:root{--page-max-width:1440px;--surface-shadow:0 18px 48px rgba(15,23,42,0.08);--surface-border:rgba(148,163,184,0.25);--hero-bg:linear-gradient(135deg,#eff6ff,#f8fafc 45%,#eef2ff)}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:#f4f7fb;color:#0f172a}body{font-family:PingFang SC,SF Pro Text,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}.admin-page-shell{min-height:100vh;background:radial-gradient(circle at top right,rgba(37,99,235,.14),transparent 26%),radial-gradient(circle at bottom left,rgba(14,165,233,.12),transparent 24%),#f4f7fb}.admin-content-wrap{width:min(calc(100vw - 64px),var(--page-max-width));margin:0 auto;padding:24px 0 40px}.admin-surface{background:rgba(255,255,255,.88);border:1px solid var(--surface-border);box-shadow:var(--surface-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.admin-hero-card{background:var(--hero-bg);border:1px solid rgba(191,219,254,.8)}.admin-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:16px;gap:16px}.admin-summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));grid-gap:12px;gap:12px}.admin-task-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:12px;gap:12px}.admin-preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));grid-gap:12px;gap:12px}.admin-surface-soft{background:rgba(248,250,252,.96);border:1px solid rgba(148,163,184,.2);box-shadow:0 10px 24px rgba(15,23,42,.06)}.admin-login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top left,rgba(37,99,235,.18),transparent 26%),radial-gradient(circle at bottom right,rgba(14,165,233,.14),transparent 24%),#0f172a}.admin-login-card{width:min(460px,100%);padding:32px;border-radius:28px;background:rgba(248,250,252,.96);box-shadow:0 32px 80px rgba(15,23,42,.25)}.admin-page-actions{display:flex;gap:12px;flex-wrap:wrap}@media (max-width:960px){.admin-content-wrap{width:min(calc(100vw - 28px),var(--page-max-width));padding-top:16px}}