*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--c-primary:#1a5c2a;--c-primary-dark:#0d3d1a;--c-accent:#e8a020;--c-bg:#f8f9fa;--c-surface:#fff;--c-text:#1a1a2e;--c-muted:#6c757d;--c-border:#dee2e6;--radius:8px;--shadow:0 2px 12px rgba(0,0,0,.08);--max-w:1280px}html{scroll-behavior:smooth;font-size:16px}body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.7}a{color:var(--c-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block}.container{max-width:var(--max-w);margin:0 auto;padding:0 1rem}/* Header */.site-header{background:var(--c-surface);border-bottom:2px solid var(--c-primary);position:sticky;top:0;z-index:100}.header-inner{display:flex;align-items:center;gap:1.5rem;padding:.75rem 1rem;max-width:var(--max-w);margin:0 auto}.logo img{height:36px;width:auto}.main-nav{display:flex;gap:1.25rem;flex-wrap:wrap;margin-left:auto}.main-nav a{color:var(--c-text);font-weight:500;padding:.25rem .5rem;border-radius:4px;transition:color .2s,background .2s}.main-nav a:hover{color:var(--c-primary);background:#e8f5e9;text-decoration:none}.main-nav a[aria-current=page]{color:var(--c-primary);font-weight:700}/* Mobile menu */.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:.25rem}.mobile-nav{display:none;flex-direction:column;gap:.5rem;padding:.75rem 1rem;background:var(--c-surface);border-top:1px solid var(--c-border)}@media(max-width:768px){.main-nav{display:none}.menu-toggle{display:block}.site-header.menu-open .mobile-nav{display:flex}}/* Footer */.site-footer{background:var(--c-primary-dark);color:#c8e6c9;padding:2rem 0;text-align:center;font-size:.9rem}.site-footer a{color:#a5d6a7}.site-footer a:hover{color:#fff}/* Hero */.hero{position:relative;overflow:hidden;min-height:480px;display:flex;align-items:center}.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,61,26,.85) 0%,rgba(26,92,42,.7) 100%);z-index:1}.hero-content{position:relative;z-index:2;color:#fff;padding:3rem 1rem;max-width:700px}.hero-content h1{font-size:2.5rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.hero-content p{font-size:1.2rem;opacity:.9;margin-bottom:1.5rem}.btn-primary{display:inline-block;background:var(--c-accent);color:#fff;font-weight:700;padding:.75rem 2rem;border-radius:var(--radius);transition:transform .15s,box-shadow .15s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,160,32,.4);text-decoration:none}/* Section */.section{padding:3rem 0}.section-title{font-size:1.5rem;font-weight:700;color:var(--c-primary);margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:3px solid var(--c-accent);display:inline-block}.section-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}/* Card */.card{background:var(--c-surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.12)}.card img{width:100%;height:180px;object-fit:cover}.card-body{padding:1rem;flex:1;display:flex;flex-direction:column}.card-meta{font-size:.8rem;color:var(--c-muted);margin-bottom:.5rem}.card-title{font-size:1.1rem;font-weight:700;margin-bottom:.5rem;color:var(--c-text)}.card-title a{color:inherit}.card-title a:hover{color:var(--c-primary);text-decoration:none}.card-excerpt{font-size:.9rem;color:var(--c-muted);flex:1}/* Article page */.article-layout{display:grid;grid-template-columns:1fr 280px;gap:2rem;max-width:var(--max-w);margin:0 auto;padding:2rem 1rem}@media(max-width:900px){.article-layout{grid-template-columns:1fr}}.article-main{background:var(--c-surface);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow)}.article-header{margin-bottom:1.5rem}.article-header h1{font-size:1.8rem;font-weight:800;line-height:1.3;margin-bottom:.75rem}.article-breadcrumb{font-size:.85rem;color:var(--c-muted);margin-bottom:.75rem}.article-breadcrumb a{color:var(--c-primary)}.article-meta{font-size:.85rem;color:var(--c-muted);margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:1px solid var(--c-border)}.article-body{font-size:1rem;line-height:1.8}.article-body h2{font-size:1.3rem;font-weight:700;color:var(--c-primary);margin:1.5rem 0 .75rem;padding-top:.5rem}.article-body h3{font-size:1.1rem;font-weight:600;margin:1.25rem 0 .5rem}.article-body p{margin-bottom:1rem}.article-body ul,.article-body ol{margin:.75rem 0 1rem 1.5rem}.article-body li{margin-bottom:.35rem}.article-body img{margin:1rem 0;border-radius:var(--radius);box-shadow:var(--shadow)}.article-body strong{color:var(--c-primary-dark)}.article-footer{margin-top:2rem;padding-top:1rem;border-top:2px solid var(--c-border)}.back-link{color:var(--c-primary);font-weight:600}/* Sidebar */.article-sidebar aside{background:var(--c-surface);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);position:sticky;top:90px}.sidebar-title{font-size:1rem;font-weight:700;color:var(--c-primary);margin-bottom:1rem;padding-bottom:.5rem;border-bottom:2px solid var(--c-accent)}.sidebar-list{list-style:none}.sidebar-list li{margin-bottom:.75rem;padding-bottom:.75rem;border-bottom:1px solid var(--c-border)}.sidebar-list li:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.sidebar-list a{color:var(--c-text);font-size:.95rem}.sidebar-list a:hover{color:var(--c-primary)}/* Category page */.category-header{padding:2rem 0 1rem;border-bottom:3px solid var(--c-accent);margin-bottom:2rem}.category-header h1{font-size:1.8rem;font-weight:800;color:var(--c-primary)}.category-header p{color:var(--c-muted);margin-top:.5rem}/* Homepage sections */.home-section{padding:2.5rem 0}.home-section:nth-child(even){background:var(--c-surface)}/* Stats bar */.stats-bar{background:var(--c-primary);color:#fff;padding:1.5rem 0}.stats-grid{display:flex;justify-content:space-around;flex-wrap:wrap;gap:1.5rem;text-align:center}.stat-item h3{font-size:2rem;font-weight:800;color:var(--c-accent)}.stat-item p{font-size:.9rem;opacity:.85}/* Feature row */.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center}@media(max-width:768px){.feature-row{grid-template-columns:1fr}}.feature-row img{border-radius:var(--radius);box-shadow:var(--shadow)}.feature-content h3{font-size:1.3rem;font-weight:700;color:var(--c-primary);margin-bottom:.75rem}.feature-content p{color:var(--c-muted);margin-bottom:1rem}/* FAQ */.faq-list{max-width:700px;margin:0 auto}.faq-item{margin-bottom:1rem}.faq-item summary{font-weight:600;cursor:pointer;padding:.75rem 1rem;background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--shadow);list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--c-accent)}.faq-item details[open] summary::after{content:"-"}/* Mobile responsive */@media(max-width:768px){.hero-content h1{font-size:1.8rem}.hero{min-height:360px}.section{padding:2rem 0}.article-layout{padding:1rem}.article-main{padding:1.25rem}.article-header h1{font-size:1.4rem}}