:root {
  --green:#2F7D5B;
  --green-dark:#1F2A26;
  --green-soft:#EEF3EF;
  --pink:#D96C8A;
  --orange:#E58A3A;
  --bg:#F7F8F5;
  --text:#28312D;
  --muted:#6B756F;
  --line:#DCE3DE;
  --white:#FFFFFF;
  --shadow:0 14px 40px rgba(31,42,38,.08);
  --radius:18px;
  --radius-sm:12px;
  --shell:min(1180px,calc(100% - 36px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7;font-size:16px}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
[hidden]{display:none!important}
.shell{width:var(--shell);margin-inline:auto}
.skip-link{position:fixed;left:12px;top:10px;z-index:9999;background:var(--green-dark);color:#fff;padding:10px 14px;border-radius:8px;transform:translateY(-180%)}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,227,222,.9)}
.header-inner{width:var(--shell);margin:auto;min-height:72px;display:flex;align-items:center;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.02em}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--green);color:white;font-size:18px}
.primary-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.primary-nav a{padding:9px 13px;border-radius:10px;color:var(--muted);font-weight:650}
.primary-nav a:hover,.primary-nav a:focus-visible,.primary-nav a.is-active{background:var(--green-soft);color:var(--green-dark)}
.menu-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;color:var(--green-dark)}
.kicker{margin:0 0 8px;color:var(--green);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.lead-strip{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:52px;align-items:center;padding-block:56px 44px}
.lead-copy h1{margin:0;font-size:clamp(38px,5vw,64px);line-height:1.1;letter-spacing:-.045em;color:var(--green-dark);max-width:820px}
.lead{font-size:19px;color:var(--muted);max-width:720px;margin:24px 0 0}
.lead-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:12px;font-weight:750;border:1px solid transparent;transition:.2s ease}
.button:hover{transform:translateY(-1px)}
.button--primary{background:var(--green);color:#fff;box-shadow:0 8px 18px rgba(47,125,91,.18)}
.button--ghost{background:transparent;border-color:var(--line);color:var(--green-dark)}
.button--soft{background:var(--green-soft);color:var(--green-dark)}
.lead-media{margin:0;background:var(--white);padding:12px;border-radius:22px;box-shadow:var(--shadow)}
.lead-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:15px;background:linear-gradient(135deg,#d8e9df,#f1d8df)}
.lead-media figcaption{padding:12px 6px 2px;color:var(--muted);font-size:14px}
.signal-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.signal-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.signal-grid a{display:flex;flex-direction:column;gap:4px;padding:22px 26px;border-right:1px solid var(--line)}
.signal-grid a:first-child{padding-left:0}.signal-grid a:last-child{border-right:0;padding-right:0}
.signal-grid strong{color:var(--green-dark);font-size:16px}.signal-grid span{color:var(--muted);font-size:14px}
.section-space{padding-block:58px}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}
.section-heading h2{margin:0;color:var(--green-dark);font-size:30px;line-height:1.2;letter-spacing:-.025em}
.section-heading>p{max-width:460px;margin:0;color:var(--muted);font-size:14px}
.section-heading--tight{margin-bottom:18px}
.feed-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.feed-list--two{grid-template-columns:repeat(2,minmax(0,1fr))}
.feed-item{background:var(--white);padding:24px;min-width:0}
.feed-item h3{font-size:21px;line-height:1.42;margin:8px 0 10px;color:var(--green-dark)}
.feed-item h3 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.feed-item p{margin:0;color:var(--muted)}
.feed-item--compact{padding:18px}.feed-item--compact h3{font-size:17px;margin:5px 0 8px}.feed-item--compact p{font-size:14px}
.feed-meta{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted)}
.feed-meta .eyebrow{color:var(--pink);font-weight:800}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}
.tag{padding:4px 8px;border-radius:999px;background:var(--green-soft);font-size:12px;color:#4f6259}
.rail{display:grid;gap:16px;position:sticky;top:94px}
.rail-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.rail-card--accent{border-top:4px solid var(--orange)}
.rail-card h2{margin:0 0 12px;font-size:20px;line-height:1.35;color:var(--green-dark)}
.rail-link{display:block;padding:11px 0;border-top:1px solid var(--line);font-size:14px;color:var(--green-dark)}
.check-list{margin:12px 0 0;padding-left:20px;color:var(--muted)}
.check-list li+li{margin-top:8px}
.tone-section{background:var(--green-dark);color:#fff}
.split-feature{display:grid;grid-template-columns:.85fr 1.15fr;gap:46px;padding-block:56px}
.feature-copy{align-self:center}.feature-copy .kicker{color:#9fd0b6}.feature-copy h2{font-size:34px;line-height:1.25;margin:0 0 16px}.feature-copy p{color:#cdd7d2}.feature-copy .text-link{color:#fff}
.mini-stack{display:grid;gap:1px;background:rgba(255,255,255,.14);border-radius:16px;overflow:hidden}.mini-stack .feed-item{background:#26342f}.mini-stack .feed-item h3{color:#fff}.mini-stack .feed-item p,.mini-stack .feed-meta{color:#b9c7c0}.mini-stack .tag{background:#34473f;color:#dfe8e3}
.text-link{display:inline-block;margin-top:15px;color:var(--green);font-weight:800}
.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.board-card{min-height:240px;padding:26px;border-radius:20px;border:1px solid transparent;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 8px 24px rgba(31,42,38,.05)}
.board-card span{font-size:13px;font-weight:800;margin-bottom:18px}.board-card strong{font-size:22px;line-height:1.35;margin-bottom:10px}.board-card p{margin:0;color:#56645d;font-size:14px}
.board-card--green{background:#e6f1e9;border-color:#d3e5d9}.board-card--pink{background:#f7e9ee;border-color:#efd7df}.board-card--orange{background:#fbefe2;border-color:#f3ddc6}
.community-preview{display:grid;grid-template-columns:.78fr 1.22fr;gap:44px;border-top:1px solid var(--line)}
.community-intro h2{font-size:34px;line-height:1.25;margin:0 0 14px;color:var(--green-dark)}.community-intro>p:not(.kicker){color:var(--muted)}
.community-list{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:16px;overflow:hidden}.community-list .feed-item{border-bottom:1px solid var(--line)}.community-list .feed-item:nth-child(odd){border-right:1px solid var(--line)}
.helper-row{display:flex;align-items:center;justify-content:space-between;gap:28px;border-top:1px solid var(--line)}.helper-row h2{margin:0;font-size:26px}.helper-row p{margin:10px 0 0;color:var(--muted);max-width:760px}
.site-footer{margin-top:36px;background:#17201c;color:#dfe6e2;padding:42px max(18px,calc((100vw - 1180px)/2)) 24px}.footer-grid{display:flex;justify-content:space-between;gap:40px}.footer-grid>div{max-width:520px}.footer-grid p{color:#9ca9a2}.footer-grid nav{display:grid;grid-template-columns:repeat(2,auto);gap:10px 26px;align-content:start}.footer-grid a:hover{text-decoration:underline}.copyright{border-top:1px solid #314039;margin:30px 0 0;padding-top:18px;color:#85938b;font-size:13px}
.inner-main{padding-top:28px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;color:var(--muted);font-size:13px}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#a9b2ad}.breadcrumb a:hover{color:var(--green)}
.page-intro{padding:46px 0 34px}.page-intro h1{font-size:clamp(36px,5vw,56px);line-height:1.12;margin:0;color:var(--green-dark);letter-spacing:-.04em}.page-intro>p,.page-intro div>p:not(.kicker){font-size:18px;color:var(--muted);max-width:780px;margin:18px 0 0}
.page-intro--wide{max-width:920px}.page-intro--split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:end}.page-intro--split>p{margin:0 0 6px}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.evidence-grid>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.evidence-grid span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--green-soft);color:var(--green);font-weight:800}.evidence-grid strong{display:block;margin:14px 0 6px;font-size:20px;color:var(--green-dark)}.evidence-grid p{margin:0;color:var(--muted);font-size:14px}
.note-panel{display:grid;grid-template-columns:.75fr 1.25fr;gap:32px;background:#fff1f4;border:1px solid #f0dce3;border-left:5px solid var(--pink);padding:28px;border-radius:16px}.note-panel h2{margin:0;font-size:24px;line-height:1.35}.note-panel>p{margin:0;color:#63565a}.note-panel--green{background:#edf5f0;border-color:#d8e9df;border-left-color:var(--green)}
.visual-band{background:#edf3ef;border-block:1px solid #dfe8e2}.visual-band-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding-block:40px}.visual-band img{border-radius:18px;aspect-ratio:3/2;object-fit:cover;background:#dbe8df}.visual-band h2{font-size:34px;line-height:1.25;margin:0 0 14px;color:var(--green-dark)}.visual-band p{color:var(--muted)}
.masonry-feed{columns:2;column-gap:18px}.masonry-feed .feed-item{break-inside:avoid;margin-bottom:18px;border:1px solid var(--line);border-radius:16px}
.page-intro--community{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}.page-intro--community img{border-radius:18px;background:#e9f1ec;aspect-ratio:4/3;object-fit:cover}
.question-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.question-card{padding:24px;border-radius:16px;background:#fff;border:1px solid var(--line)}.question-card span{font-size:12px;font-weight:800;color:var(--pink)}.question-card strong{display:block;font-size:21px;line-height:1.4;margin:8px 0 10px}.question-card p{margin:0;color:var(--muted);font-size:14px}
.community-code{background:var(--green-dark);color:#fff;border-radius:20px;padding:34px}.community-code h2{margin:0 0 18px;font-size:28px}.community-code ul{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;margin:0;padding-left:20px;color:#cbd6d1}.community-code strong{color:#fff}
.app-hero{display:grid;grid-template-columns:1.05fr .7fr;gap:54px;align-items:center}.app-hero img{max-height:390px;justify-self:end;border-radius:22px;background:#edf5f0;object-fit:cover}.app-hero strong{color:var(--green-dark)}
.mobile-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-top:24px}.mobile-steps article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}.mobile-steps span{font-size:30px;color:var(--green);font-weight:900}.mobile-steps h2{margin:6px 0 8px;font-size:22px}.mobile-steps p{margin:0;color:var(--muted)}
.article-main{padding-top:28px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:52px;align-items:start;padding-top:30px}.article-header{padding-bottom:28px;border-bottom:1px solid var(--line)}.article-header h1{font-size:clamp(34px,5vw,52px);line-height:1.18;letter-spacing:-.035em;margin:0;color:var(--green-dark)}.article-summary{font-size:19px;color:var(--muted);margin:20px 0 0;max-width:850px}.article-meta{display:flex;gap:12px;margin-top:18px;color:var(--muted);font-size:13px}.article-meta span+span::before{content:"·";margin-right:12px}.prose{font-size:18px;line-height:1.9;padding-top:26px}.prose p{margin:0 0 1.4em}.prose h2{font-size:28px;margin:1.7em 0 .6em;color:var(--green-dark)}.article-tags{display:flex;flex-wrap:wrap;gap:8px;padding-top:14px;border-top:1px solid var(--line)}.article-tags span{background:var(--green-soft);color:#506158;padding:6px 10px;border-radius:999px;font-size:13px}.article-aside{position:relative}.rail-card--sticky{position:sticky;top:94px}.related-block{border-top:1px solid var(--line);margin-top:46px}
.not-found{min-height:62vh;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;max-width:760px}.error-code{font-size:80px;line-height:1;margin:0;color:#d9e6de;font-weight:900}.not-found h1{font-size:40px;margin:10px 0}.not-found>p:not(.error-code){color:var(--muted);font-size:18px}
@media (max-width:980px){
  .lead-strip,.content-layout,.split-feature,.community-preview,.page-intro--split,.page-intro--community,.visual-band-grid,.app-hero,.article-layout,.note-panel{grid-template-columns:1fr}
  .rail,.rail-card--sticky{position:static}.lead-media{max-width:720px}.split-feature{gap:28px}.community-preview{gap:28px}.page-intro--split{gap:18px}.page-intro--split>p{margin:0}.app-hero img{justify-self:start;max-width:520px}.article-aside{order:-1}.article-aside .rail-card{max-width:none}.footer-grid{flex-direction:column}.primary-nav{gap:2px}.primary-nav a{padding-inline:9px}
}
@media (max-width:760px){
  :root{--shell:min(100% - 24px,1180px)}
  .site-header{position:relative}.header-inner{min-height:64px}.menu-toggle{display:inline-flex}.primary-nav{display:none;position:absolute;left:12px;right:12px;top:60px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:11px 12px}
  .lead-strip{padding-block:34px 30px;gap:28px}.lead-copy h1{font-size:42px}.lead{font-size:17px}.signal-grid{grid-template-columns:1fr}.signal-grid a,.signal-grid a:first-child,.signal-grid a:last-child{padding:16px 0;border-right:0;border-bottom:1px solid var(--line)}.signal-grid a:last-child{border-bottom:0}
  .section-space{padding-block:42px}.section-heading{align-items:flex-start;flex-direction:column;gap:10px}.section-heading h2{font-size:27px}.feed-list--two,.board-grid,.question-wall,.mobile-steps,.community-code ul{grid-template-columns:1fr}.masonry-feed{columns:1}.community-list{grid-template-columns:1fr}.community-list .feed-item:nth-child(odd){border-right:0}.helper-row{align-items:flex-start;flex-direction:column}.evidence-grid{grid-template-columns:1fr}.footer-grid nav{grid-template-columns:1fr 1fr}.page-intro{padding-block:36px 24px}.page-intro h1{font-size:38px}.community-code{padding:24px}.article-layout{gap:24px}.prose{font-size:17px}.not-found h1{font-size:34px}.error-code{font-size:64px}
}
@media (max-width:480px){
  .lead-copy h1{font-size:36px}.lead-actions{flex-direction:column;align-items:stretch}.button{width:100%}.board-card{min-height:210px}.footer-grid nav{grid-template-columns:1fr}.site-footer{padding-inline:18px}.feed-item{padding:20px}.page-intro h1{font-size:34px}.article-header h1{font-size:34px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}