/* ========================================
   详情页公共样式
   ======================================== */

.detail-hero {
    padding-top: 96px;
    padding-bottom: var(--space-12);
    background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary-800));
    color: #fff;
    position: relative;
    overflow: hidden;
}

.detail-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.detail-hero .container {
    position: relative;
    z-index: 1;
}

.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    font-size: var(--font-size-sm);
}

.detail-breadcrumb a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.detail-breadcrumb a:hover {
    color: #fff;
}

.detail-breadcrumb .separator {
    color: rgba(255, 255, 255, 0.3);
}

.detail-breadcrumb .current {
    color: rgba(255, 255, 255, 0.9);
}

.detail-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.detail-date {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.detail-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.detail-hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.3;
    max-width: 800px;
}

/* Detail Content */
.detail-content {
    padding: var(--space-16) 0 var(--space-24);
}

.detail-content .container {
    max-width: 800px;
}

.detail-cover {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-10);
}

.detail-cover-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary-100), var(--color-primary-50));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-300);
}

.detail-cover-img svg {
    opacity: 0.6;
}

.detail-cover-img.has-image {
    background: var(--color-neutral-100);
}

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

.detail-body {
    font-size: var(--font-size-base);
    line-height: 2;
    color: var(--color-neutral-700);
}

.detail-body p {
    margin-bottom: var(--space-6);
    text-indent: 2em;
}

.detail-body h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin: var(--space-10) 0 var(--space-4);
    text-indent: 0;
}

.detail-body blockquote {
    border-left: 4px solid var(--color-primary-500);
    background: var(--color-primary-50);
    padding: var(--space-6);
    margin: var(--space-8) 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-primary-800);
    font-weight: 500;
    text-indent: 0;
}

.detail-body ul {
    padding-left: 2em;
    margin-bottom: var(--space-6);
}

.detail-body li {
    margin-bottom: var(--space-2);
    list-style: disc;
    text-indent: 0;
}

/* Image gallery in article */
.detail-body .article-img {
    width: 100%;
    height: 280px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-neutral-100), var(--color-neutral-50));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-neutral-300);
    margin: var(--space-8) 0;
}

/* Detail Tags */
.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-neutral-200);
}

.detail-tag {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    background: var(--color-neutral-100);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
}

/* Back & Related */
.detail-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-neutral-200);
}

.detail-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-600);
    transition: all var(--transition-fast);
}

.detail-back:hover {
    color: var(--color-primary-700);
    transform: translateX(-4px);
}

/* Activity specific */
.activity-detail-hero {
    padding-top: 96px;
    padding-bottom: var(--space-12);
    background: linear-gradient(135deg, var(--color-primary-800), var(--color-primary-700));
    color: #fff;
    position: relative;
    overflow: hidden;
}

.activity-detail-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.activity-detail-hero .container {
    position: relative;
    z-index: 1;
}

.activity-info-bar {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-6);
    flex-wrap: wrap;
}

.activity-info-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

.activity-info-item svg {
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .detail-hero-title {
        font-size: var(--font-size-2xl);
    }

    .detail-cover {
        height: 240px;
    }

    .detail-body .article-img {
        height: 200px;
    }

    .detail-nav {
        flex-direction: column;
        gap: var(--space-4);
    }

    .activity-info-bar {
        gap: var(--space-4);
    }
}