/* ==========================================================
   模板创新版样式 —— 玻璃拟态 · 渐变美学 · 微交互
   在原有 style.css 基础上加载，优先级更高
   ========================================================== */

/* ---------- CSS 变量：主题色系统 ---------- */
:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #ec4899;
  --accent-light: #f472b6;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --gradient-2: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
  --gradient-3: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-soft: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(236,72,153,0.1) 100%);
  --bg-body: #f3f4f7;
  --bg-card: #ffffff;
  --text-main: #333333;
  --text-sub: #6b7280;
  --text-light: #9ca0ad;
  --border-soft: rgba(0,0,0,0.06);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 40px rgba(99,102,241,0.15);
  --shadow-glow: 0 0 30px rgba(99,102,241,0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background: linear-gradient(180deg, #eef2ff 0%, #f3f4f7 300px);
  background-attachment: fixed;
}

/* ---------- 毛玻璃导航 ---------- */
.header-nav,
#nav-box {
  background: rgba(255,255,255,0.75) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 4px 30px rgba(0,0,0,0.04) !important;
}

.header .nav-bar li a {
  position: relative;
  font-weight: 500;
}

.header .nav-bar li a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 22px;
  width: 0;
  height: 3px;
  background: var(--gradient-1);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.header .nav-bar li a:hover::after,
.header .nav-bar li.active a::after {
  width: 28px;
}

.header .nav-bar li.active a,
.header .nav-bar li a:hover {
  color: var(--primary) !important;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 搜索按钮 & 夜间模式按钮 */
.jz-search-btn:hover {
  color: var(--primary) !important;
  transform: scale(1.15);
}

.jz-night-btn:hover i {
  color: var(--primary);
  transform: rotate(30deg) scale(1.1);
  transition: var(--transition);
}

.jz-night-btn i {
  transition: var(--transition);
}

/* 搜索框毛玻璃 */
.b-nav-search_wrap {
  background: rgba(99,102,241,0.85) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ---------- 整体容器 ---------- */
.container {
  max-width: 1240px;
}

.content-wrap {
  position: relative;
}

/* ---------- 首页轮播创新 ---------- */
.slider {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.slideBox .bd ul li {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.slideBox .bd ul li::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
}

.slideBox .hd ul li {
  width: 24px !important;
  height: 4px !important;
  border-radius: 2px;
  background: rgba(255,255,255,0.4) !important;
  transition: var(--transition);
}

.slideBox .hd ul li.on {
  width: 32px !important;
  background: #fff !important;
}

.slideBox .prev,
.slideBox .next {
  width: 44px !important;
  height: 44px !important;
  line-height: 44px !important;
  background: rgba(255,255,255,0.2) !important;
  backdrop-filter: blur(10px);
  border-radius: 50% !important;
  color: #fff !important;
  font-size: 20px !important;
  transition: var(--transition);
  opacity: 0;
}

.slider:hover .prev,
.slider:hover .next {
  opacity: 1;
}

.slideBox .prev:hover,
.slideBox .next:hover {
  background: var(--gradient-1) !important;
  transform: scale(1.1);
}

/* ---------- 文章卡片创新 ---------- */
.append {
  margin-top: 24px !important;
}

.append .post {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-soft);
  margin-bottom: 20px;
  position: relative;
}

.append .post:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99,102,241,0.2);
}

.append .post .post-img {
  overflow: hidden;
  border-radius: var(--radius-md);
  margin: 12px;
}

.append .post .post-img img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.append .post:hover .post-img img {
  transform: scale(1.08);
}

.append .post header h2 a {
  font-size: 18px !important;
  font-weight: 700;
  line-height: 1.5;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.append .post:hover header h2 a {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.append .post .post-text {
  color: var(--text-sub);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 8px 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.append .post footer {
  border-top: 1px solid var(--border-soft);
  padding-top: 12px;
  margin-top: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.append .post footer span {
  color: var(--text-light);
  font-size: 12.5px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.append .post footer .author a {
  color: var(--primary);
  font-weight: 500;
  position: relative;
}

.append .post footer .author a::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--gradient-1);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

/* 卡片角标 */
.append .post::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  width: 8px;
  height: 8px;
  background: var(--gradient-1);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(99,102,241,0.6);
  z-index: 3;
  opacity: 0;
  transition: opacity 0.3s;
}

.append .post:hover::before {
  opacity: 1;
}

/* ---------- 侧边栏创新 ---------- */
.sidebar .function {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  margin-bottom: 20px;
  overflow: hidden;
  transition: var(--transition);
}

.sidebar .function:hover {
  box-shadow: var(--shadow-md);
}

.sidebar .function_t {
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(236,72,153,0.08)) !important;
  border-bottom: none !important;
  padding: 16px 20px !important;
  position: relative;
  font-size: 15px !important;
  font-weight: 700;
  color: var(--text-main);
}

.sidebar .function_t::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 18px;
  background: var(--gradient-1);
  border-radius: 0 4px 4px 0;
}

.sidebar .function_c {
  padding: 16px 20px !important;
}

/* 侧边栏头像卡片 */
#side-new-about-item .about_img {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 0 !important;
}

#side-new-about-item .about_avatar {
  margin-top: -30px;
  text-align: center;
  position: relative;
  z-index: 2;
}

#side-new-about-item .about_avatar img {
  width: 70px !important;
  height: 70px !important;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  background: #fff;
}

#side-new-about-item .about_name {
  font-size: 16px;
  font-weight: 700;
  margin: 10px 0 6px;
  color: var(--text-main);
}

#side-new-about-item .about_tag {
  color: var(--text-sub);
  font-size: 12.5px;
  line-height: 1.7;
  margin-top: 12px;
}

/* 社交图标 */
.ul_distance {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}

.social_a {
  width: 38px !important;
  height: 38px !important;
  line-height: 38px !important;
  border-radius: 50% !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
  color: var(--text-sub) !important;
  transition: var(--transition);
  font-size: 16px !important;
  text-align: center;
}

.social_a:hover {
  transform: translateY(-3px) scale(1.1);
  color: #fff !important;
}

.social_qq:hover { background: linear-gradient(135deg, #12b7f5, #0e91c7); box-shadow: 0 6px 15px rgba(18,183,245,0.4); }
.social_weixin:hover { background: linear-gradient(135deg, #07c160, #06994d); box-shadow: 0 6px 15px rgba(7,193,96,0.4); }
.social_weibo:hover { background: linear-gradient(135deg, #e6162d, #c01226); box-shadow: 0 6px 15px rgba(230,22,45,0.4); }
.social_email:hover { background: var(--gradient-1); box-shadow: 0 6px 15px rgba(99,102,241,0.4); }

/* 热门阅读排行榜 */
#side-tui-article-item article {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-soft);
  position: relative;
}

#side-tui-article-item article:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

#side-tui-article-item article::before {
  content: counter(rank);
  counter-increment: rank;
  position: absolute;
  top: 10px;
  left: 0;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  background: #cbd5e1;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  z-index: 2;
}

#side-tui-article-item .function_c {
  counter-reset: rank;
}

#side-tui-article-item article:nth-child(1)::before { background: linear-gradient(135deg, #ef4444, #dc2626); }
#side-tui-article-item article:nth-child(2)::before { background: linear-gradient(135deg, #f97316, #ea580c); }
#side-tui-article-item article:nth-child(3)::before { background: linear-gradient(135deg, #eab308, #ca8a04); }

#side-tui-article-item article .image {
  flex-shrink: 0;
  margin-left: 28px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

#side-tui-article-item article .image img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  transition: transform 0.4s;
}

#side-tui-article-item article:hover .image img {
  transform: scale(1.1);
}

#side-tui-article-item article h3 {
  flex: 1;
  font-size: 13.5px;
  line-height: 1.5;
  font-weight: 500;
  padding-top: 0 !important;
}

#side-tui-article-item article h3 a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.3s;
}

#side-tui-article-item article:hover h3 a {
  color: var(--primary);
}

/* 标签云 */
#divTags li {
  display: inline-block;
  margin: 4px 4px 4px 0;
}

#divTags li a {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12.5px;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  color: var(--text-sub);
  border-radius: 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

#divTags li a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 0;
}

#divTags li a:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

#divTags li a:hover::before {
  opacity: 1;
}

#divTags li a span {
  position: relative;
  z-index: 1;
}

/* ---------- 文章详情页创新 ---------- */
.article {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  margin-bottom: 20px;
  overflow: hidden;
  transition: var(--transition);
}

.article:hover {
  box-shadow: var(--shadow-md);
}

.article-container {
  padding: 30px;
}

.article-header {
  text-align: center;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--border-soft);
  margin-bottom: 24px;
}

.article-title {
  font-size: 26px !important;
  font-weight: 800 !important;
  line-height: 1.4 !important;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px !important;
}

.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-light);
  font-size: 13px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-meta i {
  color: var(--primary-light);
}

/* 文章正文 */
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #374151;
}

.article-content p {
  margin-bottom: 1.2em;
  text-indent: 2em;
}

.article-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 1.5em 0 0.8em;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  color: var(--text-main);
  position: relative;
}

.article-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 1.2em 0 0.6em;
  color: var(--text-main);
}

.article-content img {
  border-radius: var(--radius-md);
  margin: 16px auto;
  display: block;
  max-width: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  cursor: zoom-in;
  transition: var(--transition);
}

.article-content img:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.article-content blockquote {
  border-left: 4px solid var(--primary) !important;
  background: linear-gradient(135deg, rgba(99,102,241,0.05), rgba(236,72,153,0.05));
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-sub);
  font-style: italic;
}

.article-content a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px dashed rgba(99,102,241,0.3);
  transition: var(--transition);
}

.article-content a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.article-content code {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: 'JetBrains Mono', Consolas, monospace;
}

.article-content pre {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: #e2e8f0;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.6;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.2);
}

.article-content pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

/* 文章标签 */
.tag-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px dashed var(--border-soft);
  border-bottom: 1px dashed var(--border-soft);
}

.tag-wrap i {
  color: var(--primary);
  margin-right: 4px;
}

.tag-wrap a {
  display: inline-block;
  padding: 4px 14px;
  background: var(--gradient-soft);
  color: var(--primary-dark);
  font-size: 12.5px;
  border-radius: 20px;
  transition: var(--transition);
}

.tag-wrap a:hover {
  background: var(--gradient-1);
  color: #fff;
  transform: translateY(-2px);
}

/* 互动操作栏 */
.post-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 30px;
  border: 1px solid var(--border-soft);
  background: #fff;
  color: var(--text-sub);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.action-btn.like:hover {
  color: #ef4444;
  border-color: #fecaca;
  background: #fef2f2;
}

.action-btn.like.active {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  border-color: transparent;
}

.action-btn.collect:hover {
  color: #f59e0b;
  border-color: #fde68a;
  background: #fffbeb;
}

.action-btn.collect.active {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  border-color: transparent;
}

.action-btn.share:hover {
  color: var(--primary);
  border-color: #c7d2fe;
  background: #eef2ff;
}

.action-btn i {
  font-size: 16px;
}

/* 作者信息卡 */
.authorbio {
  background: var(--gradient-soft);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 20px;
  border: 1px solid rgba(99,102,241,0.1);
}

/* 上下篇（修复原模板FontAwesome大箭头与文字重叠）
 * 原模板 style.css：.post-previous a:after / .post-next a:after 是 position:absolute + font-size:40px 的大箭头
 * 本创新版：外层 div 加"上一篇/下一篇"文字标签，内层 a 的 ::after 仍保留箭头但重置冲突样式 */
.post-navigation {
  display: flex;
  gap: 16px;
  overflow: hidden;
  clear: both;
  margin: 20px 0 0 !important;
  padding: 0 !important;
  background: none !important;
}

.post-navigation .post-previous,
.post-navigation .post-next {
  flex: 1;
  width: auto !important;
  float: none !important;
  padding: 18px 24px !important;
  text-align: left;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  transition: var(--transition);
  position: relative;
}

.post-navigation .post-next {
  text-align: right;
}

.post-navigation > div:hover {
  background: var(--gradient-soft);
  border-color: rgba(99,102,241,0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 用外层 div 的伪元素放"上一篇/下一篇"文字标签，避免和 a::after 的大箭头冲突 */
.post-navigation .post-previous::before,
.post-navigation .post-next::after {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 6px;
  font-weight: normal;
}
.post-navigation .post-previous::before {
  content: '← 上一篇';
}
.post-navigation .post-next::after {
  content: '下一篇 →';
  margin-bottom: 0;
  margin-top: 6px;
}

/* 重置 a::after — 原模板的大箭头保留但缩小尺寸、改颜色，不再绝对定位 */
.post-navigation .post-previous a:after,
.post-navigation .post-next a:after {
  position: static !important;
  font-size: 14px !important;
  margin: 0 !important;
  top: auto !important;
  line-height: 1 !important;
  color: var(--primary) !important;
  display: inline-block;
}
.post-navigation .post-previous a:after {
  margin-right: 6px !important;
}
.post-navigation .post-next a:after {
  margin-left: 6px !important;
}

.post-navigation a {
  display: block;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-main) !important;
  transition: color 0.3s;
}
.post-navigation a:hover {
  color: var(--primary) !important;
}

/* 重置原模板的 span 样式（如果有） */
.post-navigation div span {
  display: inline !important;
  color: inherit;
  font-size: inherit;
}

/* 相关文章 */
.relates .title h3 {
  font-size: 18px !important;
  font-weight: 700;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  margin-bottom: 20px;
}

.related-site {
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  background: #f8fafc;
}

.related-site:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.related-site-img img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  transition: transform 0.5s;
}

.related-site:hover .related-site-img img {
  transform: scale(1.08);
}

.related-title {
  padding: 10px 12px;
  font-size: 13.5px;
  line-height: 1.5;
}

.related-title a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.3s;
}

.related-site:hover .related-title a {
  color: var(--primary);
}

/* ---------- 页脚创新 ---------- */
.footer-box {
  margin-top: 40px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  border-top: 3px solid transparent;
  border-image: var(--gradient-1) 1;
  color: #94a3b8;
}

.footer-middle {
  padding: 50px 0 30px;
}

.footer-title {
  color: #f1f5f9;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient-1);
  border-radius: 2px;
}

.footer-box a {
  color: #94a3b8 !important;
  transition: var(--transition);
}

.footer-box a:hover {
  color: #fff !important;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  font-size: 13px;
  color: #64748b;
}

.qr-tips {
  color: #94a3b8 !important;
  font-size: 12px;
  margin-top: 6px;
}

.blkl img, .blkc img, .blkr img {
  border-radius: 8px;
  padding: 3px;
  background: #fff;
  transition: var(--transition);
}

.blkl:hover img, .blkc:hover img, .blkr:hover img {
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* ---------- 回到顶部 ---------- */
#topcontrol {
  width: 48px !important;
  height: 48px !important;
  line-height: 44px !important;
  border-radius: 50% !important;
  background: var(--gradient-1) !important;
  color: #fff !important;
  box-shadow: 0 4px 15px rgba(99,102,241,0.4) !important;
  transition: var(--transition);
  bottom: 30px !important;
  right: 30px !important;
  font-size: 22px !important;
  text-align: center;
}

#topcontrol:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(99,102,241,0.5) !important;
}

/* ---------- 阅读进度条 ---------- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-1);
  z-index: 99999;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(99,102,241,0.5);
}

/* ---------- 浮动目录 ---------- */
.toc-float {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.6);
  max-width: 240px;
  max-height: 70vh;
  overflow-y: auto;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.toc-float.show {
  opacity: 1;
  visibility: visible;
}

.toc-float h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--primary);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: 6px;
}

.toc-float h4 i {
  font-size: 12px;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 6px;
}

.toc-list li a {
  display: block;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text-sub);
  border-radius: 6px;
  transition: var(--transition);
  line-height: 1.4;
  border-left: 2px solid transparent;
}

.toc-list li a:hover {
  color: var(--primary);
  background: var(--gradient-soft);
  border-left-color: var(--primary);
}

.toc-list li.active a {
  color: var(--primary);
  background: var(--gradient-soft);
  font-weight: 600;
  border-left-color: var(--primary);
}

.toc-list .toc-h3 {
  padding-left: 16px;
  font-size: 12.5px;
}

/* ---------- 滚动渐入动画 ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 首页精选区 ---------- */
.featured-section {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
  height: 400px;
}

.featured-main {
  grid-row: span 2;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  display: block;
}

.featured-main img,
.featured-sub img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.featured-main:hover img,
.featured-sub:hover img {
  transform: scale(1.08);
}

.featured-main::after,
.featured-sub::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.8) 100%);
  pointer-events: none;
}

.featured-main .featured-info,
.featured-sub .featured-info {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 2;
  color: #fff;
}

.featured-main .featured-cat,
.featured-sub .featured-cat {
  display: inline-block;
  padding: 4px 12px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  font-weight: 500;
}

.featured-main h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  color: #fff;
}

.featured-sub {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  display: block;
}

.featured-sub h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
  color: #fff;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-sub .featured-info {
  left: 16px;
  right: 16px;
  bottom: 14px;
}

.featured-sub .featured-cat {
  font-size: 11px;
  padding: 2px 10px;
  margin-bottom: 8px;
}

/* ---------- 分类Tab ---------- */
.cat-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  padding: 14px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
}

.cat-tab {
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 14px;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition);
  background: #f8fafc;
  border: 1px solid transparent;
}

.cat-tab:hover {
  color: var(--primary);
}

.cat-tab.active {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

/* ---------- 图片灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  cursor: zoom-out;
}

.lightbox.show {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  transform: scale(0.9);
  transition: transform 0.3s;
}

.lightbox.show img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
  transform: rotate(90deg);
}

/* ---------- 文章阅读信息条 ---------- */
.read-info-bar {
  display: flex;
  justify-content: space-around;
  padding: 16px;
  background: var(--gradient-soft);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  border: 1px solid rgba(99,102,241,0.1);
}

.read-info-item {
  text-align: center;
}

.read-info-item .num {
  font-size: 22px;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.read-info-item .label {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

/* ---------- 选择文本颜色 ---------- */
::selection {
  background: rgba(99,102,241,0.25);
  color: var(--primary-dark);
}

/* ---------- 滚动条美化 ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-dark), #db2777);
}

/* ---------- 响应式适配 ---------- */
@media (max-width: 768px) {
  .featured-section {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    height: auto;
  }

  .featured-main {
    grid-row: auto;
    height: 220px;
  }

  .featured-sub {
    height: 140px;
  }

  .article-container {
    padding: 20px;
  }

  .article-title {
    font-size: 20px !important;
  }

  .toc-float {
    display: none;
  }

  .post-navigation {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  .article-container {
    padding: 16px;
  }

  .article-content {
    font-size: 15px;
  }

  .featured-main h3 {
    font-size: 18px;
  }

  .post-actions {
    gap: 10px;
  }

  .action-btn {
    padding: 8px 16px;
    font-size: 13px;
  }
}