:root{--primary-color:#d43d3d;--text-color:#222;--text-secondary:#666;--bg-color:#f4f5f6;--card-bg:#fff;--border-color:#e8e8e8}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-color);color:var(--text-color);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:var(--card-bg);border-bottom:1px solid var(--border-color);position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 2px 4px rgba(0,0,0,.05)}.header-content{justify-content:space-between;padding:16px 0}.header-content,.logo{display:flex;align-items:center}.logo{font-size:28px;font-weight:700;color:var(--primary-color);text-decoration:none;gap:8px}.logo-icon{font-size:32px}.nav{display:flex;gap:32px;margin-top:16px}.nav-link{text-decoration:none;color:var(--text-secondary);font-size:16px;padding:8px 0;border-bottom:2px solid transparent;transition:all .3s}.nav-link.active,.nav-link:hover{color:var(--primary-color);border-bottom-color:var(--primary-color)}.main{padding:24px 0;min-height:calc(100vh - 120px)}.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:20px;gap:20px;margin-top:24px}.article-card{background:var(--card-bg);border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}.article-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px rgba(0,0,0,.12)}.article-card-wrapper{position:relative}.card-share-wrapper{position:absolute;bottom:8px;right:8px;z-index:10}@media (max-width:768px){.card-share-wrapper{bottom:4px;right:4px}}.article-image{width:100%;height:180px;object-fit:cover;background:linear-gradient(135deg,#667eea,#764ba2)}.article-content{padding:16px}.article-category{display:inline-block;padding:4px 12px;background:var(--primary-color);color:#fff;font-size:12px;border-radius:12px;margin-bottom:8px}.article-title{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.4;-webkit-line-clamp:2}.article-excerpt,.article-title{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}.article-excerpt{font-size:14px;color:var(--text-secondary);line-height:1.6;-webkit-line-clamp:3;margin-bottom:12px}.article-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--text-secondary)}.article-source{color:var(--primary-color);font-weight:500}.article-detail{background:var(--card-bg);border-radius:8px;padding:32px;margin-top:24px}.article-detail-header{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border-color)}.article-detail-title{font-size:32px;font-weight:700;margin-bottom:16px;line-height:1.4}.article-detail-meta{display:flex;gap:24px;font-size:14px;color:var(--text-secondary)}.article-detail-content{font-size:16px;line-height:1.8}.article-detail-content h2{font-size:24px;margin:24px 0 16px;font-weight:600}.article-detail-content p{margin-bottom:16px}.article-detail-content img{max-width:100%;height:auto;border-radius:8px;margin:16px 0}.source-badge{background:#f0f0f0;padding:12px 16px;border-radius:8px;margin-top:24px;font-size:14px;color:var(--text-secondary)}.source-badge strong{color:var(--primary-color)}.footer{background:var(--card-bg);border-top:1px solid var(--border-color);padding:24px 0;margin-top:48px;text-align:center;color:var(--text-secondary);font-size:14px}.footer-links{display:flex;justify-content:center;gap:24px;margin-bottom:12px}.footer-links a{color:var(--text-secondary);text-decoration:none}.footer-links a:hover{color:var(--primary-color)}.pagination{display:flex;justify-content:center;gap:8px;margin-top:32px}.pagination-btn{padding:8px 16px;border:1px solid var(--border-color);background:var(--card-bg);cursor:pointer;border-radius:4px;transition:all .3s}.pagination-btn.active,.pagination-btn:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}@media (max-width:768px){.header-content{flex-direction:column;gap:16px}.nav{gap:16px}.article-grid{grid-template-columns:1fr}.article-detail{padding:20px}.article-detail-title{font-size:24px}}