:root{
  --brand:#7C5C8E;--brand-soft:#B89ABF;--ink:#25212A;--text:#302C33;--muted:#726B76;
  --bg:#F8F5F3;--panel:#EEE8EF;--accent:#D58A45;--white:#fff;--line:#DDD4DE;
  --shadow:0 18px 50px rgba(37,33,42,.08);--radius:24px;--max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
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:1.78;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:1000;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:10px}.skip-link:focus{top:1rem}
.site-header{position:sticky;top:0;z-index:100;background:rgba(248,245,243,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(124,92,142,.12)}
.header-inner{max-width:1240px;margin:auto;min-height:76px;padding:0 28px;display:flex;align-items:center;gap:28px}
.brand-mark{display:flex;align-items:center;gap:10px;min-width:230px}.brand-mark img{width:44px;height:44px;object-fit:contain}.brand-mark span{display:flex;flex-direction:column;line-height:1.25}.brand-mark strong{font-size:1rem}.brand-mark small{color:var(--muted);font-size:.73rem;margin-top:4px}
.primary-nav{display:flex;gap:4px;align-items:center;flex:1}.primary-nav a{padding:10px 11px;border-radius:12px;font-size:.92rem;color:#534D56}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--panel);color:var(--ink)}
.search-toggle,.menu-toggle{border:0;background:var(--ink);color:#fff;border-radius:999px;padding:10px 16px}.menu-toggle{display:none}
main{min-height:70vh}.section-wrap{width:min(var(--max),calc(100% - 48px));margin:0 auto;padding:84px 0}.section-wrap+.section-wrap{border-top:1px solid rgba(124,92,142,.13)}
.eyebrow{text-transform:none;letter-spacing:.06em;color:var(--brand);font-size:.78rem;font-weight:800;margin:0 0 12px}
h1,h2,h3{font-family:Georgia,"Songti SC","SimSun",serif;color:var(--ink);line-height:1.2;margin-top:0}h1{font-size:clamp(2.55rem,5vw,5.4rem);letter-spacing:-.04em}h2{font-size:clamp(1.8rem,3.2vw,3.2rem);letter-spacing:-.025em}h3{font-size:1.25rem}.lead{font-size:1.15rem;color:#514A54;max-width:760px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:999px;font-weight:800}.button--primary{background:var(--brand);color:#fff}.button--ghost{border:1px solid var(--brand);color:var(--brand);background:transparent}.button--light{background:var(--panel);color:var(--ink)}.text-link,.section-more{display:inline-flex;align-items:center;gap:8px;font-weight:800;color:var(--brand);text-decoration:underline;text-underline-offset:4px}.lead-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.inline-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px}.inline-links a{font-weight:800;color:var(--brand)}
.home-lead{padding-top:64px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr);gap:72px;align-items:center;border-top:0!important}.home-lead__visual{margin:0;position:relative}.home-lead__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:40% 18% 32% 12%;box-shadow:var(--shadow)}.home-lead__visual figcaption{font-size:.78rem;color:var(--muted);margin-top:12px}.lead-index{margin-top:38px;border-top:1px solid var(--line)}.lead-index a{display:block;padding:13px 0;border-bottom:1px solid var(--line);color:#514A54}.lead-index a:hover{color:var(--brand)}
.section-heading{max-width:780px;margin-bottom:34px}.split-heading{max-width:none;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}.split-heading>p{color:var(--muted);margin:0 0 10px}.editorial-index{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.editorial-index a{padding:28px 20px;display:grid;grid-template-rows:auto auto 1fr;gap:10px;border-right:1px solid var(--line)}.editorial-index a:last-child{border-right:0}.editorial-index span{font-size:.75rem;color:var(--muted)}.editorial-index strong{font-family:Georgia,"Songti SC",serif;font-size:1.8rem}.editorial-index em{font-style:normal;font-size:.9rem;color:var(--muted)}
.feature-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:start}.feature-layout__copy{position:sticky;top:120px}.article-list--compact{display:grid;gap:0}.article-list--compact .article-card{grid-template-columns:140px 1fr;border-top:1px solid var(--line);padding:18px 0}.article-list--compact .article-card:last-child{border-bottom:1px solid var(--line)}.article-list--compact .article-card__image img{aspect-ratio:1/1;object-fit:cover;border-radius:18px}.article-list--compact .article-card__body p{margin:.35rem 0}.article-list--compact .article-card__body h3{margin:.2rem 0}.article-list--compact .text-link{font-size:.84rem}
.media-band{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;background:var(--ink);color:#F4EFF4;width:min(1320px,calc(100% - 32px));padding:36px;border-radius:36px;border-top:0!important}.media-band img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:24px}.media-band h2{color:#fff}.media-band .eyebrow{color:#D9B9E1}.media-band p{color:#D8D2D9}.media-band a{color:#F3C892}
.two-column-flow{display:grid;grid-template-columns:1.2fr .8fr;gap:70px}.article-stack{display:grid;gap:0}.article-stack .article-card{border-top:1px solid var(--line);padding:18px 0;grid-template-columns:1fr}.article-stack .article-card__image{display:none}.article-stack .text-link{font-size:.85rem}.soft-panel{background:var(--panel);padding:34px;border-radius:30px;align-self:start;position:sticky;top:110px}.soft-panel h3{font-size:1.6rem}.number-list{padding:0;margin:0;list-style:none}.number-list li{padding:20px 0;border-top:1px solid rgba(124,92,142,.18);display:grid;gap:5px}.number-list span{font-size:.9rem;color:var(--muted)}
.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.article-card{display:grid;gap:18px}.article-card__image img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;background:var(--panel)}.article-card__body h3{margin:2px 0 8px;font-size:1.23rem}.article-card__body p{color:var(--muted);font-size:.93rem;margin:0 0 10px}.article-card__body .eyebrow{font-size:.72rem;margin:0}.article-card__body .text-link{font-size:.84rem}.short-section .article-grid{grid-template-columns:repeat(4,1fr)}.short-section .article-card:nth-child(n+5){display:none}.section-more{margin-top:30px}
.topic-river{display:grid;grid-template-columns:1.45fr .55fr;gap:50px}.topic-river__main{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center}.topic-river__main img{border-radius:28px;aspect-ratio:3/4;object-fit:cover}.topic-river__links{border-left:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}.topic-river__links a{padding:22px;border-bottom:1px solid var(--line);font-weight:800}.topic-river__links a:hover{background:var(--panel)}
.brand-bridge{display:grid;grid-template-columns:1fr .75fr;gap:70px;align-items:center}.brand-bridge img{border-radius:50% 18% 22% 18%;aspect-ratio:4/3;object-fit:cover}.assist-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.assist-list a{background:var(--white);border:1px solid var(--line);padding:26px;border-radius:20px;display:grid;gap:8px}.assist-list span{color:var(--muted);font-size:.92rem}.end-index{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.end-index nav{border-top:1px solid var(--ink)}.end-index nav a{display:block;padding:16px 4px;border-bottom:1px solid var(--line);font-weight:800;color:var(--brand)}
.breadcrumb{width:min(var(--max),calc(100% - 48px));margin:0 auto;padding-top:34px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;color:var(--muted);font-size:.84rem}.breadcrumb li:not(:last-child)::after{content:' / ';margin-left:8px;color:#A79FA8}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}
.page-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;border-top:0!important;padding-top:50px}.page-intro__copy p{font-size:1.04rem;color:#554F57}.page-intro img{border-radius:32px;aspect-ratio:4/3;object-fit:cover}.page-intro--wide{grid-template-columns:1.25fr .75fr}.page-intro--narrow{display:block}.page-intro--narrow .page-intro__copy{max-width:850px}.page-intro--narrow h1{font-size:clamp(2.5rem,5vw,4.8rem)}
.index-toolbar{padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:30px}.index-toolbar p{margin:0}.listing-section h2{max-width:760px}.listing-section .article-grid{grid-template-columns:repeat(3,1fr)}.listing-section .article-card{padding-bottom:24px;border-bottom:1px solid var(--line)}
.related-paths__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related-paths__grid--four{grid-template-columns:repeat(4,1fr)}.related-paths__grid a{border-top:2px solid var(--brand);padding:20px 4px;display:grid;gap:6px}.related-paths__grid span{font-size:.9rem;color:var(--muted)}
.decision-map__rows{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:24px;overflow:hidden}.decision-map__rows a{padding:28px;background:#fff;display:grid;gap:8px;border-right:1px solid var(--line)}.decision-map__rows a:last-child{border-right:0}.decision-map__rows strong{font-family:Georgia,"Songti SC",serif;font-size:1.45rem}.decision-map__rows span{font-size:.92rem;color:var(--muted)}.filter-notes{display:grid;grid-template-columns:1fr 1fr;gap:70px}.filter-notes h2{font-size:2rem}
.collection-rows{display:grid;gap:0}.collection-rows h2{margin-bottom:30px}.collection-rows a{display:grid;grid-template-columns:100px 1.3fr 1fr;gap:24px;align-items:center;padding:22px 0;border-top:1px solid var(--line)}.collection-rows a:last-child{border-bottom:1px solid var(--line)}.collection-rows span{color:var(--brand);font-weight:800}.collection-rows em{font-style:normal;color:var(--muted)}.collection-visual{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.collection-visual img{border-radius:28px;aspect-ratio:16/10;object-fit:cover}
.alias-table__items{border-top:1px solid var(--ink)}.alias-table__items>div{display:grid;grid-template-columns:220px 1fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.alias-table__items strong{font-size:1.15rem;color:var(--brand)}.alias-table__items p{margin:0;color:var(--muted)}.brand-route{display:grid;grid-template-columns:1.1fr .9fr;gap:80px}.brand-route nav{display:flex;flex-direction:column;border-top:1px solid var(--ink)}.brand-route nav a{padding:16px 0;border-bottom:1px solid var(--line);font-weight:800}
.device-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.device-notes>div{background:var(--white);padding:30px;border:1px solid var(--line);border-radius:22px}.device-notes span{font-size:.76rem;color:var(--accent);font-weight:800}.device-notes h2{font-size:1.5rem;margin-top:8px}.device-notes p{color:var(--muted)}.safety-checklist{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}.safety-checklist img{border-radius:28px}.safety-checklist li{margin-bottom:16px}.note-box{background:var(--panel);padding:50px;width:min(1000px,calc(100% - 48px));border:0!important;border-radius:30px;margin-bottom:80px}.method-steps ol{list-style:none;counter-reset:steps;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.method-steps li{counter-increment:steps;background:#fff;border:1px solid var(--line);padding:24px;border-radius:18px}.method-steps li::before{content:counter(steps,decimal-leading-zero);display:block;color:var(--accent);font-weight:800;margin-bottom:12px}.method-steps span{display:block;color:var(--muted);font-size:.9rem;margin-top:8px}
.faq-list{max-width:900px}.faq-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{font-family:Georgia,"Songti SC",serif;font-size:1.35rem;font-weight:700;cursor:pointer;list-style:none;padding-right:40px;position:relative}.faq-list summary::after{content:'+';position:absolute;right:6px;top:0;color:var(--brand)}.faq-list details[open] summary::after{content:'−'}.faq-list details p{color:var(--muted);max-width:760px}
.principles__grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.principles__grid>div{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.principles__grid>div:last-child{grid-column:1/-1}.principles__grid p{color:var(--muted)}.policy-sections{max-width:900px}.policy-sections h2{font-size:1.65rem;margin-top:30px}.policy-sections p{color:#58515A}.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.safety-grid>div{background:#fff;padding:30px;border-radius:20px;border:1px solid var(--line)}.safety-grid h2{font-size:1.5rem}.contact-guide{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}.contact-guide img{border-radius:28px}.contact-guide li{margin-bottom:12px}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:500;display:grid;place-items:center;padding:24px}.search-modal__backdrop{position:absolute;inset:0;background:rgba(37,33,42,.58);backdrop-filter:blur(4px)}.search-modal__panel{position:relative;width:min(680px,100%);background:var(--bg);padding:40px;border-radius:28px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.search-modal__close{position:absolute;right:20px;top:16px;border:0;background:transparent;font-size:2rem;color:var(--muted)}.search-form label{display:block;font-weight:800;margin-bottom:8px}.search-form__row{display:flex;gap:8px}.search-form input{min-width:0;flex:1;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;color:var(--ink)}.search-form button{border:0;background:var(--brand);color:#fff;padding:12px 18px;border-radius:14px;font-weight:800}.search-page{max-width:900px}.search-page h1{font-size:clamp(2.5rem,5vw,4.6rem)}.search-form--page{margin:30px 0}.search-note{color:var(--muted)}.empty-state{background:var(--panel);padding:30px;border-radius:20px}.empty-state h2{font-size:1.6rem}
.article-page{max-width:1080px;padding-top:50px;border-top:0!important}.article-page__header{max-width:880px}.article-page__header h1{font-size:clamp(2.5rem,5vw,5rem)}.article-deck{font-size:1.15rem;color:#5B545D}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.tag-row span{background:var(--panel);padding:7px 11px;border-radius:999px;font-size:.8rem;color:var(--brand)}.article-hero{margin:42px 0 60px}.article-hero img{width:100%;max-height:620px;object-fit:cover;border-radius:30px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:70px}.article-body{font-size:1.04rem}.article-body section{margin-bottom:46px}.article-body h2{font-size:2rem;margin-bottom:18px}.article-body p{color:#49434B}.article-aside{align-self:start;position:sticky;top:110px;background:var(--panel);padding:24px;border-radius:20px;display:grid;gap:16px}.article-aside h2{font-size:1.4rem;margin:0}.article-aside p{font-size:.9rem;color:var(--muted);margin:0}.related-articles{max-width:1080px}.related-articles .article-grid{grid-template-columns:repeat(4,1fr)}
.not-found{max-width:850px}.not-found h1{font-size:clamp(3rem,7vw,6rem)}
.site-footer{background:var(--ink);color:#D9D4DB;margin-top:60px}.footer-grid{width:min(var(--max),calc(100% - 48px));margin:auto;padding:64px 0 42px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:50px}.footer-grid>div{display:flex;flex-direction:column;gap:10px}.footer-grid h2{color:#fff;font-size:1rem;margin:0 0 8px}.footer-grid a{font-size:.88rem;color:#D4CDD7}.footer-grid a:hover{color:#fff}.footer-intro p{font-size:.9rem;max-width:340px;color:#AEA7B0}.footer-brand{font-size:1.45rem!important;color:#fff!important;font-family:Georgia,"Songti SC",serif}.footer-bottom{width:min(var(--max),calc(100% - 48px));margin:auto;padding:20px 0 32px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;font-size:.8rem}.back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;border:0;background:var(--accent);color:#fff;font-weight:800;box-shadow:var(--shadow)}
body.modal-open{overflow:hidden}
@media (max-width:1100px){.header-inner{padding:0 20px}.brand-mark{min-width:180px}.brand-mark small{display:none}.primary-nav{gap:0}.primary-nav a{padding:9px 7px;font-size:.82rem}.home-lead{grid-template-columns:1fr 1fr;gap:40px}.section-wrap{padding:68px 0}.article-grid,.listing-section .article-grid{grid-template-columns:repeat(2,1fr)}.short-section .article-grid{grid-template-columns:repeat(2,1fr)}.short-section .article-card:nth-child(n+5){display:grid}.method-steps ol{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media (max-width:900px){.menu-toggle{display:inline-flex;margin-left:auto}.search-toggle{padding:9px 13px}.primary-nav{display:none;position:absolute;left:20px;right:20px;top:70px;background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:11px 12px}.home-lead,.page-intro,.feature-layout,.two-column-flow,.topic-river,.brand-bridge,.end-index,.collection-visual,.brand-route,.safety-checklist,.contact-guide,.article-layout{grid-template-columns:1fr}.home-lead__visual{max-width:650px}.feature-layout__copy,.soft-panel,.article-aside{position:static}.split-heading{grid-template-columns:1fr;gap:18px}.editorial-index{grid-template-columns:repeat(2,1fr)}.editorial-index a:nth-child(2){border-right:0}.media-band{grid-template-columns:1fr}.topic-river__main{grid-template-columns:.75fr 1.25fr}.topic-river__links{border-left:0;border-top:1px solid var(--line)}.related-paths__grid--four{grid-template-columns:repeat(2,1fr)}.decision-map__rows{grid-template-columns:1fr}.decision-map__rows a{border-right:0;border-bottom:1px solid var(--line)}.filter-notes{grid-template-columns:1fr}.method-steps ol{grid-template-columns:repeat(2,1fr)}.related-articles .article-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.header-inner{min-height:68px;padding:0 14px;gap:8px}.brand-mark{min-width:0;flex:1}.brand-mark img{width:38px;height:38px}.brand-mark strong{font-size:.9rem}.menu-toggle,.search-toggle{padding:8px 10px;font-size:.82rem}.primary-nav{left:12px;right:12px}.section-wrap{width:min(100% - 28px,var(--max));padding:54px 0}.breadcrumb{width:calc(100% - 28px);padding-top:24px}.home-lead{padding-top:40px}.home-lead h1{font-size:2.85rem}.home-lead__visual img{border-radius:24px}.lead-actions{display:grid}.lead-actions .button{width:100%}.editorial-index{grid-template-columns:1fr}.editorial-index a{border-right:0;border-bottom:1px solid var(--line)}.media-band{width:calc(100% - 20px);padding:18px;border-radius:24px}.article-grid,.listing-section .article-grid,.short-section .article-grid,.assist-list,.related-paths__grid,.related-paths__grid--four,.device-notes,.safety-grid,.principles__grid,.method-steps ol,.related-articles .article-grid{grid-template-columns:1fr}.topic-river__main{grid-template-columns:1fr}.collection-rows a{grid-template-columns:1fr;gap:4px}.alias-table__items>div{grid-template-columns:1fr;gap:4px}.index-toolbar{display:grid}.page-intro img{border-radius:20px}.article-list--compact .article-card{grid-template-columns:96px 1fr}.article-list--compact .article-card__body p{display:none}.search-form__row{display:grid}.article-hero{margin:30px 0}.article-body h2{font-size:1.65rem}.footer-grid{grid-template-columns:1fr;width:calc(100% - 32px)}.footer-bottom{width:calc(100% - 32px);flex-direction:column;gap:6px}.search-modal__panel{padding:30px 20px}.note-box{width:calc(100% - 28px);padding:30px}.back-top{right:14px;bottom:14px}}
@media (max-width:390px){.brand-mark strong{font-size:.82rem}.brand-mark img{width:34px;height:34px}.menu-toggle,.search-toggle{font-size:0;width:38px;height:38px;padding:0}.menu-toggle::after{content:'☰';font-size:1rem}.search-toggle::after{content:'⌕';font-size:1.2rem}.home-lead h1{font-size:2.45rem}.section-wrap{width:calc(100% - 24px)}h2{font-size:1.8rem}}