/* AI Chinese for Biz — Blog Stylesheet (俄语文章区) */
/* 复用主站 style.css 的品牌色变量 + 文章专属布局 */

.blog-wrap { max-width: 880px; margin: 0 auto; padding: 68px 24px 40px; }
.blog-header { margin-bottom: 40px; }
.blog-header__breadcrumb { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: 12px; }
.blog-header__breadcrumb a { color: var(--color-accent-dark); }
.blog-header__title { font-size: clamp(1.75rem, 3.5vw, 2.4rem); font-weight: 800; color: var(--color-primary); line-height: 1.25; margin-bottom: 14px; letter-spacing: -0.02em; }
.blog-header__meta { display: flex; flex-wrap: wrap; gap: 10px 20px; font-size: 0.875rem; color: var(--color-text-muted); }
.blog-header__meta span { display: inline-flex; align-items: center; gap: 6px; }

.blog-body { font-size: 1.05rem; line-height: 1.8; color: var(--color-text); }
.blog-body h2 { font-size: 1.4rem; font-weight: 700; color: var(--color-primary); margin: 40px 0 16px; padding-top: 8px; border-top: 1px solid var(--color-border-light); }
.blog-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--color-primary); margin: 28px 0 12px; }
.blog-body p { margin-bottom: 16px; }
.blog-body ul, .blog-body ol { margin: 0 0 20px 24px; list-style: disc; }
.blog-body ol { list-style: decimal; }
.blog-body li { margin-bottom: 8px; }
.blog-body strong { color: var(--color-primary); }
.blog-body a { color: var(--color-accent-dark); text-decoration: underline; }
.blog-body table { width: 100%; border-collapse: collapse; margin: 20px 0 28px; font-size: 0.95rem; }
.blog-body table th, .blog-body table td { border: 1px solid var(--color-border); padding: 10px 14px; text-align: left; }
.blog-body table th { background: var(--color-primary); color: #fff; font-weight: 600; }
.blog-body table tr:nth-child(even) td { background: var(--color-bg); }

.blog-cta { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #fff; border-radius: var(--radius-lg); padding: 32px; margin: 40px 0; text-align: center; }
.blog-cta__title { font-size: 1.3rem; font-weight: 700; margin-bottom: 10px; color: #fff; }
.blog-cta__desc { font-size: 0.95rem; opacity: 0.9; margin-bottom: 20px; }
.blog-cta .btn--primary { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary-dark); }

.blog-faq { margin: 40px 0; }
.blog-faq__item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
.blog-faq__q { font-weight: 600; color: var(--color-primary); padding: 14px 18px; cursor: pointer; }
.blog-faq__a { padding: 0 18px 16px; font-size: 0.95rem; color: var(--color-text-secondary); }
summary::-webkit-details-marker { display: none; }

.blog-nav { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin: 40px 0 0; padding-top: 24px; border-top: 1px solid var(--color-border); }
.blog-nav a { font-size: 0.9rem; color: var(--color-accent-dark); font-weight: 600; }
.blog-nav a:hover { text-decoration: underline; }

/* 文章列表（blog/index.html） */
.blog-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.blog-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px 20px 24px; background: #fff; transition: box-shadow var(--transition-smooth); }
.blog-card:hover { box-shadow: var(--shadow-lg); }
.blog-card__tag { display: inline-block; font-size: 0.75rem; font-weight: 600; color: var(--color-accent-dark); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; }
.blog-card__title { font-size: 1.1rem; font-weight: 700; color: var(--color-primary); line-height: 1.4; margin-bottom: 8px; }
.blog-card__desc { font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 12px; }
.blog-card__meta { font-size: 0.78rem; color: var(--color-text-muted); }
.blog-card a { color: inherit; }