html, body { height: 100%; overflow: hidden; margin: 0; }
body { display: flex; align-items: center; justify-content: center; padding-top: 70px; }

/* ========== 导航-页首 ==========  */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(10, 10, 15, 0.85); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color); height: 70px; }
.nav-container { max-width: 1400px; margin: 0 auto; height: 100%; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary-color) 0%, color-mix(in srgb, var(--primary-color) 60%, black) 100%); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 18px; color: white; }
.logo-text h1 { font-size: 16px; font-weight: 600; color: var(--text-primary); margin: 0; }
.logo-text p { font-size: 11px; color: var(--text-muted); margin: 0; }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-actions .btn { padding: 8px 16px; font-size: 13px; }


/* ========== 页脚 ========== */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-content {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

.footer-content p {
    margin: 0;
    line-height: 1.5;
}

.footer-content a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-content a:hover {
    color: var(--primary-color);
}