:root{--green:#2F7D5B;--pink:#D96C8A;--ink:#1F2A26;--bg:#F7F8F5;--soft:#EEF3EF;--text:#28312D;--muted:#6B756F;--orange:#E58A3A;--white:#fff;--line:#D9E2DB;--shadow:0 14px 40px rgba(31,42,38,.08);--radius:22px}*{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:1.72}img{display:block;max-width:100%;height:auto}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}.narrow{width:min(860px,calc(100% - 40px))}.skip-link{position:fixed;left:16px;top:-80px;background:var(--ink);color:white;padding:10px 14px;z-index:1000;border-radius:10px}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,226,219,.9)}.header-inner{width:min(1240px,calc(100% - 32px));min-height:74px;margin:auto;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--ink);font-size:1.18rem}.brand img{width:42px;height:42px;object-fit:contain;border-radius:13px}.primary-nav{display:flex;justify-content:center;gap:7px}.primary-nav a{padding:8px 11px;border-radius:999px;color:#4b5751;font-size:.95rem}.primary-nav a.is-active,.primary-nav a:hover{background:var(--soft);color:var(--green)}.header-search{display:flex;gap:6px}.header-search input{width:180px;border:1px solid var(--line);background:white;border-radius:999px;padding:9px 12px}.header-search button,.search-large button{border:0;background:var(--green);color:white;border-radius:999px;padding:9px 14px;cursor:pointer}.menu-toggle{display:none}.lead-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:56px 0 28px}.lead-copy h1,.page-hero h1{margin:.2em 0;font-size:clamp(2.3rem,5vw,5.4rem);line-height:1.03;letter-spacing:-.045em;color:var(--ink)}.lead{font-size:1.13rem;color:#56635d;max-width:42rem}.eyebrow{color:var(--green);font-size:.82rem;font-weight:900;letter-spacing:.09em;text-transform:uppercase;margin:0 0 7px}.lead-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 17px;border-radius:999px;font-weight:800}.btn.primary{background:var(--green);color:#fff}.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}.lead-visual img{border-radius:32px;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}.ticker{display:flex;gap:16px;align-items:center;padding:13px 16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}.ticker strong{white-space:nowrap;color:var(--ink)}.ticker-links{display:flex;gap:10px;overflow:auto;scrollbar-width:none}.ticker-links a{white-space:nowrap;background:var(--soft);padding:5px 11px;border-radius:999px;font-size:.9rem}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;padding:52px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:20px}.section-heading h2{font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.1;margin:0;color:var(--ink)}.section-heading>a{color:var(--green);font-weight:800}.story-list{display:grid;gap:14px}.story-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 24px rgba(31,42,38,.035)}.story-card.horizontal{display:grid;grid-template-columns:230px 1fr}.story-media img{width:100%;height:100%;min-height:190px;object-fit:cover}.story-body{padding:19px}.story-card h3{margin:2px 0 8px;font-size:1.15rem;line-height:1.35;color:var(--ink)}.story-card p{margin:0;color:var(--muted);font-size:.94rem}.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}.tag-row span{background:var(--soft);color:#506057;border-radius:999px;padding:3px 9px;font-size:.78rem}.side-stack{display:grid;align-content:start;gap:18px}.side-panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:21px}.side-panel.accent-green{background:var(--ink);color:#e9f1ec;border:0}.side-panel.accent-green .eyebrow{color:#91d1ad}.side-panel h2{line-height:1.2;margin:.25em 0;color:inherit}.side-panel img{border-radius:15px;margin-bottom:18px;aspect-ratio:16/9;object-fit:cover}.side-panel a{display:inline-block;margin-top:10px;color:var(--orange);font-weight:900}.spotlight{padding:24px 0 52px}.spotlight-grid,.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.spotlight-grid .story-media img,.story-grid .story-media img{aspect-ratio:16/10;object-fit:cover}.community-strip{display:grid;grid-template-columns:1fr .85fr;gap:38px;align-items:center;background:var(--soft);border-radius:32px;padding:32px;margin-bottom:52px}.community-copy h2{font-size:clamp(1.8rem,4vw,3.4rem);line-height:1.08;margin:.2em 0}.community-strip img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.utility-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding-bottom:64px}.utility-grid article{background:white;border:1px solid var(--line);padding:20px;border-radius:var(--radius)}.utility-grid img{border-radius:16px;aspect-ratio:16/9;object-fit:cover}.utility-grid h2{margin-bottom:5px}.utility-grid a{color:var(--green);font-weight:800}.site-footer{background:var(--ink);color:#d9e2dd;padding:46px max(20px,calc((100% - 1180px)/2)) 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px}.footer-grid h2{font-size:1rem;margin-top:0}.footer-grid a{display:block;padding:4px 0;color:#dce7e0}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;margin-top:28px;color:#9fb0a7;font-size:.88rem}.page-space{padding-top:28px;padding-bottom:70px}.breadcrumbs ol{display:flex;gap:8px;list-style:none;padding:0;margin:0 0 24px;font-size:.88rem;color:var(--muted)}.breadcrumbs li:not(:last-child)::after{content:"/";margin-left:8px;color:#a5afa9}.page-hero{padding:38px 0 46px}.page-hero.compact,.page-hero.simple{max-width:900px}.page-hero.compact h1,.page-hero.simple h1{font-size:clamp(2.2rem,5vw,4.8rem)}.page-hero.dark{background:var(--ink);color:#e7efe9;padding:38px;border-radius:30px;margin-bottom:36px}.page-hero.dark h1{color:white;font-size:clamp(2.1rem,5vw,4.7rem)}.page-hero.dark .eyebrow{color:#9bd5b3}.feature-pair,.split-note,.mobile-guide{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;margin-bottom:52px}.feature-pair>div:first-child,.checklist,.split-note,.mobile-guide{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.feature-pair img,.split-note img,.mobile-guide img{border-radius:16px;aspect-ratio:16/10;object-fit:cover}.checklist ul{padding-left:1.2rem}.checklist li{margin:10px 0}.discussion-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.discussion-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.discussion-card>span{color:var(--pink);font-size:.82rem;font-weight:900}.discussion-card h2{line-height:1.25}.discussion-card a{color:var(--green);font-weight:800}.community-hero,.app-hero{display:grid;grid-template-columns:1fr .8fr;gap:34px;align-items:center}.community-hero img,.app-hero img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.community-rules{margin-top:44px;background:var(--soft);padding:26px;border-radius:var(--radius)}.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.rule-grid>div{background:white;border-radius:16px;padding:17px}.info-columns,.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:48px}.info-columns article,.contact-cards article{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.contact-cards{grid-template-columns:repeat(2,1fr)}.prose{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px}.prose h2{margin-top:1.5em;color:var(--ink)}.prose h2:first-child{margin-top:0}.notice-box,.empty-state{background:var(--soft);border-left:4px solid var(--orange);padding:18px;border-radius:12px}.article-shell{max-width:1000px}.article-detail>header{max-width:860px;margin-bottom:28px}.article-detail h1{font-size:clamp(2.1rem,5vw,4.3rem);line-height:1.08;margin:.2em 0}.article-deck{font-size:1.14rem;color:var(--muted)}.article-hero{width:100%;border-radius:28px;aspect-ratio:16/9;object-fit:cover}.article-body{max-width:760px;margin:34px auto;font-size:1.06rem}.article-body h2{font-size:1.75rem;line-height:1.25;margin-top:1.7em}.article-body aside{background:var(--soft);padding:18px 20px;border-radius:16px;margin-top:30px}.related{margin-top:60px}.search-large{margin-top:24px}.search-large label{font-weight:800;display:block;margin-bottom:7px}.search-large>div{display:flex;gap:8px}.search-large input{flex:1;border:1px solid var(--line);border-radius:999px;padding:11px 14px;background:white}.error-page{min-height:62vh;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;max-width:780px}.error-page h1{font-size:clamp(3rem,8vw,7rem);line-height:1;margin:.12em 0}.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}:focus-visible{outline:3px solid rgba(229,138,58,.5);outline-offset:3px}@media(max-width:980px){.header-inner{grid-template-columns:auto auto 1fr}.menu-toggle{display:inline-flex;justify-self:start;border:1px solid var(--line);background:white;border-radius:999px;padding:8px 12px}.primary-nav{position:absolute;left:16px;right:16px;top:68px;display:none;flex-direction:column;background:white;padding:14px;border-radius:18px;box-shadow:var(--shadow);border:1px solid var(--line)}.primary-nav.is-open{display:flex}.header-search{justify-self:end}.lead-grid,.content-layout,.community-strip,.feature-pair,.split-note,.community-hero,.app-hero,.mobile-guide{grid-template-columns:1fr}.content-layout{gap:20px}.side-stack{grid-template-columns:repeat(2,1fr)}.spotlight-grid,.story-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.info-columns{grid-template-columns:1fr 1fr}}@media(max-width:680px){.shell,.narrow{width:min(100% - 24px,1180px)}.header-inner{width:calc(100% - 20px);grid-template-columns:1fr auto}.header-search{display:none}.brand span{font-size:1rem}.lead-grid{padding-top:34px;gap:22px}.lead-copy h1{font-size:2.55rem}.story-card.horizontal{grid-template-columns:1fr}.story-card.horizontal .story-media img{aspect-ratio:16/9;min-height:0}.side-stack,.spotlight-grid,.story-grid,.utility-grid,.discussion-grid,.rule-grid,.info-columns,.contact-cards,.footer-grid{grid-template-columns:1fr}.community-strip{padding:22px}.page-hero.dark{padding:25px}.page-hero h1{font-size:2.5rem}.section-heading{align-items:flex-start;flex-direction:column}.footer-grid>div:first-child{grid-column:auto}.search-large>div{align-items:stretch}.search-large input{min-width:0}.ticker{width:100%;padding-left:12px;padding-right:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.faq-list{display:grid;gap:12px}.faq-list details{background:white;border:1px solid var(--line);border-radius:16px;padding:0 18px}.faq-list summary{cursor:pointer;font-weight:850;color:var(--ink);padding:17px 0}.faq-list details p{margin:0;padding:0 0 18px;color:var(--muted)}.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.glossary-grid article{background:white;border:1px solid var(--line);border-radius:18px;padding:18px}.glossary-grid h2{font-size:1.08rem;margin:0 0 6px;color:var(--ink)}.glossary-grid p{margin:0;color:var(--muted)}@media(max-width:680px){.glossary-grid{grid-template-columns:1fr}}