:root{color-scheme:light;--ink:#171a22;--muted:#737988;--line:#dde1e9;--soft:#f4f6f9;--brand:#315fe8;--danger:#b42318;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:#eef1f5;color:var(--ink)}button,input{font:inherit}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:32px}.auth-card{width:min(440px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 20px 55px rgba(24,34,55,.09)}.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.auth-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);display:grid;place-items:center;color:#fff;font-weight:800}.auth-brand b{display:block;font-size:17px}.auth-brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:2px}.auth-card h1{font-size:24px;margin:0 0 6px}.auth-card>p{color:var(--muted);font-size:14px;margin:0 0 24px;line-height:1.6}.auth-form{display:grid;gap:15px}.auth-form label{display:grid;gap:7px;color:#555c6a;font-size:13px;font-weight:650}.auth-form input{width:100%;border:1px solid #cfd5df;border-radius:9px;padding:11px 12px;outline:none;background:#fff;color:var(--ink)}.auth-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(49,95,232,.12)}.auth-form button,.auth-button{border:0;border-radius:9px;padding:11px 15px;background:var(--brand);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;text-align:center}.auth-form button:disabled{opacity:.55;cursor:wait}.auth-message{min-height:20px;margin:0!important;color:var(--danger)!important;font-size:13px!important}.auth-note{margin-top:18px!important;padding-top:16px;border-top:1px solid var(--line);font-size:12px!important}.admin-shell{min-height:100vh;padding:24px}.admin-page{max-width:980px;margin:auto}.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.admin-head h1{font-size:22px;margin:0}.admin-head a{color:var(--brand);text-decoration:none;font-weight:650}.admin-grid{display:grid;grid-template-columns:340px 1fr;gap:16px}.admin-panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.admin-panel h2{font-size:16px;margin:0 0 5px}.admin-panel>p{font-size:13px;color:var(--muted);margin:0 0 18px;line-height:1.55}.invite-result{margin-top:14px;background:var(--soft);border-radius:9px;padding:12px;display:grid;gap:8px}.invite-result input{width:100%;border:1px solid var(--line);border-radius:7px;padding:9px;background:#fff}.user-list{display:grid;gap:8px}.user-row{display:grid;grid-template-columns:1fr auto;align-items:center;border:1px solid var(--line);border-radius:9px;padding:11px 12px}.user-row b,.user-row small{display:block}.user-row small{color:var(--muted);margin-top:3px}.user-row button{border:0;background:transparent;color:var(--danger);cursor:pointer}.empty{color:var(--muted);font-size:13px}@media(max-width:720px){.admin-grid{grid-template-columns:1fr}.admin-shell{padding:14px}.auth-shell{padding:16px}}