.manual-guide {
    --manual-ink: #172338;
    --manual-copy: #46546a;
    --manual-muted: #626f83;
    --manual-accent: #4f46e5;
    --manual-soft: #efedff;
    --manual-paper: #ffffff;
    --manual-panel: #f5f6fa;
    --manual-line: #dce1ea;
    --manual-radius: 6px;
    padding: 136px 0 96px;
    background: var(--manual-paper);
    color: var(--manual-ink);
    font-family: 'Pretendard', sans-serif;
}
.dark .manual-guide {
    --manual-ink: #edf0f7;
    --manual-copy: #c4cddd;
    --manual-muted: #a7b3c8;
    --manual-accent: #b0a7ff;
    --manual-soft: #2c2850;
    --manual-paper: #111a2b;
    --manual-panel: #19243a;
    --manual-line: #334159;
}
.manual-guide *, .manual-guide *::before, .manual-guide *::after { box-sizing: border-box; }
.manual-shell { width: min(1184px, calc(100% - 48px)); margin-inline: auto; }
.manual-guide a { color: inherit; }
.manual-guide a:focus-visible, .manual-guide summary:focus-visible {
    outline: 3px solid var(--manual-accent); outline-offset: 4px; border-radius: var(--manual-radius);
}
.manual-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 40px; color: var(--manual-muted); font-size: .875rem; }
.manual-breadcrumb a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: underline; text-underline-offset: 4px; }
.manual-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 64px; align-items: start; }
.manual-sidebar { position: sticky; top: 104px; }
.manual-label { margin: 0; color: var(--manual-accent); font-size: .75rem; font-weight: 700; letter-spacing: .06em; }
.manual-chapters > .manual-label { padding: 0 12px 16px; color: var(--manual-muted); }
.manual-chapters ol { list-style: none; margin: 0; padding: 0; }
.manual-chapters li + li { margin-top: 4px; }
.manual-chapters li a { display: grid; grid-template-columns: 24px 1fr; gap: 8px; align-items: start; min-height: 44px; padding: 12px; border-radius: var(--manual-radius); color: var(--manual-copy); font-size: .875rem; line-height: 1.5; word-break: keep-all; }
.manual-chapters li a:hover { background: var(--manual-panel); }
.manual-chapters li a[aria-current='page'] { background: var(--manual-soft); color: var(--manual-accent); font-weight: 700; }
.manual-chapter-number { color: var(--manual-muted); font-variant-numeric: tabular-nums; font-size: .75rem; padding-top: 2px; }
.manual-release-link { display: flex; align-items: center; justify-content: space-between; min-height: 52px; margin-top: 20px; padding: 12px; border-top: 1px solid var(--manual-line); font-size: .875rem; font-weight: 600; }
.manual-article { min-width: 0; max-width: 800px; }
.manual-heading { padding-bottom: 32px; border-bottom: 1px solid var(--manual-line); }
.manual-heading h1 { margin: 16px 0 0; color: var(--manual-ink); font-size: clamp(2rem, 3.2vw, 2.75rem); line-height: 1.22; font-weight: 750; letter-spacing: -.045em; word-break: keep-all; overflow-wrap: anywhere; }
.manual-deck { max-width: 660px; margin: 20px 0 0; color: var(--manual-copy); font-size: 1.125rem; line-height: 1.8; word-break: keep-all; }
.manual-mobile-toc { display: none; }
.manual-screen-guide { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; align-items: center; margin: 40px 0 64px; padding: 32px; background: var(--manual-panel); border-radius: var(--manual-radius); }
.manual-phone-figure { margin: 0; min-width: 0; }
.manual-phone-figure a { display: block; }
.manual-phone-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--manual-line); border-radius: var(--manual-radius); }
.manual-phone-figure figcaption { margin-top: 12px; color: var(--manual-muted); font-size: .75rem; line-height: 1.6; text-align: center; }
.manual-screen-copy h2 { margin: 12px 0 16px; font-size: 1.5rem; line-height: 1.35; letter-spacing: -.03em; font-weight: 700; word-break: keep-all; }
.manual-screen-copy > p:not(.manual-label) { margin: 0 0 24px; color: var(--manual-copy); font-size: 1rem; line-height: 1.8; word-break: keep-all; }
.manual-screen-copy ol, .manual-prose ol { counter-reset: manual-step; list-style: none; padding: 0; margin: 24px 0; }
.manual-screen-copy li, .manual-prose ol > li { position: relative; min-height: 32px; padding-inline-start: 44px; counter-increment: manual-step; color: var(--manual-copy); line-height: 1.8; word-break: keep-all; }
.manual-screen-copy li + li, .manual-prose ol > li + li { margin-top: 20px; }
.manual-screen-copy li::before, .manual-prose ol > li::before { content: counter(manual-step, decimal-leading-zero); position: absolute; inset-inline-start: 0; top: 0; display: grid; place-items: center; width: 30px; height: 30px; border-radius: var(--manual-radius); background: var(--manual-soft); color: var(--manual-accent); font-size: .75rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.manual-text-link { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; margin-top: 8px; color: var(--manual-accent) !important; text-decoration: underline; text-underline-offset: 5px; font-size: .875rem; font-weight: 600; }
.manual-detailed-guide { scroll-margin-top: 112px; }
.manual-prose { max-width: 720px; margin-top: 40px; color: var(--manual-copy); font-size: 1.0625rem; line-height: 1.9; overflow-wrap: anywhere; word-break: keep-all; }
.manual-prose > :first-child { margin-top: 0; }
.manual-prose h2 { margin: 56px 0 24px; padding-top: 24px; border-top: 1px solid var(--manual-line); color: var(--manual-ink); font-size: 1.625rem; font-weight: 750; line-height: 1.35; letter-spacing: -.025em; }
.manual-prose h2:first-child { border-top: 0; padding-top: 0; }
.manual-prose h3, .manual-prose h4 { margin: 32px 0 16px; color: var(--manual-ink); font-size: 1.25rem; font-weight: 700; line-height: 1.4; }
.manual-prose p { margin: 16px 0; }
.manual-prose strong { color: var(--manual-ink); font-weight: 750; }
.manual-prose ul { margin: 24px 0; padding-inline-start: 24px; list-style: disc; }
.manual-prose ul > li { padding-inline-start: 8px; margin: 12px 0; }
.manual-prose ul > li::marker { color: var(--manual-accent); }
.manual-prose li > p { margin: 0; }
.manual-prose ol + p { padding: 20px 24px; margin: 32px 0; background: var(--manual-panel); border-radius: var(--manual-radius); font-size: 1rem; }
.manual-prose a { color: var(--manual-accent); text-decoration: underline; text-underline-offset: 4px; }
.manual-prose blockquote { margin: 32px 0; padding: 16px 24px; border-inline-start: 3px solid var(--manual-accent); background: var(--manual-panel); }
.manual-prose img, .manual-prose video { max-width: 100%; height: auto; margin: 24px 0; border-radius: var(--manual-radius); }
.manual-prose pre { overflow-x: auto; padding: 24px; background: var(--manual-panel); border-radius: var(--manual-radius); }
.manual-prose code { font-size: .875em; }
.manual-article > nav { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--manual-line); }
.manual-article > nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--manual-accent); line-height: 1.5; }
.manual-release-shell { max-width: 920px; }
.manual-release-list { margin: 48px 0 0; padding: 0; list-style: none; }
.manual-release { padding: 0 0 48px; margin: 0 0 40px; border-bottom: 1px solid var(--manual-line); }
.manual-release-heading { display: flex; flex-wrap: wrap; align-items: baseline; gap: 16px; }
.manual-release-heading h2 { margin: 0; color: var(--manual-ink); font-size: 1.5rem; font-weight: 700; letter-spacing: -.025em; }
.manual-release-heading time { color: var(--manual-muted); font-size: .875rem; }
.manual-release .manual-prose { margin-top: 20px; }
.manual-empty { margin-top: 40px; padding: 32px; background: var(--manual-panel); color: var(--manual-copy); border-radius: var(--manual-radius); line-height: 1.8; }
@media (max-width: 1100px) {
    .manual-layout { grid-template-columns: 216px minmax(0, 1fr); gap: 32px; }
    .manual-screen-guide { grid-template-columns: 180px minmax(0, 1fr); padding: 24px; gap: 24px; }
}
@media (max-width: 800px) {
    .manual-guide { padding-top: 104px; padding-bottom: 64px; }
    .manual-shell { width: calc(100% - 40px); }
    .manual-breadcrumb { margin-bottom: 24px; gap: 8px; font-size: .8125rem; }
    .manual-layout { display: block; }
    .manual-sidebar { display: none; }
    .manual-heading { padding-bottom: 24px; }
    .manual-heading h1 { font-size: 2rem; }
    .manual-deck { margin-top: 16px; font-size: 1rem; }
    .manual-mobile-toc { display: block; margin-top: 24px; border-block: 1px solid var(--manual-line); }
    .manual-mobile-toc summary { min-height: 48px; padding: 12px 0; color: var(--manual-copy); font-size: .875rem; cursor: pointer; }
    .manual-mobile-toc .manual-chapters { padding: 16px 0; }
    .manual-screen-guide { display: flex; flex-direction: column; align-items: stretch; margin: 24px 0 40px; padding: 24px; gap: 32px; }
    .manual-screen-copy { order: -1; }
    .manual-phone-figure { width: min(248px, 100%); margin-inline: auto; }
    .manual-prose { font-size: 1rem; line-height: 1.9; }
    .manual-prose h2 { margin-top: 40px; font-size: 1.375rem; }
    .manual-prose ol + p { padding: 16px 20px; }
    .manual-release-list { margin-top: 32px; }
}
@media (prefers-reduced-motion: reduce) {
    .manual-guide *, .manual-guide *::before, .manual-guide *::after { scroll-behavior: auto; animation: none; transition: none; }
}