:root { --ink: #222139; --muted: #6f697c; --purple: #756bdd; --line: #dedee7; --bg: #f7f7f9; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Arial, Helvetica, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--purple); outline-offset: 5px; }
header { width: calc(100% - 56px); max-width: 1130px; height: 70px; margin: 25px auto 0; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; border: 1px solid #fff; border-radius: 18px; background: #ffffffd9; box-shadow: 0 10px 32px #2321421f; }
.brand { display: flex; align-items: center; gap: 9px; font-size: 25px; font-weight: 700; letter-spacing: -1px; transition: color .15s; }
.brand span { margin-left: -10px; color: var(--purple); }
.brand:hover { color: var(--purple); }
.home-link { padding: 11px 16px; border: 1px solid var(--purple); border-radius: 10px; background: var(--purple); color: #fff; font-size: 14px; box-shadow: 0 3px 6px #26213c17; transition: background .15s, transform .15s; }
.home-link:hover { background: #655bd0; transform: translateY(-2px); }
main { padding: 70px 28px 100px; }
article { max-width: 850px; margin: 0 auto; padding: clamp(34px, 6vw, 72px); border: 1px solid #fff; border-radius: 24px; background: #faf9fc; box-shadow: 0 12px 38px #2925410c; }
h1 { margin: 0 0 28px; font: 400 clamp(44px, 7vw, 72px)/1.02 Georgia, "Times New Roman", serif; letter-spacing: -2.5px; }
.intro { margin: 0 0 42px; padding-bottom: 28px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 18px; line-height: 1.65; }
section { margin-top: 36px; }
h2 { position: relative; margin: 0 0 14px; padding-left: 44px; font: italic 400 clamp(22px, 3vw, 28px)/1.2 Georgia, "Times New Roman", serif; }
h2 span { position: absolute; left: 0; color: var(--purple); }
section p { margin: 0 0 12px; padding-left: 44px; font-size: 16px; line-height: 1.65; }
section a { color: var(--purple); }
.date { margin: 42px 0 0; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer { max-width: 1130px; margin: 0 auto; padding: 35px 0; display: flex; justify-content: space-between; align-items: center; gap: 24px; color: #71717f; font-size: 13px; }
footer .brand { color: var(--ink); }
footer .brand:hover, footer .brand:hover span { color: var(--purple); }
@supports (corner-shape: squircle) { header, .home-link, article { corner-shape: squircle; } }
@media (max-width: 750px) {
  header { width: calc(100% - 28px); height: 62px; margin-top: 16px; padding: 0 12px; border-radius: 14px; }
  .brand { font-size: 22px; }
  .home-link { padding: 10px 12px; font-size: 12px; }
  main { padding: 40px 14px 65px; }
  article { padding: 30px 22px; border-radius: 18px; }
  h1 { font-size: 43px; letter-spacing: -1.7px; }
  .intro { font-size: 16px; }
  h2, section p { padding-left: 30px; }
  section p { font-size: 15px; }
  footer { margin: 0 22px; flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }