:root {
    --brand: #2D5F9E;
    --brand-dark: #1f4676;
    --text: #26313d;
    --muted: #5d6b7a;
    --line: #e2e8ef;
    --bg: #f6f8fb;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.65;
}

.blog-header {
    background: var(--brand);
    color: #fff;
    padding: 16px 20px;
}

.blog-header-inner {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
}

.blog-logo {
    color: #fff;
    font-weight: 700;
    font-size: 19px;
    text-decoration: none;
}

.blog-nav a {
    color: #dce8f7;
    text-decoration: none;
    font-size: 15px;
    margin-left: 16px;
}

.blog-nav a:first-child {
    margin-left: 0;
}

.blog-nav a:hover {
    color: #fff;
    text-decoration: underline;
}

.blog-main {
    max-width: 860px;
    margin: 0 auto;
    padding: 28px 20px 48px;
}

.blog-card,
.blog-article {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px 26px;
}

.blog-card + .blog-card {
    margin-top: 18px;
}

.blog-article h1 {
    font-size: 30px;
    line-height: 1.25;
    margin: 0 0 8px;
}

.blog-article h2 {
    font-size: 22px;
    margin: 32px 0 10px;
}

.blog-article h3 {
    font-size: 18px;
    margin: 22px 0 8px;
}

.blog-article p {
    margin: 0 0 14px;
}

.blog-article ul,
.blog-article ol {
    margin: 0 0 16px;
    padding-left: 22px;
}

.blog-article li {
    margin-bottom: 8px;
}

.blog-article a {
    color: var(--brand);
}

.blog-date {
    color: var(--muted);
    font-size: 14px;
    margin: 0 0 18px;
}

.blog-lead {
    font-size: 18px;
    color: var(--muted);
}

.blog-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.blog-list li {
    border-bottom: 1px solid var(--line);
    padding: 18px 0;
}

.blog-list li:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.blog-list a {
    color: var(--brand);
    font-size: 20px;
    font-weight: 600;
    text-decoration: none;
}

.blog-list a:hover {
    text-decoration: underline;
}

.blog-list p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 15px;
}

.blog-note {
    background: #eef4fb;
    border-left: 4px solid var(--brand);
    border-radius: 8px;
    padding: 14px 18px;
    margin: 20px 0;
    font-size: 16px;
}

.blog-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 16px;
    font-size: 16px;
}

.blog-article th,
.blog-article td {
    border: 1px solid var(--line);
    padding: 8px 10px;
    text-align: left;
}

.blog-article th {
    background: #eef4fb;
    text-align: left;
}

.blog-cta {
    display: inline-block;
    background: var(--brand);
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    padding: 12px 22px;
    font-weight: 600;
    margin-top: 8px;
}

.blog-cta:hover {
    background: var(--brand-dark);
}

.blog-footer {
    border-top: 1px solid var(--line);
    padding: 22px 20px 40px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

.blog-footer a {
    color: var(--brand);
}

@media (max-width: 600px) {
    body {
        font-size: 16px;
    }

    .blog-card,
    .blog-article {
        padding: 18px;
        border-radius: 12px;
    }

    .blog-article h1 {
        font-size: 24px;
    }

    .blog-nav a {
        margin-left: 12px;
    }
}