*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#667eea;--primary-dark:#5568d3;--secondary:#764ba2;--accent:#f093fb;--text:#2d3748;--text-light:#718096;--bg:#f7fafc;--white:#fff;--shadow:0 4px 6px rgba(0,0,0,.07);--shadow-lg:0 10px 30px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:var(--text);background:var(--bg)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{background:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.navbar .container{display:flex;justify-content:space-between;align-items:center;padding:1rem 20px}.nav-brand h1{font-size:1.8rem;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:0}.nav-brand .tagline{font-size:.85rem;color:var(--text-light)}.nav-menu{display:flex;gap:1.5rem}.nav-menu a{color:var(--text);text-decoration:none;padding:.5rem 1rem;border-radius:8px;transition:all .3s;font-weight:500}.nav-menu a:hover,.nav-menu a.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--white)}.hero{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:var(--white);padding:5rem 2rem;position:relative;overflow:hidden}.hero-content{max-width:800px;margin:0 auto;text-align:center;position:relative;z-index:2}.hero-title{font-size:3rem;font-weight:700;margin-bottom:1rem;animation:fadeInUp .8s ease}.hero-subtitle{font-size:1.3rem;opacity:.95;margin-bottom:3rem;animation:fadeInUp .8s ease .2s backwards}.hero-stats{display:flex;justify-content:center;gap:3rem;margin-bottom:3rem;animation:fadeInUp .8s ease .4s backwards}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.stat-label{font-size:.95rem;opacity:.9}.search-box{max-width:600px;margin:0 auto;display:flex;background:var(--white);border-radius:50px;overflow:hidden;box-shadow:var(--shadow-lg);animation:fadeInUp .8s ease .6s backwards}.search-box input{flex:1;padding:1rem 2rem;border:none;font-size:1rem;outline:none;color:var(--text)}.search-box button{background:linear-gradient(135deg,var(--primary),var(--secondary));border:none;padding:1rem 2rem;cursor:pointer;color:var(--white);transition:opacity .3s}.search-box button:hover{opacity:.9}.hero-decoration{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.circle{position:absolute;border-radius:50%;background:rgba(255,255,255,.1)}.circle-1{width:300px;height:300px;top:-150px;right:-100px}.circle-2{width:200px;height:200px;bottom:-50px;left:10%}.circle-3{width:150px;height:150px;top:50%;left:-50px}.categories-section,.latest-posts{padding:5rem 2rem}.section-title{font-size:2.5rem;text-align:center;margin-bottom:1rem;color:var(--text)}.section-subtitle{text-align:center;color:var(--text-light);margin-bottom:3rem;font-size:1.1rem}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:3rem}.category-card{background:var(--white);border-radius:16px;padding:2rem;box-shadow:var(--shadow);transition:all .3s;cursor:pointer;position:relative;overflow:hidden}.category-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),var(--secondary));transform:scaleX(0);transition:transform .3s}.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}.category-card:hover::before{transform:scaleX(1)}.card-icon{width:64px;height:64px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;color:var(--white)}.category-card h3{font-size:1.5rem;margin-bottom:.75rem;color:var(--text)}.card-desc{color:var(--text-light);margin-bottom:1.5rem;line-height:1.6}.card-meta{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.article-count{color:var(--text-light);font-size:.9rem}.hot-badge,.new-badge{background:linear-gradient(135deg,#ff6b6b,#ff8e53);color:var(--white);padding:.25rem .75rem;border-radius:20px;font-size:.75rem;font-weight:600}.new-badge{background:linear-gradient(135deg,#4facfe,#00f2fe)}.card-link{color:var(--primary);text-decoration:none;font-weight:600;display:inline-flex;align-items:center;transition:transform .3s}.card-link:hover{transform:translateX(5px)}.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:2rem}.post-card{background:var(--white);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:all .3s;cursor:pointer}.post-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.post-content{padding:1.5rem}.post-category{display:inline-block;background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--white);padding:.25rem .75rem;border-radius:20px;font-size:.8rem;margin-bottom:.75rem}.post-card h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--text);line-height:1.4}.post-excerpt{color:var(--text-light);font-size:.95rem;line-height:1.6;margin-bottom:1rem}.post-meta{display:flex;justify-content:space-between;align-items:center;color:var(--text-light);font-size:.85rem}.footer{background:var(--text);color:var(--white);padding:3rem 2rem 1rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3,.footer-section h4{margin-bottom:1rem}.footer-section p{color:rgba(255,255,255,.7);line-height:1.8}.footer-section a{display:block;color:rgba(255,255,255,.7);text-decoration:none;margin-bottom:.5rem;transition:color .3s}.footer-section a:hover{color:var(--white)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1.5rem;text-align:center;color:rgba(255,255,255,.7)}.footer-bottom a{color:var(--primary);text-decoration:none}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1.1rem}.hero-stats{flex-direction:column;gap:1.5rem}.nav-menu{flex-wrap:wrap;gap:.5rem}.nav-menu a{font-size:.9rem;padding:.4rem .8rem}.section-title{font-size:2rem}.categories-grid{grid-template-columns:1fr}}

.nav-brand{display:flex;align-items:center;gap:12px}
.logo-img{height:60px;width:auto;object-fit:contain}
.brand-text{display:flex;flex-direction:column}

.pagination{display:flex;justify-content:center;align-items:center;gap:1rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--bg)}
.page-btn{background:linear-gradient(135deg,var(--primary),var(--secondary));color:white;border:none;padding:0.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:opacity 0.3s}
.page-btn:hover:not(:disabled){opacity:0.9}
.page-btn:disabled{opacity:0.5;cursor:not-allowed}
.page-info{color:var(--text-light);font-weight:500}

.footer-logo{height:40px;width:auto;margin-bottom:1rem}

.article-body img{max-width:100%;height:auto;display:block;margin:1.5rem auto;border-radius:8px;box-shadow:var(--shadow)}
.article-content img{max-width:100%;height:auto;display:block;margin:1rem 0;border-radius:8px}

/* 文章详情页优化排版 */
.article-body{font-size:1.05rem;line-height:1.9;color:#2d3748}
.article-body h2{font-size:1.9rem;color:#667eea;margin-top:3rem;margin-bottom:1.5rem;padding-bottom:0.75rem;border-bottom:2px solid #e2e8f0;font-weight:700}
.article-body h3{font-size:1.5rem;color:#4a5568;margin-top:2.5rem;margin-bottom:1.2rem;font-weight:600}
.article-body h4{font-size:1.25rem;color:#4a5568;margin-top:2rem;margin-bottom:1rem;font-weight:600}
.article-body p{margin-bottom:1.8rem;text-indent:2em;text-align:justify}
.article-body p:first-of-type{text-indent:0}
.article-body ul,.article-body ol{margin-bottom:2rem;padding-left:3rem;line-height:2}
.article-body li{margin-bottom:1rem;position:relative}
.article-body li::marker{color:#667eea;font-weight:600}
.article-body ul li::before{content:'';position:absolute;left:-1.5rem;top:0.75rem;width:6px;height:6px;background:#667eea;border-radius:50%}
.article-body blockquote{border-left:4px solid #667eea;background:#f7fafc;padding:1.5rem 1.5rem 1.5rem 2rem;margin:2rem 0;border-radius:0 8px 8px 0;font-style:italic;color:#4a5568}
.article-body strong{color:#2d3748;font-weight:700;background:linear-gradient(180deg,transparent 60%,rgba(102,126,234,0.15) 60%);padding:0 0.2em}
.article-body em{color:#667eea;font-style:italic}
.article-body hr{border:none;height:2px;background:linear-gradient(90deg,transparent,#e2e8f0,transparent);margin:3rem 0}
.article-content h2{font-size:1.6rem;color:#667eea;margin-top:2.5rem;margin-bottom:1.2rem;padding-left:1rem;border-left:4px solid #667eea}
.article-content h3{font-size:1.3rem;color:#4a5568;margin-top:2rem;margin-bottom:1rem}
.article-content p{margin-bottom:1.5rem;line-height:1.9}
.article-content ul,.article-content ol{margin-bottom:1.8rem;padding-left:2.5rem}
.article-content li{margin-bottom:0.8rem;line-height:1.8}

.article-body img,.article-content img{background:#f0f0f0;transition:opacity 0.3s}
.article-body img[src=""],.article-content img[src=""]{min-height:200px}