@charset "UTF-8";

:root {
  --ink: #183d36;
  --ink-soft: #66756f;
  --line: #dfe8e1;
  --surface: #fffdf9;
  --surface-muted: #f7f5ef;
  --surface-accent: #e8f2ed;
  --accent: #2d7068;
  --accent-dark: #1f554f;
  --accent-soft: #cfe6dc;
  --cta: #d8755c;
  --cta-dark: #b95e49;
  --warm: #fbefe8;
  --warning: #8c5a2e;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow: 0 14px 38px rgba(32, 57, 49, .08);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--surface-muted);
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface-muted); }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img, svg { max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 231, 226, .9);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; max-width: 1120px; margin: 0 auto; padding: 0 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .08em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: #fff; background: var(--accent); font-size: 13px; letter-spacing: 0; }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy small { margin-top: 3px; color: var(--ink-soft); font-size: 10px; font-weight: 500; letter-spacing: .1em; }
.main-nav { display: none; align-items: center; gap: 25px; color: var(--ink-soft); font-size: 13px; }
.main-nav a:hover { color: var(--accent); }
.header-cta { display: none; }

.container { width: min(100% - 32px, 1120px); margin-inline: auto; }
.narrow { width: min(100% - 32px, 820px); margin-inline: auto; }
.section { padding: 64px 0; }
.section-sm { padding: 40px 0; }
.section-label { margin: 0 0 10px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.section-title { max-width: 680px; margin: 0; font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif; font-size: clamp(27px, 5vw, 43px); line-height: 1.35; letter-spacing: -.04em; }
.section-lead { max-width: 640px; margin: 14px 0 0; color: var(--ink-soft); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.section-heading .section-title { font-size: clamp(23px, 4vw, 32px); }
.text-link { color: var(--accent); font-size: 14px; font-weight: 700; }
.text-link::after { content: "  →"; }

.hero { overflow: hidden; background: #faf7ef; }
.hero-inner { display: grid; gap: 36px; align-items: center; padding: 70px 0 72px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.eyebrow::before { content: ""; display: inline-block; width: 22px; height: 2px; background: var(--accent); }
.hero-title { max-width: 650px; margin: 0; font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif; font-size: clamp(35px, 9vw, 65px); line-height: 1.2; letter-spacing: -.06em; }
.hero-title em { color: var(--accent); font-style: normal; }
.hero-copy { max-width: 580px; margin: 20px 0 0; color: var(--ink-soft); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid var(--cta); border-radius: 999px; background: var(--cta); color: #fff; font-size: 14px; font-weight: 800; transition: .2s ease; }
.button:hover { background: var(--cta-dark); border-color: var(--cta-dark); transform: translateY(-1px); }
.button.secondary { background: transparent; color: var(--accent); }
.button.secondary:hover { background: var(--surface-accent); }
.button.full { width: 100%; }

.hero-art { position: relative; min-height: 300px; border: 1px solid rgba(45, 112, 104, .1); border-radius: var(--radius-lg); background: rgba(232, 242, 237, .82); overflow: hidden; }
.hero-art::before, .hero-art::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(45, 112, 104, .18); }
.hero-art::before { width: 290px; height: 290px; top: -108px; right: -45px; }
.hero-art::after { width: 210px; height: 210px; bottom: -100px; left: -60px; }
.art-label { position: absolute; top: 28px; left: 28px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.art-note { position: absolute; right: 22px; bottom: 24px; color: var(--ink-soft); font-size: 12px; }
.art-stack { position: absolute; top: 76px; left: 14%; width: 68%; }
.art-line { display: flex; align-items: center; gap: 10px; padding: 16px 18px; border: 1px solid rgba(45, 112, 104, .16); border-radius: 12px; background: rgba(255,255,255,.82); box-shadow: 0 8px 22px rgba(45,112,104,.08); }
.art-line + .art-line { margin-top: -1px; margin-left: 22px; }
.art-line:nth-child(3) { margin-left: 44px; }
.art-number { color: var(--accent); font-size: 22px; font-weight: 900; line-height: 1; }
.art-line strong { display: block; font-size: 13px; }
.art-line small { display: block; color: var(--ink-soft); font-size: 11px; }

.category-grid, .feature-grid, .latest-grid, .criteria-grid, .product-grid, .purpose-grid { display: grid; gap: 12px; }
.category-grid { grid-template-columns: repeat(2, 1fr); }
.category-card { display: flex; align-items: center; gap: 12px; min-height: 98px; padding: 17px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.category-icon { display: grid; place-items: center; flex: 0 0 40px; width: 40px; height: 40px; border-radius: 12px; background: var(--surface-accent); color: var(--accent); font-size: 20px; }
.category-card strong { display: block; font-size: 14px; }
.category-card small { display: block; margin-top: 2px; color: var(--ink-soft); font-size: 11px; }

.feature-card { display: grid; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); }
.feature-visual { min-height: 220px; padding: 26px; background: #edf4ef; }
.feature-visual p { margin: 0; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.feature-visual h3 { max-width: 360px; margin: 34px 0 0; font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif; font-size: 30px; line-height: 1.35; letter-spacing: -.05em; }
.feature-body { padding: 26px; }
.feature-body h3 { margin: 0; font-size: 22px; }
.feature-body p { margin: 10px 0 20px; color: var(--ink-soft); }
.tag-row, .meta-row, .pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag, .pill { display: inline-flex; align-items: center; min-height: 27px; padding: 0 10px; border-radius: 999px; background: var(--surface-accent); color: var(--accent-dark); font-size: 11px; font-weight: 700; }
.latest-card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.latest-card h3 { margin: 12px 0 4px; font-size: 19px; }
.latest-card p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.latest-card .meta-row { margin-top: 18px; color: var(--ink-soft); font-size: 12px; }
.latest-card.is-muted { background: transparent; border-style: dashed; }

.split-panel { display: grid; gap: 22px; padding: 28px; border-radius: var(--radius-lg); background: var(--ink); color: #fff; }
.split-panel p { margin: 0; color: rgba(255,255,255,.72); }
.split-panel .section-label { color: var(--accent-soft); }
.split-panel .section-title { font-size: clamp(25px, 5vw, 35px); }
.principles { display: grid; gap: 10px; }
.principle { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.principle:last-child { border-bottom: 0; }
.principle-index { color: var(--accent-soft); font-weight: 800; }
.principle strong { display: block; font-size: 14px; }
.principle span { display: block; margin-top: 2px; color: rgba(255,255,255,.65); font-size: 13px; }
.notice { padding: 18px 20px; border: 1px solid var(--accent-soft); border-radius: var(--radius-md); background: var(--surface-accent); }
.notice strong { display: block; color: var(--accent-dark); font-size: 14px; }
.notice p { margin: 5px 0 0; color: var(--ink-soft); font-size: 13px; }

.site-footer { margin-top: 40px; padding: 46px 0 22px; border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { display: grid; gap: 30px; }
.footer-copy { margin: 14px 0 0; color: var(--ink-soft); font-size: 13px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; color: var(--ink-soft); font-size: 13px; }
.footer-links a:hover { color: var(--accent); }
.copyright { margin: 34px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; }

.page-hero { padding: 60px 0 48px; background: #faf7ef; }
.page-hero .hero-title { font-size: clamp(32px, 7vw, 54px); }
.breadcrumb { display: flex; gap: 8px; margin-bottom: 25px; color: var(--ink-soft); font-size: 12px; }
.breadcrumb a { color: var(--accent); }
.prose { color: var(--ink-soft); }
.prose h2 { margin: 42px 0 12px; color: var(--ink); font-size: 25px; line-height: 1.45; letter-spacing: -.03em; }
.prose h3 { margin: 28px 0 8px; color: var(--ink); font-size: 18px; }
.prose p { margin: 10px 0; }
.prose ul { padding-left: 1.3em; }
.prose li + li { margin-top: 8px; }
.definition-list { margin: 26px 0 0; border-top: 1px solid var(--line); }
.definition-row { display: grid; gap: 4px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.definition-row dt { color: var(--ink); font-weight: 800; }
.definition-row dd { margin: 0; color: var(--ink-soft); }

.pr-banner { display: flex; align-items: center; justify-content: center; gap: 9px; padding: 10px 16px; background: var(--ink); color: rgba(255,255,255,.82); font-size: 12px; text-align: center; }
.pr-badge { display: inline-flex; align-items: center; min-height: 21px; padding: 0 7px; border: 1px solid rgba(255,255,255,.5); border-radius: 4px; color: #fff; font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.demo-banner { display: inline-flex; align-items: center; gap: 7px; padding: 7px 11px; border-radius: 999px; background: var(--warm); color: var(--warning); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.lp-hero { padding: 42px 0 48px; background: #faf7ef; }
.lp-hero-grid { display: grid; gap: 30px; align-items: center; }
.lp-hero .hero-title { margin-top: 18px; font-size: clamp(32px, 8vw, 56px); }
.lp-hero .hero-copy { font-size: 16px; }
.lp-hero-art { position: relative; min-height: 260px; padding: 24px; border-radius: var(--radius-lg); background: #e8f2ed; }
.lp-hero-art::after { content: ""; position: absolute; right: 28px; bottom: 28px; width: 130px; height: 130px; border: 1px solid rgba(45,112,104,.25); border-radius: 50%; box-shadow: 0 0 0 20px rgba(45,112,104,.05), 0 0 0 42px rgba(45,112,104,.05); }
.lp-hero-art h3 { max-width: 200px; margin: 45px 0 0; font-size: 22px; line-height: 1.4; }
.demo-label { color: var(--warning); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.conclusion { padding: 26px; border: 1px solid var(--accent-soft); border-radius: var(--radius-lg); background: var(--surface-accent); }
.conclusion h2 { margin: 0; font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif; font-size: clamp(22px, 4vw, 30px); line-height: 1.4; letter-spacing: -.03em; }
.conclusion p { margin: 10px 0 0; color: var(--ink-soft); }
.number-grid { display: grid; gap: 10px; margin-top: 24px; }
.number-item { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.number-item .number { color: var(--accent); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.number-item strong { display: block; margin-top: 9px; font-size: 16px; }
.number-item p { margin: 5px 0 0; color: var(--ink-soft); font-size: 13px; }
.criteria-grid { grid-template-columns: repeat(1, 1fr); }
.criteria-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.criteria-card .criteria-no { color: var(--accent); font-weight: 900; }
.criteria-card h3 { margin: 8px 0 5px; font-size: 17px; }
.criteria-card p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); -webkit-overflow-scrolling: touch; }
.table-hint { display: none; margin: 9px 0 0; color: var(--ink-soft); font-size: 11px; }
.compare-table { width: 100%; min-width: 650px; border-collapse: collapse; font-size: 13px; }
.compare-table th, .compare-table td { padding: 15px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare-table th { background: var(--surface-accent); color: var(--accent-dark); font-size: 12px; white-space: nowrap; }
.compare-table th:first-child, .compare-table td:first-child { position: sticky; left: 0; z-index: 1; background: var(--surface); font-weight: 800; }
.compare-table th:first-child { background: var(--surface-accent); }
.compare-table tr:last-child td { border-bottom: 0; }
.good { color: var(--accent-dark); font-weight: 800; }
.purpose-grid { grid-template-columns: repeat(1, 1fr); }
.purpose-button { display: block; width: 100%; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; font: inherit; }
.purpose-button:hover, .purpose-button.is-active { border-color: var(--accent); background: var(--surface-accent); }
.purpose-button strong { display: block; font-size: 15px; }
.purpose-button span { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 12px; }
.purpose-result { margin-top: 14px; padding: 20px; border-radius: var(--radius-md); background: var(--ink); color: #fff; }
.purpose-result strong { display: block; color: var(--accent-soft); }
.purpose-result p { margin: 5px 0 0; color: rgba(255,255,255,.78); font-size: 13px; }
.product-grid { grid-template-columns: repeat(1, 1fr); }
.product-card { position: relative; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); }
.product-card.is-featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.rank { color: var(--accent); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.product-card h3 { margin: 10px 0 5px; font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif; font-size: 22px; }
.product-card .product-copy { min-height: 60px; margin: 0; color: var(--ink-soft); font-size: 13px; }
.product-price { margin: 18px 0; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-price small { display: block; color: var(--ink-soft); font-size: 11px; }
.product-price strong { font-size: 24px; letter-spacing: -.04em; }
.product-card ul { min-height: 92px; margin: 16px 0; padding-left: 1.1em; color: var(--ink-soft); font-size: 13px; }
.product-card li + li { margin-top: 5px; }
.fit-list { display: grid; gap: 10px; }
.fit-item { padding: 16px 18px; border-left: 3px solid var(--accent); background: var(--surface); }
.fit-item strong { display: block; font-size: 14px; }
.fit-item p { margin: 4px 0 0; color: var(--ink-soft); font-size: 13px; }
.conditions { display: grid; gap: 10px; }
.condition-row { display: grid; grid-template-columns: 100px 1fr; gap: 13px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.condition-row dt { color: var(--ink-soft); font-size: 12px; }
.condition-row dd { margin: 0; font-size: 13px; }
.source-list { margin: 0; padding-left: 1.2em; color: var(--ink-soft); font-size: 12px; }
.source-list li + li { margin-top: 7px; }
.source-list a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.update-note { color: var(--ink-soft); font-size: 12px; }

@media (max-width: 699px) {
  .table-hint { display: block; }
  .pr-banner { justify-content: flex-start; align-items: flex-start; white-space: normal; text-align: left; }
}

@media (min-width: 700px) {
  .container, .narrow { width: min(100% - 56px, 1120px); }
  .narrow { max-width: 820px; }
  .header-inner { padding: 0 28px; }
  .main-nav { display: flex; }
  .header-cta { display: inline-flex; min-height: 36px; padding: 0 14px; border-radius: 999px; background: var(--surface-accent); color: var(--accent-dark); font-size: 12px; font-weight: 800; }
  .hero-inner { grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); padding: 100px 0; }
  .hero-art { min-height: 360px; }
  .category-grid { grid-template-columns: repeat(4, 1fr); }
  .feature-card { grid-template-columns: .9fr 1.1fr; }
  .feature-visual { min-height: 310px; }
  .latest-grid { grid-template-columns: 1fr 1fr; }
  .split-panel { grid-template-columns: .9fr 1.1fr; padding: 42px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .definition-row { grid-template-columns: 180px 1fr; gap: 20px; }
  .lp-hero-grid { grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); }
  .number-grid { grid-template-columns: repeat(3, 1fr); }
  .criteria-grid { grid-template-columns: repeat(3, 1fr); }
  .purpose-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1100px) {
  .container, .narrow { width: min(100% - 80px, 1120px); }
  .section { padding: 88px 0; }
  .page-hero { padding: 90px 0 64px; }
}