@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;600;700;800&display=swap');
:root{--navy:#15283a;--blue:#218ec4;--teal:#22ad91;--sky:#edf9fb;--pale:#f6f9fb;--line:#dbe4e9;--text:#263746;--muted:#687985;--orange:#f59e0b;--white:#fff;--shadow:0 4px 14px rgba(28,55,72,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);font-family:'Noto Sans JP',sans-serif;line-height:1.75;background:#fff}a{color:inherit;text-decoration:none}.shell{width:min(1080px,calc(100% - 40px));margin:auto}.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:12px;z-index:99;background:#fff;padding:10px}.site-header{height:70px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.header-inner{width:min(1080px,calc(100% - 40px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:9px;color:var(--blue);font-size:20px}.brand span{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;font-size:15px}.header-inner nav{display:flex;gap:30px;font-size:13px;font-weight:700}.header-inner nav a:hover{color:var(--blue)}.menu{display:none;border:0;background:none;font-size:24px}.home-hero{background:linear-gradient(135deg,#eefaff,#effcf8);text-align:center;padding:85px 0 92px}.hero-label{font-size:11px;letter-spacing:.18em;color:var(--blue);font-weight:800}.home-hero h1{margin:12px 0 18px;font-size:clamp(38px,5vw,57px);line-height:1.3;letter-spacing:-.04em;color:var(--navy)}.home-hero h1 em{font-style:normal;color:var(--blue)}.home-hero>div>p:not(.hero-label,.search-result){color:var(--muted);font-size:17px}.hero-button{display:inline-block;background:var(--blue);color:#fff;font-weight:800;padding:13px 30px;border-radius:8px;margin:22px 0 28px;box-shadow:0 5px 14px #218ec43d}.site-search{display:flex;gap:10px;width:min(650px,100%);margin:auto}.site-search input{flex:1;border:1px solid var(--line);border-radius:9px;padding:15px 17px;font:inherit;background:#fff;box-shadow:var(--shadow)}.site-search button{border:0;border-radius:9px;padding:0 22px;color:#fff;background:var(--blue);font-weight:800}.search-result{font-size:12px;color:var(--blue);margin:8px}.home-section{padding:75px 0}.muted{background:var(--pale)}.section-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.section-title h2{margin:0;font-size:27px;color:var(--navy)}.section-title a{font-size:13px;color:var(--blue);font-weight:700}.popular-grid,.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-tile,.latest-card,.category-card{background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow);transition:.18s}.article-tile:hover,.latest-card:hover,.category-card:hover{transform:translateY(-3px);border-color:#a9d9e8}.article-tile{padding:22px;min-height:175px}.article-tile p{margin:0;display:flex;gap:8px;align-items:center;color:var(--blue);font-size:12px;font-weight:700}.article-tile i{font-style:normal;display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:var(--blue);color:#fff}.article-tile h3,.latest-card h3{font-size:17px;line-height:1.5;margin:12px 0 8px;color:var(--navy)}.article-tile small,.latest-card p,.category-card p{font-size:12px;color:var(--muted);line-height:1.7}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.category-card{text-align:center;padding:22px 14px;min-height:155px}.category-card>b{font-size:28px}.category-card h3{font-size:15px;margin:6px 0}.category-card p{margin:0}.latest-card{display:block;padding:22px;min-height:200px}.latest-card span{font-size:11px;color:var(--blue);font-weight:700}.latest-card time{font-size:11px;color:var(--muted)}.affiliate{margin-top:55px;margin-bottom:55px;padding:16px 24px;border:1px solid #f0d88e;border-radius:9px;background:#fffbed;color:#8b6a16;font-size:12px;text-align:center}footer{background:#f1f5f7;border-top:1px solid var(--line);padding:55px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px}.footer-grid h3{font-size:14px}.footer-grid p,.footer-grid a{display:block;font-size:12px;color:var(--muted);margin:8px 0}.brand.light{color:var(--blue)}.copyright{text-align:center;border-top:1px solid var(--line);margin:38px auto 0;padding-top:20px;font-size:11px;color:var(--muted);width:min(1080px,calc(100% - 40px))}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.article-main{padding:30px 0 70px}.article-shell{width:min(1120px,calc(100% - 40px));margin:auto}.breadcrumbs{display:flex;gap:8px;font-size:11px;color:var(--muted);margin-bottom:25px}.article-columns{display:grid;grid-template-columns:minmax(0,820px) 240px;gap:34px;align-items:start}.post-head h1{font-size:31px;line-height:1.45;color:var(--navy);margin:10px 0}.post-category{font-size:11px;color:var(--blue);font-weight:700}.post-date{display:flex;gap:16px;font-size:10px;color:var(--muted)}.editor-pick{border:1px solid #f0d58b;background:#fffdf4;border-radius:11px;margin:30px 0;overflow:hidden}.pick-label{padding:8px 16px;font-size:12px;font-weight:800;color:#a26b00;border-bottom:1px solid #f1dfaa}.pick-label small{margin-left:10px;color:var(--muted);font-weight:400}.pick-body{display:grid;grid-template-columns:80px 1fr 150px;gap:16px;align-items:center;padding:18px}.product-placeholder{display:grid;place-items:center;min-height:60px;border-radius:8px;background:linear-gradient(145deg,#e8f8fb,#dff6ed);color:var(--blue);font-size:10px;font-weight:800;letter-spacing:.12em}.pick-body h2{font-size:16px;margin:2px 0}.pick-body strong{font-size:12px}.pick-body p{font-size:10px;color:var(--muted);margin:3px 0}.shop-button{display:inline-flex;justify-content:center;padding:10px 13px;border-radius:6px;color:#fff;font-size:12px;font-weight:800}.rakuten{background:var(--orange)}.comparison{margin:28px 0}.price-note,.table-foot{font-size:10px;color:var(--muted)}.sort-buttons{display:flex;gap:8px;margin:12px 0}.sort-buttons button{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 12px;border-radius:6px;font-size:11px;font-weight:700}.sort-buttons button.active{background:var(--blue);border-color:var(--blue);color:#fff}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px}.table-wrap table{border-collapse:collapse;width:100%;min-width:700px;font-size:11px}.table-wrap th{padding:12px 10px;text-align:left;background:#f2f7fa;color:var(--muted);white-space:nowrap}.table-wrap td{padding:14px 10px;border-top:1px solid var(--line);vertical-align:middle}.table-wrap tbody tr:nth-child(even){background:#f9fbfc}.table-wrap td b,.table-wrap td small{display:block}.table-wrap td small{color:var(--muted)}.table-wrap td em{font-style:normal;background:var(--teal);color:#fff;border-radius:10px;padding:3px 7px;white-space:nowrap;font-weight:700}.rank{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;font-style:normal;font-weight:800;background:#cbd6dc;color:#fff}.rank.first{background:#f4b400}.rank.second{background:#8fa6b8}.rank.third{background:#d77a16}.mini-shop{display:inline-block;margin-top:4px;border:1px solid var(--orange);background:#fff;color:#b96f00;padding:4px 7px;border-radius:4px;font-size:9px}.prose{font-size:14px}.prose h2,.faq h2,.details>h2{font-size:23px;color:var(--navy);margin:42px 0 14px}.prose h3{font-size:17px;margin:28px 0 8px}.prose p,.prose li{color:#485b68}.prose code{display:block;background:#17232d;color:#fff;padding:12px 15px;margin:14px 0}.table-wrap.simple{margin:20px 0}.faq details{border:1px solid var(--line);border-radius:9px;margin:10px 0;background:#fff}.faq summary{list-style:none;padding:14px;font-weight:700;font-size:13px;cursor:pointer}.faq summary span,.faq p span{display:inline-grid;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--blue);color:#fff;margin-right:8px}.faq p{margin:0;border-top:1px solid var(--line);padding:14px;font-size:12px;color:var(--muted)}.faq p span{background:var(--teal)}.product-card{border:1px solid var(--line);border-radius:11px;overflow:hidden;box-shadow:var(--shadow)}.product-head{display:grid;grid-template-columns:38px 78px 1fr;gap:13px;align-items:center;padding:18px}.product-head h3{font-size:16px;margin:3px 0}.product-head p{font-size:11px;color:var(--muted)}.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:20px;background:#f7fafb;padding:18px;font-size:11px}.pros-cons b:first-child{color:var(--teal)}.pros-cons div+div b{color:#e05252}.for-whom{margin:14px 18px;background:#eaf8fc;padding:9px;font-size:11px}.product-card>.shop-button{margin:0 18px 18px}.ad-box{margin-top:30px;padding:16px;border:1px solid #f0d88e;background:#fffbed;border-radius:8px;font-size:11px;color:#806316}.side-box{position:sticky;top:92px;border:1px solid var(--line);background:#f7fafb;border-radius:10px;padding:16px;margin-bottom:14px}.side-box+.side-box{position:static}.side-box b,.side-box a{display:block;font-size:12px}.side-box a{padding:7px 0;color:var(--muted);border-bottom:1px solid var(--line)}.side-box p{font-size:11px;color:var(--muted)}
.searchable.is-hidden{display:none}
@media(max-width:820px){.header-inner nav{display:none}.header-inner.open{height:auto;min-height:70px;flex-wrap:wrap;padding:12px 0}.header-inner.open nav{display:flex;order:3;width:100%;justify-content:space-between;padding:12px 0}.menu{display:block}.popular-grid,.latest-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.article-columns{grid-template-columns:1fr}.article-columns aside{display:none}}
@media(max-width:560px){.shell,.header-inner,.article-shell{width:min(100% - 26px,1080px)}.home-hero{padding:55px 0}.home-hero h1{font-size:36px}.home-hero>div>p:not(.hero-label,.search-result){font-size:14px}.site-search{align-items:stretch}.site-search button{padding:0 14px}.popular-grid,.latest-grid{grid-template-columns:1fr}.category-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr;gap:24px}.article-tile{min-height:auto}.post-head h1{font-size:24px}.pick-body{grid-template-columns:62px 1fr}.pick-body .shop-button{grid-column:1/-1}.post-date{display:grid;gap:2px}.pros-cons{grid-template-columns:1fr}.category-card{min-height:140px}.header-inner.open nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}}
.brand-picture{display:block;position:relative;width:232px;height:58px;overflow:hidden;flex:0 0 auto}.brand-picture img{position:absolute;width:240px;height:auto;max-width:none;left:-5px;top:-51px}.footer-logo{margin-left:-5px}.footer-logo img{filter:none}@media(max-width:560px){.brand-picture{width:192px;height:52px}.brand-picture img{width:200px;left:-4px;top:-42px}}
.post-lead{color:var(--muted);font-size:14px}.safety-alert{margin:26px 0;padding:16px 18px;border:1px solid #efc86b;border-left:5px solid var(--orange);border-radius:8px;background:#fff9e8;font-size:12px}.safety-alert b{color:#8a5b00}.safety-alert p{margin:5px 0 0}.article-toc{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:9px;overflow:hidden;margin:25px 0}.article-toc b{grid-column:1/-1;background:#eef5f8;padding:10px 14px}.article-toc a{background:#fff;padding:10px 14px;font-size:11px;color:var(--blue)}.source-note{padding:13px 15px;background:#eef8fb;border-radius:7px;color:var(--muted);font-size:11px}.use-cases{display:grid;grid-template-columns:1fr 1fr;gap:12px}.use-cases>div{padding:16px;border:1px solid var(--line);border-radius:8px;background:#f8fbfc}.use-cases b{color:var(--navy)}.use-cases p{font-size:12px;margin:6px 0}.mini-shop.pending{border-color:var(--line);color:var(--muted)}@media(max-width:560px){.article-toc{grid-template-columns:1fr 1fr}.use-cases{grid-template-columns:1fr}}