:root{
  --line-brand:#06C755;
  --line-hover:#05B34C;
  --text-dark:#111111;
  --text-gray:#555555;
  --bg-main:#FFFFFF;
  --bg-sub:#F5F6F6;
  --border-light:#E5E5E5;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Meiryo", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;background-color:var(--bg-main);color:var(--text-dark);line-height:1.6;font-size:16px}
a{text-decoration:none;color:inherit;transition:0.2s}
ul,li{list-style:none}
img{max-width:100%;height:auto;display:block}

/* Header */
.header{background:var(--bg-main);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:100}
.header-inner{max-width:1100px;margin:0 auto;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}
.logo{font-size:24px;font-weight:900;color:var(--line-brand);display:flex;align-items:center;letter-spacing:-0.5px}
.main-nav{display:flex;gap:20px;overflow-x:auto}
.main-nav a{font-size:14px;font-weight:bold;color:var(--text-dark);padding:8px 0;white-space:nowrap}
.main-nav a:hover, .main-nav a.active{color:var(--line-brand)}
.header-btn{background:var(--line-brand);color:#fff;padding:8px 20px;border-radius:20px;font-size:13px;font-weight:bold}
.header-btn:hover{background:var(--line-hover);color:#fff}

/* Hero (SEO Optimized for PC Download) */
.hero{background:var(--bg-sub);padding:60px 20px;border-bottom:1px solid var(--border-light)}
.hero-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:40px}
.hero-content{flex:1}
.hero-badge{display:inline-block;background:var(--text-dark);color:#fff;padding:6px 12px;border-radius:4px;font-size:12px;font-weight:bold;margin-bottom:20px}
.hero-title{font-size:36px;font-weight:900;line-height:1.3;margin-bottom:20px;color:var(--text-dark)}
.hero-desc{font-size:16px;color:var(--text-gray);margin-bottom:30px;line-height:1.8}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--line-brand);color:#fff;padding:18px 40px;border-radius:30px;font-size:18px;font-weight:bold;box-shadow:0 4px 10px rgba(6,199,85,0.3)}
.btn-primary:hover{background:var(--line-hover);transform:translateY(-2px);box-shadow:0 6px 15px rgba(6,199,85,0.4);color:#fff}
.hero-visual{flex:1}
.hero-visual img{border-radius:12px;box-shadow:0 10px 25px rgba(0,0,0,0.1)}

/* Announcement */
.announcement{max-width:1100px;margin:30px auto;padding:0 20px}
.ann-box{background:var(--bg-main);border:1px solid var(--line-brand);border-left:4px solid var(--line-brand);padding:16px 20px;border-radius:4px;display:flex;gap:16px;align-items:center}
.ann-date{font-weight:bold;color:var(--line-brand);font-size:14px}
.ann-text{font-size:14px;color:var(--text-dark)}

/* Content Container */
.container{max-width:1100px;margin:60px auto;padding:0 20px}
.section-title{font-size:26px;font-weight:900;margin-bottom:30px;text-align:center;position:relative;padding-bottom:15px}
.section-title::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:40px;height:4px;background:var(--line-brand);border-radius:2px}

/* Grid Categories */
.category-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(240px, 1fr));gap:20px;margin-bottom:80px}
.cat-item{display:block;background:var(--bg-main);border:1px solid var(--border-light);padding:24px;border-radius:8px;transition:0.3s;box-shadow:0 2px 5px rgba(0,0,0,0.02)}
.cat-item:hover{border-color:var(--line-brand);box-shadow:0 5px 15px rgba(0,0,0,0.05);transform:translateY(-2px)}
.cat-icon{font-size:12px;font-weight:bold;color:var(--line-brand);margin-bottom:12px;background:rgba(6,199,85,0.1);display:inline-block;padding:4px 8px;border-radius:4px}
.cat-item h3{font-size:18px;font-weight:bold;margin-bottom:10px}
.cat-item p{font-size:13px;color:var(--text-gray);line-height:1.5}

/* Feature SEO Article */
.seo-article{display:flex;align-items:center;gap:40px;background:var(--bg-sub);padding:40px;border-radius:12px;margin-bottom:80px}
.seo-text{flex:1}
.seo-text h2{font-size:24px;font-weight:bold;margin-bottom:20px;color:var(--text-dark)}
.seo-text p{margin-bottom:16px;color:var(--text-gray)}
.seo-img{flex:1}
.seo-img img{border-radius:8px;border:1px solid var(--border-light)}

/* Columns */
.col-wrapper{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px;margin-bottom:80px}
.col-card{border:1px solid var(--border-light);border-radius:8px;overflow:hidden;background:var(--bg-main)}
.col-card img{width:100%;height:180px;object-fit:cover}
.col-body{padding:20px}
.col-body h4{font-size:16px;font-weight:bold;margin-bottom:10px}
.col-body p{font-size:13px;color:var(--text-gray)}

/* Support Area */
.support-area{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:60px}
.support-box{background:var(--bg-main);border:1px solid var(--border-light);padding:30px;border-radius:8px;text-align:center}
.support-box h3{font-size:20px;font-weight:bold;margin-bottom:15px}
.support-box p{font-size:14px;color:var(--text-gray);margin-bottom:20px}
.btn-secondary{display:inline-block;background:var(--text-dark);color:#fff;padding:12px 30px;border-radius:30px;font-size:14px;font-weight:bold}
.btn-secondary:hover{background:var(--text-gray);color:#fff}

/* Footer */
.footer{background:var(--bg-sub);border-top:1px solid var(--border-light);padding:50px 20px;text-align:center}
.foot-nav{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.foot-nav a{font-size:14px;font-weight:bold;color:var(--text-dark)}
.foot-links{display:flex;justify-content:center;gap:20px;margin-bottom:20px;flex-wrap:wrap}
.foot-links a{font-size:12px;color:var(--text-gray)}
.copyright{font-size:12px;color:var(--text-gray)}

@media(max-width:768px){
  .hero-inner, .seo-article, .col-wrapper, .support-area{flex-direction:column;grid-template-columns:1fr}
  .hero{padding:40px 20px}
  .hero-title{font-size:28px}
  .main-nav{display:none} /* Hidden on very small screens for simplicity in LP */
}

img{height:auto}
.wrap,.news,.cols,.two,footer{content-visibility:auto;contain-intrinsic-size:auto 520px}