:root{--bg:#07152f;--panel:#0d2348;--blue:#00a8ff;--cyan:#5ee7ff;--text:#eaf7ff;--muted:#9bcce8;--line:rgba(94,231,255,.22)}*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei",Segoe UI,Arial,sans-serif;background:#061225;color:var(--text)}.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 0,rgba(0,168,255,.25),transparent 35%),linear-gradient(135deg,#061225,#082452)}.login-card{width:380px;border:1px solid var(--line);background:rgba(13,35,72,.9);border-radius:24px;padding:34px;box-shadow:0 30px 80px rgba(0,0,0,.35)}.login-card h1{margin:0 0 8px}.login-card p,.hint,.muted{color:var(--muted)}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:12px;background:#071a38;color:var(--text);padding:12px 14px;outline:none}textarea{min-height:100px;resize:vertical}button,.admin-btn{border:0;border-radius:12px;background:linear-gradient(135deg,#008cff,#00d4ff);color:white;padding:12px 18px;cursor:pointer;text-decoration:none;font-weight:700}.login-card button{width:100%;margin-top:14px}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}aside{background:#061225;border-right:1px solid var(--line);padding:24px;position:sticky;top:0;height:100vh}.admin-logo{font-size:22px;font-weight:800;margin-bottom:28px}.admin-logo span{font-size:13px;color:var(--cyan)}aside a{display:block;color:#cfefff;text-decoration:none;padding:12px 14px;border-radius:12px;margin-bottom:8px}aside a:hover{background:rgba(0,168,255,.12)}main{padding:32px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px;margin:18px 0;box-shadow:0 18px 50px rgba(0,0,0,.18)}.stats{display:grid;grid-template-columns:repeat(2,220px);gap:18px}.stats div{background:linear-gradient(135deg,rgba(0,168,255,.18),rgba(94,231,255,.06));border:1px solid var(--line);border-radius:20px;padding:24px}.stats b{font-size:42px;display:block}.stats span{color:var(--muted)}.form label{display:block;margin-bottom:16px;color:#cfefff}.form label input,.form label textarea,.form label select{margin-top:8px}.check{display:flex!important;gap:10px;align-items:center}.check input{width:auto}.flash{padding:12px 14px;border-radius:12px;margin-bottom:12px}.flash.success{background:rgba(18,185,129,.18);border:1px solid rgba(18,185,129,.35)}.flash.error{background:rgba(255,75,95,.18);border:1px solid rgba(255,75,95,.35)}.admin-row,.admin-file{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:14px 0}.admin-row em,.admin-file p{color:var(--muted);font-style:normal}.actions{display:flex;gap:12px;align-items:center}.actions a{color:var(--cyan);text-decoration:none}.actions form{margin:0}.actions button{background:#c8324f;padding:8px 12px}@media(max-width:860px){.admin-shell{grid-template-columns:1fr}aside{height:auto;position:relative}.stats{grid-template-columns:1fr}.admin-file{display:block}.actions{margin-top:12px}}