* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #222;
    background: #fff;
    line-height: 1.6;
}

.container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid #eee;
    background: #fff;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    text-decoration: none;
}

.menu a {
    margin-left: 18px;
    color: #333;
    text-decoration: none;
}

.hero {
    padding: 56px 0 36px;
}

.hero h1 {
    max-width: 780px;
    font-size: 42px;
    line-height: 1.15;
    margin-bottom: 16px;
}

.hero p {
    max-width: 620px;
    font-size: 18px;
    color: #555;
}

.posts-grid h2 {
    font-size: 28px;
    margin-bottom: 24px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.post-card {
    border: 1px solid #eee;
    border-radius: 14px;
    overflow: hidden;
    background: #fff;
}

.post-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    display: block;
}

.post-card h3,
.post-card p,
.post-card .category,
.post-card .read-more {
    margin-left: 18px;
    margin-right: 18px;
}

.category {
    display: inline-block;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 700;
    color: #0a66c2;
}

.post-card h3 {
    font-size: 21px;
    line-height: 1.3;
}

.post-card h3 a {
    color: #1a1a1a;
    text-decoration: none;
}

.post-card p {
    color: #555;
}

.read-more {
    display: inline-block;
    margin-bottom: 20px;
    color: #0a66c2;
    font-weight: 700;
    text-decoration: none;
}

.article-container {
    max-width: 820px;
}

.article {
    padding: 42px 0;
}

.article-header h1 {
    font-size: 44px;
    line-height: 1.12;
    margin: 16px 0;
}

.excerpt {
    font-size: 20px;
    color: #555;
}

.article-meta {
    font-size: 14px;
    color: #777;
    margin-bottom: 28px;
}

.article figure {
    margin: 32px 0;
}

.article figure img {
    width: 100%;
    border-radius: 14px;
}

.article figcaption {
    font-size: 14px;
    color: #777;
    margin-top: 8px;
}

.article-content h2 {
    font-size: 30px;
    margin-top: 36px;
}

.article-content h3 {
    font-size: 24px;
    margin-top: 28px;
}

.article-content p {
    font-size: 18px;
    margin-bottom: 20px;
}

.site-footer {
    margin-top: 60px;
    padding: 28px 0;
    border-top: 1px solid #eee;
    color: #666;
}

@media (max-width: 900px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1,
    .article-header h1 {
        font-size: 34px;
    }
}

@media (max-width: 640px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu {
        margin-top: 12px;
    }

    .menu a {
        display: inline-block;
        margin: 0 12px 8px 0;
    }

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

    .hero h1,
    .article-header h1 {
        font-size: 30px;
    }
}

.header-container {
    display: flex;
    align-items: center;
    gap: 22px;
}

.menu {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.menu a {
    margin-left: 0;
}

.search-form {
    display: flex;
    gap: 8px;
}

.search-form input {
    width: 180px;
    height: 38px;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 0 12px;
}

.search-form button {
    height: 38px;
    border: 0;
    border-radius: 8px;
    padding: 0 14px;
    background: #0a66c2;
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

.footer-menu {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.footer-menu a {
    color: #555;
    text-decoration: none;
}

@media (max-width: 900px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu {
        flex-wrap: wrap;
    }

    .search-form {
        width: 100%;
    }

    .search-form input {
        flex: 1;
        width: auto;
    }
}

.breadcrumb {
    margin-top: 28px;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #0a66c2;
    text-decoration: none;
}

.breadcrumb span {
    margin: 0 6px;
}

.article-header .category {
    text-decoration: none;
}