:root {
  --ink: #0E1120;
  --muted: #4B5165;
  --soft: #F6F7FB;
  --pill: #F2F3F7;
  --line: #E4E6EE;
  --accent: #2B3BFF;
  --accent-deep: #1E2BCC;
  --tint: #EEF0FF;
  --ring: #DDE0FA;
  --dark-text: #C5C9D8;
  --display: 'Bricolage Grotesque', 'Noto Sans TC', sans-serif;
  --body: 'Instrument Sans', 'Noto Sans TC', sans-serif;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #FFFFFF;
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, p { margin: 0; }
h1, h2 { font-family: var(--display); font-weight: 800; letter-spacing: -0.04em; }
h3 { font-weight: 600; }
html[data-lang="zh"] h1, html[data-lang="zh"] h2 { letter-spacing: -0.01em; font-weight: 900; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.accent { color: var(--accent); }
.eyebrow { font-size: 14px; font-weight: 600; color: var(--accent-deep); letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 14px; }
.lede { font-size: 20px; line-height: 1.55; color: var(--muted); max-width: 32em; }
section { padding: 112px 0; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 14px 26px; border-radius: 999px; font-weight: 600; font-size: 16px; border: none; cursor: pointer; font-family: var(--body); transition: background .15s, color .15s; }
.btn-primary { background: var(--accent); color: #FFFFFF; }
.btn-primary:hover { background: var(--accent-deep); }
.btn-soft { background: var(--pill); color: var(--ink); }
.btn-soft:hover { background: var(--line); }
.btn-dark { background: var(--ink); color: #FFFFFF; }
.btn-dark:hover { background: #262B42; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

/* Header */
header.site { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; }
.nav-row { max-width: var(--max); margin: 0 auto; padding: 18px 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-family: var(--display); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; display: flex; align-items: center; gap: 10px; }
.brand-dots { display: flex; gap: 3px; }
.brand-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--ink); }
.brand-dots span:first-child { background: var(--accent); }
nav.links { display: flex; gap: 4px; background: var(--pill); padding: 5px; border-radius: 999px; font-size: 15px; font-weight: 500; }
nav.links a { padding: 9px 16px; border-radius: 999px; color: var(--muted); }
nav.links a:hover { color: var(--ink); }
nav.links a.active { background: #FFFFFF; color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.lang-toggle { display: flex; align-items: center; gap: 2px; font-size: 14px; font-weight: 600; }
.lang-toggle button, .lang-toggle a { background: none; border: none; padding: 8px 6px; cursor: pointer; color: var(--ink); font: inherit; min-height: 40px; display: inline-flex; align-items: center; text-decoration: none; }
.lang-toggle button.active, .lang-toggle a.active { color: var(--ink); }
.lang-toggle a:hover { color: var(--ink); }
.lang-toggle img { display: block; width: 21px; height: 14px; border-radius: 3px; box-shadow: 0 0 0 1px rgba(14,17,32,0.12); transition: box-shadow 0.15s; }
.lang-toggle a:hover img, .lang-toggle a:focus-visible img { box-shadow: 0 0 0 1px rgba(14,17,32,0.12), 0 0 0 3px #E4E7F5; }
.lang-toggle a.active img { opacity: 1; box-shadow: 0 0 0 2px #FFFFFF, 0 0 0 3px var(--ink); }
.nav-cta { padding: 11px 20px; min-height: 44px; font-size: 14px; }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; width: 44px; height: 44px; position: relative; padding: 0; }
.mobile-toggle span { position: absolute; left: 11px; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s, top .2s; }
.mobile-toggle span:nth-child(1) { top: 15px; }
.mobile-toggle span:nth-child(2) { top: 21px; }
.mobile-toggle span:nth-child(3) { top: 27px; }
.mobile-toggle.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.mobile-toggle.is-open span:nth-child(2) { opacity: 0; }
.mobile-toggle.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* Hero */
.hero { padding: 72px 0 96px; }
.hero-grid { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
.hero-copy { flex: 1.15 1 540px; min-width: 0; }
.hero h1 { font-size: 84px; line-height: 0.95; margin-top: 26px; }
html[data-lang="zh"] .hero h1 { font-size: 72px; line-height: 1.12; }
.hero .lede { margin-top: 28px; }
.badge { display: inline-flex; align-items: center; gap: 10px; background: var(--tint); color: var(--accent-deep); padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; }
.badge::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.page-hero { padding: 80px 0 72px; }
.page-hero h1 { font-size: 72px; line-height: 1; margin-top: 22px; max-width: 14em; }
html[data-lang="zh"] .page-hero h1 { font-size: 60px; line-height: 1.15; }
.page-hero .lede { margin-top: 24px; }

/* Orbit */
.orbit-wrap { flex: 1 1 440px; min-width: 0; display: flex; justify-content: center; }
.orbit { position: relative; width: 460px; max-width: 100%; aspect-ratio: 1 / 1; }
.orbit .ring { position: absolute; border-radius: 50%; }
.orbit .r1 { inset: 0; border: 1px dashed #C9CDF5; }
.orbit .r2 { inset: 15%; border: 1px solid var(--ring); }
.orbit .r3 { inset: 30%; background: var(--tint); }
.orbit .core { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 28%; aspect-ratio: 1 / 1; border-radius: 50%; background: var(--accent); color: #FFFFFF; display: flex; align-items: center; justify-content: center; text-align: center; font-family: var(--display); font-weight: 700; font-size: 17px; line-height: 1.15; padding: 8px; }
.chip { position: absolute; background: #FFFFFF; border: 1px solid var(--ring); border-radius: 999px; padding: 10px 16px; font-size: 14px; font-weight: 600; white-space: nowrap; box-shadow: 0 6px 20px rgba(30, 43, 204, 0.10); }
.chip.dark { background: var(--ink); color: #FFFFFF; border-color: var(--ink); }
.chip.c1 { left: 50%; top: -2%; transform: translateX(-50%); }
.chip.c2 { right: -3%; top: 30%; }
.chip.c3 { right: 2%; bottom: 9%; }
.chip.c4 { left: -2%; bottom: 15%; }
.chip.c5 { left: -5%; top: 26%; }

/* Section heads */
.head-center { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.head-center h2, .head-split h2 { font-size: 54px; line-height: 1.02; }
html[data-lang="zh"] .head-center h2, html[data-lang="zh"] .head-split h2 { font-size: 46px; line-height: 1.2; }
.head-center p { margin: 18px auto 0; color: var(--muted); font-size: 17px; max-width: 34em; }
.head-split { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 48px; }
.head-split p { color: var(--muted); font-size: 17px; max-width: 28em; }
.bg-soft { background: var(--soft); }

/* Model cards */
.model-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.model { background: #FFFFFF; border-radius: 20px; padding: 32px 28px; display: flex; flex-direction: column; gap: 12px; }
.model .icon { width: 44px; height: 44px; border-radius: 12px; background: var(--tint); color: var(--accent-deep); display: flex; align-items: center; justify-content: center; }
.model h3 { font-family: var(--display); font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin-top: 8px; }
.model p { color: var(--muted); font-size: 15.5px; }
.model .tag { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13.5px; font-weight: 600; color: var(--ink); }
.model.featured { background: var(--accent); color: #FFFFFF; }
.model.featured .icon { background: rgba(255,255,255,0.16); color: #FFFFFF; }
.model.featured p, .model.featured .tag { color: #FFFFFF; }
.model.featured .tag { border-top-color: rgba(255,255,255,0.3); }
.model .label { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0.85; }

/* Roles */
.split { display: flex; flex-wrap: wrap; gap: 56px; }
.split > .side { flex: 1 1 360px; min-width: 0; }
.split > .main { flex: 1.4 1 520px; min-width: 0; }
.split h2 { font-size: 50px; line-height: 1.02; }
html[data-lang="zh"] .split h2 { font-size: 42px; line-height: 1.2; }
.split .side p { margin-top: 22px; color: var(--muted); font-size: 17px; }
.role-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.role { border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
.role h3 { font-size: 18px; margin-bottom: 8px; }
.role p { color: var(--muted); font-size: 15px; line-height: 1.55; }
.role.wide { grid-column: 1 / -1; background: var(--ink); border-color: var(--ink); color: #FFFFFF; }
.role.wide p { color: var(--dark-text); }

/* Dark block */
.dark-block { background: var(--ink); color: #FFFFFF; border-radius: 28px; padding: 64px 56px; }
.dark-block h2 { font-size: 48px; line-height: 1.02; }
html[data-lang="zh"] .dark-block h2 { font-size: 40px; line-height: 1.2; }
.dark-block .head-split p { color: var(--dark-text); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
.step { border-top: 2px solid #3A4060; padding-top: 20px; }
.step:first-child { border-top-color: var(--accent); }
.step .num { font-size: 14px; color: #9EA6FF; font-weight: 600; }
.step h3 { font-size: 20px; margin: 8px 0; }
.step p { color: var(--dark-text); font-size: 15px; line-height: 1.55; }

/* CTA */
.cta { text-align: center; padding-top: 0; }
.cta h2 { font-size: 64px; line-height: 1; max-width: 12em; margin: 0 auto; }
html[data-lang="zh"] .cta h2 { font-size: 52px; line-height: 1.2; }
.cta p { margin: 22px auto 0; color: var(--muted); font-size: 18px; max-width: 32em; }
.cta .actions { justify-content: center; }

/* Service rows */
.svc { display: flex; flex-wrap: wrap; gap: 24px 56px; padding: 48px 0; border-top: 1px solid var(--line); }
.svc:last-child { border-bottom: 1px solid var(--line); }
.svc .svc-head { flex: 1 1 300px; min-width: 0; }
.svc .svc-body { flex: 2 1 520px; min-width: 0; }
.svc .num { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; height: 32px; padding: 0 12px; border-radius: 999px; background: var(--tint); color: var(--accent-deep); font-weight: 600; font-size: 14px; margin-bottom: 16px; }
.svc.featured .num { background: var(--accent); color: #FFFFFF; }
.svc h3 { font-family: var(--display); font-size: 32px; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.svc .svc-body > p { color: var(--muted); font-size: 17px; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.fact { background: var(--soft); border-radius: 14px; padding: 16px 18px; }
.fact .k { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 4px; }
.fact .v { font-size: 15px; line-height: 1.5; }

/* Sector cards */
.sector-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.sector { border: 1px solid var(--line); border-radius: 18px; padding: 26px; background: #FFFFFF; }
.sector .k { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 10px; }
.sector h3 { font-size: 19px; margin-bottom: 8px; }
.sector p { color: var(--muted); font-size: 15px; line-height: 1.55; }
.sector.featured { background: var(--accent); border-color: var(--accent); color: #FFFFFF; grid-column: span 2; }
.sector.featured .k, .sector.featured p { color: #FFFFFF; }

/* Principles */
.card-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card { background: #FFFFFF; border-radius: 20px; padding: 32px 28px; }
.card h3 { font-family: var(--display); font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin: 14px 0 10px; }
.card p { color: var(--muted); font-size: 15.5px; }
.card .icon { width: 44px; height: 44px; border-radius: 12px; background: var(--tint); color: var(--accent-deep); display: flex; align-items: center; justify-content: center; }

/* Contact */
.contact-grid { display: flex; flex-wrap: wrap; gap: 56px; }
.contact-form { flex: 1.3 1 520px; min-width: 0; background: var(--soft); border-radius: 24px; padding: 40px; }
.contact-info { flex: 1 1 320px; min-width: 0; }
.field { margin-bottom: 20px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px; background: #FFFFFF; font-family: var(--body); font-size: 15px; color: var(--ink); }
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.info-item { padding: 22px 0; border-top: 1px solid var(--line); }
.info-item:first-child { border-top: none; padding-top: 0; }
.info-item h4 { margin: 0 0 6px; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); }
.info-item p { color: var(--muted); font-size: 15.5px; }

/* Footer */
footer.site { background: var(--soft); }
.footer-grid { max-width: var(--max); margin: 0 auto; padding: 56px 32px 32px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; font-size: 14.5px; color: var(--muted); }
.footer-grid .brand { color: var(--ink); margin-bottom: 10px; font-size: 20px; }
.footer-grid h4 { margin: 0 0 12px; font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: 0.04em; text-transform: uppercase; }
.footer-grid a { display: block; margin-bottom: 8px; }
.footer-grid a:hover { color: var(--accent-deep); }
.footer-bottom { max-width: var(--max); margin: 0 auto; padding: 20px 32px 32px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

/* Responsive */
@media (max-width: 1080px) {
  .model-grid, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sector-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  nav.links { display: none; }
  .mobile-toggle { display: block; }
  .nav-cta { display: none; }
  nav.links.mobile-open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 16px; right: 16px; background: #FFFFFF; border: 1px solid var(--line); border-radius: 20px; padding: 10px; box-shadow: 0 12px 32px rgba(14,17,32,0.12); }
  nav.links.mobile-open a { padding: 14px 16px; }
}
@media (max-width: 720px) {
  .wrap, .nav-row { padding-left: 16px; padding-right: 16px; }
  section { padding: 72px 0; }
  .hero { padding: 40px 0 64px; }
  .hero h1 { font-size: 50px; }
  html[data-lang="zh"] .hero h1 { font-size: 42px; }
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 44px; }
  html[data-lang="zh"] .page-hero h1 { font-size: 38px; }
  .lede { font-size: 18px; }
  .head-center h2, .head-split h2, .split h2, .dark-block h2 { font-size: 36px; }
  html[data-lang="zh"] .head-center h2, html[data-lang="zh"] .head-split h2, html[data-lang="zh"] .split h2, html[data-lang="zh"] .dark-block h2 { font-size: 32px; }
  .cta h2 { font-size: 40px; }
  html[data-lang="zh"] .cta h2 { font-size: 34px; }
  .model-grid, .steps, .role-grid, .sector-grid, .card-grid-3, .card-grid-2, .facts, .field-row { grid-template-columns: 1fr; }
  .sector.featured { grid-column: auto; }
  .dark-block { padding: 40px 24px; border-radius: 20px; }
  .contact-form { padding: 24px; }
  .chip { font-size: 12px; padding: 8px 12px; }
  .orbit .core { font-size: 14px; }
  .orbit { width: 80%; }
  .svc h3 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; padding-left: 16px; padding-right: 16px; }
  .footer-bottom { padding-left: 16px; padding-right: 16px; }
}

/* Non-AI chips */
.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-tag { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 18px; border-radius: 999px; background: #FFFFFF; border: 1px solid var(--line); font-size: 15px; font-weight: 500; }
.bg-soft + .cta { padding-top: 112px; }
@media (max-width: 720px) { .bg-soft + .cta { padding-top: 72px; } }
.footer-grid .addr { margin-bottom: 12px; line-height: 1.5; }
.footer-grid .addr strong { color: var(--ink); font-weight: 600; }

/* Consultancy vs GI Executive comparison */
.vs { border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.vs-row { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr) minmax(0, 1.2fr); border-top: 1px solid var(--line); }
.vs-row:first-child { border-top: 0; }
.vs-row > div { padding: 20px 24px; font-size: 16px; line-height: 1.5; }
.vs-k { font-weight: 600; color: var(--ink); }
.vs-them { color: var(--muted); }
.vs-us { background: var(--tint); color: var(--ink); font-weight: 500; }
.vs-head > div { font-family: var(--display); font-size: 20px; font-weight: 700; letter-spacing: -0.02em; padding-top: 22px; padding-bottom: 22px; }
.vs-head .vs-them { color: var(--muted); }
.vs-head .vs-us { background: var(--accent); color: #FFFFFF; }
@media (max-width: 720px) {
  .vs-row { grid-template-columns: 1fr 1fr; }
  .vs-row > .vs-k { grid-column: 1 / -1; padding-bottom: 4px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); }
  .vs-head > .vs-k { display: none; }
  .vs-row > div { padding: 14px 16px; font-size: 15px; }
  .vs-row > .vs-k + div, .vs-row > .vs-k + div + div { padding-top: 8px; }
  .vs-head > div { font-size: 17px; }
}

/* What we automate (use cases) */
.uc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.uc { border: 1px solid var(--line); border-radius: 20px; padding: 26px 24px; background: #FFFFFF; transition: border-color .2s; }
.uc:hover { border-color: var(--ring); }
.uc-num { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 28px; padding: 0 10px; border-radius: 999px; background: var(--tint); color: var(--accent-deep); font-weight: 600; font-size: 13px; }
.uc h3 { font-family: var(--display); font-size: 21px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; margin: 16px 0 10px; }
.uc p { color: var(--muted); font-size: 15px; line-height: 1.55; }
@media (max-width: 1080px) { .uc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .uc-grid { grid-template-columns: 1fr; } .uc { padding: 22px 20px; } .uc h3 { font-size: 19px; } }

/* Beyond AI: other key hires (dark block, two-column list) */
.dark-block.beyond { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.beyond-copy p { color: var(--dark-text); font-size: 17px; margin: 20px 0 28px; }
.beyond-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; }
.beyond-row { padding: 18px 0; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.beyond-row .t { color: #FFFFFF; font-weight: 700; font-size: 17px; }
.beyond-row .r { color: var(--dark-text); font-size: 14.5px; line-height: 1.5; margin-top: 4px; }
@media (max-width: 1200px) { .dark-block.beyond { grid-template-columns: 1fr; gap: 36px; } .beyond-copy p { max-width: 40em; } }
@media (max-width: 720px) { .beyond-list { grid-template-columns: 1fr; } }

/* Skip link */
.skip-link { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--ink); color: #FFFFFF; padding: 10px 16px; border-radius: 10px; font-weight: 600; text-decoration: none; transition: top .15s; }
.skip-link:focus { top: 12px; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-item summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 22px 0; font-family: var(--display); font-weight: 700; font-size: 19px; letter-spacing: -0.01em; color: var(--ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; flex: 0 0 auto; width: 32px; height: 32px; border-radius: 50%; background: #FFFFFF; border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; font-family: var(--body); font-weight: 500; font-size: 20px; color: var(--accent-deep); }
.faq-item[open] summary::after { content: "\2212"; background: var(--accent); border-color: var(--accent); color: #FFFFFF; }
.faq-item p { color: var(--muted); font-size: 16px; line-height: 1.65; padding: 0 52px 24px 0; }
@media (max-width: 720px) { .faq-item summary { font-size: 17px; padding: 18px 0; } .faq-item p { padding-right: 0; } }

/* Insights listing */
.insight-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.filter-chip { border: 1px solid var(--line); background: #FFFFFF; color: var(--muted); border-radius: 999px; padding: 10px 18px; font: 600 14px var(--body); cursor: pointer; min-height: 42px; }
.filter-chip:hover { color: var(--ink); border-color: var(--ring); }
.filter-chip.active { background: var(--ink); border-color: var(--ink); color: #FFFFFF; }
.insight-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.insight-card { display: flex; flex-direction: column; background: #FFFFFF; border: 1px solid var(--line); border-radius: 20px; padding: 26px; color: var(--ink); text-decoration: none; transition: border-color .2s, transform .2s; }
.insight-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.insight-card[hidden] { display: none; }
.insight-cat { display: inline-flex; align-self: flex-start; background: var(--tint); color: var(--accent-deep); border-radius: 999px; padding: 5px 12px; font-size: 12.5px; font-weight: 600; letter-spacing: 0.02em; }
.insight-card h3 { font-family: var(--display); font-size: 21px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; margin: 16px 0 10px; }
.insight-card p { color: var(--muted); font-size: 15px; line-height: 1.55; flex: 1; }
.insight-meta { color: #8B90A3; font-size: 13px; margin-top: 18px; }
@media (max-width: 1080px) { .insight-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .insight-grid { grid-template-columns: 1fr; } }

/* Article */
.article-hero { padding: 56px 0 40px; }
.article-head { max-width: 880px; }
.crumbs { display: flex; gap: 8px; font-size: 14px; color: #8B90A3; margin-bottom: 22px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent-deep); }
.article-head h1 { font-family: var(--display); font-size: 52px; font-weight: 800; line-height: 1.08; letter-spacing: -0.03em; margin: 18px 0 18px; }
html[data-lang="zh"] .article-head h1 { font-size: 44px; line-height: 1.25; letter-spacing: 0; font-weight: 900; }
.article-meta { color: #8B90A3; font-size: 14px; margin-top: 18px; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 64px; align-items: start; }
.prose { max-width: 720px; font-size: 17.5px; line-height: 1.75; color: #2A2F42; }
html[data-lang="zh"] .prose { font-size: 17px; line-height: 1.9; }
.prose h2 { font-family: var(--display); font-size: 30px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; color: var(--ink); margin: 44px 0 14px; }
html[data-lang="zh"] .prose h2 { font-size: 26px; line-height: 1.35; }
.prose h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin: 30px 0 10px; }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { margin: 0 0 20px; padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--ink); }
.prose a { color: var(--accent-deep); }
.keypoints { background: var(--soft); border-left: 4px solid var(--accent); border-radius: 0 16px 16px 0; padding: 22px 26px; margin-bottom: 34px; }
.keypoints-label { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 8px; }
.keypoints ul { margin: 0; }
.keypoints li { margin-bottom: 6px; }
.table-wrap { overflow-x: auto; margin: 0 0 24px; border: 1px solid var(--line); border-radius: 14px; }
.prose table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 15px; line-height: 1.55; }
.prose th, .prose td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { background: var(--soft); color: var(--ink); font-weight: 700; }
.prose tr:last-child td { border-bottom: 0; }
.article-aside { position: sticky; top: 110px; }
.aside-card { background: var(--ink); color: #FFFFFF; border-radius: 22px; padding: 28px; }
.aside-card h3 { font-family: var(--display); font-size: 22px; font-weight: 700; line-height: 1.25; margin: 10px 0 10px; }
.aside-card p { color: var(--dark-text); font-size: 15px; margin-bottom: 20px; }
@media (max-width: 1080px) { .article-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; } .article-aside { position: static; } }
@media (max-width: 720px) {
  .article-hero { padding: 32px 0 24px; }
  .article-head h1 { font-size: 34px; }
  html[data-lang="zh"] .article-head h1 { font-size: 30px; }
  .prose { font-size: 16.5px; }
  .prose h2 { font-size: 24px; }
  html[data-lang="zh"] .prose h2 { font-size: 22px; }
}

/* Case studies */
.case-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.case-note {
  background: var(--tint);
  border: 1px solid var(--ring);
  border-radius: 16px;
  padding: 18px 22px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.6;
  margin-bottom: 36px;
  max-width: 52em;
}
.case-note strong { color: var(--accent-deep); }
.case-list { display: flex; flex-direction: column; gap: 22px; }
.case-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 32px 32px 28px;
}
.case-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  margin-bottom: 18px;
}
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.case-region {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 600;
}
.case-model {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent-deep);
}
.case-card h2 {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 20px;
}
html[data-lang="zh"] .case-card h2 {
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 900;
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-bottom: 8px;
}
.case-grid h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 10px;
}
.case-grid p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}
.case-card .facts { margin-top: 28px; }
@media (max-width: 1100px) {
  .case-grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .case-card { padding: 28px 22px; border-radius: 20px; }
  .case-card h2 { font-size: 24px; }
  html[data-lang="zh"] .case-card h2 { font-size: 22px; }
  .case-grid, .case-grid-3 { grid-template-columns: 1fr; gap: 20px; }
}

/* Case study preview cards (Insights-style listing) */
.case-card-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.case-preview .case-card-metrics {
  display: flex; flex-direction: column; gap: 6px;
  margin: 14px 0 10px; padding-top: 12px;
  border-top: 1px solid var(--line);
}
.case-card-metric {
  font-size: 13px; color: var(--muted); line-height: 1.4;
}
.case-card-metric strong {
  color: var(--accent-deep); font-weight: 700; display: block;
  font-size: 14.5px; letter-spacing: -0.01em;
}
.case-detail .facts { margin-top: 8px; }
.case-detail h2 { margin-top: 1.6em; }
.case-detail h2:first-child { margin-top: 0; }

/* ======================================================================
   Insights & Case Studies — redesign (Oct 2026)
   One motif: results set in large display numerals on ink panels.
   ====================================================================== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.insight-card:focus-visible, .case-card2:focus-visible, .case-feature:focus-visible, .proof-card:focus-visible,
.filter-chip:focus-visible, .share a:focus-visible, .share button:focus-visible, .toc a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* ---------- topic covers (orbit motif from the home page) ---------- */
.cover { position: relative; display: block; aspect-ratio: 16 / 8; border-radius: 14px; overflow: hidden; isolation: isolate; }
.cover-ring { position: absolute; border-radius: 50%; border: 1px solid currentColor; opacity: .28; aspect-ratio: 1 / 1; transform: translate(-50%, -50%); }
.cover .r1 { height: 190%; } .cover .r2 { height: 120%; border-style: dashed; } .cover .r3 { height: 56%; opacity: .5; background: currentColor; }
.cover .r3 { opacity: .12; }
.cover--v0 .cover-ring { left: 78%; top: 50%; }
.cover--v1 .cover-ring { left: 86%; top: 8%; }
.cover--v2 .cover-ring { left: 72%; top: 96%; }
.cover--v3 .cover-ring { left: 94%; top: 60%; }
.cover-glyph { position: absolute; left: 20px; bottom: 18px; width: 40px; height: 40px; }
.cover--transformation { background: var(--accent); color: #FFFFFF; }
.cover--talent { background: var(--ink); color: #9EA6FF; }
.cover--usecases { background: var(--tint); color: var(--accent); }
.cover--market { background: #E7EAF6; color: var(--ink); }

/* ---------- insight cards ---------- */
.insight-card { padding: 10px; gap: 0; border-radius: 22px; }
.insight-card:hover { transform: none; }
.insight-card .cover { flex: none; }
.insight-body { display: flex; flex-direction: column; flex: 1; padding: 18px 14px 12px; }
.insight-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.insight-time { color: #8B90A3; font-size: 13px; white-space: nowrap; }
.insight-title { display: block; font-family: var(--display); font-size: 21px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; margin: 14px 0 10px; }
html:lang(zh) .insight-title { letter-spacing: 0; line-height: 1.4; font-size: 20px; }
.insight-desc { display: block; color: var(--muted); font-size: 15px; line-height: 1.55; }
.insight-card:hover .insight-title { color: var(--accent-deep); }
.insight-cat svg { margin-right: 6px; flex: none; }
.insight-cat { align-items: center; }

/* listing: featured row */
.blog-hero { padding-bottom: 48px; }
.featured-row { padding: 0 0 96px; }
.featured-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 18px; }
.featured-side { display: grid; gap: 18px; }
.insight-card--lead .cover { aspect-ratio: 16 / 9; }
.insight-card--lead .cover-glyph { width: 56px; height: 56px; left: 28px; bottom: 26px; }
.insight-card--lead .insight-body { padding: 26px 22px 18px; }
.insight-card--lead .insight-title { font-size: 34px; line-height: 1.1; letter-spacing: -0.03em; }
html:lang(zh) .insight-card--lead .insight-title { font-size: 30px; line-height: 1.3; letter-spacing: 0; }
.insight-card--lead .insight-desc { font-size: 17px; max-width: 34em; }
.insight-card--row { flex-direction: row; align-items: stretch; }
.insight-card--row .cover { width: 38%; aspect-ratio: auto; min-height: 180px; }
.insight-card--row .insight-body { padding: 14px 14px 10px 22px; }

/* listing: library */
.library { padding: 96px 0; border-top: 1px solid var(--line); }
.library-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.library-head h2 { font-size: 54px; line-height: 1.02; }
html:lang(zh) .library-head h2 { font-size: 46px; line-height: 1.2; letter-spacing: 0; }
.search-box { display: flex; align-items: center; gap: 10px; width: min(380px, 100%); min-height: 50px; padding: 0 18px; border: 1px solid var(--line); border-radius: 999px; background: #FFFFFF; color: #8B90A3; }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--tint); }
.search-box input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; font: 500 16px var(--body); color: var(--ink); padding: 12px 0; }
.search-box input::-webkit-search-cancel-button { cursor: pointer; }
.chip-count { margin-left: 8px; font-size: 12.5px; font-weight: 600; color: #8B90A3; }
.filter-chip.active .chip-count { color: #9EA6FF; }
.insight-filters { margin-bottom: 14px; }
.list-status { color: #8B90A3; font-size: 14px; min-height: 1.4em; margin: 0 0 18px; }
.insight-grid > [data-featured] { display: none; }
.is-filtering .insight-grid > [data-featured]:not([hidden]) { display: flex; }
.more-wrap { display: flex; justify-content: center; margin-top: 36px; }
.empty-state { text-align: center; padding: 56px 24px; border: 1px dashed var(--ring); border-radius: 22px; color: var(--muted); }
.empty-state p { margin-bottom: 18px; }

/* ---------- proof strip (case results, shown on Insights pages) ---------- */
.proof { background: var(--ink); color: #FFFFFF; }
.proof .head-split h2 { color: #FFFFFF; }
.proof .head-split p { color: var(--dark-text); margin-top: 14px; }
.proof .btn-soft { background: rgba(255,255,255,0.1); color: #FFFFFF; }
.proof .btn-soft:hover { background: rgba(255,255,255,0.18); }
.proof-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.proof-card { display: flex; flex-direction: column; padding: 28px; border-radius: 22px; background: #171B2F; border: 1px solid rgba(255,255,255,0.08); color: #FFFFFF; transition: border-color .2s; }
.proof-card:hover { border-color: #9EA6FF; }
.proof-industry { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: #9EA6FF; }
.proof-num { font-family: var(--display); font-weight: 800; font-size: 52px; line-height: 1; letter-spacing: -0.04em; margin-top: 34px; }
html:lang(zh) .proof-num { font-size: 36px; letter-spacing: -0.01em; white-space: nowrap; }
@media (max-width: 600px) { .proof-num { font-size: 40px; } .proof-card { padding: 24px; } }
.proof-label { color: var(--dark-text); font-size: 15px; margin-top: 10px; }
.proof-title { margin-top: auto; padding-top: 26px; font-weight: 600; font-size: 15px; line-height: 1.45; }
.proof + .cta { padding-top: 112px; }
@media (max-width: 720px) { .proof + .cta { padding-top: 72px; } }

/* ---------- article page ---------- */
.read-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60; pointer-events: none; }
.read-progress span { display: block; height: 100%; background: var(--accent); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }
.article-head .insight-cat { padding: 6px 12px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.article-meta > * + *::before { content: ''; display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: #C5C9D8; margin-right: 18px; vertical-align: middle; position: relative; top: -2px; }
.article-body { padding-top: 0; }
.article-grid { grid-template-columns: minmax(0, 1fr) 320px; }
.keypoints { border-left: 0; border-radius: 18px; background: var(--tint); padding: 24px 28px; }
.keypoints-label { text-transform: none; letter-spacing: 0; font-size: 15px; }
.keypoints li::marker { color: var(--accent); }
.prose h2 { scroll-margin-top: 100px; }
.article-aside { display: grid; gap: 18px; }
.aside-label { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.toc a { display: block; padding: 7px 0 7px 16px; margin-left: -2px; border-left: 2px solid transparent; color: var(--muted); font-size: 14.5px; line-height: 1.45; }
.toc a:hover { color: var(--ink); }
.toc a.is-active { color: var(--accent-deep); border-left-color: var(--accent); font-weight: 600; }
.aside-proof .proof-card { background: #FFFFFF; color: var(--ink); border-color: var(--line); padding: 22px; }
.aside-proof .proof-card:hover { border-color: var(--accent); }
.aside-proof .proof-industry { color: var(--accent-deep); }
.aside-proof .proof-num { color: var(--accent); font-size: 40px; margin-top: 22px; }
.aside-proof .proof-label { color: var(--muted); font-size: 14px; }
.aside-proof .proof-title { padding-top: 16px; font-size: 14px; }
.aside-card h3 { margin-top: 0; }
.article-end { margin-top: 48px; }
.share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 15px; font-weight: 600; color: var(--ink); }
.share > span { margin-right: 8px; }
.share a, .share button { display: inline-flex; align-items: center; gap: 8px; min-height: 42px; min-width: 42px; justify-content: center; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line); background: #FFFFFF; color: var(--ink); font: 600 14px var(--body); cursor: pointer; }
.share a:hover, .share button:hover { border-color: var(--accent); color: var(--accent-deep); }
.end-cta { margin-top: 32px; padding: 32px; border-radius: 24px; background: var(--soft); }
.prose .end-cta h2 { margin: 0 0 10px; }
.end-cta p { color: var(--muted); }
.end-cta .btn { margin-top: 4px; color: #FFFFFF; }
.prose .end-cta a.btn { color: #FFFFFF; }

/* ---------- case cards ---------- */
.case-grid2 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.case-card2 { display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); border-radius: 24px; background: #FFFFFF; color: var(--ink); transition: border-color .2s; }
.case-card2:hover { border-color: var(--accent); }
.case-card2[hidden] { display: none; }
.case-card2-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.case-industry { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; }
.case-industry svg { color: var(--accent); flex: none; }
.case-result { display: block; margin: 30px 0 22px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.case-result-num { display: block; font-family: var(--display); font-weight: 800; font-size: 50px; line-height: 1; letter-spacing: -0.04em; color: var(--accent); }
html:lang(zh) .case-result-num { font-size: 42px; letter-spacing: -0.01em; }
.case-result-label { display: block; margin-top: 10px; color: var(--muted); font-size: 15px; line-height: 1.45; }
.case-card2-body { display: block; }
.case-card2-title { display: block; font-family: var(--display); font-weight: 700; font-size: 19px; letter-spacing: -0.02em; line-height: 1.3; }
html:lang(zh) .case-card2-title { letter-spacing: 0; line-height: 1.45; font-size: 18px; }
.case-card2:hover .case-card2-title { color: var(--accent-deep); }
.case-card2-models, .snapshot-models { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.model-chip { display: inline-flex; padding: 4px 10px; border-radius: 999px; background: var(--pill); color: var(--muted); font-size: 12.5px; font-weight: 600; }
.case-card2-link { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 24px; color: var(--accent-deep); font-size: 14.5px; font-weight: 600; }
.case-card2-link svg, .case-feature-link svg { transition: transform .2s; }
.case-card2:hover .case-card2-link svg, .case-feature:hover .case-feature-link svg { transform: translateX(3px); }

/* case listing: featured case */
.case-hero { padding-bottom: 48px; }
.case-feature-wrap { padding: 0 0 96px; }
.case-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; padding: 52px; border-radius: 32px; background: var(--ink); color: #FFFFFF; }
.case-feature .case-industry { color: #FFFFFF; }
.case-feature .case-industry svg { color: #9EA6FF; }
.case-feature .case-region, .case-detail-hero .case-region { min-height: 28px; }
.case-feature .case-region { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.14); color: var(--dark-text); }
.case-feature h2 { font-size: 40px; line-height: 1.08; letter-spacing: -0.03em; margin: 28px 0 18px; }
html:lang(zh) .case-feature h2 { font-size: 32px; line-height: 1.35; letter-spacing: 0; }
.case-feature p { color: var(--dark-text); font-size: 16.5px; line-height: 1.65; max-width: 34em; }
.case-feature-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 28px; font-weight: 600; color: #FFFFFF; }
.case-feature-head .case-result-num { color: #FFFFFF; font-size: 76px; }
html:lang(zh) .case-feature-head .case-result-num { font-size: 58px; }
.case-feature-head .case-result-label { color: var(--dark-text); font-size: 17px; }

/* results ledger */
.ledger { display: grid; margin-top: 30px; }
.ledger-item { padding: 18px 0; border-top: 1px solid rgba(255,255,255,0.12); display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 18px; align-items: baseline; }
.ledger-label { font-size: 14px; font-weight: 600; color: #9EA6FF; }
.ledger-value { font-size: 17px; line-height: 1.5; color: var(--dark-text); }
.ledger-value .num { font-weight: 700; color: #FFFFFF; font-family: var(--display); letter-spacing: -0.01em; }

/* case listing: filters, grid, process */
.case-library { padding: 0 0 72px; }
.case-filters { display: flex; flex-wrap: wrap; gap: 14px 40px; margin-bottom: 14px; }
.filter-group { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.filter-label { flex: none; width: 120px; font-size: 14px; font-weight: 600; color: var(--muted); }
.case-filters { flex-direction: column; }
.case-library .case-grid2 > [data-featured] { display: none; }
.case-library.is-filtering .case-grid2 > [data-featured]:not([hidden]) { display: flex; }
.case-footnote { margin-top: 28px; color: #8B90A3; font-size: 14px; }
.engagement { padding: 96px 0; background: var(--soft); }
.steps-line { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: none; }
.steps-line li { position: relative; padding: 28px; background: #FFFFFF; border-radius: 22px; border: 1px solid var(--line); }
.steps-line h3 { font-family: var(--display); font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin: 20px 0 10px; }
.steps-line p { color: var(--muted); font-size: 15.5px; }
.step-n { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #FFFFFF; font-family: var(--display); font-weight: 700; font-size: 16px; flex: none; }
.engagement + .bg-soft { background: #FFFFFF; }
.head-split > div > p { margin-top: 14px; }
@media (max-height: 820px) { .article-aside { position: static; } }

/* case detail */
.case-detail-hero .case-card2-top { justify-content: flex-start; margin-bottom: 4px; }
.case-detail-hero h1 { margin-top: 22px; }
.results-band { padding: 0 0 72px; }
.results-panel { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 48px; align-items: start; padding: 44px 48px; border-radius: 32px; background: var(--ink); color: #FFFFFF; }
.results-panel .ledger { margin-top: 0; }
.results-panel .ledger-item:first-child { border-top: 0; padding-top: 0; }
.case-detail .timeline { list-style: none; padding: 0; margin: 8px 0 28px; position: relative; }
.case-detail .timeline::before { content: ''; position: absolute; left: 17px; top: 18px; bottom: 18px; width: 2px; background: var(--ring); }
.case-detail .timeline li { position: relative; display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 18px; align-items: start; margin: 0 0 18px; }
.case-detail .timeline li p { margin: 5px 0 0; }
.risk-head { font-size: 18px; }
.risk-list { list-style: none; padding: 0 !important; margin: 0 0 8px; display: grid; gap: 10px; }
.risk-list li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; margin: 0; padding: 14px 18px; border-radius: 14px; background: var(--soft); font-size: 16px; line-height: 1.6; }
.risk-list svg { color: var(--accent); margin-top: 3px; }
.aside-panel { padding: 24px; border-radius: 22px; border: 1px solid var(--line); }
.snapshot { margin: 0; display: grid; gap: 16px; }
.snapshot dt { font-size: 13.5px; color: #8B90A3; margin-bottom: 4px; }
.snapshot dd { margin: 0; font-weight: 600; font-size: 15.5px; }
.snapshot-models { margin-top: 2px; }

/* responsive */
@media (max-width: 1080px) {
  .featured-grid, .case-feature, .results-panel, .article-grid { grid-template-columns: minmax(0, 1fr); }
  .case-feature { gap: 36px; }
  .case-grid2, .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-aside { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); align-items: start; }
  .toc { display: none !important; }
  .article-aside .aside-card { display: none; }
}
@media (max-width: 720px) {
  .featured-row, .case-feature-wrap { padding-bottom: 64px; }
  .library, .engagement { padding: 64px 0; }
  .library-head h2 { font-size: 36px; }
  html:lang(zh) .library-head h2 { font-size: 32px; }
  .insight-card--lead .insight-title { font-size: 26px; }
  html:lang(zh) .insight-card--lead .insight-title { font-size: 24px; }
  .insight-card--row { flex-direction: column; }
  .insight-card--row .cover { width: 100%; min-height: 0; aspect-ratio: 16 / 8; }
  .insight-card--row .insight-body { padding: 18px 14px 12px; }
  .case-grid2, .proof-grid, .steps-line { grid-template-columns: minmax(0, 1fr); }
  .case-feature, .results-panel { padding: 30px 22px; border-radius: 24px; }
  .case-feature h2 { font-size: 30px; }
  html:lang(zh) .case-feature h2 { font-size: 26px; }
  .case-feature-head .case-result-num { font-size: 54px; }
  html:lang(zh) .case-feature-head .case-result-num { font-size: 42px; }
  .ledger-item { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .case-filters { gap: 12px; }
  .filter-label { width: 100%; }
  .search-box { width: 100%; }
  .end-cta { padding: 24px; }
  .results-band { padding-bottom: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  .case-card2-link svg, .case-feature-link svg, .proof-card, .case-card2 { transition: none; }
}