*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --olive:      #6b8f71;
      --olive-dark: #4a6b50;
      --olive-tint: #eef4ee;
      --paper:      #fbf8f1;
      --paper-2:    #f4efe2;
      --ink:        #1f1d18;
      --ink-soft:   #4a4641;
      --ink-mute:   #8a857c;
      --line:       #e5dfd0;
      --serif:  "Shippori Mincho", "Hiragino Mincho ProN", serif;
      --sans:   "Zen Kaku Gothic New", "Hiragino Sans", system-ui, sans-serif;
      --italic: "Cormorant Garamond", serif;
      --mono:   "JetBrains Mono", ui-monospace, monospace;
    }
    html { font-size: 16px; scroll-behavior: smooth; overflow-x: hidden; }
    body { font-family: var(--sans); color: var(--ink); background: var(--paper); line-height: 1.95; overflow-x: hidden; }
    a { color: var(--olive-dark); text-decoration: underline; text-underline-offset: 3px; }
    a:hover { opacity: .75; }

    .header { position: fixed; top: 0; left: 0; right: 0; z-index: 200; background: rgba(251,248,241,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
    .header-inner { max-width: 1080px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }
    .logo { font-family: var(--italic); font-style: italic; font-weight: 500; font-size: 1.3rem; line-height: 1.1; }
    .logo small { display: block; font-family: var(--mono); font-style: normal; font-size: .56rem; letter-spacing: .2em; color: var(--ink-mute); margin-top: 3px; }
    .back-link { font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; color: var(--ink-soft); display: flex; align-items: center; gap: 6px; padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; transition: background .2s; }
    .back-link:hover { background: var(--olive-tint); }

    main { max-width: 760px; margin: 0 auto; padding: 140px 24px 96px; }
    .eyebrow { font-family: var(--mono); font-size: .6rem; letter-spacing: .3em; color: var(--olive); text-transform: uppercase; margin-bottom: 14px; }
    h1 { font-family: var(--serif); font-size: clamp(1.6rem, 3.6vw, 2.1rem); font-weight: 500; line-height: 1.6; letter-spacing: .04em; margin-bottom: 12px; }
    .rule-line { width: 32px; height: 1px; background: var(--olive); margin: 0 0 40px; }

    .intro { font-size: .95rem; color: var(--ink-soft); margin-bottom: 56px; }

    h2 { font-family: var(--serif); font-size: 1.18rem; font-weight: 500; line-height: 1.6; letter-spacing: .04em; margin-top: 44px; margin-bottom: 16px; padding-left: 14px; border-left: 3px solid var(--olive); }
    h2:first-of-type { margin-top: 0; }
    p { font-size: .92rem; color: var(--ink-soft); margin-bottom: 16px; }
    ul { padding-left: 1.4em; margin-bottom: 20px; }
    li { font-size: .92rem; color: var(--ink-soft); margin-bottom: 8px; }

    .meta-box { margin-top: 64px; padding: 24px 28px; background: var(--paper-2); border-radius: 8px; border: 1px solid var(--line); }
    .meta-box dt { font-family: var(--mono); font-size: .6rem; letter-spacing: .18em; color: var(--ink-mute); margin-bottom: 4px; }
    .meta-box dd { font-size: .9rem; color: var(--ink-soft); margin-bottom: 18px; }
    .meta-box dd:last-child { margin-bottom: 0; }

    footer { background: var(--olive-dark); color: var(--paper); padding: 36px 22px 28px; text-align: center; }
    .footer-logo { font-family: var(--italic); font-style: italic; font-size: 1.4rem; margin-bottom: 12px; }
    .footer-logo small { display: block; font-family: var(--mono); font-style: normal; font-size: .56rem; letter-spacing: .2em; opacity: .55; margin-top: 4px; }
    .footer-meta { font-family: var(--mono); font-size: .58rem; letter-spacing: .14em; opacity: .55; margin-top: 14px; }

    @media (max-width: 768px) {
      main { padding: 110px 20px 72px; }
      h1 { font-size: 1.4rem; }
      h2 { font-size: 1.05rem; }
    }