:root{--color-primary: #0a7ea4;--color-primary-hover: #085e7a;--color-accent: #6db6cd;--color-bg: #f5f8fa;--color-surface: #ffffff;--color-text: #2a3b45;--color-text-muted: #546a78;--color-border: #dce4e8;--color-callout-bg: #e6f3f7;--font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--layout-max-width: 1100px}*,*:before,*:after{box-sizing:border-box}html{line-height:1.6;font-family:var(--font-base);color:var(--color-text);background-color:var(--color-bg)}body,h1,h2,h3,p,ul,li,figure{margin:0;padding:0}a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-primary-hover);text-decoration:underline}img,svg{display:block;max-width:100%}h1,h2,h3{font-weight:700;line-height:1.2;color:var(--color-primary-hover);margin-bottom:1rem}h1{font-size:2.25rem}h2{font-size:1.75rem;margin-top:2rem}h3{font-size:1.25rem;margin-top:1.5rem}p{margin-bottom:1.25rem}ul,ol{margin-bottom:1.25rem;padding-left:1.5rem}li{margin-bottom:.5rem}header{background-color:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}nav{max-width:var(--layout-max-width);margin:0 auto;padding:1rem;display:flex;align-items:center;justify-content:space-between}.brand{font-size:1.25rem;font-weight:700;color:var(--color-primary);text-decoration:none;display:flex;align-items:center;gap:.5rem}.brand:hover{text-decoration:none;color:var(--color-primary-hover)}.brand:before{content:"";display:block;width:24px;height:24px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='%230a7ea4' d='M16 2.3c-1.5 3-9 12-9 18a9 9 0 0 0 18 0c0-6-7.5-15-9-18z'/%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat}.nav-links{list-style:none;display:flex;gap:1.5rem}.nav-links a{color:var(--color-text-muted);font-weight:500}.nav-links a:hover{color:var(--color-primary);text-decoration:none}.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--color-primary);cursor:pointer;padding:.25rem}@media(max-width:768px){.menu-toggle{display:block}.nav-links{display:none;flex-direction:column;position:absolute;top:100%;left:0;width:100%;background-color:var(--color-surface);border-bottom:1px solid var(--color-border);padding:1rem;box-shadow:0 4px 6px -1px #0000001a}.nav-links.active{display:flex}}main{max-width:var(--layout-max-width);margin:0 auto;padding:2rem 1rem;min-height:calc(100vh - 200px)}.page-header{text-align:center;margin-bottom:3rem;padding:2rem 0}.page-header h1{margin-bottom:.5rem}.page-header .subtitle{color:var(--color-text-muted);font-size:1.125rem;max-width:600px;margin:0 auto}.hero{background-color:var(--color-callout-bg);border-radius:12px;padding:3rem 2rem;text-align:center;margin-bottom:3rem}.hero h1{font-size:2.5rem;color:var(--color-primary-dark)}.hero p{font-size:1.25rem;color:var(--color-text-muted);max-width:700px;margin:0 auto 2rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:3rem}.card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;padding:1.5rem;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0a7ea41a}.card h3{margin-top:0;margin-bottom:.75rem;font-size:1.25rem}.card h3 a{color:var(--color-primary-dark);text-decoration:none}.card h3 a:after{content:"";position:absolute;inset:0}.card{position:relative}.card p{color:var(--color-text-muted);margin-bottom:1.5rem;flex-grow:1}.card-link-text{color:var(--color-primary);font-weight:600;font-size:.9rem;display:flex;align-items:center;gap:.25rem}.card-link-text:after{content:"→"}.section-title{margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:2px solid var(--color-border)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:3rem}.stat-card{background-color:var(--color-surface);padding:1.5rem;border-radius:8px;border-top:4px solid var(--color-primary);text-align:center}.stat-number{display:block;font-size:2.5rem;font-weight:700;color:var(--color-primary);margin-bottom:.5rem}.article-container{max-width:800px;margin:0 auto;background-color:var(--color-surface);padding:2.5rem;border-radius:12px;border:1px solid var(--color-border)}@media(max-width:768px){.article-container{padding:1.5rem}}.breadcrumb{margin-bottom:2rem;font-size:.875rem;color:var(--color-text-muted)}.breadcrumb a{color:var(--color-text-muted)}.breadcrumb a:hover{color:var(--color-primary)}.breadcrumb-separator{margin:0 .5rem}.article-content h2{margin-top:2.5rem;border-bottom:1px solid var(--color-border);padding-bottom:.5rem}.callout{background-color:var(--color-callout-bg);border-left:4px solid var(--color-primary);padding:1.5rem;margin:2rem 0;border-radius:0 8px 8px 0}.callout-title{font-weight:700;color:var(--color-primary-dark);margin-bottom:.5rem;display:block}.callout p:last-child{margin-bottom:0}.related-articles{margin-top:4rem;padding-top:2rem;border-top:2px solid var(--color-border)}.related-articles .card-grid{margin-bottom:0}.text-page{max-width:800px;margin:0 auto}footer{background-color:var(--color-surface);border-top:1px solid var(--color-border);padding:3rem 1rem 1rem;margin-top:auto}.footer-content{max-width:var(--layout-max-width);margin:0 auto}.footer-disclaimer{background-color:var(--color-bg);border-radius:8px;padding:1.5rem;font-size:.875rem;color:var(--color-text-muted);margin-bottom:2rem;border:1px solid var(--color-border)}.footer-links{display:flex;justify-content:center;gap:2rem;margin-bottom:2rem;flex-wrap:wrap}.footer-links a{color:var(--color-text-muted);font-size:.875rem}.footer-links a:hover{color:var(--color-primary)}.footer-copy{text-align:center;font-size:.875rem;color:var(--color-text-muted)}