:root{
    --primary:#6D28D9;--primary-soft:#A78BFA;--dark:#17151C;--bg:#F7F5FA;--soft:#ECE8F2;--text:#27242D;--muted:#716B78;--accent:#F59E0B;--white:#fff;--line:#D8D2DE;--shadow:0 16px 50px rgba(36,28,47,.10);--radius:20px;--shell:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;text-rendering:optimizeLegibility}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(calc(100% - 40px),var(--shell));margin-inline:auto}.narrow{width:min(calc(100% - 40px),820px);margin-inline:auto}.skip-link{position:fixed;left:14px;top:-80px;z-index:200;background:var(--accent);color:#231b08;padding:10px 14px;border-radius:8px}.skip-link:focus{top:14px}.site-header{position:sticky;top:0;z-index:100;background:rgba(247,245,250,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(109,40,217,.10)}.header-row{min-height:76px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;min-width:210px}.brand img{width:44px;height:44px;object-fit:contain;border-radius:12px}.brand span{display:flex;flex-direction:column;line-height:1.18}.brand strong{font-size:20px}.brand small{margin-top:5px;color:var(--muted);font-size:12px}.primary-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.primary-nav a{padding:10px 12px;border-radius:10px;font-weight:650}.primary-nav a:hover,.primary-nav a:focus-visible{background:var(--soft);color:var(--primary)}.search-open,.menu-toggle{border:0;border-radius:12px;padding:10px 14px;cursor:pointer}.search-open{background:var(--dark);color:var(--white)}.menu-toggle{display:none;background:var(--soft);color:var(--text)}.band-dark{background:var(--dark);color:var(--white)}.band-soft{background:var(--soft)}.home-intro{padding:70px 0 64px}.home-intro-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);gap:58px;align-items:center}.home-copy h1,.page-hero h1,.article-head h1,.not-found h1{font-size:clamp(2.2rem,5vw,4.8rem);line-height:1.08;letter-spacing:-.045em;margin:10px 0 22px}.home-copy h1{max-width:900px}.lead{font-size:clamp(1.05rem,1.8vw,1.3rem);line-height:1.75;color:inherit;opacity:.88;max-width:850px}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:800;color:var(--primary)}.band-dark .eyebrow{color:var(--primary-soft)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:12px;font-weight:750;border:1px solid transparent}.button.primary{background:var(--primary);color:var(--white)}.button.accent{background:var(--accent);color:#261a05}.button.ghost{border-color:rgba(255,255,255,.35);color:var(--white);background:rgba(255,255,255,.06)}.button.secondary{border-color:var(--line);background:var(--white)}.signal-list{list-style:none;margin:34px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.18)}.signal-list li{padding:18px 18px 0 0;display:flex;flex-direction:column;gap:4px}.signal-list strong{font-size:13px;color:var(--primary-soft)}.signal-list span{font-size:14px;color:rgba(255,255,255,.78)}.hero-visual{margin:0}.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:28px;box-shadow:0 32px 90px rgba(0,0,0,.35)}.hero-visual figcaption,.page-hero figcaption{font-size:13px;opacity:.72;margin-top:12px}.section{padding:84px 0}.section-tight{padding:56px 0}.split-index{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:58px;align-items:start}.split-index h2,.section-heading h2,.map-intro h2,.free-explain h2,.closing-grid h2,.relation-grid h2,.faq-close h2,.checklist h2{font-size:clamp(1.7rem,3vw,2.7rem);line-height:1.22;letter-spacing:-.025em;margin:8px 0 18px}.split-index p,.free-explain p,.map-intro p,.closing-grid p,.relation-grid p{color:var(--muted)}.index-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.index-panel h3{margin-top:0}.index-panel ol{margin:0;padding-left:22px}.index-panel li+li{margin-top:12px}.text-link{display:inline-block;margin-top:12px;color:var(--primary);font-weight:750;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.section-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,440px);gap:38px;align-items:end;margin-bottom:30px}.section-heading.wide-heading{grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr)}.section-heading p{margin:0;color:var(--muted)}.story-list{border-top:1px solid var(--line)}.story-row{display:grid;grid-template-columns:170px minmax(0,1fr);gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}.story-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}.story-row h3{margin:4px 0 8px;font-size:1.32rem;line-height:1.35}.story-row h3 a:hover{color:var(--primary)}.story-row p:not(.eyebrow){margin:0;color:var(--muted)}.story-list-featured{display:grid;grid-template-columns:1fr 1fr;gap:0 34px}.story-list-featured .story-row{grid-template-columns:130px minmax(0,1fr)}.section-cta{margin-top:34px;display:flex;justify-content:center}.free-explain{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,.8fr);gap:58px;align-items:center}.free-explain figure{margin:0}.free-explain img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:22px}.free-explain figcaption{font-size:13px;color:var(--muted);margin-top:10px}.map-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:60px}.map-links{border-top:1px solid var(--line)}.map-link{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;padding:22px 0;border-bottom:1px solid var(--line);align-items:start}.map-link span{font-weight:800;font-size:1.12rem}.map-link small{font-size:15px;color:var(--muted)}.map-link:hover span{color:var(--primary)}.dimension-teaser{padding:72px 0}.teaser-grid{display:grid;grid-template-columns:360px minmax(0,1fr);gap:54px;align-items:center}.teaser-grid img{width:100%;aspect-ratio:5/3;object-fit:cover;border-radius:20px}.teaser-grid h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.18;margin:8px 0 18px}.teaser-grid p:not(.eyebrow){color:rgba(255,255,255,.75)}.closing-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.8fr);gap:60px}.closing-links,.relation-links{display:grid;border-top:1px solid var(--line)}.closing-links a,.relation-links a{padding:14px 0;border-bottom:1px solid var(--line);font-weight:700}.closing-links a:hover,.relation-links a:hover{color:var(--primary)}.page-hero{padding:58px 0 52px}.page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:58px;align-items:center}.page-hero h1{font-size:clamp(2.1rem,4vw,4rem)}.page-hero figure{margin:0}.page-hero figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:22px}.breadcrumb{margin-bottom:24px}.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#aaa2af}.band-dark .breadcrumb{color:rgba(255,255,255,.65)}.intro-note{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:40px;align-items:center}.intro-note h2{font-size:1.65rem;margin:0 0 10px}.intro-note p{color:var(--muted)}.intent-strip{background:var(--dark);color:var(--white);border-radius:18px;padding:24px;display:grid;gap:6px}.intent-strip span{font-size:12px;color:var(--primary-soft);font-weight:800;text-transform:uppercase;letter-spacing:.12em}.intent-strip strong{font-size:1.2rem}.intent-strip small{color:rgba(255,255,255,.68)}.relation-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.75fr);gap:60px}.article-head{padding:48px 0 32px;background:var(--soft)}.article-shell{max-width:920px}.article-head h1{font-size:clamp(2.2rem,5vw,4.2rem);margin-bottom:18px}.article-deck{font-size:1.2rem;color:var(--muted);max-width:820px}.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.article-tags span{padding:6px 10px;background:var(--white);border:1px solid var(--line);border-radius:999px;font-size:13px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;align-items:start}.article-main{font-size:1.08rem}.article-main p{margin:0 0 1.45em}.article-main h2{font-size:1.75rem;line-height:1.3;margin:2.2em 0 .8em}.article-image{margin:0 0 36px}.article-image img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:22px}.takeaway{margin-top:44px;padding:28px;background:var(--soft);border-radius:18px}.takeaway h2{margin-top:0}.takeaway li+li{margin-top:9px}.article-aside{position:sticky;top:104px;border-left:3px solid var(--primary);padding:8px 0 8px 22px}.article-aside h2{margin:4px 0 8px}.article-aside p{color:var(--muted)}.article-aside .button{margin-top:10px;width:100%}.article-aside .text-link{font-size:14px}.guide-steps{display:grid;grid-template-columns:1fr 1fr;gap:0 52px}.guide-steps article{position:relative;padding:34px 0 34px 58px;border-top:1px solid var(--line)}.guide-steps span{position:absolute;left:0;top:34px;font-weight:900;color:var(--primary);font-size:1.3rem}.guide-steps h2{margin:0 0 10px;font-size:1.45rem;line-height:1.35}.guide-steps p{margin:0;color:var(--muted)}.checklist{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:58px}.checklist ol{margin:0;padding-left:24px}.checklist li{padding:10px 0;border-bottom:1px solid rgba(39,36,45,.12)}.faq-list{max-width:940px}.faq-item{border-bottom:1px solid var(--line)}.faq-item h2{margin:0}.faq-question{width:100%;border:0;background:transparent;text-align:left;padding:22px 0;display:flex;justify-content:space-between;gap:20px;cursor:pointer;font-weight:800;font-size:1.15rem;color:var(--text)}.faq-question span{font-size:1.4rem;color:var(--primary)}.faq-answer{padding:0 0 24px;color:var(--muted);max-width:820px}.faq-answer p{margin:0}.faq-close{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:50px;align-items:center}.faq-close a{display:block;padding:10px 0;color:var(--primary-soft);font-weight:700}.search-modal{position:fixed;inset:0;z-index:180;background:rgba(23,21,28,.72);display:grid;place-items:start center;padding-top:12vh}.search-modal[hidden]{display:none !important}.search-panel{position:relative;width:min(calc(100% - 32px),720px);background:var(--bg);border-radius:22px;padding:32px;box-shadow:0 35px 110px rgba(0,0,0,.35)}.search-panel h2{font-size:2rem;margin:4px 0 20px}.search-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:32px;cursor:pointer}.search-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}.search-line{display:flex;gap:10px}.search-line input{flex:1;min-width:0;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:13px 14px}.search-line button{border:0;background:var(--primary);color:var(--white);font-weight:750;padding:10px 18px;border-radius:12px;cursor:pointer}.search-page{padding:62px 0}.page-search{margin-top:26px}.empty-state{padding:60px 0;max-width:760px}.empty-state h2{font-size:2rem;margin-bottom:12px}.empty-state p{color:var(--muted)}.suggest-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.suggest-links a{background:var(--white);border:1px solid var(--line);padding:10px 14px;border-radius:10px;font-weight:700}.prose-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 52px}.prose-grid article{border-top:1px solid var(--line);padding:30px 0}.prose-grid h2{margin:0 0 10px;font-size:1.45rem}.prose-grid p{margin:0;color:var(--muted)}.not-found{padding:100px 0}.error-code{font-size:clamp(5rem,16vw,10rem);font-weight:950;line-height:.85;margin:0;color:var(--primary);letter-spacing:-.07em}.not-found h1{font-size:clamp(2rem,4vw,3.6rem)}.site-footer{background:#111015;color:var(--white);padding:64px 0 22px}.footer-grid{display:grid;grid-template-columns:1.25fr .8fr .8fr;gap:60px}.footer-grid h2{font-size:1.1rem;margin:0 0 16px}.footer-grid p{color:rgba(255,255,255,.62);max-width:500px}.footer-grid a{display:block;padding:5px 0;color:rgba(255,255,255,.74)}.footer-grid a:hover{color:var(--primary-soft)}.footer-bottom{margin-top:42px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;color:rgba(255,255,255,.5);font-size:13px}.back-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border:0;border-radius:50%;background:var(--primary);color:var(--white);box-shadow:var(--shadow);cursor:pointer;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}.back-top.visible{opacity:1;pointer-events:auto;transform:none}
@media (max-width:1024px){.primary-nav{position:absolute;left:20px;right:20px;top:70px;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:var(--shadow);display:none;flex-direction:column;align-items:stretch}.primary-nav.open{display:flex}.menu-toggle{display:block;margin-left:auto}.search-open{margin-left:0}.home-intro-grid,.page-hero-grid{grid-template-columns:1fr .7fr;gap:36px}.story-list-featured{grid-template-columns:1fr}.map-layout{grid-template-columns:280px 1fr}.article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:42px}}
@media (max-width:768px){.shell{width:min(calc(100% - 28px),var(--shell))}.brand{min-width:0}.brand small{display:none}.header-row{gap:10px}.search-open{padding:9px 11px}.home-intro{padding:48px 0}.home-intro-grid,.page-hero-grid,.split-index,.free-explain,.map-layout,.teaser-grid,.closing-grid,.intro-note,.relation-grid,.article-layout,.checklist,.faq-close,.footer-grid{grid-template-columns:1fr}.signal-list{grid-template-columns:1fr}.signal-list li{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12)}.hero-visual img{aspect-ratio:16/10}.section{padding:60px 0}.section-heading,.section-heading.wide-heading{grid-template-columns:1fr;gap:10px}.story-row,.story-list-featured .story-row{grid-template-columns:112px minmax(0,1fr);gap:16px}.story-row h3{font-size:1.08rem}.story-row p:not(.eyebrow){font-size:14px}.map-link{grid-template-columns:1fr;gap:4px}.teaser-grid img{max-width:420px}.page-hero figure{max-width:460px}.article-aside{position:static;border-left:0;border-top:3px solid var(--primary);padding:22px 0 0}.guide-steps,.prose-grid{grid-template-columns:1fr}.footer-grid{gap:30px}.search-modal{padding-top:7vh}}
@media (max-width:600px){body{font-size:15px}.home-copy h1,.page-hero h1,.article-head h1{font-size:2.25rem}.hero-actions{display:grid}.button{width:100%}.story-row,.story-list-featured .story-row{grid-template-columns:92px minmax(0,1fr)}.story-thumb img{aspect-ratio:1/1}.story-row .text-link{font-size:13px}.search-line{display:grid}.search-line button{min-height:44px}.article-main{font-size:1rem}.article-main h2{font-size:1.5rem}.faq-question{font-size:1.02rem}.site-footer{padding-top:48px}}
@media (max-width:375px){.shell{width:min(calc(100% - 22px),var(--shell))}.brand strong{font-size:18px}.brand img{width:38px;height:38px}.menu-toggle{padding:8px 9px}.search-open{padding:8px 9px}.home-copy h1,.page-hero h1,.article-head h1{font-size:2rem}.story-row,.story-list-featured .story-row{grid-template-columns:1fr}.story-thumb img{aspect-ratio:16/9}.footer-bottom{gap:12px;flex-direction:column}}

.filter-links{display:flex;flex-wrap:wrap;gap:8px}.filter-links a{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:var(--white);font-size:13px}.filter-links a[aria-current="page"],.filter-links a:hover{background:var(--primary);border-color:var(--primary);color:var(--white)}.glossary-list{display:grid;grid-template-columns:1fr 1fr;gap:22px}.glossary-entry{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:24px}.glossary-entry h2{font-size:1.3rem;line-height:1.35;margin:5px 0 10px}.glossary-summary{color:var(--muted)}.glossary-entry details{border-top:1px solid var(--line);margin-top:18px;padding-top:14px}.glossary-entry summary{cursor:pointer;color:var(--primary);font-weight:750}.glossary-entry details p{color:var(--muted)}.glossary-results{display:grid;grid-template-columns:1fr 1fr;gap:12px}.glossary-results a{display:grid;gap:4px;padding:16px;border:1px solid var(--line);background:var(--white);border-radius:14px}.glossary-results a:hover strong{color:var(--primary)}.glossary-results span{font-size:14px;color:var(--muted)}.glossary-search-heading{margin-top:56px}
@media (max-width:768px){.glossary-list,.glossary-results{grid-template-columns:1fr}}