:root{--color-primary:#187534;--color-secondary:#090;--color-accent:#5ba881;--color-bg:#f8fdf5;--color-bg-alt:#eef7e8;--color-text:#1a1a1a;--color-text-light:#555;--color-white:#fff;--color-border:#d4e8c8;--color-cream:#ffc;--max-width:820px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--color-text);background:var(--color-bg);line-height:1.7;font-size:17px}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline;color:var(--color-secondary)}img{max-width:100%;height:auto}.site-header{background:var(--color-primary);color:var(--color-white);padding:0;position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.15)}.header-inner{max-width:var(--max-width);margin:0 auto;padding:12px 20px;justify-content:space-between}.header-inner,.header-logo{display:flex;align-items:center}.header-logo{gap:10px;color:var(--color-white);text-decoration:none;font-size:1.25rem;font-weight:700}.header-logo:hover{color:var(--color-cream);text-decoration:none}.header-logo svg{flex-shrink:0}.nav-toggle{display:none;background:none;border:2px solid hsla(0,0%,100%,.5);color:var(--color-white);font-size:1.5rem;cursor:pointer;padding:4px 10px;border-radius:4px;line-height:1}.header-nav{display:flex;gap:4px}.header-nav a{color:hsla(0,0%,100%,.9);padding:6px 12px;border-radius:4px;font-size:.9rem;transition:background .2s}.header-nav a:hover{background:hsla(0,0%,100%,.15);color:var(--color-white);text-decoration:none}.main-content{max-width:var(--max-width);margin:0 auto;padding:40px 20px 60px;min-height:60vh}.page-title{margin-bottom:24px}.article-content h1,.page-title{font-size:2rem;color:var(--color-primary);line-height:1.3}.article-content h1{margin:32px 0 16px}.article-content h2{font-size:1.5rem;color:var(--color-primary);margin:32px 0 12px;padding-bottom:6px;border-bottom:2px solid var(--color-border)}.article-content h3{font-size:1.2rem;color:#2a5e3a;margin:24px 0 10px}.article-content p{margin-bottom:16px}.article-content ol,.article-content ul{margin:0 0 16px 24px}.article-content li{margin-bottom:6px}.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.95rem}.article-content td,.article-content th{border:1px solid var(--color-border);padding:10px 12px;text-align:left}.article-content th{background:var(--color-primary);color:var(--color-white);font-weight:600}.article-content tr:nth-child(2n){background:var(--color-bg-alt)}.article-content strong{color:#1a3d2a}.article-content blockquote{border-left:4px solid var(--color-accent);padding:12px 20px;margin:20px 0;background:var(--color-bg-alt);border-radius:0 6px 6px 0;font-style:italic;color:var(--color-text-light)}.toc-container{background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:8px;padding:20px 24px;margin-bottom:32px}.toc-title{font-size:1rem;font-weight:700;color:var(--color-primary);margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.toc-list{list-style:none;margin:0;padding:0}.toc-list li{margin-bottom:6px}.toc-list a{color:var(--color-text);font-size:.95rem;display:block;border-left:2px solid transparent;padding:3px 0 3px 10px;transition:all .2s}.toc-list a:hover{color:var(--color-primary);border-left-color:var(--color-primary);text-decoration:none}.toc-list .toc-h3{padding-left:24px;font-size:.9rem}.faq-section{margin-top:48px;padding-top:32px;border-top:2px solid var(--color-border)}.faq-section h2{font-size:1.5rem;color:var(--color-primary);margin-bottom:24px}.faq-item{margin-bottom:20px;border:1px solid var(--color-border);border-radius:8px;overflow:hidden}.faq-question{background:var(--color-bg-alt);padding:16px 20px;font-weight:600;color:var(--color-primary);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}.faq-question:hover{background:#e3f0d9}.faq-question:after{content:"+";font-size:1.3rem;flex-shrink:0;transition:transform .3s}.faq-item.open .faq-question:after{content:"\2212"}.faq-answer{display:none;padding:16px 20px;line-height:1.7}.faq-answer p{margin-bottom:12px}.faq-answer p:last-child{margin-bottom:0}.faq-item.open .faq-answer{display:block}.site-footer{background:var(--color-primary);color:hsla(0,0%,100%,.85);padding:40px 20px 24px}.footer-inner{max-width:var(--max-width);margin:0 auto}.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:32px;gap:32px;margin-bottom:32px}.footer-col h3{color:var(--color-white);font-size:1rem;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:6px}.footer-col a{color:hsla(0,0%,100%,.75);font-size:.9rem;transition:color .2s}.footer-col a:hover{color:var(--color-white);text-decoration:none}.footer-bottom{border-top:1px solid hsla(0,0%,100%,.2);padding-top:20px;text-align:center;font-size:.85rem;color:hsla(0,0%,100%,.6)}.key-values-list{list-style:none;margin:0 0 24px;padding:0;display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px}.key-values-list li{background:var(--color-bg-alt);padding:10px 14px;border-radius:6px;border-left:3px solid var(--color-accent);font-size:.95rem}.hero{background:linear-gradient(135deg,var(--color-primary) 0,#1e8c40 100%);color:var(--color-white);padding:48px 20px;text-align:center;margin:-40px -20px 40px}.hero h1{font-size:2.2rem;margin-bottom:16px}.hero p{font-size:1.1rem;max-width:600px;margin:0 auto;opacity:.9}.chapter-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:20px;gap:20px;margin:24px 0}.chapter-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:8px;padding:20px;transition:box-shadow .2s,transform .2s}.chapter-card:hover{box-shadow:0 4px 16px rgba(0,0,0,.1);transform:translateY(-2px)}.chapter-card h3{color:var(--color-primary);font-size:1.1rem;margin-bottom:8px}.chapter-card p{font-size:.9rem;color:var(--color-text-light);margin-bottom:12px}.chapter-card a{font-size:.9rem;font-weight:600}.error-page{text-align:center;padding:80px 20px}.error-page h1{font-size:5rem;color:var(--color-accent);margin-bottom:8px}.error-page h2{font-size:1.5rem;color:var(--color-primary);margin-bottom:16px}.error-page p{color:var(--color-text-light);margin-bottom:24px}.error-page a{display:inline-block;background:var(--color-primary);color:var(--color-white);padding:12px 28px;border-radius:6px;font-weight:600;transition:background .2s}.error-page a:hover{background:var(--color-secondary);text-decoration:none;color:var(--color-white)}@media (max-width:768px){body{font-size:16px}.nav-toggle{display:block}.header-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--color-primary);flex-direction:column;padding:8px 16px 16px;border-top:1px solid hsla(0,0%,100%,.15)}.header-nav.open{display:flex}.header-nav a{padding:10px 12px}.footer-grid{grid-template-columns:1fr;gap:24px}.hero h1{font-size:1.6rem}.article-content h1,.page-title{font-size:1.5rem}.article-content h2{font-size:1.25rem}.chapter-grid,.key-values-list{grid-template-columns:1fr}}