:root {
    --primary: #0A84FF;
    --primary-dark: #0066CC;
    --bg: #0F1419;
    --surface: #1A1F26;
    --surface-hover: #232A33;
    --border: #2E3844;
    --text: #E8ECF0;
    --text-muted: #8A96A3;
    --success: #28C76F;
    --warning: #F5A623;
    --error: #EA4E43;
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
}

.brand .logo {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 6px;
    display: grid;
    place-items: center;
    font-size: 0.85rem;
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.nav-links a:hover { color: var(--text); }

.hero {
    text-align: center;
    padding: 80px 24px 60px;
}

.hero h1 {
    font-size: 2.6rem;
    margin: 0 0 16px;
    background: linear-gradient(90deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 680px;
    margin: 0 auto 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 60px 24px; }

.section-title {
    font-size: 1.5rem;
    margin: 0 0 24px;
    color: var(--text);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.15s, border-color 0.15s;
}

.card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.card h3 {
    margin: 0 0 8px;
    font-size: 1.15rem;
    color: var(--text);
}

.card p {
    margin: 0 0 16px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.card .meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    background: var(--surface-hover);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.badge.ok { color: var(--success); border-color: rgba(40, 199, 111, 0.3); }
.badge.planned { color: var(--warning); border-color: rgba(245, 166, 35, 0.3); }

.status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 28px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer {
    padding: 40px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
    margin-bottom: 28px;
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 1.8rem; }
    .card-grid { grid-template-columns: 1fr; }
}