/* ========================================
   SEO Blog - 前台样式 (极简工业风)
   参考: SUNS Glassware 风格
   ======================================== */

/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --color-white: #ffffff;
    --color-black: #111111;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #e5e5e5;
    --color-border-light: #f0f0f0;
    --color-bg: #ffffff;
    --color-bg-light: #fafafa;
    --color-bg-dark: #f5f5f5;
    --color-accent: #111111;
    --color-accent-hover: #333333;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --max-width: 1280px;
    --header-height: 64px;
    --radius: 4px;
    --transition: all 0.25s ease;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    font-size: 16px;
}

a { color: var(--color-text); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-text-light); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 40px; }

/* === Header - 极简固定导航 === */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

.site-logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.5px;
}
.site-logo:hover { color: var(--color-black); opacity: 0.8; }
.site-logo img { height: 32px; width: auto; }

/* 极简导航 */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.main-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.3px;
    text-transform: uppercase;
    padding: 8px 0;
    position: relative;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-black);
    transition: width 0.3s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }
.main-nav a:hover,
.main-nav a.active { color: var(--color-black); }

/* 头部操作区 */
.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.search-toggle,
.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--color-text);
    cursor: pointer;
    padding: 8px;
    transition: var(--transition);
    line-height: 1;
}
.search-toggle:hover,
.mobile-menu-toggle:hover { color: var(--color-black); }
.mobile-menu-toggle { display: none; }

/* 搜索下拉 */
.search-bar {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    animation: fadeDown 0.2s ease;
}
@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.search-bar form {
    display: flex;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
}
.search-input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid var(--color-border);
    font-size: 16px;
    outline: none;
    background: var(--color-bg-light);
    transition: var(--transition);
    font-family: var(--font-sans);
}
.search-input:focus { border-color: var(--color-black); background: var(--color-white); }
.search-submit {
    padding: 14px 32px;
    background: var(--color-black);
    color: #fff;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.search-submit:hover { background: #333; }

/* === Main Content Offset === */
.site-main { padding-top: var(--header-height); }

/* ========================================
   Hero Slider - 全屏轮播
   ======================================== */
.hero-slider {
    position: relative;
    background: var(--color-bg-dark);
}

.slider-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 0;
    padding-bottom: 42%;
    min-height: 420px;
    max-height: 600px;
}

.slider-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slider-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
}
.slider-slide a {
    display: block;
    width: 100%;
    height: 100%;
}
.slider-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 轮播文字覆盖 - 极简风格 */
.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 80px 60px 40px;
    background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
    color: #fff;
    pointer-events: none;
}
.slide-caption h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    line-height: 1.2;
    max-width: 700px;
}
.slide-caption p {
    font-size: 16px;
    opacity: 0.85;
    font-weight: 400;
    max-width: 600px;
}

/* 轮播导航按钮 - 极简圆形 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.92);
    color: var(--color-black);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0;
}
.slider-container:hover .slider-btn { opacity: 1; }
.slider-btn:hover { background: #fff; transform: translateY(-50%) scale(1.05); }
.slider-prev { left: 24px; }
.slider-next { right: 24px; }

/* 轮播页码指示器 - _1/2_ 风格 */
.slider-counter {
    position: absolute;
    bottom: 28px;
    right: 40px;
    z-index: 10;
    font-size: 14px;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    letter-spacing: 2px;
    background: rgba(0,0,0,0.3);
    padding: 6px 14px;
    border-radius: 20px;
    font-variant-numeric: tabular-nums;
}

.slider-dots {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}
.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}
.slider-dot:hover { background: rgba(255,255,255,0.7); }
.slider-dot.active {
    background: #fff;
    transform: scale(1.3);
    box-shadow: 0 0 8px rgba(255,255,255,0.3);
}

/* ========================================
   Section Common
   ======================================== */
.section-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--color-black);
    letter-spacing: -0.3px;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--color-black);
}

/* ========================================
   Featured Section - 推荐文章
   ======================================== */
.featured-section {
    padding: 80px 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.featured-card {
    transition: var(--transition);
}
.featured-card:hover { transform: translateY(-4px); }

.featured-image {
    display: block;
    overflow: hidden;
    margin-bottom: 16px;
}
.featured-image img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.featured-card:hover .featured-image img { transform: scale(1.03); }

.featured-placeholder {
    aspect-ratio: 16 / 10;
    background: var(--color-bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--color-text-muted);
}

.featured-content { padding: 0; }
.featured-content .category-tag { margin-bottom: 8px; }

.featured-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}
.featured-content h3 a { color: var(--color-black); }
.featured-content h3 a:hover { color: var(--color-text-light); }
.featured-content p {
    color: var(--color-text-light);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 分类标签 - 极简线框 */
.category-tag {
    display: inline-block;
    padding: 3px 10px;
    border: 1px solid var(--color-border);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-text-light);
    transition: var(--transition);
}
a.category-tag:hover {
    border-color: var(--color-black);
    color: var(--color-black);
}

/* 文章元信息 */
.article-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--color-text-muted);
    align-items: center;
}
.article-meta i { margin-right: 3px; }

/* READ MORE 链接 */
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-black);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 8px;
    transition: var(--transition);
}
.read-more::after {
    content: '→';
    transition: transform 0.3s ease;
}
.read-more:hover { color: var(--color-text-light); }
.read-more:hover::after { transform: translateX(3px); }

/* ========================================
   Main Content Layout
   ======================================== */
.main-content { padding: 80px 0; }
.content-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 60px;
}

/* === Article List - 新闻列表风格 === */
.article-list { display: flex; flex-direction: column; gap: 32px; }

.article-card {
    border-bottom: 1px solid var(--color-border-light);
    padding-bottom: 32px;
    transition: var(--transition);
}
.article-card:last-child { border-bottom: none; padding-bottom: 0; }

.article-card-inner { display: flex; gap: 24px; }

.article-thumb {
    flex-shrink: 0;
    width: 240px;
    overflow: hidden;
}
.article-thumb img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.article-card:hover .article-thumb img { transform: scale(1.03); }

.article-info { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.article-meta-top {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.article-date {
    font-size: 12px;
    color: var(--color-text-muted);
    letter-spacing: 0.3px;
}

.article-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
    letter-spacing: -0.2px;
}
.article-title a { color: var(--color-black); }
.article-title a:hover { color: var(--color-text-light); }

.article-excerpt {
    color: var(--color-text-light);
    font-size: 14px;
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-footer-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-top: 14px;
    font-size: 13px;
    color: var(--color-text-muted);
}
.article-footer-meta i { margin-right: 3px; }

.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-bg-light);
    color: var(--color-text-light);
    font-size: 11px;
    letter-spacing: 0.3px;
}

/* ========================================
   Sidebar - 极简侧边栏
   ======================================== */
.content-sidebar { position: sticky; top: calc(var(--header-height) + 20px); }

.sidebar-widget {
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border-light);
}
.sidebar-widget:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.widget-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--color-black);
}

/* 热门列表 */
.popular-list { list-style: none; }

.popular-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border-light);
}
.popular-item:last-child { border-bottom: none; }

.popular-rank {
    width: 22px;
    height: 22px;
    background: var(--color-bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--color-text-muted);
    flex-shrink: 0;
    margin-top: 2px;
}
.popular-item:first-child .popular-rank { background: var(--color-black); color: #fff; }
.popular-item:nth-child(2) .popular-rank { background: #555; color: #fff; }
.popular-item:nth-child(3) .popular-rank { background: #888; color: #fff; }

.popular-info a {
    display: block;
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 2px;
    font-weight: 500;
}
.popular-info a:hover { color: var(--color-text-light); }
.popular-views { font-size: 12px; color: var(--color-text-muted); }

/* 分类列表 */
.category-list { list-style: none; }
.category-list li { padding: 8px 0; border-bottom: 1px solid var(--color-border-light); }
.category-list li:last-child { border-bottom: none; }
.category-list a {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--color-text);
    transition: var(--transition);
}
.category-list a:hover,
.category-list a.active { color: var(--color-black); padding-left: 4px; }
.category-list .count { color: var(--color-text-muted); font-size: 13px; }

/* 侧边栏社交 */
.sidebar-social { display: flex; flex-direction: column; gap: 6px; }
.social-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    font-size: 13px;
    color: var(--color-text);
    transition: var(--transition);
    letter-spacing: 0.3px;
}
.social-btn:hover {
    background: var(--color-black);
    color: #fff;
    border-color: var(--color-black);
}
.social-btn i { font-size: 15px; width: 20px; text-align: center; }

/* ========================================
   Article Detail Page
   ======================================== */
.article-detail { padding: 48px 0 80px; }

/* 面包屑 */
.breadcrumb { margin-bottom: 28px; }
.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--color-text-muted);
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-black); }
.breadcrumb .separator { margin: 0 8px; color: var(--color-border); }

/* 文章头部 */
.article-header { margin-bottom: 32px; }
.article-header h1 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.25;
    margin-top: 16px;
    color: var(--color-black);
    letter-spacing: -0.5px;
}

/* 文章封面 */
.article-cover {
    margin-bottom: 36px;
    overflow: hidden;
}
.article-cover img { width: 100%; max-height: 480px; object-fit: cover; }

/* 文章正文 */
.article-body {
    font-size: 17px;
    line-height: 1.85;
    color: var(--color-text);
}
.article-body h2 { font-size: 26px; margin: 36px 0 18px; font-weight: 700; color: var(--color-black); }
.article-body h3 { font-size: 21px; margin: 28px 0 14px; font-weight: 700; color: var(--color-black); }
.article-body h4 { font-size: 18px; margin: 22px 0 12px; font-weight: 600; }
.article-body p { margin-bottom: 18px; }
.article-body img { margin: 20px 0; }
.article-body ul, .article-body ol { margin: 16px 0; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
    border-left: 3px solid var(--color-black);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--color-bg-light);
    color: var(--color-text-light);
    font-style: italic;
}
.article-body pre {
    background: #1a1a1a;
    color: #e5e5e5;
    padding: 24px;
    overflow-x: auto;
    margin: 20px 0;
    font-size: 14px;
    line-height: 1.6;
}
.article-body code {
    background: var(--color-bg-light);
    padding: 2px 6px;
    font-size: 0.9em;
    border: 1px solid var(--color-border-light);
}
.article-body pre code { background: none; padding: 0; border: none; }

/* 标签 */
.article-tags-section {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}
.tags-label { font-weight: 600; font-size: 13px; color: var(--color-text); }

/* 上下篇导航 */
.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid var(--color-border-light);
    gap: 24px;
}
.nav-prev, .nav-next { flex: 1; }
.nav-label {
    display: block;
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.nav-next { text-align: right; }

/* 相关文章 */
.related-articles {
    margin-top: 56px;
    padding-top: 36px;
    border-top: 1px solid var(--color-border-light);
}
.related-articles h3 { font-size: 20px; margin-bottom: 24px; font-weight: 700; color: var(--color-black); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card { transition: var(--transition); }
.related-card:hover { transform: translateY(-2px); }
.related-image { display: block; overflow: hidden; margin-bottom: 12px; }
.related-image img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .related-image img { transform: scale(1.03); }
.related-info { }
.related-info a {
    color: var(--color-black);
    font-size: 14px;
    font-weight: 600;
    display: block;
    margin-bottom: 6px;
    line-height: 1.4;
}
.related-info a:hover { color: var(--color-text-light); }
.related-info span { font-size: 12px; color: var(--color-text-muted); }

/* ========================================
   Category Page
   ======================================== */
.category-page { padding: 48px 0 80px; }
.category-header { margin-bottom: 36px; }
.category-header h1 { font-size: 32px; font-weight: 700; margin-bottom: 8px; color: var(--color-black); letter-spacing: -0.5px; }
.category-desc { color: var(--color-text-light); font-size: 16px; max-width: 600px; line-height: 1.7; }

/* ========================================
   Search Page
   ======================================== */
.search-page { padding: 48px 0 80px; }
.search-header { margin-bottom: 36px; }
.search-header h1 { font-size: 28px; margin-bottom: 8px; font-weight: 700; color: var(--color-black); }
.search-header p { color: var(--color-text-light); font-size: 15px; }
.search-header strong { color: var(--color-black); }

/* ========================================
   Pagination
   ======================================== */
.pagination { margin-top: 48px; display: flex; justify-content: center; }
.pagination ul.pagination { display: flex; list-style: none; gap: 6px; }
.pagination li a,
.pagination li span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    font-size: 14px;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.pagination li.active span {
    background: var(--color-black);
    color: #fff;
    border-color: var(--color-black);
}
.pagination li a:hover {
    border-color: var(--color-black);
    color: var(--color-black);
}
.pagination li.disabled span {
    color: var(--color-border);
    cursor: not-allowed;
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-text-muted);
}
.empty-state i { font-size: 40px; margin-bottom: 16px; opacity: 0.25; }
.empty-state p { font-size: 15px; }

/* ========================================
   Footer - 极简页脚
   ======================================== */
.site-footer {
    background: var(--color-bg-light);
    border-top: 1px solid var(--color-border-light);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--color-black);
}
.footer-col p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: var(--color-text-light);
    font-size: 14px;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--color-black); padding-left: 4px; }

/* 页脚社交链接 */
.social-links { display: flex; gap: 10px; flex-wrap: wrap; }
.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 16px;
    transition: var(--transition);
}
.social-links a:hover {
    background: var(--color-black);
    color: #fff;
    border-color: var(--color-black);
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: 13px;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border-light);
}

/* 返回顶部 */
.back-to-top {
    display: block;
    text-align: center;
    padding: 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    transition: var(--transition);
}
.back-to-top:hover { color: var(--color-black); }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .container { padding: 0 24px; }
    .header-inner { padding: 0 24px; }

    .content-layout { grid-template-columns: 1fr; gap: 48px; }
    .content-sidebar { position: static; display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .sidebar-widget { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
    .featured-grid { grid-template-columns: repeat(2, 1fr); }
    .slider-container { padding-bottom: 50%; min-height: 350px; max-height: 480px; }
}

@media (max-width: 768px) {
    .mobile-menu-toggle { display: block; }

    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: 20px 24px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    }
    .main-nav.show { display: block; }
    .main-nav ul { flex-direction: column; gap: 0; }
    .main-nav li { border-bottom: 1px solid var(--color-border-light); }
    .main-nav li:last-child { border-bottom: none; }
    .main-nav a {
        display: block;
        padding: 14px 0;
        font-size: 15px;
        text-transform: none;
    }
    .main-nav a::after { display: none; }

    .featured-grid { grid-template-columns: 1fr; }
    .content-sidebar { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

    .article-card-inner { flex-direction: column; }
    .article-thumb { width: 100%; }

    .related-grid { grid-template-columns: repeat(2, 1fr); }

    .slide-caption { padding: 60px 24px 24px; }
    .slide-caption h2 { font-size: 22px; }
    .slide-caption p { font-size: 14px; }
    .slider-container { padding-bottom: 56%; min-height: 280px; max-height: 400px; }
    .slider-counter { right: 20px; bottom: 16px; font-size: 12px; }
    .slider-dots { bottom: 16px; }

    .article-header h1 { font-size: 26px; }
    .slider-btn { width: 36px; height: 36px; font-size: 14px; }
    .slider-prev { left: 12px; }
    .slider-next { right: 12px }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .article-header h1 { font-size: 22px; }
    .article-body { font-size: 16px; }
    .slide-caption h2 { font-size: 18px; }
    .slide-caption p { font-size: 13px; }
    .slide-caption { padding: 40px 16px 16px; }
    .slider-container { padding-bottom: 66%; min-height: 220px; max-height: 320px; }
}