:root{
  --c-main:#00C300;
  --c-dark:#1D2327;
  --c-bg:#F4F6F9;
  --c-card:#FFFFFF;
  --c-text:#2C3E50;
  --c-gray:#8395A7;
  --c-border:#E1E8ED;
  --c-highlight:#FFB822;
  --shadow-sm:0 2px 8px rgba(0,0,0,0.04);
  --shadow-lg:0 15px 35px rgba(0,0,0,0.1);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI", Meiryo, "Hiragino Kaku Gothic ProN", sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.7;font-size:16px}
a{text-decoration:none;color:inherit;transition:all 0.25s ease-out}
img{max-width:100%;height:auto;display:block;border-radius:12px}

/* Header */
.site-header{background:var(--c-card);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}
.header-inner{max-width:1200px;margin:0 auto;padding:16px 24px;display:flex;justify-content:space-between;align-items:center}
.site-logo{font-size:24px;font-weight:800;color:var(--c-main);display:flex;align-items:center;gap:12px;letter-spacing:-0.5px}
.site-logo::before{content:"";display:block;width:28px;height:28px;background:var(--c-main);border-radius:8px;box-shadow:0 2px 6px rgba(0,195,0,0.3)}
.main-nav{display:flex;gap:20px;overflow-x:auto}
.main-nav a{font-weight:600;font-size:15px;color:var(--c-gray);padding:8px 12px;border-radius:6px}
.main-nav a:hover, .main-nav a.active{background:rgba(0,195,0,0.08);color:var(--c-main)}

/* Hero - Emphasize PC Convenience */
.hero{background:linear-gradient(135deg, #1D2327 0%, #34495E 100%);color:#fff;padding:90px 24px;overflow:hidden}
.hero-inner{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:60px}
.hero-text{flex:1;min-width:340px}
.hero-tag{display:inline-block;padding:8px 20px;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.2);border-radius:30px;font-size:13px;font-weight:700;margin-bottom:24px;color:var(--c-highlight);letter-spacing:1px}
.hero-text h1{font-size:clamp(32px, 4.5vw, 48px);font-weight:800;line-height:1.2;margin:0 0 24px}
.hero-text p{font-size:18px;color:#BDC3C7;margin:0 0 40px;line-height:1.6}
.hero-action{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.btn-dl{display:inline-flex;align-items:center;justify-content:center;padding:16px 40px;background:var(--c-main);color:#fff;font-size:18px;font-weight:700;border-radius:8px;box-shadow:0 8px 20px rgba(0,195,0,0.3);border:none}
.btn-dl:hover{background:#00a800;transform:translateY(-3px);box-shadow:0 12px 25px rgba(0,195,0,0.4)}
.btn-works{display:inline-flex;align-items:center;justify-content:center;padding:16px 32px;background:transparent;color:#fff;font-size:16px;font-weight:600;border-radius:8px;border:2px solid #fff}
.btn-works:hover{background:rgba(255,255,255,0.1)}
.hero-visual{flex:1;min-width:340px;position:relative}
.hero-visual img{box-shadow:var(--shadow-lg);border:4px solid rgba(255,255,255,0.1);border-radius:16px}

/* Feature Highlights (Why PC is better) */
.pc-features{background:var(--c-card);padding:60px 24px;border-bottom:1px solid var(--c-border)}
.pc-features-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-around;flex-wrap:wrap;gap:40px;text-align:center}
.pcf-item{flex:1;min-width:200px}
.pcf-icon{font-size:40px;margin-bottom:16px;color:var(--c-main)}
.pcf-item h4{font-size:18px;font-weight:700;color:var(--c-dark);margin:0 0 12px}
.pcf-item p{font-size:14px;color:var(--c-gray);margin:0}

/* Announcements */
.announcement{max-width:1200px;margin:60px auto 0;padding:0 24px}
.ann-box{background:var(--c-card);border:1px solid var(--c-border);border-left:4px solid var(--c-main);border-radius:8px;padding:20px 24px;display:flex;align-items:center;gap:24px}
.ann-tag{background:#E8F5E9;color:#2E7D32;font-size:12px;font-weight:700;padding:4px 12px;border-radius:4px}
.ann-date{font-size:14px;color:var(--c-gray)}
.ann-title{font-size:15px;font-weight:600;color:var(--c-text);flex:1}

/* Main Container */
.container{max-width:1200px;margin:80px auto;padding:0 24px}
.sec-header{text-align:center;margin-bottom:50px}
.sec-header h2{font-size:32px;font-weight:800;color:var(--c-dark);margin:0 0 16px}
.sec-header p{font-size:16px;color:var(--c-gray)}

/* Categories */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-bottom:80px}
.cat-card{background:var(--c-card);border:1px solid var(--c-border);padding:32px 24px;border-radius:12px;transition:0.3s}
.cat-card:hover{box-shadow:var(--shadow-sm);border-color:var(--c-main);transform:translateY(-5px)}
.cat-badge{display:inline-block;font-size:12px;color:var(--c-main);font-weight:700;background:#F0FDF4;padding:4px 12px;border-radius:20px;margin-bottom:16px}
.cat-card h3{font-size:18px;font-weight:700;margin:0 0 12px;color:var(--c-dark)}
.cat-card p{font-size:14px;color:var(--c-gray);margin:0}

/* Article Area */
.article-section{background:var(--c-card);border:1px solid var(--c-border);border-radius:16px;padding:60px;display:flex;flex-wrap:wrap;gap:60px;align-items:center;margin-bottom:80px;box-shadow:var(--shadow-sm)}
.art-text{flex:1;min-width:320px}
.art-text h3{font-size:26px;font-weight:800;color:var(--c-dark);margin:0 0 24px;line-height:1.4}
.art-text p{font-size:16px;margin-bottom:20px;color:var(--c-text)}
.art-img{flex:1;min-width:320px}
.art-img img{box-shadow:var(--shadow-sm);border:1px solid var(--c-border)}

/* Columns */
.col-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px;margin-bottom:80px}
.col-card{background:var(--c-card);border-radius:12px;border:1px solid var(--c-border);overflow:hidden;transition:0.3s}
.col-card:hover{box-shadow:var(--shadow-lg);border-color:var(--c-gray)}
.col-card img{width:100%;height:190px;object-fit:cover;border-bottom:1px solid var(--c-border)}
.col-body{padding:24px}
.col-body h4{font-size:18px;font-weight:700;color:var(--c-dark);margin:0 0 12px}
.col-body p{font-size:14px;color:var(--c-gray);margin:0}

/* Links & Support (No external) */
.support-block{background:#E8F5E9;border:2px dashed #81C784;border-radius:16px;padding:60px 24px;text-align:center;margin-bottom:80px}
.support-block h2{font-size:26px;font-weight:800;color:#2E7D32;margin:0 0 16px}
.support-block p{font-size:16px;color:var(--c-text);margin:0 0 32px}
.sup-btns{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.s-btn{padding:14px 32px;background:var(--c-card);color:#2E7D32;font-weight:700;border-radius:8px;font-size:15px;box-shadow:var(--shadow-sm)}
.s-btn:hover{background:var(--c-main);color:#fff}

/* Footer */
.site-footer{background:var(--c-dark);color:#ECF0F1;padding:60px 24px 40px}
.footer-inner{max-width:1200px;margin:0 auto}
.foot-nav{display:flex;gap:32px;flex-wrap:wrap;margin-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1);padding-bottom:40px}
.foot-nav a{font-weight:600;font-size:15px}
.foot-nav a:hover{color:var(--c-main)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
.foot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-links a{color:#95A5A6;font-size:13px}
.foot-links a:hover{color:#fff}
.copy{color:#7F8C8D;font-size:13px}

@media(max-width:768px){
  .header-inner{flex-direction:column;align-items:flex-start}
  .main-nav{width:100%;padding-top:16px}
  .hero{padding:60px 24px}
  .hero-action{flex-direction:column;align-items:stretch}
  .btn-dl, .btn-works{width:100%;text-align:center}
  .article-section{padding:32px}
  .ann-box{flex-direction:column;align-items:flex-start;gap:12px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
img{height:auto}
.wrap,.news,.cols,.two,footer{content-visibility:auto;contain-intrinsic-size:auto 520px}