:root{--navy:#12334f;--blue:#176ca4;--light:#eef6fb;--line:#c9d8e3;--text:#243746;--accent:#e87924}
*{box-sizing:border-box} body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Yu Gothic',Meiryo,sans-serif;color:var(--text);background:#f5f7f9;line-height:1.75}
a{color:var(--blue)} .wrap{max-width:1080px;margin:auto;padding:0 22px}.topbar{background:var(--navy);color:#fff;padding:18px 0}.topbar a{color:#fff;text-decoration:none}.brand{font-size:22px;font-weight:700}.hero{background:linear-gradient(135deg,#eaf5fb,#fff);padding:54px 0;border-bottom:1px solid var(--line)}h1{font-size:34px;color:var(--navy);line-height:1.35;margin:0 0 14px}h2{color:var(--navy);margin-top:38px}.lead{font-size:18px}.panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px;margin:24px 0;box-shadow:0 4px 16px rgba(18,51,79,.06)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:20px}.card h3{margin-top:0;color:var(--navy);font-size:18px}.btn{display:inline-block;background:var(--blue);color:white!important;text-decoration:none;padding:11px 22px;border-radius:6px;border:0;font-weight:700;cursor:pointer}.btn.alt{background:var(--accent)}.notice{background:#fff8e8;border-left:5px solid #efaa28;padding:15px 18px}.footer{margin-top:45px;background:#263b4b;color:#fff;padding:24px 0;font-size:13px}.formbox{max-width:520px;margin:45px auto}.formbox label{display:block;font-weight:700;margin:12px 0 5px}.formbox input{width:100%;font-size:18px;padding:12px;border:1px solid #9db2c2;border-radius:5px}.error{color:#b00020;background:#fff0f2;padding:10px}.portal-head{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap}.demo-frame{width:100%;height:82vh;border:1px solid var(--line);background:#fff}.small{font-size:13px;color:#5d7181}@media(max-width:600px){h1{font-size:27px}.hero{padding:36px 0}}