:root{--font-heading: "Noto Serif JP", serif;--font-body: "Noto Sans JP", sans-serif;--color-bg: #faf6ee;--color-surface: #ffffff;--color-text: #1a1a1a;--color-text-muted: #5a5a5a;--color-primary: #1a2a4a;--color-accent: #c9a24b;--color-border: #e6dcc4;--radius: 4px;--nav-justify: center;--nav-transform: none;--nav-letter-spacing: normal;--header-position: static;--article-list-display: grid;--article-list-direction: row;--article-list-columns: repeat(3, 1fr);--article-list-gap: 2rem;--card-border: 1px solid var(--color-border);--card-shadow: 0 1px 3px rgba(0, 0, 0, .06);--card-direction: column}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);line-height:1.7}h1,h2,h3{font-family:var(--font-heading);color:var(--color-primary);line-height:1.4}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-accent)}.container{max-width:1080px;margin:0 auto;padding:0 1.5rem}.site-header{position:var(--header-position);top:0;z-index:10;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem}.site-header__logo{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;color:var(--color-primary)}.site-nav{display:flex;justify-content:var(--nav-justify);gap:1.5rem;text-transform:var(--nav-transform);letter-spacing:var(--nav-letter-spacing)}.site-nav a{color:var(--color-text);font-weight:600}.site-footer{border-top:1px solid var(--color-border);padding:2rem 1.5rem;margin-top:4rem;color:var(--color-text-muted);font-size:.9rem}.hero{padding:3rem 1.5rem;text-align:center}.hero h1{font-size:2rem;margin-bottom:.75rem}.hero p{color:var(--color-text-muted);max-width:640px;margin:0 auto}.article-list{display:var(--article-list-display);flex-direction:var(--article-list-direction);grid-template-columns:var(--article-list-columns);gap:var(--article-list-gap);padding:2rem 1.5rem}.article-card{display:flex;flex-direction:var(--card-direction);gap:1rem;background:var(--color-surface);border:var(--card-border);border-radius:var(--radius);box-shadow:var(--card-shadow);overflow:hidden}.article-card__image{width:100%;aspect-ratio:16 / 9;object-fit:cover;background:var(--color-border)}.article-card__body{padding:1rem}.article-card__title{font-size:1.05rem;margin:0 0 .5rem}.article-card__excerpt{color:var(--color-text-muted);font-size:.9rem}.article-detail{padding:2rem 1.5rem;max-width:720px;margin:0 auto}.article-detail h1{font-size:1.8rem}.article-meta{color:var(--color-text-muted);font-size:.85rem;margin-bottom:1.5rem}.static-page{padding:2rem 1.5rem;max-width:720px;margin:0 auto}[data-theme=a]{--font-heading: "Noto Serif JP", serif;--font-body: "Noto Sans JP", sans-serif;--color-bg: #faf6ee;--color-surface: #ffffff;--color-text: #1a1a1a;--color-text-muted: #5a5a5a;--color-primary: #1a2a4a;--color-accent: #c9a24b;--color-border: #e6dcc4;--radius: 4px;--nav-justify: center;--nav-transform: none;--nav-letter-spacing: normal;--header-position: static;--article-list-display: grid;--article-list-direction: row;--article-list-columns: repeat(3, 1fr);--article-list-gap: 2rem;--card-border: 1px solid var(--color-border);--card-shadow: 0 1px 3px rgba(0, 0, 0, .06);--card-direction: column}[data-theme=b]{--font-heading: "Zen Kaku Gothic New", sans-serif;--font-body: "Noto Sans JP", sans-serif;--color-bg: #f4f3ee;--color-surface: #ffffff;--color-text: #1c231f;--color-text-muted: #5c6660;--color-primary: #1f3d2e;--color-accent: #e8674a;--color-border: #d9dcd3;--radius: 2px;--nav-justify: flex-start;--nav-transform: uppercase;--nav-letter-spacing: .06em;--header-position: sticky;--article-list-display: flex;--article-list-direction: column;--article-list-columns: none;--article-list-gap: 1.25rem;--card-border: 1px solid var(--color-border);--card-shadow: none;--card-direction: row}[data-theme=b] .article-card__image{width:220px;flex:0 0 220px;aspect-ratio:4 / 3}[data-theme=c]{--font-heading: "Noto Sans JP", sans-serif;--font-body: "Noto Sans JP", sans-serif;--color-bg: #ffffff;--color-surface: #ffffff;--color-text: #2b2b2b;--color-text-muted: #767676;--color-primary: #2b2b2b;--color-accent: #ff7a30;--color-border: #ececec;--radius: 0px;--nav-justify: center;--nav-transform: none;--nav-letter-spacing: .02em;--header-position: static;--article-list-display: grid;--article-list-direction: row;--article-list-columns: repeat(2, 1fr);--article-list-gap: 3rem;--card-border: none;--card-shadow: none;--card-direction: column}[data-theme=c] .site-header{border-bottom:none}[data-theme=c] .article-card{border-bottom:1px solid var(--color-border);border-radius:0;padding-bottom:1.5rem}