.letter-hero {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 260px;
	gap: 64px;
	align-items: center;
	padding-block: 76px 56px;
}
.letter-intro h1 {
	margin: 0;
	font: 500 clamp(38px, 4.6vw, 64px)/1.08 var(--display);
	letter-spacing: -.035em;
}
.letter-intro h1 span { color: var(--cyan); }
.letter-lead { margin: 28px 0 0; color: var(--muted); font-size: 19px; }
.letter-profile { margin: 0; text-align: center; }
.letter-profile img { display: block; width: 100%; height: auto; border-radius: 50%; border: 1px solid var(--line); }
.letter-profile p { margin: 20px 0 0; color: var(--muted); font-size: 16px; }
.letter-toc { display: flex; flex-wrap: wrap; gap: 12px 28px; padding-block: 20px; border-top: 1px solid var(--line); }
.letter-toc a { color: var(--muted); font-size: 15px; }
.letter-toc span { color: var(--pink); margin-right: 8px; }
.letter-toc a:hover { color: var(--cyan); }
.letter-section { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; padding-block: 64px; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.letter-heading { position: sticky; top: 112px; align-self: start; }
.letter-heading .section-index { margin-bottom: 16px; }
.letter-heading h2 { margin: 0; font: 500 38px/1.12 var(--display); letter-spacing: -.025em; }
.answer-list { list-style: none; padding: 0; margin: 0; }
.answer-list li { display: grid; grid-template-columns: 155px minmax(0, 1fr); gap: 24px; padding-block: 10px; }
.answer-list li:first-child { padding-top: 0; }
.answer-list li:last-child { padding-bottom: 0; }
.answer-list h3 { margin: 0; color: var(--cyan); font: 500 18px/1.45 var(--display); }
.letter-content p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.6; overflow-wrap: break-word; }
.letter-content strong { color: var(--text); font-weight: 600; }
.expertise-card { padding: 26px; border: 1px solid var(--line); border-left: 3px solid var(--pink); background: linear-gradient(120deg, rgba(236,22,99,.05), transparent 65%); }
.expertise-card + .expertise-card { margin-top: 20px; }
.expertise-card h3 { margin: 0 0 14px; color: var(--cyan); font: 500 23px/1.25 var(--display); }
.letter-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding-block: 28px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 16px; }
@media screen and (max-width: 960px) {
	.letter-hero { grid-template-columns: minmax(0, 1fr) 190px; gap: 32px; }
	.letter-section { grid-template-columns: 190px minmax(0, 1fr); gap: 32px; }
	.letter-heading h2 { font-size: 30px; }
	.answer-list li { grid-template-columns: 1fr; gap: 8px; }
	.network-letter .nav-links { display: flex; gap: 18px; }
	.network-letter .nav-links > a:not(.nav-cta) { display: none; }
}
@media screen and (max-width: 600px) {
	.network-letter .page-shell { width: calc(100% - 36px); }
	.network-letter .site-nav { min-height: 66px; gap: 12px; }
	.network-letter .brand { font-size: 17px; gap: 4px; }
	.network-letter .brand img { width: 36px; height: 36px; margin: 0; }
	.network-letter .brand > span:not(.brand-page) { display: none; }
	.network-letter .brand .brand-page { display: inline; font-size: 15px; }
	.network-letter .nav-links { font-size: 13px; }
	.letter-hero { grid-template-columns: 1fr; padding-block: 42px 30px; gap: 24px; }
	.letter-profile { display: none; }
	.letter-intro h1 { font-size: clamp(32px, 8vw, 46px); }
	.letter-lead { font-size: 17px; margin-top: 22px; }
	.letter-toc { gap: 10px 18px; }
	.letter-section { grid-template-columns: 1fr; gap: 28px; padding-block: 38px; scroll-margin-top: 80px; }
	.letter-heading { position: static; }
	.letter-heading .section-index { margin-bottom: 8px; }
	.letter-content p { font-size: 16px; }
	.expertise-card { padding: 20px; }
}
@media print {
	@page { size: A4; margin: 0; }
	html:has(.network-letter), body.network-letter { background: var(--bg) !important; color: var(--text); print-color-adjust: exact; -webkit-print-color-adjust: exact; }
	.network-letter .site-header, .network-letter .skip-link, .letter-toc, .network-letter .hero-actions { display: none; }
	.network-letter .page-shell { width: calc(100% - 24mm); margin: 0 12mm; padding-inline: 0; }
	.letter-hero { grid-template-columns: minmax(0, 1fr) 32mm; gap: 8mm; padding-block: 12mm 8mm; }
	.letter-intro h1 { font-size: 27pt; }
	.letter-lead, .letter-content p { font-size: 10.5pt; line-height: 1.45; color: var(--muted); }
	.letter-profile p, .eyebrow { font-size: 9pt; }
	.letter-section { display: block; padding-block: 5mm; }
	.letter-heading { position: static; margin-bottom: 3mm; break-after: avoid; }
	.letter-heading .section-index { display: none; }
	.letter-heading h2 { font-size: 21pt; }
	.answer-list li { grid-template-columns: 34mm minmax(0, 1fr); gap: 5mm; padding-block: 1.5mm; break-inside: avoid; }
	.answer-list h3 { font-size: 10.5pt; }
	.letter-content strong { color: var(--text); }
	.letter-intro h1 span, .answer-list h3, .expertise-card h3 { color: var(--cyan); }
	.expertise-card { padding: 5mm; break-inside: avoid; }
	.expertise-card h3 { font-size: 13pt; }
	#expertise { break-before: page; }
	#expertise { padding-block: 7mm 3mm; break-inside: avoid; }
	#expertise .letter-heading { margin-bottom: 3mm; }
	#expertise .expertise-card { padding: 3mm 4mm; }
	#expertise .expertise-card + .expertise-card { margin-top: 2mm; }
	#expertise .expertise-card h3 { margin-bottom: 2mm; }
	#expertise .expertise-card p { line-height: 1.4; }
	.letter-footer { font-size: 9pt; padding-block: 5mm 12mm; }
}