, .app-card.app-iot::before { background: radial-gradient(circle, rgba(255,139,44,.22), transparent 68%); }
.app-card > svg { width: 54px; height: 54px; color: var(--teal); }
.app-card.app-auto > svg, .app-card.app-iot > svg { color: var(--copper); }
.app-card > span { display: block; margin-top: 55px; color: var(--teal); font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.app-card.app-auto > span, .app-card.app-iot > span { color: var(--copper); }
.app-card h3 { max-width: 460px; margin: 13px 0; font-size: clamp(25px, 3vw, 38px); line-height: 1.2; letter-spacing: -.03em; }
.app-card p { max-width: 470px; color: var(--muted); font-size: 13px; }
.app-card > b { position: absolute; right: 24px; top: 20px; color: #9db0b8; font-size: 10px; }

.accountability-section { color: var(--white); background: var(--navy-950); text-align: center; }
.accountability-line { display: flex; align-items: center; gap: 20px; color: var(--cyan-2); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.accountability-line i { flex: 1; height: 1px; background: linear-gradient(90deg, var(--cyan), var(--copper)); }
.accountability-line span:last-child { color: var(--copper-soft); }
.accountability-section h2 { margin: 58px auto 80px; font-size: clamp(42px, 5.5vw, 78px); line-height: 1.1; letter-spacing: -.045em; }
.ownership-flow { display: grid; grid-template-columns: repeat(9, auto); align-items: center; justify-content: center; }
.ownership-flow div { display: grid; place-items: center; min-width: 120px; }
.ownership-flow div svg { width: 46px; height: 46px; color: var(--cyan-2); }
.ownership-flow div:nth-of-type(n+4) svg { color: var(--copper-soft); }
.ownership-flow div b { margin-top: 18px; font-size: 10px; letter-spacing: .08em; }
.ownership-flow div span { color: var(--muted-light); font-size: 10px; }
.ownership-flow > i { width: clamp(35px, 5vw, 80px); height: 1px; margin: 0 12px; background: linear-gradient(90deg, var(--cyan), var(--copper)); }
.ownership-conclusion { max-width: 1000px; margin: 70px auto 0; padding: 24px; color: var(--navy-950); background: var(--cyan); font-size: 17px; font-weight: 800; }

.learning-section { color: var(--white); background: var(--navy-850); }
.learning-head { display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: end; }
.search-box { display: flex; align-items: center; gap: 12px; width: min(390px, 100%); padding: 12px 2px; border-bottom: 1px solid rgba(255,255,255,.35); }
.search-box svg { width: 24px; height: 24px; color: var(--cyan-2); }
.search-box input { width: 100%; color: var(--white); border: 0; outline: 0; background: transparent; }
.search-box input::placeholder { color: #78929f; }
.learning-body { display: grid; grid-template-columns: .34fr .66fr; gap: 50px; margin-top: 70px; }
.learning-paths { padding: 36px; background: var(--navy-950); border: 1px solid var(--line-dark); }
.learning-paths > span { color: var(--cyan-2); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.learning-paths h3 { margin: 18px 0 35px; font-size: 28px; line-height: 1.25; }
.learning-paths ol { margin: 0; padding: 0; list-style: none; }
.learning-paths li { display: grid; grid-template-columns: 35px 1fr auto; gap: 14px; padding: 17px 0; border-top: 1px solid rgba(255,255,255,.1); }
.lesson-number { color: var(--cyan-2); font-size: 10px; }
.lesson-copy { display: grid; gap: 3px; }
.lesson-copy strong { font-size: 12px; }
.lesson-copy small { color: var(--muted-light); font-size: 9px; }
.lesson-status { color: var(--copper-soft); font-size: 8px; letter-spacing: .1em; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter { padding: 8px 13px; color: #92aab5; border: 1px solid rgba(255,255,255,.16); background: transparent; cursor: pointer; font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.filter.active { color: var(--navy-950); border-color: var(--cyan); background: var(--cyan); }
.article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.article-card { position: relative; display: flex; flex-direction: column; min-height: 245px; padding: 28px; overflow: hidden; color: var(--white); background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.12); transition: transform .2s, border-color .2s, background .2s; }
.article-card:hover { transform: translateY(-4px); border-color: var(--cyan); background: rgba(176,138,91,.08); }
.article-card svg { position: absolute; right: 22px; top: 22px; width: 36px; height: 36px; color: rgba(196,165,116,.5); }
.card-meta { display: flex; gap: 12px; color: var(--cyan-2); font-size: 8px; font-weight: 800; letter-spacing: .11em; }
.article-card h3 { max-width: 80%; margin: 42px 0 9px; font-size: 22px; line-height: 1.25; }
.article-card p { margin: 0; color: var(--muted-light); font-size: 11px; }
.card-bottom { margin-top: auto; padding-top: 20px; color: #78929f; font-size: 8px; letter-spacing: .06em; }
.empty-state { padding: 40px; color: var(--muted-light); text-align: center; }

.sources-section { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; background: var(--paper); }
.sources-section h2 { margin: 0; font-size: clamp(38px, 4.2vw, 62px); line-height: 1.13; letter-spacing: -.045em; }
.sources-intro { align-self: start; }
.evidence-principle { max-width: 34rem; margin: 28px 0 0; padding: 24px 0 0; color: #536b77; border-top: 1px solid #cbd8dd; font-size: clamp(15px, 1.2vw, 18px); line-height: 1.9; letter-spacing: .01em; text-wrap: pretty; }
.evidence-principle strong { display: block; margin-bottom: 12px; color: #16384a; font-size: 11px; font-weight: 750; letter-spacing: .12em; }
.evidence-principle span { display: block; }
.source-list { border-top: 1px solid var(--line); }
.source-list a { display: grid; grid-template-columns: 36px 1fr .9fr; gap: 18px; align-items: center; padding: 23px 0; border-bottom: 1px solid var(--line); transition: color .2s; }
.source-list a:hover { color: var(--teal); }
.source-list span { color: var(--teal); font-size: 9px; font-weight: 800; }
.source-list b { font-size: 13px; }
.source-list small { color: var(--muted); font-size: 10px; }
.source-policy { grid-column: 1 / -1; padding: 20px 24px; color: #7f5327; background: #ffead1; border-left: 3px solid var(--copper); font-size: 11px; }

.closing-section { position: relative; min-height: 760px; display: grid; place-items: center; align-content: center; padding: var(--section-pad) var(--side); overflow: hidden; color: var(--white); background: radial-gradient(circle at 50% 35%, rgba(176,138,91,.14), transparent 30%), var(--navy-950); text-align: center; }
.closing-section::before { content: ""; position: absolute; inset: 8%; border: 1px solid rgba(196,165,116,.09); transform: rotate(-5deg); }
.closing-visual { display: flex; align-items: center; gap: 50px; color: var(--cyan-2); }
.closing-visual svg { width: 58px; height: 58px; }
.closing-visual svg:last-child { color: var(--copper); }
.closing-visual span { width: 130px; height: 1px; background: linear-gradient(90deg, var(--cyan), transparent 45%, transparent 55%, var(--copper)); }
.closing-section > p { margin: 30px 0 18px; color: var(--cyan-2); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.closing-section h2 { margin: 0 0 46px; font-size: clamp(44px, 5.5vw, 80px); line-height: 1.08; letter-spacing: -.05em; }
.light-button { position: relative; z-index: 2; }

footer { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 30px; padding: 28px var(--side); color: #78919c; background: #020e16; border-top: 1px solid rgba(255,255,255,.08); font-size: 9px; letter-spacing: .08em; }
.footer-brand { color: var(--white); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal:target { opacity: 1; transform: none; }

@keyframes hero-push { from { transform: scale(1.08); } to { transform: scale(1.02); } }
@keyframes key-pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.04); } }
@keyframes memory-glow { from { box-shadow: inset 0 0 8px rgba(176,138,91,.1); } to { box-shadow: inset 0 0 16px rgba(176,138,91,.38), 0 0 10px rgba(176,138,91,.16); } }

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto; }
  .primary-nav { display: none; position: absolute; inset: 64px 0 auto; width: 100%; justify-self: stretch; padding: 12px var(--side) 24px; background: rgba(3,19,30,.98); border-bottom: 1px solid rgba(255,255,255,.12); }
  .primary-nav.open { display: grid; }
  .primary-nav a { padding: 12px 0; }
  .menu-button { display: block; }
  .architecture-section { grid-template-columns: 1fr; }
  .architecture-intro { position: static; max-width: 760px; }
  .ownership-flow div { min-width: 96px; }
  .ownership-flow > i { margin: 0 6px; }
}

@media (max-width: 920px) {
  :root { --section-pad: 90px; }
  .brand-section { display: none; }
  .hero { min-height: 900px; }
  .hero-media { background: linear-gradient(0deg, var(--navy-950), rgba(3,19,30,.25) 60%, rgba(3,19,30,.45)), url("assets/secure-storage-hero-key.webp") 58% center/cover no-repeat; opacity: .72; }
  .hero-content { align-self: end; width: auto; margin: 80px var(--side) 105px; }
  .hero-caption { display: none; }
  .signal-strip { overflow-x: auto; justify-content: flex-start; }
  .thesis-grid, .section-heading, .section-heading.compact, .evidence-title, .comparison-head, .learning-head, .learning-body, .sources-section { grid-template-columns: 1fr; }
  .thesis-principles { grid-template-columns: 1fr; }
  .thesis-principles article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .power-lab { grid-template-columns: 1fr; }
  .attack-journey { grid-template-columns: 1fr; gap: 20px; }
  .attack-journey article { display: grid; grid-template-columns: auto 1fr; column-gap: 20px; align-items: center; }
  .journey-icon { grid-row: 1 / 4; margin: 0; }
  .attack-journey h3, .attack-journey p { max-width: none; }
  .journey-arrow { margin-left: 24px; transform: rotate(90deg); }
  .case-note { grid-template-columns: 1fr; }
  .architecture-flow { grid-template-columns: 1fr; gap: 12px; }
  .architecture-flow > i { width: 1px; height: 18px; margin: auto; }
  .arch-node { aspect-ratio: auto; min-height: 130px; grid-template-columns: auto 1fr; justify-items: start; gap: 18px; padding: 22px 30px; }
  .arch-node > span { right: 15px; left: auto; }
  .arch-node small { grid-column: 2; }
  .arch-detail { grid-template-columns: 1fr; }
  .detail-visual { min-height: 260px; }
  .lifecycle-track { grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .lifecycle-track > i { display: none; }
  .phase { min-width: 0; }
  .phase-detail { grid-template-columns: 1fr; gap: 15px; }
  .comparison-view[data-panel="puf"] { grid-template-columns: 1fr; }
  .versus { padding: 24px; }
  .matrix-head, .product-matrix > div { grid-template-columns: .6fr 1fr 1fr; }
  .evidence-title > p:last-child { margin-top: 0; }
  .evidence-numbers { grid-template-columns: 1fr; }
  .evidence-numbers article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .evidence-ribbon { grid-template-columns: repeat(2, 1fr); }
  .node-map { grid-template-columns: 1fr; padding: 40px; }
  .application-grid { grid-template-columns: 1fr; }
  .ownership-flow { grid-template-columns: 1fr; gap: 15px; }
  .ownership-flow > i { width: 1px; height: 24px; }
  .article-grid { grid-template-columns: 1fr; }
  .source-policy { grid-column: auto; }
  footer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  :root { --section-pad: 72px; --side: var(--hub-keepout, 24px); }
  .site-header { min-height: 48px; }
  .brand-mark { width: 22px; height: 22px; }
  .brand-copy strong { font-size: 16px; }
  .brand-copy small { font-size: 7px; }
  .header-button, .menu-button { width: 36px; height: 36px; }
  .language-toggle { min-width: 60px; height: 36px; padding: 0 9px; }
  .hero { min-height: 820px; }
  .hero h1 { font-size: 46px; }
  .hero-lede { font-size: 16px; }
  .hero-proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .hero-proof strong { font-size: 14px; }
  .hero-proof span { font-size: 8px; }
  .signal-strip i { width: 18px; }
  .section-index { display: none; }
  .power-lab { padding-left: var(--side); padding-right: var(--side); }
  .silicon-stage { min-height: 480px; }
  .chip-frame { width: 82%; padding: 22px; }
  .memory-array { margin-top: 28px; }
  .key-presence { right: 18px; bottom: 18px; }
  .architecture-section { padding-left: var(--side); padding-right: var(--side); }
  .arch-detail { padding: 24px; }
  .lifecycle-track { grid-template-columns: repeat(2, 1fr); gap: 28px 14px; }
  .comparison-section { padding-left: var(--side); padding-right: var(--side); }
  .compare-switch { width: 100%; }
  .compare-switch button { flex: 1; }
  .matrix-head { display: none; }
  .product-matrix > div { grid-template-columns: 1fr; }
  .product-matrix p { border-left: 0; border-top: 1px solid rgba(255,255,255,.1); }
  .evidence-ribbon { grid-template-columns: 1fr; }
  .node-map { padding: 28px 20px; }
  .wafer-visual { min-height: 330px; }
  .app-card { min-height: 350px; padding: 34px; }
  .learning-paths { padding: 28px 22px; }
  .source-list a { grid-template-columns: 30px 1fr; }
  .source-list small { grid-column: 2; }
  .closing-section { min-height: 650px; }
}

.research-launch {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr);
  gap: clamp(40px, 7vw, 110px);
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(120deg, #051b2a 0%, #082d3d 58%, #06373a 100%);
}
.research-launch::before { content: ""; position: absolute; inset: 0; opacity: .26; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 48px 48px; }
.research-launch > * { position: relative; z-index: 1; }
.research-launch h2 { max-width: 760px; margin: 20px 0 24px; color: var(--white); font-size: clamp(38px, 5vw, 70px); line-height: .98; }
.research-launch h2 em { color: var(--cyan-2); font-style: normal; }
.research-launch-copy > p:not(.eyebrow) { max-width: 690px; color: #a9c2cc; font-size: 17px; line-height: 1.85; }
.research-launch-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 34px; }
.research-launch-actions .text-link { color: var(--white); }
.research-topic-links { display: grid; gap: 1px; max-width: 760px; margin-top: 30px; padding: 1px; background: rgba(255,255,255,.14); }
.research-topic-links a { display: grid; grid-template-columns: minmax(170px,.8fr) minmax(240px,1.15fr); gap: 7px 24px; align-items: center; min-height: 82px; padding: 17px 20px; color: var(--white); background: rgba(5,25,37,.82); transition: background-color .2s ease, transform .2s ease; }
.research-topic-links a:hover { background: rgba(12,52,65,.94); transform: translateX(4px); }
.research-topic-links small { grid-row: 1 / 3; color: var(--cyan-2); font-size: 9px; font-weight: 900; letter-spacing: .13em; }
.research-topic-links strong { font-family: var(--display); font-size: 18px; line-height: 1.15; }
.research-topic-links span { color: #8faab5; font-size: 10px; letter-spacing: .055em; }
.research-launch-visual { min-height: 430px; display: grid; place-items: center; }
.research-orbit { position: absolute; width: min(390px, 88%); aspect-ratio: 1; border: 1px solid rgba(82,226,220,.35); border-radius: 50%; animation: slow-spin 24s linear infinite; }
.research-orbit::before, .research-orbit::after { content: ""; position: absolute; inset: 17%; border: 1px dashed rgba(255,255,255,.15); border-radius: 50%; }
.research-orbit::after { inset: 34%; border-style: solid; border-color: rgba(210,137,79,.38); }
.research-orbit span { position: absolute; display: grid; place-items: center; width: 86px; height: 42px; color: #031823; background: var(--cyan-2); font-size: 11px; font-weight: 900; letter-spacing: .14em; }
.research-orbit span:first-child { top: 6%; left: -3%; }
.research-orbit span:last-child { right: -3%; bottom: 6%; background: var(--copper); }
.research-equation { position: relative; width: 240px; padding: 28px; text-align: center; border: 1px solid rgba(255,255,255,.2); background: rgba(3,18,28,.84); box-shadow: 0 24px 70px rgba(0,0,0,.28); }
.research-equation small { display: block; margin-bottom: 14px; color: var(--cyan-2); font-size: 9px; font-weight: 900; letter-spacing: .18em; }
.research-equation b { font-family: var(--display); font-size: 25px; line-height: 1.05; letter-spacing: .02em; }
.research-signal { position: absolute; inset: auto 8% 12% 8%; display: flex; align-items: end; gap: 7px; height: 44px; }
.research-signal i { flex: 1; height: 18%; background: linear-gradient(180deg, var(--cyan-2), transparent); animation: signal-rise 1.8s ease-in-out infinite alternate; }
.research-signal i:nth-child(2) { height: 64%; animation-delay: -.4s; }
.research-signal i:nth-child(3) { height: 28%; animation-delay: -.8s; }
.research-signal i:nth-child(4) { height: 92%; animation-delay: -1.2s; }
.research-signal i:nth-child(5) { height: 44%; animation-delay: -1.5s; }
@keyframes slow-spin { to { transform: rotate(360deg); } }
@keyframes signal-rise { to { transform: scaleY(.45); opacity: .45; } }

@media (max-width: 920px) {
  .research-launch { grid-template-columns: 1fr; }
  .research-launch-visual { min-height: 360px; }
}

@media (max-width: 620px) {
  .research-launch-visual { min-height: 300px; }
  .research-launch h2 { font-size: 39px; }
  .research-topic-links a { grid-template-columns: 1fr; gap: 7px; padding: 17px; }
  .research-topic-links small { grid-row: auto; }
  .research-topic-links a:hover { transform: none; }
  .research-orbit { width: 280px; }
}

.assurance-preview {
  background: linear-gradient(145deg, #071d2c 0%, #0a2e3c 55%, #123b42 100%);
  color: #f5f0e6;
  overflow: hidden;
  position: relative;
}
.assurance-preview::before { content:""; position:absolute; inset:0; opacity:.18; background: repeating-linear-gradient(90deg, transparent 0 78px, rgba(255,255,255,.1) 79px 80px), repeating-linear-gradient(0deg, transparent 0 78px, rgba(255,255,255,.08) 79px 80px); }
.assurance-preview > * { position:relative; }
.assurance-preview-head { display:grid; grid-template-columns:1.2fr .8fr; gap:clamp(2rem,4vw,4rem); align-items:end; }
.assurance-preview-head h2 { margin:.8rem 0 0; max-width:100%; font-size:clamp(1.8rem,3vw,3rem); line-height:1.2; letter-spacing:-.025em; font-weight:650; }
.assurance-preview-head > p { color:#b8ccd0; line-height:1.85; max-width:42rem; }
[data-assurance-en] { display:none; }
body[data-language="en"] [data-assurance-zh] { display:none; }
body[data-language="en"] [data-assurance-en] { display:inline; }
.assurance-chain { display:grid; grid-template-columns:repeat(11,auto); align-items:center; gap:clamp(.35rem,1vw,1rem); margin:clamp(3rem,6vw,6.5rem) 0; }
.assurance-chain article { min-width:0; padding:1.35rem 1rem; border-top:1px solid rgba(205,151,83,.85); background:rgba(255,255,255,.045); backdrop-filter:blur(8px); }
.assurance-chain article span { display:block; color:#cd9753; font:600 .7rem/1 var(--font-mono,monospace); letter-spacing:.12em; }
.assurance-chain article b { display:block; margin:.8rem 0 .6rem; font-size:.88rem; letter-spacing:.12em; }
.assurance-chain article small { color:#a9c1c5; line-height:1.5; }
.assurance-chain > i { width:clamp(.6rem,1.4vw,1.8rem); height:1px; background:#63848a; position:relative; }
.assurance-chain > i::after { content:""; position:absolute; right:0; top:-3px; border-left:5px solid #63848a; border-top:3px solid transparent; border-bottom:3px solid transparent; }
.assurance-preview-foot { display:flex; justify-content:space-between; gap:2rem; align-items:center; padding-top:2rem; border-top:1px solid rgba(255,255,255,.15); }
.assurance-preview-foot b { color:#cd9753; font-size:.7rem; letter-spacing:.15em; }
.assurance-preview-foot p { margin:.55rem 0 0; color:#d7e1e1; }
@media (max-width:1050px) { .assurance-chain { grid-template-columns:repeat(3,1fr); } .assurance-chain > i { display:none; } }
@media (max-width:720px) { .assurance-preview-head { grid-template-columns:1fr; } .assurance-preview-head h2 { font-size:clamp(2.2rem,11vw,3.6rem); line-height:1.16; } .assurance-chain { grid-template-columns:1fr 1fr; } .assurance-preview-foot { align-items:flex-start; flex-direction:column; } }

/* Premium editorial finish — shared visual language across the knowledge hub. */
html { background: #03141e; }
body { text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
::selection { color: #e8e0d4; background: #c4a574; }
.site-header {
  background: #061925;
  border-bottom-color: rgba(196,165,116,.22);
  box-shadow: none;
  backdrop-filter: blur(16px);
}
.brand-mark { box-shadow: none; }
.brand-section { position: relative; }
.brand-section::before { content:""; position:absolute; left:-1rem; top:50%; width:1px; height:1.4rem; background:rgba(196,165,116,.4); transform:translateY(-50%); }
.primary-nav a { position:relative; transition:color .25s ease; }
.primary-nav a::after { content:""; position:absolute; left:12%; right:12%; bottom:6px; height:1px; background:#c4a574; transform:scaleX(0); transform-origin:center; transition:transform .25s ease; box-shadow:none; }
.primary-nav a:hover,.primary-nav a.active { color:#f4f1ea; transform:none; }
.primary-nav a:hover::after,.primary-nav a.active::after { transform:scaleX(1); }
.hero::after { content:""; position:absolute; inset:0; pointer-events:none; background:radial-gradient(circle at 74% 34%,transparent 0 16%,rgba(0,9,15,.16) 48%,rgba(0,9,15,.48) 100%),repeating-linear-gradient(115deg,rgba(255,255,255,.012) 0 1px,transparent 1px 5px); mix-blend-mode:soft-light; }
.hero-content,.hero-caption,.scroll-cue { z-index:2; }
.hero-content h1 { text-wrap:balance; text-shadow:0 12px 42px rgba(0,8,14,.32); }
.hero-lede { text-wrap:pretty; }
.hero-proof { position:relative; }
.hero-proof::before { content:""; position:absolute; left:0; top:-1px; width:32%; height:1px; background:linear-gradient(90deg,#c4a574,transparent); box-shadow:none; }
.button { position:relative; overflow:hidden; isolation:isolate; transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.button::after { content:""; position:absolute; z-index:-1; inset:-40% auto -40% -28%; width:24%; background:rgba(255,255,255,.25); transform:skewX(-18deg); transition:left .45s ease; }
.button:hover { transform:translateY(-3px); }
.button:hover::after { left:112%; }
.button.primary:hover { box-shadow:0 16px 38px rgba(176,138,91,.23),0 0 0 1px rgba(196,165,116,.25); }
.section { position:relative; }
.section-heading h2,.evidence-title h2,.learning-head h2,.closing-section h2,.assurance-preview h2 { text-wrap:balance; }
.section-heading > p,.section-lede,.thesis-copy p,.evidence-title > p { text-wrap:pretty; }
.section-index { color:rgba(24,101,106,.45); text-shadow:0 1px rgba(255,255,255,.35); }
.thesis-cards article,.attack-journey article,.application-grid article,.evidence-numbers article,.article-card {
  transition:transform .32s cubic-bezier(.2,.75,.25,1),box-shadow .32s ease,border-color .32s ease,background-color .32s ease;
}
.thesis-cards article:hover,.attack-journey article:hover,.application-grid article:hover,.evidence-numbers article:hover,.article-card:hover {
  transform:translateY(-6px);
  box-shadow:0 24px 50px rgba(3,26,35,.13),0 1px 0 rgba(255,255,255,.6) inset;
  border-color:rgba(31,130,134,.34);
}
.architecture-canvas,.power-visual,.comparison-matrix,.node-map { box-shadow:0 34px 80px rgba(2,22,30,.14); }
.arch-node { transition:transform .25s ease,background-color .25s ease,border-color .25s ease; }
.arch-node:hover { transform:translateY(-4px); }
.evidence-ribbon { background-image:linear-gradient(90deg,rgba(255,255,255,.035),transparent 40%,rgba(255,255,255,.025)); box-shadow:0 18px 50px rgba(0,10,16,.16); }
.source-list a { transition:padding-left .25s ease,background-color .25s ease,border-color .25s ease; }
.source-list a:hover { padding-left:1rem; background:rgba(13,100,105,.035); border-color:rgba(15,105,110,.3); }
.immersive-chapter::after { content:""; position:absolute; inset:0; pointer-events:none; background:linear-gradient(90deg,rgba(0,12,18,.16),transparent 45%,rgba(0,12,18,.12)),repeating-linear-gradient(0deg,rgba(255,255,255,.012) 0 1px,transparent 1px 4px); }
.immersive-chapter > * { position:relative; z-index:1; }
.assurance-preview { box-shadow:inset 0 1px rgba(255,255,255,.06),inset 0 -1px rgba(255,255,255,.05); }
.assurance-chain article { transition:transform .28s ease,background-color .28s ease,border-color .28s ease; }
.assurance-chain article:hover { transform:translateY(-5px); background:rgba(255,255,255,.075); border-color:#e0ac67; }
@media (max-width:720px) {
  body[data-language="zh"] h1,body[data-language="zh"] h2 { letter-spacing:-.018em; line-break:strict; word-break:keep-all; overflow-wrap:normal; }
  .hero-content h1 { max-width:100%; line-height:1.2; }
  .hero-lede { font-size:1rem; line-height:1.8; }
  .section { padding-top:5.2rem; padding-bottom:5.2rem; }
  .thesis-cards article:hover,.attack-journey article:hover,.application-grid article:hover,.evidence-numbers article:hover,.article-card:hover { transform:none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* 2026 editorial redesign — immersive chapter rhythm inspired by spatial storytelling */
.immersive-chapter {
  position: relative;
  min-height: min(900px, 88svh);
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background-image: linear-gradient(90deg, rgba(1,12,18,.86) 0%, rgba(1,12,18,.42) 48%, rgba(1,12,18,.72) 100%), url("assets/nvm-lab-panorama.png");
  background-repeat: no-repeat;
  background-size: cover;
}
.immersive-chapter::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(0deg, rgba(1,12,18,.74), transparent 34%, rgba(1,12,18,.28)), radial-gradient(circle at 55% 48%, transparent 0 22%, rgba(1,12,18,.18) 70%);
}
.immersive-chapter::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .14;
  background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 90px 90px;
  mask-image: linear-gradient(90deg, black, transparent 68%);
}
.immersive-wafer { background-position: 17% center; }
.immersive-probe { background-position: 50% center; }
.immersive-silicon { background-position: 84% center; }
.chapter-rail {
  position: absolute;
  inset: 0 auto 0 0;
  width: clamp(78px, 8vw, 118px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 42px 0 38px;
  background: rgba(238,242,238,.88);
  color: #10252d;
  backdrop-filter: blur(12px);
}
.chapter-rail span { font-size: 8px; font-weight: 900; letter-spacing: .18em; writing-mode: vertical-rl; }
.chapter-rail i { flex: 1; width: 1px; margin: 24px 0; background: linear-gradient(#0aa9a7, rgba(16,37,45,.12)); }
.chapter-rail b { font-size: 10px; line-height: 1.35; letter-spacing: .12em; writing-mode: vertical-rl; }
.chapter-copy { width: min(1100px, 76vw); margin-left: clamp(150px, 15vw, 250px); padding: 80px 0; }
.chapter-copy.align-right { margin-left: auto; margin-right: var(--side); text-align: right; }
.chapter-copy p { margin: 0 0 18px; color: var(--cyan-2); font-size: 10px; font-weight: 900; letter-spacing: .22em; }
.chapter-copy h2 { max-width: 1000px; margin: 0; font-size: clamp(54px, 7.2vw, 112px); line-height: .92; letter-spacing: -.055em; text-shadow: 0 8px 36px rgba(0,0,0,.44); }
.chapter-copy.align-right h2 { margin-left: auto; }
.chapter-copy h2 em { color: var(--cyan-2); font-style: normal; }
.chapter-copy > span { display: block; margin-top: 34px; color: #d2e0e3; font-size: 11px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.chapter-cue { position: absolute; right: var(--side); bottom: 38px; display: grid; place-items: center; width: 54px; height: 54px; color: var(--navy-950); background: var(--cyan); border-radius: 50%; font-size: 20px; transition: transform .25s, background .25s; }
.chapter-cue:hover { transform: translateY(5px); background: #0e2a38; }

/* Give the information sections a richer editorial hierarchy. */
.thesis-section { background: linear-gradient(135deg, #f4f7f7 0 66%, #e1ecec 66%); }
.thesis-principles { gap: 18px; border: 0; }
.thesis-principles article { overflow: hidden; min-height: 340px; border: 0; background: #0e2a38; box-shadow: 0 20px 65px rgba(3,20,31,.08); }
.thesis-principles article::after { content: ""; position: absolute; right: -28px; bottom: -38px; width: 150px; aspect-ratio: 1; border: 1px solid rgba(3,159,159,.18); border-radius: 50%; box-shadow: 0 0 0 26px rgba(3,159,159,.04),0 0 0 54px rgba(3,159,159,.025); }
.attack-section { background: linear-gradient(180deg,#f4f7f8,#e8eff0); }
.attack-journey { position: relative; padding: 52px 44px; background: #0e2a38; box-shadow: 0 26px 80px rgba(3,20,31,.09); }
.case-note { margin-top: 0; box-shadow: 0 18px 45px rgba(3,20,31,.09); }
.lifecycle-section { background: radial-gradient(circle at 84% 18%, rgba(176,138,91,.12), transparent 23%), linear-gradient(145deg,#edf3f3,#dce8e8); }
.lifecycle-track { padding: 48px 40px; background: rgba(255,255,255,.67); box-shadow: 0 24px 70px rgba(3,20,31,.08); }
.phase-detail { margin-top: 0; padding: 34px 40px; background: #0e2a38; border: 0; border-top: 3px solid var(--cyan); }
.evidence-section { background: linear-gradient(135deg,#f6f8f7 0 57%,#e4eded 57%); }
.evidence-numbers article { position: relative; overflow: hidden; background: #0e2a38; box-shadow: 0 18px 58px rgba(3,20,31,.08); }
.applications-section { background: #061b29; color: #fff; }
.applications-section .section-heading > p { color: var(--muted-light); }
.applications-section .eyebrow { color: var(--cyan-2); }
.app-card { border-color: rgba(255,255,255,.12); background: linear-gradient(145deg,rgba(19,61,82,.82),rgba(5,24,36,.96)); box-shadow: 0 22px 55px rgba(0,0,0,.18); }
.app-card:hover { border-color: var(--cyan); transform: translateY(-8px); }
.learning-section { background: radial-gradient(circle at 12% 22%,rgba(176,138,91,.12),transparent 26%),#061b29; }
.learning-paths,.article-card { box-shadow: 0 22px 60px rgba(0,0,0,.16); }
.sources-section { background: linear-gradient(180deg,#f4f7f8,#e4ecee); }
.source-list a { background: #0e2a38; margin-bottom: 8px; padding-left: 22px; padding-right: 22px; border: 1px solid transparent; }
.source-list a:hover { border-color: var(--cyan); background: #0e2a38; transform: translateX(6px); }

@media (max-width: 760px) {
  .immersive-chapter { min-height: 680px; background-size: auto 100%; }
  .immersive-wafer { background-position: 18% center; }
  .immersive-probe { background-position: 51% center; }
  .immersive-silicon { background-position: 82% center; }
  .chapter-rail { width: 54px; padding: 28px 0; }
  .chapter-copy,.chapter-copy.align-right { width: auto; margin: 0 24px 0 84px; padding: 80px 0; text-align: left; }
  .chapter-copy h2 { font-size: clamp(46px,14vw,68px); }
  .chapter-copy.align-right h2 { margin-left: 0; }
  .chapter-cue { right: 24px; bottom: 24px; width: 46px; height: 46px; }
  .thesis-principles { grid-template-columns: 1fr; }
  .thesis-principles article { min-height: 260px; }
  .attack-journey,.lifecycle-track { padding: 28px 22px; }
}

/* Final cascade: Silicon IP art direction and complete polish */
body { font-family: var(--sans-zh); letter-spacing: .012em; }
h1,h2,h3,p { text-wrap: pretty; }
.hero h1,.thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.closing-section h2 { font-family: var(--sans-zh); font-weight: 650; letter-spacing: -.055em; }
.hero h1 em,h2 em,.chapter-copy h2 em { font-family: var(--serif-zh); font-style: normal; font-weight: 500; letter-spacing: -.065em; }
.hero-lede,.section-lede,.section-heading>p,.thesis-copy,.architecture-intro>p:last-child,.evidence-title>p:last-child,.research-launch-copy>p:not(.eyebrow) { line-height: 1.95; letter-spacing: .018em; }
.immersive-chapter { background-image: linear-gradient(90deg,rgba(1,12,18,.91) 0%,rgba(1,12,18,.4) 42%,rgba(1,12,18,.64) 100%),url("assets/silicon-ip-panorama-v2.webp"); }
.immersive-wafer { background-position: 22% center; }.immersive-probe { background-position: 57% center; }.immersive-silicon { background-position: 84% center; }
.chapter-copy h2 { font-family: var(--sans-zh); font-weight: 620; }.chapter-copy h2 em { color: var(--cyan-2); }
.button,.thesis-principles article,.evidence-numbers article,.phase-detail,.case-note,.source-list a,.silicon-stage,.architecture-canvas,.arch-node,.arch-detail,.architecture-footer,.lifecycle-track,.comparison-side,.product-matrix,.comparison-conclusion,.evidence-ribbon,.node-map,.app-card,.learning-paths,.article-card,.research-equation { border-radius: var(--radius-md); }
.thesis-principles article,.evidence-numbers article,.app-card,.article-card,.source-list a { transition: transform .3s var(--ease-premium),box-shadow .3s var(--ease-premium),border-color .3s,background .3s; }
.thesis-principles article:hover,.evidence-numbers article:hover,.app-card:hover,.article-card:hover { transform: translateY(-7px); }
.power-lab { background: radial-gradient(circle at 72% 46%,rgba(176,138,91,.09),transparent 30%),linear-gradient(145deg,#071d2a,#03131e); }
.architecture-section { background: radial-gradient(circle at 74% 36%,rgba(176,138,91,.08),transparent 31%),#03131e; }
.architecture-canvas { padding: clamp(18px,3vw,38px); background: rgba(7,30,43,.55); border: 1px solid rgba(196,165,116,.1); box-shadow: 0 30px 90px rgba(0,0,0,.24); }
.evidence-numbers,.application-grid,.article-grid { gap: 16px; border: 0; background: transparent; }
.evidence-numbers article { border: 0; }.applications-section { background: #061b29; color: #fff; }.applications-section .section-heading>p { color: var(--muted-light); }
.app-card { border-color: rgba(255,255,255,.12); background: linear-gradient(145deg,rgba(19,61,82,.82),rgba(5,24,36,.96)); box-shadow: 0 22px 55px rgba(0,0,0,.18); }
.accountability-section { background: radial-gradient(circle at 50% 20%,rgba(176,138,91,.1),transparent 28%),linear-gradient(180deg,#082334,#03131e); }
.ownership-flow div { min-height: 150px; padding: 22px 16px; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.source-list a:hover { transform: translateX(6px); }
@media(max-width:620px){body{line-height:1.72}.hero h1{font-size:clamp(44px,13.6vw,62px);line-height:1.08}.hero h1 em{display:block;margin-top:6px;font-size:.9em;line-height:1.16}.hero-lede{font-size:16px;line-height:1.88}.thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.closing-section h2{font-size:clamp(35px,10.5vw,47px);line-height:1.18;letter-spacing:-.045em}.immersive-wafer{background-position:31% center}.immersive-probe{background-position:62% center}.immersive-silicon{background-position:88% center}.chapter-copy h2{font-size:47px;line-height:1.05}.architecture-canvas{margin-left:0;margin-right:0;padding:14px}}

/* ST-inspired beginner learning refinement: calm hierarchy, readable Chinese */
:root { --section-pad: clamp(72px,8vw,118px); --side: clamp(24px,6vw,88px); --hub-keepout: clamp(24px,4vw,64px); }
body { background: #f7f9fa; color: #122b42; line-height: 1.75; }
.site-header { min-height: 70px; background: rgba(4,28,45,.96); }
.site-header.scrolled { min-height: 62px; }
.primary-nav a { padding-block: 22px; }

.hero { min-height: min(820px,92svh); }
.hero-content { width: min(720px,58vw); }
.hero h1 {
  max-width: 720px;
  font-size: clamp(48px,5.15vw,74px);
  line-height: 1.2;
  letter-spacing: .005em;
  font-weight: 650;
}
.hero h1 em {
  display: block;
  margin-top: 7px;
  font-family: var(--serif-zh);
  font-style: normal;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: .025em;
}
.hero-lede { max-width: 650px; margin-top: 28px; font-size: clamp(16px,1.25vw,19px); line-height: 1.95; }
.hero-proof { margin-top: 44px; }

.thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.sources-section h2,.closing-section h2,.power-copy h2,.architecture-intro h2 {
  font-size: clamp(34px,3.65vw,54px);
  line-height: 1.35;
  letter-spacing: .005em;
  font-weight: 650;
}
.thesis-grid h2 em,.section-heading h2 em,.comparison-head h2 em,.accountability-section h2 em,.research-launch h2 em {
  letter-spacing: .015em;
  line-height: 1.4;
}
.section-heading { gap: clamp(36px,6vw,90px); }
.section-heading::after,.comparison-head::after,.learning-head::after { bottom: -22px; width: 56px; }
.section-kicker,.eyebrow { margin-bottom: 18px; }

.immersive-chapter { min-height: min(650px,72svh); }
.chapter-copy { width: min(920px,72vw); }
.chapter-copy h2 {
  max-width: 900px;
  font-size: clamp(42px,4.8vw,68px);
  line-height: 1.28;
  letter-spacing: .015em;
  font-weight: 620;
  text-shadow: 0 6px 26px rgba(0,0,0,.42);
}
.chapter-copy h2 em { letter-spacing: .025em; line-height: 1.35; }
.chapter-copy > span { margin-top: 26px; letter-spacing: .1em; }

.thesis-section,.attack-section,.lifecycle-section,.evidence-section,.sources-section { background: #0e2a38; }
.thesis-grid { align-items: start; }
.thesis-copy,.section-heading>p,.evidence-title>p:last-child { font-size: 16px; color: #637687; }
.thesis-principles { margin-top: 70px; gap: 14px; }
.thesis-principles article { min-height: 280px; padding: 36px; border: 1px solid #0a2230; box-shadow: 0 12px 34px rgba(10,41,62,.06); }
.thesis-principles h3 { margin-top: 28px; font-size: 22px; letter-spacing: 0; }

.power-lab { min-height: 760px; }
.power-copy h2 { max-width: 520px; }
.silicon-stage { min-height: 520px; }
.attack-journey { margin-top: 64px; padding: 38px; border: 1px solid #0a2230; box-shadow: 0 12px 34px rgba(10,41,62,.06); }
.attack-journey h3 { font-size: 18px; letter-spacing: 0; }
.case-note { box-shadow: none; border: 1px solid #0a2230; border-left: 4px solid var(--copper); }

.architecture-section { padding-top: 100px; padding-bottom: 100px; }
.architecture-intro { top: 100px; }
.architecture-canvas { box-shadow: 0 20px 60px rgba(0,0,0,.16); }
.arch-detail h3 { font-size: clamp(24px,2.2vw,32px); line-height: 1.42; letter-spacing: 0; }

.lifecycle-section { background: #f2f5f7; }
.lifecycle-track { margin-top: 70px; padding: 38px; border: 1px solid #0a2230; box-shadow: 0 12px 34px rgba(10,41,62,.06); }
.phase-detail { padding: 30px 38px; border: 1px solid #0a2230; border-top: 3px solid var(--cyan); }
.phase-detail h3 { font-size: 23px; letter-spacing: 0; }

.comparison-section { background: #082237; }
.comparison-view { margin-top: 54px; }
.comparison-side { box-shadow: 0 18px 50px rgba(0,0,0,.18); }
.versus { width: 190px; border-radius: 10px; aspect-ratio: auto; padding: 28px 18px; }

.evidence-section { background: #0e2a38; }
.evidence-numbers { margin-top: 64px; }
.evidence-numbers article { min-height: 260px; padding: 36px; border: 1px solid #0a2230; box-shadow: 0 12px 34px rgba(10,41,62,.06); }
.evidence-numbers strong { margin-top: 38px; font-size: clamp(46px,5vw,68px); letter-spacing: -.02em; }
.evidence-ribbon { margin-top: 14px; }

.applications-section { background: #f2f5f7; color: #122b42; }
.applications-section .section-heading>p { color: #637687; }
.applications-section .eyebrow { color: #087f8c; }
.application-grid { margin-top: 62px; }
.app-card { min-height: 330px; padding: 36px; color: #122b42; background: #0e2a38; border: 1px solid #0a2230; box-shadow: 0 12px 34px rgba(10,41,62,.06); }
.app-card h3 { margin-top: 12px; font-size: clamp(23px,2.25vw,31px); line-height: 1.45; letter-spacing: 0; }
.app-card p { color: #637687; }
.accountability-section h2 { max-width: 940px; margin: 48px auto 62px; }
.ownership-flow div { min-height: 136px; }

.learning-section { padding-top: 100px; padding-bottom: 100px; }
.learning-head h2 { max-width: 840px; }
.learning-paths { padding: 38px; }
.article-card { min-height: 225px; padding: 26px; }
.article-card h3 { margin-top: 36px; font-size: 20px; line-height: 1.45; letter-spacing: 0; }
.research-launch { padding-top: 100px; padding-bottom: 100px; }
.research-launch h2 { max-width: 720px; }
.sources-section { background: #f2f5f7; }
.source-list a { min-height: 82px; box-shadow: none; border: 1px solid #0a2230; }
.closing-section { min-height: 600px; }
.closing-section h2 { max-width: 900px; }

@media(max-width:920px){
  .hero-content{width:auto;margin-right:var(--side)}
  .hero h1{max-width:650px}
  .chapter-copy,.chapter-copy.align-right{width:auto;margin-left:110px;margin-right:var(--side);text-align:left}
  .chapter-copy.align-right h2{margin-left:0}
}
@media(max-width:620px){
  .hero{min-height:760px}.hero-content{padding-top:70px}.hero h1{font-size:clamp(40px,11.8vw,51px);line-height:1.25;letter-spacing:.01em}.hero h1 em{font-size:.92em;line-height:1.34;letter-spacing:.03em}
  .thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.sources-section h2,.closing-section h2,.power-copy h2,.architecture-intro h2{font-size:clamp(31px,8.8vw,40px);line-height:1.42;letter-spacing:.01em}
  .immersive-chapter{min-height:570px}.chapter-copy,.chapter-copy.align-right{margin-left:76px;margin-right:22px}.chapter-copy h2{font-size:clamp(35px,9.8vw,44px);line-height:1.4;letter-spacing:.02em}.chapter-copy h2 em{line-height:1.45;letter-spacing:.035em}
  .thesis-principles article,.app-card,.article-card{padding:28px 24px}.attack-journey,.lifecycle-track{padding:26px 20px}.evidence-numbers article{padding:30px 26px}
}

/* Softer headline scale — technical confidence without advertising weight */
.hero-content { width: min(660px,54vw); }
.hero h1 {
  max-width: 650px;
  font-size: var(--type-hero);
  line-height: 1.3;
  font-weight: 580;
  letter-spacing: .012em;
}
.hero h1 em {
  margin-top: 9px;
  font-size: .88em;
  line-height: 1.4;
  font-weight: 450;
  letter-spacing: .035em;
  color: #8ce5df;
}
.hero-lede { margin-top: 24px; }

.thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.sources-section h2,.closing-section h2,.power-copy h2,.architecture-intro h2 {
  font-size: var(--type-section);
  line-height: 1.46;
  font-weight: 580;
  letter-spacing: .012em;
}
.thesis-grid h2 em,.section-heading h2 em,.comparison-head h2 em,.accountability-section h2 em,.research-launch h2 em {
  font-weight: 450;
  letter-spacing: .025em;
}
.section-heading { align-items: start; }
.section-heading>p { padding-top: 10px; }

.immersive-chapter { min-height: min(560px,64svh); }
.chapter-copy { width: min(780px,66vw); }
.chapter-copy h2 {
  max-width: 780px;
  font-size: var(--type-chapter);
  line-height: 1.42;
  font-weight: 540;
  letter-spacing: .022em;
  text-shadow: 0 4px 18px rgba(0,0,0,.32);
}
.chapter-copy h2 em { font-weight: 450; letter-spacing: .035em; }
.chapter-copy p { margin-bottom: 14px; }
.chapter-copy>span { margin-top: 20px; }
.chapter-rail { background: rgba(238,242,238,.93); }

.accountability-section h2 { max-width: 820px; }
.research-launch h2 { max-width: 650px; }
.closing-section h2 { max-width: 760px; }
.evidence-numbers strong { font-size: clamp(42px,4.25vw,58px); font-weight: 650; }
.app-card h3 { font-size: clamp(21px,1.85vw,27px); font-weight: 600; }

@media(max-width:920px){
  .hero-content{width:auto;max-width:620px}
  .chapter-copy,.chapter-copy.align-right{max-width:680px}
}

/* Highlighted Chinese stays in the same sans-serif family; color supplies hierarchy. */
.hero h1 em,
.thesis-grid h2 em,
.section-heading h2 em,
.comparison-head h2 em,
.accountability-section h2 em,
.research-launch h2 em,
.chapter-copy h2 em {
  font-family: var(--sans-zh);
  font-style: normal;
  font-weight: 520;
  letter-spacing: .018em;
}
.hero h1 em { color: #c4a574; }
.assurance-preview-head h2 {
  font-size: clamp(36px,4.25vw,56px);
  line-height: 1.28;
  font-weight: 580;
  letter-spacing: .012em;
}
@media(max-width:620px){
  .hero{min-height:700px}
  .hero h1{font-size:var(--type-hero-mobile);line-height:1.38;font-weight:580;letter-spacing:.015em}
  .hero h1 em{font-size:.88em;line-height:1.48;letter-spacing:.04em}
  .thesis-grid h2,.section-heading h2,.comparison-head h2,.evidence-title h2,.learning-head h2,.accountability-section h2,.research-launch h2,.sources-section h2,.closing-section h2,.power-copy h2,.architecture-intro h2{font-size:var(--type-section-mobile);line-height:1.52;font-weight:580;letter-spacing:.015em}
  .immersive-chapter{min-height:500px}
  .chapter-copy h2{font-size:var(--type-chapter-mobile);line-height:1.5;font-weight:540;letter-spacing:.025em}
  .assurance-preview-head h2{font-size:clamp(29px,8.2vw,34px);line-height:1.42}

  /* Mobile chapter marker becomes a top rail so it never consumes content width. */
  .immersive-chapter{display:block;min-height:540px;padding-top:56px;overflow:hidden}
  .chapter-rail{
    inset:0 0 auto;
    width:100%;
    height:56px;
    padding:0 22px;
    flex-direction:row;
    justify-content:flex-start;
    gap:14px;
    background:rgba(238,242,238,.94);
  }
  .chapter-rail span,.chapter-rail b{writing-mode:horizontal-tb;white-space:nowrap}
  .chapter-rail span{font-size:9px}
  .chapter-rail i{flex:1;height:1px;width:auto;margin:0;background:linear-gradient(90deg,#0aa9a7,rgba(16,37,45,.12))}
  .chapter-rail b{font-size:9px;line-height:1.2;text-align:right}
  .chapter-rail b br{display:none}
  .chapter-copy,.chapter-copy.align-right{
    width:auto;
    max-width:none;
    margin:0;
    padding:64px 24px 92px;
    text-align:left;
  }
  .chapter-copy h2,.chapter-copy.align-right h2{max-width:100%;margin-left:0;overflow-wrap:anywhere}
  .chapter-copy>span{max-width:100%;overflow-wrap:anywhere}
}

/* ImageGen narrative set: one original visual job per chapter. */
.immersive-wafer {
  background-image:
    linear-gradient(90deg,rgba(1,12,18,.94) 0%,rgba(1,12,18,.7) 38%,rgba(1,12,18,.2) 76%,rgba(1,12,18,.42) 100%),
    url("assets/silicon-ip-panorama-v2.webp");
  background-position:center;
}
.immersive-probe {
  background-image:
    linear-gradient(270deg,rgba(1,12,18,.95) 0%,rgba(1,12,18,.76) 38%,rgba(1,12,18,.2) 76%,rgba(1,12,18,.38) 100%),
    url("assets/assurance-evidence-v1.webp");
  background-position:center;
}
.immersive-silicon {
  background-image:
    linear-gradient(90deg,rgba(1,12,18,.95) 0%,rgba(1,12,18,.72) 40%,rgba(1,12,18,.18) 78%,rgba(1,12,18,.38) 100%),
    url("assets/power-off-state-v1.webp");
  background-position:center;
}

@media(max-width:620px){
  .immersive-wafer{background-position:62% center}
  .immersive-probe{background-position:38% center}
  .immersive-silicon{background-position:70% center}
}

/* ImageGen environmental set: low-interference narrative backgrounds. */
.architecture-section {
  background:
    linear-gradient(90deg,rgba(3,19,30,.98) 0%,rgba(3,19,30,.94) 35%,rgba(3,19,30,.72) 72%,rgba(3,19,30,.6) 100%),
    url("assets/architecture-subsystem-v1.webp") center/cover no-repeat;
}
.comparison-section {
  background:
    linear-gradient(rgba(8,34,55,.82),rgba(8,34,55,.9)),
    url("assets/comparison-cell-states-v1.webp") center/cover no-repeat;
}
.evidence-section {
  background:
    linear-gradient(90deg,rgba(6,25,37,.97) 0%,#0e2a38 48%,#0e2a38 100%),
    url("assets/evidence-field-v1.webp") center/cover no-repeat;
}
.learning-section {
  background:
    linear-gradient(90deg,rgba(6,27,41,.96) 0%,rgba(6,27,41,.9) 52%,rgba(6,27,41,.58) 100%),
    url("assets/learning-path-v1.webp") center/cover no-repeat;
}
.research-launch {
  background:
    linear-gradient(90deg,rgba(5,27,42,.97) 0%,rgba(5,27,42,.9) 52%,rgba(5,27,42,.48) 100%),
    url("assets/learning-path-v1.webp") 68% center/cover no-repeat;
}
.comparison-side,.product-matrix,.learning-paths,.article-card {
  backdrop-filter:blur(10px);
}

@media(max-width:760px){
  .architecture-section{background-position:66% center}
  .comparison-section{background-position:center}
  .evidence-section{background-position:72% center}
  .learning-section,.research-launch{background-position:76% center}
}

/* Finishing environment pass: consequence, provenance and final recall. */
.applications-section {
  background:
    linear-gradient(90deg,rgba(243,247,248,.98) 0%,rgba(243,247,248,.94) 50%,rgba(243,247,248,.72) 100%),
    url("assets/applications-ecosystem-v1.webp") center/cover no-repeat;
}
.applications-section .app-card {
  background:#0e2a38;
  backdrop-filter:blur(12px);
  border-color:rgba(9,34,53,.08);
}
.sources-section {
  background:
    linear-gradient(90deg,rgba(243,247,248,.985) 0%,rgba(243,247,248,.96) 58%,rgba(243,247,248,.8) 100%),
    url("assets/evidence-field-v1.webp") 70% center/cover no-repeat;
}
.sources-section .source-list a {
  background:#0e2a38;
  backdrop-filter:blur(10px);
}
.closing-section {
  background:
    linear-gradient(90deg,rgba(3,19,30,.94) 0%,rgba(3,19,30,.84) 46%,rgba(3,19,30,.52) 100%),
    url("assets/closing-secure-boundary-v1.webp") center/cover no-repeat;
}
.closing-section::before {
  border-color:rgba(196,165,116,.14);
  box-shadow:0 0 90px rgba(176,138,91,.045) inset;
}
.closing-section > * { position:relative; z-index:1; }

/* REFINE-005: restore quiet editorial pauses between image-led sections. */
.research-launch {
  background:
    radial-gradient(circle at 78% 30%,rgba(176,138,91,.1),transparent 24%),
    linear-gradient(135deg,#061b29 0%,#092c40 58%,#061b29 100%);
}
.sources-section {
  background:
    linear-gradient(90deg,rgba(243,247,248,.98),rgba(243,247,248,.92)),
    repeating-linear-gradient(90deg,transparent 0 79px,rgba(9,34,53,.035) 80px),
    var(--paper);
}

/* Unify the transition between image-led and information-led sections. */
.architecture-section,.comparison-section,.evidence-section,.applications-section,.learning-section,.research-launch,.sources-section,.closing-section {
  box-shadow:inset 0 1px rgba(255,255,255,.07),inset 0 -1px rgba(9,34,53,.08);
}

@media(max-width:760px){
  .applications-section{background-position:72% center}
  .sources-section{background-position:76% center}
  .closing-section{background-position:66% center}
}

/* One visible keyboard-focus language across the complete hub. */
:where(a,button,input,select,textarea,[tabindex]):focus-visible {
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
.search-box:focus-within {
  border-bottom-color:var(--cyan);
  box-shadow:0 3px 0 rgba(176,138,91,.18);
}

/* Layered security case study: OpenPGP + Okta + silicon PUF. */
.identity-stack-section {
  color:var(--white);
  background:
    linear-gradient(105deg,rgba(3,19,30,.97),rgba(6,31,46,.91) 58%,rgba(3,19,30,.8)),
    url("assets/comparison-cell-states-v1.webp") center/cover no-repeat;
  box-shadow:inset 0 1px rgba(255,255,255,.08),inset 0 -1px rgba(255,255,255,.05);
}
.identity-stack-head { display:grid; grid-template-columns:1.08fr .72fr; gap:clamp(42px,7vw,105px); align-items:end; }
.identity-stack-head h2 { max-width:720px; margin:18px 0 0; font-size:inherit; line-height:1; font-weight:580; letter-spacing:.012em; }
.stack-title-premise { display:block; color:#a9c5ce; font-size:clamp(20px,1.75vw,25px); line-height:1.45; font-weight:520; letter-spacing:.045em; }
.stack-title-resolution { display:block; max-width:680px; margin-top:12px; padding-left:22px; border-left:2px solid var(--cyan); color:var(--white); font-size:clamp(34px,3.3vw,46px); line-height:1.38; font-weight:590; letter-spacing:.018em; }
.split-statement { line-height:1; }
.split-statement .statement-premise { display:block; color:inherit; opacity:.68; font-size:clamp(20px,.58em,25px); line-height:1.5; font-weight:520; letter-spacing:.04em; }
.split-statement .statement-resolution { display:block; max-width:720px; margin-top:.28em; padding-left:.5em; border-left:2px solid var(--cyan); color:inherit; font-size:clamp(30px,.9em,44px); line-height:1.42; font-weight:590; letter-spacing:.018em; }
.identity-stack-head > p { margin:0 0 8px; color:#b6cbd3; font-size:17px; line-height:1.9; }
.trust-layer-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:68px; }
.trust-layer-grid article { min-height:430px; padding:34px; border:1px solid rgba(255,255,255,.13); background:rgba(7,32,47,.76); backdrop-filter:blur(12px); box-shadow:0 22px 58px rgba(0,0,0,.14); }
.trust-layer-grid article.puf-layer { border-color:rgba(176,138,91,.42); background:linear-gradient(145deg,rgba(176,138,91,.13),rgba(7,32,47,.82)); }
.trust-layer-grid article > span { color:var(--cyan-2); font-size:9px; font-weight:800; letter-spacing:.15em; }
.trust-layer-grid h3 { margin:18px 0 34px; font-size:clamp(25px,2.4vw,34px); }
.trust-layer-grid p { margin:0; padding:20px 0; color:#c2d2d8; border-top:1px solid rgba(255,255,255,.1); font-size:14px; line-height:1.75; }
.trust-layer-grid p b { display:block; margin-bottom:7px; color:#fff; font-size:9px; letter-spacing:.12em; text-transform:uppercase; }
.trust-layer-grid small { display:block; margin-top:23px; padding-left:13px; color:#91aab5; border-left:2px solid var(--copper); font-size:11px; line-height:1.75; }
.enterprise-signing-case { display:grid; grid-template-columns:.34fr .66fr; gap:clamp(24px,4vw,48px); margin-top:36px; padding:24px 28px; border:1px solid rgba(196,165,116,.22); background:rgba(2,18,28,.88); backdrop-filter:blur(14px); border-radius:8px; }
.case-intro > span { color:var(--copper-soft); font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:700; letter-spacing:.12em; }
.case-intro h3 { margin:8px 0 10px; font-size:clamp(20px,2.2vw,26px); line-height:1.3; color:#ffffff; }
.case-intro p { margin:0; color:#cbd5e1; font-size:14.5px; line-height:1.65; }
.case-flow { display:grid; grid-template-columns:1fr auto 1fr auto 1fr; gap:16px; align-items:center; }
.case-flow article { min-height:125px; padding:16px 20px; border:1px solid rgba(255,255,255,.14); background:rgba(255,255,255,.045); border-radius:6px; display:flex; flex-direction:column; justify-content:center; }
.case-flow article i { display:grid; place-items:center; width:28px; height:28px; color:var(--navy-950); background:var(--cyan); border-radius:50%; font-size:11px; font-style:normal; font-weight:800; margin-bottom:8px; }
.case-flow article b { display:block; margin:0 0 6px; color:var(--cyan-2); font-family:'IBM Plex Mono',monospace; font-size:13.5px; font-weight:700; letter-spacing:.08em; }
.case-flow article strong { display:block; margin:0 0 6px; font-size:15px; font-weight:600; line-height:1.35; color:#ffffff; }
.case-flow article small { display:block; margin:0; color:#94a3b8; font-size:12px; letter-spacing:.04em; line-height:1.4; }
.case-flow > svg { width:20px; height:20px; color:var(--cyan-2); }
.threat-coverage { display:grid; grid-template-columns:repeat(3,1fr) 1.25fr; margin-top:18px; border:1px solid rgba(255,255,255,.14); background:rgba(4,23,34,.82); border-radius:8px; overflow:hidden; }
.threat-coverage > div { min-height:100px; padding:16px 20px; border-right:1px solid rgba(255,255,255,.1); display:flex; flex-direction:column; justify-content:center; }
.threat-coverage > div:last-child { border-right:0; }
.threat-coverage span { color:#7dd3fc; font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:800; letter-spacing:.1em; display:block; }
.threat-coverage b { display:block; margin:6px 0; color:#ffffff; font-size:15px; font-weight:700; }
.threat-coverage small { color:#cbd5e1; font-size:12.5px; line-height:1.45; display:block; }
.threat-coverage .coverage-limit { border-top:2px solid var(--copper); background:rgba(199,138,75,.07); }
.threat-coverage .coverage-limit b { color:var(--copper-soft); }
.stack-evidence-note { display:grid; grid-template-columns:auto 1fr; gap:18px; align-items:start; margin-top:18px; padding:16px 22px; border-left:3px solid var(--copper); background:rgba(255,255,255,.05); border-radius:4px; }
.stack-evidence-note b { color:#fdba74; font-family:'IBM Plex Mono',monospace; font-size:11.5px; font-weight:800; letter-spacing:.1em; }
.stack-evidence-note p { margin:0; color:#cbd5e1; font-size:14px; line-height:1.65; }
.stack-sources { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-top:16px; }
.stack-sources a { min-height:auto; padding:14px 18px; color:#d8e5e9; background:rgba(3,19,30,.9); border:1px solid rgba(255,255,255,.1); border-radius:6px; transition:background .2s,border-color .2s; }
.stack-sources a:hover { background:rgba(176,138,91,.12); border-color:rgba(196,165,116,.4); }
.stack-sources span { display:block; margin-bottom:6px; color:#7dd3fc; font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:800; letter-spacing:.1em; }
.stack-sources b { font-size:13px; font-weight:600; color:#ffffff; line-height:1.4; display:block; }


@media(max-width:980px){
  .identity-stack-head,.enterprise-signing-case{grid-template-columns:1fr}
  .trust-layer-grid{grid-template-columns:1fr}
  .trust-layer-grid article{min-height:0}
  .threat-coverage{grid-template-columns:repeat(2,1fr)}
  .threat-coverage>div:nth-child(2){border-right:0}
  .threat-coverage>div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.1)}
  .stack-sources{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:620px){
  .identity-stack-head h2{line-height:1}
  .stack-title-premise{font-size:19px;line-height:1.5;letter-spacing:.035em}
  .stack-title-resolution{margin-top:10px;padding-left:16px;font-size:clamp(27px,7.7vw,31px);line-height:1.5;letter-spacing:.02em}
  .split-statement{width:min(100%,calc(100vw - 48px));max-width:calc(100vw - 48px);min-width:0}
  .chapter-copy .split-statement{width:calc(100vw - 48px);max-width:calc(100vw - 48px)}
  body[data-language="zh"] .chapter-copy h2{word-break:normal;overflow-wrap:anywhere}
  .split-statement .statement-premise{font-size:18px;line-height:1.5}
  .split-statement .statement-resolution{max-width:100%;margin-top:.3em;padding-left:14px;font-size:clamp(28px,7.7vw,31px);line-height:1.48}
  body[data-language="zh"] #identity-stack-title{word-break:normal;overflow-wrap:anywhere}
  .identity-stack-head>p{font-size:15px}
  .trust-layer-grid{margin-top:46px}
  .trust-layer-grid article{padding:27px 23px}
  .enterprise-signing-case{margin-top:54px;padding:27px 22px}
  .case-flow{grid-template-columns:1fr}
  .case-flow>svg{transform:rotate(90deg);margin:auto}
  .case-flow article{min-height:170px}
  .threat-coverage,.stack-sources{grid-template-columns:1fr}
  .threat-coverage>div{min-height:0;border-right:0;border-bottom:1px solid rgba(255,255,255,.1)}
  .stack-evidence-note{grid-template-columns:1fr;padding:22px}
}

/* REFINE-008: keep architecture controls and changing content in one mobile viewport. */
@media(max-width:620px){
  .architecture-canvas{margin-left:0;margin-right:0;padding:12px}
  .architecture-flow{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
  .architecture-flow>i{display:none}
  .arch-node{display:grid;grid-template-columns:1fr;grid-template-rows:auto 1fr;justify-items:center;min-height:68px;aspect-ratio:auto;gap:4px;padding:9px 4px 7px;transform:none}
  .arch-node:hover,.arch-node.active{transform:none}
  .arch-node>span{position:static;grid-row:1;font-size:8px;line-height:1}
  .arch-node svg{display:none}
  .arch-node b{grid-row:2;align-self:center;margin:0;font-size:8px;line-height:1.25;letter-spacing:.035em}
  .arch-node small{display:none}
  .arch-detail{grid-template-columns:54px minmax(0,1fr);gap:14px;min-height:0;margin-top:10px;padding:16px}
  .detail-visual{min-height:0;height:100%;border:0;background:rgba(176,138,91,.07)}
  .detail-visual::after,.detail-visual span{display:none}
  .detail-visual svg{width:34px;height:34px;filter:none}
  .arch-detail small{font-size:8px}
  .arch-detail h3{margin:5px 0 7px;font-size:18px;line-height:1.35}
  .arch-detail p{margin:0;font-size:13px;line-height:1.62}
  .arch-detail ul{grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:11px}
  .arch-detail li{padding-top:7px;border-top:1px solid var(--line-dark);font-size:9px;line-height:1.4}
  .arch-detail li::before{width:4px;height:4px;margin-right:5px}
  .architecture-footer{display:none}
}

/* REFINE-009: mobile executive-reader density without reducing body legibility. */
@media(max-width:620px){
  :root{--section-pad:56px;--mobile-panel-gap:12px;--mobile-panel-width:min(290px,84vw)}
  .hero{min-height:760px}
  .section{padding-top:56px;padding-bottom:56px}
  .immersive-chapter{min-height:460px}
  .closing-section{min-height:520px}
  .section-heading,.section-heading.compact,.evidence-title,.learning-head{margin-bottom:34px}
  .section-lede{margin-top:18px}

  .thesis-principles,.evidence-numbers,.application-grid,.article-grid,.trust-layer-grid{
    display:grid;
    grid-template-columns:none;
    grid-auto-flow:column;
    grid-auto-columns:var(--mobile-panel-width);
    gap:var(--mobile-panel-gap);
    overflow-x:auto;
    overscroll-behavior-inline:contain;
    scroll-snap-type:x proximity;
    scrollbar-width:none;
  }
  .thesis-principles::-webkit-scrollbar,.evidence-numbers::-webkit-scrollbar,.application-grid::-webkit-scrollbar,.article-grid::-webkit-scrollbar,.trust-layer-grid::-webkit-scrollbar,.attack-journey::-webkit-scrollbar,.ownership-flow::-webkit-scrollbar,.case-flow::-webkit-scrollbar{display:none}
  .thesis-principles>* ,.evidence-numbers>* ,.application-grid>* ,.article-grid>* ,.trust-layer-grid>*{scroll-snap-align:start}

  .thesis-principles{margin-top:38px}
  .thesis-principles article{min-height:220px;padding:24px}
  .thesis-principles h3{margin-top:18px;font-size:19px}

  .attack-journey{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:var(--mobile-panel-width);gap:var(--mobile-panel-gap);margin-top:38px;padding:12px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x proximity;scrollbar-width:none}
  .attack-journey article{display:block;min-height:235px;padding:22px;scroll-snap-align:start}
  .attack-journey .journey-icon{width:44px;height:44px;margin:0 0 24px}
  .attack-journey .journey-arrow{display:none}
  .case-note{margin-top:12px;padding:22px}

  .evidence-numbers{margin-top:38px}
  .evidence-numbers article{min-height:210px;padding:24px}
  .evidence-numbers strong{margin-top:24px;font-size:40px}
  .application-grid{margin-top:38px}
  .app-card{min-height:290px;padding:26px 24px}

  .ownership-flow{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:72%;gap:10px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x proximity;scrollbar-width:none}
  .ownership-flow>i{display:none}
  .ownership-flow div{min-height:112px;padding:18px 14px;scroll-snap-align:start}
  .accountability-section h2{margin:32px auto 38px}

  .learning-section{padding-top:56px;padding-bottom:56px}
  .learning-paths{padding:24px}
  .library,.article-grid{min-width:0;max-width:100%}
  .article-grid{width:100%;margin-top:10px}
  .article-card{min-height:220px;padding:24px}
  .article-card h3{margin-top:26px}

  .trust-layer-grid{margin-top:38px}
  .trust-layer-grid article{min-height:390px;padding:25px 22px}
  .trust-layer-grid h3{margin:14px 0 24px}
  .trust-layer-grid p{padding:15px 0;font-size:13px}
  .enterprise-signing-case{margin-top:38px;padding:24px 20px}
  .case-flow{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:82%;gap:10px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x proximity;scrollbar-width:none}
  .case-flow>svg{display:none}
  .case-flow article{min-height:180px;padding:20px;scroll-snap-align:start}
  .case-flow article b{margin-top:22px}
  .threat-coverage{grid-template-columns:repeat(2,minmax(0,1fr))}
  .threat-coverage>div{padding:18px 14px}
  .threat-coverage b{margin:12px 0 6px;font-size:13px}
  .stack-sources{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stack-sources a{min-height:90px;padding:16px}
  .stack-evidence-note{margin-top:24px;padding:20px}

  .source-list a{min-height:70px;padding-top:14px;padding-bottom:14px}
  .research-launch{padding-top:56px;padding-bottom:56px}
}

/* REFINE-010: mobile containment and no-swipe architecture folders. */
@media(max-width:620px){
  html,body,main{max-width:100%;overflow-x:clip}
  body[data-language="zh"] h1,body[data-language="zh"] h2{word-break:normal;overflow-wrap:anywhere}
  :where(.section,.thesis-section,.thesis-grid,.thesis-grid>*,.architecture-section,.architecture-intro,.architecture-canvas,.architecture-flow,.arch-detail,.arch-detail>*,.immersive-chapter,.chapter-copy,.chapter-copy>*){min-width:0;max-width:100%}
  .section{width:100%}
  .thesis-grid,.thesis-copy{width:100%}
  .thesis-grid h2{max-width:100%;overflow-wrap:anywhere}
  .thesis-principles,.attack-journey,.evidence-numbers,.application-grid,.article-grid,.trust-layer-grid,.ownership-flow,.case-flow{width:100%;max-width:100%}

  .immersive-chapter{width:100%;max-width:100%;contain:inline-size}
  .chapter-rail{max-width:100%;box-sizing:border-box}
  .chapter-rail span,.chapter-rail b{min-width:0;max-width:42%;overflow:hidden;text-overflow:ellipsis}
  .chapter-copy,.chapter-copy.align-right{width:100%;max-width:100%;box-sizing:border-box;margin:0}
  .chapter-copy h2,.chapter-copy.align-right h2,.chapter-copy>span{width:100%;max-width:100%;word-break:normal;overflow-wrap:anywhere}
  .chapter-copy .split-statement{width:100%;max-width:100%}

  .architecture-section{grid-template-columns:minmax(0,1fr)}
  .architecture-canvas{width:100%;max-width:100%;padding:10px}
  .architecture-flow{display:grid;grid-template-columns:minmax(0,1fr);gap:0;width:100%;padding:4px 0 0}
  .architecture-flow>i{display:none}
  .arch-node{
    display:grid;grid-template-columns:34px 30px minmax(0,1fr) auto;grid-template-rows:1fr;
    align-items:center;justify-items:start;gap:8px;width:100%;min-height:44px;
    margin-top:-1px;padding:8px 12px;aspect-ratio:auto;transform:none;text-align:left;
    box-sizing:border-box;border-color:rgba(196,165,116,.17);background:rgba(11,43,62,.62);box-shadow:none
  }
  .arch-node:nth-of-type(2){margin-left:6px;width:calc(100% - 6px)}
  .arch-node:nth-of-type(3){margin-left:12px;width:calc(100% - 12px)}
  .arch-node:nth-of-type(4){margin-left:18px;width:calc(100% - 18px)}
  .arch-node:hover,.arch-node.active{z-index:1;transform:none;border-color:var(--cyan);background:rgba(176,138,91,.14);box-shadow:inset 3px 0 0 var(--cyan)}
  .arch-node>span{position:static;grid-column:1;color:var(--cyan-2);font-size:9px;line-height:1}
  .arch-node svg{display:block;grid-column:2;width:22px;height:22px}
  .arch-node b{grid-column:3;margin:0;font-size:10px;line-height:1.25;text-align:left;letter-spacing:.055em}
  .arch-node small{display:block;grid-column:4;font-size:7px;line-height:1;letter-spacing:.1em}
  .arch-detail{grid-template-columns:42px minmax(0,1fr);gap:12px;width:100%;min-height:0;margin-top:10px;padding:16px}
  .arch-detail p{font-size:15px;line-height:1.68;overflow-wrap:anywhere}
  .arch-detail h3{font-size:18px;line-height:1.38;overflow-wrap:anywhere}
  .arch-detail ul{grid-template-columns:1fr;gap:5px}
  .arch-detail li{font-size:12px}
}

/* REFINE-011: authoritative whole-site density rhythm. */
:root{--density-section:clamp(68px,6.4vw,88px);--density-gutter:clamp(24px,5vw,72px);--density-panel:clamp(20px,2.5vw,34px);--density-gap:clamp(12px,1.8vw,22px)}
.section{padding-top:var(--density-section);padding-bottom:var(--density-section)}
.section-heading,.section-heading.compact,.evidence-title,.learning-head{margin-bottom:clamp(32px,4vw,54px)}
.hero{min-height:min(760px,calc(100svh - 70px))}
.immersive-chapter{min-height:clamp(500px,56vw,650px)}
.closing-section{min-height:clamp(520px,60vw,680px)}
.thesis-principles,.evidence-numbers,.application-grid,.article-grid,.trust-layer-grid{gap:var(--density-gap)}
.thesis-principles{margin-top:clamp(42px,5vw,64px)}
.thesis-principles article,.evidence-numbers article,.app-card,.article-card{min-height:0;padding:var(--density-panel)}
.attack-journey,.lifecycle-track,.enterprise-signing-case{padding:var(--density-panel)}
.source-list a{min-height:0;padding-top:16px;padding-bottom:16px}

@media(max-width:620px){
  :root{--density-section:46px;--density-gutter:20px;--density-panel:20px;--density-gap:10px;--section-pad:46px}
  .hero{min-height:640px}
  .section{padding-top:var(--density-section);padding-bottom:var(--density-section)}
  .immersive-chapter{min-height:420px}
  .closing-section{min-height:460px}
  .section-heading,.section-heading.compact,.evidence-title,.learning-head{margin-bottom:28px}
  .thesis-principles,.attack-journey,.evidence-numbers,.application-grid,.article-grid,.trust-layer-grid,.ownership-flow,.case-flow{grid-auto-flow:row;grid-auto-columns:auto;overflow:visible;scroll-snap-type:none}
  .thesis-principles,.evidence-numbers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .thesis-principles article:last-child,.evidence-numbers article:last-child:nth-child(odd){grid-column:1/-1}
  .thesis-principles{margin-top:28px}
  .thesis-principles article{min-height:0;padding:18px}
  .thesis-principles svg{width:34px;height:34px}
  .thesis-principles h3{margin:14px 0 8px;font-size:18px}
  .thesis-principles p{font-size:15px;line-height:1.62}
  .attack-journey{grid-template-columns:1fr;margin-top:28px;padding:8px}
  .attack-journey article{display:grid;grid-template-columns:42px minmax(0,1fr);gap:6px 14px;min-height:0;padding:16px}
  .attack-journey .journey-icon{grid-row:1/4;width:40px;height:40px;margin:0}
  .attack-journey article :is(h3,p){grid-column:2;margin-top:0}
  .evidence-numbers{margin-top:28px}
  .evidence-numbers article{min-height:0;padding:18px}
  .evidence-numbers strong{margin-top:14px;font-size:34px}
  .application-grid,.article-grid,.trust-layer-grid,.case-flow{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:min(300px,82vw);overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x proximity}
  .application-grid>*,.article-grid>*,.trust-layer-grid>*,.case-flow>*{scroll-snap-align:start}
  .app-card,.article-card{min-height:0;padding:20px}
  .trust-layer-grid{margin-top:28px}
  .trust-layer-grid article{min-height:0;padding:20px}
  .trust-layer-grid p{padding:11px 0;font-size:15px}
  .case-flow article{min-height:0;padding:18px}
  .ownership-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ownership-flow div{min-height:0;padding:15px 12px}
  .learning-paths,.enterprise-signing-case{padding:20px}
  .source-list a{min-height:0;padding-top:12px;padding-bottom:12px}
  .case-note p,.case-intro p,.stack-evidence-note p,.state-hero p,.app-card p,.article-card p,.trust-layer-grid p,.case-flow p,.attack-journey article p,.evidence-principle{font-size:15px;line-height:1.65}
}

/* REFINE-012: governed evidence, sans hierarchy and no swipe-only primary content. */
:root{
  --muted:#536c7b;
  --copper:#c78a4b;
  --copper-soft:#e9b77f;
  --danger:#bc5a50;
}
.skip-link{position:fixed;z-index:1000;left:14px;top:10px;padding:11px 15px;color:#03131e;background:#c4a574;border:2px solid #03131e;border-radius:4px;font-size:14px;font-weight:800;transform:translateY(-160%);transition:transform .18s ease}
.skip-link:focus{transform:translateY(0)}
main section[id]{scroll-margin-top:24px}
h1 em,h2 em{font-family:var(--sans-zh);font-style:normal;font-weight:inherit}
.hero-proof{flex-wrap:wrap}
.hero-proof-source{flex:0 0 100%;margin-top:5px;color:#a9bec7;font-size:9px;line-height:1.5;letter-spacing:.08em}
.attack-journey{grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;padding:1px;background:#0a2230}
.attack-journey article{min-height:300px;padding:30px;background:#0e2a38}
.attack-journey .journey-icon{width:58px;height:58px;margin-bottom:22px}
.attack-journey .journey-icon svg{width:28px;height:28px}
.attack-journey p{max-width:none}
.portfolio-scope{margin:13px 0 24px;color:#536c7b;font-size:10px;font-weight:750;line-height:1.55;letter-spacing:.08em}
.case-note b,.evidence-ribbon b{color:#8a5525}
.learning-paths li{display:block;padding:0}
.learning-paths li>a{display:grid;grid-template-columns:35px minmax(0,1fr) auto;gap:14px;align-items:start;padding:15px 4px;color:inherit;text-decoration:none}
.learning-paths li>a:hover .lesson-copy strong{color:var(--cyan-2)}
.article-card{text-decoration:none}

@media(max-width:680px){
  .signal-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;overflow:visible;padding:var(--hub-keepout,24px);background:#173343}
  .signal-strip i{display:none}
  .signal-strip span{min-width:0;min-height:54px;padding:12px 14px;background:var(--navy-950);white-space:normal;line-height:1.35}
  .signal-strip svg{flex:0 0 auto;width:21px;height:21px}
  .hero-proof-source{grid-column:1/-1;margin-top:2px;font-size:8px}
  .attack-journey{grid-template-columns:1fr;gap:1px;padding:1px;overflow:visible}
  .attack-journey article{display:grid;grid-template-columns:50px minmax(0,1fr);column-gap:16px;min-height:0;padding:20px}
  .attack-journey .journey-icon{grid-row:1/4;width:46px;height:46px;margin:0}
  .attack-journey h3{margin:7px 0 5px}
  .application-grid,.article-grid,.trust-layer-grid,.case-flow{grid-template-columns:1fr;grid-auto-flow:row;grid-auto-columns:auto;overflow:visible;scroll-snap-type:none}
  .application-grid>* ,.article-grid>* ,.trust-layer-grid>* ,.case-flow>*{scroll-snap-align:none}
  .app-card{display:grid;grid-template-columns:42px minmax(0,1fr);column-gap:14px;min-height:0;padding:20px}
  .app-card>svg{grid-row:1/4;width:34px;height:34px}
  .app-card>span{margin:0}
  .app-card h3{margin:6px 0;font-size:20px;line-height:1.38}
  .app-card p{margin:0}
  .article-card{min-height:0;padding:20px}
  .trust-layer-grid article{min-height:0}
  .case-flow>svg{display:none}
  .case-flow article{min-height:0}
}


/* ==========================================================================
   REVIEWER 3 FIXES: CJK TYPOGRAPHY, POWER-OFF LAB & OVERFLOW WRAP
   ========================================================================== */

/* 1. 廢除 10.5ch 限制，保護繁中斷詞與平衡 */
@media (max-width: 720px) {
  body[data-language="zh"] h1,
  body[data-language="zh"] h2,
  body[data-language="zh"] h3 {
    letter-spacing: -0.015em !important;
    line-break: strict !important;
    word-break: normal !important;
    overflow-wrap: break-word !important;
  }
  .hero-content h1 {
    max-width: 100% !important;
    line-height: 1.22 !important;
    text-wrap: balance !important;
  }
}

/* 2. 沉浸章節標題巨型字級收斂 (原 112px 降為 68px 安全邊界，根除「清楚」「驗證」孤字) */
.chapter-copy h2 {
  font-size: clamp(34px, 4.6vw, 64px) !important;
  line-height: 1.18 !important;
  letter-spacing: -.03em !important;
  text-wrap: balance !important;
}

/* 3. Split statement 邊界計算與孤字保護 */
.split-statement .statement-resolution {
  max-width: 100% !important;
  font-size: clamp(24px, 0.85em, 36px) !important;
  line-height: 1.35 !important;
  text-wrap: balance !important;
}

/* 4. Power-off Lab 晶片畫布疊字防護 */
.chip-frame {
  display: flex !important;
  flex-direction: column !important;
}
.cipher-label {
  margin-top: auto !important;
  padding-top: 14px !important;
}
@media (max-width: 620px) {
  .key-presence {
    position: static !important;
    margin-top: 10px !important;
    padding-top: 10px !important;
    border-top: 1px dashed rgba(196, 165, 116, 0.2) !important;
    justify-content: flex-start !important;
  }
  .key-presence span b {
    font-size: 10px !important;
    word-break: break-word !important;
  }
}


/* =========================================================
   全站語系切換最上層治理規範：英文為第一預設 (English as Default)
   ========================================================= */
[data-lang="zh"] {
  display: none !important;
}
[data-lang="en"] {
  display: revert;
}

html[data-language="zh"] [data-lang="zh"],
body[data-language="zh"] [data-lang="zh"] {
  display: revert !important;
}
html[data-language="zh"] [data-lang="en"],
body[data-language="zh"] [data-lang="en"] {
  display: none !important;
}