:root{--bg:#fff;--fg:#1c1c1e;--muted:#6b6b70;--accent:#2a4f86;--line:#e5e5ea}
@media (prefers-color-scheme:dark){:root{--bg:#111216;--fg:#f2f2f7;--muted:#a1a1a8;--accent:#f08a34;--line:#2b2c33}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 20px 64px}header{display:flex;align-items:center;gap:12px;margin-bottom:24px}
header img{width:48px;height:48px;border-radius:11px}header a{color:var(--fg);text-decoration:none;font-weight:700;font-size:22px}
h1{font-size:30px;line-height:1.2;margin:8px 0 4px}h2{font-size:20px;margin:28px 0 6px}p,li{color:var(--fg)}.muted{color:var(--muted);font-size:15px}
a{color:var(--accent)}nav{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}nav a{margin-right:16px}
.lead{font-size:19px;color:var(--muted);margin-top:4px}.pill{display:inline-block;padding:4px 12px;border-radius:99px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-weight:600;font-size:14px}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 8px;padding:0;list-style:none}.toc a{display:block;padding:6px 12px;border:1px solid var(--line);border-radius:99px;text-decoration:none;font-size:15px}
.step{display:grid;grid-template-columns:1fr 220px;gap:28px;align-items:start;margin:36px 0;padding-top:28px;border-top:1px solid var(--line)}.step:nth-of-type(even){grid-template-columns:220px 1fr}.step:nth-of-type(even) .shots{order:-1}
.step h2{margin-top:0}.num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-size:15px;font-weight:700;margin-right:8px;vertical-align:2px}
.shots{display:flex;gap:12px}.shots img,.gallery img{width:100%;height:auto;border-radius:22px;border:1px solid var(--line);box-shadow:0 8px 24px rgba(0,0,0,.08);display:block}
.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:14px 0}.gallery figure{margin:0}.gallery figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:6px}
.tip{background:color-mix(in srgb,var(--accent) 8%,transparent);border-radius:14px;padding:12px 16px;font-size:15px;margin:12px 0}
ol.how{padding-left:20px}ol.how li{margin:4px 0}
@media (max-width:640px){.step,.step:nth-of-type(even){grid-template-columns:1fr}.step:nth-of-type(even) .shots{order:0}.shots{max-width:240px;margin:0 auto}.gallery{grid-template-columns:repeat(3,1fr)}}
.zoomable{cursor:zoom-in}
.lightbox{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:16px 16px 44px;background:rgba(0,0,0,.82);cursor:zoom-out;opacity:0;transition:opacity .2s}
.lightbox.open{opacity:1}.lightbox img{max-width:100%;max-height:100%;width:auto;height:auto;border-radius:28px;box-shadow:0 12px 40px rgba(0,0,0,.5)}
.lightbox p{position:absolute;bottom:12px;left:0;right:0;margin:0;text-align:center;color:#ddd;font-size:14px}
.posts{list-style:none;padding:0;margin:20px 0}.posts li{padding:18px 0;border-top:1px solid var(--line)}.posts a.t{font-size:19px;font-weight:700;text-decoration:none;color:var(--fg)}.posts a.t:hover{color:var(--accent)}.posts p{margin:6px 0 0}
article h1{margin-bottom:6px}article p,article li{font-size:17.5px;line-height:1.7}article blockquote{margin:20px 0;padding:4px 0 4px 16px;border-left:3px solid var(--accent);color:var(--muted);font-style:italic}
.byline{color:var(--muted);font-size:14px;margin-bottom:22px}.next{margin-top:34px;padding:16px;border-radius:14px;background:color-mix(in srgb,var(--accent) 8%,transparent);font-size:15px}
header .brand{display:flex;align-items:center;gap:12px}header .topnav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
header .topnav a{font-size:15px;font-weight:600;padding:6px 12px;border-radius:99px;color:var(--fg)}header .topnav a:hover{background:color-mix(in srgb,var(--accent) 12%,transparent)}
header .topnav a.on{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.fromblog{margin:34px 0 8px;padding:20px;border:1px solid var(--line);border-radius:18px}.fromblog h2{margin-top:0}.fromblog ul{list-style:none;padding:0;margin:10px 0}.fromblog li{padding:10px 0;border-top:1px solid var(--line)}.fromblog li:first-child{border-top:0}.fromblog a.t{font-weight:700;text-decoration:none;color:var(--fg)}.fromblog a.t:hover{color:var(--accent)}.fromblog p{margin:4px 0 0;font-size:15px;color:var(--muted)}
@media (max-width:560px){header{flex-wrap:wrap}header .topnav{margin-left:0;width:100%}header .topnav a{padding:5px 10px;font-size:14px}}