:root{color-scheme:light;--navy-900:#0a1730;--navy-800:#142542;--teal-600:#0a6892;--teal-700:#095575;--teal-500:#1f86ac;--teal-tint:rgba(10,104,146,0.08);--teal-tint-strong:rgba(10,104,146,0.14);--amber-600:#a3660a;--amber-tint:rgba(215,145,22,0.14);--background:#f4f7f9;--surface:#ffffff;--surface-muted:#eef3f6;--surface-sunken:#f7fafc;--text:var(--navy-900);--muted:#55636f;--line:#dbe4ea;--accent:var(--teal-600);--accent-strong:var(--teal-700);--warning:var(--amber-600);--radius-sm:6px;--radius-md:10px;--radius-lg:18px;--shadow-sm:0 1px 2px rgba(10,23,48,0.06),0 1px 1px rgba(10,23,48,0.04);--shadow-md:0 12px 28px -16px rgba(10,23,48,0.28);--shadow-lg:0 24px 48px -20px rgba(10,23,48,0.32);--transition:160ms ease}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--background);color:var(--text);font-family:var(--font-noto-sans-jp),"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,Arial,sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit}a,button{transition:color var(--transition),background-color var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition)}::selection{background:var(--teal-tint-strong);color:var(--navy-900)}:focus-visible{border-radius:4px;outline:2px solid var(--accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important}}.site-footer,.site-header{background:var(--surface);padding:16px clamp(20px,5vw,56px)}.site-header{align-items:center;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);display:flex;gap:24px;justify-content:space-between;position:sticky;top:0;z-index:40}@supports ((-webkit-backdrop-filter:blur(10px)) or (backdrop-filter:blur(10px))){.site-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:rgba(255,255,255,.9)}}.brand{display:inline-flex;flex-shrink:0;text-decoration:none}.brand:hover{opacity:.85}.brand-logo{display:block;height:auto;width:190px}.site-nav{display:flex;flex-wrap:wrap;gap:8px;font-size:.95rem}.site-nav a{border-radius:var(--radius-sm);color:var(--navy-900);font-weight:700;padding:8px 12px;text-decoration:none}.site-nav a:hover{background:var(--teal-tint);color:var(--accent-strong)}.article-link{color:var(--accent-strong);font-weight:700;text-decoration-color:var(--teal-500);text-decoration-thickness:2px;text-underline-offset:4px}.article-link:hover{color:var(--teal-500)}.site-footer{border-bottom:0;border-top:1px solid var(--line);color:var(--muted);padding-bottom:32px;padding-top:32px}.breadcrumb,.footer-nav{display:flex;flex-wrap:wrap;gap:10px 16px}.footer-nav{margin-top:12px}.breadcrumb a,.footer-nav a{color:var(--accent-strong);font-weight:700;text-decoration:none}.breadcrumb a:hover,.footer-nav a:hover{color:var(--teal-500);text-decoration:underline;text-underline-offset:3px}.breadcrumb{color:var(--muted);font-size:.88rem;margin:0 auto 24px;max-width:880px}.page{margin:0 auto;max-width:1120px;padding:48px clamp(20px,5vw,56px) 88px}.hero{display:grid;gap:32px;grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr);padding:24px 0 48px;position:relative}.hero:before{background:radial-gradient(circle,var(--teal-tint-strong) 0,transparent 70%);content:"";filter:blur(8px);height:420px;pointer-events:none;position:absolute;right:-80px;top:-60px;width:420px;z-index:-1}.eyebrow{background:var(--teal-tint);border-radius:999px;color:var(--accent-strong);display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.02em;margin:0 0 14px;padding:6px 14px}h1{font-size:clamp(2rem,5vw,3.6rem);font-weight:800;letter-spacing:-.01em;line-height:1.2;margin:0;scroll-margin-top:96px}.lead{color:var(--muted);font-size:1.12rem;margin:20px 0 0;max-width:720px}.cta-band,.hero-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px 24px 26px;position:relative}.cta-band:before,.hero-panel:before{background:linear-gradient(135deg,var(--teal-500),var(--accent-strong));border-radius:var(--radius-lg) var(--radius-lg) 0 0;content:"";height:4px;left:0;position:absolute;right:0;top:0}.cta-band h2,.hero-panel h2{font-size:1.2rem;margin:0 0 12px}.article ul,.hero-panel ul{padding-left:1.25rem}.hero-panel li+li{margin-top:6px}.button{background:linear-gradient(135deg,var(--teal-500),var(--accent-strong));border:0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);color:#ffffff;cursor:pointer;display:inline-flex;font-weight:700;margin-top:16px;padding:12px 20px;text-decoration:none}.button:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.button:active{box-shadow:var(--shadow-sm);transform:translateY(0)}.a8-text-ad{display:inline}.a8-text-ad__pixel{border:0;height:1px;width:1px}.affiliate-disclosure{background:var(--surface-muted);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius-sm);color:var(--muted);font-size:.92rem;font-weight:700;margin:18px 0 24px;padding:10px 14px}.affiliate-cta{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin:24px 0;padding:20px}.affiliate-cta h2{font-size:1.18rem;line-height:1.35;margin:6px 0 8px}.affiliate-cta__meta{display:grid;gap:10px;margin:16px 0}.affiliate-cta__meta div{border-top:1px solid var(--line);padding-top:10px}.affiliate-cta__meta dt{color:var(--muted);font-size:.85rem;font-weight:700}.affiliate-cta__meta dd{margin:4px 0 0}.affiliate-cta__note{color:var(--muted)}.affiliate-cta__button{margin-top:4px;max-width:100%;overflow-wrap:anywhere}.affiliate-decision-cta{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin:28px 0;padding:20px}.affiliate-decision-cta h2{font-size:1.22rem;line-height:1.35;margin:6px 0 8px}.affiliate-decision-cta__lead{color:var(--muted);margin:0 0 14px}.affiliate-decision-cta__list{display:grid;gap:0}.affiliate-decision-cta__item{align-items:center;border-top:1px solid var(--line);display:grid;gap:12px;grid-template-columns:minmax(0,1fr) auto;padding:16px 0}.affiliate-decision-cta__item h3{font-size:1rem;margin:0 0 4px}.affiliate-decision-cta__item p{color:var(--muted);margin:0}.affiliate-decision-cta__button{margin-top:0;max-width:100%;overflow-wrap:anywhere}.section{margin-top:56px}.article-heading,.section h2{border-bottom:1px solid var(--line);font-size:1.6rem;font-weight:800;line-height:1.35;margin:0 0 20px;padding-bottom:12px;scroll-margin-top:96px}.article-subheading{font-size:1.25rem;font-weight:700;margin:32px 0 12px;scroll-margin-top:96px}.grid{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);display:block;padding:20px;text-decoration:none}.card:hover{border-color:var(--teal-500);box-shadow:var(--shadow-md);transform:translateY(-3px)}.card h3{color:var(--text);font-size:1.1rem;margin:0 0 8px}.card:hover h3{color:var(--accent-strong)}.card p{color:var(--muted);margin:0}.comparison-list{display:grid;gap:12px;margin:24px 0}.comparison-list__item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);display:grid;gap:16px;grid-template-columns:8rem minmax(0,1fr);padding:16px}.comparison-list__label{color:var(--accent-strong);font-weight:700;margin:2px 0 0}.comparison-list__columns{display:grid;gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}.comparison-list__columns>div{background:var(--surface-sunken);border-radius:var(--radius-sm);padding:12px}.comparison-list__heading{color:var(--muted);font-size:.86rem;font-weight:700;margin:0 0 6px}.comparison-list__columns p:last-child{margin:0}.reading-guide-list{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));margin:24px 0 0}.reading-guide-card{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--teal-500);border-radius:var(--radius-md);display:grid;gap:12px;padding:18px}.reading-guide-card h3{font-size:1.08rem;line-height:1.45;margin:2px 0 0}.reading-guide-card__eyebrow{color:var(--muted);font-size:.82rem;font-weight:700;margin:0}.reading-guide-card__links{display:flex;flex-wrap:wrap;gap:8px 14px}.reading-guide-card__links .article-link{line-height:1.5}.reading-guide-card__tags{display:flex;flex-wrap:wrap;gap:8px}.reading-guide-card__tags span{background:var(--surface-muted);border-radius:999px;color:var(--muted);font-size:.84rem;font-weight:700;line-height:1.3;padding:5px 9px}.article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin:0 auto;max-width:880px;padding:clamp(24px,5vw,48px)}.article h1{font-size:clamp(2rem,4vw,3rem)}.article p{margin:16px 0}.article table,.article-table{background:var(--surface);border:1px solid var(--line);border-collapse:separate;border-radius:var(--radius-md);border-spacing:0;box-shadow:var(--shadow-sm);font-size:.96rem;line-height:1.8;margin:24px 0;max-width:100%;overflow:hidden;table-layout:fixed;width:100%}.article td,.article th,.article-table td,.article-table th{border:0;padding:14px 16px;text-align:left;vertical-align:top}.article th,.article-table th{background:var(--teal-tint);color:var(--accent-strong);font-size:.9rem;font-weight:700;letter-spacing:.02em}.article tbody tr+tr td,.article-table tbody tr+tr td{border-top:1px solid var(--line)}.article tbody tr:hover td,.article-table tbody tr:hover td{background:var(--surface-muted)}.table-scroll{margin:24px 0;max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain}.article .table-scroll table{margin:0;min-width:860px;table-layout:auto}.article .table-scroll--contract table{min-width:1320px}.article td:first-child,.article-table td:first-child{background:var(--surface-sunken);color:var(--accent-strong);font-weight:700;width:8.5rem}.article tbody tr:hover td:first-child,.article-table tbody tr:hover td:first-child{background:var(--teal-tint)}.article th:first-child,.article-table th:first-child{width:8.5rem}.note{background:var(--surface-muted);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:16px}.warning{color:var(--warning);font-weight:700}@media (max-width:760px){.hero,.site-header{align-items:start;grid-template-columns:1fr}.site-header{flex-direction:column}.brand-logo{width:170px}.hero:before{display:none}.comparison-list__columns,.comparison-list__item,.grid,.reading-guide-list{grid-template-columns:1fr}.affiliate-decision-cta__item{align-items:start;grid-template-columns:1fr}.affiliate-decision-cta__ad,.affiliate-decision-cta__button{width:100%}.article td,.article th,.article-table td,.article-table th{padding:10px 12px}.article table,.article-table{font-size:.9rem}}