/* 读到杂志专用样式 */

/* 书本网格 */
.bookshelf {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.book-item {
    text-align: center;
    transition: transform 0.2s;
}

.book-item:hover {
    transform: translateY(-8px);
}

.book-link {
    text-decoration: none;
    display: block;
}

.book-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    border-radius: 4px 8px 8px 4px;
    overflow: hidden;
    box-shadow: 8px 8px 20px rgba(0, 0, 0, 0.15), -2px 0 0 0 rgba(0, 0, 0, 0.05);
    background: #f5f0e6;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #d4c9b0 0%, #b8aa86 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    font-size: 1.2rem;
    font-weight: bold;
    padding: 1rem;
}

.book-spine {
    position: absolute;
    left: 0;
    top: 0;
    width: 12px;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.2), rgba(0,0,0,0.05), rgba(0,0,0,0.1));
    border-radius: 2px 0 0 2px;
}

.book-info {
    margin-top: 0.8rem;
}

.book-title {
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e2f;
    margin-bottom: 0.25rem;
}

.book-meta {
    font-size: 0.8rem;
    color: #6c757d;
}

/* 期刊详情页 */
.issue-single {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.issue-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e2e8f0;
}

.issue-hero-cover {
    flex: 0 0 240px;
}

.issue-hero-cover img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.issue-hero-info {
    flex: 1;
}

.issue-title {
    font-size: 2.2rem;
    font-family: var(--font-serif, 'Noto Serif SC', serif);
    margin-bottom: 1rem;
    color: #1e2a2e;
}

.issue-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #4a5568;
    margin-bottom: 1rem;
}

.issue-meta {
    font-size: 0.9rem;
    color: #6c757d;
}

.contents-title {
    font-size: 1.6rem;
    font-family: var(--font-serif, 'Noto Serif SC', serif);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #8b5a2b;
    display: inline-block;
}

.column-section {
    margin-bottom: 2.5rem;
}

.column-title {
    font-size: 1.4rem;
    font-family: var(--font-serif, 'Noto Serif SC', serif);
    border-left: 4px solid #8b5a2b;
    padding-left: 0.75rem;
    margin-bottom: 1.2rem;
    color: #2c3e2f;
}

/* 文章卡片 */
.articles-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.magazine-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.magazine-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
}

.card-thumbnail {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.magazine-card:hover .card-thumbnail img {
    transform: scale(1.05);
}

.card-content {
    padding: 1.2rem;
}

.card-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.card-title a {
    text-decoration: none;
    color: #1e2a2e;
}

.card-title a:hover {
    color: #2c3e2f;
}

.card-meta {
    font-size: 0.8rem;
    color: #6c757d;
    margin-bottom: 0.75rem;
}

.card-excerpt {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.5;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .bookshelf {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1.5rem;
    }
    .issue-hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .issue-hero-cover {
        flex-basis: auto;
        max-width: 200px;
    }
    .issue-title {
        font-size: 1.8rem;
    }
    .column-title {
        font-size: 1.2rem;
    }
    .articles-list {
        grid-template-columns: 1fr;
    }
}

/* 左右分栏布局增强 */
.issue-single-layout {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem;
}
.issue-header {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}
.issue-cover {
    flex: 0 0 140px;
}
.issue-cover img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.issue-info {
    flex: 1;
}
.issue-title {
    font-size: 1.8rem;
    font-family: var(--font-serif, 'Noto Serif SC', serif);
    margin-bottom: 0.5rem;
}
.issue-description {
    color: #4a5568;
}
.magazine-two-columns {
    display: flex;
    gap: 2rem;
}
.magazine-sidebar {
    flex: 0 0 260px;
    background: #f9f7f0;
    border-radius: 12px;
    padding: 1.2rem;
    align-self: start;
}
.sidebar-title {
    font-size: 1.2rem;
    border-left: 4px solid #8b5a2b;
    padding-left: 0.75rem;
    margin-bottom: 1rem;
}
.column-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}
.column-nav li {
    margin-bottom: 0.6rem;
}
.column-nav a {
    text-decoration: none;
    color: #2c3e2f;
    display: block;
    padding: 0.4rem 0;
    transition: color 0.2s;
}
.column-nav a:hover,
.column-nav a.active {
    color: #8b5a2b;
    font-weight: 500;
}
.post-count {
    font-size: 0.8rem;
    color: #6c757d;
}
.magazine-content {
    flex: 1;
}
.magazine-article {
    background: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.article-title {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}
.article-title a {
    text-decoration: none;
    color: #1e2a2e;
}
.article-title a:hover {
    color: #2c3e2f;
}
.article-meta {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 1rem;
}
.article-content {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}
.article-thumbnail {
    margin: 1rem 0;
}
.article-thumbnail img {
    max-width: 100%;
    border-radius: 8px;
}
.read-more {
    display: inline-block;
    color: #8b5a2b;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.read-more:hover {
    border-bottom-color: #8b5a2b;
}
@media (max-width: 768px) {
    .magazine-two-columns {
        flex-direction: column;
    }
    .magazine-sidebar {
        flex-basis: auto;
        width: 100%;
    }
}

/* 左侧栏封面样式 */
.issue-sidebar-cover {
    margin-bottom: 1.5rem;
    text-align: center;
}
.issue-sidebar-cover img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}
.issue-sidebar-cover img:hover {
    transform: scale(1.02);
}