:root{--main:#0f244f;--main-dark:#081a3a;--main-light:#44527f;--accent:#f39c2c;--accent-dark:#d9820f;--bg:#f6f8fb;--ink:#22262e;--sub:#5a6577;--line:#dde3ec;--card:#fff}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Meiryo",sans-serif;color:var(--ink);background:var(--bg);line-height:1.9;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--main)}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;text-align:center;transition:.2s;border:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(243,156,44,.4)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-line{background:#06c755;color:#fff}
.btn-line:hover{background:#05a648}
header{position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);z-index:100}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;max-width:960px;margin:0 auto;padding:0 20px}
.logo{display:flex;align-items:center;text-decoration:none}.logo img{height:34px;width:auto}
@media(max-width:480px){.logo img{height:28px}}
.nav ul{display:flex;gap:20px;list-style:none}
.nav a{text-decoration:none;font-size:14px;color:var(--ink);font-weight:600}
.nav a:hover{color:var(--main)}
.nav-cta{background:var(--accent);color:#fff!important;padding:8px 16px;border-radius:999px}
@media(max-width:720px){.nav ul li:not(.nav-cta-li){display:none}}
.col-hero{background:linear-gradient(160deg,#16305f 0%,#0f244f 55%,#081a3a 100%);color:#fff;text-align:center;padding:56px 0 44px}
.col-hero h1{font-size:clamp(26px,5vw,34px);margin-bottom:10px}
.col-hero p{opacity:.9;font-size:15px;max-width:560px;margin:0 auto}
.col-list-sec{padding:44px 0 64px}
.col-list{display:grid;gap:18px}
.col-card{display:block;background:#fff;border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:12px;padding:22px 24px;text-decoration:none;color:var(--ink);transition:.15s}
.col-card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(15,36,79,.08)}
.col-card-no{display:inline-block;background:var(--main);color:#fff;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;margin-right:8px}
.col-card-date{color:var(--sub);font-size:12px}
.col-card h2{font-size:18px;color:var(--main-dark);margin:10px 0 8px;line-height:1.5}
.col-card p{font-size:14px;color:var(--sub)}
.col-card-more{display:inline-block;margin-top:10px;color:var(--accent-dark);font-weight:700;font-size:13px}
.col-main{padding:28px 0 64px}
.crumb{font-size:12.5px;color:var(--sub);margin-bottom:18px}
.crumb a{color:var(--sub)}
.col-article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:clamp(24px,5vw,44px)}
.col-meta{color:var(--accent-dark);font-weight:700;font-size:13px;margin-bottom:8px}
.col-article h1{font-size:clamp(22px,4.2vw,29px);line-height:1.5;color:var(--main-dark);margin-bottom:22px;padding-bottom:18px;border-bottom:2px solid var(--line)}
.col-article h2{font-size:clamp(18px,3vw,21px);color:var(--main);margin:32px 0 12px;padding-left:12px;border-left:5px solid var(--accent)}
.col-article p{margin:0 0 16px;font-size:15.5px}
.col-article strong{color:var(--main-dark)}
.col-cta{background:linear-gradient(160deg,#16305f,#0f244f);color:#fff;border-radius:14px;padding:28px 26px;margin:36px 0 8px;text-align:center}
.col-cta h3{font-size:18px;margin-bottom:10px}
.col-cta p{color:#e8ecf3;font-size:14px;margin-bottom:18px}
.col-cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.col-back{margin-top:24px;font-size:14px;font-weight:700}
footer{background:#081a3a;color:rgba(255,255,255,.85);padding:36px 0;font-size:13px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:24px;max-width:960px;margin-left:auto;margin-right:auto;padding:0 20px}
.foot-logo{height:38px;width:auto;margin-bottom:10px}
.foot-grid h4{color:#ffc861;font-size:13px;margin-bottom:8px}
.foot-nav{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:center;max-width:960px;margin:6px auto 0;padding:18px 20px;border-top:1px solid rgba(255,255,255,.15)}
.foot-nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:13px;font-weight:600}
.foot-nav a:hover{color:#ffc861}
.copy{text-align:center;opacity:.7;max-width:960px;margin:0 auto;padding:0 20px}