:root{--bg: #fcfcfc;--bg-elev: #ffffff;--bg-card: #ffffff;--bg-soft: #f5f7fa;--bg-tint: #fff5ea;--bg-tint-strong: #ffe4cc;--fg: #2d2d2d;--fg-soft: #4a4a4a;--fg-muted: #7d7d7d;--brand: #ff7e33;--brand-soft: #ffa766;--brand-deep: #ea5e0e;--brand-ink: #ffffff;--accent: #3a8dde;--accent-soft: #79b1ec;--border: #e8eaee;--border-strong: #d0d4dc;--danger: #e54e3a;--success: #10b981;--max: 1180px;--max-prose: 740px;--radius-sm: 8px;--radius: 14px;--radius-lg: 22px;--shadow-sm: 0 1px 2px rgba(20, 20, 30, .05);--shadow: 0 4px 16px rgba(20, 20, 30, .08);--shadow-lg: 0 12px 32px rgba(20, 20, 30, .1);--font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, -apple-system, "Segoe UI", sans-serif;--font-display: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace}@media(prefers-color-scheme:dark){:root{--bg: #1a1c20;--bg-elev: #23262c;--bg-card: #262932;--bg-soft: #20232a;--bg-tint: #2c241e;--bg-tint-strong: #3a2c1f;--fg: #ebecee;--fg-soft: #c2c4c9;--fg-muted: #8b8e95;--brand: #ff9a5c;--brand-soft: #ffb98a;--brand-deep: #f97e30;--brand-ink: #1a1c20;--accent: #6fa9e8;--accent-soft: #9bc2ed;--border: #353841;--border-strong: #4a4d57;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 4px 24px rgba(0, 0, 0, .32);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .42)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-sans);font-feature-settings:"palt";line-height:1.85;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--brand-deep);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}img{max-width:100%;height:auto;display:block}.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--brand-ink);padding:8px 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a{color:var(--fg-soft);font-weight:600;padding:8px 2px;border-bottom:3px solid transparent;font-size:.95rem;transition:color .15s ease,border-color .15s ease}.site-nav a:hover{color:var(--brand-deep);text-decoration:none}.site-nav a[aria-current=page]{color:var(--brand-deep);border-bottom-color:var(--brand)}.site-main{max-width:var(--max);margin:0 auto;padding:32px 24px 80px}.hero{padding:56px 0 32px;position:relative}.hero:before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 80% at 90% 10%,color-mix(in oklab,var(--brand) 12%,transparent) 0%,transparent 60%),radial-gradient(50% 60% at 5% 90%,color-mix(in oklab,var(--accent) 8%,transparent) 0%,transparent 60%);z-index:-1}.hero__eyebrow{margin:0 0 14px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);font-size:.78rem;font-weight:800}.hero__title{font-family:var(--font-display);font-size:clamp(2rem,5.4vw,3.5rem);line-height:1.18;margin:0 0 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28px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:1200 / 630;background:var(--bg-soft)}.article__hero img{width:100%;height:100%;object-fit:cover}.article__header{margin:8px 0 28px}.article__cat{display:inline-block;margin:0 0 14px;background:var(--brand);color:#fff;padding:5px 14px;border-radius:999px;font-size:.84rem;font-weight:700;box-shadow:0 2px 6px #ff7e3340}.article__title{font-family:var(--font-display);font-size:clamp(1.7rem,3.8vw,2.4rem);line-height:1.32;margin:0 0 18px;letter-spacing:-.018em;font-weight:900;color:var(--fg)}.article__meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--fg-muted);font-size:.88rem}.article__pr-notice{display:flex;align-items:flex-start;gap:10px;margin:16px 0 18px;padding:12px 14px;background:var(--bg-tint);border:1px solid 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var(--border-strong)}.toc__item:first-child{border-top:0;padding-top:8px}.toc__item--2{counter-increment:toc-counter;font-weight:700}.toc__item--2:before{content:counter(toc-counter,decimal-leading-zero);position:absolute;left:0;top:7px;color:var(--brand-deep);font-weight:800;font-size:.78rem;font-family:var(--font-display)}.toc__item--3{padding-left:46px;font-size:.86rem;color:var(--fg-soft)}.toc__item--3:before{content:"–";position:absolute;left:30px;top:5px;color:var(--brand-soft)}.toc a{color:var(--fg-soft);text-decoration:none}.toc a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}.prose{font-size:1.04rem;color:var(--fg-soft);line-height:1.92}.prose>p:first-of-type:first-letter{font-family:var(--font-display);font-weight:900;font-size:3.4rem;float:left;line-height:.9;margin:.18em .14em 0 0;color:var(--brand)}.prose h2{font-family:var(--font-display);margin:2.6em 0 1em;font-size:1.4rem;font-weight:900;letter-spacing:-.01em;padding:16px 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strong{color:var(--fg);font-weight:800;background:linear-gradient(transparent 65%,color-mix(in oklab,var(--brand) 38%,transparent) 65%);padding:0 2px}.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.7em}.prose li{margin:.4em 0}.prose ul li::marker{color:var(--brand);font-weight:800;content:"●  "}.prose ol li::marker{color:var(--brand-deep);font-weight:800}.prose blockquote{margin:1.6em 0;padding:18px 22px 18px 26px;border-left:5px solid var(--brand);background:var(--bg-tint);color:var(--fg-soft);border-radius:0 var(--radius) var(--radius) 0;font-size:.98rem;position:relative;box-shadow:var(--shadow-sm)}.prose blockquote>:first-child{margin-top:0}.prose blockquote>:last-child{margin-bottom:0}.prose blockquote strong:first-child{color:var(--brand-deep);font-size:.86rem;letter-spacing:.06em;text-transform:uppercase;display:block;margin-bottom:8px;background:none;padding:0}.prose blockquote p:first-child strong:first-child{display:inline;font-size:1em;letter-spacing:0;text-transform:none;color:var(--fg);background:linear-gradient(transparent 65%,color-mix(in oklab,var(--brand) 38%,transparent) 65%);padding:0 2px}.prose code{font-family:var(--font-mono);font-size:.92em;background:var(--bg-tint);padding:2px 8px;border-radius:6px;border:1px solid var(--brand-soft);color:var(--brand-deep)}.prose pre{background:var(--bg-soft);border:1px solid var(--border);padding:16px 18px;border-radius:var(--radius);overflow-x:auto;font-size:.92rem}.prose pre code{background:transparent;border:0;padding:0;color:inherit}.prose a{color:var(--brand-deep);font-weight:700;word-break:break-word;border-bottom:2px solid color-mix(in oklab,var(--brand) 35%,transparent)}.prose a:hover{text-decoration:none;border-bottom-color:var(--brand);background:var(--bg-tint)}.prose hr{margin:2.6em 0;border:0;border-top:1px dashed var(--border-strong)}.prose table{border-collapse:collapse;width:100%;margin:1.6em 0;font-size:.94rem;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}.prose th,.prose td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);border-right:1px solid var(--border)}.prose th:last-child,.prose td:last-child{border-right:0}.prose tr:last-child td{border-bottom:0}.prose th{background:linear-gradient(180deg,color-mix(in oklab,var(--brand) 14%,var(--bg-elev)),color-mix(in oklab,var(--brand) 6%,var(--bg-elev)));color:var(--fg);font-weight:800}.prose tbody tr:nth-child(2n){background:var(--bg-soft)}@media(max-width:640px){.prose table{display:block;overflow-x:auto}}.aff-card{position:relative;margin:2em 0;background:var(--bg-card);border:2px solid var(--brand-soft);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.aff-card:before{content:"";position:absolute;left:-2px;right:-2px;top:-2px;height:6px;background:linear-gradient(90deg,var(--brand),var(--brand-deep));border-radius:var(--radius) var(--radius) 0 0}.aff-card__pr{position:absolute;top:14px;right:16px;margin:0;font-size:.7rem;letter-spacing:.1em;color:var(--fg-muted);background:var(--bg-soft);padding:3px 9px;border-radius:4px;border:1px solid var(--border);font-weight:600}.aff-card__body{display:grid;grid-template-columns:130px 1fr;gap:20px;align-items:start}.aff-card__image{border-radius:8px;border:1px solid var(--border)}.aff-card__name{margin:4px 0 8px;font-weight:800;font-size:1.08rem;font-family:var(--font-display);color:var(--fg);line-height:1.4}.aff-card__price{margin:0 0 8px;color:var(--brand-deep);font-weight:800;font-size:1.05rem}.aff-card__note{margin:0 0 14px;color:var(--fg-soft);font-size:.9rem;line-height:1.65}.aff-card__buy{display:inline-block;padding:12px 26px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff!important;border-radius:999px;font-weight:800;text-decoration:none!important;border-bottom:none!important;box-shadow:0 4px 12px #ff7e3359;transition:transform .15s ease,box-shadow .15s ease;font-size:.98rem;letter-spacing:.02em}.aff-card__buy:hover{transform:translateY(-2px);box-shadow:0 6px 18px #ff7e3373;background:linear-gradient(135deg,var(--brand-deep),var(--brand))}.aff-card__buy:after{content:" →";font-weight:800}@media(max-width:520px){.aff-card__body{grid-template-columns:1fr}}.ad-banner{position:relative;display:flex;flex-direction:column;align-items:center;margin:2.4em 0;padding:30px 20px 22px;background:var(--bg-soft);border:1px dashed var(--border-strong);border-radius:var(--radius)}.ad-banner__pr{position:absolute;top:10px;right:14px;margin:0;font-size:.7rem;letter-spacing:.1em;color:var(--fg-muted);background:var(--bg-elev);padding:3px 9px;border-radius:4px;border:1px solid var(--border);font-weight:600}.ad-banner__lead{margin:0 0 14px;font-size:.94rem;font-weight:700;color:var(--fg-soft);text-align:center}.ad-banner a{display:inline-block;border-bottom:0!important;text-decoration:none!important}.ad-banner img{display:block;max-width:100%;height:auto;border-radius:8px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}.ad-banner a:hover img{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.bubble{position:relative;background:var(--bg-tint);border:2px solid var(--brand-soft);border-radius:var(--radius);padding:16px 20px;margin:1.6em 0 1.6em 64px;font-size:.96rem;line-height:1.7;color:var(--fg-soft)}.bubble:before{content:"";position:absolute;left:-64px;top:0;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-deep));border:2px solid var(--brand-soft);background-image:radial-gradient(circle at 35% 40%,#fff 5%,transparent 6%),radial-gradient(circle at 65% 40%,#fff 5%,transparent 6%),radial-gradient(circle at 50% 65%,#fff 5%,transparent 6%)}.bubble:after{content:"";position:absolute;left:-14px;top:18px;width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;border-right:14px solid var(--brand-soft)}.bubble>:first-child{margin-top:0}.bubble>:last-child{margin-bottom:0}.related-callout{background:var(--bg-tint);border:2px dashed var(--brand-soft);border-radius:var(--radius);padding:16px 20px;margin:1.6em 0;font-size:.96rem}.related-callout:before{content:"🔗 あわせて読みたい";display:block;font-family:var(--font-display);font-weight:800;color:var(--brand-deep);margin-bottom:8px;font-size:.9rem;letter-spacing:.04em}.related-callout a{color:var(--fg);font-weight:700;border-bottom:2px solid var(--brand-soft)}.static-page{max-width:var(--max-prose);margin:0 auto}.static-page h1{font-family:var(--font-display);font-size:clamp(1.6rem,3.6vw,2.2rem);margin:6px 0 22px;padding-bottom:14px;border-bottom:3px solid var(--brand);font-weight:900;letter-spacing:-.01em;color:var(--fg)}.static-page h2{font-family:var(--font-display);margin:2em 0 .6em;font-size:1.22rem;font-weight:800;padding:12px 18px;background:var(--bg-tint);border-left:5px solid var(--brand);border-radius:0 var(--radius) var(--radius) 0;color:var(--fg)}.static-page p{margin:0 0 1.2em}.static-page ul{margin:0 0 1.4em;padding-left:1.5em}.static-page li{margin:.3em 0}.static-page li::marker{color:var(--brand);font-weight:700}.static-page code{font-family:var(--font-mono);font-size:.92em;background:var(--bg-tint);padding:2px 8px;border-radius:6px;border:1px solid var(--brand-soft);color:var(--brand-deep)}.static-page a{color:var(--brand-deep);font-weight:700;border-bottom:2px solid color-mix(in oklab,var(--brand) 35%,transparent)}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:96px}.site-footer__inner{max-width:var(--max);margin:0 auto;padding:36px 24px;display:grid;gap:16px}.site-footer__name{margin:0;font-weight:800;font-family:var(--font-display);font-size:1.12rem;color:var(--fg)}.site-footer__tag{margin:4px 0 0;color:var(--fg-muted);font-size:.92rem}.site-footer__nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:16px 22px}.site-footer__nav a{color:var(--fg-soft);font-size:.92rem;font-weight:600}.site-footer__nav a:hover{color:var(--brand-deep)}.site-footer__copy{margin:8px 0 0;color:var(--fg-muted);font-size:.84rem}