:root{font-family:Inter,"Noto Sans JP",system-ui,sans-serif;color:#17202c;background:#eef4f2}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#eef4f2}.login-shell{width:min(1180px,calc(100% - 48px));min-height:min(700px,calc(100vh - 80px));margin:40px auto;display:grid;grid-template-columns:1fr 1fr;border-radius:28px;overflow:hidden;background:#fff;box-shadow:0 28px 80px #233d4a20}.login-visual{min-width:0;background:#00173b;display:flex;align-items:stretch;justify-content:center;overflow:hidden}.login-visual>img{width:100%;height:100%;object-fit:cover;object-position:center;border-radius:0}.login-panel{display:grid;place-items:center;padding:64px;background:#fff}.login-panel form{width:min(430px,100%)}.login-panel h1{font-size:26px;line-height:1.4;margin:0 0 8px;color:#17202c}.lead{color:#697586;font-size:13px;margin:0 0 38px}.login-panel label{display:block;font-size:12px;font-weight:500;margin:20px 0;color:#4e5b6b}.login-panel input{display:block;width:100%;height:56px;margin-top:9px;border:1px solid #d8e0e5;border-radius:11px;padding:0 15px;outline:none;font-size:14px;background:#fff;color:#17202c;transition:border-color .15s,box-shadow .15s}.login-panel input:focus{border-color:#00aeca;box-shadow:0 0 0 4px #00bcd41a}.login-panel button{width:100%;height:56px;border:0;border-radius:11px;background:linear-gradient(135deg,#0877c7,#00bfce);color:#fff;font-size:16px;font-weight:700;margin-top:18px;box-shadow:0 12px 28px #008fc12b;cursor:pointer}.login-panel button:hover{filter:brightness(.97)}.login-panel button:focus-visible{outline:3px solid #8ce9f2;outline-offset:3px}.error{background:#fff0f1;border:1px solid #ffd0d4;color:#a72f3d;border-radius:9px;padding:11px;font-size:12px;margin-bottom:18px}.note{text-align:center;color:#83909e;font-size:10px;line-height:1.7;margin:22px 0 0}@media(max-width:900px){.login-shell{width:min(560px,calc(100% - 32px));min-height:auto;margin:24px auto;grid-template-columns:1fr}.login-visual{display:none}.login-panel{min-height:calc(100vh - 48px);padding:44px 30px}}@media(max-width:480px){.login-shell{width:100%;min-height:100vh;margin:0;border-radius:0;box-shadow:none}.login-panel{min-height:100vh;padding:32px 22px}.login-panel h1{font-size:23px}}