/* ============================================
   博客页专属样式 - 基于主站 style.css 风格
   ============================================ */

/* ---------- 博客介绍区域 ---------- */
.blog-hero {
    background: var(--light);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 20px 25px;
    margin-bottom: 20px;
    text-align: center;
}

.blog-hero p {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.8;
    padding-left: 10px;
    border-left: 3px solid var(--primary);
    text-align: left;
    display: inline-block;
}

/* ---------- 分类标签栏 ---------- */
.blog-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 8px 20px;
    border: 2px solid var(--primary);
    background: var(--light);
    color: var(--primary);
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn i {
    margin-right: 4px;
}

.tab-btn:hover {
    background: var(--secondary);
}

.tab-btn.active {
    background: var(--primary);
    color: var(--light);
}

/* ---------- 博客卡片列表 ---------- */
.blog-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.blog-card {
    background: var(--light);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 22px 25px;
    transition: var(--transition);
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.blog-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.blog-category {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--light);
}

.cat-spintronics { background: #3D55A7; }
.cat-ai         { background: #FF6B6B; }
.cat-others     { background: #6B9F6B; }

.blog-date {
    font-weight: 600;
    color: var(--primary-dark);
    background: var(--secondary);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.blog-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.5;
}

.blog-card:hover .blog-title {
    color: var(--primary);
}

.blog-excerpt {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 12px;
    text-align: justify;
}

.blog-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-tag {
    font-size: 0.8rem;
    color: var(--primary);
    background: var(--secondary);
    padding: 2px 10px;
    border-radius: 12px;
    font-weight: 500;
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 768px) {
    .blog-tabs {
        justify-content: center;
    }

    .tab-btn {
        padding: 6px 16px;
        font-size: 0.9rem;
    }

    .blog-card {
        padding: 16px 18px;
    }

    .blog-title {
        font-size: 1.05rem;
    }

    .blog-excerpt {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .blog-hero p {
        display: block;
        font-size: 0.95rem;
        text-align: justify;
    }

    .blog-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}