/* 分类列表页样式 - 紧凑的 Windows 风格 */

/* 顶部导航栏 */
.category-nav {
    position: sticky;
    top: 0;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    position: relative;
}

.back-link {
    position: absolute;
    left: 32px;
    text-decoration: none;
    color: var(--secondary-color);
    font-size: 15px;
    transition: var(--transition);
    white-space: nowrap;
    padding: 6px 12px;
    border-radius: 4px;
}

.back-link:hover {
    color: var(--primary-color);
    background-color: var(--hover-color);
}

.nav-categories {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.nav-item {
    padding: 8px 20px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 16px;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
    position: relative;
}

.nav-item:hover {
    color: var(--primary-color);
    background-color: var(--hover-color);
}

.nav-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

/* 文章列表 */
.article-list {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* 书影音网格布局（图书馆式） */
.article-list.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 24px 16px;
    margin-top: var(--spacing-lg);
}

.media-item {
    background-color: transparent;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.media-item:hover {
    transform: translateY(-4px);
}

.media-item a {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.media-cover {
    position: relative;
    width: 100%;
    padding-top: 140%; /* 1:1.4 竖长方形比例（标准书本封面，参考豆瓣） */
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background-color: var(--hover-color);
}

.media-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    display: block;
}

.media-item:hover .media-cover img {
    transform: scale(1.05);
}

.media-info {
    padding: 8px 0;
    text-align: center;
}

.media-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.media-meta {
    font-size: 12px;
    color: var(--light-text);
    line-height: 1.4;
}

.media-author {
    font-size: 13px;
    color: var(--secondary-color);
    margin: 4px 0;
    line-height: 1.3;
}

.media-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin: 6px 0;
}

.media-star {
    font-size: 12px;
    color: #ddd;
}

.media-star.full {
    color: #feca57;
}

.media-star.half {
    color: #feca57;
    opacity: 0.7;
}

.media-star.empty {
    color: #e0e0e0;
}

.media-rating .rating-number {
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-left: 2px;
}

.media-status {
    display: inline-block;
    font-size: 11px;
    padding: 2px 8px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 10px;
    margin: 4px 0;
}

.article-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.article-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.article-item a {
    display: block;
    padding: var(--spacing-lg);
    text-decoration: none;
    color: inherit;
}

.article-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.article-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-excerpt {
    font-size: 14px;
    color: var(--secondary-color);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 13px;
    color: var(--light-text);
}

.article-date {
    display: flex;
    align-items: center;
}

.article-tags {
    display: flex;
    align-items: center;
}

/* 音乐列表 - 紧凑风格 */
.music-section {
    margin-top: 12px;
}

.music-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding: 0 4px;
}

.music-tab {
    padding: 8px 16px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--secondary-color);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    border-radius: 4px 4px 0 0;
}

.music-tab:hover {
    color: var(--primary-color);
    background-color: var(--hover-color);
}

.music-tab.active {
    color: var(--primary-color);
    font-weight: 600;
    background-color: var(--hover-color);
}

.music-content {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.music-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    transition: var(--transition);
}

.music-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.music-cover {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 正方形比例（标准专辑封面） */
    overflow: hidden;
}

.music-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.music-info {
    padding: 10px;
}

.music-title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.3;
}

.music-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: block;
}

.music-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.music-artist,
.music-year,
.music-album {
    font-size: 12px;
    color: var(--secondary-color);
    line-height: 1.4;
    margin-bottom: 2px;
}

.lyrics-toggle {
    margin-top: 8px;
    padding: 4px 12px;
    background-color: var(--hover-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--secondary-color);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.lyrics-toggle:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 歌词模态框 */
.lyrics-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease-in-out;
}

.lyrics-modal-content {
    background-color: var(--card-bg);
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.lyrics-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.lyrics-modal-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.lyrics-modal-close {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: var(--hover-color);
    color: var(--secondary-color);
    border: none;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lyrics-modal-close:hover {
    background: var(--primary-color);
    color: white;
}

.lyrics-modal-body {
    padding: 16px;
    overflow-y: auto;
    max-height: calc(80vh - 60px);
}

.lyrics-text {
    margin: 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-color);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.empty-message,
.error-message {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--light-text);
    font-size: 16px;
}

.error-message {
    color: #e74c3c;
}

/* 响应式设计 - 移动端全面适配 */
@media (max-width: 768px) {
    /* 顶部导航栏移动端适配 */
    .category-nav {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .back-link {
        position: static;
        order: 2;
        font-size: 13px;
        padding: 4px 8px;
    }

    .nav-categories {
        order: 1;
        width: 100%;
        justify-content: center;
        gap: 4px;
    }

    .nav-item {
        padding: 6px 12px;
        font-size: 14px;
    }

    .article-item a {
        padding: var(--spacing-md);
    }

    .article-title {
        font-size: 18px;
    }

    .article-excerpt {
        font-size: 13px;
    }

    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    /* 书影音移动端适配 */
    .article-list.media-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 12px 8px;
    }

    .media-title {
        font-size: 12px;
    }

    .media-meta {
        font-size: 10px;
    }

    /* 音乐移动端适配 */
    .music-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 8px;
    }

    .music-tabs {
        flex-wrap: wrap;
    }

    .music-tab {
        padding: 6px 12px;
        font-size: 13px;
    }

    /* 椭圆轮播图移动端适配 */
    .carousel-banner {
        height: 55vw;
        min-height: 180px;
    }

    .carousel-item-img-wrapper {
        width: 50vw;
        height: 50vw;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
    }

    .carousel-btn-icon {
        width: 18px;
        height: 18px;
    }

    /* 带封面的文章列表移动端适配 */
    .article-item.with-cover .article-link-flex {
        flex-direction: column;
        gap: 12px;
        padding: var(--spacing-md);
    }

    .article-cover-wrapper {
        width: 100%;
        height: 0;
        padding-top: 56.25%; /* 16:9比例 */
        position: relative;
    }

    .article-cover-wrapper img {
        position: absolute;
        top: 0;
        left: 0;
    }
}

/* ============ 椭圆轮播图样式 ============ */
.carousel-banner {
    overflow: hidden;
    position: relative;
    width: 100%;
    height: 30vw;
    min-height: 280px;
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    margin: 20px 0;
}

.carousel-wrapper {
    display: flex;
    position: absolute;
    width: 100%;
    height: 100%;
    transform: translate(13.39vw, 0);
    animation: carouselAdmission 1.5s ease-out;
    align-items: center;
}

.carousel-item {
    display: inline-block;
    margin-right: 1.78vw;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.carousel-item-img-wrapper {
    width: 25vw;
    height: 25vw;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.carousel-item-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: var(--transition);
}

.carousel-item:hover .carousel-item-img-wrapper {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.carousel-item-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
    color: #fff;
    padding: 30px 16px 16px;
    opacity: 0;
    transition: var(--transition);
}

.carousel-item:hover .carousel-item-info {
    opacity: 1;
}

/* 初始状态：最后一个元素需要向左偏移 */
.carousel-item.last-item {
    transform: translateX(-160.68vw, 0);
}

.carousel-item-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.carousel-item-subtitle {
    font-size: 13px;
    opacity: 0.9;
}

.carousel-item-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.carousel-item-link-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 轮播图控制按钮 */
.carousel-controls {
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 16px;
    z-index: 10;
    opacity: 0;
    transition: 1s;
}

.carousel-banner:hover .carousel-controls {
    opacity: 1;
    bottom: 5%;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid #333;
    background-color: var(--card-bg);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    transform: scale(1.15);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.carousel-btn:hover .carousel-btn-icon {
    fill: white;
}

.carousel-btn-icon {
    width: 24px;
    height: 24px;
    fill: var(--text-color);
    transition: var(--transition);
}

.carousel-btn-icon.right {
    transform: rotate(180deg);
}

@keyframes carouselAdmission {
    0% {
        transform: translate(140vw, 0);
    }
    100% {
        transform: translate(13.39vw, 0);
    }
}

/* ============ 带封面的文章列表样式 ============ */
.article-item.with-cover {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.article-item.with-cover .article-link-flex {
    display: flex;
    gap: 20px;
    padding: var(--spacing-lg);
    text-decoration: none;
    color: inherit;
    align-items: flex-start;
    overflow: hidden;
}

.article-cover-wrapper {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background-color: var(--hover-color);
    display: block;
    position: relative;
}

.article-cover-wrapper img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    display: block;
}

.article-item:hover .article-cover {
    transform: scale(1.05);
}

.article-item.with-cover .article-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-width: 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .article-item.with-cover .article-link-flex {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        overflow: hidden;
    }

    .article-cover-wrapper {
        width: 100%;
        height: 0;
        padding-top: 60%;
        position: relative;
        overflow: hidden;
    }

    .article-cover {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        display: block;
    }
}