:root{--bg:#f6f4ef;--panel:#fff;--text:#202521;--muted:#69736d;--line:#e5e0d8;--primary:#34785d;--primary-strong:#255b46;--accent:#d99b38;--danger:#c95045}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.admin-shell{grid-template-columns:232px 1fr;min-height:100vh;display:grid}.sidebar{color:#f8fbf7;background:#173d31;padding:24px 18px}.brand{align-items:center;gap:12px;margin-bottom:28px;display:flex}.brand-mark{color:#173d31;background:#f0c15d;border-radius:8px;place-items:center;width:40px;height:40px;font-weight:800;display:grid}.brand small{color:#bdd5c9;margin-top:4px;display:block}.sidebar nav{gap:8px;display:grid}.sidebar nav a{color:#dcebe4;border-radius:8px;padding:10px 12px}.sidebar nav a:hover{background:#ffffff1a}.admin-main{padding:28px;overflow:auto}.page-head{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.page-head h1{margin:0;font-size:26px}.page-head p{color:var(--muted);margin:6px 0 0}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px}.grid{gap:16px;display:grid}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}.stat strong{margin-top:8px;font-size:28px;display:block}.muted{color:var(--muted)}.btn{background:var(--primary);color:#fff;cursor:pointer;border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:38px;padding:0 14px;display:inline-flex}.btn.secondary{color:var(--text);background:#e8ede9}.btn.danger{background:var(--danger)}.btn:disabled{cursor:not-allowed;opacity:.55}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.field{gap:6px;display:grid}.field.full{grid-column:1/-1}.field label{color:var(--muted);font-size:13px}.field input,.field textarea,.field select{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;min-height:38px;padding:8px 10px}.field textarea{resize:vertical;min-height:92px}.toolbar{flex-wrap:wrap;gap:10px;margin:12px 0;display:flex}.modal-backdrop{z-index:50;background:#1118276b;justify-content:center;align-items:center;padding:28px;display:flex;position:fixed;inset:0}.modal{background:var(--panel);border:1px solid var(--line);border-radius:8px;flex-direction:column;width:min(760px,100%);max-width:760px;max-height:calc(100vh - 56px);display:flex;box-shadow:0 24px 64px #11182738}.modal-wide{width:min(1040px,100%);max-width:1040px}.modal-head,.modal-actions{justify-content:space-between;align-items:center;gap:12px;padding:18px;display:flex}.modal-head{border-bottom:1px solid var(--line)}.modal-head h2{margin:0;font-size:20px}.modal-head p{color:var(--muted);margin:4px 0 0}.modal-body{padding:18px;overflow:auto}.modal-actions{border-top:1px solid var(--line);justify-content:flex-end}.tag-groups{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.tag-group{border:1px solid var(--line);border-radius:8px;padding:10px}.tag-group label{margin-top:6px;display:block}.table{border-collapse:collapse;width:100%}.table th,.table td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:10px}.table th{color:var(--muted);font-size:13px;font-weight:600}.cover{object-fit:cover;background:#eef2ef;border-radius:6px;width:78px;height:56px}.login-wrap{place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{width:100%;max-width:420px}.error{color:var(--danger);margin:8px 0 0}@media (max-width:900px){.admin-shell{grid-template-columns:1fr}.sidebar{position:static}.stats,.form-grid,.tag-groups{grid-template-columns:1fr}.modal-backdrop{padding:12px}}