:root{
  --brand:#6D28D9; --brand-soft:#A78BFA; --ink:#27242D; --muted:#716B78; --deep:#17151C;
  --bg:#F7F5FA; --panel:#ECE8F2; --accent:#F59E0B; --line:#D9D2E1; --white:#fff;
  --radius:18px; --radius-sm:12px; --shadow:0 18px 42px rgba(34,25,45,.08); --max:1180px; --reading:780px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.72;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:12px;top:-80px;z-index:999;padding:10px 14px;background:#fff;color:#111;border-radius:8px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,250,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(109,40,217,.12)}.header-shell{max-width:var(--max);margin:auto;min-height:76px;display:flex;align-items:center;gap:24px;padding:10px 24px}.brand-mark{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:220px}.brand-mark img{width:42px;height:42px;object-fit:contain;border-radius:10px}.brand-mark span{display:flex;flex-direction:column;line-height:1.2}.brand-mark strong{font-size:18px;letter-spacing:.02em}.brand-mark small{margin-top:4px;color:var(--muted);font-size:11px}.primary-nav{display:flex;align-items:center;gap:18px;margin-left:auto}.primary-nav a{font-size:14px;text-decoration:none;color:#4c4653}.primary-nav a:hover,.primary-nav a:focus-visible{color:var(--brand)}.search-trigger,.nav-toggle{border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 14px;border-radius:999px}.search-trigger:hover,.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}.nav-toggle{display:none}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:120;display:grid;place-items:start center;padding:10vh 20px;background:rgba(23,21,28,.72)}.search-dialog{position:relative;width:min(680px,100%);background:#fff;border-radius:24px;padding:32px;box-shadow:0 32px 90px rgba(0,0,0,.3)}.search-dialog h2{margin:0 40px 8px 0;font-size:28px}.search-dialog p{margin:0 0 24px;color:var(--muted)}.search-close{position:absolute;right:18px;top:16px;width:38px;height:38px;border:0;border-radius:50%;background:var(--panel);font-size:26px;line-height:1}.search-form label,.inline-search label{display:block;font-weight:700;margin-bottom:8px}.search-row,.inline-search>div{display:flex;gap:10px}.search-row input,.inline-search input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 14px;outline:none}.search-row input:focus,.inline-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,40,217,.12)}.search-row button,.inline-search button{border:0;border-radius:12px;background:var(--brand);color:#fff;padding:0 20px}.section{max-width:var(--max);margin:0 auto;padding:76px 24px}.section-tight{padding-top:54px;padding-bottom:54px}.section-dark{background:var(--deep);color:#fff}.home-intro{padding:72px 24px}.home-intro-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.intro-copy h1,.page-hero h1,.article-header h1,.not-found h1{margin:0;line-height:1.12;letter-spacing:-.035em}.intro-copy h1{font-size:clamp(38px,5vw,64px);max-width:780px}.lead{font-size:18px;line-height:1.8;color:var(--muted)}.section-dark .lead{color:#d8d0de}.eyebrow{margin:0 0 12px;text-transform:uppercase;letter-spacing:.13em;font-size:12px;font-weight:800;color:var(--brand)}.section-dark .eyebrow{color:var(--brand-soft)}.intro-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:12px;background:var(--brand);color:#fff;text-decoration:none;border:0;font-weight:700}.button-accent{background:var(--accent);color:#241704}.text-link{color:#fff;font-weight:700}.text-button{border:0;background:transparent;color:var(--brand);font-weight:700;padding:8px 0}.identity-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:34px 0 0;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:14px;overflow:hidden}.identity-strip div{padding:16px;background:#211d28}.identity-strip dt{font-size:11px;color:#aea6b5}.identity-strip dd{margin:4px 0 0;font-size:13px;font-weight:700}.intro-visual{margin:0}.intro-visual img{width:100%;aspect-ratio:1.35;object-fit:cover;border-radius:26px;border:1px solid rgba(255,255,255,.12);background:#29232f}.intro-visual figcaption{margin-top:10px;color:#b9b2bf;font-size:12px}.narrow-head,.narrow-content{max-width:var(--reading);margin-left:auto;margin-right:auto}.narrow-head h2,.section-heading h2,.note-copy h2,.late-topic h2,.more-route h2{margin:.1em 0 .5em;line-height:1.25;letter-spacing:-.02em}.narrow-head h2{font-size:clamp(30px,4vw,46px)}.narrow-head>p:not(.eyebrow){font-size:17px;color:var(--muted)}.descriptive-link{display:flex;flex-direction:column;gap:5px;margin-top:28px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;text-decoration:none}.descriptive-link strong{color:var(--brand)}.descriptive-link span{font-size:13px;color:var(--muted)}.video-focus{padding-top:90px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-heading h2{font-size:clamp(28px,3.4vw,42px);max-width:780px}.section-heading>a{white-space:nowrap;color:var(--brand);font-weight:700}.watch-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:start}.feature-media{margin:0;position:sticky;top:104px}.feature-media img{width:100%;aspect-ratio:1.2;object-fit:cover;border-radius:22px;background:var(--panel)}.editorial-list{border-top:1px solid var(--line)}.editorial-list article{padding:20px 0;border-bottom:1px solid var(--line)}.editorial-list span,.catalog-meta span,.compact-feed span,.result-count,.search-results article>span{font-size:12px;color:var(--brand);font-weight:800;letter-spacing:.05em}.editorial-list h3{margin:5px 0 8px;font-size:20px;line-height:1.35}.editorial-list h3 a{text-decoration:none}.editorial-list p{margin:0;color:var(--muted);font-size:14px}.index-band{max-width:none;background:var(--panel);padding-left:max(24px,calc((100vw - var(--max))/2 + 24px));padding-right:max(24px,calc((100vw - var(--max))/2 + 24px))}.topic-index{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.topic-index a{min-height:190px;display:flex;flex-direction:column;padding:20px;background:rgba(255,255,255,.7);border:1px solid rgba(109,40,217,.08);border-radius:15px;text-decoration:none}.topic-index strong{font-size:19px}.topic-index span{margin-top:10px;color:var(--muted);font-size:13px}.topic-index small{margin-top:auto;color:var(--brand);font-weight:700}.split-note,.late-topic{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.split-note figure,.late-topic figure{margin:0}.split-note img,.late-topic img{width:100%;aspect-ratio:1.42;object-fit:cover;border-radius:22px;background:var(--panel)}.note-copy h2,.late-topic h2{font-size:clamp(28px,3.5vw,42px)}.note-copy p:not(.eyebrow),.late-topic p:not(.eyebrow){color:var(--muted)}.note-copy>a,.late-topic a{font-weight:800;color:var(--brand)}.flow-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.flow-list li{display:grid;grid-template-columns:1.1fr 2fr auto;gap:24px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.flow-list span{color:var(--muted);font-size:14px}.flow-list a{font-size:13px;color:var(--brand);font-weight:700}.compact-feed-list{border-top:1px solid var(--line)}.compact-feed-list article{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.compact-feed-list h3{margin:5px 0 0;line-height:1.4}.compact-feed-list p{margin:0;color:var(--muted)}.closing-map{background:var(--deep);color:#fff;border-radius:28px;margin-top:50px;margin-bottom:80px;max-width:calc(var(--max) - 48px)}.closing-map h2{font-size:clamp(30px,4vw,44px);margin:0 0 32px;max-width:820px}.closing-map .eyebrow{color:var(--brand-soft)}.map-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.map-links a{display:flex;flex-direction:column;text-decoration:none;padding:18px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.04)}.map-links span{margin-top:6px;color:#beb7c6;font-size:13px}.breadcrumbs{max-width:var(--max);margin:24px auto 0;padding:0 24px}.breadcrumbs ol{display:flex;gap:8px;list-style:none;margin:0;padding:0;flex-wrap:wrap;font-size:12px;color:var(--muted)}.breadcrumbs li:not(:last-child)::after{content:"/";margin-left:8px;color:#aaa}.breadcrumbs a{color:var(--brand)}.page-hero{max-width:var(--max);margin:auto;padding:70px 24px 40px}.page-hero.narrow-page{max-width:900px}.page-hero h1{font-size:clamp(38px,5vw,60px)}.page-hero .lead{max-width:880px}.watch-hero,.dimension-hero,.guide-hero,.contact-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.watch-hero figure,.dimension-hero figure,.guide-hero figure,.contact-hero figure{margin:0}.watch-hero img,.dimension-hero img,.guide-hero img,.contact-hero img{width:100%;aspect-ratio:1.45;object-fit:cover;border-radius:24px;background:var(--panel)}.prose-section{padding-top:40px}.prose-section h2{margin:2.1em 0 .5em;font-size:29px;line-height:1.35}.prose-section p{font-size:17px;color:#47414d}.prose-section a{color:var(--brand);font-weight:700}.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0 44px}.fact-grid div{padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px}.fact-grid dt{font-size:12px;color:var(--muted)}.fact-grid dd{margin:4px 0 0;font-weight:700}.inline-articles{padding-top:48px}.text-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.text-card-grid article{padding:20px;border:1px solid var(--line);background:#fff;border-radius:14px}.text-card-grid h3{margin:0 0 8px;font-size:18px}.text-card-grid h3 a{text-decoration:none}.text-card-grid p{margin:0;color:var(--muted);font-size:14px}.watch-index{padding-top:30px}.watch-index-row{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;padding:42px 0;border-top:1px solid var(--line)}.watch-index-row>div:first-child>span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--panel);color:var(--brand);font-weight:800;font-size:12px}.watch-index-row h2{font-size:28px;margin:12px 0 8px;line-height:1.3}.watch-index-row p{color:var(--muted)}.row-links{display:flex;flex-direction:column}.row-links a{padding:13px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:650}.row-links a:hover{color:var(--brand)}.watch-free-note{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;background:var(--panel);max-width:none;padding-left:max(24px,calc((100vw - var(--max))/2 + 24px));padding-right:max(24px,calc((100vw - var(--max))/2 + 24px))}.watch-free-note figure{margin:0}.watch-free-note img{width:100%;aspect-ratio:2.1;object-fit:cover;border-radius:20px}.watch-free-note h2{font-size:34px;line-height:1.3}.watch-free-note a{color:var(--brand);font-weight:800}.more-route{max-width:900px;text-align:center}.more-route h2{font-size:36px}.more-route p{color:var(--muted)}.more-route .intro-actions{justify-content:center}.topic-section{scroll-margin-top:96px;padding-top:58px;padding-bottom:58px;border-top:1px solid var(--line)}.topic-section-head{display:grid;grid-template-columns:1fr 310px;gap:40px;align-items:center}.topic-section-head h2{font-size:36px;margin:0 0 10px}.topic-section-head p:not(.eyebrow){color:var(--muted);max-width:700px}.topic-section-head figure{margin:0}.topic-section-head img{width:100%;aspect-ratio:1.6;object-fit:cover;border-radius:16px;background:var(--panel)}.topic-link-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:26px}.topic-link-list a{display:flex;flex-direction:column;padding:15px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none}.topic-link-list strong{font-size:15px}.topic-link-list span{margin-top:6px;color:var(--muted);font-size:12px}.catalog-hero{padding-bottom:24px}.catalog-list{padding-top:24px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.catalog-list article{padding:22px;background:#fff;border:1px solid var(--line);border-radius:15px}.catalog-list h2{margin:10px 0 8px;font-size:22px;line-height:1.4}.catalog-list h2 a{text-decoration:none}.catalog-list p{margin:0 0 16px;color:var(--muted);font-size:14px}.catalog-meta{display:flex;align-items:center;justify-content:space-between}.catalog-meta b{font-size:12px;color:#aaa}.term-row{display:flex;gap:7px;flex-wrap:wrap}.term-row span{font-size:11px;background:var(--panel);padding:5px 8px;border-radius:999px;color:#5c5265}.pagination{max-width:var(--max);margin:0 auto 78px;padding:0 24px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.pagination>div{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}.pagination a,.pagination span{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:9px;text-decoration:none;background:#fff;font-size:13px}.pagination a.current{background:var(--brand);border-color:var(--brand);color:#fff}.pagination span{opacity:.45}.article-shell{max-width:980px;margin:0 auto;padding:62px 24px 30px}.article-header{max-width:860px;margin:auto}.article-header h1{font-size:clamp(38px,5vw,58px)}.article-header .term-row{margin-top:22px}.article-cover{margin:38px 0 0}.article-cover img{width:100%;aspect-ratio:1.86;object-fit:cover;border-radius:24px;background:var(--panel)}.article-cover figcaption{font-size:12px;color:var(--muted);margin-top:8px}.article-body{max-width:760px;margin:52px auto 0}.article-body section{margin:0 0 48px}.article-body h2{font-size:30px;line-height:1.35;margin:0 0 18px}.article-body p{font-size:17px;color:#45404a;margin:0 0 18px}.takeaway-box{padding:28px;background:var(--panel);border-radius:18px}.takeaway-box ul{margin:0;padding-left:1.4em}.takeaway-box li+li{margin-top:8px}.related-section{padding-top:42px}.related-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.related-list a{padding:18px;border:1px solid var(--line);border-radius:13px;background:#fff;text-decoration:none}.related-list span{display:block;color:var(--muted);font-size:12px;margin-top:6px}.guide-steps{max-width:900px}.guide-steps ol{list-style:none;counter-reset:steps;margin:0;padding:0}.guide-steps li{counter-increment:steps;position:relative;padding:0 0 36px 72px}.guide-steps li::before{content:counter(steps);position:absolute;left:0;top:0;width:46px;height:46px;display:grid;place-items:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:800}.guide-steps strong{font-size:23px}.guide-steps p{color:var(--muted);margin:8px 0 0}.guide-steps a{color:var(--brand);font-weight:700}.faq-list{max-width:900px}.faq-list article{border-top:1px solid var(--line)}.faq-list article:last-child{border-bottom:1px solid var(--line)}.faq-list h2{margin:0}.faq-list h2 button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border:0;background:transparent;text-align:left;font-size:20px;font-weight:750}.faq-list h2 span{font-size:26px;color:var(--brand)}.faq-answer{padding:0 46px 22px 0;color:var(--muted)}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-grid article{padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}.contact-grid h2{margin:0 0 8px}.contact-grid p{margin:0;color:var(--muted)}.search-page-hero{max-width:900px}.inline-search{margin-top:28px}.search-results{max-width:900px;padding-top:24px}.search-results article{padding:22px 0;border-top:1px solid var(--line)}.search-results article h2{margin:5px 0 7px;font-size:22px}.search-results article h2 a{text-decoration:none}.search-results article p{margin:0;color:var(--muted)}.result-count{margin:0 0 18px}.empty-state{padding:36px;background:#fff;border:1px solid var(--line);border-radius:16px}.empty-state h2{margin-top:0}.not-found{max-width:850px;margin:80px auto;padding:60px 24px 100px;text-align:center}.not-found h1{font-size:clamp(44px,7vw,72px)}.not-found>p:not(.eyebrow){color:var(--muted);font-size:18px}.not-found-links{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:32px}.not-found-links a{padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none;color:var(--brand);font-weight:700}.site-footer{background:#1b1820;color:#eee;margin-top:40px}.footer-shell{max-width:var(--max);margin:auto;padding:54px 24px;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:34px}.footer-shell h2{margin:0 0 14px;font-size:16px}.footer-shell p{color:#aaa2ad;font-size:13px;margin:0;max-width:320px}.footer-shell section{display:flex;flex-direction:column;gap:8px}.footer-shell a{color:#cfc8d4;font-size:13px;text-decoration:none}.footer-shell a:hover{color:#fff}.footer-bottom{max-width:var(--max);margin:auto;padding:20px 24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:20px;color:#8f8795;font-size:12px}.footer-bottom a{color:#cfc8d4}
@media (max-width:1024px){.header-shell{min-height:70px}.primary-nav{position:absolute;left:20px;right:20px;top:72px;display:none;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow)}.primary-nav.is-open{display:flex}.primary-nav a{padding:10px 12px}.nav-toggle{display:inline-flex;margin-left:auto}.search-trigger{margin-left:0}.home-intro-grid,.watch-layout,.watch-hero,.dimension-hero,.guide-hero,.contact-hero,.split-note,.late-topic,.watch-free-note{grid-template-columns:1fr}.feature-media{position:static}.intro-visual{max-width:760px}.topic-index{grid-template-columns:repeat(2,1fr)}.flow-list li{grid-template-columns:1fr}.flow-list li a{justify-self:start}.topic-section-head{grid-template-columns:1fr 250px}.footer-shell{grid-template-columns:1fr 1fr}.identity-strip{grid-template-columns:1fr 1fr 1fr}}
@media (max-width:768px){.header-shell{padding-left:16px;padding-right:16px}.brand-mark{min-width:auto}.brand-mark small{display:none}.search-trigger{padding:9px 11px;font-size:12px}.home-intro{padding:54px 18px}.home-intro-grid{gap:34px}.identity-strip{grid-template-columns:1fr}.section{padding:58px 18px}.section-heading{align-items:start;flex-direction:column}.section-heading>a{white-space:normal}.topic-index,.text-card-grid,.catalog-list,.related-list,.contact-grid,.map-links,.not-found-links{grid-template-columns:1fr}.compact-feed-list article{grid-template-columns:1fr;gap:8px}.watch-index-row{grid-template-columns:1fr;gap:16px;padding:30px 0}.topic-section-head{grid-template-columns:1fr}.topic-section-head figure{max-width:520px}.topic-link-list{grid-template-columns:1fr}.fact-grid{grid-template-columns:1fr}.page-hero{padding:52px 18px 26px}.article-shell{padding:44px 18px 20px}.article-body{margin-top:38px}.footer-shell{padding:44px 18px;grid-template-columns:1fr 1fr}.footer-bottom{padding-left:18px;padding-right:18px}.closing-map{margin-left:18px;margin-right:18px}.search-dialog{padding:26px 20px}.search-row,.inline-search>div{flex-direction:column}.search-row button,.inline-search button{min-height:46px}}
@media (max-width:600px){.intro-copy h1{font-size:39px}.page-hero h1,.article-header h1{font-size:38px}.lead{font-size:16px}.home-intro{padding-top:44px}.topic-index a{min-height:auto}.footer-shell{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.pagination{gap:10px}.article-body h2{font-size:26px}.article-body p{font-size:16px}.watch-free-note h2{font-size:29px}.guide-steps li{padding-left:58px}.guide-steps li::before{width:38px;height:38px}.faq-list h2 button{font-size:18px}.brand-mark strong{font-size:16px}.header-shell{gap:8px}.nav-toggle{padding:9px 11px;font-size:12px}}
@media (max-width:375px){.header-shell{padding-left:12px;padding-right:12px}.brand-mark img{width:36px;height:36px}.brand-mark span{display:none}.nav-toggle,.search-trigger{padding:8px 10px}.home-intro{padding-left:14px;padding-right:14px}.section,.page-hero,.article-shell{padding-left:14px;padding-right:14px}.intro-copy h1{font-size:35px}.intro-actions{align-items:stretch}.button{width:100%}.identity-strip div{padding:13px}.not-found-links{gap:8px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

.scenario-list{max-width:900px;padding-top:24px}.scenario-entry{padding:32px 0;border-top:1px solid var(--line)}.scenario-entry h2{font-size:27px;line-height:1.35;margin:10px 0 18px}.scenario-entry p{margin:0 0 14px;color:#4c4653;font-size:16px}.scenario-meta{display:flex;gap:10px;flex-wrap:wrap}.scenario-meta span,.scenario-meta b{font-size:11px;padding:5px 8px;border-radius:999px;background:var(--panel);color:var(--brand)}.scenario-callout{margin-top:28px;padding:16px;background:var(--panel);border-radius:12px}.scenario-callout a{color:var(--brand);font-weight:700}