:root{--bg:#f4f6f5;--surface:#fff;--surface-2:#f8faf9;--line:#d9dfdc;--text:#17231f;--muted:#66736d;--accent:#1f6f7a;--accent-dark:#195b64;--danger:#a33d45;--radius:4px;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color-scheme:light}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);font-size:14px}button,input,select{font:inherit;letter-spacing:0}button{cursor:pointer}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;text-decoration:none}.brand-mark{display:grid;place-items:center;width:30px;height:30px;border:1px solid #a7c8ca;border-radius:var(--radius);background:#dbeff0;color:var(--accent)}
.login-screen{min-height:100dvh;display:grid;place-items:center;padding:24px}.login-panel{width:min(380px,100%);padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 22px 60px rgba(31,62,53,.1)}.login-panel h1{margin:28px 0 6px;font-size:24px}.login-panel p{margin:0 0 22px;color:var(--muted)}.login-field{display:grid;gap:7px;margin:0 0 14px}.login-field label{font-size:12px;font-weight:700;color:#364740}
label{display:grid;gap:7px;margin:0 0 14px;font-size:12px;font-weight:700;color:#364740}input,select{width:100%;height:38px;padding:0 10px;border:1px solid #cbd4d0;border-radius:var(--radius);background:#fff;color:var(--text);outline:0}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 2px rgba(31,111,122,.12)}.back-link{display:block;margin-top:18px;color:var(--muted);text-align:center;text-decoration:none}.form-message{min-height:20px;margin-top:10px;color:var(--danger);font-size:12px}
.button{min-height:36px;padding:0 14px;border:1px solid #c8d1cd;border-radius:var(--radius);background:#fff;color:var(--text);font-weight:700;white-space:nowrap}.button:hover{background:#f1f5f3}.button:active{transform:translateY(1px)}.button:disabled{cursor:not-allowed;opacity:.5}.button.primary{border-color:var(--accent);background:var(--accent);color:#fff}.button.primary:hover{background:var(--accent-dark)}.login-panel .button{width:100%;margin-top:4px}
.admin-shell{min-height:100dvh;display:grid;grid-template-columns:208px 1fr}.sidebar{position:sticky;top:0;height:100dvh;padding:16px 12px;border-right:1px solid var(--line);background:#f8faf9}.sidebar-brand{height:44px;padding:0 8px;margin-bottom:20px}.sidebar nav{display:grid;gap:3px}.nav-item{width:100%;height:38px;padding:0 12px;border:0;border-radius:var(--radius);background:transparent;color:#405149;text-align:left;font-weight:700}.nav-item:hover,.nav-item.active{background:#e4eeee;color:#144f57}.nav-item.signout{position:absolute;left:12px;bottom:16px;width:184px;color:var(--danger)}
.workspace{min-width:0;padding:0 24px 32px}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.topbar h1{margin:0;font-size:20px}.topbar p{margin:4px 0 0;color:var(--muted);font-size:12px}.top-actions{display:flex;align-items:center;gap:8px}.top-actions input{width:250px}.view{display:none;padding-top:22px}.view.active{display:block}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.metric{min-height:104px;padding:18px;background:var(--surface)}.metric span{display:block;color:var(--muted);font-size:12px}.metric strong{display:block;margin-top:12px;font-size:28px;font-variant-numeric:tabular-nums}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:24px 0 10px}.section-head h2{margin:0;font-size:16px}.section-head span{color:var(--muted);font-size:12px}.text-button{border:0;background:transparent;color:var(--accent);font-weight:700}.filters{margin-bottom:10px}.filters select{min-width:150px}.table-wrap{overflow:auto;border:1px solid var(--line);background:var(--surface)}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{height:44px;padding:0 12px;border-bottom:1px solid #e7ebe9;text-align:left;font-size:12px}th{position:sticky;top:0;background:var(--surface-2);color:#50615a;font-weight:800}tbody tr:hover{background:#f6f9f7}.usage{font-variant-numeric:tabular-nums}.usage.warning{color:#9b5f19;font-weight:800}.status{font-weight:800}.status.active{color:#26704f}.status.suspended,.status.expired{color:var(--danger)}.row-action{border:0;background:transparent;color:var(--accent);font-weight:700}
.state-view{margin-top:22px;padding:24px;border:1px solid var(--line);background:var(--surface)}.state-view.error{border-color:#e4b8bc}.skeleton{height:42px;margin:8px 0;background:#e8ecea}.skeleton.wide{height:92px}.empty-inline{padding:34px;border:1px solid var(--line);background:#fff;color:var(--muted);text-align:center}.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(180px,280px));gap:16px}.muted{color:var(--muted)}
.family-summary{display:grid;grid-template-columns:repeat(4,minmax(140px,1fr));gap:1px;margin-bottom:14px;border:1px solid var(--line);background:var(--line)}.summary-card{padding:14px;background:#fff}.summary-card span{display:block;color:var(--muted);font-size:12px}.summary-card strong{display:block;margin-top:8px;font-size:18px}.summary-card small{display:block;margin-top:6px;color:var(--muted);font-size:11px}
.member-tools{display:flex;align-items:center;gap:10px;margin-bottom:12px}.member-tools input{width:min(320px,100%)}.detail-stack{display:grid;gap:14px}.family-config{padding:16px;border:1px solid var(--line);background:#fff}.detail-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.detail-heading>div{display:grid;gap:3px}.detail-heading strong{font-size:16px}.detail-heading span{color:var(--muted);font-size:12px}.family-config .form-grid{grid-template-columns:repeat(3,minmax(140px,1fr))}.family-config label{margin:0}.family-config select,.table-wrap select{min-width:110px}.row-action.danger{color:var(--danger)}
.invite-result{display:grid;grid-template-columns:190px minmax(0,1fr);gap:20px;align-items:center;padding:18px;border:1px solid var(--line);background:#fff;text-align:left}.invite-result img{display:block;width:180px;height:180px;border:8px solid #fff}.invite-result input{width:100%;margin:8px 0}.invite-actions{display:flex;gap:8px;flex-wrap:wrap}
.modal-backdrop{position:fixed;z-index:20;inset:0;display:grid;place-items:center;padding:20px;background:rgba(25,35,31,.35)}.modal{width:min(680px,100%);border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 24px 70px rgba(22,45,37,.18)}.modal>header{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.modal h2{margin:0;font-size:17px}.icon-button{width:32px;height:32px;border:0;border-radius:var(--radius);background:#eef2f0;color:#405149;font-size:20px}.modal form{padding:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}.modal footer{display:flex;justify-content:flex-end;gap:8px;padding-top:8px}.toast{position:fixed;z-index:30;right:20px;bottom:20px;max-width:360px;padding:11px 14px;border:1px solid var(--line);border-radius:var(--radius);background:#173d42;color:#fff;opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}
@media(max-width:900px){.admin-shell{grid-template-columns:64px 1fr}.sidebar{padding:12px 8px}.sidebar-brand span:last-child{display:none}.sidebar nav{margin-top:14px}.nav-item{padding:0 6px;text-align:center;font-size:11px}.nav-item.signout{left:8px;width:48px;font-size:0}.nav-item.signout:after{content:"退出";font-size:11px}.workspace{padding:0 14px 24px}.topbar{height:auto;min-height:74px;align-items:flex-start;padding:12px 0}.top-actions input{width:160px}.metrics,.family-summary{grid-template-columns:1fr 1fr}.settings-grid,.form-grid,.family-config .form-grid{grid-template-columns:1fr}.member-tools{display:grid;grid-template-columns:1fr}}
@media(max-width:620px){.admin-shell{display:block}.sidebar{position:sticky;z-index:10;top:0;height:auto;display:flex;align-items:center;gap:4px;padding:6px;border-right:0;border-bottom:1px solid var(--line);overflow-x:auto}.sidebar-brand{display:none}.sidebar nav{display:flex;gap:2px;margin:0}.nav-item{width:auto;min-width:max-content;height:34px;padding:0 10px;text-align:center;font-size:11px}.nav-item.signout{position:static;width:auto;margin-left:auto;padding:0 10px;font-size:11px}.nav-item.signout:after{content:none}.topbar{display:grid}.top-actions{width:100%}.top-actions input{min-width:0;flex:1}.metrics,.family-summary{grid-template-columns:1fr 1fr}.workspace{padding:0 10px 24px}.modal-backdrop{padding:8px}.invite-result{grid-template-columns:1fr}.invite-result img{margin:auto}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}