:root {
            --bg: #f3f3f1;
            --surface: #ffffff;
            --text: #24415a;
            --muted: #5f6f7f;
            --line: #d8d8d3;
            --brand: #2f4b5c;
            --accent: #e10600;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
            --radius: 14px;
            --content-width: 860px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: Helvetica;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
        }

        a {
            color: inherit;
        }

        .topbar {
            box-shadow:0 2px 6px rgba(156, 156, 156, 0.39);
            position: sticky;
  top: 0;
  z-index: 10;
  background-color: #fff;
        }

        .topbar-inner {
            max-width: 1120px;
            margin: 0 auto;
            padding: 16px 18px;
            font-family: Arial, Helvetica, sans-serif;
        }

        .topbar a {
            color: var(--text);
            text-decoration: none;
            font-size: 1.15rem;
            letter-spacing: 0.01em;
            font-weight:bold;
        }

        .page {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 56px 24px 64px;
        }

        .hero-title {
            margin: 0 0 22px;
            font-size: 2rem;
            font-weight: 400;
            line-height: 1.12;
        }

        .hero {
            display: grid;
            grid-template-columns: 200px minmax(0, 1fr);
            gap: 30px;
            align-items: start;
        }

        .date-card {
            width: 200px;
            border: 4px solid var(--accent);
            border-radius: 6px;
            overflow: hidden;
            background: var(--surface);
            box-shadow: var(--shadow);
            font-family: Arial, Helvetica, sans-serif;
        }

        .date-card-month {
            background: var(--accent);
            color: #fff;
            text-align: center;
            font-size: 1.9rem;
            padding: 10px 12px;
            line-height: 1;
        }

        .date-card-body {
            text-align: center;
            padding: 14px 12px 18px;
        }

        .date-card-day {
            font-size: 5rem;
            line-height: 1;
            color: var(--brand);
            font-weight: 400;
            margin: 4px 0 8px;
        }

        .date-card-weekday {
            font-size: 1.05rem;
            color: var(--muted);
        }

        .hero-copy h1 {
            margin: 0 0 10px;
            font-size: 1.5rem;
            font-weight: 400;
            line-height: 1.18;
        }

        .hero-copy p {
            margin: 0 0 12px;
            font-size: 1.02rem;
        }

        .hero-meta {
            display: inline-block;
            margin-top: 4px;
            padding: 6px 10px;
            border-radius: 999px;
            background: rgba(47, 75, 92, 0.08);
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.92rem;
            color: var(--brand);
        }

        .section-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 24px 0 24px;
            font-family: Arial, Helvetica, sans-serif;
        }

        .section-nav a {
            text-decoration: none;
            color: var(--muted);
            border: 1px solid #d7d8d2;
            background: rgba(255,255,255,0.65);
            border-radius: 999px;
            padding: 8px 12px;
            font-size: 0.95rem;
        }

        .section-nav a:hover {
            color: var(--brand);
            background: #fff;
        }

        .divider {
            height: 3px;
            background: var(--line);
            margin: 26px 0 34px;
        }

        .article {
            max-width: 760px;
        }

        .content-block {
            margin: 0 0 40px;
        }

        .section-kicker {
            display: inline-block;
            margin-bottom: 8px;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.75rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--muted);
            font-weight: 700;
        }

        h2 {
            margin: 0 0 14px;
            font-size: 2rem;
            font-weight: 400;
            line-height: 1.2;
        }

        h3 {
            margin: 22px 0 8px;
            font-size: 1.22rem;
            font-weight: 700;
            line-height: 1.35;
        }

        p {
            margin: 0 0 16px;
            font-size: 1.04rem;
        }

        .history-block {
            position: relative;
            padding-left: 28px;
        }

        .history-block::before {
            content: "";
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: linear-gradient(180deg, #d2d9df, #e6e9ec);
        }

        .year-badge {
            display: inline-block;
            vertical-align: baseline;
            margin-right: 8px;
            padding: 3px 9px;
            border-radius: 999px;
            background: white;
            border: 1px solid #d5dce2;
            color: var(--brand);
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.88rem;
            font-weight: 700;
        }

        .qa-block {
            background: rgba(255,255,255,0.55);
            border: 1px solid #dfe2e4;
            border-radius: var(--radius);
            padding: 22px;
        }

        .qa-block p:last-child {
            margin-bottom: 0;
        }

        .aside-note {
            margin-top: 18px;
            padding: 14px 16px;
            border-left: 3px solid var(--accent);
            background: rgba(225, 6, 0, 0.04);
            font-size: 0.98rem;
        }

        .info-note {
            margin: 24px 0 0;
            padding: 14px 16px;
            border-radius: 10px;
            background: rgba(47, 75, 92, 0.06);
            border: 1px solid #dce2e7;
            font-size: 0.98rem;
        }

        .meta-note {
            margin-top: 18px;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.92rem;
            color: var(--muted);
        }

        .meta-note > div:first-child {
            margin-bottom: 10px;
        }

        .meta-note ul {
            margin: 8px 0 0;
            padding-left: 18px;
        }

        .meta-note li {
            margin: 3px 0;
        }

        .footer {
            margin-top: 36px;
            padding-top: 14px;
            border-top: 1px solid var(--line);
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.92rem;
            color: var(--muted);
        }

        .footer a {
            text-decoration: none;
        }

        .footer a:hover {
            text-decoration: underline;
        }

        @media (max-width: 760px) {
            .page {
                padding: 34px 16px 44px;
            }

            .hero-title {
                font-size: 2.3rem;
                margin-bottom: 18px;
            }

            .hero {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .date-card {
                margin: 0 auto;
            }

            .hero-copy h1 {
                font-size: 1.9rem;
            }

            h2 {
                font-size: 1.7rem;
            }

            .history-block {
                padding-left: 20px;
            }

            .history-block::before {
                left: 6px;
            }

            .qa-block {
                padding: 18px;
            }
        }
    .brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: black;
}

.brand img {
  display: block;
}

[id] {
  scroll-margin-top: 100px;
}