body{font-family:'Noto Serif JP',serif;color:#333;margin:0;padding:0;line-height:1.8;background-color:#fffaf0}main{max-width:1000px;margin:0 auto;padding:20px}header{background-color:sienna;color:#fff;padding:0}.header-inner{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 20px}.site-title{margin:0;font-size:24px}nav a{color:#fff;text-decoration:none;margin-left:20px;padding:5px 10px}nav a.current{border-bottom:2px solid #ff4500}.company-section{max-width:450px;margin:40px auto;padding:0;position:relative;box-shadow:0 4px 15px rgba(0,0,0,.1);overflow:hidden;min-height:600px}.company-section:before{content:"";display:block;position:absolute;top:0;left:0;width:100%;height:120px;background-color:#8b0000;border-bottom-left-radius:60px;border-bottom-right-radius:60px;z-index:1}.company-section:after{content:"";display:block;position:absolute;bottom:0;left:0;width:100%;height:80%;background-color:#f0fff0;border-top-left-radius:80px;border-top-right-radius:0;z-index:1}.section-header{position:relative;color:#fff;text-align:center;padding-top:20px;z-index:5}.section-header h2{margin:0;font-size:30px;letter-spacing:.1em}.section-header p{margin:5px 0 30px;font-size:14px}.company-content-area{position:relative;padding:20px 30px;z-index:5}.info-block{margin-bottom:30px;padding:10px 0;text-align:center}.info-block h3{color:#8b0000;font-size:18px;margin-bottom:5px}.detail-list{text-align:left;max-width:350px;margin:0 auto}.detail-list dt{font-weight:700;color:sienna;border-bottom:1px dotted #ccc;padding-top:15px;margin-top:10px;font-size:15px}.detail-list dd{margin:5px 0 10px;padding-left:10px;font-size:16px}.btn-area{text-align:center;padding-bottom:30px;position:relative;z-index:5}.home-btn{display:inline-block;padding:10px 20px;background-color:sienna;color:#333;border:1px solid #ccc;text-decoration:none;font-size:14px;font-weight:700;transition:background-color .3s}.home-btn:hover{background-color:#f0f0f0}/*footer{text-align:center;padding:20px;background-color:#333;color:#ccc;font-size:14px;margin-top:40px}