:root{--green:#2F7D5B;--pink:#D96C8A;--ink:#1F2A26;--bg:#F7F8F5;--soft:#EEF3EF;--text:#28312D;--muted:#6B756F;--accent:#E58A3A;--line:#d8e1db;--white:#fff;--radius:18px;--shadow:0 16px 40px rgba(31,42,38,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}button,input{font:inherit}.shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;left:-999px;top:10px}.skip-link:focus{left:10px;z-index:100;background:#fff;padding:10px 14px;border-radius:8px}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{min-height:74px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:800;color:var(--ink)}.brand img{width:42px;height:42px;object-fit:contain}.site-nav{display:flex;gap:8px;align-items:center;margin-left:auto}.site-nav a{padding:9px 12px;border-radius:999px;color:var(--muted);font-size:.95rem}.site-nav a:hover,.site-nav a.active{background:var(--soft);color:var(--green)}.menu-button{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:10px}.lead{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:52px;padding:64px 0 54px}.lead h1,.page-intro h1,.article-page h1,.not-found h1,.search-page h1{font-size:clamp(2.2rem,4vw,4.5rem);line-height:1.12;letter-spacing:-.035em;color:var(--ink);margin:.3em 0}.lead-text,.page-intro>p:last-child{font-size:1.12rem;color:var(--muted);max-width:760px}.eyebrow{text-transform:none;color:var(--green);font-weight:800;letter-spacing:.04em;margin:0 0 8px}.lead-media{margin:0;position:relative}.lead-media:before{content:"";position:absolute;inset:10% -3% -7% 9%;background:linear-gradient(145deg,rgba(47,125,91,.18),rgba(217,108,138,.12));border-radius:32px;z-index:-1}.lead-media img{border-radius:26px;box-shadow:var(--shadow);aspect-ratio:1.45/1;object-fit:cover}.lead-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border-radius:12px;font-weight:750}.button.primary{background:var(--green);color:#fff}.button.primary:hover{background:#266a4d;color:#fff}.button.ghost{background:#fff;border:1px solid var(--line)}.section-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:42px;padding:28px 0 74px}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:18px}.section-head h2,.topic-rail h2,.split-feature h2,.utility-strip h2,.reading-block h2,.checklist h2{margin:0;color:var(--ink);font-size:clamp(1.5rem,2.2vw,2.3rem);line-height:1.2}.section-head>a,.text-link{color:var(--green);font-weight:750}.story-list{border-top:1px solid var(--line)}.story-row{padding:22px 0;border-bottom:1px solid var(--line)}.story-row h3{font-size:1.22rem;line-height:1.35;margin:8px 0}.story-row p{margin:0 0 9px;color:var(--muted)}.story-meta{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:.86rem}.tag{background:var(--soft);color:var(--green);padding:3px 8px;border-radius:999px;font-weight:700}.topic-rail{align-self:start;position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.topic-rail h2{font-size:1.3rem;margin-bottom:12px}.topic-rail a{display:block;padding:15px 0;border-top:1px solid var(--line)}.topic-rail strong,.topic-rail span{display:block}.topic-rail span{color:var(--muted);font-size:.92rem;margin-top:4px}.soft-section{background:var(--soft);padding:64px 0;margin:18px 0 64px}.split-feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:center}.split-feature figure{margin:0}.split-feature img{border-radius:24px;aspect-ratio:1.45/1;object-fit:cover}.split-feature p:not(.eyebrow){color:var(--muted);font-size:1.05rem}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding-bottom:70px}.utility-strip{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px 34px;margin-bottom:74px}.utility-strip img{border-radius:16px}.page-intro{padding:54px 0 36px}.page-intro h1{font-size:clamp(2rem,3.8vw,3.8rem)}.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-bottom:26px}.category-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;padding-bottom:76px}.side-note{align-self:start;position:sticky;top:98px;background:#fff;padding:18px;border:1px solid var(--line);border-radius:var(--radius)}.side-note img{border-radius:14px;aspect-ratio:1.4/1;object-fit:cover;margin-bottom:20px}.side-note h2{font-size:1.25rem;color:var(--ink)}.side-note ul{padding-left:1.2em;color:var(--muted)}.side-note li+li{margin-top:8px}.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding-bottom:58px}.app-grid figure{margin:0}.app-grid img{border-radius:24px;box-shadow:var(--shadow)}.checklist{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px}.checklist li+li{margin-top:10px}.reading-block{max-width:860px;padding:6px 0 78px}.reading-block p{color:var(--muted)}.article-page{max-width:860px;padding:50px 0 72px}.article-page header{padding-bottom:26px;border-bottom:1px solid var(--line)}.article-page h1{font-size:clamp(2.1rem,4vw,3.7rem)}.article-summary{font-size:1.17rem;color:var(--muted)}.article-page time{color:var(--muted)}.article-body{font-size:1.05rem}.article-body h2{margin-top:2.1em;color:var(--ink);font-size:1.55rem}.article-body p{margin:1.25em 0}.article-body ul{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 22px 22px 44px}.article-body li+li{margin-top:8px}.search-page{padding:54px 0 80px}.search-form{max-width:760px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;margin:28px 0 40px}.search-form label{display:block;font-weight:750;margin-bottom:10px}.search-form div{display:flex;gap:10px}.search-form input{flex:1;min-width:0;border:1px solid #cbd7cf;border-radius:10px;padding:11px 13px;background:#fff}.search-form button{border:0;background:var(--green);color:#fff;border-radius:10px;padding:0 20px;font-weight:750}.quick-topics{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.quick-topics h2{width:100%}.quick-topics a{background:var(--soft);color:var(--green);padding:8px 12px;border-radius:999px}.empty-state{background:var(--soft);border-radius:16px;padding:24px}.not-found{padding:90px 0 120px;max-width:780px}.site-footer{background:var(--ink);color:#dce4df;padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px}.footer-grid strong{font-size:1.2rem;color:#fff}.footer-grid p{color:#aebdb5;max-width:520px}.footer-grid div:not(:first-child){display:grid;gap:9px;align-content:start}.footer-grid a{color:#dce4df}.footer-note{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:20px;color:#96a89e;font-size:.9rem}@media(max-width:900px){.site-nav{position:absolute;left:20px;right:20px;top:68px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);display:none;flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{border-radius:9px}.menu-button{display:block}.lead,.split-feature,.section-grid,.category-layout,.app-grid{grid-template-columns:1fr}.lead{padding-top:42px}.lead-media{max-width:700px}.topic-rail,.side-note{position:static}.two-columns{grid-template-columns:1fr}.utility-strip{grid-template-columns:1fr}.utility-strip img{max-width:360px}.section-grid{gap:28px}}@media(max-width:620px){.shell{width:min(100% - 28px,1180px)}.lead{gap:28px;padding-bottom:36px}.lead h1{font-size:2.45rem}.section-head{align-items:start;flex-direction:column}.two-columns{gap:28px}.soft-section{padding:46px 0}.utility-strip{padding:22px}.footer-grid{grid-template-columns:1fr}.search-form div{flex-direction:column}.search-form button{padding:11px 14px}.article-page{padding-top:34px}.story-row{padding:18px 0}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}