/* 言及 / YANJI · Brand green is unchanged: #3f7a61. */
:root {
  color-scheme: light;
  --md-primary: #3f7a61;
  --md-primary-hover: #2f684f;
  --md-on-primary: #fff;
  --md-text-strong: #223e36;
  --md-text: #263b33;
  --md-text-secondary: #59675e;
  --md-text-muted: #606c61;
  --md-primary-ink: #3f7a61;
  --md-bg-page: #f7f4ed;
  --md-bg-page-warm: #f8f3e6;
  --md-surface: #fffef8;
  --md-surface-soft: #eceee4;
  --md-primary-soft: #e1ece4;
  --md-border: #d8dcd0;
  --md-border-strong: #b8c1b3;
  --md-value: #9a7132;
  --md-font-sans: 'GEO Sans', system-ui, sans-serif;
  --md-font-serif: 'GEO Serif', 'GEO Sans', serif;
  --md-ease: cubic-bezier(.23,1,.32,1);
  --md-shadow: 0 18px 46px -20px rgba(34,62,54,.21);
  --page-width: 1240px;
  --gutter: clamp(22px, 5vw, 80px);
}
html[data-theme='dark'] {
  color-scheme: dark;
  --md-text-strong: #e9eee4;
  --md-text: #e3e8dd;
  --md-text-secondary: #bac5b9;
  --md-text-muted: #a6b5a8;
  --md-primary-ink: #9bc6aa;
  --md-bg-page: #19261f;
  --md-bg-page-warm: #1d2b23;
  --md-surface: #26372c;
  --md-surface-soft: #304236;
  --md-primary-soft: #30493b;
  --md-border: #415246;
  --md-border-strong: #647465;
  --md-shadow: 0 18px 46px -20px rgba(0,0,0,.4);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; font: 400 16px/1.75 var(--md-font-sans); color: var(--md-text); background: var(--md-bg-page); -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
svg { display: block; }
img { max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 500; }
h1, h2 { color: var(--md-text-strong); text-wrap: balance; }
p { text-wrap: pretty; }
[hidden] { display: none !important; }
::selection { background: var(--md-primary); color: #fff; }
:focus-visible { outline: 2px solid var(--md-primary); outline-offset: 5px; border-radius: 3px; }
.container { width: min(var(--page-width), calc(100% - var(--gutter) * 2)); margin-inline: auto; }
.skip-link { position: fixed; left: 20px; top: 12px; padding: 10px 18px; color: #fff; background: var(--md-primary); z-index: 100; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 50; background: var(--md-bg-page); border-bottom: 1px solid var(--md-border); }
.header-inner { height: 84px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 14px; flex-shrink: 0; }
.brand-lockup, .footer-brand-link { display: block; flex-shrink: 0; }
.brand-logo { display: block; width: 150px; height: auto; }
.brand-logo-dark { display: none; }
[data-theme='dark'] .brand-logo-light { display: none; }
[data-theme='dark'] .brand-logo-dark { display: block; }
.brand-product { padding-left: 14px; border-left: 1px solid var(--md-border-strong); font: 500 17px/1.2 var(--md-font-sans); letter-spacing: .05em; }
.desktop-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.desktop-nav a { font-size: 14px; color: var(--md-text-secondary); position: relative; padding: 12px 0; white-space: nowrap; }
.desktop-nav a[aria-current='page'] { color: var(--md-text-strong); }
.desktop-nav a[aria-current='page']::after { content: ''; height: 3px; width: 15px; background: var(--md-primary); position: absolute; bottom: 3px; left: 0; }
.header-actions { display: flex; gap: 17px; align-items: center; }
.icon-button { background: transparent; border: 1px solid transparent; padding: 0; height: 44px; width: 44px; display: grid; place-items: center; border-radius: 6px; }
.icon-button svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.theme-icon-sun, [data-theme='dark'] .theme-icon-moon { display: none; }
[data-theme='dark'] .theme-icon-sun { display: block; }
.menu-toggle { display: none; }
.mobile-nav { padding: 8px var(--gutter) 24px; border-top: 1px solid var(--md-border); background: var(--md-bg-page); }
.mobile-nav a { display: block; padding: 13px 0; border-bottom: 1px solid var(--md-border); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 24px; min-height: 50px; padding: 12px 24px; border: 1px solid var(--md-primary); background: var(--md-primary); color: #fff; border-radius: 5px; font-size: 14px; font-weight: 500; line-height: 1.5; transition: background 180ms ease, border-color 180ms ease, transform 150ms var(--md-ease); }
.button:active, .icon-button:active { transform: scale(.97); }
.button-small { min-height: 42px; padding: 10px 17px; gap: 17px; font-size: 13px; }
.button-outline { color: var(--md-text); background: transparent; border-color: var(--md-border-strong); }
.button-light { color: #223e36; background: #f7f4ed; border-color: #f7f4ed; }
.button .arrow { font: 22px/1 var(--md-font-sans); }
.text-link { display: inline-flex; align-items: center; gap: 16px; padding: 8px 0; font-size: 14px; border-bottom: 1px solid var(--md-border-strong); }
.eyebrow { display: flex; align-items: center; gap: 11px; color: var(--md-text-secondary); font-size: 11px; font-weight: 500; letter-spacing: .1em; line-height: 1.5; }
.eyebrow::before { content: ''; width: 7px; height: 7px; background: var(--md-primary); flex-shrink: 0; }
.latin { font-family: var(--md-font-sans); letter-spacing: .13em; }
.hero { position: relative; padding: 70px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.13fr 1fr; align-items: center; gap: clamp(34px,5vw,78px); }
.hero h1 { font: 500 clamp(40px,4.5vw,65px)/1.35 var(--md-font-serif); letter-spacing: -.045em; margin: 27px 0 24px; }
.hero h1 em { font-style: normal; color: var(--md-primary); }
[data-theme='dark'] .hero h1 em { color: #91c4a7; }
.hero-description { color: var(--md-text-secondary); font-size: 16px; line-height: 1.95; max-width: 450px; }
.hero-positioning { color: var(--md-text-strong); font-size: 17px; font-weight: 500; margin-bottom: 13px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 31px; }
.hero-footnote { color: var(--md-text-muted); font-size: 11px; margin-top: 22px; display: flex; align-items: center; gap: 8px; }
.hero-footnote span { width: 5px; height: 5px; border-radius: 50%; background: var(--md-primary); }
.answer-stage { background: var(--md-surface-soft); padding: 27px; border: 1px solid var(--md-border); border-radius: 10px; position: relative; }
.stage-top { display: flex; align-items: center; justify-content: space-between; color: var(--md-text-secondary); font-size: 10px; margin-bottom: 22px; }
.stage-dots { display: flex; gap: 4px; }
.stage-dots i { height: 4px; width: 4px; background: var(--md-border-strong); border-radius: 50%; }
.question { font-size: 15px; font-weight: 500; line-height: 1.75; margin-bottom: 21px; display: flex; gap: 12px; }
.q-icon { height: 27px; width: 27px; font: 14px/27px var(--md-font-serif); background: var(--md-bg-page); border: 1px solid var(--md-border); border-radius: 50%; text-align: center; flex-shrink: 0; }
.answer-card { background: var(--md-surface); padding: 23px 24px 20px; border: 1px solid var(--md-border); border-radius: 7px; box-shadow: var(--md-shadow); }
.answer-byline { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--md-text-muted); margin-bottom: 16px; }
.spark { color: var(--md-primary-ink); font-size: 20px; line-height: 1; }
.answer-text { font-size: 13px; line-height: 2; color: var(--md-text-secondary); }
.answer-text mark { background: var(--md-primary-soft); color: var(--md-text-strong); padding: 2px 5px; font-weight: 600; border-bottom: 1px solid var(--md-primary); white-space: nowrap; }
.answer-text sup { color: var(--md-primary-ink); font: 10px/1 var(--md-font-sans); padding-left: 2px; }
.citation-row { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; margin-top: 19px; padding-top: 15px; border-top: 1px solid var(--md-border); }
.citation-row span { font-size: 10px; color: var(--md-text-secondary); border: 1px solid var(--md-border); border-radius: 4px; padding: 3px 7px; }
.citation-row b { color: var(--md-primary-ink); font-weight: 500; margin-right: 5px; }
.stage-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 22px; color: var(--md-text-muted); font-size: 10px; gap: 12px; }
.stage-bottom strong { color: var(--md-text-strong); font-weight: 500; }
.journey { border-top: 1px solid var(--md-border); border-bottom: 1px solid var(--md-border); }
.journey-inner { display: grid; grid-template-columns: 1.22fr repeat(4,1fr); align-items: center; gap: 24px; padding-block: 23px; }
.journey-label { font-size: 12px; color: var(--md-text-muted); }
.journey-step { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.journey-step span { color: var(--md-primary-ink); font: 11px/1 var(--md-font-sans); }
.journey-step::after { content: '↗'; color: var(--md-border-strong); margin-left: auto; font-size: 17px; }
.journey-step:last-child::after { display: none; }
.section { padding: 91px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 43px; }
.section-heading h2, .section-title { font: 500 clamp(30px,3vw,43px)/1.45 var(--md-font-serif); letter-spacing: -.025em; margin-top: 16px; }
.section-heading > p { font-size: 14px; color: var(--md-text-secondary); max-width: 370px; padding-bottom: 6px; }
.capabilities { display: grid; grid-template-columns: repeat(3,1fr); gap: 38px; }
.capability { border-top: 1px solid var(--md-border-strong); padding-top: 23px; }
.capability-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 26px; }
.index { font: 12px/1 var(--md-font-sans); color: var(--md-primary-ink); letter-spacing: .04em; }
.capability-top .cap-icon { font: 23px/1 var(--md-font-sans); color: var(--md-primary-ink); }
.capability h3 { font-size: 22px; margin-bottom: 12px; letter-spacing: -.025em; }
.capability p { font-size: 14px; line-height: 1.95; color: var(--md-text-secondary); }
.capability-label { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--md-text-muted); font-size: 11px; }
.workflow-section { padding: 76px 0 80px; background: var(--md-bg-page-warm); border-block: 1px solid var(--md-border); }
.workflow-layout { display: grid; grid-template-columns: .83fr 1.5fr; gap: 70px; margin-top: 38px; }
.workflow-tabs { display: flex; flex-direction: column; border-top: 1px solid var(--md-border); }
.workflow-tab { text-align: left; display: grid; grid-template-columns: 30px 1fr 20px; align-items: center; gap: 10px; padding: 23px 10px; background: transparent; border: 0; border-bottom: 1px solid var(--md-border); color: var(--md-text-secondary); font-size: 16px; position: relative; }
.workflow-tab[aria-selected='true'] { color: var(--md-text-strong); background: var(--md-primary-soft); }
.workflow-tab[aria-selected='true']::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--md-primary); }
.workflow-tab .index { font-size: 10px; }
.workflow-tab b { font-size: 20px; font-weight: 400; }
.workflow-panel { padding: 30px 34px; background: var(--md-surface); border: 1px solid var(--md-border); border-radius: 7px; min-height: 337px; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--md-border); }
.panel-heading h3 { font-size: 19px; }
.small-label { font-size: 10px; color: var(--md-text-muted); letter-spacing: .07em; }
.panel-description { font-size: 13px; color: var(--md-text-secondary); padding: 20px 0; }
.evidence-list { display: grid; gap: 8px; }
.evidence-row { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 10px 13px; background: var(--md-bg-page); border-radius: 3px; font-size: 12px; }
.evidence-row > span:first-child { display: flex; align-items: center; gap: 9px; }
.evidence-row i { font-style: normal; font: 10px var(--md-font-sans); color: var(--md-text-muted); }
.evidence-state { font-size: 10px; color: var(--md-primary); white-space: nowrap; }
[data-theme='dark'] .evidence-state { color: #9bc6aa; }
.panel-note { font-size: 10px; color: var(--md-text-muted); margin-top: 16px; }
.service-section { background: #223e36; color: #f7f4ed; padding: 76px 0 80px; }
.service-section .eyebrow, .service-section .section-heading > p { color: #bdccc0; }
.service-section .eyebrow::before { background: #98bba3; }
.service-section h2 { color: #f7f4ed; }
.service-section .section-heading { margin-bottom: 36px; }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid #536b5e; border-radius: 6px; }
.service-card { padding: 30px 31px; display: flex; flex-direction: column; }
.service-card + .service-card { border-left: 1px solid #536b5e; }
.service-card .index { color: #bfd2bc; }
.service-card h3 { font-size: 24px; margin: 20px 0 8px; }
.service-card > p { color: #bdccc0; font-size: 13px; min-height: 46px; }
.service-items { list-style: none; padding: 0; margin: 24px 0 28px; font-size: 12px; color: #d5ded2; }
.service-items li { padding: 5px 0; display: flex; align-items: baseline; gap: 10px; }
.service-items li::before { content: '↗'; color: #9ebaaa; }
.service-card .text-link { align-self: flex-start; border-color: #73897a; margin-top: auto; font-size: 12px; }
.service-note { margin-top: 22px; color: #bdccc0; font-size: 11px; }
.faq-layout { display: grid; grid-template-columns: .8fr 1.4fr; gap: 90px; }
.faq-intro p:not(.eyebrow) { margin-top: 20px; max-width: 260px; color: var(--md-text-secondary); font-size: 14px; }
.faq-intro .text-link { margin-top: 22px; }
.faq-list { border-top: 1px solid var(--md-border-strong); }
.faq-list details { border-bottom: 1px solid var(--md-border); }
.faq-list summary { cursor: pointer; padding: 22px 26px 22px 0; list-style: none; font-size: 15px; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; position: absolute; right: 0; top: 20px; color: var(--md-primary); font: 24px var(--md-font-sans); }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details > p { padding: 0 22px 23px 0; color: var(--md-text-secondary); font-size: 13px; line-height: 1.95; }
.closing { border-top: 1px solid var(--md-border); padding: 54px 0; background: var(--md-primary-soft); }
.closing-inner { display: flex; justify-content: space-between; gap: 40px; align-items: center; }
.closing h2 { font: 500 clamp(27px,3vw,38px)/1.5 var(--md-font-serif); letter-spacing: -.035em; }
.closing p { font-size: 13px; color: var(--md-text-secondary); margin-top: 10px; }
.closing-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.closing-actions > a:last-child { font-size: 11px; color: var(--md-text-secondary); }
.site-footer { padding: 45px 0 23px; }
.footer-main { display: flex; justify-content: space-between; gap: 30px; align-items: flex-start; padding-bottom: 39px; }
.footer-brand .brand-logo { width: 140px; }
.footer-brand p { margin-top: 13px; color: var(--md-text-muted); font-size: 11px; }
.footer-links { display: flex; gap: 34px; color: var(--md-text-secondary); font-size: 12px; padding-top: 4px; }
.footer-bottom { border-top: 1px solid var(--md-border); padding-top: 18px; display: flex; flex-wrap: wrap; gap: 13px 25px; justify-content: space-between; color: var(--md-text-muted); font-size: 10px; }
.footer-legal { display: flex; gap: 22px; }
.detail-hero { padding: 52px 0 66px; }
.breadcrumb { font-size: 11px; color: var(--md-text-muted); display: flex; gap: 11px; margin-bottom: 40px; }
.detail-hero-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 80px; align-items: end; }
.detail-hero h1 { font: 500 clamp(37px,4.1vw,58px)/1.42 var(--md-font-serif); letter-spacing: -.03em; margin-top: 20px; }
.detail-hero .hero-description { margin-top: 22px; font-size: 15px; max-width: 530px; }
.article-header { padding: 48px 0 57px; border-bottom: 1px solid var(--md-border); background: var(--md-bg-page-warm); }
.article-header .breadcrumb { margin-bottom: 55px; }
.article-header h1 { max-width: 950px; margin: 19px 0 24px; font: 500 clamp(39px,4.2vw,60px)/1.42 var(--md-font-serif); letter-spacing: -.035em; }
.article-deck { max-width: 720px; color: var(--md-text-secondary); font-size: 17px; line-height: 1.95; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 27px; margin-top: 29px; color: var(--md-text-muted); font-size: 12px; }
.article-layout { display: grid; grid-template-columns: 210px minmax(0, 750px); justify-content: center; gap: clamp(45px,7vw,110px); padding-top: 77px; padding-bottom: 106px; }
.article-toc { align-self: start; position: sticky; top: 120px; display: grid; gap: 12px; border-left: 1px solid var(--md-border); padding-left: 20px; color: var(--md-text-secondary); font-size: 13px; }
.article-toc p { font-size: 10px; color: var(--md-primary-ink); margin-bottom: 4px; }
.article-toc a:hover, .article-body a:hover { color: var(--md-primary-ink); }
.article-body { min-width: 0; font-size: 16px; line-height: 2.05; }
.article-body p + p { margin-top: 18px; }
.article-body section { margin-top: 54px; scroll-margin-top: 110px; }
.article-body h2 { font: 500 clamp(28px,2.6vw,37px)/1.5 var(--md-font-serif); border-top: 1px solid var(--md-border); padding-top: 30px; margin-bottom: 20px; }
.article-body h3 { color: var(--md-text-strong); font-size: 20px; line-height: 1.6; margin-top: 27px; margin-bottom: 8px; }
.article-body a { color: var(--md-primary-ink); border-bottom: 1px solid var(--md-border-strong); }
.article-lead { font-size: 18px; line-height: 2; color: var(--md-text-strong); }
.article-endnote { margin-top: 48px; padding: 24px 28px; background: var(--md-surface-soft); border-left: 3px solid var(--md-primary); }
.article-next { padding: 57px 0; background: var(--md-primary-soft); border-block: 1px solid var(--md-border); }
.article-next-inner { display: flex; justify-content: space-between; align-items: end; gap: 45px; }
.article-next h2 { font: 500 clamp(29px,3vw,40px)/1.45 var(--md-font-serif); margin: 12px 0 9px; }
.article-next p:not(.eyebrow) { color: var(--md-text-secondary); font-size: 14px; }
.article-next-links { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.detail-aside { border-left: 1px solid var(--md-border-strong); padding-left: 30px; margin-bottom: 9px; }
.detail-aside > p { font-size: 14px; color: var(--md-text-secondary); margin: 12px 0 18px; }
.detail-aside .latin { font-size: 10px; color: var(--md-text-muted); }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 35px; }
.compare-card { border: 1px solid var(--md-border); padding: 29px 33px; border-radius: 6px; }
.compare-card.geo { background: var(--md-primary-soft); border-color: var(--md-border-strong); }
.compare-card .latin { font-size: 11px; color: var(--md-text-secondary); }
.compare-card h3 { font-size: 24px; margin: 17px 0 22px; }
.compare-row { display: grid; grid-template-columns: 72px 1fr; gap: 18px; padding: 12px 0; font-size: 13px; border-top: 1px solid var(--md-border); }
.compare-row span { color: var(--md-text-muted); }
.muted-section { background: var(--md-bg-page-warm); border-block: 1px solid var(--md-border); }
.delivery-list { border-top: 1px solid var(--md-border-strong); }
.delivery-row { display: grid; grid-template-columns: 50px 1fr 1.1fr; gap: 33px; padding: 34px 0; border-bottom: 1px solid var(--md-border); }
.delivery-row .index { padding-top: 10px; }
.delivery-row h3 { font-size: 23px; margin-bottom: 9px; }
.delivery-row p { color: var(--md-text-secondary); font-size: 13px; max-width: 390px; }
.delivery-output { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 8px; padding-top: 7px; }
.delivery-output span { border: 1px solid var(--md-border); padding: 5px 11px; font-size: 12px; background: var(--md-surface); border-radius: 4px; }
.distribution-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--md-border-strong); }
.distribution-step { padding: 25px 25px 0 0; }
.distribution-step + .distribution-step { padding-left: 25px; border-left: 1px solid var(--md-border); }
.distribution-step h3 { font-size: 19px; margin: 18px 0 10px; }
.distribution-step p { font-size: 13px; color: var(--md-text-secondary); }
.channel-strip { display: flex; align-items: center; gap: 22px; margin-top: 38px; background: var(--md-surface-soft); padding: 18px 24px; border-radius: 4px; font-size: 12px; }
.channel-strip span:first-child { color: var(--md-text-muted); }
.channel-strip strong { font-weight: 500; }
.model-list { border-top: 1px solid var(--md-border-strong); }
.model-row { display: grid; grid-template-columns: .8fr 1.1fr 1fr; gap: 30px; align-items: baseline; padding: 21px 0; border-bottom: 1px solid var(--md-border); }
.model-row h3 { font-size: 17px; }
.model-row p { font-size: 13px; color: var(--md-text-secondary); }
.model-code { font: 11px/1.7 ui-monospace, monospace; color: var(--md-text-muted); }
.model-note { color: var(--md-text-muted); font-size: 12px; margin-top: 20px; }
.industry-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 26px; }
.industry { border-top: 1px solid var(--md-border-strong); padding-top: 20px; }
.industry h3 { font-size: 19px; margin-bottom: 9px; }
.industry p { font-size: 13px; color: var(--md-text-secondary); }
@media (hover: hover) and (pointer: fine) {
  .button:hover { background: var(--md-primary-hover); border-color: var(--md-primary-hover); }
  .button-outline:hover { background: var(--md-primary-soft); color: var(--md-text-strong); border-color: var(--md-primary); }
  .button-light:hover { background: #e1ece4; border-color: #e1ece4; }
  .icon-button:hover { background: var(--md-primary-soft); }
  .desktop-nav a:hover, .footer-links a:hover, .footer-legal a:hover { color: var(--md-primary); }
  .text-link:hover { border-color: var(--md-primary); }
  .workflow-tab:hover { background: var(--md-primary-soft); }
  .faq-list summary:hover { color: var(--md-primary); }
}
@media (min-width: 1600px) { .hero { padding-block: 95px 82px; } }
@media (max-width: 1100px) {
  .header-inner { gap: 22px; }
  .desktop-nav { gap: 22px; }
  .header-actions { gap: 6px; }
  .brand-product { display: none; }
  .hero-grid { gap: 34px; }
  .hero h1 { font-size: 48px; }
  .answer-stage { padding: 20px; }
  .answer-card { padding: 20px; }
  .workflow-layout { gap: 40px; grid-template-columns: .9fr 1.5fr; }
  .service-card { padding: 26px 23px; }
  .faq-layout { gap: 60px; }
}
@media (max-width: 820px) {
  .article-layout { grid-template-columns: 1fr; gap: 38px; padding-top: 54px; padding-bottom: 70px; }
  .article-toc { position: static; display: flex; flex-wrap: wrap; gap: 10px 20px; }
  .article-toc p { width: 100%; }
  .article-next-inner { align-items: flex-start; flex-direction: column; gap: 24px; }
  .header-inner { height: 72px; }
  .brand-logo { width: 134px; }
  .desktop-nav { display: none; }
  .header-actions { margin-left: auto; gap: 7px; }
  .menu-toggle { display: grid; }
  .hero { padding: 45px 0 38px; }
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .hero h1 { font-size: 36px; }
  .hero-description { font-size: 14px; }
  .hero-actions { gap: 16px; }
  .answer-stage { padding: 17px; }
  .question { font-size: 13px; gap: 8px; }
  .answer-card { padding: 16px; }
  .answer-text { font-size: 12px; }
  .stage-bottom { flex-direction: column; align-items: flex-start; gap: 4px; }
  .journey-inner { grid-template-columns: repeat(4,1fr); gap: 16px; padding-block: 20px; }
  .journey-label { grid-column: 1 / -1; }
  .journey-step { font-size: 12px; gap: 8px; }
  .section { padding: 65px 0; }
  .section-heading { gap: 25px; }
  .section-heading > p { max-width: 290px; font-size: 13px; }
  .capabilities { gap: 24px; }
  .capability h3 { font-size: 19px; }
  .capability p { font-size: 13px; }
  .workflow-layout { gap: 25px; }
  .workflow-panel { padding: 24px; }
  .service-card { padding: 24px 18px; }
  .service-card h3 { font-size: 20px; }
  .faq-layout { gap: 40px; grid-template-columns: .8fr 1.3fr; }
  .detail-hero-layout { gap: 35px; }
  .detail-aside { padding-left: 22px; }
  .delivery-row { grid-template-columns: 30px 1fr 1fr; gap: 22px; }
  .industry-grid { grid-template-columns: repeat(2,1fr); row-gap: 32px; }
}
@media (max-width: 620px) {
  .article-header { padding: 29px 0 42px; }
  .article-header .breadcrumb { margin-bottom: 39px; }
  .article-header h1 { font-size: clamp(34px,8.6vw,46px); }
  .article-deck { font-size: 15px; }
  .article-meta { margin-top: 22px; }
  .article-layout { padding-top: 38px; padding-bottom: 60px; }
  .article-body { font-size: 15px; }
  .article-lead { font-size: 16px; }
  .article-body section { margin-top: 42px; }
  .article-body h2 { font-size: 27px; }
  .article-body h3 { font-size: 18px; }
  .article-endnote { padding: 20px; }
  .article-next { padding: 46px 0; }
  :root { --gutter: 22px; }
  html { scroll-padding-top: 88px; }
  .header-inner { height: 68px; gap: 10px; }
  .brand-logo { width: 128px; }
  .header-actions { gap: 0; }
  .header-actions .button { min-height: 38px; padding: 8px 11px; font-size: 12px; }
  .header-actions .button .arrow { display: none; }
  .icon-button { width: 39px; }
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding: 35px 0; }
  .hero h1 { font-size: clamp(36px,9.6vw,54px); margin: 23px 0 20px; line-height: 1.38; }
  .hero-description { max-width: 390px; font-size: 14px; }
  .hero-positioning { font-size: 15px; }
  .hero-actions { margin-top: 24px; gap: 21px; }
  .hero-footnote { margin-top: 17px; }
  .answer-stage { padding: 20px; }
  .stage-top { margin-bottom: 18px; }
  .question { font-size: 14px; }
  .answer-card { padding: 20px; }
  .answer-text { font-size: 13px; }
  .stage-bottom { flex-direction: row; }
  .journey-inner { grid-template-columns: repeat(2,1fr); gap: 16px 30px; }
  .journey-step:nth-child(3)::after { display: none; }
  .section { padding: 52px 0; }
  .section-heading { display: block; margin-bottom: 30px; }
  .section-heading h2, .section-title { font-size: 30px; margin-top: 14px; }
  .section-heading > p { margin-top: 17px; max-width: 100%; }
  .capabilities { grid-template-columns: 1fr; gap: 28px; }
  .capability { padding-top: 17px; }
  .capability-top { margin-bottom: 14px; }
  .capability h3 { font-size: 22px; }
  .capability p { font-size: 14px; }
  .capability-label { margin-top: 16px; }
  .workflow-section { padding: 52px 0; }
  .workflow-layout { display: flex; flex-direction: column; gap: 19px; margin-top: 27px; }
  .workflow-tabs { flex-direction: row; border: 1px solid var(--md-border); border-radius: 4px; overflow: hidden; }
  .workflow-tab { display: flex; flex: 1; flex-direction: column; gap: 8px; padding: 14px 4px; font-size: 13px; border-bottom: 0; }
  .workflow-tab:not(:last-child) { border-right: 1px solid var(--md-border); }
  .workflow-tab b { display: none; }
  .workflow-tab[aria-selected='true']::before { top: auto; right: 0; width: auto; height: 3px; }
  .workflow-panel { padding: 22px 19px; min-height: 352px; }
  .panel-heading { gap: 12px; }
  .panel-heading h3 { font-size: 18px; }
  .evidence-row { padding: 10px; gap: 10px; font-size: 11px; }
  .service-section { padding: 52px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { padding: 28px; }
  .service-card + .service-card { border-left: 0; border-top: 1px solid #536b5e; }
  .service-card h3 { font-size: 24px; margin-top: 15px; }
  .service-card > p { min-height: auto; }
  .service-items { margin: 17px 0; }
  .faq-layout { grid-template-columns: 1fr; gap: 30px; }
  .faq-intro p:not(.eyebrow) { max-width: 100%; margin-top: 13px; }
  .faq-intro .text-link { margin-top: 14px; }
  .faq-list summary { font-size: 14px; }
  .closing { padding: 40px 0; }
  .closing-inner { flex-direction: column; align-items: flex-start; gap: 25px; }
  .closing h2 { font-size: 29px; }
  .site-footer { padding-top: 33px; }
  .footer-main { flex-direction: column; gap: 23px; padding-bottom: 27px; }
  .footer-links { flex-wrap: wrap; gap: 13px 25px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .detail-hero { padding: 29px 0 42px; }
  .breadcrumb { margin-bottom: 28px; }
  .detail-hero-layout { grid-template-columns: 1fr; gap: 30px; }
  .detail-hero h1 { font-size: 38px; }
  .detail-hero .hero-description { font-size: 14px; }
  .detail-aside { margin: 0; padding-left: 18px; }
  .detail-aside > p { margin: 7px 0; }
  .comparison { grid-template-columns: 1fr; gap: 16px; }
  .compare-card { padding: 25px; }
  .compare-row { font-size: 12px; grid-template-columns: 60px 1fr; }
  .delivery-row { grid-template-columns: 24px 1fr; gap: 10px 18px; padding-block: 26px; }
  .delivery-output { grid-column: 2; }
  .delivery-row h3 { font-size: 21px; }
  .delivery-output span { font-size: 11px; }
  .distribution-grid { grid-template-columns: repeat(2,1fr); gap: 26px; }
  .distribution-step { padding-right: 0; }
  .distribution-step + .distribution-step { padding-left: 0; border-left: 0; }
  .distribution-step h3 { font-size: 18px; }
  .channel-strip { gap: 10px 20px; padding: 18px; flex-wrap: wrap; }
  .channel-strip span:first-child { width: 100%; }
  .model-row { grid-template-columns: 1fr 1fr; gap: 9px; }
  .model-row p { grid-column: 1 / -1; grid-row: 2; }
  .model-row .model-code { text-align: right; }
  .industry-grid { gap: 28px 22px; }
  .industry h3 { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .button:active, .icon-button:active { transform: none; }
}