:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans SC", sans-serif; color: #26304b; background: #f8f7fd; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.75; }
a { color: #5c45bd; }
a:hover { color: #3e2c8a; }
a:focus-visible { outline: 3px solid #745af2; outline-offset: 3px; }
.skip { position: absolute; left: -9999px; top: 8px; padding: 8px 12px; background: white; z-index: 10; }
.skip:focus { left: 8px; }
.site-header { background: #fff; border-bottom: 1px solid #e9e5f5; }
.header-inner, .page, .site-footer-inner { width: min(100% - 40px, 1040px); margin: auto; }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: #503ab6; text-decoration: none; font-size: 20px; font-weight: 850; white-space: nowrap; }
.brand small { display: block; font-size: 11px; color: #77708d; font-weight: 650; line-height: 1.2; }
.header-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; font-size: 14px; font-weight: 650; }
.header-nav a { text-decoration: none; }
.page { padding: 22px 0 72px; }
.crumbs { font-size: 13px; color: #77708d; margin: 0 0 22px; }
.crumbs a { color: inherit; }
.hero { padding: clamp(28px, 5vw, 60px); background: linear-gradient(120deg, #f2eeff, #fff8fc); border: 1px solid #e6dffd; border-radius: 28px; }
.eyebrow { color: #6953bd; font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1 { font-size: clamp(30px, 4vw, 46px); line-height: 1.3; margin: 10px 0 16px; letter-spacing: -.02em; }
.summary { font-size: clamp(16px, 2vw, 19px); color: #3e4260; max-width: 750px; margin: 0; }
.updated { font-size: 12px; color: #77708d; margin: 20px 0 0; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 220px; align-items: start; gap: 36px; padding-top: 40px; }
article { min-width: 0; }
article section { margin: 0 0 38px; }
h2 { font-size: 25px; line-height: 1.35; margin: 0 0 15px; }
h3 { font-size: 18px; margin: 20px 0 6px; }
p { margin: 0 0 14px; }
ul, ol { padding-left: 1.5em; margin: 10px 0 18px; }
li + li { margin-top: 7px; }
.lead { font-size: 17px; font-weight: 650; }
.note { background: #fff; border-left: 4px solid #8a73e9; padding: 15px 18px; border-radius: 0 12px 12px 0; }
.steps { display: grid; gap: 14px; padding: 0; list-style: none; }
.steps li { margin: 0; background: #fff; border: 1px solid #e9e5f5; border-radius: 16px; padding: 18px 20px; }
.steps strong { display: block; margin-bottom: 4px; }
.steps p { margin-bottom: 0; }
.shot { margin: 24px 0; }
.shot img { width: 100%; height: auto; border: 1px solid #e5e2f0; border-radius: 14px; box-shadow: 0 12px 35px #33256813; }
.shot figcaption { color: #6b687e; font-size: 13px; margin-top: 8px; }
.toc { position: sticky; top: 20px; background: #fff; border: 1px solid #e9e5f5; border-radius: 16px; padding: 18px; font-size: 13px; }
.toc strong { display: block; margin-bottom: 8px; }
.toc a { display: block; padding: 4px 0; text-decoration: none; }
.related { background: #fff; border: 1px solid #e9e5f5; border-radius: 18px; padding: 22px; }
.related h2 { font-size: 20px; }
.related a { display: inline-block; margin-right: 20px; }
.site-footer { background: #fff; border-top: 1px solid #e9e5f5; padding: 26px 0; color: #6b687e; font-size: 13px; }
.site-footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; }
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; } .toc { position: static; grid-row: 1; } .header-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; } }