:root{--ink:#172033;--muted:#6f7a8c;--line:#e3e8f0;--bg:#f4f7fb;--panel:#fff;--navy:#142a4a;--blue:#2c6bed;--green:#16866b;--red:#bd3b52;--shadow:0 18px 55px rgba(31,50,81,.08)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;line-height:1.6}.login-page{min-height:100vh;background:radial-gradient(circle at 10% 10%,#dfeaff 0,transparent 36%),radial-gradient(circle at 90% 90%,#d9f3ea 0,transparent 35%),#f7f9fc}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(440px,100%);padding:42px;border:1px solid rgba(255,255,255,.8);border-radius:28px;background:rgba(255,255,255,.9);box-shadow:0 28px 100px rgba(28,54,92,.16);backdrop-filter:blur(16px)}.brand-mark{display:grid;place-items:center;width:54px;height:54px;border-radius:16px;color:#fff;background:linear-gradient(135deg,var(--navy),var(--blue));font-weight:900;letter-spacing:-.05em;box-shadow:0 12px 30px rgba(44,107,237,.25)}.brand-mark.small{display:inline-grid;width:36px;height:36px;border-radius:11px;margin-right:10px;font-size:13px}.eyebrow{margin:18px 0 4px;color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.16em}.login-card h1,.hero h1{margin:0;font-size:clamp(30px,5vw,46px);letter-spacing:-.045em;line-height:1.15}.lead{color:var(--muted);margin:12px 0 28px}.stack{display:grid;gap:16px}label{display:grid;gap:7px;color:#3f4b5e;font-size:13px;font-weight:700}input,select,button{font:inherit}input,select{width:100%;padding:13px 14px;border:1px solid #cfd7e4;border-radius:12px;background:#fff;color:var(--ink);outline:none}input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(44,107,237,.1)}button{border:0;border-radius:12px;padding:14px 18px;color:#fff;background:linear-gradient(135deg,var(--navy),var(--blue));font-weight:900;cursor:pointer;box-shadow:0 10px 24px rgba(44,107,237,.2)}button:hover{filter:brightness(1.05)}.topbar{height:68px;padding:0 max(20px,calc((100vw - 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