html{scroll-behavior:smooth;scroll-padding-top:24px;scroll-padding-bottom:112px}
body{overflow-wrap:break-word;padding-bottom:104px}
figure{margin:0}
button,a{-webkit-tap-highlight-color:transparent}
.page-width{width:min(100%,1600px);margin-inline:auto;padding-inline:var(--lt-page-gutter)}
.skip-link{position:fixed;left:-10000px;top:12px;background:var(--lt-color-ink);color:var(--lt-color-milk);padding:14px;z-index:200}
.skip-link:focus{left:16px}
.case-header{max-width:1600px;margin:auto;position:relative;top:auto;display:flex}
.case-header .lt-header__note{font-size:10px;margin-inline:auto}
.case-header .lt-header__brand{flex-shrink:0}
.case-header .lt-header__brand img,.case-footer .lt-header__brand img{box-sizing:content-box;padding:9px}
.case-header .lt-header__brand{gap:6px}
.case-header .lt-header__right{gap:24px;margin-left:auto}
.case-hero{display:grid;grid-template-columns:42% 58%;padding-top:24px;padding-bottom:48px;min-height:740px}
.hero-copy{padding:0 40px 0 0;display:flex;flex-direction:column;align-items:flex-start}
.back-link{font-size:13px;border-bottom:0;min-height:44px;display:inline-flex;align-items:center}
.hero-heading{margin:54px 0 24px}
.case-eyebrow{font:11px/1.5 var(--lt-font-utility);letter-spacing:.09em;text-transform:uppercase;margin:0 0 24px}
.hero-heading .case-eyebrow{margin-bottom:20px}
.hero-heading h1{font-size:clamp(76px,7.5vw,116px);line-height:.88;letter-spacing:-.06em;font-weight:800}
.hero-subtitle{margin:24px 0 0;font-size:clamp(26px,2.65vw,42px);line-height:1.07;letter-spacing:-.04em;font-weight:600}
.hero-subtitle em,h2 em{font-family:var(--lt-font-editorial);font-weight:400;color:var(--lt-color-cherry)}
.hero-lead{max-width:440px;font-size:16px;line-height:1.6;margin:0 0 16px}
.hero-copy .lt-link{gap:30px;font-weight:600}
.hero-role{margin:auto 0 0;padding-top:30px;font:10px/1.6 var(--lt-font-utility);text-transform:uppercase;letter-spacing:.06em}
.hero-images{--hero-image-height:584px;display:grid;grid-template-columns:1fr 1fr;gap:8px;align-items:start;min-width:0}
.hero-images .media-link{height:var(--hero-image-height)}
.hero-images img{width:100%;height:100%;object-fit:cover}

.hero-ring img{object-position:center 56%}

.hero-model img{object-position:52% center}
.hero-images figcaption{font:10px/1.5 var(--lt-font-utility);padding-top:10px;text-transform:uppercase;letter-spacing:.05em}
.media-link{display:block;position:relative;cursor:zoom-in;border:0;background:transparent;overflow:hidden}
.media-link:hover{background:transparent}
.media-zoom{position:absolute;bottom:12px;right:12px;width:32px;height:32px;display:grid;place-items:center;background:var(--lt-color-milk);color:var(--lt-color-ink);font:24px/1 var(--lt-font-display)}
.media-link:hover .media-zoom{background:var(--lt-color-butter)}
.case-facts{display:grid;grid-template-columns:1.35fr 1fr 1fr;border-top:var(--lt-border);border-bottom:var(--lt-border);padding-block:32px;gap:36px}
.case-fact{display:flex;align-items:center;gap:24px}
.case-fact:not(:first-child){border-left:var(--lt-border);padding-left:36px}
.case-fact strong{font-size:clamp(40px,4.2vw,64px);font-weight:600;letter-spacing:-.05em;line-height:1;white-space:nowrap}
.case-fact p{font-size:12px;line-height:1.5;max-width:210px;margin:0}





.case-section{padding-block:96px}
.chapter-heading{display:grid;grid-template-columns:25% 1fr;gap:20px;margin-bottom:48px}
.chapter-heading .case-eyebrow{padding-top:8px}
h2{font-size:clamp(36px,3.7vw,56px);line-height:1.02;letter-spacing:-.045em;max-width:850px}
h3{font-size:clamp(24px,2.4vw,36px);line-height:1.08;letter-spacing:-.035em}
.prose{font-size:17px;line-height:1.65;max-width:680px}
.prose p{margin:0 0 20px}
.prose p:last-child{margin-bottom:0}
.story-intro{display:grid;grid-template-columns:36% 1fr;gap:7%;align-items:center}
.story-intro .prose{font-family:var(--lt-font-editorial);font-size:21px;line-height:1.6}
.case-figure img{width:100%;height:auto}
.case-figure figcaption{font-size:12px;line-height:1.5;margin-top:12px;max-width:680px;color:var(--lt-color-muted)}
.diorama .media-link{background:#fff}
.pilot-layout{display:grid;grid-template-columns:36% 1fr;gap:7%;margin-top:88px;align-items:center}
.pilot-copy h3{margin-bottom:24px}
.pilot-categories{display:flex;gap:8px;margin-top:28px}
.pilot-categories span{padding:8px 14px;background:var(--lt-color-sky);font-size:12px}
.diagram .media-link{border:var(--lt-border)}
.generation-section{background:var(--lt-color-tint)}
.generation-layout{display:grid;grid-template-columns:42% 1fr;gap:8%}
.earring-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.earring-pair .media-link{height:440px;background:#fff}
.earring-pair img{height:100%;object-fit:contain}
.earring-pair .case-figure{margin-top:0}
.operation-list{margin:36px 0 0;max-width:480px}
.operation-list>div{display:grid;grid-template-columns:46% 1fr;border-top:var(--lt-border);padding:14px 0;gap:12px}
.operation-list dt{font-size:15px;font-weight:600}
.operation-list dd{font-size:13px;margin:0}
.quality-layout{display:grid;grid-template-columns:36% 1fr;gap:7%;align-items:center}
.quality-threshold{margin-top:36px;display:flex;gap:24px;align-items:center;border-top:var(--lt-border);padding-top:24px}
.quality-threshold strong{font-size:64px;line-height:1;letter-spacing:-.06em;font-weight:500}
.quality-threshold p{font-size:12px;margin:0}
.production-layout{display:grid;grid-template-columns:1fr 1fr;gap:9%;margin-top:96px;padding-top:64px;border-top:var(--lt-border)}
.production-layout h3{margin-bottom:24px;max-width:540px}
.prompt-parts{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:28px;font-size:12px}
.prompt-parts span{background:var(--lt-color-sky);padding:10px}
.prompt-parts b{font-size:16px;font-weight:400}
.categories{display:grid;grid-template-columns:1fr .7fr;gap:24px;align-items:start}
.categories h3{font-size:30px}
.categories .prose{font-size:15px}
.categories .case-figure{margin-top:44px}
.category-line{font-size:12px;border-top:var(--lt-border);padding-top:18px;margin-top:24px}
.ring-section{background:var(--lt-color-ink);color:var(--lt-color-milk)}
.ring-section h2,.ring-section h3{color:inherit}
.ring-section .case-figure figcaption{color:rgb(246 244 237 / 76%)}
.ring-intro{margin-left:calc(25% + 20px);max-width:790px;font-size:18px}
.ring-comparison{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:48px}
.frame-label{font:11px/1.5 var(--lt-font-utility);letter-spacing:.04em;min-height:44px;margin:0;padding:14px 0;border-top:1px solid rgb(246 244 237 / 30%)}
.frame-label--reject{border-top-color:var(--lt-color-cherry)}
.frame-label--accept{border-top-color:var(--lt-color-sky)}
.step-context{font-size:12px;color:rgb(246 244 237 / 76%)}
.step-context p{margin:0 0 16px}
.comparison-step{display:grid;grid-template-rows:subgrid;grid-row:span 3;row-gap:0}
.ring-comparison .media-link{height:440px;background:#fff}
.ring-comparison img{height:100%;object-fit:contain}
.verdict-layout{display:grid;grid-template-columns:1.5fr .65fr;gap:10%;max-width:1170px;margin:80px auto 0;align-items:start}
.verdict-layout h3{margin-bottom:28px}
.verdict-scores{display:flex;gap:64px;margin-bottom:28px}
.verdict-scores strong{display:block;font-size:52px;line-height:1.1;letter-spacing:-.04em;font-weight:500}
.verdict-scores span{display:block;font-size:12px;margin-top:8px}
.telegram-figure .media-link{max-width:320px;margin:auto}
.telegram-figure img{height:auto;width:100%}
.retry-note{margin-top:32px;padding:24px 28px;background:var(--lt-color-sky);color:var(--lt-color-ink);font:20px/1.5 var(--lt-font-editorial)}
.retry-note p{margin:0}
.gallery-lead{max-width:630px;margin:-16px 0 48px calc(25% + 20px);font-size:17px;line-height:1.6}
.gallery-group{display:flex;align-items:baseline;gap:32px;margin:48px 0 24px;border-top:var(--lt-border);padding-top:24px}
.gallery-group h3{font-size:24px}
.gallery-group p{font-size:12px;margin:0}
.gallery-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.gallery-figure .media-link,.gallery-figure video{aspect-ratio:1536/2752;display:block;width:100%;background:#fff}
.gallery-figure img{width:100%;height:100%;object-fit:cover}
.gallery-figure--product img,.gallery-figure--source img{object-fit:contain}
.gallery-figure video{height:auto;object-fit:contain;background:var(--lt-color-ink)}
.gallery-figure figcaption{font-size:12px;line-height:1.5;margin-top:14px}
.gallery-figure figcaption>span{display:block;font:10px/1.5 var(--lt-font-utility);letter-spacing:.04em;text-transform:uppercase;margin-bottom:4px;color:var(--lt-color-muted)}
.video-fallback{display:inline-block;margin-top:8px;font-size:12px}
.result-section{background:var(--lt-color-tint)}
.result-heading{display:grid;grid-template-columns:1.1fr 1fr;gap:7%;align-items:center}
.result-heading h2{font-size:clamp(40px,4.5vw,68px)}
.result-split{display:flex;gap:32px;margin:32px 0;font-size:15px}
.result-split strong{font-size:28px;font-weight:500;letter-spacing:-.04em}
.result-heading .prose{font-size:16px;max-width:600px}
.result-diorama img{width:100%;height:auto}
.case-stack{display:grid;grid-template-columns:25% 1fr;gap:20px;border-top:var(--lt-border);padding-top:32px;margin-top:56px}
.case-stack h3{font-size:18px;letter-spacing:-.02em;padding-top:7px}
.case-stack ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.case-stack li{font-size:12px;padding:8px 12px;border:var(--lt-border)}
.case-next{display:grid;grid-template-columns:1.2fr 1fr;gap:10%;padding-block:96px}
.case-next>div:last-child{align-self:end;max-width:430px}
.case-next p:not(.case-eyebrow){font-size:17px;line-height:1.6;margin:0 0 24px}
.case-footer{display:flex;justify-content:space-between;align-items:center;border-top:var(--lt-border);padding-block:24px;gap:16px}
.case-footer .lt-header__brand{font-size:16px;gap:4px}
.case-footer p{font:10px/1.5 var(--lt-font-utility)}
.lightbox{width:min(1400px,96vw);max-width:none;height:min(960px,96dvh);max-height:none;padding:0;border:0;background:var(--lt-color-milk);color:var(--lt-color-ink);overflow:hidden}
.lightbox::backdrop{background:rgb(0 0 0 / 88%)}
.lightbox[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto}
.lightbox-bar{display:flex;align-items:center;gap:24px;justify-content:flex-end;padding:12px 20px;border-bottom:var(--lt-border);font-size:13px}
.lightbox-bar>p{margin:0 auto 0 0;white-space:nowrap}
.lightbox button{cursor:pointer;border:var(--lt-border);background:transparent;color:inherit;min-width:44px;min-height:44px}
.lightbox button:hover{background:var(--lt-color-butter)}


.lightbox-stage{display:grid;grid-template-columns:48px minmax(0,1fr) 48px;gap:12px;padding:16px;align-items:center;min-height:0}
.lightbox-stage img{width:100%;height:100%;object-fit:contain;min-height:0}
.lightbox-stage button{font-size:24px}
#lightbox-caption{margin:0;padding:14px 24px 20px;font-size:13px;line-height:1.5;text-align:center}
html.has-lightbox{overflow:hidden}

/* The index stays within thumb reach and opens above its trigger. */
.chapter-navigation {
  position: fixed;
  right: max(24px, calc((100vw - 1600px) / 2 + 32px));
  bottom: 24px;
  width: 300px;
  z-index: 20;
}
.chapter-menu { position: relative; }
.chapter-menu summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 68px;
  padding: 12px 20px;
  background: var(--lt-color-ink);
  color: var(--lt-color-milk);
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--lt-color-milk);
}
.chapter-menu summary::-webkit-details-marker { display: none; }
.chapter-menu__text { display: grid; gap: 4px; min-width: 0; }
.chapter-menu__label { font-size: 13px; font-weight: 600; line-height: 1.3; }
.chapter-menu__current { font-size: 11px; line-height: 1.4; color: rgb(246 244 237 / 76%); }
.chapter-menu__chevron {
  width: 9px;
  height: 9px;
  border-top: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
  transform: rotate(45deg);
  flex-shrink: 0;
}
.chapter-menu[open] .chapter-menu__chevron { transform: rotate(225deg); }
.chapter-menu__panel {
  position: absolute;
  inset: auto 0 calc(100% + 8px);
  max-height: calc(100dvh - 132px);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--lt-color-milk);
  border: 1px solid var(--lt-color-ink);
  padding: 8px;
}
.chapter-menu__panel ol { list-style: none; margin: 0; padding: 0; }
.chapter-menu__panel a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.4;
  border: 0;
}
.chapter-menu__panel a[aria-current="location"] { background: var(--lt-color-sky); font-weight: 600; }
.chapter-menu__panel a:hover { background: var(--lt-color-butter); }

/* Real text keeps the verification diagram readable at every width. */
.verification-flow { margin-top: 40px; border: var(--lt-border); padding: 32px; }
.verification-flow h3 { font-size: 24px; margin-bottom: 32px; }
.verification-flow__steps {
  display: grid;
  grid-template-columns: 1fr 44px 1.5fr 44px 1fr;
  align-items: center;
  gap: 16px;
}
.flow-step { border: var(--lt-border); padding: 24px; }
.flow-step__label { display: block; font-size: 18px; font-weight: 600; line-height: 1.3; }
.flow-step p { font-size: 14px; line-height: 1.5; margin: 12px 0 0; }
.flow-step--generation { background: var(--lt-color-ink); color: var(--lt-color-milk); }
.flow-step--result { background: var(--lt-color-sky); }
.flow-step--verification { border-color: var(--lt-color-ink); }
.flow-step dl { margin: 18px 0; }
.flow-step dl>div+div { border-top: var(--lt-border); margin-top: 14px; padding-top: 14px; }
.flow-step dt { font-size: 14px; font-weight: 600; }
.flow-step dd { margin: 4px 0 0; font-size: 13px; line-height: 1.5; }
.flow-step .flow-threshold { border-top: var(--lt-border); padding-top: 14px; font-weight: 600; }
.flow-arrow { display: flex; flex-direction: column; align-items: center; font-size: 32px; line-height: 1; }
.flow-arrow small { font-size: 12px; margin-bottom: 4px; }
.flow-retry { display: flex; gap: 16px; align-items: center; border-left: 3px solid var(--lt-color-cherry); padding: 16px 20px; background: var(--lt-color-tint); margin-top: 24px; }
.flow-retry>span { font-size: 32px; line-height: 1; }
.flow-retry p { font-size: 14px; line-height: 1.5; margin: 0; }
.flow-retry strong { display: block; margin-bottom: 4px; }
.flow-feedback { font-size: 13px; line-height: 1.6; margin: 20px 0 24px; }
.flow-feedback strong { font-weight: 600; }
.flow-examples { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; border-top: var(--lt-border); padding-top: 24px; }
.flow-examples strong { display: block; font-size: 20px; font-weight: 500; }
.flow-examples span { display: block; font-size: 12px; margin-top: 4px; }
.flow-key { font-size: 12px; line-height: 1.5; margin: 20px 0 0; }
.verification-flow figcaption { margin-top: 24px; padding-top: 16px; border-top: var(--lt-border); font-size: 12px; line-height: 1.6; }
.verification-flow figcaption a { margin-left: 8px; white-space: nowrap; }

.lightbox [data-lightbox-close] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 44px;
  padding: 0 14px;
  font-size: 13px;
  line-height: 1;
  flex-shrink: 0;
  appearance: none;
}
.lightbox-close__text { display: block; }
.lightbox-close__icon { position: relative; display: block; width: 14px; height: 14px; flex-shrink: 0; }
.lightbox-close__icon::before, .lightbox-close__icon::after { content: ""; position: absolute; left: 0; top: 6px; width: 14px; height: 1.5px; background: currentColor; transform: rotate(45deg); }
.lightbox-close__icon::after { transform: rotate(-45deg); }
@media(min-width:1600px){.case-hero{min-height:810px}.hero-images{--hero-image-height:652px}.hero-heading{margin-top:72px}}
@media(max-width:1150px){.case-header .lt-header__note{display:none}.hero-copy{padding-right:24px}.case-hero{min-height:650px}.hero-images{--hero-image-height:520px}.hero-heading{margin-top:36px}.hero-lead{font-size:14px}.hero-subtitle{font-size:29px}.hero-role{font-size:9px}.case-facts{gap:20px}.case-fact{gap:18px;align-items:flex-start;flex-direction:column}.case-fact:not(:first-child){padding-left:24px}.case-fact p{max-width:240px}.case-section{padding-block:72px}.story-intro,.pilot-layout,.quality-layout{grid-template-columns:40% 1fr;gap:5%}.story-intro .prose{font-size:18px}.generation-layout{gap:5%}.earring-pair .media-link{height:340px}.production-layout{gap:6%}.categories{display:block}.categories .case-figure{width:180px;margin:24px 0 0}.ring-comparison .media-link{height:340px}.verdict-layout{gap:7%;grid-template-columns:1.5fr .8fr}}
@media(max-width:850px){.case-header .lt-header__nav{display:none}.case-hero{grid-template-columns:44% 56%;min-height:600px}.hero-heading h1{font-size:74px}.hero-heading .case-eyebrow{font-size:9px}.hero-subtitle{font-size:25px}.hero-images{--hero-image-height:420px}.hero-images figcaption{font-size:8px}.hero-heading{margin-top:28px}.hero-lead{font-size:13px}.hero-copy .lt-link{font-size:12px}.hero-role{padding-top:20px}.chapter-heading{grid-template-columns:1fr;gap:0;margin-bottom:32px}.chapter-heading .case-eyebrow{padding:0;margin-bottom:16px}.story-intro{grid-template-columns:1fr;gap:32px}.story-intro .prose{max-width:650px}.diorama{max-width:680px}.prose{font-size:16px}.pilot-layout,.quality-layout{grid-template-columns:1fr;gap:32px;margin-top:56px}.quality-layout{margin-top:0}.pilot-copy .prose{max-width:680px}.generation-layout{grid-template-columns:1fr;gap:40px}.generation-layout>div:first-child{display:grid;grid-template-columns:1fr 1fr;gap:32px}.operation-list{margin:0}.earring-pair{max-width:590px;margin:auto}.earring-pair .media-link{height:380px}.earring-pair .case-figure:last-child{margin-top:0}.production-layout{margin-top:64px;padding-top:48px}.ring-intro,.gallery-lead{margin-left:0}.ring-comparison{gap:12px}.ring-comparison .media-link{height:300px}.verdict-layout{gap:28px;grid-template-columns:1.3fr .7fr}.verdict-scores{gap:36px}.verdict-scores strong{font-size:44px}.verdict-layout .prose{font-size:15px}.retry-note{font-size:18px;padding:20px}.result-heading{grid-template-columns:1fr;gap:36px}.result-diorama{max-width:620px}.case-stack{grid-template-columns:1fr}.case-next{gap:32px}.case-next h2{font-size:38px}.case-footer p{display:none}}
@media(max-width:700px){html{scroll-padding-top:20px}.case-header{height:76px;padding-inline:7px 16px}.case-header .lt-header__brand{gap:0;font-size:14px}.case-header .lt-header__brand img{width:32px;height:32px;padding:8px}.case-header .lt-header__right{gap:0}.case-header .lt-btn{font-size:11px;padding:0 11px;min-height:42px}.case-hero{display:flex;flex-direction:column;min-height:0;padding-top:8px;padding-bottom:40px}.hero-copy{padding:0}.back-link{font-size:12px}.hero-heading{margin:22px 0 20px}.hero-heading .case-eyebrow{font-size:10px;margin-bottom:16px}.hero-heading h1{font-size:clamp(68px,18vw,104px)}.hero-subtitle{font-size:clamp(29px,7vw,42px);margin-top:20px}.hero-lead{font-size:15px;max-width:550px;margin-bottom:12px}.hero-copy .lt-link{font-size:13px}.hero-role{padding-top:0;margin:24px 0;font-size:9px}.hero-images{--hero-image-height:clamp(300px,80vw,480px);gap:8px;width:100%;margin-bottom:26px}.hero-images figcaption{font-size:8px}.case-facts{grid-template-columns:1fr 1fr;padding-block:24px;gap:20px}.case-fact{gap:10px}.case-fact:first-child{grid-column:1 / -1;flex-direction:row;align-items:center;padding-bottom:24px;border-bottom:var(--lt-border);gap:24px}.case-fact:first-child strong{font-size:52px}.case-fact:not(:first-child){padding-left:0;border-left:0}.case-fact:last-child{border-left:var(--lt-border);padding-left:24px}.case-fact p{font-size:11px}.case-fact strong{font-size:40px}.case-section{padding-block:56px}.chapter-heading{margin-bottom:28px}h2{font-size:36px;line-height:1.06}h3{font-size:28px}.story-intro .prose{font-size:18px}.pilot-layout{margin-top:48px}.case-figure figcaption{font-size:11px}.generation-layout>div:first-child{display:block}.operation-list{margin-top:28px;max-width:none}.earring-pair{gap:10px}.earring-pair .media-link{height:300px}.earring-pair img{object-fit:contain}.production-layout{grid-template-columns:1fr;gap:48px;margin-top:48px;padding-top:40px}.categories{display:grid;grid-template-columns:1fr .8fr;gap:20px}.categories .case-figure{width:auto;margin-top:38px}.categories h3{font-size:26px}.categories .prose{font-size:14px}.quality-threshold{gap:20px;margin-top:24px}.quality-threshold strong{font-size:56px}.ring-intro{font-size:16px}.ring-comparison{grid-template-columns:1fr;margin-top:32px;gap:32px}.ring-comparison .media-link{height:430px}.ring-comparison>div:first-child .case-figure{margin-top:0}.ring-comparison>div:first-child img{object-fit:contain}.frame-label{min-height:0;padding-block:12px}.step-context{min-height:0}.step-context p{margin-bottom:12px}.verdict-layout{grid-template-columns:1fr;margin-top:56px;gap:32px}.verdict-scores{gap:48px}.telegram-figure{max-width:330px;justify-self:center}.gallery-lead{margin-top:0;font-size:16px;margin-bottom:32px}.gallery-group{gap:16px;display:block;margin-top:32px;padding-top:20px}.gallery-group p{margin-top:8px}.gallery-grid{grid-template-columns:1fr 1fr;gap:28px 12px}.gallery-figure figcaption{font-size:11px;margin-top:10px}.gallery-figure figcaption>span{font-size:8px}.video-fallback{font-size:11px}.result-heading h2{font-size:40px}.result-split{gap:24px;margin-block:24px}.result-split strong{font-size:26px}.case-stack{margin-top:36px;padding-top:24px}.case-stack li{font-size:11px;padding:7px 9px}.case-next{grid-template-columns:1fr;gap:24px;padding-block:56px}.case-next h2{font-size:36px}.case-next p:not(.case-eyebrow){font-size:16px}.case-footer{padding-block:18px;gap:8px}.case-footer .lt-header__brand{font-size:13px;gap:0}.case-footer .lt-header__brand img{padding:8px}.case-footer .lt-link{font-size:12px}.lightbox{width:100vw;height:100dvh}.lightbox-bar{padding:10px;gap:14px;font-size:11px}.lightbox-stage{grid-template-columns:36px minmax(0,1fr) 36px;gap:4px;padding:8px 4px}.lightbox-stage button{min-width:36px}.lightbox-stage img{max-height:100%}#lightbox-caption{padding:12px 18px 22px;font-size:12px}}
@media(max-width:374px){.case-header .lt-btn{font-size:10px;padding-inline:8px}.case-header .lt-header__brand{font-size:12px}.earring-pair .media-link{height:250px}.categories{grid-template-columns:1fr}.categories .case-figure{max-width:220px;margin-top:0}.case-fact:first-child{gap:16px}.case-fact:first-child strong{font-size:46px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

.quality-layout { display: block; }
.quality-intro { display: grid; grid-template-columns: 1.5fr 1fr; align-items: start; gap: 8%; }
.quality-intro .quality-threshold { margin-top: 0; }
.categories .case-figure { margin-top: 0; }

@media (max-width: 850px) {
  .verification-flow { padding: 24px; }
  .verification-flow__steps { grid-template-columns: 1fr; gap: 16px; }
  .flow-step { padding: 20px; }
  .flow-step p br { display: none; }
  .flow-arrow { flex-direction: row; justify-content: center; gap: 8px; font-size: 0; }
  .flow-arrow::after { content: "↓"; font-size: 28px; }
  .flow-arrow small { margin: 0; }
  .quality-intro { grid-template-columns: 1fr; gap: 28px; }
  .quality-intro .quality-threshold { max-width: 500px; }
  .categories .case-figure { margin-top: 24px; }
}
@media (max-width: 700px) {
  .case-header { min-height: 76px; gap: 12px; }
  .chapter-navigation { left: 16px; right: 16px; bottom: max(12px, env(safe-area-inset-bottom)); width: auto; }
  .chapter-menu summary { padding: 12px 16px; min-height: 64px; }
  .chapter-menu__panel { max-height: calc(100dvh - 116px - env(safe-area-inset-bottom)); }
  .verification-flow { padding: 20px 16px; margin-top: 32px; }
  .verification-flow h3 { font-size: 22px; margin-bottom: 24px; }
  .flow-step { padding: 18px; }
  .flow-retry { align-items: start; padding: 16px; gap: 12px; }
  .flow-examples { grid-template-columns: 1fr; gap: 16px; padding-top: 20px; }
  .flow-examples>div { display: grid; grid-template-columns: 124px 1fr; gap: 12px; align-items: baseline; }
  .flow-examples strong { font-size: 18px; }
  .flow-examples span { margin: 0; }
  .verification-flow figcaption a { display: inline-block; margin-left: 0; }
  .comparison-step { display: block; }
  .step-context:empty { display: none; }
  .categories .case-figure { margin-top: 0; }
  .lightbox-bar { gap: 12px; }
  .lightbox [data-lightbox-close] { padding-inline: 12px; gap: 10px; font-size: 12px; }
}