:root{--green:#2F7D5B;--green-2:#255f47;--pink:#D96C8A;--ink:#1F2A26;--bg:#F7F8F5;--soft:#EEF3EF;--text:#28312D;--muted:#6B756F;--orange:#E58A3A;--line:#dce4de;--white:#fff;--shadow:0 18px 50px rgba(31,42,38,.08);--radius:22px;--max:1180px}*{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","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(47,125,91,.12)}.site-header__inner{max-width:var(--max);margin:auto;padding:14px 24px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.brand__logo{width:42px;height:42px;object-fit:contain}.brand__text{display:flex;flex-direction:column;line-height:1.1}.brand__text strong{font-size:20px;color:var(--ink)}.brand__text small{font-size:11px;color:var(--muted);letter-spacing:.08em;margin-top:4px}.primary-nav{display:flex;align-items:center;gap:4px}.nav-link{padding:9px 13px;border-radius:999px;color:#425048;font-size:14px}.nav-link:hover,.nav-link.is-active{background:var(--soft);color:var(--green);font-weight:700}.nav-toggle{display:none;border:0;background:none;width:42px;height:42px;padding:9px}.nav-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}.hero-shell,.section-shell,.page-hero,.app-hero,.article-shell,.breadcrumbs{max-width:var(--max);margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}.hero-shell{padding-top:46px;padding-bottom:34px;display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:stretch}.hero-copy{padding:28px 0 18px}.eyebrow{margin:0 0 10px;color:var(--green);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.hero-copy h1,.page-hero h1,.app-hero h1,.article-header h1{margin:0;color:var(--ink);font-size:clamp(36px,5.4vw,66px);line-height:1.08;letter-spacing:-.045em}.hero-lead,.page-hero>div>p:last-child,.app-hero>div>p:last-of-type{max-width:760px;font-size:18px;color:#53615a;margin:22px 0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:12px;font-weight:750;font-size:14px;border:1px solid transparent}.button--primary{background:var(--green);color:white}.button--primary:hover{background:var(--green-2)}.button--ghost{border-color:#b9c8bf;background:rgba(255,255,255,.55);color:var(--ink)}.button--dark{background:var(--ink);color:#fff}.trend-strip{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:13px}.trend-strip span{color:var(--muted)}.trend-strip a{font-weight:700;color:var(--green)}.hero-feature{position:relative;min-height:480px;border-radius:30px;overflow:hidden;background:var(--ink);box-shadow:var(--shadow)}.hero-feature img{width:100%;height:100%;object-fit:cover;opacity:.78}.hero-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 25%,rgba(31,42,38,.92) 100%)}.hero-feature div{position:absolute;z-index:2;left:28px;right:28px;bottom:26px;color:#fff}.hero-feature span{display:inline-block;background:var(--orange);padding:5px 9px;border-radius:8px;font-size:12px;font-weight:800}.hero-feature strong{display:block;font-size:27px;line-height:1.22;margin:12px 0 8px}.hero-feature p{margin:0;color:rgba(255,255,255,.82);font-size:14px}.section-shell{padding-top:56px;padding-bottom:56px}.section-shell--flush{padding-top:34px}.section-heading{margin-bottom:24px}.section-heading h2,.topic-layout__intro h2,.community-teaser__copy h2,.utility-strip h2,.source-guide h2,.forum-board h2,.faq-list h2,.prose-grid h2,.note-panel h2,.cross-links h2{font-size:clamp(26px,3.4vw,42px);line-height:1.12;letter-spacing:-.03em;color:var(--ink);margin:0}.section-heading--split{display:flex;justify-content:space-between;gap:40px;align-items:end}.section-heading--split>p{max-width:520px;margin:0;color:var(--muted)}.lead-grid{display:grid;grid-template-columns:1.45fr .55fr;gap:28px}.lead-grid__main{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.lead-grid__rail{border-left:1px solid var(--line);padding-left:24px}.story-card{background:var(--white);border:1px solid #e4e9e5;border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 24px rgba(31,42,38,.04);height:100%}.story-card__media{display:block;aspect-ratio:16/9;background:var(--soft);overflow:hidden}.story-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.story-card:hover .story-card__media img{transform:scale(1.025)}.story-card__body{padding:20px}.story-card__meta,.compact-story__meta,.article-meta{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:12px}.story-card__meta span,.compact-story__meta span{color:var(--green);font-weight:800}.story-card h3,.compact-story h3{margin:10px 0 8px;color:var(--ink);line-height:1.3}.story-card h3{font-size:21px}.story-card p,.compact-story p{color:var(--muted);margin:0;font-size:14px}.story-card--large h3{font-size:24px}.tag-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}.tag-row span{font-size:11px;padding:5px 8px;background:var(--soft);color:#52635a;border-radius:999px}.compact-story{display:grid;grid-template-columns:8px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.compact-story:first-child{padding-top:0}.compact-story__marker{width:8px;height:8px;background:var(--pink);border-radius:50%;margin-top:10px}.compact-story h3{font-size:18px}.accent-band{max-width:calc(var(--max) + 48px);background:var(--soft);border-radius:34px;margin-top:34px;padding-left:48px;padding-right:48px}.story-grid{display:grid;gap:18px}.story-grid--3{grid-template-columns:repeat(3,1fr)}.story-grid--2{grid-template-columns:repeat(2,1fr)}.text-link{font-weight:800;color:var(--green)}.ticker-list{margin-top:24px;border-top:1px solid #d6dfd9}.ticker-list a{display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;padding:16px 0;border-bottom:1px solid #d6dfd9}.ticker-list span{font-size:12px;color:var(--pink);font-weight:800}.ticker-list time{font-size:12px;color:var(--muted)}.topic-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px;align-items:start}.topic-layout__intro{position:sticky;top:110px}.topic-layout__intro p:not(.eyebrow){color:var(--muted);margin:16px 0 22px}.community-teaser{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;background:#fff;border-radius:34px;margin-top:24px}.community-teaser__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px}.community-teaser__copy>p{color:var(--muted)}.community-links{margin:22px 0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.community-links div{padding:13px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}.community-links strong{font-size:14px}.community-links span{font-size:11px;color:var(--pink);white-space:nowrap}.utility-strip{display:flex;justify-content:space-between;gap:30px;align-items:center;padding-top:34px;padding-bottom:34px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:40px}.utility-strip h2{font-size:28px}.utility-strip p{margin:6px 0 0;color:var(--muted)}.breadcrumbs{padding-top:20px;padding-bottom:0}.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#aab4ae}.breadcrumbs a:hover{color:var(--green)}.page-hero{padding-top:44px;padding-bottom:46px;display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}.page-hero h1{font-size:clamp(34px,4.8vw,58px)}.page-hero img{border-radius:26px;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}.page-hero--dark{background:var(--ink);max-width:calc(var(--max) + 48px);border-radius:32px;color:#fff;margin-top:24px;padding-left:48px;padding-right:48px}.page-hero--dark h1{color:#fff}.page-hero--dark>div>p:last-child{color:#c9d2cd}.page-hero--dark .eyebrow{color:#f0aa6b}.page-hero--community{background:linear-gradient(135deg,#eef3ef,#f8edf1);max-width:calc(var(--max) + 48px);border-radius:32px;margin-top:24px;padding-left:48px;padding-right:48px}.source-guide__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.source-guide article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.source-guide article span{display:inline-flex;width:36px;height:36px;align-items:center;justify-content:center;background:var(--soft);color:var(--green);font-weight:800;border-radius:50%}.source-guide h3{margin:14px 0 6px;color:var(--ink)}.source-guide p{margin:0;color:var(--muted)}.note-panel{background:#fff7ec;border:1px solid #f3ddbf;border-radius:26px;padding-top:34px;padding-bottom:34px}.note-panel h2{font-size:28px}.note-panel p{max-width:850px;color:#655c50}.evidence-scale__list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.evidence-scale article{background:#fff;border-radius:18px;padding:24px;border-left:5px solid var(--green)}.evidence-scale strong{font-size:19px;color:var(--ink)}.evidence-scale p{color:var(--muted);margin:8px 0}.evidence-scale span{font-size:12px;font-weight:800;color:var(--orange)}.cross-links{display:grid;grid-template-columns:1fr .7fr;gap:40px;align-items:center;border-top:1px solid var(--line)}.cross-links h2{font-size:30px}.cross-links p{color:var(--muted)}.cross-links>div{display:grid;gap:10px}.cross-links a{display:block;background:var(--soft);padding:15px 18px;border-radius:12px;font-weight:800;color:var(--green)}.forum-board{background:#fff;border:1px solid var(--line);border-radius:26px;margin-top:24px;padding-top:28px;padding-bottom:28px}.forum-board__head{display:flex;align-items:end;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:18px}.forum-board__head h2{font-size:30px}.forum-board__head span{font-size:13px;color:var(--muted)}.forum-row{display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.forum-row:last-child{border-bottom:0}.forum-index{font-size:24px;font-weight:900;color:#c5d0ca}.forum-row h3{margin:0;color:var(--ink);font-size:18px}.forum-row p{margin:3px 0 0;color:var(--muted);font-size:14px}.forum-row b{font-size:12px;color:var(--pink);font-weight:800}.community-rules{display:flex;justify-content:space-between;gap:30px;align-items:center;background:var(--soft);border-radius:28px;margin-bottom:42px}.community-rules h2{font-size:28px}.community-rules p{margin-bottom:0;color:var(--muted)}.app-hero{padding-top:50px;padding-bottom:50px;display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}.phone-frame{max-width:360px;justify-self:center;background:var(--ink);padding:14px;border-radius:36px;box-shadow:0 30px 80px rgba(31,42,38,.18)}.phone-frame img{border-radius:26px;aspect-ratio:9/16;object-fit:cover}.phone-frame__caption{color:#fff;text-align:center;font-size:12px;padding:10px 0 2px}.app-feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.app-feature-grid article{padding:26px;border-radius:18px;background:#fff;border:1px solid var(--line)}.app-feature-grid h3{margin:0 0 8px;color:var(--ink)}.app-feature-grid p{margin:0;color:var(--muted)}.faq-list{max-width:900px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:0 18px}.faq-list summary{cursor:pointer;font-weight:800;color:var(--ink);padding:16px 0}.faq-list p{color:var(--muted);margin:0 0 18px}.page-hero--about{grid-template-columns:1fr .6fr}.prose-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px}.prose-grid h2{font-size:30px}.prose-grid p{color:#53615a}.article-shell{padding-top:38px;padding-bottom:28px;max-width:900px}.article-header{text-align:left}.article-header h1{font-size:clamp(34px,5vw,58px)}.article-deck{font-size:19px;color:#59675f;margin:18px 0}.article-meta{border-top:1px solid var(--line);padding-top:14px}.article-cover{margin:28px 0 0}.article-cover img{width:100%;max-height:560px;object-fit:cover;border-radius:26px}.article-cover figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px}.article-body{max-width:760px;margin:36px auto 0}.article-body p{font-size:17px;line-height:1.95;margin:0 0 22px;color:#35413b}.article-body h2{font-size:28px;line-height:1.25;color:var(--ink);margin:38px 0 14px}.article-note{margin:34px 0;background:var(--soft);border-left:4px solid var(--green);padding:18px 20px;border-radius:0 14px 14px 0}.article-note strong{color:var(--green)}.article-note p{font-size:14px;margin:6px 0 0}.tag-row--article{margin-top:30px;padding-top:18px;border-top:1px solid var(--line)}.related{padding-top:22px}.not-found{max-width:760px;margin:0 auto;padding:110px 24px;text-align:center}.not-found>span{font-size:100px;line-height:1;font-weight:900;color:#d8e1dc}.not-found h1{font-size:42px;margin:14px 0;color:var(--ink)}.not-found p{color:var(--muted)}.not-found .hero-actions{justify-content:center}.site-footer{background:var(--ink);color:#dce4df;margin-top:40px}.site-footer__inner{max-width:var(--max);margin:auto;padding:48px 24px 28px;display:grid;grid-template-columns:1.1fr .9fr;gap:30px}.footer-brand{font-size:24px;font-weight:900;color:#fff}.site-footer p{color:#aebcb4;max-width:520px}.site-footer nav{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;align-content:start}.site-footer nav a{font-size:14px}.site-footer nav a:hover{color:#fff}.footer-note{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:12px}
@media (max-width:960px){.primary-nav{position:fixed;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:12px;display:none;flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.nav-toggle{display:block}.nav-link{padding:12px}.hero-shell,.page-hero,.app-hero,.community-teaser,.topic-layout{grid-template-columns:1fr}.hero-feature{min-height:380px}.lead-grid{grid-template-columns:1fr}.lead-grid__rail{border-left:0;padding-left:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}.story-grid--3{grid-template-columns:repeat(2,1fr)}.topic-layout__intro{position:static}.section-heading--split{align-items:start}.source-guide__grid{grid-template-columns:1fr}.page-hero img{max-height:340px;width:100%}.cross-links{grid-template-columns:1fr}.site-footer__inner{grid-template-columns:1fr}.footer-note{grid-column:auto}}
@media (max-width:680px){.site-header__inner{padding:11px 16px}.brand__logo{width:36px;height:36px}.brand__text small{display:none}.hero-shell,.section-shell,.page-hero,.app-hero,.article-shell,.breadcrumbs{padding-left:16px;padding-right:16px}.hero-shell{padding-top:26px;gap:20px}.hero-copy h1,.page-hero h1,.app-hero h1,.article-header h1{font-size:36px}.hero-lead,.page-hero>div>p:last-child,.app-hero>div>p:last-of-type{font-size:16px}.hero-feature{min-height:330px;border-radius:22px}.hero-feature div{left:20px;right:20px;bottom:20px}.hero-feature strong{font-size:22px}.section-shell{padding-top:42px;padding-bottom:42px}.section-heading--split{display:block}.section-heading--split>p{margin-top:10px}.lead-grid__main,.lead-grid__rail,.story-grid--3,.story-grid--2,.app-feature-grid,.prose-grid,.evidence-scale__list{grid-template-columns:1fr}.lead-grid__rail{display:block}.accent-band,.page-hero--dark,.page-hero--community{border-radius:0;margin-left:0;margin-right:0;padding-left:16px;padding-right:16px}.community-teaser{border-radius:0;margin-left:0;margin-right:0}.community-links{grid-template-columns:1fr}.utility-strip,.community-rules{align-items:flex-start;flex-direction:column}.ticker-list a{grid-template-columns:1fr auto}.ticker-list span{grid-column:1/-1}.forum-row{grid-template-columns:38px 1fr}.forum-row b{grid-column:2}.site-footer nav{grid-template-columns:repeat(2,1fr)}.site-footer__inner{padding-left:16px;padding-right:16px}.article-body p{font-size:16px}.not-found{padding-top:80px;padding-bottom:80px}.not-found>span{font-size:76px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
:focus-visible{outline:3px solid rgba(229,138,58,.7);outline-offset:3px}
.search-shell{max-width:900px}.search-shell>h1{font-size:clamp(34px,5vw,52px);margin:0 0 20px;color:var(--ink)}.search-form{display:grid;grid-template-columns:1fr auto;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px}.search-form input{border:0;outline:0;min-width:0;padding:0 10px;background:transparent;color:var(--ink)}.search-status{color:var(--muted);margin:18px 0 26px}@media(max-width:560px){.search-form{grid-template-columns:1fr}.search-form .button{width:100%}}
.guide-step-list{display:grid;gap:12px}.guide-step-list article{display:grid;grid-template-columns:72px 1fr;gap:18px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.guide-step-list article>span{display:flex;width:54px;height:54px;align-items:center;justify-content:center;border-radius:50%;background:var(--soft);color:var(--green);font-weight:900}.guide-step-list h3{margin:0 0 8px;color:var(--ink);font-size:22px}.guide-step-list p{margin:8px 0;color:var(--muted)}.guide-matrix__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-matrix__grid article{padding:22px;background:#fff;border-top:4px solid var(--pink);border-radius:16px;box-shadow:0 8px 24px rgba(31,42,38,.04)}.guide-matrix__grid h3{margin:0 0 10px;color:var(--ink)}.guide-matrix__grid ul{margin:0;padding-left:20px;color:var(--muted)}.guide-matrix__grid li{margin:7px 0}.guide-cases__list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.guide-cases__list article{padding:22px;border:1px solid var(--line);border-radius:16px}.guide-cases__list h3{margin:0 0 8px;color:var(--ink)}.guide-cases__list p{margin:0;color:var(--muted)}.guide-summary{display:grid;grid-template-columns:.65fr 1.35fr;gap:40px;background:var(--ink);color:#fff;border-radius:28px;margin-bottom:42px}.guide-summary h2{color:#fff;font-size:34px;margin:0}.guide-summary .eyebrow{color:#f0aa6b}.guide-summary ol{margin:0;padding-left:24px}.guide-summary li{margin:8px 0;color:#d6e0da}.guide-summary__links{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.15);padding-top:20px}.guide-summary__links a{background:rgba(255,255,255,.08);padding:10px 13px;border-radius:10px;font-weight:700}@media(max-width:900px){.guide-matrix__grid{grid-template-columns:repeat(2,1fr)}.guide-summary{grid-template-columns:1fr}}@media(max-width:620px){.guide-step-list article{grid-template-columns:1fr}.guide-matrix__grid,.guide-cases__list{grid-template-columns:1fr}.guide-summary{border-radius:0;margin-left:0;margin-right:0}}