:root{--ink:#17211d;--muted:#5e6862;--line:#dce5dd;--paper:#fbfcf7;--surface:#fff;--green:#2f6b54;--green-2:#eaf6ef;--blue:#2f5f8f;--blue-2:#e8f1f8;--amber:#bd7b2a;--amber-2:#fff4dd;--max:1120px}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}
a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}.topbar{position:sticky;top:0;z-index:10;background:rgba(251,252,247,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav{width:min(var(--max),calc(100% - 32px));min-height:66px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:850}.mark{width:32px;height:32px;border-radius:7px;background:linear-gradient(135deg,var(--green),var(--blue))}
.navlinks{display:flex;gap:14px;flex-wrap:wrap;font-weight:750;font-size:14px}.hero,.pagehead{padding:72px 0 42px;border-bottom:1px solid var(--line);background:#eef7f0}.wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.kicker{margin:0 0 10px;color:var(--green);font-size:13px;font-weight:850;letter-spacing:.08em;text-transform:uppercase}h1{max-width:940px;margin:0 0 18px;font-size:clamp(38px,6vw,68px);line-height:1;letter-spacing:0}h2{margin:42px 0 12px;font-size:clamp(26px,4vw,40px);line-height:1.08}h3{margin:28px 0 10px;font-size:23px;line-height:1.15}p{margin:0 0 18px}.lead{max-width:780px;color:#33433b;font-size:20px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{display:grid;gap:12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:22px;color:var(--ink)}.card p{color:var(--muted);margin:0}.card h2{font-size:24px;margin:0;line-height:1.12}
.blog-tools{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:22px}.blog-count{color:var(--muted);font-size:14px}.blog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.blog-card{display:flex;min-height:250px;flex-direction:column;gap:13px;border:1px solid var(--line);border-top:5px solid var(--green);border-radius:8px;background:var(--surface);padding:22px;color:var(--ink);box-shadow:0 12px 32px rgba(23,33,29,.06)}.blog-card:nth-child(3n+2){border-top-color:var(--blue)}.blog-card:nth-child(3n){border-top-color:var(--amber)}.blog-card h2{margin:0;font-size:22px;line-height:1.14}.blog-card p{margin:0;color:var(--muted)}.blog-card .tag{margin-bottom:2px}.blog-card .read-more{margin-top:auto;font-weight:850;color:var(--green)}
.tag{display:inline-flex;width:max-content;align-items:center;min-height:28px;padding:5px 9px;border-radius:5px;background:#dff1e5;color:#234b3d;font-size:12px;font-weight:800}.meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.content{display:grid;grid-template-columns:minmax(0,760px) minmax(230px,280px);gap:48px;align-items:start;padding:48px 0}.article{font-size:18px;min-width:0}.article h2{scroll-margin-top:92px}.article ul,.article ol{padding-left:24px}.article li{margin:9px 0}.article table{display:block;max-width:100%;overflow-x:auto}.callout{border-left:4px solid var(--green);background:#fff;padding:18px;margin:26px 0}.note{border:1px solid #ecd5bd;background:#fff8ed;border-radius:8px;padding:18px;color:#563b18}.toc,.sidebox{border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px;position:sticky;top:88px}.toc strong{display:block;margin-bottom:10px}.toc a,.sidebox a{display:block;margin:8px 0}.toc hr{border:0;border-top:1px solid var(--line);margin:14px 0}.toc a:focus-visible,.blog-card:focus-visible,.button:focus-visible{outline:3px solid rgba(47,95,143,.35);outline-offset:3px}.source-list{padding-left:20px}.footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted)}.footer .wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 16px;border-radius:7px;background:var(--green);color:#fff;font-weight:850}.button:hover{text-decoration:none;background:#245843}.table{width:100%;border-collapse:collapse;margin:20px 0;background:#fff}.table th,.table td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.table th{background:var(--green-2)}.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:14px}.faq dt{font-weight:850;margin-top:18px}.faq dd{margin:6px 0 0;color:var(--muted)}
@media(max-width:980px){.blog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:860px){.grid,.blog-grid,.content{grid-template-columns:1fr}.toc,.sidebox{position:static}.nav{padding:10px 0}.hero,.pagehead{padding-top:46px}.content{gap:26px}.article{font-size:17px}.blog-card{min-height:0}}
@media(max-width:520px){.wrap,.nav{width:min(var(--max),calc(100% - 24px))}h1{font-size:36px}.lead{font-size:18px}.blog-card,.card,.toc,.callout,.note{padding:16px}.meta{font-size:13px}.tag{max-width:100%;white-space:normal}}