:root{
  --ink:#172033;--muted:#607087;--line:#dbe2ea;--bg:#f6f8fb;
  --brand:#155eef;--brand-dark:#0f46b5;--accent:#eaf1ff;
  --ok:#effaf3;--warn:#fff7e6;--card:#fff;--max:1120px;--radius:18px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.78}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:auto;padding:0 24px}
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.nav{height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-weight:800;font-size:20px;color:var(--ink)}.navlinks{display:flex;gap:22px;font-size:14px}
.hero{padding:72px 0 46px;background:linear-gradient(180deg,#f4f8ff 0,#fff 100%)}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:42px;align-items:center}
.eyebrow{display:inline-block;background:var(--accent);color:var(--brand-dark);padding:7px 12px;border-radius:999px;font-weight:700;font-size:13px}
h1{font-size:44px;line-height:1.25;margin:16px 0 18px;letter-spacing:-.02em}
h2{font-size:30px;line-height:1.35;margin:0 0 14px}h3{font-size:21px;line-height:1.45;margin:0 0 10px}
.lead,.section-lead{color:var(--muted)}.lead{font-size:18px;margin:0 0 28px}
.hero-note{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 14px 32px rgba(30,60,100,.08)}
.checks{list-style:none;padding:0;margin:12px 0 0}.checks li{margin:8px 0}.checks li:before{content:"✓";color:var(--brand);font-weight:800;margin-right:8px}
section{padding:58px 0}section.alt{background:var(--bg)}
.purpose-grid,.use-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.purpose,.use,.type-card,.service-card,.info-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--card)}
.purpose .num{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:.08em}.purpose p,.use p{color:var(--muted);font-size:14px}
.btn{display:inline-flex;justify-content:center;align-items:center;border-radius:12px;padding:12px 18px;font-weight:800;background:var(--brand);color:#fff}
.btn:hover{background:var(--brand-dark);text-decoration:none}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.callout{border-left:5px solid var(--brand);background:var(--accent);padding:20px 22px;border-radius:12px;margin:24px 0}
.warning{border-left:5px solid #d28a00;background:var(--warn);padding:20px 22px;border-radius:12px;margin:24px 0}
.types,.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:14px}
.comparison-table{min-width:980px}
th,td{padding:14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
th{background:#f8fafc;font-size:12px;letter-spacing:.02em;position:sticky;top:0}tr:last-child td{border-bottom:0}
small,.note{color:var(--muted);font-size:12px}
.service-grid,.rec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.service-card .service-price{font-size:20px;font-weight:800}.service-label{font-size:12px;color:var(--brand);font-weight:800;margin-bottom:8px}
.spec-list{margin:18px 0}.spec-list div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}
.spec-list dt{font-weight:700;color:var(--muted)}.spec-list dd{margin:0}
.article{max-width:840px}.article p{margin:0 0 1.25em}.article h2{margin-top:48px;padding-top:8px}.article h3{margin-top:30px}
.article ul,.article ol{padding-left:1.4em}.article li{margin:.45em 0}
.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0}.breadcrumb span{margin-left:8px}.breadcrumb a{color:var(--muted)}
.toc{border:1px solid var(--line);background:#fff;border-radius:16px;padding:20px;margin:26px 0}.toc strong{display:block;margin-bottom:8px}.toc a{display:block;padding:4px 0}
.final-cta{padding:36px;border-radius:24px;background:#15284b;color:#fff}.final-cta h2{color:#fff}.final-cta p{color:#dce6f7}
.text-link{font-size:12px}.footer-grid{display:flex;justify-content:space-between;gap:32px;align-items:flex-start}
.footer-links{display:grid;gap:8px}footer{padding:34px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.copyright{margin-top:16px}
@media(max-width:860px){
 .nav{height:auto;min-height:66px;flex-wrap:wrap;gap:0;padding-top:12px;padding-bottom:8px}.navlinks{display:flex;flex-wrap:wrap;gap:0 16px;width:100%;font-size:12px}.navlinks a{padding:6px 0}.hero{padding-top:48px}.hero-grid,.types,.two-col{grid-template-columns:1fr}h1{font-size:34px}
 .purpose-grid,.use-grid{grid-template-columns:1fr}.service-grid,.rec-grid{grid-template-columns:1fr}.footer-grid{display:grid}
}
@media(max-width:520px){.container{padding:0 16px}h1{font-size:30px}h2{font-size:25px}section{padding:42px 0}}

/* v1の配色・余白・装飾を保った共通UI補正 */
body{overflow-wrap:anywhere}
.hero-grid>*,.types>*,.two-col>*,.service-grid>*,.rec-grid>*{min-width:0}
.table-wrap{max-width:100%;overscroll-behavior-x:contain}
.table-hint{margin-bottom:8px}
.service-card{display:flex;flex-direction:column}
.service-card .btn{margin-top:auto}
.btn{max-width:100%;text-align:center;min-height:44px}
[id]{scroll-margin-top:90px}
:focus-visible{outline:3px solid var(--brand);outline-offset:4px}
.skip-link{position:fixed;left:16px;top:8px;transform:translateY(-160%);padding:8px 16px;background:#fff;z-index:20}
.skip-link:focus{transform:none}
@media(max-width:860px){[id]{scroll-margin-top:140px}.nav.container{padding-top:12px;padding-bottom:8px}}
@media(max-width:520px){.final-cta{padding:24px}.spec-list div{grid-template-columns:80px minmax(0,1fr)}.article table:not(.comparison-table) th{width:32%;position:static}.logo{font-size:19px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.affiliate-pixel{position:absolute;width:1px;height:1px;overflow:hidden}
.vpn-quick-list{margin:24px 0;border-top:2px solid var(--brand)}
.vpn-quick-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);border-bottom:1px solid var(--line)}
.vpn-quick-row dt{padding:18px;background:#f3f7ff;font-weight:700}
.vpn-quick-row dd{margin:0;padding:18px;min-width:0}
.vpn-quick-option+.vpn-quick-option{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.vpn-quick-option p{margin:6px 0 0}
.vpn-quick-option .text-link{display:inline-block;padding:4px 0}
.vpn-quick-price{font-size:15px}
@media(max-width:600px){.vpn-quick-row{grid-template-columns:minmax(0,1fr)}.vpn-quick-row dt,.vpn-quick-row dd{padding:14px}}