:root{
  --gold:#C9A84C;--gold-l:#F5E9C8;--gold-d:#8B6914;--gold-ll:#E8C96A;
  --dark:#1A1A1A;--dark2:#2C2C2C;--warm:#FAFAF7;--cream:#F7F3E8;
  --text:#222;--soft:#555;--muted:#888;
  --shadow:0 8px 40px rgba(201,168,76,.15);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Serif JP',serif;background:var(--warm);color:var(--text);overflow-x:hidden;}

/* HEADER */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(26,26,26,.97);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,168,76,.3);height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;}
.logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;}
.logo-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--gold),var(--gold-ll));border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'DM Serif Display',serif;font-size:1rem;color:var(--dark);font-weight:700;}
.logo-text{color:#fff;font-size:.85rem;letter-spacing:.05em;}
.logo-text span{color:var(--gold-ll);font-weight:700;}
nav a{color:rgba(255,255,255,.65);text-decoration:none;font-size:.88rem;letter-spacing:.08em;transition:color .2s;margin-left:1.5rem;}
nav a:hover{color:var(--gold-ll);}

/* HERO */
.hero{background:var(--dark);padding:8rem 2rem 5rem;text-align:center;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 50%,rgba(201,168,76,.1) 0%,transparent 70%);}
.hero-label{display:inline-flex;align-items:center;gap:.5rem;background:rgba(201,168,76,.15);border:1px solid rgba(201,168,76,.35);color:var(--gold-ll);font-size:.72rem;letter-spacing:.18em;padding:.4rem 1.2rem;margin-bottom:1.5rem;animation:fadeUp .8s ease both;}
.hero h1{font-family:'Shippori Mincho',serif;font-size:clamp(1.8rem,4vw,3rem);color:#fff;line-height:1.4;margin-bottom:1rem;animation:fadeUp .8s .1s ease both;}
.hero h1 em{font-style:normal;color:var(--gold-ll);}
.hero-sub{font-size:1.05rem;color:rgba(255,255,255,.55);line-height:2;max-width:560px;margin:0 auto 2rem;animation:fadeUp .8s .2s ease both;}
.hero-stats{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;animation:fadeUp .8s .3s ease both;}
.stat{text-align:center;}
.stat-num{font-family:'DM Serif Display',serif;font-size:2rem;color:var(--gold-ll);}
.stat-label{font-size:.72rem;color:rgba(255,255,255,.4);letter-spacing:.08em;margin-top:.2rem;}

/* MAIN */
main{max-width:1100px;margin:0 auto;padding:4rem 2rem;}

/* STEP BLOCK */
.step-block{margin-bottom:4rem;}
.step-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--gold-l);}
.step-badge{font-family:'DM Serif Display',serif;font-size:.75rem;letter-spacing:.15em;color:var(--gold);background:var(--gold-l);padding:.35rem .9rem;white-space:nowrap;}
.step-title{font-family:'Shippori Mincho',serif;font-size:1.45rem;font-weight:700;color:var(--dark);}
.step-desc{font-size:1rem;color:var(--soft);line-height:1.8;margin-bottom:1.5rem;}

/* ARTICLE GRID */
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.2rem;}
.article-card{background:#fff;border:1px solid rgba(0,0,0,.06);padding:1.5rem;transition:all .3s;text-decoration:none;color:inherit;display:block;position:relative;}
.article-card:hover{border-color:rgba(201,168,76,.4);box-shadow:var(--shadow);transform:translateY(-3px);}
.article-card.gold-card{background:linear-gradient(160deg,var(--dark) 0%,#222 100%);border:1px solid rgba(201,168,76,.3);}
.card-num{font-family:'DM Serif Display',serif;font-size:.7rem;letter-spacing:.15em;color:var(--gold);margin-bottom:.5rem;display:block;}
.article-card.gold-card .card-num{color:var(--gold-ll);}
.card-title{font-family:'Shippori Mincho',serif;font-size:1.05rem;font-weight:700;color:var(--dark);line-height:1.5;margin-bottom:.6rem;}
.article-card.gold-card .card-title{color:#fff;}
.card-desc{font-size:.92rem;color:var(--soft);line-height:1.8;}
.article-card.gold-card .card-desc{color:rgba(255,255,255,.5);}
.card-tags{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.8rem;}
.tag{font-size:.65rem;padding:.2rem .5rem;background:rgba(0,0,0,.04);color:var(--muted);}
.article-card.gold-card .tag{background:rgba(201,168,76,.15);color:var(--gold);}
.card-arrow{position:absolute;bottom:1.2rem;right:1.2rem;font-size:.8rem;color:var(--gold);opacity:0;transition:opacity .2s;}
.article-card:hover .card-arrow{opacity:1;}

/* FEATURED */
.featured-banner{background:var(--dark);border-top:3px solid var(--gold);padding:2rem;margin-bottom:4rem;display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;}
.featured-label{font-size:.7rem;letter-spacing:.2em;color:var(--gold);margin-bottom:.6rem;}
.featured-title{font-family:'Shippori Mincho',serif;font-size:1.4rem;color:#fff;line-height:1.4;margin-bottom:.8rem;}
.featured-desc{font-size:.98rem;color:rgba(255,255,255,.5);line-height:1.9;}
.featured-links{display:flex;flex-direction:column;gap:.6rem;}
.featured-link{display:flex;align-items:center;gap:.8rem;padding:.85rem 1rem;background:rgba(255,255,255,.04);border:1px solid rgba(201,168,76,.2);color:rgba(255,255,255,.7);text-decoration:none;font-size:.95rem;transition:all .2s;}
.featured-link:hover{background:rgba(201,168,76,.1);border-color:rgba(201,168,76,.4);color:var(--gold-ll);}
.featured-link span{font-size:.7rem;color:var(--gold);margin-left:auto;}

/* CTA */
.cta-section{background:linear-gradient(135deg,var(--gold-d),var(--gold),var(--gold-ll));padding:4rem 2rem;text-align:center;margin:0 -2rem;}
.cta-section h2{font-family:'Shippori Mincho',serif;font-size:clamp(1.4rem,3vw,2rem);color:var(--dark);margin-bottom:.8rem;}
.cta-section p{font-size:.9rem;color:rgba(0,0,0,.55);margin-bottom:2rem;}
.btn-dark{background:var(--dark);color:var(--gold-ll);padding:.9rem 2.2rem;font-family:'Noto Serif JP',serif;font-size:.88rem;font-weight:700;letter-spacing:.1em;border:none;cursor:pointer;text-decoration:none;display:inline-block;transition:all .3s;margin:.4rem;}
.btn-dark:hover{background:#333;transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.3);}
.btn-white{background:rgba(255,255,255,.9);color:var(--dark);padding:.9rem 2.2rem;font-family:'Noto Serif JP',serif;font-size:.88rem;letter-spacing:.08em;border:none;cursor:pointer;text-decoration:none;display:inline-block;transition:all .3s;margin:.4rem;}
.btn-white:hover{background:#fff;transform:translateY(-2px);}

/* FOOTER */
footer{background:#0D0D0D;padding:3rem 2rem;border-top:1px solid rgba(201,168,76,.15);}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem;}
.footer-brand{font-size:.82rem;color:rgba(255,255,255,.4);}
.footer-brand strong{display:block;color:var(--gold-ll);font-size:.95rem;margin-bottom:.3rem;}
.footer-links a{font-size:.85rem;color:rgba(255,255,255,.3);text-decoration:none;margin-left:1.2rem;transition:color .2s;}
.footer-links a:hover{color:var(--gold-ll);}
.footer-copy{max-width:1100px;margin:1.5rem auto 0;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.05);font-size:.7rem;color:rgba(255,255,255,.2);text-align:center;}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

@media(max-width:768px){
  nav{display:none;}
  .featured-banner{grid-template-columns:1fr;}
  .article-grid{grid-template-columns:1fr;}
  .footer-inner{flex-direction:column;}
}

/* ===== 高齢者対応 スマホ文字サイズ強化 ===== */
@media(max-width:768px){
  body{font-size:1.05rem;}
  .article-body p{font-size:1.05rem;line-height:2.1;}
  .article-body li{font-size:1rem;line-height:2.1;}
  .article-body h2{font-size:1.35rem;}
  .article-body h3{font-size:1.15rem;}
  .data-table{font-size:.92rem;}
  .data-table th{font-size:.88rem;padding:.8rem .6rem;}
  .data-table td{padding:.8rem .6rem;}
  .box p,.box li{font-size:1rem;}
  .nav-btn{font-size:.95rem;}
  .related-link{font-size:.95rem;}
  .footer-copy{font-size:.85rem;}
  .toc li{font-size:.95rem;}
}