/* 3サイト共通テーマ。サイト固有色は body の style 属性で --c1/--c2/--c3 を上書きする */
:root{--c1:#0f766e;--c2:#134e4a;--c3:#f0fdfa;--ink:#172033;--sub:#4b5565;--mute:#6b7280;--line:#e4e7ec;--bg:#ffffff;--wash:#f7f8fa;--gold:#b7791f;--gold-bg:#fff8e6;--red:#c2410c;--r:14px;--shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px -12px rgba(16,24,40,.18)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI",Meiryo,system-ui,sans-serif;font-size:16.5px;line-height:1.95;letter-spacing:.02em;overflow-wrap:anywhere;font-feature-settings:"palt" 1}
img,svg{display:block;max-width:100%;height:auto}
a{color:var(--c1);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--c1);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:12px;top:-60px;background:#fff;padding:8px 12px;z-index:50}.skip:focus{top:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:780px;margin:0 auto}
/* header */
.hd{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;font-size:18px;letter-spacing:.03em}
.logo i{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;font-style:normal;font-size:16px}
.nav{display:flex;gap:22px;font-size:14px;font-weight:700}.nav a{color:var(--sub);text-decoration:none}.nav a:hover{color:var(--c1)}
.pr{font-size:12px;color:var(--mute);background:var(--wash);border-bottom:1px solid var(--line)}.pr .wrap{padding:5px 24px}
/* hero */
.hero{background:radial-gradient(1200px 400px at 85% -10%,var(--c3),transparent 70%),linear-gradient(180deg,#fff, #fff);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;padding-top:56px;padding-bottom:56px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;padding:4px 12px;border-radius:999px;background:var(--c3);color:var(--c2);font-size:13px;font-weight:800;letter-spacing:.06em}
h1,h2,h3{word-break:auto-phrase}
.hero h1{margin:0 0 18px;font-size:clamp(30px,4.4vw,46px);line-height:1.35;letter-spacing:.01em;font-weight:900;text-wrap:balance}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,rgba(250,204,21,.45) 62%)}
.lead{margin:0 0 22px;color:var(--sub);font-size:17px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 22px;border-radius:12px;background:var(--c1);color:#fff;font-weight:800;text-decoration:none;box-shadow:0 2px 0 rgba(0,0,0,.14);transition:transform .15s,filter .15s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--c1);border:2px solid var(--c1);box-shadow:none}
.btn.cta{background:linear-gradient(180deg,#f97316,#ea580c);font-size:16.5px;width:100%;max-width:440px}
.btn.cta:after{content:"›";font-size:22px;line-height:1}
.verdict{position:relative;padding:26px 26px 22px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.verdict .tag{position:absolute;top:-13px;left:22px;padding:3px 12px;border-radius:999px;background:var(--gold);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.08em}
.verdict h2{margin:4px 0 6px;font-size:22px;line-height:1.5}
.verdict p{margin:0 0 12px;color:var(--sub);font-size:15px}
.spec-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px;padding:0;list-style:none}
.spec-chips li{padding:4px 10px;border-radius:8px;background:var(--wash);border:1px solid var(--line);font-size:13px;font-weight:700}
/* sections */
.sec{padding:64px 0;border-bottom:1px solid var(--line)}
.sec.alt{background:var(--wash)}
.sec-h{margin:0 0 8px;font-size:clamp(24px,3vw,32px);line-height:1.45;font-weight:900}
.sec-sub{margin:0 0 30px;color:var(--sub)}
.kicker{margin:0 0 6px;color:var(--c1);font-size:13px;font-weight:900;letter-spacing:.12em}
/* ranking cards */
.rank{display:grid;gap:20px}
.rcard{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(220px,280px);gap:22px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.rcard .no{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--wash);font-size:22px;font-weight:900;color:var(--sub)}
.rcard:first-child{border:2px solid var(--gold)}.rcard:first-child .no{background:var(--gold);color:#fff}
.rcard h3{margin:0 0 4px;font-size:20px;line-height:1.5}
.rcard .for{margin:0 0 10px;color:var(--c2);font-weight:800;font-size:14.5px}
.rcard p{margin:0;color:var(--sub);font-size:15px}
.rcard .act{display:grid;gap:8px;justify-items:stretch}
.rcard .act .btn{width:100%}
.rcard .act small{color:var(--mute);font-size:12px;text-align:center}
/* table */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff;-webkit-overflow-scrolling:touch;margin:24px 0}
.tbl table{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;white-space:nowrap}
.tbl td.w{white-space:normal;min-width:180px}
.tbl thead th{background:var(--c2);color:#fff;font-weight:800;position:sticky;top:0}
.tbl tbody th{background:var(--wash);font-weight:800;position:sticky;left:0;z-index:1}
.tbl tr:last-child>*{border-bottom:0}
.tbl .best{background:var(--gold-bg);font-weight:800}
.tbl .best:before{content:"◎ ";color:var(--gold)}
.note{color:var(--mute);font-size:13px;line-height:1.8}
/* decision chart */
.pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(196px,1fr));gap:16px}
.pick a{display:block;padding:20px;border-radius:16px;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none;box-shadow:var(--shadow);transition:transform .15s}
.pick a:hover{transform:translateY(-2px)}
.pick b{display:block;margin:0 0 6px;color:var(--c1);font-size:13px;letter-spacing:.06em}
.pick strong{display:block;font-size:18px;line-height:1.5}
.pick span{display:block;margin-top:6px;color:var(--sub);font-size:14px}
/* article */
.bc{padding:18px 0 0;font-size:12.5px;color:var(--mute)}.bc a{color:var(--mute)}
.art-h{padding:22px 0 26px}
.art-h h1{margin:0 0 14px;font-size:clamp(27px,3.6vw,38px);line-height:1.45;font-weight:900;text-wrap:pretty}
.meta{display:flex;flex-wrap:wrap;gap:6px 16px;color:var(--mute);font-size:13px}
.answer{margin:26px 0;padding:22px 24px;border-radius:16px;background:linear-gradient(135deg,var(--c3),#fff);border:1px solid var(--line);border-left:6px solid var(--c1)}
.answer b.lbl{display:block;margin-bottom:4px;color:var(--c1);font-size:13px;letter-spacing:.1em}
.answer p{margin:0;font-size:17px;font-weight:700;line-height:1.85}
.toc{margin:30px 0;padding:20px 24px;border-radius:14px;background:var(--wash);border:1px solid var(--line)}
.toc b{font-size:14px}.toc ol{margin:8px 0 0;padding-left:22px}.toc li{margin:3px 0}.toc a{color:var(--ink);text-decoration:none}.toc a:hover{color:var(--c1)}
.body h2{margin:56px 0 18px;padding:0 0 10px;font-size:clamp(22px,2.6vw,27px);line-height:1.5;border-bottom:3px solid var(--line);position:relative;font-weight:900}
.body h2:after{content:"";position:absolute;left:0;bottom:-3px;width:72px;height:3px;background:var(--c1)}
.body h3{margin:34px 0 12px;font-size:19.5px;line-height:1.55;padding-left:12px;border-left:5px solid var(--c1)}
.body p{margin:0 0 22px}
.body ul,.body ol{margin:0 0 22px;padding-left:1.4em}.body li{margin:4px 0}
.body strong{background:linear-gradient(transparent 64%,rgba(250,204,21,.4) 64%)}
.point{margin:26px 0;padding:18px 20px;border-radius:14px;background:var(--gold-bg);border:1px solid #f5d98a}
.point b{display:block;margin-bottom:4px;color:var(--gold);font-size:13.5px;letter-spacing:.08em}
.point p:last-child,.point ul:last-child{margin-bottom:0}
.warn{margin:26px 0;padding:18px 20px;border-radius:14px;background:#fff4ed;border:1px solid #fed7aa}
.warn b{display:block;margin-bottom:4px;color:var(--red);font-size:13.5px}
.warn p:last-child{margin-bottom:0}
.steps{counter-reset:s;list-style:none;padding:0!important}
.steps li{counter-increment:s;position:relative;padding:2px 0 14px 48px;margin:0!important}
.steps li:before{content:counter(s);position:absolute;left:0;top:2px;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--c1);color:#fff;font-weight:900;font-size:15px}
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;margin:0 0 10px}
.faq summary{cursor:pointer;padding:14px 18px;font-weight:800;list-style:none;position:relative;padding-right:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:18px;top:10px;font-size:22px;color:var(--c1)}
.faq details[open] summary:after{content:"−"}
.faq details>div{padding:0 18px 16px;color:var(--sub)}
/* CTA box */
.ctabox{position:relative;margin:36px 0;padding:24px;border-radius:18px;border:2px solid var(--c1);background:#fff;box-shadow:var(--shadow)}
.ctabox .pr-tag{position:absolute;top:-11px;right:18px;padding:1px 9px;border-radius:6px;background:#eef0f3;color:var(--mute);font-size:11px;font-weight:800;letter-spacing:.1em}
.ctabox .ttl{display:flex;align-items:center;gap:10px;margin:0 0 6px;font-size:19px;font-weight:900;line-height:1.5}
.ctabox .ttl span{padding:2px 9px;border-radius:6px;background:var(--gold);color:#fff;font-size:12px;letter-spacing:.06em}
.ctabox ul{margin:10px 0 16px;padding:0;list-style:none}
.ctabox li{position:relative;padding-left:26px;margin:4px 0;font-size:15px}
.ctabox li:before{content:"";position:absolute;left:4px;top:.55em;width:12px;height:7px;border-left:3px solid var(--c1);border-bottom:3px solid var(--c1);transform:rotate(-45deg)}
.ctabox .go{display:grid;justify-items:center;gap:6px}
.ctabox .go small{color:var(--mute);font-size:12px}
.ctabox img[width="1"]{width:1px;height:1px;position:absolute}
/* tools */
.tool{margin:34px 0;padding:26px;border-radius:18px;background:var(--wash);border:1px solid var(--line)}
.tool h2,.tool h3{margin-top:0!important;border:0!important;padding:0!important}
.tool h2:after{display:none}
.tool .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.tool label{display:grid;gap:6px;font-size:14px;font-weight:700}
.tool input,.tool select{width:100%;min-height:46px;padding:10px 12px;border:1px solid #c5cad3;border-radius:10px;background:#fff;font:inherit;font-size:16px;color:var(--ink)}
.tool .chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.tool .chips button{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font:inherit;font-size:13.5px;font-weight:700;cursor:pointer}
.tool .chips button[aria-pressed="true"]{background:var(--c1);border-color:var(--c1);color:#fff}
.tool output{display:block;margin-top:18px;padding:18px 20px;border-radius:14px;background:#fff;border-left:6px solid var(--c1);font-size:16px;line-height:1.8}
.tool output strong{font-size:26px;color:var(--c2);background:none}
.tool .res-row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding:6px 0}
.tool .res-row:last-child{border-bottom:0}
/* author */
.author{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;margin:48px 0 0;padding:22px;border-radius:16px;background:var(--wash);border:1px solid var(--line)}
.author .av{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;font-weight:900;font-size:22px}
.author p{margin:0;font-size:14px;color:var(--sub)}.author b{display:block;color:var(--ink);font-size:15px}
.related{margin:40px 0 0}.related h2{font-size:20px!important}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;color:var(--ink);text-decoration:none;box-shadow:var(--shadow);transition:transform .15s}
.card:hover{transform:translateY(-2px)}
.card .thumb{aspect-ratio:1.9;background:linear-gradient(135deg,var(--c3),#fff);display:grid;place-items:center;border-bottom:1px solid var(--line)}
.card .thumb svg{width:64px;height:64px;color:var(--c1)}
.card div.t{padding:16px 18px 18px}
.card h3{margin:0 0 6px;font-size:16.5px;line-height:1.6}
.card p{margin:0;color:var(--sub);font-size:13.5px;line-height:1.75}
/* footer */
.ft{padding:44px 0 90px;background:#0f172a;color:#cbd5e1;font-size:14px}
.ft a{color:#e2e8f0}.ft .cols{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px}
.ft nav{display:flex;flex-wrap:wrap;gap:8px 20px}
.ft small{display:block;margin-top:18px;color:#94a3b8;font-size:12px;line-height:1.8}
/* sticky mobile CTA */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:40;display:none;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);border-top:1px solid var(--line);box-shadow:0 -6px 20px -12px rgba(0,0,0,.25)}
.sticky a{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:48px;padding:8px 16px;border-radius:12px;background:linear-gradient(180deg,#f97316,#ea580c);color:#fff;font-weight:800;text-decoration:none;font-size:15px}
.sticky a small{display:block;font-size:11px;font-weight:700;opacity:.9}
.sticky .x{position:absolute;right:6px;top:-30px;width:28px;height:28px;border:0;border-radius:50%;background:#334155;color:#fff;cursor:pointer}
@media (max-width:900px){
 .hero .wrap{grid-template-columns:1fr;gap:28px;padding-top:36px;padding-bottom:40px}
 .rcard{grid-template-columns:auto minmax(0,1fr)}.rcard .act{grid-column:1/-1}
 .nav{display:none}
}
@media (max-width:640px){
 body{font-size:16px}
 .wrap{padding:0 16px}.pr .wrap{padding:5px 16px}
 .sec{padding:44px 0}
 .rcard{padding:18px;gap:14px}.rcard .no{width:42px;height:42px;font-size:18px}
 .ctabox,.tool{padding:20px 16px}
 .answer{padding:18px}
 .sticky.on{display:block}
 .author{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.hd,.sticky,.ctabox,.tool{display:none}}