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-apple-system, "Segoe UI", Roboto, sans-serif;font-feature-settings:"ss01" 0;color:var(--ink-800);background:var(--page);line-height:1.6}.study:lang(ja){font-family:var(--font-jakarta), "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", "Noto Sans CJK JP", system-ui, sans-serif}.study:lang(zh){font-family:var(--font-jakarta), "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Noto Sans CJK SC", system-ui, sans-serif}@layer base{html:has(.study) body{background:#fff}.study :where(h1,h2,h3,h4,h5,h6){font-family:inherit;font-size:inherit;letter-spacing:-.015em;color:var(--ink-950);text-wrap:balance;font-weight:700;line-height:1.2}.study ::selection{background:var(--sun-300);color:var(--ink-950)}.study :where(a,button,summary,select,input,[tabindex]):focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}.study :where([id]){scroll-margin-top:var(--s-sticky-offset)}}@layer components{.s-container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:20px}@media (min-width:640px){.s-container{padding-inline:28px}}@media (min-width:1024px){.s-container{padding-inline:40px}}.s-section{padding-block:64px}@media (min-width:1024px){.s-section{padding-block:104px}}.s-graph{isolation:isolate;position:relative}.s-graph:before{content:"";z-index:-1;pointer-events:none;background-image:linear-gradient(90deg,#5537db12 1px,#0000 1px),linear-gradient(#5537db12 1px,#0000 1px);background-position:-1px -1px;background-size:28px 28px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(120% 90% at 50% 0,#000 30%,#0000 80%);mask-image:radial-gradient(120% 90% at 50% 0,#000 30%,#0000 80%)}.s-header{transition:transform .2s var(--ease)}.s-jumpbar{top:0}@media (max-width:1023.98px){html[data-s-header=hidden] .s-header{transform:translateY(-100%)}}@media 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