:root{--nav:#0b2b42;--blue:#2285d2;--ink:#172b3a;--muted:#718492;--line:#d9e3e9}*{box-sizing:border-box}body{margin:0;font-family:"Noto Sans JP",sans-serif;color:var(--ink)}main{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}.visual{background:linear-gradient(135deg,rgba(7,31,47,.97),rgba(16,86,124,.92)),radial-gradient(circle at 80% 20%,#2399d0,transparent 45%);color:#fff;padding:55px 65px;display:flex;flex-direction:column}.visual-inner{margin:auto 0}.brand-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,#3298e7,#18abc7);font:800 25px Inter;color:#fff;box-shadow:0 12px 28px rgba(0,0,0,.16)}.visual-inner>p:first-of-type{font:700 11px Inter;letter-spacing:.19em;color:#8fb9d0;margin:25px 0 13px}.visual h1{font-size:42px;line-height:1.35;margin:0}.line{display:block;width:45px;border-top:3px solid #2da1df;margin:28px 0}.lead{color:#b8d0de;line-height:1.9;font-size:13px}.visual footer{font-size:10px;color:#7098ad}.login{display:grid;place-items:center;padding:40px;background:#f7f9fa}.login form{width:min(390px,100%);background:#fff;border:1px solid var(--line);border-radius:16px;padding:35px 38px;box-shadow:0 18px 55px rgba(17,50,72,.1)}.brand{display:flex;align-items:center;gap:11px;margin-bottom:36px}.brand .brand-mark{width:38px;height:38px;border-radius:10px;font-size:20px}.brand b{font:800 18px Inter;display:block;letter-spacing:.08em}.brand small{display:block;font:700 8px Inter;letter-spacing:.13em;color:#8a9ba6}.eyebrow{font:700 9px Inter;color:#2483ca;letter-spacing:.16em;margin:0 0 5px}.login h2{font-size:23px;margin:0}.note{font-size:11px;color:var(--muted);margin:7px 0 25px}.login>form>label{display:block;margin-top:15px}.login>form>label span{font-size:11px;font-weight:700;display:block;margin-bottom:7px}.login input[type=text],.login input[type=password],.login>form>label input{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px;outline:0}.login input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(34,133,210,.1)}.options{display:flex;justify-content:space-between;align-items:center;margin:14px 0 20px;font-size:9px;color:#728592}.options label{display:flex;align-items:center;gap:5px}.options a{color:#297fbe}.login button{width:100%;border:0;border-radius:9px;background:linear-gradient(135deg,#1778c5,#2b94de);color:#fff;padding:12px;font-weight:700;box-shadow:0 8px 18px rgba(31,129,202,.2);cursor:pointer}.security{text-align:center;color:#94a2ab;font-size:8px;margin:20px 0 0}@media(max-width:760px){main{grid-template-columns:1fr}.visual{display:none}.login{min-height:100vh;padding:18px}.login form{padding:29px 24px}}