.customer-guide .guide-hero{border-bottom:1px solid var(--color-line);background:var(--color-surface-muted)}.customer-guide .guide-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,.58fr);align-items:end;gap:clamp(44px,7vw,100px)}.customer-guide .guide-hero h1{max-width:920px}.customer-guide .updated{margin-top:24px;color:var(--color-text-soft);font-size:.78rem;font-weight:700}.quick-answer{padding:clamp(28px,4vw,38px);border-radius:var(--radius-lg);background:var(--color-brand);color:var(--color-inverse-text)}.quick-answer>span{color:var(--color-action-on-dark);font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.quick-answer>strong{display:block;margin-top:18px;color:var(--color-inverse-text);font-size:clamp(1.15rem,2vw,1.45rem);line-height:1.45}.quick-answer ul{display:grid;gap:12px;margin:24px 0 0;padding:20px 0 0 1.15rem;border-top:1px solid rgb(var(--rgb-inverse-text) / .24)}.quick-answer li{color:var(--color-inverse-muted);line-height:1.55}.audience-section{background:var(--color-brand-subtle)}.audience-grid,.boundary-grid,.faq-layout{display:grid;grid-template-columns:minmax(0,.62fr) minmax(400px,1fr);gap:clamp(48px,9vw,128px)}.audience-grid h2{margin-bottom:0}.audience-grid ul,.boundary-grid ul{display:grid;gap:14px;margin:0;padding-left:1.2rem}.audience-grid li,.boundary-grid li{line-height:1.7}.guide-block{background:var(--color-canvas)}.guide-block.alternate{background:var(--color-surface-muted)}.block-heading{max-width:820px;margin-bottom:34px}.block-heading h2{max-width:820px}.block-heading>p:last-child{max-width:760px;color:var(--color-text-soft);font-size:1.03rem;line-height:1.75}.action-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.action-card{min-height:205px;padding:28px;border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface)}.action-card>span,.scenario-card>span{color:var(--color-action);font-size:.72rem;font-weight:800}.action-card h3,.scenario-card h3{margin:20px 0 10px;font-size:1.3rem}.action-card p,.scenario-card p{margin:0;color:var(--color-text-muted);line-height:1.65}.customer-checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none}.customer-checklist li{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start;padding:20px;border:1px solid var(--color-line);border-radius:var(--radius-sm);background:var(--color-surface)}.customer-checklist li>.inspection-icon{width:22px;height:22px;border-radius:50%}.customer-checklist li>.inspection-icon svg{width:14px;height:14px}.customer-checklist p{margin:0;color:var(--color-text-soft);line-height:1.6}.comparison-grid,.scenario-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.comparison-card,.scenario-card{padding:28px;border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface)}.comparison-card{border-top:5px solid var(--color-brand-muted)}.comparison-card.tone-inspection{border-top-color:var(--color-action)}.comparison-card.tone-specialist{border-top-color:var(--color-warning)}.comparison-card h3{margin:0;font-size:1.28rem}.comparison-card ul{display:grid;gap:13px;margin:22px 0 0;padding-left:1.1rem}.comparison-card li{color:var(--color-text-muted);line-height:1.6}.scenario-card strong{display:block;margin-top:22px;color:var(--color-text);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.scenario-card strong+p{margin-top:8px}.copy-tool{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px 28px;align-items:end;padding:clamp(24px,4vw,36px);border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-surface)}.copy-tool pre{grid-column:1 / -1;overflow-x:auto;margin:0;padding:24px;border-radius:var(--radius-sm);background:var(--color-brand-subtle);color:var(--color-text-soft);font:inherit;font-size:.92rem;line-height:1.65;white-space:pre-wrap}.copy-status{min-height:1.4em;margin:0;color:var(--color-text-muted);font-size:.82rem}.technical-note{max-width:900px;padding:clamp(26px,5vw,44px);border-left:5px solid var(--color-action);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--color-surface)}.technical-note p{margin:0;color:var(--color-text-soft);font-size:1.03rem;line-height:1.75}.technical-note p+p{margin-top:16px}.download-section{background:var(--color-brand-subtle)}.download-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:40px;padding:clamp(30px,5vw,48px);border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-surface)}.download-card h2{margin-bottom:10px}.download-card p:last-child{margin:0;color:var(--color-text-muted)}.boundary-section{background:var(--color-dark-surface);color:var(--color-inverse-text)}.boundary-section h2{color:var(--color-inverse-text)}.boundary-section p,.boundary-section li{color:var(--color-inverse-muted)}.boundary-section p{line-height:1.75}.reviewer-section{background:var(--color-canvas)}.reviewer-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:26px;align-items:center;max-width:900px}.reviewer-card>div:first-child{display:grid;width:78px;height:78px;place-items:center;border-radius:50%;background:var(--color-brand)}.reviewer-card>div:first-child span{color:var(--color-inverse-text);font-size:1.25rem;font-weight:800}.reviewer-card h2{margin:0 0 8px;font-size:clamp(1.6rem,3vw,2.4rem)}.reviewer-card strong{display:block;color:var(--color-action)}.reviewer-card p:last-child{margin:8px 0 0;color:var(--color-text-muted)}.related-section{background:var(--color-surface-muted)}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related-grid a{position:relative;display:flex;min-height:170px;flex-direction:column;padding:26px 48px 26px 26px;border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);text-decoration:none}.related-grid strong{color:var(--color-text)}.related-grid span{margin-top:10px;color:var(--color-text-muted);font-size:.8rem;line-height:1.55}.related-grid em{position:absolute;right:24px;bottom:22px;color:var(--color-action);font-style:normal}.faq-section{background:var(--color-canvas)}.final-band{background:var(--color-brand-subtle)}.final-band-inner p{max-width:760px;line-height:1.65}@media(max-width:820px){.customer-guide .guide-hero-inner,.audience-grid,.boundary-grid,.faq-layout,.comparison-grid,.scenario-grid{grid-template-columns:1fr}.action-grid,.customer-checklist,.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.action-grid,.customer-checklist,.related-grid,.download-card,.final-band-inner,.copy-tool{grid-template-columns:1fr}.action-card{min-height:0}.copy-tool pre{grid-column:1}.download-card .button{width:100%}.reviewer-card{align-items:start}}