:root{--teal:#0f766e;--teal-d:#115e59;--mint:#d9f5ee;--coral:#f97360;--coral-d:#e85d4a;--sun:#fcd34d;--bg:#f7fbfa;--card:#fff;--text:#1e293b;--muted:#64748b;--line:#e2ece9;--radius:16px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:17px}
img{max-width:100%}
a{color:var(--teal)}
a:hover{color:var(--coral-d)}
.container{width:min(1100px,92%);margin:0 auto}
.narrow{width:min(760px,92%);margin:0 auto}
/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 0;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.25rem;color:var(--teal-d);text-decoration:none;letter-spacing:-.01em}
.brand .dot{color:var(--coral)}
.main-nav{display:flex;gap:1.1rem;flex-wrap:wrap}
.main-nav a{text-decoration:none;color:var(--text);font-size:.95rem;font-weight:500}
.main-nav a:hover{color:var(--coral-d)}
/* hero */
.hero{background:linear-gradient(135deg,var(--mint) 0%,#fff7ed 100%);padding:4.5rem 0 4rem;text-align:center}
.hero .eyebrow{display:inline-block;background:#fff;color:var(--teal-d);font-weight:600;font-size:.85rem;padding:.35rem .9rem;border-radius:999px;margin-bottom:1rem;box-shadow:0 2px 8px rgba(15,118,110,.08)}
.hero h1{font-size:clamp(2rem,5.5vw,3.3rem);line-height:1.15;color:var(--teal-d);letter-spacing:-.02em;margin-bottom:1rem}
.hero h1 span{color:var(--coral)}
.hero p{font-size:clamp(1.05rem,2.3vw,1.25rem);color:var(--muted);max-width:640px;margin:0 auto 1.8rem}
.btn{display:inline-block;background:var(--coral);color:#fff;text-decoration:none;font-weight:700;padding:.8rem 1.6rem;border-radius:999px;transition:.2s}
.btn:hover{background:var(--coral-d);color:#fff;transform:translateY(-2px)}
/* sections */
.section{padding:3.5rem 0}
.section h2.section-title{font-size:clamp(1.5rem,3.5vw,2rem);color:var(--teal-d);margin-bottom:1.5rem;letter-spacing:-.01em}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;text-decoration:none;color:var(--text);transition:.2s}
.cat-card:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:0 8px 24px rgba(15,118,110,.1);color:var(--text)}
.cat-card .ico{font-size:1.6rem}
.cat-card h3{font-size:1.1rem;color:var(--teal-d);margin:.4rem 0 .3rem}
.cat-card p{font-size:.92rem;color:var(--muted);line-height:1.5}
.post-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.4rem}
.post-card{background:var(--card);border-radius:var(--radius);padding:1.6rem;box-shadow:0 4px 18px rgba(30,41,59,.06);border-top:4px solid var(--coral);display:flex;flex-direction:column}
.post-card .meta{font-size:.82rem;color:var(--muted);margin-bottom:.4rem}
.post-card .meta a{color:var(--teal);font-weight:600;text-decoration:none}
.post-card h3{font-size:1.2rem;line-height:1.35;margin-bottom:.5rem}
.post-card h3 a{color:var(--text);text-decoration:none}
.post-card h3 a:hover{color:var(--teal)}
.post-card p{color:var(--muted);font-size:.95rem;flex:1}
.post-card .more{margin-top:1rem;font-weight:700;text-decoration:none}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:2rem;text-align:center;color:var(--muted)}
/* article */
.page-head{background:linear-gradient(135deg,var(--mint),#fff7ed);padding:3rem 0 2.5rem}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:.8rem}
.breadcrumb a{text-decoration:none}
.page-head h1{font-size:clamp(1.7rem,4.5vw,2.6rem);line-height:1.2;color:var(--teal-d);letter-spacing:-.015em}
.page-head .lead{margin-top:.8rem;color:var(--muted);font-size:1.08rem}
.page-head .meta{margin-top:1rem;font-size:.88rem;color:var(--muted)}
.prose{padding:2.5rem 0 3rem}
.prose h2{font-size:1.55rem;color:var(--teal-d);margin:2.4rem 0 .8rem;line-height:1.3}
.prose h3{font-size:1.2rem;margin:1.8rem 0 .6rem;line-height:1.35}
.prose p,.prose ul,.prose ol,.prose table,.prose blockquote{margin-bottom:1.1rem}
.prose ul,.prose ol{padding-left:1.4rem}
.prose li{margin-bottom:.35rem}
.prose blockquote{border-left:4px solid var(--sun);background:#fffbeb;padding:1rem 1.2rem;border-radius:0 12px 12px 0}
.prose blockquote p:last-child{margin-bottom:0}
.prose table{width:100%;border-collapse:collapse;font-size:.95rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:.55rem .7rem;text-align:left}
.prose th{background:var(--mint)}
.prose code{background:#eef2f1;padding:.1rem .35rem;border-radius:4px;font-size:.9em}
.prose .toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.4rem}
.aff{display:inline-block;background:#fff1ee;color:var(--coral-d);border:1px dashed var(--coral);font-size:.85em;font-weight:700;padding:.05rem .5rem;border-radius:6px}
.todo{background:#fef3c7;color:#92400e;font-weight:700;padding:.05rem .35rem;border-radius:4px}
.sources{font-size:.92rem}
/* footer */
.site-footer{background:var(--teal-d);color:#d1fae5;padding:2.5rem 0 2rem;margin-top:2rem;font-size:.92rem}
.footer-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1.5rem}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{color:var(--sun)}
.footer-links{display:flex;gap:1rem;flex-wrap:wrap}
.disclaimer{margin-top:1.5rem;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.15);font-size:.82rem;color:#a7f3d0;line-height:1.6}
@media (max-width:640px){body{font-size:16px}.header-inner{justify-content:center}.main-nav{justify-content:center;gap:.8rem}.hero{padding:3rem 0}}