:root{color-scheme:light dark;--paper:#f5f4ef;--ink:#172621;--muted:#53645b;--line:#ccd5cc;--accent:#115e59;--wash:#e5ece4;--button:#115e59;--button-ink:#fff;font-family:"Segoe UI",system-ui,sans-serif;background:var(--paper);color:var(--ink);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:.25em}a:hover{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}p{line-height:1.8}img{display:block;max-width:100%;height:auto}h1,h2,p{overflow-wrap:anywhere}h1,h2{font-family:Georgia,"Noto Serif CJK SC",serif;font-weight:500;letter-spacing:-.035em}h1{font-size:clamp(2.4rem,5.8vw,5rem);line-height:1.12;margin:1rem 0 1.5rem;max-width:18ch}h2{font-size:clamp(1.5rem,3vw,2rem);line-height:1.3;margin:0 0 1rem}main,.masthead,.topics,body>footer{max-width:1160px;margin:auto;padding-left:40px;padding-right:40px}.masthead{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:106px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:650;font-size:21px;letter-spacing:-.04em}.brand span{margin-left:24px;color:var(--line);font-weight:300}.button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:10px 22px;background:var(--button);color:var(--button-ink);border-radius:7px;font-weight:600;text-decoration:none;text-align:center}.button:hover{color:var(--button-ink);filter:brightness(1.12)}.topics{display:flex;gap:4px 24px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-top:6px;padding-bottom:16px}.topics a,.related a:not(.button),.languages a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none}.topics a[aria-current],.languages a[aria-current]{text-decoration:underline;text-decoration-thickness:2px;color:var(--accent)}.hero{padding-top:70px;padding-bottom:52px}.eyebrow{color:var(--accent);font-size:13px;font-weight:650;letter-spacing:.06em}.lead{max-width:760px;color:var(--muted);font-size:19px}.comparison{margin:0 0 60px;display:grid;grid-template-columns:1fr 1fr;gap:20px}.comparison>div{background:var(--wash);border:1px solid var(--line);padding:18px;border-radius:10px}.comparison span{display:block;color:var(--muted);font-size:13px;padding-bottom:18px}.comparison img{width:100%;border-radius:6px}.comparison figcaption{grid-column:1/-1;font-size:13px;line-height:1.7;color:var(--muted)}.sections{border-top:1px solid var(--line)}.section{display:grid;grid-template-columns:1fr 3fr;gap:32px;padding:38px 0;border-bottom:1px solid var(--line)}.section-number{font-family:Georgia,serif;font-size:32px;color:var(--accent)}.section p{margin:0;color:var(--muted);max-width:70ch;font-size:17px}.compatibility{padding:28px 0;font-size:13px;color:var(--muted)}.related{background:var(--wash);padding:32px;margin:18px 0 60px;border-radius:10px}.related nav{display:flex;gap:4px 24px;flex-wrap:wrap;margin-bottom:20px}.languages{display:flex;gap:4px 22px;flex-wrap:wrap}body>footer{border-top:1px solid var(--line);padding-top:22px;padding-bottom:32px;font-size:13px;color:var(--muted)}.skip{position:absolute;left:20px;top:-100px;background:var(--paper);padding:14px;z-index:2}.skip:focus{top:12px}
@media(prefers-color-scheme:dark){:root{--paper:#141b18;--ink:#eef2ec;--muted:#b4c2b9;--line:#3e5145;--accent:#9fe4cb;--wash:#1e2b24;--button:#afe6d0;--button-ink:#132b21}}
@media(max-width:640px){main,.masthead,.topics,body>footer{padding-left:20px;padding-right:20px}.masthead{min-height:88px;gap:12px}.brand{font-size:18px;gap:8px}.brand img{width:28px}.brand span{display:none}.masthead .button{font-size:13px;padding:10px 14px}.hero{padding-top:40px;padding-bottom:32px}.lead{font-size:17px}.comparison{grid-template-columns:1fr;gap:14px;margin-bottom:36px}.section{grid-template-columns:32px 1fr;gap:12px;padding:28px 0}.section-number{font-size:23px}.section p{font-size:16px}.related{padding:22px}.topics{column-gap:18px;font-size:14px}}