.technical-page { background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px); background-size: 80px 80px; background-attachment: fixed; }
.technical-page .site-header { background: color-mix(in srgb, var(--bg) 94%, transparent); }
.technical-page nav .current { color: var(--green); }
.guide-hero { padding: 100px 0 70px; border-bottom: 1px solid var(--line); }
.guide-hero h1 { margin: 14px 0 20px; font-size: clamp(48px, 7vw, 86px); line-height: 1; letter-spacing: -.065em; }
.guide-hero > p:not(.eyebrow) { max-width: 790px; color: var(--muted); font-size: 17px; }
.guide-notice { max-width: 900px; margin-top: 35px; padding: 18px 20px; display: grid; grid-template-columns: 100px 1fr; gap: 20px; border-left: 3px solid var(--green); background: var(--surface); }
.guide-notice strong { color: var(--green); font: 500 11px var(--mono); }
.guide-notice span { color: var(--muted); font-size: 13px; }
.guide-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 70px; align-items: start; padding-block: 70px 120px; }
.guide-toc { position: sticky; top: 95px; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.guide-toc > span { padding: 15px 0; color: var(--green); font: 500 10px var(--mono); letter-spacing: .12em; border-bottom: 1px solid var(--line); }
.guide-toc a { padding: 9px 0; color: var(--muted); font-size: 12px; border-bottom: 1px solid var(--line-soft); }
.guide-toc a:hover, .guide-toc a.is-current { color: var(--green); }
.guide-content { min-width: 0; }
.guide-chapter { scroll-margin-top: 95px; padding-bottom: 85px; margin-bottom: 85px; border-bottom: 1px solid var(--line); }
.guide-chapter:last-child { border-bottom: 0; margin-bottom: 0; }
.chapter-label { color: var(--green); font: 500 11px var(--mono); letter-spacing: .11em; }
.guide-content h2 { margin: 12px 0 25px; font-size: clamp(31px, 4vw, 47px); line-height: 1.1; letter-spacing: -.045em; }
.guide-content h3 { margin: 36px 0 13px; font-size: 20px; letter-spacing: -.02em; }
.guide-content p, .guide-content li { color: var(--muted); }
.guide-content li { margin-bottom: 8px; }
.guide-content li strong { color: var(--text); }
.guide-content code { color: var(--yellow); font-family: var(--mono); }
.guide-content pre { margin: 25px 0; padding: 23px; border: 1px solid var(--line); background: var(--surface); overflow-x: auto; }
.guide-content pre code { color: var(--text); font-size: 12px; line-height: 1.7; }
.guide-content table { width: 100%; margin: 22px 0; border-collapse: collapse; font-size: 13px; }
.guide-content th, .guide-content td { padding: 13px 15px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-content th { color: var(--green); background: var(--surface); font: 500 10px var(--mono); letter-spacing: .08em; }
.guide-content td { color: var(--muted); }
.guide-content td:first-child { color: var(--text); }
.stack-diagram { margin: 35px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stack-diagram div { padding: 18px; border: 1px solid var(--line); background: var(--surface); }
.stack-diagram .wide { grid-column: 1 / -1; border-color: var(--green); }
.stack-diagram .hardware-row { border-color: var(--blue); }
.stack-diagram span, .context-grid span { display: block; margin-bottom: 5px; color: var(--muted); font: 500 10px var(--mono); }
.stack-diagram strong { font-size: 13px; }
.el-grid { margin: 28px 0; display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.el-grid div { padding: 20px; border-right: 1px solid var(--line); }
.el-grid div:last-child { border-right: 0; }
.el-grid span { color: var(--green); font: 500 12px var(--mono); }
.el-grid strong, .el-grid small { display: block; }
.el-grid strong { margin: 14px 0 5px; }
.el-grid small { color: var(--muted); }
.callout { margin: 28px 0; padding: 20px 23px; border-left: 3px solid var(--green); background: var(--surface); }
.callout.warning { border-color: var(--orange); }
.callout strong { color: var(--green); font: 500 11px var(--mono); letter-spacing: .06em; }
.callout.warning strong { color: var(--orange); }
.callout p { margin-bottom: 0; }
.sequence-list { margin: 30px 0; padding: 0; list-style: none; }
.sequence-list li { display: grid; grid-template-columns: 50px 1fr; gap: 14px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.sequence-list li > span { color: var(--green); font: 500 11px var(--mono); }
.sequence-list p { margin: 3px 0 0; }
.address-flow, .lifecycle { margin: 32px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.address-flow div, .lifecycle span { flex: 1; padding: 18px; border: 1px solid var(--line); background: var(--surface); text-align: center; }
.address-flow span { display: block; color: var(--green); font: 500 10px var(--mono); }
.address-flow strong { display: block; margin-top: 5px; font-family: var(--mono); }
.address-flow b, .lifecycle b { flex: 0 0 auto; color: var(--green); font: 500 11px var(--mono); text-align: center; }
.address-flow small { color: var(--muted); }
.context-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 28px 0; }
.context-grid div { padding: 18px; border: 1px solid var(--line); background: var(--surface); }
.context-grid strong { display: block; margin-bottom: 7px; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 28px 0; }
.compare-grid > div { padding: 26px; border: 1px solid var(--line); background: var(--surface); }
.compare-grid > div:first-child { border-color: var(--blue); }
.compare-grid > div:last-child { border-color: var(--orange); }
.compare-grid > div > span { color: var(--green); font: 500 10px var(--mono); letter-spacing: .1em; }
.compare-grid h3 { margin-top: 14px; }
.experiment-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 30px; }
.experiment-list article { padding: 22px; border: 1px solid var(--line); background: var(--surface); }
.experiment-list span { color: var(--green); font: 500 10px var(--mono); }
.experiment-list h3 { margin: 13px 0 8px; }
.experiment-list p { margin: 0 0 18px; }
.experiment-list strong { font-size: 12px; }
.guide-end { margin-top: 55px; padding-top: 30px; border-top: 1px solid var(--line); }
.guide-end .button { margin: 10px 8px 0 0; }
@media (max-width: 900px) {
  .guide-layout { grid-template-columns: 1fr; gap: 40px; }
  .guide-toc { position: static; display: grid; grid-template-columns: 1fr 1fr; }
  .guide-toc > span { grid-column: 1 / -1; }
  .guide-toc a { padding-right: 10px; }
  .el-grid { grid-template-columns: 1fr; }
  .el-grid div { border-right: 0; border-bottom: 1px solid var(--line); }
  .el-grid div:last-child { border-bottom: 0; }
  .address-flow { align-items: stretch; flex-direction: column; }
  .address-flow div { width: 100%; }
  .lifecycle { flex-wrap: wrap; justify-content: flex-start; }
  .lifecycle span { flex-basis: 25%; }
}
@media (max-width: 600px) {
  .guide-hero { padding-top: 65px; }
  .guide-notice { grid-template-columns: 1fr; gap: 5px; }
  .guide-toc, .stack-diagram, .context-grid, .compare-grid, .experiment-list { grid-template-columns: 1fr; }
  .stack-diagram .wide, .guide-toc > span { grid-column: auto; }
  .guide-content table { display: block; overflow-x: auto; white-space: nowrap; }
  .guide-content pre { padding: 16px; }
}