:root{--bg: #eef4f0;--panel: rgba(255, 255, 255, .92);--line: #d9e4dd;--text: #1c2b24;--muted: #64756d;--brand: #0f5c4d;--brand-2: #1f7b68;--accent: #dfeee8;--danger: #c2410c;--warning: #b45309;--success: #15803d}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Noto Sans SC,Microsoft YaHei,sans-serif;color:var(--text);background:radial-gradient(circle at 0% 0%,rgba(15,92,77,.18),transparent 26%),linear-gradient(180deg,#edf5f1,#f7faf8 42%,#eef4f0)}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}.admin-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{padding:24px 18px;background:linear-gradient(180deg,#0d4037,#102f2a);color:#f3faf7;border-right:1px solid rgba(255,255,255,.08)}.brand-block{display:flex;align-items:center;gap:14px;padding:16px 12px 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var(--brand)}.notice-head{display:flex;justify-content:space-between;gap:12px;align-items:center}.notice-body{margin-top:8px;color:var(--muted);line-height:1.6}.notice-close{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:18px}.stack-form{display:flex;flex-direction:column;gap:14px}.primary-action,.ghost-btn{border:none;border-radius:14px;cursor:pointer;transition:transform .12s ease,opacity .12s ease}.primary-action{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);color:#fff;padding:12px 18px}.ghost-btn{background:#eaf3ef;color:var(--brand);padding:11px 16px}.ghost-btn.small{padding:8px 12px;font-size:13px}.ghost-btn.danger{color:var(--danger);background:#fff1eb}.primary-action:hover,.ghost-btn:hover{transform:translateY(-1px)}.muted-block,.error-box{padding:14px 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920px){.admin-shell{grid-template-columns:1fr}.sidebar{display:none}.filter-grid,.stats-grid,.stats-grid.two-cols{grid-template-columns:1fr}.page-header{flex-direction:column;align-items:start}.info-grid,.file-list{grid-template-columns:1fr}}