/* ===== 公开静态站点（dist-public）通用样式 =====
   复用 base.css 的色彩变量，页面结构与既有 home.html / theme 系列保持一致的视觉语言。 */
.pub-nav {
    display: flex; align-items: center; gap: 0.75rem; height: 56px; padding: 0 1.25rem;
    background: #fff; border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 50;
}
.pub-nav a { color: var(--color-text); text-decoration: none; }
.pub-nav-brand { font-weight: 700; letter-spacing: 0.02em; }
.pub-nav-links { display: flex; gap: 1.1rem; margin-left: 1.5rem; flex-wrap: wrap; }
.pub-nav-links a { color: var(--color-muted); font-size: 0.92rem; }
.pub-nav-links a.active, .pub-nav-links a:hover { color: var(--color-primary); }
.pub-nav-spacer { flex: 1; }
.pub-nav-search { display: flex; align-items: center; }
.pub-nav-search input {
    padding: 0.4rem 0.7rem; border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.85rem; width: 160px;
}

.pub-page { max-width: 1240px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.pub-hero { text-align: center; margin-bottom: 2.5rem; }
.pub-hero h1 { font-size: 2.2rem; margin: 0 0 0.5rem; }
.pub-hero p { color: var(--color-muted); margin: 0; }

.pub-section-title { font-size: 1.3rem; margin: 2.5rem 0 1rem; display: flex; align-items: baseline; gap: 0.75rem; }
.pub-section-title a { font-size: 0.85rem; color: var(--color-accent); text-decoration: none; }

.pub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1.4rem; }
.pub-card {
    background: #fff; border-radius: 10px; overflow: hidden; text-decoration: none; color: inherit;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06); transition: transform 0.15s, box-shadow 0.15s;
}
.pub-card:hover { transform: translateY(-3px); box-shadow: 0 10px 22px rgba(0,0,0,0.1); }
.pub-card-cover { aspect-ratio: 4/3; background: #e6e6e6 center/cover no-repeat; position: relative; }
.pub-card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pub-card-badge {
    position: absolute; left: 8px; top: 8px; font-size: 10.5px; padding: 2px 8px; border-radius: 999px;
    background: rgba(0,0,0,0.6); color: #fff;
}
.pub-card-body { padding: 0.9rem 1rem 1.1rem; }
.pub-card-title { font-size: 0.98rem; font-weight: 600; margin: 0 0 0.25rem; line-height: 1.4; }
.pub-card-meta { font-size: 0.8rem; color: var(--color-muted); margin: 0; }

.pub-category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.pub-category-card {
    display: block; padding: 1.4rem; background: #fff; border-radius: 10px; text-decoration: none; color: inherit;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.pub-category-card h3 { margin: 0 0 0.35rem; }
.pub-category-card span { color: var(--color-muted); font-size: 0.85rem; }

.pub-empty { text-align: center; padding: 4rem 1rem; color: var(--color-muted); }

.pub-search-panel { max-width: 720px; margin: 0 auto 2rem; }
.pub-search-panel input {
    width: 100%; padding: 0.7rem 1rem; border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.95rem;
}
.pub-filter-chips { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 0.9rem 0 0; }
.pub-filter-chip {
    padding: 0.3rem 0.85rem; border-radius: 999px; border: 1px solid var(--color-border); background: #fff;
    font-size: 0.82rem; cursor: pointer; color: var(--color-text);
}
.pub-filter-chip.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.pub-footer { text-align: center; padding: 2.5rem 1rem; color: var(--color-muted); font-size: 0.85rem; }

.pub-404 { text-align: center; padding: 6rem 1rem; }
.pub-404 h1 { font-size: 3rem; margin: 0; }