:root {
    --brand-navy: #152940;
    --brand-navy-light: #2c425c;
    --brand-green: #00B900;
    --brand-green-hover: #009900;
    --text-primary: #222222;
    --text-secondary: #555555;
    --bg-white: #ffffff;
    --bg-light-gray: #f8f9fa;
    --border-gray: #e4e7ea;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Noto Sans JP", "Helvetica Neue", "Segoe UI", sans-serif; }
body { background: var(--bg-white); color: var(--text-primary); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* 1. Header Navigation (Corporate Trust Style) */
header { background: var(--bg-white); border-bottom: 1px solid var(--border-gray); position: sticky; top: 0; z-index: 1000; box-shadow: 0 4px 12px rgba(0,0,0,0.03); }
.header-top { background: var(--brand-navy); color: #a9b7c6; font-size: 12px; padding: 6px 20px; text-align: right; }
.header-top a { color: #fff; margin-left: 15px; transition: 0.2s; }
.header-top a:hover { color: var(--brand-green); }
.header-main { max-width: 1200px; margin: 0 auto; height: 75px; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; }
.logo-container { display: flex; align-items: center; gap: 12px; font-size: 26px; font-weight: 900; color: var(--brand-navy); letter-spacing: -0.5px; }
.logo-container span { font-size: 13px; font-weight: 500; color: var(--text-secondary); border-left: 1px solid #ccc; padding-left: 12px; letter-spacing: 0; }
.nav-menu { display: flex; gap: 30px; align-items: center; }
.nav-menu a { font-size: 15px; font-weight: bold; color: var(--brand-navy); transition: color 0.2s; }
.nav-menu a:hover { color: var(--brand-green); }
.header-cta { background: var(--brand-green); color: var(--bg-white) !important; padding: 10px 24px; border-radius: 4px; box-shadow: 0 4px 6px rgba(0,185,0,0.2); }
.header-cta:hover { background: var(--brand-green-hover); box-shadow: 0 4px 12px rgba(0,185,0,0.3); }

/* 2. Main Visual (Trust & Corporate Feel) */
.hero-section { background: linear-gradient(135deg, #152940 0%, #2c425c 100%); color: var(--bg-white); padding: 80px 20px; border-bottom: 4px solid var(--brand-green); }
.hero-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 60px; }
.hero-text { flex: 1; }
.trust-badge { display: inline-block; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.3); padding: 6px 16px; border-radius: 30px; font-size: 13px; font-weight: bold; margin-bottom: 25px; letter-spacing: 1px; }
.hero-text h2 { font-size: 38px; line-height: 1.4; margin-bottom: 20px; font-weight: 800; }
.hero-text p { font-size: 16px; color: #cbd5e1; margin-bottom: 40px; line-height: 1.8; }
.hero-actions { display: flex; gap: 15px; }
.btn-primary { background: var(--brand-green); color: #fff; padding: 16px 36px; border-radius: 4px; font-size: 16px; font-weight: bold; transition: 0.3s; text-align: center; }
.btn-primary:hover { background: var(--brand-green-hover); transform: translateY(-2px); }
.btn-outline-white { border: 2px solid #fff; color: #fff; padding: 14px 36px; border-radius: 4px; font-size: 16px; font-weight: bold; transition: 0.3s; text-align: center; }
.btn-outline-white:hover { background: rgba(255,255,255,0.1); }
.hero-image { flex: 1; border-radius: 8px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.4); }

/* 3. Category Navigation */
.section { max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 28px; color: var(--brand-navy); font-weight: 800; margin-bottom: 15px; }
.section-header p { font-size: 15px; color: var(--text-secondary); }
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.cat-card { background: var(--bg-white); border: 1px solid var(--border-gray); padding: 30px 24px; border-radius: 6px; transition: 0.3s; border-top: 3px solid transparent; }
.cat-card:hover { border-top-color: var(--brand-green); box-shadow: 0 10px 20px rgba(0,0,0,0.06); transform: translateY(-4px); }
.cat-card h3 { font-size: 18px; color: var(--brand-navy); margin-bottom: 12px; font-weight: bold; }
.cat-card p { font-size: 14px; color: var(--text-secondary); }

/* 4. Announcement Area */
.news-board { background: var(--bg-white); border: 1px solid var(--border-gray); border-radius: 6px; padding: 40px; max-width: 1000px; margin: 0 auto 80px; box-shadow: 0 4px 15px rgba(0,0,0,0.02); }
.news-title-row { display: flex; justify-content: space-between; align-items: flex-end; border-bottom: 2px solid var(--brand-navy); padding-bottom: 15px; margin-bottom: 20px; }
.news-title-row h2 { font-size: 22px; color: var(--brand-navy); }
.news-title-row a { font-size: 14px; color: var(--brand-green); font-weight: bold; }
.news-list { display: flex; flex-direction: column; }
.news-item { display: flex; align-items: center; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--bg-light-gray); }
.news-item:last-child { border-bottom: none; padding-bottom: 0; }
.n-date { font-size: 14px; color: var(--text-secondary); font-family: Tahoma, sans-serif; width: 100px; }
.n-badge { font-size: 12px; padding: 4px 10px; border-radius: 2px; font-weight: bold; }
.b-release { background: #E6F8ED; color: #008f00; border: 1px solid #00B900; }
.b-security { background: #FDE8E8; color: #c0392b; border: 1px solid #e74c3c; }
.n-text { font-size: 15px; font-weight: 500; transition: color 0.2s; }
.news-item:hover .n-text { color: var(--brand-green); text-decoration: underline; }

/* 5. Features / Columns Area */
.feature-bg { background: var(--bg-light-gray); padding: 80px 0; border-top: 1px solid var(--border-gray); margin-bottom: 80px; }
.col-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.col-card { background: var(--bg-white); border-radius: 6px; overflow: hidden; border: 1px solid var(--border-gray); transition: 0.3s; }
.col-card:hover { box-shadow: 0 12px 24px rgba(0,0,0,0.08); }
.col-img { height: 200px; }
.col-img img { width: 100%; height: 100%; object-fit: cover; }
.col-body { padding: 25px; }
.col-body h4 { font-size: 18px; margin-bottom: 12px; color: var(--brand-navy); font-weight: bold; }
.col-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* 6. Help Center & 7. Official Account */
.support-container { display: flex; gap: 30px; flex-wrap: wrap; margin-bottom: 80px; }
.support-box { flex: 1; min-width: 320px; padding: 45px; text-align: center; border-radius: 6px; border: 1px solid var(--border-gray); }
.box-help { background: #F4F7FA; }
.box-sns { background: var(--bg-white); }
.support-box h3 { font-size: 22px; color: var(--brand-navy); margin-bottom: 15px; font-weight: 800; }
.support-box p { font-size: 14px; color: var(--text-secondary); margin-bottom: 25px; }
.btn-support { display: inline-block; background: var(--brand-navy); color: #fff; padding: 12px 32px; border-radius: 4px; font-weight: bold; font-size: 14px; transition: 0.2s; }
.btn-support:hover { background: var(--brand-navy-light); }
.sns-row { display: flex; justify-content: center; gap: 12px; }
.sns-tag { padding: 10px 20px; border: 1px solid var(--border-gray); border-radius: 4px; font-size: 13px; font-weight: bold; color: var(--text-secondary); transition: 0.2s; background: var(--bg-light-gray); }
.sns-tag:hover { background: var(--border-gray); color: var(--brand-navy); }

/* 8. Footer */
footer { background: var(--brand-navy); color: #94a3b8; padding: 60px 20px 20px; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 20px; letter-spacing: 1px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 13px; transition: color 0.2s; }
.footer-col ul li a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid #1e3a5f; padding-top: 25px; text-align: center; font-size: 12px; }

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