@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

:root{
  --accent:#16a34a;
  --accent-dark:#166534;
  --accent-light:#dcfce7;
  --accent-soft:#f0fdf4;
  --gold:#ea580c;
  --ink:#1e293b;
  --ink-soft:#475569;
  --line:#e2e8f0;
  --bg:#f8fafc;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 4px 16px rgba(15,23,42,.06);
  --shadow-lg:0 12px 32px rgba(15,23,42,.10);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Sans",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.4;}
p{margin:0 0 1em;}
.container{max-width:1080px;margin:0 auto;padding:0 20px;}

/* ---------- PR Bar ---------- */
.pr-bar{
  background:var(--ink);
  color:#cbd5e1;
  font-size:.75rem;
  text-align:center;
  padding:6px 12px;
  letter-spacing:.02em;
}

/* ---------- Header ---------- */
header.site-header{
  background:var(--white);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:100;
}
.header-inner{
  max-width:1080px;
  margin:0 auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  font-size:1.25rem;
  font-weight:900;
  color:var(--accent-dark);
  display:flex;
  align-items:center;
  gap:8px;
}
.logo span.mark{
  background:var(--accent);
  color:#fff;
  width:34px;height:34px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;justify-content:center;
  font-size:1rem;
}
nav.main-nav ul{display:flex;gap:28px;}
nav.main-nav a{
  font-size:.92rem;
  font-weight:500;
  color:var(--ink-soft);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:.2s;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--accent-dark);border-color:var(--accent);}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--ink);}

@media(max-width:820px){
  nav.main-nav{
    position:absolute;top:100%;left:0;right:0;
    background:var(--white);
    border-bottom:1px solid var(--line);
    display:none;
    box-shadow:var(--shadow);
  }
  nav.main-nav.open{display:block;}
  nav.main-nav ul{flex-direction:column;padding:8px 20px 18px;gap:2px;}
  nav.main-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);}
  .nav-toggle{display:block;}
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(160deg,var(--accent-soft) 0%,#ffffff 60%);
  padding:56px 0 40px;
  text-align:center;
}
.hero .eyebrow{
  display:inline-block;
  background:var(--accent-light);
  color:var(--accent-dark);
  font-size:.8rem;
  font-weight:700;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:18px;
}
.hero h1{
  font-size:clamp(1.6rem,4vw,2.4rem);
  font-weight:900;
  color:var(--ink);
  margin-bottom:16px;
}
.hero h1 em{color:var(--accent-dark);font-style:normal;}
.hero p.lead{
  color:var(--ink-soft);
  max-width:640px;
  margin:0 auto 22px;
  font-size:1rem;
}
.update-note{font-size:.8rem;color:#94a3b8;}

/* ---------- Section ---------- */
section{padding:56px 0;}
.section-head{text-align:center;margin-bottom:36px;}
.section-head .tag{
  color:var(--accent-dark);
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.06em;
}
.section-head h2{
  font-size:clamp(1.3rem,3vw,1.8rem);
  font-weight:900;
  margin-top:8px;
}
.section-head p{color:var(--ink-soft);margin-top:10px;}

/* ---------- Ranking Cards ---------- */
.rank-list{display:flex;flex-direction:column;gap:20px;}
.rank-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
  display:grid;
  grid-template-columns:64px 1.4fr 1fr auto;
  gap:20px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.rank-card.rank-1{border:2px solid var(--gold);box-shadow:var(--shadow-lg);}
.rank-badge{
  width:56px;height:56px;
  border-radius:50%;
  background:var(--accent-light);
  color:var(--accent-dark);
  font-weight:900;
  font-size:1.4rem;
  display:flex;align-items:center;justify-content:center;
}
.rank-card.rank-1 .rank-badge{background:var(--gold);color:#fff;}
.rank-card.rank-2 .rank-badge{background:#cbd5e1;color:#334155;}
.rank-card.rank-3 .rank-badge{background:#e7c9a9;color:#7c4a12;}
.rank-main .name{font-size:1.15rem;font-weight:700;margin-bottom:6px;}
.rank-main .stars{color:var(--gold);font-size:.9rem;margin-bottom:6px;}
.rank-main .tags{display:flex;flex-wrap:wrap;gap:6px;}
.rank-main .tags span{
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-size:.72rem;
  padding:3px 10px;
  border-radius:999px;
  font-weight:700;
}
.rank-price{text-align:right;}
.rank-price .price{font-size:1.5rem;font-weight:900;color:var(--accent-dark);}
.rank-price .price small{font-size:.75rem;font-weight:500;color:var(--ink-soft);}
.rank-price .note{font-size:.72rem;color:#94a3b8;}
.btn{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  font-weight:700;
  font-size:.9rem;
  padding:12px 22px;
  border-radius:999px;
  text-align:center;
  transition:.2s;
  white-space:nowrap;
}
.btn:hover{background:var(--accent-dark);}
.btn.outline{background:transparent;color:var(--accent-dark);border:1.5px solid var(--accent);}
.btn.outline:hover{background:var(--accent-soft);}
.btn.block{display:block;width:100%;text-align:center;}

@media(max-width:700px){
  .rank-card{grid-template-columns:44px 1fr;}
  .rank-price{grid-column:2;text-align:left;display:flex;align-items:center;gap:14px;}
}

/* ---------- Table ---------- */
.table-scroll{overflow-x:auto;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);}
table.compare{
  width:100%;
  border-collapse:collapse;
  min-width:760px;
  font-size:.9rem;
}
table.compare th,table.compare td{
  padding:16px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:middle;
}
table.compare thead th{
  background:var(--accent-dark);
  color:#fff;
  font-weight:700;
  position:sticky;top:0;
}
table.compare tbody tr:hover{background:var(--accent-soft);}
table.compare td.price{font-weight:900;color:var(--accent-dark);font-size:1rem;}
table.compare td.center{text-align:center;}

.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.filter-btn{
  border:1.5px solid var(--line);
  background:var(--white);
  padding:8px 18px;
  border-radius:999px;
  font-size:.85rem;
  font-weight:700;
  color:var(--ink-soft);
  cursor:pointer;
}
.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;}
.step-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 22px;}
.step-card .num{
  width:38px;height:38px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:900;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.step-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px;}
.step-card p{color:var(--ink-soft);font-size:.9rem;margin:0;}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(120deg,var(--accent-dark),var(--accent));
  color:#fff;
  border-radius:20px;
  padding:44px 32px;
  text-align:center;
}
.cta-banner h2{font-size:1.5rem;font-weight:900;margin-bottom:12px;}
.cta-banner p{color:#dbeafe;margin-bottom:22px;}
.cta-banner .btn{background:#fff;color:var(--accent-dark);}
.cta-banner .btn:hover{background:#f1f5f9;}

/* ---------- FAQ ---------- */
.faq details{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 20px;
  margin-bottom:12px;
}
.faq summary{font-weight:700;cursor:pointer;list-style:none;position:relative;padding-right:24px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";position:absolute;right:0;top:0;font-size:1.2rem;color:var(--accent);}
.faq details[open] summary::after{content:"−";}
.faq .a{color:var(--ink-soft);margin-top:12px;font-size:.92rem;}

/* ---------- Article ---------- */
.article{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px;}
.article h2{font-size:1.3rem;font-weight:900;margin:36px 0 14px;padding-top:10px;border-top:1px solid var(--line);}
.article h2:first-child{border-top:none;margin-top:0;}
.article h3{font-size:1.05rem;font-weight:700;margin:20px 0 10px;color:var(--accent-dark);}
.article p{color:var(--ink-soft);}
.article ul{margin:0 0 1em;padding-left:1.2em;list-style:disc;color:var(--ink-soft);}
.article li{margin-bottom:6px;}
.toc{background:var(--accent-soft);border-radius:12px;padding:22px 26px;margin-bottom:30px;}
.toc h3{margin:0 0 10px;font-size:.95rem;}
.toc ol{padding-left:1.2em;margin:0;color:var(--accent-dark);font-weight:700;font-size:.9rem;}
.toc li{margin-bottom:6px;}
.toc a{color:inherit;}

/* ---------- Info page (about/privacy/contact) ---------- */
.info-box{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px;}
.info-box h2{font-size:1.15rem;font-weight:800;margin:30px 0 12px;color:var(--accent-dark);}
.info-box h2:first-child{margin-top:0;}
.info-box p,.info-box li{color:var(--ink-soft);}
.info-box table{width:100%;border-collapse:collapse;margin-top:10px;}
.info-box table th,.info-box table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:.92rem;}
.info-box table th{width:150px;color:var(--ink);}

form.contact-form{display:flex;flex-direction:column;gap:16px;max-width:520px;}
form.contact-form label{font-weight:700;font-size:.88rem;display:block;margin-bottom:6px;}
form.contact-form input,form.contact-form textarea,form.contact-form select{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:.92rem;background:var(--bg);
}
form.contact-form textarea{min-height:140px;resize:vertical;}
.form-note{background:var(--accent-soft);border-radius:10px;padding:14px 18px;font-size:.82rem;color:var(--accent-dark);}

/* ---------- Footer ---------- */
footer.site-footer{
  background:var(--ink);
  color:#cbd5e1;
  margin-top:60px;
  padding:48px 0 24px;
  font-size:.85rem;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:30px;}
.footer-grid h4{color:#fff;font-size:.9rem;margin-bottom:14px;}
.footer-grid p{color:#94a3b8;}
.footer-grid ul li{margin-bottom:8px;}
.footer-grid a{color:#cbd5e1;}
.footer-grid a:hover{color:#fff;}
.footer-bottom{border-top:1px solid #334155;padding-top:20px;color:#64748b;text-align:center;font-size:.78rem;}
@media(max-width:700px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:.8rem;color:#94a3b8;padding:16px 0;}
.breadcrumb a{color:var(--accent-dark);}

/* utility */
.mt-0{margin-top:0;}
.center{text-align:center;}