:root { --accent: #e8483a; --dark: #1a1a1a; --gray: #5f5f5f; --line: #e3e3e3; --bg: #fafafa; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--dark); background: var(--bg); line-height: 1.65; font-size: 16px; }
header { background: #000; padding: 14px 20px; }
header .inner { max-width: 820px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.logo img { height: 84px; width: auto; }
.logo .wm { display: inline-flex; align-items: stretch; border: 2px solid #fff; border-radius: 4px; overflow: hidden; font-size: 17px; letter-spacing: .06em; }
.logo .wm b { font-weight: 700; padding: 5px 10px; line-height: 1.2; }
.logo .wm .w1 { color: #fff; background: #000; }
.logo .wm .w2 { color: #000; background: #fff; }
@media (max-width: 560px) { .logo .wm { display: none; } .logo img { height: 52px; } }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 700; text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--accent); }
nav a { color: #fff; opacity: .85; text-decoration: none; font-weight: 600; font-size: 15px; margin-left: 18px; }
nav a:hover { opacity: 1; }
main { max-width: 820px; margin: 0 auto; padding: 48px 20px 64px; }
h1 { font-size: clamp(28px, 5vw, 38px); letter-spacing: -.02em; margin-bottom: 6px; }
.meta { color: var(--gray); font-size: 14px; margin-bottom: 24px; }
h2 { font-size: 21px; margin: 40px 0 10px; padding-top: 8px; scroll-margin-top: 16px; }
h3 { font-size: 16.5px; margin: 20px 0 6px; }
p { margin: 0 0 12px; }
ul { margin: 0 0 14px 22px; }
li { margin-bottom: 5px; }
a { color: var(--accent); }
.box { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 8px; padding: 16px 18px; margin: 14px 0 18px; }
.toc { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 4px 20px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; margin: 18px 0 8px; }
.toc a { margin: 0; color: var(--dark); font-weight: 500; font-size: 15px; opacity: 1; text-decoration: none; }
.toc a:hover { color: var(--accent); }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 8px; margin: 10px 0 16px; font-size: 15px; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { background: #f3f3f3; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--gray); }
tr:last-child td { border-bottom: 0; }
footer { text-align: center; padding: 26px 20px; color: var(--gray); font-size: 14px; border-top: 1px solid var(--line); }
footer a { color: var(--gray); }
@media (max-width: 560px) { nav a { margin-left: 12px; } main { padding-top: 32px; } }