:root{--bg:#f6f7f9;--card:#fff;--text:#1d2733;--muted:#5a6676;--line:#d9dee6;--accent:#0b6bcb;--accent-dark:#084f99;--warn:#8a4b00;--ok:#18794e}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif}
.pr-banner,.pr-notice{background:#fff4d6;border:1px solid #e6c766;color:#5b4300;font-size:.875rem;font-weight:700;padding:.4rem .8rem;text-align:center}
.pr-notice{border-radius:6px;margin:1rem 0 .5rem}
.site-header{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center;justify-content:space-between;padding:.75rem 1rem;background:#fff;border-bottom:1px solid var(--line)}
.site-name{font-weight:700;color:var(--text);text-decoration:none}
.site-header nav a,.site-footer nav a{margin-right:1rem;color:var(--accent);font-size:.9rem}
main{max-width:860px;margin:0 auto;padding:1rem}
h1{font-size:1.5rem;line-height:1.4}
h2{font-size:1.2rem;line-height:1.4;margin-top:1.5rem}
.lead{color:var(--muted)}
.small{font-size:.85rem;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem;margin:1rem 0}
.fields{display:grid;grid-template-columns:1fr;gap:.9rem}
.field-group{border:0;margin:0;padding:0}
.field-group legend{font-weight:700;padding:0;margin-bottom:.4rem}
.field{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.8rem}
.field label{font-weight:600}
.field .row{display:flex;align-items:center;gap:.5rem}
.field input[type=number],.field select{width:100%;min-height:48px;font-size:1rem;padding:.5rem .7rem;border:1px solid #b5bdc9;border-radius:8px;background:#fff}
.field input[type=checkbox]{width:24px;height:24px}
.field .unit{white-space:nowrap;color:var(--muted)}
.field .help{font-size:.8rem;color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:.6rem}
.btn{min-height:48px;padding:.6rem 1.1rem;border:1px solid var(--accent);background:#fff;color:var(--accent);border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-dark)}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.metric{background:#f0f5fb;border-radius:10px;padding:.7rem}
.metric .v{font-size:1.35rem;font-weight:800}
.metric .k{font-size:.8rem;color:var(--muted)}
table.compare{width:100%;border-collapse:collapse;font-size:.9rem;margin:.5rem 0}
table.compare th,table.compare td{border-bottom:1px solid var(--line);padding:.5rem .3rem;text-align:left}
table.compare td.num{text-align:right;white-space:nowrap}
table.compare tr.best{background:#eaf7f0}
.bar{height:10px;background:#cfe0f5;border-radius:5px;overflow:hidden;margin-top:.25rem}
.bar>span{display:block;height:100%;background:var(--accent)}
.notes li,.warn li{margin:.3rem 0}
.warn{color:var(--warn)}
.disclaimer{font-size:.85rem;color:var(--muted);border-left:4px solid var(--line);padding-left:.7rem;margin:1rem 0}
.cta-area .offer{border:1px solid var(--line);border-radius:10px;padding:.8rem;margin:.6rem 0}
.cta-area .offer a{font-weight:700}
.cta-area .guide h3{margin:.2rem 0}
.cta-area img.pixel{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.article-list{padding-left:1.2rem}
.site-footer{max-width:860px;margin:2rem auto 3rem;padding:0 1rem}
@media(min-width:720px){.fields{grid-template-columns:1fr 1fr}.field-group{grid-column:1/-1}.field-group .group-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}.metrics{grid-template-columns:repeat(4,1fr)}}