@import url("https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700&family=Cormorant+Garamond:wght@500;600;700&family=Manrope:wght@400;500;600;700;800&family=Noto+Serif+SC:wght@500;700&display=swap");

/* ========================================== */
/* 学术博客全局变量与基础样式 */
/* ========================================== */
:root {
    --qv-primary: #1a237e;
    --qv-accent: #2a6f97;
    --qv-ink: #1d2a38;
    --qv-muted: #546e7a;
    --qv-bg-soft: #f4f8fc;
    --qv-line: #d7e2ee;
    --qv-radius: 12px;
    --qv-shadow: 0 8px 24px rgba(13, 43, 70, 0.08);
  --accent: #2a6f97;
  --accent-dark: #1a237e;
  --card-bg: #ffffff;
  --text-muted: #546e7a;
  --border-light: #eaeaea;
  --radius: 12px;
  --shadow: 0 5px 20px rgba(0,0,0,0.08);
    --qv-btn-radius: 12px;
    --qv-btn-shadow: 0 10px 24px rgba(20, 67, 100, 0.16);
    --qv-btn-font-weight: 600;
}

/* 全站浏览量显示（页脚） */
.site-total-views-wrap {
  margin-top: 12px;
  margin-bottom: 0;
}
.site-counter {
  font-size: 1rem;
  color: var(--text-muted);
}
.site-counter i.fa-eye {
  margin-right: 6px;
  color: var(--accent);
}
.site-counter .leancloud-total-views {
  font-weight: 600;
  color: var(--accent);
}
.site-counter-label {
  margin-left: 4px;
}

/* ========================================== */
/* 板块列表页统一设计（生活 / 能力提升等） */
/* ========================================== */
.section-page {
  padding-top: 2rem;
  padding-bottom: 3rem;
}
.section-page .title.is-2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--accent);
}
.section-page .section-intro {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding: 1.25rem 1.5rem;
  background: #f8fafc;
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}
.section-life .section-intro {
  border-left-color: #10b981;
}
.section-practice .section-intro {
  border-left-color: #f59e0b;
}
.section-list-by-date .section-list-card,
.section-list-flat .section-list-card {
  margin-bottom: 1.5rem;
}
.section-list-by-date .post-divider:last-child,
.section-list-flat .post-divider:last-child {
  display: none;
}
.no-content-message {
  text-align: center;
  padding: 3rem 1.5rem;
  color: #6b7c85;
  background: #f8f9fa;
  border-radius: var(--radius);
  border: 2px dashed #dee2e6;
}
.no-content-message i {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #adb5bd;
}
.no-content-message h3 {
  font-size: 1.25rem;
  color: #495057;
  margin-bottom: 0.5rem;
}
.no-content-message p {
  font-size: 1rem;
  margin: 0;
}

/* ========================================== */
/* 单篇文章页专业版式 */
/* ========================================== */
.single-page-header .article-breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: rgba(255,255,255,0.85);
}
.single-page-header .article-breadcrumb a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}
.single-page-header .article-breadcrumb a:hover {
  color: #fff;
  text-decoration: underline;
}
.single-page-header .article-breadcrumb .sep {
  margin: 0 0.4rem;
  opacity: 0.7;
}
.single-page-header .article-breadcrumb .current {
  color: rgba(255,255,255,0.95);
}
.single-article .article-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}
.single-article .article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 0.75rem;
}
.single-article .article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.single-article .article-meta i { opacity: 0.9; }
.single-article .article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.single-article .article-tags .tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  font-size: 0.85rem;
  background: rgba(255,255,255,0.2);
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s;
}
.single-article .article-tags .tag:hover {
  background: rgba(255,255,255,0.3);
}
.single-article .article-body {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #2c3e50;
  padding-top: 2rem;
  padding-bottom: 2rem;
}
.single-article .article-body h1 { font-size: 1.75rem; margin-top: 2rem; margin-bottom: 0.75rem; }
.single-article .article-body h2 { font-size: 1.45rem; margin-top: 1.75rem; margin-bottom: 0.6rem; }
.single-article .article-body h3 { font-size: 1.25rem; margin-top: 1.5rem; margin-bottom: 0.5rem; }
.single-article .article-body p { margin-bottom: 1.25rem; }
.single-article .article-body ul, .single-article .article-body ol { margin-bottom: 1.25rem; padding-left: 1.5rem; }
.single-article .article-body li { margin-bottom: 0.4rem; }
.single-article .article-body hr { margin: 2rem 0; border: 0; border-top: 1px solid #eaeaea; }
.single-article .article-body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--accent);
  background: #f8fafc;
  color: #546e7a;
}
.single-article .article-nav {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid #eaeaea;
  margin-top: 2rem;
}
.single-article .article-nav a {
  max-width: 45%;
  font-size: 0.95rem;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
.single-article .article-nav a:hover { color: var(--accent-dark); text-decoration: underline; }
.single-article .article-nav .nav-prev { text-align: left; }
.single-article .article-nav .nav-next { text-align: right; margin-left: auto; }
.single-article .leancloud_visitors { display: inline-flex; align-items: center; gap: 0.35rem; }

/* ========================================== */
/* 侧边栏修复样式 - 解决重叠和显示问题 */
/* ========================================== */

/* 重置侧边栏容器样式 */
.sidebar-left-container,
.sidebar-right-container {
    width: 100%;
    padding: 15px 0;
    box-sizing: border-box;
}

/* 清除浮动和定位问题 */
.sidebar-left-container *,
.sidebar-right-container * {
    box-sizing: border-box;
}

/* 头像容器 */
.author-avatar {
    max-width: 80px;
    height: 80px;
    width: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    display: block;
    border: 2px solid #2a6f97;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.author-avatar img:hover {
    transform: scale(1.05);
}

/* 作者描述 */
.author-description {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.5;
    margin-bottom: 20px;
    text-align: center;
    padding: 0 10px;
}

/* ========================================== */
/* 修复社交图标水平排列问题 */
/* ========================================== */

/* 社交图标容器 - 水平排列 */
.author-social,
.sidebar-social,
.sidebar-social.inline {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 12px !important;
    margin: 20px auto !important;
    padding: 0 !important;
    list-style: none !important;
}

.author-social a,
.sidebar-social a,
.sidebar-social.inline a {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: #f0f8ff !important;
    color: #2a6f97 !important;
    text-decoration: none !important;
    font-size: 1.05rem !important;
    transition: all 0.3s ease !important;
    border: 1px solid #d1e3ff !important;
}

.author-social a:hover,
.sidebar-social a:hover {
    background: #2a6f97 !important;
    color: white !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 4px 12px rgba(42, 111, 151, 0.3) !important;
}

/* 特定社交图标的颜色调整 */
.author-social a[href*="github"]:hover,
.sidebar-social a[href*="github"]:hover {
    background: #333 !important;
}

.author-social a[href*="researchgate"]:hover,
.sidebar-social a[href*="researchgate"]:hover {
    background: #00d0af !important;
}

.author-social a[href*="google"]:hover,
.sidebar-social a[href*="google"]:hover {
    background: #4285f4 !important;
}

.author-social a[href*="orcid"]:hover,
.sidebar-social a[href*="orcid"]:hover {
    background: #a6ce39 !important;
}

.author-social a[href*="mailto"]:hover,
.sidebar-social a[href*="mailto"]:hover {
    background: #d44638 !important;
}

@media (max-width: 768px) {
    .author-social,
    .sidebar-social {
        gap: 8px !important;
    }
    
    .author-social a,
    .sidebar-social a {
        width: 34px !important;
        height: 34px !important;
        font-size: 0.95rem !important;
    }
}

/* 侧边栏模块 */
.sidebar-module {
    width: 100%;
    margin-bottom: 20px;
    overflow: hidden;
}

.sidebar-module h5 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
    color: #333;
}

.sidebar-module ul {
    padding-left: 0;
    margin: 0;
    list-style: none;
    width: 100%;
}

.sidebar-module li {
    width: 100%;
    margin-bottom: 8px;
    display: block;
    clear: both;
}

.sidebar-module a {
    display: block;
    width: 100%;
    padding: 6px 0;
    color: #555;
    text-decoration: none;
    transition: all 0.2s ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-module a:hover {
    color: #2a6f97;
    padding-left: 5px;
}

.site-directory a {
    font-size: 0.9rem;
    color: #555;
    padding: 4px 0;
    display: block;
    text-decoration: none;
    transition: all 0.2s ease;
}

.site-directory a:hover {
    color: #2a6f97;
    padding-left: 5px;
}

/* ========================================== */
/* 导航菜单样式优化 - 简洁一级菜单 */
/* ========================================== */

.navbar-custom {
    min-height: 70px;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

.navbar-custom .container {
    padding-left: 20px;
    padding-right: 20px;
}

.navbar-custom .navbar-brand {
    font-size: 22px;
    font-weight: 800;
    padding: 23px 0;
    color: #1a237e;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.navbar-custom .navbar-brand .brand-text {
    background: linear-gradient(135deg, #1a237e 0%, #2a6f97 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.navbar-custom .navbar-brand:hover {
    opacity: 0.9;
}

/* 一级菜单项 */
.navbar-custom .nav > li > a {
    font-size: 15px;
    font-weight: 600;
    padding: 25px 18px;
    color: #333;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    letter-spacing: 0.3px;
    text-transform: none;
}

.navbar-custom .nav > li > a:hover,
.navbar-custom .nav > li > a:focus {
    color: #1a237e;
    background-color: transparent;
}

/* 悬停下划线动画 */
.navbar-custom .nav > li > a::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 50%;
    right: 50%;
    height: 2px;
    background: linear-gradient(135deg, #FF6B6B 0%, #2a6f97 100%);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
}

.navbar-custom .nav > li > a:hover::after {
    left: 18px;
    right: 18px;
    opacity: 1;
}

/* 当前活动菜单项 */
.navbar-custom .nav > .active > a,
.navbar-custom .nav > .active > a:hover,
.navbar-custom .nav > .active > a:focus {
    color: #1a237e;
    background-color: transparent;
    font-weight: 700;
}

.navbar-custom .nav > .active > a::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: linear-gradient(135deg, #FF6B6B 0%, #2a6f97 100%);
    border-radius: 2px;
    opacity: 1;
}

/* 搜索按钮 */
.nav-search {
    display: flex;
    align-items: center;
    padding: 25px 15px;
    transition: all 0.3s ease;
}

.nav-search i {
    font-size: 16px;
    color: #333;
    transition: all 0.3s ease;
}

.nav-search:hover i {
    color: #FF6B6B;
    transform: scale(1.1);
}

/* 导航切换按钮 */
.navbar-toggle {
    border: none;
    background: transparent;
    margin: 20px 0;
    padding: 9px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.navbar-toggle:hover {
    background: rgba(42, 111, 151, 0.05);
}

.navbar-toggle .icon-bar {
    background-color: #333;
    height: 2px;
    width: 22px;
    border-radius: 1px;
    transition: all 0.3s ease;
    display: block;
    margin: 4px 0;
}

.navbar-toggle:hover .icon-bar {
    background-color: #2a6f97;
}

.navbar-toggle.collapsed .icon-bar:nth-child(1),
.navbar-toggle.collapsed .icon-bar:nth-child(2),
.navbar-toggle.collapsed .icon-bar:nth-child(3) {
    transform: none;
}

.navbar-toggle .icon-bar:nth-child(1) {
    transform: rotate(45deg);
    transform-origin: 10% 50%;
}

.navbar-toggle .icon-bar:nth-child(2) {
    opacity: 0;
}

.navbar-toggle .icon-bar:nth-child(3) {
    transform: rotate(-45deg);
    transform-origin: 10% 50%;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .navbar-custom {
        padding: 0 15px;
    }
    
    .navbar-custom .navbar-brand {
        font-size: 20px;
        padding: 20px 0;
    }
    
    .navbar-custom .nav > li > a {
        font-size: 15px;
        padding: 15px 20px;
        text-align: left;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .navbar-custom .nav > li > a::after {
        display: none;
    }
    
    .navbar-custom .nav > li > a:hover::after {
        display: none;
    }
    
    .navbar-custom .nav > .active > a,
    .navbar-custom .nav > .active > a:hover,
    .navbar-custom .nav > .active > a:focus {
        background: linear-gradient(135deg, rgba(255, 107, 107, 0.1) 0%, rgba(42, 111, 151, 0.1) 100%);
        color: #1a237e;
        border-left: 3px solid #2a6f97;
    }
    
    .navbar-custom .nav > .active > a::after {
        display: none;
    }
    
    .nav-search {
        padding: 15px 20px;
        justify-content: flex-start;
    }
    
    .nav-search i {
        font-size: 16px;
    }
}

/* 桌面端更大屏幕优化 */
@media (min-width: 1200px) {
    .navbar-custom .container {
        max-width: 1400px;
        padding-left: 40px;
        padding-right: 40px;
    }
    
    .navbar-custom .nav > li > a {
        font-size: 16px;
        padding: 25px 20px;
    }
    
    .navbar-custom .navbar-brand {
        font-size: 24px;
    }
}

/* 滚动时导航栏变化 */
.navbar-custom.scrolled {
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
}

/* ========================================== */
/* 增大首页字体 */
/* ========================================== */

/* 首页主标题 */
.home .page-title,
.home .title.is-2,
.home h1.page-title {
    font-size: 2.5rem !important;
    font-weight: 700;
    color: #1b3b4a;
    margin-bottom: 30px;
    line-height: 1.3;
}

/* 首页副标题 */
.home h2,
.home .section-title,
.home .subject-title {
    font-size: 2rem !important;
    font-weight: 600;
    color: #2a6f97;
    margin: 40px 0 25px;
    padding-bottom: 12px;
    border-bottom: 3px solid #2a6f97;
}

/* 首页三级标题 */
.home h3 {
    font-size: 1.6rem !important;
    font-weight: 600;
    color: #333;
    margin: 30px 0 20px;
}

/* 首页段落文字 */
.home p,
.home .lead {
    font-size: 1.1rem !important;
    line-height: 1.7;
    color: #444;
    margin-bottom: 20px;
}

/* 首页卡片标题 */
.home .card-title,
.home .feature-title {
    font-size: 1.4rem !important;
    font-weight: 600;
    color: #1b3b4a;
    margin-bottom: 15px;
}

/* 首页卡片内容 */
.home .card-text,
.home .feature-description {
    font-size: 1.05rem !important;
    line-height: 1.6;
    color: #555;
}

@media (max-width: 768px) {
    .home .page-title,
    .home .title.is-2,
    .home h1.page-title {
        font-size: 2rem !important;
    }
    
    .home h2,
    .home .section-title,
    .home .subject-title {
        font-size: 1.6rem !important;
    }
    
    .home h3 {
        font-size: 1.3rem !important;
    }
    
    .home p,
    .home .lead {
        font-size: 1rem !important;
    }
}

/* ========================================== */
/* Custom styles for QiView */
/* ========================================== */

.sidebar-container li.active > a {
    background-color: #f0f8ff;
    color: #2a6f97;
    font-weight: 600;
    padding: 4px 6px;
    border-radius: 4px;
}

.subject-title {
    margin-top: 24px;
    font-size: 1.4rem;
    color: #1b3b4a;
}

.more-link a {
    display: inline-block;
    margin-top: 8px;
    color: #2a6f97;
}

.subject-group { 
    margin-top: 28px; 
    margin-bottom: 18px; 
}

.subject-posts { 
    display: grid; 
    grid-template-columns: 1fr; 
    gap: 12px; 
}

.post-card { 
    background: #fff; 
    border: 1px solid #eef3f6; 
    border-radius: 8px; 
    padding: 12px; 
    box-shadow: 0 1px 4px rgba(18,50,58,0.04); 
    transition: transform .12s ease, box-shadow .12s ease; 
}

.post-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 6px 18px rgba(18,50,58,0.08); 
}

.post-card-title { 
    margin: 0 0 6px 0; 
    font-size: 1.28rem; 
    font-weight: 600; 
    letter-spacing: -0.2px; 
}

.post-card-title a { 
    color: #1b3b4a; 
    text-decoration: none; 
}

.post-card-meta { 
    font-size: 0.82rem; 
    color: #6b7c85; 
    margin-bottom: 0; 
}

.post-card-summary { 
    color: #465b63; 
    margin: 2px 0 0 0; 
    font-size: 0.92rem; 
    line-height: 1.2; 
    max-height: 2.6em; 
    overflow: hidden; 
}

.post-list .post-item { 
    padding: 6px 0; 
}

.post-list .post-item h3 { 
}

/* (Old homepage styles removed — now in home.css) */


    font-size: 1rem; 
    margin-bottom: 4px; 
}

.post-list .post-item .post-summary { 
    font-size: 0.9rem; 
    color: #57666b; 
}

.post-card { 
    display: flex; 
    gap: 12px; 
    align-items: flex-start; 
}

.post-card-thumb { 
    width: 120px; 
    flex: 0 0 120px; 
}

.post-card-thumb img { 
    width: 100%; 
    height: 80px; 
    object-fit: cover; 
    border-radius: 6px; 
    border: 1px solid #eef3f6; 
}

.post-card-main { 
    flex: 1 1 auto; 
}

.post-controls select { 
    padding: 6px 8px; 
    border-radius: 6px; 
    border: 1px solid #dfe9ec; 
}

@media (max-width: 768px) {
    .post-card { 
        flex-direction: column; 
    }
    
    .post-card-thumb { 
        width: 100%; 
    }
    
    .post-card-thumb img { 
        height: 160px; 
    }
}

/* ========================================== */
/* 目录显示控制 */
/* ========================================== */

/* 默认目录模块样式 */
.sidebar-module.toc-module {
    margin-bottom: 30px;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    /* 默认隐藏，由页面类型类控制显示 */
    display: none;
}

.sidebar-module.toc-module h4 {
    margin-top: 0;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eaeaea;
    color: #333;
    font-size: 1.1rem;
}

/* 列表页面隐藏目录 */
.list-page .sidebar-module.toc-module,
.home .sidebar-module.toc-module {
    display: none !important;
}

/* 单篇文章页面显示目录 */
.single-page .sidebar-module.toc-module {
    display: block !important;
    animation: tocFadeIn 0.5s ease-in-out;
}

@keyframes tocFadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 目录内容样式 */
#TableOfContents {
    font-size: 0.9rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

#TableOfContents::-webkit-scrollbar {
    width: 4px;
}

#TableOfContents::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}

#TableOfContents::-webkit-scrollbar-thumb {
    background: #2a6f97;
    border-radius: 2px;
}

#TableOfContents ul {
    padding-left: 20px;
    list-style: none;
}

#TableOfContents li {
    margin-bottom: 8px;
    line-height: 1.4;
}

#TableOfContents a {
    color: #666;
    text-decoration: none;
    transition: color 0.2s;
    display: block;
    padding: 2px 0;
}

#TableOfContents a:hover {
    color: #2a6f97;
}

/* 目录层级缩进 */
#TableOfContents ul ul {
    margin-left: 15px;
    padding-left: 0;
}

#TableOfContents ul ul ul {
    margin-left: 10px;
}

/* 当前目录项高亮 */
#TableOfContents li.active > a {
    color: #2a6f97;
    font-weight: 600;
}

.recent-posts {
    list-style: none;
    padding: 0;
}

.recent-posts li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed #eee;
}

.recent-posts li:last-child {
    border-bottom: none;
}

.recent-posts a {
    color: #555;
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.4;
}

.recent-posts a:hover {
    color: #2a6f97;
}

@media (max-width: 991px) {
    .sidebar {
        padding-left: 0;
        margin-top: 40px;
    }
    
    .sidebar-container {
        position: static;
    }
    
    .sidebar-avatar img {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 767px) {
    .sidebar {
        padding: 0;
    }
    
    .sidebar-module {
        padding: 15px;
    }
    
    /* 移动端目录优化 */
    .single-page .sidebar-module.toc-module {
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: auto;
        max-width: 300px;
        max-height: 60vh;
        overflow: hidden;
        z-index: 1000;
        display: none; /* 默认隐藏，通过按钮控制 */
    }
    
    .single-page .toc-toggle-button {
        display: block !important;
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background: #2a6f97;
        color: white;
        border: none;
        cursor: pointer;
        z-index: 1001;
        box-shadow: 0 4px 12px rgba(42, 111, 151, 0.3);
    }
}

/* ========================================== */
/* 首页卡片布局优化 - 减少留白，变宽 */
/* ========================================== */

/* 首页容器优化 */
.home .container,
.container {
    max-width: 1400px !important;
    padding: 0 15px !important;
}

/* 减少行边距 */
.home .row {
    margin-left: -5px !important;
    margin-right: -5px !important;
}

/* 减少列边距（仅作用于首页） */
.home .col-lg-4,
.home .col-md-6,
.home .col-sm-12,
.home .col-lg-3,
.home .col-md-4,
.home .col-sm-6 {
    padding-left: 5px !important;
    padding-right: 5px !important;
}

/* 核心功能和特色卡片 */
.home .card,
.home .feature-card,
.home .research-card,
.nav-card,
.category-card {
    width: 100% !important;
    margin-bottom: 15px !important;
    border: none !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08) !important;
    transition: all 0.3s ease !important;
    padding: 20px !important;
    background: white !important;
}

.home .card:hover,
.home .feature-card:hover,
.home .research-card:hover,
.nav-card:hover,
.category-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15) !important;
}

/* 确保卡片在同一行显示 */
@media (min-width: 992px) {
    .home .card,
    .home .feature-card,
    .home .research-card,
    .nav-card,
    .category-card {
        height: 100%;
        margin-bottom: 20px;
    }
}

/* 卡片内部布局优化 */
.home .card-body,
.card-body {
    padding: 0 !important;
}

.home .card-img-top,
.card-img-top {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 15px;
}

.home .card-title,
.card-title {
    font-size: 1.3rem !important;
    margin-bottom: 12px;
    color: #2a6f97;
    font-weight: 600;
}

.home .card-text,
.card-text {
    font-size: 1rem !important;
    line-height: 1.6;
    color: #555;
    margin-bottom: 15px;
}

/* 网格布局优化 */
.nav-grid,
.category-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
    gap: 15px !important;
    margin-top: 20px !important;
}

/* 按钮样式优化 */
.btn,
.card-link {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, #2a6f97 0%, #1b4b63 100%);
    color: white !important;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn:hover,
.card-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(42, 111, 151, 0.3);
}

/* 特定区域间距调整 */
.features-section,
.research-section {
    padding: 30px 0 !important;
}

.section-header {
    margin-bottom: 30px !important;
}

/* 移除不必要的边距 */
.mb-5,
.my-5,
.mt-5 {
    margin-bottom: 30px !important;
    margin-top: 30px !important;
}

.py-5,
.pt-5,
.pb-5 {
    padding-top: 30px !important;
    padding-bottom: 30px !important;
}

@media (max-width: 768px) {
    .home .container,
    .container {
        padding: 0 10px !important;
    }
    
    .home .card,
    .home .feature-card,
    .home .research-card,
    .nav-card,
    .category-card {
        margin-bottom: 15px !important;
        padding: 15px !important;
    }
    
    .home .card-img-top,
    .card-img-top {
        height: 140px;
    }
    
    .nav-grid,
    .category-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
}

/* ========================================== */
/* 其他原有样式 */
/* ========================================== */

.research-type {
    background-color: #e3f2fd;
    color: #1565c0;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.research-status {
    background-color: #f3e5f5;
    color: #7b1fa2;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.research-tags .tag {
    display: inline-block;
    background-color: #f5f5f5;
    color: #666;
    padding: 2px 8px;
    margin-right: 5px;
    margin-bottom: 5px;
    border-radius: 3px;
    font-size: 0.85rem;
}

.research-abstract {
    background-color: #f9f9f9;
    padding: 15px;
    border-left: 4px solid #007acc;
    margin: 20px 0;
}

.research-content {
    line-height: 1.8;
    font-size: 1.1rem;
}

.research-downloads, .research-citation {
    margin-top: 30px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 5px;
}

.research-navigation {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-between;
}

.research-navigation .prev,
.research-navigation .next {
    width: 48%;
}

@media (max-width: 768px) {
    .research-navigation {
        flex-direction: column;
    }
    
    .research-navigation .prev,
    .research-navigation .next {
        width: 100%;
        margin-bottom: 10px;
    }
}

.knowledge-nav {
    margin: 40px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
}

.article-link {
    color: #555;
    text-decoration: none;
    padding: 5px 10px;
    border-left: 3px solid #2a6f97;
    transition: all 0.2s ease;
    display: block;
    font-size: 0.9rem;
}

.article-link:hover {
    background: #f5f5f5;
    color: #333;
    padding-left: 15px;
}

.recent-updates {
    margin: 50px 0;
    padding: 30px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 10px;
}

.recent-articles {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.recent-article {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.recent-article:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.subject-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
}

.subject-tag {
    background: linear-gradient(135deg, #2a6f97 0%, #1b4b63 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.subject-tag:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(42, 111, 151, 0.3);
}

.knowledge-list {
    margin-top: 30px;
}

.knowledge-item {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid #2a6f97;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.knowledge-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.subject-title .subject-count {
    font-size: 1rem;
    color: #6b7c85;
    font-weight: normal;
    margin-left: 10px;
}

.post-card-header {
    margin-bottom: 15px;
}

.post-card-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: #6b7c85;
    align-items: center;
}

.post-card-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.post-card-tags .tag {
    background: #f0f7ff;
    color: #2a6f97;
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid #d1e3ff;
}

.post-controls {
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    border: 1px solid #eaeaea;
}

.no-content-message {
    text-align: center;
    padding: 60px 20px;
    color: #6b7c85;
    background: #f8f9fa;
    border-radius: 8px;
    border: 2px dashed #dee2e6;
}



/* ========================================== */
/* 首页企业级布局重构 */
/* ========================================== */

/* 重置首页容器 */
.home .container {
    max-width: 1400px !important;
    padding: 0 20px !important;
    margin: 0 auto;
}

/* 移除行和列的边距 */
.home .row {
    margin-left: 0 !important;
    margin-right: 0 !important;
    display: flex !important;
    flex-wrap: wrap !important;
}

.home .col-md-4,
.home .col-md-6,
.home .col-lg-3,
.home .col-lg-8,
.home .col-lg-4 {
    padding-left: 0 !important;
    padding-right: 0 !important;
    flex: 0 0 auto !important;
}

/* ========================================== */
/* 企业级英雄区域 */
/* ========================================== */

.hero-section {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #1a237e 0%, #2a6f97 100%);
    color: white;
    margin-bottom: 0;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem !important;
    font-weight: 800 !important;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.5rem !important;
    font-weight: 300 !important;
    margin-bottom: 30px;
    max-width: 800px;
    line-height: 1.6;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem !important;
    line-height: 1.7;
    max-width: 700px;
    margin-bottom: 40px;
    opacity: 0.85;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

/* ========================================== */
/* 2026-03-12 Academic layout refresh */
/* ========================================== */

body {
    font-size: 17px;
    line-height: 1.82;
    color: #20303f;
}

body,
.post-container,
.navbar-custom .nav > li > a,
.navbar-custom .navbar-brand {
    font-family: "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6,
.brand-text,
.navbar-custom .nav > li > a,
.qv-section-title,
.qv-panel__title,
.qv-entry-card__title,
.article-title {
    font-family: "Noto Serif SC", "Source Han Serif SC", serif;
    letter-spacing: 0.02em;
}

.navbar-custom {
    min-height: 78px;
    background: rgba(248, 250, 252, 0.96) !important;
    border-bottom: 1px solid rgba(33, 61, 87, 0.08);
    box-shadow: 0 12px 30px rgba(15, 34, 54, 0.06);
}

.navbar-custom .navbar-brand {
    padding: 22px 0;
    gap: 12px;
}

.brand-logo {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
}

.navbar-custom .navbar-brand .brand-text {
    font-size: 1.62rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.navbar-custom .nav > li > a {
    font-size: 1rem;
    font-weight: 600;
    padding: 29px 18px 25px;
    color: #21374c;
}

.navbar-custom .nav > li > a::after,
.navbar-custom .nav > .active > a::after {
    bottom: 16px;
    background: linear-gradient(90deg, #14344c 0%, #2a6f97 100%);
}

.nav-search {
    padding: 29px 15px 25px;
}

.intro-header.single-page-header {
    position: relative;
    overflow: hidden;
}

.intro-header.single-page-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 28, 43, 0.84), rgba(17, 69, 94, 0.62));
}

.intro-header.single-page-header .container {
    position: relative;
    z-index: 1;
}

.single-page-header .post-heading,
.qv-search-header .post-heading {
    max-width: 920px;
    margin: 0 auto;
    padding: 18px 0 12px;
}

.qv-article-header__topline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.qv-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.94);
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.qv-divider-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.55);
}

.single-article .article-title,
.qv-search-header .article-title {
    font-size: clamp(2.2rem, 3vw, 3.25rem);
    line-height: 1.22;
    margin-bottom: 14px;
}

.single-article .subheading {
    font-size: 1.2rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 12px;
}

.qv-article-header__summary {
    max-width: 820px;
    font-size: 1.06rem;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 18px;
}

.single-article .article-meta {
    gap: 16px 22px;
    font-size: 0.94rem;
    margin-bottom: 18px;
}

.single-article .article-tags .tag {
    padding: 0.38rem 0.78rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
}

.qv-page-frame {
    max-width: 1460px;
}

.qv-shell {
    display: grid;
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr) minmax(240px, 300px);
    gap: 28px;
    align-items: start;
}

.qv-main {
    min-width: 0;
}

.qv-rail {
    position: sticky;
    top: 102px;
    align-self: start;
}

.qv-panel,
.qv-article-card,
.qv-page-card,
.qv-hero-card,
.subject-group,
.qv-search-hit {
    background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(247,250,252,0.98));
    border: 1px solid rgba(28, 70, 102, 0.09);
    border-radius: 20px;
    box-shadow: 0 18px 44px rgba(17, 40, 61, 0.08);
}

.qv-panel {
    padding: 22px 20px;
    margin-bottom: 20px;
}

.qv-panel__eyebrow,
.qv-hero-card__eyebrow,
.qv-panel__subtle {
    margin: 0 0 10px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #6b8194;
}

.qv-panel__title {
    font-size: 1.12rem;
    line-height: 1.45;
    margin: 0 0 14px;
    color: #173147;
}

.qv-panel__note {
    margin: 0;
    font-size: 0.94rem;
    color: #5f7385;
}

.qv-panel__toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.92rem;
    color: #2a6f97;
    text-decoration: none;
    margin-bottom: 14px;
}

.qv-directory ul,
.qv-link-list,
.qv-inline-list,
.qv-side-catalog ul,
.catalog-body {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qv-directory li,
.qv-link-list li,
.catalog-body li {
    margin-bottom: 8px;
}

.qv-directory a,
.qv-link-list a,
.catalog-body a,
.qv-mini-links a {
    display: block;
    padding: 9px 12px;
    border-radius: 12px;
    color: #26445d;
    text-decoration: none;
    background: rgba(225, 235, 243, 0.34);
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.qv-directory a:hover,
.qv-link-list a:hover,
.catalog-body a:hover,
.qv-mini-links a:hover,
.catalog-body li.active a {
    color: #0e2f44;
    background: rgba(42, 111, 151, 0.14);
    transform: translateX(2px);
}

.qv-mini-links {
    display: grid;
    gap: 8px;
    margin-top: 16px;
}

.qv-inline-list {
    display: grid;
    gap: 10px;
}

.qv-inline-list li {
    position: relative;
    padding-left: 16px;
    font-size: 0.94rem;
    color: #4e6679;
}

.qv-inline-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.76em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #2a6f97;
}

.qv-inline-list--facts li {
    padding-left: 0;
    padding-bottom: 10px;
    border-bottom: 1px dashed rgba(38, 68, 93, 0.14);
}

.qv-inline-list--facts li::before {
    display: none;
}

.qv-identity__avatar {
    width: 104px;
    height: 104px;
    margin-bottom: 16px;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(21, 62, 90, 0.12);
    box-shadow: 0 10px 24px rgba(18, 47, 70, 0.12);
}

.qv-identity__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qv-identity__description {
    margin: 0 0 14px;
    font-size: 0.96rem;
    line-height: 1.75;
    color: #4f6578;
}

.qv-social-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.qv-social-row a {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(42, 111, 151, 0.08);
    color: #1d4e6c;
    text-decoration: none;
}

.qv-social-row a:hover {
    background: #1d4e6c;
    color: #fff;
}

.qv-hero-card,
.qv-page-card,
.qv-article-card {
    padding: 28px 30px;
}

.qv-section-title {
    margin: 0;
    font-size: clamp(2rem, 2.3vw, 2.7rem);
    color: #163147;
}

.qv-section-intro,
.qv-page-prose,
.qv-article-prose {
    margin-top: 16px;
    font-size: 1.04rem;
    line-height: 1.92;
    color: #22384d;
}

.qv-page-prose h2,
.qv-article-prose h2 {
    font-size: 1.7rem;
    margin-top: 2.4rem;
    margin-bottom: 0.9rem;
    color: #14324a;
}

.qv-page-prose h3,
.qv-article-prose h3 {
    font-size: 1.34rem;
    margin-top: 1.8rem;
    margin-bottom: 0.72rem;
    color: #1d425d;
}

.qv-page-prose p,
.qv-article-prose p,
.qv-page-prose li,
.qv-article-prose li {
    font-size: 1rem;
}

.qv-page-prose blockquote,
.qv-article-prose blockquote {
    border-left: 4px solid #1d5b81;
    background: rgba(217, 230, 239, 0.38);
    border-radius: 0 14px 14px 0;
}

.subject-group {
    padding: 22px 22px 12px;
    margin-top: 22px;
}

.subject-header {
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 0;
}

.subject-title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin: 0;
    font-size: 1.36rem;
    color: #17354d;
}

.subject-title .subject-count {
    font-size: 0.96rem;
    color: #718697;
}

.subject-posts,
.section-list-by-date,
.section-list-flat {
    display: grid;
    gap: 16px;
}

.post-card-item,
.section-list-card {
    margin: 0;
}

.qv-entry-card {
    padding: 18px 20px;
    border-radius: 16px;
    border: 1px solid rgba(24, 59, 86, 0.08);
    background: #fff;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.qv-entry-card:hover {
    transform: translateY(-3px);
    border-color: rgba(42, 111, 151, 0.22);
    box-shadow: 0 14px 28px rgba(14, 45, 68, 0.08);
}

.qv-entry-card__head,
.qv-entry-card__meta,
.qv-search-hit__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    align-items: center;
}

.qv-entry-card__kicker,
.qv-entry-card__date,
.qv-entry-card__meta,
.qv-search-hit__meta {
    font-size: 0.82rem;
    color: #627889;
}

.qv-entry-card__kicker {
    padding: 0.22rem 0.68rem;
    border-radius: 999px;
    background: rgba(29, 91, 129, 0.1);
    color: #1d5b81;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.qv-entry-card__title {
    margin: 12px 0 10px;
    font-size: 1.2rem;
    line-height: 1.5;
}

.qv-entry-card__title a,
.qv-search-hit__title a {
    color: #15344a;
    text-decoration: none;
}

.qv-entry-card__title a:hover,
.qv-search-hit__title a:hover {
    color: #1d5b81;
}

.qv-entry-card__summary,
.qv-search-hit__summary {
    margin: 0 0 12px;
    font-size: 0.96rem;
    line-height: 1.78;
    color: #455c6f;
}

.qv-entry-card__meta span,
.qv-search-hit__meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.qv-search-hit__meta .qv-meta-chip {
    padding: 0.18rem 0.62rem;
    border-radius: 999px;
    border: 1px solid rgba(57, 97, 133, 0.2);
    background: linear-gradient(120deg, #f6fbff 0%, #eef5ff 100%);
    color: #3a607e;
    font-weight: 600;
}

.qv-search-hit__meta .qv-meta-chip i {
    color: #2f6ea0;
}

.qv-search-hit__meta .qv-meta-chip--date i {
    color: #337ab8;
}

.qv-entry-card__tags,
.qv-chip-list,
.qv-search-hit__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.qv-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    background: rgba(223, 233, 240, 0.7);
    color: #35556d;
    font-size: 0.82rem;
}

.qv-article-nav {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(24, 59, 86, 0.08);
}

.qv-article-nav a {
    flex: 1 1 280px;
    min-height: 96px;
    padding: 16px 18px;
    border-radius: 16px;
    background: rgba(231, 238, 244, 0.55);
    color: #17354d;
    text-decoration: none;
}

.qv-article-nav__label {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #708698;
    margin-bottom: 8px;
}

.qv-search-local__toolbar {
    margin-bottom: 20px;
}

.qv-search-local__label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #24475f;
}

.qv-search-local__inputwrap {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 60px;
    padding: 0 18px;
    border-radius: 16px;
    background: rgba(240, 244, 248, 0.92);
    border: 1px solid rgba(23, 49, 71, 0.1);
}

.qv-search-local__inputwrap i {
    color: #527088;
}

.qv-search-local__inputwrap input {
    flex: 1;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    font-size: 1rem;
    color: #193247;
}

.qv-search-local__clear {
    border: 1px solid rgba(20, 67, 100, 0.16);
    background: linear-gradient(120deg, #f7fbff 0%, #edf5ff 100%);
    color: #1f5a84;
    font-weight: var(--qv-btn-font-weight);
    border-radius: var(--qv-btn-radius);
    min-height: 36px;
    padding: 0 12px;
    box-shadow: 0 6px 14px rgba(20, 67, 100, 0.08);
}

.qv-search-local__clear:hover {
    background: linear-gradient(120deg, #e8f2ff 0%, #dceaff 100%);
}

.qv-search-local__hint,
.qv-search-local__meta {
    margin-top: 10px;
    font-size: 0.92rem;
    color: #627889;
}

.qv-search-local__results {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.qv-search-hit {
    padding: 18px 20px;
}

.qv-search-hit__title {
    margin: 10px 0 10px;
    font-size: 1.15rem;
    line-height: 1.5;
}

.qv-search-empty {
    padding: 28px;
    border-radius: 18px;
    background: rgba(231, 238, 244, 0.7);
    color: #546a7e;
    text-align: center;
}

footer .list-inline.text-center {
    margin-bottom: 18px;
}

.qv-footer-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.qv-footer-meta__main,
.qv-footer-meta__sub {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.footer-home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #17354d;
    text-decoration: none;
}

.footer-home-link:hover {
    color: #1d5b81;
    text-decoration: none;
}

.footer-logo {
    width: 28px;
    height: 28px;
}

.footer-copy,
.footer-icp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 1199px) {
    .qv-shell {
        grid-template-columns: minmax(210px, 240px) minmax(0, 1fr);
    }

    .qv-rail--right {
        grid-column: 1 / -1;
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }

    .qv-rail--right .qv-panel {
        margin-bottom: 0;
    }
}

@media (max-width: 991px) {
    .navbar-custom .navbar-brand {
        padding: 20px 0;
    }

    .navbar-custom .nav > li > a,
    .nav-search {
        padding: 15px 18px;
    }

    .qv-shell {
        grid-template-columns: 1fr;
    }

    .qv-rail {
        position: static;
        order: 2;
    }

    .qv-main {
        order: 1;
    }

    .qv-rail--right {
        display: block;
    }
}

@media (max-width: 767px) {
    body {
        font-size: 16px;
    }

    .qv-hero-card,
    .qv-page-card,
    .qv-article-card,
    .subject-group,
    .qv-panel,
    .qv-search-hit {
        padding: 18px 18px;
        border-radius: 16px;
    }

    .single-article .article-title,
    .qv-search-header .article-title {
        font-size: 2rem;
    }

    .subject-title {
        font-size: 1.2rem;
    }

    .qv-entry-card__title,
    .qv-search-hit__title {
        font-size: 1.08rem;
    }
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.8;
}

/* ========================================== */
/* 紧凑卡片布局 - 无空白并列排列 */
/* ========================================== */

/* 特征卡片区域 - 3个并列 */
.features-grid {
    display: flex !important;
    gap: 0 !important;
    width: 100%;
    margin: 0 !important;
}

.feature-card {
    flex: 1 !important;
    margin: 0 !important;
    border-radius: 0 !important;
    border: 1px solid #eaeaea;
    border-left: none;
    border-top: none;
    transition: all 0.3s ease !important;
    padding: 40px 30px !important;
    height: 100%;
}

.feature-card:first-child {
    border-left: 1px solid #eaeaea;
    border-radius: 12px 0 0 12px !important;
}

.feature-card:last-child {
    border-radius: 0 12px 12px 0 !important;
}

.feature-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
    z-index: 2;
}

.features-grid .feature-card:first-child:hover {
    border-radius: 12px 0 0 12px !important;
}

.features-grid .feature-card:last-child:hover {
    border-radius: 0 12px 12px 0 !important;
}

/* 研究领域卡片区域 - 4个并列 */
.domains-grid {
    display: flex !important;
    gap: 0 !important;
    width: 100%;
    margin: 0 !important;
}

.domain-card {
    flex: 1 !important;
    margin: 0 !important;
    padding: 0 !important;
}

.domain-content {
    margin: 0 !important;
    border-radius: 0 !important;
    border: 1px solid #eaeaea;
    border-left: none;
    border-top: none;
    height: 100%;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 30px 25px !important;
}

.domain-card:first-child .domain-content {
    border-left: 1px solid #eaeaea;
    border-radius: 12px 0 0 12px !important;
}

.domain-card:last-child .domain-content {
    border-radius: 0 12px 12px 0 !important;
}

.domain-card:hover .domain-content {
    transform: translateY(-5px) !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
    z-index: 2;
}

/* 统一卡片标题样式 */
.feature-card h3,
.domain-content h4 {
    font-size: 1.4rem !important;
    font-weight: 700 !important;
    color: #1a237e;
    margin-bottom: 15px;
}

.feature-card p,
.domain-content p {
    font-size: 1rem !important;
    line-height: 1.6;
    color: #546e7a;
    margin-bottom: 20px;
}

/* ========================================== */
/* 增大最新内容字体 */
/* ========================================== */

.recent-content-section .recent-post-card .post-content h3 {
    font-size: 1.4rem !important;
    font-weight: 600 !important;
}

.recent-content-section .recent-post-card .post-content .post-meta {
    font-size: 1rem !important;
}

.recent-content-section .recent-post-card .post-content .post-excerpt {
    font-size: 1.1rem !important;
    line-height: 1.7;
}

.stats-card .stat-number {
    font-size: 2.2rem !important;
}

.stats-card .stat-label {
    font-size: 1rem !important;
}

.quick-links a {
    font-size: 1.1rem !important;
    padding: 12px 15px !important;
}

/* ========================================== */
/* 企业级区块间距 */
/* ========================================== */

.features-section {
    padding: 80px 0 !important;
    background: #f8fafc !important;
}

.domains-section {
    padding: 80px 0 !important;
    background: white !important;
}

.recent-content-section {
    padding: 80px 0 !important;
    background: #f8fafc !important;
}

.section-header {
    margin-bottom: 50px !important;
}

.section-header h2 {
    font-size: 2.5rem !important;
    font-weight: 800 !important;
    color: #1a237e;
    margin-bottom: 15px;
}

.section-header .lead,
.section-header p {
    font-size: 1.2rem !important;
    color: #546e7a;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================== */
/* 响应式设计 */
/* ========================================== */

@media (max-width: 992px) {
    /* 平板：2个卡片一行 */
    .features-grid,
    .domains-grid {
        flex-wrap: wrap;
    }
    
    .feature-card {
        flex: 0 0 50% !important;
        border-bottom: 1px solid #eaeaea;
    }
    
    .feature-card:nth-child(odd) {
        border-left: 1px solid #eaeaea;
        border-radius: 0 !important;
    }
    
    .feature-card:nth-child(even) {
        border-left: none;
        border-radius: 0 !important;
    }
    
    .feature-card:first-child {
        border-radius: 12px 12px 0 0 !important;
    }
    
    .feature-card:nth-child(2) {
        border-radius: 0 12px 0 0 !important;
    }
    
    .feature-card:nth-last-child(2) {
        border-radius: 0 0 0 12px !important;
    }
    
    .feature-card:last-child {
        border-radius: 0 0 12px 0 !important;
    }
    
    /* 研究领域卡片 */
    .domain-card {
        flex: 0 0 50% !important;
    }
    
    .domain-content {
        border-bottom: 1px solid #eaeaea;
    }
    
    .domain-card:nth-child(odd) .domain-content {
        border-left: 1px solid #eaeaea;
    }
    
    .domain-card:nth-child(1) .domain-content {
        border-radius: 12px 0 0 0 !important;
    }
    
    .domain-card:nth-child(2) .domain-content {
        border-radius: 0 12px 0 0 !important;
    }
    
    .domain-card:nth-last-child(2) .domain-content {
        border-radius: 0 0 0 12px !important;
    }
    
    .domain-card:last-child .domain-content {
        border-radius: 0 0 12px 0 !important;
    }
}

@media (max-width: 768px) {
    /* 手机：1个卡片一行 */
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.3rem !important;
    }
    
    .features-grid,
    .domains-grid {
        flex-direction: column;
    }
    
    .feature-card,
    .domain-card {
        flex: 0 0 100% !important;
        border-left: 1px solid #eaeaea !important;
        border-right: 1px solid #eaeaea !important;
    }
    
    .feature-card {
        border-radius: 0 !important;
        border-bottom: none;
    }
    
    .feature-card:first-child {
        border-radius: 12px 12px 0 0 !important;
    }
    
    .feature-card:last-child {
        border-bottom: 1px solid #eaeaea;
        border-radius: 0 0 12px 12px !important;
    }
    
    .domain-content {
        border-radius: 0 !important;
    }
    
    .domain-card:first-child .domain-content {
        border-radius: 12px 12px 0 0 !important;
    }
    
    .domain-card:last-child .domain-content {
        border-radius: 0 0 12px 12px !important;
    }
    
    .section-header h2 {
        font-size: 2rem !important;
    }
}



/* ========================================== */
/* 企业级首页样式 - 美观的卡片设计 */
/* ========================================== */

/* 基础重置 */
.home .container {
    max-width: 1400px !important;
    padding: 0 20px !important;
}

.home .row {
    margin-left: 0 !important;
    margin-right: 0 !important;
}

/* 卡片通用样式 */
.feature-card,
.domain-card,
.value-card,
.recent-post-card,
.stats-card,
.quick-links,
.collab-card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
    will-change: transform, box-shadow;
}

/* 悬停效果增强 */
.feature-card:hover {
    transform: translateY(-12px) scale(1.02) !important;
    box-shadow: 0 25px 60px rgba(0,0,0,0.15) !important;
    z-index: 10;
}

.domain-card:hover {
    transform: translateY(-10px) !important;
    box-shadow: 0 20px 50px rgba(0,0,0,0.12) !important;
}

.value-card:hover {
    transform: translateY(-8px) !important;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1) !important;
}

.recent-post-card:hover {
    transform: translateX(10px) !important;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1) !important;
}

/* 图标动画 */
.feature-icon,
.domain-icon,
.value-icon {
    transition: all 0.3s ease !important;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg) !important;
}

.domain-card:hover .domain-icon {
    transform: scale(1.1) !important;
}

/* 按钮效果 */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease !important;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255,255,255,0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn-primary:hover::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(20, 20);
        opacity: 0;
    }
}

/* 梯度边框效果 */
.gradient-border {
    position: relative;
    border-radius: 20px;
    background: white;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #FF6B6B, #06D6A0, #118AB2, #EF476F);
    border-radius: 22px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gradient-border:hover::before {
    opacity: 1;
}

/* 列表项动画 */
.feature-list li {
    position: relative;
    overflow: hidden;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: #06D6A0;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-list li::before {
    transform: scaleY(1);
}

.feature-card:hover .feature-list li {
    padding-left: 35px;
}

/* 快速链接悬停效果 */
.quick-links a {
    position: relative;
    overflow: hidden;
}

.quick-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: #2a6f97;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.quick-links a:hover::before {
    transform: scaleY(1);
}

/* 响应式优化 */
@media (max-width: 1200px) {
    .col-xl-1 {
        width: 8.33%;  /* 1列 = 8.33% */
    }
    .col-xl-10 {
        width: 83.34%; /* 10列 = 83.34% */
    }
}

@media (max-width: 992px) {
    .hero-section {
        text-align: center;
    }
    
    .hero-stats {
        margin-top: 40px !important;
        max-width: 500px;
        margin-left: auto !important;
        margin-right: auto !important;
    }
    
    .feature-card,
    .domain-card,
    .value-card {
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.5rem !important;
    }
    
    .hero-stats .stat-number {
        font-size: 2.2rem !important;
    }
    
    .section-header h2 {
        font-size: 2rem !important;
    }
    
    .feature-card,
    .domain-card,
    .value-card {
        padding: 30px 20px !important;
    }
    
    .feature-icon,
    .domain-icon,
    .value-icon {
        width: 60px !important;
        height: 60px !important;
        font-size: 1.8rem !important;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.2rem !important;
    }
    
    .hero-description {
        font-size: 1rem !important;
    }
    
    .section-header h2 {
        font-size: 1.8rem !important;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 10px;
    }
}



/* ========================================== */
/* 通用列表页面样式 */
/* ========================================== */

/* 卡片悬停效果 */
.post-card:hover .post-content {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12) !important;
}

/* 学科标题样式 */
.subject-title {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #2a6f97;
    color: #1a237e;
    font-size: 1.8rem;
    font-weight: 700;
}

.subject-count {
    margin-left: 10px;
    font-size: 1.2rem;
    color: #78909c;
    font-weight: 400;
}

/* 文章元数据样式 */
.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 15px 0;
    color: #78909c;
    font-size: 1.1rem;
}

.post-meta i {
    opacity: 0.7;
    margin-right: 5px;
}

/* 标签样式 */
.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.post-tags .tag {
    background: #e3f2fd;
    color: #2a6f97;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 1rem;
    font-weight: 500;
    border: 1px solid #d1e3ff;
    transition: all 0.2s ease;
}

.post-tags .tag:hover {
    background: #2a6f97;
    color: white;
    transform: translateY(-2px);
}

.post-tags .tag-label {
    background: #f0f4ff;
    color: #1a237e;
    font-weight: 700;
    border: 1px solid #d1e3ff;
}

.post-divider {
    border: 0;
    border-top: 1px dashed #e0e6ed;
    margin: 20px 0;
}

.post-body {
    margin-top: 20px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: #2f3941;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
}

.post-nav-link {
    color: #2a6f97;
    text-decoration: none;
    font-weight: 600;
}

.post-nav-link:hover {
    text-decoration: underline;
}

#read-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0;
    background: linear-gradient(90deg, #2a6f97, #118ab2);
    z-index: 9999;
    transition: width 0.1s ease-out;
}
.post-body {
    margin-top: 20px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: #2f3941;
}

/* 阅读更多链接 */
.read-more {
    display: inline-block;
    color: #2a6f97;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: #FF6B6B;
    padding-left: 5px;
}

.read-more i {
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

/* 文章摘要 */
.post-summary {
    color: #546e7a;
    line-height: 1.6;
    font-size: 1.1rem;
    margin: 15px 0;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 3px solid #2a6f97;
}

/* 资源分类样式 */
.resource-category {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border: 1px solid #eaeaea;
}

.category-title {
    display: flex;
    align-items: center;
    color: #1a237e;
    padding-bottom: 15px;
    margin-bottom: 20px;
    border-bottom: 2px solid #eaeaea;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .post-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .subject-title {
        font-size: 1.5rem;
    }
    
    .post-title {
        font-size: 1.3rem !important;
    }
}


/* ========================================== */
/* 文章卡片样式 */
/* ========================================== */

.post-card {
    margin-bottom: 25px;
}

.post-card .post-content {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border-left: 4px solid #2a6f97;
    transition: all 0.3s ease;
    height: 100%;
}

.post-card:hover .post-content {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.post-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a237e;
    margin-bottom: 15px;
    line-height: 1.4;
}

.post-title a {
    color: inherit;
    text-decoration: none;
}

.post-title a:hover {
    color: #FF6B6B;
    text-decoration: underline;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
    color: #78909c;
    font-size: 1.1rem;
}

.post-meta i {
    opacity: 0.7;
    margin-right: 5px;
}

.post-summary {
    color: #546e7a;
    line-height: 1.6;
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 3px solid #2a6f97;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.post-tags .tag {
    background: #e3f2fd;
    color: #2a6f97;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 1rem;
    font-weight: 500;
    border: 1px solid #d1e3ff;
    transition: all 0.2s ease;
}

.post-tags .tag:hover {
    background: #2a6f97;
    color: white;
    transform: translateY(-2px);
}

.read-more {
    display: inline-block;
    color: #2a6f97;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: #FF6B6B;
    padding-left: 5px;
}

.read-more i {
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

/* 状态样式 */
.post-status {
    display: inline-flex;
    align-items: center;
}

.status-in-progress {
    color: #FF6B6B;
}

.status-completed {
    color: #06D6A0;
}

.status-default {
    color: #78909c;
}

.post-status i {
    font-size: 0.8rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .post-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .post-title {
        font-size: 1.3rem;
    }
    
    .post-content {
        padding: 20px;
    }
}





/* ========================================== */
/* 首页精致化优化样式 */
/* ========================================== */

/* 卡片悬停动画优化 */
.feature-card, 
.domain-card, 
.value-card {
    position: relative;
    overflow: hidden;
    transform-origin: center bottom;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                box-shadow 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 60px rgba(0,0,0,0.15) !important;
}

.domain-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.12) !important;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1) !important;
}

/* 按钮悬停效果 */
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255,107,107,0.4) !important;
}

.btn-primary:hover i {
    transform: translateX(5px);
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.1) !important;
    border-color: rgba(255,255,255,0.6) !important;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255,255,255,0.15) !important;
}

/* 图标动画增强 */
.feature-icon,
.domain-icon,
.value-icon {
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.domain-card:hover .domain-icon {
    transform: scale(1.12);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.value-card:hover .value-icon {
    transform: scale(1.1);
}

/* 卡片顶部装饰线条动画 */
.feature-card > div[style*="position: absolute; top: 0"] {
    transition: width 0.4s ease;
}

.feature-card:hover > div[style*="position: absolute; top: 0"] {
    animation: gradientShift 2s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 快速链接优化 */
.quick-links a {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.quick-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--accent-color, #2a6f97);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.quick-links a:hover::before {
    transform: scaleY(1);
}

.quick-links a:hover {
    padding-left: 35px !important;
    background: #f0f7ff !important;
}

.quick-links a:hover i.fa-arrow-right {
    transform: translateX(5px);
    color: #2a6f97 !important;
}

/* 最新文章卡片优化 */
.recent-post-card {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.recent-post-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: #2a6f97;
    border-radius: 4px 0 0 4px;
}

.recent-post-card:hover {
    transform: translateX(10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1) !important;
}

.recent-post-card:hover .post-category {
    transform: scale(1.05);
}

.post-category {
    transition: transform 0.3s ease;
}

/* 统计卡片优化 */
.stats-card .stat-item {
    transition: all 0.3s ease;
}

.stats-card .stat-item:hover {
    transform: translateY(-5px);
}

.stats-card .stat-number {
    position: relative;
}

.stats-card .stat-number::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0.3;
}

/* 合作卡片优化 */
.collab-card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.collab-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(30deg);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.collab-card:hover::before {
    opacity: 1;
}

.collab-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,255,255,0.3) !important;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2) !important;
}

.collab-icon {
    transition: all 0.3s ease;
}

.collab-card:hover .collab-icon {
    transform: scale(1.1);
    background: rgba(255,255,255,0.25) !important;
}

.collab-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.collab-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: white;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.collab-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.collab-link:hover i {
    transform: translateX(5px);
}

/* 标签悬停效果 */
.post-tags .tag {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.post-tags .tag::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(42, 111, 151, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.3s ease;
}

.post-tags .tag:hover::before {
    transform: translate(-50%, -50%) scale(10);
}

.post-tags .tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(42, 111, 151, 0.2);
}

/* 导航下划线动画优化 */
.navbar-custom .nav > li > a::after {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: linear-gradient(135deg, #FF6B6B 0%, #2a6f97 100%);
    box-shadow: 0 2px 10px rgba(255,107,107,0.3);
}

/* 响应式优化增强 */
@media (max-width: 1200px) {
    .col-xl-1 {
        width: 8.33%;  /* 1列 = 8.33% */
    }
    .col-xl-10 {
        width: 83.34%; /* 10列 = 83.34% */
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem !important;
    }
    
    .hero-description {
        font-size: 1.1rem !important;
    }
    
    .feature-card, .domain-card, .value-card {
        margin-bottom: 25px;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 80px 0 50px !important;
    }
    
    .hero-title {
        font-size: 2.4rem !important;
    }
    
    .hero-title span {
        font-size: 1.5rem !important;
    }
    
    .hero-stats {
        padding: 25px 20px !important;
    }
    
    .stat-number {
        font-size: 2rem !important;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .recent-post-card {
        flex-direction: column;
    }
    
    .post-category {
        align-self: flex-start;
        margin-bottom: 15px;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #1a237e 0%, #2a6f97 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #2a6f97 0%, #1a237e 100%);
}

/* 添加优雅的加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* 渐显动画延迟 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* 悬停时文字渐变动画 */
.gradient-text {
    background: linear-gradient(135deg, #FF6B6B 0%, #2a6f97 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 毛玻璃效果增强 */
.glass-effect {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}


/* 优雅的页面过渡 */
* {
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* 图片加载动画 */
img {
    opacity: 0;
    transition: opacity 0.4s ease;
}

img.loaded {
    opacity: 1;
}

/* 加载状态 */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ========================================== */
/* 2026-03-12 Hotfix: usability and consistency */
/* ========================================== */

img {
    opacity: 1 !important;
}

html {
    font-size: 17px;
}

body {
    font-size: 1.04rem;
    line-height: 1.78;
}

.post-container,
.post-container p,
.post-container li,
.post-container blockquote {
    font-size: 1.04rem;
}

.post-meta,
.recent-posts a,
#TableOfContents a,
.site-directory a {
    font-size: 0.98rem;
}

.sidebar-avatar {
    width: 108px;
    height: 108px;
    margin: 0 auto 14px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #cfe0f1;
    background: #eef4fb;
}

.sidebar-avatar img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    display: block;
}

.post-card {
    margin-bottom: 14px !important;
}

.post-card .post-content {
    padding: 18px 18px !important;
    border-radius: 10px;
}

.post-summary {
    margin: 10px 0 12px !important;
    padding: 10px 12px !important;
}

.post-divider {
    margin: 12px 0 !important;
}

.footer-home-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: inherit;
    text-decoration: none;
    margin-right: 8px;
}

.footer-home-link:hover {
    color: #2a6f97;
}

.footer-logo {
    width: 18px;
    height: 18px;
    display: inline-block;
}

.footer-copy {
    white-space: nowrap;
}

.navbar-custom .navbar-brand {
    gap: 8px;
}

.navbar-custom .navbar-brand .brand-logo {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.hp-cta .hp-btn--ghost-dark {
    color: #eaf3ff;
    border-color: rgba(228, 241, 255, 0.65);
    background: rgba(255, 255, 255, 0.04);
}

.hp-cta .hp-btn--ghost-dark:hover {
    color: #ffffff;
    background: rgba(228, 241, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.88);
}

@media (max-width: 768px) {
    html {
        font-size: 16px;
    }

    .post-card .post-content {
        padding: 16px 14px !important;
    }

    .navbar-custom .navbar-brand .brand-logo {
        width: 22px;
        height: 22px;
    }
}

/* ========================================== */
/* Visual consistency refinement */
/* ========================================== */

body {
    font-family: "Manrope", "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
    color: var(--qv-ink);
}

h1, h2, h3, h4,
.section-page .title.is-2,
.subject-title,
.post-title {
    font-family: "Noto Serif SC", "Times New Roman", serif;
    letter-spacing: 0.2px;
}

.subject-group {
    margin-bottom: 2rem;
}

.subject-header {
    margin-bottom: 0.9rem;
}

.subject-title.is-3 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--qv-primary);
    margin: 0;
    padding-bottom: 0.55rem;
    border-bottom: 2px solid var(--qv-accent);
}

.subject-title.is-3 i {
    color: #ff6b6b;
}

.subject-count {
    font-size: 1.03rem;
    color: #6f8296;
    font-weight: 500;
}

.post-card-item {
    margin-bottom: 0.55rem;
}

.post-card .post-content {
    border-left-width: 3px;
    box-shadow: var(--qv-shadow);
}

.post-title {
    font-size: 1.45rem;
}

.post-meta {
    font-size: 1rem;
    color: var(--qv-muted);
    gap: 14px;
}

.post-summary {
    background: var(--qv-bg-soft);
    border-left-color: var(--qv-accent);
    color: #4c6074;
}

.post-tags .tag {
    border-color: #c8daef;
}

.section-intro,
.no-content-message {
    border-radius: var(--qv-radius);
}

.navbar-custom .nav > li > a {
    font-size: 16px;
    font-weight: 600;
}

.footer-home-link,
.footer-copy,
footer .copyright {
    font-size: 0.98rem;
}

@media (max-width: 768px) {
    .subject-title.is-3 {
        font-size: 1.45rem;
    }

    .post-title {
        font-size: 1.28rem;
    }
}

/* ========================================== */
/* 2026-03-12 Navbar brand hotfix */
/* ========================================== */

.navbar-custom .container {
    overflow: visible;
}

.navbar-custom .navbar-header {
    position: relative;
    z-index: 3;
    overflow: visible;
}

.navbar-custom .navbar-brand {
    display: inline-flex !important;
    align-items: center !important;
    gap: 10px !important;
    min-height: 78px;
    max-width: calc(100vw - 180px);
    padding: 20px 0 18px !important;
    line-height: 1 !important;
    white-space: nowrap;
    overflow: visible;
}

.navbar-custom .navbar-brand .brand-logo {
    width: 30px !important;
    height: 30px !important;
    flex: 0 0 30px !important;
    display: block;
}

.navbar-custom .navbar-brand .brand-text {
    display: inline-block;
    font-size: 1.52rem !important;
    line-height: 1.08 !important;
    padding-top: 1px;
    letter-spacing: 0.04em !important;
    white-space: nowrap;
}

.navbar-custom .navbar-collapse {
    overflow: visible;
}

@media (max-width: 1199px) {
    .navbar-custom .navbar-brand {
        max-width: calc(100vw - 120px);
    }

    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.42rem !important;
    }
}

@media (max-width: 991px) {
    .navbar-custom {
        min-height: 72px;
    }

    .navbar-custom .navbar-brand {
        min-height: 72px;
        max-width: calc(100vw - 90px);
        padding: 18px 0 16px !important;
    }

    .navbar-custom .navbar-brand .brand-logo {
        width: 28px !important;
        height: 28px !important;
        flex-basis: 28px !important;
    }

    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.34rem !important;
    }
}

@media (max-width: 480px) {
    .navbar-custom .container {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    .navbar-custom .navbar-brand {
        gap: 8px !important;
        max-width: calc(100vw - 84px);
    }

    .navbar-custom .navbar-brand .brand-logo {
        width: 26px !important;
        height: 26px !important;
        flex-basis: 26px !important;
    }

    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.2rem !important;
        letter-spacing: 0.03em !important;
    }
}

/* ========================================== */
/* 2026-03-12 Navbar rhythm refinement */
/* ========================================== */

:root {
    --qv-nav-height: 78px;
    --qv-nav-item-height: 78px;
    --qv-nav-link-hpad: 16px;
}

.navbar-custom {
    min-height: var(--qv-nav-height);
}

.navbar-custom .container {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
}

.navbar-custom .navbar-header {
    display: flex;
    align-items: center;
    min-height: var(--qv-nav-height);
}

.navbar-custom .navbar-brand {
    min-height: var(--qv-nav-item-height);
    height: var(--qv-nav-item-height);
    margin-right: 14px;
}

.navbar-custom .navbar-collapse {
    min-height: var(--qv-nav-height);
}

.qv-nav-items {
    display: flex;
    align-items: stretch;
    gap: 4px;
    margin: 0;
}

.qv-nav-item {
    display: flex;
    align-items: stretch;
}

.qv-nav-link,
.qv-nav-search {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: var(--qv-nav-item-height);
    height: var(--qv-nav-item-height);
    padding: 0 var(--qv-nav-link-hpad) !important;
    line-height: 1 !important;
    border-radius: 0;
}

.qv-nav-link {
    font-size: 0.99rem !important;
    letter-spacing: 0.03em;
}

.qv-nav-item .qv-nav-link::after {
    bottom: 14px !important;
}

.qv-nav-item--search {
    margin-left: 2px;
}

.qv-nav-search {
    width: 44px;
    min-width: 44px;
    padding: 0 !important;
    border-radius: 12px;
    margin-top: calc((var(--qv-nav-height) - 44px) / 2);
    margin-bottom: calc((var(--qv-nav-height) - 44px) / 2);
    min-height: 44px;
    height: 44px;
    background: rgba(29, 91, 129, 0.08);
    transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.qv-nav-search i {
    font-size: 14px;
}

.qv-nav-search:hover,
.qv-nav-search:focus {
    background: rgba(29, 91, 129, 0.16);
    transform: translateY(-1px);
}

@media (max-width: 991px) {
    :root {
        --qv-nav-height: 72px;
        --qv-nav-item-height: 56px;
        --qv-nav-link-hpad: 18px;
    }

    .navbar-custom .container {
        display: block;
    }

    .navbar-custom .navbar-header {
        min-height: var(--qv-nav-height);
    }

    .qv-nav-items {
        display: block;
        gap: 0;
    }

    .qv-nav-item,
    .qv-nav-link {
        display: block;
    }

    .qv-nav-link,
    .qv-nav-search {
        min-height: var(--qv-nav-item-height);
        height: var(--qv-nav-item-height);
        justify-content: flex-start !important;
        border-radius: 0;
        margin: 0;
        width: 100%;
        background: transparent;
    }

    .qv-nav-search {
        padding: 0 var(--qv-nav-link-hpad) !important;
        min-width: auto;
    }
}

/* ========================================== */
/* 2026-03-12 Premium nav and section polish */
/* ========================================== */

:root {
    --qv-display-font: "Cormorant Garamond", "Noto Serif SC", serif;
    --qv-brand-font: "Cinzel", "Cormorant Garamond", "Noto Serif SC", serif;
}

.navbar-custom .navbar-brand {
    min-width: 188px;
    max-width: calc(100vw - 170px);
    padding: 19px 0 17px !important;
    overflow: visible;
}

.navbar-custom .navbar-brand .brand-logo {
    width: 30px !important;
    height: 30px !important;
    margin-right: 2px;
}

.navbar-custom .navbar-brand .brand-text {
    font-family: var(--qv-brand-font);
    font-size: 1.5rem !important;
    line-height: 1.2 !important;
    padding: 0 0 2px;
    letter-spacing: 0.05em !important;
    text-rendering: geometricPrecision;
}

.qv-nav-items {
    gap: 6px;
}

.qv-nav-item .qv-nav-link,
.qv-nav-item .qv-nav-search {
    font-family: var(--qv-display-font);
    font-size: 1.02rem !important;
    font-weight: 600;
}

.qv-nav-link {
    min-width: 92px;
    padding: 0 18px !important;
}

.qv-nav-search {
    width: 42px;
    min-width: 42px;
    min-height: 42px;
    height: 42px;
    margin-top: calc((var(--qv-nav-height) - 42px) / 2);
    margin-bottom: calc((var(--qv-nav-height) - 42px) / 2);
}

.qv-nav-search i {
    font-size: 13px;
}

.container.qv-page-frame {
    width: min(96vw, 1780px) !important;
    max-width: none !important;
    padding-left: 14px !important;
    padding-right: 14px !important;
}

.qv-shell {
    grid-template-columns: minmax(168px, 200px) minmax(0, 1fr) minmax(210px, 248px);
    gap: 18px;
}

.qv-rail {
    top: 94px;
}

.qv-rail--right {
    position: sticky !important;
    top: 94px;
    max-height: calc(100vh - 108px);
    overflow-y: auto;
    padding-right: 2px;
}

.qv-rail--right::-webkit-scrollbar {
    width: 4px;
}

.qv-rail--right::-webkit-scrollbar-thumb {
    background: rgba(38, 80, 109, 0.3);
    border-radius: 999px;
}

.qv-search-header .article-title,
.qv-page--generic .article-title,
.qv-page-frame--section .qv-section-title {
    font-family: var(--qv-display-font);
    letter-spacing: 0.03em;
}

.qv-search-header .article-title,
.single-page-header .article-title {
    font-size: clamp(1.9rem, 2.35vw, 2.55rem);
}

.qv-page-frame--section .qv-section-title {
    font-size: clamp(1.72rem, 1.92vw, 2.15rem);
}

.subject-title.is-3 {
    font-size: 1.46rem;
}

.subject-title.is-3 i {
    display: none !important;
}

@media (max-width: 1400px) {
    .container.qv-page-frame {
        width: min(98vw, 1540px) !important;
    }

    .qv-shell {
        grid-template-columns: minmax(162px, 190px) minmax(0, 1fr) minmax(200px, 232px);
        gap: 14px;
    }
}

@media (max-width: 1199px) {
    .qv-nav-link {
        min-width: 84px;
        padding: 0 14px !important;
    }

    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.36rem !important;
    }
}

@media (max-width: 991px) {
    .container.qv-page-frame {
        width: min(99vw, 1120px) !important;
        padding-left: 10px !important;
        padding-right: 10px !important;
    }

    .qv-rail--right {
        position: static !important;
        max-height: none;
        overflow: visible;
    }

    .navbar-custom .navbar-brand {
        min-width: 158px;
        max-width: calc(100vw - 92px);
    }

    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.28rem !important;
        line-height: 1.16 !important;
    }

    .qv-nav-item .qv-nav-link,
    .qv-nav-item .qv-nav-search {
        font-family: "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
        font-size: 1rem !important;
    }
}

@media (max-width: 480px) {
    .navbar-custom .navbar-brand .brand-text {
        font-size: 1.16rem !important;
    }

    .qv-search-header .article-title,
    .single-page-header .article-title {
        font-size: 2rem;
    }
}

/* ========================================== */
/* 2026-03-12 Final refinement */
/* ========================================== */

:root {
    --qv-menu-font: "Merriweather", "Noto Serif SC", serif;
}

.qv-nav-item .qv-nav-link,
.qv-nav-item .qv-nav-search {
    font-family: var(--qv-menu-font);
    font-size: 1.03rem !important;
    letter-spacing: 0.025em;
}

.container.qv-page-frame {
    width: min(97vw, 1840px) !important;
}

.qv-shell {
    grid-template-columns: minmax(196px, 238px) minmax(0, 1fr) minmax(244px, 300px);
    gap: 20px;
}

.qv-rail {
    top: 98px;
}

.qv-rail--right {
    position: sticky !important;
    top: 98px;
    max-height: calc(100vh - 116px);
    overflow-y: auto;
}

.qv-panel {
    padding: 18px 16px;
}

.qv-panel__eyebrow {
    margin-bottom: 8px;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
}

.qv-panel__title {
    font-size: 0.98rem;
    margin-bottom: 10px;
}

.qv-directory a,
.qv-link-list a,
.catalog-body a,
.qv-mini-links a,
.qv-inline-list li {
    font-size: 0.84rem;
    line-height: 1.45;
}

.qv-inline-list li {
    padding-left: 13px;
}

.qv-search-header .article-title,
.qv-page-frame--section .qv-section-title {
    font-family: "Cormorant Garamond", "Noto Serif SC", serif;
    letter-spacing: 0.04em;
}

.qv-page-frame--section .qv-section-title {
    font-size: clamp(1.68rem, 1.88vw, 2.08rem);
}

.subject-title.is-3 {
    font-size: 1.35rem;
    font-family: "Cormorant Garamond", "Noto Serif SC", serif;
    letter-spacing: 0.03em;
}

.subject-title .subject-count {
    font-size: 0.9rem;
}

.qv-entry-card {
    position: relative;
    padding: 20px 20px 16px;
    border: 1px solid rgba(30, 68, 96, 0.12);
    border-radius: 16px;
    background:
      radial-gradient(120px 70px at 100% 0, rgba(58, 118, 160, 0.12), transparent 60%),
      linear-gradient(180deg, #ffffff 0%, #f9fcff 100%);
    box-shadow: 0 10px 24px rgba(15, 48, 75, 0.08);
}

.qv-entry-card__accent {
    position: absolute;
    left: 0;
    top: 16px;
    bottom: 16px;
    width: 3px;
    border-radius: 999px;
    background: linear-gradient(180deg, #0f2d46 0%, #2b6e96 100%);
}

.qv-entry-card__head {
    padding-left: 10px;
}

.qv-entry-card__title {
    padding-left: 10px;
    margin: 10px 0 8px;
    font-size: 1.22rem;
}

.qv-entry-card__summary {
    padding-left: 10px;
    margin-bottom: 10px;
    font-size: 0.94rem;
    line-height: 1.72;
}

.qv-entry-card__meta,
.qv-entry-card__tags,
.qv-entry-card__foot {
    padding-left: 10px;
}

.qv-entry-card__meta {
    gap: 8px 12px;
    font-size: 0.8rem;
}

.qv-entry-card__read {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: var(--qv-btn-radius);
    font-size: 0.82rem;
    text-decoration: none;
    color: #144364;
    background: linear-gradient(120deg, #f6fbff 0%, #eef6ff 100%);
    border: 1px solid rgba(20, 67, 100, 0.2);
    font-weight: var(--qv-btn-font-weight);
    box-shadow: var(--qv-btn-shadow);
}

.qv-entry-card__read:hover {
    color: #fff;
    background: linear-gradient(120deg, #144364 0%, #1f5a84 100%);
}

.subject-group--stock-trading {
    border: 1px solid rgba(19, 107, 90, 0.25);
    box-shadow: 0 14px 28px rgba(24, 97, 84, 0.1);
    position: relative;
    animation: qvGroupReveal 0.42s ease-out;
}

.subject-group--experience {
    border: 1px solid rgba(42, 111, 151, 0.24);
    box-shadow: 0 14px 28px rgba(20, 67, 100, 0.1);
    position: relative;
    animation: qvGroupReveal 0.52s ease-out;
}

.subject-group--stock-trading:hover,
.subject-group--experience:hover {
    transform: translateY(-2px);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.subject-group--stock-trading:hover {
    box-shadow: 0 18px 32px rgba(24, 97, 84, 0.14);
}

.subject-group--experience:hover {
    box-shadow: 0 18px 32px rgba(20, 67, 100, 0.14);
}

.subject-group--stock-trading .subject-header,
.subject-group--experience .subject-header {
    position: relative;
    border-bottom: 0;
    padding-bottom: 10px;
}

.subject-group--stock-trading .subject-header::after,
.subject-group--experience .subject-header::after {
    content: none;
}

.qv-subject-icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.86rem;
}

.subject-group--stock-trading .qv-subject-icon {
    color: #126c5a;
    background: rgba(28, 163, 133, 0.16);
    transition: transform 0.2s ease, background 0.2s ease;
}

.subject-group--experience .qv-subject-icon {
    color: #205e8f;
    background: rgba(69, 138, 202, 0.16);
    transition: transform 0.2s ease, background 0.2s ease;
}

.subject-group--stock-trading:hover .qv-subject-icon,
.subject-group--experience:hover .qv-subject-icon {
    transform: translateY(-1px) scale(1.04);
}

.subject-group--stock-trading .post-card-item,
.subject-group--experience .post-card-item {
    transition: transform 0.2s ease;
}

.subject-group--stock-trading .post-card-item:hover,
.subject-group--experience .post-card-item:hover {
    transform: translateY(-2px);
}

@keyframes qvGroupReveal {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.subject-posts--grouped {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.qv-track-group {
    border: 1px solid rgba(20, 67, 100, 0.14);
    border-radius: 14px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fbfe 100%);
    padding: 12px 12px 14px;
}

.qv-track-group__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 4px 4px 10px;
    border-bottom: 1px solid rgba(20, 67, 100, 0.12);
    margin-bottom: 12px;
}

.qv-track-group__title {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #103651;
}

.qv-track-group__count {
    font-size: 0.8rem;
    color: #355a74;
    background: rgba(19, 64, 94, 0.1);
    border: 1px solid rgba(19, 64, 94, 0.18);
    border-radius: 999px;
    padding: 2px 8px;
}

.qv-track-group__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(278px, 1fr));
    gap: 12px;
}

.qv-track-group--classic {
    border-color: rgba(43, 110, 150, 0.28);
}

.qv-track-group--frontier {
    border-color: rgba(35, 126, 101, 0.28);
    background: linear-gradient(180deg, #ffffff 0%, #f4fbf8 100%);
}

.qv-track-group--frontier .qv-track-group__title {
    color: #145743;
}

.qv-track-group--frontier .qv-track-group__count {
    color: #1a6b54;
    background: rgba(26, 107, 84, 0.12);
    border-color: rgba(26, 107, 84, 0.2);
}

.qv-track-group--other {
    border-style: dashed;
}

@media (max-width: 1400px) {
    .qv-shell {
        grid-template-columns: minmax(188px, 224px) minmax(0, 1fr) minmax(234px, 286px);
    }
}

@media (max-width: 1199px) {
    .qv-shell {
        grid-template-columns: minmax(180px, 214px) minmax(0, 1fr);
        gap: 16px;
    }

    .qv-rail--right {
        position: static !important;
        max-height: none;
        overflow: visible;
    }
}

@media (max-width: 991px) {
    .qv-panel {
        padding: 16px 14px;
    }

    .qv-search-header .article-title,
    .qv-page-frame--section .qv-section-title {
        letter-spacing: 0.02em;
    }
}

/* ========================================== */
/* 2026-03-13 Deep fine-tune */
/* ========================================== */

@import url("https://fonts.googleapis.com/css2?family=Merriweather:wght@700;800&display=swap");

:root {
    --qv-nav-clearance: 88px;
}

body {
    scroll-padding-top: var(--qv-nav-clearance);
}

.intro-header.single-page-header,
.intro-header.qv-search-header {
    margin-top: var(--qv-nav-clearance);
}

.post-container h1,
.post-container h2,
.post-container h3,
.post-container h4,
.post-container h5,
.post-container h6 {
    scroll-margin-top: calc(var(--qv-nav-clearance) + 16px);
}

.qv-wordmark,
.brand-text,
.qv-wordmark--footer {
    font-family: var(--qv-brand-font) !important;
    letter-spacing: 0.05em;
}

.footer-home-link {
    gap: 8px;
    margin-right: 2px;
}

.footer-logo {
    width: 24px;
    height: 24px;
}

.qv-wordmark--footer {
    font-size: 1.08rem;
    line-height: 1.1;
}

.footer-copy {
    font-size: 1.08rem;
    line-height: 1.1;
    margin-left: 4px;
}

.qv-footer-meta__main {
    gap: 6px;
}

.qv-nav-item .qv-nav-link,
.qv-nav-item .qv-nav-search {
    font-family: var(--qv-menu-font) !important;
    font-weight: 800;
}

.qv-page-frame--section .qv-section-title,
.subject-title.is-3 {
    font-family: var(--qv-brand-font);
    font-weight: 700;
    letter-spacing: 0.04em;
}

.container.qv-page-frame {
    width: min(98vw, 1860px) !important;
}

.qv-shell {
    grid-template-columns: minmax(216px, 268px) minmax(0, 1fr) minmax(266px, 332px);
    gap: 18px;
}

.qv-panel {
    padding: 16px 14px;
    overflow: visible;
}

.qv-panel__eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
}

.qv-panel__toggle {
    font-size: 0.84rem;
    margin-bottom: 10px;
}

.qv-directory a,
.qv-link-list a,
.catalog-body a,
.qv-mini-links a,
.qv-inline-list li {
    font-size: 0.82rem;
    white-space: normal;
    word-break: break-word;
}

.qv-mini-links a,
.qv-directory a,
.qv-link-list a,
.catalog-body a {
    padding: 8px 10px;
}

.qv-rail {
    top: 106px;
}

.qv-rail--right {
    position: sticky !important;
    top: 106px;
    max-height: calc(100vh - 124px);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.qv-rail--left .catalog-body li {
    margin-bottom: 6px;
}

@media (max-width: 1400px) {
    .qv-shell {
        grid-template-columns: minmax(204px, 248px) minmax(0, 1fr) minmax(250px, 304px);
    }
}

@media (max-width: 1199px) {
    .qv-shell {
        grid-template-columns: minmax(196px, 232px) minmax(0, 1fr);
    }
}

@media (max-width: 991px) {
    :root {
        --qv-nav-clearance: 80px;
    }

    .intro-header.single-page-header,
    .intro-header.qv-search-header {
        margin-top: var(--qv-nav-clearance);
    }

    .qv-rail--right {
        position: static !important;
        max-height: none;
        overflow: visible;
    }

    .qv-wordmark--footer,
    .footer-copy {
        font-size: 1rem;
    }
}

/* ========================================== */
/* 2026-03-13 Layout consistency and article polish */
/* ========================================== */

.qv-rail--left .qv-panel {
    padding-top: 14px;
}

.qv-rail--left .qv-panel__eyebrow {
    margin-bottom: 10px;
}

.qv-panel__toggle,
.catalog-body a,
.qv-mini-links a,
.qv-directory a,
.qv-link-list a {
    display: flex;
    align-items: center;
    min-height: 36px;
    line-height: 1.35;
}

.catalog-body li {
    margin-bottom: 7px;
}

.catalog-body a {
    padding: 7px 10px;
    border-radius: 10px;
}

.qv-main--section > *:first-child {
    margin-top: 0;
}

.qv-main--section .knowledge-hierarchy,
.qv-main--section .section-list-by-date,
.qv-main--section .section-list-flat {
    margin-top: 2px;
}

.single-article .qv-article-card {
    border-radius: 20px;
    border: 1px solid rgba(20, 56, 83, 0.12);
    background:
      radial-gradient(180px 120px at 100% 0, rgba(45, 115, 156, 0.12), transparent 65%),
      linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    box-shadow: 0 16px 36px rgba(16, 46, 72, 0.12);
    overflow: hidden;
}

.single-article .qv-article-prose {
    position: relative;
    padding: 6px 4px 4px;
}

.single-article .qv-article-prose > * {
    position: relative;
    z-index: 1;
}

.single-article .qv-article-prose::before {
    content: "";
    position: absolute;
    left: -30px;
    top: 20px;
    bottom: 26px;
    width: 3px;
    border-radius: 999px;
    background: linear-gradient(180deg, #153f5f 0%, #2d739c 100%);
}

.single-article .qv-article-prose p,
.single-article .qv-article-prose li {
    font-size: 1.04rem;
    line-height: 1.92;
    color: #223b50;
}

.single-article .qv-article-prose h2 {
    font-family: "Cormorant Garamond", "Noto Serif SC", serif;
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-top: 2.4rem;
}

.single-article .qv-article-prose h3 {
    font-family: "Cormorant Garamond", "Noto Serif SC", serif;
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.single-article .qv-article-prose blockquote {
    margin: 1.7rem 0;
    border-left: 4px solid #1c5a80;
    background: rgba(227, 238, 247, 0.55);
    border-radius: 0 14px 14px 0;
    color: #36556d;
}

.single-article .qv-article-prose pre,
.single-article .qv-article-prose table,
.single-article .qv-article-prose img {
    border-radius: 12px;
    overflow: hidden;
}

.single-article .qv-article-nav {
    margin: 22px 24px 24px;
    padding-top: 18px;
}

.single-article .qv-article-nav a {
    border: 1px solid rgba(20, 67, 100, 0.14);
    background: rgba(237, 244, 249, 0.72);
}

@media (max-width: 991px) {
    .single-article .qv-article-prose::before {
        left: -16px;
    }
}

/* ========================================== */
/* 2026-04-02 Tutorial chapter system */
/* ========================================== */

:root {
    --tutorial-primary: #163a59;
    --tutorial-accent: #2e6d96;
    --tutorial-bg-soft: #f7fafc;
    --tutorial-bg-definition: #eef5ff;
    --tutorial-bg-theorem: #fff7eb;
    --tutorial-bg-note: #f4fbf5;
    --tutorial-border-definition: #9bbce8;
    --tutorial-border-theorem: #ebbd7a;
    --tutorial-border-note: #8fc8a0;
}

.tutorial-page .tutorial-shell {
    grid-template-columns: minmax(188px, 232px) minmax(0, 1fr);
    gap: 22px;
}

.tutorial-page .qv-main--single {
    max-width: 980px;
}

.tutorial-page .qv-article-card {
    padding: 2px;
}

.tutorial-page .qv-article-prose::before {
    background: linear-gradient(180deg, #1e4f73 0%, #4f87ad 100%);
}

.tutorial-breadcrumb {
    margin: 0 0 1.6rem;
    padding: 0 0 0.9rem;
    border-bottom: 1px dashed rgba(21, 67, 99, 0.25);
}

.tutorial-back-link {
    color: var(--tutorial-primary);
    text-decoration: none;
    font-weight: 600;
}

.tutorial-back-link:hover {
    color: var(--tutorial-accent);
    text-decoration: underline;
}

.tutorial-foot-return {
    margin: 0 24px 20px;
    padding-top: 10px;
    border-top: 1px dashed rgba(20, 67, 100, 0.2);
}

.tutorial-mode {
    max-width: 780px;
    margin: 0 auto;
    font-size: 1.08rem;
    line-height: 1.86;
}

.tutorial-mode p,
.tutorial-mode li {
    font-size: 1.06rem;
    line-height: 1.9;
    color: #203b51;
}

.tutorial-mode h2 {
    margin-top: 2.2rem;
    margin-bottom: 0.8rem;
    padding-bottom: 0.45rem;
    border-bottom: 2px solid rgba(22, 58, 89, 0.12);
}

.tutorial-mode h3 {
    margin-top: 1.7rem;
    margin-bottom: 0.55rem;
    color: #173a57;
}

.tutorial-mode h4 {
    margin-top: 1.2rem;
    margin-bottom: 0.45rem;
    color: #224f72;
}

.tutorial-mode blockquote {
    border-left: 5px solid var(--tutorial-accent);
    background: var(--tutorial-bg-soft);
    border-radius: 0 12px 12px 0;
    padding: 14px 16px;
}

.tutorial-mode pre {
    background: #1f2e3d;
    border: 1px solid rgba(94, 131, 163, 0.28);
}

.tutorial-mode table {
    border: 1px solid rgba(36, 80, 109, 0.15);
    background: #fff;
}

.tutorial-mode thead {
    background: #eef5fb;
}

.tutorial-mode mjx-container[display="true"],
.tutorial-mode .katex-display {
    margin: 1.5rem 0;
    padding: 12px 14px;
    background: #f8fbff;
    border-left: 4px solid #6a8fb4;
    border-radius: 0 10px 10px 0;
    overflow-x: auto;
}

.tutorial-mode .tutorial-definition {
    margin: 1.4rem 0;
    padding: 12px 14px;
    background: var(--tutorial-bg-definition);
    border: 1px solid var(--tutorial-border-definition);
    border-left: 5px solid #4f7eb8;
    border-radius: 0 10px 10px 0;
}

.tutorial-mode .tutorial-theorem {
    margin: 1.4rem 0;
    padding: 12px 14px;
    background: var(--tutorial-bg-theorem);
    border: 1px solid var(--tutorial-border-theorem);
    border-left: 5px solid #d48a29;
    border-radius: 0 10px 10px 0;
}

.tutorial-mode .tutorial-note {
    margin: 1.3rem 0;
    padding: 11px 13px;
    background: var(--tutorial-bg-note);
    border: 1px solid var(--tutorial-border-note);
    border-left: 4px solid #4a9a62;
    border-radius: 0 10px 10px 0;
}

@media (max-width: 1199px) {
    .tutorial-page .tutorial-shell {
        grid-template-columns: minmax(176px, 218px) minmax(0, 1fr);
        gap: 16px;
    }
}

@media (max-width: 991px) {
    .tutorial-page .tutorial-shell {
        grid-template-columns: minmax(0, 1fr);
    }

    .tutorial-page .qv-rail--left {
        position: static;
        max-height: none;
    }

    .tutorial-mode {
        max-width: none;
        font-size: 1.02rem;
        line-height: 1.8;
    }
}

@media (max-width: 768px) {
    .tutorial-mode p,
    .tutorial-mode li {
        font-size: 1rem;
        line-height: 1.76;
    }

    .tutorial-mode table,
    .tutorial-mode pre,
    .tutorial-mode mjx-container[display="true"],
    .tutorial-mode .katex-display {
        overflow-x: auto;
    }
}