* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background: radial-gradient(circle at top right, #e0f2fe 0%, #f8fafc 45%, #f8fafc 100%);
}

.container {
    width: min(1100px, 92%);
    margin: 0 auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0 8px;
    position: sticky;
    top: 0;
    background: rgba(248, 250, 252, 0.92);
    backdrop-filter: blur(8px);
    z-index: 4;
}

.brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: #0f172a;
}

nav a {
    color: #0f172a;
    text-decoration: none;
    margin-left: 14px;
    font-weight: 600;
}

nav a:hover {
    color: #0284c7;
}

.hero {
    background: linear-gradient(135deg, #0369a1, #0ea5e9 50%, #22d3ee);
    color: #fff;
    padding: 34px;
    border-radius: 12px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
    box-shadow: 0 16px 30px rgba(2, 132, 199, 0.25);
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 4px 10px;
    border-radius: 999px;
    margin: 0 0 10px;
    font-size: 0.85rem;
}

.hero h1 {
    margin: 0 0 8px;
    line-height: 1.2;
}

.hero-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.button {
    display: inline-block;
    text-decoration: none;
    background: #082f49;
    color: #fff;
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid #082f49;
    font-weight: 700;
}

.button-outline {
    background: transparent;
    border-color: #fff;
}

.hero-metrics {
    display: grid;
    gap: 12px;
}

.hero-metrics div {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 10px;
    padding: 12px 14px;
}

.hero-metrics strong {
    display: block;
    font-size: 1.3rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 18px;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 24px rgba(2, 132, 199, 0.18);
}

.card h3 {
    margin-top: 0;
}

.card a {
    color: #0369a1;
}

.read-more {
    font-weight: 700;
}

.ad-slot {
    margin: 28px 0;
    background: linear-gradient(135deg, #e0f2fe, #f1f5f9);
    border: 1px dashed #0ea5e9;
    border-radius: 8px;
    text-align: center;
    padding: 20px;
    color: #334155;
    font-weight: 600;
}

.article {
    background: #fff;
    margin-top: 24px;
    padding: 26px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.article h1 {
    margin-top: 0;
}

.intro {
    font-size: 1.06rem;
}

.cover-image {
    width: 100%;
    border-radius: 12px;
    border: 1px solid #bae6fd;
    margin: 8px 0 18px;
    background: #e0f2fe;
}

.back-link {
    display: inline-block;
    margin-bottom: 12px;
    text-decoration: none;
    font-weight: 700;
    color: #0369a1;
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    align-items: start;
}

.panel {
    background: #fff;
    border: 1px solid #dbeafe;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 8px 16px rgba(15, 23, 42, 0.04);
}

.info-box {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: 12px;
    padding: 14px 16px;
    margin: 16px 0;
}

.crumbs {
    margin-bottom: 0;
}

.crumbs a {
    color: #0369a1;
    text-decoration: none;
    font-weight: 700;
}

.kpi-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 8px 16px;
}

.related-links {
    columns: 2;
    gap: 20px;
}

.related-links li {
    break-inside: avoid;
    margin-bottom: 8px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 12px;
}

.related-card {
    border: 1px solid #dbeafe;
    border-radius: 10px;
    background: #ffffff;
    padding: 12px;
}

.related-card h3 {
    margin: 0 0 6px;
    font-size: 1rem;
}

.related-card p {
    margin: 0;
    color: #475569;
    font-size: 0.93rem;
}

.sitemap-list li {
    margin-bottom: 6px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0 18px;
    background: #fff;
}

.comparison-table th,
.comparison-table td {
    border: 1px solid #dbeafe;
    padding: 10px;
    text-align: left;
}

.comparison-table th {
    background: #e0f2fe;
}

.footer {
    margin: 30px auto 20px;
    padding: 16px 0;
    border-top: 1px solid #dbeafe;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    margin-bottom: 10px;
}

.footer h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.footer-links {
    margin: 0;
    padding-left: 18px;
}

.footer-links li {
    margin-bottom: 6px;
}

.footer a {
    color: #0369a1;
}

@media (max-width: 860px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .split {
        grid-template-columns: 1fr;
    }

    .related-links {
        columns: 1;
    }
}