.ch-blog-main {
    padding: 48px 0 72px;
}

.ch-blog-main h1 {
    margin: 0 0 12px;
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    line-height: 1.2;
}

.ch-blog-intro {
    margin: 0 0 36px;
    max-width: 60ch;
    color: var(--ch-muted);
    font-size: 16px;
}

.ch-blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.ch-blog-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 140px;
    padding: 24px 28px;
    background: var(--ch-panel);
    border: 1px solid var(--ch-edge);
    border-radius: 12px;
    text-decoration: none;
    color: var(--ch-text);
    text-align: center;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.ch-blog-card:hover {
    border-color: color-mix(in srgb, var(--ch-hero) 55%, var(--ch-edge));
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.ch-blog-card__title {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.35;
    font-weight: 600;
}

.ch-blog-card__category {
    display: block;
    margin-bottom: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ch-power);
}

.ch-blog-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 28px;
    color: var(--ch-muted);
    text-decoration: none;
    font-size: 14px;
}

.ch-blog-back:hover {
    color: var(--ch-text);
}

.ch-blog-article {
    max-width: 760px;
    margin: 0 auto;
}

.ch-blog-article__header {
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--ch-edge);
}

.ch-blog-article__category {
    margin: 0 0 12px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ch-power);
}

.ch-blog-article__header h1 {
    margin: 0 0 16px;
    font-size: clamp(1.55rem, 4vw, 2.1rem);
    line-height: 1.15;
}

.ch-blog-article__lead {
    margin: 0;
    color: var(--ch-muted);
    font-size: 17px;
    line-height: 1.65;
}

.ch-blog-article section {
    margin-bottom: 36px;
}

.ch-blog-article h2 {
    margin: 0 0 14px;
    font-size: clamp(1.15rem, 2.5vw, 1.45rem);
    line-height: 1.25;
}

.ch-blog-article p {
    margin: 0 0 14px;
    color: var(--ch-muted);
    line-height: 1.65;
}

.ch-blog-article ul {
    margin: 0 0 16px;
    padding-left: 1.25rem;
    color: var(--ch-muted);
}

.ch-blog-article ol {
    margin: 0 0 16px;
    padding-left: 1.35rem;
    color: var(--ch-muted);
}

.ch-blog-article li {
    margin-bottom: 0.35rem;
    line-height: 1.6;
}

.ch-blog-article li::marker {
    color: var(--ch-power);
}

.ch-blog-article blockquote {
    margin: 0 0 16px;
    padding: 18px 22px;
    border-left: 3px solid var(--ch-power);
    border-radius: 0 10px 10px 0;
    background: var(--ch-panel);
    color: var(--ch-muted);
    font-size: 15px;
    line-height: 1.65;
}

.ch-blog-article__tip {
    padding: 22px 26px;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--ch-accent) 35%, var(--ch-edge));
    background: color-mix(in srgb, var(--ch-accent) 8%, var(--ch-panel));
}

.ch-blog-article__tip h2 {
    margin-bottom: 10px;
    font-size: 1rem;
    color: var(--ch-accent);
}

.ch-blog-article__research {
    padding: 26px 28px;
    border-radius: 14px;
    border: 1px solid color-mix(in srgb, var(--ch-power) 35%, var(--ch-edge));
    background:
        radial-gradient(ellipse 70% 55% at 0% 0%, rgba(61, 139, 255, 0.1), transparent 55%),
        var(--ch-panel);
}

.ch-blog-article__research h2 {
    margin-bottom: 12px;
}

.ch-blog-article__cta {
    padding: 28px 32px;
    border-radius: 14px;
    border: 1px solid color-mix(in srgb, var(--ch-hero) 35%, var(--ch-edge));
    background:
        radial-gradient(ellipse 80% 60% at 100% 0%, rgba(255, 45, 85, 0.12), transparent 55%),
        var(--ch-panel);
}

.ch-blog-article__cta h2 {
    margin-bottom: 12px;
}

.ch-blog-article__cta p:last-of-type {
    margin-bottom: 20px;
}

.ch-blog-article__faq details {
    margin-bottom: 10px;
    border: 1px solid var(--ch-edge);
    border-radius: 10px;
    background: var(--ch-panel);
    overflow: hidden;
}

.ch-blog-article__faq summary {
    padding: 14px 18px;
    cursor: pointer;
    font-weight: 600;
    color: var(--ch-text);
    list-style: none;
}

.ch-blog-article__faq summary::-webkit-details-marker {
    display: none;
}

.ch-blog-article__faq details[open] summary {
    border-bottom: 1px solid var(--ch-edge);
}

.ch-blog-article__faq details p {
    margin: 0;
    padding: 14px 18px 16px;
}

@media (max-width: 640px) {
    .ch-blog-main {
        padding: 32px 0 56px;
    }

    .ch-blog-card {
        min-height: 120px;
        padding: 20px;
    }

    .ch-blog-article__cta {
        padding: 22px 20px;
    }
}