*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --display: 'Syne', sans-serif;
  --body: 'Zen Kaku Gothic New', sans-serif;
  --mono: 'Space Mono', monospace;
  --ink: #1c1c1c;
  --text: #333;
  --sub: #666;
  --faint: #999;
  --rule: #ddd;
  --bg: #f8f7f5;
  --white: #fff;
  --ghost: #eae9e6;
  --red: #c83232;
  --max-w: 1080px;
  --content-w: 720px;
}
body { font-family: var(--body); background: var(--bg); color: var(--text); font-size: 15.5px; line-height: 1.82; -webkit-font-smoothing: antialiased; }
::selection { background: var(--ink); color: var(--bg); }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--red); }
strong { color: var(--ink); font-weight: 700; }

/* ===== HEADER ===== */
.hd { position: sticky; top: 0; z-index: 100; background: var(--bg); border-bottom: 1px solid var(--ink); }
.hd-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; height: 52px; display: flex; justify-content: space-between; align-items: center; }
.hd-logo { font-family: var(--display); font-weight: 800; font-size: 1.05rem; letter-spacing: -.03em; color: var(--ink); }
.hd-right { display: flex; align-items: center; gap: 20px; }
.hd-search { display: flex; align-items: center; gap: 6px; padding: 6px 14px; border: 1px solid var(--rule); border-radius: 6px; font-family: var(--mono); font-size: .7rem; color: var(--faint); cursor: pointer; transition: border-color .15s; }
.hd-search:hover { border-color: var(--ink); color: var(--sub); }
.hd-search kbd { font-family: var(--mono); font-size: .6rem; padding: 1px 5px; border: 1px solid var(--rule); border-radius: 3px; color: var(--faint); background: var(--white); }
.hd-menu-btn { display: flex; flex-direction: column; gap: 4px; cursor: pointer; padding: 4px; }
.hd-menu-btn span { display: block; width: 18px; height: 1.5px; background: var(--ink); }

/* ===== MENU OVERLAY ===== */
.menu-overlay { display: none; position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.4); }
.menu-overlay.open { display: block; }
.menu-panel { position: fixed; top: 0; right: 0; width: 360px; max-width: 90vw; height: 100vh; background: var(--bg); border-left: 1px solid var(--ink); padding: 24px; overflow-y: auto; z-index: 201; transform: translateX(100%); transition: transform .25s ease; }
.menu-overlay.open .menu-panel { transform: translateX(0); }
.menu-close { font-family: var(--mono); font-size: .8rem; cursor: pointer; border: none; background: none; color: var(--sub); margin-bottom: 24px; }
.menu-section { margin-bottom: 28px; }
.menu-section-title { font-family: var(--mono); font-size: .62rem; color: var(--faint); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.menu-links { list-style: none; padding: 0; }
.menu-links a { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--ghost); font-size: .88rem; color: var(--text); transition: color .15s; }
.menu-links a:hover { color: var(--red); }
.menu-links .count { font-family: var(--mono); font-size: .68rem; color: var(--faint); }

/* ===== BREADCRUMB ===== */
.breadcrumb { max-width: var(--max-w); margin: 0 auto; padding: 12px 24px; font-family: var(--mono); font-size: .68rem; color: var(--faint); display: flex; gap: 6px; flex-wrap: wrap; }
.breadcrumb a { color: var(--sub); }
.breadcrumb a:hover { color: var(--ink); }

/* ===== SECTION LABEL ===== */
.sec-label { font-family: var(--mono); font-size: .62rem; color: var(--faint); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
.sec-label::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

/* ===== ARTICLE LIST ===== */
.article-list { border-top: 1px solid var(--ink); }
.article-row { display: grid; grid-template-columns: 100px 1fr auto; gap: 16px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.article-row:hover { background: var(--white); margin: 0 -8px; padding-left: 8px; padding-right: 8px; }
.article-row-cat { font-family: var(--mono); font-size: .65rem; color: var(--faint); }
.article-row-title { font-size: .9rem; font-weight: 500; color: var(--ink); }
.article-row-title a { color: inherit; }
.article-row-title a:hover { color: var(--red); }
.article-row-date { font-family: var(--mono); font-size: .65rem; color: var(--faint); }

/* ===== GUIDE GRID ===== */
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.guide-card { background: var(--bg); padding: 20px 24px; transition: background .15s; }
.guide-card:hover { background: var(--white); }
.guide-card-title { font-size: .88rem; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.guide-card-title a { color: inherit; }
.guide-card-title a:hover { color: var(--red); }
.guide-card-meta { font-family: var(--mono); font-size: .62rem; color: var(--faint); }

/* ===== FOOTER ===== */
.ft { border-top: 1px solid var(--ink); max-width: var(--max-w); margin: 0 auto; padding: 32px 24px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 32px; font-size: .78rem; color: var(--sub); }
.ft-title { font-family: var(--mono); font-size: .62rem; color: var(--faint); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 10px; }
.ft-links { list-style: none; padding: 0; }
.ft-links li { margin-bottom: 4px; }
.ft-links a { color: var(--sub); }
.ft-links a:hover { color: var(--ink); }
.ft-copy { grid-column: 1 / -1; text-align: center; font-family: var(--mono); font-size: .65rem; color: var(--faint); padding-top: 20px; border-top: 1px solid var(--rule); }

/* ===== ARTICLE PAGE ===== */
.art-hero { max-width: var(--content-w); margin: 0 auto; padding: 32px 24px 0; }
.art-hero-tag { font-family: var(--mono); font-size: .68rem; color: var(--sub); margin-bottom: 24px; display: flex; align-items: center; gap: 12px; }
.art-hero-tag::before { content: ''; width: 32px; height: 1px; background: var(--rule); }
.art-hero h1 { font-family: var(--body); font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 700; line-height: 1.35; letter-spacing: -.01em; color: var(--ink); margin-bottom: 16px; }
.art-hero-lead { font-size: .92rem; color: var(--sub); line-height: 1.85; margin-bottom: 16px; }
.art-hero-meta { font-family: var(--mono); font-size: .68rem; color: var(--faint); padding-bottom: 20px; border-bottom: 1px solid var(--rule); }
.art-body { max-width: var(--content-w); margin: 0 auto; padding: 8px 24px 80px; }
.art-body h2 { font-family: var(--body); font-size: 1.3rem; font-weight: 700; color: var(--ink); letter-spacing: -.01em; margin: 48px 0 16px; padding: 14px 20px; background: var(--white); border-left: 3px solid var(--ink); }
.art-body h3 { font-family: var(--body); font-size: 1rem; font-weight: 700; color: var(--ink); margin: 32px 0 12px; }
.art-body p { margin-bottom: 18px; }
.art-body ul, .art-body ol { margin: 0 0 18px 22px; }
.art-body li { margin-bottom: 6px; }
.art-body blockquote { border: 1px solid var(--ink); padding: 20px 24px; margin: 24px 0; background: var(--white); font-size: .9rem; }
.art-body table { width: 100%; border-collapse: collapse; font-size: .82rem; margin: 16px 0 24px; }
.art-body th { font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; color: var(--sub); text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--ink); font-weight: 400; white-space: nowrap; }
.art-body td { padding: 10px 14px; border-bottom: 1px solid var(--rule); }
.art-body td:first-child { font-weight: 600; color: var(--ink); }

/* ===== PRODUCT CARD ===== */
.pick { border: 1px solid var(--rule); margin: 24px 0; background: var(--white); }
.pick:hover { border-color: var(--ink); }
.pick.best { border: 2px solid var(--ink); }
.pick-top { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--rule); }
.pick-rank { font-family: var(--mono); font-size: .7rem; color: var(--sub); }
.pick.best .pick-rank { color: var(--red); font-weight: 700; }
.pick-badge { font-family: var(--mono); font-size: .6rem; font-weight: 700; background: var(--ink); color: var(--bg); padding: 3px 10px; letter-spacing: .06em; }
.pick-body { padding: 20px; }
.pick-img { text-align: center; margin-bottom: 16px; }
.pick-img img { max-height: 160px; width: auto; object-fit: contain; }
.pick-name { font-family: var(--body); font-size: 1.1rem; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.pick-sub { font-size: .85rem; color: var(--sub); margin-bottom: 16px; }
.pick-mid { display: grid; grid-template-columns: 140px 1fr; gap: 20px; margin-bottom: 16px; }
.pick-price { font-family: var(--mono); font-size: 1.5rem; font-weight: 700; color: var(--ink); letter-spacing: -.03em; }
.pick-price-note { font-size: .7rem; color: var(--sub); font-weight: 400; display: block; margin-top: 2px; }
.pick-specs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.pick-specs li { padding: 5px 0; border-bottom: 1px solid var(--rule); font-size: .8rem; display: flex; justify-content: space-between; margin: 0; }
.pick-specs .k { color: var(--sub); }
.pick-specs .v { font-weight: 500; color: var(--ink); }
.pick-why { font-size: .88rem; line-height: 1.8; margin-bottom: 16px; padding: 14px; background: var(--bg); border-left: 3px solid var(--rule); }
.pick.best .pick-why { border-left-color: var(--red); }
/* Multi-retailer CTA */
.pick-ctas { display: flex; gap: 8px; flex-wrap: wrap; }
.pick-cta { font-family: var(--mono); font-size: .72rem; font-weight: 700; display: inline-flex; align-items: center; gap: 4px; padding: 10px 20px; border: 1px solid var(--ink); color: var(--ink); transition: all .2s; }
.pick-cta:hover { background: var(--ink); color: var(--bg); }
.pick-cta.cta-amazon { background: var(--ink); color: var(--bg); }
.pick-cta.cta-amazon:hover { background: var(--red); border-color: var(--red); }
.pick-cta.cta-rakuten { border-color: var(--sub); color: var(--sub); }
.pick-cta.cta-rakuten:hover { background: var(--sub); color: var(--bg); border-color: var(--sub); }
.pick-cta.cta-yahoo { border-color: var(--rule); color: var(--sub); }
.pick-cta.cta-yahoo:hover { background: var(--sub); color: var(--bg); border-color: var(--sub); }
.pick.best .pick-cta.cta-amazon { background: var(--ink); color: var(--bg); }
.pick.best .pick-cta.cta-amazon:hover { background: var(--red); border-color: var(--red); }

/* Summary box at article end */
.summary-box { border: 2px solid var(--ink); margin: 40px 0; }
.summary-box-title { font-family: var(--body); font-weight: 700; font-size: .9rem; padding: 14px 20px; background: var(--ink); color: var(--bg); }
.summary-item { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--rule); gap: 16px; }
.summary-item:last-child { border-bottom: none; }
.summary-item-left {}
.summary-item-name { font-weight: 700; font-size: .88rem; color: var(--ink); }
.summary-item-note { font-size: .75rem; color: var(--sub); }
.summary-item-price { font-family: var(--mono); font-weight: 700; font-size: .88rem; color: var(--ink); white-space: nowrap; }
.summary-item-links { display: flex; gap: 6px; }
.summary-link { font-family: var(--mono); font-size: .6rem; font-weight: 700; padding: 5px 10px; border: 1px solid var(--ink); color: var(--ink); transition: all .15s; }
.summary-link:hover { background: var(--ink); color: var(--bg); }

/* Inline CTA after sections */
.section-cta { text-align: center; margin: 32px 0; padding: 20px; background: var(--white); border: 1px solid var(--rule); font-size: .85rem; color: var(--sub); }
.section-cta a { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.section-cta a:hover { color: var(--red); }

/* Related articles */
.related { margin: 48px 0 0; padding: 32px 0 0; border-top: 1px solid var(--ink); }
.related-title { font-family: var(--body); font-weight: 700; font-size: .9rem; color: var(--ink); margin-bottom: 16px; }
.related-list { list-style: none; padding: 0; }
.related-list li { margin-bottom: 8px; }
.related-list a { font-size: .85rem; color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.related-list a:hover { color: var(--red); }

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .hd-search { display: none; }
  .guide-grid { grid-template-columns: 1fr; }
  .article-row { grid-template-columns: 80px 1fr; }
  .article-row-date { display: none; }
  .ft { grid-template-columns: 1fr; gap: 20px; }
  .pick-mid { grid-template-columns: 1fr; }
  .pick-specs { grid-template-columns: 1fr; }
}
/* ===== HOME ===== */
.home-hero { max-width: var(--max-w); margin: 0 auto; padding: 64px 24px 20px; }
.home-hero h1 { font-family: var(--body); font-size: clamp(1.8rem, 4.5vw, 2.8rem); font-weight: 700; line-height: 1.3; letter-spacing: -.02em; color: var(--ink); margin-bottom: 16px; }
.home-hero-lead { font-size: .92rem; color: var(--sub); max-width: 480px; line-height: 1.8; margin-bottom: 28px; }
.home-search { display: flex; border: 1px solid var(--ink); max-width: 480px; margin-bottom: 8px; }
.home-search input { flex: 1; border: none; outline: none; padding: 12px 16px; font-family: var(--body); font-size: .88rem; background: var(--white); color: var(--ink); }
.home-search input::placeholder { color: var(--faint); }
.home-search button { padding: 12px 20px; border: none; border-left: 1px solid var(--ink); background: var(--ink); color: var(--bg); font-family: var(--mono); font-size: .72rem; font-weight: 700; cursor: pointer; }
.home-featured, .home-all, .home-new { max-width: var(--max-w); margin: 0 auto; padding: 48px 24px 0; }
.home-new { padding-bottom: 80px; }
.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--ink); border: 1px solid var(--ink); }
.featured-card { background: var(--bg); padding: 28px 24px; transition: background .15s; display: flex; flex-direction: column; justify-content: space-between; min-height: 150px; }
.featured-card:hover { background: var(--white); color: var(--ink); }
.featured-card-meta { font-family: var(--mono); font-size: .6rem; color: var(--faint); margin-bottom: 10px; }
.featured-card-name { font-family: var(--body); font-size: 1.15rem; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.featured-card-desc { font-size: .8rem; color: var(--sub); line-height: 1.6; }
.featured-card-arrow { font-family: var(--mono); font-size: .75rem; color: var(--faint); align-self: flex-end; margin-top: 12px; transition: color .15s; }
.featured-card:hover .featured-card-arrow { color: var(--red); }
.group { margin-bottom: 32px; }
.group-name { font-family: var(--body); font-size: .88rem; font-weight: 700; color: var(--ink); margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--ink); }
.group-list { display: flex; flex-wrap: wrap; gap: 0 32px; }
.group-item { display: inline-flex; align-items: center; gap: 6px; padding: 9px 0; border-bottom: 1px solid var(--ghost); font-size: .85rem; color: var(--text); transition: color .15s; width: calc(25% - 24px); }
.group-item:hover { color: var(--red); }
.group-item-count { font-family: var(--mono); font-size: .58rem; color: var(--faint); background: var(--ghost); padding: 1px 6px; border-radius: 3px; }
/* ===== CATEGORY PAGE ===== */
.cat-hero { max-width: var(--max-w); margin: 0 auto; padding: 48px 24px 40px; }
.cat-hero-tag { font-family: var(--mono); font-size: .68rem; color: var(--sub); margin-bottom: 16px; }
.cat-hero h1 { font-family: var(--body); font-size: 2rem; font-weight: 700; letter-spacing: -.01em; color: var(--ink); margin-bottom: 12px; }
.cat-hero-desc { font-size: .92rem; color: var(--sub); max-width: 560px; line-height: 1.8; }
.cat-sections { max-width: var(--max-w); margin: 0 auto; padding: 0 24px 80px; }
.tbl-wrap { overflow-x: auto; margin: 16px 0 24px; border: 1px solid var(--ink); }
@media (max-width: 900px) { .group-item { width: calc(50% - 16px); } }
@media (max-width: 500px) { .group-item { width: 100%; } .featured-grid { grid-template-columns: 1fr; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }