*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --primary: #1a6b4a; --primary-dark: #145539; --primary-light: #22865e;
      --primary-pale: #e8f5ef; --primary-mid: #c5e6d4;
      --bg: #f8faf9; --bg3: #ffffff;
      --text: #111a15; --muted: #4a5a50; --faint: #8a9a90;
      --border: #d4ddd8; --radius: 10px;
      --font: 'Inter', system-ui, sans-serif;
    }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
    a { color: var(--primary); text-decoration: none; }
    a:hover { text-decoration: underline; }
    .container { max-width: 820px; margin: 0 auto; padding: 0 1.5rem; }

    nav { position: sticky; top: 0; z-index: 100; background: rgba(248,250,249,0.95); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
    .nav-inner { max-width: 820px; margin: 0 auto; padding: 0 1.5rem; height: 60px; display: flex; align-items: center; justify-content: space-between; }
    .nav-links { display: flex; align-items: center; gap: 1.5rem; list-style: none; }
    .nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--muted); }
    .nav-links a:hover { color: var(--primary); text-decoration: none; }

    .page-header { padding: 3rem 0 1.5rem; }
    .page-header h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 0.5rem; }
    .page-header p { font-size: 1rem; color: var(--muted); max-width: 620px; }

    .log { padding-bottom: 3.5rem; }
    .log-entry { display: grid; grid-template-columns: 140px 1fr; gap: 1.5rem; padding: 2rem 0; border-top: 1px solid var(--border); }
    .log-date { font-size: 0.85rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.04em; padding-top: 0.2rem; }
    .log-body h2 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.85rem; }
    .log-body ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
    .log-body li { position: relative; padding-left: 1.4rem; font-size: 0.95rem; color: var(--muted); line-height: 1.6; }
    .log-body li::before { content: ""; position: absolute; left: 0; top: 0.55rem; width: 7px; height: 7px; border-radius: 50%; background: var(--primary-mid); }
    .log-body li strong { color: var(--text); font-weight: 600; }
    .log-body a { color: var(--primary); }

    @media (max-width: 640px) {
      .nav-links { display: none; }
      .log-entry { grid-template-columns: 1fr; gap: 0.5rem; padding: 1.5rem 0; }
      .log-date { padding-top: 0; }
    }