.breadcrumb {
    color: #8f97a9;
    font-size: 13px;
    margin-bottom: 16px;
}

    .breadcrumb a {
        color: #5b6375;
    }

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(260px, 1fr);
    gap: 28px;
}

article {
    background: #fff;
    border-radius: 20px;
    padding: 40px 48px;
    box-shadow: 0 30px 70px rgba(20, 34, 70, 0.1);
}

    article h1 {
        margin: 0 0 12px;
        font-size: 32px;
        line-height: 1.4;
    }

.meta {
    color: #a1a8bb;
    font-size: 14px;
    margin-bottom: 24px;
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

article p {
    line-height: 1.8;
    color: #464f62;
    margin: 18px 0;
}

blockquote {
    margin: 20px 0;
    padding: 18px 24px;
    border-left: 4px solid #ff6b3c;
    background: #fff5f0;
    border-radius: 10px;
    color: #d5532c;
}

.tips {
    background: #f6f8ff;
    border-radius: 12px;
    padding: 18px 20px;
    color: #5c6494;
    font-size: 14px;
}

aside {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.side-card {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 20px 60px rgba(16, 26, 60, 0.08);
}

    .side-card h3 {
        margin: 0 0 14px;
        font-size: 18px;
    }

.side-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

    .side-list a {
        text-decoration: none;
        color: #2f3542;
        line-height: 1.5;
    }

    .side-list span {
        display: block;
        color: #a0a7ba;
        font-size: 13px;
    }

.tag-cloud {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

    .tag-cloud span {
        background: #f6f7fb;
        color: #ff5b30;
        border-radius: 999px;
        padding: 4px 12px;
        font-size: 12px;
    }

footer {
    text-align: center;
    color: #9aa4b6;
    padding: 40px 0 60px;
    font-size: 13px;
}

@media (max-width: 960px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    article {
        padding: 28px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 16px 5vw;
    }

    main {
        padding: 30px 5vw 90px;
    }
}