/* 蓝调高定视觉体系 */
:root {
    --bg-color: #0c0c0e;
    --card-bg: #16161a;
    --card-hover: #1f1f26;
    --text-main: #f1f1f4;
    --text-muted: #9898a6;
    --accent-color: #3b82f6; /* 科技蓝主色调 */
    --accent-hover: #60a5fa;
    --border-color: rgba(255, 255, 255, 0.08);
    --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
body.dark-theme {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* 顶部导航：Logo 放大，搜索框优化 */
.header-nav {
    background: rgba(12, 12, 14, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container-top {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 12px;
    height: 60px; /* 稍微加高以容纳更大的Logo */
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
}
.logo img {
    height: 36px; /* 手机端调大Logo尺寸 */
    max-width: 160px;
    object-fit: contain;
    display: block;
}
.fallback-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-color);
    align-items: center;
    gap: 4px;
}
.nav-container-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.nav-menu {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    height: 38px;
    align-items: center;
}
.nav-menu::-webkit-scrollbar { display: none; }
.nav-menu a {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    position: relative;
    padding: 4px 0;
    flex-shrink: 0;
}
.nav-menu a.active {
    color: var(--accent-color);
    font-weight: 600;
}
.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* 放大搜索框 */
.search-form {
    display: flex;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    padding: 4px 12px;
    width: 160px; /* 加宽搜索框 */
}
.search-form input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 13px;
    width: 100%;
}
.search-form button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
}

/* 主体容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 10px;
}
.main-content { min-height: 80vh; padding-bottom: 30px; }

/* 首页轮播图 */
.hero-slider { margin: 12px 0 20px; }
.slider-container { padding: 0 10px; }
.slide-item {
    height: 220px;
    border-radius: 12px;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: flex-end;
}
.slide-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(12,12,14,0.95) 10%, rgba(12,12,14,0.1) 70%, transparent 100%);
}
.slide-caption {
    position: relative;
    padding: 14px;
    z-index: 2;
    width: 100%;
}
.badge {
    background: var(--accent-color);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 3px;
    margin-bottom: 6px;
    display: inline-block;
}
.slide-caption h2 a {
    font-size: 15px;
    color: #fff;
    margin-bottom: 4px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.slide-caption p { color: var(--text-muted); font-size: 11px; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.btn-view {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: #fff;
    padding: 4px 12px;
    border-radius: 14px;
    font-size: 11px;
}

/* 板块标题蓝色下划左边框 */
.section-block { margin-top: 24px; }
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border-left: 3px solid var(--accent-color);
    padding-left: 8px;
}
.section-header h3 { font-size: 15px; font-weight: 600; color: #fff; display: flex; align-items: center; gap: 6px; }
.more-link { color: var(--text-muted); font-size: 12px; }

/* 图集网格 */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}
@media (min-width: 768px) {
    .photo-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
}

.photo-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.card-img-wrap {
    position: relative;
    aspect-ratio: 3/4;
    display: block;
    background: #0c0c0e;
}
.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain !important;
}
.count-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--accent-color);
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 4px;
    font-weight: 600;
}
.card-info { padding: 8px; }
.card-info h4 a {
    font-size: 12px;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
    font-size: 10px;
    color: var(--text-muted);
}

/* 面包屑导航 */
.filter-header-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 10px 12px;
    margin-top: 12px;
}
.breadcrumb-warp {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}
.breadcrumb-warp a { color: var(--text-main); }
.breadcrumb-warp .current-cat { color: var(--accent-color); font-weight: 600; }

/* 内容页头部 */
.detail-page .detail-header {
    text-align: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
}
.art-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: #fff; }
.art-meta-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 11px;
    color: var(--text-muted);
}
.highlight-badge { color: var(--accent-color); font-weight: 600; }

/* 内容页单列原图完整展示 */
.photo-single-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}
.single-img-item {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    text-align: center;
    margin-bottom: 16px;
}
.single-img-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain !important;
    background-color: #0c0c0e;
}
.img-number-tag-bottom-left {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(6px);
    color: var(--accent-color);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    z-index: 5;
    font-weight: 600;
}

/* 分页组件 */
.pages-pagination, .mac-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-top: 24px;
    flex-wrap: wrap;
}
.pag-btn, .pages-pagination a {
    padding: 5px 10px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 12px;
}
.pag-btn.disabled { opacity: 0.3; }
.pag-info { color: var(--text-muted); font-size: 12px; margin: 0 4px; }
.pages-pagination a.active, .mac-pagination .active {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
    font-weight: 600;
}

/* 底部版权 */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
}
.footer-links { margin-top: 6px; }
.footer-links a { margin: 0 4px; }