:root{
  --b-green:#06C755;
  --b-green-soft:#E8F9EE;
  --b-blue:#4A90E2;
  --b-dark:#2C3E50;
  --b-text:#34495E;
  --b-muted:#7F8C8D;
  --b-bg:#F9FBFC;
  --b-card:#FFFFFF;
  --b-border:#E5E8E8;
  --b-shadow:0 8px 24px rgba(0,0,0,0.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;background:var(--b-bg);color:var(--b-text);line-height:1.8;font-size:16px}
a{text-decoration:none;color:inherit;transition:0.2s}
img{max-width:100%;height:auto;display:block;border-radius:12px}

/* Accessibility & Beginner Friendly Styles */
.highlight-text{background:linear-gradient(transparent 60%, #fff3cd 60%);font-weight:700}
.big-number{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--b-green);color:#fff;border-radius:50%;font-size:20px;font-weight:900;margin-bottom:16px}

/* Header */
.site-header{background:var(--b-card);border-bottom:2px solid var(--b-green);position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(0,0,0,0.05)}
.header-inner{max-width:1100px;margin:0 auto;padding:12px 20px;display:flex;justify-content:space-between;align-items:center}
.site-logo{font-size:22px;font-weight:900;color:var(--b-green);display:flex;align-items:center;gap:10px}
.site-logo::before{content:"";display:block;width:24px;height:24px;background:var(--b-green);border-radius:6px}
.main-nav{display:flex;gap:12px;overflow-x:auto}
.main-nav a{font-size:15px;font-weight:700;padding:10px 16px;border-radius:8px;color:var(--b-text);background:var(--b-bg)}
.main-nav a:hover, .main-nav a.active{background:var(--b-green-soft);color:var(--b-green)}

/* Visual Hero */
.hero{background:var(--b-card);padding:60px 20px;text-align:center;border-bottom:1px solid var(--b-border)}
.hero-inner{max-width:900px;margin:0 auto}
.hero-badge{display:inline-block;background:var(--b-green);color:#fff;font-size:14px;font-weight:800;padding:8px 20px;border-radius:30px;margin-bottom:24px;letter-spacing:1px}
.hero h1{font-size:clamp(26px, 4vw, 36px);margin:0 0 20px;color:var(--b-dark);line-height:1.4;font-weight:900}
.hero p{font-size:18px;color:var(--b-muted);margin:0 0 40px}
.hero-visual{margin:0 auto 40px;max-width:700px;background:var(--b-bg);padding:20px;border-radius:24px;border:2px dashed var(--b-border)}
.hero-visual img{box-shadow:var(--b-shadow)}

/* Giant Buttons */
.btn-group{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.btn-giant{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;width:280px;padding:24px 20px;border-radius:16px;text-align:center;box-shadow:var(--b-shadow);border:3px solid transparent}
.btn-giant.primary{background:var(--b-green);color:#fff}
.btn-giant.primary:hover{background:#05b34c;transform:translateY(-4px)}
.btn-giant.secondary{background:var(--b-card);color:var(--b-dark);border-color:var(--b-border)}
.btn-giant.secondary:hover{border-color:var(--b-dark);transform:translateY(-4px)}
.btn-giant span:first-child{font-size:22px;font-weight:900;margin-bottom:8px}
.btn-giant span:last-child{font-size:14px;opacity:0.9}

/* Container */
.container{max-width:1100px;margin:60px auto;padding:0 20px}
.sec-title{text-align:center;margin-bottom:40px}
.sec-title h2{font-size:28px;font-weight:900;color:var(--b-dark);margin:0 0 16px;background:var(--b-green-soft);display:inline-block;padding:8px 24px;border-radius:30px}
.sec-title p{font-size:16px;color:var(--b-text);margin:0}

/* Step-by-Step Grid (Visual Categories) */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:60px}
.cat-card{background:var(--b-card);border:2px solid var(--b-border);padding:32px 24px;border-radius:20px;text-align:center;transition:0.3s}
.cat-card:hover{border-color:var(--b-green);box-shadow:var(--b-shadow);transform:translateY(-4px)}
.cat-card .icon-placeholder{width:64px;height:64px;background:var(--b-bg);border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--b-green);border:2px solid var(--b-green-soft)}
.cat-card h3{font-size:20px;margin:0 0 12px;color:var(--b-dark)}
.cat-card p{font-size:15px;color:var(--b-muted);margin:0}

/* Article - Beginner Layout */
.article-box{background:var(--b-card);border-radius:24px;padding:48px;display:flex;flex-wrap:wrap;gap:48px;align-items:center;margin-bottom:60px;box-shadow:var(--b-shadow);border:4px solid var(--b-bg)}
.article-text{flex:1;min-width:300px}
.article-text h3{font-size:24px;margin:0 0 24px;color:var(--b-dark);border-left:6px solid var(--b-green);padding-left:16px}
.article-text p{font-size:16px;margin-bottom:20px}
.article-img{flex:1;min-width:300px}
.article-img img{border:1px solid var(--b-border);padding:8px;background:#fff}

/* Big News Area */
.news-area{max-width:900px;margin:0 auto 60px}
.news-list{background:var(--b-card);border-radius:16px;border:2px solid var(--b-border);overflow:hidden}
.news-item{display:flex;padding:24px;border-bottom:2px solid var(--b-bg);align-items:center;gap:20px}
.news-item:last-child{border-bottom:none}
.news-date{font-size:15px;color:var(--b-muted);font-weight:600;min-width:100px}
.news-badge{font-size:13px;font-weight:800;padding:6px 12px;border-radius:8px;background:var(--b-blue);color:#fff}
.news-badge.important{background:#E74C3C}
.news-title{font-size:16px;font-weight:700;color:var(--b-text);flex:1}

/* Columns */
.col-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px;margin-bottom:60px}
.col-card{background:var(--b-card);border-radius:20px;overflow:hidden;border:2px solid var(--b-border);transition:0.3s}
.col-card:hover{box-shadow:var(--b-shadow);border-color:var(--b-green)}
.col-card img{width:100%;height:180px;object-fit:cover;border-bottom:2px solid var(--b-border)}
.col-body{padding:24px}
.col-body h4{font-size:18px;font-weight:800;margin:0 0 12px;color:var(--b-dark)}
.col-body p{font-size:15px;color:var(--b-muted);margin:0}

/* Friendly Support Area */
.support-area{background:var(--b-green-soft);border:2px dashed var(--b-green);border-radius:24px;padding:48px 24px;text-align:center;margin-bottom:60px}
.support-area h2{font-size:24px;color:var(--b-dark);margin:0 0 16px;font-weight:900}
.support-area p{font-size:16px;color:var(--b-text);margin:0 0 32px}
.support-btn{display:inline-block;padding:16px 32px;background:var(--b-card);color:var(--b-dark);border:2px solid var(--b-dark);border-radius:30px;font-size:18px;font-weight:800;box-shadow:4px 4px 0 var(--b-dark)}
.support-btn:hover{transform:translate(2px, 2px);box-shadow:2px 2px 0 var(--b-dark)}

/* Footer */
.site-footer{background:var(--b-dark);color:#ECF0F1;padding:60px 20px 30px;text-align:center}
.footer-nav{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-bottom:30px}
.footer-nav a{font-weight:700;padding:8px 16px;border-radius:8px;background:rgba(255,255,255,0.1)}
.footer-nav a:hover{background:var(--b-green);color:#fff}
.footer-links{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:24px;font-size:14px;color:#BDC3C7}
.footer-links a:hover{color:#fff;text-decoration:underline}
.copy{font-size:13px;opacity:0.7}
@media(max-width:768px){
  .header-inner{flex-direction:column;align-items:flex-start}
  .main-nav{width:100%;padding-top:12px}
  .hero{padding:40px 20px}
  .btn-giant{width:100%}
  .news-item{flex-direction:column;align-items:flex-start;gap:12px}
}
img{height:auto}
.wrap,.news,.cols,.two,footer{content-visibility:auto;contain-intrinsic-size:auto 520px}