/* 搜索结果卡片组件样式 */

/* 响应式变量定义 */
:root {
    --base-width: 375;
    --u: calc(100vw / var(--base-width));
}

/* < 375px：固定 375 宽 */
@media (max-width: 374px) {
    :root {
        --u: calc(100vw / var(--base-width));
    }
}

/* 375px ~ 1024px：宽度=视口宽度 */
@media (min-width: 375px) and (max-width: 1024px) {
    :root {
        --u: calc(100vw / var(--base-width));
    }
}

/* > 1024px：固定 1024 宽 */
@media (min-width: 1025px) {
    :root {
        --u: calc(1024px / var(--base-width));
    }
}

/* 搜索结果列表 */
.search-results-list {
    display: flex;
    flex-direction: column;
    gap: calc(12 * var(--u));
    padding: calc(8 * var(--u));
}

/* 搜索结果卡片 */
.search-result-card {
    background: white;
    border-radius: calc(16 * var(--u));
    overflow: hidden;
    box-shadow: 0 calc(2 * var(--u)) calc(12 * var(--u)) rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.3s ease;
    border-width: 2px !important;
    border-style: solid !important;
    border-color: #667eea !important;
    display: flex;
    align-items: stretch;
}

/* hover效果移除 */

.search-result-card:active {
    transform: translateY(0);
    box-shadow: 0 calc(2 * var(--u)) calc(8 * var(--u)) rgba(0, 0, 0, 0.1);
}

/* 卡片图片区域 */
.search-card-image {
    position: relative;
    width: calc(80 * var(--u));
    height: calc(90 * var(--u));
    flex-shrink: 0;
    overflow: hidden;
}

.search-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 类型标识徽章 */
.search-card-type-badge {
    position: absolute;
    top: calc(3 * var(--u));
    left: calc(6 * var(--u));
    padding: calc(2 * var(--u)) calc(6 * var(--u));
    border-radius: calc(8 * var(--u));
    font-size: calc(10 * var(--u));
    font-weight: 600;
    color: white;
    text-shadow: 0 calc(1 * var(--u)) calc(2 * var(--u)) rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(calc(4 * var(--u)));
}

.search-card-type-badge.category {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.search-card-type-badge.topic {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* 卡片内容区域 */
.search-card-content {
    flex: 1;
    padding: calc(12 * var(--u)) calc(16 * var(--u));
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: calc(80 * var(--u));
}

/* 卡片标题 */
.search-card-title {
    font-size: calc(16 * var(--u));
    font-weight: 600;
    color: #333;
    margin-bottom: calc(4 * var(--u));
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1; /* 标准属性 */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 卡片副标题 */
.search-card-subtitle {
    font-size: calc(13 * var(--u));
    color: #666;
    margin-bottom: calc(6 * var(--u));
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1; /* 标准属性 */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-card-subtitle:empty {
    display: none;
}

/* 卡片描述 */
.search-card-description {
    font-size: calc(12 * var(--u));
    color: #888;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2; /* 标准属性 */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-card-description:empty {
    display: none;
}

/* 空状态样式 */
.search-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(40 * var(--u)) calc(20 * var(--u));
    text-align: center;
}

.search-empty-icon {
    font-size: calc(48 * var(--u));
    margin-bottom: calc(16 * var(--u));
    opacity: 0.5;
}

.search-empty-title {
    font-size: calc(16 * var(--u));
    font-weight: 600;
    color: #333;
    margin-bottom: calc(8 * var(--u));
}

.search-empty-description {
    font-size: calc(14 * var(--u));
    color: #666;
    line-height: 1.5;
}

/* 加载状态动画 */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.search-result-card.loading {
    pointer-events: none;
}

.search-result-card.loading .search-card-image,
.search-result-card.loading .search-card-title,
.search-result-card.loading .search-card-subtitle,
.search-result-card.loading .search-card-description {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
    border-radius: calc(4 * var(--u));
}

.search-result-card.loading .search-card-title {
    height: calc(16 * var(--u));
    margin-bottom: calc(8 * var(--u));
}

.search-result-card.loading .search-card-subtitle {
    height: calc(12 * var(--u));
    margin-bottom: calc(6 * var(--u));
    width: 80%;
}

.search-result-card.loading .search-card-description {
    height: calc(10 * var(--u));
    width: 60%;
}

/* 响应式调整 */
@media (max-width: 480px) {
    .search-card-image {
        width: calc(70 * var(--u));
        height: calc(80 * var(--u));
    }
    
    .search-card-content {
        padding: calc(10 * var(--u)) calc(12 * var(--u));
        min-height: calc(70 * var(--u));
    }
    
    .search-card-title {
        font-size: calc(15 * var(--u));
    }
    
    .search-card-subtitle {
        font-size: calc(12 * var(--u));
    }
    
    .search-card-description {
        font-size: calc(11 * var(--u));
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .search-result-card {
        background: #2a2a2a;
        border-color: #667eea !important;
    }
    /* 移除深色模式下的hover变化，保持默认边框色 */
    
    .search-card-title {
        color: #fff;
    }
    
    .search-card-subtitle {
        color: #ccc;
    }
    
    .search-card-description {
        color: #aaa;
    }
    
    .search-empty-title {
        color: #fff;
    }
    
    .search-empty-description {
        color: #ccc;
    }
}