*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,sans-serif;color:#2d3748;background:#f5f7fa}
nav{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.08);padding:0 20px;position:sticky;top:0;z-index:100}
nav .inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:64px}
nav .logo{font-size:1.4em;font-weight:700;color:#1a56db;text-decoration:none;display:flex;align-items:center;gap:8px}
nav .logo .icon{width:36px;height:36px;background:#1a56db;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
nav ul{list-style:none;display:flex;gap:28px}
nav a{text-decoration:none;color:#4b5563;font-size:.95em;font-weight:500;padding:8px 0;border-bottom:2px solid transparent;transition:all .2s}
nav a:hover,nav a.active{color:#1a56db;border-bottom-color:#1a56db}
.user-area{display:flex;align-items:center;gap:12px}
.user-area .avatar{width:32px;height:32px;background:#e0e7ff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:#1a56db}
.user-area a{font-size:.9em;color:#1a56db;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.breadcrumb{padding:16px 0;font-size:.85em;color:#9ca3af}
.breadcrumb a{color:#6b7280;text-decoration:none}
.breadcrumb a:hover{color:#1a56db}
.panel{background:#fff;border-radius:12px;box-shadow:0 1px 4px rgba(0,0,0,.06);overflow:hidden;margin-bottom:24px}
.panel-header{padding:18px 24px;border-bottom:1px solid #f3f4f6;display:flex;justify-content:space-between;align-items:center}
.panel-header h3{font-size:1.05em;color:#1f2937}
footer{background:#1e293b;color:#94a3b8;padding:32px 20px;text-align:center;font-size:.85em;margin-top:60px}
footer a{color:#94a3b8;text-decoration:none;margin:0 12px}
footer .links{margin-bottom:16px}
@media(max-width:768px){nav ul{display:none}}