* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #0a0f1e 0%, #0c1222 100%);
    color: #eef5ff;
    font-family: 'Segoe UI', 'Poppins', system-ui, -apple-system, sans-serif;
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: rgba(20, 30, 55, 0.6);
    backdrop-filter: blur(8px);
    border-radius: 24px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    transition: all 0.2s;
}

.card:hover {
    border-color: #3b82f6;
}

.card h2, .card h3 {
    color: #00ffcc;
    margin-bottom: 16px;
    font-weight: 600;
}

.card h2 {
    font-size: 1.6rem;
    border-left: 4px solid #00ffcc;
    padding-left: 16px;
}

.btn {
    background: #3b82f6;
    border: none;
    padding: 8px 20px;
    border-radius: 40px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.btn:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(59, 130, 246, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid #3b82f6;
    color: #3b82f6;
}

.btn-outline:hover {
    background: #3b82f6;
    color: white;
}

.btn-small {
    padding: 4px 12px;
    font-size: 0.8rem;
}

.btn-danger {
    background: #dc2626;
}

.btn-danger:hover {
    background: #b91c1c;
}

input, select, textarea {
    background: #1e2a3a;
    border: 1px solid #3b82f6;
    border-radius: 12px;
    padding: 8px 14px;
    color: white;
    font-size: 0.9rem;
    outline: none;
    transition: 0.2s;
}

input:focus, select:focus {
    border-color: #00ffcc;
    box-shadow: 0 0 5px rgba(0,255,204,0.3);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

th, td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid #2d3a5e;
}

th {
    color: #00ffcc;
    font-weight: 500;
}

tr:hover {
    background: rgba(59,130,246,0.1);
}

.badge-online {
    background: #10b981;
    color: white;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
}

.badge-offline {
    background: #6b7280;
    color: white;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
}

.badge-warning {
    background: #f59e0b;
    color: black;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
}

.table-wrapper {
    overflow-x: auto;
}

.error {
    color: #f87171;
    font-size: 0.85rem;
    margin-top: 8px;
}

.success {
    color: #00ffcc;
}

.hidden {
    display: none;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.mb-4 {
    margin-bottom: 16px;
}

/* 公共页面专用 */
.public-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0f1e 0%, #0c1222 100%);
    position: relative;
}
.public-page .hero-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/bj.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    pointer-events: none;
    z-index: 0;
}
.public-page .overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(0,20,40,0.7), rgba(0,0,0,0.85));
    z-index: 0;
}
.public-page .content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.public-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    flex-wrap: wrap;
    border-bottom: 1px solid rgba(100,180,250,0.2);
    margin-bottom: 40px;
}
.public-nav .logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #aaffff, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.public-nav .nav-links {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    align-items: center;
}
.public-nav .nav-links a {
    color: #cbd5e6;
    text-decoration: none;
    font-weight: 500;
    transition: 0.2s;
}
.public-nav .nav-links a:hover {
    color: #60a5fa;
}
.public-nav .btn-outline {
    border: 1px solid #3b82f6;
    background: transparent;
    padding: 6px 20px;
    border-radius: 40px;
    color: #3b82f6;
}
.public-nav .btn-outline:hover {
    background: #3b82f6;
    color: white;
}
.public-footer {
    margin-top: 60px;
    padding: 30px 0;
    border-top: 1px solid rgba(100,150,220,0.2);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
    font-size: 0.85rem;
    color: #8a9ac0;
}
.public-footer .footer-links {
    display: flex;
    gap: 28px;
}
.public-footer .footer-links a {
    color: #8a9ac0;
    text-decoration: none;
}
.public-footer .footer-links a:hover {
    color: #60a5fa;
}
.public-card {
    background: rgba(20,30,55,0.6);
    backdrop-filter: blur(8px);
    border-radius: 28px;
    padding: 28px 32px;
    border: 1px solid rgba(59,130,246,0.3);
    margin-bottom: 30px;
}
.public-card h1 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #00ffcc;
}
.public-card h2 {
    font-size: 1.6rem;
    margin: 20px 0 10px;
    color: #60a5fa;
}
.public-card p, .public-card li {
    line-height: 1.8;
    color: #d0d8f0;
}
.public-card a {
    color: #00ffcc;
}
@media (max-width: 720px) {
    .public-nav { flex-direction: column; gap: 15px; }
    .public-nav .nav-links { justify-content: center; }
    .public-card { padding: 20px; }
    .public-card h1 { font-size: 1.8rem; }
}