/* ============================================
   杨昭个人站 v3 · 朴素简约 · 大量留白
   ============================================ */

/* --- Reset --- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; scroll-behavior:smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: #fafaf9;
    color: #292524;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration:none; }
img { max-width:100%; height:auto; display:block; }

/* --- Navigation --- */
.navbar {
    position: sticky; top:0; z-index:100;
    background: #fafaf9;
    border-bottom: 1px solid #e7e5e4;
}
.nav-inner {
    max-width: 960px; margin:0 auto; padding: 0 2rem;
    display:flex; align-items:center; justify-content:space-between;
    height: 56px;
}
.nav-logo {
    font-size: 1rem; font-weight: 700;
    color: #292524; letter-spacing: 1px;
}
.nav-links { display:flex; gap: 2rem; }
.nav-link {
    font-size: 0.9rem; color: #78716c;
    padding: 0.25rem 0; border-bottom: 1.5px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}
.nav-link:hover { color: #292524; }
.nav-link.active { color: #292524; border-bottom-color: #292524; }

/* --- Main --- */
.main {
    max-width: 960px; margin:0 auto; padding: 3.5rem 2rem 5rem;
    min-height: 70vh;
}

/* --- Footer --- */
.site-footer {
    text-align: center; padding: 1.75rem 2rem;
    color: #a8a29e; font-size: 0.8rem;
    border-top: 1px solid #e7e5e4;
}

/* --- Hero (Home) --- */
.hero {
    padding: 1rem 0 2.5rem;
}
.hero h1 {
    font-size: 2rem; font-weight: 800; line-height: 1.3;
    margin-bottom: 0.75rem; letter-spacing: -0.5px;
}
.hero h1 .name {
    display: block; font-size: 1.5rem; font-weight: 500; color: #78716c;
    margin-bottom: 0.25rem;
}
.hero p.lead {
    font-size: 1.05rem; color: #57534e; max-width: 520px; line-height: 1.9;
    margin-bottom: 1.75rem;
}

/* --- Section --- */
.section { margin-bottom: 3rem; }
.section:last-child { margin-bottom: 0; }
.section-header {
    margin-bottom: 1.25rem; padding-bottom: 0.6rem;
    border-bottom: 1px solid #e7e5e4;
}
.section-label {
    font-size: 0.75rem; font-weight: 600; letter-spacing: 2px;
    color: #a8a29e; text-transform: uppercase; margin-bottom: 0.35rem;
}
.section-title {
    font-size: 1.3rem; font-weight: 700; color: #292524;
}

/* --- Post List (codingnow 风格平铺) --- */
.card-list { display:flex; flex-direction:column; }
.post-item {
    padding: 1.4rem 0;
    border-bottom: 1px solid #e7e5e4;
}
.post-item:first-child { padding-top: 0.5rem; }
.post-item-title { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; line-height: 1.5; }
.post-item-title a { color: #292524; }
.post-item-title a:hover { color: #78716c; }
.post-preview {
    font-size: 0.95rem; color: #57534e; line-height: 1.85;
    margin-bottom: 0.5rem;
}
.post-item-meta {
    font-size: 0.8rem; color: #a8a29e;
    display:flex; align-items:center; gap: 0.75rem; flex-wrap:wrap;
}
.post-item-meta .read-more { color: #a8a29e; }
.post-item-meta .read-more:hover { color: #292524; }

/* --- Page Header --- */
.page-header { margin-bottom: 2rem; }
.page-title { font-size: 1.6rem; font-weight: 700; color: #292524; margin-bottom: 0.35rem; }
.page-desc { font-size: 0.95rem; color: #78716c; }

/* --- Blog Detail --- */
.blog-detail { max-width: 680px; }
.blog-detail h2 { font-size: 1.25rem; font-weight: 700; margin: 2.5rem 0 1rem; color: #292524; }
.blog-detail h3 { font-size: 1.05rem; font-weight: 600; margin: 1.5rem 0 0.75rem; }
.blog-detail p { margin-bottom: 1rem; font-size: 1rem; line-height: 1.95; }
.blog-detail ul, .blog-detail ol { margin: 0.75rem 0 1rem 1.5rem; }
.blog-detail li { margin-bottom: 0.35rem; }
.blog-detail blockquote {
    border-left: 2px solid #d6d3d1; padding: 0.5rem 1rem;
    margin: 1.5rem 0; color: #78716c; font-style: italic;
}
.blog-detail code {
    background: #f0efed; padding: 0.1rem 0.4rem; border-radius: 3px;
    font-size: 0.9em; font-family: "SF Mono", Consolas, monospace;
}
.blog-detail pre {
    background: #f5f5f4; padding: 1.25rem; border-radius: 6px;
    overflow-x: auto; margin: 1rem 0; font-size: 0.85rem; line-height: 1.7;
    border: 1px solid #e7e5e4;
}
.blog-detail pre code { background:none; padding:0; border:none; }

.blog-meta {
    display:flex; gap:1rem; align-items:center; flex-wrap:wrap;
    font-size: 0.85rem; color: #a8a29e;
    margin-bottom: 1.75rem; padding-bottom: 1rem;
    border-bottom: 1px solid #e7e5e4;
}

.back-link {
    display: inline-block; margin-top: 3rem;
    font-size: 0.9rem; color: #a8a29e;
    transition: color 0.2s;
}
.back-link:hover { color: #292524; }

/* --- 上一篇 / 下一篇导航 --- */
.post-nav {
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 2rem; margin: 2.5rem 0 0.5rem; padding-top: 1.25rem;
    border-top: 1px solid #e7e5e4;
}
.post-nav-link {
    flex: 1; min-width: 0; font-size: 0.92rem; line-height: 1.7;
    color: #292524; font-weight: 600; text-decoration: none;
    transition: color 0.2s;
}
.post-nav-link:hover { color: #78716c; text-decoration: underline; text-underline-offset: 3px; }
.post-nav-link strong {
    display: block; font-size: 0.78rem; color: #a8a29e;
    font-weight: 400; margin-bottom: 0.15rem;
}
.post-nav-next { text-align: right; margin-left: auto; }
.post-nav-empty { visibility: hidden; }

/* --- Portfolio Grid --- */
.portfolio-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}
.portfolio-card {
    display:block; border: 1px solid #e7e5e4; border-radius: 6px;
    overflow: hidden; transition: border-color 0.2s;
    background: #fff;
}
.portfolio-card:hover { border-color: #d6d3d1; }
.portfolio-card-image {
    height: 180px; background: #f5f5f4;
    display:flex; align-items:center; justify-content:center;
    font-size: 3rem; color: #d6d3d1;
}
.portfolio-card-body { padding: 1.25rem; }
.portfolio-card-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.35rem; color: #292524; }
.portfolio-card-body p { font-size: 0.85rem; color: #78716c; line-height: 1.6; }
.portfolio-card-body .tags { display:flex; gap:0.4rem; flex-wrap:wrap; margin-top:0.6rem; }
.portfolio-card-body .tag {
    font-size: 0.72rem; color: #a8a29e; background: #f5f5f4;
    padding: 0.1rem 0.5rem; border-radius: 3px;
}

/* --- Portfolio Detail --- */
.portfolio-detail { max-width: 720px; }
.portfolio-detail h2 { font-size: 1.15rem; font-weight: 700; margin: 2rem 0 0.75rem; }
.portfolio-detail p { margin-bottom: 0.75rem; line-height: 1.8; }
.portfolio-detail .link-bar { display:flex; gap:1rem; flex-wrap:wrap; margin: 1.5rem 0; }
.portfolio-detail .link-bar a {
    font-size: 0.85rem; color: #78716c; border: 1px solid #d6d3d1;
    padding: 0.4rem 0.9rem; border-radius: 4px;
    transition: all 0.2s;
}
.portfolio-detail .link-bar a:hover { color: #292524; border-color: #a8a29e; }

/* --- Photo Wall --- */
.photo-wall {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
}
.photo-cell {
    position:relative; overflow:hidden; border-radius: 4px;
    aspect-ratio: 4/3; background: #f5f5f4;
}
.photo-cell img {
    width:100%; height:100%; object-fit: cover;
    transition: transform 0.4s;
}
.photo-cell:hover img { transform: scale(1.03); }
.photo-placeholder {
    width:100%; height:100%;
    display:flex; align-items:center; justify-content:center;
    font-size: 2rem; color: #d6d3d1;
}
.photo-cell-info {
    position:absolute; bottom:0; left:0; right:0;
    padding: 1.5rem 1rem 0.75rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.5));
    color: #fff; opacity: 0; transition: opacity 0.3s;
}
.photo-cell:hover .photo-cell-info { opacity: 1; }
.photo-cell-info h3 { font-size: 0.9rem; font-weight: 600; }
.photo-cell-info .photo-cell-loc { font-size: 0.75rem; opacity: 0.8; }

/* --- Photo Detail --- */
.photo-detail { max-width: 960px; }
.photo-main { margin-bottom: 2rem; }
.photo-main img { width:100%; max-height:85vh; object-fit:contain; border-radius: 4px; background:#fafaf9; }
.photo-text { max-width: 600px; font-size: 0.95rem; color: #57534e; line-height: 1.8; }

/* --- Stats --- */
.stats {
    display:flex; gap: 2.5rem;
    padding: 1.25rem 0;
    border-top: 1px solid #e7e5e4;
    border-bottom: 1px solid #e7e5e4;
}
.stat { display:flex; flex-direction:column; align-items:center; gap: 0.15rem; }
.stat-num { font-size: 1.5rem; font-weight: 800; color: #292524; letter-spacing: -0.5px; }
.stat-label { font-size: 0.75rem; color: #a8a29e; }

/* --- Category Tabs --- */
.cat-tabs {
    display:flex; gap: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #e7e5e4;
}
.cat-tab {
    font-size: 0.9rem; color: #a8a29e;
    padding: 0.35rem 0.1rem; border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}
.cat-tab:hover { color: #292524; }
.cat-tab.active { color: #292524; border-bottom-color: #292524; }

/* --- Chips --- */
.chip-list { display:flex; flex-wrap:wrap; gap: 0.6rem; }
.chip {
    display:inline-block; font-size: 0.85rem; color: #57534e;
    border: 1px solid #e7e5e4; border-radius: 100px;
    padding: 0.35rem 1rem; background: #fff;
    transition: all 0.2s;
}
.chip:hover { border-color: #a8a29e; color: #292524; }

/* --- Month Group --- */
.month-group { margin-bottom: 2rem; }
.month-group:last-child { margin-bottom: 0; }
.month-title {
    font-size: 0.85rem; font-weight: 700; color: #a8a29e;
    letter-spacing: 1px; margin-bottom: 0.75rem;
}

/* --- Category Badge --- */
.cat-badge {
    font-size: 0.72rem; color: #a8a29e;
    border: 1px solid #e7e5e4; border-radius: 3px;
    padding: 0.05rem 0.45rem;
}

/* --- ICP --- */
.icp { margin-top: 0.35rem; }
.icp a { color: #a8a29e; }
.icp a:hover { color: #78716c; }

/* --- Empty State --- */
.empty-state { text-align:center; padding: 5rem 1rem; }
.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.05rem; font-weight: 600; color: #57534e; margin-bottom: 0.5rem; }
.empty-state p { font-size: 0.9rem; color: #a8a29e; }

/* --- Contact --- */
.contact-grid {
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}
.contact-info { display:flex; flex-direction:column; }
.contact-card { margin-bottom: 1rem; }
.contact-item {
    display:flex; align-items:flex-start; gap: 0.75rem;
    margin-bottom: 1rem;
}
.contact-item .icon { font-size: 1.2rem; line-height: 1.6; }
.contact-item .label { font-size: 0.85rem; color: #a8a29e; margin-bottom: 0.15rem; }
.contact-item a { color: #57534e; font-size: 0.95rem; }
.contact-item a:hover { color: #292524; }

.guestbook-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; }
.guestbook-form { margin-bottom: 2rem; }
.form-group { margin-bottom: 0.75rem; }
.form-group input, .form-group textarea {
    width: 100%; padding: 0.6rem 0.85rem;
    background: #fff; border: 1px solid #e7e5e4; border-radius: 4px;
    font-size: 0.9rem; font-family: inherit; color: #292524;
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: #a8a29e;
}
.form-group textarea { resize: vertical; min-height: 80px; }
.btn-submit {
    padding: 0.5rem 1.5rem; border-radius: 4px;
    background: #292524; color: #fff;
    border: none; font-size: 0.875rem; cursor: pointer;
    transition: opacity 0.2s;
}
.btn-submit:hover { opacity: 0.85; }

.guestbook-entries { display:flex; flex-direction:column; gap: 0.75rem; }
.guestbook-entry {
    border: 1px solid #e7e5e4; border-radius: 4px;
    padding: 0.9rem 1rem; background: #fff;
}
.guestbook-entry-name { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.2rem; }
.guestbook-entry-msg { font-size: 0.875rem; color: #57534e; }
.guestbook-entry-time { font-size: 0.72rem; color: #a8a29e; margin-top: 0.25rem; }

/* --- Utility --- */
.text-muted { color: #78716c; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }

/* --- Home Layout (双栏) --- */
.home-layout { display:flex; gap: 3rem; }
.home-content { flex:1; min-width:0; }
.sidebar { width: 200px; flex-shrink:0; }

.sidebar-widget { margin-bottom: 2rem; }
.sidebar-widget:last-child { margin-bottom: 0; }
.widget-title {
    font-size: 0.82rem; font-weight: 700; color: #292524;
    margin-bottom: 0.75rem; padding-bottom: 0.5rem;
    border-bottom: 1px solid #e7e5e4;
}

/* sidebar stats 紧凑版：3 列网格，避免多统计项挤一行 */
.sidebar .stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem 0.5rem;
    padding: 0;
    border: none;
}
.sidebar .stat { flex-direction: column; gap: 0.1rem; }
.sidebar .stat-num { font-size: 1.1rem; }
.sidebar .stat-label { font-size: 0.72rem; text-align: center; }

/* sidebar chip 紧凑 */
.sidebar .chip { font-size: 0.8rem; padding: 0.25rem 0.8rem; }
.sidebar .chip-list { }

/* sidebar 归档：按年份分组，月份展示文章数 */
.archive-year { margin-bottom: 0.7rem; }
.archive-year:last-child { margin-bottom: 0; }
.archive-year-title {
    font-size: 0.82rem; font-weight: 700; color: #44403c;
    cursor: pointer; user-select: none;
    padding: 0.15rem 0; margin-bottom: 0.25rem;
    display: flex; align-items: center; gap: 0.3rem;
}
.archive-year-title::before { content: '▾'; font-size: 0.7rem; color: #a8a29e; }
.archive-year.collapsed .archive-year-title::before { content: '▸'; }
.archive-year.collapsed .archive-months { display: none; }
.archive-months {
    display: flex; flex-direction: column; gap: 0.15rem;
    padding-left: 0.85rem; margin-left: 0.25rem;
    border-left: 1px solid #e7e5e4;
}
.archive-month {
    font-size: 0.8rem; color: #57534e; text-decoration: none;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.18rem 0.3rem; border-radius: 4px;
}
.archive-month:hover { background: #f5f5f4; color: #292524; }
.archive-count {
    font-size: 0.7rem; color: #a8a29e; background: #f5f5f4;
    border-radius: 8px; padding: 0 0.45rem; line-height: 1.4;
}

/* 移动端：侧栏移到下方 */
@media (max-width: 640px) {
    .home-layout { flex-direction:column; gap: 2rem; }
    .sidebar { width:100%; }
    .sidebar .stats { grid-template-columns: repeat(3, 1fr); }
}

/* --- Responsive --- */
@media (max-width: 640px) {
    .nav-inner { padding: 0 1rem; }
    .nav-links { gap: 1.25rem; }
    .main { padding: 2.5rem 1rem 4rem; }
    .hero { padding: 0.5rem 0 1.5rem; }
    .hero h1 { font-size: 1.6rem; }
    .hero h1 .name { font-size: 1.2rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .photo-wall { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
    .blog-detail { font-size: 0.95rem; }
    .page-title { font-size: 1.3rem; }
}

/* --- 公众号二维码 --- */
.wechat-name { font-size: 0.95rem; color: #292524; font-weight: 600; }
.wechat-qr {
    margin: 1.25rem 0 0.5rem; padding: 1rem;
    border: 1px solid #e7e5e4; border-radius: 8px;
    background: #fff; text-align: center; max-width: 220px;
}
.wechat-qr img { width: 100%; height: auto; border-radius: 4px; display: block; }
.wechat-qr p { margin-top: 0.6rem; font-size: 0.8rem; color: #a8a29e; }
.qr-grid {
    display: flex; flex-wrap: wrap; gap: 1rem; margin: 1.25rem 0 0.5rem;
}
.qr-item {
    flex: 1; min-width: 130px; max-width: 160px;
    padding: 0.75rem; border: 1px solid #e7e5e4; border-radius: 8px;
    background: #fff; text-align: center;
}
.qr-item img { width: 100%; height: auto; border-radius: 4px; display: block; }
.qr-item p { margin-top: 0.5rem; font-size: 0.75rem; color: #a8a29e; }

/* --- 专辑（首页侧边栏卡片） --- */
.album-home-list { display: flex; flex-direction: column; gap: 0.5rem; }
.album-home-card {
    display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
    padding: 0.5rem 0.7rem;
    background: #fff; border: 1px solid #e7e5e4; border-radius: 6px;
    transition: all 0.2s;
}
.album-home-card:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.album-home-info { flex: 1; min-width: 0; }
.album-home-title { font-size: 0.88rem; font-weight: 600; color: #1c1917; line-height: 1.4; }
.album-home-ongoing {
    display: inline-block; font-size: 0.62rem; color: #fff;
    background: var(--accent); border-radius: 100px; padding: 0.02rem 0.45rem;
    vertical-align: middle; margin-left: 0.3rem; letter-spacing: 1px;
}
.album-home-meta { font-size: 0.72rem; color: #a8a29e; margin-top: 0.05rem; }
.album-home-arrow { color: #d6d3d1; font-size: 0.9rem; transition: all 0.2s; }
.album-home-card:hover .album-home-arrow { color: var(--accent); transform: translateX(3px); }
.album-home-video-icon {
    flex-shrink: 0; width: 1.6rem; height: 1.6rem; border-radius: 50%;
    background: var(--soft); color: var(--accent);
    display: flex; align-items: center; justify-content: center;
}

/* --- 专辑（索引页） --- */
.album-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}
.album-card {
    display: flex; flex-direction: column;
    border: 1px solid #e7e5e4; border-radius: 8px; overflow: hidden;
    background: #fff; transition: all 0.25s;
}
.album-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.album-card-head {
    height: 110px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--soft) 0%, #ffffff 80%);
    border-bottom: 1px solid #f0efed;
}
.album-card-icon { font-size: 2.6rem; }
.album-card-body { padding: 1.25rem 1.3rem 1.4rem; display: flex; flex-direction: column; flex: 1; }
.album-card-body h3 { font-size: 1.05rem; font-weight: 700; color: #1c1917; margin-bottom: 0.3rem; }
.album-card-ongoing {
    display: inline-block; font-size: 0.68rem; color: #fff;
    background: var(--accent); border-radius: 100px; padding: 0.05rem 0.5rem;
    vertical-align: middle; margin-left: 0.3rem; letter-spacing: 1px;
}
.album-card-meta { font-size: 0.78rem; color: var(--accent); font-weight: 600; margin-bottom: 0.6rem; }
.album-card-desc { font-size: 0.85rem; color: #78716c; line-height: 1.75; flex: 1; }
.album-card-enter { margin-top: 0.9rem; font-size: 0.85rem; color: #292524; font-weight: 600; }
.album-card:hover .album-card-enter { color: var(--accent); }

@media (max-width: 640px) {
    .album-grid { grid-template-columns: 1fr; }
}

/* --- 分页 --- */
.pagination {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: 0.5rem; margin-top: 2.5rem; padding-top: 1.5rem;
    border-top: 1px solid #e7e5e4;
}
.pagination .page-btn, .pagination .page-num {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 2.25rem; height: 2.25rem; padding: 0 0.75rem;
    border-radius: 0.5rem; font-size: 0.9rem; color: #57534e;
    background: #fafaf9; border: 1px solid #e7e5e4;
    text-decoration: none; transition: all 0.15s;
}
.pagination .page-btn:hover, .pagination .page-num:hover {
    background: #f5f5f4; border-color: #d6d3d1; color: #292524;
}
.pagination .page-num.active {
    background: #292524; color: #fff; border-color: #292524; font-weight: 600;
}
.pagination .page-btn.disabled {
    color: #d6d3d1; background: #fafaf9; cursor: not-allowed; pointer-events: none;
}
.pagination .page-ellipsis { color: #a8a29e; padding: 0 0.25rem; }

/* ============================================
   主题配色 v2 · 暖橙点缀（告别全灰，保持简约）
   ============================================ */
:root {
    --accent: #d97706;        /* 主色：琥珀暖橙 */
    --accent-deep: #b45309;   /* 主色深（文字/强调） */
    --accent-soft: #fffbeb;   /* 主色浅底 */
    --accent-border: #fcd34d; /* 主色浅边 */
}
body { background: #fcfbf9; }

/* 导航 */
.nav-logo { color: var(--accent-deep); }
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--accent-deep); border-bottom-color: var(--accent); }

/* 标题：左侧主色竖条装饰 */
.section-title { color: #1c1917; }
.section-title::before,
.page-title::before,
.widget-title::before {
    content: ''; display: inline-block;
    width: 4px; height: 1.05em; border-radius: 2px;
    background: var(--accent); margin-right: 0.55rem;
    vertical-align: -0.12em;
}
.widget-title { display: flex; align-items: center; }
.page-title { color: #1c1917; }

/* 文章卡片 */
.post-item-title a:hover { color: var(--accent); }
.post-item-meta .read-more:hover { color: var(--accent-deep); }

/* 统计数字 */
.stat-num { color: var(--accent-deep); }

/* 分类 tab / 徽标 / chip */
.cat-tab:hover { color: var(--accent-deep); }
.cat-tab.active { color: var(--accent-deep); border-bottom-color: var(--accent); }
.cat-badge {
    color: var(--accent-deep);
    border-color: var(--accent-border);
    background: var(--accent-soft);
}
.chip:hover { border-color: var(--accent); color: var(--accent-deep); }

/* 归档 */
.archive-month:hover { background: var(--accent-soft); color: var(--accent-deep); }
.archive-year-title::before { color: var(--accent); }

/* 分页 */
.pagination .page-num.active { background: var(--accent-deep); border-color: var(--accent-deep); }

/* 按钮 / 表单焦点 */
.btn-submit { background: var(--accent-deep); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }

/* 文章详情 */
.blog-detail blockquote { border-left-color: var(--accent); }
.back-link:hover { color: var(--accent-deep); }
.post-nav-link:hover { color: var(--accent); }

/* 作品卡片 */
.portfolio-card:hover { border-color: var(--accent); }
.portfolio-card-body .tag { color: #78716c; }

/* ============================================
   主题系统 v3 · 暗黑模式（data-theme="dark"）
   ============================================ */
:root {
    --bg: #fcfbf9;
    --surface: #ffffff;
    --surface-2: #f5f5f4;
    --surface-3: #f0efed;
    --text: #292524;
    --text-deep: #1c1917;
    --text-2: #57534e;
    --text-3: #78716c;
    --text-4: #a8a29e;
    --border: #e7e5e4;
    --border-2: #d6d3d1;
    --accent: #d97706;
    --accent-deep: #b45309;
    --accent-soft: #fffbeb;
    --accent-border: #fcd34d;
    --shadow: rgba(0,0,0,0.06);
}

[data-theme="dark"] {
    --bg: #0e0e10;
    --surface: #17171a;
    --surface-2: #1f1f23;
    --surface-3: #26262b;
    --text: #e8e6e3;
    --text-deep: #f5f4f2;
    --text-2: #b5b2ad;
    --text-3: #8a8782;
    --text-4: #6b6863;
    --border: #2a2a2e;
    --border-2: #3a3a3f;
    --accent: #f59e0b;
    --accent-deep: #fbbf24;
    --accent-soft: #231c0e;
    --accent-border: #5c4512;
    --shadow: rgba(0,0,0,0.45);
}

/* 基础层：背景 / 文字 / 边框 */
[data-theme="dark"] body {
    background: var(--bg);
    color: var(--text);
    transition: background-color 0.3s ease, color 0.3s ease;
}
[data-theme="dark"] .navbar {
    background: var(--bg);
    border-bottom-color: var(--border);
}
[data-theme="dark"] .nav-logo { color: var(--accent); }
[data-theme="dark"] .nav-link { color: var(--text-3); }
[data-theme="dark"] .nav-link:hover { color: var(--accent); }
[data-theme="dark"] .nav-link.active { color: var(--accent-deep); border-bottom-color: var(--accent); }
[data-theme="dark"] .site-footer { border-top-color: var(--border); color: var(--text-4); }

/* 首页 / 区块 */
[data-theme="dark"] .hero h1 { color: var(--text-deep); }
[data-theme="dark"] .hero h1 .name { color: var(--text-3); }
[data-theme="dark"] .hero p.lead { color: var(--text-2); }
[data-theme="dark"] .section-header { border-bottom-color: var(--border); }
[data-theme="dark"] .section-title { color: var(--text-deep); }
[data-theme="dark"] .section-label { color: var(--text-4); }
[data-theme="dark"] .page-title { color: var(--text-deep); }
[data-theme="dark"] .page-desc { color: var(--text-3); }

/* 文章卡片列表 */
[data-theme="dark"] .post-item { border-bottom-color: var(--border); }
[data-theme="dark"] .post-item-title a { color: var(--text-deep); }
[data-theme="dark"] .post-item-title a:hover { color: var(--accent); }
[data-theme="dark"] .post-preview { color: var(--text-2); }
[data-theme="dark"] .post-item-meta { color: var(--text-4); }
[data-theme="dark"] .post-item-meta .read-more { color: var(--text-4); }
[data-theme="dark"] .post-item-meta .read-more:hover { color: var(--accent-deep); }

/* 文章详情页（含文章页内联样式的覆盖） */
[data-theme="dark"] .blog-detail h2,
[data-theme="dark"] .blog-detail-body h2 { color: var(--text-deep) !important; border-left-color: var(--accent) !important; }
[data-theme="dark"] .blog-detail h3,
[data-theme="dark"] .blog-detail-body h3 { color: var(--text) !important; }
[data-theme="dark"] .blog-detail-body ul, [data-theme="dark"] .blog-detail-body ol,
[data-theme="dark"] .blog-detail ul, [data-theme="dark"] .blog-detail ol { color: var(--text-2) !important; }
[data-theme="dark"] .blog-detail blockquote { border-left-color: var(--accent); color: var(--text-3); }
[data-theme="dark"] .blog-detail code { background: var(--surface-3); }
[data-theme="dark"] .blog-detail pre { background: var(--surface-2); border-color: var(--border); }
[data-theme="dark"] .blog-meta { border-bottom-color: var(--border); color: var(--text-4); }
[data-theme="dark"] .back-link { color: var(--text-4); }
[data-theme="dark"] .back-link:hover { color: var(--accent-deep); }
[data-theme="dark"] .post-nav { border-top-color: var(--border); }
[data-theme="dark"] .post-nav-link { color: var(--text-deep); }
[data-theme="dark"] .post-nav-link:hover { color: var(--accent); }
[data-theme="dark"] .post-nav-link strong { color: var(--text-4); }
[data-theme="dark"] .tip-box {
    background: var(--surface-2) !important;
    border-left-color: var(--border-2) !important;
    color: var(--text-2) !important;
}
[data-theme="dark"] .tip-box strong { color: var(--text-deep) !important; }
[data-theme="dark"] .blog-detail-body table, [data-theme="dark"] .blog-detail table { color: var(--text-2); }

/* 作品卡片 */
[data-theme="dark"] .portfolio-card { background: var(--surface); border-color: var(--border); }
[data-theme="dark"] .portfolio-card:hover { border-color: var(--accent); }
[data-theme="dark"] .portfolio-card-image { background: var(--surface-2); color: var(--border-2); }
[data-theme="dark"] .portfolio-card-body h3 { color: var(--text-deep); }
[data-theme="dark"] .portfolio-card-body p { color: var(--text-3); }
[data-theme="dark"] .portfolio-card-body .tag { background: var(--surface-2); color: var(--text-3); }
[data-theme="dark"] .portfolio-detail .link-bar a { color: var(--text-3); border-color: var(--border-2); }
[data-theme="dark"] .portfolio-detail .link-bar a:hover { color: var(--text-deep); border-color: var(--text-4); }

/* 摄影 */
[data-theme="dark"] .photo-cell { background: var(--surface-2); }
[data-theme="dark"] .photo-placeholder { color: var(--border-2); }
[data-theme="dark"] .photo-main img { background: var(--surface); }
[data-theme="dark"] .photo-text { color: var(--text-2); }

/* 统计 / 分类 tab / 徽标 / chip */
[data-theme="dark"] .stats { border-top-color: var(--border); border-bottom-color: var(--border); }
[data-theme="dark"] .stat-num { color: var(--accent-deep); }
[data-theme="dark"] .stat-label { color: var(--text-4); }
[data-theme="dark"] .cat-tabs { border-bottom-color: var(--border); }
[data-theme="dark"] .cat-tab { color: var(--text-4); }
[data-theme="dark"] .cat-tab:hover { color: var(--accent-deep); }
[data-theme="dark"] .cat-tab.active { color: var(--accent-deep); border-bottom-color: var(--accent); }
[data-theme="dark"] .cat-badge { color: var(--accent-deep); border-color: var(--accent-border); background: var(--accent-soft); }
[data-theme="dark"] .chip { color: var(--text-2); border-color: var(--border); background: var(--surface); }
[data-theme="dark"] .chip:hover { border-color: var(--accent); color: var(--accent-deep); }

/* 归档 */
[data-theme="dark"] .month-title { color: var(--text-4); }
[data-theme="dark"] .archive-year-title { color: var(--text-2); }
[data-theme="dark"] .archive-months { border-left-color: var(--border); }
[data-theme="dark"] .archive-month { color: var(--text-2); }
[data-theme="dark"] .archive-month:hover { background: var(--accent-soft); color: var(--accent-deep); }
[data-theme="dark"] .archive-count { background: var(--surface-2); color: var(--text-4); }

/* 分页 */
[data-theme="dark"] .pagination { border-top-color: var(--border); }
[data-theme="dark"] .pagination .page-btn, [data-theme="dark"] .pagination .page-num {
    color: var(--text-2); background: var(--surface); border-color: var(--border);
}
[data-theme="dark"] .pagination .page-btn:hover, [data-theme="dark"] .pagination .page-num:hover {
    background: var(--surface-2); border-color: var(--border-2); color: var(--text-deep);
}
[data-theme="dark"] .pagination .page-num.active { background: var(--accent-deep); border-color: var(--accent-deep); color: #1c1917; }
[data-theme="dark"] .pagination .page-btn.disabled { color: var(--border-2); background: var(--surface); }

/* 联系页 */
[data-theme="dark"] .contact-item .label { color: var(--text-4); }
[data-theme="dark"] .contact-item a { color: var(--text-2); }
[data-theme="dark"] .contact-item a:hover { color: var(--accent-deep); }
[data-theme="dark"] .form-group input, [data-theme="dark"] .form-group textarea {
    background: var(--surface); border-color: var(--border); color: var(--text);
}
[data-theme="dark"] .form-group input:focus, [data-theme="dark"] .form-group textarea:focus { border-color: var(--accent); }
[data-theme="dark"] .btn-submit { background: var(--accent-deep); color: #1c1917; }
[data-theme="dark"] .guestbook-entry { border-color: var(--border); background: var(--surface); }
[data-theme="dark"] .guestbook-entry-msg { color: var(--text-2); }
[data-theme="dark"] .guestbook-entry-time { color: var(--text-4); }

/* 公众号二维码 */
[data-theme="dark"] .wechat-qr { border-color: var(--border); background: var(--surface); }
[data-theme="dark"] .wechat-qr p { color: var(--text-4); }
[data-theme="dark"] .qr-item { border-color: var(--border); background: var(--surface); }
[data-theme="dark"] .qr-item p { color: var(--text-4); }
[data-theme="dark"] .wechat-name { color: var(--text-deep); }

/* 专辑 */
[data-theme="dark"] .album-home-card { background: var(--surface); border-color: var(--border); }
[data-theme="dark"] .album-home-card:hover { box-shadow: 0 2px 10px var(--shadow); }
[data-theme="dark"] .album-home-title { color: var(--text-deep); }
[data-theme="dark"] .album-home-meta { color: var(--text-4); }
[data-theme="dark"] .album-home-arrow { color: var(--border-2); }
[data-theme="dark"] .album-card { background: var(--surface); border-color: var(--border); }
[data-theme="dark"] .album-card:hover { box-shadow: 0 8px 24px var(--shadow); }
[data-theme="dark"] .album-card-head {
    background: linear-gradient(135deg, var(--accent-soft) 0%, var(--surface) 80%);
    border-bottom-color: var(--border);
}
[data-theme="dark"] .album-card-body h3 { color: var(--text-deep); }
[data-theme="dark"] .album-card-desc { color: var(--text-3); }
[data-theme="dark"] .album-card-enter { color: var(--text-deep); }

/* 工具类 */
[data-theme="dark"] .text-muted { color: var(--text-3); }
[data-theme="dark"] .empty-state h3 { color: var(--text-2); }
[data-theme="dark"] .empty-state p { color: var(--text-4); }
[data-theme="dark"] .icp a { color: var(--text-4); }
[data-theme="dark"] .icp a:hover { color: var(--text-3); }

/* 侧边栏 */
[data-theme="dark"] .widget-title { color: var(--text-deep); border-bottom-color: var(--border); }

/* 暗黑模式下图片柔和化（照片/封面除外） */
[data-theme="dark"] .blog-detail-body img,
[data-theme="dark"] .portfolio-card img { opacity: 0.92; }

/* ============================================
   导航操作区（主题切换 + 搜索）
   ============================================ */
.nav-actions {
    display: flex; align-items: center; gap: 0.35rem;
    margin-left: 1.25rem;
}
.nav-icon-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 2rem; height: 2rem; border-radius: 6px;
    background: transparent; border: 1px solid transparent;
    font-size: 1rem; line-height: 1; cursor: pointer;
    color: var(--text-3);
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    text-decoration: none;
}
.nav-icon-btn:hover {
    background: var(--surface-2); color: var(--text-deep);
    border-color: var(--border);
}
#theme-toggle { font-size: 0.95rem; }
@media (max-width: 640px) {
    .nav-actions { margin-left: 0.6rem; gap: 0.15rem; }
    .nav-icon-btn { width: 1.8rem; height: 1.8rem; font-size: 0.9rem; }
}

/* ============================================
   搜索页
   ============================================ */
.search-wrap { max-width: 680px; }
.search-box {
    position: relative; margin-bottom: 2rem;
}
.search-box input {
    width: 100%; padding: 0.85rem 1rem 0.85rem 2.75rem;
    background: var(--surface); border: 1px solid var(--border-2);
    border-radius: 8px; font-size: 1.05rem; font-family: inherit;
    color: var(--text); transition: border-color 0.2s, box-shadow 0.2s;
}
.search-box input:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.search-box .search-icon {
    position: absolute; left: 0.9rem; top: 50%; transform: translateY(-50%);
    font-size: 1.1rem; color: var(--text-4); pointer-events: none;
}
.search-box .search-clear {
    position: absolute; right: 0.6rem; top: 50%; transform: translateY(-50%);
    border: none; background: var(--surface-2); color: var(--text-3);
    width: 1.6rem; height: 1.6rem; border-radius: 50%;
    font-size: 0.9rem; cursor: pointer; display: none;
    align-items: center; justify-content: center;
}
.search-box .search-clear:hover { color: var(--text-deep); }
.search-stats { font-size: 0.85rem; color: var(--text-4); margin-bottom: 1rem; }
.search-results { display: flex; flex-direction: column; }
.search-result-item {
    padding: 1.1rem 0; border-bottom: 1px solid var(--border);
}
.search-result-item:first-child { padding-top: 0.25rem; }
.search-result-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.3rem; line-height: 1.5; }
.search-result-title a { color: var(--text-deep); }
.search-result-title a:hover { color: var(--accent); }
.search-result-title mark { background: var(--accent-soft); color: var(--accent-deep); border-radius: 2px; padding: 0 0.15em; }
.search-result-meta {
    font-size: 0.78rem; color: var(--text-4);
    display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap;
    margin-bottom: 0.3rem;
}
.search-result-snippet {
    font-size: 0.88rem; color: var(--text-2); line-height: 1.75;
}
.search-result-snippet mark { background: var(--accent-soft); color: var(--accent-deep); border-radius: 2px; padding: 0 0.15em; }
.search-empty { text-align: center; padding: 4rem 1rem; color: var(--text-4); }
.search-empty .empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.search-loading { text-align: center; padding: 3rem 1rem; color: var(--text-4); }

/* ============================================
   暗黑模式 · 页面内联样式组件覆盖（!important 压过内联 <style>）
   ============================================ */

/* --- QA 问答页 --- */
[data-theme="dark"] .qa-card,
[data-theme="dark"] .interview-card { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .qa-card:hover,
[data-theme="dark"] .share-card:hover { border-color: var(--border-2) !important; box-shadow: 0 4px 14px var(--shadow) !important; }
[data-theme="dark"] .qa-card h2,
[data-theme="dark"] .interview-card h2 { color: var(--text-deep) !important; }
[data-theme="dark"] .qa-desc { color: var(--text-2) !important; }
[data-theme="dark"] .qa-card-bottom,
[data-theme="dark"] .share-card-bottom { border-top-color: var(--border) !important; }
[data-theme="dark"] .qa-badge { background: var(--surface-3) !important; color: var(--text) !important; }
[data-theme="dark"] .qa-badge.source { background: #1d4ed8 !important; color: #fff !important; }
[data-theme="dark"] .qa-date,
[data-theme="dark"] .qa-count { color: var(--text-4) !important; }
[data-theme="dark"] .qa-enter { color: #60a5fa !important; }
[data-theme="dark"] .guest-box { background: var(--surface-2) !important; border-left-color: var(--border-2) !important; }
[data-theme="dark"] .guest-box p { color: var(--text-2) !important; }
[data-theme="dark"] .qa-q { color: var(--text-deep) !important; }
[data-theme="dark"] .qa-q .asker { color: var(--text-4) !important; }
[data-theme="dark"] .qa-a { background: var(--surface-2) !important; border-left-color: var(--text-4) !important; color: var(--text-2) !important; }
[data-theme="dark"] .qa-a .author { color: var(--text-4) !important; }
[data-theme="dark"] .qa-replies { background: var(--surface) !important; border-color: var(--border) !important; color: var(--text-3) !important; }
[data-theme="dark"] .qa-replies strong { color: var(--text-2) !important; }
[data-theme="dark"] .interview-source a { color: var(--text-3) !important; }

/* --- 分享页 / 课程页 --- */
[data-theme="dark"] .share-card { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .share-card h2 { color: var(--text-deep) !important; }
[data-theme="dark"] .share-desc { color: var(--text-2) !important; }
[data-theme="dark"] .share-date, [data-theme="dark"] .share-count { color: var(--text-4) !important; }
[data-theme="dark"] .share-enter { color: #60a5fa !important; }
[data-theme="dark"] .share-enter:hover { color: #93c5fd !important; }
[data-theme="dark"] .share-body h3 { color: var(--text-deep) !important; }
[data-theme="dark"] .highlight-box { background: var(--surface-2) !important; border-left-color: var(--border-2) !important; color: var(--text-2) !important; }
[data-theme="dark"] .highlight-box strong { color: var(--text-deep) !important; }
[data-theme="dark"] .quote-box { background: var(--surface-2) !important; border-left-color: #1d4ed8 !important; color: #93c5fd !important; }
[data-theme="dark"] .data-table th, [data-theme="dark"] .data-table td { border-color: var(--border) !important; }
[data-theme="dark"] .data-table th { background: var(--surface-2) !important; color: var(--text-deep) !important; }
[data-theme="dark"] .data-table td { color: var(--text-2) !important; }
[data-theme="dark"] .data-table .num { color: var(--text-deep) !important; }
[data-theme="dark"] .pdf-bar { background: var(--surface-2) !important; border-color: var(--border) !important; }
[data-theme="dark"] .pdf-bar .pdf-name, [data-theme="dark"] .pdf-bar-name { color: var(--text-2) !important; }
[data-theme="dark"] .pdf-viewer { background: var(--surface-2) !important; border-color: var(--border) !important; }
[data-theme="dark"] .pdf-page-canvas { background: var(--surface) !important; box-shadow: 0 1px 4px var(--shadow) !important; }
[data-theme="dark"] .course-intro { color: var(--text-2) !important; }
[data-theme="dark"] .course-images img { border-color: var(--border) !important; }
[data-theme="dark"] .course-chapter-title { color: var(--text-deep) !important; }
[data-theme="dark"] .course-chapter-count, [data-theme="dark"] .course-chapter-tag { color: #93c5fd !important; background: #1e2a45 !important; border-color: #2d4a7a !important; }
[data-theme="dark"] .course-link { background: var(--surface) !important; border-color: var(--border) !important; color: var(--text-deep) !important; }
[data-theme="dark"] .course-link:hover { border-color: #2d4a7a !important; background: var(--surface-2) !important; }
[data-theme="dark"] .course-link-num { background: var(--surface-3) !important; color: var(--text-3) !important; }
[data-theme="dark"] .course-link:hover .course-link-num { background: #1d4ed8 !important; color: #fff !important; }
[data-theme="dark"] .course-section h2 { color: var(--text-deep) !important; border-left-color: var(--accent) !important; }
[data-theme="dark"] .course-desc { color: var(--text-2) !important; }
[data-theme="dark"] .course-pager { border-top-color: var(--border) !important; }
[data-theme="dark"] .course-prev, [data-theme="dark"] .course-next { color: var(--text-deep) !important; }
[data-theme="dark"] .course-prev:hover, [data-theme="dark"] .course-next:hover { color: #60a5fa !important; }
[data-theme="dark"] .course-idx-tag { color: var(--text-4) !important; }
[data-theme="dark"] .course-video-box { background: #0c0a09 !important; border-color: var(--border) !important; }

/* --- 书籍页 --- */
[data-theme="dark"] .book-card { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .book-link a { color: var(--text-3) !important; }
[data-theme="dark"] .book-link a:hover { color: var(--accent) !important; }
[data-theme="dark"] .preface-wrap { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .preface-wrap h1 { color: var(--text-deep) !important; }
[data-theme="dark"] .preface-wrap p { color: var(--text-2) !important; }
[data-theme="dark"] .preface-sign { color: var(--text-3) !important; }
[data-theme="dark"] .preface-note { background: var(--surface-2) !important; border-left-color: var(--border-2) !important; color: var(--text-3) !important; }
[data-theme="dark"] .preface-note strong { color: var(--text-2) !important; }

/* --- 专辑页（publish.py 生成，内联样式） --- */
[data-theme="dark"] .album-hero-cover { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .album-kicker { background: var(--surface) !important; border-color: var(--border-2) !important; }
[data-theme="dark"] .album-chapter-title { color: var(--text-deep) !important; border-bottom-color: var(--border) !important; }
[data-theme="dark"] .album-article { border-bottom-color: var(--border) !important; }
[data-theme="dark"] .album-article-body h3 a { color: var(--text-deep) !important; }
[data-theme="dark"] .album-article-body h3 a:hover { color: var(--accent) !important; }
[data-theme="dark"] .album-article-meta { color: var(--text-4) !important; }
[data-theme="dark"] .album-article-excerpt { background: var(--accent-soft) !important; color: var(--text-2) !important; border-left-color: var(--accent) !important; }
[data-theme="dark"] .album-article-thumb { border-color: var(--surface) !important; background: var(--surface) !important; }
[data-theme="dark"] .album-article-num, [data-theme="dark"] .album-article-more { color: var(--accent) !important; }

/* --- 文章页杂项 --- */
[data-theme="dark"] .essay-end { color: var(--text-deep) !important; border-top-color: var(--border) !important; }
[data-theme="dark"] .err-box { background: var(--surface) !important; border-color: var(--border) !important; }
[data-theme="dark"] .err-box .err-q { color: var(--text-deep) !important; }
[data-theme="dark"] .err-box .err-a { color: var(--text-2) !important; }

/* --- 老文章内联正文色（.blog-detail-body p color:#44403c）统一为浅色 --- */
[data-theme="dark"] .blog-detail-body p { color: var(--text) !important; }
[data-theme="dark"] .blog-detail-body p.figcap { color: var(--text-4) !important; }